JP4660950B2 - Yarn bundle manufacturing apparatus and method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a yarn bundle manufacturing apparatus and a yarn bundle manufacturing method for manufacturing a yarn bundle by converging the yarn into a long yarn bundle.
[0002]
[Prior art]
As a method for winding the yarn guided while reciprocating by the yarn guide portion as a substantially linear yarn bundle between a pair of parallel yarn holding bars and focusing the yarn bundle, JP-A-2000- 1264 publication. In this gazette, in a yarn bundle manufacturing apparatus having a winding guide in a yarn guide section, as a method of passing a yarn through a winding guide, a thread for passing the thread is passed through the winding guide in advance. A method of binding the yarn supplied from the yarn portion and the yarn for threading by hand or binding means, a method of passing the thread by winding guide threading means, and the like are described.
[0003]
For example, a suction gun is inserted into the winding guide from the exit side of the yarn, and after the yarn fed from the yarn feeding section to just before the winding guide by the yarn hooking means is sucked into the suction gun, the suction gun is wound A method of threading by pulling out from the guide is described. By using these methods, it is possible to pass the yarn without removing the winding guide from the yarn bundle winding portion.
[0004]
Further, as a method for treating the waste yarn generated after passing through the yarn hooking guide and after starting winding, a method of pulling the waste yarn with a suction gun used for yarn hooking is generally employed.
[0005]
Moreover, as a method of separating the yarn bundle and the waste yarn, a method of manually performing a cutting process is generally employed.
[0006]
[Problems to be solved by the invention]
However, in the method of manufacturing a yarn bundle as described above, there is the following problem in order to stably focus the yarn into a long yarn bundle.
[0007]
That is, in the method of passing the yarn through the winding guide, both the method of binding and the method of sucking the yarn by the suction gun have a problem that a large amount of waste yarn is generated while the yarn is passed.
[0008]
In addition, the bundling method has a problem that the knot shape accumulates in front of the cylindrical winding guide and becomes entangled.
[0009]
In addition, in the waste yarn treatment after thread passing and the winding start method, the method of continuously pulling multiple yarns with a suction gun makes the winding tension between the yarns unstable and winds between the yarn holding bars. There was a problem that the yarn bundle was easily damaged, skewed and meandered, and the quality of the yarn bundle was liable to deteriorate.
[0010]
Further, in the method of separating the yarn and the waste yarn, there is a problem that the method of manually cutting the yarn in the vicinity of the yarn bundle holding bar during the reciprocating motion of the winding guide is not preferable for safety.
[0011]
In view of the above problems, in the production of a long yarn bundle, the present invention makes it easy and reliable to thread the winding guide during threading, minimizes the generation of waste yarns, The purpose of the present invention is to obtain a high-quality yarn bundle that is wound with a stable tension from the initial winding after threading between the yarn holding bars and that is not damaged or skewed or meandered. That is, an object of the present invention is to provide a yarn bundle manufacturing apparatus and method capable of manufacturing a high-quality yarn bundle with high productivity.
[0012]
[Means for Solving the Problems]
In order to achieve the above object, the yarn bundle manufacturing apparatus and method of the present invention employ the following configuration. That is,
(1) In a yarn bundle manufacturing apparatus for winding a yarn bundle as a substantially straight yarn bundle between a plurality of yarn holding bars arranged in parallel by a yarn guide portion, the yarn guide portion is provided with the yarn bundle. An apparatus for producing a yarn bundle, characterized in that a detachable winding guide for winding the thread is provided and the yarn hooking member and the winding guide can be engaged with each other.
(2) The yarn bundle manufacturing apparatus according to (1), wherein the winding guide and the winding guide mounting portion are provided with positioning means that can be positioned with one touch at the time of mounting.
(3) (1) to (2), characterized in that a waste yarn processing section for processing waste yarn generated after threading and before starting winding is provided in the vicinity of the yarn holding bar on the winding start side. The yarn bundle manufacturing apparatus according to any one of the above.
(4) The waste yarn processing portion includes a waste yarn take-up portion, a yarn grip portion for holding the yarn and interrupting the take-up of the waste yarn, and the yarn bundle wound between the yarn and the yarn holding bar. The yarn bundle manufacturing apparatus according to any one of (1) to (3), further comprising a yarn cutting portion for cutting the yarn bundle.
(5) In the method of manufacturing a yarn bundle that is wound as a substantially straight yarn bundle between a plurality of yarn holding bars in parallel with each other by the yarn guide portion, the yarn bundle is provided on the yarn guide portion. A thread characterized by allowing a thread to pass through the winding guide by detaching the detachable winding guide for winding the thread from the winding guide mounting portion and threading the winding guide in a state of engaging the threading member. A method of manufacturing the bundle.
(6) After threading, scrap yarn generated before winding starts is picked up, and the winding is started by gripping the yarn just before starting winding between the yarn holding bars, and further, the yarn and the yarn. The method for producing a yarn bundle according to (5), wherein the yarn bundle is cut in the vicinity of the yarn holding bar in order to separate the yarn bundle wound between the holding bars. It is.
[0013]
According to the yarn bundle manufacturing apparatus and the manufacturing method of the present invention, at the initial yarn hooking time, the winding guide is removed from the yarn guide portion, and the yarn winding guide is hooked to the yarn hooking member. Since the threading operation to the winding guide is reliable and easy, the threading time can be shortened, the waste yarn generated during the threading operation can be reduced, and the productivity is improved.
[0014]
Moreover, the waste yarn generated before the start of winding after threading is taken up by the waste yarn take-up portion, so that the waste yarn can be reliably treated.
[0015]
Furthermore, the tension taken up by the yarn holding bar is affected by the take-up tension of the waste yarn take-up section by holding the yarn and starting winding immediately before starting the winding between the yarn holding bars. In addition, it is possible to wind with a desired winding tension from the initial winding after threading, and a high-quality yarn-like bundle can be obtained.
[0016]
In addition, as a method of cutting the yarn bundle and waste yarn, the yarn is cut in the vicinity of the yarn bundle holding bar, so that the yarn can be continuously and stably wound around the yarn holding bar. , Improve productivity.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the yarn bundle manufacturing apparatus of the present invention will be described with reference to the drawings.
FIG. 1 is a front view showing one embodiment of a yarn bundle manufacturing apparatus according to the present invention.
FIG. 2 is a plan view of the apparatus shown in FIG.
FIG. 3 is a front view and a side view of the winding guide mounting portion according to the present invention.
FIG. 4 is a front view showing a manner in which the winding guide according to the present invention is attached to the yarn hooking member.
FIG. 5 is an explanatory view of a threading method through a winding guide according to the present invention.
FIG. 6 is an explanatory view of the operation of the waste yarn processing section according to the present invention.
[0018]
In this embodiment, as shown in FIGS. 1 and 2, the winding guide 2 of the yarn guide 100 that guides the yarn 1 is moved from the winding start point A on the winding track K onto the winding track K. By turning, the yarn 1 is wound between the pair of yarn holding bars 3a and 3b of the converging portion 200, and a substantially linear yarn bundle 4 is formed.
[0019]
The yarn guide unit 100 includes a winding guide 2, a winding guide mounting unit 30 on which the winding guide 2 is mounted, and a guide roller 5. At the time of threading, the winding guide 2 is removed from the winding guide mounting portion 30 (FIG. 3), and the yarn is fed from the yarn feeding portion in a state where it is engaged with the outer cylinder portion of the suction gun 6 which is a member for threading as shown in FIG. After threading up to the strip guide part 100, the tubular winding guide 2 is removed from the suction gun 6 and attached to the winding guide mounting part 30 for threading.
[0020]
Here, although the shape of the winding guide 2 may be any shape, it is preferably a cylindrical shape, and more preferably a trumpet shape. By making it cylindrical, damage to the yarn 1 can be effectively prevented.
[0021]
The material of the winding guide is preferably a material that is excellent in wear resistance, low friction, and lightweight because the yarn 1 is slid and drawn or engaged with the suction gun 6 to perform the threading operation.
[0022]
The winding guide mounting portion 30 is divided into an upper holder 7a and a lower holder 7b as holders for storing the cylindrical winding guide 2, and the upper and lower holders 7a, 7b are opened and closed by a hanging bracket 8. ing. Further, a groove is provided in the outer tube portion of the winding guide 2 so that positioning can be performed with one touch at the time of mounting, and a convex portion for engaging the groove is provided in the winding guide mounting portion 30. It is preferable that the convex portion has a trapezoidal tip so that the groove of the winding guide can be easily engaged.
[0023]
The hanging bracket 8 is not particularly limited as long as the upper and lower holders 7a and 7b can be opened and closed, but preferably has a tightening force by a spring action so that the winding guide 2 does not come off due to vibration during winding.
[0024]
In addition, the waste yarn processing unit 300 holds the yarn 1 between the winding guide 2 and the waste yarn take-up unit 40 just before starting winding, and the yarn 1 between the winding guide 2 and the waste yarn take-up unit 40 just before starting winding. It comprises a yarn gripping portion 50 for interrupting the take-up processing of the yarn 1, and a yarn cutting portion 60 for separating the yarn bundle 4 and the waste yarn 9 wound between the yarn holding bars 3a and 3b. The waste yarn processing unit 300 is preferably disposed as close to the yarn holding bar 3a as possible so that threading is easy. The waste yarn collecting unit 40 is arranged at the end of the waste yarn processing unit 300, and the take-up roller 10 and the take-off roller. 10 includes a nip roller 11 that nips the yarn 1, a drive shaft 12 that rotates the take-up roller 10, a drive motor 13, and a guide 14. Here, it is preferable that the take-up roller 10 is a mirror surface that has a high friction coefficient on the roller surface and is less likely to slip. Furthermore, it is more preferable to perform surface treatment such as chrome plating which is excellent in wear resistance.
[0025]
The nip roller 11 may be made of any material as long as it has a high frictional force, but is preferably a rubber-based material such as urethane rubber or NBR.
[0026]
For example, a servo motor, an induction motor, a torque motor, or the like can be used as the drive motor 13, but a torque drive motor is preferable. By using a torque drive motor, it is possible to freely adjust the winding tension and speed, and when the thread 1 is gripped by the thread-like gripping part 50 and the take-up is interrupted during take-up of the waste thread 9, the take-up is taken up. A constant tension can be maintained on the roller 10 and the yarn 1.
[0027]
The yarn gripping portion 50 is disposed in front of the waste yarn catching portion 40, and includes a yarn gripping chuck 15 that grips the yarn 1 and a linear motion machine 16 that reciprocates the yarn gripping chuck. The claw shape of the yarn gripping chuck 15 is not particularly limited as long as it is a shape and material that can grip the running yarn 1, but a rubber material having a high friction coefficient is used so that slipping does not occur when gripping. Is preferred.
[0028]
As the linear motion machine 16 that reciprocates the yarn gripping chuck 15, a linear motion actuator that converts the rotation of the air cylinder and the motor into a linear reciprocating motion using a belt, a ball screw, or the like can be used. Of these, an air cylinder with a simple mechanism is preferable.
[0029]
The yarn cutting unit 60 includes a cutter 17 that cuts the yarn 1 and the linear motion machine 16. The thread-shaped cutting part 60 is preferably disposed as close to the thread-shaped holding bar 3a as possible within a range that does not hinder the winding guide 2 from turning the winding track K.
[0030]
The cutter 17 is not particularly limited as long as it can cut the yarn 1 such as a cutter knife, an air knife, or a heat cutter, but it is preferable to use a heat cutter that is easy to automate and maintain and has high reliability. The cutter 17 is preferably arranged as close to the yarn holding bar 3a as possible.
[0031]
Next, a method for threading the winding guide 2 will be described in detail with reference to FIGS. First, the hanging metal fitting 8 of the winding guide mounting part 30 is removed, the upper holder 7a is opened upward, and the winding guide 2 is removed (FIGS. 3 and 5a). Next, the winding guide 2 is engaged with the outer cylinder portion of the suction gun 6 of the yarn hooking means (FIG. 5b). Next, while the suction gun 6 is sucked by the suction device 80, the yarn 1 fed from the feed roller 70 of the yarn feeding section 400 is sucked by the suction gun 6 (FIG. 5c). Next, each roller is threaded with the suction gun 6 engaged with the winding guide 2 of the yarn supplying section 400 (FIG. 5d). Next, threading is performed on the guide roller 5 of the yarn guide portion 100 (FIG. 5e). Next, the winding guide 2 is mounted on the lower holder 7a of the winding guide mounting portion 30, and the hanging bracket 8 is closed. Next, the suction gun 6 is removed from the winding guide 2 (FIGS. 3 and 5f). Through the series of operations described above, threading to the winding guide 2 and threading to the yarn bundle manufacturing apparatus are completed.
[0032]
Next, operation | movement of the waste thread processing part 300 is demonstrated using FIG. First, after the drive shaft 12 of the take-up roller 10 is rotated, the yarn 1 is deposited between the take-up roller 10 and the nip roller 11 by the suction gun 6 of the yarn hooking means. Next, the yarn 1 between the suction gun 6 and the take-up roller 10 is cut with scissors (not shown) (FIG. 6a). Next, after the yarn gripping chuck 15 is advanced by the linear motion machine 16 of the yarn gripping portion 50, the yarn gripping chuck 15 is closed and the yarn 1 is gripped. Immediately thereafter, the winding guide 2 starts winding between the yarn holding bars 3a and 3b. Further, by holding the yarn 1 with the yarn holding chuck 15, a constant tension is applied to the yarn 1 between the yarn holding chuck 15 and the take-up roller 10, and the take-up roller 10 stops (FIG. 6b). Next, the winding guide 2 winds the yarn 1 5-15 times between the yarn holding bars 3 a, 3 b, and then advances the cutter 7 with the linear motion machine 18, and the yarn between the yarn holding bar 3 a and the guide 14. 1 is cut (FIG. 6c). Next, the yarn gripping chuck 15 is opened, and the held yarn 1 is released. The take-up roller 10 rotates when the tension of the yarn 1 is released, and takes up the waste yarn 9. The yarn gripping chuck 15 and the cutter 17 are moved backward using the linear motion machines 16 and 18 (FIG. 6d).
[0033]
[Example 1]
Four hollow fibers for a hollow fiber filtration membrane separator are used, the interval between the yarn holding bars is 2830 mm, the yarn converging width is 40 mm, the feeding width direction feed pitch is 5 mm, the yarn holding bar is wound 46 times, and the winding speed is 60 m / min. A yarn bundle was manufactured using the apparatus shown in FIGS. 1 and 2 under the condition of winding tension of 3 to 4 g / single yarn at the time of focusing.
[0034]
Here, the winding guide has a trumpet shape, and the inner diameter of the cylinder with which the suction gun is engaged is Φ30 mm. The material used was a fluororesin (PTFE type). In addition, the hanging metal fitting of the winding guide mounting part is an earthquake-resistant catch fastener. The distance between the winding start points of the waste thread take-up roller and the winding guide was 800 mm, and the surface of the take-up roller had a chrome-plated mirror finish. In addition, a torque motor was used as the drive motor, and the rotational torque was set so that the maximum tension of the take-up roll was 8 g / single yarn. The distance between the yarn gripping bar and the cutter was 300 mm, and a heat cutter was used as the cutter. The claw of the thread-shaped gripping chuck was made of stainless steel, and rubber was baked on the gripping part.
[0035]
As a result, the time required for starting winding after threading from the feed roll to the take-up roll of the yarn supplying section was within 1 minute 30 seconds. That is, the waste yarn generated by threading was within 90 m.
[0036]
Further, when the tension of the yarn wound between the yarn holding bars immediately after threading was measured, it was 3 to 4 g / single yarn. The wound yarn bundle was free from skewing and yarn disturbance, was free of single yarn crushing and surface layer flaws, and had good yarn quality.
[0037]
【The invention's effect】
In the yarn bundle manufacturing apparatus and the manufacturing method of the present invention, at the time of initial yarn hooking, the winding guide is removed from the yarn guide portion, and the yarn winding guide is engaged with the yarn hooking member. The threading operation to the winding guide is surely and easily performed. As a result, the threading time can be shortened, the waste thread generated during the threading operation can be reduced, and the productivity is improved.
[0038]
In addition, since the waste yarn generated before threading is picked up by the waste yarn take-up section after winding, reliable waste yarn processing becomes possible and immediately before starting winding between the yarn holding bars. By holding the yarn and starting winding, the tension taken up by the yarn holding bar is not affected by the waste yarn take-up tension, and the initial take-up after winding is wound at the desired winding tension. And a high-quality thread bundle is obtained.
[0039]
Also, as a method of cutting the yarn bundle and waste yarn, the yarn is cut in the vicinity of the yarn bundle holding bar, so that the yarn can be continuously and stably wound around the yarn holding bar. , Productivity can be improved.
[Brief description of the drawings]
FIG. 1 is a front view showing an embodiment of a yarn bundle manufacturing apparatus according to the present invention.
FIG. 2 is a plan view of the apparatus shown in FIG.
FIGS. 3A and 3B are a front view and a side view of a winding guide mounting portion according to the present invention. FIGS.
FIG. 4 is a front view showing a manner in which the winding guide according to the present invention is attached to the thread hooking means.
FIG. 5 is an explanatory diagram of a thread passing method through a winding guide according to the present invention.
FIG. 6 is an operation explanatory diagram of a waste yarn processing unit according to the present invention.
[Explanation of symbols]
1: Yarn 2: Winding guide 3a: Yarn bundle holding bar 3b: Yarn bundle holding bar 4: Yarn bundle bundle 5: Guide roller 6: Suction gun 7a: Upper holder 7b: Lower holder 8: Hanging bracket 9: Waste yarn 10: Take-up Roller 11: Nip roller 12: Drive shaft 13: Drive motor 14: Guide 15: Yarn gripping chuck 16: Linear motion machine 17: Cutter 18: Linear motion machine 30: Winding guide mounting part 40: Waste thread take-up part 50: Yarn gripping part 60 : Yarn cutting unit 70: Feed roller 80: Suction device 100: Yarn guide unit 200: Converging unit 300: Waste yarn processing unit 400: Yarn feeding unit A: Winding start point K: Winding guide track

Claims (6)

In a yarn bundle manufacturing apparatus for winding a yarn bundle as a substantially straight yarn bundle between a plurality of yarn holding bars arranged in parallel by a yarn guide portion, detachment of winding the yarn bundle around the yarn guide portion An apparatus for producing a yarn bundle, characterized in that a possible winding guide is provided, and the yarn hooking member and the winding guide can be engaged with each other. 2. The yarn bundle manufacturing apparatus according to claim 1, wherein the winding guide and the winding guide mounting portion are provided with positioning means capable of positioning with one touch at the time of mounting. The waste thread processing part which processes the waste thread generated after threading by the start of winding is provided in the vicinity of the yarn holding bar on the winding start side. Yarn bundle manufacturing equipment. The waste yarn processing unit cuts the waste yarn take-up portion, the yarn gripping portion that holds the yarn and interrupts the take-up of the waste yarn, and the yarn bundle wound between the yarn and the yarn holding bar. An apparatus for producing a yarn bundle according to any one of claims 1 to 3, further comprising a yarn cutting portion for performing the operation. In the method of manufacturing a yarn bundle that is wound as a substantially linear yarn bundle between a plurality of yarn holding bars arranged in parallel by the yarn guide portion, the detachment of winding the yarn bundle around the yarn guide portion A yarn bundle characterized by allowing a yarn to pass through the winding guide by removing the possible winding guide from the winding guide mounting portion and threading the winding guide in a state of being engaged with the yarn hooking member. Production method. After threading, scrap yarn generated before winding starts is picked up, and immediately before starting winding between the yarn holding bars, the yarn is gripped to start winding, and further, between the yarn and the yarn holding bar. The method for manufacturing a yarn bundle according to claim 5, wherein the yarn bundle is cut in the vicinity of the yarn holding bar in order to separate the wound yarn bundle.

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