OHTAKE NSRI Series User Manual
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OHTAKE NSRI Series User Manual

Automatic screw feeder
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Japan Quality since 1968
AUTOMATIC SCREW FEEDER
NSRI SERIES
User Manual

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Summary of Contents for OHTAKE NSRI Series

  • Page 1 Japan Quality since 1968 AUTOMATIC SCREW FEEDER NSRI SERIES User Manual...
  • Page 2 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.

  • Page 3: Table Of Contents

    Contents 1 Overview of this machine ......................5 2 Before use ............................5 3 Operating precautions ......................... 6 4 Name of Machine parts ........................ 9 5 Adjustments and checks before use ..................10 5.1 Checking the model number of the body ................. 10 5.2 Basic operation ........................
  • Page 4 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...

  • Page 5: Overview Of This Machine

    Overview of this machine Overview 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.

  • Page 6: Operating Precautions

    Operating precautions Operating 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.
  • Page 7 Operating precautions 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.
  • Page 8 Operating precautions 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.

  • Page 9: Name Of Machine Parts

    Name of Machine parts Name of Machine parts Rear cover Upper cover Rail fixing bolt Front cover Holding plate LED screw indicator Sensor bracket attaching bolt Escaper bracket installing screw Power switch Escaper Escaper guide for the robot Light-emitting sensor Light-receiving sensor Scooping block left and right (moving up and down)

  • Page 10: Adjustments And Checks Before Use

    Adjustments and checks before use Adjustments 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.
  • Page 11 Adjustments and checks before use Robot Screw Screw Passing escaper Rail feeder feeder plate Screw Exchange Escaper guide model model series model model No. size kit No. model No. NSRI10 M1.0 RI10SET RI10 SIE10 NSRI12 M1.2 RI12SET RI12 SIE12 SIER10-17 SW1017 NSRI14 M1.4...

  • Page 12: Basic Operation

    Adjustments and checks before use 5.2 Basic operation 5.2.1 Amount of screws to be loaded Turn the power switch ON and OFF so that the scooping block is at the lower limit position. Load screws up to approximately 2 ～ 3mm below the rail surface. At this time, check that screws are not loaded so as to cover the upper portion of the inclined plate.

  • Page 13: Loading The Screws

    Adjustments and checks before use 5.2.2 Loading the screws Open the upper cover. When the chamber plates are at their lowest position, load screws up to 2 to 3 mm below the rail groove surface. Check that the screws are not loaded so as to cover the upper portion of the inclined plates.

  • Page 14: Checking And Adjusting The Brush

    Adjustments and checks before use 5.3 Checking and adjusting the brush CAUTION: Turn OFF the power switch before starting replacement and adjustment. Load the screws into the scooping hopper, turn ON and OFF the power switch so that screws are aligned into the rail groove. Turn ON and OFF the power switch so that the brush bristles are in a horizontal position as shown in the figure at right.

  • Page 15: Checking And Adjusting The Passing Plate

    Adjustments and checks before use 5.4 Checking and adjusting the passing plate CAUTION: Turn OFF the power switch before making any checks or adjustments. Check that the passing plate is adjusted to a height that permits loaded screws to pass just within the clearance limit.

  • Page 16: Checking And Adjusting The Rail Vibration

    Adjustments and checks before use 5.5 Checking and adjusting the rail vibration This machine’s rail vibration can be adjusted. The screw transport speed differs depending on the screw type. Check the screw transport speed. If the rail vibration hinders a smooth transport of the screws, it can be adjusted. Loosen the anti-vibration screw at the rear of the machine.
  • Page 17 Adjustments and checks before use Vibration adjusting plate fixing bolt Vibration adjusting bolt weaker vibration Stronger vibration The rail must not come in contact with the escaper. The clearance must not be too large...

  • Page 18: Checking And Adjusting The Holding Plate

    Adjustments and checks before use 5.6 Checking and adjusting the holding plate Check that the clearance between screws in the rail groove and the holding plate is about 0 to 1 mm. If there is no clearance, a screw will be caught. If the clearance is too large, a screw pile or screw jump will occur.

  • Page 19: Checking And Adjusting The Front/Rear Sides Of The Rail

    Adjustments and checks before use 5.7 Checking and adjusting the front/rear sides of the rail If the rail comes into contact with the escaper, or the clearance between the rail and escaper is too large, when the machine is operated, loosen the rail fixing bolt and adjust the rail either backward or forward.

  • Page 20: Checking And Adjusting The Timer

    Adjustments and checks before use 5.8 Checking and adjusting the timer The screw transport feed differs depending on screw type. This machine can make screw unloading smooth through timer adjustment. For screws with a low transport speed, set the timer long. For screws with a high transport speed, set the timer short.

  • Page 21: Installing The Additional "Nejikura" Screw Hopper

    Adjustments and checks before use 5.9 Installing the additional “Nejikura” Screw hopper We have, as an attachment, "Nejikura" which supplies a constant amount of screws, automatically. To use "Nejikura", take off the upper cover of the screw feeder NSRI type and put on "Nejikura".

  • Page 22: Maintenance

    Maintenance Maintenance A dirty rail groove may interfere with the screw transport speed. Clean the dirty rail with a soft, clean cloth dipped in alcohol. If cleaning is difficult, remove the rail from the machine and clean the rail groove. Before removing the rail from the machine, be sure to turn off the power supply and take the screws out of the chamber.

  • Page 23: Parts Adjustments And Replacements

    Parts adjustments and replacements Parts adjustments and replacements The brush and main motor are consumable parts. When using a different diameter of screw, the following items must be replaced: rail, escaper and passing plate. These parts may be ordered separately. The replacing and adjusting procedures are described on the next pages.

  • Page 24: Replacing And Adjusting The Brush

    Adjustments and checks before use page 10 Part number of brush assembly: • OHTAKE - NSB 02053, OnRobot - 104849 #01 (standard brush) • OHTAKE NSB 02053, OnRobot - 104850 #02 (optional, harder bristle brush) Brush assembly attaching screw Passing...

  • Page 25: Replacing The Main Motor

    Do not use excessive force with the motor wiring in order to avoid wire breakage. Part number of main motor unit : OHTAKE - NSIB 7115, OnRobot - 104847 1. Remove the cover and disconnect the 2. Remove the motor attaching screws.

  • Page 26: Operation Timing After Replacing The Main Motor

    Parts adjustments and replacements 7.3 Operation Timing After Replacing the Main Motor CAUTION: Turn OFF the power switch before starting to replace and adjust the main motor. • To adjust the timing of the scooping block in respect to the brush movement, it is necessary to adjust the gear engagement.

  • Page 27: Replacing The Rail

    Parts adjustments and replacements 7.4 Replacing the rail CAUTION: Turn OFF the power switch before starting to replace and adjust the rail. Before replacing, remove all the screws from the hopper, the rail, and the escaper. The rail of this machine can be easily replaced. If there is any dirt or flaw on the rail groove that prevents a smooth operation, we recommend the user clean or replace the rail.

  • Page 28: Replacing The Passing Plate

    Parts adjustments and replacements 7.5 Replacing the passing plate CAUTION: Turn OFF the power switch before starting to replace and adjust the passing plate. Use the passing plate, rail and escaper that correspond with the diameter of the screws loaded. The following are passing plate numbers which correspond with the model numbers: •...

  • Page 29: Replacing And Adjusting The Escaper And The Robot Escaper Guide

    Parts adjustments and replacements 7.6 Replacing and adjusting the escaper and the robot escaper guide CAUTION: Turn OFF the power switch before replacing. Turn ON the power switch when adjustments are necessary. Before replacing, remove all the screws from the hopper, the rail, and the escaper. When using screws with a different diameter, replace the escaper, rail, passing plate and the robot escaper guide.

  • Page 30: Replace The Escaper And Robot Escaper Guide

    Parts adjustments and replacements 7.6.1 Replace the escaper and robot escaper guide. Before replacement, remove any screws that were loaded in the chamber. Replace and adjust the escaper and the robot escaper guide after removing the attaching plate for the holding plate along with the holding plate. To replace the escaper, remove the screws attaching the robot escaper guide and then remove the robot escaper guide.

  • Page 31: Check And Adjust The Position Of The Robot Escaper Guide

    Parts adjustments and replacements 7.6.2 Check and adjust the position of the robot escaper guide. Check and adjust the position of the robot escaper guide in relation to width and the position of the escaper in relation to height. Check that the clearances between the outside of the rail and the robot escaper guide are almost even on the right and on the left.

  • Page 32: Adjust The Escaper Notch Position

    Parts adjustments and replacements 7.6.3 Adjust the escaper notch position. Turn the power switch ON while covering the sensor light axis When the power is ON, the screw sensor LED lights up and the escaper motor moves around to the back, to the starting point. (Reference point run.) When the escaper motor is at the reference point, the escaper doesn't move.
  • Page 33 Parts adjustments and replacements Escaper Oval hole Adjust an escaper notch position by loosening the screws and rotating the escaper. Cover the sensor’s optical axis with paper. You can make fine adjustments for width clearance between the end of the rail and the escaper.

  • Page 34: Explanation Of The Escaper Movement Before Adjusting The Sensor

    Parts adjustments and replacements 7.6.4 Explanation of the escaper movement before adjusting the sensor When the power switch is turned ON, if there is no screw at the site where the screw is to be picked up, the escaper rotates with the screw sensor LED off. The escaper rotates and accepts a screw from the rail.
  • Page 35 Parts adjustments and replacements Power switch Escaper Sensor LED screw indicator Screw pick up site The screw is carried to Accepting a screw Picking up the screw at the pickup site. LED LED screw indicator the pickup site. LED screw indicator ON screw indicator OFF When a screw is not When a screw is at...

  • Page 36: Checking And Adjusting The Sensor

    Parts adjustments and replacements 7.6.5 Checking and adjusting the sensor Check when required. When checking is required, take the rear cover off and check the voltage level of No. 7 pin of IC4050 on the base and adjust the sensor bracket. When measuring the voltage level, the metal part of the main body is the ground.

  • Page 37: Operational Check

    Operational check Operational check After checking and adjusting each component, do an operational check with screws loaded. If any abnormality is found, make the said adjustments once again in addition to the rail vibration and front/rear position adjustments. After completing the operational check, return the wiring arrangement to its original status. When installing the cover, take care not to catch or pinch the wires.

  • Page 38: Application With Robotic System

    Application with Robotic System Application with Robotic System 9.1 Installation with Robotic System When installed with a robotic assembly, the screw feeder shall be fastened by lower edges of the cover (Please refer to diagram below). Fastening screws on bottom edge of the cover can be used for this purpose as well.

  • Page 39: External Output Signals

    Application with Robotic System 9.2 External output signals The wires coming out from the back of the machine serves as the detection of presence of screws on the rotational escaper, which shall be used with automatic assembly machines or external screw counters [Function]: Screw present: signal high (ON) Incoming current: shall be limited to less than 100mA [Capacity]: Max DC current: 100mA...

  • Page 40: Robotic Operations

    Application with Robotic System 9.3 Robotic operations When the screw feeder is used with an automatic screwdriver, the pushing force of the screwdriver on the escaper and/or the escaper guide must not be higher than 20 N. Bit cover Driver bit Screw F <...

  • Page 41: Miscellaneous

    Miscellaneous 10 Miscellaneous 10.1 Overload Protective Circuit This machine is provided with an overload protective circuit. Usually, the driving motor rotates forward (normal rotation) to feed loaded screws to the escaper continuously, thus picking up screws one after another. However, if an overload is applied to the driving section, the driving motor rotates backward for a certain time and then returns to the normal rotation.

  • Page 42: Troubleshooting

    Troubleshooting 11 Troubleshooting Trouble Cause Corrective measures Power is not supplied. Check the connection of the power supply of the AC power adapter. A screw hasn't been removed from Take the screw out from the the pickup spot for a certain amount pickup site.
  • Page 43 Troubleshooting Trouble Cause Corrective measures Screws with a smaller diameter Use screws with the specified than the specified rail size were nominal diameter and length. loaded. A screw has fallen into the rail groove. Screws with a shorter total length corrective measure than the rail groove width were...
  • Page 44 Troubleshooting Trouble Cause Corrective measures scooping operation does The timer knob is not properly Readjust the timer knob. stop though a screw is adjusted. at the pickup site. The escaper operation does not stop though a The sensor does not detect a Readjust the voltage of the screw is at the pickup screw.

  • Page 45: Specifications

    Specifications 12 Specifications 12.1 Technical sheet General property Description/Value Unit Input: AC 100~240, 50/60 [Hz] Power AC adapter (switching type) Output: DC 15 123x181x145 [mm] Dimensions (W,D,H) 4.8x7.1x5.7 [inch] Approx. 3 [kg] Weight (including rail) Approx. 6.6 [lg] Operation Manual 1 copy AC Adapter 1 unit Following accessories Hexagonal wrench 1 piece...
  • Page 46 Specifications Reference table of the specified screws Shape of screw head Screw Screw Screw Screw Screw Pan head Bind Flat Counter Hexagon shaft head shaft head size head sunk flange Length diameter diameter Sems Double Washer thickness head bolt [mm] [Ø] sems head...

  • Page 47: Replacement Parts

    Specifications 12.2 Replacement parts Rail Escaper Passing plate Robot escaper guide Brush assembly Main motor (with Harness) TPO01002 #17...

  • Page 48: External Mechanical Dimensions

    Specifications 12.3 External mechanical dimensions All dimensions are in mm...

  • Page 49: Warranty

    Warranty 13 Warranty 13.1 Product Warranty Without prejudice to any claim the user (customer) may have in relation to the dealer or retailer, the customer shall be granted a manufacturer’s warranty under the conditions set out below: In the case of new devices and their components exhibiting defects resulting from manufacturing and/or material faults within 12 months of entry into service (maximum of 15 months from shipment), OnRobot A/S shall provide the necessary spare parts, while the customer (user) shall provide working hours to replace the spare parts, either replace the part...
  • Page 50 Iwate, 02-0902 JAPAN 27〒021-0902 Tel +81-191-24-3144 Tel +81-191-24-3144 Fax +81-191-24-3145 Fax +81-191-24-3145 「Quicher」「OHTAKE」「OHTAKE・ROOT KOGYO」 are trademarks or/and registered trademarks of OHTAKE・ROOT KOGYO CO.LTD. 「Quicher(クイッチャー）」「OHTAKE」「OHTAKE・ROOT KOGYO」は、株式会社 大武・ル ート工業の商標又は登録商標です。 The specifications and/or design may be altered, without notice, whenever there are changes or improvements.
  • Page 51 The User Manual is translated into 20+ languages. Find these translations stick visit www.OnRobot.com...

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