CN105479756A - Device and method for 3D printing of rock hole structural model - Google Patents
Device and method for 3D printing of rock hole structural model Download PDFInfo
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- CN105479756A CN105479756A CN201610012254.4A CN201610012254A CN105479756A CN 105479756 A CN105479756 A CN 105479756A CN 201610012254 A CN201610012254 A CN 201610012254A CN 105479756 A CN105479756 A CN 105479756A
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Abstract
The invention discloses a device and a method for 3D printing of a rock hole structural model. The method comprises the following steps: a model is built through CAD, is converted to a STL format, and is layered; and a printer is controlled according to printing data information, so that a printing platform and a liquid pool keep relatively stationary to move in an L-axle direction to finish printing of one layer, and Z-axle direction displacement driving device is controlled to enable the printing platform to move in a Z axle to repeat printing of one layer until the printing is finished. The device comprises two laser unit light spot focusing device and lens compositions, the liquid pool, the printing platform and a two-dimensional displacement driving device. The device and the method realize precise printing of the rock hole model and quick manufacturing of the model, shorten the model manufacturing time and reduce the economic cost under the precondition of guaranteeing accuracy of the hole model, improve the printing equipment, and further improve the printing precision.
Description
Technical field:
The present invention relates to a kind of 3D printing shaping technology in kind, be specifically related to the apparatus and method that a kind of 3D prints rock pore structure model.
Background technology:
Oil-gas exploration and development field, the world extends from conventional gas and oil to unconventionaloil pool, and exploration and the research of unconventionaloil pool come into one's own.Due to the complexity of hole pore passage structure, arrangement mode, pore-size distribution, the important parameter permeability of exploration and development and saturation degree are difficult to characterize, assessment before exploration exploitation is difficult to ensure accurately, generally in research at present improves the quality of data acquisition, the precision of data processing by modeling technology.Make the blowhole model of reservoir, by summing up reservoir rule to the research of reservoir model, to carry out follow-up study very necessary.
3D printing technique, based on mathematical model file, carrys out constructed object by the mode successively printed, have that the accuracy of manufacture is high, numerical DC speed, manufacture fast, one-shot forming simplifies fabrication schedule, material loss is few etc. advantage.Be different from traditional manufacturing technology, precision is high, realizes the model manufacturing of labyrinth, ensures that rock pore structure model internal structure is mated with in kind, guarantees that pore model is representative; The individual character manufacturing of model, without the need to the manufacturing process of complexity, saves economy and the time cost of modelling.
Based on the 3D printing technique of micro-stereolithography, through successively manufacturing, the mode of multiple-layer stacked completes high-resolution three-dimensional body manufacture.Through the development of more than ten years, this technology is progressively applied to the industrial technical field manufacturing micro-component.Micro stereo lithography is mainly divided into line sweep Micro stereo lithography and integral microstereolithography technology: line sweep Micro stereo lithography is that light beam manufactures according to data point by point scanning solidification light-sensitive material, require that print platform can move along XYZ three-dimensional, print speed is relatively slow; Integral microstereolithography technology is then dynamically use the adjustment of dynamic mask device to obtain the consistent light beam of resin bed shape to be polymerized to light beam, once irradiating liquid resin can complete the solidification of one deck, print platform only need be mobile along Z week, print speed is fast, but the dynamic mask device that equipment increases, not only increase cost of manufacture, too increase the complexity of control program and equipment; When ensureing printing precision, the gearshift of print platform is high to required precision, increases manufacture difficulty, increases equipment cost.
The laser instrument of curing photosensitive resin certain volume can be had owing to possessing higher-wattage, the LASER Light Source spacing of launching when being arranged side by side is much larger than unconventional reservoir blowhole size, though utilize this device to improve print speed as printer curing light source, limit printing precision.
Summary of the invention:
The object of the invention is to meet quickening print speed simultaneously to solve existing technology and save the problem of equipment cost and provide a kind of 3D to print the apparatus and method of rock pore structure model.Realize precisely making rock pore structure, ensure that the representativeness of model improves print speed simultaneously; Equipment is improved, realizes the raising of equipment precision simultaneously, thus save equipment cost, realize high accuracy printing speed rock pore structure.
The present invention realizes above-mentioned purpose by following technological means:
There is provided a kind of 3D to print the apparatus and method of rock pore structure model, it is characterized in that, comprise the following steps:
Step 1) use CAD modeling according to the structural parameters of required blowhole and be converted to STL form;
Step 2) computer is by step 1) the 3D model file that obtains carries out layered shaping and selects print parameters;
Step 3) computer is according to individual-layer data control 3D printing equipment, and control plane displacement drive (5) makes print platform (6) and liquid cell (14) keep geo-stationary to move the printing of one deck along L direction of principal axis;
Step 4) control Z-direction displacement drive (2) print platform (6) is moved at Z axis, repeat the printing of one deck until complete printing and complete.
In technique scheme, described print parameters is print speed, prints thickness, prints compactedness, printed material.
In technique scheme, described printed material is photosensitive resin.
In technique scheme, described 3D printing equipment comprises: two laser array (11), hot spot focusing arrangement (12) and lens combinations and liquid cell (14), print platform (6) and two-dimension displacement drive unit thereof.
In technique scheme, described laser array (11) comprises N number of laser instrument (7) and a light source shelf (1), laser instrument (7) is in a row to be arranged on light source shelf (1) closely, described light source shelf (1) mutually vertically places and respectively just to the XY direction of base, the plane of formation is parallel to base and the side of being located thereon.
In technique scheme, described hot spot focusing arrangement (12) is convex lens, or GRIN Lens, or Fresnel Lenses, or diaphragm, is arranged at below laser instrument.
In technique scheme, described lens combination is arranged at laser array (11) below, comprise plus lens (9) and divergent lens (10), plus lens (9) is installed on directly over divergent lens (10), plus lens (9) is convex lens, or Fresnel Lenses, or GRIN Lens, divergent lens (10) is concavees lens, or convex lens, or GRIN Lens, the arrangement mode of lens is that the right focus of convex lens and concavees lens focus are symmetrical about divergent lens (10), or the focus of the focus of Fresnel Lenses and concavees lens is symmetrical about divergent lens (10), or the focus of the focus of GRIN Lens and concavees lens is symmetrical about divergent lens (10), or the left focus of convex lens right focus convex lens less with another focal length overlaps, or the right focus of convex lens overlaps with the focus of Fresnel Lenses and is positioned at directly over it, or the right focus of convex lens overlaps with the focus of GRIN Lens and is positioned at directly over it, or at least two group group lens combination superposition place.
In technique scheme, described print platform (6) is installed in liquid cell, described two-dimentional drive unit has diagonal and L direction of principal axis two frees degree of Z-direction and print platform (6), and Z axis displacement drive (2) and L in-plane displancement drive unit (5) are set respectively in both direction, wherein, Z axis displacement drive (2) is installed on below print platform, and L in-plane displancement drive unit (5) is installed on liquid cell (14) below.
Beneficial effect of the present invention is: present invention achieves precise Printing blowhole model, quick Fabrication model, time and the financial cost of modelling is reduced under guarantee model accurately prerequisite, and improve printing device, multiple light courcess is adopted to shorten the time-write interval, light source group, through being used for the lens combination of precision controlling, reducing spot separation, improves printer precision.Realize the pore structure printing of micron, submicron-scale.
Accompanying drawing illustrates:
Fig. 1 is printing device schematic diagram;
Fig. 2 is the action principle figure of the lens combination of the device of the 3D printing rock pore structure model that the embodiment of the present invention 1 provides;
Fig. 3 is the action principle figure of the lens combination of the device of the 3D printing rock pore structure model that the embodiment of the present invention 2 provides;
Fig. 4 is the action principle figure of the lens combination of the device of the 3D printing rock pore structure model that the embodiment of the present invention 3 provides;
Fig. 5 is the schematic flow sheet that 3D provided by the invention prints the method for rock pore structure model
Wherein: 1-light source shelf; 2-Z direction of principal axis displacement drive; 3-light source shelf interface; 4-light source support bar; 5-in-plane displancement drive unit; 6-print platform; 7-laser instrument; 8-small light spot laser; 9-divergent lens; 10-plus lens; 11-laser array; 12-hot spot focusing arrangement; 13-large spot laser; 14-liquid cell.
Detailed description of the invention:
Below in conjunction with drawings and Examples, the invention will be further described.
Embodiment 1
See shown in Fig. 1 and Fig. 2, a kind of 3D prints the apparatus and method of rock pore structure model, when installing of the present invention, comprises following steps:
Step 1) install laser array (11) be made up of N number of laser instrument (7) and light source shelf (1), the N number of laser instrument (7) placed at equal intervals is installed on light source shelf (1), N be more than or equal to 2 integer.
Step 2) a hot spot focusing arrangement (12) is installed immediately below each laser instrument (7), for large spot laser (13) reduced is become small light spot laser (8);
Step 3) assemble the lens combination that can realize laser spacing and reduce, plus lens (9) is convex lens, be placed on immediately below laser instrument (7) placed side by side, realize the object converging light source, divergent lens (10) is concavees lens, be placed on immediately below plus lens (9), the light of convergence is made again to reach parallel through the disperse function of lens, the interval of the laser (2) after adjustment is reduced to d2, when combination two groups of lens, the line of focus, plus lens (9) primary optical axis and divergent lens (10) primary optical axis need be met and all overlap.
Step 3) the yardstick needs of pore structure model mesopore that print as required, select the lens of proper focal length.First the spacing d1 between laser (8) that laser instrument (7) launches is measured, according to above-mentioned installation method, d2 meets d2=f2/f1*d1, wherein, f1 is the focal length of plus lens (9), and f2 is the focal length of divergent lens (10), and the half according to minimum aperture diameter regulates d2, adjacent two laser faculas are had a common boundary, between the laser facula of interval two, is interposed between the yardstick of pore size.Illustrate, the pore structure printed requires that installing laser instrument (7) during the half d2=100 μm of minimum pore diameter makes its interval d1=1cm, the plus lens (9) selected is convex lens, focal distance f 1=10cm, divergent lens (10) is convex lens, focal distance f 2=1cm.
Step 4) combination two row's laser instrument (11), N number of laser instrument (7) is vertically mounted to side by side mutually on top light source shelf interface (3) of the light source support bar (4) vertical with print platform (6).And lens combination being arranged on immediately below laser instrument combination (11), during installation, the focus of plus lens (9) and the focus of divergent lens (10) are about divergent lens (10) symmetry, and light source assembling is complete.
Shown in Figure 5, when using of the present invention, comprise following steps:
Step 1): the structural parameters according to required blowhole use CAD modeling and are converted to STL form;
Step 2): use computer to model layers process and select print parameters;
Step 3): computer is according to individual-layer data control 3D printer, and control plane displacement drive (5) makes print platform (6) move the printing of one deck along L direction of principal axis;
Step 4): control print platform (6) and move at Z axis, repeat the printing of one deck until complete the printing of model.
Embodiment 2
Shown in Figure 3, a kind of 3D prints the apparatus and method of rock pore structure model, basic structure is identical with embodiment 1 with basic skills, when difference is to install of the present invention, plus lens (9) is convex lens, divergent lens (10) is concavees lens, and during installation, during lens combination, the right focus of plus lens (9) overlaps with the left focus of divergent lens (10).
Embodiment 3
Shown in Figure 4,3D prints apparatus and method for rock pore structure model, and each described lens combination unit basic structure is identical with embodiment 1 with basic skills, when difference is to install of the present invention, adopt the lens combination unit that two groups such, the optical axis of the lens comprised all overlaps.
The present invention improves prior art, therefore has used for reference prior art in implementation process, as space is limited, is not described in detail prior art part; The NM technology part of every the present invention, all can adopt existing techniques in realizing.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; within the spirit and principles in the present invention all; the equivalent structure utilizing description of the present invention and accompanying drawing content to do or the conversion of equivalent flow process; directly or indirectly be used in the technical field that other are relevant, all should be included within protection scope of the present invention.
Claims (8)
1. 3D prints apparatus and method for rock pore structure model, and it is characterized in that, described method comprises:
Step 1) use CAD modeling according to the structural parameters of required blowhole and be converted to STL form;
Step 2) computer is by step 1) the 3D model file that obtains carries out layered shaping and selects print parameters;
Step 3) computer is according to individual-layer data control 3D printing equipment, and control plane displacement drive (5) makes print platform (6) and liquid cell (14) keep geo-stationary to move the printing of one deck along L direction of principal axis;
Step 4) control Z-direction displacement drive (2) print platform (6) is moved at Z axis, repeat the printing of one deck until complete printing and complete.
2. method according to claim 1, is characterized in that, described print parameters is print speed, prints thickness, prints compactedness, printed material.
3. method according to claim 2, is characterized in that, described printed material is photosensitive resin.
4. method according to claim 1, it is characterized in that, described 3D printing equipment comprises: two laser array (11), hot spot focusing arrangement (12) and lens combinations and liquid cell (14), print platform (6) and two-dimension displacement drive unit thereof.
5. method according to claim 4, it is characterized in that, described laser array (11) comprises N number of laser instrument (7) and a light source shelf (1), laser instrument (7) is in a row to be arranged on light source shelf (1) closely, described light source shelf (1) mutually vertically places and respectively just to the XY direction of base, the plane of formation is parallel to base and the side of being located thereon.
6. method according to claim 4, is characterized in that, described hot spot focusing arrangement (12) is convex lens, or GRIN Lens, or Fresnel Lenses, or diaphragm, is arranged at below laser instrument.
7. method according to claim 4, it is characterized in that, described lens combination is arranged at laser array (11) below, comprise plus lens (9) and divergent lens (10), plus lens (9) is installed on directly over divergent lens (10), plus lens (9) is convex lens, or Fresnel Lenses, or GRIN Lens, divergent lens (10) is concavees lens, or convex lens, or GRIN Lens, the arrangement mode of lens is that the right focus of convex lens and concavees lens focus are symmetrical about divergent lens (10), or the focus of the focus of Fresnel Lenses and concavees lens is symmetrical about divergent lens (10), or the focus of the focus of GRIN Lens and concavees lens is symmetrical about divergent lens (10), or the left focus of convex lens right focus convex lens less with another focal length overlaps, or the right focus of convex lens overlaps with the focus of Fresnel Lenses and is positioned at directly over it, or the right focus of convex lens overlaps with the focus of GRIN Lens and is positioned at directly over it, or at least two group group lens combination superposition place.
8. method according to claim 4, it is characterized in that, described print platform (6) is installed in liquid cell, described two-dimentional drive unit has diagonal and L direction of principal axis two frees degree of Z-direction and print platform (6), and Z axis displacement drive (2) and L in-plane displancement drive unit (5) are set respectively in both direction, wherein, Z axis displacement drive (2) is installed on below print platform, and L in-plane displancement drive unit (5) is installed on liquid cell (14) below.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610012254.4A CN105479756A (en) | 2016-01-08 | 2016-01-08 | Device and method for 3D printing of rock hole structural model |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610012254.4A CN105479756A (en) | 2016-01-08 | 2016-01-08 | Device and method for 3D printing of rock hole structural model |
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| CN201610012254.4A Withdrawn CN105479756A (en) | 2016-01-08 | 2016-01-08 | Device and method for 3D printing of rock hole structural model |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106780724A (en) * | 2016-12-21 | 2017-05-31 | 中国石油天然气股份有限公司 | Obtain the method and apparatus of leakage channel model |
| CN108252336A (en) * | 2018-02-01 | 2018-07-06 | 重庆大学 | A kind of method that discontinuous body three-dimensional slope indoor model test is built by 3D printing technique |
| CN111381381A (en) * | 2018-12-29 | 2020-07-07 | 上海联泰科技股份有限公司 | Optical system, optical system using method and 3D printing equipment |
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| CN108252336A (en) * | 2018-02-01 | 2018-07-06 | 重庆大学 | A kind of method that discontinuous body three-dimensional slope indoor model test is built by 3D printing technique |
| CN111381381A (en) * | 2018-12-29 | 2020-07-07 | 上海联泰科技股份有限公司 | Optical system, optical system using method and 3D printing equipment |
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Application publication date: 20160413 |
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