Form-and-fill machine for tubular plastic bags produces bags with flat fins on outsides of welds, spreader being inserted which holds base apart during filling and cooperates with external control which does not contact fins

摘要

The form-and-fill machine for tubular plastic bags produces bags (7) with flat fins (13) on the outsides of the longitudinal (10) and transverse welds. To ensure complete filling a spreader (23) is inserted which holds the base apart. This cooperates with an external control (24) which does not contact the fins.