Refrigerator freezing box foaming mould

Abstract

The invention relates to the technical field of refrigerator production equipment and discloses a refrigerator freezing box foaming mould. The mould comprises a base. A mounting groove is fixedly mounted in the top of the base. Fixing rings are fixedly mounted between the inner walls of the top of the mounting groove. A lower mould body is fixedly mounted between the inner walls of the fixing rings. A heating mechanism is arranged on the lateral side of the mounting groove. Two symmetric air cylinders are fixedly mounted on the bottom surface of a top cover. An upper mould base is fixedly mounted between the output ends of the two air cylinders. An upper mould body is fixedly mounted on the bottom surface of the upper mould base. Two symmetrically-connected connecting frames are fixedly mounted on the top surface of the base. An injection mechanism is arranged between the tops of the two connecting frames. A communicating pipe is fixedly connected between the left side wall of the injection mechanism and the right side wall of the lower mould body in a communicating mode. A connecting block is fixedly mounted at the top of the injection mechanism. A stirring box is fixedly mountedat the top of the connecting block. A connecting pipe is fixedly connected between the inner bottom wall of the stirring box and the inner top wall of the injection mechanism in a communicating mode.By means of the refrigerator freezing box foaming mould, the lower mould body can be heated and subjected to heat preservation before foaming, and foaming layering is avoided.

Description

technical field [0001] The invention relates to the technical field of refrigerator production equipment, in particular to a foaming mold for a refrigerator freezer box. Background technique [0002] The mold for foam molding is a plastic foam mold. The foamable resin is directly filled into the mold, and it is heated and melted to form a gas-liquid saturated solution. Through nucleation, a large number of tiny bubble nuclei are formed, and the nuclei grow. There are three commonly used foaming methods for foam plastic parts: physical foaming method, chemical foaming method and mechanical foaming method. [0003] The foaming mold of the traditional refrigerator freezer box does not heat the mold before foaming, and foaming and stratification may occur after foaming molding. At the same time, under the premise that the mold needs to be heated and kept warm, the foaming raw Before reaching the mold, self-polymerization may occur due to the influence of ambient temperature, re...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a foaming mold for a refrigerator freezer box, which solves the problem that the mold is not heated and kept warm before foaming in the traditional refrigerator foaming mold, resulting in foaming layering in the molded foam.

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