The automatic shrink packaging machine is a combination of pneumatic components and mechanical devices, and automatic packaging equipment controlled by PLC and other peripheral circuits. The actuator of the device is a cylinder. It is controlled by the two-position five-way solenoid valve to advance and retreat. The working position of the cylinder is detected by the magnetic switch and the proximity switch and fed back to the PLC. The PLC sends a control command to the solenoid valve of the corresponding cylinder through the program, thereby controlling the movement of the cylinder.
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