Round hinge mold

Abstract

The invention discloses a round hinge mold. The round hinge mold comprises a supporting block and a model block, wherein the supporting block is a round block; a first cylindrical hole is formed in the upper surface of the supporting block; a second cylindrical hole is formed in the lower surface of the supporting block; the model block is also a round block and is inlaid in the first cylindrical hole; a through hole is formed in the middle of the model block; the perpendicular section of the through hole has an inverted-trapezoid structure; the level structure of the through hole is formed by enclosing a first circle, a second circle and a tangent line which is connected with the first circle and the second circle; the length of the upper end of the through hole is greater than that of the lower end of the through hole; the first circle and the supporting block share a circle center; the circle center of the second circle is deviated from the circle center of the first circle along a horizontal symmetric center line of the supporting block; a transition section is arranged at the lower end of the through hole; and the inner wall of the transition section is parallel to the perpendicular direction of the supporting block. The round hinge mold is reasonable in structure; one-step forming of round hinges can be realized; the round hinges are machined conveniently; and the production efficiency is improved.

Description

technical field [0001] The invention relates to a mold for producing hinges, especially a circular hinge mold. Background technique [0002] There are various shapes of hinges on the market, such as round hinges, flat hinges, small flag hinges, etc., and the forming and processing of hinges requires specific molds, so the dimensions of the molds must be very accurate to ensure that the produced hinges have a complete structure and dimensions The deviation is not large and can be sold in the market. There are slight dimensional changes on the circular hinge, so the forming mold of the circular hinge is more difficult than other hinges. Due to the limitation of the mold, it is difficult to achieve a complete forming. The lack of progress in the forming technology requires subsequent further processing, which is extremely costly and costly. manpower. Contents of the invention [0003] The object of the present invention is to provide a mold with reasonable structural design...

AI Technical Summary

Problems solved by technology

[0004] The present invention solves the problem that the existing circular hinge molding die lacks rationality in structural design, and it is difficult to meet the requirement of one-time complete molding, resulting in a great waste of financial resources and manpower.

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