CN103182840A - Micro injector type multi-spray-head three-dimensional printing machine - Google Patents
Micro injector type multi-spray-head three-dimensional printing machine Download PDFInfo
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- CN103182840A CN103182840A CN2011104532827A CN201110453282A CN103182840A CN 103182840 A CN103182840 A CN 103182840A CN 2011104532827 A CN2011104532827 A CN 2011104532827A CN 201110453282 A CN201110453282 A CN 201110453282A CN 103182840 A CN103182840 A CN 103182840A
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Abstract
The invention discloses a micro injector type multi-spray-head three-dimensional printing machine which can simultaneously use various kinds of fluid materials to print work pieces. The micro injector type multi-spray-head three-dimensional printing machine is provided with an automatic feed system, can continuously work for a long time and can manufacture large work pieces formed by various materials. The technical scheme is that the three-dimensional printing machine comprises a plurality of injector type spray heads for injection, a plurality of injectors for storage, the feed system, a control system, a machine body, a work bench, a horizontal left-right moving mechanism, a movable beam and a computer controlling and driving system.
Description
Technical field
The present invention relates to a kind of three-dimensional printer, relate in particular to the three-dimensional printer that a plurality of micro-syringe of a kind of usefulness are made shower nozzle.
Background technology
Three-dimensional printer is called the three-dimensional rapid forming machine again, the workpiece figure control instruction of sending according to computer, the shower nozzle of this printer can optionally spray " ink " wherein and be deposited on the workbench substrate of below, and " ink " solidifies the ground floor X-Y scheme cross section that the back constitutes workpiece rapidly.After this layer shaping finished, the shower nozzle little layer height that rises carried out the shaping in second layer X-Y scheme cross section according to the similar procedure of ground floor, this stacked being added on the last layer, and be bonded to each other and be one.Repeat two dimension so from level to level and be shaped, be shaped up to whole 3 D workpiece and finish.So-called " ink " is not limited to common typewriting and drawing ink, but any material that changes fluidised form into for example can become the metal/ceramic particulate of suspension (or colloid) etc. behind soluble material, fusible plastics, the interpolation dispersant.
When making workpiece with three-dimensional printer, need not traditional machining lathe and tool and mould, under the control of computer, but the three-dimensional CAD model direct forming 3D solid according to workpiece, thereby the development of very suitable new product, can save man-hour and cost greatly, be a kind of high-new former of giving priority to now.
It is several that the shower nozzle that three-dimensional printer adopts mainly contains piezoelectric type, thermal bubble type, melt extruded formula and micro-syringe formula etc., wherein, piezoelectric type and thermal bubble type shower nozzle are suitable for spraying viscosity lower " ink ", melt extruded formula shower nozzle is suitable for spraying thermoplastic, so the material scope of application of these several shower nozzles has bigger restriction.Micro-syringe formula shower nozzle can adopt various fluidised forms " ink ", the scope of application of material almost without limits, so extremely pay attention in recent years.Yet present micro-syringe formula three-dimensional printer has only a shower nozzle usually, and the finite volume of barrel, can't continuous feeding, therefore can only be difficult to the shaping production for multiple material and big workpiece as the small workpiece forming test research of homogenous material.
Summary of the invention
The objective of the invention is to address the above problem, a kind of many shower nozzles of micro-syringe formula three-dimensional printer is provided, can be simultaneously with multiple fluidised form file printing Forming Workpiece, and be provided with automatic feeding system, can work long hours continuously incessantly, in order to make the big workpiece that is constituted by various material.
Technical scheme of the present invention is: the present invention has disclosed a kind of many shower nozzles of micro-syringe formula three-dimensional printer, comprising:
At least one sprays the syringe type shower nozzle of usefulness, sprays the fluidised form moulding material;
The syringe of at least one storage usefulness, storage fluidised form moulding material;
Feeding system, connect described at least one spray the syringe type shower nozzle of usefulness, to described syringe type shower nozzle supply fluidised form moulding material;
Control system is controlled the injection action of described syringe type shower nozzle;
Fuselage is used for described many shower nozzles of the micro-syringe formula three-dimensional printer of carrying;
Workbench is in the below of described syringe type shower nozzle, links to each other with described fuselage, is used for the carrying Forming Workpiece, and horizontal movement before and after can described relatively fuselage;
Horizontal side-to-side movement mechanism links to each other with described syringe type shower nozzle, is used for driving the described relatively workbench side-to-side movement of described syringe type shower nozzle along continuous straight runs;
Moved cross beam links to each other with described fuselage, is used for the described syringe type shower nozzle of carrying, and the vertically described relatively fuselage of described syringe type shower nozzle is moved up and down;
Computer control and drive system are used for automatic control and the driving of complete machine.
According to an embodiment of many shower nozzles of micro-syringe formula three-dimensional printer of the present invention, the syringe type shower nozzle of described injection usefulness is micro syringe formula shower nozzle, and it comprises syringe needle, injection syringe, injection loam cake and injection sealing ring, wherein:
Described syringe needle, its upper end links to each other with described syringe, as the outlet of described fluidised form moulding material;
Described injection syringe, its upper end links to each other with described loam cake, is used for holding described fluidised form moulding material;
Described injection loam cake, its upper end links to each other with described feeding system, for being connected of described injection syringe and described feeding system;
Described injection sealing ring is positioned at the lower end of described injection loam cake, is used for the sealing of described injection syringe, prevents that described fluidised form moulding material from leaking.
Embodiment according to many shower nozzles of micro-syringe formula three-dimensional printer of the present invention, the syringe of described storage usefulness be positioned at described injection usefulness the syringe type shower nozzle the top and be arranged side by side, the syringe of described storage usefulness comprises storage syringe, separator piston, storage loam cake, stores and use sealing ring, wherein:
Described storage syringe, its upper end links to each other with loam cake with described storage, is used for holding described fluidised form moulding material;
Described separator piston is positioned at described storage with syringe, is used for described the storage upper gas of syringe and the isolation between the fluidised form moulding material of bottom;
Described storage loam cake, its upper end links to each other with described feeding system, is used for being connected of described storage usefulness syringe and described feeding system;
Described storage sealing ring is positioned at described storage with the lower end of loam cake, is used for described storage with the sealing of syringe, prevents that Compressed Gas from leaking.
According to an embodiment of many shower nozzles of micro-syringe formula three-dimensional printer of the present invention, described feeding system comprises at least one hopper, multichannel trace peristaltic pump, at least one filter, at least one overflow valve, wherein:
Described at least one hopper is positioned at the starting point of described feeding system, is used for the described fluidised form moulding material of storage;
Described multichannel trace peristaltic pump, its import links to each other with described hopper by feed pipe, its outlet links to each other with described filter by described feed pipe, is used for making the described fluidised form moulding material of described hopper to be delivered to described storage with in syringe and the described injection syringe;
Described at least one filter, its import links to each other with described multichannel trace peristaltic pump by described feed pipe, and its outlet links to each other with syringe, described injection syringe with described storage with described overflow valve by described feed pipe;
Described overflow valve, its import links to each other with described multichannel trace peristaltic pump by described feed pipe, its outlet links to each other with described hopper, and the port opening of described overflow valve is got rid of fluidised form moulding material unnecessary in the described feeding system when pressure in the described feed pipe surpasses predetermined value.
According to an embodiment of many shower nozzles of micro-syringe formula three-dimensional printer of the present invention, described control system is atmospheric control, comprises at least one solenoid directional control valve, at least one vent valve, at least one blows off syringe needle, at least one choke valve, wherein:
Described at least one solenoid directional control valve, its import links to each other with compressed gas source, and its outlet links to each other by the syringe of air supply pipe with described storage usefulness, is used for the break-make of the syringe of the described compressed gas source of control and described storage usefulness;
At least one vent valve, its import links to each other with the air inlet of the syringe of described storage usefulness, and its outlet links to each other with atmosphere, is used for the gas of the syringe of the described storage usefulness of eliminating;
At least one blows off syringe needle, towards the syringe needle of the syringe type shower nozzle of described injection usefulness, is used for blowing down hydrops and the dirt at described syringe needle place;
At least one choke valve, its import links to each other with described atmospheric control by described air supply pipe, and its outlet links to each other with the described syringe needle that blows off, and is used for regulating blowing off air-flow.
According to an embodiment of many shower nozzles of micro-syringe formula three-dimensional printer of the present invention, described workbench comprises servomotor, workbench ball-screw, workbench line slideway, wherein:
Described servomotor according to the requirement of workpiece cross section figure, drives the syringe type shower nozzle of described injection usefulness along the fore-and-aft direction horizontal movement, changes the eject position of described shower nozzle;
Described workbench ball-screw is transformed to rectilinear motion with rotatablely moving of described servomotor;
Described workbench line slideway, the precision that is used for described workbench front and back horizontal movement leads.
According to an embodiment of many shower nozzles of micro-syringe formula three-dimensional printer of the present invention, described moved cross beam comprises stepper motor, moved cross beam ball-screw, moved cross beam line slideway, wherein:
Described stepper motor is used for driving described moved cross beam and moves up and down;
Described moved cross beam ball-screw is transformed to rectilinear motion with rotatablely moving of described stepper motor;
Described moved cross beam line slideway is used for the precision guiding that described moved cross beam moves up and down.
The present invention contrasts prior art following beneficial effect: the solution of the present invention is the syringe, feeding system, control system, fuselage, workbench of the syringe type shower nozzle that comprises a plurality of injection usefulness, a plurality of storage usefulness, horizontal side-to-side movement mechanism, moved cross beam and computer control and drive system, compared to prior art, the present invention can be simultaneously with multiple fluidised form file printing Forming Workpiece, and be provided with automatic feeding system, can work long hours continuously incessantly, in order to make the big workpiece that is constituted by various material.
Description of drawings
Fig. 1 shows the structure chart of the embodiment of many shower nozzles of micro-syringe formula three-dimensional printer of the present invention.
Fig. 2 shows the structure chart of the embodiment of purge apparatus of the present invention.
The specific embodiment
The invention will be further described below in conjunction with drawings and Examples.
Fig. 1 shows the structure chart of the embodiment of many shower nozzles of micro-syringe formula three-dimensional printer of the present invention.See also Fig. 1, many shower nozzles of micro-syringe formula three-dimensional printer of present embodiment mainly comprises: the syringe type shower nozzle of a plurality of injections, the syringe of a plurality of storage usefulness, feeding system, atmospheric control, fuselage, workbench, horizontal side-to-side movement mechanism, moved cross beam, computer control and drive system.
The syringe type shower nozzle of injection is micro syringe formula shower nozzle, can spray the fluidised form moulding material, comprises syringe needle 13,14,15,16, injection syringe 9,10,11,12, and injection loam cake 1,2,3,4, injection sealing ring 5,6,7,8 is formed.These syringe needles 13,14,15,16 upper end link to each other with corresponding injection syringe 9,10,11,12 respectively, as the outlet of fluidised form moulding material.Injection syringe 9,10,11,12 upper end link to each other with injection loam cake 1,2,3,4 respectively, are used for holding the fluidised form moulding material.Injection loam cake 1,2,3,4 upper end link to each other with the feeder sleeve of feeding system, be used for syringe 9,10,11,12 with being connected of feeding system.Injection sealing ring 5,6,7,8 lays respectively at injection loam cake 1,2,3,4 lower end, is used for syringe 9,10,11,12 sealing, prevents that the fluidised form moulding material from leaking.
The syringe of storage usefulness is positioned at the top of the syringe type shower nozzle that sprays usefulness and is arranged side by side, it comprises storage syringe 54,62,70,78, separator piston 53,61,69,77, storage is stored with sealing ring 52,60,68,76 with loam cake 51,59,67,75.Storage links to each other with loam cake 51,59,67,75 with storage with syringe 54,62,70,78 upper end, for holding the fluidised form moulding material.Separator piston 53,61,69,77 lays respectively at storage with in the syringe 54,62,70,78, is used for the storage upper gas of syringe and the isolation between the fluidised form moulding material of bottom.Storage links to each other with feeding system with loam cake 51,59,67,75 upper end, is used for storage and uses being connected of syringe and feeding system.Storage lays respectively at storage with loam cake 51,59,67,75 lower end with sealing ring 52,60,68,76, is used for storage with the sealing of syringe, prevents the Compressed Gas leakage.
Feeding system comprises hopper 37,40,43,46, multichannel trace peristaltic pump 35, filter 19,23,27,31, overflow valve 21,25,29,33.Hopper 37,40,43,46 is positioned at the starting point of feeding system, is used for storage fluidised form moulding material.The import of multichannel trace peristaltic pump 35 links to each other with hopper 37,40,43,46 respectively by feed pipe, its outlet links to each other with filter 19,23,27,31 respectively by feed pipe, be used for making hopper 37,40,43,46 fluidised form moulding material be delivered to storage with syringe 54,62,70,78 and injection syringe 9,10,11,12 in.Filter 19,23,27,31 import link to each other with multichannel trace peristaltic pump 35 respectively by feed pipe, and its outlet links to each other with syringe 54,62,70,78, injection syringe 9,10,11,12 with storing with overflow valve 21,25,29,33 respectively by feed pipe.Overflow valve 21,25,29,33 import link to each other by feed pipe and multichannel trace peristaltic pump 35, outlet links to each other with material recovery hopper 22,26,30,34 respectively, overflow valve 21,25,29,33 port opening are got rid of unnecessary fluidised form moulding material in the feeding system when pressure in the feed pipe surpasses predetermined value.
Atmospheric control comprises solenoid directional control valve 48,56,64,72, vent valve 49,57,65,73, blows off syringe needle (for example shown in Figure 2 81), choke valve (for example shown in Figure 2 82).Solenoid directional control valve 48,56,64,72 import link to each other with compressed gas source, and its outlet links to each other with the syringe of storage usefulness respectively by air supply pipe, are used for the break-make of control compressed gas source and the syringe of storing usefulness.Vent valve 49,57,65,73 import link to each other with the air inlet of the syringe of storage usefulness, and its outlet links to each other with atmosphere, stores the gas of the syringe of usefulness for eliminating.Blow off syringe needle 81 towards the syringe needle of the syringe type shower nozzle that sprays usefulness, be used for blowing down hydrops and the dirt at syringe needle place.The import of choke valve 82 links to each other with atmospheric control by air supply pipe, its outlet with blow off syringe needle and link to each other, be used for adjusting and blow off air-flow.
Workbench comprises servomotor, workbench ball-screw, workbench line slideway, and wherein servomotor drives the syringe type shower nozzle of injection usefulness along the fore-and-aft direction horizontal movement according to the requirement of workpiece cross section figure, changes the eject position of described shower nozzle.The workbench ball-screw is transformed to rectilinear motion with rotatablely moving of servomotor.The workbench line slideway is used for the precision guiding of workbench front and back horizontal movement.
Moved cross beam comprises stepper motor, moved cross beam ball-screw, moved cross beam line slideway, and wherein stepper motor moves up and down for driving moved cross beam.The moved cross beam ball-screw is transformed to rectilinear motion with rotatablely moving of stepper motor.The moved cross beam line slideway is used for the precision guiding that moved cross beam moves up and down.
In Fig. 1, the syringe 9 of the micro syringe formula shower nozzle that a plurality of (for example 4 shown in Figure 1) horizontal Tile is arranged, 10,11 and 12, the syringe needle 13 of micro syringe formula shower nozzle, 14,15 and 16, the big capacity syringe 54 of the big volume injection device that a plurality of (for example 4 shown in Figure 1) horizontal Tile is arranged, 62,70,78 and separator piston 53,61,69 and 77, a plurality of (for example 4 shown in Figure 1) hopper 37 of feeding system, 40,43 and 46, the multichannel trace peristaltic pump 35 of feeding system, a plurality of (for example 4 shown in Figure 1) filter 19 of feeding system, 23,27 and 31, a plurality of (for example 4 shown in Figure 1) overflow valve 21 of feeding system, 25,29 and 33, a plurality of (for example 4 shown in Figure 1) solenoid directional control valve 48 of atmospheric control, 56,64 and 72, a plurality of (for example 4 shown in Figure 1) vent valve 49 of atmospheric control, 57,65 and 73, workbench 18 and substrate 17.Instruction according to computer control system (not shown), connect solenoid directional control valve 48,56, certain solenoid directional control valve in 64 and 72 (for example 48), from the compressed air of air inlet 80 by corresponding certain solenoid directional control valve (for example 48), certain air supply pipe (for example 50) and certain storage enter the epicoele of certain separator piston (for example 53) with loam cake (for example 51), certain fluidised form material (for example 55) is exerted pressure, force certain injection loam cake by corresponding certain micro syringe formula shower nozzle of this fluidised form material (for example 4), certain injection syringe (for example 12) and certain syringe needle (for example 16) are injected on the substrate 17.Above-mentioned injection seesaws with the Y-direction of workbench 18, horizontal side-to-side movement mechanism (not shown) matches, can be on substrate 17 the part figure of certain cross section profile layer of printing-forming workpiece progressively.Subsequently, can be according to above-mentioned similar procedure, make other 3 micro syringe formula shower nozzles spray other certain fluidised form materials (for example 63,71 and 79) one by one, other part figures of certain cross section profile layer of printing-forming workpiece progressively on substrate 17.
After certain cross section profile layer pattern printing-forming of workpiece was finished, moved cross beam (not shown) drove floor height of this shower nozzle rising, and next layer cross section contour pattern of printing-forming workpiece so circulates and finishes up to the 3 D workpiece printing-forming again.
How logical (for example 4 passages shown in Figure 1) road trace peristaltic pump 35 among Fig. 1 can be simultaneously to a plurality of these shower nozzle supply fluidised form materials, a kind of fluidised form material of the corresponding supply of each passage.For example, make the fluidised form material 55 in the hopper 37 flow to storage with in the syringe 54 and 12 through pump intake 36, filter 19 and feed pipe 20 by feed pipe 38.When these two storages used the pressure of fluidised form material in the syringe to surpass predetermined pressure, corresponding overflow valve 21 was opened, and unnecessary fluidised form material is drained into reclaim hopper 22.
Fig. 2 shows the schematic diagram of the embodiment of the purge apparatus that the present invention adopts, and this device is formed by blowing off syringe needle 81, choke valve 82 and air supply pipe 83, and air supply pipe 83 links to each other with the outlet of corresponding solenoid directional control valve 48.When shower nozzle is finished an injection action by syringe needle 16, should close corresponding solenoid directional control valve 48 immediately, so the corresponding storage rapid exhaust of epicoele of the separator piston 53 of syringe, the syringe needle 16 of corresponding shower nozzle stops to spray immediately.But because the surface tension effects of this syringe needle place fluidised form material has small liquid pearl in the lower end of this syringe needle and assembles.After adopting purge apparatus, when connecting solenoid directional control valve 48, little air-flow of controlling through choke valve 82 can blow down the liquid pearl that assemble syringe needle 16 lower ends, guarantees the normal injection of syringe needle 16 next time.Simultaneously, purge apparatus can also blow down the remaining dirt in syringe needle 16 lower ends, avoids syringe needle to stop up.
After adopting the invention described above, can be simultaneously with multiple fluidised form file printing Forming Workpiece, and be provided with automatic feeding system, can work long hours continuously incessantly, in order to make the big workpiece of many materials formations.
Above-described embodiment provides to those of ordinary skills and realizes or use of the present invention; those of ordinary skills can be under the situation that does not break away from inventive concept; above-described embodiment is made various modifications or variation; thereby protection scope of the present invention do not limit by above-described embodiment, and should be the maximum magnitude that meets the inventive features that claims mention.
Claims (7)
1. many shower nozzles of micro-syringe formula three-dimensional printer comprises:
At least one sprays the syringe type shower nozzle of usefulness, sprays the fluidised form moulding material;
The syringe of at least one storage usefulness, storage fluidised form moulding material;
Feeding system, connect described at least one spray the syringe type shower nozzle of usefulness, to described syringe type shower nozzle supply fluidised form moulding material;
Control system is controlled the injection action of described syringe type shower nozzle;
Fuselage is used for described many shower nozzles of the micro-syringe formula three-dimensional printer of carrying;
Workbench is in the below of described syringe type shower nozzle, links to each other with described fuselage, is used for the carrying Forming Workpiece, and horizontal movement before and after can described relatively fuselage;
Horizontal side-to-side movement mechanism links to each other with described syringe type shower nozzle, is used for driving the described relatively workbench side-to-side movement of described syringe type shower nozzle along continuous straight runs;
Moved cross beam links to each other with described fuselage, is used for the described syringe type shower nozzle of carrying, and the vertically described relatively fuselage of described syringe type shower nozzle is moved up and down;
Computer control and drive system are used for automatic control and the driving of complete machine.
2. many shower nozzles of micro-syringe formula three-dimensional printer according to claim 1 is characterized in that, the syringe type shower nozzle of described injection usefulness is micro syringe formula shower nozzle, and it comprises syringe needle, injection syringe, injection loam cake and injection sealing ring, wherein:
Described syringe needle, its upper end links to each other with described syringe, as the outlet of described fluidised form moulding material;
Described injection syringe, its upper end links to each other with described loam cake, is used for holding described fluidised form moulding material;
Described injection loam cake, its upper end links to each other with described feeding system, for being connected of described injection syringe and described feeding system;
Described injection sealing ring is positioned at the lower end of described injection loam cake, is used for the sealing of described injection syringe, prevents that described fluidised form moulding material from leaking.
3. many shower nozzles of micro-syringe formula three-dimensional printer according to claim 2, it is characterized in that, the syringe of described storage usefulness be positioned at described injection usefulness the syringe type shower nozzle the top and be arranged side by side, the syringe of described storage usefulness comprises storage syringe, separator piston, storage loam cake, stores and use sealing ring, wherein:
Described storage syringe, its upper end links to each other with loam cake with described storage, is used for holding described fluidised form moulding material;
Described separator piston is positioned at described storage with syringe, is used for described the storage upper gas of syringe and the isolation between the fluidised form moulding material of bottom;
Described storage loam cake, its upper end links to each other with described feeding system, is used for being connected of described storage usefulness syringe and described feeding system;
Described storage sealing ring is positioned at described storage with the lower end of loam cake, is used for described storage with the sealing of syringe, prevents that Compressed Gas from leaking.
4. many shower nozzles of micro-syringe formula three-dimensional printer according to claim 3 is characterized in that, described feeding system comprises at least one hopper, multichannel trace peristaltic pump, at least one filter, at least one overflow valve, wherein:
Described at least one hopper is positioned at the starting point of described feeding system, is used for the described fluidised form moulding material of storage;
Described multichannel trace peristaltic pump, its import links to each other with described hopper by feed pipe, its outlet links to each other with described filter by described feed pipe, is used for making the described fluidised form moulding material of described hopper to be delivered to described storage with in syringe and the described injection syringe;
Described at least one filter, its import links to each other with described multichannel trace peristaltic pump by described feed pipe, and its outlet links to each other with syringe, described injection syringe with described storage with described overflow valve by described feed pipe;
Described overflow valve, its import links to each other with described multichannel trace peristaltic pump by described feed pipe, its outlet links to each other with described hopper, and the port opening of described overflow valve is got rid of fluidised form moulding material unnecessary in the described feeding system when pressure in the described feed pipe surpasses predetermined value.
5. many shower nozzles of micro-syringe formula three-dimensional printer according to claim 4, it is characterized in that, described control system is atmospheric control, comprises at least one solenoid directional control valve, at least one vent valve, at least one blows off syringe needle, at least one choke valve, wherein:
Described at least one solenoid directional control valve, its import links to each other with compressed gas source, and its outlet links to each other by the syringe of air supply pipe with described storage usefulness, is used for the break-make of the syringe of the described compressed gas source of control and described storage usefulness;
At least one vent valve, its import links to each other with the air inlet of the syringe of described storage usefulness, and its outlet links to each other with atmosphere, is used for the gas of the syringe of the described storage usefulness of eliminating;
At least one blows off syringe needle, towards the syringe needle of the syringe type shower nozzle of described injection usefulness, is used for blowing down hydrops and the dirt at described syringe needle place;
At least one choke valve, its import links to each other with described atmospheric control by described air supply pipe, and its outlet links to each other with the described syringe needle that blows off, and is used for regulating blowing off air-flow.
6. many shower nozzles of micro-syringe formula three-dimensional printer according to claim 5 is characterized in that described workbench comprises servomotor, workbench ball-screw, workbench line slideway, wherein:
Described servomotor according to the requirement of workpiece cross section figure, drives the syringe type shower nozzle of described injection usefulness along the fore-and-aft direction horizontal movement, changes the eject position of described shower nozzle;
Described workbench ball-screw is transformed to rectilinear motion with rotatablely moving of described servomotor;
Described workbench line slideway, the precision that is used for described workbench front and back horizontal movement leads.
7. many shower nozzles of micro-syringe formula three-dimensional printer according to claim 6 is characterized in that described moved cross beam comprises stepper motor, moved cross beam ball-screw, moved cross beam line slideway, wherein:
Described stepper motor is used for driving described moved cross beam and moves up and down;
Described moved cross beam ball-screw is transformed to rectilinear motion with rotatablely moving of described stepper motor;
Described moved cross beam line slideway is used for the precision guiding that described moved cross beam moves up and down.
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| CN201110453282.7A CN103182840B (en) | 2011-12-29 | 2011-12-29 | Micro injector type multi-spray-head three-dimensional printing machine |
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| CN201110453282.7A CN103182840B (en) | 2011-12-29 | 2011-12-29 | Micro injector type multi-spray-head three-dimensional printing machine |
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