| 摘要 |
The leading end portion of an elongated length of wire is cut off from the remaining length of wire each time the wire dwells after being advanced along a generally horizontal path. The cutting is effected by moving a cutter downwardly into cutting engagement with the wire and by immediately thereafter moving a wiper downwardly into engagement with the leading end portion of wire to push that portion downwardly and, if necessary, to cause shearing of any uncut diameter of the wire. The cutter and the wiper are actuated by a single, double-acting eccentric which serves to positively advance and positively retract both the cutter and the wiper. The cutter is carried by an arm which is actuated directly by the eccentric while the wiper is carried by a pivoted link connected to the arm. The eccentric, the arm and the link coact to cause the wiper to overtake the cutter as the cutter approaches the bottom of its cutting stroke.
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