GB842472A - Apparatus for the back motion of the cone drum belt in a flyer frame - Google Patents

Abstract

842,472. Flyer frame winding-on motions. HOWA KOGYO KABUSHIKI KAISHA. Sept. 9, 1957 [Sept. 14, 1956], No. 28420/57. Class 120(2). In apparatus for the return movement of a cone belt 3, Fig. 1, connecting cones 2, 3 in a flyer frame, a release mechanism is provided for disconnecting a main drive transmission to cone 2, and an auxiliary drive mechanism is provided for driving cone 3 while the frame is stopped and a return mechanism effects return of the rack 14 and anchor bar to their starting positions. As shown, a main motor M, controlled by ON and OFF push-buttons in a box f, Fig. 1, drives, through gearing, the drive shaft 1 of the top cone 2. During winding, drive to spindle 52, Fig. 2, is compounded of a uniform speed component from motor M via gears 72, 40 to outer gear 42 of a differential and a decreasing speed component via cones 2, 4, gearing to shaft 41 and sun wheel 43, the planet carrier 44 being connected to spindle 52 via a swing mechanism 45, 46, 47. When bobbin winding is complete, the end 27 of a knock-off bar 25 closes a switch a to stop the machine, A switch g is then operated to energize a magnet h and thereby open clutches 6, 7 which cut off the main drive to the top cone 2 and the drive from the bottom cone 4 to the bobbin. Under these conditions, the machine can be inched, by pressing a push-button IN, with the flyer and bobbin rotating at the same speed to feed forward a loop of roving. A pushbutton J is now pressed to energize an auxiliary motor m and cause.it to drive the bottom cone 4 to facilitate backing the belt 3 to its starting (right hand end) position by reverse movement of the long rack 14; this is effected by motor m via a chain drive 20c, a worm 19 and worm wheel 18, the latter being clutched to the vertical ratchet shaft 12 by operation of a magnet n, also energized by push-button J. Just before the end of the rightward movement of rack 14, it restores bar 25 to its original, hooked, position, thereby opening switch a and also a switch u which de-energizes'motor m and magnet n. Switch g is now opened, so that clutches 6, 7 are re-engaged, and the frame can be re-started for another winding by pressing the button ON. By driving cone 4, the backing of belt 3 can be effected without releasing the belt tension. This tension may be provided by a compression spring 37, Fig. 4; one end of the spring bears against a nut on a screw 34 supported by a bracket 36, and the other end bears on a case 32 pivoted at 33 to a lever 31 which supports cone 4 and is pivoted at 30. As modifications, a uni-directional coupling may be substituted for clutch 6, and the driving of shaft 12 and cone 4 may be effected by different motors.