procedure and device to correct the prolonged traeelementer up

摘要

The invention relates to the predetermined placing of an elongated timber element 1 in relation to a reference line 16, which is fixed by means of a machining station 3. Endless longitudinal conveyors 5, the upper run of which is at several points 11 reversed downwards in a manner similar to a trough, lead to the machining station 3. Raising and lowering transverse conveyors 8, which can be controlled, run through these troughs. The control is performed in such a way that a timber element 1 is delivered to the longitudinal conveyors 5 in the correct position in relation to the reference line 16 by lowering the transverse conveyors. The transverse conveyors are at the same time aligning conveyors which, by controlling their operation, align the timber element. For control use, predetermined points of the timber element are sensed at predetermined points in the apparatus. A quick and accurate adjustment and placing of the timer elements in relation to the machining apparatus is thereby obtained. IMAGE