The present invention relates to a curved surface screen printing apparatus performing printing on a surface to be printed of a base material having a curved surface, including: a screen plate formed with a pattern and arranged above the base material; a squeegee which is disposed above the screen plate and applies an ink to the surface to be printed of the base material through the screen plate; and a base material moving mechanism which moves the base material along a vertical plane and is capable of swinging the base material with respect to an axis orthogonal to the vertical plane.

A rotary screen printing press is provided with a screen-cylinder throw-on/off motor encoder (231) that detects the position of a screen cylinder (201), a squeegee throw-on/off motor encoder (232) that detects the position of a squeegee (221), and a control unit (300) that controls screen cylinder throw-on/off motors (209) and squeegee throw-on/off motors (224) based on the position of the screen cylinder (201) detected by the screen-cylinder throw-on/off motor encoder (231) and the position of the squeegee (221) detected by the squeegee throw-on/off motor encoder (232) so that the squeegee (221) may not contact a screen plate (201A) except when the screen plate (201A) is in contact with an impression cylinder (100).

A screen printing apparatus includes a pair of clampers that clamp a substrate, a mask plate contacted to the substrate, a pair of squeegees provided above the mask plate vertically, and a squeegee controller that selectively controls one of the pair of squeegees to move in the horizontal direction in abutment against the mask plate so that the selected one of the pair of squeegees slides on the mask plate.

A screen printer in which a squeegee is lowered towards a screen when the internal pressure of a second air chamber of a pressing force adjusting air cylinder is decreased. A control section performs control of an air regulator based on response times from starting control of the air regulator to decrease or increase the internal pressure of the second air chamber until a value detected by a pressure sensor reaches a target value of the internal pressure.

Precision screen printing is described that is capable of sub-micron uniformity of the metallization materials that are printed on green sheet ceramic. In some examples, puck is formed with electrical traces by screen printing a paste that contains metal on a ceramic green sheet in a pattern of electrical traces and processing the printed green sheet to form a puck of a workpiece carrier. In some example, the printing includes applying a squeegee of a screen printer to the printed green sheet in a squeegeeing direction while the green sheet is on a printer bed of the screen printer. The method further includes mapping the printer bed at multiple locations along the squeegeeing direction, identifying non-uniformities in the printer bed mapping, and modifying a printer controller of the screen printer to compensate for mapped non-uniformities in the printer bed.

A solder supply device provided with a solder cup housing liquid solder that is tubular and open at one end; a nozzle section, for ejecting solder from the solder container, that is inserted into the solder container; a flange section that is provided on an outer circumferential section of the nozzle section and that is engaged inside of the solder cup; and an outer tube that demarcates an air chamber with the bottom surface of the solder cup. Solder is supplied from the tip of the nozzle section by the solder cup and the flange section being relatively moved by supplying air to the air chamber. Solder is supplied from the solder container without using an air cylinder, electromagnetic motor, or the like.

A printing apparatus includes a screen, a scraper, and a squeegee. The screen has a screen surface which has a width direction and which is placed on a workpiece. The scraper is movable along the screen surface in a first direction perpendicular to the width direction so as to coat the screen surface with a paste. The scraper includes an upper portion and a curved portion. The upper portion extends from an upper end to a lower end of the upper portion toward the screen surface. The curved portion is connected to the lower end of the upper portion. The curved portion has a curved shape projecting toward a second direction opposite to the first direction. The curved portion has an opening extending in the width direction. The squeegee is movable along the screen surface so as to transfer the paste to the workpiece.

A screen printing apparatus comprises print executing parts 20A, 20B, first and second substrate loading parts En1, En2 and a substrate unloading part Ex, and first and second substrate support tables 10A, 10B for supporting a substrate W to enable printing thereon by the print executing parts 20A, 20B. The first substrate support table 10A moves between a first receiving position where the substrate W loaded from the first substrate loading part En1 is received, and a sending position where the substrate W is unloaded from the substrate unloading part Ex. The second substrate support table 10B moves between a second receiving position where the substrate W loaded from the second substrate loading part En2 is received, and the sending position. The print executing parts 20A, 20B are respectively placed at positions on the substrate support tables 10A, 10B where printing on the substrate W is enabled.

A method of performing screen printing on a substrate used for the manufacture of a solar cell is provided. The method includes moving a print head over a screen by a first drive actuator to perform a printing stroke in a first direction. The method includes moving a material processing head in the first direction by a second drive actuator to perform a material processing stroke behind the print head. The print head is moved away from the material processing head by the first drive actuator during a distance increasing phase of the printing stroke to increase a separation distance between the print head and the material processing head.

A stencil printer is configured to print an assembly material on an electronic substrate. The stencil printer includes a frame, a stencil coupled to the frame, a support assembly coupled to the frame, and a print head gantry coupled to the frame. The print head gantry includes an elongate beam that rides along rails provided on the frame and a print head assembly supported by the print head gantry in such a manner that the print head assembly is configured to traverse the stencil during print strokes. The print head assembly includes a print head having a squeegee blade assembly configured to roll solder paste along the stencil. The stencil printer further includes a solder paste bead recovery system configured to remove a bead of solder paste from a top surface of the stencil and to deposit the bead of solder paste onto a new replacement stencil.