Specially shaped wood fiber molded product enclosed forming method

Abstract

The invention discloses a specially shaped wood fiber molded product enclosed forming method. The method sequentially includes processes of drying, blending, mat formation, pre-pressing and hot press molding. By means of the method, the moisture content of wood fibers is kept in 8% to 18%, during hot press molding, the temperature is controlled between 95 DEG C to 130 DEG C, the hot-press pressure is controlled between 30kg / cm2 to 110kg / cm2, and the hot-pressing time is controlled between 2.5 minutes to 28 minutes. According to the method, the moisture content in the wood fibers is increased so as to increase heat transfer rate in products, the time consumed by a heated object core layer which reaches curing temperature in a glue process is shortened, the producing efficiency is increased, moreover, the heating temperature is properly lowered so as to eliminate phenomena of product layering and surface bulging in the compression molding process, and qualities of wood fiber molded products are improved.

Description

technical field [0001] The invention belongs to the technical field of wooden furniture manufacturing, in particular to a manufacturing method of special-shaped wood fiber molded furniture parts. Background technique [0002] At present, the production of special-shaped furniture parts is mainly through mechanical and hand-carving methods to obtain special-shaped decorative surfaces with complex and exquisite patterns or patterns. The furniture parts produced by mechanical and manual carving are mainly made of solid wood, and about 75% of the wood cannot be effectively used in the carving process, resulting in a substantial increase in the direct cost of producing furniture; at the same time, mechanical and manual carving requires a lot of Processing machinery and labor hours, low production efficiency and high labor costs. Moreover, my country is a country with relatively poor forest resources, with an annual shortage of more than 600 square meters of wood, and the wood ut...

AI Technical Summary

Problems solved by technology

[0003] The applicant applied for a special-shaped wooden molded furniture part and its manufacturing method on November 15, 2010. The manufacturing method sequentially includes pretreatment of raw materials—gluing—gluing—molding—prepressing— —Heating molding——holding pressure—post-treatment process, the moisture content of the wood material is controlled at 6-14%, the hot-pressing temperature is 175-190°C, preheated by microwaves and then hot-pressed in the mold. Used to make wood fiber solid parts, the molding time is long, the production efficiency is low, the material consumption is high, and the product is prone to delamination, bulging, etc., so it is necessary to improve the above defects