EP2335893A1 - Elément de façade plat et son procédé de fabrication - Google Patents

Elément de façade plat et son procédé de fabrication Download PDF

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Publication number
EP2335893A1
EP2335893A1 EP09179866A EP09179866A EP2335893A1 EP 2335893 A1 EP2335893 A1 EP 2335893A1 EP 09179866 A EP09179866 A EP 09179866A EP 09179866 A EP09179866 A EP 09179866A EP 2335893 A1 EP2335893 A1 EP 2335893A1
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EP
European Patent Office
Prior art keywords
casting
groove
region
profile
carrier element
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.)
Withdrawn
Application number
EP09179866A
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German (de)
English (en)
Inventor
Heinz Barth
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.)
insu-fast GmbH
Original Assignee
insu-fast GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by insu-fast GmbH filed Critical insu-fast GmbH
Priority to EP09179866A priority Critical patent/EP2335893A1/fr
Publication of EP2335893A1 publication Critical patent/EP2335893A1/fr
Withdrawn legal-status Critical Current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
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N7/00—After-treatment, e.g. reducing swelling or shrinkage, surfacing; Protecting the edges of boards against access of humidity

Definitions

  • the present invention relates to a facade element or the like surface element, comprising a planar support element, with a front side, a rear side and circumferential end faces, and an edge protection profile, which is arranged on at least one end side of the support element.
  • the present invention relates to a method for producing such a facade element or the like surface element.
  • Such facade elements or surface elements are known from the prior art. They usually serve the shuttering of structures and in particular of external insulation mounted there. Depending on the training as vapor-permeable or diffusion-closed systems, they are ventilated or not ventilated.
  • moisture-sensitive wood fiber boards As support elements different products are used, meanwhile also find moisture-sensitive wood fiber boards as support elements for facades your application. These moisture-sensitive fibreboard panels are only permitted for use as a façade element in outdoor areas if they have certain especially moist resistant coatings. Such coatings are predominantly cover layers, which are fluid-tightly connected to corresponding edge protection profiles on the end faces of the carrier element.
  • edge protection profiles are used in addition to the moisture protection and the mechanical protection of the support elements or surface elements in particular against damage during transport.
  • EP 1 154 090 describes a system in which cover layers form a groove in the region of the end faces, wherein a hardening casting material is filled into this groove for moisture protection reasons.
  • EP 0 382 513 a facade element or a method for its production, in which an edge protection profile is also cast as a hardening casting material on the end face of a support element.
  • an edge protection profile is also cast as a hardening casting material on the end face of a support element.
  • a groove is milled until shortly before the front side of the carrier element, which is then then completely filled with a hardening casting material. After curing, a cut is made along this cast-out groove, so that a carrier element with molded edge protection profile results.
  • Object of the present invention is therefore to develop a surface element of the type mentioned in such a way that it is cheaper and faster to produce. Moreover, the object of the present invention is to provide a method for the production of such a facade element, which allows the cheaper, faster and more economical production.
  • a facade element or similar surface element comprising a planar support member having a front, a back and circumferential end faces, and an edge protection profile, which is arranged on at least one end face of the support member, wherein the edge protection profile has at least two different areas that is, at least one casting area, in which the edge protection profile is cast as a cast profile on a part of the front side, and an adjacent thereto injection molding, in which the edge protection profile is applied as an injection layer on the remaining part of the front page.
  • the object is achieved by a method for producing a facade element or the like surface element of the aforementioned type, wherein the method comprises the steps of: forming at least one groove on the back of the support element with at least one end side legs and a depth such that the front side as a groove bottom one thin-layer carrier element layer and / or a cover layer arranged there remains; Applying a hardening casting material to at least a part of the at least one end side limb in such a way that an injection-molding layer forms on at least one rear-side end side leg region and a cast profile at least on the front side leg region; Separating the two legs of the groove over the groove bottom, so that forms on the at least one end side leg edge protection profile with a casting region and an adjacent thereto injection molding.
  • the essential difference between the casting region or the casting profile formed in this casting region and the injection-molding region and the injection-molding layer formed therein is that the injection-molding layer requires much less material than the casting profile.
  • the injection-molded layer is applied much more superficially to the front side than is the case with the cast layer.
  • the support member penetrates the cast material in the casting area much deeper into the support element, as is the case with the injection molding.
  • injection molding material is applied to at least one end-side leg of the groove in the groove introduced in the carrier element. Whether only one end side leg or both end side legs are acted upon by the casting material depends on whether both parts of the carrier element separated by the groove are to be used later or have an edge protection profile, or if only one side of the carrier element and thus only one end side leg with a Edge protection profile must be formed.
  • the application of the casting material on the one or both end side limbs takes place in such a way that the injection molding layer forms the casting profile in the region of the front side in the other side.
  • the area in which the cast profile is formed is understood to mean the front end face region.
  • a casting profile forms according to the invention if more material is applied in the respective area than is necessary for the formation of an injection-molding layer. It should be noted that here “front” and “back” was not chosen with reference to the subsequent use of the facade element, but with respect to the orientation of the support element during manufacture.
  • the two limbs of the groove are then separated via the groove bottom, so that an edge protection profile with a casting region and an injection molding region adjacent thereto forms on the at least one limb.
  • This separation can be done for example by cutting, but preferably simply by breaking off the other leg.
  • the "unfrozen side" of the plate in this case the front side, is incised in the region of the future fracture edge, for example with a conventional wallpaper knife.
  • the result is a clean break edge, in particular, a post-processing of the most already sanded or the like finished front is no longer necessary.
  • the choice of the incision can be made directly on the shape of the resulting edge protection profile; So whether an edge protection profile with a large, small or no frontal projection etc. should be formed.
  • the facade element can be finished ready in the manner described above very easily and without large tool and especially cutting tool requirements. Above all, it is not necessary anymore Curing the cast material to make a cut in the groove to complete the edge protection profile. This reduces the tool costs and also the cutting waste, which must be disposed of cost-effectively. In addition, of course, compared to the full-surface filling of a groove, as mentioned in the introductory part of the description, reduce the amount of casting material used by up to 90%. Since this casting material has a very high cost share in the finished facade element, the facade element produced by the method according to the invention is economically extremely interesting.
  • a further advantage of the method described lies in the fact that no costly protective measures for the production tool of the facade element, namely the injection molding machine must be made. In particular, it is not necessary to mask off the edges of the carrier element in order to avoid contamination of the adjacent tool when coating the carrier element. The function of such "Schutzabklebung" takes over the part of the carrier element, which is removed after curing of the casting material and in particular broken off. This also saves costs and speeds up the manufacturing process.
  • the casting region merges integrally into the injection molding region, so that an integrally formed edge protection profile is formed which forms a mechanical and / or moisture protection over the entire surface, depending on the material used.
  • injection molding is understood as meaning such a region in which the hardening casting material is applied in a thin layer to the end face of the carrier element.
  • injection molding is understood as meaning such a region in which the hardening casting material is applied in a thin layer to the end face of the carrier element.
  • known from the prior art spraying method but also other methods can be used which allow this thin layer application of the casting material.
  • the cast material can also be rolled up, brushed, etc. Since it is preferable in both areas to one and the same material, a very cost-effective and advantageous in mechanical terms training an edge protection profile is possible.
  • the cast profile in the casting area has a higher mechanical resistance than is the case with the injection molding layer in the injection molding area.
  • the casting area are arranged on the front-side part of the front side and the injection-molding area on the rear-side part of the front side.
  • the production method can also be used in such a way that casting regions form at both corners, ie in the transition region between front side and front side or rear side of the carrier element and only the injection molding layer formed in the intermediate, so the middle part of the front page.
  • the carrier element and the casting material are preferably designed such that the casting material or casting region accumulated in the groove bottom forms a saturation region in which the casting material penetrates and / or is connected to the thin-layer carrier element layer and / or the cover layer arranged there.
  • the casting material penetrates this later "carrier element projection" completely, so that on the one hand in this area a particularly resistant "anti-catastrophic element” forms on the other hand but also a particularly effective moisture protection results.
  • moisture protection or the term "fluid-tight” is understood to mean that the respective element is either completely fluid-tight, ie both liquid-impermeable and vapor-tight, or if this is required, however, it is liquid-tight but permeable.
  • a diffusion-open or a diffusion-closed, ie completely fluid-tight, design is desired.
  • the support element is preferably positioned or coated in such a way that the casting material applied in particular to the end side limbs runs along the end side limb of the groove, collects on the groove bottom and thus forms the casting region.
  • the casting material penetrates slightly into the end face, so that the injection-molded layer is firmly connected to the end face in the injection molding area.
  • the still liquid casting material collects and penetrates more strongly into the end face or the groove bottom formed on the carrier element or go with this one firm connection. This strong connection greatly increases the resilience in this area.
  • the groove bottom can be made of the same material as the carrier element or else of a coating which has been previously applied to the carrier element.
  • the two legs of the groove introduced into the carrier element are preferably broken down over the groove bottom and the hardened cast material accumulated there, so that a cast profile with a breaking edge forms in the casting area.
  • a breaking edge has a strong resistance to mechanical and moisture-related stresses, on the other hand it allows the safe connection of possible sealing and filling compounds due to its rough surfaces. This is particularly relevant when using the facade element in facade systems of relevance.
  • so much casting material is applied that accumulates in the groove bottom, the casting material to a height of 1/3 to 1/10 of the thickness of the support member, measured from the front of the support member.
  • Such a design of the resulting casting profile has been found to be particularly mechanically resistant.
  • the carrier element is coated on the front side with a particularly fluid-tight cover layer, wherein at least part of the cover layer forms a particularly fluid-tight connection with the casting area.
  • a particularly fluid-tight cover layer wherein at least part of the cover layer forms a particularly fluid-tight connection with the casting area.
  • the front side are coated with a thermosetting casting material.
  • This casting material then likewise penetrates superficially into the carrier element, wherein it preferably forms a connection and in particular a fluid-tight connection with the cast profile in the casting region of the groove or with the saturation region formed therein.
  • the surface element is again fluid-tight again liquid-tight or liquid and vapor-tight understood.
  • This cover layer is preferably applied to the front side of the carrier element before the groove is introduced.
  • a saturation region, and in particular a fluid-tight connection then form during the introduction of the casting material into the groove in the region of the front side.
  • the cover layer increases the machining accuracy and allows the formation of a deeper groove, so that the connection between the groove bottom and the casting material accumulated there and the front or the cover layer applied there is more stable and in particular more dense.
  • Such a coating can be applied in one or more steps.
  • a hardening casting material as a coating of the front or the front side and the rear side of the carrier element and then to coat them, for example, with a quartz sand.
  • a groove having a simple rectangular cross-section in which the groove bottom is formed by a thin-layered carrier element layer arranged in particular on the front side and / or a cover layer arranged there, other groove shapes can also be formed in the plate.
  • a groove with a discontinuous, in particular step-step shape of the at least one end side leg of the groove in the overall groove preferably has a larger insertion cross section followed by a smaller casting cross section, the groove bottom of which is formed by the thin layer carrier element layer and / or a cover layer arranged there.
  • the Einbringquerites facilitates the application, in particular spraying the edge protection material, which then enters via the legs of the groove in the casting cross section of the groove.
  • the amount of material to be accumulated there is thus additionally reduced and, moreover, the resulting breaking edge is locally defined more precisely.
  • the at least one inclined end side limb in the casting region can also pass into a differently inclined front side limb which is aligned in particular vertically to the plane of the facade element.
  • Such an inclined leg which is arranged in particular in the injection-molding area, facilitates the application and, in particular, spraying of the casting material and guarantees a smooth running down into the casting area or the casting cross-section.
  • the above grooves with appropriate milling tools or with correspondingly shaped saw blades or a plurality of parallel arranged saw blades with different radius can be introduced.
  • a groove is introduced, which has a widening cross-section, in particular in the casting area from the rear side to the front side of the carrier element. It is particularly advantageous to introduce a groove which forms a widening cross-section in the planned casting area. In this way, a cast profile with a high proportion of casting material is formed in the casting area of the edge protection profile. If, for example, a groove is introduced which has a cross-section widening by 45 ° in the casting region, this results in an edge protection profile in which casting material is arranged in a 45 ° corner region which reliably protects the corner of the surface element from damage.
  • this change in cross section has a pitch angle between 30 ° and 80 °, in particular 45 °.
  • the Fig. 1-4 schematically show an embodiment of the method for producing a facade or surface element in a plan view. Accordingly, in the Fig. 5-8 each in a detail section according to the cut as shown in the Fig. 2-4 is drawn, the manufacturing process shown in cross section.
  • Fig. 1 illustrated support member 4, which consists here for example of a wood fiber board.
  • the carrier element 4 has a rear side 8, which points out of the image plane here.
  • the outer geometry of the carrier element 4 is limited by its circumferential end faces 10.
  • the Carrier element 4 a cutout 50, which may be, for example, a pipe feedthrough in a facade element.
  • a circumferential groove 30 is introduced and milled in particular here. Also on the cutout 50, such a groove 30 is milled.
  • all known from the prior art method for introducing a groove can be applied here.
  • the groove 30 is formed here as a rectangular groove, wherein it has two end side legs 32, 32 'and a groove bottom 34 which is formed here by a front side 6 arranged thin-layer carrier element layer 36.
  • the carrier element 4 has on its front side 6 beyond a cover layer 26, which is sprayed onto the front side 6 here before the introduction of the groove 30 in the carrier element 4.
  • a cover layer 26 may, for example, be a quartz sand layer applied over a PU adhesive layer.
  • the actual “sealing step” takes place by the introduction or spraying of a hardening casting material 40 (see FIG Fig. 2 . 6 and 7 ).
  • a hardening casting material 40 see FIG Fig. 2 . 6 and 7 .
  • an injection molding tool 60 is used, over which the casting material 40 is sprayed onto the one end side limb 32, namely the front side limb facing in the direction of the edge region 28 of the support element 4.
  • other methods can also be used here, provided that it is thus possible to thinly apply the cast material 40 to the front side leg 32.
  • the casting material 40 is preferably applied to the rear end side leg region 48 in such a way that the casting material 40 runs down on the end side leg 32 and accumulates in the groove bottom 34 in the form of a thicker cast material layer 40.
  • casting material 40 Due to the accumulation of the casting material 40 on the groove bottom 34, casting material penetrates more strongly into the thin-layer carrier element layer 36, as a result of which a saturation region is formed 18, in which the casting material has substantially completely penetrated into the thin-film carrier element layer 36.
  • the applied casting material 40 extends in such a way that a cast film 15 is formed in an injection molding area 16 in the rear end side leg area 48 and in a front side leg area 46 of the casting area 14.
  • the thickness d of the casting area 14 filled with the casting material is substantially one third of the total thickness D of the carrier element 4 Fig. 7
  • the casting region 14 comprises not only the region in which the casting material 40 has accumulated on the groove bottom 34, but also the saturation region 18 in which the casting material 40 has penetrated into the thin-layer carrier element layer 36.
  • the two end side limbs 32, 32 ' can be separated from one another via the groove bottom 34.
  • the edge region 28 arranged on the left side is broken off from the resulting finished facade element 2.
  • the result is a facade element 2 with an edge protection profile 12 which has an injection-molded layer 17 in its rear area and a cast profile 15 in its front area.
  • the formerly thin-layer carrier element layer 36 now forms the carrier element projection 20 impregnated with casting material 40.
  • Fig. 9-13 show a further embodiment of a manufacturing method for facade elements also in cross section.
  • two facade or surface elements 2 are produced here in one working process.
  • a groove 30 is again milled into a carrier element 4 at the rear, whose two end side legs 32, 32 'are then subjected to cast material 40 via an injection mold 60.
  • an injection-molded region 16, each with an injection-molding layer 17 forms in the region of the groove bottom 34 and the front end side leg regions 46 of the casting region 14 with a cast profile 15.
  • the casting material 40 partially penetrates into the carrier element 4, wherein extends almost completely to the front 6 of the support element 4 (see in particular Fig. 11 ) and a saturation region 18 is formed.
  • the carrier element 4 is provided on its front side 6 with a cover layer 26 which is likewise applied here via an injection molding tool 60 ", in which case part of the applied cover layer material penetrates into the carrier element 4 that in particular in the region of the groove 30, a fluid-tight connection between the cover layer 26 and the casting material 40 forms (see Fig. 12 ).
  • the two carrier element halves 4, 4 ' are separated from each other, whereby a separation by breaking the connection in the groove 30, namely a breakage of the casting profile 15 and the thick layer 26 takes place.
  • the result is two facade elements 2 which each have an edge protection profile 12 on the end face 10 shown here.
  • this edge protection profile 12 has a thin-layered injection-molded layer 17 and a high-strength cast profile 15, which here is provided with a rough breaking edge 22 which results from the breaking off of the two parts.
  • Fig. 14-16 show a further embodiment of the manufacturing process for facade or surface elements, in which case in contrast to the method described above, not a rectangular groove but a groove 30 is milled with expanding cross-section or in a section widening cross-section.
  • This section lies exactly in the area in which the later casting area 14 is located (see Fig. 15 ).
  • a groove 30 is milled, which is from the height d to the later the casting material 40 on the groove bottom 34, has a widening in the direction of the front 6 cross-section.
  • the shape of the groove 30 thus corresponds here in a "dovetail geometry".
  • edge protection profile 12 After breaking off the edge region 28, such a groove shape results in an edge protection profile 12 having a particularly effective corner protection effect in the front corner region 13. Because a particularly high proportion of casting material 40 is present in this region (including cast material deposited on the thin-layer support element layer 36) or the carrier element projection 20 and penetrates this) results in a very resistant edge protection profile 12, which provides both a good mechanical and a good moisture protection.
  • a further manufacturing method for producing a facade element 2 is shown, in which case a facade element is produced, which is suitable, for example, for the formation of a Eckutzaden Schlierens.
  • a groove 30 is milled with a perpendicular to the vertical (ie perpendicular to the plane of the carrier element 4) inclined end side leg 32 and then, as described above in the process, applied with cast material 40.
  • the result is a façade element with an inclined end face 10 or an edge protection profile 12 also arranged inclined.
  • Fig. 18 is one too Fig. 17 shown similar manufacturing method, in which case a facade element is produced, which is also suitable for the formation of a Eckutzaden Schl.
  • a groove 30 with a perpendicular to the vertical (ie perpendicular to the plane of the support member 4) inclined end side leg 32 is milled and then applied with cast material 40 here.
  • an additional groove 30 ' is introduced here in the casting area, which has a substantially rectangular cross-section. This rectangular area 30 'prevents, among other things, the departure of the resulting tip when the edge area 28 is removed.
  • the result here too is a façade element with an inclined end face 10 or an edge protection profile 12 likewise inclined.
  • a manufacturing method for a facade element or a step thereof is shown.
  • a groove 30 with a discontinuous, namely step-shaped, cross-sectional profile is sawed in.
  • the front-side area 30 ' that is to say the later casting area 14

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Finishing Walls (AREA)
EP09179866A 2009-12-18 2009-12-18 Elément de façade plat et son procédé de fabrication Withdrawn EP2335893A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP09179866A EP2335893A1 (fr) 2009-12-18 2009-12-18 Elément de façade plat et son procédé de fabrication

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP09179866A EP2335893A1 (fr) 2009-12-18 2009-12-18 Elément de façade plat et son procédé de fabrication

Publications (1)

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EP2335893A1 true EP2335893A1 (fr) 2011-06-22

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112497420A (zh) * 2020-11-17 2021-03-16 汤桂清 一种无需人工操作的板材封边装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0382513A2 (fr) 1989-02-07 1990-08-16 Steelcase Inc. Confection de plaques et installations à utiliser dans cette confection
EP0580067A1 (fr) 1992-07-21 1994-01-26 Media Profili Srl Procédé pour la préparation des bords de panneaux déstinés à être recouverts, et panneaux ainsi obtenus
US5851634A (en) * 1992-08-11 1998-12-22 E. Khashoggi Industries Hinges for highly inorganically filled composite materials
EP0903451A2 (fr) * 1997-09-22 1999-03-24 Unilin Beheer B.V. Elément de plancher, procédé pour la fabrication d'un tel élément de plancher et dispositif utilisé avec
EP1154090A1 (fr) 2000-05-11 2001-11-14 POZZI AROSIO INDUSTRIA VERNICI SPECIALI DI ALESSANDRO POZZI & C. S.A.S. Procédé pour fabriquer des articles composites et article composite ainsi obtenu
EP1990159A1 (fr) * 2007-05-11 2008-11-12 Homag Holzbearbeitungssysteme AG Procédé de fabrication d'accumulateurs de panneaux de construction légers

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0382513A2 (fr) 1989-02-07 1990-08-16 Steelcase Inc. Confection de plaques et installations à utiliser dans cette confection
EP0580067A1 (fr) 1992-07-21 1994-01-26 Media Profili Srl Procédé pour la préparation des bords de panneaux déstinés à être recouverts, et panneaux ainsi obtenus
US5851634A (en) * 1992-08-11 1998-12-22 E. Khashoggi Industries Hinges for highly inorganically filled composite materials
EP0903451A2 (fr) * 1997-09-22 1999-03-24 Unilin Beheer B.V. Elément de plancher, procédé pour la fabrication d'un tel élément de plancher et dispositif utilisé avec
EP1154090A1 (fr) 2000-05-11 2001-11-14 POZZI AROSIO INDUSTRIA VERNICI SPECIALI DI ALESSANDRO POZZI & C. S.A.S. Procédé pour fabriquer des articles composites et article composite ainsi obtenu
EP1990159A1 (fr) * 2007-05-11 2008-11-12 Homag Holzbearbeitungssysteme AG Procédé de fabrication d'accumulateurs de panneaux de construction légers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112497420A (zh) * 2020-11-17 2021-03-16 汤桂清 一种无需人工操作的板材封边装置

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