Pulp molding product forming device and paper-molding mold thereof

By designing unique fastening screws, the problem of the guide structure deformation caused by thermal expansion and contraction of paper molds is solved, and high-precision molding and pulp molded products are achieved.

CN111593614BActive Publication Date: 2025-03-18JUST ECO TECH CO LTD
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Patent Information

Application Number
CN202010436825.3
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2020-05-21
Publication Date
2025-03-18
Estimated Expiration
2040-05-21

AI Technical Summary

Technical Problem

The existing paper molds have deformation due to thermal expansion and contraction, resulting in the problem of inability to accurately guide and close the mold.

Method used

A unique fastening screw is designed, including an external threaded part, a cylinder part and a head part. The outer diameter of the external threaded part is smaller than the inner diameter of the mounting hole, the outer diameter of the cylinder part is smaller than the inner diameter of the mounting hole, and the length of the cylinder part is equal to or greater than the height of the mounting hole, so that the molding mold can expand freely when heated expansion.

Benefits of technology

Through this design, the positioning pin of the guide structure can be accurately inserted into the positioning socket, maintaining high mold clamping accuracy, and ultimately ensuring that the quality of the pulp molded products meets the standards.

✦ Generated by Eureka AI based on patent content.
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Abstract

The present invention provides a pulp molded product forming device and a paper-molding mold thereof, belonging to the technical field of pulp molding equipment. The paper-molding mold includes a forming mold with a guide structure, a mold mounting plate, and a fastening screw for connecting the forming mold to the mold mounting plate; the forming mold is provided with a plurality of axially vertical mounting holes; the fastening screw includes a head, a columnar portion, and an external threaded portion connected in sequence; the outer diameter of the columnar portion is smaller than the inner diameter of the mounting hole, and the length of the columnar portion is equal to or greater than the height of the mounting hole; the outer diameter of the external threaded portion is smaller than the inner diameter of the mounting hole, and the inner diameter of the external threaded portion is larger than the outer diameter of the columnar portion; the mold mounting plate is provided with a corresponding connection hole threadedly connected to the external threaded portion. The present invention has a novel structure, is practical and stable, and solves the technical problem that the guide structure of the existing paper-molding mold is deformed due to thermal expansion and contraction, thereby resulting in the inability to accurately guide the mold.
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