EP 0811558 A2 19971210 - Transverse sealer for a packaging machine
Title (en)
Transverse sealer for a packaging machine
Title (de)
Quersiegelvorrichtung für eine Verpackungsmaschine
Title (fr)
Dispositif de scellement transversal pour une machine d'emballage
Publication
Application
Priority
- EP 97303687 A 19970602
- EP 97302185 A 19970327
- US 65795896 A 19960604
Abstract (en)
An elongated web of bag-making material (S) is bent into a tubular form by a former (2), transported along a path (A), is filled with articles (W) and sealed by a transverse sealer (10) transversely to its direction of motion. A pair of seal jaws (20) supported by rotary arms (12) are rotated in mutually opposite directions by a power-communicating mechanism (P) which includes a trajectory-forming mechanism (H) such that the seal jaws (20) will each travel on a generally D-shaped trajectory with a linear section along the path (A) of the bag-making material (S). Cramming devices (50) are adjustably attached to the rotary arms (12) and stroke the tubularly shaped bag-making material (S) from both sides in forward-backward direction (X) without substantially closing the bag being formed such that the articles (W) can be more efficiently crammed with empty spaces among them effectively reduced. Stripping rods (42) are attached to the seal jaws (20) for stripping down the articles being dropped into the bag immediately before the transverse sealing and after the cramming by the cramming devices (50) so as to prevent them from becoming caught between the seal jaws (20). <IMAGE> <IMAGE>
IPC 1-7
IPC 8 full level
B65B 51/30 (2006.01)
CPC (source: EP)
B65B 51/306 (2013.01)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
EP 0811558 A2 19971210; EP 0811558 A3 19981230; EP 0811558 B1 20031105
DOCDB simple family (application)
EP 97303687 A 19970602