[54] REWINDING MACHINE FOR CORELESS WINDING OF A LOG OF WEB MATERIAL WITH A SURFACE FOR SUPPORTING THE LOG IN THE PROCESS OF WINDING
[75] Inventor: Guglielmo Biagiotti, Lucca, Italy
[73] Assignee: Fabio Perini S.p.A., Lucca, Italy
[21] Appl. No.: 193,954
[22] Filed: Feb. 9, 1994
[30] Foreign Application Priority Data
Feb. 15, 1993 [IT] Italy FI93A0021
[51] Int. CI.6 B65H 18/14
[52] U.S. CI 242/541.2; 242/DIG. 2;
242/DIG. 3
[58] Field of Search 242/521, 541.2,
242/541.6, 542.2, DIG. 2, DIG. 3
[56] References Cited
U.S. PATENT DOCUMENTS
2,573,188 10/1951 Dyken 242/541.6 X
2,775,410 12/1956 Schwartz et al 242/541.2
3,850,381 11/1974 Moore 242/541.2
4,102,512 7/1978 Lewallyn 242/541.2
4,408,727 10/1983 Dropczynski 242/521
4,487,377 12/1984 Perini 242/521
4,909.452 3/1990 Hertel et al 242/521
5,031.850 7/1991 Biagiotti 242/521
5,172,871 12/1992 Schutt et al 242/541.2 X
5,222,679 6/1993 Dropczynski el al 242/521
5,368,252 11/1994 Biagiotti 242/521
FOREIGN PATENT DOCUMENTS
0326528 8/1989 European Pal. Off 242/541.6
Primary Examiner—Daniel P. Stodola
Assistant Examiner—Emmanuel M. Marcelo
Attorney, Agent, or Firm—Francis J. Bouda
[57] ABSTRACT
A rewinding machine for the production of logs (R) of web material (N) without a core comprises: a first winding roller (1) onto which the web material is fed; a second winding roller (3) rotating in the same direction as the first roller and forming a nip (4) therewith through which the web material passes; an actuator and element (15,17) to move the surface of the second winding roller (3) toward the first winding roller (1); and a separator to sever the web material at the end of the winding thereof to form a log (R). Provision is also made for a surface (21, 21 A) supporting the log (R2) in the process of formation and located upstream of the nip (4) between the rollers (1, 3).
8 Claims, 6 Drawing Sheets
