Laser method and device for boring dense micropore on leather

Abstract

The invention discloses a dense micropore laser punching method and device of leather, which comprises the following parts: laser, rotary prism and integral punching head with reflector and focal lens, wherein the integral punching head can punch micropore continuously, which is divided into multiple pulse laser beam; the continuous laser outputs laser, which reflects scanning laser within certain angle into parallel laser within certain space; the parallel laser is focused into pulse focal array, which can punch hole on the leather.

Description

Technical field [0001] The invention belongs to laser processing technology, and in particular relates to a method and device for high-speed processing dense micropores on leather materials by using laser, which can be used in the fields of laser preparation of leather air holes and the like. Background technique [0002] Leather products are necessary in people's daily life, and the application range of leather can be greatly increased by preparing fine air holes on leather products to improve the air permeability of leather. [0003] The preparation of dense air-permeable micropores in leather materials can be processed by laser. The characteristic of this type of processing is that the pulsed laser is used to focus on the surface of the material, and the high energy density of the laser is used to melt and vaporize the material to prepare micropores. Since the microholes are prepared on the leather material, the energy required for each laser pulse is generally very low;...

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Problems solved by technology

However, the feature of the above-mentioned patent application is that the laser beam is scanned through multiple separate focusing heads sequentially through the polygon mirror, so it is inevitable that a part of the laser energy is scanned between the focusing heads, resulting in energy loss; in addition, because the volume of the focusing head is generally not too small, Therefore, the distance between the focusing heads should not be too small, so that when the holes or pits are required to be very dense, it will be difficult to adopt the above-mentioned technology; the final system is generally relatively large

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