ABS-based gas collection device for 3D printer

Abstract

The invention discloses a gas collecting device for a 3D printer based on ABS, and relates to the technical field of 3D printing. Comprising a permanent magnet, the outer wall of the permanent magnet is fixedly connected with a blowing part, the blowing part comprises an air supply assembly, and an adsorption assembly is fixedly installed on the inner wall of the air supply assembly; the air collecting device comprises an air blowing component and an air suction component, the outer wall of the air suction component is fixedly connected with the outer wall of the air blowing component, the air suction component comprises an air exhaust assembly, and a filtering assembly is fixedly installed on the inner wall of the air exhaust assembly. Waste gas generated by the printer can be quickly and effectively sucked into the device through the gas suction groove and the gas suction groove in the bottom of the mounting shell, it is ensured that the waste gas cannot be diffused in a printing area, the waste gas collection efficiency is improved, and the purpose of the gas collection device for the 3D printer based on the ABS is achieved through the gas collection device.

Description

Technical Field

[0001] The invention relates to the technical field of 3D printing, and in particular to an ABS-based gas collecting device for a 3D printer. Background Art

[0002] With the rapid development of 3D printing technology, its application in many fields is becoming more and more extensive. ABS (Acrylonitrile-Butadiene-Styrene Copolymer) is a commonly used 3D printing material. It is widely used in 3D printing operations because of its good mechanical properties, chemical corrosion resistance and easy processing and molding.

[0003] However, when using ABS materials for 3D printing, waste gas containing harmful substances such as acrylonitrile and styrene will inevitably be generated. If these harmful waste gases are not effectively treated, they will pose a serious threat to the health of operators. In existing 3D printing equipment, only some simple ventilation devices are set up for local air circulation, and effective negative pressure cannot be formed to attract waste gas, so that some waste gas still remains in the working environment, increasing the risk of operators being exposed to harmful waste gas. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the shortcomings of the prior art, the present invention provides an ABS-based air collecting device for a 3D printer, which solves the problem of attracting the exhaust gas generated by the printer into the device, ensures that the exhaust gas will not spread in the printing area, improves the efficiency of exhaust gas collection, and reduces the chance of operators being exposed to harmful exhaust gas.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: an ABS-based air collecting device for a 3D printer, comprising a permanent magnet, the outer wall of the permanent magnet is fixedly connected with a blowing component, the blowing component comprises an air supply component, the inner wall of the air supply component is fixedly connected to the outer wall of the permanent magnet, and the inner wall of the air supply component is fixedly installed with an adsorption component; an air suction component, the outer wall of the air suction component is fixedly connected to the outer wall of the blowing component, the air suction component comprises an exhaust component, the outer wall of the exhaust component is fixedly connected to the outer wall of the air supply component, A filter assembly is fixedly installed on the inner wall of the air extraction component; the air extraction component includes a main half shell, the inner wall of the top of the main half shell is fixedly connected to a fan assembly, the fan assembly includes a fan fixing plate and six groups of fans, the inner wall of the bottom of the main half shell is fixedly connected to a contraction shell, the inner wall of the top of the main half shell is fixedly connected to an expansion shell, the bottom of the expansion shell is fixedly connected to a circular tube, the outer wall of the bottom of the main half shell is fixedly connected to an air intake pipe, the bottom of the air intake pipe is fixedly connected to a mounting shell via a bellows, and the top of the bellows is fixedly connected to the bottom of the air intake pipe.

[0008] Preferably, the inner wall of the mounting shell is fixedly connected with an iron-absorbing block, and the iron-absorbing blocks are arranged in a circular array along the central axis of the mounting shell, the inner wall of the mounting shell is fixedly connected with a rubber strip, the material of the rubber strip is soft rubber material, and the rubber strip is arranged in a circular array along the central axis of the mounting shell, and the top of the main half shell is fixedly connected with an air collecting shell.

[0009] Preferably, the outer walls on both sides of the gas collecting shell are fixedly connected to the gas duct through the gas pipe, and the bottom of the gas pipe is fixedly connected to the outer wall of the gas duct, the top of the shrinkage shell is fixedly connected to the bottom of the circular tube, the bottom of the corrugated tube is fixedly connected to the outer wall of the mounting shell, and the inner wall of the mounting shell is fixedly connected to a heat conducting plate, the material of the heat conducting plate is a heat conducting metal material, and the heat conducting plates are arranged in a circular array along the central axis of the mounting shell.

[0010] Preferably, ventilation grooves are opened in the wall of the heat conduction plate, and the ventilation grooves are arranged in a linear array along the outer wall of the heat conduction plate, air suction grooves are opened in the wall of the mounting shell, and the air suction grooves are arranged in a circular array along the central axis of the mounting shell, air exhaust grooves are opened at the bottom of the mounting shell, and the air exhaust grooves are arranged in a circular array along the central axis of the mounting shell, and the bottom of the gas supply pipe is fixedly connected to the outer wall of the gas collecting shell.

[0011] Preferably, the filter assembly includes a sealing cover plate, the outer wall of the sealing cover plate is fixedly connected to a semicircular shell through a pressure plate, and the outer wall of the pressure plate is fixedly connected to the outer wall of the semicircular shell, the bottom of the semicircular shell is rotatably connected to a mounting column through a positioning plate, and the outer wall of the positioning plate is rotatably connected to the bottom of the mounting column, the outer wall of the mounting column is plugged with a filter cartridge, and the filter cartridge is composed of a HEPA filter.

[0012] Preferably, the outer wall of the top of the semicircular shell is fixedly connected to a limiting plate, the inner wall of the limiting plate is plugged into the top of the mounting column, the outer wall of the semicircular shell is pressed and sealed with the outer wall of the circular tube, the outer wall of the pressure plate is pressed and sealed with the inner wall of the main half shell, the outer wall of the main half shell is clamped with the outer wall of the sealing cover plate through a buckle, and the outer wall of the main half shell is fixedly connected with a buckle.

[0013] Preferably, the air supply assembly includes a secondary half shell, the top of the secondary half shell is fixedly connected to a connecting shell, the outer walls on both sides of the connecting shell are fixedly connected to a corrugated hose through a pump air pipe, and the bottom of the pump air pipe is fixedly connected to the outer wall of the corrugated hose, and the end of the corrugated hose away from the pump air pipe is fixedly connected to an air blowing ring.

[0014] Preferably, an oblique groove is opened in the wall of the blowing ring, and the oblique groove is a notch facing away from the center line of the blowing ring, and the oblique grooves are arranged in a circular array along the central axis of the blowing ring, the end of the pump air pipe away from the corrugated hose is fixedly connected to the outer wall of the connecting shell, the outer wall of the bottom of the auxiliary half shell is fixedly connected to the end of the air duct away from the air pipe, and the outer walls on both sides of the auxiliary half shell are fixedly connected with blocks.

[0015] Preferably, the adsorption assembly includes a mounting plate, which is provided with two groups, and the outer wall of each group of the mounting plates is fixedly connected to a fixed shell, and the fixed shell is provided with two groups, and the inner wall of each group of the fixed shell is fixedly installed with an activated carbon block, and the activated carbon block is composed of a breathable cloth bag filled with activated carbon and pressed together, a through groove is opened in the wall at the bottom of the fixed shell, and the through grooves are arranged in a linear array along the outer wall of the fixed shell, the outer wall of the fixed shell is slidably connected to the inner wall of the secondary half shell, the outer wall of the secondary half shell is pressed and sealed with the outer wall of the mounting plate, and the outer wall of the mounting plate is clamped with the outer wall of the clamping block.

[0016] (III) Beneficial effects

[0017] The present invention provides an ABS-based gas collecting device for a 3D printer, which has the following beneficial effects:

[0018] (I) The air collecting device for a 3D printer based on ABS is provided with an air suction component. The fan assembly in the air suction component generates suction according to the Bernoulli principle. The exhaust gas generated by the printer can be quickly and effectively attracted into the device through the exhaust groove and the air suction groove at the bottom of the mounting shell, thereby ensuring that the exhaust gas will not spread in the printing area, improving the efficiency of exhaust gas collection, reducing the chance of operators being exposed to harmful exhaust gas, and effectively protecting the health of operators. The temperature conduction plate on the inner wall of the mounting shell can adjust the temperature of the mounting shell according to the principle of heat conduction, avoiding adverse effects of excessively high or low temperatures on the print nozzle, protecting the normal working performance of the print nozzle, extending the service life of the print nozzle, and ensuring the stability and continuity of the printing work.

[0019] (ii) The air collecting device for an ABS-based 3D printer is provided with an air blowing component. The air blowing ring in the air blowing component ejects an outwardly expanding airflow according to the principle of fluid mechanics, which can blow ABS debris, dust and other particles generated during the printing process away from the printing area, keep the printing area clean, and prevent the debris from affecting subsequent printing work. In addition, the airflow can also cool the printed material, which helps to improve the quality of the printed material and the molding effect.

[0020] (III) The gas collecting device for the ABS-based 3D printer is provided with an adsorption component. The activated carbon block in the adsorption component physically adsorbs the harmful organic gas and odor molecules remaining in the gas. The HEPA filter in the filtration component can intercept and adsorb particulate matter in the exhaust gas. Through the dual purification process of adsorption and filtration, the exhaust gas is deeply purified, making the exhaust gas cleaner and reducing the pollution to the working environment and the atmospheric environment.

[0021] (IV) The gas collecting device for the ABS-based 3D printer is arranged in an adsorption component. When the activated carbon block needs to be replaced, it is only necessary to release the clamping connection between the clamping block and the mounting plate, and then the fixed shell can be pulled out for replacement. In the filter component, when the filter cartridge is replaced, the restriction of the buckle on the main half shell to the sealing cover plate is released, the semicircular shell is taken out, and the filter cartridge can be pulled out after the restriction of the limit plate is released by rotating the mounting column. This convenient maintenance and replacement design reduces the maintenance cost and difficulty of the equipment, improves the use efficiency of the equipment, and extends the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 is a cross-sectional view of the present invention;

[0024] Figure 3 It is a structural schematic diagram of the air extraction component of the present invention;

[0025] Figure 4 It is a structural schematic diagram of the installation shell of the present invention;

[0026] Figure 5 It is a schematic diagram of the structure of A of the present invention;

[0027] Figure 6 It is a schematic diagram of the structure of the filter assembly of the present invention;

[0028] Figure 7 It is a structural schematic diagram of the air supply assembly of the present invention;

[0029] Figure 8 It is a structural schematic diagram of the air blowing ring of the present invention;

[0030] Fig. 9 It is a schematic structural diagram of the adsorption component of the present invention.

[0031] In the figure: 1, permanent magnet; 2, air suction component; 3, air blowing component; 4, filter assembly; 5, air extraction component; 6, adsorption component; 7, air supply component; 41, sealing cover plate; 42, pressure plate; 43, semicircular shell; 44, limit plate; 45, mounting column; 46, filter cartridge; 47, positioning plate; 51, main half shell; 52, air collecting shell; 53, air supply pipe; 54, fan assembly; 55, expansion shell; 56, round tube; 57, contraction shell; 58, Inlet pipe; 59, gas delivery duct; 510, bellows; 511, mounting shell; 512, magnetic block; 513, air suction groove; 514, rubber strip; 515, heat conduction plate; 516, ventilation groove; 517, air exhaust groove; 61, mounting plate; 62, fixed shell; 63, through groove; 64, activated carbon block; 71, auxiliary half shell; 72, connecting shell; 73, pump air pipe; 75, block; 77, corrugated hose; 78, blowing ring; 79, inclined groove.

[0032] Specific implementation party

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] See also Figure 1-9The present invention provides a technical solution: an ABS-based gas collecting device for a 3D printer, comprising a permanent magnet 1. The permanent magnet 1, as a key basic component of the entire gas collecting device, not only provides a certain structural support for the device, but also utilizes its own magnetic properties to achieve adsorption and fixation with the metal shell of the printer, which is convenient for the installation and positioning of the device. The outer wall of the permanent magnet 1 is fixedly connected with a blowing component 3. The blowing component 3 includes an air supply component 7. The inner wall of the air supply component 7 is fixedly connected to the outer wall of the permanent magnet 1. The inner wall of the air supply component 7 is fixedly installed with an adsorption component 6; an air suction component 2. The outer wall of the air suction component 2 is fixedly connected to the outer wall of the air blowing component 3. The air suction component 2 comprises an air extraction component 5, the outer wall of the air extraction component 5 is fixedly connected to the outer wall of the air supply component 7, and the inner wall of the air extraction component 5 is fixedly installed with a filter component 4; the air extraction component 5 comprises a main half shell 51, the inner wall of the top of the main half shell 51 is fixedly connected to a fan component 54, the inner wall of the bottom of the main half shell 51 is fixedly connected to a contraction shell 57, the inner wall of the top of the main half shell 51 is fixedly connected to an expansion shell 55, the bottom of the expansion shell 55 is fixedly connected to a round tube 56, the outer wall of the bottom of the main half shell 51 is fixedly connected to an air inlet pipe 58, the bottom of the air inlet pipe 58 is fixedly connected to a mounting shell 511 through a bellows 510, and the top of the bellows 510 is fixedly connected to the bottom of the air inlet pipe 58.

[0035] The inner wall of the mounting shell 511 is fixedly connected with an iron magnet 512, and the iron magnet 512 is arranged in a circular array along the central axis of the mounting shell 511. The inner wall of the mounting shell 511 is fixedly connected with a rubber strip 514, and the rubber strip 514 is arranged in a circular array along the central axis of the mounting shell 511. The top of the main half shell 51 is fixedly connected with the gas collecting shell 52, and the outer walls on both sides of the gas collecting shell 52 are fixedly connected with the gas delivery pipe 59 through the gas delivery pipe 53, and the bottom of the gas delivery pipe 53 is fixedly connected to the outer wall of the gas delivery pipe 59. The top of the shrink shell 57 is fixedly connected to the bottom of the circular tube 56, and the bottom of the bellows 510 is fixedly connected to the outer wall of the mounting shell 511. Fixed connection, the inner wall of the mounting shell 511 is fixedly connected with a heat conducting plate 515, and the heat conducting plate 515 is arranged in a circular array along the central axis of the mounting shell 511, ventilation grooves 516 are opened in the wall of the heat conducting plate 515, and the ventilation grooves 516 are arranged in a linear array along the outer wall of the heat conducting plate 515, the wall of the mounting shell 511 is opened with air suction grooves 513, and the air suction grooves 513 are arranged in a circular array along the central axis of the mounting shell 511, the bottom of the mounting shell 511 is opened with air exhaust grooves 517, and the air exhaust grooves 517 are arranged in a circular array along the central axis of the mounting shell 511, and the bottom of the gas supply pipe 53 is fixedly connected to the outer wall of the gas collecting shell 52.

[0036] The filter assembly 4 includes a sealing cover plate 41, the outer wall of the sealing cover plate 41 is fixedly connected to a semicircular shell 43 through a pressing plate 42, and the outer wall of the pressing plate 42 is fixedly connected to the outer wall of the semicircular shell 43, the bottom of the semicircular shell 43 is rotatably connected to a mounting post 45 through a positioning plate 47, and the outer wall of the positioning plate 47 is rotatably connected to the bottom of the mounting post 45, and the outer wall of the mounting post 45 is plugged with a filter cartridge 46, the outer wall of the top of the semicircular shell 43 is fixedly connected to a limiting plate 44, the inner wall of the limiting plate 44 is plugged with the top of the mounting post 45, and the semicircular shell 43 is fixedly connected to the outer wall of the limiting plate 44. The outer wall is pressed and sealed with the outer wall of the circular tube 56, the outer wall of the pressure plate 42 is pressed and sealed with the inner wall of the main half shell 51, and the outer wall of the main half shell 51 is clamped with the outer wall of the sealing cover plate 41 through a buckle. When the filter cartridge 46 needs to be replaced, it is only necessary to release the restriction of the buckle on the main half shell 51 on the sealing cover plate 41, and then take out the semicircular shell 43, and forcefully rotate the mounting column 45 in the direction away from the limit plate 44 to release the restriction of the limit plate 44 on the mounting column 45, and then pull the filter cartridge 46 out of the mounting column 45, so as to facilitate the replacement of the filter cartridge 46.

[0037] The air supply assembly 7 includes a secondary half shell 71, the top of which is fixedly connected to a connecting shell 72, the outer walls of both sides of the connecting shell 72 are fixedly connected to a corrugated hose 77 through a pump air pipe 73, and the bottom of the pump air pipe 73 is fixedly connected to the outer wall of the corrugated hose 77, and the end of the corrugated hose 77 away from the pump air pipe 73 is fixedly connected to a blowing ring 78, and an inclined groove 79 is opened in the wall of the blowing ring 78. According to the principle of fluid mechanics, the gas is ejected from the inclined groove 79 to a point away from the center of the blowing ring 78, forming an outwardly expanding airflow in the printing area. On the one hand, the airflow can ABS debris, dust and other particles are blown away from the printing area to prevent them from scattering, and the printed material can be cooled; on the other hand, the exhaust gas generated in the central printing area can be preliminarily guided to make it easier to be collected by the suction component 2, and the inclined grooves 79 are arranged in a circular array along the central axis of the blowing ring 78, and the end of the pump air pipe 73 away from the corrugated hose 77 is fixedly connected to the outer wall of the connecting shell 72, the outer wall of the bottom of the auxiliary half shell 71 is fixedly connected to the end of the air duct 59 away from the air pipe 53, and the outer walls on both sides of the auxiliary half shell 71 are fixedly connected with blocks 75.

[0038] The adsorption assembly 6 includes a mounting plate 61, which is provided with two groups, and the outer wall of each group of mounting plates 61 is fixedly connected to a fixed shell 62, and the fixed shell 62 is provided with two groups, and the inner wall of each group of fixed shells 62 is fixedly installed with an activated carbon block 64, the activated carbon block 64 has a rich microporous structure and a huge specific surface area, and can physically adsorb harmful organic gases (such as acrylonitrile, styrene, etc.) and some odor molecules remaining in the gas, a through groove 63 is opened in the wall at the bottom of the fixed shell 62, and the through groove 63 is arranged in a linear array along the outer wall of the fixed shell 62, the outer wall of the fixed shell 62 is slidably connected to the inner wall of the auxiliary half shell 71, the outer wall of the auxiliary half shell 71 is pressed and sealed with the outer wall of the mounting plate 61, and the outer wall of the mounting plate 61 is clamped with the outer wall of the clamping block 75.

[0039] In the field of printing, when using ABS materials for printing operations, waste gas containing harmful substances such as acrylonitrile and styrene will inevitably be generated. If these waste gases are not effectively treated, they will cause serious harm to the health of operators and the working environment. This ABS-based printer gas collection device, through the coordinated operation of various components, realizes the efficient collection and purification of ABS printing waste gas. Its specific working principle is as follows:

[0040] As a key basic component of the entire air collecting device, the permanent magnet 1 not only provides a certain structural support for the device, but also uses its own magnetic properties to be adsorbed and fixed to the metal shell of the printer, which is convenient for the installation and positioning of the device. At the same time, the outer wall of the permanent magnet 1 is fixedly connected to the blowing component 3, providing a stable installation foundation for the blowing component 3, ensuring the stability of the blowing component 3 during operation.

[0041] The blowing component 3 is mainly composed of an air supply component 7 and an adsorption component 6. The inner wall of the air supply component 7 is fixedly connected to the outer wall of the permanent magnet 1. It includes a secondary half shell 71, a connecting shell 72, a pump air pipe 73, a corrugated hose 77 and a blowing ring 78. When working, the gas source delivers gas to the pump air pipe 73 through the connecting shell 72, and the gas is transmitted to the blowing ring 78 through the corrugated hose 77. The corrugated hose 77 has good flexibility and can adapt to the changes in the installation position of the device and the displacement during the working process to ensure the smoothness of gas transmission. The blowing ring 78 The wall is provided with inclined grooves 79 arranged in a circular array along its central axis. According to the principles of fluid mechanics, gas is ejected from the inclined grooves 79 away from the center of the blowing ring 78 to form an outward-expanding airflow in the printing area. On the one hand, the airflow can blow ABS debris, dust and other particles generated during the printing process away from the printing area to prevent them from floating around, and can cool the printed material; on the other hand, it can preliminarily guide the exhaust gas generated in the central printing area to make it easier to be collected by the suction component 2.

[0042] The adsorption component 6 is fixedly installed on the inner wall of the air supply component 7, and is composed of two groups of mounting plates 61, two groups of fixed shells 62 and an activated carbon block 64 installed on the inner wall of the fixed shell 62. When the gas passes through the inside of the air supply component 7, according to the adsorption principle of activated carbon, the activated carbon block 64 has a rich microporous structure and a huge specific surface area, which can physically adsorb harmful organic gases (such as acrylonitrile, styrene, etc.) and some odor molecules remaining in the gas. The through groove 63 at the bottom of the fixed shell 62 ensures that the gas can pass smoothly and fully contact with the activated carbon block 64, thereby achieving further purification of the gas. At the same time, the outer wall of the mounting plate 61 and the secondary half shell 71 are pressed and sealed, and the clamping structure of the mounting plate 61 and the clamping block 75 ensures the stable installation and good sealing of the adsorption component 6 to prevent gas leakage. When the activated carbon block 64 needs to be replaced, it is only necessary to release the clamping of the clamping block 75 on the mounting plate 61, and then the fixed shell 62 can be pulled out, so as to facilitate the replacement of the activated carbon block 64 inside the fixed shell 62.

[0043] The air suction component 2 is composed of an exhaust assembly 5 and a filter assembly 4, and is the core part for realizing waste gas collection and preliminary purification. The fan assembly 54 fixedly connected to the top inner wall of the main half shell 51 is the power source of the exhaust assembly 5. When the fan assembly 54 is working, according to the Bernoulli principle in fluid mechanics, the rotation of the fan blades forms a negative pressure area inside the main half shell 51, thereby generating suction to attract the waste gas generated by the printer into the device.

[0044] The exhaust gas first enters the device through the exhaust groove 517 and the suction groove 513 at the bottom of the installation shell 511. The magnetic blocks 512 on the inner wall of the installation shell 511 are arranged in a circular array along the central axis, and the rubber strips 514 are also arranged in a circular array along the central axis. Therefore, before performing the exhaust work, it is only necessary to align the center of the installation shell 511 with the print nozzle of the printer, and the installation can be completed by adsorbing the magnetic block 512 on the print nozzle. When the print nozzle is not made of metal material and the magnetic block 512 cannot be adsorbed, the rubber strip 514 inside the installation shell 511 can be stuck between the installation shell 511 and the print nozzle to limit the position of the installation shell 511. It should be noted that the lowest point of the installation shell 511 cannot be lower than the lowest height of the print nozzle to prevent affecting the normal operation of the print nozzle.

[0045] After the exhaust gas enters the mounting shell 511, it flows upward through the ventilation grooves 516 in the wall of the heat conduction plate 515. The heat conduction plate 515 is arranged in a circular array along the central axis of the mounting shell 511. The temperature of the mounting shell 511 can be adjusted according to the principle of heat conduction to avoid adverse effects of excessively high or low temperatures on the print nozzle. The exhaust gas enters the main half shell 51 through the air inlet pipe 58 and the bellows 510. The contraction shell 57 at the bottom of the main half shell 51 can initially converge and accelerate the airflow to make it flow upward more smoothly. After passing through the circular tube 56 and the expansion shell 55, it enters the air collecting shell 52. The outer walls on both sides of the air collecting shell 52 are connected to the air supply assembly 7 through the air supply pipe 53 and the air supply duct 59 to transport the exhaust gas to the air supply assembly 7 for treatment.

[0046] The filter assembly 4 is located inside the circular tube 56. The filter assembly 4 includes a sealing cover plate 41, a pressing plate 42, a semicircular shell 43, a positioning plate 47, a mounting column 45 and a filter cartridge 46. The sealing cover plate 41 is fixedly connected to the semicircular shell 43 through the pressing plate 42. The bottom of the semicircular shell 43 is rotatably connected to the mounting column 45 through the positioning plate 47. The outer wall of the mounting column 45 is plugged with the filter cartridge 46. The limiting plate 44 at the top of the semicircular shell 43 is plugged with the top of the mounting column 45 to limit the mounting column 45 and ensure the stable installation of the filter cartridge 46. The outer wall of the semicircular shell 43 is pressed and sealed with the outer wall of the circular tube 56. The outer wall of the pressure plate 42 is pressed and sealed with the inner wall of the main half shell 51, and the outer wall of the main half shell 51 is snap-connected with the outer wall of the sealing cover plate 41 by means of buckles. These sealing and connecting structures ensure that the exhaust gas can only be purified through the filter cartridge 46 and will not leak. When the filter cartridge 46 needs to be replaced, it is only necessary to release the restriction of the buckle on the main half shell 51 on the sealing cover plate 41, and then take out the semicircular shell 43, and forcefully rotate the mounting column 45 away from the limit plate 44 to release the restriction of the limit plate 44 on the mounting column 45, and then pull the filter cartridge 46 out of the mounting column 45, so as to facilitate the replacement of the filter cartridge 46.

[0047] When the exhaust gas enters the filter cartridge 46, according to the filtering principle, the filter material HEPA filter in the filter cartridge 46 can intercept and adsorb particulate matter in the exhaust gas, such as ABS particles, dust, etc. and harmful gases. The HEPA filter can effectively filter tiny particles, thereby achieving deep purification of the exhaust gas.

[0048] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0049] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A gas collecting device for a 3D printer based on ABS, comprising a permanent magnet (1), characterized in that: The outer wall of the permanent magnet (1) is fixedly connected to a blowing component (3), the blowing component (3) comprises an air supply component (7), the inner wall of the air supply component (7) is fixedly connected to the outer wall of the permanent magnet (1), and the inner wall of the air supply component (7) is fixedly mounted with an adsorption component (6); An air suction component (2), wherein the outer wall of the air suction component (2) is fixedly connected to the outer wall of the air blowing component (3), the air suction component (2) comprises an air extraction component (5), the outer wall of the air extraction component (5) is fixedly connected to the outer wall of the air supply component (7), and a filter component (4) is fixedly mounted on the inner wall of the air extraction component (5); The air extraction component (5) comprises a main half shell (51), the inner wall of the top of the main half shell (51) is fixedly connected to a fan component (54), the inner wall of the bottom of the main half shell (51) is fixedly connected to a contraction shell (57), the inner wall of the top of the main half shell (51) is fixedly connected to an expansion shell (55), the bottom of the expansion shell (55) is fixedly connected to a circular tube (56), the outer wall of the bottom of the main half shell (51) is fixedly connected to an air intake pipe (58), the bottom of the air intake pipe (58) is fixedly connected to a mounting shell (511) via a bellows (510), and the top of the bellows (510) is fixedly connected to the bottom of the air intake pipe (58).

2. The gas collecting device for a 3D printer based on ABS according to claim 1, characterized in that: An inner wall of the mounting shell (511) is fixedly connected to an iron-absorbing block (512), and the iron-absorbing block (512) is arranged in a ring array along the central axis of the mounting shell (511); a rubber strip (514) is fixedly connected to the inner wall of the mounting shell (511), and the rubber strip (514) is arranged in a ring array along the central axis of the mounting shell (511); and a gas collecting shell (52) is fixedly connected to the top of the main half shell (51).

3. The gas collecting device for a 3D printer based on ABS according to claim 2, characterized in that: The outer walls on both sides of the gas collecting shell (52) are fixedly connected to the gas delivery duct (59) via the gas delivery pipe (53), and the bottom of the gas delivery pipe (53) is fixedly connected to the outer wall of the gas delivery duct (59), the top of the shrink shell (57) is fixedly connected to the bottom of the circular tube (56), the bottom of the bellows (510) is fixedly connected to the outer wall of the mounting shell (511), and the inner wall of the mounting shell (511) is fixedly connected to a heat conduction plate (515), and the heat conduction plates (515) are arranged in a circular array along the central axis of the mounting shell (511).

4. The gas collecting device for a 3D printer based on ABS according to claim 3, characterized in that: A ventilation groove (516) is provided in the wall of the heat conducting plate (515), and the ventilation grooves (516) are arranged in a linear array along the outer wall of the heat conducting plate (515); an air suction groove (513) is provided in the wall of the mounting shell (511), and the air suction grooves (513) are arranged in a circular array along the central axis of the mounting shell (511); an air extraction groove (517) is provided at the bottom of the mounting shell (511), and the air extraction grooves (517) are arranged in a circular array along the central axis of the mounting shell (511); and the bottom of the air supply pipe (53) is fixedly connected to the outer wall of the air collecting shell (52).

5. The gas collecting device for a 3D printer based on ABS according to claim 1, characterized in that: The filter assembly (4) comprises a sealing cover plate (41), the outer wall of the sealing cover plate (41) is fixedly connected to a semicircular shell (43) via a pressing plate (42), and the outer wall of the pressing plate (42) is fixedly connected to the outer wall of the semicircular shell (43), the bottom of the semicircular shell (43) is rotatably connected to a mounting column (45) via a positioning plate (47), and the outer wall of the positioning plate (47) is rotatably connected to the bottom of the mounting column (45), and the outer wall of the mounting column (45) is plugged with a filter cartridge (46).

6. The gas collecting device for a 3D printer based on ABS according to claim 5, characterized in that: The outer wall of the top of the semicircular shell (43) is fixedly connected to the limiting plate (44), the inner wall of the limiting plate (44) is plugged into the top of the mounting column (45), the outer wall of the semicircular shell (43) is pressed and sealed with the outer wall of the circular tube (56), the outer wall of the pressing plate (42) is pressed and sealed with the inner wall of the main semi-shell (51), and the outer wall of the main semi-shell (51) is snap-fitted with the outer wall of the sealing cover plate (41) by means of a buckle.

7. The gas collecting device for a 3D printer based on ABS according to claim 1, characterized in that: The air supply assembly (7) comprises a secondary half shell (71), the top of the secondary half shell (71) is fixedly connected to a connecting shell (72), the outer walls on both sides of the connecting shell (72) are fixedly connected to a corrugated hose (77) via a pump air pipe (73), and the bottom of the pump air pipe (73) is fixedly connected to the outer wall of the corrugated hose (77), and one end of the corrugated hose (77) away from the pump air pipe (73) is fixedly connected to an air blowing ring (78).

8. The gas collecting device for a 3D printer based on ABS according to claim 7, characterized in that: An oblique groove (79) is provided in the wall of the blowing ring (78), and the oblique grooves (79) are arranged in a circular array along the central axis of the blowing ring (78); one end of the pump air pipe (73) away from the corrugated hose (77) is fixedly connected to the outer wall of the connecting shell (72); the outer wall of the bottom of the secondary half shell (71) is fixedly connected to one end of the air delivery conduit (59) away from the air delivery pipe (53); and the outer walls on both sides of the secondary half shell (71) are fixedly connected with blocks (75).

9. The gas collecting device for a 3D printer based on ABS according to claim 8, characterized in that: The adsorption assembly (6) comprises a mounting plate (61), two groups of the mounting plates (61) are provided, and the outer wall of each group of the mounting plates (61) is fixedly connected to a fixed shell (62), two groups of the fixed shells (62) are provided, and the inner wall of each group of the fixed shells (62) is fixedly installed with an activated carbon block (64), a through groove (63) is opened in the wall at the bottom of the fixed shell (62), and the through grooves (63) are arranged in a linear array along the outer wall of the fixed shell (62), the outer wall of the fixed shell (62) is slidably connected to the inner wall of the auxiliary half shell (71), the outer wall of the auxiliary half shell (71) is pressed and sealed with the outer wall of the mounting plate (61), and the outer wall of the mounting plate (61) is clamped with the outer wall of the clamping block (75).

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