Patent GB-536052-A (GB)
Title: Improved traverse mechanism for cop winding machines
IPC: B65H54/34
Filed: 1939-02-22
Abstract: 536,052. Winding yarns. MASCHINENFABRIK SCHWEITER AKT.-GES. Feb. 22,1939, No. 5869. Convention date, June 28, 1938. [Class 120 (ii)] In a cop winding machine having means for controlling the thread guide traverse to wind a reserve or bunch before the normal winding, the usual traverse cam communicates its movement to a grooved segment mounted on a holder and oscillatable thereon about an axis at right-angles to the axis of the cam, the holder being movable about the cam axis for altering the traverse and the traverse rod being guided and actuated by the segment ; a sector adjustably fixed to the holder co-operates with a change-over device so that the position of the holder for giving the bunch winding, which can be adjusted by hand or automatically, remains locked during a certain adjustable period and,is then automatically released again. As shown, the cam 9 is integral with a pinion 8 driven from the main shaft 1 and with a pinion 10 gearing with a pinion 37 having an eccentric boss 39 engaged by a forked lever 40 on a shaft 41 which is rocked thereby. The grooved segment 23 is oscillatably mounted on pins 21 in the holder 20 fixed to the shaft 11 on which the members 8, 9, 10 are freely mounted ; the segment carries a bowl 25 engaging the cam 9 and a bowl 31 on the traverse lever 29 engages the groove in the segment so that the traverse rod 36 is reciprocated. The shaft 11 carries a hand lever 15 having a projection 16 held against the adjustable stop 17 by a spring 42, coiled about the shaft, when the normal winding is taking place and to set the segment so that the traverse is small to produce the bunch winding, the shaft is turned by the hand lever against the torsion of the spring 12 until the projection 16 engages a second stop, the concaved end of a sector 63 adjustably fixed to the holder 20 engaging the plain portion of a wheel 48 and holding the lever 15 &c. against the action of the spring 42. The wheel 48 forms part of the change-over device and is rotatably mounted on the hub of a spur wheel 50 loose on the shaft 41 and has teeth around the remaining portion of its periphery and a pin 52 projecting from the ratchet engages a slot in the wheel 50 which may be rotated to adjust the relative positions of the slot and pin 52 by a pinion 56 on a shaft 57 turned by a hand wheel 58, such adjustment determining the number of layers in the bunch winding. The rocking shaft 41 carries an arm 44 to which is pivoted a gapped plate 47 having a nose or pawl 46 for co-operation with the ratchet teeth on the wheel 48 and when the holder is moved to the bunch-winding position a boss 64 on the holder engages the lower part of the pawl plate 47 and lifts the pawl 46 from the wheel 48 which is turned to the predetermined position, adjusted by the hand wheel 58, by a spring 53. The boss 64 has now withdrawn from the pawl plate 47 which is released so that the pawl or nose 46 engages the teeth on the ratchet and rotates it by the rocking movement imparted by the shaft 41 ; when the last tooth is engaged, a concave recess 51 in the ratchet opposite the teeth comes opposite the sector 63 and the spring 42 rotates the holder back to its normal position for the usual winding. By adjusting the position of the sector 63 on the holder 20, the traverse of the bunch winding can be varied. The lever 15 may be connected to the control shaft of an automatic cop winder so that as soon as an empty cop is secured to the driving head of the spindle 1 the lever is thrown over to the second stop to start the bunch winding.