A P S X - P I M D E S K T O P I N J E C T I O N M A C H I N E
APSX, LLC. 2017 –
www.APSX.com
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Plasticizing Section
The plasticizing section melts plastic pellets and contains them at a set temperature for
the injection process. It has an electronically controlled/heated cylinder barrel,
thermocouple, heater and insulation parts. It touches to the injection, valve and pre-
plasticizing sections.
Pre-Plasticizing Section
The pre-plasticizing section allows the transfer of plastic pellets and moves them into
the cylinder barrel in the plasticizing assembly. It includes the hopper motor, hopper
and hopper feeder. It also prevents the backward flow of pellets to the hopper feeder
when the injection plunger injects the pellets into the mold cavity. The hopper feeder
with a screw in it can control the amount of metered plastic material to be transferred
from the hopper to the cylinder barrel. Hopper which is 5.44kg (12lbs) capacity can be
fed either manually or with an automatic feeder.
Injection Section
The injection section is secured to a movable structure that can move the plunger
horizontally. Injection assembly applies linear injection pressure onto the melted plastic
within the plasticizing assembly. It uses the spring, injection motor and plunger. The
plunger is connected to the spring by a precision ball screw. The injection motor
compresses the spring to push the plunger into the cylinder barrel. All actions of the
plunger and the spring compression are precisely controlled by linear motion control
sensors.
Injection Valve Section
The injection valve section controls the flow of the pressurized melted plastic into the
plastic mold cavity. It includes the valve pin and the valve motor. The injection valve
section is connected to the tip of plasticizing assembly with screws. The pressurized
hot plastic travels the cylinder barrel when the plunger pushes it within the cylinder
bore along a flow path into the mold cavity. The flow is adjustable for various plastics
by electronically controlling the degree of opening angle of the valve pin positioned in
a metal block. It can be controlled by the valve motor interconnected to the pin
through the sprocket mechanism.
Clamping Section
The clamping section holds the opposite injection pressure on the mold by applying
force against the injection force generated by the injection assembly. It has the
clamping motor and the cooling fan. The clamp force is adjusted electronically by using
a pressure sensor. There is also an ejector mechanism attached to the clamping section
that allows automatic ejection of the part from the mold.
User Interface Section
The user interface section provides full control to the user. Its two parts are the
electronics board panel and the touch screen tablet PC. It allows the user to set the
operational and material related parameters on screen within the pre-set ranges. The
115VAC power input from a regular wall outlet is also included in this section.