DE10209130B4 - Process for producing roof insulation panels, roof insulation panels and apparatus for carrying out the method - Google Patents

Abstract

method for the production of in particular large-sized roof insulation panels (1), preferably for flat and / or flat roofs, from fiber materials, in particular from mineral fibers, preferably from rock wool, in which from a silicate melt mineral fibers produced and with a binding and / or impregnating agent on a continuous conveyor as Mineral fiber web are laid, the mineral fiber web mechanical Machining, such as longitudinal and / or transverse compressions and fed to a hardening furnace and subsequently along cut surfaces (4) in roof insulation panels (1), characterized in that the roof insulation panels (1) both in their longitudinal extent, as well as in her to the longitudinal extent right-angled transverse extension in precise position on a conveyor aligned and then a trimming and / or calibrating at least their longitudinal surfaces (5, 5 ') are supplied.

Description

The The invention relates to a process for the preparation of in particular large format Roof insulation panels, preferably for flat and / or flat roofs, from fiber materials, in particular from mineral fibers, preferably from rock wool, in which from a silicate melt mineral fibers produced and with a binding and / or impregnating on a continuous conveyor be deposited as mineral fiber web, the mineral fiber web mechanical Machining, such as longitudinal and / or transverse compressions and fed to a hardening furnace and then along of cut surfaces is divided into plates. The invention further relates to roof insulation panels from fiber materials, in particular from mineral fibers, preferably rockwool, with two large, parallel and spaced apart surfaces, over two cut surfaces and two longitudinal surfaces with each other are connected, wherein the cut surfaces at right angles to the longitudinal surfaces and the longitudinal surfaces as well the cut surfaces perpendicular to the big ones surfaces are aligned. After all The invention relates to a device for the production of the above mentioned roof insulation panels and to carry of the above method, with a conveying path, preferably at least one continuous conveyor on the roof insulation panels a packaging station fed become.

Out In the prior art, it is known to be carrying roof shells of flat and / or flat roofs, especially in industrial buildings, such as factory and / or warehouses made of profiled steel sheets manufacture. Although wide-span steel sheets lead to a reduction the construction costs, but also to easily deformable and vibratory trays or roof structures made of such steel sheets. A carrying bowl consists of one or more steel sheets and resting thereon Roof insulation panels. As special for this Roof insulation panels are suitable Mineral fibers, preferably proven rock wool.

These roof insulation panels from mineral fibers have commercially available about 3 - 7 Mass% of a thermosetting curing Mixture of phenol-formaldehyde-urea resins with which the mineral fibers in a known method of the Melting, defibering and collecting a silicate starting material be bound. Given the small amounts of binders, the most common used mineral fiber products in this application area maximum 4.5% by mass can not by nature all mineral fibers are sufficiently bound or will be the largest part the mineral fibers are only interlinked pointwise, in addition to an elastic-resilient behavior of the mineral fiber mass to obtain.

The individual mineral fibers are during coated in the manufacturing process with oil films, a capillary activity of the insulating material and to prevent the loss of condensation in the insulation layer.

The Structure and orientation of the individual mineral fibers in the roof insulation panels can as well how the bulk density can be varied within relatively wide limits. In known production plants are wetted with binders and hydrophobized mineral fibers on an air-permeable continuous conveyor, usually on several consecutively arranged conveyor belts and / or Roller conveyors arranged. The continuous conveyor forms an anthology for one Mineral fiber web, the slightly compressing effect of a sucked by the collecting belt cooling and transport air stream heaped up and subsequently is compressed before the binder in a hardening oven hardened and the mineral fiber web then into individual, Dachdämmplatten forming sections is divided.

In this production results in a laminar structure of the mineral fiber assembly, which is characterized by a largely uniform orientation of the flat-mounted mineral fibers. In this Aufsammeltechnik the individual mineral fibers, it always comes to preferential deposits and from bottom to top decreasing bulk density, which makes negative in the finished mineral fiber product by strong fluctuations in density and thus the mechanical properties of the roof insulation produced therefrom, for example. In order to give the roof insulation panels the necessary serviceability even at the softer points, the gross density of the entire roof insulation panel must be regularly raised. But that makes the roof insulation panel heavy and uneconomical for the manufacturer. Roof insulation panels, which are manufactured with this Aufsammeltechnik, have gross densities of about 150 - 190 kg / m ³ , possibly also higher values.

An advantage of these roof insulation panels, however, in both major axes almost the same and high bending strength and a relative insensitivity of the large surface against compressive stresses, as may occur, for example, when committing a covered with these roof insulation roof surface. However, these advantageous properties are canceled by the use of, for example, 1 to 1.25 m in length and 0.5 to 0.625 m width small-sized roof insulation panels again. In view of relatively wide down Stands between adjacent upper chords of a roof construction in question here and the large number freely projecting between two adjacent upper chords sections of roof insulation panels roof insulation panels are damaged or destroyed very quickly in use if they are not glued or designed at least on viable steam and air barriers made of bituminous membranes.

Area and sloped roofs be produced much more economically by that on the bonding of the individual layers of the roof insulation is dispensed with. When Air barrier and / or vapor barrier are thin polyethylene films loose designed, due to the material no supporting the roof insulation panels functions exercise can. Finally a roof seal is applied to the insulating layer, the at least from films and / or bituminous membranes and optionally consists of a metal plate. The roof waterproofing and at the same time also the roof insulation panels the insulating layer be through in the profiled tray, preferably in the area fixed with their top straps screwed in, with each screw a plate is installed, which prevent pulling through the screw heads should, by the pressure of the screw head on the roof seal on distributed a larger area becomes.

The roof insulation panels used for this purpose have a special Structure on. First become natural Fluctuations in mineral fibers produced per unit time and Variations in the deposition of mineral fiber mass by strong mitigated that as possible thin so-called primary fleece by pendulum movements on a second conveyor in the desired Thickness deposited and so formed, called secondary nonwoven endless mineral fiber web subsequently in promoted a folding device becomes where the mineral fiber web (secondary web) of an intensive longitudinal and simultaneous altitude compression is subjected. The consequences are in production and thus in the direction of funding intensely deformed and steep to the large surfaces of the secondary fleece arranged single mineral fibers. Transverse to the production direction has the secondary web a seemingly laminar structure.

The secondary nonwoven goes through then, eventually after other mechanical processing stations, such as compression areas a hardening furnace, in which the binder cured and the secondary web is fixed in its geometry. After leaving the curing oven and a downstream cooling zone becomes the secondary web trimmed with the help of arranged parallel to the direction of production circular saws. there becomes a several centimeters wider, previously also laterally compacted Strip of secondary web separated, who also saw a certain leadership gives. Produce the fixed saws equipped with large-sized saw blades usually two mutually parallel longitudinal surfaces, the parallel to the conveying direction and thus along of the secondary web run. To one as possible parallel alignment of the longitudinal surfaces to reach, the Axle of the saw blades be exactly aligned. If not carefully enough aligned saws can However, it readily to a slight deviation of the saw blade axis come from the horizontal axis, so that the longitudinal surfaces are not parallel to each other and / or not exactly perpendicular to the large surfaces of the secondary web to be formed roof insulation panels are oriented.

The Width of the production line and thus the distance between the two saws limit the maximum length the roof insulation panels. These roof insulation panels be according to the desired Width by running cross-saws with Saw blades of the endless secondary web separated. The extra-large, coarse-toothed circular Saw blades of the crosscutting are constantly driven because of their mass and cooling. A measuring device determines the current conveyor speed of the secondary web and controls the saw in the conveying direction moving drive with the conveying speed of the secondary web. In the area of the desired Dividing section becomes the cross saw with a feed of several meters per second across the conveying direction through the secondary web pushed. The accuracy with which the area of the separation cut is to be controlled is on the order of ± 2 mm, In addition, deviations from perpendicularity of ± 1.5 - 2.5 mm per 2 m width of the secondary web. Such a precise one Control of the cross section, however, with the known systems and controls not achieved, which is also reflected in the level that through the valid Represents standards becomes.

According to DIN 18165 Part 1 Ausg. 1991 are deviations of ± 2% of the length and Width of the insulation boards from the mean of the sample and a deviation in squareness from 3 mm to 500 mm in length and / or width of the roof insulation panels allowed. Also harmonized in the future European Standard DIN EN 13162 -Specification of factory-made products made of mineral wool, deviations in length of ± 2% in length and ± 1,5% allowed in width. Deviations from perpendicularity in length and width allowed 5 mm / per meter length or width. Regarding perpendicularity in the thickness direction of the insulation boards no requirements are made.

The separated from the secondary web roof insulation panels are then stacked without further treatment, for example, stacked on transport pallets and covered to protect against the weather, for example, with plastic films.

The roof insulation panels are preferably as large format Elements with dimensions of for example 2 m in length and 1.2 m wide and about 40 to 160 mm thickness produced. These roof insulation panels can be transported and laid much faster and react to other on loads on their large surfaces such as Continuous span and are thus from the outset more resistant than small-sized roof insulation panels.

roof insulation panels with steeper, but more directional Arrangement of the individual mineral fibers exhibit at relatively lower Raw densities high values for the compressive stress, for the point load according to DIN 12430 and the transverse tensile strength while the bending tensile strength parallel to the production direction only one One third to one sixth of that bending strength across the production line is. Often break such roof insulation panels already apart during transport to the processing location. The steep Arrangement of the individual fibers leads also to a reduction of the puncture resistance of between the upper chords of the profiled tray arranged area the roof insulation panels.

A variation of these roof insulation panels described above has to avoid in particular the low puncture resistance on an integrated cover layer with about 180 to 220 kg / m ³ particularly highly compressed mineral fibers.

All roof insulation panels Mineral fibers are very stiff in itself, so that the Do not compress marginal areas when laying or only very slightly to let. The roof insulation panels are laid offset on the tray against each other. roof insulation panels with especially directional Bending tensile strengths become common with its longitudinal axis transverse to the profile direction of the tray, so transversely to the upper chords and thus also arranged to one between each two upper straps Bottom of the tray designed. Tolerances in the width of the roof insulation panels to lead Therefore, as well as the skewness in terms of dimensions to gaping joints in the insulating layer. For larger insulation thicknesses already affects the not inconsiderable deflection of the tray forming profiled sheets, as the joints in the tensile area widen, in principle above but to be compressed. This movement already takes place successively in the occupancy of the trays and then again with additional Charges.

The However, gaping joints are thermal bridges that represent the insulating effect significantly reduced. Because the individual tracks of the air-blocking Foils usually not tightly glued together and not can be connected tightly to the adjacent components, in principle always warm air from the building interior through and above the often above the Underbands sagging Stream slides along and finally without further resistance between the roof insulation panels in the interstices between the insulation layer and get loose roof waterproofing. On their undersides immediately forms condensation. If this does not evaporate quickly and over the Roof seals to the outside can diffuse, there is moisture penetration of the roof insulation panels, not only their insulation effect significantly reduced, but also to significant reductions in the Strength and corrosion of the fasteners, namely the Screws and plates leads.

From the DE 23 07 874 B2 For example, a method for producing loose lamella plates made of mineral wool with pronounced fiber orientation in the thickness direction, that is perpendicular to the large surfaces known. These lamellar plates are used, for example, for thermal and acoustic insulation in buildings. The arrangement of several mineral wool layers next to each other, which are divided by sections at right angles to the layer planes, is envisaged. The layers of mineral wool are aligned with their major planes at right angles or with a substantial inclination to the horizontal plane and stacked and glued together, wherein the shocks within the individual mineral wool layers in the stack are offset from each other and the cutting of the lamellar plates takes place in an intermittent operation in a vertical plane. The mineral wool layers are aligned exactly in an upright stack before the stack of mineral wool layers is sawed into individual lamella plates.

outgoing From this prior art, the invention is based on the object to provide a method and an apparatus for carrying out the method, with or with the production of roof insulation panels higher dimensional accuracy in a simple and cost-effective Way possible is to the above-described disadvantages of the prior Exclude technology.

The solution of this problem provides in a method according to the invention, that the plates both in their longitudinal extent, as also aligned in their perpendicular to the longitudinal extent transverse extension aligned exactly on the continuous conveyor and then fed to a trimming of their narrow sides.

by the roof insulation panels according to the invention is as a solution the task provided that the roof insulation panels a maximum deviation in the width of ± 0.5 to 1 mm and / or maximum skewness of the cut surfaces too the longitudinal surfaces of 0.5 to 1 mm based on a length of 1 m.

Finally is as a solution the task a device provided that in the conveyor one in the conveyance einbringbarer stop is arranged, which is aligned at right angles to the conveying direction is and that the attack below a device for cutting and / or machining the substantially parallel to conveying direction extending lateral surfaces of the roof insulation panels is arranged.

Further features of the invention will become apparent from the dependent claims. Reference is made to the following with regard to the embodiment of the invention and its advantages:
In order to avoid open joints between the individual roof insulation panels, there must be no or very little deviation from the nominal values of the dimensions and the right angles at the corners of the roof insulation panels. Furthermore, roof insulation panels are installed on larger roofs, which have been produced at different times and, where appropriate, in different production facilities. According to the invention, roof insulation panels with deviations in the width of about ± 0.5 to 1 mm or a skewness of max. about 0.5 to 1 mm per meter in terms of lengths and widths are produced. These tolerances exclude the drawbacks described at least to the extent that joints between adjacent roof insulation panels are made so small that no thermal bridges form.

To become the roof insulation panels generally with an excess of approx. Made 3 to 10 mm and processed according to the invention.

Around the influence of trailing cross saw on the width tolerances and the skewness to the desired level minimize the insulation boards first made with such an oversize, that after the removal of the surplus areas, the nominal dimensions be achieved.

According to the invention For example, the skewed, different width plates are e.g. against one in the conveyance raised and lowered stop, the exact in a right Angle to the conveying direction is arranged. The alignment of the rising roof insulation board can both about the Slip of smooth conveyor belt or transport rollers of a role Förderes respectively. Alternative or supplementary can the stop in his the incoming insulation board facing surface pressure sensors have, which the position of the incoming insulation board capture and to a computer-aided Transmit control, which further processing of the roof insulation board upon reaching the initiates arrangement.

Around one possible fast, from slippage between the conveyor and the incoming The roof insulating board independent To achieve alignment, the roof insulation panels are after another Feature of the invention by on both sides of the conveyor line arranged, preferably pneumatically or hydraulically driven and in particular based on the determined via the pressure sensors Values of the position of the rising roof insulation board controlled sliding elements in the, for pushed the further processing required situation.

Preferably becomes the roof insulation board to be worked running, on the big one surfaces overlying print bands in the for the editing preferred position held. The processing of The roof insulating board This is done with milling cutters, sanding belts, sanding rollers arranged on both sides of the conveyor track and / or saws, to the roof insulation panel passed by becomes. Alternatively, it can be provided that the abovementioned ablation devices on the surfaces to be processed the roof insulation board to be moved over.

With Help of these ablation devices can also be very thin layers from the surfaces to be processed the roof insulation board be removed, which is conventional Devices and methods is not possible.

Of the Distance, for example, the milling and therefore the width of the plate can be before processing the roof insulation panels be set or, for example, by a laser measuring system each be controlled as a transmitter. In this embodiment it is possible, the surfaces to be processed the roof insulation board for example, wavy form, with the bellies and troughs adjacent to the roof area arranged roof insulation panels Corresponding and in particular sealingly interlock.

By rotating the roof insulation panels after passing through this processing station and the application of the same process technology Also, the initially untreated surfaces, namely calibrated during the separation of the roof insulation panels resulting from the secondary nonwoven cut surfaces and overmoulded, that is, processed according to the longitudinal surfaces.

By appropriate shape of the cutter or in combination with multiple cutters can the side surfaces be formed in various ways. For example, and bulging or convex and concave lateral surfaces are formed during the Put together the roof insulation panels on the roof surface cooperate in the manner of a ball joint, so that a Joint between adjacent roof insulation panels during deflection and / or vibrations of the tray not or not at least opens continuously. Accordingly, of course Other shapes of the lateral surfaces produced.

The Treatment of the lateral surfaces of roof insulation panels with milling can with correspondingly finer, optionally graduated over the height of the lateral surfaces Profiling of these surfaces to a significantly increased compressibility lead the surfaces, so that the roof insulation panels already in this way when laying without much effort close pushed can be.

With to the same destination the side surfaces by several parallel to the large surfaces and to each other Cuts are loosened up. The cuts can also formed as recesses, for example as grooves with a width ≤ 2 mm be.

A Loosening of the mineral fiber structure and thus a localized Reduction of the rigidity of the roof insulation board can be achieved be that the side surfaces by means of at least one, running parallel to the lateral surfaces Axis rotating, preferably toothed pressure roller to be driven and to a depth of up to about 20 mm, but preferably only 3 to 10 mm are subjected to pressure and shear. The limit the structural changes to this depth of possible Deviations from the nominal length and width dimensions leads to none noticeable changes in the Performance characteristics of the roof insulation panels at Charges.

The Elastication can affect different zones in the amount of lateral surfaces be limited. The depth of exposure may vary depending on the orientation The individual mineral fibers will be different, which means that the lateral surfaces, the cross to the original one Production direction are arranged and therefore the above defined cut surfaces are opposite the longitudinal surfaces one have flatter storage of individual mineral fibers and in their structure less intensively loosened than the mineral fibers in the longitudinal surfaces.

The Elastication may be applied to one of the opposite Cut surfaces and / or Longitudinal surfaces are restricted, when laying the roof insulation panels each one elasticized and one non-elasticized lateral area be put together. In this case, has a label one of the side surfaces, especially the elasticized surface proved to be advantageous because hereby the craftsman is given a relocation assistance.

Further Features and advantages of the invention will become apparent from the following Description of the associated Drawing, in the preferred embodiments of the device according to the invention and the roof insulation panels according to the invention are shown. In the drawing show:

1 a section of an apparatus for the production of roof insulation panels in a plan view;

2 a first embodiment of a roof insulation panel in a plan view;

3 a second embodiment of a roof insulation panel in a side view and

4 a third embodiment of a roof insulation panel in a perspective view.

1 shows in a plan view a portion of an apparatus for the production of roof insulation panels 1 , This section of the device follows the well-known, non-illustrated devices of a production plant following a curing oven and a cross-saw, with an unspecified endless Sekundärvlies after curing of a binder contained in the secondary web into individual sections, the following roof insulation panels to be treated 1 is divided.

The roof insulation panels 1 are exaggerated in the figure in the form of a parallelogram, the oblique angle of the roof insulation panels 1 different width to illustrate more clearly. Every roof insulation board 1 has two parallel and spaced apart aligned large surfaces 2 . 3 ( 3 ) as well as two cut surfaces 4 and two longitudinal surfaces 5 on. The cut surfaces 4 caused by the cutting off of a roof insulation board 1 from the non-illustrated secondary web. The longitudinal surfaces 5 extend substantially parallel to the conveying direction shown by an arrow 6 ,

The roof insulation panels 1 consist of mineral fibers 7 which are bound with the binder.

Production-related, the roof insulation panels 1 according to 1 formed obliquely, so that for a proper and thermal bridge-free processing of such roof insulation panels 1 in the area of flat roofs or sloping roofs from these oblique roof insulation panels 1 right-angled limited roof insulation panels 1 must be made. For this purpose, it is necessary in the area of the longitudinal surfaces 5 wedge-shaped sections 8th from the oblique Dachdämmplatte 1 separate.

In the 1 shown device has for this purpose a in the conveying path 9 arranged stop 10 on, which is perpendicular to the conveying direction according to arrow 6 is aligned. The stop 10 Below is a device for cutting and / or machining of the longitudinal surfaces extending substantially parallel to the conveying direction 5 arranged. This device consists in the illustrated embodiment of the device of two rotationally symmetrical, cylindrical-shaped milling 11 , of which in each case one on both sides of the conveying way 9 is arranged.

The milling 11 have milling surfaces 12 which, as will be described below, may have a different contour. Depending on the desired width of the roof insulation board 1 can the milling 11 in their distance from each other or to the central axis of the conveying path 9 be adjusted. The adjustment takes place here for both milling 11 even with respect to the center axis of the conveying path 9 ,

The stop 10 is in a position relative to the conveyor 9 adjustable so that it is in an upper position in the conveying path 9 protrudes and after aligning the auflaufende roof insulation board 1 this releases by moving into a lower position for further promotion. In his the auflaufende roof insulation board 1 facing stop surface 13 indicates the stop 10 Pressure sensors on which a desired orientation of the incoming roof insulation board 1 capture and to a controller, not shown for the stop 10 to transfer. This control gives the rising roof insulation board 1 after reaching the desired orientation on the conveyor 9 free for further processing, with the stop 10 is moved to its lower position for this purpose.

The desired orientation of the roof insulation board 1 is reached when the roof insulation board 1 with their anticipatory cutting surface 4 over the entire surface of the stop surface 13 of the stop 10 abuts and the center axis of the roof insulation board 1 in the area of this anticipatory cut surface 4 with the central axis of the conveying path 9 and thus the central axis of the attack 10 is aligned colinearly. Has the roof insulation board 1 reached this position becomes the stop 10 from the conveyor 9 moved, leaving the roof insulation board 1 the stop 10 downstream area of the conveyor 9 reached. The orientation of the roof insulation board 1 takes place for example by a slip between the roof insulation board 1 and below the roof insulation board 1 arranged, not shown conveyor element, which may be designed as a conveyor belt or as a roller conveyor. Optionally, in addition to the side of the conveying path 9 Slider elements are arranged, which are on the stop 10 rising roof insulation board 1 Align laterally to the above-mentioned Kolinearität the center axis of the roof insulation board 1 , the transport route 9 and the stop 10 manufacture.

The stop 10 Downstream area of the conveyor 9 has a non-illustrated lower conveyor belt and an upper conveyor belt 14 on, which via two pulleys 15 rotates, of which a pulley 15 is driven. The distance between the upper conveyor belt 14 and the lower, the Dachdämmplatte 1 supporting conveyor belt is dependent on the material thickness of the roof insulation board 1 adjustable. Here, the distance between the upper conveyor belt 14 and the lower conveyor belt selected such that the Dachdämmplatte 1 at least during the milling process with the milling 11 is fixed in place and an evasive movement of the roof insulation board 1 in the conveying direction 6 or at right angles to this is not possible.

In the present embodiment according to 1 becomes the roof insulation board 1 at the stationary arranged milling 11 past. Alternatively, however, it can be provided that the roof insulation board 1 in the in 1 shown position stopped and the milling 11 be led past the roof insulation board. Of course, there is also the possibility of a superimposed movement of the milling 11 and the roof insulation board 1 ,

A first embodiment of a processed roof insulation board 1 is in 2 shown. It can be seen that the roof insulation board 1 according to 1 deviating from the skew angle of the roof insulation panels 1 in 1 now right angles between the cut surfaces 4 and the longitudinal surfaces 5 having. The same applies to the angles between the surfaces 2 . 3 and the cut surfaces 4 on the one hand and the longitudinal surfaces 5 on the other hand. The roof insulation board 1 is therefore cuboid.

The longitudinal surfaces 5 are wavy, with each longitudinal surface 5 alternating wave bellies 16 and troughs 17 having. The bellies 16 are designed such that they when joining adjacent roof insulation panels 1 the troughs 17 fill completely and sealingly. The production of the roof insulation board 1 according to 2 takes place by means of a movement of the milling 11 at right angles to the conveyor 9 , where the frequency of movement of the milling 11 in combination with the conveying speed of the roof insulation board 1 in the area of the conveyor 9 the design of the antinodes 16 and troughs 17 certainly. In the embodiment according to 2 are the milling surfaces 12 the milling 11 identically designed to be in the area of both longitudinal surfaces 5 to achieve an identical waveform.

3 shows two roof insulation panels 1 in side view, the formation of a closed insulating layer on a flat or inclined roof in the direction of the arrows 18 be pushed towards each other.

The cut surface 5 the left roof insulation board 1 is different from the cut surface 5 ' the right roof insulation board 1 in that the cut surface 5 an inside vault 20 and the cut surface 5 ' a correspondingly formed bulge 19 having. These contours are made by milling 11 with different milling surfaces 12 generated. Through the bulge 19 and the inside vault 20 are the cut surfaces 5 . 5 ' formed so that they form a kind of ball joint, so that one between the adjacent roof insulation panels 1 forming joint at deflection of the roof insulation panels 1 for example, by a load on their large surfaces 2 or at vibrations of the roof insulation panels 1 not fully open supporting roof substructure, so that this thermal insulation bridges may arise.

The bulge 19 and the inside vault 20 do not extend over the entire cut surfaces 5 respectively. 5 ' but are limited to a central area of these cut surfaces 5 and 5 ' ,

In addition, it can be seen that the roof insulation panels 1 in the area of their large surfaces 2 a compacted layer 21 of mineral fibers 7 exhibit. This compacting layer 21 serves to improve the pressure resistance of the roof insulation panels 1 , It can also be a shift 21 act in the manner of a lamination on the roof insulation board 1 is applied.

Another embodiment of a roof insulation board 1 is in 4 shown.

In addition to the regarding the 2 and 3 described processing of the longitudinal surfaces 5 is in the embodiment of the roof insulation board 1 according to 4 provided that a longitudinal surface 5 a compressible zone 22 which, for example, by loosening the mineral fiber structure in the region of this longitudinal surface 5 is produced. For this purpose, one of the cutter 11 downstream pressure roller (not shown) may be provided, which is formed toothed and the longitudinal surface 5 stressed on pressure and shear. The zone 22 has a thickness of 5 mm.

The invention described above is not based on the production of roof insulation panels 1 limited. Rather, the inventive method and apparatus of the invention can be used whenever insulation boards made of mineral fibers with high accuracy in terms of their rectangular arrangement of their surfaces to each other for the design of a thermal insulation with high efficiency are necessary. For example, with the method according to the invention or the device according to the invention, it is also possible to produce such insulating boards which are used in the façade area, for example in conjunction with a thermal insulation composite system.

Claims (44)

Process for the production of in particular large-sized roof insulation panels ( 1 ), preferably for flat and / or shallow sloping roofs, of fiber materials, in particular of mineral fibers, preferably rockwool, in which produced from a silicate melt mineral fibers and stored with a binder and / or impregnating agent on a continuous conveyor as a mineral fiber web, the mineral fiber web mechanical Processes such as longitudinal and / or transverse compression and fed to a hardening furnace and then along cut surfaces ( 4 ) in roof insulation panels ( 1 ), characterized in that the roof insulation panels ( 1 ) aligned in a positionally accurate on a conveyor both in its longitudinal extent, as well as in its transverse to the longitudinal extent extending transverse extent and then a trimming and / or calibration of at least their longitudinal surfaces ( 5 . 5 ' ). Method according to claim 1, characterized in that the roof insulation panels ( 1 ) at least during the trimming between two on their large surfaces ( 2 . 3 ) resting pressure belts ( 14 ) are clamped. A method according to claim 1, characterized in that the trimming with at least two milling ( 11 ), Abrasive belts, abrasive rollers and / or Sawing is performed, which are arranged on both sides of the conveyor and preferably adjustable in their distance from one another. Method according to claim 1, characterized in that the cut surfaces ( 4 ) of the roof insulation panels ( 1 ) are aligned at right angles to the longitudinal direction of the conveyor. Method according to claim 1, characterized in that the roof insulation panels ( 1 ) after the trimming of their longitudinal surfaces ( 5 . 5 ' ) rotated by 90 ° and a trimming of the cut surfaces ( 4 ). Method according to claim 1, characterized in that the roof insulation panels ( 1 ) in the region of their longitudinal surfaces ( 5 . 5 ' ) and / or cut surfaces ( 4 ) are produced with an excess of 3 to 25 mm, in particular 3 to 10 mm and fed to the trimming. Method according to claim 1, characterized in that the roof insulation panels ( 1 ) to their orientation against a perpendicular to the conveying direction ( 6 ) extending, liftable and retractable stop ( 10 ) in the transport route ( 9 ) and for full-surface installation of in the conveying direction ( 6 ) front cutting surface ( 4 ) at the stop ( 10 ) are pushed. A method according to claim 7, characterized in that the required alignment of the roof insulation panels ( 1 ) at the ready ( 10 ) arranged pressure sensors is determined. Method according to claim 1, characterized in that the roof insulation panels ( 1 ) over the side of the conveying path ( 9 ), preferably hydraulically and / or pneumatically driven manipulators are moved in the required alignment for trimming. A method according to claim 3, characterized in that the roof insulation panels ( 1 ) on the milling ( 11 ) or the milling ( 11 ) on the roof insulation panels ( 11 ) are moved past, or the movement of the roof insulation panels ( 1 ) and milling ( 11 ) is combined. A method according to claim 3, characterized in that the milling ( 11 ), Sanding belts, sanding rollers and / or saws on opposite surfaces ( 4 . 5 . 5 ' ) of the roof insulation panels ( 1 ) corresponding recesses ( 20 ) and protrusions ( 19 ). A method according to claim 3, characterized in that the distance of the milling ( 11 ), Grinding belts, grinding wheels and / or saws by means of a laser measuring system, preferably in dependence of a computer-aided order management is set. Method according to claim 1, characterized in that the longitudinal surfaces ( 5 . 5 ' ) and / or cut surfaces ( 4 ) wave-shaped or in another, the toothing adjacent arranged roof insulation panels ( 1 ) permitting geometric training calibrated and trained. A method according to claim 1, characterized in that for elastification of the side surface areas of the roof insulation panels ( 1 ) in the longitudinal surfaces ( 5 . 5 ' ) and / or cut surfaces ( 4 ) substantially parallel to the large surfaces ( 2 . 3 ) of the roof insulation panels ( 1 ) running incisions and / or recesses, such as grooves with a maximum depth of 5 mm, preferably 2 mm are introduced. A method according to claim 1, characterized in that for elastification of the side surface areas of the roof insulation panels ( 1 ) the longitudinal surfaces ( 5 . 5 ' ) and / or cut surfaces ( 4 ) Profiles about the height of the roof insulation panels ( 1 ), in particular milled and / or ground. A method according to claim 1, characterized in that for elastification of the side surface areas of the roof insulation panels ( 1 ) the longitudinal surfaces ( 5 . 5 ' ) and / or cut surfaces ( 4 ) are loaded via a roller on pressure and / or shear. A method according to claim 16, characterized in that preferably with a toothed roller, a range of up to 20 mm, preferably between 3 and 10 mm in the direction of the surface normal of the longitudinal surfaces ( 5 . 5 ' ) and / or cut surfaces ( 4 ) is elasticized. A method according to claim 16, characterized in that the elastification of the longitudinal surfaces ( 5 . 5 ' ) and / or cut surfaces ( 4 ) locally, in particular over the thickness of the roof insulation panels ( 1 ) is limited. A method according to claim 16, characterized in that only one of the oppositely disposed longitudinal surfaces ( 5 . 5 ' ) and / or cut surfaces ( 4 ) is elasticized. Roof insulation panels of fibrous materials, in particular of mineral fibers, preferably of rock wool, produced by the method according to one of Claims 1 to 19, having two large surfaces arranged parallel to one another and spaced apart from each other ( 2 . 3 ), which have two cut surfaces ( 4 ) and two longitudinal surfaces ( 5 . 5 ' ), where at the cut surfaces ( 4 ) at right angles to the longitudinal surfaces ( 5 . 5 ' ) and the longitudinal surfaces ( 5 . 5 ' ) as well as the cut surfaces ( 4 ) at right angles to the large surfaces ( 2 . 3 ), characterized by a maximum deviation in the width of ± 0.5 to 1 mm and / or maximum skewness of the cutting edges ( 4 ) to the longitudinal surfaces ( 5 . 5 ' ) from 0.5 to 1 mm in relation to a length of 1 m. Roof insulation panels according to claim 20, characterized in that the cut surfaces ( 4 ) and / or longitudinal surfaces ( 5 . 5 ' ) with recesses ( 20 ) and / or protrusions ( 19 ) are formed, so that adjacently arranged cut surfaces ( 4 ) and / or longitudinal surfaces ( 5 . 5 ' ) sealingly interlock. Roof insulation panels according to claim 21, characterized in that the recesses ( 20 ) and / or projections ( 19 ) an at least limited pivoting mobility of the adjacently arranged longitudinal surfaces ( 5 . 5 ' ) and / or cut surfaces ( 4 ) allow each other. Roof insulation panels according to claim 20, characterized in that the recesses ( 20 ) concave and the projections ( 19 ) are formed corresponding convex. Roof insulation panels according to claim 20, characterized in that the cut surfaces ( 4 ) and / or longitudinal surfaces ( 5 . 5 ' ) in the longitudinal direction have a wave form, which at oppositely disposed cut surfaces ( 4 ) and / or longitudinal surfaces ( 5 . 5 ' ) are formed correspondingly such that in the region of a wave belly ( 16 ) of a cut surface ( 4 ) and / or longitudinal surface ( 5 . 5 ' ) a corresponding wave trough ( 17 ) in the opposite cut surface ( 4 ) and / or longitudinal surface ( 5 . 5 ' ) is arranged. Roof insulation panels according to claim 20, characterized in that at least one of the cut surfaces ( 4 ) and / or longitudinal surfaces ( 5 . 5 ' ) a zone (preferably compressible by an elastification and / or a certain fiber orientation) ( 22 ) having. Roof insulation panels according to claim 25, characterized in that the compressible zone ( 22 ) over the entire length of the cut surface ( 4 ) and / or longitudinal surface ( 5 . 5 ' ). Roof insulation panels according to claim 25, characterized in that the compressible zone ( 22 ) has a depth of up to 20 mm, in particular 3 to 10 mm. Roof insulation panels according to claim 25, characterized in that the compressible zone ( 22 ) is subdivided into different areas that exceed the height of the cut surfaces ( 4 ) and / or the longitudinal surfaces ( 5 . 5 ' ) are arranged distributed. Roof insulation panels according to claim 20, characterized in that the cut surfaces ( 4 ) one of the elastification of the longitudinal surfaces ( 5 . 5 ' ) different, preferably at flat mineral fibers ( 7 ) have a lower elasticity. Roof insulation panels according to claim 20, characterized in that the cut surfaces ( 4 ) and / or longitudinal surfaces ( 5 . 5 ' ) at least one, preferably several, in particular parallel to the large surfaces ( 2 . 3 ) running incisions and / or recesses. roof insulation panels according to claim 29, characterized in that the incisions and / or recesses have a maximum width of 2 mm. Device for producing roof insulation panels ( 1 ) according to claim 20 and for carrying out the method according to claim 1, with a conveying path ( 9 ), preferably at least one continuous conveyor on which the roof insulation panels ( 1 ) are conveyed to a packaging station, characterized in that in the conveying path ( 9 ) in the funding path ( 9 ) insertable stop ( 10 ) is arranged at right angles to the conveying direction ( 6 ) and that the attack ( 10 ) below means for cutting and / or machining the substantially parallel to the conveying direction ( 6 ) extending lateral surfaces ( 4 . 5 . 5 ' ) of the roof insulation panels ( 1 ) is arranged. Apparatus according to claim 32, characterized in that the stop ( 10 ) Has pressure sensors, the desired orientation of the incoming roof insulation ( 1 ) and to a controller for the attack ( 10 ) to transfer. Apparatus according to claim 32, characterized in that in the region of the stop ( 10 ) are arranged on both sides of the conveying path slider elements, which on the stop ( 10 ) rising roof insulation board ( 1 ) align. Apparatus according to claim 32, characterized in that the means for cutting and / or machining the substantially parallel to the conveying direction ( 6 ) extending lateral surfaces ( 4 . 5 . 5 ' ) of the roof insulation panels ( 1 ) made of at least two rotationally symmetric milling ( 11 ), which are on both sides of the conveying path ( 9 ) are arranged. Apparatus according to claim 35, characterized ge indicates that the milling ( 11 ) the lateral surfaces ( 4 . 5 . 5 ' ) of the roof insulation panels ( 1 ) downstream grinding devices and / or saws are connected upstream. Apparatus according to claim 35 or 34, characterized in that the milling ( 11 ), the grinding devices and / or the saws in their distance from the conveying path ( 9 ) adjustable and / or parallel to the conveying path ( 9 ) are movable. Apparatus according to claim 35, characterized in that the milling ( 11 ) different configurations of their milling surfaces ( 12 ) exhibit. Apparatus according to claim 38, characterized in that the milling surfaces ( 12 ) are formed so that they in oppositely disposed lateral surfaces ( 4 . 5 . 5 ' ) of the roof insulation panels ( 1 ) corresponding recesses ( 20 ) and protrusions ( 19 ). Apparatus according to claim 38, characterized in that a milling surface ( 12 ) a concave surface shape and the second milling surface ( 12 ) has a corresponding convex curvature. Apparatus according to claim 32, characterized in that in the region of the device for cutting and / or machining of the substantially parallel to the conveying direction ( 6 ) extending lateral surfaces ( 4 . 5 . 5 ' ) of the roof insulation panels ( 1 ) Printing tapes ( 14 ) arranged on the large surfaces ( 2 . 3 ) of the roof insulation panels ( 1 ) rest. Apparatus according to claim 32, characterized in that the means for cutting and / or machining of the substantially parallel to the conveying direction ( 6 ) extending lateral surfaces ( 4 . 5 . 5 ' ) of the roof insulation panels ( 1 ) at least one preferably toothed pressure roller is arranged downstream, which on the lateral surfaces ( 4 . 5 . 5 ' ) of the roof insulation panels ( 1 ) for elastification of at least partial areas of the lateral surfaces ( 4 . 5 . 5 ' ) acts. Apparatus according to claim 32, characterized in that the means for cutting and / or machining of the substantially parallel to the conveying direction ( 6 ) extending lateral surfaces ( 4 . 5 . 5 ' ) of the roof insulation panels ( 1 ) at least one cutting tool is connected downstream, which cuts and / or recesses in the lateral surfaces ( 4 . 5 . 5 ' ) of the roof insulation panels ( 1 ) parallel to the large surfaces ( 2 . 3 ) are aligned. Apparatus according to claim 32, characterized in that the means for cutting and / or machining of the substantially parallel to the conveying direction ( 6 ) extending lateral surfaces ( 4 . 5 . 5 ' ) of the roof insulation panels ( 1 ) a turning station and the turning station another means for cutting and / or machining the substantially parallel to the conveying direction ( 6 ) extending lateral surfaces ( 4 . 5 . 5 ' ) of the roof insulation panels ( 1 ), so that all four lateral surfaces, namely the cut surfaces ( 4 ) and the longitudinal surfaces ( 5 . 5 ' ) of the roof insulation panels ( 1 ) are editable.