Patent GB-462092-A (GB)
Title: Machine for making, filling, closing and wrapping bags
IPC: B65B1/02
Filed: 1936-05-13
Abstract: 462,092. Apparatus for stapling paper &c. bags. SEELIG & HILLE, R. May 13, 1936, Nos. 13556 and 13557. Convention dates, June 19, 1935 and Nov. 18, 1935. [Class 89 (iii)] Also in Groups XVII, XVIII, and XXX] This invention relates to a machine for making, filling, closing, and wrapping paper &c. bags of tea &c., the mouth and side folds of the bags being stapled. The edges of the paper projecting beyond the narrow sides of the core 32 are gripped by pairs of shears carrying jaws ribbed and grooved at 98, Fig. 14, to pre-crease the paper &c., the shears being interconnected through linkages. A finger 650, Fig. 15, beats the portion of the base area beyond the core, either upwardly between the side portions, to be subsequently folded therewith, or downwardly to form a projecting corner, subsequently to be folded up and stapled in with the side seams. The core wheel 4 now moves to the second folding station, where rockable rails 100, 101 press the pre-folded sides into the grip of camoperated tongs 108, 109, which are subsequently revolved to form doubly-folded side seams, Fig. 22. If the overhang of material is sufficient trebly-folded seams may be produced. Strip metal fed intermittently through a guide inclined to the vertical is cut into lengths, with pointed ends, by a stapling device comprising cam operated levers 1360, 1370 rockable about a shaft 138. The heads of both levers move as one to effect the cutting of the staple, against the wall of the feed magazine, whereafter the lever 1370 continues to move to bend the staple about a bending plunger 141, which is then removed, and the staple driver 136 then swings forwardly to drive the staple through the bag side-folds to bend the same against the core 32, as anvil. After the stapling of the side seams the bag is stripped from the core by stripping blades. A perforating device prepares the mouth for stapling. This device comprises levers 212, 213, Fig. 43, connected by a link 214. Needles 224 pass through apertures 226 in a spring plate 225 and thence into apertures 223 in the lever 212, the spring plate 225 stripping the bag top from the needles 224 A feeler 229 controls the forward feed of the bag-mouth stapling material so that if no bag is present the feed is stopped. The material 256 from which the bag-mouth staples are cut is fed through a guide 236, Fig. 51, and a staple is cut therefrom by levers 245, 248, Fig. 47, which move together about the shaft 246. The lever 248 then moves further forwardly to bend the staple about the bending plunger 254, the staple being driven home by the driver 244 against the anvil 262. There may be three staples inserted through the mouth folds of the bag, and in the case of a tea &c. infusion bag the middle staple may hold in place a string and tag. The label string 265 is fed through a guide eye 266 and is laid in loop form about the top closure of the bag by the stapling device in the forward movement of the same, being held in place at two points by the middle staple. The labels 269 are stacked in a pile, the lower end of which is offset so that the whole weight is not borne by the lowest label, the same being fed by a reciprocating shouldered plate 273 to rest under the anvil of the stapling device 270 where the label is attached to the string end by a staple. The string is cut from the supply by oscillating shears 268 which, after effecting the cut, move back towards the stapling device 270. The clamp wheel 176 in its rotation, pulls the strings with their depending labels, after it.