Method of preparing mould core, mould core and mould using the mould core

Abstract

The invention provides a die-core manufacturing method, which comprises the following steps: providing an eccentric die core and testing the deviation of the eccentric die core; providing a first blank and forming a first molding surface on one surface of the first blank so as to form a first template, while a deviation consistent with the deviation of the eccentric die core is arranged between the geometric centerline of the first template and the centerline of the first molding surface; providing a second blank and processing a second molding surface on one surface of the second blank so as to form a second template; the first template and the second template are oppositely arranged based on the location of the eccentric die core, so that the centerline of the first molding surface and the centerline of the second molding surface can be superposed to form a die core. In addition, the invention also relates to a die core which is made based on the die-core manufacturing method, and a die which adopts the die core. The die-core manufacturing method, the die core and the die using the die core can eliminate the eccentric phenomena existing in the optical lens molding process and improve the manufacturing quality of optical lenses.

Description

technical field [0001] The invention relates to a manufacturing method of a mold core, a mold core and a mold using the mold core, in particular to a mold core manufacturing method capable of eliminating the eccentric phenomenon existing in the forming process of optical lenses, a mold core and a mold using the mold core . Background technique [0002] Injection molding is to process the shape and structure of the mold core blank to make the mold core, and then assemble the mold core and the mold base into a complete set of injection mold, and install the injection mold on the molding machine, at the same time Control the pressure and temperature in the injection mold, inject the molten plastic into the injection mold, and finally form the plastic product through cooling and solidification. Injection molding technology has the characteristics of fast molding speed, one-time molding, and long service life of the mold. For the manufacturing method of the mold core, please re...

AI Technical Summary

Problems solved by technology

[0003] However, when the above-mentioned injection mold is used to manufacture optical lenses, the optical lenses often have misalignment between the optical axis of the formed optical lens and its geometric centerline due to the amount of deviation between the dies included in the mold core, that is, the There is eccentricity in the molding process of the optical lens

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