Mould capable of realizing rapid heat cycle

Abstract

The invention discloses a mould capable of realizing a rapid heat cycle, which comprises a mould core provided with a moulding surface and heating rods with set number. Heating rod accommodating holes are formed at positions close to the moulding surface in the mould core and accommodate the heating rods; cooling insulation holes corresponding to the heating rods are formed at positions close to the heating rods in the mould core provided with the moulding surface, and are positioned on one side of the heating rods far from the moulding surface; the overall outline of the cross section of each cooling insulation hole is a closed curve; and one or more cooling insulation holes enclose corresponding heating rods in three directions. The mould has the advantages that: the moulding surface can be rapidly and uniformly heated and cooled, and can be rapidly heated to the temperature approaching to or equal to the temperature of a fused material, so the moulded products have good quality, weld marks, flow marks, surface bubbles and the like are not generated easily, the products have uniform luster and density and low shrinkage, and injection pressure and product deformation caused by residual stress after the fused material is solidified and moulded are reduced.

Description

A mold capable of rapid cooling and rapid heating technical field The invention relates to a mold with a temperature control device, in particular to a mold capable of rapid cooling and rapid heating on molding machines such as injection die casting. Background technique The injection molding method of plastic or metal refers to injecting molten plastic or metal into the molding cavity of the mold, and obtaining a product consistent with the cavity after cooling and molding. In the injection molding process, heating and cooling devices are required to adjust and control the temperature of the mold to improve product quality. Existing mold temperature control devices generally use electric heating wires to heat water or oil as a liquid heat-conducting medium, and then flow into the mold to heat the mold. Among them, the water heat transfer medium can only be heated to 100°C in principle, and the oil heat transfer medium can only be heated to 200°C in principle. This heati...

AI Technical Summary

Problems solved by technology

The purpose of the present invention is to provide a rapid heating and uniform heating, rapid cooling and uniform cooling of the rapid heating and rapid heating mold of the forming surface of the mold core, so as to solve the problem of welding marks, flow marks and uneven gloss on the product. , uneven product density, surface foaming, shrinkage, large injection pressure and product deformation caused by residual stress after solidification of molten materials and other major defects

Images