Importance

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Abstract

A method and a plant in processing, especially cutting objects such as timber. The invention relates to a method of cutting up elongate objects such as boards e.g. for providing parquet blocks. The method relates, inter alia, to preventing the creation of unnecessary waste and includes measuring the length of every board (6) between its leading edge (L) and trailing edge (T) by advancing the board (6) between rollers (16) so that pulse trains corresponding to the respective board length are obtained. These are stored in a dator (21) register, markings (10-15) for possible defects (7-9) being positionally registered. In subsequent cutting (21) the stored pulses are deducted for deductions from the length of board (6) and controlling the cutting process, until a terminal portion (E) of the board is arrived at, the trailing edge (T) of said portion forming a reference (P) for the leading edge (L) of the next successive board, subsequent to which continued deduction from the length of the terminal portion being carried out until the trailing edge is reached in conjunction with initiating deduction from the length of the next successive board (25).

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First Claim