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Processing method of round timber

A processing method and technology of round wood, which is applied in the field of round wood processing technology and operation, can solve the problems of low wood yield and low wood utilization rate, and achieve the effects of high wood yield, high production efficiency and low production cost

Active Publication Date: 2016-06-29
丰胜(广州)建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for processing round wood, which aims to solve the technical problems of low wood utilization rate and low yield rate in the existing round wood processing technology

Method used

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  • Processing method of round timber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] (1) Material selection and truncation: adopt eucalyptus logs with a diameter of 5 cm (error ± 1 cm), and cut them to a length of 35 cm (error ± 5 cm).

[0060] (2) round. Use a rotary cutter to round the log to remove branches, knots and bark on the surface of the log; the thickness of the round is 3 mm.

[0061] (3) Open the stress relief groove 100 . A stress relief groove 100 with a length of 5 centimeters, a width of 2.5 millimeters and a depth of 2 centimeters is formed at both ends of the round material in the direction of the pith center.

[0062] (4) Dry naturally. Choose a place with good ventilation and no sunlight exposure for natural drying. When the moisture content of the log is 35%, the natural drying is completed.

[0063] (5) Kiln drying. The drying process includes:

[0064] a) When the moisture content of the round wood is 30% to 35%, keep the dry bulb temperature in the kiln at 45°C and the wet bulb temperature at 42°C;

[0065] b) When the mo...

Embodiment 2

[0072] (1) Material selection and cutting: use fir logs with a diameter of 10 cm (error ± 1 cm), and cut them into logs with a length of 50 cm (error ± 5 cm).

[0073] (2) round. Use a rotary cutter to round the log to remove branches, knots, and bark on the surface of the log; the thickness of the round is 4 mm.

[0074] (3) Open the stress relief groove 100 . A stress relief groove 100 with a length of 6 centimeters, a width of 4 millimeters and a depth of 5 centimeters is formed at both ends of the round material in the direction of the pith center.

[0075] (4) Dry naturally. Choose a place with good ventilation and no sunlight exposure for natural drying. When the moisture content of the log is 40%, the natural drying is completed.

[0076] (5) Kiln drying. The drying process includes:

[0077] a) When the moisture content of the round wood is 30% to 40%, keep the dry bulb temperature in the kiln at 47°C and the wet bulb temperature at 43°C;

[0078] b) When the mo...

Embodiment 3

[0086] (1) Material selection and cutting: use pine logs with a diameter of 16 cm (error ± 1 cm), and cut them into logs with a length of 60 cm (error ± 5 cm).

[0087] (2) round. Use a rotary cutter to round the log to remove branches, knots and bark on the surface of the log; the thickness of the round is 5 mm.

[0088] (3) Open the stress relief groove 100 . A stress relief groove 100 with a length of 6 centimeters, a width of 5 millimeters and a depth of 8 centimeters is opened at both ends of the round material in the direction of the pith center.

[0089] (4) Dry naturally. Choose a place with good ventilation and no sunlight exposure for natural drying. When the moisture content of the log is 45%, the natural drying is completed.

[0090] (5) Kiln drying. The drying process includes:

[0091] a) When the moisture content of the round wood is 30% to 45%, keep the dry bulb temperature in the kiln at 49°C and the wet bulb temperature at 45°C;

[0092] b) When the mo...

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Abstract

The invention discloses a processing method of round timber. The method includes the following steps that raw wood of the proper size is selected and cut off; the cut-off raw wood is subjected to bruting treatment, and the round timber is obtained; stress release grooves are formed in the two ends according to the size of the round timber; the round timber is naturally dried; the naturally-dried round timber is placed in a drying kiln to be dried; according to the application of the round timber, moisture regulating treatment is performed, and the final moisture content of the round timber is controlled; and rough shape cutting treatment is performed according to different diameters of the round timber, and corresponding boards are obtained. The step of sawing the wood before drying sawn timber is omitted in the processing method, wood waste caused when one sawing way is reserved for processing raw wood in to boards is reduced, and processing allowance reserved for drying deformation of the sawn timber is reduced. Compared with the prior art, the method has the beneficial effects of being high in production efficiency, high in timber outturn percentage and low in production cost, the processing method is applicable to the wood processing field, and the technical problems that in the existing round timber processing technology, the wood utilizing rate is low, and the timber outturn percentage is low are well solved.

Description

technical field [0001] The invention relates to the field of log processing technology, in particular to a processing technology and operation method applied to round wood. Background technique [0002] The traditional log processing method is: log-sawn timber-drying-cutting-thickness processing-sanding and other processing processes. Due to the different parts of the logs, the individual differences of the boards are obvious, so the boards are prone to drying defects such as distortion and cracking during the drying process, the drying quality is poor, and the utilization rate of the boards is low. Due to the unavoidable deformation and surface burrs after sawing and drying, it is necessary to reserve a processing allowance of more than 3mm during subsequent processing to ensure that the product can obtain sufficient dimensions. In addition, due to the long process of the traditional log processing process, the process is complicated and the labor force is large. [0003]...

Claims

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Application Information

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IPC IPC(8): B27M3/00B27K1/00B27F5/00F26B3/00
CPCB27F5/00B27K1/00B27M3/00F26B3/00
Inventor 周桥芳胡传双涂登云
Owner 丰胜(广州)建材有限公司
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