US1646896A - Wire-drawing bench - Google Patents

Description

lill) Patented WERE-DRAWENGI BENCH.

Application tiled January 1.2, 1924i, Serial No. G?, and in France august 1t, i923.

The presentinvention relates to wiredrawing machines, and it resides in the provi sion ot certain improved features ot construction and arrangement ot parts whereby machines of the character indicated can be run at much higher speeds than has heretotore been possible; such speeds reaching as high as l0@ lriloineters per hour.

An embodiment oit the invention is illustrated in the accompanying drawing, whereinf;

Figure l is a iront view of the improved machine; v

llig. 2 is a side elevation thereof; ,l llliga 3 is an enlarged view ot one ot the cooling vessels and its associated drawing plate.

As shown in said drawing the improved machine embodies two vertical walls or sides e and b, supported upon a bed plate a, and wherein are journaled two pairs of diverging shafts c4 c5 c and c7 res ectivel carr 1n ,t and through vesse the stepped drawing cones c, 0.','02 and c3. These cones are disposed outside ot wall (to .the right ot the wall in liiig. 2), and between said wall and the wallI a the .drawing shalts are designed to carry the driving pulleys whereby they are rotated, illustra tion ot said pulleys being omitted as forming no part or the actual invention.

A pair ot ll-shaped cooling vessels e and e, one substantially between the cones c, c', and the other between the cones c2, c3, is provided, the rear wall ot each vessel being constituted by a drawing plate f; said plates being disposed perpendicularly to the strands ol wire undergoing treatment. rlhe vessels are each divided by vertical partition plates into a series ot compartments, the number oit which corresponds to the number ci drawing dies or the lilre with which the plates and jf are equip ed, so that there will be one compartment or each thickness ol wire; and the plates ot-each vessel are preferably steped so as to cause the cooling 'quid to overow trom one compartment tothe nent. The compartments ot larger sizes are reserved tor the thicker strands or sections ot wire and the smaller sized compartments are reserved tor the thinner strands or sections.

The wire runs trom an outsidesupply over a roller g to the hrst step ot the lower cone c thence throu h the iirst die in plate ige to the tir-st step of the upper cone c," then bach to the second step of cone c; then through the second die 1n plate f, and again through vessel e to the second step of cone c, and so on, until it has passed around all the steps ot the two cones and through all the dies in plate f. lt is then subjected to the action oli the second pair ot cones o2, c3 and the cooling vessel e and its associated die plate or wall ,'f, being led from the last step of cone c to the first step of cone 03 and then through plate f and vessel e to the iirst step ot conecz. 'lhis is repeated until, as betere, it has passed around all the steps oi the two cones and through all the dies in plate y, whereupon tti it is led around a pair of guide rollers m and 1c to a roller i around which it passes and trom which it is led to a winding drum h., rllhe roller is subjected to irictional engagement by a dat spring n attached toa bracket o, the purpose being to obtain an even winding ot the wire on drum il.

ln llig. 2, r indicates'the main drive shatt of the machine carryin the 'last and loose pulleys 3 and s with w ich a belt shifter t s@ Ais associated. `llhis device is moved in one direction by means ot a treadle p connected with it through a suitable lever system o, and in the other direction by rneans ot a spring er.

'lihe improved arrangement possesses the advantage ot aitfording a good general survey ot all the dies and wires; and the oblique position ot the drawing plates, which is re quired by the-oblique Aposition ot the wires, on is rnore convenient in case oit a wire rupture than a horizontal arrangement. Furthermore, while the iiow of the liquid trom one compartment to the next assists the coolino action, the passage oit the wire upward sa through the vessels causes it to carry some of the liquid along with it, so that the liquid remains in contact with the wire for a longer period than that consumed by the actual disposition ot the wire in the vessels. 'lhe loo principal advantage, however, is the tact that the speed ot travel of the wire can be 'reatly increased without danger oit the wire realring.

We claim as our invention :w-

A wire drawing bench, comprising a pair of rotary drawing elements around which the wire passes a plurality of times, one elenient being disposed above and to one side of the other to cause the Wire to travel in a llt direction oblique to the horizontal; a V- tot shaped vessel to contain a cooling liquid disieeeee which the wire passes from said dies; said A.partitions being disposed in stepped relation so es to cause the liquid to overflow from one compartment to the next, the compartments of larger sizes being reserved for the thicker strands of wire, and those of smaller sizes for the thinner strands.

-llntestimony whereof we aix 'our signatures.

LUlS GUSTAVE BRGUET. PAUL ALBERT BRG-UET.

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