EP1655134A1 - Cylindre ou rouleau de machine d'impression - Google Patents

Cylindre ou rouleau de machine d'impression Download PDF

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Publication number
EP1655134A1
EP1655134A1 EP05109725A EP05109725A EP1655134A1 EP 1655134 A1 EP1655134 A1 EP 1655134A1 EP 05109725 A EP05109725 A EP 05109725A EP 05109725 A EP05109725 A EP 05109725A EP 1655134 A1 EP1655134 A1 EP 1655134A1
Authority
EP
European Patent Office
Prior art keywords
cylinder
temperature control
control medium
channel
medium channel
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
EP05109725A
Other languages
German (de)
English (en)
Other versions
EP1655134B1 (fr
Inventor
Jens Hieronymus
Jürgen Michels
Dieter Schaffrath
Wolfgang Schönberger
Bernhard Schwaab
Michael Thielemann
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
Application filed by Heidelberger Druckmaschinen AG filed Critical Heidelberger Druckmaschinen AG
Publication of EP1655134A1 publication Critical patent/EP1655134A1/fr
Application granted granted Critical
Publication of EP1655134B1 publication Critical patent/EP1655134B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B41F13/08—Cylinders
    • B41F13/22—Means for cooling or heating forme or impression cylinders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices
    • B41F31/002—Heating or cooling of ink or ink rollers

Definitions

  • the present invention relates to a printing machine cylinder or a printing press roller, with at least one temperature control medium flowed through by a temperature control medium and a peripheral cylinder channel, according to the preamble of claim 1.
  • EP 0 557 245 A1 (see in particular FIG. 2) describes such a printing press cylinder.
  • the cylinder passage acts as a so-called chucking passage.
  • Temperierstoffkanäle are introduced, which form a along the circumference of the printing press cylinder extending row. This series is interrupted by the cylinder channel, which thus represents a local disturbance of the thermal symmetry of the cylinder profile and causes uneven thermal expansion of the cylinder profile. The uneven thermal expansion results in concentricity errors, which in turn result in reduced print quality.
  • EP 1 218 187 B 1 in order to even out a temperature profile of a temperature-controlled forming or transfer cylinder which fluctuates in the circumferential direction, it is proposed to make its outer wall so thick that one or more clamping channels of the forming or transfer cylinder lie completely within the outer wall. Although this measure may be promising and practicable for very small span channels, but not for larger span channels.
  • the invention is therefore an object of the invention to provide a printing press cylinder or a printing press roller with good concentricity even with relatively large dimensions of the cylinder channel.
  • the printing press cylinder according to the invention or the printing press roll according to the invention at least one tempering medium channel through which a temperature control medium flows and a circumferential cylinder channel are characterized in that the tempering medium channel is designed and arranged such that the tempering medium channel at least reduces a thermal asymmetry caused by the cylinder channel.
  • the thermal expansion of the cylinder or roll profile is made uniform, so that the required concentricity accuracy of the printing press cylinder or the printing press roll is maintained.
  • the cylinder channel can no longer lead to thermally induced distortion of the cylinder or roll profile due to the countermeasure taken.
  • the temperature control medium channel is arranged and configured such that the temperature control medium channel essentially compensates for the thermal asymmetry caused by the cylinder channel.
  • Temperierstoffkanal is arranged and designed such that the Temperierstoffkanal a thermally induced cylinder circumferential delay at least reduced.
  • Temperierstoffkanal is arranged and designed such that the Temperierstoffkanal substantially prevents the thermally induced cylinder circumferential delay.
  • a further temperature control medium channel is arranged and configured in such a way as the temperature control medium channel described first.
  • the two temperature control medium passages are flowed through by the temperature control medium in accordance with the counterflow principle.
  • each Temperierstoffkanal extends eccentrically and parallel to the cylinder axis of rotation.
  • each Temperierstoffkanal is arranged such that the or each Temperierstoffkanal radially further inside than a number of other Temperierstoffkanäle.
  • cylinder channel is the only cylinder channel of the printing press cylinder or the printing press roller.
  • cylinder channel is a clamping channel for mounting a cylinder elevator on the printing press cylinder or on the printing press roller.
  • the invention also includes a printing press, which comprises a printing form cylinder and an inking roller, which rests in the printing operation on the printing form cylinder and which is formed according to the printing press roller of the invention or one of its developments.
  • the invention relates to a method for controlling the temperature of a printing press cylinder or a printing press roller with at least one tempering medium flowed through by a temperature control and a peripheral cylindrical channel, wherein the Temperierstoffkanal is used such that the Temperierstoffkanal a caused by the cylinder channel thermal imbalance at least reduced.
  • the temperature control medium channel can be used in such a way that the temperature control medium channel essentially compensates for the thermal asymmetry caused by the cylinder channel and / or at least reduces and preferably substantially prevents a thermally induced circumferential deflection of the cylinder.
  • FIG. 1 shows a printing press 1 for offset printing in a section.
  • a printing unit with a forme cylinder 2 and an anilox inking unit is shown.
  • the anilox inking unit comprises an anilox roller 3 and an inking roller 4, which abuts against the anilox roller 3 and in the printing operation also on the forme cylinder 2.
  • the forme cylinder 2, the anilox roller 3 and the inking roller 4 are equal in diameter to each other.
  • a rubber blanket 5 is clamped by means of a clamping device as a cylinder elevator.
  • the clamping device is seated in a clamping channel 6 of the inking roller 4 and comprises clamping shafts 7, in which the ends of the blanket 5 are mounted with their edge strips.
  • tempering medium channels 10 running parallel to the axis of rotation 9 are introduced as bores.
  • the Temperierstoffkanäle 10 form a row along the roll circumference and are arranged so close to the peripheral surface of the inking roller 4, that the series of the clamping channel 6 is interrupted.
  • the clamping channel 6 protrudes radially into the row of Temperierstoffkanälen 10.
  • Temperierstoff additional channels 11 are introduced, which are also made as bores and parallel to the axis of rotation 9.
  • the temperature control additional channels 11 are arranged radially further than the other Temperierstoffkanäle 10 inside, d. That is, the pitch circle on which the temperature control auxiliary channels 11 are situated is smaller than the pitch circle on which the other temperature control medium passages 10 rest.
  • the temperature control additional channels 11 are arranged below the clamping channel 6 and at least partially within a circular sector 12 whose center forms the axis of rotation 9 and the central angle is determined by the clamping channel 6, against which the imaginary legs of the circular sector 12. In the exemplary embodiment shown, each temperature-control additional channel 11 lies approximately halfway inside the circular sector 12.
  • the Temperierstoffkanäle 10 are associated with each other in pairs and form line loops 13, each with a flow line 14 and a return line 15 (see Figure 2).
  • FIG. 2 shows by means of directional arrows that the liquid temperature control medium, which is preferably water, flows in the respective feed line 14 in the opposite direction relative to the associated return line 15, as corresponds to the countercurrent principle.
  • the liquid temperature control medium which is preferably water
  • FIG. 3 shows in a coordinate system the effect of the countercurrent principle.
  • the coordinate system shows the temperature (ordinate) as a function of the location (abscissa).
  • T 14 means the flow temperature of the temperature control during the flow through the flow line 14, T 15, the return temperature of the temperature control during its return through the return line 15 and T r at the respective location of the two temperatures T 14 , T. 15 as a result of temperature compensation resulting temperature of the peripheral surface of the inking roller 4.
  • l 1 denotes a first end of the roll and l 2 denotes a second end of the roll 8 of the main body 8, the axial length 1 is entered in Figure 2.
  • FIG. 1 denotes a first end of the roll
  • l 2 denotes a second end of the roll 8 of the main body 8, the axial length 1 is entered in Figure 2.
  • the flow temperature T 14 of the temperature control medium drops from the first roll end l 1 to the second roll end l 2 and the return temperature T 15 drops from the second roll end l 2 to the first roll end l 1 so that essentially one and the same resulting temperature T r on the circumferential surface of the inking roller 4 is established at each location lying between the two roller ends l 1 , l 2 .
  • the surface temperature of the inking roller 4 is thus kept substantially constant by means of the Temperierstoffkanäle 10 and the Temperierstoff additional channels 11 both in the circumferential direction and in the axial direction.
  • FIG. 2 further shows that the line loops 13 are not connected in series with each other, but are connected in parallel.
  • a first journal 16 and a second journal 17 are attached on the main body 8.
  • deflection channels 18 are introduced, which connect the flow lines 14 with the return lines 15.
  • FIG. 3 shows that a rotary feedthrough 19, via which the inking roller 4 is integrated into a temperature control circuit, is connected to the first journal 16.
  • a central flow pipe 20 is arranged, via which the temperature control from the rotary feedthrough 19 flows into a common distribution space 21 of the flow lines 14.
  • the distribution space 21 is introduced into the main body 8 and connected to each supply line 14 via a respective longitudinal bore 22 in the base body 8 and a radial connecting channel 23 in the first journal 16.
  • Return annular gap 24 is connected to each return line 15 via a respective radial connecting channel 25 and a transverse bore 26 in the first journal 16. From the return annular gap 24, the temperature control from the inking roller 4 flows back into the rotary feedthrough 19.
  • FIG. 5 shows a second embodiment as a modification of the first embodiment shown in Figures 1 to 4.
  • the supply lines 14 of the first embodiment are combined to form a first annular gap 27 and the return lines 15 of the first embodiment are combined to form a second annular gap 28.
  • the main body 8 is divided into a core 29 and a shell 30, wherein the two annular gaps 27, 28 are disposed between the core 29 and the shell 30 and separated by a thin wall 31.
  • the profile of the shell 30 has a projection 32 which is complementary to a substantially U-shaped recess 33 in the profile of the core 29.
  • temperature control additional channels 11 are introduced, one of which forms a flow line and the other a return line.
  • the temperature control additional channels 11 are placed in the said modification relative to the clamping channel 6 substantially the same as in the first embodiment.
  • the amount of ink transferred from the anilox roller 3 to the inking roller 4 is controlled by adjustment and adjustment of an existing between the anilox roller 3 and the inking roller 4 temperature difference.
  • the surface temperature of the anilox roller 3 is changed and the surface temperature of the inking roller 4 is kept as constant as possible.
  • the Temperierstoffkanäle 10 (the first embodiment) or annular gaps 27, 28 (of the second embodiment) and the temperature control additional channels 11 form a tempering, which serves said constant maintenance of the surface temperature of the inking roller 4.
  • the already mentioned tempering circuit in which the inking roller 4 is integrated, with a closed loop, z. B. in the form of a two-point regulator or a similar thermostat, which closed loop ensures that the temperature of circulating in the temperature control circuit by means of a pump temperature control and thus the surface temperature of the inking roller 4 remains constant even with changing ambient temperature ,
  • Said surface temperature is kept constant both along the circumference of the inking roller 4 and along its axis of rotation 9.
  • the clamping channel 6 causes local heat losses and would be a thermal impurity without the countermeasure taken, which would cause uneven thermal expansion of the roll cross section (roll distortion) and thus an unacceptably high deviation of the roll cross section from the ideal circular shape (concentricity error). This concentricity error would in turn result in a noticeable reduction in print quality.
  • Temperierstoff additional channels 11 which are arranged such that they specifically compensate for the thermal losses caused by the clamping channel 6. Due to the presence of the temperature control additional channels 11, the thermal expansion of the cross section of the inking roller 4 can be evened such that their concentricity error is at most 0.01 millimeters, which is quite acceptable in terms of print quality achievable therewith.
  • Another advantage of using the blanket 5 is in the ease of handling. With wear of the rubber-elastic, soft peripheral surface of the inking roller 4, which is heavily stressed by the rough grid structure of the anilox roller 3, the operator can even replace said peripheral surface forming blanket 5 of the inking roller 4 and stretch on the latter a replacement blanket. On the other hand, if the worn peripheral surface were formed by the vulcanized roll cover, the entire inking roller 4 would have to be removed from the printing press 1 in order to replace the worn roller cover by the roll manufacturer with a fresh roll cover. The uninstalling and reinstallation of the inking roller 4 would be cumbersome due to the considerable size of the inking roller 4 and would cause long machine downtime, which is avoided by using the blanket 5.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Rotary Presses (AREA)
  • Rolls And Other Rotary Bodies (AREA)
EP05109725A 2004-11-05 2005-10-19 Cylindre ou rouleau de machine d'impression Not-in-force EP1655134B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102004054031A DE102004054031A1 (de) 2004-11-05 2004-11-05 Druckmaschinenzylinder oder -walze

Publications (2)

Publication Number Publication Date
EP1655134A1 true EP1655134A1 (fr) 2006-05-10
EP1655134B1 EP1655134B1 (fr) 2008-03-26

Family

ID=35735159

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05109725A Not-in-force EP1655134B1 (fr) 2004-11-05 2005-10-19 Cylindre ou rouleau de machine d'impression

Country Status (3)

Country Link
EP (1) EP1655134B1 (fr)
AT (1) ATE390282T1 (fr)
DE (2) DE102004054031A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101428494B (zh) * 2007-11-09 2011-06-08 吴小华 全息模压版辊
CN102653167A (zh) * 2011-03-03 2012-09-05 海德堡印刷机械股份公司 用于印刷机的墨斗
EP3480013A1 (fr) * 2017-11-03 2019-05-08 Rotatek Printing Machinery, S.L.U. Machine d'impression offset et procédé d'impression correspondant
CN114466747A (zh) * 2019-07-26 2022-05-10 西康制造有限公司 具有均匀冷却辊的印刷设备

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005043098A1 (de) 2005-09-10 2007-03-15 Man Roland Druckmaschinen Ag Druckmaschinenzylinder und Verfahren zur Kompensation thermisch bedingter Druckmaschinenzylinderdeformationen
WO2011015480A1 (fr) 2009-08-04 2011-02-10 Kba-Metronic Aktiengesellschaft Douille d'un cylindre
CN109624486B (zh) * 2018-12-19 2023-08-04 中山市优绿智得数码科技有限公司 一种加热辊

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2043995A (en) * 1932-09-12 1936-06-16 John G Goedike Method of and means for dampening printing surfaces of planographic and analogous presses
EP0557245A1 (fr) 1992-02-20 1993-08-25 Grapha-Holding Ag Cylindre pour machines de traitement de matériau en bande
EP0574103A1 (fr) * 1992-06-04 1993-12-15 Komori Corporation Presse à imprimer
EP1218187B1 (fr) 1999-10-08 2003-11-19 Koenig & Bauer Aktiengesellschaft Cylindre de presse rotative
DE202004008903U1 (de) * 2004-06-04 2004-08-12 Heidelberger Druckmaschinen Ag Druckmaschine

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2658380B2 (de) * 1976-12-23 1979-02-08 Grapho-Metronic Mess- Und Regeltechnik Gmbh & Co Kg, 8000 Muenchen Farbwalze für Druckmaschinen
EP0612617B1 (fr) * 1993-02-18 1996-09-25 Baldwin Printing Controls Limited Rouleau thermique utilisant un tube de chauffe

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2043995A (en) * 1932-09-12 1936-06-16 John G Goedike Method of and means for dampening printing surfaces of planographic and analogous presses
EP0557245A1 (fr) 1992-02-20 1993-08-25 Grapha-Holding Ag Cylindre pour machines de traitement de matériau en bande
EP0574103A1 (fr) * 1992-06-04 1993-12-15 Komori Corporation Presse à imprimer
EP1218187B1 (fr) 1999-10-08 2003-11-19 Koenig & Bauer Aktiengesellschaft Cylindre de presse rotative
DE202004008903U1 (de) * 2004-06-04 2004-08-12 Heidelberger Druckmaschinen Ag Druckmaschine

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101428494B (zh) * 2007-11-09 2011-06-08 吴小华 全息模压版辊
CN102653167A (zh) * 2011-03-03 2012-09-05 海德堡印刷机械股份公司 用于印刷机的墨斗
CN102653167B (zh) * 2011-03-03 2015-03-18 海德堡印刷机械股份公司 用于印刷机的墨斗
EP3480013A1 (fr) * 2017-11-03 2019-05-08 Rotatek Printing Machinery, S.L.U. Machine d'impression offset et procédé d'impression correspondant
CN114466747A (zh) * 2019-07-26 2022-05-10 西康制造有限公司 具有均匀冷却辊的印刷设备

Also Published As

Publication number Publication date
EP1655134B1 (fr) 2008-03-26
DE502005003438D1 (de) 2008-05-08
ATE390282T1 (de) 2008-04-15
DE102004054031A1 (de) 2006-05-11

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