Patent GB-385628-A (GB)
Title: Improvements in or relating to machines for packaging cigarettes and other rod-shaped articles
IPC: B65B19/02
Filed: 1931-04-29
Abstract: 385,628. Machines for packeting cigarettes and like rod-shaped articles, and making boxes therefor. AKTIEBOLAGET G. AREHNS MEKANISKA VERKSTAD, 20, Alstr÷mergatan, Stockholm. April 29, 1931, No. 12666. Convention date, April 30, 1930. [Classes 18 and 94 (i).] Cigarette-feeding mechanism for packeting- machines comprises two distributing chambers in which the cigarettes are divided into upright rows, pistons for ejecting a set of cigarettes from each chamber alternately, movable carriers for receiving the ejected sets, and a piston common to the carriers for transferring the sets into a compresser chamber. The arrangement is such that while one set is being received by the carriers another is being ejected therefrom. Cigarettes from a magazine are fed into two distributing chambers 68, Fig. 2, from which they are transferred in sets to carriers 108, 109 by pistons 119, 121 respectively. The carriers are mounted on a cam-actuated slide 111 which can be operated to position the carriers alternately in front of a distributing chamber 68 and in front of a compresser chamber 118, the latter being mounted for vertical movement so that sets of cigarettes, transferred thereto by a plunger 120, can be lowered to the level of the box-carrying chain and the cigarettes ejected therefrom by a plunger 137<x>, Fig. 3. The cigarettes are forced together into a compact row by fixed and movable side walls 134, 135 respectively, the latter being moved inwards during the lowering of the compresser chamber by reason of their pivotal connection with fixed pins 137. The Specification as open to inspection under Sect. 91 comprises also mechanism for forming the inner boxes or slides, cigarette-feeding mechanism and means for introducing the filled slides into outer covers or shells, all of which units are located in the straight path of an endless conveyer which is provided with suitably shaped compartments having hook-shaped walls to accommodate and retain the slides during the various operations. Slide feeding and forming mechanism. Blanks a, Fig. 3 (Cancelled), are withdrawn one by one from a magazine 9, by means of a suction device 11 and gripping members 25, 34, and positioned below a piston 26 carried by a rod 48 which is reciprocated by means of a cam-actuated lever arm 50, 51. When the plunger is lowered, it forces the positioned blank a through a U-shaped folding member 54 and into a compartment 47 in an endless chain, thereby causing the side flaps and one of the end flaps of the blank to be bent upwards. The blank is supported during the shaping operation by spring- actuated pins 52 which are carried by a vertically movable slide 55 and are pushed through holes provided in each compartment when the latter is positioned below the plunger or piston 26. The suction device 11, which comprises a perforated pipe or head connected by means of pipes 12, 13<x> to a suction pump 13, is carried by a pivotally mounted member 15 and is oscillated by means of a camactuated arm 17, to seize the front end of the lowermost blank and present it to the grippers, the latter receiving their reciprocal movement from a camcontrolled lever 27 and link 28. Stop-motion acting as a result of faulty delivery. A series of fingers or feeling members 125, Fig. 3, pivotally mounted above the transferring piston and supported by a cam-actuated arm 98 and link 96 are allowed, by movement of the latter, to move downwards into a set of compartments positioned below. In the event of one or more cigarettes being absent, excessive movement of the corresponding feeler takes place and its arm 125<x> makes contact with a plate 130 to stop the machine. Shell feeding mechanism. Shells in collapsed form, are withdrawn one by one by a twostage movement of a cam-actuated plunger 143, Fig. 5 (Cancelled), and inserted between two perforated plates 145, 150 which are associated with a suction pump 146, the plate 150 being mounted for vertical movement by any suitable mechanism during the operation of the pump 146 to open the shell sufficiently to receive a filled slide. A mouthpiece 153, located between the conveyer and the suction plates, facilitates the entry of the slide into the shell when the latter is pushed forward by a reciprocating plunger 157, and the flap of the inner box is held down by plate 161 which is raised and lowered by the movement of the plunger slide 158. The finished box is subsequently moved into a delivery channel by a piston or the like. The operations at each stage are carried out by means of cams mounted on the main or cam shaft 18 and the latter by means of bevel gearing and maltese wheel mechanism imparts an intermittent movement to the conveyer chain to position the compartments, successively below or adjacent the supplying units of the apparatus. The end flaps of the inner box or slide are turned in by stationary bars as the slide is carried from the forming to the covering position. This subjectmatter does not appear in the Specification as accepted.