CLAMPING ARRANGEMENT FOR LUMBER ELEMENTS

摘要

An arrangement for clamping a lumber element during its processing, especially in a sawing installation, includes at least two spaced abutment members having abutment surfaces for the lumber element. A substantially vertically extending suction plate is situated between the abutment elements and includes an upright contact plane. The suction plate is movable transversely to its contact plane and has a plurality of suction openings capable of exerting suction effect on the lumber element which is juxtaposed with the contact plane. Respective contactless sensors sense the presence of the lumber element at the respective suction openings and generate corresponding indication signals. The suction effect of the suction openings is controlled by an electrical switching and control device in dependence on the indication signals.