AUTOMATIC HIGH-SPEED COLD HEADING MACHINE

摘要

The present invention provides an automatic highspeed cold heading machine and more particularly a machine for forming heads on wire blanks wherein the operations of a punch, and an ejector mechanism are performed simultaneously, and wherein a punch, a cutting knife and an ejector mechanism are driven simultaneously in continuous harmonic motion for the purpose of achieving stable high speed operation. According to the present invention there is provided an automatic high speed cold heading machine comprising the combination of a main shaft which includes an eccentric portion thereon, punching means, including a ram operably connected to said main shaft so that said ram reciprocates upon rotation of said main shaft, for punching blanks in a die to form a finished product, a second shaft which includes an eccentric portion, said second shaft being operably geared to said main shaft, blank cutting means operably connected to said second shaft so that said blank cutting means reciprocates upon rotation of said second shaft for cutting blanks, means for receiving cut blanks from said blank cutting means, a rotary die head having a plurality of dies respectively positioned in alignment with said ram, said rotary die head being operably connected for rotation to said second shaft, a third shaft operably geared at about one end thereof to said main shaft, a fourth shaft operably geared to the other end of said third shaft, said fourth shaft including an eccentric portion thereof, ejecting means, including a rocker arm pivotably connected to the eccentric portion of said fourth shaft and coacting with rod means on said rotary die head, for ejecting blanks from said die head, and means for rotating said main shaft so that the main shaft imparts a compressive force against the rotary die head while the second shaft simultaneously drives the blank cutting means to cut a blank and feed a blank to the cut blank receiving means at the same time that the fourth shaft simultaneously drives the rocker arm to engage with and apply a force against a rod of said rod means causing said rod to cause a blank disposed in a die to be ejected therefrom, said blank cutting means, said punching means and said ejecting means being driven simultaneously and independently by said second shaft, said main shaft and said fourth shaft respectively in a synchronized harmonious motion without significant pause or dwell.