EP3842200A1 - Rouleau pour etalage de colle sur des bords de panneau - Google Patents

Rouleau pour etalage de colle sur des bords de panneau Download PDF

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Publication number
EP3842200A1
EP3842200A1 EP20214249.3A EP20214249A EP3842200A1 EP 3842200 A1 EP3842200 A1 EP 3842200A1 EP 20214249 A EP20214249 A EP 20214249A EP 3842200 A1 EP3842200 A1 EP 3842200A1
Authority
EP
European Patent Office
Prior art keywords
support cylinder
edge
cladding
cavities
application
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
EP20214249.3A
Other languages
German (de)
English (en)
Other versions
EP3842200B1 (fr
Inventor
Roberto Conconi
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.)
SCM Group SpA
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SCM Group SpA
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Filing date
Publication date
Application filed by SCM Group SpA filed Critical SCM Group SpA
Publication of EP3842200A1 publication Critical patent/EP3842200A1/fr
Application granted granted Critical
Publication of EP3842200B1 publication Critical patent/EP3842200B1/fr
Active legal-status Critical Current
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
    • B27G11/00—Applying adhesives or glue to surfaces of wood to be joined
    • B27G11/02—Glue vessels; Apparatus for warming or heating glue
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27D—WORKING VENEER OR PLYWOOD
    • B27D5/00—Other working of veneer or plywood specially adapted to veneer or plywood
    • B27D5/003—Other working of veneer or plywood specially adapted to veneer or plywood securing a veneer strip to a panel edge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
    • B27G11/00—Applying adhesives or glue to surfaces of wood to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
    • B27G11/00—Applying adhesives or glue to surfaces of wood to be joined
    • B27G11/005—Glue guns, glue sprayers

Definitions

  • the present invention relates to a roller for spreading glue for edge-banding panels.
  • the invention relates to an edge-banding roller of the above type, designed and manufactured in particular to spread a certain quantity of adhesive substance, such as, in particular, glue, on a side edge of a panel for coupling an edge tape, but which can be used for any purpose where the application of glue to surfaces needs to be adjusted.
  • adhesive substance such as, in particular, glue
  • edge-banding systems are used, generally applied to the sides of a sliding surface, on which the panels to be edge-banded are made to slide by means of a suitable edging tape.
  • said edge-banding systems comprise a glue applicator, a roller, on the lateral surface of which said applicator applies the glue to be spread on the edge of the panel as it passes, so that said roller, sliding on the lateral edge of the panel, applies glue, a reel of tape and pressure rollers that make the edge-banding tape adhere to the edge of the wooden panel.
  • the panel is further finished with suitable cutters in order to cut and round off the excess of the edge-banding tape previously applied.
  • This edge-band or tape can be made of different materials such as, for example, plastic, wood, or metal, and has variable sizes according to the size of the side surface of the same panel, on which it has to be applied.
  • rollers for spreading the glue used in these known systems have fixed layouts and are made in one piece, i.e., they require the presence of a single cylindrical element.
  • the lateral surfaces of said rollers for spreading the glue generally have workings or irregular surfaces.
  • rollers have only a minimum and a maximum level of glue that they can hold adhering to the side surface before applying it to the edge of the panel.
  • Another object of the invention is to provide a roller for the edge-banding of panels, which allows the glue to be retained on the roller during the operations of glue spreading on the lateral surface of the panel, preventing the same glue from dripping from the edge-banding roller.
  • Another object of the invention is to provide a roller for the edge-banding of panels, which is highly reliable, relatively simple to manufacture, and at competitive costs if compared to the prior art.
  • an edge-banding roller for spreading an adhesive substance, such as glue and the like, on at least one side surface or edge of a panel, such as a panel made of wood, fiberglass, plastic and the like, wherein said edge-banding roller comprises a support cylinder, rotatable around its own axis of symmetry, and wherein said edge-banding roller is characterized in that it comprises a cladding arranged on the lateral surface of said support cylinder, which presents a plurality of application cavities for keeping said adhesive substance, wherein each application cavity has variable dimensions.
  • said support cylinder may have a plurality of adjustment cavities
  • said cladding may have a cylindrical development and can be rotated with respect to said axis of symmetry of said support cylinder, so that each cavity of said plurality of application cavities is superimposable even partially with a respective adjustment cavity of said plurality of adjustment cavities.
  • said edge-banding roller may be capable of assuming a first operating position, wherein each application cavity of said plurality of application cavity is superimposed to a respective adjustment cavity of said plurality of adjustment cavities, and a second operating position, wherein each application cavity of said plurality of application cavities is partially overlapped to said respective adjustment cavity of said plurality of adjustment cavities.
  • said adjustment cavities may have a shape adapted to make any residues of glue removable by a subsequent rotational movement of said cladding equipped with application cavities, and said roller may comprise a plurality of extensions capable of cleaning said adjustment cavities of said underlying support cylinder.
  • each adjustment cavity of said plurality of adjustment cavities may have a substantially elliptical or polygonal section along a line of section A-A perpendicular to said axis of symmetry
  • each application cavity of said plurality of application cavities may have a section substantially elliptical or polygonal along said section line A-A perpendicular to said axis of symmetry.
  • said edge-banding roller may comprise a rotation shaft, coupled to said support cylinder, for the rotation of said support cylinder, and a housing arranged between said support cylinder and said cladding, in which a tool can be inserted to vary the relative position of said cladding with respect to said support cylinder.
  • said support cylinder may be made of metallic material and is coupled to heating means, so that, when said support cylinder is heated up to a predetermined temperature, each application cavity of said cladding is expanded, varying its size.
  • said edge-banding roller may further comprise a first conical element and a second conical element opposite to said first conical element, wherein said first and second conical elements are made of a non-deformable material with respect to said support cylinder and said cladding, and they are arranged inside said support cylinder, such that the tops of each of said first and second conical elements are arranged facing each other.
  • said first and second conical elements are relatively movable, so as to move close and move away their tops within of said supporting cylinder, so as to elastically deform said support cylinder and said cladding, so that when said first and second conical elements are at a first distance between them, they exert a pressure on the walls of said support cylinder, causing a widening of said application cavities of said cladding, and when said first and second conical elements are at a second distance between them, wherein said second distance is greater than said first distance, said support cylinder and said cladding return to the initial dimensions, so that also each application cavity of said cladding returns to the initial dimension.
  • said cladding may be interchangeable.
  • an edge-banding roller according to the present invention is shown, indicated as a whole with the reference letter R, which substantially comprises a support cylinder 1, rotatable around its own axis of symmetry B, and a cylindrical cladding 2 arranged on the lateral surface of said support cylinder 1.
  • the support cylinder 1 develops longitudinally along the symmetrical axis B.
  • the support cylinder 1 is able to rotate around said axis of symmetry B following a typically automatic operation, by means of an appropriate electric motor (not shown in the figures).
  • Said support cylinder 1 can have variable dimensions according to the dimensions of the surface of the panel on which it is necessary to apply the adhesive substance such as, in particular, glue.
  • Said support cylinder 1 can be made, for example, of metal or similar materials.
  • said support cylinder 1 has a plurality of adjustment cavities 10 for adjusting said glue.
  • each adjustment cavity 10 has a substantially elliptical section along the A-A' section line, perpendicular to said axis of symmetry B, and is obtained along the lateral surface of said support cylinder 1 at a predetermined distance from the next or previous cavity 10.
  • the section of each adjustment cavity 10 can be polygonal.
  • the arrangement of said adjustment cavities 10 forms a first matrix on the lateral surface of the support cylinder 1.
  • each adjustment cavity 10 can be different.
  • the cladding 2 according to the present invention is hollow and cylindrical and is open on the bases.
  • said cladding 2 is rotatably movable, even by a few millimeters, with respect to said support cylinder 1.
  • said cladding 2 is also able to rotate with respect to said axis of symmetry B.
  • said cladding 2 is interchangeable, i.e., it can be replaced, according to the needs, by further claddings 2, having different shapes and sizes.
  • Said cladding 2 has on its external surface a plurality of application cavities 20 for holding said glue, which can be overlapped on said plurality of adjustment cavities 10 of said support cylinder 1.
  • each application cavity 20 has a substantially elliptical section along the section line A-A', perpendicular to said axis of symmetry B, and is obtained along the lateral surface of said cladding 2 at a predetermined distance from the next or previous application cavity 20.
  • the section of each application cavity 20 can be polygonal.
  • the arrangement of said application cavities 20 forms a second matrix on the lateral surface of the cladding 2.
  • each application cavity 20, as well as the distance between said application cavities 20 can be different.
  • figures 1A and 1B show two operating positions as referred to the first embodiment of the edge-banding roller of figure 1 .
  • each application cavity 20 of said second plurality of application cavities 20 is totally or partially overlapped on said respective adjustment cavity 10 of said first plurality of adjustment cavities 10.
  • figure 1A shows a first operating position of said edge-banding roller R, in which each application cavity 20 of said cladding 2 is totally overlapped on each respective adjustment cavity 10 of said support cylinder 1. This allows to hold the maximum amount of glue for said edge-banding roller R.
  • Figure 1B shows a second operating position of said edge-banding roller R, in which each application cavity 20 of said cladding 2 is partially overlapped on each respective adjustment cavity 10 of said support cylinder 1.
  • the quantity of glue retained by said roller R is reduced or less than the relative position between the cylinder 1 and the cladding 2 of figure 1A , or with respect to said first operating position.
  • the glue is applied on the lateral surface of said support cylinder 1.
  • the glue is applied by means of suitable applicators or dispensers (not shown in the figures).
  • said cladding 2 is arranged on the lateral surface of said support cylinder 1, so that said application cavities 20 of said cladding 2 are totally or partially overlapped on said respective adjustment cavities 10 of said support cylinder 1.
  • said edge-banding roller R is used to spread the glue on the lateral surface of the panel to be machined.
  • Figures 2, 2A, and 2B show a second embodiment of the edge-banding roller R according to the present invention.
  • Said second embodiment of said edge-banding roller R further provides, with respect to the first embodiment described above, a rotation shaft 3, coupled to said support cylinder 1, to which an electric motor can be keyed (not shown in the figures) for the rotation of said support cylinder 1, and a housing 4 arranged between said support cylinder 1 and said cladding 2, in which a suitable tool (not shown in the figures) can be inserted to vary the relative position of said cladding 2 with respect to said support cylinder 1.
  • each adjustment cavity 10 of said support cylinder 1 has a substantially triangular section along the perpendicular section line A-A' to said axis of symmetry B. This allows said support cylinder 1 to prevent the glue from stagnating within the cavity of said support cylinder 1.
  • each adjustment cavity 10 can be different, in order to geometrically generate a suitable system that eases the evacuation of the glue because it does not stagnate once the corresponding relative rotations between cladding 2 and cylinder 1 occur.
  • Figures 3, 3A, and 3B show a third embodiment of the edge-banding roller R according to the present invention.
  • said edge-banding roller R always comprises a support cylinder 1 and a cladding 2.
  • the cladding 2 comprises a plurality of application cavities 20, while the support cylinder 1 does not comprise any cavity.
  • Said support cylinder 1 is made of metallic material and is coupled to heating means (not shown in the figures), which can be optionally arranged inside said support cylinder 1.
  • said support cylinder 1 Before applying the glue by means of the appropriate dispenser on the surface of the support cylinder 1, said support cylinder 1 is heated by means of said heating means, so as to also heat said cladding 2.
  • the support cylinder 1 and the cladding 2 undergo a process of thermal expansion, which also causes an expansion of the cavities 20 of said cladding 2.
  • the volume identified by said application cavities 20 increases, thus allowing, following the application of glue by the dispenser, to retain a greater quantity of glue on the surface of the cladding 2.
  • the support cylinder 1 is generally heated up to a temperature of about 200 °C, so that each application cavity 20 of said cladding 2 expands, varying its dimensions by a few tenths of a millimeter.
  • each application cavity 20 expands by a few tenths of a millimeter with respect to its initial dimensions.
  • figure 3B shows a variation from a first width a1 to a second width b1, in which the second width b1 is greater than the first width a1.
  • Figure 4 shows a fourth embodiment of the edge-banding roller R according to the present invention, which always has a support cylinder 1 and a cladding 2 arranged on a lateral surface of said support cylinder 1, and provided with application cavities 20 to retain the glue applied to the surface of said edge-banding roller R.
  • said fourth embodiment of said edge-banding roller R further provides, with respect to the first embodiment described above, a first conical element C1 and a second conical element C2 opposite to said first conical element C1, arranged inside said cylinder of support 1.
  • each conical element C1, C2 is made of a material that is not deformable or non-deformable with respect to said support cylinder 1 and said cladding 2.
  • Each conical element C1 and C2 has a base, arranged at a respective base of said support cylinder 1.
  • the top of said first conical element C1 faces the top of said second conical element C2, not contacting it, and is inside said support cylinder 1 which in the embodiment in question is at least partially hollow.
  • Said conical elements C1 and C2 are moved relative to each other by suitable hydraulic or pneumatic means (not shown in the figures).
  • figure 5 shows a fifth embodiment of the edge-banding roller R according to the present invention, which always has a support cylinder 1, equipped with a plurality of adjustment cavities 10 to adjust the quantity of said glue, and a cladding 2, arranged on a lateral surface of said support cylinder 1, provided with an application cavity 20 to hold the glue applied to the surface of said edge-banding roller R.
  • said adjustment cavities 10 have a shape suitable for ensuring that any glue residues can be removed by a subsequent rotation movement of said cladding 2.
  • said roller R comprises a plurality of extensions 11 suitable for cleaning said adjustment cavities 10 of said support cylinder 1.
  • a first advantage of the present invention is that of providing an edge-banding roller equipped with a movable cladding to improve the spreading of glue on the side surface of the panel to be machined.
  • a further advantage of the present invention is that of providing an edge-banding roller that allows the glue to be retained on the edge-banding roller during the operations of spreading the glue on the side surface of the panel, preventing the same glue from exceeding the edge-banding roller.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Coating Apparatus (AREA)
  • Basic Packing Technique (AREA)
EP20214249.3A 2019-12-23 2020-12-15 Rouleau pour etalage de colle sur des bords de panneau Active EP3842200B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT102019000025198A IT201900025198A1 (it) 2019-12-23 2019-12-23 Rullo per spalmare colla per la bordatura di pannelli.

Publications (2)

Publication Number Publication Date
EP3842200A1 true EP3842200A1 (fr) 2021-06-30
EP3842200B1 EP3842200B1 (fr) 2023-04-12

Family

ID=70228538

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20214249.3A Active EP3842200B1 (fr) 2019-12-23 2020-12-15 Rouleau pour etalage de colle sur des bords de panneau

Country Status (2)

Country Link
EP (1) EP3842200B1 (fr)
IT (1) IT201900025198A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024105103A1 (fr) * 2022-11-17 2024-05-23 Homag Gmbh Dispositif et procédé de revêtement d'une pièce à usiner

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1084469B (de) * 1956-05-09 1960-06-30 Holzwaren Und Tischfabrik G M Maschine zum Auftragen von Klebstoffen, Leimen od. dgl. auf Furniere, Bretter, Papier, Pappe od. dgl.
CN203285029U (zh) * 2013-04-15 2013-11-13 柳媛 可装涂料的滚筒刷
CN205021744U (zh) * 2015-08-17 2016-02-10 芜湖市金建胶合板厂 一种胶合板涂胶滚轮
EP3254815A1 (fr) * 2016-06-06 2017-12-13 UPM Plywood Oy Procédé permettant d'appliquer un adhésif sur au moins un premier placage en bois à l'aide d'un rouleau enducteur et un tel rouleau
CN108189175A (zh) * 2018-03-13 2018-06-22 和县薛氏木制品制造有限公司 一种胶合板上胶辊筒装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1084469B (de) * 1956-05-09 1960-06-30 Holzwaren Und Tischfabrik G M Maschine zum Auftragen von Klebstoffen, Leimen od. dgl. auf Furniere, Bretter, Papier, Pappe od. dgl.
CN203285029U (zh) * 2013-04-15 2013-11-13 柳媛 可装涂料的滚筒刷
CN205021744U (zh) * 2015-08-17 2016-02-10 芜湖市金建胶合板厂 一种胶合板涂胶滚轮
EP3254815A1 (fr) * 2016-06-06 2017-12-13 UPM Plywood Oy Procédé permettant d'appliquer un adhésif sur au moins un premier placage en bois à l'aide d'un rouleau enducteur et un tel rouleau
CN108189175A (zh) * 2018-03-13 2018-06-22 和县薛氏木制品制造有限公司 一种胶合板上胶辊筒装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024105103A1 (fr) * 2022-11-17 2024-05-23 Homag Gmbh Dispositif et procédé de revêtement d'une pièce à usiner

Also Published As

Publication number Publication date
IT201900025198A1 (it) 2021-06-23
EP3842200B1 (fr) 2023-04-12

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