US3669064A - Apparatus for impregnating corrugated cardboard - Google Patents

Apparatus for impregnating corrugated cardboard Download PDF

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Publication number
US3669064A
US3669064A US9581A US3669064DA US3669064A US 3669064 A US3669064 A US 3669064A US 9581 A US9581 A US 9581A US 3669064D A US3669064D A US 3669064DA US 3669064 A US3669064 A US 3669064A
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United States
Prior art keywords
board
flutes
suction
adjacent
frame
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Expired - Lifetime
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US9581A
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English (en)
Inventor
Walther J Hoelzinger
Johann Wenninger
Walter Mayer
Karl Zoegernitz
Hermann Schroetter
Werner Braun
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Officemax Inc
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Boise Cascade Corp
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    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
    • D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
    • D21H23/22—Addition to the formed paper
    • D21H23/50—Spraying or projecting
    • 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
    • B31C—MAKING WOUND ARTICLES, e.g. WOUND TUBES, OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31C11/00—Machinery for winding combined with other machinery
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20—Macromolecular organic compounds
    • D21H17/33—Synthetic macromolecular compounds
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/60—Waxes
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/61—Bitumen
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/63—Inorganic compounds
    • D21H17/66—Salts, e.g. alums
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/71—Mixtures of material ; Pulp or paper comprising several different materials not incorporated by special processes
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
    • D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
    • D21H23/22—Addition to the formed paper
    • D21H23/30—Pretreatment of the paper
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
    • Y10T156/1025—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina to form undulated to corrugated sheet and securing to base with parts of shaped areas out of contact

Definitions

  • ABSTRACT Apparatus for impregnating longitudinally travelling corrugated board having transversely extending flutes, including suction means arranged adjacent one longitudinal edge of the board for establishing a vacuum in the flutes to draw a material, such as an impregnant, therethrough.
  • the invention is characterized by the provision of retaining means for preventing undesirable lateral displacement of the board in the direction of thesuction means.
  • the retaining means comprise longitudinally extending endless belt means responsive to the vacuum established in the flutes for clamping the moving board against lateral displacement without crushing the flutes or causing damage to the board.
  • the endless belt means are provided with longitudinal ribs that extend within corresponding grooves in the rollers upon which the belts are mounted, thereby preventing lateral movement of the belt means-and the board--relative to the rollers.
  • flow control means are provided for accurately controlling the speed and/or extent of longitudinal penetration of the-material through the flutes.
  • SHEET 1 or 6 4 1 6 w 3 m r N.
  • NE 1 INVENTORS Walther J. Hoelzinger Johann Wenninger Walter Mayer Karl Zoegernitz Hermann SchroeHer ATTORNEY Werner Brclun Supply PATENTEUJuu 13 m2 Ho? Wax SHEET 8 0F 6 S p y Fig. /5
  • the preferred location of theimpregnating equipment in an existing corrugator system is the rather limited space between the order cut-off shear (which is operated only periodically at the end of a given order run) and the Triplex means for longitudinally scoring and slitting the board. Since the space between these two units is normally rather limited (on the order of 10 to 12 feet, for example), another critical design limitation is imposed on the impregnating equipment which, together with the high linear velocity of the board, further impairs the impregnation process.
  • the primary object of the present invention is to provide improved apparatus for impregnating corrugated board as it is actually being manufactured on conventional corrugator apparatus, including an impregnating station of minimum length adapted for insertion subsequent to the heating and cooling stations of the corrugator, and preferably between the order cut-off shear means and the Triplex scoring and slitting means.
  • the impregnating station includes impregnant supply means for supplying impregnant material adjacent one longitudinal edge of the board, and suction means adjacent the other longitudinal edge for establishing a vacuum within the flutes to draw the impregnant therethrough.
  • the presentinvention is characterized by the provision of retaining means for preventing the travelling high speed board from being drawn laterally 0E line in the direction of'the suction means by the high vacuum established in the flutes.
  • a more specific object of the invention is to provide vacuum-responsive clamping means for clamping the travelling board to a stationary frame arranged transversely between the impregnant supply and the suction means, use being made of longitudinally extending endless belt means driven at the same or slightly greater linear velocity as the board.
  • the frame is mounted for displacement from the operative impregnating position to an inoperative storage or servicing position when not in use.
  • the belt means are provided with longitudinal ribs that extend within corresponding grooves contained in the rollers.
  • means are provided for accurately adjusting the angles of the roller axes relative to the frame to further prevent the board from becoming laterally displaced from or skewed relative to its longitudinal axis of travel.
  • a further object of the invention is to provide impregnating apparatus including means for laterally adjusting the impregnant supply means and the suction means relative to the longitudinal edges of the corrugated board, thereby to accommodate board of different widths.
  • the impregnant supply means and the suction means include channel members connected for lateral adjustment relative to the frame.
  • the impregnant supply means is combined with a heat exchanger arranged for lateral adjustment adjacent one edge of the board, and the suction means is combined with impregnant separator means arranged for lateral adjustment adjacent the other edge of the board.
  • Another object of the present invention is to provide impregnant supply means including a channel member arranged longitudinally adjacent one edge of the travelling board and including a series of longitudinally spaced first outlets for supplying, via adjustable flow control means, an impregnant of desired consistancy adjacent one end of the flutes, and a subsequent second series of second outlets for supplying to the flutes, via adjustable flow control means, hot air or other agent.
  • the suction means includes a similar channel member arranged at the other longitudinal edge, said suction channel containing a series of suction inlets connected, via adjustable flow regulating means, with a vacuum source.
  • heating means are provided to assure an even distribution of the material throughout the lengths of the flutes.
  • FIG. 1 is a diagrammatic view of the installation of the impregnation apparatus of the present invention in a conventional corrugator system
  • FIG. 1a is a detailed sectional view of a single-wall or double-faced corrugated board embodiment produced by the system of FIG. 1;
  • FIG. 2 is a top plan view of the impregnation station of FIG.
  • FIGS. 3 and 4 are sectional views taken along lines 33 and 44, respectively, of FIG. 2;
  • FIG. 5 is a detailed sectional view taken along line 5-5 of FIG. 4;
  • FIG. 6 is a detailed end view of the roller adjusting means of FIG. 5;
  • FIG. 7 is a detailed top plan view of the impregnating supply and the suction means, with the endless belt retaining means removed for clarity;
  • FIGS. 8-10 are sectional views taken along lines 88, 9-9 and 10-10, respectively, in FIG. 7;
  • FIG, 11 is a detailed plan view of the impregnation sections of the impregnant supply channel means of FIG. 7;
  • FIG. 12 is a detailed view of the impregnant flow regulating means of FIG. 11;
  • FIG. 13 illustrates diagrammatically a second embodiment of the invention wherein the impregnant supply means and the suction means are arranged for movement independent of the retaining means frame;
  • FIG. 14 illustrates diagrammatically a wax curtain impregnant supply modification
  • FIGS. 15 and 16 are modifications of the means for mixing the impregnant material with the transporting air to effect a desired impregnant-to-air ratio.
  • the conventional corrugator apparatus includes a plurality of single facer units 2, 4 and 6 and a roll stand 8 for supplying material to the double facer 10 via the preheater l2 and the glue station 14.
  • the single facers 4 and 6 are temporarily disconnected reserves, and the single facer 2 forms from paper rolls the laminate including the fibrous layer 2a with serpentine layer 2b secured thereto.
  • the roll stand 8 provides the bottom surface layer 8a, all of said layers being pressed together for permanent adhesive connection by the double facer 10.
  • the corrugated board 16 then passes successively through the heating and cooling sections 18 and 20, the intermittently operable order cut-off shear 22, the Triplex longitudinal slitting and scoring means 24, the rotary cut-off means 26, and the severed section take-off means 28.
  • all of the aforementioned corrugator components are driven in synchronism.
  • an impregnating station for impregnating the traverse flutes of the longitudinally travelling horizontally arranged board with a suitable impregnant material affording waterproofing, fireproofing, structural reinforcing, odorizing, insulating, or other characteristic, such as bitumen, paraffin, waterglass, synthetic plastic resin, glue, paraffinbitumenized emulsion, artificial resin wax mixture, liquid synthetic materials, synthetic plastic foaming materials,
  • Impregnant supply means 32 are provided for supplying the impregnant adjacent one longitudinal edge of the board, and suction means including a wax separator 34 and vacuum pump means 36 are provided adjacent the other edge for establishing a vacuum in the transverse flutes to draw the impregnant material completely therethrough.
  • the impregnating station includes a frame 40 having at each end a pin 42 that extends from end plate 43 within a corresponding vertical guide slot in the stationary vertical pillars 44. At its lower end the frame is supported by the cooperation between foot rollers 46 and stationary cam support means 48, the frame being displaceable from the illustrated operative position to an elevated inoperable storage or servicing position illustrated in phantom in FIG. 4.
  • the end plates 43 are rigidly connected by transverse frame cross members 50.
  • journalled at each end in bearing means supported by the frame end plates 43 are a pair of upper rollers 52, 54 that support the longitudinally extending upper endless belt 56 with its lower run adjacent the upper surface of the board 16.
  • lower rollers 60, 62 and 64 journalled at each end in the frame are lower rollers 60, 62 and 64 that support the longitudinally extending lower endless belt 66 with its horizontal upper run adjacent the lower surface of the board.
  • the upper and lower belts have such a width relative to the width of the board that when the vacuum is established within the board flutes as will be described in greater detail below, the upper and lower belts are drawn together by suction to tightly clamp the board 16 therebetween, whereby lateral displacement of the board relative to the frame is positively prevented. As shown in FIGS.
  • the widths of the endless belts are less than the width of the board.
  • the belts are provided on their inner surfaces with continuous longitudinal rib portions 56a and 66a, respectively, that are received in corresponding grooves contained in the rollers, as shown in FIG. 5. While in the illustrated embodiment, the use of V-belt ribs has been described, it will be apparent to those skilled in the art that other retaining means, such as guide rolls, can be used equally well.
  • the lower endless belt 66 is driven by the main corrugator drive means 30 via reduction gearing means 70 and sprocket chain 72, the linear speed of the horizontal upper run of the lower belt 66 being equal to or slightly greater than the linear velocity of the board.
  • the rollers are provided with accurate adjusting means for causing the axes of the rollers to be exactly horizontal and normal to the longitudinal axis of the board, whereby skewing of the board during passage through the impregnating station is avoided. Referring to FIG.
  • a pair of slide members Slidably connected with the frame end plates 43 for lateral adjustment relative to the board are a pair of slide members to which are pivotally connected by pivot pins 92 an impregnant supply channel member 94 and a suction channel member 96, respectively, that extend longitudinally adjacent opposite edges of the board.
  • the channel members are provided with lateral extensions 94a, 96a that are received in corresponding guide slots contained in the forward and rear edges of the frame end plates 43, said lateral extensions serving with the slots to support the channel members for limited pivotal movement in a horizontal plane about their respective pivot axes 92.
  • each of the impregnating supply and suction channel members comprises a plurality of longitudinal sections connected at adjacent ends by male pin and female recess means 106 (FIG. 11), andby rod means 108 extending longitudinally therethrough for bolting the sections together to form arigid assemblage.
  • the impregnant supply channel 94 includes a first series of longitudinally spaced outlets 110 (FIG. 8) to which the impregnant of desiredconsistency is supplied from source 32 via heated conduits 112,
  • the impregnant supply channel includes a second series of longitudinally spaced outlets 130 (FIG. 9) to which hot air is supplied from source 132 via conduits 134, 136, 138, 140 and 142 containing flow regulating means 144, 146, 148, 150 and 152,
  • the suction channel member 96 which defines the suction chamber 96c having a vertical rear wall 96a includes a series of longitudinally spaced inlets 170 FIG. 10) that are connected with the suction means 36 via conduits 174, 176, 178, 180', 182 and 184 containing flow regulator means 186, 188, 190, 19 2, 194 and 196, respectively.
  • Passages 198 and 200 extend longitudinally through the supply and suction channels, respectively, for conducting a heating fluid such as steam through the sections to maintain the impregnating material in a heated condition. In the alternative, the channels may be heated by electrical heating means.
  • the impregnant supplying section 94a has aninlet 116a communicating with the conduit 116 to supply the-impregnant (for example, hot
  • the control member 210 has an operating handle 214 that extends radially through a cover plate 216 to permit manual adjustment of the meterin position of the control member, and control over the quantity of impregnant admitted to the flutes.
  • the impregnant is directed downwardly adjacent the feed lip 218, whereupon the impregnant is mixed with the air supplied via the converging passage 220 to produce, according to one embodiment, an impregnant/air dispersion. This hot air is withdrawn by suction fromthe air box section 94b of the channel member as shown in FIG. 8.
  • the air is withdrawn by suction from the air box chamber 940 ofthe impregnating channel section 94d as shown in FIG. 9.
  • a longitudinally extending seal strip 224 that is biased downwardly into engagement with the upper surface of the board by the spring means 226, the edge of the board being supported by a layer 228 of synthetic plastic material.
  • the seal means may-include means (such as rubber lips or brushes) at the ends of the channel members to further ,seal the ends of the .flutes from atmosphere. As will be apparent from a comparison of FIGS.
  • the suction channel sections are identical to the air section 940 and 94d of the impregnation channel 94.
  • the seal strip comprises a sheet of thin material, such as foil, it will automatically be sucked toward sealing engagement with the surface of the board, whereby the necessity of spring means equivalent to thespring means 226 is avoided.
  • the various flow control devices in the impregnant, hot air and suction conduits, respectively, are adjusted as necessary.
  • the hot air is first introduced in the flutes via conduit 134 and valve means 144, whereupon impregnant is successively introduced into the flutes via heated conduits 156, 158 and 160 as regulated by the adjusting means 162, 164 and 168.
  • the proper successive impregnant charges are introduced into the flutes, and the subsequent application of hot air via the conduits 136, 138, 140 and 142 as controlledby the valves 146, 148, 150 and 152 cooperates with the vacuum means .in drawing the impregnant through the flutes.
  • the air supply may be reduced by appropriate controlof the valve means to slow down the impregnant material as it traverses the board.
  • the first group of regulators 186, 188 and 190 in a fully open condition to effect maximum suction effect, while the successive controllers 192, 194 and 196 may be in a partially throttled condition to produce a reduced suction effect.
  • the adjustment of the flow regulators for the hot air, suction and impregnation conduits would vary in accordance with the specific impregnant utilized, the linear speed, of the board, whether the board is of the single or double wall type, the width of the 7 board, the dimensions of the flutes, and so forth.
  • the apparatus of the present invention affords such accurate control that no more wax is applied to the board than is necessary to effect the desired degree of impregnation.
  • any selected degree of saturation of the board may be achieved.
  • the channel members are connected for pivotal movement about axes 92, whereby an additional control is presented for preventing wandering of the board.
  • conventional edge sensing means may be provided for operating the hydraulic piston cylinder motors 97, 98, and 102 to accurately control the positions and orientations of the channel members relativeto the board.
  • FIG. '13 a modification of the separator apparatus is disclosed in which the channel members are mounted for movement independently of the frame, the impregnant supply channel being combined with heat exchanger means to form a unit 220, and the suction channel member being combined with the separator unit 222. These units may be mounted on rollers for lateral displacement of the board by respectively.
  • the upper and lower endless belts 228; and 230 are carried by the frame 232 for retaining the board against lateral displacement during transport through the impregnating station.
  • FIG. 14 there is shown diagrammatically a modification of the impregnant supply means for supplying adjacent the ends of the flutes a curtain of a wax/air dispersion from inlet 240 through outlet 242 via the flow regulator 244.
  • the vacuum established in the flutes by the suction means causes the wax/air curtain to be drawn into the flutes together with the hot air supplied via passage 248.
  • Thisembodiment offers the advantage that the wax/air curtain may be continuously recycled, and will be drawn through the passage 246 only when the board is present, thereby affording an automatic cutoff.
  • FIG. 15 there is illustrated another modification of the impregnant supply means, which modification is particularly suitable for use in the integral heat exchanger supply means of FIG. 13.
  • the hot wax is supplied to turbulence mixing chamber 260 via the heat exchanger means 262 of the unit 220 via air-less wax spray means including dispersion chamber 264 and the spray nozzle 266.
  • Hot air is supplied to the turbulence mixing chamber in converging jets via conduits 268 and 270 containing control valves 272 and 274, respectively.
  • the wax and hot air is thoroughly mixed owing to the turbulence in the chamber 260, and is drawn by suction from the chamber via outlet passage 276 by the vacuum established in the flutes of the corrugated board 278 travelling continuously thereby.
  • the nozzle means 266 is axially displaceable (by conventional adjusting means, not shown) between the illustrated left-hand position and a right-hand position adjacent the inlet orifice of passage 276.
  • Drain passage 280 is provided in communication with the bottom of the chamber 260 to drain the wax condensate therefrom.
  • the turbulence mixing chamber 286 containing the wax spray nozzle 288 may be concentrically jacketed to define chambers 290, 292 to which a hot fluid (such as steam or air) is supplied to maintain the wax-air mixture at a desirably high temperature.
  • a hot fluid such as steam or air
  • it may be discharged into the chamber via orifices so arranged as to enhance the turbulence mixing effect.
  • the provision of the upper endless belt may be omitted.
  • the coating layer itself serves as an impervious covering that is drawn toward the bottom belt by the vacuum established in the flutes.
  • a temporary coating of a liquid material such as water.
  • the structural strength of the board is increased to such an extent that the impregnated board may be used as an interior or exterior construction material.
  • retaining means for preventing lateral displacement of said board in the direction of said suction means during passage of said board between said supply means and said suction means, said retaining means including 1. a stationary frame extending transversely of the board between said impregnant supply means and said suction means; and
  • clamping means connected with said frame and operable in response to the vacuum established in the flutes for clamping said board against lateral movement relative to said frame, said clamping means including a. longitudinally extending endless belt means adjacent at least one of the upper and lower surfaces of the board, said endless belt means having such a width relative to the width of the board that the belt is sucked by the vacuum in the flutes into clamping engagement with the board; and
  • Apparatus for impregnating longitudinally traveling corrugated board having a serpentine fibrous intermediate layer 5 defining with at least one outer layer a succession of transversely extending flutes comprising a. corrugator apparatus for forming roll paper into corrugated board and for conveying the board at a uniform initial linear velocity; b. stationary impregnant supply means for supplying impregnating material adjacent one longitudinal edge of said board; c. stationary suction means arranged adjacent the other longitudinal edge of said board for establishing a vacuum in said flutes to draw the impregnating material therethrough; d. retaining means for preventing lateral displacement of said board in the direction of said suction means during passage of said board between said supply means and said suction means, said retaining means including 1. a stationary frame extending transversely of the board between said impregnant supply means and said suction means; and
  • clamping means connected with said frame and operable in response to the vacuum established in the flutes for clamping said board against lateral movement relative to said frame, said clamping means including longitudinally extending endless belt means adjacent at least one of the upper and lower surfaces of the board, said endless belt means having such a width relative to the width of the board that the belt is sucked by the vacuum in the flutes into clamping engagement with the board;
  • Apparatus as defined in claim 2 and further including support means for alternately supporting said frame at operative and inoperative positions, respectively, relative to said corrugator conveying means and said scoring and slitting means.
  • Apparatus for impregnating continuously traveling horizontally arranged corrugated board including a serpentine fibrous intermediate layer cooperating with at least one fibrous outer layer todefine a succession of transversely extending flutes, comprising a. stationary impregnant supply means for supplying fluid impregnating material adjacent one longitudinal edge of said board;
  • stationary suction means arranged adjacent the other longitudinal edge of said board for establishing a vacuum in said flutes to draw the impregnating material therethrough;
  • retaining means for preventing lateral displacement of said board in the direction of said suction means during passage of said board between said supply means and said suction means, said retaining means including 1. a stationary frame extending transversely of the board between said impregnant supply means and said suction means; and
  • clamping means Connected with said frame and operable in response to'the vacuum established in the flutes for clamping said board against lateral movement relative to said frame;
  • Apparatus for impregnating continuously traveling horizontally arranged corrugated board including a serpentine fibrous intermediate layer cooperating with at least one fibrous outer layer to define a succession of transversely extending flutes, comprising a. stationary impregnant supply means for supplying fluid impregnating material adjacent one longitudinal edge of said board, said impregnant supply means including 1. a source of fluid impregnating material;
  • a channel member extending longitudinally adjacent said one board edge, said channel member including a first series of longitudinally spaced first outlets arranged for communication with one end of the board flutes;
  • conduit means each containing adjustable flow regulating means for connecting said first outlets with said source, respectively; stationary suction means arranged adjacent the other longitudinal edge of said board for establishing a vacuum in said flutes to draw the impregnating material therethrough; and retaining means for preventing lateral displacement of said board in the direction of said suction means during passage of said board between said supply means and said suction means, said retaining means including 1. a stationary frame extending transversely of the board between said impregnant supply means and said suction means; and
  • clamping means connected with said frame and operable in response to the vacuum established in the flutes for clamping said board againstlateral movement relative to said frame.
  • Apparatus for impregnating longitudinally traveling horizontally arranged corrugated board having a serpentine fibrous intermediate layer defining with at least one planar fibrous outer layer a succession of transversely extending flutes, comprising i a. a frame;
  • stationary suction means connected with said frame for defining a suction chamber having a rear wall portion adjacent and spaced from one longitudinal edge of said board to establish a vacuum in said flutes;
  • stationary impregnant supply means connected with said frame directly opposite said suction means for supplying fluid impregnating material adjacent the other longitudinal edge of said board, whereby saidfluid impregnating material is drawn by suction through the flutes to impregnate at least the internal portion of the board;
  • retaining means for preventing lateral displacement of said board in the direction of said suction means during passage of said board between said supply means and said suction'means, said retaining means comprising longitudinally extending horizontal endless belt means adjacent at least one of the upper and lower surfaces of the board, said endless belt means having such a width relative to the width of the board that the beltis sucked by the vacuum in the flutes into clamping engagement with the board.
  • said endless belt means comprises upper and lower endless belts having longitudinal runs adjacent the upper and lower surfaces of said board, respectively.
  • each of said lateral adjustment means includes guide means slidably connected for lateral movement relative to said frame, and hydraulicpiston-cylinder means for laterally displacing said guide means relative to said frame.
  • each of said impregnating supply means and said suction means includes a channel member extending. longitudinally adjacent opposite edges of the corrugated board, respectively; 7
  • each of said channel members with the corresponding guide member, respectively, for pivotal movement about an axis normal to the plane of the corrugated board.
  • impregnant supply channel member includessubsequent to said first series of outlets a second series of longitudinally spaced second outlets, and further including a plurality of conduit means each containing adjustable flowregulating means for supplying hot air to said second outlets, respectively.
  • suction means includes a channel member extending longitudinally adjacent the opposite edge of the cardboard, said suction channel member including a series of longitudinally spaced inlets arranged for communication with the other end of the board flutes;
  • said suction means including also a vacuum source, and a plurality of conduits each containing adjustable flow regulating means for connecting said channel inlets with said vacuum source.
  • At least one of said channel members comprises a longitudinal series of sections, and means connecting said sections to form a rigid assembly.
  • channel section connecting means includes pin means extending longitudinally from one end of one section, the adjacent end of the next section containing corresponding recess means for receiving said pin means.
  • each of said channel members includes seal means for sealing the ends of the flutes from the ambient atmosphere during passage of said flutes through the impregnation station.
  • impregnant supply means includes means for mixing together controlled quantities of an impregnant and a transporting gaseous fluid.
  • said impregnant supply means includes means defining a turbulence mixing chamber, spray nozzle means for introducing the impregnant into said chamber, and means for introducing hot air into said chamber, said chamber having an outlet adjacent one longitudinal edge of the board for supplying the impregnant/air mixture to the flutes.
  • Apparatus for impregnating longitudinally travelling horizontally arranged corrugated board having a serpentine fibrous intermediate layer cooperating with at least one planar fibrous outer layer to define a succession of transversely extending flutes comprising a. a frame;
  • stationary suction means connected with said frame adjacent one longitudinal edge of said board to establish a vacuum in the flutes opposite thereto, said suction means including a suction channel member defining a longitudinally extending suction chamber partially receiving the adjacent edge portion of said board, said suction chamber having a rear wall portion adjacent and spaced from the adjacent edge extremity of said board;

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  • Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
  • Making Paper Articles (AREA)
  • Laminated Bodies (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
US9581A 1970-02-09 1970-02-09 Apparatus for impregnating corrugated cardboard Expired - Lifetime US3669064A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US958170A 1970-02-09 1970-02-09

Publications (1)

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US3669064A true US3669064A (en) 1972-06-13

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US9581A Expired - Lifetime US3669064A (en) 1970-02-09 1970-02-09 Apparatus for impregnating corrugated cardboard

Country Status (26)

Country Link
US (1) US3669064A (xx)
AT (1) AT310546B (xx)
BE (1) BE758785A (xx)
BG (1) BG17826A3 (xx)
CA (1) CA944552A (xx)
CH (1) CH522787A (xx)
DD (1) DD96528A5 (xx)
DE (1) DE2105297C3 (xx)
DK (1) DK143541C (xx)
ES (1) ES385347A1 (xx)
FI (1) FI53415C (xx)
FR (1) FR2080338A5 (xx)
GB (1) GB1317037A (xx)
HU (1) HU170794B (xx)
IE (1) IE35280B1 (xx)
IL (1) IL35410A (xx)
NL (1) NL7014932A (xx)
NO (1) NO131613C (xx)
OA (1) OA04028A (xx)
PL (1) PL83024B1 (xx)
RO (1) RO62113A (xx)
SE (1) SE369589B (xx)
SU (1) SU384243A3 (xx)
TR (1) TR17007A (xx)
YU (1) YU36270B (xx)
ZA (1) ZA707025B (xx)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3858550A (en) * 1972-01-14 1975-01-07 Gunther Lau Apparatus for impregnating horizontally transported corrugated paperboard
US3896763A (en) * 1972-01-14 1975-07-29 Gunther Lau Impregnating corrugated cardboard
US3908587A (en) * 1972-01-14 1975-09-30 Gunther Lau Apparatus for impregnating corrugated cardboard
US3967581A (en) * 1971-07-06 1976-07-06 Irvin Edward Zirbel Apparatus for applying a coating to a workpiece edge
WO1990007617A1 (en) * 1988-12-29 1990-07-12 Interwell Ab A device for introducing liquid composition into the pipes of corrugated cardboard sheets
US6264743B1 (en) * 1999-10-29 2001-07-24 Nordson Corporation Vacuum assisted overspray controller and method
US6352744B1 (en) 2000-05-31 2002-03-05 Owens Corning Fiberglas Technology, Inc. Vacuum treatment of asphalt coating
US20120152695A1 (en) * 2010-12-17 2012-06-21 Kimberly-Clark Worldwide, Inc. Vacuum roll and method of use
US8939445B2 (en) 2013-05-30 2015-01-27 Kimberly-Clark Worldwide, Inc. Vacuum roll with internal rotary valve
CN105836239A (zh) * 2016-05-23 2016-08-10 佛山市富利包装机械有限公司 一种双面贴合机驱动机构
CN106076742A (zh) * 2016-08-25 2016-11-09 中江德宝地板制造有限公司 封蜡设备
CN107930941A (zh) * 2017-11-13 2018-04-20 蚌埠抒阳自动化设备制造有限公司 一种连续性高效木门喷漆设备
CN116397460A (zh) * 2023-04-03 2023-07-07 上饶市卓然实业有限公司 一种纸板生产用瓦楞纸湿度控制器

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT401480B (de) * 1989-07-06 1996-09-25 Zimmer Johannes Rakelgerät zum auftragen bzw. auftragen und abrakeln bzw. zum dosierten auftragen fliessfähiger oder streichfähiger substanzen

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3967581A (en) * 1971-07-06 1976-07-06 Irvin Edward Zirbel Apparatus for applying a coating to a workpiece edge
US3858550A (en) * 1972-01-14 1975-01-07 Gunther Lau Apparatus for impregnating horizontally transported corrugated paperboard
US3896763A (en) * 1972-01-14 1975-07-29 Gunther Lau Impregnating corrugated cardboard
US3908587A (en) * 1972-01-14 1975-09-30 Gunther Lau Apparatus for impregnating corrugated cardboard
WO1990007617A1 (en) * 1988-12-29 1990-07-12 Interwell Ab A device for introducing liquid composition into the pipes of corrugated cardboard sheets
US5162061A (en) * 1988-12-29 1992-11-10 Sternhamn Nils Ake Device for introducing liquid composition into the pipes formed by flutes of corrugated cardboard sheets
US6264743B1 (en) * 1999-10-29 2001-07-24 Nordson Corporation Vacuum assisted overspray controller and method
US6352744B1 (en) 2000-05-31 2002-03-05 Owens Corning Fiberglas Technology, Inc. Vacuum treatment of asphalt coating
US20120152695A1 (en) * 2010-12-17 2012-06-21 Kimberly-Clark Worldwide, Inc. Vacuum roll and method of use
US8602198B2 (en) * 2010-12-17 2013-12-10 Kimberly-Clark Worldwide, Inc. Vacuum roll and method of use
US8939445B2 (en) 2013-05-30 2015-01-27 Kimberly-Clark Worldwide, Inc. Vacuum roll with internal rotary valve
CN105836239A (zh) * 2016-05-23 2016-08-10 佛山市富利包装机械有限公司 一种双面贴合机驱动机构
CN106076742A (zh) * 2016-08-25 2016-11-09 中江德宝地板制造有限公司 封蜡设备
CN106076742B (zh) * 2016-08-25 2019-01-29 中江德宝木业有限公司 封蜡设备
CN107930941A (zh) * 2017-11-13 2018-04-20 蚌埠抒阳自动化设备制造有限公司 一种连续性高效木门喷漆设备
CN116397460A (zh) * 2023-04-03 2023-07-07 上饶市卓然实业有限公司 一种纸板生产用瓦楞纸湿度控制器

Also Published As

Publication number Publication date
BG17826A3 (bg) 1973-12-25
OA04028A (fr) 1979-09-15
CA944552A (en) 1974-04-02
PL83024B1 (xx) 1975-12-31
SE369589B (xx) 1974-09-09
ES385347A1 (es) 1973-04-16
FI53415C (fi) 1978-05-10
IL35410A (en) 1974-07-31
YU28571A (en) 1980-09-25
DK143541B (da) 1981-09-07
FI53415B (xx) 1978-01-31
SU384243A3 (xx) 1973-05-23
FR2080338A5 (xx) 1971-11-12
DE2105297B2 (de) 1973-08-30
DE2105297C3 (de) 1974-04-11
NO131613C (xx) 1975-06-25
IE35280L (en) 1971-08-09
DE2105297A1 (de) 1971-09-16
IL35410A0 (en) 1970-12-24
BE758785A (fr) 1971-04-16
ZA707025B (en) 1971-07-28
TR17007A (tr) 1974-04-11
YU36270B (en) 1982-06-18
RO62113A (fr) 1977-10-15
CH522787A (de) 1972-06-30
DD96528A5 (xx) 1973-03-20
HU170794B (hu) 1977-09-28
GB1317037A (en) 1973-05-16
NO131613B (xx) 1975-03-17
IE35280B1 (en) 1976-01-07
DK143541C (da) 1982-02-08
AT310546B (de) 1973-10-10
NL7014932A (xx) 1971-08-11

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