Detachable liquid discharging mechanism of printer
By designing the resin cartridge and motor assembly in a photopolymer 3D printer, stable discharge of photosensitive resin was achieved, solving the problems of clogging and incomplete scraping, and improving the discharge effect and ease of operation.
Patent Information
- Application Number
- CN202423126554.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-18
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2034-12-18
AI Technical Summary
Existing photopolymer 3D printers are prone to clogging and incomplete scraping by the scraper, which affects the discharge of photosensitive resin.
The design incorporates components such as a resin box, servo motor, threaded moving rod, moving limit block, moving fixed frame, scraper, collection tank, and discharge pipe. The servo motor drives the scraper to move left and right for scraping, and the drive motor and spiral discharge rod together to discharge liquid in a spiral manner, avoiding problems such as clogging and incomplete scraping.
It achieves stable discharge of photosensitive resin, avoids clogging and incomplete scraping, and facilitates the disassembly and cleaning of the drainage scraper.
Smart Images

Figure CN223644291U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of printer technology, specifically to a printer disassembly and drainage mechanism. Background Technology
[0002] Currently, photopolymer 3D printers use liquid photosensitive resin as raw material. The photosensitive resin is poured into a resin box, and when the photopolymer 3D printer is working, it is irradiated with light to solidify the photosensitive resin into a specified shape. Liquid photosensitive resin has slight toxicity, and after printing, the liquid photosensitive resin needs to be resealed.
[0003] In related technologies, the remaining photosensitive resin in the resin box is usually treated by connecting the resin box to a micro pump, using the micro pump to extract the photosensitive resin, and then lifting one side of the photosensitive resin so that the photosensitive resin flows to a corner, leaving as little residue as possible.
[0004] The reference patent number "CN 219486587U", entitled "A Drainage Mechanism for a Photopolymer 3D Printer", addresses the issue that "photosensitive resin has a certain viscosity and poor fluidity, resulting in some photosensitive resin adhering to the inner and bottom walls of the resin box after being sucked out, making it impossible to recover the photosensitive resin in one go." However, it also has some drawbacks. For example, the aforementioned application lacks an anti-clogging structure inside the discharge tube, and the high viscosity and poor fluidity of photosensitive resin can easily clog the discharge tube, hindering drainage and affecting the discharge effect. Furthermore, in the aforementioned application, the scraper is merely inserted into the slot without a limiting mechanism. During use, the photosensitive resin easily solidifies and hardens, sticking to the bottom of the resin box. When the scraper passes over the bottom of the resin box, it is prone to moving upwards, affecting the scraping effect. Therefore, this paper proposes a disassembly and drainage mechanism for a printer to solve the aforementioned technical problems. Summary of the Invention
[0005] (a) Technical problems to be solved
[0006] To address the shortcomings of existing technologies, this utility model provides a disassembly and drainage mechanism for a printer, solving the problems mentioned in the background section.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a printer disassembly and drainage mechanism, comprising a resin box, wherein a first motor cavity is provided inside the resin box, a servo motor is fixedly connected to the inner wall of the first motor cavity, a threaded moving rod is fixedly connected to the output end of the servo motor, a moving limiting block is fixedly connected to the surface of the threaded moving rod, a moving fixing frame is fixedly connected to the inner wall of the moving limiting block, a slot is provided on the surface of the moving fixing frame, a scraper is inserted into the slot, a concentrating groove is provided on the left side of the inner bottom wall of the resin box, and a discharge pipe is fixedly connected to the inner side wall of the resin box.
[0008] Preferably, the bottom of the scraper is movably connected to the inner bottom wall of the resin box.
[0009] Preferably, a sliding limit block is fixedly connected to one end of the movable fixing frame away from the threaded moving rod, and a limit slide rod is slidably connected inside the sliding limit block, with both ends of the limit slide rod fixedly connected to the resin box.
[0010] Preferably, the discharge pipe has a second motor cavity inside, a drive motor is fixedly connected to the inner wall of the second motor cavity, and a spiral discharge rod is fixedly connected to the output end of the drive motor.
[0011] Preferably, the bottom of the discharge pipe is provided with a discharge port, and both ends of the movable fixed frame are movably connected to scraper limiting plates via damping rotating shafts.
[0012] Preferably, the outer wall of the resin box is fixedly connected with a perforated plate, and the number of perforated plates is four.
[0013] Compared with the prior art, the present invention provides a disassembly and drainage mechanism for a printer, which has the following advantages:
[0014] The printer's disassembly and drainage mechanism is designed with the resin box, first motor cavity, servo motor, threaded moving rod, moving limit block, moving fixed frame, scraper, collection tank, discharge pipe, sliding limit block, limit slide rod, and scraper limit plate working together. In use, the scraper is inserted into the moving fixed frame until its bottom is against the bottom wall of the resin box. The scraper is then fixed by rotating the scraper limit plate. The servo motor, powered by an external power source, drives the threaded moving rod left and right. This causes the moving limit block to move the moving fixed frame and the scraper threaded limit plate left and right on the surface of the threaded moving rod, scraping and draining the photosensitive resin. The photosensitive resin then passes through the collection tank... The resin enters the discharge pipe from the middle tank and is discharged. After discharge, personnel can disassemble and clean the scraper by rotating the scraper limit plate, which stabilizes the discharge of photosensitive resin and effectively prevents scraper movement from affecting the discharge effect. It also facilitates the disassembly and cleaning of the discharge scraper. Through the coordinated design of the second motor cavity, drive motor and spiral discharge rod, the drive motor is connected to an external power source to drive the spiral discharge rod to rotate and discharge the photosensitive resin in the discharge pipe in a spiral manner. This effectively prevents the photosensitive resin from solidifying and clogging the discharge pipe, thus affecting the discharge effect. Attached Figure Description
[0015] Figure 1 This is a top view of the structure of this utility model;
[0016] Figure 2 This is a partial structural cross-sectional view of the present invention;
[0017] Figure 3 This is a partial structural cross-sectional view of the present utility model.
[0018] In the figure: 1. Resin box; 2. First motor cavity; 3. Servo motor; 4. Threaded moving rod; 5. Moving limit block; 6. Moving fixing frame; 7. Scraper; 8. Concentrating trough; 9. Discharge pipe; 10. Sliding limit block; 11. Limiting slide rod; 12. Second motor cavity; 13. Drive motor; 14. Spiral discharge rod; 15. Scraper limit plate; 16. Orifice plate. Detailed Implementation
[0019] 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.
[0020] Please see Figure 1-3This utility model provides a technical solution: a printer disassembly and drainage mechanism, including a resin box 1, and is configured by the cooperation of the resin box 1, a first motor cavity 2, a servo motor 3, a threaded moving rod 4, a moving limiting block 5, a moving fixing frame 6, a scraper 7, a collection groove 8, a discharge pipe 9, a sliding limiting block 10, a limiting slide rod 11, and a scraper limiting plate 15. In use, the scraper 7 is inserted into the moving fixing frame 6 until the bottom of the scraper 7 is in contact with the inner bottom wall of the resin box 1. The scraper 7 is limited and fixed by rotating the scraper limiting plate 15. Then, the servo motor 3, connected to an external power source, drives the threaded moving rod 4 to move left and right, causing the moving limiting block 5 to move the moving fixing frame 6 and the scraper... The threaded limit plate 7 moves left and right on the surface of the threaded moving rod 4 to scrape and drain the photosensitive resin. The photosensitive resin then enters the discharge pipe 9 through the collection tank 8 for discharge. After discharge, personnel can disassemble and clean the scraper 7 by rotating the scraper limit plate 15. This stabilizes the discharge of the photosensitive resin and effectively prevents the scraper movement from affecting the discharge effect. It also facilitates disassembly and cleaning of the discharge scraper. The resin box 1 has a first motor cavity 2 inside. A servo motor 3 is fixedly connected to the inner wall of the first motor cavity 2. The output end of the servo motor 3 is fixedly connected to the threaded moving rod 4. A movement limit plate is fixedly connected to the surface of the threaded moving rod 4. The inner wall of the movable limiting block 5 is fixedly connected to a movable fixing frame 6. The surface of the movable fixing frame 6 has a slot, and a scraper 7 is inserted into the slot. A collection groove 8 is opened on the left side of the inner bottom wall of the resin box 1. A discharge pipe 9 is fixedly connected to the inner side wall of the resin box 1. The bottom of the scraper 7 is movably connected to the inner bottom wall of the resin box 1. A sliding limiting block 10 is fixedly connected to the end of the movable fixing frame 6 away from the threaded moving rod 4. A limiting slide rod 11 is slidably connected inside the sliding limiting block 10. Both ends of the limiting slide rod 11 are fixedly connected to the resin box 1. A second motor cavity 12 is opened inside the discharge pipe 9. The second motor cavity 12, the drive motor 13, and the spiral discharge rod are connected through the second motor cavity 12. With the cooperation of 14, when in use, the drive motor 13 is connected to an external power source to drive the spiral discharge rod 14 to rotate and spirally discharge the photosensitive resin in the discharge pipe 9, which plays the role of spirally discharging the photosensitive resin and effectively avoids the situation where the photosensitive resin solidifies and blocks the discharge pipe, affecting the discharge effect. The drive motor 13 is fixedly connected to the inner wall of the second motor cavity 12, and the spiral discharge rod 14 is fixedly connected to the output end of the drive motor 13. A discharge port is provided at the bottom of the discharge pipe 9. Both ends of the movable fixed frame 6 are movably connected to scraper limiting plates 15 through damping rotating shafts. Four perforated plates 16 are fixedly connected to the outer wall of the resin box 1.
[0021] In summary, the disassembly and drainage mechanism of this printer is configured through the cooperation of resin box 1, first motor cavity 2, servo motor 3, threaded moving rod 4, moving limit block 5, moving fixing frame 6, scraper 7, collection groove 8, discharge pipe 9, sliding limit block 10, limit slide rod 11, and scraper limit plate 15. During use, the scraper 7 is inserted into the moving fixing frame 6 until the bottom of the scraper 7 is in contact with the inner bottom wall of the resin box 1. The scraper 7 is limited and fixed by rotating the scraper limit plate 15. Then, the servo motor 3, connected to an external power source, drives the threaded moving rod 4 to move left and right. This causes the moving limit block 5 to move the moving fixing frame 6 and the scraper 7 threadedly limited on the surface of the threaded moving rod 4, scraping and draining the photosensitive resin. The photosensitive resin enters the discharge pipe 9 through the collection tank 8 and is discharged. After discharge, personnel can disassemble and clean the scraper 7 by rotating the scraper limit plate 15, which plays a role in stabilizing the discharge of photosensitive resin and effectively avoids the situation where the scraper movement affects the discharge effect. At the same time, it is convenient for personnel to disassemble and clean the discharge scraper. Through the cooperation of the second motor cavity 12, drive motor 13 and spiral discharge rod 14, when in use, the drive motor 13 is connected to an external power source to drive the spiral discharge rod 14 to rotate and perform spiral discharge of photosensitive resin in the discharge pipe 9, which plays a role in spiral discharge of photosensitive resin and effectively avoids the situation where photosensitive resin solidifies and blocks the discharge pipe, affecting the discharge effect.
[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0023] 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.
[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A disassembly and drainage mechanism for a printer, comprising a resin cartridge (1), characterized in that: The resin box (1) has a first motor cavity (2) inside. A servo motor (3) is fixedly connected to the inner wall of the first motor cavity (2). A threaded moving rod (4) is fixedly connected to the output end of the servo motor (3). A moving limit block (5) is fixedly connected to the surface of the threaded moving rod (4). A moving fixing frame (6) is fixedly connected to the inner wall of the moving limit block (5). A strip hole is opened on the surface of the moving fixing frame (6). A scraper (7) is inserted into the inside of the strip hole. A collection groove (8) is opened on the left side of the bottom wall of the resin box (1). A discharge pipe (9) is fixedly connected to the inner side wall of the resin box (1).
2. The disassembly and drainage mechanism for a printer according to claim 1, characterized in that: The bottom of the scraper (7) is movably connected to the inner bottom wall of the resin box (1).
3. The disassembly and drainage mechanism for a printer according to claim 1, characterized in that: The movable fixing frame (6) is fixedly connected to a sliding limit block (10) at one end away from the threaded moving rod (4). The sliding limit block (10) is slidably connected to a limit slide rod (11) inside. The two ends of the limit slide rod (11) are fixedly connected to the resin box (1).
4. The disassembly and drainage mechanism for a printer according to claim 1, characterized in that: The discharge pipe (9) has a second motor cavity (12) inside, and a drive motor (13) is fixedly connected to the inner wall of the second motor cavity (12). The output end of the drive motor (13) is fixedly connected to a spiral discharge rod (14).
5. The disassembly and drainage mechanism for a printer according to claim 1, characterized in that: The bottom of the discharge pipe (9) is provided with a discharge port, and both ends of the movable fixed frame (6) are movably connected to scraper limiting plates (15) through damping rotating shafts.
6. The disassembly and drainage mechanism for a printer according to claim 1, characterized in that: The outer wall of the resin box (1) is fixedly connected with a perforated plate (16), and the number of perforated plates (16) is four.
Citation Information
Patent Citations
Liquid drainage mechanism for photocuring 3D printer
CN219486587U