00196962-04-BA-SX12-V2-EN.pdf - 第135页
User manual SIPLACE SX1/SX2 3 Technical data and assemblies From software version SC 706.1 SP1 Version 10/2014 3.7 PCB conveyor system 135 3.7.5 Definition of PCB wa rp age 3.7.5.1 PCB warp age on the conveyor PCB warpag…
3 Technical data and assemblies User manual SIPLACE SX1/SX2
3.7 PCB conveyor system From software version SC 706.1 SP1 Version 10/2014
134
3.7.3.4 Synchronous transport mode
In synchronous mode, two PCBs of the same size are moved into the placement position at the
same time. They must be processed as a common panel.
This makes it possible to process the top and bottom sides of a board in one line. The time needed
to transport the board is reduced as two boards are always transported at the same time. It also
ensures better utilization of the nozzle configuration.
PCBs on conveyor tracks 1 and 2 are moved synchronously onto the conveyor sections (i.e. the
conveyors are controlled synchronously, but independently of one another). The components to
be placed on conveyor tracks 1 and 2 must be organized into a panel via two subpanels.
If only one conveyor lane is occupied at the beginning of placement, this single use of the con-
veyor lane will be identified as "not to be placed".
If the dual conveyor is operated in synchronous mode, the ‘PCB whispering down the line’ option
is deactivated. The "Global bad fiducial" option cannot be used.
3.7.3.5 I-Placement
In addition to the synchronous and asynchronous conveyor modes, the placement concept "I-
Placement" has now been introduced. In this case, both placement heads operate in one place-
ment area at the same time, placing their own boards fully independently of one another. In normal
mode, the placement heads operate in alternating placement mode: while the placement head in
one placement area places a board, the other placement head picks up components from the
feeder module. In the case of "I-Placement", the placement heads do not have this waiting period,
which increases the placement performance.
3.7.4 Controlling and width adjustment
3.7.4.1 Controlling using the Single Functions menu
The online help contains information on controlling the PCB conveyor system and on the Single
Functions menu.
3.7.4.2 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.
User manual SIPLACE SX1/SX2 3 Technical data and assemblies
From software version SC 706.1 SP1 Version 10/2014 3.7 PCB conveyor system
135
3.7.5 Definition of PCB warpage
3.7.5.1 PCB warpage on the conveyor
PCB warpage across the direction of travel max. 1 % of the PCB diagonal, but not exceeding 2 mm
3
Fixed clamped edge
Movable clamping device
Printed circuit board
Conveyor side wall
3 Technical data and assemblies User manual SIPLACE SX1/SX2
3.7 PCB conveyor system From software version SC 706.1 SP1 Version 10/2014
136
PCB warpage in the direction of transport + PCB thickness < 5.5 mm. Bending up of board edge
max. 2.5 mm.
3
3
Fixed clamped edge
Conveyor belt
PCB transport direction
Front board edge
Front board edge
Left conveyor belt
Right conveyor belt
PCB transport direction