WO2014146459A1 - 一种喷头无缝拼接机构和该机构的调节方法 - Google Patents

一种喷头无缝拼接机构和该机构的调节方法 Download PDF

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Publication number
WO2014146459A1
WO2014146459A1 PCT/CN2013/088484 CN2013088484W WO2014146459A1 WO 2014146459 A1 WO2014146459 A1 WO 2014146459A1 CN 2013088484 W CN2013088484 W CN 2013088484W WO 2014146459 A1 WO2014146459 A1 WO 2014146459A1
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WIPO (PCT)
Prior art keywords
nozzle
head
splicing mechanism
adjustment
adjusted
Prior art date
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Ceased
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PCT/CN2013/088484
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English (en)
French (fr)
Inventor
尧云辉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Peking University Founder Group Co Ltd
Beijing Founder Electronics Co Ltd
Original Assignee
Peking University Founder Group Co Ltd
Beijing Founder Electronics Co Ltd
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Application filed by Peking University Founder Group Co Ltd, Beijing Founder Electronics Co Ltd filed Critical Peking University Founder Group Co Ltd
Priority to EP13878677.7A priority Critical patent/EP2977207A4/en
Priority to JP2016503519A priority patent/JP6117985B2/ja
Priority to US14/778,382 priority patent/US10059105B2/en
Publication of WO2014146459A1 publication Critical patent/WO2014146459A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • B41J25/00Actions or mechanisms not otherwise provided for
    • B41J25/001Mechanisms for bodily moving print heads or carriages parallel to the paper surface
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/60Arrangements for mounting, supporting or holding spraying apparatus
    • B05B15/68Arrangements for adjusting the position of spray 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
    • B41J2/16Production of nozzles

Definitions

  • the invention belongs to the technical field of printing machinery, and particularly relates to a seamless joint mechanism of a nozzle and a method for adjusting the mechanism. Background technique
  • a voltage is used to print ink onto a substrate through a nozzle orifice of a printhead.
  • the print heads need to be spliced before printing, so that a sample of a specific print width can be printed according to the required print width.
  • the nozzle and the nozzle are laterally superimposed and spliced to realize the zero nozzle of the nozzle, and the nozzle of the nozzle is fully utilized for printing; and for the overprinting between the color group and the color group, the splicing also plays a key
  • the important role is that the angle formed by the dot group printed on the printing material to the printing material is the same, which is a good guarantee for the printing overprint.
  • the number of nozzles can be adjusted according to the printing width, and the printing width of each nozzle is also different depending on the model of the nozzle, that is, the spraying of each nozzle The number of holes can also be adjusted.
  • the position of the license is located
  • the object of the present invention is to solve the problem that the prior art nozzle has misalignment of the nozzle orifice, reduced printing width or whitening of the middle portion due to processing error, human error, etc., and provides a seamless splicing mechanism for the nozzle.
  • the technical solution adopted to solve the technical problem of the present invention is a seamless joint mechanism of the nozzle, wherein the splicing mechanism comprises: a microscopic device for detecting the coordinates of the nozzle orifice;
  • a nozzle adjustment seat for fixing the nozzle for fixing the nozzle
  • a nozzle base that is adjustably coupled to the nozzle adjustment seat.
  • the head adjusting seat is movable on the head plate in the direction in which the nozzle holes are arranged.
  • the spray head adjustment seat is rotatable on the spray head bottom plate.
  • the nozzle adjusting seat and the nozzle bottom plate are connected by a pin screw, and the nozzle adjusting seat is provided with an elongated hole through which the pin screw passes, the diameter of the long hole and the diameter of the pin screw Matching, the direction of the long holes is the same as the direction in which the nozzle holes are arranged.
  • the long hole is disposed at an intermediate position of the head adjusting seat along the direction in which the head holes are arranged.
  • a differential head for the lateral adjustment of the head adjustment seat and a longitudinally adjusted differential head are provided on the bottom plate of the head.
  • the laterally-adjusting differential head is disposed on the lateral fixing seat, and the lateral fixing seat is disposed on the nozzle bottom plate;
  • the longitudinally-adjusting differential head is disposed on the angle adjustment seat, and the angle adjustment seat is disposed on the nozzle bottom plate.
  • the differential head has an adjustment accuracy of 0.01 mm.
  • Another object of the present invention is to provide a method for using the above-described seamless splice splicing mechanism, comprising the following steps:
  • the nozzle on one side of the splicing platform is used as a reference nozzle, and is placed under the microscopic device to detect the coordinate values AO ( xoi, yoi ), BO ( x 02 , y 02 ) of the starting end orifice AO and the end orifice B0;
  • the nozzle to be adjusted is placed under the microscopic device, and the coordinate values A1 ( ⁇ 1 , yil ), Bl ( x 12 , y 12 ) of the starting end orifice A1 and the end orifice B1 are detected ;
  • the angle between the line connecting the starting end orifice A 1 and the end orifice B 1 and the transverse axis (X) is based on ( ⁇ 12 - ⁇ ) , you can calculate ⁇ ;
  • L(A0B0) is the length of the nozzle orifice, which is the fixed value set by the nozzle manufacturer;
  • the adjusted spray head can also be used as a reference spray head.
  • the adjusted spray head is adjacent to the next spray head to be adjusted.
  • the seamless splicing mechanism of the nozzle of the present invention is enlarged under the microscope, the microscope Identify the coordinates of each nozzle to find the coordinates of each nozzle.
  • the seamless splicing mechanism adjusts the adjustment of the structure through the adjustability of its structure, the calculation of the coordinates, and the digital input of the human. Seamless stitching of meaning.
  • the seamless splicing mechanism of the present invention has a low cost (total cost of about 3,000 yuan), which is far lower than the price of the splicing platform on the market.
  • total cost of about 3,000 yuan
  • the price of a seamless splicing platform produced by Panasonic Corporation is about 300,000.
  • the time for completing the adjustment of the same number of nozzles of the seamless splicing mechanism of the present invention is 1/6 of the time taken for the seamless splicing mechanism of the existing nozzle, which improves the efficiency of splicing adjustment.
  • FIG. 1 is a top plan view of a seamless splicing mechanism of a nozzle according to Embodiment 1 of the present invention.
  • Fig. 2 is a plan view showing the long hole of the seamless splicing mechanism of the nozzle in the embodiment 1 of the present invention.
  • Fig. 3 is a perspective view showing the seamless splicing mechanism of the nozzle in the first embodiment of the present invention.
  • FIG. 4 is a schematic structural view of a laterally-adjusting differential head of a nozzle in a seamless splicing mechanism of a nozzle according to Embodiment 1 of the present invention.
  • Fig. 5 is a schematic view showing the structure of an angular differential head of a nozzle in a seamless splicing mechanism of a nozzle according to Embodiment 1 of the present invention
  • Fig. 6 is a schematic view showing the calculation of the lateral adjustment amount of the nozzle in the seamless splicing mechanism of the nozzle in the embodiment 1 of the present invention.
  • Fig. 7 is a schematic view showing the calculation of the longitudinal adjustment amount of the nozzle in the seamless splicing mechanism of the nozzle in the embodiment 1 of the present invention.
  • FIG. 8 is a test report of the nozzle splicing of the seamless splicing mechanism of the nozzle of the present invention. among them:
  • the embodiment provides a seamless splicing mechanism for the nozzle.
  • the xaarlOOl nozzle is taken as an example.
  • the nozzle seamless splicing mechanism of the present invention only needs to match the type of nozzle.
  • XaarlOOl nozzle has a total of 1 # ⁇ 1001# orifice, the print width of the orifice is
  • the seamless splicing mechanism of the nozzle includes: 6 nozzles 1 are arranged in two rows in the lateral direction (X-axis), and the nozzle holes of each nozzle are also arranged in the lateral direction (X-axis).
  • the direction perpendicular to the above-mentioned transverse direction is defined as the longitudinal direction (y-axis);
  • the microscope comprising a microscope having a coordinate system in its microscopic field of view (the coordinate system and the X-axis and the y-axis described above) The direction of the direction is the same), and the coordinates of the nozzle orifice can be detected in the coordinate system;
  • the nozzle adjusting seat 2 for fixing the nozzle 1 is fixed to the nozzle adjusting seat 2 by a screw connection;
  • the nozzle base plate 3 that is adjustably connected to the head adjustment seat 2.
  • the head adjusting seat 2 and the head plate 3 are connected by a pin screw 6, and as shown in Fig. 2, the head adjusting seat 2 is provided with a long hole 9 through which the pin screw 6 passes.
  • the diameter of the elongated hole 9 matches the diameter of the pin screw 6, the long hole 9
  • the direction is the same as the direction in which the nozzle orifices are arranged.
  • the nozzle adjusting seat 2 moves laterally relative to the nozzle bottom plate 3, and the pin screw moves in the longitudinal direction of the long hole 9 to ensure that the nozzle adjusting seat 2 is connected with the nozzle bottom plate 3;
  • the head adjusting seat 2 can be rotated relative to the head plate 3, and the pin screw can be rotated to ensure that the head adjusting seat 2 is connected to the head plate 3.
  • the pin shaft is (p3h6, and the long hole 9 is 3H7, which cooperates with each other to ensure that the head adjusting seat 2 and the head plate 3 are relatively moved in the lateral direction and relatively longitudinally.
  • a lateral and longitudinal differential head 8 is provided on the head plate 3.
  • the differential head 8 for adjusting the lateral position is fixed to the lateral fixing seat 7, which is fixed to the head plate 3 of the head.
  • a lateral adjusting block 4 can be connected to the head holder adjusting seat 2, and the lateral adjustment of the head can be performed by moving the head adjusting seat 2 to the shaft head of the differential head 8 for adjusting the lateral position.
  • the differential head 8 has a minimum scale of 0.01 mm.
  • the angle-adjusting differential head 8 is fixed to the angle adjusting seat 5, and the angle adjusting seat 5 is fixed to the head plate 3, and the adjusting head 2 is moved to the axis of the differential head 8 for adjusting the longitudinal position.
  • the longitudinal adjustment of the nozzle is performed at the head.
  • the minimum graduation of the differential head 8 is 0.01 mm.
  • the above-mentioned nozzle seamless splicing mechanism is used for splicing the xaarlOOl nozzle as an example, and the adjustment method thereof is introduced.
  • the adjustment method includes:
  • the nozzle on one side of the splicing platform is used as a reference nozzle.
  • the leftmost nozzle is used as a reference nozzle, and is placed under the microscopic device to detect the initial nozzle AO and the end nozzle.
  • the coordinate value of B0 is Ai xd, yoi ), B0 ( x 02 , yoi );
  • the nozzle to be adjusted (dislocated adjacent nozzle) is placed under the microscopic device, and the coordinate values Al (xii, yn ) of the starting end orifice A1 and the end orifice B1 are detected.
  • the angle between the line connecting the starting end orifice A 1 and the end orifice B 1 and the transverse axis (X) is based on ( ⁇ 12 - ⁇ ) , you can calculate ⁇ ;
  • the center of the A1 to pin screw 6 (point C) is L in the lateral direction, and the line connecting Al and B1 is rotated at the center of the shaft screw 6, and the longitudinal adjustment of the head to be adjusted is ⁇ .
  • L 0.5xL(A0B0) x Cos9 0 ;
  • L(AOBO) is the length of the nozzle orifice and is the fixed value set by the nozzle manufacturer;
  • the lateral adjustment amount ⁇ X and the longitudinal adjustment amount ⁇ y are quantized by the transverse differential head and the longitudinal differential head, the lateral adjustment amount X and the longitudinal adjustment amount A y of the nozzle adjustment seat are adjusted, and the adjustment of the nozzle to be adjusted can be completed.
  • the coordinates of the orifices B0 and A1 of the two nozzles in the X-axis direction are the same, and the wirings of the orifices (A0B0 and A1B1) are parallel to each other.
  • the adjustment amount of the differential head 8 in the lateral position is set to the lateral adjustment amount ⁇ x, and the head adjustment seat (2) is moved to the shaft head of the differential head 8 which adjusts the lateral position to complete the lateral adjustment.
  • the maximum angle error is 0.000252°
  • the set of institutions has achieved the goal of seamless splice splicing, and the mechanism is low in cost (the total cost is about 3,000 yuan), which is far lower than the price of the splicing platform on the market, such as the production price of Panasonic. At around 300,000.
  • the time taken to complete the adjustment of the same number of nozzles is 1/6 of the time taken by the existing seamless jointing mechanism of the nozzle, which improves the efficiency of the stitching adjustment.
  • the seamless splicing mechanism of the nozzle of the embodiment is enlarged under the microscope, and the microscope recognizes the coordinates of each nozzle to find the coordinates of each nozzle, and the seamless splicing mechanism adjusts the structure through its own structure, and the coordinate can be calculated.
  • the artificial digital input needs to be adjusted to quantify the adjustment and achieve a true seamless mosaic.
  • the reference nozzle can always use the nozzle on one side of the splicing platform, or the adjusted nozzle can be used as a new reference nozzle.
  • the adjusted nozzle adjacent the next nozzle to be adjusted is used as a new reference nozzle.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Coating Apparatus (AREA)
  • Ink Jet (AREA)
  • Nozzles (AREA)
  • Particle Formation And Scattering Control In Inkjet Printers (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

一种喷头无缝拼接机构和该机构的调节方法,该喷头无缝拼接机构包括:用于检测喷头喷孔坐标的显微装置;用于固定喷头(1)的喷头调节座(2);与所述的喷头调节座(2)可调整地连接的喷头底板(3)。该喷头无缝拼接机构成本低廉、调整效率高、实现了数字化调节。

Description

一种喷头无缝拼接机构和该机构的调节方法 技术领域
本发明属于印刷机械技术领域, 具体涉及一种喷头无缝拼 接机构和该机构的调节方法。 背景技术
在数字喷墨印刷领域, 印刷时利用电压将墨水通过喷头的 喷孔喷印在承印材料上。根据印刷宽度的不同, 印刷前需要将喷 头进行拼接排列,从而能够根据需求的印刷宽度上打印出特定的 印刷宽度的样张来。 对于单色模组上喷头与喷头之间横向做叠 加、 拼接, 实现喷头零甩嘴, 充分利用喷头的喷孔实现印刷; 而 对于色组与色组之间的套印, 拼接也起到至关重要的作用, 它将 从喷孔打印到承印材料上的点组所形成的角度一致,从而很好的 保证提供了印刷套印的先决条件。
作为被拼接的喷头通常交错排列为两行, 喷头的个数根据 印刷宽度的不同可以作调整,每个喷头的喷印宽度也因喷头的型 号不同有所不同, 也就说每个喷头的喷孔的数量也是可以调整 的。
证位于 的错位 的起
Figure imgf000002_0001
目前情况下, 喷头排列时, 理论拼接位置可根据设计定义, 但是实际情况是, 由于所有的零部件加工存在加工误差, 安装时 有安装误差、 喷头本身尺寸各异, 所以在喷头的排列时就会发生 错位现象。 一旦喷头发生错位, 印刷宽度会减小或者印刷时中间 有露白, 对印刷造成影响。 发明内容
本发明的目的是解决现有的喷头由于加工误差、 人为误差 等原因造成的喷头喷孔错位、印刷宽度减小或者中间部分产生露 白的问题, 提供一种喷头无缝拼接机构。
解决本发明技术问题所采用的技术方案是一种喷头无缝拼 接机构, 所述的拼接机构包括: 用于检测喷头喷孔坐标的显微装 置;
用于固定喷头的喷头调节座;
与所述的喷头调节座可调整地连接的喷头底板。
优选的是, 所述的喷头调节座可沿所述的喷头喷孔的排列 方向在喷头底板上移动。
优选的是, 所述的喷头调节座可在喷头底板上旋转。
优选的是, 所述的喷头调节座与喷头底板用销轴螺钉连接, 所述的喷头调节座上设有供销轴螺钉穿过的长孔,所述的长孔的 直径与销轴螺钉的直径相匹配,所述的长孔的方向与喷头喷孔的 排列方向相同。
优选的是, 所述的长孔设置在喷头调节座沿喷头喷孔的排 列方向的中间位置。
优选的是, 在所述的喷头底板上设有用于喷头调节座的横 向调节的微分头和纵向调节的微分头。
优选的是, 所述的横向调节的微分头设置在横向固定座上, 所述的横向固定座设置在喷头底板上;
所述的纵向调节的微分头设置在角度调节座上, 所述的角 度调节座设置在喷头底板上。 优选的是, 所述的微分头的调节精度为 0.01mm。
本发明的另一个目的是提供一种上述的喷头无缝拼接机构 的使用方法, 包括如下步骤:
1 )位于拼接平台一侧的喷头作为基准喷头, 置于显微装置 下,检测起始端喷孔 AO和末端喷孔 B0的坐标值 AO ( xoi, yoi ), BO ( x02, y02 ) ;
此时, 起始端喷孔 AO和末端喷孔 BO的连线与横向轴线 (x) 之间的夹角为 θ。, 由于
Figure imgf000004_0001
( ΧΜ-ΧΜ ) , 从而可以计 算出 θ0;
2 )将待调整的喷头置于显微装置下, 检测起始端喷孔 A1 和末端喷孔 B1的坐标值 A1 ( Χι1, yil ) , Bl ( x12, y12 ) ;
此时,起始端喷孔 A 1和末端喷孔 B 1的连线与横向轴线 (X) 之间的夹角为 根据
Figure imgf000004_0002
( Χ12-Χιι ) , 可以计算出 θι;
3 )令 =θ!-θ0, 计算出待调整的喷头与基准喷头之间的 夹角 的值, 则待调整的喷头的横向的调整量为 A x=Xll-Xo2;
则待调整的喷头的纵向的调整量为 A y-Lxsin^^), 其中 L 为 A1至销轴螺钉中心沿横向的长度, 进行横向和纵向的调整, 其中, L=0.5xL(A0B0) X Cos0。; 式中, L(A0B0)为喷头喷孔的长 度, 为喷头厂家设定的定值;
4 )对下一个待调整的喷头重复步骤 2-3。
在根据本发明的一个实施例中, 还可以把经过调整的喷头 作为基准喷头。优选地是, 所述经过调整的喷头与所述下一个待 调整的喷头相邻。
本发明的优点如下:
本发明的喷头的无缝拼接机构, 在显微镜下放大, 显微镜 识别每个喷孔的坐标, 从而找到每个喷头的坐标, 无缝拼接机构 通过本身结构的可调性, 坐标的可计算性, 人为的数字化输入需 要调整的数值, 从而将调节量化, 实现真正意义的无缝拼接。
另外, 本发明的无缝拼接机构的成本低廉(总成本在 3000 元左右), 远比市场上拼接平台价格低, 例如松下公司生产无缝 拼接平台的价格在 30万左右。
另外, 本发明的无缝拼接机构的在完成相同数量的喷头的 调整所用的时间是现有喷头无缝拼接机构所用时间的 1/6, 提高 了拼接调整的效率。 附图说明
图 1为本发明实施例 1中喷头无缝拼接机构的俯视图。
图 2为本发明实施例 1 中喷头无缝拼接机构的长孔的俯视 图。
图 3为本发明实施例 1中喷头无缝拼接机构的立体图。
图 4为本发明实施例 1 中喷头无缝拼接机构中喷头的横向 调微分头结构示意图。
图 5为本发明实施例 1 中喷头无缝拼接机构中喷头的角度 调微分头结构示意图。
图 6为本发明实施例 1 中喷头无缝拼接机构中喷头的横向 调整量的计算示意图。
图 7为本发明实施例 1 中喷头无缝拼接机构中喷头的纵向 调整量的计算示意图。
图 8为本发明的喷头无缝拼接机构的喷头拼接测试报告。 其中:
1.喷头; 2.喷头调节座; 3.喷头底板; 4.横向调节块; 5.角度 调节座; 6.销轴调节螺钉; 7.横向固定座; 8.微分头; 9.长孔 具体实施方式
为使本领域技术人员更好地理解本发明的技术方案, 下面 结合附图和具体实施方式对本发明作进一步详细描述。 实施例 1
如图 1-5所示, 本实施例提供一种喷头无缝拼接机构。
本实施例以 xaarlOOl喷头为例进行介绍, 对于其他型号的 喷头本发明的喷头无缝拼接机构只需跟该类型喷头相匹配即可。
XaarlOOl 的喷头共有 1#一1001#喷孔, 喷孔打印宽度是
70.5mm„
如图 1所示, 喷头无缝拼接机构包括: 6个喷头 1在横向上 ( X轴向)错位排列为两行, 此时每个喷头的喷孔也是在横向上 排列 (X轴向) , 与上述的横向垂直的方向定义为的纵向 (y轴 向) ;
用于检测喷头喷孔坐标的显微装置 (图上未示出) , 该显 微装置包括显微镜, 该显微镜在其显微视野内具有坐标系(该坐 标系与上述的 X轴向和 y轴向的方向相同), 能在该坐标系内检 测喷头喷孔坐标;
用于固定喷头 1的喷头调节座 2,喷头 1通过螺纹连接固定 在喷头调节座 2上;
与喷头调节座 2可调整地连接的喷头底板 3。
优选的, 喷头调节座 2与喷头底板 3用销轴螺钉 6连接, 如图 2所示, 喷头调节座 2上设有供销轴螺钉 6穿过的长孔 9。
优选的, 长孔 9的直径与销轴螺钉 6的直径相匹配, 长孔 9 的方向与喷头喷孔的排列方向相同。 在对喷头进行横向调整时, 喷头调节座 2相对于喷头底板 3横向移动,销轴螺钉在上述的长 孔 9的长度方向移动, 保证喷头调节座 2与喷头底板 3连接; 在 对喷头 1进行纵向调整时,喷头调节座 2可以相对喷头底板 3转 动,销轴螺钉只需转动就可保证喷头调节座 2与喷头底板 3连接。 优选的, 销轴为(p3h6, 长孔 9为 3H7, 相互配合, 即可保证喷 头调节座 2与喷头底板 3在横向上相对移动, 纵向上相对转动。
如图 3 所示, 为了将喷头横向、 纵向的调节量量化, 在喷 头底板 3上设有横向、 纵向的微分头 8。
优选的, 如图 4所示, 调节横向位置的微分头 8 固定在横 向固定座 7上, 该横向固定座 7固定在喷头底板 3上。
若横向固定座 7的高度不够, 可以在喷头座调节座 2上连 接一个横向调节块 4, 通过移动喷头调节座 2至调节横向位置的 微分头 8的轴头处进行喷头的横向调整。 优选的, 微分头 8最小 刻度 0.01mm。
优选的, 如图 5所示, 调节角度的微分头 8 固定在角度调 节座 5上, 角度调节座 5固定在喷头底板 3上, 通过移动喷头调 节座 2至调节纵向位置的微分头 8 的轴头处进行喷头的纵向调 整。 优选的, 微分头 8的最小刻度 0.01mm。
具体地, 上述喷头无缝拼接机构用于拼接 xaarlOOl喷头为 例, 介绍其调节方法, 所述调节方法包括:
1 )将位于拼接平台一侧的喷头作为基准喷头, 优选的, 如 图 1所示, 以最左侧的喷头为基准喷头, 置于显微装置下, 检测 起始端喷孔 AO和末端喷孔 B0的坐标值 Ai xd, yoi ), B0 ( x02, yoi ) ;
此时, 如图 6所示, 起始端喷孔 AO和末端喷孔 B0的连线 与横向轴线 (x)之间的夹角为 θο, 由于 taneo y^-y^ 从而可以计算出 θ0;
2 )将待调整的喷头 (错位相邻的喷头) 置于显微装置下, 检测起始端喷孔 A1和末端喷孔 B1的坐标值 Al ( xii, yn ) ,
Bl ( Xl2, yi2 ) ;
此时,起始端喷孔 A 1和末端喷孔 B 1的连线与横向轴线 (X) 之间的夹角为 根据
Figure imgf000008_0001
( Χ12-Χιι ) , 可以计算出 θι;
3 )令 =θ!-θ0, 计算出待调整的喷头与基准喷头之间的 夹角 的值, 如图 6所示, 待调整的喷头 (以 A1的作为移动 点) 的横向的调整量为 Δ
如图 7所示, A1至销轴螺钉 6中心 ( C点 ) 沿横向的长度 为 L, Al和 Bl的连线以轴螺钉 6中心为旋转, 则待调整的喷头 的纵向的调整量为△
Figure imgf000008_0002
, 其中, L=0.5xL(A0B0) x Cos90; 式中, L(AOBO)为喷头喷孔的长度, 为喷头厂家设定的定 值;
将上述的横向调整量△ X和纵向调整量△ y用横向微分头和 纵向微分头量化后, 调整喷头调节座的横向调整量 X和纵向调 整量 A y, 即可完成待调整的喷头的调整使两个喷头的喷孔 B0 和 A1在 X轴方向上的坐标相同, 喷孔的连线 (A0B0和 A1B1 ) 相互平行。
优选的,横向位置的微分头 8的调节量设为横向调整量△ x, 将喷头调节座(2 )移动至调节横向位置的微分头 8的轴头处, 完成横向调节。
将调节角度的微分头 8刻度设为 Ay, 转动喷头调节座至调 整后的微分头 8的轴头处, 拧紧销轴调节螺钉 6, 固定喷头调节 座 2的螺钉, 完成喷头的横向和纵向调节, 从而完成无缝拼接。
4 )对于下一个待调整的喷头重复步骤 2-3。
最终, 完成所有喷头的调整, 实现喷头的无缝拼接。
应用上述的方法对 xaarlOOl喷头进行无缝拼接的结果见图 8, 由图 8可见, 以 0#喷头为基准(单位: 微米) , 各个喷头间 隙最大在 0.014mm,最小在 0.001mm,几乎重合。根据 xaarlOOl 喷头分辨率 360dpi, 一线 =25.4/360=0.0705mm, 即使 720dpi, 一线 =25.4/720=0.035mm。拼接精度最大也就是 720dpi (高分辨率) 一线的 40% ( 0.014mm/0.035mm ), 而高分辨率(720dpi )高质 量的套线精度在半线, 即 0.0175mm。
同 理 , 角 度误差最大值 0.000252°, 横向误差 =Lxsin9~Lx9=35.2mmx0.000252ox^l80~0.155 微米, 该值近似 可以忽略。
从以上测试结果看, 该套机构很好的完成了喷头无缝拼接 的目标, 并且该套机构成本低廉 (总成本在 3000元左右) , 远 比市场上拼接平台价格低,例如松下公司生产价格在 30万左右。
同时, 在完成相同数量的喷头的调整所用的时间是现有喷 头无缝拼接机构所用时间的 1/6, 提高了拼接调整的效率。
本实施例的喷头的无缝拼接机构, 在显微镜下放大, 显微 镜识别每个喷孔的坐标, 从而找到每个喷头的坐标, 无缝拼接机 构通过本身结构的可调性, 坐标的可计算性, 人为的数字化输入 需要调整的数值, 从而将调节量化, 实现真正意义的无缝拼接。
在上述实施例中, 基准喷头可以始终采用位于拼接平台一 侧的喷头, 也可以把经过调整的喷头作为新的基准喷头。 例如, 在根据本发明的另一个实施例中,把与下一个待调整的喷头相邻 的、 已经调整过的喷头作为新的基准喷头。 可以理解的是, 以上实施方式仅仅是为了说明本发明的原 理而采用的示例性实施方式, 然而本发明并不局限于此。 对于本 领域内的普通技术人员而言,在不脱离本发明的精神和实质的情 况下, 可以做出各种变型和改进, 这些变型和改进也视为本发明 的保护范围。

Claims

1. 一种喷头无缝拼接机构, 其特征在于, 所述的拼接机构包 括: 用于检测喷头喷孔坐标的显微装置;
用于固定喷头的喷头调节座;
与所述的喷头调节座可调整地连接的喷头底板。
2. 如权利要求 1所述的喷头无缝拼接机构, 其特征在于, 所 述的喷头调节座可沿所述的喷头喷孔的排列方向在喷头底板上 移动。
3. 如权利要求 1所述的喷头无缝拼接机构, 其特征在于, 所 述的喷头调节座可在喷头底板上旋转。
4. 如权利要求 1-3任一所述的喷头无缝拼接机构, 其特征在 于, 所述的喷头调节座与喷头底板用销轴螺钉连接, 所述的喷头 调节座上设有供销轴螺钉穿过的长孔,所述的长孔的直径与销轴 螺钉的直径相匹配,所述的长孔的方向与喷头喷孔的排列方向相 同。
5. 如权利要求 4所述的喷头无缝拼接机构, 其特征在于, 所 述的长孔设置在喷头调节座沿喷头喷孔的排列方向的中间位置。
6. 如权利要求 1-3任一所述的喷头无缝拼接机构, 其特征在 于,在所述的喷头底板上设有用于喷头调节座的横向调节的微分 头和纵向调节的微分头。
7. 如权利要求 6所述的喷头无缝拼接机构, 其特征在于, 所 述的横向调节的微分头设置在横向固定座上,所述的横向固定座 设置在喷头底板上;
所述的纵向调节的微分头设置在角度调节座上, 所述的角 度调节座设置在喷头底板上。
8. 如权利要求 7所述的喷头无缝拼接机构, 其特征在于, 所 述的微分头的调节精度为 0.01mm。
9. 一种如权利要求 1-8任一所述的喷头无缝拼接机构的调节 方法, 其特征在于, 包括如下步骤:
1 )将位于拼接平台一侧的喷头作为基准喷头, 置于显微装 置下,检测起始端喷孔 AO和末端喷孔 B0的坐标值 A0( xoi, yoi ), BO ( x02, y02 ) ;
此时, 起始端喷孔 AO和末端喷孔 BO的连线与横向轴线 (x) 之间的夹角为 θ0, 根据公式 tan0o=(yO2-yol)/ ( xO2-xol )计算出 θ0;
2 )将待调整的喷头置于显微装置下, 检测起始端喷孔 A1 和末端喷孔 B1的坐标值 A1 ( Χι1, yil ) , Bl ( x12, y12 ) ;
此时,起始端喷孔 A 1和末端喷孔 B 1的连线与横向轴线 (X) 之间的夹角为 Θ ,根据公式 tan9i=(yi2-yn)/ ( Xii- n )计算出 Θ
3 )令 =θ!-θ0, 计算出待调整的喷头与基准喷头之间的 夹角 的值, 则待调整的喷头的横向的调整量为 A x-xn-xoz;
则待调整的喷头的纵向的调整量为 A y-Lxsin^^), 其中 L 为起始端喷孔 A1至销轴螺钉中心沿横向的长度, 进行横向和纵 向的调整; 4 )对下一个待调整的喷头重复步骤 2-3。
10. 如权利要求 9 所述的喷头无缝拼接机构的调节方法, 其 特征在于, 所述步骤 4 )还包括:
把经过调整的喷头作为基准喷头。
11. 如权利要求 10所述的喷头无缝拼接机构的调节方法, 其 特征在于, 所述经过调整的喷头与所述下一个待调整的喷头相 邻。
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