Bamboo block thermal shaping method and device

Abstract

The invention discloses a bamboo block thermal shaping method and device. The bamboo block thermal shaping method provided by the invention is a machining method for implementing the shaping of the walls of the bamboos and comprises the following steps of: extruding and unfolding bamboo blocks by utilizing multiple grades of bunching gradient profile rollers by means of certain thermoplasticity of the walls of the bamboos which are boiled and are softened at high temperature under the allowed condition of horizontal allowed stress of the bamboo materials, and cooling and shaping. The device provided by the invention mainly comprises a horizontal support roller and lateral guide rollers, wherein the horizontal support roller which is used for conveying arc bamboo blocks is installed below the foremost end of a rack platform; the lateral guide rollers are installed at two sides at the front end of the rack platform; the rack platform is also sequentially provided with a first grade profile roller, other multiple-grade profile rollers and multiple-grade cooling and shaping rollers; and the profiles of the upper roller and the lower roller of each grade profile roller are matched with a flower-type unfolding pattern of the shaping for the bamboo materials. The device provided by the invention is simple in structure, and is convenient to use, and the integrity and horizontal intensity of the walls of the bamboos after being shaped are ensured, thus the arc bamboo blocks are unfolded into bamboo sheets with good integrity under the pressure of rolling.

Description

technical field [0001] The invention belongs to the technical field of bamboo processing, and in particular relates to a method and device for thermal shaping of bamboo blocks. Background technique [0002] my country is very rich in bamboo resources. Bamboo forest has the reputation of the second forest. In the case of serious damage to forest resources around the world and declining stock volume, bamboo resources show an obvious growth trend. Bamboo has high strength, good elasticity, stable performance and low density. It is a typical organism with good mechanical properties in nature. At present, as countries limit the harvesting and logging of wood resources, people begin to use more environmentally friendly and fast-growing bamboo materials, and apply them to various fields such as furniture, daily necessities, and building materials. However, bamboo is a hollow cone with a small diameter, generally 10-20m in height, 7-12cm in diameter at breast height, thin and hollo...

AI Technical Summary

Problems solved by technology

[0003] To make raw bamboo into boards or profiles, first of all, the bamboo blocks with arc-shaped cross-section after longitudinal section must be processed into planar bamboo blocks with square cross-section. At present, mechanical cutting method is widely used, that is, chip Cutting, this method is only suitable for arc-shaped bamboo blocks with small radians, and the yield rate is low. It is mostly used for the production and processing of bamboo chips for bamboo flooring and bamboo chopping boards

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