An inkjet printing apparatus with a glosser mechanism
By introducing an oil replenishment component and a limiting structure into the inkjet printing equipment, the problems of downtime and uneven coating caused by manual oil replenishment have been solved, achieving a stable supply of varnish and improved printing quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIASHAN HAOTIAN COLOR PRINTING PACKAGE CO LTD
- Filing Date
- 2025-07-15
- Publication Date
- 2026-06-05
AI Technical Summary
In existing inkjet printing equipment, manual ink replenishment requires frequent machine shutdowns, affecting production efficiency. Uneven coating and difficulty in controlling the amount of ink replenishment lead to a decline in print quality.
An inkjet printing device with an oil replenishment component was designed. The device uses an elliptical cam to periodically squeeze the piston plate to achieve automatic intermittent oil replenishment in the oil tank, ensuring that the oil suction roller is in contact with the oil. Combined with a limiting component, the liquid output is adjusted to achieve a stable supply of varnish.
It ensures a continuous supply of varnish, improves printing quality and production efficiency, and guarantees the stability and flexibility of coating effects to adapt to different printing needs.
Smart Images
Figure CN224323751U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of inkjet printing technology, and in particular to an inkjet printing device with a varnishing mechanism. Background Technology
[0002] In the field of inkjet printing technology, inkjet printing equipment with a varnishing mechanism is a device that integrates inkjet printing and varnishing functions. Its working process involves first inkjet printing patterns or text onto the printing material using an inkjet unit, and then applying a layer of varnish, typically UV varnish, to the surface of the inkjet-printed product using the varnishing mechanism. The varnishing mechanism generally includes components such as an absorption roller, a transfer roller, an application roller, and a UV varnish tank. These components work together to evenly coat the UV varnish onto the surface of the printed product. Finally, the product is cured by a UV curing lamp, forming a UV varnish layer that provides both protection and decoration. This equipment effectively combines inkjet printing and varnishing processes, aiming to improve the quality and appearance of printed products.
[0003] A search revealed Chinese Patent Publication No. CN218558331U, which discloses an inkjet printing device with a varnishing mechanism. The device includes a frame with support legs at its bottom. A four-color inkjet assembly and a UV curing lamp are mounted on the frame. A varnishing assembly is also mounted on the frame, positioned between the four-color inkjet assembly and the UV curing lamp. The varnishing assembly includes a housing, on which are mounted an oil-absorbing roller, a guide roller, an oil-applying roller, and a UV varnish tank. The oil-absorbing roller is located within the UV varnish tank. The guide roller is located between the oil-absorbing roller and the oil-applying roller, and abuts against both rollers. A bracket is mounted on the oil-absorbing roller, and a fine-tuning mechanism for adjusting the bracket is mounted on the housing. This invention adapts to the working conditions of the oil-applying roller by adjusting the pressure between the oil-absorbing roller and the guide roller until the desired performance is achieved. The operation is simple and quick, and the fine-tuning precision is high.
[0004] Manual inkjet printing requires frequent shutdowns, disrupting the printing process and impacting production efficiency. Furthermore, the timing of ink replenishment depends on operator experience; if not replenished promptly, the suction roller may detach from the ink supply and fail to properly absorb the varnish, resulting in uneven coating, missed areas, and other problems that severely affect print quality. In addition, manual operation makes it difficult to precisely control the amount of ink replenished, potentially leading to excessive overflow or insufficient supply in the ink reservoir, further reducing equipment stability. Therefore, this paper proposes an inkjet printing device with an integrated varnishing mechanism to address these issues. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides an inkjet printing device with a varnishing mechanism, which aims to improve the problems of manual varnishing requiring machine shutdown, low efficiency, uneven coating, and difficulty in controlling the amount of varnish in the prior art.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: an inkjet printing device with a varnishing mechanism, including a mounting frame, a conveyor belt fixedly mounted on the inner wall of the mounting frame, a connecting block fixedly connected to the right side of the mounting frame, an oil storage tank opened on the top of the connecting block, a guide roller and an oiling roller respectively arranged on the mounting frame, and an oil suction roller arranged on the connecting block.
[0007] The connecting block is equipped with an oil replenishment assembly, which includes an oil reservoir. A movable rod is movably connected to the top of the oil reservoir, and a pressure plate is fixedly connected to the top of the movable rod. Both the pressure plate and the movable rod are elastically connected to the top of the oil reservoir via springs. A piston plate is fixedly connected to the bottom of the movable rod, and the edge of the piston plate is in sealed contact with the inner wall of the oil reservoir. An extension plate is fixedly connected to the top of the connecting block, and a cylinder is fixedly connected to the back of the extension plate. A moving rod is in contact with the inner wall of the cylinder, and an elliptical cam is fixedly connected to the surface of the moving rod. The surface of the elliptical cam abuts against the top of the pressure plate. An injection pipe is fixedly connected to the bottom of the oil reservoir via a one-way valve. The top of the injection pipe is connected to the top of the oil reservoir, and the bottom of the injection pipe is connected to the interior of the oil storage tank. The oil suction roller and the back of the cylinder are connected via a pulley and belt drive. A limit assembly is provided between the cylinder and the moving rod.
[0008] As a further description of the above technical solution: the limiting component includes a sliding groove A, which is formed on the inner wall of the cylinder. The surface of the moving rod is slidably connected to the sliding groove A formed on the inner wall of the cylinder through a limiting strip. The outer wall of the cylinder is provided with a threaded hole A, and the surface of the moving rod is provided with a threaded groove A. The inner wall of the threaded hole A and the threaded groove A are threadedly connected with a bolt A.
[0009] As a further description of the above technical solution: a transmission assembly is provided between the oil suction roller, the guide roller, and the oil application roller. The transmission assembly includes a motor, which is fixedly installed on the front side of the connecting block. The oil suction roller is rotatably connected through the inner wall of the oil storage tank. The output shaft of the motor is fixedly connected to the front side of the oil suction roller. The guide roller and the oil application roller are rotatably connected through the inner wall of the mounting frame via bearings. Gear A is fixedly connected to the back side of the oil suction roller. Gear C is fixedly connected to the back side of the guide roller. Gear B is fixedly connected to the back side of the oil application roller. Gear C meshes with the left side of gear A, and gear B meshes with the left side of gear C.
[0010] As a further description of the above technical solution: the front of the movable rod is rotatably connected to an L-shaped plate via a bearing, the top of the connecting block is provided with a sliding groove B, and the bottom of the L-shaped plate is slidably connected to the inner wall of the sliding groove via a slider.
[0011] As a further description of the above technical solution: the elliptical cam is provided in multiple sets, and the multiple sets of elliptical cams are symmetrically arranged at equal intervals.
[0012] As a further description of the above technical solution: the top of the connecting block is provided with a threaded hole B, the number of threaded holes B is the same as that of the elliptical cam, the top of the slider is provided with a threaded groove B, and the threaded groove B is threadedly connected to the inner wall of the threaded hole B with a bolt B.
[0013] As a further description of the above technical solution: the top end of the spring is fixedly connected to the bottom end of the pressure plate, and the bottom end of the spring is fixedly connected to the top end of the oil reservoir.
[0014] As a further description of the above technical solution: the top of the oil storage tank is provided with an oil filling hole, and the inner wall of the oil filling hole is sealed with a sealing plug.
[0015] This utility model has the following beneficial effects:
[0016] 1. In this utility model, by setting up an oil replenishment component, the piston plate is reciprocated up and down in the oil storage tank by periodically squeezing the pressure plate with an elliptical cam, and the oil is pressed into the oil storage tank through the injection pipe. The oil is automatically and intermittently replenished to ensure that the oil suction roller is always in contact with the oil, maintain a continuous supply of varnish, ensure a stable and uninterrupted varnish coating process for inkjet printed products, and improve the coating effect and printing quality.
[0017] 2. In this utility model, by using the limiting components and related structures, the bolts A and B can be turned to easily replace the elliptical cams of different sizes and adjust the intermittent liquid output. The moving rod, through the L-shaped plate, the slider and the slide groove B, maintains rotational stability during the adjustment process, enabling the equipment to adapt to different printing needs and improve its flexibility and adaptability. Attached Figure Description
[0018] Figure 1 The front view of an inkjet printing device with a varnishing mechanism proposed in this utility model;
[0019] Figure 2 Rear view of an inkjet printing device with a varnishing mechanism proposed in this utility model;
[0020] Figure 3 This is a front sectional view of the connecting block of an inkjet printing device with a varnishing mechanism proposed in this utility model.
[0021] Figure 4 A side sectional view of the oil reservoir of an inkjet printing device with a varnishing mechanism proposed in this utility model.
[0022] Figure 5This is a cross-sectional schematic diagram of the cylinder of an inkjet printing device with a varnishing mechanism proposed in this utility model.
[0023] Legend:
[0024] 1. Mounting frame; 2. Conveyor belt; 3. Connecting block; 4. Motor; 5. Oil suction roller; 6. Guide roller; 7. Oiling roller; 8. Gear A; 9. Gear B; 10. Gear C; 11. Extension plate; 12. Oil storage tank; 13. Oil storage trough; 14. Slide groove B; 15. Threaded hole B; 16. Cylinder body; 17. Elliptical cam; 18. Piston plate; 19. Movable rod; 20. Pressure plate; 21. Slider; 22. Moving rod; 23. Bolt A; 24. Threaded groove A. Detailed Implementation
[0025] 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.
[0026] Reference Figure 1 , Figure 2 This utility model provides an embodiment of an inkjet printing device with a varnishing mechanism, including a mounting frame 1, which serves as the support structure for the entire device. A conveyor belt 2 is fixedly installed on the inner wall of the mounting frame 1. The conveyor belt 2 is used to carry and transport inkjet printed products. A connecting block 3 is fixedly connected to the right side of the mounting frame 1. The connecting block 3 is used to connect and support other components. An oil storage tank 13 is opened on the top of the connecting block 3. The oil storage tank 13 is used to store varnish. A guide roller 6 and an oiling roller 7 are respectively arranged on the mounting frame 1. The guide roller 6 is used to conduct the oil on the suction roller 5 to the oiling roller 7. The oiling roller 7 is used to evenly coat the oil on the surface of the printed products. An suction roller 5 is arranged on the connecting block 3. The suction roller 5 is used to absorb oil from the oil storage tank 13.
[0027] Reference Figures 1-3A transmission assembly is provided between the oil suction roller 5, the guide roller 6, and the oil loading roller 7. The transmission assembly is used to realize the linkage between the rollers. The transmission assembly includes a motor 4, which provides rotational power as a power source. The motor 4 is fixedly installed on the front of the connecting block 3. The oil suction roller 5 is rotatably connected through the inner wall of the oil storage tank 13. The output shaft of the motor 4 is fixedly connected to the front of the oil suction roller 5. The guide roller 6 and the oil loading roller 7 are rotatably connected through the inner wall of the mounting frame 1 via bearings. Gear A8 is fixedly connected to the back of the oil suction roller 5. Gear A8 is used to transmit power. Gear C10 is fixedly connected to the back of the guide roller 6. Gear C10 is used to mesh with gear A8 and gear B9 to transmit power. Gear B9 is fixedly connected to the back of the oil loading roller 7. Gear B9 is used to mesh with gear C10 to realize the rotation of the oil loading roller 7. Gear C10 is meshed on the left side of gear A8, and gear B9 is meshed on the left side of gear C10.
[0028] Reference Figure 3 , Figure 4 The connecting block 3 is equipped with an oil replenishment component, which is used to automatically replenish the oil in the oil storage tank 13. The oil replenishment component includes an oil storage tank 12, which is used to store the varnish to be replenished. The top of the oil storage tank 12 has an oil injection hole for injecting oil into the oil storage tank 12. The inner wall of the oil injection hole is sealed with a sealing plug to prevent oil leakage and dust from entering. A movable rod 19 is movably connected through the top of the oil storage tank 12. The movable rod 19 is used to drive the piston plate 18 to move up and down. A pressure plate 20 is fixedly connected to the end of the oil reservoir 12. The pressure plate 20 is used to receive the squeezing force of the elliptical cam 17. The pressure plate 20 and the movable rod 19 are both elastically connected to the top of the oil reservoir 12 through springs. The springs are used to provide elastic restoring force. The top end of the spring is fixedly connected to the bottom of the pressure plate 20, and the bottom end of the spring is fixedly connected to the top of the oil reservoir 12. A piston plate 18 is fixedly connected to the bottom end of the movable rod 19. The piston plate 18 is used to move up and down in the oil reservoir 12 to realize the squeezing and suction of the oil. The edge of the piston plate 18 is in sealed contact with the inner wall of the oil reservoir 12.
[0029] Reference Figure 4 , Figure 5An extension plate 11 is fixedly connected to the top of the connecting block 3. The extension plate 11 supports the cylinder body 16. The cylinder body 16 is fixedly and through-connected to the back of the extension plate 11. The cylinder body 16 accommodates and supports the moving rod 22. The moving rod 22 contacts the inner wall of the cylinder body 16. The moving rod 22 drives the elliptical cam 17 to rotate and move. The elliptical cam 17 is fixedly connected to the surface of the moving rod 22. The elliptical cam 17 is used to periodically press the pressure plate 20. Multiple sets of elliptical cams 17 are provided. Cams 17 are symmetrically arranged at equal intervals. The surface of the elliptical cam 17 abuts against the top of the pressure plate 20. The bottom of the oil storage tank 12 is fixedly connected to an injection pipe through a one-way valve. The injection pipe is used to transport the oil in the oil storage tank 12 to the oil storage tank 13. The top end of the injection pipe is connected to the top of the oil storage tank 12. The back of the oil suction roller 5 and the cylinder body 16 are connected by a pulley and belt drive. The bottom end of the injection pipe is connected to the inside of the oil storage tank 13. A limit component is provided between the cylinder body 16 and the moving rod 22.
[0030] Reference Figure 5 The limiting component includes a slide groove A, which is used to limit the movement direction of the moving rod 22. The slide groove A is opened on the inner wall of the cylinder body 16. The surface of the moving rod 22 is slidably connected to the slide groove A opened on the inner wall of the cylinder body 16 through a limiting strip. The outer wall of the cylinder body 16 is provided with a threaded hole A, which is used to install a bolt A23 to fix the moving rod 22. The surface of the moving rod 22 is provided with a threaded groove A24, which is used to cooperate with the bolt A23 to lock the position of the moving rod 22. The inner wall of the threaded hole A and the threaded groove A24 are threadedly connected with the bolt A23.
[0031] Reference Figure 3 , Figure 4 An L-shaped plate is rotatably connected to the front of the moving rod 22 via a bearing. The L-shaped plate supports the moving rod 22 and ensures its stable rotation. A groove B14 is provided on the top of the connecting block 3. The groove B14 guides the movement direction of the L-shaped plate. The bottom of the L-shaped plate is slidably connected to the inner wall of the groove via a slider 21. Both the groove B14 and the slider 21 are "T" shaped. The "T" shaped structure prevents the L-shaped plate from disengaging from the groove B14. A threaded hole B15 is provided on the top of the connecting block 3. The threaded hole B15 is used to install bolts B to fix the L-shaped plate. The number of threaded holes B15 is the same as that of the elliptical cam 17. A threaded groove B is provided on the top of the slider 21. The threaded groove B cooperates with the bolt B to lock the position of the L-shaped plate. The threaded groove B is threadedly connected to the inner wall of the threaded hole B15 with bolts B.
[0032] Working principle: Before use, first inject varnish into the oil reservoir 12 through the oil filling hole at the top of the oil reservoir 12 and open the sealing plug. After injection, tighten the sealing plug. If it is necessary to adjust the amount of oil added intermittently, unscrew bolts A23 and B in sequence to release the limit of the moving rod 22 in the cylinder 16. Pull the moving rod 22 so that the thread groove A24 corresponding to the moving rod 22 is aligned with the threaded hole A in the cylinder 16. After replacing the elliptical cam 17 of different sizes, lock the moving rod 22 in the cylinder 16 with bolt A23. At the same time, the L-shaped plate moves with the moving rod 22, and its bottom slider 21 slides in the groove B14 at the top of the connecting block 3. When the thread groove B at the top of the L-shaped block moves to the corresponding threaded hole B15, lock it with bolt B to limit the position of the L-shaped plate. This ensures that when one end of the moving rod 22 rotates with the cylinder 16, the other end rotates stably on the back of the L-shaped plate, thereby improving the stability of the cylinder 16 and the moving rod 22 during rotation.
[0033] In operation, the inkjet-printed product is placed on conveyor belt 2, and conveyor belt 2 is started to transport the printed product. Then, motor 4 is started, and the output shaft of motor 4 drives the suction roller 5 to rotate. Gear A8, fixedly connected to the back of suction roller 5, meshes with gear C10 on the back of guide roller 6, thereby driving guide roller 6 to rotate. During the rotation of guide roller 6, gear C10 meshes with gear B9 on the back of oiling roller 7, thus driving oiling roller 7 to rotate. In this transmission process, suction roller 5 rotates and absorbs varnish in oil storage tank 13, then transfers the absorbed oil to guide roller 6, which then transfers the oil to oiling roller 7. Finally, oiling roller 7 evenly coats the inkjet-printed product surface with varnish, completing the varnish coating operation.
[0034] While the oil suction roller 5 rotates, the cylinder 16 rotates via a pulley and belt drive. Since the moving rod 22 is slidably connected to the groove A on the inner wall of the cylinder 16 via a limiting strip, the cylinder 16 drives the moving rod 22 to rotate synchronously. Multiple sets of symmetrically arranged elliptical cams 17, fixedly connected to the surface of the moving rod 22, rotate accordingly. When the elliptical cam 17 rotates to a specific position, its surface presses against the pressure plate 20. The pressure plate 20 drives the movable rod 19 and piston plate 18 downwards, simultaneously compressing the spring. When the elliptical cam 17 rotates to other positions, the pressure on the pressure plate 20 disappears. Under the elastic action of the spring, the pressure plate 20 drives the movable rod 19 and piston plate 18 upwards, thus achieving the reciprocating motion of the piston plate 18. The up-and-down movement of the piston plate 18 pushes the varnish inside the oil tank 12 through the injection pipe into the lower oil storage tank 13. Since the injection pipe is equipped with a one-way valve, it can effectively prevent the oil from flowing back, thereby achieving the function of intermittently adding oil into the oil storage tank 13, ensuring that the oil suction roller 5 is always in contact with the oil in the oil storage tank 13, ensuring a continuous supply of varnish, and meeting the varnish coating requirements of inkjet printed products.
[0035] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. An inkjet printing device with a varnishing mechanism, comprising a mounting frame (1), characterized in that: The inner wall of the mounting frame (1) is fixedly installed with a conveyor belt (2), and a connecting block (3) is fixedly connected to the right side of the mounting frame (1). An oil storage tank (13) is opened on the top of the connecting block (3). A guide roller (6) and an oil roller (7) are respectively provided on the mounting frame (1), and an oil suction roller (5) is provided on the connecting block (3). An oil replenishment assembly is provided on the connecting block (3). The oil replenishment assembly includes an oil storage tank (12). A movable rod (19) is movably connected to the top of the oil storage tank (12). A pressure plate (20) is fixedly connected to the top of the movable rod (19). The pressure plate (20) and the movable rod (19) are elastically connected to the top of the oil storage tank (12) by springs. A piston plate (18) is fixedly connected to the bottom of the movable rod (19). The edge of the piston plate (18) is in sealed contact with the inner wall of the oil storage tank (12). An extension plate (11) is fixedly connected to the top of the connecting block (3). The back of the extension plate (11) is fixedly connected to the extension plate (11). A cylinder (16) is fixedly connected through it. The inner wall of the cylinder (16) contacts a moving rod (22). An elliptical cam (17) is fixedly connected to the surface of the moving rod (22). The surface of the elliptical cam (17) abuts against the top of the pressure plate (20). The bottom of the oil tank (12) is fixedly connected to an injection pipe through a one-way valve. The top end of the injection pipe is connected to the top of the oil tank (12). The bottom end of the injection pipe is connected to the inside of the oil storage tank (13). The back of the oil suction roller (5) and the cylinder (16) are connected by a pulley and belt drive. A limit assembly is provided between the cylinder (16) and the moving rod (22).
2. The inkjet printing equipment with a varnishing mechanism according to claim 1, characterized in that: The limiting component includes a sliding groove A, which is opened on the inner wall of the cylinder (16). The surface of the moving rod (22) is slidably connected to the sliding groove A opened on the inner wall of the cylinder (16) through a limiting strip. The outer wall of the cylinder (16) is provided with a threaded hole A, and the surface of the moving rod (22) is provided with a threaded groove A (24). The threaded hole A and the inner wall of the threaded groove A (24) are threadedly connected with a bolt A (23).
3. The inkjet printing equipment with a varnishing mechanism according to claim 1, characterized in that: A transmission assembly is provided between the oil suction roller (5), the guide roller (6), and the oiling roller (7). The transmission assembly includes a motor (4), which is fixedly installed on the front of the connecting block (3). The inner wall of the oil storage tank (13) is rotatably connected to the oil suction roller (5). The output shaft of the motor (4) is fixedly connected to the front of the oil suction roller (5). The inner wall of the mounting frame (1) is rotatably connected to the guide roller (6) and the oiling roller (7) through a bearing. The back of the oil suction roller (5) is fixedly connected to a gear A (8). The back of the guide roller (6) is fixedly connected to a gear C (10). The back of the oiling roller (7) is fixedly connected to a gear B (9). The left side of the gear A (8) is meshed with the gear C (10), and the left side of the gear C (10) is meshed with the gear B (9).
4. The inkjet printing equipment with a varnishing mechanism according to claim 1, characterized in that: The front of the movable rod (22) is rotatably connected to an L-shaped plate via a bearing. The top of the connecting block (3) is provided with a sliding groove B (14). The bottom of the L-shaped plate is slidably connected to the inner wall of the sliding groove via a slider (21).
5. The inkjet printing equipment with a varnishing mechanism according to claim 1, characterized in that: The elliptical cam (17) is provided in multiple sets, and the multiple sets of elliptical cams (17) are symmetrically arranged at equal intervals.
6. The inkjet printing equipment with a varnishing mechanism according to claim 4, characterized in that: The top of the connecting block (3) is provided with a threaded hole B (15), and the number of threaded holes B (15) is the same as that of the elliptical cam (17). The top of the slider (21) is provided with a threaded groove B, and the threaded groove B is threadedly connected to the inner wall of the threaded hole B (15) with a bolt B.
7. An inkjet printing device with a varnishing mechanism according to claim 1, characterized in that: The top end of the spring is fixedly connected to the bottom of the pressure plate (20), and the bottom end of the spring is fixedly connected to the top of the oil tank (12).
8. The inkjet printing equipment with a varnishing mechanism according to claim 1, characterized in that: The top of the oil storage tank (12) is provided with an oil filling hole, and the inner wall of the oil filling hole is sealed with a sealing plug.