CN1500043A - 打印头模块组件 - Google Patents

打印头模块组件 Download PDF

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CN1500043A
CN1500043A CNA028073290A CN02807329A CN1500043A CN 1500043 A CN1500043 A CN 1500043A CN A028073290 A CNA028073290 A CN A028073290A CN 02807329 A CN02807329 A CN 02807329A CN 1500043 A CN1500043 A CN 1500043A
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micro shaping
printhead module
ink
printhead
shaping
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CN1231356C (zh
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卡·西尔弗布鲁克
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托比·艾伦·金
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Memjet Technology Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/22Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of impact or pressure on a printing material or impression-transfer material
    • B41J2/23Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of impact or pressure on a printing material or impression-transfer material using print wires
    • B41J2/235Print head assemblies
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005Typewriters 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
    • B41J2/01Ink jet
    • B41J2/135Nozzles
    • B41J2/165Prevention or detection of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
    • B41J2/16505Caps, spittoons or covers for cleaning or preventing drying out
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005Typewriters 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
    • B41J2/01Ink jet
    • B41J2/135Nozzles
    • B41J2/14Structure thereof only for on-demand ink jet heads
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005Typewriters 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
    • B41J2/01Ink jet
    • B41J2/135Nozzles
    • B41J2/145Arrangement thereof
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005Typewriters 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
    • B41J2/01Ink jet
    • B41J2/135Nozzles
    • B41J2/145Arrangement thereof
    • B41J2/155Arrangement thereof for line printing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005Typewriters 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
    • B41J2/01Ink jet
    • B41J2/135Nozzles
    • B41J2/165Prevention or detection of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
    • B41J2/16585Prevention or detection of nozzle clogging, e.g. cleaning, capping or moistening for nozzles for paper-width or non-reciprocating print heads
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005Typewriters 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
    • B41J2/01Ink jet
    • B41J2/17Ink jet characterised by ink handling
    • B41J2/175Ink supply systems ; Circuit parts therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005Typewriters 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
    • B41J2/01Ink jet
    • B41J2/135Nozzles
    • B41J2/14Structure thereof only for on-demand ink jet heads
    • B41J2002/14362Assembling elements of heads
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005Typewriters 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
    • B41J2/01Ink jet
    • B41J2/135Nozzles
    • B41J2/14Structure thereof only for on-demand ink jet heads
    • B41J2002/14491Electrical connection
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2202/00Embodiments of or processes related to ink-jet or thermal heads
    • B41J2202/01Embodiments of or processes related to ink-jet heads
    • B41J2202/19Assembling head units
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2202/00Embodiments of or processes related to ink-jet or thermal heads
    • B41J2202/01Embodiments of or processes related to ink-jet heads
    • B41J2202/20Modules
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/49Method of mechanical manufacture
    • Y10T29/49002Electrical device making
    • Y10T29/49082Resistor making
    • Y10T29/49083Heater type

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  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
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  • Coupling Device And Connection With Printed Circuit (AREA)
  • Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)

Abstract

用于打印头组件的打印头模块包括一上部微成型和一下部微成型,这两个微成型被一个中间插入式薄膜隔开,所述打印头组件结合有许多模块,这些模块在按需喷墨式打印机上横穿一页宽被设置。所述中间插入式薄膜有激光烧蚀孔和位于两个面上的粘合层,所述粘合层在所述上部微成型,中间插入式薄膜和所述下部微成型之间提供有粘合剂。所述上部微成型和下部微成型通过销被校准保持,所述销在所述中间插入式薄膜层中穿过相应的小孔。在所述下部微成型的下侧提供有墨水入口和空气入口。墨水和空气从所述下部微成型,通过中间插入式薄膜层,传递到所述上部微成型处。在打印的过程中,从所述上部微成型处排出的空气将打印介质从所述打印头处推出。墨水从所述上部微成型处传递到安装于其内的各自的打印芯片里。

Description

打印头模块组件
尚未授权的申请
有关本发明的各种方法、系统和装置都在被本发明的申请人和受让人提交的下述未授权申请中揭示出来:
09/575,141,09/575,125,09/575,108,09/575,109,
这些未授权申请的内容在这里加以参考引用。
技术领域
本发明涉及一种用于打印机的打印头模块组件。
尤其是,本发明涉及一种用于A4页宽的按需喷墨式打印机的打印头模块组件,该打印机可在高达每分钟160页的速度下以1600点每英寸的摄影质量进行打印。
背景技术
一打印机的总体设计依据可更换的打印头模块的应用而定,所述打印头模块可在该打印机中被应用,所述打印头模块位于一大约有8英寸(21厘米)长的阵列中。这种系统的一个优点是能够在一打印头阵列中容易地拆除和更换任何有故障的模块。如果仅有一个芯片有故障,那么这种设计可消除不得不报废整个打印头的缺点。
在这种打印机中的打印头模块是由“Memjet”芯片构成的,在微机械和微电子机械系统(MEMS)中,所述“Memjet”芯片是作为一种其上安装有大量的热电式致动器的芯片。这种致动器可是那些如针对本申请的美国第6,044,646号专利中所揭示的致动器,但是,这种致动器是其它的MEMS打印机芯片。
在一典型的实施例中,十一个“Memjet”芯片在一金属通道中彼此邻接在一起以形成一完整的8英寸的打印头组件。
典型地,作为外界环境的打印头可具有六个墨水室,并且能够打印四种颜色印刷(用于印刷的四分色,CMYK)和红外墨水以及定色剂,在所述的外界环境中,本发明的打印头模块组件被定位。一空气泵将过滤空气通过一第七室供应到所述打印头处,该过滤空气可被用来使得外物远离喷嘴。
每一个打印头模块通过一传递墨水的弹性挤出部件来容纳墨水。典型地,所述打印头组件适合于打印A4纸,而同时不需要横穿纸宽来扫描打印头的移动。
所述打印头本身是模块化的,所以打印头阵列可被设置以形成任意宽度的打印头。
传统地,一第二打印头组件可被安装在送纸路径的对侧面上,以保证双面高速打印。
发明内容
本发明的一个目的是提供一种改进的打印头模块组件。
本发明的另一个目的是提供一种内部具有改进的模块的打印头组件。
本发明提供一种用于打印头组件的打印头模块,该打印头组件结合有多个上述的模块,该模块在一按需喷射式喷墨打印机中大致上横穿一页宽被定位,该打印头模块包括:
一上部微成型,该上部微成型定位于一打印机芯片处,该打印机芯片具有多个喷墨嘴,所述上部微成型具有将墨水输送到上述的打印机芯片处的墨水通道,
一下部微成型,该下部微成型具有入口,从一墨水源处通过该入口可接收到墨水,和
一中间插入式薄膜,该中间插入式薄膜被粘在上述的上部微成型和下部微成型之间,并且该中间插入式薄膜具有孔,墨水通过该孔可从所述的下部微成型处流到所述的上部微成型处。
优选地,所述中间插入式薄膜由惰性聚合物制成。
优选地,所述中间插入式薄膜的孔是通过激光烧蚀形成的。
优选地,所述中间插入式薄膜在它的相对面上具有一粘合层,在所述上部微成型,所述中间插入式薄膜和所述下部微成型之间提供粘合。
优选地,所述上部微成型具有一定位销,该定位销穿过位于所述中间插入式薄膜中的一小孔,并且被容纳在所述下部微成型中的一凹进处内,当所述上部微成型,所述中间插入式薄膜和所述下部微成型被结合在一起时,该销被用来将它们定位在一起。
优选地,所述下部微成型的入口在它的下侧形成。
优选地,提供有六个上述的入口以用于独立的墨水。
优选地,所述下部微成型也包括一进气口。
优选地,所述进气口包括一槽,该槽横穿所述下部微成型延伸。
优选地,所述上部微成型包括出口孔,该出口孔对应于位于所述打印机芯片的衬里层上的入口。
优选地,所述衬里层由硅制成。
优选地,所述打印头模块在所述下部微成型的边缘上还包括一弹性垫。
优选地,所述上部微成型和下部微成型是由液晶聚合物(LCP)构成。
优选地,所述上部微成型的一上部表面具有一系列交替的进气口和出气口,这些进气口和出气口与一端盖装置一起作用以使得气流改变方向穿过所述上部微成型。
优选地,每一个打印头模块都在它的下部微成型的一边缘上具有一弹性垫,所述弹性垫靠在所述通道的一内部表面上以将所述打印头模块明确地定位于所述通道内。
如本文中所应用的,术语“墨水”是用来指流过所述打印头的任何流体,该流体被输送到打印介质处。所述流体可是许多不同颜色的墨水中的一种,红外墨水,一定色剂等等。
附图说明
下面结合附图,举一实施例详细介绍本发明的优选方式。
图1所示为打印头的外观示意图;
图2所示为图1中打印头的分解示意图;
图3所示为喷墨模块的分解示意图;
图3a所示为图3中喷墨模块的分解反向示意图;
图4所示为一装配完毕的喷墨模块示意图;
图5所示为图4中的模块的反向示意图;
图6所示为图4中的模块的部分放大示意图;
图7所示为芯片部分组装的示意图;
图8a所示为图1中打印头的侧视图;
图8b所示为图8a中打印头的平面图;
图8c所示为图8a中打印头的另一侧视图;
图8d所示为图8b中打印头的反向平面图;
图9所示为图1中打印头的截面视图;
图10所示为在不加盖配置下,图1中打印头的示意图;
图11所示为在加盖配置下,图10中打印头的示意图;
图12a所示为端盖装置的示意图;
图12b所示为从一个不同的角度看,图12a的端盖装置示意图;
图13所示为将喷墨模块的负荷传送到打印头的示意图;
图14所示为打印头的侧视图,显示了打印头模块的装入方法;
图15所示为图1中打印头组件的剖视图;
图16所示为图15中打印头的部分放大示意图,显示了“Memjet”芯片部分的细节;
图17所示为打印头定位成型和金属通道的端部示意图;
图18a所示为成型端盖和弹性供墨挤出部件的端部示意图;以及
图18b所示为敞开状态下,图18a中端盖的示意图。
具体实施方式
附图中图1所示为打印头组件的外观示意图。图2所示为所述组件的核心部件的分解示意图。所述较佳实施例的打印头组件10包括11个打印头模块,该打印头模块沿着一金属“殷钢”通道16被定位。在每一个打印头模块11的中心处有一“Memjet”芯片23(如图3所示)。在该较佳实施例中,所述特别的芯片被选定为六色配置。
所述“Memjet”打印头模块11是由所述的“Memjet”芯片23,一密间距柔性印刷电路板26和两个中间夹有中间插入式薄膜35的微成型28,34构成。每一个模块11都形成一具有独立的墨水室63(如图9所示)的密封单元,所述墨水室63为所述芯片23供墨。所述模块11直接地插在一易弯曲的弹性挤出部件15上,该挤出部件15携带空气,墨水和定色剂。所述挤出部件15的上表面上具有孔21的重复的图案,该孔21与墨水入口32(如图3a所示)排成直线,所述墨水入口32处于每一个模块11的下侧上。所述挤出部件15被接合在一柔性印刷电路板上。
所述密间距柔性印刷电路板26向下包着每一个打印头模块11的侧边,并且与一柔性印刷电路板17(如图9所示)相接触。所述柔性印刷电路板17带有两条母线19(正),20(负),这两条母线用于给每一个模块11和数据连接提供电源。所述柔性印刷电路板17被接合在连续的金属“殷钢”通道16上。所述金属通道16用来在适当的位置处支撑所述模块11,并且被设计成具有和应用在所述模块中的硅相似的热膨胀系数。
当所述“Memjet”芯片不使用的时候,一端盖装置12被用来盖在其上。典型地,所述端盖装置由弹簧钢制成,并且其上插有一成型弹性垫47(如图12a所示)。所述垫47当没被加盖时用来通过管道输送空气进入所述的“Memjet”芯片中,而当被加盖时用来隔绝空气并且盖住喷嘴防护装置24(如图9所示)。所述端盖装置12通过一凸轮轴13被致动,典型地,该凸轮轴13可在整个180°的范围内旋转。
典型地,所述“Memjet”芯片的全部厚度是0.6mm,该厚度包括一150微米的入口衬里层27和一150微米厚度的喷嘴防护装置24。这些元件被装配在电晶片上。
所述喷嘴防护装置24允许过滤空气进入到一80微米厚的位于所述“Memjet”喷嘴62上的腔64(如图16所示)内。所述加压空气通过喷嘴防护装置24(在打印操作中具有墨水)中的微滴孔45流动,并且通过阻挡杂质粒子被用来保护精密的“Memjet”喷嘴62。
一硅芯片衬里层27从直接封装的打印头模块处将墨水通过管道输送到“Memjet”喷嘴62的排上。所述“Memjet”芯片23从116位置处芯片上的结合垫到所述密间距柔性印刷电路板26是引线接合部件25。该引线接合部件具有120微米的间距,且当它们与密间距柔性印刷电路板垫相接合时被切断(图3)。所述密间距柔性印刷电路板26沿着所述柔性印刷电路板的边缘通过一系列镀金接触垫69从柔性印刷电路板17处传送数据和动力。
在运输,定位和将所述芯片组件粘合到所述打印头模块组件中之前,在芯片和密间距柔性印刷电路板26之间的引线结合操作可远程操作完成。二者择一地,所述“Memjet”芯片23可首先被粘合到所述上部微成型28中,然后所述密间距柔性印刷电路板26被粘合到适当的位置处。随后所述引线结合操作可在原位置处进行,而不会有使微成型28,34发生变形的危险。所述上部微成型28可由液晶聚合物(LCP)的混合物制成。因为所述上部微成型28的晶状结构是微小的,所以不管熔点相对地有多低,热变形温度(180℃-260℃),持续使用温度(200℃-240℃)和耐焊接热(从10秒钟260℃到10秒钟310℃)都较高。
在图3中,每一个打印头模块11都包括一上部微成型28和一下部微成型34,这两个微成型被中间插入式薄膜35分开。
该中间插入式薄膜35可以是惰性聚合物如聚酰亚胺,其具有较好的耐化学性和尺寸稳定性。该中间插入式薄膜35可以具有激光烧蚀的孔65,而且可以包括双面粘合剂(即双面粘合层),该双面粘合剂在上部微成型、中间插入式薄膜和下部微成型之间提供粘合。
该上部微成型28具有一对穿过中间插入式薄膜35中的对应小孔的对准销29,其被容置于下部微成型34中的对应凹处66中。这样,当各部件接合在一起时,就能对准。一旦接合在一起,上部微成型和下部微成型就在整个“Memjet”打印头模块11中形成曲折的墨水和空气通道。
在下部微成型34的下面有环形墨水入口32。在一较佳实施例中,有6个这样的入口32对应各种墨水(黑色、黄色、洋红色、青色、定色剂和红外墨水)。还有一个空气入口槽67。该空气入口槽67延伸通过下部微成型34,直到第二入口,该第二入口通过一个排气孔33,通过密间距柔性印刷电路板26中的对准孔68排出空气。这样,在打印过程中,有助于从打印头中推出打印介质。如从空气入口槽67延伸出的路径一样,该墨水入口32在上部微成型28的下表面继续延伸。该墨水入口通向200微米的出口孔,该出口孔在图3的也以附图标记32指代。这些孔对应“Memjet”芯片23的硅衬里层27上的入口。
在下部微成型34的一个边缘上,具有一对弹性垫36。当模块在组装过程中被微放置时,这可用于调整偏差和主动地将打印头模块11固定到金属通道16中。
用于“Memjet”微成型的较佳材料是LCP。LCP对于成型的微小零件而言具有合适的流体特性,且具有相对低的热膨胀系数。
上部微成型28中具有自动拾取零件,能够使其在组装过程中对打印头模块11进行精确定位。
图3所示的上部微成型28的上表面具有一系列交互的空气入口和出口31。它们与端盖装置12连接时起作用,或者都被密封或者被分成空气入口/出口室,这取决于端盖装置12的位置。根据所述部件被密封或开盖,它们将空气从入口槽67转到芯片23。
封口机凸轮零件40包括一个用于端盖装置的斜坡,该斜坡在上部微成型28的上表面示出了两个位置。这方便端盖装置12对芯片和空气室进行所需的封闭或打开动作。也就是说,在加盖和去盖的操作过程中,当端盖装置被引起通过打印芯片的侧移时,封口机凸轮零件40的斜面用于弹性地弯曲,由于对凸轮轴13的操作使得端盖装置移动,因此可防止该装置的碎屑损坏喷嘴防护装置24。
该“Memjet”芯片组件23被拾取且被接合于打印头模块11上的上部微成型28中。密间距柔性印刷电路板26被接合,并包绕组装完毕的打印头模块11的侧面,如图4所示。在初始的接合操作之后,芯片23具有更多的用于长边的密封剂和粘合剂46。这有助于“罐入”接合线25(如图6所示),将“Memjet”芯片23密封于成型28,并形成一个密封的通道,过滤的空气能够通过喷嘴防护装置24流进和排出该密封的通道。
所述柔性印刷电路板17从主印刷电路板(未图示)处将所有的数据和电源连接传送到每个“Memjet”打印头模块11处。该柔性印刷电路板17具有一系列镀金的、半球形的接触点69(如图2所示),该接触点69和每个“Memjet”打印头模块11的密间距柔性印刷电路板26上的接触垫41、42,43相接触。
两个铜质母线带19,20,一般为200微米厚,被夹紧且焊接在柔性印刷电路板17上。母线19,20连接同样传送有数据的柔性终端。
柔性印刷电路板17是大约长为340mm,宽为14mm的带形。它在组装过程中与金属通道16接合,且只从打印头组件的一端伸出。
主要部件位于其内的金属U形通道16由一种称为“殷钢36”的特殊合金制成。它是一种镍含量为36%的镍铁合金,其在400°F的高温下热膨胀系数为碳钢的十分之一。该殷钢被退火,以达到最理想的尺寸稳定性。
另外,该殷钢表面被镀上0.056%厚度的镍。这更有助于和2×10-6/℃的硅的热膨胀系数相吻合。
殷钢通道16用于在相互的精确对准操作中捕捉“Memjet”打印头模块11,并在模块11上施以足够的力,以便在每个打印头组件的墨水入口32和被激光烧蚀形成的弹性供墨挤出部件15的出口孔21之间形成密封结构。
对于硅芯片,殷钢通道的与硅芯片相似的热膨胀系数允许在温度变化过程中发生相似的变动。位于每个打印头模块11的一侧上的弹性垫36用于“润滑”通道16中的打印头模块,以便在不发生偏斜的情况下,调整任何侧向热膨胀系数的偏差。殷钢通道是冷轧、退火和镀镍钢带。除了需要在形状上弯曲两次之外,该通道在每一端还具有两个方形切口80。这两个方形切口与打印头定位成型14上的卡扣接头81配合。
该弹性供墨挤出部件15为非疏水性的、精确部件。其功能是向“Memjet”打印头模块11传输墨水和空气。该挤出部件在组装过程中被接合到柔性印刷电路板17的顶部,且具有两种类型的成型端盖。其中一种示于图18a中的70。
一系列的形成图案的孔21位于挤出部件15的上表面处。它们是被激光烧蚀而成的。一个罩被制成到端部并被放置在挤出部件的表面上,能够对其上的激光进行聚焦。孔21从上表面被蒸发,但是由于激光的焦点长度,激光并不会切入挤出部件15的下表面。
激光烧蚀孔21的11个重复图案形成挤出部件15的墨水和空气出口21。它们与位于“Memjet”打印头模块下部微成型34的下侧上的环孔入口32相接。大孔(在图18a中未示出,隐藏于端盖70的上板71下方)的不同图案在挤出部件15的一端上烧蚀而成。它们与上述位于每一个下部微成型34的下侧上的以同样的方式烧蚀而成的小孔75相配合,这些小孔75具有环形肋。墨水和空气输送软管78连到各自的连接器76上,连接器76从上板71延伸出来。由于挤出部件15的固有的弹性,它能够弯曲成多种墨水连接安装配置,而不会限制墨水和空气的流动。成型端盖70具有一个脊73,上、下板通过脊73铰接成一体。脊73包括一排插头74,插头74被容置在挤出部件15的各自的流动通道的端部。
挤出部件15的另一端用单个塞子封闭,这些塞子以与脊17上的插头74的同样的方式来阻塞通道。
端盖70以扣紧配合片77的形式扣到墨水挤出部件15上。一旦与输送软管78一起装配,就可从墨水池和空气泵得到墨水和空气,可能具有过滤装置。端盖70可以与挤出部件的任意一端相连,即可以位于打印头的任意一端。
被推进到挤出部件15的通道和板71、72中的插头74是折叠的。扣紧配合片77夹紧所述成型,防止其从挤出部件滑落。当板扣在一起,围绕挤出部件的末端形成一个密封圈装置。与连接器76上的各自的软管78不同的是,所述成型70可以直接与一个墨水盒接触。一个密封销装置也可以应用于所述成型70。例如,一个预成型的,带有一个弹性圈的中空金属销可以固定到入口连接器76的顶部。当墨水盒插入后,以此墨水盒来自动密封入口。空气入口和软管可以比其它的入口小,为的是避免从空气通道意外的排出墨水。
“Memjet”打印头的端盖装置12典型地由不锈弹簧钢制成。如图12a和图12b所示,一个弹性密封或上插入成型47与端盖装置相连。形成端盖装置的金属部分是冲压毛坯件,然后将其插入到注塑成型工具中,准备将塑料注射到它的下面。小孔79(如图13b所示)位于金属端盖装置12的上表面,这些小孔可以是脉冲孔。这些小孔用来将上插入成型47锁到金属上。在使用成型47后,毛坯被插入到一个冲压工具中,进行附加的弯曲操作和对弹簧48的一体成型。
弹性上插入件47有一系列的方形凹槽或空气室56。不加盖时这些凹槽形成室。室56位于“Memjet”打印头模块11中的上部微成型28的空气入口和排出孔30的上方。这使得空气可以从一个入口流到下一个出口。当端盖装置12向前移向“原始”封闭位置,如图11所示,这些通气孔32可以由上插入成型47的一个空白部分来密封,以切断流向“Memjet”芯片23的空气流。这防止过滤的空气干燥而阻塞精密的“Memjet”喷嘴。
上插入成型47中的一个功能是覆盖和抵着喷嘴防护装置24扣接到“Memjet”芯片23上。这可防止干燥,但主要是防止外物,如纸屑,进入芯片并损伤喷嘴。芯片只是在打印时暴露在外,此时过滤的空气经喷嘴防护装置24与墨滴一同排出。在打印过程中正空气压力排斥外物,在不用时,端盖装置保护芯片。
一体成型弹簧48从金属通道16的侧边偏离端盖装置12。端盖装置12向打印头模块11的上部和金属通道下面施加一个压力。端盖装置12的侧面的端盖运动由一个偏心凸轮轴13来控制,该凸轮轴13抵着端盖装置的一侧安装。它将装置12推向金属通道16。在这个运动过程中,位于端盖装置12的上表面的下方的突起57跨过位于上部微成型28上的各自的斜面40。这个运动使端盖装置弯曲,并且使其上表面上升从而使上插入成型47当它侧向移动到喷嘴防护装置24的上部时上升。
凸轮轴13,可以反转,由两个打印头定位成型14定位。凸轮轴11可以在一端有一个平面,或者可以有带有一个花键或键槽来容置齿轮22或其它类型的运动控制件。
该“Memjet”芯片和打印头模块按照下述的步骤组装:
1、该“Memjet”芯片23通过一个拾取和自动放置装置进行排空试验,这还将晶片切成小片,并将各个小片传送到密间距柔性印刷电路板接合区域。
2、当容纳后,该“Memjet”芯片23被放置在离密间距柔性印刷电路板26有530微米的位置处,且具有应用在芯片上的接合垫和密间距柔性印刷电路板上的导电垫之间的引线接合部件25。这构成了“Memjet”芯片组件。
3、和步骤2可替换的是,对打印头模块的上部成型28中的芯片腔的内壁使用粘合剂,并将芯片首先接合于适当位置。密间距柔性印刷电路板26然后可以被应用到微成型的上表面,并包在其侧上。然后,引线接合部件25就被连接在芯片上的接合垫与密间距柔性印刷电路板之间。
4、“Memjet”芯片组件被真空传送到打印头模块所存储的接合区域。
5、粘合剂被应用在芯片腔的下部内壁和一区域中,在该区域中,所述密间距柔性印刷电路板将要被定位在所述打印头模块的上部微成型中。
6、芯片组件(和密间距柔性印刷电路板)被接合在该位置。密间距柔性印刷电路板被小心地包在上部微成型的一侧周围,这样就不会损坏引线接合部件。如果认为密间距柔性印刷电路板可以对引线接合部件施压,这可以理解为第二步粘合的操作。由于内部的芯片腔壁被涂覆,和芯片平行的一行粘合剂可以同时使用。这允许芯片组件和密间距柔性印刷电路板置于芯片腔中,且允许密间距柔性印刷电路板与微成型在不需外压的情况下接合。该处理之后,第二粘合操作是将粘合剂应用于密间距柔性印刷电路板区域中的上部微成型的短侧壁。这允许密间距柔性印刷电路板包在微成型周围且固定,同时在引线接合部件下面,仍旧在沿顶部边缘的位置牢牢地接合。
7、在最后的粘合操作中,喷嘴防护装置的上部被粘附到上部微成型,形成一个密封的空气室。对”Memjet”芯片的对面的长边也使用粘合剂,在此,接合引线在处理过程中被“罐入”。
8、使用纯净水对这些模块进行湿度试验,以保证可靠的性能,然后烘干。
9、在被包装成打印头组件或单独的部件之前,这些模块被输送至干净的存储区域。然后完成“Memjet”打印头模块组件的组装工作。
10、金属殷钢通道16被拾取并放置于一夹具中。
11、柔性印刷电路板17被拾取并使用粘合剂固定于母线的一侧上,定位并接合于底板和金属通道的一侧上。
12、柔性墨水挤出部件15被拾取,并粘合于下面。然后被定位并粘合于柔性印刷电路板17顶部的位置。其中一个打印头定位端盖也配合该挤出部件输出端。这样就构成了一个通道组件。
激光烧蚀的过程如下:
13、通道组件被输送至一个受激准分子激光烧蚀区域。
14、该组件被放入一个夹具中,该挤出部件被定位、罩住并被激光烧蚀。这样就形成了一个上部表面中的墨水孔。
15、该墨水挤出部件15具有适用的墨水和空气连接器成型70。加压的空气或纯净水通过挤出部件来清洗。
16、该端盖成型70与挤出部件15相连接。然后用热空气烘干。
17、该通道组件被输送到打印头模块区域,成为直接的模块组件。一种替换做法是,在被烧蚀的孔上加一层薄膜,在需要时存储通道组件。
“Memjet”芯片和打印头模块进行如下组装:
通道的打印头组件以下列方式组装:
18.通道组件是被拾取,放置和夹进打印头组件区域的横向阶段。
19.如图14所示,自动机械工具58抓住金属通道的侧面并且抵着下表面枢转点进行枢转来有效地弯曲通道部分200到300微米。所施加的力在图14中以箭头矢量F表示。这使得第一“Memjet“打印头组件可以由自动机械拾取而放入到通道组件中(相对于印刷电路板17上的第一个接触垫片和墨水挤出孔)。
20.将工具58松开,通过殷钢通道的弹回来捕获打印头模块,横向阶段将组件向前移动19.81mm。
21.工具58再次抓住通道的侧边,使其弯曲分离以准备下一个打印头模块。
22.第二个打印头模块11被拾取并且被放入到距离前一个模块50微米的距离处。
23.一个调整致动臂将第二个打印头模块的末端定位。所述的臂在每一条上由一列光学基准来引导。当调整臂推动打印头模块,位于基准之间的间隙关闭直到它们实现准确间距为19.182mm。
24.工具58放开,移去调整臂,将第二个打印头模块连接到位。
25.重复过程直到通道组件装满打印头模块。从横向阶段将此单元移去并运送到端盖组件区。二者择一的,薄膜可以用来覆盖打印头模块的喷嘴防护装置来作为一个端盖,并且此单元可以进行贮存以备使用。
端盖装置的组装如下:
26.将打印头组件运送到一个端盖区域。端盖装置12被拾取,轻轻地进行分离弯曲,并被推到打印头组件的第一模块11和金属通道16上。利用上部微成型的凹槽83内的钢中的斜面57,端盖装置12自动进入到组件中,一个单独的斜坡40位于上部微成型中。
27.接下来将端盖装置应用到所有的打印头模块中。
28.当完成时,凸轮轴13位于组件的打印头定位成型14中。有第二个打印头定位成型位于其自由端,该成型扣在金属通道的末端,支撑着凸轮轴并扣合着装置腔。
29.成型齿轮22或其它的动作控制件装置可以在这个点上加到凸轮轴的任一端上。
30.端盖组件自动检测。
打印控制如下进行:
31:打印头组件10被移动到测试区。通过“Memjet“模块打印头施加的墨水处于压力下。在启动过程中空气通过“Memjet”排出去。当充电时,打印头可以进行电连接并进行测试。
32.如下进行电连接和测试:
33.对印刷电路板进行电能和数据连接。最终的测试可以开始,当经过时,“Memjet“模块打印头封闭,其下侧有一个弹性密封膜来保护打印头直到产品安装完成。

Claims (16)

1.一种用于打印头组件的打印头模块,该打印头组件结合有多个上述的模块,该模块在一按需喷射式喷墨打印机中大致上横穿一页宽被定位,该打印头模块包括:
一上部微成型,该上部微成型定位于一打印机芯片处,该打印机芯片具有多个喷墨嘴,所述上部微成型具有将墨水输送到上述的打印机芯片处的墨水通道,
一下部微成型,该下部微成型具有入口,从一墨水源处通过该入口可接收到墨水,和
一中间插入式薄膜,该中间插入式薄膜被粘在上述的上部微成型和下部微成型之间,并且该中间插入式薄膜具有孔,墨水通过该孔可从所述的下部微成型处流到所述的上部微成型处。
2.如权利要求1所述的打印头模块,其特征在于:所述中间插入式薄膜由惰性聚合物制成。
3.如权利要求1所述的打印头模块,其特征在于:所述中间插入式薄膜的孔是通过激光烧蚀形成的。
4.如权利要求1所述的打印头模块,其特征在于:所述中间插入式薄膜在它的相对面上具有一粘合层,在所述上部微成型,所述中间插入式薄膜和所述下部微成型之间提供粘合。
5.如权利要求1所述的打印头模块,其特征在于:所述上部微成型具有一定位销,该定位销穿过位于所述中间插入式薄膜中的一小孔,并且被容纳在所述下部微成型中的一凹进处内,当所述上部微成型,所述中间插入式薄膜和所述下部微成型被结合在一起时,该销被用来将它们定位在一起。
6.如权利要求1所述的打印头模块,其特征在于:所述下部微成型的入口在它的下侧形成。
7.如权利要求6所述的打印头模块,其特征在于:提供有六个上述的入口以用于独立的墨水。
8.如权利要求6所述的打印头模块,其特征在于:所述下部微成型也包括一进气口。
9.如权利要求8所述的打印头模块,其特征在于:所述进气口包括一槽,该槽横穿所述下部微成型延伸。
10.如权利要求1所述的打印头模块,其特征在于:所述上部微成型包括出口孔,该出口孔对应于位于所述打印机芯片的衬里层上的入口。
11.如权利要求10所述的打印头模块,其特征在于:所述衬里层由硅制成。
12.如权利要求1所述的打印头模块,其特征在于:所述打印头模块在所述下部微成型的边缘上还包括一弹性垫。
13.如权利要求1所述的打印头模块,其特征在于:所述上部微成型和下部微成型是由液晶聚合物(LCP)构成。
14.如权利要求1所述的打印头模块,其特征在于:所述上部微成型的一上部表面具有一系列交替的进气口和出气口,这些进气口和出气口与一端盖装置一起作用以使得气流改变方向穿过所述上部微成型。
15.一种结合有许多打印头的打印头组件,每一个都如权利要求1所述的,所述打印头组件包括一通道,每一个打印头沿着所述通道被定位。
16.如权利要求15所述的打印头模块,其特征在于:每一个打印头模块都在它的下部微成型的一边缘上具有一弹性垫,所述弹性垫靠在所述通道的一内部表面上以将所述打印头模块明确地定位于所述通道内。
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CN112512814A (zh) * 2018-07-30 2021-03-16 锡克拜控股有限公司 多芯片模块(mcm)组件
CN112512814B (zh) * 2018-07-30 2022-09-09 锡克拜控股有限公司 多芯片模块(mcm)组件
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