pneumatic technology12
DESCRIPTION
lklkTRANSCRIPT
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Pneumatic Technology Learning Outcome Application of Pneumatic Pneumatic Circuit
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Learning Outcome Describe pneumatic components.
Draw pneumatic supply system diagram.
Define the requirements of a pneumatic system.
Assembly equipment and operate the pneumatic system
Upon completion of this module, the student would be able to:
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PneumaticPNEUMATIC refers to Greek words :
pneuma ~ air actic ~ action, motion
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We use energy to move a LoadWHY PNEUMATIC?Demi angin yang menerbang dan menaburkan (debu, biji-bijian benih, dan lain-lainnya), dengan penerbangan dan penaburan yang sesungguh-sungguhnya, - surah AZ Zariat (51) , ayat 1
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This is actually what happen!!!Airload
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Definition of Pneumatic1.The science of mechanical properties of elastic fluids. e.g : oil,water,synthetic oil2. In industry , Pneumatic general refer to the used of compressed air
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Basic PneumaticA simplest Pneumatic System consists of:Air supply unit ~ air compressor, tank, pressure regulator, air dryer.Input signal ~ shut off valve, push button, limit switch Control valve ~ Or / And Gate, Directional control valve, flow control valve Actuator / working element ~ Single / double acting cylinders, rotary actuator, air motor
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Basic Pneumatic SystemCompressorElec MotorPress.SwitchPress.GaugeAuto DrainAir dryerLine FilterAir Service Unit
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Structure of Pneumatic ElementsDCVPneumatic Installation
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Structure of Schematic DiagramPneumatic CircuitOR VALVEAND VALVE
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1.Compressors.Screw typeVane typePiston type
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Air Service UnitSymbol
Type of FilterComp. air filterComp air regulator & gaugeComp. air regulator / lubricator
Lubricator
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These are the accessoriesSilencerManifoldsTubesFilterRegulatorGaugeLubricator
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2.Input Element
Input / SwitchingConsists of :
Push button (mushroom, flat, toggle)
Lever, roller, pedal
Air-Pilot
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3. Processing ElementGenerate or cancels signal depending on signal inputs received
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4. Control ElementDirectional Control Valve
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ContinueDirectional control valve 2w, 3w, 4w,5w
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ContinueThis 5/2 valve has a matched spool and sleeve. The fit is so precise that seals between them are unnecessary142351412
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ContinueThis 5/2 valve has a matched spool and sleeve. The fit is so precise that seals between them are unnecessary12453142351412
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Directional Control Valve5/2 way directional control valve to change and direct the air flow into double acting cylinder. piston will stop at the end of stroke.
5/3 way directional control valve to change and direct the air flow into double acting cylinder.can stop the piston motion at any position.
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Flow control ValveRestricts the air in a particular direction to reduce the flow rate
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5. Actuator ( output)Transfer the required quantity of air to drive the actuator
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ACTUATOR (working element)There are linear and rotary types actuator.Linear actuator consists of the pneumatic cylinder (single or double acting). Single acting cylinder ~ 1 port (extend) and spring (retract). Double acting cylinder ~ 2 ports (extend and retract)SACDAC
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Actuators..
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Pneumatic Technology Application Simple pneumatic based system drilling process
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Pneumatic Technology ApplicationRotary actuator ~ rotate the ketchup feeding machine. Linear actuators ~ turns down nozzles for injecting tomato ketchup into bottles Labeller ~ paste the label for each ketchup bottle. Ketchup feeding machineConcurrent activities , Increase Productivity !*$?
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Pneumatic Technology Application No human finger printHandling tool / gripper to handle sensitive partFor Computer and Electronic parts : Eliminate contaminant, dust, dirt Reduce dent, scratch, damage
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Pneumatic Technology Application Indirect human in the processPress Work MachineFor metal, high temperature part : Eliminate accident Improve work safety
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Pneumatic Technology ApplicationOthers application Material handling (moves load and work piece).
Jigs and Fixtures (clamping parts)
Manufacturing process (clamping dies, stamping work piece)
Inspection for quality control (moving a gauge or probe)
Assembly process (gripping, gluing, bending work piece)
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According to ISO 1219 pneumatic schematic circuitPBb+Input ElementsProcessing ElementActuating elementEnergy SupplyActual Movementb+
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Real application
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Direct Control of Pneumatic CyclinderStart Switch Actuator Device 3/2 way valvePush button Single acting cylinder with spring return
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Indirect Control of Pneumatic CylinderStart Switch Final control Element Actuator Device S1S2S1S2
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Simple Pneumatic Case Study 1~ Press Red Button 1 will extend both SAC to clamp the workpart (fast), while moving down the rotating drill (fast) into the workpart.~ Release Red Button 1 will retract both SAC to it original position
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Simple Pneumatic Case Study 1.1~ Press Red Button 1 will extend both DAC to clamp the workpart (fast), while moving down the rotating drill slowly into the workpart.~ Then, press Red Button 2 will retract both DAC to it original position
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Simple Pneumatic Case Study 2~ Press Red Button 1 and 2 together will extend both DAC to clamp the workpart slowly, while moving down the rotating drill slowly into the workpart.~ After completing the process, both DAC will retract automatically (slowly) to it original position.
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Simple Pneumatic Case Study 3~ Press Red Button 1 & 2 will extend DAC to move brown box to the DDZ location.~ The DAC will retract automatically.
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Simple Pneumatic Case Study 3.1~ Press Red Button 1 & 2 will extend DAC to move brown box to the DDZ location.~ Then, DAC will retract automatically and standby for moving the next brown box. ~ The extending and retracting speed of the DAC can be adjusted to suit with the speed of conveyor.~ The system can be stopped when Red button 1 or 2 is released.
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Combination ValvesCombination functions of various element. Example :Timer combination of one way flow control valve ,a reservoir and a 3/2 way directional control valve Symbol
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Example of TimerLs1Ls1Pb
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Example of Memory circuit Ls1Ls1Ls2Ls2Pb1Holding type switch
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Example of Timer and Memory circuitLs1Ls1Ls2Ls2Pb15/2 way DCVDouble Acting Cylinder (DAC)*** PB 1 need to hold Time delay valve3/2 way DCV nc
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Multiple Cylinder Case Study 1Displacement step diagram for A+ B+ A- B-
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Multiple Cylinder Case Study 2Displacement step diagram for B+ B- A+ A- Create a true diagram