CN203485446U - Surface molding 3D (three-dimensional) printing system - Google Patents
Surface molding 3D (three-dimensional) printing system Download PDFInfo
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- CN203485446U CN203485446U CN201320568989.7U CN201320568989U CN203485446U CN 203485446 U CN203485446 U CN 203485446U CN 201320568989 U CN201320568989 U CN 201320568989U CN 203485446 U CN203485446 U CN 203485446U
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- print platform
- holding box
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- driver element
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- 238000000465 moulding Methods 0.000 title claims abstract description 16
- 238000007639 printing Methods 0.000 title abstract description 16
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- 239000000463 material Substances 0.000 claims abstract description 16
- 238000000016 photochemical curing Methods 0.000 claims abstract description 9
- 238000003825 pressing Methods 0.000 claims description 7
- 238000006073 displacement reaction Methods 0.000 claims description 2
- 238000010146 3D printing Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 10
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Abstract
The utility model discloses a surface molding 3D (three-dimensional) printing system, which comprises a liquid containing box, a printing platform, a printing platform drive unit, an image projection unit and a control unit; the liquid containing box is used for containing a liquid photo-curing material; the printing platform is provided with a working station positioned in the liquid containing box; the printing platform drive unit is connected with the control unit; the image projection unit comprises a light source, digital miniature lens equipment and a focusing lens; the digital miniature lens equipment is connected with the control unit; the focusing lens is used for focusing a projection image of a digital miniature lens on the printing platform; the control unit is used for controlling the digital miniature lens equipment to project according to an interface graph of a product to be printed, and controls the drive unit to drive the printing platform to move vertically in the liquid containing box. The surface molding 3D printing system has the advantages of high efficiency, high accuracy and low cost.
Description
Technical field
The utility model relates to rapid shaping technique field, especially relates to a kind of moulding 3D system.
Background technology
3D prints (3D Printing) and by Jim Bred and the Tim Anderson of Massachusetts Institute Technology, is proposed the earliest, they based on the logical ink-jet printer of a Daepori design one can bonding powder equipment, this equipment also becomes 3D printer the earliest.The lamination of holding at Washington, DC in March, 2009 is manufactured in development seminar (Roadmap for Additive Manufacturing (RAM) Workshop), formal definite lamination manufacture (Additive Manufacturing that uses, initialism is AM) word calls 3D printing technique, and made planning with regard to the development of coming 10 years rapid shaping technique.Main lamination manufacturing technology comprises Selective Laser Sintering (Selective laser sintering at present, initialism is SLS), stereolithography technology (Stereolithography, SLA), fusion sediment forming technique (Fused Deposition Modeling, initialism is FDM) etc.Selective Laser Sintering is used high energy laser beam to carry out sintering to various dusty materials, and selected dusty material comprises plastics, metal, pottery, glass etc.Stereolithography technology adopts the laser beam irradiation liquid photosensitive resin with certain light intensity, and resin solidify to form rapidly required form under illumination.The 3D system company of the U.S. has stronger research and development strength in this field in the world at present.Fusion sediment forming technique is to push by shower nozzle the thermoplastic material moulding being heated after fusing, and this technology is by the Stratasys company utility model of the U.S., and it has the larger market advantage in this field.In addition, because FDM has the advantage that cost is low, the 3D former on domestic market be take this technology as main.Lamination manufacturing technology (AM) has been widely used in the fields such as automobile, household electrical appliance, computer, Aero-Space, medical science, building, scientific research in USA and Europe.AM technology has developed and has formed a new industry, and statistics shows, over nearly 3 years, the marketing of AM is with 59% speed increase.
But the introduction of the key equipment of rapid shaping technique is at present expensive, maintenance of equipment price is high, the shortcoming of low-response.The making precision of low price equipment is very undesirable, for example: the equipment of 1500 dollars of left and right, its precision the chances are 0.25mm.
Utility model content
Technical problem to be solved in the utility model is the defect that overcomes prior art, and a kind of high accuracy, low cost, high efficiency moulding 3D print system are provided.
Technical problem of the present utility model is solved by following technological means:
A moulding 3D print system, comprising: liquid holding box, print platform, print platform driver element, image projection unit and control module;
Described liquid holding box is used for holding liquid photo-curing material;
Described print platform has the working position that is arranged in described liquid holding box;
Described control module and described print platform driver element are the miniature eyeglass equipment connection of described numeral;
Described print platform driver element is connected with described print platform, for driving described print platform to move up and down at described liquid holding box;
Described image projection unit comprises light source, digital miniature mirror device and condenser lens, the miniature mirror device of described numeral is used for utilizing light source to form projected image, and described condenser lens is for focusing on described print platform by the projected image from the miniature eyeglass of numeral.
Preferably:
Also comprise presser device, this presser device comprises transparent pressing plate, and this transparent pressing plate is fixed in described liquid holding box.
The surface that described presser device contacts with liquid level is provided with antiblocking layers.
Described individual layer print thickness is 10-100 micron, and each displacement of described print platform is 10-100 micron.
The power set of described driver element are stepper motor.
Compared with prior art, the utility model utilizes optical projection system to carry out successively projection to the sectional view of product, coordinate print platform moving up and down to realize to take the 3D printing that " face " be moulding unit, compare with the mode that prior art is carried out pointwise printing by Electromechanical Control shower nozzle, have the following advantages: 1), without adopting complicated controller electric system, can significantly reduce equipment cost; 2) owing to being to print by perspective plane moulding, therefore, the mode of printing with respect to pointwise has higher efficiency, and it is only 20% of common 3D printer that the utility model is printed the required time of identical product; 3), because product is successively moulding, its precision is determined by projected image, thereby can realize easily the high accuracy of error within the scope of 0.01mm and print.
In preferred version, presser device is set, for overcoming the liquid level out-of-flatness of expanding and causing due to the surface tension of fluent material and liquid level, thereby the product surface of avoiding printing raises up, the problem of (as shown in Figure 6), obtains the smooth 3D printed product (as shown in Figure 7) of upper surface.Further preferred version arranges antiblocking layers below presser device, can avoid cross section parts and the presser device bonding of moulding.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the print system of the utility model specific embodiment;
Fig. 2 is the Method of printing flow chart of the utility model specific embodiment;
Fig. 3 is the structure chart of the print system of the utility model specific embodiment;
Fig. 4 is the structure chart of the cambered plate of Fig. 3;
Fig. 5 is the structure chart of the print system of another specific embodiment of the utility model;
Fig. 6 is the structure chart that does not use the printed product of presser device;
Fig. 7 is the structure chart that uses the printed product after presser device.
The specific embodiment
Preferred embodiment the utility model is described in further detail to contrast accompanying drawing combination below.
As shown in Figure 1, the present embodiment provides a kind of moulding 3D print system, and for implementing aforesaid Method of printing, this 3D print system comprises: liquid holding box, print platform, print platform driver element, image projection unit and control module.Liquid holding box is used for holding liquid photo-curing material; Print platform has the working position that is arranged in liquid holding box; Control module is connected with print platform driver element and image projection unit; Print platform driver element is connected with print platform, for driving described print platform to move up and down at described liquid holding box; Described image projection unit comprises light source, digital miniature mirror device and condenser lens, the miniature mirror device of described numeral is connected with described control module, be used for utilizing light source to form projected image, described condenser lens is for focusing on described print platform by the projected image from the miniature eyeglass of numeral.Described control module 600 can be PC or single-chip microcomputer, is preferably equipped with touch-screen 602, for controlling image projection unit and print platform driver element.Preferably can be used for carrying out projection according to digital miniature mirror device described in the interface Graph Control of the product that will print, and control print platform described in described drive unit drives and move up and down in described liquid holding box.
The more concrete preferred embodiment of of the present utility model moulding 3D print system as shown in Figure 3, it also comprises the frame for fixing aforementioned all parts, and this frame is mainly by base 501, top control cabinet 502 with as top control cabinet 502 being fixed on to the column 503 of the fixed part on base 501.Liquid holding box 100 is arranged on base 501; Projector equipment 400 is arranged in top control cabinet 502, and control cabinet 502 bottoms in top offer the hole for the projection lens projects projected image of projector equipment 400.
The function of print platform driver element is to drive print platform 200 to move up and down in liquid holding box 100, and those skilled in the art can adopt existing technical scheme to be achieved.As preferred version, the print platform driver element of the present embodiment comprises drive motors 301, for print platform connector 302, movement locus control assembly (not shown) and the slide block (not shown) of link print platform and drive motors 301.The effect of movement locus control assembly is motion guide, and it has the movement locus moving up and down for slide block, and this movement locus can be realized by modes such as roller screw mandrel, slide rail, chutes; Corresponding, slide block is the parts for coordinating with movement locus control assembly, itself and drive motors are connected to the movement locus along movement locus control assembly under the driving of drive motors and move up and down, slide block is also fixedly connected with the first end of print platform connector 302, the second end of print platform connector 302 is connected with print platform 200, thereby print platform 200 can be moved up and down under the driving of drive motors.As shown in Figure 3, the fixed part of the present embodiment adopts the form of column, and the lower end of column 503 is fixed on base 501, and upper end is for fixed top control cabinet 502; Meanwhile, column 503 adopts hollow structure, and the inside of its hollow can be used for installing drive motors (being preferably stepper motor), trough, also can be used for installing the ball screw as movement locus control assembly simultaneously.Obviously, the fixed part of the column form that the present embodiment adopts has advantages of simple for structure, but the utility model is not limited to this scheme.
As shown in Figure 4, the print platform connector 302 of the present embodiment is a cambered plate, it is formed through three bendings by a sheet material, sheet material bottom bending is formed for supporting the fixedly support portion 3021 of print platform 200, the bending of sheet material top forms and extends to the horizontal connecting portion 3022 in column 503, and the end of horizontal connecting portion 3022 again bending is downward or upward formed for the slide block fixed part 3023 fixing with slide block.Those skilled in the art obviously can also realize being connected of print platform and slide block by other the print platform connector 302 of form, the utility model is also not limited to aforesaid concrete scheme, but with respect to the adoptable connected mode of prior art, the design of aforementioned cambered plate has following advantage: 1) this cambered plate can be close to the setting of liquid holding box sidewall, can avoid stopping projection ray; 2) this cambered plate is provided with the support portion 3021 parallel with print platform 200 surfaces and the slide block fixed part 3023 parallel with slider side wall simultaneously, thereby, even if adopt very thin sheet material, it is also very convenient, firm to install, and avoids adopting liquid level in liquid holding box being impacted in moving up and down process compared with heavy-gauge sheeting.
As shown in Figure 5, presser device 700(not shown top control cabinet and interior parts thereof also can be set) in the liquid holding box 100 of the present embodiment, preferably the position of presser device 700 in described container is all adjustable on all around and above-below direction, for ease of clearly visible, the presser device shown in Fig. 5 is not for packing the state in container into.The area of presser device is preferably greater than the area of described projected image, and the whole transmissions of described projected image are within the coverage rate of described presser device.It comprises transparent pressing plate, and the surface that this transparent pressing plate contacts with liquid level is preferably provided with antiblocking layers example, as prevent adhesion film or Antiblock coating, concrete as: perfluor plastic sheeting or pellosil coating.Figure 6 shows that the printed product structure chart that does not use presser device, its upper surface raises up; Figure 7 shows that the structure chart that uses the printed product after presser device, its upper surface is smooth.
The miniature mirror device DMD of numeral described herein is a kind of MEMS equipment, up to a million small eyeglasses, consists of, and these eyeglasses can be to surpass the independent folding of frequency of 5KHz under the control of computer.Light source is after sending a branch of visible ray, and this visible ray is by the upper miniature lens reflecting of opening of DMD, and the miniature eyeglass of not opening can reverberation art.A miniature eyeglass forms a pixel in last reflected image.DMD is widely used on projecting apparatus, and it is with low cost.
As shown in Figure 2, the face moulding 3D Method of printing of the present embodiment comprises the following steps:
S1, the product that will print is carried out to 3D modeling, the threedimensional model building up is divided into multilayer sectional view.3D modeling can be made by existing various business softwares, take CAD as example, can make threedimensional model by CAD, and stores with the form of stl file, then stl file is cut into slices and is obtained multilayer interface figure.The quantity of tangent plane with want the Size dependence of printed product, the thickness of preferably controlling every layer of printing in 10-100 micrometer range with assurance printing precision.
S2, in liquid holding box, fill the liquid photo-curing material of scheduled volume, print platform is placed in to liquid holding box and print platform is positioned under the liquid level of liquid photo-curing material, and the distance of the initial position of print platform and the liquid level of liquid photo-curing material equals individual layer print thickness.Practice after deliberation, the surface tension of liquid material, liquid level expand and may cause cross section parts and the product surface printed to raise up, thereby affect shape of product, therefore, this step preferably arranges transparent presser device for suppressing liquid level above the liquid level of liquid photo-curing material, guarantees the surfacing of every layer cross section parts.The surface that presser device contacts with liquid level preferably arranges antiblocking layers, for example prevent adhesion film or Antiblock coating, concrete as: perfluor plastic sheeting or pellosil coating.
S3, (English name is Digital Micromirror Device to utilize digital miniature mirror device, initialism is DMD) the ground floor sectional view of described sectional view is projected to print platform, thus the liquid photo-curing material that makes to be positioned at print platform top solidify to form the ground floor cross section parts of product.
S4, control print platform move down the distance of individual layer print thickness, and then according to the mode projection second layer interface figure of step S3, print the second layer cross section parts that form product, so loop control print platform and digital miniature mirror device until product printed.
Above content is in conjunction with concrete preferred embodiment further detailed description of the utility model, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of ordinary skill in the field; without departing from the concept of the premise utility; can also make some being equal to substitutes or obvious modification, and performance or purposes identical, all should be considered as belonging to protection domain of the present utility model.
Claims (5)
1. a face moulding 3D print system, is characterized in that, comprising: liquid holding box, print platform, print platform driver element, image projection unit and control module;
Described liquid holding box is used for holding liquid photo-curing material;
Described print platform has the working position that is arranged in described liquid holding box;
Described control module and described print platform driver element and described image projection unit equipment connection;
Described print platform driver element is connected with described print platform, for driving described print platform to move up and down at described liquid holding box;
Described image projection unit comprises light source, digital miniature mirror device and condenser lens, the miniature mirror device of described numeral is used for utilizing light source to form projected image, and described condenser lens is for focusing on described print platform by the projected image from the miniature eyeglass of numeral.
2. 3D print system according to claim 1, is characterized in that: also comprise presser device, this presser device comprises transparent pressing plate, and this transparent pressing plate is fixed in described liquid holding box.
3. 3D print system according to claim 2, is characterized in that: described transparent pressing plate lower surface is provided with antiblocking layers.
4. according to the 3D print system described in claim 1,2 or 3, it is characterized in that: each displacement of described print platform is 10-100 micron.
5. 3D print system according to claim 4, is characterized in that: the power set of described driver element are stepper motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320568989.7U CN203485446U (en) | 2013-09-13 | 2013-09-13 | Surface molding 3D (three-dimensional) printing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320568989.7U CN203485446U (en) | 2013-09-13 | 2013-09-13 | Surface molding 3D (three-dimensional) printing system |
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| Publication Number | Publication Date |
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| CN203485446U true CN203485446U (en) | 2014-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320568989.7U Expired - Lifetime CN203485446U (en) | 2013-09-13 | 2013-09-13 | Surface molding 3D (three-dimensional) printing system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103448249A (en) * | 2013-09-13 | 2013-12-18 | 张靖 | Surface molded 3D (Three Dimensional) printing method and system |
| CN104924617A (en) * | 2015-06-19 | 2015-09-23 | 西安交通大学 | Liquid dripping type photo-curing following printing system and liquid dripping type photo-curing following printing method |
| CN106881862A (en) * | 2015-12-11 | 2017-06-23 | 上海联泰科技股份有限公司 | The 3D printing method and 3D printing device of face exposure shaping |
| CN109795105A (en) * | 2019-02-27 | 2019-05-24 | 深圳摩方新材科技有限公司 | 3 D-printing device and Method of printing |
| CN109912753A (en) * | 2019-02-27 | 2019-06-21 | 深圳摩方新材科技有限公司 | High-precision low layer thickness high performance 3 d printed photosensitive resin and its preparation and application |
-
2013
- 2013-09-13 CN CN201320568989.7U patent/CN203485446U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103448249A (en) * | 2013-09-13 | 2013-12-18 | 张靖 | Surface molded 3D (Three Dimensional) printing method and system |
| CN103448249B (en) * | 2013-09-13 | 2016-06-15 | 张靖 | A kind of face molding 3D Method of printing and system |
| CN104924617A (en) * | 2015-06-19 | 2015-09-23 | 西安交通大学 | Liquid dripping type photo-curing following printing system and liquid dripping type photo-curing following printing method |
| CN104924617B (en) * | 2015-06-19 | 2017-06-27 | 西安交通大学 | A kind of dribble dropping photocuring follows print system and method |
| CN106881862A (en) * | 2015-12-11 | 2017-06-23 | 上海联泰科技股份有限公司 | The 3D printing method and 3D printing device of face exposure shaping |
| CN109795105A (en) * | 2019-02-27 | 2019-05-24 | 深圳摩方新材科技有限公司 | 3 D-printing device and Method of printing |
| CN109912753A (en) * | 2019-02-27 | 2019-06-21 | 深圳摩方新材科技有限公司 | High-precision low layer thickness high performance 3 d printed photosensitive resin and its preparation and application |
| CN109912753B (en) * | 2019-02-27 | 2022-09-20 | 深圳摩方新材科技有限公司 | High-precision, low-layer-thickness and high-performance 3D printing photosensitive resin and preparation and use methods thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170807 Address after: 312000, Zhejiang Shaoxing Keqiao Economic Development Zone, West Ring Road, No. 586 Science Park set sail building Patentee after: ZHEJIANG XUNSHI TECHNOLOGY Co.,Ltd. Address before: 312000 Ping County Industrial Park, Shaoxing, Zhejiang, Shaoxing Co-patentee before: Jin Liang Patentee before: Zhang Jing Co-patentee before: Song Xuan Co-patentee before: Wang Bin Co-patentee before: Pan Yayue |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140319 |