Cushion circuit of air cylinder for moving high speed large inertia object

Abstract

Abstract PURPOSE:To prevent an air cylinder from rebounding, by forcibly introducing back pressure air to a head side cylinder chamber and rod side cylinder chamber of the air cylinder in the vicinity respectively of backward and forward ends, performing rapid deceleration then throttling a flow amount of air finally stopping the air cylinder. CONSTITUTION:When a piston rod 2 and load 3 are moved backward about to a backward end, a dog 6 actuates a backward moving position detector 8B, in this way, a backward moving back pressure solenoid valve 10A is operated to separate an air connection port 9A at the head side of an air cylinder 1 from a backward moving speed control circuit 11A and stop release of air in a head side cylinder chamber to the atmosphere, simultaneously the air connection port 9A at the head side is connected to a backward moving-back pressure-air feed circuit 15A, and back pressure air is introduced into the head side cylinder chamber from the head side air connection port 9A to perform rapid deceleration. Then air in the head side cylinder chamber is released through a variable throttle 14A2 to stop the load 3.

Inventors

• 👤 Hideo Bando
• 👤 坂東　日出雄
• 👤 Hideo Wakizaka
• 👤 脇坂　英雄
• 👤 Takashi Otani
• 👤 孝 大谷
• 👤 Mitsuaki Yamachika
• 👤 光昭 山近

Bibliographic Details