CN109421259A - A kind of 3D printer accelerating solidfied material and anti-sticking UF membrane using air pressure change - Google Patents

A kind of 3D printer accelerating solidfied material and anti-sticking UF membrane using air pressure change Download PDF

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Publication number
CN109421259A
CN109421259A CN201710770502.6A CN201710770502A CN109421259A CN 109421259 A CN109421259 A CN 109421259A CN 201710770502 A CN201710770502 A CN 201710770502A CN 109421259 A CN109421259 A CN 109421259A
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China
Prior art keywords
storage tank
resin
resin storage
sticking
circle
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CN201710770502.6A
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Chinese (zh)
Inventor
杜晖
姚懿
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Wuxi Projection 3d Digital Technology Co Ltd
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Wuxi Projection 3d Digital Technology Co Ltd
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Priority to CN201710770502.6A priority Critical patent/CN109421259A/en
Publication of CN109421259A publication Critical patent/CN109421259A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B33ADDITIVE MANUFACTURING TECHNOLOGY
    • B33YADDITIVE 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
    • B33Y30/00Apparatus for additive manufacturing; Details thereof or accessories therefor

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)

Abstract

The present invention provides a kind of 3D printer for accelerating solidfied material and anti-sticking UF membrane using air pressure change, including resin storage tank, shift mechanism, photocuring imaging system and resin storage tank auxiliary device, shift mechanism is equipped with above the resin storage tank;Photocuring imaging system is equipped with below resin storage tank;And resin storage tank auxiliary device is made of press mold circle, sealing ring, support film circle, slot bottom seat, optically transparent material, retainer plate and Pneumatic controller, to fixing resin slot.Rationally, antiadhesion barrier is clamped by press mold circle and support film circle for the configuration of the present invention is simple, design, so that shift mechanism, in each lifting, current solidfied material being capable of quick, complete and anti-sticking UF membrane;Meanwhile shift mechanism, in lifting, Pneumatic controller can be evacuated resin slot chamber, so that air pressure reduces in chamber, since chamber internal and external pressure difference is pressed down, solidfied material and antiadhesion barrier are detached from antiadhesion barrier, it is further reduced the time wasted in print procedure, accelerates print speed.

Description

A kind of 3D printer accelerating solidfied material and anti-sticking UF membrane using air pressure change
Technical field
The present invention relates to 3D printing technique field, specially one kind can accelerate solidfied material and antiadhesion barrier using air pressure change Isolated 3D printer.
Background technique
Normal printer is often used in daily life, can be used to the flat objects of printing calculator design.And institute The 3D printer of meaning and the working principle of normal printer are essentially identical, and the material only printed is somewhat different.Normal printer Printed material be ink and paper, and 3D printer is provided with different " printed materials " such as metal, ceramics, plastics, sand.It beats After print machine is connect with computer, " printed material " can be stacked up in layers by computer control, finally on computer Blueprint become in kind.Generally, 3D printer is a kind of equipment that " can print " true 3D object.It can be used to Printer device people, toy car and various models, or even can also be food.Why be generically called " printer " be because The technical principle of normal printer is had references to for it, and the process of layering processing and inkjet printing are also quite similar.3D printer There are many kinds of the forming techniques of use, such as: stereolithography apparatus method, melt-laminated molding technology, selective laser sintering Deng.Stereolithography apparatus method is high, high-quality by formed precision to enjoy higher reputation in 3D printing field.Technology master If being radiated at the surface (material is mainly resin) of photo-curing material using the light of certain strength, it is allowed to complete on a layer Print job is completed for one layer to carry out next layer later, be moved in circles, until being finally completed works.Photocuring printer in order to Solidify imaging system to resin, and is detached from the bottom of the resin after solidifying and resin storage tank smoothly, resin trench bottom one As be made of antiadhesion barrier and glass, antiadhesion barrier invests on optically transparent material.Antiadhesion barrier has certain elasticity, works as shift mechanism When being lifted, solidfied material will not be detached from antiadhesion barrier immediately, but can be just detached from after antiadhesion barrier is pulled to a certain degree, This allows for shift mechanism in every layer of printing, and the distance moved up will be far longer than the thickness of this layer, after moving up again under Drop, one on the other between consume the plenty of time so that delay is printed with, to reduce curing efficiency.
Summary of the invention
The technical problem to be solved by the present invention is to overcome the existing defects, provides a kind of structurally reasonable, while print speed Fast photocuring 3D printer.
In order to solve the above-mentioned technical problems, the present invention provides the following technical solutions:
It is a kind of using air pressure change accelerate solidfied material and anti-sticking UF membrane 3D printer, including resin storage tank, shift mechanism, Photocuring imaging system and resin storage tank auxiliary device;Shift mechanism is equipped with above resin storage tank;And photocuring is equipped with below resin storage tank Imaging system;Resin trench bottom is connected to resin storage tank auxiliary device;Resin storage tank auxiliary device by press mold circle, sealing ring, support film circle, Slot bottom seat, optically transparent material, retainer plate and Pneumatic controller composition, to fixing resin slot.
Further, resin trench bottom is antiadhesion barrier.
Further, press mold circle is equipped with above anti-sticking film edge;Sealing ring is equipped between antiadhesion barrier and press mold circle;It is anti-sticking Support film circle is equipped with below film edge;And it holds in the palm and slot bottom seat is installed under film circle;It is provided with venthole on slot bottom seat, is connected by tracheae outer The Pneumatic controller in portion;Meanwhile optically transparent material is equipped in slot base bottom;It is equipped with above optically transparent material edge Sealing ring, and retainer plate is equipped with below optically transparent material edge.
Further, antiadhesion barrier, optically transparent material and slot bottom seat collectively form a chamber;The ventilation opened on slot bottom seat Hole is just in the position of chamber.
The beneficial effects of the present invention are: (1) resin storage tank assistant apparatus structure is simple, rationally, entire configuration is produced into for design This is low;(2) antiadhesion barrier is clamped by press mold circle and support film circle, so that shift mechanism is after the completion of each section exposes, upwards When lifting certain altitude, the solidfied material of current curing completion can be quick, complete with anti-sticking UF membrane, and be bonded in workbench or On last molding resin layer, the time wasted in print procedure is reduced;(3) shift mechanism is when being lifted up, air pressure control Device processed can be evacuated the chamber in slot bottom seat, so that air pressure reduces in chamber, antiadhesion barrier is due to chamber internal and external pressure difference It is pressed down, solidfied material and antiadhesion barrier are detached from, and are further reduced the time wasted in print procedure;(4) next layer of printing starts Before, Pneumatic controller can be inflated chamber, restore antiadhesion barrier, and shift mechanism only needs to move up in this process Minimum distance is moved, the time originally one on the other back and forth is eliminated, greatly accelerates print speed.
Detailed description of the invention
Attached drawing is used to provide further understanding of the present invention, and constitutes part of specification, with reality of the invention It applies example to be used to explain the present invention together, not be construed as limiting the invention.In the accompanying drawings:
Fig. 1 is structural schematic diagram of the invention.
Specific embodiment
Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings, it should be understood that preferred reality described herein Apply example only for the purpose of illustrating and explaining the present invention and is not intended to limit the present invention.
In the present invention, in the absence of explanation to the contrary, the noun of locality used such as " upper and lower, left and right " typically refers to Upper and lower, left and right in attached drawing, " inside and outside " refer to relative to the inside and outside of component outline.
As shown in Figure 1, a kind of 3D printing for accelerating solidfied material and anti-sticking UF membrane using air pressure change of the present invention Machine, including resin storage tank 1, shift mechanism 2, photocuring imaging system and resin storage tank auxiliary device.
Wherein, material of the resin storage tank 1 to hold photosensitive resin, as 3D printing.Pulling machine is equipped with above resin storage tank 1 Structure 2.The bottom surface of shift mechanism 2 is exactly workbench, from top to down facing to resin storage tank 1.In print procedure, molding solidfied material meeting It is lifted from resin storage tank 1 by shift mechanism 2 in layer on the table.
Photocuring imaging system is equipped with below resin storage tank 1, imaging surface is placed exactly in the bottom of resin storage tank 1.Resin storage tank 1 Bottom be made of antiadhesion barrier 3.Antiadhesion barrier 3 uses FEP material, and film light transmittance reaches 85% or more, that is to say, that entire resin The bottom of slot 1 is light transmission, resin material is irradiated through bottom of pond convenient for light source, so that resin material be solidified.And 3 energy of antiadhesion barrier Enough photosensitive resin is avoided to stick on material, influence light transmittance, reduces printing effect.And antiadhesion barrier 3 has good ductility, It is unlikely to deform.
Data of the photocuring imaging system to receive, handle required printed matter, and light source is provided for curing resin material. When carrying out 3D printing, photocuring imaging system receives print data, its light region is controlled, to form each cross-sectional layer institute The pattern needed, i.e. light pattern, and the solidification that resin material completes each cross-sectional layer is irradiated by the light pattern.
And resin storage tank auxiliary device is by press mold circle 4, sealing ring 5, support film circle 6, slot bottom seat 7, optically transparent material 8, fixation Circle 9 and Pneumatic controller composition, to fixing resin slot 1.
Resin storage tank auxiliary device is to fixing resin slot 1 and assisted resin slot 1 carries out print job.In 1 bottom of resin storage tank 3 edge of antiadhesion barrier be equipped with press mold circle 4 and support film circle 6 carry out both ends clamping, press mold circle 4 is pressed on antiadhesion barrier 3, and holds in the palm film circle 6 are placed under antiadhesion barrier 3, the two collective effect, make antiadhesion barrier 3 always in tight state, in this way, in print procedure, resin It is able to uniform curing, model can be formed smoothly.Meanwhile sealing ring 5a is installed between antiadhesion barrier 3 and press mold circle 4.Sealing 5a is enclosed to sealing resin slot 1, so that photosensitive resin is not leaked and causes the accident.It and is the slot bottom seat installed below support film circle 6 7, further to tighten antiadhesion barrier.Slot bottom seat 7 is also the fixing seat of entire resin storage tank 1.There is a concave in 7 bottom of slot bottom seat Interface is sequentially installed with sealing ring 5b, optically transparent material 8 and retainer plate 9 at the female-type interface of 7 bottom of slot bottom seat.In slot Inside pedestal 7, a good chamber of air-tightness is formed between optically transparent material 8 and antiadhesion barrier 3.Sealing ring 5b is to seal Entire chamber guarantees that it will not gas leakage.And retainer plate 9 is to fixed optically transparent material 8.Meanwhile it being opened in one end of slot bottom seat 7 As soon as there is a venthole 10, which is located on chamber, and snorkel can be set up in venthole 10, connects external gas Pressure control device.
In use process of the invention, liquid photosensitive resin is injected into resin storage tank 1 first;Shift mechanism 2 is transported downwards It is dynamic, initialization position is reached, so that the workbench of 2 bottom surface of shift mechanism is immersed into liquid photosensitive resin.It is light-cured into picture After system receives and processes type information, continuous to play level image information, shift mechanism 2 is with setting speed continuance lifting.? In print procedure, since antiadhesion barrier 3 is clamped by press mold circle and support film circle, shift mechanism 2 is upward after the completion of each section exposes When lifting certain altitude, the solidfied material of current curing completion can be separated with antiadhesion barrier 3 quickly, completely, and be bonded in workbench Or on last molding resin layer, reduce the time wasted in print procedure.Meanwhile when shift mechanism 2 is lifted up, gas Pressure control device can be evacuated the chamber formed in slot bottom seat 7 by snorkel, so that air pressure reduces in chamber, antiadhesion barrier 3 since chamber internal and external pressure difference is pressed down, and solidfied material and antiadhesion barrier 3 are detached from, and can shorten the climb of shift mechanism 2, It is further reduced the time wasted in print procedure.Later, Pneumatic controller is inflated chamber, replys antiadhesion barrier 3 Original state, this process elapsed time is extremely short, in fact, shift mechanism 2 only needs to move up minimum distance, in practical operation but The time originally one on the other back and forth is eliminated, print speed is substantially increased.Photocuring imaging system controls light beam selectivity It is irradiated on resin, shift mechanism 2 constantly by cured resin pull-up, is finally completed part printing.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, although referring to aforementioned reality Applying example, invention is explained in detail, for those skilled in the art, still can be to aforementioned each implementation Technical solution documented by example is modified or equivalent replacement of some of the technical features.It is all in essence of the invention Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.

Claims (4)

1. it is a kind of using air pressure change accelerate solidfied material and anti-sticking UF membrane 3D printer, it is characterised in that: including resin storage tank, Shift mechanism, photocuring imaging system and resin storage tank auxiliary device;Shift mechanism is equipped with above the resin storage tank;The resin storage tank Lower section is equipped with photocuring imaging system;The resin trench bottom is connected with resin storage tank auxiliary device;The resin storage tank auxiliary device It is made of press mold circle, sealing ring, support film circle, slot bottom seat, optically transparent material, retainer plate and Pneumatic controller.
2. a kind of 3D printer for accelerating solidfied material and anti-sticking UF membrane using air pressure change according to claim 1, Be characterized in that: the resin trench bottom is antiadhesion barrier.
3. a kind of 3D printer for accelerating solidfied material and anti-sticking UF membrane using air pressure change according to claim 1 or 2, It is characterized by: being equipped with press mold circle above the anti-sticking film edge;Sealing ring is equipped between the antiadhesion barrier and press mold circle;It is described Support film circle is equipped with below anti-sticking film edge;Slot bottom seat is installed under the support film circle;It is provided with venthole on the slot bottom seat, is passed through Pneumatic controller outside tracheae connection;Optically transparent material is equipped in slot base bottom;The optically transparent material edge Top is equipped with sealing ring;Retainer plate is equipped with below the optically transparent material edge.
4. a kind of 3D printer for accelerating solidfied material and anti-sticking UF membrane using air pressure change according to claim 3, Be characterized in that: the antiadhesion barrier, optically transparent material and slot bottom seat collectively form a chamber;Venthole on the slot bottom seat It is opened in chamber location.
CN201710770502.6A 2017-08-31 2017-08-31 A kind of 3D printer accelerating solidfied material and anti-sticking UF membrane using air pressure change Pending CN109421259A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110103466A (en) * 2019-06-15 2019-08-09 大理大学 3D printing structure and its Method of printing
CN110524877A (en) * 2019-08-05 2019-12-03 杭州德迪智能科技有限公司 A kind of optical soliton interaction control device and method
CN113635553A (en) * 2021-07-21 2021-11-12 深圳摩方新材科技有限公司 3D printing system and method

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US20090130449A1 (en) * 2007-10-26 2009-05-21 Envisiontec Gmbh Process and freeform fabrication system for producing a three-dimensional object
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CN113635553A (en) * 2021-07-21 2021-11-12 深圳摩方新材科技有限公司 3D printing system and method

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