Balancing ring forming mold

Abstract

The invention relates to a balancing ring forming mold, and solves the technical problems of unreasonable design and the like in the prior art. The balancing ring forming mold comprises a mold base; acombined annular core male mold and an upper cavity mold buckled on the combined annular core male mold are fixed on the mold base; a balancing ring forming cavity is formed between the combined annular core male mold and the upper cavity mold; a plastic glue feeding mechanism for feeding glue into the balancing ring forming cavity is fixed above the upper cavity mold; the mold base is provided with an annular outer ejector block sleeves on the outside of the combined annular core male mold, 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 a balance ring formed in the balancing ring forming cavity; and an inner round ejector block located in the combined annular core male mold, and the edge of the uppersurface of the inner round ejector block is in contact with the inner end face of the lower end of the balancing ring, wherein the annular outer ejector block and the inner round ejector block are connected with a lifting drive mechanism. The balancing ring forming mold provided by the invention has the advantage that the quality of ejected products is improved.

Description

technical field [0001] The invention belongs to the technical field of moulds, and is used for the development and manufacture of balance rings of washing machines, in particular to a balance ring forming die. Background technique [0002] The balance ring of the washing machine is a ring structure and is formed through injection molding. [0003] The balance ring of the washing machine has a U-shaped cross-section on one side, see the attached Figure 5 , when demolding, existing adopt outer circle several lugs to contact with the lower end outer end face of washing machine balancing ring respectively, adopt inner circular piece to contact with inner end face, then upward jack-up forces washing machine balancing ring to break away from mandrel upwards. [0004] The above-mentioned ejection structure can meet the production requirements to a certain extent, but this ejection method has the following defects: [0005] It is difficult for the bumps to be assembled on a horizo...

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

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