Patent classifications
B41F21/05
TRANSPORT CYLINDER, DRYING UNIT COMPRISING THIS TRANSPORT CYLINDER, AND SHEET-FED PRINTING PRESS COMPRISING THIS DRYING UNIT
In some examples, a transport cylinder for transporting a sheet-format substrate includes at least one channel extending on an outer surface of the transport cylinder in an axial direction. Each channel includes at least one gripper, which is supported on a shaft, for holding a substrate on the outer surface of the transport cylinder. Each channel is covered by a respective cover at the outer surface of the transport cylinder. The cover and/or a shaft supporting the at least one gripper may include a cooling unit. In some examples, a drying unit that includes the transport cylinder may further include an electron beam for curing a printing fluid on a substrate on the transport cylinder. In some examples, a printing press may include the drying unit including the transport cylinder.
TRANSPORT CYLINDER, DRYING UNIT COMPRISING THIS TRANSPORT CYLINDER, AND SHEET-FED PRINTING PRESS COMPRISING THIS DRYING UNIT
In some examples, a transport cylinder for transporting a sheet-format substrate includes at least one channel extending on an outer surface of the transport cylinder in an axial direction. Each channel includes at least one gripper, which is supported on a shaft, for holding a substrate on the outer surface of the transport cylinder. Each channel is covered by a respective cover at the outer surface of the transport cylinder. The cover and/or a shaft supporting the at least one gripper may include a cooling unit. In some examples, a drying unit that includes the transport cylinder may further include an electron beam for curing a printing fluid on a substrate on the transport cylinder. In some examples, a printing press may include the drying unit including the transport cylinder.
Substrate handling system comprising a robot cell and method for operating the same
A substrate handling system including an infeed system for feeding stacked substrates and including a processing machine for processing stacked substrates, and in particular a printing press for printing stacked substrates. A robot cell is provided between the infeed system and the processing machine. The robot cell comprises one or two gripper systems, each for handling a plurality of substrates. The robot cell is configured in such a way, that selectively differently stacked substrates, which are feedable by the infeed system, can be handled.
IMPROVING PRINTED OUTPUT OF DIGITAL PRINTING SYSTEMS BY REDUCTION OF UNPRINTED MARGINS OF THE SUBSTRATE
An impression station of a printing system comprises a rotatable impression cylinder with an impression cylinder gap housing a plurality of grippers recessed therein. A pressure cylinder assembly comprises a pressure cylinder comprising a pressure cylinder gap and an angle portion joining a trailing edge of the pressure cylinder gap and an outer circumferential surface of the pressure cylinder. A compressible blanket is disposed around the circumference of the pressure cylinder. A margin insert is interposed between the pressure cylinder and the compressible blanket at least at the angle portion, such that a local external geometry of the pressure cylinder assembly at the angle portion is changed by the presence of the margin insert. The change in the local external geometry of the pressure cylinder assembly due to the presence of the margin insert is effective to reduce a dimension of an unprinted leading-edge margin.
Improving printed output of digital printing systems by reduction of unprinted margins of the substrate
An impression station of a printing system comprises a rotatable impression cylinder with an impression cylinder gap housing a plurality of grippers recessed therein. A pressure cylinder assembly comprises a pressure cylinder comprising a pressure cylinder gap and an angle portion joining a trailing edge of the pressure cylinder gap and an outer circumferential surface of the pressure cylinder. A compressible blanket is disposed around the circumference of the pressure cylinder. A margin insert is interposed between the pressure cylinder and the compressible blanket at least at the angle portion, such that a local external geometry of the pressure cylinder assembly at the angle portion is changed by the presence of the margin insert. The change in the local external geometry of the pressure cylinder assembly due to the presence of the margin insert is effective to reduce a dimension of an unprinted leading-edge margin.
Improving printed output of digital printing systems by reduction of unprinted margins of the substrate
An impression station of a printing system comprises a rotatable impression cylinder with an impression cylinder gap housing a plurality of grippers recessed therein. A pressure cylinder assembly comprises a pressure cylinder comprising a pressure cylinder gap and an angle portion joining a trailing edge of the pressure cylinder gap and an outer circumferential surface of the pressure cylinder. A compressible blanket is disposed around the circumference of the pressure cylinder. A margin insert is interposed between the pressure cylinder and the compressible blanket at least at the angle portion, such that a local external geometry of the pressure cylinder assembly at the angle portion is changed by the presence of the margin insert. The change in the local external geometry of the pressure cylinder assembly due to the presence of the margin insert is effective to reduce a dimension of an unprinted leading-edge margin.
SUBSTRATE HANDLING SYSTEM COMPRISING A ROBOT CELL AND METHOD FOR OPERATING THE SAME
A substrate handling system including an infeed system for feeding stacked substrates and including a processing machine for processing stacked substrates, and in particular a printing press for printing stacked substrates. A robot cell is provided between the infeed system and the processing machine. The robot cell comprises one or two gripper systems, each for handling a plurality of substrates. The robot cell is configured in such a way, that selectively differently stacked substrates, which are feedable by the infeed system, can be handled.
SUBSTRATE HANDLING SYSTEM COMPRISING A ROBOT CELL AND METHOD FOR OPERATING THE SAME
A substrate handling system including an infeed system for feeding stacked substrates and including a processing machine for processing stacked substrates, and in particular a printing press for printing stacked substrates. A robot cell is provided between the infeed system and the processing machine. The robot cell comprises one or two gripper systems, each for handling a plurality of substrates. The robot cell is configured in such a way, that selectively differently stacked substrates, which are feedable by the infeed system, can be handled.
Machine arrangement for sequential processing of sheet-type substrates
A machine arrangement, for sequentially processing sheet-type substrates, includes a plurality of different processing stations, one of which includes a non-impact printing device that prints the substrates. The processing station, including the non-impact printing device, also includes a printing cylinder, on the circumference of which, the non-impact printing device that prints the substrates is arranged. On the circumferential surface of the printing cylinder, four substrates are or can be placed behind each other in the circumferential direction. Each of the substrates that are to be conveyed are retained in one of a force-locking and a form-fitting manner on the circumferential surface of the printing cylinder by at least one retaining element.
Machine arrangement for sequential processing of sheet-type substrates
A machine arrangement, for sequentially processing sheet-type substrates, includes a plurality of different processing stations, one of which includes a non-impact printing device that prints the substrates. The processing station, including the non-impact printing device, also includes a printing cylinder, on the circumference of which, the non-impact printing device that prints the substrates is arranged. On the circumferential surface of the printing cylinder, four substrates are or can be placed behind each other in the circumferential direction. Each of the substrates that are to be conveyed are retained in one of a force-locking and a form-fitting manner on the circumferential surface of the printing cylinder by at least one retaining element.