EP1321261A1 - Verfahren zum Herstellen von Platten aus hydraulischem Bindemittel mit sich verjüngenden Rändern sowie Fertigungsstrasse und Vorrichtung zur Herstellung derartiger Platten - Google Patents

Verfahren zum Herstellen von Platten aus hydraulischem Bindemittel mit sich verjüngenden Rändern sowie Fertigungsstrasse und Vorrichtung zur Herstellung derartiger Platten Download PDF

Info

Publication number
EP1321261A1
EP1321261A1 EP01830706A EP01830706A EP1321261A1 EP 1321261 A1 EP1321261 A1 EP 1321261A1 EP 01830706 A EP01830706 A EP 01830706A EP 01830706 A EP01830706 A EP 01830706A EP 1321261 A1 EP1321261 A1 EP 1321261A1
Authority
EP
European Patent Office
Prior art keywords
slat
hydraulic binder
preform
batten
production line
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Withdrawn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
EP01830706A
Other languages
English (en)
French (fr)
Inventor
Giovanni Barcaro
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.)
LAFARGE GESSI SpA
Lafarge Gessi SpA
Original Assignee
LAFARGE GESSI SpA
Lafarge Gessi SpA
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 LAFARGE GESSI SpA, Lafarge Gessi SpA filed Critical LAFARGE GESSI SpA
Priority to EP01830706A priority Critical patent/EP1321261A1/de
Priority to PCT/FR2002/003919 priority patent/WO2003041930A1/fr
Priority to EP02791903A priority patent/EP1448347A1/de
Publication of EP1321261A1 publication Critical patent/EP1321261A1/de
Withdrawn legal-status Critical Current

Links

Images

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
    • 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

  • the present invention relates to a method of manufacture of plates based on hydraulic binder such than plaster, these plates having thinned edges.
  • the invention also relates to a line of production of such plates and a device can be used to make these plates.
  • the assembly thus produced of several plates constitutes a continuous surface with good flatness.
  • the solution offered by the first of these patents consists of making a transverse groove in the sheet of lower paper by folding the latter before the pouring of the plaster composition and arrival on the conveyor belt.
  • the transverse groove making protruding from the bottom sheet of paper creates, once the sheet of paper on the carpet carrier, a hollow whose walls are at an angle. In then cutting the plate at the end of each part at an angle, we obtain two plates with transverse edges thinned.
  • the object of the invention is therefore to propose a method allowing the manufacture of plasterboard having thinned transverse edges. This process achieves remedy the drawbacks of the techniques proposed in prior art.
  • the invention also relates to a line of production of hydraulic binder plates having edges thinned from a preform comprising a facing material covered with a binder composition hydraulic, this production line comprising a conveyor belt as well as near this tapia conveyor, means for introducing, between the preform and the conveyor belt, a slat whose length is at least approximately equal to the width of the preform.
  • transverse edges is meant in the present exposed edges perpendicular to the direction of travel conveyor belt in a production line of hydraulic binder plates.
  • the hydraulic binder composition includes preferably plaster.
  • the facing materials 1 and 3 can be made sheets of paper or cardboard, glass mats or any material known to those skilled in the art as being capable of serve as facing material.
  • a slat 6 is inserted between the preform 5 and the start of the conveyor belt 7.
  • the distance between 1a forming plate 4 and the start of the conveyor belt 7 is such that preform 5 has not yet had time to harden noticeably and still has great plasticity.
  • the introduction is carried out in such a way that the longitudinal axis of the slat 6 is substantially perpendicular to the direction of movement of the belt carrier 7.
  • the slat 6 is then driven by the carpet conveyor 7, just like the preform 5.
  • the socket hydraulic and hardening the composition of plaster 2 is then carried out throughout the movement of preform 5, designated by arrows A.
  • the slat 6 is removed before cutting the preform 5.
  • the hardness of the preform 5 is sufficient to that the slat 6 can be removed without deforming the preform 5 and without the plaster composition 2 coming fill the space or thinning 8 (figure 2) left by removing the batten 6.
  • the removal of the slat 6 can be carried out according to any suitable way. For example, when the length of the slat 6 is greater than the width of the preform 5, the slat 6 projects from the preform 5, and can then be removed quickly according to a direction substantially perpendicular to the direction movement of the conveyor belt 7 and away of the last. This withdrawal action is illustrated by arrow B.
  • the removal of the slat 6 can also occur by the fall of this slat 6 in the space between two rollers of the conveyor belt system which, in general, is not continuous throughout the production line, but is formed by several mats driven by rollers between which there are free spaces.
  • the preform 5 continues to move, still driven by the carpet carrier 7 and curing the composition of plaster 2 continues.
  • the cutting device is adjusted by so that the knife 9 cuts the preform 5 approximately in the middle of thinning 8.
  • each thinning 8 depends on the slat dimensions 6.
  • the latter is generally a parallelepiped whose thickness is generally between 0.5 and 4 mm, preferably between 1.5 and 4 mm.
  • Its width is generally between 5 and 20 cm and its length is at least about equal to the width of preform 5 (possibly reduced by the width of the longitudinal "tape" bands present if applicable), but generally higher in order to be able to enter it for remove it from under the preform 5.
  • the slat 6 is of a longer length to the width of the preform 5, so as to project relative to it, which can facilitate its withdrawal.
  • the material of the slats 6 does not matter, from the as long as it allows these slats to resist the weight of the preform thickness 5 which is above each slat 6. It can therefore be a plastic material, wood, metal, etc. having good resistance to wear and stability over time.
  • the process which has just been described complements of a known process for manufacturing plasterboard having two thinned longitudinal edges. This last generally provides for the installation of a band, usually plastic, usually called “Tape" on each longitudinal side of the carpet transporter 7.
  • a band usually plastic
  • hydraulic 11 as illustrated in FIG. 4 having, in addition to its two thinned transverse edges 10, two edges longitudinal 25 thinned, making a total of four edges thinned.
  • the length of the plasterboard produced depends of course the speed of movement of the mat carrier and the frequency of cutting operations.
  • the frequency of cutting operations is generally directly related to the frequency of introduction of slats, because we generally seek to obtain plates having two thinned transverse edges.
  • the method according to the invention is very flexible, because to change the length of the plates manufactured, it just change the frequency of introduction slats.
  • the method according to the invention further comprises an intermediate step where an impression is made 12 from preform 5 opposite to where it is planned to introduce the batten 6 and / or a 12bis impression to the place where it is planned to introduce the slat 6.
  • the 12 or 12bis impression can be performed by any means, for example, following the teachings of U.S. Patents 2,991,824 or 4,781,558.
  • Figure 6 is shown part of a binder-based plate production line hydraulics implementing the method according to the invention.
  • a slat store 20 formed of a horizontal rectangular surface 21 from the corners from which rise vertically and parallel, four angular pieces 22, in the form of an angle iron and facing each other, so as to frame a stack of slats 23.
  • this slatted magazine 20 is such that it can store a high number of slats 23 (see also Figures 7 and 8).
  • the horizontal surface 21 of the slat magazine 20 is supported by feet 24.
  • first batten 23 At the level of the first batten 23, that is to say that located at the bottom of the stack, are arranged in parallel two cylinders 26, which are oriented so as to extract the first batten 23 from the stack by pushing and dragging it to an incline 27 consisting of a downwardly inclined surface 28 and a rim 29 at its lower part to retain the slat which has just been extracted and guide it later.
  • a cylinder 31 is arranged parallel to the longitudinal axis of the inclined plane 27, so that the actuation of this jack 31 can give an impulse to the slat which has just been extracted from the slat store 20.
  • the slat thus propelled can then move by sliding parallel to the longitudinal axis of the inclined plane 27, whose rim 29 guides it, towards a second inclined plane 32 which extends the first inclined plane 27, on the side transverse opposite to side 30.
  • This second inclined plane 32 also consists of an inclined surface 33 provided a rim 34 at its lower part. It includes in addition to a stop 35 at its end opposite to the jack 31, this stop being generally made up of a pneumatic shock absorber and being intended to put a end of the movement of the slat propelled by the jack 31.
  • the rim 34 is provided with openings 36 opposite which are arranged two cylinders 37 oriented so as to propel the batten positioned on the second inclined plane 32 upwards of the inclined surface 33.
  • the first inclined plane 27 and the second plane tilted 32 are supported by feet, respectively, 38 and 39.
  • a flat surface 40 is provided parallel to the surface 23, between the latter and the first inclined plane 27 to horizontally support a slat extracted from the slatted magazine 20 before its descent on the surface inclined 28 of the first inclined plane 27.
  • the height of feet 24, 35 and 36 is chosen so a slat positioned on the second inclined plane 32 is at a height lower than that of the preform 5.
  • the length of the second inclined plane 32 is at least equal to that of lath 23, i.e. at least equal to, and preferably greater than, the width of the preform 5.
  • the difference between the length of the slat and the width of the preform 5 makes it possible to grasp the batten and remove it once the plaster composition has hardened.
  • the production line according to the invention comprises usually electronic means that control its function and allow, if necessary, to enslave between them the implementations of different operations.
  • Electronic means provide that after the introduction of a slat under the preform by actuation of the jacks 27, the jack 31 is actuated to introduce a new batten on the second plane inclined 32, then the cylinders 26 are actuated to introduce another slat on the first inclined plane 27, and so on.
  • Electronic means can vary the frequency of these operations to reduce or increase the length of the plasterboard with edges thinnings produced.
  • the production line further includes a device making an impression 12.
  • the electronic means controlling the line of production according to the invention are then regulated with the electronic means controlling the device carrying out footprint 12, so that each slat is introduced under the hydraulic binder base plate of the side of preform 5 opposite to where it is located an imprint 12, as can be seen in FIG. 10.
  • the means 20 to 22 and 24 to 39 which have just been described can be combined into a device according to the invention.
  • the main advantage of such a device is that it can be installed near a manufacturing line classic hydraulic binder-based plates with which he can then cooperate in order to implements the method according to the invention.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
EP01830706A 2001-11-16 2001-11-16 Verfahren zum Herstellen von Platten aus hydraulischem Bindemittel mit sich verjüngenden Rändern sowie Fertigungsstrasse und Vorrichtung zur Herstellung derartiger Platten Withdrawn EP1321261A1 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP01830706A EP1321261A1 (de) 2001-11-16 2001-11-16 Verfahren zum Herstellen von Platten aus hydraulischem Bindemittel mit sich verjüngenden Rändern sowie Fertigungsstrasse und Vorrichtung zur Herstellung derartiger Platten
PCT/FR2002/003919 WO2003041930A1 (fr) 2001-11-16 2002-11-15 Procede de fabrication de plaques a bords amincis, a base de liants hydrauliques, ligne et dispositif pour la production de telles plaques
EP02791903A EP1448347A1 (de) 2001-11-16 2002-11-15 Verfahren zum herstellen von platten aus hydraulischem bindemittel mit sich verjüngenden rändern sowie fertigungsstrasse und vorrichtung zur herstellung derartiger platten

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP01830706A EP1321261A1 (de) 2001-11-16 2001-11-16 Verfahren zum Herstellen von Platten aus hydraulischem Bindemittel mit sich verjüngenden Rändern sowie Fertigungsstrasse und Vorrichtung zur Herstellung derartiger Platten

Publications (1)

Publication Number Publication Date
EP1321261A1 true EP1321261A1 (de) 2003-06-25

Family

ID=8184774

Family Applications (2)

Application Number Title Priority Date Filing Date
EP01830706A Withdrawn EP1321261A1 (de) 2001-11-16 2001-11-16 Verfahren zum Herstellen von Platten aus hydraulischem Bindemittel mit sich verjüngenden Rändern sowie Fertigungsstrasse und Vorrichtung zur Herstellung derartiger Platten
EP02791903A Withdrawn EP1448347A1 (de) 2001-11-16 2002-11-15 Verfahren zum herstellen von platten aus hydraulischem bindemittel mit sich verjüngenden rändern sowie fertigungsstrasse und vorrichtung zur herstellung derartiger platten

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP02791903A Withdrawn EP1448347A1 (de) 2001-11-16 2002-11-15 Verfahren zum herstellen von platten aus hydraulischem bindemittel mit sich verjüngenden rändern sowie fertigungsstrasse und vorrichtung zur herstellung derartiger platten

Country Status (2)

Country Link
EP (2) EP1321261A1 (de)
WO (1) WO2003041930A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2900860B1 (fr) 2006-05-10 2008-07-04 Lafarge Platres Procede de fabrication de plaques a base de liant hydraulique a quatre bords amincis, ligne de production de telles plaques

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2448422A1 (fr) * 1979-02-07 1980-09-05 Applic Ceramiques Et Machine fileuse perfectionnee pour la fabrication de poutrelles precontraintes
GB2050917A (en) * 1979-06-02 1981-01-14 Fontana L R Patterning pressed concrete blocks
US5851634A (en) * 1992-08-11 1998-12-22 E. Khashoggi Industries Hinges for highly inorganically filled composite materials

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2448422A1 (fr) * 1979-02-07 1980-09-05 Applic Ceramiques Et Machine fileuse perfectionnee pour la fabrication de poutrelles precontraintes
GB2050917A (en) * 1979-06-02 1981-01-14 Fontana L R Patterning pressed concrete blocks
US5851634A (en) * 1992-08-11 1998-12-22 E. Khashoggi Industries Hinges for highly inorganically filled composite materials

Also Published As

Publication number Publication date
EP1448347A1 (de) 2004-08-25
WO2003041930A1 (fr) 2003-05-22

Similar Documents

Publication Publication Date Title
EP3033223B1 (de) Verfahren und vorrichtung zur anbringung von verstärkungen an einem kartonverpackungszuschnitt
EP0160613A1 (de) Verfahren und Vorrichtung zur Herstellung von genuteten Holzlatten
EP0451592B1 (de) Verfahren und Vorrichtung zum Bilden von Stapeln von der Oberseite eines Stapels von Blättern in einer Maschine zur Herstellung von Verpackungen
EP1369213B1 (de) Vorrichtung zur Trennung Befestigungspunkte, die gestapelte Kartonbogen verbinden
FR2866370A1 (fr) Plaques a base de liant hydraulique a bords amincis, procede de fabrication de plaques a base de liant hydraulique et ligne de production de telles plaques, et procede de construction de second oeuvre
FR2493210A1 (fr) Procede et dispositif pour couper une structure complexe et allongee
EP1480800B1 (de) Verfahren zum herstellen von platten aus hydraulischem bindemittel, fertigungsstrasse zur herstellung derartiger platten und vorrichtung zum prägen
EP1382424A1 (de) Verfahren zum Herstellen von Platten aus hydraulischem Bindemittel mit sich verjüngenden Rändern sowie Fertigungsstrasse und Vorrichtung zur Herstellung derartiger Platten
FR2523895A1 (fr) Appareil pour diviser des blocs de beton aere
EP0037343B1 (de) Verfahren zum Herstellen eines Stapels, geeignet zum Bilden wenigstens einer ausziehbaren Sammelmappe, und Maschine zum Durchführen des Verfahrens
EP1321261A1 (de) Verfahren zum Herstellen von Platten aus hydraulischem Bindemittel mit sich verjüngenden Rändern sowie Fertigungsstrasse und Vorrichtung zur Herstellung derartiger Platten
EP0447416A1 (de) Verfahren und vorrichtung zur herstellung mehreckiger betonmasten o.dgl.
WO1992012835A2 (fr) Ligne de fabrication de palettes ou autre element destine a la manutention par chariot elevateur
FR2838370A1 (fr) Procede de fabrication de plaques de platre a quatre bords amincis
EP1361030B1 (de) Verfahren zum Herstellen von Platten aus hydraulischem Bindemittel sowie Fertigungsstrasse zur Herstellung derartiger Platten
EP1338393A1 (de) Vorrichtung zum Prägen von Vorformlingen aus hydraulischem Bindemittel sowie Herstellverfahren und Fertigungsstrasse zur Herstellung von Platten aus hydraulischem Bindemittel
FR2672001A1 (fr) Ligne de fabrication de palettes ou autre element destine a la manutention par chariot elevateur.
EP0298792B1 (de) Vorrichtung zum Aufbringen einer Schutzfolie auf einer Alveolarplatte
FR2640582A1 (fr) Procede d'habillage d'elements de boites montees et installation pour la mise en oeuvre de ce procede
EP1510315A1 (de) Platten aus hydraulischem Bindemittel, Verfahren zum Herstellen von Platten aus hydraulischem Bindemittel und Fertigungsstrasse zur Herstellung derartiger Platten
FR2900860A1 (fr) Procede de fabrication de plaques a base de liant hydraulique a quatre bords amincis, ligne de production de telles plaques
EP0448444A1 (de) Falt- und Leimmaschine für vorgeschnittene Zuschnitte, die sich für die Herstellung von Schachteln verschiedener Ausmasse anpassen lassen
FR3109575A1 (fr) Dispositif mécanique de mise en forme pour fabriquer des renforts structurels
FR2718424A1 (fr) Procédé et dispositif d'empilage de cahiers imprimés ou non en arrivée verticale.
CA2872893A1 (fr) Procede de fabrication d'un panneau multi-plis de composition variable

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Extension state: AL LT LV MK RO SI

AKX Designation fees paid
REG Reference to a national code

Ref country code: DE

Ref legal event code: 8566

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20031230