EP1480800B1 - Procede de fabrication de plaques a base de liant hydraulique, ligne de production de telles plaques et appareil pour la realisation d'une empreinte - Google Patents

Procede de fabrication de plaques a base de liant hydraulique, ligne de production de telles plaques et appareil pour la realisation d'une empreinte Download PDF

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Publication number
EP1480800B1
EP1480800B1 EP03732623.8A EP03732623A EP1480800B1 EP 1480800 B1 EP1480800 B1 EP 1480800B1 EP 03732623 A EP03732623 A EP 03732623A EP 1480800 B1 EP1480800 B1 EP 1480800B1
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EP
European Patent Office
Prior art keywords
preform
hydraulic binder
impression
pulleys
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.)
Expired - Lifetime
Application number
EP03732623.8A
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German (de)
English (en)
French (fr)
Other versions
EP1480800A2 (fr
Inventor
Paul Jallon
Michel Rigaudon
Jean-Louis Laurent
Jean Paul Solomut
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.)
Etex France Building Performance SA
Original Assignee
Siniat SA
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
Priority claimed from EP02290462A external-priority patent/EP1338393A1/fr
Priority claimed from EP02291132.5A external-priority patent/EP1361030B1/fr
Application filed by Siniat SA filed Critical Siniat SA
Priority to EP04027078.7A priority Critical patent/EP1510316B1/fr
Priority to DK04027078.7T priority patent/DK1510316T3/en
Priority to EP03732623.8A priority patent/EP1480800B1/fr
Publication of EP1480800A2 publication Critical patent/EP1480800A2/fr
Application granted granted Critical
Publication of EP1480800B1 publication Critical patent/EP1480800B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B28B11/14—Apparatus or processes for treating or working the shaped or preshaped articles for dividing shaped articles by cutting
    • B28B11/16—Apparatus or processes for treating or working the shaped or preshaped articles for dividing shaped articles by cutting for extrusion or for materials supplied in long webs
    • B28B11/166—Apparatus or processes for treating or working the shaped or preshaped articles for dividing shaped articles by cutting for extrusion or for materials supplied in long webs with devices for determining the correct cutting moment, e.g. measuring rollers or the like
    • 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
    • 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
    • B28B11/0863—Apparatus or processes for treating or working the shaped or preshaped articles for reshaping the surface, e.g. smoothing, roughening, corrugating, making screw-threads for profiling, e.g. making grooves
    • 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
    • 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
    • B28B5/00—Producing shaped articles from the material in moulds or on moulding surfaces, carried or formed by, in or on conveyors irrespective of the manner of shaping
    • B28B5/02—Producing shaped articles from the material in moulds or on moulding surfaces, carried or formed by, in or on conveyors irrespective of the manner of shaping on conveyors of the endless-belt or chain type
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/162—With control means responsive to replaceable or selectable information program

Definitions

  • the present invention relates to a method for manufacturing hydraulic binder-based plates, in particular plasterboard with thinned edges, a production line for such plates, and an apparatus, in particular for producing an impression in a preform with a hydraulic binder base, known from US-A-2,246,987 .
  • the plates are generally obtained by cutting a preform based on hydraulic binder at specific lengths.
  • a cutting system consisting of a wheel placed on the top of the preform and driven in rotation by the movement of the latter is used.
  • the wheel is graduated and coupled to a counter which actuates the cutting device once the desired length for the plate is reached.
  • the wheel and the meter are usually located at the downstream end of the production line, at a short distance from the cutting device, in order to avoid the phenomena of elongation or shrinkage of the preform.
  • the invention aims to propose an alternative to this wheel / counter system.
  • the invention relates to an apparatus, a use a method and a production line according to claims 1, 7, 8 and 12.
  • Such a method has the particular advantage of allowing the determination of the length of the plate at the time of forming the preform.
  • Such a method also has the advantage of being able to be used in the production of thin-edged hydraulic binder-based boards.
  • US Pat. No. 4,781,558 describes an apparatus intended for the manufacture of gypsum boards having depressions. It therefore proposes to make, on a preform intended to be cut to give plasterboard, recesses by means of a drum 34 having bumps 36 (see in particular FIG. figure 1 of this patent). The depth of the hollows is therefore determined by the size of the bumps. Thus, to change the depth and / or the shape of these recesses, it would be necessary to replace the drum 34 with another drum having bumps of different size and / or shape (s).
  • indentations 51A, 51B are made in a preform intended to be cut to give plasterboard, by means of figure 1 and column 3, lines 29 to 43 of this patent) of a strip 20 rotating around two rollers 21 and having a protuberance 25.
  • the preform is then cut in the middle of the impressions so as to produce plates with thinned edges.
  • the invention therefore also aims to solve the problem of making impressions in a preform while offering the ability to easily and quickly change the size and / or shape of these prints.
  • the invention makes it possible to produce, in a satisfactory manner, plates based on hydraulic binder with thinned edges.
  • a binder material 1 is poured onto a binder material 1 and, generally, it is covered by means of a second facing material 3.
  • the passage of the assembly under the binder plate 1 forming 4 gives a preform 5, which moves, supported by a conveyor belt 7, to the downstream zone of the line, where it is cut transversely by a cutting device 9, generally consisting of a roller provided with a knife ( figure 2 ), to give plates.
  • upstream and downstream refer to the direction of travel of the preform 5.
  • upstream zone is thus meant in the present description, that part of the production line located near the forming plate 4.
  • Downstream zone means that part of the production line situated near the cutting device 9.
  • the hydraulic binder composition preferably comprises plaster.
  • the facing materials 1 and 3 may consist of sheets of paper or cardboard, glass mats or any material known to those skilled in the art as being used as facing material.
  • Marking means 300 are provided, generally upstream of the forming plate 4, to produce at least one mark, preferably on the facing material 3 of the preform 5.
  • the mark is therefore generally made upstream of the forming plate 4, that is to say before the preform 5 is formed.
  • the mark may be produced by depositing a material such as an ink on the surface of the facing material, to make a stain, a line, or any sign.
  • the deposited material may or may not be visible to the null eye.
  • the dimensions of the mark can be very variable.
  • the mark may also be constituted by a relief or a hollow formed on the surface of the facing material.
  • the marking means 300 may thus consist of an ink-stamp part which is regularly moved back and forth in the direction of the facing material 3 illustrated by the double arrow B. When the piece forming a buffer between in contact with the facing material 3, it leaves a mark 301 on the face this material.
  • marking means 300 such as an encoder wheel coupled to an ink jet device for triggering a net anchor (indexing of the jet speed, depending on the speed of scrolling carton) at the desired periodicity, controlled by the skilled person or the operator.
  • detection means 302 disposed above the preform 5 can also be seen at a suitable place so that when a mark 301 passes beneath them, they can detect it.
  • These detection means 302 are of course chosen according to the type of the mark to be detected. They can be constituted by a photoelectric sensor.
  • a detection signal is sent to actuating means (not shown), which then send a signal of actuation to the cutting device 9, so that the latter cuts the preform 5 to give a plate.
  • additional detection means 303 are provided downstream of the marking means 300, preferably in the upstream zone, generally upstream of the forming plate 4.
  • These additional detection means 303 are generally of the same type as the detection means 302, since they must be able to detect the mark 301.
  • Additional actuation means are then also provided for, after receiving a detection signal from these additional detection means 303, sending an actuation signal to an apparatus for making an impression or reservation in the preform 5.
  • This additional detection of the mark 301 for producing an impression therefore takes place before the detection of the mark 301 of step 2) of the process that triggers the cutting of the preform 5.
  • the preferred apparatus for producing impressions is schematically represented on the figure 3 .
  • It comprises a frame 101 which is H-shaped, but which the person skilled in the art could easily give many other forms.
  • first two pulleys 102 and 103 On this frame 101 are supported, to a first. end 104, first two pulleys 102 and 103 and, at a second end 107, two second pulleys 105 and 106.
  • the first pulleys 102,103 are in a first plane, the second pulleys 105,106 in a second plane and the first plane is parallel to the second plane.
  • the pulley 102 and the pulley 105 are located opposite each other and identical.
  • the pulley 103 and the pulley 106 are also located opposite each other and identical.
  • the pulleys 102, 103, 105 and 106 can turn on themselves.
  • a first transmission belt 108 surrounds the first pulleys 102,103 and a second transmission belt 109 surrounds the second pulleys 105,106.
  • the transmission belts 108 and 109 are identical. They are connected to one another by at least one thread 111.
  • This wire 111 is removably attached to the first and second belts 108, 109 and extends between these belts 108, 109 so that its longitudinal axis is parallel to the axis of rotation of the pulleys.
  • one of the pulleys for example the pulley 102 rotates, it drives the transmission belt 108 which itself drives the other pulley located in the same plane as it (the pulley 103) and the wire 111.
  • the latter then moves according to the trajectory defined, on the one hand, by the loop constituted by the belt 108 and, on the other hand, as it is connected to the second belt 109, also by the loop formed by the latter .
  • the symmetry of the apparatus according to the invention therefore allows the axis of the wire 111 to move in an ellipse, its axis remaining constantly parallel to that of the pulleys.
  • the apparatus may also comprise means for driving in rotation at least one of the pulleys. These means may possibly lead to two pulleys by means of the shaft on which they are mounted.
  • the wire 111 generally has a cylindrical shape, but it can take a large number of forms including parallelepipedal, prismatic, etc.
  • a plurality of wires 111 are arranged parallel to one another along the transmission belts 108 and 109 (see FIG. Figure 3 ).
  • the pulleys are preferably gear wheels and the chain transmission belts can cooperate with these toothed wheels.
  • the fixing of the wires can then be carried out as illustrated by the figure 4 .
  • the support piece 113 is visible on the Figures 4,6 and 7 .
  • It comprises the bore 118 adapted to cooperate with the corresponding portion 117 of the pin-thread pin 114 and a bore 121 opening into the bore 118.
  • This bore 121 is threaded so that it can be screwed in a pressure screw 122 for compressing the wire 111 present inside the bore 118 to hold it firmly (see figure 4 ).
  • pin-wire axis 114 is mounted so that its head 119 is on the inside of the chain, that is to say facing the other chain.
  • the support member 113 preferably comprises two pairs (bore 118, threaded bore 121), the spacing between the axes of the bores 118 corresponding to the normal spacing between the axes of the rollers of a chain link 112, so that that two son 111 can be maintained on the same link 112, as can be deduced from Figures 6 and 7 .
  • the distance between the transmission belts of this apparatus is at least equal to the width of the preform. 5.
  • these belts and the pulleys are located on each longitudinal side of the preform.
  • the apparatus is suitably arranged so that, when its transmission belts rotate, its or thread (s) 111 (s) creates an imprint in the preform 5.
  • the apparatus may be above the preform 5, in which case it creates the impression 12 or under the preform 5, in which case it creates the imprint 12bis visible on the figure 10 .
  • the apparatus according to the invention is located above the preform 5.
  • the operation of the motor is adjusted so that the belts move at the same speed as the preform.
  • the impression position 12 is not directly related to that of a mark 301, so that an imprint 12 may or may not be performed on a mark 301.
  • the position of the impression 12bis is not directly linked to that of a mark 301, so that an impression 12bis may or may not be made under a mark 301.
  • the position of the mark 301 and that of the imprint are advantageously chosen so that the preform 5 is cut at an imprint 12.
  • Plates 9a having transverse thinned edges 10 visible on the surface are thus obtained. figure 8 .
  • the cutting device can be set to cut the preform opposite the location where this impression 12a was made (ie say on the other side of the preform).
  • the preform is preferably cut about in the middle of the imprint 12 or 12bis.
  • the additional actuation means are able, after receiving a detection signal from the additional detection means 303, to send an actuation signal to a slat insertion device under the preform 5.
  • the additional detection means 303 and the electronic means thus make it possible to introduce the slat 6 under the preform 5, after the detection of the mark 301, by sending an actuation signal to a lath introducing device 6 under the preform 5.
  • the position of the mark 301 is not directly related to the introduction of the slat 6, so that a slat 6 may or may not be introduced just under a mark 301.
  • transverse edges means in this presentation the edges perpendicular to the direction of movement of the conveyor belt in a production line of hydraulic binder based plates. Such transverse edges are also called “plate ends”.
  • a slat 6 is inserted between the preform 5 and the beginning of the conveyor belt 7.
  • the distance between the forming plate 4 and the beginning of the conveyor belt 7 is such that the preform 5 has not yet had the time to harden substantially and still has great plasticity.
  • the introduction is made from such that the longitudinal axis of the slat 6 is substantially perpendicular to the direction of movement of the conveyor belt 7.
  • the slat 6 is then driven by the conveyor belt 7, just like the preform 5.
  • the hydraulic setting and hardening of the plaster composition 2 is then performed throughout the movement of the preform 5, designated by the arrows A.
  • the withdrawal of the slat 6 takes place before the cut of the preform 5.
  • the hardness of the preform 5 is sufficient so that the slat 6 can be removed without deforming the preform 5 and without the plaster composition 2 filling the space or thinning 8 ( figure 2 ) left by the withdrawal of the lath 6.
  • the removal of the slat 6 can be carried out in any appropriate manner. For example, when the length of the slat 6 is greater than the width of the preform 5, the slat 6 protrudes with respect to the preform 5, and can then be removed quickly in a direction substantially perpendicular to the direction of travel of the conveyor belt 7 and moving away from it. This retraction action is illustrated by arrow B on the figure 1 .
  • the withdrawal of the slat 6 can also occur by the fall of the slat 6 in the space between two rollers constituting the conveyor belt system, which, in general, is not continuous throughout the production line, but is formed by several carpets driven by rollers between which there are free spaces.
  • the preform 5 continues to move, still driven by the conveyor belt 7 and the hardening of the plaster composition 2 continues.
  • the mark 301 is then detected, in the downstream zone of the production line, by the additional detection means 302 which then trigger the operation of the cutting device 9.
  • the position of the mark 301 and that of the thinning 8 are advantageously chosen so that the preform 5 is cut at the level of the thinning 8, preferably about the middle of this thinning.
  • Plates 9a having transverse thinned edges 10 visible on the surface are thus obtained.
  • figure 8 whose lengths are defined by the distance traveled by the conveyor belt between two cutting operations, that is to say, generally by the distance traveled by the conveyor belt between two consecutive thinning 8.
  • This plate 9bis thus has two thinned transverse edges 10.
  • each thinning 8 depends on the dimensions of the batten 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 approximately equal to the width of the preform 5 (possibly less the width of the longitudinal strips "tape” present if necessary), but generally higher in order to be able to seize it to remove it from below the preform 5.
  • the slat 6 is longer than the width of the preform 5, so as to project relative thereto, which can facilitate its withdrawal.
  • the constituent material of the slats 6 does not matter, as long as it allows these slats to withstand the weight of the preform thickness 5 which is above each slat 6. This can therefore be a plastic material, wood , metal, etc. having good wear resistance and stability over time.
  • the method which has just been described comes in addition to a known method for manufacturing plaster having two longitudinal edges thinned.
  • the latter generally provides for the introduction of a strip, generally made of plastic material, generally called “tape", on each longitudinal side of the conveyor belt 7.
  • Tape a strip, generally made of plastic material, generally called "tape"
  • Such a method is described for example in the European patent application no. 482,810 .
  • the length of the plasterboard manufactured depends of course on the speed of movement of the conveyor belt and the frequency of cutting operations.
  • the frequency of the cutting operations is generally directly related to the frequency of introduction of the slats, since it is generally sought to obtain slabs having two transverse edges thinned, and the slats introduction frequency is a function of the detection of the marks. 301 and therefore the frequency of marking operations.
  • the method according to the invention comprises both the production of a print 12 or 12bis in the preform 5 and the introduction of a batten 6 under the preform 5.
  • the additional actuation means are therefore capable, after detection of a mark 301 by the additional detection means 303, to send an actuation signal to the means for producing the imprint 12 or 12bis and a signal of actuation the lath introduction device 6, to introduce a slat 6 under the preform, to let the grip hydraulic take place and remove the batten 6, as explained previously.
  • the steps of introducing a slat 6 under the preform 5, and then hydraulically setting the hydraulic binder composition and removing the slat 6 take place after the step of producing the impression in the preform 5 .
  • impression is preferably made either opposite the place where it is intended to introduce the slat 6 (impression 12), or where it is intended to introduce this slat 6 (imprint 12 bis ).
  • the hydraulic binder-based plate production line according to the invention is preferably a thin-edged hydraulic binder plate production line.
  • Such a line may comprise a device for introducing laths and / or means for producing impressions.
  • a tapered hydraulic binder plate production line provided with means or a device for introducing slats 23 under the preform 5 will first be described in detail with reference to figures 1 , 2 and 8 to 15 .
  • the upstream zone of a hydraulic binder-based plate production line comprises a device for the introduction of laths under the preform.
  • This device comprises a slatted magazine 20 formed of a rectangular horizontal surface 21 from the corners of which rise vertically and parallel, four angular pieces 22, shaped angle and turned towards each other, so as to frame a pile of slats 23.
  • this slat magazine 20 is such that it can store a large number of slats 23 (see also Figures 12 and 13 ).
  • the horizontal surface 21 of the lath magazine 20 is supported by feet 24.
  • first slat 23 At the level of the first slat 23, that is to say that located at the bottom of the stack, are arranged parallel two cylinders 26, which are oriented so as to extract the first slat 23 from the stack by pushing it and sliding it towards an inclined plane 27 consisting of an inclined surface 28 downwards and a rim 29 at its lower part to retain the slat which has just been extracted and guide it later.
  • a jack 31 is arranged parallel to the longitudinal axis of the inclined plane 27, so that the actuation of this jack 31 can give an impetus to the slat which has just been extracted from the slatted magazine 20.
  • the slat thus propelled can then move by sliding parallel to the longitudinal axis of the inclined plane 27, the flange 29 the guide , towards a second inclined plane 32 which extends the first inclined plane 27, the transverse side opposite the side 30.
  • This second inclined plane 32 is also constituted by an inclined surface 33 provided with a flange 34 at its lower part. It further comprises a stop 35 at its end opposite to the jack 3i, this stop being generally constituted by a pneumatic damper and being intended to put an end to the movement of the batten propelled by the jack 31.
  • the flange 34 is provided with openings 36 in front of which are arranged two jacks 37 oriented so as to propel the lath positioned on the second inclined plane 32 towards the top of the inclined surface 33.
  • the first inclined plane 27 and the second inclined plane 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 for horizontally supporting a slat extracted from the slatted magazine 20 before its descent on the inclined surface 28 of the first inclined plane 27.
  • the height of the feet 24, 35 and 36 is chosen such that a slat positioned on the second inclined plane 32 is at a height less than that of the preform 5.
  • the length of the second inclined plane 32 is at least equal to that of the slat 23, that is to say 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 slat and remove it once the plaster composition has hardened.
  • the production line according to the invention generally comprises electronic means which control its operation and allow, where appropriate, to enslave between them the implementations of different operations.
  • the electronic means are able to send an actuation signal to the lath introduction device 23, after receiving a detection signal from the additional detection means 303.
  • the frequency of the introduction of the slats under the preform is determined by the frequency of making marks 301 on the facing material 3 of the preform 5.
  • a thin-tapered hydraulic binder plate production line equipped with a fingerprinting apparatus as generally described above will now be described.
  • the figure 16 represents the upstream zone of such a line comprising a variant of the apparatus for producing impressions, which is seen in profile in this figure.
  • the apparatus comprises four first gearwheels 201,202,203,204 supported by a frame 205 and surrounded by a chain 206 constituted by links, some of which, the links 207, each support 2 wires, as indicated in connection with the figure 2 .
  • This apparatus is symmetrical with respect to a vertical plane aligned with the direction of movement of the preform 5.
  • the wires held by the links 207 extend transversely with respect to the preform 5 to a second chain, identical to the chain 206, and which surrounds second gearwheels identical to the first gearwheels 201,202,203,204.
  • the apparatus is provided with an electric motor 209 driving in rotation by means of a belt 211 the shaft 210 on which the wheel 203 and its symmetrical wheel are mounted.
  • the rotation of these wheels causes that of the chain 206 in the direction indicated by the arrow D.
  • This preform 5 is obtained in known manner by introducing the hydraulic binder paste according to the arrow E between the first facing material 2 and the second facing material 3 and passing the assembly between the upper platen 214 and lower 215 forming of the device.
  • the distance between the gears 201,202,203,204 and their symmetrical wheels is at least equal to that of the preform 5 so that these gears do not touch this preform 5.
  • the apparatus is set at a suitable height so that, during operation of the production line, the movement of the chain 206 resulting in that of the son connected to the links 207, these son pass into the forming plate, that is to say between the trays 214 and 215 and project downwards with respect to the upper plate 214.
  • the space occupied by these wires between the upper plate 114 and the second facing material 3 is then reflected at this point by a thinning of the thickness of the preform 5.
  • the electronic means of the production line are able to send an actuation signal to this apparatus, so that it carries out each imprint after receiving a detection signal from the additional detection means 303. .
  • the means for producing impressions cooperate with the slats introduction device under the preform 5 (consisting of the means 20 to 22 and 24 to 39 described above in FIG. relationship with Figures 11 to 15 ).
  • the additional actuation means are therefore capable, after detection of a mark 301 by the additional detection means 303, to send an actuation signal to the means for producing the imprint 12 or 12bis and a signal of FIG. actuation at the slat introduction device 6.
  • This variant is then advantageously disposed upstream of the slats introduction device.
  • the electronic means then preferably calculate the precise moment at which they must send the actuation signals to the fingerprinting apparatus and to the batten introduction device, so as to synchronize their operations, so that the batten is introduced. in a recess 12a on the underside of the preform 5, or, if the recess 12 is on the upper face of the preform 5, substantially opposite this recess 12.
  • the introduction of slats 23 under the preform 5 is operated in part by the apparatus for the realization of fingerprints.
  • this mechanical link between the fingerprinting apparatus and the slat introduction device can be replaced by a combined apparatus combining both fingerprinting means and batten introduction means.
  • the chain 206 is then provided with a thrust pin 216 which is fixed on the outer side of the chain 206, that is to say the one opposite to that where the son are located.
  • This thrust pin 216 has the function of hitting and moving the pusher 217 during the rotation of the chain 206. It can be fixed on a link of the chain 206 for example instead of a bearing axis of the roller of this link .
  • a pusher 217 The shape of a pusher 217 is more visible on the Figures 17 and 18 .
  • This pusher comprises a ruler-shaped elongated portion 218 provided at one end with a right-angled triangle-shaped portion 219 traversed by an axis 220 protruding from both sides of the portion 219. The vertex of the right-angled triangle is cut to give a face 221 parallel to the axis of the rule-shaped portion 218.
  • the pusher 217 can occupy two positions. In its initial position (shown in dotted lines), it rests on the plate 215 and is turned towards the ground, so that its axis 220 is arranged transversely with respect to the preform 5 and its face 221 is located at the lower part of the inclined surface 33, in the opening 36 of the flange 34.
  • the pusher 217 When the pusher 217 is hit by the pushing finger 216, it moves up the inclined surface 33. In doing so, it pushes the batten 23 which then comes to be inserted between the preform 5 and the conveyor belt 7.
  • the pushing finger 216 on the chain 206 is at a distance, relative to the threads held by the links 207, such that the slat 23 is introduced substantially opposite the location of the preform 5 where said threads come from form the imprint. This has the consequence that the movement of material caused by the introduction of the slat 23 is at least partially compensated by the imprint. It follows that the preform does not have a bump at the opposite point to where the slat 23 was introduced. This means that after removal of this slat 23, the thinning obtained on the underside of the preform 5 does not match any bump on the top of the preform 5.
  • the pusher 217 moved by the pushing finger 216 arrives in a second position ending in a receptacle, visible on the Figures 17 and 18 , and which is formed by two arcuate pieces 222 fixed by their upper ends on either side of the outer end 225 of the rod 223 of a jack 224.
  • Each side of the axis 220 of the pusher 217 is received in an arcuate piece 222 and the portions 219 and 218 of the pusher 217 can be inserted into the space formed between the arcuate pieces 222, under the rod 223 of the jack 224.
  • the rod 223 of the jack 224 is output, to receive the pusher 217.
  • the dimensions of the pusher 217 are chosen so that it remains above the inclined surface 33.
  • the cylinder 224 can be fixed to the frame 205 of the device, its location and its dimensions being determined according to the pusher 217 with which it must cooperate.
  • the actuator 224 therefore has the function of returning the pusher 217 to its initial position. Its rod 223 is normally in the extended position, waiting to receive the pusher 217.
  • each of the chains being provided with a thrust finger 216 each cooperating with a jack 224, and in a synchronized manner.
  • the electronic and pneumatic (or possibly hydraulic) means of the production line control the operation of the apparatus for producing the impressions and the device for introducing the slats under the preform (constituted by the means 20 to 22 and 24 to 39 described above), so that once the pusher 117 returned to its initial position and the rod 223 of the cylinder 224 again output, a new slat 23 can be slid on the inclined plane 33.
  • the actuation of the jack 224 is determined by the detection for example, by means of a photoelectric sensor, the passage of a pin or finger fixed at a suitable place on the chain 206, for example the same the pushing finger 216, this pin acting as a flag, that is to say when it is detected by the photoelectric sensor disposed at a suitable place on the production line or the apparatus, the electronic means control the return of the rod 223 of the cylinder 224 in the body of the cylinder, this return causing, as explained above, the return of the pusher 217 to its initial position. Limit sensors of the cylinder 224, can then, once the rod 223 retracted, cause a new actuation of the cylinder 224 to out its rod 223, which drops the pusher 217 in its initial position.
  • the frame 205 of the apparatus can, as is apparent from the figure 16 to be integral with the trays 214 and 215. It follows that the device can be used in place of a flat forming or a master roll that is used conventionally.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
  • Making Paper Articles (AREA)
  • Producing Shaped Articles From Materials (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Control Of Cutting Processes (AREA)
EP03732623.8A 2002-02-26 2003-02-25 Procede de fabrication de plaques a base de liant hydraulique, ligne de production de telles plaques et appareil pour la realisation d'une empreinte Expired - Lifetime EP1480800B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP04027078.7A EP1510316B1 (fr) 2002-02-26 2003-02-25 Procédé de fabrication de plaques à base de liant hydraulique, ligne de production de telles plaques et appareil pour la réalisation d'une empreinte
DK04027078.7T DK1510316T3 (en) 2002-02-26 2003-02-25 PROCEDURE FOR MANUFACTURING PLATES BASED ON HYDRAULIC BINDING MATERIAL, PRODUCTION LINE FOR MANUFACTURING SUCH PLATES AND APPARATUS FOR PRINTING
EP03732623.8A EP1480800B1 (fr) 2002-02-26 2003-02-25 Procede de fabrication de plaques a base de liant hydraulique, ligne de production de telles plaques et appareil pour la realisation d'une empreinte

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
EP02290462A EP1338393A1 (fr) 2002-02-26 2002-02-26 Appareil pour la réalisation d'une empreinte dans une preforme à base de liant hydraulique, procédé de fabrication de plaques à base de liant hydraulique et ligne de production de telles plaques
EP02290462 2002-02-26
EP02291132 2002-05-06
EP02291132.5A EP1361030B1 (fr) 2002-05-06 2002-05-06 Procédé de fabrication de plaques à base de liant hydraulique ainsi qu'une ligne de production de telles plaques
PCT/FR2003/000606 WO2003072326A2 (fr) 2002-02-26 2003-02-25 Procédé de fabrication de plaques a base de liant hydraulique, ligne de production de telles plaques et appareil pour la réalisation d'une empreinte
EP03732623.8A EP1480800B1 (fr) 2002-02-26 2003-02-25 Procede de fabrication de plaques a base de liant hydraulique, ligne de production de telles plaques et appareil pour la realisation d'une empreinte

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP04027078.7A Division EP1510316B1 (fr) 2002-02-26 2003-02-25 Procédé de fabrication de plaques à base de liant hydraulique, ligne de production de telles plaques et appareil pour la réalisation d'une empreinte
EP04027078.7A Division-Into EP1510316B1 (fr) 2002-02-26 2003-02-25 Procédé de fabrication de plaques à base de liant hydraulique, ligne de production de telles plaques et appareil pour la réalisation d'une empreinte

Publications (2)

Publication Number Publication Date
EP1480800A2 EP1480800A2 (fr) 2004-12-01
EP1480800B1 true EP1480800B1 (fr) 2015-07-08

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ID=27767033

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EP04027078.7A Expired - Lifetime EP1510316B1 (fr) 2002-02-26 2003-02-25 Procédé de fabrication de plaques à base de liant hydraulique, ligne de production de telles plaques et appareil pour la réalisation d'une empreinte
EP03732623.8A Expired - Lifetime EP1480800B1 (fr) 2002-02-26 2003-02-25 Procede de fabrication de plaques a base de liant hydraulique, ligne de production de telles plaques et appareil pour la realisation d'une empreinte

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EP04027078.7A Expired - Lifetime EP1510316B1 (fr) 2002-02-26 2003-02-25 Procédé de fabrication de plaques à base de liant hydraulique, ligne de production de telles plaques et appareil pour la réalisation d'une empreinte

Country Status (19)

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US (2) US7790090B2 (zh)
EP (2) EP1510316B1 (zh)
JP (2) JP2005525243A (zh)
KR (2) KR20040093071A (zh)
CN (1) CN100411839C (zh)
AR (1) AR038609A1 (zh)
BR (1) BRPI0308074B1 (zh)
CA (1) CA2476497C (zh)
CO (1) CO5601040A2 (zh)
DK (2) DK1510316T3 (zh)
ES (2) ES2549680T3 (zh)
IL (4) IL163517A0 (zh)
MX (1) MXPA04008186A (zh)
NO (1) NO20044058L (zh)
NZ (2) NZ534531A (zh)
PL (1) PL202026B1 (zh)
RU (1) RU2313452C2 (zh)
WO (1) WO2003072326A2 (zh)
ZA (1) ZA200406341B (zh)

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PL202026B1 (pl) * 2002-02-26 2009-05-29 Lafarge Platres Sposób wytwarzania płyt na bazie spoiwa hydraulicznego, linia produkcyjna do wytwarzania takich płyt i urządzenie w szczególności do wykonania odcisku oraz zastosowanie takiego urządzenia w linii produkcyjnej
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FR2838370B1 (fr) * 2002-04-10 2004-05-28 Lafarge Platres Procede de fabrication de plaques de platre a quatre bords amincis
FR2839275B1 (fr) 2002-05-02 2004-06-04 Lafarge Platres Procede et dispositif pour fabriquer des plaques de platre presentant quatre bords amincis
ES2659388T3 (es) 2002-05-06 2018-03-15 Siniat Procedimiento de fabricación de placas a base de aglomerante hidráulico y instalación de producción de tales placas
EP1382424A1 (fr) 2002-07-19 2004-01-21 Lafarge Platres Procédé de fabrication de plaques à bords amincis, à base de liants hydrauliques, ligne et dispositif pour la production de telles plaques
US7223311B2 (en) 2002-10-02 2007-05-29 Conboy John S Method and apparatus for fabricating gypsum board
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Also Published As

Publication number Publication date
AU2003239650A1 (en) 2003-09-09
DK1510316T3 (en) 2017-03-13
NO20044058L (no) 2004-09-24
KR20090089479A (ko) 2009-08-21
BR0308074A (pt) 2004-12-07
JP2005525243A (ja) 2005-08-25
CN1638930A (zh) 2005-07-13
NZ534531A (en) 2007-05-31
EP1510316A2 (fr) 2005-03-02
ES2618522T3 (es) 2017-06-21
KR20040093071A (ko) 2004-11-04
PL202026B1 (pl) 2009-05-29
CO5601040A2 (es) 2006-01-31
AR038609A1 (es) 2005-01-19
NZ552217A (en) 2008-07-31
BRPI0308074B1 (pt) 2016-12-27
ZA200406341B (en) 2005-04-26
RU2004128450A (ru) 2005-08-10
IL163517A (en) 2007-03-08
EP1510316A3 (fr) 2007-01-10
WO2003072326A3 (fr) 2004-03-04
DK1480800T3 (en) 2015-10-19
US20050139052A1 (en) 2005-06-30
EP1510316B1 (fr) 2016-12-07
EP1480800A2 (fr) 2004-12-01
CA2476497C (en) 2011-04-19
KR100960605B1 (ko) 2010-06-07
CN100411839C (zh) 2008-08-20
JP2009113497A (ja) 2009-05-28
IL179895A (en) 2010-12-30
US7651327B2 (en) 2010-01-26
IL163517A0 (en) 2005-12-18
US20050127545A1 (en) 2005-06-16
RU2313452C2 (ru) 2007-12-27
PL370532A1 (en) 2005-05-30
IL179895A0 (en) 2007-05-15
ES2549680T3 (es) 2015-10-30
MXPA04008186A (es) 2004-11-26
US7790090B2 (en) 2010-09-07
CA2476497A1 (en) 2003-09-04
WO2003072326A2 (fr) 2003-09-04

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