Patent GB-689861-A (GB)
Title: Hank winding machine
IPC: B65B63/06
Filed: 1951-01-11
Abstract: 689,861. Winding fabrics. TISSELA AKT.-GES. Jan. 11, 1951. [Jan. 11, 1950] No. 842/51. Class 42 (ii). [Also in Group XVII] A machine for winding tape into hanks and banding them comprises means for winding a required length of tape into convolutions, means for moving the convolutions from the winding means to encompass transfer means normally spaced from the convolutions and associated with means for elongating and flattening the convolutions to form a hank, and means for banding the hank. The machine shown (Figs. 2 and 3) comprises a base 22 and an upstanding rear wall 24, a shaft 25 being journalled in brackets 26 on the base, and driven by a motor M through reduction gear 28. The shaft 25 carries a barrel cam 32, which imparts, through a lever 36, an axial reciprocatory motion to a drive rod 33, journaled in brackets 34 on the rear wall. Winding station. This comprises a winding head 61 (Figs. 4, 5 and 6) having a matrix or hub 68 and a front plate 64 having a circular opening therein, fixed to a back plate 62 mounted on spacers 63 on the rear wall 24, an annular cavity 71 being left between the hub and the front plate. A pusher ring 72 is seated at the rear of cavity 71, and is connected by pins 73, extending through the plate 62, to a pusher plate 75, to extensions 84 on which a slotted cover plate 86 is also affixed by pins 85. The pusher plate 75 together with pusher ring 72 and cover plate 86 may be moved forwardly, against the action of spring 79, by a cam 158 on the shaft 25, acting through levers 154 and 146. Tape 56 is fed into the cavity 71 by driven roller 121 and idler 122, and is caused to wind around the hub 68 by an air jet directed tangentially thereto by a nozzle 88. Oblique air escape holes 93 are provided in the coverplate 86. When the predetermined length of tape has been wound, the tape is severed by blades 101, 102, operated by a solenoid 108, which, together with the valves for turning the air jet on and off, is controlled by a series of micro-switches operated by cam members on the shaft 25. Tape removal mechanism. The wound tape is now pushed forward by the ring 72 out of the cavity 71, to encompass two fingers 144, 145, which extend from brackets 131, 132 through the open-ended slot 87 in the cover plate 86. Axial movement of the rod 33 to the right allows the bracket 131, which is loosely mounted thereon, and held against a fixed stop 138 on the wall 24 by a spring 137, to separate from the bracket 132 which is fixed to the rod 33, under the action of the spring 137, thus spreading the convolutions into a hank until engaged by the collar 142, on the rod 33, when both brackets are moved together. At the same time the cut end of the tape is engaged between the finger 145 and a finger projecting from a bracket 128 which is released by the movement of the rod 33 from its normal engagement, under the action of a spring 140, with stop 110 fixed to the wall 24. Banding and sealing stations and conveyer system. The hank is now presented by the fingers 144, 145 for insertion between the inner flights 205 of two endless conveyer bands or chains 198, 199, which are driven in steps by the rod 33 through a rack 51, pinion 232 and a one-way clutch and chain drive system, the spacing between the flights 205 being adjustable. A strip of paper 293 (Fig. 16) coated with a thermoplastic adhesive, is fed by rollers 294 between the hank and the conveyers 198, 199. A bracket 266, slidably mounted on rods 263, is moved by a cam 336 and lever 332 to cause a resiliently mounted pusher member 273 to engage the hank, remove it from the fingers 144, 145, and insert it between the conveyer flights 205, the strip 293 being thereby caused to encompass the top, rear and bottom of the hank, and being severed between a fixed blade and a movable blade 299 which is engaged by a resiliently mounted rod 284 on the bracket 266. Subsequent movements of the conveyers cause the ends of the strip 293 to be folded over by blades 367, 368 (Fig. 3) and sealed by a heated member which is mounted on a lever 353 operated by a cam 357. The completed package is finally discharged into a shoot.