摘要:
A press and a method for laminating essentially plate-shaped workpieces under the effect of pressure and heat. In the closed state, a lower press half and an upper press half form a vacuum chamber utilizing a peripheral, one-part, or multi-part seals. A flexible membrane divides the vacuum chamber into a product half that can be evacuated that holds at least one workpiece and a pressure half that can be pressurized. The membrane is constructed and arranged so that it presses the workpiece directly or indirectly against a bottom side of the vacuum chamber due to a pressure difference generated in the vacuum chamber due to the evacuation of the product half and/or due to the pressurization of the pressure half. The membrane is mounted on a membrane frame that can be handled separately and that is connected detachably to the upper press half and that can be mounted on the membrane frame or tensioned in the frame from outside of the press. At least one membrane frame with a membrane mounted on the frame is stored as a replacement frame outside of the press in a magazine.
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 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 and a device for laminating essentially plate-shaped workpieces 20, 21 with at least one adhesive layer 402 that can be heat activated and cured under the effect of pressure and heat is provided. A number of workpieces 20, 21 is inserted into a multiple-stage vacuum lamination press 200, in which the workpieces 20, 21 are laminated in press stages each with a vacuum chamber divided by a flexible pressure member 30b, 31b, 32b, 150, 151 into a product half 141 and a pressure half 131 under the effect of heat, wherein the product half 141 of the vacuum chamber, in which at least one workpiece 20, 21 is arranged, is evacuated and the pressure member presses the workpiece 20, 21 directly or indirectly against a bottom side of the vacuum chamber due to the resulting low pressure and/or due to an additional pressurization of the pressure half of the vacuum chamber, which is arranged on the side of the pressure member facing away from the workpiece 20, 21. The lamination process is interrupted by opening the multiple-stage vacuum lamination press 200 and the number of pre-laminated workpieces 20, 21 are transferred into a multiple-stage laminator 201, and that the workpieces 20, 21 in the multiple-stage laminator 201 are exposed to a temperature at or above the curing temperature of the adhesive layers.