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 Yushin
has newly commercialized three models of "RA/RAII-
a
-HS series" robots as hi-cycle versions of "RA/RAII-
a
series" robots, utilizing the Internet and LAN for networked operation.
The orders will be taken from 6th May. Yushin, adopting "Heartful
Technology" as their motto, is the dedicated supplier of take-out
robots for injection molding machines (President Mayumi Kotani,
headquarters in Kyoto City, capital of 1.98566 billion yen).
The three models produced on commercial basis this time are as
following: the "RA- a
-75-HS" for injection molding machines(IMM) from 30 to 100 tons,
the "RA- a -150-HS"
for IMM from 100 to 180 tons and the "RAII-
a
-250-HS" for IMM from 180 to 300 tons. There is only the type S
with a main arm for both the "RA- a
-75-HS" and the "RA- a
-150-HS". The type S, the type D with both main and sub arms and
the type DS with main and sub arms both used for product extraction
are available for the "RAII- a
-250-HS".
The difference between the "RA- a
-HS series" and the "RAII- a
-HS series" is the structure of the vertical arms: "RA-
a
-HS series" robots have the single-stage vertical arm, whereas "RAII-
a
-HS series" robots have the two stage telescopic vertical arms.
The two stage vertical axis succeeds in reducing the total height
of robot for low ceiling plants.
The main feature of the "RA- a-75/150-HS"
is adoption of new driving system. Twin linear motors are used for
the most important axis for extraction motion, the kick axis, and
special high-power serve motors are adopted to both traverse and
vertical axes. Especially, the adoption of this new driving system
realizes cycle time cut, by speeding up in entering motion and product
extraction motion, and noise reduction as well as minimal dust generation
for clean room compatibilities.
The main feature of the "RAII- a
-250-HS" is that they provide type DS for stack molding system (*1),
which is widely used in the US or Europe, as standard. And yet rigidity
of the robots is increased and the cycle time is as fast as the
robots for normal injection molding.
Both the "RA- a
-75-HS" and the "RAII- a
-250-HS" realize high speed motions. Extraction time of "RA-
a-75-HS"
robots takes 0.38 seconds(*2) and whole their dry-cycle takes 2.31
seconds(*3). In the case of "RAII- a
-250-HS" robots, the extraction time takes 0.55 seconds and whole
the dry-cycle takes 3.51 seconds*3.
The steel flame, used on the traverse axis of "RA/RAII-
a-HS
series" robots as well as "RA/RAII- a
series" robots, provides more rigidity, accuracy and high speed
operation. This allows the robot to add value to production by smoothly
interlocking with downstream equipments such as gate cut systems
or camera inspection systems that require high positioning accuracy
and by shortening the molding cycle in high speed operation. This
series comes with an E-touch Web controller. The E-touch Web controller
is aimed for remote production control and data transmission through
the Internet or LAN. Although NETLINER series robots, a robot line
of one generation before, already had been poured technology that
links robots to the network for centralized production control,
the a-series
robots center more on remote production monitoring and control using
the Internet.
The E-touch Web controller has following features.
1. Equipped with the communication port necessary for networking.
2. Flexible and expandable functions realized by Windows-based operation.
(1) Data transmission via network
Networked operation allows you to copy teaching data directly onto
other robots with an E-touch Web controller (no media like a compact
flash is required.) The messaging function sends various data and
information to offices or other robots.
(2) Remote control
The remote control software allows you to receive teaching data
or update motion programs using the Internet. This is an expandable
function that allows future Yushin service center to support customers
recover from operation troubles by checking programs or offering
other services.
(3) Memo
You can make a note using a touch pen. If you connect an optional
USB camera, you can import images of your molded products. Then
you write a note on imported images and save them with teaching
data.
(4) Camera phone
The USB camera allows you to telecommunicate between plants and
offices through the Internet as if to talk on an intercom. You can
check the state of molded products or plant conditions using images.
This is also an expandable function that allows future Yushin service
center to offer telecommunication- based technical support.
3. Equipped with software "Lead Through Teaching" that allows customers
to easily add and modify robot motion programs.
The "RA - a
-HS series" starts at 5.1 million yen (consumption
tax excluded) for the "RA- a
-75-HS" model and 5.5 million yen for the "RA-
a-150-HS"
model. The "RAII- a
-250-HS" starts at 6.0 million yen. The sales target of those three
robots is set approximately 90 units per year.
Supplementary explanation
(*1) Stack molding system: A stack mold consists of two levels of
cavities and cores assembled in one mold, therefore it realizes
multi-cavity extraction. Molds for stack molding system are tend
to be more complex therefore more expensive than normal molds. However
the cost saving is achieved by reducing investments of mold machines
and take-out robots, since cavity space of stack molds, the key
aspect to decide clamping force of IMM, is twice as large as that
of normal molds. This stack molds are generally efficient in making
a large quantity of thin-walled parts.
(*2)Extraction dry-cycle: It is the cycle time required to simulate
a part of extraction operation with a robot simple substance. More
precisely, the simulated operation includes only extraction motion
from inserting a robot arm into molds to taking out products from
the molds. Stroke and timer used as the basis of dry-cycle calculation
are based on a standard specified by Yushin.
(*3)Whole dry cycle: It is the cycle time required to simulate the
whole extraction operation with a robot simple substance. The whole
operation means a series of motions such as extraction motion from
standby position, product release motion at a predetermined position
and return motion to the standby position. Stroke and timer used
as the basis of dry-cycle calculation are based on a standard specified
by Yushin.
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