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Патент USA US2507452

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May 9; 1950
'
P. w. MOORE, JR
2,507,452
s'rocx LENGTH GAUGE FGR SHEARING MACHINES
Filed July 22, 1948
2 She'etS-Sheet 1
May 9, 1950
P. w. MOORE, JR
2,507,452
STOCK LENGTH GAUGE FOR SHEARING MACHINES
Filed July 22, 1948
...UL
|"___
_______—-_—_J______
2 Sheets-Sheet 2
Patented May 9, 1950
2,507,452
UNITED STATES PATENT OFFECE
2,507,452
STOCK LENGTH GAUGE FOR SHEARING
MACHINES
Philip W. Moore, Jr., Winnetka, Ill., assignor to
Poor & Company, Chicago, 111., a corporation
of Delaware
Application July 22, 1948, Serial No. 40,053
1
5 Claims. \ (Cl. 164-59)
This invention relates to stock-length gauge
mechanisms for shearing machines of the so
called guillotine type.
A primary object is to provide means operated
by a ?uid-controlled unit synchronized with both
the descent and ascent of the ram which carries
the movable blade of the shear automatically to
adjust the length of the blank to correct given
size regardless of ordinary variation in the feed
ing stroke of the bar stock, thereby to reduce
waste and insure maximum e?iciency in the
shearing operation independently of the force
with which the bar stock is fed to the machine.
Another object of the invention is to provide
Figure 4 is a vertical section through the struc
ture shown in Figure 1.
Referring to the drawings in detail, A desig
nates, generally, a portion of a shearing machine
of the “guillotine” type, and B designates, gener
ally, a gauge mechanism constructed in accord
ance with the invention and operatively applied
to said machine.
The machine A includes, as usual, a base H3,
10 side arms H rising from said base, a ram l2 ver
tically reciprocable between said side arms, a
?xed lower blade [3 carried by said base, and a
cooperating vertically movable upper blade it
carried by said ram.
a gauge mechanism including a compact combi 15
A piece of stock material to be cut is designated
nation and arrangement of parts which may be
as M and is insertable endwise from the front
mounted above the line of bar feed and conse
of the machine A between the blades l3 and ill
quently substantially above the position of the
when the ram I2 and the upper blade l4 are
blades to facilitate access thereto from the rear
raised so that upon downward movement of the
of the shear for purposes of their removal and 20 said ram and said upper blade a section m is cut
replacement or repair.
from said bar length M.
A further object of the invention is to provide
Should a ?xed abutment be employed against
a gauge mechanism which operates substantially
which to advance the piece of material M in
without shock to either the shear or the mecha
order to predetermine the length of the section m,
nism itself thereby reducing vibration and conse 25 the piece of material M might bounce away from
quent wear and maladjustment of the entire ap
said abutment or might not be advanced quite far
paratus.
enough to contact the same, with the result that
A still further object of the invention is to
the section m would be of inde?nite length.
provide a shearing machine gauge mechanism of
Therefore, the gauge mechanism B is operable to
the type mentioned which employs a cylinder
permit the piece of material M to be advanced
and positively controlled ?uid piston power unit
a greater distance beyond the blades it, it than
and a novel, compact arrangement of cooperating
the predetermined length of the section m to be
parts including a wedge element operable by said
cut, and then, prior to descent of the blade M,
power unit to move the stock abutment or stop
is operable to return the piece of material M a
element of the mechanism toward the blades of
short distance relative to the blades it, it to
the shearing machine.
35 exactly predetermine the length of the section m.
With the foregoing and other objects in view,
The gauge mechanism comprises a pair of hori
which will become more fully apparent as the na
zontally disposed, laterally spaced apart support
ture of the invention is better understood, the
ing rods l5 suitably secured at their front ends
same consists in a shearing machine gauge mech
to the machine A and extending suitable dis
anism embodying the novel features of con 40 tances rearwardly from said machine in a hori
struction, combination and arrangement of parts
zontal plane above the top of the lower knife l3.
as are illustrated by way of example in the ac
Extending between the rods I 5 is a bar It; which
companying drawings and as will be hereinafter
is provided at its ends with eye formations i’!
more fully described and claimed.
through which said rods 15 extend, whereby said
In the accompanying drawings, wherein like 45 bar is supported by said rods for sliding move
characters of reference denote corresponding
parts in the different views:
Figure 1 is a side elevation of a portion of a
shearing machine of the “guillotine” type
ment therealong rearwardly away from and for
wardly toward the blades l3‘, l4.
Suitably secured against the bottom of the bar
l6 for forward and rearward adjustment relative
equipped with a gauge mechanism in accordance 50 thereto is a gauge block l3 which appropriately
with the invention.
,
may comprise a short piece of channel stock hav
Figure 2 is a rear elevation of the structure
ing downwardly extending front and rear ?anges
shown in Figure 1.
Figure 3 is a longitudinal section through the
structure shown in Figure l; and
l9 and 20, respectively, the former of which is
disposed approximately in horizontal alinement
55 with the top of the blade l3 and constitutes an
2,507,452
3
d
?uid under pressure to the upper end of the
cylinder 35 to cause the wedge element 253 to be
projected downwardly to move the gauge block
abutment or stop engageable by the forward end
of the piece of material M.
Extending rearwardly from the bar it is an arm
it forwardly, while as said ram
is moved up—
2| which has a downwardly extending terminal
portion 22 disposed behind the rear ?ange 28
of said bar 16. Extending through and threaded
wardly, the dog 39 actuates the valve 5?
in the portion 22 are screws 23 which have suita
cylinder 35 to retract the wedge element
and
permit the springs 32 to move the gauge block
ble swivel connections with the ?ange 26 whereby
they are operable to adjust the gauge block it.
forwardly and rearwardly relative to the bar it.
Bolts 24 extending through slots 253 in the
admit
fluid under pressure to the lower end of the
252 rearwardly.
s
gauge block 13 and threaded in the bar it‘ may
be employed to secure said gauge blocl; to said
bar for forward and rearward adjustments rela
tive thereto. Thus, upon loosening of the bolts
24, the screws 23 may be employed to adjust the
gauge block 18 forwardly or rearwardl‘ relative
C:
Now, assuming that the
i2 and the knife
it are raised; that the wedge element 23 there
fore is retracted; that the gauge ‘clock
held
in
32;itsand
rearwardly
that a bar
retracted
or other
position
piece of
by snateri
the em
has been advanced between the knives l3, it
until its forward end is in contact with or adja
it will be apparent that
the
is moved
downwardly the valve 36 will be actuated to admit
N G fluid under pressure to the upper end of the
cylinder
with the result the‘ the wedge ele
rear
which.
Extending
end
carries,
portions
between
medially
of the
and
thereof
rod
rigidly
I5 isand
secured.
a cross
at itsbar
tofront
ment
will be projected dowz yardly before, of
course, the upper knife it
the material
side, a guide member 5:"! for a vertically recip~
lvi. Upon do Ji'lWill‘d projection of the wedge
rocable wedge element 28, while ca'ried
the
element
the cross bar it and the gauge block
cross bar it medially thereof and in forward
*3 will be moved forwardly until the stop. ?ange
and rearward alinement with the guide member
is spaced a de?nite distance rearwardly from
2?, is a block 29 the upper portion of the re :
the knives it, Is,
as said gauge block is moved
face of which has an upwardly and forwardly
forwardly the stop ?ange 59, if not initially in
inclined wedge surface
the forward end of the piece of
The wedge element 28 has a lo
front, up 30 engagement
material M, will engage the said forward end of
wardly and forwardly inclined wedge surface 5%
the piece of material and move the same rear
for cooperation with the wedge surface
and
wardly until the stop flange 58 is a de?nite dis
said wedge element is downwardly proioctable
tance from the knives
is as determined by
between the guide member 2i‘ and the block 922
to cause the wedge ‘surfaces
ill to coact to 35 adjustment of the gauge ‘clock is relative to the
to
thethe
adjustment
bar Hi. By
maythen
be maintained.
tightening the bolts
move the bar it and the gauge block iii a short
distance forwardly.
cross bar
and the amount of forward move
ment imparted to said cross bar and gauge block
by the wedge element 28.. The section
of the
piece of material M thus will be of exact length
effective to move said cross bar ii‘: and the gauge 40 which may be predetermined by adjustment of
the gauge block it relative to the cross bar it.
block it rearwardly when the wedge element 28
As will be noted, the supporting rods I5 and
is withdrawn upwardly following its downward
the cross bar it of the present gauge mechanism
projection. In this connection the wedge element
are disposed above the horizontal plane of the
28 may be withdrawn upwardly only until its
wedge surf-ace 30 mates with the wedge surface 4 upper edge of the knife it, which is quite advan
tageous in that it permits ready access to the
3} so that said wedge element may constitute a
lower knife 13 whenever it is desired to remove
stop to limit rearward movement of the cross
and replace the same. It will also be noted that
bar 16 and the gauge block 18 by the springs 32.
the present gauge mechanism advantageously
Alternatively, any other suitable stop means may
be provided to limit rearward movement of said 50 extends only a minor distance behind the ma
chine A and is of low height, compact design.
cross bar 15 and the gauge block It. In any
Moreover, it will be appreciated that since the
event, the arrangement is such that whenever
power unit 33 reacts from the cross ‘oar
and,
the wedge element 25% is retracted, the gauge
26 Connecting
are contractile
the cross
spiral
barsprings
it with32.
thewhich
cross are
is moved a short distance rearwardly,
hence, from the rods 15 to move the cross bar it
and whenever said wedge element is projected
and the gauge block is along said
the
mechanism is subjected to little or no shock, but
block
said gauge block is advanced a short distance
operated smoothly and therefore possesses long
.
life.
A fluid-operable cylinder and piston power
From the foregoing description considered in
unit 33 is employed for projecting and retracting
the wedge element 28 and is mounted, in accord— 60 connection with the accompanying drawings, it
is believed that the construction and operation
ance with the invention, upon an arm 3% which
of the present gauge mechanism will be clearly
is rigid with and extends upwardly from the cross
understood and its advantages appreciated. It is
bar 26.
desired to point out, however, that while only a
Admission and exhaust of ?uid under pressure
to and from the upper and the lower ends of the 65 single speci?c structural embodiment of the in
vention has been illustrated and described, the
cylinder 35 of the power unit 33 for the purpose
same is readily capable of speci?cally different
of projecting and retracting the wedge element
structural embodiments within its spirit and
28 is under the control of a pair of valves 36 and
forwardly.
31’ which appropriately may be mounted on the
arms ll, M, respectively, of the machine A and
which may be of any suitable type for actuation
by a pair or dogs 38 and 38, respectively, carried
by the ram l2. In this connection, the arrange
ment is such that as the ram i2 is moved down
wardly, the dog 38 actuates the valve 36 to admit
scope as de?ned in the appended claims.
I claim:
1. In a shearing machine of the type compris
ing a lower ?xed knife and a vertically recipro
cable ram carrying an upper vertically recipro
cable cooperating knife, a pair of laterally spaced
apart horizontally disposed rods ?xed to said
5
2,507,452
6
machine and extending rearwardly therefrom in
is moved to its forwardly disposed position as
a horizontal plane above the horizontal plane of
said ram descends and is released for rearward
the top of the lower knife, stop means mounted
movement as said ram rises.
on said rods for forward and rearward sliding
movements therealong and disposed approxi
mately in the horizontal plane of the top of the
4. In a shearing machine of the type com
prising a lower ?xed knife and a vertically
reciprocable ram carrying an upper vertically
lower knife to be engaged by the leading end of
a piece of material advanced between the knives
reciprocable cooperating knife, a pair of laterally
spaced apart horizontally disposed rods ?xed to
of the machine, power means operable in re
said machine and extending rearwardly there
sponse to downward movement of said ‘ram to 10 from in a horizontal plane, a cross bar extending
move said stop means forwardly to a position
between and rigidly mounted upon the rear end
spaced a de?nite distance from said knives and
portions of said rods, a second cross bar mounted
operable in response to upward movement of said
on said rods for sliding movements therealong, a
ram to release said stop means for rearward
stop element carried by said second mentioned
movement, and spring means for effecting rear 15 cross bar and disposed to be engaged by the
ward movement of said stop means when the
leading end of a piece of material advanced
latter is released.
2. In a shearing machine of the type com
prising a lower ?xed knife and a vertically
reciprocable ram carrying an upper vertically 20
reciprocable cooperating knife, a pair of laterally
spaced apart horizontally disposed rods ?xed to
said machine and extending rearwardly there
between the knives of the machine, a vertically
reciprocable wedge element interposed between
said cross bars and operable by movement in
one direction to move said second mentioned
cross bar and said stop means forwardly to a
position in which said stop means is spaced a
de?nite distance rearwardly from said knives,
from in a horizontal plane above the horizontal
means for moving said second mentioned cross
plane of the lower knife, a cross bar extending 25 bar and said stop means rearwardly from their
between and mounted at its ends upon said rods
forwardly disposed positions, when said wedge
for forward and rearward sliding movements
element is moved in its opposite direction, an
therealong, said cross bar also being disposed
arm rising from said second mentioned cross
above the horizontal plane of the top of the lower
bar, a, fluid-operable cylinder and piston power
knife, stop means carried by said cross bar 80 unit mounted upon said arm and operatively
and disposed approximately in the horizontal
connected to said wedge element for vertically
reciprocating the latter, and means operable by,
plane of the top of the lower knife to be engaged
by the leading end of a piece of material ad
vanced between the knives of the machine, power
means operable in response to downward move 85
said ram to control operation of said power unit
so that said stop means is moved to its forwardly
disposed position as said ram descends and is
ment of said ram to move said cross bar and
released for rearward movement as said ram
said stop means forwardly to a position in which
said stop means is spaced a de?nite distance from
said knives and operable in reponse to upward
rises.
'
5. In a shearing machine of the type com
prising a lower ?xed knife and a vertically
movement of said ram to release said cross bar 40 reciprocable ram carrying an upper vertically
and said stop means for rearward movement, and
reciprocable cooperating knife, supporting means
spring means for eifecting rearward movement
extending rearwardly from the machine, stop
of said cross bar and said stop means when the
means mounted on said supporting means for
same are released.
3. In a shearing machine of the type com
prising a lower ?xed knife and a vertically
reciprocable ram carrying an upper vertically
forward and rearward movements therealong
and disposed to be engaged by the leading end
of a piece of material advanced between the
knives of the machine, wedge means projectable
reciprocable cooperating knife, a pair of laterally
to move said stop means forwardly to a position
spaced apart horizontally disposed rods ?xed to
in which it is spaced a de?nite distance rear
said machine and extending rearwardly there 60 wardly of said knives, ?uid-operable cylinder
from in a horizontal plane, a cross bar extending,
between and rigidly mounted upon the rear end
portions of said rods, stop means mounted on
said rods for forward and rearward sliding move
and piston power means mounted on said sup
porting means for projecting said wedge means
to advance said stop means, spring means to
return said stop means to a rearwardly disposed
ments therealong and disposed to be engaged by 55 position when said wedge means is retracted,
the leading end of a piece of material advanced
and valves operable by said ram to control supply
between the knives of the machine, a vertically
of fluid to said cylinder and piston, power means
reciprocable wedge element interposed between
so that said stop means is moved forwardly as
said cross bar and said stop means and operable
said ram descends and is moved rearwardly as
by movement in one direction to move said stop 60 said ram ascends.
means forwardly to a position in which it is
PHILIP W. MOORE, JR.
spaced a de?nite distance rearwardly from said
knives, means for moving said stop means rear
REFERENCES CITED
wardly from its said forwardly disposed position
when said wedge element is moved in its opposite
direction, a fluid-operable cylinder and piston
power unit mounted upon said cross bar for
vertically reciprocating said wedge element, and
means operable by said ram to control opera
tion of said power unit so that said stop means 70
The following references are of record in the
?le of this patent:
UNITED STATES PATENTS
Number
Name
Date
2,165,614
Cook et al. ______ __ July 11, 1939
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