Expansion process for conformation of two parts metal packs, and expansion process equipment for conformation of two parts metal packs

Abstract

The present invention relates to the manufacture of two-piece cans, comprising body and cover, with the most varied shapes of bodies, enabling expansion by means of various processes through the specific tooling, that expands the format desired to be obtained. The body of the can ( 1 ) is transported ( 2 ) for equipment ( 3 ) and, via a transport system with endless screw ( 4 ), which rotates synchronously, by means of gears ( 5 ), with the star input ( 6 ) via cardan shaft ( 14 ) and angled gearbox ( 15 ). By means of gears ( 8 ), the can body ( 1 ) is transferred to the expansion station ( 7 ), input by the star ( 6 ), where the expansion takes place the can body in two parts ( 1 ). Using this same type of synchronism, by means of gears ( 10 and 11 ), the can body is transferred expanded, the station ( 7 ) for a conveyor belt exit ( 13 ) by means of a star outlet ( 9 ).

1 - 13 . (canceled) 
     
     
         14 . An expansion process for conformation of two pieces metal cans, comprising the steps of:
 producing the two-piece cans, the two piece cans including a body and a cover;   expanding the two piece cans by placing the body through an expansion mandrel to created an expanded can;   each body expands until reaching a predetermined form.   
     
     
         15 . The process according to  claim 14 , wherein the body expands to at least one geometric form increasing a volumetric capacity of the two piece can. 
     
     
         16 . The process according to  claim 14 , wherein the body is made of sheets of steel or aluminum. 
     
     
         17 . The process according to  claim 14 , wherein the expanded can includes at least one of print marks, signs, or sign language. 
     
     
         18 . The process according to  claim 14 , wherein the expanding step is being performed in an independent station, the expanding step is perform prior to a refile the two piece can or after formation of a neck and a flange of the two piece can. 
     
     
         19 . The process according to  claim 14 , wherein the expanding step includes six stages. 
     
     
         20 . An expansion equipment for conformation of two pieces metal cans comprising:
 an expansion device including an auger system including an endless screw that rotates synchronously with an expansion station by using a gear device, an inlet start having a cardan shaft, and an angled gearbox;   the two pieces metal can including a body and a cover, the body is transported through the expansion device to expand to a predetermined form.   
     
     
         21 . The equipment according to  claim 20 , wherein the body is transferred from the auger system to the inlet start through the synchronized system where the bodies are lined and being accepted by the synchronized system one by one. 
     
     
         22 . The equipment according to  claim 21 , wherein by using the gear devices, the body is transferred to the expansion device from the start inlet, the inlet start and the expansion device rotate around separate axis, allowing the admission of the bodies in a continuous manner and one by one. 
     
     
         23 . The equipment according to  claim 22 , wherein by using the angled gearbox the expanded can is transferred from the expansion device through an output conveyor, through an outlet start which revolves around its own axis, but in opposite direction to the rotation of the expansion device, which allows the removal of the expanded can in a continuous, individual, continuing the process. 
     
     
         24 . The equipment according to  claim 21 , wherein the synchronized system includes wheels on the bottom or side of each of the corresponding axes and gears, which are driven by an electric motor. 
     
     
         25 . The equipment according to  claim 22 , wherein the system is arranged vertically. 
     
     
         26 . The equipment according to  claim 22 , wherein the system is arranged horizontally.