EP 1183183 B2 20090909 - METHOD AND APPARATUS FOR PACKAGING ARTICLES BY MEANS OF AN ENVELOPE MADE OF A THERMOPLASTIC FILM
Title (en)
METHOD AND APPARATUS FOR PACKAGING ARTICLES BY MEANS OF AN ENVELOPE MADE OF A THERMOPLASTIC FILM
Title (de)
VERFAHREN UND VORRICHTUNG ZUM VERPACKEN VON GEGENSTÄNDEN MITTELS EINER HÜLLE AUS THERMOPLASTISCHER FOLIE
Title (fr)
PROCEDE ET APPAREIL POUR EMBALLER DES ARTICLES AU MOYEN D'UNE ENVELOPPE EN FILM THERMOPLASTIQUE
Publication
Application
Priority
- EP 0004659 W 20000522
- IT PI990031 A 19990521
Abstract (en)
[origin: WO0076848A2] The method allows, in a completely automatic way, to form the enveloppes of size of the article without leaving space between the welding line and the article. The steps are provided of: in a feeding direction arranging at least a web (30) of continuous film that can be welded thermoplastically according to two continuous wings overlapping each other in order to present a longitudinal closed continuous line. The folded web (38) has a front closed end transversally in a previous step. Thermoplastic cutting and welding means are provided (52) transversal to the web. After opening a part from each other the wings opposite to the continuous longitudinal closed edge (33) an article (10) is inserted to be packaged that is arranged along the web between the thermoplastic cutting/welding means (52) and the front closed end (38). Then, at the level of the thermoplastic cutting/welding means (52), there is the transversal pinching (53) of the folded web by means of a transversal gripper (53), leaving the web (30) free of sliding through the gripper. Then, there is the pulling of the web upstream of (45) the transversal gripper and the drawing back of the web that slides through the gripper until a front edge of the article contacts the front closed end. Then, there is a further drawing back step of the web until a rear edge of the article contacts the transversal gripper. Follows the transversal cutting and welding of the web next to the transversal gripper whereby an enveloppe is formed closed at three sides around the article. In this step no elelements are present for supporting the article, against the transversal gripper, thus using the gripper same as blocking means. Finally, the enveloppe is dragged away and further web is fed, the transversal cutting and welding creating a closed front end in the web.
IPC 8 full level
B65B 1/00 (2006.01); B65B 9/093 (2012.01); B65B 59/02 (2006.01)
CPC (source: EP US)
B65B 9/093 (2013.01 - EP US)
Citation (opposition)
Opponent :
- IT 1304430 B1 20010319 - CORTESE CARMELO ANGELO [IT]
- DE 2317257 A1 19741031 - STAHLECKER HANS, et al
- AT 252819 B 19670310 - ELECTRONIC GES FUER HOCHFREQUE
Designated contracting state (EPC)
ES IT
DOCDB simple family (publication)
WO 0076848 A2 20001221; WO 0076848 A3 20010531; AU 6687500 A 20010102; EP 1183183 A2 20020306; EP 1183183 B1 20030827; EP 1183183 B2 20090909; ES 2207541 T3 20040601; IT 1309850 B1 20020205; IT PI990031 A1 20001121
DOCDB simple family (application)
EP 0004659 W 20000522; AU 6687500 A 20000522; EP 00954410 A 20000522; ES 00954410 T 20000522; IT PI990031 A 19990521