EP4221983B1 - Unité d'impression à feuilles se présentant sous la forme d'une unité de sérigraphie et comportant deux modules de base - Google Patents

Unité d'impression à feuilles se présentant sous la forme d'une unité de sérigraphie et comportant deux modules de base Download PDF

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Publication number
EP4221983B1
EP4221983B1 EP22709283.0A EP22709283A EP4221983B1 EP 4221983 B1 EP4221983 B1 EP 4221983B1 EP 22709283 A EP22709283 A EP 22709283A EP 4221983 B1 EP4221983 B1 EP 4221983B1
Authority
EP
European Patent Office
Prior art keywords
sheet
cylinder
printing unit
base module
screen printing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP22709283.0A
Other languages
German (de)
English (en)
Other versions
EP4221983A1 (fr
Inventor
Michael Müller
Martin Palme
Emmanuel THONY
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koenig and Bauer AG
Original Assignee
Koenig and Bauer AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Koenig and Bauer AG filed Critical Koenig and Bauer AG
Publication of EP4221983A1 publication Critical patent/EP4221983A1/fr
Application granted granted Critical
Publication of EP4221983B1 publication Critical patent/EP4221983B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F15/00—Screen printers
    • B41F15/08—Machines
    • B41F15/0804—Machines for printing sheets
    • B41F15/0809—Machines for printing sheets with cylindrical or belt-like screens
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F15/00—Screen printers
    • B41F15/08—Machines
    • B41F15/10—Machines for multicolour printing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F15/00—Screen printers
    • B41F15/08—Machines
    • B41F15/12—Machines with auxiliary equipment, e.g. for drying printed articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F15/00—Screen printers
    • B41F15/14—Details
    • B41F15/34—Screens, Frames; Holders therefor
    • B41F15/38—Screens, Frames; Holders therefor curved
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F21/00—Devices for conveying sheets through printing apparatus or machines
    • B41F21/04—Grippers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F21/00—Devices for conveying sheets through printing apparatus or machines
    • B41F21/10—Combinations of transfer drums and grippers
    • B41F21/102—Combinations of transfer drums and grippers with pneumatic means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F21/00—Devices for conveying sheets through printing apparatus or machines
    • B41F21/10—Combinations of transfer drums and grippers
    • B41F21/104—Gripper details

Definitions

  • the invention relates to a sheet-fed printing unit designed as a screen printing unit with two basic modules.
  • a sheet-fed printing unit in which a screen printing forme cylinder can be switched off from an impression cylinder by means of a switching device.
  • a sheet-fed printing unit with a screen printing form cylinder, impression cylinder and alignment cylinder is known, wherein a drying device is arranged aligned with a transport angle of the alignment cylinder.
  • An inspection device aligned with a roller is disclosed.
  • US 2018 / 0 215 136 A1 is a sheet-fed printing unit with screen printing form cylinder, impression cylinder, alignment cylinder and UV-LED drying device.
  • US 2011/ 0 017 081 A1 is a sheet-fed printing unit with a screen printing cylinder, an impression cylinder designed as an alignment cylinder and a UV drying device. Additional magnetic elements can be arranged on other cylinders.
  • EP 0 723 864 A1 a screen printing unit with a screen printing form cylinder and a counter-pressure cylinder is known, the fixing element of which for clamping sheets has an inner and an outer contact surface, this inner contact surface a distance from a rotation axis of the impression cylinder which corresponds to a base radius and wherein a cylinder barrel of the impression cylinder has a support surface for sheets which has at least one impression section with a constant barrel radius and wherein the barrel radius is greater than the base radius.
  • Each screen printing unit has an impression cylinder as well as a supply sheet transfer cylinder and a discharge sheet transfer cylinder.
  • the invention is based on the object of creating a sheet-fed printing unit designed as a screen printing unit with two basic modules.
  • the bale of the impression cylinder has a relatively large channel that takes up space on the circumference.
  • the circumference of the impression cylinder must therefore be designed to be correspondingly large. If the screen printing forme cylinder had an equally large effective circumference, the round screen arranged on it would become unstable under certain circumstances. Due to the ratio of the radii, a relatively small effective screen radius is possible. possible.
  • the sheet-fed printing unit is preferably characterized in that the screen printing unit has at least one further rotary transport body which, together with the impression cylinder, forms a transfer point, in particular for sheets, and that a fixing element of the at least one further rotary transport body, which is provided in particular for holding sheets, has an inner contact surface and an outer contact surface which are arranged to cooperate in clamping sheets, and that this inner contact surface is at least partially at a distance from a rotation axis of this further rotary transport body which corresponds to a base radius and that the effective screen radius is smaller than the base radius and that the effective screen radius is larger than half the base radius.
  • the effective screen radius of the screen printing form cylinder is also smaller than a base radius which is used for transport elements. This also offers the advantage that stable round screens can be used.
  • the sheet-fed printing unit is preferably characterized in that a fixing element of the impression cylinder, which is provided in particular for holding sheets, has an inner contact surface and an outer contact surface, which are arranged to cooperate in order to clamp sheets, and that this inner contact surface is at least partially at a distance from a rotation axis of the impression cylinder that corresponds to a base radius and that the bale radius is larger than the base radius.
  • the sheet-fed printing unit is preferably characterized in that the screen printing unit has a forme cylinder drive that drives the screen printing forme cylinder and is different from any drive by means of which the impression cylinder that interacts with the screen printing forme cylinder can be driven. This ensures that, despite the different circumferences of these two cylinders, they rotate at the same average angular speed. This is particularly successful if the impression cylinder has a smaller radius, at least in the area of a cylinder channel, than in the area of the cylinder barrel.
  • the sheet-fed printing unit is preferably characterized in that at least one further rotary transport body, which together with the impression cylinder forms a transfer point, in particular for sheets, is designed as a blowing drum arranged downstream of the impression cylinder along a transport path provided for transporting sheets, and/or that at least one further rotary transport body, which together with the impression cylinder forms a transfer point, in particular for sheets, is designed as a transfer drum arranged upstream of the impression cylinder along a transport path provided for transporting sheets.
  • This can preferably prevent smudging of a print image that has not yet dried.
  • a method for operating a sheet-fed printing unit designed as a screen printing unit is preferred, wherein during a sequence of several printing processes taking place one after the other and compensation processes in between, a counter-pressure section of a support surface of a cylinder barrel of a counter-pressure cylinder rotates continuously at a constant peripheral speed about its axis of rotation and wherein during this sequence of processes a screen printing form cylinder forming a screen printing point with the counter-pressure cylinder is periodically braked and accelerated.
  • a method for operating a sheet-fed printing unit designed as a screen printing unit wherein a screen printing station is formed by a screen printing forme cylinder and a counter-pressure cylinder cooperating therewith, in which sheets are printed one after the other, and wherein during a respective printing process, a respective sheet is printed while a counter-pressure section of a support surface of a cylinder barrel of the counter-pressure cylinder passes the screen printing station, and wherein a respective sheet is held at least during its printing process by means of at least one fixing element on the counter-pressure section of the support surface of the counter-pressure cylinder and passes the screen printing station at a first sheet speed while the counter-pressure cylinder rotates at a first angular speed, and wherein during the respective printing process of the respective sheet, the screen printing forme cylinder rotates about its axis of rotation at a second angular speed different from the first angular speed, and the part of the screen printing forme cylinder in contact with the respective sheet rotates about this axis of rotation of the screen printing forme cylinder
  • the method is preferably characterized in that over a respective complete process cycle, the from the start of one printing process to the start of the next printing process, an average angular velocity of the screen printing forme cylinder is equal to an average angular velocity of the cooperating counter-pressure cylinder and that over the same respective complete process cycle an average peripheral speed of the screen printing forme cylinder is smaller than an average peripheral speed of the cooperating counter-pressure cylinder.
  • the sheet-fed printing unit is preferably characterized in that the sheets are transferred, in particular indirectly, to a subsequent rotary transport body of the sheet-fed printing unit after their respective printing process and are then transported in a transport process at the first angular speed around the rotation axis of this subsequent rotary transport body and that a peripheral speed with which the sheets are transported around this rotation axis during the respective transport process is equal to a second sheet speed that is lower than the first sheet speed.
  • This also enables the use of the enlarged bale radius to avoid damage to the round screen while at the same time ensuring a transfer through the entire screen printing unit with minimal errors or as safe as possible.
  • the sheet-fed printing unit which is designed as a screen printing unit and has at least one screen printing form cylinder and at least one counter-pressure cylinder cooperating therewith, preferably has at least one further rotary transport body, wherein preferably a fixing member of the counter-pressure cylinder, which is provided in particular for holding sheets, has an inner contact surface and an outer contact surface, which are arranged to cooperate for clamping sheets, and wherein this inner contact surface is at least partially at a distance from a rotation axis of the counter-pressure cylinder which corresponds to a base radius and wherein preferably a cylinder barrel of the impression cylinder has a support surface for sheets, which has at least one impression section with a constant barrel radius, which extends over an angle of at least 170° around the axis of rotation of the impression cylinder and wherein preferably the barrel radius is larger than the base radius and wherein preferably a fixing member of the at least one further rotary transport body, which is provided in particular for holding sheets, has an inner contact surface and an outer contact surface, which are arranged
  • the sheet-fed printing unit is preferably characterized in that the further rotary transport body is designed as an alignment cylinder, which has a plurality of elements in the area of its outer circumference that create a magnetic field.
  • a printing ink with magnetically alignable particles can then be printed onto the sheet and an alignment of correspondingly precisely selectable parts of this printing ink can be achieved in register by means of the alignment cylinder.
  • the sheet-fed printing unit is preferably characterized in that a blowing drum is arranged to form a transfer point with the impression cylinder and another transfer point with the alignment cylinder. This offers the advantage that the sheet can be transported between the impression cylinder and the alignment cylinder without smearing.
  • the sheet-fed printing unit is preferably characterized in that a fixing element of the at least one blowing drum, which is provided in particular for holding sheets, has an inner contact surface and an outer contact surface, which are arranged to cooperate in clamping sheets, and this inner contact surface is at least partially at a distance from a rotation axis of this blowing drum that corresponds to the base radius and/or that at least one sheet guiding device and at least one sheet blowing device are assigned to the blowing drum and the at least one sheet guiding device has at least one inner surface, the shape of which corresponds to a section of a cylinder jacket, the axis of which is identical to the rotation axis of the blowing drum and this inner surface is arranged at a distance from the rotation axis of the blowing drum that is greater than the base radius and/or that the at least one sheet blowing device serves to generate a gas flow directed from the inside against the inner surface of this sheet guiding device.
  • the transfer from the impression cylinder to the alignment cylinder can then take place particularly precisely
  • the sheet-fed printing unit is preferably characterized in that at least one pre-alignment device is arranged in the area of the blowing drum, in particular in a stationary manner, which is part of a respective alignment device and which has at least one electromagnet and/or permanent magnet.
  • the sheet transport can take place relatively quickly or over relatively short distances, because the pre-alignment shortens the necessary processes on the alignment cylinder.
  • the sheet-fed printing unit is preferably characterized in that the screen printing forme cylinder has an effective screen radius and that the effective screen radius is smaller than the bale radius and smaller than the base radius and in particular that the effective screen radius is greater than half the bale radius and greater than half the base radius.
  • the sheet-fed printing unit is preferably characterized in that a stationary frame of the screen printing unit has two frame side walls and that the screen printing unit has at least one stationary base module which has two base side walls which are arranged opposite one another and that four installation areas for rotary transport bodies are defined by the base module and that the impression cylinder is arranged in one of these four installation areas and that the at least one further rotary transport body is arranged in one of these four installation areas.
  • the arrangement of such a base module enables a cost-effective and easily expandable screen printing unit.
  • the sheet-fed printing unit is preferably characterized in that a passage plane of the base module is defined as the plane which completely contains both a rotation axis of the first rotary transport body of this base module and a rotation axis of a fourth rotary transport body of this respective base module and that the passage plane has a normal vector which extends in the vertical direction.
  • the sheet-fed printing unit designed as a screen printing unit which has at least one screen printing form cylinder that forms a screen printing point with an impression cylinder
  • at least one alignment cylinder is arranged after the impression cylinder along a transport path provided for transporting sheets, which has a plurality of elements in the region of its outer circumference that create a magnetic field
  • a transport angle of the alignment cylinder is the angular range around the axis of rotation of the alignment cylinder in which sheets are transported by means of the alignment cylinder
  • at least one drying device is arranged aligned with the transport angle of the alignment cylinder and wherein, viewed in the direction of rotation, after the at least one drying device, at least one inspection device is arranged aligned with the transport angle of the alignment cylinder.
  • the sheet-fed printing unit is preferably characterized in that the impression cylinder forms a transfer point with a rotary transport body and that this rotary transport body forms a further transfer point with the alignment cylinder.
  • this rotary transport body is designed as a blowing drum.
  • a transport angle of the blowing drum is the angle range around the axis of rotation of the Blow drum is in which sheets are transported by means of the blow drum and a pre-alignment device is arranged in the area of the transport angle of the blow drum, which has at least one element that creates a magnetic field.
  • the blow drum in turn allows lubrication-free transport and the pre-alignment allows high precision and at the same time high productivity.
  • the sheet-fed printing unit is preferably characterized in that at least one stationary outer magnet device is arranged, which is assigned to the alignment cylinder, and in that the outer magnet device extends over an angle of action around the assigned alignment cylinder, and in that the outer magnet device is arranged in front of the at least one drying device, as seen in the direction of rotation, aligned with the transport angle of the alignment cylinder. This allows, for example, an even more precise alignment of the particles.
  • the sheet-fed printing unit is preferably characterized in that, viewed in the direction of rotation, a darkening device is arranged between the at least one drying device and the at least one inspection device.
  • a darkening device is arranged between the at least one drying device and the at least one inspection device. This preferably serves to prevent radiation emanating from the drying device as far as possible from reaching any sensor device of the inspection device.
  • the at least one inspection device is designed as a reflection inspection device and/or has at least one radiation source, in particular a light source.
  • the sheet-fed printing unit is preferably characterized in that a stationary frame of the screen printing unit has two frame side walls and that the screen printing unit has at least one stationary base module which has two base side walls which are arranged opposite one another and that four installation areas for rotary transport bodies are defined by the base module and that each rotary transport body of the base module is assigned a respective transport angle and that a transport angle of the first rotary transport body of the base module is at least 190° and at most 220° and that a transport angle of the second rotary transport body is at least 220° and at most 270° and that a transport angle of the third rotary transport body is at least 220° and at most 270° and that a transport angle of the fourth rotary transport body of the base module is more than 100° and less than 150°.
  • the at least one drying device is designed as a radiation dryer and/or as a UV dryer and/or as an LED dryer and/or as a UV-LED dryer.
  • the sheet-fed printing unit is preferably characterized in that a delivery device is arranged along the transport path provided for the transport of sheets after the sheet-fed printing unit and that at least one further drying device and/or curing device is arranged along a section of the transport path provided for the transport of sheets defined by the delivery device.
  • a relatively short exposure time for the drying on the alignment cylinder can then also be accepted because smearing is prevented.
  • drying device and curing device should be understood as synonymous in the above and below.
  • the screen printing unit has at least one screen printing form cylinder and at least one counter-pressure cylinder cooperating therewith, wherein more preferably the screen printing form cylinder is assigned an effective screen radius and the counter-pressure cylinder is assigned a bale radius.
  • the screen printing unit has at least one, in particular stationary, frame which has at least two, in particular stationary, frame side walls which face each other in a transverse direction are arranged opposite each other.
  • the screen printing unit preferably has at least one, in particular first, base module, which has two one-piece and stationary base side walls, each of which is part of a respective frame side wall.
  • the base side walls preferably each have a load-bearing wall and more preferably at least one reinforcement. These two load-bearing walls preferably each define one of two inner wall planes, by which a clear width W of the respective base module is more preferably defined.
  • the respective base module preferably has at least four and more preferably exactly four installation areas for rotary transport bodies, to which respective recesses in the load-bearing walls of the base side walls are assigned.
  • a respective rotary transport body is preferably arranged in each of the at least four installation areas.
  • the first installation area along a transport path provided for transporting sheets and the second installation area of the respective base module along this transport path form a selection group.
  • the rotary transport body arranged in the first installation area is assigned a first rotation axis.
  • the rotary transport body arranged in the second installation area is assigned a second rotation axis.
  • a rotary transport body designed as a counter-pressure cylinder is arranged in one of the two installation areas of the selection group, which is arranged to cooperate, for example, with two other rotary transport bodies and with a screen printing forme cylinder.
  • a rotary transport body is arranged in the other of the two installation areas of the selection group, which is out of contact with any screen printing forme cylinder.
  • a first screen axis is a straight line that is oriented parallel to the transverse direction and that is a first distance from the first axis of rotation and a second distance from the second axis of rotation.
  • the first distance preferably corresponds to the sum of the effective screen radius and the bale radius.
  • the second distance is preferably greater than the sum of the effective screen radius and the bale radius.
  • the second distance is preferably greater than 2.5 times the bale radius.
  • the second distance is preferably less than 3.5 times and more preferably than 3 times the bale radius.
  • the first screen axis is a possible position of a rotation axis of a screen printing forme cylinder.
  • a second screen axis is a straight line that is oriented parallel to the transverse direction A and that is the second distance from the first axis of rotation and that is the first distance from the second axis of rotation.
  • the second screen axis is an alternative possible position of a rotation axis of a screen printing forme cylinder.
  • the first sieve axis and the second sieve axis have a third distance from each other which is greater than 3 times and preferably 3.5 times the bale radius.
  • a first sieve axis region includes at least the first sieve axis.
  • the first sieve axis region has either no intersection with a base side wall or only such intersections with one or both base side walls that are at least 2 cm, more preferably at least 5 cm, even more preferably at least 10 cm and even more preferably at least 20 cm outside the spatial area delimited by the two inner wall planes.
  • a second sieve axis region includes at least the second sieve axis.
  • the second sieve axis region has either no intersection with a base side wall or only such intersections with one or both base side walls that are at least 2 cm, more preferably at least 5 cm, even more preferably at least 10 cm and even more preferably at least 20 cm outside the spatial area delimited by the two inner wall planes.
  • the base module can be equipped with either an upper or a lower screen printing cylinder, meaning it can be designed for printing on either the front or the back.
  • the base side walls can still be manufactured the same. This reduces Costs and shortens the production time of the printing press or reduces the number of frames required for fast production and delivery.
  • the screen printing unit is preferably characterized in that the first screen axis region extends from the first screen axis in each direction orthogonal to the transverse direction over at least 1 cm, more preferably at least 2 cm, even more preferably at least 5 cm and even more preferably at least 10 cm and/or that the second screen axis region extends from the second screen axis in each direction orthogonal to the transverse direction over at least 1 cm, more preferably at least 2 cm, even more preferably at least 5 cm and even more preferably at least 10 cm.
  • This allows the installation of correspondingly large devices such as doctor blade devices and/or forme cylinder drives.
  • the screen printing unit is preferably characterized in that a screen printing form cylinder is arranged in one screen axis area of this respective basic module and no screen printing form cylinder is arranged in the other screen axis area of this respective basic module.
  • the rotation axes of the installation areas can still remain standardized because no counter-pressure cylinders are in direct contact with one another, but preferably only counter-pressure cylinders with transfer drums and/or suction drums and/or blowing drums.
  • the screen printing unit is preferably characterized in that each screen axis area is arranged completely after an input transfer point with respect to a transport direction orthogonal to the transverse direction. This facilitates the combination of several basic modules.
  • the screen printing unit is preferably characterized in that one of the screen axis areas of the respective basic module is arranged with at least one doctor blade adjusting device which is arranged outside the spatial area delimited by the two inner wall planes.
  • the screen printing unit is preferably characterized in that the at least one doctor blade adjusting device is arranged on a sub-frame which is pivotably arranged on the base side walls of this base module.
  • the sub-frame is preferably arranged within the spatial area delimited by the two inner wall planes.
  • the sub-frame is preferably arranged to support the screen printing forme cylinder via a forme cylinder bearing.
  • the sub-frame serves as a holder for the screen printing forme cylinder installed in each case and the other components required for its operation.
  • the sub-frame can preferably be switched off and thus makes it easier, for example, to change the screen.
  • the screen printing unit preferably has at least one screen printing form cylinder and at least one counter-pressure cylinder that interacts with it.
  • the screen printing unit preferably has at least one, in particular stationary, frame that has at least two, in particular stationary, frame side walls that are arranged opposite one another in a transverse direction.
  • the screen printing unit preferably has at least one, in particular first, base module that has two one-piece and stationary base side walls that are each part of a respective frame side wall.
  • the base side walls preferably each have a load-bearing wall and more preferably at least one reinforcement.
  • the screen printing unit is preferably characterized in that it has at least one first base module and at least one second base module, each base module having two one-piece and stationary base side walls, which are each part of a respective frame side wall.
  • the respective base module has four installation areas for rotary transport bodies, which are further preferably assigned respective recesses in the supporting walls of the base side walls.
  • the relative position of the four installation areas of the first base module to one another preferably corresponds to the relative position of the four installation areas of the second base module to one another.
  • the respective first installation area along a transport path provided for transporting sheets and the respective second installation area of the respective base module along this transport path preferably form a respective selection group of the respective base module.
  • An impression cylinder that interacts with a screen printing forme cylinder is preferably arranged in exactly one of the installation areas of the selection group of the first base module.
  • a respective rotary transport body is preferably arranged in each of the at least four installation areas of the two base modules. This allows a screen printing unit to be constructed from several base modules and thus reduced costs and a shortened production time for the printing press or a reduced number of frames to be kept on hand for fast production and delivery.
  • the screen printing unit is preferably characterized in that in at least one installation area of the first base module a functionally different rotary transport body is arranged than in an installation area of the second base module that corresponds in terms of its installation position. This allows an adaptable structure of the screen printing unit despite the lower costs.
  • the sheet-fed printing unit is then characterized in that in a first installation area of the first base module along this transport path a functionally different rotary transport body is arranged than in a first installation area of the second base module along this transport path and/or in a second installation area of the first base module along this transport path a functionally different rotary transport body is arranged than in a second installation area of the second base module along this transport path and/or in a third installation area of the first base module along this transport path a functionally different rotary transport body is arranged than in a third installation area of the second base module along this transport path and/or in a a functionally different rotary transport body is arranged in the fourth installation area of the first base module along this transport path than in a fourth installation area of the second base module along this transport path.
  • the screen printing unit is preferably characterized in that an impression cylinder that interacts with a screen printing forme cylinder is arranged in exactly one of the installation areas of the selection group of the second base module.
  • the screen printing unit is preferably characterized in that the impression cylinder arranged in the first base module is arranged in a first installation area of the first base module and the impression cylinder arranged in the second base module is arranged in a first installation area of the second base module.
  • the screen printing unit is preferably characterized in that the impression cylinder arranged in the first base module is arranged in a first installation area of the first base module and the impression cylinder arranged in the second base module is arranged in a second installation area of the second base module.
  • the screen printing unit is preferably characterized in that an alignment cylinder is arranged in an installation area of the first base module, which has a plurality of elements that create a magnetic field in the area of its outer circumference and/or in that an alignment cylinder is arranged in an installation area of the second base module, which has a plurality of elements that create a magnetic field in the area of its outer circumference.
  • the screen printing unit is preferably characterized in that a blowing drum is arranged in an installation area of the first base module and/or in that a blowing drum is arranged in an installation area of the second base module.
  • a sheet-fed printing press 01 is preferably designed as a security printing press 01.
  • the sheet-fed printing press 01 is preferably designed as a sheet-fed rotary printing press 01.
  • the sheet-fed printing press 01 preferably has at least one sheet processing unit 200; 500; 600; 700.
  • the at least one sheet processing unit 200; 500; 600; 700 is designed, for example, as a sheet-fed printing unit 200; 500; 600; 700.
  • different printing methods are possible.
  • the sheet-fed printing press 01 is used to print substrate 02, in particular in the form of sheets 02.
  • the sheets 02 are made, for example, from cellulose- or preferably cotton-fiber-based paper, from plastic polymer or from a hybrid product thereof.
  • the sheets 02 can be uncoated or already coated before processing by the sheet-fed printing press 01.
  • the sheets 02 can be unprinted or already printed once or multiple times or otherwise mechanically processed.
  • On a sheet 02 preferably several blanks, in particular printed images of banknotes to be produced, are arranged next to one another in a row and several such rows of blanks or their printed image are arranged one behind the other in the transport direction T or are arranged accordingly in the course of processing the respective sheet 02.
  • the sheet-fed printing machine 01 preferably has at least one substrate feed device 100 or sheet feed device 100, in particular designed as a sheet feeder 100, in particular in addition to the at least one sheet processing unit 200; 500; 600; 700 and/or along a transport path provided for transporting sheets 02 in front of the at least one and more preferably in front of each sheet processing unit 200; 500; 600; 700.
  • the at least one substrate feed device 100 preferably has a conveyor line 101, for example designed as a belt table 101.
  • at least one receiving device preferably designed as a stacking plate, is arranged. Printing material bundles designed as sheet stacks can then be arranged on this for separation.
  • the The receiving device is preferably connected to at least one transport means, which ensures that the topmost sheet 02 of the sheet stack is arranged in a defined position, even when the sheet stack is being processed.
  • the substrate feed device 100 preferably comprises sheet separating elements and sheet transport elements.
  • the sheet separating elements are designed, for example, as separating suction cups.
  • the sheet transport elements are designed, for example, as transport suction cups.
  • At least one front stop is preferably arranged.
  • the substrate feed device 100 has at least one non-stop device for an uninterrupted supply of sheets 02 even when a subsequent stack is arranged.
  • the belt table arranged downstream of the sheet stack is designed, for example, as a suction belt table.
  • At least one system device referred to as a sheet system is arranged, which preferably has a feed table and at least one movable front stop.
  • the sheet feeder 100 preferably has at least one oscillating gripper 103 or oscillator 103.
  • a receiving drum 104 is preferably arranged along the transport path provided for the transport of sheets 02 after the oscillating gripper 103. Sheets 02 are preferably transferred from the oscillating gripper 103 to the receiving drum 104.
  • the receiving drum 104 is a rotary transport body 104.
  • the sheet-fed printing press 01 preferably has at least one unit 900 designed as a delivery device 900, in particular a sheet delivery 900, in particular in addition to the at least one sheet processing unit 200; 500; 600; 700 and/or along the transport path provided for the transport of sheets 02 after the at least one sheet feeder 100 and more preferably after each sheet processing unit 200; 500; 600; 700.
  • the sheet delivery 900 preferably contains at least one sheet conveyor system 904, which is designed in particular as a chain conveyor system 904 or chain gripper system 904.
  • the sheet conveyor system 904 contains, for example, traction means moved via drive and deflection means, which drive gripping devices for conveying the sheets.
  • the gripping devices have fixing elements for Acceptance and fixing of the sheets 02.
  • the sheets 02 are preferably deposited on at least one or more preferably one of several transport supports - for example designed as a pallet or of another type - in the form of a respective delivery stack.
  • a sheet guiding device and/or a drying and/or curing device 906 is arranged in the sheet delivery 900.
  • the sheets 02 which are preferably decelerated by a braking device, come into contact with front stops and are thus deposited in an aligned manner on the respective delivery stack.
  • the sheet delivery 900 is equipped with a non-stop device for uninterrupted removal of delivery stacks.
  • the delivery device 900 has at least two, more preferably at least three, delivery stations 901; 902; 903 arranged one behind the other along the transport path provided for the transport of the substrate 02 and/or the sheets 02.
  • the at least one delivery device 900 is therefore preferably designed as a multiple stack delivery device 900, in particular at least as a double stack delivery device 900 or at least as a triple stack delivery device 900 or at least as a quadruple stack delivery device 900.
  • the delivery stations 901; 902; 903 are also called stack delivery devices 901; 902; 903.
  • a respective delivery station 901; 902; 903 or stack delivery device 901; 902; 903 is to be understood in particular as a device that serves to form a respective stack.
  • the transport path provided for the transport of, in particular, at least partially separated sheets 02 preferably begins at the substrate feed device 100 and/or preferably ends at the sheet delivery 900. Stacks comprising several sheets 02 are preferably fed to the substrate feed device 100 and/or removed from the sheet delivery 900. The transport path of these stacks should not be used for the Transport of sheets 02 can be counted.
  • at least one full-sheet control device 773 is arranged along the transport path provided for the transport of sheets 02. This serves in particular to detect an arrival at the expected time and/or an expected shape of side edges of the sheets 02.
  • the full-sheet control device 773 has, for example, at least one source for electromagnetic radiation, in particular visible light, and a sensor for electromagnetic radiation, in particular visible light.
  • a transport direction T is preferably the direction T that runs tangentially to a section and/or point of the intended transport path that is closest to a respective reference point and is intended for the transport of the substrate 02 and/or sheet 02 at this section and/or point.
  • This respective reference point is preferably located at the point and/or on the component that is related to the transport direction T.
  • the transport direction T therefore preferably extends along the transport path provided for the substrate 02 and/or sheet 02.
  • a transverse direction A is preferably a direction A that extends orthogonally to the transport direction T and horizontally.
  • the sheet-fed printing press 01 preferably has at least one sheet processing unit 200; 500; 600; 700.
  • the sheet-fed printing press 01 has at least two or more sheet processing units 200; 500; 600; 700.
  • the at least one sheet processing unit 200; 500; 600; 700 is preferably also designed as a sheet-fed printing unit 200; 500; 600; 700.
  • a sheet-fed printing unit 200; 500; 600; 700 should also be understood to generally mean a sheet coating unit 200; 500; 600; 700, and in particular also a sheet varnishing unit 200; 500; 600; 700.
  • the sheet-fed printing press 01 has, for example, a plurality of printing units 200; 500; 600; 700, which are assigned to different printing processes.
  • the sheet-fed printing machine 01 preferably has at least one sheet-fed printing unit 700 designed as a screen printing unit 700.
  • the screen printing process enables a particularly thick layer to be applied.
  • the screen printing unit 700 is used in particular to generate optically variable image elements, in particular security elements, on the sheet 02.
  • the screen printing unit 700 preferably has at least one impression cylinder 708 and a screen printing form cylinder 752 that interacts with it. The two together form a respective screen printing point 758.
  • at least one optically variable coating agent is used, in particular at least one optically variable printing ink and/or at least one optically variable varnish. This optically variable coating agent is applied, for example, over the entire surface or preferably in partial areas in the form of first printed image elements.
  • the screen printing device 700 preferably has at least one alignment device 771 for aligning particles contained in the optically variable coating agent applied to the respective sheet 02 and responsible for the optical variability.
  • the particles responsible for the optical variability are preferably magnetic or magnetizable, non-spherical particles, e.g. pigment particles, also referred to here as magnetic particles or flakes, contained in the respective coating agent, in particular in the printing ink or in the varnish.
  • the at least one alignment device 771 preferably has several components.
  • the screen printing unit 700 preferably has at least one alignment cylinder 709. This at least one alignment cylinder 709 is preferably part of a respective alignment device 771.
  • the screen printing device 700 preferably has at least one pre-alignment device 767. This at least one pre-alignment device 767 is preferably part of a respective alignment device 771.
  • the screen printing device 700 preferably has at least one drying device 772
  • the term drying device 772 also includes a curing device 772.
  • the at least one respective drying device 772 can be viewed as a component of a respective alignment device 771, in particular since it serves to fix the alignment.
  • the at least one drying device 772 is preferably arranged on the transport path provided for the transport of sheets 02 behind or more preferably in the region of the alignment cylinder 709.
  • the at least one drying device 772 is preferably designed as a narrow-band radiation dryer 772, for example as a UV dryer 772, in particular an LED dryer 772, more preferably a UV-LED dryer 772.
  • the drying device 772 preferably operates in a narrow-band wavelength range that promotes hardening, e.g. in a wavelength band with a spectral half-width related to the radiation power of at most 50 nm, preferably at most 30 nm.
  • the radiation maximum is preferably at a wavelength of 385 ⁇ 25 nm, in particular 385 ⁇ 15 nm.
  • the screen printing unit 700 preferably has a particularly stationary frame 701, which has at least two particularly stationary frame side walls 702; 703.
  • the screen printing unit 700 can be configured in different embodiments.
  • This Embodiments preferably have in common that the respective screen printing unit 700 each has at least one base module 704, which is arranged in a particularly stationary manner.
  • the respective base module 704 has two base side walls 706; 707, which are arranged in a particularly stationary manner and are arranged opposite one another, in particular opposite one another in the transverse direction A.
  • Each base side wall 706; 707 is preferably formed in one piece, for example cast. These base side walls 706; 707 are also part of the particularly stationary frame 701 of the screen printing unit 700.
  • base side walls 706; 707 are preferably each part of a respective frame side wall 702; 703.
  • the frame side walls 702; 703 of the screen printing unit 700 are arranged opposite one another, in particular opposite one another in the transverse direction A.
  • the frame side walls 702; 703 are connected to one another in a particularly rigid manner via at least one particularly stationary cross member 723.
  • the base side walls 706; 707 are connected to one another in a particularly rigid manner via at least one particularly stationary cross member 723.
  • the respective base module 704 defines four installation areas 726; 727; 728; 729 for rotary transport bodies 708; 709; 711; 712; 713; 714.
  • a rotary transport body 708; 709; 711; 712; 713; 714 is understood to be an assembly 708; 709; 711; 712; 713; 714 which is arranged to be rotatable about a respective rotation axis 716; 717; 718; 719; 721; 722 and serves to transport sheets 02.
  • rotary transport bodies 708; 709; 711; 712; 713; 714 are impression cylinders 708, alignment cylinders 709, transfer drums 711, blowing drums 712, suction drums 713 and sprocket shafts 714.
  • a rotary transport body 102 is a receiving drum 102.
  • the receiving drum 102 is preferably part of the sheet feed device 100.
  • all rotary transport bodies 708; 709; 711; 712; 713; 714 of the respective base module 704 and more preferably all rotary transport bodies 708; 709; 711; 712; 713; 714 of the screen printing unit 700 have a single circumference, i.e. are Recording of a sheet 02 in circumference.
  • the four installation areas 726; 727; 728; 729 are preferably arranged such that they and/or the rotary transport bodies 708; 709; 711; 712; 713; 714 arranged therein jointly define a section of the transport path provided for the transport of sheets 02 that is assigned to the respective base module 704.
  • the first installation area 726 of the respective base module 704 is referred to as the first installation area 726 along the transport path provided for the transport of sheets 02.
  • the first rotary transport body 708; 709; 711; 712; 713; 714 of the respective base module 704 is referred to as the rotary transport body 708; 709; 711; 712; 713; 714 that is arranged in the first installation area 726.
  • the second installation area 727 as seen along the transport path provided for the transport of sheets 02, is referred to as the second installation area 727 of the respective base module 704.
  • the rotational transport body 708; 709; 711; 712; 713; 714 that is arranged in the second installation area 727 is referred to as the second rotational transport body 708; 709; 711; 712; 713; 714 of the respective base module 704.
  • the third installation area 728 of the respective base module 704 is referred to as the third installation area 728, as seen along the transport path provided for the transport of sheets 02.
  • the third rotational transport body 708; 709; 711; 712; 713; 714 of the respective base module 704 is referred to as the third rotational transport body 708; 709; 711; 712; 713; 714, which is arranged in the third installation area 728.
  • the fourth installation area 729 of the respective base module 704 is the fourth installation area 729, as seen along the transport path provided for the transport of sheets 02.
  • the fourth rotation transport body 708; 709; 711; 712; 713; 714 of the respective base module 704 is the rotation transport body 708; 709; 711; 712; 713; 714, which is arranged in the fourth installation area 729.
  • a passage plane E of the respective base module 704 is defined as the plane E which contains both the rotation axis 716; 717; 718; 719; 721; 722 of the first Rotational transport body 708; 709; 711; 712; 713; 714 of this respective base module 704 as well as the rotation axis 716; 717; 718; 719; 721; 722 of the fourth rotational transport body 708; 709; 711; 712; 713; 714 of this respective base module 704.
  • This passage plane E divides the space into two half spaces.
  • the rotation axis 716; 717; 718; 719; 721; 722 of the second rotational transport body 708; 709; 711; 712; 713; 714 of this respective base module 704 is arranged completely in one of these two half spaces and is the rotation axis 716; 717; 718; 719; 721; 722 of the third rotation transport body 708; 709; 711; 712; 713; 714 of this respective base module 704 is arranged completely in the other of these two half-spaces.
  • the passage plane E preferably has a normal vector N which deviates from a vertical direction V by at most 45°, more preferably by at most 20°, even more preferably by at most 10°.
  • the normal vector N extends in the vertical direction V.
  • the rotation axis 716; 717; 718; 719; 721; 722 of the second rotation transport body 708; 709; 711; 712; 713; 714 is arranged further down than the rotation axis 716; 717; 718; 719; 721; 722 of the third rotation transport body 708; 709; 711; 712; 713; 714 and more preferably also further down than the rotation axis 716; 717; 718; 719; 721; 722 of the first rotation transport body 708; 709; 711; 712; 713; 714 and the rotation axis 716; 717; 718; 719; 721; 722 of the fourth rotation transport body 708; 709; 711; 712; 713; 714.
  • the rotation axis 716; 717; 718; 719; 721; 722 of the third rotation transport body 708; 709; 711; 712; 713; 714 arranged further up than the rotation axis 716; 717; 718; 719; 721; 722 of the second rotation transport body 708; 709; 711; 712; 713; 714 and more preferably also further up than the rotation axis 716; 717; 718; 719; 721; 722 of the first rotation transport body 708; 709; 711; 712; 713; 714 and the rotation axis 716; 717; 718; 719; 721; 722 of the fourth rotation transport body 708; 709; 711; 712; 713; 714.
  • each rotation transport body 708; 709; 711; 712; 713; 714 of the respective base module 704 is assigned a respective transport angle W726; W727; W728; W729.
  • a transport angle W726; W727; W728; W729 is understood to mean the angular range around the respective rotation axis 716; 717; 718; 719; 721; 722 of the respective rotary transport body 708; 709; 711; 712; 713; 714 in which sheets 02 are transported by means of this rotary transport body 708; 709; 711; 712; 713; 714 and in particular are held by it.
  • the transport path provided for the transport of sheet 02 has a curvature in those areas in which transport takes place by means of rotary transport bodies 708; 709; 711; 712; 713; 714.
  • rotary transport bodies 708; 709; 711; 712; 713; 714 When the sheet is transferred from one rotary transport body 708; 709; 711; 712; 713; 714 to the next rotary transport body 708; 709; 711; 712; 713; 714, the direction of the curvature usually changes.
  • the radius of the curvature corresponds, for example, to the distance between the rotation axis 716; 717; 718; 719; 721; 722 of the respective rotary transport body 708; 709; 711; 712; 713; 714 on the one hand and an inner contact surface 748 of the respective fixing element of the respective rotary transport body 708; 709; 711; 712; 713; 714 on the other hand.
  • the fixing elements are preferably designed as grippers, in particular for gripping the leading edges of the sheets.
  • the grippers are designed as clamping grippers and/or as suction grippers.
  • An inner contact surface 748 is to be understood as the contact surface 784 on which the sheet 02 rests and is held.
  • Respective transfer points 731; 732; 733; 734; 736 serve to transfer sheets 02 from a rotary transport body 708; 709; 711; 712; 713; 714 to a next rotary transport body 708; 709; 711; 712; 713; 714.
  • the respective transfer point 731; 732; 733; 734; 736 is designed, for example, as a line extending in the transverse direction A.
  • the transfer points 731; 732; 733; 734; 736 are those points at which the direction of curvature of the sheet 02 provided for the transport of transport route reverses.
  • the respective base module 704 preferably has an input transfer point 731. At the input transfer point 731, for example, sheets 02 coming from outside are transferred to the first rotary transport body 708; 709; 711; 712; 713; 714 of the base module 704.
  • the input transfer point 731 is an interface 731 to a section of the transport path provided for the transport of sheets 02, preceding the respective base module 704.
  • the base module 704 preferably has three internal transfer points 732; 733; 734.
  • a first internal transfer point 732 is preferably the transfer point 732 which is formed by the first rotary transport body 708; 709; 711; 712; 713; 714 and the second rotary transport body 708; 709; 711; 712; 713; 714 is defined jointly.
  • a second internal transfer point 733 is preferably the transfer point 733 which is defined jointly by the second rotary transport body 708; 709; 711; 712; 713; 714 and the third rotary transport body 708; 709; 711; 712; 713; 714.
  • a third internal transfer point 734 is preferably the transfer point 734 which is defined jointly by the third rotary transport body 708; 709; 711; 712; 713; 714 and the fourth rotary transport body 708; 709; 711; 712; 713; 714.
  • the respective base module 704 has, for example, at least one output transfer point 736.
  • sheets 02 are transferred to the outside from the fourth rotary transport body 708; 709; 711; 712; 713; 714 of the base module 704.
  • the input transfer point 736 is an interface 736 to a section of the transport path provided for the transport of sheets 02 following the respective base module 704.
  • the fourth rotary transport body 708; 709; 711; 712; 713; 714 of the base module 704 is designed as a chain wheel shaft 714, no such output transfer point 736 is specified.
  • the sheets 02 are then transported away by means of the corresponding chain conveyor system 904 or chain gripper system 904, which preferably passes into the sheet delivery 900.
  • a transport angle W726 of the first rotary transport body 708; 709; 711; 712; 713; 714 or of the first installation area 726 of the respective base module 704 is more than 180°.
  • the transport angle 726 of this first rotary transport body 708; 709; 711; 712; 713; 714 or of this first installation area 726 is at least 190°, even more preferably at least 195°.
  • the transport angle W726 of this first rotary transport body 708; 709; 711; 712; 713; 714 is at most 240°, more preferably at most 220°, even more preferably at most 205° and even more preferably at most 201°.
  • a transport angle W727 of the second rotary transport body 708; 709; 711; 712; 713; 714 or of this second installation region 727 of the respective base module 704 is more than 180°.
  • the transport angle W727 of this second rotary transport body 708; 709; 711; 712; 713; 714 or of this second installation region 727 is at least 200°, even more preferably at least 220° and even more preferably at least 240°.
  • the transport angle W727 of this second rotary transport body 708; 709; 711; 712; 713; 714 or this second installation area 727 is at most 300°, more preferably at most 270°, even more preferably at most 250° and even more preferably at most 245°.
  • a transport angle W728 of the third rotary transport body 708; 709; 711; 712; 713; 714 or of the third installation region 728 of the respective base module 704 is more than 180°.
  • the transport angle W728 of this third rotary transport body 708; 709; 711; 712; 713; 714 or of this third installation region 728 is at least 200°, even more preferably at least 220° and even more preferably at least 240°.
  • the transport angle W728 of this third rotary transport body 708; 709; 711; 712; 713; 714 or this third installation area 728 is at most 300°, more preferably at most 270°, even more preferably at most 250° and even more preferably at most 245°.
  • the Transport angle W728 of this third rotary transport body 708; 709; 711; 712; 713; 714 or of this third installation area 728 is just as large as the transport angle W727 of the second rotary transport body 708; 709; 711; 712; 713; 714 or of the second installation area 727.
  • a transport angle W729 of the fourth rotary transport body 708; 709; 711; 712; 713; 714 or of the fourth installation area 729 of the respective base module 704 is more than 180°.
  • the transport angle W729 of this fourth rotary transport body 708; 709; 711; 712; 713; 714 or of this fourth installation area 729 is at least 190°, even more preferably at least 195°.
  • the transport angle W729 of this fourth rotary transport body 708; 709; 711; 712; 713; 714 or of this fourth installation area 729 is at most 240°, more preferably at most 220°, even more preferably at most 205° and even more preferably at most 201°.
  • the transport angle W729 of this fourth rotary transport body 708; 709; 711; 712; 713; 714 or of this fourth installation region 729 is exactly the same size as the transport angle W726 of the first rotary transport body 708; 709; 711; 712; 713; 714 or of the first installation region 726.
  • its transport angle W729 is preferably more than 90°, more preferably more than 100° and even more preferably more than 110° and/or preferably less than 180°, more preferably less than 150°, even more preferably less than 120° and even more preferably less than 115°.
  • the screen printing unit 700 and more preferably the entire printing machine 01 is assigned a base diameter DB.
  • This base diameter DB which corresponds to twice a base radius R0, is for example at least 250 mm, more preferably at least 350 mm, even more preferably at least 370 mm and even more preferably at least 373 mm.
  • This base diameter DB is preferably at most 450 mm, more preferably at most 400 mm, even more preferably at most 380 mm and even more preferably at most 375 mm.
  • the base radius R0 is exactly half the base diameter DB.
  • each base module 704 has at least one respective impression cylinder 708.
  • Each respective impression cylinder 708 has a cylinder barrel 741 and a cylinder channel 742.
  • At least one fixing element of the impression cylinder 708 is arranged in the cylinder channel 742.
  • This at least one fixing element is preferably designed as a gripper, in particular as a clamping gripper.
  • the at least one fixing element serves in particular for gripping the leading edges of the sheets.
  • the cylinder barrel 741 has a support surface 744 for sheets 02. This support surface 744 preferably has at least one and more preferably exactly one impression section 746 with a constant barrel radius R1.
  • the at least one counter-pressure section 746 preferably extends over an angle of at least 170°, more preferably at least 180° around the rotation axis 716 of the counter-pressure cylinder 708.
  • the bale radius R1 is preferably larger than the base radius R0, for example by at least 0.5 mm, preferably at least 1 mm and more preferably at least 2 mm and independently of this, for example by at most 10 mm, preferably at most 5 mm and more preferably at most 4 mm.
  • the bale radius R1 is preferably smaller than twice the base radius R0.
  • the at least one gripper preferably has at least one movable gripper finger 747, which is arranged to be movable relative to the cylinder barrel 708 of the impression cylinder 708.
  • the at least one fixing member preferably has two interacting contact surfaces 748; 749.
  • the inner contact surface 748 and the outer contact surface 749 serve to clamp the sheet 02 and in particular its front edge.
  • the inner contact surface 748 is the contact surface 748 located radially further inside.
  • the outer contact surface 749 is the contact surface 749 located radially further outside. In particular, only such surfaces 748; 749 are suitable as contact surfaces 748; 749 of the gripper. which lie opposite one another.
  • the inner contact surface 748 can merge into the support surface 744 or form part of the support surface 744.
  • the outer contact surface 749 is preferably designed to be movable for opening and/or closing the gripper, while the inner contact surface 748 is arranged stationary relative to the cylinder barrel 742.
  • the counter-pressure section 746 of the support surface 744 of the counter-pressure cylinder 708 preferably has a larger radius R1, called the barrel radius R1, than the inner contact surface 748 of the fixing element.
  • the barrel radius R1 is preferably greater than the greatest distance that any component of the fixing element has from the axis of rotation 716 of the counter-pressure cylinder 708 in the fixing and/or closed state of the fixing element.
  • the at least one gripper of the impression cylinder 708 does not cause any damage to a screen printing form 751.
  • the inner contact surface 748 is at least partially at a distance from the rotation axis 716 of the impression cylinder 708 that corresponds to the base radius R0.
  • a respective sheet 02, which is transported by means of the impression cylinder 708, is fastened with its front edge in the fixing elements and lies partially, in particular mostly, on the support surface 744, in particular on its impression section 746. Since the front part of the sheet 02 is thus at a smaller distance from the rotation axis 716 of the impression cylinder 708 than the part of the sheet 02 to be printed, the part of the sheet 02 to be printed is transported at a higher peripheral speed than the front part of the sheet 02, in particular its front edge.
  • Each impression cylinder 708 of the screen printing unit 700 is involved in the formation of two transfer points 731; 732; 733. If the respective impression cylinder 708 is arranged in the first installation area 726, these are the input transfer point 731 and the first internal transfer point 732. If the respective impression cylinder 708 is arranged in the second installation area 727 is arranged, these are the first internal transfer point 732 and the second internal transfer point 733. An arrangement of an impression cylinder 708 of the screen printing unit 700 in the third installation area 728 or in the fourth installation area 729 is not provided.
  • the impression cylinder 708 forms a respective transfer point 731; 732; 733 preferably with a rotary transport body 701; 711; 712, which is either designed as a receiving drum 104 or as a transfer drum 711 or as a blowing drum 712.
  • a rotary transport body 701; 711; 712 which is either designed as a receiving drum 104 or as a transfer drum 711 or as a blowing drum 712.
  • These three types of rotary transport bodies 104; 711; 712 preferably have in common that outside of an effective range of their fixing elements they only have dimensions that are smaller than the base radius R0. This avoids collisions with the cylinder barrel 741 of the impression cylinder 708.
  • the screen printing unit 700 is designed for printing sheets 02 using at least one printing form 751, in particular a screen printing form 751, preferably designed as a round screen 751.
  • This printing form 751 preferably has a multiplicity of, in particular similar and/or identical, image-producing elements, e.g. print image subjects or, in particular similar and/or identical, groups of image-producing print subjects on the circumference, which are arranged on a circumferential length corresponding to the print image length, e.g. in a matrix-like manner in several columns equidistant from one another transversely to the transport direction T and on a cylinder width corresponding to the print image width in several rows equidistant from one another in the transport direction T.
  • image-producing elements e.g. print image subjects or, in particular similar and/or identical, groups of image-producing print subjects on the circumference, which are arranged on a circumferential length corresponding to the print image length, e.g. in a matrix-like manner in several columns equid
  • the screen printing unit 700 preferably has at least one screen printing form cylinder 752.
  • Each screen printing form cylinder 752 is preferably assigned its own counter-pressure cylinder 708.
  • a respective screen printing form cylinder 752 carries such a round screen 751 and/or has such a round screen 751.
  • the screen printing form cylinder 752 is arranged to rotate about a rotation axis.
  • a Screen printing device 754 has at least one sub-frame 756 and the screen printing form cylinder 752.
  • the sub-frame 756 has, for example, at least two side support devices 761; 762, which are preferably connected to one another via at least one sub-frame cross member 763.
  • the screen printing device 754 preferably also has at least one doctor device 757.
  • the doctor device 757 works together with the round screen 751 in a known manner in order to apply printing ink through openings in the round screen 751 to a respective sheet 02, while this respective sheet 02 is transported held by the impression cylinder 708.
  • the counter-pressure cylinder 708 and the screen printing form cylinder 752 together form a screen printing point 758.
  • the sub-frame 756 supports the screen printing form cylinder 752 directly or preferably indirectly via at least one form cylinder bearing 759.
  • the squeegee device 759 is also part of the screen printing device 754.
  • the squeegee device 759 has at least one squeegee, which can be and/or is positioned on the screen printing form 751, in particular by means of a squeegee positioning device 764.
  • the squeegee positioning device 764 preferably has at least one squeegee actuator 737, which is designed, for example, as a linear drive 737, in particular as an electric linear motor 737 and/or as a pneumatic cylinder 737 and/or as a hydraulic cylinder 737.
  • the screen printing device 754 and in particular its sub-frame 756 are preferably movable relative to the frame 701 of the screen printing unit 700 and in particular relative to the base side walls 706; 707 of the base module 704, in particular pivotable, for example about a pivot axis 724.
  • an actuator 769 is arranged, by means of which the position of the screen printing device 754 relative to the base side walls 706; 707 can be adjusted.
  • This actuator 769 is designed, for example, as an electric linear motor 769 and/or as a pneumatic cylinder 769 and/or as a hydraulic cylinder 769.
  • the screen printing device 754 preferably has at least one and more preferably exactly one forme cylinder drive 766, which drives the screen printing forme cylinder 752 in particular.
  • the forme cylinder drive 766 is preferably designed as a position-controlled Electric motor 766 is formed.
  • the screen printing unit 700 preferably has at least one forme cylinder drive 766 per screen printing forme cylinder 752.
  • This respective forme cylinder drive 766 is preferably different from any drive by means of which the counter-pressure cylinder 708 interacting with the respective screen printing forme cylinder 752 can be driven.
  • the at least one counter-pressure cylinder 708 can be driven by means of a main drive of the screen printing unit 700 and/or the printing press 01, in particular via at least one gear train.
  • the screen printing form cylinder 752 and/or the round screen 751 preferably has an effective screen radius R2.
  • the effective screen radius R2 is the distance of that surface of the screen printing form cylinder 752 or the round screen 751 that comes into contact with the sheets 02 to be printed.
  • the effective screen radius R2 is preferably smaller than the bale radius R1.
  • the effective screen radius R2 is preferably smaller than the base radius R0.
  • the effective screen radius R2 is preferably greater than half the bale radius R1.
  • the effective screen radius R2 is preferably greater than half the base radius R0.
  • a screen diameter DS corresponds to twice the effective screen radius R2.
  • the screen printing diameter DS is, for example, at least 240 mm, preferably at least 270 mm, more preferably at least 275 mm and even more preferably at least 279 mm.
  • This sieve diameter DS is preferably at most 380 mm, more preferably at most 290 mm, even more preferably at most 285 mm and even more preferably at most 281 mm.
  • the screen printing unit 700 is preferably characterized in that it has at least one screen printing form cylinder 752 and at least one counter-pressure cylinder 708 cooperating therewith, and in that a cylinder barrel 741 of the counter-pressure cylinder 708 has a support surface 744 for sheet 02, which has at least one counter-pressure section 746 with a constant barrel radius R1, which extends over an angle of at least 170° around the rotation axis 716 of the counter-pressure cylinder 708, and in that the screen printing form cylinder 752 has a effective screen radius R2 and that the effective screen radius R2 is smaller than the bale radius R1 and that the effective screen radius R2 is greater than half the bale radius R1.
  • the screen printing unit 700 is preferably characterized in that the screen printing unit 700 has at least one further rotary transport body 709; 711; 712; 713 which, together with the impression cylinder 708, forms a transfer point 731; 732; 733, in particular for sheets 02, and that a fixing element of the at least one further rotary transport body 709; 711; 712; 713, provided in particular for holding sheets 02, has an inner contact surface and an outer contact surface which are arranged to cooperate in order to clamp sheets 02, and that this inner contact surface is at least partially at a distance from a rotation axis 717; 718; 719; 721 of this further rotation transport body 709; 711; 712; 713, which corresponds to the base radius R0 and that the effective sieve radius R2 is smaller than the base radius R0 and that the effective sieve radius R2 is greater than half the base radius R0.
  • the screen printing unit 700 is preferably characterized in that a fixing member of the impression cylinder 708, which is provided in particular for holding sheets 02, has an inner contact surface 748 and an outer contact surface 749, which are arranged to cooperate in order to clamp sheets 02, and that this inner contact surface 748 is at least partially at a distance from a rotation axis 716 of the impression cylinder 708 that corresponds to the base radius R0 and that the bale radius R1 is larger than the base radius R0.
  • the cylinder screen 751 For error-free printing, the cylinder screen 751 must rotate during a printing process at a first peripheral speed that, if possible, matches a second peripheral speed at which the cylinder barrel 741 of the impression cylinder 708 or the sheet 02 rotates. However, the difference between the screen radius R2 and the barrel radius R1 results in a different Angle by which the round screen 751 on the one hand and the impression cylinder 708 on the other hand rotate during printing.
  • the support surface 744 first passes the screen printing point 758 and then the cylinder channel 742 passes the screen printing point 758.
  • the rotational movement of the screen printing form cylinder 752 is controlled and/or regulated in such a way that a balance is created while the cylinder channel 742 passes the screen printing point 758.
  • a complete rotation of the impression cylinder 708 is referred to as a revolution or process cycle and corresponds to a rotation angle of 360°.
  • This rotation is divided into a contact phase and a free phase.
  • the contact phase is preferably characterized in that there is contact between the support surface 744 and/or a sheet 02 on the one hand and the round screen 751 and/or the screen printing forme cylinder 752 on the other hand, in particular a rolling contact.
  • the free phase is preferably characterized in that the support surface 744 and/or sheet 02 on the one hand and the round screen 751 and/or the screen printing forme cylinder 752 on the other hand are arranged out of contact.
  • the peripheral speed of the support surface 744 and/or the sheet 02 on the one hand and the round screen 751 and/or the screen printing forme cylinder 752 on the other hand are the same or at least essentially the same during a respective preceding contact phase.
  • the screen printing form cylinder 752 is decelerated in relation to its peripheral speed relative to the impression cylinder 708 after completion of the respective preceding contact phase and/or during a respective free phase and then accelerated again. Between the deceleration and the acceleration, a phase of constant angular velocity can occur. It is relevant that the average peripheral speed of the screen printing form cylinder 752 during the respective free phase is lower than the average peripheral speed of the impression cylinder 708 during this respective free phase.
  • the peripheral speed of the Support surface 744 and/or the sheet 02 on the one hand and the round screen 751 and/or the screen printing forme cylinder 752 on the other hand are then again equal or at least essentially equal.
  • the screen printing forme cylinder 752 can be caught up again by the impression cylinder 708 despite its smaller circumference.
  • a method for operating a sheet-fed printing unit 700 designed as a screen printing unit 700 is preferred, wherein during a sequence of several printing processes taking place one after the other and compensation processes in between, a counter-pressure section 746 of a support surface 744 of a cylinder barrel 741 of an impression cylinder 708 rotates continuously at a constant peripheral speed about its axis of rotation 716 and wherein during this sequence of processes a screen printing form cylinder 752 forming a screen printing point 758 with the impression cylinder 708 is periodically braked and accelerated.
  • the method is preferably characterized in that a screen printing form cylinder 752 and a counter-pressure cylinder 708 interacting with it together form a screen printing point 758 in which sheets 02 are printed one after the other.
  • the method is preferably characterized in that during a respective printing process, a respective sheet 02 is printed while a counter-pressure section 746 of a support surface 744 of a cylinder barrel 741 of the counter-pressure cylinder 708 passes the screen printing point 758.
  • the printing process preferably takes place during the contact phase.
  • the method is preferably characterized in that a respective sheet 02 is held on the counter-pressure surface 746 of the support surface 744 of the counter-pressure cylinder 708 by means of at least one fixing element at least during its printing process and passes the screen printing point 758 at a first sheet speed while the counter-pressure cylinder 708 rotates at a first angular speed.
  • the method is preferably characterized in that during the respective printing process of the respective sheet 02 the screen printing forme cylinder 752 rotates about its axis of rotation at a second angular velocity different from the first angular velocity and the part of the screen printing forme cylinder 752 in contact with the respective sheet 02 rotates about this axis of rotation of the screen printing forme cylinder 752 at a first peripheral speed which is equal to the first sheet speed.
  • the method is preferably characterized in that between each two consecutive printing processes a respective compensation process takes place during which the screen printing forme cylinder 752 is out of contact with any sheet 02 and the impression cylinder 708. The compensation process preferably takes place during the free phase.
  • the method is preferably characterized in that during the respective compensation process the impression cylinder 708 rotates at the first angular velocity and the screen printing form cylinder rotates at least temporarily at a third angular velocity which is lower than the second angular velocity.
  • the method is preferably characterized in that over a respective complete process cycle, which lasts from the start of a printing process to the start of the next printing process, an average angular speed of the screen printing form cylinder 752 is equal to an average angular speed of the counter-pressure cylinder 708 interacting with it.
  • the method is preferably characterized in that over the same respective complete process cycle, an average peripheral speed of the screen printing form cylinder 752 is smaller than an average peripheral speed of the counter-pressure cylinder 708 interacting with it.
  • the procedure is characterized preferably characterized in that the sheets 02 are transferred after their respective printing process 02, in particular indirectly, to a subsequent rotary transport body 709; 711; 712 of the sheet-fed printing unit 700 and are then transported in a transport process with the first angular velocity about the rotation axis 717; 718; 719 of this subsequent rotary transport body 709; 711; 712.
  • the method is preferably characterized in that a peripheral speed with which the sheets 02 are transported during the respective transport process about this rotation axis 717; 718; 719 is equal to a second sheet speed that is lower than the first sheet speed. This preferably also applies to the respective alignment cylinder 709.
  • the screen printing unit 700 has, for example, at least one transfer drum 711.
  • a respective transfer drum 711 has, in the usual way, at least one gripping device for conveying sheets.
  • the respective transfer drum 711 preferably has at least one base body.
  • the at least one gripping device has fixing elements for receiving and fixing the sheets 02.
  • the fixing elements are preferably arranged on the base body and/or so as to be movable together with it.
  • Grippers, in particular clamping and/or suction grippers for gripping the sheet edges, are preferably arranged as fixing elements.
  • the respective transfer drum 711 and in particular its base body and/or its at least one gripping device are arranged so as to be rotatable about a rotation axis 718.
  • the transfer drum 711 has, for example, but not necessarily, a support surface for sheets 02.
  • the at least one gripper preferably has at least one movable gripper finger, which is arranged to be movable relative to a base body of the transfer drum 711.
  • the at least one fixing member preferably has two interacting contact surfaces, in particular an inner contact surface and an outer contact surface.
  • the inner contact surface and the outer contact surface serve to clamp the sheet 02 and in particular its front edge.
  • the inner contact surface is the contact surface located radially further inside.
  • the outer contact surface is the contact surface located radially further outside.
  • the outer contact surface is preferably designed to be movable for opening and/or closing the gripper, while the inner contact surface is arranged stationary relative to the base body of the transfer drum 711.
  • the inner contact surface is preferably at least partially at a distance from the rotation axis 718 of the transfer drum 711 that corresponds to the base radius R0.
  • this is preferably arranged at a distance from the rotation axis 718 of the transfer drum 711 that is smaller than the base radius R0. In this way, the transfer drum 711 can form a transfer point 732; 733 with an impression cylinder 708 without colliding with its cylinder barrel 741.
  • the screen printing unit 700 has, for example, at least one blowing drum 712.
  • Each blowing drum 712 has, in the usual way, at least one gripping device for conveying sheets.
  • Each blowing drum 712 preferably has at least one base body.
  • the at least one gripping device has fixing elements for receiving and fixing the sheets 02.
  • the fixing elements are preferably arranged on the base body and/or so as to be movable together with it.
  • Grippers, in particular clamping and/or suction grippers for gripping the sheet edges, are preferably arranged as fixing elements.
  • the respective blowing drum 712 and in particular its at least one gripping device and/or its base body are arranged so as to be rotatable about a rotation axis 719.
  • the at least one gripper preferably has at least one movable gripping finger which is arranged so as to be movable relative to a base body of the blowing drum 712.
  • the at least one fixing element preferably has two interacting contact surfaces.
  • the inner contact surface and the outer contact surface serve to clamp the sheet 02 and in particular its front edge.
  • the inner contact surface is the contact surface located radially further inside.
  • the outer contact surface is the contact surface located radially further outside.
  • the outer contact surface is preferred designed to be movable for opening and/or closing the gripper, while the inner contact surface is arranged stationary relative to the base body of the blowing drum 711.
  • the inner contact surface is at least partially at a distance from the rotation axis 719 of the blowing drum 712 that corresponds to the base radius R0.
  • the respective blowing drum 712 preferably does not have a rotatable support surface for sheets 02.
  • at least one sheet guiding device and at least one sheet blowing device are arranged.
  • the at least one sheet guiding device preferably has at least one inner surface, the shape of which corresponds to a section of a cylinder jacket, the axis of which is identical to the axis of rotation 719 of the blowing drum 712.
  • This inner surface is preferably arranged at a distance from the axis of rotation 719 of the blowing drum 712 that is greater than the base radius R0.
  • the at least one sheet blowing device serves to generate a gas flow directed from the inside against the inner surface of this sheet guiding device.
  • the corresponding sheet 02 can be held by the gripping device and transported further around the axis of rotation 719, while its inward-facing side is not touched by components of the screen printing unit 700, apart from contact surfaces of the fixing elements.
  • the respective blowing drum 712 is preferably arranged directly after a respective impression cylinder 708 along the transport path provided for the transport of sheets 02 and more preferably also directly before a respective alignment cylinder 709. In this way, sheets can be transported from the impression cylinder 708 to the alignment cylinder 709 without a freshly printed sheet surface coming into contact with an object and the applied print image being damaged in this way.
  • At least one pre-alignment device 767 is arranged in the area of the blowing drum 712.
  • This at least one pre-alignment device 767 is preferably a component a respective alignment device 771.
  • This at least one pre-alignment device 767 is preferably arranged in a stationary manner.
  • This at least one pre-alignment device 767 is preferably assigned to a respective blowing drum 712, which is further preferably assigned to a respective subsequent alignment cylinder 709.
  • the pre-alignment device 767 is preferably designed such that it extends over an angle of action around the axis of rotation 719 of the blowing drum 712.
  • the pre-alignment device 767 preferably has at least one and further preferably several electromagnets and/or permanent magnets.
  • the screen printing unit 700 has, for example, at least one suction drum 713.
  • a respective suction drum 713 has, in the usual way, at least one gripping device for conveying sheets.
  • the respective suction drum 713 preferably has at least one base body.
  • the at least one gripping device has fixing elements for receiving and fixing the sheets 02.
  • the fixing elements are preferably arranged on the base body and/or so as to be movable together with it.
  • Grippers, in particular clamping and/or suction grippers for gripping the sheet edges, are preferably arranged as fixing elements.
  • the respective suction drum 713 and in particular its base body and/or its at least one gripping device are arranged so as to be rotatable about a rotation axis 721.
  • the suction drum 713 preferably has a support surface for sheets 02.
  • the at least one gripper preferably has at least one movable gripper finger, which is arranged to be movable relative to a base body of the suction drum 713 and/or the support surface of the suction drum 713.
  • the at least one fixing member preferably has two interacting contact surfaces, in particular an inner contact surface and an outer contact surface.
  • the inner contact surface and the outer contact surface serve to clamp the sheet 02 and in particular its front edge.
  • the inner contact surface is the contact surface located radially further inside.
  • the outer contact surface is the contact surface located radially further outside.
  • the outer contact surface is designed to be movable for opening and/or closing the gripper, while the inner contact surface is arranged in a stationary manner relative to the base body of the suction drum 713.
  • the inner contact surface is preferably at least partially at a distance from the rotation axis 721 of the suction drum 713 that corresponds to the base radius R0.
  • the support surface of the suction drum 713 is preferably arranged at a distance from the rotation axis 721 of the suction drum 713 that corresponds to the base radius R0.
  • the support surface of the suction drum 713 preferably has suction openings, in particular for sucking in ambient air and/or sheets 02.
  • a sheet 02 is arranged on the support surface of the suction drum 713, its front edge is preferably held by grippers.
  • the sheet 02 is held on the support surface only by the suction openings.
  • at least one inspection device 768 is arranged, more preferably aligned with the support surface of the suction drum 713. By sucking in the respective sheet 02, its position on the suction drum 713 is particularly stable. This enables inspection with particularly high precision.
  • the at least one inspection device 768 is arranged along the transport path provided for the transport of sheets 02 after a last alignment device 771.
  • This at least one inspection device 768 operates, for example, using the incident light method and preferably has, in addition to a light source directed at the transport path provided for the transport of sheets 02, a camera directed at the point of impact of the light source on the transport path provided for the transport of sheets 02. Sheets 02 deemed to be defective or to have a faulty print image can then be collected on one of the stacks, while so-called good sheets are deposited on another stack.
  • the screen printing unit 700 has, for example, a sprocket shaft 714. This is particularly relevant when the sheet delivery 900 follows directly after the screen printing unit 700 along the transport path provided for the transport of sheets 02.
  • the sprocket shaft 714 serves in particular to deflect a traction means, in particular designed as a chain, of a chain conveyor system 904 or chain gripper system 904. Its diameter is preferably matched to the base radius R0.
  • Fixing elements of the chain conveyor system 904 or chain gripper system 904 preferably have two interacting contact surfaces, in particular an inner contact surface and an outer contact surface. The inner contact surface and the outer contact surface serve to clamp the sheet 02 and in particular its front edge. The inner contact surface is the contact surface located radially further inside.
  • the outer contact surface is the contact surface located radially further outside.
  • the inner contact surface is at least partially at a distance from the axis of rotation 722 of the sprocket shaft 714 that corresponds to the base radius R0.
  • the sprocket shaft 714 is preferably arranged in the fourth installation area 729 of a base module 704.
  • the screen printing unit 700 preferably has at least one alignment cylinder 709, which is designed in particular as a rotary transport body 709.
  • the respective alignment cylinder 709 is preferably designed as a magnetically effective alignment cylinder 709.
  • sheets 02 are transported by means of the respective alignment cylinder 709 and the magnetic particles of the previously applied and not yet dried coating agent are oriented according to a pattern of magnetic field lines emanating from the respective alignment cylinder 709.
  • the respective alignment cylinder 709 has a plurality of elements in the area of its outer circumference that create a magnetic field, in short magnetic elements, which serve in particular to orient at least some of the magnetic or magnetizable particles of the coating agent applied to the respective passing sheet 02.
  • the magnetic elements can be permanent magnets with or without engraving, electromagnets or Combinations of one or more permanent magnets and/or one or more electromagnets can be formed. These can be removed and/or rotated about a radial axis and/or adjusted individually or in groups with regard to their axial and/or circumferential position on a cylinder base body and together with this form the respective alignment cylinder 709.
  • several, e.g. at least four, rows of several, e.g. three to eight, in particular four to seven, magnetic elements spaced apart from one another transversely to the transport direction T are provided or can be provided in the circumference - e.g. in a matrix-like manner.
  • the particles are aligned or oriented by means of the magnetic field lines caused by the magnetic elements, possibly also through the respective sheet 02.
  • the magnetic elements can be arranged or can be arranged in or on several, e.g. in three to eight, in particular in four to seven, axially spaced-apart ring elements that can preferably be positioned in the axial direction A, wherein in or on these ring elements at least one, preferably several, e.g. between two and twelve, advantageously between five and ten, magnetic elements are arranged or can be arranged one behind the other in the circumferential direction and preferably positionable in the circumferential direction.
  • the at least one alignment cylinder 709 has at least one suction device by means of which a respective sheet 02 can be held on the alignment cylinder 709.
  • the respective alignment cylinder 709 is mounted between frame side walls 702; 703 of the screen printing unit 700 in such a way that it can be removed for a change or to carry out set-up work - in particular without removing one of the frame side walls 702; 703.
  • a A torsionally rigid, detachable connection is provided between the alignment cylinder 709 or cylinder pin and a subsequent drive shaft, the separation point of which lies within the clear width between the frame side walls 702; 703.
  • At least one outer magnet device 774 is arranged, which is designed in particular as a simultaneous magnet device 774.
  • This at least one outer magnet device 774 is preferably arranged in a stationary manner, at least during printing operation.
  • This at least one outer magnet device 774 is preferably assigned to a respective alignment cylinder 709.
  • This at least one outer magnet device 774 is preferably part of an alignment device 771, in particular the alignment device 771 to which the associated alignment cylinder 709 also belongs.
  • the outer magnet device 774 is preferably designed such that it extends over an angle of action around the associated alignment cylinder 709.
  • the outer magnet device 774 preferably has at least one and more preferably several electromagnets and/or permanent magnets and preferably interacts with the magnetic devices of the respective alignment cylinder 709.
  • the sheet-fed printing unit 700 is preferably characterized in that it has at least one screen printing form cylinder 752 and at least one counter-pressure cylinder 708 interacting therewith and at least one further rotary transport body 709; 711; 712; 713 and that a fixing member of the counter-pressure cylinder 708, which is provided in particular for holding sheets 02, has an inner contact surface 748 and an outer contact surface 749, which are arranged to cooperate in clamping sheets 02 and that this inner contact surface 748 is at least partially at a distance from a rotation axis 716 of the counter-pressure cylinder 708, which corresponds to a base radius R0 and that a cylinder barrel 741 of the counter-pressure cylinder 708 has a support surface 744 for sheets 02, which has at least one counter-pressure section 746 with a constant bale radius R1 which extends over an angle of at least 170° around the axis of rotation 716 of the impression cylinder 708 and that the bale radius R1 is larger than the base radius R
  • the sheet-fed printing unit 700 is preferably characterized in that the further rotary transport body 709; 711; 712; 713 is designed as an alignment cylinder 709, which has a plurality of elements causing a magnetic field in the region of its outer circumference.
  • the sheet-fed printing unit 700 is preferably characterized in that a blowing drum 712 is arranged to form a transfer point 732; 733 with the impression cylinder 708 and another transfer point 733; 734 with the alignment cylinder 709.
  • the sheet-fed printing unit 700 is preferably characterized in that a fixing element of the at least one blowing drum 712, which is provided in particular for holding sheets 02, has an inner contact surface and an outer contact surface, which are arranged to cooperate in order to clamp sheets 02, and this inner contact surface is at least partially at a distance from a rotation axis 719 of this blowing drum 712, which corresponds to the base radius R0.
  • the sheet-fed printing unit 700 is preferably characterized in that at least one sheet guiding device and at least one sheet blowing device are assigned to the blowing drum 712 and the at least one sheet guiding device has at least one inner surface whose shape corresponds to a section of a cylinder jacket whose axis is identical to the rotation axis 719 of the blowing drum 712. and this inner surface is arranged at a distance from the axis of rotation 719 of the blowing drum 712 that is greater than the base radius R0.
  • the sheet-fed printing unit 700 is preferably characterized in that the at least one sheet blowing device serves to generate a gas flow directed from the inside against the inner surface of this sheet guiding device.
  • the sheet-fed printing unit 700 is preferably characterized in that in the area of the blowing drum 712 at least one pre-alignment device 767 is arranged, in particular in a stationary manner, which is part of a respective alignment device 771 and which has at least one electromagnet and/or permanent magnet.
  • the sheet-fed printing unit 700 is preferably characterized in that a stationary frame 701 of the screen printing unit 700 has two frame side walls 702; 703 and that the screen printing unit 700 has at least one stationary base module 704 which has two base side walls 706; 707 which are arranged opposite one another and that four installation areas 726; 727; 728; 729 for rotary transport bodies 708; 709; 711; 712; 713; 714 are defined by the base module 704 and that the impression cylinder 708 is arranged in one of these four installation areas 726; 727 and that the at least one further rotary transport body 709; 711; 712; 713 is arranged in one of these four installation areas 728; 729 is arranged.
  • the sheet-fed printing unit 700 is preferably characterized in that a passage plane E of the base module 704 is defined as the plane E which completely contains both a rotation axis 716; 717; 718; 719; 721; 722 of the first rotation transport body 708; 709; 711; 712; 713; 714 of this base module 704 and a rotation axis 716; 717; 718; 719; 721; 722 of a fourth rotation transport body 708; 709; 711; 712; 713; 714 of this respective base module 704 and that the passage plane E has a normal vector N which extends in the vertical direction V.
  • the sheet-fed printing unit 700 designed as a screen printing unit 700 is preferably characterized in that it has at least one screen printing forme cylinder 752 which forms a screen printing point 758 with an impression cylinder 708, and in that at least one alignment cylinder 709 is arranged after the impression cylinder 708 along a transport path provided for transporting sheets, which alignment cylinder has a plurality of elements which create a magnetic field in the region of its outer circumference.
  • the screen printing unit 700 is preferably characterized in that a transport angle W728; W729 of the alignment cylinder 709 is the angular range around the axis of rotation 717 of the alignment cylinder 709 in which sheets 02 are transported by means of the alignment cylinder 709, and in that at least one drying device 772 is arranged on the transport angle W728; W729 of the alignment cylinder 709 and that, viewed in the direction of rotation, after the at least one drying device 772, at least one inspection device 768 is arranged aligned with the transport angle W728; W729 of the alignment cylinder 709.
  • the screen printing unit 700 is preferably characterized in that the counter-pressure cylinder 708 forms a transfer point 732 with a rotary transport body 712 and that this rotary transport body 712 forms a further transfer point 733 with the alignment cylinder 709.
  • the screen printing unit 700 is preferably characterized in that this rotary transport body 712 is designed as a blow drum 712.
  • the screen printing unit 700 is preferably characterized in that a transport angle W728 of the alignment cylinder 709 more than 180° and/or at least 200° and/or at least 220° and/or at least 240° and/or that the transport angle W728 of the alignment cylinder 709 is at most 300° and/or at most 270° and/or at most 250° and/or at most 245°.
  • the screen printing unit 700 is preferably characterized in that at least one stationary outer magnet device 774 assigned to the alignment cylinder 709 is arranged and that the outer magnet device 774 extends over an angle of action around the assigned alignment cylinder 709 and that the outer magnet device 774 is arranged in front of the at least one drying device 772 in the direction of rotation aligned with the transport angle W728; W729 of the alignment cylinder 709.
  • the screen printing unit 700 is preferably characterized in that, viewed in the direction of rotation, a darkening device is arranged between the at least one drying device 772 and the at least one inspection device 768.
  • the at least one inspection device 768 is preferably designed as a reflection inspection device 768 and/or preferably has at least one radiation source, in particular a light source.
  • the screen printing unit 700 has at least one screen printing form cylinder 752 and at least one counter-pressure cylinder 708 that interacts therewith, wherein more preferably the screen printing form cylinder 752 is assigned an effective screen radius R2 and the counter-pressure cylinder 708 is assigned a bale radius R1.
  • the screen printing unit 700 has at least one, in particular stationary, frame 701 that has at least two, in particular stationary, frame side walls 702; 703 that are arranged opposite one another in a transverse direction A.
  • the screen printing unit 700 preferably has at least one, in particular first, base module 704, which has two one-piece and stationary base side walls 706; 707, each of which is part of a respective frame side wall 702; 703.
  • the base side walls 706; 707 preferably each have a load-bearing wall 776; 777 and more preferably at least one reinforcement 778; 779.
  • these two load-bearing walls 776; 777 each define one of two inner wall planes W1; W2, by which more preferably a clear width W of the respective base module 704 is defined.
  • the respective base module 704 each has at least four and more preferably exactly four installation areas 726; 727; 728; 729 for rotary transport bodies 708; 709; 711; 712; 713; 714, to which respective recesses 781; 782; 783; 784 in the load-bearing walls 776; 777 of the base side walls 706; 707 are assigned.
  • a respective rotary transport body 708; 709; 711; 712; 713; 714 is arranged in each of the at least four installation areas 726; 727; 728; 729.
  • the first installation area 726 along the transport path provided for the transport of sheets 02 and the second installation area 727 along this transport path of the respective base module 704 form a selection group.
  • the rotary transport body 708; 709; 711; 712; 713; 714 arranged in the first installation area 726 is assigned a first rotation axis 716; 717; 718; 719; 721; 722.
  • the rotary transport body 708; 709; 711; 712; 713; 714 arranged in the second installation area 726 is assigned a second rotation axis 716; 717; 718; 719; 721; 722.
  • a rotary transport body 708 designed as a counter-pressure cylinder 708 is arranged, which is arranged, for example, to cooperate with two other rotary transport bodies 709; 711; 712; 713; 714 and with a screen printing form cylinder 752.
  • a rotary transport body 709; 711; 712; 713; 714 is arranged in the other of the two installation areas 726; 727 of the selection group, which is out of contact with any screen printing form cylinder 752.
  • a first sieve axis S1 is a straight line that is oriented parallel to the transverse direction A and that has a first distance A1 from the first axis of rotation 716; 717; 718; 719; 721; 722 and that has a second distance A2 from the second axis of rotation 716; 717; 718; 719; 721; 722.
  • the first distance A1 preferably corresponds to the sum of the effective sieve radius R2 and the bale radius R1.
  • the second distance A2 is preferably greater than the sum of the effective sieve radius R2 and the bale radius R1.
  • the second distance A2 is preferably greater than 2.5 times the bale radius R1.
  • the second distance A2 is preferably less than 3.5 times and more preferably than 3 times the bale radius R1.
  • the first screen axis S1 is a possible position of a rotation axis of a screen printing forme cylinder 752.
  • a second screen axis S2 is a straight line that is oriented parallel to the transverse direction A and that has the second distance A2 from the first rotation axis 716; 717; 718; 719; 721; 722 and that has the first distance A1 from the second rotation axis 716; 717; 718; 719; 721; 722.
  • the second screen axis S2 is an alternative possible position of a rotation axis of a screen printing forme cylinder 752.
  • the first screen axis S1 and the second screen axis S2 have a third distance A3 from each other that is greater than 3 times and preferably 3.5 times the barrel radius R1.
  • a first screen axis region includes at least the first screen axis S1.
  • the first sieve axis region either has no intersection with a base side wall 706; 707 or only those intersections with one or both base side walls 706; 707 that are at least 2 cm, more preferably at least 5 cm, even more preferably at least 10 cm and even more preferably at least 20 cm outside the spatial area delimited by the two inner wall planes W1; W2.
  • a second sieve axis region includes at least the second sieve axis S2.
  • the second sieve axis region either has no intersection with a base side wall 706; 707 or only those intersections with one or both base side walls 706; 707 that are at least 2 cm, more preferably at least 5 cm, even more preferably at least 10 cm and even more preferably at least 20 cm outside the spatial area delimited by the two inner wall planes W1; W2.
  • the screen printing unit 700 is preferably characterized in that the first screen axis region extends from the first screen axis S1 in each direction orthogonal to the transverse direction A over at least 1 cm, more preferably at least 2 cm, even more preferably at least 5 cm and even more preferably at least 10 cm and/or that the second screen axis region extends from the second screen axis S2 in each direction orthogonal to the transverse direction A over at least 1 cm, more preferably at least 2 cm, even more preferably at least 5 cm and even more preferably at least 10 cm.
  • the screen printing unit 700 is preferably characterized in that a screen printing forme cylinder 752 is arranged in one screen axis area of this respective base module 704 and no screen printing forme cylinder is arranged in the other screen axis area of this respective base module 704.
  • the screen printing unit 700 is preferably characterized in that each screen axis area is arranged completely after an input transfer point 731 with respect to a transport direction T orthogonal to the transverse direction A.
  • the screen printing unit 700 is preferably characterized in that one of the screen axis areas of the respective base module 704 overlaps with at least one squeegee adjusting device 764, which is arranged outside the spatial area delimited by the two inner wall planes W1; W2.
  • the screen printing unit 700 is preferably characterized in that the at least one squeegee adjusting device 764 is arranged on a partial frame 756, which is pivotably arranged on the base side walls 706; 707 of this base module 704.
  • the partial frame 756 is preferably arranged within the spatial area delimited by the two inner wall planes W1; W2.
  • the Partial frame 756 is arranged to support the screen printing forme cylinder 752 via a forme cylinder bearing 759.
  • the screen printing unit 700 preferably has at least one screen printing form cylinder 752 and at least one counter-pressure cylinder 708 that interacts with it.
  • the screen printing unit 700 preferably has at least one, in particular stationary, frame 701 that has at least two, in particular stationary, frame side walls 702; 703 that are arranged opposite one another in a transverse direction A.
  • the screen printing unit 700 preferably has at least one, in particular first, base module 704 that has two one-piece and stationary base side walls 706; 707 that are each part of a respective frame side wall 702; 703.
  • the base side walls 706; 707 preferably each have a supporting wall 776; 777 and more preferably at least one reinforcement 778; 779.
  • the screen printing unit 700 is preferably characterized in that it has at least a first base module 704 and at least a second base module 704, wherein each base module 704 has two one-piece and stationary base side walls 706; 707, which are each part of a respective frame side wall 702; 703.
  • the respective base module 704 preferably has four installation areas 726; 727; 728; 729 for rotary transport bodies 708; 709; 711; 712; 713; 714, which more preferably have respective recesses 781; 782; 783; 784 assigned to them in the load-bearing walls W1; W2 of the base side walls 706; 707.
  • the relative position of the four installation areas 726; 727; 728; 729 of the first base module 704 to each other preferably corresponds to the relative position of the four installation areas 726; 727; 728; 729 of the second base module 704 to each other.
  • the respective first installation area 726 along the transport path provided for the transport of sheets 02 and the respective second installation area 727 of the respective base module 704 along this transport path form a respective selection group of the respective base module 704.
  • a counter-pressure cylinder 708 interacting with a screen printing form cylinder 752 is arranged in one of the installation areas 726; 727 of the selection group of the first base module 704.
  • a respective rotary transport body 708; 709; 711; 712; 713; 714 is arranged in each of the at least four installation areas 726; 727; 728; 729 of the two base modules 704.
  • the screen printing unit 700 is preferably characterized in that in at least one installation area 726; 727; 728; 729 of the first base module 704, a functionally different rotary transport body 708; 709; 711; 712; 713; 714 is arranged than in an installation area 726; 727; 728; 729 of the second base module 704 that corresponds in terms of its installation position.
  • the sheet-fed printing unit 700 is then characterized in that in a first installation area 726 of the first base module 704 along this transport path, a functionally different rotary transport body 708; 709; 711; 712; 713; 714 is arranged than in a first installation area 726 of the second base module 704 along this transport path and/or that in a second installation area 727 of the first base module 704 along this transport path a functionally different rotation transport body 708; 709; 711; 712; 713; 714 is arranged than in a second installation area 727 of the second base module 704 along this transport path and/or that in a third installation area 728 of the first base module 704 along this transport path a functionally different rotation transport body 708; 709; 711; 712; 713; 714 is arranged than in a third installation area 728 of the second base module 704 along this transport path and/or that in a fourth installation area 729 of the first base module 704 along this transport path a functionally different
  • the screen printing unit 700 is preferably characterized in that a counter-pressure cylinder 708 interacting with a screen printing form cylinder 752 is arranged in exactly one of the installation areas 726; 727 of the selection group of the second base module 704.
  • the screen printing unit 700 is preferably characterized in that the counter-pressure cylinder 708 arranged in the first base module 704 is arranged in a first installation area 726 of the first base module 704 and the counter-pressure cylinder 708 arranged in the second base module 704 is arranged in a first installation area 726 of the second base module 704.
  • the screen printing unit 700 is preferably characterized in that the counter-pressure cylinder 708 arranged in the first base module 704 is arranged in a first installation area 726 of the first base module 704 and the counter-pressure cylinder 708 arranged in the second base module 704 is arranged in a second installation area 727 of the second base module 704.
  • the screen printing unit 700 is preferably characterized in that an alignment cylinder 709 is arranged in an installation area 726; 727; 728; 729 of the first base module 704, which has a plurality of elements that create a magnetic field in the region of its outer circumference and/or in that an alignment cylinder 709 is arranged in an installation area 726; 727; 728; 729 of the second base module 704, which has a plurality of elements that create a magnetic field in the region of its outer circumference.
  • the screen printing unit 700 is preferably characterized in that a blow drum 712 is arranged in an installation area 726; 727; 728; 729 of the first base module 704 and/or in that a blow drum 712 is arranged in an installation area 726; 727; 728; 729 of the second base module 704, a blowing drum 712 is arranged.
  • a sheet-fed printing machine 01 has, for example, in addition to a described screen printing unit 700, at least one further printing unit 200; 500; 600, which is designed as a sheet-fed simultaneous printing unit 200 and/or which is designed as a sheet-fed numbering printing unit 500 and/or which is designed as a flexographic printing unit 600.
  • a fixing element of the respective impression cylinder 708, which is provided in particular for holding sheets 02, has an inner contact surface 748 and an outer contact surface 749, which are arranged to cooperate in order to clamp sheets 02, and this inner contact surface 748 is at least partially at a distance from an axis of rotation 716 of the impression cylinder 708 that corresponds to a base radius R0, wherein the bale radius R1 is greater than the base radius R0.
  • the printing press 01 is preferably characterized in that at least one fixing element, which is provided in particular for holding sheets 02, of at least one and preferably every sheet transport cylinder 201; 202; 501; 502; 601; 602 of this at least one further printing unit 200; 500; 600 has an inner contact surface and an outer contact surface which are arranged to cooperate for clamping sheets 02 and that this inner contact surface is at least partially at a distance from a rotation axis 216; 217; 516; 517; 616; 617 of this sheet transport cylinder 201; 202; 501; 502; 601; 602 which corresponds to the base radius R0 or an integer multiple of the base radius R0, in particular twice the base radius R0.
  • printing machines 01 each of which has at least one screen printing unit 700.
  • a substrate feed device 100 designed as a sheet feeder 100 is arranged upstream of the respective screen printing unit 700 and a sheet delivery 900 designed as a multiple stack delivery 900 is arranged downstream.
  • the respective printing machines 01 can be modified in such a way that they can additionally have further sheet processing units 200; 500; 600 between the sheet feeder 100 and the sheet delivery 900.
  • the sheet-fed printing machine 01 preferably has a main drive which drives a gear train. At least all of the rotary transport bodies 708; 709; 711; 712; 713; 714 of the screen printing unit 700 are preferably connected via this gear train. drivable, more preferably also rotary transport bodies of any other printing units 200; 500; 600 and/or the sheet feeder 100 and/or the sheet delivery 900.
  • a first embodiment of such a screen printing unit 700 has two adjacent base modules 704.
  • the first base module 704 along the transport path provided for the transport of sheets 02 has a first impression cylinder 708 in its first installation area 726, a first blowing drum 712 in its second installation area 727, a first alignment cylinder 709 in its third installation area 728 and a first transfer drum 711 in its fourth installation area 729.
  • the second base module 704 along the transport path provided for the transport of sheets 02 has a second impression cylinder 708 in its first installation area 726, a second blowing drum 712 in its second installation area 727, a first suction drum 713 in its third installation area 728 and a sprocket shaft 714 in its fourth installation area 729.
  • a respective screen printing form cylinder 752 is arranged to cooperate with each impression cylinder 708.
  • a pre-alignment device 767 is arranged to cooperate with the first blowing drum 712.
  • a drying device 772 or curing device 772 and/or an external magnetic device 774 is arranged to cooperate with the alignment cylinder 709.
  • an inspection device 768 is arranged to cooperate with the suction drum 713.
  • a sheet feeder 100 is placed in front of the screen printing unit 700, in particular in such a way that its acceptance drum 104 forms the first transfer point 731 with the impression cylinder 708 of the first base module 704.
  • the screen printing unit 700 for example, is a Sheet delivery 900, in particular such that the sprocket shaft 714 is integrated into the sheet conveyor system 904 of the sheet delivery 900. (By way of example, a sheet-fed printing machine with such a screen printing unit 700 is shown schematically in Fig. 3a shown.)
  • a second embodiment of such a screen printing unit 700 has three base modules 704.
  • the first base module 704 along the transport path provided for the transport of sheets 02 is connected to the second base module 704 via an intermediate module 738.
  • the second base module 704 and the third base module 704 are arranged adjacent to one another.
  • the first base module 704 along the transport path provided for the transport of sheets 02 has a first impression cylinder 708 in its first installation area 726, a first blowing drum 712 in its second installation area 727, a first alignment cylinder 709 in its third installation area 728 and a first transfer drum 711 in its fourth installation area 729.
  • the subsequent intermediate module 738 has a second alignment cylinder 709 and subsequently a second transfer drum 711.
  • the second base module 704 along the transport path provided for the transport of sheets 02 has a second impression cylinder 708 in its first installation area 726, a second blowing drum 712 in its second installation area 727, a third alignment cylinder 709 in its third installation area 728 and a third transfer drum 711 in its fourth installation area 729.
  • the third base module 704 along the transport path provided for the transport of sheets 02 has a fourth transfer drum 711 in its first installation area 726, a third impression cylinder 708 in its second installation area 727, a third blowing drum 712 in its third installation area 728 and a fourth alignment cylinder 709 in its fourth installation area 729.
  • a first suction drum 713, a second suction drum 713, a fifth suction drum 713 and a fifth transfer drum 711 are arranged.
  • Transfer drum 711 and a sprocket shaft 714 are arranged in one or more intermediate frames 738.
  • a respective screen printing form cylinder 752 is arranged to cooperate with each counter-pressure cylinder 708.
  • a respective pre-alignment device 767 is arranged to cooperate with each blowing drum 712.
  • a respective drying device 772 or curing device 772 and/or an external magnetic device 774 is arranged to cooperate with each alignment cylinder 709.
  • a respective inspection device 768 is arranged to cooperate with each suction drum 713.
  • This second embodiment of a screen printing unit 700 allows a first printing of a front side of sheet 02, a subsequent double alignment of particles applied during this, a subsequent second printing of the front side of the sheet 02, a subsequent alignment of particles applied during this, a first printing of a back side of the sheet 02, a subsequent alignment of particles applied during this and a subsequent inspection of the front and back side of the sheet 02.
  • the screen printing unit 700 is preceded by a sheet feeder 100, for example, in particular such that its receiving drum 104 forms the first transfer point 731 with the impression cylinder 708 of the first base module 704.
  • the screen printing unit 700 is followed by a sheet delivery 900, for example, in particular such that the sprocket shaft 714 is integrated into the sheet conveyor system 904 of the sheet delivery 900.
  • a sheet-fed printing machine with such a screen printing unit 700 is shown schematically in Fig. 3b shown.
  • a third embodiment of such a screen printing unit 700 has two adjacent base modules 704.
  • the first base module 704 along the transport path provided for the transport of sheets 02 has a first impression cylinder 708 in its first installation area 726, a first blowing drum 712 in its second installation area 727, a first Alignment cylinder 709 in its third installation area 728 and in particular a first transfer drum 711 in its fourth installation area 729.
  • the second base module 704 along the transport path provided for the transport of sheets 02 has in particular a second alignment cylinder 709 in its first installation area 726, in particular a second transfer drum 711 in its second installation area 727, in particular a first suction drum 713 in its third installation area 728 and a sprocket shaft 714 in its fourth installation area 729.
  • a respective screen printing form cylinder 752 is preferably arranged so as to interact with each impression cylinder 708.
  • a pre-alignment device 767 is preferably arranged so as to interact with the first blowing drum 712.
  • a drying device 772 or curing device 772 and/or an external magnetic device 774 are preferably arranged so as to interact with the alignment cylinder 709.
  • an inspection device 768 is arranged in cooperation with the suction drum 713.
  • the screen printing unit 700 is preceded, for example, by a sheet feeder 100, in particular such that its receiving drum 104 forms the first transfer point 731 with the impression cylinder 708 of the first base module 704.
  • the screen printing unit 700 is followed, for example, by a sheet delivery 900, in particular such that the sprocket shaft 714 is integrated into the sheet conveyor system 904 of the sheet delivery 900.
  • a sheet-fed printing machine with such a screen printing unit 700 is shown schematically in Fig. 3c shown.
  • a fourth embodiment of such a screen printing unit 700 has a base module 704.
  • the base module 704 has a counter-pressure cylinder 708 in its first installation area 726, a blowing drum 712 in its second installation area 727, a first alignment cylinder 709 in its third Installation area 728 and a transfer drum 711 in its fourth installation area 729.
  • a second alignment cylinder 709 and a sprocket shaft 714 are then arranged one after the other in one or more intermediate frames 738.
  • a screen printing form cylinder 752 is preferably arranged to cooperate with the counter-pressure cylinder 708.
  • a pre-alignment device 767 is preferably arranged to cooperate with the blowing drum 712.
  • a drying device 772 or curing device 772 and/or an external magnetic device 774 is preferably arranged to cooperate with each alignment cylinder 709.
  • This fourth embodiment of a screen printing unit 700 allows printing on a front side of sheet 02, a subsequent alignment of particles applied during this process and a subsequent second alignment of particles applied during this process.
  • the screen printing unit 700 is preceded by a sheet feeder 100, for example, in particular such that its receiving drum 104 forms the first transfer point 731 with the impression cylinder 708 of the first base module 704.
  • the screen printing unit 700 is followed by a sheet delivery 900, for example, in particular such that the sprocket shaft 714 is integrated into the sheet conveyor system 904 of the sheet delivery 900. (By way of example, a sheet-fed printing machine with such a screen printing unit 700 is shown schematically in Fig. 3d shown.)
  • a fifth embodiment of such a screen printing unit 700 has three base modules 704 arranged adjacent to one another.
  • the first base module 704 along the transport path provided for the transport of sheets 02 has a first counter-pressure cylinder 708 in its first installation area 726, a first blowing drum 712 in its second installation area 727, a first alignment cylinder 709 in its third installation area 728 and a first transfer drum 711 in its fourth installation area 729.
  • the second base module 704 along the transport path provided for the transport of sheets 02 has a second counter-pressure cylinder 708 in its first installation area 726, a second blowing drum 712 in its second installation area 727, a particularly second alignment cylinder 709 in its third installation area 728 and a particularly second transfer drum 711 in its fourth installation area 729.
  • the third base module 704 along the transport path provided for the transport of sheets 02 has a particularly third transfer drum 711 in its first installation area 726, a particularly third impression cylinder 708 in its second installation area 727, a particularly third blowing drum 712 in its third installation area 728 and a particularly third alignment cylinder 709 in its fourth installation area 729.
  • a particularly first suction drum 713, a particularly second suction drum 713, a particularly fourth transfer drum 711 and a sprocket shaft 714 are arranged one after the other in one or more intermediate frames 738.
  • a respective screen printing form cylinder 752 is arranged to cooperate with each counter-pressure cylinder 708.
  • a respective pre-alignment device 767 is arranged to cooperate with each blowing drum 712.
  • a respective drying device 772 or curing device 772 and/or an external magnetic device 774 is arranged to cooperate with each alignment cylinder 709.
  • a respective inspection device 768 is arranged to cooperate with each suction drum 713.
  • This fifth embodiment of a screen printing unit 700 allows a first printing of a front side of sheet 02, a subsequent alignment of particles applied during this, a subsequent second printing of the front side of the sheet 02, a subsequent alignment of particles applied during this, a first printing of a back side of the sheet 02, a subsequent alignment of particles applied during this and a subsequent inspection of the front and back sides of the sheet 02.
  • the screen printing unit 700 is preceded by a sheet feeder 100, for example, in particular such that its receiving drum 104 forms the first transfer point 731 with the impression cylinder 708 of the first base module 704.
  • the screen printing unit 700 is followed by a sheet delivery 900, for example, in particular such that the sprocket shaft 714 in the sheet conveyor system 904 of the sheet delivery 900 is integrated. (As an example, a sheet-fed printing machine with such a screen printing unit 700 is shown schematically in Fig. 3e shown.)
  • a sixth embodiment of such a screen printing unit 700 has two base modules 704 arranged adjacent to one another.
  • the first base module 704 along the transport path provided for the transport of sheets 02 has a first impression cylinder 708 in its first installation area 726, a first blowing drum 712 in its second installation area 727, a first alignment cylinder 709 in its third installation area 728 and a first transfer drum 711 in its fourth installation area 729.
  • the second base module 704 along the transport path provided for the transport of sheets 02 has a second transfer drum 711 in its first installation area 726, a second impression cylinder 708 in its second installation area 727, a second blowing drum 712 in its third installation area 728 and a second alignment cylinder 709 in its fourth installation area 729.
  • a particularly first suction drum 713, a particularly second suction drum 713, a particularly third transfer drum 711 and a sprocket shaft 714 are arranged one after the other in one or more intermediate frames 738.
  • a respective screen printing form cylinder 752 is arranged to cooperate with each impression cylinder 708.
  • a respective pre-alignment device 767 is arranged to cooperate with each blowing drum 712.
  • a respective drying device 772 or curing device 772 and/or an external magnetic device 774 is arranged to cooperate with each alignment cylinder 709.
  • a respective inspection device 768 is arranged to cooperate with each suction drum 713.
  • the screen printing unit 700 is preceded, for example, by a sheet feeder 100, in particular such that its receiving drum 104 forms the first transfer point 731 with the impression cylinder 708 of the first base module 704.
  • the screen printing unit 700 is followed, for example, by a sheet delivery 900, in particular such that the sprocket shaft 714 is integrated into the sheet conveyor system 904 of the sheet delivery 900.
  • a sheet-fed printing machine with such a screen printing unit 700 is shown schematically in Fig. 3f shown.
  • a seventh exemplary embodiment of such a screen printing unit 700 has two base modules 704 arranged adjacent to one another.
  • the first base module 704 along the transport path provided for the transport of sheets 02 has a first impression cylinder 708 in its first installation area 726, a first blowing drum 712 in its second installation area 727, a first alignment cylinder 709 in its third installation area 728 and a first transfer drum 711 in its fourth installation area 729.
  • the second base module 704 along the transport path provided for the transport of sheets 02 has a second impression cylinder 708 in its first installation area 726, a second blowing drum 712 in its second installation area 727, a second alignment cylinder 709 in its third installation area 728 and a second transfer drum 711 in its fourth installation area 729.
  • a suction drum 713 and a sprocket shaft 714 are arranged one after the other in one or more intermediate frames 738.
  • a respective screen printing form cylinder 752 is arranged to cooperate with each impression cylinder 708.
  • a respective Pre-alignment device 767 is arranged in cooperation with each alignment cylinder 709.
  • a respective drying device 772 or curing device 772 and/or an external magnetic device 774 is arranged in cooperation with each alignment cylinder 709.
  • an inspection device 768 is arranged in cooperation with the suction drum 713.
  • a sheet feeder 100 is arranged in front of the screen printing unit 700, in particular in such a way that its acceptance drum 104 forms the first transfer point 731 with the impression cylinder 708 of the first base module 704.
  • a sheet delivery 900 is arranged downstream of the screen printing unit 700, in particular such that the sprocket shaft 714 is integrated into the sheet conveyor system 904 of the sheet delivery 900. (By way of example, a sheet-fed printing machine with such a screen printing unit 700 is shown schematically in Fig. 3g shown.)
  • An eighth embodiment of such a screen printing unit 700 has a base module 704.
  • the base module 704 has a counter-pressure cylinder 708 in its first installation area 726, a blowing drum 712 in its second installation area 727, a first alignment cylinder 709 in its third installation area 728 and a transfer drum 711 in its fourth installation area 729.
  • a suction drum 713 and a sprocket shaft 714 are then arranged one after the other in one or more intermediate frames 738.
  • a screen printing form cylinder 752 is preferably arranged to cooperate with the counter-pressure cylinder 708.
  • a pre-alignment device 767 is preferably arranged to cooperate with the blowing drum 712.
  • a drying device 772 or curing device 772 and/or an external magnetic device 774 are preferably arranged to cooperate with the alignment cylinder 709.
  • the suction drum 713 is a Inspection device 768 are arranged in cooperation.
  • This eighth embodiment of a screen printing unit 700 allows printing on a front side of sheets 02, subsequent alignment of particles applied in the process and subsequent inspection of the front side of sheets 02.
  • a sheet feeder 100 is placed in front of the screen printing unit 700, in particular such that its receiving drum 104 forms the first transfer point 731 with the impression cylinder 708 of the first base module 704.
  • a sheet delivery 900 is placed downstream of the screen printing unit 700, in particular such that the sprocket shaft 714 is integrated into the sheet conveyor system 904 of the sheet delivery 900.
  • a sheet-fed printing machine with such a screen printing unit 700 is shown schematically in Fig. 3h shown.
  • a ninth embodiment of such a screen printing unit 700 has a base module 704.
  • the base module 704 has a counter-pressure cylinder 708 in its first installation area 726, a blowing drum 712 in its second installation area 727, a first alignment cylinder 709 in its third installation area 728 and a sprocket shaft 714 in its fourth installation area 729.
  • the alignment cylinder 709 preferably has suction devices.
  • a screen printing form cylinder 752 is preferably arranged to cooperate with the counter-pressure cylinder 708.
  • a pre-alignment device 767 is preferably arranged to cooperate with the blowing drum 712.
  • a drying device 772 or curing device 772 and/or an external magnetic device 774 and an inspection device 768 are preferably arranged to cooperate with the alignment cylinder 709.
  • This ninth embodiment of a screen printing unit 700 allows printing on a front side of sheet 02, subsequent alignment of particles applied in the process and subsequent inspection of the front side of the sheet 02. It preferably offers the same functionality as the eighth embodiment, but with a smaller space requirement.
  • a sheet feeder 100 is placed in front of the screen printing unit 700, in particular such that its receiving drum 104 is connected to the Impression cylinder 708 of the first base module 704 forms its first transfer point 731.
  • a sheet delivery 900 is arranged downstream of the screen printing unit 700, in particular such that the sprocket shaft 714 is integrated into the sheet conveyor system 904 of the sheet delivery 900. (By way of example, a sheet-fed printing machine with such a screen printing unit 700 is shown schematically in Fig. 3i shown.)
  • the sheet processing machine 01 preferably additionally has at least one further printing unit 200; 500; 600, which is more preferably designed as a simultaneous sheet printing unit 200 and/or which is designed as a sheet numbering printing unit 500 and/or which is designed as a flexographic printing unit 600.
  • at least one fixing element provided in particular for holding sheets 02, of at least one and preferably each sheet transport cylinder 201; 202; 501; 502; 601; 602 of this at least one further printing unit 200; 500; 600 has an inner contact surface and an outer contact surface, which are arranged to cooperate in order to clamp sheets 02.
  • this inner contact surface is at least partially at a distance from a rotation axis 216; 217; 521; 522; 621; 622 of this sheet transport cylinder 201; 202; 501; 502; 601; 602 which corresponds to the base radius R0 or an integer multiple of the base radius R0, in particular twice the base radius R0.
  • the sheet processing machine 01 preferably has at least one sheet-fed printing unit 200 designed for a simultaneous printing process.
  • a sheet-fed printing unit 200 is also called a sheet-fed simultaneous printing unit 200 or sheet-fed collective printing unit 200.
  • the simultaneous printing process is characterized in particular by the fact that printing ink originating from different form cylinders 203; 204; 206; 207 is first collected on a collecting cylinder 201; 202 preferably designed as a transfer cylinder 201; 202 and is then simultaneously transferred to a respective sheet 02. This transfer preferably takes place directly from the collecting cylinder 202 which is then preferably also designed as a transfer cylinder 201; 202.
  • the respective transfer cylinder 201; 202 preferably works together with a respective impression cylinder 201; 202.
  • a transfer cylinder 201; 202 and an impression cylinder 201; 202 together form a printing point 218, wherein the sheets 02 are preferably transported through this printing point 218 and/or wherein the sheets 02 are preferably provided with printing ink in this printing point 218, in particular with the collected printing inks.
  • two cylinders 201; 202 work together in such a way that each is designed as a transfer cylinder 201; 202 and at the same time acts as an impression cylinder 201; 202 for the other of these two cylinders 201; 202.
  • the simultaneous sheet printing unit 200 is then also referred to as a simultaneous double printing unit 200, for example, and is used in particular for the simultaneous printing of a respective sheet 02 on two sides.
  • a simultaneous double printing unit 200 Preferably, only one of these collecting cylinders 201; 202 is designed as a sheet transport cylinder 201; 202.
  • the at least one simultaneous sheet-fed printing unit 200 has at least two forme cylinders 203; 204; 206; 207.
  • each respective forme cylinder 203; 204; 206; 207 is arranged so as to be in direct contact with a respective impression cylinder 201; 202 and/or to interact directly with it and/or to be able to interact with it.
  • the simultaneous sheet-fed printing unit 200 has four forme cylinders 203; 204; 206; 207, of which two are more preferably in direct contact with a particularly first common collecting cylinder 201; 202 and/or to interact directly with it and/or to be able to interact with it, and of which two others are more preferably in direct contact with the other, particularly second common collecting cylinder 201; 202 and/or to interact directly with it and/or to be able to interact with it.
  • Different printing forms in particular printing plates, can be arranged on the respective forme cylinder 203; 204; 206; 207 of the sheet-fed simultaneous printing unit 200, for example, depending on the print image to be printed.
  • at least one planographic printing form can be arranged on the respective forme cylinder 203; 204; 206; 207.
  • at least one letterset printing form can be arranged on the respective forme cylinder 203; 204; 206; 207.
  • a letterset printing form has only a relatively low height of the ink-transferring areas compared to the rest of the printing plate and is comparable to a letterpress form in terms of its operating principle.
  • at least one inking unit 227 is arranged per forme cylinder 203; 204; 206; 207.
  • the sheet-fed simultaneous printing unit 200 is preferably characterized in that it has a first collecting cylinder 201 and a second collecting cylinder 202, which are arranged to be in direct contact with one another and/or to interact directly with one another and which each have a rotation axis 216; 217, and in that an axis plane E1 is a plane E1 which contains both the rotation axis 216 of the first collecting cylinder 201 and the rotation axis 217 of the second collecting cylinder 202, and in that a reference plane E2 is a plane E2 which contains at least one rotation axis 216; 217 of such a collecting cylinder 201; 202 and which has a horizontal surface normal.
  • These two collecting cylinders 201; 202 are preferably arranged at least during a processing operation, in particular a printing operation, such that the intersection angle between the axis plane E1 on the one hand and the reference plane E2 on the other hand is at most 45°, more preferably at most 30°, even more preferably at most 15°, even more preferably at most 10°, even more preferably at most 5°, even more preferably at most 2°, even more preferably at most 1°, even more preferably at most 0.5° and even more preferably exactly 0°.
  • This inner contact surface is at least partially at a distance from a rotation axis 216; 217 of this collecting cylinder 201; 202 designed as a sheet transport cylinder 201; 202, which corresponds to the base radius R0 or an integer multiple of the base radius R0, in particular twice the base radius R0.
  • the sheet processing machine 01 preferably has at least one sheet-fed printing unit 500 designed for a letterpress process.
  • a sheet-fed printing unit 500 is also called a letterpress unit 500.
  • the letterpress process is used, for example, as a numbering printing process.
  • the following provides information on a sheet-fed numbering printing unit 500, but this also applies to general letterpress processes.
  • the sheet processing machine 01 preferably has at least one sheet-fed printing unit 500 designed for a numbering printing process.
  • Such a sheet-fed printing unit 500 is also called a sheet-fed numbering printing unit 500.
  • the sheet-fed numbering printing unit 500 preferably has at least one impression cylinder 501; 502, which is preferably designed as a respective sheet transport cylinder 501; 502.
  • the sheet-fed numbering printing unit 500 has two cylinders 501; 502 of the first type, which are further preferably designed as a respective impression cylinder 501; 502 and/or as a respective sheet transport cylinder 501; 502 and/or which are in direct contact with one another and/or are arranged to interact directly with one another and/or to be capable of interacting directly with one another.
  • the respective numbering of the sheets 02 and/or the use of the sheets 02, in particular designed as securities takes place by means of a letterpress process, in particular using at least one numbering forme cylinder 503; 504; 506; 507, which further preferably has at least one numbering unit.
  • individual numbering units are used, of which more preferably several are arranged on a common numbering forme cylinder 503; 504; 506; 507.
  • the respective numbering forme cylinder 503; 504; 506; 507 has several numbering units that are arranged one behind the other in its circumferential direction on the respective numbering forme cylinder 503; 504; 506; 507, for example at least two or at least four or at least eight or at least twelve, and/or the respective numbering forme cylinder 503; 504; 506; 507 has several numbering units that are arranged next to one another in the transverse direction A on the respective numbering forme cylinder 503; 504; 506; 507.
  • the respective at least one numbering unit has, for example, a counter with several symbol rollers, wherein the symbol rollers each have offset, in particular raised areas in the form of symbols such as numbers and/or letters.
  • the outer symbols of the counter as a whole preferably result in a unique serial number.
  • at least one inking unit 518 is arranged per numbering forme cylinder 503; 504; 506; 507.
  • the at least one inking unit 518 preferably provides the outer symbols of the numbering units of this respective numbering forme cylinder 503; 504; 506; 507 with printing ink when they come into contact.
  • the respective numbering forme cylinder 503; 504; 506; 507 is rotated further and comes into contact with the respective sheet 02 and transfers the printing ink in the form of the symbol to the sheet 02.
  • the combination of symbols is changed until the next contact of this numbering unit with the inking unit 518 in order to be able to transfer a different marking at the next contact with the corresponding sheet 02.
  • each respective numbering forme cylinder 503; 504; 506; 507 is arranged to be in direct contact with and/or to interact directly and/or to be capable of interacting directly with a respective impression cylinder 501; 502.
  • Impression cylinders 501; 502 of the sheet numbering printing unit 500 are also designed as sheet transport cylinders 501; 502, regardless of their number.
  • This inner contact surface is at least partially at a distance from a rotation axis 521; 522 of this sheet transport cylinder 501; 502, which corresponds to the base radius R0 or an integer multiple of the base radius R0, in particular twice the base radius R0.
  • the sheet processing machine 01 preferably has at least one sheet processing unit 600 and/or sheet printing unit 600 designed for a flexographic printing process.
  • a sheet printing unit 600 is also called a flexographic printing unit 600.
  • the flexographic printing process is used, for example, as a coating process, in particular a varnishing process.
  • the flexographic printing unit 600 preferably has at least one impression cylinder 601; 602, which is further preferably designed as a respective sheet transport cylinder 601; 602.
  • the flexographic printing unit 600 further preferably has two impression cylinders 601; 602, which are further preferably designed as a respective sheet transport cylinder 601; 602 and/or which are directly are arranged in contact with one another and/or interacting directly with one another and/or capable of interacting directly with one another.
  • impression cylinders 601; 602 of the flexographic printing unit 600 are also designed as sheet transport cylinders 601; 602, in particular regardless of their number.
  • the flexo printing unit 600 preferably has at least one flexo forme cylinder 603; 604; 606; 607.
  • at least one inking unit 618 is arranged for each flexo forme cylinder 603; 604; 606; 607.
  • a flexo forme cylinder 603; 604; 606; 607 is to be understood in particular as a forme cylinder 603; 604; 606; 607 provided for a flexo printing process and/or is to be understood in particular as a forme cylinder 603; 604; 606; 607 which is designed to carry at least one preferably exchangeable flexo printing form, in particular on its outer surface.
  • each respective flexo forme cylinder 603; 604; 606; 607 is provided with a respective impression cylinder 601; 602 arranged in direct contact and/or directly interacting and/or capable of directly interacting.
  • This inner contact surface is at least partially at a distance from a rotation axis 621; 622 of this sheet transport cylinder 601; 602, which corresponds to the base radius R0 or an integer multiple of the base radius R0, in particular twice the base radius R0.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Screen Printers (AREA)
  • Rotary Presses (AREA)

Claims (12)

  1. Unité d'impression de feuilles (700), dans laquelle l'unité d'impression de feuilles (700) est conçue en tant qu'unité de sérigraphie (700) et présente au moins un cylindre de forme de sérigraphie (752) et au moins un cylindre de contrepression (708) coopérant avec lui et dans laquelle l'unité d'impression de feuilles (700) présente au moins un châssis (701) qui présente au moins deux parois latérales de châssis (702; 703) qui sont agencées de façon opposée l'une à l'autre dans une direction transversale (A) et dans laquelle l'unité de sérigraphie (700) présente au moins un premier module de base (704) et au moins un deuxième module de base (704) et dans laquelle chaque module de base (704) présente respectivement deux parois latérales de base (706; 707) respectivement stationnaires et en une seule pièce qui font respectivement partie d'une paroi latérale de châssis (702; 703) respective et dans laquelle le module de base (704) respectif présente respectivement quatre zones de montage (726; 727; 728; 729) pour des corps de transport en rotation (708; 709; 711; 712; 713; 714) et dans laquelle la position relative des quatre zones de montage (726; 727; 728; 729) du premier module de base (704) les unes par rapport aux autres coïncide avec la position relative des quatre zones de montage (726; 727; 728; 729) du deuxième module de base (704) les unes par rapport aux autres et dans laquelle la première zone de montage (726) respective le long d'un chemin de transport prévu pour un transport de feuilles (02) du module de base (704) respectif et la deuxième zone de montage (727), du module de base respectif, respective le long de ce chemin de transport forment un groupe de sélection respectif du module de base (704) respectif et dans laquelle un cylindre de contrepression (708) coopérant avec un cylindre de forme de sérigraphie (752) est agencé dans exactement l'une des zones de montage (726; 727) du groupe de sélection du premier module de base (704) et dans laquelle un corps de transport en rotation (708; 709; 711; 712; 713; 714) respectif est agencé dans chacune des au moins quatre zones de montage (726; 727; 728; 729) des deux modules de base (704) et dans laquelle dans au moins une zone de montage (726; 727; 728; 729) du premier module de base (704) est agencé un corps de transport en rotation (708; 709; 711; 712; 713; 714) fonctionnellement autre que celui dans une zone de montage (726; 727; 728; 729) du deuxième module de base (704) correspondante en ce qui concerne sa position de montage.
  2. Unité d'impression de feuilles (700) selon la revendication 1, caractérisée en ce que dans une première zone de montage (726), le long de ce chemin de transport, du premier module de base (704) est agencé un corps de transport en rotation (708; 709; 711; 712; 713; 714) fonctionnellement autre que celui dans une première zone de montage (726), le long de ce chemin de transport, du deuxième module de base (704) et/ou en ce que dans une deuxième zone de montage (727), le long de ce chemin de transport, du premier module de base (704) est agencé un corps de transport en rotation (708; 709; 711; 712; 713; 714) fonctionnellement autre que celui dans une deuxième zone de montage (727), le long de ce chemin de transport, du deuxième module de base (704) et/ou en ce que dans une troisième zone de montage (728), le long de ce chemin de transport, du premier module de base (704) est agencé un corps de transport en rotation (708; 709; 711; 712; 713; 714) fonctionnellement autre que celui dans une troisième zone de montage (728), le long de ce chemin de transport, du deuxième module de base (704) et/ou en ce que dans une quatrième zone de montage (729), le long de ce chemin de transport, du premier module de base (704) est agencé un corps de transport en rotation (708; 709; 711; 712; 713; 714) fonctionnellement autre que celui dans une quatrième zone de montage (729), le long de ce chemin de transport, du deuxième module de base (704).
  3. Unité d'impression de feuilles (700) selon la revendication 1 ou 2, caractérisée en ce que dans exactement l'une des zones de montage (726; 727) du groupe de sélection du deuxième module de base (704) est agencé un cylindre de contrepression (708) coopérant avec un cylindre de forme de sérigraphie (752).
  4. Unité d'impression de feuilles (700) selon la revendication 3, caractérisée en ce que le cylindre de contrepression (708) agencé dans le premier module de base (704) est agencé dans une première zone de montage (726) du premier module de base (704) et le cylindre de contrepression (708) agencé dans le deuxième module de base (704) est agencé dans une première zone de montage (726) du deuxième module de base (704).
  5. Unité d'impression de feuilles (700) selon la revendication 3, caractérisée en ce que le cylindre de contrepression (708) agencé dans le premier module de base (704) est agencé dans une première zone de montage (726) du premier module de base (704) et le cylindre de contrepression (708) agencé dans le deuxième module de base (704) est agencé dans une deuxième zone de montage (727) du deuxième module de base (704).
  6. Unité d'impression de feuilles (700) selon la revendication 1 ou 2 ou 3 ou 4 ou 5, caractérisée en ce que dans une zone de montage (726; 727; 728; 729) du premier module de base (704) est agencé un cylindre d'alignement (709) qui dans la zone de sa périphérie extérieure présente une pluralité d'éléments provoquant un champ magnétique et/ou en ce que dans une zone de montage (726; 727; 728; 729) du deuxième module de base (704) est agencé un cylindre d'alignement (709) qui dans la zone de sa périphérie extérieure présente une pluralité d'éléments provoquant un champ magnétique.
  7. Unité d'impression de feuilles (700) selon la revendication 1 ou 2 ou 3 ou 4 ou 5 ou 6, caractérisée en ce que dans une zone de montage (726; 727; 728; 729) du premier module de base (704) est agencé un tambour de soufflage (712) et/ou en ce que dans une zone de montage (726; 727; 728; 729) du deuxième module de base (704) est agencé un tambour de soufflage (712).
  8. Unité d'impression de feuilles (700) selon la revendication 1 ou 2 ou 3 ou 4 ou 5 ou 6 ou 7, caractérisée en ce qu'une table de cylindre (741) du cylindre de contrepression (708) présente une surface d'appui (744) pour des feuilles (02) qui présente au moins une section de contrepression (746) avec un rayon de table (R1) constant qui s'étend selon un angle d'au moins 170° autour de l'axe de rotation (716) du cylindre de contrepression (708) et en ce que le cylindre de forme de sérigraphie (752) présente un rayon d'écran (R2) effectif et en ce que le rayon d'écran (R2) effectif est plus petit que le rayon de table (R1) et en ce que le rayon d'écran (R2) effectif est plus grand que la moitié du rayon de table (R1).
  9. Unité d'impression de feuilles (700) selon la revendication 1 ou 2 ou 3 ou 4 ou 5 ou 6 ou 7 ou 8, caractérisée en ce que l'unité d'impression de feuilles (700) présente au moins un autre corps de transport en rotation (709; 711; 712; 713) et en ce qu'un organe de fixation (743) du cylindre de contrepression (708) présente une surface de contact intérieure (748) et une surface de contact extérieure (749) qui sont agencées en coopération pour enserrer des feuilles (02) et en ce que cette surface de contact intérieure (748) présente au moins partiellement une distance, depuis un axe de rotation (716) du cylindre de contrepression (708), qui correspond à un rayon de base (R0) et en ce qu'une table de cylindre (741) du cylindre de contrepression (708) présente une surface d'appui (744) pour des feuilles (02) qui présente au moins une section de contrepression (746) avec un rayon de table (R1) constant qui s'étend selon un angle d'au moins 170° autour de l'axe de rotation (716) du cylindre de contrepression (708) et en ce que le rayon de table (R1) est plus grand que le rayon de base (R0) et en ce qu'un organe de fixation du au moins un autre corps de transport en rotation (709; 711; 712; 713) présente une surface de contact intérieure et une surface de contact extérieure qui sont agencées en coopération pour enserrer des feuilles (02) et en ce que cette surface de contact intérieure présente au moins partiellement une distance, depuis un axe de rotation (717; 718; 719; 721) de cet autre corps de transport en rotation (709; 711; 712; 713), qui correspond au rayon de base (R0).
  10. Unité d'impression de feuilles selon la revendication 8 ou 9, caractérisée en ce que l'unité de sérigraphie (700) présente au moins un autre corps de transport en rotation (709; 711; 712; 713) formant, ensemble avec un cylindre de contrepression (708), un point de transmission (731; 732; 733) et en ce qu'un organe de fixation du au moins un autre corps de transport en rotation (709; 711; 712; 713) présente une surface de contact intérieure et une surface de contact extérieure qui sont agencées en coopération pour enserrer des feuilles (02) et en ce que cette surface de contact intérieure présente au moins partiellement une distance, depuis un axe de rotation (717; 718; 719; 721) de cet autre corps de transport en rotation (709; 711; 712; 713), qui correspond à un rayon de base (R0) et en ce que le rayon d'écran (R2) effectif est plus petit que le rayon de base (R0) et en ce que le rayon d'écran (R2) effectif est plus grand que la moitié du rayon de base (R0).
  11. Machine d'impression de feuilles (01), dans laquelle la machine d'impression de feuilles (01) présente au moins une unité d'impression de feuilles (700) selon la revendication 1 ou 2 ou 3 ou 4 ou 5 ou 6 ou 7 ou 8 ou 9 ou 10, caractérisée en ce que la machine d'impression de feuilles (01) présente en outre au moins une autre unité d'impression (200; 500; 600) qui est conçue en tant qu'unité d'impression simultanée de feuilles (200) et/ou qui est conçue en tant qu'unité d'impression de numérotation de feuilles (500) et/ou qui est conçue en tant qu'unité d'impression flexographique (600).
  12. Machine d'impression de feuilles selon la revendication 11, caractérisée en ce qu'un organe de fixation (743) du cylindre de contrepression (708) présente une surface de contact intérieure (748) et une surface de contact extérieure (749) qui sont agencées en coopération pour enserrer des feuilles (02) et en ce que cette surface de contact intérieure (748) présente au moins partiellement une distance, depuis un axe de rotation (716) du cylindre de contrepression (708), qui correspond à un rayon de base (R0) et en ce qu'un rayon de table (R1) du cylindre de contrepression (708) respectif est plus grand que le rayon de base (R0) et en ce qu'au moins un organe de fixation d'au moins un cylindre de transport de feuilles (201; 202; 501; 502; 601; 602) de cette au moins une autre unité d'impression (200; 500; 600) présente une surface de contact intérieure et une surface de contact extérieure qui sont agencées en coopération pour enserrer des feuilles (02) et en ce que cette surface de contact intérieure présente au moins partiellement une distance, depuis un axe de rotation (216; 217; 516; 517; 616; 617) de ce cylindre de transport de feuilles (201; 202; 501; 502; 601; 602), qui correspond au rayon de base (R0) ou à un multiple en nombre entier du rayon de base (R0), en particulier au double du rayon de base (R0).
EP22709283.0A 2021-03-09 2022-02-15 Unité d'impression à feuilles se présentant sous la forme d'une unité de sérigraphie et comportant deux modules de base Active EP4221983B1 (fr)

Applications Claiming Priority (2)

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DE102021105640.3A DE102021105640A1 (de) 2021-03-09 2021-03-09 Siebdruckeinheit mit zwei Basismodulen
PCT/EP2022/053579 WO2022189100A1 (fr) 2021-03-09 2022-02-15 Unité d'impression à feuilles se présentant sous la forme d'une unité de sérigraphie et comportant deux modules de base

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EP4221983A1 EP4221983A1 (fr) 2023-08-09
EP4221983B1 true EP4221983B1 (fr) 2024-04-24

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US (1) US11975527B2 (fr)
EP (1) EP4221983B1 (fr)
JP (1) JP2023547560A (fr)
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WO (1) WO2022189100A1 (fr)

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US4693179A (en) 1984-12-10 1987-09-15 Lockwood Technical, Inc. Temperature controlled rotary screen printing apparatus
US5671671A (en) 1995-01-24 1997-09-30 De La Rue Giori S.A. Rotary screen printing machine for sheet printing
JP2001225444A (ja) * 2000-02-16 2001-08-21 Komori Corp 液体供給装置
WO2005000585A1 (fr) 2003-06-30 2005-01-06 Kba-Giori S.A. Machine d'impression
JP2006305788A (ja) * 2005-04-27 2006-11-09 Komori Corp 液体供給装置
JP6233799B2 (ja) * 2013-09-13 2017-11-22 株式会社小森コーポレーション ロータリースクリーン印刷装置
MX2017002501A (es) 2014-08-26 2017-05-23 Kba Notasys Sa Prensa combinada de imprimir.
JP6541209B2 (ja) 2014-10-23 2019-07-10 株式会社小森コーポレーション ロータリースクリーン印刷機
DE102015208916B4 (de) 2015-05-13 2022-03-24 Koenig & Bauer Ag Druckwerk
DE102018205882B4 (de) 2018-04-18 2021-08-05 Koenig & Bauer Ag Vorrichtung und Maschine zum Ausrichten von magnetischen oder magnetisierbaren Partikeln auf einem bahn- oder bogenförmigen Substrat
DE102018212429B4 (de) 2018-07-25 2021-12-02 Koenig & Bauer Ag Vorrichtung zum Ausrichten von magnetischen oder magnetisierbaren Partikeln, Maschine und Verfahren zur Erzeugung optisch variabler Bildelemente
PT3826852T (pt) 2018-07-25 2022-09-06 Koenig & Bauer Ag Dispositivos para alinhar partículas magnéticas ou magnetizáveis, bem como máquina para gerar elementos de imagem variáveis visualmente
DE102018122159A1 (de) * 2018-09-11 2020-03-12 Koenig & Bauer Ag Bogendruckmaschine mit Bogen-Simultandruckeinheit und Siebdruckformzylinder
DE102018122147A1 (de) 2018-09-11 2020-03-12 Koenig & Bauer Ag Bogendruckeinheit und eine Bogendruckmaschine
DE102018122146A1 (de) 2018-09-11 2020-03-12 Koenig & Bauer Ag Bogen-Simultandruckeinheit und eine Bogendruckmaschine
DE102019118568A1 (de) * 2019-07-09 2021-01-14 Koenig & Bauer Ag Bogenverarbeitende Maschine mit einer Wendeeinrichtung und Verfahren zum Fördern von Bogen

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WO2022189100A1 (fr) 2022-09-15
CN116568513A (zh) 2023-08-08
DE102021105640A1 (de) 2022-09-15
EP4221983A1 (fr) 2023-08-09
US20230391066A1 (en) 2023-12-07
US11975527B2 (en) 2024-05-07

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