MARK REGISTRATION DEVICE FOR FILM IN FORMING/FILLING/ PACKAGING MACHINE

摘要

PROBLEM TO BE SOLVED: To increase the reliability of a mark registration by a method wherein a slit is formed on a container film in the width direction at a position between adjacent containers, and when a sensor detects a mark, or when the mark detection becomes impossible, a manual hauling member is placed in the slit, and the film is hauled to the downstream side. ;SOLUTION: A pitch P₁ between detection marks m₁ of a cover film f₁ is larger than a pitch between containers, and even if the container and a display mark M₁ are registered at the time of the beginning of a packaging, the display mark M₁ will be positionally slipped to the container as the packaging is advanced. When this state is detected by a sensor, a manual hauling member 20 is raised by operating a cylinder 21 of the manual hauling device 20, and its protruding part 22 is made to protrude upward through a slit (s) on a container film. Under this state, when the container film f₂ and the cover film f₁ are joined and sealed, the cover film f₁ is manually hauled to the downstream side by a length which is determined by a protruding amount of the protruding part 22, and a mark registration is performed.;COPYRIGHT: (C)1997,JPO