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Preparation method of hollow original bamboo equal-diameter bamboo tube cylinder

A hollow raw bamboo and bamboo tube technology, which is applied in the direction of manufacturing tools, mechanical equipment, reed/straw treatment, etc., can solve the problems of difficult processing, different cross-sectional sizes, and difficulty in large-scale production of bamboo materials, and achieves easy large-scale production, The method is simple and the effect of improving the utilization rate of bamboo tubes

Active Publication Date: 2020-11-24
ZHEJIANG FORESTRY UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the cross-section of bamboo varies in size and is not a standard circle, especially the rotary-cut bamboo veneer process requires the ellipticity of the bamboo to be as small as possible, and it is difficult to achieve large-scale production of bamboo without shaping
In addition, natural bamboo is prone to cracking during use, which limits its scope of use; it is also easy to attract insects, absorb water and rot easily
[0004] The moisture content of natural bamboo is uneven and generally low, the plasticity is poor, and processing is difficult

Method used

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  • Preparation method of hollow original bamboo equal-diameter bamboo tube cylinder
  • Preparation method of hollow original bamboo equal-diameter bamboo tube cylinder
  • Preparation method of hollow original bamboo equal-diameter bamboo tube cylinder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] (1) Select fresh moso bamboo without mildew and rot defects, with a diameter between 100 and 160 mm, and saw and cut it into bamboo tubes according to the length of use; then, the outer nodes, inner nodes and bamboo partitions of the bamboo tubes are respectively removed from the outer nodes and the inner parts. Remove it on the knot machine, so that the outer joint of the bamboo tube has no protrusion, and the inside is hollow. After sawing, the wall thickness of the small end of the bamboo tube is H 1 , the bulkhead wall thickness is H 2 .

[0033] (2) cutting the bamboo tube. Cut off a part along the longitudinal direction of the bamboo tube, according to the arc length formula or Calculate the size of the central angle corresponding to the arc that needs to be cut out, wherein, the size of the central angle corresponding to the cutout arc, the inner diameter circle is slightly larger than the outer diameter circle, so that the length of the arc length of the sm...

Embodiment 2

[0040] (1) Select fresh moso bamboo without mildew and rot defects, with a diameter between 100 and 160mm, and saw and cut it into bamboo tubes according to the length of use; then, the outer nodes, inner nodes and bamboo partitions of the bamboo tubes are respectively removed from the outer nodes and the inner parts. Remove it on the knot machine, so that the outer joint of the bamboo tube has no protrusion, and the inside is hollow. After sawing, the wall thickness of the small end of the bamboo tube is H 1 , the bulkhead wall thickness is H 2 .

[0041] (2) cutting the bamboo tube. Cut off a part along the longitudinal direction of the bamboo tube, according to the arc length formula or Calculate the size of the central angle corresponding to the arc that needs to be cut out, wherein, the size of the central angle corresponding to the cut out arc, the inner diameter circle is slightly larger than the outer diameter circle, so that the arc lengths of the small head of t...

Embodiment 3

[0048] (1) Select fresh moso bamboo without mildew and rot defects, with a diameter between 100 and 160mm, and saw and cut it into bamboo tubes according to the length of use; then, the outer nodes, inner nodes and bamboo partitions of the bamboo tubes are respectively removed from the outer nodes and the inner parts. Remove it on the knot machine, so that the outer joint of the bamboo tube has no protrusion, and the inside is hollow. After sawing, the wall thickness of the small end of the bamboo tube is H 1 , the bulkhead wall thickness is H 2 .

[0049] (2) cutting the bamboo tube. Cut off a part along the longitudinal direction of the bamboo tube, according to the arc length formula or Calculate the size of the central angle corresponding to the arc that needs to be cut out, wherein, the size of the central angle corresponding to the cut out arc, the inner diameter circle is slightly larger than the outer diameter circle, so that the arc lengths of the small head of t...

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Abstract

The invention discloses a preparation method of a hollow original bamboo equal-diameter bamboo tube cylinder, and relates to the technical field of bamboo processing and utilization. The preparation method comprises the following steps that S1, material selection is conducted; S2, a bamboo tube is prepared; S3, bamboo joints and bamboo partition are removed; S4, calculation and cutting are conducted; S5, the bamboo tube is softened; S6, a regular round table bamboo tube cylinder is shaped and dried; and S7, an equal-diameter bamboo tube cylinder is prepared. According to the preparation method, it is possible for large-scale production of bamboo tubes with certain taper to be hollow and equal-diameter bamboo tubes; and the equal-diameter bamboo tubes can be used for rotary cutting of bamboo veneers, the utilization rate of the bamboo tubes in preparing bamboo veneer decoration materials by a rotary cutting method is greatly increased, the equal-diameter bamboo tubes are also suitable for manufacturing bamboo furniture, bamboo building, bamboo handicraft, guardrails and bamboo outdoor landscape, and are of great significance to improve the utilization rate of bamboo and expand the field of bamboo utilization.

Description

technical field [0001] The invention relates to a method for preparing hollow raw bamboo and equal-diameter bamboo cylinders, belonging to the field of bamboo processing. Background technique [0002] Bamboo grows fast, usually within 3 to 5 years, and is currently the best wood substitute. Bamboo resources are abundant in the south of the Yangtze River in my country. Moso bamboo is the most widely planted bamboo, and there are also bamboos with larger diameters. Such as giant dragon bamboo, dragon bamboo, Yunnan hemp bamboo, and small-leaved dragon bamboo. The bamboo stalks of these bamboos are thick and straight, 30 meters high, 20-30 cm in diameter, and 17-22 cm long between nodes. They are naturally suitable for making structural materials. Therefore, our country has the potential to become a bamboo processing base. Using bamboo instead of natural solid wood can effectively alleviate the current situation of insufficient forest resources in our country. [0003] In additi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27J1/00B27K9/00B27K5/06B27K5/00
CPCB27J1/00B27K5/0085B27K5/06B27K9/002B27K2240/20
Inventor 俞友明张晓春郑伟侯俊峰车文博
Owner ZHEJIANG FORESTRY UNIVERSITY
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