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