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The color of toothbrushes has also changed from the original single color to multi-color matching, so as to meet the needs of the public for products. Among them, two-color toothbrushes are the most exposed in daily life. Therefore, the toothbrush mold has also changed from a simple mold to a more complex composite injection mold. It can be seen that the production, installation and debugging of the two-color injection mold will also be very complicated, and the process of installing and debugging the two-color toothbrush mold will also become It is not the same, so it is necessary to understand the production process of the two-color toothbrush mold. The production process of the two-color toothbrush mold mainly includes mold design, mold parts processing, mold installation and debugging, mold acceptance, etc.
1. Mold installation
The installation of the two-color toothbrush mold includes the installation of the movable mold and the fixed mold. The movable mold mainly includes the movable mold plate, the movable mold backing plate, the hot runner, the runner backing plate, the cavity fixed plate, and the cavity. The fixed mold mainly includes the fixed mold plate, the fixed mold backing plate, the push plate, the vertebral rod (thimble), and the mold Core fixing plate, core, etc. The installation of the two-color toothbrush mold generally includes: the assembly of the mold base, the assembly of the core and the cavity, and the installation of the hot runner. Since the important design components of the two-color injection mold design mainly include the mold core and cavity, and the design of the primary and secondary runners, the difficulty of mold installation is mainly concentrated on the installation of the molded parts and runners. Considering the cost of the enterprise, the two-color injection mold uses a rotating shaft mold core molding method to produce products, and the runner adopts a hot runner. Therefore, the use of a rotating shaft core and a hot runner makes the installation and assembly process of the mold extremely complicated. . The correctness of the installation sequence directly affects the assembly accuracy of the mold, and may also lead to the assembly process, so the installation process method is also an important factor in the design of injection molds.
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