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CN105563827A - 3d打印机防卷曲打印方法 - Google Patents

3d打印机防卷曲打印方法 Download PDF

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CN105563827A
CN105563827A CN201510747269.0A CN201510747269A CN105563827A CN 105563827 A CN105563827 A CN 105563827A CN 201510747269 A CN201510747269 A CN 201510747269A CN 105563827 A CN105563827 A CN 105563827A
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CN105563827B (zh
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仲炳华
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Foshan Xiang De Industrial Design Co Ltd
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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
    • 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
    • B33Y50/00Data acquisition or data processing for additive manufacturing
    • B33Y50/02Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes

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

本发明提供一种3D打印机防卷曲打印方法,包括如下步骤:将工作台升温到120℃~150℃;在工作台上打印基座主体,所述基座主体由往复折叠的树脂线条构成;在所述基座主体的外周打印一个高度与基座主体相等的封闭圈;在所述基座主体与封闭圈上方打印一层过渡层,所述过渡层与封闭圈、工作台形成一个密闭空间,将所述基座主体封闭在内部;降低工作台的温度至60℃~80℃;然后在所述过渡层上方打印模型实体。该方法可以轻松解决模型底部卷曲的问题,提高打印成功率。

Description

3D打印机防卷曲打印方法
技术领域
本发明涉及3D打印机领域,特别地,是一种3D打印机的打印方法。
背景技术
目前,3D打印机的发展较快,而最常见的仍是热熔式3D打印机,其基本打印原理是在工作台上从下至上逐层打印模型的各层截面;而在开始模型实体之前,需要先在工作台上打印一个基座面,该基座面的形状通常如图1所示,由往复线条构成;完成基座面后,即可在基座面上方打印模型实体。而在3D打印机的打印过程中,为了使基座面与工作台之间具有足够的粘附力,避免模型移动,工作台总是保持较高的温度,一般为110℃左右;然而在实际打印过程中,由于模型底部的外轮廓的散热明显优于内部的散热,因此,模型底部的外轮廓容易干结;在打印机喷头对模型上部的边缘连续施加剪力和压力时,就容易使与喷头不同侧的模型底部向上翘起,即形成底部卷曲效应,并最终导致模型被横向拖动,从而使打印无法继续;目前解决该问题的方法是,在工作台表面黏贴胶布,以增强基座面与工作台的摩擦力,这显然费时费力,非常麻烦。
发明内容
针对上述问题,本发明的目的在于提供一种3D打印机防卷曲打印方法,该方法可以轻松解决模型底部卷曲的问题,提高打印成功率。
本发明实现技术目的所采用的技术方案是:该3D打印机防卷曲打印方法包括如下步骤:将工作台升温到120℃~150℃;在工作台上打印基座主体,所述基座主体由往复折叠的树脂线条构成;在所述基座主体的外周打印一个高度与基座主体相等的封闭圈;在所述基座主体与封闭圈上方打印一层过渡层,所述过渡层与封闭圈、工作台形成一个密闭空间,将所述基座主体封闭在内部;降低工作台的温度至60℃~80℃;然后在所述过渡层上方打印模型实体。
作为优选,在打印所述基座主体及封闭圈时,打印喷头的温度为200℃~220℃;而在打印所述过渡层时,打印喷头的温度降低15%~25%;而在打印模型实体时,打印喷头的温度又恢复到200℃~220℃;从而使所述过渡层的成型强度与模型实体的成型强度形成明显差异,从而在过渡层处形成应力薄弱区,使之易于与模型实体分离。
本发明的有益效果在于:该3D打印机防卷曲打印方法在工作时,由于在工作台相对高温的条件下打印了所述封闭圈和过渡层,形成了所述密闭空间,在工作台温度降低后,密闭空间内的空气温度降低,从而使密闭空间内形成明显的负压,使大气压将所述过渡层牢固地压在工作台上;从而防止模型的底部向上卷曲。
附图说明
图1是3D打印机所打印的常规基座面的形状。
图2是本打印方法所打印的基座主体和封闭圈的一个实施例示意图。
具体实施方式
下面结合附图和实施例对本发明进一步说明:
本3D打印机防卷曲打印方法包括如下步骤:将工作台升温到120℃~150℃;在工作台上打印如图2所示的基座主体1,所述基座主体1由往复折叠的树脂线条构成;在所述基座主体1的外周打印一个高度与基座主体1相等的封闭圈2;在所述基座主体1与封闭圈2上方打印一层过渡层(未图示),所述过渡层与封闭圈2、工作台形成一个密闭空间,将所述基座主体1封闭在内部;降低工作台的温度至60℃~80℃;然后在所述过渡层上方打印模型实体。
采用上述的打印方法时,由于在工作台相对高温的条件下打印了所述封闭圈和过渡层,形成了所述密闭空间,在工作台温度降低后,密闭空间内的空气温度降低,从而使密闭空间内形成明显的负压,使大气压将所述过渡层牢固地压在工作台上;从而防止模型的底部向上卷曲。
另外,可以在打印所述基座主体1及封闭圈2时,打印喷头的温度控制在200℃~220℃;而在打印所述过渡层时,打印喷头的温度降低15%~25%;而在打印模型实体时,打印喷头的温度又恢复到200℃~220℃;从而使所述过渡层的成型强度与模型实体的成型强度形成明显差异,从而在过渡层处形成应力薄弱区,使之易于与模型实体分离。
以上所述仅为本发明的较佳实施例,并不用以限制本发明,凡在本发明的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。

Claims (2)

1.一种3D打印机防卷曲打印方法,其特征在于:包括如下步骤:将工作台升温到120℃~150℃;在工作台上打印基座主体(1),所述基座主体(1)由往复折叠的树脂线条构成;在所述基座主体(1)的外周打印一个高度与基座主体相等的封闭圈(2);在所述基座主体(1)与封闭圈(2)上方打印一层过渡层,所述过渡层与封闭圈、工作台形成一个密闭空间,将所述基座主体(1)封闭在内部;降低工作台的温度至60℃~80℃;然后在所述过渡层上方打印模型实体。
2.根据权利要求1所述的3D打印机防卷曲打印方法,其特征在于:在打印所述基座主体(1)及封闭圈(2)时,打印喷头的温度为200℃~220℃;而在打印所述过渡层时,打印喷头的温度降低15%~25%;而在打印模型实体时,打印喷头的温度又恢复到200℃~220℃;从而使所述过渡层的成型强度与模型实体的成型强度形成明显差异。
CN201510747269.0A 2015-11-06 2015-11-06 3d打印机防卷曲打印方法 Expired - Fee Related CN105563827B (zh)

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CN104190936A (zh) * 2014-09-24 2014-12-10 北京太尔时代科技有限公司 一种优化的3d打印方法
CN104827665A (zh) * 2015-04-17 2015-08-12 珠海天威飞马打印耗材有限公司 三维打印机、应用在三维打印机上的打印工作平台、涂料、膜层及制备方法

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