Patent GB-1075062-A (GB)
Title: Apparatus for separating articles into groups and machines incorporating such apparatus and for packaging the groups of articles in cartons
IPC: B65B35/54
Filed: 1964-02-26
Abstract: 1,075,062. Endless conveyers; carton packaging machines; cartons. R. A. JONES &-CO. Inc. Feb. 26, 1964 [May 13, 1963], No. 8022/64. Headings B8A, B8C and B8P. Apparatus for separating bottles into groups for subsequent packing into cartons comprises a continuously moving stream of bottles engageable after every third bottle by a finger 24 moving in a parallel direction but at a slower rate whereby the movement of the upstream bottles is retarded and thereby spaced from the preceding group of three bottles. Two streams of bottles are conveyed on parallel spaced conveyers 12, 14 each of which comprises an endless chain having plates 44 attached thereto. The advancing bottles are guided by rails 30, 32 off the conveyer 12, 14 on to similar parallel conveyers 34, spaced apart and intermediate the conveyers 12, 14. The rails 30, 32 guide the groups of bottles into opposite sides of cartons 42 being conveyed on an endless chain conveyer 90 intermediate the conveyers 34. A bottle segregating mechanism, Fig. 10 (not shown), is provided adjacent each conveyer 12, 14 and comprises a plurality of fingers 24 pivotally mounted in aligned pairs on two vertically spaced endless chains 106, 122, Fig. 13, each pair being connected by an arcuate surfaced bottle engaging strip 102. An extension 100 of each upper finger 24 carries a roller follower 112 which engages a cam track 114 in an upper plate 116 to control the insertion and retraction of the fingers 24 into the stream of bottles. As the bottles move downstream from the segregating mechanism, they are retained in groups by the insertion into the bottle stream of separation fingers 26 disposed below the level of the fingers 24 and which are inserted and retracted under the action of a cam track 192, 194 engaging a pin 190 of the fingers 26. The latter slide in dovetail slots 170 in supporting blocks 172 which are mounted on a pair of parallel endless chains 174, 176 which move in vertical planes. Guides around the ends of the chains 174, 176 engage the cam pins 190 of the fingers to keep the latter retracted as the pins leave the cam track 192, 194. The fingers 26 maintain the bottles in groups as they slide from the conveyer 14 on to the conveyer 34 whereupon spacers 38 thereon maintain the groups as the fingers 26 are retracted. The cartons are supplied in flat form from a magazine 18, Fig. 6 (not shown) on to a conveyer 20 intermediate the bottle streams 12, 14 and upstream of the conveyers 34. As the carton is moved by pushers on a first, second and main conveyer 90 the carton is erected and is finally conveyed between pushers 88, for reception of the bottles. However, just prior to this reception, tabs are pushed up in the base of the carton by cams, 207, 208, 209, Fig. 17, 18 (not shown) which are synchronized with the movement of the conveyer 90 and prevent contact between the bottles in the carton. Further downstream the top and bottom side flaps 70, 72, Fig. 13, are engaged by plough members 252, Fig. 15, mounted alongside the conveyer 90 and which hold the flaps folded automatically while further plough members 260, Fig. 3 (not shown), fold the front side flaps 74 of the carton inwardly and a mechanism 262 folds the near side flaps 76 inwardly. The latter mechanism comprises two vertically spaced parallel endless chains 264, each incorporating flap engaging fingers 268, upper and lower ones being synchronized. The velocity of the fingers 268 is geared to be greater than that of the carton conveyer 90, to effect the flap closing operation. Further downstream glue is applied to the ends of the folded front and near side flaps by glue applicators 292 supplied with excess glue wiper blades and overflow troughs 300-thereafter the top and bottom side flaps 70, 72 are folded inwardly to glue. The cartons are finally engaged on either side by belts 40, Fig. 8 (not shown), which discharge the cartons from the conveyer 90 at a speed greater than the latter. Three switches spaced along the bottle conveyer 12 are normally kept open by the tops of the bottles passing beneath and the speed of working of the apparatus is controlled by these switches depending on the availability of the bottles passing into the apparatus.