Patent ID: 6013148
Filing Date: 2000-01-11
Classification: B65H

Abstract:
An apparatus for joining ends of material webs to each other to form a splice by adhesive means, comprising a machine frame, at least two guide rollers (13, 14) rotatably mounted to said machine frame in fixed positions symmetrically relative to each other and relative to a plane of symmetry (2a) passing through a gap (27) between said two guide rollers, two tiltable carriers (11), two web holding and press-on means (5, 6), linear drive means (10) separately mounting each of said holding and press-on means on a respective carrier (11) of said two tiltable carriers, two journal shafts (12) mounted in said machine frame for journalling said carriers (11) for a rotational tilting movement of each carrier (11) with its respective web holding and press-on means (5, 6), whereby said holding and press-on means are movable angularly and linearly, said two journal shafts (12) being arranged symmetrically relative to said plane of symmetry (2a) and with a spacing from the respective guide roller(13, 14) outside said gap (27) between said guide rollers (13, 14), said spacing being sufficient for permitting said tilting movement, suction means as part of said holding and press-on means for holding a web end in place, each of said linear drive means comprising two separately operable piston cylinder devices, each including a piston rod and a cylinder connected back to back with the respective other cylinder, so that one piston rod carries the respective holding and press-on means while the other piston rod is connected to the respective tiltable carrier (11), for individually and linearly moving each of said holding and press-on means (5, 6) on its respective tiltable carrier (11) in a stepwise manner and in a direction crossing said plane of symmetry (2a) toward each other for applying pressure to a splice being formed and for moving said holding and press-on means (5, 6) away from each other out of contact with a web, and cutting means (16) comprising a single blade (15) operatively mounted for operation in said gap (27).