GB1041891A - Improvements in or relating to decollating machines - Google Patents

Abstract

1,041,891. Feeding webs; decollating machines. LAMSON PARAGON Ltd. Jan. 31, 1964, No. 4292/64. Heading B6B. Apparatus for feeding webs, particularly multi-ply webs W, transversely creased alternately in opposite direction, comprises endless belts 35, Fig. 5, with parts of their runs in slightly-spaced parallel relationship, and both having a toothed configuration, the teeth on one belt being disposed opposite the spaces in the other belt, the arrangement effecting feed of the webs without flattening the folds. The spacing of the parallel runs is such that the distance between the tips of teeth on the belts is at least as great as the thickness of the multiply web. As applied to a machine for decollating the separate strips from a web of interfolded transfer and record strips, the belts 35 pass around pulleys 27, 28, 29, 30, 37, 38, the shafts of which are carried by a pillar 12 extending upwardly from a table 15. Slidable on a tray 55 supported on the table 15 is a stand 56 with flanges to which are hinged at 68, 72 a lazy-tong linkage 65, 66 with a spring 70 joining the lower ends of the links 65. Fixed to the linkage are two pile-supports 60, 61 which, when unloaded, lie in the same horizontal plane. Extending from the pillar 12 are side arms 87 and an upwardly inclined arm 45 carrying respectively members 85 with web guide-pins, and a pulley 50. Side arms 16 fixed to the table each carries a wind-up device comprising a disc 76 with bars 75. All the pulleys 27, 30, 37, 38 and 50 and the discs 76 are driven by one endless chair engaging sprockets on their shafts, the disc-drives incorporating a friction clutch. In operation, the stand 56 is positioned so that the support 60 is beneath the outlet of the belts (see Fig. 1, not shown) and the support 61 is to the right of the pillar 12. A multi-ply pack to be decollated is placed on the table 61 causing the table to move downwardly and the table 60 to rise. The web is threaded through the guide 85, and the top strip, i.e. a record strip, is passed over the pulley 50, the remainder of the web being passed down between the belts 35. Upon the machine being set in motion, the top record strip is fed out of the machine, and the remainder of the strips form a zig-zag pack on the table 60 which moves downwardly as the pack increases. When this operation is completed, the stand 56 is moved so that the support 61 is beneath the outlet from the belts, Fig. 2. The end of the top strip C, i.e. a transfer strip, is now attached to the left-hand wind-up device 75, 76 and the end of the next strip 5b, i.e. a record strip, is passed over the pulley 50, the remainder of the strips being passed down between the belts. Operation of the machine now causes the top transfer strip to be reeled on the wind-up device 75, 76, the separated record strip is passed out of the machine, and the remainder PC of the multi-ply web is deposited on the table 61. These operations can be repeated as necessary. In a modified construction, Figs. 7 ... 9 (not shown), the transfer strips as well as the record strips are fed out of the machine by pulleys near the top of the pillar 12.