NARGESA MT500 A User manual

INSTRUCTIONS BOOK
PRADA NARGESA, S.L
Ctra. de Garrigàs a Sant Miquel s/n
17476 PALAU DE STA. EULALIA (GIRONA) SPAIN
Tel. [phone] - Fax [phone]
www.nargesa.com - [email protected]
FORGING TWISTING MACHINE
MT500 A

Thank you for choosing our machines
www.nargesa.com

INSTRUCTIONS BOOK OF FORGING TWISTING MACHINE MT500 A 2
THERE IS A DVD INCLUDED AS AN
ESSENTIAL PART OF THIS BOOK.
IT’S GOT THE STEP-BY-STEP
PERFORMANCE OF THE
MACHINE AND SOME EXAMPLES
OF WORKS THAT CAN BE
CARRIED OUT WITH IT.

INSTRUCTIONS BOOK OF FORGING TWISTING MACHINE MT500 A 3
INDEX
1. INFORMATION ABOUT THE MACHINE ................................................................................
1.1. Machine identification...................................................................................................
1.2. Normal usage of the machine .....................................................................................
1.3. Noise caused by the machine .....................................................................................
1.4. Vibrations ....................................................................................................................
1.5. Operative’s natural working place ...............................................................................
1.6. Description of the machine ..........................................................................................
1.7. Description of accessories ..........................................................................................
1.8. Description of safety devices ......................................................................................
1.9. Basic characteristics of the tooling that can be fitted to the machine ..........................
1.10. Information related to the electrical equipment ........................................................
1.11. Instructions to connect it to the power supply ...........................................................
2. TRANSPORT AND STORAGE ...............................................................................................
2.1. Transport .....................................................................................................................
2.2. Storage conditions ......................................................................................................
3. INSTALMENT AND STARTING UP ........................................................................................
3.1. Instructions to fix it ......................................................................................................
3.2. Admisible outer conditions ..........................................................................................
3.3. Safety systems for the operative .................................................................................
3.4. Periodicity of revisions ................................................................................................
4. INSTRUCTIONS ......................................................................................................................
4.1. Instructions for the adjustmen .....................................................................................
4.2. Residual hazard. Danger caused by fitted elements ...................................................
4.3. Information about forbidden usage methods ...............................................................
4.4. Instructions for learning ...............................................................................................
5. DETAILED EXPLANATION OF ITS PERFORMANCE ...........................................................
5.1. Introduction .................................................................................................................
5.2. definition of the system ...............................................................................................
5.3. Description of the machine control ..............................................................................
5.4. Equipment performance ..............................................................................................
5.5. Manual mode ..............................................................................................................
5.6. Automatic mode ..........................................................................................................
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INSTRUCTIONS BOOK OF FORGING TWISTING MACHINE MT500 A 4
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5.7. Using the equipment ...................................................................................................
5.7.1. Activation of the machine ...............................................................................
5.7.2. Starting up the machine .................................................................................
5.7.3. Machine in StandBy .......................................................................................
5.7.4. Left turning direction ......................................................................................
5.7.5. Machine in StandBy .......................................................................................
5.7.6. Right turning direction ....................................................................................
5.7.7. Machine in StandBy .......................................................................................
5.7.8. Programming the torsion of one piece ...........................................................
5.7.8.1. Finding the starting point ..................................................................
5.7.8.2. Confirm the starting point of the torsion ............................................
5.7.8.3. Definition of the kind of torsion .........................................................
5.7.8.4. Performing the torsion .......................................................................
5.7.8.4.1. Square torsion .....................................................................
5.7.8.4.2. Circle torsion ........................................................................
5.7.8.5. Finishing the torsion ..........................................................................
5.7.8.6. Pulling out .........................................................................................
5.7.9. Machine in StandBy .......................................................................................
5.7.10. Repetition of an existing torsion ...................................................................
5.7.10.1. Selection of the memory to be repeated .........................................
5.7.10.2. Performance of the selected memory .............................................
5.7.11. Machine in StandBy .....................................................................................
5.7.12. Counting of manufactured pieces ................................................................
5.7.12.1. Selection of the memory to be displayed ........................................
5.7.12.2. Delete the counting of manufactured pieces .................................
5.7.12.3. Do not delete the counter for manufactured pieces ........................
5.8. Solution of problems and emergency situations .........................................................
5.8.1. Emergency stop .............................................................................................
5.8.2. Interruption of electrical supply ......................................................................
5.8.2.1. When there was no torsion in process ..............................................
5.8.2.2. When there was a torsion in process ................................................
5.8.3. Loss of reference ...........................................................................................
5.9. Selection of language and model ................................................................................
6. STANDARD TOOLING ............................................................................................................
7. OPTIONAL TOOLING .............................................................................................................
8. DEMOSTRATION OF OPERATIONS WITH MOULDS ...........................................................
8.1. sequence of pictures for the different operations ........................................................
9. MAIN STEPS TO FOLLOW FOR A FAST PROGRAMMING OF THE MACHINE .................
9.1. Starting screen ............................................................................................................
THECHNICAL ANNEX

INSTRUCTIONS BOOK OF FORGING TWISTING MACHINE MT500 A 5
1. INFORMATION ABOUT THE MACHINE
1.1 Machine identification
1.2 Normal usage of the machine
The machine has been basically disigned to shape cold forge materials. It scrolls bars, it makes spirals of
flat bars, etc. All drawings that can be made with a rotary head and a stand point will be easily makeable by
using this machine. It will only be limited by the room it accupies and the engine power.
A set ofstandard tooling is supplied along with the machine, with which you will be able to make most of the
basic shapes. However the manufacturer can provide the user with the fitting mould for the head, so he can
create his own shapes.
1.3 Noise caused by the machine
In this case noise could be considered as non- existent under normall working conditions.
1.4 Vibrations
Like noise, vibrations are almost non-existent for this a fixed machine and it has got a low head rotation
speed.
1.5 Operative’s natural working place
The first zone is the machine bench, to the left of the drive where the twisting operation and the coil
making is made.
Si se produce un accidente por negligencia del operario, por no atenerse a las normas de
seguridad expuestas en el manual, PRADA NARGESA S.L no se hace responsable.
Trademark Nargesa
Type Twisting machine
Model MT500A

INSTRUCTIONS BOOK OF FORGING TWISTING MACHINE MT500 A 6
The second zone is the tooling area, to the right of the drive, where we make shapes by using a rotary
drive and a fulcrum.
1.6. Description of the machine
The machine is equipped with a 5 HP engine and the reductor which transmits rotation to the head by
means of a cog wheel.
It has a box to keep the tooling and a stand table made of a welded and folded steel plate.
1.7. Description of accessories
The basic accessories the machine has are the ones to fit the head to make the different shapes. It is
provided with different stand points, and clamping spots for materials. In the last chapter of this manual
there are a series of operations all of them explained step by step by means of photographs.
1.8. Description of safety devices
Gears and moveable parts are covered with the exception of the rotary head.
Engine power
Three-phased tension
Rotary speed
Twisting maximun capacity
Bending Maximum capacity
Max. scrolling & bending in flat bar
Max. Continued scrolling length
Dimensions
Weight
4 KW / 5,5 CV
230 / 400 V
4 r.p.m.
40 mm o 1 3/8”
25 mm o 1”
50x10 mm o 2”x3/8”
1.620 mm
2220x980x1280 mm
1350 Kg

INSTRUCTIONS BOOK OF FORGING TWISTING MACHINE MT500 A 7
1.9. Basic characteristics of the tooling that can be fitted to the machine
Making sure that the accessories that are to be fitted to the machine have the same clamping so they can
be thrown out or get loose is the only thing to bear in mind to use them.
1.10. Information related to the electrical equipment
The machine has a 230/400V three phase engine, connected star like when the line tension is 400V and
connected in triangle when the three phased line tension is 230V, as it is indicated below:
Star picture Picture triangle
Likewise it is necessaryto change the input transformer terminals for the change of tension. Input 400 V.
(Terminals “0”and “400”). Input 230 V. (Terminals “0” and “230”).
This modification must be carried out in the connector to the electric card.
See the sketch to get the steps in detail:
1.11. Instructions to connect it to the power supply
It must be only connected to one power supply in the indicated source. If the line tension is not the correct
one, then it will be necessary to change the connection of the engine bobins, the frequency inverter must
be replaced by one with three phase 230V input.
It is very important to connect properly tha machine to the ground socket.

INSTRUCTIONS BOOK OF FORGING TWISTING MACHINE MT500 A 8
2. TRANSPORT AND STORAGE
2.1. Transport
Transport will made by means of a forklift truck.
2.2. Storage conditions
The machine should be stored in place with the following requirements:
- Humidity between 30% and 95% without condensation.
- Temperature from –25ºC to +55ºC or +75ºC for a length of time no longer than 24 h.
- It is advisable not to pile up machines or heavy objects on top of them.
- Do not disarm for its storage.

INSTRUCTIONS BOOK OF FORGING TWISTING MACHINE MT500 A 9
3. INSTALMENT AND STARTING UP
3.1. Instrucons to x it
When the machine is put down by the crane it will be necessary to do it correctly so it doesn’t have to be
moved once it is on the floor. If it isn’t possible then put in a moveable base in order to transport it to the
finel proper location.
The machine will be fixed on the floor by its own weight, thus it is very important to put it in a flat and even
surface.
3.2. Admissible outer conditions
- Environmental temperature: Between +5ºC and +40ºC without exceeding +35ºC as average
temperature during 24h.
- Humidity: Between 30% and 90% without water condensation.
3.3. Safety systems for the operative
The final place location for the machine must be estimated counting on the space that the material bar will
be occupating while being shaped.
3.4. Periodicity of revisions
Check up the oil level every 2000 hours of performance.
Never ever touch the material bar while the machine is performing.

INSTRUCTIONS BOOK OF FORGING TWISTING MACHINE MT500 A 10
4. INSTRUCTIONS
4.1. Instructions for the adjustment
This machine hasn’t got any adjustable element with the exception of any kind of repair.
4.2. Residual hazard. Danger caused by fitted elements
Always keep in mind not to put hands in the moveable parts of the head since it may cause the shearing off
of arms or fingers.
4.3. Information about forbidden usage methods
Do not use tooling that are not provided by the manufacturer to prevent from the breaking of any element
that might cause damge to the user.
4.4. Instructions for learning
In order to learn how to use this machine, placing the basic tooling and notice how to place the stand
points, please, see the sequence of pictures in the last section of this manual. There are different thick
parts and tops in the tooling box to adjust the proper height to fit them.

INSTRUCTIONS BOOK OF FORGING TWISTING MACHINE MT500 A 11
5. DETAILED EXPLANATION OF ITS PERFORMANCE
5.1. Introduction
The electronic control system has been designed in a specific way to rule, either MT500A, or MT150A.
Since these two machines have similar characteristics, what’s above will be easily understandable and
therefore, from now on,when we refer to any of them we will just mention a generic name, such as “the
machine”.
5.2. Definition of the system
The plate described has a control zone on its right side, and it is composed by a two lines display with 16
features each, that is to say, a 2x16 display and a 16 keys keyboard with the following functions.
Left turning
Right turning
Control of manufactured pieces or CNT
Escape
Programming
Definition of square torsion
Definition of circle torsion
Pull out
Memory for pieces

INSTRUCTIONS BOOK OF FORGING TWISTING MACHINE MT500 A 12
5.3. Description of the machine control
5.4. Equipment performance
The exposed system offers the possibility to work in two different modes, manual and automatic.
5.5. Manual mode
The machine works on this manual mode on default, however it is to be pointed out that when it comes to a
mass production of pieces in a same memory, the best way is to work on the automatic mode.
In this manual mode it is permitted to turn right and left by using the two buttons mentioned before, so the
user can twist the pieces as he likes.
Performance is as simple as to press one of the buttons, then the lathe turns until the user quite pressing
the button.
Left and right turning of the head. In order to use the machine manually, just press one of
them.
Key to delete the counter of one memory
Press this key to initialize the machine each time is started up or the stop button is pressed.
Press “Escape” key in order to cancel one operation.
This key is used to program the starting point
These two keys allow the selection of the kind of torsion. If the circle torsion is selected then
the machine will only permit the torsion to the left direction.
This key is to validate the programmed extraction
All keys for the memories. They can save up to 8 kinds of torsion. The
head will find the starting point programmed in the memory when one
of these keys is pressed. The second time it is pressed the machine
will start scrolling the programmed torsion. Each memory has its own
counter and it could be set to cero whenever desired.

INSTRUCTIONS BOOK OF FORGING TWISTING MACHINE MT500 A 13
When the user decides that he’s got a good point to start the piece,He inserts it in the mould of the lathe
and makes the torsion of it, either in one direction or the other depending on the selected button.In ordert
oend up the torsion just quit pressing the button that was being pressed.
Now that you have the twisted piece, it is advisable to press the button for “Turning left” or “Turning right”so
the lathe goes back a few degrees, opposite to the direction the torsion had been made, in order to make
the piece goes out easily, all since it is a bit difficult at times to get the piece out of the mould. (Keep in
mind all restrictions according to the kind of torsion, the pulling out will be always carried out the opposite
direction to the one the torsion has been made).
5.6. Automatic mode
The performance principle of the machine is the same one of that in the manual mode, the only difference
is that this mode is used more for the mass production, in which it comes to be a bit slow the use of the
machine in the manual mode.
As in our starting point, the user must specify the starting point of the torsion to be made, once the die has
been inserted in the machine. It is required to press the Programar key (there will appear a message in the
display Reading Define the starting pointof torsion. Then, he must specify the starting point the machine
needs to define the torsion by using the keys for Turning left and Turning right. So when a proper point is
found to introduce the piece in the die stop pres ing the turning button to one or other direction and press
again the Programar (it appears in the display a label reading Define kind of torsion). Once here the user
must select whether he wants to make a circle or square torsion since he has already inserted the piece
into the die This is made by means of the proper button, may be the key for Circle torsion, or the key for
Square torsion (it appears a label on the display reading “Define torsion, NºP:00 Ref:0000”). It is important
to point out that in the circle torsion is only permitted to make torsions to the left direction for safety
reasons. On the other hand, regarding the square torsion, the user can make torsions to both directions,
however once the torsion has been started, it is not possible to go back or change direction until it is
completely finished.
Now the user should be pressing the Turn left , orl Turn right button (keep in mind restrictions regarding
each kind of torsion), to make the torsion of your piece. When you estimate the piece is finished, you
should press the button according to one of the 8 available memories (Buttons for Memory, in order to
register the piece that has been made (a label will show up on the display reading: Registering torsion n.
Ref: nnnn
Afterwards, (another message will show up Reading Do pull out. Now by using the buttons for Turning right
and Turning left the user must specify the required point for the further extraction of the piece.
Then, he must be pressing the button for Turning Right or Turning Left bearing in mind all restrictions
regarding the kind of torsion, the extraction of the piece will be always made in the opposite direction to the
one the torsion has been made. Once the piece has been released, the user should press the button
according to (Pulling out), in order to register the extraction operation on it once it has been carried out.
However it is necessary to point out that in case the extraction operation does not allow to take the piece
out easily, it will be necessary to repeat the whole process for programming the torsion.

INSTRUCTIONS BOOK OF FORGING TWISTING MACHINE MT500 A 14
In order to make the different parst, the only thing to do is follow the steps up to now and then end up the
operation by registering those torsions in th different memories.
It is not necessary to detele one memory in order to make one new torsion once you have all memories
filled since the memory will be automatically deleted just by overwriting on an already existing memory.
In order to repeat one torsion that is already saved in a given memory, just press the button for the memory
that defines the torsion to be made and follow the clear indications that are shown in the LCD display.
Moreover the user has the possibility to control the number of pieces made with each of the 8 memories
that are available For that, when it appears the label Nargesa MT150A, in Stand By or Nargesa MT500A, in
Stand By (depending on tha machine that he’s working with), the user should press the button for Control
of the fabricated pieces (a label will show up on the display Reading Select Memory. Once this has been
done just select the memory to be visualized so a label will show up on the screen Reading: Memory nº:
01, CNT to be deleted. In case the user wants to delete this memory once he has checked the number of
manufactured pieces on it, just press again the control key CNT.
Apart from what has been said up to now, the user has one key to escape Escape which enables him to
go back to the screen on default Nargesa MT150A, in Stand By, which can be used whenever there
ins no torsion in process if it is so, then it is necessary to finish it before going back to stand by.
This system has also a safety device that makes the machine locates the starting point from which all
references are taken, each time the machine is activated after having been stopped. So eventhough the
machine makes a torsion again, it will find the memory that had been chosen for the torsion that is required
now.
It also has a system for automatic control to spots if tha machine has lost the point of reference by any
given reason. It doesn’t usually happen, however just in case, the user must follow the steps that are
clearly indicated onthe LCD display.
Last but no least, it is to be pointed out that the developed system has been designed according to the
safety regulations, and that in case an emrgency stop situation occurs the machine won’t be able to be
used again until it recovers all its normality when it will find the starting point of the machine again
whenever the user presses the button for Escape, according to the new situation and following the
indications given on the LCD display,) in order to guarantee that all refrences are still reliable.

INSTRUCTIONS BOOK OF FORGING TWISTING MACHINE MT500 A 15
5.7. Using the equipment
A graphic way is shown below detailing the steps to follow for reaching a correct performance of the machi-
ne, it comes to be like a part of the previous section. The different screens appearing at each momentwith
the aim of making it easier for the user to understand the functioning of MT150A and MT500A.
5.7.1. Activation of the machine
Picture 1. Screen for starting up the machine.
5.7.2. Starting up the machine
The user presses the “Esc” button
Picture 2. Screen for Initializing
In this moment the machine makes one turn, then it stops to locate its starting point. Then it will take the
references according to thgis point.
5.7.3. Machine in StandBy
Picture 3. Screen for StandBy on default.
ESC FOR
INITIALIZING
NARGESA MT500A
INITIALIZING
NARGESA MT500A
IN STANDBY

INSTRUCTIONS BOOK OF FORGING TWISTING MACHINE MT500 A 16
5.7.4. Left turning direction
The user presses the button for “Left Turning”
Picture 4. Screen for left turning.
5.7.5. Machine in StandBy
Picture 5. Screen for StandBy on default
When the user is not pressing any of the buttons, the machines enters into a StandBy mode.
5.7.6. Right turning direction
The user presses the button for “Right turning””.
Picture 6. Screen for right turning
5.7.7. Machine in StandBy
Picture 7. Screen for StandBy on default
When the user is not pressing any of the buttons, the machine enters a StandBy.
TURNING DIRECTION
LEFT
NARGESA MT500A
IN STANDBY
RIGHT TURNING
DIRECTION
NARGESA MT500A
IN STANDBY

INSTRUCTIONS BOOK OF FORGING TWISTING MACHINE MT500 A 17
5.7.8. Programing the torsion of one piece
The user presses the button for “Programming”.
Picture 8. starting screen to define onetorsion
5.7.8.1. Finding the starting point
The user I can either press te button for “Left Turning”
Picture 9. Screen for left turning
Or press the button for “Right turning”
Picture 10. Screen for right turning
Until it reaches the point he thinks is the proper one to start twisteing the piece.
Picture 11. Starting screen for defining one torsion
5.7.8.2. Confirm the starting point of the torsion
The user presses the button for “Programming”
Picture 12. Screen to define the kind of torsion
DEFINE STARTING
POINT OF THE TORSION
RIGHT TURNING
DIRECTION
RIGHT TURNING
DIRECTION
DEFINE STARTING
POINT OF THE TORSION
DEFINE TORSION
POINT

INSTRUCTIONS BOOK OF FORGING TWISTING MACHINE MT500 A 18
5.7.8.3. Definition of the kind of torsion
The user can either press the button for “Square torsion”, or press the button for “Circle torsion”.
Picture 13. Screen to define the torsion
5.7.8.4. Performing the torsion
5.7.8.4.1. Square torsion
The user ither press the button for “Turning left”, or the one for “Turning right”
Picture 14. The reference shows the current situation of the torsion
Picture 15. Until the piece has reached the desired torsion
5.7.8.4.2. Circle torsion
The user can only press the button for “Turning left”
Piscture 16. The reference shows the current situation of the torsion
Picture 17. The reference shows the current situation of the torsion
Until the piece has reached the desired torsion
DEFINE TYPE
OF TORSION
DEFINE TORSION
REFERENCE: 0001
DEFINE TORSION
REFERENCE: 0543
DEFINE TORSION
REFERNCE: 0001
DEFINE TORSION
REFERENCE: 0076

INSTRUCTIONS BOOK OF FORGING TWISTING MACHINE MT500 A 19
5.7.8.5. Finishing the torsion
The user should press one of the 8 buttons for “Memory”
Picture 18. Screen for finishing the torsion
5.7.8.6. Pulling out
The user can only press the button for “Left turning”, or “Right turning”, according to the torsion direction
Picture 19. Screen for pulling out the torsion
The user should press the buttons for “Pulling out”
5.7.9. Machine in StandBy
Picture 20. Screen for StandBy on default
5.7.10. Repetition of an existing torsion
5.7.10.1. Selection of the memory to be repeated
The user presses one of the 8 buttons for “Memory”, where there is a torsion registered
Picture 21. Automatic screen search of the starting point of the selected torsion
REGISTER TORSION 1
REFERENCE: 0076
MAKE UNLOCK
NARGESA MT500A
IN STANDBY
FINDING THE STARTING
POINT