EP 0268151 B1 19920603 - METHOD AND DEVICE FOR SEALING THE FOLDING FLAPS OF A PACKAGE
Title (en)
METHOD AND DEVICE FOR SEALING THE FOLDING FLAPS OF A PACKAGE
Publication
Application
Priority
DE 3638627 A 19861112
Abstract (en)
[origin: US4843800A] Packs (10), in the present case cigarette packs, are often wrapped in blanks which consist of sealable material. Folding tabs, for example tubular tabs, side tabs (14, 15) and longitudinal tabs (16, 17), are connected to one another by means of sealing, with heat and pressure being applied. It is intended, despite the high working speed of the packaging machines and of the conveying members of these, that sealing should be carried out accurately and as tightly as possible. For this purpose, sealing members, in particular sealing jaws (41) for tubular tabs and sealing jaws (45, 46) for side tabs (14, 15) on longitudinal tabs (16, 17), are provided in the region of end faces (11, 12), and these execute extremely short stroke movements between a sealing position during a standstill phase of the packs (10) and a retracted position. In the last-mentioned position, during which the packs are transported further intermittently, the sealing jaws (41; 45, 46) rest with only slight pressure against the packs (10) sliding past, as a result of which sealing is stabilized and folding tabs are smoothed. Altogether, very accurate and highly impermeable sealing is achieved in this way.
IPC 1-7
IPC 8 full level
B65B 51/10 (2006.01); B65B 19/02 (2006.01); B65B 51/00 (2006.01); B65B 51/14 (2006.01)
CPC (source: EP US)
B65B 51/14 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
EP 0268151 A1 19880525; EP 0268151 B1 19920603; BR 8706089 A 19880621; CA 1325377 C 19931221; DE 3638627 A1 19880526; DE 3779569 D1 19920709; JP H0784209 B2 19950913; JP S63138925 A 19880610; US 4843800 A 19890704
DOCDB simple family (application)
EP 87116274 A 19871105; BR 8706089 A 19871111; CA 551713 A 19871112; DE 3638627 A 19861112; DE 3779569 T 19871105; JP 28514487 A 19871111; US 11681587 A 19871105