| 摘要 |
An improved device for gluing the end flap of a log and a gluing method which can be implemented in a machine for producing logs, in which the logs ( 14 ), which come from a re-reeling machine, are fed to a gluing device ( 11 ) comprising in succession a bottom unwinding roller ( 16 ) and a top feed belt ( 17 ), and, immediately downstream of the unwinding roller ( 16 ), at least one stretch of inclined surface ( 21 ), of a pre-set length, followed by a vacuum-suction roller ( 24 ), set on top of which is a top roller ( 25 ), and then by a glue dispenser ( 27 ), there being provided on top of the unwinding roller ( 16 ) a blower element ( 19 ) for blowing an end flap ( 29 ) of the log ( 14 ) and, underneath, a photo-electric cell ( 20 ) for detecting the end flap ( 29 ), in which the log fed to the unwinding roller ( 16 ) is set with a position of the free end staggered by an angle (alpha), which is a function of the diameter of the log and of the pre-set length of the stretch of inclined surface ( 21 ), in such a way that, when the log thus positioned rolls on the inclined surface, it sets itself on the suction roller ( 24 ), with the free portion of the end flap ( 29 ) set exactly corresponding to the area of contact with the suction roller ( 24 ).
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