Bottle preform injection mold with rapid cooling channel

By introducing L-shaped guide frames, Z-shaped grooves, and optimizing the cooling pipe design in the preform injection mold, the problems of mold manufacturing complexity and inaccurate positioning were solved, achieving high-precision, low-cost mold production and rapid cooling effect.

CN224545178UActive Publication Date: 2026-07-24WUHAN HUAXINDA BEVERAGE CO LTD
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Patent Information

Application Number
CN202521719648.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-13
Publication Date
2026-07-24
Estimated Expiration
2035-08-13

AI Technical Summary

Technical Problem

The existing bottle preform injection mold manufacturing and assembly processes are complex and require high processing precision, which leads to increased manufacturing costs, inaccurate alignment of the upper and lower molds, and severe mold wear, affecting the product molding accuracy and service life.

Method used

The design employs a bidirectional support structure with L-shaped guide frames and Z-shaped guide grooves, combined with rectangular guide rods and U-shaped right-angle mortise design to enhance mold opening and closing accuracy; threaded connections and bolt fixation ensure rigid connection and synchronous movement of all components; and the optimized cooling pipe layout increases cooling area and uniformity.

Benefits of technology

It simplifies the mold structure, reduces manufacturing costs, improves mold opening and closing accuracy and service life, ensures product molding quality, and enhances cooling efficiency and uniformity.

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Abstract

The utility model discloses a bottle preform injection mold with a rapid cooling channel, which relates to the technical field of bottle preform injection molds and comprises a first injection molding frame, a second injection molding frame, a third injection molding frame, a fourth injection molding frame and a positioning groove. The folding and unfolding mechanism comprises a third injection molding frame, a fifth injection molding frame, a guide frame, a guide groove and a guide bolt, the guide frame is fixedly connected to the side edge of the first injection molding frame, two L-shaped guide frames distributed in an oblique symmetry mode are vertically fixed to the side edge of the first injection molding frame, and the side edge of each guide frame is provided with a Z-shaped guide groove; according to the structure, stress of the folding and unfolding mechanism is balanced through two-way supporting of the L-shaped guide frame and oblique symmetry arrangement, inclined clamping during sliding is avoided, transverse displacement of the guide bolt is limited through the fold line track of the Z-shaped guide groove, then the stability of the folding and unfolding process is enhanced, and the mold opening and closing precision is ensured.
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