Single-rotary-cutter transverse cutting device

Abstract

The invention provides a single-rotary-cutter transverse cutting device, which comprises a machine frame, an upper cutter roller, an upper cutter blade, an upper cutter roller bearing seat and a lower cutter blade, wherein the machine frame is arranged at the two sides, the lower cutter blade is arranged on a lower cutter seat, the upper cutter blade is arranged on the upper cutter roller in an Archimedean spiral surface form. The single-rotary-cutter transverse cutting device is characterized in that the lower cutter blade is vertically arranged on the lower cutter seat and forms a section of horizontal distance with a vertical center line of the upper cutter roller, in addition, the position deviates to the cut material entering side, and in the shearing moment, the cutting edge and the front cutter side of the upper cutter blade form the shearing at the front cutter side of the lower cutter blade. The vertical moving component of the front cutter side of the upper cutter blade forms the shearing with the front cutter side of the lower cutter blade, the upper cutter blade and the lower cutter blade form a vertical cut, and the formed shearing force is basically vertical to the instant moving direction of the cutting edge of the upper cutter blade. On the premise of ensuring a simple structure, low manufacturing cost and low use cost in the prior art, the influence of the shearing force on the cutter roller operation is reduced, the vibration is reduced, and the work stability and the transverse cutting quality are improved.

Description

technical field [0001] The invention relates to the technical field of paper cutters and cross-cutting machines, in particular to a single-rotary knife cross-cutting device. Background technique [0002] The existing machine that cuts roll paper (or roll thin soft material) into paper sheets is called a paper cutter. Among them, the cross-cutting device is one of the most critical parts of the machine, and its design structure and manufacturing quality are related to the performance and level of the whole machine. There are two types of high-level machines popular in the market at present, single rotary knife paper cutter and double rotary knife paper cutter. The advantages of the double-rotary knife paper cutter are that the cutting quality of the paper is excellent, the precision of the paper cutting is high, and the running speed is high. Its disadvantages are high complexity, difficulty, and high cost of manufacture, and the use of high-power servo motors to drive the ...

AI Technical Summary

Problems solved by technology

The main defect of this structure is that the shear resistance is opposite to the instantaneous movement direction of the blade, and the blade cannot be installed vertically, resulting in large shear resistance and large shear vibration, which affects the quality and accuracy of the cut and the improvement of speed and load capacity

Due to the installation angle of the lower knife, the incision is at an angle of about 45 degrees to the paper surface, which is not suitable for cutting thicker materials

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