张力控制方法、装置、设备及存储介质
By monitoring tension and obtaining feedforward values during the switching process between old and new wires in a silicon wafer slicing machine, and compensating for the speed loop control circuit of the wire winding drum motor, the problem of decreased product quality and yield caused by sudden changes in wire tension was solved, achieving stable tension control and improving production efficiency and product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHENZHEN INOVANCE TECH CO LTD
- Filing Date
- 2023-02-16
- Publication Date
- 2026-07-17
AI Technical Summary
During the switching process between old and new wires in a silicon wafer slicing machine, sudden changes in wire tension can cause changes in the position of the swing arm, leading to a decrease in product quality and yield. Existing PID control methods can easily cause the swing arm to oscillate and break the wire or for the cutting tension to deviate from the set value.
By monitoring tension during wire switching, a feedforward value is obtained and used to compensate the speed loop control circuit of the wire reel motor, maintaining the wire tension within a preset range. The feedforward value is used to adjust the motor speed to stabilize tension fluctuations.
It effectively reduces the amplitude and duration of wire tension fluctuations, avoids swing arm oscillations, improves product quality and yield, and reduces equipment failure rates.
Smart Images
Figure CN115947180B_ABST