Title:
METHOD AND APPARATUS FOR COMPENSATING ABNORMAL TENSILE LOADS IN A STRIP OF AN ACCELERATION-GUIDED COILER DRIVE
Document Type and Number:
WIPO Patent Application WO/2011/029799
Kind Code:
A8
Abstract:
The invention relates to a method for compensating abnormal tensile loads in a strip (8) of an acceleration-guided coiler drive consisting of a driving motor (10, 12), a drive shaft (12, 14), and a coiler (4, 6). According to the invention, an actual acceleration (MBM) of the driving motor (10, 12) is determined from a determined actual speed (nM) of said driving motor (10, 12) and is compared with a desired acceleration of the driving motor, said desired acceleration being calculated from a predetermined motor-related desired acceleration. A corrective variable (MKor) is determined from the difference between the actual and the desired acceleration, and said corrective variable (MKor) is superimposed on a generated desired moment of the motor in such a way that the determined difference between the actual and the desired acceleration becomes zero. Abnormal tensile loads are thus corrected, thereby preventing the strip from breaking.
More Like This:
Inventors:
SCHAEFER UWE (DE)
Application Number:
PCT/EP2010/063055
Publication Date:
May 05, 2011
Filing Date:
September 06, 2010
Export Citation:
Assignee:
SIEMENS AG (DE)
SCHAEFER UWE (DE)
SCHAEFER UWE (DE)
International Classes:
B21B37/54; B21C47/00
Attorney, Agent or Firm:
SIEMENS AKTIENGESELLSCHAFT (München, DE)
Download PDF: