A screen printing method of the present disclosure includes: a step of performing printing of a first viscous fluid through a screen on the first circuit board using a first squeegee and a first holding member; and a step of performing printing of a second viscous fluid through the screen on the second circuit board using a second squeegee and a second holding member. As described above, in the printing of the first viscous fluid on the first circuit board and the printing of the second viscous fluid on the second circuit board, squeegees and holding members different from each other are used, and thus, the first viscous fluid and the second viscous fluid do not mix with each other. As a result, it is possible to perform printing of different types of viscous fluids on the first circuit board and the second circuit board.

A screen printing apparatus includes a squeegee driver that lifts/lowers a first lifting/lowering shaft and a second lifting/lowering shaft; a link mechanism including a swinging member that pivots about a horizontal axis by lifting/lowering operations of the first lifting/lowering shaft and the second lifting/lowering shaft; a squeegee unit installed to the swinging member; and a controller that controls at least a height of the squeegee unit and an orientation of the squeegee unit in a rotating direction by controlling the squeegee driver.

A solder paste printer for which a pressing force of squeegee towards a stencil when spreading solder paste is smaller than a printing pressure when performing solder paste printing. The force with which the solder paste is pressed downwards by the squeegee is weak, and instead of solder paste being pressed down, it spreads along the squeegee. Also, the moving speed of the squeegee when spreading the solder paste is faster than the moving speed of the squeegee when printing solder paste. Thus, because the squeegee is moving fast, before the solder paste is pressed down sufficiently to be printed, the solder paste spreads out along the squeegee. Accordingly, it is possible to appropriately spread the solder paste along the direction in which the squeegee extends.

An object is to provide a screen printing machine capable of one-way printing on multiple boards. Solder collecting device includes collecting plate moving device, collecting plate, and scraper. Second slider of collecting plate moving device is movable in a front-rear direction along a second guide rail, and is also movable in an up-down direction. Collecting plate is placed on second slider. After squeegee passes by the tail end of printing region of mask, collecting plate is disposed so as to be positioned rearward of squeegee and collects the cream solder moved by the rearward movement of squeegee. Scraper is attached to collecting plate to be movable in a left-right direction and collects the cream solder remaining on mask.

A screen printing apparatus includes a squeegee driver that lifts/lowers a first lifting/lowering shaft and a second lifting/lowering shaft; a link mechanism including a swinging member that pivots about a horizontal axis by lifting/lowering operations of the first lifting/lowering shaft and the second lifting/lowering shaft; a squeegee unit installed to the swinging member; and a controller that controls at least a height of the squeegee unit and an orientation of the squeegee unit in a rotating direction by controlling the squeegee driver.

A producing method of a base member provided with a printed layer, the method including: disposing a printing plate including a screen plate having an opening pattern and a frame body supporting the screen plate so that the printing plate is opposed to a printing target surface of the base member having at least one bent portion; disposing a squeegee so as to be opposed to a plate surface of the screen plate opposite to the base member; and forming the printed layer by extruding a printing material onto the printing target surface by the squeegee via the opening pattern of the screen plate in a state where the frame body is supported so as to be relatively movable with respect to the printing target surface in a normal direction of the printing target surface.

A producing method of a base member provided with a printed layer, the method including: disposing a printing plate including a screen plate having an opening pattern and a frame body supporting the screen plate so that the printing plate is opposed to a printing target surface of the base member having at least one bent portion; disposing a squeegee so as to be opposed to a plate surface of the screen plate opposite to the base member; and forming the printed layer by extruding a printing material onto the printing target surface by the squeegee via the opening pattern of the screen plate in a state where the frame body is supported so as to be relatively movable with respect to the printing target surface in a normal direction of the printing target surface.

A precision squeegee grinder including a grinder assembly configured to grind an edge of a squeegee blade, a squeegee mounting assembly configured to hold the squeegee blade, a grinder assembly vertically alignable with respect to the squeegee mounting assembly, a latitudinal movement assembly connected to the grinder assembly, the latitudinal movement assembly configured to position the grinder assembly with respect to the squeegee blade in defined increments, a longitudinal movement assembly connected to the latitudinal movement, the longitudinal movement assembly configured to move the grinder assembly along a width of the squeegee blade, and a base assembly. The grinder assembly, the squeegee mounting assembly, the latitudinal movement assembly, and the longitudinal movement assembly are connected to the base assembly. The squeegee mounting assembly, the latitudinal movement assembly, and the longitudinal movement assembly enable triaxial alignment between the grinder assembly and the squeegee blade.

A printing device includes a coating material scooping unit configured to scoop a coating material on a mask, and a controller configured or programmed to determine whether or not the coating material scooping unit performs collecting operation to collect the coating material on the mask when the mask is replaced.

A sports ball having a cover with an outer substrate surface is provided. The cover includes a plurality of raised lenticular features each having a terminus and a plurality of land areas. The raised lenticular features are formed from dimensional ink and disposed upon and extend from the outer substrate surface, such that each terminus is spaced apart from the outer substrate surface by a height greater than about 0.05 millimeters. The cover, including raised lenticular features and the land areas, defines a plurality of directionally-based designs within the physical surface geometry thereof, such that a first design is visible when the sports ball is viewed from a first viewing angle, a second design is visible when the sports ball is viewed from a second viewing angle, and a third design is visible when the sports ball is viewed from a third viewing angle.