TOSHIBA MACHINE

1
TOSHIBA MACHINE

• A Leader in Technology
• Presents
• The EC Servo Electric Machine

2
TOSHIBA MACHINE
EC Machine development
In developing this next generation machine,
we have combined the advanced mechanical clamp
design of our Die Cast division with the
molding and screw technology of our Plastics
division. We then incorporated the most advanced
technology in servo motor design which we have
gained from more than 40 years of
experience Building machine tools.
3
TOSHIBA MACHINE
4
TOSHIBA MACHINE
EC Machine design criteria

• Environmentally Conscious Design
• - Energy Efficient (50-80 less
• - Quiet
• - Virtually Vibration Free
• - Leak Free
• - No Cooling Water Required (except feed throat)
• - Low Factory Utility Investment
• Precision molding machine that would exceed the
  capability of our high precision hydraulic
  machines
• Strong dependable machine that could be easily
  supported
• by our famous 4 year warranty

5
TOSHIBA MACHINE
Features of the EC Machine
Easy to operate and user-friendly

• Equipped with the state-of-the-art V21 active
  matrix color controller which is a brother to the
  V10 used on our hydraulic machines.
• By just learning the Absolute Value setting
  method, operation is as simple as
• our hydraulic machines.
• (Absolute Value is actual
• speeds, pressures and
• positions in place of )

6
TOSHIBA MACHINE
Features of the EC Machine
Equipped with an extremely rigid clamp and
injection mechanism for stable, precision molding

• 5 point double toggle clamping mechanism and
  highly rigid
• platens assures precision
• platen alignment.
• Wide spaced Paten supportfor the moving platen
  assures
• parallel platens during closing.
• Injection unit has 4 parallel
• guide bars to prevent
• lateral torque on the ball
• screw even during high
• speed injection.

7
TOSHIBA MACHINE
Features of the EC Machine

• Equipped with specially designed Servo Motors and
  Servo Amplifiers based on our advanced Machine
  Tool Servo Control Technology

• Greater performance is designed into each
• model to meet all user requirements
• To further enhance
• its performance, we
• equipped the machine
• with our next generation
• V21 enlarged active
• matrix color controller

8
TOSHIBA MACHINE
Features of the EC Machine
High speed, quick response molding achieved with
high output AC servo motors

• Injection speed is 30 to 60 faster than
  hydraulic
• models.
• Response time is 30 to 40 quicker than
  hydraulic
• machines
• 28400 PSI injection pressure
• 22800 PSI holding pressure
• Maintains full Injection hold
• pressure for up to 60 seconds
• (Nearly twice most
• competitive machines)

9
TOSHIBA MACHINE
Features of the EC Machine
Maintenance free operation

• Standard Automatic Lubricator for toggle pins,
  ball
• screws and tie-bar bushings results in
  greatly improved
• machine life.
• Automatic lubrication
• occurs every 9,000
• cycles.

10
TOSHIBA MACHINE
Features of the EC Machine
High Cycle Molding with simultaneous movement of
Clamp and Screw

• Equipped with eject on the fly as standard
• Independent drive motors (with no dwell time)
  for fast
• cycle molding
• Screw can recharge while
• clamp is opening with
• optional shut-off nozzle
• or mold valve gates

11
TOSHIBA MACHINE
EC65
12
TOSHIBA MACHINE
Features of the EC Machine

• Design Components
• 4 AC Servo Motors control
• Clamp, Ejector, Injection, Charging Movements
  of the Machine
• 2 Gear Motors control
• Die Height Adjustment, and Nozzle Touch functions
  of the Machine

13
TOSHIBA MACHINE
Basic Design of EC Machine
AC Servo Motor for Clamp
AC Servo Motor for Charge
Resin
AC Servo Motor for Injection
Heater
Geared Motor for Nozzle Touch
AC servo Motor for Ejector
Geared Motor for Die Height Adjustment
14
TOSHIBA MACHINE
Basic Design of Clamp Unit
Ring Gear for Die Height Adjustment
15
TOSHIBA MACHINE
Basic Design of Clamp Unit
Rigidity Comparison based on Die platen
deflection
Partial 25 cut away view of Stationary Platen
Movable Platen
Stationary Platen
Total
128
152
140
EC45
EC65
121
117
119
Co.X
100
100
100

• Long tie bar bushing housings
• (4.5 times the tie-bar diameter)
• assure ridged tie-bar support.
• Extra long movable platen supports and rigid
  machine frame assures stabilized precision
  molding over the life of the machine.

16
TOSHIBA MACHINE
Cross Head Speed vs Force
The speed is inversely proportional to the force
Cross Head
V21 Controller has reverse profile in memory that
calculates the exact position of the platen.
Platen position is displayed, not crosshead
position
17
TOSHIBA MACHINE
DRY CYCLE COMPARISON - Clamp Velocity Profiles
640msec
Co.x
558msec
EC45
600msec
Platen Vel
Co.y
200mm/sec
100msec/div
Co.X 50ton
Co.Y 50ton
EC45
Clamp Setup Stroke 250mm
Velocity Maximum and No Slow Down
Closing Time
s
0.55
0.55
0.51
Opening Time
s
0.64
0.60
0.56
Total
s
1.19
1.15
1.07
Cycles/min
times
50.4
52.2
56.1
Clamp Stroke 250mm(9.84in)
18
TOSHIBA MACHINE
Features of the EC Machine
Comparison of Mold Open and Close Speed
Clamp Stroke 250mm (9.84in)
19
TOSHIBA MACHINE
Basic Design of Injection Unit
Pulley for Injection
AC Servo Motor for Injection
AC Servo Motor for Charge
Pulley for Charge
Ball Screw for Injection (Nut Rotation)
20
TOSHIBA MACHINE
New EC20P
EC20P Clamp Unit
Quick response , high speed injection
(300mm/sec)
Moment-free clamping unit
21
TOSHIBA MACHINE
EC20P Effect of Moment-free mechanism
Moment-free
Previous toggle clamp
Nozzle touch force (No couple force)
Poor parallel accuracy
Movable platen
Nozzle touch force (couple force)
Keep good parallel accuracy
During nozzle touch
Imbalance deflection (much deference between
top and bottom)
Clamping force
Clamping force
Uniform deflection
During lock up
22
TOSHIBA MACHINE
EC20P Stationary Platen Deflection
Conventional toggle clamp unit
Moment-free mechanism
Stationary-platen
Stationary platen
Mold
Mold
23
TOSHIBA MACHINE
Ball Screw Design
BridgeInsert
Nut
Screw
Screw
Ball
Return Tube
Nut
Ball

• The Life Expectancy depends on the Lubrication.
• Poor Lubrication shortens Life Time by 2/3.
• Half Load increases Life Expectancy 8 times.
• Life Cube of (La/Lb) La Load case a Lb
  Load case b.
• Toshiba Nut Housings are twice as long as
  competitors.
• Thus, the load is distributed over twice the
  area which in
• turn increases the life of the ball screw.

24
TOSHIBA MACHINE
Resolution of F/B.
Control Diagram of EC Servo System
Position is determined by rotary encoder on servo
motor. Accuracy is less than 0.05 micron meter
(5/100,000mm)(2/1,000,000inch)
Position Feedback
Encoder
Set Value
Precision Ground Ball Screw
Cross Head
Processor
ServoDriver
ServoMotor
Ball Screw
V21
-
Digital Servo Driver
32bit RISC (Reduced Instruction Set Computer)
i.e. Clamp Axis Control
25
TOSHIBA MACHINE
AC Servo Motor Construction
TypeSM(Synchronous)
TypeIM(Induction)
Stator Windings
Stator Windings
Squirrel Cage Rotor
Rare Earth Magnets
Position Detector
Position Detector
26
TOSHIBA MACHINE
Encoder (AC Servo Motor Position Sensor)
Photo Diode (Receiver)
Light Beam
Fixed Plate
Shaft
Disc
Slit
Photo Diode
Track 4
Track 3
Track 7
Track 7
Track 2
Track 6
Track 1
Track 5
Position Control Resolution of less than 0.05
micron meter (5/100,000mm)
Track 1
Track 2
Track 3
Track 1
Track 2
Track 3
Address
27
TOSHIBA MACHINE
ACCURATE AND REPEATABLE CONTROL
MODEL EC65-1.5Y MATERIAL PMMA PART
WEIGHT0.12 g MATERIAL TEMP.245 ?
MOLD TEMP.105 ? INJECTION TIME 12 sec COOLING
TIME40 sec CYCLE 60 sec
WHEN MATERIAL PASSES GATE, EXTREMELY SLOW FILLING
SPEED IS REQUIRED TO PREVENT JETTING MARK.AFTER
MATERIAL PASSES GATE, FILLING SPEED SHOULD BE
INCREASED QUICKLY TO PREVENT SINK MARK. 1.0mm/sec
FILLING SPEED CAN BE CONTROLLED ACCURATELY AND IS
REPEATABLE . RESPONSE TIME TO INCREASE FILLING
SPEED IS QUICK ENOUGH TO PREVENT SINK MARK.
INJ.SPEEDmm/sec
1.0mm/sec
INJ.
SINK MARK
JETTING
Pick-up Lens
28
TOSHIBA MACHINE
ADJUSTING VALVE OF GAS FLOW IN AUTOMOBILE
MODEL EC65-1.5Y MATERIAL POM PART WEIGHT3.06
g MATERIAL TEMP.190 ?
MOLD TEMP. 85 ? INJECTION TIME 10 sec COOLING
TIME10 sec CYCLE 28sec
THIS PART HAD A GAS LEAKAGE PROBLEM CAUSED BY A
WELD LINE ON THE SEALING SURFACE. TO STOP THE
PROBLEM, WE NEEDED TO ELIMINATE THE WELDING LINE,
THE PART NEEDS TO BE FILLED WITHIN 0.09sec. THE
INJECTION MOLDING MACHINE WAS REQUIRED TO HAVE
NOT ONLY HIGH INJECTION SPEED, BUT ALSO QUICK
RESPONSE FROM INJECTION START. ALSO, THE
INJECTION SPEED PROFILE SHOULD BE REPEATABLE AND
ACCURATE. THIS CAN BE DONE BY POWERFUL
PERFORMANCE OF TOSHIBA ELECTRIC MACHINE.
GATE
WELD
29
TOSHIBA MACHINE
Velocity on High Speed Spec. mm/s
Torque on High Speed Spec.
450
400
350
Velocitymm/s
300
250
200
150
Motor Torque For Acceleration
100
50
0
-50
0.0
Times
Top Speed
Motor Torque For Deceleration
Vel.
Move
Pause
Decel.
Coast
Accel.
Accel
Stop
Start
Cycle
30
TOSHIBA MACHINE
Curve A
Competitive machine designed with Curve
A Specified Maximum Injection Pressure and
Injection Velocity are not compatible, based on
Speed-Torque Curve limitation. Restriction of
Injection Pressure at maximum velocity is shown
by Red Allow, restriction of Injection Velocity
at maximum pressure is shown by Blue
Arrow. Machine designed with Curve B
(TOSHIBA) No restriction for specified Injection
Pressure and Velocity. Both maximum pressure and
velocity can be output at a same time. This
design provides more flexible molding setups with
quicker injection reaction time and longer
injection holding time. It is difficult to
figure out these difference by looking at
specification sheets, however actual machine
performance and part quality under the loaded
condition would be obviously different.
Machine Spec.
(Injection Pressure)
?
Motor Torque
Velocity available at Max.Pressure
Motor Speed
?
Pressure available at Max.Velocity
(Injection Velocity)
Machine Spec.
Curve B
(Injection Pressure)
Motor Torque
Motor Speed
(Injection Velocity)
31
Comparison of Energy Consumption
TOSHIBA MACHINE
Product Connector Product weight 17g
Resin PBT Electic machine EC65 Cycle
27.4 sec Hydraulic machine ISF60 Cycle 27.9
sec
LOCK UP
LOCK UP
Hydraulic machine 60ton (Heater ON)
EC65 (Heater ON)
INJECTION
MOLD CLOSE
MOLD CLOSE
MOLD OPEN
Hydraulic machine 60ton (Heater ON) 0.0460
kw/shot / 6.0 kwh Electric machine EC65 (Heater
ON) 0.0106 kw/shot / 1.4 kwh
MOLD OPEN
ENERGY CONSUMPTION kW
CHARGING
EJECTION
EJECTION
COOLING
HOLDING
MOLD CLOSE
MOLD OPEN
INJECTION
EJECTION
COOLING
CHARGING
INJECTION
HOLDING
LOCK UP
TIME SEC
32
TOSHIBA MACHINE
Comparison of Energy Consumption Hydraulic vs-
Toshiba EC Model
(Power Consumption Heater Motor)
33
TOSHIBA MACHINE
Comparison of Energy Consumption Hydraulic -vs-
Toshiba EC Model

• FA60 Hydraulic-vs- EC65 Electric
• 80 Lower energy consumption when processing a
  PBT connector with a shot weight of 16 gram,
  running a 28 second cycle.
• EC65 used 10.6 kW/1000 shots
• ISFA60 used 46.0 kW/1000 shots

34
TOSHIBA MACHINE
Comparison of Energy Consumption Hydraulic vs-
Toshiba EC Model
Part Tested MaterialPA Cycle 56 sec Weight 40g
Energy Consumption
5.000
4.000
1.555
Energy Consumption
3.000
1.341
2.000
1.325
2.711
1.832
1.000
0.640
0.000
EC110
Hyd.90ton
Hyd.120ton
Model
35
TOSHIBA MACHINE
Others
Comparison of Energy Consumption of Synchronous
-vs- Induction Servo Motors
Heater
kw/h
5
4
3
2
1
0
SM
IM
Toshiba does not use Induction or Direct Drive
Motors because

• INDUCTION SERVO MOTORS have
• Low efficiency at small load.
• Large current is required at starting.
• Power used continuously during idling.(During
  Cooling time.)
• 2. DIRECT DRIVE INDUCTION MOTORS have
• Larger rotors which create a greater inertia.
• Greater inertia requires more power to stop.
• Inefficient heat radiation requires extra cooling
  system.

36
Comparison of Running Costs EC65 vs F60
TOSHIBA MACHINE
37
Comparison of Running Costs EC390 vs ISG390
TOSHIBA MACHINE
38
TOSHIBA MACHINE
Comparison of Screw Start Position Stability
EC45-1Y (22mm Screw)
ISF60-1.5Y (25mm Screw)
39
TOSHIBA MACHINE
Shot to Shot Repeatability
Maximum
??
g
232.522
232.522
Laptop PC Top Cover
Minimum
??
g
232.408
232.408
Material PC/ABS

??
g
232.463
Average(X)
232.463
???
g
0.114
Range(R)
0.114
???

0.0490
R/X
0.0490
????
g
0.0250
Std Dev(s)
0.0250
???

0.0108
3s/X
0.0323
Part Weight Trend Chart
233.0
232.8
Part Weight g
232.6
232.4
232.2
232.0
0
10
20
30
40
50
60
70
80
90
100
Shot
40
TOSHIBA MACHINE
ACCURATE CONTROL at SLOW SPEEDS
LEVELING TOOL
MODEL EC160-4A MATERIAL PMMA
PART WEIGHT 40.96 g MATERIAL TEMP. 265 ?
MOLD TEMP. 98 ? INJECTION TIME 50 sec
COOLING TIME 35 sec CYCLE 99.8 sec
WELD LINE IS SHOWN AROUND THE GATE AREA IF
INJECTION VELOCITY IS NOT STABLE AT 1mm/s
VELOCITY SETTING. BY USING TOSHIBA EC SERIES,
THE FINEST ULTRA LOW SPEED CONTROL PROVIDES GREAT
RESULT OF THIS KIND OF MOLDING WITH FILL TIME
FLUCTUATION RANGE AS LOW AS 0.01 SECONDS.
41
TOSHIBA MACHINE
Comparison of Product Weight and Length Stability

• Product - Spiral flow test piece
• Resin - GP-PS
• Molding Condition
• Injection speed 4.72 (in/sec)
• Suck Back 0.197 (in/sec)
• Screw Speed 100 (rpm)
• Back Pressure 711 (psi)

42
TOSHIBA MACHINE
Injection Rate and Pressure Curve (Electric vs
Hydraulic)
Electric
Hydraulic
Injection Pressure (MPa)
Injection Rate (ccm/s)
Time (s)
With the hydraulic machine, injection rate is
dependent on pressure. As filling pressure
increases, speed decreases. With the EC machine,
the actual rate is equal to the set point.
43
TOSHIBA MACHINE
Efficiency of Sub-Flight Screw

Melt flow condition
Injection pressure
Comparison of flow length at 100mm/s ProductPBT
connector
??????????
Sub-flight screw
Sub-flight screw
Full flight screw
??????????
Full flight screw
1.5mm
Peak Pressure
Velocity
Sub-flight screw
Variation of injection pressure
Sub-flight screw
Full flight screw
Full flight screw
44
ADVANCED SCREW TECHNOLOGYPROVIDES STABLE MOLDING
TOSHIBA MACHINE

• MODELEC45-1Y(F22 SUB-FLIGHT SCREW)
• MATERIAL LCP
• PART WEIGHT 0.6986 g
• MATERIAL TEMP. 337 ?
• MOLD TEMP. 110 ?
• INJECTION TIME 0.7 sec
• COOLING TIME 6 sec
• CYCLE 11.96 sec

3.30mm
47.45mm
6.00mm

• STABILITY OF MONITORING ITEMS FOR 600 CONTINUOUS
  SAMPLES

45
TOSHIBA MACHINE
V21 CONTROLLER
20 More Room
V21
V10
640 x 400
640 x 480
Primary area has the same data as the V10.
Additional 40mm band is a split screen with a
choice 16 different monitoring data items
46
TOSHIBA MACHINE
47
TOSHIBA MACHINE
Split screen shows production data at same time
as process screens
48
TOSHIBA MACHINE

• The V21 Controller has 4 new programs to improve
  the molding process
• L.A.P. (Overlap Circuit)
• Provides faster cycles by allowing pre-injection,
  and can also provide degassing and coining
  functions93
• L.F.C. (Laminar Flow Control Circuit)
• Allows filling speed to be controlled by a
  template created by injection pressure
• Q.D.C. (Rapid Slowdown Program)
• Special screw deceleration control circuit for
  LCP
• F.I.T. (Filling Impulse Transfer Program)
• Controls the velocity transfer point to inject
  equal weights of material in a specific zone
  based on Model Template. This compensates for
  material density changes. Impulse is area under
  pressure curve.

49
TOSHIBA MACHINE
L.A.P. (Overlap Circuit)

• Provides faster cycles by allowing injection to
  start forward at the time the mold faces touch,
  or any time after that by delay timer
• Clamp lock-up time is adjustable and clamp
  lock-up speed is adjustable from 0-600mm/sec.
  This allows for degassing or coining operation
• Clamp cross head can be unlocked to preset
  position after screw recovery is complete to
  shorten cycle time
• Servo motor will maintain clamp closed position
  even if residual pressure exists in the mold.
• Coining process must start from low or no tonnage
  and continue closed until full pressure is
  reached at lock-over. Servo motors can not be
  stopped at half tonnage, dwell and then continue
  lock-up, because it takes two times normal torque
  to break static condition. Thus at half tonnage,
  this would require more torque than at full
  tonnage

50
TOSHIBA MACHINE
L.A.P. (Overlap Circuit)
51
TOSHIBA MACHINE
4.44sec
3.98sec
52
TOSHIBA MACHINE
Gas Exhausting Effect by LAP Circuit
Longer Flow Length
IC Card Molding
MaterialABS Max.Thickness0.45mm Min.Thickness
0.25mm H x V 85.554.0mm Inje
ction Vel. 300mm/sec LAP Circuit Setup
Injection Delay0.001sec Lockup Delay
0.001sec Lockup Speed 600mm/sec
w/o LAP
using LAP
53
TOSHIBA MACHINE
Time Chart of LAP Circuit
Clamp Tonnage
LS2 on
Inj. Start(LAP OFF)
Inj. Start(LAP ON)
LAP OFF LAP ON
Injection Pressure
0.14s cycle up
Cross Head Velocity
Time (s)
54
TOSHIBA MACHINE
HIGH CYCLE MOLDING
MODEL EC110-2A MATERIAL HI-PS PART WEIGHT
4.62 g MATERIAL TEMP. 260 ?
MOLD TEMP. 16 ? INJECTION TIME 0.4 sec COOLING
TIME 1.2 sec CYCLE 2.89 sec
BEST CYCLE TIME BY HYDRAULIC MACHINE WITH HIGH
SPEED OPTION (PUMP SIZE UP, SCREW SIZE UP) IS
3.2sec. CYCLE TIME BY STANDARD ELECTRIC MACHINE
IS 2.89sec.
55
TOSHIBA MACHINE
Laminar Flow Control Circuit (LFC)

• LFC provides repeatable part quality when filling
  by pressure control instead of speed control
• This process is very effective when trying to
  maintain duplication of texture or surface
  pattern, low stress molding, and molding large
  parts with reduced tonnage
• With conventional process, mold filling is
  controlled by injection speed settings as long as
  maximum filling pressure is not reached. If the
  maximum pressure setting is reduced below
  pressure required to fill at the set speed, the
  speed will reduce to a velocity attainable at the
  new pressure. From this point on, the machine
  operates under injection pressure control, not
  velocity control. This is called Laminar Flow
  processing.
• Under normal conditions, this fill rate will
  fluctuate depending on pressure variations caused
  by variations in the material.
• With the Toshiba LFC circuit ON, the machine
  memorizes the Model filling speed profile,
  divides it into 100 segments, and then controls
  all future filling profiles so they are identical.

56
TOSHIBA MACHINE
LFC (Laminar Flow Control)
Laminar Flow Control maintains consistent
injection velocity when filling under pressure
governed speed control, which provides a stabile
filling process. Effects of Laminar Flow
Control Low residual stress molding Good
duplication of texture Low pressure molding
(Making large part under low clamp force)
Filling pressure setting
Pressure control start point
When maximum pressure is reduced below required
setting, filling velocity declines to correlate
to the available pressure.
?
Filling velocity setting
Actual velocity
Actual pressure
Velocity stall
Conventional Process
Pressure governed control
LFC converts from Set Point Velocity control to
Model Velocity Control when pressure reaches max
set point to maintain consistent filling velocity
at reduced pressure.
Laminar Flow Control
57
TOSHIBA MACHINE
Consistent Velocity Curve by using Laminar Flow
Control.
Without LFC circuit, Velocity fluctuates when
pressure reaches to the set point .
58
TOSHIBA MACHINE
Laminar Flow Control Screen
Velocity is divided into 100 steps to Simulate
the Model Profile
59
TOSHIBA MACHINE
Rapid Slowdown Program (QDC)

• QDC is very effective when molding connectors
  from materials like Liquid Crystal Polymers.
• LCP materials require very short fill times.
  Thus, high injection speeds are required.
  However, the higher the rate the longer it takes
  to slow the screw down before final pack.
• With the QDC program ON, the machine applies a
  breaking action to the screw when LS4 is reached.
  
• This allows for accurate control of the slowdown
  speed and allows the injection unit to fill at
  maximum speed for a longer period of time.

60
TOSHIBA MACHINE
Rapid Slowdown Program (QDC)
RAPID SLOWDOWN Control provides ultra quick
injection deceleration just before the packing
process and gives more High Injection Velocity
time. It is useful for precision molding such
as LCP Fine Pitch Connector, and prevents rejects
from short shots and flash.
Holding
Filling
Injection Pressure
ConventionalMolding
Rapid Slowdown Control
Time
61
TOSHIBA MACHINE
Filling Impulse Transfer Program (FIT)

• Standard machine processing assumes each shot
  contains an equal amount of material. However,
  fluctuations in melt density, check ring reaction
  time, and variable amounts of regrind will cause
  fluctuations in part weight
• The FIT program calculates the area under the
  injection pressure curve for each speed zone.
  When the FIT is turned ON, it creates a
  Template of the area of the last shot.
• During subsequent shots, the computer calculates
  the area under the current pressure profile and
  makes real time adjustments to the speed transfer
  point so that the same area is achieved as in the
  Template. Thus, injecting an equal weights of
  material at the set velocity as was done in the
  Template shot.
• Competitive machines with artificial intelligence
  attempt to do the same thing by changing the
  injection speed. This can cause material burning
  at the gate if set velocity is exceeded.

62
FIT(Filling Impulse Transfer)Control
TOSHIBA MACHINE

FIT Control improves unstable injection process
caused by fluctuation of such factors as check
ring reaction time or melt condition of material.
The FIT Program shifts velocity transfer point
(A1) to provide equal impulse area under the
injection pressure curve to that of the Model
Curve. Thus, injecting an equal weight of
material at the specified velocity at each
section.


How it works
Current pressure profile P (x)
Velocity transfer position corrected by FIT

• Saves integral pressure profile for the position
  between LS5 to A1 as a good shot Template.
  (Green hatched area)
• 2. During the production, the fluctuation will be
  corrected by adjusting velocity transferposition
  from A1 to A2, until actualintegral pressure
  area is equal to the Template profile area. (Red
  hatched area)
• 3. Continuously adjusts next transfer
• position if needed.

Filling Velocity setting

A1
A2
B1
B2
C1
C2
LS5
Sampled pressure profile P(x)
63
TOSHIBA MACHINE
FIT(Filling Impulse Transfer)Control
64
TOSHIBA MACHINE
FIT Control Effects
Machine model EC240-i6A Material
PC/ABS VARIABLE EVT STD Flow Length
Var 0.23 0.46 Weight Variation 0.22 0.42
19.9
670
19.7
660
Conventional(Flow length) Distribution
1.973 Variation 0.461
EVT(Flow length) Distribution
0.919 Variation 0.234
650
19.5
640
Weightg
Flow length mm
19.3
Conventional(Weight) Distribution
1.800 Variation 0.415
EVT (Weight) Distribution
0.855 Variation 0.224
630
19.1
620
18.9
610
600
18.7
1
6
11
16
21
26
Shot
65
TOSHIBA MACHINE
EC Electric
EC20P - EC45 - EC65 - EC110 - EC180 EC240
EC390 AC SERVO PRECISION ELECTRIC MACHINES
66
TOSHIBA MACHINE
EC Electric
EC20P - EC45 - EC65 - EC110 - EC180 EC240
EC390 AC SERVO PRECISION ELECTRIC MACHINES
67
TOSHIBA MACHINE
EC Electric
EC20P - EC45 - EC65 - EC110 - EC180 EC240
EC390 AC SERVO PRECISION ELECTRIC MACHINES
68
TOSHIBA MACHINE
EC Electric
EC20P - EC45 - EC65 - EC110 - EC180 EC240
EC390 AC SERVO PRECISION ELECTRIC MACHINES
69
TOSHIBA MACHINEComparison of Hyd -vs- EC Features
Injection Pressure
5
Holding Pressure
Life of Main Parts
4
3
Price
Injection Rate
2
1
0
Response
Injection Speed
Users Maintenance
Stability of Molding
Dry Cycle
Power Consumption
70
TOSHIBA MACHINEEC20 Servo Electric Molding
Machine
71
TOSHIBA MACHINEEC45 Servo Electric Molding
Machine
72
TOSHIBA MACHINEEC65 Servo Electric Molding
Machine
73
TOSHIBA MACHINEEC110 Servo Electric Molding
Machine
74
TOSHIBA MACHINEEC180 Servo Electric Molding
Machine
75
TOSHIBA MACHINEEC240 Servo Electric Molding
Machine
76
TOSHIBA MACHINEEC390 Servo Electric Molding
Machine
77
TOSHIBA MACHINE
THANK YOU FOR YOUR TIME We Hope You Enjoyed Our
Presentation On AC SERVO ELECTRIC MOLDING
MACHINES