US2262247A - Wire drawing mechanism - Google Patents

Description

N0v.11, 1941. N. H. NYE. 2,262,247

` WIRE DRAWING MECHANISM Filed May 24, 1940 2 sheets-sheetfzf.

INVENTOR.

NORMAN H.NYE

ATTORNEYS l Patented Nov. 11, 1941 WIRE DRAWING MECHANISMl Norman H. Nye, Cuyahoga Falls, Ohio, assignor to The Vaughn Machinery .00., Cuyahoga Falls, Ohio, a corporation of Ohio Application Maye4, 1940, serial No. 337,011

(ci. '20s- 20) 7 Claims.

This invention relates, as indicated, to wiredrawing blocks and the like and more particularly to an improved method and apparatus for cooling such blocks and the wire wrapped thereon.

As wire is drawn through a die, it becomes highly heated and if the wire passes through successive dies without being cooled therebetween, such heating becomes excessive with resultant injury to the wire. This fact has llong been recognized by those skilled in the art and various cooling means suggested to overcome the problem. That most generally accepted has been some form of water spray applied to the interior surface of the block or drum thus cooling both the drum and the wire wrapped thereon. Various disadvantages consequent upon the employment of this cooling means soon became apparent, however, such as the tendency of the water to enter the upper bearings `supporting the block and the difliculty due to centrifugal force of removing the water from the block in the desired manner and at the desired rate.

It is, therefore, among the objects of this invention to provide an improved method and apparatus for cooling wire-drawing blocks.

Another object is to provide apparatus of the above-described type whereby a cooling liquid such as brine may be circulated within such block without contacting any moving parts and yet be eiective to cool both the block and the wire wrapped thereon.

Other objects of this invention. will appear as the description proceeds.

To the accomplishment of the foregoing and related ends, said invention, then, consists of the means hereinafter fully described and particularly pointed out in the claims.

The annexed drawings and the following description set forth in detail certain means and one mode of carrying out the invention, such disclosed means and mode illustrating, however, but one of various ways .in which the principle of the invention may be used.

In said annexed drawings:

Fig. 1 is an elevational view in cross section of my new block illustrating the cooling means and showing a portion oi the driving mechanism;

Fig, 2 is a top view of the non-rotatable inner cooling chamber;

Fig. 3 is a side elevational view of such chamber; and

Fig. 4 is a horizontal cross section taken through the block along the line fil-Ii on Fig. 1. 55

As indicated above, the principle of my invention is adaptable to the various types of wiredrawing blocks, drums and take-up reels commonly employed, whether they be single or double-decked, intermediate on a continuous bench, or the drum on which the wire is wound at the end of the operation. Broadly, the idea of cooling such blocks by means of water or air streams is old as taught by Pat. No. 1,723,313 to 'Iippet dated August 6, 1929, and Pat. No. 1,959,901 to McIlvried dated March 13, 1934.

Referring now more particularly to the abovedescribed drawings, one preferred embodiment of my invention comprises a cylindrical block or drum I about which the wire is woundpmounted on a tubular vertical spindle 2, such spindle being journalled at its lower end in roller bearing 3 and nearits upper end in roller bearing 4. Bearing 4 is supported in supplemental frame 5 which in turn rests upon and covers the boxlike main frame 6. Said main frame also serves as an oil reservoir in which gear 'I, which drives spindle 2, turns. Said main frame is supported by base member 8 which forms a chamber 9 immediately below said spindle.

Mounted at their lower ends in frame piece I0 are two concentrically disposed tubes l I and I2 which extend upwards through said cored or tubular spindle and support annular chamber I3 within the block, tube II communicating with the interior of such chamber at one side by way of passage I4 and tube I2 communicating with such chamber on the other side by way of passage I5. For convenience in construction, an opening is provided in the upper end of passage I4 above tube Ii, such opening later being tightly sealed as by a screw plug I6, or the like. A plug hole (not shown) is also provided in the top of the block to permit of entrance to the interior thereof. Chamber I3 is provided with a number of baiiles Il to cause ,a thorough circulation and mixing of a liquid passing therethrough. Ihe exterior surface of said chamber is likewise provided with ilow deflecting means in the form of spirally arranged ridges I8 which are designed to enhance the circulation of a cooling liquid contained within said block.

Tube I l communicates with pressure line I9 by way of valve 2u and discharge tube l2 debouches into inner chamber 2l in frame piece I0 and thence into chamber 9. Also within tubular spindle 2 and mounted in frame piece I Il is an outer concentric tube 22 spaced from tube I2 by perforated ring Zt, such means serving to conduct any liquid seepage from the interior of the block to outlet 24 and preventing contamination of the oil in main frame 6.

Exterior cooling of the drum and wire wound thereon may be provided in the form of air jets coming from orifices 26 disposed around the inwardly sloping upper face of supplemental frame 5, compressed air being introduced to annular chamber 25 formed by said frame.

The operation of my device may now be-described in detail. A cooling liquid, preferably water, is introduced to the interiorrof the block which is lled to a level just below that of the upper end of spindle 2. A refrigerant, which may also be cold water or other liquid but is pref.- erably brine, for example, from line I9 enters stationary chamber I3 after passing through valve 20, tube Il and passage I4. It then circulates around baiies I1 to outlet passage I5 and out by Way of tube I2 to chamber 9, whence it may be drawn oi for re-circulation as in the usual refrigerating system, or otherwise disposed of. As block I revolves,`the water therein tends to swirl therewith and the spirally arranged ridges I8 on the exterior surface of the inner chamber serve 'to enhance the circulation of the Water within the block, greatly increasing the efciency withwhich heat is taken from the block by the water therein, and also the eiciency with which the brine or other refrigerant in the inner chamber extracts the heat from such water.

It is apparent that other means for causing such circulation within the block may be provided as by spiral ridges on the inner surface of such block instead of on the' inner chamber and all such means are Within the broad scope of the present invention.

It will be seen that the objects of this invention have been achieved in that a means of cooling wire-drawing blocks and the wire thereon has been provided which is most efficient in operation and yet is not endangered by seepage of brine, for example, since such brine nowhere contacts a running seal or joint, nor is the normal operation of the block in any way interfered with.

Othermodes of applying the principle of my invention may be employed instead flfthe one explained, change being made as regards the mechanism herein disclosed, provided the means stated by any of the following claims or the equivalent of such stated means be employed.

I therefore particularly point out and distinctly claim asl my invention:

1. In a wire drawingY mechanism, the combination of a hollow rotatable block adapted to contain a cooling liquid against the inner surface of the wire-contacting portion of Said block, a nonrotatable inner chamber immersed in such liquid and adaptedto have a refrigerating liquid circulated therethrough, and spirally arranged flow deflecting means for enhancing circulation of such first-named liquid upon rotation of said block.

2. In wire drawing mechanism, the combination of a hollow rotatable block adapted to contain a cooling liquid against the inner surface of the wire-contacting portion of said block, a nonrotatable inner chamber immersed in such liquid and adapted to have a refrigerating liquid circulated therethrough, baiile means within said inner chamber, and spirally arranged flow deflecting means on the exterior surface of said chamber for enhancing circulation of such first-named liquid upon rotation of said block.

3. In wire drawing mechanism, the combination of a hollow rotatable block adapted to contain a cooling liquid, against the inner surface of the wire-contacting portion of said block, a nonrotatable annular inner chamber immersed in such liquid and adapted to have a refrigerating liquid circulated therethrough, baille means within said inner chamber, a cored spindle xed in said block and rotatable therewith, inlet and outlet passageways within said spindle communieating with said inner chamber, and spirally arranged ridges on the exterior surface of said chamber for enhancing circulation of such firstnamed liquid upon rotation of said block.

4. In wire drawing mechanism, the combination of a hollow rotatable block adapted to contain a cooling liquid against the inner surface of I the wire-contacting portion thereof, an inner chamber within said block sealed from commuknication with the interior of said block, and

means for circulating -a refrigerant through said chamber.

5. In wire drawing mechanism, the combination of a hollow rotatable block adapted to contain a cooling liquid against the inner surface of the wire-contacting portion thereof, an inner chamber within said block sealed from communication with the interior of said block and adapted to be immersed in such cooling liquid, and means for circulating a refrigerant through said chamber.

6. In wire drawing mechanism, the combination of a hollow rotatable block, an inner nonrotatable chamber entirely within said block, a cooling liquid between said chamber and the inner surface of the wire-contacting portion of said block, and means for circulating a refrigerant through said chamber.

7. In wire drawing mechanism, the combination of a hollow rotatable block adapted to contain a cooling liquid, a non-rotatable-chamber entirely within said block adapted to be immersed in such liquid and adapted to have a re- `frigerant circulated therethrough, and flow deflecting means for enhancing circulation of such first-named liquid upon rotationlof said block.

NORMAN H. NYE.

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