Plastic Injection Molding Machine Control Points, Machine Configuration; Machine Configurations - Siemens SIMATIC 505 User & Programmers Manual

3.1

Machine Configurations

Clamp end
of machine
0–10V
Mold
position
sensor
Clamp
actuator
U P
Pressure
transducer
0 +10Vdc output
0 2000psi
Figure 3-1 Plastic Injection Molding Machine Control Points, Machine Configuration 1
3-2 Installation and Startup
The first step in preparation for use of the TurboPlastic module is to
determine the machine control and valve configuration. Figure 3-1,
Figure 3-2, and Figure 3-3 show diagrams of the three most common
configurations. Although some differences will be noted between the
examples and actual machine configurations, one of the three examples
should be functionally appropriate. Table 3-1 contains the injection, pack
and hold, and plasticate profiles for output configuration 3. Refer to
Table 3-2 for the necessary switch settings.
Water circulates
to cool and solidify
plastic in mold
Mold
Pressure control valve
System
pressure
Heater bands melt
pellets to liquid plastic
Hopper
U P
Pressure
transducer
0 +10Vdc output
0 2000psi
Flow (Velocity)
control valve
0–10Vdc
flow signal
Injection end
of machine
Screw motor
Injection ram
Ram
position
sensor
Pressure control
valve
Flow (velocity)
control valve
0–10Vdc
flow signal
System
pressure
0–10V