DE202012000246U1 - flexographic printing - Google Patents

flexographic printing

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Publication number
DE202012000246U1
DE202012000246U1 DE201220000246 DE202012000246U DE202012000246U1 DE 202012000246 U1 DE202012000246 U1 DE 202012000246U1 DE 201220000246 DE201220000246 DE 201220000246 DE 202012000246 U DE202012000246 U DE 202012000246U DE 202012000246 U1 DE202012000246 U1 DE 202012000246U1
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DE
Germany
Prior art keywords
pressure roller
roller
machine
torque
control unit
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.)
Expired - Lifetime
Application number
DE201220000246
Other languages
German (de)
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.)
Comexi Group Industries SA
Original Assignee
Comexi Group Industries SA
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
Priority to ES201100920A priority Critical patent/ES2395183B1/en
Priority to ESP201100920 priority
Application filed by Comexi Group Industries SA filed Critical Comexi Group Industries SA
Publication of DE202012000246U1 publication Critical patent/DE202012000246U1/en
Expired - Lifetime legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F33/00Indicating, counting, warning, control or safety devices
    • B41F33/02Arrangements of indicating devices, e.g. counters
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F13/00Common details of rotary presses or machines
    • B41F13/08Cylinders
    • B41F13/24Cylinder-tripping devices; Cylinder-impression adjustments
    • B41F13/34Cylinder lifting or adjusting devices
    • B41F13/38Cylinder lifting or adjusting devices electrically or magnetically operated
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F31/00Inking arrangements or devices
    • B41F31/30Arrangements for tripping, lifting, adjusting, or removing inking rollers; Supports, bearings, or forks therefor
    • B41F31/32Lifting or adjusting devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F33/00Indicating, counting, warning, control or safety devices
    • B41F33/0072Devices for measuring the pressure between cylinders or bearer rings
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F5/00Rotary letterpress machines
    • B41F5/24Rotary letterpress machines for flexographic printing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41PINDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2213/00Arrangements for actuating or driving printing presses; Auxiliary devices or processes
    • B41P2213/10Constitutive elements of driving devices
    • B41P2213/11Motors
    • B41P2213/124Electric motors
    • B41P2213/128Linear electric motors

Abstract

A flexographic printing machine comprising: - a central platen roller (1) which can be driven to rotate, and at least one platen roller (2) and an ink roller (3) which can be rotated and linearly driven; - drive means (4, 5) to perform said drives for rotation; - means for adjusting the force, which apply at the end points of said pressure roller (2) and ink roller (3), in their radial direction, a linear movement and drive means (8, 9, 10, 11) to integrate said linear drives perform; - At least one image acquisition unit (C) for the printed material; - means for measuring the torque, which are arranged to detect the torque of at least said pressure roller (2); and - a control unit, in connection with said means for detecting the torque with said image sensing unit (C), and with said drive means (8, 9, 10, 11, 4, 5), and provided for:

Description

  • Field of engineering
  • The present invention relates to an apparatus for adjusting the pressing force using detected information about the printed image applicable to a flexographic printing machine, and a flexographic printing machine which, as usual, is provided with a plurality of printing groups arranged around a central platen roller on which the supported material to be printed and wherein each of said groups of pressure at least a pressure roller and an inking roller (also called inking roller), which color is supplied integrated, said setting is necessary to achieve a proper pressure.
  • In this field, it is known that to perform printing tasks by means of a flexographic printing machine and to achieve optimum color transfer, it is necessary to provide by adjustment a proper force between the inking roller and the printing roller and between said printing roller and the material to be printed, that is, the right force between said rollers, the inking roller and the pressure roller and between this last and the central counter-pressure roller which carries the material to be printed.
  • The correct force between the rollers of the color group (platen roller and applicator roller and between the platen roller and the central platen roller (material) is a critical factor for the correct pressure and depends, among other things, on the type of plate to be printed, the adhesive with the the cliché has been attached to the roller, the material to be printed on, the motif to be printed, etc., and therefore has to be adjusted for each new printing job.
  • Background of the invention
  • Numerous machines and methods for adjusting the compressive force in a flexographic printing press are known.
  • In the patent ES 2308716 An automatic adjustment is described by reading the printed surface and is based on the comparison of the position of each of the monochrome imprints of the different groups which are detected at different times by, at least, one sensor station. The method requires one sensor system per print group, in which one print roller is behind each other in print position during a registration process, and comprises the following steps:
    • - A single sensor station detects each received monochrome printing
    • - The correction signals for the actuator or the actuators of a pressure roller are obtained from the monochrome image of each pressure roller and from the information relating to the rotational movements of, at least, a pressure roller.
  • The mentioned patent ES 2308716 solves the problem of making a proper adjustment of the workforce, but the described method entails that no more than one color can be used simultaneously (because they are monochrome images) and this has a great waste of material and time in performing the Setting as a result.
  • In order to solve the problem of waste of material and time in the setting, various patents are found in the prior art, which try to achieve more or less precise settings with the least possible waste.
  • That's how the document beats EP 1 916 102 a setting system based on several theoretical calculations outside the machine, the value of the diameter being estimated by the shell of the pressure roll and the inking roll. From these theoretical calculations, the end positions of the positioning drives are calculated again. This process minimizes waste of material and time, but since it is a purely theoretical process, the reliability of the setting is very low, because in the printing process not only the diameter of the rolls participates, but also, and in a special way, the one to be printed Type of cliché, the color, the substrate to be printed on, etc., factors that determine the right compressive force. This method is applicable to finding the point of contact of the pressure roller and ink roller with each other and the pressure roller with the material, but not to determine the correct force between the two.
  • The patent application EP 1 018 426 discloses a flexographic printing machine in which an automatic process can be performed to adjust among each other a printing roll, an applicator roll and a counterpressure roll. The mentioned method comprises the following steps:
    • • first, and with the help of the rotary drive motor of the pressure roller, said pressure roller is brought into a slow rotation;
    • • after that, the applicator roller, which is not yet rotating, moves slowly in its radial direction against the pressure roller;
    • • As soon as the pressure roller and the applicator roller come into contact, there is a change in the torque of the rotary drive motor the pressure roller detected by an incremental encoder (of said motor);
    • The position reached by the application roller at this moment is stored by a control unit of the printing press as the zero position of said applicator roll;
    • • Thereafter, the pressure roller, which continues to rotate, is moved against the platen roller until there is a further change in the torque of its rotary drive motor;
    • The position of the pressure roller is stored in the control unit as the zero position of the pressure roller; and
    • • The path that the platen has traveled to contact the platen roller is added to the applicator roller zero position.
  • The adjustment operation according to the approach sequence according to EP 1 018 426 has drawbacks, however, because the forces acting on the surface of the roller can be very high when the rollers come into contact. Tests have shown that the clichés mounted in the printing rollers show damage already after a few automatic adjustment cycles, which were carried out according to this approaching process.
  • The patent application WO2010 / 142405 in turn discloses a flexographic printing machine which attempts to overcome the disadvantages of the application EP 1 018 426 described automatic cycle, especially those related to the damage that can occur in the surface of the cliché. The named patent application WO 2010/142405 proposes a device and a method for adjusting the rolls of a printing press which do not damage the printing roll, wherein the rotation drive of the rolls of the color group is controlled by a control unit of the printing press, which is arranged so that it with at least weakened flux (limited torque) operates one of the rotary drive motors of the rollers during the mutual adjustment.
  • According to the patent application WO 2010/142405 In order not to damage the raised areas of the platen roller during the adjustment process, the control unit reduces the torque producing current applied to the drive of the roller so that the drive undergoes field weakening and thus reduces the magnetic flux in the working area of the motor below the nominal value, whereby a reduction of the torque to the same speed is achieved in the drive. Under these conditions, when one rotary roller comes into contact with another roller, the torque and thus the force acting on the surface of the roller during contact with the rollers is very small, and thus the surfaces of the plates do not suffer any damage ,
  • Neither in the patent EP 1916102 still in both patent applications EP 1018426 and WO 2010/142405 However, the real problem of the right attitude of the worker is solved. In the above background, a zero point is detected for the contact of the platen with the material and for the contact of the rollers of the color group (applicator roll and platen) with each other, after which an approximate movement between 10 and 100 microns must be applied (see page 5, lines 20 to 23 of the application WO 2010/142405 ) to achieve the optimum workforce. This approximation between 10 and 100 microns should be considered by the operator of the machine, whereby automatically no optimal attitude of the work is reached.
  • In Scripture ES 2300209 proposes a method for the position adjustment of printing bodies in flexographic printing machines, comprising the following steps:
    • a) linear approach movement by guide arrangements of a first pressure roller to the support drum by a linear motor;
    • b) detecting that a point of contact has been reached between said first pressure roller, or a cliché attached thereto, and the laminar material supported on the support drum;
    • c) rotating the support drum, and allowing the first pressure roller to rotate, which is moved by the support drum with friction through the laminar material, or both synchronously rotate: the support drum and the first pressure roller; and
    • d) detecting the linear positions for the approach distance on said guide assemblies of the first pressure roller.
  • This method includes in step c) an action that includes friction that may cause damage to the material, or failure, and the setting depends on the reliability of the detection in the last step d).
  • The object of the present invention is to provide a device in which the optimum working force can be automatically determined, by means of a detection device for the printed image, such as a linear camera, and in which it is possible to print simultaneously with several Avoiding the dead time between the printing area and the observation area, saving on an important volume of printing material, automating the setting and avoiding the deadweight Participation of the operator and possible errors caused by this.
  • This object is achieved by a flexographic printing machine with the features of the protection claim 1.
  • Advantageous developments are the subject of the dependent claims.
  • Brief description of the invention
  • The flexographic printing machine according to the invention is equipped with a plurality of printing groups, which are arranged around a central counter-pressure roller on which the material to be printed is located, each of said pressure groups integrating at least one pressure roller and an inking roller which can be rotated by a rotary drive motor said flexographic printing machine is connected to image acquisition means, such as a linear camera or other system, which can capture an image of the print from each print group and the work or from a selected group thereof. The flexographic printing machine additionally has a control unit for detecting one or more parameters for the rotational movement of the rollers, such as the torque, the electric current consumed by said rotary drive motor, or the rotational speed.
  • The force adjustment of each of the pressure rollers with respect to the platen roller is performed by positioning motors which apply to the support axes of said pressure roller and ink roller, in its axial direction, a linear movement.
  • The machine works in two different steps.
  • In a first step, the following actions are performed:
    • - The linear movement of said pressure roller and said ink roller to said central counter-pressure roller, wherein they are actively or passively made to rotate, and monitoring their torque, and
    • - Implementation, starting from a detection of a variation of the moment, a first force adjustment between at least said pressure roller with said counter-pressure roller or between said pressure roller and the inking roller.
  • This ensures a contact position between the different rollers.
  • In a second step, a fine adjustment of the forces is performed by at least one sequence, which comprises the following actions:
    • a) carrying out a printing on a laminar material which is arranged on said central counter-pressure roller,
    • b) detecting at least one image of at least part of said printing, for example by a linear camera,
    • c) analyzing the quality of said captured image; and
    • d) varying the force exerted by the pressure roller on the central counter-pressure roller, or the force between said two rollers, by said positioning motors.
  • And the said sequence of actions a) to d) is repeated until an optimal point of force between the rollers is reached, which is determined by the optimum quality of the captured image.
  • The first step for force adjustment is performed simultaneously on multiple pressure groups and said second step may be performed per group or simultaneously, depending on the type of motif to be printed.
  • The second fine adjustment step is also performed while monitoring the drive torque of at least one of said pressure roller and ink roller.
  • During said first step for force adjustment, it has also been provided to monitor the moment of the positioning motors, and that said motors are operated in at least said first step with moment limitation (reduced torque).
  • Further features of the invention will become more apparent upon reading an embodiment, which will be described below with reference to the drawings.
  • Brief description of the drawings
  • 1 Fig. 10 is a schematic view of a flexographic printing machine for carrying out the method of this invention.
  • 2 schematically shows the participating in the adjustment process elements, according to one embodiment.
  • 3 Fig. 10 is a block diagram explaining the setting procedure.
  • Detailed description of an embodiment
  • In 2 A typical printing group of a flexographic printing machine is shown, which is provided with a central counter-pressure roller 1 is connected, wherein a pressure roller 2 and a paint roller 3 integrated, which face each other during printing and with the aid of a respective rotary drive motor 5 . 4 can be made to rotate.
  • The printing machine has means connected to a control unit (not shown) for detecting one or more parameters for the rotational movement of the rollers 2 . 3 , in particular the torque, of said rotary drive motors 4 . 5 consumed electric current, or the rotational speed (which by means of detectors 6 . 7 is obtained, such as by means of rotating converters).
  • 2 shows means for adjusting the force 8th . 9 . 10 . 11 , which are formed in this embodiment by an assembly of electric motor-spindle, and which are referred to below as positioning motors, which at the end points of the support axes of said pressure roller 2 and ink roller 3 , in its radial direction, a linear movement in approach or distance with respect to the central counter-pressure roller 1 apply.
  • The press also has image capture means C (see 1 ) for detecting visual information of the prints made by each group G1 to G8, plural groups or group set G1 to G8 of the machine.
  • The machine works for each pressure group as follows:
    in a first step, in which said pressure roller 2 and said paint roller 3 to said central counter-pressure roller 1 be moved linearly, whereby they are actively or passively made to rotate (by means of the motors 4 . 5 ), and monitoring its torque (by conventional means, such as tracking the operation of each engine) 4 . 5 consumed current), and the implementation, starting from a detection during said monitoring, a change of the moment (increase above a certain threshold), a first force adjustment between at least said pressure roller 2 with said counter-pressure roller 1 or between said pressure roller 2 and ink roller 3 thus ensuring that a contact position has been achieved between the various rollers.
  • In a second step, a fine adjustment of the forces can be carried out by one or more sequences, said sequence comprising the following actions:
    • a) performing a printing on a laminar material L, on said central counter-pressure roller 1 is arranged
    • b) detecting at least one image of at least part of said printing, for example by a linear camera C,
    • c) analyzing the quality of said captured image; and
    • d) varying the force which the pressure roller 2 on the central counter pressure roller 1 or the force between said two rollers 2 . 3 , by said positioning motors 8th . 9 . 18 . 11 ,
  • One will use one or more sequences with the mentioned actions until an optimal contact point between the pressure roller 2 and the ink roller 3 , and between the pressure roller 2 and the counter-pressure roller 1 is reached.
  • 3 clearly shows the adjustment method and it can be seen here that said first step for force adjustment can be carried out simultaneously in several pressure groups (GROUP 1 to GROUP n), which is an important saving because successive printing of the different groups is avoided, as well the dead time between the pressure groups and the observation area is avoided, saving many meters of laminar test material.
  • On the other hand, said second step per group is feasible and advantageous with a monitoring of the drive torque of at least one of said pressure roller 2 and ink roller 3 ,
  • According to further features:
    • • in the said first step for the adjustment is provided, as well as the moment of the positioning motors 8th . 9 . 10 . 11 to monitor;
    • In said first step, the positioning motors 8th . 9 . 10 . 11 work with moment limitation (reduced moment);
    • • the linear movements of the rollers 2 . 3 alternatively, operate the positioning motors 8th . 11 to an end point of a carrier axis of the rolls 2 . 3 or the engines 9 . 10 on the other endpoint or all of the positioning motors 8th . 9 , 10y 11 , simultaneously on both endpoints of both rolls 2 . 3 carried out.
  • As indicated, the invention proposes a flexographic printing machine having a conventional general structure, and in 1 is shown, consisting of a central counter-pressure roller 1 on which a laminar material L passes, moved by a coil from a development element D. and wound to form a coil of printed material by means of a rewinder R.
  • The proposed flexographic printing machine is connected to a linear camera C or other system for capturing printed images, and contains in particular a control unit (not shown) in connection with said means for detecting the moment and with said system for capturing images C which is intended to perform the said first and second step of the declared method.
  • One skilled in the art will be able to incorporate changes and adaptations in the described embodiments without departing from the scope of the invention as defined in the appended claims.
  • QUOTES INCLUDE IN THE DESCRIPTION
  • This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
  • Cited patent literature
    • ES 2308716 [0005, 0006]
    • EP 1916102 [0008, 0013]
    • EP 1018426 [0009, 0010, 0011, 0013]
    • WO 2010/142405 [0011, 0011, 0012, 0013, 0013]
    • ES 2300209 [0014]

Claims (12)

  1. Flexographic printing machine, comprising: - a central counterpressure roller ( 1 ), which can be driven for rotation, and at least one pressure roller ( 2 ) and a paint roller ( 3 ), which can be rotated and linearly driven; Drive means ( 4 . 5 ) to perform said drives for rotation; - means for adjusting the force which at the end points of said pressure roller ( 2 ) and ink roller ( 3 ), in their radial direction, apply a linear motion and drive means ( 8th . 9 . 10 . 11 ) to perform the said linear drives; - At least one image acquisition unit (C) for the printed material; - means for measuring the torque, which are arranged to the torque of at least said pressure roller ( 2 ) to detect; and - a control unit, in connection with said means for detecting the torque with said image detection unit (C), and with said drive means ( 8th . 9 . 10 . 11 ; 4 . 5 ), and provided for: - in a first step: - said drive means ( 8th . 9 . 10 . 11 ; 4 . 5 ) for linear movement of said pressure roller ( 2 ) and said ink roller ( 3 ) to said central counter-pressure roller ( 1 ), wherein they are actively or passively rotated, and monitoring the torque, and - controlling said means for adjusting the force, based on a detection of a variation of the torque, a first force adjustment between at least said pressure roller ( 2 ) with said central counter-pressure roller ( 1 ) or between said pressure roller ( 2 ) and the ink roller ( 3 ) perform; and - in a second step, a fine adjustment of the forces by at least one sequence, which comprises the following actions: a) carrying out a printing on a laminar material (L), which on said central counter-pressure roller ( 1 b) detecting, by the control of said image capture unit, at least one image of at least part of said print, c) analyzing the quality of said captured image; and d) controlling said means for adjusting the force to vary the force exerted by the pressure roller ( 2 ) on the central counter-pressure roller ( 1 ) or the force between said two rollers, the pressure roller ( 2 ) and the ink roller ( 3 ), by the control of said drive means ( 8th . 9 . 10 . 11 ); and repeating the sequence of actions a) to d) until an optimum point of force between the rolls is reached.
  2. A machine according to claim 1, characterized in that said control unit is adapted to perform said first step for force adjustment simultaneously on a plurality of pressure groups (G1 to G8) and said second step per group.
  3. Machine according to claim 1, characterized in that said control unit is adapted to perform said first step for force adjustment simultaneously on a plurality of pressure groups (G1 to G8) and said second step also simultaneously on a plurality of pressure groups (G1 to G8).
  4. Machine according to claim 1, characterized in that said control unit is adapted to perform said second fine adjustment step by monitoring the drive torque of at least one of said pressure rollers (10). 2 ) and ink roller ( 3 ).
  5. Machine according to one of the preceding claims, characterized in that the said drive means ( 8th . 9 . 10 . 11 ) Positioning motors include.
  6. Machine according to claim 5, characterized in that said control unit is adapted to perform said first step, in addition to monitoring the moment of the positioning motors (FIG. 8th . 9 . 10 . 11 ).
  7. Machine according to claim 6, characterized in that said positioning motors ( 8th . 9 . 10 . 11 ) operate in at least said first step with moment limitation or reduced moment.
  8. A machine as claimed in claim 5 when dependent on claim 1, characterized in that said control unit is adapted to operate said linear movements alternatively by operating said positioning motors ( 8th . 9 . 10 . 11 ) to an end point of a carrier axis of the rolls ( 2 . 3 ), to the other endpoint or both at the same time.
  9. Machine according to claim 1, characterized in that said control unit is adapted to apply said first step using a variable tangential speed to that on the central counter-pressure roller ( 1 ) and on the pressure roller ( 2 ) and ink roller ( 3 ).
  10. Machine according to claim 9, characterized in that said control unit is adapted to perform said first step Application of a tangential difference in speed between that on the central counter-pressure roller ( 1 ) carried material and the pressure roller ( 2 ) and ink roller ( 3 ).
  11. Machine according to claim 10, characterized in that said control unit is adapted to perform said first step by applying a tangential difference in speed between said pressure roller (10). 2 ) and the ink roller ( 3 ).
  12. Flexographic printing machine according to one of the preceding claims, characterized by means for measuring the torque, which are arranged to the torque of the pressure roller ( 2 ) and the ink roller ( 3 ) to detect.
DE201220000246 2011-08-12 2012-01-12 flexographic printing Expired - Lifetime DE202012000246U1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
ES201100920A ES2395183B1 (en) 2011-08-12 2011-08-12 Method for pressure adjustment in a flexographic printer machine and flexographic printer machine for implementation.
ESP201100920 2011-08-12

Publications (1)

Publication Number Publication Date
DE202012000246U1 true DE202012000246U1 (en) 2012-05-02

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DE201220000246 Expired - Lifetime DE202012000246U1 (en) 2011-08-12 2012-01-12 flexographic printing

Country Status (3)

Country Link
DE (1) DE202012000246U1 (en)
ES (1) ES2395183B1 (en)
WO (1) WO2013024186A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014101433A1 (en) * 2014-02-05 2015-08-06 CONPRINTA GmbH & Co. KG Printing unit for a flexographic printing machine and method for its operation
DE102016215748A1 (en) 2016-08-23 2018-03-01 Robert Bosch Gmbh Flexographic printing machine with different peripheral speeds on the anilox roller and the plate cylinder

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9440425B2 (en) 2012-05-02 2016-09-13 Advanced Vision Technology (Avt) Ltd. Methods and systems for setting the pressure of the cylinders of the printing press without requiring special targets

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1018426A1 (en) 1999-01-07 2000-07-12 FISCHER & KRECKE GMBH & CO. Method for setting the pressure between two cylinders of a printing machine
EP1916102A1 (en) 2006-10-23 2008-04-30 Fischer & Krecke GmbH & Co. KG Method, mounting device and control unit of adjusting a roller in a rotary printing press
ES2300209A1 (en) 2006-11-22 2008-06-01 Comexi, S.A. Method for positional adjustment of printer bodies in flexographic printing machines
ES2308716T3 (en) 2005-02-03 2008-12-01 WINDMOLLER & HOLSCHER KG Registration process.
WO2010142405A2 (en) 2009-06-10 2010-12-16 Windmöller & Hölscher Kg Device and method for setting at least two cylinders of a printing machine against each other

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Publication number Priority date Publication date Assignee Title
CH691225A8 (en) * 1996-02-09 2001-08-15 Bobst Sa Rotary printing machine.
ES2166580T3 (en) * 1998-08-29 2002-04-16 Fischer & Krecke Gmbh & Co Procedure and device for the prevention of collisions in printing machines.
DE10145957B4 (en) * 2001-03-27 2014-09-25 Windmöller & Hölscher Kg Apparatus and method for adjusting the printed image in a flexographic printing machine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1018426A1 (en) 1999-01-07 2000-07-12 FISCHER & KRECKE GMBH & CO. Method for setting the pressure between two cylinders of a printing machine
ES2308716T3 (en) 2005-02-03 2008-12-01 WINDMOLLER & HOLSCHER KG Registration process.
EP1916102A1 (en) 2006-10-23 2008-04-30 Fischer & Krecke GmbH & Co. KG Method, mounting device and control unit of adjusting a roller in a rotary printing press
ES2300209A1 (en) 2006-11-22 2008-06-01 Comexi, S.A. Method for positional adjustment of printer bodies in flexographic printing machines
WO2010142405A2 (en) 2009-06-10 2010-12-16 Windmöller & Hölscher Kg Device and method for setting at least two cylinders of a printing machine against each other

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014101433A1 (en) * 2014-02-05 2015-08-06 CONPRINTA GmbH & Co. KG Printing unit for a flexographic printing machine and method for its operation
DE102014101433B4 (en) * 2014-02-05 2016-03-24 CONPRINTA GmbH & Co. KG Printing unit for a flexographic printing machine and method for its operation
DE102016215748A1 (en) 2016-08-23 2018-03-01 Robert Bosch Gmbh Flexographic printing machine with different peripheral speeds on the anilox roller and the plate cylinder

Also Published As

Publication number Publication date
WO2013024186A1 (en) 2013-02-21
ES2395183A1 (en) 2013-02-08
ES2395183B1 (en) 2013-11-28

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