ELECTROMAGNETIC DEVICE FOR ELIMINATING A YARN LOOP WHEN WINDING YARN ON A CROSS-WOUND BOBBIN ON A SPINNING MACHINE AT A CONSTANT SPEED OF THE YARN PRODUCTION

摘要

The invention relates to an electromagnetic device for eliminating a yarn loop during the process of winding yarn on a cross-wound bobbin on a spinning machine at a constant speed of the yarn production, which comprises a cylindrical two pole magnet (1), which is connected to a compensatory arm (5) of a yarn loop and which is mounted rotatably about its longitudinal axis between two pole pieces (20, 21) of a magnetic core (2) of a coil (4), which are situated opposite each other, whereby on the side remote from the cylindrical two-pole magnet (1) and the pole pieces (20, 21), the magnetic core (2) passes through the electrical coil (4) connected to a source of electrical energy and to a control device. The magnetic core (2) is interrupted in the cavity of the coil (4) and a two pole permanent magnet (3) is located at the point of its interruption.