Injection mold type: three-plate mold
author: Universe plastic
2024-01-27
The 3-plate mold is a type of injection mold consisting of three mold plates. By setting up a pouring system in the middle of the mold to separate the injection molding cavities of plastic products, it can support the injection molding production of plastic products with more complex shapes.
The three-plate mold is composed of a front template, a rear template and a movable plate. The structure of the three-plate mold has one more movable plate in the middle than the two-plate mold.

Working principle of three-plate mold
1. Movable template: includes cavity and gate, as well as movable plate and fixed template to close the mold.
2. Movable plate: Includes runners and gates, which guide molten plastic to the cavity after the mold is closed.
3. Fixed template: including the core, fixed on the injection molding machine, and used with the movable plate and movable template to close the mold
Three-plate mold manufacturing steps
1. Mold design
Use CAD software for mold design to determine the product geometry, gate location and mold structure. Perform runner design simulation on the mold to ensure that the molten plastic fills the cavity evenly.
2. Mold manufacturing
Use CNC and EDM to process mold parts and cavities with high precision, including movable platen plates, fixed platen plates and gate plates.
3. Assembly and debugging
Assemble the movable formwork, fixed formwork and gate plate, and install guide posts, guide sleeves and ejection systems.
4. Carry out mold trial and debugging
Ensure that all parts of the 3-plate mold operate in a coordinated manner and the injection molded product can be demoulded smoothly.
Characteristics of three-plate mold
1. Flexible gate design
Because three-plate molds are able to separate the gating system from the product, gates can be placed in more flexible locations, which helps reduce stress concentrations and surface defects in the product.
2. Automatic demoulding
Three-plate molds can make the demoulding process simpler and more automated, and are especially suitable for the production of small and complex products.
3. Complex structural products
Suitable for manufacturing complex plastic products, especially those with multiple parting surfaces.
Summarize
Three-plate injection molds can produce complex, high-precision plastic products to meet various high-demand application needs.
Dongguan Universe Plastic Factory is a professional injection mold manufacturer with more than 15 years of experience in mold manufacturing services. It insists on investing in advanced processing equipment and talents to meet customer manufacturing needs.
If you are looking for a high-quality mold manufacturer, please contact us to get the latest service quotation.
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Injection molded manufacturing products: plastic strips
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