CN108859100A - 具有快拆机制的喷头结构 - Google Patents

具有快拆机制的喷头结构 Download PDF

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CN108859100A
CN108859100A CN201710322419.2A CN201710322419A CN108859100A CN 108859100 A CN108859100 A CN 108859100A CN 201710322419 A CN201710322419 A CN 201710322419A CN 108859100 A CN108859100 A CN 108859100A
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extension
heat block
connecting tube
screw thread
nozzle structure
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李洋得
黄识维
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Kinpo Electronics Inc
XYZ Printing Inc
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Kinpo Electronics Inc
XYZ Printing Inc
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Priority to CN201710322419.2A priority Critical patent/CN108859100A/zh
Priority to US15/630,671 priority patent/US10124599B1/en
Priority to JP2017123811A priority patent/JP6634405B2/ja
Priority to EP17178107.3A priority patent/EP3401095A1/en
Priority to US16/135,905 priority patent/US10406822B2/en
Publication of CN108859100A publication Critical patent/CN108859100A/zh
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    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/315—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material
    • B41J2/32—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material using thermal heads
    • B41J2/335—Structure of thermal heads
    • B41J2/33575—Processes for assembling process heads
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    • 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
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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
    • B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
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    • B41J2/32—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material using thermal heads
    • B41J2/325—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material using thermal heads by selective transfer of ink from ink carrier, e.g. from ink ribbon or sheet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/315—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material
    • B41J2/32—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material using thermal heads
    • B41J2/335—Structure of thermal heads
    • B41J2/3354—Structure of thermal heads characterised by geometry
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/315—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material
    • B41J2/32—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material using thermal heads
    • B41J2/35—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material using thermal heads providing current or voltage to the thermal head
    • B41J2/355—Control circuits for heating-element selection
    • B41J2/3551—Block driving
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J21/00—Column, tabular or like printing arrangements; Means for centralising short lines
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    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
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    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/17—Ink jet characterised by ink handling
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    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
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    • B41J2202/00—Embodiments of or processes related to ink-jet or thermal heads
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Abstract

本发明公开了一种具有快拆机制的喷头结构，此喷头结构包括一加热块、一喷头管及一连接管，喷头管穿接于加热块，喷头管一端具有一喷嘴及另一端一体延伸有裸露出加热块的一延伸管；连接管连接于延伸管。借此，喷头管一体延伸有裸露出加热块的延伸管，以强制配置在加热块附近的喷头管是无法被拆卸分离的，进而省略习知对喷嘴高温加热才能排除或更换零件的步骤，以达到本发明喷头结构具有快速拆解及方便更换维修的优点。

Description

具有快拆机制的喷头结构
技术领域
本发明是有关于一种喷头结构，且特别是有关于一种具有快拆机制的喷头结构。
背景技术
3D打印机打印模块，其主要利用喷头将打印材料熔融后堆栈在平台。其中，传统喷头大部分由喷嘴、加热块、喉管、散热片等四件零件相互组合所构成，如图1所示，是传统喷头的第一实施例，散热片a1套接在喉管a2的一端，喷嘴a3与加热块a4一体延伸成型且组接在喉管a2的另一端；如图2所示，是传统喷头的第二实施例，散热片b1套接在喉管b2的一端，喷嘴b3组接在喉管b2的另一端，加热块b4再套接于喷嘴b3。
然而，上述传统喷头进行更换或维修作业时，因主要组接处在喷嘴a3、b3与喉管a2、b2之间，且喷嘴a3、b3内部充填有冷却后凝固之打印材料，使堵塞需要排除也时常发生在喷嘴a3、b3与喉管a2、b2交接处，所以堵塞时需对喷嘴a3、b3高温加热让凝固的打印材料受热熔融，才能排除或更换喷头零件，造成喷头在组装方面较不容易拆解，同时加热拆卸对一般使用者来说也较危险。
发明内容
为了解决上述技术问题，本发明提供一种具有快拆机制的喷头结构。
本发明提供的一种具有快拆机制的喷头结构，包括：
一加热块；
一喷头管，穿接于该加热块，该喷头管一端具有一喷嘴及另一端一体延伸有裸露出该加热块的一延伸管；以及
一连接管，连接于该延伸管。
作为优选技术方案，该延伸管的外径小于该喷头管的外径及该连接管的外径。
作为优选技术方案，该加热块对应该延伸管的外周围套设，该加热块与该延伸管之间具有一间距。
作为优选技术方案，该加热块的内周缘具有一第一内螺纹，该喷头管的外周缘具有一第一外螺纹，该第一内螺纹与该第一外螺纹相互螺接。
作为优选技术方案，该喷头管与该喷嘴交接处的外周缘延伸有一凸环块，该凸环块止挡限位于该加热块。
作为优选技术方案，上述的具有快拆机制的喷头结构，还包括一散热片套体，该散热片套体套接于该连接管，该连接管的外周缘具有一第二外螺纹，该散热片套体的内周缘具有一第二内螺纹，该第二外螺纹与该第二内螺纹相互螺接，该第一外螺纹的螺旋线旋转方向与该第二外螺纹的螺旋线旋转方向相反。
作为优选技术方案，该连接管邻近于该延伸管的一端外周缘延伸有一环圈部，该环圈部止挡限位于该散热片套体。
作为优选技术方案，该连接管与该延伸管一体延伸成型。
作为优选技术方案，该连接管与该延伸管相互组接，该延伸管的外周缘具有一第三外螺纹，该连接管的内周缘具有一第三内螺纹，该第三外螺纹与该第三内螺纹相互螺接。
作为优选技术方案，喷头管为SUS303不锈钢材质所构成，使喷头管更能打印高温材料（300℃以上）及金属材料。
本发明利用喷头管一体延伸有裸露出加热块的延伸管，以强制配置在加热块附近的喷头管是无法被拆卸分离的，进而省略习知对喷嘴高温加热才能排除或更换零件的步骤，以达到本发明喷头结构具有快速拆解及方便更换维修的优点。
附图说明
图1 是习知喷头第一实施例的剖面示意图。
图2 是习知喷头第二实施例的剖面示意图。
图3 是本发明喷头结构第一实施例的立体组合图。
图4 是本发明喷头结构第一实施例的立体分解图。
图5 是本发明喷头管及连接管第一实施例的剖面示意图。
图6 是本发明喷头结构第一实施例的剖面示意图。
图7 是本发明喷头管及连接管第二实施例的剖面示意图。
图8 是本发明喷头结构第二实施例的剖面示意图。
【符号说明】
<习知>
a1、b1…散热片；
a2、b2…喉管；
a3、b3…喷嘴；
a4、b4…加热块；
<本发明>
10…喷头结构；
1…加热块；
11…第一内螺纹；
2…喷头管；
21…喷嘴；
22…延伸管；
221…第三外螺纹；
23…第一外螺纹；
24…凸环块；
3…连接管；
31…第二外螺纹；
32…环圈部；
33…第三内螺纹；
4…散热片套体；
41…第二内螺纹；
w1、w2、w3…外径；
s…间距；
100…料管。
具体实施方式
下面结合附图和具体实施例对本发明作进一步说明，以使本领域的技术人员可以更好的理解本发明并能予以实施，但所举实施例不作为对本发明的限定。
请参考图3至图6所示，本发明提供一种具有快拆机制的喷头结构的第一实施例，此喷头结构10主要包括一加热块1、一喷头管2及一连接管3。
如图6所示，喷头结构10用于一打印机（图未揭示），打印机具有一料管100，料管100用于提供打印所需的材料。
如图3至图4、图6所示，此加热块1本身能够加热，加热块1大致呈一套体造型且内周缘具有一第一内螺纹11。
如图3至图6所示，喷头管2穿接于加热块1，喷头管2一端具有一喷嘴21及另一端一体延伸有裸露出加热块1的一延伸管22，加热块1对应延伸管22的外周围套设，且延伸管22的外径w2小于喷头管2的外径w1及连接管3的外径w3，从而令加热块1与延伸管22之间具有一间距s，加热块1用于对喷头管2及喷嘴21进行热传导加热，间距s则用于延迟热量传递至延伸管22。
详细说明如下，喷头管2的外周缘具有一第一外螺纹23，喷头管2与喷嘴21交接处的外周缘延伸有一凸环块24，第一内螺纹11与第一外螺纹23相互螺接，以令喷头管2锁固在加热块1内部，且加热块1被凸环块24所止挡限位。
另外，一般市面上的喷头与上述习知的喷头，大部分为铜质喷头，一般铜质喷头打印温度大约在200℃上下，造成喷头无法打印高于300℃的材料（金属成分材料），但本实施例之喷头管2为SUS303不锈钢材质所构成，使喷头管2更能打印高温材料（300℃以上）及金属材料。
如图3至图6所示，连接管3连接于延伸管22，连接管3的外周缘具有一第二外螺纹31，且连接管3邻近于延伸管22的一端外周缘延伸有一环圈部32。其中，本实施例的连接管3与延伸管22一体延伸成型，但不以此为限制。如图3至图4、图6所示，本发明喷头结构10更包括一散热片套体4，散热片套体4套接于连接管3，散热片套体4的外周缘延伸有多个散热片（图未标示）从而帮助连接管3进行散热。
进一步说明如下，散热片套体4的内周缘具有一第二内螺纹41，第二外螺纹31与第二内螺纹41相互螺接，以令散热片套体4锁固在连接管3外部，且散热片套体4被环圈部32所止挡限位。
另外，第一外螺纹23的螺旋线旋转方向与第二外螺纹31的螺旋线旋转方向相反，所以散热片套体4与连接管3螺转松开过程，及加热块1与喷头管2螺转松开过程，彼此不会跟随螺转松开，反而因螺转方向相反而让他方螺接更加紧密。
如图3至图6所示，本发明喷头结构10的组合及使用状态，其利用喷头管2穿接于加热块1，喷头管2一端具有喷嘴21及另一端一体延伸有裸露出加热块1的延伸管22；连接管3连接于延伸管22。借此，喷头管2一体延伸有裸露出加热块1的延伸管22，以强制配置在加热块1附近的喷头管2是无法被拆卸分离的，进而省略习知对喷嘴高温加热才能排除或更换零件的步骤，以达到本发明喷头结构10具有快速拆解及方便更换维修的优点。
另外，本实施例的连接管3、延伸管22及喷嘴21一体延伸成型，当喷嘴21处堵塞无法排除时，因喷嘴21处无法被拆卸分离的，所以省略习知通过加热块1对喷头管2加热的步骤，而直接螺转拆卸加热块1与喷头管2以更换整只喷头管2，进而达到便利一般使用者自行更换及降低烫伤的危险性。
又，因热量会往较大的单位面积方向传递，所以延伸管22的外径w2小于喷头管2的外径w1及连接管3的外径w3，能使加热块1加热的热量尽量累积在喷头管2端部的喷嘴21处，使打印材料仅在喷嘴21处均匀受热熔融，并避免打印材料在延伸管22或连接管3处发生熔融而堵塞，使喷头结构10具有打印不易堵塞的特点。
请参考图7至图8所示，是本发明喷头结构10的第二实施例，第二实施例与第一实施例大致相同，但第二实施例与第一实施例不同之处在于连接管3与延伸管22非一体成型。
进一步说明如下，延伸管22一端与喷嘴21彼此一体延伸成型，延伸管22另一端的外周缘具有一第三外螺纹221，连接管3的内周缘具有一第三内螺纹33，第三外螺纹221与第三内螺纹33相互螺接，从而令连接管3与延伸管22以相互组接方式结合而非一体成型。借此，强制配置在加热块1附近的喷头管2是无法被拆卸分离的，以达到相同于第一实施例的功能及功效外，但连接管3与延伸管22能相互螺转松开，而视使用需求将喷头管2自连接管3上拆卸下来。
以上所述实施例仅是为充分说明本发明而所举的较佳的实施例，本发明的保护范围不限于此。本技术领域的技术人员在本发明基础上所作的等同替代或变换，均在本发明的保护范围之内。本发明的保护范围以权利要求书为准。

Claims (10)

1.一种具有快拆机制的喷头结构，其特征在于，包括：
一加热块；
一喷头管，穿接于该加热块，该喷头管一端具有一喷嘴及另一端一体延伸有裸露出该加热块的一延伸管；以及
一连接管，连接于该延伸管。
2.如权利要求1所述的具有快拆机制的喷头结构，其特征在于，该延伸管的外径小于该喷头管的外径及该连接管的外径。
3.如权利要求1或2所述的具有快拆机制的喷头结构，其特征在于，该加热块对应该延伸管的外周围套设，该加热块与该延伸管之间具有一间距。
4.如权利要求1所述的具有快拆机制的喷头结构，其特征在于，该加热块的内周缘具有一第一内螺纹，该喷头管的外周缘具有一第一外螺纹，该第一内螺纹与该第一外螺纹相互螺接。
5.如权利要求4所述的具有快拆机制的喷头结构，其特征在于，该喷头管与该喷嘴交接处的外周缘延伸有一凸环块，该凸环块止挡限位于该加热块。
6.如权利要求4所述的具有快拆机制的喷头结构，其特征在于，还包括一散热片套体，该散热片套体套接于该连接管，该连接管的外周缘具有一第二外螺纹，该散热片套体的内周缘具有一第二内螺纹，该第二外螺纹与该第二内螺纹相互螺接，该第一外螺纹的螺旋线旋转方向与该第二外螺纹的螺旋线旋转方向相反。
7.如权利要求6所述的具有快拆机制的喷头结构，其特征在于，该连接管邻近于该延伸管的一端外周缘延伸有一环圈部，该环圈部止挡限位于该散热片套体。
8.如权利要求1所述的具有快拆机制的喷头结构，其特征在于，该连接管与该延伸管一体延伸成型。
9.如权利要求1所述的具有快拆机制的喷头结构，其特征在于，该连接管与该延伸管相互组接，该延伸管的外周缘具有一第三外螺纹，该连接管的内周缘具有一第三内螺纹，该第三外螺纹与该第三内螺纹相互螺接。
10.如权利要求1所述的具有快拆机制的喷头结构，其特征在于，该喷头管为SUS303不锈钢材质所构成。
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