EP 0096635 B1 19861203 - METHOD AND DEVICE FOR REGULATING THE PRE-STRETCHING OF A PLASTIC FILM, ESPECIFICALLY IN VIEW OF THE PACKAGING OF A LOAD
Title (en)
METHOD AND DEVICE FOR REGULATING THE PRE-STRETCHING OF A PLASTIC FILM, ESPECIFICALLY IN VIEW OF THE PACKAGING OF A LOAD
Publication
Application
Priority
FR 8209878 A 19820607
Abstract (en)
[origin: EP0096635A2] 1. Process for controlling the degree fo prestretching of a stretchable plastic film which passes over at least one prestretching roll before arriving at a use station, particularly for the purpose of wrapping loads, especially palletized loads, making it possible to avoid the sum of the elongation produced by the prestretching and of the additional elongation produced by the tension created in the film before it arrives on the load to be wrapped being greater than the breaking elongation, characterized in that it consists in - continuously sensing the tension in the part of the film included, when the direction of travel of the film is considered, between the last prestretching roll and the use station ; and - causing the speed of at least one prestretching roll to vary correspondingly to the sensed tension.
IPC 1-7
IPC 8 full level
B65B 11/04 (2006.01)
CPC (source: EP)
B65B 11/045 (2013.01)
Designated contracting state (EPC)
BE DE FR GB IT NL
DOCDB simple family (publication)
EP 0096635 A2 19831221; EP 0096635 A3 19841003; EP 0096635 B1 19861203; DE 3368034 D1 19870115; ES 523016 A0 19840316; ES 8403415 A1 19840316; FR 2528020 A1 19831209
DOCDB simple family (application)
EP 83401119 A 19830602; DE 3368034 T 19830602; ES 523016 A 19830606; FR 8209878 A 19820607