Rotational molding manufacturing mold for large plastic packaging box

By designing cross-dividing plates, vertical partitions and cooling grooves on the outer surface of each template of the roto-molding mold, and combining with the cover seal design, the problems of low cooling efficiency, poor molding quality and safety hazards are solved, and more efficient cooling, better quality molding and safer manufacturing process are achieved.

CN222662391UActive Publication Date: 2025-03-25CIXI DESHUN CONTAINER
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Patent Information

Application Number
CN202421382258.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-18
Publication Date
2025-03-25
Estimated Expiration
2034-06-18

AI Technical Summary

Technical Problem

The existing roto-molding molds are inefficient during cooling, have poor molding quality and have safety hazards, especially the mold deformation and insufficient sealing performance of the bonding surface lead to leakage of plastic powder and internal combustion.

Method used

A large plastic packaging box rotomolding mold is designed. Each template has a cross-dividing plate, a vertical partition plate and a cooling tank, and is sealed by a cover plate, and a liquid inlet and outlet port are set to realize the circulation and circulation of the coolant.

Benefits of technology

By strengthening the structure to prevent deformation of the template, improving sealing performance to prevent leakage of plastic powder, timely and accurately control cooling temperature, improving the manufacturing efficiency and molding quality of rotomolded products, and improving manufacturing safety.

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Abstract

The utility model discloses a rotational molding manufacturing mold for a large plastic packaging box, which comprises a top mold plate, a bottom mold plate, a left mold plate, a right mold plate, a front mold plate and a rear mold plate, and is mainly characterized in that the six mold plates are mutually positioned and spliced according to six surfaces to form a rectangular structure; the outer surface of each template is provided with a plurality of cooling grooves which are separated by a plurality of transverse partition plates and longitudinal partition plates which are vertically connected into a whole in a crossed manner, and the outer surface of each template is provided with a cover plate which covers the template in a sealing manner and a liquid inlet and a liquid outlet which are formed in the cover plate, so that the structural strength of each template can be improved; the situation that the forming quality of a large plastic packaging box is affected by deformation caused by the fact that the area of the template is increased is prevented, cooling liquid can be input through the liquid inlet and the liquid outlet in the cover plate to form circulation among the multiple cooling grooves, the cooling time is shortened, and the manufacturing efficiency of rotational molding products is improved; and the combination surfaces between every two adjacent templates are positioned and assembled by the positioning bulges and the positioning grooves which are reliably sealed, so that rotational molding manufacturing is safer.
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