Die capable of shortening working time and working method of die

Abstract

The invention discloses a die capable of shortening working time. The die comprises a lower die body, an upper die body and an auxiliary cooling structure which is disposed on the upper die body; an upper cavity is disposed at the lower end of the upper die body; a protruding portion is disposed at the bottom of the upper cavity; an assembling cavity for installing the auxiliary cooling structureis disposed between the protruding portion and the upper end of the upper die body; a spiral first concave portion is disposed on the outer wall of the auxiliary cooling structure; a spiral second concave portion is disposed on the wall of the assembling cavity; the first concave portion and the second concave portion are in butt joint with each other to form a spiral first cooling channel; an annular water inlet channel is disposed between the upper end of the upper die body and the upper cavity; an annular water outlet channel is disposed at the lower end of the upper die body; and a secondcooling channel is disposed between the annular water inlet channel and the annular water outlet channel. Cooling pipelines are uniformly disposed all around cavities, the conducting distances betweenthe cooling pipelines and the cavities are short, the conducting effect between the cooling pipelines and the cavities is good, the conducting contact area is large, distribution is uniform, the cooling time is shortened, the productivity is improved, and the energy is saved.

Description

technical field [0001] The invention relates to the field of advanced manufacturing and automation and the technical field of molding molds, in particular to a mold for shortening working hours. Background technique [0002] According to the shape of the product, different templates (including die-casting molds, plastic thermoforming molds and other molding molds) are designed with cold water or hot water in and out circuits, especially near the core, cavity and flow channel, it needs frequent cooling . In a working cycle, the cooling area of ​​the mold is large, and the cooling time is relatively long, accounting for about 80% of a cycle. [0003] The cooling system design of the mold should consider the following factors: the type of mold steel, the length of the cooling channel, the melting temperature and solidification temperature of the injected material. At the same time, the temperature control device, the flow state and pressure of the cooling medium should also b...

AI Technical Summary

Problems solved by technology

[0004] In order to achieve a good cooling effect, it is first necessary to ensure good contact and conduction of the coolant to the cavity. For parts with annular bosses, both the inner and outer sides of the boss need to be cooled during molding. The current mold structure unable to meet their needs

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