Vista Machine Overview.pdf - 第11页
MACHI NE O VERVIEW SOFTWARE INITIALIZATION Chapter Issue 1 Sep 02 Technical Reference Manual 3.11 SOFTW AR E INITIALIZA TION
MACHINE OVERVIEW
MODULE OVERVIEWS
3.10 Technical Reference Manual Chapter Issue 1 Sep 02
Squeegee Module The function of the squeegee module is to apply the solder paste through the
screen image onto the board in a controlled manner. Squeegee height and
downward pressure is monitored during the print stroke to optimize the print
quality. The paste knead sequence is performed by the squeegee module
utilizing the print carriage.
Screen Alignment
Module
The screen alignment module enables fine adjustment of the print screen to
achieve optimum screen to board alignment prior to the print cycle. Actuators
move the print screen in the X, Y and theta planes to nullify the misalignment
error signal from the vision system. The print screen is clamped into place
during the print cycle.
Print Carriage
Module
The print carriage provides a means of support for the Squeegee or ProFlow
units, it enables these mechanisms to be moved across the printable image in
the Y direction. The print carriage also houses electrical break-outs and the
optional temperature and humidity sensor.
Rail System
Module
The rail system module is a programmable width conveyor system, utilized to
transport the board through the machine and security of the board during the
print stroke. The rail system is positioned by the rising table, during the print
stroke.
Figure 3-8 Machine Plan View
MACHINE OVERVIEW
SOFTWARE INITIALIZATION
Chapter Issue 1 Sep 02 Technical Reference Manual 3.11
SOFTWARE INITIALIZATION
MACHINE OVERVIEW
MACHINE INITIALIZATION
3.12 Technical Reference Manual Chapter Issue 1 Sep 02
MACHINE INITIALIZATION