071118 ultralight transfers - misati · troquel. when a transfer is working up to 30 stro. kes per...

MISATI, S.L., Av. de la Riera 15, E-08960 Sant Just Desvern, Barcelona - Spain - Tel. +34 93 440 47 27 – [email protected] - www.misati.com

012118

ULTRALIGHT TRANSFERSTECHNICAL PRESENTATION

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The Company

Since its creation in 1979, Misati has designed and manufactured high-quality pneumatic fastening elements, also known as

pincers & pneumatic clamps. It currently has 25 employees in its headquarters in Barcelona and a wide worldwide sales

network.

Misati is well-known for its premium quality products, its capacity for innovation & research and its eagerness to offer simple,

cheap & long-lasting solutions with its standard products to its customers.

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Misati also offers engineering services to its

customers, either advising them on the use of

its minipincers (application engineering),

revising their projects or developing projects

of transfers for them.

Technology

Misati has its own Research & Development Department, which designs and develops all Misati’s fastening and structural elements used to automate

transfer presses. All Misati’s technology is patented.

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Production Process

Misati’s production process is fully automated with the newest CNC

machining centres, which enable us to manufacture minipincers and

structural elements with the maximum dimensional accuracy at the minimum

cost.

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Distribution Network

Misati has a worldwide sales

network that gives support and

personalized attention (sales

engineers) to customers in

Europe, America and Asia.

Find a Misati’s expert in your

area at www.misati.com

http://www.misati.com/

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Some of our Customers


ULTRALIGHT TRANSFERS


Misati has many years of experience automating

multi-die transfer presses.

Ultralight Transfers


Such experience has allowed us to get a close look

at the real needs of the users of our transfers:

more strokes per minute, more security when

transferring sheets and lower costs.

This is why Misati has developed a new range of

Ultralight Transfers, which give the following

advantages to the user:

Higher production

Lower cost

Fully reliable

Example of an ultralight transfer



Servo presses that are being automated with

Misati’s ultralight transfers can reach more

than 30 strokes per minute .

1. Higher Production


To get 30 parts per minute, it is not enough to have the latest

servo presses or the simplest sheet to stamp.


An excess weight affects negatively the

production of sheets.

Imagen tomada de www.fagorarrasate.com


As there is less moving mass, the transfer moves faster and gets more strokes per minute.

For that reason, our new range of ultralight mountings & brackets –manufactured in technopolymer– contributes to reduce the

total weight of the transfer, thus becoming more productive.



What is technopolymer?

The technopolymer we use is a glass-fibre reinforced polyamide perfect for parts

subjected to severe forces, such as mountings and brackets.

Mechanical properties

• Good elasticity under fatigue and creep

• Impact resistance

• High stiffness, toughness and compactness

• Good performance: static & dynamic loads and

vibrations

• Improved dimensional stability

• High tensile strength. Lower wear

• Repeated production

Environmental friendly

• Recycable

• Pollution-free

• It consumes less energy during production than steel or

aluminium



Physical properties

• Density = 1,56 kg/dm3

• Chemical resistance to solvents, fuels, oils, etc.

• Electrical insulator

• Heat resistance (above 120°C)• Flame-retardant

• Good mechanization

Economic properties

• Reduction in costs: injection

• Cost reduction in the production process: machining, surface finish

and treatment

• Simple maintenance



2. Lower Cost

If the increase in the number of stamped parts is accompanied by a reduction in the cost of the transfer, the stamping company will enjoy higher

benefits. This is why Misati is concerned about developing higher-quality and cheaper products.

Evolution of mountings: They were first made of steel, then aluminium and now technopolymer.

Material: Steel Material: Aluminium Material: Technopolymer


2. Lower Cost

Misati’s ultralight transfers are cheaper for several reasons:

We have the most competitive prices in the market. Thanks to the new designs of our products, the transfer can be made up of less

elements, which are, moreover, cheaper and standard.

Example of some advantages of the new Misati’s pneumatic and electrical connections:

electrical connections have been simplified by using only one connector.


Reduction in production costs.

• Thanks to the technopolymer elements and the new range of energy-efficient and lighter weight minipincers (ref. TIM2-25…)

the ultralight transfer requires less energy to move.

Technopolymer Bracket & Mounting

2. Lower Cost


• Long working life (20 million cycles or 7 years guarantee)

without the need for spare parts.

Misati’s pincers have a needle bearing mechanish

2. Lower Cost


Less hours spent in designing a transfer: as the ultralight transfer is made up of less parts, it takes less time to design it.

If you don’t have enough time or staff to design a

Transfer, Misati’s Engineering Department can do it for

you: you will save time and money and you can be sure

all the elements of the transfer will be correctly applied.

2. Lower Cost


3. More Security

Troquel

Picture of a real accident

As the number of cycles of the transfer increases to get a

higher production (more sheets per minute), it is more

likely that sheets fall down.

If sheets are not well fastened, they will probably slide,

causing serious damages to the die, like the one in this

picture.


For that very reason, high-force pneumatic

minipincers (FP), which are able to reliably

transfer sheets from one die to another, are

required.

Why do sheets slide?

Inertia Force acts in the opposite direction to the

direction of travel of the sheet.

Due to the high acceleration (a), the more cycles per

minute the transfer can reach, the higher the Inertia

Force of the transfer (FI) undergone by the sheet.

Inertia Force

(of the transfer)

FI = m · a

Lower Gripper

Finger

Force made by the pincer FP

Sheet

FrictionCoefficient μ

Displacement of the sheet

FR > FI

Retention Force

(of the pincer)

FR = μ · FP

3. More Security


3. More Security

Troquel

When a transfer is working up to 30 strokes per minute, it is absolutely necessary to have

high-force pneumatic pincers, such as the new TIM2-25-27, capable of fastening and

transferring sheets safely and accurately, even at high accelerations.

180 daN

TIM2-25-27 Pincer


However, a high force doesn’t mean a large size. The narrower and the shorter the

pincer is, the easier it will be to use it in a transfer.

With just 130 mm long and from 15 mm width, pincer TIM2-25 is appropriate to

access to the narrowest cavities of the die.

130 mm

3. More Security

27 mm

TIM2-25-27 Pincer


3. More Security

In order to prevent collisions between pincers and sheets, we have

developed the new centring shovels, which lead the sheet into the pincer.

There are two types of centring shovels, which may be used together:

horizontal or vertical.


Another factor that improves the security and reliability of the transfer is to have the sheet controlled at all times.

- All Misati’s pincers are equipped with a sheet detector.

- Misati recommends to use a pincer with a sheet thickness control device at the first die of the press to control if

one or two blanks are being lifted at a time.

TIML2-25-CE-A1-S1 Pincer TLR3-20-CE-S1 Pincer

3. More Security


Reliability of a transfer can only

be achieved by safely transferring

the sheet from the centring pins

of one die to the centring pins of

the next die.

3. More Security

Internal centring pins

provide more accuracy

and simplicity to the die.



Higher production

Lower cost

Fully reliable


Customer Service


1. Technical Advice: Handbook of Die Design

This Handbook of Die Design for Transfer Presses (free to download

on www.misati.com) has some practical tips to develop really productive

transfers at the minimum possible cost.

• If there isn’t enough space in

the die for pincers to enter, we

will need to use suction pads

instead, although the transfer

won’t make more than 5 or 6

parts per minute.

• Centring pins, guide columns

and other elements may block

the entry path of minipincers or

the movement of the sheet/

transfer.

Handbook of Die Design

Design of dies to develop really productive transfers

Content (examples)



1. Technical Advice: Technical Training Course

List of topics:

1. Transfer handling technology: pincers, shovels & suction pads.

2. Characteristics of pincer handling systems.

3. Requirements for transfer presses dies.

4. Technical study and project of the pincer-holder bar.

5. Factors that help to increase production in a transfer.

6. Assembly and adjustment of a transfer.

Download the full syllabus on www.misati.com

More than a hundred professionals from several countries have attended our “Transfer

Press Stamping Processes Technology” course.



1. Technical Advice: R&D Department and Application Engineering

Misati’s R&D Department will solve any doubts you may

have about your transfer.

How can the sheet be turned?

Which gripper finger can better fasten the sheet?

Does the planned structure have all the degrees of freedom?


2. Technical Study

Misati always makes a Technical Study of the transfer. In this Technical Study we determine:

- the quantity and types of pincers appropriate to the shape of the sheet

- if turning units or linear displacement units are needed and

- the structures at each OP

Our aim is that your transfer can get the highest possible production.


2. Technical Study

This is why the Technical

Study should be made before

designing and building die.

If dies are already finished,

they cannot be changed and

so the resulting transfer may

not be optimal or productive at

all.

The aim of the technical study is that the end user can manufacture as many parts per minute as possible at the minimum cost and without any

incidents that may stop the production of the press.


3. 3D Project

The 3D Project of the transfer is only

made at the customer’s request.

In this stage, we determine the exact

spatial position of pincers and other

elements and we make assembly

drawings.


Thanks to this accuracy and previous work,

the transfer can be assembled in a few hours

with absolute precision.

Example of an assembly drawing

3. 3D Project


Another advantage of making the 3D project is

the chance of detecting possible collisions.

Changing a project may be labourious, but

modifying a die or repairing a collision would be

much more expensive.

This is why Misati makes a simulation of the

transfer motion to detect any possible

mechanical impacts of the pincers.

3. 3D Project


4. Assembly, Adjustment & Verification Service

Misati’s technicians make the mechanical, pneumatic and electrical assembly of the transfer. Then, they make the 3D spatial adjustment of the

pincers and check the geometry of the transfer with regard to the stamped sheets.

Master Sheets will enable us to adjust the

pincer to the right position on the sheet in a

few minutes and with no risk of making a

mistake.

These Master Sheets are marked with the

exact position where the gripper fingers of

the pincers fasten the metal sheet.


5. Putting the Transfer into Operation

Once the transfer is assembled and adjusted, it should be put into

operation. However, putting a transfer into operation may be very

expensive due to:

- Travelling expenses of Misati’s workers.

- Working hours of these workers.

- Number of hours that the press remains stopped.

A downtime press is estimated to cost between 450 and 500 €/h, so

each adjustment can cost up to 6,000 € to the stamping company.

But, what if there is a way to save these costs?


Misati is the only supplier that can deliver assembled Ultralight Transfers. No adjustment is needed, but just a simple start-up that can be made

by the stamping company itself, who will save time and money as well as enjoy an excellent product.



- Verification reports about the geometry of the transfer (the sheet, dies,

etc.)

- 3D drawings of the technical project

- Assembly drawings

- Detailed instructions for assembling a transfer or any of its elements (in

case of replacement, etc.)

When purchasing an assembled transfer, Misati delivers to the end user the Handbook for Putting a Transfer into Operation of his specific

transfer, which includes among other information:



If required, Misati’s expert technicians …

- will go to your facilites,

- will give technical assistance during the

adjustment of your transfer and

- will provide technical training to the staff

of the stamping company so that they can

put a transfer into operation by themselves

in the future.

Misati’s technician Mr. Josep Maiquez putting a transfer into operation.



The result is a finished transfer, which will

only need a quick adjustment before beginning

producing stamped metal parts.



Misati’s Service

Technical advice

Technical studies

3D projects

Assembly, adjustment and

verification service

Putting the transfer into operation


Thank you for your attention.

For more information, please visit our website www.misati.com


071118 ultralight transfers - misati · troquel. when a transfer is working up to 30 stro. kes per...

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