U.S. patent application number 09/796539 was filed with the patent office on 2001-09-20 for electronically controlled sample warper, rotary creel assembly, and warping method.
This patent application is currently assigned to SUZUKI WARPER LTD. Invention is credited to Aihara, Takatsugu, Tanaka, Yoshihiro.
Application Number | 20010022015 09/796539 |
Document ID | / |
Family ID | 18594415 |
Filed Date | 2001-09-20 |
United States Patent
Application |
20010022015 |
Kind Code |
A1 |
Tanaka, Yoshihiro ; et
al. |
September 20, 2001 |
Electronically controlled sample warper, rotary creel assembly, and
warping method
Abstract
An electronically controlled sample warper having a yarn
exchanging mechanism is provided which comprises a rotary creel
supporting a plurality of bobbins around which different kinds
and/or the same kind of yarns are wound and a bobbin station
supporting a plurality of bobbins on which different kinds and/or
the same kind of yarns are wound in a standby state. With this
construction, it is possible to employ various kinds of yarns and
perform yarn exchanging thereof unlimitedly, thus enabling various
pattern warping to be freely performed with the reduced warping
time.
Inventors: |
Tanaka, Yoshihiro;
(Kiryu-shi, JP) ; Aihara, Takatsugu; (Kiryu-shi,
JP) |
Correspondence
Address: |
ARENT FOX KINTNER PLOTKIN & KAHN, PLLC
Suite 600
1050 Connecticut Avenue, N.W.
Washington
DC
20036-5339
US
|
Assignee: |
SUZUKI WARPER LTD
|
Family ID: |
18594415 |
Appl. No.: |
09/796539 |
Filed: |
March 2, 2001 |
Current U.S.
Class: |
28/190 |
Current CPC
Class: |
D02H 3/04 20130101 |
Class at
Publication: |
28/190 |
International
Class: |
D02H 003/00 |
Foreign Application Data
Date |
Code |
Application Number |
Mar 17, 2000 |
JP |
2000-076720 |
Claims
What is claimed is:
1. An electronically controlled sample warper comprising: a warper
drum; a plurality of yarn introduction means each mounted to a side
surface of said warper drum for winding a yarn on said warper drum;
a plurality of yarn selection guides arranged in one end portion of
a base for supporting said warper drum in correspondence to said
yarn introduction means, each said yarn selection guide being
pivotally moved to protrude to a yarn exchanging position when a
yarn is exchanged and pivotally moved to retract to a standby
position when a yarn is stored; a rotary creel supporting a
plurality of bobbins around which different kinds and/or the same
kind of yarns are wound, said rotary creel being positioned
adjacent corresponding ones of said plurality of yarn selection
guides ;and a bobbin station supporting a plurality of bobbins
around which different kinds and/or the same kind of yarns are
wound in a standby state, wherein yarns are passed between said
yarn introduction means and said yarn selection guides as well as
said bobbins are passed between said rotary creel and said bobbin
station such that said bobbin for a yarn held by said yarn
introduction means and wound on said warper drum is supported on
said rotary creel while said bobbin for a yarn stored in said yarn
selection guide is supported by said bobbin station in a standby
state, so that said yarns are exchanged according to the preset
yarn order to be wound on said warper drum.
2. An electronically controlled sample warper of the present
invention comprising: a warper drum; a plurality of yarn
introduction means each mounted to a side surface of said warper
drum for winding a yarn on said warper drum; a plurality of yarn
selection guides arranged in one end portion of a base for
supporting said warper drum in correspondence to said yarn
introduction means, each said yarn selection guide being pivotally
moved to protrude to a yarn exchanging position when a yarn is
exchanged and pivotally moved to retract to a standby position when
a yarn is stored; and a rotary creel supporting a plurality of
bobbins around which different kinds and/or the same kind of yarns
are wound, said rotary creel being positioned adjacent
corresponding ones of said plurality of yarn selection guides,
wherein yarns are passed between said yarn introduction means and
said yarn selection guides, so that said yarns are exchanged
according to the preset yarn order to be wound on said warper
drum.
3. A rotary creel assembly comprising: a rotary creel supporting a
plurality of bobbins around which different kinds and/or the same
kind of yarns are wound, said rotary creel being positioned
adjacent corresponding ones of said plurality of yarn selection
guides; and a bobbin station supporting a plurality of bobbins
around which different kinds and/or the same kind of yarns are
wound in a standby state.
4. A warping method using an electronically controlled sample
warper having: a warper drum; a plurality of yarn introduction
means each mounted to a side surface of said warper drum for
winding a yarn on said warper drum; a rotary creel supporting a
plurality of bobbins around which different kinds and/or the same
kind of yarns are wound, said rotary creel being positioned
adjacent corresponding ones of said plurality of yarn selection
guides; and a bobbin station supporting a plurality of bobbins on
which different kinds and/or the same kind of yarns are wound in a
standby state, wherein said bobbins are passed between said rotary
creel and said bobbin station such that said bobbin for a yarn held
by the yarn introduction means and wound on said warper drum is
supported on said rotary creel while said bobbin for a yarn stored
in said yarn selection guide is supported by said bobbin station in
a standby state, so that said yarns are exchanged according to the
preset yarn order to be wound on said warper drum.
Description
BACKGROUND OF THE INVENTION
[0001] 1. Field of the Invention
[0002] The present invention relates to a novel electronically
controlled sample warper, wherein a rotary creel supporting
detachably a plurality of bobbins around which different kinds
and/or the same kind of yarns are wound and a bobbin station
supporting detachably a plurality of bobbins in a standby state are
used, and various kinds of yarns are exchanged according to the
preset pattern data (yarn order), so that more kinds of yarns than
the conventional ones can be wound on a warper drum, a rotary creel
assembly used in the electronically controlled sample warper, and a
novel warping method using the rotary creel assembly.
[0003] 2. Description of the Related Art
[0004] As an electronically controlled sample warper which has been
used conventionally, there is known a structure as disclosed, for
example, in Japanese Patent No. 1529104, where using a fixed creel
supporting a plurality of bobbins around which different kinds
(different colors or different twists) and/or the same kind of
yarns are wound, the yarns are wound on a warper drum with a yarn
introduction means while the yarn exchanging is performed by yarn
selection guides according to the preset pattern data (yarn
order).
[0005] Also, there has been known an electronically controlled
sample warper which can warp a plurality of yarns concurrently,
wherein time loss required for the yarn exchanging is cancelled and
a plurality of yarns can concurrently be wound on a warper drum by
using a rotary creel as well as omitting the yarn exchanging step,
and further a period of time required for the warping work can be
reduced (see Japanese Patent No. 1767706, U.S. Pat. No. 4,972,662,
and EP No. 0375480).
[0006] Since the fixed creel has a plurality of bobbins around
which different kinds and/or the same kind of yarns (mainly
different kinds of yarns) are wound and it is used for warping the
yarns one by one, it is advantageously possible to perform pattern
warping, but the yarns are wound on a warper drum one by one, so it
takes disadvantageously much time to perform warping work
correspondingly. Meanwhile, the rotary creel has a plurality of
bobbins around which the same kind and/or different kinds of yarns
are wound, and it is used for the plain warping (for example, only
red color yarns), and the limited pattern warping, such as one to
one warping (for example, repetition of a yarn of red color and a
yarn of white color, or repetition of a yarn of S twist and a yarn
of Z twist), two to two warping (for example, repetition of two
yarns of red color and two yarns of white color, or repetition of
two yarns of S twist and two yarns of Z twist). With the rotary
creel, it is disadvantageously impossible to perform pattern
warping other than the limited pattern warping, but it is
advantageously possible to wind a plurality of yarns concurrently
on the warper drum so that the warping time is reduced largely.
SUMMARY OF THE INVENTION
[0007] With the foregoing drawbacks of the prior art in view, it is
an object of the present invention to provide an electronically
controlled sample warper, a rotary creel assembly, and a warping
method wherein, using a rotary creel, it is possible to freely
perform the yarn exchanging of various yarns, thereby various
pattern warping and reduction of the warping time being
realized.
[0008] To attain the foregoing object, the first aspect of an
electronically controlled sample warper of the present invention
comprises: a warper drum; a plurality of yarn introduction means
each mounted to a side surface of the warper drum for winding a
yarn on the warper drum; a plurality of yarn selection guides
arranged in one end portion of a base for supporting the warper
drum in correspondence to the yarn introduction means, each the
yarn selection guide being pivotally moved to protrude to a yarn
exchanging position when a yarn is exchanged and pivotally moved to
retract to a standby position when a yarn is stored; a rotary creel
supporting a plurality of bobbins around which different kinds
and/or the same kind of yarns are wound, the rotary creel being
positioned adjacent corresponding ones of the plurality of yarn
selection guides; and a bobbin station supporting a plurality of
bobbins around which different kinds and/or the same kind of yarns
are wound in a standby state, wherein yarns are passed between the
yarn introduction means and the yarn selection guides as well as
the bobbins are passed between the rotary creel and the bobbin
station such that the bobbin for a yarn held by the yarn
introduction means and wound on the warper drum is supported on the
rotary creel while the bobbin for a yarn stored in the yarn
selection guide is supported by the bobbin station in a standby
state, so that the yarns are exchanged according to the preset yarn
order to be wound on the warper drum.
[0009] The second aspect of an electronically controlled sample
warper of the present invention comprises: a warper drum; a
plurality of yarn introduction means each mounted to a side surface
of the warper drum for winding a yarn on the warper drum; a
plurality of yarn selection guides arranged in one end portion of a
base for supporting the warper drum in correspondence to the yarn
introduction means, each the yarn selection guide being pivotally
moved to protrude to a yarn exchanging position when a yarn is
exchanged and pivotally moved to retract to a standby position when
a yarn is stored; and a rotary creel supporting a plurality of
bobbins around which different kinds and/or the same kind of yarns
are wound, the rotary creel being positioned adjacent corresponding
ones of the plurality of yarn selection guides, wherein yarns are
passed between the yarn introduction means and the yarn selection
guides, so that the yarns are exchanged according to the preset
yarn order to be wound on the warper drum.
[0010] A rotary creel assembly of the present invention comprises:
a rotary creel supporting a plurality of bobbins around which
different kinds and/or the same kind of yarns are wound, the rotary
creel being positioned adjacent corresponding ones of the plurality
of yarn selection guides; and a bobbin station supporting a
plurality of bobbins around which different kinds and/or the same
kind of yarns are wound in a standby state.
[0011] A warping method of the present invention, using an
electronically controlled sample warper having: a warper drum; a
plurality of yarn introduction means each mounted to a side surface
of a warper drum for winding a yarn on the warper drum; a rotary
creel supporting a plurality of bobbins around which different
kinds and/or the same kind of yarns are wound, the rotary creel
being positioned adjacent corresponding ones of the plurality of
yarn selection guides; and a bobbin station supporting a plurality
of bobbins around which different kinds and/or the same kind of
yarns are wound in a standby state, wherein the bobbins are passed
between the rotary creel and the bobbin station such that the
bobbin for a yarn held by the yarn introduction means and wound on
the warper drum is supported by the rotary creel while the bobbin
for a yarn stored in the yarn selection guide is supported by the
bobbin station in a standby state, so that the yarns are exchanged
according to the preset yarn order to be wound on the warper
drum.
BRIEF DESCRIPTION OF THE DRAWINGS
[0012] FIG. 1 is an entire explanatory view schematically showing
an embodiment of an electronically controlled sample warper
according to the present invention;
[0013] FIG. 2 is a partial explanatory view showing the manner in
which a yarn selection guide is arranged;
[0014] FIG. 3 is the first partial explanatory view showing a
movement of a yarn selection guide; and
[0015] FIG. 4 is the second partial explanatory view showing
another movement of a yarn selection guide.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
[0016] The present invention will hereinafter be described in
connection with embodiments with reference to the accompanying
drawings.
[0017] In FIG. 1, an electronically controlled sample warper W of
the present invention comprises: a warper drum A; a plurality of
yarn introduction means 6a to 6d (four in the illustrated
embodiment) each mounted to a side surface of the warper drum for
winding yarns 22a to 22e on the warper drum A; and a plurality of
yarn selection guides 27 arranged in one end portion of a base for
supporting the warper drum A in correspondence to the yarn
introduction means 6a to 6d, each the yarn selection guide 27 being
pivotally moved to protrude to a yarn exchanging position when the
yarns 22a to 22e are exchanged and pivotally moved to retract to a
standby position when the yarns 22a to 22e are stored, wherein
yarns 22a to 22e are passed between the yarn introduction means 6a
to 6d and the yarn selection guides 27, so that the yarns 22a to
22e are exchanged according to the preset yarn order to be wound on
the warper drum A. The basic structure and operation of the
electronically controlled sample warper W are well-known from the
above-mentioned patent publications, and detailed description
thereof will be omitted.
[0018] In the electronically controlled sample warper W of the
present invention, there are positioned adjacent corresponding ones
of the plurality of yarn selection guides 27 a rotary creel F
supporting a plurality of bobbins 100a to 100e (five in the
illustrated embodiment) around which different kinds and/or the
same kind of yarns 22a to 22e are wound, and a bobbin station 102
supporting a plurality of bobbins 100a to 100e around which
different kinds and/or the same kind of yarns are wound in a
standby state.
[0019] The characteristic structure of the present invention
resides in that the bobbins 100a to 100e can detachably be
supported by the rotary creel F and the bobbin station 102,
respectively, and the bobbins 100a to 100e can be passed freely
between the rotary creel F and the bobbin station 102.
[0020] In FIG. 1, reference numerals 104a to 104e
[0021] denote bobbin bodies, which are composed of bobbin frames
106a to 106e and the bobbins 100a to 100e attachable thereto,
thereby the attaching and detaching operation of the bobbins 100a
to 100e being easy. The basic structure of the rotary creel F is
not changed from a conventional one. However, the rotary creel F is
provided at its front portion with a plurality of bobbin receiving
recesses 108 (four in the illustrated embodiment), into which the
bobbin bodies 104a to 104e are detachably inserted.
[0022] It is enough for the above bobbin station 102 to retain the
plurality of bobbin bodies 104a to 104e detachably in a standby
state, and there are no need any specific constructions therefor.
In the embodiment shown in FIG. 1, however, a plurality of bobbin
receiving portions 112 (four in the illustrated embodiment) are
formed on two rail members 110, 110 opposing to each other, and the
bobbin bodies 104a to 104e are detachably set in the bobbin
receiving portions 112.
[0023] The bobbin station 102 (or the rail members 110,110 in the
illustrated embodiment) may be movable so that the bobbin bodies
104a to 104e are easily passed between the rotary creel F and the
bobbin receiving recesses 108. Also, it is preferable that the
bobbin bodies 104a to 104e are automatically passed by a known
robot hand or the like according to the preset pattern data (yarn
order).
[0024] As the above-mentioned yarn selection guides 27, such
conventional ones as shown in FIG. 2 can be used. In FIG. 2, the
plurality of yarn selection guides 27 selectively guide yarns 22a
to 22e according to the instructions from a program setting unit.
The yarn selection guides 27 are attached one to each rotary
solenoid 29. When the individual rotary solenoid 29 is energized,
the corresponding yarn selection guide 27 is pivotally moved to
advance to its operative position (yarn exchanging position) as
shown with a phantom line in FIG. 3; when the rotary solenoid 29 is
de-energized, the yarn selection guide 27 is reversely pivotally
moved to its standby position (yarn storing position) as shown with
a solid line in FIG. 3.
[0025] The movements of the yarn 22 during the yarn exchanging are
shown in FIGS. 3 and 4. The distal end of the yarn introduction
means 6 is inwardly bent to provide a yarn introduction part 6'
which is disposed against the front end of the outer periphery of
the warper drum. The yarn 22k caught by the selection guide 27
initially located in its standby position (yarn storing position)
assumes its yarn position 22l as the selection guide 27 is
pivotally moved to advance to its operative position(yarn
exchanging position) as shown with a phantom line. From this
position, the yarn 22l is caught by the yarn introduction part 6'
and wound around the warper drum A. The yarn selection guide 27
from which the yarn is removed is returned to the standby position
(yarn storing position). 22m designates the posture in which the
yarn 22 is moved one turn, and when the yarn is not exchanged the
yarn is wound around the warper drum A passing through an upper
side of a guide plate S as in this posture.
[0026] When the yarn 22m being caught by the yarn introduction part
6' and wound on the warper drum A is removed therefrom by a yarn
removing unit 32, the yarn 22m is pulled back to the direction of
the rotary creel by a pulling-back device (not shown) and guided to
a lower side of the guide plate S by a guide bar 59a, then assuming
its posture 22n. The yarn selection guide 27 is pivotally moved to
advance to its operative position to catch the removed yarn, and
returns to the standby position (yarn storing position) with
holding the yarn. The yarn in the standby position assumes its
posture 22p in FIG. 4.
[0027] In FIGS. 2 to 4, 16 designates a drum spoke of the warper
drum A; 17, a conveyor belt provided on the drum spoke 16; 59, a
yarn introduction cover arranged on one side of the warper drum A;
59a, a guide bar attached on the inner surface of a lower portion
of the yarn introduction cover 59; and E, a yarn fastener mounted
to a base Y.
[0028] The operation of the above-described electronically
controlled sample warper W will now be described.
[0029] Firstly, as shown in FIG. 1, the bobbin bodies 104a, 104b
are inserted into the bobbin receiving recesses 108, 108 of the
rotary creel F, and yarns 22a, 22b are wound around the warper drum
A by the yarn introduction means 6a, 6b. On the other hand, the
bobbin bodies 104c, 104d are set in the bobbin receiving portions
112, 112 of the bobbin station 102 in a standby state, and yarns
22c, 22d are out of operation.
[0030] Next, when winding of four yarns 22a to 22d is performed,
the bobbin bodies 104c, 104d are inserted into the remaining bobbin
receiving portions 108, 108 of the rotary creel F, and the yarn
selection guides 27 are operated so that the yarns 22c, 22d are
moved to advance to the yarn exchanging positions from the yarn
storing positions to be held by the yarn introduction means 6c and
6d, thereby the yarns being wound around the warper drum A.
[0031] When winding of the yarns 22a, 22b is out of operation, the
bobbin bodies 104a, 104b are detached from the bobbin receiving
recesses 108, 108, then the yarns 22a, 22b are removed from the
yarn introduction means 6a, 6b and caught by the yarn selection
guide 27 to be stored, and the bobbin bodies 104a, 104b are set to
the bobbin receiving portions 112, 112 of the bobbin station
102.
[0032] Furthermore, when winding of a new yarn 22e is performed,
the bobbin body 104e is mounted to an empty bobbin receiving recess
108 of the rotary creel F, and on the other hand the yarn selection
guide 27 is actuated to get the yarn introduction means 6a to catch
the yarn 22e so that the yarn 22e can be wound around the warper
drum.
[0033] Thus, it is easy to use larger number of the bobbins 100a to
100e (five in the illustrated embodiment) than the number of the
yarn introduction means 6a to 6d (four in the illustrated
embodiment) so that a wide variety of pattern warping may be
unlimitedly performed. Also, the reduction of the warping time may
be realized by concurrently winding a plurality of yarns on the
warper drum A.
[0034] In the above-mentioned embodiment, there is described the
case wherein four yarn introduction means 6a to 6d, four bobbin
receiving recesses 108 of the rotary creel F, four bobbin receiving
portions 112 of the bobbin station 102, and five bobbins 100a to
100e are used. It is possible, however, to employ eight to sixteen
or more of yarn introduction means 6, eight to sixteen or more of
bobbin receiving recesses 108 of the rotary creel F, eight to
twenty or more of the bobbin receiving portions 112 of the bobbin
station 102, and eight to forty or more of the bobbins so as to
perform ultimately a wide variety of pattern warping with various
kinds of yarns.
[0035] In the above embodiment, there is explained the case wherein
the yarn exchanging is performed by exchanging the bobbins of the
rotary creel F for the ones of the bobbin station 102. In the case
where there is no need to use the bobbins of the bobbin station
102, it is possible, as a matter of course, to warp only the yarns
wound around the bobbins supported by the rotary creel F. In this
case, the yarns wound around the bobbins supported by the rotary
creel are guided to the yarn introduction means 6a to 6d through
the yarn selection guides 27. Thus, such a manner as the yarn
selection guide 27 are applied to the rotary creel F is a novel
inventive idea which does not reside in any conventional
electronically controlled sample warpers. The structure where the
yarns are guided to the yarn introduction means 6a to 6d through
the yarn selection guides 27 may advantageously and largely save
time and labor in exchanging the bobbins and so on in comparison
with the conventional one where the yarns of bobbins are directly
guided to the yarn introduction means 6a to 6d. In this embodiment,
using one yarn introduction means with the rotary creel F being in
an inoperative state, there is no doubt that pattern warping may be
performed as in the aforementioned known fixed creel.
[0036] As described above, according to the electronically
controlled sample warper of the present invention, though using the
rotary creel, it is possible to employ various kinds of yarns and
perform the yarn exchanging thereof unlimitedly, thus enabling
various pattern warping to be freely performed with the reduced
warping time.
[0037] According to the rotary creel assembly of the present
invention, it is possible to warp yarns on the warper drum with a
plurality of bobbins supported by the rotary creel, set the
remaining bobbins which are not used for warping yarns in the
bobbin station in a standby state and perform the bobbin exchanging
between the rotary creel F and the bobbin station 102. Therefore,
the rotary creel assembly is used very preferably when performing
pattern warping with a number of yarns.
[0038] Also, according to the warping method of the present
invention, using the above-mentioned rotary creel assembly of the
present invention, it is possible to perform pattern warping with
various kinds of yarns and warp concurrently a plurality of yarns
with the reduced warping time.
[0039] Obviously, various minor changes and modifications of the
present invention are possible in the light of the above teaching.
It is therefore to be understood that within the scope of appended
claims the invention may be practiced otherwise than as
specifically described.
* * * * *