US2341474A - Wire drawing and coiling machine - Google Patents

Description

Feb. 8, 1944.

c. E. ORR WIRE DRAWING AND COILING MACHINE Filed April 14, 1942 3 Sheets-Sheet l m o m w M M wa 0% Feb. 8, 1944. c, E, ORR 2,341,474

WIRE DRAWING AND COILING MACHINE Filed April 14, 1 942 3 Sheets-Sheet 2 INVENTOR. Car'ra/l E Orr QOAL AAM Feb. 8, 1944. c. E. ORR 2,341,474

WIRE DRAWING AND COILING MACHINE Filed April 14, 1942 s Shets-Sheet 5' f'ol/ E- Orr drawing andcoiling machines,

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UNITED STATES PAT m" OFFICE 2,3415. WIRE DRAWING AND COILINQ MACHINE 1 Carroll E. Orr, Orange, N. 1.; assignor to Syncro Machine Company, Rahwa tion 01 New Jersey N- 'J-, a corpora- Application April 14, 1942, Serial No. 438,877 3 Claims. (or. 205-16) This invention relates to improvements in wire but as it will appear from the following description, the subject matter of this invention is not specifically lime it'ed to use insuch a combination.

The general object of thislnvention is to provide as part of a wire drawing and coiling or spooling machine, automatically operating mechwire from the supply reel anism for disconnecting the coiler or spooler i'rom'its power drive and'braking it quicklyto -a stop when the wire going to, the wire drawing machine-from its supply source becomes tangled and locked, This combination is so arranged and timed that the coileror spooler block will be brought to a stop before the supply wire is Further and more specific objects I of this in vention 'and the details or accomplishing a in one form of mechanism will be set forth hereinafter in full detail in .connectionwith' theattached drawings. r This invention resides substantially in the combination, construction, arrangement and'relative location ofiparta'as will be described in de- In theaccompanyin'g drawings, I Figure 11s a side elevational view oi a wire drawing'and coiling machine showing the subject. matter with this invention applied thereto; Figure 2 is atop planview oi the same mech Figure 3 is afright hand end elevational view thereof; Figure i is an enlarged detailed view, partly in central cross section, of the mechanism for holding the clutch. and brake operating member, in operatingiposition; I

Figure 5,,is an enlarged side eievational View of one of the control switches? Figure 6 is a horizontal cross sectional View through the right hand Figure 7 is an enlarged view oi the clutch and brake mechanism. One of the important problems in the handling processing it, as ior examplcin drawing it and where the wire is taken from a supply coilor spool, it frequently happens that the wire becomes tangled or kinked or locked between the point of supply and the wire drawing machine. ,It isjcommon practice of mechanism controlled by the wire for'insuring a suficient supply of wire after a kink or locking occurs to iced the after locking or kinking drawing machine, during the period it is being automatically brought cause breakage ofthe to a stop, so as not to wire, as the result of-its locking due to the tangleor kink therein. In one iormiof practice, an

extremely long arm is pivotallysupported in the path of movement of the to the machine, having a guidepulley thereon over which the wire passes, and which acts to iorm a long bight in the wire. This bight insures an adequate supply of wire,

chine durin'gstopping. In such an arrangement the'iormation of thekink or tangle or the occurrence of locking will stop the supply of wire from the supply'reel, thereby pulling the long arm downwardly. The initial movement of this arm operates control devices a stop, and while it is stoppingthe arm continues to bring the machine to to-desc'end under the pull oiithe'wirej so as to supplyirom the longbight enough wire so-that before the machine comes it'lwill not be broken to a stop. There are other forms of mechanisms for accomplis'hinga similar purpose, as for example a pulley system which forms loops in the wire which decrease in size during the stopping period to supply suiilcient wire to prevent break-- age. In many situations both of these arrangements have disadvantages.

The object of this invention is to provide a substitute mechanism for combinations of this type,

likewise having the iunction oi supplying sumcient wire during stopping or the machine with out breakage. The general principle of this inventionis to employs.

ously described, but one which maybe much 1 shorter, winch arm is pulled downwardly when "the wire tangles and locks and operates a switch upon initial movement of thearm, which controls end of, the machine showing the clutch and brake structure: and ,p

cross-sectional broken 1 that the wire drawing machine processing machine, as for example the wire 55 much shorter, bccause'less wire is a device for disconnecting the coiler or spooler block irom its power. drive, and, immediately, applying a brake thereto to quickly bring it to a stop. A result is that the. bufferarm may be required due to the fact that the block comes to a stop so quickly. As soon as the coiling block comes to a stop the tension which it exerts on the wire be! tween itand the delivery end of thedrawing motion of course. drops 01 to zero with the result I even though it continues torun wllinot demand orpdll any more wire from the source in viewofthe fact that slippage occurs between the wire and the drawing drums.

It. is because of this inherent function of the wire drawing machine that it is possible to disconnect the coil block from its drive occurs, to feed the mabufi'er arm like that previswitch I3 is shown in and brake it so quickly to a stop because of its relatively lighter mass that it is possible to prevent the breakage of wire due to looking or kinking with a much smaller bight in the wire than is the case with rior art arrangements. If desired, and as disclosed, this same or an additional switch may be employed to de-energize the power drive of the wire drawing machine so that it too will come to a stop.

A particular advantage of the novel combination disclosed is that by braking th'e'block to a stop a much smaller braking arrangement may be used than would berequired to brake the whole machine to a stop. Furthermore, when braking the whole machine to a stop the braking action is detrimental to the drive motor and to'the ma-' chine itself.

The manner of operation of a wire drawing machine is such that even though it does not come to a stop in synchronism with the coiler block no harm to the drawing machine or to the wire in it will result because, as is known in the art. the machine only supplies wire as it is depoint in the wire drawing machine by means of a belt or chain l6 which extends to a pulley or sprocket I! mounted on the horizontal shaft ll journaled in the right hand end of the machine housing.

.Referring to Figure 7, the structure mounted on the shaft l8 comprises the clutch and brake manded by the coiler block. It is apparent,

therefore, that it is not'necessary tobrake the driving motor of the wire jdrawingmachine to a stop in synchronism with the block or even to stop the motor if the complication of automatic control is undesirable for some reason. Before describing the-embodiment herein dis-v closed it may be noted, .as will be appreciated by those skilled in the art. that the principles of this;

invention may be applied to other wire, processing .machinesr The description herein as applied to a wire dralwing machine, is not, therefore, supas shown in detail. The sprocket I1 is integral with the rotatable housing of a disc clutch within which housing are the clutch discs 35. The'housing 30 has a series of grooves 30' into which radial lugs on the peripheries of the discs project. Thus discs 35 can slide axially but they rotate with the housing 30 on shaft l8. In-

' terleavedv with theclutch discs 35 are the cooperating plied in a limiting, but rather in an illustrative sense;

, Referring to the drawings there .is illustrated r in Figures 1, 2 and 3,' a combined wire drawing and coiling machine as indicated by the reference numeral l. The wire drawing portion of the machine is generally indicatedby the reference numeral 2 and thecoiler block is shown at 3.

The wire w is supplied from any suitable supply source such as a coil, reel or spool, to a pair of guide wheels 4 from which it passes to and around theguide pulley 5." The pulley 5 is' rotatably mounted on the buffer, arm 6 which is secured to. a shaft 1 iournaled on the side of the machine,

as is clear from Figure 2. The buffer 'arm 6, in accordance with this invention, is much shorter than the one commonly used. The outer end of shaft 1 has a weighted arm I mounted thereon which tends to hold the arm 6 in the raised position shown in Figure 1".

The wire passes from the pulley 5 around a guide pulley 8 which is rotatably mounted on a yoke 9 which is adiustably attached to a suitably shaped bracket I0 on'the side of the machine. Thus the guide pulley 8 may be properly positioned to feed thewire into the entering end of the wire drawing machine. A switch I: of suitable construction is mounted on the side of the machine and is provided with an operating lever l2 positioned. to engage an operating member ll adjustably mounted on the buffer arm 6. The

clutch discs 35' 'which are similarly keyed to a sleeve-32 with which they rotate, but on which they have axial movement. A ring clamp comprises rings 34" and 34 which are a threaded together andare free to rotate and slide on the sleeve32.. The sleeve 32 is secured to the V shaft l8 by means of akey 33. One annular face of the ring 34" is inclined .as indicated at 34.

.it 36 is an annular housing secured to the machine frame and having mounted therein a series of disc clutch elements 31 having peripheral lugs lying in the grooves36'. .These clutch elements are interleaved with-cooperating clutch disc elements 38 which are keyed to the sleeve 32 but which can also slide on the sleeve. A ring clamp comprising the connected rings 38" and 38 is freely slidable androtatable on sleeve 32. A ring 38" is provided with, anannular inclined face 38 Between the annular faces Y34' and 38. is a sleeve ll integral with the sleeve 32. The clutch operating ring 20 surrounds this sleeve and has an outer peripheral groove inwhich the fingers of the oscilla'table yoke 21' ride. It is to be noted that there is no particular novelty in the disc clutch and disc brake per se.

Referring back to Figure 6 it will be seen that the yoke 21' is mounted on a shaft 21 which extends out of the housing and has secured on its end a weighted lever or operating arm 28. Journ aled in the housing parallel to shaft I8 is another shaft 23- and these two shafts are connected by the gears 2| and 22. 'Shaft23 is provided with a bevel pinion 24 meshing with a bevel gear 25 which is mounted on a vertical shaft 28 which extends above the machine and to which the block 3issecureda The lever 20 rides in a guideway formed by the latch housing thereon, as clearly shown in Figure 4. The hooked greater detail in Figure 5. d It. consists of an osclllatable contact blade 85 within the switeh housing mounted on a shaft to which the operating arm I2 is secured. Mountedwithin the housing are a pair of contacts and ll positioned to be engaged by the contact when the arm I: drops in a counterclockwise direction. When the buffer arm is in raised position as shown in Figure 1, switch l3 will be open.

end of the angle lever lflli'lspositioned so as to normally engage the lever 28 andthereby hold it in raised position. The lever I00 is pivotally supported at ,IIIU'Q, A pin 'lll51on'leve r l llll engages a slot inthe'yoke ")3" which is connected by the link M3 to the plunger 1020f a solenoid". A spring I04 surrounds the link I01 between the yoke Hi3"- and a fixed bracket to hold these connected parts in the position shown in Figure 4.

29 and the guide rods '29 mounted I The winding 83 of the solenoid is connected to the circuit wire 84 and to one ofthe terminals of switch 83". Wire 84, as is clear from Figure 1,

l3. The other terminal ofswitch I3 is connected to the operating windings 83 of a relay, of which switch 83" is a part. Winding it? is also connected to wire 84. Switch 83' is a part of the relay which controls a circuit for the main driving motor I5.

Returning to Figure 7, it will be seen that the sleeve H has cut out portions in which are pivotally mounted the clamping cams 40 and 42 respectively. Cam 40 is shown in clamping position, which position it takes when lever 28 is in the position shown in the various figures, and at which time solenoid winding 83 is de-energized. At this time yoke 21' is in the position shown in Figure '7 and has forced the clamping cam 40 against the inclined face 34' of the ring 34" so as to move it to the right and cause the two sets of discs of the clutch to firmly engage, and therefore lock the driving sprocket I! to the shaft I8. When the yoke 21' is shifted to its other position the ring 20 reelases the clamping cam 40 and engages the clamping cam 52, which acting through the camming face 38' causes the clutch elements 31 and 39 to engage and provide a braking action on the shaft I8, thus quickly bringing it to a stop. At the time the brake comes into operation the clutch is released so that shaft I8 is free of its power source.

While the above description may be adequate for a full understanding of the machine, a little additional description may be desirable. When the machine is operating, weighted lever 28 is in the position shown and is held there by the end of lever I00. The buffer arm 6 is in raised position and switch I3 is open. The clutch is engaged so that when the main motor is energized, switch 83 being closed, the wire drawing machine will operate and the block 3 will revolve. Power for this purpose is supplied from the wire drawing machine through the connection I6 to the sprocket I1 which isnow clutched to the shaft I8. Thus shaft 23 is driven through the gears 2| and 22, and shaft 26 in turn is driven through the gears 24 and 25. Thus the block 3 is revolving and coiling the wire upon it. Should the wire tangle or kink, or for any reason stop feeding, the tension therein will increase and arm 6 will be swung downwardly. As soon as it begins to move, switch I3 closes, energizing winding 83* so that switch 03' opens and switch 83" closes. The opening of the former de-energlzes the control circuit. for motor I and the closing of the latter energizes solenoid 83. Lever I00 swings against the resistance of spring I04 in a counterclockwise direction through the action of the plunger I02. The end of the lever I00 disengages the weighted arm 28, which is free to move in a clockwise direction (Figure 3). This causes shaft 21 to revolve, carrying with it yoke 21' so that the operating member 20 disengages the clutch and applies the brake in the manner previously described. Hence the block 3 will quickly come to rest and before the wire W has straightened out the bight formed by the buffer arm 6, so that the wire will not break. The main or drawing portion of the machine coasts to a stop at the same time.

From the above description it will be apparent to those skilled in the art that many detailed modifications can be made of the invention herein disclosed without departure from the novel subject matter thereof. I prefer, therefore, to be limited by the scope of the claims granted me,

rather than by the illustrative description herein given.

Whatis claimed is:

l. The combination with a motor driven wire drawing machine, of means for supplying wire thereto, a pivotally supported arm positioned to form a bight in the wire between the supply and the machine, means for holding said arm in bight forming position, the tightening of the wire'due to kinking or locking swinging said arm to bight releasing position, a switch positioned to be held open by said arm in bight forming position, a rotatable coiling device positioned to receive wire from said drawing machine, power means for driving said coiling device from said drawing machine including a clutch, a brake for said coiling device only, means for disengaging the clutch and applying the brake, and means connected to said switch for actuating said clutch and brake actuating means, whereby the bight formed by said" arm supplies suflicient wire while said coiling device comes to a stop to prevent breakage of the wire due to kinking thereof.

2. The combination with a power driven wire drawing machine of means for supplying wire thereto, movable means for forming a bight in the wire between the supply and the machine, means for normally holding said bight forming means in bight forming position, the tightening of the wire moving said bight forming means in a direction to gradually decrease the size of the bight, a switch operated by the movement of said bight forming means, a rotatable coiling device positioned to receive wire from said drawing machine, power means for driving said coiling device including a clutch, a brake for said coiling device, means for disengaging said clutch and applying said brake, and means connected to said switch for actuating said clutch and brake actuating means whereby the bight formed by said bight forming means supplies sufilcient wire while said coiling device comes to a'stop upon operation of said switch' to prevent breakage of the wire.

3. The combination with a wire processing'machine and means for supplyingwire thereto, of a movable-support for forming a bight in the wire between the supply and the machine, a rotatable coiling device arranged to receive wire from said machine, a power means, a clutch for connecting said power means to saidcoiling device to cause it to revolve, a brake for said coiling device, and means controlled by said movable means for disengaging the clutch and applying the brake when the tension in the wire increases to cause said movable means to move, the wire in said bight being sufiicient to supply said machine during the stopping of said coiling device.

' cARaoLL E. ORR.

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