A double acting cylinder is to extend when a pushbutton is operated. Upon release of the...

 

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A double acting cylinder is to extend when a pushbutton is operated. Upon release of the pushbutton the cylinder is to retract. The cylinder is of small bore (25mm diameter requiring a small flow rate to operate at the correct speed. Exercise 2: Indirect Control of a Double acting Cylinder Problem: A double acting cylinder is to extend when a pushbutton is operated. Upon release of the pushbutton the cylinder is to retract. The cylinder is 250mm diameter and consumes a large volume of air. Exercise 3: The logic AND function; the two pressure valve Problem: A transfer station removes a product from a conveyor belt. If the product is detected as present and if the operator presses the pushbutton, the pick-up cylinder 1.0 extends, The product is sensed by a 3/2 way roller lever valve. Upon the release of the pushbutton the cylinder 1.0 is to retract to the initial position. Exercise 4: The logic OR function; the shuttle valve Problem: A cylinder is used to transfer parts from a magazine, If either a pushbutton or a foot pedal is operated, then the cylinder is to extend. Once the cylinder is fully extended, it is to retract to the initial position. A 3/2 way roller lever valve is to be used to detect the full extension of the cylinder. Exercise 5: Memory Circuit and Speed Control of a Cylinder Problem: A double acting cylinder is to extend fully when a pushbutton is operated. The cylinder is not to retract until full extension is reached. Extension is confirmed by a roller lever valve. The cylinder is to continue forward even if the pushbutton is released before full extension is reached. The speed of the cylinder is to be adjustable in both directions of motion. Exercise 6: The Quick Exhaust Valve Problem: The operation of two identical pushbutton valves advances a forming tool on an edge-folding device. For rapid forward travel, the circuit utilises a quick exhaust valve. The forward movement folds the edge of a flat sheet. If either of the two pushbuttons are released, the double acting cylinder is to return slowly to the initial position. A double acting cylinder is to extend when a pushbutton is operated. Upon release of the pushbutton the cylinder is to retract. The cylinder is of small bore (25mm diameter requiring a small flow rate to operate at the correct speed. Exercise 2: Indirect Control of a Double acting Cylinder Problem: A double acting cylinder is to extend when a pushbutton is operated. Upon release of the pushbutton the cylinder is to retract. The cylinder is 250mm diameter and consumes a large volume of air. Exercise 3: The logic AND function; the two pressure valve Problem: A transfer station removes a product from a conveyor belt. If the product is detected as present and if the operator presses the pushbutton, the pick-up cylinder 1.0 extends, The product is sensed by a 3/2 way roller lever valve. Upon the release of the pushbutton the cylinder 1.0 is to retract to the initial position. Exercise 4: The logic OR function; the shuttle valve Problem: A cylinder is used to transfer parts from a magazine, If either a pushbutton or a foot pedal is operated, then the cylinder is to extend. Once the cylinder is fully extended, it is to retract to the initial position. A 3/2 way roller lever valve is to be used to detect the full extension of the cylinder. Exercise 5: Memory Circuit and Speed Control of a Cylinder Problem: A double acting cylinder is to extend fully when a pushbutton is operated. The cylinder is not to retract until full extension is reached. Extension is confirmed by a roller lever valve. The cylinder is to continue forward even if the pushbutton is released before full extension is reached. The speed of the cylinder is to be adjustable in both directions of motion. Exercise 6: The Quick Exhaust Valve Problem: The operation of two identical pushbutton valves advances a forming tool on an edge-folding device. For rapid forward travel, the circuit utilises a quick exhaust valve. The forward movement folds the edge of a flat sheet. If either of the two pushbuttons are released, the double acting cylinder is to return slowly to the initial position.

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Exercise 1 Problem A doubleacting cylinder is to extend when a pushbutton is operated Upon release of the pushbutton the cylinder is to retract The cylinder is of small bore 25mm diameter and requires ... View the full answer