EP1847388A2 - Unité de séchage et séchoir doté d'une multitude de telles unités - Google Patents

Unité de séchage et séchoir doté d'une multitude de telles unités Download PDF

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Publication number
EP1847388A2
EP1847388A2 EP07004401A EP07004401A EP1847388A2 EP 1847388 A2 EP1847388 A2 EP 1847388A2 EP 07004401 A EP07004401 A EP 07004401A EP 07004401 A EP07004401 A EP 07004401A EP 1847388 A2 EP1847388 A2 EP 1847388A2
Authority
EP
European Patent Office
Prior art keywords
dryer
strips
units
unit according
conveying plane
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.)
Withdrawn
Application number
EP07004401A
Other languages
German (de)
English (en)
Other versions
EP1847388A3 (fr
Inventor
Hans G. Platsch
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.)
Platsch GmbH and Co KG
Original Assignee
Platsch 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 Platsch GmbH and Co KG filed Critical Platsch GmbH and Co KG
Publication of EP1847388A2 publication Critical patent/EP1847388A2/fr
Publication of EP1847388A3 publication Critical patent/EP1847388A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F23/00—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
    • B41F23/04—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing by heat drying, by cooling, by applying powders
    • B41F23/044—Drying sheets, e.g. between two printing stations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F23/00—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
    • B41F23/04—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing by heat drying, by cooling, by applying powders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F23/00—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
    • B41F23/04—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing by heat drying, by cooling, by applying powders
    • B41F23/0403—Drying webs
    • B41F23/0436—Drying webs using a combination of radiation, conduction or convection
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/004—Nozzle assemblies; Air knives; Air distributors; Blow boxes
    • 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

Definitions

  • the invention relates to a dryer unit according to the preamble of claim 1 and a dryer constructed with such units.
  • Dryers are generally used to dry products or surface coatings carried by them.
  • dryers are used to dry the thin layers of ink that are still wet after leaving a printing station.
  • this drying may mean simply expelling solvent or water, while with other printing inks it may involve crosslinking of polymeric components by the dryer.
  • the most commonly used dryers in the printing industry are hot air dryers and radiation dryers.
  • the radiation dryers are IR dryers and UV dryers.
  • dryers use hot air, infrared or UV radiation, their mechanical structure is quite similar.
  • the radiation or hot air is emitted by dryer strips, which extend across the width of the product to be dried.
  • dryer strips are spaced apart in the conveying direction of the printed product and often assembled using a frame to a unit integrally manageable.
  • a dryer unit according to the preamble of claim 1 is to be developed so that you can adjust the working conditions for the respective dryer strips according to local needs.
  • the removal of waste heat and the removal of exhaust air traced locally which can then adjust the respective temperature conditions and flow conditions for each dryer bar or a group of adjacent dryer strips individually according to local requirements.
  • the blast air emitted by them has a surface to be dried Products parallel component. This is advantageous in terms of avoiding vortices and also in terms of intimate contact between the blown air and the surface of the printed products.
  • a dryer as specified in claim 7, allows a well symmetrical drying of flat products from their two tops.
  • 10 denotes a total of a dryer which serves to dry the two sides of printed sheets 12, which are conveyed in a conveying plane 14 in the drawing from right to left.
  • the conveyance of the printing sheet 12 is effected by a known transport device, which is not shown in detail in the drawing and comprises two pairs of chains, which carrying the ends of grippers which respectively engage the leading edge of a signature.
  • the printed sheets 12 are thus moved substantially in the predetermined by the two chains conveying plane 14.
  • the dryer 10 can be arranged between two successive printing stations of a multicolor printing press to dry the last applied ink layer to the extent that it can be overprinted with another layer. However, the dryer 10 can also be arranged at the outlet of a multicolor printing press to thoroughly through-dry the printing layer comprising a plurality of printing ink layers, which may possibly comprise an overlying clearcoat layer, so that the printed sheets can be stacked in a subsequent delivery.
  • the dryer 10 has two dryer halves 16, 18, which are constructed symmetrically in mirror image and are aligned above and below the conveying plane 14.
  • the dryer halves 16, 18 each consist of four dryer units 20-1 to 20-4.
  • the latter each have the same structure and are arranged only at different locations of the conveying path of the printing sheet 12 above or below the conveying plane 14. It is therefore sufficient to describe one of the dryer units 20 in more detail below.
  • the dryer units 20 each comprise a separation box 24 with two parallel spaced side plates 26, which form the lateral boundaries of the considered strip box 20.
  • the frame plates 26 are connected to each other via dryer strips 28-1 to 28-5.
  • the middle dryer bar 28-3 is a hot air bar with integrated (not shown in the drawing) immersion heater, which directs a hot air curtain against the product conveying surface.
  • the dryer strips 28-1, 28-2, 28-4 and 28-5 are radiator strips, each carrying a rod-shaped radiator 30.
  • Blas Kunststoffkanal 32 is formed, which is acted upon by not shown in detail pipe connections from its ends with blown air.
  • the blast air channel 32 communicates via lateral connection channels 34 with a plurality of blast nozzles 36, which follow one another at regular intervals perpendicular to the plane of the drawing of FIG.
  • the dryer strip made of thermally conductive material such as aluminum, which is heated by the rod-shaped radiator, is cooled, and the sharp air jets emitted by the blowing nozzles 36 simultaneously discharge hot air from the surroundings of the radiators 30.
  • the sheet-metal hood 38 has, in its top wall 40, four slots 42-1 to 42-4 extending perpendicularly to the plane of the drawing, essentially from one to the other side plate 26, each of which lies above a section of the dryer unit 20 which is not covered with dryer strips.
  • the slots 42 can be obtained simply by creating corresponding cuts in the cover wall 40 of the sheet metal hood 38 and edges of the sheet metal tabs thus obtained by slightly more than 90 °.
  • End walls 46, 48, the metal cover 38 are pulled to the bottom of the side plates 26 and are connected via oblique connecting walls 50, 52 with the top wall 40.
  • the sheet metal hood 38 is surrounded and supported by a suction chamber 54, which is also formed by bent sheet metal parts, as shown in the drawing.
  • the suction chamber 54 has a ceiling wall 56 which extends parallel to the ceiling wall 40 of the sheet metal hood 38, and perpendicular to the conveying plane 14 extending end walls 58, 60 which lie downstream or upstream of the end walls 46, 48.
  • the end walls 58, 60 are connected to the ceiling wall 56 via oblique connecting walls 62, 64 which extend parallel to the connecting walls 50, 52.
  • the suction chamber 54 thus surrounds the last chamber 24 at an all-round distance, wherein the inclined partition walls 50, 54 and 62, 64 reduce dead corners.
  • One of the side plates 66 is connected to each having a large diameter suction nozzle 70.
  • the latter is connected to a suction device, as will be described in more detail later.
  • the connecting pipes typically have a diameter of 125 mm, the manifold a diameter of 160 mm.
  • the suction fans 72 typically have a suction power of about 2,500 m 3 / h.
  • blast air supply for the various dryer strips 28 is also shown in FIG. Serve four fans 74-1 to 74-4, which are housed in a supply cabinet 76 and provide two of the total of eight dryer units with blown air, as shown in detail in the drawing.
  • Figure 1 feed those blowers 74, which are associated with the terminal pairs of dryer units, at the same time terminal blow nozzles 76-1 to 76-4, which produce on the inlet side and the outlet side of the dryer barrier air curtains.
  • the tuyeres of the blower strips 76 are inclined at an angle to the conveying plane 14, as shown.
  • slots 42 are provided for all areas located between dryer strips 28 in the ceiling wall of the sheet metal hood 38.
  • the cross-sections of the slots are sized so that each dryer strip 28 directly in the vicinity that air volume is sucked, which is supplied there. In this way it is possible to set the temperature conditions and flow conditions for the dryer strips 28 largely independently.
  • the sheet-metal hood 38 can be replaced by a plurality of discrete sheet-metal parts of appropriate shape, which are respectively supported by support bars of one of the dryer strips 28, as indicated by dashed lines at 78.
  • the dryer strips 28 can be unscrewed from the position shown in FIG. 2, in which the axes of the blowing nozzles 36 are vertically aligned, so that the axes of the blowing nozzles 36 make an angle of preferably 50 ° to 70 ° with the conveying plane 14 again, preferably about 60 °.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Microbiology (AREA)
  • Drying Of Solid Materials (AREA)
  • Treatment Of Fiber Materials (AREA)
EP07004401A 2006-04-21 2007-03-03 Unité de séchage et séchoir doté d'une multitude de telles unités Withdrawn EP1847388A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200610019152 DE102006019152A1 (de) 2006-04-21 2006-04-21 Trocknereinheit sowie Trockner mit einer Mehrzahl solcher Einheiten

Publications (2)

Publication Number Publication Date
EP1847388A2 true EP1847388A2 (fr) 2007-10-24
EP1847388A3 EP1847388A3 (fr) 2010-12-22

Family

ID=38327046

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07004401A Withdrawn EP1847388A3 (fr) 2006-04-21 2007-03-03 Unité de séchage et séchoir doté d'une multitude de telles unités

Country Status (2)

Country Link
EP (1) EP1847388A3 (fr)
DE (1) DE102006019152A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012163829A1 (fr) * 2011-06-01 2012-12-06 Koenig & Bauer Aktiengesellschaft Presse

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2414891A (en) * 1944-02-19 1947-01-28 Offen Bernard Means for drying webs
DE2112706A1 (de) * 1970-03-19 1971-09-30 Wiggins Teape Res Dev Verfahren und Vorrichtung zum Trocknen von Materialbahnen
GB1517189A (en) * 1974-09-11 1978-07-12 Dornier Gmbh Lindauer Apparatus for treating webs of material
DE3216817A1 (de) * 1982-05-05 1983-11-10 Spitta-Verlag GmbH, 7460 Balingen Trockenvorrichtung fuer eine rollenoffsettmaschine
DE3517541A1 (de) * 1985-05-15 1986-11-20 Gerhard 4972 Löhne Bartling Duesentrockner fuer platten o.dgl.
DE19651301A1 (de) * 1996-12-10 1998-06-18 Hans G Platsch Trocknereinheit
DE19701084A1 (de) * 1997-01-15 1998-07-16 Hans Georg Platsch Trocknereinheit
EP1279498A2 (fr) * 2001-07-26 2003-01-29 Platsch GmbH & Co. KG Sécheur pour produits imprimés
US20030136019A1 (en) * 2002-01-18 2003-07-24 Gerald Leap Compact convection drying chamber for drying printed circuit boards and other electronic assemblies by enhanced evaporation
EP1455153A2 (fr) * 2003-03-07 2004-09-08 Fuji Photo Film Co., Ltd. Procédé de fabrication d'une feuille d'enregistrement par jet d'encre et dispositif de séchage pour une couche de revêtement

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2414891A (en) * 1944-02-19 1947-01-28 Offen Bernard Means for drying webs
DE2112706A1 (de) * 1970-03-19 1971-09-30 Wiggins Teape Res Dev Verfahren und Vorrichtung zum Trocknen von Materialbahnen
GB1517189A (en) * 1974-09-11 1978-07-12 Dornier Gmbh Lindauer Apparatus for treating webs of material
DE3216817A1 (de) * 1982-05-05 1983-11-10 Spitta-Verlag GmbH, 7460 Balingen Trockenvorrichtung fuer eine rollenoffsettmaschine
DE3517541A1 (de) * 1985-05-15 1986-11-20 Gerhard 4972 Löhne Bartling Duesentrockner fuer platten o.dgl.
DE19651301A1 (de) * 1996-12-10 1998-06-18 Hans G Platsch Trocknereinheit
DE19701084A1 (de) * 1997-01-15 1998-07-16 Hans Georg Platsch Trocknereinheit
EP1279498A2 (fr) * 2001-07-26 2003-01-29 Platsch GmbH & Co. KG Sécheur pour produits imprimés
US20030136019A1 (en) * 2002-01-18 2003-07-24 Gerald Leap Compact convection drying chamber for drying printed circuit boards and other electronic assemblies by enhanced evaporation
EP1455153A2 (fr) * 2003-03-07 2004-09-08 Fuji Photo Film Co., Ltd. Procédé de fabrication d'une feuille d'enregistrement par jet d'encre et dispositif de séchage pour une couche de revêtement

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012163829A1 (fr) * 2011-06-01 2012-12-06 Koenig & Bauer Aktiengesellschaft Presse
US8960891B2 (en) 2011-06-01 2015-02-24 Koenig & Bauer Aktiengesellschaft Printing machine

Also Published As

Publication number Publication date
EP1847388A3 (fr) 2010-12-22
DE102006019152A1 (de) 2007-10-31

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