EP0693372B1 - Dispositif de contrÔle de la température pour machines d'impression - Google Patents

Dispositif de contrÔle de la température pour machines d'impression Download PDF

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Publication number
EP0693372B1
EP0693372B1 EP95108556A EP95108556A EP0693372B1 EP 0693372 B1 EP0693372 B1 EP 0693372B1 EP 95108556 A EP95108556 A EP 95108556A EP 95108556 A EP95108556 A EP 95108556A EP 0693372 B1 EP0693372 B1 EP 0693372B1
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
liquid
temperature control
printing press
circuit
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.)
Expired - Lifetime
Application number
EP95108556A
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German (de)
English (en)
Other versions
EP0693372A1 (fr
Inventor
Hans-Joachim Kurz
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
Application filed by Baldwin Gegenheimer GmbH filed Critical Baldwin Gegenheimer GmbH
Publication of EP0693372A1 publication Critical patent/EP0693372A1/fr
Application granted granted Critical
Publication of EP0693372B1 publication Critical patent/EP0693372B1/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
    • B41F31/00—Inking arrangements or devices
    • B41F31/002—Heating or cooling of ink or 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
    • B41F13/08—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
    • B41F7/00—Rotary lithographic machines
    • B41F7/20—Details
    • B41F7/24—Damping devices

Definitions

  • the invention relates to a printing press temperature control device for at least two separate liquids in a printing press, in particular fountain solution for wet offset printing and cooling water of an offset printing press according to the preamble of claim 1.
  • a printing machine temperature control device of this type is known from EP-A-0 553 447.
  • a refrigeration device with a refrigerant circuit is provided which is in two to each other parallel circuit branches is divided.
  • One circuit branch extends through a first heat exchanger and the other circuit branch extends through a second heat exchanger.
  • a fountain solution circuit also extends through the first heat exchanger for the purpose of heat energy exchange with the one circuit branch of the refrigerant circuit.
  • a cold water circuit extends through the second heat exchanger for the purpose of exchanging thermal energy with the other circuit branch of the refrigerant circuit.
  • the cold water circuit is used to cool cylinders of the printing press either by flowing through the relevant cylinder or by exchanging heat energy in a cold water-air heat exchanger and blowing the air cooled by the cold water onto the relevant cylinder.
  • Such printing press cylinders can be printing plate cylinders, blanket cylinders, impression cylinders, rollers and rollers of dampening units and of inking units or other cylinders or rollers of the printing press.
  • the fountain solution serves to moisten the non-printing areas of the printing plate of the printing plate cylinder so that they do not accept any printing ink.
  • a printing press When it starts, a printing press often has a temperature that is below its optimal operating temperature. In this case, the printing press need not be cooled at the beginning of its operating time. However, it is desirable that the printing press, especially its cylinders, rollers and rollers, reach the optimal operating temperature as quickly as possible.
  • cylinders mean any type of cylinder, roller or roller of a printing press, in particular an offset printing press.
  • the object of the invention is to achieve a temperature control device for an offset printing machine in a simple and inexpensive manner such that it can be used either for wet offset and dry offset and the heat output or cooling output is also available for dry offset, which is required for the fountain solution in the wet offset.
  • the invention has the advantage that the part of the temperature control device required for the temperature control of the cold water or cooling water need not be designed for the generation of the full heat output or cooling output of the cooling water, which is the case with dry offset printing is needed, but only for the generation of approximately half the heat or cooling capacity that is required in wet offset printing. With wet offset printing, the other half of the heat output or the cooling output is generated for the temperature control of the fountain solution.
  • the fountain solution is not required for dry offset printing, and the invention makes it possible in a simple manner to use the heat output or cooling capacity thus not required for the fountain solution for dry offset printing.
  • the printing press temperature control device is used for tempering, in particular for cooling two separate liquids of an offset printing press, which can optionally print wet offset and dry offset.
  • the first liquid is fountain solution.
  • the second liquid is cold water or cooling water, which is normally used to cool press parts, but can also be used to heat the press when a press is started, if it is not yet at the optimal operating temperature.
  • a first liquid circuit 2 for the fountain solution contains one after the other in the flow direction Dampening water tank 4, in which dampening water 6 is prepared, a pump 8, a first heat exchanger section 10 in a first heat exchanger 12, a second heat exchanger section 14 in a second heat exchanger 16, a dampening water tank 18, a return line 20 and a bypassing the dampening water tank 18 its bypass 22 connected in parallel with a changeover valve 24 at the upstream start of the bypass 22.
  • the dampening water can either be passed through the dampening water trough 18 or past it through the bypass 22 via the return line 20 into the dampening water tank 4.
  • a distributor device can also be used instead of a changeover valve 24, with which the dampening water can be passed partly through the dampening water trough 18 and partly through the bypass 22.
  • a refrigeration generator 26 contains a refrigerant circuit 28 which is passed through the first heat exchanger 12 and is in thermal energy exchange with the heat exchanger section 10 of the first liquid circuit 2.
  • the refrigeration generator 26 can compress and relax a refrigerant in a known manner according to the compressor-evaporator principle and thereby generate cold.
  • An example of such a refrigeration device is described in EP-A-0 553 447.
  • the fountain solution tank 4, the pump 8, the refrigeration generator 26 and the first heat exchanger 12 are preferably designed as a fountain solution cooling unit, which can be traded, used and exchanged separately from the other device parts.
  • a portion of the dampening water is removed from the dampening water trough 18 by rollers 30 and transferred to the pressure plate 32 of a pressure plate cylinder 34 and serves there to form ink-repellent areas.
  • a second liquid circuit 42 contains tempering liquid, hereinafter referred to as cooling water, for tempering an ink distributor roller 44 or another roller of an inking unit for applying printing ink to the printing plate cylinder 34, or for cooling the printing plate cylinder 34, a dampening unit roller 30, a blanket cylinder, an impression cylinder or one other cylinder, roller or roller of the printing press.
  • the cooling water can be passed through the relevant cylinder, roller or roller or can be used to cool air which is blown onto the relevant cylinder, roller or roller. Examples of such use of cooling water are described in EP-A-0 553 447.
  • the second liquid circuit 42 contains, in the direction of flow, a cooling water tank 46 with cooling water 48, a pump 50, a heat exchanger section 52 which is passed through the second heat exchanger 16 and which is in heat energy exchange with the heat exchanger section 14 of the first liquid circuit 2 within the second heat exchanger 16, one to be tempered Printing machine part, for example a cooling water-air heat exchanger 43 for blowing cooled air 45 onto the ink distributor roller 44, and a return line 54 leading back to the cooling water tank 46.
  • the cooling water 48 can be supplied through the ink distributor roller 44 or another roller or roller or cylinder which must be tempered instead of or in addition to the cooling water-air heat exchanger 43.
  • a controllable bypass 56 which bypasses the second heat exchanger 16 and in which there is a flow setting element in the form of a flow control valve 58 for setting a part of the second liquid 48 which passes through the bypass 56 and is automatically controlled or regulated as a function of temperature .
  • the flow control valve 58 allows between 0% and 100% of the cooling water 48 through the bypass 56, with 100% to 0% of the cooling water then flowing through the second heat exchanger 16 in a corresponding manner.
  • the flow control valve 58 is controlled as a function of the temperature, which is measured by a temperature sensor 59 immediately downstream of the point 60 where the downstream sides of the bypass 56 and the heat exchanger section 52 passing through the second heat exchanger 16 are connected to one another.
  • the temperature sensor 59 sends a corresponding actual temperature value signal to the flow control valve 58 which, depending on this actual value and a predetermined desired temperature value, the flow through the bypass 56 regulates.
  • the cooling water tank 46, the second heat exchanger 16, the bypass 56 and the temperature sensor 59 are preferably combined to form a separate structural unit which is connected in a flow-releasable manner to connecting lines 66 and 68 of the first heat exchanger 12 for the first liquid circuit 2.
  • a second refrigeration generator 70 can be provided with a refrigerant circuit 72, which has a heat exchanger section 74 in a third Has heat exchanger 76 and therein is in heat energy exchange with a heat exchanger section 78 of the second liquid circuit 42.
  • the third heat exchanger 76 is preferably located in the section of the second liquid circuit 42 which connects the downstream side of the second liquid circuit 42 on the second heat exchanger 16 in terms of flow to the printing machine element 44 to be cooled.
  • the bypass 56 in the second liquid circuit 42 allows the temperature of the cooling liquid 48 flowing through it to be set or regulated. The more cooling water flows through the bypass 56 instead of through the second heat exchanger 16, the less it is cooled by the first liquid circuit 2.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Rotary Presses (AREA)

Claims (8)

  1. Dispositif de mise à température de machines d'impression pour la mise à température d'au moins deux liquides séparés l'un de l'autre d'une machine d'impression, et en particulier d'une solution de mouillage (6) pour l'impression offset à l'humide et de l'eau de refroidissement (48) d'une machine d'impression offset, comprenant un premier circuit de liquide (2) destiné au premier liquide (6), comprenant un deuxième circuit de liquide (42) destiné au deuxième liquide (48), comprenant une première pompe (8) et un premier échangeur de chaleur (12) dans le premier circuit de liquide (2), comprenant une deuxième pompe (50) et un deuxième échangeur de chaleur (16) dans le deuxième circuit de liquide (42), et comprenant un générateur de froid (26) qui comporte au moins un circuit d'agent de refroidissement (28) pour refroidir les deux liquides (6, 48) au moyen des deux échangeurs de chaleur (12, 16), cependant que le circuit d'agent de refroidissement (28) passe à travers le premier échangeur de chaleur (12) en vue d'un échange d'énergie thermique avec le premier circuit de liquide (2), caractérisé par le fait que le premier circuit de liquide (2) passe à travers le premier échangeur de chaleur (12) et à travers le deuxième échangeur de chaleur (16), et par le fait que le deuxième circuit de liquide (42) passe à travers le deuxième échangeur de chaleur (16) en vue d'un échange d'énergie thermique avec le premier circuit de liquide (2).
  2. Dispositif de mise à température de machines d'impression selon la revendication 1, caractérisé par le fait que, dans la direction de l'écoulement du premier circuit de liquide (2), c'est tout d'abord le premier échangeur de chaleur (12), puis le deuxième échangeur de chaleur (16), qui sont disposés dans le premier circuit de liquide (2).
  3. Dispositif de mise à température de machines d'impression selon l'une des revendications précédentes, caractérisé par le fait qu'en aval des deux échangeurs de chaleur (12, 16) dans le premier circuit de liquide (2) sont disposés des moyens à soupape (24) au moyen desquels le premier liquide (6) du premier circuit de liquide (2) peut au choix passer par le dispositif d'utilisation (18, 30, 32, 34) ou contourner le dispositif d'utilisation par une déviation (22), le dispositif d'utilisation (18, 30, 32, 34) étant conformé de manière à produire une mise à température et/ou un mouillage d'un élément (32, 34) d'une machine d'impression.
  4. Dispositif de mise à température de machines d'impression selon l'une des revendications précédentes, caractérisé par le fait que le deuxième circuit de liquide (42) est pourvu d'une déviation (56) qui peut être commandée, qui contourne sa partie d'échangeur de chaleur (52) à l'extérieur du deuxième échangeur de chaleur (16) et dans laquelle se trouve un élément de réglage du débit qui est commandé à la main ou régulé automatiquement en fonction de la température en vue du réglage d'une partie du deuxième liquide (48) qui passe par la déviation (56).
  5. Dispositif de mise à température de machines d'impression selon la revendication 4, caractérisé par le fait que l'élément de réglage du débit (58) est commandé ou régulé en fonction d'une température dans le deuxième circuit de liquide (42).
  6. Dispositif de mise à température de machines d'impression selon l'une des revendications précédentes, caractérisé par le fait que le premier liquide (6) est une solution de mouillage destinée à des plaques d'impression (32) d'un cylindre porte-plaques (34) en impression offset à l'humide, et par le fait que le deuxième liquide (48) est de l'eau de refroidissement destinée à amener à température des éléments (30, 32, 34) d'une machine d'impression, en particulier en vue de la mise à température de rouleaux d'encrage (44), de rouleaux de mouillage, de cylindres porte-plaque, de cylindres porte-blanchet ou de cylindres de contre-pression.
  7. Dispositif de mise à température de machines d'impression selon l'une des revendications précédentes, caractérisé par le fait que le deuxième échangeur de chaleur (16) et une partie (46, 56, 58, 59) du deuxième circuit de liquide (42) sont assemblés pour former par construction une unité séparée qui est raccordée au premier circuit de liquide (2) d'une manière amovible et interchangeable en ce qui concerne l'écoulement.
  8. Dispositif de mise à température de machines d'impression selon l'une des revendications précédentes, caractérisé par le fait qu'il est prévu un deuxième générateur de froid (70) pourvu d'un circuit d'agent de refroidissement (72) qui échange de l'énergie thermique avec le deuxième circuit de liquide (42).
EP95108556A 1994-07-22 1995-06-03 Dispositif de contrÔle de la température pour machines d'impression Expired - Lifetime EP0693372B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4426077 1994-07-22
DE4426077A DE4426077A1 (de) 1994-07-22 1994-07-22 Druckmaschinen-Temperierungsvorrichtung

Publications (2)

Publication Number Publication Date
EP0693372A1 EP0693372A1 (fr) 1996-01-24
EP0693372B1 true EP0693372B1 (fr) 1997-07-23

Family

ID=6523936

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95108556A Expired - Lifetime EP0693372B1 (fr) 1994-07-22 1995-06-03 Dispositif de contrÔle de la température pour machines d'impression

Country Status (4)

Country Link
US (1) US5749295A (fr)
EP (1) EP0693372B1 (fr)
JP (1) JP2752051B2 (fr)
DE (2) DE4426077A1 (fr)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4426083A1 (de) * 1994-07-22 1996-01-25 Baldwin Gegenheimer Gmbh Druckmaschinen-Temperierungsvorrichtung
DE19607681B4 (de) 1996-02-29 2009-07-09 Fogra Forschungsgesellschaft Druck E.V. Verfahren und Vorrichtung zur kontinuierlichen Messung und Regelung der Zusammensetzung einer Feuchtmittellösung für den Offsetdruck
DE29716582U1 (de) * 1997-09-15 1997-11-06 Technotrans GmbH, 48336 Sassenberg Temperierungsanordnung bei Druckmaschinen
DE19837174A1 (de) * 1997-10-09 1999-04-15 Heidelberger Druckmasch Ag Verfahren und Einrichtung zum Temperieren einer Farbkastenwalze im Farbwerk von Rotationsdruckmaschinen
DE19857108A1 (de) * 1998-12-10 2000-06-15 Baldwin Grafotec Gmbh Temperiervorrichtung einer Druckmaschine
US6508069B2 (en) 2000-02-29 2003-01-21 Peter M. Sibilia Temperature controlled gravity feed fountain solution supply apparatus
WO2001068223A1 (fr) * 2000-03-16 2001-09-20 Gebr. Becker Gmbh & Co. Procede et dispositif permettant d'utiliser la chaleur perdue resultant de l'alimentation en air en depression/air comprime d'une presse a imprimer
US6293199B1 (en) * 2000-07-07 2001-09-25 Baldwin Graphicssystems, Inc. Printing press circulation system
DE10101134B4 (de) * 2001-01-12 2008-11-06 Hell Gravure Systems Gmbh & Co. Kg Graviersystem mit einer Kühlungseinrichtung zur Kühlung des Graviersystems
DE10111614B4 (de) * 2001-03-10 2004-02-12 Technotrans Ag Feuchtmittel-Zufuhrsystem
US6851359B2 (en) * 2001-06-22 2005-02-08 Sparflex Offset printing method and device
US6765941B2 (en) * 2001-12-03 2004-07-20 Agfa Corporation Method and apparatus for cooling a self-contained laser head
DE10308408A1 (de) * 2002-03-20 2003-10-02 Heidelberger Druckmasch Ag Verfahren zur Temperierung einer Druckmaschine
JP4995442B2 (ja) * 2004-07-16 2012-08-08 ハイデルベルガー ドルツクマシーネン アクチエンゲゼルシヤフト 温度調節をする方法
US7422840B2 (en) * 2004-11-12 2008-09-09 E.I. Du Pont De Nemours And Company Apparatus and process for forming a printing form having a cylindrical support
DE102004063790A1 (de) * 2004-12-30 2006-07-13 Baldwin Germany Gmbh Flüssigkeitsversorgungsschrank für Offset-Druckmaschinen
DE102005005303A1 (de) * 2005-01-05 2006-07-13 Koenig & Bauer Ag Systeme zur Temperierung von Bauteilen einer Druckmaschine
DE102006028292A1 (de) * 2006-03-24 2007-09-27 Kohnert, Bärbel Verfahren und Vorrichtung zur Temperierung von Farbwerken und von Feuchtmittel einer Offsetdruckmaschine
DE102007043644A1 (de) * 2007-09-13 2009-03-19 Technotrans Ag Temperiergerät für Druckmaschinen
DE102007053080A1 (de) 2007-11-07 2009-05-20 Technotrans Ag Temperiersystem für Druckmaschinen mit mehreren Temperaturniveaus
JP5286508B2 (ja) 2008-12-26 2013-09-11 アイマー・プランニング株式会社 印刷機
DE102018113959A1 (de) * 2018-06-12 2019-12-12 Baldwin Technology Gmbh Druckmaschinen-temperierungsvorrichtung und verfahren zum temperieren von farbwerken und von feuchtmittel einer offset-druckmaschine

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DE1191833B (de) * 1959-11-04 1965-04-29 Leo Keller Verfahren zur Feuchtung einer Druckplatte und Einrichtung zur Durchfuehrung des Verfahrens
US3352317A (en) * 1964-12-09 1967-11-14 Dahlgren Mfg Company Inc Dampening fluid cooling and circulating apparatus for lithographic offset press dampening device
GB1361096A (en) * 1972-01-05 1974-07-24 Tools Ltd Nv Printing press rollers
DE2360611A1 (de) * 1973-12-05 1975-06-19 Grapho Metronic Gmbh & Co Farbwerk fuer druckmaschinen
CH655690B (fr) * 1982-05-19 1986-05-15
GB2207636B (en) * 1987-08-04 1991-08-14 Seiichi Kurosawa Thermoregulator
DE4000912C1 (fr) * 1990-01-15 1991-05-29 Jagusch & Co, 8649 Wallenfels, De
US5189960A (en) * 1991-11-18 1993-03-02 Fredric Valentini Apparatus and method for controlling temperature of printing plate on cylinder in rotary press
DE4202544A1 (de) * 1992-01-30 1993-08-05 Baldwin Gegenheimer Gmbh Druckplatten-temperierungssystem fuer eine druckmaschine
US5272971A (en) * 1992-08-14 1993-12-28 Electro Sprayer Systems, Inc. Ink temperature control system for waterless lithographic printing
DE9314967U1 (de) * 1993-03-11 1993-12-09 Baldwin-Gegenheimer Gmbh, 86165 Augsburg Temperierungsvorrichtung für Rotationskörper in Druckwerken

Also Published As

Publication number Publication date
EP0693372A1 (fr) 1996-01-24
JPH0852852A (ja) 1996-02-27
DE4426077A1 (de) 1996-01-25
JP2752051B2 (ja) 1998-05-18
US5749295A (en) 1998-05-12
DE59500412D1 (de) 1997-08-28

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