Machine for sliding valved sacks onto the filling nipple of a filling machine
AssigneeWindmoller & Holscher
InventorFritz Achelpohl
Life of this patent
Estimating the term…
Abstract
Sacks having a filling valve at the top are successively taken from a storage station and pushed onto the outlet nipple of a filling machine by an apparatus comprising storage means for the sacks and means for separating the sacks and feeding them in a vertical position to tong means which are displaceable on a guide between the feeding means and the nipple and engage each sack below the valve. The feeding means comprise a double belt conveyor and, parallel thereto at the level of the valve, a double suction belt for pre-opening the valve, the tong means including fingers which engage in the pre-opened valve.
Claims8
An apparatus for placing valved sacks onto the filling nipple of a filling machine, comprising storage means for valved sacks having a valve in the side wall of the sack, means for feeding the valved sacks individually in a vertical position with the valve positioned at the upper end of the sack, said feeding means including a double belt conveyor mounted for movement about vertical axes and a double suction belt for opening the valve, said double suction belt mounted for movement parallel to the double belt conveyor at the vertical level of the valve in the side wall of the sack, guide means mounted parallel to the filling nipple, and tong means mounted on the guide means for movement between the feeding means and the filling nipple, said tong means having means for engaging the sack below the valve and spreading tong means carrying finger means for engaging in the pre-opened valve so that the valve is maintained open and placed onto the filling nipple during the movement of said tong means.
An apparatus for placing valve sacks onto the filling nipple of a filling machine, comprising storage means for storing a roll of valved sacks having a valve in the side wall of the sack, said storage means including an unwinding apparatus for suspending the roll, said roll including a web of consecutive sacks, means for withdrawing the web of consecutive sacks from the roll and introducing each leading sack into a feeding means, means for severing each leading sack from the web supplied to the feeding means, said feeding means feeding the sacks individually in a vertical position with the valve positioned at the upper end of the sack, said feeding means including a double belt conveyor and means for moving the belts of the double belt conveyor relative to one another in the sequence of the sack feeding to form a gap between the belts, guide means mounted parallel to the filling nipple, and tong means mounted on the guide means for movement between the feeding means and the filling nipple, said tong means including means for engaging the sack below the valve, for opening the valve and for placing the valve over the filling nipple.
Dependencies are inferred from the claim text.