Patent GB-1103872-A (GB)
Title: Automatic web re-winding machine
Inventor: BREACKER EDWARD ALBERT
IPC: B65H19/22
Filed: 1964-03-11
Abstract: 1,103,872. Winding webs. CHAMBON Ltd. 26 Feb., 1965 [11 March, 1964], No. 10243/64. Heading B6B. In a turret web winding machine, as the diameter of the web-roll being wound on a twopart collapsible mandrel 6, driven by two parallel driving rollers 5, increases at the winding station 18, Fig. 4, a riding roller 111 supported by a pivoted lever 118 rises, as illustrated in Figs. 6 to 8 (not shown) until latched in an uppermost position. The drive to each pair of rollers 5 is via individual dog-clutches, individually brought into engagement only at the winding station by actuating rods 16 governed by a static cam with cam followers 17. When the web-roll has reached the desired size, the turret is rotated to be latched in the next angular position by an electromagnetically controlled plunger, Fig. 3 (not shown), engaging a slot in an index plate attached to the turret. At the same time a two-position clutch originally driving longitudinal web slitters 21, Fig. 4, is transferred to drive a guillotine cam 24, Fig. 12, for one revolution. The cam controls the rotation of a guillotine tuck-in lever 116, Figs. 4 and 9, carrying a guillotine blade 115 and a tuck-in blade 114, about the axle 117. The blade 115 severs the web extending between the full web-roll and the empty mandrel 6 by co-operating with a slot 9 in each turret mounting 4; and the blade 114 tucks the leading end of the web into a slot 36 in the new mandrel. This movement of the lever 116 about 117 also moves the riding roller lever 118 so that the spigots 120 run off the latching mechanism 122, and the lever 118 drops on to a fixed shelf 125. Return of the guillotine tuck-in lever 116 to its original position brings the riding roller into engagement with the new mandrel 6. Correct alignment of the new mandrel 6 with the tuckin blade 114 is achieved with two freely rotatable spaced-apart rollers mounted on an end flange of each mandrel, which rollers are engaged by a solenoid controlled aligning mechanism, Fig. 10 (not shown). The guillotine cam 24, Fig. 12, further controls the removal of the completed web-roll 55 from the turret to an unloading station 56, and the insertion of a new mandrel 67 into the turret mounting 4. A camrod 50 pivots a main shaft 53 with a crank, to move two spaced, parallel arms 54 into engagement with the ends of the mandrel of the full web-roll 55 to move the roll into the unloading station 56. At the same time, movement anticlockwise of a loading lever 57 allows a locking member 62 to pivot at 63 and bring lug 65 into such a position that it prevents mandrels 67b to 67d from moving down a shoot 70. Movement of the loading lever 57, however, allows a new mandrel 67a to roll down the passage 68 to a position 67e. The lever 58 then pushes the mandrel forward into the turret mounting 4, where it is retained by two spring- loaded members 7. A programming unit (80), Fig. 1 (not shown), dependent upon the number of turns of paper built up in each roll, and/or the diameter of the roll, actuates in sequence a series of switches and solenoids to control the above sequence of operations. If the web is issuing from a printing machine, means may be provided for slowing down the printing machine during rotation of the turret.