Fuji Corporation

Akira Furuichi

Atsushi Torii

Yusuke Tsuchiya

Tatsuya Takasu

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.

Screen printer

A screen printing machine configured to print solder onto a surface of a circuit board using a screen mask. The screen printing machine is provided with: a screen mask arranged at a top side of the circuit board; a box member arranged at an underside of the circuit board including a space that is closed by the circuit board; a negative pressure generator connected to the space of the box member and configured to create negative pressure inside the space; a sensor configured to detect a pressure inside the space; and a control device configured to control the negative pressure generator based on the pressure detected by the sensor.

Screen printing machine

In a suction nozzle, a tip portion of an air pipe includes an opening portion having an area larger than that of a flow path of the air pipe, and a slit which is formed on the tip portion of the air pipe is provided in a portion of a circumferential contact surface contacting the component. In the suction nozzle, since air supplied from the air pipe flows out through the slit, the suction state of the component is canceled from the position of the slit as a base point.

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Kariya, Japan

Akira Furuichi