EP0774342A1 - Vorrichtung zum Erhitzen einer Maschine zur Herstellung von Wellpappe - Google Patents

Vorrichtung zum Erhitzen einer Maschine zur Herstellung von Wellpappe Download PDF

Info

Publication number
EP0774342A1
EP0774342A1 EP96118181A EP96118181A EP0774342A1 EP 0774342 A1 EP0774342 A1 EP 0774342A1 EP 96118181 A EP96118181 A EP 96118181A EP 96118181 A EP96118181 A EP 96118181A EP 0774342 A1 EP0774342 A1 EP 0774342A1
Authority
EP
European Patent Office
Prior art keywords
heating
rigid frame
enclosure
welding
heating enclosure
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
EP96118181A
Other languages
English (en)
French (fr)
Other versions
EP0774342B1 (de
Inventor
Klaus Nagel
Swen Joerissen
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.)
Peters Maschinenfabrik GmbH
Original Assignee
Peters Maschinenfabrik 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 Peters Maschinenfabrik GmbH filed Critical Peters Maschinenfabrik GmbH
Publication of EP0774342A1 publication Critical patent/EP0774342A1/de
Application granted granted Critical
Publication of EP0774342B1 publication Critical patent/EP0774342B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
    • B31F1/20—Corrugating; Corrugating combined with laminating to other layers
    • B31F1/24—Making webs in which the channel of each corrugation is transverse to the web feed
    • B31F1/26—Making webs in which the channel of each corrugation is transverse to the web feed by interengaging toothed cylinders cylinder constructions
    • B31F1/28—Making webs in which the channel of each corrugation is transverse to the web feed by interengaging toothed cylinders cylinder constructions combined with uniting the corrugated webs to flat webs ; Making double-faced corrugated cardboard
    • B31F1/2845—Details, e.g. provisions for drying, moistening, pressing
    • B31F1/285—Heating or drying equipment

Definitions

  • the present invention relates to a heating device for a machine for manufacturing corrugated cardboard, in particular a convection heating device using a heating fluid circulating in a convector.
  • the heating devices used to date in the field of the manufacture of corrugated cardboard generally consist of a convector comprising a cast iron enclosure in which saturated steam circulates in spiral channels.
  • This cast iron enclosure has a heat exchange surface with the cardboard to be heated which is smooth and flat.
  • This type of device has a definite advantage in that the heat exchange surface, being smooth and flat, does not retain the dust and impurities left by the passage of the cardboard. Its maintenance is therefore simplified and the heat exchange between the carton and the exchange surface is very acceptable.
  • the temperature of the upper surface of the latter is lower than the temperature of its lower part and this causes distortion of the surface of the enclosure causing it to lose its flatness, which greatly disrupts the proper functioning of the device.
  • FIG. 1 Another corrugated cardboard heating device is also known, the construction of which was aimed at improving the device described above.
  • the cast iron construction has been replaced by a welded, lighter construction comprising a heating plate produced by assembling a series of steel tubes placed side by side. These steel tubes are connected together, in the manner of a coil, so as to allow the passage of steam in the hot plate.
  • a cover sheet is then welded to the upper face of the series of tubes so as to present a heat exchange surface with the cardboard which is smooth and flat.
  • Such a device is described in more detail in patent DE-2 213 745.
  • the machining time is relatively high and the cover sheet constitutes a thermal barrier which prevents appropriate control of the distribution of temperatures over the exchange surface.
  • This sheet steel of thin 8 is then connected to the lower part 11 of the closure plane 7 by spot welding in a staggered configuration so that the welding points 19 are distant from each other by a sufficient distance, in the range of twenty eight to thirty millimeters, diagonally.
  • the front chamber 12 is equipped, by welding, with a connector 14 and the rear chamber 13 is, for its part, also equipped by welding, with a connector 15.
  • the connector 15 is then closed and a fluid under high pressure , for example hydraulic oil, is introduced into the front chamber 12 through the connector 14.
  • the injection of this fluid under high pressure into the front chamber 12 will have the effect of deforming the thin steel sheet 8 by so that it is arched in the areas not linked to the closure plane 7 so as to form cells 18 communicating with each other.
  • the high pressure fluid will then be removed from the heating enclosure 1 and the latter may therefore receive a heat fluid such as, for example, saturated steam.
  • the heating chamber 1 is further provided with a plurality of fixing points 16, constituted by threaded rods, welded at the location of some of the welding points 19 connecting the thin steel sheet 8 to the plane 7.
  • These fixing points 16 are intended to serve as anchors to ensure a perfect connection with a rigid frame, described in more detail in relation to Figures 5 and 6, so as to allow the adjustment of the flatness of the 'heating enclosure 1 as well as to give the assembly an acceptable overall rigidity.
  • FIG. 2 is a schematic view showing the flow of steam in the heating plate 17 of the heating enclosure 1.
  • the saturated steam is injected into the front chamber 12 of the heating plate 17 by the connector 14.
  • the saturated steam first distributed in the front chamber and will cross, regularly, the plate heating 17 through the cells 18 to finally lead into the rear chamber 13 and exit the heating chamber 1 through the connector 15.
  • the vapor flow is therefore divided by the connection points (welding points 19) between the thin steel sheet 8 and the closing plane 7. This will result in a turbulent flow of the vapor flow due to the small passage sections of the cells 18 and thereby will also obtain an increase in the heat transmission to the closing plane 7 which will be in contact with the corrugated cardboard.
  • FIG 3 is a sectional view along III-III of Figure 1 in which we can see the arrangement of the various components of the heating enclosure 1.
  • This figure also shows the cells 18 created by the deformation of the sheet d 'thin steel 8 at the places where it is not connected to the lower part 11 of the closure plane 7 by the welding points 19.
  • only one connector 14 for the entry of steam and only a connector 15 for the steam outlet have been shown. It is understood that one could imagine that several connections 14 for the steam inlet and that several connections 15 for the steam outlet are connected to their respective front 12 and rear 13 chambers to improve and regularize the flow of the vapor flow.
  • FIG. 4 is a side view, in partial section, of FIG. 1 showing the configuration of the front 12 and rear 13 chambers obtained by folding the front part 9 and the rear part 10 of the sheet metal to forty-five degrees 'thin steel 8.
  • the additional reference signs used in Figures 3 and 4 are the same as those already used in connection with the description of Figure 1 which may also be referred to.
  • the blocking in position of this frame 21 is obtained by means of the counter nuts 31 placed on the screws 29.
  • the device 20 for adjusting the flatness of the exchange surface of the heating enclosure 1 is constituted by a rigid frame 34 made of welded construction. This rigid frame is obtained by assembling U-shaped irons 35, 36, 37 of which only three have been shown here for reasons of simplification of the description. It is understood that one could use many more depending on the number of adjustment points chosen to ensure the flatness of the exchange surface. These various U-shaped irons 35, 36, 37 are interconnected by U-shaped irons or possibly flat irons 38, 39.
  • the heating enclosure 1 is attached to the rigid frame 34 by tie rods 40 which can be directly screwed to one of their ends on the threaded parts of the fixing points 16 (see figure 3).
  • the other end of the tie rods 40 has a threaded portion 41 and is fixed, by means of washers 42, nuts 43 and lock nuts 44, in the lower wing of the U-shaped iron 35, 36, 37 of the frame rigid 34.
  • the flatness of the exchange surface is adjusted by acting on the means of fixing the tie rods 40 to the rigid frame 34.
  • the bars 45, respectively the plates 46 are provided with a wing 47 which engages in the slot 48 of a connecting piece 49 screwed to the upper end of each of the tie rods 40.
  • a screw will be used or a pin, not shown, which will pass through the connecting piece and engage in an elongated hole of the wing 47.
  • the wings 47 of the bars 45 located upstream that is to say on the left of FIG. 5, do not will not have an elongated hole but a simple bore. Due to the use of tie rods 40, it would also be plausible to imagine for these, a rigid attachment to the heating enclosure 1. In this case, the thermal deformations of the heating enclosure 1 would be compensated by the bending of the tie rods 40.
  • connection between the upper end of the tie rods 40 and the wing 47 is carried out using a pin passing through the connecting piece 49 to engage in a drilled bore in the connecting piece 49, this bore being of a diameter larger than the diameter of the pin.
  • the heating enclosure 1 can also be fixed laterally, so as to take account of thermal expansion phenomena, to the frames of the machine by means of the plates 24 and 25 appearing in FIG. 7. This method of fixing therefore makes it possible to take into account thermal expansion constraints so that they do not influence the flatness of the heat exchange surface.
  • the heating chamber 1 will thus be laterally floating relative to the rigid frame 34 while being firmly connected thereto by the tie rods 40.
  • the adjustment of the flatness will be carried out in the same manner as mentioned previously by means of the members for fixing the tie rods 40 to the rigid frame 34.
  • FIG. 7 is a view showing the arrangement of the bodies 20 for correcting the flatness of the heating enclosure 1. This figure is in fact a view from below of the heating enclosure 1 which shows the use of plates 46 in place and place of the bars 45 shown in FIG. 8. The plates 46 are fixed to the heating enclosure 1 by the fixing points 16.
  • FIG 8 is a view showing a method of fixing the heating enclosure 1 on a frame 53 connected to the side frames of the corrugated cardboard making machine.
  • the front 5 and rear 6 walls of the heating enclosure 1 are used to connect the latter to the frames of the corrugated cardboard making machine.
  • connection between the heating enclosure 1 and the rigid frame 34 by means of members such as tie rods has, inter alia, the advantage of avoiding heat transmission from the enclosure to the frame due to the low connection sections and even allows, if necessary, the use of insulating connections so as to further reduce the heat transmissions thus canceling any deformation of the rigid frame 34 which will therefore fully fulfill its solid basic function to adjust the flatness of the heating chamber exchange surface 1.
  • the heating enclosure 1 constitutes a very flexible membrane allowing the mechanical adjustment of its exchange surface by means of a rigid frame which is not dependent on the thermal conditions of the enclosure, in the establishment of a better heat transmission on the plane of the exchange surface, in the improvement of the regulation of the temperature due to the low thermal inertia of the device, in the use of a small volume of the saturated steam flow thus making it possible to eliminate any accumulator or pressure tank and in reducing the manufacturing costs due to the possibility of achieving a light construction of the device.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
EP96118181A 1995-11-15 1996-11-13 Heizvorrichtung für eine Maschine zur Herstellung von Wellpappe Expired - Lifetime EP0774342B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH323195 1995-11-15
CH3231/95 1995-11-15

Publications (2)

Publication Number Publication Date
EP0774342A1 true EP0774342A1 (de) 1997-05-21
EP0774342B1 EP0774342B1 (de) 1999-05-06

Family

ID=4251488

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96118181A Expired - Lifetime EP0774342B1 (de) 1995-11-15 1996-11-13 Heizvorrichtung für eine Maschine zur Herstellung von Wellpappe

Country Status (3)

Country Link
US (1) US5785118A (de)
EP (1) EP0774342B1 (de)
DE (1) DE69602337T2 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998002298A1 (en) * 1996-07-17 1998-01-22 Marquip, Inc. Aparatus and method for leveling and supporting the hot plates in a double backer for corrugated paperboard
EP3738759A1 (de) 2019-05-13 2020-11-18 Guangdong Fosber Intelligent Equipment Co., Ltd. Heizplatte für beklebemaschine zur herstellung von wellpappe und beklebemaschine mit einer vielzahl dieser platten

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6759956B2 (en) * 1998-10-23 2004-07-06 Royal Thoughts, L.L.C. Bi-directional wireless detection system
DE10004754C1 (de) * 2000-02-03 2001-08-02 Sollich Kg Kühltunnel für Süßwarenstücke

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1088794B (de) * 1959-03-05 1960-09-08 Waldhof Zellstoff Fab Trockenvorrichtung fuer Wellpappen-maschinen
GB886589A (en) * 1960-06-17 1962-01-10 Samuel M Langston Co Method of and apparatus for drying corrugated paper board
DE2213745A1 (de) 1972-03-22 1973-10-04 Peters Maschf Werner H K Heizplatte, insbesondere fuer eine wellpappen-beklebemaschine
DE2604879A1 (de) * 1976-02-07 1977-08-11 Gerhard & Rauh Plattenheiz- bzw. -kuehlkoerper
GB1554992A (en) * 1977-02-10 1979-10-31 Molins Machine Co Inc Double facer platen
EP0460872A1 (de) * 1990-06-06 1991-12-11 ROLLS-ROYCE plc Wärmetauscher

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2085191A (en) * 1935-08-24 1937-06-29 Westinghouse Electric & Mfg Co Plate condenser
US3237687A (en) * 1963-02-08 1966-03-01 Grove Valve & Regulator Co Heat transfer chamber
US4484623A (en) * 1983-04-08 1984-11-27 Paul Mueller Company Dual flow condenser with through connections
DE3422684C2 (de) * 1984-06-19 1986-07-24 Zehnder-Beutler GmbH, 7630 Lahr Hohlplattenheizkörper
US4678027A (en) * 1984-12-14 1987-07-07 Paul Mueller Company Dual-walled coiled plate heat exchanger with vented interface
US4739825A (en) * 1986-01-14 1988-04-26 General Electric Company Apparatus for cooling the core of a liquid cooled transformer
US5183525A (en) * 1990-05-24 1993-02-02 United Container Machinery Group, Inc. Heater for a double facing corrugating machine
US5501762A (en) * 1994-06-07 1996-03-26 Marquip, Inc. Hot plate for corrugated paperboard double facer

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1088794B (de) * 1959-03-05 1960-09-08 Waldhof Zellstoff Fab Trockenvorrichtung fuer Wellpappen-maschinen
GB886589A (en) * 1960-06-17 1962-01-10 Samuel M Langston Co Method of and apparatus for drying corrugated paper board
DE2213745A1 (de) 1972-03-22 1973-10-04 Peters Maschf Werner H K Heizplatte, insbesondere fuer eine wellpappen-beklebemaschine
DE2604879A1 (de) * 1976-02-07 1977-08-11 Gerhard & Rauh Plattenheiz- bzw. -kuehlkoerper
GB1554992A (en) * 1977-02-10 1979-10-31 Molins Machine Co Inc Double facer platen
EP0460872A1 (de) * 1990-06-06 1991-12-11 ROLLS-ROYCE plc Wärmetauscher

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998002298A1 (en) * 1996-07-17 1998-01-22 Marquip, Inc. Aparatus and method for leveling and supporting the hot plates in a double backer for corrugated paperboard
EP3738759A1 (de) 2019-05-13 2020-11-18 Guangdong Fosber Intelligent Equipment Co., Ltd. Heizplatte für beklebemaschine zur herstellung von wellpappe und beklebemaschine mit einer vielzahl dieser platten
US11260617B2 (en) 2019-05-13 2022-03-01 Guangdong Fosber Intelligent Equipment Co., Ltd. Hot plate for double facer for the production of corrugated board and double facer comprising a plurality of said plates

Also Published As

Publication number Publication date
US5785118A (en) 1998-07-28
DE69602337D1 (de) 1999-06-10
DE69602337T2 (de) 1999-10-14
EP0774342B1 (de) 1999-05-06

Similar Documents

Publication Publication Date Title
EP0515669B1 (de) Plattenwärmetauscher
FR2907539A1 (fr) Echangeur-condenseur pour chaudiere a condensation
EP2912396B1 (de) Wärmetauscher, insbesondere für ein kraftfahrzeug
EP0774342B1 (de) Heizvorrichtung für eine Maschine zur Herstellung von Wellpappe
CH639187A5 (fr) Chaudiere, notamment pour installation de chauffage.
FR2803907A1 (fr) Echangeur de chaleur pour gaz d'echapement
FR2749647A1 (fr) Condenseur a reservoir separe pour installation de climatisation, notamment de vehicule automobile
EP0204791B1 (de) Feuerraumwand mit luftzuführungsdüsen, die aus zwei sich ergänzenden teilen geformt sind
EP0687884A1 (de) Hülle gegen Durchbiegung
FR2702549A1 (fr) Echangeur de chaleur, notamment radiateur d'air de suralimentation d'un moteur à combustion interne.
FR2503836A1 (fr) Bruleur multiflammes
FR2858845A1 (fr) Echangeur de chaleur et procede de fabrication
EP0611940B1 (de) Vorrichtung mit zwei Wärmetauschern und einem Ausdehnungsgefäss
BE1003838A5 (fr) Machine a repasser-secher.
FR2793875A1 (fr) Echangeur thermique a plaques
EP3430339B1 (de) Wärmetauscher, insbesondere für ein fahrzeug, speziell ein kraftfahrzeug
FR2529995A1 (fr) Chaudiere d'atre
CH702428A1 (fr) Dispositif de mise en attente d'armatures de liaison entre deux parties d'un ouvrage en beton.
EP3519755B1 (de) Flüssigkeitssammelbehälter für einen wärmetauscher, zugehöriger wärmetauscher
FR2542073A1 (fr) Capteur solaire plan a liquide caloporteur
FR2850160A1 (fr) Dispositif de transfert thermique comprenant un module isolant
FR2633379A1 (fr) Echangeur de chaleur a impact de jets
BE366960A (de)
BE532193A (de)
BE449289A (de)

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19961113

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE DK GB IT NL

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

17Q First examination report despatched

Effective date: 19980707

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE DK GB IT NL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 19990506

REF Corresponds to:

Ref document number: 69602337

Country of ref document: DE

Date of ref document: 19990610

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19990614

ITF It: translation for a ep patent filed

Owner name: STUDIO INGG. FISCHETTI & WEBER

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 19990806

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20011015

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20011030

Year of fee payment: 6

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20021113

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030603

GBPC Gb: european patent ceased through non-payment of renewal fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20051113