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1. 发明申请

WO2003006243A1 SCREEN PRINTING APPARATUS 审中-公开
标题翻译：丝印印刷机
公开(公告)号：WO2003006243A1
公开(公告)日：2003-01-23
申请号：PCT/GB2002/003175
申请日：2002-07-10
申请人： DEK INTERNATIONAL GMBH , MCEVOY, Ian, Patrick , SQUIBB, Frank, Norman
发明人： MCEVOY, Ian, Patrick , SQUIBB, Frank, Norman
IPC分类号： B41F15/08
CPC分类号： B41F15/0818 , B41F15/26 , B41P2215/114 , H05K3/1216
摘要： A screen printing apparatus for and method of printing deposits of material onto a workpiece (3), the apparatus comprising: an inspection station (1) for determining a positional relationship of features on upper and lower surfaces of the workpiece, the inspection station comprising: an imaging system for determining a positional relationship of features on upper and lower surfaces of the workpiece, the imaging system comprising at least two spaced imaging units (15, 17) for imaging features on an upper surface of the workpiece, at least two spaced imaging units (19, 21) for imaging features on a lower surface of the workpiece, and a processing unit for determining a positional relationship of the imaged features on the upper and lower surfaces of the workpiece ; and a printing station (5) for printing deposits of material onto the workpiece, the printing station comprising: a workpiece support assembly (41) comprising a workpiece support member (43) for supporting the workpiece at a printing zone; a printing screen (5) disposed above the workpiece support member; a transport mechanism (27) for transporting the workpiece to the printing zone; and an alignment system for aligning the upper surface of the supported workpiece and the printing screen in relation to one another, the alignment system comprising at least two spaced workpiece imaging units (49, 51) for imaging features on a lower surface of the workpiece, and an alignment stage for moving the workpiece support member and the printing screen in relation to one another such as to align the upper surface of the workpiece and the printing screen in relation to one another by reference to positions of the imaged features on the lower surface of the workpiece as imaged at the printing zone and the positional relationship of the imaged features on the upper and lower surfaces of the workpiece as determined at the inspection zone.
摘要翻译：一种用于将材料沉积物印刷到工件（3）上的丝网印刷设备和方法，所述设备包括：检查台（1），用于确定工件的上表面和下表面上的特征的位置关系，所述检查站包括：用于确定所述工件的上表面和下表面上的特征的位置关系的成像系统，所述成像系统包括用于对所述工件的上表面上的特征进行成像的至少两个间隔开的成像单元（15,17），至少两个间隔成像用于在工件的下表面上成像特征的单元（19,21），以及用于确定工件的上表面和下表面上的成像特征的位置关系的处理单元; 以及用于将材料沉积到所述工件上的印刷站（5），所述印刷站包括：工件支撑组件（41），其包括用于在印刷区域处支撑所述工件的工件支撑构件（43）设置在所述工件支撑构件上方的印刷丝网; 用于将工件运送到打印区的传送机构（27）; 以及对准系统，用于相对于彼此对准所支撑的工件的上表面和所述印刷屏幕，所述对准系统包括用于对所述工件的下表面上的特征进行成像的至少两个间隔开的工件成像单元（49,51）以及用于相对于彼此移动工件支撑构件和印刷屏幕的对准台，以便通过参考下表面上的成像特征的位置来相对于彼此相对地对准工件和印刷屏幕的上表面在打印区域成像的工件以及在检查区域确定的在工件的上表面和下表面上的成像特征的位置关系。

2. 发明申请

WO9842510A3 VIEWING AND IMAGING SYSTEMS 审中-公开
标题翻译：查看和成像系统
公开(公告)号：WO9842510A3
公开(公告)日：1998-11-05
申请号：PCT/GB9800696
申请日：1998-03-09
申请人： DEK PRINTING MACHINES LTD , SQUIBB FRANK NORMAN
发明人： SQUIBB FRANK NORMAN
IPC分类号： G03F9/00 , H05K1/02 , H05K3/12 , B41F33/00 , B41F15/08
CPC分类号： G03F9/00 , H05K1/0266 , H05K3/1216
摘要： Viewing and imaging systems are provided for use in screen printers for example. In one aspect, in a viewing apparatus for location between the screen and board in a screen printer, light from first and second light sources (23, 24), for illuminating the screen (2) and board (1) respectively, is introduced into the return light channel of the apparatus, and a light barrier (39) is provided to inhibit cross-talk between light from the two sources introduced into the channel. In another aspect, in a video probe for imaging regions of the screen and/or board in a screen printer, lighting means is controlled to generate pulses of light. The lighting means is controlled to generate light pulses repeatedly at a sufficient rate to produce a substantially continuous picture when the video signal is displayed. The pulses are preferably synchronised with the video signal and generated at the video frame rate. In a further aspect, imaging apparatus for imaging regions of a screen and/or board in a screen printer includes a plurality of lighting means which are controlled to generate respective light pulses of different durations, the temporal mid-points of pulses from different lighting means being coincident.

3. 发明申请

WO1995014575A1 ALIGNMENT SYSTEMS 审中-公开
标题翻译：对齐系统
公开(公告)号：WO1995014575A1
公开(公告)日：1995-06-01
申请号：PCT/GB1994002517
申请日：1994-11-16
申请人： DEK PRINTING MACHINES LIMITED , SQUIBB, Frank, Norman
发明人： DEK PRINTING MACHINES LIMITED
IPC分类号： B41F33/00
CPC分类号： H04N5/2256 , B41F33/0081 , H05K1/0266 , H05K3/1216 , Y10S101/36
摘要： Apparatus is provided for aligning two objects (1, 2), such as a board and screen in a screen printer, each having at least one reference mark (6a, 7a) on a surface thereof, whereby alignment of the objects is indicated by alignment of corresponding reference marks on the surfaces of the objects. The apparatus comprises support means for supporting the objects in use with the said surfaces facing one another, and imaging means (20), mounted for movement between the said surfaces in use, for acquiring, on a single imaging surface thereof, simultaneous images of respective areas of the surfaces of the objects, which areas contain corresponding reference marks. The apparatus includes control means (4, 8) for determining the locations of the reference marks in the images and determining therefrom the extent of misalignment of the objects, and means (3), responsive to the control means, for adjusting the relative positions of the objects to bring the objects into alignment. A method for aligning two objects, and imaging means for use in aligning two objects, are also provided.
摘要翻译：提供了用于对准丝网印刷机中的两个物体（1,2），诸如板和屏幕的每个在其表面上具有至少一个参考标记（6a，7a）的装置，从而通过对准来指示对象的对准在物体表面上的相应参考标记。该装置包括支撑装置，用于支撑使用中的物体与彼此面对的所述表面;以及成像装置（20），安装成用于在所述使用的所述表面之间移动，用于在其单个成像表面上获取各自的相应图像对象表面的区域，哪些区域包含相应的参考标记。该装置包括用于确定图像中的参考标记的位置的控制装置（4,8），并从其中确定物体的不对准程度，以及响应于控制装置的装置（3），用于调整对象的相对位置物体使物体保持一致。还提供了用于对准两个物体的方法和用于对准两个物体的成像装置。

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