A relief printing device for producing a security tag
By introducing a servo motor drive and spring clamping assembly into the letterpress printing device, the problem of printing surface position movement was solved, ensuring printing quality and achieving stable printing of anti-counterfeiting labels.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEFEI LANGJIN ANTI COUNTERFEITING TECH CO LTD
- Filing Date
- 2025-08-19
- Publication Date
- 2026-06-19
AI Technical Summary
In traditional letterpress printing, the lack of a reliable way to fix the printing surface leads to positional movement during printing, resulting in problems such as ghosting, misalignment, and misregistration of the printed pattern, which affects the printing quality.
A letterpress printing device for producing anti-counterfeiting labels was designed. It adopts a printing platform driven by a servo motor and a clamping assembly with thin and thick springs. Through the cooperation of push rods and springs, it ensures that the anti-counterfeiting labels do not shift during the printing process.
This effectively prevents the anti-counterfeiting label from shifting during the printing process, ensuring the quality of the printed product, avoiding ghosting and other issues, and improving the printing effect.
Smart Images
Figure CN224375124U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of letterpress printing technology, and more specifically, to a letterpress printing apparatus for producing anti-counterfeiting labels. Background Technology
[0002] Letterpress printing is one of the oldest printing techniques. It boasts unique advantages such as simple plate-making, flexible specifications, and strong adaptability. It can print on substrates of different materials, surfaces, qualities, thicknesses, and sizes, making it particularly suitable for small-batch, high-variety printing. The resulting ink layer is relatively thick, producing strong three-dimensional images and rich colors, creating a powerful visual impact. The back of the printed product also has slight embossing, with neat lines and strong strokes. In addition to the aforementioned advantages of letterpress printing, letterpress-printed anti-counterfeiting labels possess unique anti-counterfeiting advantages. They utilize raised patterns to form unique security markings, and the tactile feedback allows consumers to quickly verify authenticity by touch. This enhances product value while effectively protecting brand image and maintaining market order.
[0003] A common problem in traditional letterpress printing equipment is the lack of a reliable way to secure the surface to be printed on the printing platform. As a result, during the printing process, when the printing plate contacts the surface to be printed and applies pressure for ink transfer, the surface is easily displaced due to pressure, friction, and other external forces. This displacement leads to problems such as ghosting, misalignment, and misregistration in the printed pattern, severely impacting print quality and results.
[0004] How to design a letterpress printing device for anti-counterfeiting label production to improve these problems has become an urgent issue for those skilled in the art. Utility Model Content
[0005] To overcome the above deficiencies, this utility model provides a letterpress printing device for producing anti-counterfeiting labels, aiming to improve the problems mentioned in the background.
[0006] This utility model is implemented as follows:
[0007] This utility model provides a letterpress printing device for producing anti-counterfeiting labels, including a base plate. A servo motor is fixedly connected to the top of the base plate via a motor bracket. A drive wheel is fixedly sleeved on the output shaft of the servo motor. Multiple uprights are fixedly connected to the top of the base plate. A support platform is fixedly connected to the top of the multiple uprights. The support platform is curved. A printing platform is rotatably connected to the end of the support platform. A pressing assembly is provided on the printing platform. The pressing assembly includes multiple thin springs fixedly connected to the printing platform. The multiple thin springs are located inside the printing platform. A pressure plate is fixedly connected to the end of the multiple thin springs. A thick spring is fixedly connected to the side wall of the pressure plate. The thick spring is located inside the printing platform. A connecting plate is fixedly connected to the end of the thick spring. A push rod is fixedly connected to the side wall of the connecting plate.
[0008] Preferably, the push rod passes through the pressure plate and is slidably disposed with the pressure plate.
[0009] Preferably, the top of the base plate is fixedly connected to a plurality of first fixing rods, one of which is rotatably connected to a driven wheel and a pinion. The pinion is fixedly sleeved on the central shaft of the driven wheel. The pinion is arranged in a plurality of configurations, and a plurality of large gears are provided on one side of the pinion. The pinion meshes with the large gears.
[0010] Preferably, a first rotating shaft is installed inside one of the large gears, and a first rotating wheel is fixedly sleeved at the end of the first rotating shaft. A plurality of second fixed rods are fixedly connected to the top of the base plate, and a second rotating shaft is rotatably connected to the second fixed rods. A second rotating wheel and an auxiliary gear are fixedly sleeved at both ends of the second rotating shaft, respectively.
[0011] Preferably, a first connecting rod is rotatably connected to the first rotating wheel, a second connecting rod is rotatably connected to the second rotating wheel, the end of the second connecting rod is rotatably connected to the printing platform, and a swing rod is rotatably connected to the outer wall of the second rotating shaft.
[0012] Preferably, the end of the first connecting rod is rotatably connected to the swing rod, and an ink roller is slidably disposed at the end of the swing rod.
[0013] Preferably, the top of the base plate is rotatably connected to a third rotating shaft via a fixing frame. The third rotating shaft is connected to the first rotating shaft via a set of bevel gears. A rotating assembly is provided on the top of the third rotating shaft, and an ink disk is provided on the top of the rotating assembly. The ink disk is rotatably connected to the support platform.
[0014] The beneficial effects of this utility model are: by pushing the support platform with the push rod, the coarse spring drives the pressure plate to move towards the printing platform, pressing the anti-counterfeiting label located between the printing platform and the pressure plate, thus preventing the anti-counterfeiting label from shifting under pressure, friction and other external forces, and ensuring that the printed product does not have ghosting or other phenomena. Attached Figure Description
[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.
[0016] Figure 1 This is a three-dimensional structural diagram of a letterpress printing device for producing anti-counterfeiting labels provided by an embodiment of this utility model;
[0017] Figure 2 This is a schematic diagram of the printing platform structure of a letterpress printing device for producing anti-counterfeiting labels, provided by an embodiment of this utility model.
[0018] Figure 3 yes Figure 2 Enlarged view of point A in the middle;
[0019] Figure 4 This is a schematic diagram of the pressure plate structure of a letterpress printing device for producing anti-counterfeiting labels, provided by an embodiment of this utility model.
[0020] Figure 5 This is a schematic diagram of the position of the second connecting rod in a letterpress printing device for producing anti-counterfeiting labels, provided by an embodiment of this utility model.
[0021] Figure 6 This is a schematic diagram of the swing arm position of a letterpress printing device for producing anti-counterfeiting labels, provided by an embodiment of this utility model.
[0022] Figure 7 This is a schematic diagram of the ink disk position of a letterpress printing device for producing anti-counterfeiting labels, provided by an embodiment of this utility model.
[0023] In the diagram: 1. Base plate; 2. Servo motor; 3. Drive wheel; 4. Stand; 5. Support platform; 6. Printing platform; 7. First fixed rod; 8. Driven wheel; 9. Pinion; 10. Gear; 11. First rotating shaft; 12. First rotating wheel; 13. Second fixed rod; 14. Second rotating shaft; 15. Auxiliary gear; 16. Second rotating wheel; 17. First connecting rod; 18. Second connecting rod; 19. Swing rod; 20. Ink roller; 30. Fixing frame; 31. Bevel gear; 32. Third rotating shaft; 33. Rotating assembly; 34. Ink disk; 61. Pressure plate; 62. Thin spring; 63. Coarse spring; 64. Connecting plate; 65. Push rod. Detailed Implementation
[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0025] Example, refer to Figures 1-7 A letterpress printing device for producing anti-counterfeiting labels includes a base plate 1. A servo motor 2 is fixedly connected to the top of the base plate 1 via a motor bracket. A drive wheel 3 is fixedly sleeved on the output shaft of the servo motor 2. Multiple uprights 4 are fixedly connected to the top of the base plate 1. A support platform 5 is fixedly connected to the top of the multiple uprights 4. The support platform 5 is curved. A printing platform 6 is rotatably connected to the end of the support platform 5. A pressing assembly is provided on the printing platform 6. The pressing assembly includes multiple thin springs 62 fixedly connected to the printing platform 6. The multiple thin springs 62 are located inside the printing platform 6. A pressure plate 61 is fixedly connected to the end of the multiple thin springs 62. A coarse spring 63 is fixedly connected to the side wall of the pressure plate 61. The coarse spring 63 is located inside the printing platform 6. A connecting plate 64 is fixedly connected to the end of the coarse spring 63. A push rod 65 is fixedly connected to the side wall of the connecting plate 64. The push rod 65 passes through the pressure plate 61 and slides with the pressure plate 61.
[0026] Multiple first fixing rods 7 are fixedly connected to the top of the base plate 1. A driven wheel 8 and a pinion 9 are rotatably connected to one of the first fixing rods 7. The pinion 9 is fixedly sleeved on the central shaft of the driven wheel 8. Multiple pinions 9 are arranged in a plurality, and multiple large gears 10 are arranged on one side of the pinion 9. The pinion 9 and the large gears 10 are meshed. A first rotating shaft 11 is installed inside one of the large gears 10. A first rotating wheel 12 is fixedly sleeved at the end of the first rotating shaft 11. Multiple second fixing rods 13 are fixedly connected to the top of the base plate 1. A second rotating shaft 14 is rotatably connected to the second fixing rod 13. A second rotating wheel 16 and an auxiliary gear 15 are fixedly sleeved at both ends of the second rotating shaft 14, respectively. A first connecting rod 17 is rotatably connected to a first rotating wheel 12, and a second connecting rod 18 is rotatably connected to a second rotating wheel 16. The end of the second connecting rod 18 is rotatably connected to the printing platform 6. A swing rod 19 is rotatably connected to the outer wall of the second rotating shaft 14. The end of the first connecting rod 17 is rotatably connected to the swing rod 19. An ink roller 20 is slidably mounted on the end of the swing rod 19. A third rotating shaft 32 is rotatably connected to the top of the base plate 1 via a fixing frame 30. The third rotating shaft 32 is connected to the first rotating shaft 11 via a set of bevel gears 31. A rotating assembly 33 is mounted on the top of the third rotating shaft 32. An ink disk 34 is mounted on the top of the rotating assembly 33. The ink disk 34 is rotatably connected to the support platform 5.
[0027] The working principle of this letterpress printing device for producing anti-counterfeiting labels is as follows: The prepared printing plate is placed between the support platform 5 and the printing platform 6. The printing plate is fixed on the support platform 5. Ink is evenly applied to the ink disk 34. The anti-counterfeiting label to be printed is placed between the printing platform 6 and the pressure plate 61. The servo motor 2 is started, driving the drive wheel 3 to rotate. This drives the driven wheel 8 to rotate via a belt. The driven wheel 8 drives the pinion 9 and the large gear 10 to reduce speed. The large gear 10 drives the first rotating shaft 11 to rotate, which in turn drives the first rotating wheel 12 to rotate. This causes one end of the first connecting rod 17 to perform a circular motion, while the other end rotates due to its contact with the pendulum. The movable rod 19 is rotatably connected, driving the swing rod 19 to swing. The ink roller 20 on the swing rod 19 first dips into the ink on the ink disk 34, then covers the ink on the printing plate on the support platform 5, and then swings back. At the same time, the first rotating shaft 11 also drives the second rotating shaft 14 to rotate through the auxiliary gear 15, driving the second rotating wheel 16 to rotate. Since the two ends of the second connecting rod 18 are rotatably connected to the second rotating wheel 16 and the printing platform 6 respectively, the second connecting rod 18 drives the printing platform 6 to swing on the support platform 5 through the transmission of the second rotating wheel 16, pushing the anti-counterfeiting label placed on the printing platform 6 towards the printing plate, pressing it against the printing plate, and completing the printing of the anti-counterfeiting label.
[0028] As the printing platform 6 moves toward the support platform 5, the push rod 65 first contacts the support platform 5, pushing the push rod 65 toward the connecting plate 64. Through the thick spring 63, the pressure plate 61 overcomes the elastic force of multiple thin springs 62, causing the pressure plate 61 to move toward the printing platform 6, pressing down the anti-counterfeiting label located between the printing platform 6 and the pressure plate 61. This prevents the anti-counterfeiting label from shifting under pressure, friction, or other external forces, ensuring that the printed product does not exhibit ghosting or other phenomena.
[0029] It should be noted that the specific model and specifications of the motor need to be selected and determined based on the actual specifications of the device. The specific selection and calculation method adopts the existing technology in this field, so it will not be described in detail here.
[0030] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A relief printing device for the production of a security label, comprising a base plate (1), characterized in that A servo motor (2) is fixedly connected to the top of the base plate (1) via a motor bracket. The output shaft of the servo motor (2) is fixedly fitted with a drive wheel (3). Multiple uprights (4) are fixedly connected to the top of the base plate (1). A support platform (5) is fixedly connected to the top of the multiple uprights (4). The support platform (5) is set in the shape of a curved plate. A printing platform (6) is rotatably connected to the end of the support platform (5). A pressing assembly is provided on the printing platform (6). The pressing assembly includes multiple thin springs (62) fixedly connected to the printing platform (6). The multiple thin springs (62) are located inside the printing platform (6). A pressure plate (61) is fixedly connected to the end of the multiple thin springs (62). A thick spring (63) is fixedly connected to the side wall of the pressure plate (61). The thick spring (63) is located inside the printing platform (6). A connecting plate (64) is fixedly connected to the end of the thick spring (63). A push rod (65) is fixedly connected to the side wall of the connecting plate (64).
2. A relief printing device for the production of a security label according to claim 1, characterized in that The push rod (65) passes through the pressure plate (61) and is slidably disposed with the pressure plate (61).
3. A relief printing device for the production of a security label according to claim 1, characterized in that The top of the base plate (1) is fixedly connected to a plurality of first fixing rods (7), one of which is rotatably connected to a driven wheel (8) and a pinion (9). The pinion (9) is fixedly sleeved on the central shaft of the driven wheel (8). The pinion (9) is arranged in multiple ways. A plurality of large gears (10) are arranged on one side of the pinion (9). The pinion (9) meshes with the large gears (10).
4. A relief printing device for the production of a security label according to claim 3, characterized in that One of the large gears (10) is equipped with a first rotating shaft (11), and a first rotating wheel (12) is fixedly sleeved at the end of the first rotating shaft (11). A plurality of second fixed rods (13) are fixedly connected to the top of the base plate (1). A second rotating shaft (14) is rotatably connected to the second fixed rod (13). A second rotating wheel (16) and an auxiliary gear (15) are fixedly sleeved at both ends of the second rotating shaft (14).
5. The letterpress printing apparatus for producing anti-counterfeiting labels according to claim 4, characterized in that, The first rotating wheel (12) is rotatably connected to a first connecting rod (17), the second rotating wheel (16) is rotatably connected to a second connecting rod (18), the end of the second connecting rod (18) is rotatably connected to the printing platform (6), and the outer wall of the second rotating shaft (14) is rotatably connected to a swing rod (19).
6. The letterpress printing apparatus for producing anti-counterfeiting labels according to claim 5, characterized in that, The end of the first connecting rod (17) is rotatably connected to the swing rod (19), and the end of the swing rod (19) is slidably provided with an ink roller (20).
7. The letterpress printing apparatus for producing anti-counterfeiting labels according to claim 6, characterized in that, The top of the base plate (1) is rotatably connected to a third rotating shaft (32) via a fixing frame (30). The third rotating shaft (32) is connected to the first rotating shaft (11) via a set of bevel gears (31). A rotating assembly (33) is provided on the top of the third rotating shaft (32). An ink disk (34) is provided on the top of the rotating assembly (33). The ink disk (34) is rotatably connected to the support platform (5).