Apparatus for aligning an opening of a sack

摘要

Apparatus for aligning a sack disposed at the leading end of a series of shingled sacks, which have been unwound from a roll of shingled sacks and which have openings at their leading ends. The sack is aligned by transversely spaced gripping rollers that are operable to align the leading edge of a sack for proper orientation prior to transfer of the sack to a filling apparatus. An intermittently driven conveyor belt conveys the unwound series of shingled sacks as they are unwound from a roll. At least one pressure-applying roller is disposed above the conveyor belt and acts on the leading sack of the series of shingled sacks and cooperates with a backing roller, which is adapted to be driven, and optional pressure-applying elements, which are adapted to be lowered onto the next following sack.