JPH0686689B2 - Twin yarn separation device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention separates a twin yarn into two constituent yarns when, for example, splicing a twin yarn wound into a winding package in a yarn spinning machine. For a twine separation device.

[Prior Art] The yarn mixing machine has two yarn feeding packages 1, 1 as shown in FIG.
The two yarns 2, 2 drawn out from are wound together on a winding package 3. Two threads like this 2,2
The yarn formed by combining the two is called twin yarn 4.

Conventionally, when the yarn is cut during winding, the cut end of the twin yarn 4 wound on the winding package 3 and the yarn feeding package
Since the cut ends of the yarns 2 and 2 drawn out from 1 and 1 in an aligned state were tied together as they were and the yarn was spliced, the joint portion became large and was easily conspicuous, which could be a defect of the product.

Therefore, the cut end of the double yarn 4 wound in the winding package 3 is separated into the two constituent yarns 4a and 4b, and the two yarns 2 and 2 drawn from the yarn supplying package 1 and 1 and the joint Attempts have been made to prevent the occurrence of product defects by making the seams small and inconspicuous by tying them separately so that the positions of 5 and 5 are offset, and automation of the work has also been attempted.

[Problems to be Solved by the Invention] However, it is difficult to automatically separate the yarn end of the twine yarn on the side of the winding package, which is once combined, into two constituent yarns without manual operation by an operator. It has been difficult to achieve complete automation of twin yarn separation and yarn splicing work.

Therefore, an object of the present invention is to solve the above-mentioned problems and provide a twin yarn separating device capable of automatically separating the twin yarn into its constituent yarns and enabling the complete automation of the twin yarn separation and yarn splicing work. To do.

MEANS FOR SOLVING THE PROBLEM In the present invention, a groove is formed in which a central portion is formed along a yarn path of a twin yarn, and the constituent yarns are aligned in the width direction in the central portion by abutting the twin yarn, A pushing piece having a pointed tip which is inserted between the constituent yarns arranged in parallel to separate and separate the constituent yarns.

[Operation] When the twin yarn is brought into contact with the groove, the constituent yarns of the twin yarn are arranged in parallel in the width direction of the groove. When the pushing piece having a sharp tip is inserted between the constituent yarns in the groove, the constituent yarns are separated from each other by the pushing piece.

In this way, the twin yarns can be automatically separated into two constituent yarns, so that the twin yarn separation and yarn splicing operations in the compounding machine can be fully automated.

[Embodiment] An embodiment of the present invention will be described below in detail with reference to the accompanying drawings.

In FIG. 1 to FIG. 3, 10 is a twine separating device, the main body 11 of which is formed by connecting two side plates 12, 12 via a pair of spacers 13, 13, and inside the main body 11 is a side plate 12. And a passage 14 defined by the spacer 13 and communicating in the longitudinal direction. V-shaped grooves 15 and 15 with an opening angle θ are formed at one end of both side plates 12 and 12.
Is formed, and its central portion extends along the yarn path of the double yarn 4. Then, the two yarns 4a and 4b forming the double yarn 4 are brought into contact with the groove 15 by contacting the double yarn 4 with the groove 1.
5 are arranged side by side in the width direction. Opening angle θ is 45 °
~ 150 ° is preferred. The shape of the groove 15 may be U-shaped, arc-shaped or the like.

Specifically, the central portion of the groove 15 is located at the central portion in the width direction of the passage 14, and the central portion of the groove 15 is inclined at a predetermined inclination angle β, β ′ in the thickness direction of the side plate 12. Surfaces 16 and 16 are formed respectively. If the angles of entry of the twin yarn 4 into the groove 15 are α and α ′, α <β and α ′ <β ′ are preferable.

When the twin yarn 4 is stretched so as to straddle the grooves 15, 15 of the both side plates 12, 12, the edge 17 of the inclined surface 16 on the passage 14 side (see FIG. 4)
Then, the constituent yarns 4a and 4b are arranged side by side along the edge 17 by contacting.

And, in the passage 14 in the main body 11, there is a pushing piece having a sharp tip.
18 is slidably inserted with its tip portion 18a positioned on the groove 15 side, and when the tip end portion 18a is advanced from the standby position retracted from the groove 15, the tip end portion 18a is It is inserted between the constituent yarns 4a and 4b juxtaposed in the groove 15 to separate the double yarn 4 into two constituent yarns 4a and 4b. The push-out piece 18 is formed by forming a distal end portion 18a of a plane isosceles triangle on one end portion of a long plate material that can be fitted into the passage 14. The rear end portion 18b of the push-out piece 18 extends from the main body 11, and a drive mechanism (not shown) including a cam or a cylinder for driving the push-out piece 18 is connected to the rear end portion 18b.

According to this structure, when the twin yarn 4 is stretched so as to straddle the grooves 15 and 15 of the both side plates 12 and 12, the twin yarn 4 comes into contact with the edge 17 of the inclined surface 16 of the groove 15 to form the constituent yarn. 4a, 4b groove 1 along edge 17
5 are arranged in parallel in the width direction. Then, when the push piece 18 is advanced to the groove 15 side by a drive mechanism (not shown), the push piece is
The pointed tip portion 18a of 18 is inserted between the constituent yarns 4a and 4b juxtaposed in the groove 15, and the double yarn 4 is separated into the two constituent yarns 4a and 4b.

In this way, the twin yarn 4 can be automatically separated into the two constituent yarns 4a and 4b, so that the twin yarn separation and the yarn splicing operation in the yarn spinning machine can be fully automated.

FIG. 5 shows an embodiment in which the twin yarn separating device 10 having the above-mentioned structure is attached to a yarn spinning machine.

A twin yarn separating device 10 and a yarn joining device 19 are vertically arranged in the yarn path of the twin yarn 4 between the yarn supplying package and the winding package 3 (not shown). When the suction mouth 20 sucks the yarn end of the cut twine yarn 4 on the winding package side and pulls it out from the winding package 3 along the yarn path, the twine yarn 4 is inserted into the groove of the twine separating device 10.
Guided in the groove 15, the constituent threads 4a, 4b are arranged in parallel in the groove 15. By pushing the pushing piece 18 forward in this state,
The pointed tip portion 18a of the pusher piece 18 is inserted between the constituent yarns 4a, 4b juxtaposed in the groove 15, and the constituent yarns 4a, 4b are separated left and right. As a result, the constituent yarns 4a, 4b of the twin yarn 4 are arranged on the yarn joining device 19 in a state of being separated left and right, so that the yarn end on the yarn feeding package side is also left and right on the yarn joining device 19 by the suction mouth. If you place them in separate state,
The yarn ends can be spliced separately by 19, and in some cases, the splicing can be performed so that the seams are displaced.

6 and 7 show another embodiment of the twine separating device.

The body 11 is formed by connecting both side plates 12, 12 via a spacer (not shown) on the rear side, and a groove 15 is formed in the center of the front end of each side plate 12, 12. The structure of the groove 15 is similar to that of the above-mentioned embodiment. A pair of left and right pusher pieces 18, 18 are rotatably attached by shafts 21, 21 between both side plates 12, 12 at the front of the main body 11. At the standby position where the tip end portion 18a of the pusher piece 18 is retracted from the groove 15, the tip end portion 18a is formed so as to overlap with each other in the vertical direction, and a sharp hook-shaped protrusion 22 is formed facing the central portion of the groove 15. . The other end portions 18b, 18b of both pusher pieces 18,18
A drive mechanism (not shown) for rotating the same simultaneously is connected to.

According to such a configuration, when the two pushing force dividing pieces 18, 18 are rotated about the respective shafts 21, 21 with respect to the constituent yarns 4a, 4b juxtaposed in the groove 15 as shown by imaginary lines, first, Projection 22 is a constituent thread
4a, 4b, then the left pusher piece 18 is hooked to the left side component thread 4a at the hook portion 23 of the protrusion 22 and the right pusher piece 18 is configured to the right side by the hook portion 23 of the protrusion 22. Since the yarn 4b is hooked and separated rightward, the constituent yarns 4a and 4b can be largely separated left and right.

[Effects of the Invention] In short, according to the present invention, since the constituent yarns are juxtaposed by bringing the twin yarns into contact with the groove, and the pushing piece having a sharp tip is inserted between the constituent yarns. The yarn can be separated into two constituent yarns automatically and reliably and easily, and the separation of twin yarns and the yarn splicing operation in the compounding machine can be fully automated.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment of a twine separating device according to the present invention, FIG. 2 is a sectional view taken along line II-II of FIG. 1, FIG. 3 is a front view of the device, and FIG. FIG. 5 is an enlarged perspective view of a groove, FIG. 5 is a view showing a separating operation state of twin yarns in a yarn spinning machine equipped with the same device, and FIG. 6 is a plan view showing another embodiment of the twin yarn separating device.
FIG. 7 is a front view of the same device, and FIG. 8 is a view showing a splicing state of twin yarns in a yarn spinning machine. In the figure, 4 is a twin yarn, 4a and 4b are its constituent yarns, 15 is a groove, 18 is a pushing piece, and 18a is its tip.

Claims (1)

[Claims] 1. A groove formed in a central portion along a yarn path of twin yarns so that the constituent yarns are brought into contact with each other so that the constituent yarns are juxtaposed in the width direction in the central portion, and is inserted between the juxtaposed constituent yarns. A twin yarn separating device, comprising: a pushing piece having a sharp tip for pressing and separating the constituent yarns.