GB1092191A - Automatic web winding machine - Google Patents

Abstract

1,092,191. Winding webs. R. COUZENS, and M. M. YOUNG. Jan. 1, 1965 [Jan. 3, 1964], No. 80/65. Heading B6B. A web 12 is advanced to a two-drum web winder 22 from a constant speed transverse perforating device 20. The compactness of the wound web roll 14 is controlled either by varying the drive of the two drums 78 and 80 relative to the perforating device 20 using an adjustable cone pulley 89 (Fig. 7), or by varying the force exerted by the pressure roller 92, which force is derived from a controlled torque device (160, Fig. 4) acting through rack-and-pinion drives on a pair of vertical slides (100, Fig. 3), supporting the pressure roller 92. When a revolution counter 76 on the perforating device 20 has measured sufficient web, the motor 40 is shut off to prevent further winding, and the torque output of the device 160 is increased to lift the pressure roller 92 away from the completed web roll 14. When the slides (100, Fig. 3) reach their uppermost position, a switch 190 is closed to initiate the transfer and cutoff cycle. The pick-up and transfer means 26, which comprises a pair of L-shaped arms (120, 122, Fig. 3), connected across the width of the web winder by a web roll transfer arm (121), is rotated once at each transfer and cut-off cycle by a one-revolution clutch (131) whereby the completed web roll is transferred to the finishing station 28 and an empty core 24 is picked up from the supply hopper 34 and positioned on the web passing over the two drums 78 and 80. An elongate piece of felt 170 saturated with water from a tank 166 now contacts the web 12 extending between the web winder 22 and the finishing station 28, and in so doing moistens it to thereby weaken it. A rotating cam 180 imparts rocking movement to the web roll which causes the web to tear along a moistened portion thereof. Compressed-air emanating from a nozzle 164 causes one part of the severed web to wrap around the empty core. A pair of arms 172 is pivoted upwardly to cause the water saturated felt fingers carried thereby (Fig. 6), to contact a second part of the severed web intermediate its end and the web roll so that the web is adhered to the web roll 14 forming a tab 38. While winding of the web 12 commences about the empty core 24, the finished web roll 14 can be reciprocated transversely of a machine by means of a reciprocating pusher arm 184 to cause the finished web roll to be positioned upon a conveyer leading to a saw for slicing the web roll into the required number of finished rolls such as toilet rolls.