Method and device for singling sheet material
View Patent ↗A method and apparatus for singling sheet material, in particular papers of value such as bank notes, checks, etc., for subsequent processing of single pieces of sheet material. To permit recognition of mix-ups in the singling order, maintenance of the singling order is checked at the place of singling by monitoring whether the next piece of sheet material to be singled is singled.
1. A method for singling sheet material, for subsequent processing of single pieces of sheet material, comprising:
inserting, in a predetermined singling order, sheet material to be singled into an input pocket;
singling, with a singler, the inserted sheet material according to the predetermined singling order;
detecting, with a sensor, at a time of singling, that a first piece of sheet material to be singled in the predetermined singling order has not moved;
determining that a second piece of sheet material was singled instead of said first piece of sheet material; and
taking measures for error correction.
2. A method according to claim 1 , further comprising checking how far the first piece of sheet material is moved at the time of singling.
3. A method according to claim 1 , further comprising checking whether an additional piece of sheet material was also singled at the time of singling.
4. A method according to claim 1 , wherein said taking measures for error correction include stopping said singling.
5. An apparatus for singling of sheet material, for subsequent processing of single pieces of sheet material, comprising:
a singler having an input pocket for sheet material to be singled, the sheet material to be singled being inserted into the singler in a predetermined singling order and singled accordingly;
a first sensor, provided in an area of the input pocket, for detecting, at a time of singling, that a first piece of sheet material to be singled in the predetermined singling order has moved;
a second sensor for detecting at the time of singling whether a second piece of sheet material was singled,
wherein, the apparatus is configured such that if the first sensor detects that the first piece of sheet material has not moved and the second sensor detects that the second piece of sheet material was singled, then error correction measures are taken.
6. An apparatus according to claim 5 , characterized in that the sensor has devices for mechanical detection.
7. An apparatus according to claim 5 , characterized in that the sensor has devices for optical detection.
8. An apparatus according to claim 5 , characterized in that the apparatus for singling is formed by a friction wheel singler.
9. An apparatus according claim 5 , characterized in that the apparatus for singling is formed by a suction air singler.
10. A method for singling bank notes, comprising:
forming a stack of bank notes, having a predetermined singling order, from a plurality of bank note groups, each bank note group including a header card and a plurality of bank notes;
inserting the bank note stack into a singler having an input pocket;
singling the bank note stack according to the predetermined singling order;
detecting, with a sensor, at a time of singling, that a first bank note to be singled in the predetermined singling order has moved;
determining that a second bank note was singled instead of said first bank note; and
taking measures for error correction.
11. A method according to claim 10 , further comprising determining how far the first bank note is moved at the time of singling.
12. A method according to claim 10 , further comprising determining whether an additional bank note was also singled at the time of singling.
13. A method according to claim 10 , wherein said taking measures for error correction includes stopping said singling.
14. A method according claim 10 , wherein said singling is performed by a friction wheel singler.
15. A method according claim 10 , wherein said singling is performed by a suction air singler.