A wide edge folding device

Abstract

The invention discloses a wide selvedge tucking device, comprising a housing, a crotch needle mechanism and a waste selvage scissors mechanism; the crotch needle mechanism is composed of a transmission mechanism and a crotch needle device, the transmission mechanism is arranged inside the housing, the waste selvage scissors mechanism is arranged below the crotch needle device, the crotch needle mechanism comprises a crotch needle, a first L-shaped rocking arm, a link, a second L-shaped rocking arm, a short shaft, a crotch needle seat, arch notches, an arc rail plate, an arc rail, a limiting screw, a wear plate, a buffer limiting bolt, a buffer wheel and an extended hole; a first output shaft of the transmission mechanism is fixedly connected with a corner of the first L-shaped rocking arm, one end of the first L-shaped rocking arm is movably connected with one end of the link through a joint bearing, and the other end of the link is movably connected with a second L-shaped rocking arm through a joint bearing. Compared with traditional crotch needle mechanisms, the wide selvedge tucking device has larger rocking radius of a crotch needle, smaller rocking angle of the crotch needle and smaller angular speed, and is suitable particularly for the weaving of wide-selvedge-tucked fabric.

Description

technical field [0001] The invention relates to the technical field of textile equipment, in particular to a wide-edge folding device. Background technique [0002] During weaving, the tuck-in device cooperates with the telescopic swing of the scrap edge scissors mechanism through the telescopic swing movement of the crochet rod to form a yarn holding, yarn cutting, yarn hooking and folding action. In this process, firstly, the top pressing block at the front end of the telescopic rod of the crochet hook opens the thread clamping opening of the lower clamping lifting rod, the waste scissors stretch out the clamping stutter to catch the previous weft and weft yarn, and the top pressing block releases the clamping opening to clamp the weft yarn, and then the upper and lower scissors The pieces make relative motion to cut the weft yarn, and then the crochet needle passes through the upper warp yarn and passes behind the clamping seat. The clamping seat is lifted up and retracte...

AI Technical Summary

Problems solved by technology

[0003] The crochet hook rotation radius of the existing folding-in edge device is small, which cannot meet the requirement of 20-45mm edge width for fabrics such as sunshade nets, fishing nets, and fruit plastic mesh bags.

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