Solenoid-powered conveying device

1. An electromagnet-operated conveying device

comprising:

a movable conveying element;

at least one permanent magnet arranged on the conveying element for onward movement of the conveying element; and

a cleaning device configured to remove particles from a surface of the at least one permanent magnet, wherein

the cleaning device includes a first rotatable roller;

the first rotatable roller is magnetizable with a magnetic field strength that is higher than a magnetic field strength of the at least one permanent magnet;

the cleaning device further includes a second rotatable roller and a circulating belt; and

the circulating belt encloses the first rotatable roller and the second rotatable roller.

2. The conveying device as claimed in claim 1 , wherein:

the cleaning device is disposed at a fixed location; and

the at least one permanent magnet is configured to be led past the cleaning device during the onward movement of the conveying element.

3. The conveying device as claimed in claim 1 , further comprising:

a control unit configured to drive the first rotatable roller at a roller speed,

wherein the at least one permanent magnet is configured to be led past the first rotatable roller at a magnet speed, and

wherein the roller speed corresponds to the magnet speed.

4. The conveying device as claimed in claim 1 , wherein the first rotatable roller and the second rotatable roller are vertically arranged.

5. The conveying device as claimed in claim 4 , further comprising a separating device configured to separate the particles removed from the surface of the at least one permanent magnet by the cleaning device.

6. The conveying device as claimed in claim 4 , further comprising a receiving apparatus configured to receive the particles removed from the surface of the at least one permanent magnet.

7. An electromagnet-operated conveying device, comprising:

a movable conveying element;

at least one permanent magnet arranged on the conveying element for onward movement of the conveying element; and

a cleaning device configured to remove particles from a surface of the at least one permanent magnet, wherein:

the cleaning device is a cleaning device having an adhesive force;

the cleaning device includes a first rotatable roller, a second rotatable roller, and a circulating belt; and

the circulating belt encloses the first rotatable roller and the second rotatable roller and has the adhesive force.

8. The conveying device as claimed in claim 7 , wherein:

the conveying device is a planar drive conveying device that includes an electromagnetic transport surface configured for planar movement of the conveying element;

the electromagnetic transport surface has a gap; and

the cleaning device is arranged in the gap.

9. The conveying device as claimed in claim 7 , wherein the first rotatable roller and the second rotatable roller are vertically arranged.

10. The conveying device as claimed in claim 7 , further comprising:

a control unit configured to drive the first rotatable roller at a roller speed,

wherein the permanent magnet is configured to be led past the first roller at a magnet speed, and

wherein the roller speed corresponds to the magnet speed.

11. The conveying device as claimed in claim 7 , wherein:

the cleaning device is disposed at a fixed location; and

the at least one permanent magnet is configured to be led past the cleaning device during the onward movement of the conveying element.

12. A method for cleaning at least one permanent magnet of an electromagnet-operated conveying device the at least one permanent magnet arranged on the conveying element for the onward movement of the conveying element, comprising:

leading the at least one permanent magnet past a cleaning device configured to remove particles from a surface of the at least one permanent magnet;

rotating a circulating belt of the cleaning device, the circulating belt enclosing a first roller and a second roller; and

picking up the particles with the cleaning device onto the circulating belt.

13. The method as claimed in claim 12 , further comprising removing the particles from the cleaning device.

14. The conveying device as claimed in claim 12 , wherein the first rotatable roller and the second rotatable roller are vertically arranged.

15. The method as claimed in claim 12 , wherein picking up the particles with the cleaning device onto the circulating belt comprises:

magnetically picking up the particles with the cleaning device onto the circulating belt.

16. The method as claimed in claim 12 , wherein picking up the particles with the cleaning device onto the circulating belt comprises:

adhesively picking up the particles with the cleaning device onto the circulating belt.