Heat dissipation device for 3D printer

Abstract

The utility model belongs to the technical field of heat dissipation devices, and particularly relates to a heat dissipation device for a 3D printer, which comprises a main body frame, a moving block is movably mounted in the middle of the top of the main body frame, a printing head is fixedly mounted at the bottom of the moving block, and ventilation slots are formed in two sides of the printing head. Supporting frames are connected to the two sides of the printing head in a threaded mode, a cooling fan is connected to one side of each supporting frame in a threaded mode, a connecting plate is connected to the bottom of the printing head in a threaded mode, a cooling cylinder is fixedly installed at the bottom of the connecting plate, and a water storage cavity is formed in the cooling cylinder. Through the structural design of the printing head, the ventilation groove, the cooling fan, the cooling cylinder and the water storage cavity, the precise heat dissipation function is achieved, energy distribution can be more precisely controlled, partition temperature control can be conducted on different assemblies of the 3D printer, the service life of the assemblies is prolonged, and then the operation stability and reliability of the whole system are improved. The problem of low heat dissipation efficiency is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat dissipation devices, in particular to a heat dissipation device for a 3D printer. Background Art

[0002] 3D printing technology is based on computer three-dimensional design models. Through software layered discreteness and CNC molding systems, laser beams, hot-melt nozzles and other methods are used to stack and bond special materials such as metal powder, ceramic powder, plastic, and cell tissue layer by layer, and finally superimpose and mold to produce physical products. 3D printing transforms three-dimensional entities into several two-dimensional planes. By processing materials and stacking them layer by layer for production, the complexity of manufacturing is greatly reduced. During the molding process of molten materials, deformation and warping will occur due to the cooling temperature difference, which greatly reduces the molding accuracy. In addition, the stepper motor used to extrude materials will generate a lot of heat during operation. If the heat is not dissipated in time, the working performance of the stepper motor will decrease, affecting the extrusion amount of molten material, and thus affecting the molding accuracy.

[0003] For example, a heat dissipation device for continuous printing of a 3D printer with publication number CN210553052U includes a box body, a frame and a heat conducting plate. A heat conducting pad is glued to one side of the box body and a heat conducting plate is glued to one side of the heat conducting pad. A powerful exhaust fan is installed on one side of the heat conducting plate through a mounting frame. Reserved grooves are provided at both ends of the box body and a main rod is connected to the reserved groove through a rotating shaft. A secondary rod is sleeved at one end of the main rod and a frame is connected to one end of the secondary rod through a rotating shaft. A heat dissipation fan is installed inside the frame through a mounting frame. Fixed blocks are welded at both ends of one side of the reserved groove and a transmission rod is connected to one side of the fixed block through a threaded groove. The utility model can conduct heat from objects inside the 3D printer by setting a heat conducting pad and a heat conducting plate. By setting a powerful exhaust fan, the hot air inside the 3D printer and the heat on the heat conducting plate can be extracted through the ventilation holes. The structure is simple and the maintenance cost is low, which is suitable for being widely promoted and used.

[0004] However, according to the working principle proposed in the above patent, the applicant believes that the above device mainly relies on air cooling to cool the 3D printer. Since the print head generates a lot of heat during long-term operation, it may not be able to effectively remove the heat in this case, resulting in low heat dissipation efficiency, affecting the printing quality and stability, and failing to fully cool the 3D printer.

[0005] Therefore, in order to solve the above problems, a heat dissipation device for a 3D printer is proposed. Utility Model Content

[0006] In order to make up for the shortcomings of the prior art and the problem of low heat dissipation efficiency, the utility model provides a heat dissipation device for a 3D printer.

[0007] The utility model solves the technical problem by adopting the following technical solution: a heat dissipation device for a 3D printer, comprising a main frame, a moving block is movably installed at the middle part of the top of the main frame, a print head is fixedly installed at the bottom of the moving block, ventilation grooves are provided on both sides of the print head, support frames are threadedly connected to both sides of the print head, a cooling fan is threadedly connected to one side of the support frame, a connecting plate is threadedly connected to the bottom of the connecting plate, a cooling cylinder is fixedly installed at the bottom of the connecting plate, and a water storage chamber is provided inside the cooling cylinder.

[0008] Preferably, a nozzle is fixedly mounted on the bottom of the print head, and quick connectors are fixedly mounted on both ends of the cooling cylinder.

[0009] Preferably, a printing platform is movably mounted on the bottom of the main frame, and a water tank is threadedly connected to the back of the printing platform.

[0010] Preferably, a support plate is fixedly mounted on one side of the top of the water tank, and a water pump is fixedly mounted on the top of the support plate.

[0011] Preferably, a water inlet pipe is fixedly installed on one side of the water pump, and a drain pipe is fixedly installed on the front of the water pump.

[0012] Preferably, a return pipe is fixedly mounted on one side of the cooling cylinder, transverse plates are fixedly mounted on both sides of the moving block, and a hanging ring is fixedly mounted on one end of the transverse plate.

[0013] Preferably, electric guide rails are provided on both sides of the top of the printing platform.

[0014] The beneficial effects of the utility model are:

[0015] 1. The utility model realizes the function of precise heat dissipation through the structural design of the print head, ventilation slots, cooling fans, cooling cylinders, and water storage chambers, and through the mutual cooperation between the structures, thereby more accurately controlling the distribution of energy, avoiding unnecessary energy waste, and improving energy utilization efficiency. Different components of the 3D printer can be zoned for temperature control, protecting key components, and extending their service life, thereby improving the operating stability and reliability of the entire system. In summary, the problem of low heat dissipation efficiency is solved.

[0016] 2. The utility model realizes the function of fixing the drain pipe and the return pipe through the structural design of the horizontal plate and the hanging ring and the mutual cooperation between the structures. Therefore, the drain pipe and the return pipe can be cooled by the cooling fan, thereby reducing the temperature of the pipe surface and then reducing the coolant temperature, ensuring the stable operation of the cooling system and further improving the energy utilization efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 This is a schematic diagram of the front three-dimensional structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model from the back;

[0020] Figure 3 It is a partial enlarged structural schematic diagram of the utility model;

[0021] Figure 4 It is a schematic diagram of the partial assembly structure of the utility model;

[0022] Figure 5 It is a schematic diagram of the structure of a partial cross-section of the utility model.

[0023] In the figure: 1. Main frame; 2. Moving block; 3. Print head; 4. Ventilation slot; 5. Support frame; 6. Cooling fan; 7. Connecting plate; 8. Cooling cylinder; 9. Water storage chamber; 10. Nozzle; 11. Quick connector; 12. Printing platform; 13. Water tank; 14. Support plate; 15. Water pump; 16. Water inlet pipe; 17. Drain pipe; 18. Return pipe; 19. Horizontal plate; 20. Hanging ring; 21. Electric guide rail. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] The following is combined with Figure 1-5 To further explain this application in detail,

[0026] The embodiment of the present application discloses a heat dissipation device for a 3D printer, including a main frame 1, a moving block 2 is movably installed in the middle part of the top of the main frame 1, a print head 3 is fixedly installed at the bottom of the moving block 2, ventilation slots 4 are provided on both sides of the print head 3, support frames 5 are threadedly connected to both sides of the print head 3, a cooling fan 6 is threadedly connected to one side of the support frame 5, a connecting plate 7 is threadedly connected to the bottom of the print head 3, a cooling cylinder 8 is fixedly installed at the bottom of the connecting plate 7, and a water storage chamber 9 is provided inside the cooling cylinder 8.

[0027] Reference Figure 1 , Figure 3 , Figure 4 , Figure 5 Through the structural design of the print head 3, ventilation slots 4, cooling fan 6, cooling cylinder 8, and water storage chamber 9, and through the mutual cooperation between the structures, the function of precise heat dissipation is achieved, thereby more accurately controlling the distribution of energy, avoiding unnecessary energy waste, and improving energy utilization efficiency. Different components of the 3D printer can be zoned for temperature control, protecting key components and extending their service life, thereby improving the operating stability and reliability of the entire system. In summary, the problem of low heat dissipation efficiency is solved.

[0028] A nozzle 10 is fixedly mounted on the bottom of the print head 3 , and quick connectors 11 are fixedly mounted on both ends of the cooling cylinder 8 .

[0029] Reference Figure 3 , Figure 4 , Figure 5 By setting the quick connector 11, the function of connecting the cooling tube 8 with the drain pipe 17 and the return pipe 18 is realized, thereby realizing the circulation of the coolant to dissipate heat for the nozzle.

[0030] A printing platform 12 is movably mounted at the bottom of the main frame 1 , and a water tank 13 is threadedly connected to the back of the printing platform 12 .

[0031] Reference Figure 1 and Figure 2 The water tank 13 is provided to facilitate the carrying of the coolant, thereby facilitating subsequent transportation to the cooling area.

[0032] A support plate 14 is fixedly mounted on one side of the top of the water tank 13 , and a water pump 15 is fixedly mounted on the top of the support plate 14 .

[0033] Reference Figure 2 By setting the water pump 15, the function of conveying the coolant is realized, thereby pressurizing the coolant, thereby ensuring that the hot end components can be continuously and effectively cooled to prevent overheating.

[0034] A water inlet pipe 16 is fixedly installed on one side of the water pump 15 , and a drain pipe 17 is fixedly installed on the front side of the water pump 15 .

[0035] Reference Figure 2 and Figure 3 The setting of the water inlet pipe 16 facilitates cooling and transportation, and the setting of the drain pipe 17 facilitates the transportation of the pressurized coolant to the area to be cooled.

[0036] A return pipe 18 is fixedly installed on one side of the cooling cylinder 8 , and a transverse plate 19 is fixedly installed on both sides of the moving block 2 . A hanging ring 20 is fixedly installed on one end of the transverse plate 19 .

[0037] Reference Figure 1 and Figure 3 Through the structural design of the horizontal plate 19 and the hanging ring 20, and through the mutual cooperation between the structures, the function of fixing the drain pipe 17 and the return pipe 18 is realized, so that the cooling fan 6 can be used to cool the drain pipe 17 and the return pipe 18, thereby reducing the temperature of the pipe surface, and then reducing the coolant temperature, ensuring the stable operation of the cooling system and further improving the energy utilization efficiency.

[0038] Electric guide rails 21 are arranged on both sides of the top of the printing platform 12 .

[0039] Reference Figure 1 and Figure 2 By setting the electric guide rail 21, the main frame 1 can move linearly to complete printing.

[0040] Working principle: When using this device, the drain pipe 17 and the return pipe 18 are fixed by the hanging ring 20, and the drain pipe 17 and the return pipe 18 are connected to the cooling cylinder 8 by the quick connector 11. The high-temperature gas generated by the internal electrical components of the print head 3 is released through the ventilation slot 4, and the release speed of the high-temperature gas is accelerated by the cooling fan 6. At the same time, the surface of the drain pipe 17 and the return pipe 18 can be cooled by accelerating the air flow. After the water pump 15 accelerates the coolant through the water inlet pipe 16, the coolant is transported to the inside of the cooling cylinder 8 through the drain pipe 17, and the coolant is temporarily stored in the water storage chamber 9. The cooling cylinder 8 contacts the nozzle 10 to realize heat exchange, thereby achieving the purpose of heat dissipation and cooling. The coolant in the water storage chamber 9 is released back to the water tank 13 through the return pipe 18.

[0041] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A heat dissipation device for a 3D printer, Features: The invention comprises a main frame (1); a moving block (2) is movably mounted in the middle of the top of the main frame (1); a print head (3) is fixedly mounted at the bottom of the moving block (2); ventilation slots (4) are provided on both sides of the print head (3); support frames (5) are threadedly connected to both sides of the print head (3); a cooling fan (6) is threadedly connected to one side of the support frame (5); a connecting plate (7) is threadedly connected to the bottom of the print head (3); a cooling cylinder (8) is fixedly mounted at the bottom of the connecting plate (7); a water storage chamber (9) is provided inside the cooling cylinder (8).

2. A heat dissipation device for a 3D printer according to claim 1, Features: A nozzle (10) is fixedly mounted on the bottom of the print head (3), and quick connectors (11) are fixedly mounted on both ends of the cooling cylinder (8).

3. A heat dissipation device for a 3D printer according to claim 1, Features: A printing platform (12) is movably mounted on the bottom of the main frame (1), and a water tank (13) is threadedly connected to the back of the printing platform (12).

4. A heat dissipation device for a 3D printer according to claim 3, Features: A support plate (14) is fixedly mounted on one side of the top of the water tank (13), and a water pump (15) is fixedly mounted on the top of the support plate (14).

5. A heat dissipation device for a 3D printer according to claim 4, Features: A water inlet pipe (16) is fixedly mounted on one side of the water pump (15), and a drain pipe (17) is fixedly mounted on the front side of the water pump (15).

6. The heat dissipation device for a 3D printer according to claim 1, Features: A return pipe (18) is fixedly mounted on one side of the cooling cylinder (8), a transverse plate (19) is fixedly mounted on both sides of the moving block (2), and a hanging ring (20) is fixedly mounted on one end of the transverse plate (19).

7. The heat dissipation device for a 3D printer according to claim 3, Features: Electric guide rails (21) are arranged on both sides of the top of the printing platform (12).

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