CN203817392U - Extrusion type metal flow 3D printer - Google Patents
Extrusion type metal flow 3D printer Download PDFInfo
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- CN203817392U CN203817392U CN201420250377.8U CN201420250377U CN203817392U CN 203817392 U CN203817392 U CN 203817392U CN 201420250377 U CN201420250377 U CN 201420250377U CN 203817392 U CN203817392 U CN 203817392U
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- steel nozzle
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Abstract
The utility model discloses an extrusion type metal flow 3D printer which comprises a machine frame, a printing device and a feeding device. The machine frame is provided with a workbench and a machine head, wherein the workbench can move in the X-axis direction and the Y-axis direction, and the machine head can move in the Z-axis direction. The printing device comprises a printing head, a high-frequency coil and a high-frequency electric induction heating device, wherein the printing head comprises a tungsten steel nozzle, a ceramic tube set, a high-temperature resistance ceramic protection sleeve and a stainless steel end cover, and the tungsten steel nozzle is provided with an extrusion opening. At least one laser is installed on the surface of the lower end of the machine head, wherein the laser is used for locally preheating and melting metal layers molded by printing metal wires or is used for reinforcing the bonding force between the metal layers. The machine frame is further provided with an inert gas supply device used for supplying inert gas to the printing head so that the printing head can spray out the inert gas. The extrusion type metal flow 3D printer is simple in structure, low in cost, and capable of locally preheating and melting the metal layers molded by printing the metal wires or reinforcing the bonding force between the metal layers, thereby greatly improving the printing effect and the model molding effect.
Description
Technical field:
The utility model relates to 3D printer technology field, refer in particular to a kind of simple in structure, cost is low, and can carry out local preheating's melting or for adhesion between reinforcement metal layer to the metal level with metal wire rod printing shaping, so that greatly improve the extruded type metal flow 3D printer of printing effect and model forming effect.
Background technology:
3D printer, i.e. a kind of machine of RP technique, it is a kind ofly to take mathematical model file as basis, uses powdery metal or the plastics etc. can jointing material, carrys out the technology of constructed object by the mode of successively printing.Past, its field such as mould manufacture, industrial design of being everlasting was used to modeling, existing just gradually for the direct manufacture of some engineering goods, meaned that this technology is universal.
The design process that 3D prints is: first by computer, carry out software modeling, then by the threedimensional model building up " anatomys " one-tenth cross section successively, i.e. and tangent plane, thus instruct printer successively to print, and slim aspect is stacked up, until a solid body moulding.The difference of multi-functional 3D printer and conventional printer maximum is: " ink " that it uses is out and out raw material.Described raw material are generally hot melt tree lace, insert in the hot melt printing head of 3D printer the end of this hot melt tree lace, and hot melt printing head heats to realize by energising hot melt tree lace is carried out to melting, glue through melting flows out from hot melt printing head lower end, successively print, and slim aspect is stacking to realize solid-state three-dimensional body moulding.
Current 3D printer is widely used in forming plastic cement model, and the 3D printer that is applied to forming metal model is less, and the metal pattern of the 3D printer moulding that this forming metal model is used is undesirable aspect precision and surface smoothness, and total is very complicated, cost is higher.
In view of this, the inventor proposes following technical scheme.
Utility model content:
The purpose of this utility model is to overcome the deficiencies in the prior art, provide a kind of simple in structure, cost is low, and can carry out local preheating's melting or for adhesion between reinforcement metal layer to the metal level with metal wire rod printing shaping, so that greatly improve the extruded type metal flow 3D printer of printing effect and model forming effect.
In order to solve the problems of the technologies described above, the utility model has adopted following technical proposals: this extruded type metal flow 3D printer comprises: a frame, is provided with a workbench that can move along X-direction and Y direction and the head that can move along Z-direction in this frame; One printing equipment, it comprises: by a connecting seat, be installed on the printhead in head, high frequency coil and the high-frequency electrical induction heater for printhead is heated, this printhead comprises: a wolfram steel nozzle, the earthenware group that is arranged at wolfram steel nozzle interior, the refractory ceramics protective sleeve that is nested in wolfram steel nozzle outer surface and cover are placed on the stainless steel end cap of wolfram steel upper end of nozzle, and this wolfram steel nozzle has an extrusion cavities; One for the pay-off to printing equipment transferring metal wire rod, and this pay-off is installed in frame; Described head rear surface is provided with at least one and for the metal level to by metal wire rod printing shaping, carries out local preheating's melting or for the laser instrument of adhesion between reinforcement metal layer, this laser instrument is to tilt assembling, and laser instrument outgoing beam focuses on the below of printhead; Printhead in described frame, is also provided with one for providing inert gas to printhead, so that can spray the inert gas feeder of inert gas.
Furthermore, in technique scheme, described laser instrument is fiber coupled laser, and the quantity of this fiber coupled laser is two, and it is arranged at respectively printhead both sides, and wherein, this laser instrument outgoing beam joining is positioned under printhead.
Furthermore, in technique scheme, described pay-off comprises: be arranged at frame top for place the wire tray of metallic wire coil and for the first servomotor of driving wire tray to rotate, be arranged at the second servomotor of head and the wire seat that is arranged at the second servomotor front end, wherein, in wire seat, be provided with initiatively Wire Wheel of a fabric wheel and, initiatively Wire Wheel coordinates transmission metal wire rod with fabric wheel.
Furthermore, in technique scheme, described wire seat middle part has a position, hole, and this wire seat one side is provided with the elasticity mount pad of an adjustable displacement; Described fabric wheel is installed in this elasticity mount pad, and its outer is revealed in Kong Weizhong; Described active Wire Wheel is installed in the rotating shaft of the second servomotor, and this active Wire Wheel is revealed in Kong Weizhong, and and fabric wheel between be formed with the gap of transmitting metal wire rod for clamping; Described wire seat upper end and lower end are respectively arranged with through hole position, and the perforation corresponding with this gap; This perforation is corresponding with the hole of passing for metal wire rod in described printhead; Described fabric wheel outer surface forms for clamping the cannelure of metal wire rod.
Furthermore, in technique scheme, described inert gas feeder comprises: be installed on gas tank, control valve and the wireway in frame outside, this wireway stretches in head, and with being communicated with for spraying the Cooling Holes of inert gas of arranging in printhead; Described Connection Block front end is provided with one for the screens with described printhead installation, and this Connection Block rear end is provided with forward the gas port that is communicated with this screens, and this gas port is communicated with wireway.
Furthermore, in technique scheme, described wolfram steel upper end of nozzle is provided with a ring-type installation position, lower end forms a collar flange, and this collar flange lower end forms a tapered end, this tapered end has described extrusion cavities, and the aperture of this extrusion cavities is less than the diameter of metal wire rod.
Furthermore, in technique scheme, described earthenware group comprises: mutually nested assembling is also installed on interior earthenware and the outer earthenware in the accommodating position arranging in wolfram steel nozzle chamber, wherein, the upper surface of interior earthenware and the upper surface of outer earthenware flush, stretch out outside outer earthenware lower surface the lower end of interior earthenware, and dock with the extrusion cavities of described wolfram steel nozzle; Between described interior earthenware outer wall and outer earthenware inwall, be formed with the first gap; In outer earthenware outer wall and wolfram steel nozzle, between the inwall of accommodating position, be formed with the second gap; In described stainless steel end cap, be provided with the entrance hole corresponding with interior earthenware.
Furthermore, in technique scheme, described refractory ceramics protective sleeve is nested in wolfram steel nozzle outer surface, and with the collar flange of wolfram steel nozzle lower end against; Wherein, between refractory ceramics protective sleeve and wolfram steel nozzle outer wall, be formed with the passage that some supplied gas flow through, that collar flange place, wolfram steel nozzle lower end is provided with some and this channel connection and be skewed gas squit hole; Described refractory ceramics protective sleeve inwall lower end arranges the avoiding hollow groove coordinating with gas squit hole.
Furthermore, in technique scheme, described wolfram steel nozzle forms spaced the first annular protrusion of some mutual formation in below, ring-type installation position, this wolfram steel nozzle lower end forms some second annular protrusions corresponding with this first annular protrusion, makes described refractory ceramics protective sleeve nested, concentric after wolfram steel nozzle outer surface, form described passage; Described wolfram steel nozzle offers some air slots downwards in ring-type installation position below, makes ring-type installation position and described channel connection, and wherein, described the first annular protrusion is between adjacent two air slots.
Furthermore, in technique scheme, be also provided with water cooling plant in described frame, be formed with the passage passing through for cold water in the copper pipe of described high frequency coil, water cooling plant connects this passage by pipeline.
Adopt after technique scheme, the utility model has following beneficial effect compared with prior art:
1, the utility model is provided with two laser instruments with printhead adaptation in head lower end, it is arranged at respectively printhead both sides, and this laser instrument outgoing beam joining is positioned under printhead, laser instrument can carry out local preheating's melting or for adhesion between reinforcement metal layer to the metal level by metal wire rod printing shaping, so that can improve printing effect of the present utility model and model forming effect, be conducive to improve the market competitiveness.
2, simple in structure, the low cost of manufacture of the utility model, is conducive to improve the market competitiveness.
3, the utility model is provided with water cooling plant, and the copper pipe of its heater coil is formed with the passage that cooling water flows through, so that itself there is higher cooling effect, and to improve service life of the present utility model and printing effect.
4, in the utility model, be provided with inert gas feeder, so that can spray inert gas during printhead work, oxidized when effectively preventing that the metal fluid of printhead ejection from forming metal stack lamination on workbench, can also effectively to metal fluid, play the effect of cooling forming, can effectively improve work quality of the present utility model like this, to produce superior in quality metal pattern product.
5, the open heating collar of installing due to wolfram steel nozzle lower end only heats wolfram steel nozzle lower end, in addition, because earthenware group has certain effect of heat insulation, can effectively prevent from being too early heated to soften through the metal wire rod in earthenware group, the metal wire rod that only penetrates interior earthenware lower end just can be heated and be semisolid, be conducive to like this metal wire rod in transport process, can utilize solid-state metal wire rod that melting is formed to semi-solid metal fluid extrudes from the extrusion cavities of wolfram steel nozzle lower end, form a kind of thread semi-solid-state metal fluid continuously, so that improve printing (extruding) effect of printhead.
Accompanying drawing explanation:
Fig. 1 is stereogram of the present utility model;
Fig. 2 is the local enlarged diagram of A part in Fig. 1;
Fig. 3 is the stereogram at another visual angle of the utility model;
Fig. 4 is that the utility model is removed the stereogram after outer cover and inert gas feeder;
Fig. 5 is the assembling schematic diagram of printhead in the utility model;
Fig. 6 is the cutaway view of Fig. 5;
Fig. 7 is the assembling schematic diagram of printhead in the utility model;
Fig. 8 is the assembling schematic diagram of wolfram steel nozzle in the utility model;
The specific embodiment:
Below in conjunction with specific embodiments and the drawings, the utility model is further illustrated.
Shown in Fig. 1-8, for a kind of extruded type metal flow 3D printer, it comprises: a frame 1, in the assembling mode that can move along X-direction and Y direction, be installed on workbench 2 in frame 1, in the assembling mode that can move along Z-direction, be installed on head 3 in frame 1, be installed on printing equipment 4 in head 3, be installed in frame 1 and for printing equipment 4 being transmitted to the pay-off 5 of metal wire rods, be also provided with outer cover 11 in frame 1.
Described printing equipment 4 comprises: by a connecting seat 41, be installed on the printhead 42 in head 3, high frequency coil 43 and the high-frequency electrical induction heater 44 for printhead 42 is heated; this printhead 42 comprises: a wolfram steel nozzle 46, the earthenware group 47 that is arranged at wolfram steel nozzle 46 inside, the refractory ceramics protective sleeve 48 that is nested in wolfram steel nozzle 47 outer surfaces and cover are placed on the stainless steel end cap 49 of wolfram steel nozzle 46 upper ends, and this wolfram steel nozzle 46 has an extrusion cavities 464.
Described wolfram steel nozzle 46 upper ends are provided with a ring-type installation position 461, lower end forms a collar flange 462, and these collar flange 462 lower ends form a tapered end 463, this tapered end 463 has described extrusion cavities 464, and the aperture of this extrusion cavities 464 is less than the diameter of metal wire rod.
Described earthenware group 47 comprises: mutually nested assembling is also installed on interior earthenware 471 and the outer earthenware 472 in the accommodating position 460 arranging in wolfram steel nozzle 46 inner chambers, wherein, the upper surface of the upper surface of interior earthenware 471 and outer earthenware 472 flushes, stretch out outside outer earthenware 472 lower surfaces the lower end of interior earthenware 471, and dock with the extrusion cavities 464 of described wolfram steel nozzle 46; In described stainless steel end cap 49, be provided with the entrance hole 491 corresponding with interior earthenware 471.
Between described interior earthenware 471 outer walls and outer earthenware 472 inwalls, be formed with the first gap, in outer earthenware 472 outer walls and wolfram steel nozzle 46, between the inwall of accommodating position 460, be formed with the second gap, make whole earthenware group 47 there is certain effect of heat insulation, can effectively prevent from can not being heated formation molten condition through the metal wire rod major part in earthenware group 47, be conducive to like this metal wire rod in transport process, can utilize solid-state metal wire rod below constantly down to transmit, so that constantly melting being formed to semi-solid metal fluid extrudes from the extrusion cavities of wolfram steel nozzle lower end, form a kind of thread semi-solid-state metal fluid continuously, so that improve printing (extruding) effect of printhead.
Described refractory ceramics protective sleeve 48 is nested in wolfram steel nozzle 46 outer surfaces, and with the collar flange 462 of wolfram steel nozzle 46 lower ends against; Wherein, between refractory ceramics protective sleeve 48 and wolfram steel nozzle 46 outer walls, be formed with the passage that some supplied gas flow through, that wolfram steel nozzle 46 lower end collar flange 462 places are provided with some and this channel connection and be skewed gas squit hole 465; Described refractory ceramics protective sleeve 48 inwall lower ends arrange the avoiding hollow groove 482 coordinating with gas squit hole 465.
Described inert gas feeder 6 comprises: be installed on gas tank 61, control valve 62 and the wireway in frame 1 outside, this wireway stretches in head 3, and with being communicated with for spraying the gas squit hole 465 of inert gas of arranging in printhead 42.Particularly, described Connection Block 41 front ends are provided with one for the screens 411 with described printhead 42 installations, and form stable assembling by this screens 411 and the ring-type installation position 461 in wolfram steel nozzle 46.These Connection Block 41 rear ends are provided with forward the gas port 412 that is communicated with this screens 411, this gas port 412 is communicated with wireway, so that gas squit hole 465 conductings of gas port and wolfram steel nozzle 46 lower ends, make gas squit hole 465 can spray inert gas in whole printhead prints process, oxidized while forming metal stack lamination on workbench effectively to prevent semi-solid-state metal fluid that printhead is extruded, can also effectively to metal fluid, play the effect of cooling forming, can effectively improve the work quality of this whole 3D printer like this, to produce superior in quality metal pattern product.
Described inert gas comprises argon gas, helium, carbon dioxide or its mist etc.
Described wolfram steel nozzle 46 forms spaced the first annular protrusion 467 of some mutual formation in 461 belows, ring-type installation position, these wolfram steel nozzle 46 lower ends form some second annular protrusions 468 corresponding with this first annular protrusion 467, make described refractory ceramics protective sleeve 48 nested, concentric after wolfram steel nozzle 46 outer surfaces, form described passage; Described wolfram steel nozzle 46 offers some air slots 469 downwards in 461 belows, ring-type installation position, makes ring-type installation position 461 and described channel connection, and wherein, described the first annular protrusion 468 is between adjacent two air slots 469.
The accommodating position 460 of described wolfram steel nozzle 46 inside comprises: the first accommodating position 4601 for accommodating outer earthenware 472 of being offered downwards by wolfram steel nozzle 46 upper surfaces and be positioned at the first 4601 bottoms, accommodating position and for the second accommodating position 4602 for accommodating earthenware 471, wherein, the second accommodating position 4602 is communicated with described extrusion cavities 464, and first accommodating 4601 bottom and second accommodating 4602 bottom are all coniform.
Described head 3 lower ends are provided with one for controlling the temperature controller 7 of the heating power of described high-frequency electrical induction heater 44, and this temperature controller 7 comprises an infrared thermometry probe, the bottom of this infrared thermometry alignment probe printhead 42.Printhead 42 temperature values that detect when infrared ray temperature probe during lower than setting value, are controlled high-frequency electrical induction heater 44 and are improved heating powers, and printhead 42 is normally worked; Printhead 42 temperature values that detect when infrared ray temperature probe during higher than setting value, are controlled high-frequency electrical induction heater 31 and are reduced heating powers, and printhead 33 is normally worked.
The utility model adopts high-frequency electrical induction heater 44 to coordinate 43 pairs of printheads 42 of high frequency coil to heat, and pop one's head in and detect the temperature of printhead 42 constantly by infrared thermometry, so that can effectively control heating-up temperature, to reach temperature stabilization, energy-conservation effect, it is high that it also has heating-up temperature, controlled range is wide, cost is low, advantages of simple structure and simple.
Described high frequency coil 43 front ends have an open heating collar 431, and clamp wolfram steel nozzle 46 lower ends by this open heating collar 431, because 431 of open heating collars heat wolfram steel nozzle 46 lower ends, the metal wire rod that makes to penetrate interior earthenware 471 lower ends just can be heated and be semisolid fluid, rather than the metal wire rod that penetrates interior earthenware 471 is softening too early, be conducive to like this metal wire rod in transport process, can utilize solid-state metal wire rod that melting is formed to semi-solid metal fluid extrudes from the extrusion cavities of wolfram steel nozzle lower end, form a kind of thread semi-solid-state metal fluid continuously, so that improve printing (extruding) effect of printhead.
Described head 3 rear surfaces are provided with at least one and for the metal level to by metal wire rod printing shaping, carry out local preheating's melting or for the laser instrument 31 of adhesion between reinforcement metal layer, this laser instrument 31 is to tilt assembling, and laser instrument 31 outgoing beams focus on the below of printhead 42.Particularly, head lower end is provided with two laser instruments with printhead adaptation, it is arranged at respectively printhead both sides, and this laser instrument outgoing beam joining is positioned under printhead, laser instrument can carry out local preheating's melting or for adhesion between reinforcement metal layer to the metal level by metal wire rod printing shaping, so that can improve printing effect of the present utility model and model forming effect, be conducive to improve the market competitiveness.
Above-mentioned laser instrument 31 is fiber coupled laser.
Described pay-off 5 comprises: be arranged at frame 1 top for place the wire tray 51 of metallic wire coil and for the first servomotor 52 of driving wire tray 51 to rotate, be arranged at the second servomotor 53 of head 3 and the wire seat 54 that is arranged at the second servomotor 53 front ends, wherein, in wire seat 54, be provided with initiatively Wire Wheel 531 of a fabric wheel 55 and, initiatively Wire Wheel 531 coordinates transmission metal wire rod with fabric wheel 55, wherein, described fabric wheel 55 outer surfaces form for clamping the cannelure of metal wire rod.
Described wire seat 54 middle parts have a position, hole 541, and these wire seat 541 1 sides are provided with the elasticity mount pad 542 of an adjustable displacement; Described fabric wheel 55 is installed in this elasticity mount pad 542, and its outer is revealed in position, hole 541; Described active Wire Wheel 531 is installed in the rotating shaft of the second servomotor 53, and this active Wire Wheel 531 is revealed in position, hole 541, and and fabric wheel 55 between be formed with the gap of transmitting metal wire rod for clamping; Described wire seat 54 upper ends and lower end are respectively arranged with through hole position 541, and the perforation corresponding with this gap; This perforation is corresponding with the hole of passing for metal wire rod in described printhead 42.
In described frame 1, be also provided with water cooling plant 7, be formed with the runner passing through for cold water in the copper pipe of described high frequency coil 43, water cooling plant 7 connects this runner by pipeline.
The utility model adopts semi-solid casting (moulding) technology, and the difference of itself and conventional cast technology is:
In conventional cast process, primary crystal is grown up in dendrite mode, and when solid rate reaches 20%-30%, dendrite just forms contiguous network skeleton, and mobility will disappear substantially due to the formed grid structure of the solid phase of first solidifying.
In semi-solid casting process, because the pouring temperature of semi-solid metal slurry is controlled in solid-liquid two-phase region, solid phase in slurry is suspended in liquid matrix with torulose non-dendritic structure form, make melt there is good rheological characteristic and thixotropy, when its solid rate reaches 40%-60%, still there is good mobility, thereby can utilize conventional forming technology to realize the shaping of metal as die casting, extruding, die forging etc.
Above-mentioned metal flow refers to that a kind of extrusion cavities 464 is extruded from wolfram steel nozzle 46 is continuously thread and is semi-solid metal fluid.
Certainly, the foregoing is only specific embodiment of the utility model, be not to limit the utility model practical range, all according to equivalence variation or modification that described in the utility model claim, structure, feature and principle are done, all should be included in the utility model claim.
Claims (10)
1. extruded type metal flow 3D printer, is characterized in that: comprising:
One frame (1), is provided with a workbench (2) that can move along X-direction and Y direction and the head (3) that can move along Z-direction in this frame (1);
One printing equipment (4), it comprises: by a connecting seat (41), be installed on the printhead (42) in head (3), for high frequency coil (43) and the high-frequency electrical induction heater (44) that printhead (42) is heated, this printhead (42) comprising: a wolfram steel nozzle (46), be arranged at the inner earthenware group (47) of wolfram steel nozzle (46), be nested in the refractory ceramics protective sleeve (48) of wolfram steel nozzle (47) outer surface and the stainless steel end cap (49) that cover is placed on wolfram steel nozzle (46) upper end, this wolfram steel nozzle (46) has an extrusion cavities (464),
One for the pay-off (5) to printing equipment (4) transferring metal wire rod, and this pay-off (5) is installed in frame (1);
Described head (3) rear surface is provided with at least one and for the metal level to by metal wire rod printing shaping, carries out local preheating's melting or for the laser instrument (31) of adhesion between reinforcement metal layer, this laser instrument (31) is to tilt assembling, and laser instrument (31) outgoing beam focuses on the below of printhead (42); Printhead (42) in described frame (1), is also provided with one for providing inert gas to printhead (42), so that can spray the inert gas feeder (6) of inert gas.
2. extruded type metal flow 3D printer according to claim 1, it is characterized in that: described laser instrument (31) is fiber coupled laser, the quantity of this fiber coupled laser is two, it is arranged at respectively printhead (42) both sides, wherein, this laser instrument (31) outgoing beam joining is positioned under printhead (42).
3. extruded type metal flow 3D printer according to claim 1, it is characterized in that: described pay-off (5) comprising: be arranged at frame (1) top for placing wire tray (51) and first servomotor (52) for driving wire tray (51) to rotate of metallic wire coil, the wire seat (54) that is arranged at the second servomotor (53) in head (3) and is arranged at the second servomotor (53) front end, wherein, in wire seat (54), be provided with initiatively Wire Wheel (531) of a fabric wheel (55) and, initiatively Wire Wheel (531) coordinates transmission metal wire rod with fabric wheel (55).
4. extruded type metal flow 3D printer according to claim 3, it is characterized in that: described wire seat (54) middle part has a position, hole (541), and these wire seat (541) one sides are provided with the elasticity mount pad (542) of an adjustable displacement; Described fabric wheel (55) is installed in this elasticity mount pad (542), and its outer is revealed in position, hole (541); Described active Wire Wheel (531) is installed in the rotating shaft of the second servomotor (53), this active Wire Wheel (531) is revealed in position, hole (541), and and fabric wheel (55) between be formed with the gap of transmitting metal wire rod for clamping; Described wire seat (54) upper end and lower end are respectively arranged with through hole position (541), and the perforation corresponding with this gap; This perforation is corresponding with the hole of passing for metal wire rod in described printhead (42); Described fabric wheel (55) outer surface forms for clamping the cannelure of metal wire rod.
5. extruded type metal flow 3D printer according to claim 1, it is characterized in that: described inert gas feeder (6) comprising: the gas tank (61), control valve (62) and the wireway that are installed on frame (1) outside, this wireway stretches in head (3), and with being communicated with for spraying the Cooling Holes of inert gas of arranging in printhead (42); Described Connection Block (41) front end is provided with one for the screens (411) with described printhead (42) installation, this Connection Block (41) rear end is provided with forward the gas port (412) that is communicated with this screens (411), and this gas port (412) is communicated with wireway.
6. extruded type metal flow 3D printer according to claim 1, it is characterized in that: described wolfram steel nozzle (46) upper end is provided with a ring-type installation position (461), lower end forms a collar flange (462), and this collar flange (462) lower end forms a tapered end (463), this tapered end (463) has described extrusion cavities (464), and the aperture of this extrusion cavities (464) is less than the diameter of metal wire rod.
7. extruded type metal flow 3D printer according to claim 6, it is characterized in that: described earthenware group (47) comprising: mutually nested assembling is also installed on interior earthenware (471) and the outer earthenware (472) in the accommodating position (460) arranging in wolfram steel nozzle (46) inner chamber, wherein, the upper surface of the upper surface of interior earthenware (471) and outer earthenware (472) flushes, stretch out outside outer earthenware (472) lower surface the lower end of interior earthenware (471), and dock with the extrusion cavities (464) of described wolfram steel nozzle (46); Between described interior earthenware (471) outer wall and outer earthenware (472) inwall, be formed with the first gap; In outer earthenware (472) outer wall and wolfram steel nozzle (46), between the inwall of accommodating position (460), be formed with the second gap; In described stainless steel end cap (49), be provided with the entrance hole (491) corresponding with interior earthenware (471).
8. extruded type metal flow 3D printer according to claim 7, it is characterized in that: described refractory ceramics protective sleeve (48) is nested in wolfram steel nozzle (46) outer surface, and with the collar flange (462) of wolfram steel nozzle (46) lower end against; Wherein, between refractory ceramics protective sleeve (48) and wolfram steel nozzle (46) outer wall, be formed with the passage that some supplied gas flow through, that wolfram steel nozzle (46) lower end collar flange (462) locates to be provided with some and this channel connection and be skewed gas squit hole (465); Described refractory ceramics protective sleeve (48) inwall lower end arranges the avoiding hollow groove (482) coordinating with gas squit hole (465).
9. extruded type metal flow 3D printer according to claim 8, it is characterized in that: described wolfram steel nozzle (46) forms spaced the first annular protrusion of some mutual formation (467) in ring-type installation position (461) below, this wolfram steel nozzle (46) lower end forms some second annular protrusions (468) corresponding with this first annular protrusion (467), makes described refractory ceramics protective sleeve (48) nested, concentric after wolfram steel nozzle (46) outer surface, form described passage; Described wolfram steel nozzle (46) offers some air slots (469) downwards in ring-type installation position (461) below, make ring-type installation position (461) and described channel connection, wherein, described the first annular protrusion (468) is positioned between adjacent two air slots (469).
10. according to the extruded type metal flow 3D printer described in claim 1-9 any one, it is characterized in that: in described frame (1), be also provided with water cooling plant (7), in the copper pipe of described high frequency coil (43), be formed with the runner passing through for cold water, water cooling plant (7) connects this runner by pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420250377.8U CN203817392U (en) | 2014-05-15 | 2014-05-15 | Extrusion type metal flow 3D printer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420250377.8U CN203817392U (en) | 2014-05-15 | 2014-05-15 | Extrusion type metal flow 3D printer |
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| CN203817392U true CN203817392U (en) | 2014-09-10 |
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| CN201420250377.8U Withdrawn - After Issue CN203817392U (en) | 2014-05-15 | 2014-05-15 | Extrusion type metal flow 3D printer |
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| CN104646670A (en) * | 2015-03-06 | 2015-05-27 | 沈湧 | High-frequency induction melting type metal 3D (three-dimensional) printing machine |
| CN105172134A (en) * | 2015-07-15 | 2015-12-23 | 东莞中国科学院云计算产业技术创新与育成中心 | Method for achieving 3D printing in space environment, printing system and spray wire flow control method |
| CN105880598A (en) * | 2016-06-03 | 2016-08-24 | 梁福鹏 | Metal three-dimensional printing method and equipment thereof |
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| CN105931810A (en) * | 2016-06-27 | 2016-09-07 | 杨林娣 | Power transformer |
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2014
- 2014-05-15 CN CN201420250377.8U patent/CN203817392U/en not_active Withdrawn - After Issue
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| WO2016154931A1 (en) * | 2015-03-31 | 2016-10-06 | 深圳市圆梦精密技术研究院 | Compound 3d printing device for electron beam melting and cutting |
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| US10994371B2 (en) | 2016-02-24 | 2021-05-04 | Mitsubishi Electric Research Laboratories, Inc. | System and method for depositing a metal to form a three-dimensional part |
| CN105880598A (en) * | 2016-06-03 | 2016-08-24 | 梁福鹏 | Metal three-dimensional printing method and equipment thereof |
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| CN112658286A (en) * | 2020-12-02 | 2021-04-16 | 北京石油化工学院 | Melting extrusion nozzle for 3D printing of metal |
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