JP5935386B2 - Winding of synthetic fiber yarn - Google Patents

Description

  INDUSTRIAL APPLICABILITY The present invention is suitable for a process of winding a yarn, and in particular, in a synthetic fiber manufacturing process, a method for winding a synthetic fiber yarn that is wound at a high speed and requires a tail yarn, a winding package, and a synthetic fiber yarn This relates to a take-up paper tube. In detail, when winding the yarn around the thread winding paper tube, the tail bunch that becomes a discarded yarn wound in a rod shape is not wound around the outside of the yarn package, so that the removal work of the tail bunch is unnecessary and high. Synthetic fiber yarn winding method, winding package and synthetic fiber yarn capable of maintaining a yarn threading success rate and capable of forming a tail yarn (transfer tail) having an appropriate yarn length. This relates to a take-up paper tube.

  First, a winding machine using a thread-wound paper tube, a method for winding a yarn into a paper tube, and a tail bunch will be described with reference to FIGS.

  1 to 4 are schematic front views of the winder, and show transitions at the time of yarn switching. FIG. 5 is a view showing a package in which a conventional tail bunch winding is formed, and FIG. 7 is a view showing a conventional method of contacting a yarn with a paper tube.

  As shown in FIG. 1, the yarn 4 is traversed by a traverse guide 10 with a traverse fulcrum guide 12 as a fulcrum, and wound around a paper tube 1 mounted on a spindle driven by a surface pressure roller 13. It is like that. The paper tube 1 is provided with a groove-shaped thread gripping portion (hereinafter referred to as a blade) 8 in the circumferential direction in the vicinity of the tail portion outside the traversing region, and the thread 4 at the start of winding is gripped by the blade 8. After that, the traverse guide 10 is traversed and wound for regular winding. At a position corresponding to the blade 8 in the substantially vertical (vertical) direction of the blade 8 between the traversing fulcrum guide 12 and the traverse guide 10, a shift guide 7 for guiding the yarn to be wound around the blade 8 is traversed. It is installed to be movable in the swing direction. Further, a search guide 9 for removing the yarn from the traverse guide 10 is installed in a lower part of the paper tube at the top side of the blade 8 so as to be movable in the traverse direction.

  Further, as shown in FIG. 5, after the thread at the beginning of winding is held by the blade 8 to form the tail bunch winding 2, the tail yarn 3 is formed, and then the yarn winding package 11 is formed.

  Further, as shown in FIG. 7, when the paper tube 1 contacts the yarn 4, the yarn at the beginning of winding is guided to the vicinity of the blade 8 outside the traverse region by the shift guide 7, and the yarn 4 is guided to the empty paper tube. After the contact with 1, the search guide 9 searches for the yarn by passing through the blade 8 and blade-in.

  In the winding device described above, conventionally, the yarn is detached from the traverse guide 10 as shown in FIG. 2, and the yarn path is guided by the shift guide 7. After the yarn 4 comes into contact with the blank paper tube 1 as shown in FIG. 7, it passes through the blade 8 by the search of the search guide 9 and blades in as shown in FIG. Article 4 is cut downstream. At this time, since the shift guide 7 is in a position where the blade 8 grips the yarn 4, the yarn is wound around the blade 8 in a bar shape as shown in FIG. Thereafter, the tail 3 as shown in FIG. 5 is formed in association with the return operation of the shift guide 7 as shown in FIG. Next, a steady traverse operation is started as shown in FIG. The search guide 9 also returns to the standby position.

  As a result, the formed tail bunch 2 is removed in a later step, and there is a work burden of fixing the end of the tail bunch 2 with a tape while leaving the tail of an appropriate length. Further, when the tail bunch is cut and removed from the package with a blade. There was a problem that the paper tube was damaged by the blade, which made it difficult to reuse the paper tube. The operation is indispensable for the user to perform false twisting or weaving continuously. If neglected, there is a problem that thread breakage occurs.

  On the other hand, as a winding method in which such tail bunch is not formed, the yarn regulated by the yarn switching mechanism and the yarn path regulating mechanism is brought into contact with the peripheral surface of the empty paper tube and moved in the axial direction of the empty paper tube. A winding method in which the blade grips the yarn has been proposed (see Patent Document 1).

  However, in this method, the yarn path for introducing the yarn into the blade extending in the circumferential direction on the surface of the empty paper tube needs to be inclined with respect to the blade. Therefore, it is difficult to reliably hold the yarn, and it is difficult to maintain a high threading success rate for various varieties having different physical properties and thicknesses.

  Similarly, the yarns regulated by the yarn switching mechanism and the yarn path regulating mechanism are held in contact with the blade of the blank paper tube, and the yarn is likely to be wound vertically by releasing the regulation of the yarn switching mechanism. A method of winding using properties has been proposed (see Patent Document 2).

  However, in this method, since the yarn is brought into contact with the blade, the yarn is difficult to move from the blade, and there is a drawback in that the tail formability varies.

JP 2001-139229 A JP 2004-238127 A

  A first object of the present invention is to prevent a tail bunch, which is a waste thread wound in a rod shape, from being wound around the outside of a package when a yarn is wound around a thread winding paper tube, and to maintain a high threading success rate. Synthetic fiber yarn winding package, winding method and synthetic fiber yarn for the same, which can eliminate the need for tail bunch removal work in the subsequent process and can stabilize the winding process. It is intended to provide a take-up paper tube.

  A second object of the present invention is to provide a synthetic fiber yarn winding package, which can stably and easily form a tail yarn having an appropriate length suitable for tail yarn joining work according to the use situation, and winding A method and a synthetic fiber yarn take-up paper tube therefor are to be provided.

In order to solve such a problem, the synthetic fiber yarn winding method of the present invention is such that when the yarn is wound around the paper tube, the yarn is brought into contact between the tail portion of the paper tube and the blade, and then the yarn is wound. Has been wound up at a position where the distance B from the blade to the end of the rolled-up package reaches 5.0 mm to 8.0 mm. A synthetic fiber winding method characterized by the above.

  Further, in the synthetic fiber yarn winding paper tube of the present invention, the distance A between the tail end of the paper tube and the blade is 8.0 to 14.0 mm, and the surface layer between the tail portion of the paper tube and the blade is flat, The ratio of the total circumferential length L of the blade of the paper tube to the surface circumferential length M of the paper tube satisfies 0.30 ≦ L / M ≦ 0.80, and the blade shape is composed of at least an introduction portion and a gripping portion. Preferably, the paper tube has a thickness of 8.0 mm or more.

  According to the synthetic fiber yarn winding method, the winding package, and the synthetic fiber yarn winding paper tube of the present invention, when winding the yarn around the winding paper tube, the tail bunch is not wound, and a high threading success rate is achieved. The proper tail length can be stably and easily formed.

It is a schematic front view of a winder. It is a schematic front view of a winder. It is a schematic front view of a winder. It is a schematic front view of a winder. It is a conventional tail bunch formation view. It is a tail bunchless formation figure of the present invention. It is explanatory drawing of the contact method of the thread | yarn to the conventional paper tube. It is explanatory drawing of the contact method of the thread | yarn to the paper tube of this invention. 1 is an overall view of a paper tube of the present invention. It is a cross-sectional enlarged view of the blade tube vicinity of the paper tube of this invention. It is the expansion direction of the circumferential direction of the blade vicinity of the paper tube of this invention. FIG. 3 is a schematic view of the inside of the blade of the paper tube of the present invention.

  Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 to 4, 6, and 8 to 11. 1-4 is a transition at the time of switching of the schematic front view of the winder. FIG. 6 is a diagram showing a tail bunchless formation of the present invention, FIG. 8 is a method of contacting a yarn with the paper tube of the present invention, FIG. 9 is an overall view of the paper tube of the present invention, and FIG. FIG. 11 is a circumferential enlarged view of the vicinity of the blade of the paper tube of the present invention (X portion in FIG. 9). 1 to 4 are examples of one yarn, but in the present invention, even two or more yarns can be applied satisfactorily.

  First, a turret plate (not shown) rotates clockwise by 180 degrees, and the rolled-up package 11 on the winding side as shown in FIG. 1 moves to the standby side, and the empty paper tube 1 on the standby side moves to the winding side. Is done. At this time, the yarn 4 is detached from the traverse guide 10, and the yarn path is guided by the shift guide 7 as shown in FIG.

  Next, as shown in FIG. 3, the thread 4 is moved between the blade 8 of the empty paper tube 1 and the tail end 5 of the paper tube 1 by the search of the search guide 9, and in the state of FIG. To touch. Simultaneously with the contact of the yarn 4 with the empty paper tube 1, the search guide 9 comes off from the yarn 4, and the backward movement of the shift guide 7 starts as shown in FIG. 4, and the yarn 4 is attached to the paper tube of FIG. The yarn 4 is gripped by the blade 8 as it passes over one blade 8. When the yarn 4 is gripped by the blade 8, both the rolled-up package 11 and the empty paper tube 1 are rotated in the winding direction, so that the yarn is pulled between the rolled-up package 11 and the empty paper tube 1. The yarn is cut and the yarn is rolled up and switched from the package 11 to the empty paper tube 1.

  Immediately after this, the switched yarn 4 moves toward the traverse center while forming the tail yarn 3 as shown in FIG. 6 by the backward movement of the shift guide 7 as shown in FIG. 4, and is traversed as shown in FIG. Rolled up. The search guide 9 also returns to the standby position.

  In carrying out the present invention, it is particularly preferable to use a turret type automatic winding device, and more preferably to apply to high-speed winding. The speed of high-speed winding is preferably 3000 m / min or more.

  As shown in FIG. 8, the portion of the paper tube 1 with which the yarn 4 is brought into contact at the start of winding may be anywhere between the tail end 5 of the paper tube and the blade 8, but between the tail end 5 of the paper tube and the blade 8. Near the point is more preferable. The yarn 4 stays on the blade 8 by bringing the yarn 4 into contact between the tail end 5 of the paper tube and the blade 8 and allowing the blade 4 to pass through the blade 8 toward the center of the paper tube 1. Instead, normal winding can be started without forming the tail bunch 2 wound in a rod shape as shown in FIG.

  As shown in FIG. 10, the distance A between the tail end 5 of the paper tube and the blade 8 is preferably 8 to 14 mm, and more preferably 9 to 13 mm. At this time, the definition of the distance between the tail end 5 of the paper tube and the blade 8 is the distance from the tail end of the paper tube to the position corresponding to the deepest part of the blade. If the width of the groove of the blade is wide and the deepest part has a width, the intermediate point is set as the reference point. More preferably, the shape between the tail end 5 of the paper tube and the blade 8 is not curved in the axial direction. With this shape, when the yarn 4 comes into contact with the paper tube 1, it is possible to prevent the yarn from jumping out from the tail end 5 of the paper tube and to smoothly guide the yarn to the blade. Further, as shown in FIG. 10, a flat pressing process 6 may be applied to a portion where the yarn 4 contacts the paper tube 1 for the purpose of preventing the yarn from jumping out from the tail end 5 of the paper tube. The flat pressing process is a process in which a groove-shaped dent shape is applied. The flat pressing process 6 may have any shape, but preferably has a width of 3 to 7 mm and a depth of 0.2 to 0.7 mm, and a width of 5 mm and a depth of 0.5 mm. More preferably.

As shown in FIG. 10, it is preferable that the distance B to the blade and yarn take-up package end is 5.0 mm to 8.0 mm, more preferably if 7.0mm~ 8.0 mm. When this value is small, the tail length is generally insufficient, and the distance between the blade and the yarn winding package is short, and it is difficult to tail tie at the processing destination. At this time, the definition of the distance between the blade 8 of the paper tube and the yarn winding package portion 11 is the distance from the position corresponding to the deepest portion of the blade to the yarn winding package. If the width of the groove of the blade is wide and the deepest part has a width, the intermediate point is set as the reference point.

  The material of the paper tube is not particularly limited as long as it is manufactured using a paper tube base paper known as a general manufacturing method. Moreover, the kind about the adhesive agent currently used at the time of paper tube manufacture is not ask | required. The inner diameter and length of the paper tube may be any one that meets the standard of the winding device, and is not particularly defined.

  The means for gripping the yarn is preferably a paper tube provided with a slit groove-shaped blade for thread gripping extending in the circumferential direction on the surface of the tube end of the paper tube 1, and there is a process in which the yarn can be gripped. Any may be sufficient. Further, the depth and width of the blade are not particularly specified. The shape of the blade is preferably composed of at least the introduction part 14 and the gripping part 16, and is composed of the introduction part 14, the transition part 15, the gripping part 16, and the thread trimming part 17 as shown in FIG. The width of each part is 0.50 to 2.50 mm for the introduction part 14, 0.80 to 2.00 mm for the transition part 15, 0.10 to 2.00 mm for the grip part 16, and 0.03 to 0.03 for the thread trimming part 17. More preferably, it is 0.15 mm. Furthermore, it is more preferable that the blade has a jagged inner shape 18 like a saw blade as shown in FIG. The blade configured as shown in FIG. 11 can achieve tail bunchlessness, and the cutting point of the yarn at the time of switching is in the vicinity of the paper tube. Since the inner shape 18 of the blade is the same, the yarn introduced into the blade is firmly gripped without jumping out. The in-blade shape 18 is applied to the introduction portion 14, the transition portion 15, and the gripping portion 16, but is not applied to the thread trimming portion 17. Further, as shown in FIG. 11, the ratio of the blade length L to the surface circumference M of the paper tube is preferably 0.30 ≦ L / M ≦ 0.80, and 0.35 ≦ L / M ≦ 0. More preferably, it is 65. If the length of the blade is too short, the blade cannot be gripped well at the time of switching, and switching failure occurs. If the length of the blade is too long, the yarn tends to stay on the blade when the yarn is gripped, and a tail bunch is likely to be formed.

  The thickness of the paper tube is preferably 8.0 mm or more, and more preferably 9.0 mm or more and 11.0 mm or less. Increasing the thickness of the paper tube increases dimensional stability due to changes in the temperature and humidity environment, leading to improved recyclability.

  The present invention can be applied to synthetic fiber yarns such as polyester, polyamide, and acrylic. Moreover, it is not limited to the specific fineness and the number of filaments of the synthetic fiber yarn.

Hereinafter, the present invention will be described specifically by way of examples.
Each evaluation in Example Table 2 (Evaluation 1: Switching success rate, Evaluation 2: Tail formation, Evaluation 3: Tail bunchless) was performed as follows.
○: Good.
Δ: Almost good.
X: unsuitable.

Example 1
Polyethylene terephthalate was melt-spun and subjected to a process of winding 84 dtex and 36 filaments at a winding speed of 4000 m / min. For winding, 12 spindles made of Tanaka Paper Tube Co., Ltd., equipped with a thread gripping slit-shaped blade with a paper tube inner diameter of 140 mm and a paper tube length of 125 mm, are mounted on one spindle. Using the turret type winder manufactured by TMT Machinery Co., Ltd., the yarn was brought into contact with the paper tube in the state shown in FIG. Automatic yarn switching every time the yarn package weight per piece reaches 7.0 kg, (1) Successful switching rate by automatic yarn switching, (2) Formed around the blade of the package wound up to 7.0 kg The presence or absence of tail bunch winding was examined by confirming tail formability from the length of the transferred tail and (3) the number of windings of the yarn on the blade of the package wound up to 7.0 kg. The results are shown in Table 2.
Here, a thread whose number of windings on the blade is within 5 turns is defined as tail bunchless. Also, the length of the transfer tail was determined to be 50 cm or more because of the workability of tail thread joining.

  The conditions of the installed paper tube are as follows. The thickness of the paper tube is 9.0 mm, the distance between the paper tube tail end and the blade is A = 10.0 mm, the distance between the blade and the yarn winding package end is B = 8.0 mm, and the surface of the paper tube is the length L of the blade. The ratio L / M = 0.52 with respect to the circumferential length M, the blade shape is composed only of the introduction portion / gripping portion, and there is no flat pressing between the tail end of the paper tube and the blade.

Example 2
All were carried out in the same manner as in Example 1 except that there was a flat pressing process on the paper tube. The results are shown in Table 2.

Example 3
The same operation as in Example 1 was performed except that L / M = 0.35 of the paper tube. The results are shown in Table 2.

Example 4
The same operation as in Example 1 was performed except that L / M = 0.78 of the paper tube. The results are shown in Table 2.

Example 5
It was carried out in the same manner as in Example 1 except that the blade shape of the paper tube was composed of an introduction part, a transition part, a gripping part, and a thread trimming part. The results are shown in Table 2.

Example 6
The same procedure as in Example 1 was performed except that the distance A between the tail end of the paper tube and the blade was 13.0 mm, and the distance B between the blade and the wound-winding package end was 5.0 mm. The results are shown in Table 2.

Example 7
The same procedure as in Example 1 was performed except that the distance A between the tail end of the paper tube and the blade was 6.0 mm. The results are shown in Table 2.

Example 8
The same operation as in Example 1 was performed except that L / M of the paper tube was 0.92. The results are shown in Table 2.

Comparative Example 1
The same operation as in Example 1 was performed except that the distance A between the tail end of the paper tube and the blade was 15.0 mm, and the distance B between the blade and the end of the wound winding package was 3.0 mm. The results are shown in Table 2.

Comparative Example 2
All were carried out in the same manner as in Comparative Example 1 except that the thickness of the paper tube was 7.0 mm. The results are shown in Table 2.

Comparative Example 3
Example 1 was carried out in the same manner as in Example 1 except that the yarn was brought into contact with the paper tube in the state shown in FIG. The results are shown in Table 2.

1: Paper tube 2: Tail bunch winding 3: Tail yarn 4: Yarn 5: Paper tube tail end 6: Flat pressing 7: Shift guide 8: Blade 9: Exploration guide 10: Traverse guide 11: Yarn winding package 12 : Traverse fulcrum guide 13: Contact pressure roller 14: Blade (introduction part)
15: Blade (transition part)
16: Blade (gripping part)
17: Blade (thread trimming part)
18: Blade internal shape

Claims (3)

When winding the yarn around the paper tube, after the yarn is brought into contact between the tail portion of the paper tube and the blade, the yarn is passed through the blade to be gripped, and winding is started. A synthetic fiber yarn winding method, wherein the synthetic fiber yarn is wound at a position where the distance B to the end of the wound package satisfies 5.0 mm to 8.0 mm. The distance A between the tail end of the paper tube and the blade is 8.0 to 14.0 mm, and the ratio of the circumferential total length L of the paper tube blade to the surface circumferential length M of the paper tube satisfies the following equation (1). The synthetic fiber yarn winding method according to claim 1, wherein a synthetic fiber yarn winding paper tube is used , wherein the blade has at least an introduction portion and a gripping portion.
0.30 ≦ L / M ≦ 0.80 (1) The method for winding a synthetic fiber yarn according to claim 2 , wherein the thickness of the paper tube is 8.0 mm or more.

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