CN111645322A - 3D printing nozzle device and printing method - Google Patents
3D printing nozzle device and printing method Download PDFInfo
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- CN111645322A CN111645322A CN202010743498.6A CN202010743498A CN111645322A CN 111645322 A CN111645322 A CN 111645322A CN 202010743498 A CN202010743498 A CN 202010743498A CN 111645322 A CN111645322 A CN 111645322A
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- 238000007639 printing Methods 0.000 title claims abstract description 54
- 238000010146 3D printing Methods 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims abstract description 18
- 239000000463 material Substances 0.000 claims abstract description 63
- 238000003860 storage Methods 0.000 claims abstract description 38
- 239000002994 raw material Substances 0.000 claims abstract description 28
- 239000007921 spray Substances 0.000 claims abstract description 26
- 238000003825 pressing Methods 0.000 claims abstract description 25
- 238000010438 heat treatment Methods 0.000 claims abstract description 17
- 230000000712 assembly Effects 0.000 claims description 2
- 238000000429 assembly Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 15
- 238000002844 melting Methods 0.000 abstract description 7
- 230000008018 melting Effects 0.000 abstract description 7
- 230000002411 adverse Effects 0.000 abstract description 5
- 238000007711 solidification Methods 0.000 abstract description 4
- 230000008023 solidification Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000012255 powdered metal Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000004557 technical material Substances 0.000 description 1
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Classifications
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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
- B29C64/205—Means for applying layers
- B29C64/209—Heads; Nozzles
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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
- B29C64/10—Processes of additive manufacturing
- B29C64/106—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
- B29C64/112—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using individual droplets, e.g. from jetting heads
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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
- 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
- B33Y10/00—Processes of additive manufacturing
-
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Optics & Photonics (AREA)
- Coating Apparatus (AREA)
Abstract
A3D printing nozzle device comprises a nozzle body, a first connecting piece, a second connecting piece, a third connecting piece and a pressing assembly; the nozzle body comprises a material storage part, a material conveying part, a spiral conveying shaft, a fixing part, a spray head and a feeding hose; the material storage piece is provided with a first heating piece, and a material storage cavity is arranged inside the material storage piece; the feeding hose is arranged on the material storage piece and is communicated with the material storage cavity; the material conveying piece is arranged on the material storage piece, and a material conveying hole for raw materials to pass through is formed in the material conveying piece; the conveying part is provided with a second heating part; the spiral conveying shaft is arranged on the conveying part and is positioned in the conveying cavity; the invention further provides a 3D printing method. The invention has simple operation and better protection effect, obviously prolongs the service life of the nozzle, is convenient to adjust the direction and the angle of the nozzle, improves the 3D printing efficiency and the printing effect, saves time and labor in printing operation, can also enable printing raw materials to be always in a melting state, and avoids the solidification of the printing raw materials to bring adverse effect to the printing process.
Description
Technical Field
The invention relates to the technical field of 3D printing nozzles, in particular to a 3D printing nozzle device and a printing method.
Background
3D printing, one of the rapid prototyping technologies, is a technology for constructing an object by using an adhesive material such as powdered metal or plastic based on a digital model file and by printing layer by layer, and 3D printing is generally implemented by using a digital technical material printer, and is generally used for manufacturing models in the fields of mold manufacturing, industrial design, and the like, and then gradually used for direct manufacturing of some products, and the technology is applied to the fields of jewelry, footwear, industrial design, construction, engineering and construction, automobiles, aerospace, dentistry, medical industry, education, geographic information systems, civil engineering, guns, and others;
the 3D printing nozzle device is an important component accessory of 3D printing equipment, but the existing 3D printing nozzle device is not simple and convenient enough to operate, is difficult to adjust the direction and the angle of the device, further has adverse effect on printing efficiency, does not have protective performance, and is easy to cause nozzle damage due to collision.
Disclosure of Invention
Objects of the invention
In order to solve the technical problems in the background art, the invention provides the 3D printing nozzle device and the printing method, which are simple and convenient to operate, have better protection effect, obviously prolong the service life of the nozzle, facilitate the adjustment of the direction and the angle of the nozzle, improve the 3D printing efficiency and the printing effect, save time and labor in printing operation, enable the printing raw materials to be always in a melting state, and avoid the solidification of the printing raw materials to bring adverse effects to the printing process.
(II) technical scheme
In order to solve the problems, the invention provides a 3D printing nozzle device, which comprises a nozzle body, a first connecting piece, a second connecting piece, a third connecting piece, a first connecting rod, a first elastic piece, a first locking piece, a rotating piece, a connecting plate, a rotating rod, a second connecting rod, a third connecting rod, a threaded pipe, a threaded rod, a fixing plate and a pressing assembly, wherein the first connecting piece is arranged on the nozzle body;
the nozzle body comprises a material storage part, a material conveying part, a spiral conveying shaft, a fixing part, a spray head and a feeding hose; the material storage piece is provided with a first heating piece, and a material storage cavity is arranged inside the material storage piece; the feeding hose is arranged on the material storage piece and is communicated with the material storage cavity; the material conveying piece is arranged on the material storage piece, and a material conveying hole for raw materials to pass through is formed in the material conveying piece; the conveying part is provided with a second heating part, and a conveying cavity is arranged inside the second heating part; the spiral conveying shaft is arranged on the conveying part and is positioned in the conveying cavity; the fixed part is arranged at the bottom of the material conveying part, and a control valve is arranged on the fixed part; the spray head is arranged on the fixing piece;
the connecting plate is arranged on the first connecting piece, and the nozzle body is rotatably connected with the connecting plate through a rotating rod; the fixing plate is vertically arranged on the first connecting piece, and the threaded pipe is rotatably arranged on the fixing plate; one end of the threaded rod is in threaded connection with the threaded pipe, and the other end of the threaded rod is connected with the third connecting rod; the second connecting rod is arranged on the nozzle body, and the third connecting rod is connected with the first connecting piece and the second connecting rod;
the second connecting piece is positioned above the first connecting piece, the first connecting piece is provided with a first connecting block, and the second connecting piece is provided with a second connecting block; the first connecting rod is vertically arranged and penetrates through the first connecting block and the second connecting block, and the first locking pieces are positioned at two ends of the first connecting rod and are in threaded connection with the first connecting rod; the first elastic piece is vertically sleeved on the first connecting rod and is connected with the first connecting block and the second connecting block;
the third connecting piece is positioned above the second connecting piece; the rotating piece is vertically arranged on the third connecting piece and is rotationally connected with the second connecting piece; the pressing assembly is vertically arranged on the third connecting piece and is propped against the second connecting piece.
Preferably, the hold-down assemblies are distributed in an annular array around the rotatable member.
Preferably, the pressing assembly comprises a fixed cylinder, an insertion rod, a limiting piece, a second elastic piece and a pressing piece; the fixed cylinder is vertically arranged on the second connecting piece, and an opening of the fixed cylinder faces downwards; the inserting rod is vertically arranged and inserted into the fixed cylinder; the limiting piece is arranged in the fixed cylinder in a sliding manner and is connected with the inserted link; the second elastic piece is vertically arranged in the fixed cylinder and connected with the limiting piece; the pressing piece is arranged on the inserted bar and props against the third connecting piece.
Preferably, the fixing rod is further included; two adjacent inserted bars are connected through a fixed bar.
Preferably, the side of the pressing piece facing the second connecting piece is provided with an anti-slip layer.
Preferably, the outer walls of the material storage member and the material conveying member are both provided with heat insulation layers.
Preferably, the material storage member is provided with a threaded hole, the material conveying member is provided with an external thread, and the material conveying member is in threaded connection with the material storage member.
Preferably, the spray head is provided with a ring-shaped part with internal threads, the fixing part is provided with a ring-shaped thread groove, and the ring-shaped part is in threaded connection with the fixing part.
Preferably, the device further comprises a second locking member; and a threaded hole is formed in the third connecting piece, a threaded hole is correspondingly formed in the printing equipment, and the third connecting piece is in threaded connection with the printing equipment through a second locking piece.
The invention also provides a 3D printing method, which comprises the following steps:
s1, selecting a spray head with a spray hole with a certain diameter according to the requirement, and mounting the spray head on the fixing piece;
s2, feeding the printing raw materials into the nozzle body through a feeding hose;
s3, converting electric energy into heat energy by the first heating piece and the second heating piece, and keeping the printing raw material in a melting state;
s4, conveying the printing raw material into the fixing piece by the spiral conveying shaft;
and S5, opening the control valve on the fixed piece, and ejecting the printing raw material from the ejection head.
The technical scheme of the invention has the following beneficial technical effects:
the invention has simple operation and better protection effect, obviously prolongs the service life of the nozzle, is convenient to adjust the direction and the angle of the nozzle, improves the 3D printing efficiency and the printing effect, saves time and labor in printing operation, can also enable the printing raw material to be always in a melting state, and avoids the solidification of the printing raw material to bring adverse effect to the printing process.
Drawings
Fig. 1 is a schematic structural diagram of a 3D printing nozzle device and a printing method according to the present invention.
Fig. 2 is a schematic structural diagram of a nozzle body in a 3D printing nozzle device and a printing method according to the present invention.
Fig. 3 is a schematic structural diagram (top view) of a second connecting member in a 3D printing nozzle device and a printing method according to the present invention.
Fig. 4 is a schematic structural diagram of a pressing assembly in a 3D printing nozzle device and a printing method according to the present invention.
Reference numerals: 1. a nozzle body; 2. a material storage member; 3. a material conveying part; 4. a first heat generating member; 5. a second heat generating member; 6. a screw conveying shaft; 7. a fixing member; 8. a spray head; 9. a delivery hole; 10. a heat-insulating layer; 11. a feed hose; 12. a first connecting member; 13. a second connecting member; 14. a third connecting member; 15. a first connection block; 16. a second connecting block; 17. a first connecting rod; 18. a first elastic member; 19. a first locking member; 20. a rotating member; 21. a connecting plate; 22. rotating the rod; 23. a second connecting rod; 24. a third connecting rod; 25. a threaded pipe; 26. a threaded rod; 27. a fixing plate; 28. fixing the rod; 29. a fixed cylinder; 30. inserting a rod; 31. a limiting member; 32. a second elastic member; 33. a compression member; 34. an anti-slip layer; 35. and a second locking member.
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.
As shown in fig. 1 to 4, a 3D printing nozzle device according to the present invention includes a nozzle body 1, a first connecting member 12, a second connecting member 13, a third connecting member 14, a first connecting rod 17, a first elastic member 18, a first locking member 19, a rotating member 20, a connecting plate 21, a rotating rod 22, a second connecting rod 23, a third connecting rod 24, a threaded pipe 25, a threaded rod 26, a fixing plate 27, a fixing rod 28, and a pressing assembly;
the nozzle body 1 comprises a storage part 2, a conveying part 3, a spiral conveying shaft 6, a fixing part 7, a spray head 8 and a feeding hose 11; the material storage piece 2 is provided with a first heating piece 4, and a material storage cavity is arranged inside the material storage piece; the feeding hose 11 is arranged on the material storage member 2 and is communicated with the material storage cavity; the material conveying part 3 is arranged on the material storage part 2, and a material conveying hole 9 for raw materials to pass through is formed in the material conveying part 3; the material conveying part 3 is provided with a second heating part 5, and a material conveying cavity is arranged inside the material conveying part; the spiral conveying shaft 6 is arranged on the conveying member 3 and is positioned in the conveying cavity; the fixing piece 7 is arranged at the bottom of the material conveying piece 3, and a control valve is arranged on the fixing piece 7; the spray head 8 is arranged on the fixing part 7;
the connecting plate 21 is arranged on the first connecting piece 12, and the nozzle body 1 is rotatably connected with the connecting plate 21 through a rotating rod 22; the fixing plate 27 is vertically arranged on the first connecting piece 12, and the threaded pipe 25 is rotatably arranged on the fixing plate 27; one end of the threaded rod 26 is in threaded connection with the threaded pipe 25, and the other end is connected with the third connecting rod 24; the second connecting rod 23 is arranged on the nozzle body 1, and the third connecting rod 24 is connected with the first connecting piece 12 and the second connecting rod 23;
the second connecting piece 13 is positioned above the first connecting piece 12, the first connecting piece 12 is provided with a first connecting block 15, and the second connecting piece 13 is provided with a second connecting block 16; a first connecting rod 17 is vertically arranged and penetrates through the first connecting block 15 and the second connecting block 16, and first locking members 19 are positioned at two ends of the first connecting rod 17 and are in threaded connection with the first connecting rod; the first elastic piece 18 is vertically sleeved on the first connecting rod 17 and is connected with the first connecting block 15 and the second connecting block 16;
the third connecting piece 14 is positioned above the second connecting piece 13; the rotating piece 20 is vertically arranged on the third connecting piece 14 and is rotationally connected with the second connecting piece 13; the pressing component is vertically arranged on the third connecting piece 14 and is propped against the second connecting piece 13;
the pressing components are distributed around the rotating component 20 in an annular array and comprise a fixed cylinder 29, an inserted link 30, a limiting component 31, a second elastic component 32 and a pressing component 33; the fixed cylinder 29 is vertically arranged on the second connecting piece 13, and the opening of the fixed cylinder 29 faces downwards; the inserting rod 30 is vertically arranged and inserted into the fixed cylinder 29; the limiting piece 31 is slidably arranged in the fixed cylinder 29 and connected with the inserted link 30; the second elastic element 32 is vertically arranged in the fixed cylinder 29 and connected with the limiting element 31; the pressing piece 33 is arranged on the insert rod 30 and is abutted against the third connecting piece 14; two adjacent insert rods 30 are connected by a fixing rod 28.
In an alternative embodiment, the side of the pressing element 33 facing the second connecting element 13 is provided with an anti-slip layer 34, the anti-slip layer 34 being made of a rubber material. The anti-slip layer 34 significantly improves the friction coefficient of the surface of the pressing member 33, thereby improving the pressing effect.
In an alternative embodiment, the outer walls of the material storage member 2 and the material delivery member 3 are provided with insulating layers 10. The heat preservation layer 10 can obviously reduce the heat exchange between the inside and the outside, avoid the heat loss in the nozzle body 1 and reduce the energy consumption.
In an alternative embodiment, a threaded hole is formed in the storage member 2, an external thread is formed on the delivery member 3, and the delivery member 3 is in threaded connection with the storage member 2, so that the storage member 2 and the delivery member 3 can be conveniently separated, and the inside of the nozzle body 1 can be cleaned and maintained.
In an optional embodiment, the spray head 8 is provided with a ring-shaped part with internal threads, the fixing part 7 is provided with a ring-shaped thread groove, the ring-shaped part is in threaded connection with the fixing part 7, the sealing performance is good, the spray head 8 is convenient to mount and take down, the spray heads 8 with spray holes of different sizes can be replaced as required, and the use is convenient.
In an alternative embodiment, a second retaining member 35 is also included; be equipped with the screw hole on the third connecting piece 14, correspond on the printing apparatus and set up the screw hole, third connecting piece 14 passes through second retaining member 35 threaded connection with the printing apparatus, easy to assemble and take off nozzle device.
The invention also provides a 3D printing method, which comprises the following steps:
s1, selecting a spray head 8 with a spray hole with a certain diameter according to the requirement, and mounting the spray head 8 on the fixing piece 7;
s2, the printing raw material enters the nozzle body 1 through the feeding hose 11;
s3, the first heating piece 4 and the second heating piece 5 convert the electric energy into heat energy, so that the printing raw materials are kept in a melting state;
s4, conveying the printing raw material into the fixing piece 7 by the spiral conveying shaft 6;
s5, the control valve on the fixing member 7 is opened, and the printing material is ejected from the head 8.
When the invention is used, firstly, the spray head 8 with a certain diameter spray hole is selected according to the requirement, and the spray head 8 is arranged on the fixing piece 7; printing raw materials enter the nozzle body 1 through the feeding hose 11; the first heating piece 4 and the second heating piece 5 convert electric energy into heat energy, so that the printing raw materials are kept in a molten state; the spiral conveying shaft 6 conveys printing raw materials into the fixing piece 7, and is also favorable for enabling the printing raw materials to be heated uniformly and to be kept in a melting state; opening a control valve on the fixing part 7, and spraying printing raw materials from a spray head 8;
the threaded pipe 25 is rotated, so that the threaded rod 26 moves and drives the third connecting rod 24 to rotate, and then the nozzle body 1 is driven to rotate correspondingly through the second connecting rod 23, so that the angle of the nozzle body 1 is adjusted; the fixing rod 28 is pulled upwards to ensure that the pressing piece 33 is not abutted against the second connecting piece 13 any more, and at the moment, the second connecting piece 13 can be rotated to adjust the direction of the nozzle body 1; after the direction of the nozzle body 1 is adjusted, the fixing rod 28 is loosened, the second elastic piece 32 is reset, the pressing piece 33 moves downwards, and the pressing piece 33 presses the second connecting piece 13 to fix the second connecting piece 13;
in the using and placing process, when the nozzle body 1 is impacted, the first elastic piece 18 compresses, stretches and resets, so that the impact force can be buffered, and the nozzle body 1 is well protected;
the invention has simple operation and better protection effect, obviously prolongs the service life of the nozzle, is convenient to adjust the direction and the angle of the nozzle, improves the 3D printing efficiency and the printing effect, saves time and labor in printing operation, can also enable the printing raw material to be always in a melting state, and avoids the solidification of the printing raw material to bring adverse effect to the printing process.
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 (10)
1. The 3D printing nozzle device is characterized by comprising a nozzle body (1), a first connecting piece (12), a second connecting piece (13), a third connecting piece (14), a first connecting rod (17), a first elastic piece (18), a first locking piece (19), a rotating piece (20), a connecting plate (21), a rotating rod (22), a second connecting rod (23), a third connecting rod (24), a threaded pipe (25), a threaded rod (26), a fixing plate (27) and a pressing assembly;
the nozzle body (1) comprises a material storage piece (2), a material conveying piece (3), a spiral conveying shaft (6), a fixing piece (7), a spray head (8) and a feeding hose (11); the material storage piece (2) is provided with a first heating piece (4) and a material storage cavity; the feeding hose (11) is arranged on the material storage piece (2) and is communicated with the material storage cavity; the material conveying part (3) is arranged on the material storage part (2), and a material conveying hole (9) for raw materials to pass through is formed in the material conveying part (3); the material conveying part (3) is provided with a second heating part (5) and a material conveying cavity is arranged inside the material conveying part; the spiral conveying shaft (6) is arranged on the conveying part (3) and is positioned in the conveying cavity; the fixing piece (7) is arranged at the bottom of the material conveying piece (3), and the fixing piece (7) is provided with a control valve; the spray head (8) is arranged on the fixing piece (7);
the connecting plate (21) is arranged on the first connecting piece (12), and the nozzle body (1) is rotatably connected with the connecting plate (21) through a rotating rod (22); the fixing plate (27) is vertically arranged on the first connecting piece (12), and the threaded pipe (25) is rotatably arranged on the fixing plate (27); one end of the threaded rod (26) is in threaded connection with the threaded pipe (25), and the other end of the threaded rod is connected with the third connecting rod (24); the second connecting rod (23) is arranged on the nozzle body (1), and the third connecting rod (24) is connected with the first connecting piece (12) and the second connecting rod (23);
the second connecting piece (13) is positioned above the first connecting piece (12), the first connecting piece (12) is provided with a first connecting block (15), and the second connecting piece (13) is provided with a second connecting block (16); the first connecting rod (17) is vertically arranged and penetrates through the first connecting block (15) and the second connecting block (16), and the first locking piece (19) is positioned at two ends of the first connecting rod (17) and is in threaded connection with the first connecting rod; the first elastic piece (18) is vertically sleeved on the first connecting rod (17) and is connected with the first connecting block (15) and the second connecting block (16);
the third connecting piece (14) is positioned above the second connecting piece (13); the rotating piece (20) is vertically arranged on the third connecting piece (14) and is rotationally connected with the second connecting piece (13); the pressing component is vertically arranged on the third connecting piece (14) and is propped against the second connecting piece (13).
2. A 3D printing nozzle device according to claim 1, wherein the hold down assemblies are distributed in an annular array around the rotating member (20).
3. The 3D printing nozzle device according to claim 1, wherein the pressing assembly comprises a fixed cylinder (29), an insert rod (30), a limiting piece (31), a second elastic piece (32) and a pressing piece (33);
the fixed cylinder (29) is vertically arranged on the second connecting piece (13), and the opening of the fixed cylinder (29) faces downwards; the inserting rod (30) is vertically arranged and is inserted into the fixed cylinder (29); the limiting piece (31) is arranged in the fixed cylinder (29) in a sliding manner and is connected with the inserted link (30); the second elastic piece (32) is vertically arranged in the fixed cylinder (29) and is connected with the limiting piece (31); the pressing piece (33) is arranged on the insert rod (30) and is abutted against the third connecting piece (14).
4. The 3D printing nozzle device according to claim 1, further comprising a fixing bar (28); two adjacent inserted bars (30) are connected through a fixed bar (28).
5. A 3D printing nozzle device according to claim 1, characterized in that the side of the pressing piece (33) facing the second connecting piece (13) is provided with an anti-slip layer (34).
6. The 3D printing nozzle device according to claim 1, wherein the outer walls of the storage member (2) and the delivery member (3) are provided with insulating layers (10).
7. The 3D printing nozzle device according to claim 1, wherein the storage member (2) is provided with a threaded hole, the feeding member (3) is provided with an external thread, and the feeding member (3) is in threaded connection with the storage member (2).
8. A 3D printing nozzle device according to claim 1, characterized in that the nozzle head (8) is provided with a ring member with internal thread, the fixing member (7) is provided with a ring thread groove, and the ring member is in threaded connection with the fixing member (7).
9. A 3D printing nozzle device according to claim 1, characterized by further comprising a second locking member (35); and a threaded hole is formed in the third connecting piece (14), a threaded hole is correspondingly formed in the printing equipment, and the third connecting piece (14) is in threaded connection with the printing equipment through a second locking piece (35).
10. The 3D printing nozzle device according to any of claims 1-9 further proposes a 3D printing method, characterized by comprising the following steps:
s1, selecting a spray head (8) with a spray hole with a certain diameter according to the requirement, and mounting the spray head (8) on the fixing piece (7);
s2, the printing raw material enters the nozzle body (1) through the feeding hose (11);
s3, the first heating piece (4) and the second heating piece (5) convert electric energy into heat energy, so that the printing raw materials are kept in a molten state;
s4, conveying the printing raw material into the fixing piece (7) by the spiral conveying shaft (6);
s5, opening the control valve on the fixing piece (7) and ejecting the printing raw material from the ejection head (8).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2019107004985 | 2019-07-31 | ||
| CN201910700498.5A CN110271190A (en) | 2019-07-31 | 2019-07-31 | 3D printing nozzle device and printing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111645322A true CN111645322A (en) | 2020-09-11 |
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Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910700498.5A Withdrawn CN110271190A (en) | 2019-07-31 | 2019-07-31 | 3D printing nozzle device and printing method |
| CN202010743498.6A Pending CN111645322A (en) | 2019-07-31 | 2020-07-29 | 3D printing nozzle device and printing method |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910700498.5A Withdrawn CN110271190A (en) | 2019-07-31 | 2019-07-31 | 3D printing nozzle device and printing method |
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| CN (2) | CN110271190A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112916882B (en) * | 2021-01-23 | 2022-04-12 | 大连理工大学 | Anti-collision additive manufacturing deposition head |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203917224U (en) * | 2014-04-30 | 2014-11-05 | 中冶南方工程技术有限公司 | A kind of Wedge type nozzle angle adjusting device |
| CN107498847A (en) * | 2017-06-27 | 2017-12-22 | 董成田 | Print head assembly and Method of printing, 3D printer |
| CN207564976U (en) * | 2017-10-12 | 2018-07-03 | 青岛三迪时空网络科技有限公司 | A kind of rotatable 3D printer nozzle |
| CN207633857U (en) * | 2017-10-27 | 2018-07-20 | 甘肃筑盾人防工程有限公司 | A kind of fire fire-fighting separation net of Fast Installation |
| CN208237358U (en) * | 2018-03-05 | 2018-12-14 | 海东市海拉特科技有限公司 | A kind of fixation device of LCD TV receiver of remote-control sytem |
| CN109334005A (en) * | 2018-12-10 | 2019-02-15 | 衢州学院 | A kind of multiinjector 3D printer |
| KR20190019278A (en) * | 2017-08-17 | 2019-02-27 | 군산대학교산학협력단 | 3D Printer nozzle |
| CN208615299U (en) * | 2018-07-20 | 2019-03-19 | 纳琳威纳米科技南通有限公司 | Film clamping device |
| CN109822885A (en) * | 2019-02-26 | 2019-05-31 | 江西省科学院能源研究所 | A kind of 3D printing ejecting device convenient for plastic molten melt conveying |
-
2019
- 2019-07-31 CN CN201910700498.5A patent/CN110271190A/en not_active Withdrawn
-
2020
- 2020-07-29 CN CN202010743498.6A patent/CN111645322A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203917224U (en) * | 2014-04-30 | 2014-11-05 | 中冶南方工程技术有限公司 | A kind of Wedge type nozzle angle adjusting device |
| CN107498847A (en) * | 2017-06-27 | 2017-12-22 | 董成田 | Print head assembly and Method of printing, 3D printer |
| KR20190019278A (en) * | 2017-08-17 | 2019-02-27 | 군산대학교산학협력단 | 3D Printer nozzle |
| CN207564976U (en) * | 2017-10-12 | 2018-07-03 | 青岛三迪时空网络科技有限公司 | A kind of rotatable 3D printer nozzle |
| CN207633857U (en) * | 2017-10-27 | 2018-07-20 | 甘肃筑盾人防工程有限公司 | A kind of fire fire-fighting separation net of Fast Installation |
| CN208237358U (en) * | 2018-03-05 | 2018-12-14 | 海东市海拉特科技有限公司 | A kind of fixation device of LCD TV receiver of remote-control sytem |
| CN208615299U (en) * | 2018-07-20 | 2019-03-19 | 纳琳威纳米科技南通有限公司 | Film clamping device |
| CN109334005A (en) * | 2018-12-10 | 2019-02-15 | 衢州学院 | A kind of multiinjector 3D printer |
| CN109822885A (en) * | 2019-02-26 | 2019-05-31 | 江西省科学院能源研究所 | A kind of 3D printing ejecting device convenient for plastic molten melt conveying |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110271190A (en) | 2019-09-24 |
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Application publication date: 20200911 |