WO2016173068A1 - 三维打印设备 - Google Patents

三维打印设备 Download PDF

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Publication number
WO2016173068A1
WO2016173068A1 PCT/CN2015/080192 CN2015080192W WO2016173068A1 WO 2016173068 A1 WO2016173068 A1 WO 2016173068A1 CN 2015080192 W CN2015080192 W CN 2015080192W WO 2016173068 A1 WO2016173068 A1 WO 2016173068A1
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Prior art keywords
shaped
printing
platform
support
supporting
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PCT/CN2015/080192
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English (en)
French (fr)
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金葆青
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金葆青
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Publication of WO2016173068A1 publication Critical patent/WO2016173068A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/115—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by spraying molten metal, i.e. spray sintering, spray casting
    • 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
    • B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
    • 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 present application relates to the field of three-dimensional printing technologies, and in particular, to a three-dimensional printing device.
  • a 3D printer also known as a 3D printer, is a machine that uses rapid prototyping technology to create three-dimensional objects by printing a layer of adhesive material using a special wax, powdered metal or plastic bondable material.
  • the existing three-dimensional printers especially the desktop-level three-dimensional printers, vibrate significantly during the work process, resulting in rough printed three-dimensional entities and improved quality.
  • a 3D printer extrudes consumables through a printhead onto a printing platform. The printheads need to be positioned above the print platform.
  • the spacing between the nozzles and the print platform is uniform through the leveling process before printing begins.
  • Leveling is a key step in the pre-printing process. Uneven spacing between the nozzle and the printing platform may cause problems such as curling of the printed 3D product and affect print quality.
  • a three-dimensional printing apparatus including: a transmission mechanism, a printing mechanism, and a support mechanism, the printing mechanism including at least one print head, the support mechanism being located below the at least one print head, a material for carrying the output of the at least one print head, the support mechanism includes a support platform, and the transmission mechanism is configured to drive the print heads to be flat And moving in a direction perpendicular to the support platform, the support mechanism further comprising:
  • a printing plate detachably mounted on the support platform by at least three fixing members detachably mounted on an upper surface of the support platform, the at least three fixing members respectively passing at least three
  • the elastic member supports the printing plate upward in parallel with the support platform.
  • the plane of the printing nozzle is parallel to the supporting platform, and when the printing plate is inserted into the fixing member, the flat plate is not required to be manually leveled, and the printing plate is subjected to the upward force caused by the elastic member due to the elastic force. And the support platform is naturally parallel, thereby completing the leveling process, so that the spacing between the print head and the printing plate is uniform, and the problem that the printed three-dimensional product is warped is not caused, the print quality is high, and the structure is simple.
  • FIG. 1 is a perspective view of a three-dimensional printing apparatus in accordance with an embodiment of the present invention.
  • Figure 2 is a perspective view of the transmission mechanism of the three-dimensional printing apparatus shown in Figure 1;
  • FIG. 3 is a schematic view showing the support member of the three-dimensional printing apparatus shown in FIG. 1 supporting the printing plate;
  • FIG. 4 is a schematic structural view of a possible fixing member in a three-dimensional printing apparatus according to an embodiment of the present application
  • FIG. 5 is a schematic structural view of a possible fixing member in a three-dimensional printing apparatus according to an embodiment of the present application.
  • Fig. 6 is a schematic view showing the support of the printing plate using the fixing member shown in Fig. 5.
  • FIG. 1 is a perspective view of a three-dimensional printing apparatus in accordance with an embodiment of the present application.
  • a three-dimensional printing apparatus includes: a housing 10, a transmission mechanism, a consumable mounting box, a printing mechanism, a supporting mechanism, a driving mechanism, and the like, except for the components which will be described in detail below.
  • the printing mechanism comprises at least one printing head 21, which is shown in FIG. 1 as two printing heads in the embodiment, but is not limited thereto, the two printing heads 21 are mounted on the same heating block, and The two nozzles are in the same horizontal plane parallel to the printing platform 41.
  • the support mechanism is located below the at least one print head 21 for carrying the material output by the at least one print head 21 during printing, and the support mechanism includes a support Supporting the platform 41, the transmission mechanism is configured to drive the printing head 21 to move in the parallel direction (x, y-axis direction in FIG. 1) and vertical (z-axis direction in FIG. 1) in the direction of the support platform 41, respectively. .
  • the support mechanism further includes: a printing plate 42 detachably mounted on the support platform 41 by at least three fixing members 43 detachably mounted on an upper surface of the support platform 41,
  • the at least three fixing members 43 support the printing plate 42 upwardly in parallel with the support platform 41 by at least three elastic members 431, respectively.
  • the transmission mechanism includes at least one first sliding bar (z-axis direction) 11, at least one second sliding bar (y-axis direction) 12, and at least one third sliding bar (x-axis direction) 13.
  • at least one first sliding bar 11 is fixedly mounted on a first plane perpendicular to the supporting platform 41, which is shown as a rear side wall of the outer casing 10, and the supporting platform 41 is along the at least one
  • a slide bar 11 is slidably mounted on the at least one first slide bar 11, that is, movable along the z-axis.
  • the at least one second sliding bar 12 is perpendicular to the at least one first sliding bar 11 and is fixedly mounted on at least one second plane perpendicular to the first plane and the supporting platform 41, that is, as shown in FIG.
  • At least one third sliding rod 13 is slidably mounted on the at least one second sliding rod 12 along the at least one second sliding rod 12 (ie, along the y-axis), and is parallel to the supporting platform 41
  • the at least one print head 21 is slidably mounted on the at least one third slide bar 13 along the at least one third slide bar 13 (ie, along the x-axis).
  • the planes of the two print heads 21 are parallel to the support platform 41, and even if the support platform 41 slides along the z-axis and the print head 21 slides along the x and y axes, the parallel relationship is maintained.
  • the printing plate 42 is inserted into the fixing member 43, without manual leveling, the printing plate 42 is naturally parallel with the supporting platform 41 due to the upward pressing force generated by the elastic member 431 due to the elastic force, thereby completing the leveling process and making the printing head
  • the spacing between the 21 and the printing plate 42 is uniform, and does not cause problems such as curling of the printed three-dimensional product, the printing quality is high, and the structure is simple.
  • FIG. 2 is a perspective view of a transmission mechanism of the three-dimensional printing apparatus shown in FIG. 1.
  • the transmission mechanism has two second sliding bars 12 fixedly mounted to the rear wall of the outer casing 10 and the support.
  • the two side walls of the outer casing 10, each of which is perpendicular to the platform 41, can be fixed to the four inner corners of the outer casing 10 by a total of four cube blocks at both ends of the two second sliding bars 12, as shown in FIG. Thereby ensuring that the second slider 12 is parallel to the support platform 41.
  • Two ends of the two third sliding bars 13 are slidably mounted on the two second sliding bars 12 along the two second sliding bars 12, and the top ends of the two first sliding bars 11 are fixed by a rectangular block.
  • the support platform 41 On the rear wall of the outer casing 10, the support platform 41 is an L-shaped platform, and its vertical surface is slidably mounted thereon along the two first sliding bars 11, and the at least three fixing members 43 respectively pass at least three
  • the elastic member 431 supports the printing plate 42 upward in parallel with the horizontal plane of the L-shaped platform, and ensures the parallel relationship between the printing head 21 and the printing plate 42 by the above-described vertical and parallel relationship.
  • At least three identical fixing members 43 may be employed to detachably mount the printing plate 42.
  • Each of the fixing members 43 corresponds to one elastic member 431, and at least three of the elastic members 431 are also the same elastic members, and in the embodiment shown in Fig. 1, four fixing members 43 and four corresponding elastic members 431 are shown.
  • the mounting positions of the three fixing members 43 on the support platform 41 should be positions capable of uniformly carrying the weight of the printing plate 42.
  • FIG. 3 is a schematic view showing the support member of the three-dimensional printing apparatus shown in FIG. 1 supporting the printing plate.
  • each fixing member 43 includes: an inverted U-shaped fixing leg 432, and the first U-shaped side 4321 and the second U-shaped side 4322 of the inverted U-shaped fixing leg 432 are flat plates, respectively
  • the support platform 41 is parallel, and wherein the first U-shaped edge 4321 is detachably mounted on the support platform 41.
  • the elastic member 431 is mounted on the first U-shaped side 4321 between the first U-shaped side 4321 and the second U-shaped side 4322, and has elasticity elastically supported upward to the second U-shaped side 4322 .
  • the printing plate 42 is a rectangular plate.
  • the U-shaped opening faces inwardly to insert the printing plate 42 into the U-shaped opening, and is fixed by four.
  • the members 43 respectively support the four corners of the printing plate 42, and the insertion of the printing plate 42 will generate a pressure against the elastic member 431 toward the supporting platform 41, so that the elastic member 431 supports the printing plate 42 upward, and the four elastic members 431 uniformly press the printing plate 42.
  • the support is attached to the inner surface of the second U-shaped side 4322 so as to be parallel to the support platform 41.
  • FIG. 4 is a schematic structural view of one possible fixing member in a three-dimensional printing apparatus according to an embodiment of the present application.
  • the elastic member 431 of the fixing member 43 includes a connecting slider 4311 and an elastic sleeve 4314.
  • the connecting slider 4311 is further composed of a connecting rod 4312 and a stopper 4313 connecting the top end of the shaft 4312. 4313 and the connecting rod 4312 form a shape of a screw, and the connecting rod 4312 passes through the first U-shaped side 4321 to detachably mount the first U-shaped side 4321 on the supporting platform 41, and can slide along the axial direction thereof.
  • the stopper 4313 is configured to prevent the connecting rod 4312 from penetrating the first U-shaped side 4321, the elastic sleeve 4314 is sleeved on the connecting rod 4312, and the elastic sleeve 4314 is supported by the elastic material at the connecting rod 4312.
  • the stop 4313 will compress the elastomeric sleeve 4314.
  • the elastic sleeve 4314 may be a coil spring, but is not limited thereto, and other elastic materials such as rubber may also be used to form the elastic sleeve 4314.
  • the upper surface of the stop 4313 has at least one inclined surface 4311 for conveniently mounting the printing plate 42.
  • FIG. 5 is a schematic structural view of another possible fixing member in a three-dimensional printing apparatus according to an embodiment of the present application.
  • the elastic member 431 of the fixing member 43 includes an arcuate spring 431, and at least one end of the arcuate spring 4315 is fixed on the first U-shaped side, and has an upward arching support.
  • the elasticity of the second U-shaped side 4322 is such that the top end of the bow spring 4315 is curved in order to facilitate the mounting of the printing plate 42.
  • the inner surface of the second U-shaped side 4322 is thus parallel with the support platform 41.
  • the three-dimensional printing apparatus of the embodiments of the present application can realize automatic leveling without manual, ensure print quality, and has a simple structure and is easy to implement.

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

Abstract

本申请提供了一种三维打印设备，所述设备包括：传动机构、打印机构、以及支撑机构，所述打印机构包括至少一打印喷头，所述支撑机构包括支撑平台，所述支撑机构还包括：打印平板，通过至少三个固定构件可拆卸安装在所述支撑平台上，所述至少三个固定构件可拆卸安装在所述支撑平台的上表面，所述至少三个固定构件分别通过至少三个弹性构件向上将所述打印平板支撑为与所述支撑平台平行。本申请各实施例的三维打印设备，无需手动调平，打印质量较高，且结构简单。

Description

三维打印设备 技术领域
本申请涉及三维打印技术领域，尤其涉及一种三维打印设备。
背景技术
随着科学技术的发展，现代制造业得以快速的发展，一种快速成形技术——三维(Three Dimension，3D)打印(又称增材制造(Additive Manufacturing，AM))技术随之而来。三维打印机又称3D打印机，是一种使用快速成形技术的机器，运用特殊蜡材、粉末状金属或塑料等可粘合材料，通过打印一层层的粘合材料来制造三维的物体。现有的三维打印机，尤其是桌面级三维打印机在工作过程中振动明显，导致打印出的三维实体比较粗糙，质量有待提高。在三维打印中，三维打印机将耗材通过喷头挤出至一打印平台上，喷头需位于打印平台上方，在开始打印之前，通过调平过程使喷嘴与打印平台之间的间距是均匀的。调平是打印前序工作的关键步骤，喷嘴与打印平台之间不均匀的间距会可能会造成打印出的三维产品出现翘边等问题，影响打印质量。
发明内容
本发明的目的是提供一种三维打印设备。
根据本发明的一个方面，提供了一种三维打印设备，包括：传动机构、打印机构、以及支撑机构，所述打印机构包括至少一打印喷头，所述支撑机构位于所述至少一打印喷头下方，用于承载所述至少一打印喷头输出的物料，所述支撑机构包括支撑平台，所述传动机构用于带动所述打印喷头分别沿平 行以及垂直于所述支撑平台的方向运动，所述支撑机构还包括：
打印平板，通过至少三个固定构件可拆卸安装在所述支撑平台上，所述至少三个固定构件可拆卸安装在所述支撑平台的上表面，所述至少三个固定构件分别通过至少三个弹性构件向上将所述打印平板支撑为与所述支撑平台平行。
在本申请各实施例的三维打印设备中，打印喷头所在平面与支撑平台平行，将打印平板插入固定构件中时，无需手动调平，打印平板由于受到弹性构件因弹力而产生的向上的顶力而与支撑平台自然平行，从而完成调平过程，使打印喷头与打印平板之间的间距是均匀的，不会造成打印出的三维产品出现翘边等问题，打印质量较高，且结构简单。
附图说明
图1是根据本发明一种实施方式的三维打印设备的透视图；
图2是图1所示的三维打印设备的传动机构的透视图；
图3是图1所示的三维打印设备的固定构件对打印平板的支撑示意图；
图4是本申请一种实施方式的三维打印设备中一种可能的固定构件的结构示意图；
图5本申请一种实施方式的三维打印设备中一种可能的固定构件的结构示意图；
图6是使用图5所示的固定构件实现对打印平板的支撑的示意图。
其中：
10：外壳
21：打印喷头
41：支撑平台
42：打印平板
43：固定构件
431：弹性构件
432：倒U型固定脚
4321：第一U型边
4322：第二U型边
4311：倾斜面
4312：连接杆
4313：止挡
4314：弹性套
4315：弓形弹簧
11：第一滑杆
12：第二滑杆
13：第三滑杆
具体实施方式
为使本发明的目的、技术方案和优点更加清楚明了，下面结合具体实施方式并参照附图，对本发明进一步详细说明。应该理解，这些描述只是示例性的，而并非要限制本发明的范围。此外，在以下说明中，省略了对公知结构和技术的描述，以避免不必要地混淆本发明的概念。
图1为本申请一种实施例的三维打印设备的透视图。
如图1中示出的，本申请一种实施例的三维打印设备包括：外壳10、传动机构、耗材安装盒、打印机构、支撑机构、以及驱动机构等，除申请下面将详细描述的各部件外，为了避免不必要的模糊本申请的主题，未描述和/或示出其他三维打印设备所必需的部件。其中，所述打印机构包括至少一打印喷头21，图1中示出的是实施方式中示出为两个打印喷头，但不限于此，两个打印喷头21安装在同一个加热块上，且两个喷头处于同一个平行于打印平台41的水平面上。所述支撑机构位于所述至少一打印喷头21的下方，用于承载打印过程中所述至少一打印喷头21输出的物料，所述支撑机构包括支 撑平台41，所述传动机构用于带动所述打印喷头21分别沿平行(图1中的x、y轴方向)以及垂直(图1中的z轴方向)于所述支撑平台41的方向运动。
所述支撑机构还包括：打印平板42，通过至少三个固定构件43可拆卸安装在所述支撑平台41上，所述至少三个固定构件43可拆卸安装在所述支撑平台41的上表面，所述至少三个固定构件43分别通过至少三个弹性构件431向上将所述打印平板42支撑为与所述支撑平台41平行。
所述传动机构包括：至少一第一滑杆(z轴方向)11、至少一第二滑杆(y轴方向)12以及至少一第三滑杆(x轴方向)13。其中，至少一第一滑杆11固定安装在垂直于所述支撑平台41的第一平面上，图1中示出为外壳10的后侧壁，所述支撑平台41可沿所述至少一第一滑杆11滑动地安装在所述至少一第一滑杆11上，也即，可沿z轴运动。至少一第二滑杆12与所述至少一第一滑杆11垂直，固定安装在与所述第一平面和所述支撑平台41均垂直的至少一第二平面上，也即图1中示出的外壳10的两侧壁。至少一第三滑杆13一端可沿所述至少一第二滑杆12(也即，沿y轴)滑动地安装在所述至少一第二滑杆12上，且与所述支撑平台41平行，所述至少一打印喷头21可沿所述至少一第三滑杆13(也即，沿x轴)滑动地安装在所述至少一第三滑杆13上。
在本实施方式的三维打印设备中，两个打印喷头21所在平面与支撑平台41平行，即便支撑平台41沿z轴滑动、打印喷头21沿x、y轴滑动，平行关系依然保持。将打印平板42插入固定构件43中时，无需手动调平，打印平板42由于受到弹性构件431因弹力而产生的向上的顶力而与支撑平台41自然平行，从而完成调平过程，使打印喷头21与打印平板42之间的间距是均匀的，不会造成打印出的三维产品出现翘边等问题，打印质量较高，且结构简单。
图2是图1所示的三维打印设备的传动机构的透视图。
进一步结合如图2所示的，在图1所示实施方式的三维打印设备中，传动机构具有两个第二滑杆12，分别固定安装在与外壳10的后壁和所述支撑 平台41均垂直的所述外壳10的两个侧壁上，如图1所示的，可通过两个第二滑杆12两端的共四个立方体块固定在外壳10的四个内顶角上，从而保证第二滑杆12与支撑平台41的平行。两个第三滑杆13的两端分别可沿所述两个第二滑杆12滑动地安装在所述两个第二滑杆12上，两个第一滑杆11顶端通过矩形块固定在外壳10的后壁上，支撑平台41为L型平台，其竖直面可沿所述两个第一滑杆11滑动地安装在其上，所述至少三个固定构件43分别通过至少三个弹性构件431向上将所述打印平板42支撑为与L型平台的水平面平行，通过上述垂直及平行关系，保证打印喷头21与打印平板42的平行关系。
在本申请的三维打印设备中，可采用至少三个同样的固定构件43来可拆卸安装打印平板42。每个固定构件43对应一个弹性构件431，至少三个弹性构件431也为相同的弹性构件，在图1所示的实施方式中示出了四个固定构件43以及对应的四个弹性构件431。当具有三个固定构件43和三个弹性构件431时，三个固定构件43在支撑平台41上的安装位置应为能够均匀承载打印平板42的重量的位置。
图3是图1所示的三维打印设备的固定构件对打印平板的支撑示意图。
如图3所示的，每个固定构件43包括：倒U型固定脚432，所述倒U型固定脚432的第一U型边4321和第二U型边4322均为平板，分别与所述支撑平台41平行，且其中，第一U型边4321可拆卸安装在所述支撑平台41上。弹性构件431安装在所述第一U型边4321上，位于所述第一U型边4321和所述第二U型边4322之间，具有向上支撑到所述第二U型边4322的弹性。如图3所示的，打印平板42为矩形板，四个固定构件43安装在支撑平台41上时，U型开口朝向向内相对，以将打印平板42插入U型开口，并由四个固定构件43分别支撑打印平板42的四个角，打印平板42的插入将对弹性构件431产生朝向支撑平台41的压力，使得弹性构件431向上支撑打印平板42，四个弹性构件431均匀将打印平板42支撑到贴在第二U型边4322的内表面上，从而与支撑平台41平行。
图4是本申请一种实施方式的三维打印设备中一种可能的固定构件的结构示意图。
如图4所示的，该固定构件43的弹性构件431包括：连接滑块4311以及弹性套4314，其中，连接滑块4311又由连接杆4312以及连接轴4312顶端的止挡4313组成，止挡4313与连接杆4312构成螺钉的形状，连接杆4312穿过所述第一U型边4321将所述第一U型边4321可拆卸安装在所述支撑平台41上，且可沿其轴向滑动，所述止挡4313用于防止所述连接杆4312穿出所述第一U型边4321，弹性套4314穿套在所述连接杆4312上，弹性套4314由弹性材料支撑，在连接杆4312轴向朝向发展成平台41运动时，止挡4313将压缩弹性套4314。可选的，弹性套4314可为螺旋弹簧，但不限于此，其他例如橡胶等弹性材料也可用于构成弹性套4314。
可选的，止挡4313的上表面具有至少一倾斜面4311，可方便安装打印平板42。
图5是本申请一种实施方式的三维打印设备中另一种可能的固定构件的结构示意图。
如图5所示的，该固定构件43的弹性构件431所述弹性构件431包括弓形弹簧4315，弓形弹簧4315的至少一端固定在所述第一U型边上，且具有向上拱起支撑到所述第二U型边4322的弹性，为方便打印平板42的安装，弓形弹簧4315的顶端呈弧形。如图6所示的，顺着弓形弹簧4315的方向拆装打印平板42，也是十分方便的，打印平板42插入后向下压缩弓形弹簧4322，使得弓形弹簧4322向上将打印平板42支撑为贴合第二U型边4322的内表面，从而与支撑平台41平行。
综上所述，本申请各实施例的三维打印设备能够不需要手动的实现自动调平，保证打印质量，且结构简单易于实现。
应当理解的是，本发明的上述具体实施方式仅仅用于示例性说明或解释本发明的原理，而不构成对本发明的限制。因此，在不偏离本发明的精神和范围的情况下所做的任何修改、等同替换、改进等，均应包含在本发明的保 护范围之内。此外，本发明所附权利要求旨在涵盖落入所附权利要求范围和边界、或者这种范围和边界的等同形式内的全部变化和修改例。

Claims (13)

  1. 一种三维打印设备，其特征在于，包括：传动机构、打印机构、以及支撑机构，所述打印机构包括至少一打印喷头(21)，所述支撑机构位于所述至少一打印喷头(21)下方，用于承载所述至少一打印喷头(21)输出的物料，所述支撑机构包括支撑平台(41)，所述传动机构用于带动所述打印喷头(21)分别沿平行以及垂直于所述支撑平台(41)的方向运动，所述支撑机构还包括：
    打印平板(42)，通过至少三个固定构件(43)可拆卸安装在所述支撑平台(41)上，所述至少三个固定构件(43)可拆卸安装在所述支撑平台(41)的上表面，所述至少三个固定构件(43)分别通过至少三个弹性构件(431)向上将所述打印平板(42)支撑为与所述支撑平台(41)平行。
  2. 根据权利要求1所述的设备，其中，所述至少三个固定构件(43)每个包括：
    倒U型固定脚(432)，所述倒U型固定脚(432)的第一U型边(4321)和第二U型边(4322)分别与所述支撑平台(41)平行，且其中，第一U型边(4321)可拆卸安装在所述支撑平台(41)上；
    所述弹性构件(431)安装在所述第一U型边(4321)上，位于所述第一U型边(4321)和所述第二U型边(4322)之间，具有向上支撑到所述第二U型边(4322)的弹性；
    所述打印平板(42)可插入所述至少三个固定构件(43)的倒U型固定脚(432)的U型开口。
  3. 根据权利要求2所述的设备，其中，所述弹性构件(431)包括：
    连接滑块，包括连接杆(4312)及连接杆(4312)顶端的止挡(4313)，所述连接杆(4312)穿过所述第一U型边(4321)将所述第一U型边(4321)可拆卸安装在所述支撑平台(41)上，且可沿其轴向滑动，所述止挡(4313)用于防止所述连接杆(4312)穿出所述第一U型边(4321)；
    弹性套(4314)，穿套在所述连接杆(4312)上。
  4. 根据权利要求3所述的设备，其中，所述弹性套(4314)为螺旋弹簧。
  5. 根据权利要求3所述的设备，其中，所述止挡(4313)的上表面具有至少一倾斜面(4311)。
  6. 根据权利要求2所述的设备，其中，所述弹性构件(431)包括：
    弓形弹簧(4315)，至少一端固定在所述第一U型边(4321)上，且具有向上支撑到所述第二U型边(4322)的弹性。
  7. 根据权利要求6所述的设备，其特征在于，所述弓形弹簧(4315)顶端呈弧形。
  8. 根据权利要求2所述的设备，其特征在于，所述设备包括四个固定构件(43)。
  9. 根据权利要求8所述的设备，其中，所述打印平板(42)为矩形平板，所述打印平板(42)的四个角分别插入所述四个固定构件(43)的倒U型固定脚(432)的U型开口。
  10. 根据权利要求2所述的设备，其中，所述设备还包括：
    外壳(10)，所述传动机构、打印机构、以及支撑机构分别设置在所 述外壳(10)内；
    所述传动机构包括：
    至少一第一滑杆(11)，固定安装在垂直于所述支撑平台(41)的第一平面上，所述支撑平台(41)可沿所述至少一第一滑杆(11)滑动地安装在所述至少一第一滑杆(11)上；
    至少一第二滑杆(12)，与所述至少一第一滑杆(11)垂直，固定安装在与所述第一平面和所述支撑平台(41)均垂直的至少一第二平面上；
    至少一第三滑杆(13)，一端可沿所述至少一第二滑杆(12)滑动地安装在所述至少一第二滑杆(12)上，且与所述支撑平台(41)平行，所述至少一打印喷头(21)可沿所述至少一第三滑杆(13)滑动地安装在所述至少一第三滑杆(13)上。
  11. 根据权利要求10所述的设备，其中，所述传动机构包括：
    两个第二滑杆(12)，分别固定安装在与所述第一平面和所述支撑平台(41)均垂直的所述外壳(10)的两个侧壁上；
    所述至少一第三滑杆(13)的两端分别可沿所述至少一第二滑杆(12)滑动地安装在所述两个第二滑杆(12)上。
  12. 根据权利要求10所述的设备，其中，所述支撑平台(41)为L型平台，L型平台的竖直面可沿所述至少一第一滑杆(11)滑动地安装在所述至少一第一滑杆(11)上，所述至少三个固定构件(43)分别通过至少三个弹性构件(431)向上将所述打印平板(42)支撑为与L型平台的水平面平行。
  13. 根据权利要求12所述的设备，其中，所述打印机构包括两个打印喷头(21)，且所述两个打印喷头(21)底端所在平面与所述L型平台的水平面平行。
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