Patent GB-1356872-A (GB)
Title: Apparatus for packaging and packing packages of yarn
IPC: B65B5/10
Filed: 1972-01-07
Abstract: 1356872 Apparatus for packaging and packing bobbins of yarn TEIJIN Ltd 7 Jan 1972 860/72 Heading B8C In a method of packing synthetic yarn packages 3, formed on supports such as bobbins 1, a pallet 4, loaded with packages of yarn 3, is fed from a roller conveyer 5 on to a turntable 6 which rotates through an angle of 90 degrees to a position 7 where bobbin arresters 11, carried by a horizontally movable shifter plate 13, are lowered to pick up the bobbins and ascend as the shifter plate 13 is advanced to the right, Fig. 3, to strike a limit switch B and stop in a position directly above a lift table 72. Vacuum-operated, bag-holding, bars 50, 50<SP>1</SP>, carried by a horizontally movable bed plate 33 and carrying three open bags 27 picked up from a bag-making machine 20, is moved to the left by an aircylinder 36 to strike a limit switch L and stop with the bags vertically aligned below the bobbins 3. Simultaneously, a carton 83 is fed forward from a supply roller conveyer 71 on to the lift table 72 to strike a limit switch Q 1  and, upon actuation of all of the limit switches B, L, Q 1  the bobbin arresters 11, carried by a support plate 12, are moved downwardly by an air cylinder 14 at the same time as the lift table 72 commences to ascend by means of a motor (80) actuating through rack (78, 81) and pinion (79, 79b) mechanism, Fig. 8 (not shown), the holding bars 50, 50<SP>1</SP> remaining stationary. When the bobbins descend to just above, and the carton 83 is raised to a position just below; the bottom of the bags 27 limit switches O and S generate signals to stop respectively the movement of the bobbins 3 and the table carrying the carton 83 whereupon the arresters 11 release the bobbins 3 and start to ascend and the shifter plate 13 commences to retreat. The vacuum is then released from the holding bars 50, 50<SP>1</SP> as their bed plate 33 begins to retreat, the bags 27 containing the packages 3 falling into the bottom of the carton 83 and the lift table 72 starting to descend. At its lowest position one of the drivingly interconnected rollers on the lift table comes into contact with a driving roller (82), Fig. 8 not shown, whereupon a first stop (87a) falls and the carton advances to a stopper (87b) to cause a limit switch Q 2  to generate a signal, and shift the carton by the amount of one partition. Other stoppers, not shown, are adapted to position the carton four times to receive subsequent rows of packaged bags 27. If the support plate 12 is provided with two rows of arresters one shifting of the carton 83 will suffice. Instead of shifting the carton it is possible to move the package supply means 10 and the bag-holding means 30. In the bag manufacturing machine 20 three tubular films 21 are drawn, by high speed rollers 23 intermittently driven synchronously with the movement of the bag holding bars 50, 50<SP>1</SP>, from supply rolls 22 and are transversely sealed and cut respectively at 24 and 25. The bars 50, 50<SP>1</SP>, which are each divided into compartments fed individually through constrictors with compressed air, Fig. 15 (not shown), are movable parallel to each other, on bars 34, by a motor 42 which acts through a linkage 37. The cartons are fed one-by-one on to the lift table 72 by movable guides (85, 85<SP>1</SP>), Fig. 9 (not shown), which approach one another to grip the sides of a carton and advance it past stationary guards 85, 85<SP>1</SP>. In order to provide for an unobstructed enty of the packages in the bags 27 and in the carton 83 the outer two arresters 11 are moved further apart with respect to the middle arrester 11 as the packages enter the bags and are then brought closer together as the packages become fully inserted within the bags and the latter in the carton. In order to make the bag opening operation more accurate the bag-holding bars 50, 50<SP>1</SP> are moved stepwise, that is, the interval between the bars is narrowed after they have been moved apart a certain extent and then the interval is increased.