CN204451221U - Three dimensional model printing system - Google Patents
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- CN204451221U CN204451221U CN201520048727.7U CN201520048727U CN204451221U CN 204451221 U CN204451221 U CN 204451221U CN 201520048727 U CN201520048727 U CN 201520048727U CN 204451221 U CN204451221 U CN 204451221U
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Abstract
The utility model provides a kind of three dimensional model printing system.This three dimensional model printing system comprises: industrial computer; Drive unit, described drive unit is electrically connected with described industrial computer, and described industrial computer controls the motion of described drive unit; And nozzle array, described nozzle array comprise n capable × m row nozzle, wherein, n >=1, m >=1, there is distance between the axis of m or m+1 described nozzle in the axis of the described nozzle of the m in n-th line and the (n+1)th row, described industrial computer controls described drive unit and drives described nozzle to open or close, solve the technical barrier that print speed and printing precision can not be compatible, realize the printing threedimensional model of quick arbitrary accuracy.
Description
Technical field
The utility model relates to printing device field, particularly relates to a kind of three dimensional model printing system that can improve print speed and printing precision.
Background technology
Threedimensional model (3D) prints, and also known as increasing material manufacture, being the mode of binding material directly can will design a model and be fabricated to three-dimensional body by successively printing, is a kind of manufacturing technology with industrial revolution meaning.The manufacture process that 3D prints, without the need to the mould of traditional processing mode, breaks through the manufacturing limit of traditional diamond-making technique, can prepare the labyrinth that traditional diamond-making technique cannot be processed, and not increase manufacturing cost.3D prints and reduces new-product development cycle and cost, can respond growing individual demand fast, will change following manufacturing mode, also by changing the method for designing of traditional machined surface to manufacturing process, expedites the emergence of the new method of Function-oriented design.Therefore, 3D printing technique will have important strategic importance in following manufacturing industry, particularly for the relatively weak China of manufacturing technology, be faced with the dual-pressure that developed country returns to the low-cost advantage of manufacturing industry and developing country at present, grasp original 3D printing technique to contribute to strengthening manufacturing level, reducing and external gap, for China surmounts western countries in manufacturing industry, laying the foundation for realizing manufacturing power.
At present, 3D printing technique mainly contains three-dimensional straight writing technology, laser/electron beam cladding technology, laser/Electron Beam Selective Sintering technology, photocuring technology, fusion sediment technology etc.Three-dimensional straight writing technology comprises drop injection and continuous filament directly writes two classes, is mainly used in the materials such as electronic material, organic solvent, cell, aerosol; Be widely used in the electronic devices such as capacitor and inductor resistance, the display devices such as Organic Light Emitting Diode (OLED), optical filter, the function element such as biochemical sensor, lenticule, fine periodic structure.Adopt high energy thermal source (as laser, the electron beam) metal powder material that partly or entirely fusing fusing point is higher, prepare complicated hardware.Photocuring technology is mainly used in the photosensitive resin material to ultraviolet-sensitive.Fusion sediment technology is mainly used in the filamentary materials such as ABS, nylon, low-melting-point metal.
Wherein ink-jet direct writing technology has a wide range of applications at micro element manufacture view.The manufacture of tradition micro element mainly relies on photoetching technique, this technical operation flow process is numerous and diverse, exist and pollute, and working ability cannot meet the limit requirements of MEMS, the micro element that three-dimensional straight writing technology then can meet more high accuracy, smaller szie manufactures demand, and directly can print electronic devices and components.At present, the 3D that Microfab company of the U.S. utilizes droplet discharge technique to realize multiple material prints, and is successfully applied to biological medicine, printed electronic, optics etc.Arizona university electronics and computer engineering institute also utilize liquid droplet ejection apparatus to prepare the micro elements such as microwave device, antenna, waveguide.
But these technology also exist the slower shortcoming of shaping speed at present, particularly for the fine three-dimensional structure that precision is higher, long work increases burst accident and causes shaping failed risk, in addition machine operates stability for a long time and also can reduce, and therefore slow shaping speed hinders the extensive use of 3D printing technique in engineering largely.In order to improve the shaping speed of 3D, the method adopting many shower nozzles shaping at present more.Although the nozzle array combined by multiinjector improves shaping speed, the arrangement of simple nozzle direction can not eliminate the wall thickness that exists between nozzle to the impact of printing precision, is therefore difficult to improve further in resolution ratio.
Utility model content
Based on this, be necessary the problem affecting printing precision for the existing three dimensional model printing technology wall thickness existed between nozzle, provide a kind of and can improve the speed of three dimensional model printing and the three dimensional model printing system of precision.Above-mentioned purpose is achieved through the following technical solutions:
A kind of three dimensional model printing system, comprising:
Industrial computer;
Drive unit, described drive unit is electrically connected with described industrial computer, and described industrial computer controls the motion of described drive unit; And
Nozzle array, described nozzle array comprise n capable × m row nozzle, wherein, n >=1, m >=1, there is distance between the axis of m or m+1 described nozzle in the axis of the described nozzle of the m in n-th line and the (n+1)th row, described industrial computer controls described drive unit and drives described nozzle to open or close.
Wherein in an embodiment, described three dimensional model printing system also comprises nozzle component, described nozzle and described nozzle component removably connect, described nozzle component comprises liquid storage pipe, woven hose and capillary, moulding material is placed in described liquid storage pipe, one end of described woven hose is arranged on described liquid storage pipe, and the other end of described woven hose is arranged on described nozzle, and described capillary is arranged on described nozzle one end away from described woven hose.
Wherein in an embodiment, the distance between the axis of m or m+1 described nozzle in the axis of the described nozzle of the m in described n-th line and described (n+1)th row is dislocation distance, and described dislocation distance is determined by the overlapping rate of described moulding material.
Wherein in an embodiment, described three dimensional model printing system also comprises seal box, and described nozzle array and described nozzle component are installed in described seal box.
Wherein in an embodiment, the type of drive of described drive unit is the combination of one or several modes in pneumatic mode, piezo electrics, thermal mode or ultrasonic vibration mode.
Wherein in an embodiment, the type of drive of described drive unit is the combination of pneumatic mode and piezo electrics;
Wherein, described drive unit comprises pressure controller, piezoelectric ceramics and piezo controller, described pressure controller is arranged in the air inlet pipe of liquid storage pipe in described nozzle component, and described piezoelectric ceramics is arranged on described nozzle, and described piezoelectric ceramics is electrically connected with described piezo controller.
Wherein in an embodiment, the mode that described woven hose exports described moulding material is the mode of pulse dropping liquid or continuous flow.
Wherein in an embodiment, described moulding material is polymeric material, normal temperature liquid material or shaping high-temperature material.
Wherein in an embodiment, described three dimensional model printing system also comprises heater, described heater is arranged on described nozzle component, wherein heater comprises heater and temperature controller, described heater is arranged on described nozzle, and described heater is electrically connected with described temperature controller.
Wherein in an embodiment, the quantity of described nozzle array is multiple, and misplace between two described nozzle arrays of arbitrary neighborhood arrangement in the height direction.
Wherein in an embodiment, between two described nozzle arrays of arbitrary neighborhood, the thickness of the height of dislocation in the height direction and the deposition of described moulding material adapts.
Wherein in an embodiment, described three dimensional model printing system also comprises the warning device for detecting unusual condition, and described warning device is electrically connected with described industrial computer.
The beneficial effects of the utility model are:
Three dimensional model printing system of the present utility model, structural design advantages of simple, for printing threedimensional model, nozzle array comprise n capable × m row nozzle, improved the shaping speed of threedimensional model by the nozzle of a greater number.Simultaneously, dislocation distance is there is between the axis of m or m+1 nozzle in the axis of m nozzle in n-th line and the (n+1)th row, wall thickness between two nozzles being eliminated arbitrary neighborhood by this dislocation distance is on the impact of the printing precision of threedimensional model, improve the resolution ratio of threedimensional model, solve the technical barrier that print speed and printing precision can not be compatible, realize the printing threedimensional model of quick arbitrary accuracy.
Accompanying drawing explanation
Fig. 1 is the front view of nozzle array one embodiment in three dimensional model printing system of the present utility model;
Fig. 2 is the schematic diagram that in three dimensional model printing system of the present utility model, one of them nozzle is connected with drive unit, heater;
Fig. 3 is the schematic diagram that three dimensional model printing system of the present utility model is closed at initial time nozzle;
Fig. 4 is that three dimensional model printing system of the present utility model is at t
1the schematic diagram that moment nozzle is opened or closed;
Fig. 5 is that three dimensional model printing system of the present utility model is at t
2the schematic diagram that moment nozzle is opened or closed;
Fig. 6 is that three dimensional model printing system of the present utility model is at t
4the schematic diagram that moment nozzle is opened or closed;
Fig. 7 is that three dimensional model printing system of the present utility model is at t
8the schematic diagram that moment nozzle is opened or closed;
Fig. 8 be three dimensional model printing system of the present utility model repeatedly shaping time the schematic diagram of closing at initial time nozzle;
Fig. 9 be three dimensional model printing system of the present utility model repeatedly shaping time at t
2the schematic diagram that moment nozzle is opened or closed;
Figure 10 be three dimensional model printing system of the present utility model repeatedly shaping time at t
12the schematic diagram that moment nozzle is opened or closed;
Figure 11 is the overlap joint design sketch that two row nozzle injection molding materials of arbitrary neighborhood in the nozzle assembly of three dimensional model printing system of the present utility model form sedimentary deposit on substrate;
Figure 12 is the front view of another embodiment of nozzle array in three dimensional model printing system of the present utility model;
Figure 13 is the front view that three dimensional model printing system of the present utility model comprises multiple nozzle array group;
Figure 14 is the schematic diagram of multiple matrix group in the three dimensional model printing system shown in Figure 13;
Wherein:
1-nozzle array;
11-the first row nozzle rows; 111-the first row first nozzle; 112-the first row second nozzle; 113-the first row the 3rd nozzle; 114-the first row the 4th nozzle; 115-the first row the 5th nozzle;
12-second row nozzle rows; 121-second row first nozzle; 122-second row second nozzle;
13-the third line nozzle rows; 131-the third line first nozzle; 132-the third line second nozzle;
5-pressure controller;
6-piezo controller;
7-moulding material;
8-liquid storage pipe;
9-woven hose;
15-air inlet pipe;
16-slide block;
17-3 d part;
18-motion platform;
19-Z bracing strut;
20-connecting rod;
21-guide rail;
23-capillary;
24-dropping liquid;
25-sedimentary deposit;
26-substrate;
27-piezoelectric ceramics;
28-heater;
29-Capacitance Coupled device camera;
30-seal box;
31-temperature controller;
32-nozzle array group.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, by the following examples, and by reference to the accompanying drawings, three dimensional model printing system of the present utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
See Fig. 1 and Fig. 2, the three dimensional model printing system of the utility model one embodiment, for printing threedimensional model, comprises industrial computer, drive unit, nozzle array 1 and motion platform 18.Drive unit is electrically connected with industrial computer, and industrial computer can accessory drive motion.Threedimensional model generates on the substrate 26 of motion platform 18, and motion platform 18 is electrically connected with industrial computer, and industrial computer can drive substrate 26 to move by controlled motion platform 18, to adapt to the nozzle array 1 of varying number.By software by the slicing delamination of threedimensional model to obtain the profile information of the two-dimensional section figure of this model, generate the fill path of corresponding numerical control code and two-dimensional section figure according to the profile information of every layer of two-dimensional section figure.Industrial computer drives nozzle array 1 to move according to the numerical control code of the profile information generation of every layer and fill path accessory drive.When printing threedimensional model, industrial computer drives drive unit Control Nozzle array 1 successively to print final threedimensional model.Nozzle array 1 prints one deck two-dimensional section figure at every turn, and after nozzle array prints for more than 1 time, multilayer two-dimension sectional view superposes formation threedimensional model mutually.
Nozzle array 1 comprise n capable × m row nozzle, wherein, n >=1, m >=1, often row nozzle is arranged along X-direction, and often row nozzle is arranged along Y direction, there is dislocation distance between the axis of m or m+1 nozzle in the axis of m nozzle in n-th line and the (n+1)th row.In the utility model, X-axis, Y-axis and Z axis are arranged according to cartesian coordinate system.Certainly, X-axis, Y-axis and Z axis also can limit direction arbitrarily, but need to ensure that X-axis and Y-axis are in same plane, and Z axis is the short transverse of nozzle array.The corresponding drive unit of each nozzle, industrial computer accessory drive drives nozzle to open or closes.Certainly, also can be the corresponding drive unit of multiple nozzle.
Software generates numerical control code and fill path according to the profile information of every layer of two-dimensional section figure, the fill path of two-dimensional section figure calculates not unlatching or the closing information of each nozzle of diverse location in the same time by corresponding algorithm again, generate the code that nozzle is opened or closed, and then industrial computer accessory drive, the unlatching of each nozzle in the code Control Nozzle array 1 that motion platform 18 is opened according to numerical control code and nozzle or closed or closedown, realize the rapid shaping of two-dimensional section figure, material 7 to be formed solidifies or one deck under the situation compacted under that process conditions meet, finally can realize quick high accuracy generating three-dimensional models.
Three dimensional model printing system of the present utility model by n capable × m row nozzle array 1 improve shaping speed, the arrangement that misplaces in the X-axis direction between the two row nozzles by arbitrary neighborhood improves printing precision, and then makes three dimensional model printing system can realize the three dimensional model printing of quick high accuracy.Nozzle array 1 comprises the capable nozzle rows of n, and often row nozzle rows comprises an equally distributed m nozzle.The first row nozzle rows 11, second row nozzle rows 12, the third line nozzle rows 13 ... the n-th line nozzle rows certain distance that staggers in x direction forms n capable nozzle array 1.The first row nozzle rows 11 comprises the first row first nozzle 111, the first row second nozzle 112, the first row the 3rd nozzle 113, the first row the 4th nozzle 114, the first row the 5th nozzle 115 ... the first row m nozzle; Second row nozzle rows 12 comprises the second row first nozzle 121, second row second nozzle 122 ... second row m nozzle; The third line nozzle rows 13 comprises the third line first nozzle 131, the third line second nozzle 132 ... the third line m nozzle; N-th line nozzle rows comprises n-th line first nozzle, n-th line second nozzle, n-th line the 3rd nozzle ... n-th line m nozzle.
Distance is there is between the axis of the axis of m nozzle in n-th line and m or m+1 nozzle in the (n+1)th row, namely n-th line nozzle rows and the (n+1)th row nozzle rows misplace and arrange, 12 are grinned for the first row nozzle rows 11 and the second row nozzle, that is there is distance between the axis of the first row first nozzle 111 and the axis of the second row first nozzle 121, the distance between the axis of the first row first nozzle 111 and the axis of the second row first nozzle 121 is for misplacing distance.
At present, three dimensional model printing technology also exists the problem that shaping speed and printing precision can not be compatible.In order to ensure the printing precision of threedimensional model, shaping speed during three dimensional model printing will be slack-off accordingly, particularly for the fine three-dimensional structure that precision is higher, for a long time work increases burst accident and causes shaping failed risk, and machine operates stability for a long time and also can reduce in addition.In order to improve the shaping speed of threedimensional model, the method adopting many shower nozzles shaping more, but like this can because the wall thickness existed between nozzle affects the printing precision of threedimensional model.Three dimensional model printing system of the present utility model adopt n capable × nozzle array 1 of m row improves the shaping speed of threedimensional model, the wall thickness of arranging between two nozzles eliminating arbitrary neighborhood misplace in the X-axis direction to the impact of the printing precision of threedimensional model between the two row nozzles by arbitrary neighborhood, improve the resolution ratio of threedimensional model, namely improve the printing precision of threedimensional model.The open and close of drive unit Control Nozzle are driven to realize the three dimensional model printing of quick high accuracy by industrial computer.
Further, often row is unrestricted in principle with the quantity of the nozzle often arranged, can infinite expanding.Certainly, the quantity of nozzle array 1 also can increase accordingly, forms nozzle array group 32.Meanwhile, the spacing between two nozzles of arbitrary neighborhood is identical, and this spacing is p.Set in the scope that spacing p between two nozzles of arbitrary neighborhood can permit in processing.But because nozzle needs to be connected with other devices such as drive unit, and other devices occupy certain locus again, and therefore, the spacing between two nozzles of arbitrary neighborhood is subject to a definite limitation.Different according to actual processing method, the spacing p between two nozzles of arbitrary neighborhood can micron, millimeter, centimetre etc. range.Further, m nozzle is uniformly distributed along X-direction, in order to reduce arbitrary neighborhood two nozzles between wall thickness, two nozzles are close to setting, like this can also magnitude setting is more in limited space nozzle, to improve the shaping speed of threedimensional model.In the utility model, distance p is nozzle size in the X-axis direction.
By software by threedimensional model slicing delamination, be divided into multilayer two-dimension sectional view, obtain the profile information of every layer of two-dimensional section figure, the profile information generation numerical control code of software according to every layer and the fill path of two-dimensional section figure.Software calculates not unlatching or the closing information of each nozzle of diverse location in the same time again by corresponding algorithm according to the fill path of every layer of two-dimensional section figure, generate the code that corresponding nozzle is opened or closed.Code transfer is opened or closed to numerical control code and nozzle in industrial computer by software subsequently, and industrial computer drives drive unit Control Nozzle array 1 to fill two-dimensional section figure according to corresponding code.As shown in Figure 3, each complete or Partial Mesh all represents the drop that nozzle ejects moulding material 7, but in forming process, is filtered out the grid of very small size by the threshold area arranging grid.Judge the information of the open and close of the nozzle determination nozzle that a certain moment needs shaping grid corresponding.
For the 3 row × 2 row nozzle arrays 1 that three row nozzle rows, often row two nozzles are formed, as shown in Figure 4, nozzle is filled according to Y direction, at t
1moment, have grid and the first row first nozzle 111 and the first row second nozzle 112 corresponding, industrial computer generates the code of the first row first nozzle 111 and the first row second nozzle 112 opened, and closes the code of all the other nozzles.As shown in Figure 5, subsequent time t
2nozzle array 1 entirety moves forward the distance of a grid along path Y direction, then there is grid corresponding with the first row first nozzle 111, second row first nozzle 121 and the second row second nozzle 122 respectively, industrial computer generates the code opening the first row first nozzle 111, second row first nozzle 121 and the second row second nozzle 122, closes the code of all the other nozzles.As shown in Figure 6, then t
4in the moment, have grid corresponding with the first row first nozzle 111 and the third line second 132 respectively, industrial computer generates the code opening the first row first nozzle 111 and the third line second 132 nozzle, closes the code of all the other nozzles.By that analogy, as shown in Figure 7, to t
8in the moment, industrial computer need generate opens the third line first nozzle 131 and the third line second nozzle 132, closes the code of all the other nozzles, so far completes this two-dimensional section code building.So repeatedly, the numerical control code and the nozzle that just obtain all slicing delamination of threedimensional model are opened or close code.
When the size of two-dimensional section figure is larger, nozzle array 1 cannot print whole two-dimensional section figures after single pass, needs could generate complete two-dimensional section figure through repeatedly shaping.As shown in Figure 8, with three row nozzle rows, the 3 row × 2 row nozzle arrays 1 that often row two nozzles are formed are example, and nozzle array 1 moves with S type path by Y direction.At t
2in the moment, as shown in Figure 9, need to open the first row first nozzle 111, second row first 121 and the second row second 122, close other nozzles, industrial computer generates corresponding switching codes.By that analogy, first time scanning is completed.Then, nozzle array 1 moves the distance of 6 grids to X-direction, carries out secondary scanning.At t
12in the moment, as shown in Figure 10, then need to close the third line first nozzle 131, open all the other nozzles, generate corresponding switching codes.And so forth, the code building of current two-dimensional section figure is completed.
Certainly, n is capable × and the nozzle array 1 of m row can process on same sheet material, and also can process on different sheet material, each nozzle is being mounted to nozzle array 1 by Precision Method combination, and the two time required is in process of production roughly the same.Nozzle array 1 adds man-hour on same sheet material, and the time that each nozzle machining needs is longer, but can save the combination set-up time like this.Nozzle array 1 adds man-hour on different sheet material, and the time that each nozzle machining needs is shorter, but needs the more time to be installed by each Nozzle combination.
See Fig. 1, as a kind of embodiment, three dimensional model printing system also comprises nozzle component, nozzle and nozzle component removably connect, nozzle component comprises liquid storage pipe 8, woven hose 9 and capillary 23, and moulding material 7 is placed in liquid storage pipe 8, and one end of woven hose 9 is arranged on liquid storage pipe 8, one end of woven hose 9 is arranged on nozzle, and capillary 23 is arranged on nozzle one end away from woven hose 9.Moulding material 7 loads in liquid storage pipe 8, and by unlatching or the closedown of drive unit Control Nozzle, during the unlatching of drive unit Control Nozzle, woven hose 9 is communicated with by nozzle with capillary 23, and moulding material 7 can flow on substrate 26, final generating three-dimensional models; During the closedown of drive unit Control Nozzle, be not communicated with between woven hose 9 and capillary 23, moulding material 7 can not flow.For removably connecting between nozzle and nozzle component, when shower nozzle damages, shower nozzle can be disassembled from nozzle component, being replaced with harmless shower nozzle, can cost be saved like this.Nozzle component and nozzle one_to_one corresponding, each nozzle component controls the output of connected nozzle moulding material 7.Moulding material 7 is stored in liquid storage pipe 8, each nozzle can have independently liquid storage pipe 8 for storing different moulding materials 7.Certainly, when multiple nozzle sprays identical moulding material 7, a liquid storage pipe 8 also can be used to be communicated with multiple nozzle, to save space.
When reality is shaping, abundant nozzle can be installed, nozzle is made to form nozzle array 1 or nozzle array group 32, nozzle forms nozzle array 1 or nozzle array group 32 can cover forming area required on substrate 26 completely, after overscanning, drive unit Control Nozzle is emitted into shaped material 7 all final generating three-dimensional models of covered substrate 26.Certainly, also can be shaping with a small amount of nozzle, nozzle array 1 is merely able to forming area required on cover part substrate 26, and after overscanning, drive unit Control Nozzle is emitted into shaped material 7 and this part substrate 26 is covered a part of threedimensional model of generation, moving nozzle array 1 again, make on nozzle array 1 covered substrate 26 needed for other forming area, after overscanning, generating portion threedimensional model successively, after repeatedly moving nozzle array 1 and Multiple-Scan, finally realize threedimensional model.
As shown in figure 11, as a kind of embodiment, the distance between the axis of m or m+1 nozzle in the axis of m nozzle in n-th line and the (n+1)th row is determined by the overlapping rate of moulding material 7 for dislocation distance, dislocation distance d.The shaping of threedimensional model drives nozzle array 1 successively to spray on the substrate 26 of motion platform 18 by drive unit to form.In order to ensure the printing precision of threedimensional model, the dislocation between two row nozzles of arbitrary neighborhood is needed to arrange.The one-shot forming material 7 that nozzle array 1 often ejects, moulding material 7 just forms a sedimentary deposit 25 on substrate 26, nozzle array 1 ejects repeatedly moulding material 7, substrate 26 is formed multiple sedimentary deposit 25, the superimposed final generating three-dimensional models of multiple sedimentary deposit 25.
When dislocation between two row nozzles of arbitrary neighborhood is arranged, the surfacing of threedimensional model can be made, so just require should meet certain overlapping rate between two sedimentary deposits 25 of the nozzle rows corresponding position of arbitrary neighborhood, and overlapping rate is relevant with the spray technology of moulding material 7 with the kind of moulding material 7.Therefore, the dislocation distance d of nozzle should determine according to the kind of moulding material 7 and spray technology, to meet certain overlapping rate.In fig. 11, the region M enclosed by camber line ABC and X-axis is the sedimentary deposit 25 that one of them nozzle rows injection molding material 7 is formed on substrate, the region N that camber line DE and X-axis enclose is the sedimentary deposit 25 that another nozzle rows injection molding material 7 adjacent with one of them nozzle rows is formed on substrate, and the part of intersecting between region M with region N is the overlap that the moulding material 7 of the nozzle rows of adjacent rows forms sedimentary deposit 25.
The size of each nozzle in nozzle array 1 can be identical, also can be different, the size of nozzle can change within the scope of micro-scale to macro-scale, namely nozzle size can micron, millimeter, centimetre scope in change, with the needs that satisfied different threedimensional model is shaping.As shown in Figure 1, in an embodiment of the present utility model, the size of each nozzle in nozzle array 1 is identical.Each nozzle in nozzle array 1 also can be different, as shown in figure 12, in another embodiment of the present utility model, the size of the nozzle of the marginal position of nozzle array 1 is less than the size of the nozzle of the medium position of nozzle array 1.Also need the output quantity accurately controlling moulding material 7 in all nozzles, to ensure that forming height one is made peace surfacing simultaneously.First case nozzle and the n-th row nozzle for filling border can adopt less size, make the precision of the surface forming of two-dimensional section figure higher.Size for filling inner nozzle can be comparatively large, to improve the shaping speed of two-dimensional section figure.Further, the cross sectional shape of nozzle is the rule such as circle or rectangle or irregular figure, and the cross sectional shape of nozzle also can be that rectangle is to each figure in circular change procedure.In the utility model, the cross sectional shape of nozzle is that rectangle should closely be arranged to make each nozzle, and then improves the shaping speed of threedimensional model.
As shown in figure 13, as a kind of embodiment, three dimensional model printing system also comprises seal box 30, seal box 30 can meet one or more conditions in vacuum, oxygen content, humidity, temperature or inert atmosphere, industrial computer and drive unit are arranged on outside seal box 30, and nozzle array 1 and nozzle component are installed in seal box 30.The forming process of threedimensional model can be carried out in atmospheric conditions, also can by seal box 30 pairs of conditions of molding as: one or more in vacuum, oxygen content, humidity, temperature or inert atmosphere control, to meet the user demand under varying environment condition.
As shown in Figure 2, as a kind of embodiment, the type of drive of drive unit is the combination of one or several modes in pneumatic mode, piezo electrics, thermal mode or ultrasonic vibration mode.Each nozzle is controlled by independently drive unit, and drive unit is electrically connected with industrial computer, can accessory drive by industrial computer, thus the opening or closing of Control Nozzle.In the present embodiment, the type of drive of drive unit is the combination of pneumatic mode and piezo electrics.Wherein, drive unit comprises pressure controller 5, piezoelectric ceramics 27 and piezo controller 6, and pressure controller 5 is arranged in the air inlet pipe 15 of liquid storage pipe 8 in nozzle component, and piezoelectric ceramics 27 is arranged on nozzle, and piezoelectric ceramics 27 is electrically connected with piezo controller 6.
After the environmental condition of threedimensional model sets, moulding material 7 is loaded in liquid storage pipe 8, controlled the pressure at air inlet pipe 15 place by pressure controller 5, make moulding material 7 to enter in capillary 23 through woven hose 9 and make moulding material 7 keep certain liquid surface shape in capillary 23 exit.Piezo controller 6 produces certain voltage waveform and makes tubular piezo-electric pottery 27 pairs of capillaries 23 produce the effect of pulse machine power, thus ejection drop 24, drop 24 solidifies and forms sedimentary deposit 25 on the substrate 26 of motion platform 18.
As a kind of embodiment, the mode that woven hose 9 is output into shaped material 7 is the mode of pulse dropping liquid or continuous flow.In nozzle array 1 each nozzle unlatching or close control at the switching codes of different time and locus by the two-dimensional section information determination different spray nozzles of industrial computer according to every layer.By the unlatching of each nozzle or close can print point array, columnar arrays or 3 d part 17, moulding material 7, with pulse drop or the spray regime of continuous flow, can carry out high accuracy quick three-dimensional model and print in miniature scale and super large macro-scale.
As a kind of embodiment, three dimensional model printing system also comprises heater, heater is arranged on nozzle component, wherein heater comprises heater 28 and temperature controller 31, heater 28 is arranged on nozzle, heater 28 is electrically connected with temperature controller 31, and temperature controller 31 can the heating-up temperature of control heater 28.The state that moulding material 7 ejects is dropping liquid state, and dropping liquid 24 is fallen on substrate 26, solidifies rear formation sedimentary deposit 25.Heater 28 can accelerate the setting rate of dropping liquid 24.Further, moulding material 7 mainly Material for Fused Deposition Modeling.More specifically, moulding material 7 is polymeric material, normal temperature liquid material or shaping high-temperature material etc.For the moulding material 7 that viscosity is higher, by heater 28 hot briquetting material 7 to higher temperature, be lowered into the viscosity of shaped material 7, the heating-up temperature of temperature controller 31 control heater 28.Certainly, when moulding material 7 is normal temperature liquid material, heater 28 also can be adopted to heat.Further, in order to accelerate the setting rate of dropping liquid 24 further, can by realizing the mode of the heat source sinterings such as substrate 26 preheating or infrared, laser in the forming process of dropping liquid 24.
As shown in Figure 13 and Figure 14, as a kind of embodiment, the quantity of nozzle array 1 is multiple, misplace between two nozzle arrays 1 of arbitrary neighborhood arrangement in the height direction, namely misplace arrangement in the Z-axis direction, can realize after single pass like this, and multiple nozzle array 1 can simultaneously shaping multiple two-dimensional section figure, printing effect can be improved further, improve the shaping speed of threedimensional model.Each nozzle is controlled by independently drive unit and attemperating unit, independently can control opening or closing of each nozzle by industrial computer.When between two nozzle arrays 1 of arbitrary neighborhood, dislocation is arranged in the Z-axis direction, three dimensional model printing system also comprises connecting rod 20, slide block 16, guide rail 21 and Z axis support 19, guide rail 21 is arranged on Z axis support 19, slide block 16 is arranged on guide rail 21, nozzle array 1 group is connected with the slide block 16 on Z axis support 19 by connecting rod 20, slide block 16 can move along guide rail 21 along Z-direction, and then drives nozzle array 1 group to move along Z-direction.
Multiple nozzle array 1 can be formed nozzle array group 32 by the mode misplaced along Z-direction.Industrial computer is in scanning process, and different spray nozzles array can print simultaneously.With two nozzle arrays 1, lower than another nozzle array 1 on one of them nozzle array 1 height in the Z-axis direction, each nozzle array 1 comprises three row nozzle rows, often row 2 nozzles, and the two-dimensional section figure shown in printed drawings 3 is example.Nozzle array group 32 moves along Y direction, at t
4moment, as shown in Figure 6, one of them nozzle array 1 opens the first row first nozzle 111 and the first row second nozzle 112, now, for another nozzle array 1, need to open the first row first nozzle 111 and the first row second nozzle 112, the two-dimensional section figure of nozzle array 1 printing wherein continues shaping, final generating three-dimensional models, thus the shaping speed improving threedimensional model.Industrial computer is first divided into according to threedimensional model and generates numerical control code and nozzle switch code, and then the opening or closing of the motion of industrial computer controlled motion platform 18 and each nozzle, and just successively can prepare 3 d part 17 by printing shaping material 7.
As shown in figs. 2 and 11, further, between two nozzle arrays 1 of arbitrary neighborhood, the thickness of the height h of dislocation in the Z-axis direction and the deposition of moulding material 7 adapts.Nozzle array 1 arrangement that misplaces in the Z-axis direction can realize shaping multiple two-dimensional section figure.And threedimensional model comprises multiple two-dimensional section figure, nozzle array 1 often sprays one-shot forming material 7 and forms a sedimentary deposit 25.When nozzle array 1 misplaces in the Z-axis direction and arranges, two adjacent nozzle arrays 1 form two two-dimensional section figures successively, the two-dimensional section figure of latter one can drop on previous two-dimensional section figure, constant in order to ensure that two nozzle arrays 1 form the order of two two-dimensional section figures successively, dislocation height h between two nozzle arrays 1 of arbitrary neighborhood should adapt with the thickness of the deposition of moulding material 7, and namely dislocation height h should be decided by the kind of moulding material 7 and spray technology.
As a kind of embodiment, three dimensional model printing system also comprises the warning device for detecting unusual condition, and warning device is electrically connected with industrial computer.In the utility model, warning device detects the running of three dimensional model printing system by Capacitance Coupled device (CCD) camera 29.Warning device is electrically connected with industrial computer, and when abnormal conditions appear in three dimensional model printing system, industrial computer Control Nozzle array 1 stops printing threedimensional model and giving a warning.
The utility model also relates to a kind of forming method of threedimensional model, comprises the steps:
S100: threedimensional model section is divided into multilayer two-dimension sectional view, obtains the profile information of every layer of two-dimensional section figure;
S200: the fill path generating numerical control code and two-dimensional section figure according to the profile information of two-dimensional section figure;
S300: the unlatching or the closing information that according to corresponding algorithm the fill path of two-dimensional section figure are calculated not each nozzle in diverse location nozzle array 1 in the same time;
S400: the code generating the unlatching of each nozzle according to unlatching or the closing information of nozzle each in nozzle array 1 or close;
S500: the code transfer that numerical control code and described nozzle are opened or closed is in industrial computer;
S600: two-dimensional section figure filled by the code that industrial computer drives drive unit Control Nozzle array 1 to open according to numerical control code and nozzle or close;
S700: repeating said steps S100 to S600, until generating three-dimensional models.The forming method of threedimensional model of the present utility model is applied to above-mentioned three dimensional model printing system, to realize the printing threedimensional model of quick high accuracy.
The above embodiment only have expressed several embodiment of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (12)
1. a three dimensional model printing system, is characterized in that, comprising:
Industrial computer;
Drive unit, described drive unit is electrically connected with described industrial computer, and described industrial computer controls the motion of described drive unit; And
Nozzle array, described nozzle array comprise n capable × m row nozzle, wherein, n >=1, m >=1, there is distance between the axis of m or m+1 described nozzle in the axis of the described nozzle of the m in n-th line and the (n+1)th row, described industrial computer controls described drive unit and drives described nozzle to open or close.
2. three dimensional model printing system according to claim 1, it is characterized in that, described three dimensional model printing system also comprises nozzle component, described nozzle and described nozzle component removably connect, described nozzle component comprises liquid storage pipe, woven hose and capillary, and moulding material is placed in described liquid storage pipe, and one end of described woven hose is arranged on described liquid storage pipe, the other end of described woven hose is arranged on described nozzle, and described capillary is arranged on described nozzle one end away from described woven hose.
3. three dimensional model printing system according to claim 2, it is characterized in that, distance between the axis of m or m+1 described nozzle in the axis of the described nozzle of the m in described n-th line and described (n+1)th row is dislocation distance, and described dislocation distance is determined by the overlapping rate of described moulding material.
4. three dimensional model printing system according to claim 3, is characterized in that, described three dimensional model printing system also comprises seal box, and described nozzle array and described nozzle component are installed in described seal box.
5. three dimensional model printing system according to claim 4, is characterized in that, the type of drive of described drive unit is the combination of one or several modes in pneumatic mode, piezo electrics, thermal mode or ultrasonic vibration mode.
6. three dimensional model printing system according to claim 5, is characterized in that, the type of drive of described drive unit is the combination of pneumatic mode and piezo electrics;
Wherein, described drive unit comprises pressure controller, piezoelectric ceramics and piezo controller, described pressure controller is arranged in the air inlet pipe of liquid storage pipe in described nozzle component, and described piezoelectric ceramics is arranged on described nozzle, and described piezoelectric ceramics is electrically connected with described piezo controller.
7. three dimensional model printing system according to claim 2, is characterized in that, the mode that described woven hose exports described moulding material is the mode of pulse dropping liquid or continuous flow.
8. three dimensional model printing system according to claim 7, is characterized in that, described moulding material is polymeric material, normal temperature liquid material or shaping high-temperature material.
9. three dimensional model printing system according to claim 2, it is characterized in that, described three dimensional model printing system also comprises heater, described heater is arranged on described nozzle component, wherein heater comprises heater and temperature controller, described heater is arranged on described nozzle, and described heater is electrically connected with described temperature controller.
10. three dimensional model printing system according to claim 9, is characterized in that, the quantity of described nozzle array is multiple, and misplace between two described nozzle arrays of arbitrary neighborhood arrangement in the height direction.
11. three dimensional model printing systems according to claim 10, is characterized in that, between two described nozzle arrays of arbitrary neighborhood, the thickness of the height of dislocation in the height direction and the deposition of described moulding material adapts.
12. three dimensional model printing systems according to any one of claim 1 to 11, it is characterized in that, described three dimensional model printing system also comprises the warning device for detecting unusual condition, and described warning device is electrically connected with described industrial computer.
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| CN105235221A (en) * | 2015-11-13 | 2016-01-13 | 黑龙江省科学院自动化研究所 | 3D printer and printing method thereof |
| CN105856562A (en) * | 2015-01-23 | 2016-08-17 | 中国科学院宁波材料技术与工程研究所 | Three-dimensional model printing system and forming method of three-dimensional model |
| CN106965422A (en) * | 2015-10-15 | 2017-07-21 | 精工爱普生株式会社 | The manufacture method of three-D moulding object and the manufacture device of three-D moulding object |
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| CN105856562A (en) * | 2015-01-23 | 2016-08-17 | 中国科学院宁波材料技术与工程研究所 | Three-dimensional model printing system and forming method of three-dimensional model |
| CN106965422A (en) * | 2015-10-15 | 2017-07-21 | 精工爱普生株式会社 | The manufacture method of three-D moulding object and the manufacture device of three-D moulding object |
| CN105235221A (en) * | 2015-11-13 | 2016-01-13 | 黑龙江省科学院自动化研究所 | 3D printer and printing method thereof |
| CN110831711A (en) * | 2017-05-01 | 2020-02-21 | 三全音科技有限公司 | Moulding method and apparatus, particularly for metals and/or ceramics |
| RU2747175C1 (en) * | 2017-10-30 | 2021-04-28 | Кочел Интеллиджент Машинери Лимитед | System and method for 3d printing and combined method for 3d printing |
| US10863795B2 (en) | 2018-05-30 | 2020-12-15 | Nike, Inc. | Articles of footwear with printed material deposited thereon |
| US11925237B2 (en) | 2018-05-30 | 2024-03-12 | Nike, Inc. | Articles of footwear with printed material deposited thereon |
| CN109703010A (en) * | 2019-01-18 | 2019-05-03 | 深圳市硬核智娱科技有限公司 | A kind of modularization 3D printer for building blocks manufacture |
| CN110641018A (en) * | 2019-09-25 | 2020-01-03 | 青岛理工大学 | Device and method for manufacturing flexible transparent conductive films in batch based on micro-nano 3D printing |
| CN111515397A (en) * | 2020-05-06 | 2020-08-11 | 中国航空制造技术研究院 | Design method and use method of additive manufacturing surface heat source |
| CN111515397B (en) * | 2020-05-06 | 2022-06-10 | 中国航空制造技术研究院 | Design method and use method of additive manufacturing surface heat source |
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