Paper slitting device

Abstract

The invention relates to a paper slitting device. The device comprises a rack, an unwinding roller, a knife roller with a knife groove, a transverse rod, a knife disc arranged on the transverse rod, amain rotating roller, an auxiliary rotating roller, a motor and a winding roller; horizontal first sliding grooves higher than the main rotating roller are formed in the two sides of the rack correspondingly, and two first sliding blocks are embedded in each first sliding groove in a sliding mode; the first sliding block is provided with a limiting rod for limiting the falling of the paper roll;the first sliding block is further provided with a vertical groove for the limiting rod to slide up and down; square annular connecting frames allowing the two limiting rods on the same side to penetrate through are arranged on the two sides of the rack correspondingly, a plurality of inclined blocks are arranged on the lower inner walls of the connecting frames, and the heights of the inclined blocks are gradually increased towards the nearest ends of the connecting frames; a plurality of vertical plates are vertically arranged on the upper inner wall of the connecting frame, and the verticalplates and the inclined blocks are vertically arranged in a staggered mode to form a sawtooth-shaped channel. According to the scheme, a paper roll is ingeniously prevented from falling off from theposition between the main rotating roller and the auxiliary rotating roller, and smooth winding of raw paper is effectively guaranteed.

Description

technical field [0001] The invention relates to the technical field of paper production, in particular to a paper cutting device. Background technique [0002] The technological process of paper production is as follows: pulping→pulping→forming→drying→creping→rolling paper→base paper→rewinding. The rewinding includes three steps of unwinding the base paper, cutting the base paper and rolling up the base paper again. The function of rewinding mainly includes (1) cutting off the burrs of the base paper; (2) because the diameter and width of the base paper are large, the large roll of base paper can be cut into several rolls by a slitting device and rolled up again. Small paper rolls that meet the specifications are beneficial for subsequent processing to form finished products, and the most commonly used processing equipment in the rewinding process is the paper cutting device. [0003] Such as Figure 5 , shown in the figure is a paper cutting device, including a frame 1, a...

AI Technical Summary

Problems solved by technology

[0004] Although the above-mentioned paper slitting device has a simple structure and a simple operating principle, as the base paper rolls longer and longer, the diameter of the paper roll will become larger, which will lead to the gradual increase of the center of gravity of the paper roll. When the winding speed of the rotating roller is too fast, the paper roll will easily fall from the main rotating roller and the auxiliary rotating roller, thus affecting the winding of the base paper

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