Joint debugging mechanism, sewing machine and sewing machine joint debugging method
A technology for sewing machines and adjustment mechanisms, which is applied to sewing machine components, sewing equipment, cloth feeding mechanisms, etc., and can solve the problems of complicated adjustment process, unfavorable convenience and low cost of sewing machines, etc.
Active Publication Date: 2022-06-17
JACK SEWING MASCH CO LTD
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- Description
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- Application Information
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Problems solved by technology
The adjustment mechanism of the existing cloth feed dog needs to be manually adjusted, and the adjustment process is relatively complicated, which is not conducive to the development of convenience and low cost of sewing machines
Method used
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[0068] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, and do not limit the protection scope of the present invention.
[0069] It should be noted that when a component is referred to as being "mounted on" another component, it can be directly on the other component or there may also be an intervening component. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a co-existing centered component. When a component is said to be "fixed" to another component, it may be directly fixed to the other component or there may also be an intervening component. The terms "vertical", "horizontal", "left", "right" ...
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The invention relates to a joint debugging mechanism, a sewing machine and a sewing machine joint debugging method. A joint adjusting mechanism is used for adjusting a feed dog frame in a sewing machine and comprises a joint adjusting crank, a joint adjusting rod and a connecting rod, the first end of the joint adjusting crank is connected to the differential amount adjusting mechanism and adjusts the motion difference between the differential feed dog frame and the driving feed dog frame. The second end of the joint adjusting crank is selectively connected to the transmission assembly, the joint adjusting crank relieves the locking state between the transmission assembly and the main shaft, and the eccentricity between the transmission assembly and the main shaft can be changed by adjusting the angle of the main shaft, so that the motion amplitude of the feed dog frame is adjusted. According to the sewing machine, the joint adjusting mechanism is arranged, so that the difference between the two feed dog frames and the overall motion amplitude of the feed dog frames can be adjusted only by arranging one driving piece, meanwhile, the adjusting precision and convenience are improved, the production cost is reduced, and the possibility is provided for the overall miniaturization development of the sewing machine.
Description
technical field [0001] The invention relates to the technical field of sewing machine equipment, in particular to a joint adjustment mechanism, a sewing machine and a joint adjustment method for a sewing machine. Background technique [0002] According to different processes and product patterns, the flatness of the fabrics that need to be sewn is different, some require the fabrics to be flat, and some processes require the fabrics to be sewn with wrinkles, which requires adjustment of the main feed teeth and differential teeth in the sewing machine. Movement amount, that is, adjust the movement difference between the differential feed dog frame and the active dog frame in the cloth feed dog frame, so as to obtain the required stitch distance and flatness. [0003] When the sewing machine sews different fabrics, the required stitch length is different to maintain the flatness of the sewing. Therefore, it is necessary to adjust the overall feeding speed of the feeding dog, t...
Claims
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IPC IPC(8): D05B27/08
CPCD05B27/08
Inventor 朱赛瑞芈韶雷徐永明赵林蔚
Owner JACK SEWING MASCH CO LTD