Adjustable printing roller structure

Abstract

The utility model discloses an adjustable printing roller structure, which relates to the technical field of printing, and comprises a table top, an adjusting device is arranged on the outer side of the table top, an ink scraping device is fixedly connected in the table top, the ink scraping device comprises first rotating shafts which are symmetrically distributed, chain wheels are fixedly connected to the end parts of the first rotating shafts, and the chain wheels are fixedly connected to the end parts of the first rotating shafts. A chain is connected between the chain wheels in a meshed mode, the output end of the first motor, one chain wheel and the outer surface of the first rotating shaft are fixedly sleeved with a printing ink roller, a second rotating shaft symmetrically penetrates through the table top, a rotary knob is fixedly connected to one end of the second rotating shaft, and a ratchet wheel is fixedly connected to the other end of the second rotating shaft. One side of the table top is rotationally connected with a pawl used in cooperation with the ratchet wheel, the outer surface of the second rotating shaft is fixedly connected with a scraping plate, redundant ink can be effectively scraped off, printing is prevented from being affected, and the printing pressure can be effectively adjusted.

Description

Technical Field

[0001] This utility model relates to the field of printing technology, specifically to an adjustable printing roller structure. Background Technology

[0002] Printing equipment is a general term for various machines and devices used to produce printed materials. During printing, ink is applied to the image and text areas, and the printing plate is brought into contact with the substrate by the printing mechanism to transfer the ink to the substrate, forming a printed product. It is widely used in the field of color printing, such as color brochures, posters, leaflets, and packaging decoration.

[0003] However, existing technologies still have many defects in some similar structures when used in practice. For example, excess ink will form an uneven ink layer on the surface of the printed matter, making the edges of patterns or text blurry. It is inconvenient to scrape off the excess ink, which will affect the printing, the clarity and readability of the printed matter. At the same time, uneven or unsuitable printing pressure will lead to uneven ink transfer, making it inconvenient to adjust the printing pressure and affecting the visual effect.

[0004] To address the aforementioned problems, the inventors proposed an adjustable printing roller structure. Utility Model Content

[0005] To address the problems of difficulty in scraping off excess ink affecting printing and difficulty in adjusting printing pressure, the purpose of this invention is to provide an adjustable printing roller structure.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: an adjustable printing roller structure, including a table, an adjustment device provided on the outer side of the table, an ink scraping device fixedly connected inside the table, the ink scraping device including a first rotating shaft symmetrically distributed, a sprocket fixedly connected to the end of the first rotating shaft, a chain meshing between the sprockets, a first motor fixedly connected to one side of the table, the output end of the first motor connected to one of the sprockets, an ink roller fixedly sleeved on the outer surface of the first rotating shaft, a second rotating shaft symmetrically passing through the table, and a scraper fixedly connected to the outer surface of the second rotating shaft.

[0007] As a preferred technical solution of this application, the adjusting device includes a bracket, with through slots on both sides of the bracket. A lead screw is rotatably connected between the inner walls of one of the through slots. A second motor is fixedly connected to the top surface of the bracket, and the output end of the second motor extends into the bracket and is fixedly connected to the lead screw. A guide rod is fixedly connected between the inner walls of the other through slot. A slider is slidably connected to the inner wall of the through slot. One slider is threadedly connected to the lead screw, and the other slider is movably connected to the guide rod. A third rotating shaft is fixedly connected between the sliders, and a compression roller is fixedly sleeved on the outer surface of the third rotating shaft.

[0008] With the above technical solution, when the printing pressure needs to be adjusted, the second motor is started, and its output end drives the lead screw to rotate. When the lead screw rotates, the slider that is threadedly connected to it will move along the axial direction of the lead screw in the through groove. The other slider is movably connected to the guide rod, which plays a guiding role and ensures that the two sliders move synchronously. The outer surface of the slider is in contact with the inner wall of the through groove to ensure the stability of the movement process. As the slider moves, the height of the extrusion roller will change, which can effectively adjust the printing pressure.

[0009] As a preferred technical solution of this application, one side of the scraper is in contact with the outer surface of the ink roller.

[0010] Using the above technical solution, the scraper removes excess ink.

[0011] As a preferred technical solution of this application, a knob is fixedly connected to one end of the second rotating shaft, a ratchet is fixedly connected to the other end of the second rotating shaft, and a pawl that cooperates with the ratchet is rotatably connected to one side of the table.

[0012] The above technical solution allows the angle of the scraper to be locked when the ratchet and pawl are engaged, preventing it from rotating during operation.

[0013] As a preferred technical solution of this application, the bracket is located on the outer side of the tabletop.

[0014] With the above technical solution, the bracket is located on the outside of the table, which allows the extrusion roller to better extrude the ink roller.

[0015] As a preferred technical solution of this application, the outer surface of the slider is in contact with the inner wall of the through groove.

[0016] With the above technical solution, the slider slides within the inner wall of the through groove.

[0017] As a preferred embodiment of this application, the extrusion roller is located directly above the ink rollers.

[0018] Through the above technical solution, the extrusion roller can better extrude the ink roller.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0020] 1. This utility model can provide ink for printing by rotating the ink roller. When the ratchet and pawl are engaged, the angle of the squeegee can be locked to prevent it from rotating during operation. Turning the knob can drive the second rotating shaft to rotate and change the angle of the squeegee, thereby effectively scraping off excess ink to avoid affecting the printing.

[0021] 2. In this invention, a slider threadedly connected to a lead screw will move along the axial direction of the lead screw within a through groove. Another slider is movably connected to a guide rod, which acts as a guide to ensure that the two sliders move synchronously. As the sliders move, the height of the extrusion roller will change, thereby achieving the purpose of effectively adjusting the printing pressure. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a front view of the structure of this utility model.

[0024] Figure 2 This is a side view of the structure of this utility model.

[0025] Figure 3 This is a schematic diagram of the adjustment device of this utility model.

[0026] Figure 4 This is a schematic diagram of the ink scraping device of this utility model.

[0027] Figure 5 This is a schematic diagram of the ink scraping device of this utility model.

[0028] In the diagram: 1. Tabletop; 2. Adjustment device; 3. Squeegee; 21. Support; 22. Through groove; 23. Lead screw; 24. Second motor; 25. Guide rod; 26. Slider; 27. Third shaft; 28. Extrusion roller; 30. First shaft; 32. Sprocket; 33. Chain; 34. First motor; 35. Ink roller; 36. Second shaft; 37. Knob; 38. Ratchet; 39. Pad; 310. Squeegee. Detailed Implementation

[0029] 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.

[0030] Example: Figure 1-5As shown, this utility model provides an adjustable printing roller structure, including a table 1, an adjustment device 2 on the outside of the table 1, and a scraper device 3 fixedly connected inside the table 1.

[0031] The ink scraping device 3 includes a first rotating shaft 30 symmetrically distributed, a sprocket 32 ​​fixedly connected to the end of the first rotating shaft 30, a chain 33 meshing between the sprockets 32, a first motor 34 fixedly connected to one side of the table 1, the output end of the first motor 34 connected to one of the sprockets 32, an ink roller 35 fixedly sleeved on the outer surface of the first rotating shaft 30, a second rotating shaft 36 symmetrically passing through the table 1, a knob 37 fixedly connected to one end of the second rotating shaft 36, a ratchet 38 fixedly connected to the other end of the second rotating shaft 36, a pawl 39 rotatably connected to one side of the table 1 for use with the ratchet 38, a scraper 310 fixedly connected to the outer surface of the second rotating shaft 36, one side of the scraper 310 being in contact with the outer surface of the ink roller 35.

[0032] When the ratchet 38 and pawl 39 are engaged, the angle of the scraper 310 can be locked to prevent it from rotating during operation. Turning the knob 37 can drive the second rotating shaft 36 to rotate, changing the angle of the scraper 310, which can effectively scrape off excess ink to avoid affecting printing.

[0033] The adjusting device 2 includes a bracket 21 located on the outer side of the table 1. Both sides of the bracket 21 have through slots 22. A lead screw 23 is rotatably connected between the inner walls of one of the through slots 22. A second motor 24 is fixedly connected to the top surface of the bracket 21. The output end of the second motor 24 extends into the bracket 21 and is fixedly connected to the lead screw 23. A guide rod 25 is fixedly connected between the inner walls of the other through slot 22. A slider 26 is slidably connected to the inner wall of the through slot 22. One slider 26 is threadedly connected to the lead screw 23, and the other slider 26 is movably connected to the guide rod 25. The outer surface of the slider 26 is in contact with the inner wall of the through slot 22. A third rotating shaft 27 is fixedly connected between the sliders 26. An extrusion roller 28 is fixedly sleeved on the outer surface of the third rotating shaft 27. The extrusion roller 28 is located directly above the ink rollers 35.

[0034] When the lead screw 23 rotates, the slider 26, which is threadedly connected to it, will move along the axial direction of the lead screw 23 within the through groove 22. As the slider 26 moves, the height of the extrusion roller 28 will change, which can effectively adjust the printing pressure.

[0035] The working principle of the adjustable printing roller structure in this embodiment is as follows: When the printing pressure needs to be adjusted, the second motor 24 is started, and its output end drives the lead screw 23 to rotate. When the lead screw 23 rotates, the slider 26 threadedly connected to it will move along the axial direction of the lead screw 23 in the through groove 22. The other slider 26 is movably connected to the guide rod 25. The guide rod 25 plays a guiding role to ensure that the two sliders 26 move synchronously. The outer surface of the slider 26 is in contact with the inner wall of the through groove 22 to ensure the stability of the movement process. As the slider 26 moves, the height of the extrusion roller 28 will change, thereby achieving the purpose of effectively adjusting the printing pressure.

[0036] When excess ink needs to be scraped off, the first motor 34 is started, and its output drives the sprocket 32 ​​connected to it to rotate. Since the sprockets 32 are connected by a chain 33, they will drive another sprocket 32 ​​and the first rotating shaft 30 fixedly connected to it to rotate synchronously. The ink roller 35 is fixedly sleeved on the outer surface of the first rotating shaft 30, thereby realizing the rotation of the ink roller 35 to provide ink for printing. When the ratchet 38 and the pawl 39 are engaged, the angle of the scraper 310 can be locked to prevent it from rotating during operation. Turning the knob 37 can drive the second rotating shaft 36 to rotate, changing the angle of the scraper 310, thereby achieving the purpose of effectively scraping off excess ink to avoid affecting printing.

[0037] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. An adjustable printing roller structure, including a table (1), characterized in that: An adjustment device (2) is provided on the outside of the table (1), and a scraper device (3) is fixedly connected inside the table (1). The ink scraping device (3) includes a first rotating shaft (30) symmetrically distributed, a sprocket (32) fixedly connected to the end of the first rotating shaft (30), a chain (33) meshing between the sprockets (32), a first motor (34) fixedly connected to one side of the table (1), the output end of the first motor (34) is connected to one of the sprockets (32), an ink roller (35) is fixedly sleeved on the outer surface of the first rotating shaft (30), a second rotating shaft (36) symmetrically penetrates the table (1), and a scraper (310) is fixedly connected to the outer surface of the second rotating shaft (36).

2. The adjustable printing roller structure as described in claim 1, characterized in that: The adjusting device (2) includes a bracket (21), and through slots (22) are provided on both sides of the bracket (21). A lead screw (23) is rotatably connected between the inner walls of one of the through slots (22). A second motor (24) is fixedly connected to the top surface of the bracket (21). The output end of the second motor (24) extends into the bracket (21) and is fixedly connected to the lead screw (23). A guide rod (25) is fixedly connected between the inner walls of the other through slot (22). A slider (26) is slidably connected to the inner wall of the through slot (22). One slider (26) is threadedly connected to the lead screw (23), and the other slider (26) is movably connected to the guide rod (25). A third rotating shaft (27) is fixedly connected between the sliders (26). A compression roller (28) is fixedly sleeved on the outer surface of the third rotating shaft (27).

3. The adjustable printing roller structure as described in claim 1, characterized in that: One side of the scraper (310) is in contact with the outer surface of the ink roller (35).

4. The adjustable printing roller structure as described in claim 1, characterized in that: A knob (37) is fixedly connected to one end of the second rotating shaft (36), and a ratchet (38) is fixedly connected to the other end of the second rotating shaft (36). A pawl (39) that works with the ratchet (38) is rotatably connected to one side of the table (1).

5. The adjustable printing roller structure as described in claim 2, characterized in that: The bracket (21) is located on the outside of the tabletop (1).

6. The adjustable printing roller structure as described in claim 2, characterized in that: The outer surface of the slider (26) is in contact with the inner wall of the through groove (22).

7. The adjustable printing roller structure as described in claim 2, characterized in that: The extrusion roller (28) is located directly above the ink rollers (35).

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