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introduction：Programmable controller(6)relay(330) Programmable controller replaces relay control technology In industrial automation，Programmable controller(PLC)Act as...
2016-02-17 Reading quantity 1662
introduction：Lets introduce the hardware structure of the programmable controller。 Power module someplcPower supply in，Be... with...CPUModules in one，Some are separate，Its main use is forPLCThe integrated circuit of each module provides working power。meanwhile，Some are also provided for input circuits24VOperating power supply。If the power supply is AC, it is usually220VACor110VAC，If DC...
2016-02-17 Reading quantity 1685
introduction： To ensure the normal operation of the system，Periodic pairPLCSystem inspection and maintenance is essential，You must also be familiar with general troubleshooting and troubleshooting methods。 one、Inspection and maintenance 1.Periodic inspection PLCIt is an industrial control equipment，although...
2016-02-16 Reading quantity 1648
introduction： Due to the existence of damping and friction in the motion pair，The above unloading impact process is gradually weakened，When the slider reaches the bottom dead center return，Has decayed to a more stable state，Until the slider returns to top dead center。When a buffer is used，Simulation results of dynamic process of punching machine。The calculation condition is：The linear stiffness of the buffer is2.96again1In order toN/m；Slide before bottom dead center4.5mmStart to contact the buffer。The calculation results prove that，Pawn block...
2016-02-16 Reading quantity 1564
introduction：The working principle and application of piezoelectric sensor The piezoelectric effect is the main working principle of piezoelectric sensor，Piezoelectric sensors cannot be used for static measurements，Because of the charge of an external force，It is only preserved if the loop has an infinite input impedance。This is not the case，Therefore, this determines that piezoelectric sensors can only measure dynamic stresses。 Piezoelectric sensors are mainly used in acceleration、In the measurement of pressure and force, etc。Piezoelectric accelerometer is a commonly used accelerometer。It has a simple structure、Small size、Light weight、Long service life...
2016-02-16 Reading quantity 1586
introduction： The forging process of bearing inner sleeve blank is：Bar heating→The press is upset→punching→Core stripping→Ring rolling machine rolling forming。After the blank is formed, it shall pass the sampling inspection and be transferred to the subsequent process，Otherwise, it is necessary to adjust the ring rolling machine and press mold，Until the blank accuracy requirements are met。 machine...
2016-02-15 Reading quantity 1661
introduction： 1 introduction Programmable controller is based on microprocessor technology，Integrated computer technology、Automation technology and communication technology of a new type of industrial control device。Its reliability is extremely high、Strong ability to withstand harsh environment、It is very convenient to use，And robotics、cad/camIt is called the three pillars of industrial production automation。It was last century60Developed in the era is known abroad as“...
2016-02-15 Reading quantity 1652
introduction：What does the article say about time relays What is the application of time relay Time relay(time relay) Refers to when the input signal is added or removed，The output part needs to be delayed or limited to the specified time before closing or disconnecting the relay of the controlled circuit。 it Fall into： 1）Electromagnetic time delay relay； 2）Electrodynamic time relay； 3）Thermal time delay relay； 4）Hybrid time delay relay； 5）Solid state time relay...
2016-02-15 Reading quantity 1684
introduction： For open presses that require overload protection，The number of trips is higher，So when overload，More should make the hydraulic pad quickly drain oil，This leads to the use of poppet valves that are often too slow to discharge oil；Open press slider size is small，Especially when the sliding block is equipped with a closed high mobility adjustment device，It is also required that the hydraulic overload protection device should have a smaller size；Open press with rigid clutch without compressed air。
2016-02-15 Reading quantity 1844
introduction：1 introduction A factoryA1024AOne-arm four-meter gantry planer，The electrical system is composed of two parts: main drag and control system。Electrical master drive system isJF-DDc speed control system，The electronic control part adopts relay logic control system。Because it has been in operation for more than 30 years，There is a serious aging phenomenon in the electrical system，Equipment accuracy reduction，Poor speed regulation，High failure rate and relay logic control system line...
2016-02-14 Reading quantity 1756
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