Unit for laminating a first web onto a second web in a laminating machine and method for manufacturing a multi-layer composite

摘要

A laminating unit to manufacture a multi-layer composite (2) in a laminating machine (1), comprising a laminating rotating roll (16), laminating a first web (3) onto a second web (4), is characterized in that it further comprises:
driving means (42), rotating (R) the roll (16);gripping means (39, 41), maintaining the first web (3) in contact with the roll (16);first detection means (43, 46) emitting first detection signals (44, 47) in accordance with detected longitudinal positions of the first web (3);second detection means (48, 51) emitting second detection signals (49, 52) in accordance with detected longitudinal positions of the second web (4); andcontrol means (53), regulating a rotation speed of the driving means (42) and of the roll (16) as a function of the first and second signals (44, 47, 49, 52), to convey, correct longitudinally positions of the first web (3), and laminate the first web (3) in register onto the second web (4).

主权项

1. A laminating unit to manufacture a multi-layer composite, including a first web and a second web, in a laminating machine, comprising:
a laminating rotating roll, conveying the first web and laminating the first web onto the second web; driving means, rotating the laminating rotating roll; gripping means, maintaining the first web in contact with the laminating rotating roll; first detection means emitting first detection signals in accordance with detected longitudinal positions of the first web; second detection means emitting second detection signals in accordance with detected longitudinal positions of the second web; and control means, configured to increase or decrease a rotational speed of the driving means and of the laminating rotating roll as a function of the first and second detection signals, as required to correct a longitudinal position of the first web relative to the second web, and to cause the laminating rotating roll to laminate the first web onto the second web, such that the first web is laminated onto the second web in register with the second web, the laminating rotating roll being configured to remain in a position such that the first web is in contact with the second web, while registration of the first web with the second web occurs.