Sheet of paper for the superiority of the offset printing machine structure, more and more become printing machinery major products, and to the requirements of the quality of the printing is upbeat. Domestic production business by original also offset the monochrome machine, double color machine production to four color machine, multiple color machine development. Sheet of paper of each color printing group mainly by the printing plate cylinder, rubber roller, pressure roller, transfer roller and other printing ink and accessories system composition. The main roller running accuracy directly affect the quality of printing, whether to will produce overprint, include uneven coloring, has a direct relationship. The domestic and foreign famous printing machine production business on the roller running accuracy demand more and more.
And the Lord of roller bearing support plays an important role, in order to improve the quality of printing machine and increase more added value, a lot of printing machine production cost of bearing vendor improve requirements.
Along with the development of the printing paper leaflet history, the main roller bearing also experienced a lot of change. From previous brass sliding bearing to roller bearings, from the needle bearing to roller bearing, from a single bearing to combination bearings, from two ring bearings to three-ring eccentric bearing. Roller bearing accuracy is higher and higher, more and more convenient installation, maintenance more and more simple.
1. Needle bearing
Needle bearing rigidity for its roller diameter small and than taper roller bearings better, and bearing company developed the double row displacement of needle bearing the rigid can and copper set of sliding bearing comparable. With the ordinary than needle bearing, used in printing machine roller supports the needle bearing the needle group than the ordinary high. Ordinary needle bearing the needle with 2 μ m group as a unit, and printing machine use of needle 1 μ m groups for the unit. So, by choosing appropriate needle group, can make the work of bearing clearance less than 1 μ m, such is the quality of high precision operation printing machine need. And printing machine use of needle group can than ordinary needle bearing the grouping of more groups, so with the requirements of the processing of the exterior nature can be reduced.
2. Roller bearings
Needle bearing use, still makes printing machine manufacturers vexed in need of high machining accuracy coat, and need to experience the rich installer searching for the right needle group. In order to solve this problem, bearing production business development out of the outer ring of the roller bearing support integrated flange. Roller bearing can through the preloaded reach good precision and rigidity. And still can use with the design of the inner circle to adjust work bearing clearance. This solution can realize the printing machine roller bearing zero clearance demand. And bring the outer flange for printing machine production business solved the problem of installation and lubrication. Man Roland, Heidelberg, Japan and especially the northerners and domestic model than widely used the bearings. The roller bearing support project has become in support of the roller printing machine mainstream scheme.
3. Integrated unit
And car industry and other industries, printing machine manufacturers are also need to be like a ball bearings precise product supplier offer more simple modular components in order to reduce the error of the factory assembly and the time, reduce re-work rate, so as to enhance the efficiency and reduce cost. In order to meet the demand, bearing production business mainly provides a higher precision roller support, installation, maintenance is more simple and easy roller support unit. Such as bearing company development tricyclic eccentric bearing unit. This bearing unit integrated bearing and eccentric set, not only has the support roller effect, can realize the roller clutch pressure and alignment of the function. Its advantage has been widely printing machine production business to accept.
Global group, man Roland models and Heidelberg of the new models, are in the printing plate cylinder or rubber roller bearing on using this unit. And in the old type modifications, this three-ring bearing support has become the first choice. And there is currently in performance, installation use, maintenance on the bearing unit than better plan. And the labyrinth seal and the use of cylindrical roller, make its can be carried out oil lubrication, can also be grease lubrication, and lifetime free maintenance. Excellent lubrication also make the bearing life in all kinds of plan in the longest. It makes printing machine manufacturers to the accuracy requirement of the from its own processing, installation of the line moved to the production of products such as bearings precise bearing production line. It also accords with modern intensive industry. Above is the support of all kinds of printing machine Lord roller solution. Printing machine because of its own accuracy, at the request of rotation and linear motion a support have high requirements. Above solutions can completely solve domestic printing machine production business development itself to have the characteristic of the products need.
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