Patent GB-227934-A (GB)
Title: Improvements in automatic machines for packing cigarettes and articles of similar shape
IPC: B65B19/02
Filed: 1923-10-26
Abstract: 227,934. Molins, W. E. Oct. 26, 1923. Packeting cigarettes &c. in receptacles. - In machines, for packing cigarettes and articles of similar shape, of the type in which packets are made by formers and are filled before the side folds are secured by adhesive, the packet is transferred into the filling position by continuously - rotating members which grip the packet during transfer and slip past it during filling. As shown, a packet forming mechanism is mounted on a frame 1, Fig. 1, and comprises a reciprocating plunger 4 on which the packet is formed and stripped therefrom in the manner described in Specification 1116/11, [Class 94 (ii), Paper bags &c.]. The plunger is guided by rollers 5, 6 and reciprocates between jaws 7, rising clear thereof for a short time during which the blank is fed by rollers 2, 3, 8, Fig. 5. A blank is cut from a web or fed from a stack and arrives between uniformly rotating rollers 2 and beneath a roller 3 rotating at high speed. A following roller 8 is raised into contact with the roller 3 through the action of a striking piece 14 on the plunger 4, which moves levers 13, 10 and elevates the roller when the plunger is clear of the jaws 7. The blank is fed into position against a stop 18 and the plunger descends and carries the blank through folding and stripping mechanism to form a packet open at one end as described in the above-mentioned Specification with the exception that the blanks are free from adhesive. The packet is held in a channel 20, Fig. 1, and is pushed downwards by the succeeding packet into transfer mechanism comprising rotary discs 23 of glass or like transparent material. A movable guide plate 25 and a fixed guide 24<a> form a channel through which the packet enters between the discs. A packet K takes up the position L, Fig. 7, and travels round to the position D, being lightly gripped by the discs. The leading end of the packet meets a fixed stop 33<a> and is depressed below the level of a top plate 45<a> by a cam operated arm 30<a>, the forward end 33 of which depresses a spring stop 32. The packet is then in position to be filled with cigarettes. The cigarettes are fed down a shoot 35, Fig. 1, by any suitable means, such as a vane hopper feed as described in Specification 216,326, and pass into the range of pusher-pieces 34 each of which carries a group of cigarettes through a mouth-piece 36 and into a packet. The mouth-piece is mounted on a sliding carriage 37<a> and enters the packet while the latter is held stationary against the stop 32. The table may have a depression to allow the packet to bulge downwards during the insertion of the charge. The filled packet is carried by a pusher-piece 34, the stop 32 being meanwhile raised, beneath a plate 45<a>, Figs. 1 and 9. Guide pieces 46<a> control the packet as it enters between folders 46 which lift the upper side flaps and allow gumming wheels 50 to apply adhesive to the lower flaps. Folders 53 then press the upper flaps down on to the adhesive and the packet passes to a delivery wheel, consisting of a pair of discs 54, Fig. 2, of metal but otherwise similar to the transferring apparatus. The discs grip the packet and carry it in front of an ejector plate 55 oscillated to transfer it into a stacker 60<a>, or it may proceed to a boxing apparatus of the kind described in Specification 205,226 or into a closing or flap turning apparatus. The sides of the stacker, which may be heated by electric &c. heaters 62<a>, are opened at each stroke of the ejector, being mounted on arms 68 pivoted at 69 to the frame, and operated by a crown cam 62 and arm 64. In the event of a group of cigarettes not being enclosed in a packet, a feeler drops between the cigarettes and prevents the ejector plate 55 from feeding them into the stacker. The blank feed may be fitted with creasing apparatus such as is described in Specification 199,507, [Class 100 (i), Feeding and delivering webs &c.]. The blank may consist of a double sheet, and one or several rows of cigarettes may be fed to each packet.