Automatic trimming assembly on chain sewing machine

The utility model discloses an automatic trimming assembly on chain sewing machine, which comprises a bod, be provided with electro -magnet no. 1, electro -magnet no. 2 on the organism, go up thread releasing device, thread releasing device and trimming ware down, the electro -magnet is in a row in contact with thread releasing device, be connected respectively with down by thread releasing device and trimming ware through the transfer line for electro -magnet no. 2, trimming ware and thread releasing device linkage cooperation down. The advantage is: the utility model has the advantages of simple structure, control last thread releasing device respectively and descend thread releasing device to carry out automatic tension releasing through electro -magnet no. 1 and electro -magnet no. 2 to carry out automatic trimming through the trimming ware, compare its current intensity of labour that can effectively improve work efficiency and reduce the workman like this.