Abstract: A screen printing device is provided having a printing screen, a printing squeegee and a support for printing material to be printed. At least one articulated arm robot is provided to move the printing squeegee and/or the support in relation to the printing screen.

Abstract: A method and device for printing solar cells by screen printing is provided. During the pressure movement of the doctor blade, the printing screen is raised at the end thereof which at the rear with respect to the doctor blade movement direction during printing in order to maintain a screen release angle between the screen and the solar cell behind the doctor blade above a critical value. The method and device may be used for printing surface contacts or flat coatings on solar cells.

Abstract: The invention relates to a machining line for plate-type elements, particularly solar cells. According to the invention, a machining station and a positioning station for aligning the plate-type elements relative to a reference point with a predefined position tolerance are provided. The positioning station is connected to the input side of the machining station in the flow direction of the material, and conveying devices are provided for moving the plate-type elements from the positioning station to the machining station while maintaining the predefined position tolerance.

Abstract: A cleaning method for the screen stencil of a silk-screen printing machine. According to the method, prior to an intermediate printing process designed to clean the screen stencil, the underside of the stencil is wetted with a cleaning agent that dissolves dye. An intermediate printing device includes an intermediate printing roll that can be displaced back and forth. A rotating roll that is immersed in a cleaning bath is situated at the front end of the intermediate printing roll. The rotating roll can be brought into contact with the underside of the screen stencil prior to the intermediate printing process by means of a pivoting device.

Abstract: A device for screen printing includes a bearing surface for an object which is to printed and a printing mechanism including at least one printing mechanism frame and a doctor blade holder for securing a doctor blade which can be displaceably guided in a longitudinal direction in the printing mechanism frame and which extends in a transversal manner inside the printing mechanism frame. The printing mechanism is arranged in a displaceable manner on a plane extending parallel to the longitudinal direction and at least in a perpendicular manner on the bearing surface, and a mechanism is provided for coordinated displacement of the printing mechanism and doctor blade holder. The device may be used, for example, for printing curved vehicle windshields.

Abstract: A screen printing squeegee doctor blade includes an elastic application element and a maintaining or gripping device. The grip is subdivided into several grip sections which can be displaced in relation to each other over the width of the screen printing doctor blade. The squeegee may be used, for example, for printing curved vehicle windshields.

Abstract: The invention relates to a cleaning method for the screen stencil of a silk-screen printing machine. According to said method, prior to an intermediate printing process designed to clean the screen stencil, the underside of said stencil is wet with a cleaning agent that dissolves dye. The invention also relates to an intermediate printing device comprising an intermediate printing roll that can be displaced back and forth. A rotating roll that is immersed in a cleaning bath is situated at the front end of said intermediate printing roll. The rotating roll can be brought into contact with the underside of the screen stencil prior to the intermediate printing process by means of a pivoting device.