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Dec. 3, 1946.
'
w. E; Km
2,412,049
STOCK FEEDING APPARATUS FOR DRAWING MACHINES
Filed lay 30, 1942
4 Sheets-Sheet 1
.47
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Smmvmn.
‘Mr/lace f. Kerr:
BY
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Di» 3, 1946.‘
W. E; KERR
STOCK FEEDING APPARATUS FOR DRAWING IACHIHES
and lay 30, 1942
2,412,049
4 Sheets-Shee‘t 2
mmvron.
[Ya/lace i’. Kerr: .
Dec- 3, 1946.
r
w. EQKERR '
2,412,049
STOCK FEEDING APPARATUS FOR DRAWING MACHINES ’
.Filed may 30, 1942
vF'IQ O
4 Sheets-Sheet 3
' J0
60
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- IN VEN TOR.
l’VW/ace i Kern
Dec, 3, 1946.
w; E. KERR
‘
2,412,049 v
STOCK FEEDING APPARATUS FOR DRAWING MACHINESv
(I!
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Lt.
INVENTOR
[Jul/ace '5 Mom _
WTAM
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Patented Dec. 3, 194sv
_ _ $2,412,049
UNITED STAT-ES (‘PATENT orrlcn
' 2,412,049
STOCK FEEDING msns'rus son
nnswmu use
I
Wallace E. Kerr, Youngstown, Ohio 7
Application May 30, 1942,
No. mares
ion. 2M3)
86 Claims.
.
This invention relates to stock feeding and
straightening apparatus particularly for metal
'
a
,
its happening if it does occur, the’ eifective sup
port for the coil on the reel is inclined so that
the convolutions of the coil will tend to compact
drawing machines and more specifically to the '
design, construction, assembly, and interrelation
against the ?ange aforesaid and the reel support
of devices having utility in the supplying of stock
to the die or dies of a metal drawing machine.
The invention also relates to an improved combi
nation of devices for uncoiling, straightening, and
shearing stock being furnished a drawbench,
is made movable upon the attainment of an _ex-@
cessive tension in the stock being payed out so
that such movement may be availed of to inter
rupt the drawing‘ operation. Thirdly, the heavy
and springy nature of the stock‘ renders the
. which devices are in‘ line immediately outward of 10 threading through of a leading end thereof very .
' dii?cult and to facilitate this operation readily
the drawbench die or dies, whereby the operation
oi.’ the drawbench is materially facilitated and its
controlled means is provided tomove the reel to
e?iciency increas
ward and away from the die.
_
This mechanism.
enables the operator. to guide the previously
~_.
The primary objebt of the invention is the pro
vision of an'improved assembly for uncoiling and
straightened and reduced end of the stock into
straightening the stock being supplied to the die
the die while the entire coil and consequently the
or dies of a metal drawing machine and the im
provements seekto provide a more veillcient ar
end is advancing toward the die._
, _
,
Another object of the invention is the provision
rangement for loading and supporting the coils
' of an improved stock straightener which may be
of stock on the uncoiling reel or reels employed, 20 advantageously employed intermediate the un
for movably supporting the reel or reels whereby
the threading through of a leading stock end may
coiling reel .and the die in a drawing assembly.
Because of the diiliculty of handling the heavy
coils and bending the stock of the coil it is im-‘
_ be materially’ facilitated and a simple and effi
cient mechanism may be employed to interrupt
the drawing operation if the stock becomes en
practical to thread heavy stock throughv a
25 straightener as it issues from the coil and before .
it enters the die. This problem is overcome by
thepresent invention by employing a straightener
A further object or the invention is the provi- ’
of improved design which is so constructed that
sion of an improved stock uncoiling reel and of
the opposing banks of straightening ‘rolls are
an improved movable support for the reel, which 30 readily moved apart whereby a previously
assembly is of particular utility in'the furnishing
straightened end portion of the stock may be in
of stock to a metal drawing machine. It is now
serted broadside between the banks and the banks
. common practice to transfer stock to be drawn
quickly closed to straightening positions.
in coil form even though such stock be of the ,or- i
A still further ‘object of the invention is the
der of 1" in diameter or equivalent area in other 35 incorporation of a shear immediately ahead of
section. The preparing, handling and feeding .of
the die or dies of the drawing machine whereby
this coiled stock to the die or drawbench presents
the stock may be readily severed to avoid the
tangled on the reel or reels, and for positioning ‘
the stock in the straightener.
.
substantial dimc'ulties which are overcome by the
entry into the die or dies of defective or dam- '
methods and devices of the present invention,
aging stock. The shear is so constructed and
First, vthe'coils are of great weight and must be 40 mounted that bendingof the stock is avoided
carefully handled to avoid damage tothe stock
and in case of a multiple draw machine the shear
or to the apparatus. In accordance with the pre
is operative to sever either stock length without .
ferred embodiment of the invention the (uncoiling
V disturbing the other length.
reel is mounted for rotation about'an axis which
The above and other speci?c objects and ad
is slightly inclined so that the heavy coil may 45 vantages of the invention will‘become apparent
slide slowly into engagement with a ?ange on
upon consideration of the following detailed spec
the lowermost end of the reel. The reel drum is
i?cation and the accompanying drawings where
elongated to enable a succeeding coil to be placed
in there is speci?cally disclosed a‘ ‘preferred em
on the outer end thereof while a coil resting
bodiment of the "invention.
against the ?ange is being payed out. Secondly,
50
the individual convolutions of the coils are in
themselves heavy but springy and during the
lnthe drawings:
>
-
Figure 1 is a plan view of a metal drawing '
i
uncoiling operation the convolutions have a
' tendency to open up and become ensnarled. To
avoid this occurrence and the consequences of 55
assembly constructed in accordance with the
principles of the invention, the view showing in
schematic outline a draw motor control which is
part of the present invention;
2,412,040'
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a
shaft 24 is a member having a hub or drum por-v
v Figure 2 is a side view of a portion of the ap
paratus of Figure 1;
.
Figure 3 is a side view of a portion .of the un
tion 23 and a radially extending ?ange 23 at the
inner orarm end of the drum 23. By referring a
coiling assembly of the apparatus of Figure 1;
to Figures 3 and-4 it will be observed that the
Figure 4 is an end view.'partly in section, of, 5 arm 23 is providedwith a lower side surface 21
which is substantially in general continuation of
the apparatus of Figure 3;
Figure 5 is a section taken along the line V-_-V _‘ the coil engaging surface of the ?ange, 23 for a
purpose to be later described. To-the outer end
of Figure 4;
1
v
‘of shaft 24 is secureda ?xed drum 23 in which
Figure 6 is a plan view, on an enlarged scale,
10 is pivotally mounted‘the coil retaining arms 23.
‘of the reel moving apparatus 'of the invention;
Figures '7, 3 and 9 are side,-plan, and end views, - Arms 23 are in the form of bell-crank-levers, the
respectively, of the stock straightening ‘machine
of the invention, which machine is utilized in the
- outer ends of the short legs of which are pivotaily '
connected to a slideable member 33 having a
central threaded bore .to receive a threaded sleeve
Figure 10 is a section through the machine of 15 3i. .The sleeve 3i is rotatably mounted on the
' assembly of Figures 1 and 2:v
reduced end ‘of shaft 24, as shown, but is re
strained against outward axial movement by the
Figure '7, the'view being taken along the line
X-X of Figure 7 ; and
v
7
nut 32. A handwheel 33 is. secured to sleeve 3i
Figures 11, 12 and 13 aretside, plan. and end
to move the arms 23 radially inward and out
views, respectively, of'the shear and supporting
means therefor utilized in the assembly of Fig 20
Carriage 22 is arranged to be moved toward
ures 1 and 2.
_
I
and away from the die or dies of the‘drawin'g
The apparatus speci?cally disclosed is of par
machine by the {?uid pressure operated cylinder .
ticular utility in the drawing of steel rods, hexa
34, preferably ,1 hydraulic, which is slideably
gons, squares, and other sections‘ and this stock
.ward.
'
.
may have a diameter of the order of 1" if round 25 mounted in guides 33 secured to the upper flange
‘ and an equivalent area if ‘of other section. This
of one of the beams 20. The piston in cylinder“
stock is transferred to the drawing plant in coil
has a rod 33 which is connected to block 31 se
form and as it is often of alloy steel, the coils .
cured to carriage 22 through the pin 33- and
block 33. A conduit 40 is provided for each end
of cylinder 34 and a four-way valve, not shown,
' \ are still, springy, and generally dimcult to han
dle. ‘- The coils are suspended on a suitable trol
ley hoist, not shown, and while so suspended the
outer ends thereof are inserted in a suitable
straightener, not shown, to straighten the lead
ing end portions of the stock, and-the ends are
then inserted in a turning pointer to reduce the _ '
is provided to control the ?ow of ?uid into and
out of the ‘conduits'and to lock’ the ?uid in the
cylinder regardless of the positior'r- of the piston
therein.‘
-
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,
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The cylinder 34 is slideably mounted as stated
and extending outwardly fromthe end thereof op
leading few inches of the stock pieces for inser
posite the rod end is a tube 4i having an integral
tion through the drawing die or dies. After this
inwardly directed ?ange 42 at its outer end}
preliminary preparation the coils are transferred
Tube 4| is rigidly connected to cylinder 34 and,
to the apparatus of the present invention and
40. is arranged to house a coil spring 43. The latter
handled in the manner to be described below.
has one of its ends abutting the ?ange 42 while
In the drawings, reference numeral i0 desig
its other end engages a head 44 of a bolt 45 the
nates the bed of a drawbench on which travels
outer end of which is adiustably anchored in a
the tong buggy It, which is arranged to be moved
outwardly by the chain I2. The latter‘ is, in ac
block 43 secured to thebeam 23.
.
Normally, the spring 43 remains in its ex
cordance with usual practice, vadapted to be
panded condition,‘ as'shown in Figure 6, and the
driven by motor I3 through suitable reduction
cylinder 34 remains in the same position and so
gearing l4. At the end of bench I2 opposite the
is operable to move the carriage 22 toward or
motor I3 is a die holder is provided with two
away from the die or dies of the drawing ma
vertically spaced drawing dies. ' The tongs on
buggy I I are operative to simultaneously grip and 50 chine. Regardless of whether the rod 33 is fully
extended or whether it is locked in otherposition
draw the two vertically spaced stock pieces so
by closing off’ both conduits 43' the tension re- .
that multiple drawing may be effected. Posi-l
quired to uncoil the stock on the reel I3 is op- tioned adjacent .the entering end of the die block
. posed by the spring 43. If the coil should become
I2 is a shear assembly i3 which is shown in de
tail in Figures 11, 12 and 13 and which will be 55 entangled on the ‘reel serious damage would re
sult due to thegreat force exerted by the draw
fully described below. Outwardly of the shear
i3 and'aligned with respect to the lines of draw
' motor unless the motor were stopped and to pro
vide for this safety feature I employ a switch
which is operative upon the application of exces
Figures 7 through 10. Outwardly of the straight
ener I1 is the uncoiling assembly which, .in the 6o sive tension to the reel to stop the draw motor.
This switch may be either made responsive to
speci?cally disclosed embodiment includes two
the presence of excessive pressure of ‘the ?uid in
reels l3 and I! each mounted on a support mov
the rod end of the cylinder Or to the collapsing of
able in guides 20 toward and away from the die
is a straightener I ‘I which is shown in detail in
block‘ it and other elements of the assembly.
_
spring 43 as shown in the drawings. This switch.
Referring now'to Figures 3 through 6 each ofv 65 designated by reference numeral 41 is provided
' with an operator‘ 43 arranged to be engaged by
the guides 23 consists of a ?anged beam and rest
an arm 43 extending outwardly of the'tube 4|. ' .
ing on the ?anges thereof are the wheels 2|, four
Switch 41 is normally closed and is in series with
of which support a carriage 22. The carriage 22
‘the coil 43 of a relay, the main contactors of
supports the reel is by means ‘of an arm 23 which
extends upwardlyand‘ outwardly from one side 70 which control the ?ow of current to the motor 7
of the carriage. ' Reel i3 is immediately supported
l3 from the line L. Coil 43 is energized from a
on a: shaft 24 extending outwardly and upwardly , source CL. The relay aforesaid opens immedi
ately upon interruption of the ‘coil energizing
from the upper end of arm 23 and consists of two
circuit and by referring to Figure 1 it should be
principal assemblies now to be described. Ro
tatably mounted on the inner or arm end of 75 at once apparent that as soon as the reel."
2,412,049 ‘
5
moves to compress spring 43 the motor [8 will be
stopped to interrupt the drawing movement of
the stock. In practice, the motor I8 may be pro
vided with a magnetic brake to increase its de
ceieration. Upon removal of the obstruction,‘
switch 41 and the relay reclose and operation of
the drawing machine may continue.
ably linked with the upper yoke is while the a
lower lever 14 is adjustably linked with the lower
yoke 88, as shown in Figure 7. It should be ap
parent'that upon the actuationof cylinder 88 to
move the yoke 02 inwardly, the rolls 56 will be
moved upwardly and the upper side guide roll 12
will be swung out of the way in a counterclock
wise direction as viewed in Figure 7 and in this
opened condition of the rolls a length of stock
spects to the reel l8. and its carriage with the
exception of the arm 28 which, of course, is 10 may be readily inserted between the rolls in a
Reel [8 and its carriage is identical in all re
higher for the reel it than it is for the reel I8,
sidewise direction and upon actuation of cylinder
64 to move the yoke outwardly all the rolls of the
upper pass will be moved into operative guiding
the assembly of Figures 1 and 2 is arranged to
and straightening positions. The lower rolls 86
furnish stock to the lower die in holder I! while
the reel I 8 furnishes stock to the upper die. it 15 and the lower of the side guide rolls 12 may be
opened and closed in the same manner to en- being understood that the stock is pulled off the
able a stock length to be moved sideways into the
tops of the coils which are on the drum 2!.
lower straightening pass. The adjustable con
Referring to. Figures '7 through 10 of the draw
nection 88 controls the operative setting of the
ings the improved stock straightener of the in
vention comprises a housing or frame 88 which 20 rolls 88 and ‘I2.
Referring now to Figures 11, 12 and 13,. the‘
is slideable in guides SI‘ for sidewise movement
shear
i8 comprises the two arms "and 18 hav
with respect to the line"v of draw. A screw 52
ing the shearing jaws ‘l1. and 18, respectively,
journaled in_ a ?xed block 53 and held against
and these two members are pivotally connected
axial movement with respect thereto is provided
to move the straightener and such movement 25 by the pin 18. A supporting‘lever 88 pivotally
mounted at 8| has an outer windowed portion
may be resorted to either to align the passes of
82 to receive the upper portions of the arms 18
the straightener with the dies or to withdraw the
and ‘It and pin 19 extends through theside walls
straightener out of the path of travel of the stock
of the portion 82. Arms 15 and 18 are arranged
in the event that the use of the straightener is
as indicated in Figures 2 and 3. The reel I! in
not desired. The rolls of the straightener, are 30 to be moved toward or away from each’ other by
an air cylinder 83 and another’air or hydraulic
overhung, being carried by the ends of shafts
anti-frictionally journaled in the frame 88. Twov . cylinder ‘84. is provided to rock arm 88 and raise
or lower the sheer. Pin 8| is anchored in the
vertically spaced straightening passes are pro
bracket 88 which .in turn is secured to' a base 86
vided-the lower rolls 54 of the upper pass and
fixed in relation to the operative elements of
the upper rolls 55 of the lower pass'being ar
ranged in nested or alternated relation as shown '
the drawing machine.
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Normally the shear is in lower position as it is
in Figure 7 and adapted to rotate about ?xed axes
shown in Figure 11 but when it is desired to em
located centrally of the machine. The shafts of
ploy the same to sever a length of stock extend
the upper rolls it of the upper pass are iournaled
in blocks 51 which are slideable in vertical guide 40 ing from a die of the drawing machine, .the cylin
‘der 88 is actuated and the shear moved upwardly
ways and constantly urged to upper positions by
to position the shearing dies 81 on opposite sides
the springs 88- acting through screws 88 which
of the stock length to be cut. Pin 8! is so posi
have connection with blocks 81. To hold the
tioned that when the shear is raised to operative
blocks 81 down and keep‘ the rolls 88 in their
proper straightening positions cam blocks 88 are ~ position the dies 81 will be centered on opposite
sides of the stock and it should be further ob
employed on opposite sides of the machine to en
served that by reason of the pivotal suspension of
gage inclined or cam surfaces on the blocks ‘1.
the shear 18 the stock will be severed without
Blocks 68 are adjustably secured to screws 8! and
bending. Thus the dies 81 maybe said to be
a yoke 82 bridges the outer ends of the screws
8|. Yoke 62 is adiustably connected to the pis 50 self-centering with respect to the stock as the
stock‘ is being severed. In the event that it is
ton‘rod 63 of a ?uid pressure operated cylinder
desired to sever the upper length of stock, the .
68 and it should be apparent that actuation of
lower length‘ is received in the space 88 between
cylinder 88 is operative to quickly move the rolls‘
the jaws ‘l1 and ‘I8.
"
*
58 either upwardly or downwardly as the case
In practice, control valves (notshown) for ‘
may be. An adjustable interconnection .88 de
the reel cylinders 88, the cylinders of the straight
termines the ?nal operative setting of the rolls 88.
ener' l1, and the cylinders of the shear are po~
The lower rolls 66 of the lower pass are car
sitioned adjacent the die holder 18 and in setting
ried by shafts which are Journaled in vertically
the machine up for operation, a coil of stock
slideable blocks 81 and the cam blocks 88 are
again provided to move the blocks 81 upwardly. 60 whose end has been previously straightened and
turned as explained above is placed in position on
The lower rolls 88 are movable downwardly by
one of the reels adjacent the flange 28. It should
gravity and as in the case of the upper roll set
be observed that the slight slope (approximately
it the lower roll set 86 is arranged to be quickly
15° in practice) of the reel drum allows the heavy
moved by a cylinder 81' acting through adjusta
ble interconnection 88, yoke 88 and rod 18, one 65 coil to slide slowly into engagement with the
?ange 28 .thereby avoiding any damage which
of which latter is positioned on either‘side of the
may be caused by a heavy impact. .Also the up
machine.
wardly and outwardly extending direction or the
In apparatus of the above nature entering
drum facilitates the transfer of the coils from
side guide rolls are required and the inner two
of these are designated ‘by reference numeral 1 l 70 the hoist hook to the reel as will be well under
stood. Since the weight of the coil is suspended
and the outer two by reference numeral 12. The.
principally from the top of the drum surface 28,
former are rotatably mounted on a fixed shaft
the inclination of such surface compacts the con
while the outer two are rotatably mounted on
volutions or the coils against the ?ange “and
shafts which are carried by the pivotally mounted
levers ‘I8 and 14. The upper lever 13 is adjust 75 thereby tends to keep the coils in proper condi
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tion during the uncoiling thereof." The inclined
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s
’ the axis of" rotation of said reel, the center of said
surface 21 which is substantially a continuation of
drum being spaced vertically from said line of
the coil engaging surface of the ?ange 26 further
- draw.
adds in preventing entanglement of the convolu;
2. Apparatus according to claim 1 further char
acterized by the inclusion of a second die vertically
spaced ,with respect to said ?rst mentioned die
whereby two lengths. of stock may be simultaneously. drawn, a second reel positioned beyond said
?rst mentioned reel and having the ?ange and
tions of the coils.
When a coil is positioned on- one of the drums
15 the straightened leading end portion‘ thereof
may be inserted broadside into the straightener
H as explained above and the reduced end there
of may be manually guided through the die while 10 inclined axis as de?ned for said ?rst mentioned
the cylinder 34 connected with the particular reel
reel, said second mentioned reel being also
on which the coil is positioned is' actuated to
adapted to receive a coil of stock and being posi
move the reel and coil toward the die. In. this
tioned on a higher level than said ?rst mentioned
manner the end of the stock is threaded through
the die so that it may be grasped by the tongs
or bits on ‘the buggy ll.
' reel whereby the stock coming of! the coil on
15.
When the reel has
said second mentionedreel will pass' over the coil
positioned on said ?rst mentioned reel.
' .
reached its proper advanced position, the ?uidis
' 3. Apparatus for supplying stock to a metal
locked in ‘the end of cylinder 34 as explained ' drawing machine comprising a reel mounted for '.
above so that during the drawing operation the
rotation about an inclined axis lying in a plane
uncoiling tension is opposed by the spring 43 20 substantially normal to the line of draw, said
which upon ?exing stops the operation of the . reel having an inner coil receiving drum, and an
draw motor. It will be obvious upon ‘inspection
outercoil receiving drum on which‘ may be stored
of Figures '3 and .4‘ and noting the elongated na
a coil of stock pending the paying-out of the ?rst
ture. of the carriage 22 as well as'the nesting
mentioned coil, said drums providing a substan
arrangement of the wheels 2| within the ?anges 25 tially uninterrupted coil supporting surface to
of the guides 20 that the reel supporting arms
slideably support the coils during transfer from
'23 will be e?'ectively restrained from-forward tilt
_ storage position to paying-out position.
ihg movement during the uncoiling of the stock
4. Apparatus according to'claim 3 further in
‘ held on the reels.
.
'
cluding means to retain a coil of stock on said
. While the coils on the drums 25 are being 30 storage drum, and means to retract said retain
uncolled succeeding coils may be positioned. on
ing means whereby said coil may he slid down onto
the drums 28, being restrained by the arms I!
said revolvabie drum.
'
. .
which upon rotation\, of wheels 33 are retracted
5. In combination with metal drawing appa
to allow the coils to slide onto drums 26.. It
ratus havinga die de?ning the line of draw. means
should be observed that either drum 2' may be. 35 to feed coil stock to said dieand apparatus com
loaded while the coil\on the other drum is being . prising a reel positioned outwardly of said die
uncolled.
‘
and mounted for rotation about an axis lying in a
It should nowbe apparent that I have provided
improved machines‘ and. a novelarrangement of
machines for supplying coiled stock-to a- draw
bench which'_fpll_y accomplishes the objects ini
"plane substantially normal to the line of draw,
‘said reel adapted to receive a coil of stock and
40 comprising a drum and an adjacent annularv
?ange at one end thereof, said ?ange extending
tially set out. , By the use of the invention the
normal to the axis of rotation of said i-eel, the
top coil supporting surface of said drum being in
coiled stool; may befed to the drawbench in a
more'emcient-and orderly manner than has here
tofore been possible. The rate of production of
the drawbench may be materially increased and
the resultant productis of a higher and more
uniform quality. The drawbench may be made
substantially automatic in operation, an auto- ‘
matic shear It being provided to sever the drawn
stock‘upon, the completion of a draw.
‘
The above speci?cally described embodiment
of the invention should be considered as illustra
tive only as obviously many changes may be made
therein without departing from the spirit or scope -
of the invention. For example, other means than
the means speci?cally described may be employed
to separate the banks of rolls of the ‘straightener
and variations in the design and construction .
clined downwardly toward said ?ange wherebyv
the coil will tend to remain. in position against
'
said ?ange.
6. In combination with metal drawing appa
ratus having a die de?ning the line of draw,
means to supply stock to said die and apparatus
comprising an uncoiling drum and a storage
drum mounted on a common axis which is sub
stantially normal to the line of draw, means at
one end of said uncoiling drum to engage the side
'edge of a coil of. stock, the top coil supporting
surfaces of said drums being contiguous and in
clined away from said ,means whereby a coil of
stock may ‘slide from said storage drum down
onto said uncoiling drum without, undue shock
or impact against said means.
,
.
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of the reels may be made while yet retaining the 60
7. In combination with metal drawing appa
bene?ts of the teachings of the present invention.
ratus having ‘a die defining the line of draw.
Reference should therefore be had to the ap-'
means to supply coiled stock to said die and appa
pended claims in determining the scope of the
ratus comprising a coil receiving drum and an
invention.
adjacent annular flange, the coil supporting sur
What I claim is:
face of said drum being inclined downwardly to- ‘
i. In combination with metal drawing appa
ward said ?ange, said ?ange lying in an inclined
ratus having-a die de?ning the line of draw, means
plane whereby the convolutions of the coil on said
to supplycoiled stock to said die and apparatus
drum tend to compact toward said ?ange thus
comprising a.- reel positioned outwardly of said
tending to maintain the alignment of the strand
die and mounted'for rotation about an inclined 70 being paid on’ the coil with said line of draw.
axis lying in a plane substantially normal to said
8. Apparatus according to claim 7 further in
line of draw, said reel being adapted to receive
cluding an inclined surface below said ?ange and
a coil of stock and comprising a drum and an
substantially in general continuation of the coil
adia'centannular ?ange at the lowermost end
engaging surface thereof against which the con
’ of said drum, said ?ange extending normal to
volutions .oi' the coil tend to compact.
2,412,049
9
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9. Apparatus for supplying stock to a drawing
machine having a die de?ning the line of draw
and power operated means to, draw the stock‘
through said die comprising in combination a
I . 10
forming a straightening pass for the other length,
one bank of each pass-forming pair of banls
being disposed intermediate the passes, the rolls
of one intermediate bank being alternated with '
support, a reel on said support adapted to receive 5 ,‘the rolls of the other of said intermediate banks.
I 15. Apparatus for supplying rod stock to a
a coil of stock, said support being mounted for.
{drawing machine having a die ‘and means to draw
movement toward and away irom said die in a
the stock through said die comprising in combi
direction substantially parallel with said line of
nation a reel adapted to receive a coil of stock, a
draw, yieldable means to oppose movement of
said support toward said die as results from ten 10 straightener arranged to condition the stock as it
leaves the reel, and a shear intermediate the reel
sion in the stock intermediate the' die and coil,
and die for severing the stock as desired, the pass
means to adjust the resistance to movement ef
through said straightener being in substantial
fected by said yieldable means, and means re
‘ alignment with the line of draw and with the line
sponsive to a predetermined extent of yielding of
said yielding means to interrupt the ?ow of power 15 of stock pay-off from said reel, said shear being
quickly retractable from said alignment of draw
to said power operated means, and means to move
for
the broadside movement of said stock.
said support toward said die.
.16. Apparatus for supplying stock to a drawing
10. Apparatus for supplying stock to a drawing _
machine having a pair of dies and means to draw
machine having a die de?ning the line of draw
and an electric motor for drawing said stock 20 the stock through said dies comprising in combi
nation a pair of reels each adapted to receive a
through said die comprising in combination a,
coil of stock, and a shear intermediate said reels
support movable toward the entering end of said
and dies, said shear being operative to sever
die in a direction substantially parallel with said
.either one or both of the lengths of stock entering
line of draw, a reel for a coil of stock on said sup
port, yielding means opposing movement of said 25 . said dies.
17. In combination with a drawing machine
support toward said die, means responsive to a
having a drawing die de?ning the line of draw, a
predetermined extent of yielding of said yielding
shear positioned at the stock entering end of said
means to interrupt the flow of current to said mo
die, and means mounting said shear for move
tor, said responsive means being operative to ef
fect resumption of said ?ow. of current upon the 30 ment toward and away from the line of draw
,whereby the shearing dies thereof may be
diminishing of the extent of said yielding.
‘ brought into operative positions on either side
11. Apparatus for supplying rod stock to a
of the length of stock to be cut,'said mounting
drawing’ machine having two vertically spaced
means aifording free self-centering movement
drawing dies and means to draw the stock
through said dies ‘comprising in combination a 35 of said dies whereby the stock may be severed
without bending.
pair of reels adapted to pay of: stock from coils
18. In combination with a drawing machine
positioned thereon, said reels being spaced along
having a pair of dies for simultaneously drawing
a line extending outwardly of said dies and sub
two lengths of stock in spaced parallel relation,
stantially parallel with the lines of draw ‘and po
40 a shear positioned at the entering end of said die,
sitioned in echelon as to elevation.
, _
said shear being inovably mounted for movement
12. Apparatus for supplying rod stock to a
toward and away from the lines of draw, the path
drawing machine having a die de?ning the line
of draw and means to draw the stock through - of travel of said shear being such that the shear
may be moved into operative position to sever
said die comprising in combination a reel adapted
either one of the lengths of stock projecting from
to receive a-coil of stock, means to move said reel
the dies and when so positioned the stock engag
toward said die, a stock straightener intermediate
ing ‘portions of the shear are centered with re
said reel and die, saidstraightener having a bank
spect to the particular piece of stock to be
of straightening rolls movable away from and
toward a cooperating bank of rolls, and means to
19. Apparatus for straightening stock compris
move said straightener rolls relative to said bank 50
ing
a frame, a bank of straightening rolls Jour
of cooperating rolls whereby a stock end project- .
naled in said frame, a second bank of straighten
ing from said coil may be inserted broadside into .
sheared.
working position in said straightener.
,
‘
_
I
'
ing rolls journaled in said frame, means to‘ quick
' ly move said banks of rolls away from and ‘toward
drawing machine having a die and means to draw 55 each other whereby a length of stock may be in
13. Apparatus for supplying rod stock to a.
thestock through said die comprising in combi
serted broadside into working position in said
apparatus, a stock entering guide, and means '
nation a reeladapted to receive a coil of stock
‘ broadside, a straightener intermediate said reelv 4 ,movably mounting said ‘guide for movement out
of the path of the broadside movement of said
and die, the pass through said straightener being
aligned with the line of draw and with the linev 60 stock when said banks of straightening rolls are
moved'apart.
_
of stock pay-ctr from said reel, said .straightener
20. In apparatus for feeding coiled sti? rod
having a bank of straightening rolls mounted for
movement toward and away from‘ a cooperating '- stock to a metal working machine having a metal
working device and means positioned therebeyond '
bank of rolls, and means for moving said
straightening rolls toward and away from said co 65 to draw the stock therethrough comprising in
combination a track extending forwardlyof said
operating rolls whereby a pre-straightened pro
device along a path generally parallel with the
jecting end portion of the stock in said coil may
path of movement of stock through said device, a
be inserted broadside into working position in
carriage having supporting wheels mounted on
said straightener while the coil proper is loaded
70 said track, said track-‘having means to restrain
onto said reel.
I
14. Apparatus for simultaneously, straightening . forward tilting movement of said carriage, a toe].
on said carriage adapted to-hold a coil 0! stock
two lengths of stock comprising a frame having
while an unwound end portion thereof is inserted
four banks of straightening rolls joumaled there
in said device and while said means draws stock
in, two of the banks forming a straightening pass
for one length and the other two of the banks 75. (min said coil, and power operated means to move
2,412,049
It
12
said carriage toward/and away from said device to
facilitate the threading through said device of
on said shaft, said real comprising a drum por
the end of a stock portion extending outwardly
from the coil held on said reel, said reel being op
erative to retain said coil in unwinding position
on said support during the drawing of said stock
regardless of conditions in said coil tending to,
portion.
prevent the unwinding of the stock therefrom.
tion and a ?ange on the lower end of said drum
.
28. Apparatus for supplying stock from a coil
thereof comprising means rotatably supporting
said coil of stock, said means comprising a down
~wa'rdly inclined surface engaging the inner
_
periphery of said coil and an annular guiding
surface at the lower end of said inclined surface
to engage a side edge of said coil, the arrange
21. Apparatus according to claim 20 further in
cluding means to retain said carriage in adjusted
position with respect to said device, said retaining ‘
ment being suchthat the individual convolutions
means being operative to oppose movement of
of the coil tend to compact against said guiding
said carriage in a direction toward said device,
surface whereby the position and alignment of
means to interrupt said stock drawing means, and
the strand paid off of said coil tends to remain
means responsive to a predetermined force being 15 fixed, said supporting surface being adapted to‘
applied to said carriage by said stock in a direc
slideably receive a coiled length of stock over
tion tending to‘ move said carriage toward said '
theend thereof opposite said guiding surface.
device to actuate said means to interrupt.
~29. Apparatus according to claim 28 further
22. Apparatus according to claim 20 further
characterized in that said guiding surface is in
characterized in that said power means comprises 20 clined away from its point of junction with said
a motor having a member slideably mounted with
supporting surface.
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'
respect to said track for movement parallel there
30. A shear adapted to sever either one of a‘
with and a second member adapted to be moved
pair of stock lengths spaced relatively to and
relative to said first mentioned member and con
generally parallel with each other comprising
nected to said carriage, and resilient means op 25 in combination a pair of stock severing Jaws.
posing sliding movement of said first mentioned
means to move said Jaws toward each other,
member in a direction toward said device.
~
means to move-said Jaws in a direction substan
23. Apparatus according to claim 20 further
tiallyicoincident with a line passing through and
characterized in that said reel comprises acoil
normal to said lengths whereby said jaws may
receiving drum and an adjacent ?ange, the coil 80 engage either one .or .the other of said lengths,
supporting surface of said drum being inclined,
said Jaws having relieved portions to receive one '
downwardly toward said ?ange whereby the con- i
volutions of the coil of said drum tend to com
of said lengths while said laws‘ are severing the
other of said lengths.
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pact against said ?ange thus tending to main
q 31. A shear for severing a horizontally extend
tain a predetermined alignment of the stock 35 ing length of stock comprising a pair of jaws
strand with respect to said path of movement as ' each'having a cutter portion adapted to engage
the same is paid off of the coil.
.
opposite sides of said length, jaw closing means,
24. Apparatus according to claim 20 furthe
and means pivotally supporting said jaws and
‘ including a stock straightener interposed between
said jaw closing means at a point above the cen
said reel and said device, and power operated v40 ter of mass thereof vertically spaced from said
>
means to open the pass through said straightener ,
portions, the pivotal axis of support being sub
whereby a stock strand may be inserted therein .
in a broadside manner.
‘ ,
.
stantially parallel to said length.
32. Apparatus according to claim 31 further
_
25. Apparatus according to claim 20 further
characterized in that said v:Iaws are pivotally con
characterized in that said reel comprises a drum 45 nected for movement toward and away from each‘
having a ?ange at one end thereof, the coil sup
other, and a common pin for interconnecting
porting surface of said drum being inclined down
saidsiaws and for supporting both of said jaws. “
wardly toward said ?ange, a stock straightener
33; Apparatus for supplying sti?.’ rod stockvto
intermediate said reel and device, and means to
a drawing machine having a die defining the
open the pass through said straightener from the
line of draw comprising in combination guides
side coinciding with an open side of said reel '
whereby a pre-straightened end portion of a
length of coiled stock may be inserted broadside .
extending parallel with said line of draw, a sup
‘ port mounted in said guides for movement toward
and away from said die, said guides being opera
tive to restrain tilting movement of said support
55 in a direction toward said die, a reel mounted on
26. Stock. feeding apparatus for a drawbench
said support for holding a‘ coil of stock while .an
and the like comprising in combination a pay-.
unwound end portion thereof is inserted in the
of! reel having a drum and an upstanding ?ange
die and while the drawing machine draws the re-. ‘
at one end of the drum, the coil supporting sur
maining portion of the stock from said coil, and a
face of said drum being inclined downwardly 60 controllable means for moving said support to
toward said ?ange, a stock straightener inter
facilitate the threading of the stock and through
into said straightener while the coil proper is
being loaded onto said reel.
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mediate said reel and drawbench and the like, and means ‘to open the pass through said
straightener from the side coincident with an
open side of said reel whereby a pre-straightened 65
end portion of a'coiled length of stock may be
inserted broadside into said straightener while
the coil proper is loaded onto said reel.
2'L'8tock feeding apparatus for a drawbench
the die, said reel being operative to retain said
coil in unwinding position on said .support during
the drawing of said stock regardless of conditions
in said coil tending to prevent the unwinding of
the stock therefrom.
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34. Apparatus according to claim 33 further in- ‘
cluding means to render said support normally
. immovable‘ at the position along said guides to
and the like comprising a track. a carriage hav v70 which it is moved by said means to move in
ing supporting wheels mounted on said track, - - threading said stock end through said die.
a supporting ‘arm extending upwardly from one
35. Apparatus according ,to claim 33 further
side of said carriage, ‘an upwardly inclined shaft
characterized in that said means to move com
having its lower end anchored in the upper por
prises a hydraulic ?uid pressure displacement
tion of said arm, and a reel rotatably mounted 75 motor, the arrangement being such that said
2,412,049
13
support may be held in a substantially ?xed '
adjusted position by ?uid pressure con?ned in
said motor.
36. Apparatus according to claim 33 further
characterized in that said means to move com
prises a hydraulic ?uid pressure displacement
motor, the arrangement being such that said sup
_ port may be held in a substantially ?xed-ad
14
.
justed position by ?uid pressure con?ned in said
motor, said drawing machine having means to
draw the stock through the die, and means re
sponsive to the attainment of a predetermined
excess fluid pressure in said motor to interrupt the
_operation of said means to draw. '
WALLACE E. KERR.
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