The electrical control system of the Shengma leather splitting machine utilizes a multi-faceted safety design, encompassing operations, equipment, environment, and data, ensuring stable operation and personnel safety. Its core design logic revolves around risk prediction, real-time monitoring, emergency response, and long-term maintenance, specifically embodied in the following aspects:
The electrical control system's operational safety protection prioritizes prevention, mitigating the risk of misoperation through physical isolation and program lockout. The equipment utilizes a three-level power-off verification mechanism, requiring a three-step process of power-off, electrical testing, and tagout before operation to ensure safety, avoiding live-line work. Critical operations such as emergency shutdowns and parameter modifications require dual authorization verification, requiring simultaneous confirmation via both the operator panel and the remote control terminal to prevent single-point errors from causing accidents. Furthermore, the system features a built-in operation log, which tracks the initiation time, execution personnel, and response status of all operational commands, providing data support for incident analysis.
The Shengma leather splitting machine's safety protection focuses on protecting core components from overload, short circuit, and abnormal operation. The main circuit is equipped with an intelligent circuit breaker that monitors current and voltage fluctuations in real time. When the load exceeds the rated value, it automatically cuts off the power supply to prevent motor burnout. The drive system utilizes a DC solenoid valve, which precisely controls actions such as opening and closing the feed port and locking the worktable, preventing component damage caused by mechanical jamming. To address band knife wear, the system integrates photoelectric automatic tracking and automatic feed functions. Using infrared beams, it monitors blade position in real time and automatically compensates for feed when wear exceeds a threshold, ensuring accurate splitting and extending tool life.
Environmental safety and protection address the unique characteristics of leather processing, focusing on dust, moisture, and electromagnetic interference. The electrical cabinet utilizes an IP65-rated enclosure to effectively block the intrusion of leather dust. The internal circuit layout adheres to the principle of "separation of strong and weak currents," with power and control circuits arranged in layers to minimize the impact of electromagnetic interference on signal transmission. For humid environments, the system is equipped with temperature and humidity sensors that automatically activate the heating module when the ambient humidity exceeds a safe range to prevent condensation from causing short circuits. Furthermore, all electrical components are constructed of corrosion-resistant materials to withstand the chemical agents that may be encountered during leather processing.
Data security is ensured through hardware redundancy and software encryption technology, ensuring system stability. The programmable controller (PC) utilizes a dual-CPU architecture, with real-time synchronization between the main and backup control units. If the main control unit fails, the backup unit can take over control within milliseconds, preventing equipment downtime. The storage system encrypts key parameters such as split thickness and feed rate to prevent unauthorized modification. The system also supports remote firmware upgrades, but upgrade packages must be verified with dual digital signatures to ensure the legitimacy and integrity of the software source.
The emergency response design emphasizes "rapid isolation and graded alarms." When the system detects a critical fault, such as a motor overheating or a broken belt blade, it immediately triggers an emergency shutdown sequence and provides an audible and visual alarm indicating the fault type and location. For non-critical faults, such as abnormal sensor signals, the system reduces the machine's operating speed and continuously monitors until the problem is resolved. Furthermore, the Shengma leather splitting machine is equipped with a manual emergency brake, allowing the operator to force a shutdown under any operating conditions with a physical button, ensuring personal safety.
Long-term maintenance is ensured through regular self-tests and predictive maintenance. The system automatically performs circuit integrity testing at daily startup, including insulation resistance testing and ground resistance verification, to ensure that electrical performance meets safety standards. At the same time, a predictive model is built based on equipment operating data. By analyzing parameters such as motor current fluctuations and blade wear rate, it provides early warning of potential faults and guides users in arranging maintenance plans.
