Anti-pollution ink jet mechanism for cigarette pack code spraying
By designing an anti-pollution inkjet mechanism, the problems of ink splashing and dust pollution during the piezoelectric printhead coding process are solved using an anti-pollution cover and a negative pressure suction system, ensuring the cleanliness of the cigarette label surface and improving product quality.
Patent Information
- Application Number
- CN202520758657.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-21
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-04-21
AI Technical Summary
During the coding process, piezoelectric printheads can cause unclear coding due to ink splashes and external dust contamination, affecting the surface quality of cigarette labels.
An anti-pollution inkjet mechanism was designed, including a dirt cover, an air intake pipe, a filter frame, and an exhaust fan. It uses a negative pressure suction system to prevent ink splashing and external dust contamination, and uses activated carbon filtration to purify the surface of the cigarette label.
It effectively prevents ink splatter and external dust contamination, ensuring the cleanliness of the cigarette label surface and improving product quality.
Smart Images
Figure CN223835252U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of cigarette label inkjet printing technology, specifically to an anti-pollution inkjet printing mechanism for cigarette label inkjet printing. Background Technology
[0002] Cigarette label coding refers to the process of marking information on tobacco product packaging using inkjet printing technology. This information typically includes production date, batch number, anti-counterfeiting code, barcode, brand logo, etc., and is used for product traceability, anti-counterfeiting, market supervision, and consumer information identification. When coding cigarette labels, piezoelectric printheads are usually used. Piezoelectric printheads are an inkjet printing technology based on the piezoelectric effect. In the existing technology, during the coding process, piezoelectric printheads are prone to unclear coding and contamination of the cigarette label surface due to factors such as ink splashing and external dust pollution, which affects product quality. Therefore, an anti-contamination inkjet mechanism for cigarette label coding is proposed. Utility Model Content
[0003] The purpose of this application is to solve the technical problem that during the coding process of piezoelectric printheads, factors such as ink splashing and external dust pollution can easily lead to unclear coding, contamination of the cigarette label surface, and affect product quality. This application provides a pollution-resistant inkjet mechanism for cigarette label coding.
[0004] To achieve the above objectives, this application specifically adopts the following technical solution:
[0005] A pollution-resistant inkjet printing mechanism for cigarette label coding includes a fixed plate, on which a piezoelectric printhead, a pollution shield, and a fixed cylinder are mounted. The pollution shield is located outside the piezoelectric printhead and has an inkjet nozzle corresponding to the piezoelectric printhead. An air suction pipe communicating with the fixed cylinder is installed inside the pollution shield. A filter frame, a filter screen, and an exhaust fan are arranged sequentially on the fixed cylinder. The filter frame is filled with activated carbon particles.
[0006] Furthermore, the suction tube includes a connecting tube and a main tube that are connected together. The free end of the connecting tube is connected to a fixed cylinder. Multiple suction heads are connected to the main tube. The free end of each suction head is constructed in an outwardly expanding cone shape.
[0007] Furthermore, the fixed cylinder is provided with a first slot and a second slot, and the filter frame and filter screen are respectively inserted into the first slot and the second slot. The filter frame is constructed with a filling cavity, and a baffle is slidably arranged in the filling cavity, and activated carbon particles are filled in the filling cavity.
[0008] Furthermore, the anti-fouling cover has two symmetrically distributed protective covers hinged to it, and sealing gaskets are provided on the opposite sides of the two protective covers. The anti-fouling cover is provided with a driving component, which drives the two protective covers to rotate synchronously in opposite directions to form or remove the obstruction of the inkjet nozzle.
[0009] Furthermore, the driving component includes a drive rod rotatably mounted on the anti-fouling cover, and the anti-fouling cover is provided with a drive motor whose output shaft is connected to the drive rod. The hinge shaft of the protective cover is connected to the drive rod via a bevel gear pair.
[0010] Furthermore, the anti-fouling cover is provided with a through groove, a sealing component, and a cleaning component. The through groove is blocked or unblocked by the sealing component, and the piezoelectric nozzle is cleaned by the cleaning component.
[0011] Furthermore, the sealing component includes two sealing plates that are hinged within the anti-fouling cover and symmetrically distributed. Each of the two sealing plates has a sealing strip on its opposite side, and a torsion spring is provided between the sealing plate and the anti-fouling cover.
[0012] Furthermore, the cleaning component includes a fixed frame mounted on a dirt cover, a transverse plate slidably mounted on the fixed frame, the transverse plate abutting and overlapping with two sealing plates, a cleaning cotton block abutting and overlapping with a piezoelectric nozzle mounted on the transverse plate, and a cylinder push rod with its movable end connected to the transverse plate mounted on the fixed frame.
[0013] The beneficial effects of this application are as follows: When in use, the combination of the anti-fouling cover and the negative pressure suction can prevent ink splashing and external dust contamination, ensure the cleanliness of the cigarette label surface, and guarantee product quality, thus making it more practical. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural view of this application;
[0015] Figure 2 This is a three-dimensional sectional view of this application;
[0016] Figure 3 This application Figure 2 Enlarged view of point A in the middle;
[0017] Figure 4 This is a three-dimensional sectional view from another perspective of this application;
[0018] Figure 5 This application Figure 4 Enlarged view of point B in the middle;
[0019] Figure 6 This application Figure 4 Enlarged view of point C in the middle.
[0020] Reference numerals: 1. Fixing plate; 2. Piezoelectric printhead; 3. Anti-fouling cover; 4. Fixing cylinder; 5. Inkjet nozzle; 6. Suction pipe; 601. Connecting pipe; 602. Main pipe; 603. Suction head; 7. Filter frame; 8. Filter screen; 9. Exhaust fan; 10. First slot; 11. Second slot; 12. Filling chamber; 13. Baffle; 14. Protective cover; 15. Sealing gasket; 16. Drive rod; 17. Drive motor; 18. Bevel gear pair; 19. Through groove; 20. Sealing plate; 21. Sealing strip; 22. Torsion spring; 23. Fixing bracket; 24. Horizontal movement plate; 25. Cleaning cotton pad; 26. Cylinder push rod. Detailed Implementation
[0021] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.
[0022] like Figures 1-6 As shown in the figure, an embodiment of this application proposes an anti-pollution inkjet mechanism for cigarette label coding, including a fixed plate 1. In practical applications, the fixed plate 1 is installed on a cigarette label production line. The fixed plate 1 is provided with a piezoelectric printhead 2, a dirt cover 3, and a fixed cylinder 4. The piezoelectric printhead 2, the dirt cover 3, and the fixed cylinder 4 are all fixed on the fixed plate 1. The dirt cover 3 is located outside the piezoelectric printhead 2. The dirt cover 3 has an inkjet nozzle 5 corresponding to the piezoelectric printhead 2. The inkjet nozzle 5 is located below the piezoelectric printhead 2. The dirt cover 3 is provided with an air suction pipe 6 communicating with the fixed cylinder 4. The air suction pipe 6 is fixed inside the dirt cover 3. The fixed cylinder 4 is provided with a filter frame 7, a filter screen 8, and a fan 9 arranged in sequence. The filter frame 7 is filled with activated carbon particles, which are not shown in the accompanying drawings.
[0023] When in use, the exhaust fan 9 is turned on, and the inside of the anti-fouling cover 3 approaches a negative pressure state, drawing the dust on the cigarette label into the suction pipe 6. Then, the exhaust fan 9 is turned off, and the cigarette label is printed using the piezoelectric printhead 2. During the printing process, ink droplets from the piezoelectric printhead 2 pass through the ink nozzle 5 and are sprayed onto the cigarette label. The anti-fouling cover 3 prevents ink from splashing onto areas that do not need to be printed. After printing is completed, the exhaust fan 9 is turned on again, and the inside of the anti-fouling cover 3 approaches a negative pressure state. The ink mist and dust generated during the printing process are drawn into the suction pipe 6 together, and then enter the fixed cylinder 4 through the suction pipe 6. First, the activated carbon particles filled in the filter frame 7 adsorb and filter the moisture and some dust in the ink mist, and then the dust is filtered a second time through the filter screen 8, thereby preventing ink splashing and external dust contamination, and ensuring the cleanliness of the cigarette label surface.
[0024] In summary, when in use, this application, through the combination of the anti-fouling cover 3 and the negative pressure suction, can prevent ink splashing and external dust contamination, ensuring the cleanliness of the cigarette label surface and guaranteeing product quality, thus making it more practical.
[0025] like Figure 4 As shown, in some embodiments, the suction pipe 6 includes a connecting pipe 601 and a main pipe 602 that are connected together. The free end of the connecting pipe 601 is connected to the fixed cylinder 4. A plurality of suction heads 603 are connected to the main pipe 602. The free end of the suction head 603 is constructed in an outwardly expanding cone shape.
[0026] Referring to the above, during use, ink mist and dust are sequentially drawn into multiple suction heads 603, main pipe 602 and connecting pipe 601, and then enter the fixed cylinder 4 through the connecting pipe 601. Through the coordinated action of multiple suction heads 603 and the outward expanding conical design, the air intake volume can be increased, thereby improving the negative pressure suction efficiency.
[0027] like Figure 6 As shown, in some embodiments, the fixed cylinder 4 is provided with a first slot 10 and a second slot 11. The filter frame 7 and the filter screen 8 are respectively inserted into the first slot 10 and the second slot 11. The filter frame 7 is constructed with a filling cavity 12. A baffle 13 is slidably arranged in the filling cavity 12. The baffle 13 can block or unblock the filling cavity 12. Activated carbon particles are filled in the filling cavity 12.
[0028] Referring to the above, in the initial state, both the filter frame 7 and the filter screen 8 are in the installed state, and they are respectively inserted into the first slot 10 and the second slot 11. The baffle 13 is located in the filling cavity 12 and seals the filling cavity 12. Activated carbon particles are filled in the filling cavity 12. In practical applications, the filter frame 7 and the filter screen 8 can be disassembled to facilitate cleaning and replacement of activated carbon particles. The filter frame 7 and the filter screen 8 are removed from the first slot 10 and the second slot 11 respectively, and the baffle 13 is slid out of the filling cavity 12 to release the seal of the filling cavity 12. The activated carbon particles in the filling cavity 12 are poured out, and new activated carbon particles are filled into the filling cavity 12. The baffle 13 is then slid to be located in the filling cavity 12 and seals the filling cavity 12.
[0029] like Figures 1-5 As shown, in some embodiments, two symmetrically distributed protective covers 14 are hinged to the anti-fouling cover 3. Each of the two protective covers 14 has a sealing gasket 15 on its opposite side. The sealing gasket 15 is made of rubber and can be deformed. The anti-fouling cover 3 is provided with a driving component, which drives the two protective covers 14 to rotate synchronously in opposite directions to form a shielding or unshielding of the inkjet nozzle 5.
[0030] Referring to the above, when the piezoelectric printhead 2 is not in operation, the two protective covers 14 are driven to rotate synchronously in opposite directions by the driving component to block the ink nozzle 5. The two sealing gaskets 15 abut and overlap and both deform, improving the sealing effect on the ink nozzle 5, thereby preventing dust and foreign objects from entering the anti-fouling cover 3 and adhering to the piezoelectric printhead 2. Conversely, when the piezoelectric printhead 2 is in operation, the two protective covers 14 are driven to rotate synchronously in opposite directions by the driving component to unblock the ink nozzle 5.
[0031] like Figure 1 As shown, in some embodiments, the driving component includes a drive rod 16 rotatably mounted on the anti-fouling cover 3. The drive rod 16 is perpendicular to the hinge axis of the protective cover 14. The anti-fouling cover 3 is provided with a drive motor 17 whose output shaft is connected to the drive rod 16. The drive motor 17 is fixed on the anti-fouling cover 3. The hinge axis of the protective cover 14 and the drive rod 16 are connected by a bevel gear pair 18. The bevel gear pair 18 includes two meshing bevel gears. The two bevel gears are respectively fixed on the hinge axis of the protective cover 14 and the drive rod 16. The two bevel gear pairs 18 are symmetrically distributed.
[0032] Referring to the above, when in use, the drive motor 17 is activated, the output shaft rotates, and the drive rod 16 rotates. When the drive rod 16 rotates, it drives the two protective covers 14 to rotate synchronously through the two bevel gear pairs 18. Since the two bevel gear pairs 18 are symmetrically distributed, the two protective covers 14 rotate in opposite directions, so as to drive the two protective covers 14 to rotate synchronously in opposite directions.
[0033] like Figures 1-3 As shown, in some embodiments, the anti-fouling cover 3 is provided with a through groove 19, a sealing component and a cleaning component. The through groove 19 is sealed or unsealed by the sealing component, and the piezoelectric nozzle 2 is cleaned by the cleaning component.
[0034] Referring to the above, in the initial state, the through groove 19 is blocked by the sealing component. When the piezoelectric printhead 2 is in the coding gap, the through groove 19 is unblocked by the sealing component, and the piezoelectric printhead 2 is cleaned by the cleaning component to ensure the coding effect next time. After that, the through groove 19 can be blocked again by the sealing component.
[0035] like Figure 3 As shown, in some embodiments, the sealing component includes two sealing plates 20 that are hinged within the anti-fouling cover 3 and symmetrically distributed. Each of the two sealing plates 20 has a sealing strip 21 on its opposite side. The sealing strip 21 is made of rubber and can deform. A torsion spring 22 is provided between the sealing plate 20 and the anti-fouling cover 3. The two ends of the torsion spring 22 are fixedly connected to the sealing plate 20 and the anti-fouling cover 3, respectively.
[0036] Referring to the above, in the initial state, both sealing plates 20 are in their initial positions, and the torsion spring 22 is in its natural state, thus sealing the through groove 19. The two sealing strips 21 abut and overlap and both deform, improving the sealing effect on the through groove 19. Conversely, the two sealing plates 20 are driven to rotate in the opposite direction to their limit positions, and the torsion spring 22 is squeezed to release the through groove 19, so that the cleaning component can clean the piezoelectric nozzle 2. Afterward, the torsion spring 22 returns to its natural state, and the two sealing plates 20 rotate in the opposite direction to their initial positions to seal the through groove 19.
[0037] like Figure 1 As shown, in some embodiments, the cleaning component includes a fixed frame 23 mounted on the anti-fouling cover 3. The fixed frame 23 is fixedly mounted on the anti-fouling cover 3. A transverse plate 24 is slidably mounted on the fixed frame 23. The transverse plate 24 abuts and overlaps with two sealing plates 20. A cleaning cotton block 25 is mounted on the transverse plate 24 and abuts and overlaps with the piezoelectric nozzle 2. A cylinder push rod 26 with its movable end connected to the transverse plate 24 is mounted on the fixed frame 23. The cylinder push rod 26 is fixedly mounted on the fixed frame 23 and its movable end is fixedly connected to the transverse plate 24.
[0038] Referring to the above, in the initial state, the movable end of the cylinder push rod 26 retracts, and the transverse plate 24 is in the initial position. In use, the movable end of the cylinder push rod 26 extends, driving the transverse plate 24 to slide to its limit position, causing the cleaning cotton block 25 to move together. During this process, the transverse plate 24 abuts and overlaps with both sealing plates 20, forcing the two sealing plates 20 to rotate synchronously in opposite directions. The torsion spring 22 is squeezed to release the blockage of the through groove 19. The cleaning cotton block 25 abuts and overlaps with the piezoelectric nozzle 2, thereby cleaning the piezoelectric nozzle 2. Conversely, the movable end of the cylinder push rod 26 retracts, driving the transverse plate 24 to slide to the initial position, causing the cleaning cotton block 25 to move together. The torsion spring 22 returns to its natural state, and the two sealing plates 20 rotate in opposite directions to the initial position to block the through groove 19.
[0039] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A pollution-resistant inkjet printing mechanism for cigarette label coding, comprising a fixed plate (1), wherein a piezoelectric printhead (2), a pollution-resistant cover (3), and a fixed cylinder (4) are disposed on the fixed plate (1), characterized in that, The anti-fouling cover (3) is located outside the piezoelectric printhead (2). The anti-fouling cover (3) has an inkjet nozzle (5) corresponding to the piezoelectric printhead (2). The anti-fouling cover (3) is equipped with an air suction pipe (6) that communicates with the fixed cylinder (4). The fixed cylinder (4) is equipped with a filter frame (7), a filter screen (8), and an exhaust fan (9) arranged in sequence. The filter frame (7) is filled with activated carbon particles.
2. The anti-pollution inkjet printing mechanism for cigarette label coding according to claim 1, characterized in that, The suction pipe (6) includes a connecting pipe (601) and a main pipe (602) that are connected together. The free end of the connecting pipe (601) is connected to the fixed cylinder (4). The main pipe (602) is connected to a plurality of suction heads (603). The free end of the suction head (603) is constructed in an outwardly expanding cone shape.
3. The anti-pollution inkjet printing mechanism for cigarette label coding according to claim 1, characterized in that, The fixed cylinder (4) is provided with a first slot (10) and a second slot (11). The filter frame (7) and the filter screen (8) are respectively inserted into the first slot (10) and the second slot (11). The filter frame (7) is provided with a filling cavity (12). A baffle (13) is slidably provided in the filling cavity (12). Activated carbon particles are filled in the filling cavity (12).
4. The anti-pollution inkjet printing mechanism for cigarette label coding according to claim 1, characterized in that, The anti-fouling cover (3) has two symmetrically distributed protective covers (14) hinged on it. Each of the two protective covers (14) has a sealing gasket (15) on its opposite side. The anti-fouling cover (3) is provided with a driving component, which drives the two protective covers (14) to rotate synchronously in opposite directions to block or unblock the inkjet nozzle (5).
5. The anti-pollution inkjet mechanism for cigarette label coding according to claim 4, characterized in that, The driving component includes a drive rod (16) rotatably mounted on the anti-fouling cover (3), and a drive motor (17) with an output shaft connected to the drive rod (16) is provided on the anti-fouling cover (3). The hinge shaft of the protective cover (14) is connected to the drive rod (16) through a bevel gear pair (18).
6. The anti-pollution inkjet printing mechanism for cigarette label coding according to claim 1, characterized in that, The anti-fouling cover (3) is provided with a through groove (19), a sealing component and a cleaning component. The through groove (19) is sealed or unsealed by the sealing component, and the piezoelectric nozzle (2) is cleaned by the cleaning component.
7. The anti-pollution inkjet printing mechanism for cigarette label coding according to claim 6, characterized in that, The sealing component includes two sealing plates (20) that are hinged inside the anti-fouling cover (3) and symmetrically distributed. Each of the two sealing plates (20) has a sealing strip (21) on its opposite side. A torsion spring (22) is provided between the sealing plate (20) and the anti-fouling cover (3).
8. The anti-pollution inkjet printing mechanism for cigarette label coding according to claim 7, characterized in that, The cleaning component includes a fixed frame (23) mounted on a dirt cover (3), a transverse plate (24) slidably mounted on the fixed frame (23), the transverse plate (24) and two sealing plates (20) are in contact and overlap, a cleaning cotton block (25) is mounted on the transverse plate (24) and in contact and overlaps with the piezoelectric nozzle (2), and a cylinder push rod (26) with its movable end connected to the transverse plate (24) is mounted on the fixed frame (23).