The sand enters into the blowing tank, the tank is closed, the pattern plate is introduced in the machine.
The cope and drag flasks are closed.
The sand is blown from the upper part as well as the lower part.
FIGURE 4
FIGURE 5
FIGURE 6
After the blow, there is the sand feeding, followed by cylinder squeeze.
The flasks are opened and the pattern plate is removed.
Next, the core is placed.
FIGURE 7
FIGURE 8
FIGURE 9
Pressing the liberation bottons, the mold is closed.
The mold is removed from the flask.
The mold is transported to the pouring line.
Observing the process, it is evident that the molding with top and bottom blow enables to produce molds with profound cavities. The machine also produces castings with uniform wall thickness due to uniform density of the mold created by the next squeeze.
The process allows to use the pattern in wood, metal, resin and plastic.
The additional characteristics of the molding with top and bottom blow are:
- It does not spread sand.
- It does not require special inferior plate.
- Variable height not depending on the top and drag molds.
- Control and diagnosis through the display monitor.
