Shearing device for embroidery machine
A technology for machine thread trimming and embroidery machine, applied in the field of embroidery machine thread trimming devices, can solve the problems of lower product quality, higher rejection rate, lower production efficiency and the like
Active Publication Date: 2014-06-25
FUJIAN YONGXIN NUMERICAL CONTROL TECH
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Problems solved by technology
Because the fabric is made of multi-layer thick material or leather fabric, the embroidery thread is thick and requires a high tension of the thread. When the thread is divided or hooked, the thread often cannot be hooked or the thread is hooked, resulting in unstable thread trimming and making the embroidered Product quality declines, scrap rate increases, and production efficiency decreases
Method used
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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[0021] refer to figure 1 , figure 2 and image 3 As shown, an embroidery machine thread trimming device includes a lower shaft 3 horizontally arranged on the embroidery machine frame 1, a thread trimming cam 4 arranged on the lower shaft 3, a scissors mechanism, and a thread trimming cam 4. scissor drive mechanism.
[0022] The scissors mechanism includes a movable knife seat 511 arranged on the frame 1, a rotating seat 51 which is rotatably arranged on the movable knife seat 511 around the center, fixedly arranged on the rotating seat 51 and can rotate around its center of circle with the rotating seat 51 The arc-shaped movable knife 52 and the fixed knife 53 that can be matched with the arc-shaped movable knife 52 are fixed on the frame 1 by the fixed knife seat 531. The front end of the movable knife 52 is formed with a hook line angle 522 and a line dividing angle 521 extending along the direction of rotation of the movable knife 52, and a thread cutting edge 524 is fo...
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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The invention relates to a shearing device for an embroidery machine, which comprises a lower shaft horizontally arranged on the embroidery machine frame, a shearing cam and a scissor mechanism which are arranged on the lower shaft, and a scissor driving mechanism matched with the shearing cam, wherein the scissor mechanism comprises a rotating base which is arranged on the frame and can rotate around the center, a cambered movable knife which is fixedly arranged on the rotating base and can rotate around the center of circle along with the rotating base, and a fixed knife which is fixed on the frame and can be matched with the cambered movable knife; a thread hooking corner and a thread separating corner which extend in the rotating direction of the movable knife are formed at the front end of the movable knife; a shearing knife edge is formed between the thread hooking corner and the thread separating corner; and the scissor driving mechanism is used for driving the rotating base to rotate, so that the movable knife can rotate between the stand-by station and the shearing position. The invention can shear thick threads, and the cross section of the thread is flat and is not fluffy.
Description
technical field [0001] The invention relates to a thread trimmer for an embroidery machine. Background technique [0002] The traditional thread trimmer of the embroidery machine uses a knife similar to a fishtail, and the fixed knife and the movable knife are normally closed. When the movable knife is out of the knife, the tail hook divides the thread on the needle to the back, and when the knife is returned, the front hook guides the thread on the cloth into the knife edge, and the movable knife and the fixed knife are closed to cut it short. Because the fabric is made of multi-layer thick material or leather fabric, the embroidery thread is thick and requires a high tension of the thread. When the thread is divided or hooked, the thread often cannot be hooked or the thread is hooked, resulting in unstable thread trimming and making the embroidered Product quality declines, scrap rate increases, and production efficiency decreases. Contents of the invention [0003] 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): D05C11/20
Inventor 林辉煌林逢春杨绳刚纪金用林金练黄进伟
Owner FUJIAN YONGXIN NUMERICAL CONTROL TECH