Auxiliary equipment with powder rapid recovery function for 3D printer

Abstract

The present invention relates to the field of 3D printing, and in particular to an auxiliary device with a powder rapid recovery function for a 3D printer. The problem to be solved is: when cleaning metal powder, there is blockage, and dust and light impurities will be mixed into the metal powder. Technical solution: An auxiliary device with a powder rapid recovery function for a 3D printer, including a matching frame and a powder absorber, etc.; a plurality of powder absorbers are fixedly connected to the inner side of the matching frame. The present invention uses a plurality of powder absorbers to absorb and clean the metal powder remaining on the surface of the substrate, and then two crushers crush the agglomerated metal powder, and separate large particle impurities and agglomerated metal powder from the metal powder through a filter, and at the same time, the dust and light impurities mixed into the metal powder are cleaned by an electric fan and a second collector, and further through the forward and reverse rotation of the fan, the second powder conveying pipe absorbs the metal powder to prevent the second powder conveying pipe from being blocked, so as to improve the recovery effect of the metal powder.

Description

Technical Field

[0001] The present invention relates to the field of 3D printing, and in particular to an auxiliary device with a powder rapid recovery function for a 3D printer. Background Art

[0002] 3D printing is a kind of rapid prototyping technology, which uses powdered metal materials to produce various objects through models. Existing Chinese patent: (CN110976467B) A metal 3D printer powder recovery device, which uses a powder suction mechanism, a lateral movement mechanism and an exciter to clean and recycle a large amount of metal powder remaining on the substrate after the 3D printer prints, effectively solving the problems of raw material waste and manual cleaning difficulties. However, when the device cleans the metal powder, there is a problem of metal powder agglomeration, and large particles of impurities will be sucked in synchronously, causing the powder suction mechanism to be blocked. At the same time, there is a problem of metal powder mixing with light impurities such as dust. The device cannot remove the dust and light impurities mixed in the metal powder, and requires manual post-processing, which is difficult to process and not worth the cost.

[0003] Therefore, in view of the above problems, an auxiliary device with a powder rapid recovery function for a 3D printer is proposed. Summary of the invention

[0004] In order to overcome the shortcomings of blockage when cleaning metal powder and the mixing of dust and light impurities into the metal powder, the present invention provides an auxiliary device with a powder rapid recovery function for a 3D printer.

[0005] The technical solution of the present invention is: an auxiliary device with a powder rapid recovery function for a 3D printer, comprising a 3D printing device, a collection tank, a wind power component, a driving member, a matching frame, a powder absorber and a leveling frame; a wind power component for absorbing metal powder is installed on the upper left side of the collection tank; two front-to-back symmetrical driving members are fixedly connected to the lower side of the 3D printing device through a connecting frame; the output ends of the two driving members pass through the 3D printing device, and the two output ends of the two driving members are commonly fixedly connected to the matching frame; a plurality of powder absorbers are fixedly connected to the upper side of the matching frame; a plurality of leveling frames are passed through the matching frame, and the plurality of leveling frames are fixedly connected to the matching frame; each leveling frame blocks the upper end of a powder absorber; the left side of the wind power component is connected to the matching frame; it also includes a crushing component and a dust removal component; the left side of the wind power component is connected to a crushing component for crushing agglomerated metal powder; the upper inner side of the collection tank is connected to a dust removal component for cleaning dust in the metal powder; the upper side of the dust removal component is connected to the wind power component.

[0006] As an improvement of the above solution, the powder absorber is a hollow column with a plurality of circular holes on the surface for absorbing metal powder.

[0007] As an improvement on the above scheme, the wind power component includes a first powder conveying pipe, a fan and a second powder conveying pipe; the fan is fixedly connected to the left side of the outer surface of the collection tank through a connecting plate; the second powder conveying pipe is connected between the left side output port of the fan and the middle part of the right side of the matching frame; the upper side output port of the fan is connected to the first powder conveying pipe; the right side of the first powder conveying pipe is connected to the collection tank.

[0008] As an improvement of the above-mentioned scheme, the crushing assembly includes a first connecting rod, a crusher, a first ball valve, a first elastic member and a filter; the first connecting rod is rotatably connected to the right inner side of the second powder conveying pipe through a connecting plate, and the first connecting rod is located on the central axis of the second powder conveying pipe; two left-right symmetrical crushers are fixedly connected to the outer surface of the first connecting rod; the first ball valve is slidingly connected to the left outer surface of the first connecting rod, and a hollow conical cover adapted to the first ball valve is arranged inside the second powder conveying pipe; the first elastic member is fixedly connected to the left inner side of the second powder conveying pipe through a connecting plate, and the left end of the first elastic member is fixedly connected to the first ball valve; the filter is fixedly connected to the left inner side of the second powder conveying pipe, and the filter is located to the right of the first connecting rod.

[0009] As an improvement of the above scheme, the dust removal assembly includes a dust collector, an electric fan, an exporter, a second collector and a second closed T-shaped plate; the dust collector is fixedly connected to the upper inner side of the collecting tank through a connecting plate, the middle part of the dust collector is a hollow column, and the upper and lower sides are both frustum-shaped; the upper side of the dust collector is connected to the first powder conveying pipe; six electric fans are installed on the left inner side of the dust collector; a number of exporters are fixedly connected to the right side of the dust collector from bottom to top, and the several exporters are at the same height as the six electric fans; the second collector is fixedly connected to the right side of the several exporters, and the lower inner side of the second collector is arranged as an inclined surface; a second closed T-shaped plate is slidably arranged on the lower side of the second collector.

[0010] As an improvement of the above scheme, it also includes a detection component, which includes a round rod, a second elastic member, a sliding rod, a hollow column and a detection camera; a round rod is fixedly connected to the right side of the outer surface of the second powder conveying pipe; a second elastic member is fixedly connected to the upper side of the outer surface of the second powder conveying pipe, and the second elastic member is sleeved on the outside of the round rod; a detection camera is installed on the upper side of the outer surface of the round rod through a connecting plate; a sliding rod is fixedly connected to the upper side of the second elastic member through a connecting plate, and the sliding rod is slidably connected to the round rod through the connecting plate; a hollow column is connected to the right side of the outer surface of the second powder conveying pipe; the sliding rod is slidably connected to the hollow column.

[0011] As an improvement of the above scheme, it also includes an anti-backflow component, an air intake component and an anti-blocking component; the anti-backflow component is connected to the right inner side of the first powder conveying pipe; the right side of the first powder conveying pipe is connected to the air intake component; the right side of the second powder conveying pipe is connected to the anti-blocking component; the second powder conveying pipe is aired through the air intake component, and then the particulate impurities blocking the inside of the second powder conveying pipe are cleaned through the anti-blocking component.

[0012] As an improvement of the above-mentioned scheme, the anti-backflow assembly includes a third connecting rod, a third ball valve and a fourth elastic member; the third connecting rod is fixedly connected to the right inner portion of the first powder conveying pipe through a connecting plate; the fourth elastic member is fixedly connected to the right inner portion of the first powder conveying pipe through a connecting plate, and the fourth elastic member is sleeved on the outside of the third connecting rod; the third ball valve is fixedly connected to the left end of the fourth elastic member, and the third ball valve is slidably connected to the third connecting rod; a hollow conical cover matching the third ball valve is arranged inside the first powder conveying pipe.

[0013] As an improvement of the above scheme, the air intake assembly includes a fourth connecting rod, a fifth elastic member, a fourth ball valve and an air intake pipe; the air intake pipe is connected to the right side of the first powder conveying pipe; the fifth elastic member is fixedly connected to the front inner side of the air intake pipe through a connecting block; the fourth connecting rod is fixedly connected to the front inner side of the air intake pipe through a connecting block, and the fifth elastic member is sleeved on the outside of the fourth connecting rod; the fourth ball valve is fixedly connected to the rear side of the fifth elastic member, and the fourth ball valve is slidably connected to the fourth connecting rod; a hollow conical cover matching the fourth ball valve is provided inside the air intake pipe.

[0014] As an improvement of the above-mentioned scheme, the anti-blocking component includes a slag discharge pipe, a second connecting rod, a third elastic member, a second ball valve, a first collector and a first closed T-shaped plate; the second powder conveying pipe is connected to the right side with the slag discharge pipe; the second connecting rod is fixedly connected to the upper inner part of the slag discharge pipe through a connecting plate; the third elastic member is fixedly connected to the upper inner part of the slag discharge pipe through a connecting plate, and the third elastic member is sleeved on the outer side of the second connecting rod; the second ball valve is fixedly connected to the upper side of the third elastic member, and the second ball valve is slidably connected to the second connecting rod; a hollow conical cover adapted to the second ball valve is arranged inside the slag discharge pipe; the first collector is fixedly connected to the lower side of the outer surface of the collecting tank; the lower side of the slag discharge pipe is connected to the first collector; the cross-section of the first collector is set to a trapezoid, and the first closed T-shaped plate is sleeved on the lower side of the first collector.

[0015] Beneficial effects: The present invention uses a plurality of powder absorbers to absorb and clean the metal powder remaining on the surface of the substrate, and then two crushers break the agglomerated metal powder, and separate large-particle impurities and agglomerated metal powder from metal powder through a filter, thereby reducing the workers' later processing work. At the same time, the dust and light impurities mixed in the metal powder are cleaned through an electric fan and a second collector, and the second powder conveying pipe is further used to absorb the metal powder through the forward and reverse rotation of the fan to prevent the second powder conveying pipe from being blocked, thereby improving the recovery effect of the metal powder. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the 3D printer with a powder rapid recovery function of the present invention;

[0017] Figure 2 It is a cross-sectional view of the 3D printer with powder rapid recovery function of the present invention;

[0018] Figure 3 It is a partial three-dimensional structural schematic diagram of a 3D printer with a powder rapid recovery function of the present invention;

[0019] Figure 4 This is an enlarged view of area A of the 3D printer with a powder rapid recovery function of the present invention;

[0020] Figure 5 This is an enlarged view of the crushing component, dust removal component and anti-blocking component area B of the present invention;

[0021] Figure 6 This is an enlarged view of the detection component C area of ​​the present invention;

[0022] Figure 7 It is a front view of the anti-backflow assembly of the present invention;

[0023] Figure 8 It is an enlarged view of the D area of ​​the air intake component of the present invention.

[0024] Names of the numbers in the figure: 1-3D printing equipment, 2-foot, 3-base plate, 201-collection tank, 202-powder discharge knob, 203-first powder delivery pipe, 204-fan, 205-second powder delivery pipe, 206-driving member, 207-matching frame, 208-powder absorber, 209-leveling frame, 301-first connecting rod, 302-crusher, 303-first ball valve, 304-first elastic member, 305-filter, 401-round rod, 402-second elastic member, 403-sliding rod, 404-hollow column, 4 05-detection camera, 501-slag discharge pipe, 502-second connecting rod, 503-third elastic member, 504-second ball valve, 505-first collector, 506-first closed T-shaped plate, 601-third connecting rod, 602-third ball valve, 603-fourth elastic member, 701-impurity remover, 702-electric fan, 703-exporter, 704-second collector, 705-second closed T-shaped plate, 801-fourth connecting rod, 802-fifth elastic member, 803-fourth ball valve, 804-inlet pipe. DETAILED DESCRIPTION

[0025] 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.

[0026] Example 1

[0027] An auxiliary device for a 3D printer with a powder rapid recovery function, such as Figure 1-Figure 8As shown, it includes a 3D printing device, a collection tank 201, a wind power component, a driving member 206, a matching frame 207, a powder absorber 208 and a leveling frame 209; a wind power component is installed on the left upper side of the collection tank 201; two driving members 206 are connected to the lower side of the 3D printing device by bolts of a connecting frame; the output ends of the two driving members 206 pass through the 3D printing device, and the output ends of the two driving members 206 are fixedly connected to the matching frame 207; a plurality of powder absorbers 208 are welded on the upper side of the matching frame 207; a plurality of leveling frames 209 are passed through the matching frame 207, and the plurality of leveling frames 209 are welded to the matching frame 207; each leveling frame 209 blocks the upper end of a powder absorber 208; the left side of the wind power component is connected to the matching frame 207;

[0028] It also includes a crushing component and a dust removal component; the crushing component is connected to the left side of the wind power component; the dust removal component is connected to the upper inner side of the collection tank 201; and the upper side of the dust removal component is connected to the wind power component.

[0029] The driving member 206 is an electric push rod.

[0030] The powder absorber 208 is a hollow column 404 with a plurality of circular holes on its surface for absorbing metal powder.

[0031] It also includes a foot 2 and a base plate 3; there are three foot plates 2 in total; the upper surfaces of the three foot plates 2 are fixedly connected to the collection tank 201; the base plate 3 is installed at the lower inner part of the 3D printing device; a plurality of through holes are opened on the base plate 3, and a powder absorber 208 and a leveling frame 209 are respectively arranged in each through hole.

[0032] The collecting tank 201 further includes a powder discharge knob 202 . The powder discharge knob 202 is installed at the lower side of the collecting tank 201 . The powder discharge knob 202 is manually opened to discharge the metal powder inside the collecting tank 201 .

[0033] The wind power component includes a first powder conveying pipe 203, a fan 204 and a second powder conveying pipe 205; the fan 204 is connected to the left side of the outer surface of the collection tank 201 through a connecting plate bolt; the second powder conveying pipe 205 is connected between the left side output port of the fan 204 and the middle of the right side of the matching frame 207; the upper side output port of the fan 204 is connected to the first powder conveying pipe 203; the right side of the first powder conveying pipe 203 is connected to the collection tank 201.

[0034] A U-shaped bend is arranged on the right side of the first powder conveying pipe 203 .

[0035] The crushing assembly includes a first connecting rod 301, a crusher 302, a first ball valve 303, a first elastic member 304 and a filter 305; the first connecting rod 301 is rotatably connected to the right inner side of the second powder conveying pipe 205 through a connecting plate, and the first connecting rod 301 is located on the central axis of the second powder conveying pipe 205; two left-right symmetrical crushers 302 are fixedly connected to the outer surface of the first connecting rod 301; the first ball valve 303 is slidably connected to the left outer surface of the first connecting rod 301, and a hollow frustum cover adapted to the first ball valve 303 is arranged inside the second powder conveying pipe 205; the first elastic member 304 is fixedly connected to the left inner side of the second powder conveying pipe 205 through a connecting plate, and the left end of the first elastic member 304 is fixedly connected to the first ball valve 303; the filter 305 is fixedly connected to the left inner side of the second powder conveying pipe 205, and the filter 305 is located to the right of the first connecting rod 301.

[0036] The first elastic member 304 is a spring.

[0037] The filter 305 is a metal mesh.

[0038] The dust removal assembly includes a dust remover 701, an electric fan 702, an exporter 703, a second collector 704 and a second closed T-shaped plate 705; the dust remover 701 is welded to the upper inner part of the collecting tank 201 through a connecting plate, the middle part of the dust remover 701 is a hollow column 404, and the upper and lower sides are both truncated; the upper side of the dust remover 701 is connected to the first powder conveying pipe 203; six electric fans 702 are installed on the left inner side of the dust remover 701; a number of exporters 703 are welded from bottom to top on the right side of the dust remover 701, and the several exporters 703 and the six electric fans 702 are at the same height; the second collector 704 is fixedly connected to the right side of the several exporters 703, and the lower inner side of the second collector 704 is set as an inclined surface; a second closed T-shaped plate 705 is slidably set on the lower side of the second collector 704.

[0039] The left side of the exporter 703 is arranged to be inclined.

[0040] It also includes a detection component, which includes a round rod 401, a second elastic member 402, a sliding rod 403, a hollow column 404 and a detection camera 405; the round rod 401 is fixedly connected to the right side of the outer surface of the second powder conveying pipe 205; the second elastic member 402 is fixedly connected to the upper side of the outer surface of the second powder conveying pipe 205, and the second elastic member 402 is sleeved on the outside of the round rod 401; the detection camera 405 is installed on the upper side of the outer surface of the round rod 401 through a connecting plate; the sliding rod 403 is fixedly connected to the upper side of the second elastic member 402 through a connecting plate, and the sliding rod 403 is slidably connected to the round rod 401 through the connecting plate; the hollow column 404 is connected to the right side of the outer surface of the second powder conveying pipe 205; the sliding rod 403 is slidably connected to the hollow column 404.

[0041] The second elastic member 402 is a spring.

[0042] It also includes an anti-backflow component, an air intake component and an anti-blocking component; the anti-backflow component is connected to the right inner side of the first powder conveying pipe 203; the right side of the first powder conveying pipe 203 is connected to the air intake component; the right side of the second powder conveying pipe 205 is connected to the anti-blocking component; the second powder conveying pipe 205 is aired through the air intake component, and then the particulate impurities blocking the inside of the second powder conveying pipe 205 are cleaned through the anti-blocking component.

[0043] The anti-backflow assembly includes a third connecting rod 601, a third ball valve 602 and a fourth elastic member 603; the third connecting rod 601 is fixedly connected to the right inner side of the first powder conveying pipe 203 through a connecting plate; the fourth elastic member 603 is fixedly connected to the right inner side of the first powder conveying pipe 203 through a connecting plate, and the fourth elastic member 603 is sleeved on the outside of the third connecting rod 601; the third ball valve 602 is fixedly connected to the left end of the fourth elastic member 603, and the third ball valve 602 is slidably connected to the third connecting rod 601; a hollow conical cover adapted to the third ball valve 602 is arranged inside the first powder conveying pipe 203.

[0044] The air intake assembly includes a fourth connecting rod 801, a fifth elastic member 802, a fourth ball valve 803 and an air intake pipe 804; the air intake pipe 804 is connected to the right side of the first powder conveying pipe 203; the fifth elastic member 802 is fixedly connected to the inner front part of the air intake pipe 804 through a connecting block; the fourth connecting rod 801 is fixedly connected to the inner front part of the air intake pipe 804 through a connecting block, and the fifth elastic member 802 is sleeved on the outer side of the fourth connecting rod 801; the fourth ball valve 803 is fixedly connected to the rear side of the fifth elastic member 802, and the fourth ball valve 803 is slidably connected to the fourth connecting rod 801; a hollow conical cover adapted to the fourth ball valve 803 is arranged inside the air intake pipe 804.

[0045] The anti-blocking assembly includes a slag discharge pipe 501, a second connecting rod 502, a third elastic member 503, a second ball valve 504, a first collector 505 and a first closed T-shaped plate 506; the right side of the second powder conveying pipe 205 is connected to the slag discharge pipe 501; the second connecting rod 502 is fixedly connected to the upper inner part of the slag discharge pipe 501 through a connecting plate; the third elastic member 503 is fixedly connected to the upper inner part of the slag discharge pipe 501 through a connecting plate, and the third elastic member 503 is sleeved on the outer side of the second connecting rod 502 ; A second ball valve 504 is fixedly connected to the upper side of the third elastic member 503, and the second ball valve 504 is slidably connected to the second connecting rod 502; a hollow frustum cover adapted to the second ball valve 504 is arranged inside the slag discharge pipe 501; a first collector 505 is welded to the lower side of the outer surface of the collecting tank 201; the lower side of the slag discharge pipe 501 is connected to the first collector 505; the cross-section of the first collector 505 is set to be trapezoidal, and a first closed T-shaped plate 506 is sleeved on the lower side of the first collector 505.

[0046] After the 3D printing device is used, that is, after the object is printed on the substrate 3 and the object is manually removed from the substrate 3, a large amount of metal powder will remain on the substrate 3. Before the 3D printing device is used again, the metal powder on the substrate 3 needs to be removed to facilitate printing of the object again and reduce the waste of metal powder.

[0047] After the printing of the article is completed, the two driving members 206 are controlled to start working, and the matching frame 207 is driven to move upward by the two driving members 206, and then the matching frame 207 drives a plurality of powder absorbers 208 and a plurality of leveling frames 209 to move upward, so that the plurality of powder absorbers 208 extend out of the substrate 3, and then the fan 204 is controlled to start working, and the second powder conveying pipe 205 is caused to start inhaling air by the fan 204, that is, the plurality of powder absorbers 208 are caused to start inhaling air by the second powder conveying pipe 205. The hollow column 404 is provided with a plurality of round holes on the surface for absorbing metal powder, and then the metal powder remaining on the matching frame 207 is absorbed by the powder absorber 208, and the metal powder is sucked into the second powder conveying pipe 205. At this time, the internal air pressure of the second powder conveying pipe 205 is lower than the external air pressure. Under the action of negative pressure, the first ball valve 303 slides to the right on the first connecting rod 301 and compresses the first elastic member 304 synchronously. At the same time, in order to prevent the metal powder from being discharged from the slag discharge pipe 501, the first ball valve 303 slides to the right on the first connecting rod 301 and compresses the first elastic member 304 synchronously. Under the action of negative pressure, the second ball valve 504 makes the slag discharge pipe 501 and the second powder conveying pipe 205 disconnected. At the same time, under the action of wind, the two crushers 302 automatically rotate, and then the agglomerated metal powder is crushed by the two crushers 302. When the sucked metal powder passes through the filter 305, the sucked large particles of impurities and the agglomerated metal powder that has not been crushed are blocked and filtered by the filter 305. When the powder passes through the fan 204 and enters the first powder conveying pipe 203, Under the action of negative pressure, the third ball valve 602 slides to the right on the third connecting rod 601 synchronously and compresses the fourth elastic member 603, so that the metal powder passes through the first powder conveying pipe 203 smoothly and enters the interior of the impurity remover 701. Furthermore, when the metal powder enters the impurity remover 701, in order to reduce the wind force input into the impurity remover 701 by the first powder conveying pipe 203 and to weaken the impact of the metal powder on the later dust removal, the wind force is weakened and reduced through the circulating U-shape set on the right side of the first powder conveying pipe 203.

[0048] When the metal powder enters the dust remover 701, the six electric fans 702 are synchronously controlled to start working, and wind force is applied by the six electric fans 702 to remove dust from the metal powder entering the dust remover 701. Since the weight of the metal powder is greater than the light impurities such as dust adhering to the air, the light impurities such as dust are automatically blown to several exporters 703 under the action of wind force, and then the light impurities such as dust automatically pass through the several exporters 703 and enter the second collector 704.

[0049] Furthermore, in order to prevent a small amount of metal powder from being blown toward several exporters 703 under the action of wind, causing metal powder loss, the left side of several exporters 703 is set to be inclined, and the wind force of the six electric fans 702 decreases after reaching the exporters 703, and then the heavy metal powder is temporarily cached by the several exporters 703, while the light dust impurities are blown into the second collector 704, and the metal powder temporarily stored on the left side of the exporter 703 automatically falls to the bottom of the collection tank 201 under its own gravity. When a certain amount of light impurities such as dust are collected in the second collector 704, the second closed T-shaped plate 705 is manually pulled out from the bottom of the second collector 704 to achieve dust removal.

[0050] When the second powder conveying pipe 205 absorbs metal powder, under the action of negative pressure, the slide bar 403 slides downward in the hollow column 404, and the slide bar 403 is limited by the round rod 401 synchronously, and the second elastic member 402 is compressed at the same time. When there are too many large-particle impurities and agglomerated metal powders accumulated in the filter 305, the second powder conveying pipe 205 is blocked, and it is impossible to continue to clean the metal powder on the substrate 3. At this time, the interior of the second powder conveying pipe 205 is in a disconnected state, and the left side of the second powder conveying pipe 205 is in a normal pressure state, so that the slide bar 403 is automatically reset under the action of the elastic force of the second elastic member 402, and is further detected by the detection camera 405. If the detection camera 405 detects that the slide bar 403 is reset, it means that the second powder conveying pipe 205 is blocked and needs to be unblocked.

[0051] When the second powder conveying pipe 205 needs to be unblocked, the fan 204 is reversed so that the fan 204 starts to blow air to the second powder conveying pipe 205, so that the first ball valve 303 is automatically reset, so that the second powder conveying pipe 205 is further divided into two mutually unconnected parts by the first ball valve 303. At the same time, in order to prevent the metal powder inside the collection tank 201 from being sucked up, when the fan 204 is reversed, the third ball valve 602 is synchronously reset, and the first powder conveying pipe 203 is divided into two mutually different parts to ensure that no The metal powder inside the collection tank 201 will be sucked up. At the same time, in order to ensure that the outside air is sucked into the first powder conveying pipe 203, air is then blown into the inside of the second powder conveying pipe 205 to clear the second powder conveying pipe 205. When the fan 204 reverses, the air pressure inside the first powder conveying pipe 203 is reduced, so that the fourth ball valve 803 slides forward on the fourth connecting rod 801 and the fifth elastic member 802 is compressed synchronously, so that the first powder conveying pipe 203 is connected to the outside through the air intake pipe 804 to achieve the air intake effect.

[0052] When the fan 204 reverses to blow air into the second powder conveying pipe 205, the large particles of impurities and agglomerated metal powder accumulated and blocked in the filter 305 are blown away, and simultaneously a secondary crushing is carried out through the crusher 302 on the right. Under the action of air pressure, the second ball valve 504 slides downward on the second connecting rod 502 and compresses the third elastic member 503, so that the large particles of impurities and agglomerated metal powder accumulated and blocked in the filter 305 fall into the slag discharge pipe 501, and then fall from the slag discharge pipe 501 into the first collector 505. When the first powder conveying pipe 203 is unblocked, the fan 204 rotates forward again to continue to absorb the metal powder on the surface of the substrate 3.

[0053] After the large impurities and agglomerated metal powders are collected in the first collector 505, the worker pulls out the first closed T-shaped plate 506 from the bottom of the first collector 505 and processes the large impurities and agglomerated metal powders therein.

[0054] After the metal powder on the surface of the substrate 3 is cleaned, the two driving members 206 are controlled to bring the matching frame 207, a plurality of powder absorbers 208 and a plurality of leveling frames 209 back to their original positions to facilitate the next operation of the 3D printing device.

[0055] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. An auxiliary device for a 3D printer with a powder rapid recovery function, comprising a 3D printing device, a collection tank (201), a wind power component, a driving member (206), a matching frame (207), a powder absorber (208) and a leveling frame (209); a wind power component for absorbing metal powder is installed on the left upper side of the collection tank (201); two driving members (206) are fixedly connected to the lower side of the 3D printing device through a connecting frame; the output ends of the two driving members (206) are connected to the connecting frame; Through the 3D printing device, the output ends of the two driving members (206) are fixedly connected to a matching frame (207); a plurality of powder absorbers (208) are fixedly connected to the upper side of the matching frame (207); a plurality of leveling frames (209) are passed through the matching frame (207), and the plurality of leveling frames (209) are fixedly connected to the matching frame (207); each leveling frame (209) blocks the upper end of a powder absorber (208); the left side of the wind power component is connected to the matching frame (207); the characteristics are: It also includes a crushing component and a dust removal component; the left side of the wind power component is connected to a crushing component for crushing agglomerated metal powder; the upper inner side of the collection tank (201) is connected to a dust removal component for cleaning dust in the metal powder; the upper side of the dust removal component is connected to the wind power component; The wind power component comprises a first powder conveying pipe (203), a fan (204) and a second powder conveying pipe (205); the fan (204) is fixedly connected to the left side of the outer surface of the collection tank (201) via a connecting plate; the second powder conveying pipe (205) is connected between the left side output port of the fan (204) and the middle part of the right side of the matching frame (207); the upper side output port of the fan (204) is connected to the first powder conveying pipe (203); the right side of the first powder conveying pipe (203) is connected to the collection tank (201); The crushing assembly comprises a first connecting rod (301), a crusher (302), a first ball valve (303), a first elastic member (304) and a filter (305); the first connecting rod (301) is rotatably connected to the right inner side of the second powder conveying pipe (205) through a connecting plate, and the first connecting rod (301) is located on the central axis of the second powder conveying pipe (205); two left-right symmetrical crushers (302) are fixedly connected to the outer surface of the first connecting rod (301); the outer surface of the first connecting rod (301) A first ball valve (303) is slidably connected to the left side of the surface, and a hollow truncated cone cover adapted to the first ball valve (303) is arranged inside the second powder conveying pipe (205); a first elastic member (304) is fixedly connected to the left inner side of the second powder conveying pipe (205) through a connecting plate, and the left end of the first elastic member (304) is fixedly connected to the first ball valve (303); a filter (305) is fixedly connected to the left inner side of the second powder conveying pipe (205), and the filter (305) is located to the right of the first connecting rod (301); The dust removal assembly comprises a dust remover (701), an electric fan (702), an outlet (703), a second collector (704) and a second closed T-shaped plate (705); the dust remover (701) is fixedly connected to the upper inner part of the collecting tank (201) via a connecting plate; the middle part of the dust remover (701) is a hollow column (404), and the upper and lower sides are both truncated; the upper side of the dust remover (701) is connected to the first powder conveying pipe (203); the left inner part of the dust remover (701) is provided with a dust remover (701) Six electric fans (702) are installed; a plurality of exporters (703) are fixedly connected from bottom to top on the right side of the impurity remover (701), and the plurality of exporters (703) and the six electric fans (702) are at the same height; a second collector (704) is fixedly connected on the right side of the plurality of exporters (703), and the lower side of the second collector (704) is provided with an inclined surface; a second sealed T-shaped plate (705) is slidably provided on the lower side of the second collector (704).

2. The auxiliary device with powder rapid recovery function for a 3D printer according to claim 1, characterized in that: The powder absorber (208) is a hollow column (404) with a plurality of circular holes on its surface for absorbing metal powder.

3. The auxiliary device with powder rapid recovery function for a 3D printer according to claim 1, characterized in that: The invention also includes a detection component, which includes a round rod (401), a second elastic member (402), a sliding rod (403), a hollow column (404) and a detection camera (405); the round rod (401) is fixedly connected to the right side of the outer surface of the second powder conveying pipe (205); the second elastic member (402) is fixedly connected to the upper side of the outer surface of the second powder conveying pipe (205), and the second elastic member (402) is sleeved on the outer side of the round rod (401); the detection camera (405) is installed on the upper side of the outer surface of the round rod (401) through a connecting plate; the sliding rod (403) is fixedly connected to the upper side of the second elastic member (402) through a connecting plate, and the sliding rod (403) is slidably connected to the round rod (401) through the connecting plate; the hollow column (404) is connected to the right side of the outer surface of the second powder conveying pipe (205); the sliding rod (403) is slidably connected to the hollow column (404).

4. The auxiliary device with powder rapid recovery function for a 3D printer according to claim 1, characterized in that: It also includes an anti-backflow component, an air intake component and an anti-blocking component; the anti-backflow component is connected to the right inner side of the first powder conveying pipe (203); the right side of the first powder conveying pipe (203) is connected to the air intake component; the right side of the second powder conveying pipe (205) is connected to the anti-blocking component; the second powder conveying pipe (205) is supplied with air through the air intake component, and then the particle impurities blocking the inside of the second powder conveying pipe (205) are cleaned through the anti-blocking component.

5. The auxiliary device with powder rapid recovery function for a 3D printer according to claim 4, characterized in that: The anti-backflow component comprises a third connecting rod (601), a third ball valve (602) and a fourth elastic member (603); the third connecting rod (601) is fixedly connected to the right inner side of the first powder conveying pipe (203) via a connecting plate; the fourth elastic member (603) is fixedly connected to the right inner side of the first powder conveying pipe (203) via a connecting plate, and the fourth elastic member (603) is sleeved on the outside of the third connecting rod (601); the third ball valve (602) is fixedly connected to the left end of the fourth elastic member (603), and the third ball valve (602) is slidably connected to the third connecting rod (601); a hollow frustum cover adapted to the third ball valve (602) is arranged inside the first powder conveying pipe (203).

6. The auxiliary device with powder rapid recovery function for a 3D printer according to claim 4, characterized in that: The air intake assembly comprises a fourth connecting rod (801), a fifth elastic member (802), a fourth ball valve (803) and an air intake pipe (804); the right side of the first powder conveying pipe (203) is connected to the air intake pipe (804); the inner front part of the air intake pipe (804) is fixedly connected to the fifth elastic member (802) via a connecting block; the inner front part of the air intake pipe (804) is fixedly connected to the fourth connecting rod (801) via a connecting block, and the fifth elastic member (802) is sleeved on the outer side of the fourth connecting rod (801); the rear side of the fifth elastic member (802) is fixedly connected to the fourth ball valve (803), and the fourth ball valve (803) is slidably connected to the fourth connecting rod (801); a hollow frustum cover adapted to the fourth ball valve (803) is arranged inside the air intake pipe (804).

7. The auxiliary device with powder rapid recovery function for a 3D printer according to claim 6, characterized in that: The anti-blocking component comprises a slag discharge pipe (501), a second connecting rod (502), a third elastic member (503), a second ball valve (504), a first collector (505) and a first closed T-shaped plate (506); the right side of the second powder conveying pipe (205) is connected to the slag discharge pipe (501); the upper inner part of the slag discharge pipe (501) is fixedly connected to the second connecting rod (502) via a connecting plate; the upper inner part of the slag discharge pipe (501) is fixedly connected to the third elastic member (503) via a connecting plate, and the third elastic member (503) is sleeved on the outer side of the second connecting rod (502). side; a second ball valve (504) is fixedly connected to the upper side of the third elastic member (503), and the second ball valve (504) is slidably connected to the second connecting rod (502); a hollow truncated cone cover adapted to the second ball valve (504) is arranged inside the slag discharge pipe (501); a first collector (505) is fixedly connected to the lower side of the outer surface of the collecting tank (201); the lower side of the slag discharge pipe (501) is connected to the first collector (505); the cross-section of the first collector (505) is set to be trapezoidal, and a first closed T-shaped plate (506) is sleeved on the lower side of the first collector (505).

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