An injection molding processing method for forming orthogonal through-holes

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.

Description

technical field [0001] The invention belongs to the field of injection molding, and relates to an injection molding processing method for forming orthogonal through tiny holes. Background technique [0002] Orthogonal through micro-holes with a cross-sectional size of about millimeters, including round holes, square holes, etc. The communicating micropore is one of the key functional units. 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 fabricating orthogonal through micro-pore structures: [0003] 1) The special twist drill for processing intersecting holes invented by Liu Guowei with the publication number CN 202701460 U uses special mechanical cutting tools and adopts manual alignment to manufacture orthogonal intersecting holes, which is not efficient and complicated to operate, and It is easy to sc...

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the defects of the prior art, the present invention invents an injection molding processing method for forming orthogonally penetrating tiny holes, and uses the micro-adjustment function of the fine-tuning side core-pulling mechanism to solve the problem of alignment coupling between the arcuate surface and the cylindrical surface, forming An effective implementation method for forming orthogonal through micro-holes

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