Speaker shell injection molding and blanking mold
A speaker and blanking technology, which is applied in the field of workpiece injection molding, can solve the problems of product quality decline and uneven density of speaker shells, and achieve the effects of reducing internal stress, improving processing quality, and reducing waste of electric energy
Active Publication Date: 2021-07-20
SHENZHEN CARES PLASTIC ELECTRONICS
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Problems solved by technology
[0004] When the speaker shell is made by injecting molten plastic into the punch and the die, since the amount of plastic between different parts of the speaker shell is not uniform, when the speaker shell is processed, if it is processed at the same speed Molten plastic is injected, and the filling speed of plastic to different parts of the mold cavity is not equal, which will cause internal stress in the speaker shell after injection molding due to uneven density during processing, resulting in poor product quality. decline
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[0037] A kind of sound box shell injection molding blanking mold, such as figure 2 with image 3 As shown, it includes a die 1 , an upper die base 2 , a fixed plate 3 , an uneven blanking device 4 and a drive circuit 5 . The upper die base 2 is located directly above the die base 1 and the middle part of the die base 1 and the upper die base 2 is connected by a plurality of bolts. The fixed plate 3 is arranged directly above the upper die base 2. The upper part of the fixed plate 3 is fixed with a support plate 31, the support plate 31 is horizontally arranged directly above the fixed plate 3 and the fixed plate 3 is bolted. The four corners of the support plate 31, the fixed plate 3 and the upper die base 2 are all inserted with support columns 21, and the positions of the fixed plate 3 and the upper die base 2 corresponding to the support columns 21 are fixed with sleeves 22, and the sleeves 22 The fixing plate 3 and the upper mold base 2 can be closely attached to the su...
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The invention discloses a sound box shell injection molding blanking mold. The key points of the technical scheme are comprising a sound box shell, a die set above the sound box shell, an upper mold base set on the die base, and a fixing plate set on the upper die base. , the fixed plate is provided with a non-uniform blanking device connected with the upper template and the die, and the non-uniform blanking device includes a blanking shell, a non-uniform blanking device located at the inner bottom of the blanking shell, and a A plurality of feeding tubes at the bottom of the feeding shell; a drive circuit that drives the drive assembly to rotate is provided on the rotating blade, and the drive circuit includes a first resistor, a first time relay connected to the first resistor, and a first time relay connected to the first resistor The second time relay set in parallel. The invention solves the technical problem of how to achieve relatively similar filling speeds to reduce internal stress when the components in different parts of the sound box shell are not uniform.
Description
technical field [0001] The invention relates to the field of workpiece injection molding, more specifically, it relates to a blanking mold for injection molding of a sound box shell. Background technique [0002] Injection mold is a tool for producing plastic products; it is also a tool for giving plastic products complete structure and precise dimensions. Injection molding is a processing method used in the mass production of certain complex-shaped parts. Specifically, it refers to injecting the heated and melted plastic into the mold cavity under high pressure from the injection molding machine, and after cooling and solidifying, a molded product is obtained. [0003] In the prior art, the authorized announcement number that can be referred to is the Chinese patent of CN202895568U, a plastic product molding machine, including a workbench, a frame and a shelf installed on the workbench, and a bone injection mold is provided on the frame. The bone injection injection mold ...
Claims
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IPC IPC(8): B29C45/26
CPCB29C45/0046B29C45/26
Inventor 方楷
Owner SHENZHEN CARES PLASTIC ELECTRONICS