Zipper cutting-off mechanism

Abstract

The invention discloses a zipper cut-off mechanism, comprising a fixed arranged mold, an ultrasonic wave head which is on the same axis with the mold and can do reciprocal motion, an ultrasonic generator which is electrically connected with the ultrasonic wave head; a bulge which is arranged on the working surface of the mold corresponding to the working end surface of the ultrasonic wave head, the peak of the bulge is arranged as a blade; when the distance between the ultrasonic wave head and the mold is minimum, a gap kept between the bulge of the mold and the ultrasonic wave head is smaller than the thickness of a zipper cotton tape. The invention is characterized in that the structure is simple, the property is stable, the operation is convenient, and the invention is suitable for various zipper cut-off, punch mechanisms or cloth fabric cut-off, punch mechanisms.

Description

technical field [0001] The invention relates to the field of zipper production devices, in particular to a zipper cutting mechanism. Background technique [0002] At present, in the zipper manufacturing process, the zipper tape is cut by mechanical shearing, but it is prone to quality problems such as off-line, so someone has proposed a device that uses ultrasonic technology to cut the zipper: such as Chinese patent ZL03219427.7, named "zipper "Cutting mechanism" discloses a zipper cutting mechanism, including a cylinder, a connector, a cutting knife, an ultrasonic head serving as a backing plate, and an electrical control device for controlling the action of the ultrasonic head. The cutting knife is fixedly connected to the piston rod of the cylinder through the connector, and the ultrasonic head is installed directly below the cutting knife. This technology uses an ultrasonic head as a heating, fusion, and cutting device, so that the cutting part of the zipper is heated i...

AI Technical Summary

Problems solved by technology

This technology uses an ultrasonic head as a heating, fusing, and cutting device, so that the cutting part of the zipper is heated instantaneously, the zipper is melted and cut, and the fibers at the incision are bonded together due to high temperature melting and will not be off-line. However, this technical solution does not consider cutting The stroke range of the knife moving up and down does not consider the impact of the thickness of the cut zipper on the safety of the machine, so the cutting knife is easy to mechanically collide with the ultrasonic backing plate, the cutting knife is worn or even broken, and the ultrasonic backing plate is also easily damaged. Increase production cost and maintenance cost

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