Splitting circular knife and splitting machine

Abstract

A splitting circular knife comprises a circular knife body and knife teeth distributed on the periphery of the circular knife body; each knife tooth comprises two opposite side faces and two opposite end faces; the side face and the end face of each knife tooth are intersected at the peak of the knife tooth; edges of the two end faces of the knife tooth are distributed symmetrically through the straight line between the peak of the corresponding knife tooth and the midpoint of the axle wire of the knife body; and edges of the two side faces of the knife tooth are distributed symmetrically as per the straight line between the peak of the corresponding knife tooth and the midpoint of the axle wire of the knife body. The invention further provides a splitting machine with the splitting circular knife. Due to unique design of the knife teeth of the splitting circular knife, no burrs are generated in splitting thin materials, which reduces the loss and facilitates subsequent process of the thin materials.

Description

technical field [0001] The invention relates to a cutting device, in particular to a slitting circular knife for cutting flexible materials and a slitting machine with the slitting circular knife. Background technique [0002] At present, the width of the base paper produced by the paper machine is relatively large, and some are as wide as nearly ten meters. However, after the paper web is produced, in the subsequent processing process, due to the influence of the size of the subsequent processing machine, the paper mill needs to cut the larger-width paper roll into several smaller-width paper rolls. Moreover, the paper width of the finished paper is much smaller than that of these paper rolls, so the paper rolls also need to be cut. In these slitting processes, slitting machines are used. [0003] Slitting machines for cutting paper, film and other materials have been widely used. However, cutting tissue paper is special, because tissue paper is crepe paper, which is rel...

AI Technical Summary

Problems solved by technology

Although the currently used slitting circular knife can successfully cut the base paper used as household paper, it often tears the cutting part of the base paper and produces burrs, which increases the processing difficulty and loss of the base paper.

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