Roller bearing fault damage the quality of printing

Roller bearing fault damage 2020 - the quality of printing 04 - 17 by analyzing printing press roller bearing fault happens, you can see, to prevent the printer roller bearing the loss of accuracy and first selected printer used lubricating oil, the kinds of and change in time; Next, want to keep printing machine tension system normal working condition, often maintain printer tension system, the stable output tension, to reduce the winding roller printing paper tape in the process of fracture. In addition, choose suitable raw materials also is one of the effective ways to reduce the press roller bearing failure. Before the printing press roller bearing fault, directly or indirectly will be reflected on the operation and the product, just did not cause our attention. Sometimes take more drum packing method, make the printing pressure, printing quality problems such as uneven ink is resolved, but it will therefore exists printer can't reproduce the problem of administrative levels of more than 80% of the site. Printer that we encountered IKO roller bearing fault there are two kinds roughly: one kind is the support leg fracture, inner ring and outer ring rail surface spalling and make the ball movement, causes the mechanical lock, this kind of fault obvious, must after repair, printing machine can run normally. In fact, this kind of failure before cause serious mechanical lock already exists in another type of failure: namely, brace, inner ring and outer ring of the track surface wear, this kind of failure performance is not obvious, the main influence printing quality and is often not easy to the attention of the people of the faults in the printing machine maintenance, since the printing machine can run normally. In the process of paper printing, when fracture and tape winding drum, makes the entangled parts of the stress increases suddenly, cause local damage, bearing lubrication failure, increases the bearing clearance of injury, caused by uneven surface pressure of printing. If the lubrication is failure state for a long time, the orbit of bearing inner ring and outer ring surface is due to long-term wear make serious bearing clearance increases, it usually show the printing pressure, printing quality ink unevenness, field such as hair, serious when make prints of less than 30% of the paste mesh network loss, more than 70% of the branch. Is more common offset press after using for a long time, especially no go rolling pillow cylinder, the motion impact vibration, bearing wear more easily, make between journal and bearing clearance increases the looseness and sheath, roll the pressure the mouth diao for Jane and shaking, and that it happened from sliding friction form 'bar'. Especially when the load is not normal or lubrication, the roller shaft and bushing wear, near the mouth diao is the most easily 'bar'. Secondly, water, ink roller bearings, bearing, bearing lock parts wear debris or hides inside can also lead to water, ink roller if there is any significant axial channeling in sport and radial runout to produce 'bar', especially channeling inking roller shaft sleeve or transmission gear wear and tear, the vibration impact of roller gear mesh roll normal water transmission, distributing and uniform, cause 'bar'. Thus, the importance of the stability of the bearing for printing, periodic maintenance need not stressed that the authenticity of a bearing is also must be strictly controlled, if a fake bearing the broken in the printing process, incalculable consequences!