A microporous foam in-mold decoration molding device

Abstract

The invention discloses a microporous foam mold interior decoration molding device, which comprises a film interior decoration molding mold, and the film interior decoration molding mold includes a lower mold and an upper mold; the lower mold is provided with a lower mold cavity, and the upper mold is provided with a connecting mold The injection channel of the lower mold cavity; the cavity bottom of the lower mold cavity is provided with at least one spray tank, the bottom of the spray tank is fixed with a spray tube, and the spray tube is provided with a plurality of spray nozzles distributed at equal intervals; the bottom of the spray tank One end is high and the other end is low to form a diversion slope, and a return hole is provided at the lower end of the diversion slope, and the return hole is connected to a return pipe; the notch of the spray tank is fixed with a plurality of support rods, and the top surface of the support rod and the lower mold The bottom surface of the cavity is flush. The device can achieve rapid cooling to reduce the problem of uneven cells caused by slow cooling during injection molding, and the device sets the bottom surface of the spray tank as a diversion slope and opens a return hole on the diversion slope to realize the recovery of cooling water Utilization, energy saving and environmental protection.

Description

technical field [0001] The invention relates to the field of film interior decoration, in particular to a microporous foam mold interior decoration molding device. Background technique [0002] Microcellular foamed plastics generally refer to a cell size of 1 to 10 μm and a cell density of 109 to 1010 cells / cm 3 , A polymer material with a closed cell structure. The size of the cells in microcellular foamed plastics is generally smaller than the cracks inside the material. The existence of such cells can passivate the original crack tips of the material, which is beneficial to prevent the cracks from expanding under stress, thereby improving the mechanical properties of the material. Performance is improved. During the production of microcellular foamed plastics, it is necessary to add a foaming agent to the polymer to generate gas to form bubbles. The in-mold decoration process is a surface decoration technology that completes the injection molding and surface decoration...

AI Technical Summary

Problems solved by technology

In the prior art, when microcellular foam injection molding and in-mold decoration molding are carried out at the same time, because the microcellular foam injection molding needs to be quenched and formed, and the thermal conductivity of the film of the in-mold decoration is small, there may be insufficient foam holes on the side of the film. uniform problem

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