CN109550958B - Powder return pipeline device of metal 3D printing equipment - Google Patents
Powder return pipeline device of metal 3D printing equipment Download PDFInfo
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- CN109550958B CN109550958B CN201910046394.7A CN201910046394A CN109550958B CN 109550958 B CN109550958 B CN 109550958B CN 201910046394 A CN201910046394 A CN 201910046394A CN 109550958 B CN109550958 B CN 109550958B
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- placing table
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- noise reduction
- air
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- 239000000843 powder Substances 0.000 title claims abstract description 74
- 238000010146 3D printing Methods 0.000 title claims abstract description 34
- 239000002184 metal Substances 0.000 title claims abstract description 33
- 230000009467 reduction Effects 0.000 claims abstract description 40
- 239000000428 dust Substances 0.000 claims abstract description 30
- 238000007664 blowing Methods 0.000 claims description 29
- 238000007789 sealing Methods 0.000 claims description 28
- 230000005540 biological transmission Effects 0.000 claims description 6
- 239000011229 interlayer Substances 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 229920000742 Cotton Polymers 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 2
- 239000000741 silica gel Substances 0.000 claims description 2
- 229910002027 silica gel Inorganic materials 0.000 claims description 2
- 238000007639 printing Methods 0.000 description 8
- 239000010410 layer Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000036541 health Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000012255 powdered metal Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/70—Recycling
- B22F10/73—Recycling of powder
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
- B22F12/22—Driving means
- B22F12/224—Driving means for motion along a direction within the plane of a layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
- B22F12/30—Platforms or substrates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
- B22F12/70—Gas flow means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/20—Direct sintering or melting
- B22F10/28—Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
- B22F12/90—Means for process control, e.g. cameras or sensors
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Mechanical Engineering (AREA)
Abstract
A powder return pipeline device of a metal 3D printing device comprises a support column, a support platen, a shell, a first noise reduction box, a first collection box, a second collection box and an air draft device, wherein the first collection box, the second collection box and the air draft device are arranged on a placing plate; the supporting column and the shell are arranged on the supporting bedplate; a first threaded rod, a first sliding part, a second sliding part, an air suction cover, a 3D printer, a placing table, a second noise reduction box, a fastening bolt and a fixing block are arranged in the shell; the air suction cover is connected with the input end of the air suction device through a pipeline; the placing table is of a hollow structure, the upper end face of the placing table is uniformly provided with through holes, and the placing table is connected with the shell; a discharge hole is formed at the lower end of the inclined plate; the discharge hole is connected with the first through hole; the powder sequentially passes through the through hole, the discharge hole, the first through hole and the second through hole and falls into the first collecting box; the powder inlet of the second collecting box is connected with the output port of the air draft device. According to the invention, when the metal 3D printing equipment prints, the residual powder can be collected, and the dust in the drifting noise shell can be collected.
Description
Technical Field
The invention relates to the technical field of metal 3D printing equipment, in particular to a powder return pipeline device of metal 3D printing equipment.
Background
A 3D printer, also known as a three-dimensional printer (3DP), is a machine that is an additive manufacturing technique, i.e., a rapid prototyping technique, which is based on a digital model file, and manufactures a three-dimensional object by printing a layer of adhesive material on a layer by layer using an adhesive material such as a special wax material, powdered metal, or plastic. State of the art three-dimensional printers are used to manufacture products. Techniques for building objects in a layer-by-layer printing manner. The principle of the 3D printer is that data and raw materials are put into the 3D printer, and the machine can build the product layer by layer according to the program.
3D printing is typically achieved using digital technology material printers. The method is often used for manufacturing models in the fields of mold manufacturing, industrial design and the like; later gradually used for direct manufacturing of some products; there are already components printed using this technique. The technology has applications in jewelry, footwear, industrial design, construction, engineering and construction (AEC), automotive, aerospace, dental and medical industries, education, geographic information systems, civil engineering, firearms, and other fields.
In the printing of a metal 3D printing device, after each layer of powder is sintered by laser, the residual powder needs to be recovered by using a powder scraping gas; after printing is finished, the redundant powder also needs to be recycled; when powder is recovered, the equipment is normally closed, a door of the metal 3D printing equipment is opened to take out powder in the equipment, and residual powder in a front pipeline and a rear-wall pipeline in the equipment is collected; the equipment is shut down, so that the production efficiency is greatly delayed; and the dust of metal 3D printing apparatus when printing is kicked out from the equipment and is mixed with the air and is inhaled the health by the operator, can harm people's health.
In order to solve the problem, the application provides a metal 3D printing apparatus returns whitewashed pipe device.
Disclosure of Invention
Objects of the invention
In order to solve the technical problems in the background art, the invention provides the powder return pipeline device of the metal 3D printing equipment, which is convenient for collecting the residual powder when the metal 3D printing equipment is used for printing without stopping the machine and can collect the dust in the drifting noise shell.
(II) technical scheme
In order to solve the problems, the invention provides a powder return pipeline device of metal 3D printing equipment, which comprises a support column, a support platen, a shell, a placing plate, a first collecting box, a sealing cover, a second collecting box, an air draft device and a first noise reduction box, wherein the support column is arranged on the support platen;
a second through hole is formed in the supporting bedplate; a support column is arranged on the lower end surface of the support bedplate; the upper end surface of the supporting bedplate is connected with the lower end surface of the shell; the first noise reduction box is arranged on the shell, and a first driving device is arranged in the first noise reduction box; the lower end surface of the shell is provided with a first through hole and a second threaded hole; a first threaded rod, a first sliding part, a second sliding part, an air suction cover, a 3D printer, a placing table, a second noise reduction box, a fastening bolt and a fixing block are arranged in the shell;
the first threaded rod is rotatably arranged in the shell and is in transmission connection with a first driving device; a first threaded hole is formed in the first sliding piece; the first threaded rod is screwed into the first threaded hole of the first sliding piece; the first sliding part is connected with the second sliding part; the second sliding piece is connected with the inner wall of the shell in a sliding manner; the air suction cover is arranged on the lower end face of the first sliding part and is connected with the input end of the air draft device through a pipeline; the 3D printer is positioned below the first threaded rod;
the second noise reduction box is arranged at the bottom of the shell and is positioned at one side close to the placing table; a second driving device is arranged in the second noise reduction box; an output shaft of the second driving device penetrates out of the second noise reduction box; the placing table is of a hollow structure with an opening at the lower end, and the lower end of the placing table with the opening faces the bottom of the shell; the upper end surface of the placing table is divided into a complete area at two sides and a collecting area in the middle, and through holes are uniformly formed in the end surface of the collecting area on the placing table; a guide rod, an inclined plate, a third sliding part, a second threaded rod, bristles and a fourth sliding part are arranged in the placing table; the second threaded rod is rotatably installed in the placing table, and one end, penetrating out of the placing table, of the second threaded rod is in transmission connection with a second driving device; a fifth threaded hole is formed in the fourth sliding piece; the second threaded rod is screwed into the fifth threaded hole; bristles are uniformly arranged at one end, facing the through hole, of the fourth sliding piece; the fourth sliding part is connected with the third sliding part; the third sliding piece is slidably connected with a guide rod arranged in the placing table; the guide rod is arranged in parallel with the second threaded rod; the inclined plate is arranged along the inner wall of the placing table in an inclined way towards the bottom of the shell, and the highest end of the inclined plate is connected with the inner wall of the placing table; the inclined plate is arranged at the bottom of the placing table and forms an inverted conical structure; the bottom of the inverted cone structure is provided with a discharge hole; the discharge hole is connected with the first through hole through a pipeline; the residual powder on the placing table falls into the placing table from the through hole, and the powder sequentially passes through the discharge hole, the first through hole and the second through hole;
the fixed block is arranged on the outer wall of the lower end of the placing table; a third threaded hole is formed in the fixing block; the fastening bolt is screwed into the third threaded hole on the fixed block; the fastening bolt is screwed into the second threaded hole in a threaded manner so as to install the placing table at the bottom of the shell;
the placing plate is connected with the supporting column; the first collecting box, the second collecting box and the air draft device are arranged on the upper end face of the placing plate; an opening is formed in the upper end of the first collecting box, and a sealing cover is arranged at the opening of the first collecting box; the sealing cover is provided with a first collecting port and an air hole; the first collection port is connected with the second through hole; the second collecting box is provided with an air outlet port and a powder inlet; a first filter screen is arranged in the air outlet port; the powder inlet is connected with the output port of the air draft device.
Preferably, the length of the bristles is not less than the distance from the upper end face of the fourth sliding piece to the upper end face of the placing table; the bristles are located at the lower side of the complete area of the placing table when not in use, and one end of the bristles facing the placing table is in contact with the placing table.
Preferably, the first noise reduction box and the second noise reduction box have the same structure; the first noise reduction box comprises a noise reduction plate and a sound insulation plate; the sound insulation board is positioned at one side close to the first driving device; a hollow interlayer is arranged between the sound-absorbing plate and the sound-insulating plate; the interlayer is filled with sound-absorbing cotton.
Preferably, a dust concentration detector is arranged in the housing.
Preferably, the outer wall of the shell is provided with a first blowing device and a second blowing device; the air outlets of the first air blowing device and the second air blowing device are located in the shell, and the first air blowing device and the second air blowing device are symmetrically arranged by taking the placing table as a center.
Preferably, a vibrator is arranged in the placing table; the vibrator is arranged on the lower end surface of the inclined plate.
Preferably, a sealing door is arranged on the shell.
Preferably, the sealing door is connected with the shell in a sealing way through a high-temperature-resistant silica gel sealing ring; the sealing door is provided with a transparent window.
Preferably, the shell is provided with a control panel; the control panel is provided with a control button and a display screen; a microcontroller is arranged in the control panel; the microcontroller is in communication connection with the air draft device, the first driving device, the dust concentration detector, the second driving device, the vibrator, the first air blowing device and the second air blowing device.
The technical scheme of the invention has the following beneficial technical effects:
according to the invention, a 3D printer is used for printing products on a placing table, residual redundant powder drops to a collecting area on the upper end surface of the placing table when the D printer prints, the powder drops to an inclined plate in the placing table from a through hole, and the powder drops to a first collecting box from a discharge hole, a first through hole, a second through hole and a first collecting port in sequence along the inclined plate which is obliquely arranged; the redundant powder is collected in the first collection box; electrifying an electric appliance in the device, and controlling a second driving device to drive a second threaded rod to rotate; thereby driving the fourth sliding part to reciprocate on the second threaded rod, and driving the brush hair to dredge the through hole, so as to avoid powder from blocking the through hole; when the vibrator installed on the inclined plate needs to be used, the vibrator is turned on to shake and clean the powder on the inclined plate, and the powder on the inclined plate is prevented from remaining; opening the air draft device and the first driving device; the first driving device drives the first threaded rod to rotate, so that the first sliding piece is driven to circularly reciprocate on the first threaded rod; the air draft device sucks the dust in the shell from the cover opening of the air suction cover, and the dust is conveyed to the second collection box from the output end of the air draft device through a pipeline and collected; be equipped with first blast apparatus and second blast apparatus and blow in to the shell, blow up remaining powder in the shell and collect by updraft ventilator with the powder that mixes in the air, can collect remaining powder when big seal 3D printer through this device, need not shut down moreover and can collect the powder of mixing with the air in the shell, avoid the powder to fly away to cause the influence to people's health in the outside air of shell.
According to the invention, the sealing door is hermetically connected with the shell, so that a gap between the sealing door and the shell is avoided, and dust in the shell is mixed with air outside the shell; the transparent window can be used for conveniently observing the condition in the shell; the intelligent control of the air draft device, the first driving device, the dust concentration detector, the second driving device and the vibrator is more convenient through the arranged microcontroller; the dust concentration in the shell is set to the preset value by setting a set value of the dust concentration detector, and the dust concentration detector sends a detected dust concentration signal to the microcontroller; the microcontroller controls the first driving device and the air draft device to operate so as to collect the dust mixed in the air inside the shell.
Drawings
Fig. 1 is a schematic structural diagram of a powder return pipeline device of a metal 3D printing apparatus according to the present invention.
Fig. 2 is a partially enlarged structural schematic diagram of a position a in a powder return pipeline device of a metal 3D printing apparatus according to the present invention.
Fig. 3 is a partially enlarged structural schematic diagram of a position B in a powder return pipeline device of a metal 3D printing apparatus according to the present invention.
Fig. 4 is a schematic top view of a placing table in a powder return pipeline device of a metal 3D printing apparatus according to the present invention.
Fig. 5 is a front view of a powder return pipeline device of a metal 3D printing apparatus according to the present invention.
Reference numerals:
1. a support pillar; 2. a support platen; 3. a housing; 4. a first blowing device; 5. placing the plate; 6. a first collection tank; 7. a sealing cover; 8. a first collection port; 9. a second collection tank; 10. an air outlet port; 11. a powder inlet; 12. an air draft device; 13. a dust concentration detector; 14. a first noise reduction box; 15. a first driving device; 16. a first threaded rod; 17. a first slider; 18. a second slider; 19. an air intake cover; 20. a 3D printer; 21. a placing table; 22. a second noise reduction box; 23. a second driving device; 24. a guide bar; 25. a vibrator; 26. an inclined plate; 27. tightening the bolt; 28. a fixed block; 29. a threaded hole; 30. a finishing zone; 31. a collection region; 32. a through hole; 33. a sealing door; 34. a transparent window; 35. a control panel; 36. a third slider; 37. a second threaded rod; 38. brushing; 39. a fourth slider; 40. a discharge port; 41. a first through hole; 42. a second through hole; 43. and a second blowing device.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
Fig. 1 is a schematic structural diagram of a powder return pipeline device of a metal 3D printing apparatus according to the present invention.
Fig. 2 is a partially enlarged structural schematic diagram of a position a in a powder return pipeline device of a metal 3D printing apparatus according to the present invention.
Fig. 3 is a partially enlarged structural schematic diagram of a position B in a powder return pipeline device of a metal 3D printing apparatus according to the present invention.
Fig. 4 is a schematic top view of a placing table in a powder return pipeline device of a metal 3D printing apparatus according to the present invention.
As shown in fig. 1-4, the powder return pipeline device of the metal 3D printing equipment provided by the invention comprises a supporting column 1, a supporting bedplate 2, a shell 3, a placing plate 5, a first collecting box 6, a sealing cover 7, a second collecting box 9, an air draft device 12 and a first noise reduction box 14;
the support bedplate 2 is provided with a second through hole 42; the lower end surface of the supporting bedplate 2 is provided with a supporting column 1 for supporting the supporting bedplate 2; the upper end surface of the supporting bedplate 2 is connected with the lower end surface of the shell 3;
the first noise reduction box 14 is arranged on the shell 3, and a first driving device 15 is arranged in the first noise reduction box 14; the first noise reduction box 14 is used for eliminating noise generated by the first driving device 15 and avoiding noise pollution; the lower end surface of the shell 3 is provided with a first through hole 41 and a second threaded hole; a first threaded rod 16, a first sliding part 17, a second sliding part 18, an air suction hood 19, a 3D printer 20, a placing table 21, a second noise reduction box 22, a fastening bolt 27 and a fixing block 28 are arranged in the shell 3;
the first threaded rod 16 is rotatably arranged in the shell 3 and is in transmission connection with the first driving device 15; a first threaded hole is formed in the first sliding part 17; the first threaded rod 16 is screwed into the first threaded hole of the first slider 17; the first slide 17 is connected to the second slide 18; the second slide member 18 is slidably connected to the inner wall of the housing 3; the air suction cover 19 is arranged on the lower end face of the first sliding part 17, the air suction cover 19 is connected with the input end of the air draft device 12 through a pipeline, and dust in the shell 3 enters the second collection box 9 from the air suction cover 19 under the action of the air draft device 12; the air draft device 12 is an exhaust fan; the 3D printer 20 is located below the first threaded rod 16, and the 3D printer 20 is located above the placing table 21;
the second noise reduction box 22 is installed at the bottom of the housing 3, and the second noise reduction box 22 is located at a side close to the placing table 21; a second driving device 23 is arranged in the second noise reduction box 22, and the second noise reduction box 22 is used for eliminating noise generated by the second driving device 23 so as to avoid noise pollution; an output shaft of the second driving device 23 penetrates out of the second noise reduction box 22; the placing table 21 is a hollow structure with an opening at the lower end, and the lower end of the placing table 21 with the opening faces the bottom of the shell 3; the upper end surface of the placing table 21 is divided into a complete area 30 at two sides and a collecting area 31 in the middle, and through holes 32 are uniformly arranged on the end surface of the collecting area 31 on the placing table 21; in operation, the 3D printer 20 prints a product on the upper end surface of the placing table 21; the placing table 21 is internally provided with a guide rod 24, an inclined plate 26, a third sliding part 36, a second threaded rod 37, bristles 38 and a fourth sliding part 39; the second threaded rod 37 is rotatably installed in the placing table 21, and one end of the second threaded rod 37 penetrating through the placing table 21 is in transmission connection with the second driving device 23; a fifth threaded hole is formed in the fourth sliding member 39; the second threaded rod 37 is screwed into the fifth threaded hole; the fourth sliding member 39 uniformly mounts the brush staples 38 toward one end of the through hole 32; the fourth slider 39 is connected to the third slider 36; the third slider 36 is slidably connected to the guide bar 24 installed in the placement table 21; the guide rod 24 is arranged in parallel with the second threaded rod 37; the inclined plate 26 is arranged along the inner wall of the placing table 21 and inclined towards the bottom of the shell 3, and the highest end of the inclined plate 26 is connected with the inner wall of the placing table 21; the inclined plate 26 forms the bottom of the inverted cone structure in the placing table 21; the bottom of the inverted cone structure is provided with a discharge hole 40; the discharge port 40 is connected with the first through hole 41 through a pipeline; the residual powder on the placing table 21 falls into the placing table 21 from the through hole 32, and the powder sequentially passes through the discharge hole 40, the first through hole 41 and the second through hole 42;
the fixed block 28 is arranged on the outer wall of the lower end of the placing table 21; a third threaded hole is formed in the fixing block 28; the fastening bolt 27 is screwed into the third threaded hole on the fixed block 28; and the fastening bolt 27 is screwed into the second threaded hole for mounting the placing table 21 at the bottom of the housing 3;
the placing plate 5 is connected with the supporting column 1; the first collecting box 6, the second collecting box 9 and the air draft device 12 are arranged on the upper end surface of the placing plate 5; an opening is formed in the upper end of the first collecting box 6, and a sealing cover 7 is arranged at the opening of the first collecting box 6; the sealing cover 7 is provided with a first collecting port 8 and an air hole; the first collection port 8 is connected with the second through hole 42; the top of the second collecting box 9 is provided with an air outlet port 10 and a powder inlet port 11; a drawing drawer is arranged in the second collecting box 9; the drawing drawer is hermetically arranged in the second collecting box 9 and is in sliding connection with the second collecting box 9; a first filter screen is arranged in the air outlet port 10; the powder inlet 11 is connected with the output port of the air draft device 12.
In an alternative embodiment, the length of the bristles 38 is not less than the distance of the upper end surface of the fourth slider 39 from the upper end surface of the placement table 21; the brush hair 38 is located at the lower side of the complete area 30 of the placing table 21 when not in use, and one end of the brush hair 38 facing the placing table 21 is in contact with the placing table 21, so that the influence on the printed product caused by the brush hair 38 penetrating out of the through hole 32 to the upper end of the placing table 21 is avoided.
In an alternative embodiment, the first noise reduction box 14 and the second noise reduction box 22 are identical in construction; the first noise reduction box 14 includes an acoustic panel and an acoustic baffle; the baffle is located on the side close to the first driving means 15; a hollow interlayer is arranged between the sound-absorbing plate and the sound-insulating plate; the interlayer is filled with sound-absorbing cotton.
In an alternative embodiment, a dust concentration detector 13 is provided within the housing 3.
In an alternative embodiment, the first blowing device 4 and the second blowing device 43 are arranged on the outer wall of the housing 3; the air outlets of the first air blowing device 4 and the second air blowing device 43 are positioned inside the shell 3 and used for blowing air into the shell 3 to blow up dust in the shell 3; the first blowing device 4 and the second blowing device 43 are symmetrically arranged with the placing table 21 as a center; air filtering devices are installed at air inlet ports of the first blowing device 4 and the second blowing device 43, so that external impurities are prevented from being blown into the shell 3 along with air.
In an alternative embodiment, a vibrator 25 is provided in the placing table 21; the vibrator 25 is mounted on a lower end surface of the inclined plate 26.
In the invention, a 3D printer 20 is used for printing products on a placing table 21, residual redundant powder drops to a collecting area 31 on the upper end surface of the placing table 21 when the 3D printer 20 prints, the powder drops to an inclined plate 26 in the placing table 21 from a through hole 32, and the powder drops to a first collecting box 6 from a discharge hole 40, a first through hole 41, a second through hole 42 and a first collecting port 8 in sequence along the inclined plate 26 which is obliquely arranged; the excess powder is collected in a first collection bin 6; electrifying the electric appliance in the device, and controlling the second driving device 23 to drive the second threaded rod 37 to rotate; thereby driving the fourth sliding part 39 to reciprocate on the second threaded rod 37 and driving the brush bristles 38 to dredge the through hole 32, so as to prevent the powder from blocking the through hole 32; when the vibrator 25 arranged on the inclined plate 26 needs to be used, the vibrator is turned on to shake and clean the powder on the inclined plate 26, and powder residue on the inclined plate 26 is avoided; turning on the air extraction device 12 and the first drive device 15; the first driving device 15 drives the first threaded rod 16 to rotate, so as to drive the first sliding part 17 to circularly reciprocate on the first threaded rod 16; the air draft device 12 sucks the dust in the shell 3 from the cover opening of the air draft cover 19, and the dust is conveyed to the second collection box 9 from the output end of the air draft device 12 through a pipeline and collected; be equipped with first blast apparatus 4 and second blast apparatus 43 and blow in to shell 3, blow up remaining powder in the shell 3 and collect the powder that will mix in the air by updraft ventilator 12, can collect 3D printer 20 remaining powder when big seal through this device, need not shut down moreover and can collect the powder of mixing with the air in the shell 3, avoid the powder to fly away and cause the influence to people's health in the outside air of shell 3.
Fig. 5 is a front view of a powder return pipeline device of a metal 3D printing apparatus according to the present invention.
As shown in fig. 5, the housing 3 is further provided with a sealing door 33 and a control panel 35.
In an alternative embodiment, the sealing door 33 is hermetically connected to the housing 3 by a high temperature resistant silicone gasket; the sealing door 33 is provided with a transparent window 34.
In an alternative embodiment, the control panel 35 is provided with control buttons and a display screen; a microcontroller is arranged in the control panel 35; the microcontroller is in communication connection with the air draft device 12, the first driving device 15, the dust concentration detector 13, the second driving device 23, the vibrator 25, the first air blowing device 4 and the second air blowing device 43, wherein the first driving device 15 and the second driving device 23 are frequency conversion motors.
It should be noted that the sealing door 33 is hermetically connected with the housing 3, so as to avoid a gap between the sealing door 33 and the housing 3, so that the dust in the housing 3 is mixed with the air outside the housing 3; the condition in the shell 3 can be conveniently observed through the transparent window 34; the air draft device 12, the first driving device 15, the dust concentration detector 13, the second driving device 23 and the vibrator 25 are intelligently controlled more conveniently through the microcontroller; by setting a set value of the dust concentration detector 13, the dust concentration in the housing 3 reaches a set value, and the dust concentration detector 13 sends a detected dust concentration signal to the microcontroller; the microcontroller controls the operation of the first drive means 15 and the air extraction means 12 to collect the dust which is entrained in the air inside the housing 3.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (9)
1. The powder return pipeline device of the metal 3D printing equipment is characterized by comprising a supporting column (1), a supporting bedplate (2), a shell (3), a placing plate (5), a first collecting box (6), a sealing cover (7), a second collecting box (9), an air draft device (12) and a first noise reduction box (14);
a second through hole (42) is arranged on the supporting bedplate (2); a support pillar (1) is arranged on the lower end surface of the support bedplate (2); the upper end surface of the supporting bedplate (2) is connected with the lower end surface of the shell (3); the first noise reduction box (14) is arranged on the shell (3), and a first driving device (15) is arranged in the first noise reduction box (14); the lower end surface of the shell (3) is provided with a first through hole (41) and a second threaded hole; a first threaded rod (16), a first sliding piece (17), a second sliding piece (18), an air suction cover (19), a 3D printer (20), a placing table (21), a second noise reduction box (22), a fastening bolt (27) and a fixing block (28) are arranged in the shell (3);
the first threaded rod (16) is rotatably arranged in the shell (3) and is in transmission connection with the first driving device (15); a first threaded hole is formed in the first sliding part (17); the first threaded rod (16) is screwed into the first threaded hole of the first sliding piece (17); the first sliding part (17) is connected with the second sliding part (18); the second sliding part (18) is connected with the inner wall of the shell (3) in a sliding way; the air suction cover (19) is arranged on the lower end face of the first sliding part (17), and the air suction cover (19) is connected with the input end of the air draft device (12) through a pipeline; the 3D printer (20) is positioned below the first threaded rod (16);
the second noise reduction box (22) is arranged at the bottom of the shell (3), and the second noise reduction box (22) is positioned at one side close to the placing table (21); a second driving device (23) is arranged in the second noise reduction box (22); an output shaft of the second driving device (23) penetrates out of the second noise reduction box (22); the placing table (21) is of a hollow structure with an opening at the lower end, and the lower end of the placing table (21) with the opening faces the bottom of the shell (3); the upper end surface of the placing table (21) is divided into a complete area (30) at two sides and a collecting area (31) in the middle, and through holes (32) are uniformly formed in the end surface of the collecting area (31) on the placing table (21); a guide rod (24), an inclined plate (26), a third sliding piece (36), a second threaded rod (37), bristles (38) and a fourth sliding piece (39) are arranged in the placing table (21); the second threaded rod (37) is rotatably arranged in the placing table (21), and one end of the second threaded rod (37) penetrating through the placing table (21) is in transmission connection with the second driving device (23); a fifth threaded hole is formed in the fourth sliding piece (39); the second threaded rod (37) is screwed into the fifth threaded hole; one end of the fourth sliding piece (39) facing the through hole (32) is uniformly provided with bristles (38); the fourth sliding piece (39) is connected with the third sliding piece (36); a third sliding part (36) is connected with a guide rod (24) arranged in the placing table (21) in a sliding way; the guide rod (24) is arranged in parallel with the second threaded rod (37); the inclined plate (26) is obliquely arranged towards the bottom of the shell (3) along the inner wall of the placing table (21), and the highest end of the inclined plate (26) is connected with the inner wall of the placing table (21); the inclined plate (26) is arranged at the bottom of the placing table (21) in a surrounding mode to form an inverted conical structure; a discharge hole (40) is formed at the bottom of the inverted cone structure; the discharge hole (40) is connected with the first through hole (41) through a pipeline; the residual powder on the placing table (21) falls into the placing table (21) from the through hole (32), and the powder sequentially passes through the discharge hole (40), the first through hole (41) and the second through hole (42);
the fixed block (28) is arranged on the outer wall of the lower end of the placing table (21); a third threaded hole is formed in the fixing block (28); the fastening bolt (27) is screwed into a third threaded hole on the fixing block (28); and the fastening bolt (27) is screwed into the second threaded hole for mounting the placing table (21) at the bottom of the shell (3);
the placing plate (5) is connected with the supporting column (1); the first collecting box (6), the second collecting box (9) and the air draft device (12) are arranged on the upper end face of the placing plate (5); an opening is formed in the upper end of the first collecting box (6), and a sealing cover (7) is arranged at the opening of the first collecting box (6); the sealing cover (7) is provided with a first collecting port (8) and an air hole; the first collection port (8) is connected with the second through hole (42); the second collecting box (9) is provided with an air outlet port (10) and a powder inlet (11); a first filter screen is arranged in the air outlet port (10); the powder inlet (11) is connected with the output port of the air draft device (12).
2. The metal 3D printing equipment powder return pipeline device according to claim 1, characterized in that the length of the brush bristles (38) is not less than the distance from the upper end surface of the fourth sliding piece (39) to the upper end surface of the placing table (21); the brush (38) is located under the full area (30) of the placing table (21) when not in use, and one end of the brush (38) facing the placing table (21) is in contact with the placing table (21).
3. The metal 3D printing equipment powder return pipeline device according to claim 1, wherein the first noise reduction box (14) and the second noise reduction box (22) are identical in structure; the first noise reduction box (14) comprises a noise reduction plate and a sound insulation plate; the baffle is positioned on the side close to the first driving device (15); a hollow interlayer is arranged between the sound-absorbing plate and the sound-insulating plate; the interlayer is filled with sound-absorbing cotton.
4. The metal 3D printing equipment powder return pipeline device according to claim 1, characterized in that a dust concentration detector (13) is arranged in the shell (3).
5. The metal 3D printing equipment powder return pipeline device according to claim 1, characterized in that a first blowing device (4) and a second blowing device (43) are arranged on the outer wall of the shell (3); the air outlets of the first air blowing device (4) and the second air blowing device (43) are positioned in the shell (3), and the first air blowing device (4) and the second air blowing device (43) are symmetrically arranged by taking the placing table (21) as a center.
6. The metal 3D printing equipment powder return pipeline device according to claim 1, characterized in that a vibrator (25) is arranged in the placing table (21); the vibrator (25) is mounted on the lower end surface of the inclined plate (26).
7. The metal 3D printing equipment powder return pipeline device according to claim 1, characterized in that a sealing door (33) is arranged on the shell (3).
8. The metal 3D printing equipment powder return pipeline device according to claim 7, wherein the sealing door (33) is connected with the shell (3) in a sealing way through a high-temperature-resistant silica gel sealing ring; a transparent window (34) is arranged on the sealing door (33).
9. The metal 3D printing equipment powder return pipeline device according to claim 1, wherein a control panel (35) is arranged on the shell (3); a control button and a display screen are arranged on the control panel (35); a microcontroller is arranged in the control panel (35); the microcontroller is in communication connection with the air draft device (12), the first driving device (15), the dust concentration detector (13), the second driving device (23), the vibrator (25), the first air blowing device (4) and the second air blowing device (43).
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2023001681A3 (en) * | 2021-07-20 | 2023-03-16 | AMCM GmbH | Manufacturing apparatus for additive manufacturing of three-dimensional components, and method of manufacture |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110153423B (en) * | 2019-06-20 | 2021-08-20 | 河北敬业增材制造科技有限公司 | Industrial grade metal 3D printer |
| CN110947957A (en) * | 2019-11-29 | 2020-04-03 | 张家港振江粉末冶金制品有限公司 | Powder metallurgy pressing equipment convenient to maintain |
| CN113020631B (en) * | 2021-03-09 | 2022-12-30 | 南通理工学院 | Powder return pipeline device of metal 3D printing equipment |
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| CN108817383A (en) * | 2018-06-19 | 2018-11-16 | 张雪燕 | A kind of metal 3D printing equipment powder retrieving pipe road device |
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| CN101952444A (en) * | 2007-12-21 | 2011-01-19 | 巴斯夫植物科学有限公司 | Plants with increased yield (KO NUE) |
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| CN106273468A (en) * | 2015-06-09 | 2017-01-04 | 成都金采科技有限公司 | A kind of 3D printer dust-removing box |
| CN206605796U (en) * | 2017-02-21 | 2017-11-03 | 宁波菜鸟智能科技有限公司 | It is a kind of can comprehensive carry out dedusting 3D printer dust arrester |
| CN108817383A (en) * | 2018-06-19 | 2018-11-16 | 张雪燕 | A kind of metal 3D printing equipment powder retrieving pipe road device |
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Application publication date: 20190402 Assignee: Jiangsu Suiren Digital Technology Co.,Ltd. Assignor: GUANGXI HUISITONG TECHNOLOGY CO.,LTD. Contract record no.: X2024980000501 Denomination of invention: A return powder pipeline device for metal 3D printing equipment Granted publication date: 20210305 License type: Exclusive License Record date: 20240111 |