Patent ES-367570-A1 (ES)
Title: Assortment assembling apparatus
IPC: B65B5/12
Filed: 1969-05-22
Abstract: An assortment assembling apparatus, particularly for food products such as cookies, wafers &c. includes article feeding stations 3c &c. which each co-operate with conveyers 113, 122 carrying respectively article receiving buckets 114, 123 each of which is in transverse alignment with a bucket on the other conveyer, the feeding stations being arranged relative to the buckets for placing articles in a plurality of stacks in transversely extending-rows in the buckets 114, 123 and wherein, following the feeding stations, there are arranged lateral transfer pushers 198 which transfer the, or each, row of stacked articles from one bucket 114, to its transversely aligned bucket to assemble an assortment. As shown, each bucket 114, Fig. 4, has a pair of hook tabs 139 to retain the edges of a liner blank 165 after it has been picked off from a magazine 166 of blanks by the suction cups 170 of a compounded lever mechanism 167 and deposited on the top flanges 136, 137 of, and a ram mechanism 174, moving synchronously with the conveyer 113, has pushed the blank down into the bucket. The buckets 123 have pivotal sides 150, 158, Fig. 5, and progress, in transverse alignment with the buckets 114 successively through ten substantially identical feeder units 101-1 to 101-10 each equipped with its own operating cam-shaft 176 driven indirectly from a shaft 106. Each of the feeder units, Figs. 1a, 2a, comprises four curved shoots 179 for feeding four products P-3 to P-6 in a transverse row in the trough of the leading, or trailing, side of a bucket 123 and two products P-1 to P-2 side-by-side into the blank 165, the products each being individually placed in the respective bucket 144, 123 by a suction cup mechanism 182 which is adapted to pick-up a product from a reciprocable delivery plate 180. The suction cups 181 are swivelly mounted, Fig. 11, so that some of the product stacks such as P-4, Fig. 3e, are stacked upon their edges. The delivery cups 181 are set progressively higher in successive units the upward adjustment being diagonal in the case of the tipped cups. The input shoots 179 are adjustable to facilitate the stacking in several rows, the pair of buckets emerging from the final feeder unit 101-10 containing twelve stacks of five products arranged four stacks in a row. As the buckets 114, 123 arrive at a transfer station, Fig. 1c, one of a number of transfer troughs 190, carried by chains 186 which move synchronously with the conveyers 112, 122, is aligned transversely between each pair of buckets 114, 123. A guide rail 199, Fig. 2c, is adapted to direct pushers 198, carried by cross-rods 197 on a pair of chains 195, diagonally across the paths of the aligned buckets 114 and guide troughs 190 to push the liners 165 with its stacks of products through the guide trough 190 and into the middle of the corresponding buckets 123. As each bucket 123 continues its progress forwardly, closing rollers 153 on its base ride over an upward jog 202 on a rail 201 to swing the sides 148, 150 of the bucket 123 upwardly. A third series of buckets 211, generally of the same construction as buckets 114, travel forward on another pair of conveyer chains 204 and receive tray blanks 212 from an infeed hopper 215, vacuum pick-off unit 216, ram unit 217, and a small conveyer 222. The buckets 123 are raised to move into accurate alignment with the buckets 211 which run between side rails to deflect downwardly the tray flaps 223, Fig. 3h. Cross pusher mechanism 226, generally similar to the pusher 198, and which also includes backing plates 236, push the cartons of products from the buckets 123 into the corresponding buckets 211 which move on to a sealing station. Forward progress of the buckets causes thin backing fins 237 to be lowered adjacent the front and rear ends of the tray, and the tray side tabs 224 to be bent inwardly. Adhesive is applied, at 241, to the flaps 223 which are then swung upwardly by tapering deflectors 244 before passing to resilient squeezer belt 245, the backing fins 237 being removed upwardly. Pushers 253, which act diagonally across the path of the buckets 211 eject the loaded and sealed tray 212 from each bucket 211 and deliver it to a packing station.