WO2014207159A2 - Appareil et procédé de création de cannelures sur un matériau en feuille - Google Patents

Appareil et procédé de création de cannelures sur un matériau en feuille Download PDF

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Publication number
WO2014207159A2
WO2014207159A2 PCT/EP2014/063617 EP2014063617W WO2014207159A2 WO 2014207159 A2 WO2014207159 A2 WO 2014207159A2 EP 2014063617 W EP2014063617 W EP 2014063617W WO 2014207159 A2 WO2014207159 A2 WO 2014207159A2
Authority
WO
WIPO (PCT)
Prior art keywords
sheet material
members
teeth
side faces
top face
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.)
Ceased
Application number
PCT/EP2014/063617
Other languages
English (en)
Other versions
WO2014207159A3 (fr
Inventor
Karl Kaljura
Paul Hodges
Alfred Vincent SPENCER
Darren Newell
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.)
British American Tobacco Investments Ltd
Original Assignee
British American Tobacco Investments Ltd
British American Tobacco Co Ltd
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 British American Tobacco Investments Ltd, British American Tobacco Co Ltd filed Critical British American Tobacco Investments Ltd
Publication of WO2014207159A2 publication Critical patent/WO2014207159A2/fr
Publication of WO2014207159A3 publication Critical patent/WO2014207159A3/fr
Anticipated expiration legal-status Critical
Ceased 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
    • B31F1/0003—Shaping by bending, folding, twisting, straightening, flattening or rim-rolling; Shaping by bending, folding or rim-rolling combined with joining; Apparatus therefor
    • B31F1/0006—Bending or folding; Folding edges combined with joining; Reinforcing edges during the folding thereof
    • B31F1/0009—Bending or folding; Folding edges combined with joining; Reinforcing edges during the folding thereof of plates, sheets or webs
    • B31F1/0012—Bending or folding; Folding edges combined with joining; Reinforcing edges during the folding thereof of plates, sheets or webs combined with making folding lines
    • 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
    • B31F1/07—Embossing, i.e. producing impressions formed by locally deep-drawing, e.g. using rolls provided with complementary profiles
    • 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
    • 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
    • B31F1/2822—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 involving additional operations
    • 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
    • B31F1/30—Tools secured to endless chains, e.g. toothed belts; combined with uniting the corrugated web to flat webs
    • 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
    • B31F2201/00—Mechanical deformation of paper or cardboard without removing material
    • B31F2201/07—Embossing
    • B31F2201/0707—Embossing by tools working continuously
    • B31F2201/0715—The tools being rollers
    • B31F2201/0723—Characteristics of the rollers
    • B31F2201/0738—Cross sectional profile of the embossments
    • 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
    • B31F2201/00—Mechanical deformation of paper or cardboard without removing material
    • B31F2201/07—Embossing
    • B31F2201/0707—Embossing by tools working continuously
    • B31F2201/0715—The tools being rollers
    • B31F2201/0741—Roller cooperating with a non-even counter roller
    • B31F2201/0743—Roller cooperating with a non-even counter roller having a matching profile
    • 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
    • B31F2201/00—Mechanical deformation of paper or cardboard without removing material
    • B31F2201/07—Embossing
    • B31F2201/0707—Embossing by tools working continuously
    • B31F2201/0754—The tools being other than rollers, e.g. belts or plates
    • 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
    • B31F2201/00—Mechanical deformation of paper or cardboard without removing material
    • B31F2201/07—Embossing
    • B31F2201/0784—Auxiliary operations

Definitions

  • This specification relates to an apparatus and method for corrugating sheet material such as, but not limited to, paper or card.
  • Containers and packaging may be made of paper or card, or other sheet material, which may be folded into the desired shape and held together or in place with adhesive or other securing means. To facilitate the sheet material being folded into the desired shape, or to provide a distinctive appearance or function, it may be desirable to corrugate the sheet material.
  • an apparatus for corrugating a continuous sheet material comprising first and second members having toothed surfaces in meshing engagement such that a planar sheet material may be fed between the first and second surfaces and shaped into a corrugated configuration by, and corresponding to, the meshing teeth, wherein the teeth on the first and second members each comprise a top face and opposing side faces, and edges where the side faces meet the top face.
  • the teeth may be angular, in that the top face and opposing side faces meet at an angle. This provides the advantageous angular corrugated configuration of sheet material, as opposed to a continuous smooth sinuous corrugated configuration.
  • the internal angle between the top face and each of the side faces may be around 120 degrees, and the teeth on the first and second surfaces may be shaped as half of a hexagon in cross-section.
  • At least one of the first and second members may comprise a rotatable roller.
  • At least one of the first and second members may comprise a continuous belt.
  • the first member may be moveable towards and away from the second member to alter the degree of meshing engagement between the toothed surfaces of the first and second members.
  • the surface of at least one of the first and second members may be adapted to reduce the friction between said surface and the sheet material being corrugated as the sheet material is deformed between the first and second members.
  • the surface of at least one of the first and second members may include a friction- reducing coating.
  • the surface of at least one of the first and second members may include a plurality of apertures therein and the apparatus may be provided with a source of compressed air fluidly connected to said surface to deliver compressed air through the apertures to create an air cushion between said surface and the sheet material.
  • the surface of at least one of the first and second members may include a plurality of roller elements on the teeth to assist the sheet material to move over the surface of said teeth.
  • the roller elements may be disposed along the tooth edges where the top face meets at least one of the side faces.
  • At least one of the first and second members may be configured to further promote deformation of a sheet material as the sheet material is passed between the first and second surfaces.
  • the surface of at least one of the first and second members may include a plurality of apertures therein and the apparatus is provided with a source of steam fluidly connected said surface to deliver steam through the apertures to the sheet material.
  • the surface of at least one of the first and second members may include a plurality of apertures therein and the apparatus is provided with a vacuum source fluidly connected said surface to apply a vacuum to the air holes to draw the sheet material against said surface.
  • the teeth on at least one of the first and second members may include one or more blades projecting therefrom configured to score a sheet material at intended fold lines as it is fed between the first and second members. The blades may be disposed where the top face meets at least one of the side faces of the respective teeth.
  • the apparatus may further comprise a steam source configured to apply steam to a sheet material before or during passage between the first and second members to promote the deformation of the sheet material to a corrugated formation.
  • a steam source configured to apply steam to a sheet material before or during passage between the first and second members to promote the deformation of the sheet material to a corrugated formation.
  • the apparatus may further comprise a heat source configured to heat a sheet material before or during passage between the first and second members to promote the deformation of the sheet material to a corrugated formation.
  • an apparatus for corrugating a continuous sheet material comprising first and second members having toothed surfaces in meshing engagement such that a planar sheet material may be fed between the first and second surfaces and shaped into a corrugated configuration by, and corresponding to, the meshing teeth, wherein the teeth on the first and second members each comprise a top face and opposing side faces, and edges where the side faces meet the top face, and wherein the surface of at least one of the first and second members is adapted to reduce the friction between said surface and the sheet material being corrugated as the sheet material is deformed between the first and second members.
  • an apparatus for corrugating a continuous sheet material comprising first and second members having toothed surfaces in meshing engagement such that a planar sheet material may be fed between the first and second surfaces and shaped into a corrugated configuration by, and corresponding to, the meshing teeth, wherein the teeth on the first and second members each comprise a top face and opposing side faces, and edges where the side faces meet the top face, and wherein the surface of at least one of the first and second members includes a plurality of apertures therein and the apparatus is provided with a source of steam fluidly connected said surface to deliver steam through the apertures to the sheet material.
  • an apparatus for corrugating a continuous sheet material comprising first and second members having toothed surfaces in meshing engagement such that a planar sheet material may be fed between the first and second surfaces and shaped into a corrugated configuration by, and corresponding to, the meshing teeth, wherein the teeth on the first and second members each comprise a top face and opposing side faces, and edges where the side faces meet the top face, and wherein the surface of at least one of the first and second members includes a plurality of apertures therein and the apparatus is provided with a vacuum source fluidly connected said surface to apply a vacuum to the air holes to draw the sheet material against said surface.
  • an apparatus for corrugating a continuous sheet material comprising first and second members having toothed surfaces in meshing engagement such that a planar sheet material may be fed between the first and second surfaces and shaped into a corrugated configuration by, and corresponding to, the meshing teeth, wherein the teeth on the first and second members each comprise a top face and opposing side faces, and edges where the side faces meet the top face, and wherein the teeth on at least one of the first and second members includes one or more blades projecting therefrom configured to score a sheet material at intended fold lines as it is fed between the first and second members
  • a method of corrugating a continuous sheet material comprising feeding the sheet material between first and second members having toothed surfaces in meshing engagement, wherein the teeth on the first and second members each comprise a top face and opposing side faces, and edges where the side faces meet the top face, and wherein the sheet material is deformed into a corrugated configuration by, and corresponding to, the meshing teeth.
  • the corrugations formed in the sheet material may be shaped as half of a hexagon in cross-section.
  • the method may comprise moving the first member towards and away from the second member to alter the contact force with which the surface of the first member meshes with the surface of the second member.
  • the first and second members may comprise rotatable rollers, and the method may comprise moving the first member towards the second member as each successive tooth on the first member is received within a corresponding space between teeth on the second member as the first and second members rotate in meshing engagement.
  • the method may comprise applying a vacuum through apertures in the surface of one of the first and second members to draw the sheet material against said surface.
  • the method may comprise applying the vacuum to draw the sheet material against said surface prior to deforming the sheet material between the first and second members.
  • the method may comprise providing compressed air through apertures in the surface of one of the first and second members to create an air cushion between said surface and the sheet material to reduce the friction therebetween as the sheet material is being corrugated.
  • the method may comprise providing roller elements on the teeth on the surface of at least one of the first and second members to assist the sheet material to move over the surface of said teeth.
  • the roller elements may be provided where the top face meets at least one of the side faces of the respective teeth.
  • the method may comprise applying steam to the sheet material before or during passage between the first and second members to promote the deformation of the sheet material to a corrugated formation.
  • the steam may be delivered to the sheet material through a plurality of apertures in the surface of at least one of the first and second members.
  • the method may comprise heating the sheet material before or during passage between the first and second member to promote the deformation of the sheet material to a corrugated formation.
  • the method may comprise scoring the sheet material at intended fold lines as it is fed between the first and second members using blades projecting from the teeth on at least one of the first and second members.
  • a method of corrugating a continuous sheet material comprising feeding the sheet material between first and second members having toothed surfaces in meshing engagement, wherein the teeth on the first and second members each comprise a top face and opposing side faces, and edges where the side faces meet the top face, and wherein the sheet material is deformed into a corrugated configuration by, and corresponding to, the meshing teeth, the method comprising applying steam to the sheet material before or during passage between the first and second members to promote the deformation of the sheet material to a corrugated formation and wherein the steam is delivered to the sheet material through a plurality of apertures in the surface of at least one of the first and second members.
  • a method of corrugating a continuous sheet material comprising feeding the sheet material between first and second members having toothed surfaces in meshing engagement, wherein the teeth on the first and second members each comprise a top face and opposing side faces, and edges where the side faces meet the top face, and wherein the sheet material is deformed into a corrugated configuration by, and corresponding to, the meshing teeth, the method comprising applying a vacuum through apertures in the surface of one of the first and second members to draw the sheet material against said surface.
  • a method of corrugating a continuous sheet material comprising feeding the sheet material between first and second members having toothed surfaces in meshing engagement, wherein the teeth on the first and second members each comprise a top face and opposing side faces, and edges where the side faces meet the top face, and wherein the sheet material is deformed into a corrugated configuration by, and corresponding to, the meshing teeth, the method comprising scoring the sheet material at intended fold lines as it is fed between the first and second members using blades projecting from the teeth on at least one of the first and second members.
  • Figure l shows a schematic view of an apparatus according to a first embodiment
  • Figure 2 shows an enlarged view of a corrugating roller of the apparatus in Figure l
  • Figure 3 shows a schematic view of an apparatus according to a second embodiment
  • Figure 4 shows a schematic view of an apparatus according to a third embodiment
  • Figure 5 shows a schematic view of an apparatus according to a fourth embodiment
  • Figure 6 shows a schematic view of an apparatus according to a fifth embodiment
  • Figure 7 shows a schematic view of an apparatus according to a sixth embodiment
  • Figure 8 shows an enlarged view of a portion of a corrugating roller according to a seventh embodiment
  • Figure 9 shows an enlarged view of a portion of a corrugating roller according to an eighth embodiment
  • Figure 10 shows an enlarged view of a portion of a corrugating roller according to a ninth embodiment
  • Figure 11 shows an enlarged view of a portion of a corrugating roller according to a tenth embodiment
  • Figure 12 shows an enlarged view of a portion of a corrugating roller according to an eleventh embodiment
  • Figure 13 shows an enlarged view of a portion of a corrugating roller according to a twelfth embodiment
  • Figure 14 shows an enlarged view of a portion of a corrugating roller according to a thirteenth embodiment.
  • FIG. 1 there is shown a first embodiment of an apparatus 10 for corrugating sheet material such as paper or card, which comprises first and second corrugating rollers 11, 12, each having protruding teeth 13 around their periphery.
  • the corrugating rollers 11, 12 are positioned adjacent each other such that their respective teeth 13 mesh, and the corrugating rollers 11, 12 are rotatable in opposite directions, as shown by arrows A, about respective axes 18, 19.
  • a flat sheet of board or paper S is fed between the meshing teeth 13, as shown by arrow B, and is pressed into a corrugated form.
  • the teeth 13 of the corrugating rollers 13 are advantageously configured to create an angular corrugation to the sheet S as it is pressed between them.
  • An enlarged view of a section of one of the corrugation rollers 11/12 is shown in Figure 2, showing the teeth 13 in more detail.
  • Each tooth 13 is shaped with an angular profile, and comprises a top land 14, opposite side faces 15, and a bottom land 16 either side of the tooth 13 which corresponds to the root circle 17 of the roller 11, 12.
  • An angular edge is formed where the side faces 15 meet the top land 14 and the bottom land 16 to provide the desired angular corrugation.
  • the apparatus is advantageously configured to provide a generally hexagonal-profile corrugation and so the angle ⁇ between the top land 14 and the side faces 15 of each tooth is 120 0 and the angle ⁇ between the bottom land 16 and the side faces is 120 0 .
  • An apparatus 20 according to a second embodiment is shown in Figure 3 and is similar to the apparatus in Figures 1 and 2, and like features retain the same reference numerals.
  • One difference between the apparatus of the second embodiment is that the first corrugation roller 11 is moveable towards and away from the second corrugation roller 12 as the first corrugation roller 11 rotates, as shown by arrow F, and the dotted image of the first corrugation roller 11, in Figure 3.
  • first corrugation roller being mounted on a moveable chassis which is moveable towards and away from the second corrugation roller by appropriate means, such as a piston or an eccentric cam acting on the spring-biased chassis.
  • the motion of the first corrugation roller 11 towards and away from the second corrugation roller 12 is advantageously a linear reciprocating movement such that the rotational axes 18, 19 of the first and second corrugation rollers 11, 12 remain parallel, but the distance between the axes 18, 19 varies. This results in the first corrugation roller 11 intermittently exerting an increased force on the sheet S as it passes between the rollers 11, 12, improving the corrugated pattern being permanently imparted to the sheet S.
  • the first corrugation roller 11 may not move much, or at all, but may be configured so that it is intermittently pressed into engagement with the second corrugation roller 12.
  • the corrugation rollers may continuously be pressed together and the force with which they are pressed together may be intermittently increased and decreased as the rollers 11, 12 rotate.
  • the movement/force application can be timed such that a force in a direction towards the second corrugation roller 12 occurs when each tooth 13 on the first roller 11 is located squarely in the bottom land 16 of the second roller 12.
  • the movement or increased force advantageously occurs as each tooth 13 of the first roller 11 locates in the respective bottom land 16 of the second roller.
  • An apparatus 30 of a third embodiment is shown in Figure 4 and comprises first and second corrugation members.
  • the first corrugation member is a roller 11 as with the first and second embodiments, but instead of a second corrugation roller 12, the second corrugation member comprises a corrugation belt 31 which rotates over belt rollers 32, 33.
  • the corrugation belt 31 is itself corrugated in a semi -hexagonal configuration and the corrugations mesh with the teeth 13 of the first corrugation roller 11.
  • the first roller is shown in Figure 4 as meshing with the corrugation belt 31 mid-way between the two belt rollers 32, 33, although the invention is not limited to this configuration and instead, the first roller may mesh with the corrugation belt 31 at any point between the belt rollers 32, 33, or even in line with one of the belt rollers 32, 33.
  • the flat sheet S is fed between the first corrugation roller 11 and the corrugation belt 31 and is deformed between the teeth 13 of the first roller 11 and the corrugation belt 31 into a corrugated sheet C.
  • the corrugation belt 31 may pass over a solid flat surface between the belt rollers 32, 33, such as a plate, so that the first roller 11 has a surface to press against to ensure the corrugations are imparted to the sheet S, and so that the belt 31 doesn't simply deflect away from the first roller 11.
  • FIG. 5 An apparatus 40 of a fourth embodiment is shown in Figure 5 and is similar to that of the third embodiment, and like features retain the same reference numerals.
  • one difference of the apparatus of the fourth embodiment is that, as well as being rotatable, the first corrugation roller 11 is moveable toward and away from the corrugation belt, shown by arrow F and the dotted image of the first corrugation roller 11, in the same manner as the first corrugation roller 11 of the apparatus 20 of the second embodiment, with the same advantageous benefits as described above.
  • An apparatus 50 of a fifth embodiment is shown in Figure 6 and is similar to the apparatus 30 of the third embodiment, and like features retain the same reference numerals.
  • One difference of the fifth embodiment over the third embodiment however, is that the first corrugation roller is replaced with a second corrugation belt 51 which rotates over second belt rollers 52, 53.
  • the second corrugation belt 51 is itself corrugated in a semi-hexagonal configuration and the corrugations mesh with the corrugations of the other, first corrugation belt 31.
  • the flat sheet S is fed between the first and second corrugation belts 31, 51 and is deformed therebetween into a corrugated sheet C.
  • FIG. 7 An apparatus 60 of a sixth embodiment is shown in Figure 7 and is similar to the apparatus 50 of the fifth embodiment, and like features retain the same reference numerals.
  • One difference however, of the sixth embodiment over the fifth embodiment is that the second corrugation belt 51 and belt rollers 52, 53 are moveable toward and away from the first corrugation belt 31, shown by arrow F and the dotted image of the second corrugation belt 51 and belt rollers 52, 53, in the same manner as the first corrugation roller 11 described previously.
  • the mechanism of the second corrugation rollers 52, 53 and corrugation belt 51 may be mounted on a single moveable chassis which may include means to reciprocate the chassis toward and away from the first corrugation belt 31 such as those described above, for example hydraulic/pneumatic pistons or being spring biased in one direction and acted upon by a rotating eccentric cam.
  • embodiments may include friction- reducing means on one or both of the surfaces of the corrugation rollers 11, 12 or corrugation belts 31, 51.
  • Figure 8 shows an enlarged view of a corrugation roller 71 of an apparatus 70 of a seventh embodiment, which includes a first friction-reducing means.
  • the apparatus 70 of the seventh embodiment is generally similar to that of the first embodiment and comprises first and second meshing corrugation rollers (only a portion of the first corrugation roller 71 is shown) between which planar sheet material S is fed and deformed into a corrugated form.
  • outer surface is provided with a low- friction coating 72.
  • Such coating may be, for example, PTFE. This reduced friction coating encourages the sheet material to slide over the teeth 13 to deform between the teeth of the corrugation rollers 71 without tearing under the force exerted by the rollers 71 ⁇
  • Figure 9 shows an enlarged view of a corrugation roller 81 of an apparatus 80 of an eighth embodiment, which is generally similar to that of the first embodiment and comprises first and second meshing corrugation rollers (only a portion of the first corrugation roller 81 is shown) between which planar sheet material S is fed and deformed into a corrugated form.
  • the apparatus 80 of the eighth embodiment includes an alternative friction-reducing means comprising small needle rollers along the edges of the teeth 13 between the top land 14 and each side face 15 of each tooth 13. As a planar sheet material S is fed between the corrugation rollers 81 and deformed therebetween, it is able to roll over the needle rollers 82 on the teeth to avoid tearing.
  • corrugation roller 81 shown in Figure 9 is not drawn to scale and may be wider than shown to accommodate wider sheet material S. Also, it may be advantageous for sheet material processed using such corrugation rollers 81 not to extend right to the very edges of the corrugation rollers (i.e. to be narrower than the width of the corrugation rollers) to avoid damage by the edge portions of the teeth 13 where the needle rollers 82 end.
  • needle rollers 82 only at the edges between the top land 14 and side faces 15 of the teeth 13, in an alterative variation of this embodiment (not shown), needle rollers may also be provided where the bottom lands 16 meet the side faces 15 of each tooth 13.
  • Figure 10 shows an enlarged view of a corrugation roller 91 of an apparatus 90 of a ninth embodiment, which is generally similar to that of the first embodiment and comprises first and second meshing corrugation rollers (only a portion of the first corrugation roller 91 is shown) between which planar sheet material S is fed and deformed into a corrugated form.
  • the apparatus 90 of the ninth embodiment includes an alternative friction-reducing means comprising an air-cushion generating means.
  • the corrugation roller 91 is hollow and includes a plurality of apertures 92 across its outer surface. Its interior is fluidly coupled to a source of compressed air or gas P, so that air is forced out of the apertures 92 across the entire surface of the corrugation roller 91.
  • Figure 11 shows an enlarged view of a corrugation roller 101 of an apparatus 100 of a tenth embodiment, which is generally similar to that of the first embodiment and comprises first and second meshing corrugation rollers (only a portion of the first corrugation roller 101 is shown) between which planar sheet material S is fed and deformed into a corrugated form.
  • the apparatus 100 of the tenth embodiment includes a vacuum-generating means.
  • the corrugation roller 101 is hollow and it includes a plurality of apertures 102 across its outer surface.
  • the sheet material S encounters the vacuum corrugation roller 101 first to enable the sheet to be drawn against the vacuum roller 101 before the other meshing corrugation roller exerts a corrugating force on the material sheet S by the meshing teeth 13.
  • This may be achieved, for example, by combining this embodiment with a reciprocating corrugating roller, as with the apparatus 20 of the second embodiment, which moves towards and away from the vacuum-generating corrugating roller 101 so the sheet material is able to be drawn against the surface the vacuum corrugating roller 101 before the reciprocating corrugating roller moves down to mesh against it.
  • the sheet material may be fed to the meshing corrugating rollers such that it encounters the surface of the vacuum-generating roller 101 prior being fed between the rollers, rather than being fed directly into the nip of the meshing corrugating rollers.
  • Figure 12 shows an enlarged view of a corrugation roller 111 of an apparatus 110 of an eleventh embodiment, which is generally similar to that of the first embodiment and comprises first and second meshing corrugation rollers (only a portion of the first corrugation roller 111 is shown) between which planar sheet material S is fed and deformed into a corrugated form.
  • the apparatus 110 of the eleventh embodiment includes a plurality of scoring blades 112 (not drawn to scale) disposed along the edges of the teeth 13 between the top land 14 and the side faces 15.
  • blades 112 act to create a shallow score line in the sheet material S as it is deformed between the corrugation rollers which results in sharper folds in the resulting corrugated sheet C, and weakens the sheet material at the folds so that the resulting corrugated sheet remains in the desired folded configuration and the folds are less prone to flattening out.
  • the blades 112 may be continuous elongate blades across the entire width of each tooth 13, or may comprise a plurality of blades along each tooth edge.
  • the blades 112 may also be spring loaded within the teeth 13 so that they retract into the teeth if acted upon by a pre-determined pressure to avoid scoring the sheet material S too deeply or entirely therethrough.
  • Figure 13 shows an enlarged view of a corrugation roller 121 of an apparatus 120 of a twelfth embodiment, which is generally similar to that of the first embodiment and comprises first and second meshing corrugation rollers (only a portion of the first corrugation roller 121 is shown) between which planar sheet material S is fed and deformed into a corrugated form.
  • the apparatus 120 of the twelfth embodiment includes a steam-generating means.
  • the corrugation roller 121 is hollow and it includes a plurality of apertures 122 across its outer surface. Its interior is fluidly coupled to a steam source H, so that steam is ejected through the apertures 122 across the surface of the corrugation roller 121.
  • the steam on the sheet material S causes the material to soften and therefore makes it easier for the sheet material S to deform against the surface of the corrugation roller 121 over and between the teeth 13 with less stress being exerted on the sheet material S reducing the likelihood of damage or tearing to the sheet material S.
  • one or both corrugation rollers may include steam generating means as described above.
  • the rollers 121 may be configured such that steam is only ejected through the apertures 122 over a portion of the outer surface of the roller 121 to avoid excessive steam being ejected where there is no sheet material.
  • steam may be used to soften the sheet material S prior to being deformed into a corrugated form by the corrugation rollers 11, 12, or corrugation belts 31, 51, although rather than the steam being provided from within the corrugation roller(s) as with the twelfth embodiment, it may be provided from an external source, e.g. a steam jet or nozzle directed onto the sheet material S, prior to or during the passage of the sheet material S through the apparatus.
  • an external source e.g. a steam jet or nozzle directed onto the sheet material S, prior to or during the passage of the sheet material S through the apparatus.
  • FIG 14 shows an enlarged view of a corrugation roller 131 of an apparatus 130 of a thirteenth embodiment, which is generally similar to that of the first embodiment and comprises first and second meshing corrugation rollers (only a portion of the first corrugation roller 131 is shown) between which planar sheet material S is fed and deformed into a corrugated form.
  • the apparatus 130 of the thirteenth embodiment includes a heat-generating means in the form of heating elements 132 within the roller 131.
  • the heating elements 312 may be electrically powered heating elements.
  • the heat applied to the sheet material S causes the material to soften and therefore makes it easier for the sheet material S to deform against the surface of the corrugation roller 131 over and between the teeth 13 with less stress being exerted on the sheet material S reducing the likelihood of damage or tearing to the sheet material S.
  • the heat is provided from the corrugation roller 131
  • heat may be provided from an external source to soften the sheet material S prior to being deformed into a corrugated form by the corrugation rollers 11, 12, or corrugation belts 31, 51.
  • the heat may be provided from an external source such as an external heating element or hot air jet directed onto the sheet material S, prior to or during the passage of the sheet material S through the apparatus.
  • an external source such as an external heating element or hot air jet directed onto the sheet material S, prior to or during the passage of the sheet material S through the apparatus.
  • a corrugation belt could be provided with a plurality of apertures through which steam, a vacuum or compressed air is applied, or the belt surface could be provided with knife blades on the teeth edges, low-friction coating, needle rollers or heating elements.
  • the corrugation belt(s) could be made of a porous material instead of, or as well as having a plurality of apertures formed therein.
  • an apparatus may comprise one corrugation roller or belt having apertures through which steam, a vacuum or compressed air is applied, or teeth with knife blades on the tooth edges, low-friction coating, needle rollers or heating elements, and the other of the corrugation roller or belt could be provided with a different one of the above functions.
  • the sheet material to be corrugate may be of a range of different weights, but it is particularly intended to be applicable to sheet material of between 40g/sq. metre - 320g/sq. metre.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)

Abstract

La présente invention concerne un appareil et un procédé destinés à créer des cannelures sur un matériau en feuille et un appareil destiné à créer des cannelures sur un matériau en feuille continu. L'appareil comprend des premier et second éléments possédant des surfaces dentées en prise par emboîtement de sorte qu'un matériau en feuille plan puisse être acheminé entre les première et seconde surfaces et façonné selon une configuration cannelée par les dents à emboîtement et en correspondance avec ces dernières. Les dents des premier et second organes comprennent chacune une face supérieure et des faces latérales opposées, ainsi que des bords où les faces latérales rencontrent la face supérieure. L'invention se rapporte également à un procédé destiné à créer des cannelures sur un matériau en feuille à l'aide d'un tel appareil.
PCT/EP2014/063617 2013-06-28 2014-06-26 Appareil et procédé de création de cannelures sur un matériau en feuille Ceased WO2014207159A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1311638.9A GB2515559A (en) 2013-06-28 2013-06-28 Apparatus and method for corrugating sheet material
GB1311638.9 2013-06-28

Publications (2)

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WO2014207159A2 true WO2014207159A2 (fr) 2014-12-31
WO2014207159A3 WO2014207159A3 (fr) 2015-02-26

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WO (1) WO2014207159A2 (fr)

Cited By (4)

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WO2018216028A1 (fr) * 2017-05-24 2018-11-29 Saint-Gobain Placo Élément de construction ondulé
CN114603929A (zh) * 2022-02-15 2022-06-10 红云红河烟草(集团)有限责任公司 一种卷烟用沟槽（瓦楞）纸成型压辊的齿结构
WO2024105064A1 (fr) * 2022-11-18 2024-05-23 Philip Morris Products S.A. Formation d'un substrat de génération d'aérosol entre des surfaces de transporteur
WO2024175577A1 (fr) * 2023-02-24 2024-08-29 Philip Morris Products S.A. Formation d'ondulations dans un matériau en feuille

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KR102937919B1 (ko) 2020-05-22 2026-03-11 주식회사 엘지에너지솔루션 무지부 프레스부를 포함하는 전극 압연 장치 및 이를 이용한 전극 압연 방법
ES2915905B2 (es) * 2021-12-27 2023-01-31 Asociacion De Investig De La Industria Textil Aitex Equipo de termocompresion para la fabricacion de placas reciclables de panal de abeja y procedimiento empleado con el mismo

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CN114603929A (zh) * 2022-02-15 2022-06-10 红云红河烟草(集团)有限责任公司 一种卷烟用沟槽（瓦楞）纸成型压辊的齿结构
CN114603929B (zh) * 2022-02-15 2024-05-24 红云红河烟草(集团)有限责任公司 一种卷烟用沟槽（瓦楞）纸成型压辊的齿结构
WO2024105064A1 (fr) * 2022-11-18 2024-05-23 Philip Morris Products S.A. Formation d'un substrat de génération d'aérosol entre des surfaces de transporteur
WO2024175577A1 (fr) * 2023-02-24 2024-08-29 Philip Morris Products S.A. Formation d'ondulations dans un matériau en feuille

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GB201311638D0 (en) 2013-08-14
WO2014207159A3 (fr) 2015-02-26
GB2515559A (en) 2014-12-31

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