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Yarn relaxation eliminating device used for spinning machine

A slack elimination device and slack elimination technology, which are applied to spinning machines, open-end spinning machines, and continuously wound spinning machines, etc., can solve the problems of complex structure of the slack elimination device, and achieve the effect of avoiding residual

Inactive Publication Date: 2007-08-22
MURATA MASCH LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, this slack eliminating device has a complex structure, because the slack eliminating roller includes a clutch mechanism or a mechanism for moving the reset pin back and forth.
In addition, the yarn may not be able to be smoothly wound around or unwound from the slack removal roller

Method used

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  • Yarn relaxation eliminating device used for spinning machine
  • Yarn relaxation eliminating device used for spinning machine
  • Yarn relaxation eliminating device used for spinning machine

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0023] Figures 1 to 7 show a first embodiment of the slack elimination device according to the present invention.

[0024] As shown in FIG. 1, the spinning machine 1 according to the embodiment of the present invention includes a spinning machine main body 2 having a plurality of spinning units U arranged side by side in a direction perpendicular to the drawing, and A working frame 3 for splicing yarns, the working frame 3 moves along the spinning machine main body 2 with the spinning devices U arranged side by side. Each spinning unit U consists of a drafting part 4, a spinning device 5, a yarn conveying part 6, a yarn suction device 7, a yarn cutter 8, a yarn defect detector 9, a yarn The tension adjusting device 11 and a winding device 12 are constituted, and the components are sequentially arranged along the yarn passage E from the upstream side to the downstream side. The work frame 3 is used to move and stay at a predetermined position of the spinning device U to complete th...

no. 2 example

[0043] Fig. 8 is a side view showing the main part of a second embodiment of a spinning machine including the yarn slack eliminating device according to the present invention. The alternate long and two short dashed lines L1 indicate that the slack eliminating roller 23 is eliminating slack from the yarn. The solid line L2 indicates that the yarn is being unwound from the slack eliminating roller 23. The alternate long and two short dashed lines L3 indicate that the yarn is moving, and its slack has not been eliminated by the slack eliminating roller 23.

[0044]The obvious difference between this embodiment and the first embodiment is that the slack elimination roller 23 is arranged such that its rotation center line A extends in the horizontal direction, and the yarn suction device 7, the yarn cutter 8 and the yarn defect detector 9 are all arranged It is downstream of the slack eliminating roller 23. Except for these points, the configuration of the present embodiment is basica...

no. 3 example

[0046] Figures 9 to 12 show a third embodiment of the yarn slack eliminating device according to the present invention. Fig. 9 is an enlarged side view showing the vicinity of the yarn slack eliminating device of the spinning machine. This figure shows a state observed immediately before the yarn is caught on the roller main body 51 of the slack eliminating roller 23. As shown in FIG. Fig. 10 is a plan view showing the slack eliminating roller 43 with a motor. The figure shows that the gripping unit 52 has moved backward. Fig. 11 is a main cross-sectional view taken along line XI-XI in Fig. 10. Fig. 12 shows a slack eliminating roller 43 with a motor. This figure shows that the gripping element 52 has been extended. Fig. 12A is a top view, and Fig. 12B is a front view.

[0047] The spinning machine 31 according to the present embodiment is different from the spinning machine 1 (see FIGS. 1 to 7) according to the first embodiment in the slack of the yarn slack eliminating device 40...

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Abstract

It is an object of the present invention to provide a spinning machine that enables the elimination of slack that may occur between a spinning device that spins a yarn and a winding device that winds a yarn. A yarn slack eliminating device for a spinning machine comprises a slack eliminating roller 23 arranged so as to engage with a yarn spun by a spinning device of the spinning machine and winding a yarn Y around its outer peripheral surface 23a, driving means 24 for rotatively driving the slack eliminating roller 23, and a downstream guide 26 arranged downstream of the slack eliminating roller 23 to guide the yarn Y on a centerline of rotation A of the slack eliminating roller 23. The yarn slack eliminating device supplies the yarn to a proximal end B of the outer peripheral surface 23a of the slack eliminating roller 23 and then winds the yarn Y around the proximal end B, and unwinds the wound yarn Y from the slack eliminating roller so that the unwinding starts with a leading end D of the slack eliminating roller and moves toward the downstream guide 26. An upstream guide 25 is arranged upstream of the slack eliminating roller and close to the proximal end B of the outer peripheral surface 23a of the slack eliminating roller.

Description

Technical field [0001] The invention relates to a slack eliminating device for a spinning machine, which is used to eliminate yarn slack that may occur between a spinning device that spun a spun yarn and a winding device that winds the yarn. Background technique [0002] In a high-speed spinning machine such as a pneumatic spinning machine, when a defective part of the yarn is detected, a yarn cutter is used to cut the defective part and then remove it. Then, the leading end of the yarn subsequently sent by the spinning device is spliced ​​onto the trailing end of the yarn wound into the package. This yarn splicing is performed when both yarn ends are stopped. Therefore, a suction tube called a "slack tube" is used to suck up the yarn subsequently sent from the spinning device to eliminate slack. However, the recent increase in spinning speed has increased the amount of yarn slack. This requires a longer suction tube, so the suction tube method has reached the limit of its capabi...

Claims

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Application Information

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IPC IPC(8): D01H1/36D01H15/00B65H67/08B65H51/22D01H4/48D01H13/10
CPCB65H2701/31B65H51/22D01H4/48D01H15/002
Inventor 平尾修马场健治
Owner MURATA MASCH LTD
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