Patent GB-351631-A (GB)
IPC: B31B105/00
Filed: 1930-04-16
Abstract: 351,631. Making boxes. UNIVERSELLE CIGARETTENMASCHINEN FABRIK J. C. MULLER & CO., 48, Zwickauerstrasse, Dresden, Germany. April 16, 1930, No. 12005. Convention date, Jan. 11. [Class 18.] A machine for making boxes with hinged lids, Fig. 9, from pairs of blanks comprises several devices for producing shaped lids in a channel above the body and lid assembling station to which body portions are delivered by a single rapidly acting device, the assembled bodies and lids being then bound with edge closing strips which are subsequently cut on three sides to hinge the lids to the bodies. As shown in plan in Fig. 1, the body blanks Zu, Fig. 12, fed from a magazine I, are provided with spots of adhesive Zu<4> by a device 10, Fig. 2, and positioned against a stop 4 with the flaps Zu<1> against a pair of blocks 5 adjacent a channel 3. A forming block F is delivered by a conveyer chain 55 to resilient fingers in front of the blank Zu and a plunger 9 forces the block and blank against a plunger 6 and into the channel 3 ; the flaps Zu<1> are first bent at right-angles to the flaps Zu<2> by the blocks 5 and the flaps Zu<2>, Zu<3> are then bent up at right-angles to the bottom of the blank by the edges of the channel 3 with the gummed portions Zu<4> contacting with the flaps Zu<1>. Further movement of the plungers carries the block and folded box body into a reciprocating frame 11 which carries them before a plunger 14 which pushes them between a pair of walls 15 where a conveyer chain 16 having resilient holders 17 engages the block and box body and moves them to the assembling station x under a horizontal pile of lids D,delivered from stamps 19 which form them from cruciform blanks Zd. The end lid of the pile is supported on a pair of bars 21, Fig. 4, and is carried by a plunger 22 past the bars on to four angled holders 23 which engage inside the corners of the lid and bend them slightly outwards as the holders move down to apply the lid to the box body and former F underneath it. The holders then move away from the corners of the lid and the chain 16 carries the assembled lid and body under a plunger 28 which forces them down a channel 27 against an edge closing strip B and on to a plunger 34. The strip B is fed from a web 30 by grippers 31 past a glueing device 32 and a spring pin 33 which tensions the strip while it is being severed from the web. The box and strip are carried down a channel 29 where the strip is folded up against the sides of the box and lid, the projecting ends of the strip being then folded on to the fourth side of the box and lid by a finger 36 on a plunger 37 and a roller 39 as the plunger 37 forces the assembly into a brush-lined channel 38 from which it is carried by a conveyer 42 past brushes 44 and rotary cutters 45. The cutters 45 cut the strip B along the ends of the box and a cutter 49, past which the box is carried by a conveyer 48, cuts it along the front thereof after which a wedge 50 raises the lid which is fully opened by a cam 51. A mechanical gripper then engages the forming block, removes it from the box and lifts it into the path of a plunger which moves it on to the conveyer 55 by which it is carried back to the body-forming device.