What kind of trouble has your injection molding machine had?

Injection Molding Machine failures are diverse and can be classified from different angles.

1. According to the state of failure, it can be divided into: (1) gradual failure. It is caused by the gradual deterioration of the initial performance of the injection molding machine, and most of the faults of the injection molding machine belong to this type of fault. This kind of failure is closely related to the wear, corrosion, fatigue and creep process of electronic control and hydraulic machinery components.

(2) Sudden failure. It is caused by a variety of adverse factors and accidental external influences, which exceeds the limit that the injection molding machine can withstand. For example: due to the barrel into the iron overload caused by screw break; Breakdown of the electronic board of the injection molding machine due to high voltage series entry. Such failures often occur suddenly and without any warning.

Sudden failures occur in the use of injection molding machines, often due to design, manufacturing, assembly and material defects, or operational errors, caused by illegal operations.

2. According to the nature of the fault, it can be divided into: (1) intermittent fault. The injection molding machine loses some of its functions in the short term, and can be restored with a little repair and debugging, without the need to replace parts.

(2) Permanent failure. Some parts of the injection molding machine are damaged and need to be replaced or repaired before they can be restored to use.
3. According to the degree of fault influence, it can be divided into: (1) complete failure. Resulting in a complete loss of function of the injection molding machine.
(2) Local failure. Resulting in the loss of certain functions of the injection molding machine.
4. According to the cause of failure, it can be divided into: (1) wear failure. Failure due to normal wear and tear of the injection molding machine.
(2) Misusability failure. Failure caused by operation error and improper maintenance. (3) Inherent weakness failure. Due to design problems, the injection molding machine has weak links and failures during normal use.
5. According to the risk of failure, can be divided into: (1) dangerous failure. For example, the safety protection system loses its protective effect due to failure when it needs to act, causing personal injury and injection molding machine failure; Hydraulic electronic control system failure caused by the failure.

(2) Security failures. For example, the safety protection system acts when no action is required; Injection molding machine can not start when the start of the fault.
6. According to the occurrence and development of injection molding machine failures, they can be divided into: (1) random failures. The timing of the failure is random.

(2) There are rule failures. The failure of the occurrence of a certain pattern.

Each fault has its main characteristics, that is, the so-called fault mode, or fault state. The fault state of various injection molding machines is quite complicated, but it can be summarized as follows: abnormal vibration, mechanical wear, input signal can not be accepted by computer, solenoid valve has no output signal, mechanical hydraulic components break, proportional linear misalignment, hydraulic pressure drop, hydraulic leakage, oil pump failure, hydraulic noise, circuit aging, abnormal sound, oil quality deterioration, power pressure drop, amplifier board no output, temperature out of control and others.