A printer resin vat scraper self-cleaning assembly

By using a cleaning motor and a cleaning screw drive mechanism, the printer resin tank scraper can be easily cleaned and quickly replaced, solving the problem of low maintenance efficiency caused by the fixed connection of the rubber scraper in the existing technology, and improving the maintenance efficiency and cleaning effect of the equipment.

CN224528029UActive Publication Date: 2026-07-21QINGDAO FUTURE INTELLIGENCE 3D PRINTING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
QINGDAO FUTURE INTELLIGENCE 3D PRINTING CO LTD
Filing Date
2025-08-29
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

In existing printer resin scraper self-cleaning assemblies, the fixed connection method of the rubber scraper makes replacement inconvenient, maintenance inefficient, and difficult to meet the needs of rapid repair.

Method used

The drive mechanism, consisting of a cleaning motor and a cleaning lead screw, drives the cleaning component to move back and forth. By optimizing the installation method, the cleaning component can be easily disassembled at both ends, enabling convenient replacement.

Benefits of technology

It improves the maintenance efficiency of the cleaning components, ensures the cleanliness of the scraper blades, and meets the actual needs of rapid maintenance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a printer resin tank scraper self -cleaning subassembly relates to printing technical field, include: tool rest structure, the inside rotation of tool rest structure is installed with cleaning screw rod, the left side fixed mounting of tool rest structure has cleaning motor, the inside sliding of tool rest structure is installed with cleaning sliding block, the bottom fixed mounting of cleaning sliding block has the connecting sliding sleeve, the bottom of connecting sliding sleeve is equipped with the connecting slot, the inside front and back of connecting slot is equipped with the contraction sliding slot, when the cleaning piece runs to the limit position of left and right two ends, need not to dismantle any correlation parts, can complete the dismantling only through simple pullout action, solved the problem that the rubber scraper plate for cleaning is many and adopts the mode of direct fixing to install in the lower end of connecting rod, although this kind of installation structure has the simple direct superiority, but when the rubber scraper plate needs to be replaced in later period, the fixed connection mode leads to the problem that connecting rod and rubber scraper plate cannot separate conveniently.
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Description

Technical Field

[0001] This utility model relates to the field of printing technology, and in particular to a self-cleaning component for a printer resin tank scraper. Background Technology

[0002] 3D printers are typically equipped with resin scrapers. The movement of the scraper quickly levels the resin surface, rapidly removing protruding material and filling in gaps and depressions, significantly improving coating efficiency. The blade of the scraper is the main working area. During prolonged scraping, some poorly flowing material may adhere to the blade surface. If this is not cleaned in time, the scraper's ability to level the resin surface will decrease, affecting the printing quality. Therefore, cleaning components are needed to clean the blade. For example, patent application number CN202321618003.2 discloses a vacuum adsorption scraper self-cleaning device. This device can perform timely self-cleaning of the scraper blade and further reduce the presence of air bubbles in the liquid cavity, improving print quality.

[0003] However, in existing printer resin scraper self-cleaning assemblies such as those mentioned above, the rubber scraper used for cleaning is mostly installed directly on the lower end of the connecting rod. Although this installation structure has the advantage of being simple and direct, when the rubber scraper needs to be replaced later, the fixed connection means that the connecting rod and the rubber scraper cannot be easily separated, resulting in low maintenance efficiency and difficulty in meeting the actual needs of rapid maintenance. Summary of the Invention

[0004] This utility model relates to a self-cleaning assembly for a printer resin tank scraper. It comprises a cleaning motor and a cleaning lead screw forming a driving mechanism. This mechanism drives the cleaning component to move back and forth, cleaning the scraper structure through this reciprocating movement. This ensures the cleanliness of the scraper blade and prevents adhering substances from affecting the scraping effect. This utility model improves the installation method of the cleaning component. When the cleaning component is at either end, it can be easily removed by pulling it down. Compared to the fixed connection method used in comparison documents, this method facilitates the replacement of the cleaning component, improves the maintenance efficiency of this cleaning assembly, and meets the practical needs of rapid repair.

[0005] In a first aspect, this utility model provides a self-cleaning assembly for a printer resin tank scraper, specifically comprising: a scraper holder structure, wherein a cleaning screw is rotatably mounted inside the scraper holder structure; a cleaning motor is fixedly mounted on the left side of the scraper holder structure; a scraper structure is fixedly mounted at the bottom positions of the front and rear sides of the scraper holder structure; a cleaning slider is slidably mounted inside the scraper holder structure; a connecting sleeve is fixedly mounted at the bottom of the cleaning slider; a connecting slot is provided at the bottom end of the connecting sleeve; a shrinking groove is provided on the front and rear sides of the connecting slot; a positioning plug is slidably mounted inside the shrinking groove; a limit rod is fixedly mounted at the center position on the outer side of the positioning plug; a connecting plate is inserted into the connecting slot; positioning holes are provided on the front and rear sides of the connecting plate; the positioning holes are hemispherical; a cleaning component is fixedly mounted at the bottom end of the connecting plate; and limit plates are fixedly mounted on the front and rear sides of the bottom of the scraper holder structure.

[0006] Furthermore, the output end of the cleaning motor is splinedly connected to the left end of the cleaning lead screw.

[0007] Furthermore, the cleaning slider is also connected to the cleaning screw via threads.

[0008] Furthermore, the inner end of the positioning plug has a hemispherical structure.

[0009] Furthermore, one end of the positioning plug is embedded in the outer side of the spring; the other end of the spring is embedded in the inner outer end of the shrinkage groove.

[0010] Furthermore, the hemispherical structure of the positioning plug is inserted into the positioning socket.

[0011] Furthermore, the cleaning component is in close contact with the scraper structure.

[0012] This utility model provides a self-cleaning component for a printer resin tank scraper, which has the following beneficial effects: 1. The drive mechanism, consisting of a cleaning motor and a cleaning lead screw, can drive the cleaning component to reciprocate in the left and right direction. Through continuous reciprocating motion, the scraper structure is thoroughly cleaned, ensuring that the blade remains clean at all times and effectively preventing the adhesion of substances from interfering with the scraping effect.

[0013] 2. This utility model optimizes the installation structure of the cleaning component. When the cleaning component moves to the extreme positions at both ends, it can be disassembled without disassembling any related parts, simply by pulling it down. Compared with the fixed connection installation method in the prior art, this design significantly simplifies the replacement process of the cleaning component, greatly improves the maintenance efficiency of the cleaning components, and can better meet the actual needs of rapid equipment maintenance. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.

[0015] The accompanying drawings described below are only related to some embodiments of the present invention and are not intended to limit the scope of the present invention.

[0016] In the attached diagram: Figure 1 A schematic diagram of the overall structure of this utility model is shown; Figure 2 This utility model illustrates Figure 1 Another perspective structural diagram; Figure 3 This invention provides a schematic diagram of the scraper structure in the removal state. Figure 4 A schematic diagram of the cleaning screw and cleaning components of this utility model is shown. Figure 5 A schematic diagram of a half-section of the connecting sleeve of this utility model is shown; List of reference numerals 1. Blade holder structure; 2. Cleaning screw; 3. Cleaning motor; 4. Scraper structure; 5. Cleaning slider; 6. Connecting sleeve; 7. Connecting slot; 8. Shrinking groove; 9. Positioning plug; 10. Spring; 11. Limiting rod; 12. Connecting insert plate; 13. Positioning socket; 14. Cleaning component; 15. Limiting plate. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the described embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0018] Please refer to Figures 1 to 5 Example 1: This utility model discloses a self-cleaning component for a printer resin tank scraper, comprising: a scraper structure 1, a cleaning screw 2 rotatably mounted inside the scraper structure 1; a cleaning motor 3 fixedly mounted on the left side of the scraper structure 1; scraper structures 4 fixedly mounted at the bottom positions on the front and rear sides of the scraper structure 1; a cleaning slider 5 slidably mounted inside the scraper structure 1; a connecting sleeve 6 fixedly mounted at the bottom of the cleaning slider 5; a connecting slot 7 opened at the bottom end of the connecting sleeve 6; shrink grooves 8 opened on the front and rear sides of the connecting slot 7; a positioning plug 9 slidably mounted inside the shrink grooves 8; a limit rod 11 fixedly mounted at the center position on the outer side of the positioning plug 9; a connecting plate 12 inserted into the connecting slot 7; positioning holes 13 opened on the front and rear sides of the connecting plate 12; and positioning holes 13. It has a hemispherical structure; a cleaning component 14 is fixedly installed at the bottom of the connecting plate 12; limit plates 15 are fixedly installed on the front and rear sides of the bottom of the blade holder structure 1. After the cleaning motor 3 is started, it drives the cleaning screw 2 to rotate alternately clockwise and counterclockwise, which in turn drives the cleaning slider 5, the connecting sleeve 6, the connecting plate 12 and the cleaning component 14 to move back and forth in the left and right directions. Through the continuous reciprocating action of the cleaning component 14, the scraper structure 4 can be cleaned efficiently. When the cleaning component 14 moves to the non-working position at the left and right ends, the limit rod 11 is not blocked by the limit plate 15. At this time, you only need to pull the cleaning component 14 down with a little force to easily remove the connecting plate 12 from the connecting slot 7, and quickly complete the disassembly and replacement of the cleaning component 14 in the non-working state. The whole operation is convenient and efficient. When the cleaning component 14 reaches its extreme position at both ends, it can be disassembled without removing any associated parts, simply by pulling it down.

[0019] In Example 2, based on Example 1, the output end of the cleaning motor 3 is splinedly connected to the left end of the cleaning screw 2; the cleaning slider 5 is also connected to the cleaning screw 2 via threads; the inner end of the positioning plug 9 has a hemispherical structure, and the cleaning motor 3 and the cleaning screw 2 form a drive mechanism. This drive mechanism can drive the cleaning component 14 to move back and forth, so that the cleaning component 14 can clean the scraper structure 4 through reciprocating movement, ensuring the cleanliness of the blade of the scraper structure 4 and preventing the adhering substances from affecting the scraping effect of the scraper structure 4. By starting the cleaning motor 3, it drives the cleaning screw 2 to rotate clockwise and counterclockwise. During the rotation, the cleaning screw 2 drives the cleaning slider 5, the connecting sleeve 6, the connecting plate 12 and the cleaning component 14 to move back and forth, so that the cleaning component 14 can clean the scraper structure 4 through the back and forth movement.

[0020] In Example 3, based on Example 2, one end of a spring 10 is embedded in the outer side of the positioning plug 9; the other end of the spring 10 is embedded in the inner outer end of the shrinkage groove 8; the hemispherical structure of the positioning plug 9 is inserted into the positioning socket 13; the cleaning component 14 is in close contact with the scraper structure 4. This utility model improves the installation method of the cleaning component 14. When the cleaning component 14 is at the left and right ends, it can be removed by simply pulling it down. Compared with the fixed connection method in the prior art, it is easier to replace the cleaning component 14, improves the maintenance efficiency of this cleaning component, and meets the actual needs of rapid inspection. When the cleaning component 14 is not in the left or right end position, the limiting rod 11 will not be blocked by the limiting plate 15. Therefore, when the cleaning component 14 moves to the non-working position at the left or right end, you only need to pull the cleaning component 14 downward with a little force to remove the connecting plate 12 from the inside of the connecting slot 7, so that the cleaning component 14 in the non-working position can be removed and replaced.

[0021] Working principle: When in use, first start the cleaning motor 3, which drives the cleaning screw 2 to rotate alternately clockwise and counterclockwise. During this process, the cleaning screw 2 will simultaneously drive the cleaning slider 5, the connecting sleeve 6, the connecting plate 12, and the cleaning component 14 to move back and forth in the left and right directions. The continuous reciprocating motion of the cleaning component 14 achieves efficient cleaning of the scraper structure 4. When the cleaning component 14 is in the non-working position at both ends, the limiting rod 11 will not be blocked by the limiting plate 15. At this time, you only need to pull the cleaning component 14 down with a little force to easily remove the connecting plate 12 from the connecting slot 7, thereby quickly completing the disassembly and replacement of the cleaning component 14 in the non-working state. The operation is convenient and efficient.

[0022] The following points should be noted in this article: 1. The accompanying drawings of this utility model embodiment only involve the structure involved in this utility model embodiment; other structures can refer to general designs.

[0023] 2. Where there is no conflict, the embodiments of this utility model and the features in the embodiments can be combined with each other to obtain new embodiments.

[0024] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A self-cleaning assembly for a printer resin tank scraper, comprising: Its features are, A blade holder structure (1) is provided, in which a cleaning screw (2) is rotatably mounted; a cleaning motor (3) is fixedly mounted on the left side of the blade holder structure (1); a scraper structure (4) is fixedly mounted at the bottom of the front and rear sides of the blade holder structure (1); a cleaning slider (5) is slidably mounted inside the blade holder structure (1); a connecting sleeve (6) is fixedly mounted at the bottom of the cleaning slider (5); a connecting slot (7) is provided at the bottom end of the connecting sleeve (6); and a retraction mechanism is provided on the front and rear sides of the connecting slot (7). The sliding groove (8) has a positioning plug (9) slidably installed inside the sliding groove (8); a limiting rod (11) is fixedly installed at the center of the outer side of the positioning plug (9); a connecting plate (12) is inserted into the connecting slot (7); positioning holes (13) are opened on the front and rear sides of the connecting plate (12); the positioning holes (13) are hemispherical; a cleaning component (14) is fixedly installed at the bottom of the connecting plate (12); a limiting plate (15) is fixedly installed on the front and rear sides of the bottom of the knife holder structure (1).

2. The printer resin tank scraper self-cleaning assembly according to claim 1, characterized in that, The output end of the cleaning motor (3) is splined to the left end of the cleaning lead screw (2).

3. The printer resin tank scraper self-cleaning assembly according to claim 1, characterized in that, The cleaning slider (5) is also connected to the cleaning screw (2) via threads.

4. The printer resin tank scraper self-cleaning assembly according to claim 1, characterized in that, The inner end of the positioning plug (9) has a hemispherical structure.

5. A printer resin tank scraper self-cleaning assembly according to claim 1, characterized in that, One end of the positioning plug (9) is embedded in the outer side of the spring (10); the other end of the spring (10) is embedded in the outer end of the shrinkage groove (8).

6. A printer resin tank scraper self-cleaning assembly according to claim 1, characterized in that, The hemispherical structure of the positioning plug (9) is inserted into the positioning socket (13).

7. A printer resin tank scraper self-cleaning assembly according to claim 1, characterized in that, The cleaning component (14) is in contact with the scraper structure (4).