Flat belt press roller with wide breadth

Abstract

The invention relates to a wide breadth flat belt compression roller, which comprises a core shaft and a sleeve pipe sleeved on the core shaft, wherein the sleeve pipe comprises a plurality of sections combined together, and the sections are connected with each other. The cross sections of the two ends of the shaft are round, and the cross sections of the rest parts are rectangular; one end of the sleeve pipe sleeved on the two ends of the core shaft is connected with the part with a round cross section of the core shaft through a bearing sleeve, while the other end is connected with the partwith the rectangular cross section of the core shaft through a supporting sleeve; the sleeve pipe sleeved in the middle of the core shaft is connected with the part with the rectangular cross sectionof the core shaft through the supporting sleeve, and the adjacent supporting sleeves are connected with each other through a positioning sleeve; and a sliding gap is formed between the core shaft andthe supporting sleeve. Because the sleeve pipe sleeved on the core shaft adopts a multi-section combined structure and a gap is formed between the supporting sleeve and the core shaft, the sleeve pipe can sag depending on the self weight and always press on a flat belt, and cannot generate bending as the prior integral sleeve pipe, and the normal running of the sleeve pipe is ensured, and the printing quality is also guaranteed.

Description

technical field [0001] The invention relates to a wide-format printing machine, in particular to a flat belt pressure roller on the wide-width printing machine. Background technique [0002] At present, most of the known wide-format flat belt pressure rollers are assembled from a mandrel, an integral sleeve sleeved on the mandrel, a rolling bearing and a positioning sleeve. Due to the use of integral casing, there is often a shortcoming in wide-format printing, that is, in the case of long distances, the casing often has a certain bending due to its own weight, which will cause the casing to bend. If the operation is not smooth, the flat belt cannot be compacted across the entire width, which directly affects the quality of printing. Contents of the invention [0003] The object of the present invention is to provide a new type of wide-format flat belt pressure roller to solve the problem that the existing pressure roller has poor printing quality due to the bending of th...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a new type of wide-format flat belt pressure roller to solve the problem that the existing pressure roller is not running smoothly due to the bending of the sleeve, resulting in poor printing quality.

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