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All-bamboo tapered-joint extension material and manufacturing method thereof

A production method and a technology of taper joint, which is applied in the field of materials, can solve the problems of no patent and non-patent literature on the taper connection of bamboo, the inability to guarantee the concentricity of the center of the bamboo connection, and the low tenon joint strength, so as to overcome the defects of inconsistent bamboo shapes , Achieving axis consistency and facilitating connection operations

Inactive Publication Date: 2015-01-21
BEIJING FORESTRY MACHINERY RES INST OF STATE FORESTRY ADMINISTRATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the hollow whole bamboo, the tenon joint technology cannot guarantee the central coaxiality of the connected bamboo, and at the same time, the contact area of ​​the tenon fingers is limited, resulting in low tenon joint strength
[0003] After searching, there is no patent and non-patent literature about the conical connection of bamboo

Method used

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  • All-bamboo tapered-joint extension material and manufacturing method thereof
  • All-bamboo tapered-joint extension material and manufacturing method thereof
  • All-bamboo tapered-joint extension material and manufacturing method thereof

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Embodiment Construction

[0034] The following examples illustrate possible implementations of the present invention, but they are not intended to limit the protection scope of the present invention and are described in advance.

[0035] The present invention will be further described below in conjunction with the accompanying drawings and a preferred embodiment.

[0036] refer to figure 1 Shown is the process flow diagram of a preferred embodiment of the present invention. A method for manufacturing whole bamboo taper extension materials, comprising the following steps

[0037] (1) The original whole bamboo selected is moso bamboo, and the length of bamboo segment 1 is cut according to its curvature and taper, among which: the surface circle runout of bamboo segment 1 is ≤10mm (measuring the bending of bamboo segment), and the taper ((big end diameter - small end diameter) / length of bamboo section) ≤ 0.02, the fracture is perpendicular to the axis of bamboo section 1, and bamboo section 1 is obtaine...

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Abstract

The invention discloses all-bamboo tapered-joint extension material which is formed by connecting a group of bamboo segments in sequence. The outer surface of one end of each bamboo segment is a tapered outer surface gradually shrinking to the end to form a male joint, and the inner surface of the other end of the bamboo segment is a tapered inner surface gradually expanding to the end to form a female joint; at connecting ends of two adjacently connected bamboo segments, the tapered outer surface is inserted into the tapered inner surface, and a glue layer is arranged between the outer surface and the inner surface. The problem that natural bamboo is hard to lengthen and has application limitations is solved. Longitudinal extension is achieved. Natural structure of the bamboo is kept. Utilization rate of the bamboo and added value of products are increased. Bamboo material in any length can be manufactured according to different needs, and accordingly bamboo application field is widened. The invention further provides a manufacturing method of the all-bamboo tapered-joint extension material.

Description

technical field [0001] The invention belongs to the field of materials, in particular to a whole-bamboo cone-jointed extension material which can improve the utilization rate of natural bamboo by using natural bamboo as a raw material and a manufacturing method thereof. Background technique [0002] Bamboo forest is known as the second largest forest on earth. China has the largest bamboo forest in the world. The development of bamboo resources is of great significance to my country's economic and ecological construction. Bamboo has a short growth cycle and is a green and sustainable material. In addition, the structure of the hollow belt joints of the bamboo makes the bamboo have the advantages of high longitudinal tensile strength, compressive strength, bending strength, good elasticity, etc., and is an excellent industrial biomass raw material. At present, bamboo is widely used as a raw material for biomass industry, not only through the modification of bamboo to produce...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B27D1/10B27F1/16
Inventor 傅万四赵章荣刘星雨周建波韩望
Owner BEIJING FORESTRY MACHINERY RES INST OF STATE FORESTRY ADMINISTRATION