Dumb ring forming die

A technology for forming molds and gimbal rings, which is applied to household appliances, other household appliances, household components, etc., can solve problems such as uneven contact, difficult assembly of bumps, affecting product demolding quality, etc., to reduce rework rate and simple structure. , The effect of reducing the difficulty of replacement and maintenance

Active Publication Date: 2022-02-11
宁波翔荣精密模具有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The bumps are difficult to be assembled on a horizontal surface, that is to say, there is a certain height difference between the circumferentially distributed bumps, and this height difference will lead to uneven contact during ejection and affect the demoulding quality of the product

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0048] The following are specific embodiments of the invention and in conjunction with the accompanying drawings, the technical solutions of the present invention are further described, but the present invention is not limited to these embodiments.

[0049] like Figure 1-2 and Figure 4 As shown, the balance ring forming mold includes a mold base c1, and the mold base c1 includes a fixed bottom plate c12, a support block c13 fixed on the upper surface of the corresponding two sides of the fixed bottom plate c12, and a fixed support block c13 fixed on the upper surface of the two support blocks c13 The middle plate c14, the fixed middle plate c14 is an annular plate.

[0050] like Figure 6-10 as shown,

[0051] A combined annular core punch d is fixed on the mold base c1, and the combined annular core punch d includes a circular base d1 arranged horizontally, and the circular base d1 is made of mold steel material. The circular base d1 is convenient for lathe processing. ...

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PUM

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Abstract

The invention relates to a balance ring molding die. It solves technical problems such as unreasonable design of the prior art. The balancing ring forming mold includes a mold base on which a combined annular core punch is fixed, and an upper cavity mold fastened on the combined annular core punch, the combined annular core punch and the upper cavity mold A balance ring molding cavity is formed between them, and a plastic glue feeding mechanism for feeding into the balance ring molding cavity is fixed above the upper cavity mold, and an annular outer ejector sleeve is set on the outside of the combined annular core punch on the mold base. block and the inner side of the upper surface of the annular outer ejector block is in contact with the outer end surface of the lower end of the balance ring formed in the balance ring molding cavity, and the inner circular ejector block located in the combined annular core punch and the inner circular ejector block The outer edge of the upper surface is in contact with the inner end surface of the lower end of the balance ring, and the annular outer ejector block and the inner circular ejector block are connected with the lifting drive mechanism. The advantage of the invention is that the quality of the ejected product is improved.

Description

technical field [0001] The invention belongs to the technical field of molds, is used for the development and manufacture of a balance ring of a washing machine, and particularly relates to a balance ring forming mold. Background technique [0002] The washing machine balance ring is an annular structure, which is formed by injection molding. [0003] The unilateral transverse section of the balance ring of the washing machine is U-shaped, see attached Figure 5 When demoulding, several protrusions of the outer ring are used to contact the outer end face of the lower end of the washing machine gimbal respectively, and the inner circular block is used to contact the inner end face, and then the washing machine gimbal ring is pushed upward to force the washing machine gimbal to escape from the core mold. [0004] The above-mentioned ejection structure can meet the production requirements to a certain extent, but this ejection method will have the following defects: [0005] I...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C45/33B29C45/44B29C45/26B29C45/73B29L31/00
CPCB29C45/33B29C45/44B29C45/2673B29C45/2737B29L2031/7102
Inventor 范建道
Owner 宁波翔荣精密模具有限公司
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