Foam forming die for soft sealing of parting surfaces

Abstract

The invention discloses a foaming forming die for soft sealing of a parting surfaces and belongs to the technical field of die processing technologies. The foaming forming die comprises an upper die and a lower die which are folded to form the die, a cavity and to-be-processed parting surfaces are arranged in the die, the parting surfaces comprise an upper die parting surface and a lower die parting surface, a U-shaped groove is formed in one of the parting surfaces, an air groove is formed in the other parting surface, a hollow sealing ring is embedded into an accommodating space formed by folding the air groove and the U-shaped groove, and the volume of the sealing ring is larger than that of the accommodating space. By using the foaming forming die disclosed by the invention, through restoring deformation force of the sealing ring, a height and a thickness of the sealing ring can be expanded, a gap between the parting surfaces can be made up, the upper parting surface and the lower parting surface are tightly attached and pressed, the better sealing effect is achieved, the finning phenomenon during product formation is reduced, a product is attractive in appearance, stable in size, few in bad defect and low in production cost finally, and the qualified rate of the products is greatly increased.

Description

technical field [0001] The invention relates to the technical field of mold processing technology, in particular to a foam molding mold with a soft-sealed parting surface. Background technique [0002] The car seat back panel is generally molded during production; the car seat back panel mold includes an upper mold and a lower mold. When the upper and lower molds are separated, the parts are taken out. cavity. Since the shape of the plastic part of the automobile back panel is often complex, the parting surface of the upper and lower molds of the mold is a complex curved surface; according to the requirements of the production process, the parting surface of the mold needs to be tightly sealed to seal the raw material while allowing ventilation. But can not leak material. The mold with a well-repaired parting surface can produce plastic parts without flash and does not need manual polishing. [0003] The traditional mold matching method is to install the mold on the mold ...

AI Technical Summary

Problems solved by technology

[0004] In view of the above deficiencies in the prior art, the purpose of the present invention is to provide a foam molding mold with a soft seal on the parting surface, which is squeezed by the sealing ring and deformed, so that the upper and lower parting surfaces fit better, and the sealing The recovery deformation force of the ring makes the height and thickness expandable, which can make up the parting surface gap, make the upper and lower parting surfaces fit tightly, and the pressing is tighter, so as to achieve better sealing effect and reduce the flash phenomenon when the product is formed. , which ultimately makes the product beautiful in appearance, stable in size, less defective, low in production cost, and greatly improves the product qualification rate

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