US1473261A - Wire-straightening machine - Google Patents

Description

Nov. 6, 1923. 11,473,261].

L. THOMPSON WIRE STRAIGHTENING MACHINE Filed Feb. 2, 1921 2 Sheets-Sheet 1 IN VEN TOR.

A TTORNEYS NW. 6, 1923. TIA-73,2611 L. THOMPSON WIRE STRAIGHTENING MACHINE Filed Feb. 2, 1921 2 Sheets-Sheet 2 mqw INVEN TOR.

A TTORNEYS Patented Nov. 5, i823.

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To all whom it may concern."

Be it known that I, LAWRENCE THOMP- soN, a citizen of the United States, and a resident of Syracuse, in the county of Onona daga and State of New York, have invented a certain new and useful Wire-Straightening Machine, of which the following is a specification.

This invention relates to wire straightenio ing machines, and has for its object a particularly simple and efficient means whereby the wire can be started endwise through the machine by merely ap lying a pushing force to the wire without ringing the dies as in axial alinement with the wire passage of the body of the machine.

The invention consists in the novel fea-,

tures and in the combinations and constructions hereinafter set forth and claimed.

In describing this invention, reference is had to the accompanying drawings in which like characters designate corresponding parts in all the views.

Figure 1 is an elevation of a machine emas bodylng my invention, the base being broken away.

Fig. 2 is a thereof.

Figs. 3 and 4 are respectively end and side elevations of a guide block, Fig. 3, looking to the right in Fig. 4.

Fig. 5 is a fragmentary plan view of the right hand end portion of the machine shown in Fig. 1 shows one form of means for guiding the wire to the rolls at the discharge end of the machine.

Fig. 6 is a fragmentary sectional view taken on line 6-6, Fig. 1.

Fig. 7 is a view similar to Fig. 5 of another form ofmeans for guiding the wire to the rolls at the discharge end of the machine.

Fi 8 is an elevation of parts seen in Fig.

This machine comprises generally, a rotating body or mandrel 1 suitably supported in a frame 2, and having an axial wire passage 3, intermediate dies 4 and end dies 5 arranged diametrically or transversely of the body 1, each pair\of dies being spaced apart to form a wire hole, and guides between the pairs of dies. The dies 4, 5, are preferably held by screws 6* which thread into transverse passages 6 formed in the longitudinal sectional view i i, 5. -STEMGIEIT 8, 18m. Qertel H0. 4411,8458.

body or mandrel at regular intervals and intersectm the passage 3.

As wi be understood, the intermediate dies are arra ed with their passages out of almement with the passage 3 and the end dies 5, and alternate dies are arran ed with s lch pmages on opposite sides of t e axial line of the passage 3, that is, the pairs of intermediate dies 4: are arra ed with their passages r in staggered relation. The two end palrs of dies 5 are arran ed with their passages in alinement with the passages 3. The dies 4, 5, are of softer material than the wire to be operated on in order not to scratch or mar the wire during the straightening operation.

7 are guides interposed between the airs of dies 4:, 5, and located in recesses or c mbers 8 formed in the body 1 between the dies, these guides being blocks, and each block having an inclined face 9 formed with a ide groove 10 therein.

Each block extends the full width of the available space between two pairs of dies and each groove 10 is arranged in a plane radial with the axis of the wire passage 3, and is presented toward or fac s the pair of dies toward the front or entrance end of the machine, that is, the left end Fig. 1, and inclines from near the wire passage of one pair of dies 4 or 5 to near the entrance of the wire passage of the next pair of dies, so that the end of the wire when first being QED forced through the passage 3, after passing through the first set of dies 5 strikes the walls of the groove 10 of the first guide block and is deflected into the wire hole of the next pair of dies 41 and after passing through the hole of the second pair of dies 4 encounters the walls of the groove 10 of the second guide block and is deflected through the wire passage of the third pair of dles etc., until the wire is passed completely through the body 1.

There is one guide block in each chamber 8 and these guide blocks are arranged stagered, that is, the guide block in each chamer is arranged on the opposite side of the axis of the wire passage 3 from that on which the uide block in the next chamber 8 is locate As here shown, the guide blocks are formed with rotatable stems 11 which thread into holes 12 opening through the periphery The blocks 7 are of a harder metal than the wire in order that in pushing the wire through the body'l the end thereof will not dig [into and cling tothe blocks.

cans is also provided for guiding the wire between the rolls 14 and preventing it from displacement on the rolls 14. As will be understood by those skilled in the art, these rolls are grooved and formed double or multiple with grooves of different sizes, and such wheels are interchangeable with other rolls having grooves of other sizes. Oftentimes, the wire jumps off the. rolls or from one groove to another. The guiding means, which prevents such occurrences comprises deflectors arranged to form a converging guide toward the rolls 14. In Figs. 1, 5 and 6, these guides are shown as deflectors or blades 16 arranged between the end of the body or mandrel 1 and the rolls 14 and shiftable laterally in juxtaposition to either of the grooves of sald ro.ls 14 and also shiftable different distances apart. As here shown, the blades 16 depend from arms 17 formed with slots 18 for receiving the screws 18 threading in the frame 1. In Figs. 7 and 8 another form of guide is shown, comprising an angular bracket 20 secured to the frame by screws 21 passing through slots in the bracket and having bushings or eyes 23 carried by the angular part of the bracket.

In operation, the end of the wire is passed between the feed rolls 13 and the power applied to the rolls 13, 14, whereby the wire ispushed through the passage 3 and the first end dies 5 and guided by the inclined roove 10 of the first guide 7 to the first set 0 intermediate dies 4 and so on until the end of the wire passes between the rolls 14.

This wire straightening machine is particularly advantageous in that adjustment of the dies with the accompanying labor and loss of time, is eliminated thereby making the straightening operations of different runs of wires practically continuous, hence, greatly increasing the production of any one machine. It also eliminates the waste due to cuttin off the ends of the wire passed throug the machine before the dies are closed up in the machines heretofore in use; Furthermore, my improvement, that is. the guide blocks, can be applied to any standardmachines of this type.

I am aware that attempts have been made to accomplish substantially the same result as accompllshed by the use of the guide blocks in my machine, by forming the dies The rolls Hand 14 are con with flaring mouths but I have found that such machines are not operative and are concededly not operative except onthesmaller sizes of softest wire, as the ends of the wire stick in the flaring mouths of the dies, which dies must be of softer material than the wire; and furthermore, the dies must be of greater width than desirable for straightening the wire.

In my machine, the die blocks can be of minimum width and the guide blocks occuply practically all the space between the pairs of dies.

What I claim is:

ing a rotating body having an axial wire passage, spaced apart transverse passages and chambers intersecting the wire assage between the transverse passages, sai chambers being divided from the passages by separating walls, pairs of dies arranged in the transverse passages and having wire holes arranged staggered relatively to the axis of the wire passage of the body and a guide block arranged in each chamber and having an inclined face formed with a groove arranged in a plane radial with the axis of the wire passage of the body and presented toward the wire hole of the pair of dies at one side of the chamber and inclining toward the wire hole of the pair of dies at the opposite side of the chamber, substantially as and for the purpose described.

2. A wire straightening machine comprising a rotating body having an axial wire passage, spaced apart transverse passages and chambers intersecting the wire passage between the transverse passages, said chambers being divided from the passages by separating walls, pairs of dies arranged in the transverse passages and having wire holes arranged staggered relatively to the axis of the wire passage of the body and a guide block arranged in each chamber and having an inclined face formed with a groove arranged in a plane radial with the axis of the wire pamage of the body and presented toward the wire hole of the pair of dies at one side of the chamber and inclining toward the wire hole of the pair of dies at the opposite side of the chamber, said block extending from near the wire hole of one air of dies and terminating near the wire ole of the next pair of dies, the blocks located in adjacent chambers being arranged on opposite sides of the axis of the wire pawl e of the body, substantially as and for t e purpose specified.

3. A w1re straightening machine comprising a rotating body having axial wire passages, spaced apart transverse passages intersecting the wire passage, and chambers between the transverse passages, said chambers being divided from the passages b se arating walls, pairs of dies arranged m t e 1. A wire straightening machine compristransverse passages and having wire holes arranged staggered relatively to the axis of the wire passage of the body, and guide blocks arranged in the chambers and extending the full width thereof, each block hav-- ing an inclined face formed with a groove arran ed in a plane radial with the axis of the wire passage of the body and presented toward the wire hole of the pair of dies at one side of the chamber and inclining toward the wire hole of the pair of dies at the opposite side of the chamber, substantially as and for the purpose set forth.

4. A wire straightening machine comprising a rotating body having axial wire passages, spaced apart transverse passages intersecting the wire passage, and chambers between th transverse passages, said chambers being divided from the passages by separating walls, pairs of dies arranged in the transverse passages and having wire holes arranged staggered relatively to the axis of the wire passage of the body, and guide blocks arranged in the chambers and extending the full width thereof, and each having an inclined face formed with a groove arranged in a plane radial with the axis of the wire passage of the body and presented towardthe wire hole of the pair of dies at one side of the chamber and inclining toward the wire hole of the pair of dies at the opposite side of the chamber, said block extending from near the wire hole of one pair of dies and terminating near the wire hole of the next pair of dies, the blocks located in adjacent chambers being arranged on opposite sides of the axis of the wire passage of the body, and means for forcing the wire through the body and the dies and past the guide blocks, substantially as and for the purpose described.

5. In a wire straightening machine, a re tating mandrel having straightening dies therein, rolls at the discharge end of the mandrel and spaced therefrom for receiving the wire. and means adjustably mounted between such end of the mandrel and the rolls for guiding the wire to the rolls, substantially as and for the purpose described.

6. In a wire straightening machine, a rotating mandrel having straightening dies therein. rolls at the discharge end of the mandrel and spaced therefrom for receiving the wire, and means adjustably mounted between such end of the mandrel and the rolls for guiding the wire to the rolls, said means comprising a part confining a passage converging toward the rolls, substantially as and for the purpose specified.

7. In a wire straightening machine, a rotating mandrel having straightening dies therein, rolls at the discharge end of the mandrel for receiving the wire, and means I between such end of the mandrel and the rolls for guiding the wire to the rolls, said means comprising a pair of blades inclined along their lengthwise dimensions to form a passage converging toward the rolls, substantial 1y as and for the purpose set forth.

8. A wire traightening machine comprising a rotating mandrel, wire straightening dies arranged in the mandrel in spaced relation, a guide arranged in the mandrel be tween said'dies, an adjusting screw having its inner end loosely engaged in a recess in said guide and having a peripheral groove, and a pin located in said groove and having its ends held by said guide.

In testimony whereof, I have hereunto signed my name, at Syracuse, in the county of Onondaga, and State of New York, this 15th day of January, 1921.

LAWRENCE THOMPSON.

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