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Патент USA US2092480

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Sept. 7, 1937.
`
H, H, TALBOT
2,092,480
ROLLING MIL-L FEEDING APPARATUS
Filed Jan. s, 1954
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sept. 7, 1937.
.
H_ H TALBOT
ROLLING MIL-L FEEDING APPARATUS
Filed Jan. 8, 1954
2,092,480
-
y
s sheets-smet 2
WITNESSES '
INVENTOR
MW
.
Sept. 7, 1937.
|-|_ H, TALBOT
2,092,480
ROLLING MILL FEYEDING APPARATUS
’ Filed Jan. s, 1934
mnìnrïü‘nín n nn
5 sheets-sheet 3
Patented Sept. 7, 1937
l 2,002,480
` UNITED STATES rrfrrzNTí ` OFFICE ” ¢
2,092,480
ROLLING MILL reEpING APPARATÚS
Howard H. Talbot, Pittsburgh; Pa., assignorkto
United Engineering & Foundry Company,
Pittsburgh, Pa., a corporation of »Pennsylvania
Application January s, i934, sei-iai Nd. '105,701
13 Claims'.
This invention relates to an improvement >in
rolling» mill equipment and more particularly to
apparatus for feeding relatively thin flexible
stock into a mill and tensioning itwhile it is
5
(ci. ¿s0-i3)
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'
vcordance with the invention; Fig. 2 a front ele
vational view of the same apparatus; Fig. 3 a
plan view and Fig. 4 a horizontal _section taken
on the line IV-IV, of Fig. l showing the feeding
In the operation of the more modern rolling
and leveling apparatus removed.
f
Referring in detail to the drawings, the numer
mills; and especially mills of the backed-up type
_als 20|! and 202 designate the working and back
being worked by the mill.
' _
»
in which relatively small. working rolls are em- ' ing rollsv respectively of a rolling mill of the
ployed,` difûculty is -frequently. encountered in
10 entering the material between the working rolls.
backed-up type, which is _the ’E_Ype of mill more
particularly contemplated by this invention, al' 10
`This is due principally, to the f_act that the bite
angle of the small working rolls is _such that- it
does not provide sufficient grip to Areadily pull
»though it is not necessarily so limited in its use.v
the stock into the rolls byv mere engagement with
between which the feeding- apparatus designated '
it. Alsofbecause-of the nature of the bite angle,_
if the end of- the lstock is 'at all deformed or
These rolls, as shown, aresupported in the cus
tomary manner inra" pair of »roll housings 203,
generally by the numeral 200 is in the most part 15
located.
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In the single embodiment -of 'the invention il__-_l
'lustrated this feeding apparatus comprises a
mill. vIn fact, such mills 'are incapable of pick
ing up -stock which is as thick as they are capable ‘ main stock and roll-supporting -frame 205 which
warped; it makes it diiiicult to enter it.` in the
of eiîiciently and effectively Working without the
. stock being positively forced into them. Because
of this and because of the lack of suitable feed
ing apparatus__for such mills in the past they
have inthe most part
been operated 'very inem- ‘
cieritly'.
.
With these difficulties and the desirability of
’ tensioning the material While it isbelng rolled
in mind, it_ is the primary objectvof this inven
tion,l generally stated, to provide' an improved
30 . and novel form of mill feeding'apparatus which
is capable of 'positively feeding into the Working
rolls of a rolling mill of the type employing small
Í working rolls material thatis too thick to be
entered into the roll pass formed thereby with
is of an' oblong shape and mounted to ride on a 20
pair of bars orrails 206 attached to the inner
faces of the roll housings 203. For receiving these
rails this frame is provided with a pair of oppo
sitely disposed grooves 20l in its side walls which
adapt it to be reciprocated ba'ck Jand forth in 25
and opposeduto the ‘direction _of travel of the
stock into the mill for feeding purposes.v
In the upper central portion of s_uch frame
there is mounted in suitable bearings 200 a plu
rality of spaced transversely extending rolls 200. 30
Opposite these there are se'cured front and rear
stock-supporting aprons Íor tables 2i!! and 2l2
which are preferably made of some suitable soft
material, suchasbrass or wood, and projected
out the application >of a positive pressure .and beyond the ends of the` frame `205. The forward 35
which is also adapted to tension the material 'of these aprons, as will be described more in- de
wtail hereinafter, is 'employed more particularly
after it is engaged in the mill.
.
` Another object is to provide an apparatus of to guide the forward ends of the stock into the
this character which is adapted to maintain the -roll pass formed by the working rolls 20H’ of the
stock in proper alignment as it is being rolled mill and the rearward one» to guide the stock 40
into- the feeding apparatus or over the main
and'also tensioning it without in ‘any Way mark
stock-supporting frame 200.
_
v
_
ing or mari-ing its surface._
Above this main stock-supporting frame 205
A further object is to provide a combined
there is provided a clamping frame 2l3 which
sticker and-dragwhich is capable of also _straight
consistses'senti'ally of a pair vof side walls 2id 4'5
ening the material and at the same time oper
ating to feed new: pieces of stock into the mill and a plurality of cross ribs 2l5 so fabricated
at a very rapid speed.
_
._
'_
A
as to form a rigid structure similar to the main
'
A still further object is torprovide an appara
tusembodying the aforementioned advantages
which is simple andsturdy of construction, de
pendable in operation and capable of being readilyJapplied to a `mill in operation as well as one
under construction.
.
_
,_
frame 205. On the bottom of this latter frame
directly above the rolls 209 located in the center
of the lower frame there is provided a pair of 50
similar rolls „2HE which are mounted in suitable
bearings 2 i l with their axes disposed midway be
tween the axes of the rolls 200 so that they will
>form with the latter rolls a stock-engaging and
various other novel features and advantages oi' leveling pass for resisting the movement of thel 55
the invention, will be apparentyvhen the follow- . stock through `the feeder to thereby tension it
ing detailed description is read' in conjunction afterit is engaged in the k_mill and straighten it
. These and various other objects, as Well as the
withthe accompanying drawings of which Fig.
1 is a sectional view taken von the line i-i of
60 Fig. 3 of a feeding apparatus constructed in ac
before it reaches the mill. ’
’
lV
On the side walls 2M of such clamping frames
ir of vertically disposed guid 60
2
2,092,480
ing plates 2|8 which are extended downwardly
along the sides of the main frame 205 and ar
ranged to slide in two pairs of guides 2|9 secured
to the sides of the latter` frame which prevent
any endwise movement of the upper frame when
lowered and raised to engage and disengage the
the material so as to resist its movement there
stock mounted on the lower frame.
" 10
236 and the levers 242 and 243 are rotated to
ward the mill. During the first part of this move
ment the upper frame 2 I3 is moved into operative
engagement with the lower frame, that is with
the upper rolls 2|6 projecting below the surfaces
of the lower rolls 209 and in a position to flex
For raising and lowering the upper frame 2|3
and also reciprocating the entire apparatus to
through, and hence tension it and straighten it
ward and from the mill a hydraulic motor 22| is
provided, being mounted for convenience on a
into and pulled through the mill.
._
10
As soon as the stock is properly gripped in the
pedestal 222 located directly below the feeder.
While not shown, any suitable source of power
supply may be utilized for operating this motor
which consists essentially of a cylinder 223 and
a plunger 224 and any suitable control for con
trolling its operation may be employed.
To the plunger 224 of this motor there is at
tached a connecting rod 225 which in turn is
~ connected to a cross head`226 located at’the mill
as Well as hold it in alignment as it is pushed
feeder the continued movement of the plunger
224 in the same direction causes the feeder to
be moved forward toward the mill eventually
reaching its foremost position indicated by the
dotted lines 25| in Fig. l. To prevent the feeder
passing beyond this latter position a pair of re
siliently mounted stops 252 is secured in suitable
brackets- 253 to the two sides of the lower frame
205 adjacent the rear end thereof, being so ar- ~
end of the compression cylinder. From this cross
head a pair of connecting rods 221 is extended on
opposite sides of the engine through guides 228
to the forward end of the cylinder 223 and joined
ranged that they engage the sides of the mill
housings 203 when the frame is moved suffi
ciently in the forward direction. To accomplish
the same result when the feeder is moved away
25 together by a, shaft 229 on which a bifurcated
from the mill the rails or bars 206 on which the
connecting link -23| is pivotally mounted.
The
arms 232 of this connecting link are pivotally
connected to the free ends of a pair of cranks 233
which are keyed to a shaft mounted in spaced
30 bearings 235 located on an extension 240 of the
engine pedestal 222. On the outer ends of this
latter shaft 234 outside of the bearings 235 there
is secured a second and longer pair of cranks 236
which are extended upwardly toward the main
35 stock-supporting frame 205.
Secured to the under side'of the lower stock
supporting frame 205 in suitable bearings 231 and
238 located adjacent the opposite ends thereof is
a pair of shafts 239 and 24|. On the -ends of
40 these there are keyed two pairs of levers 242 and
243 respectively. The latter of these, which are
located at the rear end of the frame are some
what L-shaped and longer than the ~former and
connected by pairs -of links 244 with the upper
45 ends of the cranks 236 secured to the outer ends
of the shaft 234 mounted on the extension 240
of the pedestal 222 to which the plunger 224 of
the engine 22| is operably connected as previously
described.
50
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In substantial alignment with the shafts 239
and 24| mounted on theunder side of the main
frame 205 oppositely disposed' pairs of trunnions
245 and 246 are secured to the inner'faces of the.
side walls 2|4 of the upper clamping frame 2|3
55 and to these there are secured two pairs of con
..60
necting or lifting' rods 241 and 248 which are
also connected to the free ends pf the levers 242
and to the levers 243 near their free ends, while
between such latter levers at points directly op
posite the points where the lifting rods 241 and
248 are connected there is secured a pair of side
links 249.
-
With this arrangement whenever the plunger
224 of the engine 22| is moved away from the
mill it causes the cranks 236 and the levers 242
and 243 to be rotated in the same direction, and
l thereby lifts the clamping frame 213 away from
the lower frame 205 and also moves both frames
away from the mill. When so operated, the up
70 per frame 2|3- is adapted to support the upper
leveling rolls 2|6 clear of the lower rolls 209, as
shown in Fig.' 2, so that the stock can be readily
fed into the sticker which is thus disposed to a
position for receiving the stock prior to feeding.
75 On the reverse stroke of the engine the cranks
main roll and stock-supporting frame 205 slide
are provided with lugs 254 on their outer'ends
which are disposed to engage the rear end of
such frame.
A difficulty encountered in forcing flexible ma
30
terial of the nature contemplated by the inven
tion into the working rolls of a backed-up mill
or mill having a roll pass 0f the same character
is that the material buckles when it is pushed
against the rolls unless the force is applied- to 35
it very close to the mill and when 'such buckling
develops it is` practically impossible to enter into
the mill if any appreciable force is required for
such purpose. A further difficulty is to apply
the force to the material sufñciently close to the 40
roll pass of the mill to prevent this buckling.
To overcome these difficulties and at the same
time permit a roller leveler to be used as a feeder
and tensioning drag, a clamping shoe 255 is pro
vided on the forward end of the upper roll-sup
45
porting frame 2 |3 to cooperate with the platform
or apron 2|| on the lower frame 205 in forming
means for gripping and clamping the material
sufficiently close to the mill to prevent its buckling
.when forced toward the rolls. Another purpose 50
of such >shoe is to straighten the end of the ma
terial and thereby accurately register it with the
roll pass. As shown, the shoe, which, like the
apron`2| |, is preferably made of brass or some
other suitable soft material, is attached to a 55
frame 256 which is equipped at its rear'upper
corners with a pair of lugs 251 in which vertical
slots 258 are provided. In these slots a pair of
pins 259 secured to the side walls'2l4 of the
upper frame 2| 3 is engaged, the slots being pro
vided to permit the shoe 255 to be moved relative
to the frame 2|3 so that it may be released as
soon as the material isv engaged in the mill. As
will be appreciated it is desirable to so release
this shoe at such time so that the material can 65
be drawn without injury'through the feeder or
drag.
ï
For operating the shoe 255 in the manner re
ferred to its supporting frame 256 is connected
-at its two ends by- toggle links 26| and 2624 to the
walls 2 |4 of the clamping frame 2|3. 'Ir'hese links
10
are so designed that when they are in alignment, Y
and the clamping frame is operated to its stock
engaging position by the motor 22|, they firmly
clamp the shoe againstthe apron 2| |. To hold 75
2,092,480
3
them in alignment when the material is being
minimum of dimculty gear racks 212 are secured
clamped against the _apron 2H by the shoe 255l
to the lower side edges of the main supporting
frame and meshed with a pair of >pinions 213
and to break the toggle so as to release the shoe
after the material is engaged in the mill, a pair
of rods 263 is connected to their central joints
264 and'extended to the rear of the upper frame
2I3Jthrough the cross braces 2I5. At their rear
ends these rods are equipped withîcoil springs
265 which are disposed to bear against the rear
10 brace 2|5 and suitable stops 266 secured 'to them
at‘a point spaced from such brace. These springs
both hold the toggle links 26| and 262 in .align
ment under normal conditions and return them
to such position whenever the toggle is broken
15 and the forces breaking themare released.
To provide for automatically releasing the shoe
which are employed to move the appa-ratus after
its ,link connections are removed out beyond the
face of the mill so that the repairs can be made
with ease. 4As shown, these pinions are keyed to
a shaft 214 carried in bearings 215 attached to
the mill housings 203, the ends 216 of the‘ shaft
boing made non-circular to receive a turning tool 10
for effecting its rotation.
Among'the advantages of the invention is the
provision of a feeding apparatus for forcibly feed
ing iiexible material into a rolling mill and ten
sioning it after it is engaged in the mill, which 15
is simple and sturdy of constructon, efficient and
255 as the sticker reaches the forward end of its \ easy to operate at any desired speed, and at the
i feeding travel-under the inñuence of they operat
same time adapted to both maintain the end
`ing motor 22|, a pair of triggers _251 is pivotally
-20 mounted on the rear upper corners of the side
and the axis ,of the material in proper alignment,
as well as tension it without marring or impair
20
walls of the clamping frame and so arranged that` ing its surface.~ In addition, as will'be appre- l
their lower ends bear against the rear ends of the ~ ciated, it may be adapted for use with any shape
_ toggle operating lrods 263. The upper ends of of material which is contemplated bythe ap
‘these triggers are in turn disposed to engage a pended claims, as well as the fact that it may
25 pair of adjustable stops 268 mounted on the in
be modified in various ways as will be understood 25
ner walls of the roll housings 203 of the mill as
by those skilled in the art without departing`
the sticker approaches the forward end of its from the spirit .of the invention.
feeding travel. As a result theycause the trigger
I claim:
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to rotate above their pivots 269 forcing the v 1. A combined sticker and drag for forcibly'I
30 toggle rods 263 forward relative to the clamping
feeding thin metallic strip into a rolling mill 30
frame 2 i3 and thereby break the toggles as shown and tensioning it after it is engaged in the mill,
by the dotted lines 2li in Fig. l and lift the shoe. comprising a-roller leveler mounted for_move
_ In the event the stock or material is picked up
ment toward and away from the mill in the plane
bythe millbefore the shoe 255 is released by the of the working pass of the mill and adaptedto
to
' Ur triggers 261 it will, by friction, cause the shoe
tension the strip, means for positively moving said 35
255 to bepulled forward over the stationary apron leveler in both of said directions, means secured
2li thereby causing the toggle to be broken and to the forward end of said leveler for gripping
yin such way relieve the pressure on the shoe, thus the material and sticking the forward end there
preventing any damage to the material under of in the mill as the leveler is moved toward’the
'
mill, and means for releasing said gripping
40 such conditions.
In operation with the feeder in its released means when thel material is engaged in the mill.
position )a piece of material is fed through it
2. A combined sticker and drag 'for forcibly
feeding material to be rolled into a rolling mill
until the forwardend thereof is against or sub
stantially against the `mill rolls. The operating, and- tensioning it after it is engaged4 in the mill.
. motor 22H is, then actuated to effect the feeding comprising a roller leveler'consisting of a lower
operation which consists essentially of three and a vertically adjustable upper roll supporting
movements: First, the clamping frame 2i3 is frame mounted for conjoint movement toward
‘ moved into clamping engagement with the main
and away from the mill in the plane of the
supporting frame 205, causing 'the shoe 255 to Working pass of the mill, a single power unit for
adjusting said upper rollsupporting frame and 50
50 firmly engage the end of the material between
it and the apron 2li and rolls Zit to move to a positively moving both of said frames in both of
position with respect to the rolls 209 providing said directions, means secured to the forward end
a strengthening and tensioning pass; second, as of. said leveler for gripping the material and
soon as the clamping frame is moved to its stock
sticking _the forward end thereof in the mill as
‘ engaging position the entire apparatus is moved the leveler is moved toward the mill, and means
towardy the mill; and third, as the apparatus for releasing said gripping means when thema
nears the end of its feeding stroke the triggers terial is engaged in the mill.
'
261i engage the stops 268 breaking the toggles
3. A combined sticker and drag for forcibly
26l and 262 and lifting the shoe-255 to its re
feeding thin metallic strip into a rolling mill .
60 leased position.` Thereafter the passage of the and tensioning it after it is engaged in the mill, 60
stock through the mill is resisted by the effect comprising- a roller leveler consisting of a mam
thereon of the rolls 200 and 2i6 which in addi
lower roll supporting frame equipped with leveler
tion to tensioning the stock strengthens it and . rolls and a verticallyadjustable upperroll sup
porting frame equipped with cooperating leveler
' . maintains it in alignment without in any way
; marking or marring its surface.
rolls which are mounted for conjoint movement 65
After a piece of stock has passed through the toward. and away- from the mill in the plane of
the working pass of the mill, means for adjust
, mill the motor 22| is reversed to return the ap
ing said upper frame to engage and disengage a
paratus to its original position. During this vop
eration ofthe motor the clamping frame is first >piece of stock placed on said lower frame, means
moved to its released or elevated position and for positively moving both of vsaid frames inthe 70
then rearwardly. As the triggers 2li?`~ move away manner described, means secured to the forward
from the stop'268 thesprings onthe toggle op
end of said leveler in spaced relation to said
erating rods 263f1retrieve these rods and return leveler rolls for gripping the material and ,stick
the toggles to their aligned clamping position.
_ ing the forward end thereof in the mill as the
75
To provide for repairing the apparatus with a
leveler is moved toward the mill, and means auto
75
4
2,092,480
matically operable at a predetermined point in
mounted on said lower frame in front of and in
line with the rolls thereof, a clamping shoe ad
justably supported on said upper frame opposite
said apron, a toggle connection securing said shoe
to said upper frame, means for breaking said
toggle connection to release said shoe, means dis
posed to actuate said toggle breaking means after
a predetermined forward movement of said upper
with cooperating leveler rolls` mounted for move- . frame, a motor disposed below said lower frame,
and means connecting said motor to said two 10
ment toward and away from the mill in the plane
frames in such a` way as to operate said upper v
of the working pass of the mill, means for posi
frame into and out of operative relation with said
tively moving said leveler in both of said direc
tions, cooperating means secured to the forward lower frame and both said frames toward and
from the mill with which they may be used.
end of said leveler frames for gripping the ma
8. A combined sticker and drag for «forcibly
terial and sticking the forward end thereof in
feeding material to 'be rolled into a rolling mill
the mill as the leveler is moved toward the mill,
and tensioning it after it is engaged in the mill,
and means disposed to engage the mill andy auto
the movement ofthe carriage toward the mill for
releasing said gripping means.
4. A combined sticker and drag for forcibly
feeding thin metallic strip into a rolling mill and
tensioning it after it is engaged in the mill, com
prising a roller leveler consisting of a lower and
an upper roll supporting frame each equipped
matically release said gripping means when the
material is engaged in the mill.
5. A combined sticker and drag for forcibly
feeding thin metallic strip into a rolling mill and
tensioning it after it is engaged in the mill, com
prising a lower roll supporting frame equipped
with a plurality of leveler rolls mounted for move
ment toward and away from the mill in the
plane of the working pass of the mill, an upper
comprising a carriage equipped with cooperating
rolls disposed and adapted to engage a piece of
stock and resist the passage thereof through
them, means for positively moving said carriage
toward and from the mill, cooperating means se
?cured to the forward end of said carriage for
gripping and feeding the material into a mill, and
means for releasing said gripping means.
9. A sticker for forcibly feeding flexible stock
roll supporting frame equippedV with cooperating `into a rolling mill comprising cooperating Aclamp
leveler rolls and mounted for vertical movement ing elements disposed for movement into and out
with respect to said lower frame as well as for
horizontal movement therewith, means for rais
ing and lowering said-upper frame` and positively
ments towardand from- a mill, and means asso
moving both of said frames'toward and from the
mill, cooperating means secured to the forward
ends of said frames for gripping a piece of ma
ciated therewith disposed to engage the mill and
' terial disposed therebetween and sticking the for
ward end thereof in the mill as the two frames
are moved toward'the mill, and means disposed to
engage the mill and automatically release said
gripping means when the material is engaged in
40
of clamping engagement with a piece of stock,
means for forcibly moving said clamping ele 30
the mill.
’
6. A combined sticker and drag for forcibly
feeding thin metallic strip into a rolling mill and
tensioning it after it is engaged in the mill, com
prising a lower roll and stock supporting frame
equipped with one or more leveler rolls mounted
for movement toward and away from the mill in
the plane of the working pass of the mill, an
upper roll supporting frame equipped with one
or more cooperating leveler rolls mounted for
automatically release said clamping elements
when the material fed thereby is engaged in the
mill.
l
10. yFor use in combination with a rolling mill,
means operable as aV drag for applying a tension
to a piece of strip ‘being passed through the mill,
releasable clamping means arranged in front of
the tensioning means for gripping' the end of the
strip, and means for actuating said clamping
means to positively forcelthe end of the strip into '
the bite of the mill rolls.
11. For use in combination with a rollingy mill,
a strip straightening device arranged in front
of the mill and provided with means for resisting
the passage of a piece of strip therethrough,
means disposed between said straightening de
Vice and the mill for gripping the end ‘of the
strip, and \means for actuating said gripping '
movement with and relative to said lower frame,
means for positively moving said upper frame - means to positively force the end of the strip into
relative to said lower frame and both of said the bite of the mill rolls.
12. For use in combination with a rolling mill,
frames toward and from the mill, means secured
‘a roller leveler arranged in front of the mill to
to the forward ends of said frames for grip
ping the front end of the material and sticking it engage and resist the passage of the stock
into the millahead of the leveler'when itI is through ther mill, means arranged between said
moved toward the mill, and means automatically leveler and the mill for gripping the end of the
stock, and means for actuating said gripping
operable at a predetermined point in the move
ment of the roller supporting frames toward the means to positively force the end of the stock
60 mill for releasing said gripping means.
into the bite of the mill rolls.
13. For use in combination with a rolling mill,
'7. A combined sticker and drag comprising a
lower roll and stock supporting frame equipped a roller leveler comprising opposed sets of work
ing rolls for engaging a piece of strip and resist
f on its upper surface with one or more leveler rolls
and mounted for movement toward and away ing its passage through the mill, means for mov
from the working pass of a rolling mill, an upper ing one of said sets of rolls into and out of op
roll supporting *frame equipped with one or more erative position, means disposed between said
leveler an’d the mill for releasably clamping the
leveler rolls disposed to cooperate with the ñrst
mentioned rolls in forming a roller leveler and end of the stock, and means for actuating said
mounted for movement toward and from said clamping means to positively force the end of
lower frame and also therewith toward and from
a mill, a’stock supporting and clamping apron
the stock »into the bite of the mill rolls. `
~
HOWARD H. TALBOT.
î
'CERTIFICATE '0R CORRECTION.
'
_ September _?,f 1957.
RCWARD H. TALBOT.v
It is hèreby certified thaí: error appeàrs in the printed speciflcàtio'n.
of the above mimbered- potent requiring correction as follows : Page Ll., second
_ Column», line 18, elaim8,_aftez_~_the word "cooperating" insert sete of’ opposed I
horizontalljdisposed; -line 19 „ ,éame Claim, for-_' "disposed and adapted" read
arrangeçîg' same line and c1á‘im,'_.before "engage" insertßo; line. 20, same
o1aim,for "and" re ad as to; end that the saidvLetters Patent shoùld be» vrea-d.
with these'eorrecvti'ons therein _that the same'may conform to thel record '_
of> the case i'n the _Patent O_fí‘iee. A'
'
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1 '
Signed end sealed this 26th day of (_)c‘lÉobeI‘rl À. 'DQ -`1957. `
(Seal)
_
_
" `
_
’
Henry’v Van Arsdale,J
Acting- Commissioner of Patents..
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