A self-adhesive backing paper flexographic printing mechanism
By designing a flexographic printing mechanism for self-adhesive backing paper, using a dual-axis motor to drive a stirring rod to mix ink, and by adjusting the distance and pressing pressure between the roller and the fixed roller, combined with a negative pressure conveying system, the applicability of the flexographic printing machine to printing self-adhesive labels of different sizes has been solved, improving printing quality and efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI BAO ZHONG BAO ADHESIVE PROD CO LTD
- Filing Date
- 2025-09-03
- Publication Date
- 2026-06-30
AI Technical Summary
Existing flexographic printing presses cannot print self-adhesive labels of different sizes, which has certain limitations.
A self-adhesive backing paper flexographic printing mechanism was designed. The mechanism uses a dual-axis motor to drive a stirring rod to mix ink, adjusts the distance and pressing pressure between the roller and the fixed roller, and achieves uniform ink application through a negative pressure conveying system, thus adapting to the flexographic printing needs of materials with different thicknesses.
It enables flexographic printing to be applied to materials of different thicknesses and sizes, improving printing quality and efficiency.
Smart Images

Figure CN224426833U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a flexographic printing mechanism, specifically a self-adhesive backing paper flexographic printing mechanism. Background Technology
[0002] Flexographic printing, short for flexible plate printing machine, belongs to letterpress printing. It gets its name from the fact that its printing plates are often made of flexible materials such as natural rubber, synthetic rubber, and photosensitive resin. Flexographic printing machines are generally classified into three types according to the arrangement of the printing units: satellite type, stacked type, and unit type. In a unit type flexographic printing machine, each printing unit is independent and arranged in a horizontal straight line. Besides possessing the advantages of a stacked type flexographic printing machine, it features automatic control systems such as tension control and registration, resulting in precise registration and high-speed printing. Furthermore, unit type flexographic printing machines can print both single sheets and roll materials, and have a wider printing area. Currently, to enhance the quality of printed products and achieve anti-counterfeiting purposes, it is often necessary to print patterns on the adhesive surface of self-adhesive labels. Existing flexographic printing machines cannot print self-adhesive labels of different sizes, which has certain limitations. Therefore, a flexographic printing mechanism for self-adhesive backing paper needs to be designed to solve this problem. Utility Model Content
[0003] The purpose of this invention is to provide a self-adhesive backing paper flexographic printing mechanism to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution:
[0005] A self-adhesive backing paper flexographic printing mechanism includes a mounting plate, a connecting rod mounted on the mounting plate, a housing mounted on the end of the connecting rod away from the mounting plate, a stirring rod disposed within the housing, a dual-axis motor mounted on the mounting plate, a first drive shaft and a second drive shaft mounted on the output end of the dual-axis motor, the first drive shaft passing through the housing at the end away from the dual-axis motor, and the stirring rod mounted on the first drive shaft, a sliding groove formed on the mounting plate, a slider slidably mounted in the groove, a mounting rod mounted on the mounting plate, a fixed roller mounted on the end of the mounting rod away from the mounting plate, an adjusting rod hinged to one side of the mounting plate, the adjusting rods being symmetrically arranged, and an adjusting plate connecting the adjusting rods, with the adjusting rods being away from the mounting plate... An adjusting roller is connected to one end of the plate. An ink filling chamber is provided on one side of the adjusting roller, and the ink filling chamber is in contact with the surface of the adjusting roller. An adjusting assembly is installed on the mounting plate. The adjusting assembly is connected to the second drive shaft. A support rod is installed on the housing. A conveying chamber is installed at the end of the support rod away from the housing. A first connecting pipe and a second connecting pipe are connected to the conveying chamber. The end of the first connecting pipe away from the conveying chamber is connected to the housing, and the end of the second connecting pipe away from the conveying chamber is connected to the ink filling chamber. A one-way valve is installed on both the first and second connecting pipes. A piston is slidably installed in the conveying chamber. A transmission assembly is installed on the first drive shaft. The end of the transmission assembly away from the first drive shaft is connected to the piston.
[0006] As a further embodiment of this utility model: the adjustment component includes an adjustment groove, an adjustment groove is provided on the mounting plate, an adjustment block is slidably installed in the adjustment groove, a movable rod is hinged on the adjustment block, the end of the movable rod away from the adjustment block is hinged to the adjustment plate, a threaded rod is installed on the end of the second drive shaft away from the dual-axis motor, the end of the threaded rod away from the second drive shaft is rotatably connected to the bottom wall of the adjustment groove, and the threaded rod is connected to the adjustment block by a thread.
[0007] As a further embodiment of this utility model: the transmission assembly includes a rotating component, which is connected to the end of the first drive shaft away from the dual-axis motor, and a drive rod is connected to the rotating component, with the end of the drive rod away from the rotating component hinged to the piston.
[0008] As a further embodiment of this utility model: the rotating component is a turntable, and the turntable is eccentrically connected to the drive rod.
[0009] As a further embodiment of this utility model: both the first connecting pipe and the second connecting pipe are retractable flexible hoses.
[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: During use, the dual-axis motor drives the connected first and second drive shafts to rotate. The rotation of the first drive shaft drives the stirring rod to rotate, thereby stirring the ink in the housing and ensuring uniform ink mixing. When flexographic printing is required on materials of different thicknesses, the distance between the adjusting roller and the fixed roller needs to be adjusted. The second drive shaft drives the threaded rod to rotate, and the rotation of the threaded rod, under the action of the thread, moves the adjusting block connected to it. The movement of the adjusting block, through the movable rod, drives the adjusting rods at both ends of the adjusting plate to rotate. The adjusting rod drives the adjusting roller at one end to rotate, thereby adjusting the distance between the adjusting roller and the fixed roller. At the same time, it can also adjust the pressing force of the adjusting roller on the object placed between the adjusting roller and the fixed roller, improving the applicability of the device. The rotation of the first drive shaft drives the turntable to rotate. The rotation of the turntable drives the piston connected to it to slide back and forth in the conveying chamber through the drive rod. When a negative pressure is generated in the conveying chamber, the printing ink in the housing is sucked into the conveying chamber through the first connecting pipe. Then, the ink is conveyed to the inking chamber through the second connecting pipe by the piston's compression, thereby inking the adjusting roller on one side and ensuring the quality of flexographic printing. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of a self-adhesive backing paper flexographic printing mechanism.
[0012] Figure 2 This is a schematic diagram of a self-adhesive backing paper flexographic printing mechanism from another angle.
[0013] Figure 3 This is a schematic diagram of the stirring rod in a self-adhesive backing paper flexographic printing mechanism.
[0014] In the diagram: 1. Mounting plate; 2. Connecting rod; 3. Housing; 4. Mounting rod; 5. Fixed roller; 6. Adjusting roller; 7. Adjusting rod; 8. Movable rod; 9. Adjusting block; 10. Adjusting groove; 11. Piston; 12. Threaded rod; 13. Dual-axis motor; 14. First drive shaft; 15. Rotating component; 16. Drive rod; 17. Conveying chamber; 18. First connecting pipe; 19. Support rod; 20. Second connecting pipe; 21. Inking chamber; 23. Stirring rod. Detailed Implementation
[0015] 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, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0016] Please see Figures 1-3 As an embodiment of this utility model, a self-adhesive backing paper flexographic printing mechanism includes a mounting plate 1, a connecting rod 2 mounted on the mounting plate 1, a housing 3 mounted on the end of the connecting rod 2 away from the mounting plate 1, a stirring rod 23 disposed in the housing 3, a dual-axis motor 13 mounted on the mounting plate 1, a first drive shaft 14 and a second drive shaft mounted on the output end of the dual-axis motor 13, the end of the first drive shaft 14 away from the dual-axis motor 13 passing through the housing 3, and the stirring rod 23 mounted on the first drive shaft 14, a sliding groove provided on the mounting plate 1, a slider slidably mounted in the sliding groove, a mounting rod 4 mounted on the mounting plate 1, a fixed roller 5 mounted on the end of the mounting rod 4 away from the mounting plate 1, an adjusting rod 7 hinged to one side of the mounting plate 1, the adjusting rods 7 being symmetrically arranged, an adjusting plate connecting the adjusting rods 7, and an adjusting roller 6 connected to the end of the adjusting rod 7 away from the mounting plate 1. An ink filling chamber 21 is provided on one side of the adjusting roller 6, and the ink filling chamber 21 is in contact with the surface of the adjusting roller 6. An adjusting assembly is installed on the mounting plate 1, and the adjusting assembly is connected to the second drive shaft. A support rod 19 is installed on the housing 3, and a conveying chamber 17 is installed at the end of the support rod 19 away from the housing 3. A first connecting pipe 18 and a second connecting pipe 20 are connected to the conveying chamber 17. The end of the first connecting pipe 18 away from the conveying chamber 17 is connected to the housing 3, and the end of the second connecting pipe 20 away from the conveying chamber 17 is connected to the ink filling chamber 21. A one-way valve is installed on both the first connecting pipe 18 and the second connecting pipe 20. Both the first connecting pipe 18 and the second connecting pipe 20 are retractable hoses. A piston 11 is slidably installed in the conveying chamber 17. A transmission assembly is installed on the first drive shaft 14, and the end of the transmission assembly away from the first drive shaft 14 is connected to the piston 11.
[0017] In this embodiment, during use, the dual-axis motor 13 drives the connected first drive shaft 14 and second drive shaft to rotate. The rotation of the first drive shaft 14 drives the stirring rod 23 to rotate, thereby stirring the ink in the housing 3 and making the ink uniformly mixed. When flexographic printing is required on materials of different thicknesses, the distance between the adjusting roller 6 and the fixed roller 5 needs to be adjusted. The second drive shaft drives the adjusting assembly to operate, and the adjusting assembly drives the adjusting block 9 to move. The movement of the adjusting block 9 drives the adjusting rods 7 at both ends of the adjusting plate to rotate via the movable rod 8. The adjusting rods 7 drive the adjusting rods at one end to rotate. The rotation of roller 6 allows adjustment of the distance between the adjusting roller 6 and the fixed roller 5, and also adjusts the pressure exerted by the adjusting roller 6 on the object positioned between the adjusting roller 6 and the fixed roller 5. The rotation of the first drive shaft 14 also drives the transmission assembly to operate. The transmission assembly drives the piston 11 to slide back and forth in the conveying chamber 17. When a negative pressure is generated in the conveying chamber 17, the printing ink in the housing 3 is drawn into the conveying chamber 17 through the first connecting pipe 18. Then, the ink is squeezed by the piston 11 and conveyed to the inking chamber 21 through the second connecting pipe 20, thereby inking one side of the adjusting roller 6 and ensuring the quality of flexographic printing.
[0018] As an embodiment of this utility model, the adjustment component includes an adjustment groove 10. An adjustment groove 10 is provided on the mounting plate 1. An adjustment block 9 is slidably installed in the adjustment groove 10. A movable rod 8 is hinged to the adjustment block 9. The end of the movable rod 8 away from the adjustment block 9 is hinged to the adjustment plate. A threaded rod 12 is installed on the end of the second drive shaft away from the dual-axis motor 13. The end of the threaded rod 12 away from the second drive shaft is rotatably connected to the bottom wall of the adjustment groove 10. The threaded rod 12 and the adjustment block 9 are connected by threads.
[0019] In this embodiment, when flexographic printing is required on materials of different thicknesses, the distance between the adjusting roller 6 and the fixed roller 5 needs to be adjusted. The second drive shaft drives the threaded rod 12 to rotate. The rotation of the threaded rod 12 drives the adjusting block 9 connected to it to move under the action of the thread. The movement of the adjusting block 9 drives the adjusting rods 7 at both ends of the adjusting plate to rotate through the movable rod 8. The adjusting rod 7 drives the adjusting roller 6 at one end to rotate, thereby adjusting the distance between the adjusting roller 6 and the fixed roller 5. At the same time, the pressing force of the adjusting roller 6 on the object set between the adjusting roller 6 and the fixed roller 5 can be adjusted, improving the applicability of the device.
[0020] As an embodiment of the present invention, the transmission assembly includes a rotating component 15, which is connected to the end of the first drive shaft 14 away from the dual-axis motor 13. A drive rod 16 is connected to the rotating component 15, and the end of the drive rod 16 away from the rotating component 15 is hinged to the piston 11. The rotating component 15 is a turntable, and the turntable is eccentrically rotatably connected to the drive rod 16.
[0021] In this embodiment, the rotation of the first drive shaft 14 drives the turntable to rotate. The rotation of the turntable drives the piston 11 connected to it to slide back and forth in the conveying chamber 17 via the drive rod 16. When a negative pressure is generated in the conveying chamber 17, the printing ink in the housing 3 is sucked into the conveying chamber 17 through the first connecting pipe 18. Then, the ink is conveyed to the ink filling chamber 21 through the second connecting pipe 20 by the compression of the piston 11, so that the adjusting roller 6 on one side can be inked to ensure the quality of flexographic printing.
[0022] The working principle of this utility model is as follows: During use, the dual-axis motor 13 drives the connected first drive shaft 14 and second drive shaft to rotate. The rotation of the first drive shaft 14 drives the stirring rod 23 to rotate, thereby stirring the ink in the housing 3 and ensuring uniform ink mixing. When flexographic printing is required on materials of different thicknesses, the distance between the adjusting roller 6 and the fixed roller 5 needs to be adjusted. The second drive shaft drives the threaded rod 12 to rotate. The rotation of the threaded rod 12, under the action of the thread, drives the adjusting block 9 connected to it to move. The movement of the adjusting block 9 drives the adjusting rods 7 at both ends of the adjusting plate to rotate via the movable rod 8. The adjusting rods 7 drive one end of the adjusting plate to rotate. The adjustment roller 6 rotates, thereby adjusting the distance between the adjustment roller 6 and the fixed roller 5. At the same time, it can adjust the pressing force of the adjustment roller 6 on the object placed between the adjustment roller 6 and the fixed roller 5, improving the applicability of the device. The rotation of the first drive shaft 14 drives the turntable to rotate. The rotation of the turntable drives the piston 11 connected to it to slide back and forth in the conveying chamber 17 through the drive rod 16. When a negative pressure is generated in the conveying chamber 17, the printing ink in the housing 3 is sucked into the conveying chamber 17 through the first connecting pipe 18. Then, the ink is squeezed by the piston 11 and conveyed to the ink filling chamber 21 through the second connecting pipe 20. This allows the adjustment roller 6 on one side to be inked, ensuring the quality of flexographic printing.
[0023] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0024] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A self-adhesive backing paper flexographic printing mechanism, comprising a mounting plate, characterized in that, A connecting rod is mounted on the mounting plate. A housing is mounted on the end of the connecting rod away from the mounting plate, and a stirring rod is housed within the housing. A dual-shaft motor is mounted on the mounting plate, and a first drive shaft and a second drive shaft are mounted on the output end of the dual-shaft motor. The end of the first drive shaft away from the dual-shaft motor passes through the housing, and the stirring rod is mounted on the first drive shaft. A sliding groove is formed on the mounting plate, and a slider is slidably mounted in the groove. A mounting rod is mounted on the mounting plate, and a fixed roller is mounted on the end of the mounting rod away from the mounting plate. An adjusting rod is hinged to one side of the mounting plate. The adjusting rods are symmetrically arranged, and an adjusting plate connects the adjusting rods. An adjusting roller is connected to the end of the adjusting rod away from the mounting plate. An ink filling chamber is provided on one side of the adjusting roller, and the ink filling chamber is in contact with the surface of the adjusting roller. An adjusting assembly is installed on the mounting plate, and the adjusting assembly is connected to the second drive shaft. A support rod is installed on the housing, and a conveying chamber is installed at the end of the support rod away from the housing. A first connecting pipe and a second connecting pipe are connected to the conveying chamber. The end of the first connecting pipe away from the conveying chamber is connected to the housing, and the end of the second connecting pipe away from the conveying chamber is connected to the ink filling chamber. A one-way valve is installed on both the first and second connecting pipes. A piston is slidably installed in the conveying chamber. A transmission assembly is installed on the first drive shaft, and the end of the transmission assembly away from the first drive shaft is connected to the piston.
2. The self-adhesive backing paper flexographic printing mechanism according to claim 1, characterized in that, The adjustment assembly includes an adjustment groove. An adjustment groove is provided on the mounting plate. An adjustment block is slidably installed in the adjustment groove. A movable rod is hinged to the adjustment block. The end of the movable rod away from the adjustment block is hinged to the adjustment plate. A threaded rod is installed on the end of the second drive shaft away from the dual-axis motor. The end of the threaded rod away from the second drive shaft is rotatably connected to the bottom wall of the adjustment groove. The threaded rod and the adjustment block are connected by threads.
3. The self-adhesive backing paper flexographic printing mechanism according to claim 1, characterized in that, The transmission assembly includes a rotating component, which is connected to the end of the first drive shaft away from the dual-axis motor. A drive rod is connected to the rotating component, and the end of the drive rod away from the rotating component is hinged to a piston.
4. The self-adhesive backing paper flexographic printing mechanism according to claim 3, characterized in that, The rotating component is a turntable, which is eccentrically connected to the drive rod.
5. The self-adhesive backing paper flexographic printing mechanism according to claim 1, characterized in that, Both the first connecting pipe and the second connecting pipe are retractable flexible hoses.