DE1048860B - Device for making impermeable cladding - Google Patents

Description

GERMAN

The invention relates to the manufacture of impermeable linings such as those used for coverings of buildings or to clad pit rooms, floors, walls, etc.

Claddings of this type have so far generally consisted of a reinforcement layer made of linen, felt, Metal foil and the like, which are soaked under heat with a sealing compound made of bitumen (asphalt, tar or the like) and is coated. While the manufacture of such a panel has so far been almost exclusively With a lot of time, effort and expense on the construction site, one has after a newer one Process developed the possibility of producing ready-to-install sheets of suitable cladding material, where several thin plastic reinforcement bars alternate with layers of bitumen. As a result of extremely low material thickness with which the reinforcement foils enter into the connection, it has been possible to to manufacture the cladding material in strips that are brought to the point of use in rolls and can be laid there in the simplest possible way.

The production of such a sheet suitable for direct laying at the construction site can thereby take place that one is on an endless conveyor belt that is driven with constant movement several places the sealant applies and that between these feed points by means of rollers, which at the same time the management of the reinforcement foils and the spread and the thickness control of the Cause sealant layer, apply one or more reinforcement foils to the sealant. Since the essential components of the cladding material to be produced, the sealant and the Reinforcement, carried at any moment by the endless conveyor belt, is a resistance to heat the reinforcement foils are no longer essential for the success of the manufacturing process. Man can also carry out all desired treatments of the resulting cladding in the course of processing, For example, the foils are pressed, creased, provided with embossed surface patterns and the like.

The plastic for the reinforcement foils can also be used in the raw state, e.g. B. as a powder on the sealant applied by rollers to spread to the foil and in contact with the hot Polymerize layers of sealant.

The inventive \ ^r orrichtung for preparing such impermeable cladding webs (od asphalt, tar, or the like.) By alternate successive layers of bitumen and formed of plastic are, wherein an endless conveyor belt having feed rollers cooperating for the plastic sheets, characterized in that each feed roller has a support roller below the upper run of the device for producing
impervious linings

Applicant:
Societe Francaise de Materiaux

et Produits Hydrofuges
»LA CALLENDRITE«, Paris,

and Pierre Bove,
Blanc-Mesnil, Seine-et-Oise (France)

Representative: Dr. W. Müller-Bore, patent attorney,
Braunschweig, Am Bürgeipark 8

Claimed priority:
France of September 24, 1955 and June 15, 1956

Pierre Bove, Blanc-Mesnil, Seine-et-Oise (France), has been named as the inventor

of the endless conveyor belt is assigned and that the feed rollers to regulate the strength of the successive Bitumen schicriten are adjustable in height.

A special feature of the invention is that each of the feed rollers opposite the associated The support roller is offset in terms of the running direction of the conveyor belt forwards and in height.

Finally, the feed rollers can according to the invention be equipped with heating devices and, if required, provided with an engraved surface, with which any pattern can be embossed on the plastic layers.

It should be noted that protection is only claimed for the combination mentioned in the main claim wi ~ d and partial protection of the individual elements is out of the question.

A device for producing such a cladding with several, for example three reinforcement systems made of plastic is illustrated in the drawings.

Fig. 1 shows schematically in perspective an embodiment of the overall device, while

Figure 2 illustrates in an enlarged longitudinal section a single element of the device;

Fig. 3 shows another embodiment again in perspective of an element while

809 730/183

1 0.48 86Q

Figure 4 is a section through the element of Figure 3;

Figures 5 and 6 are sections through two forms of prevention of cladding sheets produced with the device according to the invention.

• In the drawings the device used includes endless conveyor belt 10 (consisting of a belt, film, fabric, metal cloth or a thin one , Sheet metal strip made of any metal) that. Between a drive roller 11 and a guide roller 12 ge ίο is tense. The drive roller is z. B. by a pair of gears 13, 14 and a gear motor 15 in Movement set.

Support rollers 16 are arranged below the upper run of the conveyor belt 10, expediently with gaps. The lower run of the belt rests on support rollers Π, 18, of which the roller 18 ensures a good wrap around the drive roller 11; it can also be driven if necessary. At 19 a guide and regulating roller is provided which can move back and forth on a slide 20.

Above the conveyor belt IO you can expediently place hold-up sheets, stripping sheets or mouldboards at intervals 21 be arranged for the sealant. Behind each mouldboard 21 is one in height adjustable movable roller 22 arranged over which the reinforcing film 23 runs before it is on the applied by the conveyor belt 10 sealant. When the top layer of sealant is formed is, a mouldboard 24 serves as a guide for the final period in the manufacture of the cladding. the Mouldboards 21 and 24 can be provided with devices that allow the spreading of the sealant facilitate, e.g. B. by heating or brushing the mass. . ....

In Fig. 1 and 2, the rollers 22 and the backup rollers 16 are arranged vertically one above the other. she can form a mangle or a calender, even a press calender when pressing the reinforcement is not carried out in front of or behind the roller 22.

Instead of the support rollers 16, fixed supports 25 can be provided under the conveyor belt 10. Such a Carrier is also located under the squeegee 24. -

At the end of the conveyor belt 10 adjacent to the drive roller 11, a roller 26 is provided, which picks up the cladding formed on the belt 10 and passes it on to a further roller 27.

A heating device 28 is also attached near the roller 11, which ensures that the cladding is detached before it runs onto the roller 26.
. In order to produce the covering, the conveyor belt 10 is put into operation in the direction of the arrow '; then a mass of asphalt-like mixture or the like is applied at 29 in front of the first skimmer plate 21. A first layer 30, which is carried along by the conveyor belt .10 in this way, runs under the scraper plate 21, its lateral expansion by z. B. (not shown) adjustable cheeks .wird. A first reinforcement layer 31 is fed onto this layer, supplied by the first roller 22, the speed of which regulates the tension of this reinforcement. The roller 22 simultaneously ensures the spreading of the sealing compound and regulates its layer thickness. It may be necessary to coat the surface in order to produce suitable adhesion properties between the reinforcement 3 and the layer of mass 30. On the so. A layer of mass 32 covered by the reinforcement layer 31 is applied when passing under the second mouldboard 21 a new asphalt-like mass 32, which is carried away by the conveyor belt under the mouldboard and forms a second layer 33. As it passes under the roller 22, this takes on a second reinforcement layer 34, etc.

In this way, a cladding with a large number of reinforcements is obtained receives its last layer of asphalt under the mouldboard 24.

The asphalt-like masses 29 ... 32 behind the mouldboards get hot on the conveyor belt 10 spread out. When they cool down, they solidify voluntarily or forcibly, with them being connected to the reinforcements glue together.

The machine can contain various additional devices, e.g. B. for heating or cooling the Rollers 22 from the inside or outside. These rollers can also be coated or moistened from the outside, to facilitate the solidification and the removal of the reinforcement or the adhesion of the product to prevent. These rolls can also be used for all presses and surface treatment facilities or wear for smoothing. The ends of the rollers can be heated as well as a Mouldboard that extends over the entire length or only over the ends, for example to remove excess Remove asphalt mass that could otherwise overflow the side edges.

A heating or cooling system can be provided under the conveyor belt 10 in order to prevent the spreading or Adhesion of the layer 30 to regulate.

The lining obtained in this way can on its way between the mouldboard 24 and the roller 26 each experience further treatment. In particular, it can have a surface treatment and a cooling (Water spray, air blowing or immersion).

Likewise, you can make 22 different operations between the rollers, for. B. Post-heating for surface smoothing or for expelling air bubbles from the layers 30., coating the Layer or the reinforcements 31, 34, pressing the reinforcements or cooling.

To make it easier to detach the conveyor belt, you can use a knife that is heated or cold is inserted between the finished cladding and the conveyor belt 10. Or you can do one at 28 Heater under the conveyor belt 10; this causes the underside of the fairing to soften in contact with the belt, and the liner can be peeled off the belt to run onto the roller 26. In this In this case, the cladding gains a veined appearance that in some cases can be retained wherever it is seems desirable, but it can also be made to disappear by a final surface treatment can bring.

In addition, there is a scraper plate 36 or any other cleaning equipment is provided to ensure the cleanliness of the conveyor belt. This cleaning facility can with. post-heating to remove adhering residues to facilitate, or it can also be moistened. or smeared to facilitate its effectiveness.

. After leaving the conveyor belt 10, the cladding runs onto the rollers 26 and 27 to at 35 • ready to be brought out. The path over rollers 26 and -27 can also be used to dth second face of the facing of a surface treatment to undergo. · ■ ~ -. ·

Claims (3)

In order to prevent complete or partial adhesion of the cladding to the conveyor belt in the course of manufacture, the conveyor belt can e.g. B. coat with a silicone-based product. The conveyor belt 10 can be arranged so that its upper run is horizontal or inclined. In an exemplary embodiment, which is shown in FIGS. 3 and 4, each of the rollers 22 is offset towards the front in relation to the support roller 16 in the direction of the direction of passage of the conveyor belt. It is also offset in height on the other hand, so that the conveyor belt is forced to pass in the shape of an S between two successive arrangements. In the zone 46 between the two rollers 16 and 22, the sealing compound 47 is applied, which is carried along between the conveyor belt 10 and the roller 22, this laying the reinforcement layer 23 on the layer thus formed. In order to make it easier to take the mass 47 with you, a shaft 48 which carries a number of disks 49 is attached to it - as already proposed. The shaft 48 is rotated synchronously with the roller 22. The disks 49 take the mass 47 with them, and this rests against the reinforcement 23, the advance of which they support. This avoids stretching and other deformations of the reinforcement 23, which at this point in time is less firm because of the instantaneous increase in temperature. The position of the shaft 48 can be adjusted parallel to itself, depending on its stress. This position adjustment can take place automatically. In order to form the cladding, instead of preformed foils 23, raw plastic in powder form or other form can be used, which is spread on the sealing compound in a coherent layer and which is polymerized by contact with the layers 30, 33 of the sealing compound. The bitumen layer can have a different width than the reinforcement. This can be wider, namely if, for example, the reinforcements are allowed to protrude and connection points are to be made between the reinforcements of the various reduction tracks during installation. It can be narrower and the successive layers can have different widths or be offset from one another. In this way, as shown in FIG. 5, the reinforcements at 41 and 42 can protrude freely at the edges of the cladding without being coated with sealing compound. When laying the cladding, the flexible free ends 41 and 42 of two foils can be connected or welded together or pushed into one another, with the addition of sealing compound securing the connection of the adjacent edges of the two abutting webs. So you can easily get a connection without excessive strength. According to a variant (FIG. 6), the cladding is carried out in such a way that the successive layers 43, 44, 45 are offset transversely with respect to one another. A web is thus obtained, the edge of which easily joins with that of the neighboring web when it is laid, the connection being made with a simple adhesive coating 46 without excess thickness. The endless conveyor belt can be reinforced in order to change the thickness of the cladding produced. Changes in the thickness of the cladding produced can also be obtained by profiling the devices arranged above the upper run of the conveyor belt or the support elements for the conveyor belt. In particular, the cladding can be made with thinner edges; This also gives the possibility of covering neighboring tracks without excess thickness. Patent claims: 1. Apparatus for making impermeable linings from webs that alternate through successive layers of bitumen (asphalt, tar or the like) and plastic where an endless conveyor belt cooperates with feed rollers for the plastic films, characterized in that each feed roller (22) has a support roller (16) under the upper run of the endless conveyor belt (10) is assigned and that the feed rollers (22) for Thickness control of the successive bitumen layers are adjustable in height. 2. Apparatus according to claim 1, characterized in that each of the feed rollers (22) opposite the associated support roller (16) forward in the sense of the direction of passage of the conveyor belt (10) and is offset in height. 3. Apparatus according to claim 1, characterized in that the feed rollers (22) with heating devices are equipped and have an engraved surface with that of the plastic layer any pattern can be imprinted. Considered publications:
German Patent No. 619128;
U.S. Patent No. 2,456,923. For this purpose 2 sheets of drawings © 80S ¹ 730/183 1.59