US543858A - Machine - Google Patents

Description

(No Model.) 2 Sheets-Sheet 1. V. E. EDWARDS. WVIRE DRAWING MACHINE. No. 543,858.l Patented Aug. 6,1895.

2 Sheets-Sheet 2.`

(No Model.)

V. E. EDWARDS. l WIRE DRAWING MACHINE. No. 543,858. Patented Aug. 6,1895.

Swanton WAX/Cof@ 52h/m34) .UNITED -STATES PATENTA OFFICE.

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VICTOR E. EDWARDS, OF WORCESTER, MASSACHUSETTS, ASSIGNOR TO THE MORGAN CONSTRUCTION COMPANY, OF SAME PLACE.

WIRE-DRAWING MACHINE.

SPECIFICATION forming part of Letters Patent No. 543,858, dated August 6, 1895. Application filed Tilly 8, 15,93. I Serial No. 479,968. (No model.)

To all whom/ it may concern.-

Beit known that I, Vieron E. EDWARDS, a citizen of the United States, residing at Worcester, in the county of Worcester and State of Massachusetts, have invented a new and useful Improvement in Tire-DrawingV Machines, of which the following is a specification, reference being had to the accompanying drawings, forming a part of the'same, and representing a wiredrawing machine embodying my invention, in whichy Figure l represents a perspective View of the machine. Fig.r2 is a plan view of the same. Fig. 3 is a vertical sectional view on line 3 3, Fig. 2. Fig. 4 isa central sectional View of the drawing-block carried upon the end ofone of the conical drawing-drums, the section being taken on line 4 4, Fig. 5. Fig. 5 represents an end view of the drawing-block in section shown in Fig. 4, the hand-Wheel having been removed on line 5 5, Fig. 4; and Fig. 6 is a sectional view of the gripping-jaws on line 6 6, Fig. 5.

Similar letters and numerals refer to similar parts in the different figures.

My invention relates to certain improvements in that class of wire-drawing machines in which the Wire is drawn through several successive dies in a continuous operation; and it consists in the several features hereinafter described and `specically pointed out in the annexed claims.

Referring to the accompanying drawings, A denotes the supporting stand or framework, in which is journaled a horizontal drivingshaft A', provided with tight and loose pulleys A2 A3, and a pinion A4, engaging gears A5 A5 upon the shafts B and B', journaled in the framework of the machine and carrying conical wire-drawing drums B2 and B3, provided with circumferential V-shaped grooves B4. The shaft B carries the bevel gear B5, which engages a bevel-gear upon the vertical shaft C, journaled in the framework of the machine and provided with a spur-gear C', engaginga spurgear C2, attached to the drawing-block C3, which rotates upon a stud C4, heldin an arm C5, projecting from the framework of the machine.

Supported by the framework of the machine and between the conical drawingdrums I B2 and B3 is a die-box or trough D, with its bottom D inclined to correspond with the taper of the conical drawing-drums B2 and B3. The die-box D is provided with a central partition D2, which, with the side walls D3 and D4, is provided with vertical slots D5, placed in alignment with the V-shaped grooves B4 on the conical drawing-drums B2 and B2, allow- 4ing the wire in the operation of drawing to pass from one ofthe drawing-drums to the other through the slots D5, and also through reducing-dies E, which rest against the central partition D2 and the side wall D3 of the trough D, by which the dies E are held from longitudinalmovement as the wire is drawn through there. The die-box D is also provided with a series of transverse partitions F, extending across each of the two divisions of the die-box between each set of dies, forming separate compartments F, each containing a reducing-die E.

Attached to the end of the wire-drawing drum B2 is a plate G, provided at its periphery withV a gib G', inclosing the edge of a vflange G2 upon a drawing-block G3. (Shown in central sectional view in Fig. 4 and in end view in Fig. 5.) The drawing-block G3 is provided with a concentric sleeve G4, loosely litting the end of the shaft B and provided with an internal screw-thread G5 to receive a screw G5, having a central screw-threaded hole, in which is carried a screw G7provided with a tapering point G5, which enters a countersunk depression G9 in the end of the shaft B. The plate G is made in halves, s o as to be applied to the flange G2, and is attached to and rotated with the conical drawing-drum B2, and the drawing-block G3 is capable of turning within the annular gib G', thereby allowing the drawing-block to remain at rest during the rotation of the drum B2 and plate G. The screw G7 is provided with a hand-wheel G10, by which the screw is turned and pressed against the end of the shaft B2 to draw the block G3 o the end of the shaft B and crowd the inclined surface G14 against the gibG, in

`order to produce a frictional resistance sufficient to cause the drawing-block G3 tobe rotated with the plate G.`

The end of the drawing-block G3 is provided IDO with a recess G42 to receive a wire-gripping y device carried by the drawing-block and piv oted thereto by means of a screw G13.

The gripping device consists of a jaw H, formed of a bar pivoted upon the screw G13 and provided with teeth H', and a jaw H2, provided' with lugsl'l3, which are pivoted to the jaw II by a pin H4. The jaw H2 is provided with a tail-piece H3, extending rearwardly, to which pressure is applied to rock the jaw H2 on its pin Il1 and separate the jaws to insert the wire, and between the rear wall H3 of the pivoted jaw H2 and the shoulder H7 on the jaw H is placed a spring H3, with its tension exerted upon the pivoted jaw to rock it upon thev pin H1 and carry the teeth H9 forward and downward toward the teeth H', so that the end of a wire inserted between the teeth II and llil will be securely held, as the tensile strain exerted upon the wire will tend to carry the teeth H9 of the pivotedA jaw forward, rocking the jaw upon the pin H1, and the forward motion ot' the teeth Il", caused by the angular motion of the jawon the piu H1, will cause theteeth H1 to approach the teeth H and engage the wire held between them, the initial bite of the teeth upon the wire being due to the pressure of the spring H3.

The drawing-block G3 is provided with a curved surface I, leading from the recess G12 to the circular face or periphery I ot' the drawing-block, the curved surface I being tangential to the periphery l and also to a straight line passing through the center ofl the screw G13, which represents the line of draft of the wire as held between the jaws H H2. A fiange J projects from the front side of the die-box, forming a platform or shelf, which supports a swinging bar J, pivoted to the flange J at J2 and having at its free end two upright prongs J3 J3, .against which one of the dies E is placed, for the purpose ot` holding the die from longitudinal movement as the wire is drawn through it.

In the operation of the machine the wire is successively reduced in diameter by the several reducing-dies in their numerical order, the first reduction being made by die l, the second by die 2, and so on, and in order to introduce the wire to the machine the diameter of the wire must be reduced to correspond to each of the dies-that is, it must be reduced in diameter sufficiently to pass through die 1, around the conical drawing-drun1s B2 and B3, and further reduced to pass through die 2, and again around the conical drawingdrums B2 and B3, and still further :reduced to pass through die 3, and so on through the successive dies and around the drawing-drums B2 B3 to the drawing-block C3, upon which it is wound in the usual manner, the periphery of the drawing-block being tangential to the line of wire as it is delivered from the last V- shaped groove in the conical drawing-drum B3. The several dies from l to S, inclusive, are held within the compartments F of the die`box and against'the side wall D3and central partition D2, and the last die 9 is held by a supporting-bracket placed outside the diehox for lack of room within the die-box.

The successive reductions of the wire necessary to introduce it to the reducing-dies are accomplished by pointing the end ofthe wire and passing it through the larger ot the dies or die l and seizing the pointed end by the gripping-jaws H H2, with the die l placed upon the swinging bar J and against the up right prongs J3 J3. The block G3 is then ro tated by turning the hand-wheel G10 and operatively connecting the block with the plate G, carried by the rotating drawing-drum B2. As the block G3 rotates, the wire is held bythe gripping-jaws H H2, is conducted over the curved surface I upon the circular face I ot theblock G3,andasnicientquantityis wound thereon to lill the drawing-drums B2 B3, the swinging-bar J, carrying the reducing-die, allowing the wire to be traversed upon the block G3. The wire is then removed from the block G3, the die l placed in position in the die-box, and the end ot the wire again pointed and passed through die 2, which is held upon the swinging `har J, and the wire is seized by the gripping-jaws H H2 and the operation again repeated, and so on through each of the reducing-dies successively until the wire is car ried through each of the dies and around the drawing-drums B2 B3 with the dies held in position in the compartments F2 of the dieboX D, as represented in Fig. 2 of the drawlngs.

Beneath the drawing-drums B2 B3, I place a reeeiving-pan K, provided with a strainer K, communicating with a trough K2, containing a lubricating-liquid, which is forced from the trough K2 upward through a pipe K3 by the revolution ot' a centrifugal pump K1 and delivered to the die-box D, filling the upper of the compartments F and flowing over the highest of the transverse partitions F to the next lower compartment, thence over the next transverse partition to the next lower co1npartment, and so on through the several compartments of the die-box, the nal overflow falling into the receiving-pan K and through the strainer K to the trough K2.

The sides of the die-box D are provided with aprons L L, which extend partially over the drawing-drains B2 B3, so that the lubricat ing liquid escaping from the die-box through the slots D3 isA delivered upon the drawingdrums B2 B3, lubricating the surfaces of the drums and dripping from them into the pan K. The centrifugal pump K4 is driven by a vertical shaft K5and pulley K3 by a belt connection from an overhead or counter shaft, the belt connection being carried around the idle-pulleys K7 K1.

The vertical pipe K3 is provided with a valve at K3, operated by a valve-stem K, extending to the front of the machine, by which the flow of liquid through the pipe K3 is regulated. Whenever a change in the size ot' the wire to be drawn is necessary to vary the diameter of the drawing-block C3, the axis of IOO the block is changed so as to bring its actuating-gear in mesh with the gear C and also bring its periphery tangential to the line of wire as delivered to the drawing-drumBa, and` this is accomplished by providing the arm C5, upon which the drawing-block is supported, with a series of holes M, adapted to lreceive the stud C5.

lThe arrangement of the die-box D, placed at an inclination and provided with a series of transverse partitions, causes the lubricating liquid pumped into'the highest ofthe compartments to flow over the tops of the partitions F, which serve as dams, producing an agitation of the liquid throughout each of the compartments, at the same time retaining a body of liquid in each compartment sufficient to completely immerse the wire.

Th e gripping-jaws H and H2can be raised out of the recess G12 by rotating them upon their pivotal screw G13, in order to allow the end of the wire to be insertedgbut when the block G3 is rotated in the operation of winding wire thereon the gripping-jaws occupy the position represented in Fig. 5, lying wholly within the arc of the circle describing the periphery of the block G2, so that as the wire is traversed across the face of the block and wound against the flange G2 the coils of wire already wound upon the block will be pushed toward the end and over the recess G12, thereby utilizing the entire face I for the wound wire.

VhatI claim as my invention, and desire to secure by Letters Patent, is-

i. In a wire drawing machine, the combination with a pair of wire drawing drums, of an inclined die box placed between said drums, a series of dies held in said die box at different vertical planes, and means for feeding lubricating liquid to said die box at its highest side, whereby said lubricating liquid is caused to iiow over said dies in succession, substantially as described.

2. In a wire drawing machine, the combi-c nation with a pair of wire drawing drums, of a die box placed between said drums and in an inclined position, means for feeding lubricating liquid to its highest side, whereby said liquid is caused to flow over said inclined die box, and a series of partitions placed transversely to the flow of said liquid over the surface of the die box, whereby said stream is impeded, and a series of dies held in the spaces between said partitions, substantially as described. l

3. In a wire drawing machine, the combination of wire drawing drums, an inclined die box arranged to receive a flowing stream of lubricating liquid, transverse partitions of varying vertical height forming a series of dams over which said stream tiows, and a series of dies held in said box, substantially as described. l

4. In a wire drawing machine, the combination with a pair of wire drawing drums, of a die box held between said drums, and having side walls, as D3 and D4, parallel with the axes of said drums, means for feeding lubricating liquid to said die box and aprons, as at L, extending from the sides of said die box over said drums, whereby the overliow at the sides of said die box is conducted to and delivered upon said drums, substantially as described.

5. In a wire drawing machine, the combination of a pair of wire drawing drums, a wire block carried upon the end of one of said drums, wire gripping mechanism carried by said wire block and a pivoted die holding lever, capable of an angular motion by which the wire is allowed to traverse upon said block, substantially as described.

6. In a wire drawing machine, the combination of shaft B, a plate G concentric with said shaft and `having a gib G', a wire block G2, held by said plate, and having a sleeve G4 inclosing said shaft and a screw G7 carried by said block and Lacting against the end of said shaft to operatively connect the block and plate, substantially as described.

7. The combination with adrawing block of a bar H pivoted at one end to said block and having teeth H at its opposite end arranged in a plane corresponding with the line of draft, a jaw H5, provided with teeth H9 arranged in a plane corresponding with the line of draft, lugs H3 projecting from the jaw H2, at right angles to the plane of the teeth and pivoted at their ends to said bar H, said bar H having a shoulder H7, and said jaw H2 having an opposing wall H6, a spring inserted between said shoulder and said wall to close the teeth of the jaw upon the teeth of said bar and a projecting tail piece H5, by which the jaw is opened, substantially as described.

8. In a wire drawing machinethe combination with a pair of wire drawing drums, of a die box placed between said drums having aprons L, II, extending from the sides of said box over said drums, a receiving pan K beneath said drums, a strainer K', a trough K2, pipe K3, pump K4, valve K8, in the pipe K3 and a valve stem K2 extending from the valve K8 to the front of the machine, substantially as described.

9. In a wire drawing machine, the combination of a pair of conical wire drums B2 and B3, carried on the projecting ends of shafts B and B2 having parallel axes, avdie box placed above the plane of said shafts and at an inclination corresponding to the inclination of the upper sides of said conical drums, said box having side walls D3 and D4, provided with openings to receive the wire, transverse partitions at right angles to said side walls, and dies held between said transverse partitions, substantially as described.

Dated this 6th day of July, 1893.

VICTOR E. EDWARDS.

Witnesses:

RUrUs B. FowLER, EMMA KESTER.

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