US 5,289,985 AGranted

Device for changing reels of strip material on a production machine

AssigneeG.D Societa' Per Azioni

InventorsLorenzo Cocchi, Antonio Gamberini

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Abstract

A device for changing reels of strip material on a production machine, whereby a traction device unwinds a first strip off a runout reel on a supporting spindle and feeds it to the production machine along a given path; a standby reel is supported on edge on a saddle defined by two rollers; and a swing arm supports a powered disk with suction cups and a locating spindle. As the first strip runs out, the standby reel is made integral with the disk by the suction cups; the disk is accelerated so as to wind a second strip, identical to the first, off the standby reel and through a guide device by which the second strip is inserted into the traction device; and the swing arm loads the standby reel on to the axially-sliding supporting spindle in place of the empty reel.

Claims7

Dependent claims

A device for changing reels of strip material on a production machine, said device comprising, in a first operating position, a spindle for supporting a runout reel off which a traction device unwinds and feeds a first strip to the production machine along a given path;

means for supporting a standby reel in a second operating position;
means for unwinding a second strip, identical to the first strip, off said standby reel and through a guide device located along said given path of said first strip and designed to feed the second strip on to the traction device when the first strip runs out;
and a swing arm supporting means for gripping and supporting the standby reel;
characterized by the fact that said means for unwinding the standby reel and said means for gripping and supporting the standby reel consist of a powered element fitted to said arm so as to rotate about an axis parallel to the axis of said supporting spindle, and having gripping means for gripping and rendering the standby reel integral with the powered element, and a locating spindle coaxial with the rotation axis of the powered element and so designed as to only cooperate with an input portion of the core of said standby reel;
said swing arm being designed to transfer said standby reel from said second operating position on to said spindle supporting the runout reel, when said first strip runs out.

2 more elements

Dependencies are inferred from the claim text.