US824655A - Wire-drawing machine. - Google Patents

Description

PA TENTBD JUNE 26, 1906. -J. A. HORTON- WIRE DRAWING MACHINE.

3 BHEETSSHEET 1.

APPLIOATIOH IILED APR. 7. 1906.

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No. 824,655. PATENTED JUNE '26; 1906.

- J. A. HORTONr v WIRE DRAWING MACHINE. APPLTOAIIOH mum APB.7.1905.

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PA-TENTED JUNE 26, 190

J. A. HORTbN. WIRE DRAWING MACHINE.

-APPLI 0ATION FILED APB. 7. 1905'.

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'4 UNITED STATES JAMES A. HORTON,

PATENT OFFICE.

OF PROVIDENCE, RHODE ISLAND, ASSIGNOR TO IROQUOIS MACHINE COMPANY, OF NEW YORK, N. Y., A CORPO- RATION OF NEW YORK,

WIRE-DRAWIIaG' AQI-IINE.

i'atented June 26, 1906.

' Application filed April 7,1905. Serial 1T0- 254,383.

.To alll'whom-it may concern:

Be it known that I, JAMES A. HORTON, of

Providence, in the county of Providence and- State of Rhode Island, have invented certain new and useful Improvements in Wire-Drawing Machines, of which the following is a specification. v

This invention relates to wire-drawing machines employing wire-drawing dies and drawing-drums adjacent to the dies and adapted to draw the wire through the dies, provision being made for rotating the drums at different speeds as required by the elongation of the wire in the several dies.

One object'of the invention is to enable the wire to be drawn in a dry condition -that is to say, without having the dies and the wire passing through them immersed in'liquidand at the same time to prevent excessive heating ofthe dies and the wire.

Another object of the invention is to prevent the convolutions of the wire passing around the drums from springing outwardly by the resilience of the wire when the rotation of the drum ceases or in case of breakage of the wire, the result aimed. at being to prevent the wire from dropping downwardly from one drum of a vertical drum in the same tier.

A third object of the invention is to provide convenient means i'or engaging and tier to a lower holding the bight of the wire at a point adjacent to the drum during the operation of threading the wire through a succeeding die, the wire being prevented from unwinding or loosening on the drum during the threading operation. I

The invention consists in the improvements which I will now proceed to describe and claim. I

Of the accompanying drawings, forming a part of this specification, Figure 1 represents a diagrammatic plan view of a wire-drawing machine embodying features of my invention. Fig. 2 represents a diagrammaticele vation of the parts shown in Fig. 1. Fig. 3 represents a p an view of one of the coolingchambers for the wire-drawing dies. Fig. 4 represents a section on line 4 4 of Fig. 3. Fig. 5 represents a sectional view of the coolingchamber as shown inFig. 4 and a tier of drawing-dr11ms operatively related thereto. Fig. 6 represents a section on line 66 of circulate through end of the die is forced Figs. 3 ing-chamber 20,

and Fig. 7 represents a sectional view howing a winding or storing drum and a cooling-chamber operatively related thereto.

Fig. 8 represents a section on line 8 8 of Fig. 7.

' The same reference characters indicate the same parts in all the figures.

In the drawings, 12 represents the base orbed of a wire-drawing machine-which is pro.- vided with a series of die stations or holders 13, each having a chamber 15, adapted to receive and circulate a cooling fluid, the chamber having a heat-conductin fluid-guiding wall 16, which is ,substantiaTl and preferably circular, its inner surface constituting a ta ered socket adapted'to fit the corresponding y-tapered external-surface of the die 14. The a substantially continuous external surface of the die is opposed to the wall 16, the latter being cooled by the medium in the chamber 15 and absorbing heat from the die. The wall 16 is surrounded by the chamber 15, the said wallbeing preferably a tubular bushing driven with a tight i it into an opening formed for its reception 111 the holder 13. A cooling medium is causedto the passage 15. Said medium mayenter the ply-pipe9 and leave the passage through an outlet-pipe .10, the passage being preferably subdivided by a partition 11 between said pipes. The said bushing may be composed of a suitableheat-conducting material, such as copper, and should be made relatively thin. The tapered form of the inner surface of the wall 16 .andof the external surface of the die enable the die to be held against the wall 16 by the pull exerted on the die by the wire, the die being removable from the larger the wall 16. If the wire breaks and outwardly by the recoil of the wire, the wall 16 prevents the escape of the cooling medium from the passage 15 and its contact with the wire. The cooling medium absorbs suflicient heat from the diesupporting surface and from the die to prevent injurious heating of the die and wire;

The drum 17, which draws the wire through the die, is provided with a suitable vannular wire-forwardin surface. 18, on which several convolutions 0% the wire are wound. Adjacent to the wire-forwarding surface is a cool y continuous passage through a suptinuous extendedwall 160, adapted to guide.

' the inner surface of the drum, the latter heing of. annular form. The cooling medium therefore absorbs heat from the wire-forwarding surface, thus keeping the latter and the wire engaged therewith in a cool condition, so that the wire passes to the succeeding 'die at a minimum temperature. The chamber has suitable inlet and outlet connections 21 and 22, through which the cooling medium may be caused to circulate by any suitable means. As here shown, the chamber 20 is arranged to cooperate with a plurality of drums 17, arranged one above another in a tier, substantially as shown in my application for Letters Patent of the United States, Se-

rial No. 161,567, filed June 15, 1903, the

height of the chamber corresponding with theheight of the tier/of drums. The continuity of the chamber is interrupted at suitable intervals to form openings 28, accommodating the intermediate gears 24, which connect the internal gear-teeth on the drums with the driving-gears 25, ailixed to the driving-spindle 26, the gearing being proportioned to drive the drums at different speeds, as shown 'in the above-mentioned application.

In Fig. 8 I show a cooling-chamber 200 cooperating with the winding or storing drum 28, which receives the completed or reduced wire and stores it in a coil. In this case the drum is or may be driven by means of a gear 29 on a driving-shaft 30, meshing with an external gear 31, ailixed to the drum. The cooling-chamber is shown in Fig. 7 extended outwardly at 32 into close proximity with the flange 33 at the base of the drum 28 to enable the fluid to conduct heat from the said flange and from the base of the coil resting thereon.

In this embodiment of the invention the heatabsorbing fiuid-guiding wall 160 of the cooling-chamber is or may be in contact with the inner surface of the drum, the cooling-chamber constituting the support or bearing on which the drum rotates. Nhen the drums are arranged in a tier on a vertical axis, as in this case, expansion of the coils or convolutions of the wire on the forwarding-surface of any drum above the lower one will cause the expanded convolutions to drop onto the next lower drum, thus causing confusion and dilliculty. To prevent this diiliculty, I provide for each drum an arm 40, which is pivo ted to a fixed support 41 adjacent to the drum and has a swinging end which is yieldingly pressed against the wire on the wire-forward mg surface by means of a spring 42. The arm is arranged so that it is nearly radial with the drum, so that it is adapted to act as a strut to resist outward pressure of the wire against its swinging end. In other words, an imaginary straight line intersecting the r pivot of the arm and the wire-engaging end of the arm and continued into the drum would be located slightly at one side of the axis of rotation oi the drum. ()ul ward pressure of the wire against the arm, caused either by breakage of the wire or by the elfort of the convolutions to expand, will. be directed substantially lengthwise oi the arm. Hence a light spring holding the arm against the wire is sullicient, the resistance to the outward pressure of the wire beingdue mainly to the arrangement of the arm and not to the stress of the spring.

My invention relates mainly to a wiredrawing machine adapted to draw the same wire through a series Qf (IIBS, there being a corresponding series of drums. To enable the wire to be more conveniently threaded through the dies, a series of wire-engaging cleats or clamps 43 are affixed to the bed of the machine at points adjacent to the drums and dies, the cleats being formed and arranged so that a bight of the wire passing from adruin can be engaged and securely held by a cleat, the wire between the cleat and the drum being thus held tight, while the wire between the cleat and the die is loose and can be free] y manipulated by the operator.

The cleat or clamp 43 as here shown eonstitutes an upper jaw cooperating with the portion of the bed over which it is located, said portion constituting a lower jaw. The clamp as a whole may therefore in this embodiment of my invention be considered to be the part 43 and the corresponding part of the bed. The mouth of this clamp is directed toward the die, so that when the leading end of the wire has been threaded through the die and is being pulled forward the pull of the wire will draw the portion engaged with the clamp from the delivering end of the latter, the clamp being adapted to deliver the wire toward the die. The operator therefore is not required to disengage the wire from the clamp, the disengagement being eil'ected by the pull on the leadin end of the wire.

I claiin 1. In a wire-drawing machine, the combination of a body having a fluidcontaining chamber one wall of which is composed oi heat-absorbing material, with a separate wire-engaging member having a surface for engaging the wire and another surface in parallel juxtaposition to the external surface of the heat-absorbing wall of the said fluid-containing chamber, substantially as described.

2. In a w.ire-dra'\.ving machine, the combination of a body having a cooling-chamber one wall of which is circular in section, a sepa rate member havinga wire-engaging surface adapted to become heated by the friction of the wire, and another surface seated against the outer surface of the wall of the cooling chamber, substantially as described.

. 3. In a wire-drawing machine, the combination f a ody having a fluid-containing chamber one wall of which is composed of wire-engaging-member having a surface for engaging the wire and another substantially continuous extended surface in contact with the external surface of the heat-absorbing wall of the said fluid-containing chamber; substantially as described. a

4. In a wire-drawin machine, the combination of a body havlng afluid-containing chamber one wall of which is composed of heat-absorbing material, with a separate wire-engaging member engaging the wire and another substantially continuous extended surface in contact with the external surface of the heat-absorbing wall of the said fluid-containing chamber, said heat-.absorbin wall being composed of a relatively thin so described. i

5; In a wire-dra g machine, a tier of heat-absorbing material, with a separate having a surface for.

- toward the die.

metal, substantially as i drawing-drums on a substantially vertical axis, and pivoted fingers yieldingly pressed toward the wire-forwarding surfaces of the drums, whereby the dropping of a convolution of wire from one drum to another is prevented.

6. In a wire-drawing machine, a drum, a die, and a wire-clamp adjacent to the path of the wire passing from the drum to the die and adapted to engage and hold a portion of the wire durin the opcrationof threading the leading en of the wire through the die, said clamp having its mouth directed toward the die, whereby it adapted to deliver the wire In testimony whereof I signature in presence of two witnesses.

JAMES A. HORTON. Witnesses:

C. F. BROWN, E. BATCHELDER.

have allixcd my

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