Patent GB-984642-A (GB)
Title: An apparatus for alternative winding on two winding rollers of material runs continuously led thereto
IPC: D06B17/04
Filed: 1961-06-28
Abstract: 984,642. Textile treating apparatus. BENTELER WERKE A.G. June 28,1961 [July 11, 1960], No. 22382/61. Headings D1L and D1S. Apparatus for alternately winding continuously moving cloth on to two winding rollers of a batching container for chemical or heat treatment whereby the cloth is placed doubled around each winding roller and whereby one layer has already undergone a treatment whereas the other is newly led into the container from outside so that each cloth run undergoes the treatment twice and also whereby an automatic control device is present to reverse the direction of rotation of both winding rollers and for the alternate feed of the run to one or other winding roller, is characterized in that the two winding rollers are mounted on movable shafts and are continuously and independently pressed against a rotatable feed roller mounted in fixed bearings and driven at a constant speed and are constantly driven thereby, such that the line of contact between the two laps on the winding rollers and the feed roller are arranged symmetrically to the plane passing through a guide roller and the said feed roller such that the length of the cloth run from the take off line of the guide roller to the two contact lines of the winding rollers with the feed roller remains substantially of equal size, and also, that a double rod device is provided above the feed roller and is pivotable thereabout for the formation of the fold on one winding roller, whereby the fold is immediately after its formation pressed on to the winding roller to form the first winding, by a pressure bar rotating with the roller and that the pressure bar is subsequently returned to the state of rest, and that the processes of forming the fold and the first winding along with the reversing of the direction of rotation of the feed roller are controlled automatically. In the arrangement shown cloth 1 from, e.g. a bleaching vat, is squeezed in mangle 2 and led over a pendulum roller 3 to enter treatment device 4. At the entrance of device 4 is a heating battery 5 and inside, there are two cylindrical chambers 7 and 8 each substantially surrounded with heating elements 9. A feeder roller 10 is mounted in fixed bearings and is connected to drive means which can be driven in both directions of rotation at a "normal" speed and also at a "creep" speed. The cloth is taken up alternatively by two winding rollers 11 and 12 each hung on arms 15,16, and pressed into contact with the delivery roll 10 by spring or other pressure means. In operation initially the starting end of cloth 1 is drawn into the device 4 and led over guide 20, between the two rods 26, 27 to the feeder roller 10 and thence to, say, winding roller 11. Roller 10 is rotated in an anti-clockwise direction until a batch is formed on roll 11 of about half the volume of chamber 7. The drive to roll 10 is then switched off and rods 26, 27 are rotated by gear means around the periphery of roll 10 in a clockwise direction so as to form a loop in the cloth and feed said loop on to roll 12, where it is clamped by bar means. The rods 26, 27 are returned to their original position and feeder roller is then rotated in a clockwise direction so that the cloth is wound in doubled form on roller 12 one layer of cloth being taken off roller 11 and the other being a fresh length entering the device. When a batch has been wound on roll 12 to completely fill chamber 8, rods 26, 27 are rotated around the periphery of roller 10 in an anti-clockwise direction, roller 10 being stopped, to form another loop and to feed said loop on to roll 11. Rods 26, 27 are returned to their original position and roll 10 rotated in an anti-clockwise direction so that the cloth is now wound double on roll 11 one layer coming from roll 12 and the other being fresh cloth fed into the device. The second layer from roll 12 is now fed off over guides 21 and 22 and is taken out through aperture 23 and is led over pendulum roller 24 and through mangle 25. Once the device has been charged the feeding of the cloth therethrough is done automatically the cloth being wound alternately on rolls 11 and 12 in a double layer, fresh cloth being fed in through heating chamber 5 and treated cloth being fed out from aperture 23. In a second embodiment the axis of feeder roll 10 is in the plane containing the axes of rolls 11 and 12.