Knowledge
The in-line punching equipment for the car interior waistline cuts continuous coil material to a fixed length according to the vehicle model specification. The coil material is fed to the material inlet by the feeding mechanism, the straightening unit eliminates deformation, and the measuring wheel feeds back the displacement signal in real time; when the set value is reached, the punching mechanism performs the cut.
Solidot products used in this case study: XB6S-EC2002, XB6S-1616B
1. Production process overview
Production flow: coil material loading -> straightening -> length measurement -> punching -> unloading
[Coil material loading]
The feeding mechanism continuously conveys the raw material to the infeed station.
[Straightening]
The roller unit at the material inlet eliminates coil curvature to ensure flatness.
[length measurement]
The measuring wheel acquires the displacement signal in real time.
[Punching]
Once the length is reached, the punching mechanism performs the cut.
[Unloading]
The finished parts are moved out on the conveyor, and the system automatically records the data.
2. I/O module application mode
The system uses the EtherCAT bus protocol and a Keyence KV-X520 PLC as the control core, connecting a 16-channel digital input/16-channel digital output module XB6S-1616B via the coupler XB6S-EC2002.
The input channels of the XB6S-1616B acquire signals from proximity sensors, photoelectric sensors and the emergency stop button; the output channels output signals for solenoid valve control, the three-color indicator operational state, the buzzer and so on.
3. Optimization results
The customer's original I/O system relied on PLC expansion modules, which was costly and lacked flexibility in channel configuration. After adopting the Solidot remote I/O module XB6S series, hardware costs were reduced while communication speed and reliability were maintained.
4. Highly reliable remote I/O module XB6S series
The Solidot remote I/O module XB6S series supports a variety of bus protocols and offers function modules such as motion control and temperature acquisition. The products have passed strict EMC testing, feature high noise immunity and stay online reliably. They support diagnostics, alarms and exception logging, providing intelligent feedback and convenient operation.
