Foamed plastic mould with mould plate with water and vapor through hole

Abstract

The template is made of foam plastic mold with water and steam passage holes, including an upper doubler plate, a cavity and a core. The upper doubler plate is made of a feed inlet and a steam water inlet. The upper doubler plate is connected to the cavity, and the cavity is formed with a material port , Soda curve and soda outlet, the core is connected under the cavity, there is a cavity between the cavity and the core, the core is made with a positioning groove, the outer wall of the cavity is inserted into the positioning groove, the core is made with sharp corners, the cavity There is a gap between the inner wall of the inner wall and the side wall with a sharp angle, and a head is made on the upper part, and each head is made with a steam hole. The steam hole is drilled from the bottom of the core, and the hole is sealed with the first plug. The steam holes at the top are changed to small-diameter micro-holes, and each steam hole is connected by a horizontal hole and a longitudinal hole, and the horizontal hole and the longitudinal hole are sealed by a screw plug. Longitudinal hole is connected, and steam, cooling water channel are made in the core, and the orifice of steam, cooling water channel is blocked with the second plug, and steam, cooling water channel are connected water inlet and water outlet.

Description

technical field [0001] The invention relates to a foam plastic mold with water and steam passage holes formed on the template. Background technique [0002] In the process of foam plastics processing, steam is input to heat the mold while feeding the material, and steam is input into the mold cavity to foam the plastic when the material is foamed. After foaming, cooling water is injected to cool the mold. And press air to release the product. [0003] In the prior art, the mold is cooled by spraying, or the steam hole and the cooling water hole are mixed in the same hole. Both structures will bring water vapor into the workpiece, and the workpiece needs to be dried, resulting in high production costs. Thus, Chinese patent CN201626084U sets cooling water pipes between the concave mold cavity and the die outer jacket, and sets the cooling water pipes between the side mold core and the punch outer jacket. Although the equipment for cooling without spraying is disclosed, such ...

AI Technical Summary

Problems solved by technology

However, when working, the steam holes and cooling water holes in the water-gas separation plate are connected with the steam holes and cooling water holes in the core. The assembly must be relatively accurate, and the steam and water permeability are very strong. Once there is an error in the assembly, It is possible to send cooling water to the mold cavity, which not only causes pollution, but also affects the quality of foam plastics

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