Fixing mechanism of mold

Abstract

The invention provides a fixing mechanism of a mold, belongs to the technical field of injection molds, and solves the problem that existing pipes and rotary copper pieces are processed in two steps.The mold comprises an upper mold and a lower mold, wherein a forming cavity can be formed after the upper mold and the lower mold are combined, a sliding block capable of sliding is arranged on the lower mold, the sliding block is matched with the upper mold through an inclined guide column structure, the mold is characterized in that the fixing mechanism comprises a first core fixedly connected to the sliding block, the inner end, capable of extending into the forming cavity, of the first core is a positioning part for sleeving a rotary copper piece, and an elastic piece and a steel ball arearranged in the positioning part. The steel ball can be partially positioned outside the positioning part and embedded into an internal thread of the rotary copper piece under the action of elastic force of the elastic piece. According to the mold, the rotary copper piece is embedded and fixed in a pipe while the pipe is formed, and the processing efficiency is high.

Description

technical field [0001] The invention belongs to the technical field of injection molds, and relates to a mold fixing mechanism. Background technique [0002] Injection molding is a method of producing shapes for industrial products, and products usually use rubber injection molding and plastic injection molding. When injection molding, it is often necessary to inject some pipes and joints, and some pipes and joints include straight pipe parts and arc pipe parts. [0003] Existing pipe injection molds, for example, Chinese patent literature discloses a curved pipe mold oblique guide column core-pulling mechanism [application number: 201220146820.8; authorized announcement number: CN202640709U], which includes a fixed mold seat plate and a movable mold seat plate, fixed The mold base plate is connected with the fixed formwork and the lock module, the mold feet are installed on the movable mold base plate, the thimble plate and the thimble double plate are arranged between the...

AI Technical Summary

Problems solved by technology

The curved pipe mold of this structure is to process the curved pipe first, and then embed and fix the rotating copper parts to the end of the pipe through another equipment or manually through glue bonding, and then divide it into two parts for processing. low efficiency

At the same time, the curved pipe mold with this structure can process a pipe similar to a straight pipe bent at a certain angle, only with a short section of arc-shaped side wall at the bend, and most of them are still straight. Obviously, the curved pipe mold with this structure cannot process curved pipes

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