Rack structure of 3D printer

By introducing a moving and cleaning mechanism into the frame structure of the Prusa i3 3D printer, the stability problem of the printing platform when moving in the X-axis direction is solved, the printing efficiency and accuracy are improved, and a self-cleaning function is realized.

CN223340024UActive Publication Date: 2025-09-16HANGZHOU XIANGDUN ELECTROMECHANICAL EQUIP CO LTD
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Patent Information

Application Number
CN202422093911.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-28
Publication Date
2025-09-16
Estimated Expiration
2034-08-28

AI Technical Summary

Technical Problem

The Prusa i3 3D printer's printing platform can easily cause the model to fall off when moving in the X-axis direction, affecting printing speed and accuracy.

Method used

A frame mechanism is set on the printing platform, including a moving mechanism and a cleaning mechanism. The slider and the placement plate are driven to move by the linear servo mechanism. The pulley slides in the slide groove to ensure the stability of the platform. After printing, the scraper is used to remove the residue.

Benefits of technology

The mobile stability of the printing platform and the efficiency of 3D printing are improved, the practicality of the printer is enhanced, and a self-cleaning effect is achieved.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of 3D printing, in particular to a rack structure of a 3D printer, which comprises a device body and further comprises a side door hinged to the upper end of one side of the device body; the handle is fixedly connected with one side of the front surface of the side door; the controller is fixedly connected with the middle part of the front surface of the device body; the rack mechanism is fixedly connected with the middle part in the device body; the printing mechanism is arranged at the upper end in the device body; the wireless module is fixedly connected with one side of the lower end in the device body; according to the 3D printer, through the arranged rack mechanism and the like, an auxiliary sliding function is provided for the printing platform while the printing platform moves, so that the moving stability of the printing platform is further improved, the 3D printing efficiency and stability are improved, and the practicability of the printer is improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of 3D printing, in particular to a frame structure of a 3D printer. Background Art

[0002] A common 3D printer frame structure is the Prusa i3. The Prusa i3 is a 3D printer based on the Reprap project, designed by Adrian Bowyer and others at the University of Bath in the UK. The design drawings and program code for this printer are open source, meaning anyone can freely access and modify the design to better suit their needs. The Prusa i3's overall footprint is small, meeting the size requirements of a desktop printer. The frame consists of a rectangular gantry, which is responsible for moving the print head in the Z and Y axes, and a printing platform, which is also responsible for movement in the X axis. However, the Prusa i3 also has some limitations. Because its printing platform needs to move in the X axis, this can cause the model to fall off during printing, affecting printing speed and accuracy. Utility Model Content

[0003] The purpose of the present utility model is to provide a frame structure of a 3D printer to solve the problems raised in the above background technology.

[0004] To achieve the above objectives, the present invention provides the following technical solutions:

[0005] A frame structure of a 3D printer, comprising a device body and:

[0006] A side door, the side door being hinged to an upper end of one side of the device body;

[0007] A handle, the handle being fixedly connected to one side of the front face of the side door;

[0008] A controller, the controller being fixedly connected to the middle portion of the front of the device body;

[0009] A frame mechanism, the frame mechanism being fixedly connected to the middle portion of the device body;

[0010] A printing mechanism, the printing mechanism being arranged at the upper end of the device body;

[0011] A wireless module, the wireless module being fixedly connected to one side of the lower end of the device body;

[0012] A data analyzer, the data analyzer being fixedly connected to one side of the inner bottom of the device body;

[0013] By setting up a frame mechanism, etc., an auxiliary sliding function is provided for the printing platform while it moves, thereby further improving the stability of the printing platform movement, thereby improving the efficiency and stability of 3D printing and improving the practicality of the printer.

[0014] As the preferred solution of the present utility model,

[0015] A heat dissipation net is provided on both sides of the lower end of the device body;

[0016] The frame mechanism comprises:

[0017] A moving mechanism, the moving mechanism being fixedly connected to the middle portion of the device body;

[0018] A cleaning mechanism, the cleaning mechanism being arranged on one side of the upper end of the cleaning mechanism;

[0019] The moving mechanism comprises:

[0020] A fixed plate, wherein a linear servo mechanism is fixedly connected to the middle portion of the upper surface of the fixed plate;

[0021] There are two chutes, each of which is fixedly connected to both sides of the upper surface of the fixed plate;

[0022] A placement plate, the placement plate being slidably disposed on the upper surface of the fixed plate;

[0023] A slider, wherein the upper end of the slider is fixedly connected to the middle portion of the lower surface of the placement plate, and the lower end of the slider is fixedly connected to the output end of the linear servo mechanism;

[0024] Pulleys, two of which are fixedly connected to both sides of the lower surface of the placement plate, and the lower ends of the pulleys are slidably connected to the inner surfaces of the upper surfaces of the adjacent chutes;

[0025] The cleaning mechanism comprises:

[0026] The electric push rod, the lower end of the auxiliary frame is fixedly connected to the outer side of the upper surface of the placement plate;

[0027] An electric push rod, wherein a plurality of electric push rods are provided and one end of the electric push rods is fixedly connected to one side of the auxiliary frame;

[0028] A scraper, the scraper is slidably arranged on one side of the upper surface of the placement plate, and one side of the scraper is fixedly connected to the other end of the electric push rod;

[0029] During use, when the X-axis moves, the linear servo mechanism starts to drive the slider to move, and then drives the placement plate to move. While the placement plate moves, the pulley will also slide in the corresponding slide groove to ensure its smooth movement. If the placement print appears to be tipping or displacement, after the printing is completed, the electric push rod will push the scraper to move, sweeping and collecting the residue on the surface of the placement plate, completing the cleaning of the surface of the placement plate. The scraper and other settings effectively improve the self-cleaning effect of the frame.

[0030] Compared with the prior art, the beneficial effects of the present invention are:

[0031] 1. In the present invention, by providing a frame mechanism, etc., an auxiliary sliding function is provided for the printing platform while it moves, thereby further improving the stability of the printing platform movement, thereby improving the efficiency and stability of 3D printing and improving the practicality of the printer.

[0032] 2. In the utility model, when in use, when the X-axis moves, the linear servo mechanism starts to drive the slider to move, and then drives the placement plate to move. While the placement plate moves, the pulley will also slide in the corresponding slide groove, thereby ensuring its movement stability. If the placement printing occurs and tipping or displacement occurs, after the printing is completed, the electric push rod will push the scraper to move, sweep and collect the residue on the surface of the placement plate, and complete the cleaning of the surface of the placement plate. The scraper and the like are set, and the self-cleaning effect of the frame is effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the utility model;

[0034] Figure 2 This is a schematic diagram of the overall internal structure of the utility model;

[0035] Figure 3 This is a three-dimensional schematic diagram of the frame mechanism of the present utility model;

[0036] Figure 4 This is a schematic diagram of the frame structure of the utility model.

[0037] In the figure: 1. Device body; 2. Side door; 3. Handle; 4. Controller; 5. Heat dissipation net; 6. Frame mechanism; 7. Cleaning mechanism; 8. Moving mechanism; 9. Printing mechanism; 10. Wireless module; 11. Data analyzer; 12. Placement plate; 13. Fixing plate; 14. Linear servo mechanism; 15. Slider; 16. Pulley; 17. Slide; 18. Auxiliary frame; 19. Electric push rod; 20. Scraper. DETAILED DESCRIPTION

[0038] In order to make the technical means, objectives and effects of the present invention easier to understand, embodiments of the present invention are described in detail below with reference to specific drawings.

[0039] It should be noted that all terms used in this utility model to indicate direction and position, such as "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "inside", "outside", "top", "low", "lateral", "longitudinal", "center", etc., are only used to explain the relative positional relationship and connection status between the various components in a certain specific state (as shown in the accompanying drawings). They are only for the convenience of describing this utility model, and do not require that the utility model must be constructed and operated in a specific orientation. Therefore, they cannot be understood as limiting the utility model. In addition, the descriptions of "first", "second", etc. in this utility model are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the technical features indicated.

[0040] In the description of this utility model, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections; they can refer to direct connections, indirect connections through an intermediary, or internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0041] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the illustrative use of the above terms does not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0042] See also Figure 1-4 , the utility model provides a technical solution:

[0043] A frame structure of a 3D printer, comprising a device body 1, and further comprising:

[0044] A side door 2 is hinged to an upper end of one side of the device body 1;

[0045] Handle 3, handle 3 is fixedly connected to one side of the front of the side door 2;

[0046] Controller 4, which is fixedly connected to the middle of the front of the device body 1;

[0047] The frame mechanism 6 is fixedly connected to the middle portion of the device body 1;

[0048] The printing mechanism 9 is arranged at the upper end of the device body 1;

[0049] The wireless module 10 is fixedly connected to one side of the lower end of the device body 1;

[0050] The data analyzer 11 is fixedly connected to one side of the bottom of the device body 1;

[0051] By setting up the frame mechanism 6 and the like, an auxiliary sliding function is provided for the printing platform while it moves, thereby further improving the stability of the movement of the printing platform, thereby improving the efficiency and stability of 3D printing and improving the practicality of the printer.

[0052] As an example of the present invention,

[0053] The heat dissipation net 5 is provided on both sides of the lower end of the device body 1;

[0054] The frame mechanism 6 comprises:

[0055] The moving mechanism 8 is fixedly connected to the middle part of the device body 1;

[0056] The cleaning mechanism 7 is arranged on one side of the upper end of the cleaning mechanism 7;

[0057] The moving mechanism 8 comprises:

[0058] A fixed plate 13, wherein a linear servo mechanism 14 is fixedly connected to the middle portion of the upper surface of the fixed plate 13;

[0059] There are two chutes 17, which are fixedly connected to both sides of the upper surface of the fixed plate 13;

[0060] A placement plate 12 is slidably disposed on the upper surface of the fixed plate 13;

[0061] The slider 15 has an upper end fixedly connected to the middle portion of the lower surface of the placement plate 12, and a lower end fixedly connected to the output end of the linear servo mechanism 14;

[0062] Pulleys 16, two of which are fixedly connected to both sides of the lower surface of the placement plate 12, and the lower ends of the pulleys 16 are slidably connected to the inner surfaces of the upper surfaces of the adjacent chutes 17;

[0063] The cleaning mechanism 7 comprises:

[0064] The scraper 20 and the lower end of the auxiliary frame 18 are fixedly connected to the outer side of the upper surface of the placement plate 12;

[0065] Electric push rods 19, there are several electric push rods 19 and one end of the electric push rods 19 is fixedly connected to one side of the auxiliary frame 18;

[0066] The scraper 20 is slidably disposed on one side of the upper surface of the placement plate 12, and one side of the scraper 20 is fixedly connected to the other end of the electric push rod 19;

[0067] During use, when the X-axis moves, the linear servo mechanism 14 starts to drive the slider 15 to move, and then drives the placement plate 12 to move. While the placement plate 12 moves, the pulley 16 will also slide in the corresponding slide groove 17, thereby ensuring its movement stability. If the placement printing occurs and tipping or displacement occurs, after the printing is completed, the electric push rod 19 will push the scraper 20 to move, sweep and collect the residue on the surface of the placement plate 12, and complete the cleaning of the upper surface of the placement plate 12. The scraper 20 and the like are set, and the self-cleaning effect of the frame is effectively improved.

[0068] Working principle: When in use, when the X-axis moves, the linear servo mechanism 14 starts to drive the slider 15 to move, and then drives the placement plate 12 to move. While the placement plate 12 moves, the pulley 16 will also slide in the corresponding slide groove 17, thereby ensuring its movement stability. If the placement printing occurs and tipping or displacement occurs, after the printing is completed, the electric push rod 19 will push the scraper 20 to move, sweep and collect the residue on the surface of the placement plate 12, and complete the cleaning of the upper surface of the placement plate 12. The scraper 20 and the like are set, and the self-cleaning effect of the frame is effectively improved.

[0069] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A frame structure of a 3D printer, comprising a device body (1), characterized in that: Also includes: A side door (2), the side door (2) being hinged to an upper end of one side of the device body (1); A handle (3), the handle (3) being fixedly connected to one side of the front face of the side door (2); A controller (4), the controller (4) being fixedly connected to the middle portion of the front face of the device body (1); A frame mechanism (6), the frame mechanism (6) being fixedly connected to the middle portion of the device body (1); The frame mechanism (6) comprises: A moving mechanism (8), the moving mechanism (8) being fixedly connected to the middle portion of the device body (1); A cleaning mechanism (7), wherein the cleaning mechanism (7) is arranged on one side of an upper end of the cleaning mechanism (7); The moving mechanism (8) comprises: A fixed plate (13), wherein a linear servo mechanism (14) is fixedly connected to the middle portion of the upper surface of the fixed plate (13); A chute (17), wherein two chute (17) are provided and are respectively fixedly connected to both sides of the upper surface of the fixed plate (13); A placement plate (12), wherein the placement plate (12) is slidably disposed on the upper surface of the fixed plate (13); Also includes: A slider (15), wherein the upper end of the slider (15) is fixedly connected to the middle portion of the lower surface of the placement plate (12), and the lower end of the slider (15) is fixedly connected to the output end of the linear servo mechanism (14); Pulleys (16) are provided in total of two and are respectively fixedly connected to both sides of the lower surface of the placement plate (12); the lower ends of the pulleys (16) are respectively slidably connected to the inner sides of the upper surfaces of the adjacent chute (17).

2. The frame structure of a 3D printer according to claim 1, characterized in that: Also includes: A printing mechanism (9), the printing mechanism (9) being arranged at an upper end inside the device body (1); A wireless module (10), the wireless module (10) being fixedly connected to one side of the lower end of the device body (1); A data analyzer (11), wherein the data analyzer (11) is fixedly connected to one side of the bottom of the device body (1).

3. The frame structure of a 3D printer according to claim 1, characterized in that: Also includes: A heat dissipation net (5) is provided through both sides of the lower end of the device body (1).