Maintenance And Repair Of Computerized Ironing Equipment

< p > computer controlled < a href= > //www.sjfzxm.com/news/ > ironing equipment < /a > mainly consists of three parts: mechanical pmission, electrical control and pneumatic control.

The mechanical pmission part is relatively simple, so long as the user can guarantee the good lubrication of the mechanical pmission parts, and repair and replace the worn parts in time, it can guarantee the normal operation of < a href= "//www.sjfzxm.com/news/index_c.asp" > Machinery < /a > parts.

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< p > electrical control part is mainly composed of PLC controller, touch screen, solenoid valve, various sensors, change-over switch, control cable and so on.

The PLC controller and touch screen are the core of the whole equipment. The failure rate is very low. At the same time, because of the application of PLC controller and touch screen, it makes the electrical fault diagnosis of the equipment easy and simple.

PLC controller can be roughly divided into three parts: control module, input module and output module. According to different control paths, there are several dozens of indicator lights on the outside of the input module and the output module, which correspond to the input signal and output signal one by one. We can roughly judge the fault range according to whether the indicator lights are lit or not.

For example, there is no follow-up action on the three position front piece rear ironing machine (commonly known as the "big turntable"). If the 14# indicator light is on or off when the input module is in the right position, it is possible to determine whether there is any fault between the position switch or the connecting line corresponding to the 14# indicator. If there is any fault, it is necessary to change the position trip switch or check the relevant lines.

Such accurate, rapid judgement and fault solution require the maintenance personnel to record the one-to-one correspondence between the input indicating lamp, the output indicator and the electrical components, and this correspondence will not be mentioned on most random data. This requires the maintenance personnel to check and record them one by one at normal times, that is, when the machine is in normal condition.

For example, when stepping on the left suction pedal switch, the left air suction solenoid valve acts, and the left mold starts to suck the air. At this point, you will find that the 06# input indicator lights up, and the 10# output indicator light will also light up. So we know that the left suction pedal switch corresponds to the 06# input indicator, and the left suction electromagnetic valve corresponds to the 10# output indicator. With the same method, we will get the one-to-one correspondence between all the input indicators, the output indicator and the electrical components, and make a good record, which is very helpful for the accurate judgement of the equipment fault.

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< p > touch screen provides not only intuitive machine state display and convenient programming mode, but also some a href= "//www.sjfzxm.com" > equipment < /a > with fault indication, maintenance hint and so on.

Under the manual mode, touch the key of the corresponding parts of each action. Under the touch screen, the corresponding maintenance element number will be displayed, which can also be checked for the purpose of maintenance.

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< p > solenoid valve is mainly composed of coil and valve body, usually remember the normal resistance of the coil, when the equipment fails, a comparison can lead to the correct judgement.

Because of the wide variety of sensors, we do not enumerate them here. As long as we observe and summarize more frequently, the accuracy of fault judgement will naturally increase.

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< p > pneumatic control parts are mainly composed of pneumatic and pneumatic driving elements (such as three position five ventilatory valves), pneumatic actuators (such as cylinders, etc.), pipes and so on.

First of all, high quality (pure) compressed air can prolong the life of pneumatic components and reduce the failure rate of equipment.

To get high quality (clean) compressed air, one must regularly inspect the air compressor to ensure that there is no oil leakage in the air compressor cylinder; two, add filter facilities to the main pipe (as shown below).

Second, periodic maintenance and cleaning of pneumatic drive components, whether the cleaning of pneumatic drive components directly affects the driving effect, and this kind of fault is difficult to judge.

For example, the author once repaired the "big turntable" ironing machine. The malfunction phenomenon is that when the mold is in the right working position, the upper right mold will decrease while the left upper die will also slow down (the normal left and right upper die is interlocked on the circuit, and can not be reduced at the same time). After several twists and turns, it is judged that the three position five ventilation valve is seriously polluted by oil, leading to its action, but it can not be completely in place due to the cause of oil pollution. After the three five ventilation control valves are cleaned, the malfunction can be solved.

Third, it is necessary to adjust the intake volume of the intake valve, and generally use an oil cup oil in about 1 months. Too fast waste will cause oil pollution. Too slow may cause the pneumatic actuator to be short of oil and accelerate its wear.

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