Forming and pressing die for loudspeaker drum paper

Abstract

The invention relates to a forming and pressing die for loudspeaker drum paper. The forming and pressing die for the loudspeaker drum paper consists of an upper die part and a lower die part, wherein the lower die part consists of a lower die head, a moveable pressing sleeve, a return spring and a lower template; the lower die head comprises a forming die body and a pressure-bearing column; the forming die body consists of a lower forming surface and a lower pressing ring; the moveable pressing sleeve is sleeved on the forming die body and the pressure-bearing column; the return spring is sleeved on the pressure-bearing column and is positioned between the moveable pressing sleeve and the lower template; and the upper die head is coaxial with the lower die head. The moveable pressing sleeve and the return spring are arranged on the lower die head; when the drum paper is pressed, cloth blank to be formed is pressed tightly by the upper pressing ring and the moveable pressing sleeve, and peripheral cloth is stressed uniformly and then is pulled deeply, pressed and formed, so that the folding phenomenon of the periphery of the drum paper finished product is eliminated, the finished product can be automatically demoulded by one person, and the forming and pressing die for the loudspeaker drum paper is safe and convenient to operate and labor-saving.

Description

Technical field: [0001] The invention relates to a mould, in particular to a molding and pressing mold for loudspeaker drum paper. Background technique: [0002] Drum paper is the key component that affects the sound quality of the speaker. The drum paper is usually made of fiber or fiber cloth and pressed with glue. The manufacturing method is to preform this kind of fiber material into a thin sheet, and then place it in the mold. Inner moulding, after proper drying and trimming, the finished product is mainly attached to the outer periphery of the speaker to play the role of vibration and pronunciation. Such as figure 1 It is a structural schematic diagram of drum paper, which consists of a cone 91, a corrugated plate 92 and a blank holder 93. Conventional drum paper forming press molds such as figure 2 As shown, it is made up of upper die part and lower die part, and upper die part is made up of upper die head 2 and upper die head 3, and upper die head 3 is fixed on t...

AI Technical Summary

Problems solved by technology

During the pressing process, the crimps around the drum paper are prone to creases, and the greater the cone height of the drum paper, the higher the proportion of creases. This is the cause of waste or defective products in the drum paper production process. The main process, at the same time, the existing drum paper forming pressing mold requires two people to cooperate in the process of pressing the drum paper. If the cooperation is not good, it is easy to cause work-related accidents, which will bring great harm and loss to the operator and the enterprise.

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