DISPOSITIF DE COMPENSATION DE MOUVEMENT DE BANDE PELLICULAIRE POUR UNE COMPENSATION DE MOUVEMENT DE BANDE PELLICULAIRE ENTRE UNE SECTION DE MOUVEMENT VERS L'AVANT CONTINU ET UNE SECTION DE MOUVEMENT VERS L'AVANT INTERMITTENT

摘要

The present invention relates to a web film movement compensating device for a web film movement compensation between continuous forward movement section and intermittent forward movement section comprising two guide rollers (1, 2) rotating freely in stationary positions between a continuous driving device (5) and an intermittent driving device (6), two compensation rollers (3, 4) rotating freely on two respective pivoting arms (7, 8) oscillating about pivot shafts (11, 12), an elastic element (9) connected to one of the pivoting arms (7, 8) to actuate the corresponding compensation roller to move away from the guide rollers, and a movement transmission mechanism transmitting an oscillating movement from one of the pivoting arms (7, 8) to the other. A web film (50) moved by the driving devices is supported on the guide rollers (1, 2) and on the compensation rollers (3, 4) forming a meander.