Watermarking machine positioning device
By combining the lifting module and the flipping mechanism, the problem of inaccurate positioning between the printing plate and the substrate in the watermarking machine is solved, and efficient contact between the printing plate and the ink cartridge is achieved, thus improving printing quality and efficiency.
Patent Information
- Application Number
- CN202520202532.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-10
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-02-10
AI Technical Summary
Existing watermarking machines suffer from insufficient alignment and unclear or inadequate ink application during the positioning process between the printing plate and the substrate.
The watermarking machine positioning device, which uses a lifting module and a flipping mechanism, achieves the lifting and flipping of the printing plate by driving the lead screw and guide rail with a servo motor. Combined with the meshing of the cylinder and rack and pinion gear, the energy storage of the spring is used to achieve efficient contact between the printing plate and the ink cartridge.
This technology enables efficient rotation of the printing plate during the lifting and lowering process, ensuring full contact between the printing plate and the ink cartridge, thereby improving printing quality and efficiency.
Smart Images

Figure CN223764008U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a positioning device for printing machinery, specifically a positioning device for a watermarking machine. Background Technology
[0002] A watermarking machine is a type of printing press. In the printing industry, "watermarking machine" usually refers to equipment used to print watermark patterns on paper or other materials. These watermarking machines mostly use water-based inks and achieve this through flexographic printing technology.
[0003] A printing press is a machine for printing text and images. A modern printing press generally consists of mechanisms for plate mounting, inking, printing, and paper feeding (including folding). Its working principle is as follows: First, the text and images to be printed are made into a printing plate, which is then mounted on the printing press. Ink is then applied manually or by the printing press to the areas on the printing plate containing the text and images. The ink is then directly or indirectly transferred to paper or other printing substrates (such as textiles, metal plates, plastics, leather, wood, glass, and ceramics), thus reproducing a printed product identical to the printing plate.
[0004] During the positioning process of a printing press, the printing plate needs to be aligned with the substrate for positioning. However, the existing positioning printing plate and ink pad have limitations such as insufficient fit and unclear or insufficient ink pad. Utility Model Content
[0005] The purpose of this invention is to provide a watermarking machine positioning device to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A watermarking machine positioning device includes a printing table, a printing plate holder fixedly mounted on the printing table, and a lifting module mounted above the printing plate holder.
[0008] A positioning mechanism is also provided above the printing plate holder. The positioning mechanism includes a printing plate component, which is movably positioned above the printing plate holder.
[0009] The printing plate is also provided with its own flipping mechanism, which includes a gear. The gear is fixedly connected to the printing plate and is used to drive the printing plate to rotate during the lifting and lowering process.
[0010] The watermarking machine positioning device described above includes a lifting module comprising a guide rail, a servo motor, a lead screw, and a slider. The guide rail is fixedly mounted on the printing table, the servo motor is fixedly mounted on the top of the guide rail, the lead screw is fixedly mounted on the output shaft of the guide rail, and the slider is threadedly connected to the lead screw and slidably connected to the guide rail.
[0011] As described above, the watermarking machine positioning device has a bracket fixedly mounted on the slider, the printing plate is rotatably mounted on the bracket, and the bracket and gear are rotatably connected.
[0012] The watermarking machine positioning device described above: the flipping mechanism further includes a cylinder and a rack, the cylinder is fixedly mounted on the bracket, the rack is fixedly mounted on the output end of the cylinder, and the rack and gear mesh.
[0013] As described above, the watermarking machine positioning device includes an ink cartridge fixedly mounted on the guide rail, and a sleeve fixedly mounted on the bottom of the ink cartridge.
[0014] As described above, the watermarking machine positioning device has a sliding rod slidably disposed inside the sleeve, and a spring is sleeved on the surface of the sliding rod, with the spring disposed inside the sleeve.
[0015] As described above, the positioning device for the watermarking machine has the top of the spring abutting against the top of the slide rod, and the bottom of the spring abutting against the bottom of the sleeve.
[0016] Compared with the prior art, the beneficial effects of this utility model are: by setting the lifting mechanism and the flipping mechanism of the printing plate, the lifting mechanism can flip the printing plate during the lifting process, so that the initially upward side of the printing plate can face the ink cartridge to receive the ink. After the ink is applied, during the downward process, the upward side is flipped by the flipping mechanism to face downward, so that the substrate can be printed, and the printing can be completed quickly.
[0017] This utility model also incorporates a sleeve, a slide bar, and a spring between the ink cartridge and the printing plate. When the printing plate is moving downwards, the spring is compressed inside the sleeve, allowing it to store a certain amount of elastic potential energy. When the printing plate begins to move upwards, the stored elastic potential energy, in conjunction with the flipping mechanism, causes the ink side of the printing plate to quickly come into contact with the ink cartridge, thereby improving the ink quality of the printing plate. Attached Figure Description
[0018] Figure 1 This is a three-dimensional schematic diagram of the overall structure of the watermarking machine positioning device.
[0019] Figure 2 This is a schematic diagram of another position in the positioning device of the watermarking machine.
[0020] Figure 3 This is a schematic diagram of the rack and gear structure in the positioning device of a watermarking machine.
[0021] Figure 4 This is a cross-sectional view of the sleeve and slide bar in the positioning device of a watermarking machine.
[0022] Figure 5This is a schematic diagram of the structure in the positioning device of a watermarking machine, showing the separation and removal of the slide bar and spring from the sleeve.
[0023] Figure 6 For the positioning device of the watermarking machine Figure 1 An enlarged schematic diagram of the structure.
[0024] Figure 7 For the positioning device of the watermarking machine Figure 2 An enlarged schematic diagram of the structure.
[0025] In the diagram: 1. Printing table; 2. Plate holder; 3. Guide rail; 4. Servo motor; 5. Lead screw; 6. Slider; 7. Support; 8. Printing plate; 9. Cylinder; 10. Rack; 11. Gear; 12. Ink cartridge; 13. Sleeve; 14. Slide bar; 15. Spring. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0027] Please see Figures 1-7 As an embodiment of the present utility model, the watermark machine positioning device includes a printing table 1, a printing plate frame 2 is fixedly installed on the printing table 1, and a lifting module is installed above the printing plate frame 2.
[0028] A positioning mechanism is also provided above the printing plate holder 2. The positioning mechanism includes a printing plate component 8, which is movably disposed above the printing plate holder 2.
[0029] The printing plate 8 is also provided with its own flipping mechanism, which includes a gear 11. The gear 11 is fixedly connected to the printing plate 8, and the gear 11 is used to drive the printing plate 8 to rotate during the lifting and lowering process.
[0030] In this embodiment, during operation, the machine initially lifts the printing plate 8 up and down using a lifting module, allowing the printing plate 8 to move. As the printing plate 8 moves downward, it is rotated by a flipping mechanism, allowing it to rotate during the lifting process. This allows the printing plate 8 to be printed with ink first and then printed. After printing is completed, it is flipped again so that the printing surface can be flipped up to print ink again, thus continuously completing the printing operation.
[0031] As a further embodiment of this utility model, the lifting module includes a guide rail 3, a servo motor 4, a lead screw 5, and a slider 6. The guide rail 3 is fixedly mounted on the printing table 1, the servo motor 4 is fixedly mounted on the top of the guide rail 3, the lead screw 5 is fixedly mounted on the output shaft of the guide rail 3, and the slider 6 is threadedly connected to the lead screw 5 and slidably connected to the guide rail 3.
[0032] In this embodiment, the servo motor 4 is started, which drives the lead screw 5 to rotate. The cooperation between the lead screw 5 and the guide rail 3 causes the slider 6 to move up and down, so that the slider 6 can run continuously on the guide rail 3.
[0033] The slider 6 is slidably connected to the guide rail 3, which restricts the rotation of the slider 6, so that the slider 6 can only move up and down on the lead screw 5.
[0034] As a further embodiment of this utility model, a bracket 7 is fixedly provided on the slider 6, the printing plate 8 is rotatably mounted on the bracket 7, and the bracket 7 and the gear 11 are rotatably connected.
[0035] In this embodiment, the slider 6 and the bracket 7 are fixed together by bolts, so that the bracket 7 also moves up and down with the slider 6. The printing plate 8 is rotatably mounted on the bracket 7, that is, when the bracket 7 is raised and lowered, the printing plate 8 can also rotate.
[0036] As a further embodiment of this utility model, the flipping mechanism also includes a cylinder 9 and a rack 10. The cylinder 9 is fixedly mounted on the bracket 7, and the rack 10 is fixedly mounted on the output end of the cylinder 9, and the rack 10 meshes with the gear 11.
[0037] In this embodiment, a cylinder 9 is installed on the bracket 7. The cylinder 9 runs together with the bracket 7. During the operation of the bracket 7, the cylinder 9 starts to work and pushes the telescopic shaft outward, thereby causing the rack 10 to move forward. The rack 10 meshes with the gear 11, thereby driving the gear 11 to rotate. While the gear 11 is rotating, it will drive the printing plate 8 to flip. The printing plate 8 can also flip during the lifting and lowering process.
[0038] As a further embodiment of this utility model, an ink cartridge 12 is also fixedly mounted on the guide rail 3, and a sleeve 13 is fixedly mounted on the bottom of the ink cartridge 12.
[0039] In this embodiment, during printing, the lifting module initially moves the printing plate 8 upward, causing the top of the printing plate 8 to contact the bottom of the ink cartridge 12. This allows the top of the printing plate 8 to receive ink, increasing the printing quality. When printing on the paper on the printing plate holder 2, the side of the printing plate 8 with ink must be flipped downwards to print on the paper. This requires the use of a flipping mechanism. After the printing plate 8 has finished printing, the cylinder 9 starts to operate. The output shaft of the cylinder 9 pushes forward, causing the rack 10 to move forward. This meshes with the gear 11, causing the gear 11 to rotate. The gear 11 is fixedly connected to the printing plate 8, thus causing the printing plate 8 to flip, turning the upward-facing side to the bottom, thereby printing on the paper at the bottom.
[0040] As a further embodiment of this utility model, a slide rod 14 is slidably disposed inside the sleeve 13, and a spring 15 is sleeved on the surface of the slide rod 14, with the spring 15 disposed inside the sleeve 13.
[0041] In this embodiment, when the slider 6 moves the bracket 7 downward together, the top of the slide rod 14 inside the sleeve 13 will press the spring 15 downward, thereby compressing the spring 15 inside the sleeve 13 and storing elastic potential energy.
[0042] As a further embodiment of this utility model, the top of the spring 15 abuts against the top of the slide rod 14, and the bottom of the spring 15 abuts against the bottom of the sleeve 13.
[0043] In this embodiment, after the printing of the paper on the top of the printing plate holder 2 is completed, the cylinder 9 will drive the printing plate 8 to rotate again through the flipping mechanism. At this time, the elastic potential energy stored in the spring 15 will quickly push the flipped printing plate 8 onto the ink cartridge 12, so that the ink effect and quality of the printing plate 8 are better.
[0044] The above embodiments are exemplary and not restrictive. Therefore, without departing from the spirit or basic characteristics of this utility model, any technical solutions that can be implemented in other specific forms are included in this utility model.
Claims
1. A watermarker positioning device, characterized by, Said watermark machine positioning device includes a printing table (1), a printing plate frame (2) is fixedly arranged on the printing table (1), a lifting module is arranged above the printing plate frame (2); A positioning mechanism is further arranged above the printing plate frame (2), the positioning mechanism comprises a printing plate piece (8), the printing plate piece (8) is movably arranged above the printing plate frame (2); The printing plate piece (8) is further provided with a turnover mechanism, the turnover mechanism comprises a gear (11), the gear (11) is fixedly connected with the printing plate piece (8), and the gear (11) is used for driving the printing plate piece (8) to rotate during lifting of the printing plate piece (8).
2. A watermarker positioning device according to claim 1, wherein The lifting module comprises a guide rail (3), a servo motor (4), a lead screw (5) and a sliding block (6), the guide rail (3) is fixedly arranged on the printing table (1), the servo motor (4) is fixedly arranged at the top end of the guide rail (3), the lead screw (5) is fixedly arranged on the output shaft of the guide rail (3), the sliding block (6) is threadedly connected with the lead screw (5), and the sliding block (6) is slidably connected with the guide rail (3).
3. A watermarker positioning device according to claim 2, wherein, A support (7) is fixedly arranged on the sliding block (6), the printing plate piece (8) is rotatably arranged on the support (7), and the support (7) is rotatably connected with the gear (11).
4. A watermarker positioning device according to claim 3, wherein The turnover mechanism further comprises a cylinder (9) and a rack (10), the cylinder (9) is fixedly arranged on the support (7), the rack (10) is fixedly arranged on the output end of the cylinder (9), and the rack (10) is engaged with the gear (11).
5. A water-jet positioning apparatus as defined in claim 2, wherein An ink cartridge (12) is further fixedly arranged on the guide rail (3), and a sleeve (13) is fixedly arranged at the bottom of the ink cartridge (12).
6. A watermarker positioning device according to claim 5, wherein, A sliding rod (14) is slidably arranged in the sleeve (13), a spring (15) is sleeved on the surface of the sliding rod (14), and the spring (15) is arranged in the sleeve (13).
7. A water mark positioning device as claimed in claim 6, characterized in that The top of the spring (15) abuts against the top end of the sliding rod (14), and the bottom of the spring (15) abuts against the bottom of the sleeve (13).