Tail securing apparatus

Apparatus for securing the unaffixed tail of an elongated roll product to a convolution thereof underlying such tail, comprising:

• frame structure provided by said apparatus, roll-rotating mechanism supported by said frame structure and defining an operating station whereat said mechanism is adapted to freely support said roll product and continuously rotate said roll product about its longitudinal axis in a direction tending to wind said tail thereabout, means for positioning said roll product in an infeed position in transversely spaced relation with said operating station, selectively operable pusher mechanism for displacing said roll product from the infeed position thereof into said operating station, tail-accelerating means located at said operating station for unwinding such tail as the roll product is continuously rotated, selectively fixedly positioned longitudinally-extending spatially-fixed adhesive applicator structure including a plurality of spatially fixed dispensing nozzles disposed in longitudinally spaced relation along said apparatus and each being operative to eject a predetermined quantity of adhesive, said adhesive applicator structure carried by said frame structure at said operating station and in close proximity to said rotating roll product for directly depositing substantially aligned and discrete tail-securing adhesive spots at predetermined locations on the underlying convolution of such roll product during rotation thereof, said discrete adhesive spots adapted to be positioned between said tail and said underlying convolution when the tail is rewound due to the continuous rotation of the roll product by said roll-rotating mechanism, and selectively operable ejection mechanism essentially independent of said roll-rotating mechanism for displacing said roll product from the operating station after said tail has been rewound thereon and adhesively secured to the convolution underlying the same, each of said nozzles being provided with a plunger axially reciprocable between adhesive-filling and adhesive-ejection positions, said apparatus being equipped with reciprocabble actuator structure connected with said plungers for actuating a cycle of operation thereof, and each of said nozzles being equipped with a spring resiliently biasing the plunger toward the adhesive-ejection position thereof, said actuator structure being operative to displace each plunger against the biasing force of its spring and thereafter to release the plunger to enable return thereof to such ejection position under the force of its associated spring.

Apparatus for securing the unaffixed tail of an elongated roll product to a convolution thereof underlying such tail, comprising frame structure provided by said apparatus, roll-rotating mechanism supported by said frame structure and defining an operating station whereat said mechanism is adapted to freely support said roll product and continuously rotate said roll product about its longitudinal axis in a direction tending to wind said tail thereabout, means for positioning said roll product in an infeed position in transversely spaced relation with said operating station, selectively operable pusher mechanism for displacing said roll product from the infeed position thereof into said operating station, tail-accelerating means located at said operating station for unwinding such tail as the roll product is continuously rotated, selectively fixedly positioned longitudinally-extending spatially-fixed adhesive applicator structure including a plurality of spatially fixed dispensing nozzles disposed in longitudinally spaced relation along said apparatus and each being operative to eject a predetermined quantity of adhesive, said adhesive applicator structure carried by said frame structure at said operating station and in close proximity to said rotating roll product for directly depositing substantially aligned and discrete tail-securing adhesive spots at predetermined locations on the underlying convolution of such roll product during rotation thereof, said discrete adhesive spots adapted to be positioned between said tail and said underlying convolution when the tail is rewound due to the continuous rotation of the roll product by said roll-rotating mechanism, and selectively operable ejection mechanism essentially independent of said roll-rotating mechanism for displacing said roll product from the operating station after said tail has been rewound thereon and adhesively secured to the convolution underlying the same, said adhesive structure comprising a plurality of separate adhesive applicator modules each having an adhesive reservoir and being removably secured as a unit to said apparatus, said nozzles being respectively associated with said modules and carried thereby for removable securance therewith to said apparatus, each of said nozzles being provided with a plunger axially reciprocable between adhesive-filling and adhesive-ejection positions, and said apparatus being equipped with reciprocable actuator structure connected with said plungers for actuating a cycle of operation thereof, each plunger being removably connected with said actuator structure to enable each nozzle to be removed from said apparatus.