Wednesday, January 29, 2020

Simple Air Roll to Elastic Cooling Roll

Simple Air Roll to Elastic Cooling Roll

 Air roll was developed about 20 years ago.
It was very simple structure.  The outside is a metal sleeve and inside air pressure is kept.
It has metal surface, yet possess elasticity like rubber.
Test unit to compare  "rigid cooling roll (front)" and
"elastic cooling roll  with a chiller (back)"
However, requirements are getting higher and more difficult in production of plastic sheets and films now.  
To this needs DYMCO succeeded to set a rubber roll inside the metal sleeve so that the air roll can stand different pressure.

Popular rigid rolls, their thickness is 7 to 8mm, very thick.
The metal sleeve thickness of our elastic rolls is only 0.2 to 0.3mm.
Thin surface brings superior heat transfer efficiency.
Also with nipping by thin metal, contact surface between the roll and film becomes wider.
All these contribute to cooling efficiency.  
We see a possibility that the cooling line becomes shorter.

For details, please contact us.


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Tuesday, January 28, 2020

Metal Belt Suction Conveyor

Metal Belt Suction Conveyor

Last December we exhibited Highly-Functional FILM EXPO at Makuhari Messe.
We had chances to have good discussion with many visitors.
Every year overseas visitors are increasing, especially from China.
We could guess there active markets and technical needs there.

Is it difficult to convey thin functional films in flat state.
Visitors having such an issue watched and touched the belt surface of our suction conveyor.
We felt various need are coming up as films are getting more functional and the total process becomes complicated.

DYMCO at Highly-functional FILM EXPO and our suction conveyor
 
Also displayed were disposable version of seamless molds and Double Belt Heat Press Unit.
We wanted to show that very expensive pattern molds can be replaced with its replica and that two metal belts can sandwich films to laminate them or to cause special features by heating and pressing.
   
If you have a chance to come to Yokohama, Japan, please try your visit to DYMCO.
You can test suction transport, heat and press transport, and touch various metal belt conveyors.

 
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Friday, January 17, 2020

Great Potential in Metal Belts

Great Potential in Metal Belts

Our management and accountants often talk with people working banks and finacial industries. 
They pay attention to our metal belts, too,
for our belts are unique and great potential to creat new markets.
Those belts are like the ones in the pictures below.


Suction / Vacuum Conveyor for web handling 
Metal Sleeves for Film Forming
Our belts are expected to creat and handle new functional matrials.

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Wednesday, January 8, 2020

10-Micron Thick Nickel Elctro-Formed Seamless Belt

10-Micron Thick Nickel Elctroformed Seamless Belt
 

Thickness is controlled in micron order.
Completely seamless cylinder.
These re features of our Nickel electroformed belts.

How are these benefits wonderful?
As rigidity is proportional to the cube of the thickness,
the thinner steel belt can go around the smaller diameter pulleys.
Belts are tensile and capable to accept bending stress.

Our stainless steel welded belts, thickness ranges 0.05ｔ～0.6ｔ (mm).
However, this time we challenged thinner belts by electroforming and made a sample of thickness only 10 microns.

The belt goes along with a rod of Φ5mm
 
Nickel Seamless Belt Sample 0.01t×100W×380L
 
10-micron thick
 
What will be applications of this belt?

A belt in a limited space such as in micro machines
Knife-edge, very small R belt
Thin-wall cylinder shell
Electromagnetic wave shielding films
Special molding dies

We will develop electroforming technology of Nickel belts.




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Monday, January 6, 2020

New Year message from the president of Dymco


New Year message from Tetsuo Taga, the president of Dymco, a steel belt supplier:


Happy New Year

In the first new year of the Japanese calendar Reiwa, I sincerely thank all the people who supported Dymco in various opportunity.

In the spring of this year, the business application of anticipated 5G telecommunications standard will start with the active alignment and realignment of IT businesses including overseas partners.

Now in the new era of Reiwa, we encounter an industrial revolution equal to the Industrial Revolution in 18th century with this technology evolution.

The 5G system magnifies line speed and memory capacity 100 times compared with current 4G system, and accelerates the technology evolution.

On the other hand, Japanese schoolchildren’s reading comprehension level has fallen to 15th place in the international achievement survey. Japanese media picks up on this issue as the lack of ability to read and understand. I am worried a little about future. There must be some influence of computer network and smartphone. It is important for us to preserve carefully the thinking time in stead of instant reply obtained in 5G environment in order to maintain reading and understanding capability. Returning to the principle of the thing must be essential to avoid the ill effect of pursuing excessively convenient tools.

This year is the Year of the Rat. A rat is a prolific animal and the symbol of prosperity. My goal is also the inheritance of prosperous business to the next generation.


May the new year bring you prosperous opportunity and happiness!


2020 New Year’s Day

Tetsuo Taga / Dymco





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Thursday, December 26, 2019

From Sheet-to-Sheet Press to R2R Double Belt Heat Press

From Sheet-to-Sheet Press to R2R Double Belt Heat Press

 
The year of 2019 is going to be closed.
We had many guests here this year. 
Many of them brought their special material and we did experiments and evaluation together here.
 
Some of them found DYMCO web site in their Internet search or got info from our blog and were motivated try tests at DYMCO lab.
 
One of issues of our clients is how to shift to the volume production that includes heating, pressing and cooling.  Ordinary machines cannot produce a lot, covering these process.
Here we suggest you to examine our Double Belt Heat and Press Unit.
 
Like an illustration below, the post guide press machine on your left presses the work one by one.
Volume production cannot be expected.
The unit on your right, however, 2 belts continuously heat, press, and cool the work n R2R basis.
Volume production and production cost decrease are gained. 
 
 



Cross Section of Post Guide Press (left) and Double Belt Heat Press (Right)
In Double Belt Unit there are 3 process, Orange Area 1 preheating, Orange Area 2 Heating, and Blue Area of Cooling.
 

This heat and press test involves 3 elements of temperature, pressure and time.  We cannot easily guess the results.  So why not come hear and see what happens?
 
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Friday, December 20, 2019

Did You Touch a Welded Area of Metal Belt?

Did You Touch a Welded Area of Metal Belt?

 We make metal endless belts by butt welding.
You may wonder 'Is the welding line really beautiful?'
 
We prepare for wedling samples so that you can see and touch its flatness.
They are right in the picture below.

 
 
 
From the front, thickness is 0.05mm, 0.08mm, 0.1mm, 0.15mm, 0.2mm, and 0.3mm.
 
If you need flatter state, we can offer polishing on the welding line.

 
 

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