WOOJIN TB en Injection Molding Machine

인어

TB series

5

Energy saving hydraulic injection molding machine
Energy
consumption

Cooling water
consumption

Hydraulic oil
consumption
OIL

Cooling
Water

60~80% savings

25% savings

15% savings

*Savings
under
standard
*Savings
under

standardconditions.
conditions.

Controller

The TB series is a new energy-saving hydraulic injection
Consumo
Consumo
de agua
Consumo
molding
machine that
optimizes
the mechanical
structure
de energía
refrigerante
de aceite hidráulico
and control system for the servo pump system.

Dual-pull nozzle touch cylinder

Center-press toggle

Dual cylinder injection unit

OIL

Cooling

- Center-press platen and brake
Watermotor in clamping unit for increased accuracy & precision.
- High-rigidity frame
60~80% Ahorros 25% Ahorros
15% Ahorros
- Optimized
mechancial design for greater clamping
force in a smaller-sized machine.
- Stabilizing mounting feet reduce *Savings
noise and
machine from ambient vibration.
underisolate
standardthe
conditions.

Discrete hydraulic circuit for oil circulation, cooling, and filtering,
decreasing process startup time, maximizing process precision,
and increasing the life expectancy of the machine.
Injection unit equipped with dual-pull nozzle touch cylinder,
Proportional/Integral/Differential valves,
& low friction mechanixm for improved precison and wear of nozzle.

Closed-loop system

Brake motor to lock the clamp
base position

Servo pump system

High-rigidity frame

Hydraulic oil circulation system

Injection
Unit
Model
TB 90S
TB 120S
TB 160S
TB 200S
TB 240S
TB 280S
TB 380S
TB 480S
TB 580S
TB 680S
TB 880S

IB370
O
25

A
28

IB370
B
30

O

28

A
30

IB640
B
35

O
35

A
40

IB640
B
45

O
40

A
45

IB1080
B
50

O

45

A
50

IB1320
B
55

O
50

A
55

IB2140
B
60

O
65

A
70

IB2950
B
75

O

65

A
70

IB3750
B
80

O
70

A
80

IB5340
B
90

O
80

A
90

IB7970
B
105

O

95

A
105

B
115


7

Clamping unit

1. Servo pump system

3. Center press moving platen
P

Servo pump sytem reduces energy consumption
up to 80% vs traditional pump.
Reduces heat generation & dissipation into hydraulic oil.
Reduces oil cooling needs up to 25% compared to.
traditional pump. Produces less noise during machine
operation.

PS

- Evenly distributes clamping force on the mold

Pressure Sensor

- Minimizes mold deflection

Relief
Valve

- Greater speed and stability in platen movement

Controller
P
Q

Servo
Motor
Driver

UVW

Center-press toggle system is designed to apply
well-dispersed force across the entire mold surface
during clamping.
High-lubricity tie bar bushings decrease friction and
retain shape during clamp movements.

Gear
Pump

Servo Motor
Resolver
T

Dr

▲ Schematics of Servo Pump System

[ General type toggle]

2. Independent cooling and filtering system

Mold
base

- Oil-leakage protection

- Better process control and precision

- Increase durability

- Reduce cooling & filtering time

Dedicated circuit for oil cooling/filtering maintains oil conditions
with greater stability. It helps to improve reducibility and reduce
maintenance normally needed under typical molding conditions
with integrated oil conditioning.
By comparison, integrated oil circulation can bring contaminated
oil into the tank through oil cooling/filtering and routine
operation, increasing the frequency of filter changes, adding
to component wear, producing additional heat, and contributing
to leak point formation.

Use
Uso
There is no interference during oil circulation

Oil -de
Tank
Tanque
aceite

Motor
Motor

However, the newly designed oil tank & circulation system
separates oil circulation from oil cooling/filtering through
a discrete pump, ensuring that unfiltered oil and filtered oil have
no contact during machine operation.
Moreover, hydraulic oil can be conditioned while the process is
idle or undergoing setup.

[ Center-press type toggle ]

Mold
base

▲ On smaller-sized molds, clamping force
concentrates at the corners of the mold.

Mold
base

▲ Regardless of mold size, clamping force dispersion
and deflection is uniform across the entire mold face.

4. Brake motor
- Maintaining set of clamping force
by preventing clamp slip phenomenon

The brake motor on the rear platen maintains
the same position even after long and repeated use,
eliminating the need to recalibrate mold height on
even the longest production runs.

Oil - Cooler
Enfriador
de aceite
Oil-Filter
Filtro
de aceite
▲ Independent cooling and filtering system

▲ Brake motor to lock the clamp base position

Mold
base


9

Injection unit

1. Closed-loop system

- Enhanced control of injection back pressure by system
feedback and self-regulation.

Correlates system parameters with actual measurements,
ensuring that all positions and pressures perceived by the
controller are precisely those of the actual components and
fluids.
Ensures that there is absolutely no deviation between set
parameters and actual measurements.

3. Dual pull nozzle touch cylinder

▲ Closed-loop controlling cystem

- Nozzle touch stability improves molding precision

2. Dual cylinder injection unit

-

Faster reaction time of the screw during injection
Provides an even axial force on the screw, reducing wear
Greater process stability
Minimize and cushion the impact

▼ Dual cylinder injection unit

The dual pull nozzle touch cylinders are equipped

on both sides in injection unit providing greater stability
and improved precision.
By comparison, a single pull nozzle touch cylinder
concentrates force at the bottom of the fixed platen,
contributing to a loss of platen parallelism over the course
of routine use.

The dual cylinder injection unit is designed to provide
axial dispersion of force during screw traversal,
preventing wear against the barrel interior.
High-responsiveness and minimizes molding defects
caused by uncontrolled pressure changes in melt flow.

▲ Single Pull Nozzle Touch Cylinder

▲ Dual Pull Nozzle Touch Cylinder