Plant for handling reels of paper or similar and for converting thereof and carriage for handling said reels
AssigneeFabio Perini S.p.A.
InventorsAngelo Benvenuti, Valter Di Nardo, Gabriele Pacini
Life of this patent
Estimating the term…
Abstract
The plant comprises in combination at least one winder (3) which receives at least one web material and produces large diameter reels (B) by winding said web material around winding mandrels (M); at least one unwinder (9) which unwinds said large diameter reels (B) and feeds the web material to a transformation line (15, 21, 23); a plurality of carriages (11), which transfer said reels from a loading station (7) towards said unwinder (9), support said reels in the unwinder during unwinding and convey the finished mandrels towards a recovery area.
Claims41
A plant for the production of logs of web material, comprising in combination at least:
- one winder (3) which receives at least one web material and produces large diameter reels (B) by winding said web material around winding mandrels (M);
- at least one unwinder (9) which unwinds said large diameter reels (B) and feeds the web material to a converting line (15, 21, 23);
- a plurality of carriages (11) which transfer said reels from a loading station (7) to said unwinder (9), sustain said reels in the unwinder during unwinding and convey the finished mandrels back to a recovery area.
Plant as claimed in one or more of the preceding claims, comprising a continuous paper machine (1) for the production of said web material, which consists of at least one ply of paper, in particular tissue paper.
Plant as claimed in one or more of the preceding claims, in which said unwinder comprises two stations for two of said carriages (11).
Plant as claimed in one or more of the preceding claims, comprising a parking area (13) for reels produced by said winder, when said unwinder is not able to receive said reels.
Plant as claimed in one or more of the preceding claims, in which said carriages comprise a device for locking the mandrels on which said reels are wound.
Plant as claimed in one or more of the preceding claims, in which said carriages comprise motorized members to rotate the mandrels and angularly position the reels arranged on them.
Plant as claimed in one or more of the preceding claims, in which a guide (26) is provided in said loading station for unloading the finished mandrels from the carriages (11).
Plant as claimed in one or more of the preceding claims, in which said carriages are self-moving and remote-controlled.
A carriage for supporting reels of web material wound on mandrels, comprising a rolling track (31A) of said mandrels and a device for locking said mandrels, to retain the mandrels with the reels formed on them in a position along said rolling track.
Carriage as claimed in one or more of the claims 31 to 36, in which said oscillating lever (35) is combined with a shock absorber (39).
Method for producing reels of web material and transforming said reels into finished products, comprising the following phases:
- winding said web material around winding mandrels (M) and forming said reels;
- loading the reels (B) on respective movement carriages (11);
- transferring the reels by means of said carriages to an unwinder;
- supporting the reels by means of said carriages during unwinding;
- transferring via said carriages the finished mandrels from the unwinders to a mandrel recovery area.
Dependencies are inferred from the claim text.