Patent ID: 6675868
Filing Date: 2004-01-13
Classification: B22C

Abstract:
A core locating pin forming and fitting machine comprising a cylindrical body 10 having an end wall 36 and a bore 20 extending in a diametrical direction and containing a pressure actuated piston 12 and rod 14 having a free end 21, said cylindrical body having a pin ejection opening 29 said rod 14 having a first bore 18 diametrically therethrough at a position adjacent said free end which said first bore 18 adjacent said free end 21, in one position of said rod 14 and via said bore 20 in the cylindrical body, receives pin wire 22 from an external source, said rod 14 having a second bore 34 extending from said free end 21 of said rod 14 and arranged normally thereto, said second bore connecting said first bore 18 with a space 32 between the rod free end 21 and the end wall of the cylindrical body, which space 32 contains a punch device 30 which in operation passes through said second bore 34, to punch an indentation in said pin wire, when said pin wire is loaded into said first bore 18, prior to said pin wire, when in said first bore 18 being cut to form a pin of selected length, said piston 12 and rod 14 being movable relative to said cylindrical body, to a position wherein said first bore 18 is aligned with said pin ejection opening 29 in the cylindrical body, said second bore 34 of said rod 14 being positioned to locate the indentation formed in said pin wire at a selected position along the selected length of the resulting pin whereby, when the pin is inserted into a layer of wax on a core, the indentation will be disposed externally to the layer of wax.