A label printer ink spreader
By linking the ink guide arc plate with the ink scraper, the problem of ink turbulence is solved, achieving uniform ink distribution and improving printing quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YITING PRINTING & PACKAGING (SHANGHAI) CO LTD
- Filing Date
- 2025-09-25
- Publication Date
- 2026-07-21
AI Technical Summary
In existing technology, the ink scraped by the squeegee from the ink guide roller flows along the surface, resulting in an increase in ink volume at the ink edge and affecting printing quality.
The structure employs a linkage between the ink-guiding arc plate and the squeegee, which guides the ink to flow towards the edge of the roller surface through the inclined surface, ensuring that the ink is distributed along the preset path and preventing excess ink from entering the printing area.
It improves the quality of ink printing, prevents uneven ink distribution at the edges, and ensures uniformity of the printing effect.
Smart Images
Figure CN224528280U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of printing technology, and in particular to an ink distributor for a label printing machine. Background Technology
[0002] A label is a brief sign used to indicate the name, weight, volume, and purpose of an item. It is generally made of paper, plastic, or thin metal sheets. During label processing, the required graphics and text need to be printed on the label surface. With social development, the application range of labels is becoming increasingly wide. Chinese utility model patent, authorized announcement number "CN221437473U", discloses a uniform printing mechanism for paper labels. This utility model, by setting a scraping structure and adjusting the position of two scrapers with a lead screw, then uses the scrapers to scrape off excess ink from the arc surface of the first ink guide roller, thereby achieving the purpose of adjusting the printing range of the main printing roller and improving the practicality of the printing mechanism.
[0003] During the use of the above technical solution, when the squeegee scrapes the ink on the first ink guide roller, the ink scraped by the squeegee will flow along the surface of the ink guide roller, and the flow direction of the ink cannot be controlled. When the inner end of the squeegee scrapes the ink, the scraped ink may flow into the area that needs to be printed, which will increase the amount of ink at the edge of the printed ink. As a result, when it is squeezed with the second ink guide roller, the edge ink will be squeezed beyond the printing range, thus affecting the quality of ink printing. Therefore, we propose an ink distributor for label printing machines. Utility Model Content
[0004] The purpose of this invention is to at least solve one of the technical problems existing in the prior art, and to provide an ink distributor for a label printing machine. This distributor can solve the problem that when the squeegee scrapes ink from the first ink guide roller, the ink scraped by the squeegee flows along the surface of the ink guide roller, and when the inner end of the squeegee scrapes ink, the scraped ink may flow into the area to be printed, which increases the amount of ink at the edge of the printed ink. As a result, when the ink is squeezed against the second ink guide roller, the edge ink is squeezed beyond the printing range, thus affecting the quality of the ink printing.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an ink distributor for a label printing machine, comprising: The ink reservoir has a first ink guide roller and a second ink guide roller rotatably connected inside, with the outer surfaces of the first ink guide roller and the second ink guide roller in contact. The ink uniform structure is located on the ink reservoir. The ink uniform structure includes two stepper motors, two bidirectional threaded rods, and two ink-guiding arc plates. The two bidirectional threaded rods are rotatably connected inside the ink storage box. The two stepper motors are fixedly installed on one side of the ink storage box. The output ends of the two stepper motors rotatably extend into the interior of the ink storage box and are fixedly connected to the corresponding bidirectional threaded rods. Two sleeves are threaded onto the outer surface of each of the two bidirectional threaded rods. Connecting plates are fixedly connected to the outer surfaces of the four sleeves. The two ink-guiding arc plates are fixedly connected to the opposite surfaces of the two corresponding connecting plates. The two ink-guiding arc plates are in contact with the outer surface of the first ink-guiding roller.
[0006] Preferably, the ink uniform structure further includes four doctor blades, four limiting plates, and two limiting frames. The two limiting frames are fixedly connected to the inside of the ink storage box. The four doctor blades are fixedly connected to the corresponding connecting plates. The side of the four doctor blades away from the corresponding connecting plates slides to the outside of the ink storage box. The four limiting plates are fixedly connected to the outer surface of the corresponding sleeves. The four limiting plates are slidably connected to the inside of the corresponding limiting frames.
[0007] Preferably, the ink reservoir is rotatably connected to a main printing roller and a secondary printing roller, and the outer surface of the second ink guide roller is in contact with the outer surface of the main printing roller.
[0008] Preferably, two support plates are fixedly connected to one side of the ink storage box, and guide rollers are rotatably connected to the opposite surfaces of the two support plates.
[0009] Preferably, each of the four doctor blades has a scale line on its top.
[0010] Preferably, the back surfaces of both ink-guiding arc plates are inclined structures.
[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. The ink distributor of this label printing machine has an inclined structure of the ink guide arc plate that is linked with the squeegee. When scraping excess ink from the edge of the first ink guide roller, the inclined plate guides the ink to flow towards the edge of the roller surface, avoiding the ink turbulence caused by the traditional squeegee scraping ink in only one direction. This ensures that the ink flows along a preset path, prevents excess ink from entering the printing area, avoids uneven ink distribution at the edges, and further improves the printing quality. Attached Figure Description
[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the main printing roller structure of this utility model; Figure 3 This is a schematic diagram of the bidirectional threaded rod structure of this utility model; Figure 4 This is a schematic diagram of the doctor blade structure of this utility model; Figure 5 This is a schematic diagram of the ink-guiding arc plate structure of this utility model.
[0013] Reference numerals in the attached drawings: 1. Ink reservoir; 2. Stepper motor; 3. Doctor blade; 4. First ink guide roller; 5. Second ink guide roller; 6. Main printing roller; 7. Secondary printing roller; 8. Guide roller; 9. Bidirectional threaded rod; 10. Ink guide arc plate; 11. Limiting frame; 12. Sleeve; 13. Limiting plate; 14. Connecting plate; 15. Scale line; 16. Support plate. Detailed Implementation
[0014] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.
[0015] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0016] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.
[0017] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.
[0018] Please see Figure 1-5 This utility model provides a technical solution: an ink distributor for a label printing machine, comprising: The ink storage box 1 has a first ink guide roller 4 and a second ink guide roller 5 rotatably connected inside the ink storage box 1, and the outer surfaces of the first ink guide roller 4 and the second ink guide roller 5 are in contact. The ink uniform structure is located on the ink storage box 1. The ink uniform structure includes two stepper motors 2, two bidirectional threaded rods 9, and two ink-guiding arc plates 10. The two bidirectional threaded rods 9 are rotatably connected inside the ink storage box 1. The two stepper motors 2 are fixedly installed on one side of the ink storage box 1. The output ends of the two stepper motors 2 rotatably extend into the interior of the ink storage box 1 and are fixedly connected to the corresponding bidirectional threaded rods 9. Two sleeves 12 are threaded onto the outer surface of each of the two bidirectional threaded rods 9. Connecting plates 14 are fixedly connected to the outer surface of each of the four sleeves 12. The two ink-guiding arc plates 10 are fixedly connected to the opposite surfaces of the corresponding two connecting plates 14. The two ink-guiding arc plates 10 are in contact with the outer surface of the first ink-guiding roller 4. The opposite surfaces of the two ink-guiding arc plates 10 are both inclined structures.
[0019] The ink uniform structure also includes four doctor blades 3, four limiting plates 13, and two limiting frames 11. The two limiting frames 11 are fixedly connected to the inside of the ink storage box 1. The four doctor blades 3 are fixedly connected to the corresponding connecting plates 14. The side of the four doctor blades 3 away from the corresponding connecting plates 14 slides to the outside of the ink storage box 1. The four limiting plates 13 are fixedly connected to the outer surface of the corresponding sleeves 12. The four limiting plates 13 are slidably connected to the inside of the corresponding limiting frames 11. The top of the four doctor blades 3 is provided with scale lines 15.
[0020] The ink storage box 1 is rotatably connected to a main printing roller 6 and a secondary printing roller 7. The outer surface of the second ink guide roller 5 is in contact with the outer surface of the main printing roller 6. Two support plates 16 are fixedly connected to one side of the ink storage box 1. Guide rollers 8 are rotatably connected to the opposite surfaces of the two support plates 16.
[0021] Furthermore, when using this device, the label printing paper passes over the upper surface of the guide roller 8, then over the lower surface of the auxiliary printing roller 7, and passes between the main printing roller 6 and the auxiliary printing roller 7. The ink in the ink storage box 1 is transported from the ink storage area to the main printing roller 6 through the contact transmission between the first ink guide roller 4 and the second ink guide roller 5. The two stepper motors 2 are started, and the two stepper motors 2 drive the corresponding bidirectional threaded rods 9 to rotate. Since the threads at both ends of the bidirectional threaded rods 9 rotate in opposite directions, the two sleeves 12 sleeved on them can move horizontally under the guidance of the limiting plate 13 and the limiting frame 11. This allows the four sleeves 12 to drive the corresponding connecting plate 14 and the ink guide arc plate 10 to move synchronously towards the center, which facilitates adjustment according to the printing range. The inclined structure of the ink guide arc plate 10 can guide the flow of ink scraped by the edge of the squeegee 3.
[0022] The movement of the four connecting plates 14 will drive the corresponding scraper 3 to move. The part of the scraper 3 located inside the ink storage box 1 contacts the first ink guide roller 4, which can scrape off the excess ink from the edge of the first ink guide roller 4. The extension length of the scraper 3 can be adjusted intuitively through the scale line 15, and the position of the scraper 3 can be precisely controlled. The sliding cooperation between the limiting plate 13 and the limiting frame 11 ensures the stability of the sleeve 12 when it moves.
[0023] The inclined structure of the ink guide arc plate 10 is linked with the ink scraper 3. When scraping excess ink from the edge of the first ink guide roller 4, the inclined surface guides the ink to flow towards the edge of the roller surface, avoiding the problem of ink turbulence caused by the traditional scraper scraping ink in only one direction. This ensures that the ink flows along the preset path, prevents excess ink from entering the printing area, avoids uneven ink volume at the edge, and further improves the printing quality of the ink.
[0024] Structural Description: Ink Storage Box 1: Serves as a storage container for ink and also provides a mounting base for other components; First ink guide roller 4: works in conjunction with second ink guide roller 5 to transport ink from ink storage box 1 to main printing roller 6; Second ink guide roller 5: It contacts and drives the first ink guide roller 4 to transfer ink from the ink storage area to the main printing roller 6; Stepper motor 2: Provides rotational power to the bidirectional threaded rod 9, driving the bidirectional threaded rod 9 to rotate in both directions; Double-threaded rod 9: When rotating, because the threads at both ends of the rod rotate in opposite directions, it can drive the sleeve 12 to move horizontally; Ink-guiding arc plate 10: It contacts the outer surface of the first ink-guiding roller 4 and is used to guide the uniform distribution of ink. Its inclined structure helps to control the flow direction of ink. Sleeve 12: It is threaded onto the double-threaded rod 9 and moves as the double-threaded rod 9 rotates, thereby driving the connecting plate 14 and the ink guide arc plate 10 to move. Connecting plate 14: It is fixedly connected to the sleeve 12 and is used to connect the sleeve 12 and the ink guide arc plate 10, while driving the scraper plate 3 to move. The doctor blade 3 is in contact with the first ink guide roller 4 and is used to scrape off excess ink from the edge of the first ink guide roller 4 to ensure uniform ink distribution. The scale line 15 on its top is used to visually adjust the extension length of the doctor blade 3. Limiting plate 13: It is fixedly connected to the sleeve 12 and slidably connected to the limiting frame 11 to ensure the stability of the sleeve 12 when it moves; Limiting bracket 11: It is fixedly connected inside the ink storage box 1 and slidably connected to the limiting plate 13, providing guidance for the movement of the sleeve 12; Main printing roller 6: Contacts the second ink guide roller 5, receives ink and transfers the ink to the label printing paper; Sub-printing roller 7: works in conjunction with the main printing roller 6 to print on the label printing paper, and at the same time, together with the main printing roller 6, it clamps and transports the label printing paper. Guide roller 8: Rotatably connected between two support plates 16, used to guide the label printing paper into the space between the main printing roller 6 and the auxiliary printing roller 7; Support plate 16: Fixedly connected to one side of ink storage box 1, providing a mounting base for guide roller 8.
[0025] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.
Claims
1. An ink distributor for a label printing machine, characterized in that, include: The ink storage box (1) has a first ink guide roller (4) and a second ink guide roller (5) rotatably connected inside it. The outer surfaces of the first ink guide roller (4) and the second ink guide roller (5) are in contact. The ink uniform structure is located on the ink storage box (1); The ink uniform structure includes two stepper motors (2), two bidirectional threaded rods (9) and two ink guide arc plates (10). The two bidirectional threaded rods (9) are rotatably connected inside the ink storage box (1). The two stepper motors (2) are fixedly installed on one side of the ink storage box (1). The output ends of the two stepper motors (2) are rotatably extended into the interior of the ink storage box (1) and fixedly connected to the corresponding bidirectional threaded rods (9). Among them, two sleeves (12) are threaded on the outer surface of the two bidirectional threaded rods (9), and connecting plates (14) are fixedly connected to the outer surface of the four sleeves (12). Two ink-guiding arc plates (10) are fixedly connected to the opposite surfaces of the corresponding two connecting plates (14), and the two ink-guiding arc plates (10) are in contact with the outer surface of the first ink-guiding roller (4).
2. The ink distributor for a label printing machine according to claim 1, characterized in that: The ink uniform structure also includes four scraper blades (3), four limiting plates (13) and two limiting frames (11). The two limiting frames (11) are fixedly connected inside the ink storage box (1), and the four scraper blades (3) are fixedly connected to the corresponding connecting plates (14). Among them, the four scraper blades (3) on the side away from the corresponding connecting plate (14) all slide to the outside of the ink storage box (1), the four limiting plates (13) are all fixedly connected to the outer surface of the corresponding sleeve (12), and the four limiting plates (13) are all slidably connected to the inside of the corresponding limiting frame (11).
3. The ink distributor for a label printing machine according to claim 1, characterized in that: The ink storage box (1) is rotatably connected to a main printing roller (6) and a secondary printing roller (7), and the outer surface of the second ink guide roller (5) is in contact with the outer surface of the main printing roller (6).
4. The ink distributor for a label printing machine according to claim 1, characterized in that: Two support plates (16) are fixedly connected to one side of the ink storage box (1), and guide rollers (8) are rotatably connected to the opposite surfaces of the two support plates (16).
5. The ink distributor for a label printing machine according to claim 2, characterized in that: The top of each of the four scraper blades (3) is provided with a scale line (15).
6. The ink distributor for a label printing machine according to claim 1, characterized in that: Both of the back sides of the two ink-guiding arc plates (10) are inclined structures.