Process for making a conveyor roller and the corresponding conveyor roller

Abstract

A process for making a roller for conveying products along a predetermined path in an industrial installation, where a portion for rotationally driving the roller includes a tubular element and is associated with a rotatable roller support of the same roller in the form of a long tubular body. According to the process, the tubular drive element is connected to the tubular supporting body with glue.

1 . A process for making a roller for conveying products along a predetermined path in an industrial installation, in which means for rotationally driving the roller comprising a tubular element are associated with rotatable roller supporting means, in the form of a long tubular body, wherein the tubular drive element is connected to the tubular supporting body by adhesive.  
   
   
       2 . The process according to  claim 1 , wherein adhesive material is distributed on the inside surface of the tubular drive element.  
   
   
       3 . The process according to  claim 1 , wherein adhesive material is distributed on the outside surface of the tubular supporting body.  
   
   
       4 . The process according to  claim 3 , wherein adhesive material is distributed on the outside surface of the tubular supporting body at an intermediate zone where the tubular drive element is positioned.  
   
   
       5 . The process according to  claim 1 , wherein the tubular drive element is inserted on the tubular supporting body.  
   
   
       6 . The process according to  claim 5 , wherein the tubular drive element is inserted on the tubular supporting body by rotating the tubular drive element and the tubular supporting body relative to one another.  
   
   
       7 . The process according to  claim 6 , wherein the tubular drive element is inserted on the tubular supporting body by rotating the drive element relative to the tubular supporting body.  
   
   
       8 . The process according to  claim 6 , wherein said rotation for insertion of the tubular drive element is performed manually.  
   
   
       9 . The process according to  claim 1 , wherein reciprocal locking means are placed between the tubular drive element and the tubular supporting body.  
   
   
       10 . The process according to  claim 9 , wherein the reciprocal locking means between the tubular drive element and the tubular supporting body consist of a reciprocal interference zone between the inside surface of the tubular drive element and the outside surface of the tubular supporting body.  
   
   
       11 . The process according to  claim 10 , wherein the interference zone on the inside surface of the tubular drive element is at an end section of the inside surface of the tubular drive element.  
   
   
       12 . The process according to  claim 10 , wherein the interference zone on the outside surface of the tubular supporting body is formed by a zone of the outside surface of the tubular supporting body with an increased diameter.  
   
   
       13 . The process according to  claim 1 , wherein the tubular supporting body has a zone having a predetermined diameter suitable for allowing the passage of the inside surface of the tubular drive element.  
   
   
       14 . The process according to  claim 9 , wherein the tubular drive element is inserted on the tubular supporting body until it reaches a zone of the supporting body which locks the tubular element.  
   
   
       15 . The process according to  claim 9 , wherein the locking connection between the tubular drive element and the tubular supporting body is obtained by axially forcing the drive element and the supporting body relative to one another.  
   
   
       16 . The process according to  claim 15 , wherein the locking connection between the tubular drive element and the tubular supporting body is obtained by axially forcing the drive element on the supporting body.  
   
   
       17 . The process according to  claim 1 , wherein the tubular drive element is made of aluminum.  
   
   
       18 . The process according to  claim 1 , wherein the tubular drive element is obtained by drawing.  
   
   
       19 . The process according to  claim 1 , comprising a step of cleaning the inside surface of the tubular drive element.  
   
   
       20 . The process according to  claim 19 , comprising a second step of cleaning the inside surface of the tubular drive element.  
   
   
       21 . The process according to  claim 1 , in which there are operating means for engaging the product to be conveyed, in the form of at least one cylindrical sleeve, wherein the cylindrical sleeve is connected to the tubular supporting body by adhesive.  
   
   
       22 . The process according to  claim 21 , wherein adhesive material is distributed on the inside surface of the cylindrical sleeve.  
   
   
       23 . The process according to  claim 22 , wherein adhesive material is distributed on the outside surface of the tubular supporting body at an end zone where the cylindrical sleeve is positioned.  
   
   
       24 . The process according to  claim 21 , wherein the cylindrical sleeve is inserted on the tubular supporting body.  
   
   
       25 . The process according to  claim 24 , wherein the cylindrical sleeve is inserted on the tubular supporting body by rotating the cylindrical sleeve and the tubular supporting body relative to one another.  
   
   
       26 . The process according to  claim 25 , wherein the cylindrical sleeve is inserted on the tubular supporting body by rotating the cylindrical sleeve relative to the tubular supporting body.  
   
   
       27 . The process according to  claim 25 , wherein said rotation for insertion of the cylindrical sleeve is performed manually.  
   
   
       28 . The process according to  claim 21 , wherein reciprocal locking means are placed between the cylindrical sleeve and the tubular supporting body.  
   
   
       29 . The process according to  claim 28 , wherein the reciprocal locking means between the cylindrical sleeve and the tubular supporting body consist of a reciprocal interference zone between the inside surface of the cylindrical sleeve and the outside surface of the tubular supporting body.  
   
   
       30 . The process according to  claim 29 , wherein the interference zone on the inside surface of the cylindrical sleeve is at an end section of the inside surface of the cylindrical sleeve.  
   
   
       31 . The process according to  claim 29 , wherein the interference zone on the outside surface of the tubular supporting body is formed by a zone of the outside surface of the tubular supporting body with an increased diameter.  
   
   
       32 . The process according to  claim 21 , wherein the tubular supporting body has a zone having a predetermined diameter suitable for allowing the passage of the inside surface of the cylindrical sleeve.  
   
   
       33 . The process according to  claim 28 , wherein the cylindrical sleeve is inserted on the tubular supporting body until it reaches a zone of the supporting body which locks the cylindrical sleeve.  
   
   
       34 . The process according to  claim 28 , wherein the locking connection between the cylindrical sleeve and the tubular supporting body is obtained by axially forcing the cylindrical sleeve and the supporting body relative to one another.  
   
   
       35 . The process according to  claim 34 , wherein the locking connection between the cylindrical sleeve and the tubular supporting body is obtained by axially forcing the cylindrical sleeve on the supporting body.  
   
   
       36 . The process according to  claim 21 , wherein the cylindrical sleeve is made of aluminum.  
   
   
       37 . The process according to  claim 21 , wherein the cylindrical sleeve is obtained by drawing.  
   
   
       38 . The process according to  claim 21 , comprising a step of cleaning the inside surface of the cylindrical sleeve.  
   
   
       39 . The process according to  claim 38 , comprising a second step of cleaning the inside surface of the cylindrical sleeve.  
   
   
       40 . The process according to  claim 1 , comprising a step of cleaning the outside surface of the tubular supporting body.  
   
   
       41 . The process according to  claim 40 , comprising a second step of cleaning the outside surface of the tubular supporting body.  
   
   
       42 . The process according to  claim 19 , wherein said cleaning step is carried out just before the adhesive material is spread on the corresponding surface.  
   
   
       43 . The process according to  claim 21 , wherein a lateral containment flange is connected to the cylindrical sleeve by corresponding connecting means.  
   
   
       44 . The process according to  claim 43 , wherein a lateral containment flange is connected to the cylindrical sleeve after the sleeve has been connected to the tubular supporting body.  
   
   
       45 . The process according to  claim 44 , wherein a lateral containment flange comprises a first and a second part which can be associated with the respective cylindrical sleeve.  
   
   
       46 . The process according to  claim 45 , wherein each part has the shape of a semi-circular portion.  
   
   
       47 . The process according to  claim 45 , wherein each part has a circular inside edge designed to encompass the circular body.  
   
   
       48 . The process according to  claim 45 , wherein each part has respective end edges designed so that in practice they match the corresponding end edge of the other part of the flange.  
   
   
       49 . The process according to  claim 41 , wherein a lateral containment flange is connected to the cylindrical sleeve before gluing the sleeve to the tubular supporting body.  
   
   
       50 . The process according to  claim 21 , wherein the sleeve comprises ready-made holes for connecting a flange.  
   
   
       51 . The process according to  claim 43 , wherein the flange or its parts are made of plastic.  
   
   
       52 . The process according to  claim 1 , wherein the supporting body is made of steel.  
   
   
       53 . A roller comprising means for rotationally driving the roller consisting of a tubular element, and rotatable roller supporting means, in the form of a long tubular body, wherein the tubular drive element is connected to the tubular supporting body by adhesive.  
   
   
       54 . The roller according to  claim 53 , wherein reciprocal locking means are placed between the tubular drive element and the tubular supporting body.  
   
   
       55 . The roller according to  claim 54 , wherein the reciprocal locking means between the tubular drive element and the tubular supporting body consist of a reciprocal interference zone between the inside surface of the tubular drive element and the outside surface of the tubular supporting body.  
   
   
       56 . The roller according to  claim 55 , wherein the interference zone on the inside surface of the tubular drive element is at an end section of the inside surface of the tubular drive element.  
   
   
       57 . The roller according to  claim 53 , wherein the interference zone on the outside surface of the tubular supporting body is formed by a zone of the outside surface of the tubular supporting body with an increased diameter.  
   
   
       58 . The roller according to  claim 53 , wherein the tubular drive element is made of aluminum.  
   
   
       59 . The roller according to  claim 53 , comprising operating means for engaging the product to be conveyed, in the form of at least one cylindrical sleeve, wherein the cylindrical sleeve is connected to the tubular supporting body by adhesive.  
   
   
       60 . The roller according to  claim 59 , wherein reciprocal locking means are placed between the cylindrical sleeve element and the tubular supporting body.  
   
   
       61 . The roller according to  claim 60 , wherein the reciprocal locking means between the cylindrical sleeve and the tubular supporting body consist of a reciprocal interference zone between the inside surface of the cylindrical sleeve and the outside surface of the tubular supporting body.  
   
   
       62 . The roller according to  claim 61 , wherein the interference zone on the inside surface of the cylindrical sleeve is at an end section of the inside surface of the cylindrical sleeve.  
   
   
       63 . The roller according to  claim 61 , wherein the interference zone on the outside surface of the tubular supporting body is formed by a zone of the outside surface of the tubular supporting body with an increased diameter.  
   
   
       64 . The roller according to  claim 59 , wherein the cylindrical sleeve is made of aluminum.  
   
   
       65 . The roller according to  claim 59 , wherein a lateral containment flange comprises a first and a second part which can be associated with the respective cylindrical sleeve.  
   
   
       66 . The roller according to  claim 65 , wherein each part has the shape of a semi-circular portion.  
   
   
       67 . The roller according to  claim 65 , wherein each part has a circular inside edge designed to encompass the circular body.  
   
   
       68 . The roller according to  claim 65 , wherein each part has respective end edges designed so that in practice they match the corresponding end edge of the other part of the flange.  
   
   
       69 . The roller according to  claim 65 , wherein the lateral containment flange is made of plastic.  
   
   
       70 . The roller according to  claim 59 , wherein the roller comprises a sleeve with ready-made holes for connecting screws.  
   
   
       71 . The roller according to  claim 53 , wherein the supporting body is made of steel.