Maze conformal cooling method and structure of mold

Abstract

The invention provides a maze conformal cooling method and structure of a mold, and aims to solve the problem that the conventional mold cooling method cannot meet efficient and uniform cooling requirement of a complex mold. Compared with three traditional mold cooling method including a straight hole flow channel, a built-in bent pipe flow channel and a common tubular shape follow-up flow channel, the maze conformal cooling method is high in cooling efficiency and good in cooling effect. According to the structure, a hollow layer nearly parallel to the inner surface of a cavity is arranged in the position, having certain thickness distance from the cavity, in the mold, a maze type partition wall is arranged in the hollow layer, and a cooling medium flows in a channel formed by partition wall gapes in a cooling layer. The maze conformal cooling method and the structure of the mold have the advantages that the cooling state of the cooling medium in the gaps of the maze type partition wall is turbulence, and the contact area between the cooling medium and the mold is increased, so that the cooing efficiency is high, the service life of the mold is long, an injection molding process period is shortened, and the injection molding manufacturing cost is reduced. A 3-dimensional laser printing technology is adopted to directly manufacture the mold with the layered maze flow channel conformal cooling structure, components in the mold are uniform, the molding process is simple, the mold manufacturing period is short, and the mold manufacturing cost is low.

Description

technical field [0001] The invention belongs to mold manufacturing technology, in particular to a mold labyrinth conformal cooling method and its structure. Background technique [0002] Mold technology is one of the most widely used technologies in the manufacturing industry today. The cooling system of the mold has an important impact on the life of the mold, the production efficiency and quality of the product. Especially for complex large molds, the cooling system is more important. At present, there are three main cooling methods for molds: straight hole runner cooling method, built-in elbow runner cooling method and tubular conformal runner cooling method. [0003] Straight-hole runner cooling method is the most widely used in mold technology at present. Through traditional machining methods, such as turning, milling, planing, drilling, grinding, and electro-erosion on metal blanks, molds with straight-hole cooling runners can be obtained. . Straight hole cooling ru...

AI Technical Summary

Problems solved by technology

This cooling method has the following problems: First, the straight hole flow channel cannot be evenly close to the surface of the cavity and core, resulting in uneven cooling effect. loss, low cooling efficiency

However, when the tubular conformal cooling method has a certain cross-sectional area of ​​the flow channel, the circumference is small and the contact area with the mold is small, which limits its cooling efficiency.

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