GB1050130A - - Google Patents

Abstract

1,050,130. Toothed gearing. ZINSER TEXTILMASCHINEN G.m.b.H. Dec. 18, 1964 [Dec. 18, 1963], No. 51932/64. Heading F2Q. [Also in Division D1] In apparatus for building upper or lower bunches or both on cops spindles in a ring- frame, where a heart-cam provides the traverse and an indexed chain drum provides the gain, and the bunches are built by an auxiliary reversible motor which shortens or lengthens the chain, during the bunching-operation, the lifting movement transmitted by the heartcam is offset by rotation of the drum by the auxiliary motor, to hold the rail substantially in one position. The auxiliary motor also holds the rail against the effect of the indexing mechanism in the upper and/or lower positions of the rail. In Fig. 1 (not shown), the drum 16 is on a shaft 15 which is connected to a shaft 14 connecting the planets 13 between two suns 7, 12 of a differential. One sun can be driven by the indexing mechanism 2, 3 and the other, in either direction, by a reversible motor 8, the drive to either sun being through a worm and wheel, the locking action of which allows one side of the differential to be driven without affecting the other. A circuit is described, Fig. 3 (not shown), for controlling the motor 8, including relays controlling the direction of drive of the motor, and upper and lower limit switches at each end of the traverse of the ring-rail, these switches being actuated by a cam on the ring-rail and made operative by a length-measuring device, while auxiliary switches are controlled by a cam on the heart-cam through timing mechanism. When the rail reaches the top of its traverse and is about to descend, the auxiliary drive is switched-in, offsetting the influence of the heartcam, and continues until the upper limit switch is actuated. The lowering-action of the heart-cam now becomes effective and the lower limit switch is actuated to switch-in the auxiliary drive. In this way, the rail is held stationary until the timing mechanism cuts out, and allows the auxiliary drive to lower the rail. At the lower end of the traverse, the rail is similarly held stationary. At a point in this operation, the main driving motor of the machine is cut out, and after doffing, a manual switch is operated to bring in the auxiliary drive to raise the rail to starting point. When the rail reaches an intermediate contact 32, the auxiliary drive is stopped, and the chain-drum caused to assume a position appropriate to the start of the next wind. When the sun 7 is operated by the indexing mechanism while the auxiliary drive is operative, the bevels 13 are kept stationary by rotation of sun 12.