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Патент USA US2105387

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Jan. 11, 193s.
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R, L, MLCOX
2,io5,387
CUT-OFF AND TRANSFER MECHANISM
Filed Jan. 6, 1937
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Jan. 11,1938.
R. L. WILCOX
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2,105,387
GUT-OFF AND TRANSFER MECHANISM
Filed Jan. 6, 1937
2 Sheets-Sheet 2
77
-. INVENTOR
RICH/«RDL Esrrf? W/Lcox
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ATTQRNE;
Patented Jan. 11, 1938
2,105,387
UNITED STATES; PAT ENT O FF ICE
2,105,387
GUT-OFF AND TRANSFER MECHANISMÍ
RichardV Lester Wilcox, Waterbury, Conn., as
signor to The Waterbury Farrel Foundry and
Machine Company, Waterbury, Conn., a cor
poration of Connecticut
Application January 6, 1937, Serial N0. 119,240
23 claims. (CL 10-25)
This invention relates to new and- improved
cut-olf mechanism of the type particularly adapt
ed forA upsetting, heading machines, or the like.
In machines of the character indicated a rod
length or a coil`of wire, herein referred to as a
rod, is fed through a cut-off die, or the like,l a
predetermined distance.'V That portion of the rod
projecting beyond the cut-off die is severed there
from on a line coincident with the face of the
l0 cut-off dieand then becomes a blank. The blank
is then transferred from its position in line with
the cut-01T die to one wherein its axis is substan
tially coincident with that of an adjacent die.
From this position it is projected into the die
15 and an operation performed thereon.
The improved mechanism herein described re,
lates particularly to devices for cutting off apor
tion of the rod and carrying it to another die or
dies.
„o
It is essential in some classes of work* that the
cut-offr end of the blank should be square With
the length thereof, that is, at a right angle thereto.
An object of this invention is to provide mech
anism that willso sever the blank from the rod`
25> that the end thereof will be at a right'angle to its
length and transfer it from its cut-oli position to
a succeeding die'or station for operations there
on.
Other objects and novel features of the inven
no, tion will appear from the description ofithe inven
tion as herein set forth and illustrated in the
drawings, wherein like numerals of reference indi
cateflike parts in the several figures;
Figure 1 is a fragmentary elevation of a por
gç, tion of an upsetting, headingmachine, or the like,
and ofthe cut-oif and transfer mechanism de
scribed herein, shown in its relative position at
substantially the beginning of its forward or cut
off ' and transfer movement;
Figure 2 is a fragmentary plan View of the
parts, substantially as shown in Figure l;
Figure 3 is a View similar to Figure 1, with the
cut-off and transfer mechanism shown in the
position as it engages the rod at the beginning of
45 thev cut-off or shearing operation;
Figure 4 is a similar view with the cut-off mech»
40
anism. shown as it begins-its return movement to
its cut-off position after presenting the blank to
the first die beyond the cut-off die;
Figure 5 is a perspective view of the cut-off
and transfer mechanism and a portion of the
carrier;
55
Figure 7 isa transverse sectional view of some
ofthe parts taken generally upon line 'I--‘I of
Figure 3.
Referring to the drawings, I0 indicates the body
of a header, upsetting machine or the like, in
which. is fixed a die block II, carrying plural
dies, that is, a cut-off die I2 and a fabricating
die I3.
In> the drawings only two of these dies are
shown, but the number thereof may be increased
as seems desirable or may be necessary.
Through the cut-off die a rod I4 is inter
mittently fed by anyv suitable means well known -in
the art.
It is customary that the inward limit of the
movement of- this intermittent fed should be de
termined by adjustable mechanism, such as a stop
device, or the like, not shown, but well known.
The above-described mechanism is old and well
known and constitutes no part of the present in
20 `
Actuatediby mechanism well known in the art,
so asfto derive a reciprocatory movement within
a bushing I6, or the like, is a'carrier I5. 'I'he
inner end of this carrier is shaped so as to provide
a substantially flat face I'I terminating at its
inner end in an angular wall I8. While the car
rierV I5 is shown as moving in a substantially
straight path, it may within the spirit and scope
of this invention move in a curved or other path.
'I‘he numeral I9 indicates the knife holder,
which has a tail `piece 20, one wall of which rests
against the face I'I with the rear end thereof
abutting against the angular wall I8;
This knife
holder I Bis separably secured to the carrier by ,
the screw 2l, or the like which passes through
the carrier and is threaded into the tail piece,
substantially as shown in Figure 6.
In the inner wall of the knife holder I9 is a
recess, within which is secured, by a screw 22,
or the like, the fixed knife 23, the forward end
of ‘which projects beyond the knife holder. Jour
naled on a stud 24 adjacent to the outer wall of
the knife holder is the carrier member 25, having
a tailpiece 26. Secured to this carrier member
25vby the screw 2l,V or the like, is the movable
knife 28.
To insure the maintenance of the fixed rela
tion of the carrier member 25 and movable knife
28Í a recess is provided in the adjacent face of d
each, soY that the parts may interlock, substan
tiallyV as shown in Figures 2 and 5. A spring 29
Figure 6 is a transverse sectional view of some
exerts its pressure so as to hold the movable knife
of: the parts taken generally upon line 6-6 of
28 in its down position with its lower edge in
contact with the knife 23. The upper outer face
Figure 3; and;`
5 ,
2,105,387
of the knife 23 is cut away at 30, substantially
the cut-off die be moved into an angular posi
as shown in Figure 4, the inner end 3l of which is
tion relative to said face. That face of the mov
able knife 28 which is adjacent to the face of the
curved with a radius substantially the same as
that of the rod.
The lower face of the movable knife 28 has a
Ul
curved opening 32 therein, the radius of which is
substantially the same as that of the rod, so that
when the knives are in substantially the position
shown in Figures 3 and 5 they surround the rod
approximately 270° and grip the same for the
major portion of its circumference.
As the surface of the cut .away portion 30 is in
substantially the same plane as the underside
of the blank, it provides support therefor during
15 the first portion of the return movement of the
carrier and while the blank is being projected
into the die l 3.
For rods of different diameters new knives hav
ing openings therein to correspond in diameter
20 with that of the rod may be substituted.
The rear face 33 of the movable knife 28 when
in its down position engages a wall on the fixed
knife 23. One side of the movable knife 28 in
its down position is in engagement with the lip
25. 35 and on the other side is ñush with and mov
die block Il is relatively wide, and being held
against lateral movement by the lip 35 and car CII
rier member 25, a movement exactly parallel
with the axis of the rod is assured, with the
result that the cut is square rather than angular
or otherwise. The inner face of the carrier mem
ber 25 is substantially parallel with the face of
the die block Il and the adjacent wall of the
knife holder I9. Thus the movable knife 28 is
further held against any possible lateral motion
while under labor. The fixed knife 23, being
rigidly secured to the carrier l5, cannot possibly
have any lateral movement.
Numerous modifications, changes and rear
rangements of the structure may be adopted
within the scope of the appended claims.
I claim:
‘
1. In mechanism of the character described,
wherein a rod is advanced through a cut-off die;
a, carrier or the like; and plural knives mounted
on the carrier to sever a portion of the rod, one
knife fixedly and the other movably.
able across the face of the cutter die l2 and the
2. In mechanism of the character described,
face of the die block l l (Fig. 7). Thus, the mov
able knife 28 is held against lateral movement
wherein a rod is advanced through a cut-off die;
and there are no joints, bearings, or the like, to
wear, disturb or disarrange this assured rigid po
sition relative to the rod and blank. À
In operation the rod is projected through the
cut-off die when the cut-off and transfer mecha
nism is in substantially its rearmost position,
351 as shown in Figure 1, at which time the movable
knife 28 is in its open position. This open posi
tion results from the engagement by the tail
piecel 26 on the carrier member 25 with a face
of the cam piece 3l, which is adjustably secured
40 to the body lli by screws 38 or the like.
Shortly after the inward movement of the car
rier has begun, the tail pieceV 26 rides off the
cam face and the spring 29 causes the movable
knife 28 to swing to its down position and enclos
ing the projecting portion of the rod I 4. Its then
`position is substantially vas shown in Figure 3.
rI‘hese knives jointly sever the projecting portion
of the rod on the line coincident with the face
of the cut-off die during the continued move
50. ment of the carrier and the cut-off portion, now
a blank, is carried into a position wherein the
axis of the blank is coincident with the opening
in the next succeeding die i3.
After the blank has been projected into the
55 die a suñicient distance to support it, the carrier
begins its return movement and the movable knife
28, by reason of its flexible mounting, swings free
over the blank and is returned and ready for
another cut-off operation. During this return
movement the tail piece 26, on the carrier mem
ber 25, engages the cam face of the cam piece
31, actuates said carrier member and movable
knife 23, and holds the same in its open position
ready for its next forward stroke. Adjustment of
65. the relative position of the cam piece 31 insures
a proper timing of the movement of the movable
knife 28.
As the rod is gripped firmly by the knives paral
lel to its length and the latter must maintain
70 such relative position, irrespective of the strain
that may be placed thereon by severing the rod,
the sheared ends of the rod must necessarily be
at a right angle to its length.
The rod cannot bend as it is sheared off, neither
75 can that portion thereof in front of the >face of
a carrier or the like; and plural knives to sever
a portion of the rod, one knife being fixed and
the other movable in relation to the carrier and -‘
toward and away from the fixed knife, the oppos
ing faces of these'knives when substantially in
Contact with each other almost completely sur
rounding the rod.
3. In mechanism of the character described, fr'
wherein a rod is advanced through a cut-off die;
a carrier or the like; and plural knives mounted
on the carrier to sever a portion of the rod, one
knife fixedly and the other movably, the movable
knife being so positioned that one face thereof
is adjacent to the face of the cut-off die and
the opposite face thereof adjacent to a part ñxed
to the carrier and whereby the knife is held
against relative movement while under labor
during the cut-off operation.
4. In mechanism of the character described,
wherein a rod is advanced through a cut-off die;
a carrier or the like; plural knives mounted on
the carrier to sever a portion of the rod, one
knife fixedly and the other movably; and means
for so mounting the movable knife that it is
flanked upon opposite sides by non-yielding walls..
5. In mechanism of the character described,
wherein a rod is advanced through a cut-off die ;;
a carrier or the like; plural knives mounted on 55
the carrier to sever a portion of the rod, one knife
iixedly and the other movably; and means for
so mounting the movable knife that it is flanked ‘
upon opposite sides by non-yielding walls while
the rod is being severed.
»
6. Inmechanism of the character described,
wherein a rod is advanced through a cut-off die;
a carrier or the like; and plural knives mounted
on the carrier to sever a portion of the rod, one
knife fixedly and the other movably, the movable
knife during the severing operation having con
tact with four non-yielding walls.
7. In mechanism of the character described,
wherein a rod is advanced through a cut-off die; ’
a carrier or the like; and plural knives mounted
on the carrier to sever a portion of the rod, one
knife ñxedly and the other movably, one of said
knives having .an opening in one edge thereof
substantially the same as approximately one
half of the periphery of the rod, andthe other
60
'2,105,887
knife having ra cutaway portion, the inner end
of whichis substantially the same shape asap
proximately one-quarter of said periphery. '
8. In mechanism of the character described,
wherein a rod is advanced through a cut-off die;
a carrier or the like; plural knives to sever a
portion of the rod, one knife being fixed and the
other movablein relation to the carrier; and
yielding meansv that exerts its tension to move
10 and maintain the movable knife to its position
in engagement with the fixed knife.
’9. In mechanism of Athe character described,
wherein a rod is advanced through a cut-off die;
a carrier or the like; plural knives to sever a
15 portion of the rod, one'knife being fixed and the
other movable in relation to the carrier; a car-
rier member; and means for securing the mov
able knife to the carrier member, whereby the
movable knife will be caused to travel toward and
20 away from the fixed knife in part by the carrier
member.
l0. In mechanism of the character described,
wherein a rod is advanced through a cut-off die;
a carrier or the like; plural knives to sever a
25 portion of the rod, one knife being fixed and the
other movable in relation to the carrier; a carrier
member; means for securing the movable knife
to the carrier member, whereby the movable
knife will be caused to travel toward and away
30 from the fixed knife in part by the carrier mem
ber; and means for positively actuating the car
rier member during a portion of the movement
of the carrier.
»
11. In mechanism of the character described,
wherein a rod is advanced through a cut~off die;
a carrier or the like; plural knives to sever a
portion of the rod, one knife being fixed and the
other movable in relation to the carrier; a ca_r
rier member; means for securing the movable
40 knife to the carrier member, whereby the mov»
able knife will be caused to travel toward and
away from the fixed knife in part by the carrier
member; and means, as a cam or the like, for
positively actuating the carrier member during
45 a portion of the movement of the carrier.
3
rier member; means for securing the movable
knife to the carrier member, whereby the mov
able knife will be caused to travel toward and
away from the fixed knife in part by the carrier
member; a cam in the path of the carrier mem
ber, whereby during the movement of the carrier
the carrier member is in engagement with the
cam and actuated thereby; and yielding means
resisting the action of the movable knife when
the same is actuated through the carrier mem 10
ber.
l5. In mechanism of the character described,
wherein a rod is advanced through a cut-off die;
a die block; a cut-off die in said die block; a
fabricating die in said die block; a carrier or the
like; plural knives to sever a portion of the rod,
one knife being fixed and the other movable in
relation to the carrier; and means for mounting
the movable knife, whereby it will co-operate
with the fixed knife to sever that portion of the
rod projecting through the cut-off die and hold
such portion during the further movement oi'
the carrier and present the same in line with the
fabricating die.
16. In mechanism of the character described;
a carrier; a knife holder secured thereto; a car
rier member mounted on the knife holder; a fixed
knife secured to the knife holder; and a mov
able knife secured to the carrier member.
17. In mechanism of the character described, 30
wherein a rod is advanced through a cut-off die;
a die block; a cut-off die mounted therein, the
face being substantially iiush with that of the
die block; a carrier or the like; a knife holder
with a forwardly projecting lip fixed to the car 35
rier and having one face substantially parallel
with the face of the die holder; a carrier member
on the knife holder; a knife fixed to the knife
holder and projecting in advance of said lip; and
a movable knife fixed to the carrier member with
one face thereof adjacent to the inner face of
said lip.
18. In mechanism of the character described,
wherein a rod is advanced through a cutl-oif die;
a carrier or the like; plural knives to sever a
12; In mechanism of the character described,
portion of the rod, one knife being fixed and the
wherein a rod is advanced through a cut-off die;
a carrier or the like; plural knives to sever a
other movable in relation to the carrier; a car
rier member with which the movable knife has
portion of the rod, one knife being fixed and the
an interlocking connection; and means for sep
other movable in relation to the carrier; a car
rier member; means for securing the movable
arably securing the knife to the carrier mem 50
ber, whereby the movable knife will be caused
knife to the carrier member, whereby the movable
knife will be caused to travel’toward and away
from the fixed knife in part by -the carrier mem
55 ber; and a member in the path of the carrier
member, whereby during the movement of the
carrier the carrier member is in engagement with
the member and actuated thereby.
13. In mechanism of the character described,
60 wherein a rod is advanced through a cut-olf die;
a die block; a cut-oñ‘ die mounted therein, the
face being substantially iiush with that of the
die; a carrier or the like; plural knives mounted
on the carrier to sever a portion of the rod during
the movement of the carrier, one knife being fixed
and the other movably; a carrier member having
theV movable knife connected thlerewith; and
means for mounting said carrier member, where
by one face thereof is substantially parallel with
70 that of the face of the die block.
' 14. In mechanism of the character described,
Y wherein a rod is advanced through a cut-olf die;
a carrier or the like; plural knives to sever a por
tion of the rod, one knife being fixed and the
75 other movable in relation to the carrier; a car
to travel toward and away from the fixed knife
in part by the carrier member.
19. In mechanism cf the character described,
wherein a rod is advanced through a cut-off die;
a die block; a cut-off die in said die block; a
fabricating die in said die block; a carrier or the
like; plural knives to sever a portion of the rod,
one knife being ñxed and the other movable in
relation to the carrier; and means for mounting
the movable knife, whereby it will co-operate
with the fixed knife to sever that portion of the
rod projecting through the cut-off die and hold
such portion during the further movement of the
carrier and present the same in line with the
fabricating die, the movable knife lifting from
the blank after the same has been in part pro
jected into> the fabricating die and during the
first portion of the return movement of the
carrier.
20. In mechanism of the character described,
wherein a rod is advanced through a cut-ofi
die; a die block; a cut-off die in said die block;
a fabricating die in said die block; a carrier or
the like; plural knives to sever a portion of the 75
2,105,387
rod, one knife being ñxed and the other mov
able in relation to the carrier; and means for
wherein a portion of a rod is severed from Ithe
rod at a cut-off die or the like, and lsuch por
mounting the movable knife, whereby it will 'tion transferred to and projected into a fabri
co-operate with the fixed knife to sever that cating die or the like; a carrier; plural knives
portion of the rod projecting through the cut
mounted on the carrier to sever said portion and 5
off die and hold such portion during the further carry it to the fabricating die, `one knife support
movement of the carrier and present the same in ing said portion in part while being projected
line with the fabricating die, during the return
into the die; and means for moving one of said
movement of the carrier, the movable knife mov
knives to its open position during the withdrawal
ing upon its pivot mounting and being disen
movement of the -cutter and maintaining such ,1,0
position until it is closed at the next forward
gaged from the blank as it is projected in the
fabricating die, at which time the substantially
straight wall of the cutaway portion of the fixed
movement of the carrier.
knife supports the blank upon the underside
thereof.
2l. In mechanism of the character described,
wherein a portion of a rod is severed from the
rod at a cut-off die or the like, and such portion 15
wherein a portion of a rod is severed at a cut
off die or the like; a carrier or the like; and
plural knives mounted on the carrier to sever
20 such rod portion, one knife ñxedly and the other
movably, the movab-le knife during the severing
operation having contact with a plurality of
non-yielding
walls.
.
22. In mechanism of the character described,
23. In mechanism of the >character described,
transferred to and projected into a fabricating
die or the like; a carrier; a cutter having plural
knives on the carrier to sever said portion and
carry it to the fabricating die, and means for
moving one of said knives to its open position dur 20
ing the withdrawal movement of the cutter and
maintaining such position until it is closed at the
next forward movement of the carrier.
RICHARD LESTER WILCOX.
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