A paper cutter for precisely controlling the length of paper

Abstract

The invention discloses a paper cutter capable of accurately controlling length of paper. The paper cutter capable of accurately controlling length of paper comprises a shearing device. The shearing device comprises a shearing platform, a material grasping shaft, a pressurization shaft I and a cutting tool, wherein the material grasping shaft, the pressurization shaft I and the cutting tool are arranged on the shearing platform, the cutting tool is located above the shearing platform, a rolling surface of the pressurization shaft I and a rolling surface of the material grasping shaft have interactional contact pressure, and the material grasping shaft is arranged at the end of the shearing platform. The shearing device is further provided with a material grasping motor and a control module, wherein the material grasping motor is a stepping motor or a servo motor, the material grasping motor is used for driving the material grasping shaft to rotate, and the control module controls the material grasping motor and the cutting tool. The control module starts the cutting tool to carry out cutting operation after enabling the material grasping motor to rotate by certain-angle displacement, and the influence of adverse factors in the prior art that tension is not uniform in the conveying process of paper, and forward inertia or lag dragging force exists can be avoided.

Description

technical field [0001] The invention relates to a paper cutter for precisely controlling the length of paper, belonging to the technical field of industrial cutting equipment. Background technique [0002] In order to reduce the amount of leftovers in the production process of copper clad laminates and to facilitate the operation of automatic equipment in the intermediate process, it is necessary to make the dimensions of each copper clad laminate consistent as much as possible. Therefore, raw materials such as glass cloth or fiber paper as reinforcing materials are distributed When cutting, its size control requirements are more stringent. Paper-based copper-clad laminates use fiber paper as a reinforcing material, and the width of the rolled fiber paper raw material is more accurate and consistent. The paper cutter in the prior art has uneven tension, forward inertia or Due to the influence of unfavorable factors such as hysteresis pulling force, its ability to control th...

AI Technical Summary

Problems solved by technology

[0004] The present invention is aimed at the deficiencies of the prior art, and provides a paper cutter that precisely controls the length of the paper, which can overcome the disadvantages of the prior art such as uneven tension, forward inertia or lagging pulling force during the conveying process of the paper. factors, so as to control the paper cutting length more precisely; and through further improvement, the paper cutter has a self-check function, which can automatically detect and shut down when there is a fault or operation problem.

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