US604769A

US604769A - Wiee drawing machine

Info

Publication number: US604769A
Authority: US
Publication date: 1898-05-31
Anticipated expiration: 1915-05-31

Description

G' 4 Sheets-Sheet 1.

WIRE DRAWING MACHINE. ,769. Patented May 31, 1898.

(NO Model.)

`im ATTORNEY llll |L Imm WITNESSES:

(No Model.) 4 Sheets-Sheet 2.

G. B. LAMB. WIRE DRAWING MACHINE.

No. 604,769. Patented May 3l, 1898.

lailsiihhlii lNVENTOH Ihr.

AIIGIINEY` (No Model.) 4 Sheets-Sheet 3.

' G. B. LAMB.

WIRE DRAWING MACHINE.

N0.'604,769. Patented May 31,l898'.

(No Model.) 4 Sheets- Sheet 4.

G. B. LAMB.

WIRE DRAWING MACHINE. No. 604,769. Patented May 31, 1898.

721) ATTORNIEY Unirse Simfree Barnum FFICE.

GEORGE B. LAMB, OF VATERBURY, CONNECTICUT, ASSIGNOR TO THE IVATERBURY MACHINE COMPANY, OF SAME PLACE.

WBREWDRAWlNG MACl-HNE.

SPECIFICATION forming part of Letters Patent No. 604,769, dated May 31, 1898.

Application filed June 16, 1897. Serial No. 640,964. (No model.)

To all whom t may concern:

Beit known that I, GEORGE B. LAMB, of lfVaterbury, in the county of New IIaven and State of Connecticut, have invented a new and useful Improvement in Tire-Drawing Machines, of which the following -is a speciication.

The present invention relates to machines for drawing wire, and especially has for its object the provision of means for threading the wire through the several dies and gradually moving of such dies from an initial position wherein the wire is wound abouta roll and consecutively threaded through the several dies while the die-box is moved up to its normal position, wherein the respective dies are located opposite their appropriate rolls. The subject of the present application is an improvement upon the devices shown and described in my application filed April 14, 1896, and serially numbered 587 ,462.

In the several views of the drawings I have shown a construction embodying the features of the present invention, in whichvFigure 1 is a plan view of the machine, certain parts being in horizontal section. Fig. 2 is an end elevation, the tank being shown in vertical section. Fig. 3 is an enlarged detail View, in side elevation, of the sliding die-box. Fig. 4 is an enlarged detail sectional view along line 4 4 of Fig. 1. Fig. 5 is an enlarged sectional view along line 55 of Fig. 1. Fig.

Y 6 is an enlarged detail sectional view of the drawing-in roll, taken on the line 6 6 of Fig. 7, looking in the direction of the arrows. Fig. 7 is a detail sectional view taken along line 7 7 of Fig G, looking in the direction of the arrows. Fig. 8 is an enlarged detailplan View,

partly in section, of the wire-gripping mechanism of the drawing-in roll. Fig. 9 is a side elevation View, and Fig. 10 is an enlarged detail view in section, of the gearing for driving the parts at varying rates of speed.

Like letters of reference refer to like parts in the several views of the drawings.

Referring to the drawings in detail, A represents the base ofthe machine, which is provided with standards Va a', on which are supported the various parts of the machine. A scrlcs of drawing-rolls B', B2, B3, B4, B5, and

B6 are mounted on a shaft B, these drawingrolls being of the same diameter, but driven at varying rates of speed. The drawing-roll B is directly secured to the shaft B, while the drawing-rolls B2, B3, B4, B5, and B6 are mounted on sleeves rotating one within the otherV and each provided with a driving gear-wheel. Each of the sleeves is provided with 'a gearwheel, by means of which it is driven, these respective gear-wheels being designated C', C2, C3, C4, C5, and C6. These gear-wheels areA of varying diameters and mesh with correspending gear-wheels D', D2, D3, D4, D5, and D6, mounted on shaft D, the relative proportions of these intermeshing gear-wheels being such as to develop a gradually-increasing rate of revolution of the drawing-rolls B', B2, B3, B4, B5, and B6.

F designates a frame carrying the die-box F', in which are supported the several dies. Projecting from one side of the frame F are studs f, in which is journaled a shaft f', on which are mounted grooved rollers or idlers f2, about which the wire passes from one dieboX to the :next succeeding. The frame F slides upon astationary frame G, being moved longitudinally on the frame G `by means of a handlwheel G', provided with a threaded rod G2, screwing into the hollow frame G. For the purpose of lessening the friction between the frame F and the supporting-frame G roller-bearings are provided, which bearings consist of a spindle g' and an annular ring g2. Between the spindle and rin'g are placed antifriction-rolls g3.

In the operation of the machine the side strain upon the movable frame F is considerable, and the use of roller-bearings permits of an easy manipulation of the frame F in the operation of threading the dies. Upon the under side of the frame G is secured an larm H, provided at its projecting end with a pawl h, which is held in position bya spring h', provided with a notch engaginga projection formed on the pawl. Normally the pawl bears against the wire passing around the drawing-rolls, preventing it from becoming unwound when the end of the wire is released from the gripping-tongs or in case of the breaking of the wire. Achannel f 3 surrounds the IOO is the drawing-in roll I.

3o and a milled bhead j7.

die-box and is for the purpose of conducting the Iiuid pumped into the die-box back again into the main fluid-tank.

Loosely mounted on the end of the shaftB This roll acts in conjunction with the roll B to draw the Wire through the dies and around lthe drawingrolls. For this purpose the roll B is provided withan annular cut-out portion b3, the inner xo face of the cut-out portion being provided with a series of notches b4 to constitute a ratchet. In a recess I on the face of the drawing-roll I opposed to the face of the contiguous roll B is mounted a bell-crank lever i 5 I2, having a stud I3 projecting through the face of the roll and Working in the slot I4, formed therein. The other end of the bellcrank lever is provided with a stud I5, working in the annular groove b3, formed in the 2o face of the roll B, being normally held out of engagement with the notches b4 by means of the spring I6. The drawing-in roll I is provided With wire-gripping tongs J. The jaws of the tongs consist of two pieces j, sliding in a wayj, the sides of which converge. The

inner ends of the jaws j are provided with lugs jz, engaging a cut-out portion formed in a stud js, sliding in a slot jt The stud js is provided with a ange `7'5, sliding in Ways j, For the purpose of guiding the wire onto the drawing-rolls the drawing-in roll I is provided with a spiral flange I7.

K designates the wire-block, whichnisr mounted on shaft-7c, upon which is secured beveled gear-wheel 7c', meshing with beveled gear-wheel k2 on shaft o.

Situated under the drawing-rolls, the dieboX, and the idler-rolls is a tank L, contain- 4o ing the liuid which is supplied to the die-box.

For this purpose the fluid is pumped out of the tank into the die-box, passing therethrough and being discharged therefrom into the channel f3 surrounding it, which channel is inclined so as to conduct the fluid back into the tank L. L designates the finishing diebox, which is placed on the opposite side of `the rollers to the die-box F, the wire passing from this die-box directly to the wire-block K.

5o When the end of the wire is first secured to the block K, it is desired that the machine shall run at a much slower rate of speed than its normal rate, and for the purpose of varying the speed of rotation of the several partsv 5 5 the following construction is availed of: On

the shaft b2 slides a clutch M, adapted to engage the gear b', which has made integralV with it a sleeve m. 'On this sleeve is looselyl mounted a lgear-wheel m and a clutch M, 6o the clutch M being feathered on the sleeve fm. On the shaft b2 is keyed a gear-Wheel b5, meshing with gear-wheel h4 on shaft los, on

which shaft is also keyed a gear-wheel m8.` yTheclutches are operated so that when the, ,65 clutch M' is in engagement the clutch M is. out of engagement, and vice versa, the move-. ment of the clutches being accomplished by' `drawing-in roll.

`tension on the wire is constant.

a hand-lever N, to which is engaged a link n, which operates the cl utch-yokes n n2. When the wire is Iirst attached to the block and it is desired to run the machine more slowly, t-he parts are in the position shown in Fig. 10, the clutch M being in engagement with the gear-wheel m. In this position the shaft b2, rotating at its normal rate, drives the gearwheel b5, meshing with gear-Wheel 7a4, driving the shaft 7c3, on which is mounted the gearwheel m3, which meshes with the gear-wheel m', this rotating the sleeve m and the gearwheel b by means of the clutch M', the gearwheel b meshing with the gear-wheel O on' shaft o, which carries the beveled gear 702, meshing with the beveled gear k' to drive the block K. When it is desired to operate the machine at full speed, the clutch M is thrown into engagement and the clutch M is thrown out of engagement. The shaft b2 then drives the gear-Wheel b', which then directly drives the block K by meshing with the gear- `wheel O.

The operation of the device is as follows: The sliding frame F, carrying the die-box, is drawn out to its furthermost position, so .that the opening in the die-box for the rst of the series of dies comes opposite the drawing-in roll I. The end of the rod or coarse wire to be reduced after having been properly tapered is passed through the largest die and placed between the j aws j of the gripping-tongs. The jaws of the tongs are then caused to grip the wire tightly by sliding them by means of the milled head j 7 along the converging ways, so

that the jaws come together and grip tightly the rod placed between them. The machine is then set in operation and the bell-crank lever I2 is rocked, so that the projecting portion I5 engages one of the teeth of the ratchet b4, formed on the inner face of the roll B'. By this means the drawing-in roll and the roll B' move together, and the wire is drawn through the die-box and is guided inward toward the rolls by the'spiral flange I7. The

sliding frame F is then moved up, so as toy bring the opening for the next die'opposite The Wire is then passed underneath the die-box and over its appropriate grooved roller or idler back through the die and is placed in the grip of the tongs again and the operation repeated. These operations are repeated. until all the dies are filled, the last being placed in the finishing die-box and the end of the wire secured to the block K. It will be seen that by this arrangement each die is handled but once and that it remains in its place throughout the Stringing up. As the rolls are turning while the frame F is advanced, but little power is required to run the coils from roll to roll, and the graduation in speed being constant throughout the The wire is prevented from uncoiling when the end is released from the tongs by the pawl h bearing against it. When the roll is turning, the wire passes over this pawl; but on releasing IIO the jaws the tendency of the coil is to spread out to a larger diameter, which is prevented by the pawl h.

What I claim as new is- 1. The combination of a series of drawingrolls, means for operating the same, a die for each of said rolls and a sliding die-box carrying said dies, for moving the dies in front of the rolls, substantially as specified.

2. The combination of a series of .drawingrolls, a drawing-in roll, a die for each of said rolls and a sliding die-box carrying said dies whereby each die may be successively moved in front ofthe drawing-in roll, and then in front of its drawing-roll, substantially as specied.

3. The combination of a series of drawingrolls, a drawing-in ,device, a die for each of said rolls, a frame carrying the series of dies, and means for moving the frame 'longitudinally relatively to the drawing-rolls, substantially as specified.

4. The combination of a series of drawingrolls, a frame carrying a series of dies and a corresponding series of idler-rolls, and means for moving said frame longitudinally relatively to the drawing-rolls, substantially as specified.

5. The combination of a series of drawingrolls, a drawing-inroll, means for engaging and disengaging the drawing-in roll with one of the series of drawing-rolls, a die-box, and means for moving the die-box longitudinally relatively to the series of drawing-rolls, substantially as specified.-

6. In a Wire-drawing machine, the combination of a series of drawing-rolls of the same diameter,means for rotating the drawing-rolls at varying. rates of speed, a wire-block having means for driving it, and mechanism in engagement with the driving means of the rolls and block for varying the speed of the block to correspond with the rate of speed of the drawing-rolls, substantially as specified.

7. In a wire-drawing machine, the combination of a series of drawing-rolls of the same diameter, means for rotating the drawing-rolls at varying rates of. speed, a wire-block having means for driving it, and means for varying the rates of speed of the drawing-rolls and the block, said means comprising a drivingshaft, 'a sleeve on said shaft carrying a fast gear which drives the gearing of the drawingrolls and block, and a loose gear, each of vsaid gears being provided with a clutch, a sliding clutch on said shaft, a sliding clutch on said sleeve, a gear fast on said shaft, a second shaft having gears fast thereon, one of which is in engagement with the fast gear on the driving-shaft, and the other in engagement with the loose gear on the sleeve, and means for alternately' operating the sliding clutches,

substantially as specified.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

GEORGE 4B. LAMB. Witnesses:

THOMAS C. LANE, WM. E. FULTON.