Workpiece cooling mechanism for 3D printer

Abstract

The workpiece cooling mechanism comprises the 3D printer, a supporting plate is movably installed on a base of the 3D printer, a fixing base is fixedly connected to the top of the supporting plate, a bearing plate is rotatably installed on the top of the fixing base, a plurality of lug plates are fixedly connected to the edge of the supporting plate, and electric push rods are installed on the tops of the lug plates. A first air pipe is installed at the output end of the electric push rod and provided with a plurality of first air nozzles, a first draught fan used for ventilating the first air pipe is installed at the position, on one side of the fixing base, of the top of the supporting plate, a mounting frame is installed at the top of the rear end of the 3D printer base, a second draught fan is installed at the top of the mounting frame, and the output end of the second draught fan is connected with a second air pipe penetrating through the mounting frame. And a plurality of tuyeres II are arranged on the air pipe II. According to the utility model, the curing speed of molten plastic can be accelerated by accelerating the circulation of air around a printed workpiece, so that the printing speed can be improved, and the cooling of the workpiece can be accelerated by rotating the workpiece and blowing air to the workpiece.

Description

Technical Field

[0001] The utility model relates to the field of 3D printers, in particular to a workpiece cooling mechanism for a 3D printer. Background Art

[0002] 3D printing is a type of rapid prototyping technology, also known as additive manufacturing. It is a technology that uses digital model files as the basis, uses powdered metal or plastic and other bondable materials to construct objects by printing layer by layer. 3D printing is usually achieved using digital technology material printers. It is often used to make models in the fields of mold manufacturing, industrial design, etc., and then gradually used for the direct manufacturing of some products. There are already parts printed using this technology. This technology has applications in jewelry, footwear, industrial design, architecture, engineering and construction AEC, automobiles, aerospace, dental and medical industries, education, geographic information systems, civil engineering, firearms and other fields.

[0003] Many plastic workpieces are produced by 3D printers. After the printer is connected to a computer, the melted plastic "printing material" is stacked layer by layer through computer control, and finally the blueprint on the computer is turned into a physical object. However, the plastic workpieces printed by existing 3D printers rely on natural cooling to cool and solidify. During the production process, the stacking speed needs to be controlled to avoid the plastic material stacked on the bottom of the workpiece not solidifying, causing the bottom of the workpiece to collapse and be damaged due to insufficient bearing capacity, thus affecting the production efficiency of the 3D printer. In addition, the temperature of the workpiece is relatively high after printing, and the workpiece needs to be cooled before the next step of processing can be carried out. Natural cooling alone is inefficient. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the above technical defects and provide a workpiece cooling mechanism for a 3D printer.

[0005] In order to solve the above problems, the technical solution of the utility model is: a workpiece cooling mechanism for a 3D printer, comprising a 3D printer, a support plate movably installed on the base of the 3D printer, a fixed seat fixedly connected to the top of the support plate, a supporting plate rotatably installed on the top of the fixed seat, a plurality of ear plates fixedly connected to the edge of the support plate, an electric push rod installed on the top of the ear plate, an air duct 1 is installed at the output end of the electric push rod, a plurality of air nozzles 1 are provided on the air duct 1, a fan 1 for ventilating the air duct 1 is installed on one side of the fixed seat on the top of the support plate, a mounting frame is installed on the top of the rear end of the 3D printer base, a fan 2 is installed on the top of the mounting frame, the output end of the fan 2 is connected to an air duct 2 running through the mounting frame, and a plurality of air nozzles 2 are provided on the air duct 2.

[0006] Furthermore, a Y-axis moving component for driving the support plate to move is installed on the base of the 3D printer.

[0007] Furthermore, a mounting groove is provided at the center of the top surface of the fixing seat, a vertical rod is rotatably installed inside the mounting groove, the top of the vertical rod is fixedly connected to the supporting plate, a motor is installed inside the mounting groove on one side of the vertical rod, a driving gear is installed on the output shaft of the motor, and a driven gear meshing with the driving gear is installed on the vertical rod.

[0008] Furthermore, a plurality of rollers are installed at the bottom of the support plate, and the plurality of rollers are distributed in a circular array, and a circular groove matching the rollers is formed on the top surface of the fixing seat.

[0009] Furthermore, the air duct 1 is an arc-shaped tube, and a connecting tube is fixedly connected to the middle of its bottom, and the connecting tube is fixedly installed on the top of the electric push rod through a positioning block.

[0010] Furthermore, an arc-shaped through groove matching the air duct is provided at the edge of the supporting plate.

[0011] Compared with the prior art, the utility model has the following advantages: the utility model can accelerate the circulation of air around the printed workpiece by spraying upward airflow through multiple air nozzles, accelerate the solidification speed of molten plastic, and thus accelerate the printing rate; the motor drives the vertical rod, the supporting plate and the workpiece to rotate through gear transmission, and the fan works so that the air nozzles blow air toward the rotating workpiece, which can accelerate the cooling of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a stereogram of the utility model.

[0013] Figure 2 It is a connection structure diagram of the supporting plate of the utility model.

[0014] Figure 3 This utility model Figure 2 sectional view of .

[0015] Figure 4 It is a connection structure diagram of the air duct 1 of the utility model.

[0016] As shown in the figure: 1. 3D printer; 2. support plate; 3. fixed seat; 4. supporting plate; 5. ear plate; 6. electric push rod; 7. air duct 1; 8. air nozzle 1; 9. fan 1; 10. mounting frame; 11. fan 2; 12. air duct 2; 13. air nozzle 2; 14. vertical rod; 15. motor; 16. driving gear; 17. driven gear; 18. roller; 19. connecting pipe; 20. positioning block. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0018] like Figures 1 to 4 As shown, a workpiece cooling mechanism for a 3D printer comprises a 3D printer 1, a support plate 2 is movably mounted on the base of the 3D printer 1, a Y-axis moving assembly for driving the support plate 2 to move is mounted on the base of the 3D printer 1, a fixing seat 3 is fixedly connected to the top of the support plate 2, a supporting plate 4 is rotatably mounted on the top of the fixing seat 3, a plurality of ear plates 5 are fixedly connected to the edge of the support plate 2, an electric push rod 6 is mounted on the top of the ear plate 5, an air duct 7 is mounted on the output end of the electric push rod 6, a plurality of air nozzles 8 are arranged on the air duct 7, a fan 9 for ventilating the air duct 7 is mounted on one side of the fixing seat 3 on the top of the support plate 2, the air duct 7 is an arc-shaped tube, and a connecting pipe 19 is fixedly connected to the middle of the bottom thereof, the connecting pipe 19 is fixedly mounted on the top of the electric push rod 6 through a positioning block 20, and an arc-shaped through groove matching the air duct 7 is opened at the edge of the supporting plate 4.

[0019] A mounting frame 10 is installed at the top of the rear end of the base of the 3D printer 1, and a second fan 11 is installed on the top of the mounting frame 10. The output end of the second fan 11 is connected to a second air duct 12 that runs through the mounting frame 10, and a plurality of second air nozzles 13 are provided on the second air duct 12. A mounting groove is provided at the center of the top surface of the fixing seat 3, and a vertical rod 14 is rotatably installed inside the mounting groove. The top of the vertical rod 14 is fixed to the supporting plate 4, and a motor 15 is installed on one side of the vertical rod 14 inside the mounting groove. A driving gear 16 is installed on the output shaft of the motor 15, and a driven gear 17 meshing with the driving gear 16 is installed on the vertical rod 14. A plurality of rollers 18 are installed at the bottom of the supporting plate 4, and the plurality of rollers 18 are distributed in an annular array, and an annular groove matching the rollers 18 is provided on the top surface of the fixing seat 3.

[0020] In specific use, the output end of the fan 9 is connected to a plurality of connecting pipes 19 through a hose. When printing, the fan 9 works, so that the nozzle 8 sprays upward airflow, which can accelerate the circulation of air around the printed workpiece, thereby accelerating the solidification speed of the molten plastic, thereby accelerating the printing rate. After printing is completed, the Y-axis moving assembly moves the support plate 2 close to the mounting frame 10, and the electric push rod 6 contracts to move the nozzle 8 to the bottom of the support plate 4, and the motor 15 and the fan 2 11 are turned on. The motor 15 drives the vertical rod 14 and the support plate 4 to rotate through the gear transmission. The fan 2 11 works so that the nozzle 2 13 blows air to the rotating workpiece, which can accelerate the cooling of the workpiece.

[0021] The undisclosed parts in the present invention are all prior art, and their specific structures and working principles are not described in detail.

[0022] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0023] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

[0024] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A workpiece cooling mechanism for a 3D printer, comprising a 3D printer (1), characterized in that: A support plate (2) is movably mounted on the base of the 3D printer (1), a fixed seat (3) is fixedly connected to the top of the support plate (2), a supporting plate (4) is rotatably mounted on the top of the fixed seat (3), a plurality of ear plates (5) are fixedly connected to the edge of the support plate (2), an electric push rod (6) is mounted on the top of the ear plate (5), an air duct (7) is mounted on the output end of the electric push rod (6), and a plurality of air nozzles (8) are arranged on the air duct (7), a fan (9) for ventilating the air duct (7) is mounted on the top of the support plate (2) on one side of the fixed seat (3), a mounting frame (10) is mounted on the top of the rear end of the base of the 3D printer (1), a second fan (11) is mounted on the top of the mounting frame (10), the output end of the second fan (11) is connected to a second air duct (12) penetrating the mounting frame (10), and a plurality of air nozzles (13) are arranged on the second air duct (12).

2. A workpiece cooling mechanism for a 3D printer according to claim 1, characterized in that: A Y-axis moving component for driving the support plate (2) to move is installed on the base of the 3D printer (1).

3. The workpiece cooling mechanism for a 3D printer according to claim 1, characterized in that: A mounting groove is provided at the center of the top surface of the fixing seat (3), a vertical rod (14) is rotatably mounted inside the mounting groove, the top of the vertical rod (14) is fixedly connected to the supporting plate (4), a motor (15) is mounted inside the mounting groove on one side of the vertical rod (14), a driving gear (16) is mounted on the output shaft of the motor (15), and a driven gear (17) meshing with the driving gear (16) is mounted on the vertical rod (14).

4. The workpiece cooling mechanism for a 3D printer according to claim 1, characterized in that: A plurality of rollers (18) are installed at the bottom of the support plate (4), and the plurality of rollers (18) are distributed in a circular array, and an annular groove matching the rollers (18) is provided on the top surface of the fixing seat (3).

5. The workpiece cooling mechanism for a 3D printer according to claim 1, characterized in that: The air duct 1 (7) is an arc-shaped tube, and a connecting tube (19) is fixedly connected to the middle of its bottom, and the connecting tube (19) is fixedly installed on the top of the electric push rod (6) through a positioning block (20).

6. A workpiece cooling mechanism for a 3D printer according to claim 5, characterized in that: An arc-shaped through groove matching the air duct 1 (7) is provided at the edge of the supporting plate (4).

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