Abstract Wire feeding and measuring means for lead making machine comprises capstan which withdraws the wire from a reel or barrel during a major portion of the operating cycle and a set of high speed rolls which operate during only a minor portion of the cycle. Wire is measured and accumulated by the capstan and the measured and accumulated wire is then fed into the machine during the minor portion of the cycle by the high speed rolls. The capstan is controlled by means of a pulse generator which generates a series of pulses in response to the feeding of the wire, the number of pulses generated having a fixed ratio to the length of wire fed. The pulses are transmitted to a counter/controller which controls a printed circuit motor that drives the capstan. The counter can be preset to stop the printed circuit motor after a predetermined length of wire has been fed for a single operating cycle.
In a machine for intermittently feeding wire from a substantially endless source to a lead making machine or the like in which the wire is withdrawn from the source by withdrawing means during a first time period and the wire so withdrawn is fed by high speed rolls during a second time period commencing just prior to the end of the first time period, said machine including means for driving the withdrawing means comprising a motor, pulse generating means effective during operation of the withdrawing means to generate a train of regularly recurring pulses, the number of pulses bearing a direct ratio to the length of wire withdrawn from the source, and means adjustably responsive to a selected plurality of pulses produced by the pulse generating means for discontinuing operation of the withdrawing means.
Claim 2
Dependent Claim
134 words
In a machine for intermittently feeding wire from a substantially endless source to a lead making machine or the like in which the wire is withdrawn from the source by withdrawing means during a first time period and the wire so withdrawn is fed by high speed rolls during a second time period commencing just prior to the end of the first time period, said machine including means for driving the withdrawing means comprising a motor, pulse generating means effective during operation of the withdrawing means to generate a train of regularly recurring pulses, the number of pulses bearing a direct ratio to the length of wire withdrawn from the source, and means adjustably responsive to a selected plurality of pulses produced by the pulse generating means for discontinuing operation of the withdrawing means.
Claim 3
Dependent Claim
15 words
Apparatus as set forth in claim 1 whereIn said wire withdrawing means comprises a capstan.
Claim 4
Dependent Claim
59 words
Apparatus as set forth in claim 1 wherein said pulse generating means comprises roll means and a rotary pulse generator means, said roll means being in engagement with said wire when said wire is withdrawn from said source, said roll means being coupled to said rotary pulse generating means to rotate said generating means during withdrawal of said wire.
Claim 5
Dependent Claim
40 words
Apparatus as set forth in claim 1 wherein said control means comprises counter/controller means, said counter/controller means being settable to stop said wire withdrawing means after counting of selected numbers of pulses to thereby determine the length of wire fed.
Claim 6
Dependent Claim
15 words
Apparatus as set forth in claim 4, including means for cyclically resetting the counter/controller means.