| 摘要 |
A stencil printer includes a frame, a stencil coupled to the frame, and a print head coupled to the frame to deposit and print viscous material over the stencil. The stencil printer further includes a lift table assembly configured to support the substrate in a transport position and a print position, and a conveyor system. The conveyor system includes a pair of rail members coupled to the frame. The pair of rail members extends through the frame and is 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 is configured to cooperate with the lift table assembly and to engage and support the substrate at a transport height and a print height. |
| 主权项 |
1. A stencil printer for printing viscous material on a substrate, the stencil printer comprising:
a frame; a stencil coupled to the frame; a print head, coupled to the frame, to deposit and print viscous material over the stencil; a lift table assembly configured to support the substrate in a transport position and a print position; and a conveyor system including
a pair of rail members coupled to the frame, the pair of rail members extending through the frame and being configured to transport the substrate through the stencil printer, andfor each rail member, a lift tool assembly movable with respect to the rail member, the lift tool assembly being configured to cooperate with the lift table assembly and to engage and support the substrate at a transport height and a print height, the lift tool assembly including a lifter portion configured to be engaged by a support of the lift table assembly and a modular clamping subassembly coupled to the lifter portion, the modular clamping subassembly including a backplane mounted on a top of the lifter portion, the backplane having a linear bearing mounted on a back of the backplane to provide a degree of freedom for clamping. |
