U.S. patent application number 14/712036 was filed with the patent office on 2016-03-31 for angle adjustment device for grinding machine.
The applicant listed for this patent is PO CHANG CHUANG. Invention is credited to PO CHANG CHUANG.
Application Number | 20160089762 14/712036 |
Document ID | / |
Family ID | 53187622 |
Filed Date | 2016-03-31 |
United States Patent
Application |
20160089762 |
Kind Code |
A1 |
CHUANG; PO CHANG |
March 31, 2016 |
ANGLE ADJUSTMENT DEVICE FOR GRINDING MACHINE
Abstract
A grinding machine includes a base with a U-shaped frame on the
base. The U-shaped frame has two extensions and each have a first
hole and a second hole which is an oval hole. A grinding roller is
connected to the frame. An adjustment device includes a first shaft
and a second shaft. The first shaft extends through a portion of
the base and the two respective first holes of the extensions. The
second shaft extends through the second holes of the two
extensions. An eccentric sleeve and an adjustment member are
located in the second hole of one of the extensions, and each have
an eccentric hole. The adjustment member is mounted to the
eccentric sleeve. The second shaft extends through the two
eccentric holes. When rotating the adjustment member and the
eccentric sleeve, the frame and the grinding roller are pivoted
about the first shaft.
Inventors: |
CHUANG; PO CHANG; (TAICHUNG,
TW) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
CHUANG; PO CHANG |
TAICHUNG |
|
TW |
|
|
Family ID: |
53187622 |
Appl. No.: |
14/712036 |
Filed: |
May 14, 2015 |
Current U.S.
Class: |
451/184 |
Current CPC
Class: |
B24B 27/0069 20130101;
B24B 41/02 20130101; B24B 27/02 20130101 |
International
Class: |
B24B 27/00 20060101
B24B027/00; B24B 41/02 20060101 B24B041/02 |
Foreign Application Data
Date |
Code |
Application Number |
Sep 25, 2014 |
TW |
103217026 |
Claims
1. An adjustment device for a grinding machine, comprising: a base;
a U-shaped frame located on a top of the base having a first
extension and a second extension, each of the first and second
extensions having a first hole and a second hole, each of the
second holes being a non-circular hole, two tubular members on the
base, the first and second extensions mounted to two respective
outsides of the two tubular members; a feeding platform located on
the base; a grinding roller transversely connected to the frame,
and an adjustment device connected to the frame and having a first
shaft and a second shaft, the first shaft having a fixing end and
an operation end, the fixing end of the first shaft extending
through the tubular member and the first hole of the second
extension, the operation end of the first shaft extending through
the other tubular member and the first hole of the first extension,
the second shaft having an elongate body which has a restriction
end and a connection end, the connection end extending through the
second hole of the second extension, the two tubular members and
the second hole of the first extension, the restriction end being
sized larger than the second hole of the second extension, the
connection end extending beyond the second hole of the first
extension, an eccentric sleeve located in the second hole of the
first extension and having a first eccentric hole defined axially
therethrough, an adjustment member having a second eccentric hole
defined axially therethrough, the eccentric sleeve securely
extending through the second eccentric hole, the adjustment member
engaged with the second hole of the first extension.
2. The adjustment device as claimed in claim 1, wherein the
eccentric sleeve has two flat faces defined in an outside
thereof.
3. The adjustment device as claimed in claim 1 wherein a first
urging member connected to the operation end extending beyond the
first hole of the first extension, the connection end of the second
shaft has outer threads which are threadedly connected to a second
urging member.
4. The adjustment device as claimed in claim 1, wherein the
eccentric sleeve has a radial hole which communicates with the
first eccentric hole, a bolt threadedly extends through the radial
hole and contacts against the elongate body.
5. The adjustment device as claimed in claim 1, wherein the
adjustment member has a lever extending therefrom.
6. The adjustment device as claimed in claim 1, wherein the
adjustment device has a fixing board which is located between the
fixing end of the first shaft and the restriction end of the second
shaft.
7. The adjustment device as claimed in claim 1, wherein the two
second holes each are an oval hole.
Description
BACKGROUND OF THE INVENTION
[0001] 1. Fields of the Invention
[0002] The present invention relates to an adjustment device, and
more particularly, to an adjustment device for adjustment of an
angle of a grinding roller of a grinding machine.
[0003] 2. Descriptions of Related Art
[0004] The conventional grinding machine is disclosed in FIG. 1 and
generally comprises a base 1 with a feeding platform 2 located on
the base 1, and a grinding roller 3 is located above the feeding
platform 2 so as to form a space 5 between the grinding roller 3
and the feeding platform 2. A frame 4 is connected to the feeding
platform 2 and located on one end of the grinding roller 3. The
feeding platform 2 is parallel to the grinding roller 3. An object
(not shown) is fed from the feeding platform 2 and positioned in
the space 5, so that the grinding roller 3 is lowered to grind the
surface of the object. The space 5 has to be set according to the
size of the object to he ground so as to obtain a flat and smooth
surface on the object.
[0005] However, the frame 4 is connected to one end of the grinding
roller 3 which becomes a cantilever structure, and the grinding
roller 3 may tilt after a period of time of use. Therefore, the
feeding platform 2 is not parallel to the grinding roller 3, and
the tilt grinding roller 3 cannot grind a flat and smooth surface
on the object. The user has to adjust the grinding roller 3
frequently.
[0006] The present invention intends to provide an adjustment
device for adjusting the grinding roller of a grinding machine, so
as to improve the shortcomings mentioned above.
SUMMARY OF THE INVENTION
[0007] The present invention relates to an adjustment device for a
grinding machine, and comprises a base and a U-shaped frame is
located on the top of the base. The U-shaped frame has a first
extension and a second extension, each of the first and second
extensions has a first hole and a second hole which is an oval
hole. Two tubular members are located on the base, and the first
and second extensions are mounted to two respective outsides of the
two tubular members. A feeding platform is located on the base. A
grinding roller is transversely connected to the frame.
[0008] An adjustment device is connected to the frame and has a
first shaft and a second shaft. The first shaft has a fixing end
and an operation end. The fixing end of the first shaft extends
through the tubular member and the first hole of the second
extension. The operation end of the first shaft extends through the
other tubular member and the first hole of the first extension. The
second shaft has an elongate body which has a restriction end and a
connection end which extends through the second hole of the second
extension, the two tubular members and the second hole of the first
extension. The restriction end is sized larger than the second hole
of the second extension. The connection end extends beyond the
second hole of the first extension. An eccentric sleeve is located
in the second hole of the first extension and has a first eccentric
hole defined axially therethrough. An adjustment member has a
second eccentric hole defined axially therethrough. The eccentric
sleeve securely extends through the second eccentric hole. The
adjustment member is engaged with the second hole of the first
extension. When rotating the adjustment member and the eccentric
sleeve, the frame and the grinding roller are pivoted about the
first shaft.
[0009] The primary object of the present invention is to provide an
adjustment device for a grinding machine, the transverse grinding
roller is adjusted an angle relative to the feeding platform by
rotating the adjustment member and the eccentric sleeve. The frame
and the grinding roller are pivoted about the first shaft so as to
ensure that the object to be ground has a flat and smooth
surface.
[0010] The present invention will become more obvious from the
following description when taken in connection with the
accompanying drawings which show, for purposes of illustration
only, a preferred embodiment in accordance with the present
invention.
BRIEF DESCRIPTION OF TI IE DRAWINGS
[0011] FIG. 1 is a side view to show a conventional grinding
machine;
[0012] FIG. 2 is a perspective view to show the grinding machine
with the adjustment device of the present invention;
[0013] FIG. 3 shows the fixing board connected to the first and
second shaft of the adjustment device;
[0014] FIG. 4 is an exploded view to show the adjustment device of
the present invention;
[0015] FIG. 5 is a cross sectional view of a portion of the
adjustment device of the present invention;
[0016] FIG. 5a shows a wrench is used to clamp the two flat faces
of the eccentric sleeve;
[0017] FIG. 6 shows an end cross sectional view of the eccentric
sleeve, the adjustment member and the second shaft in the second
hole of the frame;
[0018] FIG. 7 shows that the grinding roller is tilt relative to
the feeding platform, and
[0019] FIG. 8 shows that the grinding roller is adjusted and
parallel to the feeding platform.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
[0020] Referring to FIGS. 2 to 6, the adjustment device for a
grinding machine of the present invention comprises a base 10 and a
U-shaped frame 20 is located on the top of the base 10. The
U-shaped frame 20 has a first extension 21 and a second extension
210. Each of the first and second extensions 21, 210 has a first
hole 51 and a second hole 52, and each of the second holes 52 is a
non-circular hole. In this embodiment, each of the second holes 52
is an oval hole. Two tubular members are connected to the top of
the base 10, and the first and second extensions 210 are mounted to
two respective outsides of the two tubular members. A feeding
platform 30 is located on the base 10. A grinding roller 40 is
transversely connected to the frame 20 so that an object is put on
the feeding platform 20 and positioned to a desired position where
the grinding roller 40 grinds the object.
[0021] An adjustment device 50 is connected to the frame 20 and has
a first shaft 53 and a second shaft 54. The first shaft has a
fixing end 531 and an operation end 532. The fixing end 531 of the
first shaft 53 extends through the tubular member and the first
hole 51 of the second extension 210. The operation end 532 of the
first shaft 53 extends through the other tubular member and the
first hole 51 of the first extension 21. A first urging member 533
is connected to the operation end 532 extending beyond the first
hole 52 of the first extension 21.
[0022] The second shaft 54 has an elongate body 541 which has a
restriction end 544 and a connection end 545. The connection end
545 extends through the second hole 52 of the second extension 210,
the two tubular members and the second hole 52 of the first
extension 21. The restriction end 544 is sized larger than the
second hole 52 of the second extension 210 so that the second shaft
54 does not drop from the second hole 52 of the second extension
210. The fixing end 531 of the first shaft 53 may have a larger end
to prevent it from dropping from the second hole 52 of the second
extension 210. The connection end 545 of the second shaft 54
extends beyond the second hole 52 of the first extension 21.
[0023] An eccentric sleeve 542 is located in the second hole 52 of
the first extension 21 and has a first eccentric hole 5421 defined
axially therethrough. The eccentric sleeve 542 has two flat faces
5423 defined in the outside thereof. An adjustment member 543 has a
second eccentric hole 5431 defined axially therethrough. The
eccentric sleeve 542 securely extends through the second eccentric
hole 5431 of the adjustment member 543. The eccentric sleeve 542
has a radial hole 5422 which communicates with the first eccentric
hole 5421. A bolt 55 threadedly extends through the radial hole
5422 and contacts against the elongate body 541. The adjustment
member 543 is engaged with the second hole 52 of the first
extension 21. The connection end 545 of the second shaft 54 has
outer threads 547 which are threadedly connected to a second urging
member 546. The adjustment member 543 has a lever 5432 extending
therefrom.
[0024] As shown in FIG. 7, after the grinding machine is assembled,
the grinding roller 40 is not parallel to the feeding platform 30
because of the accumulated tolerances. The assembler loosens the
bolt 55 and the first urging member 533, and uses a wrench to clamp
the two flat faces 5423 of the eccentric sleeve 542 as shown in
FIG. 5a. The eccentric sleeve 542 is rotated relative to the
elongate body 541 and drives the adjustment member 543 and the
second hole 52 of the first extension 21 of the U-shaped frame 20,
so that the U-shaped frame 20 is pivoted about the first shaft 53.
Therefore, the grinding roller 40 is adjusted relative to the
feeding platform 30 to be parallel to the feeding platform 30 as
shown in FIG. 8. The bolt 55 is then tightened again, and a scale
device is connected to the adjustment member 543 which is set at a
desired position according to the scale device. The customers or
users can also rotate the eccentric sleeve 542 to initialize the
position of the grinding roller 40, and by operating the first and
second urging members 533, 546 to set the desired position and
height of the grinding roller 40.
[0025] When the users wants to adjust the grinding roller 40 after
a period of time of use, the first and second urging members 533,
546 are loosened, and the adjustment member 543 is rotated by
operating the lever 5432 to rotate the adjustment member 543
relative to the eccentric sleeve 542, in the meanwhile, the
eccentric sleeve 542 does not rotate. The adjustment member 543
drives the second hole 52 of the first extension 21 and the
U-shaped frame 20 is pivoted about the first shaft 53 so as to
adjust the grinding roller 40 to be parallel to the feeding
platform 30 as shown in FIG. 8 again.
[0026] It is noted that the restriction end 544 is sized larger
than the second hole 52 of the second extension 210 so that the
second shaft 54 does not drop from the second hole 52 of the second
extension 210. The fixing end 531 of the first shaft 53 has a large
end to prevent it from dropping from the second hole 52 of the
second extension 210. As shown in FIG. 3, the fixing board 57 is
connected between the fixing end 531 of the first shaft 53 and the
restriction end 544 of the second shaft 54 so as to securely
position the first and second shaft 53, 54 to the U-shaped frame
20, such that one end of the grinding roller 40 can be
adjusted.
[0027] While we have shown and described the embodiment in
accordance with the present invention, it should be clear to those
skilled in the art that further embodiments may be made without
departing from the scope of the present invention.
* * * * *