Abstract:
PROBLEM TO BE SOLVED: To improve a material web so as to obtain improved web motion characteristics during revolution of a drum.SOLUTION: A device includes an adjustable drum which inverts a material web. The drum can be adjusted with two degrees of freedom and is connected to two actuators. At least one of the actuator has one side held by a first connection portion and the other side held to revolve by a second connection portion connected to at least one drum. At least one of the actuators is connected to a calculation circuit, which calculates a length L of the actuator according to a numerical expression from a relative vector interval between the first connection portion and second connection portion of a predetermined pivot and a predetermined angle α of revolution of the drum, and substitutes (α=0°) in the vector interval of the second connection portion from the pivot when the drum is not revolved.
Abstract:
The device (1) has an adjustable roller (4) deflecting the goods path. The roller is adjustable around two degrees of freedom and stands in active connection with two actuators (17) such that each of the degrees of freedom is associated with one of the actuators. The roller is held in a guide (7). One of the actuators is a linearly adjustable drive. A goods path regulator (13) stands in active connection with the roller. A path edge sensor (10) is provided to detect the position of a path edge (9) of the goods path.
Abstract:
PROBLEM TO BE SOLVED: To provide a calibration element taking account of the dependence of an object to be detected on thickness with a simple structure. SOLUTION: The calibration element 1 has at least one support foot 8 to specify a relationship between an object thickness 19 and image-forming magnification 18, and the length 9 of the support foot 8 is selected to produce a change that can be evaluated within the image forming magnification 18 of camera images 14, 14' by reversing the calibration element 1 to set it down on the at least one support foot 8, and the length 9 of the at least one support foot 8 is at least twice as large as the wall thickness 10 of the calibration element 1 in a calibration region 4. COPYRIGHT: (C)2009,JPO&INPIT