초록 ▼

A tie 24 seals an outer bag 26 and an inner line bag 28 of a container. The inner liner bag 28 is fed into a tubular discharge chute 30 and the tubular end of the outer liner bag is passed over the outside of a chute 30 to extend over an inflatable seal 32. Then two opposed pinch bars 34 on either s

A tie 24 seals an outer bag 26 and an inner line bag 28 of a container. The inner liner bag 28 is fed into a tubular discharge chute 30 and the tubular end of the outer liner bag is passed over the outside of a chute 30 to extend over an inflatable seal 32. Then two opposed pinch bars 34 on either side of the container, just below the tie 24, are actuated by pneumatic cylinders 36 to move towards each other and to pinch the inner and outer bags 26 and 28 just below the tie. Then a seal 32 is inflated to urge the seal against the inner face of the outer bag. Then the tie 24 is removed and the pinch bars are retracted before moving the chute 30 downwardly by retracting pneumatic cylinders 38 to take the lower end of the outer bag downwardly.

대표청구항 ▼

[ What is claimed is:] [1.] A bag discharge apparatus of the type adapted for emptying material from a multi-layer bag including an inner liner and an outer layer, the bag having respective upper and lower regions, a plurality of sides defining adjacent corners, and a lower opening terminating in a

[ What is claimed is:] [1.] A bag discharge apparatus of the type adapted for emptying material from a multi-layer bag including an inner liner and an outer layer, the bag having respective upper and lower regions, a plurality of sides defining adjacent corners, and a lower opening terminating in a neck having a discharge opening through which material is emptied, said apparatus including a frame for suspending the bag therefrom, the frame having at least four side support members affixed thereto for supporting the bag, a support plate having an opening defined therein for supporting the lower region of the bag and through which the material is discharged, and at least two lift means connected to the frame for moving the lower region of the bag downwardly relative to the upper region of the bag, wherein the improvement comprises:(a) first, second, third and fourth corner massage cylinders attached to respective side support members and in respective interior corners of the frame for massaging the lower region of the bag by urging the corners of the bag repeatedly inwardly, thereby ensuring that any material contained in the corners is dislodged and for preventing the neck of the bag from clogging as material is discharged therethrough; and(b) an inflatable seal attached to said support plate and adapted for being positioned between the inner liner and the outer layer of the bag and for sealing the neck of the bag by inflatably communicating with an inner face of the outer layer of the bag, thereby preventing material from prematurely flowing through the discharge opening of the bag.