CN108790150A - 3D printing system and 3D printing method - Google Patents
3D printing system and 3D printing method Download PDFInfo
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- CN108790150A CN108790150A CN201710282261.0A CN201710282261A CN108790150A CN 108790150 A CN108790150 A CN 108790150A CN 201710282261 A CN201710282261 A CN 201710282261A CN 108790150 A CN108790150 A CN 108790150A
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- printed material
- conveyor belt
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y40/00—Auxiliary operations or equipment, e.g. for material handling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y50/00—Data acquisition or data processing for additive manufacturing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y50/00—Data acquisition or data processing for additive manufacturing
- B33Y50/02—Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
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Abstract
A kind of 3D printing system, including feeding equipment, print platform and imaging device, feeding equipment includes transparent conveyor belt, the first gravitation tank and the first scraper, printed material can be emitted on transparent conveyor belt by the first gravitation tank, the blade of first scraper is oppositely arranged with transparent conveyor belt, printed material can be applied and is scraped by the first scraper, printed material can be transported to the surface of print platform by transparent conveyor belt, imaging device can generate the pattern light of irradiation printed material, and printed material is made to be cured as printing entity on print platform.The 3D printing system of the present invention can successively coat printed material, can realize multiple material mixing printing, have extremely important meaning to biologic applications.The invention further relates to a kind of 3D printing methods.
Description
Technical field
The present invention relates to 3D printing technique field, more particularly to a kind of 3D printing system and 3D printing method.
Background technology
3D printing technique as perspective, strategic technology, aerospace, biologic medical, weaponry, automobile and
There are important application in the high-end fields such as mold.
Especially in biologic medical field, 3D printing technique is biochip, biochemical device provide flexibly prepare it is new
Method is also biomaterial, artificial organs field provides new research means and platform, realizes complicated 3D carrier bracket systems
Make.However, existing 3D printing technique is still difficult to meet application demand in printing precision and print size.For biologic applications
Field, 3D printing technique is still not yet in effect to solve the problems, such as that printing precision and stamp with the size cannot be taken into account.On the one hand, it is based on two-photon
Or the stereolithography technology of laser direct-writing can realize small to 0.1 micron of labyrinth printing, however be limited to print
Size (being less than hundreds of microns) is not suitable for biochip and makes.On the other hand, the stereolithography technology based on projection
It is limited to printing precision (being more than 30 microns) and is difficult to meet the making requirement of micro-structure in biochip.Commercialization 3D printing at present
Only 50 microns mostly of machine lateral resolution, depth resolution is about 50-100 microns.Meanwhile existing 3D printing technique printing
The biochip surface roughness gone out is larger, makes troubles to biological detection.In view of bio-diversity, homogenous material can not be real
The requirement of existing biological devices design and fabrication.
Invention content
The object of the present invention is to provide a kind of 3D printing systems, can successively coat printed material, can realize a variety of materials
Biologic applications are had extremely important meaning by material mixing printing.
The present invention solves its technical problem using technical solution below to realize.
A kind of 3D printing system, including feeding equipment, print platform and imaging device, feeding equipment include transparent transmission
Printed material can be emitted on transparent conveyor belt by band, the first gravitation tank and the first scraper, the first gravitation tank, the knife of the first scraper
Sword is oppositely arranged with transparent conveyor belt, and printed material can be applied and is scraped by the first scraper, and transparent conveyor belt can transport printed material
It send to the surface of print platform, imaging device can generate the pattern light of irradiation printed material, make printed material on print platform
It is cured as printing entity.
In the preferred embodiment, above-mentioned feeding equipment further includes take-off reel and machine reel, transparent conveyor belt
Respectively on take-off reel and machine reel, print platform is set to the top of transparent conveyor belt at both ends, and positioned at take-off reel with
Between machine reel.
In the preferred embodiment, above-mentioned feeding equipment further includes multiple first tensioning wheels, multiple second tensionings
Wheel and drive roll, multiple first tensioning wheels are arranged close to take-off reel, and multiple second tensioning wheels are arranged close to machine reel, and drive roll is set
It is placed between the second tensioning wheel and machine reel, transparent conveyor belt passes through the first tensioning wheel, the second tensioning wheel and drive roll successively, main
Dynamic roller can drive transparent conveyor belt to be moved towards close to the direction of machine reel.
In the preferred embodiment, above-mentioned feeding equipment further includes defective material cure lamp, and defective material cure lamp is set to
The top of transparent conveyor belt, defective material cure lamp can send out remaining printed material after ultraviolet light solidification printing.
In the preferred embodiment, above-mentioned feeding equipment further includes the second gravitation tank and the second scraper, and second supplies
Printed material can be emitted on transparent conveyor belt by batch can, and blade and the transparent conveyor belt of the second scraper are oppositely arranged, and second scrapes
Printed material can be applied and is scraped by knife, and the printed material of the second gravitation tank discharge and the printed material of the first gravitation tank discharge are not
Together.
In the preferred embodiment, above-mentioned imaging device include light source, beam shaping, spatial light modulator,
Polylith speculum and projection lens, beam shaping are used for the light beam that shaping light source is sent out；Spatial light modulator is used for shaping
Light beam afterwards generates pattern light；Speculum is used for pattern light reflection to projection lens, and projection lens is opposite with print platform to be set
It sets, planar pattern light can be projected on printed material by projection lens.
In the preferred embodiment, above-mentioned imaging device further includes computer and controller, and computer is for carrying
It is divided into a series of pattern file of strips for displacement data and by exposure data, and displacement data and pattern file are sent to
Controller, controller timing upload pattern file to spatial light modulator, so that spatial light modulator is generated pattern light, controller is logical
Displacement data control projection lens is crossed to move along the in-plane of transparent conveyor belt.
In the preferred embodiment, above-mentioned imaging device further includes CCD monitoring systems, and CCD monitoring systems are used for
The printing situation of print platform is monitored, and image is sent to computer, controller controls CCD monitoring systems by displacement data
With projection lens synchronizing moving.
In the preferred embodiment, above-mentioned imaging device further includes photodetector, and photodetector is for adopting
Collect the light of printed material surface reflection, and the topographic data of generation is sent to controller, controller is according to topographic data tune
Save the projection focal length of projection lens.
Another object of the present invention is to provide a kind of 3D printing methods, can successively coat printed material, can realize more
Biologic applications are had extremely important meaning by kind material mixing printing.
A kind of 3D printing method, the 3D printing method include the following steps：
Feeding equipment is provided, feeding equipment includes transparent conveyor belt, the first gravitation tank and the first scraper, utilizes the first feed
Printed material is emitted on transparent conveyor belt by tank, and printed material painting is scraped using the first scraper；
Print platform is provided, printed material is transported to the surface of print platform using transparent conveyor belt；And
Imaging device is provided, pattern light is generated using imaging device, makes pattern light irradiation on printed material, and make printing
Material is cured as printing entity on print platform.
The feeding equipment of the 3D printing system of the present invention includes transparent conveyor belt, the first gravitation tank and the first scraper, and first
Printed material can be emitted on transparent conveyor belt by gravitation tank, and blade and the transparent conveyor belt of the first scraper are oppositely arranged, and first
Printed material can be applied and is scraped by scraper, and printed material can be transported to the surface of print platform, imaging device by transparent conveyor belt
The pattern light that irradiation printed material can be generated makes printed material be cured as printing entity on print platform.The 3D of the present invention is beaten
Print system can realize multiple material mixing printing, have extremely important meaning to biologic applications by successively coating printed material
Justice.
Above description is only the general introduction of technical solution of the present invention, in order to better understand the technical means of the present invention,
And can be implemented in accordance with the contents of the specification, and in order to allow the above and other objects, features and advantages of the present invention can
It is clearer and more comprehensible, it is special below to lift preferred embodiment, and coordinate attached drawing, it is described in detail.
Description of the drawings
Fig. 1 is the structural schematic diagram of the 3D printing system of the present invention.
Fig. 2 is the flow diagram of the 3D printing method of the present invention.
Specific implementation mode
It is of the invention to reach the technological means and effect that predetermined goal of the invention is taken further to illustrate, below in conjunction with
Attached drawing and preferred embodiment, to the specific implementation mode of the 3D printing system and 3D printing method that propose according to the present invention, structure,
Feature and its effect, detailed description are as follows:
For the present invention aforementioned and other technology contents, feature and effect, in following cooperation with reference to the preferable reality of schema
Applying in the detailed description of example can clearly appear from.By the explanation of specific implementation mode, when predetermined mesh can be reached to the present invention
The technological means taken and effect be able to more deeply and it is specific understand, however institute's accompanying drawings are only to provide with reference to and say
It is bright to be used, it is not intended to limit the present invention.
Fig. 1 is the structural schematic diagram of the 3D printing system of the present invention.As shown in Figure 1, in the present embodiment, 3D printing system
10 include feeding equipment 12, print platform 14 and imaging device 16.
Specifically, feeding equipment 12 includes transparent conveyor belt 121, take-off reel 122, machine reel 123, multiple first tensioning wheels
124a, multiple second tensioning wheel 124b, drive roll 125, defective material cure lamp 126, the first gravitation tank 127a, the first scraper 127b,
Second gravitation tank 128a, the second scraper 128b and transparent support board 129.
Transparent conveyor belt 121 is made of the material of light-permeable, i.e., light may pass through transparent conveyor belt 121.In the present embodiment
In, transparent conveyor belt 121 is along horizontally arranged, and the both ends of transparent conveyor belt 121 are respectively wound on take-off reel 122 and take-up
On disk 123.
Take-off reel 122 for exporting transparent conveyor belt 121 outward.In the present embodiment, take-off reel 122 is connect with motor,
Take-off reel 122 is driven by motor and at the uniform velocity exports transparent conveyor belt 121 outward.
Machine reel 123 is for furling transparent conveyor belt 121.In the present embodiment, machine reel 123 is connect with motor, take-up
Disk 123 is driven by motor and at the uniform velocity furls transparent conveyor belt 121.
Multiple first tensioning wheel 124a are arranged close to take-off reel 122, and transparent conveyor belt 121 is wound on the first tensioning wheel successively
On 124a.In the present embodiment, for the tool of feeding equipment 12 there are three the first tensioning wheel 124a, the first tensioning wheel of two of which 124a is solid
Fixed setting, another first tensioning wheel 124a can be tensioned transparent conveyor belt along perpendicular to the direction of transparent conveyor belt 121
121, ensure that transparent conveyor belt 121 is in horizontality always.It is noted that the quantity of the first tensioning wheel 124a not limits
Due to three, can freely increase and decrease according to actual needs.
Multiple second tensioning wheel 124b are arranged close to machine reel 123, and transparent conveyor belt 121 is wound on the second tensioning wheel successively
On 124b.In the present embodiment, for the tool of feeding equipment 12 there are three the second tensioning wheel 124b, the second tensioning wheel of two of which 124b is solid
Fixed setting, another second tensioning wheel 124b can be tensioned transparent conveyor belt along perpendicular to the direction of transparent conveyor belt 121
121, ensure that transparent conveyor belt 121 is in horizontality always.It is noted that the quantity of the second tensioning wheel 124b not limits
Due to three, can freely increase and decrease according to actual needs.
Drive roll 125 is set between the second tensioning wheel 124b and machine reel 123, and drive roll 125 can drive transparent transmission
It is moved towards close to the direction of machine reel 123 with 121.In the present embodiment, drive roll 125 includes two drivings symmetrical above and below
Two surfaces of roller, transparent conveyor belt 121 are contacted with two driven rollers respectively.
Defective material cure lamp 126 is set to the top of transparent conveyor belt 121, and defective material cure lamp 126 can send out ultraviolet light solidification
Remaining printed material after printing.
First gravitation tank 127a is set to the top of transparent conveyor belt 121；First gravitation tank 127a is for storing printing material
Material.The bottom of first gravitation tank 127a is equipped with discharge gate, discharge gate face transparent conveyor belt 121；On first gravitation tank 127a also
Equipped with piston, printed material is set to the lower section of piston.In the present embodiment, the first gravitation tank 127a can be beaten by piston press
Material is printed, so that printed material is passed through discharge gate and is emitted on transparent conveyor belt 121.It is noted that on transparent conveyor belt 121
Printed material need apply spread to smooth film-form, the area in order to ensure film is sufficiently large, makes when discharging printed material
First gravitation tank 127a is moved along the width direction of transparent conveyor belt 121, make printed material it is in a strip shape be emitted into transparent biography
It send on band 121.
First scraper 127b is set to the side of the first gravitation tank 127a, and is located at the top of transparent conveyor belt 121, and first
The blade of scraper 127b is oppositely arranged with transparent conveyor belt 121, and the edge length of the first scraper 127b be oriented parallel to it is transparent
The width direction of conveyer belt 121.First scraper 127b can by printed material apply be scraped, and the blade of the first scraper 127b with thoroughly
Spacing between bright conveyer belt 121 is equal to the film thickness of printed material.In the present embodiment, the first scraper 127b can be towards close to thoroughly
The direction of bright conveyer belt 121 is moved, until be moved to the distance of setting, when transparent conveyor belt 121 carries printed material by the
When one scraper 127b, printed material, which is applied, to be scraped.It is noted that printed material is applied the process that is scraped and non-limiting
In aforesaid way, such as keep transparent conveyor belt 121 motionless, drives the first scraper 127b along the length side of transparent conveyor belt 121
Printed material is scraped to moving back and forth to apply.
Second gravitation tank 128a is set to the top of transparent conveyor belt 121, and positioned at the side of the first gravitation tank 127a；The
Two gravitation tank 128a are for storing printed material.The bottom of second gravitation tank 128a is equipped with discharge gate, the transparent biography of discharge gate face
Send band 121；Piston is additionally provided on second gravitation tank 128a, printed material is set to the lower section of piston.In the present embodiment, second
Gravitation tank 128a can be made printed material pass through discharge gate and be emitted on transparent conveyor belt 121 by piston press printed material, and
The printed material of second gravitation tank 128a discharges is different from the printed material of the first gravitation tank 127a discharges.It is noted that
Printed material on transparent conveyor belt 121, which needs to apply, spreads to smooth film-form, and the area in order to ensure film is sufficiently large, works as row
So that the second gravitation tank 128a is moved along the width direction of transparent conveyor belt 121 when putting printed material, keeps printed material in a strip shape
Be emitted on transparent conveyor belt 121.
Second scraper 128b is set to the side of the second gravitation tank 128a, and is located at the top of transparent conveyor belt 121, and second
The blade of scraper 128b is oppositely arranged with transparent conveyor belt 121, and the edge length of the second scraper 128b be oriented parallel to it is transparent
The width direction of conveyer belt 121.Second scraper 128b can by printed material apply be scraped, and the blade of the second scraper 128b with thoroughly
Spacing between bright conveyer belt 121 is equal to the film thickness of printed material.In the present embodiment, the second scraper 128b can be towards close to thoroughly
The direction of bright conveyer belt 121 is moved, until be moved to the distance of setting, when transparent conveyor belt 121 carries printed material by the
When two scraper 128b, printed material, which is applied, to be scraped.It is noted that printed material is applied the process that is scraped and non-limiting
In aforesaid way, such as keep transparent conveyor belt 121 motionless, drives the second scraper 128b along the length side of transparent conveyor belt 121
Printed material is scraped to moving back and forth to apply.The tool of feeding equipment 12 of the present invention there are two gravitation tank and scraper, gravitation tank and scraper
Quantity can freely increase and decrease according to actual needs also greater than or equal to 3.
Transparent support board 129 is made of the material of light-permeable, i.e., light may pass through transparent support board 129.In the present embodiment
In, transparent support board 129 is set to the lower section of transparent conveyor belt 121, and when carrying out 3D printing, transparent conveyor belt 121 will print
Material is transported to transparent support board 129.
Print platform 14 is set to the top of transparent conveyor belt 121, and between take-off reel 122 and machine reel 123, beats
The print surface of print platform 14 is oppositely arranged with transparent support board 129.Print platform 14 can be towards closer or far from transparent transmission
It is moved with 121 direction, when carrying out 3D printing, print platform 14 is moved towards close to the direction of transparent conveyor belt 121, until
The print surface of print platform 14 is contacted with printed material.
The lower section of feeding equipment 12 is arranged in imaging device 16, and imaging device 16 can generate the pattern light of irradiation printed material,
Printed material is set to be cured as printing entity on print platform 14.In the present embodiment, imaging device 16 includes light source 161a, light
Beam reshaper 162, spatial light modulator 163, polylith speculum 164 and projection lens 165, computer 166, controller 167,
CCD monitoring systems 168, photodetector 169 and the burnt light source 161b of survey.
Light source 161a is for providing the printing light needed when printing.In the present embodiment, the light source 161a of imaging device 16
For example, LED light etc., but be not limited thereto.
Beam shaping 162 is used for the light that shaping light source 161a is sent out.In the present embodiment, beam shaping 162 can
Light is shaped as flat top beam.
Spatial light modulator 163 is used to the light after shaping generating pattern light.In the present embodiment, spatial light modulator
163 can show print pattern, and pattern light is generated when the light after shaping being made to pass through spatial light modulator 163.
Speculum 164 is used to the light after shaping reflexing to spatial light modulator 163 and extremely throws pattern light reflection
Shadow camera lens 165.
Projection lens 165 is oppositely arranged with print platform 14, and projection lens 165 is set under transparent support board 129
Planar pattern light can be projected on printed material by side, projection lens 165.
Computer 166 is used to provide displacement data and exposure data is divided into a series of pattern file of strips, and will
Displacement data and pattern file are sent to controller 167.In the present embodiment, exposure data can be divided into one by computer 166
Serial width is equal to or less than the strip pattern file (BMP files) of 163 width pixel of spatial light modulator.
Controller 167 is used to control all parts coordinated operation in imaging device 16, such as importing, the movement of data are same
Walk control, focus control etc..Specifically, controller 167 uploads pattern file to spatial light according to the pattern file sequential of reception
Modulator 163, at this time spatial light modulator 163 can show print pattern successively, make the light after shaping by space light modulation
Corresponding pattern light is generated when device 163.Controller 167 controls projection lens 165 along transparent biography also according to the displacement data of reception
The length direction of band 121 is sent to move.In the present embodiment, imaging device 16 of the invention uses timing synchronization technology, empty every time
Between optical modulator 163 send out after pattern light printed, pattern file translates certain pixel in spatial light modulator 163, and
It is corresponding to send out another secondary pattern light, while controller 167 controls projection lens 165 according to the displacement data of reception and moves a spacing
From.
CCD monitoring systems 168 are used to monitor the printing situation of print platform 14, and image is sent to computer 166, profit
Print screen, real time monitoring printing situation are shown with computer 166.In the present embodiment, position of the controller 167 also according to reception
Data control CCD monitoring systems 168 and 165 synchronizing moving of projection lens are moved, ensures that CCD monitoring systems 168 can be monitored accurately and beats
Print image.
Photodetector 169 is used to acquire the light of printed material surface reflection, and the pattern number that printed material is generated
According to controller 167 is sent to, controller 167 adjusts the projection focal length of projection lens 165 according to topographic data.
Burnt light source 161b is surveyed for providing light source before 3D printing, and then adjusts the focal length of projection lens 165.Survey burnt light source
The light that 161b is sent out reflexes to projection lens 165 and photodetector 169 by multiple speculums 164, and projection lens 165 exists
The surface projection of transparent conveyor belt 121, while photodetector 169 acquires the light of 121 surface reflection of transparent conveyor belt, and will
The topographic data of generation is sent to controller 167, and controller 167 adjusts the projection focal length of projection lens 165 according to topographic data.
The 3D printing system 10 of the present invention sends out pattern light using spatial light modulator 163, and spatial light modulator 163 is
The brightness of output light is controlled by the deflection of liquid crystal molecule, the brightness of different zones of the projected light in approximately the same plane is made to add
With control, 3D printing part demand of different shapes in the same section disclosure satisfy that.The control accuracy of spatial light modulator 163
Pixel-level can be reached, printing precision is high, can realize that two-dimensional structure precision 8um, thickness and precision 6um are well positioned to meet life
Sundries part is the design of biological devices to the particular requirement of compact dimensions (such as micro-fluidic biological device size is 1~4 inch)
Research with biomedicine field provides the technology platform with innovation meaning.Moreover, spatial light modulator 163 is according to reception
Pattern file sequential generates corresponding pattern light, and it is area source 161a that projection lens 165, which is projected in the light on printed material, simultaneously
Projection lens 165 is moved along the length direction of transparent conveyor belt 121, realizes the projection scanning exposure of large format, has higher
Print speed.In addition, the 3D printing system 10 of the present invention by successively coating printed material, can realize that multiple material mixing is beaten
Print has extremely important meaning to biologic applications, such as by taking the 3D printing for simulating human ear as an example, needs class cartilage material, class
The mixing printing of thews material could be realized, provide class cartilage material using the first gravitation tank 127a, utilize the second gravitation tank
128a provides class thews material, in 3D printing, controls the first gravitation tank 127a and the second gravitation tank 128a sequential feed, realizes
Mixing printing.
Fig. 2 is the flow diagram of the 3D printing method of the present invention.Referring to Fig.1 and 2, the 3D printing method of the present invention
3D printing is carried out using 3D printing system 10, the step of 3D printing method includes：
Feeding equipment 12 is provided, which includes transparent conveyor belt 121, the first gravitation tank 127a, the first scraper
Printed material is emitted into transparent transmission by 127b, the second gravitation tank 128a and the second scraper 128b using the first gravitation tank 127a
On band 121, printed material is scraped using the first scraper 127b or sequential utilizes the first gravitation tank 127a by printed material
It is emitted on transparent conveyor belt 121, printed material is scraped using the first scraper 127b, sequential utilizes the second gravitation tank 128a
Printed material is emitted on transparent conveyor belt 121, printed material painting is scraped using the second scraper 128b, wherein first supplies
The printed material of batch can 127a discharges is different from the printed material of the second gravitation tank 128a discharges；
Print platform 14 is provided, printed material is transported to the surface of print platform 14 using transparent conveyor belt 121；And
Imaging device 16 is provided, pattern light is generated using imaging device 16, makes pattern light irradiation on printed material, and make
Printed material is cured as printing entity on print platform 14.Specifically, imaging device 16 includes light source 161a, beam shaping
162, spatial light modulator 163, polylith speculum 164 and projection lens 165, computer 166, controller 167, CCD monitoring system
System 168, photodetector 169 and the burnt light source 161b of survey.
Shaping is carried out to the light that light source 161a is sent out using beam shaping 162；
Displacement data is provided using computer 166 and exposure data is divided into a series of pattern file of strips, and will
Displacement data and pattern file are sent to controller 167；
Pattern file is uploaded to spatial light modulator 163 using controller 167, makes the display printing of spatial light modulator 163
Pattern, and make the light after shaping by generating corresponding pattern light when spatial light modulator 163；Controller 167 is according to position simultaneously
It moves data control projection lens 165 to move along the length direction of transparent conveyor belt 121, realizes that significantly projection scanning exposes；
The light of printed material surface reflection, and the pattern number that printed material is generated are acquired using photodetector 169
According to controller 167 is sent to, controller 167 adjusts the projection focal length of projection lens 165 according to topographic data；
The printing situation of print platform 14 is monitored using CCD monitoring systems 168, and image is sent to computer 166, profit
Print screen, real time monitoring printing situation are shown with computer 166.
The feeding equipment 12 of the 3D printing system 10 of the present invention includes transparent conveyor belt 121, the first gravitation tank 127a and the
Printed material can be emitted on transparent conveyor belt 121 by one scraper 127b, the first gravitation tank 127a, the blade of the first scraper 127b
It is oppositely arranged with transparent conveyor belt 121, printed material can be applied and is scraped by the first scraper 127b, and transparent conveyor belt 121 can will beat
Print material is transported to the surface of print platform 14, and imaging device 16 can generate the pattern light of irradiation printed material, make printed material
Printing entity is cured as on print platform 14.The 3D printing system 10 of the present invention can be realized by successively coating printed material
Biologic applications are had extremely important meaning by multiple material mixing printing.
The preferred embodiment of the present invention is described in detail above in association with attached drawing, but the present invention is not limited to above-mentioned implementations
Detail in mode can carry out technical scheme of the present invention a variety of simple within the scope of the technical concept of the present invention
Modification, these simple variants all belong to the scope of protection of the present invention.It is as described in the above specific embodiments each specific
Technical characteristic can be combined by any suitable means in the case of no contradiction.In order to avoid unnecessary heavy
Multiple, the present invention no longer separately illustrates various combinations of possible ways.
Claims (10)
1. a kind of 3D printing system, which is characterized in that including feeding equipment (12), print platform (14) and imaging device (16),
The feeding equipment (12) includes transparent conveyor belt (121), the first gravitation tank (127a) and the first scraper (127b), first feed
Printed material can be emitted on the transparent conveyor belt (121) by tank (127a), and the blade of first scraper (127b) is transparent with this
Conveyer belt (121) is oppositely arranged, which can apply printed material and be scraped, which can
Printed material is transported to the surface of the print platform (14), which can generate the pattern of irradiation printed material
Light makes printed material be cured as printing entity on the print platform (14).
2. 3D printing system as described in claim 1, which is characterized in that the feeding equipment (12) further includes take-off reel (122)
With machine reel (123), the both ends of the transparent conveyor belt (121) are respectively wound on the take-off reel (122) and the machine reel (123)
On, which is set to the top of the transparent conveyor belt (121), and positioned at the take-off reel (122) and the machine reel
(123) between.
3. 3D printing system as described in claim 1, which is characterized in that the feeding equipment (12) further includes multiple first tensionings
(124a), multiple second tensioning wheels (124b) and drive roll (125) are taken turns, multiple first tensioning wheels (124a) are close to the take-off reel
(122) be arranged, multiple second tensioning wheels (124b) close to the machine reel (123) be arranged, the drive roll (125) be set to this second
Between tensioning wheel (124b) and the machine reel (123), the transparent conveyor belt (121) successively pass through first tensioning wheel (124a),
Second tensioning wheel (124b) and drive roll (125), the drive roll (125) can drive the transparent conveyor belt (121) to be somebody's turn to do towards close
It moves in the direction of machine reel (123).
4. 3D printing system as described in claim 1, which is characterized in that the feeding equipment (12) further includes defective material cure lamp
(126), which is set to the top of the transparent conveyor belt (121), which can send out
Remaining printed material after ultraviolet light solidification printing.
5. 3D printing system as described in claim 1, which is characterized in that the feeding equipment (12) further includes the second gravitation tank
Printed material can be emitted into the transparent conveyor belt (121) by (128a) and the second scraper (128b), second gravitation tank (128a)
On, the blade of second scraper (128b) is oppositely arranged with the transparent conveyor belt (121), which can will print
Material painting is scraped, the printing material of the printed material and first gravitation tank (127a) discharge of second gravitation tank (128a) discharge
Material is different.
6. 3D printing system as described in claim 1, which is characterized in that the imaging device (16) includes light source (161a), light
Beam reshaper (162), spatial light modulator (163), polylith speculum (164) and projection lens (165), the beam shaping
(162) it is used for the light beam that the shaping light source (161a) is sent out；The spatial light modulator (163) is used to generate the light beam after shaping
Pattern light；The speculum (164) is used for pattern light reflection to the projection lens (165), the projection lens (165) and the printing
Platform (14) is oppositely arranged, which can be projected in planar pattern light on printed material.
7. 3D printing system as claimed in claim 6, which is characterized in that the imaging device (16) further includes computer (166)
With controller (167), the computer (166) is for providing displacement data and exposure data being divided into a series of pattern of strips
File, and displacement data and pattern file are sent to the controller (167), which uploads pattern file
To the spatial light modulator (163), the spatial light modulator (163) is made to generate pattern light, which passes through displacement number
It is moved along the in-plane of the transparent conveyor belt (121) according to the projection lens (165) is controlled.
8. 3D printing system as claimed in claim 7, which is characterized in that the imaging device (16) further includes CCD monitoring systems
(168), which is used to monitor the printing situation of the print platform (14), and the image is sent to the meter
Calculation machine (166), which controls the CCD monitoring systems (168) by displacement data and the projection lens (165) is same
Moved further.
9. 3D printing system as claimed in claim 7, which is characterized in that the imaging device (16) further includes photodetector
(169), which is used to acquire the light of printed material surface reflection, and the topographic data of generation is sent
To the controller (167), which adjusts the projection focal length of the projection lens (165) according to topographic data.
10. a kind of 3D printing method, which is characterized in that the 3D printing method includes the following steps：
Feeding equipment (12) is provided, which includes transparent conveyor belt (121), the first gravitation tank (127a) and first
Printed material is emitted on the transparent conveyor belt (121) by scraper (127b) using first gravitation tank (127a), using this
Printed material painting is scraped one scraper (127b)；
Print platform (14) is provided, printed material is transported to the table of the print platform (14) using the transparent conveyor belt (121)
Face；And
Imaging device (16) is provided, pattern light is generated using the imaging device (16), makes pattern light irradiation on printed material, and
Printed material is set to be cured as printing entity on the print platform (14).
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| CN111844735A (en) * | 2019-04-25 | 2020-10-30 | 苏州苏大维格科技集团股份有限公司 | Laser direct writing and three-dimensional printing composite system and using method thereof |
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| CN110935875B (en) * | 2019-11-27 | 2022-01-04 | 汕头大学 | Longitudinal belt type flexible powder spreading scraper |
| RU209858U1 (en) * | 2021-10-22 | 2022-03-23 | Общество с ограниченной ответственностью "СКАНИ" | 3D PRINTING TABLE DEVICE WITH AUTOMATIC PART REMOVAL CONVEYOR SYSTEM |
| WO2023068965A1 (en) * | 2021-10-22 | 2023-04-27 | Общество с ограниченной ответственностью "СКАНИ" | 3d printing table arrangement with an automatic conveyor system for removing articles |
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| WO2023068965A1 (en) * | 2021-10-22 | 2023-04-27 | Общество с ограниченной ответственностью "СКАНИ" | 3d printing table arrangement with an automatic conveyor system for removing articles |
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