Abstract: A coating device for applying a coating agent to the surface of a workpiece. The coating device includes a frame with a workpiece receptacle, a coating agent source and a rotary unit which is rotatable in relation to the frame. The rotary unit has a pump and a plurality of spray units, with the pump on the suction side being connected to the coating agent source by a fluid-conducting rotary joint connection. The rotary unit has a pneumatic valve device, and the spray units have in each case one compressed air controlled valve for controlling the delivery of coating agent. The inlet side of the valve is connected to the compressed air source by a fluid-conducting rotary feedthrough, which simplifies the overall construction of the coating device by providing a pneumatic connection between the compressed air source and the rotary unit that is independent of the rotation angle.

Abstract: A cleaning device for a residue contaminated conveyor belt includes a roller arranged below the conveyor belt such that the lateral surface thereof contacts a lower strand of the conveyor belt, and a cleaning belt is arranged below the roller. The lateral surface of the roller contacts an upper strand of the cleaning belt, which is tilted relative to a main conveying direction at the upper strand relative to a longitudinal roller axis. A dispensing device on and/or above the cleaning belt feeds a solvent thereon. The dispensing device and the cleaning belt are relatively arranged such that the solvent from the cleaning belt is conveyed by a conveying movement of the cleaning belt into a region in which the cleaning belt contacts the roller, which via a rotational movement, at least partially picks up the solvent located on the cleaning belt and dispenses it onto the conveyor belt.

Abstract: A coating device for applying a coating agent to the surface of a workpiece. The coating device includes a frame having a workpiece receptacle, a coating agent source, a compressed air source, and a rotary unit which is rotatable in relation to the frame. The rotary unit has a pump and a plurality of spray units, the pump on the suction side being connected to the coating agent source by a fluid-conducting rotary joint connection, and on the pressure side being connected to the spray units. The rotary unit has a pneumatic valve device, and the spray units have in each case one compressed air controlled valve for controlling the delivery of coating agent. The valve on the inlet side is connected to the compressed air source by a fluid-conducting rotary feedthrough and on the exhaust air side is connected to the compressed air controlled valves of the spray units.

Abstract: A UV irradiation apparatus for coating systems that coat rigid or film-like workpieces, in particular furniture parts, having a transport apparatus for transporting workpieces provided with coating material from an inlet to an outlet through the UV irradiation apparatus, a UV light source arranged above the transport apparatus that irradiates the coated workpieces with UV light in an irradiation region between the inlet and the outlet, and a reflector or cover which shields the UV light source upward. A housing covers the irradiation region and the UV light source, which generally extends above the transport apparatus. A sensor of a measuring apparatus for direct or indirect automated measurement of radiant flux of the UV light source is arranged in the housing, and the sensor is in particular fitted fixed or movably on the housing or a holder. A method for quality assurance using this UV irradiation apparatus is also provided.

Abstract: The invention relates to a laminating device (10) and a laminating method for laminating at least one layer stack (11), comprising at least one substantially plate-shaped workpiece (11a) and at least one adhesive material layer (11b), by means of pressure and/or heat. The laminating device comprises a lower part (12) and an upper part that can be connected to the lower part (12) in a gas-tight manner. A working chamber (14) which can be opened and closed and which is for receiving the layer stack (11) during lamination is formed between the lower part (12) and the upper part (13). A pressure plate (15) can be moved along a press axis (a-a) in the working chamber (14) between the upper part (13) and the lower part (12). At least one sealing frame (21) is arranged between the lower part (12) and the upper part (13).

Abstract: A heated roll with a circular cylindrical casing tube 1 made from thermally conductive metal, which is closed at its end faces with caps 2, 3. One or more electric heating mats 8 are arranged inside the casing tube 1. By at least one connection pin 5, which is arranged at one cap 2, connection cables 11 are guided for supplying the heating mats 8 with electric power. Annular brushing bodies 7 are fastened at the connection pin 5 and serve for the electric contacting of the connection cables 11. A tensioning device 9, 14, 15 is arranged inside the casing tube 1, which presses the heating mats 8 permanently against the interior surface of the casing tube 1.

Abstract: A heated roll with a circular cylindrical casing tube 1 made from thermally conductive metal, which is closed at its end faces with caps 2, 3. One or more electric heating mats 8 are arranged inside the casing tube 1. By at least one connection pin 5, which is arranged at one cap 2, connection cables 11 are guided for supplying the heating mats 8 with electric power. Annular brushing bodies 7 are fastened at the connection pin 5 and serve for the electric contacting of the connection cables 11. A tensioning device 9, 14, 15 is arranged inside the casing tube 1, which presses the heating mats 8 permanently against the interior surface of the casing tube 1.

Abstract: A method for laminating essentially plate-shaped work pieces with a thermally activated adhesive layer, particularly photovoltaic modules. Work pieces are inserted into a vacuum chamber having a compression element dividing the vacuum chamber in a gas tight fashion that can be raised and lowered by pressure differences. The compression element presses against the work piece which in turn presses against a heating plate which forms a lower side of the vacuum chamber, with processing heat being transferred into the work piece to soften the adhesive. The work piece is first impinged by the compression element with a slight load from approx. 2% to 10% of the defined processing load, and is simultaneously kept below the adhesive activation temperature. Thereafter, the slight load is lifted off the work piece and the work piece is heated to the activation temperature and impinged via the compression element with the processing load.

Abstract: A method for carrying out a belt run correction for a conveyor belt 5 of a press having at least one press layer 1, 1?, 1?, 1??. This layer includes a lower press plate 3 and an upper press plate 4 that can be moved relative to one another in order to open and close the press layer 1, a conveyor belt 5 that runs around the lower press plate 3 for conveying a workpiece into and out of the press layer 1, and at least one deflection roller 7, 8 for the conveyor belt 5, situated at an end face of the lower press plate 3, that deflects the conveyor belt 5 from the upper side to the lower side of the lower press plate 3 and vice versa. A tension device 6 for tensions and relaxes the conveyor belt 5, with the deflection roller 7 being movable by the tensioning device 6 relative to the lower press plate 3, and being moved axially as needed in order to carry out the belt run correction. A press is provided having a corresponding design.

Abstract: A method for laminating essentially plate-shaped work pieces with a thermally activated adhesive layer, particularly photovoltaic modules. Work pieces are inserted into a vacuum chamber having a compression element dividing the vacuum chamber in a gas tight fashion that can be raised and lowered by pressure differences. The compression element presses against the work piece which in turn presses against a heating plate which forms a lower side of the vacuum chamber, with processing heat being transferred into the work piece to soften the adhesive. The work piece is first impinged by the compression element with a slight load from approx. 2% to 10% of the defined processing load, and is simultaneously kept below the adhesive activation temperature. Thereafter, the slight load is lifted off the work piece and the work piece is heated to the activation temperature and impinged via the compression element with the processing load.

Abstract: A method for the production of a photovoltaic module, which essentially combines a transparent front substrate, such as a glass cover 1, a rear substrate, such as a rear film 6, a layer of solar cells 3 positioned therebetween, and a thermally activated softening adhesive layer 2 to form a laminar structure. For sealing the edges of the photovoltaic module, a linear body 7 framing at the edges and surrounding the layer of solar cells 3 having a thermally activated adhesive material 9 is placed between the front substrate 1 and the rear substrate 6, with the thermally activated adhesive material 9 of the linear body 7 being selected such that it does not soften or softens slower and/or at higher temperatures compared to the thermally activated adhesive layer 2 or has a higher viscosity in reference to the thermally activated adhesive layer 2. A photovoltaic module is also provided.

Abstract: A method and an arrangement for the production of composite work pieces of layers laminated to each other, with at least one layer representing a glass plate. First, at least one composite work piece is laminated in a lamination press under the effects of pressure and heat in order to at least activate the adhesive material used for lamination. Then the composite work piece is removed from the lamination press and transported into a curing station and/or cooling station for curing and/or cooling. A testing device for detecting broken glass in the composite work piece is arranged between the lamination press and the curing station or between the lamination press and the cooling station, which detects potentially present broken glass by testing the inherent stability of the composite work piece.

Abstract: A device for creating a three-dimensional molded part (30) made from fiber material using of a multiple-part mold (1, 2) whose inside (1a, 2a) determines, at least partially, the contours of the molded part. The fibers are blown into the mold by an air flow using a plurality of nozzles (4) and the air flow then escapes through openings of the mold, so that the fibers accumulate on the inside of the mold, whereupon the fibers are optionally compressed locally before they are bonded with each other through the supply of heat and are finally taken from the mold (1, 2) as a molded part (30). The blowing direction of the nozzles (4, 24, 34) can be pivoted and the pivot axes extend close to the outside of the molded part and the fibers are blown in by the nozzles (4, 24, 34) that are activated at different times.

Abstract: A press that comprises at least one press stage with a lower and upper press plates that can be moved relative to each other for opening and closing the press stage is provided having a conveyor belt circulating around the lower press plate for feeding a work piece to be processed into and out of the press stage. The lower press plate is provided with a tensioning device for tensioning and relaxing the conveyor belt, as well as a belt-run correction device. The belt-run correction device comprises a displacement device for shifting the conveyor belt perpendicular to a running direction and this displacement device is synchronized with the tensioning device such that the conveyor belt is displaced for performing a correction movement in its relaxed state and when the conveyor belt is stopped.

Abstract: A press for laminating essentially planar work pieces under the effects of pressure and heat is provided, having a bottom half of the press and a top half of the press, which are movable in reference to each other in order to open and close the press, with the bottom half of the press and the top half of the press, in the closed state, together with circumferential seals forming a vacuum chamber. A pliable diaphragm divides the vacuum chamber into a product space that can be evacuated and is provided to receive at least one work piece, and a pressure space that can be evacuated and/or impinged with pressure. The diaphragm is embodied and arranged such that due to the pressure difference in the vacuum chamber, created by evacuating the product space and/or by impinging it with pressure, the work piece is pressed directly or indirectly against the bottom of the vacuum chamber 14.

Abstract: A press for laminating essentially plate-shaped work pieces under the effect of pressure and heat is provided, with a lower press half (2) and an upper press half (3) that can move relative to each other in order to open and to close the press. The lower press half (2) and the upper press half (3) form, through the use of peripheral, one-part or multi-part seals (12, 13), in the closed state, a vacuum chamber (14). A flexible membrane (11) divides the vacuum chamber (14) into a product space (16) that can be evacuated and that is provided for holding at least one work piece (1) and into a pressure space (17) that can be evacuated and/or pressurized. The membrane (11) is constructed and arranged so that it presses the work piece (1) directly or indirectly against a bottom side (2) of the vacuum chamber (14) due to a pressure difference generated through evacuation of the product space (16) and/or through pressurization of the pressure space (17) in the vacuum chamber (14).

Abstract: A device for creating a three-dimensional molded part (30) made from fiber material using of a multiple-part mold (1, 2) whose inside (1a, 2a) determines, at least partially, the contours of the molded part. The fibers are blown into the mold by an air flow using a plurality of nozzles (4) and the air flow then escapes through openings of the mold, so that the fibers accumulate on the inside of the mold, whereupon the fibers are optionally compressed locally before they are bonded with each other through the supply of heat and are finally taken from the mold (1, 2) as a molded part (30). The blowing direction of the nozzles (4, 24, 34) can be pivoted and the pivot axes extend close to the outside of the molded part and the fibers are blown in by the nozzles (4, 24, 34) that are activated at different times.

Abstract: A multi-layer laminating press including hot plates arranged over top of and movable in reference to each other, conveyers revolving around the hot plates, sealing elements that assist in forming vacuum chambers between each of a first hot plate and a respectively adjacent second hot plate arranged thereabove when the press is closed. The second conveyor lower run of the second hot plate rests on the first conveyor upper run of the first hot plate and the work piece to be laminated is arranged between the first conveyor upper run and the second conveyor lower run in the vacuum chamber. Connections are provided to pressurize and/or evacuate the vacuum chambers. The vacuum chambers are limited by either the first hot plate and the second conveyor lower run, or the second hot plate and the first conveyor upper run, without the interposition of another membrane for laminating the workpiece.

Abstract: A method and a laminating press for laminating work pieces which have at least one adhesive layer that can be activated by heat, under the effects of pressure and heat. Here, at least one work piece is introduced into an open press chamber of a laminating press that can be closed in an air-tight fashion. The press includes an upper chamber half and a lower chamber half. They are movable in reference to each other in order to open and close the press chamber, and a circumferential gasket is arranged between the upper and the lower chamber half. A membrane is mounted directly or indirectly at the upper chamber half and divides the press chamber in an air-tight fashion, and a heater is located to heat the work piece.

Abstract: A method and a device for laminating essentially planar work pieces with at least one adhesive layer that can be activated by heat, under the effects of pressure and heat. Initially at least one work piece is inserted into a vacuum chamber of a vacuum lamination press which is divided by a gas-tight flexible compression member into a product half and a pressure half. In the product half of the vacuum chamber, the work piece is subjected to a lamination process under the effects of heat, in which the product half is evacuated and the compression member is pressed directly or indirectly against the bottom of the vacuum chamber by the pressure difference developing here and/or by an additional pressurization of the pressure half of the vacuum chamber. The lamination process is interrupted by opening the vacuum lamination press, the work piece is transferred into a laminator, and here it is subjected to a temperature at or above the activation temperature and/or the curing temperature of the adhesive layer.