Fixing structure for small metal piece in injection mold

Abstract

The invention discloses a fixing structure for a small metal piece in an injection mold. The fixing structure comprises an upper mold body, a metal piece unit and a lower mold body; the metal piece unit is composed of a left metal piece body and a right supporting plate; a pair of left-right symmetrical guiding limiting columns is disposed on the side wall of the lower mold body; a square limitinggroove matched with the supporting plate is formed in the upper end face of the side wall of the lower mold body; the guiding limiting columns are located in the limiting groove; the limiting plate can be arranged on the pair of guiding limiting columns in a sleeving mode from top to bottom; the metal piece body is located in a forming cavity of the lower mold body; an upper jacking plate which elastically ascends or descends is formed on the inner side wall of the upper mold body; a cutter head which is arranged in an ascending-descending mode is formed on the inner side wall of the lower mold body; and when the metal piece unit is put in the limiting groove, the cutter head directly faces the connecting position of the metal piece body and the right supporting plate. The fixing structure for the small metal piece in the injection mold is simple in structure, the problem that the small metal piece in the mold is difficult to position and prone to dropping is solved, the mold pressingis avoided, the mold maintenance cost is reduced, and the production efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of injection molds, in particular to a fixing structure for small metal sheets in injection molds. Background technique [0002] It has always been a difficult problem to locate and fix small steel sheets in the mold with dimensions within 25*15*0.2. Because the steel sheet is too small, it cannot be fixed well, and the steel sheet is easy to fall off during production, resulting in compression molding. [0003] Invention (Authorized Notification No. CN 206426386 U): A small-sized metal sheet fixing device in an injection mold. A proposed scheme includes a fixing plate, a pressure plate and a buckle. There are chutes on both sides of the top of the fixing plate, and the pressure plate passes through the chute. Connected with the fixed plate; there is a buckle under the pressure plate, and the buckle and the direction of the pressure plate are matched in the same direction; the side of the pressure plate fac...

AI Technical Summary

Problems solved by technology

Because the steel sheet is too small, it cannot be fixed well, and the steel sheet is easy to fall off during production, which causes the mold

[0003] Invention (Authorized Notification No. CN 206426386 U): A small metal sheet fixing device in an injection mold. A proposed scheme includes a fixing plate, a pressure plate and a buckle. There are chutes on both sides of the top of the fixing plate, and the pressure plate passes through the chute. Connected with the fixed plate; there is a buckle under the pressure plate, and the buckle and the direction of the pressure plate are matched in the same direction; the side of the pressure plate facing the buckle is equipped with a positioning needle sleeve, and the side of the buckle facing the pressure plate is equipped with a positioning pin corresponding to the positioning needle sleeve , there is a thimble on the bottom of the buckle; this method can indeed fix and maintain small metal pieces, but its size is too large, and it is used on the mold, the mold design will be very complicated, and the cost will be increased

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