Fault classification of injection molding machine

Fault classification of injection molding machine of Dongguan New Material Co., Ltd.

There are many kinds of faults in injection molding machine, which can be classified from different angles.

1., according to the state of failure, can be divided into:

(1) gradual fault. Because of the gradual deterioration of the initial performance of the injection molding machine, most of the faults of the injection molding machine belong to this kind of fault. Such failures are closely related to the wear, corrosion, fatigue and creep of electrical control and hydraulic mechanical parts.

(2) sudden fault. It is caused by various unfavorable factors and accidental external influences, which is beyond the limit that the injection molding machine can bear. For example: due to the material into the iron, the overload caused by the screw broken; because of high voltage string into the injection molding machine electronic board. Such failures often occur suddenly without any sign of advance.

Sudden failures occur frequently in the injection molding machine use stage, often due to design, manufacturing, assembly and material defects, or operation errors, illegal operations caused.

2., according to the nature of the fault can be divided into:

(1) intermittent faults. The injection machine will lose some of its functions in the short run and can be recovered with minor repairs and no replacement of the parts.

(2) permanent fault. Some parts of the injection molding machine have been damaged and need to be replaced or repaired before they can be used again.

3., according to the extent of the impact of the breakdown can be divided into:

(1) complete failure. Cause the injection machine to completely lose function.

(2) local fault. Causing some function loss of injection molding machine.

4., according to the cause of the breakdown can be divided into:

(1) wear fault. Failure due to normal wear of injection molding machine.

(2) the misuse of fault. A malfunction caused by improper operation or improper maintenance.

(3) inherent weakness fault. Because of the design problem, the injection molding machine appears the weak link, the breakdown which occurs in the normal use.

5., according to the risk of fault division, can be divided into:

(1) dangerous fault. For example, the safety protection system loses the protection function because of the malfunction when it needs to be operated, causes the personal injury and the injection molding machine breakdown, the malfunction caused by the hydraulic electric control system failure and so on.

(2) security failure. For example, the safety protection system does not require action; the injection machine does not start at the start of the fault.

6., according to the occurrence and development law of the injection molding machine fault, can be divided into;

(1) random failure. The time of the failure is random.

(2) regular faults. The occurrence of the fault has a certain law.

Each fault has its primary characteristics, that is, the so-called fault mode, or fault state. All kinds of injection molding machine fault state is quite complicated, but can be summed up the following several kinds: abnormal vibration and mechanical wear, the input signal can let the computer to accept, there is no output signal, solenoid valve, mechanical hydraulic components, linear disturbance, rupture, leakage, hydraulic pressure hydraulic pump fault, circuit noise, aging, abnormal sound, oil deterioration, pressure drop, power amplifier board without output, temperature control and other. The failure modes of different types of injection molding machines vary in proportion. There are many kinds of faults in injection molding machine, which can be classified from different angles.

1., according to the state of failure, can be divided into:

(1) gradual fault. Because of the gradual deterioration of the initial performance of the injection molding machine, most of the faults of the injection molding machine belong to this kind of fault. Such failures are closely related to the wear, corrosion, fatigue and creep of electrical control and hydraulic mechanical parts.

(2) sudden fault. It is caused by various unfavorable factors and accidental external influences, which is beyond the limit that the injection molding machine can bear. For example: due to the material into the iron, the overload caused by the screw broken; because of high voltage string into the injection molding machine electronic board. Such failures often occur suddenly without any sign of advance.

Sudden failures occur frequently in the injection molding machine use stage, often due to design, manufacturing, assembly and material defects, or operation errors, illegal operations caused.

2., according to the nature of the fault can be divided into:

(1) intermittent faults. The injection machine will lose some of its functions in the short run and can be recovered with minor repairs and no replacement of the parts.

(2) permanent fault. Some parts of the injection molding machine have been damaged and need to be replaced or repaired before they can be used again.

3., according to the extent of the impact of the breakdown can be divided into:

(1) complete failure. Cause the injection machine to completely lose function.

(2) local fault. Causing some function loss of injection molding machine.

4., according to the cause of the breakdown can be divided into:

(1) wear fault. Failure due to normal wear of injection molding machine.

(2) the misuse of fault. A malfunction caused by improper operation or improper maintenance.

(3) inherent weakness fault. Because of the design problem, the injection molding machine appears the weak link, the breakdown which occurs in the normal use.

5., according to the risk of fault division, can be divided into:

(1) dangerous fault. For example, the safety protection system loses the protection function because of the malfunction when it needs to be operated, causes the personal injury and the injection molding machine breakdown, the malfunction caused by the hydraulic electric control system failure and so on.

(2) security failure. For example, the safety protection system does not require action; the injection machine does not start at the start of the fault.

6., according to the occurrence and development law of the injection molding machine fault, can be divided into;

(1) random failure. The time of the failure is random.

(2) regular faults;