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Foaming and expanding-shrinking mold for box body

A box and mold technology, which is applied in the field of refrigerator liner molding, can solve the problems of poor mold stability, easy interference, and influence on foaming quality, and achieves the effects of compact transmission structure, improved foaming quality, and less interference.

Active Publication Date: 2016-10-12
滁州市博精模具设备制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, when designing the box foaming mold of the refrigerator liner, a hanger structure is usually used. Because the box liner is small, the expansion and contraction stroke is large, and the internal structure is easy to interfere. After the hanger runs for a period of time, due to long-term Force deformation, poor mold stability, and the hanger and equipment are easy to interfere and inflexible, affecting the quality of foaming, and the probability of waste products is high. However, nowadays, the competition among refrigerator manufacturers is fierce, and the requirements for the mold industry are becoming more and more stringent. The structure of the mold is stable high demands on performance and efficiency

Method used

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  • Foaming and expanding-shrinking mold for box body
  • Foaming and expanding-shrinking mold for box body
  • Foaming and expanding-shrinking mold for box body

Examples

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Embodiment Construction

[0022] The following examples are a further description of the content of the present invention as an explanation of the technical content of the present invention, but the essential content of the present invention is not limited to the following examples, those of ordinary skill in the art can and should know any Simple changes or replacements of the essential spirit of the invention shall fall within the scope of protection required by the present invention.

[0023] like Figures 1 to 9 As shown, a box foam expansion and contraction mold, such as figure 1 , 2 As shown, the mold includes a base plate 10 and a punch body, and the punch body is composed of a top plate 12, a side plate 11a and an end plate 11b, and each top plate 12, side plates 11a and end plates 11b are split structures , and each side plate 11a and end plate 11b are arranged to reciprocate along their respective normal directions, so that the volume of the punch body can expand or shrink laterally, and th...

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PUM

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Abstract

The invention belongs to the technical field of forming of inner containers of refrigerators and particularly relates to a foaming and expanding-shrinking mold for a box body. The mold comprises a base plate and a convex mold body, wherein the convex mold body is formed by combining top plates, side plates and terminal plates, each top plate, each side plate and each terminal plate are of a split type structure, and each side plate and each terminal plate are arranged to do reciprocating motion along the normal so as to transversely expand or shrink the convex mold body; the top plates are fixedly arranged relative to the base plate, and pulling cores are arranged in crevices between the side plates and the top plates to do up-down reciprocating motion; in a foaming process, the side plates expand outwards, and then the pulling cores are level with the tops of the side plates and the top plates; and in a demolding process, the pulling cores move down, so as to form a space for the horizontal shrinkage of the side plates. According to the foaming and expanding-shrinking mold, the expansion and shrinkage of the top plates and the side wall of the mold are simultaneously driven by virtue of the vertical motion of a movable frame, a transmission structure is compact, and the interference is unlikely to be caused in an operation process, so that the foaming quality of the box body is effectively improved.

Description

[0001] technical field [0002] The invention belongs to the technical field of refrigerator liner molding, and in particular relates to a foaming expansion and contraction mold for a box body. Background technique [0003] In the prior art, when designing the box foaming mold of the refrigerator liner, a hanger structure is usually used. Because the box liner is small, the expansion and contraction stroke is large, and the internal structure is easy to interfere. After the hanger runs for a period of time, due to long-term Force deformation, poor stability of the mold, and easy interference between the hanger and the equipment is inflexible, affecting the quality of foaming, and the probability of waste products is high. However, the competition among refrigerator manufacturers is fierce nowadays, and the requirements for the mold industry are becoming more and more stringent, and the structure of the mold is stable. Performance and efficiency make high demands. Contents ...

Claims

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Application Information

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IPC IPC(8): B29C44/58
CPCB29C44/58
Inventor 吴嵩
Owner 滁州市博精模具设备制造有限公司
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