Unwinds – Overview & Case Studies | April 26 – 30, 2021April 7, 2021
1 Week Course from April 26 – 30, 2021 | Live Online Course from 11am – 1pm EDT Each Day,
BONUS: Final Class includes Private, 1-on-1 Meeting with Instructor
Join other participants every day for 1 week with Live Classes with the instructor. You will receive a login link via email for the courses and Live Sessions a week before the course begins.
Overview & Case Studies
Unwinds are ubiquitous in roll to roll (R2R) and continuous processes. Reliable splices are key to optimizing cost, productivity and delivered quality to your customer. Unwinds face many challenges:
– Any roll eccentricity or flat spots will cause tension disturbances and lateral shift after a splice.
– Poor tension control results in wrinkles, width changes, or web breaks.
– Lateral shift results in loss of effective width to your customer.
– The quality of the web will degrade due to aging effects in the wound roll. Floppy edges, baggy lanes and web camber are known causes of wrinkles.
– The type of splice selected will directly impact cycle time and the lateral behavior of the web directly after a splice.
This course will describe commercially available unwinds and splice types with their associated benefits and challenges. The selection of components and how they are used will determine how tension is generated and controlled. The man-machine interface and the safety environment of loading and operating an unwind will be presented. The unique challenges associated with turret unwinds and accumulators will be discussed. A dozen real world case studies will highlight how to optimize any unwind process. This course will benefit those who operate, optimize, and select unwinds.
This is an online course that will be presented as Live Online Classes (2-hours, each day for 1 week) with Live Instructor with the class. Live Instructor online every day from 11:00am – 1:00pm EDT (in our Converting School Course Online Platform). On Friday, participants can schedule private sessions in which individual participants can discuss their specific questions with the instructor for a 15-minute private meeting.