| 摘要 |
<p>PURPOSE:To decrease the amount of deflection of a roller so as to realize easy cutting of even broader veneer by a method wherein cutting edge is divided in a plurality of parts in the direction connecting share points under the condition that the share points of adjacent cutting edges are brought into contact with each other and the share point line of the cutting edge is arranged so as to be inclined to a line parallel to the rotating shaft of the roll. CONSTITUTION:When the rolls 7 of all veneer detectors 5 are lifted with the thickness of a veneer 3 by the certain value or higher, all microswitches 8 are opened, resulting in issuing a front end detection signal from the terminal 10a of an OR circuit 10. A control circuit 21 transmits the signal to an solenoid valve by the delay of a very short time so as to force and discharge compressed air in and from a cylinder 19 in order to extend or retreat a rod 20. Each shaft 11 is pivoted counterclockwise through an arm 17 so as to pivot an edged tool 14 in order to face the share point to a roll 2, resulting in cutting off the detected front end position of the veneer. In said cutting, since the edged tools 14 are provided so as to be tilted by L at both outer sides, the veneer 3 is cut off by being pushed against the roll 2 gradually from the center side to the outer side of each share point line through the pivoting of the edged tool.</p> |
