A differential type adjustable cloth feeding dog device for a lockstitch machine

Abstract

A differential adjustable cloth feed dog device for a lockstitch sewing machine, including a cloth feeding platform (1), characterized in that: the cloth feeding platform (1) is provided with a sliding notch (2) that runs through it, and the sliding slot A sliding guide (3) is horizontally fixed directly below the mouth (2), and a reciprocating seat (4) is installed on the sliding guide (3), and the reciprocating seat (4) is distributed along the sliding notch (2), The reciprocating seat (4) is connected with the cloth feeding platform (1) or the sliding guide (3) through the reciprocating driving device. A plurality of feeding dogs (7) are installed at equal intervals on the dog mounting frame (5). The invention has a compact structure and effectively solves the long-standing technical problems of the existing feeding dog devices, and there will be no deviation during the feeding process. The situation, effectively avoiding the damage to the cloth, the degree of automation is high, and the processing efficiency has also been improved.

Description

technical field [0001] The invention relates to a cloth feeding dog device, in particular to a differential adjustable cloth feeding dog device of a lockstitch sewing machine, which belongs to the technical field of cloth processing equipment. Background technique [0002] The cloth feed dog device is a commonly used auxiliary equipment in large-scale garment production and processing, especially in the factory mass production, it is necessary to quickly and timely feed the sewing cloth. The traditional cloth feed dog device has a simple structure and generally includes a frame , cloth feed dog, cloth feed crank and tooth lifting crank and other components. The existing cloth feed dog is set on the top of the frame body, the cloth feed crank and the tooth lift crank will drive the cloth feed dog to make a circular motion, and the cloth feed dog will feed the sewing cloth forward while doing the circular motion. The friction between the teeth and the cloth moves the cloth fo...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to aim at the simple structure of the existing cloth feeding dog device, the feeding track of the cloth is an arc track, the frictional contact area between the cloth feeding dog and the cloth is small, the frictional contact time is short, and the feeding of the cloth is relatively short. The stability is not good, the smoothness is not high, the deviation is easy to occur during the feeding process, and there is a certain damage to the cloth, and the wear of the cloth feeding dog itself is also relatively fast. Now we provide a compact structure, The working mode and running track of the feed dog are changed, and the frictional contact area between the feed dog and the material is larger, which avoids the sliding friction between the feed dog and the material to the greatest extent, and at the same time realizes horizontal straight-line feeding and contact with the material Non-contact reset, the feeding stability of the cloth is good, the smoothness is high, and there will be no deviation during the feeding process, effectively avoiding damage to the cloth, a lockstitch sewing machine with a high degree of automation is differentially adjustable Feed dog device

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