EP1389251B1 - Method for curving plasterboard panels, and component thus obtained - Google Patents
Method for curving plasterboard panels, and component thus obtained Download PDFInfo
- Publication number
- EP1389251B1 EP1389251B1 EP02771654A EP02771654A EP1389251B1 EP 1389251 B1 EP1389251 B1 EP 1389251B1 EP 02771654 A EP02771654 A EP 02771654A EP 02771654 A EP02771654 A EP 02771654A EP 1389251 B1 EP1389251 B1 EP 1389251B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- panels
- cardboard
- curving
- layers
- mold part
- 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.)
- Expired - Lifetime
Links
- 238000000034 method Methods 0.000 title claims description 21
- 239000011505 plaster Substances 0.000 claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000000853 adhesive Substances 0.000 claims abstract description 9
- 230000001070 adhesive effect Effects 0.000 claims abstract description 9
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims abstract description 7
- 229920002554 vinyl polymer Polymers 0.000 claims abstract description 7
- 238000003892 spreading Methods 0.000 claims description 10
- 230000007480 spreading Effects 0.000 claims description 10
- 239000007767 bonding agent Substances 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
- 238000003825 pressing Methods 0.000 claims description 5
- 238000005304 joining Methods 0.000 claims description 3
- 229920001807 Urea-formaldehyde Polymers 0.000 claims description 2
- 239000007864 aqueous solution Substances 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 230000008020 evaporation Effects 0.000 claims description 2
- 238000001704 evaporation Methods 0.000 claims description 2
- 239000003292 glue Substances 0.000 claims description 2
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 230000014759 maintenance of location Effects 0.000 claims description 2
- 238000005096 rolling process Methods 0.000 claims description 2
- 238000009827 uniform distribution Methods 0.000 claims description 2
- 239000012943 hotmelt Substances 0.000 claims 1
- 230000006641 stabilisation Effects 0.000 claims 1
- 238000011105 stabilization Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000011120 plywood Substances 0.000 description 2
- 239000004831 Hot glue Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
- E04C2/04—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres
- E04C2/043—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres of plaster
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/002—Producing shaped prefabricated articles from the material assembled from preformed elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/08—Apparatus or processes for treating or working the shaped or preshaped articles for reshaping the surface, e.g. smoothing, roughening, corrugating, making screw-threads
- B28B11/10—Apparatus or processes for treating or working the shaped or preshaped articles for reshaping the surface, e.g. smoothing, roughening, corrugating, making screw-threads by using presses
Definitions
- the present invention relates to a method for the mass-production of curved components for finishing masonry work or other structures, obtained from normally commercially available flat plasterboard panels, which are already widely used in the building sector for the most disparate uses since in addition to offering good thermal and acoustic insulation they have an appreciable structural strength and are particularly suitable to be completed by simply painting or with any other surface treatment or covering.
- the plasterboard panels to which the invention relates are those of the most common type, constituted by a sheet or plate of plaster sandwiched between two layers of cardboard.
- the method according to the invention arises from the problem of providing the workers in the building sector and in the interior-decoration sector the possibility to easily build, at particularly low cost and without specific manual skills, curved surfaces that are perfectly executed because they are formed by means of prefabricated elements to be installed on site and completed in the same manner required by conventional plasterboard panels.
- the method according to the present invention is as simple as it is novel and inventive and consists in curving and joining simultaneously, in appropriate forming presses, two or more plasterboard panels that are superimposed after adequately spreading the surfaces in contact with a suitable bonding agent, which is preferably water-based in order to impregnate and soften more effectively the layers of cardboard to be bonded in a curved configuration.
- a suitable bonding agent which is preferably water-based in order to impregnate and soften more effectively the layers of cardboard to be bonded in a curved configuration.
- the plasterboard panels A and B which in the sectional view of Figure 1 are formed respectively by the layers of cardboard 1 and 3 with the interposed plaster sheet 2 and by the layers of cardboard 4 and 6 with the interposed plaster sheet 5, before their clamping between the female mold part C and the male mold part D of the forming press, are spread with vinyl glue or other suitable water-based bonding agent in the layers of cardboard 3 or 4, i.e., in the contact faces of the two panels to be joined by overlapping and compression.
- the retention time of the pairs of curved panels inside the forming press can be shortened significantly, and production times can be speeded up, by spreading onto the surfaces to be bonded bands or strips of water-based vinyl adhesive alternated with bands or strips of hot-melt adhesive, such as self-curing urea resin in an aqueous solution, which sets more quickly than vinyl adhesive.
- Figures 3 and 4 show that if the curvature to be imparted by means of the female mold part F and the male mold part G of the molding press is particularly significant or marked, the panels A and B to be curved and bonded simultaneously, after spreading suitable adhesives on the faces 3 and 4 to be joined, are laterally provided, alongside their extension and during their insertion in the forming press, with a flexible metal sheet E, which by being arranged so as to lie on the outside of the curve to be formed, in the specific case in contact with the cardboard layer 6 of the panel B, ensures perfect curving of the panels and a substantially uniform distribution of the radial fractures in the plaster sheets 2 and 5.
- a further operational advantage, while performing the described method, can be provided, especially in cases where curving is particularly significant or marked, by a plurality of free rollers H which, being arranged at the margins of the cavity of the mold and so that their axes are parallel to the generatrix of the curve, convert into a rolling friction the friction of the flexible metal sheet E or, if said metal sheet is not present, of the plasterboard panels A and B alone when the assembly, pushed by the male mold part or half-mold G, descends forcibly into the mold part or female half-mold F to assume the shape provided in the forming press.
- the devised method compatibly with the ordinary requirements of compression formation, allows the greatest freedom of choice of radii and extent of the curves ( Figures 5 and 6) and in the succession of curves and countercurves ( Figures 7 and 8) or also in the combination of curved portions with other straight ones ( Figure 9).
Landscapes
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Laminated Bodies (AREA)
- Panels For Use In Building Construction (AREA)
- Making Paper Articles (AREA)
- Finishing Walls (AREA)
- Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
- Press-Shaping Or Shaping Using Conveyers (AREA)
Abstract
Description
Claims (8)
- A method for curving plasterboard panels, mainly comprising the steps of: curving and joining simultaneously, by pressing between a female mold part (C,F) and a male mold part (D,G) of a suitable forming press, two or more superimposed plasterboard panels (A,B), each formed by a sheet of plaster (2,5) sandwiched between two layers of cardboard (1,3,4,6), after previously spreading a suitable water-based bonding agent, in order to impregnate and soften more effectively the layers of cardboard (1,3,4,6) to be mated and bonded in a curved configuration.
- The method according to claim 1, characterized in that the spreading step of the water-based bonding agent comprises impregnating the cardboard layers (1,3,4,6) which are to be bonded so as to make them malleable, and to facilitate curving thereof, while the curving step comprises for the adjacent plaster sheets (2,5), which are rigid, formation of a succession of radial fractures (7) which divaricate toward the outside of the curve at intervals that can vary depending on the set radius of curvature and the thickness of said plaster sheets.
- The method according to the preceding claims, characterized in that the pressing step carried out for the plasterboard panels (A,B) to be curved and joined in a superimposed configuration, is performed for the time required for the evaporation of the aqueous base and for the setting of the water-based bonding agent, and comprises stabilization of the curving imparted by the forming press, by subjecting the layers of cardboard (1,3,4,6) of each plasterboard panel (A,B) to a deformation, which is a stretching deformation for the layer on the outside of the curve and a compression deformation for the layer on the inside of said curve, to reach permanent, stable, equilibrium of the opposite curving tensions of the two layers of cardboard that belong to different panels and are directly subjected to affect the bonding.
- The method according to the preceding claims, characterized in that it comprises spreading in said spreading step the plasterboard panels (A,B) to be joined in a curved configuration for bonding, with water-based vinyl adhesive or other suitable water-based bonding agent.
- The method according to claims 1, 2 and 3, characterized in that the retention time of the plasterboard panels (A,B) inside the forming press during said pressing step is reduced significantly by way of an additional spreading step comprising spreading onto the surfaces to be joined bands or strips of water-based vinyl adhesive alternated with bands or strips of hot-melt glue, such as self-curing urea resin in aqueous solution, which has shorter setting times than the vinyl adhesive.
- The method according to the preceding claims, characterized in that the curving step further comprises, in order to ensure even and exact curving of the plasterboard panels (A,B) to be joined and a substantially uniform distribution of the radial fractures (7) in the plaster sheets (2,5) of said panels, (A,B) during insertion of said panels (A,B) between the female mold part (F) and the male mold part (G) of the forming press, arranging laterally, alongside said panels (A,B), a flexible metal sheet (E), which is arranged so that after the pressing step, the metal sheet (E) lies on the outside of the curve formed by the plasterboard panels (A,B).
- The method according to the preceding claims, characterized in that it further comprises the step of providing a plurality of free rollers (H), arranged at the margins of the cavity of the female mold part (F) with axes thereof parallel to the generatrix of the curvature of the female mold part (F), convert into rolling friction any of the friction with the flexible metal sheet (E) or, with the plasterboard panels (A) and (B) alone, upon pushing of the panel assembly by action the male half part (G), to forcibly descend into the female mold part (F) in order to assume the shape that is preset in the forming press.
- Plasterboard panels curved by way of a method as set forth in any of the claims 1-7, characterized in that they are constituted by curved components, formed by the compression bonding of two or more superimposed plasterboard panels (A,B), each comprising at least one sheet of plaster (2,5) interposed between two layers of cardboard (1,3,4,6), having curved portions of profiles of different shapes, said plaster sheets (2,5) comprising a succession of radial fractures (7) which divaricate toward the outside of the curvature thereof and are arranged at intervals that can vary depending on the radius of curvature and the thickness of said plaster sheets (2,5).
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITFO20010015 | 2001-05-24 | ||
IT2001FO000015A ITFO20010015A1 (en) | 2001-05-24 | 2001-05-24 | METHOD FOR CURVING PLASTERBOARD PANELS AND ELEMENTS SO OBTAINED. |
PCT/EP2002/005613 WO2002095157A1 (en) | 2001-05-24 | 2002-05-22 | Method for curving plasterboard panels, and component thus obtained |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1389251A1 EP1389251A1 (en) | 2004-02-18 |
EP1389251B1 true EP1389251B1 (en) | 2005-11-09 |
Family
ID=11442423
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02771654A Expired - Lifetime EP1389251B1 (en) | 2001-05-24 | 2002-05-22 | Method for curving plasterboard panels, and component thus obtained |
Country Status (11)
Country | Link |
---|---|
EP (1) | EP1389251B1 (en) |
JP (1) | JP2004525015A (en) |
CN (1) | CN1274929C (en) |
AT (1) | ATE309427T1 (en) |
CA (1) | CA2447701C (en) |
DE (1) | DE60207238T2 (en) |
DK (1) | DK1389251T3 (en) |
ES (1) | ES2253560T3 (en) |
IT (1) | ITFO20010015A1 (en) |
RU (1) | RU2286251C2 (en) |
WO (1) | WO2002095157A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020020427A1 (en) * | 2018-07-25 | 2020-01-30 | Knauf Gips Kg | Method and device for forming a shaped gypsum plasterboard |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITFO20010015A1 (en) | 2001-05-24 | 2002-11-24 | Eurosistemi S R L | METHOD FOR CURVING PLASTERBOARD PANELS AND ELEMENTS SO OBTAINED. |
ITBO20080553A1 (en) * | 2008-09-11 | 2010-03-12 | Cierre Di Celli Roberto | METHOD TO REALIZE A CURVED PANEL AND PANEL SO OBTAINED |
DE102009047917B4 (en) | 2009-10-01 | 2015-08-27 | Fermacell Gmbh | Multilayer, curved lightweight building board and method for its production |
CN102059906B (en) * | 2010-11-24 | 2013-05-01 | 南安市贝斯泰石业有限公司 | Photo-permeable curved face stone and production method thereof |
CN104947847A (en) * | 2015-06-15 | 2015-09-30 | 深圳赤晓建筑科技有限公司 | Arc-shaped sandwich board, arc-shaped wall body and production method of arc-shaped sandwich board |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3176950B2 (en) * | 1991-03-30 | 2001-06-18 | チヨダウーテ株式会社 | Method for producing gypsum board with uneven pattern |
JPH04325201A (en) * | 1991-04-25 | 1992-11-13 | Yoshino Sekko Kk | Molding method for curved surface board and mold frame for curbed surface formation |
JPH08187817A (en) * | 1995-01-12 | 1996-07-23 | Chichibu Onoda Cement Corp | Building material |
IT1283521B1 (en) | 1996-07-26 | 1998-04-21 | Profil Gips Di Serafini Livio | METHOD FOR THE CREATION OF FINISHING ELEMENTS FOR MASONRY AND SIMILAR WORKS FROM MULTILAYER SLABS AND ELEMENTS SO OBTAINED |
IT1283378B1 (en) * | 1996-07-31 | 1998-04-17 | Xiloform S P A | PROCEDURE AND MACHINE FOR THE MANUFACTURE OF CURVED PLYWOOD PROFILES, PARTICULARLY FOR COVERING PIPES AND |
ITFO20010015A1 (en) | 2001-05-24 | 2002-11-24 | Eurosistemi S R L | METHOD FOR CURVING PLASTERBOARD PANELS AND ELEMENTS SO OBTAINED. |
-
2001
- 2001-05-24 IT IT2001FO000015A patent/ITFO20010015A1/en unknown
-
2002
- 2002-05-22 EP EP02771654A patent/EP1389251B1/en not_active Expired - Lifetime
- 2002-05-22 DK DK02771654T patent/DK1389251T3/en active
- 2002-05-22 WO PCT/EP2002/005613 patent/WO2002095157A1/en active IP Right Grant
- 2002-05-22 JP JP2002591606A patent/JP2004525015A/en active Pending
- 2002-05-22 CA CA002447701A patent/CA2447701C/en not_active Expired - Fee Related
- 2002-05-22 ES ES02771654T patent/ES2253560T3/en not_active Expired - Lifetime
- 2002-05-22 AT AT02771654T patent/ATE309427T1/en not_active IP Right Cessation
- 2002-05-22 RU RU2003137009/03A patent/RU2286251C2/en active
- 2002-05-22 DE DE60207238T patent/DE60207238T2/en not_active Expired - Lifetime
- 2002-05-22 CN CNB028105273A patent/CN1274929C/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020020427A1 (en) * | 2018-07-25 | 2020-01-30 | Knauf Gips Kg | Method and device for forming a shaped gypsum plasterboard |
Also Published As
Publication number | Publication date |
---|---|
CA2447701C (en) | 2008-08-19 |
ES2253560T3 (en) | 2006-06-01 |
JP2004525015A (en) | 2004-08-19 |
DE60207238T2 (en) | 2006-03-23 |
WO2002095157A1 (en) | 2002-11-28 |
ITFO20010015A1 (en) | 2002-11-24 |
CN1511214A (en) | 2004-07-07 |
DK1389251T3 (en) | 2006-02-06 |
DE60207238D1 (en) | 2005-12-15 |
CA2447701A1 (en) | 2002-11-28 |
ATE309427T1 (en) | 2005-11-15 |
ITFO20010015A0 (en) | 2001-05-24 |
CN1274929C (en) | 2006-09-13 |
RU2286251C2 (en) | 2006-10-27 |
RU2003137009A (en) | 2005-05-27 |
EP1389251A1 (en) | 2004-02-18 |
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