September 29, 2017

Why Anistek produce only Servo-presses?



Mono 500 all in one compact aluminium foil containers making machines for the production of alu foil trays for food packaging

If we approach the argument in a parallel way, we can imagine paper and pencil against a modern smart-device (cellphone, tablet, etc..).

Nowdays are quite evident to everybody the benefits of the modern technology: sending an e-mail to the other part of the world against writing on paper and mail it with the postal service. The cost of this technology is now really accesseble, and with the same modern smartphone or tablet you can do so much more than just send a message.

It’s also true, pencil and paper are still there, but there is no game with the newest technology.

This is the key: if a solution offer something more than an existing one, this is called “technology evolution”. Basically a solution of a problem in a new, fastest, valuable, comfortable, safe or smart way than in the past.

When all these key benefit are applied in the industrial device, become more important that in the consumer, in fact, the “funny” aspect of the innovation is really not considered in the business.

The finality of a new industrial equipment are always the same, offer new benefits than in the past:

  • Be faster
  • Be more flexible
  • Be cheaper, or made possible to do the things in a cheaper way
  • Be reliable
  • Be simpler
  • Be smarter ( Industry 4.0 )
  • Be safer
  • Be BETTER

Of course, “better” is the perfect word to define something new against something “existing”.

Servopresses are simply better than traditional mechanichal crank-shaft presses. But let’s have a look in details.

FASTER

Anistek Mechatronic developed the servo technology since 2005. This experience made possible the revolution to came: MONO500, the fastest servopress in the world that can run a 450 ml (No.2 UK) mould in more than 120 strokes per minutes. This is the performance that stop everybody thinking a servopress i slower than a mechanical.

FLEXIBLE

A molde like our BP20T is capable to run multiple kind of aluminium foil mold that include wit no limitations:

  • Wrinkle-wall (single and multy cavity)
  • Smooth-wall (small and big, by the way, the biggest smooth-wall mould ever made)
  • Airline
  • Multi compartment
  • Folded (long travel required)
  • Pet-food

And, just changing the mold

  • Paper trays (bakery)
  • Muffin trays

Basically there are no technical limits to develop new products and made it with the extremely high-flexibility of a servopress.

CONVENIENT

The price are shortly pay-back from the high level of the performance, the continuous run, the esu way to setup, the fast mould change and from dozen of small details that are the key of a big difference in the daily runing of the plant.

RELIABLE & SIMPLER

what is not there will not broke”  Yes, servopress are simpler: a strong and powerfoul servomotor, combined with a simple linear mechanism is all that is in it. No clutch, brake, spring, rotation plugs, crankshaft, strong lubrication, difficult parallel alignment… nothing, all left to the past. All problems that cames from these components will simply not came. It can’t.

SMARTER

The power of the last generation of PLC – PC industrial system will find a perfect application on a servopress. It’s possible to adjust all the working parameters in electronic way. Yes, the setup of a mold will be not anymore a nightmare of loosed hours of setup, just fit the mould on the press, plug the air, done: mold is ready to run because the mold is also intelligent and is self programming the press with the appropriate setup. Easy like play your favorite mp3 music file on the cellphone.

A remote support is also really true, we can offer a full remote control over the plant and suggest the best solution for any production needs.

SAFER

All the servopress are presses, this mean a potentialy dangerous equipments. Yes, but so much less more than a traditional mechanical press, one of the key are the double safety system on the RAM that is completely monitored by the PLC system. Doors and guards are designed to be comfortable to use, and not to be bypassed!

In one word, simply BETTER.

 

I wish to conclude this explanation with an extract from the article authored by Lee Ellard, it’s a bit technical but is a nice description that summarize the key point:

“servo press offers much of the versatility of the hydraulic press, at production speeds often approaching traditional mechanical presses. The stroke, slide motion, slide position, and speed are
programmable to allow many different combinations that can work with a wide variety of dies, part types, and production speeds. Characteristics of a mechanical servo press (flywheel, clutch & brake are replaced by high-capacity motors):
• variable stroke profiles
• precise slide motion and position control throughout the range of the stroke length
• variable, precise slide velocity control, even within a single cycle of the press stroke.
• full working energy at any speed
• programmability of all the above
• full press capacity near bottom dead center of stroke
• in general, greater cycle speeds than a hydraulic press, in many cases approaching
the speeds of a traditional mechanical press
• high accuracy and repeatability
• relatively high initial cost

[..]

Direct Drive

A direct drive system employs proprietary, high-torque, low-rpm motors especially designed for press applications. These motors replace the standard motor, flywheel, and clutch/brake in an otherwise traditional crankshaft type of mechanical press. In either type of servo press, proprietary press controls specifically designed for the servo press achieve a wide variety of stroke and slide movement profiles, while supplying full working energy even at low speeds. Unique profiles can be created by the user and preprogrammed profiles can include:
• cycle

• deep drawing

• swing

• general forming

• multi-pass

• perforation/blanking

• Simulation of link motion

• warm forming

• compound pressing and forging

• deep drawing

With full working energy at any speed and the ability to dwell anywhere in the stroke, servo presses are taking a big bite out of the drawn and formed parts pie.” Full article can be found here (http://stamtec.com/files/Stamtec_PressComparison_wp_v6.pdf).

 

Authored by:

Marco Capra

CEO and founder of Anistek Mechatronic GmbH

29/09/2017

 

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