00196693-03_UM_SX4DX4_SR706_EN.pdf - 第140页
3 Technical data and assemblies User Manual SIPLACE SX4/DX4 3.7 PCB conveyor system From software version SC.706.xx Version 06/2012 EN 140 3.7.6 Definition of PCB warp age 3.7.6.1 PCB warp age on the conveyor PCB warpage…
User Manual SIPLACE SX4/DX4 3 Technical data and assemblies
From software version SC.706.xx Version 06/2012 EN 3.7 PCB conveyor system
139
3.7.5 Controlling and width adjustment
3.7.5.1 Controlling using the Single Functions menu
The online help contains information on controlling the PCB conveyor system and on the Single
Functions menu.
3.7.5.2 Automatic width adjustment
When the command is received, the conveyor belts are set to the desired width. Different widths
are possible for a dual conveyor.
See the Online Help for detailed information about changing the conveyor track width.
3 Technical data and assemblies User Manual SIPLACE SX4/DX4
3.7 PCB conveyor system From software version SC.706.xx Version 06/2012 EN
140
3.7.6 Definition of PCB warpage
3.7.6.1 PCB warpage on the conveyor
PCB warpage across the direction of travel max. 1 % of the PCB diagonal, but not exceeding 2 mm
3
PCB warpage in direction of travel + PCB thickness < 5.5 mm
3
Fixed clamped edge
Movable clamping device
Printed circuit board
Conveyor side wall
Fixed clamped edge
Conveyor belt
Printed circuit board
PCB transport direction
5.5 mm
User Manual SIPLACE SX4/DX4 3 Technical data and assemblies
From software version SC.706.xx Version 06/2012 EN 3.7 PCB conveyor system
141
3.7.6.2 PCB warpage during placement
A warpage of 2 mm can lead to problems focussing on local fiducials and ink spots in the middle
of the PCB. The digital camera's focus is 2 mm. When all the tolerances are taken into account,
this value is reduced to 1.5 mm. Also note that the component height is reduced by the warpage.
3
3
PCB warpage down, max. 0.5 mm
3
Use magnetic pin supports to achieve this value.
Movable clamping device
Fixed clamped edge
Printed circuit board
Conveyor side wall
Printed circuit board
Magnetic pin
support
Movable clamping device
Fixed clamped edge
Conveyor side wall
0.5 mm