An ink printing mechanism

Abstract

The utility model discloses a printing device field's ink printing mechanism, including the ink fountain that sets gradually from below to above, ink roller, uniform ink roller and printing roller, and the ink fountain is equipped with the ink groove, and the mounting frame is equipped with the lifting assembly for adjusting the longitudinal height of printing roller, and the lifting assembly includes a group of lifting cylinder, lifting guide rail, lifting sliding block and lifting plate, and the ink fountain, ink roller, uniform ink roller and printing roller that set gradually from below to above are arranged, the ink roller and uniform ink roller are in contact with each other and make the even adhesion of ink on the uniform ink roller, and the mutual contact of printing roller and uniform ink roller transfers the ink to the paper, and the mode can effectively avoid the phenomenon that the ink is uneven in the printing process, and can adjust the spacing size between printing roller and uniform ink roller through the lifting assembly, and the mode can effectively improve the printing quality.

Description

Technical Field

[0001] This utility model relates to the field of printing equipment technology, specifically to an ink printing mechanism. Background Technology

[0002] Currently, various printing presses have appeared in various fields in related technologies, and the pigments used are also different. For example, ink printing presses use ink as pigment. Ink is a homogeneous mixture composed of substances such as colored bodies, binders, fillers, and additives. It can be printed and dried on the printed body. It is a colored paste-like adhesive with a certain degree of fluidity.

[0003] In existing ink printing machines, excess ink on the printing roller is usually scraped off by a doctor blade. However, this setup is prone to uneven ink application, resulting in poor printing quality and unsatisfactory performance. Utility Model Content

[0004] In order to overcome the shortcomings of existing technical solutions, this utility model provides an ink printing mechanism that can effectively solve the technical problem that in the process of using existing ink printing machines, excess ink on the printing roller is usually scraped off by a doctor blade. However, this setting is prone to uneven ink application, resulting in low printing quality.

[0005] The technical solution adopted by this utility model to solve its technical problem is: an ink printing mechanism, including a mounting frame, the mounting frame having at least two printing components arranged side by side and spaced apart, the printing components including an ink fountain, an inking roller, an ink-spreading roller and a printing roller arranged sequentially from bottom to top, the ink fountain having an ink trough, the inking roller being disposed inside the ink trough, the sidewall of the ink-spreading roller contacting but not connected to the sidewall of the inking roller, and the printing roller and the ink-spreading roller having a gap to form a paper feed trough;

[0006] The mounting frame is equipped with a lifting assembly for adjusting the longitudinal height of the printing roller. The lifting assembly includes a set of lifting cylinders, lifting guide rails, lifting sliders, and lifting plates. The printing roller is positioned between the lifting plates, and both ends of the printing roller are rotatably connected to the lifting plates. The mounting frame is also equipped with a set of fixing plates for mounting an ink-spreading roller. The ink-spreading roller is positioned between the fixing plates, and both ends of the ink-spreading roller are rotatably connected to the fixing plates.

[0007] Preferably, an ink curing assembly is provided between the two printing assemblies. The ink curing assembly includes an ink curing chamber, a drive cylinder located on the top of the ink curing chamber, and a UV lamp and lamp holder located inside the ink curing chamber. The telescopic shaft of the drive cylinder is driven and connected to the lamp holder, and the UV lamp is installed at the bottom of the lamp holder and fixedly connected thereto.

[0008] Preferably, the lifting slider is slidably engaged with the lifting guide rail, the lifting plate is connected to the lifting slider, and the telescopic shaft of the lifting cylinder is drivenly connected to the lifting plate.

[0009] Preferably, the mounting bracket is provided with multiple ink tank assemblies, each ink tank assembly including a first ink storage tank, a second ink storage tank, and a return ink tank. A first ink outlet pipe is provided between the first ink storage tank and the ink fountain, a second ink outlet pipe is provided between the second ink storage tank and the ink fountain, and a return ink pipe is provided between the return ink tank and the ink fountain.

[0010] Preferably, the mounting frame is provided with at least two transfer rollers, which are located on the front side of the printing assembly, and both ends of the transfer rollers are rotatably connected to the mounting frame.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] By setting up an ink fountain, inking roller, ink distribution roller, and printing roller arranged sequentially from bottom to top, the inking roller and ink distribution roller contact each other and evenly attach the ink to the ink distribution roller. The ink is then transferred to the paper through the contact parts between the printing roller and the ink distribution roller. This method can effectively avoid uneven ink application during the printing process, and the distance between the printing roller and the ink distribution roller can be adjusted by the lifting component, which can effectively improve the printing quality. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of an ink printing mechanism according to the present invention;

[0014] Figure 2 for Figure 1 Enlarged view of the structure of part A in the middle.

[0015] Numbering on the map:

[0016] 1-Printing component, 2-Ink curing box, 3-Transfer roller, 4-Printing roller, 5-First ink outlet tube, 6-Second ink reservoir, 7-First ink reservoir, 8-Ink return reservoir, 9-Ink fountain, 10-Energy distribution roller, 11-Inking roller, 12-Drive cylinder, 13-Lifting guide rail, 14-Lifting cylinder, 15-Lifting slider, 16-Lifting plate, 17-Fixed plate. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] like Figure 1-2 As shown, this utility model provides an ink printing mechanism, including a mounting frame. The mounting frame has at least two printing components 1 arranged side by side and spaced apart. The mounting frame has at least two transfer rollers 3. The transfer rollers 3 are located on the front side of the printing components 1, and both ends of the transfer rollers 3 are rotatably connected to the mounting frame. The printing components 1 include an ink fountain 9, an inking roller 11, an ink-spreading roller 10, and a printing roller 4 arranged sequentially from bottom to top. The ink fountain 9 has an ink trough. The inking roller 11 is located inside the ink trough. The sidewall of the ink-spreading roller 10 is in contact with but not connected to the sidewall of the inking roller 11. There is a gap between the printing roller 4 and the ink-spreading roller 10 to form a paper feed trough.

[0019] The mounting frame is equipped with a lifting assembly for adjusting the longitudinal height of the printing roller 4. The lifting assembly includes a set of lifting cylinders 14, lifting guide rails 13, lifting sliders 15, and lifting plates 16. The lifting sliders 15 are slidably engaged with the lifting guide rails 13, and the lifting plates 16 are connected to the lifting sliders 15. The telescopic shaft of the lifting cylinders 14 is drivenly connected to the lifting plates 16. The printing roller 4 is disposed between the set of lifting plates 16, and both ends of the printing roller 4 are rotatably connected to the lifting plates 16. The mounting frame is also equipped with a set of fixing plates 17 for mounting the ink-spreading roller 10. The ink-spreading roller 10 is disposed between the set of fixing plates 17, and both ends of the ink-spreading roller 10 are rotatably connected to the fixing plates 17.

[0020] An ink curing assembly is provided between the two printing components 1. The ink curing assembly includes an ink curing box 2, a drive cylinder 12 located on the top of the ink curing box 2, and a UV lamp and lamp holder located inside the ink curing box 2. The telescopic shaft of the drive cylinder 12 is driven and connected to the lamp holder. The UV lamp is installed at the bottom of the lamp holder and fixedly connected to it.

[0021] The mounting bracket is equipped with multiple ink tank assemblies, each including a first ink tank 7, a second ink tank 6, and a return ink tank 8. A first ink outlet pipe 5 is provided between the first ink tank 7 and the ink fountain 9. A second ink outlet pipe is provided between the second ink tank 6 and the ink fountain 9. A return ink pipe is provided between the return ink tank 8 and the ink fountain 9. The ink fountain 9 is equipped with a level sensor for detecting ink level and has a return ink hole. Level sensors are also installed inside the first and second ink tanks 7 and 6. When the ink level in the ink fountain 9 exceeds the return ink hole, ink flows back from the return ink pipe to the return ink tank 8. When the level sensor detects a lack of ink in the ink fountain 9, the first ink tank 7 delivers ink to the ink fountain 9 via an air pump and the first ink outlet pipe 5. When the ink level in the first ink tank 7 falls below a preset value, ink is replenished to the ink fountain 9 via the second ink tank 6, thus achieving ink replenishment without stopping the printing process. Since each printing component 1 prints only one color, color mixing will not occur in the return ink tank 8.

[0022] Compared with traditional technology, this method uses an ink fountain 9, an inking roller 11, an ink-spreading roller 10, and a printing roller 4 arranged sequentially from bottom to top. The inking roller 11 and the ink-spreading roller 10 are in contact with each other, and the ink is evenly applied to the ink-spreading roller 10. The ink is then transferred to the paper through the contact points between the printing roller 4 and the ink-spreading roller 10. This method can effectively avoid uneven ink application during the printing process and can adjust the distance between the printing roller 4 and the ink-spreading roller 10 through a lifting assembly, thus effectively improving printing quality.

[0023] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An ink printing mechanism, comprising a mounting frame, characterized in that, The mounting frame is provided with at least two printing components arranged side by side and spaced apart. The printing components include an ink fountain, an inking roller, an ink distribution roller and a printing roller arranged from bottom to top. The ink fountain is provided with an ink trough. The inking roller is located inside the ink trough. The side wall of the ink distribution roller is in contact with but not connected to the side wall of the inking roller. There is a gap between the printing roller and the ink distribution roller to form a paper feed trough. The mounting frame is equipped with a lifting assembly for adjusting the longitudinal height of the printing roller. The lifting assembly includes a set of lifting cylinders, lifting guide rails, lifting sliders, and lifting plates. The printing roller is positioned between the lifting plates, and both ends of the printing roller are rotatably connected to the lifting plates. The mounting frame is also equipped with a set of fixing plates for mounting an ink-spreading roller. The ink-spreading roller is positioned between the fixing plates, and both ends of the ink-spreading roller are rotatably connected to the fixing plates.

2. The ink printing mechanism according to claim 1, characterized in that, An ink curing assembly is provided between the two printing assemblies. The ink curing assembly includes an ink curing chamber, a drive cylinder located on the top of the ink curing chamber, and a UV lamp and lamp holder located inside the ink curing chamber. The telescopic shaft of the drive cylinder is driven and connected to the lamp holder. The UV lamp is installed at the bottom of the lamp holder and fixedly connected thereto.

3. The ink printing mechanism according to claim 1, characterized in that, The lifting slider slides in conjunction with the lifting guide rail, the lifting plate is connected to the lifting slider, and the telescopic shaft of the lifting cylinder is driven by the lifting plate.

4. The ink printing mechanism according to claim 1, characterized in that, The mounting bracket is equipped with multiple ink tank assemblies, each including a first ink tank, a second ink tank, and a return ink tank. A first ink outlet pipe is provided between the first ink tank and the ink fountain, a second ink outlet pipe is provided between the second ink tank and the ink fountain, and a return ink pipe is provided between the return ink tank and the ink fountain.

5. The ink printing mechanism according to claim 1, characterized in that, The mounting frame is equipped with at least two transfer rollers, which are located on the front side of the printing assembly, and both ends of the transfer rollers are rotatably connected to the mounting frame.

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