Claims
- 1. A sheet-feeding device for delivering printed sheets produced by a printing press, comprising:
a plurality of grippers which grasp the sheets and transport them from the printing press in the direction of a stacking device; and at least one linear motor for transporting said grippers, said at least one linear motor has a stator and a carriage movable on said stator and on which said grippers are secured.
- 2. The sheet-feeding device as defined in claim 1, wherein two linear motors are provided, with a plurality of carriages movable on the stator of each linear motor, and wherein by means of said carriages the printed sheets are grasped on two sides.
- 3. The sheet-feeding device as defined in claim 1, wherein the speed of said carriage is varied by varying the frequency of the alternating current supplied to said stator.
- 4. The sheet-feeding device as defined in claim 1, further comprising:
a control unit, wherein at least one portion of said stator is triggered via current surges and frequency.
- 5. The sheet-feeding device as defined in claim 1, further comprising:
a buffer segment provided for each carriage.
- 6. The sheet-feeding device as defined in claim 5, wherein said buffer segments are drive-free.
- 7. The sheet-feeding device as defined in claim 5, wherein said buffer segment is provided with a triggerable outlet gate for said carriages.
- 8. The sheet-feeding device as defined in claim 1, wherein said stators are disposed along the sheet to be transported.
- 9. The sheet-feeding device as defined in claim 1, wherein said carriages of one stator are synchronized with said carriages of another stator.
- 10. The sheet-feeding device as defined in claim 1, further comprising:
a connecting element, and wherein said gripper is provided according to one of directly on one carriage, and on said connecting element that couples the carriages together.
- 11. The sheet-feeding device as defined in claim 10, wherein two coupled carriages are each disposed on a different stator so that the sheets are grasped on their leading faces.
Priority Claims (1)
Number |
Date |
Country |
Kind |
198 37 095.4 |
Aug 1998 |
DE |
|
CROSS REFERENCE TO RELATED APPLICATIONS
[0001] Pursuant to 35 U.S.C. section 119, this application is a continuation patent application of, commonly owned patent application Ser. No. 09/375,810, currently pending.
Continuations (1)
|
Number |
Date |
Country |
Parent |
09375810 |
Aug 1999 |
US |
Child |
09874275 |
Jun 2001 |
US |