阅读说明：本技术 一种彩印机印辊加热装置 (Heating device for printing roller of color press ) 是由 黄翔 施健 于 2018-09-12 设计创作，主要内容包括：本发明公开了一种彩印机印辊加热装置,包括印辊的空心轴、管道,所述印辊的空心轴两端分别与A夹盘、B夹盘连接,所述管道一端从空心轴内腔插入印辊内腔,再从通过空心轴壁上的孔连通空心轴内腔,所述管道在印辊内腔的部分绕制为盘管；所述管道的另一端穿过A夹盘上的连接孔后连接热源,所述B夹盘上设有连通印辊内腔的回收孔。本发明通过管道将热能引入印辊内腔,对印辊进行预热、干燥,介质不直接接触印辊,避免印辊接触水分,不会缩短使用寿命。(The invention discloses a printing roller heating device of a color press, which comprises a hollow shaft of a printing roller and a pipeline, wherein two ends of the hollow shaft of the printing roller are respectively connected with a chuck A and a chuck B, one end of the pipeline is inserted into the inner cavity of the printing roller from the inner cavity of the hollow shaft and is communicated with the inner cavity of the hollow shaft through a hole on the wall of the hollow shaft, and the part of the pipeline in the inner cavity of the printing roller is wound into a coil pipe; the other end of the pipeline penetrates through the connecting hole in the chuck A and then is connected with a heat source, and the chuck B is provided with a recovery hole communicated with the inner cavity of the printing roller. The invention introduces heat energy into the inner cavity of the printing roller through the pipeline to preheat and dry the printing roller, and the medium does not directly contact the printing roller, thereby avoiding the contact of the printing roller with moisture and not shortening the service life.)

1. The utility model provides a colour press printing roller heating device, includes hollow shaft (6), pipeline (4) of printing roller (1), the hollow shaft both ends of printing roller (1) are connected with A (holding) chuck (2), B (holding) chuck (3) respectively, its characterized in that: one end of the pipeline (4) is inserted into the inner cavity of the printing roller (1) from the inner cavity of the hollow shaft (6), and then is communicated with the inner cavity of the hollow shaft (6) through a hole (7) in the wall of the hollow shaft (6), and the part of the pipeline (4) in the inner cavity of the printing roller (1) is wound into a coil pipe; the other end of the pipeline (4) passes through a connecting hole (9) in the chuck A (2) and then is connected with a heat source, and a recovery hole (8) communicated with the inner cavity of the printing roller (1) is formed in the chuck B (3).

2. The apparatus of claim 1, wherein: the pipeline (4) is connected with a heat source through a valve (5).

3. The apparatus of claim 1, wherein: and a sealing ring (10) is arranged between the pipeline (4) and the connecting hole (9).

Technical Field

The invention relates to the field of light industry printing machinery, in particular to a heating device of a printing roller of a color press.

Background

In the use process of the color press, the environmental temperature is too low in winter, so that the printing effect is poor, and the rejection rate is far higher than that in spring, summer and autumn. The heating device of the structure can oxidize the inner wall of the printing roller when the hot air has moisture, and the service life of the printing roller is shortened.

Disclosure of Invention

The invention aims to provide a heating device for a printing roller of a color press, which can solve the problem that the service life of the printing roller is shortened due to the fact that hot air is directly blown into the inner cavity of the printing roller in the prior art.

The invention is realized by the following technical scheme:

a color press printing roller heating device comprises a hollow shaft of a printing roller and a pipeline, wherein two ends of the hollow shaft of the printing roller are respectively connected with a chuck A and a chuck B, one end of the pipeline is inserted into the inner cavity of the printing roller from the inner cavity of the hollow shaft and is communicated with the inner cavity of the hollow shaft through a hole in the wall of the hollow shaft, and the part of the pipeline in the inner cavity of the printing roller is wound into a coil pipe; the other end of the pipeline penetrates through the connecting hole in the chuck A and then is connected with a heat source, and the chuck B is provided with a recovery hole communicated with the inner cavity of the printing roller.

In a further development of the invention, the line is connected to a heat source via a valve.

The invention has the further improvement scheme that a sealing ring is arranged between the pipeline and the connecting hole.

Compared with the prior art, the invention has the advantages that:

heat energy is introduced into the inner cavity of the printing roller through the pipeline, the printing roller is preheated and dried, the medium does not directly contact the printing roller, the printing roller is prevented from contacting moisture, and the service life is not shortened.

Drawings

FIG. 1 is a schematic view of the structure of the present invention.

Detailed Description

The heating device for the printing roller of the color printing machine shown in figure 1 comprises a hollow shaft 6 of the printing roller 1 and a pipeline 4, wherein two ends of the hollow shaft of the printing roller 1 are respectively connected with an A chuck plate 2 and a B chuck plate 3, one end of the pipeline 4 is inserted into the inner cavity of the printing roller 1 from the inner cavity of the hollow shaft 6 and then communicated with the inner cavity of the hollow shaft 6 through a hole 7 on the wall of the hollow shaft 6, and the part of the pipeline 4 in the inner cavity of the printing roller 1 is wound into a coil pipe; the other end of the pipeline 4 penetrates through a connecting hole 9 on the chuck A2 and then is connected with a heat source, such as an oven and a boiler, through a valve 5, and a sealing ring 10 is arranged between the pipeline 4 and the connecting hole 9; and the chuck B3 is provided with a recovery hole 8 communicated with the inner cavity of the printing roller 1, and the medium containing heat energy is recovered through the recovery hole 8.