EP0244035B1 - Procédé et dispositif pour obtenir des lignes de marquage sur une nappe de fibres minérales contenant un liant - Google Patents

Procédé et dispositif pour obtenir des lignes de marquage sur une nappe de fibres minérales contenant un liant Download PDF

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Publication number
EP0244035B1
EP0244035B1 EP87200792A EP87200792A EP0244035B1 EP 0244035 B1 EP0244035 B1 EP 0244035B1 EP 87200792 A EP87200792 A EP 87200792A EP 87200792 A EP87200792 A EP 87200792A EP 0244035 B1 EP0244035 B1 EP 0244035B1
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EP
European Patent Office
Prior art keywords
heating
roll
fibre web
mineral fibre
roller
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
EP87200792A
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German (de)
English (en)
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EP0244035A1 (fr
EP0244035B2 (fr
Inventor
Friedrich Kaufmann
Horst-Werner Schlossherr
Egon Zinn
Reinhard Stoyke
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Saint Gobain Isover SA France
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Saint Gobain Isover SA France
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Application filed by Saint Gobain Isover SA France filed Critical Saint Gobain Isover SA France
Priority to AT87200792T priority Critical patent/ATE68418T1/de
Publication of EP0244035A1 publication Critical patent/EP0244035A1/fr
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
    • E04D13/16—Insulating devices or arrangements in so far as the roof covering is concerned, e.g. characterised by the material or composition of the roof insulating material or its integration in the roof structure
    • E04D13/1606—Insulation of the roof covering characterised by its integration in the roof structure
    • E04D13/1612—Insulation of the roof covering characterised by its integration in the roof structure the roof structure comprising a supporting framework of roof purlins or rafters
    • E04D13/1625—Insulation of the roof covering characterised by its integration in the roof structure the roof structure comprising a supporting framework of roof purlins or rafters with means for supporting the insulating material between the purlins or rafters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44B—MACHINES, APPARATUS OR TOOLS FOR ARTISTIC WORK, e.g. FOR SCULPTURING, GUILLOCHING, CARVING, BRANDING, INLAYING
    • B44B5/00—Machines or apparatus for embossing decorations or marks, e.g. embossing coins
    • B44B5/02—Dies; Accessories
    • B44B5/028—Heated dies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44B—MACHINES, APPARATUS OR TOOLS FOR ARTISTIC WORK, e.g. FOR SCULPTURING, GUILLOCHING, CARVING, BRANDING, INLAYING
    • B44B7/00—Machines, apparatus or hand tools for branding, e.g. using radiant energy such as laser beams
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
    • E04B1/7654—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only comprising an insulating layer, disposed between two longitudinal supporting elements, e.g. to insulate ceilings
    • E04B1/7658—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only comprising an insulating layer, disposed between two longitudinal supporting elements, e.g. to insulate ceilings comprising fiber insulation, e.g. as panels or loose filled fibres
    • E04B1/7662—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only comprising an insulating layer, disposed between two longitudinal supporting elements, e.g. to insulate ceilings comprising fiber insulation, e.g. as panels or loose filled fibres comprising fiber blankets or batts
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
    • E04D13/16—Insulating devices or arrangements in so far as the roof covering is concerned, e.g. characterised by the material or composition of the roof insulating material or its integration in the roof structure
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B2001/741—Insulation elements with markings, e.g. identification or cutting template

Definitions

  • the invention relates to a method for applying marking lines to a mineral fiber web containing binder, according to the preamble of claim 1.
  • EP-A-0 10 1 376 (DE-A-32 29 601).
  • the marking lines to be applied there run in the longitudinal direction of the mineral fiber web, that is to say in its transport or production direction.
  • a penetration marking is generated in such a way that a sharply focused flame or a sharply focused hot air jet with a temperature of, for example, 600 ° C. is directed onto the surface of the mineral fiber web, which in its core area, the binder on the surface of the mineral fiber web is heated to its decomposition temperature and thus discolored.
  • a marking line running parallel to the edge in the longitudinal direction of the web it is therefore only necessary to arrange a corresponding hot air nozzle or flame lance above the running mineral fiber web.
  • this heating device in the form of a roller does not serve to apply marking lines, but rather to produce tack points penetrating deeply into the material of the mineral fiber web by locally softening the mineral fibers and thus welding them together.
  • the circumferential surface of the roller has rows of openings through which hot gas at a high temperature usually emerges in a lance shape up to 1000 ° C.
  • the peripheral surface of the roller lies on the surface of the mineral fiber web and the roller rotates at a speed which corresponds to the transport speed of the mineral fiber web.
  • a hot gas outlet through a row of holes is only permitted if it lies in the region of the lower vertex of the roller, so that the hot gas lances into the mineral fiber web from each opening and forms tack points.
  • the depth of penetration can be further promoted by the negative pressure generated on the opposite side of the mineral fiber web.
  • Such a device is not used to apply marking lines and is also not suitable for generating marking lines which practically do not influence the behavior of the mineral fiber material at the marking point.
  • the large penetration depth desired in the known case can be reduced by throttling the hot gas supply, but it is significant in any case if so much energy is to be introduced by a local hot gas flow during the contact time that a rich discoloration results.
  • the lateral limitation of the area of action of the hot gas is difficult to control, especially since the action takes place in the course of the rotation of the roller and thus with a changing direction.
  • lateral flow portions play a role, which in the edge region of the marking still partially decompose the binder and thus lead to an unsharp boundary of the marking.
  • a roller as the heating device.
  • the peripheral surface of the roller is formed by several radially adjustable segments, in each of which a heating strip running parallel to the axis of the roller is arranged. These are provided with axially parallel heating strips distributed on the circumference
  • the roller does not serve to apply marking lines to a binder-containing mineral fiber web, but rather to weld two thin thermoplastic plastic films to one another in strip-shaped areas running transversely to their direction of transport, the circumferential speed and thus the distance between the strip-shaped ones being possible due to the radial adjustability of the segments during operation Welding zones is changeable.
  • the two plastic films lie on top of one another and are guided together over the roller, so that they set the roller in rotation as a result of their transport movement due to friction.
  • the heat transfer from the respective heating strip to the foils must be so great that the foil lying directly on the roller is melted in the area of the heating strip and the other foil supported by a counter roller is at least melted, so that a permanent weld connection is created.
  • This known film welding device is not suitable for applying marking lines to a mineral fiber web which have practically no effect on the properties of the fiber material. Because when marking lines are applied to a mineral fiber web, two thin, less compressible and smooth surface foils should not be welded together, but rather a relatively thick mineral fiber web made of a material that is easy to compress and has no closed surface and that only has a heat input limited to its upper layers exposed to the extent that clearly recognizable marking lines are formed as a result of the decomposition and discoloration of the binder caused by the heating.
  • the object of the invention is to provide a method and a device which allow the application of marking lines running transversely to the side edges on a surface of a mineral fiber web in the simplest and most reliable manner possible enable and with a low penetration depth of the decomposition phenomena enable the application of clearly delimited marking lines at exact and constant distances from each other.
  • the roller can be rotated at a peripheral speed which deviates slightly from the transport speed of the mineral fiber web, in order to compensate for such small inaccuracies due to the contact conditions between the roller and the mineral fiber web.
  • the roller according to claim 2 is pressed into the surface of the mineral fiber web to form a trough.
  • the accompanying System pressure results in an improvement in the conductive heat transfer from the heating zone to the mineral fibers.
  • the trough formation associated with the indentation results in a prolongation of the contact time between the heating zone and mineral fibers and thus also an improvement in the heat transfer.
  • the heat transfer can thus be adapted to the need for the formation of a clean marking without excessive heat input into the mineral fiber web: at a very slow transport speed, the roller is only slightly pressed and thus the contact pressure and the contact path are reduced, so that the desired heat input takes place with regard to the relatively long contact time available at low transport speed, while at high transport speed the heat transfer in the short time available is increased accordingly by increasing the contact pressure and lengthening the contact path.
  • the heat input into the mineral fiber web can also be completely or additionally influenced by controlling the temperature of the heating zones.
  • the thermal load on the roller on the one hand and the thermal load on the mineral fiber web at the point of contact with the heating zones on the other hand there is a relatively narrow optimum temperature range which should be maintained as far as possible.
  • the different setting of the penetration depth of the roller into the surface of the mineral fiber web enables a corresponding adjustment of the heat input without the temperature of the heating zones having to leave the optimal operating range.
  • the measure of claim 4 also enables a considerable simplification of the structural design of a device required to carry out the method, since a rotary drive can be omitted for operation and at most a simple rotary drive is required for preheating the roller in order to ensure uniform heating to ensure the heating zones distributed over the circumference of the roller.
  • the measure of claim 5 results in broken, so to speak broken lines. These generally serve their purpose, and make it possible to work with individual, shorter, spaced-apart heating zones which, with regard to their smaller longitudinal expansion, avoid problems with addition of the thermal expansion in the longitudinal direction. In addition, the energy consumption is reduced and any impairment of the material consistency due to tensile or compressive loading of the fibers in the roll is avoided by partially completely uninfluenced material.
  • a device which is particularly suitable for carrying out the method according to the invention is characterized in detail by the characterizing features of claim 7.
  • Heating rods form a particularly favorable constructive possibility for forming the heating zones required according to the method.
  • Straight heating rods can be used to form straight line markings; however, other markings such as grids, monograms or the like can also be produced if the heating rods are shaped in accordance with the marking contour desired in each case.
  • the measures of claim 8 ensure that energy losses due to heat radiation or heat conduction from the heating rods are minimized, while at the same time a particularly bordering the heating rods by the heat-insulating material of the holder results in a sharp delimitation of the heating zones and ensures clean edges of the marking lines.
  • the heating rods protrude a small amount from the circumferential surface of the roller, the air surrounding the heating rods ensures cooling of the mineral fiber material adjacent to the marking strips during the marking and thus promotes a clean formation of the edges of the marking lines. Furthermore increases especially at deeper in the mineral fa When the roller is pressed in, the mineral fiber material has an entraining effect on the roller, since protruding edges of the heating rods favor the entraining effect.
  • heating rods can be heated by greased electrical tubular heating elements, there is a constructive freedom of design for the heating rods.
  • a commercially available tubular heater can be used, which results in low procurement costs and high operational reliability, without the outer contour of which would restrict the free movement of the heating rods.
  • any type of suitable heating device including a contactless one, e.g. B. induction heating can be used as long as it is ensured that the desired heating can take place locally in the heating zones.
  • a structurally particularly expedient embodiment results according to claim 11 by using an inner support body for the roller in the form of a cylindrical polygon.
  • Each straight surface of the polygon can be a support for the holder and the internals of a heating element in a structurally simple manner.
  • the drive speed of the roller can be synchronized with that of the conveyor or production belt in a simple manner by using a DC motor to drive the roller.
  • an electric motor with a freewheel which is expediently designed as a three-phase motor, is preferably provided, which in the heating phase for a continuous slow rotation of the roller at non-critical speed for uniform heating of the Heating rods ensures, and the freewheel allows the motor to overtake as soon as the roller lies on the mineral fiber web and is driven by it at increased speed.
  • the electric motor then continues to rotate the lifted roller in order to ensure that the heating elements are always heated uniformly.
  • the bearing frame of the roller is kept positively adjustable in its height by means of an actuator. In this way, the impression conditions of the roller on the mineral fiber web can be fine-tuned at any time in such a way that the markings are optimally formed as a function of the current transport speed of the mineral fiber web.
  • the actuator according to claim 14 has at least one threaded spindle which can be driven, for example, by an electric stepper motor and thus ensures problem-free fine adjustment and its maintenance by remote control.
  • the threaded spindles preferably engage a holding frame for the lifting and lowering storage frame, which is likewise designed to be raised and lowered.
  • this holding frame is connected to the storage frame via a pressure medium drive and the latter can be moved between an operating position and a rest position by the pressure medium drive.
  • Fig. 1 denotes a roller, as shown in Fig. 2 enlarged with details and in Fig. 3 schematically simplified perspective.
  • Fig. 1 only the left end of the roller 1 is illustrated in the example, it being understood that there is a corresponding bearing of the roller at the opposite end.
  • Fig. 1 denotes a shaft, which is connected to the roller 1 and serves to support it.
  • the roller 1 is supported on the shaft 2 on a bearing frame 3 via bearings 4 on both sides. Outside the bearing 4, the shaft 2 protrudes into an electrical connection box 5, in which the rotating parts of the roller 1 are supplied with power in a known manner via schematically illustrated slip rings 6.
  • the roller 1 is rotatable about the shaft 2 in the bearing 4.
  • An electric motor 7 is provided as a rotary drive, which is mounted on the bearing frame 3 and drives a drive gear 9, which is connected to the shaft 2 in a rotationally fixed manner, with an output pinion 8 via a toothed belt or the like. In this way, the roller 1 can be rotated in the bearings 4.
  • the storage rack 3 is supported on columns 10 of a stationary portal, designated overall by 11. and movably guided In a corresponding manner, a holding frame 12 with a crossbar 13 is guided up and down on the columns 10.
  • the bearing frame 3 is held on the holding frame 12 via pressure medium drives 14 in the form, for example, of pneumatic cylinders 15, which are mounted on the crossmember 13 and whose piston rods 16 act on the bearing frame 3 at 17.
  • pressure medium drives 14 in the form, for example, of pneumatic cylinders 15, which are mounted on the crossmember 13 and whose piston rods 16 act on the bearing frame 3 at 17.
  • the holding frame 12 is in turn connected via actuators 18 to a cross member 19 of the fixed portal 11.
  • the actuators 18, for example in the form of threaded spindles 20, are actuated by an electric motor 21, for example in the form of a stepping motor and gear 22.
  • the height of the crossmember 13 and the holding frame 12 can be finely adjusted in a desired position via the actuating drives 18.
  • the piston rod 16 of the pressure medium drives 14 is extended, this results in a corresponding specific height position of the roller 1.
  • the roller 1 can be lowered into this predetermined operating position or raised to a rest position without the holding frame 12 changing its position and thus the set fine setting is canceled.
  • the lower region of the roller 1 is shown in an end view and partly in section in the operating position.
  • the roller 1 has a support body 23 in the form of a polygon, in the example in the form of a 20-corner, on the flat lateral surfaces 24 of which holders 25 for heating rods 26 are held by screws 27.
  • the heating rods 26 have a bearing body 28 arranged in the interior of the holder 25 and also marking ribs 30 protruding from the peripheral surface of the roller 1, designated 29.
  • the heating rods 26 consist of a suitable, good heat-conducting metal and have in the area of their bearing body 28 a round recess 31 in the example for receiving conventional tubular heating elements 32 - similar to heating coils from immersion heaters.
  • the heating rods 26 are formed in a plane 33 which is radial to the axis of the roller 1, the parts 26a and 26b of the heating rods 26 thus formed being connected to one another by suitable countersunk screws 34 and 35.
  • the heating rods 26 are preassembled by inserting the screws 34 and 35 and inserted into the holder 25.
  • the holders 25 are then provided on their outer circumferential sides with cover plates 36 which overlap shoulders 37 of the bearing body 28 of each heating element 26 and thus hold it securely in the holder 25.
  • the holder 25 and the cover plates 36 consist of a suitable, poorly heat-conducting material such as a fibrous or fibrous molding material based on asbestos or asbestos substitute in order to avoid heat losses from the heating rods 26 and the areas of the peripheral surface 29 on both sides of the marking ribs 30 before heating and to protect heat transfer to the mineral fiber material of the mineral fiber web designated by 38.
  • a suitable, poorly heat-conducting material such as a fibrous or fibrous molding material based on asbestos or asbestos substitute in order to avoid heat losses from the heating rods 26 and the areas of the peripheral surface 29 on both sides of the marking ribs 30 before heating and to protect heat transfer to the mineral fiber material of the mineral fiber web designated by 38.
  • all sides of the heating rods 26 lying within the circumferential surface 29 of the roller 1 are indicated by heat-insulating material.
  • Each heating rod 26 has a recess 39 for receiving an earth cable. At least one of the heating rods 26 also has a recess 40 in the vicinity of its marking rib 30 for receiving a thermal sensor.
  • the temperature control using the thermal sensor and the power supply to the tubular heater 32 is carried out via the slip rings 6 (see FIG. 1).
  • temperature control using thermal sensors can also be dispensed with, and instead only the power supply to the tubular heating element 32 can be regulated. In stationary operation, a certain temperature then results which is suitable for producing the markings, the optimum formation of the markings being able to be set by the degree of impression of the roller 1 in the mineral fiber web 38.
  • the marking ribs 30 of the heating rods 26 and possibly the heating rods themselves only extend over part of the axial length of the roller 1, so that a plurality of marking ribs 30 form an interrupted line along a surface line of the roller 1 and at an axial distance are arranged from each other. If the length of the heating rods 26 is limited to the axial extent of the marking ribs 30, this results in a plurality of individual, shorter heating rods with easily controllable thermal expansions.
  • the heating rods 26 can then be connected to one another by lines or a piece of tubular heating element 32 which is insulated on the corresponding circumference and which connects the heating rods 26 approximately in an arc shape. If, on the other hand, the heating rods 26 pass over the entire axial length of the roller 1 and only the gaps required to interrupt the marking are present between the protruding sections of the heating rods 26, which are referred to as marking ribs 30, a very robust and stable construction results, in which the tubular heating elements 32 are embedded in the heating rods 26 over their entire length.
  • the mineral fiber web 38 is preferably of a type such as is explained in the context of DE-A-36 12 858.
  • it may be an unclad mineral fiber web 38 with a width of 1200 mm, a nominal thickness of 100 mm and a length of 6 m.
  • the bulk density may be between 10 and 30 kg / m 3 , in particular between 14 and 25 kg / m 3 , and in the specific case of 18 kg / m 3 .
  • a particularly suitable binder is phenolic resin in a proportion of 6 to 7% by weight of the dry binder in the product, the binder content of phenolic resin being 6.6% by weight (dry) in the example.
  • the roller 1 In operation, with the piston rods 16 retracted, the roller 1 is set in rotation by the electric motor 7 above the surface of the mineral fiber web 38 designated 41, the heating rods 26 being preheated to a desired temperature, optionally monitored by the thermal sensors, by supplying current to the tubular heating elements 32.
  • the rotation in the preheating phase ensures uniform heat losses of the individual heating rods 26 and marking ribs 30 and thus their uniform heating without individual temperature control on each individual heating rod 26.
  • the piston rods 16 are extended and the roller 1 is lowered onto the surface 41 of the mineral fiber web 38, whereby the electric motor 21 and the actuating drives 18 can be used to fine-tune the height of the roller 1 above the mineral fiber web 38.
  • the setting is appropriately selected so that the marking ribs 30 on the circumference of the roller 1 press the surface 41 of the mineral fiber web 38 to form a trough 42.
  • the surface 41 of the mineral fiber web 38 is typically uncovered, that is to say is formed by the mineral fiber tangle itself; however, the surface 41 can also have a lamination, for example in the form of a fleece based on mineral fibers or of other fibers.
  • the marking rib 30 has a temperature of typically of the order of 400 ° C. and produces a zone of the decomposition of the binder in the mineral fiber web 38, indicated by dash-dotted lines, which is discolored.
  • marking lines are formed on the surface 41 of the mineral fiber web 38, which extend transversely to the side edges of the mineral fiber web 41.
  • the roller 1 can be continuously driven synchronously with the transport speed of the mineral fiber web 38.
  • a DC motor is then expediently used as the electric motor 7.
  • a three-phase motor is used as the electric motor 7, which is connected to the output pinion 8 via a freewheel 44, such that when the roller 1 is driven from the mineral fiber web 38, the rotational speed of the roller 1 can overtake that of the electric motor 7.
  • the drive by the electric motor 7 is used exclusively to maintain a minimum rotational speed which is not critical in terms of the rotational speed in the raised rest position when the drive is removed from the mineral fiber web 38 in order to ensure uniform heating of the heating rods 26.
  • the heat transfer conditions between the marking ribs 30 and the surface 41 of the mineral fiber web 38 can be set in the manner described to form optimal marking lines.
  • a fine adjustment can also be dispensed with, since it is then possible to work with a fixed presetting of the impression behavior of the roller 1 into the surface 41 of the mineral fiber web 38. In this way, the construction for mounting the roller 1 can be significantly simplified.
  • the pressure medium drives 14 can be depressurized in the operating position, so that the roller 1 simply rests on the mineral fiber web 38 with its own weight.
  • excessive penetration can be avoided by the fact that the marking ribs 30 do not protrude from the undisturbed circumferential surface 29 of the roller 1 by a few millimeters, in the example, approximately 8 mm, but lie within the undisturbed circumferential surface 29, so that these - approximately in the form of cover plates 36 - helping to carry the weight and thus avoiding excessive local penetration.
  • the illustrated embodiment with marking ribs 30 protruding from the peripheral surface 29 However, it is particularly outstanding for driving the roller 1 from the mineral fiber web 38.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Electromagnetism (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Nonwoven Fabrics (AREA)
  • Building Environments (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Materials For Medical Uses (AREA)
  • Paper (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Polyoxymethylene Polymers And Polymers With Carbon-To-Carbon Bonds (AREA)
  • Treatments Of Macromolecular Shaped Articles (AREA)
  • Adhesives Or Adhesive Processes (AREA)

Claims (15)

1. Procédé pour obtenir des lignes de marquage sur une bande de fibres minérales contenant un liant, dans lequel la surface (41) de la bande de fibres minérales (38) qui repose sur une bande transporteuse en défilement, et en particulier sur la bande de production, est soumise à l'action locale de la chaleur d'un dispositif de chauffage monté fixe,
caractérisé par le fait :
que l'on utilise comme dispositif de chauffage un cylindre (1) dont la surface périphérique (29) est posée sur la surface (41) de la bande de fibres minérales (38) et que l'on fait tourner à une vitesse telle qu'il en résulte une vitesse circonférentielle du cylindre (1) qui correspond, du moins approximativement, à la vitesse de transport de la bande de fibres minérales (38),
que des zones de chauffage en forme de lignes (26) parallèles à l'axe et nettement délimitées localement sur la surface périphérique (29) du cylindre (1) sont chauffées à une température située au-dessus de la température de décomposition du liant contenu dans la bande de fibres minérales (38), et :
que les régions de la surface périphérique (29) du cylindre (1) qui sont situées entre les zones de chauffage (26) sont isolées contre la transmission de la chaleur à la bande de fibres minérales (38).
2. Procédé selon la revendication 1, caractérisé par le fait que le cylindre (1) est enfoncé dans la surface (41) de la bande de fibres minérales (38) pourfor- mer une cuvette (42).
3. Procédé selon la revendication 2, caractérisé par le fait que le cylindre (1) repose sur la bande de fibres minérales ( 38 ) par son propre poids.
4. Procédé selon la revendication 2 ou 3, caractérisé par le fait que le cylindre (1) est mû grâce à son entraînement par la surface (41) de la bande de fibres minérales (38).
5. Procédé selon l'une des revendications 1 à 4, caractérisé par le fait que l'on utilise une pluralité de zones de chauffage (30) alignées les unes derrière les autres et à distance les unes des autres en vue de former une ligne de marquage discontinue.
6. Procédé selon l'une des revendications 2 à 5, caractérisé par le fait que la profondeur de la cuvette (42) formée dans la surface (41) de la bande de fibres minérales (38) est commandée en fonction de la vitesse de transport de la bande de fibres minérales (38) de telle manière que la profondeur augmente lorsque la vitesse de transport croit, afin de maintenir constant, pour l'essentiel, un transfert de chaleur prédéterminé du cylindre (1) à la bande de fibres minérales (38).
7. Dispositif pour la mise en oeuvre du procédé selon l'une au moins des revendications 1 à 6, comprenant un cylindre (1) qui est monté tournant sur un arbre (2) et qui comporte des barres chauffantes (26) disposées sur son pourtour parallèlement à l'axe, et comprenant un dispositif de chauffage (32) pour les barres chauffantes (26),
caractérisé par le fait :
que l'arbre (2) du cylindre (1) est monté tournant sur un bâti porte-paliers (3) qui peut être levé et baissé, et :
que les régions de la surface périphérique (29) du cylindre (1) qui sont situées entre les barres chauffantes (26) sont recouvertes par des plaques de recouvrement (36) en un matériau d'isolation thermique.
8. Dispositif selon la revendication 7, caractérisé par le fait que les barres chauffantes (26) sont disposées dans des supports (25) qui sont constitués par un matériau d'isolation thermique comme une matière fibreuse comprimée et qui, de préférence, entourent complètement les barres chauffantes (26) sur leurs côtés disposés à l'intérieur de la surface périphérique (29) du cylindre (1).
9. Dispositif selon la revendication 7 ou 8, caractérisé par le fait que les barres chauffantes (26) font saillie de quelques millimètres hors de la surface périphérique (29) du cylindre (1).
10. Dispositif selon l'une des revendications 7 à 9, caractérisé par le fait que les barres chauffantes (26) peuvent être chauffées au moyen de corps tubulaires de chauffage électrique (32) qui y sont noyés.
11. Dispositif selon l'une des revendications 7 à 10, caractérisé par le fait que le cylindre (1) comporte un corps porteur intérieur (23) en forme de prisme à section polygonale comprenant un nombre de faces qui correspond au nombre des barres chauffantes (26) du côté de la périphérie.
12. Dispositif selon l'une des revendications 7 à 11, caractérisé par le fait que le cylindre (1) peut être entraîné par un moteur électrique (7) comprenant un mécanisme de roue libre (44).
13. Dispositif selon l'une des revendications 7 à 12, caractérisé par le fait que le bâti porte-paliers (3) du cylindre (1) est maintenu dans sa position en hauteur en pouvant être réglé positivement quant à sa position au moyen d'un mécanisme de réglage (18).
14. Dispositif selon la revendication 13, caractérisé par le fait que le mécanisme de réglage (18) comporte au moins une broche filetée (20) en prise avec un bâti de support (12) qui peut être levé et baissé et qui est destiné au bâti porte-paliers (3).
15. Dispositif selon la revendication 14, caractérisé par le fait que le bâti de support (12) est relié par l'intermédiaire d'un entraînement à fluide sous pression (14) au bâti porte-paliers (3), et que ce dernier peut être déplacé au moyen de l'entraînement à fluide sous pression (14) entre une position de fonctionnement et une position de repos.
EP87200792A 1986-04-16 1987-04-16 Procédé et dispositif pour obtenir des lignes de marquage sur une nappe de fibres minérales contenant un liant Expired - Lifetime EP0244035B2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87200792T ATE68418T1 (de) 1986-04-16 1987-04-16 Verfahren und vorrichtung zum aufbringen von markierungslinien auf eine bindemittelhaltige mineralfaserbahn.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3612858A DE3612858C1 (de) 1986-04-16 1986-04-16 Verfahren zum Einbau von in Rollenform vorliegendem Mineralfasermaterial in einen von seitlichen Stuetzen begrenzten langgestreckten Einbauraum sowie zur Durchfuehrung des Verfahrens geeignete Mineralfaserbahn und Verfahren zu deren Herstellung
DE3612858 1986-04-16

Publications (3)

Publication Number Publication Date
EP0244035A1 EP0244035A1 (fr) 1987-11-04
EP0244035B1 true EP0244035B1 (fr) 1991-10-16
EP0244035B2 EP0244035B2 (fr) 1995-05-17

Family

ID=6298831

Family Applications (2)

Application Number Title Priority Date Filing Date
EP87902501A Pending EP0266382A1 (fr) 1986-04-16 1987-04-16 Procede et dispositif pour apposer des lignes de marquage sur une bande de fibres minerales contenant un liant
EP87200792A Expired - Lifetime EP0244035B2 (fr) 1986-04-16 1987-04-16 Procédé et dispositif pour obtenir des lignes de marquage sur une nappe de fibres minérales contenant un liant

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP87902501A Pending EP0266382A1 (fr) 1986-04-16 1987-04-16 Procede et dispositif pour apposer des lignes de marquage sur une bande de fibres minerales contenant un liant

Country Status (12)

Country Link
EP (2) EP0266382A1 (fr)
AT (1) ATE68418T1 (fr)
CA (1) CA1302155C (fr)
CH (1) CH660765A5 (fr)
DE (1) DE3612858C1 (fr)
DK (1) DK165398C (fr)
ES (1) ES2026895T5 (fr)
FI (1) FI875548A7 (fr)
GR (1) GR3002922T3 (fr)
IE (1) IE60391B1 (fr)
IT (1) IT1216923B (fr)
WO (1) WO1987006198A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3908128A1 (de) * 1989-03-13 1990-09-20 Gruenzweig & Hartmann Thermische markierungsvorrichtung fuer mineralwollebahnen sowie verfahren zum aufbringen von markierungen
DE3928741A1 (de) * 1989-08-30 1991-03-07 Gruenzweig & Hartmann Schraegdach, insbesondere von altbauten, sowie daemmstoffbahn zu seiner daemmung und verfahren zu seiner herstellung
DE4341433A1 (de) * 1993-12-04 1995-06-08 Joma Daemmstoffwerk Josef Mang Platte zur Wärmedämmung von Gebäuden
DE4447681C2 (de) * 1994-04-29 2000-05-31 Gruenzweig & Hartmann Fassadendämmsystem
EP0795424B1 (fr) * 1996-03-12 2002-06-19 Kaibel & Sieber GmbH Dispositif et procédé pour obtenir des marquages sur un produit en fibres minérales
DE29616963U1 (de) * 1996-09-28 1997-01-02 Deutsche Rockwool Mineralwoll-Gmbh, 45966 Gladbeck Faserdämmstoff
WO1999029517A1 (fr) * 1997-12-05 1999-06-17 Seeber Engineering Gmbh Dispositif comprenant un magasin de supports de signes distinctifs pour imprimer par estampage des signes distinctifs sur des pieces mobiles
DE19903370A1 (de) * 1999-01-28 2000-08-03 Gruenzweig & Hartmann Markierungen an insbesondere Mineralwollprodukten
US6644185B1 (en) * 2000-11-06 2003-11-11 Greydon Inc. Flexographic rotary platen printing press

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3730081A (en) * 1972-01-07 1973-05-01 G Colledge Rotory hot die embosser with tapered shaft and insulated embossing wheel
US4007767A (en) * 1972-01-07 1977-02-15 Colledgewood, Ltd. Highspeed rotary branding process having increased die life
US4288968A (en) * 1979-12-03 1981-09-15 Fuji Machinery Co., Ltd. End sealing device for a plastic film in a packaging apparatus
US4380446A (en) * 1980-09-12 1983-04-19 Rexham Corporation Side sealing mechanism for a packaging machine
DE3203624C2 (de) * 1981-09-17 1990-02-15 Deutsche Rockwool Mineralwoll-GmbH, 4390 Gladbeck Platte aus Dämmstoffen, insbesondere Mineralfasern
DE3229601C2 (de) * 1982-08-09 1984-12-06 Grünzweig + Hartmann und Glasfaser AG, 6700 Ludwigshafen Dämmstoffbahn, bestehend aus einer Dämmstofflage, insbesondere aus Mineralfaserfilz, und einer aufgeklebten Kaschierungsbahn, sowie Verfahren zu ihrer Herstellung und Verfahren zu ihrem Einbau

Also Published As

Publication number Publication date
WO1987006198A1 (fr) 1987-10-22
DE3612858C1 (de) 1987-10-01
EP0244035A1 (fr) 1987-11-04
IT8720016A0 (it) 1987-04-07
DK165398C (da) 1993-04-05
EP0244035B2 (fr) 1995-05-17
DK660787A (da) 1987-12-16
ES2026895T3 (es) 1992-05-16
DK660787D0 (da) 1987-12-16
CA1302155C (fr) 1992-06-02
ES2026895T5 (es) 1995-08-16
EP0266382A1 (fr) 1988-05-11
IT1216923B (it) 1990-03-14
IE871001L (en) 1987-10-16
GR3002922T3 (en) 1993-01-25
FI875548A0 (fi) 1987-12-16
CH660765A5 (de) 1987-06-15
IE60391B1 (en) 1994-07-13
FI875548A7 (fi) 1987-12-16
ATE68418T1 (de) 1991-11-15
DK165398B (da) 1992-11-23

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