JP2939446B2 - Winders for large package production - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a winder for producing a large package. In more detail, the actual bobbin wound by a spinning machine, especially a ring spinning machine, has a small amount of yarn due to the nature of the machine, so to obtain a large package with a shape suitable for the subsequent process or a large amount of yarn, It is necessary to wind a plurality of bobbins while tying them. The present invention relates to a winder for producing such a large package.

[0002]

2. Description of the Related Art The present inventor has provided a winder W (hereinafter simply referred to as a winder W) for manufacturing a large package disclosed in Japanese Patent Application Laid-Open No. 8-282916. FIG. 4 is a schematic perspective view of the winder W, and FIG. 5 is a side view of the same. 4 and 5, 1 is a grooved drum, 2 is a bobbin, 3 is a receiving plate of the actual bobbin b, 4 is a yarn guide, 5 is a traverse guide, and 6 is a tensioner. The winder W is provided with a bobbin 2 by rotating the grooved drum 1.
Is rotated to wind the yarn y as a large package P. A traverse guide 5 is provided between the grooved drum 1 and the tensioner 6. The traverse guide 5 includes a guide groove 15 and a guide ring 16, and the guide rod 15 is mounted in front of the grooved drum 1 in parallel. The guide ring 16 slides on the guide rod 15 by an appropriate slide mechanism. In other words, the yarn y reciprocates repeatedly between one end, the middle and the other end of the grooved drum 1.

FIG. 6 is a schematic perspective view of the grooved drum 1. As shown in FIG.
FIG. 7 is a schematic plan view of the winder W. As shown in FIGS. 6 and 7, the grooved drum 1 is formed with grooves 11 and 13 having traverse grooves 10 at both ends, and a groove is formed in an intermediate portion 12 between the grooves 11 and 13. The surface is finished in a smooth cylindrical shape without forming.

Accordingly, while the yarn y is guided by the traverse groove 10 of the groove 11 on one end side of the grooved drum 1, the yarn y
Is traversed and traversed at one end Pa of the large package P. While the yarn y passes through the intermediate portion 12 of the grooved drum 1, the yarn y is coiled around the intermediate portion Pb of the large package P. The thread y is the groove 1 on the other end of the grooved drum 1.
While being guided by the third traverse groove 10, the yarn y is traversed and traversed at the other end Pc of the large package P.

[0005] In other words, both ends Pa and Pc of the large package P are twill-wound, while the middle part Pb is coil-wound. For this reason, the unwinding resistance of the coil-wound portion is very small, and the width of the twill-wound portion is also small, so that both the value and the fluctuation of the unwinding resistance are suppressed to be small overall. . In addition, since the bobbin 2 has no flange, there is no inconvenience such as an increase in unwinding resistance and a breakage of the yarn caused by the yarn y contacting the flange.

[0006]

However, according to the subsequent research conducted by the present inventors, the following has been found. As shown in FIG. 6, grooves 11 and 13 are provided on the grooved drum 1.
In the case where the traverse grooves 10, 10 which are annularly continuous are formed along the drum peripheral surface of the grooved drum 1, in the large package P, as shown in FIG. Both ends Pa, Pc wound with Pb
It was confirmed that orbital grooves g, g were formed at each boundary portion between the two. Therefore, the movement of the yarn y in the grooved drum 1 was considered in detail. As a result, when the traverse guide 5 moves the yarn y from the groove portions 11 and 13 of the grooved drum 1 to the central portion 12, the yarn y passing through the traverse groove 10 is not released from the traverse groove 10 smoothly. It turns out. Conversely, when the yarn y is released from the traverse groove 10, the yarn y moves rapidly and rapidly on the peripheral surface of the grooved drum 1 in the axial direction toward the central portion thereof. Due to the above phenomenon, the winding amount of the yarn y in each of the orbital grooves g and g in the large package P is smaller than in the other portions, and the intermediate portion Pb and each end portion P
a and Pc were easily separated from each other, and it was found that the portion was easily broken when the yarn y was unwound.

In view of such circumstances, the present invention provides a large package in which a coil is wound at an intermediate portion and can be wound at both ends, and the value and fluctuation of unwinding resistance are both small. It is an object of the present invention to provide a winder in which a circumferential groove is not formed in a portion, the strength is high and it is hard to collapse, and many yarns can be wound as a large package.

[0008]

According to a first aspect of the present invention, there is provided a winder for manufacturing a large package, comprising a bobbin and a grooved drum, wherein the winder rotates the bobbin around which the yarn is wound while traversing the yarn by the grooved drum. In the grooved drum, traverse grooves for traversing the yarn are formed only at both ends of the grooved drum, and are not formed at the intermediate portion. In front of the drum, there is provided a traverse guide for repeatedly reciprocating the yarn to be wound between the groove portion on one end side of the grooved drum, the intermediate portion without the traverse groove, and the groove portion on the other end side, on the peripheral surface of the grooved drum, it between the groove and the intermediate portion of the both end sides
At each boundary portion, the traverse groove is not formed continuously , and the traverse groove is interrupted to form a grooveless portion.
Of the traverse groove on the peripheral surface of the grooved drum.
The length of the groove-free portion between the two ends is the length of the grooved drive.
It is characterized by a rotation angle of 6 to 18 degrees . In the winder for manufacturing a large package according to claim 2, in the invention according to claim 1 , in the traverse groove, an entrance-side groove portion on a side for introducing the yarn into the groove is provided on a side on which the yarn is out of the groove. The groove width is wider than the outlet groove portion.

[0009]

Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 2 is a schematic perspective view of a winder WA (hereinafter, simply referred to as a winder WA) for manufacturing the large package of the present embodiment. In the figure,
1A is a grooved drum, 2 is a bobbin, 3 is a receiving plate of the actual bobbin b, 4 is a yarn guide, 5 is a traverse guide, and 6 is a tensioner. The actual bobbin b is obtained by winding the yarn y. Examples of the yarn y include a yarn for a weaving machine, a plying yarn, a warping yarn, a yarn for dyeing, and the like, and various yarns can be used. This winder WA has a grooved drum 1A.
To rotate the bobbin 2 to rotate the yarn y
Is wound up as a large package P.

A traverse guide 5 is provided between the grooved drum 1A and the tensioner 6. The traverse guide 5 includes a guide groove 15 and a guide ring 16, and the guide rod 15 is attached in parallel before the grooved drum 1A. The guide ring 16 is a guide rod 15
The upper part is slid by an appropriate slide mechanism.
That is, the yarn y reciprocates repeatedly between one end, the middle and the other end of the grooved drum 1A.

Next, the shape of the grooved drum 1A will be described. FIG. 1 is a schematic perspective view of a grooved drum 1A applied to the winder WA of the present embodiment. As shown in the figure, the grooved drum 1A has grooves 11 and 13 having traverse grooves 10A formed at both ends thereof, and a groove is formed in an intermediate portion 12 between the groove 11 and the groove 13. The surface is finished in a smooth cylindrical shape without forming.

The traverse groove 10A is not formed continuously at the boundary between the grooves 11, 13 and the intermediate part 12 on the peripheral surface of the grooved drum 1A, and the groove is interrupted and the groove is not formed. E. In other words, both ends of the traverse groove 10A are separated. The length of the non-groove portion E is about 10 mm. The length of the grooveless portion E corresponds to about 12 degrees as an angle on the circumference of the grooved drum 1A. The length of the non-groove portion E is 6 degrees as the angle on the circumference.
~ 18 degrees is preferred.

The traverse groove 10A is not formed to have the same width from one end to the other end. That is, the traverse groove 1
In 0A, the groove width of the entrance groove T1 from one end to the central portion on the side where the yarn is introduced into the groove is wider than the other portion, that is, the exit groove T2 on the side where the yarn is outside the groove. Therefore, the yarn y can be surely guided to the traverse groove 10A, and an effect that the traverse can be surely performed is achieved. It is preferable that the end of the entry groove T1 of the traverse groove 10A be squared, since the yarn y can easily enter the traverse groove 10A.

With this configuration, while the yarn y is guided by the traverse grooves 10A of the groove 11 on one end of the grooved drum 1A, the yarn y is traversed and the one end P of the large package P is traversed.
It is wrapped in a. The yarn y is in the middle 12 of the grooved drum 1A.
The yarn y is coiled around the middle part Pb of the large package P during the period of time. While the yarn y is guided by the traverse groove 10A of the groove 13 on the other end side of the grooved drum 1A, the yarn y is traversed and the other end P of the large package P is traversed.
It is wound in c.

Next, a winding operation by the winder WA of the present embodiment will be described. FIG. 3 is a plan view of the winder WA of the present embodiment. As shown in FIGS. 2 and 3, in the winder WA of the present embodiment, the thread y is wound around the bobbin 2 as the large package P by rotating the grooved drum 1 </ b> A and rotating the bobbin 2. Is passed through the traverse grooves 10A of the ends 11, 13 of the grooved drum 1A, the yarn y is at the ends Pa, P of the large package P.
c, when passing over the surface of the intermediate portion 12 in which the traverse groove 10A is not formed, the yarn y is fed sideways by the traverse guide 5 while the yarn y is coiled at the intermediate portion Pb of the large package P. Rolled up. Then, the yarn y reciprocates repeatedly between both ends of the grooved drum 1A by the traverse guide 5, so that a large package P is obtained in which each end Pa, Pc is twilled and the intermediate portion Pb is coiled.

Both ends Pa and Pc of the large package P are wound in a twill, while an intermediate portion Pb is wound in a coil. For this reason, the unwinding resistance of the coil-wound portion is very small, and the width of the twill-wound portion is also small, so that both the value and the fluctuation of the unwinding resistance can be suppressed as a whole. To play. Further, since the bobbin 2 has no flange, there is an effect that inconveniences such as an increase in unwinding resistance and yarn breakage due to the contact of the yarn y with the flange do not occur.

Moreover, the yarn y is applied to each end 1 of the grooved drum 1A.
1 and 13, when the yarn y is in the traverse groove 10A
, And reciprocates along the width direction of the large package P, but since the traverse grooves 10A are not formed continuously, the yarn y does not always engage with the traverse grooves 10A. That is, when the traverse guide 5 moves the yarn y from each end 11, 13 of the grooved drum 1 </ b> A to the center 12, the yarn y engaged with the traverse groove 10 </ b> A is traversed by the grooveless portion E. It is released from the swing groove 10A and moves to the central portion 12 as it is. That is, the yarn y is traversing groove 10A
It is released smoothly from. Therefore, the yarn y moves to the intermediate portion 12 slowly. Accordingly, at the boundary between the two ends Pa and Pc of the large package P and the intermediate portion Pb wound with the coil, the density of the yarn y is distributed substantially in the same manner, and the circumferential groove g is not formed. For this reason, there is an effect that the strength is high, it is hard to be broken, and many yarns y can be wound as a large package P.

[0018]

According to the winder for manufacturing a large package according to the first aspect, a coil can be wound at an intermediate portion of the large package and can be wound at both ends, and both the value and fluctuation of unwinding resistance are small. Since a circumferential groove is not formed at the boundary between the coil winding and the twill winding, a large package in which a large number of yarns can be manufactured with high strength and high resistance to collapse. According to the winder for manufacturing the large package according to the second aspect, the yarn can be reliably guided to the traverse groove, and the yarn can be reliably wound.

[Brief description of the drawings]

FIG. 1 is a grooved drum 1A of a winder WA of the present embodiment.
It is a schematic perspective view of.

FIG. 2 is a schematic perspective view of a winder WA of the present embodiment.

FIG. 3 is a schematic plan view of the winder WA of the present embodiment.

FIG. 4 is a schematic perspective view of a conventional winder W.

FIG. 5 is a schematic side view of a conventional winder W.

FIG. 6 is a schematic perspective view of the grooved drum 1.

FIG. 7 is a schematic plan view of a conventional winder W.

[Description of Signs] 1A Drum with groove 2 Bobbin 5 Traverse guide 10A Tray groove 11 Groove 12 Center 13 Groove E No groove P Large package Pa end Pb Intermediate Pc end T1 Entry groove T2 Exit groove

Claims (2)

(57) [Claims] 1. A winder comprising a bobbin and a grooved drum, wherein the winder rotates a bobbin wound with a yarn while traversing the yarn with the grooved drum, wherein the grooved drum traverses the yarn. A traverse groove for guiding is formed only at both ends of the grooved drum, and is not formed at an intermediate portion. In front of the grooved drum, a yarn to be wound is provided on the grooved drum. A traverse guide is provided for repeatedly reciprocating between the groove on one end, the intermediate portion without the traverse groove, and the groove on the other end. The traverse groove is not formed continuously at each boundary portion with the portion, and the traverse groove is interrupted and the groove is formed.
Has a pear portion, wherein both ends of the traverse groove on the peripheral surface of the grooved drum
Of the grooved drum has a length corresponding to the rotation of the grooved drum.
A winder for producing a large package, which is equivalent to a roll angle of 6 to 18 degrees . 2. The traverse groove according to claim 1, wherein an inlet groove on a side for introducing the yarn into the groove has a wider groove width than an outlet groove on a side for letting the yarn out of the groove. A winder for producing the large package according to 1.