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14. Winders
Coils are produced on double-station winders, except for very large diameter coils (jumbo size) which are produced and used on their own chassis.
There are two configurations of double-station winders:
winding alternates between front and rear stations. The web must be held by a web guide to ensure perfectly vertical side winding on each station;
the two reel positions are located on a barrel which rotates 180° each time the reel is changed, so that winding always takes place in the same position. This eliminates the need for a tape guide. What's more, this configuration enables automatic reel changeover.
The drive is either a constant-voltage asynchronous motor with frequency variation (flux vector control), or a hydraulic motor.
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In-line thermoforming
Bibliography
Software tools
Contour TM Die (EDI)
BEMflow, Boundary Element Fluid and Heat Transfer Simulation Program
Inverted preland Die (Cloeren)
Websites
Octal
Rauwendall
The Madison Group
Verbruggen...
Standards and norms
- Management environnemental. Exigences et lignes directrices pour son utilisation. - ISO 14000 - Nov. 2004
- Food safety management systems – Requirements for all organisms in the food chain. - NF EN ISO 22000 - Oct. 2005
Directory
Manufacturers – suppliers (non-exhaustive list)
Robert Barr, Inc.
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Statistical and economic data
Figure 1 compares the performance of two equivalent systems in terms of instantaneous available flow:
1 production unit, 1,300 kg/h, investment value €1.5 M ;
2 production units...
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