CN101607405A - A kind of duplex sawing lumbering technology - Google Patents

A kind of duplex sawing lumbering technology Download PDF

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Publication number
CN101607405A
CN101607405A CNA2009101817697A CN200910181769A CN101607405A CN 101607405 A CN101607405 A CN 101607405A CN A2009101817697 A CNA2009101817697 A CN A2009101817697A CN 200910181769 A CN200910181769 A CN 200910181769A CN 101607405 A CN101607405 A CN 101607405A
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CN
China
Prior art keywords
saw
log
sawing
technology
duplex
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CNA2009101817697A
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Chinese (zh)
Inventor
曹平祥
丁建文
王宝金
郭晓磊
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Nanjing Forestry University
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Nanjing Forestry University
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Filing date
Publication date
Application filed by Nanjing Forestry University filed Critical Nanjing Forestry University
Priority to CNA2009101817697A priority Critical patent/CN101607405A/en
Publication of CN101607405A publication Critical patent/CN101607405A/en
Pending legal-status Critical Current

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Abstract

The present invention relates to a kind of duplex sawing lumbering technology.New technology of the present invention: the application scanning technology is obtained log external form outline data, sets up and optimizes saw model down, and saw can the output stock board down for the log single.Adopt this technology can improve the quarter-sawed lumber volume recovery, can utilize the workshop original process layout, occupation of land is little, cost is low, small investment, instant effect, advantages such as enforcement easily.

Description

A kind of duplex sawing lumbering technology
(1) technical field
The present invention relates to a kind of duplex sawing lumbering technology, belong to log lumbering technology field.
(2) background technology
Because timber resources especially precious timber is deficient day by day, comprehensively and rationally utilizes precious timber, improving its value-added content of product is the heat subject of current research.Compare with flat-grain lumber, radially sheet material has dimensionally stable, the little and not easy to crack advantage of distortion because of little at the width contract with dry rate, is widely used in the woodworks such as furniture, floor and door and window.
In order to improve the ratio of quarter-sawed lumber in the sawn timber, generally adopt three or four-faced sawing for the bigger log of diameter; For the less log of diameter, there is the scholar to propose special-shaped sawing procedure.In order to improve the breadth width and the volume recovery of slicing veneer, adopt three to open the fan-shaped sawing procedure of material as Germany, Italy, Japan etc.; Sweden produces with the star sawing procedure has the radially square bar and the triangular material of texture; Domesticly also work out three and open or four open fan-shaped sawing procedure, saw cuts open the equipment and the technology of radial plate.Though these methods can improve the volume recovery of quarter-sawed lumber, because required saw lumber equipment complexity, the quarter-sawed lumber that is obtained simultaneously mostly also need pass through following process (as splicing, cutting edge etc.) just can become stock board, and therefore the application in actual production is less.
(3) summary of the invention
A kind of duplex sawing lumbering technology comprises that the application scanning technology obtains log external form outline data, sets up and optimizes saw model down, and log single saw down can the output stock board.
As improvement, obtaining of log appearance profile is to carry out tomoscan by the CT scan technology.The method of obtaining log appearance profile parameter at present mainly contains laser scanning, optoelectronic scanning and tomoscan etc., and wherein tomoscan mainly is to be used for detecting the log inner parameter, and cost is higher relatively.In view of the present invention formulates down the saw scheme according to the internal structure of log, therefore adopt layer scanning technology to obtain the appearance profile parameter of log.
As improvement, set up and optimize trapezoidal saw model down.Based on the permutation and combination of stock board in the log section of different-diameter, satisfy in maximization under the prerequisite of the volume recovery of sheet material and quarter sawing sheet material quantity, the optimization stairstepping is the saw model down.
As improvement, log single saw down can the output stock board.Log only needs a clamping, and does not need to overturn once more, can finish whole lumber conversion, and can directly obtain stock board, saves follow-up cuing open again and operation such as cutting edge, has simplified sawing technology; Can saw and separate large diameter log, the diameter of saw blade only depends on the width of required stock board, has reduced the diameter of saw blade greatly, thus swage set loss when having reduced saw lumber.And the annular saw blade saw cuts open the precision height, and the sheet metal thickness deviation is little, thereby can improve saw lumber production efficiency and quarter sawing sheet material volume recovery.
Cut open scheme according to saw, at first begin saw down from the upper right corner of log, saw removes two flaw-pieces, then according to required sheet material specification, according to turn left from the right side, top-down order, log is sawed separated successively, until remaining bigger flaw-piece.
Beneficial effect of the present invention.This kind duplex annular saw quarter-sawed lumber lumbering technology, the processing of collection image, computer numerical control (CNC) and Precision Machinery Design are fabricated to one, adopt the saw lumber circular sawing machine of custom-designed level and log frame parallel connection, can realize that the stepped saw of log cuts open, can in the primary feed of log, directly obtain required stock board, thereby improve the ratio of quarter-sawed lumber in saw lumber production efficiency and the sawn timber.Therefore, the present invention has boundless production application prospect.
(4) description of drawings
Fig. 1 is a log contour reconstruction 3-D view of the present invention.
Fig. 2 is the ladder sawing procedure model of log of the present invention.
Fig. 3 is that the trapezoidal saw of duplex annular saw of the present invention is separated technology.
(5) specific embodiment
The invention will be further described below in conjunction with drawings and Examples.
Only sawing the sheet material that cuts open a kind of specification with the log of a diameter 400mm is example, and the scanning of log is carried out on Medical CT.Fig. 1 is after log (seeds are European Chinese wax, diameter 400mm, sweep length 700mm) is carried out tomoscan, the log threedimensional model that the applying three-dimensional reconstruction technique obtains.
Fig. 2 is that the ladder of this log is sawed model down.To produce common solid wooden floor board slab is purpose, and the sheet material specifications section is 100mm * 22mm, and the swage set loss is made as 5mm.Simultaneously, in order to be fit to the processing technology of the trapezoidal equipment of saw circular sawing down, the maximum height of each swage set is no more than the width of sheet material.
Duplex circular sawing sawing technology is as shown in Figure 3: cut open scheme according to saw, at first the upper right corner from log begins saw down, and saw removes two flaw-pieces, then according to required sheet material specification, according to turn left from the right side, top-down order, log is sawed separated successively, until remaining bigger flaw-piece.

Claims (4)

1. duplex sawing lumbering technology comprises that the application scanning technology obtains log external form outline data, sets up and optimizes saw model down, and log single saw down can the output stock board.
2. a kind of duplex sawing lumbering technology according to claim 1 is characterized in that: obtaining of log appearance profile is to carry out tomoscan by the CT scan technology.
3. a kind of duplex sawing lumbering technology according to claim 1 is characterized in that: optimizing down, the saw model is a saw model under the stairstepping.
4. a kind of duplex sawing lumbering technology according to claim 1 is characterized in that: log single saw down can the output stock board.
CNA2009101817697A 2009-07-23 2009-07-23 A kind of duplex sawing lumbering technology Pending CN101607405A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNA2009101817697A CN101607405A (en) 2009-07-23 2009-07-23 A kind of duplex sawing lumbering technology

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNA2009101817697A CN101607405A (en) 2009-07-23 2009-07-23 A kind of duplex sawing lumbering technology

Publications (1)

Publication Number Publication Date
CN101607405A true CN101607405A (en) 2009-12-23

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CNA2009101817697A Pending CN101607405A (en) 2009-07-23 2009-07-23 A kind of duplex sawing lumbering technology

Country Status (1)

Country Link
CN (1) CN101607405A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103358367A (en) * 2013-07-30 2013-10-23 苏州香山工坊营造工程有限公司 Preparation process of laminated wood for solid wood door and window frame
CN104385377A (en) * 2014-10-17 2015-03-04 东莞市热线家具有限公司 Timber sawing method and timber sawing equipment for timbers with similar densities
CN104827541A (en) * 2015-03-18 2015-08-12 福建农林大学 High-outturn-rate spruce defect-free quarter-sawed sheet cutting method
WO2020006674A1 (en) * 2018-07-03 2020-01-09 福建省得力机电有限公司 Log sawing machine capable of automatically opening and closing
CN112008822A (en) * 2020-08-26 2020-12-01 广西壮族自治区林业科学研究院 Method for manufacturing high-outturn-rate wood physical and mechanical test material

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103358367A (en) * 2013-07-30 2013-10-23 苏州香山工坊营造工程有限公司 Preparation process of laminated wood for solid wood door and window frame
CN104385377A (en) * 2014-10-17 2015-03-04 东莞市热线家具有限公司 Timber sawing method and timber sawing equipment for timbers with similar densities
CN104385377B (en) * 2014-10-17 2016-03-02 东莞市热线家具有限公司 A kind of similar density material log saw flitch method and sawmilling equipment
CN104827541A (en) * 2015-03-18 2015-08-12 福建农林大学 High-outturn-rate spruce defect-free quarter-sawed sheet cutting method
CN104827541B (en) * 2015-03-18 2017-01-18 福建农林大学 High-outturn-rate spruce defect-free quarter-sawed sheet cutting method
WO2020006674A1 (en) * 2018-07-03 2020-01-09 福建省得力机电有限公司 Log sawing machine capable of automatically opening and closing
CN112008822A (en) * 2020-08-26 2020-12-01 广西壮族自治区林业科学研究院 Method for manufacturing high-outturn-rate wood physical and mechanical test material
CN112008822B (en) * 2020-08-26 2022-03-18 广西壮族自治区林业科学研究院 Method for manufacturing high-outturn-rate wood physical and mechanical test material

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Open date: 20091223