CN104325643B - A kind of method and its device for making 3D products - Google Patents
A kind of method and its device for making 3D products Download PDFInfo
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Abstract
The present invention relates to three-dimensional objects preparation method and its equipment technical field, refers in particular to a kind of method and its device for making 3D products.The device of making 3D products includes：One container, the platform of an adjustable horizontal plane is provided with the container；One spot light, the spot light are suspended in above platform by a mechanical arm that can be moved up in X/Y/Z side, and produce the ultraviolet light of UV solidifications；One injection device, the injection device are arranged on container side, its delivery outlet and reservoir, inject the liquid that proportion is more than UV resins into container by injection device.The present invention by water or other body fluid liftings UV resins, is then solidified using UV spot lights to the UV resins of the superiors using the lighter principle of proportion of UV resins, then constantly adds liquid, continuous lifting UV resins, and is successively solidified.The present invention is to combine the advantages of stereolithography apparatus method (SLA) and hot melt material spraying printing type, proposes a kind of preparation method and device of new 3D products.
Description
Technical field：
The present invention relates to the preparation method of three-dimensional objects and its equipment technical field, refers in particular to a kind of method for making 3D products
And its device.
Background technology：
3D printer obtains development at full speed for several years at this, and existing 3D printer is before work firstly the need of utilizing computer
It is modeled, " section " for being then layered the threedimensional model built up is handled, and then successively " prints " every layer from bottom to top
Section, so as to ultimately form and institute's established model identical 3D products.According to this principle, current 3D printing technique mainly includes
It is following two, SLA stereolithography apparatus mode and hot melt material spraying printing type.Below will be to both 3D printing techniques
It is introduced.
The principle that stereolithography apparatus mode makes 3D products is first, to go out three-dimensional entity model by CAD design,
Model is subjected to slicing treatment using discrete program, designs scanning pattern, caused data will accurately control laser scanner and
The motion of lifting platform；Secondly, the scanner that laser beam is controlled by numerical control device, liquid is irradiated to by the scanning pattern of design
Photosensitive resin surface, after making one layer of resin solidification in the specific region of surface, after one layer of completion of processing, just generate the one of part
Individual section；Then, lifting platform declines certain distance, and another layer of liquid resin is covered on cured layer, then carries out second layer scanning, the
Two cured layers are bonded on previous cured layer securely, are so formed by stacking 3 D workpiece prototype from level to level, finally, by prototype from
After being taken out in resin, finally solidified, then the product required through polishing, plating, spray painting or coloring treatment.SLA skills
Art is mainly for the manufacture of multiple kinds of molds, model etc.；It can also be replaced in the feed by adding other compositions with SLA prototype models
Wax-pattern in precision-investment casting.SLA forming speed is very fast, and precision is higher, but due to producing receipts in resin curing process
Contracting, inevitably results from stress or causes deformation.Therefore it is it that the high light-sensitive material of small, quick solidifying, intensity is shunk in exploitation
Development trend.
The principle of another hot melt material spraying printing weaving is similar with traditional ink-jet printer principle, different
It is that " ink " used in this 3D printer is a kind of hot melt material, such as hot melt wax, PUR.Will by printing mechanism
The hot melt material of melting is sprayed on print platform, carries out " printing " successively, and after hot melt material is sprayed-on out, it will be fast
The solidification of speed.By constantly successively " printing ", required three-dimensional body is ultimately formed.This three-dimensional printing technology comes relatively
Say that manufacture craft is simple, and with the development of three-dimensional machinery arm, technology is ripe, but it makes precision and is limited by material
Etc. the limitation of factor, precision is difficult to reach industrial rank, and it can only make the product of small volume.
The present inventor is directed to the technological development of hot melt material spraying 3D printer always, and combines above two 3D printing
The advantages of technology, propose following technical scheme.
The content of the invention：
First technical problem to be solved by this invention is that overcome the deficiencies in the prior art, there is provided one kind makes 3D
The method of product.This method is to combine the advantages of stereolithography apparatus mode and hot melt material spraying printing type, is proposed
A kind of preparation method of new 3D products, this method not only has higher precision, and cost of manufacture is relatively low.
In order to solve the above-mentioned technical problem, present invention employs following technical proposals：This method is to produce the 3D being produced
Product carry out being layered section processing, and the section of every layer of layer-by-layer preparation, as the continuous superposition for cutting main forms the 3D to be made
Product, it comprises the following steps, the first step, injects appropriate UV resins in a vessel, and setting one can in this embodiment
Adjust the print platform of horizontal plane；Second step, proportion is injected into container by being arranged on the injection device beside container and is more than
The liquid of UV resins, UV resins are swum in above liquid, and the horizontal plane of UV resins is raised by increasing liquid injection rate；
3rd step, primary solidification work is carried out to the designated area of the UV resins of the superiors by being arranged on the UV spot lights above container
Industry, wherein described spot light is installed on a 3D mechanical arm that can be moved up in X/Y/Z side；Carry out for the first time preliminary
During curing operation, the UV resins of the superiors did not had print platform, i.e. the designated area of first time primary solidification is fixed on printing
On platform, this is the orlop section for forming the 3D products by the designated area UV resins of primary solidification for the first time；4th step,
Inject the liquid of doses into container again by injection device, volume is raised in the remaining uncured UV resin horizontals face of order again
Fixed height, and second of primary solidification operation is carried out to the UV resins designated area of raised portion using spot light, to be formed down
Number second layer section, and the layer section second from the bottom stacks one entirety of fixed formation with orlop section, repeats the step, directly
To the primary solidification operation for completing all sections, successively stack and form just base；5th step, again by injection device into container
The liquid of doses is injected, until remaining UV resins are overflowed by container, UV light then is carried out to the first base in liquid
Curing operation, make first base be fully cured, form required 3D products.
Furthermore, in above-mentioned technical proposal, in the 5th described step, UV resins is overflowed by container and directly pass through setting
Reclaimed in the collection vessel of container side, to reduce the waste of material.
Second technical problem to be solved by this invention, which is that, provides a kind of device for making 3D products.Present apparatus knot
Structure is simple, and can make the 3D products that precision is higher, volume is larger.
To solve above-mentioned second technical problem, present invention employs following technical scheme：The device of making 3D products
Including：One container, the platform of an adjustable horizontal plane is provided with the container；One spot light, the spot light can by one
The mechanical arm moved up in X/Y/Z side is suspended in above platform, and produces the ultraviolet light of UV solidifications；One injection device, the note
Enter device and be arranged on container side, its delivery outlet and reservoir, proportion is injected into container by injection device and is more than UV trees
The liquid of fat.
Furthermore, in above-mentioned technical proposal, described injection device have one can by pump that outside liquid is pumped into,
The water inlet pipe connected with container bottom and the outlet pipe connected with container bottom.
Furthermore, in above-mentioned technical proposal, it is distributed hole on the platform in described container.
Furthermore, in above-mentioned technical proposal, the container upper end is right in the outside of container formed with a delivery port
The position of delivery port is answered to be provided with a collection vessel.
Furthermore, in above-mentioned technical proposal, described mechanical arm uses triangle mechanical arm, and it includes：In positive triangle
Three guide rods being distributed and be vertically arranged, in be flexibly connected on every guide rod a slide, each slide with a motion bar
Upper end is flexibly connected, and the lower end of three motion bars is respectively and movably connected in a sliding seat, and three slides pass through traction respectively
Line interlocks with corresponding motor, drives the slide interlocked therewith to be slided up and down along guide rod by motor, to drive motion bar to run,
So as to drive sliding seat to enclose the operation done in the region set on X/Y/Z directions in three guide rods.
Furthermore, in above-mentioned technical proposal, the device also includes a base, and three guide rods of the mechanical arm are fixed
On the base, container is placed in three guide rods on base and enclosed in the region set, and described motor is arranged in base；And the bottom of at
One and water inlet pipe, outlet pipe connect in injection device liquid container are additionally provided with seat.
Furthermore, in above-mentioned technical proposal, described container uses transparent material, on three described guide rods points
UV light sources are not provided with, and the direction of illumination of the UV light sources points to the container positioned at center.
Furthermore, in above-mentioned technical proposal, described spot light is a laser head that can produce ultraviolet light, and it is solid
Determine in sliding seat.
This device that the present invention uses, its is simple in construction, using the lighter principle of the proportion of UV resins, by water or its
His body fluid lifting UV resins, are then solidified using UV spot lights to the UV resins of the superiors, then constantly add liquid,
Continuous lifting UV resins, and successively solidified.The present invention is to beat stereolithography apparatus mode and hot melt material spraying
The advantages of India side formula, combines, and proposes a kind of preparation method and device of new 3D products, and the present invention can not only make precision
Higher three-dimensional objects, and relative to conventional stereo Stereolithography mode technology, its cost of manufacture is lower, available for industry
Production.For present patent application compared with existing stereolithography apparatus mode technology, it has advantages below：
1st, the equipment machine of current stereolithography apparatus mode technology need to substantial amounts of photosensitive resin come Fu lid printouts,
To complete printing；And art solutions of the present invention only need to be with a small amount of UV solidified glues (or one more than printout volume itself
Point), meanwhile, art solutions of the present invention are to be used as filler by salt solution, and UV is solidified into friendship using being filled with for salt solution
The surface lifting of tax.
2nd, current stereolithography apparatus mode technology needs to carry out the solidification process post-processed：Printout must be moved away from and beaten
Print machine, it is put into solidification case and makees final curing；Printout need not be moved away from printer and can be directly saturating by technical scheme
Bright container Inner is solidified, by increasing the circular UV curing light sources (High of 360 degree of large area outside transparent vessel
Intensity UV Light Source) finally solidified.
Brief description of the drawings：
Fig. 1 is the schematic diagram that the present invention is embodiment one；
Fig. 2 is that the present invention is the internal structure schematic diagram of embodiment one；
Fig. 3 is the structural representation that the present invention is container part in embodiment one；
Fig. 4 is the schematic top plan view that the present invention is platform in embodiment one；
Fig. 5 is the workflow schematic diagram of the embodiment of the present invention one；
Fig. 6 is the schematic diagram of 3D products made by the embodiment of the present invention one；
Fig. 7 is the internal structure schematic diagram of the embodiment of the present invention two；
Fig. 8 is the structural representation of the center base of the embodiment of the present invention three and container part.
Embodiment：
With reference to specific embodiments and the drawings, the present invention is further described.
As shown in Fig. 1-4, this is the specific embodiment one of the present invention, and the embodiment includes：Base 1, container 2, mechanical arm
3rd, spot light 4 and injection device 5.
Described base 1 is the pedestal of this product, and it holds the support required for providing this product and built-in power source
Device 2, mechanical arm 3 and injection device 5 are installed on base 1.The present apparatus, can be on base 1 when being sold as finished product
One shell 11 is set, set above-mentioned component cover, and operated by the control panel on shell 11.
Described container 2 can use the circular dishware that transparent glass material makes, and its bottom is provided with a conduct and beaten
Print the platform 21 in region.The platform 21 has three strong points 212, and each strong point 212 can be achieved to adjust up and down, so as to
To adjust the levelness of platform 21, to ensure at work, platform 21 is in horizontality.As shown in Figure 4, platform 21 is using gold
Belong to material to make, EDS maps have the hole 211 of many thereon, and the effect of these holes 211 is the 3D product formations with being cured
Firm inlay card connection, to prevent formed 3D products float under liquid buoyancy effect, follow-up system can not be completed
Make.
The side of container 2 is provided with an injection device 5, and the bottom of the container 2 is provided with one and connected with injection device 5
Entrance, by injection device 5 can by correlation liquid be injected into container 2.Hold on vessel 2 formed with a delivery port
22, the position that delivery port 22 is corresponded in the outside of container 2 is provided with a collection vessel 23, can will be more by the collection vessel 23
Remaining UV resin traps get up, and prevent the waste of material.
Described injection device 5 includes：One can connect by pump 51 that outside liquid is pumped into, with the bottom inlet of container 2
Water inlet pipe 52 and the outlet pipe 53 connected with the bottom of container 2.A magnetic valve 531 is provided with described outlet pipe 53.It is logical
The liquid of outside is injected into container 2 by the pump 51 for crossing injection device 5, when needing the liquid in discharge container 2 to seem, is opened out
Magnetic valve 531 on water pipe 53, the liquid in container 2 will be back to the liquid container for containing liquid again by drainpipe 53
54。
Because the material for being used to make 3D products in the present invention is UV resins, so in order to make UV resins to swim in liquid
Above body, described liquid is more than the liquid of UV resins, such as water using proportion.In order to further improve the proportion of water,
The liquid that salt solution can be used to be injected as injection device 5.
In the present invention, a replaceable liquid container 54 is set in the base 1, by the water inlet pipe 52 in injection device 5,
Outlet pipe 53 connects with the liquid container 54.This set can make liquid to recycle, without frequently addition.
Mechanical arm used in the present invention is triangle mechanical arm (Delta Robot), and this mechanical arm typically has
The 3-4 free degree, it is possible to achieve the operation on X/Y/Z directions, and the rotation in direction about the z axis.The triangle mechanical arm conduct
The ripe technology used is described in the patent document of many, and it is US 8621953 B2, US to see patent announcement number
20120103124 A1, US 20120171383 A1,20130049261A1 american documentation literature, it is proposed based on this
The related art scheme of kind mechanical arm.Mechanical arm of the present invention is also based on this principle and proposed, this machinery
Arm moves horizontally three-dimensional machinery arm relative in general has the advantages of speed is fast, and precision is high.
Specifically, the mechanical arm 3 described in the present embodiment one includes：Three guide rods that positive triangle is distributed and is vertically arranged
31st, it is flexibly connected with the upper end of a motion bar 33 in being flexibly connected a slide 32, each slide 32 on every guide rod 31, should
Active link is connected in a sliding seat 34 respectively for the lower end of three motion bars 33, three slides 32 respectively by draught line 35 with
Corresponding motor 30 interlocks, and drives the slide 32 interlocked therewith to be slided up and down along guide rod 31 by motor 30, so as to drive three groups
Motion bar 33 produces corresponding angle swinging and height change respectively, and sliding seat 34 is driven using the change in location of the motion bar 33
The operation done in the region set on X/Y/Z directions is enclosed in three guide rods 31.Specifically dark, three motors 30 are made by steel wire
Draught line 35 drive corresponding to slide 32 moved up and down along guide rod 31, by the height for adjusting each slide 32, so that it may pass through
The deflection angle of motion bar 33 realizes the stop at any point in three dimensions of sliding seat 34, you can realizes sliding seat 34 in X/
Operation on Y/Z directions.Certainly, the scope of activities of sliding seat 34 is limited at three guide rods 32 and enclosed in the regional extent set.
A spot light 4 is provided with sliding seat 34, the spot light 4 can provide the ultraviolet light of UV resin solidifications.
Spot light 4 in the present invention is similar with the laser head effect in existing laser powder sintering technology, except that, in laser
In sintered powder technique, laser head is burnt line by line as the generator of high temperature heat source to the setting regions of the powder bed of tiling
Knot, so as to complete to solidify to dusty material.The present invention be by ultraviolet light caused by spot light 4 to setting regions in the range of
UV resins are solidified.The diameter that spot light 4 produces ultraviolet light will have a direct impact to made 3D Product Precisions,
In order to ensure solidification point caused by spot light 4 is sufficiently small, convex lens can be used in spot light 4, by convex lens to transmitting
Ultraviolet light is assembled caused by source, and at work, it is ensured that spot light 4 and the distance in the face of the superiors UV resins are equal to
The focal length of convex lens, to make the solidification luminous point acted on UV resins face sufficiently small, so as to improve precision caused by made 3D.
In the present invention, three guide rods 31 of the mechanical arm 3 are fixed on the base 1, and container 2 is placed on base 1, described
Motor 30 be arranged in base 1.In being respectively arranged with UV light sources 9 on three described guide rods 31, the irradiation side of the UV light sources 9
To the container 2 pointed to positioned at center.
Above-mentioned UV light sources 9 can use the strip source set along guide rod 31.Stereolithography apparatus mode makes at present
When curing operation is carried out during 3D products, its UV solidification process is cumbersome, and process is messy.Current stereolithography apparatus
After the completion of, the object being formed by curing still carries mucus, the more soft remote object of quality, now not fully hardened, operation
Person must be cleaned using organic solvent (such as alcohol), and the mucus on surface is removed.Then whole product is placed on again
Cure site is thoroughly solidified by ultraviolet light, and after certain time, the product of printing just thoroughly hardens.It is and of the invention
After this technical scheme, in print procedure, the product of printing has already passed through preliminary curing operation, finally by light
When source 9 carries out that operation is fully cured, the first base of the product printed without movement, after saying that the liquid in container all excludes, directly
It is connected in container 2 and completes last curing operation, until first base is fully hardened, forms final 3D products.
See Fig. 5,6, it is shown, when making 3D products using said apparatus, still according to current 3D printing skill before making
Art, it is modeled by computer, and the 3D products 100 being produced is subjected to layering section and handled, and every layer of layer-by-layer preparation
Section 10.The height H of its midsagittal plane 10 is default, and H numerical value is generally 0.1-0.3mm, and specific numerical value is made by
3D Product Precisions depending on, usual section is more (H numerical value is smaller, and made 3D Product Precisions are higher), then from bottom to top
Constantly section is overlapped to form the 3D products to be made, comprised the following steps that：
The first step, calculate and want the volume V of printed product, injected slurry volume is V0 UV resins 7 in container 2, wherein V0>
V, it is enough for the dosage of UV resins 7 that makes 3D products to ensure.Under normal circumstances, after UV resins 7 pour into container 2, thereon
Surface is typically no to flood platform 21, it is necessary to which addition carrys out the liquid level of lifting UV resins 7 as the salt solution 70 of liquid into container 2.
Second step, salt solution 70 is injected into container 2 by the injection device 5 for being arranged on the side of container 2, by UV resins 7
Swim in above salt solution 70, and the horizontal plane of UV resins 7 is raised by increasing the injection rate of salt solution 70, according to the volumeter of container 2
The volume V1 of salt solution 70 for needing to inject for the first time is calculated, after volume V1 salt solution 9 is added in container 2, UV resins 7 are in salt
Lifting under the buoyancy of water 70, and make its upper surface not have platform 21 or the upper surface flush with platform 21.
3rd step, handled according to model section in advance in a computer, orlop in 3D products section will be made first
Section 101.Spot light 4 is opened, it will carry out primary solidification operation to the designated area of the UV resins 7 of the superiors, what it solidified
Region is corresponding with the orlop section 101 of model in computer, after the completion of first time carries out primary solidification operation, in container 2
UV resins in the setting regions of UV resins 7 of the superiors have been cured, because the resin that this layer is cured is exactly in platform
On 21, the resin on platform 21 in hole 211 is cured, and forms an entirety with platform 21, this is for the first time by primary solidification
Designated area UV resins are the orlop section 101 for forming the 3D products 100.Certainly, also can the first precuring on platform 21
Several layers of UV resins are as bottom surface, then carry out the precuring of orlop section 101.
4th step, the salt solution that injected slurry volume is V2 into container by injection device 5 are remaining due to the injection of V2 salt solution
The uncured horizontal plane of UV resins 7 raises certain altitude H again.V2 can be obtained by calculating, and its calculation is：Container 2
The area of cross section is S, and area S x height H cans then are shown into volume V2.When the salt solution that volume is V2 injects container
After in 2, the horizontal plane of UV resins 7 has been elevated height H, and then the designated area of UV resins 7 of raised portion is entered using spot light 4
Second of primary solidification operation of row, to form layer section 102 second from the bottom, and the layer section 102 second from the bottom will in solidification
An entirety is formed with orlop section 101.
According to section model set in advance, the step is constantly repeated, until the primary solidification operation of all sections is completed,
Form just base.Now, remaining UV resins 7 are still floated on above salt solution 70, while stack what is formed by the precuring of spot light 4
First base stability is simultaneously inadequate, it is necessary to further carry out curing operation.
5th step, the injection of the salt solution 70, now salt solution 70 of doses is injected into container again by injection device 5
Amount does not limit, and typically makes remaining UV resins 7 be spilt into by the outlet 22 of container 2 in collection vessel 23, Ran Houqu
Lower collection vessel 23, so as not in subsequent cure operation by it in the remaining UV resins collected together solidify.Finally, three are opened
UV light sources 9 are provided with guide rod 31, adjust corresponding intensity of illumination and light application time, UV is carried out to the first base in salt solution 70
Photocuring operation, make first base be fully cured, form required 3D products 100.Or first by salt solution 70 by the row of outlet pipe 23
Go out, then carry out curing operation.If made 3D small product sizes are larger or need certain support, it is proposed that directly in salt solution 70
Middle carry out curing operation, so using salt solution 70 buoyancy to 3D products 100 formed carry, prevent 3D products 100 just base by
Caved in not being fully cured.
UV resins 7 used in the present invention are a kind of photosensitive resins, can be fast in the short period of time after it is irradiated by light
Physical and chemical changes, and then the oligomer of crosslinking curing occur for speed.UV resins used herein are water-immiscible solvent
Type UV resins, for example, UV epoxy acrylates, UV urethane acrylates etc..
In above-described embodiment, for mechanical arm 3 using triangle mechanical arm, it can also use the portable three-dimensional machine of in general
Tool arm.As shown in Figure 7, the mechanical arm 3 in the present embodiment 2 employs the machinery that horizontal shifting platform 36 is combined with vertical motor 37
Arm, any movement that horizontal shifting platform 36 may be provided on X/Y horizontal planes, and vertical motor 37 can be provided in Z-direction
It is mobile, so as to realize three-dimensional movement.Such as see a kind of more work(for the Patent No. 201320343090.5 that the present inventor once applied
Can 3D printer, provide for a kind of horizontal shifting platform in the printer, the horizontal shifting platform may be implemented in X/Y direction of principal axis
On move horizontally.The portable three-dimensional machinery arm described in the present embodiment two is can be obtained by using the prior art.
Certainly, in 3D printer industry, many three-dimensional machinery arms design, the present invention can be as needed, and selection is suitable
Three-dimensional machinery arm 3.
As shown in Figure 8, this is three kinds of bases 1 of the embodiment of the present invention and the structural representation of the part of container 2, the present embodiment three
With above two embodiment institute differences are, be additionally provided with a cleaning device 8 in the side of container 2.When printing is completed
Afterwards, the inwall of container 2 may remain some UV resins, and now the UV resins of the residual should be cleaned, to prevent that it is solid
Change in container inner wall.The principle of the cleaning device 8 is similar with the principle of injection device 5, and it sets a cleaning solution to hold in base 1
Device 84, the solvent that can dissolve UV resins is contained in the cleaning liquid receptacle 84.The cleaning device 8 includes：One cleanable liquid container
Pump 81, the feed tube 82 connected with the bottom inlet of container 2 and the drain pipe connected with the bottom of container 2 that 84 internal solvents are pumped into
83.A magnetic valve 831 is provided with described drain pipe 83.After the completion of printing, and used salt solution 70 is arranged completely
After removing, the solvent in cleaning liquid receptacle 84 is pumped into container 2 by the pump 81 of cleaning device 8, after certain time, held
After the UV resins 7 remained on the inwall of device 2 are all dissolved, magnetic valve 831 is then turned on, by the solvent discharge in container 2 to cleaning
In liquid container 84, the cleaning to container 2 is so achieved that.
In summary, this device that the present invention uses, its is simple in construction, and it is the ratio using UV resins that it, which makes 3D products,
The lighter principle of weight, by water or other body fluid liftings UV resins, then the UV resins of the superiors are entered using UV spot lights
Row solidification, then liquid, continuous lifting UV resins are constantly added, and successively solidified.The present invention is by laser powder
The advantages of sintering processing and hot melt material spraying printing type, combines, and proposes a kind of preparation method and dress of new 3D products
Put, the present invention can not only make the higher three-dimensional objects of precision, and relative to traditional powder sintered mode of technology, it is made
It is lower to make cost, available for industrial production.
Certainly, the foregoing is only the specific embodiment of the present invention, be not to limit the scope of the present invention, it is all according to
The equivalent change or modification that construction, feature and principle described in scope of the present invention patent are done, all should be included in Shen of the present invention
Please be in the scope of the claims.
Claims (7)
1. a kind of method for making 3D products, this method is that the 3D products (100) that will be produced be layered section processing, and by
Layer makes every layer of section (10), forms the 3D products to be made by the continuous superposition of section (10), it includes following step
Suddenly,
The first step, the appropriate UV resins (7) of injection in a container (2), an adjustable level is set in the container (2)
The print platform (21) in face；
Second step, it is more than UV resins (7) by being arranged on the injection proportion into container (2) of the injection device (5) beside container (2)
Liquid (70), UV resins (7) are swum in into liquid (70) above, and UV resins are raised by increasing liquid (70) injection rate
(7) horizontal plane；
3rd step, the designated area of the UV resins (7) of the superiors is entered by being arranged on the UV spot lights (4) above container (2)
Row primary solidification operation, wherein described spot light (4) is installed in a three-dimensional machinery arm that can be moved up in X/Y/Z side
(3) on；When carrying out primary solidification operation for the first time, the UV resins of the superiors did not had print platform (21), i.e., preliminary for the first time solid
The designated area of change is fixed on print platform (21), and this is for the first time composition institute by the designated area UV resins of primary solidification
State the orlop section (101) of 3D products (100)；
4th step, inject the liquid (70) of doses, the remaining uncured UV of order into container again by injection device (5)
Resin (7) horizontal plane raises operational height again, and UV resins (7) designated area of raised portion is entered using spot light (4)
Second of primary solidification operation of row, to form layer section (102) second from the bottom, and the layer section (102) second from the bottom with it is most lower
Layer section (101) superposition forms an entirety, repeats the step, until completing the primary solidification operation of all sections, forms institute
Make the first base of 3D products (100)；
5th step, the liquid (70) of doses is injected into container again by injection device (5), until remaining UV resins
(7) overflowed by container (2), UV photocuring operations then are carried out to the first base in liquid (70), make first base be fully cured, shape
Into required 3D products (100).
A kind of 2. method for making 3D products according to claim 1, it is characterised in that：In the 5th described step, by holding
Device (2) overflows UV resins (7) and directly reclaimed by being arranged on the collection vessel (23) of container (2) side.
A kind of 3. device for making 3D products, it is characterised in that：The device includes：
One container (2), the interior platform (21) for being provided with an adjustable horizontal plane of the container (2), the i.e. platform (21) have three
The individual strong point (212), each strong point (212) can be achieved to adjust up and down, so as to adjust the levelness of platform (21), institute
Hole (211) is distributed on the platform (21) in container (2) stated；
One spot light (4), the spot light (4) are suspended in platform by a mechanical arm that can be moved up in X/Y/Z side (3)
(21) top, and produce the ultraviolet light of UV solidifications；
One injection device (5), the injection device (5) are arranged on container (2) side, and its delivery outlet connects with container (2), passes through note
Enter the liquid that device (5) injection proportion into container (2) is more than UV resins；By the proportion larger body fluid lifting UV resins,
Then the UV resins of the superiors are solidified using UV spot lights, then constantly adds liquid, continuous lifting UV resins, and
Successively solidified；
Described injection device (5) have one can be by pump (51) that outside liquid is pumped into, the water inlet connected with container (2) bottom
Pipe (52) and the outlet pipe (53) connected with container (2) bottom；
The side of described container (2) is additionally provided with a cleaning device (8), and a cleaning liquid receptacle is set in base (1)
(84), the cleaning device (8) includes：One can by pump (81) that cleaning liquid receptacle (84) internal solvent is pumped into, with container (2) bottom
The feed tube (82) of entrance connection and the drain pipe (83) connected with container (2) bottom；Set on described drain pipe (83)
There is a magnetic valve (831).
A kind of 4. device for making 3D products according to claim 3, it is characterised in that：Container (2) upper end is formed
There is a delivery port (22), the position that delivery port (22) is corresponded in the outside of container (2) is provided with a collection vessel (23).
A kind of 5. device for making 3D products according to claim 3 or 4, it is characterised in that：Described mechanical arm (3) is adopted
With triangle mechanical arm, it includes：Covered in three guide rods (31) that positive triangle is distributed and is vertically arranged, on every guide rod (31)
If a slide (32), each slide (32) are flexibly connected with a motion bar (33) upper end, under three motion bars (33)
End is respectively and movably connected in a sliding seat (34), and three slides (32) pass through draught line (35) and corresponding motor (30) respectively
Interlock, drive the slide (32) interlocked therewith to be slided up and down along guide rod (31) by motor (30), to drive motion bar (33) to transport
OK, so as to driving sliding seat (34) to enclose the operation done in the region set on X/Y/Z directions in three guide rods (31).
A kind of 6. device for making 3D products according to claim 5, it is characterised in that：The device also includes a base
(1), three guide rods (31) of the mechanical arm (3) are fixed on the base (1), and container (2) is placed in upper three guide rods of base (1)
(31) enclose in the region set, described motor (30) is arranged in base (1)；And be additionally provided with the base (1) one with
Water inlet pipe (52), the liquid container (54) of outlet pipe (53) connection in injection device (5).
A kind of 7. device for making 3D products according to claim 6, it is characterised in that：Described container (2) is using saturating
Bright material, in being respectively arranged with UV light sources (9) on three described guide rods (31), the direction of illumination of the UV light sources (9) points to position
Container (2) in center；Described spot light (4) is a laser head that can produce ultraviolet light, and it is fixed in sliding seat (34).
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| CN201410563384.8A CN104325643B (en) | 2014-10-18 | 2014-10-18 | A kind of method and its device for making 3D products |
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