EP0738591A1 - Cylindre de transfert avec une unité d'entraînement électrique - Google Patents

Cylindre de transfert avec une unité d'entraînement électrique Download PDF

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Publication number
EP0738591A1
EP0738591A1 EP96104409A EP96104409A EP0738591A1 EP 0738591 A1 EP0738591 A1 EP 0738591A1 EP 96104409 A EP96104409 A EP 96104409A EP 96104409 A EP96104409 A EP 96104409A EP 0738591 A1 EP0738591 A1 EP 0738591A1
Authority
EP
European Patent Office
Prior art keywords
transfer cylinder
rotor
bearing
drive unit
electromotive 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
Application number
EP96104409A
Other languages
German (de)
English (en)
Other versions
EP0738591B1 (fr
Inventor
Christian Dr. Compera
Martin Greive
Bernd Herrmann
Karlheinz Dr. Peter
Anton Rodi
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.)
Heidelberger Druckmaschinen AG
Original Assignee
Heidelberger Druckmaschinen 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
Priority claimed from DE19530283A external-priority patent/DE19530283A1/de
Application filed by Heidelberger Druckmaschinen AG filed Critical Heidelberger Druckmaschinen AG
Publication of EP0738591A1 publication Critical patent/EP0738591A1/fr
Application granted granted Critical
Publication of EP0738591B1 publication Critical patent/EP0738591B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/004—Electric or hydraulic features of drives
    • B41F13/0045—Electric driving devices

Definitions

  • the invention relates to a transfer cylinder for printing presses and an electromotive drive unit therefor.
  • a transfer cylinder of a printing press e.g. B. a pressure cylinder to be driven by a motor which is installed elsewhere in the printing press and which has power transmission elements, for. B. a transmission is connected to the transfer cylinder.
  • the transfer cylinder, the motor and possibly the transmission each have their own bearings in one or more units of the printing press supporting them, e.g. B. the side walls.
  • the invention has for its object to provide a mechanically particularly simple and largely backlash-free drive for a transfer cylinder.
  • Direct drives are known per se, for example in turntables.
  • To drive the cylinders of printing machines in any similar way has not been considered so far, since not only the uniform running of a single cylinder must be ensured, but all cylinders must always be synchronized exactly with each other, and this with considerable drive and load change forces .
  • these requirements can be met in the implementation of the invention by a suitable choice of motor type and by using a suitable electronic control and regulating device.
  • a first type of motor suitable for the invention is an internal rotor motor, the rotor of which is arranged at an axial end of the transfer cylinder and on the axis of the transfer cylinder, e.g. B. extended by a shaft journal of the transfer cylinder beyond the associated cylinder bearing and provided on the outside with an arrangement of magnets.
  • a pot-shaped stator which is attached to the printing press, encloses the rotor radially.
  • a second suitable type of motor is an external rotor motor, the rotor of which is formed by a part of the transfer cylinder, on the inside of which magnets are attached.
  • the high demands on the synchronism behavior of the drive are best solved by a slow-running, permanently excited synchronous motor, whose concentricity properties are optimized, e.g. B. by oblique grooving, sinusoidal magnetization in the air gap and a sufficiently high number of poles.
  • a sensor that scans suitable markings on the rotor or on the transfer cylinder is preferably integrated into the stator in a fixed installation position.
  • the fact that the position transmitter formed by the markings and the sensor is located at the same end of the transfer cylinder as the rotor means that there are practically no rotational angle measurement errors.
  • the high rigidity of the structure gives excellent control properties.
  • the assembly with the stator can be assembled as a whole on the printing press and removed therefrom.
  • This unit can additionally contain control and regulating electronics and / or power electronics for the electromotive drive unit, so that it forms an autonomous drive unit with local intelligence.
  • the transfer cylinder and the essential drive components thus consist of only two structural units, firstly an integral unit consisting of the transfer cylinder and rotor and secondly a stator unit with integrated electronics, which benefits the ease of maintenance of the printing press.
  • the drive according to the invention is very robust and has a low weight and a small construction volume in comparison with known transfer cylinder drives.
  • the motor is an external rotor motor
  • the invention provides that the transfer cylinder is at least at the end with the motor in the form of an open tube, the outside of which forms both the working surface of the transfer cylinder and a bearing surface, the working surface and the bearing surface being continuous and of the same diameter are.
  • the rotor magnets are attached to the inside of the open end of the transfer cylinder.
  • any additional equipment required in terms of printing technology can be accommodated within the transfer cylinder.
  • Such a transfer cylinder can also be pulled out of the side of the machine without having to dismantle the bearings or the side walls.
  • both ends of the transfer cylinder are formed as an open tube, the transfer cylinder can also be produced from a tubular semi-finished product without complex welding and without extensive machining. There is no pin deflection and flange deformation as with conventional transfer cylinders, and the transfer cylinder has the greatest possible rigidity for a given weight.
  • Such a structure is particularly for transfer cylinders with a continuous work surface suitable that have no longitudinal groove.
  • Such transfer cylinders can be provided with a hard, wear-resistant and high-precision manufactured surface in order to give the working surface of the transfer cylinder certain properties which are primarily of printing importance. If the entire outer surface of a transfer cylinder according to the invention is formed in this way, the properties mentioned also benefit the mounting of the transfer cylinder. In particular, it becomes possible to use the hard surface as a bearing surface at the same time and to mount the pressure roller directly on the rolling elements of a rolling bearing or in a plain bearing.
  • a tubular design of the transfer cylinder is not only an option for an external rotor motor, but also for an internal rotor motor.
  • the rotor is preferably designed as an essentially cylindrical component which projects laterally from the transfer cylinder, wherein it is radially enclosed by a pot-shaped stator.
  • a transfer cylinder 1 has at each end a shaft journal 2, 3, which are mounted on ball bearings 4, 5 in side walls 6, 7 of a printing press.
  • the shaft journal 3 is extended outwards beyond the ball bearing 5.
  • stator which is formed by electromagnets 11, which are fastened on the cylindrical inside of a pot-shaped stator housing 12, which is fastened with its open side to the side wall 7 of the printing press.
  • a transfer cylinder 20 is formed at one end as in FIG. 1.
  • the transfer cylinder 20 has no shaft journal, but is designed as an open tube which is mounted in a ball bearing 21 corresponding to its outer diameter in the side wall 7 of the printing press.
  • a non-positive cylindrical sleeve 22 is pressed, on the inside of which pre-assembled permanent magnets 23 are arranged.
  • the transfer cylinder 20 to be driven in connection with the sleeve 22 and the permanent magnets 23 serves as the rotor here.
  • the associated stator is formed by electromagnets 24, which are attached to the outside of a peg-shaped part of a stator housing 25.
  • the stator housing 25 is fastened to the side wall 7 of the printing press in such a way that its peg-shaped part with the electromagnets 24 is immersed concentrically in the arrangement of the permanent magnets 23.
  • a transfer cylinder 30 is shown in the form of a continuous straight tube which extends along an axis 32.
  • the outer surface of the transfer cylinder 30 is an extremely hard, wear-resistant and highly precisely manufactured ceramic surface which, with the same diameter everywhere, forms both an axially central cylindrical working surface 33 and bearing surfaces 34 and 35 at the axial ends of the transfer cylinder 30.
  • the working surface 33 and the bearing surfaces 34 and 35 together form a continuous surface with the same diameter everywhere.
  • the bearing surfaces 34 and 35 are mounted for radial rotation of the transfer cylinder 30 in radial bearings 36 and 37, respectively, which are fastened to side walls 38 and 39 of the printing press.
  • the bearing surfaces 34 and 35 run directly on rolling elements 40 and 41 of the radial bearings 36, 37.
  • the transfer cylinder 30 Adjacent to the bearing surface 35 and completely at one axial end, the transfer cylinder 30 has an annular axial bearing surface 42 with a somewhat smaller diameter than the bearing surface 35. Between one through the A shoulder 43 on the transfer cylinder 30 and a ring-shaped disc spring 44 screwed onto its end has an axial bearing 45 seated on the axial bearing surface 42 attached.
  • the transfer cylinder 30 shown in Fig. 3 can be very easily disassembled by pulling it laterally out of the printing machine after loosening the axial bearing 45. While the transfer cylinder 30 can be pulled out on both sides in the exemplary embodiment shown, since the working surface 33 and the bearing surfaces 34 and 35 have the same diameter, embodiments are also possible in which, for. B. the diameter of the bearing surface 34 is slightly larger or the diameter of the bearing surface 35 is slightly smaller than the diameter of the working surface 3, so that the transfer cylinder 30 can be pulled out at least on one side. On the other hand, a tube with a substantially uniform surface, as shown in Fig. 1, is of course the easiest to manufacture.
  • a cylindrical rotor 47 which contains permanent magnets (not shown in detail) and which projects beyond the end of the transfer cylinder 30, is pressed concentrically into one end of the transfer cylinder 30.
  • the protruding part of the rotor 47 is radially surrounded by electromagnets 48 which are fixedly mounted in a stator housing 49.
  • the stator housing 49 is attached to the side wall 38 of the printing press by, for. B. a clamping device, not shown, presses the stator housing 49 against the side wall 38, the stator housing 49 being axially fixed by pins 50. This enables simple assembly and disassembly of the stator housing 49.
  • a marking disk 51 is attached to the outer axial end of the rotor 47.
  • the stator housing 49 contains one or more sensors 52, which are arranged adjacent to the marking disk 51, with an air gap therebetween.
  • the marking disk 51 and the sensor or sensors 52 form a position sensor for the angular position of the rotor 47 or the transfer cylinder 30.
  • the position sensor has a resolution of 1000 periods per revolution or more, depending on the respective requirements of the synchronism behavior.
  • Control and regulating electronics 53 and power electronics 54 are also accommodated in the stator housing 49, as shown schematically.
  • the power electronics 54 is connected to a power supply of the printing press via power supply lines, not shown, and supplies the electromagnets 48 with current as a function of control signals from the control and regulating electronics 53.
  • the control and regulating electronics 53 is connected to a machine computer.
  • Fig. 4 is an embodiment of a tubular transfer cylinder with an integrated external rotor motor. Parts that correspond to the embodiment of FIG. 3 are identified by the same reference numerals.
  • stator shaft 62 which carries magnet coils 63 which are opposite the magnets 61.
  • the stator shaft 62 extends through the entire transfer cylinder 60 and is attached to the printing machine at both ends, as indicated schematically. This results in a particularly high stiffness of the stator.
  • a position transmitter, control and regulating electronics and power electronics can also be integrated in the stator in the exemplary embodiments in FIGS. 1, 2 and 4.
  • 5a to 5d show several alternatives for the storage of a tubular transfer cylinder 70 in a side wall 71.
  • the use of a roller bearing 72 with an inner and outer ring, as shown in FIG. 5a, is advantageous if the bearing surface of the transfer cylinder is not directly stressed should or can.
  • ball bearings can be used as rolling bearings, as shown in Fig. 5a or 5b.
  • the balls of a ball bearing can also roll directly on the bearing surface of the transfer cylinder 70, as shown in FIG. 5b using a roller bearing 73 without an inner ring.
  • rolling elements can also directly on the transfer cylinder 70 as well as on an in without the interposition of bearing rings Roll the side surface 71 formed bearing surface 74. Finally, the rolling elements can also be omitted if a sliding bearing of the transfer cylinder 70 is used in a bearing bush 75, as shown in FIG. 5d.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rotary Presses (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
EP96104409A 1995-04-15 1996-03-20 Cylindre de transfert avec une unité d'entraínement électrique Expired - Lifetime EP0738591B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19514157 1995-04-15
DE19514157 1995-04-15
DE19530283A DE19530283A1 (de) 1995-04-15 1995-08-17 Übertragungszylinder mit elektromotorischer Antriebseinheit
DE19530283 1995-08-17

Publications (2)

Publication Number Publication Date
EP0738591A1 true EP0738591A1 (fr) 1996-10-23
EP0738591B1 EP0738591B1 (fr) 1999-01-27

Family

ID=26014415

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96104409A Expired - Lifetime EP0738591B1 (fr) 1995-04-15 1996-03-20 Cylindre de transfert avec une unité d'entraínement électrique

Country Status (3)

Country Link
US (1) US5711221A (fr)
EP (1) EP0738591B1 (fr)
JP (1) JPH08318612A (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999055533A2 (fr) * 1998-04-24 1999-11-04 Koenig & Bauer Aktiengesellschaft Rouleau pour presse rotative
WO2005056195A1 (fr) * 2003-12-12 2005-06-23 Maschinenfabrik Wifag Dispositif d'entrainement a rotor exterieur
CN105922721A (zh) * 2016-06-15 2016-09-07 浙江京华激光科技股份有限公司 一种镭射模压全息版辊

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19624394C1 (de) * 1996-06-19 1997-12-04 Roland Man Druckmasch Angetriebener Zylinder
US5783879A (en) * 1997-06-03 1998-07-21 Eastman Kodak Company Micromotor in a ceramic substrate
DE19930998B4 (de) 1998-07-31 2011-11-10 Heidelberger Druckmaschinen Ag Druckmaschinenantrieb
DE19848184C2 (de) * 1998-10-20 2002-02-28 Roland Man Druckmasch Zylinder einer Rotationsdruckmaschine
SG116487A1 (en) * 1998-12-16 2005-11-28 Silverbrook Res Pty Ltd Duplex inkjet printing system.
US6631986B2 (en) * 1998-12-16 2003-10-14 Silverbrook Research Pty Ltd Printer transport roller with internal drive motor
IT1314383B1 (it) † 2000-02-18 2002-12-13 Uteco S P A Roto Flexo & Conve Macchina da stampa rotativa flessografica a piu' colori
DE102004061669A1 (de) * 2004-12-22 2006-07-13 Man Roland Druckmaschinen Ag Druckmaschinenwalze sowie Druckmaschinenzylinder
DE102006009786A1 (de) * 2006-03-01 2007-09-06 Emag Holding Gmbh Antrieb für eine Schleifspindel
DE102006013636B4 (de) * 2006-03-22 2012-02-09 Siemens Ag Druckmaschine bzw. elektrische Maschine für eine Druckmaschine
US20110299841A1 (en) * 2010-06-05 2011-12-08 Zongfa Cheng Internal Power Driven Automatic Backdrop Apparatus
EP2562102B8 (fr) * 2011-08-23 2014-06-18 Siemens Aktiengesellschaft Installation de transport à bande, son procédé de fonctionnement et d'utilisation
EP3141499A1 (fr) * 2015-09-09 2017-03-15 Siemens Aktiengesellschaft Entrainement pour une installation de transport a bande, procede de montage d'un entrainement sur une installation de transport a bande et transport a bande

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9306369U1 (de) * 1991-11-22 1993-11-04 Baumüller Anlagen-Systemtechnik GmbH & Co., 90482 Nürnberg Anordnung für einen Elektromotor zum Antrieb eines Drehkörpers, insbesondere des druckgebenden Zylinders einer Druckmaschine
EP0699524A2 (fr) * 1994-08-30 1996-03-06 M.A.N.-ROLAND Druckmaschinen Aktiengesellschaft Machine d'impression offset

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3608486A (en) * 1969-04-28 1971-09-28 Hoe & Co R Drive means for the inking mechanism of a printing machine
US4665350A (en) * 1986-01-31 1987-05-12 General Motors Corporation Open-loop brushless motor control system
US4930415A (en) * 1988-02-10 1990-06-05 Baldwin-Japan Limited Automatic web guide roller cleaning device
DE3919291C2 (de) * 1988-06-14 1995-07-06 Tokyo Kikai Seisakusho Ltd Bahnvorschubrolle und Antriebssteueranordnung hierfür

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9306369U1 (de) * 1991-11-22 1993-11-04 Baumüller Anlagen-Systemtechnik GmbH & Co., 90482 Nürnberg Anordnung für einen Elektromotor zum Antrieb eines Drehkörpers, insbesondere des druckgebenden Zylinders einer Druckmaschine
EP0699524A2 (fr) * 1994-08-30 1996-03-06 M.A.N.-ROLAND Druckmaschinen Aktiengesellschaft Machine d'impression offset

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999055533A2 (fr) * 1998-04-24 1999-11-04 Koenig & Bauer Aktiengesellschaft Rouleau pour presse rotative
WO1999055533A3 (fr) * 1998-04-24 2000-11-09 Koenig & Bauer Ag Rouleau pour presse rotative
US6543355B1 (en) 1998-04-24 2003-04-08 Koenig & Bauer Aktiengesellschaft Roller for a rotary press
WO2005056195A1 (fr) * 2003-12-12 2005-06-23 Maschinenfabrik Wifag Dispositif d'entrainement a rotor exterieur
CN105922721A (zh) * 2016-06-15 2016-09-07 浙江京华激光科技股份有限公司 一种镭射模压全息版辊

Also Published As

Publication number Publication date
EP0738591B1 (fr) 1999-01-27
US5711221A (en) 1998-01-27
JPH08318612A (ja) 1996-12-03

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