An adjustable ink supply for an eight color printing press

Abstract

The utility model discloses an adjustable ink supply device of eight color printing machine, including base, the top fixed mounting of base is provided with ink duct, both sides of ink duct all are provided with side hole, be provided with power motor on ink duct, the output shaft of power motor is connected with the shaft through the shaft coupling, the other end of shaft passes through side hole and the outer surface fixed sleeve of shaft is provided with ink roller, the diameter size of shaft is compatible with the width size of side hole. According to one embodiment of the present disclosure, by setting the circular shaft, scraper and drive assembly, when using, the power motor drives the shaft to drive the ink roller to rotate, the excess ink on the surface of the ink roller is removed by the scraper, and the staff can drive the circular shaft and the scraper to rotate by the drive assembly according to the need of the impression, adjust the distance between the scraper and the ink roller to adjust the ink amount, which is convenient and fast, without manual rotation of the bolt, and can be dynamically adjusted during the printing process, thereby improving the printing efficiency.

Description

Technical Field

[0001] This utility model relates to the field of printing equipment technology, and more specifically, to an adjustable ink supply device for an eight-color printing press. Background Technology

[0002] An eight-color printing press, also known as a universal printer, is not limited by any materials. It is simple and convenient to operate, has low production costs, and high production efficiency. An eight-color printing press requires injecting different colors of ink into eight printing units. The printing press needs to use inks with good fluidity, so the ink supply device in the printing press needs to continuously coat the surface of the printing roller with ink through the ink coating roller. The ink will be transferred to the paper under the action of the printing roller, thus completing the printing.

[0003] However, existing technologies have some problems: When the ink supply device in the existing printing press supplies ink through the ink coating roller, the excess ink on the surface of the ink coating roller is removed by the doctor blade before printing to ensure printing quality. However, in actual use, the doctor blade is usually fixed with bolts. The operator needs to manually rotate the bolts to lift or lower the doctor blade and change the gap between the doctor blade and the ink coating roller to control the amount of ink. This method of adjustment is time-consuming and laborious, and cannot be dynamically adjusted during the printing process, which reduces printing efficiency. Therefore, we propose an adjustable ink supply device for an eight-color printing press. Utility Model Content

[0004] One objective of this invention is to provide a new technical solution for an adjustable ink supply device for an eight-color printing press.

[0005] According to a first aspect of this utility model, an adjustable ink supply device for an eight-color printing press is provided, including a base, an ink fountain fixedly installed on the top of the base, side holes on both sides of the ink fountain, a power motor installed on the ink fountain, the output shaft of the power motor connected to a rotating shaft via a coupling, the other end of the rotating shaft passing through the side holes and an ink coating roller fixedly sleeved on the outer surface of the rotating shaft, the diameter of the rotating shaft matching the width of the side holes, and horizontal plates located on both sides of the ink coating roller rotatably connected to the outer surface of the rotating shaft, a round shaft rotatably connected between the two horizontal plates, a doctor blade fixedly installed on the round shaft, and the round shaft and the horizontal plates connected via a drive assembly, the round shaft being able to drive the doctor blade to rotate via the drive assembly.

[0006] Optionally, the circular shaft has an arc-shaped hole, the drive assembly includes an electric actuator, the electric actuator is fixedly mounted on the horizontal plate, the telescopic end of the electric actuator is fixedly connected to a block, the block is fixedly connected to a slider, and the other end of the slider extends into the arc-shaped hole.

[0007] Optionally, a baffle is fixedly installed at the bottom of the scraper, and a guide groove is formed on the baffle.

[0008] Optionally, a rotating rod is rotatably connected to the ink fountain, and rotating plates are fixedly sleeved on both sides of the outer surface of the rotating rod. A through hole is opened on the rotating plate, and the inner wall of the through hole is movably connected to the outer surface of the rotating shaft.

[0009] Optionally, hydraulic cylinders are fixedly installed on both sides of the top of the base, and push-pull blocks are fixedly connected to the telescopic ends of the hydraulic cylinders. A connecting rod is hinged between the push-pull blocks and the rotating plate.

[0010] Optionally, a slide rail is fixedly installed on the ink fountain, a slide plate is slidably connected to the slide rail, and the power motor is fixedly installed on the slide plate.

[0011] Optionally, collars are fixedly fitted on both sides of the outer surface of the shaft, and the diameter of the collars is greater than the width of the side holes.

[0012] Optionally, a guide rod is fixedly installed on the ink fountain, and the cross plate is movably sleeved on the surface of the guide rod.

[0013] Optionally, the through hole is square, and the inner wall of the through hole is provided with a wear-resistant layer.

[0014] Optionally, the inner wall of the arc-shaped hole is slidably connected to the surface of the slider, and the inner wall of the arc-shaped hole is coated with a lubricating layer.

[0015] According to one embodiment of this disclosure, by setting up a round shaft, a doctor blade, and a drive assembly, during use, the power motor drives the rotating shaft to rotate the ink coating roller, and the doctor blade removes excess ink from the surface of the ink coating roller. In addition, the operator can adjust the ink volume by driving the round shaft and doctor blade to rotate through the drive assembly according to the printing needs, and adjusting the distance between the doctor blade and the ink coating roller. This is convenient and quick, does not require manual rotation of the bolts, and can be dynamically adjusted during the printing process, thereby improving printing efficiency.

[0016] Other features and advantages of the present invention will become clear from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. Attached Figure Description

[0017] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the present invention and, together with their description, serve to explain the principles of the present invention.

[0018] Figure 1 This is a schematic diagram of the overall structure of an adjustable ink supply device for an eight-color printing press in one embodiment.

[0019] Figure 2 This is a side view of an adjustable ink supply device for an eight-color printing press in one embodiment.

[0020] Figure 3This is a schematic diagram of the top structure of an adjustable ink supply device for an eight-color printing press in one embodiment.

[0021] Figure 4 This is a schematic diagram of the side of the doctor blade of an adjustable ink supply device for an eight-color printing press in one embodiment.

[0022] Figure 5 This is a schematic diagram of the bottom structure of the doctor blade of an adjustable ink supply device for an eight-color printing press in one embodiment.

[0023] Figure 6 for Figure 2 A magnified schematic diagram of the structure at point A in the middle.

[0024] The following are marked in the diagram: 1. Base; 2. Ink fountain; 3. Side hole; 4. Power motor; 5. Rotating shaft; 6. Ink coating roller; 7. Horizontal plate; 8. Round shaft; 9. Squeegee; 10. Arc-shaped hole; 11. Electric actuator; 12. Block; 13. Slider; 14. Baffle; 15. Guide groove; 16. Rotating rod; 17. Rotating plate; 18. Through hole; 19. Hydraulic cylinder; 20. Push-pull block; 21. Connecting rod; 22. Slide rail; 23. Slide plate; 24. Collar; 25. Guide rod. Detailed Implementation

[0025] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present invention.

[0026] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0027] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0028] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0029] like Figures 1-6As shown, an adjustable ink supply device for an eight-color printing press includes a base 1, an ink fountain 2 fixedly mounted on the top of the base 1, side holes 3 on both sides of the ink fountain 2, a power motor 4 mounted on the ink fountain 2, and a rotating shaft 5 connected to the output shaft of the power motor 4 via a coupling. The other end of the rotating shaft 5 passes through the side hole 3 and an ink coating roller 6 is fixedly sleeved on the outer surface of the rotating shaft 5. The diameter of the rotating shaft 5 is adapted to the width of the side hole 3. A horizontal plate 7 located on both sides of the ink coating roller 6 is rotatably connected to the outer surface of the rotating shaft 5. A round shaft 8 is rotatably connected between the two horizontal plates 7. A doctor blade 9 is fixedly mounted on the round shaft 8. The round shaft 8 and the horizontal plates 7 are also connected by a drive assembly. The round shaft 8 can drive the doctor blade 9 to rotate via the drive assembly.

[0030] The power motor 4 drives the rotating shaft 5 to rotate the ink coating roller 6, so that the ink coating roller 6 picks up the ink inside the ink fountain 2 and transfers it to the printing plate roller above it. The doctor blade 9 removes the excess ink from the surface of the ink coating roller 6. In addition, the operator can adjust the ink volume by driving the round shaft 8 and the doctor blade 9 to rotate according to the printing needs, and adjusting the distance between the doctor blade 9 and the ink coating roller 6. It is convenient, quick and can be dynamically adjusted during the printing process.

[0031] The above-mentioned adjustable ink supply device for an eight-color printing press has an arc-shaped hole 10 on the round shaft 8. The drive assembly includes an electric push rod 11, which is fixedly installed on the horizontal plate 7. A block 12 is fixedly connected to the telescopic end of the electric push rod 11. A slider 13 is fixedly connected to the block 12, and the other end of the slider 13 extends into the arc-shaped hole 10.

[0032] By activating the electric actuator 11, the operator can cause the block 12 to move the slider 13, which in turn causes the surface of the slider 13 to press against the inner wall of the arc-shaped hole 10. This, in turn, causes the round shaft 8 to rotate the doctor blade 9, thereby adjusting the distance between the doctor blade 9 and the ink roller 6 to adjust the amount of ink on the surface of the ink roller 6, thus facilitating the adjustment of the printing effect.

[0033] The above-mentioned adjustable ink supply device for an eight-color printing press has a baffle 14 fixedly installed at the bottom of the doctor blade 9, and a guide groove 15 is provided on the baffle 14.

[0034] The ink scraped off by the doctor blade 9 flows along the bottom surface of the doctor blade 9 and is blocked by the baffle 14. Then it flows back into the ink fountain 2 along the guide channel 15 to achieve ink recovery.

[0035] The above-mentioned adjustable ink supply device for an eight-color printing press has a rotating rod 16 rotatably connected to the ink fountain 2. Rotating plates 17 are fixedly sleeved on both sides of the outer surface of the rotating rod 16. Through holes 18 are opened on the rotating plates 17, and the inner wall of the through holes 18 is movably connected to the outer surface of the rotating shaft 5.

[0036] When the rotating rod 16 and the rotating plate 17 rotate, they can drive the rotating shaft 5 and the ink roller 6 to move up or down through the through hole 18. The rotating shaft 5 can move vertically up and down under the guidance of the side hole 3, thereby adjusting the pressure between the ink roller 6 and the printing plate roller above it, and further adjusting the printing effect as needed.

[0037] The aforementioned adjustable ink supply device for an eight-color printing press has hydraulic cylinders 19 fixedly installed on both sides of the top of the base 1. The telescopic ends of the hydraulic cylinders 19 are fixedly connected to push-pull blocks 20, and the push-pull blocks 20 are hinged to the rotating plate 17 by a connecting rod 21.

[0038] The two hydraulic cylinders 19 can be synchronized by a synchronizer. By starting the hydraulic cylinders 19, the push-pull block 20 drives the connecting rod 21 to move downward, thereby pulling the rotating plate 17 and the rotating rod 16 to rotate, which in turn allows the rotating shaft 5 and the ink coating roller 6 to move upward to adjust the pressure between the ink coating roller 6 and the printing plate roller above it.

[0039] The above-mentioned adjustable ink supply device for an eight-color printing press has a slide rail 22 fixedly installed on the ink fountain 2, a slide plate 23 slidably connected to the slide rail 22, and a power motor 4 fixedly installed on the slide plate 23.

[0040] The design of the slide rail 22 and the slide plate 23 allows the power motor 4 to drive the rotating shaft 5 and the ink roller 6 to rotate, while also moving upward or downward.

[0041] In the aforementioned adjustable ink supply device for an eight-color printing press, both sides of the outer surface of the rotating shaft 5 are fixedly fitted with collars 24, the diameter of which is greater than the width of the side hole 3.

[0042] The collar 24 is designed to limit the rotation shaft 5, preventing the lateral movement of the rotation shaft 5 and the ink roller 6 from affecting the printing process.

[0043] The aforementioned adjustable ink supply device for an eight-color printing press has a guide rod 25 fixedly installed on the ink fountain 2, and a horizontal plate 7 movably sleeved on the surface of the guide rod 25.

[0044] The design of the guide rod 25 allows the horizontal plate 7 to move upward or downward with the rotating shaft 5 without rotating with the shaft 5.

[0045] The aforementioned adjustable ink supply device for an eight-color printing press has a square through-hole 18, and the inner wall of the through-hole 18 is provided with a wear-resistant layer.

[0046] In the aforementioned adjustable ink supply device for an eight-color printing press, the inner wall of the arc-shaped hole 10 is slidably connected to the surface of the slider 13, and the inner wall of the arc-shaped hole 10 is coated with a lubricating layer.

[0047] By coating the inner wall of the arc-shaped hole 10 with a lubricating layer, the slider 13 can slide more smoothly inside the arc-shaped hole 10.

[0048] Working principle and usage process of this utility model:

[0049] During ink supply, the operator starts the power motor 4. The operation of the power motor 4 causes the rotating shaft 5 to drive the ink coating roller 6 to rotate, allowing the ink coating roller 6 to be coated with ink from the ink fountain 2 and transferred to the printing plate roller above it. The doctor blade 9 removes excess ink from the surface of the ink coating roller 6. According to the printing needs, the operator can start the electric push rod 11 to move the block 12 to move the slider 13. This causes the surface of the slider 13 to press against the inner wall of the arc-shaped hole 10, which in turn causes the round shaft 8 to drive the doctor blade 9 to rotate. This allows the operator to adjust the distance between the doctor blade 9 and the ink coating roller 6, scraping off more or less ink to adjust the amount of ink on the surface of the ink coating roller 6, thus facilitating the adjustment of the printing effect. The operator can also start the hydraulic cylinder 19 to move the push-pull block 20 to move the connecting rod 21 downward, which in turn pulls the rotating plate 17 and the rotating rod 16 to rotate. This causes the rotating shaft 5 and the ink coating roller 6 to move upward, adjusting the roller pressure between the ink coating roller 6 and the printing plate roller above it, thus further adjusting the printing effect as needed.

[0050] Although specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. An adjustable ink supply device for an eight-color printing press, comprising a base (1), wherein an ink fountain (2) is fixedly mounted on the top of the base (1), characterized in that: The ink fountain (2) has side holes (3) on both sides. A power motor (4) is installed on the ink fountain (2). The output shaft of the power motor (4) is connected to a rotating shaft (5) through a coupling. The other end of the rotating shaft (5) passes through the side hole (3) and an ink coating roller (6) is fixedly sleeved on the outer surface of the rotating shaft (5). The diameter of the rotating shaft (5) is adapted to the width of the side hole (3). The outer surface of the rotating shaft (5) is rotatably connected to horizontal plates (7) located on both sides of the ink coating roller (6). A round shaft (8) is rotatably connected between the two horizontal plates (7). A scraper (9) is fixedly installed on the round shaft (8). The round shaft (8) and the horizontal plates (7) are also connected through a drive assembly. The round shaft (8) can drive the scraper (9) to rotate through the drive assembly.

2. The adjustable ink supply device for an eight-color printing press according to claim 1, characterized in that: The circular shaft (8) has an arc-shaped hole (10). The drive assembly includes an electric push rod (11), which is fixedly installed on the horizontal plate (7). A block (12) is fixedly connected to the telescopic end of the electric push rod (11). A slider (13) is fixedly connected to the block (12), and the other end of the slider (13) extends into the arc-shaped hole (10).

3. The adjustable ink supply device for an eight-color printing press according to claim 1, characterized in that: A baffle (14) is fixedly installed at the bottom of the scraper (9), and a guide groove (15) is provided on the baffle (14).

4. The adjustable ink supply device for an eight-color printing press according to claim 1, characterized in that: A rotating rod (16) is rotatably connected to the ink fountain (2). A rotating plate (17) is fixedly sleeved on both sides of the outer surface of the rotating rod (16). A through hole (18) is opened on the rotating plate (17). The inner wall of the through hole (18) is movably connected to the outer surface of the rotating shaft (5).

5. The adjustable ink supply device for an eight-color printing press according to claim 1, characterized in that: Hydraulic cylinders (19) are fixedly installed on both sides of the top of the base (1). Push-pull blocks (20) are fixedly connected to the telescopic ends of the hydraulic cylinders (19). A connecting rod (21) is hinged between the push-pull blocks (20) and the rotating plate (17).

6. The adjustable ink supply device for an eight-color printing press according to claim 1, characterized in that: The ink fountain (2) is fixedly mounted with a slide rail (22), and a slide plate (23) is slidably connected to the slide rail (22). The power motor (4) is fixedly mounted on the slide plate (23).

7. The adjustable ink supply device for an eight-color printing press according to claim 1, characterized in that: Both sides of the outer surface of the rotating shaft (5) are fixedly fitted with collars (24), and the diameter of the collars (24) is greater than the width of the side hole (3).

8. The adjustable ink supply device for an eight-color printing press according to claim 1, characterized in that: A guide rod (25) is fixedly installed on the ink fountain (2), and the horizontal plate (7) is movably sleeved on the surface of the guide rod (25).

9. An adjustable ink supply device for an eight-color printing press according to claim 4, characterized in that: The through hole (18) is square, and the inner wall of the through hole (18) is provided with a wear-resistant layer.

10. An adjustable ink supply device for an eight-color printing press according to claim 2, characterized in that: The inner wall of the arc-shaped hole (10) is slidably connected to the surface of the slider (13), and the inner wall of the arc-shaped hole (10) is coated with a lubricating layer.

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