JP2000128429A - Winder for thread and manufacture of thread package - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate the shortening of the free length for the enlargement of a roller bail, to enhance the thread holding force, and to reduce the practical winding tensile force by providing a vane traverse device traversing the thread by rotating vanes in an opposed position to the roller bail across the thread passage. SOLUTION: A thread package 4 in winding is formed on a bobbin 10 mounted on a bobbin holder 2. A roller bail 5 is arranged in right above the package 4 and, with the winding of the package 4, it retreats upward while holding a prescribed positional relation with a vane traverse device 8. The vane traverse device 8 is arranged opposed to the roller bail 5 across a thread passage 11 and a plurality of rotating vanes 12, a pair of rotating vanes 12a arranged in the upper side and a pair of rotating vanes 12b arranged in the lower side, are provided. The rotation plane of the rotating vanes 12 is installed in the traveling thread 6 (thread passage 11), practically, in parallel to the vertical plane. The distance between a crossing of the upper side rotating vanes 12a with the thread 6, and a point of the thread in contact with the roller bail 5 becomes the free length F.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a yarn winding device and a method for manufacturing a yarn package, and more particularly to a yarn winding device capable of winding a yarn stably into a package having a desirable form even when winding the yarn at a high speed. The present invention relates to a yarn winding device that can be used and a method for manufacturing a yarn package using the device.

[0002]

2. Description of the Related Art In order to reduce running costs and improve productivity, a winding device for winding a synthetic bobbin is required to have a small diameter, a large number of hills, and a high speed. Various improvements and high performances have been promoted, for example, by improving the traverse means to improve the quality of the yarn and to improve the yarn quality.

[0003] In recent years, as a method of winding a yarn having difficulty in forming a package into a package having a good form, a roller bale (contact roll) is driven to rotate, and a tension at the time when the yarn is actually wound, that is, a so-called actual tension. A method of winding with a low winding tension is used.

[0004] In particular, recently, there has been an increasing demand for higher speed production, higher added value of yarn, and differentiation, and in order to satisfy these, the yarn gripping force of the roller bale is increased and the actual winding tension is reduced. The diameter of the roller bale tends to increase so that the roller bale can be further reduced or the rotation speed of the roller bale can be further reduced in response to an increase in speed.

When the diameter of the roller bale is increased, a traverse device provided upstream of the roller bale, for example, Japanese Patent Publication No. Sho 46-1
From the relationship with the blade traverse device as described in JP-A-6298 and JP-A-56-108049,
The distance from the traversing device to the point at which the yarn comes into contact with the roller bale, so-called free length, becomes longer.

The installation configuration of the conventional roller bale and blade traverse device is as shown in FIG. 9, for example.
9, reference numeral 101 denotes a bobbin holder; 102, a bobbin mounted thereon; 103, a package formed on the bobbin 102;
Wound as 3. A blade traverse device 107 having two sets of rotary blades 106a and 106b is provided upstream of the roller bale 104 in the yarn traveling direction, and the yarn 105 traveling at a predetermined traverse stroke is traversed. It is wound up. In such an apparatus, as the diameter of the roller bale 104 increases, the free length 108 increases. For example, in the triaxial blade traverse device described in Japanese Patent Publication No. 46-16298 and Japanese Utility Model Application Publication No. Sho 56-108049, the free length is about 37 mm when the diameter of the roller bale is 65 mm, whereas the roller bale is about 37 mm. When the diameter becomes 90 mm, the free length becomes
In order to avoid interference between the roller bale and the blade traversing device, the distance is increased to about 47 mm.

As a method for reducing the free length, there is known a method of inclining a blade traverse device as described in JP-A-59-194977. However, in this method, since the gear portion 109 provided in the blade traverse device approaches the yarn path side, in order to avoid interference between the gear portion 109 and the yarn path, for example, a traverse stroke of 120 mm and a rotation blade In the case of a traverse device having a length of 45 mm and a height of 83 mm of the gear portion 109, the inclination angle is limited to 10 degrees at most,
At that time, the free length is about 40 mm, and the shortening amount of the free length is very small. Here, the height of the gear portion 109 is, as shown in FIG. 9, a height 110 from the upper surface of the rotary blade to the uppermost surface of the gear for obtaining driving force, which is connected to the shaft.

If the free length is to be reduced to, for example, 34 mm while the configuration (height) of the gear portion of the traverse device is kept constant, the traverse device 111 is tilted to about 25 degrees as shown in FIG. And the length of the rotating blade 112 needs to be extended to 80 mm or more. However, if this is done, the device can only be implemented with a traverse stroke of 230 mm or more, so the traverse stroke must be changed. Further, since the device becomes large, it is difficult to form multiple yarns (simultaneous winding of multiple yarns).

Further, while keeping the traverse stroke and the length of the rotary blade constant, the free length is reduced to, for example, 3
When trying to reduce it to 4 mm, as shown in FIG.
The gear configuration of the traverse device 121 is changed by changing the gear configuration.
2, the height 123 needs to be 40 mm or less. However, in this case, since the rotating shafts of the upper and lower two blades 124a and 124b are configured as double cylinders, considering the bearings that rotatably support the respective blades and the gear width required to transmit the rotating force, this is considered. It is extremely difficult to actually implement the device within the range.

As described above, it is extremely difficult to actually reduce the free length in the conventional device arrangement. If the diameter of the roller bale is increased and the free length becomes longer, the running state of the yarn becomes unstable due to the string vibration at the free length portion, and the followability of the yarn to the traverse device is deteriorated. There is a high possibility that defects such as end face swelling and thread dropping will occur.
That is, the quality and productivity of the package may be reduced.

These disadvantages are described, for example, in FIGS.
3, the ears 132 of the package are
An edge bulge 133 is a defect that rises outward in the radial direction at the front end (ear portion) of the surface of the package 131, and an edge bulge 133 is a defect that the end surface of the package 131 bulges laterally. In addition, thread drop 134 (tear drop) is package 1
At the end face of No. 31, a defect in which the yarn falls off.

[0012]

SUMMARY OF THE INVENTION An object of the present invention is to focus on the problems in the prior art as described above, and in particular, to increase the diameter of the roller bale, free length can be easily achieved without inconvenience. High-speed winding, high added value of yarn that can achieve a good package form by shortening the free length while improving the yarn gripping force by increasing the diameter of the roller bale and reducing the actual winding tension It is an object of the present invention to provide a yarn winding device capable of forming a yarn and a method of manufacturing a yarn package using the winding device.

[0013]

In order to solve the above-mentioned problems, a yarn winding device according to the present invention comprises a bobbin holder on which a bobbin for winding a yarn is mounted on a package, and a bobbin holder for mounting the yarn on a package being wound. A roller bale for applying pressure, and a blade traversing device provided upstream of the roller bale with respect to the running direction of the yarn and traversing the yarn by rotating blades. To
It is provided at a position facing the roller bale with the yarn path interposed therebetween.

In this yarn winding device, the blade traverse device can be installed such that the rotating surface of the rotating blade is parallel to a plane perpendicular to the running yarn. It can also be installed so as to be inclined with respect to a flat surface. In the latter case, the free length can be further reduced as compared to the former. As the inclination angle,
At the intersection of the traveling yarn and the rotating blade, the angle of the rotating blade with respect to the yarn traveling direction may be set to exceed 90 degrees.

[0015] Further, a configuration may be provided in which a traveling yarn guide means, for example, a guide, which bends the yarn path and approaches the roller bale side, is provided upstream of the rotary blade in the yarn traveling direction. The guide means can be attached to the blade traverse device, for example. With this configuration, the winding angle of the yarn around the roller bale can be increased, and the free length can be further reduced.

It is preferable that the relative positional relationship between the roller bale and the blade traverse device be kept constant during winding. In order for the relative positional relationship between the roller bale and the blade traverse device to be kept constant during winding, for example, a traverse box equipped with a traverse device, a member supporting the roller bale, To
What is necessary is just to fix on the same member which moves up and down according to the winding thickness of a thread.

Further, the blade traverse device is preferably provided so as to be freely connected to and separable from the support member of the roller bale, and it is preferable that the relative positional relationship between them can be changed as required. By doing so, it is possible to maintain the desired constant relative positional relationship as described above during winding, and to retract the blade traverse device to a position where the work can be easily performed, such as when threading or switching yarns. Can be done.

The blade traverse device is preferably provided so as to be able to advance and retreat with respect to the yarn path. By doing so, the blade traverse device can be retracted to a position where the blade traverse device does not interfere with the yarn path when the yarn is hooked or the yarn is switched. The retracting method may be a method of moving the blade traverse device in parallel or a method of rotating it.

Although the type of the winding device is not particularly limited, for example, a so-called turret type winding device in which at least two bobbin holders are rotatably provided between a winding position and a standby position is preferable.

The method for manufacturing a yarn package according to the present invention comprises a method of winding a yarn using such a yarn winding device.

In the yarn winding device according to the present invention,
Since the blade traverse device is provided at a position facing the roller bale across the yarn path, the problem of interference between the blade traverse device body and the roller bale is substantially eliminated, and when the diameter of the roller bale is increased, In addition, the rotating blades of the blade traverse device can be easily arranged at a position close to the roller bale. Therefore, the free length can be significantly reduced without changing the design of the blade traverse device main body, for example, reducing the size of the gear portion or extending the rotating blade. In particular, the free length can be further reduced by installing the rotating blade so that the rotating surface is inclined or by providing a guide means for bending the yarn path.

Due to the significant shortening of the free length, even at the time of high-speed winding, problems such as ridges, end face swelling, and thread dropping are prevented from occurring in the package, and a good package form can be obtained.

Since the free length can be significantly reduced with the increase in the diameter of the roller bale, the diameter of the roller bale can be increased to improve the yarn gripping force, reduce the actual winding tension, and at the same time reduce the free length. A good package form can be ensured by shortening, and high-speed winding can be achieved, and high added value of the yarn and the yarn package can be realized.

[0024]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows an entire yarn winding device according to an embodiment of the present invention, and a yarn winding device 1 includes two bobbin holders 2 and 3.
It is configured as a shaft turret type winding device. A surface pressure is applied to the yarn package 4 being wound by the roller bale 5, and the yarn 6 to be wound is moved upstream of the roller bale 5 in the yarn running direction with the traverse fulcrum 7 as a swing fulcrum. The blade is traversed by the provided blade traverse device 8. Reference numeral 9 denotes a traverse motor.

As shown in FIG. 2, the package 4 is formed on a bobbin 10 mounted on the bobbin holder 2.
In the present embodiment, the roller bale 5 is disposed immediately above the yarn package 4 and retreats upward as the package 4 is thickened while maintaining a fixed positional relationship with the blade traverse device 8. .

The blade traverse device 8 is installed at a position facing the roller bale 5 with the yarn path 11 interposed therebetween. The blade traverse device 8 has a plurality of rotating blades 12 including a pair of rotating blades 12a arranged on an upper side of the drawing and a pair of rotating blades 12b arranged on a lower side of the drawing. 12, the running yarn 6 is traversed. In the present embodiment, the blade traverse device 8 is configured such that the rotation surface (rotation plane) of the rotary blade 12 is the traveling yarn 6 (the yarn path 1).
It is installed so as to be parallel to a plane substantially perpendicular to 1). The free length F is the distance between the intersection of the rotary blade 12a arranged on the upper side and the yarn 6, and the point where the yarn 6 comes into contact with the roller veil 5. In the present embodiment,
Immediately upstream of the rotary blade 12, a corrugated sheet guide 13 for guiding the yarn 6 to the rotary blade 12 and adjusting the yarn transfer speed is provided.

The blade traversing device 8 having the rotating blades 12 is configured as shown in FIGS. 3 and 4, for example. In the example shown in FIG. 3, the blade 21a and the blade 21b have a three-axis configuration, and the blades 21a and 21b are driven to rotate independently via gears 22a and 22b and a double cylindrical drive shaft 23. 22a, 22b, drive shaft 23 is 3
A set is provided. Six rotating blades 21a out of phase
After the yarns 6 are alternately transferred to 21a and 21b by the and 21b and inverted at the traversing end, similarly, the yarns 6 are sequentially rotated in the opposite direction by the six out-of-phase rotating blades 21a and 21b. Sent. By repeating these operations, the yarn 6 is traversed with a predetermined traverse stroke. In the example illustrated in FIG. 4, a two-axis configuration is used, and the blades 31 a and 31 b
The blades 31a and 31b and the gears 32a and 32b are independently rotated and driven via a double cylindrical drive shaft 33, respectively.
b, two sets of drive shafts 33 are provided. 4 out of phase
The yarn 6 is sent while being alternately delivered by the rotating blades 31a and 31b, and is reversed at the traversing end, and similarly, the four rotating blades 31a and 31b out of phase.
The yarn 6 is sent while being alternately delivered in the opposite direction. By repeating these operations, the yarn 6 is traversed with a predetermined traverse stroke.
Reference numerals 24 and 34 denote guides having corrugated plate portions for guiding the traversing yarn 6. The structure of the blade traverse device 8 itself is the same as that of the above-mentioned JP-B-46-1629.
No. 8 and JP-A-56-108049, which are known.

FIG. 5 shows a yarn winding device 41 according to another embodiment of the present invention. In this embodiment, the blade traversing device 8 has a rotating mechanism in comparison with the device shown in FIG. The rotating surface of the blade 12 is installed so as to be inclined with respect to a plane substantially perpendicular to the running yarn 6. The angle θ between the rotating surface of the rotating blade 12 and the running direction of the yarn 6 is:
The angle is more than 90 degrees. In this case as well, the distance between the intersection between the rotary blade 12a disposed above and the yarn 6 and the point where the yarn 6 comes into contact with the roller bale 5 is the free length F.

FIG. 6 shows a yarn winding device 51 according to still another embodiment of the present invention.
Compared to the device shown in FIG. 2, the blade traverse device 8 is arranged closer to the roller bale 5 side,
A guide 52 provided immediately upstream of the rotary blade 12 bends the yarn path 53 to move the yarn path 53 closer to the roller bale 5. Also in this case, the rotating surface of the rotating blade 12
The angle θ between the running direction of the yarn 6 and the running direction is an angle exceeding 90 degrees. And the rotating blade 1 arranged on the upper side
The distance between the intersection of 2a and the yarn 6 and the point where the yarn 6 comes into contact with the roller bale 5 is a free length F. However, since the yarn path 53 is moved to the roller bale 5 side by the guide 52. , The winding angle around the roller bale 5 is increased, the yarn comes into contact with the roller bale 5 earlier, and the free length F is further reduced.

The yarn 6 is wound by using such a winding device, and the package 4 is formed on the bobbin 10.
FIG. 7 shows how the yarn 6 is wound by using the winding device 41 shown in FIG. The traveling yarn 6 is wound around the package 4 while being traversed by the blade traverse device 8 arranged in an inclined manner and while being given a predetermined surface pressure by the roller bale 5. When the winding of the predetermined length is completed, the revolving drum 14 is rotated, and the bobbin holder 3 and the bobbin 10
Is turned to the winding position, and the next winding is started. FIG.
And the winding device shown in FIG.

The blade traverse device 8 is preferably provided so as to be able to advance and retreat with respect to the yarn path in order to retreat at the time of yarn hooking and yarn switching. With such a configuration, for example, as shown in FIG.
By moving (A), moving (B), and rotating (C) in a horizontal direction, the can be retracted as necessary.

During winding, in order to keep the blade traverse device 8 and the roller veil 5 in a desired fixed positional relationship even when the winding is thickened, for example, the roller bale support member 15 and the blade traverse device 8 shown in FIG. The traverse box 16 that accommodates and supports the traverse box 16 through a common (identical) member as shown by a connecting member 17 shown in FIG.
It is preferable that both are fixed so that they can be moved integrally. Here, the relative positional relationship between the two is changed as necessary in order to prevent the influence of the winding of the package and the natural frequency difference of each of the roller bale support member 15 and the traverse box 16 and to keep the two parallel. It is preferable to be able to do so. However, when it is necessary to retreat the blade traverse device 8 as shown in FIG. 8 at the time of thread hooking or thread switching, it is preferable that the blade traverse device 8 be freely connected and separated so that these connections can be released. .

In the yarn winding device according to the present invention as described above, the blade traverse device 8 is disposed at a position facing the roller bale 5 with the yarn path interposed therebetween. The problem of interference between the blade traverse device 8 and the roller bale 5 is substantially eliminated. Therefore, the position of the rotary blade 12 can be brought closer to the roller bale 5 without requiring a change in the structure of the blade traverse device 8 itself, and the free length is greatly reduced.

In particular, since the free length can be significantly reduced at the same time as the roller bail 5 is increased in diameter,
Good form of the package can be achieved while realizing high-speed winding. The following experiment was conducted to confirm this effect.

[0035]

EXAMPLES Examples 1 to 3 and Comparative Example 1 A yarn winding test was performed under the conditions shown in Table 1. In Example 1, the winding device shown in FIG. 2 was used, in Example 2, the winding device shown in FIG. 5 was used, and in Example 3, the winding device shown in FIG. 6 was used. In Comparative Example 1, the winding device shown in FIG. 9 was used as a conventional device.

As a result of the test, as shown in Table 1, the same diameter (φ
90 mm), the free length can be significantly reduced in the apparatus according to the present invention (Examples 1 to 3). The twill drop (yarn drop) was good, and the yarn quality was practically acceptable. On the other hand, in Comparative Example 1 using the conventional apparatus, since the free length was long, both the standing edge and the swelling of the end face were large, and the twill was not good.

[0037]

[Table 1]

[0038]

As described above, according to the yarn winding device of the present invention, even when the diameter of the roller bale is increased,
The free length can be easily reduced without causing inconvenience, the yarn gripping force can be improved by increasing the diameter of the roller bale, and the actual winding tension can be reduced. This makes it possible to obtain high value-added yarn and the like.

Further, according to the yarn package manufacturing method of the present invention, since the yarn is wound by using such an excellent winding device, the yarn can be formed in an excellent form at a high speed and with high productivity. A yarn package can be manufactured efficiently.

[Brief description of the drawings]

FIG. 1 is an overall perspective view of a yarn winding device according to an embodiment of the present invention.

FIG. 2 is a schematic partial configuration diagram of the apparatus of FIG. 1;

FIG. 3 is a view showing an example of a blade traverse device used in the winding device of the present invention, wherein (A) is a schematic front view and (B) is a schematic plan view.

FIG. 4 is a view showing another example of the blade traverse device used in the winding device of the present invention, wherein (A) is a schematic front view and (B) is a schematic plan view.

FIG. 5 is a schematic partial configuration diagram of a yarn winding device according to another embodiment of the present invention.

FIG. 6 is a schematic partial configuration diagram of a yarn winding device according to still another embodiment of the present invention.

FIG. 7 is a schematic configuration diagram showing a state of winding the yarn in the apparatus of FIG. 5;

FIG. 8 is a schematic partial configuration diagram of a yarn winding device showing each example of a retracting method of the blade traverse device.

FIG. 9 is a schematic partial configuration diagram of a conventional yarn winding device.

FIG. 10 is a schematic partial configuration diagram of a yarn winding device according to a modification of the conventional device.

FIG. 11 is a schematic partial configuration diagram of a yarn winding device according to another modified example of the conventional device.

FIG. 12 is a schematic cross-sectional view of a package showing a standing edge and a bulge on an end face.

FIG. 13 is a schematic side view of a package showing a twill drop.

[Explanation of symbols]

1, 41, 51 yarn winding device 2, 3 bobbin holder 4 yarn package 5 roller bale 6 yarn 7 traverse fulcrum 8 blade traverse device 10 bobbin 11, 53 yarn path 12, 12a, 12b, 21a, 21b, 31a, 31
b Rotating blade 13, 52 Guide (guide means) 15 Roller bale support member 16 Traverse box 17 Connecting member 22a, 22b, 32a, 32b Gear 23, 33 Drive shaft F Free length

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Hiroshi Otani 1-1-1 Sonoyama, Otsu City, Shiga Prefecture Toray Co., Ltd. Shiga Plant F-term (reference) 3F056 CA06 CB02

Claims (8)

[Claims] 1. A bobbin holder on which a bobbin for winding a yarn into a package is mounted, a roller bale for applying a surface pressure to the package being wound, and a roller bale provided upstream of the roller bale with respect to the yarn running direction. In a yarn winding device provided with a blade traverse device for traversing a yarn by a rotating blade, the blade traverse device is provided at a position facing a roller bale across a yarn path. Winding device. 2. The yarn winding device according to claim 1, wherein the rotating surface of the rotating blade of the blade traverse device is inclined with respect to a plane perpendicular to the running yarn. 3. The yarn winding device according to claim 1, further comprising a traveling yarn guiding means for bending a yarn path and moving toward a roller bale side on an upstream side of the rotary blade in the yarn traveling direction. . 4. The yarn winding device according to claim 1, wherein a relative positional relationship between the roller bale and the blade traverse device is constant during winding. 5. The yarn winding device according to claim 1, wherein said blade traverse device is provided so as to be connected to and separable from a support member of a roller bale. 6. The yarn winding device according to claim 1, wherein the blade traverse device is provided so as to be able to advance and retreat with respect to a yarn path. 7. At least two bobbin holders are provided rotatably between a winding position and a standby position.
A yarn winding device according to any one of claims 1 to 6. 8. A method for manufacturing a yarn package for winding a yarn using the yarn winding device according to claim 1.