Car audio panel injection mold

Abstract

The invention discloses a car audio panel injection mold. The car audio panel injection mold adopts a layout of one-mold and two-cavity, and comprises a fixed mold module (1), a hot runner module (2), a lateral core pulling device (3), a movable mold module (4) and a mold ejecting module (5); a mold cavity (14) of the fixed mold module, a mold core (44) of the movable mold module and a side mold core (36) of the lateral core pulling device are all provided with one part of plastic part bodies, are combined mold cores and jointly define an injection molding body cavity of a car audio panel plastic part; and the pulled cores can be separated from the mold cavity (14) and the mold core (44) in the core pulling direction. The car audio panel injection mold can realize no waste of injection molding materials in runners and reduction of the cost, further guarantees the quality and the precision of the car audio panel plastic part, reduces the probability of the plastic part for generating such defects as warping and burrs, can realize improvement of the injection molding efficiency of the car audio panel plastic part, and in particular, is suitable for large-batch production of car audio panels.

Description

technical field [0001] The invention relates to an injection mold, in particular to an injection mold for an automobile audio panel, and belongs to the technical field of injection molding processing of automobile audio components. Background technique [0002] The car audio panel is a key support plate installed in the car cab for installing car audio control buttons, knobs and various other operation keys. The existing car audio panels are usually highly integrated, usually with CD / DVD control, Buttons and knobs for functions such as navigation settings, clock settings, and in-car audio adjustments, such as figure 1 , figure 2 As shown, since more keys and knobs need to be set on a smaller car audio panel, and the car audio panel is also equipped with claws or buckles that can be tightly engaged with the operation panel of the car cab, At the same time, the car audio panel is usually provided with grooves for installing sound-proof materials such as damping plates and s...

AI Technical Summary

Problems solved by technology

[0002] The car audio panel is a key support plate installed in the car cab for installing car audio control buttons, knobs and various other operation keys. The existing car audio panels are usually highly integrated, usually with CD / DVD control, Buttons and knobs for functions such as navigation settings, clock settings, and in-car audio adjustments, such as figure 1 , figure 2 As shown, since more keys and knobs need to be set on a smaller car audio panel, and the car audio panel is also equipped with claws or buckles that can be tightly engaged with the operation panel of the car cab, At the same time, the car audio panel is usually provided with grooves for installing sound-proof materials such as damping plates and sound-absorbing cotton. Therefore, the car audio panel generally has a structure with multiple grooves and holes inside and outside, and the grooves or holes are mostly for It is easy to install the key position and has groove walls or hole walls or support ribs or partition ribs extending toward the inner side of the panel. The structure is more complicated and it is not easy to demould, and the processing is more difficult

[0003] In the prior art, car audio panels are made by one-time injection molding. For relatively simple car audio panels with simple surface structure, simple hole structure and simple buckle structure, in order to ensure sufficient filling capacity and molding effect, And it is easy to process and manufacture. Existing car audio panel injection molds usually adopt a single-mode single-cavity structure without side core pulling. The cavity and core of the core are mostly integrated. It is not only difficult to process the buckle structure, but also difficult to control the accuracy of the processing size. Therefore, this integrated injection mold is not suitable for such as figure 1 , figure 2 The car audio panel shown has a relatively complex structure; in addition, the existing injection molds for car audio panels usually use a cold runner pouring system, which not only easily causes defects such as warping and burrs of the plastic parts due to the influence of temperature, but also causes injection condensation. At the same time, the reuse of injection molding aggregates will not only increase the production cost, but also affect the quality of plastic parts due to the incomplete melting caused by the composition difference between injection molding aggregates and molten raw materials

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