January 24, 2002
Ube
Machinery's MD1400S III was received the
Director-General's Award.
Ube Machinery, a wholly-owned subsidiary of
Ube Industries, Ltd., was one of the first in the
industry to develop and sell large-size
all-electric injection molding machines, with
extensive delivery to primarily the automotive
industry. In May 2001 deliveries began for the
MD1400S III, our large-size all-electric
injection molding machine with the highest
clamping force in the world. The superlative
energy efficiency of the design was recognized by
the receipt of the Director-General's Award from
the Agency of Natural Resources and Energy, at
the 22nd awards for outstanding energy-saving
equipment, sponsored by the Japan Machinery
Federation.
This awards ceremony has been held since 1980
as a part of the national effort to reduce energy
consumption, and is designed to recognize
corporations who have made significant
contributions to the development and
commercialization of industrial machinery with
high energy efficiency, and to the promotion of
more efficient energy utilization.
The awards ceremony was held on February 6, at
the Capital Tokyu Hotel in Chiyoda-ku, Tokyo.
1. Outline of the equipment
|
The twenty-first century has been called
the "environmental century" by
some, and there are signs of increased demand
for electrical injection molding machines to
replace conventional hydraulic models.
However, designing larger machines is
difficult because of limitations in the
capacity of servomotors, ball screws, and
other components of the drive units. Ube
Machinery Corporation and Niigata Plastic Machinery Co.,
Inc., met the challenge of producing
larger electric presses by |
|
|
developing drive
technology for electrical and mechanical
control of multiple servomotors, as well as
devising new power-transfer technology to
handle the increased drive capacity. This
innovation has resulted in the development of
the world's largest fully-electric injection
molding machine, powered by multiple motors. |
2. Advantages
(1) Energy-efficient and maintenance-free
Energy consumption has been cut dramatically,
using 40% to 60% less energy for one cycle
than comparable hydraulic presses. Because no
oil is used in operation, oil leaks and
related problems are eliminated, supporting a
cleaner, quieter work environment.
(2) Shortening of fabrication cycles,
higher productivity
The unit boasts faster specifications for
injection molding. In addition, it performs
simultaneous operations of certain processes
in ways difficult for hydraulic presses to
achieve. Altering the speed through highly
precise positioning with the multiple
servomotors makes it possible to keep the
required low-speed intervals to a minimum.
This dramatically shortens the molding cycle
time. Evaluation of actual molding results
demonstrates that the new design completes
cycles in 20% to 30% less time than hydraulic
injection molding machines in the 2000-ton
clamping power class, contributing to higher
productivity.
3. Technical features
A multi-servomotor design for the world's
highest clamping force: 13,700 kN, or 1,400
tons
Fully-electric injection molding machines use
servomotors for positioning and to control
speed and pressure. Large-size models require
drive control for multiple servomotors,
technology that we pioneered.
In this system, several servomotors are
distributed along the shaft that requires
enormous force, and the power of each
servomotor is combined for drive control. Two
servomotors power the clamp shaft, three
power the injection shaft, and two power the
plasticizer. The result: an all-electric
injection molding machine with the highest
clamping force available in any machine, and
outstanding injection performance.
Supporting the larger capacity of the drive
supply are innovations such as ball screws
with larger load capacity for this power
transfer method, as well as low-inertia,
large-diameter pulleys, and high-tension,
low-noise belts.
4. Main specifications for the MD1400S III
| 1. |
Clamping force: |
13,700 kN (1400 tons) |
| 2. |
Tie bar interval: |
1,830 x 1,510 mm |
| 3. |
Mold platen length: |
2,480 x 1,970 mm |
| 4. |
Screw diameter: |
120
mm |
| 5. |
Injection rate: |
1,413
cm3/sec. |
| 6. |
Injection force: |
185
Mpa |
| 7. |
Dimensions: |
(L) 14.5
x (W) 3.83 x (H)3.1 m |
| 8. |
Weight: |
96.2 tons |
| 9. |
Applications |
For molding of resins, including large
molded automobile parts |
5. Future prospects
For large-size machines, great economic
advantages accrue from more efficient energy
consumption and shorter production cycles.
Ube Machinery is now developing a large-size
all-electric injection molding machine
utilizing this technology, with a clamping
force of 17,600 kN, or 1800 tons, slated for
sale in the spring of 2002.
The 12 all-electric injection molding
machines sold by Ube Machinery and Niigata Plastic
Machinery will cover the full range from
small- and medium-size machines (30 to 450
tons) through large-size presses for 650,
850, 1000, 1400 and 1800 tons.
For information, contact:
Ube Machinery Corporation, Ltd.
1980 Okinoyama, Kogushi, Ube, Yamaguchi
755-8633, Japan
Attn : Manabu Shinano,General Affairs Group, General
Affairs Department
Phone : +81-836-22-6465
Facsimile : +81-836-22-6391
|
