Three-dimensional printer

Abstract

The utility model discloses a three-dimensional printer, relates to the technical field of three-dimensional printing, and mainly aims to enable the installation mode of an air purification device in the machine to be adaptive to the development requirements of the three-dimensional printer. According to the main technical scheme of the utility model, the three-dimensional printer comprises a base, a feeding device and a control device, wherein the base is provided with a trough; the first shell is arranged on the base, a containing space is defined between the first shell and the base, and the material groove is located in the containing space; and the air purification device is arranged on the first shell and is used for purifying air in the accommodating space.

Description

Technical Field

[0001] The utility model relates to the technical field of three-dimensional printing, in particular to a three-dimensional printer. Background Art

[0002] Three-dimensional printing, also known as additive manufacturing, is one of the high-tech technologies that has developed rapidly in recent years.

[0003] Among them, during the printing process of the photocuring 3D printer, the photocuring resin consumables will volatilize harmful gases with a certain pungent odor, which will cause certain harm to the human body. Therefore, it is usually necessary to install an air purification device in the machine.

[0004] At present, air purification devices are usually installed on the base inside the machine to purify the air inside the machine. However, with the development of the industry, the functions of printers are constantly increasing and improving, and the functional modules inside the machine will continue to increase. The air purification device occupies the internal space of the machine. Therefore, the installation method of the air purification device in the machine can no longer adapt to the development needs of 3D printers. Utility Model Content

[0005] In view of this, an embodiment of the utility model provides a three-dimensional printer, the main purpose of which is to enable the installation method of the air purification device in the machine to adapt to the development needs of the three-dimensional printer.

[0006] In order to achieve the above purpose, the utility model mainly provides the following technical solutions:

[0007] The present invention provides a three-dimensional printer, comprising:

[0008] A base, wherein a material trough is provided on the base;

[0009] A first shell, wherein the first shell is disposed on the base, an accommodating space is defined between the first shell and the base, and the material trough is located in the accommodating space;

[0010] An air purification device is arranged on the first shell and is used to purify the air in the accommodating space.

[0011] Optionally, the air purification device is arranged on the top of the first shell.

[0012] Optionally, at least part of the air purification device is exposed outside the first shell.

[0013] Optionally, the first shell includes a cover body, the cover body and the base are detachably connected, and when the cover body and the base are connected, the accommodation space is defined between the cover body and the base; or the first shell includes a cover body and a rear side plate, the rear side plate is arranged on the base, the cover body is connected to the rear side plate, and the accommodation space is defined between the cover body, the rear side plate and the base;

[0014] There is at least one air purification device, and the air purification device is arranged on the cover body and / or the rear side plate.

[0015] Optionally, if the air purification device is disposed on the cover body, the air purification device is disposed on the top of the cover body.

[0016] Optionally, a first groove recessed inwardly is provided on the top of the cover body, and a first air outlet communicating with the accommodating space is provided on the groove wall of the first groove;

[0017] The air purification device is disposed in the first groove, and the air inlet of the air purification device is connected to the first air outlet;

[0018] or,

[0019] The top of the cover body is provided with a first convex cavity protruding outward, and the cavity wall of the first convex cavity is provided with a second air outlet connected with the accommodating space;

[0020] The air purification device is disposed in the first convex cavity, and an air inlet of the air purification device is communicated with the accommodating space, and an air outlet of the air purification device is communicated with the second air outlet.

[0021] Optionally, if the first groove is provided at the top of the cover body, the top of the air purification device protrudes from the surface of the cover body;

[0022] The air outlet of the air purification device is located at the top of the air purification device.

[0023] Optionally, the three-dimensional printer further comprises a sealing member. If the first groove is provided at the top of the cover body, the sealing member is provided between the air purification device and the inner wall of the first groove, and the air inlet of the air purification device is sealed and connected with the first air outlet through the sealing member.

[0024] If the first convex cavity is provided at the top of the cover body, the sealing member is provided between the air purification device and the cavity wall of the first convex cavity, and the air inlet of the air purification device is sealed and connected with the accommodating space through the sealing member.

[0025] Optionally, if the sealing member is disposed between the air purification device and the groove wall of the first groove, the inner wall of the first groove includes a groove bottom wall and an inner side wall;

[0026] The first air outlet is at least provided on the bottom wall of the slot; the air inlet of the air purification device is arranged opposite to the first air outlet;

[0027] The sealing member is interference fit with the groove side wall and / or the air purification device.

[0028] If the sealing member is disposed between the air purification device and the cavity wall of the first convex cavity, the cavity wall of the first convex cavity includes a cavity top wall and a cavity side wall;

[0029] The second air outlet is at least opened on the top wall of the cavity; the air outlet of the air purification device is arranged opposite to the second air outlet.

[0030] The sealing member is interference fit with the cavity side wall and / or the air purification device.

[0031] Optionally, a gap is provided between at least an inner wall of the entrance portion of the first groove and at least a portion of an outer wall of the air purification device, and a width of the gap is 0.8 cm to 3 cm.

[0032] Optionally, if the top of the cover body is provided with the first groove, the contour shape of the first groove is adapted to the contour shape of the air purification device;

[0033] The top of the cover body is provided with the first convex cavity, and the contour shape of the first convex cavity is adapted to the contour shape of the air purification device.

[0034] Optionally, if the air purification device is disposed on the rear side plate, a third air outlet communicating with the accommodating space is provided on the rear side plate;

[0035] The air purification device is detachably connected to the inner surface of the rear side plate, the air inlet of the air purification device is connected to the accommodating space, and the air outlet of the air purification device is connected to the third air outlet;

[0036] Optionally, if the air purification device is disposed on the rear side plate, a second groove recessed inwardly is disposed on the rear side plate, and a fourth air outlet communicating with the accommodating space is disposed on an inner wall of the second groove;

[0037] The air purification device is disposed in the second groove, and the air inlet of the air purification device is connected to the fourth air outlet;

[0038] or,

[0039] If the air purification device is arranged on the rear side plate, a second convex cavity protruding outward is arranged on the rear side plate, and a fifth air outlet communicating with the accommodating space is opened on the cavity wall of the second convex cavity;

[0040] The air purification device is disposed in the second convex cavity, and the air inlet of the air purification device is communicated with the accommodating space, and the air outlet of the air purification device is communicated with the fifth air outlet.

[0041] Optionally, the air inlet of the air purification device is arranged opposite to the air outlet of the air purification device;

[0042] The air inlet of the air purification device includes a first air inlet and a second air inlet, the first air inlet is arranged opposite to the air outlet of the air purification device, and the second air inlet is arranged adjacent to the air outlet of the air purification device.

[0043] Optionally, the air purification device includes a second shell and a fan and a filter element arranged in the second shell, and the air inlet and the air outlet of the air purification device are both opened on the second shell.

[0044] Optionally, the air purification device further comprises a power supply and a switch button electrically connected to the power supply;

[0045] The power source is disposed in the second housing; the switch button is disposed on the second housing,

[0046] And exposed outside the second shell.

[0047] By means of the above technical solution, the utility model has at least the following beneficial effects:

[0048] The three-dimensional printer provided by the embodiment of the utility model includes a base and a first shell disposed on the base, and a containing space including a material trough is defined between the first shell and the base, and an air purification device is disposed on the first shell for purifying the air in the containing space. Since the air purification device is disposed on the first shell, the air purification device does not occupy the installation space of the functional module, and can facilitate the miniaturization of the three-dimensional printer, thereby meeting the current development needs of the three-dimensional printer. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] Figure 1 A schematic structural diagram of a three-dimensional printer provided by an embodiment of the utility model at a first viewing angle;

[0050] Figure 2 A schematic structural diagram of a three-dimensional printer provided by an embodiment of the utility model at a second viewing angle;

[0051] Figure 3 for Figure 2 The enlarged schematic diagram of point A in the middle;

[0052] Figure 4 A schematic diagram of the structure of an air purification device for a three-dimensional printer provided by an embodiment of the utility model;

[0053] Figure 5 A schematic diagram of the structure of a three-dimensional printer provided by an embodiment of the utility model at a third viewing angle;

[0054] Figure 6 for Figure 5 The enlarged schematic diagram of point B in the middle;

[0055] Figure 7 A partial structural schematic diagram of a three-dimensional printer provided by an embodiment of the utility model;

[0056] Figure 8 for Figure 7 Enlarged schematic diagram of point C in the middle.

[0057] Description of reference numerals:

[0058] 1-base; 11-material trough; 2-first shell; 21-cover; 211-first groove; 212-first air outlet; 22-rear side panel; 3-air purification device; 31-air inlet of air purification device; 311-first air inlet; 312-second air inlet; 32-air outlet of air purification device; 33-second shell; 34-switch button; 4-seal; 5-handle position. DETAILED DESCRIPTION

[0059] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution in the embodiment of the utility model will be described in more detail below in conjunction with the drawings in the preferred embodiments of the utility model.

[0060] like Figure 1 and Figure 7 As shown, the embodiment of the utility model provides a 3D printer, characterized in that it includes a base 1, on which a material tank 11 is provided, and the material tank 11 is used to store light-curable resin; a first shell 2 is provided on the base 1, and a receiving space is defined between the first shell 2 and the base 1, and the material tank 11 is located in the receiving space. When the 3D printer is printing, harmful gases generated by the light-curable resin in the material tank 11 are stored in the receiving space; an air purification device 3 is provided on the first shell 2, and is used to purify the air in the receiving space.

[0061] The three-dimensional printer provided by the embodiment of the utility model includes a base 1 and a first shell 2 disposed on the base 1, and a containing space including a material trough 11 is defined between the first shell 2 and the base 1, and an air purification device 3 is disposed on the first shell 2 for purifying the air in the containing space. Since the air purification device 3 is disposed on the first shell 2 instead of on the base 1, the air purification device 3 does not occupy the installation space of the functional module, and thus from another perspective, the desktop space occupied by the three-dimensional printer as a whole can be reduced, thereby meeting the current development needs of the three-dimensional printer.

[0062] In some embodiments, the air purification device 3 may be disposed on the top of the first housing 2 .

[0063] In the above embodiment, the first shell 2 may be a cover body, which may be connected to the base 1 in a snap-fit ​​manner, and the two define a receiving space provided with the material slot 11. The cover body may be a transparent cover for shielding the curing light to prevent the curing light from causing harm to the human body.

[0064] By arranging the air purification device 3 on the top of the first shell 2, on the first hand, the air purification device 3 can occupy as little as possible, or even no volume of the accommodating space, which is convenient for the installation of the functional modules of the 3D printer in the accommodating space, and thus from another perspective can reduce the desktop space occupied by the 3D printer as a whole; on the second hand, if the volume of the air purification device 3 is large, the larger air purification device 3 can be firmly placed on the top of the cover body through the action of gravity, thereby improving the overall stability of the 3D printer; on the third hand, it is convenient for the disassembly and assembly of the air purification device 3; it is also convenient for the filter element replacement and switch adjustment of the air purification device 3.

[0065] In addition, since the photocurable resin in the material tank 11 will emit a certain amount of heat due to curing during the printing process of the 3D printer, the temperature of the photocurable resin in the material tank 11 will increase, thereby causing the temperature in the accommodating space to increase accordingly, and the harmful gas generated by the photocurable resin will float up with the hot air. If the air purification device 3 is installed on the top of the first shell 2, it is more conducive to all harmful gases entering the air purification device 3 for purification, and the purification effect of the harmful gas is better.

[0066] There are many ways to arrange the air purification device 3 on the top of the first housing 2. For example, the air purification device 3 can be directly installed on the top surface of the first housing 2 by fasteners; or a groove or a convex cavity can be provided on the top surface of the first housing 2 to arrange the air purification device in the groove or the convex cavity.

[0067] In some embodiments, at least part of the air purification device 3 can be exposed outside the first housing 2, so that the air purification device 3 occupies as little volume as possible, or even no volume of the accommodation space, thereby facilitating the installation of the functional modules of the 3D printer in the accommodation space. In addition, it can also facilitate the disassembly and assembly of the air purification device 3, as well as the replacement of the filter element and switch adjustment of the air purification device 3.

[0068] In some embodiments, see Figure 1 and Figure 7 The first shell 2 may include a cover 21 and a rear side plate 22, the rear side plate 22 is arranged on the base 1, the cover 21 is connected to the rear side plate 22, and an accommodation space is defined between the cover 21, the rear side plate 22 and the base 1. Specifically, the cover 21 can be rotatably connected to the rear side plate 22, and the cover 21 can be rotated relative to the rear side plate 22 to open or close the accommodation space; the number of the air purification device 3 is at least one, and the air purification device 3 is arranged on the cover 21 and / or the rear side plate 22. Among them, the cover 21 can be a transparent cover for shielding the curing light to prevent the curing light from causing harm to the human body.

[0069] In some embodiments, if the air purifier 3 is disposed on the cover 21, the air purifier 3 is disposed on the top of the cover 21. On the one hand, the air purifier 3 can occupy as little as possible, or even not occupy the volume of the accommodation space, so as to facilitate the installation of the functional modules of the 3D printer in the accommodation space; on the other hand, if the volume of the air purifier 3 is large, the air purifier 3 with a large volume can be firmly placed on the top of the cover by gravity, thereby improving the overall stability of the 3D printer; on the third hand, it is convenient to disassemble and assemble the air purifier 3; it is also convenient to replace the filter element of the air purifier 3 and adjust the switch button on the surface of the air purifier 3, which can enhance the user's experience of using the air purifier, and the switch control of the air purification inside the cover can be realized without opening the cover of the 3D printer.

[0070] In addition, since the photocurable resin in the material tank 11 will emit a certain amount of heat due to curing during the printing process of the 3D printer, the temperature of the photocurable resin in the material tank 11 will increase, thereby causing the temperature in the accommodating space to increase accordingly, and the harmful gas generated by the photocurable resin will float up with the hot air. If the first groove 211 is set at the top of the cover body 21, and the air purification device 3 is located at the top of the cover body 21, it is more conducive to all harmful gases entering the air purification device 3 for purification, and the purification effect of the harmful gases is better.

[0071] In some embodiments, see Figure 1 , Figure 2 and Figure 3The top of the cover body 21 may be provided with a first groove 211 recessed inwardly, and a first air outlet 212 communicating with the accommodating space may be provided on the groove wall of the first groove 211; the air purification device 3 may be arranged in the first groove 211, and the air inlet of the air purification device 3 is communicated with the first air outlet 212.

[0072] Among them, by setting a first groove 211 that is recessed inwardly at the top of the cover body 21, the air purification device 3 is set in the first groove 211, and the air purification device 3 is installed on the cover body 21 without adding additional connecting parts, which has a simple structure and reduces costs. In addition, a first air outlet 212 that is connected to the accommodating space is opened on the groove wall of the first groove 211, and the air inlet of the air purification device 3 is connected to the first air outlet 212, so that the air purification device 3 can draw the air in the accommodating space into the air purification device 3 through the first air outlet 212, and after being purified by the air purification device 3, the air is discharged outside the printer through its air outlet 32, thereby achieving the purification of the air in the accommodating space by the air purification device 3.

[0073] In some other embodiments, the top of the cover body 21 may be provided with a first convex cavity protruding outward, and a second air outlet connected to the accommodating space is opened on the cavity wall of the first convex cavity; the air purification device 3 is arranged in the first convex cavity, and the air inlet 31 of the air purification device 3 is connected to the accommodating space, and the air outlet 32 ​​of the air purification device 3 is connected to the second air outlet.

[0074] Among them, by setting a first convex cavity protruding outward on the top of the cover body 21, the air purification device 3 is set in the first convex cavity. Without adding additional connecting components, the air purification device 3 is installed on the cover body 21, which has a simple structure and reduces costs.

[0075] Since the second air outlet connected to the accommodating space is provided on the cavity wall of the first convex cavity, the air inlet 31 of the air purification device 3 is connected to the accommodating space, and the air outlet 32 ​​of the air purification device 3 is connected to the second air outlet, the air purification device 3 can directly draw the air in the accommodating space into the air purification device 3, and after purification, the air is discharged out of the printer through the air outlet 32, thereby realizing the purification of the air in the accommodating space by the air purification device 3. Such a structural setting can increase the contact area between the air purification device 3 and the air in the accommodating space, thereby improving the purification efficiency of the air in the accommodating space, and further improving the air purification effect.

[0076] In some embodiments, see Figure 1 , Figure 5 and Figure 6 If a first groove 211 is provided on the top of the cover body 21 , the top of the air purification device 3 protrudes from the surface of the cover body 21 .

[0077] That is, a part of the air purifier 3 is exposed outside the cover 21, so that the air purifier 3 occupies as little volume as possible, or even no volume, of the accommodation space, thereby facilitating the installation of the functional modules of the 3D printer in the accommodation space. In addition, it is also convenient for the user to grasp the air purifier 3, thereby facilitating the disassembly and assembly of the air purifier 3, as well as the replacement of the filter element and the switch adjustment of the air purifier 3.

[0078] In some embodiments, see Figure 1 and Figure 3 The air outlet 32 ​​of the air purification device 3 can be located at the top of the air purification device 3.

[0079] Since the top of the air purification device 3 protrudes from the surface of the cover body 21, the air outlet 32 ​​of the air purification device 3 is located at the top of the air purification device 3, so that the air outlet 32 ​​of the device can be connected with the external air. On the one hand, it is convenient for the purified air to be discharged from the printer, and on the other hand, an external circulation can be formed. The external circulation can better drive the air flow, and the purification effect of the air purification device 3 is better.

[0080] In some embodiments, see Figure 2 , Figure 3 , Figure 5 and Figure 6 The 3D printer may further include a seal 4. If a first groove 211 is provided on the top of the cover body 21, the seal 4 is provided between the air purification device 3 and the groove wall of the first groove 211, and the air inlet of the air purification device 3 is sealed and connected with the first air outlet 212 through the seal 4.

[0081] Among them, the seal 4 can make the first air outlet 212 and the air inlet 31 of the air purification device 3 sealed and connected, so that the harmful gas extracted from the first air outlet 212 by the air purification device 3 will all enter the air purification device 3 without leaking into the air, thereby further improving the purification effect of the air purification device 3 on the harmful gas.

[0082] If a first convex cavity is provided on the top of the cover body 21 , the seal 4 is provided between the air purification device 3 and the cavity wall of the first convex cavity, and the air inlet 31 of the air purification device 3 is sealed and connected to the accommodating space through the seal 4 .

[0083] Among them, the seal 4 can make the accommodating space and the air inlet 31 of the air purification device 3 sealed and connected, so that the harmful gas in the accommodating space will not leak to the outside of the cover body 21, but all enter the air purification device 3 through the air inlet 31 of the air purification device 3 for purification, thereby further improving the purification effect of the air purification device 3 on the harmful gas.

[0084] In some embodiments, see Figure 2 , Figure 3 and Figure 4 If the seal 4 is arranged between the air purification device 3 and the groove wall of the first groove 211, the groove wall of the first groove 211 may include a groove bottom wall and a groove side wall; the first air outlet 212 is at least opened on the groove bottom wall; the air inlet of the air purification device 3 is arranged opposite to the first air outlet 212; the seal 4 may have an interference fit with the groove side wall and / or the air purification device.

[0085] Among them, the seal 4 can be a sealing ring, which can be sleeved on the outer wall of the air purification device 3, and can seal the first air outlet 212 and the air inlet of the air purification device 3 at the lower part of the first groove 211, thereby realizing a sealed connection between the air inlet of the air purification device 3 and the first air outlet 212.

[0086] In addition, the sealing ring is sleeved on the outer peripheral wall of the air purification device 3 and has an interference fit with the groove side wall and / or the air purification device 3, so that the air purification device 3 is tightly fitted in the first groove 211, thereby ensuring the installation stability of the air purification device 3 in the first groove 211. At the same time, when the air purification device 3 needs to be cleaned and maintained, only an outward pulling force is applied to the air purification device 3 to overcome the friction between the sealing ring and the inner wall of the first groove 211, and the air purification device 3 can be removed, so that the air purification device 3 can be quickly installed and removed, and it is more convenient to use.

[0087] In some other embodiments, if the seal 4 is arranged between the air purification device 3 and the cavity wall of the first convex cavity, the cavity wall of the first convex cavity may include a cavity top wall and a cavity side wall; the second air outlet is at least opened on the cavity top wall; the air outlet 32 ​​of the air purification device 3 is arranged opposite to the second air outlet; the seal 4 may have an interference fit with the cavity side wall and / or the air purification device.

[0088] The sealing member 4 may be a sealing ring, which may be sleeved on the outer peripheral wall of the air purification device 3 , and may seal the air inlet 31 and the accommodating space of the air purification device 3 .

[0089] In addition, the sealing ring is sleeved on the outer peripheral wall of the air purification device 3 and has an interference fit with the cavity side wall and / or the air purification device 3, thereby achieving a tight fit of the air purification device 3 in the first convex cavity 1, thereby ensuring the installation stability of the air purification device 3 in the first convex cavity.

[0090] When the air purifier 3 needs to be cleaned and maintained, it is only necessary to apply a force to pull out the air purifier 3 to overcome the friction between the sealing ring and the wall of the first convex cavity, and remove the air purifier 3; when the air purifier 3 needs to be installed, it is only necessary to apply a force in the opposite direction to the air purifier 3 to install the air purifier 3 in the first convex cavity. The air purifier 3 can be quickly installed and removed, making it more convenient to use.

[0091] In order to further facilitate the disassembly and assembly of the air purification device 3, in some embodiments, see Figure 5 and Figure 6 A gap is provided between at least the inner wall of the entrance of the first groove 211 and the air purification device 3 , and the width of the gap may be 0.8 cm to 3 cm.

[0092] Among them, the gap with a width of 0.8 cm to 3 cm can be at least partially entered by the user's fingers, so that the user's hand can apply force to the air purifier 3 to pull out the air purifier 3 from the first groove 211, or install the air purifier 3 into the first groove 211, thereby facilitating the disassembly and assembly of the air purifier 3, and at the same time can avoid the problem of dust deposition on the equipment caused by excessive gap redundancy to a certain extent or avoid the crowding out of the space in the cover to a certain extent.

[0093] That is to say, the air purification device 3 can form a hand-holding position 5. Specifically, the hand-holding position 5 can be arranged along the entire circumference of the first groove 211. When the air purification device 3 needs to be disassembled, the user can insert a finger into the hand-holding position 5 and grasp the air purification device 3, so as to apply an external force to the air purification device 3, thereby conveniently pulling the air purification device 3 out of the first groove 211; accordingly, when the air purification device 3 needs to be installed, the user can hold the air purification device 3 and insert it into the first groove 211, thereby conveniently installing the air purification device 3.

[0094] In some embodiments, if a first groove 211 is provided at the top of the cover 21, the contour of the first groove 211 can be adapted to the contour of the air purifying device 3; if a first convex cavity is provided at the top of the cover 21, the contour of the first convex cavity can be adapted to the contour of the air purifying device 3. This facilitates the installation of the air purifying device 3 in the first groove 211 or the first convex cavity. For example, the air purifying device 3, the first groove 211 and the first convex cavity can all be in the shape of a rectangular parallelepiped.

[0095] Among them, if a first groove 211 is provided at the top of the cover body 21, the size of the upper part of the air purification device 3 can be larger than the size of the lower part thereof, and a first step is formed between the upper and lower parts thereof, the size of the upper part of the first groove 211 is larger than the size of the lower part thereof, and a second step is formed between the upper and lower parts of the first groove 211, and the first step is supported on the second step.

[0096] In some embodiments, see Figure 7 and Figure 8 If the air purification device 3 is arranged on the rear side panel 22, a third air outlet connected to the accommodating space is provided on the rear side panel 22; the air purification device 3 can be detachably connected to the inner surface of the rear side panel 22, the air inlet of the air purification device 3 is connected to the accommodating space, and the air outlet 32 ​​of the air purification device 3 is connected to the third air outlet.

[0097] Among them, a third air outlet connected to the accommodating space is opened on the rear side panel 22, and the air inlet of the air purification device 3 is connected to the third air outlet, so that the air purification device 3 can draw the air in the accommodating space into the air purification device 3 through the third air outlet, and after being purified by the air purification device 3, the air is discharged outside the printer through its air outlet 32, thereby realizing the purification of the air in the accommodating space by the air purification device 3.

[0098] There may be a variety of detachable connection methods between the air purification device 3 and the rear side panel 22, such as bolt connection, snap connection, etc.

[0099] In some embodiments, see Figure 7 and Figure 8 The air inlet 31 of the air purification device 3 can be arranged opposite to the air outlet 32 ​​of the air purification device 3; the air inlet 31 of the air purification device 3 may include a first air inlet 311 and a second air inlet 312, the first air inlet 311 is arranged opposite to the air outlet 32 ​​of the air purification device 3, and the second air inlet 312 is arranged adjacent to the air outlet 32 ​​of the air purification device 3.

[0100] That is to say, in the air purification device 3, a first air inlet 311 can be set on the side opposite to the air outlet 32, a second air inlet 312 can be set on the side adjacent to the air outlet 32, and the side adjacent to the air outlet 32 ​​can be the peripheral side of the air purification device 3. Such a structural arrangement can allow the harmful gas in the accommodating space to enter the air purification device 3 from multiple directions for purification, so that the harmful gas can be almost completely purified, thereby improving the purification effect of the air purification device 3.

[0101] Alternatively, in some embodiments, if the air purification device 3 is disposed on the rear side panel 22, a second groove recessed inwardly may be provided on the rear side panel 22, and a fourth air outlet connected to the accommodating space may be provided on the inner wall of the second groove; the air purification device 3 may be disposed in the second groove, and the air inlet 31 of the air purification device 3 may be connected to the fourth air outlet.

[0102] Among them, by setting a second groove recessed inwardly on the rear side plate 22, the air purification device 3 is set in the second groove, and the installation of the air purification device 3 on the rear side plate 22 is realized without adding additional connecting parts, which has a simple structure and reduces costs. During the printing process of the three-dimensional printer, the air purification device 3 can draw the air in the accommodating space into the air purification device 3 through the fourth air outlet, and after being purified by the air purification device 3, it is discharged out of the printer through its air outlet 32, which can also realize the purification of the air in the accommodating space by the air purification device 3.

[0103] In some other embodiments, if the air purification device 3 is disposed on the rear side plate 22, a second convex cavity protruding outward may be disposed on the rear side plate 22, and a fifth air outlet communicating with the accommodating space is provided on the cavity wall of the second convex cavity;

[0104] The air purification device 3 is disposed in the second convex cavity, and the air inlet 31 of the air purification device 3 is communicated with the accommodating space, and the air outlet 32 ​​of the air purification device 3 is communicated with the fifth air outlet.

[0105] Among them, by providing a second groove protruding outward on the rear side plate 22, the air purification device 3 is arranged in the second convex cavity, and the installation of the air purification device 3 on the rear side plate 22 is realized without adding additional connecting components, which has a simple structure and reduces costs. During the printing process of the 3D printer, the air purification device 3 can directly extract the air in the accommodating space, and after purification, discharge it out of the printer through its air outlet 32, which can also realize the purification of the air in the accommodating space by the air purification device 3, and can reduce the desktop space occupied by the overall 3D printing.

[0106] Moreover, such a structural arrangement can also increase the contact area between the air purification device 3 and the air in the accommodating space, thereby improving the purification efficiency of the air in the accommodating space, and further improving the air purification effect.

[0107] In some embodiments, the air purification device 3 may include a second housing 33 and a fan and a filter element disposed in the second housing 33. The air inlet 31 and the air outlet 32 ​​of the air purification device 3 are both provided on the second housing 33. The fan is used to draw harmful air in the accommodation space into the second housing 33 through the air inlet 31, so that the harmful air is filtered by the filter element and then discharged from the air outlet 32, thereby achieving air purification.

[0108] In some embodiments, see Figure 4 The air purification device 3 may further include a power source and a switch button 34 electrically connected to the power source; the power source is disposed in the second housing 33; the switch button 34 is disposed on the second housing 33 and exposed outside the second housing 33. The power source may be a battery.

[0109] That is to say, the air purification device 3 has a built-in power supply, so that it can be powered independently, and a switch button 34 is provided on the second housing 33, so that the switch can be independently controlled, which is more convenient to use. Of course, when the air purification device is set in the first groove 211 or the second groove, the switch button 34 is exposed outside the corresponding groove.

[0110] Embodiment 1. A three-dimensional printer, comprising:

[0111] A base 1, on which a material trough 11 is arranged;

[0112] A first shell 2, the first shell 2 is disposed on the base 1, and an accommodating space is defined between the first shell 2 and the base 1, and the material trough 11 is located in the accommodating space;

[0113] The air purification device 3 is disposed on the first shell 2 and is used for purifying the air in the accommodating space.

[0114] Embodiment 2. A three-dimensional printer according to embodiment 1,

[0115] The air purification device 3 is disposed on the top of the first housing 2 .

[0116] Embodiment 3. A three-dimensional printer according to embodiment 2,

[0117] At least part of the air purification device 3 is exposed outside the first shell.

[0118] Embodiment 4. A three-dimensional printer according to embodiment 1,

[0119] The first shell 2 includes a cover 21, and the cover 21 and the base 1 are detachably connected. When the cover 21 and the base are connected, an accommodation space is defined between the cover 21 and the base; or the first shell 2 includes the cover 21 and a rear side plate 22, the rear side plate 22 is arranged on the base 1, the cover 21 is connected to the rear side plate 22, and an accommodation space is defined between the cover 21, the rear side plate 22 and the base 1;

[0120] There is at least one air purification device 3 , and the air purification device 3 is disposed on the cover body 21 and / or the rear side plate 22 .

[0121] Embodiment 5. A three-dimensional printer according to embodiment 4,

[0122] If the air purification device 3 is disposed on the cover body 21 , the air purification device 3 is disposed on the top of the cover body 21 .

[0123] Embodiment 6. A three-dimensional printer according to embodiment 5,

[0124] The top of the cover body 21 is provided with a first groove 211 which is recessed inwards, and a first air outlet 212 which is in communication with the accommodating space is provided on the groove wall of the first groove 211;

[0125] The air purification device 3 is disposed in the first groove 211, and the air inlet 31 of the air purification device 3 is connected to the first air outlet 212;

[0126] or,

[0127] The top of the cover body 21 is provided with a first convex cavity protruding outward, and a second air outlet communicating with the accommodating space is provided on the cavity wall of the first convex cavity;

[0128] The air purification device 3 is disposed in the first convex cavity, and the air inlet 31 of the air purification device 3 is communicated with the accommodating space, and the air outlet 32 ​​of the air purification device 3 is communicated with the second air outlet.

[0129] Embodiment 7. A three-dimensional printer according to embodiment 6,

[0130] If the top of the cover body 21 is provided with a first groove 211 , the top of the air purification device 3 protrudes from the surface of the cover body 21 ;

[0131] The air outlet 32 ​​of the air purification device 3 is located at the top of the air purification device 3 .

[0132] Embodiment 8. A three-dimensional printer according to embodiment 6,

[0133] The three-dimensional printer also includes a sealing member 4;

[0134] If a first groove 211 is provided at the top of the cover body 21, the seal 4 is provided between the air purification device 3 and the groove wall of the first groove 211, and the air inlet 31 of the air purification device 3 is sealed and connected with the first air outlet 212 through the seal 4;

[0135] If a first convex cavity is provided on the top of the cover body 21 , the seal 4 is provided between the air purification device 3 and the cavity wall of the first convex cavity, and the air inlet 31 of the air purification device 3 is sealed and connected with the accommodating space through the seal 4 .

[0136] Embodiment 9. A three-dimensional printer according to embodiment 8,

[0137] If the sealing member 4 is disposed between the air purification device 3 and the groove wall of the first groove 211, the groove wall of the first groove 211 includes a groove bottom wall and a groove side wall;

[0138] The first air outlet 212 is at least provided on the bottom wall of the slot; the air inlet 31 of the air purification device 3 is arranged opposite to the first air outlet 212;

[0139] The seal 4 is interference fit with the groove side wall and / or the air purification device;

[0140] If the sealing member 4 is disposed between the air purification device 3 and the cavity wall of the first convex cavity, the cavity wall of the first convex cavity includes a cavity top wall and a cavity side wall;

[0141] The second air outlet is at least provided on the top wall of the cavity; the air outlet 32 ​​of the air purification device 3 is arranged opposite to the second air outlet;

[0142] The sealing member 4 is interference fit with the cavity side wall and / or the air purification device.

[0143] Embodiment 10. A three-dimensional printer according to embodiment 6,

[0144] A gap is provided between at least the inner wall of the entrance of the first groove 211 and at least a portion of the outer wall of the air purification device 3 , and the width of the gap is 0.8 cm to 3 cm.

[0145] Embodiment 11. A three-dimensional printer according to embodiment 6,

[0146] If a first groove 211 is provided on the top of the cover body 21, the contour shape of the first groove 211 is adapted to the contour shape of the air purification device 3;

[0147] If a first convex cavity is provided on the top of the cover body 21 , the contour shape of the first convex cavity is matched with the contour shape of the air purification device 3 .

[0148] Embodiment 12. A three-dimensional printer according to embodiment 4,

[0149] If the air purification device 3 is disposed on the rear side plate 22, a third air outlet communicating with the accommodating space is provided on the rear side plate 22;

[0150] The air purification device 3 is detachably connected to the inner surface of the rear side plate 22 , the air inlet 31 of the air purification device 3 is communicated with the accommodating space, and the air outlet 32 ​​of the air purification device 3 is communicated with the third air outlet.

[0151] Embodiment 13. A three-dimensional printer according to embodiment 4,

[0152] If the air purification device 3 is disposed on the rear side plate 22, a second groove recessed inwardly is disposed on the rear side plate 22, and a fourth air outlet communicating with the accommodating space is disposed on the groove wall of the second groove;

[0153] The air purification device 3 is disposed in the second groove, and the air inlet 31 of the air purification device 3 is connected to the fourth air outlet;

[0154] or,

[0155] If the air purification device 3 is disposed on the rear side plate 22, a second convex cavity protruding outward is disposed on the rear side plate 22, and a fifth air outlet communicating with the accommodating space is disposed on the cavity wall of the second convex cavity;

[0156] The air purification device 3 is disposed in the second convex cavity, and the air inlet 31 of the air purification device 3 is communicated with the accommodating space, and the air outlet 32 ​​of the air purification device 3 is communicated with the fifth air outlet.

[0157] Embodiment 14. A three-dimensional printer according to embodiment 12,

[0158] The air inlet 31 of the air purification device 3 is arranged opposite to the air outlet 32 ​​of the air purification device 3;

[0159] The air inlet 31 of the air purification device 3 includes a first air inlet 311 and a second air inlet 312 . The first air inlet 311 is arranged opposite to the air outlet 32 ​​of the air purification device 3 , and the second air inlet 312 is arranged adjacent to the air outlet 32 ​​of the air purification device 3 .

[0160] Embodiment 15. The three-dimensional printer according to embodiment 1,

[0161] The air purification device 3 includes a second shell 33 and a fan and a filter element arranged in the second shell 33 . The air inlet 31 and the air outlet 32 ​​of the air purification device 3 are both opened on the second shell 33 .

[0162] Embodiment 16. A three-dimensional printer according to embodiment 15,

[0163] The air purification device 3 also includes a power supply and a switch electrically connected to the power supply.

[0164] button 34; the power supply is arranged in the second shell 33; the switch button 34 is arranged on the second shell 33 and exposed outside the second shell 33.

[0165] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A three-dimensional printer, characterized in that: include: A base, wherein a material trough is provided on the base; A first shell, wherein the first shell is disposed on the base, an accommodating space is defined between the first shell and the base, and the material trough is located in the accommodating space; An air purification device is arranged on the first shell and is used to purify the air in the accommodating space.

2. The three-dimensional printer according to claim 1, characterized in that: The air purification device is arranged on the top of the first shell.

3. The three-dimensional printer according to claim 2, characterized in that: At least a portion of the air purification device is exposed outside the first shell.

4. The three-dimensional printer according to claim 1, characterized in that: The first shell includes a cover body, the cover body and the base are detachably connected, and when the cover body and the base are connected, the accommodating space is defined between the cover body and the base; Or the first shell includes a cover body and a rear side plate, the rear side plate is arranged on the base, the cover body is connected to the rear side plate, and the accommodating space is defined between the cover body, the rear side plate and the base; There is at least one air purification device, and the air purification device is arranged on the cover body and / or the rear side plate.

5. The three-dimensional printer according to claim 4, characterized in that: If the air purification device is arranged on the cover body, the air purification device is arranged on the top of the cover body.

6. The three-dimensional printer according to claim 5, characterized in that: The top of the cover body is provided with a first groove which is recessed inwards, and a first air outlet which is in communication with the accommodating space is provided on the groove wall of the first groove; The air purification device is disposed in the first groove, and the air inlet of the air purification device is connected to the first air outlet; or, The top of the cover body is provided with a first convex cavity protruding outward, and the cavity wall of the first convex cavity is provided with a second air outlet connected with the accommodating space; The air purification device is disposed in the first convex cavity, and an air inlet of the air purification device is communicated with the accommodating space, and an air outlet of the air purification device is communicated with the second air outlet.

7. The three-dimensional printer according to claim 6, characterized in that: If the first groove is provided on the top of the cover body, the top of the air purification device protrudes from the surface of the cover body; The air outlet of the air purification device is located at the top of the air purification device.

8. The three-dimensional printer according to claim 6, characterized in that: The three-dimensional printer also includes a sealing member; If the first groove is provided on the top of the cover body, the sealing member is provided between the air purification device and the groove wall of the first groove, and the air inlet of the air purification device is sealed and connected with the first air outlet through the sealing member; If the first convex cavity is provided at the top of the cover body, the sealing member is provided between the air purification device and the cavity wall of the first convex cavity, and the air inlet of the air purification device is sealed and connected with the accommodating space through the sealing member.

9. The three-dimensional printer according to claim 8, characterized in that: If the sealing member is disposed between the air purification device and the groove wall of the first groove, the groove wall of the first groove includes a groove bottom wall and a groove side wall; The first air outlet is at least provided on the bottom wall of the slot; the air inlet of the air purification device is arranged opposite to the first air outlet; The sealing member is interference fit with the groove side wall and / or the air purification device; If the sealing member is disposed between the air purification device and the cavity wall of the first convex cavity, the cavity wall of the first convex cavity includes a cavity top wall and a cavity side wall; The second air outlet is at least opened on the top wall of the cavity; the air outlet of the air purification device is arranged opposite to the second air outlet; The sealing member is interference fit with the cavity side wall and / or the air purification device.

10. The three-dimensional printer according to claim 6, characterized in that: A gap is provided between at least an inner wall of the entrance of the first groove and at least a portion of an outer wall of the air purification device, and a width of the gap is 0.8 cm to 3 cm.

11. The three-dimensional printer according to claim 6, characterized in that: If the first groove is provided on the top of the cover body, the contour shape of the first groove is adapted to the contour shape of the air purification device; If the first convex cavity is provided on the top of the cover body, the contour shape of the first convex cavity is matched with the contour shape of the air purification device.

12. The three-dimensional printer according to claim 4, characterized in that: If the air purification device is arranged on the rear side plate, a third air outlet communicating with the accommodating space is provided on the rear side plate; The air purification device is detachably connected to the inner surface of the rear side plate, the air inlet of the air purification device is communicated with the accommodating space, and the air outlet of the air purification device is communicated with the third air outlet.

13. The three-dimensional printer according to claim 4, characterized in that: If the air purification device is arranged on the rear side plate, a second groove recessed inwardly is arranged on the rear side plate, and a fourth air outlet communicating with the accommodating space is arranged on the groove wall of the second groove; The air purification device is disposed in the second groove, and the air inlet of the air purification device is connected to the fourth air outlet; or, If the air purification device is arranged on the rear side plate, a second convex cavity protruding outward is arranged on the rear side plate, and a fifth air outlet communicating with the accommodating space is arranged on the cavity wall of the second convex cavity; The air purification device is disposed in the second convex cavity, and the air inlet of the air purification device is communicated with the accommodating space, and the air outlet of the air purification device is communicated with the fifth air outlet.

14. The three-dimensional printer according to claim 12, characterized in that: The air inlet of the air purification device is arranged opposite to the air outlet of the air purification device; The air inlet of the air purification device includes a first air inlet and a second air inlet, the first air inlet is arranged opposite to the air outlet of the air purification device, and the second air inlet is arranged adjacent to the air outlet of the air purification device.

15. The three-dimensional printer according to claim 1, characterized in that: The air purification device comprises a second shell, and a fan and a filter element arranged in the second shell. The air inlet and the air outlet of the air purification device are both opened on the second shell.

16. The three-dimensional printer according to claim 15, characterized in that: The air purification device also includes a power supply and a switch button electrically connected to the power supply; the power supply is arranged in the second shell; the switch button is arranged on the second shell and exposed outside the second shell.

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