Vertical type pouring manufacturing method of decorative gypsum board

Abstract

The invention relates to a vertical type pouring manufacturing method of a decorative gypsum board; a vertical rigid external mold and a flexible internal mold arranged in the external mold are adopted, injection ports (4) communicated to an inner cavity (3) of an internal mold are arranged at the bottoms of the external mold and the internal mold, air exhausts (5) communicated with the inner cavity are arranged at the tops of the external mold and the internal mold; the external mold is formed by a left half external mold (1a) and a right half external mold (1b) in an involution way; the internal mold is formed by a left half internal mold (2a) and a right half internal mold (2b) in the involution way; when in pouring, gypsum slurry is injected into the inner cavity through the injection ports until the inner cavity is full of the gypsum slurry; and after the gypsum slurry is solidified, the external mold is opened and the internal mold is taken down, so as to obtain a decorative gypsum board which is solidified and formed in the inner cavity. In the method, air bubbles can be effectively removed in the manufacturing process, so as to prevent air holes from being remained in the gypsum board; and a manufactured product has good quality, the mechanical and standard production can be realized and the production efficiency is high.

Description

Technical field [0001] The invention belongs to the technical field of decorative gypsum board manufacturing methods. Background technique [0002] The decorative gypsum board is made of flexible molds because of its small thickness and low strength, so it is easy to be damaged when taking the mold. When taking the mold, slowly lifting the flexible mold can effectively prevent the solidified decorative gypsum board from being damaged. Due to the use of flexible molds, for a long time, the methods of making decorative gypsum boards have been flat-laying methods, that is, the bottom mold of the flexible mold is laid flat, and the gypsum slurry is poured into the inner cavity of the bottom mold. The bottom mold is mechanically vibrated to fill the inner cavity of the gypsum slurry, and at the same time, remove some of the air bubbles generated during the production process. Then, the gypsum slurry is flattened along the upper surface of the bottom mold, and then pressed into the upp...

AI Technical Summary

Problems solved by technology

This method not only has low production efficiency and high labor intensity, but also causes gypsum slurry to splash, which often makes the operators dirty and pollutes the working environment. The quality of the decorative gypsum boards produced is difficult to guarantee, mainly because the Pressing in manually requires a high level of operating skills for workers, which often results in uneven frame size and thickness of gypsum boards, and large size deviations, which seriously affect subsequent installation and use. What is more serious is that air bubbles generated during the production process Difficult to remove and remain in the solidified gypsum board, reducing the strength and appearance quality of the gypsum board

Also due to the long-term influence of the inertial thinking that decorative gypsum boards can only be produced flat, decorative gypsum boards have also remained at the level of manual and semi-manual production, and it is difficult to achieve mechanized and automated production. Difficult to improve and difficult to increase output

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