U.S. patent application number 16/633931 was filed with the patent office on 2021-07-08 for glass-plate working apparatus.
The applicant listed for this patent is BANDO KIKO CO., LTD.. Invention is credited to Kazuaki BANDO.
Application Number | 20210205943 16/633931 |
Document ID | / |
Family ID | 1000005522418 |
Filed Date | 2021-07-08 |
United States Patent
Application |
20210205943 |
Kind Code |
A1 |
BANDO; Kazuaki |
July 8, 2021 |
GLASS-PLATE WORKING APPARATUS
Abstract
A glass-plate working apparatus 1 is comprised of a working head
7 for working an end face in a region R1 of an end face 6 of a
glass plate 2; a moving means 10 for moving the working head 7 in
an X direction along the end face in the region R1 of the glass
plate 2; a working head 11 for working an end face in regions R2
and R3 of the end face 6 of the glass plate 2; and a moving means
12 for moving the working head 11 in the X direction along the end
face in the regions R2 and R3 of the glass plate 2.
Inventors: |
BANDO; Kazuaki;
(Tokushima-shi, Tokushima, JP) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
BANDO KIKO CO., LTD. |
Tokushima-shi, Tokushima |
|
JP |
|
|
Family ID: |
1000005522418 |
Appl. No.: |
16/633931 |
Filed: |
October 5, 2019 |
PCT Filed: |
October 5, 2019 |
PCT NO: |
PCT/JP2019/039416 |
371 Date: |
January 24, 2020 |
Current U.S.
Class: |
1/1 |
Current CPC
Class: |
B24B 9/10 20130101; B24B
41/053 20130101 |
International
Class: |
B24B 9/10 20060101
B24B009/10; B24B 41/053 20060101 B24B041/053 |
Foreign Application Data
Date |
Code |
Application Number |
Aug 4, 2019 |
JP |
2019-143432 |
Claims
1. A glass-plate working apparatus comprising: at least one first
working head means for effecting grinding or polishing, or both
grinding and polishing, of an end face in one region of a glass
plate; a first moving means for moving said at least one first
working head means along the end face in the one region of the
glass plate; at least one second working head means for effecting
grinding or polishing, or both grinding and polishing, of an end
face in another region of the glass plate; and a second moving
means for moving said at least one second working head means along
the end face in the other region of the glass plate.
2. The glass-plate working apparatus according to claim 1, wherein
said first moving means is adapted to move said at least one first
working head means along the end face in the one region of the
glass plate to cause said at least one first working head means to
work the end face in the one region of the glass plate, and said
second moving means is adapted to move said at least one second
working head means along the end face in the other region of the
glass plate to cause said at least one second working head means to
work the end face in the other region of the glass plate.
3. The glass-plate working apparatus according to claim 1, wherein
each of said first moving means and said second moving means is
adapted to move each of said at least one first working head means
and said at least one second working head means such that said at
least one first working head means and said at least one second
working head means approach each other or move away from each
other.
4. The glass-plate working apparatus according to claim 1, wherein
said at least one first working head means has at least one
grinding wheel or at least one polishing wheel, or at least one
grinding wheel and at least one polishing wheel, and said at least
one second working head means has at least one grinding wheel or at
least one polishing wheel, or at least one grinding wheel and at
least one polishing wheel.
5. The glass-plate working apparatus according to claim 1, wherein
said first working head means is constituted by a plurality of
first working head means, and said second working head means is
constituted by a plurality of second working head means.
Description
TECHNICAL FIELD
[0001] The present invention relates to a glass-plate working
apparatus for grinding or polishing, or both grinding and polishing
(hereinafter, working) an end face on one side of a glass plate or
end faces on both sides of a glass plate, e.g., a rectangular glass
plate, for automobile use, liquid crystal panel use for such as
liquid crystal television, solar cell use, furniture use,
architectural use, and the like.
BACKGROUND ART
[0002] Conventionally, the grinding of a glass plate, for example,
is carried out by a grinding apparatus disposed on a transport
passage of glass plates.
PRIOR ART DOCUMENTS
Patent Documents
[0003] Patent Document 1: JP-A-2013-169622
SUMMARY OF THE INVENTION
Problems that the Invention is to Solve
[0004] Incidentally, the grinding of glass plates is conventionally
carried out by a grinding apparatus disposed on a transport passage
of glass plates, so that it takes time and the glass plate working
efficiency as a whole is poor.
[0005] The present invention has been devised in view of the
above-described aspects, and its object is to provide a glass-plate
working apparatus in which the efficiency of working with respect
to the end face of the glass plate is excellent, and which makes it
possible to shorten the working time required therefor and is high
in productivity.
Means for Solving the Problems
[0006] A glass-plate working apparatus in accordance with the
present invention comprises: at least one first working head means
for working an end face in one region of a glass plate; a first
moving means for moving the at least one first working head means
along the end face in the one region of the glass plate; at least
one second working head means for working an end face in another
region of the glass plate; and a second moving means for moving the
at least one second working head means along the end face in the
other region of the glass plate.
[0007] According to the glass-plate working apparatus in accordance
with the present invention, since there are provided the at least
one first working head means for working the end face in the one
region of the glass plate; the first moving means for moving the at
least one first working head means along the end face in the one
region of the glass plate; the at least one second working head
means for working the end face in the other region of the glass
plate; and the second moving means for moving the at least one
second working head means along the end face in the other region of
the glass plate, the working of the end face of the glass plate can
be effected by the first working head means and the second working
head means. Therefore, the efficiency of working with respect to
the end face of the glass plate is high, and the working time of
the operations can be shortened, making it possible to carry out
glass plate working with high productivity.
[0008] With the glass-plate working apparatus in accordance with
the present invention, in a preferred embodiment, the first moving
means is adapted to move the at least one first working head means
along the end face in the one region of the glass plate to cause
the at least one first working head means to work the end face in
the one region of the glass plate, and the second moving means is
adapted to move the at least one second working head means along
the end face in the other region of the glass plate to cause the at
least one second working head means to work the end face in the
other region of the glass plate. Therefore, it is possible to
shorten the time for working the end face including the one region
and the other region of the glass plate, thereby making it possible
to efficiently carry out the working of the end face of the glass
plate.
[0009] In another embodiment of the glass-plate working apparatus
in accordance with the present invention, each of the first moving
means and the second moving means is adapted to move each of the at
least one first working head means and the at least one second
working head means such that the at least one first working head
means and the at least one second working head means approach each
other or move away from each other. Therefore, it is possible to
shorten the working time with respect to the end face of the glass
plate.
[0010] In still another embodiment of the glass-plate working
apparatus in accordance with the present invention, the at least
one first working head means has at least one grinding wheel or at
least one polishing wheel, or at least one grinding wheel and at
least one polishing wheel, and the at least one second working head
means has at least one grinding wheel or at least one polishing
wheel, or at least one grinding wheel and at least one polishing
wheel. Therefore, for example, in a case where the at least one
first working head means has the at least one grinding wheel and
the at least one polishing wheel, and the at least one second
working head means has the at least one grinding wheel and the at
least one polishing wheel, the operation ranging from grinding to
polishing can be performed continuously with respect to the end
face including the one region and the other region of the glass
plate, and the working time can be shortened, thereby making it
possible to efficiently effect working for the end face of the
glass plate.
[0011] In a further embodiment of the glass-plate working apparatus
in accordance with the present invention, the first working head
means is constituted by a plurality of first working head means,
and the second working head means is constituted by a plurality of
second working head means. Therefore, since working (grinding or
polishing, or both grinding and polishing) with respect to the end
face of the glass plate can be effected by the plurality of first
working head means and the plurality of second working head means,
respectively, the working time with respect to the end face
including the one region and the other region of the glass plate
can be made even shorter, and a glass-plate working apparatus with
high productivity can be obtained.
Advantages of the Invention
[0012] According to the present invention, it is possible to
provide a glass-plate working apparatus in which the efficiency of
working with respect to the end face of the glass plate is
excellent, and which makes it possible to shorten the working time
required therefor and is high in productivity.
BRIEF DESCRIPTION OF THE DRAWINGS
[0013] FIG. 1 is an explanatory plane view of an embodiment of the
invention;
[0014] FIG. 2 is an explanatory right side view of the embodiment
shown in FIG. 1;
[0015] FIG. 3 is a diagram for explaining the operation of the
embodiment shown in FIG. 1;
[0016] FIG. 4 is a diagram for explaining the operation of the
embodiment shown in FIG. 1;
[0017] FIG. 5 is a diagram for explaining the operation of the
embodiment shown in FIG. 1;
[0018] FIG. 6 is a diagram for explaining the operation of the
embodiment shown in FIG. 1;
[0019] FIG. 7 is a diagram for explaining the operation of another
variation of the embodiment shown in FIG. 1;
[0020] FIG. 8 is a diagram for explaining the operation of the
other variation of the embodiment shown in FIG. 1;
[0021] FIG. 9 is a diagram for explaining the operation of the
other variation of the embodiment shown in FIG. 1; and
[0022] FIG. 10 is a diagram for explaining the operation of the
other variation of the embodiment shown in FIG. 1.
MODE FOR CARRYING OUT THE INVENTION
[0023] Next, a more detailed description will be given of the
present invention on the basis of a preferred embodiment
illustrated in the drawings. It should be noted that the present
invention is not limited to the embodiment.
Embodiment
[0024] In FIGS. 1 to 10, a glass-plate working apparatus 1 in
accordance with this embodiment is comprised of: a base 3; a
supporting table 4 which is provided on the base 3 and supports, in
this embodiment, a rectangular flat plate-shaped glass plate 2; a
transporting means 5 which is provided on the base 3 and transports
the glass plate 2 within a plane parallel to a surface of the glass
plate 2, i.e., in this embodiment in an X direction which is one
direction within an horizontal plane and a direction in which the
glass plate 2 is transported; a working head 7 which serves as a
working head means for working an end face in a region R1 as one
region of an end face 6 of the glass plate 2 (the region R1 being a
region from one end 8 of the end face 6 of the glass plate 2 to a
working point A on the end face 6 side of the glass plate 2 in the
X direction), i.e., in this embodiment for grinding the end face in
the region R1 of the glass plate 2; a moving means 10 for moving
the working head 7 in the X direction along the end face in the
region R1 of the glass plate 2; a working head 11 which, in the
same way as the working head 7, serves as a working head means for
working an end face in a region R2 as another region of the end
face 6 of the glass plate 2 (the region R2 being a region from
another end 9 of the end face 6 of the glass plate 2 to a vicinity
of a central portion on the end face 6 side of the glass plate 2 in
the X direction) and a region R3 (the region R3 being a remaining
region obtained by subtracting the regions R1 and R2 from the
entire region of the end face 6 of the glass plate 2), i.e., in
this embodiment for grinding the end face in the regions R2 and R3
of the glass plate 2; a moving means 12 for moving the working head
11 in the X direction along the end face in the regions R2 and R3
of the glass plate 2; a working head 14 which serves as a working
head means for working an end face in a region R4 as one region of
another end face 13 of the glass plate 2 opposing the end face 6 of
the glass plate 2 in another direction intersecting the one
direction within the horizontal plane, i.e., in this embodiment in
a Y direction perpendicular to the X direction (the region R4 being
a region from one end 15 of the end face 13 of the glass plate 2 to
a working point B on the end face 13 side of the glass plate 2 in
the X direction), i.e., in this embodiment for grinding the end
face in the region R4 of the glass plate 2; a moving means 17 for
moving the working head 14 in the X direction along the end face in
the region R4; a working head 18 which, in the same way as the
working head 14, serves as a working head means for working an end
face in a region R5 as another region of the end face 13 of the
glass plate 2 (the region R5 being a region from another end 16 of
the end face 13 of the glass plate 2 to a vicinity of a central
portion on the end face 13 side of the glass plate 2 in the X
direction) and a region R6 (the region R6 being a remaining region
obtained by subtracting the regions R4 and R5 from the entire
region of the end face 13 of the glass plate 2), i.e., in this
embodiment for grinding the end face in the regions R5 and R6 of
the glass plate 2; and a moving means 19 for moving the working
head 18 in the X direction along the regions R5 and R6.
[0025] The supporting table 4 includes a pair of sucker devices 40
each having a rectangular sucker which sucks and fixes the glass
plate 2 from a reverse surface side of the glass plate 2 and
extends in the X direction, as well as a supporting table body 41
which is provided on the base 3 and on an upper end of which the
pair of sucker devices 40 are disposed. The supporting table 4 is
adapted to support the glass plate 2 by sucking and fixing the
glass plate 2, which has been transported by the transporting means
5, by means of the pair of sucker devices 40 at a working position
with respect to the glass plate 2.
[0026] The transporting means 5 includes a sucker device 50 having
a rectangular sucker which sucks and fixes an unworked glass plate
2, which is carried in from an upstream side 100 of the glass plate
2, from the reverse surface side of the glass plate 2 and extends
in the X direction; a supporting stand 51 on an upper end of which
the sucker device 50 is disposed and which supports the glass plate
2; a traveling table 52 on which the supporting stand 51 is
disposed and which is linearly movable (reciprocatable) in the X
direction; a pair of guide rails 53 which are disposed on the base
3 and guide and support the traveling table 52 linearly movably
(reciprocatably) in the X direction; and a driving means 54 for
linearly moving (reciprocating) the traveling table 52 in the X
direction along the guide rails 53.
[0027] The driving means 54 includes a rack 55 which is disposed on
the base 3 and extends in the X direction in parallel therewith; a
pinion gear 56 meshing with the rack 55; and a servo motor 57 which
has an output rotating shaft (motor shaft) with the pinion gear 56
fitted at one end thereof and is mounted on the traveling table 52.
Concerning the glass plate 2 sucked and fixed by means of the
sucker device 50, the transporting means 5 is adapted to carry in
the unworked glass plate 2 from the upstream side 100 of the glass
plate 2 onto the supporting table 4 and meanwhile to carry out a
worked glass plate 2 from the supporting table 4 to a downstream
side 200 by moving (reciprocating) the traveling table 52 in the X
direction through the rotation of the pinion gear 56 by the
operation of the servo motor 57 of the driving means 54 and through
the meshing of the pinion gear 56 with the rack 55.
[0028] The respective ones of the working heads 7, 11, 14, and 18
are formed similarly to one another, and the respective ones of the
moving means 10, 12, 17, and 19 are formed similarly to one
another. Therefore, a detailed description will be given hereafter
of the working head 7 and the moving means 10, while, as for the
working heads 11, 14, and 18 and the moving means 12, 17, and 19,
the same reference numerals will be given in the drawings, as
required, and a detailed description thereof will be omitted.
[0029] The working head 7 includes a grinding wheel 25 for working
the end face in the region R1 of the glass plate 2, i.e., in this
embodiment for grinding the end face in the region R1 of the glass
plate 2; a spindle motor 26 having an output rotating shaft (motor
shaft) on one end of which the grinding wheel 25 is mounted; a
slide body 27 on which the spindle motor 26 is mounted and which is
capable of raising and lowering the spindle motor 26 in a Z
direction which is a vertical direction; a pair of guide rails 28
for guiding and supporting the slide body 27 liftably movably
(reciprocatably) in the Z direction; a ball screw nut (not shown)
mounted on the slide body 27 and a ball screw 29 engaged threadedly
with the ball screw nut; and a raising/lowering servo motor 30
which is coupled to the ball screw 29 and effects the raising and
lowering movement (reciprocating movement) of the slide body 27 in
the Z direction along the pair of guide rails 28.
[0030] The moving means 10 includes a traveling table 60 which is
linearly movable (reciprocatable) in the X direction; a pair of
guide rails 62 which are disposed on the base 3 and guide and
support the traveling table 60 linearly movably (reciprocatably) in
the X direction; a driving means 63 for linearly moving
(reciprocating) the traveling table 60 in the X direction along the
guide rails 62; and a cutting amount adjusting means 64 for
adjusting a cutting amount (grinding amount) in the Y direction of
the grinding wheel 25 of the working head 7 with respect to the end
face 6 of the glass plate 2 by linearly moving (reciprocating) the
grinding head 7 in the Y direction.
[0031] The driving means 63 includes a rack 70 which is disposed on
the base 3 and extends in the X direction in parallel therewith; a
pinion gear 71 meshing with the rack 70; and a servo motor 72 which
has an output rotating shaft (motor shaft) with the pinion gear 71
fitted at one end thereof and is mounted on the traveling table 60.
The moving means 10 is adapted to linearly move (reciprocate) the
traveling table 60 in the X direction through the rotation of the
pinion gear 71 by the operation of the servo motor 72 of the
driving means 63 and through the meshing of the pinion gear 71 with
the rack 70.
[0032] The cutting amount adjusting means 64 includes a moving
stand 75 on which the working head 7 is mounted and which is
supported on the traveling table 60 linearly movably
(reciprocatably) in the Y direction; a pair of guide rails 76 for
guiding and supporting the moving stand 75 linearly movably
(reciprocatably) in the Y direction; a ball screw nut (not shown)
mounted on the moving stand 75 and a ball screw 77 engaged
threadedly with the ball screw nut; and a servo motor 78 which is
coupled to the ball screw 77 and linearly moves (reciprocates) the
moving stand 75 in the Y direction along the pair of guide rails
76. The moving means 10 is adapted to adjust the cutting amount
(grinding amount) in the Y direction of the grinding wheel 25 of
the grinding head 7 with respect to the end face 6 of the glass
plate 2 by moving the moving stand 75 in the Y direction by means
of the ball screw 77 by the operation of the servo motor 78 of the
cutting amount adjusting means 64.
[0033] The moving means 10 and 12 are adapted to move their
respective working heads 7 and 11 in such a manner as to cause the
working heads 7 and 11 to approach each other or move away from
each other by simultaneously starting the respective grinding
operation of the grinding wheels 25 of the working heads 7 and 11
under numerical control (NC).
[0034] In the same way as the moving means 10 and 12, the moving
means 17 and 19 are adapted to move their respective working heads
14 and 18 in such a manner as to cause the working heads 14 and 18
to approach each other or move away from each other by
simultaneously starting the respective grinding operation of the
grinding wheels 25 of the working heads 14 and 18 under numerical
control.
[0035] In addition, the moving means 10, 12, 17, and 19 may be
adapted to move their respective working heads 7, 11, 14, and 18 in
such a manner as to cause the working heads 7 and 11 and the
working heads 14 and 18 to approach each other or move away from
each other, respectively, by simultaneously starting the respective
grinding operation of the grinding wheels 25 of the working heads
7, 11, 14, and 18 under numerical control.
[0036] The respective moving speeds in the X direction of the
working heads 7 and 11 may be mutually different or identical.
Further, the respective moving speeds in the X direction of the
working heads 14 and 18 may be mutually different or identical.
Furthermore, the respective moving speeds in the X direction of the
working heads 7, 11, 14, and 18 may be mutually different or
identical.
[0037] On the side of the working heads 7 and 11, the pair of guide
rails 62 on that side of the working heads 7 and 11 are used in
common for the working heads 7 and 11 and, on the side of the
working heads 14 and 18 as well, the pair of guide rails 62 on that
side of the working heads 14 and 18 are used in common for the
working heads 14 and 18.
[0038] Referring to FIGS. 3 to 6, a description will be given of an
embodiment of the method of working the glass plate 2 by the
glass-plate working apparatus 1 in accordance with the
above-described embodiment.
[0039] As shown in FIG. 3, in the working of both end faces 6 and
13 of the rectangular flat plate-shaped glass plate 2, the glass
plate 2 carried in from the upstream side 100 is sucked and fixed
by means of the sucker device 50 and is transported onto the
supporting table 4 by the transporting means 5, and the unworked
glass plate 2 transported by the transporting means 5 is sucked and
fixed at the working position for the glass plate 2 by means of the
pair of sucker devices 40.
[0040] Next, as shown in FIGS. 3 and 4, with respect to the glass
plate 2 sucked and fixed at the working position for the glass
plate 2 by means of the pair of sucker devices 40, the working head
7, whose cutting amount (grinding amount) of the end face 6 of the
glass plate 2 has been adjusted in advance, is moved by the moving
means 10 in an X1 direction, which is one direction of the X
direction parallel to a direction directed from the one end 8 to
the other end 9 of the end face 6 of the glass plate 2 along the
end face in the region R1 of the glass plate 2, so as to cause the
grinding wheel 25 of the working head 7 to grind the end face in
the region R1 of the glass plate 2. During the movement in the X1
direction of the working head 7 by the moving means 10, the working
head 11, whose cutting amount (grinding amount) of the end face 6
of the glass plate 2 has been adjusted in advance, is moved by the
moving means 12 in an X2 direction, which is another direction of
the X direction parallel to a direction directed from the other end
9 to the one end 8 of the end face 6 of the glass plate 2 along the
end face in the regions R2 and R3 of the glass plate 2, so as to
cause the grinding wheel 25 of the working head 11 to grind the end
face in the region R2 of the glass plate 2. Meanwhile, the working
head 14, whose cutting amount (grinding amount) of the end face 13
of the glass plate 2 has been adjusted in advance, is moved by the
moving means 17 in the same way as the moving means 10 in the X1
direction from the one end 15 of the end face 13 of the glass plate
2 along the end face in the region R4, so as to cause the grinding
wheel 25 of the working head 14 to grind the end face in the region
R4 of the glass plate 2. During the movement in the X1 direction of
the working head 14 by the moving means 17, the working head 18,
whose cutting amount (grinding amount) of the end face 13 of the
glass plate 2 has been adjusted in advance, is moved by the moving
means 19 in the same way as the moving means 12 in the X2 direction
from the other end 16 of the end face 13 of the glass plate 2 along
the end face in the regions R5 and R6 of the glass plate 2, so as
to cause the grinding wheel 25 of the working head 18 to grind the
end face in the region R5 of the glass plate 2.
[0041] As shown in FIG. 5, after the grinding of the region R1 and
the region R2 of the glass plate 2 and the region R4 and the region
R5 of the glass plate 2, the working head 7 is moved from the
working point A of the glass plate 2 in the X2 direction by the
moving means 10, and during the movement of the working head 7 in
the X2 direction by the moving means 10, the working head 11 is
further moved by the moving means 12 in the X2 direction from the
vicinity of the central portion on the end face 6 side of the glass
plate 2 along the end face in the region R3 of the glass plate 2,
so as to cause the grinding wheel 25 of the working head 11 to
grind the end face in the region R3 of the glass plate 2.
Meanwhile, the working head 14 is moved from the working point B of
the glass plate 2 in the X2 direction by the moving means 17, and
during the movement of the working head 14 in the X2 direction by
the moving means 17, the working head 18 is further moved by the
moving means 19 in the X2 direction from the vicinity of the
central portion on the end face 13 side of the glass plate 2 along
the end face in the region R6 of the glass plate 2, so as to cause
the grinding wheel 25 of the working head 18 to grind the end face
in the region R6 of the glass plate 2.
[0042] As shown in FIG. 6, after the grinding of the end face in
the regions R1, R2, and R3 of the glass plate 2 by the moving means
10 and 12, the working head 7 is further moved in the X2 direction
by the moving means 10, and during the movement of the working head
7 in the X2 direction by the moving means 10, the working head 11
is moved from the working point A of the glass plate 2 in the X1
direction by the moving means 12, to thereby return the working
heads 7 and 11 to the positions shown in FIG. 6 by the moving means
10 and 12, respectively. Meanwhile, after the grinding of the end
face in the regions R4, R5, and R6 of the glass plate 2 by the
moving means 17 and 19, the working head 14 is further moved in the
X2 direction by the moving means 17, and during the movement of the
working head 14 in the X2 direction by the moving means 17, the
working head 18 is moved from the working point B of the glass
plate 2 in the X1 direction by the moving means 19, to thereby
return the working heads 14 and 19 to the positions shown in FIG. 6
by the moving means 17 and 19, respectively.
[0043] After the return of the working heads 7, 11, 14, and 19, the
glass plate 2, whose both end faces 6 and 13 (the respective end
faces in the regions R1, R2, and R3 and the regions R4, R5, and R6)
have been ground, is carried out by the transporting means 5 from
the supporting table 4 to the downstream side 200 while being
sucked and fixed by means of the sucker device 50.
[0044] The moving means 10 allows the end face in the region R1 of
the glass plate 2 to be ground by the grinding wheel 25 of the
working head 7, while the moving means 12 allows the end face in
the respective regions R2 and R3 of the glass plate 2 to be ground
by the grinding wheel 25 of the working head 11, to thereby effect
the grinding of the end face 6 of the glass plate 2. Meanwhile, the
moving means 17 allows the end face in the region R4 of the glass
plate 2 to be ground by the grinding wheel 25 of the working head
14, while the moving means 19 allows the end face in the respective
regions R5 and R6 of the glass plate 2 to be ground by the grinding
wheel 25 of the working head 18, to thereby effect the grinding of
the end face 13 of the glass plate 2.
[0045] In this embodiment, in the grinding of the end face in each
of the region R1 of the glass plate 2 by the grinding wheel 25 of
the working head 7 and the region R2 of the glass plate 2 by the
grinding wheel 25 of the working head 11, the moving means 10 and
the moving means 12 are respectively adapted to move the working
head 7 in the X1 direction along the end face in the region R1 of
the glass plate 2 and move the working head 11 in the X2 direction
along the end face in the region R2 of the glass plate 2,
respectively, so as to cause the working head 7 and the working
head 11 to approach each other.
[0046] In this embodiment, in the grinding of the end face in each
of the region R4 of the glass plate 2 by the grinding wheel 25 of
the working head 14 and the region R5 of the glass plate 2 by the
grinding wheel 25 of the working head 18, the moving means 17 and
the moving means 19 are respectively adapted to move the working
head 14 in the X1 direction along the end face in the region R4 of
the glass plate 2 and move the working head 18 in the X2 direction
along the end face in the region R5 of the glass plate 2,
respectively, so as to cause the working head 14 and the working
head 18 to approach each other.
[0047] In this embodiment, the moving means 10 is adapted to move
the working head 7 in the X1 direction along the end face in the
region R1 of the glass plate 2 to thereby cause the grinding wheel
25 of the working head 7 to grind the end face in the region R1 of
the glass plate 2, while the moving means 12 is adapted to move the
working head 11 in the X2 direction along the end face in the
regions R2 and R3 of the glass plate 2 to thereby cause the
grinding wheel 25 of the working head 11 to grind the end face in
the respective regions R2 and R3 of the glass plate 2, so as to
effect the grinding of the end face 6 of the glass plate 2.
Meanwhile, the moving means 17 is adapted to move the working head
14 in the X1 direction along the end face in the region R4 of the
glass plate 2 to thereby cause the grinding wheel 25 of the working
head 14 to grind the end face in the region R4 of the glass plate
2, while the moving means 19 is adapted to move the working head 18
in the X2 direction along the end face in the regions R5 and R6 of
the glass plate 2 to thereby cause the grinding wheel 25 of the
working head 18 to grind the end face in the respective regions R5
and R6 of the glass plate 2, so as to effect the grinding of the
end face 13 of the glass plate 2. On the other hand, the following
arrangement may be adopted in substitution for this arrangement. As
shown in FIGS. 7 to 10, the moving means 10 is adapted to move the
working head 7 from the working point A of the glass plate 2 in the
X2 direction along the end face in the region R1 of the glass plate
2 to thereby cause the grinding wheel 25 of the working head 7 to
grind the end face in the region R1 of the glass plate 2, while the
moving means 12 is adapted to move the working head 11 from the
working point A of the glass plate 2 in the X1 direction along the
end face in the regions R3 and R2 of the glass plate 2 to thereby
cause the grinding wheel 25 of the working head 11 to grind the end
face in the regions R3 and R2 of the glass plate 2, so as to effect
the grinding of the end face 6 of the glass plate 2. Meanwhile, the
moving means 17 is adapted to move the working head 14 from the
working point B of the glass plate 2 in the X2 direction along the
end face in the region R4 of the glass plate 2 to thereby cause the
grinding wheel 25 of the working head 14 to grind the end face in
the region R4 of the glass plate 2, while the moving means 19 is
adapted to move the working head 18 from the working point B of the
glass plate 2 in the X1 direction along the end face in the regions
R6 and R5 of the glass plate 2 to thereby cause the grinding wheel
25 of the working head 18 to grind the end face in the regions R6
and R5 of the glass plate 2, so as to effect the grinding of the
end face 13 of the glass plate 2.
[0048] Referring to FIGS. 7 to 10, a description will be given of
another embodiment of the method of working the glass plate 2 by
the glass-plate working apparatus 1 in accordance with the
above-described embodiment.
[0049] As shown in FIGS. 7 and 8, with respect to the glass plate 2
sucked and fixed at the working position for the glass plate 2 by
means of the pair of sucker devices 40, the working head 7 is moved
by the moving means 10 from the one end 8 of the end face 6 of the
glass plate 2 to the working point A of the glass plate 2 in a
state of noncontact with the end face in the region R1 of the glass
plate 2, and during the movement of the working head 7 in the X1
direction from the one end 8 of the end face 6 of the glass plate 2
to the working point A of the glass plate 2 by the moving means 10,
the working head 11 is moved by the moving means 12 from the other
end 9 of the end face 6 of the glass plate 2 to the vicinity of the
central portion on the end face 6 side of the glass plate 2 in a
state of noncontact with the end face in the regions R2 and R3 of
the glass plate 2. Meanwhile, the working head 14 is moved by the
moving means 17 in the same way as the moving means 10 from the one
end 15 of the end face 13 of the glass plate 2 to the working point
B of the glass plate 2 in a state of noncontact with the end face
in the region R4 of the glass plate 2, and during the movement of
the working head 14 in the X1 direction from the one end 15 of the
end face 13 of the glass plate 2 to the working point B of the
glass plate 2 by the moving means 17, the working head 18 is moved
by the moving means 19 in the same way as the moving means 12 from
the other end 16 of the end face 13 of the glass plate 2 to the
vicinity of the central portion on the end face 13 side of the
glass plate 2 in a state of noncontact with the end face in the
regions R5 and R6 of the glass plate 2.
[0050] As shown in FIG. 8, after the movement of the working heads
7 and 11, by using the moving means 10, the moving stand 75 of the
moving means 10 is moved in the Y direction by operating the servo
motor 78 of the cutting amount adjusting means 64 of the moving
means 10 so as to cause the grinding wheel 25 of the working head 7
to be brought into contact with the glass plate 2 and grind the
vicinity of the working point A of the glass plate 2. Meanwhile,
after the movement of the working heads 14 and 18, by using the
moving means 17, the moving stand 75 of the moving means 17 is
moved in the Y direction by operating the servo motor 78 of the
cutting amount adjusting means 64 of the moving means 17 so as to
cause the grinding wheel 25 of the working head 14 to be brought
into contact with the glass plate 2 and grind the vicinity of the
working point B of the glass plate 2.
[0051] As shown in FIG. 9, after the grinding of the vicinity of
the working point A of the glass plate 2 by the working head 7, the
grinding wheel 25 of the working head 7 is moved by the moving
means 10 in the X2 direction from the working point A of the glass
plate 2 along the end face in the region R1 of the glass plate 2 in
a state of contact with the glass plate 2, to thereby grind a part
of the end face in the region R1 by the grinding wheel 25 of the
working head 7. During the movement of the working head 7 in the X2
direction by the moving means 10, by using the moving means 12, the
moving stand 75 of the moving means 12 is moved in the Y direction
by operating the servo motor 78 of the cutting amount adjusting
means 64 of the moving means 12 so as to cause the grinding wheel
25 of the working head 11 to be brought into contact with the
working point A of the glass plate 2. Meanwhile, after the grinding
of the vicinity of the working point B of the glass plate 2 by the
working head 14, the grinding wheel 25 of the working head 14 is
moved by the moving means 17 in the X2 direction from the working
point B of the glass plate 2 along the end face in the region R4 of
the glass plate 2 in a state of contact with the glass plate 2, to
thereby grind a part of the end face in the region R4 by the
grinding wheel 25 of the working head 14. During the movement of
the working head 14 in the X2 direction by the moving means 17, by
using the moving means 19, the moving stand 75 of the moving means
19 is moved in the Y direction by operating the servo motor 78 of
the cutting amount adjusting means 64 of the moving means 19 so as
to cause the grinding wheel 25 of the working head 18 to be brought
into contact with the working point B of the glass plate 2.
[0052] As shown in FIGS. 9 and 10, the working head 7 is further
moved in the X2 direction along the end face in the region R1 of
the glass plate 2 by the moving means 10, so as to cause the
grinding wheel 25 of the working head 7 to grind the end face in
the remaining region of the region R1 of the glass plate 2. During
the movement of the working head 7 in the X2 direction by the
moving means 10, the working head 11 is moved by the moving means
12 in the X1 direction from the working point A of the glass plate
2 along the end face in the regions R3 and R2 of the glass plate 2,
so as to cause the grinding wheel 25 of the working head 11 to
grind the end face in the regions R2 and R3 of the glass plate 2,
and the working heads 7 and 11 are respectively returned to the
positions shown in FIG. 10 by the moving means 10 and 12.
Meanwhile, the working head 14 is further moved in the X2 direction
along the end face in the region R4 of the glass plate 2 by the
moving means 17, so as to cause the grinding wheel 25 of the
working head 14 to grind the end face in the remaining region of
the region R4 of the glass plate 2. During the movement of the
working head 14 in the X2 direction by the moving means 17, the
working head 18 is moved by the moving means 19 in the X1 direction
from the working point B of the glass plate 2 along the end face in
the regions R6 and R5 of the glass plate 2, so as to cause the
grinding wheel 25 of the working head 18 to grind the end face in
the regions R5 and R6 of the glass plate 2, and the working heads
14 and 18 are respectively returned to the positions shown in FIG.
10 by the moving means 17 and 19.
[0053] After the return of the working heads 7, 11, 14, and 19, the
glass plate 2, whose both end faces 6 and 13 have been ground, is
transported and carried out by the transporting means 5 from the
supporting table 4 to the downstream side 200 while being sucked
and fixed by means of the sucker device 50.
[0054] The glass-plate working apparatus 1 in accordance with this
embodiment is comprised of: the base 3; the supporting table 4
which is provided on the base 3 and supports the glass plate 2; the
transporting means 5 which is provided on the base 3 and transports
the glass plate 2 in the X direction; the working head 7 for
grinding the end face in the region R1 of one end face 6 of the
glass plate 2; the moving means 10 for moving the working head 7 in
the X direction along the end face in the region R1 of the glass
plate 2; the working head 11 for grinding the end face in the
regions R2 and R3 of the glass plate 2; the moving means 12 for
moving the working head 11 in the X direction along the end face in
the regions R2 and R3 of the glass plate 2; the working head 14 for
grinding the end face in the region R4 of the glass plate 2; the
moving means 17 for moving the working head 14 in the X direction
along the end face in the region R4 of the glass plate 2; the
working head 18 for grinding the end face in the regions R5 and R6
of the glass plate 2; and the moving means 19 for moving the
working head 18 in the X direction along the end face in the
regions R5 and R6 of the glass plate 2. Therefore, since the
working of the end face in the respective regions R1, R2, and R3 of
the glass plate 2 can be effected by the working head 7 and the
working head 11, and the working of the end face in the respective
regions R4, R5, and R6 of the glass plate 2 can be effected by the
working head 14 and the working head 18, the efficiency of working
with respect to the end faces of the glass plate is high, and the
working time of these operations can be shortened, thereby making
it possible to carry out glass plate working with high
productivity.
[0055] In the embodiment of the method of working the glass plate 2
by the glass-plate working apparatus 1 in accordance with this
embodiment shown in FIGS. 3 to 6, the following arrangement may be
adopted. After the grinding of the end face in the region R1 of the
glass plate 2 by the working head 7, the moving stand 75 of the
moving means 10 is moved in the Y direction by operating the servo
motor 78 of the cutting amount adjusting means 64 of the moving
means 10, so as to move the grinding wheel 25 of the working head 7
away from the end face 6 of the glass plate 2. Subsequently, by
operating the servo motor 72 of the driving means 63 of the moving
means 10, the grinding wheel 25 of the working head 7 is moved in
the X2 direction from the working point A of the glass plate 2 in a
state of noncontact with the end face in the region R1 of the glass
plate 2. Meanwhile, after the grinding of the end face in the
region R4 of the glass plate 2 by the working head 14, the moving
stand 75 of the moving means 17 is moved in the Y direction by
operating the servo motor 78 of the cutting amount adjusting means
64 of the moving means 17, so as to move the grinding wheel 25 of
the working head 14 away from the end face 13 of the glass plate 2.
Subsequently, by operating the servo motor 72 of the driving means
63 of the moving means 17, the grinding wheel 25 of the working
head 14 is moved in the X2 direction from the working point B of
the glass plate 2 in a state of noncontact with the end face in the
region R4 of the glass plate 2. In addition, an arrangement may be
provided such that the respective grinding wheels 25 of the working
heads 7 and 14 are not moved away from the end face 6 and the end
face 13, respectively, of the glass plate 2, and are moved in the
X2 direction by operating the respective servo motors 72 of the
moving means 10 and 17.
[0056] In the embodiment of the method of working the glass plate 2
by the glass-plate working apparatus 1 in accordance with this
embodiment shown in FIGS. 3 to 6, the following arrangement may be
adopted. After the grinding of the end face in the regions R2 and
R3 of the glass plate 2 by the working head 11, the moving stand 75
of the moving means 12 is moved in the Y direction by operating the
servo motor 78 of the cutting amount adjusting means 64 of the
moving means 12, so as to move the grinding wheel 25 of the working
head 11 away from the end face 6 of the glass plate 2.
Subsequently, by operating the servo motor 72 of the driving means
63 of the moving means 12, the grinding wheel 25 of the working
head 11 is moved in the X1 direction from the working point A of
the glass plate 2 in a state of noncontact with the end face in the
regions R3 and R2 of the glass plate 2. Meanwhile, after the
grinding of the end face in the regions R5 and R6 of the glass
plate 2 by the working head 18, the moving stand 75 of the moving
means 19 is moved in the Y direction by operating the servo motor
78 of the cutting amount adjusting means 64 of the moving means 19,
so as to move the grinding wheel 25 of the working head 18 away
from the end face 13 of the glass plate 2. Subsequently, by
operating the servo motor 72 of the driving means 63 of the moving
means 19, the grinding wheel 25 of the working head 18 is moved in
the X1 direction from the working point B of the glass plate 2 in a
state of noncontact with the end face in the regions R6 and R5 of
the glass plate 2. In addition, an arrangement may be provided such
that the respective grinding wheels 25 of the working heads 11 and
18 are not moved away from the end face 6 and the end face 13,
respectively, of the glass plate 2, and are moved in the X1
direction by operating the respective servo motors 72 of the moving
means 12 and 19.
[0057] In this embodiment, after the grinding of both end faces 6
and 13 (the respective end faces in the regions R1, R2, and R3 and
the regions R4, R5, and R6) of the glass plate 2, polishing may be
performed with respect to both end faces 6 and 13 of the glass
plate 2 in a separate process (online or offline) on the downstream
side 200 of the glass-plate working apparatus 1 in accordance with
this embodiment.
[0058] In addition, in the case where polishing is performed with
respect to both end faces 6 and 13 of the glass plate 2 in the
separate process, polishing may be performed with respect to both
end faces 6 and 13 of the glass plate 2 by another working head
having a polishing wheel, and the other working head may be
comprised of a similar arrangement to those of the moving means 10,
12, 17, and 19 and the working heads 7, 11, 14, and 18 in
accordance with this embodiment.
[0059] In this embodiment, each of the working heads 7, 11, 14, and
18 has the grinding wheel 25, and in the case where polishing is
performed with respect to both end faces 6 and 13 of the glass
plate 2, each of the working heads 7, 11, 14, and 18 may have a
polishing wheel in substitution for the grinding wheel 25.
[0060] In this embodiment, each of the working heads 7, 11, 14, and
18 has the grinding wheel 25, and in the case where grinding and
polishing are consecutively performed with respect to both end
faces 6 and 13 of the glass plate 2, each of the working heads 7,
11, 14, and 18 may further have a polishing wheel in addition to
the grinding wheel 25. In this case, since each of the working
heads 7, 11, 14, and 18 is provided with the grinding wheel 25 and
the polishing wheel, it is unnecessary to perform polishing with
respect to both end faces 6 and 13 of the glass plate 2 in the
separate process (online or offline), and the operation ranging
from grinding to polishing can be performed continuously with
respect to both end faces 6 and 13 of the glass plate 2, thereby
making it possible to shorten the working time in grinding and
polishing.
[0061] Each of the working heads 7, 11, 14, and 18 has the grinding
wheel 25 or the polishing wheel, or the grinding wheel 25 and the
polishing wheel. However, by combining these grinding wheel(s) 25
and the polishing wheel(s), each of the working heads 7, 11, 14,
and 18 may have, for example, the grinding wheel 25 and a plurality
of polishing wheels, or a plurality of grinding wheels 25 and a
polishing wheel, or a plurality of grinding wheels 25 and a
plurality of polishing wheels.
[0062] Furthermore, each of the working heads 7, 11, 14, and 18 may
be comprised of pluralities of working heads 7, 11, 14, and 18.
According to the glass-plate working apparatus 1 having such
pluralities of working heads 7, 11, 14, and 18, grinding or
polishing, or both grinding and polishing, can be performed with
respect to both end faces 6 and 13 of the glass plate 2 by the
pluralities of working heads 7, 11, 14, and 18, the working time
with respect to both end faces 6 and 13 of the glass plate 2 can be
made even shorter, and the glass-plate working apparatus 1 with
high productivity can be obtained.
[0063] Each of the pluralities of working heads 7, 11, 14, and 18
may have any one of at least one grinding wheel 25 or at least one
polishing wheel, or at least one grinding wheel 25 and at least one
polishing wheel.
[0064] In this embodiment, each of the moving means 10, 12, 17, and
19 and the working heads 7, 11, 14, and 18 may be numerically
controlled independently, or each of the moving means 10, 12, 17,
and 19 and the working heads 7, 11, 14, and 18 may be numerically
controlled synchronously.
[0065] In this embodiment, as each of the moving means 10, 12, 17,
and 19 and the working heads 7, 11, 14, and 18 is numerically
controlled independently or synchronously, both end faces 6 and 13
of the glass plate 2 may be ground respectively continuously.
[0066] In this embodiment, although each of both end faces 6 and 13
of the glass plate 2 is adapted to be ground, working may be
provided for either one end face between both end faces 6 and 13 of
the glass plate 2.
[0067] In this embodiment, each of the working heads 7 and 11
effects working of the end face in the respective regions R1, R2
and R3 of the glass plate 2 by moving in the X direction along the
end face in the region R1 and the regions R2 and R3 of the glass
plate 2, while each of the working heads 14 and 18 effects working
of the end face in the respective regions R3, R4, and R6 of the
glass plate 2 by moving in the X direction along the end face in
the region R4 and the regions R5 and R6 of the glass plate 2.
However, an arrangement may be provided such that, as the servo
motors 72 of the driving means 63 of the moving means 10, 12, 17,
and 19 and the servo motors 78 of the cutting amount adjusting
means 64 are numerically controlled synchronously, the respective
ones of the working heads 7, 11, 14, and 18 may be moved in the X
direction and the Y direction (made to undergo XY plane coordinate
movement) along the end face in the regions R1, R2, and R3 and the
regions R4, R5, and R6 of the glass plate 2 so as to effect working
of both end faces 6 and 13 of the glass plate 2, e.g., working of
curves with respect to both end faces 6 and 13 of the glass plate
2.
[0068] In this embodiment, although the working point A of the
glass plate 2 is provided on the one end 8 side of the glass plate
2, the working point A may be provided on the other end 9 side of
the glass plate 2, or the vicinity of a central portion on the end
face 6 side of the glass plate 2, or a central portion in the X
direction of the end face 6 of the glass plate 2 (this central
portion being located between the one end 8 and the other end 9 of
the end face 6 of the glass plate 2 in the X direction). In
addition, although the working point B of the glass plate 2 is
provided on the one end 15 side of the glass plate 2, in the same
way as the working point A, the working point B may be provided on
the other end 16 side of the glass plate 2, or the vicinity of a
central portion on the end face 13 side of the glass plate 2, or a
central portion in the X direction of the end face 13 of the glass
plate 2 (this central portion being located between the one end 15
and the other end 16 of the end face 13 of the glass plate 2 in the
X direction). In each case, it is possible to shorten the working
time of the grinding or polishing, or both grinding and polishing,
of the glass plate 2.
[0069] In this embodiment, the glass plate 2 has a rectangular flat
plate shape, and the glass plate 2 may alternatively have any shape
among an elliptical shape, a circular shape, a polygonal shape, a
square shape, a quadrilateral shape, and the like.
[0070] In this embodiment, as the servo motor 72 of the driving
means 63 for moving the traveling table 60 in the X direction and
the servo motor 78 of the cutting amount adjusting means 64 for
moving the moving stand 75 in the Y direction are numerically
controlled, the working heads 7, 11, 14, and 18 are also capable of
effecting corner cutting (cornering) of four corners of the glass
plate 2 (the one end 8 and the other end 9 of the end face 6 of the
glass plate 2 and the one end 15 and the other end 16 of the end
face 13 of the glass plate 2).
[0071] In this embodiment, the working heads 7, 11, 14, and 18 may
effect chamfering of the glass plate 2 together with the working of
both end faces 6 and 13 of the glass plate 2, or may effect
chamfering together with corner cutting of four corners of the
glass plate 2.
[0072] In this embodiment, the driving means 54 of the transporting
means 5 includes the rack 55 which is disposed on the base 3 and
extends in the X direction in parallel therewith; the pinion gear
56 meshing with the rack 55; and the servo motor 57 which has the
output rotating shaft (motor shaft) with the pinion gear 56 fitted
at one end thereof and is mounted on the traveling table 52.
Alternatively, however, the driving means 54 may include a ball
screw nut, a ball screw engaged threadedly with the ball screw nut,
and a servo motor which is coupled to the ball screw, in which case
the transporting means 5 is capable of transporting the glass plate
2 more precisely with respect to the supporting table 4.
[0073] In this embodiment, the driving means 63 of each of the
moving means 10, 12, 17, and 19 includes the rack 70 which is
disposed on the traveling table 60 and extends in the X direction
in parallel therewith; the pinion gear 71 meshing with the rack 70;
and the servo motor 72 which has the output rotating shaft (motor
shaft) with the pinion gear 71 fitted at one end thereof and is
mounted on the traveling table 60. Alternatively, however, the
driving means 63 may include a ball screw nut, a ball screw engaged
threadedly with the ball screw nut, and a servo motor which is
coupled to the ball screw, in which case each of the moving means
10, 12, 17, and 19 is capable of effecting working more precisely
by each of the working heads 7, 11, 14, and 18 in the working of
the glass plate 2.
[0074] In this embodiment, in the working of the end face 6 of the
glass plate 2, an arrangement may be provided such that, as the
servo motors 72 of the driving means 63 of the moving means 10 and
12 and the servo motors 78 of the cutting amount adjusting means 64
are numerically controlled synchronously, the end face in the
region R1 of the glass plate 2 and the end face in the respective
regions R2 and R3 of the glass plate 2 are simultaneously worked.
In the working of the end face 13 of the glass plate 2, an
arrangement may be provided such that, as the servo motors 72 of
the driving means 63 of the moving means 17 and 19 and the servo
motors 78 of the cutting amount adjusting means 64 are numerically
controlled synchronously, the end face in the region R4 of the
glass plate 2 and the end face in the respective regions R5 and R6
of the glass plate 2 are simultaneously worked.
DESCRIPTION OF REFERENCE NUMERALS
[0075] 1: glass-plate working apparatus [0076] 2: glass plate
[0077] 3: base [0078] 4: supporting table [0079] 7, 11, 14, 18:
working head [0080] 10, 12, 17, 19: moving means [0081] 62: guide
rail
* * * * *