Grinding machining process of mould core of light guide plate
A technology for grinding and processing light guide plates
Inactive Publication Date: 2013-04-17
JINGJIANG YONGSHENG OPTOELECTRONICS TECH
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Problems solved by technology
[0003] The purpose of the present invention is to provide a grinding process for the mold core of the light guide plate, which can overcome the problems that the existing light guide plate is easy to scratch and cannot cover the black spots, white spots, fog spots and other problems generated during the injection molding process.
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[0007] The present invention will be described in detail below in conjunction with the process flow diagram, but the rights of the present invention are not limited in any way. The flow chart is only a simplified schematic diagram, and only illustrates the process flow of the present invention in a schematic manner.
[0008] A grinding process for the mold core of a light guide plate, characterized in that: the size of the core is designed according to the size requirements of the light guide plate; the surface of the core is ground by a precision grinder, and the grain size of the grinding wheel is selected to be 46# to 60#. Make the core surface have tiny grooves, and the grinding direction must be consistent with the light guide direction of the light guide plate; after the surface processing of the core is completed, the core is put into the light guide plate mold, and the finished light guide plate is processed by injection molding.
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A grinding machining process of a mould core of the light guide plate is provided. Core size is designed according to size requirement of the light guide plate. A precision grinder is adopted to grind the surface of the core. Grinding wheel granularity is selected to be 46# to 60# to enable a micro groove to be arranged on the surface of the core. The grinding direction is consistent with the light guide direction of the light guide plate. The core is placed in a mould of the light guide plate after the surface of the core is machined to conduct injection molding machining to form a light guide plate product. The light face of the light outlet face of the light guide plate is modified to be drawbench face of the micro groove, and the drawbench face serves as a diffusion film to block scratch of the light guide plate caused by improper machining in the assembly process and black dots, white dots, mist spots and the like caused by poor injection molding. The grinding machining process is convenient to machine and practical.
Description
Technical field: [0001] The invention relates to a grinding process for a mold core of a light guide plate, which is suitable for the LED backlight industry. Background technique: [0002] At present, the processing method of the surface of the core of the light guide plate mold is mirror surface treatment. The core processed by this process is easy to scratch the light guide plate produced, and cannot cover the black spots, white spots, fog spots, etc. generated during the injection molding process. Invention content: [0003] The purpose of the present invention is to provide a grinding process for the mold core of the light guide plate, which can overcome the problems that the existing light guide plate is easy to scratch and cannot cover black spots, white spots, and fog spots generated during the injection molding process. The object of the present invention is achieved in this way, a grinding process for the mold core of the light guide plate, which is characterized ...
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IPC IPC(8): B24B19/20
Inventor 黄亚鸣毛晔苏海钰
Owner JINGJIANG YONGSHENG OPTOELECTRONICS TECH