초록 ▼

A method and apparatus for the automatic filling of plastic bags with, for example, elastic, soft and deformable contents. In order to provide for the automatic handling of empty bags without intermediate, especially manual, steps, the invention provides that the empty bags are attached by extending

A method and apparatus for the automatic filling of plastic bags with, for example, elastic, soft and deformable contents. In order to provide for the automatic handling of empty bags without intermediate, especially manual, steps, the invention provides that the empty bags are attached by extending flaps to a plastic carrier web across a tear line. The apparatus of the invention places a quantity of goods into the bag by means of an axially moving filling piston which passes between spreadable jaws that hold the bag open. The continued motion of the filling piston eventually exerts a force sufficient to cause fracture along the tear line and separation of the filled bag from the flap which stays attached to the carrier web. The piston then moves the filled bag into position for sealing. A number of embodiments is presented.

대표청구항 ▼

A method for automatic filling of container bags, said method including supplying empty bags on a carrier web at a scheduled cyclic rate, opening the first bag by means of an opening funnel, placing the goods in the bag and removing the bag from the carrier web and wherein, according to the inventio

A method for automatic filling of container bags, said method including supplying empty bags on a carrier web at a scheduled cyclic rate, opening the first bag by means of an opening funnel, placing the goods in the bag and removing the bag from the carrier web and wherein, according to the invention, the method comprises the steps of: supplying said bags with extending flaps which are permanently attached to the carrier web; opening the first bag while the bag is attached to the carrier web; moving the opened bag into a predetermined position with its mouth over the end of the opening funnel so that the opening funnel extends into the bag to spread the mouth thereof and to provide guide surfaces for the fill goods; holding the bag open; placing the goods in the bag by means of a moving filling piston; and causing the separation of said bag from the extending flap along a tear line by pressing the goods against the bottom of the bag, while leaving the flap permanently attached to the carrier web.