Analysis Of Abnormal Operation Of Rewinding Machine

Rewinding machine is a kind of special equipment used for paper and film. Its purpose is to rewind the paper rolls (called original paper rolls) produced by the paper machine in sequence. At present, the use of AC drives instead of DC drives in rewinding machines has become a development trend in the paper machinery industry.

The paper roll wound by the paper roll machine is relatively soft, and may have breakage or broken ends inside, the edges on both sides are uneven, and the width of the paper web cannot be directly used in paper processing or printing machines. Most paper types (such as newsprint) , Letterpress printing paper, packaging paper, etc.) must pass through the edge of the rewinding machine, slitting, joints, rewinding on the core of the paper roll to form a finished paper roll of a certain specification and a certain degree of tightness before leaving the factory.


【Analysis of abnormal operation of rewinding machine】

1. The common abnormality of the rewinding machine is that the copying and the length of the core tube are correct. After the core tube is lowered to the front section of the track, the trolley does not push the core tube to the corresponding position of the rear section. The core tube is accumulated in the front section and the upper tube is automatically stopped. Abnormal reason: unknown (no abnormality in the instrument control inspection), solution: manually batch the tube in this batch, change the knife online, change the order of the reading, or change the width to ± 1-2mm (usually the latter is selected to facilitate the core tube Operator), and then reset, the next batch will be automatically managed.

Generally, it is only necessary to change the knife once online. This class has tried to change the knife online three times in a row at most. The last class is used normally. It is suspected that it may be a problem in the program.

2. Common anomalies of rewinding machine 2. The knife is changed correctly, the core tube has reached the ready position, and the sensor limit position also senses that there is a core tube, but it does not start automatic tube down. Solution: Reset, manual tube loading in this batch, online knife change, when the manual tube change is successful, check whether the limit near the tube pushing cart position is interfered by damaged paper, check OK, drive, reset after acceleration, automatic, It should be fine.

3. The operator took over the tube too fast, not paying attention, when there is a tube in the track, reset and clear the data, and automatically the next batch of core tubes, resulting in a protection alarm for the motor of the tube pushing trolley. Don't worry, after removing the paper, all the core tubes in the track are taken out, and the push tube trolley is manually driven to the initial position on the inner touch screen, and the abnormality is released.