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Printing machine roller

A technology for printing machines and printing rollers, applied in printing machines, rotary printing machines, printing, etc., can solve the problems of ink and dampening solution transfer performance deterioration, ink residue, printing difficulties, etc., to clean the surface of printing rollers, prevent Effects of glazing and improvement of printing performance

Pending Publication Date: 2022-03-25
张竟夫
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These residues accumulate for a long time, and under the action of printing pressure and heat, the surface of the printing roller will eventually be glazed. If the glaze cannot be processed in time, the glazed layer will become thicker and thicker, which will affect the transfer performance of ink and fountain solution. Deterioration, leading to printing difficulties, such as application number CN202010427402.5 discloses a printing machine roller, its disadvantage is that after the micropores are cleaned, some ink remains on the inner wall of the micropores, which will still cause glazing

Method used

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  • Printing machine roller
  • Printing machine roller
  • Printing machine roller

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0028] As a specific embodiment of the present invention, the main shaft 2 is connected to the rotating shaft 7 through gear meshing;

[0029] As the motor is energized, the main shaft 2 drives the printing roller 3 to rotate, and the main shaft 2 is connected to the rotating shaft 7 through gear meshing, so that the main shaft 2 can drive the rotating shaft to rotate at the same time, ensuring that the speed of the main shaft 2 and the rotating shaft 7 are consistent, so that the printing roller 3 and the cleaning roller 8 can cooperate with each other to achieve the purpose of cleaning the surface of the printing roller 2 and the residual ink in the micropore 31; at the same time, in order to ensure that the magnetic force generated by the electromagnetic rod 84 can have enough time to affect the metal piston 32, so the main shaft 2 And the rotating speed of rotating shaft 7 is 10-15r / min.

[0030] As a specific embodiment of the present invention, the printing roller 3 is p...

specific Embodiment approach

[0032] As a specific embodiment of the present invention, the metal piston 32 is in sliding and sealing connection with the inner wall of the micropore 31, and the top of the metal piston 32 is recessed inward to form a depression, and the high points on both sides of the depression of the metal piston 32 are separated from the micropore. At 2-3mm at the mouth of 31, the maximum distance between the metal piston 32 and the surface of the printing roller 3 is that the lowest point of the metal piston 32's concave surface exceeds the mouth of the micropore 31 by 1-2mm;

[0033] When the surface of the printing roller 3 dipped in ink rotates to a position away from the top working surface, after the dyeing process is finished, part of the residual ink remains in the micropore 31, and the metal piston 32 cooperates with the inner wall of the micropore 31 without clearance to ensure that the inside of the micropore 31 At the same time, the residual ink in the micropore 31 accumulate...

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Abstract

The invention belongs to the technical field of printers, and particularly relates to a printing machine roller which comprises a fixing frame, a main shaft, a printing roller body, a first connecting rod, a second connecting rod, a supporting rod, a rotating shaft, a cleaning roller body and a waste water tank, the printing roller body comprises a micropore, a metal piston, a spring and a spring hole, and the micropore is formed in the outer surface of the printing roller body; a metal piston is arranged in the micropore and is in sliding connection with the micropore, a spring is fixedly connected to the bottom of the metal piston, and the spring is located in the spring hole and is fixedly connected with the bottom of the spring hole; the cleaning roller comprises a roller body, a rotating shell, a rubber scraping plate and an electromagnetic rod, the outer surface of the roller body is sleeved with the rotating shell, the outer surface of the rotating shell is fixedly connected with the rubber scraping plate, the electromagnetic rod is arranged in the rubber scraping plate, and the top end of the rubber scraping plate makes contact with the surface of the printing roller; the cleaning of micropores and the surface of the printing roller can be realized, the printing roller is prevented from being glazed, and the printing performance is improved.

Description

technical field [0001] The invention belongs to the technical field of printers, in particular to a printing machine roller. Background technique [0002] The printing efficiency of the roller printing machine is high, and it is widely used. The existing roller printing machine first dips one side of the printing roller into the ink when printing, and the ink will adhere to the outer peripheral surface of the printing roller. Rotate to print ink onto paper or fabric; [0003] During the printing process of the existing printing roller, some residual ink accumulates on the surface of the printing roller, and part of the ink can be cleaned with water or solvent, but a small amount of ink remains on the bottom of the micropores on the surface of the printing roller and on the surface of the printing roller. These residues accumulate for a long time, and under the action of printing pressure and heat, the surface of the printing roller will eventually be glazed. If the glaze ca...

Claims

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Application Information

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IPC IPC(8): B41F13/10B41F13/22B41F35/02
CPCB41F13/10B41F35/02B41F13/22B41P2235/21
Inventor 张竟夫王永鑫
Owner 张竟夫
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