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Injection mold for plastic shell fixed mold inclined guide pillar core pulling

by:Vowin Rapid Prototyping     2023-02-16
1. Structural analysis of plastic parts

Plastic shell injection mold fixed mold inclined guide column core-pulling, Shanghai Mulan Injection Mold Factory molding parts and plastic parts have large length and complex structure, and there are many places that need lateral core-pulling, injection mold gating system, lateral The design of the core-pulling mechanism is difficult.

2. Mold structure analysis

The customer requires one out of two, and the cavity adopts the mandarin duck ranking method. Due to the complex structure and large length of the plastic parts, Shanghai Mulan Injection Mold Factory adopts a point gate casting system. Injection molds have many lateral core-pulling mechanisms, and the inner core-pulling design and production of fixed molds are more difficult. The plastic part is ejected by multiple flat push rods, which is a helpless choice based on the structure of the plastic part.

3. Mold working process

The plastic shell injection mold is core-pulled from the inclined guide pillar of the fixed mold, and the melt enters the two cavities through the point gate gating system. The point gate is broken, and the runner aggregate is pulled out from the movable formwork. At the same time, the locking block is separated from the slider, and under the action of the inclined guide column, the slider completes the core pulling of the front mold. Then the mold is opened from the parting surface 2, and the stripper plate pushes the runner condensate out of the mold. The mold is opened from the parting surface, and the plastic part is separated from the fixed mold cavity. At the same time, the movable mold slider and the inclined guide pillar complete the lateral core pulling. Shanghai Mulan Injection Mold Factory The top stick of the injection molding machine pushes the push rod fixed plate and the flat push rod to push the plastic part out of the moving mold cavity. The injection mold completes one injection molding.

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