CN110695357A - Powder 3D printer is spread to metal - Google Patents
Powder 3D printer is spread to metal Download PDFInfo
- Publication number
- CN110695357A CN110695357A CN201911091992.2A CN201911091992A CN110695357A CN 110695357 A CN110695357 A CN 110695357A CN 201911091992 A CN201911091992 A CN 201911091992A CN 110695357 A CN110695357 A CN 110695357A
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- China
- Prior art keywords
- cavity
- scraper
- box
- printer
- working
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- 239000000843 powder Substances 0.000 title claims abstract description 118
- 239000002184 metal Substances 0.000 title claims abstract description 29
- 230000007704 transition Effects 0.000 claims abstract description 31
- 239000005336 safety glass Substances 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims description 27
- 238000000034 method Methods 0.000 claims description 7
- 239000000428 dust Substances 0.000 description 9
- 239000000758 substrate Substances 0.000 description 8
- 238000007639 printing Methods 0.000 description 7
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 238000003892 spreading Methods 0.000 description 5
- 238000005245 sintering Methods 0.000 description 4
- 238000010146 3D printing Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 3
- 229910052786 argon Inorganic materials 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 238000007664 blowing Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000010814 metallic waste Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000012778 molding material Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000005855 radiation Effects 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
- B22F10/10—Formation of a green body
-
- 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
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/70—Recycling
- B22F10/73—Recycling of powder
-
- 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
- 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
- B33Y40/00—Auxiliary operations or equipment, e.g. for material handling
-
- 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
- B22F12/30—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
- B22F12/60—Planarisation devices; Compression devices
- B22F12/67—Blades
-
- 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
Abstract
The invention discloses a metal powder laying 3D printer, wherein a working bin and a transition bin are arranged in the printer; the printer also comprises a laser device, a lifting device and a base plate; the upper end surface of the printer is provided with safety glass; the laser device is arranged above the safety glass; the working bin also comprises a scraper box and a controller; the inner wall of the working bin is provided with a chute; the fixed end of the cylinder is arranged at the tail end of the sliding chute, and the piston rod is connected with the scraper box; the bottom surface of the scraper box is provided with a scraper; an exhaust fan and a filter screen are arranged in the scraper box; the bottom surface of the scraper box is provided with a groove; a first cavity and a second cavity are arranged in the scraper box; the small powder collecting box is arranged on the scraper box in a drawable manner; the small powder collecting box is communicated with the first cavity and the second cavity respectively; a filter screen is arranged at the joint of the first cavity and the second cavity; an exhaust fan is arranged at the top in the second cavity; the top end surface of the cavity is provided with a plurality of air outlets; the controller is respectively connected with the exhaust fan and the air cylinder. The invention effectively realizes high-efficiency and accurate powder removal.
Description
Technical Field
The invention relates to the technical field of 3D printing, in particular to a metal powder laying 3D printer.
Background
Metal 3D printing is an emerging technology in the manufacturing industry that is rapidly developing, especially there are many types of metal 3D printers in developed countries in europe and america. Metal 3D printing is an additive manufacturing technique that prints three-dimensional objects layer by sintering metal powder with laser based on a digital model file. The metal 3D printer is generally composed of a powder supply device, a powder spreading scraper device, a forming cylinder system, a sintering or solidifying device, a powder receiving cavity, a control system, a cooling and air circulating system and the like. The step of printing the part mainly comprises three steps, namely: and (3) powder feeding, wherein the powder feeding device feeds the powder to the front of a scraper of the powder spreading scraper device. The second step is that: and (4) spreading powder, wherein a scraper of the powder spreading scraper device moves horizontally to spread the powder to be used. Third, sintering (or curing); the sintering (or solidifying) device works to sinter (or solidify) the powder, and the three steps are a long-time repeated and cyclic working process of the machine.
Powder 3D printer is spread to current metal, printing accomplish, take out the back with the finished product, can leave many useless powder in the working bin, be difficult to the clearance, the mode of prior art multi-use whole blowing removes powder, and the gumming is inefficient. Therefore, a metal powder laying 3D printer capable of efficiently and accurately removing powder is provided.
Disclosure of Invention
In view of the technical problems in the background art, the invention provides a metal powder laying 3D printer capable of efficiently and accurately removing powder.
In order to achieve the purpose, the invention provides the following technical scheme:
a metal powder laying 3D printer is characterized in that a working flat plate horizontally arranged in the printer is divided into a closed upper cavity and a closed lower cavity; the upper cavity is divided into a closed working bin and a transition bin by a transition bin door which is vertically arranged; two openings are sequentially arranged on the working flat plate, and a forming cylinder and a material cylinder are respectively and fixedly arranged in the lower cavity and at positions below the two openings; the upper ends of the forming cylinder and the material cylinder are respectively provided with openings which respectively correspond to the two openings on the working flat plate; the printer also comprises a laser device, a lifting device and a base plate; the lifting devices and the base plate are two, and the corresponding lifting devices are respectively arranged at the lower part of the forming cylinder and the material cylinder and at the inner positions of the lower cavity; each lifting device respectively extends into the forming cylinder and the material cylinder to be fixedly connected with the corresponding base plate matched with the forming cylinder or the material cylinder; the upper end surface of the printer is provided with safety glass which is positioned right above the material forming cylinder; the laser device is fixedly arranged at a position right above the safety glass; the method is characterized in that: the working bin also comprises a scraper box and a controller; the inner wall of the working bin is provided with a sliding chute along the length direction of the working flat plate; the cylinder is fixedly arranged at the tail end of the chute close to the material cylinder, and a piston rod of the cylinder is fixedly connected with the scraper box; a scraper is fixedly arranged on the bottom surface of the scraper box, and the bottom surface of the scraper is abutted against the working flat plate; an exhaust fan and a filter screen are arranged in the scraper box; a powder suction groove is formed in the bottom surface of the scraper box and is far away from the scraper; a first cavity is vertically arranged in the scraper box and communicated with the powder suction groove; the small powder collecting box is arranged above the scraper box and the groove in a drawable manner; a second cavity is arranged above the scraper box and the small powder collecting box; openings are formed in the top of the small powder collecting box and the side face close to the first cavity and are respectively communicated with the first cavity and the second cavity; a filter screen is arranged at the joint of the first cavity and the second cavity; an exhaust fan is arranged at the top in the second cavity; the top end surface of the cavity is provided with a plurality of air outlets; a powder outlet is formed between the forming cylinder and the transition bin on the working flat plate; the powder collecting box is arranged right below the lower powder opening and communicated with the lower powder opening; the controller is respectively connected with the exhaust fan and the air cylinder.
The printer further comprises a control panel; the control panel is arranged on the outer wall of the printer; the control panel is provided with a scraper working key and a powder suction key; the scraper working key is connected with the air cylinder through the controller; the powder sucking key is connected with an exhaust fan through a controller.
The scraper box also comprises a magnetic block I and a magnetic block II; the scraper box is internally provided with a scraper; the outer side wall of the scraper box is provided with a small powder collecting box drawing opening, the drawing opening is inwards extended along the horizontal direction to form a cavity matched with the small powder collecting box, and the corresponding end surfaces of the cavity and the small powder collecting box are respectively provided with a magnetic block I and a magnetic block II; and a small powder collecting box handle is arranged on the outer side of the small powder collecting box.
The printer further comprises a working bin gate; outer wall grooves are formed in the outer wall of the printer and the positions corresponding to the working bins; an observation window and two through holes are arranged on the end face of the groove, and gloves are arranged in the through holes and extend into the working bin; the working bin door is hinged to the groove of the outer wall and matched with the groove of the outer wall.
An opening is formed in the outer wall of the printer corresponding to the transition bin, and an outer door of the transition bin is arranged at the opening; and a transition bin outer door handle is arranged on the transition bin outer door.
And a transition bin handle is arranged on the end surface of the transition bin door close to the working bin.
The invention has the beneficial effects that:
1. according to the invention, the air exhaust system is arranged in the scraper box, the exhaust fan is started, the residual metal powder on the substrate and the working flat plate in the forming cylinder is firstly sucked into the cavity in the scraper box, large-particle metal powder is adsorbed on the filter screen through the filter screen, small-particle dust enters the powder collecting small box, the filtered argon/nitrogen is discharged out of the scraper box through the air outlet, the scraper box reciprocates on the working flat plate while absorbing dust, the powder absorption range is expanded, the effect of efficient powder removal can be achieved, and compared with integral air blowing, the powder removal is more accurate;
2. before dust collection, the air cylinder controls the scraper box to drive the scraper to push residual metal powder to the lower powder opening, the residual metal powder falls into the lower powder collecting box, pretreatment is carried out before powder absorption, efficiency is improved, and meanwhile metal waste powder can be recycled;
3. the dust collecting small box is fixed inside the scraper box through the magnetic block in a suction mode, dust treatment in the dust collecting small box and cleaning in the dust collecting small box are carried out regularly through convenient disassembly, and a filter screen on the dust collecting small box can be disassembled to be replaced and cleaned.
Drawings
FIG. 1 is a schematic view of the internal structure of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1;
FIG. 3 is a schematic view of the internal structure of the doctor blade box;
FIG. 4 is a schematic view of the bottom structure of the scraper box;
FIG. 5 is a schematic view of the external structure of the present invention;
in the figure, 1-printer, 2-lower cavity, 3-transition bin, 4-transition bin outer door handle, 5-transition bin door, 6-safety glass, 7-laser device, 8-upper cavity, 9-working bin, 10-chute, 11-cylinder, 12-piston rod, 13-material cylinder, 14-base plate, 15-lifting device, 16-powder collecting box, 17-powder outlet, 18-forming cylinder, 19-scraper box, 20-scraper, 21-powder collecting small box, 22-powder collecting small box handle, 23-transition bin handle, 24-second cavity, 25-air outlet, 26-exhaust fan, 27-filter screen, 28-first cavity, 29-powder sucking groove and 30-working bin door, 31-glove through hole, 32-observation window, 33-control panel, 34-magnet I, 35-magnet II, 36-working plate, 37-transition bin outer door and 38-outer wall groove.
Detailed Description
Referring to fig. 1 to 5, a metal powder laying 3D printer, wherein a horizontal working plate 36 is arranged in the printer 1 to be divided into an upper closed cavity 8 and a lower closed cavity 2; the upper cavity 8 is divided into a closed working bin 9 and a transition bin 3 by a transition bin door 5 which is vertically arranged; the working flat plate 36 is sequentially provided with two openings, and a forming cylinder 18 and a material cylinder 13 are respectively and fixedly arranged in the lower cavity 2 and at positions below the two openings; the upper ends of the forming cylinder 18 and the material cylinder 13 are respectively provided with openings corresponding to the two openings on the working flat plate 36; the printer 1 further comprises a laser device 7, a lifting device 15 and a base plate 14; two lifting devices 15 and two base plates 14 are provided, and corresponding lifting devices 15 are respectively arranged at the lower part of the forming cylinder 18 and the material cylinder 13 and at the inner position of the lower cavity 2; each lifting device 15 extends into the forming cylinder 18 and the material cylinder 13 respectively and is fixedly connected with the corresponding base plate 14 matched with the forming cylinder 18 or the material cylinder 13; the upper end surface of the printer 1 is provided with safety glass 6 which is positioned right above the material forming cylinder 13; the laser device 7 is fixedly arranged at the position right above the safety glass 6; the working bin 9 also comprises a scraper box 19 and a controller; the inner wall of the working bin 9 is provided with a chute 10 along the length direction of the working flat plate 36; the cylinder 11 is fixedly arranged at the tail end of the chute 10 close to the material cylinder 13, and a piston rod 12 of the cylinder 11 is fixedly connected with the scraper box 19; the bottom surface of the scraper box 19 is fixedly provided with a scraper 20, and the bottom surface of the scraper 20 is abutted against the working flat plate 36; an exhaust fan 26 and a filter screen 27 are arranged in the scraper box 19; a powder suction groove 29 is formed in the bottom surface of the scraper box 19 and is far away from the scraper 20; a first cavity 28 is vertically arranged inside the scraper box 19 and communicated with a powder suction groove 29; the small powder collecting box 21 is arranged above the scraper box 19 and the powder suction groove 29 in a drawing way; a second cavity 24 is arranged above the scraper box 19 and the small powder collecting box 21; openings are formed in the top of the small powder collecting box 21 and the side face close to the first cavity 28 and are respectively communicated with the first cavity 28 and the second cavity 24; a filter screen 27 is arranged at the joint of the first cavity 28; an exhaust fan 26 is arranged at the top in the second cavity 24; the top end face of the cavity is provided with a plurality of air outlets 25; the working flat plate 36 is positioned between the forming cylinder 18 and the transition bin 3 and is provided with a powder outlet 17; the powder collecting box 16 is arranged right below the lower powder opening 17 and communicated with the lower powder opening 17; the controller is connected to the suction fan 26 and the cylinder 11, respectively.
The printer 1 further includes a control panel 33; the control panel 33 is arranged on the outer wall of the printer 1; a scraper working key and a powder suction key are arranged on the control panel 33; the scraper working key is connected with the cylinder 11 through a controller; the powder suction button is connected with the exhaust fan 26 through a controller.
The scraper box 19 also comprises a magnet I34 and a magnet II 35; a powder collecting small box drawing opening is formed in the outer side wall of the scraper box 19, a cavity matched with the powder collecting small box 21 is formed in the drawing opening in an inward extending mode along the horizontal direction, and a magnetic block I34 and a magnetic block II 35 are respectively arranged on the end faces, corresponding to the powder collecting small box 21, of the cavity; a small powder collecting box handle 22 is arranged outside the small powder collecting box 21. The powder collecting small box 21 can be taken out of the scraper box cavity through the handle 22, and the filter screen 27 can be detached for cleaning or replacement.
The printer 1 further comprises a working bin gate 30; outer wall grooves 38 are formed in the outer wall of the printer 1 and correspond to the working bin 9; an observation window 32 and two glove through holes 31 are arranged on the end face of the outer wall groove 38, and gloves are arranged at the positions of the glove through holes 31 and extend into the bin; the working chamber door 30 is hinged at the outer wall groove 38 and matched with the outer wall groove 38, thereby further sealing the working chamber 9 and preventing the internal gas from leaking.
The outer wall of the working bin is respectively provided with an air inlet and an air outlet, and is respectively provided with a rubber plug which is matched with the air inlet and the air outlet for sealing.
An opening is arranged on the outer wall of the printer 1 corresponding to the transition bin 3, and an outer door 37 of the transition bin is arranged at the opening; the transition bin outer door 37 is provided with a transition bin outer door handle 4.
A transition bin handle 23 is arranged on the end surface of the transition bin door 5 close to the working bin 9.
As shown in fig. 1-5, the working principle and flow of the present invention are as follows:
the working chamber door 30 is closed before starting the printing process, and the working chamber 9 is continuously filled with argon/nitrogen gas during the printing process in order to prevent metal oxidation. In the initial state, the substrate 14 in the forming cylinder 18 is controlled to be flush with the working plate 36, the lifting device corresponding to the substrate 14 in the material cylinder 13 is located at the lowest position, metal powder is loaded on the substrate 14 in the material cylinder 13, the air cylinder 11 starts to work, so that the scraper 20 at the bottom of the scraper box 19 controlled to flatly spread the powder from the material cylinder 13 onto the substrate 14 above the forming cylinder 18, and partial powder is solidified by laser beams by using Selective Laser Melting (SLM) on the laser device 7. The absorption of laser radiation causes the metal powder to be heated to a temperature above the melting temperature, which causes the exposed area of the current layer and the area below it that has solidified to be fused together by metallurgical melting, and as the laser beam sweeps over the metal powder layer, bright and dazzling sparks can be seen, and during the thermal interaction, the metal powder particles are splashed away from the molten pool, and the surface information of the exposed current layer is sent from the controller to the scanning control unit, thereby building a three-dimensional structure with the metal powder molding material powder layer by layer. In the printing process, the lifting device 15 controls the base plate of the forming cylinder 18 to move downwards, the base plate of the material cylinder 13 is lifted, wherein the lifting height of the base plate of the material cylinder 13 is twice of that of the base plate of the forming cylinder 18 (enough powder for printing on each layer) and the topmost surface of the printed workpiece is flush with the working flat plate 36 before powder spreading every time; when printing is finished, the inner substrate 14 of the forming cylinder 18 is adjusted to be flush with the working flat plate 36, the working bin door 30 is opened, the transition bin door 5 is opened through the gloves on the groove 29 on the outer wall of the printer 1, a printed workpiece is placed in the transition bin 3, and then an object is taken out through the outer transition bin door 37, so that inert gas in the working bin 9 is prevented from leaking.
After the piece is taken, a large amount of residual metal waste powder on the substrate 14 of the forming cylinder 18 and the working flat plate 36 is pressed down, a scraper working key is pressed down, the air cylinder 11 controls the scraper box 19 to drive the scraper 20 to firstly push the residual metal powder to the powder outlet 17, the residual metal powder is recycled to the lower powder collecting box 16, then the powder absorbing key is pressed down, an exhaust fan 26 in the scraper box 20 box 19 is started, when the scraper box 19 moves left and right, the residual metal powder on the substrate 14 and the working flat plate 36 in the forming cylinder 18 is firstly absorbed into a powder absorbing groove 29 of the scraper box 19 and enters the first cavity 28, large-particle metal powder is absorbed on the filter screen 27 through the filter screen 27 (the filter screen 27 can be detached for replacement and cleaning), small-particle dust enters the powder collecting small box 21, and the filtered argon/nitrogen passes through the air outlet 25 at the upper end of the second cavity 24 and is discharged out. The scraper box 19 can move in a reciprocating way on the working flat plate while absorbing powder, and the effect of efficiently and accurately removing the powder can be achieved.
Claims (6)
1. A metal powder laying 3D printer is characterized in that a working flat plate horizontally arranged in the printer is divided into a closed upper cavity and a closed lower cavity; the upper cavity is divided into a closed working bin and a transition bin by a transition bin door which is vertically arranged; two openings are sequentially arranged on the working flat plate, and a forming cylinder and a material cylinder are respectively and fixedly arranged in the lower cavity and at positions below the two openings; the upper ends of the forming cylinder and the material cylinder are respectively provided with openings which respectively correspond to the two openings on the working flat plate; the printer also comprises a laser device, a lifting device and a base plate; the lifting devices and the base plate are two, and the corresponding lifting devices are respectively arranged at the lower part of the forming cylinder and the material cylinder and at the inner positions of the lower cavity; each lifting device respectively extends into the forming cylinder and the material cylinder to be fixedly connected with the corresponding base plate matched with the forming cylinder or the material cylinder; the upper end surface of the printer is provided with safety glass which is positioned right above the material forming cylinder; the laser device is fixedly arranged at a position right above the safety glass; the method is characterized in that: the working bin also comprises a scraper box and a controller; the inner wall of the working bin is provided with a sliding chute along the length direction of the working flat plate; the cylinder is fixedly arranged at the tail end of the chute close to the material cylinder, and a piston rod of the cylinder is fixedly connected with the scraper box; a scraper is fixedly arranged on the bottom surface of the scraper box, and the bottom surface of the scraper is abutted against the working flat plate; an exhaust fan and a filter screen are arranged in the scraper box; a powder suction groove is formed in the bottom surface of the scraper box and is far away from the scraper; a first cavity is vertically arranged in the scraper box and communicated with the powder suction groove; the small powder collecting box is arranged above the scraper box and the groove in a drawable manner; a second cavity is arranged above the scraper box and the small powder collecting box; openings are formed in the top of the small powder collecting box and the side face close to the first cavity and are respectively communicated with the first cavity and the second cavity; a filter screen is arranged at the joint of the first cavity and the second cavity; an exhaust fan is arranged at the top in the second cavity; the top end surface of the cavity is provided with a plurality of air outlets; a powder outlet is formed between the forming cylinder and the transition bin on the working flat plate; the powder collecting box is arranged right below the lower powder opening and communicated with the lower powder opening; the controller is respectively connected with the exhaust fan and the air cylinder.
2. The printer according to claim 1, characterized in that: the printer further comprises a control panel; the control panel is arranged on the outer wall of the printer; the control panel is provided with a scraper working key and a powder suction key; the scraper working key is connected with the air cylinder through the controller; the powder sucking key is connected with an exhaust fan through a controller.
3. The printer according to claim 1, characterized in that: the scraper box also comprises a magnetic block I and a magnetic block II; the scraper box is internally provided with a scraper; the outer side wall of the scraper box is provided with a small powder collecting box drawing opening, the drawing opening is inwards extended along the horizontal direction to form a cavity matched with the small powder collecting box, and the corresponding end surfaces of the cavity and the small powder collecting box are respectively provided with a magnetic block I and a magnetic block II; and a small powder collecting box handle is arranged on the outer side of the small powder collecting box.
4. The printer according to claim 1, characterized in that: the printer further comprises a working bin gate; outer wall grooves are formed in the outer wall of the printer and the positions corresponding to the working bins; an observation window and two through holes are arranged on the end face of the groove, and gloves are arranged in the through holes and extend into the working bin; the working bin door is hinged to the groove of the outer wall and matched with the groove of the outer wall.
5. The printer according to claim 4, wherein: an opening is formed in the outer wall of the printer corresponding to the transition bin, and an outer door of the transition bin is arranged at the opening; and a transition bin outer door handle is arranged on the transition bin outer door.
6. The printer according to claim 1, characterized in that: and a transition bin handle is arranged on the end surface of the transition bin door close to the working bin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911091992.2A CN110695357A (en) | 2019-11-11 | 2019-11-11 | Powder 3D printer is spread to metal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911091992.2A CN110695357A (en) | 2019-11-11 | 2019-11-11 | Powder 3D printer is spread to metal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110695357A true CN110695357A (en) | 2020-01-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911091992.2A Pending CN110695357A (en) | 2019-11-11 | 2019-11-11 | Powder 3D printer is spread to metal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110695357A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111822706A (en) * | 2020-07-09 | 2020-10-27 | 杭州喜马拉雅信息科技有限公司 | Metal 3D printing equipment capable of reducing defects of formed parts |
| CN112571795A (en) * | 2020-11-04 | 2021-03-30 | 上海睿现信息科技有限公司 | 3D prints dustproof scraper motion structure |
| CN112846235A (en) * | 2021-01-07 | 2021-05-28 | 东北林业大学 | Laser sintering device capable of efficiently removing dust |
| CN115533131A (en) * | 2022-09-05 | 2022-12-30 | 安徽省春谷3D打印智能装备产业技术研究院有限公司 | Metal 3D is shock absorber structure for printer |
| CN117680713A (en) * | 2024-02-01 | 2024-03-12 | 西安赛隆增材技术股份有限公司 | Powder bed electron beam additive manufacturing equipment |
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