Paper tube curling device
The invention discloses a paper tube curling device. A curling mechanism comprises an upper curling mechanism and a lower expansion mechanism; the lower expansion mechanism comprises a pressing plate,outward expansion plates, a spring ring, screws and nuts; the pressing plate is positioned at the bo...
Saved in:
Main Author | |
---|---|
Format | Patent |
Language | Chinese English |
Published |
18.09.2020
|
Subjects | |
Online Access | Get full text |
Cover
Loading…
Be the first to leave a comment!