EP2440408A2 - Device and method for setting at least two cylinders of a printing machine against each other - Google Patents
Device and method for setting at least two cylinders of a printing machine against each otherInfo
- Publication number
- EP2440408A2 EP2440408A2 EP10755086A EP10755086A EP2440408A2 EP 2440408 A2 EP2440408 A2 EP 2440408A2 EP 10755086 A EP10755086 A EP 10755086A EP 10755086 A EP10755086 A EP 10755086A EP 2440408 A2 EP2440408 A2 EP 2440408A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- cylinders
- cylinder
- printing
- employment
- drive
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F5/00—Rotary letterpress machines
- B41F5/24—Rotary letterpress machines for flexographic printing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F13/00—Common details of rotary presses or machines
- B41F13/08—Cylinders
- B41F13/24—Cylinder-tripping devices; Cylinder-impression adjustments
- B41F13/34—Cylinder lifting or adjusting devices
- B41F13/38—Cylinder lifting or adjusting devices electrically or magnetically operated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F31/00—Inking arrangements or devices
- B41F31/30—Arrangements for tripping, lifting, adjusting, or removing inking rollers; Supports, bearings, or forks therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
- B41P2213/00—Arrangements for actuating or driving printing presses; Auxiliary devices or processes
- B41P2213/70—Driving devices associated with particular installations or situations
- B41P2213/73—Driving devices for multicolour presses
Definitions
- the invention relates to a device for mutual hiring at least two cylinders of a printing press according to the preamble of claim 1 and an associated method according to the preamble of claim 3.
- inking units of rotary printing machines a plurality of cylinders is often arranged, which are adjustable with respect to their adjacent cylinders in the distance.
- various flexographic printing machines have a plurality of inking units, which are arranged together on a central impression cylinder.
- the inking units in turn comprise at least two further cylinders, a printing cylinder and an applicator roll.
- the patent application EP 1 018 426 A1 shows a flexographic printing press on which an automatic method for mutual adjustment of a printing cylinder, an applicator roll and a counter-pressure cylinder can be carried out.
- the printing cylinder is set in slow rotation by means of the drive motor.
- the non-rotating applicator roll in its radial direction slowly against the printing cylinder
- CONFIRIIATIQN COPV hazards As soon as contact takes place between the impression cylinder and the applicator roll, a change in torque occurs in the drive train of the impression cylinder, which is detected by a rotary encoder (the drive train). The position that the applicator roll has reached at that moment is stored by the press control unit as the zero position for the applicator roll. Subsequently, the - further rotating - pressure cylinder is moved against the impression cylinder until a further change in torque enters its drive train. The position of the printing cylinder is stored in the control unit as zero position for the printing cylinder. The path that the printing cylinder was moved to contact the impression cylinder is added to the zero position of the applicator roll.
- the printing cylinders often consist of a cylinder mandrel, which optionally carries a cylinder sleeve, on which in turn a cliché is attached.
- the cliché can also be mounted directly on a solid cylinder.
- the cliché carries the raised areas that make up the printed image. After each job change, the clichés are replaced.
- the different clichés usually have different thicknesses (thicknesses). Therefore, the zero position of the cylinders must be re-determined after each job change.
- EP 1 018 426 A1 has disadvantages, since the forces which act on the contact of the cylinders with the cylinder surface are very high. Tests have shown that the printing cylinders damage already after a few automatic Anstellzyklen after this Beistellmaschine. In the case of flexographic printing, for example, the raised areas of the printing cylinder-which are usually provided by a cliché-are damaged in such an auxiliary process.
- the object of the present invention is therefore to propose a device and a method for adjusting cylinders of a printing press, in which / the damage to the printing cylinder is avoided. According to the invention, this object is solved by the features of the characterizing parts of claims 1 and 3. Accordingly, the control unit of the printing machine is set up such that it operates the at least one drive of the cylinders during the employment of the same against each other, in field weakening operation.
- the present invention can be used in flexographic printing machines.
- Such printing machines have at least one inking unit, which comprises at least two cylinders.
- these cylinders are a printing cylinder (including cliché) and a job cylinder, which are employed in the printing operation against each other and against the impression cylinder.
- Modern flexographic printing machines can have up to 10 inking units, which are arranged together around a central impression cylinder.
- all cylinders impression cylinder, impression cylinder and applicator roller
- These are often electric motors, which - usually gearless - apply a torque to the cylinder axis.
- Conceivable are DC, three-phase, synchronous or asynchronous motors.
- the cylinders are rotatably mounted in the inking unit in so-called bearing blocks.
- the bearing blocks are usually provided with spindle drives and associated electric motors and can be moved on rails in the radial direction of the cylinder.
- the cylinders are adjustable against each other.
- the spindle motors of the bearing blocks can be controlled via a control unit of the printing press.
- the control unit is the respective (current) position of the individual bearing blocks - and thus the radial position of the cylinder to each other - known.
- at least one cylinder is set into rotary motion by means of its drive motor. Subsequently, the rotating cylinder is brought into contact with an adjacent cylinder.
- radial direction is meant that the direction of movement at least one Radial component of the cylinder should include, so that at least a partial contact of the peripheral surfaces of the two cylinders is brought about. Accordingly, a non-parallel hiring the two cylinders to each other is possible. In this case, the axes of the at least two cylinders are inclined to each other during employment.
- sensors are provided which record the parameters of the rotational movement of the cylinder.
- the parameters will be the torque and / or the rotational speed of the cylinders. If these parameters change, a first contact between the cylinders to be set up is established.
- a sensor for example, serve the rotary encoder, which is associated with the rotating cylinder.
- the rotary encoder is capable of measuring the angular velocity (rotational speed) of a rotating body (in this case, the cylinder).
- the data of the rotary encoder are transmitted via a suitable data line to the control unit. If the diameter of the cylinder is known, the peripheral speed can be calculated from the angular velocity.
- the control unit perceives a change in the angular velocity of the engaged cylinder. At this moment, the radial relative movement of the two cylinders is terminated to each other. The position which the cylinders have at this point in time is stored by the control unit as zero position.
- a change in the torque forming current supplied to the drive of the cylinder may be detected by the control unit.
- the current forming the torque is supplied by a so-called frequency converter. But also so-called servos can be provided for this purpose.
- the measuring device that monitors the torque-forming current serves as a sensor for the first contact of the cylinder.
- the torque-forming current is monitored by the control unit of the printing press.
- the excitation current (field current) and / or the torque-forming current can be monitored.
- sensors can measure the parameters of the rotational movement of the cylinder.
- optical Sensors conceivable that record the rotational speed of the cylinder.
- pneumatic sensors or piezo sensors which perceive the contact of the cylinder, are conceivable.
- the zero position is added to a specific pressing range - a so-called offset.
- This contact pressure ensures that the cylinders exert an optimum contact pressure against each other and thus achieve the desired ink transfer on the substrate.
- This Anpresset is advantageously between 10 and 100 microns.
- the control unit reduces the torque producing current that is supplied to the drive of the cylinder so that the drive experiences a so-called field weakening.
- the control device will usually control a respective power drive associated power divider - such as a frequency converter.
- this current will be the so-called field current (for example, an asynchronous motor).
- the magnetic flux in the working range of the engine is lowered below the nominal value. This achieves a reduction of the torque at the same speed in the drive. If a spinning cylinder is now attached to another cylinder - is made according to the method described above, the torque and thus the force acting on the contact of the cylinder on the cylinder surface, very low.
- the cylinder surface - and in particular the raised areas of the printing cylinder - take no damage.
- a field weakening can be realized both in DC and in three-phase motors.
- At least one of the at least two cylinders has an asynchronous motor as a drive.
- field weakening is particularly easy to implement. For this purpose is simply - as already stated above - the field current lowered.
- At least one of the cylinders which are to be set against each other, performs a rotational movement whose direction changes. It may be advantageous if the movement alternately - that is alternating - changes. But it may also be advantageous if a direction of movement is preferably carried out.
- At least one of the cylinders comprises a protrusion on its peripheral surface.
- This survey exerts the first contact when hiring the at least two cylinders. This means that the survey is in contact with a cylinder as soon as the sensors perceive a change in the parameters of the rotational movement of the cylinders.
- the surveys are also called microdots. They advantageously have a diameter of 100 to 400 microns, but preferably a diameter between 150 and 250 microns. The height of the microdots is modeled on the height of the raised areas (ie the cliché height). The use Such M ikro points is recommended for example when Einjust réelle the printing press.
- a bearing block of the cylinder to be set is moved in the radial direction against the other cylinder until the control unit detects the first contact between the cylinders. The first contact, the cylinders are therefore not parallel to each other.
- the cylinder is returned to the starting position. Subsequently, the other side of the cylinder is moved against the other cylinder and the mutual zero position is equally determined and stored. This "bilateral determination of the zero position" can be achieved in the axial direction uniform Beiwolf (a uniform force in the axial direction of the cylinder).
- both of the at least two cylinders rotate during their employment.
- Particularly advantageous is an opposite rotation of the at least two cylinders.
- a small speed difference can be realized.
- the cylinders have a rotation in the employment, which is rectified. This can be advantageous if the parameters change so little during employment that the sensors can only perceive them with difficulty. A sense of direction in the same direction reinforces the changing parameters in the cylinder provision.
- a particularly preferred embodiment of the invention includes that the speed difference between the at least two cylinders during the employment is less than 30 mm / s, but preferably between 5 and 10 mm / s. Further embodiments of the invention will become apparent from the description and the claims.
- the individual figures show:
- Fig. 1 side view of a printing machine
- FIG. 6 is a side view of the printing cylinder and the applicator roll
- FIG. 7 is a side view of the printing cylinder and the applicator roll
- FIG. 8 is a schematic diagram of an embodiment of a drive of a printing press according to the invention
- Fig. 1 shows a printing machine 1, which represents a central cylinder flexographic printing machine in the illustrated embodiment. It therefore comprises an impression cylinder 2, on which the printing material 3 is guided.
- the direction of rotation of the impression cylinder is represented by the arrow R. So that the printing material 3 rests completely on the counter-pressure cylinder 2 before the first pressure roller, it is guided by a pressure roller 4.
- each inking unit 5 initially comprises a bracket 6, which extends away from a central machine frame 7.
- Each console carries the cylinders necessary to print one color.
- anilox rollers 9 are provided, which are accordingly adjustable to the pressure rollers 8.
- the anilox rollers 9 are supplied from the doctor chambers 10, not shown in FIG. 1, with the respective desired ink.
- the pressure rollers 8, optionally also the anilox rollers 9 against those with different diameters or against those with Differences in relation to other properties (in anilox rollers, for example, the delivery volume) to be exchanged said rollers 8, 9 are mounted in bearing blocks, which are displaceable by means of suitable displacement devices relative to the counter-pressure cylinders.
- These displacement means may comprise guide rails which are mounted on or on the console and which extend away from the impression cylinder.
- the displacement devices further include drives for moving the bearing blocks along the guide rails, these drives usually have a spindle-spindle nut combination.
- Each of the rollers 8, 9 is supplied with torque by torque-supplying components. Often, these are gears that mesh with each attached to the roller gear. These gears can be driven by a central drive. But there are also known for some years printing presses, which include a separate drive for each roller 8, 9, which drive the respective roller via gears. In modern printing machines gears are completely omitted; the drives drive the cylinders directly.
- the bearings of the bearing blocks which store these rollers are designed in such a way that removal of the rollers is possible. It is advantageous if the bearings remain on the journal of the rollers and parts of the bearing block are folded down, so that the rollers are removed upwards. In addition, the roller - if necessary before - decouple from the drive train.
- the color transport of a paint reservoir the color is supplied from outside the printing press - here the paint bucket 20 - sketch to the substrate 3.
- the color lines 13 establish the connection between the paint bucket 20 and the doctoring chamber 10.
- a paint line color 23 is passed to the doctoring chamber and in the other line 13 from the doctoring chamber 10 to the bucket 23.
- the anilox roller 41 delivers the ink to the plate 43 of the plate roller 42, which rotates in the direction indicated by the arrow B.
- With the cliché will the printing substrate 3 printed while it passes through the printing gap 48 defined by cliché roller 42 and impression cylinder 2.
- the printing material is further promoted in the direction of rotation A of the impression cylinder, passes the guide roller 49, is lifted from the impression cylinder 2 and examined by the optical measuring device 21.
- the cone of light 22 represents the light reflected from the printed image.
- a weighing device 24 monitoring the weight of the bucket 20 is shown.
- FIG. 3 shows the cylinders of an inking unit of a flexographic printing machine 1 in a parked position relative to each other.
- the addition method according to the invention initially involves putting the printing cylinder 42 carrying the cliché 43 into rotation.
- the direction of rotation of the cylinder 42 can take place in both directions of the double arrow D.
- This parameter can be, for example, a change in the peripheral speed of the cylinder 42 - which can be detected via a change in the angular velocity by the rotary encoder - but also a change in the motor current - which the frequency converter drives the cylinder 42 feeds - be.
- FIG. 6 shows an opposite rotational direction d41 and d42 of the cylinders 41 and 42.
- the resulting velocity vectors vi and v2 of the cylinders 41, 42 are rectified.
- the differential speed results from the difference of the velocity vectors vi and v2 and is therefore small in the pressure gap 40.
- FIG. 7 shows a rotational movement in the same direction of the cylinders 41, 42 to see.
- the velocity vectors vi and v2 are opposite. The speed difference is big.
- the applicator roll Until contact with the printing cylinder 42, the applicator roll has traveled a distance x in the radial direction.
- the position occupied by the applicator roll on the first contact with the impression cylinder is stored in the control unit of the printing press.
- the application roller 41 by a defined distance - for example, 1 mm - from the printing cylinder - that is opposite to the arrow E - moved away. This allows the printing cylinder to rotate freely again.
- the further rotating printing cylinder 42 is now moved in the direction of the impression cylinder (in the direction of arrow E) until a sensor of the inking unit 5 again detects an exceeding of at least one parameter of the rotational movement of the cylinder 42.
- a sensor of the inking unit 5 again detects an exceeding of at least one parameter of the rotational movement of the cylinder 42.
- the pressure cylinder 42 has to travel a distance y for this purpose.
- the zero position for the impression cylinder the current position of the same is stored.
- the distance y (of the printing cylinder) is added to the stored position of the applicator roll and stored as a zero position for the applicator roll.
- EP 1 249 346 A1 shows a method for setting a printed image in a flexographic printing press. In the illustrated in Figure 2 embodiments of EP 1 249 346 A1 is shown in which way or order the three rollers involved (counter-pressure, impression cylinder, applicator roll) of an inking unit of a flexographic printing machine can be employed against each other.
- EP 1 249 346 A1 and the associated text passages are included within the scope of the present patent application.
- the cylinders involved 41, 42 over a certain distance - the so-called offset - moved beyond its zero position in the radial direction E. This offset causes the desired pressure force or the desired ink transfer of the cylinder involved in the printing process.
- FIGS. 4 and 5 each show a top view of the printing cylinder 42 and the applicator roll 41.
- the printing cylinder 42 thus carries the microdots 45 already mentioned above.
- An alternative embodiment of the inventive equipping method comprises, first, a first axial end G of one cylinder 42 against the other Cylinder 41 to set ( Figure 4). In this case, first, the microdot 45 of the first side G comes into contact with the surface of the roller.
- the axes 46, 44 of the two cylinders 41, 42 are in this phase (during employment) at an angle to each other.
- the position of the first side G of the cylinder 42 is stored in the control unit as the zero position of the first side G of the cylinder.
- the pressure roller 8 receives its torque via the drive train 50 from the asynchronous 51. Often. is the drive train 50 gearless and thus designed only as a shaft.
- the drive train 50 has a clutch 58 with which the pressure roller 8 can be released from the asynchronous machine 51.
- the speed of the asynchronous machine 51 and / or the shaft can with a Encoder 52 are monitored.
- This rotary encoder 52 may be structurally integrated into the motor 51.
- the asynchronous motor 51 receives the power necessary for its operation via the three-phase lines 56 from the frequency converter 53. It is possible to measure the currents flowing through the lines 56, inter alia, with current sensors 57.
- the frequency converter 53 receives its power from a line network 54.
- the control device has not shown lines contact with the encoders 52 and current sensors 57.
- they can drive the frequency converter 53 so that it operates the asynchronous motor 51 in the field weakening operation. For this purpose, for example, it can lower the exciter or field current below the nominal value. For example, at a nominal value of 10 A up to 1 A.
- the control unit 55 can also control the adjusting means and optionally the drive of the second cylinder, which is to be placed on the pressure roller, such that the Anstellrea between the cylinders takes place as described in this document and that the . Relative peripheral speed of the two cylinders is in the desired range.
- control unit can be set up-for example with a computer program.
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009025053A DE102009025053A1 (en) | 2009-06-10 | 2009-06-10 | Device and method for mutual hiring at least two cylinders of a printing press |
PCT/EP2010/003397 WO2010142405A2 (en) | 2009-06-10 | 2010-06-07 | Device and method for setting at least two cylinders of a printing machine against each other |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2440408A2 true EP2440408A2 (en) | 2012-04-18 |
EP2440408B1 EP2440408B1 (en) | 2015-01-14 |
Family
ID=43031459
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10755086.5A Active EP2440408B1 (en) | 2009-06-10 | 2010-06-07 | Device and method for mutual engagement of at least two cylinders of a printing machine |
Country Status (5)
Country | Link |
---|---|
US (1) | US8578850B2 (en) |
EP (1) | EP2440408B1 (en) |
DE (1) | DE102009025053A1 (en) |
ES (1) | ES2532661T3 (en) |
WO (1) | WO2010142405A2 (en) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2384892A1 (en) | 2010-05-07 | 2011-11-09 | Windmöller & Hölscher KG | Method for setting and device for determining an optimal operating distance between at least two cylinders of a printing unit involved in the printing process |
ES2395184B1 (en) * | 2011-08-12 | 2013-11-28 | Comexi Group Industries, Sau | PRESSURE ADJUSTMENT METHOD IN A FLEXOGRAPHIC PRINTER AND FLEXOGRAPHIC MACHINE FOR IMPLEMENTATION. |
ES2395183B1 (en) * | 2011-08-12 | 2013-11-28 | Comexi Group Industries, Sau | METHOD FOR PRESSURE ADJUSTMENT IN A FLEXOGRAPHIC PRINTER MACHINE AND FLEXOGRAPHIC PRINTER MACHINE FOR IMPLEMENTATION. |
DE102011086047A1 (en) * | 2011-11-09 | 2013-05-16 | Windmöller & Hölscher Kg | Method for adjusting the distances between cylinders of an inking unit and printing machine |
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 |
DE102012103853B4 (en) * | 2012-05-02 | 2022-10-13 | Windmöller & Hölscher Kg | Method for the parallel alignment of at least two cylinders to each other and calibration device |
ITVR20120085A1 (en) * | 2012-05-07 | 2013-11-08 | Uteco Converting Spa | PROCEDURE AND EQUIPMENT FOR THE IDENTIFICATION OF THE POSITION OF TANGENCE BETWEEN THE SIDE SURFACE OF A PRINTING CYLINDER AND ANOTHER PRINTING ELEMENT IN ROTARY PRINTING MACHINES |
EP2818319B1 (en) | 2013-06-28 | 2015-08-05 | CONPRINTA GmbH & Co. KG | Printer |
WO2015001126A1 (en) * | 2013-07-05 | 2015-01-08 | Windmöller & Hölscher Kg | Method and device for mutual throwing on of two cylinders in a printing press |
DE102015108126A1 (en) * | 2015-05-22 | 2016-11-24 | Windmöller & Hölscher Kg | Printing machine and method for employment of several inking units of a printing press |
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 |
EP3606759A1 (en) * | 2017-04-07 | 2020-02-12 | Bobst Firenze S.r.l. | Printing unit with interchangeable printing sleeve |
IT201900003965A1 (en) * | 2019-03-19 | 2020-09-19 | Koenig & Bauer Flexotecnica S P A | METHOD FOR DETERMINING THE POSITION OF MUTUAL CONTACT BETWEEN A PRINT ROLL AND AT LEAST ONE COUNTER-ROLL SELECTED BETWEEN A CENTRAL DRUM AND AN INK ROLL IN FLEXOGRAPHIC PRINTING MACHINES AND THE RELEVANT FLEXOGRAPH PRINTING MACHINE |
US11298932B2 (en) * | 2019-03-19 | 2022-04-12 | Koenig & Bauer Ag | Method for determining the position of mutual contact between a printing roller and at least one counter roller |
IT202100021335A1 (en) * | 2021-08-05 | 2023-02-05 | Expert S R L | Method for determining the position of a platen in a flexographic printing machine |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4677360A (en) * | 1986-03-13 | 1987-06-30 | General Electric Company | Field weakening induction drive |
DE4318200C2 (en) | 1993-06-01 | 1995-04-20 | Roland Man Druckmasch | Method for adjusting the contact between two rollers that can be adjusted at a distance from one another |
GB9426166D0 (en) | 1994-12-23 | 1995-02-22 | Langston Corp | Printing apparatus |
ES2166580T3 (en) | 1998-08-29 | 2002-04-16 | Fischer & Krecke Gmbh & Co | PROCEDURE AND DEVICE FOR THE PREVENTION OF COLLISIONS IN PRINTING MACHINES. |
DE19900258A1 (en) | 1999-01-07 | 2000-07-13 | Fischer & Krecke Gmbh & Co | Method for positioning two cylinders of a printing press against one another |
DE20122584U1 (en) | 2001-03-27 | 2006-07-27 | Windmöller & Hölscher Kg | Print image setting device for rotary printing machine has camera feeding successively acquired print images to control or regulating unit that produces signals for participating rollers |
DE102006003005B3 (en) * | 2005-06-17 | 2006-11-23 | Koenig & Bauer Ag | Press for flexographic printing has drive motor in form of synchronous motor with permanent magnet excitation |
US20070095227A1 (en) * | 2005-10-31 | 2007-05-03 | Hewlett-Packard Development Company, L.P. | Media ejection |
-
2009
- 2009-06-10 DE DE102009025053A patent/DE102009025053A1/en not_active Ceased
-
2010
- 2010-06-07 EP EP10755086.5A patent/EP2440408B1/en active Active
- 2010-06-07 WO PCT/EP2010/003397 patent/WO2010142405A2/en active Application Filing
- 2010-06-07 ES ES10755086.5T patent/ES2532661T3/en active Active
- 2010-06-07 US US13/376,957 patent/US8578850B2/en active Active
Non-Patent Citations (1)
Title |
---|
See references of WO2010142405A2 * |
Also Published As
Publication number | Publication date |
---|---|
DE102009025053A1 (en) | 2010-12-16 |
US8578850B2 (en) | 2013-11-12 |
WO2010142405A2 (en) | 2010-12-16 |
EP2440408B1 (en) | 2015-01-14 |
US20120079954A1 (en) | 2012-04-05 |
ES2532661T3 (en) | 2015-03-30 |
WO2010142405A3 (en) | 2011-03-03 |
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