Correct use of rubber rollers

The newly cast rubber roller should not be put into use immediately. Since the internal structure of the newly cast rubber roller is not stable enough, if it is put into use immediately, it is easy to reduce the service life. Therefore, the new rubber roller just out of the tube should be placed for a period of time, so that the rubber roller can maintain a relatively stable state after contacting the temperature and humidity of the external environment, which can increase the toughness of the colloid and improve the durability. Correct storage of idle rollers. After the cots to be used should be cleaned, wrap the colloid with plastic film and place it on the cots rack. Do not stack a few randomly or lean against the wall, so as to avoid unnecessary loss of the colloid. . During the transportation of waste rubber rollers to be processed and cast, do not throw them around or press heavily, and keep the roller cores from eccentricity and bending, so as to ensure the normal use of the roller cores.

The shaft head and bearing of the rubber roller should be well lubricated. We know that the accuracy of the roller head and bearing directly affects the effect of ink transfer and ink distribution. If the poor lubrication causes the roller head, bearing wear and clearance, it will inevitably lead to the disadvantage of uneven printing ink color. At the same time, it will also cause printing bar marks due to bad conditions such as jumping glue and slipping glue. Therefore, it is usually necessary to frequently add lubricating oil to the head and bearing of the rubber roller to prevent the normal use of the rubber roller from wear and tear of the machine parts and ensure the printing quality. In the offset printing process technology, the key is the control of the balance of the water and ink paths, and the balance of ink and water depends on the key components of the rubber roller and the ink roller, whose quality can directly affect the quality of the product. Gravure, letterpress, flexo even more so. General printing companies need to maintain equipment once a week, including the maintenance of printing rubber rollers. The maintenance methods are as follows: 1. After the production operation is completed every day, the rubber roller should be carefully cleaned and washed twice; 2. The designated chemical preparation, such as industrial alcohol, must be used to clean the printing rubber roller, and must not be corrosive. Solvent; 3. Take off the rubber roller during holidays to prevent deformation under pressure; 4. For the protection of the surface of the printing rubber roller, wrap it with newsprint and place it in a ventilated and dark place.