In the previous mold level control system, hydraulic servo control system is widly used for producing the large thrust needed by slide mechanism. The system requires special hydraulic source increasing cost and reducing reliability. The new system developed by our company adopts the new digital hydraulic cylinder to form a complete digital three slide mold level control system. In the system, no servo valves are required. Due to the high anti-contamination of the digital system, no special hydraulic sources are required.
Oil is supplied directly from the power station of the casting machine.
The complete digital control system can realize the open loop control without relying on the position sensor of the cylinder. Due to the high anti-interference of the digital signal, no temperature drift , no zero drift and no vibration, the commission is very easy and flexible. The precision of the system reaches to 1-2 mm. With our whirlpool sensor and others, the high quality mold level control system can be easily realized.