Ink transfer anti-splashing structure

Abstract

The anti-splashing structure comprises a rack and an ink basin arranged on the rack, an ink delivery roller partially immersed in ink is arranged in the ink basin, and a plate roller making contact with the ink delivery roller is arranged on the upper side of the ink delivery roller; an included angle alpha is formed between the vertical line L0 passing through the rotating center of the printing roller and the connecting line L1 between the rotating center of the printing roller and the rotating center of the drop roller, the alpha is an acute angle, and the direction of the linear speed V0 on the contact point of the printing roller and the drop roller is inclined downwards, so that the stress direction of printing ink when the two rollers are in contact is changed, and the printing ink cannot be splashed to the outside of a printing ink disc in the transfer process; the ink splashing direction is inclined downwards into the ink box, so that the problem of ink splashing can be effectively reduced or even avoided, the ink utilization efficiency is improved, the risk of environmental pollution is reduced, meanwhile, the efficiency of transferring the ink to the printing roller by the drop roller is also improved, a good operation state of printing equipment is favorably kept, and the printing efficiency is improved. Therefore, the overall printing quality and the production benefit are improved.

Description

Technical Field

[0001] The invention relates to the technical field of ink printing equipment, and in particular to an ink transfer anti-splashing structure. Background Art

[0002] In the printing industry, the ink transfer process is one of the key links to ensure high-quality printed products. The traditional ink transfer system usually includes an ink tray, in which the ink transfer roller is immersed in the ink and rotates to carry the ink, and then contacts the plate roller above to transfer the ink to the printing plate. However, in the prior art, when the central axis of the ink transfer roller and the plate roller is located on the same vertical axis (such as Figure 4 ), there will be a certain tangential speed difference at the contact point between the two, which will cause the ink to splash out along the tangential direction at the moment of contact.

[0003] This splashing phenomenon not only causes ink waste and increases production costs, but also pollutes the surrounding environment, affects the cleanliness of the workplace, and may pose a threat to the health of operators. In addition, the splashed ink may fall on other parts of the printing press, causing machine failure or requiring frequent cleaning and maintenance, which in turn affects the efficiency of the entire printing process. Summary of the invention

[0004] In view of this, an object of the present invention is to provide an ink transfer anti-splashing structure, aiming to avoid the problem of ink splashing and improve the ink utilization efficiency.

[0005] The technical solution adopted by the present invention to solve the technical problem is:

[0006] An ink transfer anti-splash structure comprises a frame, an ink basin arranged on the frame, an ink transfer roller partially immersed in ink is arranged in the ink basin, and a plate roller in contact with the ink transfer roller is arranged on the upper side of the ink transfer roller; it is characterized in that a vertical line L0 passing through the rotation center of the plate roller and a line L1 connecting the rotation center of the plate roller and the rotation center of the ink transfer roller, L0 and L1 form an angle α, α is an acute angle, and the linear velocity V0 direction at the contact point between the plate roller and the ink transfer roller is inclined downward.

[0007] Preferably, the 5°≤α<90°.

[0008] Preferably, a first ink-blocking baffle is provided on one side of the ink transfer roller, and a second ink-blocking baffle is formed on one side of the ink tray.

[0009] Preferably, the ink tray is provided with an ink port for replenishing ink, and the ink in the ink tray at least immerses 30% of the diameter of the ink transfer roller.

[0010] The ink transfer roller and the plate roller rotate in opposite directions but at the same speed.

[0011] Preferably, the plate roller is fixed on a frame, a bearing platform which can be raised and lowered is provided on the frame, and the ink tray is provided on the bearing platform.

[0012] The beneficial effects of the present invention are:

[0013] 1. By making the line L1 connecting the rotation center of the plate roller and the rotation center of the ink transfer roller and the perpendicular line L0 of the rotation center of the plate roller form an angle α, the direction of the force on the ink when the two rollers are in contact is changed, so that the ink no longer splashes to the outside of the ink tray in a horizontal direction during the transfer process, but the ink splashes in an inclined downward direction, that is, into the ink box. Therefore, this design can effectively reduce or even avoid the problem of ink splashing, improve the efficiency of ink utilization, reduce the risk of environmental pollution, and also help to maintain the good operation of the printing equipment, thereby improving the overall printing quality and production efficiency.

[0014] 2. Improve the efficiency of ink transfer from the ink transfer roller to the plate roller. Since the linear velocity direction at the contact point of the two rollers is inclined downward, it helps the ink to be transferred from the ink transfer roller to the surface of the plate roller more smoothly. Compared with the traditional design that disperses or splashes at the horizontal tangent at the moment of contact, the optimized transfer path ensures that the ink can be more evenly and continuously covered on the plate roller, enhancing the consistency and reliability of inking. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the appearance structure of the ink transfer structure;

[0016] Figure 2 It is a cross-sectional schematic diagram of the relative positions of the ink transfer roller and the plate roller of this design;

[0017] Figure 3 A schematic cross-sectional view of an ink delivery structure;

[0018] Figure 4 It is a cross-sectional schematic diagram of the relative positions of the ink transfer roller and the plate roller in a conventional design. DETAILED DESCRIPTION

[0019] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the present invention are further described below in conjunction with the accompanying drawings and through specific implementation methods. It is understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for the convenience of description, only the parts related to the present invention are shown in the accompanying drawings, not all.

[0020] Reference Figure 1-3The present invention proposes an ink transfer anti-splash structure, comprising a frame 1, an ink basin 2 arranged on the frame 1, an ink transfer roller 4 partially immersed in ink is arranged in the ink basin 2, a plate roller 3 in contact with the ink transfer roller 4 is arranged on the upper side of the ink transfer roller 4; a vertical line L0 passing through the rotation center of the plate roller 3, a line L1 connecting the rotation center of the plate roller 3 and the rotation center of the ink transfer roller 4, L0 and L1 form an angle α, α is an acute angle, and the linear velocity V0 direction at the contact point between the plate roller 3 and the ink transfer roller 4 is inclined downward.

[0021] Specifically, as an embodiment, refer to Figure 2 The linear velocity of the ink delivery roller 4 is V1, and the linear velocity of the plate roller 3 is V0. The ink delivery roller 4 is arranged on the lower left side of the plate roller 3 and contacts with the plate roller 3. A common tangent p is formed on the contact point. At this time, the V0 direction on the contact point is downward along the right side of the tangent p. At this time, the direction of the force applied to the ink during the transfer process is the same as the direction of the tangent, and part of the ink is also thrown out in the direction of V0. Since the V0 direction is inclined downward, the ink will not splash outside the ink box, but return to the ink box, thereby accurately controlling the ink transfer path, preventing unnecessary ink loss, and improving the utilization efficiency of the ink, which has a positive effect on saving resources and environmental protection.

[0022] Preferably, the 5°≤α<90°. In actual design, it can be flexibly designed according to the diameters of the ink transfer roller 4 and the plate roller 3, as well as the size of the ink tray.

[0023] Reference Figure 3 A first ink-blocking baffle 21 is provided on one side of the ink transfer roller 4, and a second ink-blocking baffle 22 is formed on one side of the ink tray 2. Specifically, the first ink-blocking baffle 21 is provided inside the ink tray 2, which can further prevent the ink from splashing onto the substrate or outside the ink tray 2 when the ink transfer roller 4 transfers the ink, and can also reduce the agitation or fluctuation of the ink in the ink tray 2; the second ink-blocking baffle 22 is a side wall of the ink tray 2, which can be appropriately increased to further prevent the ink from splashing onto the outside of the ink tray 2.

[0024] Reference Figure 2 The ink tray 2 is provided with an ink port 20 for replenishing ink, so as to replenish the consumed ink in time and ensure the quality of the subsequent printing process. Preferably, the ink in the ink tray 2 at least immerses 30% of the diameter of the ink transfer roller 4.

[0025] Reference Figure 1 The plate roller 3 is fixed on the frame 1, and the frame 1 is provided with a lifting and lowering carrying platform 5, and the ink tray 2 is arranged on the carrying platform 5. Furthermore, the carrying platform 5 can adjust the position of the ink tray 2 according to actual needs, which increases the adaptability and flexibility of the system to meet the requirements of printing tasks of different sizes and types; and also facilitates the maintenance, inspection and cleaning of the equipment.

[0026] In summary, the ink transfer anti-splash structure not only solves the ink splash problem existing in the prior art, but also improves the efficiency of the ink transfer roller in transferring ink to the plate roller, brings a number of substantial improvements, and significantly enhances the economic benefits, environmental protection and operational convenience in the printing process.

Claims

1. An ink transfer anti-splashing structure, comprising a frame (1), an ink basin (2) arranged on the frame (1), an ink transfer roller (4) partially immersed in ink arranged in the ink basin (2), and a plate roller (3) in contact with the ink transfer roller (4) arranged on the upper side of the ink transfer roller (4); characterized in that: A perpendicular line L0 to the rotation center of the plate roller (3) and a connecting line L1 between the rotation center of the plate roller (3) and the rotation center of the ink transfer roller (4) form an angle α with L0 and L1, and α is an acute angle. The linear velocity V0 at the contact point between the plate roller (3) and the ink transfer roller (4) is inclined downward.

2. The ink transfer anti-splashing structure according to claim 1, characterized in that: The 5°≤α<90°.

3. The ink transfer anti-splashing structure according to claim 1, characterized in that: A first ink-blocking baffle (21) is provided on one side of the ink transfer roller (4), and a second ink-blocking baffle (22) is formed on one side of the ink tray (2).

4. The ink transfer anti-splashing structure according to claim 1, characterized in that: The ink tray (2) is provided with an ink port (20) for replenishing ink, and the ink in the ink tray (2) at least submerges 30% of the diameter of the ink transfer roller (4).

5. The ink transfer anti-splashing structure according to claim 1, characterized in that: The ink transfer roller (4) and the plate roller (3) rotate in opposite directions but at the same speed.

6. The ink transfer anti-splashing structure according to claim 1, characterized in that: The plate roller (3) is fixed on a frame (1), a carrying platform (5) which can be lifted up and down is arranged on the frame (1), and the ink tray (2) is arranged on the carrying platform (5).

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