Printing module with stepless adjusting structure
By adopting a spiral axial adjustment structure with an adjusting rod and a fixed shaft at the ribbon supply end, the problem of poor adaptability of ribbon width adjustment in the existing technology is solved, stepless adjustment is achieved, and the stability and versatility of the printing module are improved.
Patent Information
- Application Number
- CN202520593273.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-03-31
AI Technical Summary
The existing ribbon supply adjustment method is a snap-on graded adjustment, which has poor adaptability. This results in increased damping when the ribbon width is small, and wrinkles easily appear when the width is large, affecting the printing process.
It adopts a spiral axial adjustment structure with an adjusting rod and a fixed shaft. The coupling between the adjusting rod and the fixed shaft forms a spiral axial adjustment, which realizes stepless adjustment at the carbon ribbon supply end and can adapt to carbon ribbons of different widths.
It achieves stepless adjustment of the ribbon supply, adapts to ribbons of different widths, improves the stability and versatility of the printing module, reduces consumable management costs, and ensures precise alignment between the ribbon and the printing media.
Smart Images
Figure CN223890669U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of printing module technology, and in particular to a printing module with a stepless adjustment structure. Background Technology
[0002] As a printing consumable, the ribbon is wound in a roll on the ribbon supply end and recycled to the ribbon recycling end after printing by the print head. However, the existing adjustment method of the ribbon supply end is generally a snap-on step adjustment, which has poor adaptability. When the ribbon width is small, the damping between the ribbon and the fixed cylinder increases. When the ribbon width is large, the ribbon is prone to wrinkles, which is not conducive to the printing process. Summary of the Invention
[0003] This invention provides a printing module with a stepless adjustment structure, aiming to solve at least one of the technical problems existing in the prior art.
[0004] This utility model provides a printing module, including a body, a print head, a ribbon recycling end and a ribbon supply end. The print head, ribbon recycling end and ribbon supply end are all disposed on the body. When the printing module is working, the ribbon recycling end drives the ribbon to be wound from the ribbon supply end through the print head to the ribbon recycling end.
[0005] The ribbon supply end includes a fixed cylinder, a fixed shaft, and an adjusting rod. The fixed cylinder is mounted on the machine body, the fixed shaft passes through the inner side of the fixed cylinder, and the adjusting rod is connected to the end of the fixed cylinder away from the machine body and coupled with the fixed shaft to form a spiral axial adjustment structure, so that the ribbon supply end can adapt to ribbons of different widths.
[0006] In the printing module of one embodiment of this utility model, the axial adjustment stroke of the adjusting rod is in the range of 0 to 8 mm.
[0007] In a printing module according to one embodiment of the present invention, the ribbon supply end further includes a ribbon baffle, and the end of the fixed shaft away from the adjusting rod passes through the fixed cylinder and is connected to the ribbon baffle, and the ribbon baffle is installed on the machine body.
[0008] In a printing module according to one embodiment of the present invention, the ribbon supply end further includes an adjusting spring. A first through hole is formed at one end of the fixed cylinder near the adjusting rod. The adjusting spring is installed in the first through hole and is used to apply an elastic force toward the adjusting rod in a direction away from the ribbon baffle.
[0009] In a printing module according to one embodiment of the present invention, the fixed cylinder is provided with a slot at one end near the adjusting rod, and a scale is marked on the outside of the slot. The adjusting rod is provided with an indicator groove, which cooperates with the scale to measure the adjustment distance of the adjusting rod relative to the fixed cylinder.
[0010] In a printing module according to one embodiment of the present invention, the ribbon supply end further includes a limiting stud, a limiting groove is formed on the indicator groove, and the limiting stud is disposed in the limiting groove and located in the slot.
[0011] In a printing module according to one embodiment of the present invention, the ribbon supply end further includes a ribbon fixing plate and a level. The ribbon fixing plate is fixed to the outside of the fixing cylinder, and the level is fixed to the ribbon fixing plate.
[0012] In a printing module according to one embodiment of the present invention, the ribbon supply end further includes a penetrating sensor, which is fixed to the bottom of the ribbon baffle and is used to detect the rotation state of the ribbon supply end.
[0013] In a printing module according to one embodiment of the present invention, the ribbon supply end further includes a limiting block, a pressure plate and a felt. The limiting block is fixed to one end of the fixed shaft facing away from the ribbon baffle, and the felt is disposed between the limiting block and the ribbon baffle through the pressure plate.
[0014] In a printing module according to one embodiment of the present invention, the ribbon supply end further includes a reset spring, which is connected between the ribbon baffle and the machine body.
[0015] The technical solution provided in this application embodiment can include the following beneficial effects: This application designs a printing module with a stepless adjustment structure, which can form a spiral axial adjustment structure through the coupling of the adjustment rod and the fixed shaft, so that the ribbon supply end can be adapted to ribbons of different widths, which facilitates the disassembly, replacement and installation of the ribbon, improves the use effect of the printing module, solves the defect of existing printing modules that need to be adjusted by clips in stages during use, meets the printing speed requirements, and improves its stability.
[0016] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description
[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is a partial structural schematic diagram of a printing module provided in one embodiment of this application;
[0019] Figure 2 yes Figure 1 A partial cross-sectional view of the printing module in the diagram;
[0020] Figure 3 yes Figure 1 A partially exploded view of the printing module in the diagram;
[0021] Figure 4 yes Figure 1 A partial schematic diagram of the carbon ribbon supply end.
[0022] Explanation of reference numerals in the attached figures:
[0023] 100. Carbon ribbon supply end;
[0024] 11. Fixed cylinder; 111. Slot; 112. First through hole; 12. Fixed shaft; 13. Adjusting rod; 131. Indicator slot; 14. Adjusting spring; 15. Carbon ribbon baffle; 151. Grating; 16. Carbon ribbon fixing plate; 17. Level; 18. Limiting block; 19. Felt; 20. Pressure plate; 22. Penetrating sensor; 23. Limiting stud; 24. Limiting bearing; 25. Return spring;
[0025] 200. Body. Detailed Implementation
[0026] 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, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0027] It should also be understood that the terminology used in this utility model specification is merely for describing specific aspects of the present application. It is important to understand that terms such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present application 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 the present application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.
[0028] The following detailed description of some embodiments of this application is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.
[0029] like Figures 1 to 4 As shown, this application provides a printing module with a stepless adjustment structure, including a body 200, a print head, a ribbon take-up end, and a ribbon supply end 100. The print head, ribbon take-up end, and ribbon supply end 100 are all mounted on the body 200. When the printing module is working, the ribbon take-up end drives the ribbon from the ribbon supply end 100 through the print head and onto the ribbon take-up end. The ribbon supply end 100 includes a fixed cylinder 11, a fixed shaft 12, and an adjusting rod 13. The fixed cylinder 11 is mounted on the body 200, the fixed shaft 12 passes through the inner side of the fixed cylinder 11, and the adjusting rod 13 is connected to the end of the fixed cylinder 11 away from the body 200 and coupled with the fixed shaft 12 to form a stepless adjustment structure along the helical axis. This allows the ribbon supply end 100 to adapt to ribbons of different widths and enables stepless adjustment of the ribbon supply end 100 to meet the needs of different ribbon widths, thereby improving its stability.
[0030] After adopting the above technical solution, the adjusting rod 13 and the fixed shaft 12 form a spiral axial adjustment structure through a coupling method similar to a spiral mechanism. When the adjusting rod 13 is rotated, the adjusting rod 13 can be axially displaced along the thread direction within the fixed cylinder 11, thereby changing the lateral installation space of the carbon ribbon to adapt to the needs of carbon ribbons of different widths and improve its stability.
[0031] For example, when the ribbon width is narrow, tightening the adjusting rod 13 causes it to retract towards the machine body 200, thereby reducing the gap between the ribbon and the machine body 200. When the ribbon width is wide, loosening the adjusting rod 13 causes it to move away from the machine body 200, expanding the lateral installation space of the ribbon. This allows for the adaptation of various ribbon specifications without replacing parts, reducing consumable management costs. At the same time, the spiral axial adjustment structure provides fine-tuning capability, enabling stepless adjustment of the ribbon supply end 100, ensuring precise alignment between the ribbon and the printing media, improving the versatility of the printing module, and making it suitable for printing modules that require frequent ribbon specification changes.
[0032] In one optional embodiment, the axial adjustment stroke of the adjusting rod 13 is within the range of 0 to 8 mm. Specifically, when the axial adjustment stroke of the adjusting rod 13 is 0 mm, and the adjusting rod 13 is fully tightened, it is in its initial position. When the axial adjustment stroke of the adjusting rod 13 is 8 mm, and the adjusting rod 13 is rotated to its maximum stroke, the adjusting rod 13 moves outward to its maximum displacement, which can adapt to the maximum width increment of the carbon ribbon.
[0033] In an optional embodiment, the ribbon supply end 100 further includes a ribbon retainer 15. One end of the fixed shaft 12, away from the adjusting rod 13, passes through the fixed cylinder 11 and connects to the ribbon retainer 15. The ribbon retainer 15 is mounted on the machine body 200 to improve the stability and alignment accuracy of the ribbon supply end 100. The ribbon retainer 15 is linked to the fixed shaft 12, and by contacting the end face of the ribbon with its inner side, it restricts the axial displacement of the ribbon, preventing ribbon deviation during printing.
[0034] In one optional implementation, the diameter of the ribbon retainer 15 is larger than the inner diameter of the ribbon roll, ensuring that the ribbon will not slip off the shaft end. This improves the installation efficiency of ribbons of different widths and ensures the stability of the ribbon during printing. The ribbon roll is formed by winding the ribbon.
[0035] In an optional embodiment, the carbon ribbon supply end 100 further includes an adjusting spring 14. A first through hole 112 is formed at one end of the fixed cylinder 11 near the adjusting rod 13. The adjusting spring 14 is installed in the first through hole 112 and is used to apply an elastic force toward the adjusting rod 13 toward the direction away from the carbon ribbon baffle 15, so that the carbon ribbon baffle 15 is always in close contact with the end face of the carbon ribbon roll and eliminates axial clearance.
[0036] For example, the adjusting spring 14 is sleeved in the fixed shaft 12, and the two ends of the adjusting spring 14 abut against the bottom of the first through hole 112 and the end face of the adjusting rod 13, respectively. When there is a tolerance in the width of the carbon ribbon, the adjusting spring 14 can not only automatically compress to compensate for the difference and avoid manual fine adjustment, but also counteract vibration during the printing process and prevent the adjusting rod 13 from rotating spontaneously due to vibration, thus achieving stepless adjustment of the torque of the adjusting rod 13 to adapt to the needs of carbon ribbons of different widths. During the operation of the printing module, it can match the needs of carbon ribbons of different widths and carbon ribbon printing speeds, thereby improving the stability of the carbon ribbon during the printing process.
[0037] Specifically, when the adjusting rod 13 is manually adjusted, rotating the adjusting rod 13 overcomes the elastic force of the adjusting spring 14, allowing the adjusting rod 13 to move axially relative to the fixed cylinder 11. This balances the self-locking force of the adjusting spring 14's thread on the adjusting rod 13, resulting in a stable clamping state. In this application, the thread of the adjusting rod 13 enables both macroscopic width adjustment and fine-tuning, ensuring precise alignment of the ribbon and printing media. The adjusting spring 14 provides microscopic adaptive capability to handle ribbon tolerances and vibrations.
[0038] In an optional embodiment, the fixed cylinder 11 has a groove 111 at one end near the adjusting rod 13, with a scale marked on the outer side of the groove 111. The adjusting rod 13 has an indicator groove 131, which cooperates with the scale to measure the adjustment distance of the adjusting rod 13 relative to the fixed cylinder 11, further optimizing the convenience and accuracy of ribbon width adaptation. By aligning the scale with the indicator groove 131, the axial displacement of the adjusting rod 13 can be directly read, avoiding guesswork based on experience. Furthermore, when changing the ribbon, it can be quickly reset to the preset position according to the scale, reducing repeated adjustment time. In addition, the scale markings clearly indicate the adjustment limits, preventing mechanical damage caused by excessive rotation and facilitating adjustment according to different ribbon widths.
[0039] In an optional embodiment, the ribbon supply end 100 further includes a limiting stud 23. A limiting groove is formed on the indicator groove 131, and the limiting stud is disposed in the limiting groove and located within the retaining groove 111, realizing mechanical hard limiting and control of the adjustable stroke range, further improving the safety and flexibility of ribbon width adjustment. Specifically, by turning the limiting stud 23, the movement of the limiting stud 23 within the indicator groove 131 can be physically blocked, thereby forcibly limiting the maximum stroke of the adjusting rod 13 and preventing the user from accidentally turning the adjusting rod 13 out, causing the adjusting rod 13 to detach from the fixed shaft 12.
[0040] In an optional embodiment, the ribbon supply end 100 further includes a ribbon fixing plate 16 and a level 17. The ribbon fixing plate 16 is fixed to the outside of the fixing cylinder 11, and the level 17 is fixed to the ribbon fixing plate 16, facilitating axial leveling of the ribbon supply end 100 to reduce ribbon wrinkles during printing module operation, thus achieving physical stability and attitude controllability of the ribbon supply end 100. The ribbon fixing plate 16 enhances the radial constraint of the ribbon roll, reducing lateral displacement during high-speed operation, while the level 17 provides real-time feedback to ensure the overall alignment accuracy of the printing system.
[0041] In an optional embodiment, the ribbon supply end 100 further includes a penetrating sensor 22, which is fixed to the bottom of the ribbon baffle 15 and is used to detect the rotation state of the ribbon supply end 100 to achieve precise positioning.
[0042] For example, the ribbon tray 15 is provided with a grating 151 and a penetrating sensor 22 is fixed on the body 200. The grating 151 and the penetrating sensor 22 work together to not only detect whether the ribbon supply end 100 is rotating normally in real time, but also to identify abnormal states such as ribbon jamming, breakage or exhaustion, accurately predict the ribbon balance, optimize the replacement plan, realize real-time monitoring of the rotation status of the ribbon supply end 100, and provide key operating status feedback for the printing module.
[0043] In an optional embodiment, the ribbon supply end 100 further includes a limiting block 18, a pressure plate 20, and a felt 19. The limiting block 18 is fixed to one end of the fixed shaft 12 facing away from the ribbon baffle 15. The felt 19 is disposed between the limiting block 18 and the ribbon baffle 15 through the pressure plate 20. It can absorb the small tension fluctuations of the ribbon supply end 100 during operation, reduce the vibration between it and adjacent components, and thus maintain stable conveying.
[0044] For example, the limiting block 18 is fixed to the ribbon baffle 15 by screws, the pressure plate 20 and the felt 19 are fixed between the limiting block 18 and the ribbon baffle 15, and the fixed shaft 12 passes through the felt 19, the pressure plate 20 and the limiting block 18 and is limited by a snap ring. The ribbon supply end 100 also includes a ball bearing and two limiting bearings 24. The fixed shaft 12 is rotatably connected to the fixed cylinder 11 at the end near the first through hole 112 through one of the limiting bearings 24. The ball bearing is connected to the end of the fixed cylinder 11 away from the first through hole 112. The limiting block 18 is rotatably connected to the fixed shaft 12 through the other limiting bearing 24. The snap ring is engaged on the side of the fixed shaft 12 opposite to the limiting block 18, so that a precise axial pressure adjustment and damping system can be constructed in the ribbon supply end 100, which also improves the stability of the ribbon operation.
[0045] Specifically, the fixed shaft 12 is connected to the adjusting rod 13 at one end with a threaded structure. The adjusting spring 14 is fitted onto the threaded end of the fixed shaft 12, so that one end of the adjusting spring 14 abuts against the limiting bearing 24 located near the first through hole 112, and the other end of the adjusting spring 14 abuts against the adjusting rod 13. Rotating the adjusting rod 13 causes the adjusting spring 14 to be elastically deformed by the squeezing force of the adjusting rod 13, thereby applying a reverse elastic force to the adjusting shaft. This allows a lateral installation space that can be formed between the adjusting shaft and the carbon ribbon baffle 15 to accommodate carbon ribbons of different widths. At the same time, it ensures that the adjusting spring 14 can generate torque that can accommodate carbon ribbons of different widths, achieving a perfect balance between mechanical limiting and elastic clamping. It also has the integrated features of vibration absorption and friction control.
[0046] In an optional embodiment, the ribbon supply end 100 further includes a return spring 25 connected between the ribbon retainer 15 and the machine body 200, so that the pressure applied to the felt 19 by the fixed cylinder 11 can be adjusted by rotating the adjusting rod 13. The greater the pressure applied to the felt 19 by the fixed cylinder 11, the greater the pressure of the return spring 25, and the greater the mutual friction between them. Therefore, the friction force generated by the felt 19 can be adjusted to a suitable value according to ribbons of different widths, ensuring that the friction force of the felt 19 acting on the ribbon maintains its correct position and alignment, preventing lateral shift and circumferential runout during operation, and ensuring accurate positioning of the printed content.
[0047] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. They can refer to a mechanical connection or an electrical connection. They can refer to a direct connection or an indirect connection through an intermediate medium, and they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.
[0048] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0049] The foregoing disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described above. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.
[0050] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with an embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
Claims
1. A printing module with a stepless adjustment structure, characterized in that, The device includes a body, a print head, a ribbon recycling end, and a ribbon supply end. The print head, ribbon recycling end, and ribbon supply end are all located on the body. When the printing module is working, the ribbon recycling end drives the ribbon to be wound from the ribbon supply end through the print head to the ribbon recycling end. The ribbon supply end includes a fixed cylinder, a fixed shaft, and an adjusting rod. The fixed cylinder is mounted on the machine body, the fixed shaft passes through the inner side of the fixed cylinder, and the adjusting rod is connected to the end of the fixed cylinder away from the machine body and coupled with the fixed shaft to form a spiral axial adjustment structure, so that the ribbon supply end can adapt to ribbons of different widths.
2. The printing module according to claim 1, characterized in that, The axial adjustment stroke of the adjusting rod is in the range of 0 to 8 mm.
3. The printing module according to claim 1, characterized in that, The ribbon supply end also includes a ribbon baffle. The end of the fixed shaft away from the adjusting rod passes through the fixed cylinder and is connected to the ribbon baffle. The ribbon baffle is mounted on the machine body.
4. The printing module according to claim 3, characterized in that, The ribbon supply end also includes an adjusting spring. A first through hole is formed at one end of the fixed cylinder near the adjusting rod. The adjusting spring is installed in the first through hole and is used to apply an elastic force toward the adjusting rod in a direction away from the ribbon baffle.
5. The printing module according to claim 3, characterized in that, The fixed cylinder has a slot at one end near the adjusting rod, and a scale is marked on the outside of the slot. The adjusting rod has an indicator slot, which cooperates with the scale to measure the adjustment distance of the adjusting rod relative to the fixed cylinder.
6. The printing module according to claim 5, characterized in that, The carbon ribbon supply end also includes a limiting stud, and a limiting groove is formed on the indicator groove. The limiting stud is disposed in the limiting groove and located in the slot.
7. The printing module according to claim 3, characterized in that, The ribbon supply end also includes a ribbon fixing plate and a level. The ribbon fixing plate is fixed to the outside of the fixing cylinder, and the level is fixed to the ribbon fixing plate.
8. The printing module according to claim 3, characterized in that, The ribbon supply end also includes a penetrating sensor, which is fixed to the bottom of the ribbon baffle and is used to detect the rotation state of the ribbon supply end.
9. The printing module according to claim 3, characterized in that, The ribbon supply end also includes a limiting block, a pressure plate, and a felt. The limiting block is fixed to one end of the fixed shaft facing away from the ribbon baffle, and the felt is disposed between the limiting block and the ribbon baffle through the pressure plate.
10. The printing module according to claim 9, characterized in that, The ribbon supply end also includes a return spring, which is connected between the ribbon baffle and the machine body.