EP0697285A2 - Système de réglage de la température pour une machine à imprimer - Google Patents

Système de réglage de la température pour une machine à imprimer Download PDF

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Publication number
EP0697285A2
EP0697285A2 EP95112446A EP95112446A EP0697285A2 EP 0697285 A2 EP0697285 A2 EP 0697285A2 EP 95112446 A EP95112446 A EP 95112446A EP 95112446 A EP95112446 A EP 95112446A EP 0697285 A2 EP0697285 A2 EP 0697285A2
Authority
EP
European Patent Office
Prior art keywords
printing
press
temperature control
heat exchanger
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
EP95112446A
Other languages
German (de)
English (en)
Other versions
EP0697285A3 (fr
EP0697285B2 (fr
EP0697285B1 (fr
Inventor
Klaus Strobl
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 Grafotec GmbH
Original Assignee
Baldwin Gegenheimer 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
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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

Definitions

  • the invention relates to a printing press temperature control system according to the preamble of claim 1.
  • Such a printing press temperature control system is known from EP 0 602 312 A1. It is used in particular for fountain solution offset printing and dry offset printing. This can be sheet printing (printing on individual sheets of paper) or roll printing (printing on paper webs).
  • the sheet-fed offset printing machines are much smaller than the web-fed offset printing machines stand in a press room and generate heat, which they emit into the press room.
  • the chiller works on the principle of alternating compression and expansion of a refrigerant in a refrigerant circuit.
  • the refrigerant releases its cold to the cold water or another coolant.
  • the cold generator releases the heat extracted from the cold water into the surrounding area.
  • the chiller hereinafter referred to as the chiller, is housed in the press room where the press is located, but at a distance from the press so that they do not heat each other due to the heat they emit.
  • the invention is intended to solve the problem of reducing undesired heating of the sheet-fed offset printing machine by the heat emitted by the refrigeration unit and undesired heating of the refrigeration unit by the heat radiated by the printing machine, and at the same time designing the temperature control system so that it Requires less space in the pressroom and is nevertheless quickly and easily accessible for maintenance work or for replacing a device unit or for Refill fountain solution or another liquid.
  • the invention has the following advantages in particular: the cooling generator requires less cooling capacity, space is freed up for other purposes in the pressroom, and the temperature control system is easily accessible.
  • the printing press temperature control system 2 shown schematically in FIG. 1 is used for temperature control of at least one printing press means of at least one printing unit 4 of a sheet-fed printing press 6, in particular a sheet-fed printing press working according to the offset printing process, for printing on paper sheets.
  • the printing press means can be air 8, which is driven by a blower 10 through a first heat exchanger 12 and blown onto the outer surface of a cylinder 13 of the printing press 6 to be cooled.
  • the cylinder 13 can for example be a forme cylinder or plate cylinder, a transfer cylinder such as a blanket cylinder, or an impression cylinder.
  • the temperature control system 2 and the printing press 6 are located in a printing room 14 which has walls 15 and 16.
  • a refrigeration device 18 is arranged outside the pressure room 14 and cools cooling liquid of a cooling liquid circuit 22 that passes through it.
  • the cooling liquid circuit 22 extends through the one wall 15 into the pressure room 14 and has a flow branch 24 led through the pressure room 14 and also through the pressure room 14 return branch 26 passed through.
  • the flow directions in the temperature control system 2 are indicated by arrows.
  • the first heat exchanger 12 is at one end to the flow branch 24 and at another end to the Return branch 26 connected in terms of flow and the coolant flows through it.
  • the first heat exchanger 12 and its associated blower 10 form a blown air cooling device which extends over the entire length of the cylinder 14 to be cooled, as is known, for example, from EP 0 602 312 A1.
  • the printing unit 4 contains, for example, a forme cylinder or plate cylinder 28, a blanket cylinder 29 and an impression cylinder 30.
  • a schematically illustrated dampening unit 32 transfers dampening water from a dampening water trough 34 to the locations on the circumference of the plate cylinder 28 which are not allowed to accept printing ink.
  • a schematically illustrated inking unit 36 transfers ink from an ink source, not shown, to the ink-accepting locations on the circumference of the plate cylinder 28.
  • the cylinder 14 cooled by the cold air blowing device 10, 12 can be one of the cylinders 28, 29 and 30 of the printing unit 4 and is shown separately in FIG. 1 only for the purpose of simplifying the illustration.
  • Figure 1 shows two device units 40 and 42, which can be placed directly next to or below or in the printing press 6 within the press room 14.
  • One or the first device unit 40 contains a second heat exchanger 44, a reservoir 46 for dampening water 47, a pump 48 and a valve 50.
  • the second heat exchanger 44 contains a first one Heat exchanger strand 52, which is interchangeably inserted via two pipe connections 54 and 55 of the one unit 40 into the flow branch 24 of the coolant circuit 22 such that the coolant of the coolant circuit 22 flows through it.
  • the second heat exchanger 44 also contains a second heat exchanger branch 58, which is in heat exchange within the second heat exchanger 44 with the first heat exchanger branch 52 and via a heat exchanger feed line 60, in which the first pump 48 is located, and via a heat exchanger return line 62 each with the reservoir 46 is connected in terms of flow and together with this forms a first temperature-controlled circuit 64.
  • a feed line 66 which contains the valve 50, branches off from the feed line 60 and is connected in terms of flow via a third pipe connection 67 of the one unit 40 to a line section 68 leading into the fountain water tank 34.
  • An outlet line 70 of an overflow of the dampening water trough 34 is connected in terms of flow via a fourth pipe connection 72 of the one unit 40 to a second return line 74 which opens into the reservoir 46.
  • the feed line 60 with the pump 48, the feed line 66 with the line section 68, the dampening water pan 34 with the drain line 70 and the second return line 74 together form a second circuit 76 for tempered dampening water 47.
  • the flow cross section of the valve 50 can be changed in order to to let more or less dampening water circulate in the second circuit 76.
  • the reservoir 46 is designed such that it without disassembling the first pump 48 and the first Heat exchanger 44 can be removed or used from a device unit 40.
  • the other or second interchangeable device unit 42 can be placed on, under or in the printing press 6, and is essentially of the same design as the one or first device unit 40 and is therefore provided with the same reference numbers.
  • the reservoir 46 of the second device unit 42 there is not dampening water 34, but rather cooling water 87, which is passed through an ink distributor roller 88 in order to cool it.
  • the first heat exchanger line 52 of the heat exchanger 44 in the second device unit 42 is arranged in the flow branch 24 of the coolant circuit 22 in series and downstream of the first heat exchanger line 52 of the heat exchanger 44 of the first device unit 40 in such a way that it is separated from the coolant after the heat exchanger 44 of the first device unit 40 of the coolant circuit 22 is flowed through.
  • the cooling liquid of the cooling liquid circuit 22 has already absorbed some heat from the dampening water 47 of the first device unit 40 before it cools the cooling water 87 of the second device unit 42. This takes into account that the ink distributor roller 88 must be warmer than the plate cylinder 28.
  • the storage containers 46 of the two device units 40 and 42 are each open at the top, so that atmospheric pressure prevails in them.
  • the storage container 46 of the second device unit 42 can be designed as a closed container in which is the pressure generated by the pump 48. In this case, no supply line 66 and no valve 50 are necessary, but the cooling water circuit is passed directly through the ink distributor roller 88, as shown in FIG.
  • the two device units 40 and 42 can either be placed under the stairs 92 on the operating side 91 of the printing press 6 or under the gallery 94 of the printing press 6 on the drive side 93 of the printing press, under which one or more drive motors 96 are also located to drive the plate cylinder 28, the blanket cylinder 29 and the impression cylinder 30.
  • the two device units 40 and 42 can also be combined to form a single overall unit 40/42. Instead of two device units 40 and 42, you then only have one device 40/42.
  • the rooms under the stairs 92 and / or the gallery 94 of the printing press 6 can be clad by walls and provided with a door 98 or 99 as access to the device units 40 and 42.
  • the device units 40 and 42 can also be arranged elsewhere in or directly next to the printing press 6. It is also possible to use one To arrange device unit 40 on one machine side 91 or 93 and the other device unit 42 on the other machine side 93 or 91. However, both device units 40 or 42 are preferably arranged on the same machine side.
  • FIG. 4 shows a printing press 6 with four printing units 4.
  • the two unit units 40 and 42 are located on each printing unit 4.
  • the unit units 40 and 42 of all printing units are connected in series or in parallel in terms of flow to the coolant circuit 22 of the refrigeration unit 20
  • a plurality of refrigeration units 20 can be provided in order to cool the two appliance units 40 and 42 or a plurality of such appliance units 40 and 42.
  • the device units 40 and 42 and the device unit 40/42 are each designed as add-on devices, which can optionally be added to a printing press.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Control Of Temperature (AREA)
EP95112446A 1994-08-19 1995-08-08 Système de réglage de la température pour une machine à imprimer Expired - Lifetime EP0697285B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9413439U DE9413439U1 (de) 1994-08-19 1994-08-19 Druckmaschinen-Temperierungssystem
DE9413439U 1994-08-19

Publications (4)

Publication Number Publication Date
EP0697285A2 true EP0697285A2 (fr) 1996-02-21
EP0697285A3 EP0697285A3 (fr) 1996-10-23
EP0697285B1 EP0697285B1 (fr) 1998-06-17
EP0697285B2 EP0697285B2 (fr) 2005-02-09

Family

ID=6912629

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95112446A Expired - Lifetime EP0697285B2 (fr) 1994-08-19 1995-08-08 Système de réglage de la température pour une machine à imprimer

Country Status (2)

Country Link
EP (1) EP0697285B2 (fr)
DE (2) DE9413439U1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0693375A3 (fr) * 1994-07-22 1997-11-19 Baldwin Grafotec GmbH Dispositif de régulation de la température pour une imprimante
US7318378B2 (en) 2004-07-16 2008-01-15 Heidelberger Druckmaschinen Ag Temperature control method and printing machine

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19516113A1 (de) * 1995-05-05 1996-11-07 Baldwin Gegenheimer Gmbh Druckmaschinen-Temperiervorrichtung
DE19710124B4 (de) * 1997-03-12 2006-03-16 Goss Contiweb B.V. Verfahren und Vorrichtung zur Temperierung von Kühlwalzen
DE29716582U1 (de) * 1997-09-15 1997-11-06 Technotrans GmbH, 48336 Sassenberg Temperierungsanordnung bei Druckmaschinen
DE19857108A1 (de) 1998-12-10 2000-06-15 Baldwin Grafotec Gmbh Temperiervorrichtung einer Druckmaschine
DE102008009996A1 (de) 2008-02-19 2009-08-20 Baldwin Germany Gmbh Druckmaschinentemperiersystem
DE202008018546U1 (de) 2008-02-19 2015-08-03 Baldwin Germany Gmbh Druckmaschinentemperiersystem

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0602312A1 (fr) 1992-01-30 1994-06-22 Baldwin-Gegenheimer GmbH Système de refroidissement pour machines d'impression

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1953590C3 (de) * 1969-10-24 1983-02-10 Leo P.H. Dipl.Rer.Pol. 7000 Stuttgart Keller Verfahren zur Beeinflussung des Flachdruckvorganges und Flachdruckmaschine hierfür
CH655690B (fr) * 1982-05-19 1986-05-15
GB2207636B (en) † 1987-08-04 1991-08-14 Seiichi Kurosawa Thermoregulator
DE9017795U1 (de) * 1990-10-08 1992-03-12 MAN Roland Druckmaschinen AG, 6050 Offenbach Thermoregler für eine um einen Druckformzylinder gelegte Druckform für wasserlosen Offset-Druck

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0602312A1 (fr) 1992-01-30 1994-06-22 Baldwin-Gegenheimer GmbH Système de refroidissement pour machines d'impression

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0693375A3 (fr) * 1994-07-22 1997-11-19 Baldwin Grafotec GmbH Dispositif de régulation de la température pour une imprimante
US7318378B2 (en) 2004-07-16 2008-01-15 Heidelberger Druckmaschinen Ag Temperature control method and printing machine

Also Published As

Publication number Publication date
DE59502566D1 (de) 1998-07-23
EP0697285A3 (fr) 1996-10-23
DE9413439U1 (de) 1994-11-17
EP0697285B2 (fr) 2005-02-09
EP0697285B1 (fr) 1998-06-17

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