| 摘要 |
PURPOSE: A screw thread rolling apparatus of round bar is provided, which reduces breakdown ratio, manufacturing process and manufacturing cost by substantially simplifying structure of the apparatus and reduces occupancy area and seeks handling convenience by enabling miniaturization of size of the apparatus. CONSTITUTION: The screw thread rolling apparatus of round bar comprises a screw rolling die(5) rotationally installed at the front surface of main body(1) with a workpiece rotation passageway(6) being formed between the screw rolling die(5) and subsidiary die(3) in the state that the screw rolling die(5) is connected to rotation shaft (M') of driving motor (M) fixed to the rear surface of the main body(1); a workpiece receiving part(7) comprising a pair of front and rear receiving plates(7A,7B) constructed at one side of the screw rolling die(5) and movably installed on supporting table(8) whose inclination angle is controlled so that separation width of the pair of front and rear receiving plates(7A,7B) is controlled through a guiding slot(8') and a fixing bolt(8'), and a supporting rod(7C) supportingly connected to bracket(9) both ends of which are fixed to the rear receiving plate(7B) and a supporting table(8) in the state the supporting rod(7C) is penetrated into the front receiving plate(7A) so that the supporting rod(7C) is supportingly connected to the front and rear receiving plates(7A,7B); a guide part(10) integrally connected to one side end of the workpiece receiving part(7) to supply received non-processed round bars to the screw rolling die(5) in a row; a finished product piling stand(11) fixed to the front of the main body(1) oppositely directed to the workpiece receiving part(7) to temporarily pile and receive round bars (S), and on one side of which a screw thread (S') is formed; and a workpiece injector(12) comprising a pusher(12') installed in the lower side of the guide part(10) and reciprocatingly appeared or disappeared intermittently by a rotating cam(13) to intermittently inject round bars arranged in a row on the guide part(10) one by one to the workpiece rotation passageway(6).
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