Production device for automobile large injection molding part

Abstract

The invention discloses a production device for an automobile large injection molding part. The production device comprises a material conveying device, an injection molding device and a cooling device, wherein the material conveying device comprises a workbench, a material storage box, a material suction machine, a second supporting frame and a second conveying pipe, the injection molding deviceis arranged on the left side of the workbench, the injection molding device comprises an injection molding machine, a drying machine, a motor, a first supporting frame, a rotating rod and a mold, andthe cooling device is arranged on the left side of the injection molding device; and the cooling device comprises a water storage tank, a booster pump, a first conveying pipe and a spray head. The quality risks of weld marks and buckling deformation caused by abnormal mold temperature in the production process are greatly reduced, the quality stability of long-term production is guaranteed, the reject ratio is reduced, unnecessary invalid waiting time is shortened, further, the injection molding cycle is shortened, meanwhile, a manipulator is adopted for taking the product, thus the productioncycle is further shortened, and production efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of injection molding production, in particular to a production device for large injection molded parts of automobiles. Background technique [0002] At present, the competition in the domestic automobile market is very fierce, and the price of automobiles has dropped again and again. Under the general environment of assembly plants lowering prices, raw material prices and workers' wages rising, they must do their best to further improve the quality under the premise of ensuring quality. Improve production efficiency and reduce production costs, otherwise it will be eliminated by the market. Large-scale injection molded parts of automobiles usually include instrument panels, various guard panels, bumpers, etc. These products have relatively large dimensions and have high requirements on product appearance. [0003] The disadvantages of the current traditional production methods are: [0004] 1. Usually, the...

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Problems solved by technology

[0004] 1. Usually, the non-needle valve hot runner system is used for pouring. For such large injection molded parts with high appearance requirements, it is difficult to completely eliminate the weld line or to stably reduce the weld line to the customer's acceptable level. degree;

[0005] 2. The traditional method sets the pressure holding time and cooling time of injection molding by the method of empirical estimation, which cannot guarantee the accuracy, resulting in too long injection molding cycle and low production efficiency;

[0006] 3. There are fluctuations in the long-term injection molding production process, especially the actual temperature of the mold is usually unstable. Large-scale injection molded parts of automobiles are easily deformed due to mold temperature changes, and even weld lines reappear

However, traditional methods cannot effectively prevent and control mold temperature changes, resulting in extremely high quality risks

The large injection molding parts of automobiles are all large molds, the mold manufacturing cost is high, the product is heavy (consumes a lot of rubber), and a large injection molding machine is required for production, so the production cost of a single piece is high, and the instability caused by mold temperature instability Good products will bring huge losses to the manufacturer, so a production device for large-scale injection molded parts of automobiles is proposed

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