Cooling mechanism of PET storage basket injection mold

By setting multiple cooling water holes in the PET storage basket injection mold, using cooling water to quickly cool and shape the rubber at the PET storage basket and the gate, the problem of difficult to quickly cool the rubber in the mold cavity in the prior art is solved, and high gloss, high transparency and high yield are achieved.

CN222645262UActive Publication Date: 2025-03-21TAIZHOU UNI MOULD&PLASTIC TECH CO LTD
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Patent Information

Application Number
CN202420651606.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-01
Publication Date
2025-03-21
Estimated Expiration
2034-04-01

AI Technical Summary

Technical Problem

When injection molding PET materials, it is difficult for the prior art to quickly cool the hot melted glue in the mold cavity, resulting in the product that may turn white, affecting the effect of high gloss and high transparency and yield.

Method used

A cooling mechanism for a PET storage basket injection mold is designed. By setting a cooling water hole, a cooling water hole on both sides, a large cooling water hole in the center and a small cooling water hole around it, the cooling water is used to quickly cool and shape the rubber at the PET storage basket and the gate.

Benefits of technology

It achieves efficient cooling and shaping, ensures the high gloss and high transparency of the PET storage basket, improves the product yield, and ensures the aesthetic appearance of the product.

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Abstract

A cooling mechanism of a PET storage basket injection mold comprises an upper compound plate and a lower compound plate, a fixed mold plate is arranged below the upper compound plate, a pouring inlet is formed in the fixed mold plate, a movable mold plate is arranged on the lower compound plate, a movable mold core, a movable mold insert and a side core-pulling structure are arranged on the movable mold plate, an upper cooling water hole and two side cooling water holes are formed in the fixed mold plate, and the upper cooling water hole and the two side cooling water holes are formed in the lower compound plate. A large cooling water hole in the center and small cooling water holes in the periphery are formed in the movable mold core, a water guide column is arranged in the large cooling water hole, a spiral flow guide groove is formed in the outer wall of the water guide column, a water inlet hole is formed in the center of the water guide column, and water separation pieces are arranged in the small cooling water holes and divide the small cooling water holes into a water inlet waterway, a water outlet waterway and a communication waterway. Transverse through holes are formed among the small cooling water holes, a water inlet and a water outlet are formed in the movable mold plate, the water inlet is communicated with a water inlet waterway of the leftmost small cooling water hole, and the water outlet is communicated with a water outlet waterway of the rightmost small cooling water hole.
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