Die unit and injection forming machine

Abstract

One kind of mold unit and injection molding machine. The mold unit consists of the first member, the second member, at least one sliding localizer, at least one guide pin and at least one guide sleeve. Of them, the first member contains the cavity retainer plate, the first back plate, the first insert and the first cavity. The first insert is fixed onto the first back plate. The first cavity is placed in the hole in the cavity of the first insert and can perform relative 2D movements against the cavity retainer plate. The second member is located on the opposite of the first member, with the second cavity being fixed on the second insert and a cavity being formed between the first cavity and the second cavity. The sliding localizer is equipped between the cavity retainer plate and the first back plate, so the first cavity can be at a desired 2D position in respect of the supporting plate. What's more, the guiding pin is on either the first cavity or the second cavity and the guiding sleeve is on the other cavity.

Description

technical field [0001] The present invention relates to a mold unit and an injection molding machine, and in particular to a mold unit and an injection molding machine using a sliding positioner. Background technique [0002] In recent years, with the advancement of science and technology, various optical products including cameras, digital cameras, camcorders, digital video cameras, fax machines, copiers, CD players, scanners and projectors, etc., have continued to improve in performance and drop in price. It has gradually become popular in daily life. [0003] General optical products have precision optical lenses, which are mainly composed of two spherical mirrors or aspheric mirrors. If the optical axis passes through the centers of the two mirrors without deviation, better image quality can be obtained. At present, the molding methods of optical lenses mainly include grinding and molding. [0004] Injection molding machines are commonly used tools when making optical ...

AI Technical Summary

Problems solved by technology

However, the mold unit 100 will tilt or deviate due to the gap between the guide pin 110 and the guide sleeve 120 when the mold is closed (that is, the molds 102 and 104 are closed), which is not conducive to the positioning between the molds 102 and 104

In addition, when the molds 102 and 104 of the mold unit 100 are opened and closed for a long time, the guide pin 110 and the guide sleeve 120 will contact and collide again and again to cause surface wear, resulting in loss of precision of the mold unit 100

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