Abrégé

A method for cutting and connecting two bands end to end and which are at a stop, namely a first band ensuring the feed, and a second replacement band, in an unrolling machine including a cutting and connecting device including two connection assemblies arranged symmetrically with respect to a cutting and connection plane is provided. Utilizing the unrolling machine the method includes preparation of the second band, then immobilization of the bands in the plane, of simultaneous and transverse cutting of the latter, of disengagement of the cut portions not to be connected, and of end-to-end connecting of the cut portions thereof to be connected. A cutting and connecting device and a machine enabling the implementation of the method is also provided.

Classes IPC  ?

• B65H 19/18 - Fixation, p. ex. par collage, de la bande de remplacement à celle qui se termine
• B65H 19/20 - Coupure de la bande qui se termine
• B65H 19/14 - Accumulation d'un surplus de bande pour alimenter la machine pendant le changement de bobine
• B65H 19/10 - Changement de la bobine dans les mécanismes de déroulage ou en liaison avec les opérations de déroulage

Abrégé

The method involves preparing an end of a new band of a new bobbin (6), and fitting a gluing joint on a connection assembly (4). Another gluing joint to be transferred is mounted on the connection assembly corresponding to a bobbin (8) unrolling a completed band. The bobbin (8) is stopped, and a junction is formed by gluing the new band with a section of the completed band using connections of the connection assembly. The unrolling of the new bobbin is started. An independent claim is also included for an end-to-end cutting and gluing device for an unrolling machine.

Classes IPC  ?

• B65H 19/20 - Coupure de la bande qui se termine

Produits et services

Machines for winding and unwinding rolls of all materials with roll tension control facility; handling apparatus and machines; machine tools. Hand tools and implements. Paper and articles of paper; cardboard and articles of cardboard.