Withdrawal device

Details Withdrawal device Withdrawal device

B - Operations, Transporting

29

C

B29C 47/00 (2006.01) B29C 47/34 (2006.01) B29C 53/10 (2006.01)

Patent

CA 2162408

ABSTRACT The invention pertains to a withdrawal device for a plastic tubular film manufactured by a blowing method using an extruder including at least one deflection cylinder disposed in alternating sequence with at least one angle bar. In order to prevent the formation of centre wrinkles during the withdrawal of plastic tubular film, at least one varied deflection cylinder and optionally at least one varied angle bar is provided that has a differing cross sectional diameter along its length. Preferably the varied bar has a concave shape, along its length, but it can also be convex. The varied bar or cylinder can also be provided with a hard smooth surface at a central region, and be provided with a roughened surface at end regions. - 1 -

Affiliated with

Also associated with

Rating

Withdrawal device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Withdrawal device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Withdrawal device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1915785