Single drive system for controlling multiple independent gripper shafts
OwnerKonstantin Kupershtoch, Isaac Naor +1inventors
InventorsKonstantin Kupershtoch, Isaac Naor, Ofer Ben Bassat
Life of this patent
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Abstract
An independently driven symmetric cam individually opens and closes two different gripper shafts attached to an impression surface to grip and release leading edges of two different media sheets. Also disclosed is a single drive system for controlling multiple independent gripper shafts includes an impression cylinder, at least two gripper shafts on the impression surface of the impression cylinder to hold at least two media sheets to the impression surface, a dynamic cam to independently actuate each of the at least two gripper shafts, and a single drive motor to mechanically rotate the dynamic cam with respect to the impression surface.
Claims15
A single drive system for controlling multiple independent gripper shafts comprising:
- an impression cylinder;
- at least two gripper shafts on an impression surface of the impression cylinder to hold at least two media sheets to the impression surface;
- a dynamic cam to independently actuate each of the at least two gripper shafts;
- and
- a single drive motor to mechanically rotate the dynamic cam with respect to the impression cylinder.
An independently driven symmetric cam to individually open and close two different gripper shafts attached to an impression surface to grip and release leading edges of two different media sheets.
A method for printing comprising:
- rotating a dynamic cam relative to an impression cylinder using a single drive to open a first gripper set on the impression cylinder;
- rotating the dynamic cam relative to the impression cylinder to close the first gripper set after a leading edge of a first media sheet is inserted under the first gripper set;
- rotating the dynamic cam relative to the impression cylinder to open a second gripper set on the impression cylinder;
- rotating the dynamic cam relative to the impression cylinder to close the second gripper set after a leading edge of a second media sheet is inserted under the second gripper set;
- rotating the dynamic cam at a same rotational velocity as the impression cylinder to maintain the first and second gripper set in closed positions during transfer of ink images to the first and second media sheets until printing of one of the first and second media sheets is complete.
Dependencies are inferred from the claim text.