Wet parison product extruding and dewatering mold assembly, plant fiber vacuum forming machine with same, and dewatering technique

Abstract

The invention provides a wet parison product extruding and dewatering mold assembly, a plant fiber vacuum forming machine with the same, and a dewatering technique. The wet parison product extruding and dewatering mold assembly comprises a mold body and an airtight film, wherein the mold body is provided with an air chamber, and the airtight film covers the inner mold surface of the outline of themold body. The plant fiber vacuum forming machine comprises a vacuum forming mold assembly, the wet parison product extruding and dewatering mold assembly and a transfer mold assembly, wherein the vacuum forming mold assembly operates along a vertical guide rail of a molding station, and the wet parison product extruding and dewatering mold assembly and the transfer mold assembly are arranged above the vacuum forming mold assembly and operate along a horizontal guide rail. The dewatering technique is applied to the plant fiber vacuum forming machine, and three procedures of vacuum forming, mold-closing dewatering and transfer discharging are completed circularly. The wet parison product extruding and dewatering mold assembly, the plant fiber vacuum forming machine with the same, and the dewatering technique have the advantages that the pressure of subsequent drying treatment of wet parisons is reduced remarkably, the large-scale product manufacturing efficiency is boosted, the qualityof molded products is improved, and the plastic products have beautiful and smooth appearance and high strength.

Description

technical field [0001] This patent application relates to a fiber pulp adsorption molding device and a process method thereof. Background technique [0002] The fiber pulp adsorption molding manufacturing process can mass-produce paper-plastic products with complex shapes, different specifications, light weight, good strength, and considerable flexible cushioning performance. However, the current manufacturing process is that after the mold is adsorbed and formed in the slurry tank, it is transferred to the transfer mold, and the wet billet is ejected and ejected from the net tray by the transfer mold to move out of the blister station as a whole, or the wet molded product is manually removed, and then sent to the oven. Drying in a dryer or natural drying has the technical problems of high drying cost and long cycle; in addition, in the process of drying the molded wet body or natural drying, a large amount of free water will leave the molded body in many places. The collap...

AI Technical Summary

Problems solved by technology

However, the current manufacturing process is that after the mold is adsorbed and formed in the slurry tank, it is transferred to the transfer mold, and the wet billet is ejected and ejected from the net tray by the transfer mold to move out of the blister station as a whole, or the wet molded product is manually removed, and then sent to the oven. Drying in a dryer or natural drying has the technical problems of high drying cost and long cycle; in addition, in the process of drying the molded wet body or natural drying, a large amount of free water will leave the molded body in many places. The collapse causes the surface of the mold blank to be uneven, and the whole is bark-like folds, which seriously affects the appearance of the product. Even if the free water is separated from the area that is barely collapsed, micro-holes with different pore diameters will be formed in the blank, resulting in The density of the green body is different, which affects the technical performance of the product such as overall strength and hardness; moreover, the existing molding machine process still has technical problems such as high labor intensity for operators, low degree of automation, and low work efficiency

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