Patent GB-1014935-A (GB)
Title: Packing machine
Inventor: FRITH DAVID ARTHUR
IPC: B65B21/14
Filed: 1963-03-14
Abstract: 1,014,935. Packaging machines. C. F. TAYLOR (UNITY DESIGNS) Ltd. June 11, 1964 [March 14, 1963], No. 10207/63. Heading B8C. A machine for packing jars or the like in a carton comprises a carton receiving and erecting station, a carton filling station and a carton gluing and closing station, the operation of the carton filling station and the feeding of a carton beyond the filling station being dependent upon the presence in the correct position of the carton and the articles to be packaged respectively. Collapsed cartons with top and bottom flaps extending outwardly are stacked in a magazine 4 (Fig. 2) and are fed individually by a reciprocating plate member 7 incorporating a suction pad 12 to the carton erecting position 6. Here a suction device 13 rocks up to engage the upper surface of the collapsed carton and then back again to erect the carton. Rocker arms 20 and 21 push the vertically disposed rear flap F<SP>1</SP> and front flap F<SP>2</SP> inwardly and outwardly respectively (Fig. 8). Guide rails 25 and 26 fold flap F<SP>3</SP> inwardly and flap F<SP>4</SP> outwardly as a pusher 23 progresses the carton to the filling station 3. During this movement stationary folders spread the flaps F<SP>5</SP>, F<SP>6</SP>. Jars 31 are fed six at a time into the carton loading head 32 of the filling station on a conveyer 30 which is parallel to the path of the cartons. " Turnstiles " 33, 34 control the entrance of the jars to the loading head 32 and are themselves controlled by the movement of a carton to the filling station. The flap F<SP>8</SP> of the advancing carton engages between a pair of plates 40 in a switch unit 41 to close circuits which energize solenoids 48 (Fig. 3) to cause withdrawal of locking members 46 from notches 45 in cams 43 fixed on the shaft of each turnstile. Thus the passage of a carton to the carton filling station serves to free the turnstiles to allow the feeding of jars into the loading head. Also on each turnstile shaft is a cam 44 against which presses a spring-loaded roller (Figs. 4, 5, not shown). The cam shape is such that when the locking member 40 has been withdrawn by a carton arriving at the filling station, the turnstile is rotated slightly so that if no jars arrive to turn the turnstile, the member 46 cannot slip back into the same notch in the cam 44. It thus remains disengaged and a switch actuator 50 on the member 46 is prevented from closing a switch for initiating filling and forwarding of a completed package. When jars arrive they rotate the turnstiles until the next notch 45 presents itself enabling the switch to be closed and the turnstiles locked. Rocker arms 89 (Fig. 3) ensure that a carton is correctly positioned in relation to the loading head. A ram 37 pushes the jars from the loading head into the waiting carton. Conveyer elements 71 (Fig. 2) push the filled carton past guide rails and rocker arms (not shown) for folding in the flaps F<SP>2</SP>, F<SP>4</SP>, to nozzles 75 which spray glue on these flaps and flaps F<SP>1</SP>, F<SP>3</SP>. Guide rails 77 then turn the flaps inwardly to close on the glue and brushes 80 engage the carton to press the glued flaps together.