Correct setting of MOOG controller core

The blow molding machine uses the MOOG wall thickness control system to ensure a more uniform and precise wall thickness. So, how do you properly set up your MOOG controller?

The core gap position sensor is used to detect the core position (that is, the piston position of the wall thickness hydraulic cylinder). The actual spatial position can correspond, that is, when the wall thickness hydraulic cylinder piston moves to the end of the hydraulic cylinder stroke, the core gap position sensor should also move to the end of the corresponding stroke, that is, the hydraulic cylinder stroke must be within the core gap position sensor detection stroke within the effective range.

If the installation is wrong, the core gap position sensor may not be able to correctly detect the piston position of the wall thickness hydraulic cylinder or cause damage to parts such as the core gap position sensor. The basic settings for the core gap position sensor include zero (ZERO) and span (SPAN). Zero point (ZERO) refers to the sensor voltage value when the wall thickness hydraulic cylinder is at the starting position of the stroke. Range (SPAN) usually refers to the sensor voltage value when the wall thickness hydraulic cylinder is at the stroke end position.

The basic setting of the core gap position sensor is crucial to the normal operation of the wall thickness control system. It is the basic data of the wall thickness control system. When setting, it is necessary to properly reduce the pressure of the oil source, and the sensor may need to be calibrated repeatedly during the setting process The corresponding relationship between the position of the oil cylinder piston and the die gap ensures accurate correspondence and prevents mechanical or electrical parts from being damaged due to accidental failures.

Under normal circumstances, when the hydraulic cylinder piston is at zero, the die gap cannot be 0, and a certain safety gap is required. In addition, a certain distance should be left between the sensor detection rod and the stroke end, so as to ensure that the system is in a safe state. If the die clearance is zero, the accidental failure of electrical parts may cause serious damage to mechanical parts such as die head, extruder screw barrel, gear box and so on. The die gap at zero point (ZERO) can be adjusted by the manual wall thickness adjustment mechanism to reach the gap required for production.

In addition, after setting the core gap position sensor, there is no need to make new settings when changing the die, unless the reference plane for sensor detection and installation changes. After this setting is completed, the basic setting of the wall thickness controller of the blow molding machine is over. Adjust the pressure of the servo hydraulic oil source to the normal working pressure, and the wall thickness control system can enter the working state.

The above is the correct setting method of the MOOG controller core.