Pre-pressing device for producing fire-resistant board

By designing a pre-pressing device that includes a scraper, a sponge roller, and a shovel, the problems of upper template adhesion and lower template gaps were solved, achieving high-quality production of flame-retardant boards and reducing labor intensity.

CN122125799APending Publication Date: 2026-06-02SHANDONG XINXINGHUA SEALING MATERIAL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANDONG XINXINGHUA SEALING MATERIAL CO LTD
Filing Date
2026-04-27
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

When the existing flame-retardant board pre-compression device is completed, flame-retardant raw materials tend to stick to the bottom of the upper template, causing pits, and the gaps in the raw materials inside the lower template cause hollowing, affecting product quality.

Method used

The device design includes a base, electric guide rail, movable base, pre-compression component, cleaning component and leveling component. The upper template is cleaned and dried by components such as scraper, sponge roller and shovel, and the gaps in the raw material in the lower template are filled to reduce adhesion and hollowness.

Benefits of technology

It effectively removes adhering materials from the upper template, keeps the template dry, reduces material waste, improves product quality, and reduces labor intensity.

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Abstract

This invention relates to the field of flame-retardant board production technology, specifically to a pre-compression device for producing flame-retardant boards for refractory materials. The device includes a base, an electric guide rail on the base surface, a movable base on the electric guide rail surface, two lower templates on the movable base surface, a pre-compression assembly on the top of the base, and a stepped frame on the side wall of the base. When the shovel plate moves above the lower templates, a rubber roller moves against the inner wall of the stepped frame. During its movement, the rubber roller rotates due to friction. When the rubber roller rotates, it drives a conical toothed rod to rotate coaxially. The rotation of the conical toothed rod drives a secondary toothed rod to rotate. When the secondary toothed rod rotates, it drives a pulley group on one side to rotate. An eccentric wheel is located at the end of the pulley group. When the eccentric wheel rotates, it reciprocates by pressing the top of the stepped plate, thereby automatically inserting and withdrawing the shovel plate when it moves above the lower templates, reducing the gaps between the flame-retardant raw materials and thus reducing the labor intensity of the operators.
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