Cloth feeding mechanism with stitch length adjusting function

Abstract

The invention provides a cloth feeding mechanism with a stitch length adjusting function. The cloth feeding mechanism comprises a main shaft and a cloth feeding shaft parallel to the main shaft. The main shaft is eccentrically sleeved with a cloth feeding connecting rod, and the end, away from the main shaft, of the cloth feeding connecting rod is hinged to the end of a first small connecting rod and the end of a second small connecting rod through a cloth feeding connecting rod pin. The end, away from the cloth feeding connecting rod pin, of the first small connecting rod is hinged to one end of a stitch length swing rod, a rotating shaft parallel to the main shaft is arranged in the middle of the stitch length swing rod, the stitch length swing rod is further connected with a stitch length adjusting component, and the stitch length adjusting component drives the stitch length swing rod to rotate around the rotating shaft of the stitch length swing rod. The end, away from the cloth feeding connecting rod pin, of the second small connecting rod is hinged to the end of a cloth feeding swing rod, the cloth feeding swing rod is fixed to the cloth feeding shaft, the cloth feeding shaft is further fixedly sleeved with a cloth feeding crank, the cloth feeding crank is connected with a main cloth feeding dog frame through a connecting rod, and the main cloth feeding dog frame is fixedly connected with a main cloth feeding dog and moves back and forth in the direction parallel to the extending direction of the main cloth feeding dog under driving of the cloth feeding crank.

Description

technical field [0001] The invention relates to a cloth feeding mechanism with the needle distance adjustment function. Background technique [0002] The cloth feeding mechanism of the traditional industrial high-speed overlock sewing machine, the important part of the cloth feeding assembly contains many parts with a relatively complex structure, the processing cost is high, and the needle distance adjustment method corresponding to this structure is cumbersome, and it is necessary to press and hold the needle in advance Twist the shaft so that it catches the needle distance eccentric wheel in the cloth feeding assembly, and then turn the handwheel to achieve the purpose of adjusting the needle distance. Contents of the invention [0003] In view of the above-mentioned shortcomings of the prior art, the object of the present invention is to provide a cloth feeding mechanism with a needle pitch adjustment function, which has a simple structure and is convenient for adjusti...

AI Technical Summary

Problems solved by technology

[0002] The cloth feeding mechanism of the traditional industrial high-speed overlock sewing machine, the important part of the cloth feeding assembly contains many parts with a relatively complex structure, the processing cost is high, and the needle distance adjustment method corresponding to this structure is cumbersome, and it is necessary to press and hold the needle in advance Twist the shaft so that it catches the needle distance eccentric wheel in the cloth feeding assembly, and then turn the handwheel to achieve the purpose of adjusting the needle distance

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