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Common faults and inspection of rubber injection molding machines
1. **Hardware and Software Faults**:
- Hardware faults refer to abnormal operation or failure of electronic components, printed circuit boards, cables, or connectors that can be resolved by repairing or replacing the corresponding parts.
- Software faults, on the other hand, involve PLC control program failures. These require data input, modification, or even PLC control program reconstruction to rectify the issue. Severe faults may involve control system software being unable to reside in the PLC, requiring consultation with manufacturers or relevant service providers for resolution.
2. **Faults with Diagnostic Indications**:
- Most current rubber injection molding machine control systems come with self-diagnostic programs to monitor the hardware and software of the entire system. In case of a system malfunction, immediate alerts or brief messages will be displayed on the screen. Customers can refer to the operation manual to easily clear the fault. Faults without diagnostic indications may result from imperfect self-diagnostic programs, such as unclosed switches and loose connectors. Therefore, maintenance personnel need to conduct detailed analysis based on fault symptoms and results, and the ability to eliminate faults depends on the skills and knowledge of the maintenance personnel.
3. **Systematic and Random Faults**:
- Systematic faults occur under certain conditions, while random faults occur occasionally under the same conditions that could lead to systematic faults. Random faults are typically caused by drift or reduced reliability of electrical components, high internal temperatures of electrical equipment, etc. Repeating tests and comprehensive assessments may be helpful for such faults.
4. **Destructive and Non-Destructive Faults**:
- For destructive faults, repetitive maintenance is prohibited, and only reasonable testing and analysis based on the phenomenon are helpful. If damage is likely during this process, the workpiece can be dismantled for safety.
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