Compression mold for nonmetal parts with threads at two ends

Abstract

The invention discloses a compression mold for a nonmetal part with threads at two ends. The compression mold comprises a bottom mold, a threaded ring, an outer mold, an upper mold and a mold pin; thethreaded ring is a circular ring-shaped combined piece formed by splicing two semi-ring-shaped sub-pieces; the two semi-annular sub-pieces of the threaded ring are encircled into the circular ring-shaped combined piece through a clamping ring, the threaded ring is mounted on the upper plate surface of the bottom mold; correspondingly inserting two groups of first mold pins and second mold pins for forming process holes into the two groups of mold pin through holes in the bottom mold; and the lower end of the outer mold is inserted into the outer side of the threaded ring, so that a pressing cavity is defined by the working profile of the upper plate surface of the bottom mold, the working profile of the inner ring of the circular ring-shaped combined piece of the threaded ring, the working profile of the inner wall of the lower end of the outer mold and the working profile of the lower end of the upper mold. According to the compression molding mold, the problem that a sealing plug cover part with threads at the two ends is difficult to form is effectively solved, and mold stripping is convenient.

Description

technical field [0001] The invention relates to a compression mold with threaded non-metal parts at both ends, which belongs to the field of mold design. Background technique [0002] A sealing plug product is a ring-shaped part with multiple steps made of non-metallic materials. One end of the sealing plug is processed with internal threads and the other end is processed with external threads; and the outer ring and inner ring of the sealing plug Both are provided with a plurality of process slots and process holes. Due to the special structure of the sealing plug, when processing this part by traditional technology, only the method of machining molding can be used. This method of molding not only requires many steps, but also has a long processing cycle, which is not suitable for mass production, and the machined thread is easy to crack and deform. Unable to meet usage requirements. Therefore, it is proposed to adopt the method of compression molding to meet the requirem...

AI Technical Summary

Problems solved by technology

However, if the traditional compression mold structure is used for molding, since the part has an internal thread at one end and an external thread at the other end, the mold cannot be unloaded after compression molding, so that one-time compression molding cannot be realized.

In addition, the process grooves and blind holes on the parts are easy to cause local breakage when unloading the mold, which cannot meet the product quality requirements

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