Cloth expanding device of warp knitting machine

Abstract

The invention discloses a cloth expanding device of a warp knitting machine. The device comprises at least one roll shaft and wall boards, wherein the roll shaft is arranged between a warp knitting machine looping mechanism and a fabric pulling and winding mechanism; the wall boards are arranged on two sides of the roll shaft and used for rotationally supporting the roll shaft; and a right-hand sawtooth shaped thread and a left-hand sawtooth shaped thread, which are oppositely arranged on the left and right in the axis direction, are arranged at the outer circumferential surface of the roll shaft. The right-hand and left-hand sawtooth shaped threads are oppositely arranged on the left and right in the axis direction of the roll shaft and symmetrically arranged at the outer circumferential surface of the roll shaft. A pitch L between the right-hand and left-hand sawtooth shaped threads is preferably 10 mm, the tooth depth H is preferably 1.5 mm and the number of the threads is preferably 4. The cloth expanding device disclosed by the invention has the advantages of simple structure, high cloth winding quality and suitability for being promoted in the warp knitting machines; and the shrinking phenomenon of the fabric cloth after being knitted in rings can be eliminated so that the fabric satisfies the technological requirements before being wound.

Description

technical field [0001] The invention relates to a cloth spreading device, in particular to a cloth spreading device used on a warp knitting machine for eliminating the shrinkage of the fabric surface. Background technique [0002] Existing warp knitting machine is when working, and the fabric formed after the yarn is looped and woven by the loop forming mechanism is drawn and wound into a cloth roll by the pulling and winding mechanism. However, the cloth surface of the fabric after knitting in a loop is often tightened, and the fabric with a tight cloth surface not only does not meet the technical requirements, but also has a large deformation after being wound into a cloth roll, which seriously affects the quality and quality of the cloth roll. The quality of the subsequent process. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a warp knitting machine spreading device that can eliminate the shrinkage phenome...

AI Technical Summary

Problems solved by technology

However, the cloth surface of the fabric after knitting in a loop is often tightened, and the fabric with a tight cloth surface not only does not meet the technical requirements, but also has a large deformation after being wound into a cloth roll, which seriously affects the quality and quality of the cloth roll. Subsequent process quality

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