R06.0
16/05/2019
Page 7
2.2
Function description
Afag BF bowl feeders use a vibration force compensation system based on the counter-
vibration principle. In this case a utility weight (1) vibrates exactly opposite to a counter-
weight (2). The utility weight is essentially formed by the mounting plate, the bowl and
the magnetic anchor, the counterweight is formed by the counter ring and the vibration
magnet. The utility and counter weights are secured to a base ring (4) by leaf spring as-
semblies (3). If the mass moments of inertia and mass specified in section 2.4 are not
exceeded when the utility and counterweights vibrate, exactly equal reaction forces are
generated, which are then transferred to the base ring (4) through the of leaf spring as-
semblies (3). As a result of this opposite vibration of the utility weight and counter weight,
these reaction forces almost totally cancel each other on the base ring (4).
Figure 1:
BF without casing
2.3
Definition of the feed direction
The feed directions for the BF are defined as follows:
Left-hand (L)
, in
anti-clockwise
direction
Right-hand (R)
, in
clockwise
direction
Figure 2
1
2
4
3
