Sequence of Operation–AUTOMATIC
The High Speed Pusher is comprised of a number of
pneumatic and electrical parts to sense the position of
the ram. (Figure 12A). One cycle of the pusher is
described in the following sequence.
RAM FULLY RETRACTED (Figure 12A)
When the pusher is in the stand-by mode
(retracted), air is supplied through the main air valve
(1) to the retract end of the cylinder (3), holding the
ram (7) in the retracted position. Proximity switch P3
(10), the home position sensor, is activated.
FIGURE 12A
ITEM
1 MAIN AIR VALVE–SOLENOID OPERATED
2 CUSHION AIR VALVE– SOLENOID OPERATED
3 AIR CYLINDER
4 MUFFLER ASSEMBLY
5 MUFFLER
6 FLOW CONTROL VALVE
7 RAM
8 PROXIMITY SWITCH P-1 (RETRACT)
9 PROXIMITY SWITCH P-2 (CUSHION)
12
DESCRIPTION
2. . .
SIGNAL TO BEGIN CYCLE (Figure 13A)
Contact "X" is closed momentarily. (This is the
signal from a photo-eye, programmable controller,
etc., to activate the pusher.) Solenoid #1 is
energized which shifts the main air valve (1),
sending air to the extend end of the cylinder (3) to
begin the cycle. As the ram extends, P-3 is de-
activated.
10 PROXIMITY SWITCH P-3 (HOME)
11 SHUT-OFF VALVE
12 MAIN REGULATOR W/FILTER & LUBRICATOR (FRL)
13 CUSHION REGULATOR
14 AIR SUPPLY LINES
MAIN AIR SUPPLY
NO AIR PRESSURE
CUSHIONED AIR