Small character inkjet printer with replaceable inkjet head
By introducing structures such as mounting discs, gear rings, gears, and threaded rods into the small character inkjet printer, the problem of long printhead replacement time has been solved, enabling rapid installation, removal, and maintenance of the printhead, and improving spraying efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI HESHENG COSMETIC CO LTD
- Filing Date
- 2025-06-30
- Publication Date
- 2026-05-26
AI Technical Summary
The printheads of existing small character inkjet printers are not easy to install and remove quickly, which requires long downtime when changing different printheads, affecting the spraying efficiency.
The design incorporates components such as a mounting plate, gear ring, gears, and threaded rods. By rotating the gear ring, multiple gears rotate synchronously, enabling quick installation and removal of the nozzle. The use of threaded connections and bolts simplifies the nozzle replacement process.
It enables convenient replacement and maintenance of the spray nozzles, reduces downtime, and improves spraying efficiency.
Smart Images

Figure CN224276648U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of inkjet printer technology, specifically to a small character inkjet printer with easily replaceable inkjet headers. Background Technology
[0002] In the skincare product manufacturing process, every detail is crucial, especially the product packaging and labeling. To ensure that consumers can obtain accurate product information and to enhance the product's professionalism and aesthetics, manufacturers typically choose inkjet printing technology. Small character inkjet printers, as an advanced labeling device, are widely popular due to their clear printing effect and ease of operation. After skincare product packaging is completed, small character inkjet printers are used to accurately print key information such as production date, batch number, and expiration date on the surface of the packaging box.
[0003] However, it has been found that the connection between the printhead and the machine is not convenient for quick assembly and disassembly. When different printheads need to be replaced for different products, the replacement time is long, resulting in a long downtime and affecting the coating efficiency. Utility Model Content
[0004] To address the shortcomings of existing technologies, this application provides a small character inkjet printer with easily replaceable printheads. It has the advantages of easy replacement and maintenance, reduced downtime, and improved spraying efficiency. It solves the problem that existing printheads are not easy to disassemble and assemble quickly, and when different printheads are needed for different products, the replacement time is long, resulting in long downtime and affecting spraying efficiency.
[0005] To achieve the above objectives, this application provides the following technical solution: a small character inkjet printer with easily replaceable inkjet heads, comprising a body and a printhead. A connecting pipe is fixedly installed on the left side of the body, and an mounting plate is fixedly installed on the other end of the connecting pipe. An annular groove is formed on the front of the mounting plate, and an annular component is rotatably installed on the inner wall of the annular groove. A toothed ring is fixedly connected to the front of the annular component, and gears arranged at equal intervals mesh on the outer surface of the toothed ring. A threaded rod is fixedly connected to the back of each gear, and the outer surface of each threaded rod is rotatably connected to the inner wall of the mounting plate. A mounting seat is fixedly connected to the front of the printhead, and the outer surface of each threaded rod is threadedly connected to the inner wall of the mounting seat.
[0006] The above solution facilitates nozzle replacement, thereby improving device maintenance, reducing downtime, and increasing spraying efficiency. When nozzle removal is required, rotating the gear ring causes multiple gears to rotate synchronously, which in turn drives corresponding threaded rods. These threaded rods rotate synchronously, and through the threaded connection between the rods and the mounting base, they slowly disengage from the mounting base, allowing the nozzle and mounting base to detach from the mounting plate for quick disassembly. Conversely, when installing a nozzle, the mounting base is matched with the corresponding threaded rod, and the gear ring is reversed, causing the threaded rods to rotate synchronously in the opposite direction, connecting them to the mounting base for quick nozzle installation. This allows the device to quickly install and remove nozzles, facilitating nozzle replacement and maintenance. Furthermore, by using different nozzles for different products, it reduces downtime and improves spraying efficiency.
[0007] Furthermore, the inner wall of the toothed ring is threaded with a bolt, and a rotating wheel is provided on the front side of the toothed ring.
[0008] With the above solution, a bolt component is installed on the inner wall of the gear ring, which is set as a threaded connection. By rotating the bolt component, the bolt component can be tightened against the mounting plate, thereby locking the gear ring. A rotating wheel is installed on the front of the gear ring, which allows the operator to easily rotate the gear ring.
[0009] Furthermore, a mounting block is fixedly connected to the back of the machine body, and an operation screen is provided on the upper surface of the machine body.
[0010] The above solution fixes the mounting block to the back of the machine body, setting it as a fixed connection to achieve the positioning and installation effect of the mounting block. The operation screen is set on the upper surface of the machine body, making it convenient for operators to control the inkjet printer.
[0011] Furthermore, the inner wall of the mounting block is threaded with a bolt, and the inner wall of the mounting block is fitted with a connecting rod.
[0012] The above scheme fixes the second bolt to the inner wall of the mounting block and sets it as a threaded connection to realize the installation of the second bolt. The connecting rod is sleeved on the inner wall of the mounting block to realize the limitation of the connecting rod, so that the connecting rod can move up and down and facilitate the rotation of the connecting rod. By rotating the second bolt, the connecting rod can be tightened and locked.
[0013] Furthermore, a limit block is fixedly connected to the bottom end of the connecting rod, and a mounting bracket is fixedly connected to the top end of the connecting rod.
[0014] The above solution involves installing a limiting block at the bottom of the connecting rod for a fixed connection, thus preventing the connecting rod from falling off. A mounting bracket is placed at the top of the connecting rod for a fixed connection, allowing the mounting bracket to be raised and lowered by the connecting rod, facilitating adjustment of the spraying height.
[0015] Furthermore, a guide rod is fixedly connected to the upper surface of the mounting bracket, and a clamping rod is sleeved on the outer surface of the guide rod.
[0016] The above solution fixes the guide rod to the upper surface of the mounting bracket as a fixed connection, achieving the positioning and installation effect of the guide rod. The clamping rod is placed on the surface of the guide rod as a sleeve, allowing the clamping rod to rise and fall while rotating, thus limiting the clamping rod.
[0017] Furthermore, the inner wall of the mounting frame is provided with a rubber layer, and the bottom surface of the clamping rod is provided with a rubber layer.
[0018] The above solution involves installing a rubber layer on the inner wall of the mounting bracket and another rubber layer on the bottom surface of the clamping rod. The mounting bracket and clamping rod securely hold the nozzle in place. The soft rubber layer prevents hard contact between the nozzle and the clamping structure. When the nozzle is clamped, the rubber layer fills the tiny gaps between the nozzle and the clamping device, preventing scratches on the nozzle surface.
[0019] Furthermore, the inner wall of the clamping rod is rotatably connected to a bolt member three, and the outer surface of the bolt member three is threadedly connected to the inner wall of the mounting bracket.
[0020] The above scheme involves installing bolt part three on the inner wall of the clamping rod and setting it as a rotatable connection to limit the movement of bolt part three. Connecting the threaded end of bolt part three to the mounting bracket allows the nozzle to be locked in place through its cooperation with the clamping rod, making it easy to fix the nozzle on the mounting bracket.
[0021] Compared with the prior art, the technical solution of this application has the following beneficial effects:
[0022] This small character inkjet printer, which facilitates nozzle replacement, incorporates components such as a mounting plate, gear ring, gears, and threaded rods. When nozzle installation or removal is required, rotating the gear ring causes multiple gears to rotate synchronously, which in turn causes the threaded rod to rotate synchronously. The connection between the threaded rod and the mounting base allows for quick installation and removal of the nozzle, facilitating replacement and maintenance, reducing downtime, and improving spraying efficiency. Rotating bolt two releases the limit on the connecting rod, allowing it to slide up and down. This enables the nozzle held by the mounting bracket and clamping rod to move up and down, and the connecting rod can be rotated to adjust its angle. Bolt two then locks the connection, allowing for easy adjustment of the nozzle's spraying height and enhancing the device's versatility. Attached Figure Description
[0023] Figure 1 This is a three-dimensional structural diagram of the entire application;
[0024] Figure 2 This is a left-side view of the overall structure of this application;
[0025] Figure 3 This is a structural diagram showing the connection relationship between the mounting block and the connecting rod in this application;
[0026] Figure 4 This is a structural diagram showing the connection relationship between the guide rod and the clamping rod in this application;
[0027] Figure 5 This is a structural diagram showing the connection relationship between the gear ring and the gear in this application.
[0028] In the picture:
[0029] 1. Body; 2. Connecting pipe; 3. Mounting plate; 4. Annular groove; 5. Annular component; 6. Gear ring; 7. Gear; 8. Threaded rod; 9. Nozzle; 10. Mounting base; 11. Bolt component one; 12. Mounting block; 13. Bolt component two; 14. Connecting rod; 15. Mounting bracket; 16. Guide rod; 17. Clamping rod; 18. Bolt component three; 19. Limiting block. Detailed Implementation
[0030] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0031] Please see Figure 1 , Figure 3 and Figure 5 This embodiment of a small character inkjet printer with easy-to-change inkjet head includes a body 1 and a printhead 9. A connecting pipe 2 is fixedly installed on the left side of the body 1, and a mounting plate 3 is fixedly installed on the other end of the connecting pipe 2. An annular groove 4 is opened on the front of the mounting plate 3. An annular component 5 is rotatably installed on the inner wall of the annular groove 4. A toothed ring 6 is fixedly connected to the front of the annular component 5. Gears 7 arranged at equal intervals are meshed on the outer surface of the toothed ring 6. A threaded rod 8 is fixedly connected to the back of each gear 7. The outer surface of each threaded rod 8 is rotatably connected to the inner wall of the mounting plate 3. A mounting seat 10 is fixedly connected to the front of the printhead 9. The outer surface of each threaded rod 8 is threadedly connected to the inner wall of the mounting seat 10.
[0032] Please see Figure 5The inner wall of the toothed ring 6 is threaded with a bolt 11. A rotating wheel is provided on the front of the toothed ring 6. The bolt 11 is installed on the inner wall of the toothed ring 6 and is threaded. By rotating the bolt 11, the bolt 11 can be tightened against the mounting plate 3, thereby locking the toothed ring 6. The rotating wheel is installed on the front of the toothed ring 6, and the rotating wheel makes it easy for the operator to rotate the toothed ring 6.
[0033] Please see Figure 2 , Figure 3 and Figure 4 The back of the machine body 1 is fixedly connected to the mounting block 12, and the upper surface of the machine body 1 is provided with an operation screen. The mounting block 12 is fixed to the back of the machine body 1, which is a fixed connection to achieve the positioning and installation effect of the mounting block 12. The operation screen is set on the upper surface of the machine body 1, so that the operator can easily operate the inkjet printer through the operation screen.
[0034] Please see Figure 2 , Figure 3 and Figure 4 The inner wall of the mounting block 12 is threaded with a bolt 13. A connecting rod 14 is fitted on the inner wall of the mounting block 12. The bolt 13 is fixed to the inner wall of the mounting block 12 and is set as a threaded connection to realize the installation of the bolt 13. The connecting rod 14 is fitted on the inner wall of the mounting block 12 to realize the limitation of the connecting rod 14, so that the connecting rod 14 can move up and down and is easy to rotate. By rotating the bolt 13, the connecting rod 14 can be tightened and locked.
[0035] Please see Figure 2 and Figure 4 A limiting block 19 is fixedly connected to the bottom end of the connecting rod 14, and a mounting bracket 15 is fixedly connected to the top end of the connecting rod 14. The limiting block 19 is installed at the bottom end of the connecting rod 14 to form a fixed connection, thereby realizing the installation of the limiting block 19. The limiting block 19 can prevent the connecting rod 14 from falling off. The mounting bracket 15 is set at the top end of the connecting rod 14 to form a fixed connection. By raising and lowering the connecting rod 14, the mounting bracket 15 can be raised and lowered, which is convenient for adjusting the spraying height.
[0036] Please see Figure 4 A guide rod 16 is fixedly connected to the upper surface of the mounting bracket 15. A clamping rod 17 is sleeved on the outer surface of the guide rod 16. The guide rod 16 is fixed to the upper surface of the mounting bracket 15, which is a fixed connection to achieve the positioning and installation effect of the guide rod 16. The clamping rod 17 is set on the surface of the guide rod 16, which is a sleeve, so that the clamping rod 17 can be raised and lowered and rotated at the same time, thereby limiting the clamping rod 17.
[0037] Please see Figure 4The inner wall of the mounting bracket 15 is provided with a rubber layer, and the bottom surface of the clamping rod 17 is also provided with a rubber layer. The mounting bracket 15 and the clamping rod 17 together clamp and fix the nozzle 9 in place. The soft rubber layer prevents hard contact between the nozzle 9 and the clamping structure. When the nozzle 9 is clamped, the rubber layer fills the tiny gaps between the nozzle 9 and the clamping device, preventing scratches on the surface of the nozzle 9.
[0038] Please see Figure 4 The inner wall of the clamping rod 17 is rotatably connected to a bolt 18. The outer surface of the bolt 18 is threadedly connected to the inner wall of the mounting bracket 15. The bolt 18 is installed on the inner wall of the clamping rod 17 and is configured as a rotatable connection to limit the movement of the bolt 18. The threaded end of the bolt 18 is connected to the mounting bracket 15. Through cooperation with the clamping rod 17, the nozzle 9 can be locked, making it easy to fix the nozzle 9 on the mounting bracket 15.
[0039] This embodiment describes a small character inkjet printer that facilitates the replacement of the spray nozzle. By incorporating components such as a mounting plate 3, a gear ring 6, gears 7, and a threaded rod 8, when the nozzle 9 needs to be installed or removed, rotating the gear ring 6 causes multiple gears 7 to rotate synchronously, which in turn causes the threaded rod 8 to rotate synchronously. The connection between the threaded rod 8 and the mounting base 10 allows for quick installation and removal of the nozzle 9, facilitating replacement and maintenance, reducing downtime, and improving spraying efficiency. Rotating the second bolt 13 releases the restriction on the connecting rod 14, allowing it to slide up and down. This enables the nozzle 9, held by the mounting bracket 15 and clamping rod 17, to move up and down. The connecting rod 14 can also be rotated to adjust its angle. Finally, the second bolt 13 locks the connection, allowing for easy adjustment of the nozzle 9's spraying height and enhancing the device's applicability.
[0040] It should be noted that, under the action of bolt part 2 13 and connecting rod 14, the nozzle 9 can adjust its height, and the connecting rod 14 can rotate its angle, so that the nozzle 9 can rotate its angle. The surface of the toothed ring 6 has a ring of teeth that mesh with the gear 7. Through the connection between the teeth and the gear 7, multiple gears 7 can rotate synchronously and in the same direction, which ultimately makes the threaded rod 8 rotate synchronously and in the same direction.
[0041] The working principle of the above embodiments is as follows:
[0042] First, release the locking of bolt 13 onto connecting rod 14. Raise connecting rod 14 to the designated height. Then, lock connecting rod 14 with bolt 13. Rotate clamping rod 17 to a position that does not affect nozzle 9 installation via guide rod 16. Place nozzle 9 on mounting bracket 15. Reset clamping rod 17. Then, rotate bolt 18 to connect bolt 18 to mounting bracket 15, fixing clamping rod 17 and clamping nozzle 9, thus achieving nozzle 9 height adjustment. When nozzle 9 needs to be installed or removed, release the limit on gear ring 6 by rotating bolt 11. Rotate wheel to rotate gear ring 6, causing multiple gears 7 to rotate synchronously. Multiple threaded rods 8 can then rotate synchronously. The connection between threaded rods 8 and mounting base 10 allows nozzle 9 to be quickly installed and removed, facilitating nozzle 9 replacement and maintenance. Furthermore, when using different nozzles 9 for different products, it reduces downtime during replacement and improves spraying efficiency.
[0043] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0044] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A small character inkjet printer with easily replaceable printheads, comprising a body (1) and a printhead (9), characterized in that: A connecting pipe (2) is fixedly installed on the left side of the body (1), and an installation plate (3) is fixedly installed on the other end of the connecting pipe (2). An annular groove (4) is opened on the front side of the installation plate (3). An annular component (5) is rotatably installed on the inner wall of the annular groove (4). A toothed ring (6) is fixedly connected to the front side of the annular component (5). Gears (7) are meshed on the outer surface of the toothed ring (6) at equal intervals. A threaded rod (8) is fixedly connected to the back side of each gear (7). The outer surface of each threaded rod (8) is rotatably connected to the inner wall of the installation plate (3). A mounting seat (10) is fixedly connected to the front side of the nozzle (9). The outer surface of each threaded rod (8) is threadedly connected to the inner wall of the mounting seat (10).
2. The small character inkjet printer with easily replaceable inkjet headers according to claim 1, characterized in that: The inner wall of the toothed ring (6) is threaded with a bolt (11), and a rotating wheel is provided on the front side of the toothed ring (6).
3. A small character inkjet printer with easily replaceable inkjet headers as described in claim 1, characterized in that: The back of the body (1) is fixedly connected to an installation block (12), and an operation screen is provided on the upper surface of the body (1).
4. A small character inkjet printer with easily replaceable inkjet headers according to claim 3, characterized in that: The inner wall of the mounting block (12) is threaded with a bolt (13), and the inner wall of the mounting block (12) is fitted with a connecting rod (14).
5. A small character inkjet printer with easily replaceable inkjet headers as described in claim 4, characterized in that: The bottom end of the connecting rod (14) is fixedly connected to a limiting block (19), and the top end of the connecting rod (14) is fixedly connected to a mounting bracket (15).
6. A small character inkjet printer with easily replaceable inkjet headers as described in claim 5, characterized in that: A guide rod (16) is fixedly connected to the upper surface of the mounting bracket (15), and a clamping rod (17) is sleeved on the outer surface of the guide rod (16).
7. A small character inkjet printer with easily replaceable inkjet headers as described in claim 6, characterized in that: The inner wall of the mounting bracket (15) is provided with a rubber layer, and the bottom surface of the clamping rod (17) is provided with a rubber layer.
8. A small character inkjet printer with easily replaceable inkjet headers as described in claim 6, characterized in that: The inner wall of the clamping rod (17) is rotatably connected to a bolt member three (18), and the outer surface of the bolt member three (18) is threadedly connected to the inner wall of the mounting bracket (15).