Abstract

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.

IPC Classes  ?

• B65H 19/18 - Attaching, e.g. pasting, the replacement web to the expiring web
• B65H 19/20 - Cutting-off the expiring web
• B65H 19/14 - Accumulating surplus web for advancing to machine while changing the web roll
• B65H 19/10 - Changing the web roll in unwinding mechanisms or in connection with unwinding operations

Abstract

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.

IPC Classes  ?

• B65H 19/20 - Cutting-off the expiring web

Goods & 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.