Patent GB-258564-A (GB)
Title: Improvements in machines for manufacturing, filling and closing packages
IPC: B31B120/40
Filed: 1926-08-10
Abstract: 258,564. Hesser Maschinenfabrik Akt.-Ges., F. Sept. 17, 1925, [Convention date]. Machines for making boxes. A machine for making, filling, and closing packages consisting of an inner and an outer wrapper, comprises a device for drawing a web from a reel and notching and cutting sheets therefrom for the inner wrapper, a horizontally rotating folding mandrel wheel receiving the severed inner sheets and sheets for the outer wrapper, a horizontally rotating conveyer wheel cooperating with the mandrel wheel and adapted to fill the packages formed thereon, and a horizontally revolving conveyer wheel for closing the filled packages discharged from the filling wheel; the severing device, the mandrel wheel, and the filling and closing devices are arranged at right angles to each other in a square. The various parts of the machine are driven from a main shaft 109, Fig. 1, the notching and cutting device through bevel gears 164, 165, a shaft 43, bevel gears 166, 167 and a shaft 9, the folding mandrel wheel 300 through bevel gears 176, 175, a shaft 174 and a crank arm 173 thereon, which engages a Maltese cross 170 secured to the shaft 203 of the mandrel wheel, and the filling wheel 139 in a manner similar to the mandrel wheel 300, its spindle 135 also driving the closing wheel 147 through spur gearing. A cardboard web K, Fig. 11, from which the sheets for the inner wrapper are formed, passes through a device comprising a continuously revolving gumming roller 2a, a roller 3 for producing slits a, and cutting rollers by which longitudinal and transverse grooves c, d are formed in the web, and thence on to a table 13 where an arrester 19 holds the front of the web whilst corners e are cut from it. The arrester comprises arms 19<1> pivoted on a shaft 200 and operated at the required times by an eccentric on the shaft 9. From the table 13, a roller cooperating with a roller 15, and driven from the shaft 9, feeds the web forward on to a folding mandrel 30 on the mandrel wheel 300, a reciprocating cutter acting simultaneously with the beforementioned cutter, severing from the web a length sufficient for an inner wrapper. Folding mechanism. The sheet is folded around the mandrel 30 at the point I, Fig. 1, bv a reciprocating folding box 18 and the sides h, i are then folded down on the mandrel in known manner and pressed by a presser plunger similar to the presser 31, Fig. 3, which is actuated through bell-crank levers 32, 34, 35<1> by a sleeve 36 on a hollow shaft 204, the sleeve being reciprocated on the shaft by a bell-crank lever 37 actuated by an eccentric on the main shaft 109. The mandrel wheel then turns oneeight of a turn to bring the folded sheet to Station II, Fig. 1, where the end flaps l, m, o are folded. over, the last flap p being folded as the package moves to Station III by a stationary folder 206, where an outer wrapper is supplied. Feeding and gumming mechanism for the outer wrappers. The uppermost sheet of a pile u, Fig. 3, is bent downwards and its front edge thereby turned upwards by a rail 45 on a suction device 44 pivoted on a shaft 236 which is oscillated to feed forward the sheet by a link 237 and lever 238 carrying a roller engaged by an eccentric on a shaft 41 driven from the shaft 43. The suction device feeds the edge of the sheet to a roller 46 which is grooved to accommodate its nozzles and at the same time the sheet is pressed against the roller 46 by a roller 47 mounted on a rocking lever 48 controlled by an eccentric on a shaft 51 driven by the shaft 41. The sheet is thus fed between a gumming roller 57 and a counter roller 61, being guided by a rail 55 and wires 56. The counter roller 61, which is mounted on an arm 61<a> secured to a rock shaft 66, is moved to press the sheet against the gumming roller 57 by a spring (not shown) controlled by an eccentric on the shaft 41, the eccentric engaging an arm 67 on the shaft 66. If no sheet is in position, a feeler 60 balanced by a trap 62 passes between the wires 56 and the trap obstructs the path of the nose 63 of an arm 64 secured to the shaft 66, thereby stopping the movement of the roller 61 and preventing it from being soiled. A driven roller 74 and cooperating loose roller 75, aided bv oscillatory fingers 79 pass the sheet on to the mandrel 30 at Station III, Fig. 1, where it abuts against adjustable stops 80. Folding and transfer mechanism. The sheet is folded about the inner package, in a manner similar to that by which the inner package was folded, as the mandrel wheel turns to Station V where the bottom is pressed by a presser 87. At Station VII, spring controlled fingers 88 mounted on a carriage 91 engage in grooves in the sides of the mandrel to thrust the package off it, the fingers being actuated by the movement of the carriage 91 along a rod 92 by a lever 93 connected by a link (not shown) to an eccentric on the shaft 43. The package is received by a device comprising a wheel 100 having two apertures of the dimension of the package and at right angles to each other, the device being rotated intermittently through a right angle to turn the package broadside on to the filling wheel 139, the package so turned being pushed through the device by the next package delivered from the mandrel wheel 300. In a modification, the package is passed from the mandrel on to an inclined holder and turns partly round in the passage, the remainder of the requisite right-angle turn occurring when it is pushed off the holder. In either case, the discharged packet slides down a spoon 110 into one of the pockets 136 of the filling wheel 139.