Pneumatic Technology Learning Outcome Application of Pneumatic Pneumatic Circuit
Dec 16, 2015
Pneumatic Technology Learning Outcome Application of Pneumatic Pneumatic Circuit
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:
PneumaticPNEUMATIC refers to Greek words :
pneuma ~ air actic ~ action, motion
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
This is actually what happen!!!Airload
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
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
Basic Pneumatic SystemCompressorElec MotorPress.SwitchPress.GaugeAuto DrainAir dryerLine FilterAir Service Unit
Structure of Pneumatic ElementsDCVPneumatic Installation
Structure of Schematic DiagramPneumatic CircuitOR VALVEAND VALVE
1.Compressors.Screw typeVane typePiston type
Air Service UnitSymbol
Type of FilterComp. air filterComp air regulator & gaugeComp. air regulator / lubricator
Lubricator
These are the accessoriesSilencerManifoldsTubesFilterRegulatorGaugeLubricator
2.Input Element
Input / SwitchingConsists of :
Push button (mushroom, flat, toggle)
Lever, roller, pedal
Air-Pilot
3. Processing ElementGenerate or cancels signal depending on signal inputs received
4. Control ElementDirectional Control Valve
ContinueDirectional control valve 2w, 3w, 4w,5w
ContinueThis 5/2 valve has a matched spool and sleeve. The fit is so precise that seals between them are unnecessary142351412
ContinueThis 5/2 valve has a matched spool and sleeve. The fit is so precise that seals between them are unnecessary12453142351412
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.
Flow control ValveRestricts the air in a particular direction to reduce the flow rate
5. Actuator ( output)Transfer the required quantity of air to drive the actuator
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
Actuators..
Pneumatic Technology Application Simple pneumatic based system drilling process
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 !*$?
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
Pneumatic Technology Application Indirect human in the processPress Work MachineFor metal, high temperature part : Eliminate accident Improve work safety
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)
According to ISO 1219 pneumatic schematic circuitPBb+Input ElementsProcessing ElementActuating elementEnergy SupplyActual Movementb+
Real application
Direct Control of Pneumatic CyclinderStart Switch Actuator Device 3/2 way valvePush button Single acting cylinder with spring return
Indirect Control of Pneumatic CylinderStart Switch Final control Element Actuator Device S1S2S1S2
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
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
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.
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.
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.
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
Example of TimerLs1Ls1Pb
Example of Memory circuit Ls1Ls1Ls2Ls2Pb1Holding type switch
Example of Timer and Memory circuitLs1Ls1Ls2Ls2Pb15/2 way DCVDouble Acting Cylinder (DAC)*** PB 1 need to hold Time delay valve3/2 way DCV nc
Multiple Cylinder Case Study 1Displacement step diagram for A+ B+ A- B-
Multiple Cylinder Case Study 2Displacement step diagram for B+ B- A+ A- Create a true diagram