WO2022110554A1 - 一种光固化3d打印装置 - Google Patents

一种光固化3d打印装置 Download PDF

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Publication number
WO2022110554A1
WO2022110554A1 PCT/CN2021/076079 CN2021076079W WO2022110554A1 WO 2022110554 A1 WO2022110554 A1 WO 2022110554A1 CN 2021076079 W CN2021076079 W CN 2021076079W WO 2022110554 A1 WO2022110554 A1 WO 2022110554A1
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WIPO (PCT)
Prior art keywords
curing
light
light source
printing device
support arm
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PCT/CN2021/076079
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English (en)
French (fr)
Inventor
刘辉林
唐京科
陈春
敖丹军
张晓明
Original Assignee
深圳市创想三维科技有限公司
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Publication of WO2022110554A1 publication Critical patent/WO2022110554A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/10—Processes of additive manufacturing
    • B29C64/106—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
    • B29C64/124—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
    • B29C64/129—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified characterised by the energy source therefor, e.g. by global irradiation combined with a mask
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
    • B29C64/264—Arrangements for irradiation
    • B29C64/277—Arrangements for irradiation using multiple radiation means, e.g. micromirrors or multiple light-emitting diodes [LED]
    • B29C64/282—Arrangements for irradiation using multiple radiation means, e.g. micromirrors or multiple light-emitting diodes [LED] of the same type, e.g. using different energy levels
    • 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

Definitions

  • the utility model relates to the technical field of 3D printing, in particular to a light-curing 3D printing device.
  • the purpose of the present utility model is to overcome the deficiencies of the prior art and provide a light-curing 3D printing device to solve the technical problem of poor quality of LCD light-curing caused by uneven light sources in the prior art.
  • the utility model adopts the following technical solutions:
  • An embodiment of the present utility model provides a light-curing 3D printing device, comprising: a base, a support arm, a curing processing table, a light source assembly, a forming platform, a lifting assembly and a material box; the support arm is connected to the base, so The curing table is connected to the middle of the support arm, the lift assembly is connected to the support arm, the forming platform is connected to the lift assembly, and the material box is set on the curing table; when During photocuring molding, the lifting component drives the molding platform to descend to the curing processing platform, and the light source component emits light and penetrates the curing processing platform in sequence, and the light source disposed on the curing processing platform A display screen, which projects the image displayed on the display screen onto the feed chute.
  • the light source assembly includes: an integrating light source, a reflector and a collimating lens, the light emitted by the integrating light source is reflected on the collimating lens by the reflecting mirror, and the collimating lens is used for reflecting The incoming light is collimated.
  • the integral light source includes: a circuit board and ultraviolet lamp beads distributed and connected to the circuit board in a matrix.
  • a coating layer is provided on the reflecting surface of the reflecting mirror.
  • the collimating lens is a Fresnel lens.
  • the reflector is connected to the base, the integrating light source is connected to the curing table, and the collimating lens is connected to the lower table of the curing table.
  • the forming platform includes: a cantilever, a connecting seat and a curing plate, the cantilever is connected to the lifting assembly, the connecting seat is connected to the cantilever, and the curing plate is connected to the connecting seat.
  • the lifting assembly includes: a guide rail connected to the support arm, a slider slidably connected to the guide rail and a drive mechanism connected to the support arm, the cantilever is connected to the slider and the lift end of the drive mechanism.
  • the driving mechanism is a ball screw.
  • the light source assembly further includes a heat sink, the integrating light source is connected to the heat sink, and the heat sink includes: a heat sink body, and the heat sink body has a connecting surface for connecting the integrating light source, A light-blocking eaves is arranged above the connecting surface.
  • the light-curing 3D printing device of this embodiment can solve the light intensity difference between different lamp beads by using an integral light source as the light source component light source, and the relative light intensity of the entire exposure area is uniform.
  • the boundary is abruptly changed, and the ball screw is used to drive the forming platform to rise and fall, which has stable operation and high control precision, which solves the problems of high cost and poor quality of light curing.
  • FIG. 1 is a schematic diagram of the overall structure of the light-curing 3D printing device of the present invention.
  • FIG. 2 is a schematic side view of the light-curing 3D printing device of the present invention.
  • FIG. 3 is a schematic diagram of the structure of the cantilever part of the light-curing 3D printing device of the present invention.
  • FIG. 4 is a schematic diagram of the structure of the connecting seat part of the light-curing 3D printing device of the present invention.
  • FIG. 5 is a schematic structural diagram of a part of the curing plate of the light-curing 3D printing device of the present invention.
  • FIG. 6 is a schematic structural diagram of a part of the material box of the light-curing 3D printing device of the present invention.
  • FIG. 7 is a partial schematic diagram of a light source component of the light-curing 3D printing device of the present invention.
  • FIG. 8 is a schematic diagram of the structure of the integrating light source part of the light-curing 3D printing device of the present invention.
  • FIG. 9 is a partial exploded schematic diagram of the integrating light source and the heat sink of the photocuring 3D printing device of the present invention.
  • FIG. 10 is a schematic view of the side structure of the heat sink body part of the light-curing 3D printing device of the present invention.
  • FIG. 11 is a schematic structural diagram of a part of the light-shielding plate of the light-curing 3D printing device of the present invention.
  • FIG. 12 is a schematic diagram of the working principle of the light-curing 3D printing device of the present invention.
  • first and second are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature defined as “first” or “second” may expressly or implicitly include one or more of that feature.
  • “plurality” means two or more, unless otherwise expressly and specifically defined.
  • connection In the present utility model, unless otherwise expressly specified and limited, the terms “installation”, “connection”, “connection”, “fixation” and other terms should be understood in a broad sense, for example, it may be a connection or a detachable connection , or integrated; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of the two elements or the interaction relationship between the two elements.
  • connection can be a mechanical connection or an electrical connection
  • it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of the two elements or the interaction relationship between the two elements.
  • specific meanings of the above terms in the present invention can be understood according to specific situations.
  • a first feature "on” or “under” a second feature may include the first and second features in direct contact, or may include the first and second features The features are not in direct contact but through additional features between them.
  • the first feature being “above”, “over” and “above” the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is level higher than the second feature.
  • the first feature is “below”, “below” and “below” the second feature includes the first feature is directly below and diagonally below the second feature, or simply means that the first feature has a lower level than the second feature.
  • this embodiment provides a light-curing 3D printing device, which includes: a base 1 , a support arm 2 , a curing processing table 5 , a light source assembly 6 , a forming platform 4 and a lifting assembly 3 ;
  • the support arm 2 is vertically connected to the base 1, the curing table 5 is connected to the middle of the support arm 2, the curing table 5 is used to place the LCD to be processed and the material box 7, the lifting assembly 3 is connected to the support arm 2, and the forming platform 4 is connected to the lifting assembly 2; when performing light curing molding, the lifting assembly 3 drives the forming platform 4 to descend to the curing processing platform 5 , the light source assembly 6 emits light and sequentially penetrates the curing processing table 5, a display screen 8 arranged on the curing processing table 5, the display screen 8 is an LCD display screen, and the display screen is The image shown on 8 is projected onto the chute.
  • the light source assembly 6 includes: an integrating light source 62 , a reflecting mirror 63 and a collimating lens 64 , the light emitted by the integrating light source 62 is reflected by the reflecting mirror 63 to the collimating lens 64 .
  • the collimating lens 64 is used for collimating the reflected light, and the collimated light is applied to the LCD light curing.
  • the integrating light source 62 includes: a circuit board 621 and lamp beads 622 distributed and connected to the circuit board 621 in a matrix.
  • the lamp beads 622 are ultraviolet lamp beads.
  • the matrix-distributed lamp bead array is packaged in a small-angle multi-core array to ensure uniform illumination in the molding area of a single lamp bead, and then multiple lamp bead arrays are used to ensure the light source intensity of the molding area.
  • the circuit board 621 is further provided with a plurality of first connection holes 6211 .
  • a coating layer is provided on the reflection surface of the reflection mirror 63 .
  • the collimating lens 64 is a Fresnel lens.
  • the photo-curing 3D printing device further includes a heat sink 61 , and the integrating light source 62 is connected to the heat sink 61 .
  • the heat sink 61 includes: a heat sink body 611 , the heat sink body 611 has a connecting surface 6112 for connecting the integrating light source 62 , and a light blocking eaves 6111 are arranged above the connecting surface 6112 .
  • the design of the light blocking eaves 6111 above the heat sink body 611 can effectively block the influence of the excess light sources from the side of the light source on the printing process.
  • the cooling fin body 611 is also provided with an air cooling or water cooling channel 6113 .
  • the heat sink adopts water cooling or forced air cooling to reduce the heat of the lamp bead array to ensure the life of the lamp bead array.
  • the light-curing 3D printing device of this embodiment further includes a light shielding plate 65 .
  • the light shielding plate 65 is provided with a plurality of through holes 651 corresponding to the lamp beads 622 , and the light shielding plate 65 is connected to on the circuit board 621 .
  • the shading plate 65 ensures that the light rays emitted by each lamp bead 622 are angularly consistent, and the shading plate 65 shields some excess light from the mutual influence between the lamp beads 622 and solves the problem of mutual interference of the lamp beads.
  • the light-shielding plate 65 is further provided with a second connection hole 652 corresponding to the first connection hole 6211 , and the light-shielding plate 65 is blocked by screws passing through the first connection hole 6211 and the second connection hole 652 .
  • the board 65 is connected to the circuit board 621 .
  • the reflecting mirror 63 is connected to the base 1, and the connecting angle of the reflecting mirror 63 can reflect the ultraviolet light emitted by the integrating light source 62 to the Fresnel lens at the maximum amount, so
  • the integrating light source 62 is connected to the curing table 5
  • the collimating lens 64 is connected to the lower table surface of the curing table 5 .
  • the curing table 5 is further provided with a slot 51 for placing the LCD, and the collimating lens 64 is located below the slot 51 .
  • the cartridge 7 is located on the upper surface of the LCD.
  • the forming platform 4 includes: a cantilever 41 , a connecting seat 42 and a curing plate 43 , the cantilever 41 is connected to the lifting assembly 3 , the connecting seat 42 is connected to the cantilever 41 , and the curing plate 43 is connected on the connecting seat 42 .
  • the cantilever 41 includes a rear side plate 411 , a pair of left side plates 412 and right side plates 413 vertically extending from the rear side plate 411 , and a pair of left side plates 412 and right side plates 413 connected to The front side panel 414 between the left side panel 412 and the right side panel 413, wherein the upper edge of the front side panel 414 and the front end upper edges of the left side panel 412 and the right side panel 413 together form a connection platform 415.
  • the connecting base 42 includes a top plate 422 , a bottom plate 423 and a vertical plate 421 connected between the top plate 422 and the bottom plate 423 .
  • the top plate 422 is connected to the connecting table 415 , and the connecting seat 42 and the cantilever 41 are connected by a screw 44 . By adjusting the screw 44 , the horizontal relative position of the connecting seat 42 relative to the cantilever 41 can be changed.
  • the curing plate 43 includes a plate body portion 431, a left plate portion 432 and a right plate portion 433 connected to the upper plate surface of the plate body portion 431, and two plates are respectively provided on the left plate portion 432 and the right plate portion 433.
  • the waist-shaped hole 4321, the left plate part 432 and the right plate part 433 are connected to the bottom 423 of the connecting seat 42, and the two are connected by screws, and the horizontal adjustment of the plate body part 431 is realized through the cooperation of the waist-shaped hole 4321 and the screw .
  • the board body 431 is controlled by the lift assembly 3 to descend and penetrate into the photosensitive resin in the cartridge.
  • the lift assembly 3 includes: a guide rail 32 connected to the support arm 2 , a slider 33 slidably connected to the guide rail 32 and a drive mechanism 31 connected to the support arm 2 , the cantilever 41 is connected to the sliding block 33 and the lifting end of the driving mechanism 31 .
  • the driving mechanism 31 is a ball screw, which has the advantages of stable operation and high progress.
  • the number of the guide rails 32 is two, and they are located on both sides of the ball screw, which further improves the running stability of the lifting assembly 3 .
  • the support arm 2 is made of aluminum or aluminum alloy profiles.
  • the light-curing 3D printing device of this embodiment can solve the light intensity difference between different lamp beads very well by using an integral light source; each lamp bead can optically cover the entire exposure area, The damage of individual lamp beads does not affect the work of the whole machine.
  • the relative light intensity of the entire exposure area is uniform and there is no sudden change.
  • the ball screw is used to drive the forming platform to rise and fall, and its operation is stable and the control accuracy is solved.
  • the LCD screen has high cost and poor quality. The problem.

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Abstract

提供了一种光固化3D打印装置，包括：底座（1）、支撑臂（2）、固化加工台（5）、光源组件（6）、成型平台（4）及升降组件（3）；当进行光固化成型时，升降组件（3）带动成型平台（4）下降至固化加工台（5）处，光源组件（6）将光线发射并依次穿透固化加工台（5）、设置于固化加工台（5）上的显示屏（8），将显示屏（8）上显示的图像投影到料盒（7）上。通过采用积分式光源作为光源组件光源，可以解决不同灯珠间的光强差异，整个曝光区域相对光强均匀没有突变边界，成型精度高。

Description

一种光固化3D打印装置 技术领域
本实用新型涉及3D打印技术领域，尤其涉及一种光固化3D打印装置。
背景技术
随着黑白LCD屏幕的出现，透光率的增加其使用寿命的不断延长，在光固化领域LCD在分辨率、打印精度、成型面积以及价格上都明显的优势，但是随着LCD成型面积的增加其对紫外光源的功率、均匀度、准直度提出了更高的要求。目前大多数厂家采用分布式区域曝光拼接技术，就是由许多紫外灯珠整列均匀排布，其缺点：灯珠之间拼接区域光强极不均匀；任何灯珠损坏都会造成一片区域完全无法正常使用；灯珠与灯珠的差异造成不同区域之间的光学差异明显有突变边界。
实用新型内容
本实用新型的目的在于克服现有技术的不足，提供一种光固化3D打印装置，以解决现有光源不均匀导致LCD光固化质量差的技术问题。
为实现上述目的，本实用新型采用以下技术方案：
本实用新型的实施例提供了一种光固化3D打印装置，包括：底座、支撑臂、固化加工台、光源组件、成型平台、升降组件及料盒；所述支撑臂连接于所述底座，所述固化加工台连接于所述支撑臂的中部，所述升降组件连接于所述支撑臂，且所述成型平台连接于所述升降组件，所述料盒设于所述固化加工台上；当进行光固化成型时，所述升降组件带动所述成型平台下降至所述固化加工平 台处，所述光源组件将光线发射并依次穿透所述固化加工台、设置于所述固化加工台上的一显示屏，将所述显示屏上显示的图像投影到料槽上。
其中，所述光源组件包括：积分式光源、反射镜和准直透镜，所述积分光源发射的光经所述反射镜反射至所述准直透镜上，所述准直透镜用于对反射而来的光进行准直处理。
其中，所述积分式光源包括：电路板及矩阵式分布连接于所述电路板上的紫外光灯珠。
其中，所述反射镜的反射面上设有镀膜层。
其中，所述准直透镜为菲涅尔透镜。
其中，所述反射镜连接于所述底座，所述积分式光源连接于所述固化工作台，所述准直透镜连接于所述固化工作台的下台面。
其中，所述成型平台包括：悬臂、连接座和固化板，所述悬臂连接于所述升降组件，所述连接座连接于所述悬臂，所述固化板连接于所述连接座。
其中，所述升降组件包括：连接于所述支撑臂上的导轨，滑动连接于所述导轨上的滑块以及连接于所述支撑臂上的驱动机构，所述悬臂连接于所述滑块和所述驱动机构的升降端。
其中，所述驱动机构为滚珠丝杆。
其中，所述光源组件还包括散热片，所述积分光源连接于所述散热片上，所述散热片包括：散热片本体，所述散热片本体具有一用于连接所述积分光源的连接面，所述连接面的上方设有一挡光檐。
与现有技术相比，本实施例的光固化3D打印装置，其通过采用积分式光源作为光源组件光源，可以很好的解决不同灯珠间的光强差异，整个曝光区域相对光强均匀没有突变边界，同时采用滚珠丝杆带动成型平台升降，其运行稳定，控制精度高，解决了光固化 成本高，质量差的问题。
上述说明仅是本实用新型技术方案的概述，为了能够更清楚了解本实用新型技术手段，可依照说明书的内容予以实施，并且为了让本实用新型的上述和其它目的、特征及优点能够更明显易懂，以下特举较佳实施例，详细说明如下。
附图说明
图1为本实用新型的光固化3D打印装置的整体结构示意图。
图2为本实用新型的光固化3D打印装置的侧面结构示意图。
图3为本实用新型的光固化3D打印装置的悬臂部分结构示意图。
图4为本实用新型的光固化3D打印装置的连接座部分结构示意图。
图5为本实用新型的光固化3D打印装置的固化板部分结构示意图。
图6为本实用新型的光固化3D打印装置的料盒部分结构示意图。
图7为本实用新型的光固化3D打印装置的光源组件部分原理图。
图8为本实用新型的光固化3D打印装置的积分光源部分结构示意图。
图9为本实用新型的光固化3D打印装置的积分光源与散热片部分分解示意图。
图10为本实用新型的光固化3D打印装置散热片本体部分侧面结构示意图。
图11为本实用新型的光固化3D打印装置的遮光板部分结构示意图。
图12为本实用新型的光固化3D打印装置的工作原理示意图。
具体实施方式
为了使本实用新型的目的、技术方案及优点更加清楚明白，下面结合附图和具体实施方式对本实用新型作进一步详细说明。
下面将结合本实用新型实施例中的附图，对本实用新型实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本实用新型一部分实施例，而不是全部的实施例。基于本实用新型中的实施例，本领域技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本实用新型保护的范围。
在本实用新型的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”“内”、“外”、“顺时针”、“逆时针”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本实用新型和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本实用新型的限制。
此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本实用新型的描述中，“多个”的含义是两个或两个以上，除非另有明确具体的限定。
在本实用新型中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解，例如，可以是连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技 术人员而言，可以根据具体情况理解上述术语在本实用新型中的具体含义。
在本实用新型中，除非另有明确的规定和限定，第一特征在第二特征之“上”或之“下”可以包括第一和第二特征直接接触，也可以包括第一和第二特征不是直接接触而是通过它们之间的另外的特征接触。而且，第一特征在第二特征“之上”、“上方”和“上面”包括第一特征在第二特征正上方和斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”包括第一特征在第二特征正下方和斜下方，或仅仅表示第一特征水平高度小于第二特征。
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本实用新型的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不应理解为必须针对的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任何的一个或多个实施例或示例中以合适的方式结合。此外，本领域的技术人员可以将本说明书中描述的不同实施例或示例进行结合和组合。
请参阅图1至图12，本实施例提供了一种光固化3D打印装置，其包括：底座1、支撑臂2、固化加工台5、光源组件6、成型平台4及升降组件3；所述支撑臂2竖直连接于所述底座1，所述固化加工台5连接于所述支撑臂2的中部，所述固化工作台5用于放置待加工的LCD以及料盒7，所述升降组件3连接于所述支撑臂2，且所述成型平台4连接于所述升降组件2；当进行光固化成型时，所述升降组件3带动所述成型平台4下降至所述固化加工平台5处，所述光源组件6将光线发射并依次穿透所述固化加工台5、设置于所述固化加工台5上的一显示屏8，所述显示屏8为LCD显 示屏，将所述显示屏8上显示的图像投影到料槽上。
请再次参阅图7至图11，所述光源组件6其包括：积分式光源62、反射镜63和准直透镜64，所述积分光源62发射的光经所述反射镜63反射至所述准直透镜64上，所述准直透镜64用于对反射而来的光进行准直处理，准直后的光应用于LCD光固化。
请再次参阅图8，所述积分式光源62包括：电路板621及矩阵式分布连接于所述电路板621上的灯珠622。本实施例中，所述灯珠622为紫外光灯珠。所述矩阵式分布的灯珠阵列单颗采用小角度多芯阵列封装，保证单颗灯珠成型面积照度均匀，再采用多颗灯珠阵列保证成型面积光源强度。其中，所述电路板621上还设有若干第一连接孔6211。
为了提高反射效果，所述反射镜63的反射面上设有镀膜层。
本实施例中，所述准直透镜64为菲涅尔透镜。
请再次参阅图9和图10，该光固化3D打印装置还包括散热片61，所述积分光源62连接于所述散热片61上。
具体的，所述散热片61包括：散热片本体611，所述散热片本体611具有一用于连接所述积分光源62的连接面6112，所述连接面6112的上方设有一挡光檐6111。散热片本体611上方挡光檐6111设计，可以有效阻挡光源侧向多余光源对打印过程中的影响。
其中，所述散热片本体611上还设有风冷或水冷通道6113。所述散热片采用水冷或者强制风冷降低灯珠阵列热量保证灯珠阵列寿命。
请再次参阅图11，该实施例的光固化3D打印装置还包括一遮光板65，所述遮光板65上设有若干与所述灯珠622对应的通孔651，所述遮光板65连接于所述电路板621上。所述遮光板65保证每颗灯珠622发出光线在角度一致性，遮光板65屏蔽了灯珠622之间的互相影响的一些多余光线，解决了灯珠相互干扰问题。
其中，所述遮光板65上还设有与所述第一连接孔6211对应的第二连接孔652，通过穿设于所述第一连接孔6211和第二连接孔652的螺钉将所述遮光板65连接于所述电路板621上。
请再次参阅图1和图2，所述反射镜63连接于所述底座1，该反射镜63的连接角度以可将积分式光源62发射的出紫外光最大量反射至菲尼尔透镜，所述积分式光源62连接于所述固化工作台5，所述准直透镜64连接于所述固化工作台5的下台面。具体的，该固化工作台5上还设有一用于放置LCD的开槽51，所述准直透镜64位于所述开槽51的下方。而料盒7位于LCD的上表面。
其中，所述成型平台4包括：悬臂41、连接座42和固化板43，所述悬臂41连接于所述升降组件3，所述连接座42连接于所述悬臂41，所述固化板43连接于所述连接座42。
具体的，请再次参阅图3至图5，所述悬臂41包括后侧板411，由所述后侧板411上垂直延伸而出的一对左侧板412和右侧板413，以及连接于左侧板412和右侧板413之间的前侧板414，其中，前侧板414的上边缘与左侧板412和右侧板413的前端上边缘共同形成一连接台415。所述连接座42包括顶板422、底板423以及连接于所述顶板422和底板423之间的竖板421。所述顶板422连接于所述连接台415处，且连接座42与悬臂41之间通过螺杆44连接，通过调节螺杆44，可以改变连接座42相对于悬臂41的水平相对位置。
所述固化板43包括：板体部431，连接于所述板体部431上板面上的左板部432和右板部433，左板部432和右板部433上均各设有两腰型孔4321，所述左板部432和右板部433连接于所述连接座42的底部423上，二者螺钉连接，通过腰型孔4321与螺钉的配合实现板体部431的水平调节。固化LCD时，该板体部431受控于升降组件3下降并深入料盒内的光敏树脂。
如图1所示，所述升降组件3包括：连接于所述支撑臂2上的导轨32，滑动连接于所述导轨32上的滑块33以及连接于所述支撑臂2上的驱动机构31，所述悬臂41连接于所述滑块33和所述驱动机构31的升降端。
在本实施例中，所述驱动机构31为滚珠丝杆，其具有运行稳定，进度高的优点。所述导轨32的数量为二，分别位于滚珠丝杆的两侧，进一步提高了升降组件3运行的稳定性。
其中，为了节约加工成本，所述支撑臂2采用铝或铝合金型材。
与现有技术相比，本实施例的光固化3D打印装置，其通过采用积分式光源，可以很好的解决不同灯珠间的光强差异；每个灯珠都能光学覆盖整个曝光区域，个别灯珠损坏不影响整机工作，整个曝光区域相对光强均匀没有突变边界，同时采用滚珠丝杆带动成型平台升降，其运行稳定，控制精度，解决了LCD屏幕的光固化成本高，质量差的问题。
上述仅以实施例来进一步说明本实用新型的技术内容，以便于读者更容易理解，但不代表本实用新型的实施方式仅限于此，任何依本实用新型所做的技术延伸或再创造，均受本实用新型的保护。本实用新型的保护范围以权利要求书为准。

Claims (10)

  1. 一种光固化3D打印装置，其特征在于，包括：底座、支撑臂、固化加工台、光源组件、成型平台、升降组件及料盒；所述支撑臂连接于所述底座，所述固化加工台连接于所述支撑臂的中部，所述升降组件连接于所述支撑臂，且所述成型平台连接于所述升降组件，所述料盒设于所述固化加工台上；当进行光固化成型时，所述升降组件带动所述成型平台下降至所述固化加工平台处，所述光源组件将光线发射并依次穿透所述固化加工台、设置于所述固化加工台上的显示屏，将显示屏上显示的图像投影到料盒上。
  2. 根据权利要求1所述的光固化3D打印装置，其特征在于，所述光源组件包括：积分式光源、反射镜和准直透镜，所述积分光源发射的光经所述反射镜反射至所述准直透镜上，所述准直透镜用于对反射而来的光进行准直处理。
  3. 根据权利要求2所述的光固化3D打印装置，其特征在于，所述积分式光源包括：电路板及矩阵式分布连接于所述电路板上的紫外光灯珠。
  4. 根据权利要求2所述的光固化3D打印装置，其特征在于，所述反射镜的反射面上设有镀膜层。
  5. 根据权利要求2所述的光固化3D打印装置，其特征在于，所述准直透镜为菲涅尔透镜。
  6. 根据权利要求2所述的光固化3D打印装置，其特征在于，所述反射镜连接于所述底座，所述积分式光源连接于所述固化工作台，所述准直透镜连接于所述固化工作台的下台面。
  7. 根据权利要求1所述的光固化3D打印装置，其特征在于，所述成型平台包括：悬臂、连接座和固化板，所述悬臂连接于所述升降组件，所述连接座连接于所述悬臂，所述固化板连接于所述连接座。
  8. 根据权利要求7所述的光固化3D打印装置，其特征在于，所述升降组件包括：连接于所述支撑臂上的导轨，滑动连接于所述导轨上的滑块以及连接于所述支撑臂上的驱动机构，所述悬臂连接于所述滑块和所述驱动机构的升降端。
  9. 根据权利要求8所述的光固化3D打印装置，其特征在于，所述驱动机构为滚珠丝杆。
  10. 根据权利要求2所述的光固化3D打印装置，其特征在于，所述光源组件还包括散热片，所述积分光源连接于所述散热片上，所述散热片包括：散热片本体，所述散热片本体具有一用于连接所述积分光源的连接面，所述连接面的上方设有一挡光檐。
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