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A kind of manufacturing method of continuous long bamboo round tube

A manufacturing method and technology for round pipes, which are applied in the direction of manufacturing tools, mechanical equipment, wood processing appliances, etc., can solve the problems of no continuous long bamboo round pipe manufacturing method, low production efficiency of the manufacturing method, and short length of artificial bamboo pipes, etc. The effect of high production efficiency, short maturity period and fast growth rate

Active Publication Date: 2017-10-10
NANJING FORESTRY UNIV
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AI Technical Summary

Problems solved by technology

Although there are inventions and productions of bamboo round tubes at present, most of them are clamped and solidified by internal and external molds, and the length of artificial bamboo tubes is short, the production efficiency of the manufacturing method is low, the amount of molds is large, and a drying room is required. For continuous Long bamboo round pipe manufacture method does not yet have

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0010] The manufacture method of continuous long bamboo round pipe comprises following processing steps:

[0011] a) Manufacture of continuous bamboo veneer rolls;

[0012] b) making the inner wall of the bamboo tube;

[0013] c) The internal model retreats;

[0014] d) Fabrication of the outer wall of the bamboo round tube.

[0015] Said step a) manufacture of continuous bamboo veneer rolls, comprising

[0016] 1) First dry the veneer to a moisture content below 10%, and cut the veneer into strips of a certain width;

[0017] 2) Join the length by teeth or back the non-woven fabric at the end;

[0018] 3) The amount of glue applied on one side is 160g / m 2 The urea-formaldehyde glue glued together grows into rolls.

[0019] Step b) making the inner wall of the bamboo tube: when winding, the inner mold rotates and advances periodically, and a layer of bamboo veneer with a certain inclination to the main axis of the inner mold is first wound on the inner mold, and the vene...

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Abstract

The invention discloses a manufacturing method of a continuous long bamboo round pipe. The manufacturing method comprises the following technological steps: (a) firstly, the inner wall of a bamboo round pipe is cured on an inner mold capable of advancing and retreating; and then, an outer layer is continuously wound on the inner wall; (b) the continuous bamboo round pipe is heated and cured in a tunnel kiln; (c) the bamboo round pipe is wound with a steel strip or a heat-resistant chemical fiber woven belt, so that the bamboo round pipe is pressed in curing; and (d) the processed bamboo round pipe is continuously long. The manufacturing method has the following advantages: the infinite long pipe is manufactured by using a continuously supplied bamboo material; and the manufacturing method is high in production efficiency, and provides the guarantee for high-volume application of the bamboo round pipe to artware, furniture, building and decoration.

Description

technical field [0001] The invention relates to a method for manufacturing continuous long bamboo round tubes, which belongs to the technical field of wood-based panel manufacturing in the wood industry. Background technique [0002] Bamboo has been loved by literati since ancient times. The cylindrical structure of bamboo is a wonderful structure formed naturally. This structure conforms to the principle of equal strength design in material mechanics and can be used as structural and decorative materials, such as the bamboo buildings of the Dai people in Yunnan. It is mainly built using round bamboo. However, it is prone to cracking during use, which limits the scope of use as various structural materials, and it is easy for water, insects, and decaying bacteria to enter it, causing insects and decay to affect its service life. Therefore, development has the artificial round bamboo tube that does not crack, as the basic material of handicraft, decorative material and struc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B27M3/00B27J1/00
CPCB27J1/00B27M3/00
Inventor 李延军许斌程大莉何文梁星宇王刚张晓冬
Owner NANJING FORESTRY UNIV
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