JPH0523590Y2 - - Google Patents

Description

[Detailed explanation of the invention] A. Purpose of the invention [Field of industrial application] This invention relates to a yarn splicing device used in a winder that combines two threads and winds them, and a spinning machine that winds double threads. be.

[Conventional technology]

When two yarns are combined and wound onto a winding package, each yarn is guided into a yarn guide groove located at a position offset from the yarn travel path, and one yarn is cut and both yarns are separated. Prior to the filing of this application, a yarn splicing device in which the yarn splicing points are shifted from each other when splicing the yarns separately was already known.

[The problem that the idea aims to solve]

Conventional yarn splicing devices, as described above, shift the yarn guide groove from the yarn travel path and vary the distances each yarn passes through the yarn splicing device, thereby shifting the yarn splicing points from each other. However, since the degree of deviation is extremely small, it is insufficient to make the spliced area less noticeable.

This idea involves a yarn splicing device that has a yarn shifting device so that the spliced points are sufficiently shifted from each other to make them unnoticeable when splicing two yarns together and winding them onto a winding package. is intended to provide.

B. Structure of the invention [Means for solving the problem] In order to achieve the above object, the yarn splicing device of this invention operates at the time of splicing when two yarns are combined and wound into a package cage. The yarn shifting device 10 includes a yarn holding lever 12 that can shift one yarn with respect to the other yarn.

[Effect]

In the yarn splicing device configured as described above, when splicing two yarns being combined, one yarn is shifted relative to the other yarn by the yarn presser lever 12,
After the yarn splicing is completed, the operation of the yarn presser lever 12 is released, and as a result, the positions of both seams are shifted.

〔Example〕

The yarn splicing device of this invention is used in a winder that combines two yarns and winds them, and a spinning machine that winds two yarns, and both devices are exactly the same in terms of yarn splicing.

Here, in the winder, the yarn on the yarn feeding side,
In a spinning machine, the thread on the spinning side is called the upper thread, and the thread on the winding side is called the lower thread.

In this example, a double yarn splicer is used as the yarn splicing device, but this invention is not about the double yarn splicer itself, but rather the point of attaching a device to shift one of the two yarns during yarn splicing. Since the double yarn splicer has the following characteristics, a detailed explanation of the double yarn splicer will be omitted and an outline will be explained with reference to FIG.

Upper thread is attached before and after double yarn splicer 1.
A suction pipe 2 that sucks and grips Yn ₁ and Yn ₂ and guides them to the double yarn splicer 1, and a bobbin thread Yp ₁ ,
Suction and grip Yp ₂ and double yarn splicer 1
A suction mouse 3 that guides the user is rotatably provided.

When a slab catcher (not shown) senses a thread breakage or detects a thread defect and automatically cuts the running thread, the suction pipe 2 sucks the ends of the upper threads Yn ₁ and Yn ₂ and removes the threads from the suction pipe. The mouse 3 sucks the yarn ends of the bobbin yarns Yp ₁ and Yp ₂ from the winding package cage, rotates them together, and introduces them into the double yarn splicer 1. That is, the upper thread Yn ₁ and lower thread Yp ₁ on the left side are present in the left thread splicing hole 4, and the upper thread Yn ₂ and lower thread Yp ₂ on the right side are present in the right thread splicing hole 5, respectively. Introduced through a slit. Each yarn end is clamped by a clamp device (not shown), and then the yarns on the suction pipe 2 side and the suction mouth 3 side are cut. Then upper thread Yn ₁
to the control nozzle 6, upper thread Yn ₂ to the control nozzle 7,
The bobbin thread Yp ₁ is guided to the control nozzle 8, and the bobbin thread Yp ₂ is guided to the control nozzle 9, where they are untwisted by compressed fluid to a state suitable for splicing. Each unraveled yarn end is drawn into the thread joining hole 4 or 5, and in the thread joining hole 4, the upper thread Yn ₁ and the lower thread Yp ₁ , and in the thread joining hole 5, the upper thread Yn ₂ and the lower thread Yp. ₂ are placed one on top of the other and spliced by the action of compressed fluid.

In this way, two yarns are spliced by the double yarn splicer 1. In this invention, when splicing, the bobbin thread Yp ₂ is spliced by the yarn shifting device 10.
It is something that is dragged through.

Next, the thread shifting device 10 will be explained with reference to FIG. 2.

The thread shifting device 10 mainly includes a plurality of fixed guides 11 whose positions are fixed, and the fixed guides 1
1 and a thread presser lever 12 which is swingably supported by a lever shaft 13.

The thread presser lever 12 also extends to the opposite side of the fixed guide 11, and is biased by a spring 14 toward a thread presser lever operating cam 15 provided near the end thereof. A displacement dimension setting cam 16 is applied to the end of the thread presser lever 12 on the fixed guide 11 side, and by rotating this displacement dimension setting cam 16, the fixed guide 11 of the thread presser lever 12 is set. It is possible to set the depth to which the lower thread Yp ₂ sinks, that is, the amount of shift of the bobbin thread Yp 2. The displacement dimension setting cam 16 is rotated by rotating the knob shaft 18 to which it is fixed using the knob 17. As shown in FIG.
Concave portions are formed at equal intervals on the back surface of the plate body 19, and a ball 21 biased by a spring 20 present in a concave portion of a plate 19 provided oppositely engages with the concave portions. The shift amount of bobbin thread Yp ₂ can be easily set.

The state of the thread presser lever operating cam 15 in FIG. 2 is during thread splicing, and normally,
The long diameter portion of the thread presser lever operating cam 15 engages with the thread presser lever 12, and the opposite side thereof is lifted from the gap of the fixed guide 11.

As shown in FIG. 4, when the thread presser lever 12 is sunk into the gap between the fixed guides 11 and the bobbin thread Yp ₂ is dragged in, both threads are spliced, and then when the thread presser lever 12 is disengaged, The seams on both sides will shift as much as the bobbin thread Yp ₂ is dragged in, making them less noticeable.

C. Effects of the invention Since this invention is configured as explained above, it produces the following effects.

That is, a sufficient amount of displacement between both threads can be ensured, and therefore, the seam becomes less noticeable.

In addition, the amount of shifting of both threads can be adjusted depending on the yarn type, and since the thread shifting device is deactivated except when splicing threads, the winding conditions for both threads can be made the same. .

[Brief explanation of the drawing]

Figure 1 is a schematic front view of the double yarn splicer, Figure 2 is a perspective view of the yarn shifting device, Figure 3 is a cross-sectional view of the knob, and Figure 4 shows how the yarn joints are shifted by using the yarn shifting device. It is a figure explaining a situation. 1...Double yarn splicer, 2...Suction pipe, 3...Suction mouth, 10...
...Thread shifting device, 11...Fixed guide, 12...
Thread presser lever, 15... Thread presser lever operating cam, 16... Cam for setting displacement dimension, Yn ₁ , Yn ₂
... Upper thread, Yp ₁ , Yp ₂ ... Lower thread.

Claims (1)

[Scope of utility model registration request] A thread splicing device equipped with a thread shifting device 10 having a thread holding lever 12 that operates when splicing two threads together and winding them into a package cage, and can shift one thread relative to the other thread. Device.