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EP0650411B1 - Dispositif pour le sechage thermique de bandes, de feuilles, ou d'elements semblables - Google Patents

Dispositif pour le sechage thermique de bandes, de feuilles, ou d'elements semblables Download PDF

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Publication number
EP0650411B1
EP0650411B1 EP93922537A EP93922537A EP0650411B1 EP 0650411 B1 EP0650411 B1 EP 0650411B1 EP 93922537 A EP93922537 A EP 93922537A EP 93922537 A EP93922537 A EP 93922537A EP 0650411 B1 EP0650411 B1 EP 0650411B1
Authority
EP
European Patent Office
Prior art keywords
air
installation according
housing
heat exchanger
coolant
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
EP93922537A
Other languages
German (de)
English (en)
Other versions
EP0650411A1 (fr
Inventor
Alfred Keller
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.)
Weitmann and Konrad GmbH and Co KG
Original Assignee
Weitmann and Konrad GmbH and Co KG
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 Weitmann and Konrad GmbH and Co KG filed Critical Weitmann and Konrad GmbH and Co KG
Publication of EP0650411A1 publication Critical patent/EP0650411A1/fr
Application granted granted Critical
Publication of EP0650411B1 publication Critical patent/EP0650411B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B3/00—Drying solid materials or objects by processes involving the application of heat
    • F26B3/28—Drying solid materials or objects by processes involving the application of heat by radiation, e.g. from the sun
    • F26B3/283—Drying solid materials or objects by processes involving the application of heat by radiation, e.g. from the sun in combination with convection
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
    • F26B25/001—Handling, e.g. loading or unloading arrangements
    • F26B25/003—Handling, e.g. loading or unloading arrangements for articles
    • F26B25/004—Handling, e.g. loading or unloading arrangements for articles in the shape of discrete sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/50—Auxiliary process performed during handling process
    • B65H2301/51—Modifying a characteristic of handled material
    • B65H2301/517—Drying material

Definitions

  • the invention relates to a device for the thermal drying of material webs, sheets or the like, as described in the preamble of claim 1.
  • Known dryers which are used in modern printing machines to accelerate the drying of printing inks or varnishes, work, for example, with infrared heat radiators, to which radiation reflectors and opposing sheet guide plates are assigned. Since such IR dryers work with IR radiators which have an operating temperature of approximately 900 ° C. on a glass surface on the radiator, it is necessary to cool the dryer with an appropriate coolant, for example water with antifreeze. The heat absorbed in the dryer area is extracted in a suitable heat exchanger. Electrical supply and control devices or switch cabinets and suitable cooling devices for the coolant are required for the cooling device and the IR dryer, which are placed next to or away from the machine. A relatively space-consuming arrangement of the control cabinets and cooling devices next to the machine is often not possible in the pressroom, so that then arrangements have to be made which do not require long supply and coolant lines.
  • the invention is based on the object of providing a further generic device for thermal drying, which in particular enables space-saving installation.
  • the heat exchanger of the cooling device for the dryer device is thus arranged according to the invention in the air intake area of the air suction device, with which air and residual heat are removed from the dryer area.
  • Coolant has a significantly lower temperature than the sheet baffle to be cooled or the radiation reflector of the IR dryer.
  • the inventive arrangement of the heat exchanger with the air suction device required on the printing press not only enables a particularly compact arrangement to be achieved, but at the same time a separate cooling fan or the like can be used. save for the cooling device.
  • a particularly preferred development of the invention is specified in claim 4. Due to the common arrangement of the air suction device and the operating and monitoring means of the cooling device in a separate housing, the additional housing, the functional groups required for cooling the dryer device can be arranged in a modular manner. This ensures that the individual functional components can be preassembled in the factory and checked for proper function with regard to quality assurance, so that only the dryer and the supply module, i.e. the additional housing with the air suction and cooling device arranged therein, are assembled and together on the press need to be connected. In this way, customer-friendly, fast assembly can be achieved on site due to the short assembly times of the assemblies.
  • an expansion tank is arranged in the coolant circuit, which is also arranged in the additional housing and thus complements the functions accommodated in the supply module.
  • the embodiment according to claim 8 is provided . Not only can the various assemblies arranged in the additional housing be protected from hot air and contamination, but effective air extraction is also ensured since the connection housing ensures that the air is routed properly. Further advantageous embodiments are described in claims 9 to 11.
  • the space in the additional housing can be used to accommodate additional supply devices, since the air duct in the air extraction device is independent of the design of the additional housing. This also enables the additional housing to be easily adapted to the machine housing, with the design of the additional housing also being able to be adapted to the aesthetic design of the machine housing, without having to accept technical disadvantages.
  • an electrical supply unit can also be accommodated in the additional housing, which has electrical and / or electronic supply and control devices for the device according to the invention.
  • the shielding of the electrical supply unit from the warm air carrying solvent vapors is particularly important.
  • the controls for the device according to the invention are advantageously arranged on the additional housing.
  • the individual operating and display elements of the device can also be arranged on the control panel of the control station. In this case, only relatively simple control lines are required.
  • FIG. 1 shows, purely schematically, a delivery arm 10 of a sheet-fed offset printing machine on which the individual printed sheets are laid out on a stack 11.
  • the printed sheets are guided by a corresponding transport device along a transport path 12.
  • the transport path 12 is assigned a dryer device 13, which is designed, for example, as an IR radiation dryer and has a radiation reflector 14, which guides the infrared radiation generated by IR emitters (not shown in FIG. 1) onto the dryer device 13 along the transport path 12 Bows too reflected.
  • a sheet guide plate 15 is arranged as guide means for the printed sheets.
  • a cooling device with a heat exchanger 16, a flow monitor 17, an expansion tank 18 for a coolant and a circulation pump 19 is provided.
  • a coolant line 20 leads from the circulation pump 19 to the sheet guide plate 15, through which the coolant flows.
  • the coolant outlet of the sheet guide plate 15 is connected to the radiation reflector 14 via a connecting line 21, so that the coolant can also flow through it.
  • the coolant outlet side of the radiation reflector 14 is connected via a return line 22 to the coolant inlet of the heat exchanger 16, the outlet of which is connected via the flow switch 17 to the expansion tank 18 to which the circulation pump 19 is connected.
  • an air suction device 23 which has a pipe fan 25 arranged in an exhaust port 24.
  • the exhaust port 24 is arranged on a connection housing 26, in whose air inlet region 36, which extends across the transport path 12 for the printed sheets, the heat exchanger 16 of the cooling device is arranged.
  • the cooling device is assigned two thermostats, not shown, which monitor the coolant temperature.
  • the one thermostat controls the wake of the tubular fan 25 in order to avoid heat build-up after the dryer has been switched off.
  • the other thermostat switches off the dryer device 13 when the coolant has absorbed a maximum amount of heat corresponding to its heat capacity.
  • the dryer device 13 is also associated with an air knife, the blowing nozzles 27 of which extend across the width of the transport path 12 and which are arranged in front of and behind the radiation reflector 14 in the transport direction.
  • a dusting device 28 with dusting nozzles 29 and ionizing bars 30 can also be arranged behind the drying device 13.
  • the cooling device 23 with its heat exchanger 16, the flow monitor 17, the expansion tank 18 and the circulation pump 19 together with the air suction device 23 and a blower arrangement 31 for supplying the air knife blowing nozzles 27 arranged in an additional housing 32, which is attached to the machine housing 33 in the area of the delivery arm 10 of the offset printing press.
  • connection housing 26 of the air suction device is essentially cuboid and has in its bottom wall 34 a substantially rectangular opening 35 which extends over the width of the transport path 12 and which corresponds to a corresponding opening in the machine housing 33 and defines an air suction area 36.
  • the exhaust port 24 with the tube blower 25 is arranged approximately in the middle.
  • the substantially rectangular cross section of the air intake area 36 is adapted to the relatively small, round cross section of the pipe blower 25 or of the exhaust port 24.
  • the blower arrangement 31 for supplying the air doctor blower nozzles 27 has a blower 38 which is connected via a hose line 39 to an air quantity adjusting device 40 which has an actuating element 40 ′ which is arranged on an outer wall of the additional housing 32 and is accessible from the outside.
  • a connecting element 41 is provided which can be connected to the blowing nozzles 27 in a manner not shown in more detail via corresponding lines.
  • a heating register (not shown) can be installed in the additional housing in terms of flow in front of or behind the fan 38.
  • An electrical supply unit 42 is also arranged in the additional housing 32, the housing 42 'of which is fastened to an intermediate or stiffening wall 44 of the additional housing 32 via corresponding connecting elements 43.
  • the intermediate or stiffening wall 44 also serves for the thermal separation of the electrical supply unit 42 from the other units arranged in the additional housing 32.
  • the electrical Supply unit 42 which in a manner not shown contains a main switch, a motor protection switch and all the necessary back-up fuses and the electronic control circuits, has a connection device 45 for supply and control lines and an operating unit 46 with corresponding actuating and display elements, which are on the outside of a side wall 32 'of the additional housing 32 is arranged.
  • a supply module for the dryer device is thus created, which can be preassembled in the factory and checked for all functions.
  • the device according to the invention for thermal drying is carried out as follows:
  • the air suction device 23, the cooling device with heat exchanger 16, flow monitor 17, expansion tank 18 and circulation pump 19 and the fan arrangement 31 for the blowing nozzles 27 of the air doctor blade are completely pre-assembled in the additional housing 32 in the factory.
  • the electrical supply unit 42 is also completely electrically wired in the factory. Accordingly, the connections for the cooling medium and air are preinstalled ready for installation and checked for their perfect function and tightness.
  • the sheet guide plate 15, the radiation reflector 14 with the IR radiators and, if appropriate, the blowing nozzles 27 for the air doctor blade are to be mounted on the printing press.
  • the coolant, connection and return lines 20, 21, 22 must also be laid.
  • the supply module with the additional housing 32 is then mounted on the machine housing 33, the coolant line 20 being connected to a connecting element 45 is attached to an outlet line 46 of the circulation pump 19.
  • the return line 22 for coolant is connected to a connecting piece 47 on the heat exchanger 16. If available, the blowing nozzles 27 of the air doctor blade are connected to the air quantity adjusting device of the blower arrangement 31 via a connecting line (not shown) with the connecting element 41. Furthermore, the electrical connection lines for the IR radiators of the dryer device 13 are to be connected.
  • exhaust air connector 24 is connected to a suitable exhaust air line, in which filters can optionally be arranged.
  • the cooling device is usually to be filled with coolant.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Microbiology (AREA)
  • Drying Of Solid Materials (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Insertion Pins And Rivets (AREA)

Claims (16)

  1. Dispositif pour le séchage thermique de nappes et de feuilles de tissu ou similaire, déplacées le long d'une voie de transport (12) par des moyens de guidage (15) prévus dans la zone d'éléments de séchage (14) d'un séchoir (13),
    - avec un équipement de refroidissement (16, 17, 18, 19), les produits refroidissants duquel sont acheminés au moyen de conduites (20) adéquates vers les moyens de guidage (15) dans la zone du séchoir ainsi que sur les éléments de séchage (14) et de là vers un échangeur thermique (14), et
    - avec un dispositif d'aspiration d'air (23) pour aspirer l'air de la zone du séchoir,
    caractérisé en ce que
    l'échangeur thermique (16) de l'équipement de refroidissement est logé dans la zone d'aspiration d'air (36) en aval de la zone du séchoir.
  2. Dispositif selon la revendication 1, caractérisé en ce que le dispositif d'aspiration d'air (23) est logé dans un boîtier additionnel (32) monté dans une caisse de machine (33) entourant la voie de transport (12) et les éléments de séchage (14).
  3. Dispositif selon la revendication 1 ou 2, caractérisé en ce que l'échangeur thermique (16) de l'équipement de refroidissement est disposé dans le boîtier additionnel (32).
  4. Dispositif selon l'une des revendications 1 à 3, caractérisé en ce que l'équipement de refroidissement présente un circuit de produit refroidissant avec une pompe de circulation (19) disposée dans le boîtier additionnel (32) ensemble avec d'autres moyens d'exploitation et de surveillance (18, 17) de l'équipement de refroidissement pour le circuit de produit refroidissant.
  5. Dispositif selon la revendication 4, caractérisé en ce que dans les conduites de produit refroidissant (46, 20 ou 22) sortant de la pompe de circulation (19) et retournant dans l'échangeur thermique (16) sont prévus des raccordements amovibles (45, 47) disposés dans la zone de transition entre le boîtier additionnel (32) et la caisse de machine (33).
  6. Dispositif selon les revendications 4 ou 5, caractérisé en ce que un contrôleur de flux est prévu dans le circuit de produit refroidissant entre l'échangeur thermique (16) et la pompe de circulation (19), ce contrôleur étant logé dans le boîtier additionnel (32).
  7. Dispositif selon les revendications 4 à 6, caractérisé en ce que dans le boîtier additionnel (32) est logé un réservoir de compensation (18) pour produit de refroidissement disposé entre l'échangeur thermique (16) et la pompe de circulation dans le circuit de produit de refroidissement.
  8. Dispositif selon l'une des revendications précédentes, caractérisé en ce que le dispositif d'aspiration d'air présente un boîtier de raccordement, dans la zone d'aspiration d'air (36) duquel est disposé l'échangeur thermique (16) et sur lequel est branchée avec son côté d'aspiration une soufflerie (25).
  9. Dispositif selon la revendication 8, caractérisé en ce que le boîtier de raccordement (26) présente une zone d'aspiration d'air (35, 36), de préférence rectangulaire, s'étendant par-dessus toute la largeur de la voie de transport, recouvert essentiellement par l'échangeur thermique (16).
  10. Dispositif selon la revendication 8 ou 9, caractérisé en ce que la soufflerie (25) est disposée, vu en diagonale par rapport à la voie de transport (12), environ au milieu du boîtier de raccordement (26).
  11. Dispositif selon l'une des revendications 8 à 10, caractérisé en ce que la soufflerie est conçu comme soufflante axiale en tuyau (25) et dans laquelle est prévu un manchon d'air sortant (24) branché directement sur le boîtier de raccordement (26).
  12. Dispositif selon l'une des revendications 2 à 11, caractérisé en ce que une racle à air est affectée au séchoir (13), les buses soufflantes (27) de laquelle sont reliées, à travers des conduites adéquates, à une soufflerie (38) disposée dans le boîtier additionnel (32), les conduites menant vers les buses (27) étant branchées, de préférence dans la zone de transition entre le boîtier additionnel (32) et la caisse de machine (33), de façon amovible sur la soufflerie (38) ou des éléments de raccordement adéquats (41).
  13. Dispositif selon la revendication 12, caractérisé en ce que la racle à air d'un dispositif de régulation de débit d'air (40) est affectée à la soufflerie (38), ce dispositif étant disposé dans le boîtier additionnel (32) entre la soufflerie (38) et les éléments de raccordement (41) pour les conduites menant vers les buses soufflantes (27).
  14. Dispositif selon la revendication 13, caractérisé en ce que un organe de commande (40') pour le dispositif de régulation de débit d'air (40) est disposé sur le boîtier additionnel (32) et accessible de l'extérieur.
  15. Dispositif selon l'une des revendications 2 à 14, caractérisé en ce que dans le boîtier additionnel (32) est prévu un dispositif électrique et/ou électronique d'alimentation et de commande pour l'unité d'alimentation électrique comprenant le dispositif d'aspiration d'air (23), l'équipement de refroidissement, le séchoir (13) et/ou la soufflerie à racle d'air (38).
  16. Dispositif selon la revendication 2 à 15, caractérisé en ce que les organes de commande et/ou les moyens de contrôle et d'affichage pour le dispositif d'aspiration d'air (23), l'équipement de refroidissement, le séchoir (13) et/ou la soufflerie à racle d'air (38) sont disposés de préférence dans la zone de l'unité d'alimentation (42) sur le boîtier additionnel (32).
EP93922537A 1992-10-26 1993-10-09 Dispositif pour le sechage thermique de bandes, de feuilles, ou d'elements semblables Expired - Lifetime EP0650411B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE9214459U 1992-10-26
DE9214459U DE9214459U1 (de) 1992-10-26 1992-10-26 Vorrichtung zum thermischen Trocknen von Materialbahnen, -bögen o.dgl.
PCT/EP1993/002765 WO1994009987A1 (fr) 1992-10-26 1993-10-09 Dispositif pour le sechage thermique de bandes, de feuilles, ou d'elements semblables

Publications (2)

Publication Number Publication Date
EP0650411A1 EP0650411A1 (fr) 1995-05-03
EP0650411B1 true EP0650411B1 (fr) 1996-03-13

Family

ID=6885244

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93922537A Expired - Lifetime EP0650411B1 (fr) 1992-10-26 1993-10-09 Dispositif pour le sechage thermique de bandes, de feuilles, ou d'elements semblables

Country Status (6)

Country Link
US (1) US5546679A (fr)
EP (1) EP0650411B1 (fr)
JP (1) JP2823694B2 (fr)
AT (1) ATE135292T1 (fr)
DE (2) DE9214459U1 (fr)
WO (1) WO1994009987A1 (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4322324C2 (de) * 1993-07-05 2002-01-17 Heidelberger Druckmasch Ag Bogentransport und Bogenführung im Auslagebereich von Rotationsdruckmaschinen
DE4438922C2 (de) * 1994-10-31 1999-10-14 Koenig & Bauer Ag Einrichtung zur Trocknerwärme- und Trocknerluftentsorgung sowie Bogenführung
GB9607129D0 (en) * 1996-04-04 1996-06-12 Gew Ec Ltd Uv dryer with improved reflector
DE19651406C1 (de) * 1996-12-11 1998-06-10 Roland Man Druckmasch Trocknereinheit in einer Druckmaschine
DE19722957C2 (de) * 1997-05-31 2001-03-08 Koenig & Bauer Ag Bogenausleger in Druckmaschinen
DE29805248U1 (de) * 1998-03-24 1998-05-20 MAN Roland Druckmaschinen AG, 63075 Offenbach Bestäubungseinrichtung in einer Druckmaschine
DE19829383A1 (de) * 1998-07-01 2000-01-05 Koenig & Bauer Ag Leiteinrichtung in Druckmaschinen
DE19908375C2 (de) * 1999-02-26 2003-11-27 Roland Man Druckmasch Puderbestäubungseinrichtung für den Ausleger einer Druckmaschine
DE10047726B4 (de) * 2000-09-27 2007-07-26 Koenig & Bauer Aktiengesellschaft Bogenausleger in Druckmaschinen
DE10150041B4 (de) * 2001-10-10 2006-06-01 Platsch Gmbh & Co.Kg Austrag-Kühleinrichtung für eine Druckmaschine
DE10152593A1 (de) 2001-10-24 2003-05-08 Koenig & Bauer Ag Einrichtung zur Bedruckstoff- und Druckwerkskühlung mittels gekühlter Blasluft an Bogenrotationsdruckmaschinen
CA2449619A1 (fr) * 2003-01-07 2004-07-07 Heidelberger Druckmaschinen Aktiengesellschaft Dispositif de production d'une forme d'impression
DE10311464B4 (de) * 2003-03-15 2006-12-21 Koenig & Bauer Ag Kühlvorrichtung für Bogenleiteinrichtungen in Druckmaschinen
CN107839293A (zh) * 2017-11-22 2018-03-27 天津市津东华明纸箱厂 一种纸箱连续烘干箱

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3745307A (en) * 1971-05-06 1973-07-10 Sun Chemical Corp Apparatus for curing solvent-free printing material
US3967385A (en) * 1974-08-26 1976-07-06 National-Standard Company, Wagner-Litho Machinery Division Utilization of heat pipes for cooling radiation curing systems
US4015340A (en) * 1975-08-20 1977-04-05 Tec Systems, Inc. Ultraviolet drying apparatus
US4168579A (en) * 1976-11-19 1979-09-25 Ericsson Sylve J D Drying apparatus incorporating an air-moistening device
US4143278A (en) * 1977-05-16 1979-03-06 Geo. Koch Sons, Inc. Radiation cure reactor
DE3143089A1 (de) * 1981-10-30 1983-05-26 Heidelberger Druckmaschinen Ag, 6900 Heidelberg Vorrichtung zum trocknen von bedruckten bogen an offsetdruckmaschinen
US4501072A (en) * 1983-07-11 1985-02-26 Amjo, Inc. Dryer and printed material and the like
US4646446A (en) * 1985-11-04 1987-03-03 American Screen Printing Equipment Company UV curing apparatus
US4773167A (en) * 1986-05-19 1988-09-27 Amjo Infra Red Dryers, Inc. Heater
DE3709936C1 (de) * 1987-03-26 1987-12-03 Mannesmann Ag Kuehlvorrichtung fuer Drahtwindungen
NL8901052A (nl) * 1989-04-26 1990-11-16 Stork Contiweb Werkwijze voor het afkoelen van een uit een droger afkomstige materiaalbaan, alsmede een inrichting voor het uitvoeren van deze werkwijze.
GB9116120D0 (en) * 1991-07-25 1991-09-11 G E W Ec Ltd U.v.dryers

Also Published As

Publication number Publication date
EP0650411A1 (fr) 1995-05-03
DE9214459U1 (de) 1993-02-04
WO1994009987A1 (fr) 1994-05-11
JP2823694B2 (ja) 1998-11-11
ATE135292T1 (de) 1996-03-15
JPH08502457A (ja) 1996-03-19
US5546679A (en) 1996-08-20
DE59301909D1 (de) 1996-04-18

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