Cutting device and fabricating table having the device

Patent metadata

Field	Value
Publication number	US-2023373123-A1
Application number	US-202118027516-A
Country	US
Kind code	A1
Filing date	Sep 20, 2021
Priority date	Sep 21, 2020
Publication date	Nov 23, 2023
Grant date	—

Abstract

Disclosed is a cutting device ( 1 ) for fabricating a fiber-based shell ( 10 ). The cutting device ( 1 ) has a first mandrel ( 20 ) which can rotate about an axis of rotation (D 1 ) and on which the fiber-based shell ( 10 ) can be arranged. The cutting device ( 1 ) has a knife ( 30 ) which can rotate about an axis of rotation (M). The axis of rotation (D) of the first mandrel ( 20 ) and the axis of rotation (M) of the knife ( 30 ) are adjacent to each other.

First claim

1 . A cutting device ( 1 ) for fabricating a fiber-based shell ( 10 ), in particular a fiber-based container, wherein
the cutting device ( 1 ) has a first mandrel ( 20 ) which is rotatable about an axis of rotation (D 1 ) and on which the fiber-based shell ( 10 ) is arrangeable, and has a knife ( 30 ) which is rotatable about an axis of rotation (M), wherein the axis of rotation (D) of the first mandrel ( 20 ) and the axis of rotation (M) of the knife ( 30 ) are adjacent to each other.

2 . The cutting device ( 1 ) according to claim 1 , wherein the first mandrel ( 20 ) has a drive device ( 21 ).

3 . The cutting device ( 1 ) according to claim 1 , wherein the knife ( 30 ) is mounted so as to be freely rotatable and is drivable by contact with the mandrel ( 20 ) or a fiber-based shell ( 10 ) arranged on the mandrel ( 20 ).

4 . The cutting device ( 1 ) according to claim 1 , wherein the knife ( 30 ) has a drive device.

5 . The cutting device ( 1 ) according to claim 1 , wherein the rotatable knife ( 30 ) is arranged displaceably relative to the first mandrel ( 20 ) such that a distance between the axis of rotation (D 1 ) of the first mandrel ( 20 ) and the axis of rotation (M) of the knife ( 30 ) is adjustable

6 . The cutting device according to claim 5 , wherein the knife ( 30 ) is arranged on a carriage ( 31 ) or is arranged on a pivotable bracket.

7 . The cutting device ( 1 ) according to claim 1 , wherein the cutting device ( 1 ) has a second mandrel ( 40 ) which is rotatable about an axis of rotation (D 2 ) and on which a further fiber-based shell ( 10 ) is arrangeable, wherein the axis of rotation (D) of the second mandrel ( 20 ) and the axis of rotation (M) of the knife ( 30 ) are adjacent to each other.

8 . The cutting device ( 1 ) according to claim 7 , wherein the second mandrel ( 40 ) has a drive device ( 41 ).

9 . The cutting device ( 1 ) according to claim 7 , wherein the knife ( 30 ) is arranged on a rotary plate ( 50 ) for centering between the first mandrel ( 20 ) and the second mandrel ( 40 ).

10 . The cutting device ( 1 ) according to claim 1 , wherein a diameter of the first mandrel ( 20 ) and optionally of the second mandrel ( 40 ) is in each case greater than an inner diameter of the fiber-based shell ( 10 ).

11 . The cutting device ( 1 ) according to claim 1 , wherein a stripping device ( 22 , 42 ) is arranged in a receiving direction (A) after the knife ( 30 ) on the first mandrel ( 20 ) and optionally on the second mandrel ( 40 ).

12 . The cutting device ( 1 ) according to claim 1 , wherein a fan nozzle for the mandrel ( 20 , 40 ) is arranged in a receiving direction (A) before the knife ( 30 ), in particular below the respective mandrel ( 20 , 40 ).

13 . The cutting device ( 1 ) according to claim 1 , wherein the mandrel ( 20 , 40 ) has a resilient, in particular cut-resistant, coating.

14 . The cutting device ( 1 ) according to claim 1 , wherein the mandrel ( 20 , 40 ) has a groove which is shaped corresponding to the cutting edge of the knife so that the knife projects beyond the wall thickness of the fiber-based shell to be cut.

15 . A fabricating table ( 5 ) for fabricating fiber-based shells ( 10 ) comprising a cutting device for fabricating a fiber-based shell ( 10 ), in particular a cutting device ( 1 ) according to claim 1 , wherein the fabricating table ( 5 ) has a first conveying device ( 70 ) for feeding non-fabricated fiber-based shells ( 10 ) and has a second conveying device ( 80 ) for conveying away fabricated fiber-based shells ( 10 ′).

16 . The fabricating table ( 5 ) according to claim 15 , wherein a rotary plate ( 90 ) for conveying the fiber-based shells ( 10 ) to the cutting device ( 1 ) is arranged on the fabricating table ( 5 ).

17 . A fiber-based shell ( 10 ′), in particular fiber-based container, wherein it has a knife-cut fabrication edge.

18 . The cutting device ( 1 ) according to claim 1 , wherein the axis of rotation (D) of the first mandrel ( 20 ) and the axis of rotation (M) of the knife ( 30 ) are at an angle of less than 10° relative to each other.

19 . The cutting device ( 1 ) according to claim 18 , wherein the axis of rotation (D) of the first mandrel ( 20 ) and the axis of rotation (M) of the knife ( 30 ) are at an angle of less than 5° relative to each other.

20 . The cutting device ( 1 ) according to claim 18 , wherein the axis of rotation (D) of the first mandrel ( 20 ) and the axis of rotation (M) of the knife ( 30 ) are parallel to each other.

Assignees

• Alpla Werke Alwin Lehner Gmbh & Co Kg

Inventors

• Müller Florian
• Seppi Simon
• Fässler Manuel

Classifications

• B26D3/166 Primary

  Trimming tube-ends · CPC title

• B26D1/147

  with horizontal cutting member · CPC title

• B26D7/0625

  by endless conveyors, e.g. belts · CPC title

• B26D1/143

  rotating about a stationary axis (B26D1/20 - B26D1/24 take precedence) · CPC title

• B26D7/06

  Arrangements for feeding or delivering work of other than sheet, web, or filamentary form (feeding or discharging sheets, webs, or filaments B65H) · CPC title