CN113119461B - 3D printing device of adjustable atmospheric pressure - Google Patents
3D printing device of adjustable atmospheric pressure Download PDFInfo
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- CN113119461B CN113119461B CN202110448469.1A CN202110448469A CN113119461B CN 113119461 B CN113119461 B CN 113119461B CN 202110448469 A CN202110448469 A CN 202110448469A CN 113119461 B CN113119461 B CN 113119461B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/16—Cooling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
- B29C64/245—Platforms or substrates
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- 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
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/16—Cooling
- B29C2035/1658—Cooling using gas
- B29C2035/1666—Cooling using gas dried air
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- 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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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Optics & Photonics (AREA)
- Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Thermal Sciences (AREA)
Abstract
The invention discloses a 3D printing device capable of adjusting air pressure, which relates to the technical field of 3D printing and comprises a 3D printer box, wherein a base and printing equipment are arranged in the 3D printer box, a processing table and a limiting component for limiting the processing table are arranged on the base, a lifting component for adjusting the height of the processing table is arranged on the 3D printer box, a heat radiating component for radiating the inside of the 3D printer box is arranged on the side surface of the 3D printer box, a supporting plate is arranged on the back surface of the 3D printer box, a vacuum pump is arranged on the supporting plate, a connecting pipe and a guide pipe are arranged on the vacuum pump, a vacuum valve is arranged on the guide pipe and communicated with the inside of the 3D printer box, a sealing door is arranged on the front surface of the 3D printer box, and the air pressure can be controlled by arranging the vacuum valve; the temperature change and the cooling speed of the FDM product in the forming process are regulated by controlling the ambient air pressure, so that the precision and the mechanical property of the printed product are effectively improved.
Description
Technical Field
The invention relates to the technical field of 3D printing, in particular to a 3D printing device capable of adjusting air pressure.
Background
In recent years, 3D printing technology has received wide attention from various industries, and compared with traditional manufacturing technology, 3D printing technology can realize the manufacturing of complex parts, shorten product development time, produce products which are difficult to process by traditional processing methods, and has great application prospects in the fields of automobile industry, energy industry, commercial machines, medical appliances, aerospace and the like.
Fused deposition modeling (fused deposition modeling, FDM) is one of the most common technologies in 3D printing technologies, and the basic process is to heat thermoplastic plastics and low-melting metal wires to a molten state, deposit the thermoplastic plastics and low-melting metal wires on a working platform layer by layer according to a preset motion track, stack the thermoplastic plastics and the low-melting metal wires, cool and shape the thermoplastic plastics and the low-melting metal wires, and summarize the thermoplastic plastics and the low-melting metal wires by 'point-movement forming lines, line-movement forming surfaces and surface-movement forming bodies', however, the fused deposition materials are rapidly cooled in the printing process, so that residual stress is accumulated, further the dimensional accuracy and mechanical strength of a printed product are affected, therefore, some enterprises always study to adjust the convection heat exchange strength by controlling the ambient air pressure, further adjust the temperature change in the forming process of the FDM product, although the initial effect is achieved, but in a vacuum environment, the heat cannot be dissipated in a forced convection heat exchange mode with air, namely a fan loses a heat dissipation function, so that the temperature of a conduit in a heat dissipation rib is increased, the printed wire is rigidly lowered after being heated, and a nozzle is blocked due to insufficient pressure required by extrusion, and a nozzle is blocked.
Disclosure of Invention
The invention aims to provide a 3D printing device capable of adjusting air pressure so as to solve the defects caused by the prior art.
The utility model provides a 3D printing device of adjustable atmospheric pressure, includes 3D printer box, 3D printer box is equipped with base and lithography apparatus, be equipped with the processing platform on the base and carry out spacing subassembly to the processing platform, be equipped with the elevating component who adjusts processing platform height on the 3D printer box, 3D printer box side is equipped with the radiating part to its inside, 3D printer box back-mounting support board, install the vacuum pump in the backup pad, be equipped with connecting pipe and honeycomb duct on the vacuum pump, be equipped with the vacuum valve on the honeycomb duct and communicate inside the 3D printer box, the sealing door is installed to 3D printer box front.
Preferably, the heat dissipation part comprises a water tank fixedly connected to the outer side wall of the 3D printer box, a plurality of heat dissipation fins are inserted in the side wall of the water tank, a water pump is installed in the water tank, a water inlet pipe is arranged on the water pump, a heat conduction ring is connected to the outer side of a printing head of the printing equipment, a guide plate is installed outside the heat conduction ring, a sealing sleeve is sleeved outside the guide plate, the water inlet pipe is communicated with the sealing sleeve, a water outlet pipe is arranged on the sealing sleeve, and the other end of the water outlet pipe is communicated into the water tank.
Preferably, a supporting frame is installed on the water tank, and a fan is installed on the supporting frame.
Preferably, the lifting part comprises two supporting blocks arranged on the upper surface of the box body of the 3D printer, a first rotating shaft is rotatably connected between the two supporting blocks, one end of the first rotating shaft is connected with an output shaft of the motor, the motor is arranged on one of the supporting blocks, rotating rollers are sleeved at two ends of the rotating shaft, one end of a connecting rope is fixedly connected to the outer side of each rotating roller, and the other end of the connecting rope penetrates into the box body of the 3D printer and is fixedly connected with the base.
Preferably, the clamping grooves are formed in two sides of the processing table, the limiting assembly comprises a bidirectional screw rod arranged in the base, a first bevel gear is connected to the outside of the bidirectional screw rod, a second rotating shaft is connected to the inner wall of the base in a rotating mode, a second bevel gear meshed with the first bevel gear is arranged at one end of the second rotating shaft, a rotating block is fixedly connected to the other end of the second rotating shaft, threaded sleeves are connected to two sides of the bidirectional screw rod in a threaded mode, one end of each threaded sleeve penetrates through a sliding groove in the base and is fixedly connected with a connecting frame, a clamping block is fixedly connected to one end of each connecting frame, and the clamping block is connected with the clamping groove in an inserting mode.
Preferably, a handle is arranged on the sealing door.
The invention has the advantages that: (1) The water pump carries the seal cover with water in through the inlet tube, the seal cover flows along the guide plate, absorb the heat on the heat conduction ring, then flow back into the radiator through the outlet pipe, reach the radiating effect to printing equipment, prevent that the temperature on the heat conduction ring from being higher than the glass transition temperature of printing material, and radiator fin absorbs the heat in the water, the fan starts and dispels the heat to radiator fin, thereby can make the inside water of radiator part can recycle, be favorable to the water economy resource, and dispel the heat through water, need not to adopt the fan to use in 3D printer box inside, can avoid the inside air flow of 3D printer box to cause the influence to the product of printing, be favorable to improving the quality of printing, and can improve the life of printing the head.
(2) The rotating block drives the second bevel gear on the second rotating shaft to rotate, the second bevel gear drives the bidirectional screw rod to rotate through the rotating block, the bidirectional screw rod rotates to drive the connecting frame on the shaft sleeve to move, the clamping block moves along with the connecting frame, the clamping block clamps the processing table through the clamping groove, the processing table is convenient to install and detach, and the processing table is convenient to replace and clean.
(3) The motor starts to drive the first rotation of pivot, and the commentaries on classics roller rotates along with the first rotation of pivot, can roll up or descend connecting rope then, and the base removes along with connecting rope, can adjust the height, makes things convenient for the print head to make the product.
(4) The vacuum pump and the vacuum valve are arranged to control the air pressure; the temperature change and the cooling speed of the FDM product in the forming process are regulated by controlling the ambient air pressure, so that the precision and the mechanical property of the printed product are effectively improved.
Drawings
Fig. 1 and 2 are schematic views of different angles of the present invention.
FIG. 3 is a schematic diagram of the internal structure of the present invention.
Figure 4 is a schematic view of the internal structure of the sealing sleeve according to the invention.
Fig. 5 is a schematic structural view of a lifting member in the present invention.
Fig. 6 is a schematic view of the internal structure of the base in the present invention.
Fig. 7 is a schematic structural view of a bidirectional screw rod in the present invention.
The printer comprises a 1D printer box body and a 3D printer box body; 2. sealing the door; 3. a handle; 4. a heat radiating member; 401. a water tank; 402. a heat radiation fin; 403. a water pump; 404. a water inlet pipe; 405. sealing sleeve; 406. a heat conducting ring; 407. a water outlet pipe; 408. a support frame; 409. a fan; 410. a deflector; 5. a lifting member; 501. a motor; 502. a first rotating shaft; 503. a rotating roller; 504. a connecting rope; 505. a support block; 6. a support plate; 7. a vacuum pump; 8. a connecting pipe; 9. a flow guiding pipe; 10. a vacuum valve; 11. a printing apparatus; 13. a base; 14. a processing table; 15. a two-way screw rod; 16. a first bevel gear; 17. a second rotating shaft; 18. a second bevel gear; 19. a rotating block; 20. a screw sleeve; 21. a connecting frame; 22. a clamping block; 23. a clamping groove.
Detailed Description
The invention is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
As shown in fig. 1 to 7, a 3D printing device capable of adjusting air pressure comprises a 3D printer box 1, a base 13 and a printing device 11 are arranged in the 3D printer box 1, a processing table 14 and a limiting component for limiting the processing table 14 are arranged on the base 13, a lifting component 5 for adjusting the height of the processing table 14 is arranged on the 3D printer box 1, a radiating component 4 for radiating the inside of the 3D printer box 1 is arranged on the side face of the 3D printer box 1, a supporting plate 6 is arranged on the back surface of the 3D printer box 1, a vacuum pump 7 is arranged on the supporting plate 6, a connecting pipe 8 and a guide pipe 9 are arranged on the vacuum pump 7, a vacuum valve 10 is arranged on the guide pipe 9 and is communicated with the inside of the 3D printer box 1, and a sealing door 2 is arranged on the front surface of the 3D printer box 1.
In this embodiment, the heat dissipation component 4 includes a water tank 401 fixedly connected to the outer side wall of the 3D printer box 1, a plurality of heat dissipation fins 402 are inserted on the side wall of the water tank 401, a water pump 403 is installed in the water tank 401, a water inlet pipe 404 is arranged on the water pump 403, a heat conducting ring 406 is connected to the outer side of a print head of the printing device 11, a guide plate 410 is installed outside the heat conducting ring 406, a sealing sleeve 405 is sleeved outside the guide plate 410, the water inlet pipe 404 is communicated with the sealing sleeve 405, a water outlet pipe 407 is arranged on the sealing sleeve 405, and the other end of the water outlet pipe 407 is communicated into the water tank 401.
In this embodiment, a support frame 408 is mounted on the water tank 401, and a fan 409 is mounted on the support frame 408.
In this embodiment, the lifting component 5 includes two supporting blocks 505 installed on the upper surface of the 3D printer case 1, a first rotating shaft 502 is rotatably connected between the two supporting blocks 505, one end of the first rotating shaft 502 is connected with an output shaft of the motor 501, the motor 501 is installed on one of the supporting blocks 505, two ends of the rotating shaft 502 are respectively sleeved with a rotating roller 503, one end of a connecting rope 504 is fixedly connected to the outer side of the rotating roller 503, and the other end of the connecting rope 504 passes through the 3D printer case 1 and is fixedly connected with the base 13.
In this embodiment, clamping grooves 23 are formed in two sides of the processing table 14, the limiting assembly comprises a bidirectional screw rod 15 installed in the base 13, a first bevel gear 16 is connected to the outside of the bidirectional screw rod 15, a second rotating shaft 17 is connected to the inner wall of the base 13 in a rotating mode, a second bevel gear 18 meshed with the first bevel gear 16 is arranged at one end of the second rotating shaft 17, a rotating block 19 is fixedly connected to the outside of the base 13 in an extending mode, threaded sleeves 20 are connected to two sides of the bidirectional screw rod 15 in a threaded mode, one end of each threaded sleeve 20 penetrates through a sliding groove in the base 13 and is fixedly connected with a connecting frame 21, a clamping block 22 is fixedly connected to one end of each connecting frame 21, and each clamping block 22 is spliced with the corresponding clamping groove 23.
In this embodiment, the sealing door 2 is provided with a handle 3.
Working process and principle: the staff starts the equipment, starts the vacuum pump 7, discharges the air in the 3D printer box 1 from the connecting pipe 8 through the flow guide pipe 9, starts the motor 501 to drive the rotating shaft I502 to rotate, the rotating roller 503 rotates along with the rotating shaft I502, then the connecting rope 504 can be wound up or lowered, the base 13 moves along with the connecting rope 504, the position of the base is adjusted according to the printing of the printing equipment 11, the heat generated by the printing equipment 11 is absorbed by the heat conducting ring 406, then the water pump 403 conveys the water into the sealing sleeve 405 through the water inlet pipe 404, the sealing sleeve 405 flows along the flow guide plate 410, the heat on the heat conducting ring 406 is absorbed, then flows back to the heat radiating component 4 through the water outlet pipe 407, the heat radiating effect of the printing equipment 11 is achieved, the heat in the water is absorbed by the heat radiating fin 402, the fan 409 starts to radiate heat to the radiating fins 402, then the water pump 403 starts to convey water into the sealing sleeve 405 through the water inlet pipe 404 for circulation radiating, the sealing door 2 is opened after printing, the finished product is taken away, when the processing table 14 needs to be replaced and cleaned, the rotating block 19 drives the second bevel gear 18 on the rotating shaft II 17 to rotate the connecting frame 21 on the screw sleeve 20 to move, the clamping block 22 moves along with the connecting frame 21 to two sides, the connecting frame 21 is separated from the clamping groove 23, the processing table 14 can be taken away, cleaned or replaced and maintained, the processing table 14 is replaced, the rotating block 19 is reversely rotated, the clamping block 22 moves towards the middle along with the connecting frame 21, and the clamping block 22 clamps the processing table 14 through the clamping groove 23.
It will be appreciated by those skilled in the art that the present invention can be carried out in other embodiments without departing from the spirit or essential characteristics thereof. Accordingly, the above disclosed embodiments are illustrative in all respects, and not exclusive. All changes that come within the scope of the invention or equivalents thereto are intended to be embraced therein.
Claims (2)
1. The utility model provides a 3D printing device of adjustable atmospheric pressure, its characterized in that, including 3D printer box (1), be equipped with base (13) and printing equipment (11) in 3D printer box (1), be equipped with processing platform (14) on base (13) and carry out spacing subassembly spacing to processing platform (14), be equipped with on 3D printer box (1) and adjust elevating system (5) of processing platform (14) height, 3D printer box (1) side is equipped with carries out radiating part (4) to its inside, 3D printer box (1) back installation backup pad (6), install vacuum pump (7) on backup pad (6), be equipped with connecting pipe (8) and honeycomb duct (9) on vacuum pump (7), be equipped with vacuum valve (10) on honeycomb duct (9) and inside intercommunication 3D printer box (1), sealing door (2) are installed in 3D printer box (1) front; the heat dissipation component (4) comprises a water tank (401) fixedly connected to the outer side wall of the 3D printer box body (1), a plurality of heat dissipation fins (402) are inserted in the side wall of the water tank (401), a water pump (403) is installed in the water tank (401), a water inlet pipe (404) is arranged on the water pump (403), a heat conduction ring (406) is connected to the outer side of a printing head of the printing equipment (11), a guide plate (410) is installed outside the heat conduction ring (406), a sealing sleeve (405) is sleeved outside the guide plate (410), the water inlet pipe (404) is communicated with the sealing sleeve (405), a water outlet pipe (407) is arranged on the sealing sleeve (405), and the other end of the water outlet pipe (407) is communicated into the water tank (401); a supporting frame (408) is arranged on the water tank (401), and a fan (409) is arranged on the supporting frame (408); the lifting component (5) comprises two supporting blocks (505) arranged on the upper surface of the 3D printer box body (1), a first rotating shaft (502) is rotatably connected between the two supporting blocks (505), one end of the first rotating shaft (502) is connected with an output shaft of the motor (501), the motor (501) is arranged on one of the supporting blocks (505), two ends of the first rotating shaft (502) are sleeved with rotating rollers (503), one end of a connecting rope (504) is fixedly connected outside the rotating rollers (503), and the other end of the connecting rope (504) penetrates into the 3D printer box body (1) and is fixedly connected with the base (13); clamping grooves (23) are formed in two sides of the processing table (14), the limiting assembly comprises a bidirectional screw rod (15) installed in the base (13), a first bevel gear (16) is connected to the outside of the bidirectional screw rod (15), a second rotating shaft (17) is connected to the inner wall of the base (13) in a rotating mode, a second bevel gear (18) meshed with the first bevel gear (16) is arranged at one end of the second rotating shaft (17), a rotating block (19) is fixedly connected to the outside of the base (13) in an extending mode, threaded sleeves (20) are connected to two sides of the bidirectional screw rod (15) in a threaded mode, a connecting frame (21) is fixedly connected to one end of the threaded sleeve (20) through a sliding groove in the base (13), a clamping block (22) is fixedly connected to one end of the connecting frame (21), and the clamping block (22) is spliced with the clamping grooves (23); the sealing door (2) is provided with a handle (3).
2. The method of using a 3D printing apparatus with adjustable air pressure according to claim 1, comprising the steps of:
step one, starting equipment by staff, starting a vacuum pump (7), and discharging air in a 3D printer box (1) from a connecting pipe (8) through a flow guide pipe (9);
step two, starting a motor (501) to drive a rotating shaft I (502) to rotate, enabling a rotating roller (503) to rotate along with the rotating shaft I (502), then winding or descending a connecting rope (504), and enabling a base (13) to move along with the connecting rope (504);
step three, the position of the printer is adjusted according to printing of the printer (11), the heat generated by the printer (11) is absorbed by the heat conducting ring (406), then the water is conveyed into the sealing sleeve (405) by the water pump (403) through the water inlet pipe (404), the sealing sleeve (405) flows along the guide plate (410), the heat on the heat conducting ring (406) is absorbed, then flows back into the heat radiating component (4) through the water outlet pipe (407), the effect of radiating the printer (11) is achieved, the heat in the water is absorbed by the heat radiating fins (402), and the fan (409) is started to radiate the heat of the heat radiating fins (402);
step four, starting a water pump (403) to convey water into a sealing sleeve (405) through a water inlet pipe (404) for circulating heat dissipation, opening a sealing door (2) after printing, and taking away a finished product;
step five, when the processing table (14) needs to be replaced and cleaned, the rotating block (19) drives the second bevel gear (18) on the rotating shaft II (17) to rotate the connecting frame (21) on the screw sleeve (20) to move, the clamping block (22) moves towards two sides along with the connecting frame (21), so that the connecting frame (21) is separated from the clamping groove (23), and the processing table (14) can be taken away;
step six, after cleaning or replacement and maintenance, the workpiece is replaced on the processing table (14), the rotating block (19) is reversed, the clamping block (22) moves towards the middle along with the connecting frame (21), and the clamping block (22) clamps the processing table (14) through the clamping groove (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110448469.1A CN113119461B (en) | 2021-04-25 | 2021-04-25 | 3D printing device of adjustable atmospheric pressure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110448469.1A CN113119461B (en) | 2021-04-25 | 2021-04-25 | 3D printing device of adjustable atmospheric pressure |
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| CN113119461A CN113119461A (en) | 2021-07-16 |
| CN113119461B true CN113119461B (en) | 2023-07-18 |
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| CN202110448469.1A Active CN113119461B (en) | 2021-04-25 | 2021-04-25 | 3D printing device of adjustable atmospheric pressure |
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| CN114393821B (en) * | 2022-01-20 | 2024-04-16 | 重庆塞领科技有限公司 | 3D printer is with safe interior blast apparatus |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN113119461A (en) | 2021-07-16 |
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