Verfahren und Anlage fuer die Holzbearbeitung

摘要

1,086,450. Sawing. K€HRS MASKINER A.B. Sept. 23, 1966 [Sept. 24, 1965], No. 42672/66. Heading B5L. A method of working, for example sawing, timber comprises passing each timber unit to be worked to examining means for automatically determining the quality and/or dimension of the timber unit, and advancing the unit to a timber working station provided with a plurality of adjustable timber working members and working the unit thereat, the members being adjustable in accordance with control signals from a computer which obtains information signals from the examining means and which is so programmed that the required yield of worked timber is obtained from each timber unit according to its quality and/or dimensions. In apparatus for carrying out the method, a timber unit in the form of a log 1 is fed along a conveyer 2 to debarking apparatus 3 and a detector 4 which actuates ejector apparatus 5 if it detects a foreign body, such as a stone or metal object, to pass the log laterally on to a conveyer 6. If the log is free from foreign bodies, it is passed to a radioscopic device 7 which determines the quality of the log and feeds the information to a computer 12. The log is moved transversely on a conveyer 8 to toothed wheels 9 which are operated to rotate the log to its best position for cutting. The ends of the log are then engaged by grippers 10 which carry the log through a photo-electric gauge 11 which also feeds information to the computer 12. From the gauge the log is passed between band saws 16 the distance apart of which are controlled by a unit 13 operated by the computer. The trimmed pieces from the log pass along a conveyer 17 to saws 18, 19 which edge the pieces. The log, after trimming by the band saws 16 is now in the form of a block 20 which is then passed between band saws 22 controlled by a unit 14 operated by the computer, the trimmed pieces from the saws 22 being passed along the conveyer 17 to the saws 18, 19. The cut block 20 is sawn into planks by a band saw 23 controlled by a unit 15 operated by the computer. The sawn planks pass from the band saw 23 laterally along a conveyer 24 and past a feed arrangement and sorting direction plant 26 to a sorting tray 27 and from the tray along a belt 28 to a further belt 29 which moves the planks to a stacking positon 30. In other embodiments, the band saws are replaced by circular saws.