Emptying device for bag packs in dosing guns - uses piston to press bag against piercing spikes on front part of tube holder

摘要

The bag pack (1) is placed in the tube (2) whose fold-down front part (4) is connected by a film hinge (3). The tube is closed at the back by the piston (5) which is operated pneumatically or mechanically. When the bag is punctured by the spikes the contents are emptied through the interchangeable outlet nozzle (7) which is also set on the front part. ADVANTAGE - The bag can be used like a normal cartridge but is less expensive to manufacture.