Split template plastic foam mold

Abstract

The invention discloses a plastic foaming mould of a dividing template. The plastic foaming mould comprises an upper compound plate, a cavity, a core, a core bushing and a lower compound plate, wherein the upper compound plate is provided with a feeding port and an aerated water inlet; the cavity is connected below the upper compound plate, the cavity is provided with a feeding port, an aerated water bending channel and an aerated water outlet, the core is connected below the cavity, and a mould cavity is arranged between the cavity and the core; a sharp corner is arranged on the core, the upper part of the core is provided with heads, each head is provided with a steam hole, and the steam holes drill from the bottom of the core; hole ports are sealed by end caps, the tops of the steam holes are changed into micropores, and each steam hole is composed of horizontal holes and longitudinal holes through communication; the bottom of the core is provided with steam and air inlets, the outer side of the core is provided with the core bushing, the lower compound plate is provided with steam and air inlets, an aerated water inlet channel, an aerated water groove and an aerated water outlet channel, the core is provided with aerated water flowing channels, aerated water flowing channels are communicated; steam or cooling water enters the aerated water groove from the aerated water inlet channel, and enters the aerated water flowing channels of the core to heat or cool the core so as to discharge from the aerated water outlet channel.

Description

technical field [0001] The invention relates to a foamed plastic mould, in particular to a split-template plastic foamed mould. Background technique [0002] In the process of processing foamed plastics, steam is fed into the mold to heat the mold while feeding, and steam is fed into the mold cavity to foam the plastic when the feeding is completed and foamed, and cooling water is fed into the mold after foaming. Cool 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. The prior art adopts that a cooling water pipe is set between the concave mold cavity and the die outer jacket, and a cooling water pipe is arranged between the side mold core and the punch outer jacket. The split structure of the cooling water pipe, through the...

AI Technical Summary

Problems solved by technology

[0003] The existing technology uses spraying to cool the mold, or the steam hole and the cooling water hole are mixed in the same hole, both structures will bring water vapor into the workpiece, the workpiece needs to be dried, and the production cost is high

The prior art adopts that a cooling water pipe is set between the concave mold cavity and the die outer jacket, and a cooling water pipe is arranged between the side mold core and the punch outer jacket. The split structure of the cooling water pipe, through the contact between the pipe wall and the mold wall, the cooling effect is poor, there are many pipe joints, and the installation is troublesome

The published patent document (patent application number is 201210519503.1) adopts the method of making the steam-water channel on the lower doubler plate, which is far away from the core. In addition, after the pipe is empty, the heat transfer and cooling effects are poor, and the core cannot reach heating and cooling. Effect

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