Title:
切断ユニット
Document Type and Number:
Japanese Patent JP6393456
Kind Code:
B2
Abstract:
A cutting unit according to the invention comprises a stationary frame (1), a cutting drum (5) having a cutting knife (7) on an outer cylindrical surface thereof and a central axis, and an anvil drum (6) having an outer cylindrical surface and a central axis. The cutting drum (5) and the anvil drum (6) are arranged one over the other with parallel centre axes for cutting web material fed between them. The upper of the cutting drum (5) and the anvil drum (6) is centred on an arbour, which is rotatable supported in the stationary frame and connectable to a driving device for rotating the arbour and the upper drum around the centre axis thereof. The lower of the cutting drum and the anvil drum is arranged rotatable around the centre axis thereof, and is arranged movable towards and away from the upper drum. The cutting unit further comprises a carrier (16), which is arranged movable towards and away from the upper drum. The carrier (16) comprises at least two contact rollers (19), which have an outer cylindrical surface and which are arranged rotatable round a respective axis in the carrier, which axes are parallel to the centre axis of the cutting drum (5) and the anvil drum (6). The lower drum is shaftless and is arranged with the outer cylindrical surface thereof resting on the outer cylindrical surface of the at least two contact rollers (19), wherein at least one contact roller (19) is situated on either side of a central vertical plane of the lower drum for providing vertical and transversal support of the lower drum by the contact rollers only. The carrier (16) is connectable to a pressing device for moving and pressing the carrier (16) and the lower drum carried thereby towards and against the upper drum for providing cutting pressure between the upper drum and the lower drum.
Inventors:
Arnaud Plus
Mergola Luigi
Mergola Luigi
Application Number:
JP2013093925A
Publication Date:
September 19, 2018
Filing Date:
April 26, 2013
Export Citation:
Assignee:
Sandvik Intellectual Property Actie Borag
International Classes:
B26F1/38; B26D1/40; B26F1/44
Domestic Patent References:
| JP2001062775A | ||||
| JP2008534309A | ||||
| JP6155375A |
Foreign References:
| US5156076 | ||||
| US5388490 | ||||
| US7299729 |
Attorney, Agent or Firm:
Sonoda/Kobayashi Patent Business Corporation
Atsushi Aoki
Takashi Ishida
Tetsuji Koga
Satoshi Deno
Yoshihiro Kobayashi
Yasuo Dogaki
Atsushi Aoki
Takashi Ishida
Tetsuji Koga
Satoshi Deno
Yoshihiro Kobayashi
Yasuo Dogaki