Sound-absorbing cotton pressing mould

Abstract

The invention discloses a sound-absorbing cotton pressing mould. The sound-absorbing cotton pressing mould comprises a molding board, wherein an opening is formed in the molding board; at least one vent hole is formed in the molding board; a knife mould is arranged inside the opening; a knife edge is arranged outside the knife mould; the knife edge is protruded out of the molding board; a pressure mould which consists of a plurality of pieces of metal is arranged inside the knife mould; the pressure mould is protruded of the molding board, and is lower than the knife edge; a positioning molding board is arranged inside the pressure mould; and a vent hole is formed in the positioning mould. The invention provides the mould which improves the sound reducing effect and the safety performance, and has the beneficial effects of being low in modifying cost and long in service life, reducing using cost and the like.

Description

technical field [0001] The invention relates to a mold, in particular to a press-fit sound-absorbing cotton mold which improves the sound-reducing effect. Background technique [0002] The existing sound-absorbing cotton can be widely used in different industries such as vehicles, home appliances, and office equipment. The sound-absorbing cotton is mainly used for sound-absorbing and noise-reducing functions. The metal knife mold formed by shearing is directly pressed on the sound-absorbing cotton after heating the metal knife mold. The sound-absorbing cotton is tightly integrated into one body, so that the cutting of the shape of the sound-absorbing cotton can be completed. It is known that the sound-absorbing cotton after shearing and lamination is prone to incomplete lamination because of the high temperature surrounding it. The surrounding area cannot be fully and effectively tightly combined, so that when it is used or encounters vibration, the pressed area is prone to...

AI Technical Summary

Problems solved by technology

[0002] The existing sound-absorbing cotton can be widely used in different industries such as vehicles, home appliances, and office equipment. The sound-absorbing cotton is mainly used for sound-absorbing and noise-reducing functions. The metal knife mold formed by shearing is directly pressed on the sound-absorbing cotton after heating the metal knife mold. The sound-absorbing cotton is tightly integrated into one body, so that the cutting of the shape of the sound-absorbing cotton can be completed. It is known that the sound-absorbing cotton after shearing and lamination is prone to incomplete lamination because of the high temperature surrounding it. The surrounding area cannot be fully and effectively tightly combined, so that when it is used or encounters vibration, the pressed area is prone to splitting, resulting in a reduction in the effect of sound absorption and noise reduction. The existing metal knife mold is cutting the sound-absorbing cotton When the sound-absorbing cotton is cut, the sound-absorbing cotton will stick to the metal knife mold because the front of the metal knife mold is tightly combined with the sound-absorbing cotton. It is necessary to remove the sound-absorbing cotton from the metal knife mold with tools or hands. The sound-absorbing cotton is easy to be scalded by the metal knife mold when lowering the sound-absorbing cotton, so it is dangerous to use

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