00196044-05 - sg x und x4i fse_en.pdf - 第346页
Collect, Pick and Place Head (CPP) Vacuum System Picking Up Components S tudent Guide (FSE) SI PL ACE X Series and X4I Collect, Pick and Place Head (CPP) Edition 01/2 009 EN 346 8.7.2 Picking Up Component s Before the st…
Collect, Pick and Place Head (CPP)
Vacuum System Function Vacuum System
Student Guide (FSE) SIPLACE X Series and X4I
Edition 01/2009 EN Collect, Pick and Place Head (CPP)
345
8.7.1 Vacuum System Function
The pneumatic distributor (1) supplies the pressure control valve (2), the holding circuit (3) and the
return cylinder with 4.5 bar compressed air.
The compressed air is fed directly through the holding circuit (3) to the valve terminal (6). There it is
distributed into 12 channels.
Each channel in the holding circuit can be separately opened or closed with a valve (7).
The compressed air is fed from the valve terminal to the holding circuit, through the 12 channels. The
vacuum for the holding circuit of all 12 segments is generated there via 12 venturi nozzles.
The vacuum is fed from the holding circuit via the star carrier (5) to the nozzle segment (4).
The holding circuit sensor is located in the CPP head cover (8). The holding circuit sensor can be
used to measure the vacuum of any segment which is in the 12.00 position.
Collect, Pick and Place Head (CPP)
Vacuum System Picking Up Components
Student Guide (FSE) SIPLACE X Series and X4I
Collect, Pick and Place Head (CPP) Edition 01/2009 EN
346
8.7.2 Picking Up Components
Before the star rotates into the pickup position, the relevant valve is switched on via the valve terminal.
Vacuum from the holding circuit is now present at the nozzle.
Once the star has reached the pickup position, the holding circuit vacuum is strengthened via the
pressure control valve and the component can be picked up.
8.7.3 Placing Components
After the component has been picked up, the
component is held on the nozzle with the help
of the vacuum from the holding circuit.
If the star is in the placement position and the
Z down sensor is enabled, the pressure
control valve will switch over to air bast. This
eliminates the holding circuit vacuum and an
air blast of approx. 200 mbar is present at the
nozzle.
The switch on time for max. vacuum/air blast
depends on the settings programmed in the
programming system.
Once the Z axis has reached the top position,
the star continues to turn. The relevant valve is
now closed on the valve terminal. This saves
compressed air!
Collect, Pick and Place Head (CPP)
Placing Components Room for Your Sketches and Notes
Student Guide (FSE) SIPLACE X Series and X4I
Edition 01/2009 EN Collect, Pick and Place Head (CPP)
347
8.8 Room for Your Sketches and Notes