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US 6,877,427 B2Granted
Quality control device
AssigneeKoenig & Bauer Aktiengesellschaft
InventorGerald Josef Reinhard
Life of this patent
Estimating the term…
Abstract
A quality control device includes a suction box, at least one gripper which can be displaced along a suction surface of the suction box, and a CCD camera. A belt, which can be displaced in a sheet transport direction, is disposed on the suction surface of the suction box.
Claims27
A device for quality control of an imprinted sheet comprising:
- a movable gripper adapted to pull a sheet in a sheet conveying direction at a first speed;
- a CCD camera;
- a belt supported for movement in said sheet conveying direction at a second speed;
- a motor for driving said belt;
- a drive motor control for regulating said motor to move said belt so that said second speed is not greater than said first speed;
- and
- means for sensing a pulling force exerted by said movable gripper on the sheet, said drive motor control regulating said second speed of said belt to not exceed a threshold value of said pulling force.
4 more elements
A device for quality control of an imprinted sheet comprising:
- a movable gripper having a first speed and adapted to pull a sheet in a sheet conveying direction;
- a CCD camera;
- and
- a belt supported for movement at a second speed no greater than said first speed in said sheet conveying direction, said sheet conveying direction being vertical.
1 more element
A device for quality control of an imprinted sheet comprising:
- a movable gripper adapted to pull a sheet conveying direction;
- a CCD camera;
- a belt supported for movement in said sheet conveying direction, said sheet conveying direction being vertical;
- and
- carriers on said belt, said gripper including a track, said carriers being in engagement with said track of said gripper.
2 more elements
A device for quality control of an imprinted sheet comprising:
- a movable gripper adapted to pull a sheet in a sheet conveying direction;
- a track for said movable gripper;
- a CCD camera;
- a belt supported for movement in said sheet conveying direction;
- a drive motor for said belt;
- and
- carriers on said belt, said carriers engaging said track of said grippers.
4 more elements
Dependencies are inferred from the claim text.