A printing screen frame holding device is provided. The printing screen frame holding device has a tensioning operation portion and an elevating operation portion, which are operated successively at an interval of few seconds by means of control of a rate of supply of air pressure by an orifice, are mounted on a quadrangular frame-shaped frame holding means that includes a combination of multiple mounting frames and multiple corner pieces, without provision of any separate mechanism or an additional component.

Deflector units for use with a printing blade in printing a print medium through a printing screen, which are self-adjustable in a vertical direction for controlling production of rolls of print medium.

A conveyor system for a stencil printer includes a pair of rail members extending through a frame and configured to transport the substrate through the stencil printer. A lift tool assembly is configured to support the substrate at a transport height and a print height. The lift tool assembly includes a lifter portion configured to be engaged by a support of the lift table assembly. A foot of the lifter portion has at least two permanent magnets configured to secure the foot of the lifter portion to the support when engaging the support to the lifter portion, and at least one vacuum pocket formed in a bottom surface of the foot of the lifter portion. The vacuum pocket is configured to selectively secure the lifter portion in place on the support.

A conveyor system for a stencil printer includes a pair of rail members, with the pair of rail members extending through a frame and configured to transport the substrate through the stencil printer. The conveyor system further includes, for each rail member, a lift tool assembly coupled to the rail member. The lift tool assembly includes a lifter portion, a main plate secured to the lifter portion, and a clamping member coupled to the main plate. The clamping member is configured to move horizontally between a substrate engaged position and a substrate disengaged position. The lift tool assembly further includes a thin foil coupled to the main plate. The thin foil is configured to move vertically and horizontally, independent from the clamping member.

A screen printer comprising: a conveyance device configured to convey a board; a board holding device configured to position a conveyed board at a printing position; a stencil holding device configured to attach a stencil above the held board; a squeegee device configured to fill pattern holes of the stencil with solder paste; a board raising and lowering device configured to raise and lower the board positioned by the board holding device; and a control device configured to perform drive control of each the above devices, the control device including a standby printing processing section configured to raise the board from below with respect to the stencil such that the board contacts the stencil, stand by in a state with solder paste filled in the pattern holes, and lower the board to separate the board from the stencil in accordance with a board conveyance signal.

A horizontal rotary screen transfer printing device comprises: a frame, at least two sets of rotary screen transfer printing assemblies which are horizontally disposed on the frame, and a back-pressure roller. Each rotary screen transfer printing assembly comprises a rotary screen plate roller and a transfer roller arranged parallel to each other; the rotary screen plate roller transfers a pattern onto the transfer roller serving as a temporary transfer carrier; the transfer roller transfers the pattern onto a fabric passing between the back-pressure roller and the transfer roller in a horizontal direction.

A screen printing form (1, 1) for use in screen printing, in particular for producing a metallic contact structure of a photovoltaic solar cell, having a woven screen printing fabric (1b) with a plurality of elongate woven fabric elements, which are arranged in a first element direction and a second element direction perpendicular thereto, and a stencil (1c), arranged on the woven screen printing fabric (1b) that has at least one opening formed as straight channel with a channel width BK. The woven fabric elements have a spacing AF in the first element direction and a spacing which deviates by less than 5% from AF in the second element direction, and the woven fabric elements have a diameter DG in the first element direction and a diameter which deviates by less than 5% from DG in the second element direction. A screen printing device and screen printing form are also provided.

The present application provides an automatic solder paste addition apparatus and system for a solder paste printer, the apparatus comprising: a push rod, a pressure plate, a support plate, a movable plate and a working platform; the pressure plate moves up and down as the push rod moves up and down, the support plate is fixed in relation to movement of the push rod, an outer side of the movable plate is disposed on the support plate so as to be capable of sliding up and down, the pressure plate is disposed on an inner side of the movable plate so as to be capable of sliding up and down, and the working platform is fixed to the movable plate and used for bearing a solder paste tub, wherein a lower one-way locking mechanism is provided between the movable plate and the support plate, the lower one-way locking mechanism being configured to lock the movable plate when the movable plate is in the working position, so that the movable plate cannot move downward; and wherein an upper locking mechanism is provided between the movable plate and the pressure plate, the upper locking mechanism being configured so that the pressure plate can move relative to the movable plate when the movable plate is not moving, and can also move together with the movable plate when the movable plate is moving.

A powder film forming method includes the steps of: filling an opening with a powder, the opening being formed in a screen plate; and forming the powder film by generating an electric potential difference between the screen plate and a substrate so as to cause the powder, which is filling the opening, to move to the substrate.

A sports ball comprising a cover having an outer substrate surface is provided. The cover may include a plurality of panels, wherein each panel has a respective panel surface. The panel surfaces of the respective panels collectively comprise the outer substrate surface of the cover. A surface texture is disposed upon and additively applied to the outer substrate surface. The surface texture is disposed on the respective panel surfaces in customizable, panel-specific, predefined panel arrangements. The surface texture defines a surface profile that includes an alternating and repeating series of land areas and raised portions, wherein each raised portion is positioned between a plurality of land areas. The raised portions extend from the outer substrate surface and are formed from a dimensional ink, wherein each of the plurality of raised portions has a terminus spaced apart from the outer substrate by a height of greater than about 0.05 millimeters (mm).