Novel connecting rod feeding backstitch structure of zigzag sewing machine
A sewing machine and connecting rod technology, which is applied to sewing machine components, sewing machine control devices, sewing equipment, etc., can solve the problems of low service life of parts, large friction of parts, complex structure, etc., so as to increase service life, reduce friction, and reduce processing. The effect of precision requirements
Pending Publication Date: 2021-02-26
浙江龙泰缝纫设备有限公司
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Problems solved by technology
[0003] The prior art has the following disadvantages: the existing zigzag sewing machine connecting rod feeding reverse sewing structure is relatively complicated, maintenance is inconvenient, the friction between parts in the connecting rod feeding reverse sewing structure is relatively large, and the service life of the parts is relatively low
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[0024] The following clearly and completely describes the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0025] see Figure 1-6 , the present invention provides a new type of connecting rod feeding reverse sewing structure for a zigzag sewing machine, including a driving mechanism, a step feeding mechanism, a tooth lifting mechanism and a reverse sewing mechanism;
[0026] The driving mechanism is used to drive the step-feeding mechanism and the tooth-lifting mechanism to move simultaneously, and the backstitching mechanism is arranged on the output end of the tooth-lifting mechanism; wherein, the back-stitching mechanism includes a ba...
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The invention discloses a novel connecting rod feeding backstitch structure of a zigzag sewing machine, and relates to the technical field of zigzag sewing machines. The novel connecting rod feeding backstitch structure comprises a driving mechanism, a step feeding mechanism, a tooth lifting mechanism and a backstitch mechanism, wherein an eccentric transmission wheel is arranged on the peripheralside of the front end of a main transmission shaft, a tooth lifting connecting rod and a step feeding connecting rod are arranged on the peripheral side of the eccentric transmission wheel, the stepfeeding connecting rod is hinged with a feeding adjusting seat group, a feeding connecting rod crank and a backstitching connecting rod are arranged on the feeding adjusting seat group, a backstitch crank and a stitch length adjusting shaft are arranged on the backstitch connecting rod, and the tooth lifting connecting rod is hinged with a tooth lifting connecting rod crank. According to the novelconnecting rod feeding backstitch structure, the stitch length requirement of backstitch can be met only by adjusting a stitch length adjuster, so that later maintenance is facilitated; the stitch length adjuster and the feeding adjusting seat group are connected through the backstitch connecting rod, so that the structure is simplified, the friction among parts is reduced, the noise is reduced,the service life of the parts is prolonged, the original backstitch connecting mode is simplified, and the installation is simple and convenient.
Description
technical field [0001] The invention relates to the technical field of zigzag sewing machines, in particular to a novel connecting rod feed reverse sewing structure of zigzag sewing machines. Background technique [0002] A sewing machine is a machine that uses one or more sewing threads to form one or more stitches on the sewing material to interweave or sew one or more layers of sewing material. The sewing machine can sew fabrics such as cotton, fiber crops, silk, wool, and artificial fibers, and products such as leather, plastics, and paper. Zigzag sewing machine is a special sewing machine for sewing machines, also known as zigzag sewing machine or herringbone sewing, which is used for zigzag sewing with certain elastic stitches. There are generally two kinds of reverse sewing mechanisms on the machine, one is to manually drive the reverse sewing mechanism through the reverse sewing wrench to realize the reverse sewing, and the other is to drive the reverse sewing mecha...
Claims
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IPC IPC(8): D05B69/14D05B69/20
CPCD05B69/14D05B69/20
Inventor 朱广运朱龙明卢委丽王健
Owner 浙江龙泰缝纫设备有限公司