摘要:
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.
摘要:
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. The pliable diaphragm is a web or a film with gas-tight and pliable features, that is generally non-expandable over its entire area and thus quasi inelastic. Further it is coated with a low-friction material and/or comprises such a material.
摘要:
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.
摘要:
A hot press for coating work pieces on their upper surfaces and lateral surfaces with a film as well as a work table therefor. The hot press includes a press table with a heating plate in the lower frame, displaceable in reference to the press table, having an upper frame, connections for pressurizing and/or evacuating the volumes circumscribed by the upper and lower frames, as well as at least one work piece carrier for supporting a work piece to be coated. A mold frame is provided in the lower frame at least partially encompassing the work piece carrier, which forms the edge of an area that is curved at least partially convexly or essentially cylindrically.
摘要:
A method for a multi-sided coating of work pieces with film is provided, in which the work pieces are put on a lower press component, subsequently the film is inserted into the press gap above the work pieces, the press is closed, and the film is heated from above. The film is briefly lifted off the upper sides of the work pieces and kept suspended prior to adherence.
摘要:
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). A transport band (4) runs through the vacuum chamber (14) and the work piece (1) is arranged thereon. The transport band (4) is structured at least on its surface facing the work piece (1) such that gas transport is possible within the transport band volume and at least partially along its surface.
摘要:
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. A film, inserted into the vacuum lamination press separately or together with the work piece or a film web guided through the vacuum chamber, is used as the flexible compression member.
摘要:
A method for coating flat structural parts (2), in particular furniture fronts, with a film (3), wherein the parts lie in a pallet (1) which is turned by about 180° in a rotator after the coating process, so that the coated parts (2) joined by a common film (3) can fall out of the pallet (1) and be separated. The essential point is that a pallet (1) which can be filled on two sides is used and that the previous turning back of the pallet after the part has been removed can be omitted.
摘要:
A sorting device for laminae, especially for inlaid floor laminae of wood, is proposed which has a delivery point in a horizontally extending transport track and a delivery track proceeding from the delivery point. The laminae to be sorted out are lifted up from the transport track and transferred to the delivery track arranged above the transport track by a controllable deflection apparatus which transmits an upwardly directed impulse to the laminae to be sorted out. To support a defined transfer of the sorted laminae to the delivery track, a guide element arranged above the delivery point can be present which is preferably constructed as a suction band conveyor with acceleration effect for the laminae.
摘要:
A device for aspirating coating material, such as paints, from the applicator gap between two applicator rollers provides two suction tubes, which are disposed horizontally displaceably and whose outlet ends communicate with an apparatus for generating a suction pressure as well as with in apparatus for collecting the aspirated coating material. Particularly when a photoresist is applied to a board-like substrate in the manufacture of printed circuit boards, accumulations of the coating material in the region of the edge of the substrate passing through the apparatus can be avoided without mechanically straining the applicator rollers. By means of the suction pressure apparatus, the quantity of coating material accumulating as the boards to be coated pass through the apparatus can be aspirated continuously and returned via a collection tank to the supply of coating material to be used.