EP1264692A1 - Dispositif de nettoyage d'un cylindre d'une machine d'impression - Google Patents

Dispositif de nettoyage d'un cylindre d'une machine d'impression Download PDF

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Publication number
EP1264692A1
EP1264692A1 EP02009631A EP02009631A EP1264692A1 EP 1264692 A1 EP1264692 A1 EP 1264692A1 EP 02009631 A EP02009631 A EP 02009631A EP 02009631 A EP02009631 A EP 02009631A EP 1264692 A1 EP1264692 A1 EP 1264692A1
Authority
EP
European Patent Office
Prior art keywords
cylinder
cleaning unit
pressure chamber
printing press
printing machine
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
EP02009631A
Other languages
German (de)
English (en)
Other versions
EP1264692B1 (fr
Inventor
Herbert Stanka
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.)
Baldwin Germany GmbH
Original Assignee
Baldwin Germany 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 Baldwin Germany GmbH filed Critical Baldwin Germany GmbH
Publication of EP1264692A1 publication Critical patent/EP1264692A1/fr
Application granted granted Critical
Publication of EP1264692B1 publication Critical patent/EP1264692B1/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
    • B41F35/00—Cleaning arrangements or devices
    • B41F35/006—Cleaning arrangements or devices for impression cylinders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2235/00—Cleaning
    • B41P2235/10—Cleaning characterised by the methods or devices
    • B41P2235/20—Wiping devices
    • B41P2235/24—Wiping devices using rolls of cleaning cloth

Definitions

  • the invention relates to a printing press cylinder cleaning device Sheet printing machine according to the preamble of claim 1.
  • the object of the invention is to achieve the noises and the Reduce material wear of the control cam cam follower arrangement, even if the printing press cylinder has higher speeds than today usual speeds of about 1200 rev / h rotates.
  • Printing machine cylinders to be cleaned in sheet printing machines are especially the impression cylinder, often only as an impression cylinder designated. However, others can also be cleaned Printing press cylinders of sheet-fed printing presses, which one Have gripper device for printed sheets.
  • a cleaning unit With a cleaning unit, the outer surface of a Printing machine cylinders can be cleaned dry or preferably wet.
  • a cleaning unit with a moistenable washcloth is for example known from DE 30 05 469 C2.
  • Fig. 1 shows the drawing schematically shows a side view of a Printing press cylinder cleaning device according to the invention for a Sheetfed press.
  • the sheetfed press has partially broken off shown and contains z.
  • B. a plate cylinder 2, of which a print image is transferred to a blanket cylinder 4, which the print image on a Printed sheets (not shown) made of paper or other material transmits which is on the outer surface 8 of a counter-pressure cylinder 6 is located and at its front end in the direction of rotation 11 of one Gripping device 10 is held.
  • the impression cylinder 6, in the following as commonly called only pressure cylinder 6, has at least one Gripping device 10 and can be one of the number of gripping devices corresponding number of printed sheets on its outer surface 8 hold one after the other.
  • the pressure cylinder 6 of FIG. 1 has two as an example diametrically opposed gripping devices 10.
  • Each gripping device 10 contains a surface 8, channel 12 (or pit) extending over the entire cylinder length, in which a gripper bar 14 (or a plurality of grippers) around one
  • the axis of rotation 16 can be pivoted around the front edge with a gripper nose 18 a printed sheet (not shown) next to the channel 12 on the outer surface 8 to clamp and then release again to pass on the printed sheet to another processing station.
  • the gripper nose 18 protrudes from the channel 12 out over the rear end 20 of the channel 12 with respect to the direction of rotation 11, which has a circumferentially opposite front end 22.
  • Fig. 1 does not show the printing operation described above, but the Cleaning company for cleaning the outer surface 8 of the printing cylinder 2, at which the cleaning unit 24 in a cleaning position the lateral surface 8 contacted.
  • the cleaning company is normally a washing company, because the The outer surface 6 of the impression cylinder 2 can be cleaned damp more quickly than dry.
  • the rotation of the impression cylinder 2 in the direction of rotation 11 engages Cleaning element 26, e.g. B. a washcloth, on the outer surface 8.
  • the as Cleaning element 26 serving wash cloth is then gradually transported further if it does not contact the outer surface 8.
  • the washing cloth 26 is preferably transported further by a Device which detects the movement of the cleaning unit 24 from that in FIG shown cleaning position in the parking position 24-1 (or at the reverse direction of movement) on the washcloth 26.
  • a Device which detects the movement of the cleaning unit 24 from that in FIG shown cleaning position in the parking position 24-1 (or at the reverse direction of movement) on the washcloth 26.
  • one damp cleaning cloth 26 can also use other cleaning elements
  • the cleaning element 26 is resiliently placed on the outer surface 8 (Pressed). Therefore, the part of the cleaning unit 24 which is the Cleaning element 26 carries, brought closer to the outer surface 8 be than this for a weak contacting of the lateral surface 8 by the Cleaning element 26 is required. In the following, however, Simplify the description as if the cleaning unit 24 together with the cleaning element 26 only exactly up to the lateral surface 8 is moved.
  • the adjustment of the cleaning unit 24 between the cleaning position and Parking position 24-1 is achieved by at least one double-acting one pneumatic actuator 28, the pressure piston 30 with the cleaning unit 24 is mechanically connected.
  • the actuator 28 has on one side of the Pressure piston 30 a setting pressure chamber 32 and on the other side Parking pressure chamber 34. They can alternately be pressurized with compressed air and ventable through a valve assembly 36.
  • the cleaning unit 24 is guided in a holder 38, which in a Printing machine frame (not shown) is used, in which the cylinder 2, 4 and 6 are rotatably mounted.
  • the control curve 42 has seen against the cylinder rotation direction 11, one from the beginning of the curve 44 up to a mountaintop 48 on a curve mountain 50 only with a small steepness ascending curve climb 52, and one from mountain peak 48 to End of curve 46, preferably steep, descending curve descent 54. Am Beginning of curve 44 or shortly thereafter, the gentle rise of the Ascent 52. The cleaning element 26 is on the mountain top 48 the gripper nose 18, and after the rear channel end 20 that is Cleaning element 26 again on the subsequent surface 8 of the Printing cylinder 6 placed.
  • Fig. 1 shows the situation in which the Curve follower 56 has run off the control curve so far that the Washing element 26 is again placed on the outer surface 8. The descent 54 can drop steeply towards the end of the curve 46.
  • the valve arrangement 36 is part of a control device 60, which also has a contains electronic control part 62 and an angle encoder 64.
  • the Angle of rotation encoder 64 shows the electronic control part 62 Angular positions of the pressure cylinder 6 when the actuator 28 with pneumatic pressure is applied or vented.
  • angle encoder 64 can be operated by the pressure cylinder 6 switches, for example Proximity switches can be used. However, a is preferred Incremental encoder.
  • the control device 60 is designed in such a way that the setting pressure chamber 32 of the cleaning unit 24 for the curve rise 52 is automatically vented, the start of the venting being dependent on the angular position of the pressure cylinder 6 relative to the cleaning unit 24. Furthermore, the control device 60 is designed such that the pneumatic contact pressure of the Cleaning unit 24 is automatically rebuilt after the above-mentioned venting for the section of the lateral surface 8 of the rotating pressure cylinder 6 that follows the gripping device 10. The beginning of the venting and / or the beginning of the rebuilding of the pneumatic contact pressure of the actuator 28 on the cleaning unit 24 is preferably variable adjustable.
  • the beginning of the Reconstruction of the pneumatic contact pressure from the angle of rotation position of the pressure cylinder 6 is dependent on the cleaning unit 24.
  • the valve assembly 36 includes a positioning valve 66 and downstream thereof a pressure control valve 68, by which in those shown in Fig. 1 Valve positions the pneumatic pressure of a compressed air source 70 via a Pressure regulator 72 acts in the starting pressure chamber 32 and thereby Cleaning unit 24 from parking position 24-1 to cleaning position 24 moves and there presses the cleaning element 26 against the outer surface 8 to clean them with the printing cylinder 6 rotating.
  • the two valves 66 and 68 are preferably 5/2-way valves.
  • the pressure control valve 68 is located in the compressed air path 74 from the positioning valve 66 to the starting pressure chamber 32 and divides it into the two Paths 74-1 and 74-2. Furthermore, a compressed air path 76 from Positioning valve 66 to the storage chamber 34 of the actuator 28 is formed, which passes the pressure control valve 68.
  • an adjustable flow restrictor 78 or 80 which in each case opens in the pressure direction of the compressed air source 70
  • Check valve 79 or 81 is connected in parallel. This can reduce the pressure the compressed air source 70 in each case unthrottled in the chambers 32 and 34 can be built up, and the ventilation of these chambers 32 and 34 can by the throttles 78 and 80 can be set variably.
  • This reduction in pressure can be accelerated by additional Switching the positioning valve 66 to that not shown in FIG. 1 Valve position in which compressed air from the compressed air source 70 via the Position valve and the compressed air path 76 in the storage chamber 34 can, so that the relief of the cleaning unit 24 from the control curve 42 is accelerated.
  • the start of the vent chamber 32 vent described above and the back pressure in the storage pressure chamber 34 can be accurate at the front channel end 22 or preferably shortly before, or after, however in front of the gripper nose 18. The further this takes place in front of the gripper nose 18, the flatter (small slope angle) the curve climb 52 can be.
  • the starting pressure chamber 32 is preferably the beginning and / or the beginning the pressurization of the parking pressure chamber 34 for the curve rise 52 variably adjustable.
  • the cleaning unit 24 with its Cleaning element 26 again on the then following section of Lateral surface 8 are placed, preferably with the contact pressure, which is required for cleaning the outer surface 8. Therefore the Parking pressure chamber 34 vented again by that shown in Fig. 1 Valve position of the positioning valve 66 and the starting pressure chamber 32 Compressed air from the compressed air source 70 is again acted upon by the air in FIG. 1 shown position of the positioning valve 66 and the pressure control valve 68 still before the curve follower 56 from the control curve 42 to the lateral surface 8 passes over, d. H. preferably before the end of the curve 46, e.g. B. still on the curve descent 54 or already near the curve tip 48, shortly before this (on this or after this). The exact time and the exact Angular position of the impression cylinder 6 for this process is preferred variably adjustable.
  • the curve follower 56 can be rigidly formed on the washing device 24 or be attached, for example near the cleaning element or over a support arm. However, the curve follower and such a support arm increase the weight of the cleaning unit 24 and hinder its removal and their insertion from or into the holder 38 in the machine frame.
  • lever assembly 86 is one Toggle assembly, which two on the bracket 38 each by storage 87 and 88 mounted rocker arms 90 and 92 and an intermediate lever 94 has, the ends and each at one end of the two rocker arms 90 and 92 are rotatably supported by bearings 95 and 96, with all bearing axes are arranged parallel to the axis of rotation of the printing cylinder 6.
  • the curve follower 56 is located at the first end 98 of the lever arrangement 86 arranged and at the second end 100 of the lever arrangement is a stop 102 formed in the direction away from the pressure cylinder 6 on the support surface 104 of the cleaning unit 24, which points in the direction of the printing cylinder 6.
  • the cam follower 56 and / or the stop 102 of the lever arrangement 86 can be immovable elements relative to the levers, but are for Avoiding material wear and avoiding Frictional resistances are preferably formed by a roller, depending on the relevant rocker arm 90 or 92 is rotatably supported about an axis of rotation, which is parallel to the axis of rotation of the impression cylinder 6.
  • a tension spring 106 is preloaded on the one hand on the holder 38 and on the other hand on one of the two protruding arms of the Rocker lever 90, 92 attached, preferably on the cleaning unit 24 acting lever arm of the second rocker arm 92. This leaves the Tension spring 106 when removing and inserting the cleaning unit 24 from or into the holder 38 on this holder, together with the Toggle lever arrangement 86. This increases the weight of the cleaning unit 24 not increased by the tension spring 106 and it does not interfere with their handling when Remove and insert the cleaning unit 24 from or into the Bracket 38.
  • the tension spring 106 pulls the cleaning unit over the toggle lever arrangement 86 24 away from the pressure cylinder 6 when the pneumatic pressure in the actuator 28 fails. It therefore has a safety function, through which damage the washing device 24 and / or the gripping device 10 by mutual contact in the event of failure of the pneumatics.
  • the of the Tension spring 106 on the cleaning unit 24 force is less than that by the pneumatic pressure on the cleaning unit 24 in the normal case generated force.
  • the tension spring 106 has the same as the loading Parking pressure chamber 34 of the actuator 28 with compressed air during the Vent the pressure chamber 32 before and / or during emergence of the curve follower 56 on the curve rise 52 the advantage that the the pressure on the control curve 42 of the cleaning unit 24 faster can be reduced.
  • a tension spring 106 instead of a tension spring 106, a compression spring between the Lever assembly and the bracket 38 are used, the force in acts in the same direction on the cleaning unit 24.
  • the one or more Control curve 42, a curve follower 56, a toggle lever arrangement 86 and a spring 106 (tension or compression spring) existing arrangement can on a Be provided on the end face or on both end faces of the printing cylinder 6.

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)
EP02009631A 2001-06-07 2002-04-27 Dispositif de nettoyage d'un cylindre d'une machine d'impression Expired - Lifetime EP1264692B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10127442 2001-06-07
DE10127442A DE10127442A1 (de) 2001-06-07 2001-06-07 Druckmaschinenzylinder-Reinigungsvorrichtung

Publications (2)

Publication Number Publication Date
EP1264692A1 true EP1264692A1 (fr) 2002-12-11
EP1264692B1 EP1264692B1 (fr) 2007-06-13

Family

ID=7687367

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02009631A Expired - Lifetime EP1264692B1 (fr) 2001-06-07 2002-04-27 Dispositif de nettoyage d'un cylindre d'une machine d'impression

Country Status (5)

Country Link
US (1) US20020185028A1 (fr)
EP (1) EP1264692B1 (fr)
JP (1) JP2003025552A (fr)
CN (1) CN1390702A (fr)
DE (2) DE10127442A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10327888A1 (de) * 2003-06-20 2005-01-05 Baldwin Germany Gmbh Bogendruckmaschinen-Wascheinrichtung und Steuereinrichtung dafür
DE502005007747D1 (de) * 2005-05-02 2009-09-03 Baldwin Oxy Dry Gmbh Reinigungssystem für Zylinderoberflächen einer Druckmaschine
DE102008020393A1 (de) 2008-04-23 2009-10-29 Baldwin Germany Gmbh Druckmaschinenzylinder-Reinigungsvorrichtung und Druckmaschine
DE102009002012B4 (de) 2009-03-31 2018-10-31 Koenig & Bauer Ag Vorrichtung zum Reinigen eines Zylinders in einer Druckmaschine

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3005469A1 (de) 1979-04-19 1980-10-30 Baldwin Gegenheimer Corp Waschvorrichtung eines drucktuchzylinders einer druckmaschine mit einem reinigungstuch
EP0315154A2 (fr) * 1987-11-06 1989-05-10 B-J Trading Limited Dispositif de nettoyage pour un cylindre
JPH02164540A (ja) * 1988-12-19 1990-06-25 Nippon Baldwin Kk オフセット印刷機圧胴洗浄装置
US5921182A (en) * 1996-03-21 1999-07-13 Heidelberger Druckmaschinen Aktiengesellschaft Cleaning device provided on a rotary printing machine

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4757763A (en) * 1979-04-19 1988-07-19 Baldwin Technology Corporation Automatic blanket cylinder cleaner
DE3614496A1 (de) * 1986-04-29 1987-11-05 Heidelberger Druckmasch Ag Waschvorrichtung fuer druckzylinder von druckmaschinen
US5271326A (en) * 1990-03-05 1993-12-21 Komori Corporation Cylinder cleaning mechanism for a printing press
JPH0750203Y2 (ja) * 1991-12-18 1995-11-15 ニッカ株式会社 印刷シリンダ洗浄ユニットのエンゲージング装置
DE19611125C2 (de) * 1996-03-21 1999-09-02 Heidelberger Druckmasch Ag Reinigungseinrichtung an Rotationsdruckmaschinen
DE19920230A1 (de) * 1999-05-03 2000-11-09 Baldwin Grafotec Gmbh Reinigungsvorrichtung für die graphische Industrie
DE19920228A1 (de) * 1999-05-03 2000-11-09 Baldwin Grafotec Gmbh Druckmaschinen-Reinigungsvorrichtung

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3005469A1 (de) 1979-04-19 1980-10-30 Baldwin Gegenheimer Corp Waschvorrichtung eines drucktuchzylinders einer druckmaschine mit einem reinigungstuch
EP0315154A2 (fr) * 1987-11-06 1989-05-10 B-J Trading Limited Dispositif de nettoyage pour un cylindre
JPH02164540A (ja) * 1988-12-19 1990-06-25 Nippon Baldwin Kk オフセット印刷機圧胴洗浄装置
US5921182A (en) * 1996-03-21 1999-07-13 Heidelberger Druckmaschinen Aktiengesellschaft Cleaning device provided on a rotary printing machine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 014, no. 420 (M - 1023) 11 September 1990 (1990-09-11) *

Also Published As

Publication number Publication date
CN1390702A (zh) 2003-01-15
US20020185028A1 (en) 2002-12-12
DE50210300D1 (de) 2007-07-26
DE10127442A1 (de) 2002-12-12
JP2003025552A (ja) 2003-01-29
EP1264692B1 (fr) 2007-06-13

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