Apparatus for applying adhesive on tubular cores for rolls of web material and for feeding same cores to a web winding machine

Abstract

A machine is disclosed for applying adhesive to the small, tubular cores on which paper webs are wound for the manufacture of toilet paper, kitchen towels and the like. The machine also moves the cores from the hopper, and after adhesive is applied, in an axial direction to the paper re-winder.

Having thus described the invention, what is claimed as new and desired to protect by Letters Patent are the following: 
     
       1. .[.In an.]. .Iadd.An .Iaddend.apparatus for convolutely winding .[.of.]. webs of sheet material onto a small diameter core, .Iadd.comprising .Iaddend. means for feeding said core in an axial movement toward the apparatus.[.,.]..Iadd.;.Iaddend.   means for feeding said sheet material toward said core orthogonally to the direction of .Iadd.axial .Iaddend.movement of said core.[.,.]. .Iadd.comprising a first winding cylinder and a second winding cylinder positioned in relation to each other so as to have an interspace present therebetween through which said sheet material is fed; .Iaddend.   a core-receiving seat in said apparatus.[.,.]. .Iadd.positioned adjacent said interspace between said first winding cylinder and said second winding cylinder on a side from which said sheet material is fed; .Iaddend.   means for .Iadd.axially .Iaddend.moving said core .Iadd.from a side of said apparatus .Iaddend.into said core-receiving seat of the apparatus.[.,.]..Iadd.; .Iaddend.   .Iadd.means for pushing a core perpendicularly to said core's axis from said core-receiving seat into the interspace present between said first winding cylinder and said second winding cylinder, said core crossing said interspace; .Iaddend.and   adhesive-applying means disposed along the axial path of the core and arranged to apply a single longitudinal strip of adhesive to said core .Iadd.during axial movement of said core toward said apparatus but .Iaddend.prior to its insertion into said core-receiving seat.   
     
     
       2. The apparatus of claim 1, including a pair of spaced-apart supports for said core in the adhesive-applying area with the adhesive-applying means disposed between the pair of supports. 
     
     
       3. The apparatus of claim 2 wherein one of said pair of supports is a continuous moving belt. 
     
     
       4. The apparatus of claim 3 including a pressure-applying belt arranged in the adhesive-applying section in opposition to the said continuously-moving belt. 
     
     
       5. The apparatus of claim 1 wherein the adhesive-applying means includes a rotating disc and an adhesive container, wherein said rotating disc is arranged to enter the adhesive container and remove adhesive therefrom and pass it in a grazing manner to the core passing through the adhesive-applying zone. 
     
     
       6. The apparatus of claim 5 wherein the peripheral speed of the rotating disc is less than the speed of the core moving through the adhesive-applying zone.