TWM550666U - Multi-material stereolithography modeling system with real-time image scanning - Google Patents

Description

Multi-material light-curing stereoscopic modeling system for instant image scanning

The present invention relates to a 3D (stereo) printing technology, in particular to a photo-curing stereoscopic modeling system capable of real-time image scanning and outputting three-dimensional printing information, and manufacturing a three-dimensional object with a light-curing material.

In recent years, with the development of science and technology, many different methods of constructing three dimensional (3D) models using additive manufacturing techniques such as layer-by-layer construction models have been proposed. In general, the additive manufacturing technique converts design data of a 3D model constructed using software such as computer aided design (CAD) into a plurality of thin (quasi-two-dimensional) cross-sectional layers that are continuously stacked. At the same time, many technical means for forming a plurality of thin cross-section layers have also been proposed. For example, the printing module of the printing device can generally move along the XY plane above the pedestal according to the space coordinate XYZ constructed by the design data of the 3D model, so that the construction material forms the correct cross-sectional layer shape.

The rapid prototyping technology used today is also different. The rapid prototyping technology currently used in the industry mainly includes the following technologies: Color-Jet Printing (CJP, or Binder Jetting) technology, fused deposition Fused Deposition Modeling (FDM) technology, Stereo Lithography Apparatus (SLA) technology, Multi-Jet Modeling (MJM) technology, or laser sintered solid powder molding ( Selective Laser Sintering, SLS) technology, etc., but not limited to this.

Stereoscopic image scanning technology and stereoscopic display technology are the focus of the current 3D (Three-dimensional) printing technology, scanning the objects to be printed, and generating appropriate stereoscopic image data as a 3D printing image source, and by computer and With the aid of the printer, the contents of the stereo image are printed out of the physical 3D model. Therefore, the technique of scanning objects and stereoscopic images will be related to the ability to print accurate 3D models.

For example, a three-dimensional modeling device of Stereolithography is a technique for forming a three-dimensional object by solidifying a building material through a light source, and the printing module is adapted to be immersed in a liquid molding material contained in a tank, and the light source module The group irradiates the liquid molding material as a building material on the XY plane so that the liquid molding material is solidified and stacked on a moving platform. In this way, by moving the platform along the axial direction Z layer by layer, the liquid molding material can be solidified layer by layer and stacked to form a body object. It should be noted that when the light source is disposed under the tank, the printed object that has just been solidified by the light source adheres to the bottom of the tank. In order to enable the liquid molding material to continue to be layer-by-layer cured and stacked, the three-dimensional printing apparatus needs to separate the three-dimensional object in the printing from the bottom of the tank by swinging the groove.

However, the traditional stereo image capture technology requires complicated steps and expensive cost. Currently, the common stereo image capture method is also performed by using a stereo camera with a dual lens. As long as the shooting parameters of the two lenses are adjusted to be consistent, A stereoscopic image with good imaging results can be taken. However, the architecture of such a stereo camera must be configured with two sets of lenses and sensors, the accuracy of which is susceptible to ambient light, and the cost of the software is high; the other way is to use a single-lens camera and use a panning camera. Shooting. However, the biggest problem in this way is stability. When the amount of horizontal displacement of the user is not controlled, it is easy to produce a result of excessive or too small parallax, which in turn affects the imaging effect of the stereoscopic image.

Moreover, most of the current 3D printing and forming technologies on the market can only print monochrome or multi-color objects. The color of the raw material cannot be changed with the design, and it is impossible to print a full-color or true-color object that is consistent with the design. Furthermore, the base of the molding material descends along the Z axis, and the formed object is formed. The prototype and its supporting materials are stacked from bottom to top. As the height increases, the area and shape of the profile of the layer change. When the shape changes greatly, the upper layer cannot provide sufficient positioning and support for the current layer. In addition, the line platform may also be along the Z. During the process of shaft lifting, the displacement in the XY plane is generated, which causes the forming beam to not accurately hit the desired position and affects the molding quality. To solve these problems, it is necessary to design some auxiliary structures - "positioning" and "support". Subsequent layers provide positioning and support to ensure smooth implementation of the forming process. Therefore, how to realize multi-material model and multi-color 3D printing, while taking into account quality, positioning and support, is still the main subject of developers in this field.

In view of this, the job is due to the lack of knowledge in the prior art, and through careful experimentation and research, and a perseverance, the idea is finally conceived to overcome the above problems.

In view of the problems of the prior art, the purpose of the present invention is to provide a multi-material light-curing stereoscopic modeling system for instant image scanning, through a rotary table capable of providing an object to be picked, and two sets of lifting mechanisms coupled with a lifting mechanism The image capturing device is configured to perform an instant image scanning process and output to produce a multi-material printing and quality of the three-dimensional model and to both position and support.

For the purpose of this creation, the present invention proposes a multi-material light-curing stereoscopic modeling system for instant image scanning, which comprises a base, a multi-slot rotary table, at least one molding unit, an image capturing unit and a driving control unit. The pedestal has an accommodating space, and at least one window is open on one side of the pedestal and communicates with the accommodating space; the multi-slot rotary table has a turntable and is disposed on the pedestal as a window provided with the window a side, the turntable provides a body to be picked and placed thereon; the molding unit is coupled to the base and includes a holding plate corresponding to the position of the window, and a first lifting for displaceing the holding plate in an axial direction Institution, a bearing in the accommodating space a second lifting mechanism for displacing the loading platform along the axial direction, a light source module disposed in the accommodating space, and an extension bracket connected to the first lifting mechanism and being freely expandable and contractible: The image capturing unit is connected to the extension bracket and includes a projection module, a camera module and a control module. The projection module projects a structured light pattern on the object to be captured at different angles with respect to a target to be captured; The module is configured to capture a plurality of constituent images of the object to be captured at different angles, and a projection range of the projection module is located in a capture range of the camera module; and the control module electrically outputs the projection module And the camera module controls the projection module to project the structured light pattern, controls the camera module to capture the plurality of constituent images, and provides the plurality of constituent images via an image conversion module to convert the plurality of constituent images. The plurality of constituent images are a stereoscopic image; the driving control unit is respectively connected to the first lifting mechanism, the second lifting mechanism, the multi-slot rotary table and the light source module, and the driving control unit To control the dial to the axis of the axially clockwise or counterclockwise, so that the rotation of the object to be retrieved and positioned to form a plurality of angles to the axial direction.

In an embodiment, the image capturing unit further includes a gravity sensor for sensing a tilt angle information corresponding to each of the plurality of constituent images.

In an embodiment, the camera module and the control module are disposed in a portable electronic device, and the projection module is disposed on an external device, and the external device provides the portable electronic device to be placed and fixed. In it.

In one embodiment, the image conversion module is disposed in a host device, and the control module is coupled to the host device through a network communication interface of the host device for using the plurality of image forming information. Passed to the image conversion module.

In an embodiment, the multi-slot rotary table further includes m positioning ports extending through the turntable and m≧2, each of the positioning ports being equidistant or equiangular along the outer circumference of the turntable and respectively installed with different A container of liquid molding material of color or different materials.

In an embodiment, the driving control unit is configured to control the first lifting mechanism to selectively move the holding plate in the axial direction toward the positioning port or away from the positioning port. The second elevating mechanism is configured to selectively move the stage along the axial direction toward the window or away from the window, and control the center of the positioning port to be displaced to form an overlap with the center of the window in the axial direction.

In one embodiment, the method further includes a tank body for holding the liquid molding material, each of the tank body having: a bottom plate and a wall structure, the bottom plate is transparent or translucent and the light source module is disposed on the a bottom of the bottom plate; the wall structure is disposed around the bottom plate and forms a storage space with the bottom plate to receive the liquid molding material; the multi-material photocuring stereoscopic molding device is sequentially controlled by the driving control unit: a. controlling the plurality The slot rotary table rotates at a specific angular velocity and is positioned when the object to be captured is at various shooting angles, and the process of repeatedly rotating and positioning is continuously performed, so that the camera module captures the plurality of components of different angles of the object to be captured. Image IM2D; b. controlling the multi-slot rotary table to rotate at a specific angular velocity such that a positioning opening thereof moves corresponding to the position of the window; c. controlling the loading table along the axial direction away from the window to be a first Moving the speed a distance, and controlling the container containing the liquid molding material to inject the liquid molding material into the tank body; d. controlling the holding plate to move along the axial direction toward the positioning port at a second speed a distance and a gap with the bottom plate; e. controlling the light source module to emit a light beam to illuminate the bottom plate of the tank body, to photocuring the liquid molding material, forming a photocurable layer on the holding plate Thereafter, the plurality of portions of the multi-material three-dimensional object are solidified one by one by controlling the carrier plate away from the bottom plate; f. controlling the multi-slot rotary table to rotate at the specific angular velocity, so that the other positioning port moves corresponding to the window The position is then repeated b to e or b to f to form the multi-material three-dimensional object that conforms to the contour of the object to be captured.

In an embodiment, wherein the first speed system is in the range of 0.1 to 100 mm/s, and the second speed system is in the range of 0.1 to 100 mm/s, and the specific angular velocity is between 0.1 π and 20 π rad/s. The scope.

In one embodiment, the light source module includes a transparent box body and a light emitting component disposed in the transparent box body. The transparent box system is disposed on a side of the carrying platform adjacent to the window.

In one embodiment, the turntable is a light shield and is driven to rotate through a power motor of the drive control unit, and is sensed by a switch and transmitted back to the drive control unit to determine the position of each of the positioning ports. .

In an embodiment, wherein the multi-groove rotating table has a rotation angle ranging from 0.1 to 360 degrees.

In an embodiment, wherein the contour of the window conforms to the loading platform, the opening area of the window is equal to or larger than the cross-sectional area of the loading platform and the cross-sectional area of the retaining plate, and the cross-sectional area of the retaining plate It is smaller than the opening area of each of the positioning ports.

10‧‧‧Multi-material light-curing stereo modeling system for instant image scanning

100‧‧‧Multi-material light-curing stereoscopic molding device for instant image scanning

110‧‧‧Drive Control Unit

120‧‧‧Base

120a‧‧‧shell

120b‧‧‧ cover

121‧‧‧ accommodating space

122‧‧‧ window

130‧‧‧Molding unit

131‧‧‧Maintenance board

132‧‧‧First lifting mechanism

133‧‧‧ carrying board

134‧‧‧Second lifting mechanism

135‧‧‧Light source module

1351‧‧‧Transparent box

1352‧‧‧Lighting elements

136‧‧‧Extension bracket

140‧‧‧Multi-slot rotary table

141‧‧‧ Turntable

142‧‧‧ positioning port

142a‧‧‧ positioning port

142b‧‧‧ positioning port

142c‧‧‧ positioning port

142d‧‧‧ positioning port

143‧‧‧Power motor

144‧‧‧ switch

150‧‧‧Image capture unit

151‧‧‧Portable electronic device

1510‧‧‧Photography module

1511‧‧‧Display module

1512‧‧‧Control Module

1513‧‧‧Gravity sensor

152‧‧‧External devices

153‧‧‧Projection Module

200‧‧‧ host device

210‧‧‧Operation processor

220‧‧‧Internet communication interface

230‧‧‧Image Conversion Module

90‧‧‧

900‧‧‧Garden space

A1‧‧‧Axial

V1‧‧‧ first speed

V2‧‧‧second speed

ω1‧‧‧Specific angular velocity

P‧‧‧ objects to be picked

S‧‧‧ Liquid molding materials

S1‧‧‧Photocured layer

S2‧‧‧ multi-material three-dimensional objects

IM2D‧‧‧ constitutes an image

IM3D‧‧‧ stereo format image

SLP‧‧‧ structured light pattern

Figure 1 is a block diagram showing the structure of the multi-material light-curing stereoscopic modeling system of the present invention.

FIG. 2 is a schematic view showing the appearance of the multi-material light-curing stereoscopic modeling system of the present invention.

FIG. 3 is a partially exploded perspective view showing the multi-material light-curing stereoscopic modeling system of the present invention.

Figure 4 is a schematic cross-sectional view showing the structure of Figure 2 along the X-axis.

FIG. 5 is a block diagram showing the structure of an embodiment of an image capturing unit.

6a-6b are schematic diagrams showing the appearance of the image capturing unit.

Fig. 7 is a block diagram showing the structure of another embodiment of the image capturing unit.

8a-8f show the operation process of the simple structure of the multi-material light-curing stereoscopic modeling system of the present invention.

9a-9b are schematic diagrams showing the application of the multi-groove rotating disk of the multi-material light-curing stereoscopic modeling system of the present invention.

10a-10b are structural diagrams showing the implementation of the single-axis output printing and the multi-axis output printing of the present invention, respectively.

The detailed description and technical contents of the present invention are described below in conjunction with the drawings, but the drawings are provided for reference and explanation only, and are not intended to limit the creation; and the foregoing and other technical contents and features of the present invention are related to The directional terms mentioned in the following embodiments, such as "upper", "lower", "left", "right", will be clearly shown in the following detailed description of various embodiments with reference to the drawings. "Before", "After", etc., only refer to the direction of the additional illustration. Therefore, the directional terminology used is for the purpose of description and is not intended to limit the present invention. In the following embodiments, the same or similar elements will be given the same or similar elements.

Referring to Figure 1, there is shown a multi-material photocuring stereoscopic molding apparatus of the present invention, in which a right angle coordinate system is provided to facilitate the description of related components. The present invention discloses a multi-material light-curing stereoscopic modeling system 10 for instant image scanning, which comprises a multi-material photo-curing stereoscopic molding device 100 equipped with an image scanning function, and is connected to an external host device 200 to form an instant image scanning. The multi-material photo-curing stereoscopic modeling system 10; hereafter, the following will explain how to capture the 2D image of the object to be scanned by the image and output the image to the multi-material photocuring stereoscopic molding device 100 for the three-dimensional object. Production.

The host device 200 includes an operation processor 210 having an arithmetic processing function, a network communication interface 220, and an image conversion module 230. The multi-material photo-curing stereo modeling device 100 includes a drive control unit 110 and is driven and controlled. Unit 110 can control The multi-material photo-curing stereoscopic molding apparatus 100 has a plurality of components for performing image capturing and performing stereoscopic printing.

As described above, the host device 200 is a device configured with a network communication interface and has a computing function, such as a notebook computer, a tablet computer, a desktop computer, a server, etc., and the present invention is not for the host device 200. The type is limited. In this embodiment, the computing processor 210 of the host device 200 can edit and process a stereoscopic model of a three-dimensional object and transmit corresponding stereoscopic printing information to the multi-material photocuring stereoscopic molding device 100, so that the information can be printed according to the stereoscopic image. The corresponding three-dimensional object is printed; specifically, the three-dimensional model can be a digital stereo image file, which is constructed, for example, by the host device 200 through computer-aided design (CAD) or animation modeling software. to make. The multi-material photo-curing stereoscopic molding device 100 is adapted to print a three-dimensional object according to the three-dimensional printing information transmitted by the host device 200; in detail, the controller 110 controls the multi-material photo-curing stereo according to the three-dimensional printing information. The actuation of the various components of the column 100 sets the molding material overlaid on a platform until the entire solid object is created.

Further, the processor 210 and the drive control unit 110 may be a central processing unit (CPU), or other programmable general purpose or special purpose microprocessor (Microprocessor), digital signal processor (Digital) Signal Processor, DSP), Programmable Controller, Application Specific Integrated Circuits (ASIC), Programmable Logic Device (PLD), or other similar devices, or a combination of these devices. There is no limit to this.

It should be noted that the three-dimensional model will be further compiled and calculated to generate stereoscopic printing information that the multi-material photo-curing stereoscopic modeling device 100 can read and perform the printing function. In detail, the processor 210 may perform a layering process on the stereo model to obtain a cross-sectional profile of the plurality of sliced objects, so that the multi-material photo-curing stereoscopic molding device 100 can be cut according to the cut-off objects. The sliced objects are printed one by one in a contoured manner, and the sliced objects are stacked to form a three-dimensional object. It should be particularly noted that, in this embodiment, the sliced objects constituting the three-dimensional object are divided into a plurality of object parts; the operation processor 210 divides the single-layer object into pieces according to the cross-sectional profile of the single-layer object. Multiple object parts, and obtain the sub-section profile of each object part. In other words, in addition to acquiring the sliced objects by performing the layering process according to the stereo model information, the arithmetic processor 210 performs an additional segmentation process to acquire the sub-sectional profiles of the plurality of object parts constituting the respective sliced objects.

As described above, the arithmetic processor 210 can generate a corresponding control code file according to the sub-sectional contours of the object parts, so that the driving control unit 110 of the multi-material photo-curing stereoscopic modeling apparatus 100 controls the multi-material according to the control code file. The components in the stereoscopic molding apparatus 100 are photocured such that the object portions of the respective sliced articles are formed on the platform. In addition, the control code file is associated with the object parts constituting the respective sliced objects, so that the multi-material photo-curing stereoscopic molding apparatus 100 can print out the respective object parts one by one according to the control code file; therefore, the control code file is The drive control unit 110 can read the stereoscopic print information with which the print function is performed; in this embodiment, the control code file is, for example, a G code file.

Please also refer to FIG. 2 to FIG. 4 , which respectively show the appearance, partial exploded view and sectional structure of the multi-material photo-curing stereoscopic molding device of the instant image scanning of the present invention, and at the same time, a rectangular coordinate system is provided to facilitate Describe the relevant components and their motion states as shown. The multi-material photo-curing stereoscopic modeling system 10 includes a driving control unit 110, a base 120, a molding unit 130, a multi-slot rotary table 140, and an image capturing unit 150. Packing a liquid molding material S of the same or different materials.

The pedestal 120 includes a housing 120a and a cover 120b for closing the housing 120a. An accommodating space 121 is defined between the housing 120a and the cover 120b. The window 122 is in communication with the accommodating space 121.

The multi-slot rotary table 140 is disposed on the side of the base 120 on which the window 122 is disposed. The multi-slot rotary table 140 includes a turntable 141 and m positioning ports 142 extending through the turntable 141 and m≧2; The driving control unit 110 is configured to control the multi-slot rotary table 140 to rotate along the axial direction A1, and the rotation angle of the multi-slot rotary table 140 is in a range of 0.1 to 360 degrees; and the turntable 140 is adjacent to the center thereof. A fixing base (not shown) is provided for providing a to-be-picked object P to be placed in the fixing base and fixed, and the multi-slot rotary table 140 is controlled to rotate along the axial direction A1 by the driving control unit 110, so that The object P to be picked is rotated in the axial direction A1 and forms a plurality of different image capturing angles.

As described above, each of the positioning ports 142 is disposed at an equidistant or equiangular arrangement along the outer circumference of the turntable 141 and is respectively mounted with containers of liquid molding materials S of different colors or different materials (not shown). The mounting mode and the form of the container are not limited, wherein the turntable 141 is a light shielding sheet and is controlled by the driving control unit 110 to drive a power motor 143 to rotate clockwise or counterclockwise with the axial direction A1 as an axis. Displace the center of the positioning port 142 to overlap with the center of the window 122 in the axial direction A1, and trigger a sensing through a switch 144 and return a signal to the driving control unit 110 to determine each of the positioning ports ( 142a, 142b, 142c, 142d...); further, the switch 144 triggers the sensing and returns a signal to the drive control unit 110 to make the object P to be placed on the turntable 141 The positioning of the shooting angle, for example, the front view angle, the left/right view angle, the rear view angle, and the like, but not limited thereto; wherein the switch 144 can be an optical limit switch.

The molding unit 130 is connected to the base 120 and includes a holding plate 131, a first lifting mechanism 132, a loading platform 133, a second lifting mechanism 134, a light source module 135, and the first lifting mechanism 132. The extension bracket 136 is configured to erect the image capturing unit 150. The operation mode and principle of the image capturing unit 150 will be described in the following paragraphs and described in conjunction with the drawings. The holding plate 131 is disposed corresponding to the position of the window 122 and coupled to the first lifting mechanism 132. The first lifting mechanism 132 is electrically connected. The driving control unit 110 is connected to the displacement of the holding plate 131 along an axial direction A1; in detail, the driving control unit 110 controls the first lifting mechanism 132 to select the holding plate 131 along the axial direction A1. The movement moves toward the positioning port 142 or away from the positioning port 142.

As described above, the first lifting mechanism 132 can include a motor (not shown) and a linear screw (not shown) connected thereto, and the linear screw is driven by the motor to make the holding plate 131 along the axial direction. A1 reciprocating displacement, the motor can be a stepping motor or a servo motor. The second lifting mechanism 132 can include a motor (not shown) and a linear screw (not shown) connected thereto, and the linear screw is driven by the motor to make the loading platform 133 along the axial direction in the space. A1 reciprocating displacement; or an electromagnet device to form a mutual attraction or repulsive manner by excitation/demagnetization, so that the loading table 133 is displaced along the axial direction A1, and the micro-vibration during displacement can be effectively reduced, wherein the axial direction A1 and The Z axes are parallel to each other and are perpendicular to the X axis and the Y axis, respectively.

The loading platform 133 is disposed in the accommodating space 121 corresponding to the position of the window 122; the second lifting mechanism 134 is electrically connected to the driving control unit 110 and configured to displace the loading platform 133 along the axial direction (A1); In detail, the drive control unit 110 controls the second elevating mechanism 134 to selectively move the stage 133 in the axial direction A1 toward the window 122 or away from the window 122. In addition, the contour of the window 122 is consistent with the loading platform 133. The opening area of the window 122 is equal to or larger than the sectional area of the loading platform 133 and the sectional area of the holding plate 131, and the cutting plate 131 is cut off. The area is smaller than the opening area of each of the positioning ports 142.

The light source module 135 is connected to the driving control unit 110 and disposed in the accommodating space 121 corresponding to the position of the window (122). The light source module 135 includes a transparent box 1351 and is disposed in the transparent box 1351. a light-emitting element (1352), the control control unit 110 controls the light-emitting element 1352 to emit a light beam to illuminate the cavity 90; the transparent case 1351 is disposed on the side of the carrier 133 adjacent to the window 122, wherein the The light source module 135 can use an ultraviolet light source; the present invention is not limited to the light source module 135, as long as it can be used to generate a light source module for a plurality of cross-sectional layers of the three-dimensional object.

In addition, the light source module 135 can further use: one of a visible light source, a UV light, a visible light laser source, and an infrared light source, wherein a photocuring reaction of a suitable photocurable material occurs by irradiation of the light source. Compared with the conventional patterned light source using ultraviolet light as a photocuring stereoscopic modeling device, a long-wavelength light source other than ultraviolet light such as a visible light source (for example, a wavelength of 400 nm to 760 nm) or an infrared light source (for example, a wavelength of 760 nm) is used. At 10000 nm), since the transmittance of the long-wavelength light source to the liquid is higher than that of the ultraviolet light, the long-wavelength light source is irradiated through the bottom surface of the tank 90, and the degree of hardening of the liquid molding material on the bottom surface is small. The degree of hardening of the liquid molding material outside its bottom surface, whereby the drawing force of the solidified layer is relatively lowered.

For the configuration and operation of the image capturing unit 150 described in the present application, please refer to FIG. 5, which shows a block diagram of an embodiment of an image capturing unit. In this example, the image capturing unit 150 can include a portable electronic device 151 and an external device 152. The portable electronic device 151 can be a general mobile phone, a smart phone, a personal digital assistant (PDA), a digital camera, a multimedia player, a tablet computer or other handheld device, etc.; wherein the external device 152 can be configured There is a projection module 153, or the projection module 153 can be mounted on the portable electronic device 151, which is not limited herein; the portable electronic device 151 includes a camera module 1510, a display module 1511, and a control The module 1512 is connected to the projection module 153, the camera module 1510, and the display module 1511.

As described above, the camera module 1510 can capture a plurality of component images IM2D, and the control module 1512 transmits data to and from the network communication interface 220 of the host device 200 through the wireless communication chip in the portable electronic device 151. The control module 1512 transmits the constituent images IM2D captured by the camera module 1510 to the image conversion module 230 located in the host device 200 through the wireless communication chip. The image conversion module 230 can convert the constituent images IM2D. The stereoscopic format image IM3D has a full angle, and the image conversion module 230 transmits the stereo format image IM3D to the stereoscopic image device 100 through the network communication interface 220; The group 230 can be an image computing software (for example, a point cloud computing software). After the image converting module 230 converts the constituent images IM2D into the volume image IM3D, the stereo format image IM3D can be stored in the host device 200. . In addition, the network communication interface 220 may include at least one of a wired network interface and a wireless network interface, such as an Ethernet network, and a wireless network such as CDMA, GSM, NADC, and E. -TDMA, third generation (3G) communication systems (such as WCDMA and CDMA2000) and 802.11 a/b/g/n., etc., are not limited herein.

In this embodiment, the image capturing unit 150 can operate a scanning mode or an image projection mode, wherein the image capturing unit 150 can switch the operated mode according to the input signal of the host device 200. When the stereoscopic image device 100 is operated in the scan mode, the user can set the projection module 121 to different angles of the object P to be captured, and the control module 1512 can control the projection module 121 to correspond to the object to be captured. The structured light pattern SLP is projected onto the object P to be captured, and the control module 1512 synchronously controls the camera module 1510 to capture a plurality of constituent images IM2D of the object P to be captured at different angles. Then, the control module 1512 transmits the constituent images IM2D to the image conversion module 230 through the wireless communication chip in the portable device to convert the constituent images IM2D into a stereo format image IM3D having a full angle.

For example, the full angle may be a 360 degree viewing angle, 180 degrees or 45 degrees, etc., depending on actual usage. After the image conversion module 230 is converted into the stereo format image IM3D, the user can display the stereoscopic image IM3D of the host device 200 to display a stereoscopic image of a specific viewing angle of the object P through the display screen (not shown) of the host device 200; In addition, the portable electronic device 151 can also receive the image from the image conversion module 230 and convert it into the stereo format image IM3D and carry the related application (APP) through the portable electronic device 151 to display the stereoscopic image through the display module 1511. image. The control module 1512 can determine the viewing angle according to the input signal of the user in the input module (for example, the touch mode of the mobile phone or the mouse or the keyboard on the host device), because the stereoscopic grid The image IM3D is a stereoscopic appearance corresponding to the object P to be captured. Therefore, by operating the input module, a display image of the object to be captured at a full angle (ie, 360 degrees) can be presented.

When switching to the image projection mode, the control module 1512 controls the projection module 153 to project the screen image IF, wherein the screen image IF can be the same as the display image of the object to be captured at a specific viewing angle. In this embodiment, the control module 1512 can adjust the image content of the stereo format image IM3D according to the signal of the input module to adjust the displayed display image or the screen image IF projected by the projection module 153.

As described above, the control module 1512 provides the constituent images IM2D to the image conversion module 230. The image conversion module 230 can analyze the plurality of edge feature points constituting the image IM2D, and close or coincide the corresponding edge feature points. To form a stereo format image IM3D with a full angle. For example, the image conversion module 230 can analyze each of the curves constituting the surface of the object in the image IM2D, and determine the inflection point of the line of the surface of the object (such as the aforementioned edge feature point). Then, it is determined whether the inflection points correspond to each other according to the slope change of the line near the inflection point, and the corresponding inflection points are close to or coincident.

Please also refer to FIG. 6a and FIG. 6b, which respectively show the appearance structure of the image capturing unit. In this embodiment, the external device 152 can be a frame, a base, or the like for inserting, placing, and fixing the portable electronic device 151. The projection module 153 is disposed on the external device 152. When the portable electronic device 110 is disposed on the base, the projection module 153 and the camera module 1510 are located on the same side, that is, the projection direction of the projection module 153 is substantially the same as the captured image direction of the camera module 1510. In addition, on one surface of the external device 152, the projection module 153 projects the structured light pattern SLP; on one surface of the portable electronic device 151, the camera module 1510 captures the image IM2D, and the projection module 153 is provided. The surface of the external device 152 is substantially parallel to the portable electronic device 151 provided with the camera module 1510.

When the image capturing unit 150 is in the scanning mode, the projection module 153 can project the structured light pattern SLP on the object to be captured 30 with respect to different angles of the object 30 to be captured, due to the projection. The unit 121 and the camera module 1510 are located on the same side of the stereoscopic image device 100. The camera module 1510 can synchronously capture the plurality of constituent images IM2D formed by the structured light pattern SLP on the object 30 to be captured, wherein the image IM2D is formed. This is caused by the fact that the structured light pattern SLP is projected on the surface of the object P to be drawn, which may have different curvatures or deformations. Other ways may include using a slight change in the distance or the stripe pitch. On the object P to be captured, the projection range of the projection module 153 is located within the capture range of the photographing module 1510. In addition, the structured light pattern SLP projected on the object P to be captured by the projection module 153 is a black and white straight stripe pattern, but the structured light pattern SLP may also be a gray scale or a color pattern. In other embodiments, the structured light pattern SLP may be It is a horizontal stripe pattern or a checkered pattern, which can be designed by a person skilled in the art, and the present invention is not limited thereto.

In addition, the portable electronic device 151 can be configured with a projection module 153, that is, the projection module 153 is built in the portable electronic device 151 instead of the external device 152. In addition, on the same surface of the portable electronic device 151, the projection module 153 projects the structured light pattern SLP and the camera module 1510 captures the image IM2D.

Please refer to FIG. 7 and FIG. 2 together to show a block diagram of another embodiment of the image capturing unit. In the present embodiment, the same or similar elements follow the same or similar element symbols in the previous embodiment. The main difference is that the portable electronic device 151 further includes a gravity sensor 1513 for sensing the tilt angle (ie, tilt information) of the portable electronic device 151. In detail, when the photographic module 1510 captures a plurality of constituent images IM2D of the object P to be captured at different angles, the gravity sensor 1513 can sense the tilt information corresponding to each of the constituent images IM2D, and the control module 1512 will The image IM2D and its corresponding tilt information are transmitted to the image conversion module 230, and the image conversion module 230 can determine the horizontally adjacent constituent image IM2D according to the tilt information, thereby speeding up the processing speed of the image conversion module 230. In other words, the image conversion module 21 can analyze the plurality of edge feature points constituting the image IM2D, determine the edge feature points corresponding to the horizontal position according to the tilt information corresponding to each of the constituent images IM2D, and close or coincide the corresponding edge feature points. To form a stereo format image IM3D with a full angle.

Please refer to FIG. 4 and FIG. 8a to FIG. 8f, which are used to illustrate the operation process of the multi-material photo-curing stereoscopic molding device of the instant image scanning of the present invention, which is used to hold the liquid molding material S. The tank body 90 has a bottom plate 91 and a wall structure 92. The bottom plate 91 is transparent or translucent and the light source module 135 is disposed below the bottom plate 91 (Z-axis). The wall structure 92 is disposed on the bottom plate 91. A storage space 900 is formed around the bottom plate 91 to accommodate the liquid molding material S. In this embodiment, the four positioning ports (142a, 142b, 142c, 142d) are used to describe the multi-material photocuring stereoscopic modeling system for instant image scanning. The multi-material three-dimensional object S2 is completed by the drive control unit 110 in sequence, and the operation procedure is as follows: a. providing the object P to be picked and placing it in the center position of the turntable 141 of the multi-slot rotary table 140; Operating the image capturing unit in the scanning mode to cause the projection module 153 to project the structured light pattern SLP to the object to be captured P, and synchronously capturing the constituent image IM2D of the object P to be captured through the camera module 1510, The projection range of the projection module 153 Located in the capturing range of the photographic module 1510; c. controlling the multi-slot rotating table 140 to rotate at a specific angular velocity ω1 and stopping positioning when the object P to be captured is at different shooting angles, continuously repeating the rotation and stopping the positioning process So that the camera module 1510 captures a plurality of constituent images IM2D at different angles of the object P to be captured; d. converts the constituent images IM2D into a stereo format image IM3D having a full angle via the image conversion module 230. Checking whether the stereoscopic format image IM3D is abnormal. If there is an abnormality, the processing is performed by the 3D software or the a~c steps are repeated. If there is no abnormal operation, the host device 200 outputs the stereoscopic printing information of the object P to be captured; Controlling the multi-slot rotary table 140 to rotate at a specific angular velocity ω1 to move one of the positioning slots 142a of the multi-groove rotary table 140 to a position corresponding to the window 122; f. controlling the loading table 133 to move away from the window 122 in the axial direction A1 and moving at a first speed V1 by a distance, and controlling the container (not shown) containing the liquid molding material S to the liquid molding material S is injected into the trough; g. controls the holding plate 131 to move a distance along the axial direction A1 toward the positioning port 142 at a second speed V2 and a gap with the bottom plate; h. control the light source module 135 to emit The light beam is irradiated to the bottom plate 91 of the tank body 90 to cause a photocuring reaction of the liquid molding material S. After the photocuring layer S1 is formed on the holding plate 131, the carrier plate 133 is controlled to face away from the bottom plate 91. Directionally solidifying a plurality of sliced objects of the multi-material three-dimensional object (S2); i. controlling the multi-slot rotary table 140 to rotate at the specific angular velocity ω1 to move the other positioning opening 142b to correspond to the position of the window 122, The procedure of f to h or f to i is repeated to form the multi-material three-dimensional object S2.

As described above, the first speed V1 is in the range of 0.1 to 100 mm/s, and the second speed V2 is in the range of 0.1 to 100 mm/s.

As described above, the specific angular velocity ω1 is in the range of 0.1π to 20πrad/s.

As described above, the procedure of repeating f to h or f to i is determined by adjusting the liquid molding material S of different requirements according to the color or material of the multi-material three-dimensional object. Therefore, a plurality of positioning ports 142 can be disposed as needed to install a plurality of liquid molding materials S of different colors or different materials; for example, please refer to FIG. 9a and FIG. 9b simultaneously, which shows the actual implementation of the creation. In the aspect, the multi-slot rotary disk is provided with three positioning ports, and three liquid molding materials S of different colors and different materials are respectively installed in the positioning ports.

Please refer to FIG. 10a to FIG. 10b, which respectively show the structure diagram of the single-axis output printing and the multi-axis output printing of the present invention. The embodiment of the single-axis output printing is shown in FIG. 2~4. The embodiment shown in the multi-axis output printing, that is, the multi-component unit 130 is disposed and is respectively disposed around the multi-slot rotary table 140, and the main purpose thereof is: each molding sheet The meta-printing information can be loaded separately and printed simultaneously to produce different multi-material three-dimensional objects S2.

In summary, the multi-material light-curing stereoscopic modeling system and the operation method thereof of the embodiments of the present invention are disposed on a multi-groove rotating platform by a projection module integrated in the image capturing unit of the 3D printing device. The rotation of the object to be captured can project the structured light pattern to the object to be captured with respect to the different angles of the object to be captured, and synchronously acquire a plurality of constituent images of the object to be captured at different angles through the photographic module. Then, the image conversion module converts the constituent images into a stereoscopic image with full angle, and then transmits the stereo format image to a 3D printing device (not shown), and prints the image to be captured by using the 3D printing device. The 3D model of the object; in addition, the operation interface, the display module, the camera module, the network interface and the built-in or external projection module of the original portable electronic device can scan the object to be captured and generate The stereoscopic image corresponding to the object to be captured has the advantages of low cost, convenience and versatility.

In addition, by synchronously controlling the rotation of the multi-slot rotary table through the drive control unit to change the color or material of the printed and sliced object, and the configuration pattern of the two sets of lifting structures, the color of the raw material in the molding process can be effectively solved by the conventional technology. Can't change the facts with the design, can't print the full color or true color objects consistent with the design, and improve the conventional technology. It is easy to generate vibration only with a single lifting structure, which can not accurately hit the laser beam in the expected position. The problem of molding quality is affected by the above; in addition, the driving control unit is matched with the limit switch to control the positioning ports on the turntable to accurately position the formed three-dimensional object, and at the same time achieve "positioning" and "support" to ensure the molding process. Smooth implementation.

The above is only an example, and is not intended to limit the present invention. The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and thus is generally known in the art. Equivalent changes and modifications made by those skilled in the art, which are equivalent to or equivalent to those skilled in the art, should be included in the scope of the present invention.

110‧‧‧Drive Control Unit

120‧‧‧Base

120a‧‧‧shell

120b‧‧‧ cover

121‧‧‧ accommodating space

122‧‧‧ window

130‧‧‧Molding unit

131‧‧‧Maintenance board

132‧‧‧First lifting mechanism

133‧‧‧ carrying board

134‧‧‧Second lifting mechanism

135‧‧‧Light source module

136‧‧‧Extension bracket

140‧‧‧Multi-slot rotary table

141‧‧‧ Turntable

142‧‧‧ positioning port

143‧‧‧Power motor

144‧‧‧ switch

150‧‧‧Image capture unit

A1‧‧‧Axial

Claims (12)

A multi-material light-curing stereoscopic modeling system for instant image scanning, comprising: a pedestal having an accommodating space, the pedestal having at least one window on one side and communicating with the accommodating space; a table having a turntable disposed on a side of the base on which the window is provided, the turntable providing a body to be picked placed thereon; at least one molding unit connected to the base and including a corresponding window a holding plate at a position, a first lifting mechanism for displacing the holding plate in an axial direction, a loading platform disposed in the accommodating space, and a displacement of the bearing table along the axial direction a second lifting mechanism, a light source module disposed in the accommodating space, and an extension bracket that is connected to the first lifting mechanism and freely expandable and contractible: an image capturing unit connected to the extending bracket and comprising: a projection a module that projects a structured light pattern (SLP) to the object to be captured at different angles with respect to the object to be captured; a photographic module for capturing a plurality of components of the object to be captured at different angles Shadow (IM2D), the projection range of the projection module is located in the capture range of the camera module; a control module electrically connecting the projection module and the camera module to control the projection module to project the projection module Forming a light pattern, controlling the camera module to capture the plurality of constituent images correspondingly, and providing the plurality of constituent images to convert the plurality of constituent images into a stereo format image via an image conversion module; a driving control unit, The first lifting mechanism, the second lifting mechanism, the multi-slot rotating table and the light source module are respectively connected to the driving control unit for controlling the rotating shaft to rotate clockwise or counterclockwise with the axial direction as The object to be picked is rotated in the axial direction and formed at a plurality of angles. The multi-material photo-curing stereoscopic modeling system of the instant image scanning method of claim 1, wherein the image capturing unit further comprises a gravity sensor for sensing a dip angle information corresponding to each of the plurality of constituent images. . The multi-material photo-curing stereoscopic modeling system of the instant image scanning method of claim 1, wherein the photographic module and the control module are disposed in a portable electronic device, and the projection module is disposed in an external device. The external device provides the portable electronic device to be placed and fixed therein. The multi-material light-curing stereoscopic modeling system of the instant image scanning method of claim 1, wherein the image conversion module is disposed in a host device, and the control module transmits a network communication interface in the host device to the host The device is coupled to transmit the plurality of information constituting the image to the image conversion module. The multi-material photo-curing stereoscopic modeling system of the instant image scanning according to claim 1, wherein the multi-slot rotary table further comprises m positioning ports extending through the turntable and m≧2, each of the positioning ports being along the outer circumference of the turntable A container in which the edge is equidistant or equiangularly arranged and each of which is provided with a liquid molding material of a different color or a different material. The multi-material photocuring stereoscopic modeling system of the instant image scanning of claim 1, wherein the driving control unit is configured to control the first lifting mechanism to selectively move the holding plate along the axial direction toward the positioning opening or away from the positioning Moving in the direction of the positioning port, controlling the second lifting mechanism to selectively move the loading table along the axial direction toward the window or away from the window, and controlling the center of the positioning opening to be displaced to the center of the window in the axial direction Form an overlap. The multi-material photocuring stereoscopic modeling system of the instant image scanning of claim 5, further comprising a trough body for containing the liquid molding material, each of the troughs having: a bottom plate, which is transparent or translucent And the light source module is disposed under the bottom plate; a wall structure disposed around the bottom plate and forming a storage space with the bottom plate to receive the liquid molding material; the multi-material photocuring stereoscopic molding device is controlled by the driving The unit controls in sequence: a. controlling the multi-slot rotary table to rotate at a specific angular velocity and positioning the object P to be captured at various shooting angles, continuously repeating the process of rotating and positioning, so that the camera module captures the The plurality of constituent images of the different angles of the object to be captured; b. controlling the multi-slot rotary table to rotate at a specific angular velocity such that a positioning port moves corresponding to the position of the window; c. controlling the carrier along the axis Moving a distance away from the window at a first speed, and controlling the container containing the liquid molding material to inject the liquid molding material into the tank; d. controlling the holding plate along the Moving at a second speed toward the positioning port and having a gap with the bottom plate; e. controlling the light source module to emit a light beam to illuminate the bottom plate of the tank body to photocuring the liquid molding material Reacting, after forming a photocurable layer on the holding plate, and then curing a plurality of portions of the multi-material three-dimensional object one by one in a direction away from the bottom plate; f. controlling the multi-groove rotating table to rotate at the specific angular velocity In order to move the other positioning port corresponding to the position of the window, the procedure of b to e or b to f is repeated to form the multi-material three-dimensional object conforming to the contour of the object to be captured. The multi-material light-curing stereoscopic modeling system of the instant image scanning according to claim 7, wherein the first speed system is in a range of 0.1 to 100 mm/s, and the second speed system is in a range of 0.1 to 100 mm/s. The specific angular velocity is in the range of 0.1 π to 20 π rad/s. The multi-material photo-curing stereoscopic modeling system of the instant image scanning method of claim 1, wherein the light source module comprises a transparent box body and a light-emitting component disposed in the transparent box body, wherein the transparent box system is disposed on the carrying platform Is adjacent to the side of the window. The multi-material light-curing stereoscopic modeling system of the instant image scanning according to claim 1, wherein the turntable is a light shielding film and is driven to rotate through a power motor of the driving control unit, and is sensed and transmitted back through a switch to The drive control unit determines the position of each of the positioning ports. The multi-material light-curing stereoscopic modeling system for real-time image scanning of the instant image scanning according to claim 1, wherein the rotation angle of the multi-groove rotating table is in a range of 0.1 to 360 degrees. The multi-material photocuring stereoscopic modeling system for real-time image scanning of the instant image scanning according to claim 1, wherein the contour of the window conforms to the loading platform, and the opening area of the window is equal to or larger than the loading platform. The cross-sectional area and the cross-sectional area of the retaining plate, and the cross-sectional area of the retaining plate is smaller than the opening area of each of the positioning openings.