Injection molding processing method for forming orthogonal through micro-hole

A technology of injection molding processing and tiny holes, which is applied in the field of injection molding to achieve the effects of ensuring relative position accuracy, reducing subsequent processing procedures, and reducing costs
CN104842535AInactive Publication Date: 2015-08-19DALIAN UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
DALIAN UNIV OF TECH
Publication Date
2015-08-19
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to an injection molding processing method for forming an orthogonal through micro-hole, belongs to the field of injection molding and relates to an injection mold processing method and device for forming the orthogonal through micro-hole. In the method, micro-adjustment is realized through side core-pulling movement of a micro-adjustable side core-pulling mechanism to complete accurate alignment of a horizontal arc surface with a vertical cylindrical surface. The implementation process of the injection mold processing method comprises steps of mold closing, pouring, mold opening and product ejection. The mold device adopted by the method consists of a fixed mold part, the micro-adjustable side core-pulling mechanism, an ejector sleeve / rod ejection mechanism and a movable mold part. By adopting the method, a micro-fluid connector with the orthogonal through micro-hole and a micro positioning through hole can be molded in one step, the subsequent process is reduced, the molding efficiency is high, the cost is decreased and the energy consumption is reduced; the relative position accuracy between the orthogonal through micro-hole and the micro positioning through hole can be guaranteed, a basic guarantee is provided for next step key bonding and encapsulation, and the quick replacement of a mold core is realized.
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Description

Technical field

[0001] The invention belongs to the field of injection molding, and relates to an injection processing method for forming orthogonal through micro holes. Background technique

[0002] Orthogonal through micro-holes with a cross-sectional size of about millimeters, including round holes, square holes and other special-shaped holes are typical structures on micro-devices, especially on flat-panel micro-devices such as micro-fiber splitters and micro-fluid connectors. The intersecting tiny holes are the key functional unit. The use of injection molding to manufacture polymer material micro-devices has the advantages of low cost, high production efficiency, and good device consistency. At present, there are mainly the following methods for manufacturing orthogonal through micro-hole structures:

[0003] 1) Liu Guowei invented a special twist drill for processing intersecting holes with the publication number CN 202701460 U. It uses a special mechanical cutting tool to...

Claims

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