US2441541A - Wire cutting machine - Google Patents

Description

May 1 1', 1,948 J..F. HxDzlcK 2,441,541

WIRE CUTTING MACHINE Filed Sept. 22, 1945 6 Sheets-Sheet l JDSEFH F- HIDZIEK May 11, 1948. .1. F. HlDzlcK 2,441,541

WIRE CUTTING MACHINE Filed Sept. 22, 1945 6 Sheets-Sheet?,

INVENTOR JLISEPH F. HIDZIEK ATTORNEY -May ll, 1948.

J. F.,HxDz|cK WIRE CUTTING MACHINE Filed Sept. 22, 1943 6 Sheets-Sheet '.5

A T TOR/VEY May 11, 1948. J. F. HlDzlcK WIRE CUTTING MACHINE Filed sept. 22, 1945 6 Sheets-Sheet ,4

nINVENTOR .JnsEPl-l F. HmzlcK May 1l, 1948. `.1. F. HlDzlcK WIRE CUTTING MACHINE Filed Sept. 22, 1943 6 Sheets-Sheet 5 @w w am MH v. EEDWM WH ,R f@ Sm i A May l1, 1948. J. F. HlDzlcK 2,441,541

WIRE CUTTING MACHINE Filed sept. 22, 1945 e sheets-sheet e JUE EPH F. HIDZIEK 71 f u @MQ-SM Patented May 11.414948 UNITED STATE s y PATENT oFFlcr.

WIRE CUTTING MAcHmE Joseph F. Hidzck, San Francisco, Calif. Application September 22, 19473, Serial No. 503,589

4 Claims. (Cl. 1441-144) and iin which all the operative parts are assem-A bled into one compact unit.

A further object of the invention is to arrange the feeding device of the Wire in such a manner that it does not interfere with the Wire cutter on its return from the cutting operation.

A further object of the invention is to combine into a compact unit with the wire advancing and cutting device, a means for straightening the wire from a spool before it is advanced and cut.

A further object of the invention is to provide means whereby the wire may be conveniently fed from a spool Without any ldanger of twisting the individual turns of the spool.

A further object of the invention is to provide aV convenient means, whereby the device may be readily changed for producing lengths of different sizes.

Furtherr objects and advantages of my device will appear as the speciiication proceeds.

The preferred form of my invention is illustrated in the accompanying drawings in which:

Figure 1 is an end elevation of the wire dispensing device.

Figure 2 is a sectional elevation of the wire dispensing device.

. Figure 3 is a top plan elevational view of the machine, partly in section.

Figure 4 is a side elevation of the machine.

Figure 5 is a side elevation taken from the opposite side to that of Figure 3.

Figure 6 shows a rear end view of my machine. Figure 7 is an enlarged fragmentary sectional v detail view showing the cutting device from the rear as seen from line 1-'I of Figure 4.

Figure 8 is a schematic end View of the straightening device,

Figure 9 is an enlarged sectional view of a bearing taken along lines 9-9 of Figure 6.

Figure l0 is an enlarged fragmentary sectional view taken at right angles to that of Figure '7.

Figure 11 is a detailed side elevational view Figure 13 is a plan elevational view of the wire cutter.

LFigure 14 is a side elevational view of the Wire cutter.

Figure 15 is a side elevational view of a wire` receiving device.

Figure 16 is an end elevational view of the wire receiving device.

While I have shown only the preferred form of the invention I wish to have it understood that various changes or modications may be made Within the scope of the claimsV attached hereto without departing from the spirit of the invention.

In its preferred form my device comprises three units, namely; the wire dispensing device illustrated in Figures 1 and 2, the wire straightening advancing and cutting unit illustrated par ticularly well in Figures 3 to 14 and the wire receiving device illustrated in Figures 15 and 16.

The wire dispensing device comprises a hollow cylindrical core I terminating atthe top in a beaded edge Ia and extending at the bottom into cylindrical socket 2 which is permanently attached tothe supporting base 3. Frame standards 4 project upwardly from base 3 in spaced relation about core I and have a plurality of dogs.5 pivoted thereto in such a manner that the dogs lie against the core in an upwardly slanting position. An annular recess 6 is formed in the base. about the core and dimensioned to co-act with the dimension of a spool 'I of wire W so as to allow it to lay in the recess and permit the dogs 5 'to substantially maintain the individual turns of the spool 'I in an operative rela.- tion and prevent disorganization of the individual turns of the spool as the-wire is drawn from the spool.

Standards 4 are provided with a cross member 8 above the core I to which is attached a bracket 9 which supports a grooved pulley I0. The bracket 9 is shaped to conform in part with the periphery of the pulley I0 thus preventing the wire from leaving the pulley except in the proper direction; a depending tube T guiding the wire onto the pulley. A second pulley II is mounted in the frame structure substantially at the height of the cutting device to be described hereinafter, and is provided with a wire guide IZarranged so that the wire W is fed horizontally from said pulley.

The main machine of this invention comprises three main features, namely, a wire straightening device, a wire advancing device and a wire cutting device. These devices are arranged in the order named and are mounted in a common frame which includes upstanding side members I3 and I4 and front and rear end members I5 and I6.

The wire straightening device comprises a plu- 4 pulleys turn in opposite directions with their adjacent peripheral portions turning away from the front end of the machine and the wire straightening device.

After the wire W leaves the feed pulleys, it passes thru an opening in a transverse member n hlill (Figure 3) mounted between frame members porting plate I1 having a pair of grooved pulleys I8 arranged along one edge thereof, and .a third pulley I9 opposed to pulleys I8 in a position int'ermediate the same as plainly shown 'in Fgure."

The three pulleys of the three units are arranged so that a wire passing between and engaged-by all the pulleys will be horizontal.

The intermediate pulley Iil'is mounted for .lateral adjustment relative to the other pulleys `by the following arrangement, vshown particularly `in Figure 11.

The spindle 2t of the pulley 'projects thru a lateral slot 2| in the plate I1 and is securedin a bar 22 under plate I1 and which isslidable on a lug 23 xed on and dependingfrom platelLand itself having a depending boss/2id'. The bar at one endy has a depending flange 25 opposed toboss 24. yA pin 26 isthreaded in the boss and slidably projects thru the flange 25; a compression spring 21 :being about the pin between the boss 'and flange. A handle 28 is pivoted on the pinbeyond the flange, and has a head arranged -so that turning' of the handle to an alined A'position with thepimmoves the`bar'22and the pulley I9 toward the other'pulleys I8. By turning the handle in a direction to rotate thepin, lthe Ydistancelbetween pulleys I9 and I8 maybe accurately adjustedv as maybe necessary. The plateA I1 Vmaybe .a single element for thethree devices, twisted where `necessary -to the proper angles as shown in IFigure'.

The wire advancing device,-by which the wire W is pulled thru the straighteningvunit and then fed to the cutting-device, comprises Ya 4pair-of grooved pulleys 29 of equal-diameter, arranged 4one over the other and having contaoting'grooved peripheries adapted toV receive and grip the wire therebetween. :straightening deviceV beingguided to the pulleys The wire after leaving the wire The f'lower pulley is `mounted on transverse :shaft A3l journaledin frame'membersl and I4, and the upper pulley on -a transverse shaft F32. This shaft is mounted for vertical adjustme'ntfto allow for wires of different diameters V-bein'g gripped between the pulleys,and also permit upward-movement of the topmost pulley, so -asto disengage it from the lower pulley, and thereby interrupt feeding movement ofthe wire.

'This-shaft mountingisshownfin Figures 9 and 10, and'cornprises, for each end of theshaft, a splitvbushing 33 about the shaft, whichis seated in a vertically elongated bore'el in a suppor-ting bracket-35 onthe corresponding sidemember-of the-frame. The bushing is engaged on -toplb'yl-a block 36 having a depending lug 31 countersunk in the bushing and preventing rotation of the same. The block slides in a Vvertical passage 38 -in the brachen-said passage being closed-by a lplug 39. vA compression'spring it is sealed in -the`- passage between the plug andai block, and lubricant may-'be fedto the shaft thru passages llil drilled thrujthe plug and block.

The'pulleys 29 .are driven from a motor1'42, preferably belowfthe vwire straightening device as shown in Figures 3 and 5, by a train of gears y413 as shown fin. Figure l and arranged-so thatthe I3 and I4 for free rocking motion, after which thexzvirepasses thru a close fitting opening in the Vend member I6, and which forms what may `-beconsidered thexed cutting edge of the cutting device now Vto be described.

This cutting device, which functions to intermittently-'cut the wire at opening 45, is particularly shown in Figs. 6 and '7 and comprises a -transverse lever 4'6 pivoted` intermediate its end on'apin 41 Vvmour'lt'ed'in vframe member It and a bracket '48; this pin'beingitoyone side of" opening 45 and on a higher level. A cutting dog 49 is pvoted on theframeiside of the lever between pin 41 and opening 45, and is formed on its lowerA end withidiverging legs'50, forming a'V notch-5I the edges foffwhich are Vsharpened inA reversed relation so that the dog Ymay 'beV reversed on the lever; 'the edge in use--at any time` being the one'nearest member I6 land .opening 45.

A horizontally .disposed-.spring pressed plunger 52'mounted onthelever engages-the dog on the side furthestffrom thewire, andnormally maintains the vdog angled I in v thev .direction of the Wire andlso. thatvthe :leg is acrossfthek vertical'plane of th'ewire.

' The lever.- is Vactuated in a wirev cutting direction, or so that the dog descends past the wire from a position aboveithesamejby a heavy adjustable vertical .compression Ispring- 53 suported at its lowerfend. from` bracket 4&8., 'as-.shown in Figure 6 and at its upper .end bearing 4against a plunger head; 53'," which latter; is engagedfwith the, underside:` ofi.the lever' adjacent. its Iend. The." spring is intermittently 'loaded and tthe -`other "portion of the lever raised by a revolving cam 54 (seeFig-v ure :5) driven as Vhereinafter. set forth andengaging adepending armilon the corresponding end. of the; lever. Whenthezl'ever 1 is rthus raised, the wire; which projects:frornaopening'fl, deects theadjacent-legof the dog against theresistance of the plunger 53' so that said leg"moves"above the `"wi-re, .the yplunger spring 53 "then .returning the dog to its original position` orrwiththefcutting edge of said'l leg directly'aboveethe wire. The cam then moves from undersarnrjiand .the lever suddenly drops,. byathe .action ofy sprin'gi'soV that the dogcuts-thru th-ewwire. "The-shock of droppingvis cushioned by: 'a spring mounted. bumper B.

V'-'Il-ie-camf542is mounted inconnec-tion with a gear-T56v engaging a pinionL-S'l mounted forladjustment alongan arcuate isi-otitis concentric .with the axis `of fgearwli. --Pinion 5.1 Imeshes :with a gear 159 removably 'mounte'din driving'irelation on one of the shafts B of the gear train'. "The slot-58 enablesv the-'pinion toV assume different positions vrelative to shaft 6d lwhile remaining inmesh withf'gear 556.,.sothat gears of "different sizes, f as indicated Lin" Figure. 5, maybe mounted on shaft 60 and thus givediierent speeds to gear '56. 'Byesofdoingfthe aetuatingtime of-thecam and lever-relative tofthe wirefeeding `devicemay -be altered so thatzwirelen'gthsof different dimensionsmay beout.

' yiItfis'desirable'that `the feeding .of the wire be discontinued while." the lever is being lowered' and .until said lever has* assumed its clear "position ment with the wire during this period. This device comprises a pair of transversely spaced levers 6| pivoted as at 62 slightly back of and under shaft 32 between the shaft bearings and rockably supporting shaft-bearing cradles 63 engaging shaft 32 from below. The levers at their rear ends are `rigidly connected by a cross bar 64. An adjustable screw 65 is mounted on a lug 66 projecting radially forward from a transverse shaft 61 supported in brackets 68 mounted on the frame of the machine. An arm 69 depends from the shaft 61 between gear 56 and the frame and rearwardly of its shaft as shown in Figure 12. This arm is adjustable as to length, being .formed of two overlapping sections connected by clamping bolts 10. A cam lug 1I is mounted on gear 56, eccentric to the axis thereof, in position to engage the lower end of the lever "at about the time cam 54 (xed with gear 56) engages arm 55. As the lever is swung back by the rotating lug, moving up, the screw 65 is lowered, depressing the bar 64 and the adjacent end of levers 6|. This raises cradles 63 and shaft 32, raising the upper pulley 29 from driving engagement with the wire, while still maintaining the gears of these pulleys in mesh. At the proper time in the rotation of the gear 56 and the operation of the cam 54, the lutr 'H clears the lever and drops into a recess 12 formed therein, which immediately causes the pulley shaft to resume its lowered position and again advance the wire.

The wire as it projects from the machine and is advanced by the feeding thereof passes into the upper guard 13 of a wire receiving trough 'M (see Figures 15 and 16),r which is supported on standards 14A. This unit is of course mounted in alinement with the machine in proper position to receive the wire.

From the above description it will be seen that if a wire is initially withdrawn from the spool and threaded thru the straightening device to and engaged with pulleys 29, the machine if then started will automatically straighten, advance and then cut the wire into pieces of predetermined and equal lengths and such pieces will be deposited in the receiving trough 14 ready for tying in bundles or otherwise packaged for shipment or use. The machine is supported by a heavy central standard 15.

I claim:

1. A wire cutting machine of the -character described having lin combination a frame provided with an opening therein, a pair of complemental wire-feeding pulleys for feeding wire through said opening, shafts fior iotatively supporting said pulleys, one of said shafts being supported so as to be radially adjustable with respect to the other shaft, a supporting bracket carried by said frame, a lifting member pivotally supported by said bracket and having a portion engaging said adjustable shaft, means carried by said bracket for limiting movement of said lifting member, a rotatively mounted cam member, means operated by said cam member for intermittently actuating said shearing member, and other means actuated by said cam for operating said lifting member independently of but in timed relation with respect to movements of the shearing member.

2. A wire cutting machine of the character described having in combination a frame provided with an opening therein, a pair ofcomplemental wire-feeding pulleys for feeding wire through said opening, shafts for rotatively supporting said pulleys, one of said shafts being supported so as to be radially adjustable with respect to the other shaft, a supporting bracket supported by said frame, a lifting member p-ivotally supported at one end in said bracket, and having means at its other end to engage said adjustable shaft, an adjustable stop mounted in said brackets and positioned to limit upward movement of said lifting member. a rotatively mounted cam member, means operated by said cam member for intermittently actuating said shearing member, and other means actuated by said cam for operating said lifting member independently of but in timed relation with respect to movements of the shearing member.

3. A wire cutting machine of the character described having in combination a frame provided with an opening therein, a pair of coanplemental wire-feeding pulleys for feeding wire through said opening, shafts for rotatively supporting said pulleys, one of said shafts being supported so as to be radially adjustable with respect to the other shaft, a supporting bracket carried by said frame, a lifting member pivotally mounted in said 'bracket and having a portion engaging said adjustable shaft, an actuating arm for said lifting member, a rotatively mounted cam member, means operated by said cam member for actuating said shearing member, and means carried by said cam member for moving said actuating arm in timed relation with respect to' the movements of said shearing member.

4. A wire cutting machine of the character de scribed having in combination a frame provided with an opening therein, a pair of complemental wire-feeding pulleys for feeding wire through said opening, shafts for rotatively supporting said pulleys, one of said shafts being supported so as to be radially adjustable with respect to the other shaft, a bracket supported by said frame, a lifting member pivotally mounted in said bracket and having a pair of laterally disposed arms, a cradle movably supported by said arms and engaging said adjustable shaft, an actuating arm connected with said lifting member so as to be movable therewith, a rotatively mounted cam member, means operated by said cam member for actuating sai-d shearing member, and means carried by said cam member for moving said actuating arm in timed relation with respect to the movements of said shearing member.

JOSEPH F. HIDZICK.

REFERENCES CITED The followingy references are of record in the file of this patent:

UNITED sTATEs PATENTS Number Name Date 729,864 Hofer June 2, 1903 834,050 Ferris Oct. 23, 1906 1,030,930 Shuster July 2, 1912 1,288,402 Gale, Sr Dec. 17, 1918 1,637,824 Hidzick Aug, 2, 1927 1,682,016 M-cChesney Aug. 23, 1928 1,706,729 Gauthier Mar. 26, 1929 f 1,711,160 Swangren Apr. 30, 1929 1,914,975 Nigro June 20, 1933 2,092,840 Greene Sept. 14, 1937 2,179,574 Cullin Nov. 14, 1939 2,310,914 Gaines, 3d, et al Feb. 9, 1943

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