Ink scraping assembly for printing machine

Abstract

The ink scraping assembly for the printing machine comprises a machine frame, two sets of ink rollers are rotationally connected into the machine frame, the two sets of ink rollers are located on the same vertical horizontal plane, the outer wall of the machine frame is connected with a collecting box in a sliding mode, and a lead screw sleeve is connected with a scraper through a connecting mechanism. The scraper is slidably connected to the outer wall of the ink roller adjacent to the scraper, and the collecting box is located under the scraper. The scraper with the small size slides on the outer wall of the ink roller in a reciprocating mode, the problem that a traditional scraper with the large size is difficult to adapt to tiny irregularities or flaws on the surface of the ink roller is effectively solved, due to the fact that the contact area of the scraper is small, the scraper can be adjusted more flexibly and make close contact with the surface of the ink roller, and therefore pressure is evenly distributed. The cleaning effect is ensured to be more thorough, the phenomenon of incomplete cleaning caused by uneven pressure is avoided, the cleaning effect of the printing equipment is improved, and the stability and consistency of printing quality are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of ink scraping components, in particular to an ink scraping component for a printing machine. Background Art

[0002] The printing press can process paper in batches, greatly increasing the production speed. As one of the most important components of the printing press, the ink roller has a pattern on its surface. After rotating from the ink cartridge, the ink roller evenly carries the dye. After the scraper scrapes off the excess dye, it comes into contact with the paper and transfers the dye to the surface of the paper according to the pattern.

[0003] In the printing industry, keeping printing equipment clean and maintained is essential to ensure printing quality. Traditional scraper assemblies usually use scrapers of the same size as the ink roller. Although this design can cover the entire surface of the ink roller, it also has some significant defects. The contact area of ​​the large-sized scraper is large. When there are slight irregularities or flaws on the surface of the ink roller, the large-sized scraper is difficult to effectively adjust and adapt to these subtle changes, resulting in uneven pressure distribution of the scraper on the surface of the ink roller. Therefore, it is necessary to redesign a scraper assembly for a printing machine to address the above problems. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes an ink scraping assembly for a printing machine.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A scraper assembly for a printing press comprises a frame, wherein two groups of ink rollers are rotatably connected inside the frame, the two groups of ink rollers are located on the same vertical horizontal plane, the outer wall of the frame is slidably connected to a collecting box, the collecting box extends into the inside of the frame and contacts the inner wall of the frame, the inner wall of the frame is rotatably connected to a reciprocating screw, a screw sleeve is threadedly connected to the threaded section of the reciprocating screw, the screw sleeve is connected to a scraper through a connecting mechanism, the scraper is slidably connected to the outer wall of its adjacent ink roller, and the collecting box is located directly below the scraper.

[0007] Preferably, the connecting mechanism comprises a connecting block fixedly connected to the outer wall of the screw sleeve, the outer wall of the connecting block is fixedly connected to the connecting block, the outer wall of the connecting block is slidably connected to a sliding rod, and the end of the sliding rod is fixedly connected to the scraper.

[0008] Preferably, one end of the slide rod away from the scraper is fixedly connected to the limiting block, the outer wall of the slide rod is sleeved with a spring, one end of the spring is fixedly connected to the connecting block, and the other end of the spring is fixedly connected to the limiting block.

[0009] Preferably, the radius of the limit block is greater than the radius of the slide rod, and an ink pouring groove is provided on the outer wall of the scraper, and the ink pouring groove extends to both ends of the scraper.

[0010] Preferably, the inner wall of the frame is fixedly connected to a limit rod, and the lead screw sleeve is slidably connected to the outer wall of the limit rod.

[0011] Preferably, a filter plate is installed on the inner wall of the collection box, a handle is installed on the side wall of the collection box, and a sealing gasket is provided on the contact surface between the collection box and the frame.

[0012] Preferably, the outer wall of the frame is rotatably connected with a transmission wheel 1 and a transmission wheel 2, and the transmission wheel 1 is connected to the transmission wheel 2 through a transmission belt.

[0013] Preferably, the transmission wheel 1 is coaxially fixedly connected to the adjacent ink roller, and the transmission wheel 2 is coaxially fixedly connected to the reciprocating screw.

[0014] Preferably, the radius of the transmission wheel 1 is greater than the radius of the transmission wheel 2, and the axes of the transmission wheel 1 and the transmission wheel 2 are located on the same horizontal plane.

[0015] The utility model has the following beneficial effects:

[0016] 1. The utility model adopts a smaller scraper to slide back and forth on the outer wall of the ink roller, which effectively solves the problem that the traditional large-sized scraper is difficult to adapt to the tiny irregularities or defects on the surface of the ink roller. Since the scraper has a smaller contact area, it can be more flexibly adjusted and closely contact the surface of the ink roller, thereby evenly distributing the pressure, ensuring a more thorough cleaning effect, avoiding incomplete cleaning due to uneven pressure, improving the cleaning effect of the printing equipment, and helping to ensure the stability and consistency of printing quality.

[0017] 2. The utility model can effectively collect and filter the scraped ink through the collection box and filter plate, avoiding secondary pollution of the equipment caused by ink residue and accumulation. The overall design reduces the maintenance frequency and cost, extends the service life of the equipment, and improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural schematic diagram of an ink scraping assembly for a printing machine proposed by the utility model;

[0019] Figure 2 for Figure 1 Section view.

[0020] Figure 3 for Figure 2 Section view.

[0021] Figure 4 for Figure 3 Schematic diagram of the structure of the middle screw sleeve, scraper and other components.

[0022] In the figure: 1. frame; 2. collecting box; 3. filter plate; 4. driving wheel 1; 5. driving wheel 2; 6. driving belt; 7. ink roller; 8. reciprocating screw; 9. limiting rod; 10. screw sleeve; 11. connecting block; 12. sliding rod; 13. limiting block; 14. spring; 15. scraper; 16. ink guide groove. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] Reference Figure 1-4 , a scraper assembly for a printing press, comprising a frame 1, two groups of ink rollers 7 are rotatably connected inside the frame 1, the two groups of ink rollers 7 are located on the same vertical horizontal plane, the outer wall of the frame 1 is slidably connected to a collecting box 2, the collecting box 2 extends to the inside of the frame 1 and contacts the inner wall of the frame 1, the inner wall of the frame 1 is rotatably connected to a reciprocating screw 8, a screw sleeve 10 is threadedly connected to the threaded section of the reciprocating screw 8, the screw sleeve 10 is connected to a scraper 15 through a connecting mechanism, the scraper 15 is slidably connected to the outer wall of its adjacent ink roller 7, and the collecting box 2 is located directly below the scraper 15; the reciprocating screw 8 is used to drive the smaller scraper 15 to slide on the outer wall of the ink roller 7, and the ink on the outer wall of the ink roller 7 can be scraped off in coordination with the rotation of the ink roller 7, and the smaller scraper 15 can more flexibly adapt to the tiny irregularities or defects on the surface of the ink roller 7 due to its smaller contact area, and at the same time can more evenly distribute the pressure, reducing the phenomenon of incomplete cleaning caused by uneven pressure.

[0025] The connecting mechanism includes a connecting block 11 fixedly connected to the outer wall of the screw sleeve 10, the connecting block 11 is fixedly connected to the outer wall of the connecting block 11, the outer wall of the connecting block 11 is slidably connected to a slide rod 12, the end of the slide rod 12 is fixedly connected to a scraper 15, the end of the slide rod 12 away from the scraper 15 is fixedly connected to a limiting block 13, the outer wall of the slide rod 12 is sleeved with a spring 14, one end of the spring 14 is fixedly connected to the connecting block 11, and the other end of the spring 14 is fixedly connected to the limiting block 13; the set spring 14 can make the scraper 15 fit tightly against the outer wall of the ink roller 7 to ensure the effect of scraping off ink.

[0026] The radius of the limit block 13 is larger than the radius of the slide rod 12. An ink pouring groove 16 is provided on the outer wall of the scraper 15. The ink pouring groove 16 extends to both ends of the scraper 15. The inner wall of the frame 1 is fixedly connected to the limit rod 9. The screw sleeve 10 is slidably connected to the outer wall of the limit rod 9. A filter plate 3 is installed on the inner wall of the collection box 2. A handle is installed on the side wall of the collection box 2. A sealing gasket is provided on the contact surface between the collection box 2 and the frame 1; the filter plate 3 can filter the ink that falls into the collection box 2.

[0027] The outer wall of the frame 1 is rotatably connected with a transmission wheel 1 4 and a transmission wheel 2 5. The transmission wheel 1 4 is connected to the transmission wheel 2 5 through a transmission belt 6. The transmission wheel 1 4 is coaxially fixedly connected to the adjacent ink roller 7. The transmission wheel 2 5 is coaxially fixedly connected to the reciprocating screw 8. The radius of the transmission wheel 1 4 is larger than the radius of the transmission wheel 2 5. The axes of the transmission wheel 1 4 and the transmission wheel 2 5 are located on the same horizontal plane. It should be noted that the side wall of the frame 1 is provided with a driving source for driving the two groups of ink rollers 7 to rotate.

[0028] In the utility model, when the device is used specifically: the driving device on the side wall of the frame 1 is started, and the two groups of ink rollers 7 are driven to rotate, the transmission wheel 1 4 rotates with the ink rollers 7, and the transmission belt 6 drives the transmission wheel 2 5 to rotate synchronously, thereby driving the reciprocating screw 8 to rotate, so that it starts to reciprocate, and drives the screw sleeve 10 to reciprocate along the limit rod 9. Under the guidance of the limit rod 9, the screw sleeve 10 maintains a smooth sliding process.

[0029] The lead screw sleeve 10 drives the scraper 15 to slide back and forth on the outer wall of the ink roller 7. The pressure provided by the spring 14 ensures that the scraper 15 fits tightly against the outer wall of the ink roller 7. Even if there are slight irregularities or flaws on the surface, the scraper 15 can be flexibly adjusted and in close contact. The scraper 15 effectively scrapes off the ink on the outer wall of the ink roller 7 during its reciprocating sliding. The smaller size of the scraper 15 enables it to evenly distribute pressure, thereby avoiding incomplete cleaning due to uneven pressure.

[0030] The scraped ink slides along the ink pouring groove 16 on the scraper 15 and enters the collecting box 2 located just below the scraper 15. The filter plate 3 inside the collecting box 2 filters the ink to remove impurities to ensure the quality of the collected ink. The collecting box 2 is taken out regularly and easily moved out through the handle on the side wall to clean the ink and impurities inside the collecting box 2.

[0031] Through the above detailed working process, it can be ensured that the reciprocating sliding process of the smaller-sized scraper 15 on the outer wall of the ink roller 7 is smooth and effective, thereby improving the cleaning effect of the ink scraping component and ensuring the printing quality.

[0032] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.

Claims

1. An ink scraper assembly for a printing press, comprising a frame (1), characterized in that: Two groups of ink rollers (7) are rotatably connected inside the frame (1), and the two groups of ink rollers (7) are located on the same vertical horizontal plane. A collection box (2) is slidably connected to the outer wall of the frame (1), and the collection box (2) extends into the interior of the frame (1) and contacts the inner wall of the frame (1). A reciprocating screw (8) is rotatably connected to the inner wall of the frame (1), and a screw sleeve (10) is threadedly connected to the threaded section of the reciprocating screw (8). The screw sleeve (10) is connected to a scraper (15) through a connecting mechanism, and the scraper (15) is slidably connected to the outer wall of the adjacent ink roller (7). The collection box (2) is located directly below the scraper (15).

2. The ink scraping assembly for a printing press according to claim 1, characterized in that: The connection mechanism comprises a connection block (11) fixedly connected to the outer wall of the lead screw sleeve (10), the outer wall of the connection block (11) is fixedly connected to the connection block (11), the outer wall of the connection block (11) is slidably connected to a slide rod (12), and the end of the slide rod (12) is fixedly connected to the scraper (15).

3. The ink scraping assembly for a printing press according to claim 2, characterized in that: One end of the slide bar (12) away from the scraper (15) is fixedly connected to the limit block (13); the outer wall of the slide bar (12) is sleeved with a spring (14); one end of the spring (14) is fixedly connected to the connecting block (11); and the other end of the spring (14) is fixedly connected to the limit block (13).

4. The ink scraping assembly for a printing press according to claim 3, characterized in that: The radius of the limit block (13) is greater than the radius of the slide bar (12); an ink pouring groove (16) is provided on the outer wall of the scraper (15); and the ink pouring groove (16) extends to both ends of the scraper (15).

5. The ink scraping assembly for a printing press according to claim 4, characterized in that: The inner wall of the frame (1) is fixedly connected to a limit rod (9), and the lead screw sleeve (10) is slidably connected to the outer wall of the limit rod (9).

6. The ink scraping assembly for a printing press according to claim 5, characterized in that: A filter plate (3) is installed on the inner wall of the collection box (2), a handle is installed on the side wall of the collection box (2), and a sealing gasket is provided on the contact surface between the collection box (2) and the frame (1).

7. The ink scraping assembly for a printing press according to claim 6, characterized in that: The outer wall of the frame (1) is rotatably connected with a transmission wheel 1 (4) and a transmission wheel 2 (5); the transmission wheel 1 (4) is connected to the transmission wheel 2 (5) via a transmission belt (6).

8. The ink scraping assembly for a printing press according to claim 7, characterized in that: The transmission wheel 1 (4) is coaxially fixedly connected to the adjacent ink roller (7), and the transmission wheel 2 (5) is coaxially fixedly connected to the reciprocating screw (8).

9. The ink scraping assembly for a printing press according to claim 8, characterized in that: The radius of the transmission wheel 1 (4) is greater than the radius of the transmission wheel 2 (5), and the axes of the transmission wheel 1 (4) and the transmission wheel 2 (5) are located on the same horizontal plane.

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