Method and apparatus for flattening bamboo wood without flaws

A crack-free bamboo technology, applied in wood treatment, wood processing equipment, wood treatment details, etc., can solve the problems of bamboo inner wall cracking, difficult to meet, difficult to flatten bamboo boards, etc.

Inactive Publication Date: 2004-03-31
刘觉春
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The method and equipment for flattening bamboo involved in the above-mentioned patents or applications mainly still directly rely on a little plasticity of the softened bamboo to extend the arc length of the inner wall of the bamboo along the circumferential direction when flattening the bamboo, so that when flattening the bamboo, When the cross-section of bamboo has a large radian (the length difference between the inner and outer wall arc lengths is also large), this point of plasticity is difficult to meet the needs of expanding the arc length of the inner wall of the bamboo along the circumferent

Method used

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  • Method and apparatus for flattening bamboo wood without flaws
  • Method and apparatus for flattening bamboo wood without flaws
  • Method and apparatus for flattening bamboo wood without flaws

Examples

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Example Embodiment

[0011] Example one, in figure 1 with figure 2 There are two axially parallel rolls, the bottom one is smooth roll 1, the top one is toothed roll 2. The circumferential surface of toothed roll 2 is evenly covered with teeth 3, and the length direction of teeth 3 is The longitudinal direction of the roll is equal to the length of the roll. The cross-sectional shape of the teeth 3 is preferably an isosceles triangle. The tooth pitch of two adjacent roller teeth is preferably less than or equal to 3 mm, and the tooth height is preferably less than or equal to 2 mm. The tooth surface roller 2 is like a triangular spline shaft. Remove the bamboo green and outer section; split; remove the bamboo yellow and inner section; preheat; reheat to soften one side of the arc-shaped section of bamboo 4, and feed it from the left side of the two rollers Note that the inner wall surface 5 (that is, the concave surface) of the bamboo material 4 is in contact with the toothed roller 2 and the outer ...

Example Embodiment

[0013]The second embodiment, in Figure 3 and Figure 4, there are two rows of rollers 9, 10, 11,...M...N and 12, 13, 14,...P...Q, the rollers The axes are parallel to each other. The upper and lower rows of rolls correspond to each other one-to-one, that is, the upper row of rolls 9 and the lower row of rolls 12 form a corresponding pair of each other, the upper row of rolls 10 and the lower row of rolls 13 form a corresponding pair of each other. The roll M in the row and the roll P in the lower row form a pair corresponding to each other, and the roll N in the upper row and the roll Q in the lower row form a pair corresponding to each other. The working sides of each row of rolls are adjusted on the same plane. The lower rows of rolls 12, 13, 14, ...P...Q are all smooth rolls, and their axial lengths are best to be aligned with the axis of the last roll Q The length of the upper row of rollers is equal or slightly longer; the upper generatrix of their outer circular surface is th...

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Abstract

A method of spreading bamboo material without cracks and its device. First, remove bamboo green portion and outside nodes, cut open the bamboo sections, remove bamboo yellow portion and inner nodes, preheat to make bamboo sections soft, apply rollers with teeth to press and roll longitude grooves in the inner wall of bamboo material, to extend the arc length of bamboo material, thus flat bamboo material. The bamboo material could be fed along circumference of bamboo or in longitude direction, so there have two kinds of flatting devices: one has a smooth roller, a longitude toothed roller parallel to the smooth roller; another has two rows of rollers, each roller on one of rows has at least two teeth along the circumference, each end of the next roller have at least one more tooth than that of the former roller. when spreading bamboo material with more than 180íÒ,there wouldn't have cracks, then a flat bamboo plate is obtained.

Description

technical field [0001] The invention relates to a technique for flattening bamboo, in particular to a method for flattening bamboo without cracks and a device used therefor. Background technique [0002] In order to obtain wide flat bamboo boards, it is necessary to flatten the bamboo with a curved cross-section after cutting. However, because the fibers of bamboo grow in the axial direction, its tensile capacity in the circumferential direction is extremely weak; and because the structure of bamboo is cylindrical and has a certain thickness, the circumferential lengths of the inner and outer walls are different, and the outer wall The circumferential length of the bamboo is greater than the circumferential length of the inner wall, which brings difficulties to flatten the bamboo, because in order to flatten the bamboo, it is necessary to expand the arc length of the inner wall of the bamboo under the same arc along the circumferential direction to be equal to the outer wall...

Claims

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Application Information

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IPC IPC(8): B27D1/08B27D5/00B27K5/00B27K5/06
Inventor 刘觉春
Owner 刘觉春
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