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8 Component Supply S IPLACE 80S/F/G User’s Manual 8.6 Wafflepack Changer Edition 07/97 from Software Version SR.010.xx 8 - 20 8.6.2 General The use of flatpack ICs is gaini ng more and more importanc e in the manufacture…
SIPLACE 80S/F/G User’s Manual 8 Component Supply
Edition 07/97 from Software Version SR.010.xx 8.6 Wafflepack Changer
8 - 19
8.6 Wafflepack Changer
8.6.1 Overview
Fig. 8.6.1 Wafflepack changer on SIPLACE 80F3
- Key to Fig. 8.6.1
➀
Wafflepack changer on location 1
➁
Wafflepack changer
➂
Location 2
➃
IC placement head
➄
Revolver head
8 Component Supply SIPLACE 80S/F/G User’s Manual
8.6 Wafflepack Changer Edition 07/97 from Software Version SR.010.xx
8 - 20
8.6.2 General
The use of flatpack ICs is gaining more and more importance in the manufacture of printed circuit boards.
These components have now reached the point where they are almost always delivered on magazine trays
(wafflepack magazines).
The space taken up by magazine trays is however relatively high when compared with the components den-
sity. In addition, due to their low holding capacity, the wafflepack magazines must frequently be changed and if
this has to be done by hand this necessarily involves interrupting the placement process.
But when a wafflepack changer is used there is no time lost unnecessarily in the storing and automatic chang-
ing of the wafflepack magazines. Programmed access to up to 28 freely selectable wafflepack magazines also
increases the range of available components.
NOTE
The wafflepack changer is located on the lefthand side of the SIPLACE 80 F table.
The wafflepack changer does not require the entire width of the components table. On this side of the table 10
locations remain free which can be used for the 20 x 8 mm tape module, for example.
SIPLACE 80S/F/G User’s Manual 8 Component Supply
Edition 07/97 from Software Version SR.010.xx 8.6 Wafflepack Changer
8 - 21
8.6.3 Principle of the Wafflepack Changer
With the wafflepack changer on the SIPLACE 80 F it is possible to hold up to 28 wafflepack magazines and to
change these fully automatically. The magazine carriers (level) for the wafflepack magazines are numbered in
sequence from bottom to top, with the lowest number at the bottom (1 - 28).
The magazine storage unit travels vertically until the level selected lies with in the travel range of the horizontal
axis. The horizontal axis then removes the magazine carriers from the level and transports them into the
access area of the placement head.
The following Figure 8.6.2 shows the basic principle behind the wafflepack changer.
Fig. 8.6.2 Principle of the waffle-pack changer
- Key to Fig. 8.6.2
➀
Magazine storage unit
➁
Lift
➂
Horizontal axis
8.6.3.1 Sequence of Functions
●
Requirements:
Flatpack magazines with the corresponding components are defined in the set-up.
After set-up conversion the magazine storage unit will make a reference run.
The board camera approaches the fiducials which are marked on a strip (see Fig. 9.7.3).