Photocuring 3D printer scraper and ray machine coaxial linkage device

By designing a coaxial linkage device between the scraper and the photomechanical system in the photopolymer 3D printer, the problem of the scraper and the curing light source not being on the same moving axis is solved, achieving synchronous movement, improving printing efficiency and accuracy, and enhancing print quality.

CN223493889UActive Publication Date: 2025-10-31SHENZHEN DAJIANG ADDITIVE TECH CO LTD
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Patent Information

Application Number
CN202423042421.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-10
Publication Date
2025-10-31
Estimated Expiration
2034-12-10

AI Technical Summary

Technical Problem

In existing photopolymer 3D printers, the squeegee and the curing light source are not on the same moving axis. This means that during the printing process, it is necessary to wait for the squeegee to smooth the resin before exposure, which increases printing time and reduces efficiency.

Method used

Design a coaxial linkage device for the scraper and photomechanical system of a photopolymer 3D printer. The scraper and the curing light source device are mounted on the same moving axis through a linear motion module and connectors to achieve synchronous movement.

Benefits of technology

By using coaxial linkage, printing accuracy is ensured, printing time is effectively saved, printing efficiency is improved, and high-quality 3D printing results are achieved.

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Abstract

The utility model relates to the technical field of photocuring 3D printers, in particular to a photocuring 3D printer scraper and ray machine coaxial linkage device which comprises a linear motion module, a connecting piece and a scraper piece, the linear motion module comprises a lead screw frame body and a motor base, the motor base is arranged at the end of the lead screw frame body, a sliding block is arranged on the surface of the top end of a linear guide rail, and the connecting piece is arranged on the sliding block. A connecting base is arranged on the surface of the top end of the sliding block, a ray machine body is arranged in the middle of the surface of the top end of the connecting base, connecting pieces are arranged on the two sides of the surface of the top end of the connecting base, scraper pieces are arranged on the surfaces of the top ends of the connecting pieces, and scraper connecting blocks are arranged at the two ends of each scraper piece. The printing precision and efficiency can be ensured, the printing time can be effectively saved, and the printing efficiency is improved. And the high-quality 3D printing effect is achieved by reasonably designing the scraper, accurately controlling the movement track of the scraper and regularly maintaining the scraper, and the overall practical performance is improved.
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Description

Technical Field

[0001] This utility model relates to the field of photopolymer 3D printer technology, and in particular to a photopolymer 3D printer scraper and photomechanical coaxial linkage device. Background Technology

[0002] A search of existing Chinese patent document CN221292294U discloses a scraper device for a photopolymer 3D printer, comprising a housing, with threaded cones fixedly connected to the left and right sides of the rear of the housing, a hollow groove in the middle of the threaded cones, a threaded rod rotatably connected to the middle of the hollow groove, a sliding block rotatably connected to the outside of the threaded rod, connecting blocks fixedly connected to the left and right sides of the sliding block, a support rod rotatably connected to the middle of each connecting block via a fixed post, a slot in the middle of the housing, and a sliding rod slidably connected to the middle of the slot. The device, through the sliding rod, first connecting block, second connecting block, support post, sliding post, first spring, and other structures, allows the scraper body to be placed in the housing, with the sliding post inserted into the fixed groove for fixation. This eliminates the need for screws, reduces material consumption, facilitates installation, and provides a secure fixation function.

[0003] Coaxial alignment of the squeegee and the optical engine in a photopolymer 3D printer is crucial for ensuring printing accuracy and efficiency. In sunken photopolymer 3D printing, the squeegee and curing light source are typically not on the same moving axis, or the curing light source is fixed. During printing, the curing light source must wait for the squeegee to smooth the resin before it can perform exposure, which is time-consuming, increases printing time, and reduces efficiency. Utility Model Content

[0004] The technical problem this invention aims to solve is to overcome the shortcomings of existing technologies and provide a coaxial linkage device between the squeegee and the optical engine in a photopolymer 3D printer. This addresses the issue that in sunken photopolymer 3D printing, the squeegee and curing light source are typically not on the same moving axis, or the curing light source is fixed. During printing, the curing light source must wait for the squeegee to complete the resin leveling process before exposure, which is time-consuming, increases printing time, and reduces efficiency.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] This utility model discloses a coaxial linkage device for a scraper and photomechanical system in a photopolymerization 3D printer, comprising a linear motion module, connecting parts, and a scraper component. The linear motion module includes a lead screw frame and a motor base, with the motor base located at the end of the lead screw frame. A linear guide rail is provided on the inner side of the top of the lead screw frame, and a slider is provided on the top surface of the linear guide rail. A connecting seat is provided on the top surface of the slider, and a photomechanical body is provided in the middle of the top surface of the connecting seat. Connecting parts are provided on both sides of the top surface of the connecting seat, and a scraper component is provided on the top surface of the connecting parts. Scraper connecting blocks are provided at both ends of the scraper component.

[0007] As a further description of the above technical solution:

[0008] The lead screw frame and motor base are fixedly connected, the lead screw frame and linear guide rail are spliced ​​together, the linear guide rail and slider are spliced ​​together, and the inner side of the slider is provided with a groove corresponding to the linear guide rail to facilitate horizontal movement of the slider.

[0009] As a further description of the above technical solution:

[0010] The slider and the connecting seat are assembled by splicing. The connecting seat and the optical engine body are fixedly connected. The connecting seat and the connecting piece are fixedly connected. The connecting piece is set as a trapezoidal plate. The connecting piece is a scraper piece that is fixedly connected. They are all arranged in two symmetrical sets. The scraper piece and the scraper connecting piece are fixedly connected. The scraper connecting piece is arranged in two symmetrical sets.

[0011] This utility model has the following beneficial effects:

[0012] In this invention, by designing and mounting the scraper and curing light source device on the same moving axis, printing accuracy and efficiency can be ensured, effectively saving printing time and improving printing efficiency. Through reasonable scraper design, precise control of its movement trajectory, and regular maintenance, high-quality 3D printing results can be achieved, improving overall practicality. Attached Figure Description

[0013] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] In the diagram: 1. Linear motion module; 2. Connector; 3. Scraper; 4. Lead screw frame; 5. Motor base; 6. Linear guide rail; 7. Slider; 8. Connector; 9. Opto-mechanical body; 10. Scraper connecting block. Detailed Implementation

[0016] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0017] In the attached diagram, all identical reference numerals refer to the same components.

[0018] Example 1

[0019] Reference Figure 1 This utility model provides an embodiment of a photopolymerization 3D printer scraper and photomechanical coaxial linkage device, including a linear motion module 1, a connector 2, and a scraper component 3. The linear motion module 1 includes a lead screw frame 4 and a motor base 5, with the motor base 5 located at the end of the lead screw frame 4. A linear guide rail 6 is provided on the inner side of the top of the lead screw frame 4. A slider 7 is provided on the top surface of the linear guide rail 6. A connecting seat 8 is provided on the top surface of the slider 7. A photomechanical body 9 is provided in the middle of the top surface of the connecting seat 8. Connectors 2 are provided on both sides of the top surface of the connecting seat 8. A scraper component 3 is provided on the top surface of the connecting component 2. Scraper connecting blocks 10 are provided at both ends of the scraper component 3.

[0020] The lead screw frame 4 and the motor base 5 are fixedly connected. The lead screw frame 4 and the linear guide rail 6 are spliced ​​and assembled. The linear guide rail 6 and the slider 7 are spliced ​​and assembled. The inner side of the slider 7 is provided with a groove corresponding to the linear guide rail 6 to facilitate the horizontal movement of the slider 7.

[0021] The slider 7 and the connecting seat 8 are assembled by splicing. The connecting seat 8 and the optical engine body 9 are fixedly connected. The connecting seat 8 and the connecting piece 2 are fixedly connected. The connecting piece 2 is set as a trapezoidal plate. The connecting piece 2 and the scraper piece 3 are fixedly connected. They are all arranged in two symmetrical sets. The scraper piece 3 and the scraper connecting piece 2 are fixedly connected. The scraper connecting piece 2 is arranged in two symmetrical sets.

[0022] Specifically, its structure consists of a linear motion module 1, a connector 2, a scraper component 3, a lead screw frame 4, a motor base 5, a linear guide rail 6, a slider 7, a connecting seat 8, a photomechanical body 9, and a scraper connector 10, forming a coaxial linkage device between the scraper and the photomechanical system of a photopolymer 3D printer. The linear motion module 1 drives the slider 7 to perform reciprocating linear motion, thereby causing the upper part of the slider 7 to perform synchronous reciprocating linear motion. The connector 2 connects and fixes the connecting seat 8 and the two scraper components 3. The scraper components 3 are used to smooth the resin. The lead screw frame 4 fixes the lead screw, and the motor seat 5 provides a fixed connection and power supply. The linear guide rail 6 enables the slider 7 to complete linear reciprocating motion. The slider 7 fixes the linear motion module 1 and the connecting seat 8, and drives the linear motion module 1 and the connecting seat 8 to reciprocate linearly together. The connecting seat 8 fixes the connector 2 and the photomechanical body 9. The photomechanical body 9 is used for 3D printing curing. The scraper connector 10 connects and fixes the scraper components 3 on the two connecting seats 2. This coaxial linkage device between the scraper and the photomechanical body of the photopolymer 3D printer effectively saves printing time and improves printing efficiency.

[0023] Working principle: During use, the scraper 3 and the photomechanical body 9 are installed on a linear motion module 1. The scraper 3 is installed on both sides or one side of the photomechanical body 9. During the printing process, when the photomechanical body 9 moves from left to right, the scraper 3 first smooths the resin, and at the same time, the photomechanical body 9 begins to expose and cure the resin. When the photomechanical body 9 moves from right to left, the scraper 3 first smooths the resin, and at the same time, the photomechanical body 9 begins to expose and cure the resin. This process is repeated, effectively saving photopolymerization 3D printing time.

[0024] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A photopolymer 3D printer scraper and photomechanical coaxial linkage device, comprising a linear motion module (1), a connector (2), and a scraper component (3), characterized in that, The linear motion module (1) includes a lead screw frame (4) and a motor base (5). The motor base (5) is located at the end of the lead screw frame (4). A linear guide rail (6) is provided on the inner side of the top of the lead screw frame (4). A slider (7) is provided on the top surface of the linear guide rail (6). A connecting seat (8) is provided on the top surface of the slider (7). An optical engine body (9) is provided in the middle of the top surface of the connecting seat (8). Connecting parts (2) are provided on both sides of the top surface of the connecting seat (8). A scraper (3) is provided on the top surface of the connecting part (2). A scraper connecting block (10) is provided at both ends of the scraper (3).

2. The photopolymerization 3D printer scraper and photomechanical coaxial linkage device according to claim 1, characterized in that, The lead screw frame (4) and the motor base (5) are fixedly connected. The lead screw frame (4) and the linear guide rail (6) are spliced ​​together. The linear guide rail (6) and the slider (7) are spliced ​​together. The inner side of the slider (7) is provided with a groove corresponding to the linear guide rail (6) to facilitate the horizontal movement of the slider (7).

3. The photopolymer 3D printer scraper and photomechanical coaxial linkage device according to claim 1, characterized in that, The slider (7) and the connecting seat (8) are assembled by splicing. The connecting seat (8) and the optical engine body (9) are fixedly connected. The connecting seat (8) and the connecting piece (2) are fixedly connected. The connecting piece (2) is a trapezoidal plate. The connecting piece (2) is a scraper piece (3) which is fixedly connected. Both are arranged in two symmetrical sets. The scraper piece (3) and the scraper connecting piece (2) are fixedly connected. The scraper connecting piece (2) is arranged in two symmetrical sets.

Citation Information

Patent Citations

  • Scraper device of photocuring 3D printer

    CN221292294U