In the face of the huge demand for masks, INVT combined its own advantages, organized experts, and launched a new non-woven flat mask machine control system application plan. The plan includes a series of products such as controllers, inverters, touch screens, servo supports, etc., which can not only meet the application needs of customers, but also assist enterprises to greatly increase production capacity and alleviate the difficulty of finding masks to a certain extent.
The control system application plan launched by INVT mainly includes AX70 medium-sized PLC, HMI, DA200 servo system and GD350 inverter, which can meet the needs of users.
The raw materials are forced to drag the unwinding equipment, and the inverter completes a more constant tension feeding; The mask is shaped by a special mechanical mold, and the corresponding picture is printed with the ultrasonic mold; The earband welding station is divided into two stations on the left and right, and the earband is welded to the mask through multi-station cooperation such as controlling the earband opening/closing clamp, earband cutting, and channel lifting; The two ends are folded and shaped, and the horizontal axis extends the model out of the structure to divide the mask into two halves and fold them together; The welding station and the folding and shaping station need to adhere to the synchronous welding of the channel and the material, and the servo system uses the electronic cam chasing and shearing function to complete the reciprocating operation.
The PLC and servo drive complete multi-axis control through the EtherCAT communication bus, and communicate with the touch screen through Modbus TCP; It has the characteristics of reliable stability, fast speed and high compatibility; The main conveyor belt uses a frequency converter to adjust the motor to transport, the stepper motor to flip, and two axes need to follow the spindle back and forth in the welding and folding process, which needs to support more complex synchronization instructions. The transmission is precise, the control is stable, and the speed is adjustable. Simple adjustment equipment, easy to change materials, high stability, low fault rate.
Features of INVT's solution
Convenient wiring: This plan uses the EtherCAT bus plan, and the controller and servo are connected through the network cable, which saves a lot of wiring time and improves the production speed;
Simple troubleshooting: the bus method communicates to reflect the fault status of each axis, saving the difficulty and time of troubleshooting;
Improved accuracy: EtherCAT bus high response speed and synchronous control, improved cutting and welding lug positioning accuracy;
Improved production capacity: The servo has a higher response and running speed than the cylinder, which improves the production speed.
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