3D printer with cooling mechanism

Abstract

The utility model relates to the technical field of 3D printing, in particular to a 3D printer with a cooling mechanism, which comprises a mounting rack, a printing platform is arranged at the top of the mounting rack, a 3D printing mechanism erected at the top of the printing platform is arranged at the top of the mounting rack, and a mounting portal frame is fixedly mounted behind the top of the mounting rack. A transmission arm is movably mounted on the side, close to the printing platform, of the mounting portal frame. According to the 3D printer with the cooling mechanism, the air guide pipe is arranged on the peripheral side of the printing platform, air is supplied to the air guide pipe through the air pump, and air is exhausted along the air outlet spray head on the inner side of the air guide pipe, so that a product on the printing platform can be cooled in all directions, and meanwhile, the printing height of the product is detected through the detection grating; the control system of the printer can control the servo motor to drive the adjusting lead screw to rotate according to detection data and drive the air guide pipe to move, so that the air guide pipe can be cooled along with the product printing height.

Description

Technical Field

[0001] The utility model relates to the technical field of 3D printing, in particular to a 3D printer with a cooling mechanism. 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, and is often used to make models in the fields of mold manufacturing, industrial design, etc. When 3D printing plastic products, the molten plastic is often extruded through the print head and piled up to make the finished product, and the finished product needs to be cooled after it is made to avoid deformation.

[0003] After investigation, it was found that the public announcement number: CN218701328U discloses a product molding cooling device for 3D printing, which includes a molding box, one side of the molding box is open, and two square tubes are symmetrically fixedly installed on the inner walls of the opposite sides of the molding box, and the two ends of the two square tubes are closed. The outer surfaces of the adjacent sides of the two square tubes are evenly penetrated with a plurality of air outlet holes, and the outer surfaces of the square tubes near the air outlet holes are fixedly installed with a plurality of nozzles, the bottom wall of the molding box is provided with a circular groove, and the inner wall of the circular groove is rotatably installed with a carrying plate, the top of the molding box is fixedly installed with an air pump, and the blowing end of the air pump is fixedly installed with a three-way pipe, and the two ends of the three-way pipe away from the air pump are respectively fixedly installed with the outer surfaces of the two square tubes near the bottom, and the air pump is connected to the inside of the square tube through the three-way pipe. The motor drives the carrier plate to rotate slowly, so that the 3D printed product placed on the carrier plate can also rotate accordingly. At the same time, the air pump blows air into the two square tubes through the three-way pipe, so that the blown air flow can be ejected through the nozzles arranged on the outer surface of the square tube, so that the ejected air flow can cool down the 3D printed product. By cooling down the 3D printed product during the rotation process, it is ensured that the entire 3D printed product can obtain a cooling effect, thereby improving the overall cooling speed of the 3D printed product.

[0004] However, the square tube and the nozzle are only arranged on both sides of the carrier plate. When cooling the printed product, only the left and right sides of the product can be effectively cooled, while the cooling effect on the front and back sides of the product is not good, resulting in the product still having a high temperature after printing. Therefore, we propose a 3D printer with a cooling mechanism to solve the above problem. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a 3D printer with a cooling mechanism.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a 3D printer with a cooling mechanism, comprising a mounting frame, a printing platform is arranged on the top of the mounting frame, a 3D printing mechanism mounted on the top of the printing platform is arranged on the top of the mounting frame, a mounting gantry is fixedly installed at the rear of the top of the mounting frame, and a transmission arm is movably installed on the side of the mounting gantry close to the printing platform, an air guide tube is fixedly installed on the transmission arm, and the air guide tube is located on the peripheral side of the printing platform, a plurality of air outlet nozzles are fixedly installed on the inner circle of the air guide tube, a servo motor is fixedly installed on the top of the mounting gantry, and an adjusting screw is movably installed inside, detection gratings located on both sides of the printing platform are fixedly installed on the top of the mounting frame, and an air pump is fixedly installed on one side of the mounting frame.

[0007] As a further description of the above technical solution: the output shaft of the servo motor is fixedly connected to the adjusting screw, and the adjusting screw is threadedly connected to the transmission arm. The transmission arm is connected to the servo motor through the adjusting screw. The servo motor drives the adjusting screw to rotate, which can drive the transmission arm and the air guide tube to move, so that the air guide tube can move with the printing height of the product.

[0008] As a further description of the above technical solution: the air outlet of the air pump is fixedly connected to the air duct through a hose, and the air pump can supply air to the air duct through the hose. The air pump can supply air to the air duct along the hose, and the air flow is ejected along the air outlet nozzle on the inside of the air duct, thereby achieving effective cooling of the printed product.

[0009] As a further description of the above technical solution: guide rails are fixedly installed on the left and right sides of the front face of the mounting gantry, and the transmission arm is movably installed on the mounting gantry through the guide rails. The transmission arm is restricted by the guide rails to ensure that the transmission arm can drive the air guide tube to move stably, thereby achieving effective cooling of the printed products.

[0010] As a further description of the above technical solution: an anti-rotation plate is fixedly installed on the side of the air duct close to the transmission arm, and the anti-rotation plate is against the transmission arm. The anti-rotation plate is used to restrict the air duct to prevent the air duct from deflecting during operation, thereby ensuring the stability of the air duct when cooling the product.

[0011] As a further description of the above technical solution: a plurality of mounting sleeves are clamped on one side of the air guide tube close to the transmission arm, and the mounting sleeves are fixedly connected to the transmission arm by screws. The air guide tube is installed on the transmission arm through multiple mounting sleeves, and is easy to disassemble and assemble.

[0012] As a further description of the above technical solution: the detection grating consists of two parts: an emitter and a light receiver, and the emitter and the light receiver are respectively located on the left and right sides of the printing platform. The printing height of the product is detected by the detection grating, and the control system of the printer can adjust the height of the air duct according to the detection data.

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

[0014] The 3D printer with a cooling mechanism designed by the utility model can cool the product on the printing platform in all directions by arranging an air duct around the printing platform, supplying air to the air duct through an air pump, and discharging air along an air outlet nozzle inside the air duct. At the same time, the printing height of the product is detected by a detection grating. The control system of the printer can control the servo motor to drive the adjustment screw to rotate according to the detection data, and drive the air duct to move, so that the air duct can be cooled according to the printing height of the product, thereby improving the cooling effect on the product.

[0015] The utility model designs a 3D printer with a cooling mechanism, in which an air duct is installed on a transmission arm through a mounting sleeve, and is easy to assemble and disassemble; an anti-rotation plate is provided on the air duct, and the anti-rotation plate abuts against the transmission arm to limit the rotation of the air duct, thereby ensuring the stability of the air duct during operation, thereby achieving effective cooling of printed products. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0017] Figure 2 This is a structural schematic diagram of the installation position of the air pump of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure inside the gantry frame of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the gantry installation of the utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the air guide tube of the utility model;

[0021] Figure 6 It is a structural schematic diagram of the anti-rotation plate of the utility model.

[0022] Legend:

[0023] 1. Install the frame; 2. Printing platform; 3. 3D printing mechanism; 4. Install the gantry; 5. Servo motor; 6. Adjust the screw; 7. Transmission arm; 8. Guide rail; 9. Air guide tube; 10. Air outlet nozzle; 11. Install the jacket; 12. Anti-rotation plate; 13. Detection grating; 14. Air pump. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] Please refer to Figure 1-6 The utility model provides a technical solution: a 3D printer with a cooling mechanism, comprising a mounting frame 1, a printing platform 2 is arranged on the top of the mounting frame 1, a 3D printing mechanism 3 is arranged on the top of the printing platform 2, a mounting gantry 4 is fixedly installed at the rear of the top of the mounting frame 1, and a transmission arm 7 is movably installed on the side of the mounting gantry 4 close to the printing platform 2, an air guide tube 9 is fixedly installed on the transmission arm 7, and the air guide tube 9 is located on the peripheral side of the printing platform 2, a plurality of air outlet nozzles 10 are fixedly installed on the inner circle of the air guide tube 9, the air guide tube 9 is arranged on the peripheral side of the printing platform 2, the air guide tube 9 is supplied with air by an air pump 14, and the air outlet nozzles 10 on the inner side of the air guide tube 9 are arranged The product on the printing platform 2 can be cooled in all directions. A servo motor 5 is fixedly installed on the top of the gantry 4, and an adjusting screw 6 is movably installed inside. A detection grating 13 located on both sides of the printing platform 2 is fixedly installed on the top of the mounting frame 1. The printing height of the product is detected by the detection grating 13. The control system of the printer can control the servo motor 5 to drive the adjusting screw 6 to rotate according to the detection data, and drive the air guide tube 9 to move, so that the air guide tube 9 can be cooled according to the printing height of the product. An air pump 14 is fixedly installed on one side of the mounting frame 1. The air pump 14 can supply air to the air guide tube 9 along the hose, and make the air flow ejected along the air outlet nozzle 10 on the inner side of the air guide tube 9, so as to achieve effective cooling of the printed product.

[0026] As a further implementation scheme of the above technical scheme: the output shaft of the servo motor 5 is fixedly connected to the adjusting screw 6, and the adjusting screw 6 is threadedly connected to the transmission arm 7, and the transmission arm 7 is transmission-connected to the servo motor 5 through the adjusting screw 6. The adjusting screw 6 is driven to rotate by the servo motor 5, thereby driving the transmission arm 7 and the air guide tube 9 to move, so that the air guide tube 9 can move with the printing height of the product, thereby realizing efficient cooling of the printed product.

[0027] As a further implementation scheme of the above technical scheme: the air outlet of the air pump 14 is fixedly connected to the air guide tube 9 through a hose, and the air pump 14 can supply air to the air guide tube 9 through the hose. The air pump 14 is a common existing technology, and its principle and working process are not repeated here. The air pump 14 can supply air to the air guide tube 9 along the hose, and make the air flow ejected along the air outlet nozzle 10 on the inner side of the air guide tube 9, thereby achieving effective cooling of the printed product.

[0028] As a further implementation scheme of the above technical scheme: guide rails 8 are fixedly installed on the left and right sides of the front of the mounting gantry 4, and the transmission arm 7 is movably installed on the mounting gantry 4 through the guide rails 8. The transmission arm 7 is restricted by the guide rails 8 to ensure that the transmission arm 7 is firmly connected to the mounting gantry 4, and the transmission arm 7 can drive the air guide tube 9 to move stably.

[0029] As a further implementation scheme of the above technical scheme: an anti-rotation plate 12 is fixedly installed on one side of the air guide tube 9 close to the transmission arm 7, and the anti-rotation plate 12 is against the transmission arm 7. Since the air guide tube 9 is a tubular structure, the anti-rotation plate 12 is used to restrict the air guide tube 9 to prevent the air guide tube 9 from deflecting during operation, thereby ensuring the stability of the air guide tube 9 when cooling the product.

[0030] As a further implementation scheme of the above technical scheme: a plurality of mounting sleeves 11 are clamped on one side of the air duct 9 close to the transmission arm 7, and the mounting sleeves 11 are fixedly connected to the transmission arm 7 by screws. The air duct 9 is installed on the transmission arm 7 by means of a plurality of mounting sleeves 11, which is easy to assemble and disassemble, and at the same time ensures the firmness of the air duct 9 after installation.

[0031] As a further implementation scheme of the above technical scheme: the detection grating 13 consists of two parts: an emitter and a light receiver. The detection grating 13 is a common existing technology, and the model MYD128A2 can be selected. In order to avoid the moving parts on the 3D printing mechanism 3 affecting the detection of the detection grating 13, the detection grating 13 should be installed on the top of the mounting frame 1 on the side deviating from the moving parts of the 3D printing mechanism 3, and the emitter and the light receiver are respectively located on the left and right sides of the printing platform 2. The printing height of the product is detected by the detection grating 13, and the detection data is transmitted to the control system of the printer. The control system can control the height of the air duct 9 according to the detection data to achieve effective cooling of the printed product.

[0032] Working principle:

[0033] When the utility model is used, the servo motor 5, the detection grating 13 and the air pump 14 are all electrically connected to the control system of the 3D printer. The control system can control the start and stop of the servo motor 5 and the air pump 14, and can receive the detection data of the air pump 14. When performing a printing operation, the control system starts the air pump 14, and the air pump 14 guides the airflow into the air duct 9 along the hose, and sprays it along a plurality of air outlet nozzles 10 on the inner side of the air duct 9, so as to comprehensively cool down the printed product on the printing platform 2. At the same time, the height of the printed product is detected by the detection grating 13, and the detection signal is transmitted to the control system. The control system controls the servo motor 5 to drive the adjusting screw 6 to rotate according to the height of the product printing, and drives the transmission arm 7 and the air duct 9 to move, so that the air duct 9 moves with the product printing height, thereby realizing efficient cooling of the product.

[0034] In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not expressly listed, or also includes elements inherent to such process, method, article, or apparatus.

[0035] 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.

Claims

1. A 3D printer with a cooling mechanism, comprising a mounting frame (1), a printing platform (2) being arranged on the top of the mounting frame (1), and a 3D printing mechanism (3) being arranged on the top of the printing platform (2), characterized in that: A mounting gantry (4) is fixedly mounted at the rear of the top of the mounting frame (1), and a transmission arm (7) is movably mounted on a side of the mounting gantry (4) close to the printing platform (2), an air guide tube (9) is fixedly mounted on the transmission arm (7), and the air guide tube (9) is located on the peripheral side of the printing platform (2), a plurality of air outlet nozzles (10) are fixedly mounted on the inner ring of the air guide tube (9), a servo motor (5) is fixedly mounted on the top of the mounting gantry (4), and an adjusting screw rod (6) is movably mounted inside, a detection grating (13) located on both sides of the printing platform (2) is fixedly mounted on the top of the mounting frame (1), and an air pump (14) is fixedly mounted on one side of the mounting frame (1).

2. A 3D printer with a cooling mechanism according to claim 1, characterized in that: The output shaft of the servo motor (5) is fixedly connected to the adjusting screw rod (6), and the adjusting screw rod (6) is threadedly connected to the transmission arm (7), and the transmission arm (7) is transmission-connected to the servo motor (5) via the adjusting screw rod (6).

3. A 3D printer with a cooling mechanism according to claim 1, characterized in that: The air outlet of the air pump (14) is fixedly connected to the air guide tube (9) via a hose, and the air pump (14) can supply air to the air guide tube (9) via the hose.

4. A 3D printer with a cooling mechanism according to claim 1, characterized in that: Guide rails (8) are fixedly installed on both left and right sides of the front of the installation gantry (4), and the transmission arm (7) is movably installed on the installation gantry (4) through the guide rails (8).

5. The 3D printer with a cooling mechanism according to claim 1, characterized in that: An anti-rotation plate (12) is fixedly mounted on one side of the air guide tube (9) close to the transmission arm (7), and the anti-rotation plate (12) abuts against the transmission arm (7).

6. A 3D printer with a cooling mechanism according to claim 1, characterized in that: A plurality of mounting sleeves (11) are clamped on one side of the air guide tube (9) close to the transmission arm (7), and the mounting sleeves (11) are fixedly connected to the transmission arm (7) via screws.

7. A 3D printer with a cooling mechanism according to claim 1, characterized in that: The detection grating (13) consists of two parts: an emitter and a light receiver, and the emitter and the light receiver are respectively located on the left and right sides of the printing platform (2).

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