Unstressed flattening device and method for cylindrical bamboo wood with bamboo green and tabasheer

Abstract

The invention discloses an unstressed flattening device and method for cylindrical bamboo wood with bamboo green and tabasheer. The device structurally comprises a motor, a motor base, a protective cover, a knife roll, a flattening roll, an air cylinder, a flattering roll bearing sliding base, a sliding groove, a limiting bolt, a knife roll bearing fixing base, a chain and a gearbox. The flattening method comprises the steps of (1) heating the bamboo wood to reach the glass-transition temperature, (2) rapidly flattening the bamboo wood in an unstressed mode, (3) planing the bamboo green, (4) planing the tabasheer with the fixed thickness, and (5) conducting drying through overlapping and stacking in a tabasheer face-to-face mode or pressure drying. The unstressed flattening device and method for the cylindrical bamboo wood with the bamboo green and the tabasheer have the advantages that only one pair of rolls, namely the upper flattening roll and the lower knife roll are needed, the structure is simple, maintenance is convenient, operation is easy, the device and method can be suitable for flattening bamboo cylinders with different diameters, and the flattening effect is good; flattening of the heated bamboo cylinders in a heating tank is rapidly finished within 3 min to 5 min, fixed-thickness planing is conducted, most cracks of the tabasheer face are planed away when the tabasheer is planed, the tabasheer is in the adhesive face when finished products are formed, and the appearance and the strength are not affected.

Description

technical field [0001] The invention relates to a stress-free flattening device and a flattening method for tubular bamboo with bamboo greens and bamboo springs. The invention belongs to the technical field of bamboo processing and utilization. Background technique [0002] Bamboo is thin-walled and hollow, and can be divided into bamboo green, bamboo flesh, and bamboo spring from the outside to the inside. The three have different structures and performances, which makes it difficult for mechanized and automated processing of bamboo. The material utilization rate and labor production efficiency of traditional bamboo processing methods are very low, which seriously restricts the survival and development of the bamboo processing industry. If the cylindrical bamboo can be flattened into a straight shape by simple methods and equipment, it will open up a new way for the industrial utilization of bamboo, and this technology has attracted attention from all walks of life. In th...

AI Technical Summary

Problems solved by technology

Although this unfolding method achieves the purpose of flattening the bamboo, the bamboo is curved after being flattened, and there is stress inside; And bottom molds with different concave radians, the equipment structure is complicated, when the diameter of the flattened bamboo changes a lot, it is easy to crack or the flattening effect is not good.

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