The straight-in wire drawing machine is one of the common metal wire processing equipment. The straight-in wire drawing machine can draw high, medium and low carbon steel wires, stainless steel wires, copper wires, alloy copper wires, aluminum alloy wires, etc. Processing, stretching step by step from a thick circular busbar into a wire rod with the required diameter.
>The torque should be large during startup and low-frequency operation, and the low-frequency operation speed should be stable
>When threading, the tension swing bar must be stable and the swing range should not be too large.
>Target tension response should be fast and stable
>The system has comprehensive functions, including arbitrary mold jumping, meter-counting shutdown, weight-metering shutdown, and grinding tool wear prediction, etc.
System advantages
1Adopt advanced VF low-frequency compensation control technology to ensure smooth low-frequency operation and startup
2 Built-in PID algorithm dedicated to wire drawing machines to achieve fast and stable tension swing bar during wire threading process
3. Open-loop vector torque accuracy reaches ±5%, ensuring constant tension during rewinding
4. The system has rich functions, including arbitrary mold jumping, meter-counting shutdown, weight-metering shutdown, wire feeding disorder protection, mold wear warning, etc.
Typical wiring diagram of inverter
The frequency converter is installed in the control cabinet, and the system reads the output frequency and AI2 tension feedback value of the frequency converter in real time through the 485 bus. The system does not need to configure analog input and output modules.
Excellent protective properties
The inverter has a protection level of up to IP54 and has excellent dust-proof capabilities, which can effectively prevent dust from entering and prevent water from splashing in, providing a solid guarantee for the stable operation of the equipment in various complex environments.
Efficient heat dissipation
The use of liquid cooling technology ensures that the drive has a longer service life, greatly improving the reliability and stability of the system.
Flexible communication and wiring functions
Through the EtherCAT bus, the frequency converter can not only realize the functions of remote IO and remote analog modules, but also provide users with convenient local wiring methods.
Precise tension control algorithm
Built-in dedicated wire drawing machine PID algorithm can quickly and stably reach the target tension
Real-time temperature monitoring function
The inverter comes with a PT100 temperature detector, which can monitor the motor temperature in real time.
Convenient installation and debugging
The system does not require a special electrical control cabinet, and the inverter and PLC can be installed on the back of the equipment. This design feature greatly simplifies the installation process of the equipment. After the equipment debugging is completed in the factory, there is no need to carry out complex electrical construction and debugging work on site, greatly shortening debugging time and saving labor costs.
Typical wiring diagram of inverter
The inverter is distributed and wall-mounted on the back of each machine, and the system does not have a separate electrical control cabinet. The frequency converter is connected to the system through the EtherCAT/PN bus. The frequency converter drives the motor and serves as a remote IO module for each head. X1 of the frequency converter is connected to the front link signal of the current head, and X2 is connected to the rear link of the current head. signal, X3 is connected to the on-point signal of the current head, X4 is connected to the anti-point signal of the current head, X5 is connected to the start signal of the current head, X6 is connected to the stop signal of the current head, and X7 is connected to The current head is the mold box mixing. AI1 is connected to the local motor PT100 temperature sensor, AI2 is connected to the local tension feedback signal, the EA and EC relay outputs are connected to brake control, and the RA and RC relay outputs are connected to mold box control.
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