STEEL BELT BLOG by DYMCO, LTD. : web handling roll

Showing posts with label web handling roll. Show all posts

Friday, March 27, 2015

Exhibition at Plastic Japan

Here in Yokohama, Cherry blossoms season is coming.
Spring is coming in your areas, too?

This is to announce that DYMCO exhibits the 4th Plastic Japan to present solution for plastic process and film handling.

Displayed are:
-Suction conveyor to bring uniform tension on thin film transportation-Double steel belt Heat Press Conveyor-Finely patterned mold-Flexible metal roll and low inertia roll

Date: April 8 to 10, 2015
Place: Tokyo Big Sight
Booth No.: East 1 hall 7-2

We are looking forward to seeing you at this show.

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/

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

Tuesday, November 18, 2014

Web handling rolls #2 of 4

The second roll is 'a low-inertia roll.'
This roll is different from conventional rolls,
for it does not rotate itself,
rather the surface thin-wall sleeve only rotates.

This mechanism is that air splashes out from small holes over the roll core and expands diameter of the surface thin-wall sleeve.
When a film goes through this roll, the surface thin-wall sleeves rotates along with speed of the film.
This is why inertial of this roll is just twentieth and less of the conventional rolls.

In general to gain lower inertia, small-diameter rolls are used for production of thin and wide films. However, this small and long rolls inevitably bow when they receive loads. Here our low-inertia rolls maintain straightness and low-inertia state due to the above structure.

Low-inertia roll
Air is supplied to the roll core

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

Tuesday, November 11, 2014

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.