Thread grasping mechanism
A technique of thread grasping and pressing mechanism, applied in the field of sewing machines, can solve the problems of detachment and poor thread clamping effect, and achieve the effect of improving the thread clamping effect.
Active Publication Date: 2017-01-11
ZHEJIANG ZOJE SEWING MACHINE
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Problems solved by technology
[0004] The above-mentioned clamping device can catch and clamp the end of the upper thread before sewing, thereby preventing the generation of bird's nest structure, but the hook knife and the upper blade and the lower blade Only relying on the elastic force to clamp the upper thread, the clamping effect is not good, and when the upper thread sewing machine is subjected to a large pulling force when sewing, it is easy to fall out of the thread clamping device
Method used
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Embodiment 1
[0041] Such as Figure 1-Figure 9 As shown, a thread grabbing mechanism 3 is fixed on the casing of the machine head 1, and includes a fixed plate 10, a limit plate 4, a thread grabbing hook 7, a lower splint 6, a driving mechanism 8 and a pressurizing mechanism 5. The side of the limiting plate 4 has a positioning portion 4a, and the positioning portion 4a is fixedly connected with the fixing plate 10 . A front screw 11 and a rear screw 12 are arranged between the positioning part 4a and the fixing plate 10, and a front connecting hole 4a1 and a rear connecting hole 4a2 are sequentially arranged on the positioning part 4a from front to back, the front connecting hole 4a1 is an arc-shaped hole, and the rear connection The hole 4a2 is a circular hole, the front screw 11 is fixedly connected to the fixing plate 10 through the front connecting hole 4a1, and the rear screw 12 is fixedly connected to the fixing plate 10 through the rear connecting hole 4a2. The installation angle ...
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The invention provides a thread grasping mechanism, belongs to the technical field of sewing machines and solves the problems of poor thread clamping effect and the like of existing thread grasping mechanisms. The thread grasping mechanism comprises a limit board, wherein a lower clamping board is fixed at the front end of the limit board, a thread grasping hook is arranged between the limit board and the lower clamping board, a thread hooking part is arranged at the front end of the thread grasping hook, the lower surface of the thread hooking part cooperates with the upper surface of the lower clamping board, and upper threads can be clamped; a drive mechanism capable of driving the thread grasping hook to slide front and back is connected to the thread grasping hook; a thread clamping part is arranged at the front end of the lower clamping board, a thread tightening part bulging downwards is arranged on the lower surface of the front end of the thread hooking part, and the thread clamping part cooperates with the thread tightening part, so that the upper threads can be clamped. The thread grasping mechanism has the advantages of good thread clamping effect and the like.
Description
technical field [0001] The invention belongs to the technical field of sewing machines and relates to a thread grabbing mechanism. Background technique [0002] A sewing machine is a machine that sews sewing materials by sutures, including a needle bar mechanism, a thread take-up mechanism, a feeding mechanism, a thread hook mechanism, a pressing mechanism, a winding device, and a lubricating device. Sewing machines can be divided into lockstitch sewing machines, chain sewing machines, overlock sewing machines, buttonhole machines and sealing machines according to the structure or sewing process. The suture thread includes the needle thread passing through the needle hole and the shuttle thread drawn from the bobbin, wherein the needle thread is also called the upper thread, and the shuttle thread is also called the bottom thread. The upper thread is led out from the thread barrel through the thread tensioner, thread slowing lever, right thread hook and other components, th...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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IPC IPC(8): D05B65/06
CPCD05B65/06
Inventor 易相瑞鲍增金严海军李健鹏黄贤木楼俏军
Owner ZHEJIANG ZOJE SEWING MACHINE