Combined necking die
A shrinking die and combined technology, which is applied in the direction of metal processing equipment, forming tools, manufacturing tools, etc., can solve the problem that the surface of the die cannot be replaced separately, scratches, etc.
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[0008] Depend on figure 1 As shown, the combined shrinking die includes a pressure sleeve 1, a mandrel 3, a guide sleeve 4, a positioning plate 5, a lower mold base 6, a die 7, a die sleeve 8, a stripper block 9, a guide block 10 and a spring 11, The lower mold base 6 is fixed on the pressure equipment, and the lower mold base 6 is filled with a mold cover 8, a die 7, a positioning plate 5, a guide block 10, a spring 11, and a material return block 9 to form a material return mechanism. The mandrel 3 and Compression sleeve 1 is fastened, and the inner diameter of guide sleeve 4 is identical with the outer diameter of cylindrical material 2, and the shape and size of die 7 are the same as the reduced diameter shape and size. The ejection mechanism is that the spring 11 is set outside the guide block 10, the ejection block 9 is placed between the guide block 10 and the die 7, the bottom and outside of the positioning plate 5 are close to the lower die base 6, and the top of the ...
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