Manufacturing method for composite bamboo tube with interchangeable firm joints

A manufacturing method and bamboo tube technology are applied to manufacturing tools, wood processing utensils, reed/straw treatment and other directions, which can solve the problems of large variation of bamboo height taper, irregular diameter and size, etc., and achieve simple production process, light weight, high growth short term effect

Inactive Publication Date: 2020-04-14
NANJING FORESTRY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because the round bamboo wall is thin and hollow, the cross-section is mostly irregular circular, and there is no transverse organization except the bamboo joints, and the taper of the bamboo height varies greatly and the diameters are not standardized. How to design it as a component that can be quickly assembled (such as furniture, bamboo houses, buildings) is another difficulty

Method used

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  • Manufacturing method for composite bamboo tube with interchangeable firm joints

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A kind of manufacture method that the end of bamboo tube is convenient to connect is as follows:

[0027] (1) End treatment of round bamboo: select the bamboo tube with a diameter of 76-90mm without bending, cut it into 750mm, dig out 3mm of the bamboo yellow part near the upper 140mm, and chamfer the outer circle of the end by 3mm, and then It is sawed into 4 arc-shaped bamboo slices, the length of separation is 140mm near the end, and the bottom of the groove is a circular hole larger than the notch.

[0028] (2) Variable cross-section at the end of round bamboo: heat-treat the bamboo in a saturated steam pressure tank at a temperature of 180°C for 15 minutes, and bend the arc-shaped bamboo pieces at the end of the bamboo inwards to form the shape, and compress the end to an outer diameter The ring shape of 70mm fits exactly with the diameter of the corresponding assembly hole. And dry it to a moisture content of 10-15%.

[0029] (3) Solid standardization treatment ...

Embodiment 2

[0031] A kind of manufacture method that the end of bamboo tube is convenient to connect is as follows:

[0032] (1) End treatment of round bamboo: choose fresh moso bamboo tubes with a diameter of 80-100mm without bending, saw and cut them into 2400mm, dig out 3mm of the bamboo yellow part near the upper 200mm, and chamfer the outer circle of the end by 3mm, and then It is sawed into 8 arc-shaped bamboo slices, the separation length is 200mm near the end, and the bottom of the groove is a circular hole larger than the notch.

[0033] (2) Variable cross-section at the end of round bamboo: heat-treat the bamboo in a saturated steam pressure tank at a temperature of 180°C for 12 minutes, and bend the arc-shaped bamboo pieces at the end inwards to shape the end, and compress the end to an outer diameter The ring shape of 70mm fits exactly with the diameter of the corresponding assembly hole. And dry it to a moisture content of 10-15%.

[0034] (3) Solid standardization treatmen...

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Abstract

The invention relates to a manufacturing method for a composite bamboo tube with interchangeable firm joints. The manufacturing method is characterized by comprising the following process steps of: (1) treating the end parts of round bamboos, (2) variable cross-sections of the end parts of the round bamboos, and (3) carrying out solid normalization processing on the end parts of the round bamboos.After the end of the round bamboo is slotted, the arc-shaped bamboo chips at the end of the round bamboo can be bent inwards or outwards to the required size, and the filled resin is quickly cured toform the end with a standard section, so that the end can be easily connected with sawn timber, the round bamboo and the like. The composite round bamboo is low in production cost, the machining process is controllable, the forming period is short, the section size of the connecting end can be machined according to design, automatic production is facilitated, and interchange and rapid assembly are achieved. The material can be widely applied to furniture, home furnishing, bamboo buildings and the like, and is a sustainable environment-friendly material.

Description

technical field [0001] The invention relates to a manufacturing method of a composite bamboo tube with interchangeable and firm joints, which belongs to the technical field of bamboo processing in the wood industry. Background technique [0002] With the shortage of wood resources and the enhancement of people's awareness of environmental protection, finding ideal substitute materials has become an urgent problem to be solved in the home and construction industries. [0003] As a biological material, bamboo produces about 30 centimeters per day, which is faster than any other plant. The cylindrical structure of bamboo is a wonderful structure formed naturally. This structure conforms to the equal-strength design principle in material mechanics and is one of the As one of the best raw materials for structural materials, it has the characteristics of high strength, good elasticity, stable performance, and low density. It is one of the most environmentally friendly and efficien...

Claims

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Application Information

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IPC IPC(8): B27M3/00B27J1/00B27K5/00B27K9/00
CPCB27J1/00B27K5/00B27K5/0085B27K9/002B27M3/00
Inventor 许斌顾文丽曾诗轶王新洲程大莉朱伟
Owner NANJING FORESTRY UNIV
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