The weighing module demolding system is the organization and command part. Its functions include: operating the power equipment of the demolding machine - the hydraulic system; Demolding speed control On-site working pressure detection, display and overpressure alarm; Workshop surveillance Emergency stop, etc. It is mainly composed of a demolding machine (including lifting cylinder, cylinder seat, working platform, connecting column, base), weighing module monitoring system, hydraulic system, monitoring and control system, etc.

After curing, the engine is vertically fixed on the working platform surface of the demolding system by using a locking device. After manually removing the nut at the bottom of the core mold, the personnel evacuate the demolding site. Then, remote operation is carried out in the control room. Through the demolding system, the piston rod of the lifting cylinder rises, pushing the core mold of the engine upwards to achieve the pre-loosening effect of the core mold. Then, the core mold is manually removed. When the piston rod of the oil cylinder is lifted upwards, it has two strokes: fast movement and slow movement. During the process from the initial position of the piston rod being pushed out to the stroke close to the core mold, the piston rod rapidly approaches the core mold at a speed of 0.8m/min. The explosion-proof photoelectric sensor installed at the bottom of the platform detects the position of the piston rod in real time. When the piston rod approaches the core mold, The movement speed of the piston rod is reduced to 0.1m/min. The core mold fixture at the top of the piston rod slowly approaches and pushes the engine core mold, causing a small displacement between the core mold and the propellant at a lower speed, achieving the pre-loosening of the core mold.

The cylinder and the cylinder seat are connected by a guide pin, allowing the piston rod of the cylinder to move up and down only along the axial direction. A weighing module is installed at the bottom of the cylinder. When the piston rod of the cylinder rises and touches the core mold and pushes it, the weighing module transmits the pressure change signal generated by the reaction force of the cylinder to the PLC, achieving real-time monitoring of the working pressure value and setting overpressure alarm and emergency stop protection functions for the working pressure value.