Residual liquid treatment mechanism of photocuring printer

Abstract

The embodiment of the utility model provides a residual liquid treatment mechanism of a photocuring printer. The residual liquid treatment mechanism comprises a waste liquid collection box; the scraping plate is arranged at the top of the waste liquid collecting box and can move up and down along the box wall; the filter screen is arranged in the waste liquid collecting box and is used for intercepting large-particle impurities in the resin; the inclined guide plate is positioned at the bottom of the waste liquid collecting box, is downwards inclined and is used for guiding the resin to flow into the low-position area of the waste liquid collecting box; the magnetic adsorption assembly is mounted at the position, close to the waste liquid discharging opening, of the inclined guide plate and used for removing ferromagnetic particles in the resin under the action of a magnetic field; wherein the interior of the waste liquid collecting box is provided with a gradually-shrunk structure; a convex edge is arranged on the surface of the inclined guide plate; a stirring rod is arranged on one side of the magnetic adsorption assembly, a driving motor is connected to the stirring rod, and the driving motor drives the stirring rod to rotate regularly. Through the scheme of the embodiment of the invention, the problem of how to optimize the residual liquid collecting container so as to more thoroughly recover the residual resin can be solved.

Description

Technical Field

[0001] This application relates to the field of photopolymer 3D printing technology, specifically to a residual liquid treatment mechanism for a photopolymer printer. Background Technology

[0002] A residual resin handling mechanism for a photopolymer 3D printer refers to a device used to recover and process uncured liquid resin during the photopolymer 3D printing process. After printing, this mechanism can effectively collect residual resin, reducing waste and ensuring the cleanliness and maintenance of the equipment. However, in practical applications, the question remains: how to optimize the residual resin collection container to achieve more thorough resin recovery? Current residual resin collection methods may have design limitations, resulting in some resin not being completely recovered, affecting material utilization and printing efficiency. These issues not only restrict further improvements in equipment performance but also pose challenges to environmental protection and cost control. Summary of the Invention

[0003] In view of this, the present disclosure provides a residual liquid treatment mechanism for a photopolymer printer, which at least partially solves the problems existing in the prior art.

[0004] This application discloses a residual liquid treatment mechanism for a photopolymer printer, comprising:

[0005] Waste liquid collection tank, used to hold residual resin discharged from the UV curing printer;

[0006] A scraper is installed on top of the waste liquid collection tank and can move up and down along the tank wall;

[0007] A filter screen, placed inside the waste liquid collection tank, is used to intercept large particulate impurities in the resin.

[0008] An inclined guide plate, located at the bottom of the waste liquid collection tank and inclined downward, is used to guide the resin to flow into the lower area of ​​the waste liquid collection tank;

[0009] The magnetic adsorption component is installed near the waste liquid outlet of the inclined guide plate and is used to remove ferromagnetic particles in the resin by means of a magnetic field.

[0010] The waste liquid collection tank has a tapered internal structure.

[0011] The inclined guide plate has raised ridges on its surface; and

[0012] A stirring rod is provided on one side of the magnetic adsorption component, and a drive motor is connected to the stirring rod. The drive motor periodically drives the stirring rod to rotate.

[0013] In one specific embodiment, the inner wall of the waste liquid collection tank has an anti-slip textured structure.

[0014] In one specific embodiment, a one-way valve is provided at the discharge port at the bottom of the waste liquid collection tank.

[0015] In one specific embodiment, the waste liquid collection tank is equipped with a transparent viewing window on the outside.

[0016] In one specific embodiment, the top opening of the waste liquid collection tank is equipped with a flip-top closure door.

[0017] In one specific embodiment, the lower end of the scraper is provided with an elastic scraper blade.

[0018] In one specific embodiment, the filter screen is composed of multiple layers of filter screens with different mesh counts, with the mesh count gradually increasing from top to bottom.

[0019] In one specific embodiment, a sealing ring is provided at the edge of the filter screen.

[0020] In one specific embodiment, the magnetic adsorption component is covered with a corrosion-resistant coating.

[0021] This disclosure provides a residual resin treatment mechanism for a photopolymer printer, comprising: a waste liquid collection tank for containing residual resin discharged from the photopolymer printer; a scraper disposed at the top of the waste liquid collection tank and movable up and down along the tank wall; a filter screen placed inside the waste liquid collection tank for intercepting large particulate impurities in the resin; an inclined guide plate located at the bottom of the waste liquid collection tank and inclined downwards for guiding resin into the lower area of ​​the waste liquid collection tank; and a magnetic adsorption component installed near the waste liquid outlet of the inclined guide plate for removing ferromagnetic particles in the resin through a magnetic field. The waste liquid collection tank has a tapered internal structure; the inclined guide plate has raised ridges on its surface; and a stirring rod is disposed on one side of the magnetic adsorption component, with a drive motor connected to the stirring rod, the drive motor periodically rotating the stirring rod. This disclosure solves the problem of optimizing the residual resin collection container for more thorough recycling of residual resin. Attached Figure Description

[0022] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the various drawings denote the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings depict only some embodiments disclosed in this application and should not be construed as limiting the scope of this application.

[0023] Figure 1 This is a schematic diagram of the structure of the residual liquid treatment mechanism for a photopolymer printer described in this utility model;

[0024] Figure 2 This is a schematic diagram of the internal structure of the waste liquid collection tank in the waste liquid treatment mechanism of the photopolymer printer described in this utility model;

[0025] Figure 3 This is a schematic diagram of the magnetic adsorption component in the residual liquid treatment mechanism of a photopolymer printer described in this utility model;

[0026] Figure 4 This utility model describes a residual liquid treatment mechanism for a light-curing printer. Figure 3 Enlarged view of point A in the middle;

[0027] Figure 5 This is a bottom view of the scraper in the residual liquid treatment mechanism of a photopolymer printer described in this utility model.

[0028] In the diagram: 1. Waste liquid collection tank; 2. Scraper; 3. Filter screen; 4. Inclined guide plate; 5. Magnetic adsorption assembly; 6. Anti-slip textured structure; 7. Elastic scraper; 8. Sealing ring; 9. Rib; 10. Corrosion-resistant coating; 11. One-way valve; 12. Transparent viewing window; 13. Drive motor; 14. Stirring rod; 15. Flip-top sealing door. Detailed Implementation

[0029] The embodiments of this disclosure will now be described in detail with reference to the accompanying drawings.

[0030] The following specific examples illustrate the implementation of this disclosure. Those skilled in the art can easily understand other advantages and effects of this disclosure from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of this disclosure, and not all of them. This disclosure can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this disclosure. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in this disclosure, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this disclosure.

[0031] It should be noted that various aspects of embodiments within the scope of the appended claims are described below. It will be apparent that the aspects described herein can be embodied in a wide variety of forms, and any particular structure and / or function described herein is merely illustrative. Based on this disclosure, those skilled in the art will understand that one aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number of aspects set forth herein can be used to implement the device and / or practice the method. Additionally, this device and / or method can be implemented using structures and / or functionalities other than one or more of the aspects set forth herein.

[0032] It should also be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this disclosure. The drawings only show the components related to this disclosure and are not drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0033] Furthermore, specific details are provided in the following description to facilitate a thorough understanding of the examples. However, those skilled in the art will understand that the described aspects can be practiced without these specific details.

[0034] like Figure 1 and Figure 2 As shown, a waste liquid treatment mechanism for a photopolymer printer according to this application includes a waste liquid collection tank 1, a scraper 2, a filter screen 3, an inclined guide plate 4, and a magnetic adsorption component 5.

[0035] The waste liquid collection tank 1 is located at the bottom of the mechanism and is equipped with a scraper 2, a filter screen 3, and an inclined guide plate 4 to collect, filter, and guide residual resin. In addition, a magnetic adsorption component 5 is provided near the waste liquid outlet on the inclined guide plate 4, and a set of stirring rods 14 is provided to enhance the removal capacity of ferromagnetic impurities.

[0036] Waste liquid collection tank 1 is used to contain residual resin discharged from the UV curing printer. The interior of waste liquid collection tank 1 adopts a tapered structure design, which increases the space utilization of the relatively small bottom area of ​​the container to a certain extent, allowing the liquid to smoothly collect to the bottom and reducing the possibility of resin stagnation in the high and wide parts.

[0037] The scraper 2 is located at the top of the waste liquid collection tank 1 and can move vertically. Specifically, the scraper 2 moves up and down along the wall of the waste liquid collection tank 1, pushing and scraping the residual resin in the tank downwards through physical contact. The movement of the scraper 2 not only promotes the flow of resin but also prevents it from solidifying with the inner wall.

[0038] To intercept large particles carried in the resin, the facility also places a filter screen 3 inside the waste liquid collection tank 1. The filter screen 3 is horizontally positioned within a specified height range. It can block larger particles while allowing purer resin components to pass through its pores into subsequent purification processes.

[0039] The inclined guide plate 4 is fixed to one side of the bottom of the waste liquid collection tank 1 and tilts in the opposite direction. This installation position allows residual tree fins to slide down the surface under their own weight until they reach the lowest point, ensuring that all the liquid collects in one place for discharge. To prevent adhesion due to friction, protruding ridges 9 are provided on the surface of the inclined guide plate 4 (see details). Figure 3 ).

[0040] For the removal of foreign objects containing ferromagnetic particles, such as Figure 4 As shown, a magnetic adsorption component 5 is installed near the end of the inclined guide plate 4. The selection of magnetic materials and the presence of a corresponding strength field can attract such particles and cause them to concentrate and adhere to the surrounding surface. To enhance the adsorption efficiency, a stirring rod 14 system is arranged next to it: the drive motor 13 operates periodically to drive the stirring rod 14 to rotate, which helps to disperse the originally agglomerated iron debris while generating eddy current disturbance.

[0041] Through these design measures, the aforementioned waste liquid treatment mechanism effectively optimizes the entire containment system, maximizing the recovery of reusable resin resources while ensuring good flowability and filtration. Firstly, a rational layout and shape modification ensure that all liquids flowing into the system are guided to the lowest possible point for final discharge; simultaneously, various treatment methods are used to remove harmful impurities and improve product quality.

[0042] In one embodiment, see [specific example] Figure 2 The waste liquid collection tank 1 of a UV curing printer residual liquid treatment mechanism disclosed in this application has an anti-slip textured structure 6 on its inner wall. This anti-slip textured structure 6 is located on the inner surface of the waste liquid collection tank 1, and its main function is to prevent excessive resin from adhering to the inner wall of the waste liquid collection tank 1 during resin inflow, facilitating subsequent cleaning and drainage operations. By setting the anti-slip texture, the amount of residual resin can be significantly reduced, and the flow effect of the waste liquid can be improved, ensuring that the resin flows more smoothly into the lower area. In addition, the anti-slip textured structure 6 can also increase friction, preventing accidental splashing or overflow of liquid inside the tank due to shaking, thus improving the safety and stability of the overall device.

[0043] Specifically, this can be achieved by processing the inner wall to create an anti-slip texture. For example, knurling, laser etching, or other similar methods can be used to generate regularly arranged textures. In the installation location, the anti-slip texture should cover the entire effective area of ​​the inner wall of the waste liquid collection tank 1, ensuring that the resin comes into contact with these textures during its flow, thus achieving the desired effect. This design not only facilitates waste liquid discharge but also benefits equipment cleaning and maintenance.

[0044] In one embodiment, the waste liquid collection tank 1 of the residual liquid treatment mechanism for a photopolymer printer of this application is provided with a discharge port at the bottom, and a one-way valve 11 is installed at the discharge port (see...). Figure 2The one-way valve 11 effectively controls the discharge of waste liquid, ensuring that the liquid in the waste liquid collection tank 1 will not flow back or leak when it is not needed, thus improving the safety and stability of the system. The waste liquid collection tank 1 is located at the bottom of the entire mechanism and has a tapered internal structure, allowing the waste liquid to flow smoothly to the discharge port. An inclined guide plate 4 is also arranged inside the tank, guiding the accumulated waste liquid in the tank towards the lowest discharge port.

[0045] Specifically, the one-way valve 11 is typically designed with a spring and a valve core. When the waste liquid pressure is sufficient to overcome the spring's restoring force, the valve opens to discharge the liquid; conversely, when the internal pressure decreases, the spring returns to its original position, closing the valve to prevent backflow. For example, in one embodiment, the spring force parameter inside the one-way valve 11 or the outlet size can be adjusted to adapt to different operating conditions, ensuring that the waste liquid discharge process during the operation of the UV curing printer is always smooth and safe.

[0046] In one embodiment, such as Figure 2 As shown, the waste liquid collection tank 1 of a UV curing printer waste liquid treatment mechanism of this application has a transparent viewing window 12 attached to its outer side. This design allows the user to directly observe the waste liquid collection status through the transparent viewing window 12 without opening the device, ensuring timely maintenance and cleaning. The transparent viewing window 12 is made of a high-strength transparent material, such as polycarbonate or plexiglass, which has excellent impact resistance and chemical corrosion resistance. It is firmly installed on the outer wall of the waste liquid collection tank 1, and is usually sealed using adhesives or embedded fixing structures to prevent liquid leakage.

[0047] The transparent viewing window 12 is carefully positioned to maximize observation of changes in the internal liquid level, allowing for timely assessment of whether cleaning or replacement is needed. Its size also strikes a balance between aesthetics and practicality, without compromising the overall operation and stability of the equipment. Furthermore, for enhanced visibility, the area around the window can be frosted or clearly marked to highlight important markings or warning information.

[0048] For example, a nested assembly method can be used to mount the transparent viewing window 12 onto the waste liquid collection tank 1. First, a collection tank body with a concave frame is prepared, and appropriate space is reserved in the corresponding area to accommodate the transparent material. Then, a suitable adhesive method or snap-fit ​​method is selected to tightly bond the two together, thereby ensuring that the transparent viewing window 12 remains stable throughout the entire operating cycle and does not interfere with the normal operation of other components.

[0049] In one embodiment, the waste liquid collection tank 1 of a photopolymer printer waste liquid treatment mechanism of this application is equipped with a flip-top closing door 15 at its top opening (see...). Figure 1This design effectively prevents external contaminants from entering the waste liquid collection tank 1, while facilitating cleaning and maintenance when necessary. The sealing door 15 uses a flip-top connection structure with the waste liquid collection tank 1, ensuring smooth opening and closing during use. When closed, the door fits tightly against the waste liquid collection tank 1, ensuring a tight seal. To achieve smooth operation and a good seal, the flip-top sealing door 15 is hinged to the top edge of the waste liquid collection tank 1 and equipped with a locking device to secure its closed position. The surface of the sealing door is specially treated to prevent residual liquid or impurities from adhering.

[0050] In terms of specific technical implementation, the installation between the closed door and the waste liquid collection tank 1 needs to consider factors such as material matching, dimensional tolerances, and the selection of connectors. For example, the closed door and hinges can be made of corrosion-resistant stainless steel, and the sealing effect can be improved by using rubber sealing rings 8, thereby extending the service life of the equipment and ensuring safety. The drive part relies on manual operation or a small hydraulic / pneumatic device to control the opening and closing of the closed door. After the closed door is closed, it is held in place by a mechanical lock or other similar locking components, thereby achieving a stable and reliable sealing purpose.

[0051] In one embodiment, see Figure 2 and Figure 5 The scraper 2 of the waste liquid treatment mechanism for a UV curing printer disclosed in this application has an elastic scraper 7 at its lower end. This structural design ensures that the scraper 2 can better remove resin droplets remaining on the tank wall as it moves up and down along the top of the waste liquid collection tank 1. The combined use of the scraper 2 and the elastic scraper 7 significantly improves the cleaning efficiency during the waste liquid collection process and prevents resin from adhering to the inner wall of the container and affecting subsequent operations. The elastic scraper 7 has flexibility and a certain degree of resilience, so it can adapt to changes in the shape of the tank wall while maintaining a constant pressure on the inner wall, resulting in a more thorough cleaning.

[0052] For example, the elastic scraper 7 is installed at the lower end of the scraper 2. The scraper 2 is fixed to a bracket that can slide along the top of the waste liquid collection tank 1. The bracket achieves the vertical movement of the scraper 2 through a guide rail or other mechanical guiding device. After each photopolymerization printing is completed, the bracket drives the scraper 2 down to the lowest point. During this stroke, the elastic scraper 7 is in continuous contact with the inner wall of the waste liquid collection tank 1 and moves tightly against the inner wall by its own elasticity, effectively collecting residual resin liquid and pushing it back to the bottom of the tank for centralized recycling or filtration. For example, in a complete cleaning cycle, the drive system slowly lowers the scraper 2 until it reaches the bottom position, and then reverses and lifts it back to its original position, ensuring that residual material in every corner is removed to the maximum extent. Each step in this process is automatically coordinated by the control system to ensure the consistency and accuracy of the operation.

[0053] In one embodiment, the filter 3 of the waste liquid treatment mechanism for a UV-curing printer of this application consists of multiple layers of filter screens 3 with different mesh sizes. These filter screens 3 are arranged with the mesh size gradually increasing from top to bottom. This design ensures that larger particles of impurities can be intercepted by the top layer filter screen 3, while smaller particles can be effectively blocked by the finer filter screens 3 after passing through each layer of filtration. Through such a layered filtration system, the entire mechanism can comprehensively and efficiently intercept impurities of various sizes in the waste liquid.

[0054] Specifically, the structure is installed inside the waste liquid collection tank 1. The multi-layered arrangement of the filter screen 3 ensures a more rational and efficient gradual purification process as the liquid resin flows from top to bottom. In practical applications, this design is particularly suitable for working environments requiring high-precision waste liquid treatment to protect subsequent processing stages. Different mesh sizes of the filter screen 3 are typically selected based on specific usage requirements; for example, the top layer might be a 100-mesh filter, the middle layer a 200-mesh filter, and the bottom layer a finer filter such as a 300-mesh filter.

[0055] In one embodiment, to construct a stable multi-layer filter 3 device, a sparser top filter 3 layer is installed first, followed by a denser layer of target filter units stacked below it. All layers are tightly fixed to the inner wall of the waste liquid collection tank 1, resulting in minimal and uniform gaps between each level. Furthermore, to further enhance the reliability and efficiency of the device, sealing materials can be used to reinforce the layers, preventing incompletely filtered substances from bypassing the current level's screening and directly permeating to lower levels. Moreover, this modular design provides great convenience for operators when replacing or cleaning the filter 3. For example, operators can quickly disassemble and install single or multiple filter 3 layers for individual maintenance or inspection.

[0056] In one embodiment, the filter screen 3 of a photopolymer printer residual liquid treatment mechanism of this application is provided with a sealing ring 8 at its edge (see...). Figure 2 Through this structural feature, the sealing ring 8 is in close contact with the inner wall of the waste liquid collection tank 1, preventing resin leakage or direct passage without adequate filtration, and ensuring that the entire filtration process is efficient and complete.

[0057] The design of the sealing ring 8 not only improves the overall sealing performance of the device but also effectively adapts to different working environments. The filter screen 3, as the main component for intercepting impurities, is typically installed inside the waste liquid collection tank 1 and spans the entire cross-sectional area, serving to block large particles of impurities. The sealing ring 8 at its edge further enhances the sealing effect at the edge, ensuring that no residual liquid leaks from the edge gaps of the filter screen 3. The sealing ring 8 is made of a material with good elasticity and corrosion resistance, ensuring long-term stable operation without affecting the functional integrity of the overall structure. This design allows large particles of impurities in the waste liquid to be completely blocked when passing through the filter screen 3, ensuring that the liquid flowing into the system below is purer. The filtered resin slides down the inclined guide plate 4 to a lower position for subsequent processing or storage, while preventing unfiltered substances from mixing in.

[0058] Specifically, during assembly, the sealing ring 8 is pre-installed at the edge of the filter screen 3, and the two are tightly joined as a single unit before being placed into the predetermined channel in the waste liquid collection tank 1. This ensures both sealing performance and easy disassembly for cleaning and maintenance. The material of the sealing ring 8 is selected to be compatible with the working environment and to have sufficient resilience to maintain a long-term effective seal, ensuring the normal operation of the system.

[0059] In one embodiment, as shown in Figure Figure 3 and Figure 4 As shown, the magnetic adsorption component 5 of the waste liquid treatment mechanism for a UV curing printer of this application is externally covered with a corrosion-resistant coating 10. This coating is introduced to protect the magnetic adsorption component 5 from corrosion by chemicals, especially resin residues and their dissolved components, during long-term use, ensuring its long-term stable operation. Furthermore, this design can reduce functional degradation and surface damage caused by prolonged contact with waste liquid, extending its service life.

[0060] Specifically, this coating is typically made of materials with good corrosion resistance, such as Teflon or similar polytetrafluoroethylene materials. These materials effectively form a barrier to isolate harmful chemicals, thus providing effective protection. In this way, not only is the working efficiency of the magnetic adsorption component 5 maintained, but the overall reliability and durability of the device are also improved.

[0061] For example, in one possible technical implementation, the corrosion-resistant coating 10 can be directly applied to the surface of the magnetic adsorption component 5, ensuring complete coverage of the entire adsorption component. During installation, the magnetic adsorption component 5 is placed near the waste liquid outlet on the inclined guide plate 4, with a stirring rod 14 on one side and fixedly assembled to the drive motor 13 via a connector. During operation, the drive motor 13 periodically rotates the stirring rod 14. This structure and process effectively ensure the efficient operation of both the component and the system.

[0062] In actual operation, when this device is in use, residual resin from the UV curing printer enters the waste liquid collection tank 1 through the top. A scraper 2 moves up and down along the tank wall, scraping away residual resin adhering to the inner wall to prevent blockage and overflow. The resin flows into the waste liquid collection tank 1, first passing through a filter screen 3 to remove large particles, ensuring smooth subsequent processing. Then, the resin flows along an inclined guide plate 4 to the lower bottom area, where the surface protrusions 9 further guide and stratify the resin. When the resin flows near the waste liquid outlet, the magnetic adsorption component 5 removes ferromagnetic particles from the resin through a magnetic field, ensuring purer discharged resin. Furthermore, the drive motor 13 connected to the stirring rod 14 periodically rotates the stirring rod 14 to prevent ferromagnetic particles from accumulating in one place, ensuring processing efficiency and effectiveness. Finally, the tapered structure design facilitates resin concentration at the bottom and smooth discharge, effectively improving the waste liquid treatment effect and equipment stability throughout the entire process.

[0063] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of those different embodiments or examples.

[0064] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0065] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this application, and these should all be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A residual liquid treatment mechanism for a photopolymer printer, characterized in that, include: Waste liquid collection tank (1) is used to contain residual resin discharged from the UV curing printer; Scraper (2) is set on top of waste liquid collection tank (1) and can move up and down along the tank wall; The filter screen (3) is placed inside the waste liquid collection tank (1) to intercept large particulate impurities in the resin. An inclined guide plate (4) is located at the bottom of the waste liquid collection tank (1) and is inclined downward to guide the resin into the low area of ​​the waste liquid collection tank (1). The magnetic adsorption component (5) is installed on the inclined guide plate (4) near the waste liquid outlet and is used to remove ferromagnetic particles in the resin by means of a magnetic field. The waste liquid collection tank (1) has a tapered internal structure; The inclined guide plate (4) has protruding ridges (9) on its surface; and A stirring rod (14) is provided on one side of the magnetic adsorption component (5), and a drive motor (13) is connected to the stirring rod (14). The drive motor (13) periodically drives the stirring rod (14) to rotate.

2. The residual liquid treatment mechanism for a photopolymer printer according to claim 1, characterized in that: The inner wall of the waste liquid collection tank (1) has an anti-slip textured structure (6).

3. The residual liquid treatment mechanism for a photopolymer printer according to claim 2, characterized in that: The waste liquid collection tank (1) is equipped with a one-way valve (11) at the bottom outlet.

4. The residual liquid treatment mechanism for a photopolymer printer according to claim 3, characterized in that: The waste liquid collection tank (1) has a transparent viewing window (12) attached to its outside.

5. The residual liquid treatment mechanism for a photopolymer printer according to claim 4, characterized in that: The waste liquid collection tank (1) is equipped with a flip-top closed door (15) at the top opening.

6. The residual liquid treatment mechanism for a photopolymer printer according to claim 1, characterized in that: The lower end of the scraper (2) is provided with an elastic scraper blade (7).

7. The residual liquid treatment mechanism for a photopolymer printer according to claim 1, characterized in that: The filter screen (3) is composed of multiple layers of filter screens with different mesh numbers, with the mesh number gradually increasing from top to bottom.

8. The residual liquid treatment mechanism for a photopolymer printer according to claim 7, characterized in that: The filter screen (3) is provided with a sealing ring (8) at its edge.

9. The residual liquid treatment mechanism for a photopolymer printer according to claim 1, characterized in that: The magnetic adsorption component (5) is covered with a corrosion-resistant coating (10).

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