Towel rack injection mould

• Product analysis: Mold design is carried out according to the structural characteristics, dimensional accuracy requirements and appearance requirements of towel rack. For example, for towel racks with complex shapes or decorative patterns, the mold design needs to consider how to achieve these details.

• Parting surface design: Reasonable selection of parting surface, not only to facilitate the mold processing and molding parts manufacturing, but also to ensure that the towel rack can be smoothly removed from the mold when stripping, but also to consider the impact of parting face on the appearance of the product.

• Gate design: Select the appropriate gate location and form according to the shape and size of the towel rack and the fluidity of the plastic. Common gate forms include side gate, point gate, latent gate and so on. The location of the gate should avoid defects such as welding marks and gas marks, and ensure that the plastic can evenly fill the cavity.

• Demoulding design: Due to the structural characteristics of the towel rack, special demoulding methods may be required. For towel racks with hooks or raised structures, the corresponding demoulding mechanism should be designed to ensure that the product will not be deformed or damaged during the demoulding process.

Mold material selection: According to the towel rack production batch and quality requirements, choose the appropriate mold material. Commonly used die steel P20, 718, H13 and so on. For large batch towel rack production, high-quality die steel can be selected to improve the wear resistance and life of the die.

Machining technology: CNC machining center, electric discharge machining, wire cutting and other advanced processing technology to ensure the machining accuracy and surface quality of the mold. For example, the cavity and core of a mold can be precisely machined through a CNC machining center, and EDM can be used to process some complex shapes and tiny structures.

Heat treatment and surface treatment: Appropriate heat treatment of the mold, such as quenching, tempering, etc., can improve the hardness, strength and wear resistance of the mold. At the same time, the use of surface treatment technology, such as nitriding, hard chrome plating, etc., can improve the hardness and finish of the mold surface, reduce the friction coefficient, easy to release, extend the life of the mold.

1. Mold closing: The moving mold and the fixed mold accurately close the mold under the action of the guiding mechanism to form a closed cavity.
2. Injection molding: The injection machine will melt the plastic through the pouring system into the mold cavity, under the action of injection pressure, the plastic filled the entire cavity.
3. Pressure retention: After the plastic is filled with the cavity, a certain pressure is continued to be maintained, so that the plastic is compacted and supplemented in the cavity to ensure the dimensional accuracy and density of the product.
4. Cooling: The mold is cooled through the cooling system, so that the plastic is quickly cooled and shaped in the cavity. The cooling time depends on the thickness of the product and the characteristics of the plastic, and generally takes tens of seconds to a few minutes.
5. Mold opening and release: After cooling is completed, the mold is opened, and the release mechanism pushes the molded towel rack out of the mold to complete an injection molding cycle.

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