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A high-efficiency continuous crack-free flattening method for bamboo

A continuous, crack-free technology, applied in the direction of mechanical equipment, sugarcane machining, etc., can solve the problem of high compressive strength of pressure tanks, and achieve the effect of reducing strength, reducing harsh environment, reducing quality and aesthetic requirements

Active Publication Date: 2018-01-12
NANJING FORESTRY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These provide sustainable raw materials for the development of bamboo processing in my country. Because of its sustainable source of raw materials, high utilization rate and beautiful texture, the flattening of bamboo tubes still requires high-pressure high-temperature steam (such as 180°C) ), requires a special boiler, and requires a high compressive strength of the pressure tank (requires a minimum of 1.8MPa)

Method used

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  • A high-efficiency continuous crack-free flattening method for bamboo

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Embodiment 1, as shown in the accompanying drawing

[0027] The high-efficiency continuous non-crack flattening method of bamboo tubes comprises the following process steps:

[0028] Step (1) Pre-treat the fresh bamboo tubes; after 6 days of cutting, the bamboo tubes are cut off as required, and then through a combination of equipment, the inner nodes, green bamboo and outer nodes are removed at the same time, and then a 4mm wide vertical straight line sawing slit is cut on the bamboo tubes .

[0029] Step (2) Put the bamboo tube into the heating pipeline for heat treatment, put the saw kerf of the bamboo tube up, and align it with the positioning device on the slideway, put it on the slideway, and the bamboo tube enters the pipeline preheating chamber A, preheating chamber B, high temperature In the steam heating room and the heat preservation room, the corresponding temperatures are 40°C, 60°C, 130°C and 100°C respectively. By controlling the partition doors in the m...

Embodiment 2

[0032] Embodiment 2, as shown in the accompanying drawing, the efficient continuous non-crack flattening method of bamboo tube comprises following processing steps:

[0033] Step (1) Pre-treat fresh bamboo tubes; after 8 days of felling, the bamboo tubes are cut off as required, and then through a combined device, the inner nodes, green bamboo and outer nodes are removed at the same time, and then a 5mm-width vertical straight-line sawing kerf is cut on the bamboo tubes .

[0034] Step (2) Put the bamboo tube into the heating pipeline for heat treatment, put the saw kerf of the bamboo tube up, and align it with the positioning device on the slideway, put it on the slideway, and the bamboo tube enters the pipeline preheating chamber A, preheating chamber B, high temperature In the steam heating room and the heat preservation room, the corresponding temperatures are 80°C, 100°C, 160°C and 120°C respectively. By controlling the partition doors in the middle of the heating pipe, t...

Embodiment 3

[0037] Embodiment 3, as shown in the accompanying drawing, the efficient continuous non-crack flattening method of bamboo tube comprises following processing steps:

[0038] Step (1) Pre-treat fresh bamboo tubes; after 8 days of felling, the bamboo tubes are cut off as required, and then through a combination of equipment, the inner nodes, bamboo green and outer nodes are removed at the same time, and then a 6mm wide vertical straight line sawing slit is cut on the bamboo tubes .

[0039] Step (2) Put the bamboo tube into the heating pipeline for heat treatment, put the saw kerf of the bamboo tube up, and align it with the positioning device on the slideway, put it on the slideway, and the bamboo tube enters the pipeline preheating chamber A, preheating chamber B, high temperature In the steam heating room and the heat preservation room, the corresponding temperatures are 60°C, 80°C, 145°C and 110°C respectively. By controlling the partition doors in the middle of the heating ...

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Abstract

The invention is a high-efficiency continuous non-crack flattening method for bamboo, which includes the following process steps: (1) pretreatment of fresh bamboo tubes; (2) heating of bamboo tubes into heating pipes; (4) post-processing of flattened bamboo slices. Advantages: Fresh round bamboo tubes are placed in high-temperature separated pipes with a temperature of 130-160 °C, using high-temperature superheated steam for rapid heating and humid heat treatment, so that the temperature of the bamboo tubes reaches the softening point of lignin, cellulose and hemicellulose. In the thermal insulation space at one end of the heating process, a plurality of bamboo tubes or bamboo slices with a certain radian are successively flattened and cooled to shape through the flattening rollers that become wider step by step. The processing temperature of bamboo flattening and the labor intensity and harsh environment of workers are reduced. The production automation is high, and the finished product does not need to be yellowed. The physical and mechanical properties of flattened bamboo are better, and the color is beautiful. It is suitable for making handicrafts and furniture. And home improvement use.

Description

technical field [0001] The invention relates to a high-efficiency continuous crack-free flattening method for bamboo, which belongs to the technical field of bamboo processing in the wood industry. Background technique [0002] my country is rich in bamboo resources. In 2011, the bamboo forest area was 5.381 million hectares and 1.644 billion bamboo roots. These provide sustainable raw materials for the development of bamboo processing in my country. Because of its sustainable source of raw materials, high utilization rate and beautiful texture, the flattening of bamboo tubes still requires high-pressure high-temperature steam (such as 180°C) ), requires a special boiler, and requires a pressure tank with high compressive strength (minimum 1.8MPa). This is mainly because it is processed in a high-temperature tank, and then the bamboo tube in the tank is taken to the cold environment of the workshop to be flattened, because the temperature of the workshop is only 10-30°C, the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B27J1/00
CPCB27J1/00
Inventor 李延军许斌张齐生王新洲
Owner NANJING FORESTRY UNIV
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