Method and device for processing multi-head laser disordered and textured roller surface

Abstract

The invention relates to a method and a device for processing a multi-head laser disordered and textured roller surface. The method comprises the steps: controlling each pulse laser device to generate a plurality of disordered pulse laser beams by a plurality of random signal generators, and processing a plurality of spiral lines without an overlapped track on the roller surface after focusing, wherein the distance between two adjacent spiral lines is smaller than 150% of a diameter value of a laser speckle; a helical pitch of the spiral line is equal to a numerical value obtained from the distance between the adjacent spiral lines multiplied by quantity of the spiral lines, and the pulse laser device follows a random variable emitted by each random signal generator and changes the duty ratio and frequency of each laser pulse beam at random. The processing device comprises a numerical control roller machine tool, a plurality of lasers and a plurality of laser processing heads; and axial uniform movement are carried out by the the laser processing heads along a lateral bus of the roller. By the scheme, the roller which really accords with disordered requirements can be manufactured; the method for processing the roller surface by laser has the advantages of high disordered rough surface hardness and low production cost without pollution, and the steel quantity of the roller is greatly improved.

Description

technical field [0001] The invention relates to a processing method and processing equipment for texturizing the surface of a roll, in particular to a processing method and processing equipment for a multi-head laser random texturizing roll surface capable of producing various random texturing "spots". Background technique [0002] In the current industrial production of steel and non-ferrous metals, there are three commonly used methods for producing textured cold-rolled sheets. The first type uses shot peening technology to texture the rolls, and then chrome-plates their surfaces for rolling strips. ; The second category uses EDM technology to roughen the rolls, and then chrome-plates their surfaces for rolling strips; the third category uses laser technology to roughen the rolls and directly uses them for rolling strips. [0003] Because chrome plating pollutes the environment very much, most manufacturers omit the surface chrome plating process, directly use shot peen...

AI Technical Summary

Problems solved by technology

The current automotive panels and panels of high-end home appliances not only have requirements for the mechanical properties of the steel plate, but also have requirements for the appearance of the steel plate surface. The laser-ordered textured plate has a uniform appearance and arrangement of the textured "dots". Under the illumination of the light, the board reflects strongly at certain angles, which finally leads to different reflection effects when observing the board surface from different angles

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