公开(公告)号：US06374729B1

公开(公告)日：2002-04-23

申请号：US09460053

申请日：1999-12-13

申请人： Dennis G. Doyle

发明人： Dennis G. Doyle

IPC分类号： B65G4722

CPC分类号： H05K3/1216 ,  B41F15/0881

摘要： A method and apparatus is provided for transporting circuit boards in a screen printer. In embodiments of the present invention, a transportation system is provided for a printer that prints material on a substrate. The transportation system has the ability to independently move substrates from one position to another within the printer without moving other substrates contained within the transportation system. In one embodiment, the transportation system includes a conveyor system and a plurality of lifters that lift substrates off of the conveyor system to prevent at least one substrate from moving when other substrates are moved by the conveyor system. In another embodiment, the transportation system includes a conveyor system and a plurality of retractable pins, that are individually controllable to be raised above the conveyor system to contact at least one substrate on the conveyor system and prevent the substrate from moving when other substrates are moved by the conveyor system.

摘要翻译： 提供了一种用于在丝网印刷机中传送电路板的方法和装置。 在本发明的实施例中，为在基板上打印材料的打印机提供了一种输送系统。 运输系统具有在基板内独立地移动基板从打印机内的一个位置到另一个位置的能力，而不会移动运送系统内的其他基板。 在一个实施例中，运输系统包括输送机系统和多个提升器，其将基板从输送机系统上提升，以防止当其它基板由输送机系统移动时至少一个基板移动。 在另一个实施例中，输送系统包括输送机系统和多个可缩回销，其可独立控制以在输送机系统上方升高以接触输送机系统上的至少一个基板，并且当其它基板移动时防止基板移动 通过输送系统。

公开(公告)号：US6066206A

公开(公告)日：2000-05-23

申请号：US920121

申请日：1997-08-26

申请人： Dennis G. Doyle ,  Steven W. Hall ,  Gary T. Freeman

发明人： Dennis G. Doyle ,  Steven W. Hall ,  Gary T. Freeman

IPC分类号： B41F15/40 ,  B41F15/08 ,  B41F15/44 ,  H05K3/12 ,  H05K3/34 ,  B05C1/00 ,  B05B15/04 ,  B05C3/00 ,  B05D5/12

CPC分类号： H05K3/1216

摘要： A dual track stencil system includes a first set of rails and a second set of rails, each of the rails being independently controlled for allowing for independent movement of circuit boards through the stencil system for processing. The stencil system includes a working area at which the circuit boards are stenciled and includes a stencil having two patterns formed thereon. In one embodiment, the stencil system includes a solder dispensing system for dispensing solder paste onto the stencil.

摘要翻译： 双轨模板系统包括第一组轨道和第二组轨道，每个轨道被独立地控制，以允许电路板通过模板系统的独立移动进行处理。 模板系统包括工作区域，电路板在其上被模版，并且包括其上形成有两个图案的模版。 在一个实施例中，模板系统包括用于将焊膏分配到模板上的焊料分配系统。

公开(公告)号：US5873939A

公开(公告)日：1999-02-23

申请号：US802934

申请日：1997-02-19

申请人： Dennis G. Doyle ,  Steven W. Hall

发明人： Dennis G. Doyle ,  Steven W. Hall

IPC分类号： H05K3/12 ,  B05C1/00 ,  B05C17/04

CPC分类号： H05K3/1216

摘要： A dual track stencil system includes a first set of rails and a second set of rails, each of the rails being independently controlled for allowing for independent movement of circuit boards through the stencil system for processing. The stencil system includes a working area, at which the circuit boards are stenciled. A stencil, having two patterns, each aligned with a respective working area of each track is suspended above the dual track system. A solder dispensing unit including a squeegee arm is suspended above the stencil, parallel to and centered between the two tracks. During operation, a circuit board enters the working area, is raised to engage with the stencil, and the squeegee arm traverses that portion of the stencil pattern currently engaging the board, thereby dispensing solder through the pattern and stenciling the board. The stencil system operates to process two boards on one track before advancing to the second track for processing another pair of boards. The rails of the dual track system are advantageously moveable to allow for variable width boards or operation of the system in single track mode. The stencil system design may be adapted to make the dual track system a recirculating track, capable of supporting pallets for transport and printing of delicate materials. In addition, the stencil system design may be adapted for processing boards in parallel, where the boards are received simultaneously or staggered, placed at a stencil position, and printed with one stroke of the squeegee head.

摘要翻译： 双轨模板系统包括第一组轨道和第二组轨道，每个轨道被独立地控制，以允许电路板通过模板系统的独立移动进行处理。 模板系统包括工作区域，电路板在其上被模板。 具有两个图案的模板，每个与每个轨道的相应工作区域对准，并被悬挂在双轨道系统的上方。 包括刮板臂的焊料分配单元悬挂在模板上方，平行于两个轨道并居中。 在操作期间，电路板进入工作区域，升高以与模板接合，并且刮板臂横过当前与板接合的模板图案的那部分，从而通过图案分配焊料并模板。 模板系统用于在前进到第二轨道之前处理一个轨道上的两个板，以处理另一对板。 双轨道系统的轨道有利地可移动以允许可变宽度板或单轨道模式下的系统的操作。 模板系统设计可以适于使双轨道系统成为循环轨道，其能够支撑用于运输和打印精细材料的托盘。 此外，模板系统设计可以适于平行地处理板，其中板被同时或交错地接收，放置在模板位置，并且用刮刀头的一个冲程打印。