Air-to-water-cooled printing roller

Abstract

The invention discloses an air-to-water-cooled printing roller, and belongs to the field of printing rollers, the air-to-water-cooled printing roller is characterized in that a roller body is filled with air-to-water and a movable floating ball is arranged, on the one hand, in the rotary printing process of the roller body, the movable floating ball continuously repeats the process of being separated from the inner wall of the roller body and floating up from the air-to-water, and in the process, the heat absorbed by the surface of the movable floating ball due to contact with the inner wall of the roller body is transferred to the air-to-water, so that the heat on the inner wall which is not in contact with the water can be effectively transferred in the circulation process, and the heat dissipation efficiency is further remarkably improved; and on the other hand, as the printing time is prolonged and the air pressure in the roller body is gradually increased, an air bag ring continuously gets close to the inner wall of an outer view ball until the air bag ring is in extrusion contact with the outer view ball, a color change layer is stressed to change color, the surface of the outer view ball presents color points, and the color points are gradually fused to present a color surface along with continuous temperature rise, and according to the change of the color change layer, the effect of reminding workers can be achieved.

Description

technical field [0001] The invention relates to the field of printing rollers, and more specifically, relates to an air-to-water cooling printing roller. Background technique [0002] The printing roller is one of the accessories of the offset printing machine. [0003] When the printing equipment is printing, especially when printing continuously for a long time, the printing roller will generate a lot of heat due to continuous friction, so it needs to dissipate heat in time, otherwise it will not only easily cause the printed matter to be damaged due to overheating, but also easily cause the printing The rubber roller layer on the surface of the roller is easy to harden and age, resulting in a lower service life. Contents of the invention [0004] 1. technical problem to be solved [0005] Aiming at the problems existing in the prior art, the purpose of the present invention is to provide a printing roller with air-to-water cooling, which is filled with air-to-water a...

AI Technical Summary

Problems solved by technology

[0003] When the printing equipment is printing, especially when printing continuously for a long time, the printing roller will generate a lot of heat due to continuous friction, so it needs to dissipate heat in time, otherwise it will not only easily cause the printed matter to be damaged due to overheating, but also easily cause the printing The rubber roller layer on the surface of the roller is easy to harden and age, resulting in a lower service life

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