US975641A - Continuous-wire-drawing machine. - Google Patents

Description

H. SAVILLE. CONTINUOUS WIRE DRAWING MACHINE.

APPLICATION FILED MAI 13.119 0. V

' Patented NOV. 15, 1910.

2 SHEEN-SHEET 1.

H. SA VILLE. CONTINUOUS WIRE DRAWING MACHINE.

APPLICATION FILED MAY 3, 1910.

Patented NOV. 15, 1910.

2 SHEETS-SHEET 2.

' ject of the King of Great Britain,

ing passed through a series wire due to its reduction in theoretically lid To all whom it may concern:-

wire is traveling.

AND, ASSIGNOR TO THE BRITI$H.STEEL &

IiPlJhRRY SAVILLE, OF MANCHESTER, ENGL 9F MANCHESTER, ENGLAND.

WIRE COMPANY, LIMITED,

Be it known that vI, Hanna SAviLnn, a subresiding at Wire W orks,.T rafiord Park,-Manchester, in the county ofLancaster, England, have invented ccrtainnew and useful Improvements in Continuous Wire Drawing Machine'ry, of which the following is a specification.

This invention rclates to continuous wire drawin machinery wherein the wire to be drawn 1s reduced a number of dies in one continuous drawin process.

In drawing wireiy the continuous process it is necessary in practice to revolve each forwarding drum faster than the. preceding one in order to allow for the eldngation of the thickness. The required speed is only obtainable ap roxiinately by calculation, as the variation in the size of a die-end the during each wire drawing operation makes it necessary to revolve the forwardin drums at a speed. greater than would deliver the ascertained amount for elongation. Also when different sizes of wire are to be drawn, and the reductions vary at each die fromwhat was calculated for some other size or: dies, as certain amount ofslip takes place between the Wire and the forwarding drums owin to the latter speed in excess of the speed at which the This slipping of the wire around the forwarding drums, removes the coating, scratches the Wire, and destroys the wire forwardingseats of the drums. view to obviating this objection it has been proposed to control the speed at which each of the forwarding drums is driven through a mechanical variable speed device con trolled by the pull exerted upon the wire by the next succeeding drum.

According to this invention each drum is driven through one ormore cones and a-fric tion device arranged to be traversed longitudinally with respect to the cones by vana- 1 tion in the pull exerted upon the wire by the and of being put out next succeeding drum of engagement with. the said cones.

In order that the said invention may be .clearly understood and be readily carried into effect the same will be described more fully with reference to the accompanying drawings, in which Specification of Letters Patent. Application filed May it, 1910.

Figure l is a plan of a portion of a wire of times by he wear which takes place revolving at a peripheral With a CONTINUOUQWIRE-DRA'WING MACHINE.

Patented Nev. 115, 1910. Serial No. 561,206.

drawingmachine constructed in accordance with this invention. Fig. 2 is a similar view drawn to an enlarged scale. Fig. 3 is a transverse section taken on line 3, 3, of Fig. 2. Fig. 4 is a horizontal section of the 'variable speed device drawn to an enlarged scale. Fig. 5 is a transverse section taken on line 5, 5, of Fig. 4, and Fig. 6 is a horizontal s'ection'of a modified form of the variable speed device. I

A represents the wire drawing drums, B the-wire, and C the dies.

Referring more particularly to Figs. 1 to 5, each ofthc drums Ais mounted upon an upright spindle a journa-led in hearings a supported by the machine frame a at opposite sides of a main driving shaft D that extends from one end to the other of the machine. Each spindle a carries a worm wheela thatgemrs with a worm a formed on or rigidly secured to a short. rotatably mounted shaft o which. is arranged parallel'to the main driving shaft D from which. the drive is transmitted to each of the drums A in the manner hereinafter described. Each short shaft a is mountedin pivoted arms a supported from a shaft a. and carries a cone a on which is loosely mounted a frictional driving, band a adapted by means of a weight a" or other sultable device to be retained in yielding frictional contact with a corresponding cone d mounted inversely upon the main driving shaft D, the said weight being adjustably mounted upon an arm (1 that is arranged in rigid connection with one of the arms a. The frictional driving band a is capable of being traversed to any required position between the cones a and (Z by means of a hand lever E pivoted at e to the machine frame and constituting a starting and control lever. Connected to this lever is alslidably mounted rod 6 on which is pivoted a pair of fingers 6 adapted to engage with the opposite edges of the i band a. Each hand lever E is arranged to, be mechanically operated in one direction by a weight or other suitable device and carries a grooved pulley e suitably arranged 5 in rclation'toi drum and to a guide pulley 0 over which the wire passes on its Way to each wire drawing 1 i die. 0 Each weight 6 is connected to its respective lever E by a cord or chain indicated by dotted lines in F 1g. 3, said connection recesses formed cone on the main driving shaft D. This is effected by forming the large end of each cone a with a portion a of reduced diameter so that when the frictional driving band a occupies a position upon such reduced por- -.tion it exerts'no frictional driving power upon the cone'on the main driv ng shaft.

The same efiect can be obtained by forming the large end of the driving cone 1.! with a portion d of reduced diameteras shown in Fig.6.

When the apparatus is being used'as a continuous wire drawing machine the end of the wire B is pointed in the usual way, and asuificient length is drawn through the first die 0 to enable its end to be secured to the first drum A. The hand lever E relating to such drum is then operated to transfer tlie frictional driving band a into frictional contact between the driving cone 0: and the driven cone d and so to set the drum gradually in motion. After several wraps of wire have been wound onto the drum, the latter is brought to rest by actusting the aforesaid hand lever to return the driving band a to its inoperative position, whereupon the end of the wire is released from such drum and is passed over the pulley mounted upon the hand lever The wire is then drawn through the second die (1 and is secured at its end to the second drum A which is set' in motion by actuating its hand lever E to cause a number of turns of wire to be wound 'upon' the second to' transfer the frictional driving band a drum. After this operation has been effected the wire after being passed around the pulley e appertaining to the lever of the second drum is then conveyed to the third drum and so on, throughout the series to a finishing or storing drum. By this arrangement the pull exerted upon the wire B by any one drum causes the hand lever ofthe preceding drum to be moved in opposition to its weight a or other device and machine frame.

dividually and may be driven at any predetermined constant speed by securin its hand lever in any predetermined position by means of its locking pin 6. Or any two or more of the said drums may be used independently .of the others. It is known that friction cones with an interposed friction driving band actuated by hand have already been employed in connection with wire drawing machines-and that such "appliances constitute a well known form of change speed device. 1

The details of construction can be variously modified without departing from the nature of the invention; for example in lieu of the driven cone and the loosely mounted friction band above described with reference to Figs. 1 to 5, a friction wheel a see Fig. 6 may be fixed upon a shaft a arranged parallel with the adjacent side of the driving cone 0! and slidablyimounted in bearings a suitably supported in relation to the machine frame. This shaft is connected with its respective hand lever E in such a manner that the friction wheel a can be traversed from end to end of the driving cone d or be moved out of contact therewith when required. In order to permit of this endwise movement the worm a is loosely mounted on such shaft and drives the latter by means of an internal key engaging with a groove a in the shaft, endwise movement of the worm being prevented by two of the bearings a. I

hat I claim and desire to secure by Letters Patent of the United States is 1. In a continuous wire drawing machine, I

the combination with the dies and drums,- of

a plurality of driving cones, friction devices arranged to be traversed longitudinally with respect to the cones, and means whereby the pull exerted upon the wire by one drum controls-such traversing of the friction devices for regulating the speed at which thepreceding drum is driven.

Q. In a continuous wire drawing machine, the combination with the dies and drums, of a plurality of driving cones, friction devices arranged to be traversed longitudinally with respect to the cones. levers operatively connectcd with the friction devices, means whereby said leversare actuated in one direction by the pull exerted upon the wire, and means for exerting a pull upon the levers in opposition to the pull exerted by the wire.

3. In a continuous wire drawing machine, the combination with the dies and drums, of a plurality of driving cones, friction devices arranged to be traversed longitudinally with'respect to the cones, levers operatively connected with the friction devices, a pulley carried by each lever,. said pulley being adapted to have a loop of wire bent therearound in the passage of the wire from one drum to the next succeeding means for exerting a pull upon opposition to the pull exerted by the wire.

4. In a continuous wire drawing machine, the combination with the dies and drums,

drum, and

ranged to make frictional contact with an adjacent cone, a lever operatively connected with each driving band to traverse the latter longitudinally with respect to the cones, a pulley carried by each lever said pulley being adapted to have a loop of wire bent therearonnd in the passage of the wire from one drum to the next succeeding drum,' and means for exerting a pull upon the levers in opposition to the pull exerted by the wire.

5. In a continuous wire drawing machine, the combination with the dies and drums,

of a plurality of driving cones, a plurality of driven cones arranged adjacent thereto, pivoted arms for carrying the driven cones, friction drivin bands encircling the-driven cones, means or compressing the friction driving bands between the driving and the driven cones, means for rotating the drums from the driven cones, and means whereby the pull exerted upon the wire by one drum controls the position of the friction device between the driving and the driven cones for regulating the speed at which the preceding drum is driven.

6. In a continuous wire drawing machine. the combination with the die-sand drums, of

" a plurality of driving cones, a plurality of j the levers in cones, means for coiiipi'essing the friction driving bands bet-ween the driving and the driven cones, means for rotating the drums from the driven cones, levers operatively Connected with the friction driving bands, of a plurality of dr1 ving cones, a friction driving band encircling one cone and ari a pulley carried by each lever, said pulley being adapted to have a loop of wire bent thercaround in the passage of the wire from one drum to the nextsucceeding drum and means for exerting a pull upon each lever in opposition to the pull exerted by the wire. 7. Ln a continuous wire drawing machine, the combination with the dies and drums of a plurality of driving cones, a driving shaft on which such cones are fixed at intervals, two driven cones situated at opposite sides of the driving shaft'adjacent to each driving cone, pivoted arms for carrying the driven cones, friction driving hands encircling the driven cones, means for compressing the friction driving bands between the driving and the driven cones, the cones being providedwith means for releasing such compression, means for rotating the drums from the driven cones,levers operatively connect ed with the friction driving bands, a pulley carried by each lever, said pulley being adapted to have a loop of wire bent therearound in the passage of the wire from one drum to the next succeeding drum, and means for exerting a. pull upon each lever in opposition tothe pull exerted by the wire.

driven cones arranged adjacent tl ereto, pivoted arms for carrying the driven cones,

friction driving bands encircling the driven In testimony whereof I ailix my signature in presence of two witnesses.

HARRY SAVILLE. Witnesses: p y

W. Romivson, N. K. MoNriULL,

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