Epson RC+ 7.0 Manual page 14

3. Construction and function of the linear feeder
3. Construction and function of the linear feeder
Linear feeders are used for the actuation of conveying equipment. The actuation takes place
by an electromagnet. The following schematic diagram shows the function of a linear
feeder:
The linear feeder is a device of the family of vibratory bowl feeders. It is, however, equipped
with a linear conveyor. Electromagnetic vibrations are converted into mechanical vibrations
and are used for conveying material B. If magnet D, which is securely connected with the
counter mass F, is supplied with current, it generates a power that, dependent on the
vibration frequency of the mains supply, attracts and releases armature E. Within a period
of the 50 Hz of the A.C. network the magnet achieves its maximum power of attraction
twice, as this is independent of the direction of the current conduction. The vibration
frequency therefore is 100 Hz. In case a half-wave is locked, it is 50 Hz. Please take the
vibration frequency of your linear feeder of the table described in 1. Technical data.
A linear feeder is a resonant system (spring-mass-system). The result is that the adjustment
made at the factory will rarely meet your requirements. Chapter 5 describes in detail how
your linear feeder is adapted to your requirements.
Controlling of the linear feeder takes place by a low loss electronic control unit type ESG
1000. At its front panel it is provided with a 7-pole plug-in connection, by which it is
connected to the linear feeder.
The pin assignment of the socket is shown in the table described in 1. Technical data.
All control units have got two main operating elements:
- By the mains switch the linear feeder is switched on or off.
- By the turning knob the conveying capacity of the transport unit is set.
8
For more information on the complete range of control units,
NOTE

please refer to Hardware (Hopper Controller).
Part Feeding 7.0 Hopper & Hopper Controller Rev.5