Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
  • B41F—PRINTING MACHINES OR PRESSES
  • B41F31/00—Inking arrangements or devices
  • B41F31/004—Driving means for ink rollers
• • 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
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
  • B41F—PRINTING MACHINES OR PRESSES
  • B41F13/00—Common details of rotary presses or machines
  • B41F13/008—Mechanical features of drives, e.g. gears, clutches
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
  • B41F—PRINTING MACHINES OR PRESSES
  • B41F31/00—Inking arrangements or devices
  • B41F31/15—Devices for moving vibrator-rollers
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
  • B41F—PRINTING MACHINES OR PRESSES
  • B41F7/00—Rotary lithographic machines
  • B41F7/02—Rotary lithographic machines for offset printing
  • B41F7/12—Rotary lithographic machines for offset printing using two cylinders one of which serves two functions, e.g. as a transfer and impression cylinder in perfecting machines
• • 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
  • B41P2213/10—Constitutive elements of driving devices
  • B41P2213/20—Gearings
• • 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
  • B41P2213/10—Constitutive elements of driving devices
  • B41P2213/20—Gearings
  • B41P2213/206—Planetary gears
• • 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
  • B41P2213/734—Driving devices for multicolour presses each printing unit being driven by its own electric motor, i.e. electric shaft

Definitions

• the invention relates to a drive of a printing unit according to the preamble of claim 1.
• JP 56-021860 A discloses a printing group with a form transfer cylinder and impression cylinder, each of the three cylinders being driven by its own drive motor.
• DE 196 03663 A1 shows a bridge printing unit, each with printing unit cylinders driven by its own drive motor.
• the forme cylinders are each driven via a drive pinion assigned to the drive motor, the transfer cylinders are driven via coaxially arranged stators and cylinder pins designed as rotors.
• EP 06 99 524 A2 discloses individually driven form, transfer and impression cylinders, each with its own drive motor, with extensions of the cylinder journals designed as rotors interacting with stators.
• DE 3409 194 A1 discloses a drive for a pair of cylinders, a straight toothed pinion of a drive motor driving on a straight toothed gear of a transfer cylinder, from which a helical toothing is used to drive it to a forme cylinder.
• a drive of a printing unit is known from DE 19755 316 C2, two interacting cylinders each having a drive motor and a gear arranged between the drive motor and the respective cylinder.
• the invention has for its object to provide a drive for a printing unit.
• the object is achieved by the features of claim 1.
• the drive ensures a high degree of flexibility in operation and is nevertheless designed to be as cost-effective and standardizable as possible.
• the drive motors can be designed to be lower and therefore more cost-effective, and can be designed under certain conditions for the same performance requirements and / or the same operating speeds.
• the arrangement and dimensioning of gears between all cylinders and the drive motors is particularly advantageous with regard to maintaining the optimal speed range for the drive motors.
• the engines run in a preferred range between 1,000 and 3,000 rpm, in particular between 1,500 and 2,500 rpm.
• the areas mentioned are values for operation during production. For set-up, these can of course be considerably lower.
• reduction gears designed as planetary gears is suitable in a particularly advantageous embodiment with regard to a compact installation space and a large range of transmission ratios to be realized.
• each gearbox is encapsulated for itself. This can be structurally separate from the drive motor, or else take place that the drive motor and gearbox are combined into one structural unit.
• the gear mechanism of a cylinder which is to be moved axially for the purpose of adjusting the side register is designed such that the axial movement has no effect on the circumferential register, as is the case, for example, with helical teeth i. d. R. is the case.
• the design of the axially displaceable gear is particularly advantageous, especially in connection with the individual encapsulation and the individually driven cylinders, since on the one hand an oil space extending over several components is avoided and on the other hand considerable space savings can be made.
• Figure 1 shows a first embodiment for driving a printing unit using epicyclic gears (shown symbolically).
• Fig. 2 shows a second embodiment for driving a printing unit Use of gearboxes with external teeth
• Fig. 3 shows a third embodiment for driving a printing unit using internally toothed stationary gear
• a printing unit of a printing press in particular a rotary printing press, has a first cylinder 01, e.g. B. a forme cylinder 01, which has at least on one end face a rotatably mounted pin 02 in a frame, not shown.
• the forme cylinder 01 is operatively connected at the end via a gear 03 to a drive motor 04 for the purpose of a rotary drive.
• the forme cylinder 01 interacts with a second cylinder 06, which likewise has a pin 07 rotatably mounted in a frame at least on one of its end faces.
• the second cylinder 06 is also operatively connected at the end via a gear 08 to a drive motor 09 for the purpose of a rotary drive.
• the second cylinder 06 can be an impression cylinder 06, a pressure point (not designated) being formed between the form and impression cylinders 01, 06.
• the second cylinder 06 is the transfer cylinder 06 leading as a printing ink, e.g. B. executed as a blanket cylinder.
• the two cylinders 01; 06 are not positively connected to one another and are mechanically independent of one another from the respective drive motor 04; 09 via the respective gear 03; 08 driven.
• the transfer cylinder 06 acts via a printing material web, not shown, for. B. a paper web, together with a third cylinder 11, which is also at least on one of its end faces, for. B. is rotatably mounted in the frame by means of a pin 12.
• the third cylinder 11 serves as the transfer cylinder 06
• Counter-pressure cylinder 06 and, in the case of a double printing unit for simultaneous perfecting and counter-printing in the "rubber-against-rubber" principle, can be designed as a further transfer cylinder 11 which interacts with a further forme cylinder, not shown.
• the third cylinder 11 is designed as a cylinder 11 that does not carry any printing ink, for example as a satellite cylinder 11, which cooperates on its circumference with other cylinder pairs corresponding to the cylinder pair 01, 06.
• the third cylinder 11 is without a mechanical drive connection (with the exception of the friction gear, which form the rolling cylinders 06; 11) to the first two cylinders 01; 06 drivable.
• the third cylinder 11 is also operatively connected via a gear 13 to its own drive motor 14 for the purpose of a rotary drive.
• at least the forme cylinder 01 is designed to be movable along its axial direction by up to an amount ⁇ L for the purpose of setting the side register, and preferably by a zero position in both directions.
• This amount ⁇ L is preferably between 0 and ⁇ 4 mm, in particular between 0 and ⁇ 2.5 mm. This is done by means of a drive device, not shown, which is preferably arranged on the side of the cylinder 01 opposite the rotary drive.
• the gear 03; 08; 13 each have at least one pair of positively cooperating links with normal surface closure, which in principle operate in different ways, e.g. B. can be implemented as a traction mechanism or gear transmission.
• Advantageous embodiments are described using the following exemplary embodiments (FIGS. 1 to 3).
• the gear 03; 08; 13 as gear 03; 08; 13 with coaxial axis position e.g. B. as a planetary gear such as a planetary gear 03; 08; 13 executed (not shown in detail in FIG. 1, but only symbolically).
• the axes of the gear 03; 08; 13 and the shafts of the drive motors 04; 09; 14 are each coaxial to the axis of rotation of the cylinders 01; 06; 11 arranged.
• the compact design by means of gears 03; 08; 13 with coaxial axis position, in particular the planetary gear 03; 08; 13, allows an extremely space-saving arrangement.
• the planet gear 03; 08; 13 can also with the drive motors 04; 09; 14 form a structural unit and be connected directly to it.
• each transmission 03; 09; 13 encapsulated for itself by a cover 16 (indicated by dashed lines in the figures), so that neither dirt penetrate into the inside, nor possibly any lubricant present inside, in particular low-viscosity lubricant such as B. oil, can escape to the outside from the lubricant chamber thus formed.
• the individual encapsulation offers great advantages in terms of maintenance, replacement of individual components and the compact design of the drive system.
• the encapsulation and the lubricant simultaneously enable the low-friction process of the gear connection and low wear with axial movement.
• the gears 03; 08; 13 as gear 03; 08; 13 with a parallel axis position, in particular as a wheel gear 03; 08; 13 with fixed axes.
• One on the pin 02; 07; 12 of the respective cylinder 01, 06; 11 rotatably arranged gear 17 meshes with a second gear 18, z. B. a pinion 18 which rotatably with a shaft of the drive motor 04; 09; 14 is connected.
• the Gear 03; 08; 13 can also have a larger wheel chain or other gear parts of a different type.
• the gears 17; 18 can, especially in the case of the transfer and the impression cylinder 06; 11 assigned gears 17; 18, for the sake of greater resilience, be helically toothed.
• the gear 03; 08; 13 according to the second embodiment can also be designed as a form-locking belt drive or have such a variant in a variant, not shown.
• the gear 03; 08; 13 as gear 03; 08; 13 be formed with a coaxial axis position.
• the gear wheel 19 can also be omitted, the axes of the drive motor 04; 09; 14 and the respective cylinder 01; 06, 11 in this case can run parallel and not coaxially.
• At least one pair of interacting members of the gear 03 associated with the forme cylinder 01 is straight-toothed and enables the two members to move relative to one another in the axial direction.
• a pair of links can be a sun gear (not shown in FIG. 1) and one or more planet gears
• the second exemplary embodiment FIG. 2
• the pinion 18 and the gear 17 gear 17 or 18
• the members of the gear 03 associated with the forme cylinder 01 which are movable relative to one another with respect to an axial movement of the forme cylinder 01 are dimensioned such that in no position of the forme cylinder 01 which is approved for operation, the maximum load of the positive engagement of the members which are movable with respect to one another, eg B. the toothing, with respect to wear and break resistance is exceeded.
• the width is selected so that when the forme cylinder 01 is axially displaced by an amount ⁇ ⁇ L, the toothing is adequately covered.
• the forme cylinder 01 can thus be moved axially without the drive motor 04; 09; 14 and a housing of the gear 03 must also be moved.
• a further development of the drive is particularly advantageous, wherein between the transfer cylinder 06 and the associated transmission 08 an angle change and / or offset compensating coupling, for. B. a double joint or a two spring assemblies and a web having a clutch is arranged. A pivoting of the transfer cylinder 06 despite the fixed arrangement of the gear 08 and drive motor 09 is thus possible.
• rollers or the roller of the inking unit 21 which is only indicated schematically, are driven by a further drive motor 23 via a gear 24.
• a gear 24 This is shown in FIG. 2 as an example for the other exemplary embodiments.
• the individual encapsulation is of great advantage with regard to accessibility and contamination of the printing press.
• dampening unit 22 which may be present.
• the inking unit and dampening unit rollers or cylinders can, if appropriate, also be driven together by a drive motor.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Retarders (AREA)
• Rotary Presses (AREA)
• Gear Transmission (AREA)
• Electronic Switches (AREA)
• Printers Or Recording Devices Using Electromagnetic And Radiation Means (AREA)
• Impact Printers (AREA)

Applications Claiming Priority (5)

Publications (2)

Family

ID=26008907

Family Applications (1)

Country Status (9)

Families Citing this family (6)

Family Cites Families (12)

• 2002
  • 2002-02-05 RU RU2003131690/12A patent/RU2262449C2/ru not_active IP Right Cessation
  • 2002-02-05 US US10/466,111 patent/US20040074406A1/en not_active Abandoned
  • 2002-02-05 DE DE50201163T patent/DE50201163D1/de not_active Expired - Lifetime
  • 2002-02-05 ES ES02706668T patent/ES2229094T3/es not_active Expired - Lifetime
  • 2002-02-05 WO PCT/DE2002/000413 patent/WO2002076741A1/fr active IP Right Grant
  • 2002-02-05 EP EP02706668A patent/EP1372962B1/fr not_active Expired - Lifetime
  • 2002-02-05 AT AT02706668T patent/ATE277762T1/de active
  • 2002-02-05 JP JP2002575231A patent/JP2004518567A/ja active Pending
  • 2002-02-05 CN CNB028038746A patent/CN1220587C/zh not_active Expired - Fee Related

Non-Patent Citations (1)

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