Patent GB-626049-A (GB)
Title: Improvements in or relating to devices for winding webs, wires or the like into rolls or reels
IPC: B21C47/24
Filed: 1945-11-27
Abstract: 626,049. Winding wire or thread. KOHLER, J. B. Nov. 27, 1945, No. 31970. Convention date, Feb. 26, 1944. Class 120 (ii)] [Also in Group XVI] A machine for winding a continuous length of material such as wire, thread &c. into rolls or reels comprises a primary drive mechanism for rotating in succession a number of roll or reel supports, a mechanism for cutting off the material upon completion of a roll or reel and guiding the next portion of material on to the next support, and an auxiliary drive mechanism independent of the primary drive mechanism, effective prior to and during the beginning of the formation of the roll or reel, for accelerating the support to bring it to the appropriate speed before the drive of this support is taken over by the primary drive mechanism. The material 104, Fig. 4, is fed over driven rollers 89, 85, which may be drying drums, guide rollers 100, 102 and a pressure roller 61 to one or two cores 15, Figs. 1 and 4, which are carried by spindles 12, 16 mounted in arms 10, 11 fixed to a shaft 4 adapted to be rotated by a motor 5. Each shaft 16 carries one member 19 of a clutch enclosed in a housing 35, the other clutch member 21 being mounted on a shaft 22 normally driven from a motor 33 through belts 32, 29 and a sheave 27 connected to the shaft 22 through an. overrunning clutch. The shaft.22 also carries a pulley 26. Each clutch member 19 has two pins 41, Fig. 11, engaged by forks 40 carried by a stub shaft 39 extending through the housing 35 and carrying a member 49. The member 49 associated with the upper clutch housing 35 in Figs. 1 and 4 carries a rod 48<SP>11</SP> surrounded by a spring 48<SP>1</SP> and pivoted to a link 47 fixed to a shaft 37 passing through both clutch housings 35 and having at its ends arms 43, 43<SP>1</SP> carrying rollers 44, 441. Thus rotation of the shaft 37 rotates the stub shaft 39 and engages or disengages the. clutch. A similar shaft 38 having arms 45, 451 and rollers 46, 461 is provided for operating the lower clutch. Levers 39<SP>1</SP> may be attached to the member 49 for operating the clutches manually. A knife blade 50 is carried by curved arms 51 fixed on a shaft 52 which carries a latch 55 engaging a member 56 fixed on a shaft 52 which carries a latch 55 engaging a member 56 fixed to a shaft 58. The pressure roller 61 is carried by an arm 62 fixed to the shaft 58 and having an extension 57 spring-held against a stop 66. A lever 75 carrying a roller 78 is linked to a lever 72 pivoted at 73 and carrying a link 70 slidable on a headed rod 69 surrounded by a spring 67 and pivoted to one of the arms 51. A speed up belt 111 driven from a drive shaft 95 at a speed slightly greater than the speed of the material passes over pulleys 110, 112, the lower pulley 112 being mounted on an arm 114 pivoted to the frame at 115 and carrying a movable weight 116. A piston in a cylinder 123 containing adhesive is connected to one of the arms 51 so that when the knife is released adhesive is ejected through a conduit 130 and nozzle 131 onto the material. When a roll in the normal winding position, Fig. 4, is substantially complete, the motor 5 is started to rotate the arms 10, 11. During this rotation a cam 118 contacts the roller 461 and engages the clutch on the new core to start it rotating. As the rotation of the assembly continues a cam 36 on the clutch housing 35 of the new core engages the roller 78 and moves the link 70 up the rod 69 to compress the spring 67, the knife being prevented from moving by the latch 55. The pulley 26 then comes into contact with the speed-up belt 111 and the new core is accelerated to a speed slightly greater than material speed, this being permitted by the overrunning clutch between the sheave 27 and its shaft 22. When the core reaches the pressure roller 61 it moves it to the right and releases the latch 55 whereupon the knife 50 is moved by the spring 67 to sever the material, Fig. 5, and adhesive is sprayed onto the material to cause it to adhere to the new core towards which it is guided by the arms 51. Release of the knife 50 also causes a cam 81 on the shaft 52 to engage the roller 44 and declutch the drive to the completed roll. Before the new core leaves the pressure roller 61 the cam 36 engages a roller 135 operating a switch 133 which stops the motor 5 for about ten seconds to allow the motor 33 time to accelerate to the correct speed for driving the new core while the belt 111 still drives the core. After this time the motor 5 restarts automatically and rotates the assembly to the normal running position in which it is arrested by one of the cams 36 engaging a roller 122 operating a switch 120 which stops the motor 5.