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US 9,908,320 B2Granted
Screen printer
AssigneeFuji Machine Mfg. Co., Ltd.
InventorTsuyoshi Mizukoshi
Life of this patent
Estimating the term…
Abstract
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.
Claims5
A screen printer comprising:
- a screen including multiple holes;
- a squeegee that slides on the screen so as to print printing material onto a target object through the holes of the screen;
- a fluid pressure cylinder that biases the squeegee in a direction either towards or away from the screen based on internal pressure of a cylinder housing;
- a pressure sensor that detects the internal pressure of the cylinder housing;
- and
- a control section that controls the internal pressure based on a response time, which is a time from starting control to change the internal pressure by supplying or removing a specified amount of fluid per unit of time with respect to the fluid pressure cylinder to a detection value of the pressure sensor reaching a target value.
3 more elements
Dependencies are inferred from the claim text.