Laser-heating additive micro-nano rolling forming system and method

Abstract

The invention discloses a laser-heating additive micro-nano rolling forming system. The laser-heating additive micro-nano rolling forming system comprises a substrate which is unwound by an unwinding roller, a first traction roller, a tension roller, a deviation correction roller, a rolling impressing module, a surface treating device, a powder control device, an assistant pressing roller, an additive rolling module, a cooling roller, a second traction roller, a powder supply device and a winding roller, wherein the first traction roller, the tension roller, the deviation correction roller, the rolling impressing module, the surface treating device, the powder supply device, the assistant pressing roller, the additive rolling module, the cooling roller and the second traction roller are sequentially arranged on a rack, the substrate sequentially passes the first traction roller, the tension roller, the deviation correction roller, the rolling impressing module, the surface treating device, the powder supply device, the assistant pressing roller, the additive rolling module, the cooling roller and the second traction roller, the powder supply device is located between the surface treating device and the powder control device and makes powder fall on the substrate, the substrate is wound by the winding roller, through first lasers of the rolling impressing module, the substrate is heated to form microstructure characteristics on a surface of the substrate, under the action of the assistant pressing roller, rolling gaps of the additive rolling module are gradually filled with the powder material on the substrate, and the powder material melts after being heated by second lasers, is subjected to rolling forming, is embedded into the substrate, is then cooled by the cooling roller, and is subjected to demoulding to form a micro-nano structure array. According to the laser-heating additive micro-nano rolling forming system, laser non-contact heating is adopted, no heating rollers are needed, the controllability of thermal action is good, and the micro-nano structure precision is high.

Description

technical field [0001] The invention relates to the technical field of micro-nano manufacturing equipment, in particular to a laser heating and material-adding micro-nano roll forming system and method. Background technique [0002] In recent years, due to the rapid development of new energy and energy-saving technology, new media and information technology, polymer thin film devices with functional surface microstructures have attracted widespread attention in the industry due to their advantages such as low material cost, small thickness tolerance, and smooth surface. Thin film devices mainly include brightness enhancement film, diffusion film, reflective film, anchor film and antireflection film, etc. In addition to being used in industries such as liquid crystal displays, flexible displays, and electronic paper, the application scope of polymer thin film devices is constantly expanding, such as thin film solar energy, electronic components that tend to be integrated and ...

AI Technical Summary

Problems solved by technology

The hot embossing process is to heat the solid polymer film material to a molten state and press it into the mold cavity under high temperature and high pressure conditions. The processing speed should not be too fast. High requirements, low processing efficiency, etc.

UV curing imprinting is to extrude the liquid resin material into the mold cavity under normal temperature and pressure conditions and obtain the micro-nano structure array by UV light curing. The liquid material has very good fluidity, so this process has high processing efficiency, forming High precision and other characteristics, but the preparation of liquid resin materials requires a large amount of formula solvents, and the volatilization of solvents will cause environmental pollution during the UV curing imprinting process

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