Patent GB-1280844-A (GB)
Title: Packaging apparatus and method
IPC: B65B43/54
Filed: 1969-10-07
Abstract: 1280844 Packaging flowable products LILY CUPS OVERSEAS Ltd 7 Oct 1969 [9 Oct 1968] 49264/69 Heading B8C A method of packaging a flowable product comprises providing a plurality of carriers 40 in a magazine M at a dispensing station, moving a conveyer 50 relative to the dispensing station; providing a plurality of open topped containers 42 in releasably secured relationship with each carrier 40, automatically placing the carriers one at a time on the conveyer 50 in synchronously timed relationship with respect to movement thereof, filling the containers on the conveyer; applying cover structure to the containers on the conveyer, and removing the carriers one at a time from the container 42. As shown, the carriers 40 which are in the form of semi-rigid trays are dispensed from the magazine M, Figs. 2-4, on to the conveyer 50 by a mechanism 74 which is synchronized by means of a cam and lever arrangement 106, 132, 180, 194, 196 with the drive to the conveyer and which moves holding fingers 156, 158 from beneath the lowermost carrier 40 in the magazine M, Fig. 4, to the Fig. 3 position to dispense the carriers singly on to the conveyer 50. The carrier then moves to a sterilizing and filling station 26, 28 disposed within a hood 210, Fig. 9, into which heated sterile air is directed into the containers in the carrier below. The product to be packed which may be cream, is directed to a manifold 234, Figs 7, 8, from which it flows to filling heads 244 where it is pumped through nozzles 284, in response to upward movement of outer sleeves 254 connected to a common actuating member 266 driven from a motor (M<SP>1</SP>), Fig. 6 (not shown), through cam and lever gear (314), (320) and rods (326). The filling heads 244 are swingable to synchronize the nozzles 284 with the conveyer movement by means of a cam and linkage 340, 280. The filled containers then move in the carrier to a closure applying station 30 in which film material on a roll F, Fig. 9, is trained over the tops of the containers, the rims of which are heated by hot air supplied through a conduit 382 which also heats the underside of the film. The film is pressed into engagement with the containers by adjustable rollers 408, after which the carrier and containers pass to a transverse and longitudinal slitting stations 32 and 34, where serrated blades (134), (436), Fig. 10 (not shown), are operated by a cam (472), Fig. 11 (not shown), and synchronized with the movement of the conveyer 50. The longitudinal slitting means includes a roll (486), Fig. 12 (not shown), having knife discs (488) thereon driven through gearing (498), (500). The carrier is then moved to a removal station 36 where the carriers are formed into stacks, Fig. 13. The means for stacking the carriers comprises an oscillating finger 510 which moves a carrier from the conveyer 50 on to a fixed support 514 from which it is elevated by elevating platforms 549 to storage means 556. The latter comprises spaced spring-loaded holding members 600 provided with ramp portions 610 which support the carriers as the stack is built up. When the stack reaches a predetermined height the uppermost carrier engages a sensing element (626), Fig. 14 (not shown), which through a cam (630) and micro-switch (612) energizes a motor (616) driving a pusher element 654 which pushes the stack across the storage space and into a carton (624) applied over a guide sleeve 622.