Anti-scald device for desktop-level 3D printer

Abstract

The utility model provides an anti-scald device for a desktop-level 3D printer. The anti-scald device for the desktop-level 3D printer comprises a printer main body, a moving assembly, a first anti-scald device, a spray head, a heat dissipation device, a hot bed and a second anti-scald device, the moving assembly is installed on the printer main body, the first anti-scald device is installed on the moving assembly, the spray head is installed inside the first anti-scald device, the heat dissipation device is arranged on the first anti-scald device, the hot bed is installed on the printer main body, and the heat dissipation device is installed on the printer main body. According to the anti-scalding device for the desktop-level 3D printer, two potential safety hazards causing scalding of the spray head and the hot bed can be protected, the situation that students are scalded in the teaching process is effectively prevented, heat dissipation can be rapidly conducted on the high-temperature spray head through the heat dissipation device, the heat dissipation efficiency is improved, and the practicability is high. And potential safety hazards are eliminated from the source.

Description

Technical Field

[0001] The utility model relates to the technical field of 3D printing, and in particular to a scalding prevention device for a desktop 3D printer. Background Art

[0002] Desktop 3D printers, as the name suggests, are small printers that can be placed on a desk to print three-dimensional objects. They are a type of 3D printer. Desktop 3D printers usually use FDM, or fused deposition modeling technology, which uses high temperature to melt the material, extrude it into filaments through the print head, and stack it on the component platform. Desktop 3D printers are small in size, light in weight, and simple to operate, so they are easy for students to master. 3D printers can be used to print out students' questions and use models for targeted explanations, which can not only facilitate students' understanding and memory, but also increase students' enthusiasm. Therefore, desktop 3D printers are being used more and more widely in education.

[0003] Because FDM3D printers need to melt materials, the operating temperature of the printer nozzle is very high, reaching 200℃-300℃. Touching the nozzle without sufficient cooling is very likely to cause serious burns. In addition to the nozzle, the temperature of the hot bed of the FDM3D printer to prevent the model from warping and deformation can also cause burns. FDM desktop 3D printers face students during the teaching process, and these hidden dangers can easily cause burns to students. Utility Model Content

[0004] The purpose of the utility model is to provide a scald prevention device for a desktop 3D printer to solve the above problems.

[0005] In order to achieve the above-mentioned purpose, the embodiment of the utility model provides a scalding prevention device for a desktop 3D printer, comprising: a printer body, a moving component, a first scalding prevention device, a nozzle, a heat dissipation device, a heated bed, and a second scalding prevention device;

[0006] The moving component is mounted on the printer body, the first anti-scalding device is mounted on the moving component, the nozzle is mounted inside the first anti-scalding device, the heat dissipation device is arranged on the first anti-scalding device, the hot bed is mounted on the printer body, and the second anti-scalding device is arranged on the hot bed, wherein

[0007] The heat dissipation device is driven, and the heat dissipation device can evenly blow out cold air and blow hot air to quickly cool the nozzle.

[0008] Furthermore, the first anti-scalding device includes a main body guard plate, a top cover plate, a circular hole and a perspective window;

[0009] The main body guard plate is installed on the moving assembly, the top cover plate is clamped and placed above the main body guard plate, the round hole is opened through the top cover plate, and the perspective window is hinged at the front of the main body guard plate, wherein

[0010] The perspective window is lifted, and the perspective window rotates with the hinge point with the main body guard plate as the center of the circle.

[0011] Furthermore, the first anti-scalding device also includes a bolt and a chuck;

[0012] The chuck is fitted and clamped on the outer side of the nozzle, and the four bolts are spirally penetrated through the top cover plate and the chuck.

[0013] Further, the heat dissipation device includes a heat dissipation fan and ventilation holes;

[0014] The cooling fan is installed on the right inner wall of the main body shield, and two groups of ventilation holes are opened on both sides of the main body shield.

[0015] The heat dissipation fan is driven to blow the hot air emitted by the nozzle.

[0016] Furthermore, the second scald prevention device includes a widening platform, a front baffle wall, a rear baffle wall and a side protection portion;

[0017] The widening platform is installed on the side of the hot bed, the front baffle wall and the rear baffle wall are both installed on the widening platform, and two groups of side protection parts are installed on the left and right sides of the widening platform.

[0018] Further, the side protection part includes a side retaining wall and a spring;

[0019] The two ends of the side baffle are slidably connected to the front baffle and the rear baffle, and a through groove fitting the outer contour of the side baffle is opened on the widening platform, one end of a plurality of the springs is mounted on the printer body, and the other end of a plurality of the springs is connected to the bottom of the side baffle, wherein

[0020] The side retaining wall is forced to slide down, and a number of the springs are compressed.

[0021] Furthermore, the material of the front baffle wall, the rear baffle wall and the side baffle wall includes but is not limited to glass;

[0022] The material of the widening platform includes but is not limited to stainless steel.

[0023] Compared with the prior art, the embodiments of the present invention have the following beneficial effects:

[0024] The first anti-scalding device and the second anti-scalding device can respectively protect the two potential safety hazards that may cause scalding, the print head and the hot bed, so that students cannot easily touch them, effectively preventing students from being scalded during the teaching process;

[0025] The heat dissipation device uses cold air to blow away the high-temperature hot air emitted by the nozzle, thereby quickly dissipating the heat of the high-temperature nozzle and eliminating safety hazards at the source;

[0026] The anti-scalding device for a desktop 3D printer has a good anti-scalding function and does not reduce the teaching function and teaching quality of the 3D printer. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0028] Figure 1 Shows a stereogram of the utility model;

[0029] Figure 2 A partial stereogram of the utility model is shown;

[0030] Figure 3 A partial front view of the utility model is shown;

[0031] Figure 4 The utility model is shown Figure 1 A magnified image of point A;

[0032] Figure 5 The utility model is shown Figure 3 Enlarged view of point B.

[0033] In the picture

[0034] 1. Printer body; 2. Mobile components;

[0035] 3. First anti-scalding device; 31. Main body guard plate; 32. Top cover plate; 33. Round hole; 34. Perspective window; 35. Bolt; 36. Chuck;

[0036] 4. Nozzle;

[0037] 5. heat dissipation device; 51. cooling fan; 52. ventilation hole;

[0038] 6. Heated bed;

[0039] 7. Second anti-scalding device; 71. Widening platform; 72. Front baffle wall; 73. Rear baffle wall;

[0040] 74. Side protection part; 741. Side retaining wall; 742. Spring. DETAILED DESCRIPTION

[0041] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0042] See also Figure 1 , Figure 1 Shows a three-dimensional diagram of the utility model; please refer to Figure 2 , Figure 2 Shows a partial stereogram of the utility model; please refer to Figure 3 , Figure 3 Shows a partial front view of the utility model; please refer to Figure 4 , Figure 4 The utility model is shown Figure 1 See the enlarged view of point A in Figure 5 , Figure 5 The utility model is shown Figure 3 The enlarged view of point B; Figure 1-5 As shown, a scalding prevention device for a desktop 3D printer comprises: a printer body 1, a moving component 2, a first scalding prevention device 3, a nozzle 4, a heat dissipation device 5, a hot bed 6 and a second scalding prevention device 7;

[0043] The moving component 2 is mounted on the printer body 1, the first anti-scalding device 3 is mounted on the moving component 2, the nozzle 4 is mounted inside the first anti-scalding device 3, the heat dissipation device 5 is arranged on the first anti-scalding device 3, the hot bed 6 is mounted on the printer body 1, and the second anti-scalding device 7 is arranged on the hot bed 6, wherein

[0044] The heat dissipation device 5 is driven, and the heat dissipation device 5 can evenly blow out cold air and blow hot air to quickly cool down the nozzle 4. The anti-scalding device for the desktop 3D printer can respectively protect the nozzle 4 and the hot bed 6, which are two safety hazards that cause scalding, through the first anti-scalding device 3 and the second anti-scalding device 7, so that students cannot easily touch them, and effectively prevent students from being scalded during the teaching process. The heat dissipation device 5 can quickly dissipate the high-temperature nozzle 4, and eliminate safety hazards from the source. At the same time, the anti-scalding device for the desktop 3D printer will not reduce the teaching function and teaching quality of the 3D printer while having a good anti-scalding function.

[0045] Optionally, the first anti-scalding device 3 includes a main body guard plate 31, a top cover plate 32, a circular hole 33 and a perspective window 34;

[0046] The main body guard plate 31 is installed on the moving assembly 2, the top cover plate 32 is clamped and placed on the main body guard plate 31, the round hole 33 is opened through the top cover plate 32, and the perspective window 34 is hinged at the front of the main body guard plate 31, wherein

[0047] Lift the perspective window 34, and the perspective window 34 rotates with the hinge point with the main body guard plate 31 as the center of the circle. The perspective window 34 can be lifted to ensure that the personnel can further operate the nozzle 4. At the same time, the perspective window 34 will not affect the observation effect of the students. The working status of the nozzle 4 can be clearly observed through the perspective window 34. The circular hole 33 can expose the head of the nozzle 4 to ensure that the printing wire can be inserted into the nozzle 4. The main body guard plate 31, the top cover plate 32 and the perspective window 34 can block the nozzle 4, making it difficult for students to touch the high-temperature nozzle 4 to prevent burns.

[0048] Optionally, the first anti-scalding device 3 further includes a bolt 35 and a chuck 36;

[0049] The chuck 36 is fitted and clamped on the outer side of the nozzle 4, and the four bolts 35 are spirally penetrated through the top cover plate 32 and the chuck 36 to fix the nozzle 4 to prevent the nozzle 4 from falling, etc., and ensure that the first anti-scalding device 3 cannot affect the normal operation of the nozzle 4.

[0050] Optionally, the heat dissipation device 5 includes a heat dissipation fan 51 and ventilation holes 52;

[0051] The cooling fan 51 is installed on the right inner wall of the main body shield 31, and two groups of ventilation holes 52 are opened on both sides of the main body shield 31.

[0052] The cooling fan 51 is driven to blow the hot air emitted by the nozzle 4. During the printing process, the nozzle 4 is heated and emits a large amount of high-temperature hot air, which permeates the first anti-scalding device 3. A group of ventilation holes 52 located on the right side can allow external cold air to enter the first anti-scalding device 3. Since a large amount of high-temperature hot air permeates the first anti-scalding device 3, the gas temperature outside the first anti-scalding device 3 is much lower than the temperature inside the first anti-scalding device 3, so that the cooling fan 51 blows out cold air and blows the high-temperature hot air permeating the first anti-scalding device 3, and blows the high-temperature hot air out through the group of ventilation holes 52 located on the left side. This cycle is repeated. After printing is completed, the nozzle 4 is quickly cooled and cooled to quickly return to normal temperature, thereby eliminating the safety hazard of scalding from the source.

[0053] Optionally, the second anti-scalding device 7 includes a widening platform 71, a front baffle wall 72, a rear baffle wall 73 and a side protection portion 74;

[0054] The widening platform 71 is installed on the side of the hot bed 6, the front baffle wall 72 and the rear baffle wall 73 are both installed on the widening platform 71, and the two groups of side protection parts 74 are installed on the left and right sides of the widening platform 71. The hot bed 6 is a unique accessory of the FDM (fused deposition modeling) printer. Its main purpose is to prevent the edge of the object from warping during 3D printing. Its temperature is generally above 50°C. The front baffle wall 72, the rear baffle wall 73 and the two groups of side protection parts 74 surround the hot bed 6 to protect the hot bed 6 and prevent students from easily touching the hot bed 6 and getting burned. The widening platform 71 ensures that the front baffle wall 72, the rear baffle wall 73 and the two groups of side protection parts 74 will not occupy the area of ​​the hot bed 6, thereby ensuring normal printing.

[0055] Optionally, the side protection portion 74 includes a side retaining wall 741 and a spring 742;

[0056] The two ends of the side retaining wall 741 are slidably connected to the front retaining wall 72 and the rear retaining wall 73, and a through groove that fits the outer contour of the side retaining wall 741 is opened on the widening platform 71. One end of a plurality of the springs 742 is installed on the printer body 1, and the other end of a plurality of the springs 742 is connected to the bottom of the side retaining wall 741.

[0057] The side retaining wall 741 slides down under the force, and some of the springs 742 are compressed. The movable component 2 needs to move in the Z-axis direction, so as to drive the nozzle 4 to complete the printing of the model from bottom to top. When the movable component 2 moves downward, the side retaining wall 741 can be pressed downward to ensure that it will not affect the normal printing. As the printing continues, the movable component 2 gradually moves upward, and the compressed spring 742 slowly rebounds, gradually pushing the side retaining wall 741 back to its original position to restore the protective function.

[0058] Optionally, the materials of the front baffle 72, the rear baffle 73 and the side baffle 741 include but are not limited to glass, which can protect the hot bed 6 and prevent students from being scalded while taking into account the teaching effect and ensuring that students can clearly see the printing process;

[0059] The material of the widening platform 71 includes but is not limited to stainless steel. Stainless steel has poor thermal conductivity and can prevent the heat of the hot bed 6 from being quickly transferred to the front baffle 72 , the rear baffle 73 and the side baffle 741 .

[0060] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A scald prevention device for a desktop 3D printer, characterized in that: include: A printer body (1), a moving component (2), a first anti-scalding device (3), a nozzle (4), a heat dissipation device (5), a heated bed (6), and a second anti-scalding device (7); The moving component (2) is mounted on the printer body (1), the first anti-scalding device (3) is mounted on the moving component (2), the nozzle (4) is mounted inside the first anti-scalding device (3), the heat dissipation device (5) is arranged on the first anti-scalding device (3), the hot bed (6) is mounted on the printer body (1), and the second anti-scalding device (7) is arranged on the hot bed (6), wherein The heat dissipation device (5) is driven, and the heat dissipation device (5) can evenly blow out cold air and blow hot air, so that the nozzle (4) is cooled quickly.

2. A scald prevention device for a desktop 3D printer as claimed in claim 1, characterized in that: The first anti-scalding device (3) comprises a main body guard plate (31), a top cover plate (32), a circular hole (33) and a perspective window (34); The main body guard plate (31) is mounted on the moving assembly (2), the top cover plate (32) is snap-fitted and placed above the main body guard plate (31), the round hole (33) is penetrated and opened on the top cover plate (32), and the perspective window (34) is hinged at the front of the main body guard plate (31), wherein The perspective window (34) is lifted, and the perspective window (34) rotates with the hinge point with the main body guard plate (31) as the center of the circle.

3. A scald prevention device for a desktop 3D printer as claimed in claim 2, characterized in that: The first anti-scalding device (3) further comprises a bolt (35) and a chuck (36); The chuck (36) is fitted and clamped on the outer side of the spray head (4), and the four bolts (35) are spirally inserted through the top cover plate (32) and the chuck (36).

4. The anti-scalding device for a desktop 3D printer as claimed in claim 3, characterized in that: The heat dissipation device (5) comprises a heat dissipation fan (51) and a ventilation hole (52); The cooling fan (51) is installed on the right inner wall of the main body guard plate (31), and two groups of ventilation holes (52) are opened on both sides of the main body guard plate (31). The heat dissipation fan (51) is driven, and the heat dissipation fan (51) blows the hot air emitted by the nozzle (4).

5. The anti-scalding device for a desktop 3D printer as claimed in claim 4, characterized in that: The second scald prevention device (7) comprises a widening platform (71), a front baffle wall (72), a rear baffle wall (73) and a side protection portion (74); The widening platform (71) is mounted on the side of the hot bed (6), the front baffle wall (72) and the rear baffle wall (73) are both mounted on the widening platform (71), and two sets of side protection parts (74) are mounted on the left and right sides of the widening platform (71).

6. The anti-scalding device for a desktop 3D printer as claimed in claim 5, characterized in that: The side protection portion (74) comprises a side blocking wall (741) and a spring (742); The two ends of the side retaining wall (741) are slidably connected to the front retaining wall (72) and the rear retaining wall (73), and a through groove that fits the outer contour of the side retaining wall (741) is opened on the widening platform (71), one end of a plurality of the springs (742) is mounted on the printer body (1), and the other ends of the plurality of the springs (742) are connected to the bottom of the side retaining wall (741), wherein The side retaining wall (741) slides down under the force, and a plurality of the springs (742) are compressed.

7. The anti-scalding device for a desktop 3D printer as claimed in claim 6, characterized in that: The material of the front baffle wall (72), the rear baffle wall (73) and the side baffle wall (741) includes, but is not limited to, glass; The material of the widening platform (71) includes, but is not limited to, stainless steel.

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