What are the causes of paper staining on the slitter rewinder? The lifting mechanism of the rewinder should rise and fall steadily and rise and fall in parallel. The bottom knife roller and the upper knife axis should be parallel to the bottom roller, the distance to the bottom roller should be accurate, and the rotation should be flexible. After the slitter rewinder is installed and calibrated, check whether all the parts are intact, whether the connecting bolts are tightened reliably, and whether the movable parts are flexible, and then fill the lubrication parts with corresponding lubricating oil. Clean, clean, check and refuel. It can be turned on after confirming that it is correct.