The invention relates to making thermal roof tiles, more particularly to a split mould with a cutting portion, which makes it possible to cut out a formed article (the thermal roof tile) off a continuous sheet placed on the mould. The technical result of the invention is the improved accuracy of cutting out the article independent of the mould moving mechanisms feeding thereof into the cutting zone. The split mould for making thermal roof tiles comprises top and bottom shaping parts configured to be interconnected with each other by means of locking elements, wherein the cutting portion is arranged on the top shaping part and is configured to cut the top edge of the article along the perimeter of the inner surface of the mould when the latter is subjected to hold-down pressure.
The invention relates to the building materials industry and can be used for manufacturing multi-layered roof tiles with thermal and acoustic insulation properties. A production line for manufacturing thermal insulation roof tiles comprises, arranged sequentially in the manufacturing direction and operationally interconnected, a crystallizer with a means for receiving ingredients of the starting material from containers thereof, intended for the mixing and crystallization of said ingredients followed by feeding the resulting mixture to an automatic feeder of a drier mounted above the feed hopper of an extruder with a flat-slot die equipped with heaters and temperature sensors, wherein an extruder screw is configured with heating zones up to 300°C and a threaded shaft intended to increase screw pressure and to create a melt backflow thus homogenising the mixture; a three-roll calender producing an infinitely long flat sheet from the flat sheet formed by the flat-slot die; a take-off assembly; a sheet reheating station; a sheet vacuum blow moulding device which places the sheet in moulds and shapes it into roof tiles; a foam moulding machine with a mixing die and a table for filling moulds with a polyurethane foam; a conveyer comprising two belts, a lower carrying and pulling belt and an upper pressure belt which holds down a protective polyethylene terephthalate film or a metallized polyethylene terephthalate film or a polyvinyl chloride film, the film being automatically pulled from the roll; a cutting press installed downstream from the conveyor, which severs and separates the mould along with an article moulded therein, which is filled with the cured foamed polyurethane from the sheet, wherein a knife is embedded into the mould and moves with it; and a conveyor for returning the moulds. The invention makes it possible to enhance the thermal insulation and acoustic insulation properties of the roofing, to reduce the article weight, to impart reflecting properties to the roof tiles, to increase productivity due to the continuous process, and to improve product manufacturing precision.
B29C 44/50 - Alimentation en matière à mouler dans une cavité de moulage ouverte ou sur une surface mobile, c.-à-d. pour la fabrication d'objets de longueur indéfinie par différence de pression, p. ex. par extrusion ou par pulvérisation
B29C 51/10 - Formage par une différence de pression, p. ex. sous vide
E04D 1/30 - Éléments de couvertures particuliers, p. ex. tuiles faîtières, noues, tuiles pour pignons, tuiles d'aération
E04D 3/32 - Couverture de toit utilisant des plaques planes ou incurvées ou des feuilles rigides à profil en travers particulier, p. ex. avec des ondulations sur les deux faces, avec des nervures, des rebords ou similaires en matières plastiques ou fibreuses ou amiante ciment
B29C 47/14 - avec une large ouverture, p.ex. pour feuilles
The invention relates to construction, in particular to a special tile which provides thermal and heat insulation which does not damage the environment, stores solar energy and produces electrical energy, and which can be used in the construction of roof coverings of roofs of industrial and public buildings and structures. A roof tile comprises an upper protective layer, under which a photovoltaic cell is mounted, wherein the upper protective layer is formed from polyethylene terephthalate, and the following are arranged consecutively under the photovoltaic cell: a heat-insulating and sound-insulating layer made from polyurethane foam, a cardboard layer, a technical layer formed from high-pressure polyethylene and a lower protective layer formed from polyethylene terephthalate with a metallized base. The metallized base is formed from aluminium. The upper protective layer is transparent, for the transmission of solar energy to the photovoltaic cell.
The invention relates to building and can be used in the installation of roof coverings for industrial and public buildings and structures. A roofing tile comprises a lower protective layer made of polyethylene terephthalate and having a metallized base, a technical layer made of high-pressure polyethylene, a layer of cardboard, a heat and sound insulating layer made of polyurethane foam, and an upper protective layer made of polyethylene terephthalate. The metallized base is made of aluminium. The upper protective layer is dyed throughout its entire thickness with modified UV stabilizers and fire retardant agents. The claimed invention provides enhanced heat insulating and sound insulating properties.
E04D 1/28 - Éléments de couvertures comprenant plusieurs couches, p. ex. pour l’isolation
E04D 11/00 - Couverture de toit dans la mesure où elle ne se limite pas aux caractéristiques couverts par un seul des groupes Couverture de toit réalisée par des moyens non prévus dans les groupes
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