What should you do when a new‑style fully automatic winding machine produces uneven winding, misaligned end faces, or deviation?
Time：
2026-04-01
What should you do when a new‑style fully automatic rewinder produces uneven winding, misaligned end faces, or material drift? First, identify which type of “misalignment” is occurring. Next, inspect the web‑guidance system—most issues stem from this. Then adjust the rewind tension; unstable tension will inevitably cause drift. Also check for mismatches between traction and rewind speeds, ensure guide rollers and idler frames are properly leveled, verify that the core holder is aligned and the reel is concentric, and confirm that the product itself has uniform thickness and consistent stiffness.
I. First, determine which type of “unevenness” it is.
Left-right deviation: The product oscillates from side to side, with a serrated end face.
End-face unevenness: one side is loose while the other is tight, resulting in a flared, trumpet-like shape.
Overall slant: The entire roll is tilted to one side.
II. The Most Common and Effective Troubleshooting Steps
1. First, examine the correction system (the vast majority of issues are addressed here).
Check whether the photoelectric/ultrasonic deviation correction is enabled and whether the sensitivity is appropriate.
Is the probe dirty, obstructed, or misaligned?
Whether the correction bracket is jammed and whether the cylinder/motor operates smoothly.
Make sure the product is positioned precisely within the probe’s sensing area—avoid excessive offset.
2. Adjust the take-up tension (unstable tension will inevitably cause deviation).
Fluctuating tension is the most likely cause of deviation.
For soft materials (such as adhesive strips and hoses), keep the tension as low as possible.
Enable constant tension control; do not manually set the tension.
3. Traction and winding speeds are not synchronized.
When the speed is too fast or too slow, the product will wobble from side to side.
Enable linked synchronization to match the extrusion, traction, and winding speeds.
Avoid abrupt acceleration and deceleration.
4. Guide rollers and wire guides are not level.
All guide rollers must be horizontal, parallel, and concentric.
If one roller is even slightly off‑center, the entire material strip will deviate.
A simple level adjustment will do the trick.
5. Improper core clamping and eccentricity of the reel holder
Are the paper core and shaft sleeve securely installed and properly centered?
Are the side baffles symmetrical?
Eccentricity in the coil material causes it to become increasingly skewed as it is wound.
6. The product itself has uneven thickness and inconsistent firmness.
Instability in the raw material or extrusion can cause material flow fluctuations.
Reduce the line speed appropriately, and resume normal winding once stability is restored.
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Shuangda
Hebei Shuangda Rubber Machinery Co., Ltd.
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