Method and device for injection molding and heat setting of automobile weather strip

Abstract

The invention discloses a method and device for injection molding and heat setting of automobile sealing strips. The method specifically includes: S100, producing EPDM / PP‑TPV injection molding raw materials by using a high temperature resistant reactor; EPDM / PP‑TPV injection molding raw materials are added into the injection molding cavity, and under the action of the cooling device, the rapid injection molding of the product in the injection molding cavity is realized; S300, the injection molded product in step S200 is taken out of the injection molding cavity by the robot , the device includes a mechanical workbench, a support base is arranged under the mechanical workbench, and a liftable injection molding device, a cooling device and a TPV vulcanization preparation device for producing injection molding raw materials are arranged above the mechanical workbench, and one end of the injection molding device can be raised and lowered. It is connected to the TPV vulcanization preparation device, and the other end is connected to the cooling and cooling device. There is a rotating support column between the TPV vulcanization preparation device and the mechanical workbench. need.

Description

technical field [0001] The invention relates to the technical field of production of automobile sealing strips, in particular to a method for injection molding and heat setting of automobile sealing strips and a device thereof. Background technique [0002] Automobile sealing strip is a kind of accessories with the largest amount of rubber used in automobiles except for tires. It is mainly used in the parts with gaps such as doors, windows, and hoods of automobiles. It plays the role of sealing, shock absorption, sound insulation, and decoration to prevent external sandstorms and rain. , dust, etc. invade the car to improve the working life and ride comfort of auto parts. Although it does not account for a large amount of the total cost of the car, it plays a vital role in the quality of the car. [0003] The existing automobile sealing strip still has the following problems in terms of material and its injection molding production process: [0004] (1) The main materials o...

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Problems solved by technology

[0004] (1) The main materials of traditional automobile sealing strips are mainly soft PVC, CR, and NR. With the rapid development of the automobile industry, the appearance quality and internal performance of soft PVC, CR, and NR sealing strips, especially weather resistance Performance and service life can no longer meet the needs of cars and other high-end cars;

[0005] (2) Since the manipulator in the production workshop is often installed at a higher position, it is convenient to operate the manipulator, but the lower mold of the traditional injection mold is usually fixed on the lower workbench, and then through the mold clamping effect of the upper mold, it can be realized Injection molding of injection molded products in the lower mold, so the manipulator at a higher position cannot complete the clamping operation of the injection molded product in the lower mold at a lower position, but can only manually take out the injection molded product. It brings more troubles to the operators and reduces the production speed of automobile sealing strips. Since the injection molded products need a long period of cooling and molding, and the surface temperature of the products obtained by injection molding is relatively high, even if the injection molded products After cooling and forming, it is necessary to cool the surface of the injection molded product for a period of time to avoid the operator from being scalded when taking off the injection molded product, which consumes a lot of time in the entire production process of the automobile sealing strip, thus greatly reducing Production efficiency of automobile sealing strips;

[0006] (3) Due to the molding process of injection molding products, not only a period of cooling is required for molding, but also a period of cooling is required. Moreover, if the surface of the workbench is at a high temperature for a long time due to injection molding, it will also cause damage to the workbench , to shorten its service life, so the cooling during the injection molding operation plays a vital role in the injection molding and heat setting process of the automobile weather strip. The traditional method often uses natural cooling to achieve the cooling effect. The method has the problems of poor cooling effect, long time consumption and low efficiency

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