Cooling base of 3D printer

Abstract

Arc rack guide rails are symmetrically arranged on the top face of the base, supporting columns are fixedly connected to sliding blocks of the arc rack guide rails, through windows are formed in the middles of the supporting columns, vertical rails are fixedly connected to the portions, on the two sides of the windows, of the supporting columns, and movable bases are arranged on the two vertical rails in a sliding fit mode. A threaded hole is formed in the middle of the moving seat, the moving seat is in meshed connection with a threaded rod in the middle of the supporting column through the threaded hole, the end of the threaded rod is rotationally connected to the supporting column, a lifting motor is installed at the top of the supporting column, and the output end of the lifting motor is in transmission connection with the threaded rod; and a chuck for clamping the gas ejector pipe is mounted on the surface of the moving seat. The air ejector pipe can be clamped through the supporting column, the height of the air ejector pipe can be adjusted through the lifting motor so as to adapt to the change of the height of a printed piece in the printing process, the plane position of the air ejector pipe can be adjusted through the arc rack guide rail, and the whole process can be achieved through program setting or remote control.

Description

Technical Field

[0001] This utility model relates to the field of 3D printers, and in particular to a cooling base for a 3D printer. Background Technology

[0002] Patent CN212124201U discloses a 3D printer base with a cooling function. This base incorporates a Peltier element and a connecting pipe for cold air delivery. When 3D printing special materials such as chocolate, the base cooling and the connecting pipe spray cold air onto the printed parts, facilitating easy separation of the printed parts. However, the connecting pipe in this patent is a flexible hose, requiring manual operation during the process, which is inconvenient. Utility Model Content

[0003] The purpose of this application is to provide a cooling base for a 3D printer, which aims to solve the problems existing in the prior art.

[0004] This application provides a cooling base for a 3D printer. A Peltier element is installed inside the base, and an air jet pipe is mounted on the base. A circular arc rack guide rail is symmetrically arranged on the top surface of the base. A support column is fixedly connected to the slider of the circular arc rack guide rail. The support column has a height and a through window in its middle. Vertical rails are fixedly connected to the support columns on both sides of the window. A movable seat is slidably fitted on the two vertical rails. A threaded hole is opened in the middle of the movable seat, and the movable seat is engaged with a threaded rod in the middle of the support column through the threaded hole. The end of the threaded rod is rotatably connected to the support column. A lifting motor is installed at the top of the support column, and the output end of the lifting motor is connected to the threaded rod for transmission. A chuck for clamping the air jet pipe is installed on the surface of the movable seat.

[0005] Furthermore, the movable seat is installed on the side of the support column facing the center of the base, with the two support columns standing opposite each other.

[0006] Furthermore, one movable leg of the chuck is fixed to the movable seat, while the other movable leg remains suspended in the air.

[0007] Furthermore, the clamping part of the chuck is suspended below the movable base.

[0008] Furthermore, there are two jet pipes, the body of which is a flexible hose, and the two jet pipes correspond one-to-one with the two support columns.

[0009] Furthermore, the arc rack guide rail includes an arc-shaped guide rail that is curved in an arc shape and an arc rack. A slider is connected to the arc-shaped guide rail by rollers. A motion motor is mounted on the slider. A rotating shaft is mounted on the output shaft of the motion motor, and a drive gear is mounted on the end of the rotating shaft. The drive gear is connected to the arc rack through tooth meshing.

[0010] The beneficial effects of this utility model are as follows: This utility model provides a cooling base that does not require manual operation of the air jet pipe. The air jet pipe can be clamped by a support column, and the height of the air jet pipe can be adjusted by a lifting motor to adapt to changes in the height of the printed parts during the printing process. The planar position of the air jet pipe can be adjusted by an arc-shaped rack and pinion guide rail, allowing for air jet cooling of the printed parts from any side. The entire process is completed by a lifting motor and a motion motor, and can be achieved through program settings or remote control, without requiring manual operation. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0012] Figure 2 This is a schematic diagram of the internal structure of the base.

[0013] Figure 3 This is a schematic diagram of the front structure of the support column.

[0014] Figure 4 This is a cross-sectional view of the circular arc rack guide.

[0015] In the picture:

[0016] 1. Base; 2. Peltier element; 3. Jet pipe; 4. Arc rack and pinion guide rail; 5. Slider; 6. Support column; 7. Window; 8. Vertical rail; 9. Moving seat; 10. Threaded rod; 11. Lifting motor; 12. Chuck; 13. Arc guide rail; 14. Arc rack and pinion; 15. Roller; 16. Motion motor; 17. Drive gear. Detailed Implementation

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

[0018] like Figures 1-2 The diagram shows a cooling base for a 3D printer. A Peltier element 2 is installed within the base 1 using conventional methods, allowing for heating or cooling functions as needed. An air jet pipe 3 is mounted on the base 1, and, as in existing technology, an exhaust fan, valves, and air nozzles are installed on the air jet pipe 3. An air inlet can be provided on the base 1 to connect with the outside environment, ensuring pressure balance within the base 1 when cold air is output through the air jet pipe 3.

[0019] like Figure 1 and Figure 3As shown, the top surface of the base 1 is symmetrically equipped with arc-shaped rack and pinion guide rails 4. Support columns 6 are fixedly connected to the sliders 5 of the arc-shaped rack and pinion guide rails 4. The support columns 6 have a height and a through window 7 in their middle. Vertical rails 8 are fixedly connected to the support columns 6 on both sides of the window 7. Moving seats 9 are slidably fitted onto the two vertical rails 8. A threaded hole is formed in the middle of the moving seat 9, and the moving seat 9 is engaged with a threaded rod 10 in the middle of the support column 6 through the threaded hole. The end of the threaded rod 10 is rotatably connected to the support column 6. A lifting motor 11 is installed at the top of the support column 6, and the output end of the lifting motor 11 is connected to the threaded rod 10 for transmission. The threaded rod 10 and the moving seat 9 form a screw-nut structure. When the lifting motor 11 drives the threaded rod 10 to rotate, it can drive the moving seat 9 to move linearly. During the movement, the vertical rails 8 provide a sliding track for the moving seat 9.

[0020] The surface of the movable base 9 is equipped with a clamp 12 for holding the jet pipe 3. One movable leg of the clamp 12 is fixed to the movable base 9, while the other movable leg is suspended in the air. By squeezing the two movable legs, the clamping part of the clamp 12 can be opened, thereby facilitating the insertion or removal of the jet pipe 3. The clamping part of the clamp 12 is suspended below the movable base 9, and the jet pipe 3 passes through the window 7 from the rear side of the support column 6 to the front side and is clamped by the clamp 12, thus fixing the jet pipe 3.

[0021] In this application, there are two jet pipes 3, each with a flexible tube body. Each jet pipe 3 corresponds one-to-one with one of the two support columns 6. The two jet pipes 3 can completely surround the printed part. The length of the jet pipe 3 must be sufficient to allow the support column 6 to move from one end of the circular arc rack guide 4 to the other, and for the moving seat 9 to move to the highest point of the support column 6.

[0022] The circular arc rack and pinion guide 4 is an existing mature product. This application still provides a common structural description, such as... Figure 4 As shown, the arc-shaped rack and pinion guide rail 4 includes an arc-shaped guide rail 13 and an arc-shaped rack 14. A slider 5 is connected to the arc-shaped guide rail 13 via rollers 15. A motion motor 16 is mounted on the slider 5. A rotating shaft is mounted on the output shaft of the motion motor 16, and a drive gear 17 is mounted at the end of the rotating shaft. The drive gear 17 is connected to the arc-shaped rack 14 through gear meshing. When the motion motor 16 is started, it causes the drive gear 17 to rotate, which, through meshing with the arc-shaped rack 14, drives the slider 5 to move along the arc-shaped guide rail 13.

[0023] The arc rack and pinion guide rail 4 can drive the support column 6 to move along an arc-shaped trajectory on the base 1, thereby moving to multiple sides of the printed part. The two symmetrical arc rack and pinion guide rails 4 can achieve full surround of the printed part.

[0024] The movable seat 9 is installed on the side of the support column 6 facing the center of the base 1. The two support columns 6 stand opposite each other, so that the nozzle of the jet pipe 3 always faces the center of the base 1.

[0025] When 3D printing conventional materials, the heating function of the Peltier element 2 can be used to preheat the base 1, thus preventing warping of materials such as ABS and nylon after printing. When printing flexible TPU or chocolate, the cooling function of the Peltier element 2 can be used to open the valve of the air jet pipe 3, working with the base 1 and the air jet pipe 3 to cool the printed part. The arc-shaped rack and pinion guide rail 4 can move the air jet pipe 3 around the printed part to different sides, thus blowing air to cool the entire perimeter of the printed part; the height-adjustable movable seat 9, carrying the air jet pipe 3, blows air to cool the printed part at different heights as the printing process progresses.

[0026] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects.

Claims

1. A cooling base for a 3D printer, wherein a Peltier element is installed inside the base, and an air jet pipe is installed on the base; characterized in that, The top surface of the base is symmetrically equipped with an arc-shaped rack and pinion guide rail. A support column is fixedly connected to the slider of the arc-shaped rack and pinion guide rail. The support column has a height and a through window in the middle. Vertical rails are fixedly connected to the support columns on both sides of the window. A movable seat is slidably fitted on the two vertical rails. A threaded hole is opened in the middle of the movable seat and is engaged with the threaded rod in the middle of the support column through the threaded hole. The end of the threaded rod is rotatably connected to the support column. A lifting motor is installed at the top of the support column. The output end of the lifting motor is connected to the threaded rod for transmission. A clamp for holding the jet pipe is installed on the surface of the movable seat.

2. The cooling base for a 3D printer according to claim 1, characterized in that, The movable seat is mounted on the side of the support column facing the center of the base, with the two support columns standing opposite each other.

3. The cooling base for a 3D printer according to claim 1, characterized in that, One movable leg of the clamp is fixed on the movable seat, while the other movable leg remains suspended in the air.

4. The cooling base for a 3D printer according to claim 3, characterized in that, The clamping part of the chuck is suspended below the movable base.

5. The cooling base for a 3D printer according to claim 1, characterized in that, There are two jet pipes, each with a flexible tube body, and each jet pipe corresponds to one of the two support columns.

6. The cooling base for a 3D printer according to claim 1, characterized in that, The arc rack guide rail includes an arc-shaped guide rail and an arc rack. A slider is connected to the arc-shaped guide rail by rollers. A motion motor is mounted on the slider. A rotating shaft is mounted on the output shaft of the motion motor, and a drive gear is mounted on the end of the rotating shaft. The drive gear is connected to the arc rack through tooth meshing.

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