EP1059497A1 - Unité de séchage - Google Patents

Unité de séchage Download PDF

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Publication number
EP1059497A1
EP1059497A1 EP00108105A EP00108105A EP1059497A1 EP 1059497 A1 EP1059497 A1 EP 1059497A1 EP 00108105 A EP00108105 A EP 00108105A EP 00108105 A EP00108105 A EP 00108105A EP 1059497 A1 EP1059497 A1 EP 1059497A1
Authority
EP
European Patent Office
Prior art keywords
unit according
dryer unit
dryer
wall
hollow profile
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
EP00108105A
Other languages
German (de)
English (en)
Other versions
EP1059497B1 (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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP1059497A1 publication Critical patent/EP1059497A1/fr
Application granted granted Critical
Publication of EP1059497B1 publication Critical patent/EP1059497B1/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
    • 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
    • B41F23/0406—Drying webs by radiation
    • B41F23/0413—Infrared dryers
    • 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
    • B41F23/0423—Drying webs by convection
    • B41F23/0426—Drying webs by convection using heated air
    • 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 for drying of printed products with at least one stretched Support body and a heat source arranged thereon.
  • Such dryer units are different Form in use, especially as hot air dryer units and infrared dryer units. They are each out elements specific to the finished product.
  • the present invention aims to provide a dryer unit be created, in which the supporting body optionally arranged individually or in groups close to each other can be provided.
  • the development of the invention according to claim 2 allows it to form nozzle channels in the longitudinal direction of the support body, which have a larger axial dimension corresponds to the wall thickness of the hollow profile.
  • Man receives well-focused air jets from the nozzle channels emerge when the inside of the hollow profile is pressurized with compressed air.
  • the development of the invention according to claim 6 serves to stiffen the hollow profile at substantially smooth outer boundary of the same.
  • clamping bolts can or the like, through which on the ends end plates of the hollow profile with the hollow profiles be clamped inside the hollow profile be performed. This is in view of a smooth surface outer boundary surface of the dryer unit from Advantage.
  • a dryer unit which deliver an air curtain that runs the length of the hollow sections is essentially constant and to a predetermined Temperature immediately before delivery to the Environment is heated. In this way there is heat loss kept small in the vicinity of the dryer unit.
  • Claim 12 ensures that by the heating cartridge skillful air is essentially laminar.
  • the development of the invention according to claim 13 is in view of the low manufacturing cost of the heating unit and in terms of low air throttling advantageous.
  • a defective heating cartridge is particularly easy and quick replace.
  • the development of the invention according to claim 17 is with a view to making the power connections easy to the heating cartridge is an advantage.
  • a section is obtained on the one hand of the hollow profiles in the longitudinal direction, to the other the various hollow profiles over the end plates mechanically combine a dryer unit into one unit.
  • FIG. 1 shows a dryer unit, designated overall by 10, which four dryer rails 12-1, 12-2, 12-3 and 12-4. Where below on the dryer rails general reference is simply made by one Dryer bar 12 spoken.
  • the dryer strips 12 are arranged in a grid. Between the dryer strips 12-1 and 12-2 or 12-3 and 12-4 there is an empty grid, the dryer strips 12-2 and 12-3 are immediately adjacent.
  • the dryer strips 12 each comprise a support body 14, by cutting a corresponding piece from an endless extruded hollow profile 16 (FIG 4) was obtained.
  • the hollow profile 16 has a total of 18 Outside surface, the clear contour of which is a rectangle rounded corners.
  • longitudinal holes 20 provided at the rounded corners. These are at the top ends of side walls 22, 24 of the profile. An upper wall 26 and a lower wall 28 close the side walls 22, 24 to form a continuous rectangle.
  • the side walls 22, 24 and the walls 26, 28 give a total an inner surface 30 of the hollow profile 16 before.
  • the bottom 32 of the top wall 26 hang in the neighborhood two stiffening ribs at their lateral ends 34 down. At the same time, these ensure the corresponding Wall area for more meat, so you can go in there the upper wall 26 milled windows a larger Maintains contact area for deployed units and if necessary can also provide longer mounting holes.
  • the upper side 36 of the lower wall 28 contributes analogously their ends two diagonally upwards and inwards Stiffening ribs 38.
  • the distributor channel 44 is in the finished state Hollow profile in flow connection with nozzle channels 46, which are indicated by dashed lines in FIG. 4 and through the lower wall 28 and from the latter supported nozzle ribs aligned with the distributor channel 44 48 extend through.
  • the nozzle channels 46 are perpendicular to the plane of the drawing Figure 4 at a regular distance from each other on the distributed over the entire length of the support body 14, the provided in the two nozzle ribs 48 nozzle channels 46 are offset by half a division.
  • the side walls 22, 24 are with undercut mounting grooves 50 formed which has an angled bottom wall 52 and their outward-facing open End delimited by longitudinal holding flanges 54, 56 is.
  • the mounting grooves 50 are so wide that next to they still have a cable groove 58 in which electrical Lines can find reception.
  • the dryer strips 12 at both ends each have a heating unit 60, which by a in the upper wall 26 of the dryer strip milled window 62 are inserted into the support body 14.
  • the heating unit has a mounting plate 64, the outside via a frame 66 a Cover plate 68 carries.
  • fastening screws for this 70, 72 provided, which from below or above in threaded holes 74 engage provided in the frame 66 are.
  • the mounting plate 64 carries a screw 76 Guide ring 78, which is a to the right in Figure 6 has tapered inner surface 80.
  • the Guide ring 78 is at its right in Figure 6 End provided with a counter bore 82, which the one end of a heating cartridge designated 84 in total records.
  • This has one made of heat resistant Material (e.g. ceramic) made cylindrical outer wall 86 as well as star-shaped inward in axial planes Partitions 88 made of the same material. Latter together with the outer wall form 86 longitdinale channels 90 with sector-shaped cross section.
  • the individual sectors are circular Cross-sectional longitudinal Channels 90 through the outer wall 86 and the intermediate walls 88 are limited, in each case sections 92 of one coiled heating wire 94 arranged.
  • the spiral axis the heating wire sections 92 each run parallel to the longitudinal axis of the heating cartridge 84, and the various straight heating wire sections 92 are short Wire bridges 96 connected, which are formed by recesses 98 extend in the end faces of the intermediate walls 88, of which every second one remains free in each end face.
  • the right end of the heating cartridge 84 is of a holding part 106, which is a transverse main wall in which an opening 108 is provided (Fig. 5), the cross section of which is the cross section of the heating cartridge 84 corresponds.
  • Three holding fingers jump from the main wall 106 110, which are offset from each other by 90 °, axially back.
  • the holding part 106 has an angled holding section 112, by means of a screw 114 with the mounting plate 64 is connected.
  • the housing 116 formed by the parts 66 to 70 carries e.g. injected with the tabs 104 by not shown cable connected tab 118, via which the power supply for the heating cartridge 84 connected becomes.
  • the ends of the support body 14 are with end plates 120 tense. Long bolts 122 are used for this, which are passed through the bores 20 and at the other end wear nuts 124, the other of the end plates 120 work together.
  • the end plates 120 are of a regular pattern of holes through which the bolts 122 extend through. Those of the holes the end plates 120, which in a considered embodiment of the Dryer unit will not be needed by Blind screws 126 and associated nuts 128 closed.
  • the end plates 120 can have a boundary wall form for an air plenum 130 that additionally through an end plate 132 and side plates 134, 136 is limited.
  • the connection of the end plates 120 with end plates 132 is made using of bolts 138 and spacer sleeves 140 surrounding them and nuts 142.
  • the end plates 120 each carry a connection piece 144 and 146, respectively, which are connected to a fan 148.
  • the end plate 132 on the right in FIG. 1 carries further two connector parts 150, 152, which with further Connector parts 154, 156 are connectable, which of electrical supply cables 158, 160 for the Heating units 60 are worn.
  • the width of the IR emitter and the distance between the nozzle ribs 48 is selected so that those emerging from the nozzle channels 46 Air jets just outside the IR emitter 164 passes. In this way, these Air jets are not throttled, but carry heat away away from the IR radiators 164.
  • the IR radiators 164 are electrically supplied also via connector parts 150, 152.
  • the dryer unit described above works as follows:
  • the distribution chambers are connected via the connecting pieces 144, 146 130 pressurized air supplied. Crosses this the heating units 60 and is heated to a temperature warmed up by about 120 °. The warmed air comes into the nozzle channels via the distributor channels 44 46 and is from there towards the level of funding printed printed products delivered.
  • the IR radiators 164 are supplied with current at the same time and also give towards printed products towards IR rays. They also warm themselves strongly on. By compared to the surface temperature the IR radiator 164 has low temperature Hot air flowing out through the nozzle channels 46, the IR radiators are cooled, at the same time one After-heating of the hot air is obtained.
  • the remaining gaps between the dryer strips 12-1 and 12-2 or Dryer rails 12-3 and 12-4 are identical with others Fill out the built-up dryer strips. Will be against you only need a smaller dryer output omit one or both of the dryer strips 12-2 and 12-3.
  • An electrical junction box 174 is on the side of the support body 14 placed.
  • Mounting groove 50 has an inverted P-shaped cross section Profile 176 screwed on, which in his upper section one in the longitudinal direction of the dryer bar extending channel specifies.
  • Profile 176 is another profile 178 screwed, which the Form of a U-shaped channel open at the bottom.
  • the profile 178 is in the drawing plane of FIG 3 vertical direction successively three rollers 180 stored, which over the profile 178 after survive below.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Microbiology (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Drying Of Solid Materials (AREA)
EP00108105A 1999-06-10 2000-04-13 Unité de séchage Expired - Lifetime EP1059497B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29910122U 1999-06-10
DE29910122U DE29910122U1 (de) 1999-06-10 1999-06-10 Trocknereinheit

Publications (2)

Publication Number Publication Date
EP1059497A1 true EP1059497A1 (fr) 2000-12-13
EP1059497B1 EP1059497B1 (fr) 2004-09-15

Family

ID=8074605

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00108105A Expired - Lifetime EP1059497B1 (fr) 1999-06-10 2000-04-13 Unité de séchage

Country Status (3)

Country Link
US (1) US6601318B1 (fr)
EP (1) EP1059497B1 (fr)
DE (2) DE29910122U1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004051990A1 (de) * 2004-10-25 2006-05-04 Windmöller & Hölscher Kg Gebläseeinheit in einem Trockner für eine Druckmaschine

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7187856B2 (en) * 2001-08-27 2007-03-06 Flexair, Inc. Compact integrated forced air drying system
US6931205B2 (en) * 2001-08-27 2005-08-16 Flexair, Inc. Compact integrated forced air drying system
US7809253B2 (en) * 2001-08-27 2010-10-05 Flexair, Inc. Compact air drying system
DE10225753B4 (de) * 2002-06-10 2009-08-13 Duo Technik Gmbh Trocknereinrichtung
EP1709369B1 (fr) * 2003-08-15 2012-04-04 FlexAir, Inc. Système de séchage intégré à air forcé
US8322047B2 (en) * 2007-06-29 2012-12-04 Moore Wallace North America, Inc. System and method for drying a freshly printed medium

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2280947A (en) * 1991-07-25 1995-02-15 G E W U.V.Dryers
DE4442940A1 (de) * 1994-12-02 1996-06-05 Hans Georg Dipl Ing Platsch Blasleiste zur Verwendung in der Drucktechnik
US5668921A (en) * 1994-10-14 1997-09-16 Essler; Karl-Hermann Hot-air dryer with infrared heater and slit-shaped outlet
DE19651301A1 (de) * 1996-12-10 1998-06-18 Hans G Platsch Trocknereinheit
DE29901402U1 (de) * 1998-01-27 1999-05-12 DeMoore, Howard W., Dallas, Tex. Zwischenstationäre Infrarotheizung

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5317127A (en) * 1992-08-28 1994-05-31 Pitney Bowes Inc. Apparatus including air blowing and infrared light means for drying ink on a sheet
DE4244003A1 (de) * 1992-12-24 1994-06-30 Platsch Hans G Strahlungstrocknerleiste und Strahlungstrockner mit solcher
DE4442942B4 (de) * 1994-12-02 2007-10-18 Hans Georg Platsch Heißluft-Blasleiste zur Verwendung in der Drucktechnik
DE19701084A1 (de) * 1997-01-15 1998-07-16 Hans Georg Platsch Trocknereinheit

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2280947A (en) * 1991-07-25 1995-02-15 G E W U.V.Dryers
US5668921A (en) * 1994-10-14 1997-09-16 Essler; Karl-Hermann Hot-air dryer with infrared heater and slit-shaped outlet
DE4442940A1 (de) * 1994-12-02 1996-06-05 Hans Georg Dipl Ing Platsch Blasleiste zur Verwendung in der Drucktechnik
DE19651301A1 (de) * 1996-12-10 1998-06-18 Hans G Platsch Trocknereinheit
DE29901402U1 (de) * 1998-01-27 1999-05-12 DeMoore, Howard W., Dallas, Tex. Zwischenstationäre Infrarotheizung

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004051990A1 (de) * 2004-10-25 2006-05-04 Windmöller & Hölscher Kg Gebläseeinheit in einem Trockner für eine Druckmaschine
DE102004051990B4 (de) * 2004-10-25 2009-01-02 Windmöller & Hölscher Kg Gebläseeinheit in einem Trockner für eine Druckmaschine

Also Published As

Publication number Publication date
DE50007732D1 (de) 2004-10-21
US6601318B1 (en) 2003-08-05
DE29910122U1 (de) 1999-09-23
EP1059497B1 (fr) 2004-09-15

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