EP2548673B1 - Verfahren und Anlage zur Herstellung von vorgefertigten Dämmplatten zum Überdachen von Gebäuden - Google Patents

Verfahren und Anlage zur Herstellung von vorgefertigten Dämmplatten zum Überdachen von Gebäuden Download PDF

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Publication number
EP2548673B1
EP2548673B1 EP12177140.6A EP12177140A EP2548673B1 EP 2548673 B1 EP2548673 B1 EP 2548673B1 EP 12177140 A EP12177140 A EP 12177140A EP 2548673 B1 EP2548673 B1 EP 2548673B1
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EP
European Patent Office
Prior art keywords
sheet
advancement
sheets
chemical product
continuous
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EP12177140.6A
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English (en)
French (fr)
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EP2548673A1 (de
Inventor
Esterino Ceria
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Isolpack SpA
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Isolpack SpA
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Publication of EP2548673A1 publication Critical patent/EP2548673A1/de
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D47/00—Making rigid structural elements or units, e.g. honeycomb structures
    • B21D47/04—Making rigid structural elements or units, e.g. honeycomb structures composite sheet metal profiles
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B7/00—Roofs; Roof construction with regard to insulation
    • E04B7/02—Roofs; Roof construction with regard to insulation with plane sloping surfaces, e.g. saddle roofs
    • E04B7/026—Roofs; Roof construction with regard to insulation with plane sloping surfaces, e.g. saddle roofs consisting of prefabricated modules, e.g. box-like or cell-like units
    • 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
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D3/00—Roof covering by making use of flat or curved slabs or stiff sheets
    • E04D3/35—Roofing slabs or stiff sheets comprising two or more layers, e.g. for insulation
    • E04D3/351—Roofing slabs or stiff sheets comprising two or more layers, e.g. for insulation at least one of the layers being composed of insulating material, e.g. fibre or foam material
    • E04D3/352—Roofing slabs or stiff sheets comprising two or more layers, e.g. for insulation at least one of the layers being composed of insulating material, e.g. fibre or foam material at least one insulating layer being located between non-insulating layers, e.g. double skin slabs or sheets

Definitions

  • the present invention relates to prefabricated insulating panels for roofing of buildings and has been developed with particular reference to panels of a sandwich type, i.e., comprising a lower sheet made of rigid or semirigid material, an upper sheet made of rigid material, and a layer made of insulating material between the upper and lower sheets.
  • the structure of the panels referred to made up of the aforesaid layer of insulating material firmly set between the two rigid or semirigid sheets, is substantially monolithic, and this guarantees good characteristics of tightness to infiltrations, thermal insulation, and strength. For this reason, the panels of the type referred to are widely used for producing roofings of buildings.
  • each pitch is formed by a respective plurality of juxtaposed panels.
  • the waterproof joint between the two opposite inclined pitches, each formed by a respective plurality of panels, is obtained by installing an additional ridge element, which defines the ridge line of the roof.
  • Plane panels of this type require relatively complex or extensive substructures, which are designed to sustain the panels that form each pitch in an inclined position.
  • insulating panels that have an overall curved shape.
  • the monolithic structure of these panels comprises an upper sheet and a lower sheet, curved according to one and the same radius and arranged parallel to one another, set between which is the layer of insulating material.
  • these curved panels are modular, with the possibility of the front and back of different panels being coupled together in the direction of length of the span.
  • the curved panels for the applications referred to are in general produced with relatively small radii of curvature. Consequently, the top surface of these panels has a steep slope, even higher than 50%, and practically does not provide a surface on which it is possible to walk, other than with a high risk of slipping. This circumstance complicates possible interventions that must be performed on the roof (for example, cleaning or maintenance), as well as the installation of additional elements (for example, planar photovoltaic modules).
  • the curved panels can also be formed with wide radii of curvature, but the consequence of this is that the maximum load admissible for the panels themselves is considerably reduced.
  • curved panels of the type referred to are obtained using purposely provided presses designed to make one panel at a time (see, for example, WO 02/34493 ). Said presses are generally complex, and in any case production is relatively slow. Specific plants have also been proposed for the continuous production of curved panels (see, for example, WO 2004/071691 ), but also these are extremely complicated, cumbersome, and difficult to handle.
  • the aim of the present invention is basically to provide new methodologies and systems for the production of monolithic sandwich panels, which enable the problems referred to previously to be overcome. Said general aim is achieved, according to the present invention, by a process and by a plant which have the characteristics specified in the annexed claims.
  • the claims form an integral part of the technical teaching provided herein in relation to the invention.
  • FIG. 1 Represented in Figure 1 is a prefabricated insulating panel, obtained according to a possible preferred embodiment of the invention, for example, for the roofing of individual spans of buildings.
  • the panel designated as whole by 1, has a monolithic structure that comprises a lower length of sheet or plate 2, preferably but not necessarily made of metal material, and an upper length of sheet or plate 3 made of metal material.
  • Set between the plates 2 and 3 is a layer or mass of insulating material 4.
  • the layer 4 is preferably obtained starting from a chemical product - of a type in itself known in the sector - designed to expand to form a solid foam, such as, for example, a self-extinguishing polyurethane resin or a polyisocyanide foam or a foam containing flame retardant additives.
  • the gluing capacity of the aforesaid expanded material can be advantageously exploited for fixing together the aforementioned components 2-4 of the panel 1 in order to obtain the aforesaid monolithic structure and thus prevent the
  • the panel 1 has a length L, understood as distance between the ends S, and a width W, understood as distance between the front F and the back R.
  • At least the upper plate 3, and preferably also the lower plate 2 are corrugated; i.e., they have parallel ribs, which extend substantially throughout the length of the plates themselves, between the ends S.
  • the plates 2 and 3 can be obtained via rolling from sheet metal, for example, of stainless or galvanized steel, or of aluminium or copper, possibly painted or subjected to other surface treatment.
  • the upper plate 3 envisages a plurality of deep ribs, some of which are designated by 6a, 6b, 6c, and a plurality of shallow ribs, some of which are designated by 7. Between two deep ribs there preferably extends a plurality of shallow ribs, in the same longitudinal direction. The presence of these deep and shallow ribs enables strengthening of the structure of the upper plate 3, and hence of the entire panel 1.
  • the lower plate 2 can present a plurality of ribs 5 substantially parallel to one another and with respect to the front F and back R of the panel.
  • the front F and back R are shaped so as to enable waterproof juxtaposition between a number of similar panels 1.
  • the front F (or the back R) of one panel 1 can be coupled via overlapping on the back R (or on the front F) of another panel 1.
  • the upper plate 3 is shaped to form part of a deep rib 6a, which is external to the space for containing the insulating mass 4.
  • the upper plate 3 is shaped to define a deep rib 6b, designed for shape coupling with the rib 6a of another panel 1.
  • Figure 3 is a schematic illustration of the step of superposition of the rib 6a of one panel 1 on the rib 6b of a different panel 1.
  • Figures 2 and 4 show, via a schematic cross-sectional view and a perspective view respectively, a number of panels 1 coupled in the way described.
  • the final fixing between the panels 1 juxtaposed in the aforesaid way can be obtained with modalities and means in themselves known in the sector, for example, screws and U-bolts.
  • the shape coupling between the front F and the back R of two different panels 1 can also include a longitudinal appendage (comprising, for example, a shaped portion of the rear edge of the lower plate 2) of one panel 1, which is to be coupled in a longitudinal recess defined in the face of the insulating mass 4 that is located at the front of another panel 1.
  • a longitudinal appendage comprising, for example, a shaped portion of the rear edge of the lower plate 2 of one panel 1, which is to be coupled in a longitudinal recess defined in the face of the insulating mass 4 that is located at the front of another panel 1.
  • the panel 1 has at least one ridge region that extends between the front F and the back R.
  • the upper plate 3 defines, in parts opposite to the aforesaid ridge region, two opposite pitches, which are preferably straight or planar.
  • the plate 3 is shaped to define two inclined planes, designated by 10, which form the two aforesaid pitches, with the ridge region of the panel 1, designated by 11, that is defined in the intermediate area or area of transition between the two inclined surfaces 10.
  • the panel 1 has a generally substantially double plane-pitch configuration, and said shape, in addition to guaranteeing the necessary off-flow of water, enables the typical problems of curved panels of the type described previously to be overcome, in particular in order to render the surface treadable and/or guarantee robustness thereof and resistance to loads and/or facilitate installation thereon of additional units, such as photovoltaic modules.
  • additional units such as photovoltaic modules.
  • the slope of at least one of the inclined surfaces 10, preferably of each inclined surface 10, is less than 25%. In the embodiment currently deemed preferential, said slope is comprised between approximately 3% and approximately 8%, preferably approximately 5-6%.
  • the two inclined surfaces or pitches 10 can have one and the same slope and length, with respect to the ridge of the panel 1, as in the case of Figure 1 : in other embodiments, on the other hand, it is possible to envisage slopes and/or lengths different from one another for the two pitches 10.
  • the general development of the plate 2 in the longitudinal direction is different from the general development of the plate 3 in the longitudinal direction.
  • the lower plate 2 has a substantially straight general longitudinal development; i.e., it lies substantially in a plane.
  • the upper plate 3 has, instead, a general longitudinal development that defines the two surfaces 10 that have opposite inclinations.
  • the panel 1 has, in cross section, an at least approximately triangular shape.
  • the thickness of the layer of insulating material 4 is variable starting from each end S up to the area corresponding to the ridge region 11; in particular, in the case exemplified, the thickness increases by a minimum, at the end S, to a maximum, in the ridge region 11.
  • the overall structure of the panel 1 is very sturdy and distinguished by an increased capacity to withstand loads.
  • the panel 1 thus has also an insulating mass of increased thickness.
  • the configuration of the bottom formed by the plate 2 presents the further advantage - in the installed condition of the panels - of reducing the internal space of the building that is to be heated in the cold seasons, as compared to a roofing obtained via the curved panels described previously.
  • the plate 2 could also be corrugated (albeit set according to a respective general substantially rectilinear plane), or again could be a slightly arched plate 2, with concavity facing upwards or downwards.
  • the two inclined surfaces 10 defined by the upper plate 3 intersect at the ridge region 11, to define a ridge line 11a of the panel 1 ( Figure 1 ).
  • the ridge region defined by the upper plate 3 cannot be cusp-shaped: in other words, the plate 3 can be bent in the production stage to define, for example, between the two inclined surfaces 10 an intermediate or transition area that is horizontal or an area with some other profile (see, by way of example, Figure 31 ).
  • the upper plate 3 is shaped so as to present, in the regions of the ends S, stretches S' that are angled with respect to the corresponding surfaces 10, which are preferably generally rectilinear and are substantially parallel to the lower sheet 2.
  • the stretches S' project substantially in cantilever fashion outwards beyond the insulating mass 4 and the lower plate 2.
  • the stretches S' can indicatively have a length of approximately 10 cm.
  • the prefabricated insulating panels 1 obtained according to the invention are advantageously usable also for the top roofing of individual spans, i.e., of the space comprised between two parallel rests or load-bearing elements of a building, with each panel 1 set perpendicular to the aforesaid rests, i.e., with the end regions of the panels 1 that are supported by them.
  • Figures 7-21 refer to a plant for implementing a first possible process of production of the panels 1
  • Figures 22-29 refer to a plant for implementing a second possible process of production of the panels 1.
  • the aforesaid first plant enables continuous production of panels 1
  • the aforesaid second plant enables substantially continuous or semi-continuous production of panels 1.
  • first feed means and second feed means for continuously feeding the plant with a first continuous band and a second continuous band, preferably of metal material.
  • the means 100 and 101 can be constituted by reels of a type commonly used in the sector.
  • the aforesaid bands constitute a first sheet 102 and a second sheet 103 necessary for production of the panels 1: from the sheets 102 and 103 there are in fact obtained the plates 2 and 3 of each panel 1, as will emerge hereinafter.
  • Designated by 104 is a first roll forming machine, which is also of a conception known in the sector, provided for forming in the sheet 102 the ribs 5 (see Figure 2 ).
  • Designated by 105 is a second roll forming machine, which is also of a conception known in the sector, provided for forming in the sheet 103 the ribs 6a, 6b, 6c and the ribs 7 (see again Figure 2 ).
  • the roll forming machines 104 and 105 also constitute the means that enable longitudinal displacement of the two sheets 102 and 103 in the direction of advancement of the plant, designated by X in Figure 7 .
  • roller-type or endless-loop members provided downstream of the roll forming machines 104 and 105 can contribute to the advance along the plant. As may be seen, the arrangement is such that the two sheets 102 and 103 travel in the direction of advancement X generally set on top of, and at a distance from, one another.
  • Designated by 110 is a bending station, where at least the sheet 103 is bent. Between the feed means 102, 103 and the bending station 110 there can, if necessary, be provided radiusing roller tracks, of a type in itself known, one of which is designated by 106 in Figure 7 .
  • the bending means configured for bending the sheet 103 according to a bending line that extends between the two side edges of the sheet itself, and hence transverse to the direction of advancement X.
  • This bending line designated by 11' in some of the subsequent figures, is to form a ridge line of a panel 1.
  • the bending means of the station 110 are configured for bending the sheet 103 while this is advancing in the direction of advancement X.
  • a bending device is provided that is movable to and fro - i.e., in opposite senses - in the direction X, in particular from a first position to a second position in a first sense, and from the second position to the first position, in a second sense opposite to the first sense.
  • FIG. 8-11 The concept is exemplified in Figures 8-11 , where designated as whole by 111 is the bending device, basically comprising a top die 112 and a bottom counter-die 113, both mounted on a structure 114 - represented dashed - that is movable parallel to the direction of advancement X.
  • the die and the counter-die have facing surfaces which have a ribbed profile congruent with that of the sheet 103 (which, as has been said, is provided with the ribs 6a-6c and 7).
  • Figure 8 illustrates the aforesaid first position, where the die 112 and the counter-die 113 are set at a distance, with the sheet 103 that advances between them in the direction X: in said condition, the structure 114 is stationary.
  • the control system of the bending station 110 governs approach between the die 112 and the counter-die 113, the structure 114 starts to translate in the direction X, in the same sense of advance as that of the sheet 103.
  • the control parameters of the device 111 such as the speed of translation of the structure 114 and the speed of closing of the die and counter-die, are controlled according to the speed of advance of the sheet 103 and taking into account the yield envisaged for the sheet itself due to its bending.
  • the translation of the structure 114 proceeds slightly also after closing of the die and the counter-die ( Figure 9 ), when the latter start to move away from one another, and until the sheet 103 provided with the bending line 11' is released, as may be seen in Figure 10 .
  • the structure 114 is located now in a second stationary position, advanced with respect to that of Figure 8 , and from said second position it can be made to return towards the first position, as exemplified in Figure 11 , ready for a new bending operation on the sheet 103.
  • the actuation means used to obtain translation of the structure 114 are not represented in Figures 8-11 in so far as they can be implemented according to modalities that appear obvious to the person skilled in the branch.
  • said actuation means can be of a type similar to that of actuation means already commonly used in plants for the production of traditional insulating panels, for translating in the direction of advancement - in opposite senses - a saw that makes the transverse cut in the bands and in the layer of insulating material.
  • the sheets 102 and 13 are guided - once again in a condition where they are generally superimposed and with modalities in themselves known - through a foaming station, designated as whole by 120, provided for applying on the surface of one of the sheets 102 and 103 a chemical product in substantially liquid form, designed to expand, once again while the sheets are advancing in the direction X.
  • the aforesaid chemical product once expanded, forms the insulating layer 4 of a panel 1 obtained according to the invention (see, for example, Figure 1 ).
  • the material in question may, for example, be a polyurethane resin.
  • the station 120 comprises dispensing or spraying means 121, operative in the gap G defined between the two sheets; in the example represented, the aforesaid means 121 are designed to spray the chemical product 122 on the face of the sheet 103 that faces the sheet 102. Possibly, upstream of the station 120 a station can be provided for pre-heating the sheet 103 or both of the sheets 102 and 103.
  • the general configuration of the spraying means 121 can be of any type known in the sector.
  • said means 121 can comprise at least one substantially tubular dispenser, which extends in length in the direction of advancement X, as in the case exemplified, provided with nozzles for spreading the chemical product 122 on the aforesaid face of the sheet 103, and where said dispenser is movable in a reciprocating way between the two opposite side edges of the sheet itself.
  • the dispenser can instead extend in length in a direction transverse to the sheet 103 and be provided with nozzles for spreading the chemical product on the aforesaid face of the sheet between its two opposite side edges; in such an embodiment, the dispenser may possibly be translatable in opposite senses in the direction of advancement X.
  • the layer of insulating material has a variable thickness, starting from a minimum in a first longitudinal end area of the panel ( Figure 6 ), up to a maximum in the intermediate region of the panel that includes the ridge region 11 ( Figure 5 ), and then returns to a minimum in the second longitudinal end area of the panel 1.
  • the spraying means 121 are provided for cyclically applying amounts of chemical product 122 that are variable in the longitudinal direction of the sheet 103 while this is advancing, between a minimum amount and a maximum amount.
  • the amounts of chemical product 122 dispensed during each cycle of application range from a first minimum amount, to a second maximum amount, to a third minimum amount, where namely:
  • Adjustment of the aforesaid amounts can be obtained in different ways, taking of course into account parameters such as the width of the sheet 103, its speed of advance, the type of spraying nozzles, and their distance from the sheet 102, the type of chemical product 122, etc..
  • adjustment of the amounts can be varied by varying the flowrate or pressure of the chemical product 122 dispensed according to the area of application, or else - keeping the flowrate or pressure constant - by varying the speed of translation of the dispenser 121 between a minimum and a maximum according to the area of application (with a translation that is faster and slower in the areas that need a smaller and greater amount of chemical material, respectively).
  • the sheets 102 and 13 are made to travel in a continuous press 130, at a substantially predefined distance from one another. Obtained within the continuous press 130 is expansion of the chemical material 122 applied on the sheet 103 so as to form the insulating layer 4 of the panels and obtain its adhesion to the sheets 102 and 103.
  • the continuous press 130 is preferably contained in an environment kept at a substantially controlled temperature, according to a technique in itself known.
  • the press 130 is devised to contain expansion in height of the chemical material 122, i.e., to keep the sheets 102 and 103 at the substantially predetermined distance while the material itself expands in solid foam: these "vertical" containment means are represented schematically in Figure 13 .
  • the press 130 is moreover devised to contain expansion of the material 122 laterally in order to prevent it from coming out of the two sides of the gap G defined between the sheets 102 and 103: these "lateral" containment means are instead represented schematically in Figure 14 .
  • the means designed to keep the two sheets 102 and 103 at the predefined distance basically comprise an upper contrast device 131 for the sheet 102, constituted, for example, by a motor-driven endless belt, of a conception generally known, and a lower contrast device 132 for the sheet 103.
  • the contrast device 132 has a structure substantially resembling that of a motor-driven endless belt: however, given the configuration of the sheet 103, which here presents a succession of V bends, said belt bears rests or contrast elements 133 shaped for forming between them, in the forward branch of the endless belt, a shape that is the negative of - i.e., is substantially complementary to - the portion of sheet 103 that includes the bending line 11' and the two respective opposite inclined stretches, upstream and downstream of said bending line, as may be clearly seen in Figure 13 .
  • the schematic representation of Figure 13 is merely provided by way of example of the conformation of the rests or contrast elements 133.
  • the lower contrast device 132 is controlled in a co-ordinated way with respect to the stations that precede it, so that the aforesaid substantially complementary shape defined by the contrast elements 133 is found each time to be in the correct position for coupling with the variable profile of the sheet 103.
  • Figure 14 is a schematic representation according to a view orthogonal to the schematic cross-sectional view of Figure 13 , and visible therein are the means designed to contain lateral expansion of the chemical material.
  • Said means comprise two lateral contrast devices 135 and 136, which are also of a substantially endless-loop type and each of which bears a respective plurality of containment members 140 and 150.
  • the lateral contrast devices 135 and 136 are arranged in such a way that, in the forward branch of the corresponding endless-loop path, the corresponding containment members 140 and 150 will be movable in the direction of advancement X, at the side edges of the two sheets 102 and 103.
  • the containment members 140 and 150 occlude the gap between the two sheets laterally so as to stop lateral expansion of the chemical product that is expanding.
  • represented in Figure 14 is just the sheet 103, the opposite side edges of which are designated by 103a and 103b; moreover represented in the figure are the ribs 6a, 6b and 6c of the sheet 103.
  • the upper plate 3 of a panel 1 (and hence the sheet 103) has, at a first longitudinal edge thereof, the rib 6a jutting out with respect to the mass of insulating material (see, for example, Figures 1-4 ): for this reason, according to one aspect of the invention, it is advantageous to envisage that, at the corresponding edge 103a of the sheet 103, the containment members 140 are translatable also in a substantially vertical direction, in opposite senses.
  • the containment members 140 are mounted for so as to be able to move from a raised position towards a lowered position so as to be able to adapt to the variable profile of the edge 103a, and then return towards the raised position.
  • a guide 151 for the members 140 which follows the return branch of the endless-loop path and has two end terminal portions 151a and 151b substantially at the start and at the end of the forward branch of said path, respectively.
  • the guide 151, and in particular its end terminal portions 151a and 151b are shaped to define a cam surface aimed at facilitating entry of the members 140 within the rib 6a of the sheet 103 (portion 151a of the guide 151) and then their exit from said rib (portion 151b of the guide 151).
  • Figure 16 is a schematic illustration of the side of the containment device 135 opposite to what is represented in Figure 15 : as may be noted, the cam surface defined by the member 151 can extend substantially in one and the same plane, except for the two inclined portions designated by 151a and 151b in Figure 15 .
  • FIG. 18-21 Illustrated in Figures 18-21 is a possible embodiment of the containment members 140, with the corresponding transmission, support, and guide means.
  • FIG 18 designated as whole by 160 is a stationary structure of the movable press 130, defined within which is a seat 161 for movement for an endless-loop transmission member 162, substantially in the form of a chain, driven by motor means.
  • the chain 162 includes pins 162a, from which there branches off radially a corresponding arm 163, fixed at the ends of which is a bracket 164 for supporting a corresponding containment member 140.
  • a bottom wheel 165 mounted idle on the bracket 164 is a bottom wheel 165, which can turn according to a substantially horizontal axis.
  • the wheel 165 co-operates with a bottom rolling surface of a guide 166, fixed with respect to the structure 160, so as to guide the bracket 164 together with the transmission member 161 in a precise way.
  • the bracket 164 has, in its portions 164a and 164b generally parallel to the axis of rotation of the wheel 165, a through hole (not shown), slidably inserted in which is a corresponding vertical stem or rod 167, fixed with respect to the body 141 of the containment member 140 and mounted in a cavity 142 of the latter (see also Figure 18 ).
  • the body 141 is preferably made of plastic or synthetic material.
  • the stem 167 which extends axially, is constrained, at the bottom end, to the body 141 and, at the top end, to a plate 143, fixed with respect to said body.
  • the plate 143 supports laterally an upper wheel 170, which can turn along a respective substantially horizontal axis parallel to the axis of rotation of the lower wheel 165, as may be clearly seen also in Figure 19 . From Figure 18 it may be seen how the upper wheel 170 co-operates with a top rolling surface of the guide member designated previously by 151, which, as has been said, substantially provides a cam surface.
  • the containment member 140 is normally forced towards a respective lowered position, via a means for storing mechanical energy.
  • a helical spring 171 fitted on the stem 167 is provided for this purpose.
  • the ends of the spring 171 are set substantially bearing upon the bottom of the cavity 142 that houses the stem 167 and, on the other side, upon the portion 164a of the bracket 164 that has the hole for guiding the stem itself.
  • the spring 171 is normally operative for forcing the member 140, and hence its body 141, towards the aforesaid lowered position.
  • this guide 151 is not completely an endless-loop guide, but has two end portions 151a and 151b, substantially corresponding to the initial and final parts of the forward branch of the endless-loop path, the descending one (151a) and the ascending one (151b) - see Figure 15 .
  • the wheel 170 of a member 140 - which basically functions as cam-follower - engages the descending stretch 151a of the guide 151 (right-hand part of Figure 15 ), with the members 140 that can then start to drop progressively, forced in this by the action of the corresponding springs 171, towards the sheet 103, and more in particular towards its rib 6a - see also Figure 18 .
  • the dropping movement stops when the bottom end of the body 141 of the containment member 140 engages the rib 6a of the sheet 102, as is clearly exemplified in Figure 20 .
  • the member 140 then comes to bear upon the surface of the rib 6a and moves along with it in the direction X.
  • the bottom end of the body 141 is preferably shaped for coupling with the required precision in the rib 6a; in the case exemplified, and as may be clearly seen in Figures 18 and 20 , the fit is substantially a shape fit.
  • the shape of the body 141 may also be different from the one exemplified.
  • the containment members 140 can adapt their position in height to the variable profile of the edge 103a of the sheet 103, which here includes the rib 6a and, in the specific case, has a general V-shaped configuration. Consequently, once again with reference to the specific case represented, the containment members 140 enable compensation also of the different distance between the sheets 102 and 103. Obviously, in any case, the height of the members 140 - at least in their front containment face - will be at least equal to the maximum distance between the two sheets 102 and 103.
  • the wheels 170 engage the ascending stretch 151b of the guide member 151 (left-hand part of Figure 15 ), thus starting the corresponding raising, from beneath upwards.
  • the wheels 170 return onto the plane part of the guide member 151, and hence into the initial raised position, and then traverse the return branch of the endless-loop path ( Figure 16 ).
  • Figure 15 evidently illustrates an example of one of the possible conditions of relative positioning between the members 140 and the sheet 103, where the bending line 11' is located substantially in a central area of the forward branch of the looped path of the lateral containment device 135. It is on the other hand evident that, given the movement in the direction of advancement of the members 140 and their possibility of vertical translation, they can adapt continuously to the profile of the edge 103a of the sheet 103, i.e., of the rib 6a: Figure 17 illustrates, once again by way of example, a different condition that can be assumed by a lateral containment device 135 (here represented slightly more extended in the longitudinal direction) in the course of advance of the sheet 103.
  • a lateral containment device 135 here represented slightly more extended in the longitudinal direction
  • the containment members 140 are preferably set up against one another, as may be seen in Figure 21 , in order to provide for closing of the gap existing between the sheets 102 and 103 within the part of the press 130 involved.
  • the body 141 of each member 140 is shaped for lateral coupling, preferably substantially by a shape coupling, with the body 141 of the elements adjacent thereto.
  • Said station is of a conception in itself known in the sector and devised for executing the cutting operation while the sheets 102 and 103 continue to advance.
  • the cutting device that carries out the operation (for example, including a disk saw) can be mounted on a corresponding movable structure of a conception similar to the one designated previously by 114 in relation to the bending device of Figures 8-11 , i.e., translatable to and fro in the direction of advancement X.
  • the longitudinal end regions S of the panels 1 comprise a stretch S' of plate 3 that is angled with respect to the two opposite pitches 10 and is substantially parallel to the lower plate 2 and set in cantilever fashion with respect to the insulating mass (see Figures 1 , 3 and 4 ).
  • the bending station 110 will evidently be provided so as to enable definition of the aforesaid stretches S'.
  • the cutting device can possibly also comprise one or more blades, movable in a direction perpendicular to the direction of advancement for cutting the part of insulating mass 4 present in the ribs 6b-6c substantially along the second cut.
  • the plant and the methodology described above with reference to Figures 7-21 enable continuous production of the panels 1, in an extremely fast and efficient way.
  • the general structure of the plant is to a large extent of a classic type widely known in the sector, such as to require only modifications - and hence investments - on a traditional plant that are relatively contained, basically limited to the provision of the bending station, the modalities of control of the foaming station, and the adaptation of the continuous press.
  • Figures 22-28 regard a second possible embodiment of a plant for the substantially continuous or semi-continuous production of panels 1.
  • the sheet 102 is fed continuously, whilst the other sheet is fed in the form of a succession of lengths, substantially corresponding to the upper plates 3 of the individual panels to be obtained.
  • the lengths of sheet corresponding to the plates 3 are provided and bent upstream of the plant represented in Figure 22 , via a roll forming machine and a bending machine of a known conception, and hence not represented.
  • the feed means 102 of the plant of Figure 7 are consequently not necessary and are instead replaced by a station for feeding the lengths, designated as whole by 202.
  • each shuttle 210 comprises a supporting structure or frame 211, preferably made of metal material, which in the example has a generally rectangular shape.
  • the frame supports a shaping body 212, for example, made of plastic material, such as polystyrene, the top face of which is shaped in a way substantially complementary to the profile of the lengths of sheet 3, and hence includes at least two inclined surfaces that meet in a bottom point, corresponding to the ridge line 11 of a plate 3, as may be clearly seen in Figure 23 .
  • the shaping body 212 also has longitudinal grooves 212a, which have a position and dimensions congruent with the ribs 6a-6c and 7 of the plate 3, as may be clearly seen in Figure 25 .
  • the shuttles are devised for being engaged to one another in succession and, for said purpose, are provided at the opposite longitudinal ends with mutual-coupling means.
  • first coupling means 220 which are able to be engaged in a releasable way to second coupling means 230 provided at the opposite longitudinal end.
  • second coupling means 230 provided at the opposite longitudinal end.
  • the first coupling means basically consist of a fixed pair of teeth 220 projecting at the front from the frame 211, each tooth defining a respective inclined plane 220a.
  • the second coupling means 230 basically consist of a pair of fixed brackets 231, projecting at the rear from the frame 211, in positions substantially homologous to those of the teeth 220.
  • Each bracket 231 of a shuttle 210 supports in a rotatable way, via a vertical pin 232, a lever 233, which is here substantially L-shaped.
  • a vertical pin 234 Provided at the distal ends of the arm 233a of the lever 233 is a vertical pin 234, which can engage the inclined surface 220a of a respective tooth 220 of another shuttle 210, for the purposes of mutual coupling, as described hereinafter.
  • Engaged to the second arm 233b of the lever 233 is the first end of a spring 235, the second end of which is connected to the frame 211.
  • the spring 235 is operative for keeping the lever 233 bearing upon a contrast element 236 carried by the bracket 231, in a normally closed condition, i.e., with the arm 233a substantially parallel to the tooth 220.
  • a normally closed condition i.e., with the arm 233a substantially parallel to the tooth 220.
  • the distal end of the arm 233b projects laterally with respect to the frame 211.
  • each inclined surface 220a of a tooth 220 is in contact with the respective pin 234, first determining angular movement of the lever 233, countering the action of the spring 235. Once the inclined surface 220a has passed beyond the pin 234, the lever 233 can return to the initial position, by virtue of the action of the spring 235, with the pin itself that is engaged by the tooth 220. In this way, the two shuttles are engaged to one another.
  • the shuttles engaged in succession in the aforesaid way are then made to advance from the station 202 of the plant of Figure 22 , in the direction of advancement X.
  • the advance is motor-driven in an appropriate way, for example, by providing a roller track or a motor-driven conveyor suitable for pushing the shuttles 210 in the plant, at a substantially constant rate.
  • the sheet 102 and the plates 3 carried by the shuttles 210 thus advance, on a suitable roller track or conveyor, through the foaming station 120, where the chemical product, which is designed to expand according to modalities similar to the ones already described previously, is applied on the plate 3.
  • the sheet 102 and the succession of plates 3 carried by the shuttles 210 pass into the continuous press 130, to bring about expansion and consolidation of the chemical material.
  • the lower contrast device 132 of Figure 13 can be replaced by a simple conveyor or roller track, designed to sustain the shuttles 210, whilst the latter travel, with the plates 3 at the predefined distance from the sheet 102, whilst the upper contrast device may be similar to the one designated by 131 in Figure 13 .
  • Such an embodiment is exemplified in Figure 29 . It will be appreciated that the lateral-containment means will be similar to the ones already described previously with reference to Figures 14-17 .
  • the plates 3 are separated from one another so that, in view of the operation of foaming and subsequent passage through the press 130, it is preferable to occlude the gap G on the side of the plates themselves.
  • an adhesive tape is applied in a transverse direction, in the area designated by 3a. This operation can be performed, for example, in the loading station 202.
  • the shuttles 210 can be configured in such a way that, following upon the corresponding coupling, the facing stretches S' of two successive plates 3 partially overlap.
  • the upper sheet will be rendered fixed, via the insulating mass formed by the expanded material, with respect to the plates 3 carried by the shuttles 210, and then reaches the cutting station 180.
  • the cutting station Given that the plates 3 are already separated from one another, just cutting of the sheet 102 and of a corresponding part of insulating material 4 will be performed, as has already been mentioned previously in relation to the first embodiment, in order to obtain the portions that jut out in cantilever fashion S' of the plate 3, for the longitudinal ends of the panels 1.
  • the cutting device can comprise one or more blades for cutting the part of insulating mass 4 present in the ribs 6b-6c substantially along the aforesaid cut.
  • the panels 1 which are by now formed reach the unloading station 190, where they will then be picked up from the corresponding shuttles 210. The latter will then be sent back to the loading station 202 of the plant. It will be appreciated that loading of the lengths 3 on the shuttles 210 and corresponding entry into the plant can be carried out in an automated way, for example, using carousel systems. Likewise, also return of the shuttles 210 to the input station 202 after unloading of the panels 1, as represented schematically by the arrow Z of Figure 22 , can be conveniently automated.
  • the shuttle-conveying system 210 is prearranged so as to include means for obtaining automatic uncoupling between one shuttle and another, in particular in the unloading station 190.
  • said uncoupling means comprise the levers 233.
  • the plant and the methodology described above with reference to Figures 22-28 will enable substantially continuous production - or semi-continuous production - of the panels 1 according to the invention, in an extremely fast and efficient way.
  • the general structure of the plant can be of a classic type, obviously except for the limited adaptations necessary, basically consisting of the provision of the loading station for the shuttles 210, of the system that determines advance thereof along the plant and the possible automated return, of the adaptation of the control of the foaming station, and of the adaptation of the continuous press.
  • the means for rib and bending the lengths 3 are, as has been said, of any type in itself known normally present in any plant for the production of fretted panels and metal sheets.
  • Figure 30 illustrates the case of a panel 1 where two opposite pitches 10 of the upper plate 3 have different lengths and slopes, as already mentioned previously.
  • Figure 31 illustrates the case of a panel in which there is provided a ridge region 11 or region of transition between two pitches 10 which does not present a cusp, but is generally flattened and hence defined via two parallel bending or ridge lines; obviously the region 22 could also have other shapes, for example, arched.
  • Figure 32 illustrates the case of a panel 1, the upper plate 3 of which is generally curved or arched.
  • the plate 3 is in any case bent to define a ridge line or region 11 and two opposite pitches 10.
  • Said shape of the plate 3 can, for example, be obtained via calendering, according to known modalities.
  • Figure 33 illustrates the case of a panel 1, the top sheet 3 of which is shaped so as to present two ridge lines 11, each defining two respective inclined opposite pitches 10, here substantially planar.
  • the sheet 103 is made to advance underneath the sheet 102, but it will be appreciated that the arrangement could be reversed, with kinematic adaptations and reversal of the components described previously, which are evident for a person skilled in the art.
  • the containment members 140 are carried and guided individually - i.e., one by one - by the transmission member 162-163 and by the cam surface defined by the guide 151.
  • one and the same bracket 164 can be configured for supporting in a vertically translatable way a plurality of members 140, for example, two or three; in such a perspective, for example, one such bracket could comprise a plurality of pairs of portions 164a-164b, each pair being configured for coupling with the stem 167 of a respective member 140.
  • the shuttles 210 are guided in a co-ordinated way according to the profile of the sheet itself. In this way, the bent sheet 103 is supported and kept at the correct distance from the sheet 102.
  • the lower contrast device 132 of Figure 13 can then be replaced by a simple conveyor or roller track, designed to sustain the shuttles 210 whilst these travel, with the sheet 103 at the predefined distance from the sheet 102;
  • the upper contrast device may be similar to the one already designated by 131 in Figure 13 .
  • the lateral-containment means will be similar to the ones already described previously with reference to Figures 14-17 .
  • shuttles 210 could be guided underneath the continuous sheet 103 in another point upstream of the press 103, for example, prior to the foaming station 120 or immediately downstream of the bending station 110.

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Claims (14)

  1. Verfahren für die Herstellung vorgefertigter Isolierpaneele (1) für die Bedachung von Gebäuden, umfassend folgende Schritte:
    a) Fortbewegen in Längsrichtung in einer Bewegungsrichtung (X) zweier Bleche (102, 103; 102, 3), die im wesentlichen einander derart überlagern, dass sie einen Zwischenraum (G) zwischen sich bilden, wobei wenigstens ein erstes Blech (103; 3) derart geformt wird, dass es eine entsprechende Längsrippe (6A, 6B) an wenigstens einem seiner beiden gegenüberliegenden Seitenränder (103a, 103b) bildet,
    b) Aufbringen auf die Oberfläche eines Bleches (103; 3), das dem anderen Blech (102) gegenüberliegt, eines chemischen Produktes (122), das in der Lage ist, sich auszudehnen, während sich die Bleche (102, 103; 102, 3) in der Bewegungsrichtung (X) fortbewegen,
    c) Bewirken einer Ausdehnung des chemischen Produktes (122), während sich die Bleche (102, 103; 102, 3) in der Bewegungsrichtung (X) fortbewegen, so dass das ausgedehnte chemische Produkt (4) den Zwischenraum (G) zwischen den beiden Blechen (102, 103; 102, 3) füllt,
    wobei der Schritt c) den Vorgang des Verschließens des Zwischenraumes (G) an den Seitenrändern (103a, 103b) der beiden Bleche (102, 103; 102, 3) für das seitliche Fassen der Ausdehnung des chemischen Produktes (122) umfasst, während sich die Bleche in der Bewegungsrichtung (X) fortbewegen, und der Vorgang des Verschließens des Zwischenraumes (G) an wenigstens einem ersten Seitenrand (1 03a) der Bleche (102, 103; 102, 3) mit Hilfe einer Abfolge von Einfassungselementen (140) ausgeführt wird, die in der Bewegungsrichtung (X) beweglich sind, und
    der Vorgang dadurch gekennzeichnet ist, dass vor Schritt c) wenigstens das erste Blech (103; 3) derart gebogen wird, dass es wenigstens eine Firstlinie (11, 11') bildet, die sich im wesentlichen orthogonal zwischen den beiden entsprechenden Seitenrändern (103a, 103b) erstreckt, wodurch das Profil der Seitenränder (103a, 103b) des ersten Bleches (103; 3) variabel ist, und dass der Vorgang des Verschließens des Zwischenraumes (G) mit Hilfe von Einfassungselementen (140) ausgeführt wird, die ebenfalls in einer im wesentlichen vertikalen Richtung (Y) in entgegengesetzten Richtungen verschiebbar sind und die Einfassungselemente (140) von oben nach unten und von unten nach oben oder umgekehrt beweglich sind, um die Position derselben an das Profil des ersten Seitenrandes (103a) des ersten Bleches (103; 3) anzupassen.
  2. Verfahren nach Anspruch 1, bei dem der Vorgang des Verschließens des Zwischenraumes (G) das Steuern wenigstens eines Teils der vertikalen Verschiebung der Einfassungselemente (140) mit Hilfe einer Anordnung im wesentlichen eines Typs von Nocke und Nockenfolger (151, 151 a, 151 b, 170) umfasst.
  3. Verfahren nach Anspruch 1 oder 2, bei dem der Schritt b) das zyklische Aufbringen von Mengen chemischer Produkte (122) umfasst, die in der Längsrichtung des Bleches (103; 3) variabel sind, wobei die Mengen des chemischen Produktes, die bei jedem Zyklus des Aufbringens aufgebracht werden, zwischen einer Minimalmenge und einer Maximalmenge variabel sind und insbesondere die Mengen chemischer Produkte (122) die bei jedem Zyklus des Aufbringens aufgebracht werden, wenigstens von einer ersten Minimalmenge bis zu einer zweiten Maximalmenge bis zu einer dritten Minimalmenge reichen, wobei
    - die erste Menge im wesentlichen stromabwärts von der Firstlinie (11, 11') oder in einem Bereich des Bleches (103; 3) aufgebracht wird, der einem ersten Längsendbereich eines Paneels (1) entspricht, das zu erzeugen ist,
    - die zweite Menge im wesentlichen an der Firstlinie (11, 11') oder in einem Bereich des Bleches (103; 3) aufgebracht wird, der einem Zwischenbereich des Paneels (1) entspricht, das zu erzeugen ist, und
    - die dritte Menge im wesentlichen stromaufwärts von der Firstlinie (11, 11') oder in einem Bereich des Bleches (103; 3) aufgebracht wird, der einem zweiten Längsendbereich des Paneels (1) entspricht, das zu erzeugen ist.
  4. Verfahren nach einem der vorhergehenden Ansprüche, bei dem sich während Schritt c) die Bleche (102, 103; 102, 3) zwischen einer oberen Kontrastvorrichtung (131) und einer unteren Kontrastvorrichtung (132) bewegen, wobei mit wenigstens einer der Kontrastvorrichtungen (131, 132) Einrichtungen (133; 210) wirkungsmäßig assoziiert sind, die eine Schablone bilden oder zur Bildung derselben eingerichtet sind, die im wesentlichen komplementär zu einem Abschnitt des ersten Bleches (103; 3) ist, das die Firstlinie (11') umfasst.
  5. Verfahren nach einem der vorhergehenden Ansprüche, bei dem die beiden Bleche (102, 103; 102, 3) kontinuierlich oder andernfalls im wesentlichen kontinuierlich zugeführt werden.
  6. Verfahren nach Anspruch 5, bei dem
    - die beiden Bleche (102, 103) aus kontinuierlichen Bahnen bestehen,
    - die Bahn (103), die das erste Blech bildet, gebogen wird, um die Firstlinie (11') vor Schritt c) zu bilden, wobei sich diese Bahn in der Bewegungsrichtung (X) fortbewegt, und nach Schritt c)
    - die beiden Bahnen (102, 103) und das ausgedehnte chemische Produkt (4) in einer Richtung quer zu der Bewegungsrichtung (X) geschnitten werden.
  7. Verfahren nach Anspruch 5, bei dem
    - das zweite Blech aus einer kontinuierlichen Bahn (102) besteht,
    - das erste Blech (3) aus einer Vielzahl von Längen der Bahn besteht, die nacheinander in der Bewegungsrichtung (X) zugeführt werden, und nach Schritt c)
    - die kontinuierliche Bahn (102) und das ausgedehnte chemische Produkt (4) in einer Richtung quer relativ zu der Bewegungsrichtung (X) geschnitten werden.
  8. Verfahren nach Anspruch 6, bei dem das erste Blech (102) durch eine Biegevorrichtung (111) gebogen wird, die in der Lage ist, einen im Betrieb befindlichen Zustand und einen nicht im Betrieb befindlichen Zustand anzunehmen, wobei die Biegevorrichtung in der Bewegungsrichtung (X) insbesondere in einer ersten Richtung von einer ersten Position in eine zweite Position, wenn sich die Vorrichtung (111) in dem Betriebszustand befindet, und einer zweiten Richtung entgegengesetzt der ersten Richtung von der zweiten Position in die erste Position hin- und herbewegt werden kann, wenn sich die Vorrichtung (111) nicht in Betrieb befindet.
  9. Verfahren nach Anspruch 7, bei dem
    - jede Länge der Bahn (3) in Übereinstimmung mit der Firstlinie (11') vor Schritt a) gebogen wird und
    - jede der gebogenen Längen der Bahn (3) auf ein entsprechendes bewegliches Trägerelement (210) geladen wird, wobei eine Anzahl beweglicher Trägerelemente (210) aufeinanderfolgend verbunden wird, um in der Bewegungsrichtung (X) zugeführt zu werden.
  10. Anlage für die Herstellung vorgefertigter Isolierpaneele für die Bedachung von Gebäuden, umfassend:
    a) eine Fortbewegungseinrichtung (104-16, 131-132, 135-136; 104, 202, 106, 130, 210) für die Fortbewegung zweier Bleche (102, 103; 102, 3) in Längsrichtung in einer Bewegungsrichtung (X), wobei die beiden Bleche (102, 103; 102, 3) einander im wesentlichen überlagern, um zwischen sich einen Zwischenraum (G) zu bilden, und wenigstens ein erstes Blech (103; 3) derart geformt wird, dass es eine Längsrippe (6a, 6b) an wenigstens einem seiner beiden gegenüberliegenden Seitenränder (103a, 103b) bildet,
    b) eine Ausgabeeinrichtung (120) zum Aufbringen auf eine Oberfläche eines Bleches (103; 3), das dem anderen Blech (102) zugewandt ist, eines chemischen Produktes (122), das dazu eingerichtet ist, sich auszudehnen, während sich die Bleche (102, 103; 102, 3) in der Bewegungsrichtung (X) fortbewegen,
    c) eine kontinuierliche Presse (130), um eine Ausdehnung des chemischen Produktes (122) zu bewirken, während sich die Bleche (102, 103; 102, 3) in der Bewegungsrichtung (X) fortbewegen, so dass das ausgedehnte chemische Produkt (4) den Zwischenraum (G) zwischen den beiden Blechen (102, 103; 102, 3) füllt,
    wobei die kontinuierliche Presse (130) eine erste seitliche Einfassungsvorrichtung (135) und eine zweite seitliche Einfassungsvorrichtung (136) umfasst, die in der Bewegungsrichtung (X) an den Seitenrändern (103a, 13b) der beiden Bleche (102, 103; 102, 3) beweglich und dazu eingerichtet sind, den Zwischenraum (G) zu verschließen, um die Ausdehnung des chemischen Produktes (122) seitlich einzufassen, während sich die Bleche in der Bewegungsrichtung (X) fortbewegen, wobei wenigstens eine erste seitliche Einfassungsvorrichtung (135) von dem Typ eines geschlossenen Kreises ist und eine entsprechende Vielzahl von Einfassungselementen (140) befördert,
    wobei die Anlage dadurch gekennzeichnet ist, dass sie Biegeeinrichtungen (111) stromaufwärts der kontinuierlichen Presse (130) zum Biegen wenigstens des ersten Bleches (103; 3) umfasst, um in diesem wenigstens eine Firstlinie (11, 11') zu bilden, die sich im wesentlichen orthogonal zwischen den entsprechenden beiden Seitenrändern (103a, 103b) erstreckt, wodurch das Profil der Seitenränder (103a, 103b) variabel ist, und dass die Einfassungselemente (140), die von der ersten seitlichen Einfassungsvorrichtung (135) befördert werden, verschiebbar in einer im wesentlichen vertikalen Richtung (Y) in entgegengesetzten Richtungen angebracht sind und die Einfassungselemente (140) von oben nach unten und von unten nach oben oder umgekehrt beweglich sind, um deren Positionen an das Profil des ersten Seitenrandes (130a) des ersten Bleches (103; 3) anzupassen.
  11. Anlage nach Anspruch 10, bei der die erste seitliche Einfassungsvorrichtung (135) eine Anordnung umfasst, die im wesentlichen vom Typ einer Nocke und eines Nockenfolgers (151, 151 a, 151 b, 170) ist, um wenigstens einen Teil der vertikalen Verschiebung der Einfassungselemente (140) zu steuern.
  12. Anlage nach Anspruch 10 oder 11, bei der die Ausgabeeinrichtungen (120) zum zyklischen Aufbringen chemischer Produkte (122) vorgesehen sind, die in der Längsrichtung des Bleches (103; 3) variabel sind, wobei die Mengen des chemischen Produktes, die bei jedem Zyklus des Aufbringens aufgebracht werden, zwischen einer Minimalmenge und einer Maximalmenge variabel sind und insbesondere die Mengen chemischer Produkte (122) die bei jedem Zyklus des Aufbringens aufgebracht werden, wenigstens von einer ersten Minimalmenge bis zu einer zweiten Maximalmenge bis zu einer dritten Minimalmenge reichen.
  13. Anlage nach Anspruch 10 oder 11, bei der die kontinuierliche Presse (130) eine obere Kontrastvorrichtung (131) und eine untere Kontrastvorrichtung (132) umfasst, wobei mit wenigstens einer der Knickvorrichtungen (131, 132) wirkungsmäßig Einrichtungen (133; 210) assoziiert sind, die eine Schablone bilden oder zur Bildung derselben eingerichtet sind, die im wesentlichen komplementär zu einem Abschnitt des ersten Bleches (103; 3) ist, das die Firstlinie (11') umfasst.
  14. Anlage nach einem der vorhergehenden Ansprüche, umfassend wenigstens eine der folgenden Einrichtungen:
    - eine Zuführeinrichtung (100, 101) zum im wesentlichen kontinuierlichen Zuführen zweier kontinuierlicher Bahnen (102, 103), die das erste und das zweite Blech bilden, und Schneideinrichtungen (180) stromabwärts der kontinuierlichen Presse (130) zum Schneiden der beiden Bahnen (102, 103) und des ausgedehnten chemischen Produktes (4) in einer Richtung quer zu der Bewegungsrichtung (X), wobei die Biegeeinrichtungen insbesondere eine Biegevorrichtung (111) umfassen, die in der Bewegungsrichtung (X) hin- und herbewegt werden kann, und
    - erste Zuführeinrichtungen (100) zum im wesentlichen kontinuierlichen Zuführen einer kontinuierlichen Bahn (120), die das zweite Blech bildet, zweite Zuführeinrichtungen (202, 2010) zum aufeinanderfolgenden Zuführen einer Vielzahl von Längen von Bahnen (3), die das erste Blech bilden, und Schneideinrichtungen (180) stromabwärts der kontinuierlichen Presse (130) zum Schneiden der kontinuierlichen Bahn (120) und des ausgedehnten chemischen Produktes (4) in einer Richtung quer zu der Bewegungsrichtung (X).
EP12177140.6A 2011-07-22 2012-07-19 Verfahren und Anlage zur Herstellung von vorgefertigten Dämmplatten zum Überdachen von Gebäuden Not-in-force EP2548673B1 (de)

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