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.

Inquiry Form: www.steelbelt.jp/index.php#inq

DYMCO, LTD. URL: http://www.steelbelt.jp

Steel Belt Videos:http://www.youtube.com/results?searcmh_query=dymcooverseas&sm=12

Metal sleeve - 30 micron thick sample sleeve Oct.16, 2017

Hello, DYMCO is good at thin wall metal belts and sleeves.

Today we introduce our sleeve sample.

This sleeves is no-seam by our original flow forming technology.
You do not find any steps on its surface.

This is also light (8 grams=0.018 lb) and elastic like this picture.
http://www.steelbelt.jp/product/roller/ultra_thin_metal_sleeve.php

The sample sleeve is stainless steel,
thickness 35 microns
inside diameter 30mm = 1.18"
length 270mm = 10.63"

They are free of charge when shipping cost is paid.
This shipping is up to two sleeves to one customer.
If you get interested in, please email to us
overseas@dymco.co.jp
or contact from this page www.steelbelt.jp/index.php#inq

Steel belt video: http://www.youtube.com/results?search_query=dymcooverseas&sm=12

   DYMCO, LTD URL http://www.steelbelt.jp

 

2016.11.30 Awarded: Yokohama intellectual property mirai company

Dymco is honored to announce that we were approved as Yokohama intellectual property mirai company on Nov. 30^th.
This is a Yokohama City’s official title for the potential local businesses seeking for the further development through the management of intellectual property.

A company approved with this title can get an official support from Yokohama City. Thankfully, we have been approved for this title for several years straight.

For recent few years, Dymco has concentrated our efforts on expanding our business to the production of processing systems from belt supply.  Through the expansion of our business, we have faced many hurdles, such as the management of intellectual property including patent. But, We decided to work harder than ever, to achieve the further development.

Source of this activity lies in technical demands from customers and  forunners to confront unexperienced needs.


We introduced TRIO, three steel belt-based processing systems to the flexible electronics industry.
1. Double steel belts heat and press system
     https://www.youtube.com/watch?v=ZFNu_2AYDH4
2. Suction conveyor
     http://www.steelbelt.jp/product/kyuchaku_belt.php
3. Steel belt takt drive system
     https://www.youtube.com/watch?v=3KNRgSFFeA0


And now, we add one more item, a pattterned belt that continuously trascribes its fine patterns on to the incoming material.



Thin metal sleeve with micro pattern on its surface

This way steel belts are leading process for finer electronics circuits, devices and printing electronics. 
Therefore, this might sound exaggerating though, there’s opportunity to develop the new intellectual property. So we are working hard to respond customers’ inquires every day.

Email: overseas@dymco.co.jp
Steel belt video: http://www.youtube.com/results?search_query=dymcooverseas&sm=12

                         DYMCO, LTD URL http://www.steelbelt.jp
 

Web handling low inertia roll

As a variety of plastic films are developed for wider applications, thinner films are  being produced.
In these production, demand for lower inertia becomes apparent for feeding rollers.  Here we ntroduce our low-inertial roll.

 １．Structure of the low inertial roll
This roll is made up by the core roll and theouter sleeve. Its uniquness is that the core roll does not rotate.  Air goes in from the edge of the core roll axis and goes out of holes along core roll surface.  Due to this air flow the outer sleeve sweels and there appear clearance between the core roll surface and the outer sleeve.  Then the outer sleeve only begins to rotate, free of any resistance.

The outlook of the low inertia roll:  The outer surface is thin metal sleeve.  This sleeve only rotates.  The blue right end is the air inlet.

 ２．Conparison of inertia with the conventional web handling rolls

The right one is the conventional roll.  This is made by steel, 1200mm long, diameter 100mm, thickness of the roll area is 6.0mm.  The left one is our low inertial roll, 1200mm long, diameter 100mm, thickness of the outer sleeve is 0.125mm.  When inertia of our roll is 1, inertia of the conventional roll is 48.   

 ３．Effects of the low inertia roll
 The big benefit is improved production effectiveness by film conveying speed increase.  In general, when the roll diamer is long and weight is heavy, inertia becomes larger.  Also there appear speec difference between a conveyed film and roll rotation speed.  So there is limitation in film conveying speed.  Our roll is made up by the thin and light outer sleeve.  This light sleeve can follow the film speed, which increase speed of the entire line.

 

Other merits are 'being clean' and scratches become less due to lower stress between the roll and a film.





 

Email: overseas@dymco.co.jp

Steel belt video: http://www.youtube.com/results?search_query=dymcooverseas&sm=12

DYMCO, LTD URL http://www.steelbelt.jp

Blog http://dymcosteelbelt.blogspot.com/



 

Web handling rolls #1 of 4

We have delvelped several types of metal rolls in the area of web handling  through discussions with customers.
They are classified in to 4 product categories. 
 

1. Air roll

2. Low-inertia roll

3. Fine patterned roll

4. Sleeves to hold magnetic parts insdie the forming roll

Today we talk about the first product category, Air roll.

Air roll is composed of a shaft, air, and the outer thin-wall metal sleeve.
Air is supplied from the outside and stays between a shaft and the outer meta sleeve.  This air supports the outer metal sleeve.  When this air roll is pushed by the other roll to form plastic, the metal sleeve surface yields and goes back to a flat state when it is not pushed.  This can happen because the outer metal sleeve is very thin and its tensile strength stands againt this pressure.  So this metalsleeve is flexible and provides nipping like rubber roll.  WHen this air roll is introduced, cooling and heating conditions are changed, which improves the entire forming conditions including rolling and strretching.

Air roll
THe outer surface metal sleeve, thickness 0.1mm, is flexible like rubber.



The producible range of the outer metal sleeve is form 19.8 to 260mm in diameter.

Email: overseas@dymco.co.jp

Steel belt video: http://www.youtube.com/results?search_query=dymcooverseas&sm=12

Contact by email: overseas@dymco.co.jp

URL http://www.steelbelt.jp

Blog http://dymcosteelbelt.blogspot.com/

Facebook: http://www.facebook.com/dymco.limited