| 摘要 |
The method and machine is shown for the production of rolls or logs of web material. The web material is fed through a nip (5) formed between two winding rollers (1, 3) and wound up around a core to form a roll or log (R) within a winding space defined by said two winding rollers and by a third roller. At the end of the winding of a log, the third roller (7) is temporarily accelerated to locally increase the speed of the web and to put the web material in tension between the third roller and one of said winding rollers. The tearing of the web material takes place because at that moment the incoming web is pinched between a new core and the one winding roller on which the material is driven out.
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