Foaming box

Abstract

The invention belongs to the technical field of electric appliance production and manufacturing, and particularly relates to a foaming box. The foaming box is prepared by the following method including the steps of 1, fixedly connecting an inner container and an outer shell of the box into a whole, 2, placing a foaming agent pouring hole of the box in a foaming mold upwards, 3, pouring a foaming agent, 4, mounting a hole sealing piece on the inner side of the foaming agent pouring hole, 5, loosening the hole sealing piece, 6, expanding the mold again, 7, cleaning the foaming agent overflowingfrom the back face and the side face of the box, 8, overturning the box until the front face is upward and 9, cleaning the front face of the box and the surface of the inner container. A hole sealingdevice is additionally arranged on the basis of an existing foaming mold, the hole sealing piece is placed on the inner side of the pouring hole through the hole sealing device, the hole sealing piececan be tightly attached to the inner side plate face of the box through extrusion of the foaming agent after the foaming agent achieves foaming, and the phenomenon that a foaming layer is wet and mildewed due to the fact that moisture permeates into the foaming layer can be effectively avoided.

Description

technical field [0001] The invention belongs to the technical field of electric appliance production and manufacturing, and in particular relates to a foam box body. Background technique [0002] The electrical cabinets such as refrigerators and freezers generally use foaming technology to form an insulation layer between the outer shell and the inner tank. When foaming, a pouring hole should be reserved on the outer shell. However, the processing of the pouring hole in the prior art has the following defects: First, the pouring hole is generally located on the back or bottom of the appliance, so many manufacturers do not do any treatment on the pouring hole after foam molding or simply seal it with tape. After long-term use of the appliance, it is easy to cause the foam layer to become damp and mildewed In addition, the pouring hole also lacks effective means of sealing during the foaming process. After the foaming is completed, a large amount of foaming agent often overflo...

AI Technical Summary

Problems solved by technology

[0002] The electrical cabinets such as refrigerators and freezers generally use foaming technology to form an insulation layer between the outer shell and the inner tank. When foaming, a pouring hole should be reserved on the outer shell. However, the processing of the pouring hole in the prior art has the following defects: First, the pouring hole is generally located on the back or bottom of the appliance, so many manufacturers do not do any treatment on the pouring hole after foam molding or simply seal it with tape. After long-term use of the appliance, it is easy to cause the foam layer to become damp and mildewed In addition, the pouring hole also lacks effective means of sealing during the foaming process. After the foaming is completed, a large amount of foaming agent often overflows from the pouring hole, which increases the difficulty of cleaning; It is necessary to clean the foaming agent overflowing from the surface of the box and the liner. During the cleaning process, the box needs to be turned over. The existing turning equipment is prone to impact during the turning process, which will cause damage to the surface of the box. Damage; In addition, the structure design of the existing turning equipment is unreasonable, the mechanism stroke is long, and the action efficiency is low

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