OHTAKE NSRI Series User manual

Japan Quality since 1968
AUTOMATIC SCREW FEEDER
NSRI SERIES
User Manual

Read these instructions for the proper use of this machine. After having read these
instructions, keep them in a convenient place so you or the operator can refer to them
whenever necessary.
ATTENTION : www.ohtake-root.co.jp is the only web site associated with our company. 􀀃
We do not have any branches in China.

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Contents
1Overview of this machine............................................................................................................ 5
2Before use....................................................................................................................................... 5
3Operating precautions................................................................................................................. 6
4Name of Machine parts................................................................................................................ 9
5Adjustments and checks before use ......................................................................................10
5.1 Checking the model number of the body ......................................................................... 10
5.2 Basic operation...................................................................................................................... 12
5.2.1 Amount of screws to be loaded ............................................................................... 12
5.2.2 Loading the screws..................................................................................................... 13
5.2.3 Turning ON the power ............................................................................................... 13
5.3 Checking and adjusting the brush...................................................................................... 14
5.4 Checking and adjusting the passing plate ........................................................................ 15
5.5 Checking and adjusting the rail vibration ......................................................................... 16
5.6 Checking and adjusting the holding plate ..................................................................... 18
5.7 Checking and adjusting the front/rear sides of the rail ................................................. 19
5.8 Checking and adjusting the timer ...................................................................................... 20
5.9 Installing the additional “Nejikura” Screw hopper .......................................................... 21
6Maintenance.................................................................................................................................22
7Parts adjustments and replacements ....................................................................................23
7.1 Replacing and Adjusting the Brush .................................................................................... 24
7.2 Replacing the main motor ................................................................................................... 25
7.3 Operation Timing After Replacing the Main Motor ........................................................ 26
7.4 Replacing the rail................................................................................................................... 27
7.5 Replacing the passing plate ................................................................................................ 28
7.6 Replacing and adjusting the escaper and the robot escaper guide ............................. 29
7.6.1 Replace the escaper and robot escaper guide....................................................... 30
7.6.2 Check and adjust the position of the robot escaper guide. ................................ 31
7.6.3 Adjust the escaper notch position........................................................................... 32
7.6.4 Explanation of the escaper movement before adjusting the sensor ................ 34
7.6.5 Checking and adjusting the sensor.......................................................................... 36
8Operational check.......................................................................................................................37
9Application with Robotic System............................................................................................38
9.1 Installation with Robotic System........................................................................................ 38
9.2 External output signals ........................................................................................................ 39
9.3 Robotic operations ............................................................................................................... 40
10 Miscellaneous...............................................................................................................................41
10.1 Overload Protective Circuit.......................................................................................... 41

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11 Troubleshooting..........................................................................................................................42
12 Specifications............................................................................................................................... 45
12.1 Technical sheet............................................................................................................... 45
12.2 Replacement parts......................................................................................................... 47
12.3 External mechanical dimensions ................................................................................. 48
13 Warranty........................................................................................................................................49
13.1 Product Warranty........................................................................................................... 49
13.2 Disclaimer........................................................................................................................ 49

Overview of this machine
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1Overview of this machine
Thank you very much for selecting our Automatic Screw Feeder "NSRI series". This machine,
with the screwing robot, can line up screws (M-1, M-3) and supplies them one by one to an
automatic machine to help streamline screw tightening.
Different sizes of screws can be used by changing the rail, escaper, passing plate and the robot
escaper guide. It can be used wherever there is a power source for an AC adapter.
2Before use
Please check for the following accessories before operating the machine.
•Operation Manual 1 copy
•AC Adapter 1 unit
•Screwdriver 1 piece
•Hexagonal Wrench 1 piece
•Ground Wire 1 piece
The design, performance and specifications are subject to change without prior notice for the
sake of improvement.

Operating precautions
6
3Operating precautions
This manual contains safety alert, symbols and signal words to help prevent injuries to the user
or damage to property.
Indications
WARNING:
This indicates there is a chance of death, serious injury or fire if the instructions are
not followed.
CAUTION:
This indicates there is a chance of personal injury or damage to property if the
instructions are not followed.
Symbols indicating type of danger and preventative measures
Prohibited operation. Never do this!
Do not disassemble, modify or repair
Do not touch with wet hands
This indicates to stop operations
Unplug power supply from wall outlet
General caution
Attach the ground wire by loosening the screw near the mark of the equipment.
Bottom of the main body

Operating precautions
7
WARNING
Do not disassemble the AC adapter as there is a risk of electric shock, fire or malfunction.
Do not damage, alter or change the power cord. Do not place heavy objects on the cord. Do
not pull hard on the cord or twist the cord as it could be damaged, thereby causing a risk of
fire or electric shock.
Do not handle the AC adapter with wet hands as it could cause an electric shock.
When using an outlet with AC100 ～240V, don't overload the electrical circuit.
Do not modify or remodel this machine as this may cause a fire or electric shock.
Stop operating the machine and unplug the AC adapter from the wall outlet when you
detect overheating, smoke, a pungent odor or any other unusual condition, as there may be
a risk of fire or electric shock. Contact the dealer, from which you purchased the machine,
and have it examined and repaired.
In the case of a thunderstorm, stop operating the machine, turn off the power and unplug
the AC adapter from the wall outlet. If there is lightning and thunder nearby, move away
from the machine and do not touch it or the AC adapter.
After the thunder stops, and when it is safe to do so, check the machine. If there is any
abnormality, contact your dealer.
When performing maintenance, changing parts or when you sense an abnormality in the
machine, turn the power off and pull the AC adapter from the wall outlet.
In addition, there are parts that become hot in the circuit board. When performing
maintenance around the circuit board, turn off the power for at least 5 minutes before
performing work. There is a risk of burns.

Operating precautions
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CAUTION
Use only the AC adapter supplied with this machine otherwise it may result in a fire or
electric shock.
Do not install this machine in an unstable location otherwise it may fall causing
damage or injury.
Always operate the machine with the upper cover in place, otherwise it may result in
injury.
Do not allow any foreign material to enter the machine while in operation.
Do not put your fingers into the machine while in operation, otherwise an injury will
result.
Do not operate this machine in overly humid or dusty conditions.
Keep the plug socket clean at all times otherwise it may cause a fire or electric shock.
When moving the machine, always disconnect the AC adapter from the wall outlet or
it may result in damage to the cord or cause a fire or electric shock.
Turn off the machine and unplug the AC adapter from the wall outlet during closing
hours or if the machine will be unused for any extended period of time.
When moving the machine, be sure to hold it with both hands and be careful not to
drop it. Dropping the machine at your feet may cause injury.
Do not operate the machine with tension on the AC adapter cord. Keep the cord loose
and untangled.
Do not bend, alter or damage the rail. Do not apply any oil. It is recommended that the
user clean the rail periodically.
Do not use any screw that is out of the specified range nor any screw that is oily or
dirty.
When picking up screws, do not exert excessive force or shock to the screws.
When opening the upper lid, please do not apply excessive force. There is a risk of
damage.

Name of Machine parts
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4Name of Machine parts
A. Rear cover
B. Upper cover
C. Rail fixing bolt
D. Front cover
E. Holding plate
F. LED screw indicator
G. Sensor bracket attaching bolt
H. Escaper bracket installing screw
I. Power switch
J. Escaper
K. Escaper guide for the robot
L. Light-emitting sensor
M. Light-receiving sensor
N. Scooping block left and right
(moving up and down)
O. Brush
P. Passing plate
Q. Scooping chamber
R. DC jack
S. Signal line out
T. Vibration adjusting bolt (under
the machine)
U. Vibration adjusting plate fixing
bolt
V. Rail
W.Timer knob
A
B
C
D
E
F
G
I
H
K
M
L
J
p
R
S
T
Q
U
O
V
W
N

Adjustments and checks before use
10
5Adjustments and checks before use
5.1 Checking the model number of the body
Check if the machine has the parts which match the nominal diameter of the screws to be
loaded. Check the model number of the rail, escaper, escaper guide for the robot and
passing plate by referring to the following table. Each escaper is stamped with a model
number which matches with the type of screws that can be used. The escaper guide for the
robot is stamped with a model number which corresponds with the types of screws that
can be used.
Before delivery, each section of the machine is checked and adjusted with panhead screws
matching the nominal diameters of the ordered model.
Most screws may be usable in the initial status of adjustment however, if the height or
shape of the screw head is different or if the operation is regarded as abnormal, each
section must be readjusted. If this is the case, make the following checks and adjustments:
•Check the screw load amount
•Check and adjust the passing plate
•Check and adjust the holding plate
•Check and adjust the timer
•Check and adjust the brush
•Check and adjust the rail vibration
•Check and adjust the front and rear sides of the rail
Rail identification
seal
Passing plate
identification seal
Escaper guide for the
robot identification
stamp
Escaper
identification stamp