EP0485731A1 - Verbindungsvorrichtung für eine Wellpappenmaschine - Google Patents

Verbindungsvorrichtung für eine Wellpappenmaschine Download PDF

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Publication number
EP0485731A1
EP0485731A1 EP91116910A EP91116910A EP0485731A1 EP 0485731 A1 EP0485731 A1 EP 0485731A1 EP 91116910 A EP91116910 A EP 91116910A EP 91116910 A EP91116910 A EP 91116910A EP 0485731 A1 EP0485731 A1 EP 0485731A1
Authority
EP
European Patent Office
Prior art keywords
section
nozzles
series
rollers
transverse
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
EP91116910A
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English (en)
French (fr)
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EP0485731B1 (de
Inventor
Gregor Schoch
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.)
Bobst Mex SA
Original Assignee
Bobst SA
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 Bobst SA filed Critical Bobst SA
Publication of EP0485731A1 publication Critical patent/EP0485731A1/de
Application granted granted Critical
Publication of EP0485731B1 publication Critical patent/EP0485731B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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

Definitions

  • the present invention relates to an assembly device for a strip element composed of superimposed and glued layers, constituting a so-called "double-sided" station of a machine for producing corrugated cardboard and in which said layers are of continuous passage. in strip form.
  • the corrugated cardboard is made up of a first layer of cardboard called “single-sided” and made up of fluted paper glued to a flat cover paper, this first layer also being assembled by gluing to a second layer which can either be a second flat outer cover paper, to form a corrugated cardboard called “double-sided", or a second "single-sided” cardboard plus a cover paper to then form a corrugated cardboard called “double-double”.
  • Corrugated cardboards with "triple flute” are also known, manufactured in a similar manner.
  • a machine for manufacturing such corrugated cardboard, also called “corrugator” usually comprises a first part called “wet” in which the cardboard is made and a second part called “dry” in which this cardboard is cut and stacked.
  • the first "wet" part begins with a station commonly known in the industry as “single-sided”.
  • the fluted paper that is to say intended to be fluted, previously heated and humidified passes between two fluted trees, themselves heated with steam.
  • the grooves thus formed are held against the lower grooved cylinder by either combs or by external means (relative to the cylinder) under pressure or internal under pressure.
  • An adjacent sizing drum then deposits glue on the ridges of the grooves and the preheated cover paper is applied, under pressure and temperature, against the ridges by a second press drum adjacent to the sizing drum and also heated with steam. This pressure and this temperature immediately engage the adhesive.
  • the corrugated "single-sided” cardboard thus formed then passes through a station known as "double-sided gluer" which deposits glue on the other ridges of the grooves, now visible. About a third of the water in this glue binds with the solid materials to form the adhesive, the other two thirds forming "free” water which increases the humidity of the paper at this stage.
  • the "single-sided” cardboard thus glued then enters a so-called “double-sided” station where it is applied either against the second cover paper or against the second intermediate "single-sided” cardboard, itself applied against the cover sheet.
  • the role of this "double-sided” station is therefore to put and maintain the layers in contact while providing them with the heat necessary for the glue to burst and for the evacuation of moisture, to advance this layer of continue removing moisture while keeping the cardboard flat while cooling.
  • the "double-sided" station generally consists of a heating section and a traction section also called a cooling section.
  • this first section has between 18 and 24 heating tables distributed between three or four groups, each table having a transverse length, that is to say perpendicular to the passage of the corrugated board in formation, slightly greater than the useful width of the corrugator and a width of approximately 50 cm. These tables are supplied with steam on each of the groups.
  • the following traction section includes a lower belt driven in synchronism with the upper belt, these two belts sandwiching the corrugated cardboard to frictionally pull it out of the heating section.
  • the upper mat must almost be made of felt to obtain a sufficient friction force between this upper mat and the corrugated cardboard.
  • a mesh carpet which has the advantage of letting the air loaded with water, creates a pressure uniformly distributed on the corrugated cardboard, it does not however create, between the carpet and the corrugated cardboard, sufficient adhesion force for the traction effect.
  • this adhesive force is generally useful for driving corrugated cardboard.
  • the large length of all the heating tables creates a braking force if important that all the adhesion forces between the upper and lower mat and between the upper mat and the corrugated board are necessary for the drive.
  • Patent US-A-3,217,425 proposes, for a "double-sided" station, an assembly device without a heating table, but comprising a lower belt bearing on support rollers, an upper belt passing under pressure rollers as well as under upper nozzles blowing hot air onto the corrugated cardboard being formed, this air being immediately sucked into a vacuum box.
  • this device given the excessively high efficiency of this device with regard to heating and drying, at the outlet the corrugated cardboard tends to curl quickly depending on the excess or insufficiency, at the input, of the humidity of the cardboard " single-sided "and / or various layers.
  • stabilizing this feedback loop is very difficult to establish, with the secondary risk of overheating the adhesives while the layers are not yet assembled.
  • the object of the present invention is therefore to produce an assembly device for a station "double-sided” ensuring that the layers are kept in contact with each other and that is firm but without crushing, heating and drying of the corrugated board in formation correctly dosed for setting the adhesive, as well as sufficient cooling, so that the outgoing corrugated board is flat in both longitudinal and transverse directions.
  • the assembly device according to the invention must also be d 'a better yield than those known to date.
  • the relatively small length of the heating table relative to that of the drive section allows the use of a mesh belt which, in known manner, allows a better performance of the evacuation of moisture and therefore the removal of production speed limits imposed by the accumulation of moisture in the carpet when it is made of felt.
  • the first section consists essentially of a single horizontal heating table 250, lower, that is to say located below the passage of the strips 20, 30, and surmounted by a blowing box upper 150.
  • This heating table 250 can be a casing made of cast iron, or steel, supplied with steam. Its transverse length is slightly greater than the useful width of the corrugator, that is to say of the machine for producing corrugated cardboard, and its width is approximately 2 m. To avoid its deformation, this table is internally reinforced by ribs and spacers which also form baffles improving the heat exchange between the steam and the box. The upper surface of this table is strictly flat to avoid the accumulation of impurities which could scratch the surface of the outer cover. The dimensions of the single heating table make its machining and assembly possible.
  • the function of the upper blowing box 150 is to eject air downwards, that is to say on the upper face of the "single-sided" layer 20 to press the corrugated cardboard 10, in formation, uniformly against the heating table 250.
  • the heating section comprises a series of identical upper nozzles 120, transverse, that is to say extending perpendicular to the direction of passage of the layers 20, 30 and at least over the entire width useful of the corrugator, parallel to each other and arranged one after the other in said direction of passage.
  • the heating section also comprises a series of lower nozzles 220 which are symmetrical and respectively in correspondence with the upper nozzles 120. All these nozzles 120, 220 have a generally oblique parallelepiped shape, that is to say, if we consider the upper nozzles 120, that they are higher on the lateral side through which the air arrives.
  • the lower base of these upper nozzles 120 also has a frustoconical shape oriented downwards, which, due to the resulting reduction in the air flow section, slightly increases the speed of the outgoing air.
  • the upper nozzles 120 are contained in an upper suction box 130 while the lower nozzles 220 are contained in a lower box 230.
  • the hot and dry air arrives from a duct 50 to be distributed by a series of lower supply pipes 52 in the corresponding lower nozzles 220 and by a series of supply pipes.
  • upper supply 54 in the upper nozzles 120 This hot air is therefore projected from above against the upper face of the "single-sided" layer 20 and from below against the lower face of the covering layer 30, before being sucked respectively upwards by the upper box 130 and downwards by the lower box 230.
  • These two boxes 130, 230 are connected, by conduits 62, respectively 64, to an outlet 60 in the direction of a single pump not shown , creating sufficient depression in these boxes.
  • the upper box 130 extends to the right, that is to say downstream, beyond the series of upper nozzles 120, this extension constituting in fact the part top of the third section called "drive and cooling".
  • the lower box 230 also extends to the right beyond the series of lower nozzles 220.
  • the interior of these straight parts of boxes 130, 230 also being under vacuum caused by the outlet suction pump, a fresh air flows through the horizontal gap left at the level of the carton 10, between these two boxes and escapes through the conduit 60.
  • the driving of the strips 20, 30, and therefore of the corrugated cardboard 10 in formation is obtained by means of an upper mat 100 and a lower mat 200 movable in synchronism and without end.
  • the upper belt 100 passes first between this blowing box 150 and the heating table 250, then in the second section called “drying” under the upper nozzles 120 and also under first pressure rollers 115 each located between two parallel upper nozzles 120 and parallel thereto.
  • the upper belt 100 then continues in the third section called “drive and cooling” under a series of other pressure rollers 110 parallel to each other and juxtaposed one after the other in the direction of passage of the carton 10 in training. All these rollers 110, 115 are transverse to the passage of the corrugated cardboard 10.
  • the upper belt 100 rotates upward around a drum 105 to be taken up by a first upper pair of rollers 107a for placing under tension and back, supported by a second upper pair of rollers 107b located substantially in the middle of the device and by an upper guide roller 108 located substantially above the blower box 150, towards the inlet drum 106.
  • the lower belt 200 leaves an input drum 206 located downstream of the heating table 250 and enters directly into the second section. There, the carpet 200 passes over the lower nozzles 220 and also over the transverse support rollers 215, mutually parallel and each interposed between two consecutive lower nozzles 220. This mat 200 then continues in the third section called "drive and cooling" over a series of support rollers 210 facing the series of pressure rollers 110 described above.
  • the lower belt 200 turns down around a lower drive drum 205 to be taken up by a lower pair of tensioning rollers 207, before being directed first backward on a lower guide roller 208, then return to the input roller 206.
  • the "single-sided" layer 20 and the “cover” layer 30 which arrive from a previous station called “double-sided gluing machine", penetrate into the first section where the blowing box 150 applies the layer 20 against layer 30 and this one against the heating table 250 causing the bursting and setting of the glue.
  • the corrugated cardboard 10 thus formed, but still damp, is sandwiched at the entrance to the second station between the upper belt 100, which is pressed down by the pressure rollers 115 then 110, and the lower belt 200 maintained in place by the support rollers 215 and 210 successively.
  • the useful drive length which moreover corresponds to the length of the upper face of the lower belt 200, can be reduced to dimensions of far below those in progress to date.
  • the belts 100, 200 are formed of mesh, the air ejected from the nozzles easily passes through it. This air, once overloaded with moisture, is immediately taken up by the suction box 130, respectively 230. It should be noted that the useful suction section at the level of the corrugated board 10 is formed by the spaces between the nozzles minus the section apparent from the rollers 115 or 215 which is quite weak from an aerodynamic point of view.
  • the hot air used for heating / drying can be replaced by IR, microwave, UV, electron jet, etc. Combinations of such different systems are also possible.
  • the heating systems also make it possible to heat in a differentiated manner in the transverse direction of the width to take account of possible transverse variations in humidity being in the form of bands oriented in the direction of passage of the various layers.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
EP91116910A 1990-11-14 1991-10-04 Verbindungsvorrichtung für eine Wellpappenmaschine Expired - Lifetime EP0485731B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH3617/90 1990-11-14
CH3617/90A CH684688A5 (fr) 1990-11-14 1990-11-14 Dispositif d'assemblage pour élément en bande composé de couches superposées et encollées pour une machine de production de carton ondulé.

Publications (2)

Publication Number Publication Date
EP0485731A1 true EP0485731A1 (de) 1992-05-20
EP0485731B1 EP0485731B1 (de) 1994-08-03

Family

ID=4259831

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91116910A Expired - Lifetime EP0485731B1 (de) 1990-11-14 1991-10-04 Verbindungsvorrichtung für eine Wellpappenmaschine

Country Status (10)

Country Link
US (1) US5181330A (de)
EP (1) EP0485731B1 (de)
JP (1) JPH0767773B2 (de)
KR (1) KR950002106B1 (de)
AT (1) ATE109400T1 (de)
CA (1) CA2055403C (de)
CH (1) CH684688A5 (de)
DE (1) DE69103249T2 (de)
DK (1) DK0485731T3 (de)
ES (1) ES2059011T3 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0826486A2 (de) * 1996-08-29 1998-03-04 Marquip, Inc. Heizanlage für die Oberfläche einer Überschicht in einer Vorrichtung zur Herstellung von Wellpappen

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5456783A (en) * 1993-05-06 1995-10-10 Interfic Developments Incorporated Apparatus and method for enhancing heating uniformity for setting adhesive in corrugated paperboard manufacturing
US5526739A (en) * 1993-09-22 1996-06-18 Corrugated Gear & Services Inc. Apparatus for applying variable pressure to a surface
US5611267A (en) * 1993-09-22 1997-03-18 Corrugated Gear & Services, Inc. Apparatus and method for applying variable pressure to a surface in corrugated paperboard manufacturing
US5444922A (en) * 1994-09-08 1995-08-29 George Koch Sons, Inc. Corrugated product dryer
US5614052A (en) * 1994-12-21 1997-03-25 Gencorp Inc. Vacuum retention gasket splicing
US5789078A (en) * 1996-09-13 1998-08-04 Owens-Corning Fiberglas Technology, Inc. Reinforcement mat
US5837974A (en) * 1996-10-16 1998-11-17 Interfic, Inc. Corrugated paperboard manufacturing apparatus with board profile monitoring and related methods
US5788803A (en) * 1996-10-16 1998-08-04 Interfic, Inc. Corrugated paperboard manufacturing apparatus with controllable preheating
US5847362A (en) * 1996-10-16 1998-12-08 Interfic, Inc. Corrugated paperboard manufacturing apparatus providing controllable heat and related methods
US5902502A (en) * 1996-10-16 1999-05-11 Interfic, Inc. Corrugated paperboard manufacturing apparatus and related methods
US5732622A (en) * 1997-01-24 1998-03-31 Corrugated Gear And Services Machine for manugacturing corrugated board
US6110095A (en) * 1997-04-18 2000-08-29 United Container Machinery Inc. Apparatus for heating corrugated paperboard
US6050316A (en) * 1997-04-18 2000-04-18 United Container Machinery, Inc. Single facer preheater
US6155320A (en) * 1997-04-24 2000-12-05 United Container Machinery, Inc. Method and apparatus for injecting steam at a single facer bonding nip
US6311377B1 (en) 1998-04-28 2001-11-06 Owens Corning Fiberglass Technology, Inc. Apparatus and method for spreading fibrous tows into linear arrays of generally uniform density and products made thereby
TWM305176U (en) * 2006-08-07 2007-01-21 Guang-Shiung Wu Water evaporating mechanism of dual-surface laminating machine for corrugated boards
US8061055B2 (en) * 2007-05-07 2011-11-22 Megtec Systems, Inc. Step air foil web stabilizer
DE102008029432B3 (de) * 2008-06-23 2009-09-17 Prinovis Ltd. & Co. Kg Trocknungsanlage für durchlaufende Warenbahnen in Form von bedruckten und/oder beschichteten Papierbahnen
US9696091B2 (en) * 2012-07-13 2017-07-04 Adc Acquisition Company Superimposed zones process heating
US9952160B2 (en) 2014-04-04 2018-04-24 Packaging Corporation Of America System and method for determining an impact of manufacturing processes on the caliper of a sheet material
JP6376084B2 (ja) * 2015-09-03 2018-08-22 トヨタ自動車株式会社 乾燥装置

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1504218A (en) * 1923-06-05 1924-08-12 Charles H Crowell Process and machine for making cross-corrugated paperboard
US2039750A (en) * 1934-04-20 1936-05-05 George W Swift Jr Inc Corrugated paperboard machine
FR1401830A (fr) * 1964-07-17 1965-06-04 Samuel M Langston Co Appareil de mesure et d'avancement du carton ondulé
GB1086199A (en) * 1963-11-15 1967-10-04 Huyck Corp A corrugator-combiner belt and method of making same
GB1238259A (de) * 1969-02-28 1971-07-07
CA904159A (en) * 1969-12-10 1972-07-04 Domtar Limited Method and apparatus for producing corrugated board
US4169007A (en) * 1977-10-26 1979-09-25 Flynn Drying System, Inc. Dryer-cooling machine for producing corrugated doubleface corrugated board
US4202723A (en) * 1977-01-10 1980-05-13 Westvaco Corporation Automatically controlled machine for making double-face, polymer plastic coated, corrugated paperboard
EP0077186A2 (de) * 1981-10-09 1983-04-20 Smurfit Corrugated Cases Limited Apparat zum Herstellen von Wellpappe

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2236056A (en) * 1938-02-04 1941-03-25 Pratt Co Henry Apparatus and method of making corrugated board
US3217425A (en) * 1962-09-25 1965-11-16 West Virginia Pulp & Paper Co Corrugator
US3319353A (en) * 1964-03-30 1967-05-16 Niwa Machinery Company Ltd Pressing and drying devices for corrugated board manufacturing equipment
JPS5915066B2 (ja) * 1980-07-22 1984-04-07 アイキ工業株式会社 段ボ−ル紙を製造する方法および装置
DE3400333C2 (de) * 1983-08-19 1986-08-21 Werner H.K. Peters Maschinenfabrik Gmbh, 2000 Hamburg Heizvorrichtung für Wellpappe in einer Wellpappen-Beklebemaschine

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1504218A (en) * 1923-06-05 1924-08-12 Charles H Crowell Process and machine for making cross-corrugated paperboard
US2039750A (en) * 1934-04-20 1936-05-05 George W Swift Jr Inc Corrugated paperboard machine
GB1086199A (en) * 1963-11-15 1967-10-04 Huyck Corp A corrugator-combiner belt and method of making same
FR1401830A (fr) * 1964-07-17 1965-06-04 Samuel M Langston Co Appareil de mesure et d'avancement du carton ondulé
GB1238259A (de) * 1969-02-28 1971-07-07
CA904159A (en) * 1969-12-10 1972-07-04 Domtar Limited Method and apparatus for producing corrugated board
US4202723A (en) * 1977-01-10 1980-05-13 Westvaco Corporation Automatically controlled machine for making double-face, polymer plastic coated, corrugated paperboard
US4169007A (en) * 1977-10-26 1979-09-25 Flynn Drying System, Inc. Dryer-cooling machine for producing corrugated doubleface corrugated board
EP0077186A2 (de) * 1981-10-09 1983-04-20 Smurfit Corrugated Cases Limited Apparat zum Herstellen von Wellpappe

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0826486A2 (de) * 1996-08-29 1998-03-04 Marquip, Inc. Heizanlage für die Oberfläche einer Überschicht in einer Vorrichtung zur Herstellung von Wellpappen
EP0826486A3 (de) * 1996-08-29 1998-03-11 Marquip, Inc. Heizanlage für die Oberfläche einer Überschicht in einer Vorrichtung zur Herstellung von Wellpappen
US5891302A (en) * 1996-08-29 1999-04-06 Marquip, Inc. Heating module for upper web surface in a double backer

Also Published As

Publication number Publication date
CA2055403A1 (en) 1992-05-15
EP0485731B1 (de) 1994-08-03
KR920010079A (ko) 1992-06-26
JPH0767773B2 (ja) 1995-07-26
US5181330A (en) 1993-01-26
CH684688A5 (fr) 1994-11-30
ES2059011T3 (es) 1994-11-01
JPH04284232A (ja) 1992-10-08
KR950002106B1 (ko) 1995-03-13
DE69103249D1 (de) 1994-09-08
ATE109400T1 (de) 1994-08-15
CA2055403C (en) 1995-02-14
DK0485731T3 (da) 1994-12-05
DE69103249T2 (de) 1994-12-15

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