US20050217784A1 - Process for the production of hydraulic binder boards having tapered cut ends - Google Patents
Process for the production of hydraulic binder boards having tapered cut ends Download PDFInfo
- Publication number
- US20050217784A1 US20050217784A1 US10/512,773 US51277305A US2005217784A1 US 20050217784 A1 US20050217784 A1 US 20050217784A1 US 51277305 A US51277305 A US 51277305A US 2005217784 A1 US2005217784 A1 US 2005217784A1
- Authority
- US
- United States
- Prior art keywords
- hydraulic binder
- board
- boards
- cut end
- cut
- 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.)
- Abandoned
Links
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Classifications
-
- 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
-
- 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
- B28B19/00—Machines or methods for applying the material to surfaces to form a permanent layer thereon
- B28B19/0092—Machines or methods for applying the material to surfaces to form a permanent layer thereon to webs, sheets or the like, e.g. of paper, cardboard
Definitions
- This invention relates to a process and a line for the production of hydraulic binder boards having tapered cut ends, the hydraulic binder being in particular gypsum.
- the invention relates to a process for the production of a hydraulic binder board having at least one tapered cut end, comprising the steps of:
- the invention relates to a process for the production of hydraulic binder boards having tapered cut ends, comprising the steps of:
- a further object of the invention is a production line for hydraulic binder boards having at least one tapered cut end, comprising:
- Yet a further object of the invention is a production line for hydraulic binder boards, comprising
- the processes and the production lines of the invention are particularly suitable for the manufacture of gypsum boards, and in particular four-tapered edges gypsum boards.
- FIG. 1 is a view in perspective elevation of a gypsum board production line according to this invention
- FIG. 2 is a schematic view of the pressing area before the application of the compressive loads
- FIG. 3 is a schematic view of the pressing area during the application of the compressive loads
- FIG. 4 is a schematic view of the pressing area after the application of the compressive loads
- FIG. 5 is a schematic perspective view of the pressing area showing the presses.
- FIG. 1 it can be seen a general process flow diagram comprising the well known units, that is, a calcination unit 1 , a pumping unit 2 , a stucco dosing unit 3 , a dry additiving unit 4 , a wet additiving unit 5 , a water adding unit 6 , a foam adding unit 7 , a face paper feeding unit 8 , a mixer unit 9 , a back gray paper feeding unit 10 , a cutting unit 11 , a wet discharge 12 , a wet transfer unit 13 , a waiting area 14 , a dryer unit 15 , a dry discharge 16 , a dry transfer unit 17 , a trimming unit 18 , a packaging unit 19 and a storage unit 20 .
- a calcination unit 1 a pumping unit 2 , a stucco dosing unit 3 , a dry additiving unit 4 , a wet additiving unit 5 , a water adding unit 6 , a
- the process for the production of gypsum boards further comprises steps to impart a taper to the cut end of a board.
- edge refers to the finished edge of the board extending parallel to the direction of board travel
- end refers to the cut end of the board extending transverse to the edges.
- a first board 24 is moved to a pressing area. A further movement of the board may be stopped by a gate 32 .
- each of boards 24 , 25 has a cut end ( 24 b or 25 a respectively), in an abutting position with a cut end of the other board (see the centre of the figure).
- compressive loads are applied on all cut ends 24 a , 24 b , 25 a , 25 b .
- the loads are generally applied downwards, preferably against the face paper of the board.
- the first compressive load applied by press 21 and the third compressive load applied by the press 23 are generally substantially equal.
- the second compressive load applied by press 22 is generally about twice the amount of the first compressive load.
- the compressive loads are preferably applied simultaneously.
- FIG. 3 represents the situation while the presses are applying the compressive loads on the boards.
- FIG. 4 represents the situation after the presses have applied the compressive loads on the boards.
- the presses 21 - 23 may be heated presses.
- Plate 26 of press 21 has the form of a prism the section of which is a right triangle with truncated angles.
- Plate 28 of press 23 has a form similar to that of plate 26 .
- Plates 26 and 28 are mounted on presses 21 and 23 , symmetrically with respect to plate 29 , in a way that they taper in thickness toward the center of the gypsum boards.
- Plate 29 of press 22 has the form of a prism the section of which is an isoceles triangle with truncated angles, the top of the isoceles triangle being turned to the board plate to be pressed.
- the abutting position of the boards brings the advantage that the application by press 22 of a single compressive load can create two tapers at the time on the cut ends of plates 24 and 25 which are in contact.
- the boards to be pressed according to the invention have a low density, i.e. less than 9 kg/m 2 .
- steps a) to e) are applied similarly to third and fourth boards.
- a third board is moved preferably simultaneously with first board 24 , in a parallel manner, so that its longitudinal edges are parallel to the longitudinal edges of first board 24 and its cut ends are aligned with cut ends 24 a , 24 b of first board 24 .
- a fourth board is also is moved preferably simultaneously with second board 25 , in a parallel manner, so that its longitudinal edges are parallel to the longitudinal edges of second board 25 and its cut ends are aligned with cut ends 25 a , 25 b of second board 25 .
- press 21 presses first cut end 24 a of first board 24 it then simultaneously presses the first cut end of the third board
- press 22 presses second cut end 24 b of first board 24 and first cut end 25 a of second board 25 it simultaneously presses the second cut end of the third board and the first cut end of said fourth board and when press 23 presses second cut end 25 b of second board 25 , it simultaneously presses the second cut end of the fourth board.
- a fifth board is aligned with the first and third boards and a sixth board is aligned with the second and fourth boards.
- Press 21 then presses the first row of boards (1 st , 3 rd and 5 th ), press 23 presses the second row of boards (2 nd , 4 th and 6 th ) and press 22 presses one cut end of the boards of both the first and second rows.
- additional boards can be added to the first and second rows.
- a third row of board is also pressed.
- Pressing plate 28 of press 23 is then replaced by a pressing plate similar to pressing plate 29 of press 22 .
- a new press is then provided and has pressing plate 28 installed on it and aligned with the pressing plates of presses 21 - 23 .
- the boards of the third row are arranged so that their (first) cut ends contact the (second) cut ends of the second row.
- additional row of boards can be added to the first, second and third rows. The cut ends of all rows may then be pressed simultaneously.
- the speed of load application and applied pressure applied on the boards essentially depend on the core of the board and the elected embodiment, i.e. on the process carried out, which can be a wet process or a dry process.
- the steps a) to e) of the process are carried out before the boards are dried.
- the pressing is then located upstream from the dryer 15 with reference to the board travel (see FIG. 1 ).
- the pressing area may be located just before it, i.e. in the waiting area 14 , where the boards are conventionally brought by the conveyor means of the production line.
- the pressing area may be an adjoining area 30 of the production line, where the boards may be moved from the waiting area 14 by conventional moving means (not shown) such as a conveyor comprising an endless belt revolving about end rollers.
- An interesting feature of this embodiment is that the pressing steps take place while the boards are waiting before entering the dryer. As a result, the waiting time is used to press the boards, that is, no additional time is needed to press the boards and the rate of the production line is not decreased by the pressing steps.
- the pressure may for example be from 3 to 80 kg/cm 2 , preferably from 5 to 30 kg/cm 2 , for a board having a density of 8.8 kg/m 2 .
- the boards can enter the dryer 15 as in a conventional process.
- the steps a) to e) are carried out after the boards are dried.
- the pressing area 31 is therefore located downstream from the dryer 15 .
- the boards may then be taken at the end of the production line, from the stacker of the storage.
- the production line therefore comprises means for spraying a softening liquid on at least the cut ends of the boards.
- These spraying means are located between the dryer 15 and the pressing area 31 or they may located in the pressing area 31 . They may be conventional spraying means well known by those skilled in the art.
- the softening liquid may be water, alcohol, spirits, propylen glycol or any agent having a high vaporization speed.
- the waiting time is generally from 2 to 20 seconds, preferably about 10 seconds.
- the pressure applied by the presses in this embodiment is usually higher than in the wet process for the same type of board.
- the pressure may then be for example from 5 to 100 kg/cm 2 , preferably from 25 to 60 kg/cm 2 , for a board having a density of 8.8 kg/m 2 .
- the boards may be moved from beneath the presses and transferred to the storage unit 20 or to a special storage area, where they become dry before being used or sent to the customer.
- the boards may also be transferred to a booker and booked face to face or they can be directly skipped in a stacking operation by a suitable stacker well known in the industry.
- the process comprises a subsequent step in which the pressed boards are dried in an additional dryer (not shown) which may be a heated blower dryer or an infrared dryer.
- the production rate of the line is not impaired either in this embodiment.
- the production line comprises means for the obtention of tapered edges, for example a tapered edge belt which is placed along the edge of the continuous belt and extends beneath the setting gypsum board, tapering in thickness toward the center of the gypsum board (see for example FIG. 5 of EP-A-482 810).
- a tapered edge belt which is placed along the edge of the continuous belt and extends beneath the setting gypsum board, tapering in thickness toward the center of the gypsum board (see for example FIG. 5 of EP-A-482 810).
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
- Coating Apparatus (AREA)
- Dry Formation Of Fiberboard And The Like (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
- Tyre Moulding (AREA)
- Press-Shaping Or Shaping Using Conveyers (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TR2002/01177A TR200201177A2 (tr) | 2002-04-30 | 2002-04-30 | Pahlı kesilmiş uçlara sahip hidrolik bağlama levhalarının üretimi için proses |
TRA200201177 | 2002-04-30 | ||
PCT/EP2003/012880 WO2004007162A1 (en) | 2002-04-30 | 2003-04-25 | Process for the production of hydraulic binder boards having tapered cut ends |
Publications (1)
Publication Number | Publication Date |
---|---|
US20050217784A1 true US20050217784A1 (en) | 2005-10-06 |
Family
ID=30113499
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/512,773 Abandoned US20050217784A1 (en) | 2002-04-30 | 2003-04-25 | Process for the production of hydraulic binder boards having tapered cut ends |
Country Status (7)
Country | Link |
---|---|
US (1) | US20050217784A1 (de) |
EP (1) | EP1501666A1 (de) |
AR (1) | AR039346A1 (de) |
AU (1) | AU2003276279A1 (de) |
PL (1) | PL372244A1 (de) |
TR (1) | TR200201177A2 (de) |
WO (1) | WO2004007162A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080179775A1 (en) * | 2007-01-31 | 2008-07-31 | Usg Interiors, Inc. | Transfer Plate Useful in the Manufacture of Panel and Board Products |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007503334A (ja) | 2003-08-25 | 2007-02-22 | ラファルジュ プラトル | そぎ縁を備えた水硬性バインダをベースとするボード、水硬性バインダをベースとするボードの製造方法およびかかるボードを製造するためのラインおよび内部構造の構成方法 |
US20070119119A1 (en) * | 2005-11-09 | 2007-05-31 | Conboy John S | System and method for making wallboard |
US8123991B2 (en) | 2005-11-09 | 2012-02-28 | John S Conboy | System and method for making wallboard |
Citations (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1439289A (en) * | 1922-12-19 | Drying | ||
US1676318A (en) * | 1922-03-20 | 1928-07-10 | United States Gypsum Co | Apparatus for making lap-edged plaster sheathing board |
US1754429A (en) * | 1922-09-25 | 1930-04-15 | United States Gypsum Co | Plaster-wall-board construction |
US1856936A (en) * | 1928-08-11 | 1932-05-03 | Nat Gypsum Co | Plaster board apparatus |
US1856932A (en) * | 1929-10-01 | 1932-05-03 | Nat Gypsum Co | Method and apparatus for making plaster board |
US1871563A (en) * | 1929-10-30 | 1932-08-16 | United States Gypsum Co | Apparatus for manufacturing tile board |
US2044234A (en) * | 1933-12-01 | 1936-06-16 | Gordon R Walper | Method of manufacturing wallboard |
US2168803A (en) * | 1937-10-23 | 1939-08-08 | United States Gypsum Co | Method and apparatus for manufacturing wallboard |
US2238017A (en) * | 1937-10-23 | 1941-04-08 | United States Gypsum Co | Method and apparatus for manufacturing wallboard |
US2246987A (en) * | 1937-10-23 | 1941-06-24 | United States Gypsum Co | Continuous molding apparatus |
US2537509A (en) * | 1944-12-20 | 1951-01-09 | United States Gypsum Co | Process for making wallboard |
US2712169A (en) * | 1951-08-03 | 1955-07-05 | George A Buttress | Machine for severing a ribbon of plasterboard to form plasterboard panels and finishing the ends of the panels |
US2991826A (en) * | 1957-09-11 | 1961-07-11 | Celotex Corp | Gypsum wallboard |
US2991824A (en) * | 1957-08-29 | 1961-07-11 | Celotex Corp | Recessed end gypsum board and process of manufacture |
US2991825A (en) * | 1957-09-05 | 1961-07-11 | Celotex Corp | Gypsum wallboard and process of manufacture |
US3050104A (en) * | 1957-07-17 | 1962-08-21 | Celotex Corp | Manufacture of gypsum board |
US3373065A (en) * | 1964-04-29 | 1968-03-12 | United States Gypsum Co | Gypsum board-forming methods and machines |
US4397123A (en) * | 1981-01-29 | 1983-08-09 | Parker Robert F | Drywall board construction |
US4626389A (en) * | 1983-05-09 | 1986-12-02 | Karsten Lempfer | Installation for the continuous production of materials using exothermically hardening binders and method |
US4781558A (en) * | 1986-09-26 | 1988-11-01 | The Celotex Corporation | Apparatus for making an embossed gypsum panel |
US5198052A (en) * | 1990-10-22 | 1993-03-30 | Domtar, Inc. | Method of reshaping a gypsum board core and products made by same |
US5842280A (en) * | 1996-02-14 | 1998-12-01 | Robell; Glenn | Gridded measurement system for construction materials |
US5851634A (en) * | 1992-08-11 | 1998-12-22 | E. Khashoggi Industries | Hinges for highly inorganically filled composite materials |
US5975280A (en) * | 1996-09-09 | 1999-11-02 | Heidelberger Druckmaschinen | Device for transporting flat products to further processing units or delivery stations |
US20010044016A1 (en) * | 2001-02-22 | 2001-11-22 | Watras Edward W. | Continuous method of making four-tapered edge gypsum board and the gypsum board made therefrom |
US20030084633A1 (en) * | 1995-06-30 | 2003-05-08 | Francois Zuber | Method, assembly and additional coat for the construction of interior works |
US20050127545A1 (en) * | 2002-02-26 | 2005-06-16 | Lafarge Platres | Production line for producing sheets based on hydraulic binder and method of manufacturing the same |
US20050224154A1 (en) * | 2002-04-10 | 2005-10-13 | Lafarge Platres | Method for production of plaster plates having 4 trapered edges |
US20050257873A1 (en) * | 2002-07-19 | 2005-11-24 | Lafarge Platres | Method for making thin-edge boards, based on hydraulic binders, line and device for producing same |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB429380A (en) * | 1934-02-07 | 1935-05-29 | Gypsum Lime And Alabastine Can | Improvements in or relating to the manufacture of wallboard |
-
2002
- 2002-04-30 TR TR2002/01177A patent/TR200201177A2/xx unknown
-
2003
- 2003-04-23 AR ARP030101399A patent/AR039346A1/es unknown
- 2003-04-25 AU AU2003276279A patent/AU2003276279A1/en not_active Abandoned
- 2003-04-25 WO PCT/EP2003/012880 patent/WO2004007162A1/en not_active Application Discontinuation
- 2003-04-25 EP EP03763897A patent/EP1501666A1/de not_active Withdrawn
- 2003-04-25 PL PL03372244A patent/PL372244A1/xx unknown
- 2003-04-25 US US10/512,773 patent/US20050217784A1/en not_active Abandoned
Patent Citations (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1439289A (en) * | 1922-12-19 | Drying | ||
US1676318A (en) * | 1922-03-20 | 1928-07-10 | United States Gypsum Co | Apparatus for making lap-edged plaster sheathing board |
US1754429A (en) * | 1922-09-25 | 1930-04-15 | United States Gypsum Co | Plaster-wall-board construction |
US1856936A (en) * | 1928-08-11 | 1932-05-03 | Nat Gypsum Co | Plaster board apparatus |
US1856932A (en) * | 1929-10-01 | 1932-05-03 | Nat Gypsum Co | Method and apparatus for making plaster board |
US1871563A (en) * | 1929-10-30 | 1932-08-16 | United States Gypsum Co | Apparatus for manufacturing tile board |
US2044234A (en) * | 1933-12-01 | 1936-06-16 | Gordon R Walper | Method of manufacturing wallboard |
US2168803A (en) * | 1937-10-23 | 1939-08-08 | United States Gypsum Co | Method and apparatus for manufacturing wallboard |
US2238017A (en) * | 1937-10-23 | 1941-04-08 | United States Gypsum Co | Method and apparatus for manufacturing wallboard |
US2246987A (en) * | 1937-10-23 | 1941-06-24 | United States Gypsum Co | Continuous molding apparatus |
US2537509A (en) * | 1944-12-20 | 1951-01-09 | United States Gypsum Co | Process for making wallboard |
US2712169A (en) * | 1951-08-03 | 1955-07-05 | George A Buttress | Machine for severing a ribbon of plasterboard to form plasterboard panels and finishing the ends of the panels |
US3050104A (en) * | 1957-07-17 | 1962-08-21 | Celotex Corp | Manufacture of gypsum board |
US2991824A (en) * | 1957-08-29 | 1961-07-11 | Celotex Corp | Recessed end gypsum board and process of manufacture |
US2991825A (en) * | 1957-09-05 | 1961-07-11 | Celotex Corp | Gypsum wallboard and process of manufacture |
US2991826A (en) * | 1957-09-11 | 1961-07-11 | Celotex Corp | Gypsum wallboard |
US3373065A (en) * | 1964-04-29 | 1968-03-12 | United States Gypsum Co | Gypsum board-forming methods and machines |
US4397123A (en) * | 1981-01-29 | 1983-08-09 | Parker Robert F | Drywall board construction |
US4626389A (en) * | 1983-05-09 | 1986-12-02 | Karsten Lempfer | Installation for the continuous production of materials using exothermically hardening binders and method |
US4781558A (en) * | 1986-09-26 | 1988-11-01 | The Celotex Corporation | Apparatus for making an embossed gypsum panel |
US5198052A (en) * | 1990-10-22 | 1993-03-30 | Domtar, Inc. | Method of reshaping a gypsum board core and products made by same |
US5851634A (en) * | 1992-08-11 | 1998-12-22 | E. Khashoggi Industries | Hinges for highly inorganically filled composite materials |
US20030084633A1 (en) * | 1995-06-30 | 2003-05-08 | Francois Zuber | Method, assembly and additional coat for the construction of interior works |
US5842280A (en) * | 1996-02-14 | 1998-12-01 | Robell; Glenn | Gridded measurement system for construction materials |
US5975280A (en) * | 1996-09-09 | 1999-11-02 | Heidelberger Druckmaschinen | Device for transporting flat products to further processing units or delivery stations |
US20010044016A1 (en) * | 2001-02-22 | 2001-11-22 | Watras Edward W. | Continuous method of making four-tapered edge gypsum board and the gypsum board made therefrom |
US20050127545A1 (en) * | 2002-02-26 | 2005-06-16 | Lafarge Platres | Production line for producing sheets based on hydraulic binder and method of manufacturing the same |
US20050139052A1 (en) * | 2002-02-26 | 2005-06-30 | Lafarge Platres | Method for production of sheets made from binder, production line for said sheets and device for generation of an impression |
US20050224154A1 (en) * | 2002-04-10 | 2005-10-13 | Lafarge Platres | Method for production of plaster plates having 4 trapered edges |
US20050257873A1 (en) * | 2002-07-19 | 2005-11-24 | Lafarge Platres | Method for making thin-edge boards, based on hydraulic binders, line and device for producing same |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080179775A1 (en) * | 2007-01-31 | 2008-07-31 | Usg Interiors, Inc. | Transfer Plate Useful in the Manufacture of Panel and Board Products |
Also Published As
Publication number | Publication date |
---|---|
EP1501666A1 (de) | 2005-02-02 |
WO2004007162A8 (en) | 2004-05-06 |
WO2004007162A1 (en) | 2004-01-22 |
AU2003276279A1 (en) | 2004-02-02 |
AR039346A1 (es) | 2005-02-16 |
PL372244A1 (en) | 2005-07-11 |
TR200201177A2 (tr) | 2004-02-23 |
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Legal Events
Date | Code | Title | Description |
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AS | Assignment |
Owner name: LAFARGE PLATRES, FRANCE Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:DALOGLU, BAHATTIN;DALOGLU, TIMUCIN;REEL/FRAME:016077/0896 Effective date: 20041123 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |