JPH11256455A - Piecing of warp - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a warp-piecing method by which a connecting strength of a pieced part of the ending part finishing the winding of a yarn for warp with the starting part of the warp. SOLUTION: This piecing method for piecing the ending parts 27 of warp 16 with the starting parts 27a of other warp 27a comprises doubling the ending part 27 of each yarn 26 of the warp 16 with the starting part 27a of each yarn 26a of the warp 16a to be pieced, mutually moving the doubled yarns in the width direction while nipping the yarns 26 and 26a of the warps 16 and 16a by a twisting bar 30 to acid twist 31 to the doubled yarns with each other and further sticking the doubled yarns 26 and 26a with an adhesive 35 to carry out the piecing of each yarn 26 and 26a.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a warp splicing method in a sample warping method for producing a short warp for a weaving sample, and a warp splicing method which is one of the preparation steps for weaving.

[0002]

2. Description of the Related Art The present applicant has previously filed Japanese Patent Application No. 10-2599.
No. 4 (Title of Invention; Sample Warping Method and Sample Warping Machine, Filing Date: February 6, 1998) Wound a number of supply yarns in a ribbon shape between drums with circumferential grooves that can be separated freely. He proposed a sample warping method for making short warps for woven samples.

[0003] The warp length of this sample warp can be freely changed by changing the drum interval.

When a woven sample is made from this sample warp, it is necessary to sequentially splice the end of the winding end of the sample warp and the starting end of the winding start while winding the warp around the warper drum.

When the warp beam is switched in the warp or woven fabric manufacturing process, it is necessary to sequentially splice the end of the finished warp and the start of a new warp. As disclosed in JP-A-60-185848 and JP-A-4-100956, the yarn splicing of each yarn is performed by overlapping yarn ends to be spliced and bonding the overlapped portion. There is a method of bonding by bonding with an agent.

[0006]

However, if the yarns are joined with an adhesive, there is a problem that a sufficient joining strength cannot be obtained.

Accordingly, an object of the present invention is to provide a warp splicing method which can solve the above-mentioned problems and can increase the joining strength of a spliced portion between a winding end end of a warp yarn and a warp starting end. is there.

[0008]

According to a first aspect of the present invention, there is provided a method of piecing a start end of another warp to an end of a warp. Part and the beginning of the warp yarn to be spliced are overlapped, and the overlapped warp yarns are mutually moved in the width direction while being sandwiched by twist bars to add twist to the overlapped yarns and bond them. This is a warp splicing method in which the yarns are spliced by bonding with an agent.

According to a second aspect of the present invention, the end of the warp and the starting end of the warp to be spliced are respectively clamped by a clamp, and the warp yarns are overlapped with each other to separate the respective yarns. 2. The warp splicing method according to claim 1, wherein the tooth-shaped guide is inserted between the yarns and twisted with a twist bar.

According to a third aspect of the present invention, the clamping device is rotated by 90 degrees, the end adhesive supply device is positioned on the side opposite to the clamping device with the warp therebetween, and the yarn is spliced between the clamping devices. Then, after releasing the holding device and pressing the sandwiched yarn ends along the corresponding warp yarns, an adhesive is supplied from the end-fixing adhesive supply device to bond the yarn ends to the yarns. A warp splicing method according to claim 2.

According to a fourth aspect of the present invention, an odd number and an even number of warp yarns are separated, and the start ends of the warps are overlapped with each other so as to face the end portions of the separated warps, and piecing is performed.
It is a warp splicing method described.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of the present invention will be described below in detail with reference to the accompanying drawings.

First, the applicant of the present invention filed in Japanese Patent Application No.
The outline of the sample warping method of No. 25994 will be described with reference to FIG.

In FIG. 3, reference numeral 10 denotes a winding portion, which is composed of a pair of drums 11 and 12 having circumferential grooves which can be separated from each other. The two drums 11 and 12 are rotated synchronously to wind the yarn supply Y from the yarn supply bobbin 13 into a ribbon shape.

On the outer periphery of the winding unit 10, a traverse which grips the starting end of the yarn supply Y from the yarn supplying bobbin 14 and moves in the pitch axis direction for every rotation while moving along the outer periphery of the winding unit 10. A head 15 is provided.

Although a single yarn supplying bobbin 14 is shown in the drawing, a plurality of yarn supplying bobbins 14 are provided, and a traverse head 15 grips the yarn supplying Y from each yarn supplying bobbin 14 and winds it around the winding section 10 in a ribbon shape. It has become.

First, in order to make the warp yarn 16, as shown in FIG. 4 (a), the supply yarn Y from the yarn supply bobbin 14 is hung on the yarn guide 17, and then, while being pulled by the traverse head 15, a groove is formed. It is wound in a ribbon shape between the drums 11 and 12. At this time, the yarn feeders Y enter the circumferential grooves 13 of the drums 11 and 12, respectively, and the pitch traverse heads 15 corresponding to the number of yarn feeders move in the axial direction for each turn, as shown in FIG. The warp yarns 16 are wound around the grooved drums 11 and 12 in a predetermined number in the axial direction. When a predetermined number of warp yarns 16 are thus produced, the rotation of the drums 11 and 12 is stopped, and in this state, the warp yarns 16 extending between the drums 11 and 12 are held in parallel by a pair of holding members 18 and 18. Then, by cutting the yarn between the holding members 18 and 18 with the cutter 19 and removing the yarn from the drums 11 and 12, a warp sample 20 can be produced as shown in FIG.

After the warp 16 has been removed, the traverse head 15 is returned to the winding start position, the starting end of the supply yarn Y is gripped by the traverse head 15 and supplied to the yarn guide 17 as shown in FIG. The yarn Y is hooked, and the ribbon of the supply yarn Y is wound again.

In the present invention, the warp samples 20 are wound around a warper drum and are sequentially connected. This will be described below with reference to FIGS.

In FIG. 1, reference numeral 21 denotes a warper drum which feeds a warp to a loom, and connects a warp 16a to a warp 16 sandwiched by clamps 18 so that a plurality of woven samples can be woven at a time, and is long. The warp 16 is wound around the warper drum 21 while the end of the winding is held by the holding device 18, and then the holding device 18 is turned downward by 90 degrees. Of the warp 16 wound around the warper drum 21 is fixed on the holding member 18 of the warp 16 wound around the warper drum 21, and the middle of the warp 16 a is hung on the roller 22.
The tension weight 23 is hung on the holding member 18b at the end of the winding, and tension is applied to the holding tool 18b. And connect them with an adhesive.

In the same manner, by successively connecting the warp yarns 16 to form a long warp, a plurality of woven samples can be produced simultaneously.

The connection of the warp yarns 16 will be described in detail with reference to FIG.

First, as shown in FIG. 3A, the end portion 27 of the yarn 26 of the warp 16 wound on the warper drum side and the start end 27a of the yarn 26a of the warp 16a to be spliced are overlapped. After that, the clamps 18, 1 for the two warps 16, 16a
8a, the end adhesive supply device 2 with the yarns 26, 26a interposed therebetween.
8 and 28a are opposed to each other, and the holding device 18a at the winding start end side and the end adhesive supply device 28a are used to remove the yarn 2.
The yarns 26, 26a are held by the holding tool 18 at the end of winding and the end adhesive supply device 28 so as to hold the yarns 26, 26a.
So as to hold it.

In order to separate the superposed start end portion 27a and end end portion 27 from the respective yarns 26, 26a, a comb-shaped guide guide 29, 29a is inserted between the adjacent yarns 26, 26a.

Next, as shown in FIG.
At the center of the yarns 26, 26a between 8, 18a, the warp 16,
The pair of twist bars 30, 30 are positioned so as to sandwich the pair 16a, and the twist bars 30, 30 are alternately moved in the width direction, so that the overlapping yarns 26, 26a of the start end 27a and the end 27 are overlapped. Twist 31 is applied to each other. The twist bars 30, 30 are formed by attaching a twist material 33 having a large friction coefficient such as rubber to a bar body 32. When the twist 31 is applied, the twist bars 30 may be moved alternately once in the width direction, but several times. To do this, the yarns 26, 26a are twisted, then separated from the yarns 26, 26a and returned to the original position, and then moved again in the same manner to apply the twist 31. At this time, the guides 29, 29a shown in FIG. 3A are still inserted between the yarns 26, 26a, and the adjacent yarns are twisted by the twist bar 30. 26, 26a are not entangled with each other.

The overlapped end 2 of the yarns 26, 26a
After the twist 31 is applied to the ends 27 and 27a, the adhesive 35 is supplied from the main adhesive supply means 34 to the ends 27 and 27a on both sides of the twist bar 30 to bond the ends 27 and 27a where the twist 31 is applied. .

Next, as shown in FIG. 3 (c), with the ends 27, 27a being sandwiched by the twist bars 30, 30, the clamps 18, 18a are opened as shown and clamped by the clamps 18, 18a. By opening the end 37 and the start end 37a, one of the ends 27, 27a is wound around the warper drum 21 and the other is pulled by the tension weight 23, so that the excess twist is returned and a little. The end 37 and the starting end 37a are extended to the yarn 2
6, 26a, and then the end adhesive supply device 2
8 and 28a to supply the adhesive to the end 37 and the start 37a.
Is bonded to the yarns 26, 26a to complete the splicing of the yarns 26, 26a of the warps 16, 16a as shown in FIG.

Thus, in the present invention, the warp 1
The end 27 and the start 27a of the first and second 6a and 16a are overlapped and twisted, and the ends 31 and the start 37a of the both ends 27 and 27a are also bonded with the adhesive 35. As a result, the joining strength of the splicing can be increased, and the ends 37 and the starting ends 37a are also formed by the yarns 26, 26.
By adhering along a, the seam does not hinder when weaving with a loom.

Next, another embodiment of the present invention will be described with reference to FIG.

In the embodiment of FIG. 1, each warp 16 of the warp 16 is wound directly on the warper drum 21 and a new warp 16a is spliced.
If the number of threads increases, the interval becomes small and the splicing becomes difficult. Therefore, as shown in FIG. 2, the warp yarns 16 wound around the warper drum 21 are divided into odd rows 16o and even rows 16e, and are wound on the drums 40o and 40e. The winding ends of the odd rows 16o and the even rows 16e are connected to the warp yarns 16 to be spliced.
In FIG. 3A, the yarns are spliced in the same manner as in FIG.

By splitting the warp yarns 16 into the odd rows 16o and the even rows 16e as described above, the splicing is facilitated.

In the case of dividing the odd-numbered rows 16o and the even-numbered rows 16e, when the yarn is wound around the winding section 10 described with reference to FIG. And the warp yarns 16 in an even-numbered row.

On the other hand, the warp 16 obtained as shown in FIG.
If the two sets are wound in an odd-numbered row and an even-numbered row around the warper drum 21, the number of warp yarns can be twice as many as the warp yarn 16 obtained in FIG.

[0034]

In summary, according to the present invention, when a warp is wound on a warper drum, the end of the warp and the end of the warp are twisted and then bonded with an adhesive to form a strong seam. It can be.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view illustrating an embodiment of the present invention.

FIG. 2 is a schematic perspective view illustrating another embodiment of the present invention.

FIG. 3 is a view showing a step of piecing the ends of the warps in FIG. 1;

FIG. 4 is a view showing a process until a warp sample is produced in the invention of the prior application.

[Explanation of symbols]

 16, 16a Warp 21 Warper drum 26, 26a Thread 27 End 27a Start 30 Twist bar 31 Twist 35 Adhesive

Claims (4)

[Claims] In a method of splicing the start end of another warp to the end of a warp, the end of each warp yarn and the start end of the warp yarn to be spliced are overlapped. A warp characterized in that the superposed warp yarns are mutually moved in the width direction while being sandwiched by twist bars to add twists to the overlapped yarns and to bond the yarns with an adhesive to splice each yarn. Splicing method. 2. A comb-shaped guide guide in which the end of the warp and the start of the warp to be spliced are respectively clamped by a clamp and the warp yarns are overlapped with each other to isolate the respective yarns. The warp splicing method according to claim 1, wherein the yarn is inserted between the yarns and twisted with a twist bar. 3. The clamping device is rotated by 90 degrees, the end adhesive supply device is positioned on the side facing the clamping device with the warp interposed therebetween, and after the yarn is spliced between the clamping devices, the clamping device is rotated. 3. An adhesive is supplied from the end-fixing adhesive supply device to bond the yarn ends to the yarns after pressing and pressing the sandwiched yarn ends along the corresponding warp yarns. Warp splicing method. 4. The warp splicing method according to claim 1, wherein the warp yarns are separated into odd and even warp yarns, and the start ends of the warp yarns are overlapped with each other so as to face the end portions of the separated warp yarns.