a hook
A kind of technology of rotary hook and shuttle frame, which is applied to rotary hook. It can solve the problems of low efficiency of upper thread off-line, stuck thread, and easy machine failure, etc., to achieve the effect of simple structure, not easy to get stuck, and high off-line efficiency.
Active Publication Date: 2022-08-02
ZHONGSHAN YINUOTE INTELLIGENT TECH CO LTD
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- Application Information
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Problems solved by technology
In the prior art, during the relative rotation of the outer shuttle frame and the inner shuttle frame, the phenomenon of thread jamming is easy to occur, the machine is prone to failure, and the efficiency of the upper thread off-line is low
Method used
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[0025] In order to facilitate the understanding of those skilled in the art, the present invention will be further described below with reference to the embodiments and the accompanying drawings, and the contents mentioned in the embodiments are not intended to limit the present invention.
[0026] like Figure 1 to Figure 7 As shown, a rotary hook provided by the present invention includes an outer shuttle frame 3 and an inner shuttle frame 11, the outer side wall of the inner shuttle frame 11 is provided with a guide rail 12 arranged along its circumferential direction, the outer shuttle frame 3 It includes an outer shuttle body 31 and a pressing piece 2 connected to the outer shuttle body 31. The inner shuttle frame 11 is arranged in the outer shuttle body 31. The inner side wall of the outer shuttle body 31 is provided with a guide groove 32. The guide rail 12 Slidingly connected with the guide groove 32 , the pressing piece 2 is used to confine the guide rail 12 in the gu...
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The invention relates to the technical field of sewing machine accessories, in particular to a rotary hook, comprising an outer shuttle frame and an inner shuttle frame, the outer side wall of the inner shuttle frame is provided with a guide rail arranged along its circumferential direction, and the outer shuttle frame includes an outer shuttle main body and an inner shuttle frame. The pressing piece connected to the main body of the outer shuttle, the inner shuttle frame is arranged in the main body of the outer shuttle, the inner side wall of the main body of the outer shuttle is provided with a guide groove, the guide rail is slidably connected with the guide groove, the pressing piece is used to limit the guide rail in the guide groove, and the outer shuttle The main body is provided with a thread hooking point, the thread hooking point is concave with a thread letting position, and the thread letting position is located below the guide groove; the middle part of the outer shuttle main body is concavely provided with an installation cavity, the guide groove is communicated with the installation cavity, and the inner shuttle frame is accommodated in installed in the cavity. The structure of the present invention is simple, because the thread hooking tip is recessed with a thread release position for accommodating the upper thread, and the thread release position is located below the guide groove, so that the outer shuttle frame is not easy to catch the thread when it rotates relative to the inner shuttle frame. The work stability is good, the probability of the hook failure is reduced, the upper thread is moved to the bottom surface of the inner hook frame and the thread is released, and the thread release efficiency is high.
Description
technical field [0001] The invention relates to the technical field of sewing machine accessories, in particular to a rotary hook. Background technique [0002] The sewing machine hook is used to hook the upper thread on the sewing machine needle and rotate, and then go around the lower thread in the bobbin of the inner hook of the hook to form a stitch. The rotary hook is composed of the outer shuttle frame and the inner shuttle frame. The outer shuttle frame and the inner shuttle frame are matched by the guide groove in the outer shuttle frame and the guide rail on the inner shuttle frame. When working, the outer shuttle frame is on the inner shuttle frame. rotate. In the prior art, during the relative rotation of the outer shuttle frame and the inner shuttle frame, the phenomenon of thread jamming is likely to occur, the machine is prone to failure, and the upper thread removal efficiency is low. Therefore, the defects are very obvious, and there is an urgent need to pr...
Claims
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IPC IPC(8): D05B57/14
CPCD05B57/14
Inventor 林泽贤
Owner ZHONGSHAN YINUOTE INTELLIGENT TECH CO LTD