EP2125372A1 - Rouleau doté d'une enveloppe mobile à oscillation axiale, notamment rouleau distributeur - Google Patents

Rouleau doté d'une enveloppe mobile à oscillation axiale, notamment rouleau distributeur

Info

Publication number
EP2125372A1
EP2125372A1 EP08707183A EP08707183A EP2125372A1 EP 2125372 A1 EP2125372 A1 EP 2125372A1 EP 08707183 A EP08707183 A EP 08707183A EP 08707183 A EP08707183 A EP 08707183A EP 2125372 A1 EP2125372 A1 EP 2125372A1
Authority
EP
European Patent Office
Prior art keywords
roller according
roll
hydraulic
roll axis
pump
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.)
Withdrawn
Application number
EP08707183A
Other languages
German (de)
English (en)
Inventor
Manfred KÜHNE
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.)
Hydac System GmbH
Original Assignee
Hydac System GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hydac System GmbH filed Critical Hydac System GmbH
Publication of EP2125372A1 publication Critical patent/EP2125372A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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

Definitions

  • Roller with axially oscillating movable casing body in particular distribution roller
  • the invention relates to a roller with an axially oscillating movable casing body, in particular Verreibwalze, wherein within the casing body mounted on the roller axle drive is provided which generates the oscillating axial movement of the casing body via a transmission device.
  • Castor rollers are used in printing machines to distribute the ink during printing.
  • Verreibwalzen are not provided with its own rotary drive, but the rotational movement is generated from the outside by friction with other rotating machine parts.
  • the roller-internal drive for generating the oscillating axial movement of the sheath body based in the prior art on a gear set, coupled with a cam gear that generates the axial oscillating movement.
  • gear sets are susceptible to interference. If, during operation, a failure of such a drive occurs, the distributor roller may lock, resulting in damage to other machine parts.
  • the invention has the object to provide a roller with axially oscillating movable shell body available, the despite a simple design of the roller-internal drive ensures a particularly high level of operational safety.
  • an essential feature of the invention is that a gear element guided in the axial direction is coupled to the jacket body via a driver arrangement such that it is freely rotatable relative to the transmission element, but is capable of transmitting the rearward side of the transmission element. and forthcoming movement on the jacket body is in operative connection with this. Due to the direct coupling connection between the reciprocating gear element and the driver arrangement, on the one hand, a particularly simple design of the drive system results.
  • the driver arrangement is freely rotatable relative to the reciprocating transmission element eliminates the risk that, in the event of a possible drive failure, in which the reciprocating movement of the transmission element comes to a standstill, there is a risk of blockage Rotary movement of the jacket body, since this can continue to rotate even when the transmission element is stationary, so that no damage caused by blocking the roller damage other equipment parts, but in case of malfunction, only the oscillation movement of the jacket body is omitted.
  • the arrangement may be such that the driver arrangement has an annular body surrounding the roller axis with at least one friction body resting against the jacket body under a radial force, which transmits a reciprocating movement with the jacket body. forms the frictional connection.
  • Such embodiments are characterized by a particularly simple and compact design.
  • the drive is formed by a hydraulic system.
  • a hydraulic system which allow a particularly compact design, can be particularly easily integrated into the interior space between the shell body and the roll axis.
  • Such systems also allow a particularly simple generation of the reciprocating movement of the transmission element by means of a double-acting hydraulic cylinder.
  • a synchronous cylinder is provided as a hydraulic cylinder, the continuous piston rod forms the transmission element connected to the driver assembly.
  • the hydraulic system has a hydraulic pump mounted in the interior of the jacket tube on the roll axis and drivable by the rotational movements of the jacket tube when it is driven in both directions of rotation.
  • the arrangement may be such that a second annular body surrounding the roller axis is provided as a pump drive, which is rotatable by the jacket body by means of Reibschl ⁇ ss, and that a rotatable by the second annular body swash plate is present, through which the axial piston pump designed as a hydraulic actuated is.
  • a second annular body surrounding the roller axis is provided as a pump drive, which is rotatable by the jacket body by means of Reibschl ⁇ ss, and that a rotatable by the second annular body swash plate is present, through which the axial piston pump designed as a hydraulic actuated is.
  • the control of the reciprocating axial movement generating, double-acting hydraulic cylinder can be done in a particularly advantageous manner that the both sides of the piston of the cylinder adjacent pressure chambers alternately connectable to the pressure side of the hydraulic pump via a stored on the roll axis 4/2 way valve are, which is hydraulically controllable as a shuttle valve in dependence on the pressure prevailing in the pressure chambers of the cylinder fluid pressure.
  • a 4/2-way valve is provided with detent, with a suitable design, a desired waveform of the reciprocating motion can be realized.
  • a channel is present, which extends in the axial direction between the tank of the pump and a located at the end of the roll axis fluid port through which the tank with the corresponding fluid reservoir can be filled and the reservoir pressure in the tank übermon wachbar.
  • Fig. 1 is a perspective oblique view of the embodiment of the roller according to the invention to be described here;
  • FIG. 2 shows a simplified hydraulic circuit diagram of a hydraulic system to be used in the exemplary embodiment
  • Fig. 3 is a perspective view similar to Figure 1 in the overall view of the embodiment, but with its outer jacket body omitted;
  • FIG. 4 shows a longitudinal section, drawn in contrast on an enlarged scale and broken away, of only the bearing end region of the exemplary embodiment shown in FIGS. 1 and 3 on the right side;
  • FIG. 5 shows a partial longitudinal section of the drive section which adjoins the storage end region of FIG. 4, further enlarged and broken away from FIG. 4;
  • FIG. - Fig. 6 shows a comparison with FIG. 5 in a slightly smaller scale and broken subscribed further partial longitudinal section, which adjoins the portion of Fig. 5 and
  • Fig. 7 shows the Lagerungsendab mustard of Fig. 4 opposite other storage section, compared with Fig. 4 drawn on a smaller scale and also shown in broken longitudinal section.
  • Fig. 1 shows an overall view of the embodiment of the roller according to the invention to be described here with a roller shaft 1, which is mounted non-rotatably in a printing press, not shown.
  • the roll axis 1 has a centrally located fluid connection 3, on which, see Fig. 7, a extending along the roll axis channel 5 opens, will be discussed later.
  • a continuous jacket body 7 which is formed in the embodiment by a precision steel tube.
  • the jacket body 7 is during operation of the associated printing machine rotated by the running over the roller printing material, the speed can be up to 2,500 rev / min.
  • the oscillation frequency may be up to 2 Hz, for example.
  • FIGS. 3 to 7 are an overall view showing the inner device, with a removed sheath body 7, namely a in FIG. 1 shows the storage end region 9 located on the right side and a second storage end region 11 on the left side.
  • Fig. 4 Details of the Lagerendend Studes 9 are shown in Fig. 4. It is, starting from the outer end, to a rolling bearing unit, which is provided in its inner roller chamber 13 with a lifetime lubrication.
  • the bearing unit has an inner ring 15 secured against axial movement on the roll axis 1 and an outer bearing body 17, which is rotatable about bearing rollers 19 about the inner ring 15 and axially displaceable along the roll axis 1.
  • the outer periphery of the outer bearing body 17 forms the abutment surface for the inner wall of the sheath body 7.
  • On both sides of the rolling bearing unit located circlips 21 form the axial securing between sheath body 7 and rolling bearing unit, so that sheath body 7 and outer bearing body 17 can move back and forth together in the axial direction ,
  • the transmission device is coupled to the shell body 7 via a first driver assembly which has a roll axis 1 surrounding, rotatable relative to this annular body 23.
  • a first driver assembly which has a roll axis 1 surrounding, rotatable relative to this annular body 23.
  • the annular body 23 has a clamping device 25, which by means of wedge surfaces 27 and clamping screws 29 allows a widening of the annular body 23 in regions so as to give a reciprocating motion transmitting frictional engagement.
  • the transmission device has a gear element 31 which can be driven in a reciprocating manner and whose end body 33, which is displaceably guided on the roller shaft 1, interacts with a coupling ring 37 connected to the ring body 23 via a coupling ring 35, whereby the coupling ring 37 associated with the ring body 23 is rotatable about the coupling ring 35.
  • the end body 33 and the coupling ring 35 only axial forces on the ring body 23 and thus on the casing tube 7, while the latter is freely rotatable relative to the transmission element 31.
  • Fig. 5 shows that the reciprocating gear member 31 is formed by the end of a piston rod 39. It is the continuous piston rod of a hydraulic Gleichgangzylinders 41, the pressure chambers 45 and 47 located on both sides of its piston 43 are alternately acted upon by fluid pressure.
  • Fig. 2, 6 and 7 illustrate the hydraulic system, which is part of the Gleichgangzylinder 41.
  • the pressure chambers 45 and 47 are connected via lines 49 and 50 to the load ports of a 4/2-way valve 51, which in turn connected to the pressure line 53 and the Tank line 55 of a hydraulic pump 57 is connected.
  • This is the so-called reversing type, which promotes both directions of rotation.
  • the present embodiment is, more specifically, an axial piston pump.
  • the 4/2-way valve 51 is hydraulically controllable as a shuttle valve via control lines 59 and 61, via which prevails in the pressure chambers 45 and 47 of the cylinder 41 pressure at the spool ends 63 and 65 (FIG. 6) of the spool 66 of the valve 51 to Effect occurs and result in periodic switching operations for the oscillating movement of the piston 43 and the piston rod 39 of the cylinder 41.
  • a ball catch 67 allows adaptation of the switching characteristic of the valve 51.
  • FIG. 7 illustrates not only the structure of the outer storage end region 11, but also details of the drive of the hydraulic pump 57.
  • the bearing end region 11 corresponds in its construction to the opposite storage end region 9, so that a renewed description is unnecessary.
  • the drive of the pump 57 via a second driver assembly which, as the axial forces on the jacket body 7 transmitting, previously described driver assembly comprising an annular body 69 which surrounds the roll axis 1 and, like the annular body 23, by a clamping device 71 partially expanded with which the jacket body 7 forms a frictional connection, so that the annular body 69 can be rotated by the jacket body 7.
  • This rotational movement is transmitted via a driver member 73 to a rotatable on the roll axis 1 swash plate 75, which is common in the case of swashplate-operated axial piston pump type corresponding piston movements of the pump 57 generates, which is not shown in detail.
  • the hydropump 57 is provided with an integrated fluid tank 77, which receives a supply volume of hydraulic fluid which circulates in operation in the hydraulic system.
  • the tank 77 communicates with the channel 5 in the interior of the roll axis 1, so that the filling of the tank 77 can take place via its connection 3 and a pressure monitoring can be carried out at the connection 3 during operation. to monitor the filling pressure.
  • the solution according to the invention is characterized in that the entire hydraulic drive is integrated together with the mechanical transmission of the axial movement in the roller body. Except for any intended hydraulic connections, which lead out of the shell body 7, in addition to the transmission device described above, the entire hydraulic system in the shell body 7 is integrated. As a result, a uniform mass distribution can be achieved within the roll body and the roller body can be driven by third-rotation rotating, without the need for an external independent rotary drive.

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)

Abstract

L'invention concerne un rouleau doté d'une enveloppe (7) mobile à oscillation axiale, notamment un rouleau distributeur, un entraînement (41) logé sur l'axe du rouleau (1) se trouvant dans l'enveloppe, cet entraînement générant le mouvement d'oscillation axiale de l'enveloppe (7) par l'intermédiaire d'un dispositif de transmission. L'invention est caractérisée en ce que le dispositif de transmission comporte un élément de transmission (39) guidé dans un mouvement alternatif dans le sens axial le long de l'axe du rouleau (1), cet élément de transmission étant couplé à l'enveloppe par l'intermédiaire d'un dispositif entraîneur (23) qui pivote librement relativement à l'élément de transmission (39) et qui est en liaison active avec l'enveloppe pour transmettre le mouvement alternatif.
EP08707183A 2007-01-30 2008-01-22 Rouleau doté d'une enveloppe mobile à oscillation axiale, notamment rouleau distributeur Withdrawn EP2125372A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200710004411 DE102007004411A1 (de) 2007-01-30 2007-01-30 Walze mit axial oszillierend bewegbarem Mantelkörper, insbesondere Verreibwalze
PCT/EP2008/000450 WO2008092584A1 (fr) 2007-01-30 2008-01-22 Rouleau doté d'une enveloppe mobile à oscillation axiale, notamment rouleau distributeur

Publications (1)

Publication Number Publication Date
EP2125372A1 true EP2125372A1 (fr) 2009-12-02

Family

ID=39166714

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08707183A Withdrawn EP2125372A1 (fr) 2007-01-30 2008-01-22 Rouleau doté d'une enveloppe mobile à oscillation axiale, notamment rouleau distributeur

Country Status (3)

Country Link
EP (1) EP2125372A1 (fr)
DE (1) DE102007004411A1 (fr)
WO (1) WO2008092584A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008060541A1 (de) 2008-12-04 2010-06-10 Hydac System Gmbh Hydraulische Antriebsvorrichtung

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1330636C (fr) * 1988-10-07 1994-07-12 James R. Kemp Machine a imprimer a balladeur et mode d'exploitation connexe
US5125340A (en) 1990-09-21 1992-06-30 Rockwell International Corporation Oscillator apparatus for imparting axial oscillations to a roller
DE19603765A1 (de) * 1996-02-02 1997-08-07 Heidelberger Druckmasch Ag Vorrichtung zum axialen Bewegen einer Reibwalze
DE102005019266A1 (de) * 2004-05-24 2005-12-15 Bosch Rexroth Aktiengesellschaft Antrieb für eine Farbwalze
DE102006021749A1 (de) * 2006-05-10 2007-12-06 Koenig & Bauer Aktiengesellschaft Vorrichtung zum Erzeugen einer axialen Oszillationsbewegung einer rotierenden Walze einer Druckmaschine sowie Walze mit einer solchen Vorrichtung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2008092584A1 *

Also Published As

Publication number Publication date
WO2008092584A1 (fr) 2008-08-07
DE102007004411A1 (de) 2008-07-31

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