Offset bar section reasons for and options- Benz Star C5 - China Launch X431 Scanner

In offset practice, "section bar" is really a frequent and challenging solve the issue of printing quality. "Bar section," associated with your production level printer inside Design Mechanical parts with material and processing technology, employees from the operation, selecting printed material, machinery equipment maintenance as well as other factors. In press have a very "section bars" is primarily caused by printer and inking the printing cylinder, water agencies received paper exercise or paper generated in the act of vibration, resulting in the relative position from the slip imprinted. Therefore, our existing level printing equipment and technology cannot get rid of the "bar section," generation, is able to be through improved technology and operational processes to minimize, mitigate "section bar" generation.

1, drum gear backlash is just too largerge

center distance adjustment resulting backlash is way too large.

Offset The roller gear which can be basically helical gears meshing, the exchange coefficient and the transmission gear, gear backlash less space, to reduce the transmission of impact and vibrations during printing to hold printing the smoothness and accuracy. Practical work, drum gear mesh backlash as the thickness of printing paper and transform different adjustments, the thicker the paper, the middle distance adjustment is widening, roller gear mesh surface exchange coefficient is fairly smaller, bigger backlash. Printing rollers speed distinction between the top of larger printing surface that is generated by the larger relative slip f, the harder obvious section bars.

Solution: to make certain proper printing pressure in the premise, the 3 rollers should minimize the middle distance between your appropriate compression gear backlash, slow up the "bar section" level.

gear backlash a result of depreciation too.

Operation after a period of training, as a result of load roller gear wear or groove to the existence of foreign body, ultimately causing excessive gear mesh backlash, not involute gear meshing type of uniform rolling by, or foreign body "Top Gear" makes gear vibrations occur during operation, in order that increased friction between roller, sliding, sliding the printing graphic perhaps the moment in this production with equal gear pitch ribbon, that's, Article gearshift. Solution: usually to strengthen the job of cleaning and maintenance machinery and equipment, neat and remove debris between gears, good lubrication; underneath the gear wear, re-adjust the guts distance calculation, the proper compression backlash, wear serious immediate replacement Gear.

2, bearing wear rollers bearing wear. Offset Machine using a extended period, especially not to ever go roll pillow rollers, the movement, large impact vibration, bearing deterioration more easily produced, making the gap between journal and bearing the rise of nested loose rollers together when Diao mouth pressure a result of the vibrations from occurring to generate the development of sliding friction "section bar." Particularly unusual loads or poor lubrication, the roller shaft and bushings and wear increased, most likely at the mouth with the Diao produce "section bar."

Solution: may be rubber liner inside mouth section of the cut Diao ladder so as to lessen the impact in the event the combined pressure of intensity, roller bearings badly worn bearings really should be updated soon enough.

ink ball bearing wear. Water, roller bearings, bearing housings, bearing lock pieces containing debris or wear also can result in water, a lot of it roller inside movement in the axial movement and runout resulting in "clause bars" in particular, channeling the sleeve or roller gear wear, the roller gear meshing vibration generated with the normal absorption of water channeling roll, ink absorption and transmission, triggering "section bar" appear.

3, ink roll wear

Roller used by a while, on account of clean dust, paper, hair, skin ink along with debris, or improper installation, pressure regulators, and also other factors uneven ink rollers are worn, uneven surface or a roller axis line not straight, serious roller 2 when fine or coarse the center of the deformation with the middle of coarse 2 fine. Offset press work will result in the beating of rollers, leading to increased friction caused by intermittent partial strip "section bar."

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