FEATURE NEWS:
Dual ribbon DRT 55 take-up
Nextrom’s DRT 55 take-up offers continuous processing at a constant speed, which allows the use of long batch lengths and improves productivity and quality. Even in today’s factories many ribbon lines run with single take-ups, thereby limiting the line uptime. To fill this gap, therefore, Nextrom has developed a dual take-up that can be integrated into any existing ribbon line.
Replacing a conventional single take-up with a dual take-up increases the capacity, reduces scrap and decreases labour costs.
The capacity increase is due to the fact that there is no need to slow the processing speed down, as transfers from full reels to empty ones can be carried out at pro-duction speeds. Also, the longer the pay-off fibre length, the greater the capacity increase.
On the other hand, the amount of scrap is minimised as there is no need to stop the line as long as there is fibre left on the pay-offs. This also reduces process risks, since at start-up there is always the chance that something will go wrong.
In addition, there is less operator interaction, since threading the take-up is not needed when changing the take-up spools.
This new dual take-up for ribbon lines is based on a high-speed fibre dual take-up. There are also two identical traversing take-ups. The transfer mechanism consists of a gripping and cutting mechanism, and horizontally moving conveyor pulleys.
The new development focuses on the gripping and cutting mechanism, which is now optimized for from 4- to 12-fibre ribbons. The same mechanism can be later modified for up to 24-fibre ribbons. Mechanical modifications were mostly related to the guiding of the ribbon and the flange design.
The trials focused on 12-fibre ribbons, but part of the trials was also run with a 4-fibre bundle to demonstrate usability with EPFU (blown fibre).
Most of the trials were run at a speed of 500m/min and eventually with a 100% success rate, says Nextrom.
Company: |
Nextrom Oy |
Country: |
Finland |
Fax: |
+358 9 5025 3003 |
Email: |
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Website: |
www.nextrom.com |