A retractable and outwardly retractable expansion and contraction mechanism for a freezer

Abstract

The invention discloses an expansion-contraction mechanism for a freezer, which includes an upper fixed plate and a lower fixed plate arranged in parallel, a support plate is vertically connected between the upper fixed plate and the lower fixed plate, and a There is a front riser parallel to the support plate, and four side risers are suspended behind the front riser. The front riser and the four side risers form a box-shaped structure with an opening facing the support plate. The box-shaped structure can be used to move away from Or close to the linear movement of the support plate, the four side walls of the box-like structure can expand outward or shrink inward. The invention solves the problem that it is difficult to demould the box body foam plug crafting tooling, improves the quality of the product, and reduces the labor intensity of the operators at the same time.

Description

technical field [0001] The invention belongs to the technical field of foaming moulds, and in particular relates to a retractable and outwardly retractable expansion and contraction mechanism for a freezer. Background technique [0002] In the prior art, the general refrigerator freezer is a box structure prepared by foaming technology. The foaming mold is usually used for the preparation of this type of foaming box. During preparation, the foaming mold is placed in the foaming mold box , After the foaming is completed in the foaming mold box, the foaming box body is obtained. This method often encounters the problem of poor demoulding. [0003] Therefore, the existing method is to put into the mold a craft block made of plank before foaming, and then take it out manually when the mold is opened, so as to alleviate the problem of poor demoulding. However, when such a method is used in the preparation of some refrigerator cabinets with special structures, it will still cause...

AI Technical Summary

Problems solved by technology

[0002] In the prior art, the general refrigerator freezer is a box structure prepared by foaming technology. The foaming mold is usually used for the preparation of this type of foaming box. During preparation, the foaming mold is placed in the foaming mold box , After the foaming is completed in the foaming mold box, the foaming box is obtained. This method often encounters the problem of poor demoulding

[0003] Therefore, the existing method is to put a craft block made of wooden boards into the mold before foaming, and take it out manually when the mold is opened, so as to alleviate the problem of poor demoulding

However, when such a method is used in the preparation of some freezer cabinets with special structures, it will still cause the problem of poor demoulding.

E.g, figure 1 In the freezer box 9, its end is designed with an inverted buckle 91 structure, and it is difficult to complete the demoulding work by using a craft block

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