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Mechanical failures are a normal occurrence; most devices will inevitably develop some minor issues after long-term use. When faced with such problems, it’s easy to resolve them once the cause is identified. Taking the cardless rotary cutter as an example, I’ll discuss with you the common troubleshooting methods for it. I. The veneer produced by the rotary slicer curls or forms into rolls ； Cause of failure: 1: The knife gate is too narrow ； 2: The tool holder is too high. Solution: Loosen the slide block screws and adjustment screws at both ends of the machine, widen the knife gate by about 10 millimeters, lower the knife by two millimeters, and then tighten the screws at both ends. Also, when the wood is too dry, spray more water on it and wait for a while. When rotating again, the curling of the sheet metal can basically be eliminated. https://www.xuanqieji.com.cn/upfile/image/20200910/2020091008560577577.jpg II. The thickness of the veneers produced by rotary slicing is uneven and lacks any obvious pattern ； Cause of failure: 1: Damage to the distance encoder or electronic scale component ； 2: The speed encoder is damaged. Solution: 1: Set the fast-forward frequency to 2Hz and observe whether the diameter change of the log is continuous; if there are obvious pauses, replace the distance encoder. 2: Check whether the roller’s rotation speed matches the actual speed; if there is significant fluctuation in the measured value, replace the speed detection encoder. III. The thickness of the rotary-sliced veneer is uneven and shows a tendency to increase over time ； Cause of failure: 1: The wood is hard or contains many knots, resulting in insufficient low-frequency torque from the inverter ； 2. The grid voltage is low. Solution: 1: Adjust the frequency converter parameter F6.10 to 160, or adjust the front/back thickness compensation of the controller to an appropriate value. https://www.xuanqieji.com.cn/upfile/image/20200910/20200910085677967796.jpg IV. The thickness of the veneers produced by rotary slicing is uneven and exhibits obvious wavy patterns ； Cause of failure: 1: High cutting resistance in the rotary cutter; 2: Incorrect motor parameter input. Solutions: 1: When the machine is not under load, the output current of the inverter does not exceed 5A; if the output current is too high, it is necessary to adjust the slitting machine itself, such as by improving lubrication. 2: Enter the parameters listed on the motor’s nameplate correctly and then consult relevant documentation for further guidance. The above covers the common faults that occur in cardless rotary cutters and how to repair them. I hope the summary provided by the editor will be helpful to everyone. Those who are interested in knowing the advantages and disadvantages of rotary cutters with cards are invited to click and read the relevant articles. Reposted from Title: What are the common faults of cardless rotary cutters? How to repair it? Link: https://www.xuanqieji.com.cn/wkxqjjccxdgzynxrhwx/view-129.html