Deburring Machine for Deburring Metal Work Pieces

Abstract

The subject-matter of the invention is deburring machine for deburring metal work pieces with a continuous circulating abrasive belt ( 7 ), with a contact roller ( 3 ) for pressing the abrasive belt ( 7 ) against the work piece ( 2 ) and with a tensioning roller ( 8 ) for tensioning the abrasive belt ( 7 ), wherein the contact roller ( 3 ) is surrounded by a resilient coating ( 4 ). Creating a deburring machine of the afore-mentioned type with a great resilience range, providing a counter-pressure on the burr sufficient for deburring and that is much simpler to operate is achieved by providing a pressure belt ( 5 ) between the contact roller ( 3 ) and the abrasive belt ( 7, 7 ′), which circulates continuously around the contact roller ( 3 ) and a second roller ( 9 ).

What is claimed is: 
     
         1 . A deburring machine for deburring metal work pieces, comprising:
 a continuous circulating abrasive belt ( 7 ,  7 ′);   a contact roller ( 3 ) for pressing the abrasive belt ( 7 ,  7 ′) against the work piece ( 2 ), wherein the contact roller ( 3 ) is surrounded by a resilient coating ( 4 ,  4   a ′″);   a tensioning roller ( 8 ) for tensioning the abrasive belt ( 7 ,  7 ′);   a pressure belt ( 5 ,  5 ′,  5 ″,  5 ′″) circulating continuously around the contact roller ( 3 ); and   a second roller ( 9 ) provided between the contact roller ( 3 ) and the abrasive belt ( 7 ,  7 ′).   
     
     
         2 . The deburring machine according to  claim 1 , characterized in that the pressure belt ( 5 ,  5 ′) is designed so that it is harder than the resilient coating ( 4 ) of the contact roller ( 3 ). 
     
     
         3 . The deburring machine according to  claim 1 , characterized in that the pressure belt ( 5 ″,  5 ′″) is designed with at least three layers, with an inner stretch-resistant layer ( 12 ″,  12 ′″), with a middle layer ( 4 ″,  4   b ′″) made of a soft resilient coating and with a harder outer layer ( 11 ″,  11 ′″). 
     
     
         4 . The deburring machine according to  claim 3 , characterized in that the middle layer ( 4 ″,  4   b ′″) has a hardness of 5° Shore to 25° Shore. 
     
     
         5 . The deburring machine according to  claim 3 , characterized in that the resilient coating ( 4 ,  4   a ′″) and/or the middle layer ( 4 ″,  4   b ′″) is made of a foam material. 
     
     
         6 . The deburring machine according to  claim 1 , characterized in that the resilient coating ( 4 ) has a hardness of 5° Shore to 25° Shore. 
     
     
         7 . The deburring machine according to  claim 1 , characterized in that the resilient coating ( 4   a ″) has a hardness of 60° Shore to 70° Shore. 
     
     
         8 . The deburring machine according to  claim 1 , characterized in that the pressure belt ( 5 ,  5 ′,  5 ′″) is tensioned in such a manner that the pressure belt ( 5 ,  5 ′,  5 ′″) exerts a contact pressure onto the resilient coating ( 4 ,  4   a ″) during the grinding process. 
     
     
         9 . The deburring machine according to  claim 1 , characterized in that the pressure belt ( 5 ,  5 ′,  5 ′,  5 ′″) is designed so that it has at least exactly the same width as the abrasive belt ( 6 ). 
     
     
         10 . The deburring machine according to  claim 1 , characterized in that the pressure belt ( 5 ,  5 ′,  5 ″,  5 ′″) has a structured surface on its side oriented toward the contact roller ( 3 ). 
     
     
         11 . The deburring machine according to  claim 10 , characterized in that the structured surface has a structure depth of 0.1 mm to 2 mm. 
     
     
         12 . The deburring machine according to one of the  claim 10 , characterized in that the structured surface has elevations and/or recesses. 
     
     
         13 . A deburring machine for deburring metal work pieces, comprising:
 a continuously circulating abrasive belt ( 7 );   a contact roller ( 3 ) for pressing the abrasive belt ( 7 ) against the work piece ( 2 );   a tensioning roller ( 8 ) for tensioning the abrasive belt ( 7 );   a pressure belt ( 5 ″,  5 ′″) circulating continuously around the contact roller ( 3 ), the pressure belt ( 5 ″,  5 ′″) having a resilient coating; and,   a second roller ( 9 ) provided between the contact roller ( 3 ) and the abrasive belt ( 7 ).   
     
     
         14 . The deburring machine according to  claim 13 , characterized in that the pressure belt ( 5 ,  5 ′) is designed so that it is harder than the resilient coating ( 4 ) of the contact roller ( 3 ). 
     
     
         15 . The deburring machine according to  claim 13 , characterized in that the pressure belt ( 5 ″,  5 ′″) is designed with at least three layers, with an inner stretch-resistant layer ( 12 ″,  12 ′″), with a middle layer ( 4 ″,  4   b ′″) made of a soft resilient coating and with a harder outer layer ( 11 ″,  11 ′″). 
     
     
         16 . The deburring machine according to  claim 15 , characterized in that the middle layer ( 4 ″,  41 ′″) has a hardness of 5° Shore to 25° Shore. 
     
     
         17 . The deburring machine according to  claim 15 , characterized in that the resilient coating ( 4 ,  4   a ′″) and/or the middle layer ( 4 ″,  4   b ′″) is made of a foam material. 
     
     
         18 . The deburring machine according to  claim 13 , characterized in that the pressure belt ( 5 ,  5 ′,  5 ′″) is tensioned in such a manner that the pressure belt ( 5 ,  5 ′,  5 ′″) exerts a contact pressure onto the resilient coating ( 4 ,  4   a ″) during the grinding process. 
     
     
         19 . The deburring machine according to  claim 13 , characterized in that the pressure belt ( 5 ,  5 ′,  5 ′,  5 ′″) is designed so that it has at least exactly the same width as the abrasive belt ( 6 ). 
     
     
         20 . The deburring machine according to  claim 13 , characterized in that the pressure belt ( 5 ,  5 ′,  5 ″,  5 ′″) has a structured surface on its side oriented toward the contact roller ( 3 ).