Hot press for processing dots on surface of light guide plate

Abstract

The invention relates to the technical field of plastic product production, and particularly discloses a hot press for processing dots on the surface of a light guide plate. The hot press comprises a rack, a manipulator, a transmission mechanism, a roller set, an output tape, a triaxial mechanism and a transmission supporting frame, wherein a base, a roller supporting frame and a lifting block are arranged in the rack; a hydraulic device is arranged in the roller supporting frame; the bottom of the lifting block is in contact with the top of the hydraulic device; die tapes are arranged on the outer sides of rollers in the roller set, and are made of an inert material with high rigidity, high strength, high thermal conductivity and low expansivity; the using times of the die tapes is maintained to be more than 100,000; the interiors of roller shafts are heated automatically, the temperature monitoring is carried out through a monitoring system, and the technical indexes need maintaining through accurate constant temperature; pressure required in product processing is ensured through adopting the linear scale of the product to finely adjust and set equipment distances, and two-stage adjustment of coarse adjustment and fine adjustment are realized; the technical indexes can be adjusted after the equipment distances are stably maintained.

Description

technical field [0001] The invention relates to the technical field of plastic product production, in particular to a hot press machine for processing dots on the surface of a light guide plate. Background technique [0002] There are three working methods for the production equipment used to screen dots on the surface of plastic boards today: [0003] 1. The advantages of ink printing are: low template cost, and large-size products can be produced. Due to the early development of ink printing, the technology is relatively mature, and the equipment operates stably; the disadvantages are: ink produces chemical pollution, is not environmentally friendly, the working environment is poor, and the process cycle Long, the product yield is poor, the ink has the problem of selective light absorption, which affects the chromaticity distribution, and can only produce a single diffuse dot. Production equipment using ink printing cannot achieve micro-nano microstructure printing, and r...

AI Technical Summary

Problems solved by technology

[0003] 1. The advantages of ink printing are: low template cost, and large-size products can be produced. Due to the early development of ink printing, the technology is relatively mature, and the equipment operates stably; the disadvantages are: ink produces chemical pollution, is not environmentally friendly, the working environment is poor, and the process cycle Long, the product yield is poor, the ink has the problem of selective light absorption, which affects the chromaticity distribution, and can only produce a single diffuse dot

Production equipment using ink printing cannot achieve micro-nano microstructure printing, and requires more personnel and high labor costs;

[0004] 2. The advantages of injection molding are: good stability, continuous production, high yield, good processing consistency, and long mold life; the disadvantages are: mold production cycle, high mold cost, high process requirements, and injection stress affects product flatness ;Only two kinds of diffusion dot type and micro-groove type can be produced

The production equipment using injection molding is limited by the process during production, and cannot make large-sized products or ultra-thin products;

[0005] 3. In the Chinese invention application with the publication number of 102343675A and the publication date of February 08, 2012, a light guide plate processing machine and the production process of the light guide plate are proposed. The light guide plate processing machine is based on the injection molding machine. A number of pressure roller groups are installed to directly press the plastic melt on the surface of the light guide plate online to form a microstructure, which can produce large-scale products and high production efficiency; however, due to the rapid cooling of the light guide plate itself, the light guide plate processing machine Unable to make ultra-thin plates, and can only produce two types of diffused dots and micro grooves

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