WO2017045541A1 - 三维打印机及其打印方法 - Google Patents

三维打印机及其打印方法 Download PDF

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Publication number
WO2017045541A1
WO2017045541A1 PCT/CN2016/098001 CN2016098001W WO2017045541A1 WO 2017045541 A1 WO2017045541 A1 WO 2017045541A1 CN 2016098001 W CN2016098001 W CN 2016098001W WO 2017045541 A1 WO2017045541 A1 WO 2017045541A1
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printing
dimensional
heat insulating
printing platform
dimensional printer
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PCT/CN2016/098001
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English (en)
French (fr)
Inventor
何永刚
苏健强
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珠海天威飞马打印耗材有限公司
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Publication of WO2017045541A1 publication Critical patent/WO2017045541A1/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
    • 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
    • B33Y10/00—Processes of additive manufacturing
    • 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 invention relates to the field of three-dimensional printing technology, and in particular, to a three-dimensional printer and a printing method thereof.
  • the present invention is based on a Chinese patent application filed on Sep. 16, 2015, the application number of which is hereby incorporated by reference.
  • 3D printing also known as 3D printing
  • 3D printing is a kind of rapid prototyping technology. It is a technology based on digital model files, using molding materials to build objects by layer-by-layer stacking.
  • three-dimensional printing has often been used to make models in the fields of mold manufacturing and industrial design, and is now being used for direct manufacturing of some products.
  • the process of 3D printing is firstly modeled by computer aided design (CAD) or computer animation modeling software, and then the 3D model is “partitioned” into a layer-by-layer section, and then the processing path is obtained according to the analysis of the section information, thereby guiding the printer to Layer printing.
  • CAD computer aided design
  • computer animation modeling software computer animation modeling software
  • FDM molding ie Fused Deposition Modeling
  • Fused deposition molding is a process of forming a three-dimensional solid model by superimposing and stacking molten materials, and generally adopts a layer-by-layer solidification molding method to make the printed resin layer by layer into a solid, thereby producing a three-dimensional modeling product.
  • Common molding materials include ABS, PLA, and the like.
  • the linear molding material is melted at a high temperature in the printing head, and a filament material of about 0.1 mm to 0.2 mm is extruded from the outlet of the printing head, and then The filamentous material is regularly arranged on the forming seat according to a procedure to realize three-dimensional molding.
  • a 3D printer can print with a variety of materials, for example, 3D printers using ABS materials, and some with ABS. Similar materials, such as nylon, are printed. In addition, when printing in 3D printers, multiple colors of materials can be used to directly print colored 3D solids.
  • the molding material is generally contained in a molding material box, and the molding material box is mounted on a cartridge mounting frame of the three-dimensional printer, and the molding material is supplied to the three-dimensional printing head through the discharge port.
  • the filament material coming out of the print head is about 200 ° C high in the print head.
  • the temperature of the filament material is reduced to match the ambient temperature.
  • the filamentary material is placed on the forming seat, the filamentous material does not adhere well to the forming seat due to the difference in temperature between the filamentous material and the temperature of the forming seat.
  • a three-dimensional printing technology in which a sealing shell surrounding a printing main body is disposed around a three-dimensional printing main body, and the sealing housing adopts a detachable structure, and an insulating layer is disposed on the sealing housing, thereby realizing a heat insulating function in the printing process.
  • this technical solution still has the drawback that the size of the sealed casing needs to be customized in advance. If the height of the sealed casing itself is smaller than the height of the object to be printed, the surrounding portion of the object to be printed is higher than the portion of the sealed casing. Since there is no heat preservation effect of the sealed casing, delamination, deformation, and the like may occur, which may affect the forming effect. If the custom sealed housing itself has a high height or is freely splicable, although the heat preservation function can be ensured, there is a problem of high cost and inconvenient splicing.
  • Another object of the present invention is to provide a three-dimensional printing method capable of improving the molding effect.
  • the present invention provides a three-dimensional printer comprising a printing platform, a print head disposed above the printing platform, a molding base fixed on the printing platform to carry a three-dimensional printing entity, and a guide rail disposed in a direction perpendicular to the printing platform.
  • a heating device is disposed under the printing platform, and a heat insulating component is disposed around the printing platform, wherein the heat insulating component is made of a retractable elastic material.
  • the heat insulating member is connected to the guide rail.
  • the heat insulating member is a double-layer inflatable device.
  • a plurality of small holes are provided on one side of the heat insulating member facing the three-dimensional printing entity.
  • the three-dimensional printer comprises a printing platform, a print head disposed above the printing platform, a molding seat fixed on the printing platform and carrying a three-dimensional printing entity, and a guide rail disposed along a direction perpendicular to the printing platform.
  • a heating device is disposed under the printing platform, and a heat insulating component is disposed around the printing platform, and the heat insulating component is made of a retractable elastic material, and the printing method includes the following steps:
  • a heating device is activated, and the heat generated by the heating device reaches a space enclosed by the printing platform and the heat insulating member;
  • the control unit controls the feeding mechanism to supply the molding material to the printing head, and controls the main printing head to spray the molten molding material layer by layer according to the three-dimensional printing data;
  • the molding material is continuously superimposed layer by layer and solidified to form the desired three-dimensional entity.
  • the heat insulating member is connected to the guide rail.
  • the heat insulating member is a double-layer inflatable device.
  • a further preferred embodiment of the printing method of the three-dimensional printer of the present invention is that a plurality of small holes are provided on one side of the heat insulating member facing the three-dimensional printing entity.
  • the three-dimensional printer provided by the invention has a heat-insulating component around the printing platform of the three-dimensional printer, and the heat-insulating component is made of a retractable elastic material, the three-dimensional printer of the structure and the printing method thereof, Effectively ensure that the printed object is maintained in a temperature range, the temperature change between the layers is not large, the printing quality is ensured, the structure of the heat insulating component is simple, and the cost is low, and the height of the heat insulating component can be adjusted at any time according to the actual situation of printing, thereby overcoming The problem of poor adaptability and high cost of the heat insulating member made of a rigid material.
  • FIG. 1 is a schematic view showing the structure of a first embodiment of a three-dimensional printer of the present invention.
  • FIG. 2 is a schematic view showing the structure of the first embodiment of the three-dimensional printer of the present invention after hiding the heat insulating member.
  • Figure 3 is a bottom plan view of a first embodiment of a three-dimensional printer of the present invention.
  • Figure 4 is a block diagram showing the structure of a second embodiment of the three-dimensional printer of the present invention.
  • FIG. 5 is a partial structural schematic view showing the connection between the thermal insulation component and the printing platform of the second embodiment of the three-dimensional printer of the present invention.
  • a guide member 105 disposed in a direction perpendicular to the printing platform 101 is provided with a heat insulating member 108 around the printing platform 101, and a heating device 109 is disposed below the printing platform 101.
  • the heat insulating member 108 is made of a stretchable elastic material, for example, a high temperature resistant polyester film (PET film), a high temperature resistant polypropylene film (PP film), or the like, and the upper end thereof is connected to the fixing frame 106 of the printing platform 101. The lower end is sleeved on the forming base 104.
  • the thermal insulation component 108 is coupled to the rail 105 such that the thermal insulation component 108 surrounds the three-dimensional printing entity 103.
  • the heating device 109 can be selected from a plurality of heating structures, preferably using a heating wire to generate heat, and the generated hot gas can form a circulating hot air flow from bottom to top, and the hot air passes through the printing platform 101 and the heat insulating member through the transmission of a fan (not shown).
  • the gap of 108 rises into the space enclosed by the printing platform 101 and the heat insulating member 108, ensuring the temperature around the three-dimensional printing entity 103 during printing.
  • the heat insulating component 208 of the three-dimensional printer 200 may be a double-layer inflatable device, and a plurality of small holes (not shown) are disposed on one side of the three-dimensional printing entity 203. .
  • the hot gas is filled into the inner space between the two layers of the heat insulating member 208, so that the inflated heat insulating member 208 slowly expands and rises toward the direction substantially perpendicular to the molded seat, and is always maintained with the three-dimensional printing entity 203. A certain interval. Under the continuous action of the fan 207, the hot air generated by the heating means below the printing platform 201 is transferred to the enclosed space of the printing platform 201 and the heat insulating member 208, and forms a loop in the space.
  • the present invention also provides a printing method for a three-dimensional printer, which uses the three-dimensional printer in the above two embodiments for printing, that is, the three-dimensional printer includes a printing platform, a print head disposed above the printing platform, and is fixed on the printing platform.
  • a molding base of the three-dimensional printing entity, a guide rail disposed along a direction perpendicular to the printing platform, a heating device disposed under the printing platform, a heat insulating component disposed around the printing platform, and the heat insulating component is made of a retractable elastic material, and the printing method thereof Includes the following steps:
  • a heating device is activated, and the heat generated by the heating device reaches a space enclosed by the printing platform and the heat insulating member;
  • the control unit controls the feeding mechanism to supply the molding material to the printing head, and controls the main printing head to spray the molten molding material layer by layer according to the three-dimensional printing data;
  • the molding material is continuously superimposed layer by layer and solidified to form the desired three-dimensional entity.
  • the heat insulating member in the three-dimensional printer can be connected to the guide rail, and the heat insulating member can be a double-layer inflatable device, and at this time, a plurality of small holes are arranged on the side of the heat insulating member facing the three-dimensional printing entity.
  • the three-dimensional printer provided by the invention has a heat-insulating component around the printing platform of the three-dimensional printer, and the heat-insulating component is made of a retractable elastic material, the three-dimensional printer of the structure and the printing method thereof, Effectively ensure that the printed object is maintained in a temperature range, the temperature change between the layers is not large, the printing quality is ensured, the structure of the heat insulating component is simple, and the cost is low, and the height of the heat insulating component can be adjusted at any time according to the actual situation of printing, thereby overcoming The problem of poor adaptability and high cost of the heat insulating member made of a rigid material.
  • the technology of the present invention is applied to a three-dimensional printer, and the three-dimensional printer and the printing method thereof can effectively ensure that the printed object is maintained within a temperature range, so that the temperature between the layers of the printed object during the printing process does not change much, which ensures
  • the printing quality, the structure of the heat insulating component is simple, the cost is low, and the height of the heat insulating component can be adjusted at any time according to the actual situation of printing, thereby overcoming the problem that the heat insulating component made of the rigid material has poor adaptability and high cost.

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

Abstract

一种三维打印机及其打印方法，三维打印机包括打印平台（101）、打印头（102）、固定在打印平台（101）上承载三维打印实体（103）的成型座（104）、沿与打印平台（101）垂直的方向设置的导轨（105）；打印平台（101）下方设有加热装置（109），四周设有保温部件（108），保温部件（108）由可伸缩的弹性材料制成。打印时先获取需打印的三维实体的立体模型，进行切片分层得到三维打印数据，然后启动加热装置（109），产生热流持续吹送至打印平台（101）与保温部件（108）围成的空间内；控制供料机构向打印头供应成型材料，并根据三维打印数据控制主打印头逐层喷射熔融后的成型材料，在热流持续吹送的情况下，成型材料持续地逐层叠加，固化后形成三维实体。

Description

三维打印机及其打印方法 技术领域
本发明涉及三维打印技术领域，特别涉及一种三维打印机及其打印方法。本发明是基于申请日为2015年9月16日，申请号为CN201510589586.4的中国发明专利申请，该申请的内容引入本文作为参考。
 背景技术
三维打印又称3D打印，属于快速成形技术的一种，它是一种以数字模型文件为基础，运用成型材料，通过逐层堆叠累积的方式来构造物体的技术。以往三维打印在模具制造、工业设计等领域经常被用于制造模型，现正逐渐用于一些产品的直接制造。三维打印的过程首先是通过计算机辅助设计(CAD)或计算机动画建模软件建模，再将建成的三维模型“分区”成逐层的截面，再根据分析截面信息得到加工路径，从而指导打印机逐层打印。
作为三维打印技术的典型代表，FDM成型(即Fused Deposition Modeling, 熔融沉积成型)是一种通过熔融材料叠加堆积而形成三维实体模型的工艺，一般采用逐层固化成型方法，使打印后的树脂一层一层地变成固体，从而产生立体造型产品。常见的成型材料包括ABS、PLA等。一般是通过往三维打印机的打印头上端输入线状的成型材料，线状的成型材料经过在打印头内的高温熔融，从打印头出口挤出约0.1毫米至0.2毫米左右的丝状材料，然后把这种丝状材料按照程序，规律地布置在成型座上，从而实现三维成型。
随着社会的进步与发展，三维打印技术快速发展并已逐渐进入社会生活的各个领域，一台三维打印机可以采用多种材料进行打印，例如，使用ABS材料的三维打印机，还可使用一些与ABS相近的材料，如尼龙等材料进行打印。此外，三维打印机进行打印时可采用多种颜色的材料直接打印出彩色的三维实体。
在使用过程中，成型材料一般会容纳在成型材料盒内，而成型材料盒安装在三维打印机的料盒安装架上，通过出料口向三维打印头提供成型材料。从打印头出来的丝状材料，在打印头内时大约是200℃左右的高温，从打印头喷出的时候，丝状材料的温度降低到与环境温度一致。丝状材料布置到成型座上时，由于丝状材料的温度与成型座的温度存在差异，使得丝状材料不能很好地附着在成型座上。打印刚开始时从打印头出来的高温熔融状态的丝状材料， 可能会存在局部温度过高，导致存在不能很好地断丝，出现拉丝的情况。在后续的打印过程中，由于存在胶丝内外温度差异的影响，三维模型不能平整地一层一层堆叠起来，容易造成最终打印出来的三维模型存在分层、变形等情况，成型效果不够稳定。
现有的一种三维打印技术是在三维打印主体的四周设置包围打印主体的密封壳体，密封壳体采用可拆卸的结构，密封壳体上设置保温层，从而实现打印过程中的保温功能。但这种技术方案仍存在缺陷，即密封壳体的尺寸需要事先定制。如果密封壳体自身的高度小于待打印物体的高度，待打印物体高出密封壳体的部分的四周由于没有密封壳体的保温作用，还是会出现分层、变形等现象，影响成型效果。如果定制的密封壳体自身的高度很高，或者是可自由拼接的，虽然可以保证其保温功能，但存在成本较高、拼接不便的问题。
 技术问题
本发明的一个目的在于提供一种能够改善成型效果的三维打印机。
本发明的另一个目的在于提供一种能够改善成型效果的三维打印方法。
 技术解决方案
为了实现上述的目的，本发明提供一种三维打印机，包括打印平台、设置在打印平台上方的打印头、固定在打印平台上承载三维打印实体的成型座、沿与打印平台垂直的方向设置的导轨，打印平台的下方设置有加热装置，打印平台四周设置有保温部件，其中，保温部件由可伸缩的弹性材料制成。
作为本发明的三维打印机的一个优选的技术方案为，保温部件与导轨连接。
作为本发明的三维打印机的另一个优选的技术方案为，保温部件是双层可充气的装置。
作为本发明的三维打印机的又一个优选的技术方案为，保温部件面向三维打印实体的一侧设置有多个小孔。
本发明提供的三维打印机的打印方法中，三维打印机包括打印平台、设置在打印平台上方的打印头、固定在打印平台上承载三维打印实体的成型座、沿与打印平台垂直的方向设置的导轨，打印平台的下方设置有加热装置，打印平台四周设置有保温部件，保温部件由可伸缩的弹性材料制成，其打印方法包括以下步骤：
在计算机内制作或扫描出需要打印的三维实体的立体模型，并对立体模型进行切片分层，得到所需的三维打印数据，并将三维打印数据提供给三维打印机的控制单元；
启动加热装置，加热装置产生的热流抵达打印平台与保温部件围成的空间内；
由控制单元控制供料机构向打印头供应成型材料，并根据三维打印数据控制主打印头向成型座逐层喷射熔融后的成型材料；
成型材料持续地逐层叠加，固化后形成所需的三维实体。
作为本发明的三维打印机的打印方法的一个优选的技术方案为，保温部件与导轨连接。
作为本发明的三维打印机的打印方法的另一个优选的技术方案为，保温部件是双层可充气的装置。
作为本发明的三维打印机的打印方法的又一个优选的技术方案为，保温部件面向三维打印实体的一侧设置有多个小孔。
 有益效果
本发明提供的三维打印机及其打印方法与现有技术相比，三维打印机的打印平台四周设置有保温部件，保温部件由可伸缩的弹性材料制成，这种结构的三维打印机及其打印方法，有效地确保打印物体维持在一个温度范围内，层与层之间温度变化不大，保证了打印质量，保温部件的结构简单，成本低廉，可以根据打印的实际情况随时调整保温部件的高度，克服了由刚性材料做成的保温部件适应性较差及成本较高的问题。
 附图说明
图1是本发明三维打印机第一实施例的结构示意图。
图2是本发明三维打印机第一实施例隐藏保温部件后的结构示意图。
图3是本发明三维打印机第一实施例的仰视图。
图4是本发明三维打印机第二实施例的结构示意图。
图5是本发明三维打印机第二实施例的保温部件与打印平台连接配合的局部结构示意图。
 本发明的实施方式
为了使本发明的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本发明进行进一步详细说明。应当理解，此处所描述的具体实施例仅用以解释本发明，并不用于限定本发明。
第一实施例：
如图1、图2、图3所示，本发明提供的三维打印机100包括打印平台101、设置在打印平台101上方的打印头102、固定在打印平台101上承载三维打印实体103的成型座104、沿与打印平台101垂直的方向设置的导轨105，打印平台101四周设置有保温部件108，打印平台101的下方设置有加热装置109。保温部件108是由可伸缩的弹性材料制成，例如可选用耐高温聚酯薄膜（PET膜）、耐高温聚丙烯薄膜（PP膜）等，其上端与打印平台101的固定框106相连接，其下端则套接在成型座104上。保温部件108与导轨105相连接，使得保温部件108环绕在三维打印实体103的四周。
加热装置109可选用多种加热结构，优选的使用电热丝产生热量，产生的热气可自下而上形成循环热气流，通过风扇（未示出）的传送，热风穿过打印平台101和保温部件108的间隙上升到打印平台101与保温部件108围成的空间内，保证了在打印过程中三维打印实体103周边的温度。
第二实施例：
如图4、图5所示，本实施例中，三维打印机200的保温部件208可以是双层可充气的装置，其面向三维打印实体203的一侧设置有多个小孔（未示出）。打印时，热的气体充入保温部件208的两个层之间的内部空间，使得充气后的保温部件208缓慢膨胀并朝着大致垂直于成型座的方向上升，且始终与三维打印实体203保持一定的间隔。在风扇207的持续作用下，打印平台201下方加热装置产生的热风传递到打印平台201与保温部件208的围成的空间，并在空间内形成循环。
本发明还提供一种三维打印机的打印方法，该方法使用了上述两个实施例中的三维打印机进行打印，即三维打印机包括打印平台、设置在打印平台上方的打印头、固定在打印平台上承载三维打印实体的成型座、沿与打印平台垂直的方向设置的导轨，打印平台的下方设置有加热装置，打印平台四周设置有保温部件，保温部件是由可伸缩的弹性材料制成，其打印方法包括以下步骤：
在计算机内制作或扫描出需要打印的三维实体的立体模型，并对立体模型进行切片分层，得到所需的三维打印数据，并将三维打印数据提供给三维打印机的控制单元；
启动加热装置，加热装置产生的热流抵达打印平台与保温部件围成的空间内；
由控制单元控制供料机构向打印头供应成型材料，并根据三维打印数据控制主打印头向成型座逐层喷射熔融后的成型材料；
成型材料持续地逐层叠加，固化后形成所需的三维实体。
在上述打印方法中，可将三维打印机内的保温部件与导轨连接，保温部件可以是双层可充气的装置，此时在保温部件面向三维打印实体的一侧设置有多个小孔。
本发明提供的三维打印机及其打印方法与现有技术相比，三维打印机的打印平台四周设置有保温部件，保温部件由可伸缩的弹性材料制成，这种结构的三维打印机及其打印方法，有效地确保打印物体维持在一个温度范围内，层与层之间温度变化不大，保证了打印质量，保温部件的结构简单，成本低廉，可以根据打印的实际情况随时调整保温部件的高度，克服了由刚性材料做成的保温部件适应性较差及成本较高的问题。
本发明并不仅限于上述实施例，根据上述实施例的提示而做出的显而易见的变动以及其他不脱离本发明的构思的改动也应该包括在本发明专利权利要求的保护范围内。
 工业实用性
本发明的技术应用在三维打印机上，且三维打印机及其打印方法能够有效地确保打印物体维持在一个温度范围内，使得打印过程中被打印物体的层与层之间温度变化不大，保证了打印质量，保温部件的结构简单，成本低廉，可以根据打印的实际情况随时调整保温部件的高度，克服了由刚性材料做成的保温部件适应性较差及成本较高的问题。

Claims (10)

  1. 三维打印机，包括打印平台、设置在所述打印平台上方的打印头、固定在所述打印平台上承载三维打印实体的成型座、沿与所述打印平台垂直的方向设置的导轨，所述打印平台的下方设置有加热装置，所述打印平台四周设置有保温部件，其特征在于：
    所述保温部件由可伸缩的弹性材料制成。
  2. 根据权利要求1所述的三维打印机，其特征在于：
    所述保温部件与所述导轨相连接。
  3. 根据权利要求1或2所述的三维打印机，其特征在于：
    所述保温部件是双层可充气的装置。
  4. 根据权利要求1或2所述的三维打印机，其特征在于：
    所述加热装置可向所述保温部件的两层之间的内部空间吹送热气体。
  5. 根据权利要求3或4所述的三维打印机，其特征在于：
    所述保温部件面向所述三维打印实体的一侧设置有多个小孔。
  6. 三维打印机的打印方法，所述三维打印机包括打印平台、设置在所述打印平台上方的打印头、固定在所述打印平台上承载三维打印实体的成型座、沿与所述打印平台垂直的方向设置的导轨，所述打印平台四周设置有保温部件，所述打印平台的下方设置有加热装置，所述打印平台四周设置有保温部件，且所述保温部件由可伸缩的弹性材料制成，所述打印方法包括以下步骤：
    获取需要打印的三维实体的立体模型，对所述立体模型进行切片分层，得到所需的三维打印数据，并将所述三维打印数据提供给所述三维打印机的控制单元；
    启动所述加热装置，所述加热装置产生的热流被持续吹送至所述打印平台与所述保温部件围成的空间内；
    控制所述供料机构向所述打印头供应所述成型材料，并根据所述三维打印数据控制所述主打印头向所述成型座逐层喷射熔融后的成型材料；
    在所述热流被持续吹送至所述打印平台与所述保温部件围成的空间内的情况下，所述成型材料持续地逐层叠加，固化后形成所需的三维实体。
  7. 根据权利要求6所述的三维打印机的打印方法，其特征在于：
    所述保温部件与所述导轨相连接。
  8. 根据权利要求6或7所述的三维打印机的打印方法，其特征在于：
    所述保温部件是双层可充气的装置。
  9. 根据权利要求8所述的三维打印机，其特征在于：
    所述加热装置可向所述保温部件的两层之间的内部空间吹送热气体。
  10. 根据权利要求8或9所述的三维打印机的打印方法，其特征在于：
    所述保温部件面向所述三维打印实体的一侧设置有多个小孔。
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