CN109910304A - A kind of matrix form light source of 3D printer - Google Patents
A kind of matrix form light source of 3D printer Download PDFInfo
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- CN109910304A CN109910304A CN201910376613.8A CN201910376613A CN109910304A CN 109910304 A CN109910304 A CN 109910304A CN 201910376613 A CN201910376613 A CN 201910376613A CN 109910304 A CN109910304 A CN 109910304A
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- light source
- matrix form
- form light
- slide unit
- optical axis
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Abstract
The invention discloses a kind of matrix form light sources of 3D printer, including driving device and matrix form light source；The driving device is hoistable platform, for controlling matrix form light source at a distance from 3D printing screen；The matrix form light source is uniformly gathered by LED light to be formed.The hoistable platform of driving device is made of ball screw, feed screw nut, stepper motor, sliding optical axis, optical axis sliding block and slide unit；The left and right sides edge position of slide unit is arranged in the feed screw nut, to increase stability when driving device operation；Four angles of slide unit are arranged in the sliding optical axis, and sliding optical axis and optical axis sliding block cooperate, for guiding the motion path of slide unit, the stability of enhancing slide unit movement；The ball screw and feed screw nut cooperate, and the bottom end of ball screw connects stepper motor, and the adjusting to slide unit height is realized under the driving of stepper motor.Solve the problems, such as that the light source exposure intensity of the 3D printer of existing photocuring principle is different and can not produce large size product.
Description
Technical field
The present invention relates to the light sources of optical imaging system in photocuring 3D printing equipment, and in particular to a kind of 3D printer
Matrix form light source.
Background technique
One mainstream branch of 3D printing technique is photocuring 3D printing technique, it is to irradiate liquid light using ultraviolet light beam
After quick resin, make photosensitive resin that photopolymerization reaction then cured principle occur, keeps material point-by-point or successively cumulative molding.Light is solid
Change 3D printing technique and is broadly divided into SLA and DLP or LCD shadow casting technique.Wherein SLA is known as stereolithography apparatus technology, it is
It quickly scans to be irradiated on photosensitive resin point by point using laser beam and makes its curing molding.SLA technology is also mainly for photosensitive tree
Rouge material is formed, and has the characteristics that be widely used.DLP and LCD shadow casting technique is then by the way that flood image is passed through projection
Camera lens projects on photosensitive resin, and successively superposition molding has print speed its main feature is that flood printing can be completed once
Fastly, feature with high accuracy.
DLP shadow casting technique is to develop a kind of photocuring 3D printing technique earlier, its core component is to utilize Dezhou instrument
The digital light processing chip of device production.Since DLP chip is the exclusive patented technology of Texas Instrument, chip price is more expensive, especially
Be high pixel chip price it is extremely expensive, limit the development of large scale 3D printing technique.Further, since DLP chip needs
Off-axis illumination, so that the assembling and setting difficulty of optical system increases.
LCD shadow casting technique is then that it is similar to DLP shadow casting technique to print principle using LCD as pictcure generator.It is different
Be that LCD application is extremely extensive, different field application different pixels, various sizes of LCD in society, so that alternative
LCD is many kinds of, therefore compares DLP shadow casting technique, its main feature is that cost is relatively low.
But current shadow casting technique is limited to light source, single light source irradiation system is due to its radial characteristic, so that figure
As the intensity of light is different, cause printed product at type hardness tester unevenness, and since single light source irradiates, small size 3D can only be met
Printer use demand can not carry out the production of large size product.
It is therefore desirable to carry out technology upgrading to the light source of the 3D printer of existing photocuring principle, realization is meeting quality
The purpose that larger sized product is printed under the premise of it is required that.
Summary of the invention
The purpose of the present invention is to provide a kind of matrix form light sources of 3D printer, to solve existing photocuring principle
The problem of light source exposure intensity of 3D printer is different and can not produce large size product.
In order to solve the above technical problems, the present invention adopts the following technical scheme:
A kind of matrix form light source of 3D printer, including driving device and matrix form light source；The driving device is hoistable platform,
For controlling matrix form light source at a distance from 3D printing screen；The matrix form light source is uniformly gathered by LED light to be formed.
Preferably, the hoistable platform of above-mentioned driving device is by ball screw, feed screw nut, stepper motor, sliding optical axis, light
Axis sliding block and slide unit composition；The left and right sides edge position of slide unit is arranged in the feed screw nut, to increase driving device operation
When stability；Four angles of slide unit are arranged in the sliding optical axis, and sliding optical axis and optical axis sliding block cooperate, for guiding slide unit
Motion path, enhancing slide unit movement stability；The ball screw and feed screw nut cooperate, the bottom end connection of ball screw
Stepper motor realizes the adjusting to slide unit height under the driving of stepper motor.
Preferably, above-mentioned matrix form light source is surrounded by barn door, and barn door is fixed by fixing axle, and fixing axle passes through spiral shell
Mother is fixedly connected with slide unit.
Preferably, the two sides of above-mentioned barn door are equipped with cooling fin, for radiating when matrix form light source working.
Preferably, above-mentioned 3D printing screen is LCD screen.
When work, when needing to carry out print job, driving device is by eigenmatrix formula lamp motion to apart from 3D printing
Screen properly distance, after the completion of print job, driving device is by matrix light source movement to apart from 3D printing screen most long distance
From to extend the LED lamp bead service life of 3D printing screen and matrix form light source.
The present invention has the advantage that
1. using after matrix form light source design of the invention, compared to photocuring 3D printer now on the market, the present invention can be with
It realizes and prints large scale, the purpose of degree of precision product in the case where more inexpensive.
2. using after matrix form light source design of the invention, compared to photocuring 3D printer at present on the market, the present invention
Under the premise of meeting large size product processing, used matrix form light source uniform illumination and intensity abundance.
3. inventive drive means realize the purpose of regulation light source distance, the time for exposure is saved, light source is extended
With the service life of 3D printing screen.
Detailed description of the invention
Fig. 1 is a kind of assembly of the barn door for omitting front side of the matrix form light source embodiment of 3D printer of the present invention
Figure；
Fig. 2 is a kind of top view of the matrix form light source embodiment of 3D printer of the present invention.
In figure: 1, sliding optical axis；2, ball screw；3, cooling fin；4, optical axis sliding block；5, feed screw nut；6, barn door；7,
Matrix form light source；8, fixing axle；9, nut；10, slide unit.
Specific embodiment
Embodiments of the present invention are illustrated by particular specific embodiment below, those skilled in the art can be by this explanation
Content disclosed by book is understood other advantages and efficacy of the present invention easily.
It should be clear that this specification structure depicted in this specification institute accompanying drawings, ratio, size etc., only to cooperate specification to be taken off
The content shown is not intended to limit the invention enforceable qualifications so that those skilled in the art understands and reads, therefore
Do not have technical essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size are not influencing the present invention
Under the effect of can be generated and the purpose that can reach, it should all still fall in disclosed technology contents and obtain the model that can cover
In enclosing.Meanwhile cited such as "upper", "lower", " left side ", the right side in this specification ", the term of " centre ", be merely convenient to chat
That states is illustrated, rather than to limit the scope of the invention, relativeness is altered or modified, and is changing skill without essence
It is held in art, when being also considered as the enforceable scope of the present invention.
Embodiment 1
A kind of matrix form light source of 3D printer, including driving device and matrix form light source 7；The driving device is that lifting is flat
Platform, for controlling matrix form light source 7 at a distance from 3D printing screen；Referring to fig. 2, the matrix form light source 7 is uniformly close by LED light
Cloth composition.
Referring to Fig. 1, in embodiment, the hoistable platform of above-mentioned driving device is by ball screw 2, feed screw nut 5, stepping electricity
Machine, sliding optical axis 1, optical axis sliding block 4 and slide unit 10 form；The left and right sides edge position of slide unit 10 is arranged in the feed screw nut 5
It sets, to increase stability when driving device operation；Four angles of slide unit 10, the sliding light is arranged in the sliding optical axis 1
Axis 1 and optical axis sliding block 4 cooperate, for guiding the motion path of slide unit 10, the stability that enhancing slide unit 10 moves, actual implementation
When, sliding 1 diameter of optical axis is chosen to be 10mm；The ball screw 2 cooperates with feed screw nut 5, and the bottom end of ball screw 2 connects step
Into motor, the adjusting to 10 height of slide unit is realized under the driving of stepper motor, ball screw selects M8 screw thread when actual implementation.
In embodiment, above-mentioned matrix form light source 7 is surrounded by barn door 6, and barn door 6 is fixed by fixing axle 8, fixing axle
8 are fixedly connected by nut 9 with slide unit 10.
In embodiment, the two sides of above-mentioned barn door 6 are equipped with cooling fin 3, radiate when working for matrix form light source 7.
In embodiment, above-mentioned 3D printing screen is LCD screen.
In embodiment, above-mentioned matrix form light source 7 is installed on 10 center of slide unit.
When work, when needing to carry out print job, driving device is operated by stepper motor, drives 2 turns of ball screw
It is dynamic, under the cooperation of feed screw nut 5, eigenmatrix formula light source 7 is moved to apart from 3D printing screen properly distance, when printing is made
After the completion of industry, driving device is operated by stepper motor, drives ball screw 2 to rotate, under the cooperation of feed screw nut 5, by square
Configuration light source 7 is moved to apart from 3D printing screen maximum distance, to extend the LED lamp bead of 3D printing screen and matrix form light source 7
Service life.
After matrix form light source design of the invention, light source uniform illumination and intensity are sufficient, compared to now on the market
Photocuring 3D printer, the present invention may be implemented to print large scale, the purpose of degree of precision product in the case where more inexpensive；
The time for exposure is saved simultaneously, extends the service life of light source and 3D printing screen.
Although above having used general explanation and specific embodiment, the present invention is described in detail, at this
On the basis of invention, it can be made some modifications or improvements, this will be apparent to those skilled in the art.Therefore,
These modifications or improvements without departing from theon the basis of the spirit of the present invention are fallen within the scope of the claimed invention.
Claims (6)
1. a kind of matrix form light source of 3D printer, it is characterised in that: including driving device and matrix form light source (7)；The drive
Dynamic device is hoistable platform, for controlling matrix form light source (7) at a distance from 3D printing screen；The matrix form light source (7) by
LED light, which is uniformly gathered, to be formed.
2. a kind of matrix form light source of 3D printer according to claim 1, which is characterized in that the liter of the driving device
Platform is dropped by ball screw (2), feed screw nut (5), stepper motor, sliding optical axis (1), optical axis sliding block (4) and slide unit (10) group
At；Feed screw nut (5) setting is in the left and right sides edge position of slide unit (10), to increase stabilization when driving device operation
Property；Sliding optical axis (1) setting is slided optical axis (1) and optical axis sliding block (4) and is cooperated, for drawing at four angles of slide unit (10)
The motion path of slide guide platform (10), the stability of enhancing slide unit (10) movement；The ball screw (2) is matched with feed screw nut (5)
It closes, the bottom end of ball screw (2) connects stepper motor, and the adjusting to slide unit (10) height is realized under the driving of stepper motor.
3. a kind of matrix form light source of 3D printer according to claim 1, it is characterised in that: the matrix form light source
(7) it is surrounded by barn door (6), barn door (6) is fixed by fixing axle (8), and fixing axle (8) passes through nut (9) and slide unit
(10) it is fixedly connected.
4. a kind of matrix form light source of 3D printer according to claim 3, it is characterised in that: the barn door (6)
Two sides are equipped with cooling fin (3), for radiating when matrix form light source (7) work.
5. a kind of matrix form light source of 3D printer according to claim 1, it is characterised in that: the 3D printing screen is
LCD screen.
6. a kind of matrix form light source of 3D printer according to claim 1, it is characterised in that: the matrix form light source
(7) it is installed on slide unit (10) center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910376613.8A CN109910304A (en) | 2019-05-02 | 2019-05-02 | A kind of matrix form light source of 3D printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910376613.8A CN109910304A (en) | 2019-05-02 | 2019-05-02 | A kind of matrix form light source of 3D printer |
Publications (1)
| Publication Number | Publication Date |
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| CN109910304A true CN109910304A (en) | 2019-06-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910376613.8A Pending CN109910304A (en) | 2019-05-02 | 2019-05-02 | A kind of matrix form light source of 3D printer |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015054340A2 (en) * | 2013-10-11 | 2015-04-16 | Global Filtration Systems, A Dba Of Gulf Filtration Systems Inc. | Apparatus and method for forming three-dimensional objects using a curved build platform or curved solidification substrate |
| CN204914584U (en) * | 2015-08-25 | 2015-12-30 | 广州丽格打印耗材有限公司 | Novel adjustable rapid prototyping machine in light source position |
| CN207128271U (en) * | 2017-07-20 | 2018-03-23 | 四川建筑职业技术学院 | A kind of photocuring 3D printer based on FDM printing techniques |
| CN108466427A (en) * | 2017-02-23 | 2018-08-31 | 上海冠显光电科技有限公司 | A kind of photocuring 3D printing optical module and photocuring 3D printing system |
-
2019
- 2019-05-02 CN CN201910376613.8A patent/CN109910304A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015054340A2 (en) * | 2013-10-11 | 2015-04-16 | Global Filtration Systems, A Dba Of Gulf Filtration Systems Inc. | Apparatus and method for forming three-dimensional objects using a curved build platform or curved solidification substrate |
| CN204914584U (en) * | 2015-08-25 | 2015-12-30 | 广州丽格打印耗材有限公司 | Novel adjustable rapid prototyping machine in light source position |
| CN108466427A (en) * | 2017-02-23 | 2018-08-31 | 上海冠显光电科技有限公司 | A kind of photocuring 3D printing optical module and photocuring 3D printing system |
| CN207128271U (en) * | 2017-07-20 | 2018-03-23 | 四川建筑职业技术学院 | A kind of photocuring 3D printer based on FDM printing techniques |
Non-Patent Citations (1)
| Title |
|---|
| 莫健华等: "《液态树脂光固化3D打印机》", 30 September 2016, 西安电子科技大学出版社 * |
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Application publication date: 20190621 |