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Automatic thread cutting device in multi-needle machine

A multi-needle machine and automatic technology, applied in the field of machinery, can solve the problems of deviation between the actual sliding track of the movable knife and the predetermined track, the influence of the accuracy of the tangent process, and the failure of tangent, so as to achieve uniform force, prevent up and down jumping, and restore accuracy. Effect

Active Publication Date: 2010-04-21
浙江振盛缝制机械有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This structure has some defects. When the thread cutting device works for a long time, the contact surface will be worn, which will cause the actual sliding track of the movable knife to deviate from the predetermined track, which will affect the accuracy of the thread cutting process and may lead to thread cutting failure.

Method used

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  • Automatic thread cutting device in multi-needle machine
  • Automatic thread cutting device in multi-needle machine
  • Automatic thread cutting device in multi-needle machine

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Embodiment Construction

[0026] The following are specific embodiments of the present invention and in conjunction with the accompanying drawings, the technical solutions of the present invention are further described, but the present invention is not limited to these embodiments.

[0027] like figure 1 and figure 2 and image 3 As shown, the automatic thread cutting device in the multi-needle machine is arranged at the machine head of the multi-needle machine, including the needle plate pad 1 and the movable knife rest 2 arranged on the needle plate pad 1, and the needle plate pad 1 is horizontally fixed with Be the fixed knife 3 of strip shape. Movable knife rest 2 is fixedly provided with several movable knives 4, and the quantity of movable knives 4 is 8 to 12 in the present embodiment, but as another kind of scheme, the quantity of movable knives 4 also can be other numerical value, movable knife 4 Be fixed on the movable knife rest 2 successively. The movable knife rest 2 is connected with ...

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Abstract

The invention provides an automatic thread cutting device in a multi-needle machine, which belongs to the technical field of machines. The invention solves the technical problems of low guide precision of a movable blade, poor stability of thread cutting and the like in the traditional thread cutting devices of multi-needle machines. The automatic thread cutting device arranged at the needle head of the multi-needle machine comprises a needle plate pad and a movable blade holder arranged on the needle plate pad, wherein a fixed blade is fixed on the needle plate pad and a plurality of movable blades are fixed on the movable blade holder. The movable blade holder is connected with a driving mechanism, a guide mechanism which enables the movable blade holder to slide in the plane direction under the driving of the driving mechanism is arranged on the needle plate pad, and the sliding of the movable blade holder enables the movable blades to be in a position tangental to the fixed blade. The automatic thread cutting device ensures that the movable blade holder is more stable and precise in sliding, and enhances the stability of thread cutting.

Description

technical field [0001] The invention belongs to the technical field of machinery and relates to an automatic thread cutting device in a multi-needle machine. Background technique [0002] The sewing machinery industry is an extremely competitive industry. The manufacturers of sewing machines from abroad all set up factories in China, which makes it difficult for domestic enterprises with weaker strength to survive and develop, and also makes the profit margins of enterprises smaller and smaller. In this case, to not be eliminated and to seek development while surviving, it is necessary to continuously seek technological innovation on the original basis and improve the competitiveness of products. The same is true for the multi-needle machine series in the sewing machine family. [0003] A multi-needle machine is a sewing machine that can sew several lines of stitches at the same time. It has multiple needles, and the corresponding needle threads are also conveyed at the sam...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D05B65/00D05B65/06
Inventor 董伟弦
Owner 浙江振盛缝制机械有限公司
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