Adhesive frame making method

A manufacturing method and plastic frame technology, applied in nonlinear optics, instruments, optics, etc., can solve the problems of long forming cycle and high forming cost, and achieve the effects of reducing the use of screws, reducing costs, and reducing forming costs

Inactive Publication Date: 2011-11-16
AU OPTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Aiming at the problems of high forming cost and long forming cycle in th

Method used

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  • Adhesive frame making method
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Example Embodiment

[0015] The embodiments of the present invention will be described in further detail below with reference to the drawings.

[0016] figure 1 Shows a flow chart of the method for making a plastic frame according to the present invention. Reference figure 1 , Forming a continuum of each part of each plastic frame by using the special-shaped extrusion technology (step S11). The solid plastic enters the barrel through the hopper. With the cooperation of the barrel and screw made of corrosion-resistant, high-pressure-resistant, heat-resistant alloy steel, the plastic is crushed, softened, melted, and plasticized (that is, it becomes a viscous fluid ), exhaust, compaction. Generally, the length of the barrel is 15 to 30 times its diameter, so that the plastic can be fully heated and plasticized. The plasticized and compacted plastic in the barrel flows through the porous filter plate along a certain flow path through the neck of the machine head and flows into the machine head. The ...

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Abstract

The invention provides an adhesive frame making method which is applied to adhesive frames of LCD (Liquid Crystal Display) backlight sources and comprises the steps of: forming a continuum of each part of each adhesive frame by using an irregular extrusion technology; cooling each continuum; segmenting each continuum and punching system locking and attaching holes to form each part of each adhesive frame; and assembling all the parts into the corresponding adhesive frame. By adopting the adhesive frame making method provided by the invention, the mould production cost can be reduced greatly so as to reduce forming cost, a long and thin member can be formed, and a fastener type design is beneficial to reduction of the using amount of screws, so that the cost can be reduced by 20%.

Description

technical field [0001] The invention relates to a method for making a plastic frame, in particular to a method for making a plastic frame applied to an LCD backlight source. Background technique [0002] Injection molding is to fill the molten molding material into a closed mold under high pressure. The pressure in the cavity of injection molding is about 400KGF / CM2, which is about 400 atmospheres. It is its priority to make products with such a high pressure. Features, which are its advantages and also its disadvantages. That is to say, the mold must be made quite strong, so the price of the mold is also quite expensive, so it must be produced in large quantities to offset the high cost of the mold. For example, the production volume of each batch must be more than 10,000 pieces to be reasonable, in other words; injection molding The work must be mass-produced. The general forming process includes closing the safety door, clamping the mold, injecting the screw to advance ...

Claims

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Application Information

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IPC IPC(8): G02F1/13357
Inventor 宋文昌林继永
Owner AU OPTRONICS CORP
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