Scraper synchronous feeding mechanism of photocuring 3D printer

Abstract

The utility model relates to the technical field of 3D printer synchronous feeding, in particular to a photocuring 3D printer scraper synchronous feeding mechanism which comprises a linear motion module, a coupler is arranged on the surface of one end of the linear motion module, and a linear guide rail is arranged on the inner side of the surface of one side of the linear motion module. A connecting block is arranged on the surface of the top end of the linear motion module, sliding blocks are arranged on the surfaces of the two ends of the connecting block, a scraper piece is arranged on the surface of one end of each sliding block, a heating feeding pipeline is arranged on the surface of one side of each scraper piece, the heating feeding pipelines and a scraper are fixed to the same connecting piece through a feeding channel, and the feeding channel is fixed to one side of the scraper. When the linear motion module moves, the scraper and the feeding channel move together, meanwhile, the feeding channel starts feeding, high-viscosity resin can be effectively conveyed, rapid feeding and scraping can be achieved, and the printing precision and efficiency are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of synchronous feeding of 3D printers, in particular to a synchronous feeding mechanism of a scraper of a light-curing 3D printer. Background Art

[0002] After searching the existing Chinese patent document with announcement number CN206812445U, a 3D printer is disclosed with a synchronous feeding mechanism, including a fixed base, two feeding wheels of equal size, a driving transmission shaft, a driven transmission shaft, two synchronous gears of equal size and a stepper motor, the driving transmission shaft and the driven transmission shaft are installed on the fixed base in parallel with each other in the axis direction, the two feeding wheels are respectively installed at one end of the driving transmission shaft and the driven transmission shaft, the arc side of the feeding wheel is provided with an annular groove, the two feeding wheels are arranged side by side with a gap, and a feeding port corresponding to the diameter of the 3D printing wire is formed by the two annular grooves in the middle, the two synchronous gears are respectively installed at the other end of the driving transmission shaft and the driven transmission shaft, and mesh with each other, one end of the driving transmission shaft is connected to the rotation output end of the stepper motor, the device provides a large pushing force for the 3D printing wire, and at the same time ensures that the force on both sides of the 3D printing wire is synchronized, thereby achieving balanced feeding and improving the printing accuracy of the 3D printing wire.

[0003] Synchronous scraper feeding in a stereolithography 3D printer is crucial for ensuring printing accuracy and efficiency, encompassing aspects such as the scraper's function, synchronous feeding mechanism, design and materials, and maintenance. In Top-Down structured stereolithography 3D printing, the material replenishment method involves lowering the build platform, allowing uncured resin to flow over, and then using a scraper to assist in leveling the resin. However, this method can be difficult to level with high-viscosity resins. Alternatively, resin is fed through a piston-type feed cylinder, which is then leveled with a scraper. This method results in slower feeding speeds and reduced efficiency. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the defects of the existing technology and provide a light-curing 3D printer scraper synchronous feeding mechanism, which aims to solve the technical problem that in Top-Down structure light-curing 3D printing, the material feeding method is to sink the forming platform to allow the surrounding uncured resin to flow over, and then use the scraper to assist in scraping the resin flat. This method has the problem that high-viscosity resin cannot be scraped flat; or the resin is fed out through another piston-type feeding cylinder and scraped flat by means of a scraper. This method has a slow feeding speed and reduces the use efficiency.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] The utility model discloses a synchronous scraper feeding mechanism for a light-curing 3D printer, comprising a linear motion module, a coupling being provided on one end surface of the linear motion module, a linear guide being provided on the inner side of one side surface of the linear motion module, a connecting block being provided on the top surface of the linear motion module, sliders being provided on both end surfaces of the connecting block, a scraper being provided on one end surface of the slider, and a heating feeding pipe being provided on one side surface of the scraper.

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

[0008] The linear motion module and the coupling are fixedly connected, and the entirety is arranged in a rectangular parallelepiped frame. The linear motion module and the linear guide rail are fixedly connected, and a corresponding groove is arranged on the inner side of the linear motion module.

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

[0010] The linear motion module is movably connected to the connecting block and the slider. The connecting block and the slider are arranged in a U-shape as a whole and move horizontally in conjunction with the linear guide rail.

[0011] As a further description of the above technical solution:

[0012] The sliding block and the scraper member are fixedly connected, the scraper member and the heating feeding pipe are fixedly connected, and the heating feeding pipes are arranged in a vertical shape in sequence.

[0013] The utility model has the following beneficial effects:

[0014] In this utility model, the feed channel and scraper are fixed to the same connecting piece, with the feed channel fixed to one side of the scraper. When the linear motion module moves, the scraper and feed channel move together, and the feed channel starts feeding at the same time, which can effectively transport high-viscosity resin, and can quickly feed and scrape it flat, ensuring printing accuracy and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] In the figure: 1. Linear motion module; 2. Coupling; 3. Linear guide; 4. Connecting block; 5. Slider; 6. Scraper; 7. Heating feed pipe. DETAILED DESCRIPTION

[0018] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention and are not used to limit the present invention.

[0019] In the drawings, the same reference numerals all refer to the same components.

[0020] Example 1

[0021] Reference Figure 1 The utility model provides an embodiment: a light-curing 3D printer scraper synchronous feeding mechanism, including a linear motion module 1, a coupling 2 is provided on one end surface of the linear motion module 1, a linear guide rail 3 is provided on the inner side of one side surface of the linear motion module 1, a connecting block 4 is provided on the top surface of the linear motion module 1, sliders 5 are provided on both end surfaces of the connecting block 4, a scraper member 6 is provided on one end surface of the slider 5, and a heating feeding pipe 7 is provided on one side surface of the scraper member 6.

[0022] The linear motion module 1 and the coupling 2 are fixedly connected, and the whole is arranged in a rectangular parallelepiped frame. The linear motion module 1 and the linear guide rail 3 are fixedly connected, and a corresponding groove is arranged on the inner side of the linear motion module 1.

[0023] The linear motion module 1 is movably connected to the connecting block 4 and the slider 5. The connecting block 4 and the slider 5 are arranged in a U-shape as a whole and move horizontally in conjunction with the linear guide rail 3.

[0024] The slider 5 and the scraper 6 are fixedly connected, and the scraper 6 and the heating and feeding pipe 7 are fixedly connected. The heating and feeding pipe 7 is arranged in a vertical manner.

[0025] Specifically, its structure consists of a linear motion module 1, a coupling 2, a linear guide 3, a connecting block 4, a slider 5, a scraper 6, and a heated feed pipe 7 to form a light-curing 3D printer scraper synchronous feeding mechanism. The linear motion module 1 is used to drive the slider 5 to perform reciprocating linear motion, thereby driving the connecting block 4, the scraper 6, and the heated feed pipe 7 to perform reciprocating linear motion. The coupling 2 connects the motor and the screw to drive the reciprocating linear motion. The linear guide 3 causes the connecting block 4 to slide inside the linear motion module 1 and perform linear motion. The connecting block 4 and the slider 5 are connected to facilitate sliding, so that the scraper 6 can be connected and fixed to the connecting block 4. The slider 5 is used to connect the linear motion module 1 and the slider 5. The scraper 6 is used to smooth the resin. In light-curing 3D printing, it is responsible for evenly smoothing the photosensitive resin and ensuring the thickness of the printed layer is consistent, which is the key to print quality. The heated feed pipe 7 is used to transport and heat the photosensitive resin. The number of heated feed pipes 7 is one or more. The scraper of the light-curing 3D printer is synchronized with the feeding mechanism. During the printing process, the scraper and the feeding system work together to achieve scraping and feeding at the same time, ensuring the continuity and stability of printing.

[0026] Working Principle: During use, feeding and leveling of the resin are performed simultaneously. The heated feed pipe 7 and the scraper 6 are fixed to the linear motion module 1, and the heated feed pipe 7 is fixed to one or both sides of the scraper 6. When the scraper 6 reciprocates, the heated feed pipe 7 moves with it. When the heated feed pipe 7 feeds the material, the scraper 6 starts to level the resin at the same time. This reciprocating motion effectively improves the overall printing efficiency.

[0027] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A synchronous feeding mechanism for a scraper of a light-curing 3D printer, comprising a linear motion module (1), characterized in that: A coupling (2) is provided on one end surface of the linear motion module (1), a linear guide rail (3) is provided on the inner side of one side surface of the linear motion module (1), a connecting block (4) is provided on the top surface of the linear motion module (1), sliders (5) are provided on both end surfaces of the connecting block (4), a scraper (6) is provided on one end surface of the slider (5), and a heating feed pipe (7) is provided on one side surface of the scraper (6).

2. A synchronous scraper feeding mechanism for a light-curing 3D printer according to claim 1, characterized in that: The linear motion module (1) and the coupling (2) are fixedly connected, and the entirety of the linear motion module (1) is arranged in a rectangular parallelepiped frame. The linear motion module (1) and the linear guide rail (3) are fixedly connected, and a corresponding groove is arranged on the inner side of the linear motion module (1).

3. The synchronous scraper feeding mechanism for a light-curing 3D printer according to claim 1, characterized in that: The linear motion module (1) is movably connected to the connecting block (4) and the slider (5); the connecting block (4) and the slider (5) are arranged in a U-shaped configuration as a whole and move horizontally in conjunction with the linear guide rail (3).

4. A synchronous scraper feeding mechanism for a light-curing 3D printer according to claim 1, characterized in that: The slider (5) and the scraper (6) are fixedly connected, and the scraper (6) and the heating and feeding pipe (7) are fixedly connected, and the heating and feeding pipe (7) are arranged in a vertical manner.

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