EP0320504B1 - Process and device for manufacturing roof covering board with transverse integrally formed flange - Google Patents

Process and device for manufacturing roof covering board with transverse integrally formed flange Download PDF

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Publication number
EP0320504B1
EP0320504B1 EP87904041A EP87904041A EP0320504B1 EP 0320504 B1 EP0320504 B1 EP 0320504B1 EP 87904041 A EP87904041 A EP 87904041A EP 87904041 A EP87904041 A EP 87904041A EP 0320504 B1 EP0320504 B1 EP 0320504B1
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EP
European Patent Office
Prior art keywords
station
compacting
cavity
pallets
compression
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP87904041A
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German (de)
French (fr)
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EP0320504A1 (en
Inventor
Günter Jöst
Manfred Weisweiler
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Braas GmbH
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Braas GmbH
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Filing date
Publication date
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Priority to AT87904041T priority Critical patent/ATE80829T1/en
Publication of EP0320504A1 publication Critical patent/EP0320504A1/en
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Publication of EP0320504B1 publication Critical patent/EP0320504B1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B13/00—Feeding the unshaped material to moulds or apparatus for producing shaped articles; Discharging shaped articles from such moulds or apparatus
    • B28B13/02—Feeding the unshaped material to moulds or apparatus for producing shaped articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B1/00—Producing shaped prefabricated articles from the material
    • B28B1/14—Producing shaped prefabricated articles from the material by simple casting, the material being neither forcibly fed nor positively compacted
    • B28B1/16—Producing shaped prefabricated articles from the material by simple casting, the material being neither forcibly fed nor positively compacted for producing layered articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
    • B28B3/02—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form
    • B28B3/10—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form each charge of material being compressed against previously formed body
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B5/00—Producing shaped articles from the material in moulds or on moulding surfaces, carried or formed by, in or on conveyors irrespective of the manner of shaping
    • B28B5/02—Producing shaped articles from the material in moulds or on moulding surfaces, carried or formed by, in or on conveyors irrespective of the manner of shaping on conveyors of the endless-belt or chain type
    • B28B5/026—Producing shaped articles from the material in moulds or on moulding surfaces, carried or formed by, in or on conveyors irrespective of the manner of shaping on conveyors of the endless-belt or chain type the shaped articles being of indefinite length
    • B28B5/028—Producing shaped articles from the material in moulds or on moulding surfaces, carried or formed by, in or on conveyors irrespective of the manner of shaping on conveyors of the endless-belt or chain type the shaped articles being of indefinite length the moulding surfaces being of definite length, e.g. succession of moving pallets, and being continuously fed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/0088—Moulds in which at least one surface of the moulded article serves as mould surface, e.g. moulding articles on or against a previously shaped article, between previously shaped articles

Definitions

  • the invention relates to a method for producing roofing tiles with a transverse flange formed on the underside of the tile, wherein a continuous layer of curable plastic material is applied and applied to sub-molds, each of which has a recess for forming the transverse flange and which are fed to a coating station in a continuous strand Forming roller and smoother are compacted separately in the depressions and, if necessary, profiled, and the compacted material layer is cut in a cutting station to form roof covering plate moldings, which are then hardened, if appropriate at elevated temperature, and then removed from the mold.
  • the invention further relates to a device which is particularly suitable for carrying out the method.
  • a device of this type is known from US Pat. No. 3,122,812.
  • the depressions provided for the transverse flange in the sub-molds and the coating of these sub-molds with a continuous fresh concrete layer take place simultaneously when the sub-molds pass through a coating station.
  • the fresh concrete slips under the effect of its own weight from a filling funnel into the depressions of the lower molds and is compacted as it passes through a shaping roller.
  • targeted compression can also be carried out within the depressions.
  • an elongated compacting tool aligned transversely to the conveying direction is inserted into the depression through the continuous fresh concrete layer already produced on the lower molds and is intended to compact the fresh concrete there within the depression.
  • transverse parts are, for example, the so-called lobes on a pent roof cover plate or an eaves plate and the end flange on the end ridge caps.
  • transversely extending hanging strips of greater length are also required on roofing slabs intended for particularly steep roof pitches. All these transversely extending molded parts, such as rags, flanges, strips, webs and the like are referred to as a cross flange.
  • roofing panels which differ in terms of the length of the respective transverse flange should also be able to be produced without any significant conversion work.
  • the object for the method is achieved in that a metered amount of the plastic material is first introduced into the depression of the respectively supplied lower mold in a loading station, and then compression of the plastic material located in the depression in the lower corners of the in a first compression station Deepening is carried out, then the remaining material in the deepening is compacted in a second compacting station, and then the continuous material layer is applied to the lower mold in the coating station.
  • the method is suitable in the same way for the production of flat roofing panels as for profiled roofing panels, on the underside of which a cross flange is formed.
  • the roof covering panels can consist of materials typically provided for this purpose, such as concrete, ceramic masses and comparable artificial stone materials.
  • the invention will be described in particular with reference to the production of profiled pent roof end plates made of concrete, without the intention of restricting the invention.
  • the filling of the depression in the lower molds with plastic material for producing the transverse flange and, on the other hand, the application of the continuous layer of material to the lower molds is separated from one another in terms of time and space.
  • At least two different measures are provided for compacting the plastic material introduced into the depression.
  • the plastic material is then compressed in the lower corners of the depression in a first compression station, and the remaining material in the depression is then compressed in a second compression station.
  • the feed station is expediently overfilled in order to take into account the reduction in the volume of material that occurs during compression. As tests have shown, part of the material located above the depression and also part of the material introduced into the depression are displaced onto the lower mold next to the depression during compression. For complete filling of the depression after the first compression, it is therefore provided that material located on the lower mold next to the depressions from the second compression station is introduced into the depressions by means of a scraper device.
  • high viscosity material such as fresh concrete and the like
  • the sub-molds with larger depressions after the compaction of the material in the lower corners of the depressions provide a one-time compaction of the remaining material not sufficient to achieve the required strength and pore tightness of the entire lower part of the cross flange. It is therefore expedient that when using sub-molds with larger depressions, after the compression of the plastic material in the lower corners of the depression, in an additional compression station, a pre-compression of the remaining material in the depression is carried out.
  • roofing slabs that differ in the length of the transverse flange.
  • sub-molds with corresponding depressions are used, the size of the depression of the respective sub-mold is detected by means of one or more sensors, and depending on the sensor signal, a correspondingly metered amount of plastic material is introduced into the depressions.
  • the device for the production of roofing panels with a cross flange formed on the underside of the panel contains a coating station which can be supplied with hardenable plastic material to form a continuous layer of material on a continuous strand of displaceable lower mold driven by a conveyor, each having a recess to form the cross flange have, further a compression station for the compression of the material located in the depressions, as well as a shaping roller and a smoother for the compression and optionally profiling of the continuous material layer located underneath on the lower molds, and also a cutting station for cutting the continuous, compressed material layer into individual roofing tile shaped pieces.
  • a first compression station is provided behind a loading station, in which a predetermined amount of plastic material is introduced into the recess of the respective lower mold, which has two compacting tools which are arranged in such a way that they are adapted to the advance of the lower molds Movement into deepening, compress the plastic material located in the lower corners of the depression, at least one further compression station is provided, in which at least one compression tool, adapted to the advance of the submoulds, can be moved in and out of the depression of the relevant subform in order to compress it of the remaining material in the depression, and then the coating station is provided for applying the continuous layer of material to the lower molds.
  • the intended loading station is expediently assigned a rotatably arranged, multi-vane cell wheel, by the rotation of which in sections, a certain amount of plastic material can be introduced into the depression of the respectively supplied lower mold.
  • Each compaction tool of the first compaction station preferably has a plunger which is to be fed on a partial circular path of a lower corner of the depression via a leg which is angled or bent with it and which is pivotally fastened in the compression station at its free end.
  • this first compression station contributes significantly to improving the strength and dimensional stability of the transverse flange formed on the underside of the plate.
  • the free ends of the legs of the compression tools can be fixed at different heights in the compression station. This ensures that the compression tools can also carry out the compression of the plastic material in the corner areas with larger recesses.
  • a second compression station is provided following this first compression station, which has an elongated compression tool oriented transversely to the conveying direction, which essentially fills the cross section of the depression, thereby enabling compression of the entire material in the depression.
  • a scraper device can be provided in front of the second compression station, the scraper edges of which are essentially flush with the upper side of the lower molds. Refilling of the depression with plastic material is thus achieved before passing through the second compression station.
  • the device according to the invention preferably has an additional compression station, which is arranged between the first compression station and the stripper device, as seen in the conveying direction of the lower molds.
  • This compression station serves as a precompressor and is only actuated when a lower mold with a larger depression for producing a roof covering plate with a transverse flange of greater length passes through this compression station.
  • this pre-compressor also has an elongated compression tool oriented transversely to the conveying direction on, which essentially fills the cross section of the recess.
  • Pneumatic or hydraulic piston-cylinder units are advantageously provided as the actuating device for the compression tools.
  • the additional compression station which is arranged in front of the stripping device and the second compression station, it is advantageous if, seen in the conveying direction of the sub-molds, a further stripping device is provided in front of the additional compression station, the stripping edges of which are essentially flush with the top of the sub-molds. This ensures that the depression is refilled before it passes through the additional compression station.
  • roof covering panels with a cross flange of different lengths should be able to be produced with the device according to the invention.
  • sub-molds are provided within a sub-mold strand that differ in the size of their depressions.
  • At least one sensor is arranged adjacent to the conveying path of the lower molds, which detects the size of the recess of the respective lower mold and feeds the sensor signals generated thereby to the loading station and one or more compression stations .
  • the sensor signals are used to control the amount of plastic material at the loading station, which is introduced into the recess of the respectively supplied lower mold. For example, depending on the sensor signal, the cellular wheel performs one or more rotations in sections, depending on whether the lower molds have a larger or smaller depression.
  • the sensor signals are used to ensure the correct height of the free ends in the first compression station adjust the leg of the compaction tools so that the plungers of these compaction tools can penetrate into the lower corner region of the depression of the lower mold fed to each of these stations.
  • the sensor signals also serve to selectively actuate the additional compression station if there is a lower mold with a larger recess there.
  • the conveying device is designed for intermittent advancement of the lower molds and has a substantially reversible, pneumatic or hydraulic piston-cylinder arrangement, by means of which a feed carriage engaging the secondary molds can be displaced a long way in the conveying direction.
  • a conveyor of this type is known from German Offenlegungsschrift 29 45 553. With reference to this laid-open document, the content thereof - insofar as it is helpful or necessary to explain the present invention - should also be made part of the present documents.
  • the method according to the invention is suitable both for the production of flat and profiled roofing tiles, on the underside of which a cross flange is molded. It will preferably be used in the manufacture of pent roof end panels, eaves panels and end ridge caps.
  • profiled roofing slabs sub-molds with appropriate profiling for the slab part are to be provided, and then, if necessary matched wipers except the corresponding shaping roller and the smoother required.
  • the method is also readily adaptable to the various known materials for the production of roofing tiles.
  • it is intended for the production of concrete roofing slabs.
  • FIG. 1 shows a perspective view - as part of an overall system for the manufacture of pent roof tiles - a section of a device 1 according to the invention with loading station 20, first compression station 40, second compression station 60, additional compression station 70, coating station 78 and cutting station 79, with better visibility the conveyor 10 at the inlet 2 of the device 1 some sub-molds 7, 7 'with sub-mold supports 6 are omitted.
  • the lower molds 7, 7 'for the production of loft roof tiles 90, 90' are placed in front of or at the inlet 2 on the lower mold supports 6 which run in an uninterrupted strand and with this from the conveyor unit 10 in the conveying direction 4 through the work stations attached to the frame 3 of the device 1 pushed, namely the loading station 20, the first compression station 40, a stripping device 85, the additional compression station 70, a stripping device 80, the second compression station 60, the coating station 78 and the cutting station 79.
  • the conveyor device 10 includes a horizontally operating piston-cylinder arrangement with a cylinder 11, on the piston 12 of which a feed slide 13 is attached.
  • the feed slide 13 bears against a lower mold support 6.
  • the further structure of the conveyor device 10 for the cyclical advancement of the lower molds 7, 7 ' is known from German Offenlegungsschrift 29 45 553.
  • At least one sensor 5 is attached to the frame 3 of the device 1, which detects and detects the size of the depression 8, 8 'of the lower mold 7, 7' shown in FIG Generates a signal that is fed to the individual workstations.
  • the lower mold supports 6 with the lower molds 7, 7 'placed thereon are guided in a lower mold guide 15 as they pass through the device 1, such as is explained in detail below with reference to FIG. 3.
  • the loading station 20 shown in FIGS. 2 and 3 is fixedly attached to the frame 3 and has a filling funnel 21, a filling box 22, a rotatably arranged, multi-wing cellular wheel 24, a first, pneumatically operated piston-cylinder arrangement 31, 30 and one second, pneumatically actuated piston-cylinder arrangement 33, 32 with appropriate fastening and linkage.
  • the inner width b of the filling box 22 is chosen so that an intermediate space between two wings 25 of the cellular wheel 24 contains the necessary amount of concrete 35 for the formation of a short desk cloth 92 shown in FIG. 8 with the length l 1.
  • the four-winged cellular wheel 24 in the illustration is rotatably supported by a continuous shaft 27 with a freewheel 28 in bearing plates 23 which are fastened on both sides of the filling box 22.
  • the cellular wheel 24 is rotated in sections by the cylinder 30, which is only shown in FIG. 3 and can be pivoted on the frame 3 in the conveying direction 4, the piston 31 of which engages the freewheel 28 via a lever 29, which in turn acts on the one from the filling box 22 protruding part of the shaft 27 sits.
  • a further cylinder 32 is arranged on the filling box 22 above the cell wheel 24, the piston 33 of which extends down to a wing 26 of the multi-wing cell wheel 24 protruding horizontally from the filling box 22.
  • the filling box 22 of the loading station 20 is from a - not shown - material conveyor belt, which is arranged above the device 1, with hardenable plastic material 34, in the present case with concrete 34, for the production of the transverse flanges or desk cloths shown in FIGS. 8 and 9 92, 92 'of the pent roof end plates 90, 90'.
  • the four-bladed cellular wheel 24 is rotated by 90 ° in the direction of rotation 36 when the piston 31 of the cylinder 30 is extended, since the freewheel 28 on the shaft 27 locks in the rotational direction 36 and thus entrains the shaft 27 of the four-bladed cellular wheel 24.
  • the freewheel 28 becomes effective so that the shaft 27 is not rotated.
  • a wing 26 protruding horizontally from the filling box 22 runs onto the piston 33 of the cylinder 32 which is extended downward as a stop.
  • the retracted position of the piston 33 is shown in dashed lines in FIG. 2.
  • the sensor 5 shown in FIG. 1 detects a lower mold 7 'with a recess 8' for a long desk flap 92 'shown in FIG. 9 with the greater length 12, then the rotation of the four-winged cellular wheel 24 by the cylinder 30 is twice carried out, so that twice the amount of concrete is poured into the cavity 8 'for the long desk cloth 92' onto the lower mold 7 '.
  • the recess 8 'with the depth t2 for the long desk cloth 92' is indicated in FIGS. 2 and 3 with the lower, dashed line.
  • the depression 8 with the depth t 1 for the short desk lobe 92 is shown in Fig. 2 and indicated in Fig. 3 with the upper dashed line.
  • the lower mold 7, 7 ' is located on a lower mold support 6 which is guided in the vertical guide strips 16 and on the horizontal support beam 17 of the lower mold guide 15 and is displaced in the conveying direction 4.
  • the first compression station 40 shown in FIGS. 4 and 5 is fastened to the frame 3 of the device 1 via guide columns 41. At their upper end facing away from the frame 3, the guide columns 41 are connected to one another via a crossbar 42.
  • a height-adjustable part 45 of the corner compressor 40 is held on the guide columns 41 so as to be movable up and down.
  • guide sleeves 46 encompassing the guide columns 41, to which the adjustable part 45 is fastened.
  • the guide sleeves 46 are connected at their upper end facing away from the frame 3 via a lifting beam 47, on which the piston 44 of a lifting cylinder 43 attached to the cross beam engages.
  • a bearing 48 is fixedly attached, on each of which a compression tool 50 is pivoted upwards and downwards is.
  • a vertically operating actuating device 53 is used for the compulsory pivoting of the compacting tools 50, the cylinder 54 of which is pivotally mounted laterally on bearing blocks 56 fixedly attached to the walking beam 47.
  • Each compression tool 50 consists essentially of an angular arrangement of a plunger 52 on an angled or bent leg 51.
  • the leg 51 is pivoted at its free end about the axis 49 on the bearing 48.
  • the piston rod of the piston 55 of the actuating device 53 engages approximately in the middle of the leg 51.
  • the recess 8, 8 'of the lower mold 7, 7' in the loading station 20 has been filled with the necessary amount of concrete 35 and this lower mold 7, 7 'is now on the first compression station 40, so that the compression tools 50 can move into the recess 8, 8 ', each piston 55 is moved out of the associated cylinder 54 and the compression tools 50 on a circular path around the bearing pin 49 into the recess 8, 8' the lower mold 7, 7 'pivoted into it.
  • at least the plunger 52 of the compacting tool 50 is forcibly pressed into the plastic mass or concrete 35 located in the depression 8, 8 'and pushes this or this into the adjacent lower corner of the depression 8, 8' in a stamp-like effect .
  • the sensor 5 has detected a lower mold 7 with a recess 8 with the depth t 1 for a short desk flap 92 shown in FIG. 8, then when this lower mold 7 enters the first compression station 40, the adjustable part 45 of the first compression station 40 is moved by the Lift cylinder 43 brought into the upper position shown in FIG. 4. However, the sensor 5 has a lower mold 7 'with a larger recess 8' with the depth t2 for a long desk cloth 92 'shown in FIG. 9, so when this lower mold 7' enters the first compression station 40, the adjustable part 45 of the first compression station 40 brought by the lifting cylinder 43 in the lower position shown in FIG. 5.
  • the lower mold 7, 7 ' is indicated by dashed lines in FIGS. 4 and 5.
  • a second compression station 60 shown in FIG. 6 is attached to the frame 3 of the device 1 by a frame 65.
  • This frame 65 belongs to the second compression station 60, on the upper cross member of which a vertically operating actuating device 62 is attached.
  • the compression tool 61 preferably has external dimensions which are essentially matched to the internal dimensions of the cross section of a depression 8, 8 ′, so that the compression tool 61 moves the piston 64 out of the cylinder 63 into the Depression 8, 8 'of the lower mold 7, 7' arrived at the second compression station 60 and can compact the plastic mass (concrete) therein.
  • the lower mold 7, 7 ' is indicated here by dashed lines.
  • the compression tool 61 When the depression 8, 8 'of the lower mold 7, 7' has reached below the compression tool 61 of the second compression station 60, the compression tool 61 is moved into the depression 8, 8 'by extending the piston 64 out of the cylinder 63, which inevitably leads to a full-surface compression of the material located in the recess 8, 8 'leads. After completion of the compression work, the compression tool 61 is pulled out of the recess 8, 8 ′ again by pulling the piston 64 into the cylinder 63 and returned to its rest position, indicated by dashed lines.
  • an additional pre-compression may be expedient.
  • an optionally operable additional compression station 70 - shown in FIG. 7 - is preferably provided. This additional compression station 70 can be designed in the same way as the second compression station 60 explained above with reference to FIG. 6.
  • the sensor 5 detects a lower mold 7 with the depth t 1 of the recess 8, so the additional Compression station 70 not activated.
  • the lower mold 7 passes through this additional compression station 70 without the compression tool 71 carrying out a pre-compression work.
  • the sensor 5 detects a lower mold 7 'with a larger depression 8' with the depth t2, the additional compression station 70 is activated.
  • the actuating device 72 which consists of the piston-cylinder arrangement 74, 73, and carries out a pre-compression work there.
  • the compression tool 61 is then moved down to the upper position shown in FIG. 6 in order to carry out the final compression work.
  • both the plastic mass is sufficiently compressed in a larger depression 8 'with the depth t 2 as in a depression 8 with the depth t 1.
  • a stripper device 80 is provided in front of the second compression station 60.
  • a scraper device 80 preferably includes a scraper plate 81 which is fastened to the frame 3 of the device 1 by means of brackets 82, the lower edge of which is designed as a scraper edge 83, the profile of which is adapted to the profile of the upper side of a lower mold 7, 7 '.
  • the scraper edge 83 of the scraper plate 81 meshes over the top of the lower mold 7, 7 'and presses while passing through the lower mold 7, 7 'between the additional compaction station 70 and the second compaction station 60, the precompression carried out on the upper side of the subform 7' by the pre-compaction carried out on the subforms 7 'for the production of long desk cloths 72' back into the recess 8 '.
  • a further wiper device 85 is provided after the first compression station 40.
  • This further scraper device 85 is constructed identically to the already described scraper device 80, wherein a scraper plate 86 is fastened to the frame 3 of the device 1 by means of brackets 87, the scraper edge 88 of which also combs over the upper side of the lower mold 7, 7 ′ when the latter is from the first Compression station 40 is moved to the additional compression station 70 and thereby presses the concrete worked out during the corner compaction in the first compression station 20 from the depression 8, 8 'of the lower mold 7, 7', as well as the concrete in the loading station 20 above the depression 8, 8 'deposited concrete in this recess 8, 8'.
  • the coating station 78 usually includes a shaping roller (not shown) and a straightener (not shown). Under the pressure of Shaping roller and smoother, the material layer to form the plate part is pressed against the material already in the cavity 8, 8 '.
  • a cutting station 79 and a drying station are connected to the coating station 78 in a manner known per se.
  • the construction and mode of operation of the coating station 78, the cutting station 79 and a drying station are known in the art; i.a. can be referred to DE-PS 22 52 047 and / or to DE-OS 35 22 846.
  • Fig. 8 shows a schematic, perspective view of a pent roof end plate 90 made of concrete according to the inventive method on the device according to the invention, which consists of a plate body 91 and a short desk flap 92 with the length l1.
  • the desk cloth 92 extends across the entire width of the plate body 91 and normally has a length l 1 of approximately 73 to 83 mm from the top of the plate body 91.
  • FIG. 9 shows a schematic, perspective illustration of a pent roof end plate 90 'made of concrete using the method according to the invention on the device according to the invention, which consists of a plate body 91' and a long desk flap 92 'for special requirements, for example in the case of extremely steep pent roofs the length l2.
  • the desk flap 92, 92 ' has a conical cross section in both examples.
  • the thickness at the upper end of the desk tab 92, 92 ', that is on the underside of the plate body 91, 91' is 45 to 50 mm and at its lower end 23 to 28 mm.
  • the material thickness of the plate body 91, 91 ' is usually 10 to 13 mm.
  • the desk flap 92, 92 ' is located on the top edge of a desk top cover plate 90, 90', the bottom edge of which may have, for example, a rounding or bevel produced by material compression, as described in detail in DE-OS 35 22 846.
  • the basic structure of a pent roof cover plate is known from German patent 30 15 916. Both on the plate body 91, 91 'and on the desk flap 92, 92' there is a covered edge section 93, 93 'with a side fold 94, 94' and a covering edge section 95, 95 'with a - for overlapping connection with the edges of the desk roof end plates to be arranged adjacent. not shown - cover fold.
  • the lobe 92, 92' protruding from it approximately at right angles is formed, which has an opening 96, 96 'in its covered edge 93, 93' for receiving a fastening means, not shown, such as a screw , Nail, etc.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
  • Road Signs Or Road Markings (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Coating Apparatus (AREA)
  • Control Of Vending Devices And Auxiliary Devices For Vending Devices (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

An apparatus and a proces for the manufacture, by the extrusion method, of roof covering plates having at their underside a transverse flange shaped thereto. At a filling station cavities in the pallets corresponding to the transverse flange, are first filled with a hardenable plastic material such as fresh concrete, and said material is then compacted at at least one compacting station. Thereafter, a continuous layer of the material is deposited at a depositing station. The material is finally processed to roof covering plates.

Description

Die Erfindung betrifft ein Verfahren zur Herstellung von Dacheindeckungsplatten mit an der Plattenunterseite angeformtem Querflansch, wobei auf Unterformen, die jeweils eine Vertiefung zur Bildung des Querflansches aufweisen und die in einem durchgehenden Strang einer Beschichtungsstation zugeführt werden, eine kontinuierliche Schicht aus härtbarem plastischen Material aufgebracht und mittels Formgebungswalze und Glätter in den Vertiefungen gesondert verdichtet sowie gegebenenfalls profiliert wird, sowie die verdichtete Materialschicht in einer Schneidestation zu Dacheindeckungsplatten-Formstücken geschnitten wird, die danach, gegebenenfalls bei erhöhter Temperatur, gehärtet und dann entformt werden.The invention relates to a method for producing roofing tiles with a transverse flange formed on the underside of the tile, wherein a continuous layer of curable plastic material is applied and applied to sub-molds, each of which has a recess for forming the transverse flange and which are fed to a coating station in a continuous strand Forming roller and smoother are compacted separately in the depressions and, if necessary, profiled, and the compacted material layer is cut in a cutting station to form roof covering plate moldings, which are then hardened, if appropriate at elevated temperature, and then removed from the mold.

Die Erfindung betrifft weiterhin eine zur Durchführung des Verfahrens besonders geeignete Vorrichtung.The invention further relates to a device which is particularly suitable for carrying out the method.

Eine Vorrichtung diese Art ist aus der US-Patentschrift 3,122,812 bekannt. Bei der bekannten Maschine erfolgt die Füllung der für den Querflansch vorgesehenen Vertiefungen in den Unterformen und die Beschichtung dieser Unterformen mit einer kontinuierlichen Frischbetonschicht gleichzeitig wenn die Unterformen eine Beschichtungsstation durchlaufen. Der Frischbeton rutscht dabei unter der Wirkung seines eigenen Gewichts aus einem Fülltrichter auch in die Vertiefungen der Unterformen und wird beim Passieren einer Formgebungswalze verdichtet. Bei einem langen Querflansch kann zusätzlich eine gezielte Verdichtung innerhalb der Vertiefungen vorgenommen werden. Hierzu wird ein quer zur Förderrichtung ausgerichtetes längliches Verdichtungswerkzeug durch die bereits auf den Unterformen erzeugte kontinuierliche Frischbetonschicht hindurch in die Vertiefung eingeführt und soll dort den Frischbeton innerhalb der Vertiefung verdichten.A device of this type is known from US Pat. No. 3,122,812. In the known machine, the depressions provided for the transverse flange in the sub-molds and the coating of these sub-molds with a continuous fresh concrete layer take place simultaneously when the sub-molds pass through a coating station. The fresh concrete slips under the effect of its own weight from a filling funnel into the depressions of the lower molds and is compacted as it passes through a shaping roller. In the case of a long transverse flange, targeted compression can also be carried out within the depressions. For this purpose, an elongated compacting tool aligned transversely to the conveying direction is inserted into the depression through the continuous fresh concrete layer already produced on the lower molds and is intended to compact the fresh concrete there within the depression.

Zur Herstellung von Betondachsteinen, deren Plattenunterseite frei von Querflanschen ist, hat sich in der Praxis ein Strangpreßverfahren durchgesetzt, wie es z.B. in der deutschen Patentschrift Nr. 22 52 047 und der deutschen Offenlegungsschrift Nr. 35 22 846 beschrieben ist, wobei auf Unterformen, die in einem durchgehenden Strang einer Beschichtungsanlage zugeführt werden, eine durchgehende Frischbetonschicht aufgebracht wird, die anschließend mittels Formgebungswalze und Glätter verdichtet und gegebenenfalls profiliert wird und daraufhin in einer Schneidestation zu Dachstein-Formstücken gleicher Länge geschnitten wird, die schließlich in einer Trocknungsstation getrocknet und gehärtet werden. Wesentliche Arbeitsstationen sind ortsfest angeordnet, was den Verschleiß an der Anlage vermindert und eine hohe Maßhaltigkeit der fertigen Betondachsteine gewährleistet. Dieses Strangpreßverfahren läßt sich kontinuierlich durchführen und erlaubt hohe Produktionsgeschwindigkeit.For the production of concrete roof tiles, the underside of the slab of which is free of transverse flanges, an extrusion process has established itself in practice, as it e.g. is described in German Patent Specification No. 22 52 047 and German Laid-Open Specification No. 35 22 846, a continuous fresh concrete layer being applied to sub-molds which are fed to a coating installation in a continuous strand, which layer is subsequently compacted by means of shaping rollers and smoothers and, if appropriate is profiled and then cut in a cutting station to Dachstein fittings of the same length, which are finally dried and hardened in a drying station. Essential work stations are arranged in a fixed position, which reduces wear on the system and ensures high dimensional accuracy of the finished concrete roof tiles. This extrusion process can be carried out continuously and allows high production speeds.

Mit einem solchen kontinuierlich betriebenen Strangpreßverfahren ist es grundsätzlich schwierig, an den Dacheindeckungsplatten größere Teile anzuformen, die quer zur Förderrichtung der Unterformen ausgerichtet sind. Solche quer verlaufenden Teile sind beispielsweise die sogenannten Lappen an einer Pultdachabschlußplatte oder einer Traufplatte sowie der Endflansch an endseitigen Firstkappen. Darüberhinaus werden auch an Dacheindeckungsplatten, die für besonders steile Dachneigungen vorgesehen sind, quer verlaufende Aufhängeleisten größerer Länge benötigt. Alle diese quer verlaufenden angeformten Teile, wie Lappen, Flansche, Leisten, Stege und dergleichen werden als Querflansch bezeichnet. Beim kontinuierlich betriebenen Strangpreßverfahren bereitet es Schwierigkeiten, die für diese Querflansche vorgesehenen Vertiefungen in den Unterformen innerhalb der zur Verfügung stehenden Zeitspanne ausreichend mit plastischem Material zu füllen und zu verdichten. Gerade bei größeren Vertiefungen ist die Verdichtung und hier insbesondere in den unteren Bereichen der Vertiefungen problematisch.With such a continuously operated extrusion process, it is fundamentally difficult to form larger parts on the roofing panels, which are oriented transversely to the conveying direction of the sub-molds. Such transverse parts are, for example, the so-called lobes on a pent roof cover plate or an eaves plate and the end flange on the end ridge caps. In addition, transversely extending hanging strips of greater length are also required on roofing slabs intended for particularly steep roof pitches. All these transversely extending molded parts, such as rags, flanges, strips, webs and the like are referred to as a cross flange. In the continuously operated extrusion process, it is difficult to sufficiently fill and compact the depressions in the sub-molds provided for these transverse flanges with plastic material within the time available. Especially in the case of larger depressions, compaction is problematic, particularly in the lower areas of the depressions.

Aufgabe der vorliegenden Erfindung ist es, ausgehend von den aus der US-Patentschrift 3,122,812 bekannten Merkmalen ein Verfahren und eine zur Durchführung dieses Verfahrens geeignete Vorrichtung zu schaffen, um bei der hohen Produktionsgeschwindigkeit des vorstehend beschriebenen Strangpreßverfahrens Dacheindeckungsplatten mit an der Plattenunterseite angeformtem Querflansch herzustellen, die innerhalb des gesamten Querflansches eine befriedigende Verdichtung und Festigkeit aufweisen. Vor allem soll auch in den unteren Bereichen des Querflansches dank ausreichender Materialverdichtung eine entsprechende Festigkeit und Maßhaltigkeit gewährleistet sein und dies auch bei Querflanschen mit größerer Länge.It is an object of the present invention, based on the features known from US Pat. No. 3,122,812, to provide a method and a device suitable for carrying out this method, in order to produce roofing panels with a transverse flange formed on the underside of the panel at the high production speed of the above-described extrusion method have a satisfactory compression and strength within the entire cross flange. Above all, adequate strength and dimensional stability should also be ensured in the lower areas of the cross flange thanks to sufficient material compression, even with cross flanges of greater length.

Nach einem weiteren Ziel der Erfindung sollen mit einer einzigen Vorrichtung zur Herstellung von Dacheindeckungsplatten mit an der Plattenunterseite angeformtem Querflansch ohne nennenswerte Umrüstungsarbeiten auch Dacheindeckungsplatten herstellbar sein, die sich hinsichtlich der Länge des jeweiligen Querflansches unterscheiden.According to a further object of the invention, with a single device for the production of roofing panels with a transverse flange formed on the underside of the panel, roofing panels which differ in terms of the length of the respective transverse flange should also be able to be produced without any significant conversion work.

Erfindungsgemäß wird die Aufgabe für das Verfahren dadurch gelöst, daß zuerst in einer Beschickungsstation eine dosierte Menge des plastischen Materials in die Vertiefung der jeweils zugeführten Unterform eingebracht wird, danach in einer ersten Verdichtungsstation eine Verdichtung des in der Vertiefung befindlichen plastischen Materials in den unteren Ecken der Vertiefung vorgenommen wird, dann in einer zweiten Verdichtungsstation eine Verdichtung des übrigen Materials in der Vertiefung erfolgt, und dann in der Beschichtungsstation die kontinuierliche Materialschicht auf die Unterform aufgebracht wird.According to the invention, the object for the method is achieved in that a metered amount of the plastic material is first introduced into the depression of the respectively supplied lower mold in a loading station, and then compression of the plastic material located in the depression in the lower corners of the in a first compression station Deepening is carried out, then the remaining material in the deepening is compacted in a second compacting station, and then the continuous material layer is applied to the lower mold in the coating station.

Das Verfahren ist in gleicher Weise zur Herstellung von ebenen Dacheindeckungsplatten wie von profilierten Dacheindeckungsplatten geeignet, an deren Unterseite ein Querflansch angeformt ist. Die Dacheindeckungsplatten können aus typischerweise hierfür vorgesehenen Materialien bestehen, wie etwa Beton, keramischen Massen und vergleichbaren Kunststein-Materialien. Nachstehend wird die Erfindung insbesondere mit Bezugnahme auf die Herstellung von profilierten Pultdachabschlußplatten aus Beton beschrieben, ohne daß damit eine Einschränkung der Erfindung beabsichtigt ist.The method is suitable in the same way for the production of flat roofing panels as for profiled roofing panels, on the underside of which a cross flange is formed. The roof covering panels can consist of materials typically provided for this purpose, such as concrete, ceramic masses and comparable artificial stone materials. In the following, the invention will be described in particular with reference to the production of profiled pent roof end plates made of concrete, without the intention of restricting the invention.

Bei dem erfindungsgemäßen Verfahren ist einerseits die Füllung der Vertiefung in den Unterformen mit plastischem Material zur Erzeugung des Querflansches und andererseits das Aufbringen der kontinuierlichen Materialschicht auf die Unterformen zeitlich und räumlich voneinander getrennt.In the method according to the invention, on the one hand, the filling of the depression in the lower molds with plastic material for producing the transverse flange and, on the other hand, the application of the continuous layer of material to the lower molds is separated from one another in terms of time and space.

Erst nachdem die Vertiefung mit plastischem Material gefüllt und dieses ausreichend verdichtet worden ist, wird auf der gesamten Unterform einschließlich des Vertiefungsbereiches die kontinuierliche Materialschicht aufgebracht, die dann noch durch die Formgebungswalze und den Glätter in bekannter Weise verdichtet sowie gegebenenfalls profiliert wird.Only after the depression has been filled with plastic material and this has been sufficiently compressed is the continuous layer of material applied to the entire lower mold, including the depression area, which is then compacted in a known manner by the shaping roller and the smoother and optionally profiled.

Nach dem erfindungsgemäßen Verfahren sind wenigstens zwei verschiedene Maßnahmen zur Verdichtung des in der Vertiefung eingebrachten plastischen Materials vorgesehen. Danach wird in einer ersten Verdichtungsstation eine Verdichtung des plastischen Materials in den unteren Ecken der Vertiefung vorgenommen, und in einer zweiten Verdichtungsstation erfolgt dann eine Verdichtung des übrigen Materials in der Vertiefung.According to the method according to the invention, at least two different measures are provided for compacting the plastic material introduced into the depression. The plastic material is then compressed in the lower corners of the depression in a first compression station, and the remaining material in the depression is then compressed in a second compression station.

Zweckmäßigerweise wird in der Beschickungsstation eine Überfüllung der Vertiefung vorgenommen, um die bei der Verdichtung erfolgende Verringerung des Materialvolumens zu berücksichtigen. Ein Teil des dabei oberhalb der Vertiefung befindlichen sowie auch ein Teil des in die Vertiefung eingebrachten Materials wird, wie Versuche gezeigt haben, bei der Verdichtung auf die Unterform neben der Vertiefung verdrängt. Zur vollständigen Füllung der Vertiefung nach der ersten Verdichtung ist deshalb vorgesehen, daß neben der Vertiefungen auf der Unterform befindliches Material von der zweiten Verdichtungsstation mittels Abstreifervorrichtung in die Vertiefungen eingebracht wird.The feed station is expediently overfilled in order to take into account the reduction in the volume of material that occurs during compression. As tests have shown, part of the material located above the depression and also part of the material introduced into the depression are displaced onto the lower mold next to the depression during compression. For complete filling of the depression after the first compression, it is therefore provided that material located on the lower mold next to the depressions from the second compression station is introduced into the depressions by means of a scraper device.

Wie festgestellt wurde, kann Material hoher Viskosität, wie Frischbeton und dergleichen, in den Vertiefungen nur bis zu einer bestimmten Tiefe verdichtet werden, so daß die Unterformen mit größeren Vertiefungen nach der Verdichtung des Materials in den unteren Ecken der Vertiefungen eine einmalige Verdichtung des übrigen Materials nicht ausreicht, um die erforderliche Festigkeit und Porendichtigkeit des gesamten unteren Teils des Querflansches zu erzielen. Deshalb ist es zweckmäßig, daß bei Verwendung von Unterformen mit größeren Vertiefungen, im Anschluß an die Verdichtung des plastischen Materials in den unteren Ecken der Vertiefung, in einer zusätzlichen Verdichtungsstation, eine Vorverdichtung des übrigen Materials in der Vertiefung durchgeführt wird.As has been found, high viscosity material, such as fresh concrete and the like, can only be compacted to a certain depth in the depressions, so that the sub-molds with larger depressions after the compaction of the material in the lower corners of the depressions provide a one-time compaction of the remaining material not sufficient to achieve the required strength and pore tightness of the entire lower part of the cross flange. It is therefore expedient that when using sub-molds with larger depressions, after the compression of the plastic material in the lower corners of the depression, in an additional compression station, a pre-compression of the remaining material in the depression is carried out.

Dabei ist es vorteilhaft, wenn neben der Vertiefung auf der Unterform befindliches Material vor der zusätzlichen Verdichtungsstation mittels einer weiteren Abstreifervorrichtung in die Vertiefungen eingebracht wird.It is advantageous if material located on the lower mold next to the depression is introduced into the depressions by means of a further scraper device in front of the additional compression station.

Nach einer weiteren Ausgestaltung des erfindungsgemäßen Verfahrens ist es möglich, Dacheindeckungsplatten zu erzeugen, die sich hinsichtlich der Länge des Querflansches unterscheiden. Zu diesem Zweck werden Unterformen mit entsprechenden Vertiefungen verwendet, mittels einem oder mehreren Sensoren wird die Größe der Vertiefung der jeweiligen Unterform erfaßt, und abhängig vom Sensorsignal wird eine entsprechend dosierte Menge plastischen Materials in die Vertiefungen eingebracht.According to a further embodiment of the method according to the invention, it is possible to produce roofing slabs that differ in the length of the transverse flange. For this purpose, sub-molds with corresponding depressions are used, the size of the depression of the respective sub-mold is detected by means of one or more sensors, and depending on the sensor signal, a correspondingly metered amount of plastic material is introduced into the depressions.

Die Vorrichtung zur Herstellung von Dacheindeckungsplatten mit einem an der Plattenunterseite angeformten Querflansch enthält eine mit härtbarem plastischen Material versorgbare Beschichtungsstation zur Bildung einer kontinuierlichen Materialschicht auf einem durchgehenden Strang verschieblicher, von einem Förderer angetriebener Unterform, die jeweils eine Vertiefung zur Bildung des Querflansches aufweisen, ferner eine Verdichtungsstation zur Verdichtung des in den Vertiefungen befindlichen Materials, sowie eine Formgebungswalze und einen Glätter zum Verdichten und gegebenenfalls Profilieren der darunter auf den Unterformen befindlichen durchlaufenden Materialschicht und weiterhin eine Schneidestation zum Zerschneiden der kontinuierlichen, verdichteten Materialschicht in einzelne Dacheindeckungsplatten-Formstücke.The device for the production of roofing panels with a cross flange formed on the underside of the panel contains a coating station which can be supplied with hardenable plastic material to form a continuous layer of material on a continuous strand of displaceable lower mold driven by a conveyor, each having a recess to form the cross flange have, further a compression station for the compression of the material located in the depressions, as well as a shaping roller and a smoother for the compression and optionally profiling of the continuous material layer located underneath on the lower molds, and also a cutting station for cutting the continuous, compressed material layer into individual roofing tile shaped pieces.

Erfindungsgemäße ist hinter einer Beschickungsstation, in welcher eine vorbestimmte Menge plastischen Materials in die Vertiefung der jeweiligen Unterform eingebracht wird, eine erste Verdichtungsstation vorgesehen, die zwei Verdichtungswerkzeuge aufweist, die derart angeordnet sind, daß sie im Verlauf einer an den Vorschub der Unterformen angepaßten in die Vertiefung hinein erfolgenden Bewegung das in den unteren Ecken der Vertiefung befindliche plastische Material verdichten, wenigstens eine weitere Verdichtungsstation ist vorgesehen, in der zumindest ein Verdichtungswerkzeug angepaßt an den Vorschub der Unterformen in die Vertiefung der betreffenden Unterform hinein- und wieder herausbewegbar ist, um eine Verdichtung des übrigen Materials in der Vertiefung zu bewirken, und danach ist die Beschichtungsstation zum Aufbringen der kontinuierlichen Materialschicht auf die Unterformen vorgesehen.According to the invention, a first compression station is provided behind a loading station, in which a predetermined amount of plastic material is introduced into the recess of the respective lower mold, which has two compacting tools which are arranged in such a way that they are adapted to the advance of the lower molds Movement into deepening, compress the plastic material located in the lower corners of the depression, at least one further compression station is provided, in which at least one compression tool, adapted to the advance of the submoulds, can be moved in and out of the depression of the relevant subform in order to compress it of the remaining material in the depression, and then the coating station is provided for applying the continuous layer of material to the lower molds.

Der vorgesehenen Beschickungsstation ist zweckmäßigerweise ein drehbar angeordnetes, mehrflügeliges Zellrad zugeordnet, durch dessen abschnittsweise Drehung eine bestimmt Menge plastischen Materials in die Vertiefung der jeweils zugeführten Unterform einbringbar ist.The intended loading station is expediently assigned a rotatably arranged, multi-vane cell wheel, by the rotation of which in sections, a certain amount of plastic material can be introduced into the depression of the respectively supplied lower mold.

Vorzugsweise weist jedes Verdichtungswerkzeug der ersten Verdichtungsstation einen Stößel auf, der über einen damit abgewinkelt oder abgebogen verbundenen Schenkel, der an seinem freien Ende verschwenkbar in der Verdichtungsstation befestigt ist, auf einer Teilkreisbahn einer unteren Ecke der Vertiefung zuzuführen ist.Each compaction tool of the first compaction station preferably has a plunger which is to be fed on a partial circular path of a lower corner of the depression via a leg which is angled or bent with it and which is pivotally fastened in the compression station at its free end.

In der praktischen Erprobung der vorliegenden Erfindung hat sich gezeigt, daß diese erste Verdichtungsstation ganz wesentlich zur Verbesserung der Festigkeit und Maßhaltigkeit des an der Plattenunterseite angeformten Querflansches beiträgt.Practical testing of the present invention has shown that this first compression station contributes significantly to improving the strength and dimensional stability of the transverse flange formed on the underside of the plate.

Nach einem bevorzugten Merkmal der Erfindung sind die freien Enden der Schenkel der Verdichtungswerkzeuge in unterschiedlicher Höhe in der Verdichtungsstation festlegbar. Damit wird gewährleistet, daß die Verdichtungswerkzeuge die Verdichtung des plastischen Materials auch in den Eckenbereichen bei größeren Vertiefungen durchführen können.According to a preferred feature of the invention, the free ends of the legs of the compression tools can be fixed at different heights in the compression station. This ensures that the compression tools can also carry out the compression of the plastic material in the corner areas with larger recesses.

In weiterer Ausgestaltung der Erfindung ist im Anschluß an diese erste Verdichtungsstation eine zweite Verdichtungsstation vorgesehen, die ein quer zur Förderrichtung ausgerichtetes längliches Verdichtungswerkzeug aufweist, das den Querschnitt der Vertiefung im wesentlichen ausfüllt, wodurch eine Verdichtung des gesamten Materials in der Vertiefung ermöglicht wird.In a further embodiment of the invention, a second compression station is provided following this first compression station, which has an elongated compression tool oriented transversely to the conveying direction, which essentially fills the cross section of the depression, thereby enabling compression of the entire material in the depression.

Weiter kann, in Förderrichtung der Unterformen gesehen, vor der zweiten Verdichtungsstation eine Abstreifervorrichtung vorgesehen sein, deren Abstreifkanten im wesentlichen mit der Oberseite der Unterformen fluchten. Damit wird ein Nachfüllen der Vertiefung mit plastischem Material vor dem Durchlaufen der zweiten Verdichtungsstation erzielt.Furthermore, as seen in the conveying direction of the lower molds, a scraper device can be provided in front of the second compression station, the scraper edges of which are essentially flush with the upper side of the lower molds. Refilling of the depression with plastic material is thus achieved before passing through the second compression station.

Vorzugsweise weist die erfindungsgemäße Vorrichtung eine zusätzliche Verdichtungsstation auf, die in Förderrichtung der Unterformen gesehen, zwischen der ersten Verdichtungsstation und der Abstreifervorrichtung angeordnet ist. Diese Verdichtungsstation dient als Vorverdichter und wird lediglich dann betätigt, wenn eine Unterform mit einer Größeren Vertiefung zur Erzeugung einer Dacheindeckungsplatte mit einem Querflansch größerer Länge diese Verdichtungsstation durchläuft. Dieser Vorverdichter weist ebenfalls, wie die oben erläuterte erste Verdichtungsstation, ein quer zur Förderrichtung ausgerichtetes längliches Verdichtungswerkzeug auf, das den Querschnitt der Vertiefung im wesentlichen ausfüllt.The device according to the invention preferably has an additional compression station, which is arranged between the first compression station and the stripper device, as seen in the conveying direction of the lower molds. This compression station serves as a precompressor and is only actuated when a lower mold with a larger depression for producing a roof covering plate with a transverse flange of greater length passes through this compression station. Like the first compression station explained above, this pre-compressor also has an elongated compression tool oriented transversely to the conveying direction on, which essentially fills the cross section of the recess.

Vorteilhafterweise sind als Betätigungseinrichtung für die Verdichtungswerkzeuge pneumatische oder hydraulische Kolben-Zylinder-Einheiten vorgesehen.Pneumatic or hydraulic piston-cylinder units are advantageously provided as the actuating device for the compression tools.

Bei Verwendung der zusätzlichen Verdichtungsstation, die vor der Abstreifervorrichtung und der zweiten Verdichtungsstation angeordnet ist, ist es vorteilhaft, wenn in Förderrichtung der Unterformen gesehen, vor der zusätzlichen Verdichtungsstation eine weitere Abstreifervorrichtung vorgesehen ist, deren Abstreifkanten im wesentlichen mit der Oberseite der Unterformen fluchten. Damit wird ein Nachfüllen der Vertiefung vor dem Durchlaufen der zusätzlichen Verdichtungsstation gewährleistet.When using the additional compression station, which is arranged in front of the stripping device and the second compression station, it is advantageous if, seen in the conveying direction of the sub-molds, a further stripping device is provided in front of the additional compression station, the stripping edges of which are essentially flush with the top of the sub-molds. This ensures that the depression is refilled before it passes through the additional compression station.

Nach einem weiteren Ziel der vorliegenden Erfindung sollen mit der erfindungsgemäßen Vorrichtung Dacheindeckungsplatten mit unterschiedlich langem Querflansch herstellbar sein. Hierzu sind innerhalb eines Unterformenstranges Unterformen vorgesehen, die sich hinsichtlich der Größe ihrer Vertiefungen unterscheiden.According to a further object of the present invention, roof covering panels with a cross flange of different lengths should be able to be produced with the device according to the invention. For this purpose, sub-molds are provided within a sub-mold strand that differ in the size of their depressions.

Damit mit der erfindungsgemäßen Vorrichtung ohne nennenswerte Umrüstung Dacheindeckungsplatten mit unterschiedlicher Länge der Querflansche herstellbar sind, ist benachbart zur Förderbahn der Unterformen wenigstens ein Sensor angeordnet, der die Größe der Vertiefung der jeweiligen Unterform ertastet und die dabei erzeugten Sensorsignale der Beschickungsstation sowie einer oder mehreren Verdichtungsstationen zuführt. Die Sensorsignale dienen dazu, an der Beschickungsstation die Menge an plastischen Material zu steuern, welcher in die Vertiefung der jeweils zugeführten Unterform eingebracht wird. Beispielsweise führt abhängig von dem Sensorsignal das Zellrad eine oder mehrere abschnittsweise Drehungen durch, je nachdem, ob die Unterformen eine größere oder kleinere Vertiefung aufweist. Weiterhin dienen die Sensorsignale dazu, in der ersten Verdichtungsstation die richtige Höhe der freien Enden der Schenkel der Verdichtungswerkzeuge einzustellen, damit die Stößel dieser Verdichtungswerkzeuge in jedem Fall bis in den unteren Eckenbereich der Vertiefung der jeweils dieser Stationen zugeführten Unterform vordringen können. Schließlich dienen die Sensorsignale auch dazu, wahlweise die zusätzliche Verdichtungsstation zu betätigen, wenn sich dort eine Unterform mit größerer Vertiefung befindet.So that roof covering panels with different lengths of the transverse flanges can be produced with the device according to the invention without any significant retrofitting, at least one sensor is arranged adjacent to the conveying path of the lower molds, which detects the size of the recess of the respective lower mold and feeds the sensor signals generated thereby to the loading station and one or more compression stations . The sensor signals are used to control the amount of plastic material at the loading station, which is introduced into the recess of the respectively supplied lower mold. For example, depending on the sensor signal, the cellular wheel performs one or more rotations in sections, depending on whether the lower molds have a larger or smaller depression. Furthermore, the sensor signals are used to ensure the correct height of the free ends in the first compression station adjust the leg of the compaction tools so that the plungers of these compaction tools can penetrate into the lower corner region of the depression of the lower mold fed to each of these stations. Finally, the sensor signals also serve to selectively actuate the additional compression station if there is a lower mold with a larger recess there.

Nach einer vorteilhaften Ausführungsform der Erfindung ist die Fördereinrichtung zum taktweisen Vorschub der Unterformen ausgebildet und weist eine im wesentlichen umsteuerbare, pneumatische oder hydraulische Kolben-Zylinder-Anordnung auf, durch die ein an den Unterformen angreifender Vorschubschlitten eine Strecke weit in Förderrichtung verschiebbar ist. Eine Fördereinrichtung dieser Art ist aus der deutschen Offenlegungsschrift 29 45 553 bekannt. Mit Bezugnahme auf diese Offenlegungsschrift soll deren Inhalt - soweit zur Erläuterung der vorliegenden Erfindung hilfreich oder notwendig - auch zum Bestandteil der vorliegenden Unterlagen gemacht werden.According to an advantageous embodiment of the invention, the conveying device is designed for intermittent advancement of the lower molds and has a substantially reversible, pneumatic or hydraulic piston-cylinder arrangement, by means of which a feed carriage engaging the secondary molds can be displaced a long way in the conveying direction. A conveyor of this type is known from German Offenlegungsschrift 29 45 553. With reference to this laid-open document, the content thereof - insofar as it is helpful or necessary to explain the present invention - should also be made part of the present documents.

Bei einem diskontinuierlichen Fördern des Unterformstranges ist es sinnvoll, wenn die Beschickungsstation und Verdichtungsstationen ortsfest angeordnet sind und die Tätigkeit dieser Stationen während der Stillstandszeiten der Unterformen im Verlauf des taktweisen Unterformenvorschubs ausgeübt wird.In the case of discontinuous conveying of the lower mold strand, it makes sense if the loading station and compression stations are arranged in a stationary manner and the activity of these stations is carried out during the downtimes of the lower molds in the course of the cyclical lower mold advance.

Das erfindungsgemäße Verfahren ist sowohl für die Herstellung ebener wie profilierter Dacheindeckungsplatten geeignet, an deren Plattenunterseite ein Querflansch angeformt ist. Dabei wird es vorzugsweise bei der Herstellung von Pultdachabschlußplatten, Traufplatten und endseitigen Firstkappen Verwendung finden. Zur Herstellung von profilierten Dacheindeckungsplatten sind Unterformen mit entsprechender Profilierung für den Plattenteil vorzusehen, und es sind dann gegebenenfalls daran angepasste Abstreifervorrichtungen ausser der entsprechenden Formgebungswalze und dem Glätter erforderlich.The method according to the invention is suitable both for the production of flat and profiled roofing tiles, on the underside of which a cross flange is molded. It will preferably be used in the manufacture of pent roof end panels, eaves panels and end ridge caps. For the production of profiled roofing slabs, sub-molds with appropriate profiling for the slab part are to be provided, and then, if necessary matched wipers except the corresponding shaping roller and the smoother required.

Das Verfahren ist auch ohne weiteres an die verschiedenen, bekannten Materialien zur Herstellung von Dacheindeckungsplatten anpassbar. Insbesondere ist es für die Herstellung von Dacheindeckungsplatten aus Beton vorgesehen.The method is also readily adaptable to the various known materials for the production of roofing tiles. In particular, it is intended for the production of concrete roofing slabs.

Nachstehend wir die Erfindung mehr im einzelnen im Sinne einer bevorzugten Ausführungsform anhand der Herstellung einer Pultdachabschlussplatte aus Beton, bei der der Querflansch als Pultlappen bezeichnet wird, mit Bezugnahme auf die Zeichnungen erläutert. Es zeigt:

Fig. 1
in perspektivischer Darstellung einen Ausschnitt aus einer erfindungsgemässen Vorrichtung;
Fig. 2
in einer Schnittdarstellung längs der Linie A-A die Beschickungsstation der Vorrichtung nach Fig. 1;
Fig. 3
eine Vorderansicht der Beschickungsstation nach Fig. 2;
Fig. 4
eine Vorderansicht der ersten Verdichtungsstation der Vorrichtung nach Fig. 1 in der Einstellung zur Herstellung eines Pultlappens üblicher Länge;
Fig. 5
die erste Verdichtungsstation nach Fig. 4, jedoch in der Einstellung zur Herstellung eines längeren Pultlappens;
Fig. 6
eine Vorderansicht der zweiten Verdichtungsstation der Vorrichtung nach Fig. 1;
Fig. 7
eine Vorderansicht der zusätzlichen Verdichtungsstation der Vorrichtung nach Fig. 1;
Fig. 8
in perspektivischer Darstellung eine nach dem erfindungsgemässen Verfahren auf der erfindungsgemässen Vorrichtung hergestellte Pultdachabschlussplatte mit kurzem Pultlappen; und
Fig. 9
in perspektivischer Darstellung eine nach dem erfindungsgemässen Verfahren auf der erfindungsgemässen Vorrichtung hergestellte Pultdachabschlussplatte mit längerem Pultlappen.
In the following we will explain the invention in more detail in the sense of a preferred embodiment based on the production of a pent roof end plate made of concrete, in which the transverse flange is referred to as a desk cloth, with reference to the drawings. It shows:
Fig. 1
a perspective view of a section of an inventive device;
Fig. 2
in a sectional view along the line AA, the loading station of the device of FIG. 1;
Fig. 3
a front view of the loading station of FIG. 2;
Fig. 4
a front view of the first compression station of the device of Figure 1 in the setting for the production of a desk cloth of conventional length.
Fig. 5
the first compression station after Fig. 4, but in the setting for the manufacture of a longer desk cloth;
Fig. 6
a front view of the second compression station of the device of FIG. 1;
Fig. 7
a front view of the additional compression station of the device of FIG. 1;
Fig. 8
a perspective view of a pent roof end plate with a short desk flap manufactured by the method according to the invention on the device according to the invention; and
Fig. 9
a perspective view of a pent roof end plate produced by the method according to the invention on the device according to the invention with a longer desk flap.

Die Fig. 1 zeigt in perspektivischer Darstellung - als Teil einer Gesamtanlage zur Herstellung von Pultdachsteinen - einen Ausschnitt einer erfindungsgemässen Vorrichtung 1 mit Beschickungsstation 20, erster Verdichtungsstation 40, zweiter Verdichtungsstation 60, zusätzlicher Verdichtungsstation 70, Beschichtungsstation 78 und Schneidestation 79, wobei zur besseren Sichtbarkeit der Fördereinrichtung 10 am Einlauf 2 der Vorrichtung 1 einige Unterformen 7, 7' mit Unterformauflagen 6 weggelassen sind.1 shows a perspective view - as part of an overall system for the manufacture of pent roof tiles - a section of a device 1 according to the invention with loading station 20, first compression station 40, second compression station 60, additional compression station 70, coating station 78 and cutting station 79, with better visibility the conveyor 10 at the inlet 2 of the device 1 some sub-molds 7, 7 'with sub-mold supports 6 are omitted.

Die Unterformen 7, 7' zur Herstellung von Pultdachsteinen 90, 90' werden vor oder am Einlauf 2 auf die in einem ununterbrochenen Strang umlaufenden Unterformauflagen 6 aufgelegt und mit diesem von der Fördereinheit 10 in Förderrichtung 4 durch die am Gestell 3 der Vorrichtung 1 befestigten Arbeitsstationen geschoben, nämlich die Beschickungsstation 20, die erste Verdichtungsstation 40, eine Abstreifervorrichtung 85, die zusätzliche Verdichtungsstation 70, eine Abstreifervorrichtung 80, die zweite Verdichterstation 60, die Beschichtungsstation 78 und die Schneidestation 79.The lower molds 7, 7 'for the production of loft roof tiles 90, 90' are placed in front of or at the inlet 2 on the lower mold supports 6 which run in an uninterrupted strand and with this from the conveyor unit 10 in the conveying direction 4 through the work stations attached to the frame 3 of the device 1 pushed, namely the loading station 20, the first compression station 40, a stripping device 85, the additional compression station 70, a stripping device 80, the second compression station 60, the coating station 78 and the cutting station 79.

Zur Fördereinrichtung 10 gehört eine horizontal arbeitende Kolben-Zylinder-Anordnung mit einem Zylinder 11, an dessen Kolben 12 ein Vorschubschlitten 13 befestigt ist. Der Vorschubschlitten 13 liegt an einer Unterformauflage 6 an. Der weitere Aufbau der Fördereinrichtung 10 zum taktweisen Vorschub der Unterformen 7, 7' ist aus der deutschen Offenlegungsschrift 29 45 553 bekannt.The conveyor device 10 includes a horizontally operating piston-cylinder arrangement with a cylinder 11, on the piston 12 of which a feed slide 13 is attached. The feed slide 13 bears against a lower mold support 6. The further structure of the conveyor device 10 for the cyclical advancement of the lower molds 7, 7 'is known from German Offenlegungsschrift 29 45 553.

Am Gestell 3 der Vorrichtung 1 ist wenigstens ein Sensor 5 befestigt, der im Verlauf der Vorwärtsbewegung der Unterformauflagen 6 mit aufgelegter Unterform 7, 7' die Grösse der in Fig. 2 gezeigten Vertiefung 8, 8' der Unterform 7, 7' erfasst und ein Signal erzeugt, das den einzelnen Arbeitsstationen zugeführt wird.At least one sensor 5 is attached to the frame 3 of the device 1, which detects and detects the size of the depression 8, 8 'of the lower mold 7, 7' shown in FIG Generates a signal that is fed to the individual workstations.

Die Unterformauflagen 6 mit den darauf abgelegten Unterformen 7, 7' werden beim Durchlaufen der Vorrichtung 1 in einer Unterformführung 15 geführt, wie nachstehend noch im einzelnen mit Bezugnahme auf Fig. 3 erläutert wird.The lower mold supports 6 with the lower molds 7, 7 'placed thereon are guided in a lower mold guide 15 as they pass through the device 1, such as is explained in detail below with reference to FIG. 3.

Die in den Fig. 2 und 3 dargestellte Beschickungsstation 20 ist am Gestell 3 fest angebracht und weist einen Einfülltrichter 21, einen Füllkasten 22, ein drehbar angeordnetes, mehrflügeliges Zellrad 24, eine erste, pneumatisch betätigte Kolben-Zylinder-Anordnung 31, 30 und eine zweite, pneumatisch betätigte Kolben-Zylinder-Anordnung 33, 32 mit entsprechender Befestigung und Gestänge auf.The loading station 20 shown in FIGS. 2 and 3 is fixedly attached to the frame 3 and has a filling funnel 21, a filling box 22, a rotatably arranged, multi-wing cellular wheel 24, a first, pneumatically operated piston-cylinder arrangement 31, 30 and one second, pneumatically actuated piston-cylinder arrangement 33, 32 with appropriate fastening and linkage.

Die innere Breite b des Füllkastens 22 ist so gewählt, dass ein Zwischenraum zwischen zwei Flügeln 25 des Zellrades 24 die notwenige Betonmenge 35 für die Formung eines in Fig. 8 gezeigten, kurzen Pultlappens 92 mit der Länge l₁ enthält.The inner width b of the filling box 22 is chosen so that an intermediate space between two wings 25 of the cellular wheel 24 contains the necessary amount of concrete 35 for the formation of a short desk cloth 92 shown in FIG. 8 with the length l 1.

Das in der Darstellung vierflügelige Zellrad 24 ist mit einer durchgehenden Welle 27 mit Freilauf 28 in Lagerplatten 23 drehbar gelagert, die auf beiden Seiten des Füllkastens 22 befestigt sind. Das Zellrad 24 wird durch den, nur in Fig. 3 dargestellten, am Gestell 3 in Förderrichtung 4 verschwenkbar angeordneten Zylinder 30 in abschnittsweise Drehung versetzt, dessen Kolben 31 über einen Hebel 29 an dem Freilauf 28 angreift, der seinerseits auf dem aus dem Füllkasten 22 herausragenden Teil der Welle 27 sitzt.The four-winged cellular wheel 24 in the illustration is rotatably supported by a continuous shaft 27 with a freewheel 28 in bearing plates 23 which are fastened on both sides of the filling box 22. The cellular wheel 24 is rotated in sections by the cylinder 30, which is only shown in FIG. 3 and can be pivoted on the frame 3 in the conveying direction 4, the piston 31 of which engages the freewheel 28 via a lever 29, which in turn acts on the one from the filling box 22 protruding part of the shaft 27 sits.

Ueber dem Zellrad 24 ist ein weiterer Zylinder 32 am Füllkasten 22 angeordnet, dessen Kolben 33 bis zu einem waagrecht aus dem Füllkasten 22 herausragenden Flügel 26 des mehrflügeligen Zellrades 24 hinunterreicht.A further cylinder 32 is arranged on the filling box 22 above the cell wheel 24, the piston 33 of which extends down to a wing 26 of the multi-wing cell wheel 24 protruding horizontally from the filling box 22.

Der Füllkasten 22 der Beschickungsstation 20 wird von einem - nicht dargestellten - Materialförderband, das oberhalb der Vorrichtung 1 angeordnet ist, mit härtbarem plastischem Material 34, im vorliegenden Falle mit Beton 34, zur Herstellung der in Fig. 8 und 9 gezeigten Querflansche bzw. Pultlappen 92, 92' der Pultdachabschlussplatten 90, 90' beschickt.The filling box 22 of the loading station 20 is from a - not shown - material conveyor belt, which is arranged above the device 1, with hardenable plastic material 34, in the present case with concrete 34, for the production of the transverse flanges or desk cloths shown in FIGS. 8 and 9 92, 92 'of the pent roof end plates 90, 90'.

Das vierflügelige Zellrad 24 wird beim Ausfahren des Kolbens 31 des Zylinders 30 um 90° in Drehrichtung 36 gedreht, da der auf der Welle 27 sitzende Freilauf 28 in Drehrichtung 36 sperrt und somit die Welle 27 des vierflügeligen Zellrades 24 mitnimmt. Beim Einfahren des Kolbens 31 wird der Freilauf 28 wirksam, so dass die Welle 27 nicht mitgedreht wird.The four-bladed cellular wheel 24 is rotated by 90 ° in the direction of rotation 36 when the piston 31 of the cylinder 30 is extended, since the freewheel 28 on the shaft 27 locks in the rotational direction 36 and thus entrains the shaft 27 of the four-bladed cellular wheel 24. When the piston 31 is retracted, the freewheel 28 becomes effective so that the shaft 27 is not rotated.

Um eine exakte Drehung des vierflügeligen Zellrades 24 um 90° zu gewährleisten, läuft ein, nach der Drehung waagrecht aus dem Füllkasten 22 herausragender Flügel 26, auf den als Anschlag nach unten ausgefahrenen Kolben 33 des Zylinders 32 auf. Die zurückgezogene Stellung des Kolbens 33 ist in Fig. 2 gestrichelt dargestellt.In order to ensure an exact rotation of the four-winged cellular wheel 24 by 90 °, a wing 26 protruding horizontally from the filling box 22 runs onto the piston 33 of the cylinder 32 which is extended downward as a stop. The retracted position of the piston 33 is shown in dashed lines in FIG. 2.

Bei der Drehung des vierflügeligen Zellrades 24 um 90° wird die notwendige Betonmenge 35 für die Bildung eines in Fig. 8 gezeigten, kurzen Pultlappens 92 mit der Länge l₁ auf die Unterform 7 im Bereich der Vertiefung 8 für den kurzen Pultlappen 92 abgegeben.With the rotation of the four-winged cellular wheel 24 by 90 °, the amount of concrete 35 required for the formation of a short desk cloth 92 shown in FIG. 8 with the length l 1 is delivered to the lower mold 7 in the region of the depression 8 for the short desk cloth 92.

Wenn der in Fig. 1 gezeigte Sensor 5 eine Unterform 7' mit einer Vertiefung 8' für einen in Fig. 9 gezeigten, langen Pultlappen 92' mit der grösseren Länge 1₂ erfasst, dann wird die Drehung des vierflügeligen Zellrades 24 durch den Zylinder 30 zweimal durchgeführt, so dass die doppelte Menge Beton in den Hohlraum 8' für den langen Pultlappen 92' auf die Unterform 7' abgegeben wird. Die Vertiefung 8' mit der Tiefe t₂ für den langen Pultlappen 92' ist in Fig. 2 und 3 mit der unteren, gestrichelten Linie angedeutet. Die Vertiefung 8 mit der Tiefe t₁ für den kurzen Pultlappen 92 ist in Fig. 2 eingezeichnet und in Fig. 3 mit der oberen gestrichelten Linie angedeutet.If the sensor 5 shown in FIG. 1 detects a lower mold 7 'with a recess 8' for a long desk flap 92 'shown in FIG. 9 with the greater length 1₂, then the rotation of the four-winged cellular wheel 24 by the cylinder 30 is twice carried out, so that twice the amount of concrete is poured into the cavity 8 'for the long desk cloth 92' onto the lower mold 7 '. The recess 8 'with the depth t₂ for the long desk cloth 92' is indicated in FIGS. 2 and 3 with the lower, dashed line. The depression 8 with the depth t 1 for the short desk lobe 92 is shown in Fig. 2 and indicated in Fig. 3 with the upper dashed line.

Wie aus Fig. 2 und 3 ersichtlich, befindet sich die Unterform 7, 7' auf einer Unterformauflage 6, die in den senkrechten Führungsleisten 16 und auf den waagrechten Auflagebalken 17 der Unterformführung 15 geführt ist und in Förderrichtung 4 verschoben wird.As can be seen from FIGS. 2 and 3, the lower mold 7, 7 'is located on a lower mold support 6 which is guided in the vertical guide strips 16 and on the horizontal support beam 17 of the lower mold guide 15 and is displaced in the conveying direction 4.

Die in den Fig. 4 und 5 dargestellte erste Verdichtungsstation 40 ist über Führungssäulen 41 am Gestell 3 der Vorrichtung 1 befestigt. An ihrem oberen, vom Gestell 3 abgewandten Ende sind die Führungssäulen 41 über einen Querbalken 42 miteinander verbunden.The first compression station 40 shown in FIGS. 4 and 5 is fastened to the frame 3 of the device 1 via guide columns 41. At their upper end facing away from the frame 3, the guide columns 41 are connected to one another via a crossbar 42.

An den Führungssäulen 41 ist ein in der Höhe verstellbarer Teil 45 des Eckenverdichters 40 auf- und abwärts bewegbar gehalten. Hierzu dienen die Führungssäulen 41 umgreifende Führungshülsen 46, an denen der verstellbare Teil 45 befestigt ist. Die Führungshülsen 46 sind an ihrem oberen, vom Gestell 3 abgewandten Ende über einen Hubbalken 47 miteinander verbunden, an dem der Kolben 44 eines am Querbalken befestigten Hubzylinders 43 angreift.A height-adjustable part 45 of the corner compressor 40 is held on the guide columns 41 so as to be movable up and down. For this purpose, guide sleeves 46 encompassing the guide columns 41, to which the adjustable part 45 is fastened. The guide sleeves 46 are connected at their upper end facing away from the frame 3 via a lifting beam 47, on which the piston 44 of a lifting cylinder 43 attached to the cross beam engages.

Am unteren Ende der Führungshülsen 46 ist je ein Lager 48 fest angebracht, an dem je ein Verdichtungswerkzeug 50 nach oben und unten verschwenkbar angelenkt ist. Zum zwangsweisen Verschwenken der Verdichtungswerkzeuge 50 dient je eine vertikal arbeitende Betätigungseinrichtung 53, deren Zylinder 54 an am Hubbalken 47 fest angebrachten Lagerböcken 56 seitlich verschwenkbar gelagert ist. Jedes Verdichtungswerkzeug 50 besteht im wesentlichen aus einer winkelförmigen Anordnung eines Stössels 52 an einem abgewinkelt oder abgebogen verlaufenden Schenkel 51. Der Schenkel 51 ist an seinem freien Ende schwenkbar um die Achse 49 am Lager 48 angelenkt. Die Kolbenstange des Kolbens 55 der Betätigungseinrichtung 53 greift etwa in der Mitte des Schenkels 51 an.At the lower end of the guide sleeves 46, a bearing 48 is fixedly attached, on each of which a compression tool 50 is pivoted upwards and downwards is. A vertically operating actuating device 53 is used for the compulsory pivoting of the compacting tools 50, the cylinder 54 of which is pivotally mounted laterally on bearing blocks 56 fixedly attached to the walking beam 47. Each compression tool 50 consists essentially of an angular arrangement of a plunger 52 on an angled or bent leg 51. The leg 51 is pivoted at its free end about the axis 49 on the bearing 48. The piston rod of the piston 55 of the actuating device 53 engages approximately in the middle of the leg 51.

Nachdem, wie oben mit Bezugnahme auf die Fig. 2 und 3 näher beschrieben, die Vertiefung 8, 8' der Unterform 7, 7' in der Beschickungsstation 20 mit der notwendigen Betonmenge 35 gefüllt worden ist und diese Unterform 7, 7' sich nunmehr an der ersten Verdichtungsstation 40 befindet, so dass die Verdichtungswerkzeuge 50 in die Vertiefung 8, 8' einfahren können, wird jeder Kolben 55 aus dem zugeordneten Zylinder 54 ausgefahren und die Verdichtungswerkzeuge 50 auf einer Kreisbahn um den Lagerbolzen 49 herum in die Vertiefung 8, 8' der Unterform 7, 7' hineingeschwenkt. Hierbei wird wenigstens der Stössel 52 des Verdichtungswerkzeuges 50 zwangsweise in die in der Vertiefung 8, 8' befindliche plastische Masse bzw. Beton 35 hineingedrückt und schiebt diese bzw. diesen in einer stempelartigen Wirkung in die benachbarte, untere Ecke der Vertiefung 8, 8' hinein. Auf diese Weise erfolgt eine gezielte Verdichtung des Betons 35 im jeweiligen unteren Eckenbereich der Vertiefung 8, 8'. Nach Beendigung der Verdichtungsarbeit werden die Verdichtungswerkzeuge 50 durch das Einziehen der Kolben 55 in die Zylinder 54 wieder in ihre Ruhelage zurückgeführt. In den Fig. 4 und 5 ist diese Ruhelage der Verdichtungswerkzeuge 50 mit gestrichelten Linien angedeutet.After, as described in more detail above with reference to FIGS. 2 and 3, the recess 8, 8 'of the lower mold 7, 7' in the loading station 20 has been filled with the necessary amount of concrete 35 and this lower mold 7, 7 'is now on the first compression station 40, so that the compression tools 50 can move into the recess 8, 8 ', each piston 55 is moved out of the associated cylinder 54 and the compression tools 50 on a circular path around the bearing pin 49 into the recess 8, 8' the lower mold 7, 7 'pivoted into it. Here, at least the plunger 52 of the compacting tool 50 is forcibly pressed into the plastic mass or concrete 35 located in the depression 8, 8 'and pushes this or this into the adjacent lower corner of the depression 8, 8' in a stamp-like effect . In this way, the concrete 35 is deliberately compacted in the respective lower corner region of the depression 8, 8 '. After completion of the compression work, the compression tools 50 are pulled in by pulling in the pistons 55 returned to their rest position in the cylinders 54. 4 and 5, this rest position of the compacting tools 50 is indicated by dashed lines.

Wenn der Sensor 5 eine Unterform 7 mit einer Vertiefung 8 mit der Tiefe t₁ für einen in Fig. 8 gezeigten kurzen Pultlappen 92 erfasst hat, dann wird beim Einlaufen dieser Unterform 7 in die erste Verdichtungsstation 40 der verstellbare Teil 45 der ersten Verdichtungsstation 40 durch den Hubzylinder 43 in die in Fig. 4 gezeigte, obere Stellung gebracht. Hat der Sensor 5 jedoch eine Unterform 7' mit einer grösseren Vertiefung 8' mit der Tiefe t₂ für einen in Fig. 9 gezeigten langen Pultlappen 92' erfasst, so wird beim Einlaufen dieser Unterform 7' in die erste Verdichtungsstation 40 der verstellbare Teil 45 der ersten Verdichtungsstation 40 durch den Hubzylinder 43 in die in Fig. 5 gezeigte, untere Stellung gebracht. Die Unterform 7, 7' ist in Fig. 4 und 5 gestrichelt angedeutet.If the sensor 5 has detected a lower mold 7 with a recess 8 with the depth t 1 for a short desk flap 92 shown in FIG. 8, then when this lower mold 7 enters the first compression station 40, the adjustable part 45 of the first compression station 40 is moved by the Lift cylinder 43 brought into the upper position shown in FIG. 4. However, the sensor 5 has a lower mold 7 'with a larger recess 8' with the depth t₂ for a long desk cloth 92 'shown in FIG. 9, so when this lower mold 7' enters the first compression station 40, the adjustable part 45 of the first compression station 40 brought by the lifting cylinder 43 in the lower position shown in FIG. 5. The lower mold 7, 7 'is indicated by dashed lines in FIGS. 4 and 5.

Eine in Fig. 6 dargestellte, zweite Verdichtungsstation 60 ist mit einem Rahmen 65 am Gestell 3 der Vorrichtung 1 befestigt. Zur zweiten Verdichtungsstation 60 gehört dieser Rahmen 65, an dessen oberem Querholm eine vertikal arbeitende Betätigungseinrichtung 62 angebracht ist. An einer Kolbenstange des Kolbens 64 des Zylinders 63 der Betätigungseinrichtung 62 ist ein quer zur Förderrichtung ausgerichtetes längliches Verdichtungswerkzeug 61 befestigt, das mittels der Betätigungseinrichtung 62 zwangsweise auf- und abbewegt werden kann. Vorzugsweise hat das Verdichtungswerkzeug 61 Aussenabmessungen, die im wesentlichen an die Innenabmessungen des Querschnitts einer Vertiefung 8, 8' angepasst sind, so dass das Verdichtungswerkzeug 61 beim Herausfahren des Kolbens 64 aus dem Zylinder 63 in die Vertiefung 8, 8' der in der zweiten Verdichtungsstation 60 angelangten Unterform 7, 7' eintreten und darin die plastische Masse (Beton) verdichten kann.A second compression station 60 shown in FIG. 6 is attached to the frame 3 of the device 1 by a frame 65. This frame 65 belongs to the second compression station 60, on the upper cross member of which a vertically operating actuating device 62 is attached. On an piston rod of the piston 64 of the cylinder 63 of the actuating device 62 an elongated compression tool 61 is fastened which is oriented transversely to the conveying direction and which can be forcibly moved up and down by means of the actuating device 62. The compression tool 61 preferably has external dimensions which are essentially matched to the internal dimensions of the cross section of a depression 8, 8 ′, so that the compression tool 61 moves the piston 64 out of the cylinder 63 into the Depression 8, 8 'of the lower mold 7, 7' arrived at the second compression station 60 and can compact the plastic mass (concrete) therein.

Die Unterform 7, 7' ist hier gestrichelt angedeutet.The lower mold 7, 7 'is indicated here by dashed lines.

Wenn die Vertiefung 8, 8' der Unterform 7, 7' unterhalb des Verdichtungswerkzeugs 61 der zweiten Verdichtungsstation 60 angelangt ist, wird das Verdichtungswerkzeug 61 durch Ausfahren des Kolbens 64 aus dem Zylinder 63 in die Vertiefung 8, 8' eingefahren, was zwangsläufig zu einer vollflächigen Verdichtung des in der Vertiefung 8, 8' befindlichen Materials führt. Nach Beendigung der Verdichtungsarbeit wird das Verdichtungswerkzeug 61 durch Einziehen des Kolbens 64 in den Zylinder 63 wieder aus der Vertiefung 8, 8' herausgeführt und in seine gestrichelt angedeutete Ruhelage zurückgeführt.When the depression 8, 8 'of the lower mold 7, 7' has reached below the compression tool 61 of the second compression station 60, the compression tool 61 is moved into the depression 8, 8 'by extending the piston 64 out of the cylinder 63, which inevitably leads to a full-surface compression of the material located in the recess 8, 8 'leads. After completion of the compression work, the compression tool 61 is pulled out of the recess 8, 8 ′ again by pulling the piston 64 into the cylinder 63 and returned to its rest position, indicated by dashed lines.

Im Falle der Erzeugung eines längeren Querflansches - entsprechend dem längeren Pultlappen 92' der Pultdachabschlussplatte 90' nach Fig. 9 - kann nach der Eckenverdichtung in der ersten Verdichtungsstation 40 und vor der vollflächigen Verdichtung der zweiten Verdichtungsstation 60 eine zusätzliche Vorverdichtung zweckmässig sein. Hierzu ist vorzugsweise eine wahlweise betätigbare - in Fig. 7 dargestellte - zusätzliche Verdichtungsstation 70 vorgesehen. Diese zusätzliche Verdichtungsstation 70 kann in gleicher Weise ausgebildet sein, wie die oben mit Bezugnahme auf die Fig. 6 erläuterte zweite Verdichtungsstation 60.In the case of the production of a longer transverse flange - corresponding to the longer desk flap 92 'of the desk roof end plate 90' according to FIG. 9 - after the corner compression in the first compression station 40 and before the full-surface compression of the second compression station 60, an additional pre-compression may be expedient. For this purpose, an optionally operable additional compression station 70 - shown in FIG. 7 - is preferably provided. This additional compression station 70 can be designed in the same way as the second compression station 60 explained above with reference to FIG. 6.

Erfasst der Sensor 5 eine Unterform 7 mit der Tiefe t₁ der Vertiefung 8, so wird die zusätzliche Verdichtungsstation 70 nicht aktiviert. Die Unterform 7 durchfährt diese zusätzliche Verdichtungsstation 70, ohne dass dessen Verdichtungswerkzeug 71 eine Vorverdichtungsarbeit ausführt. Erfasst der Sensor 5 dagegen eine Unterform 7' mit einer grösseren Vertiefung 8' mit der Tiefe t₂, so wird die zusätzliche Verdichtungsstation 70 aktiviert. Nachdem diese bestimmte Unterform in die zusätzliche Verdichtungsstation 70 eingefahren ist, wird deren Verdichtungswerkzeug 71 durch die Betätigungseinrichtung 72, die aus der Kolben-Zylinder-Anordnung 74, 73 besteht, in die Vertiefung 8' eingefahren und übt dort eine Vorverdichtungsarbeit aus. In der anschliessenden, zweiten Verdichtungsstation 60 wird das Verdichtungswerkzeug 61 dann bis auf die aus Fig. 6 ersichtliche, obere Stellung herabgefahren, um die abschliessende Verdichtungsarbeit auszuführen.The sensor 5 detects a lower mold 7 with the depth t 1 of the recess 8, so the additional Compression station 70 not activated. The lower mold 7 passes through this additional compression station 70 without the compression tool 71 carrying out a pre-compression work. In contrast, the sensor 5 detects a lower mold 7 'with a larger depression 8' with the depth t₂, the additional compression station 70 is activated. After this particular lower mold has been moved into the additional compression station 70, its compression tool 71 is moved into the depression 8 ′ by the actuating device 72, which consists of the piston-cylinder arrangement 74, 73, and carries out a pre-compression work there. In the subsequent, second compression station 60, the compression tool 61 is then moved down to the upper position shown in FIG. 6 in order to carry out the final compression work.

Nachdem das Verdichtungswerkzeug 61 der zweiten Verdichtungsstation 60 die aus Fig. 6 ersichtliche obere Stellung erreicht hat, ist sowohl die plastische Masse in einer grösseren Vertiefung 8' mit der Tiefe t₂ wie in einer Vertiefung 8 mit der Tiefe t₁ ausreichend verdichtet.After the compression tool 61 of the second compression station 60 has reached the upper position shown in FIG. 6, both the plastic mass is sufficiently compressed in a larger depression 8 'with the depth t 2 as in a depression 8 with the depth t 1.

Vor der zweiten Verdichtungsstation 60 ist, wie in Fig. 1 dargestellt, eine Abstreifervorrichtung 80 vorgesehen. Zu einer solchen Abstreifervorrichtung 80 gehört vorzugsweise ein Abstreifblech 81, das über Halterungen 82 am Gestell 3 der Vorrichtung 1 befestigt ist, dessen Unterkante als Abstreifkante 83 ausgebildet ist, deren Profil an das Profil der Oberseite einer Unterform 7, 7' angepasst ist. Die Abstreifkante 83 des Abstreifbleches 81 kämmt über die Oberseite der Unterform 7, 7' und drückt während des Durchlaufens der Unterform 7, 7' zwischen der zusätzlichen Verdichtungsstation 70 und der zweiten Verdichtungsstation 60 den durch die, bei den Unterformen 7' zur Herstellung von langen Pultlappen 72' erfolgte Vorverdichtung auf die Oberseite der Unterform 7' weggedrückten Beton wieder in die Vertiefung 8' zurück.As shown in FIG. 1, a stripper device 80 is provided in front of the second compression station 60. Such a scraper device 80 preferably includes a scraper plate 81 which is fastened to the frame 3 of the device 1 by means of brackets 82, the lower edge of which is designed as a scraper edge 83, the profile of which is adapted to the profile of the upper side of a lower mold 7, 7 '. The scraper edge 83 of the scraper plate 81 meshes over the top of the lower mold 7, 7 'and presses while passing through the lower mold 7, 7 'between the additional compaction station 70 and the second compaction station 60, the precompression carried out on the upper side of the subform 7' by the pre-compaction carried out on the subforms 7 'for the production of long desk cloths 72' back into the recess 8 '.

Im Anschluss an die erste Verdichtungsstation 40 ist eine weitere Abstreifervorrichtung 85 vorgesehen. Diese weitere Abstreifervorrichtung 85 ist baugleich mit der schon beschriebenen Abstreifervorrichtung 80 ausgebildet, wobei mittels Haltern 87 am Gestell 3 der Vorrichtung 1 ein Abstreifblech 86 befestigt ist, dessen Abstreifkante 88 ebenfalls über die Oberseite der Unterform 7, 7' kämmt, wenn diese von der ersten Verdichtungsstation 40 zu der zusätzlichen Verdichtungsstation 70 bewegt wird und drückt dabei den, bei der Eckenverdichtung in der ersten Verdichtungsstation 20 aus der Vertiefung 8, 8' der Unterform 7, 7' herausgearbeiteten Beton, wie auch den in der Beschickungsstation 20 oberhalb der Vertiefung 8, 8' abgelegten Beton in diese Vertiefung 8, 8'.A further wiper device 85 is provided after the first compression station 40. This further scraper device 85 is constructed identically to the already described scraper device 80, wherein a scraper plate 86 is fastened to the frame 3 of the device 1 by means of brackets 87, the scraper edge 88 of which also combs over the upper side of the lower mold 7, 7 ′ when the latter is from the first Compression station 40 is moved to the additional compression station 70 and thereby presses the concrete worked out during the corner compaction in the first compression station 20 from the depression 8, 8 'of the lower mold 7, 7', as well as the concrete in the loading station 20 above the depression 8, 8 'deposited concrete in this recess 8, 8'.

Nachdem das in der Vertiefung 8, 8' einer Unterform 7, 7' befindliche plastische Material (Beton) in der zweiten Verdichtungsstation 60 ausreichend und abschliessend verdichtet worden ist, wird auf dieser bestimmten Unterform in der Beschichtungsstation 78 eine kontinuierliche Frischbetonschicht aufgebracht. Normalerweise geschieht das nach dem bekannten Strangpressverfahren zur Herstellung von Betondachsteinen. Zur Beschichtungsstation 78 gehört üblicherweise eine - nicht dargestellte - Formgebungswalze und ein - nicht dargestellter - Glätter. Unter dem Anpressdruck von Formgebungswalze und Glätter wird die Materialschicht zur Bildung des Plattenteils an das bereits im Hohlraum 8, 8' befindliche Material angepresst.After the plastic material (concrete) located in the depression 8, 8 'of a lower mold 7, 7' has been sufficiently and finally compacted in the second compacting station 60, a continuous fresh concrete layer is applied to this specific lower mold in the coating station 78. This is normally done using the known extrusion process for the production of concrete roof tiles. The coating station 78 usually includes a shaping roller (not shown) and a straightener (not shown). Under the pressure of Shaping roller and smoother, the material layer to form the plate part is pressed against the material already in the cavity 8, 8 '.

An die Beschichtungsstation 78 schliesst sich in an sich bekannter Weise eine Schneidestation 79 und eine - nicht dargestellte - Trocknungsstation an. Aufbau und Arbeitsweise der Beschichtungsstation 78, der Schneidestation 79 und einer Trocknungsstation sind in der Fachwelt bekannt; u.a. kann hierzu auf die DE-PS 22 52 047 und/oder auf die DE-OS 35 22 846 verwiesen werden.A cutting station 79 and a drying station (not shown) are connected to the coating station 78 in a manner known per se. The construction and mode of operation of the coating station 78, the cutting station 79 and a drying station are known in the art; i.a. can be referred to DE-PS 22 52 047 and / or to DE-OS 35 22 846.

Fig. 8 zeigt in schematischer, perspektivischer Darstellung eine nach dem erfindungsgemässen Verfahren auf der erfindungsgemässen Vorrichtung hergestellte Pultdachabschlussplatte 90 aus Beton, die aus einem Plattenkörper 91 und einem kurzen Pultlappen 92 mit der Länge l₁ besteht. Der Pultlappen 92 erstreckt sich über die gesamte Breite des Plattenkörpers 91 ab und weist normalerweise von der Oberseite des Plattenkörpers 91 ab eine Länge l₁ von etwa 73 bis 83 mm auf.Fig. 8 shows a schematic, perspective view of a pent roof end plate 90 made of concrete according to the inventive method on the device according to the invention, which consists of a plate body 91 and a short desk flap 92 with the length l₁. The desk cloth 92 extends across the entire width of the plate body 91 and normally has a length l 1 of approximately 73 to 83 mm from the top of the plate body 91.

Entsprechend zeigt Fig. 9 in schematischer, perspektivischer Darstellung eine nach dem erfindungsgemässen Verfahren auf der erfindungsgemässen Vorrichtung hergestellte Pultdachabschlussplatte 90' aus Beton, die aus einem Plattenkörper 91' und einem, für besondere Anforderungen, beispielsweise bei extrem steilen Pultdächern, langen Pultlappen 92' mit der Länge l₂ besteht. In diesem Falle kann der Pultlappen von der Oberseite des Plattenkörpers 91' ab eine Länge l₂ von 115 bis 125 mm aufweisen.Correspondingly, FIG. 9 shows a schematic, perspective illustration of a pent roof end plate 90 'made of concrete using the method according to the invention on the device according to the invention, which consists of a plate body 91' and a long desk flap 92 'for special requirements, for example in the case of extremely steep pent roofs the length l₂. In this case, the desk cloth from the top of the plate body 91 'from a length l₂ of 115 to 125 mm.

Der Pultlappen 92, 92' weist bei beiden angeführten Beispielen einen konischen Querschnitt auf. Die Dicke beträgt in beiden Fällen an dem oberen Ende des Pultlappens 92, 92', das ist an der Unterseite des Plattenkörpers 91, 91', 45 bis 50 mm und an seinem unteren Ende 23 bis 28 mm. Die Materialstärke des Plattenkörpers 91, 91' beträgt üblicherweise 10 bis 13 mm.The desk flap 92, 92 'has a conical cross section in both examples. In both cases, the thickness at the upper end of the desk tab 92, 92 ', that is on the underside of the plate body 91, 91', is 45 to 50 mm and at its lower end 23 to 28 mm. The material thickness of the plate body 91, 91 'is usually 10 to 13 mm.

Der Pultlappen 92, 92' befindet sich am kopfseitigen Rand einer Pultdachabschlussplatte 90, 90', deren fusseitiger Rand beispielsweise eine durch Materialverdichtung erzeugte Abrundung oder Abschrägung aufweisen kann, wie das im einzelnen in der DE-OS 35 22 846 beschrieben ist. Der grundsätzliche Aufbau einer Pultdachabschlussplatte ist aus der deutschen Patentschrift 30 15 916 bekannt. Sowohl am Plattenkörper 91, 91' wie am Pultlappen 92, 92' befindet sich zur überlappenden Verbindung mit den Rändern benachbart anzuordnender Pultdachabschlussplatten ein überdeckter Randabschnitt 93, 93' mit einem Seitenfalz 94, 94' sowie ein überdeckender Randabschnitt 95, 95' mit einem - nicht dargestellten - Deckfalz. Am Firstende des Plattenkörpers 91, 91' ist der von diesem etwa rechtwinkelig nach unten abstehende Pultlappen 92, 92' angeformt, der in seinem überdeckten Rand 93, 93' eine Durchbrechung 96, 96' zur Aufnahme eines - nicht dargestellten - Befestigungsmittels, wie Schraube, Nagel usw. aufweist.The desk flap 92, 92 'is located on the top edge of a desk top cover plate 90, 90', the bottom edge of which may have, for example, a rounding or bevel produced by material compression, as described in detail in DE-OS 35 22 846. The basic structure of a pent roof cover plate is known from German patent 30 15 916. Both on the plate body 91, 91 'and on the desk flap 92, 92' there is a covered edge section 93, 93 'with a side fold 94, 94' and a covering edge section 95, 95 'with a - for overlapping connection with the edges of the desk roof end plates to be arranged adjacent. not shown - cover fold. At the ridge end of the plate body 91, 91 ', the lobe 92, 92' protruding from it approximately at right angles is formed, which has an opening 96, 96 'in its covered edge 93, 93' for receiving a fastening means, not shown, such as a screw , Nail, etc.

Claims (18)

  1. Process for manufacturing roof covering boards (90; 90') with at their underside a transverse flange (92; 92') integrally shaped thereto, comprising applying a continuous layer of hardenable plastic material on pallets (7; 7') which present respectively a cavity (8; 8') for the shaping of the transverse flange (92; 92') and which are fed to a depositing station (78) in a continuous row, said layer being separately compacted in the cavities (8; 8') by means of a shaping roller and of a smoothing tool and being also profiled if necessary, the compacted material layer being as well cut into roofing plate mouldings at a cutting station (79), said mouldings being then hardened, if necessary at elevated temperature and removed from the mould,
    characterized in that
    first at a filling station (20), a predetermined quantity of plastic material is deposited in the cavity (8; 8') of the respectively fed pallet (7; 7'), and that at a first compacting station (40) a compacting of the plastic material laying in the cavity (8; 8') is then carried out in the lower corners of the cavity (8; 8'), and that at a second compacting station (60) a compacting of the remaining material is effected in the cavity (8; 8') and that the continuous material layer is then deposited on the pallet (7; 7') at the depositing station (78).
  2. Process according to claim 1,
    characterized in that
    the material being on the pallet (7; 7') near the cavity (8; 8')is introduced into the cavity (8; 8') before the second compacting station (60) by means of a scraping device (80).
  3. Process according to claim 2,
    characterized in that
    when using pallets (7; 7') with larger cavities (8; 8'), subsequent to the compacting of the plastic material in the lower corners of the cavity (8; 8'), at an additional compacting station (70), a precompacting of the remaining material is carried out in the cavity (8; 8').
  4. Process according to claim 3,
    characterized in that
    the material being on the pallet (7; 7') near the cavity (8; 8') is introduced into the cavity (8; 8') before the additional compacting station (70) by means of a further scraping device (85).
  5. Process according to claims 1 to 4,
    chacracterized in that
    for the manufacture of roof covering plates with transverse flange of different lengths (92; 92') while using pallets (7; 7') with corresponding cavities (8; 8') the size of the cavity (8; 8') of the respective pallet (7; 7') is sensed by means of one or more detectors (5) and that, depending on the detector signal, a correspondingly predetermined quantity of plastic material is introduced into the cavity (8: 8').
  6. Device for the manufacture of roof covering plates with at their underside a transverse flange (92; 92') integrally shaped thereto, with a depositing station (78) suppliable with hardenable plastic material for the shaping of a continuous material layer on a continuous row of displaceable pallets (7; 7') driven by a conveyor which show each a cavity (8; 8') for the shaping of the transverse flange, and further with at least a compacting station (40) for the compacting of the material situated in the cavities (8; 8') as well as with a shaping roller and a smoothing tool for the compacting and if need be the profiling of the continuous material layer passing through on the pallets (7; 7') below, furthermore with a cutting station for the cutting of the continuous, compacted material layer into individual roof covering plate mouldings
    characterized in that
    behind a filling station (20) in which a predetermined quantity of plastic material is introduced into the cavity (8; 8') of the respective pallet (7; 7') a first compacting station (40) is provided which presents two compacting tools (50) which are arranged in such a way that they compact the plastic material in the lower corners of the cavity (8; 8') during the course of a movement effected into the cavity (8; 8') in accordance with the advance of the pallets (7; 7'), that in at least one further compacting station (60; 70) in which at least one compacting tool (61; 71) adjusted to the advance of the pallets (7; 7') is introduced into the cavity (8: 8') of the appropriate pallet (7; 7') and removed again in order to obtain a compacting of the remaining material in the cavity (8; 8') and that afterwards the depositing station (78) is provided in order to deposit the continuous material layer onto the pallets (7; 7').
  7. Device according to claim 6,
    characterized in that
    a rotatably arranged multi-wing star feeder (24) is allocated to the filling station (20), the rotation of which, section by section, allows the introduction of a predetermined quantity of plastic material into the cavity (8; 8') of each incoming pallet (7; 7').
  8. Device according to claim 6,
    characterized in that
    each compacting tool (50) presents a pusher (52) which can be moved according to a circular path into a lower corner of the cavity (8; 8') via a leg (51), which is in angular or bent-off connection with it and rotatably fixed at its free end to the first compacting station (40).
  9. Device according to claim 8,
    characterized in that
    the free ends of the legs (51) of the compacting tools (50) may be fixed at different heights in the first compacting station (40).
  10. Device according to one of claims 6 to 9,
    characterized in that
    a second compacting station (60) is provided which shows an elongated compacting tool (61) aligned transversely to the conveying direction (4) and which fills out substantially the cross-section of the cavity (8; 8').
  11. Device according to claim 10,
    characterized in that,
    seen in the conveying direction (4) of the pallets (7; 7'), before the second compacting station (60) a scraping device (80) is provided, the stripper edges (83) of which are essentially aligned with the upper side of the pallets (7; 7').
  12. Device according to claim 11,
    characterized in that,
    seen in the conveying direction (4) of the pallets (7; 7'), between the first compacting station (40) and the scraping device (80) an optionally movable additional compacting station (70) is arranged which serves as pre-compacter and presents an elongated compacting tool (71) aligned transversely to the conveying direction (4) and filling out the cross-section of the cavity (8; 8').
  13. Device according one of claims 6 to 12,
    characterized in that
    pneumatic or hydraulic piston-cylinder units (55; 54; 64; 63; 74; 73) are provided as actuating device (53; 62; 72) for the compacting tools (50; 61; 71).
  14. Device according to claim 12,
    characterized in that,
    seen in the conveying direction (4) of the pallets (7; 7), before the additional compacting station (70) a further scraping device (85) is provided, the stripper edges (88) of which are essentially aligned with the uperside of the pallets (7; 7').
  15. Device according to one of claims 6 to 14,
    characterized in that
    within a continuous row of pallets, pallets (7; 7') are provided which differ from each other in the size of their cavities (8; 8').
  16. Device according to one of claims 6 to 15,
    characterized in that
    near the conveying path of the pallets (7; 7') at least one detector (5) is placed which senses the size of the cavity (8; 8') of each pallet (7; 7'), and that the detector signals generated herewith can be supplied to the filling station (20) as well as to one or more compacting stations (40; 60; 70).
  17. Device according to one of claims 6 to 16,
    characterized in that
    the conveying device is shaped for the stepwise advance of the pallets (7; 7') and presents essentially a reversibly acting pneumatic or hydraulic piston-cylinder unit (12; 11) by the means of which an advance traveller (13) acting upon the pallets (7; 7') can be displaced along a certain distance in conveying direction (4).
  18. Device according to claim 17,
    characterized in that
    the filling station (20) and the compacting station (40; 60; 70) are stationary and that the operations of these stations are performed during the standstill times of the pallets (7; 7') in the course of their stepwise advance.
EP87904041A 1987-06-23 1987-06-23 Process and device for manufacturing roof covering board with transverse integrally formed flange Expired - Lifetime EP0320504B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87904041T ATE80829T1 (en) 1987-06-23 1987-06-23 METHOD AND DEVICE FOR THE MANUFACTURE OF ROOFING PANELS WITH FORMATED CROSS FLANGE.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP1987/000329 WO1988010185A1 (en) 1987-06-23 1987-06-23 Process and device for manufacturing roof covering board with transverse integrally formed flange

Publications (2)

Publication Number Publication Date
EP0320504A1 EP0320504A1 (en) 1989-06-21
EP0320504B1 true EP0320504B1 (en) 1992-09-23

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ID=8165193

Family Applications (1)

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EP87904041A Expired - Lifetime EP0320504B1 (en) 1987-06-23 1987-06-23 Process and device for manufacturing roof covering board with transverse integrally formed flange

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EP (1) EP0320504B1 (en)
JP (1) JPH0641130B2 (en)
AT (1) ATE80829T1 (en)
AU (1) AU608760B2 (en)
DE (2) DE3781896D1 (en)
DK (1) DK166949B1 (en)
ES (1) ES2009010A6 (en)
NO (1) NO173595C (en)
WO (1) WO1988010185A1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2277707B (en) * 1993-04-29 1996-07-03 Redland Technology Ltd Improvements in a roof tile making machine
CA2467250C (en) * 2001-11-16 2006-10-24 Associated Property Investments Llc Installation for producing reinforced concrete parts
ES2189676B2 (en) * 2001-11-16 2004-09-16 Associated Property Investments L.L.C. INSTALLATION TO MANUFACTURE CONCRETE CONCRETE PARTS.
MY161266A (en) * 2008-03-05 2017-04-14 Monier Technical Centre Gmbh Tile making and shaping apparatus
US8438981B2 (en) 2008-06-20 2013-05-14 Oria Collapsibles, Llc Pallet design with buoyant characteristics
US8522694B2 (en) 2008-06-20 2013-09-03 Oria Collapsibles, Llc Structural supporting pallet construction with improved perimeter impact absorbing capabilities
US8167605B2 (en) * 2008-06-20 2012-05-01 Oria Collapsibles, Llc Production assembly and process for mass manufacture of a thermoplastic pallet incorporating a stiffened insert
US8701569B2 (en) 2008-06-20 2014-04-22 Oria Collapsibles, Llc Pallet design with structural reinforcement
CN103213188B (en) * 2013-03-28 2015-04-08 南京环力重工机械有限公司 Concrete slab continuous extruder
CN103213187B (en) * 2013-03-28 2015-05-27 南京环力重工机械有限公司 Continuous extrusion device for hollow concrete slabs

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE228197C (en) *
DE270524C (en) *
US430366A (en) * 1890-06-17 Roofing and sheathing tile
US730131A (en) * 1903-02-09 1903-06-02 Klay Company Ab Tile.
US1792844A (en) * 1929-09-18 1931-02-17 Knecht Jakob Machine for making artificial building stone
GB666649A (en) * 1949-05-02 1952-02-13 Pegson Ltd Improvements in or relating to tile making machines
US2965949A (en) * 1957-10-07 1960-12-27 Gus W Lang Machines for forming and coating roofing tiles
DE1102029B (en) * 1959-04-30 1961-03-09 Ziegelwerke Emil Bott G M B H Method and device for manufacturing concrete roof tiles
US3193903A (en) * 1962-05-11 1965-07-13 Nordon Inc Tile casting installation
US3220150A (en) * 1962-12-17 1965-11-30 Besse Louis Lucien Reversible roof tiles
US3303245A (en) * 1963-09-09 1967-02-07 Terraz Epoxy Inc Process for production of tile products
AU425215B2 (en) * 1968-07-26 1972-06-16 BRAMALL INDUSTRIES PROPRIETARY LIMITED and MALCOLM JOHN AUSTRALIA PTY. LTD Tile and method of production
DE2042743A1 (en) * 1970-08-28 1972-03-02 Schlosser & Co GmbH, 6209 Michel bacher Hütte Device for attaching a head or the like rib to roof tiles made of concrete or the like plastic masses
GB1514926A (en) * 1974-09-05 1978-06-21 Anchor Building Prod Ltd Method and apparatus for use in the manufacture of concrete roofing tiles
US4131670A (en) * 1975-09-05 1978-12-26 Solai Vignola Di Fabiani Orlando E C.-Societa In Nome Collettivo Method of making prefabricated building components of expanded material and cement
AT344575B (en) * 1975-10-27 1978-07-25 Johann Schmitzberger MOLDING MACHINE
US4145860A (en) * 1976-04-22 1979-03-27 Martin E. Gerry Simulated spanish mission tile
CA1198882A (en) * 1982-04-08 1986-01-07 Marley Tile A.G. Roof tiles
US4789313A (en) * 1987-04-08 1988-12-06 Flowdrill Corporation Apparatus for and method of pumping output fluids such as abrasive liquids

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DE3811914A1 (en) 1989-01-05
DK78789D0 (en) 1989-02-21
NO173595B (en) 1993-09-27
WO1988010185A1 (en) 1988-12-29
US5080840A (en) 1992-01-14
NO890732D0 (en) 1989-02-21
JPH02500262A (en) 1990-02-01
DK78789A (en) 1989-04-04
DE3781896D1 (en) 1992-10-29
AU608760B2 (en) 1991-04-18
NO890732L (en) 1989-04-14
NO173595C (en) 1994-01-05
DK166949B1 (en) 1993-08-09
EP0320504A1 (en) 1989-06-21
ATE80829T1 (en) 1992-10-15
AU7584087A (en) 1989-01-19
ES2009010A6 (en) 1989-08-16
JPH0641130B2 (en) 1994-06-01

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