Teaching 3D printer with protection function

Abstract

The utility model provides a teaching 3D printer with a protection function. The teaching 3D printer comprises a printer main body, a movable printing nozzle, a protection part, a discharge device and a purification part, the movable printing nozzle is installed on the printer body, the protection part is installed on the movable printing nozzle, the discharging device communicates with the protection part, the purification part is installed on the discharging device, and the purification part is communicated with the protection part. According to the teaching 3D printer with the protection function, through the arrangement of the protection part, the situation that volatile organic compounds such as styrene and harmful substances such as superfine particles generated by heating the wire rod in the printing process fly away arbitrarily in a classroom can be prevented; through the exhaust device and the purification part, gas containing harmful substances blocked by the protection part can be sucked, purified and exhausted, the air quality in a classroom is prevented from being greatly reduced, the physical health of students is protected against damage, and the good teaching function is achieved while the physical health of the students is protected.

Description

Technical Field

[0001] The utility model relates to the technical field of 3D printing teaching and training, and in particular to a 3D printer for teaching with a protective function. Background Art

[0002] Desktop 3D printers use fused deposition modeling technology, or FDM. The working principle is that the heating head heats the hot melt material (ABS, nylon, wax, etc.) to a critical state, presenting a semi-fluid property. Under computer control, along the two-dimensional geometric information movement trajectory determined by the drawing software, the nozzle squeezes out the semi-fluid material and solidifies to form a thin layer of contour shape. When one layer is completed, the new layer is lowered through the vertical lifting system for solidification. In this way, the layers are stacked and bonded to form a three-dimensional entity of a part from bottom to top. Because desktop 3D printers are relatively simple to operate, small in size, easy to get started, and easy for students to master, they can also visualize the content of the book, print out the students' "problems" for targeted explanation, which is convenient for students to understand and make their memory more profound. It can also make students interested in the subject content and cultivate their spirit of exploration. Therefore, desktop 3D printers are increasingly widely used in education.

[0003] During the printing process, the printer nozzle often needs to be heated to about 200°C to melt the material. However, these hot-melt materials will not only release a variety of volatile organic compounds during the heating and melting process, but also release a large number of ultrafine particles with a diameter of less than 0.1 microns, thereby reducing indoor air quality and even causing harm to human health. For example, ABS will release styrene, which is toxic to the human nervous system, respiratory system, and circulatory system. Ultrafine particles will be deposited in the lungs through breathing and even enter the blood circulation system through the alveoli, causing damage to the health of students in the classroom. Utility Model Content

[0004] The purpose of the utility model is to provide a teaching 3D printer with a protective function to solve the above problems.

[0005] In order to achieve the above-mentioned purpose, the embodiment of the utility model provides a teaching 3D printer with a protection function, comprising: a printer body, a movable printing nozzle, a protection part, a discharge device and a purification part;

[0006] The mobile print head is mounted on the printer body, the protection part is mounted on the mobile print head, the discharge device is connected to the protection part, and the purification part is mounted on the discharge device, wherein

[0007] The protection part can block the top of the mobile printing nozzle to prevent harmful substances from scattering indiscriminately;

[0008] The discharge device is driven to generate suction to suck and discharge the harmful substances.

[0009] Further, the protection part includes ear plates, screws, hollow plates and side guard plates;

[0010] The ear plate is attached to the mobile printing nozzle, the two screws spirally pass through the ear plate and enter the interior of the mobile printing nozzle, the hollow plate is connected to the ear plate, and the hollow plate is located above the mobile printing nozzle, and the side guard plate is installed at the bottom of the hollow plate, wherein

[0011] The hollow plate and the side guard plates shield the movable printing nozzle.

[0012] Further, the discharge device includes an exhaust fan, a hose and a through slot;

[0013] One end of the hose is connected to the hollow plate, and the other end of the hose is connected to the air inlet of the exhaust fan. The three through slots are respectively opened at the left, middle and right positions of the bottom of the hollow plate.

[0014] The exhaust fan is driven to generate suction force and fill the interior of the hollow plate through the hose.

[0015] Further, the purification unit includes an extension tube, a grid tray and activated carbon;

[0016] The extension tube is fitted to the air outlet of the exhaust fan, the grid tray is installed inside the extension tube, and a number of activated carbons are placed on the grid tray.

[0017] Furthermore, the protection part also includes a pad;

[0018] The two pads are installed at two corners of the front end of the hollow plate;

[0019] The materials of the two pads include but are not limited to sponge.

[0020] Furthermore, a 3D printer for teaching with a protective function also includes a circular hole;

[0021] The circular hole is formed through the hollow plate.

[0022] Furthermore, the material of the hollow plate and the side guard plate includes but is not limited to glass.

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

[0024] This teaching 3D printer with protective function can prevent harmful substances such as volatile organic compounds such as styrene and ultrafine particles generated by heating the wire during the printing process from floating around in the classroom by setting up a protective part. At the same time, the gas containing harmful substances blocked by the protective part can be sucked in and purified before being discharged through the exhaust device and purification part, preventing a significant decline in the air quality in the classroom and protecting the students' health from damage. It protects the students' health while having good teaching functions. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0026] Figure 1 Shows a stereogram of the utility model;

[0027] Figure 2 Shows a side view of the utility model;

[0028] Figure 3 A partial stereogram of the utility model is shown;

[0029] Figure 4 A partial front view of the utility model is shown;

[0030] Figure 5 The utility model is shown Figure 2 A magnified image of point A;

[0031] Figure 6 The utility model is shown Figure 3 The enlarged view of point B;

[0032] Figure 7 The utility model is shown Figure 4 Enlarged view of point C.

[0033] In the picture

[0034] 1. Printer body;

[0035] 10. Mobile printing nozzle;

[0036] 20. Protective part; 201. Ear plate; 202. Screw; 203. Hollow plate; 204. Side guard plate; 205. Protective pad;

[0037] 30. discharge device; 301. exhaust fan; 302. hose; 303. through slot;

[0038] 40. Purification unit; 401. Extension tube; 402. Grid tray; 403. Activated carbon;

[0039] 50. Round hole. DETAILED DESCRIPTION

[0040] 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.

[0041] See also Figure 1 , Figure 1 Shows a three-dimensional diagram of the utility model; please refer to Figure 2 , Figure 2 Shows a side view of the utility model; see Figure 3 , Figure 3 Shows a partial stereogram of the utility model; please refer to Figure 4 , Figure 4 Shows a partial front view of the utility model; please refer to Figure 5 , Figure 5 The utility model is shown Figure 2 See the enlarged view of point A in Figure 6 , Figure 6 The utility model is shown Figure 3 See the enlarged view of point B in Figure 7 , Figure 7 The utility model is shown Figure 4 The enlarged view of point C; Figure 1-7 As shown, a 3D printer for teaching with a protective function comprises: a printer body 1, a movable printing nozzle 10, a protective part 20, a discharge device 30 and a purification part 40;

[0042] The mobile print head 10 is mounted on the printer body 1, the protection part 20 is mounted on the mobile print head 10, the discharge device 30 is connected to the protection part 20, and the purification part 40 is mounted on the discharge device 30, wherein

[0043] The protection part 20 can block the top of the mobile printing nozzle 10 to prevent harmful substances from scattering indiscriminately;

[0044] The discharge device 30 is driven to generate suction to suck and discharge harmful substances. The teaching 3D printer with a protective function can prevent harmful substances such as volatile organic compounds such as styrene and ultrafine particles generated by heating the wire during printing from scattering in the classroom by setting a protective part 20. At the same time, the gas containing harmful substances blocked by the protective part 20 can be sucked and discharged after purification through the discharge device 30 and the purification part 40, thereby preventing the air quality in the classroom from being greatly reduced, protecting the students' health from being damaged, and protecting the students' health while having good teaching functions.

[0045] Optionally, the protection part 20 includes an ear plate 201, a screw 202, a hollow plate 203 and a side guard plate 204;

[0046] The ear plate 201 is attached to the mobile print head 10, and the two screws 202 are screwed through the ear plate 201 and enter the inside of the mobile print head 10. The hollow plate 203 is connected to the ear plate 201, and the hollow plate 203 is located above the mobile print head 10. The side guard plate 204 is installed at the bottom of the hollow plate 203.

[0047] The hollow plate 203 and the side guard plate 204 shield the mobile printing nozzle 10. The hollow plate 203 prevents harmful substances from scattering upwards, and the side guard plate 204 prevents harmful substances from scattering sideways. Harmful substances are gathered in the space between the hollow plate 203 and the side guard plate 204, effectively preventing harmful substances from scattering at will. When the mobile printing nozzle 10 needs to be maintained, the two screws 202 can be unscrewed to remove the protective part 20.

[0048] Optionally, the discharge device 30 includes an exhaust fan 301, a hose 302 and a through slot 303;

[0049] One end of the hose 302 is connected to the hollow plate 203, and the other end of the hose 302 is connected to the air inlet of the exhaust fan 301. The three through slots 303 are respectively opened at the left, middle and right positions of the bottom of the hollow plate 203.

[0050] The exhaust fan 301 is driven, and the exhaust fan 301 generates suction and fills the inside of the hollow plate 203 through the hose 302. When the wire is heated and printed, the exhaust fan 301 is driven, and the exhaust fan 301 starts to operate and generates suction, which fills the inside of the hollow plate 203 through the hose 302, so that the inside of the hollow plate 203 becomes a negative pressure state, and the harmful substances gathered in the hollow plate 203 and the side guard plate 204 are collectively sucked and discharged from the air outlet of the exhaust fan 301. The through grooves 303 at the left, middle and right positions of the bottom of the hollow plate 203 suck the harmful substances from three positions and collect them into the hose 302, so as to prevent the existence of suction dead corners and avoid harmful substances from scattering outward and being inhaled by students to damage their health. The hose 302 can move with the movement of the mobile printing nozzle 10 without any limitations.

[0051] Optionally, the purification unit 40 includes an extension tube 401, a grid tray 402 and activated carbon 403;

[0052] The extension tube 401 is fitted on the air outlet of the exhaust fan 301, the grid tray 402 is installed inside the extension tube 401, and a number of activated carbons 403 are placed on the grid tray 402. When the gas carrying harmful substances is discharged from the air outlet of the exhaust fan 301, it enters the extension tube 401 and continues to drift upward through the grid tray 402 and the activated carbons 403. During this process, a number of activated carbons 403 adsorb harmful substances such as volatile organic compounds such as styrene and ultrafine particles in the gas, purify the gas, reduce the content of harmful substances in the discharged gas, and prevent the air quality in the classroom from being polluted and deteriorating.

[0053] Optionally, the protection portion 20 further includes a protective pad 205;

[0054] The two pads 205 are installed at two corners of the front end of the hollow plate 203;

[0055] The materials of the two pads 205 include but are not limited to sponge. The soft pads 205 prevent students from directly colliding with the sharp corners of the hollow board 203 and getting injured.

[0056] Optionally, a 3D printer for teaching with a protective function further includes a circular hole 50;

[0057] The circular hole 50 is formed through the hollow plate 203 . The circular hole 50 allows the wire to pass through and enter the mobile printing nozzle 10 . The circular hole 50 can also position the wire to prevent the wire from being skewed or entangled and affecting the feeding.

[0058] Optionally, the material of the hollow plate 203 and the side guard plate 204 includes but is not limited to glass, so that students can observe the printing process through it, ensuring that the teaching 3D printer with protective function has a good teaching function.

[0059] 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 3D printer for teaching with a protective function, characterized in that: include: A printer body (1), a movable print head (10), a protection part (20), a discharge device (30) and a purification part (40); The mobile print head (10) is mounted on the printer body (1), the protection part (20) is mounted on the mobile print head (10), the discharge device (30) is connected to the protection part (20), and the purification part (40) is mounted on the discharge device (30), wherein The protection part (20) can block the top of the mobile printing nozzle (10) to prevent harmful substances from scattering indiscriminately; The discharge device (30) is driven to generate suction force to suck and discharge harmful substances.

2. A 3D printer for teaching with a protective function as claimed in claim 1, characterized in that: The protection part (20) comprises an ear plate (201), a screw (202), a hollow plate (203) and a side guard plate (204); The ear plate (201) is attached to the mobile printing nozzle (10), the two screws (202) are screwed through the ear plate (201) and enter the interior of the mobile printing nozzle (10), the hollow plate (203) is connected to the ear plate (201), and the hollow plate (203) is located above the mobile printing nozzle (10), and the side guard plate (204) is installed at the bottom of the hollow plate (203), wherein The hollow plate (203) and the side guard plate (204) shield the movable printing nozzle (10).

3. A 3D printer for teaching with a protective function as claimed in claim 2, characterized in that: The discharge device (30) comprises an exhaust fan (301), a hose (302) and a through groove (303); One end of the hose (302) is connected to the hollow plate (203), and the other end of the hose (302) is connected to the air inlet of the exhaust fan (301). The three through slots (303) are respectively provided at the left, middle and right positions of the bottom of the hollow plate (203). The exhaust fan (301) is driven to generate suction force which is then filled into the hollow plate (203) through the hose (302).

4. A 3D printer for teaching with a protective function as claimed in claim 3, characterized in that: The purification unit (40) comprises an extension tube (401), a grid tray (402) and activated carbon (403); The extension tube (401) is installed in a close fit at the air outlet of the exhaust fan (301), the grid tray (402) is installed inside the extension tube (401), and a plurality of activated carbons (403) are placed on the grid tray (402).

5. A 3D printer for teaching with a protective function as claimed in claim 4, characterized in that: The protection part (20) further includes a protective pad (205); The two protective pads (205) are installed at two corners of the front end of the hollow plate (203); The materials of the two pads (205) include but are not limited to sponge.

6. A 3D printer for teaching with a protective function as claimed in claim 5, characterized in that ， A 3D printer for teaching with a protective function, further comprising a circular hole (50); The circular hole (50) is opened through the hollow plate (203).

7. A 3D printer for teaching with a protective function as claimed in claim 6, characterized in that: The materials of the hollow plate (203) and the side guard plate (204) include, but are not limited to, glass.

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