Apparatus for automatic insertion of valved bags on bag-filling machines
AssigneeVentomatic Italiana S.r.l.
InventorMario Moltrasio
Life of this patent
Estimating the term…
Abstract
An apparatus for automatic insertion of a valved bag of paper or other flexible sheet material on to a charging nozzle of a machine adapted to fill the bag with material in granular or powder form, in which the bags are fed from a supply thereof sequentially by means of a distributing device to an inserting device. The inserting device includes means for picking up a bag from the distributing device, means for opening the valve and for testing the operativeness of the valve, means for discarding a bag with an inoperative valve and means for feeding a bag with an operative valve to the charging nozzle of the bag-filling machine.
Claims11
An apparatus for automatic insertion of a valved bag on a charging nozzle of a machine adapted to fill the bag with material in granular or powder form, comprising a distributing device and at least one bag inserting device, said distributing device for receiving bags with their valves closed from a supply thereof and for feeding them sequentially to at least one bag inserting device, said distributing device including conveying means extending horizontally beneath each such said inserting device, each such inserting device including a movable bag-deflecting member for picking up a bag from the distributing device and which is arranged in a grazing manner relative to the conveying means and which causes the bag to be deflected from a horizontal position on the conveying means into a vertical position, two juxtaposed running endless belts and at least one set of pressure rolls cooperating with each belt, said running belts and pressure rolls being positioned for receiving a deflected bag between them for entraining and conveying the bag therebetween upwardly valve-end first towards two bag-holding jaws arranged above said running belts and pressure rolls, means for engaging said jaws against opposite sides of the bag below the valve end of the bag, means for arranging the bag top end at the valve side in a horizontal position above said jaws and means for partially opening the valve, means for testing the operativeness of the partially opened valve, means for discarding a bag with an inoperative valve, and means for placing a bag with an operative valve in a position in which the valve is adapted to engage the charging nozzle.
A machine for automatically inserting a valved bag made of flexible sheet material, such as paper, and having an openable valve located at one end of the bag onto a charging nozzle of a bag-filling machine for filling the bag with material in granular or powdered form comprising:
- at least one bag-inserting apparatus for opening the valve of a valved bag, for testing the opened valve and for inserting the bag with its valve opened onto the charging nozzle of such a bag-filling machine;
- distributing apparatus for receiving the valved bags from a supply thereof with their valves closed and for feeding them sequentially to at least one such bag-inserting apparatus;
- said bag-inserting apparatus including bag picking up means for picking up a bag from said distributing apparatus and for feeding the bag in a first direction valved-end first,
- stop means for sensing the position of a bag being conveyed and for stopping said picking up means when the valved end of the bag has reached a predetermined position,
- a pair of opposed jaws operatively associated with said picking up means and being positioned on opposite sides of the bag when the bag is in said predetermined position,
- operating means connected to said jaws for relatively closing said jaws against opposite sides of the bag below its valved end,
- bag pulling means for pulling the bag back in the opposite direction for pulling the valved end of the bag against said jaws for arranging the valved end of the bag in a traverse position against said jaws,
- means for opening the valve,
- means for testing the operativeness of the opened valve,
- means for discarding a bag with an inoperative valve, and
- means for placing a bag with an operative valve in a position in which the valve is adapted to engage the charging nozzle.
An apparatus for automatic insertion of a valved bag on a charging nozzle of a machine adapted to fill the bag with material in granular or powder form comprising:
- two juxtaposed running endless belts and at least one set of pressure rolls cooperating with each belt,
- a pair of bag-holding jaws arranged above said running belts and pressure rolls,
- said running belts and pressure rolls being positioned for receiving a valved bag between them for entraining and conveying the bag therebetween upwardly valve-end first towards said pair of bag-holding jaws,
- means for engaging said jaws against opposite sides of the bag below the valve end of the bag,
- means for arranging the top end of the bag at the valve side in a horizontal position above said engaged jaws and means for partially opening the valve,
- means for testing the operativeness of the partially opened valve,
- means for discarding a bag with an inoperative valve, and
- means for placing a bag with an operative valve in a position in which the valve is adapted to engage the charging nozzle.
Dependencies are inferred from the claim text.