FI86160C - FOERFARANDE FOER TILLVERKNING AV SANDWICHELEMENT BESTAOENDE AV EN KAERNA AV MINERALULLSLAMELLER OCH YTSKIKT EXEMPELVIS AV PLAOT SAMT EN ANORDNING FOER UTFOERANDE AV FOERFARANDET - Google Patents

Description

1 86160 Process for manufacturing sandwich elements consisting of a core of mineral wool slats and surface layers, for example of plaque and a device for carrying out the method refers to a method for manufacturing sandwich elements consisting of a core of mineral wool slats and surface layers, for example of plaque, more particularly a method according to the preamble of claim 1.

The invention also relates to a device for carrying out the method, more particularly a device according to the preamble of claim 11.

Sandwich elements have long been known in the construction industry. In the manufacture of the elements, the various layers shall be affixed to each other and secured to each other.

Sandwich elements with mineral wool core are generally manufactured today ... say that the sides of the core are provided with glue, after which the surface layers are preferably pivoted in an upright position against the upright core.

* · · * * · • * • «··· According to patent specification AT 370 470, it is known to manufacture ···· a slab core consisting of mineral wool slats with vertical. fiber orientation. The manufacture takes place so that mineral wool plates of the desired size are welded to each other and fixed to each other with glue. From the block consisting of several mineral wool disks on each other, plates are cut off by saying along the vertical path parallel to the sides of the blocks. The sealed:: plate will consist of longitudinal slats whose sides -: -: 35 are glued to each other and in which the fiber orientation is .1. perpendicular to the slab's piano. Conveniently, on one or both sides of the slab, a plate or foil is glued. The script does not give any indication of how the surface layer or layers could be continuously attached to the core.

The object of the present invention is to provide a method and apparatus for continuously adhering surface layers to each side of mineral wool core cores of adjacent to each other, but not attached to each other, longitudinal slats. By attaching surface layers to both sides of the lamellar core, a sandwich element of good pour strength is obtained.

Another object is to provide a device for carrying out the above-mentioned procedure.

The two ends are achieved by giving the method defined in the description introduction and the device the characteristics which emerge from the characterizing part of claim 1 and claim 11, respectively.

The method of the invention provides a continuous manufacture of sandwich elements, the dimensions of which can be varied as required. The modified width and / or height measured of the slab core, as well as the length measured, can be easily programmed into the device, after which the device automatically produces a sandwich element with the new measurements.

The process allows the manufacture of a sandwich element, the core of which consists of loosely arranged longitudinally adjacent mineral wool slats. The slats may be whole or jointed by two or more slats arranged one after the other. The slats may be joined to each other by glue and / or mechanical adjustment of the facing end surfaces, or the end faces of the slats may be collisionless only without interconnection. In the latter case, the number of joints .... and distribution over the lamella Iski van is adapted so as not to weaken the slab's plate heat. By attaching the surface layers ·· ", the continuous sandwich element, whose pour strength is also sufficient as a very long element, is sufficient for use as facade material in buildings. The element can be made in sizes of 12 mx 1200 mm. Production of so long sandwich elements consisting of mineral wool slats and a surface layer attached to them have not been possible anymore.

The process can, of course, be used Sven in the manufacture of smaller elements, whereby whole unsharp slats may come into question. Since the mineral wool fiber and a laminate made of mineral wool are rigid and brittle, it is possible to handle shorter lamellae of 2-3 meters in length, while 12 meters long lamellae must be joined by several.

The surface material, which is preferably thin plaque, is bent at each edge and cut to the desired length synchronously with the formation of the slab core.

In the following, some advantageous embodiments of the method and apparatus of the invention are described with reference to the accompanying figures, of which Figure 1 shows the laying of each surface layer from above, the lamella core having the first surface layer being pivoted to apply the second surface layer to the top, as well. Figure 2 shows the laying of the first surface layer from below, Figure 3 shows another embodiment of coating the first surface layer from below, and Figure 4 shows a schematic five different steps of the application of the surface layer to the slab core, front view and in section, where Figure 4a shows the lamella core of its conveyor before the transfer to the layer coating takes place, and with the arrangement: *: ** the coating for applying adhesive in position above the lower surface layer.

Fig. 4b shows the slat core in position just before the stratification station, (for the sake of clarity, the Upper Glue Slot Assembly has only been placed in Fig. 4a and the corresponding lower arrangement is slotted only in Fig. 4e), Fig. 4c shows the slab core in its 1 position above the lower surface layer and with the lower surface layer elevated 1 position adjacent the lamellar core, FIG. 4d shows the lamellar core on its input plate above the surface layer as in FIG. 2c, side-steering position, temporally just before the slab core feed plate is pulled to the side and the slab core falls on the lower surface layer, and Figure 4e shows the Upper surface layer with glue-lined surface which is pivoted down on the upper surface of the slab core.

Figure 1 is a schematic representation of surface layer coatings. On the upper right is shown the first surface layer element 1a, which is swung up and laid down on the lamellar core 2. The lamella core together with the first surface layer is pivoted so that the surface layer 1a will lie below the core. Thereafter, the second surface layer 1b is swung up and deposited on the upper surface of the lamellar core, whereby the sandwich element after drying is complete.

• · m • · ·

Figure 2 shows schematically another embodiment of attaching the first surface layer 1a to the underside of the slab core. The surface layer 1a 30 is stationary on a substrate, while the lamellar core 2 lies ρέ a conveyor 4 '(the upper figure). The conveyor moves ... (to the left) from the position below the slab core, whereby it falls over the edge of the conveyor on the first surface layer 1a below (the lower figure).

-: - 235. ···. Figure 3 schematically shows another embodiment of attaching the first surface layer to the underside of the lamellar core. The surface layer lies on a conveyor 6 'and the lamellar core on a straight 5,86160 above the conveyor 5' (the upper figure), the conveyors 6 'and 5' moving the surface layer 1a and the lamellar core 2 uniformly St the same pour so that the lamellar core falls over the conveyor 5 'edge (the lower figure) 5 and falling onto the surface layer.

Figures 4a-4e schematically show successive working steps of the device according to the invention. The lamella core K is built on the substrate 6, where the lateral displacement device 10 7 is prepared to slide the lamella core over on its feed plate, which consists of two longitudinal parts 8a and 8b, which move perpendicular to the longitudinal direction of the lamella core and its manufacturing direction. The parts 8a and 8b move towards each other so that they meet directly above the surface layer 1a, and from each other, so that they give access to said surface layer on the conveyor 9. In the position in figure 4a, the parts 8a and 8b are on each side of each other. the surface layer 1a, wherein the portion 8a, which has an extension to the lamellar core conveyor 6, is ready to receive the lamellar core K. The lower surface layer 11a is located on the conveyor 9 and is coated with an adhesive layer by means of the glue applicator 12a. The side control devices 10a and 10b still assume their lateral control position following the control of the previous sandwich element.

In the following steps, Figure 4b, the lateral displacement device 7 has displaced the lateral core laterally on the left-in feed plate 8a, at the same time as the right feed plate 8b is moved to the left to the position where it receives the The left side control device 10a has simultaneously raised to an inactive position, out of the way of the slab core insertion, to a position above the lower "**: surface layer 11a.

In the following steps, Figure 4c, the lamellar core has been transferred onto the V «*** 35 input plates 8a and 8b which meet midway over the lower surface layer, and the lateral displacement device is still visible in its: outermost position, where it pours the lamellar core lamellae in a compressed position against the right side control device 6 86160 10b. The left side control device 10a is inclined to lower to its control position. At the same time, the conveyor 9 for the lower layer 11a has also risen to a position as close as possible to the input plates 8a and 8b.

5

From Figures 4a-4c, it is evident that the lateral displacement of the lamellar core across to a position above the surface layer 1a was effected by 1) displacement by means of the device 7 a distance corresponding to the width of the lamellar core, 2) by lateral transport on the feed plate 8a a distance corresponding to and 3) displacement by means of the device 7 over the feed plate 8b a distance corresponding to the half width of the lamella core. It is obvious that lateral displacement occurred in an energy-efficient and equipment-saving manner. In the following steps, Figure 4d, the lateral displacement device 7 has reverted to its initial position beyond the vane core conveyor 6, while the lateral control device 10a remains in its lower control position. Shortly after this position is taken in, the feed plates 8a and 8b are sheared off and the slab core falls on the lower surface layer. The fall of the slat core on the lower surface layer thus begins in the middle of the core, where the feed plates 8a and 8b successively leave the core unsupported. Due to this breakthrough of the downward sloping of the lower surface layer, the attachment of the lamellar core to the surface layer is smoothed in small steps of movement and is therefore completely controlled.

Thereafter, the lamellar core moves with the lower layer attached to the conveyor 9, along with the side guiding devices, a distance approximately equal to the length of the lamellar core to the place where the upper surface layer is affixed to the lamellar core. Figure 4e shows how the upper surface layer Ib: ... · is coated with a fastening adhesive layer by means of the adhesive application device 12b, after which the surface layer is swung upright in vertical position and swung down on the lamella core. After that, you get sand «· ***. wich elements dry under appropriate temperature and pressure conditions and under suitable heating.

Claims (19)

A method of manufacturing a multilayer element comprising a core and surface layers (1a, Ib; 11a, 11b) formed of adjacent mineral wool lamellae, which are a sheet suitable for the surface material of buildings, for example sheet metal sheet, characterized in that the manufacture takes place in two steps, namely in a first step, forming a unit in which the first surface layer (1a; 11a) is attached below the core (2), and in a second step, the upwardly facing side of the second surface layer (Ib; 11b) 20 is provided with an attachment layer, after which the surface layer is inverted and fitted from above the core. A method according to claim 1, characterized in that the first step is performed so that the upwardly turned side of the first surface layer (1a) is provided with a fixing layer, after which the surface layer is turned and pressed against the core (2) from above, then the unit ''30 formed of the core and the surface layer is inverted so that the surface layer (1a) is below the core. A method according to claim 1, characterized in that the first step is performed so that the upwardly turned side ____ of the first surface layer (1a; 1; 11a); provided with a fastening layer, the core (2) is fitted to the conveying member (4 '; 5'; 8a, 8b) above the surface layer, after which either the conveying member (4 ') is retracted relative to the core 11 86160 so that the core moves over the edge of the conveying member and lands ) on a stationary surface, or both the surface layer (1; 11a) and the core each move with their respective conveying member (5 '; 8a, 8b) in a uniform movement 5 in the same direction so that the core moves over the edge of the conveying member and descends over the surface layer. A method according to claim 1, characterized in that the first step is performed by providing the upwardly facing side of the first surface layer (11a) with an adhesive layer, the core being transferred directly to the substrate (8a, 8b) above the first surface layer. on when the platform retracts aside. 15 Method according to one or more of the preceding claims, characterized in that the surface layers (1; 1a, 1b; 11a, 11b) are profiled. Method according to Claim 5, characterized in that the profiling takes place when the surface layer material is transferred to a cutting device which cuts surface layers of the same length as the lamellar core (2). * 25 Method according to one or more of the preceding claims, characterized in that the fastening layer is 1 air layer. Method according to one or more of the preceding claims "30, characterized in that the core (2) is subjected to a pressure transverse to the longitudinal direction of the lamellae before it is applied to the first surface layer (11a)., ... 35 Method according to one or more of the preceding claims, characterized in that the core (2) is subjected to lateral guidance before it is applied to the first surface layer (11a). 12,861 60 Method according to one or more of the preceding claims, characterized in that the core (2) with its surface layers (1a, Ib; 11a, 11b) fastened is fastened under conditions in which the temperature, pressure and time are selected depending on the type of fastening layers and each other. An apparatus for the continuous production of multilayer elements, the element having a core and surface layers (11a, 11b) formed of adjacent mineral wool lamellae, which is a plate suitable for the surface material of buildings, for example a sheet metal plate, comprising means (6) for conveying the core (2); (12a, 12b) for placing a fixing layer between the lamella plate and each surface layer and means for fixing the surface layers on the core, the operation of which is synchronized with each other, characterized in that the device has lateral displacement means (7) for (8a, 8b) adapted to lower the lamella-20 plate onto the first surface layer (11a), the fastening layers introducing devices (12a, 12b) being adapted to bring said layers to the inner sides of the surface layers (11a, 11b). Device according to claim 11, characterized in that it comprises a device (7) for applying a pressure perpendicular to the longitudinal direction of the lamellae and parallel to the plane of the lamella plate for compressing the lamellae of the lamella plate. • 30 Device according to Claim 12, characterized in that the device for applying pressure perpendicular to the direction of the lamellae and parallel to the plane of the lamella plate is: an element (7) moving in the pressure direction. .. * • 35 ____ Device according to Claim 13, characterized in that the pressure-moving element (7) cooperates with a stationary abutment surface (10b) 13 861 60 located on the opposite side of the lamella plate (2). Device 5 according to one or more of Claims 11 to 14, characterized in that the movable base is formed by two base parts (8a, 8b) which move against each other and away from one another. Device according to Claim 15, characterized in that the two parts (8a, 8b) of the movable base are adapted to move a distance corresponding to half the width of the multilayer element. Device according to Claim 16, characterized in that the second part (8a) of the movable base is at least as wide as the width of the lamella plate. Device according to one or more of Claims 11 to 17, characterized by lateral guide elements 20 (10a, 10b) of the lamella plate (2). Device according to claim 18, characterized in that the second lateral guide element (10b) is fixed and forms said stationary abutment surface and that ... 25 the second lateral guide element (10a) is arranged on the pivot arm. • «