Actuating element with a piezoelectric flexural resonator for needle control in Jacquard and Jacquarette weaving machines

摘要

Actuating element and the arrangement of such as this in succession and/or opposite one another, to form a module for needle control in Jacquard and Jacquarette weaving machines, with a piezoelectric flexural convertor (1) which is clamped on one side in a base (5) and which preferably consists of a three-layer piezoceramic/metal/piezoceramic composite. This, via a connecting part (8), moves a low-mass abutment (2) which is mounted movably via a holding rod (7) and a foot part (6) and which can have an impact-damping intermediate bearing. The deflection of the abutment (2) is limited by the stops (16). <IMAGE>