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Патент USA US2116326

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May Y3, 1938.
o. E. sElFFERT'
2,116,326
PUNCH PÈEss
Filed Nov. 17, 1956
5 Sheets-«Sheet l
INVENTOR
By
QM» f. Wawy
`
ATTORNEY
May 3, .1938. '
2,116,326
O. E. SEIFFERT
PUNCH PRESS
Filed NOV. 17, 1956>
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May 3, 1938.
o. E. sElFFERT a
2,116,326
PUNQH PRESS `
Filed Nov. 17 , 1936
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5 Sheets-Sheet :3
May 3,V 1938.
2,116,326
o. E. SEIFFERT
`PUNCH PRESS
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Filed Nov. 17, 1956
5 Sheets-'Sheet l4
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2,116,326
PUNCH‘PRESS
Filed Nov. 17, 1936
5 Sheets~~$heet 5
'0770 E. Sel/:Amr
INVENTOR
BY
ATTORNEY
`Patented May 3, 1938
2,116,326
UNITED STATES PATENT OFFICE
21,116,326
PUNCH PRE S S
Otto E. Seiñert, Union, N. J.
Application November 17, 1936, Serial No. 111,214
16 Claims. (Cl. 29-34)
My invention relates to’punch presses and has replace the various cams Without disturbing any
particular reference to presses adapted to form other parts of the press, having at the saine time
various articles from sheet metal.
a number of slidesreciprocating in direction of
The object of my invention is to provide a
punch press which can be used to produce sev
eral individual parts and to assemble them into
a more or less complete article during one cycle
of operations of the press. For this purpose I
provide means to support several dies producing
corresponding number of pieces during each
stroke of the ram of the press, there being prefer
ably several strokes of the ram during one revo
lution of the main flywheel of the press. I also
provide supplementary reciprocating members,
also operated by the main flywheel, likethe ram,
which can be provided with means to support
various tools for performing additional oper
ations on the pieces produced by the dies, also
for assembling these pieces together, including
certain parts delivered to the press from the out
side sources.
Another object of my invention is to provide
means for stopping andA starting the driving.
mechanism within several cycles `ora. fraction’ ofi
a cycle, the stopping means being manually con
trolled, including a remote electrical control. For
this purpose I provide a clutch, preferably of a
jaw type, between the driving flywheel and the
driving shaft in` the press, and a cam-shaped
bushing on the driving shaft, which is under ac
tion of springs tending to press it against the
clutch thereby engaging the latter. The cam` is
moved by a pin in the frame, which can be
moved in and out of engagement with the cam.
B-y releasing the pin, the driving shaft can be
made to stop at a desired point in the operating
cycle of the press, for instance. when the“ ram
, and the reciprocating members are moved> away'
from the dies.
Another object of my invention is to provide
means to- individually feed stock to the different
dies and tools, also to feed separately prepared
parts to- be assembled withv the articles made in
the dies. I also provide means tor adjust the rate
of feed simultaneously for dilferent dies and sepa
rately for each die. For this purpose I provide>
adjustable operating levers and replaceable or
changeable gears- for the feed mechanism.
the operating zone, and which can be arranged
to perform Various additional operations on the 5 '
articles being produced by means of various tools
mounted on the inner portions of these' slides.
Another object of my invention is to provide a
number of cam members on the end of each shaft,
each cam member operating a separate slide, the 10
slides operated by one shaft being arranged in
sliding relation to each other. The cams are pref
erably made of different diameters, the inner
cams being smaller, so that the corresponding
slides can be placed under the slides from the 15
outer cams.
Still another object of my invention is to pro
vide additional fixtures or tools for the slides in
the form of turret heads and ratchet wheels, so
that each slide can be made to perform several 20
different successive operations during its several
strokes during one cycle.
With my punch press it is possible therefore to
perform o-n a single machine various operations
which would otherwise require the use of several
separate presses, drop hammers, assembling ma
chines, and additional manual operations.. It is
also possible to perform these various operations
in a single automatic cycle, thereby obtaining a
finished and assembled product directly from the 30
machine without any intermediate manual or
other operations.
My invention is more fully described in the ac
companying
specification
and
drawings,
in
Which35
Fig. 1 is an elevational view of my punch press
employing a toggle drive.
Fig. 2 is a similar view of a punch press ern
ploying an eccentric drive, showing also a feed
ing mechanism.
40
Fig. 3 is a detail View of a slide drive by cams.
Fig. 4 is a top plan view of the press shown
in Fig. 2.
Figs. 5« and 6 are views of a belt buckle as made
on my press.
\
Fig. 7 is a sectional view of a caster head as
made on my press.
plurality of sliding bars or slides radially extend- `
Fig. 8 is a detail View of a slide with a dial
mechanism for assembling certain parts of an
ing from the operating zone at the dies to the
article.
Another object of my invention is to- provide a
‘
sides of the press, the slides being `operated by ` Fig. 9 is a detail View of a device for’assem
rotary cams mounted on exposed> ends of shafts? bling parts of the caster head shown in Fig. 7.
operated by the main driving shaft; Withk this
Fig. 10 is a detail View of a turret mechanism
arrangement it is possible» to easily’ and` quickly' for making the shell of the caster head;
55
2
2,116,326
Fig. 11 is a detail view showing the caster shell
in the process of being assembled by the turret
mechanism shown in Fig. 10.
Fig. 12 is a detail view showing a preliminary
stage in the assembling of the caster head.
Fig. 13 is a detail view showing another pre
liminary stage in the assembling of the caster
head.
Fig, 14 is a top plan view of the machine fully
assembled.
My punch press consists of a` frame | with a
bolster 2 which may be formed integrally with the
frame as shown. A ram 3 is slidably supported
on gibs 4 and has a face plate 5 operating dies
6, 1 supported on the face of the bolster 2 in a
usual manner. The gibs and the sides of the ram
are made with a slight taper so as to provide a
closer fit when the ram is operating the dies than
when it is moved away from them. This insures
more accurate ñt of the dies and conserves the
cutting edges. The gibs are shown located hori
Zonta-ily, although, of course, they can be made
inclined with a correspondingly inclined bolster.
In a particular embodiment shown in Fig. 1, the
25 ram is reciprocated against the bolster by a toggle
mechanism consisting of levers 8 and 9 pivotally
connected at I8 and ll with the ram and a
toggle block l2. The latter is held by tie rods
|3 and |4, the latter being cast in the frame |.
The lever 8 is pivoted at I5 to one end of a
toggle rod IG, the other end of which is journaled
on an eccentric portion l1 of a shaft I8. The
latter has a gear |9 in mesh with a gear 20 on a
main driving shaft 2l.
IThe gear 2li is shown of
a larger diameter than the gear I9 so that the ram
makes more than one stroke for each revolution
of the main shaft. A gear 22 on a shaft 23 is con
nected by a belt or chain 24 with a hopper or
feeder' 25 for small parts which are delivered
through a chute 25 to dies for assembling with
the stampings. These parts are also shown in
Fig. 4, the gear 22 being shown in dotted lines
and provided with a pulley 21 for the belt. A fly
wheel 28 freely rotates on the outer extension of
the driving shaft 2| and can be connected by a
belt with a suitable source of power (not shown)
for its operation. The flywheel has one or more
teeth 29 which can engage corresponding slots
3Q in a sliding jaw clutch 3|.
The ciutch 3l is keyed to the shaft 2| so that it
connects the flywheel with the shaft when the
tooth 29 engages one of the slots 38. The clutch
is pressed against the iiywheel by springs 32. It
has an enlarged cylindrical portion 33 with a
cani-shaped edge 54 engaged by a pin 35 slidably
supported in a bearing 38 in the frame. The pin
is pressed by a spring 31 against the clutch 3|.
When the clutch is engaged, it rotates with the
shaft 2|, and the pin 85 follows the curvature of
60 the cam-edge 34 until a projecting portion of the
cam engages the pin thereby forcing the clutch
back and releasing the tooth 29. The position of
the pin between its collars 43 thereby retaining
the pin in an inoperative position. To stop the
press, the lever 45 is turned back thereby releas
ing the pin, which snaps in its position at the
cam and stops the press as soon as the hump of C21
the cam engages the pin. The lever 45 has an
extension 41 connected with a plunger 43 of a
magnet 49. This magnet is controlled by push
buttons at convenient places and can be used
for stopping the press from various remote points.
It cannot be used to start the press, however,
and serves principally as a safety device and to
insure quick stopping if there is any fault inv
the press operations.
A modified form of drive for the ram is shown
in Figs. 2 and 4.
a ram 52.
The frame 58 has gibs 5| for
A stub shaft 53 is journaled in a
clevis 54 at the end of the ram, the shaft having
a hole for the threaded end of a driving rod 55
held by nuts 56. The other end of the rod 55
has a bearing for an eccentric portion of a shaft
51 connected by a gear 58 with the driving gear 28.
The bolster 2 which supports dies 6 and 1
shown in Fig. 1, also supports feed slides 59 on
rails 68, there being individual slides for each die.
Two slides are shown but there may be a larger
number of them arranged side by side, all op
erated by individual levers 6|, 62, connected with
the slides by links 53. The levers 5| and 82 are
connected
gears 64, 85 rotatively mounted ;,
between collars 66’ on a shaft 68 fitted by its ends
in the sides of a. frame extension 81. The gears
64 and 65 are in mesh with gears 83 and S9 keyed
on a shaft 1|) journaled in the sides of the ex
tension 61 and having a lever 1| on one end. l
The lever 1| has a slot 12 for a bolt 13 connect
ing it to one end of a link 14 the other end of
which is connected by a bolt 15 passing through
a slot 16 with a lever 11. This lever is pivoted
at 18 in a bracket 85 and has a sliding block 19 40
with a pin 30 engaging a cam slot 8| in a cam
cylinder 82 mounted on the end of a shaft 51.
By changing the position of the bolts 'f3 and 15 in
the levers 1| and 11 it is possible to change the
rate of feed for stock 84, usually in the form of
strips of metal.
The feed can be also changed
individually for each slide 69 by changing the
respective gears 64 and 58 or 65 and 89. The
cam slot 8| may be made for different length of
feed stroke, and it can be made to produce one 50
or more feed strokes during one revolution of the
shaft 33.
The shaft 51 has a second cani cylinder 86 with
a cam slot 81 engaging a pin 88 on the end of a
slide 89. The other end of the slide has a notch
9|) or similar arrangement for holding different
tools used for supplementary operations on parts
stamped out by the dies from the stock 34. The
end of the shaft 51 has a bevel gear 9| in mesh
with gears 92 and 93 preferably at right angles
stop the machin-e. The pin has also collars 43
to the gear 9|. The gears 9|, 92, and 93 are lo
cated in the middle portion of the press near the
dies and substantially at the sides of an opening
94 for scrap falling from the dies. The gears 92
and 93 are mounted on the ends of shafts 95, 95
extending outside of the frame and having on
their outer exposed ends cam cylinders 98 and
91. The cylinders have cam grooves 98 and 99
for rollers |00 and 59| on the ends of slides |íl2
and |03. The slides |82 are placed under the
which can be engaged by a slot 44 in a hand lever
slides |03, which is made possible by having the
45 pivotally supported at 46 on the frame. In
order to release the clutch for continuous opera
tion of the press, the pedal 4l is depressed and
the lever 45 turned by hand until its slot engages
cam grooves 98 of a smaller diameter than the
grooves 99, as may be seen more clearly in Fig.
3. The outer end of the inner slide |02 has an
the hump on the cam is arranged so that the press
stops when the ram is moved away from the
bolster to facilitate work with the dies. The pin
35 has an extension 38 pivoted at 39 to a bar 40
having a pedal 4! at one end and being pivoted
at the other end on a pivot 42. By stepping on
the bar, the pin 35 is withdrawn and cannot then
additional roller |84 resting against the inner
2,116,326
3
flange of the outer cam cylinder 91, thereby pro
eral independent feeds for separate dies, it is pos
viding a better bearing surface for exerting a. sible to make several `separate stampings by a
pressure on the work by tools on the inner ends`
single stroke of the ram; the working stroke of`
of the slides. The rollers |00 are smaller and the ram occupying a fraction of one revolution
Ul lighter and are used only or mostly for retrieving
of the driving shaft, the remaining portion of the
the slide, when it does not perform any heavy revolution can be used for performing additional y. Ul
duty. Similar cam cylinders |05 and |00 are operations on the stampings. delivered from the
mounted on the end of a short shaft |01 .con- ‘i main die, using for these additional operations
nected With the driving shaftv 2| by spur gears multiple slides working from four different di|08 and |09. With this arrangement there are
four sets of slides converging by their inner ends
to a zone `of operations near the main dies 3 and
1 where they can be used to perform various sup
plementary operations on stampings or similar
rections, there being more than one slide in each
direction; these additional operations can be
further expanded or elaborated by using ratchet
operated dials and turret heads on the slides;
parts produced by the dies.
The four sets of slides, converging from four
using these various devices to assemble together
diiferent directions to the Zone of operations, are
driven by three central bevel gears and two outer
spur gears. This arrangement `permits to have
delivered by separate feeding devices.
a free space for the scrap hole 94 where otherwise
may have been the fourth bevel gear for >the
slides.
‘
By combining operations by the tools `on the
slides with the operations performed by the main
dies, it is possible to produce more or less com
plicated articles entirely automatically. One ex~
ample of such articles is shown in Figs. 5 and 6
representing a belt buckle ||0 with a claspy | | l.
Another example is shown in Fig. 7 representing
a stamped head of a caster with a disc | l 2 wedged
between the ends of the head | I3 and provided
with a central bearing H4. The method of mak
ing this article is shown in Figs..8 to 13 incl. For
this work a turret head I | 4’ is employed rotative
1y mounted on a pin | | 5 fitted in the end portion
of the slide |02. The head ||4 works against a
die IIB by its tools ||1, IIB, and H9. A ratchet
wheel |20 is mounted on thehead H4 and is
turned by a pawl |2| pivoted at |22on alstation«
Il O ary portion of the frame of the press.` A punch
|23 is also mounted on the slide` i 02 and works
in cooperation with adie block |24. A suitable
parts made on the different dies of this press, in
cluding also parts made o-n other machines andv
Another important advantage of my press is
that it can be easily changed from a toggle ram
to an eccentric ram, the rest of the machine «in
cluding its drive rem-aining unchanged. This is
important when it is desired occasionally> to
change the type of work on the press: for light
work, where a low power expenditure is preferred,
the eccentric drive will be used; and for a heavy 25
work it may be changed over to the toggle drive.
Another important advantage resides in the
construction of my clutch. The cam 34 can be
provided with as many projections to be oper
ated by the pin 35, as there are strokes of the 30
ram in one revolution of the driving shaft, and
the projections can be located so that the clutch Y
becomes disengaged before the stroke of the ram,
thereby stopping the machine in time to prevent
theoperation of the ram when the operation is I
no longer wanted or is dangerous to the Work.
This feature of the clutch is especially useful in
connection with the electromagneticV control of
the pin 35. The magnet can be controlled by push
buttons placed conveniently in various places 40
around the machine where the operator may need
them for stopping the ram in time to prevent its
punch (not shown) pierces holes in the strip B4’ operation, or where some adjustments may be
into which bearing bushings ||4 are fed by a needed. The magnet can be also controlled auto
chute 26 from the hopper 25. Discs ||2 are then matically, and some of the applications of the
sl 5
punched out of the strip 84’ and left in a cir
automatic control are shown in Figs. 8 and 10.
cular dieV |25 in a hole |26. The punch |23 sep- . Here an automatic switch is shown, consisting of a
arates a blank |21 from the strip 84. The blank stationary contact plate |38 mounted on an in
is then formed into the head ||3 in the die H5 sulation post |39 on the bolster or on the die»
50 by the tool ||1 as shown in Fig. 10. The slide 89 between the two strips of sheet metal 84 and 84'
50
turns the die 25 by a pawl |28, bringing the as.
being fed into the dies. The plate | 38 has two
sembled disc H2 with the bushing H4, which legs `extending over` the two strips. Additional
has been riveted in its place by a suitable tool contact plates must be provided in case there are
(not shown), under a guiding block |29. A more than two strips being fed into the dies.
plunger |30, operated by a slide |03, `brings the A resilient strip or plate |40 is mounted on an
disc ||2 in alignment with a slide |3| moving in insulation post |4|, the plate |40 being also pro-l
a slot in the head |29 by the end of a lever |32. vided with two legs in case of two strips of stock`
The lever |32 is mounted on a pin |33 supported being fed into the dies.
von the frame of the press. The other end of the
A lug or button |42, made of an insulating ma
60 lever has a pawl |34 operated by the slide 89 hav-terial, extends from the plate |40 down'and `rests
ing ashoulder |35. The slide |3| moves the disc against the-strip >34 or 84', thereby keeping the 60
H2 into the open `end of the head H3 whose . end of theplate |40 away from the plater|38.
flanged upper portion remains suñiciently open The plates |38 and |40 are included in the cir-`
on top at the side to admit the disc. A movable cuit of the magnet 49, `so that this circuit remains
9fo guide |36 temporarily retains the discuntil it is
open as long as there is a strip of stock being fed 65
wedged in its place by the tool H8 as shown in intoone of the dies.
As soon as one'of the stock f
Fig. 13. The tool H9 finally closes `the edges of strips is all used up, the
button |42 drops down ‘
the head | I3 over the disc, and the assembled part and the end `of the resilient contact plate |40’- l
is ejected by an arm |31 fitted on the frame of comes to rest against the end ofthe plate |38,
the press. A pin | 38 guides the disc | l2 when thereby closing the circuit for the magnet 49
it enters the bushing || 4.
-
One of the important advantages of -my press
is that it can automatically perform a variety of
operations usually requiring several separate ma
chines plus some hand labor. By combining sev~
and stopping `the machine. One of the electro? l
magnetic `indicators |43 of an ordinary construc
tion, preferably mounted in an indicator board |44
on the side of the press, is also included in the‘ .
circuit ofthe contact plates |38 and |40, so that
70
amasser`I
the operator will instantly know Ythe reason-Why.“ render the electromagnetic meansoperative when ‘f
the press stopped, by glancing at’ the<indicator~~ the results ,of operations of the/feeding means:board. Other indicators, suitably numberedor“4 and tools deviate fromnormal.
3.‘A punch press ‘comprising a bolster and a
provided with symbols or Wordsfare"‘connectedftf
to various other automatic switchesr‘on‘the press. . ram; a driving member, means to reciprocate the <
Another automatic switch, shown- in conjunctionr ram by the drivingmember, a centralgear mech«v
with the plate |40 in Figs. 8 andlO,- althoug-h‘fit`r anism operatively connected with the driving.;
can be used independently, is used'to 'stop‘the/ member, shafts radially extending from the gear,v
press in case the dies and other 4devices .become-v mechanism, ,carri members on the outer exposed i:
defective and will >not let the strips, moved byfthe4 ~
ends of the shafts, tool slides adapted to be re
10
ciprocated by the cam members, dies adapted to
strips will begin to buckle.l This switchi‘consists _ be supported between the'bolster land the ram',
feeding devices, to pass through, so that the
means to feed stock into the dies by one of. the.
of a stationary contact plate |45',‘='shown as an
extension of the plate |40,.and a movable resilientv z‘ cam members, tools on the slides adapted lto
plate |46 located under the stationary Aplate `and ' operate on the stock in cooperation with’the dies, v
supported on an insulation post |41’.
The plate'sf:l saidtools Yand :saidfdies being adapted to com-.
|45 and |46 are included in the circuit. of `the ; plete .their operations during/one revolutionrof Í
the driving memben'and means to automatically.
control said operations and their order of suc
the bolster. or die, and ypressingfthe‘fplate . |46 l cession;
4. A punch press comprising a bolster and a .
againstfïthe. plate*- :I 45u Aî- separate 'indicator -is.
ram, a plurality of dies adapted to be supportedrì
included‘in this circuit;
on the bolster and adapted to be operated by the
Another . automatic switch is ». formed with` a
photoelectric tube |48 placedunder a hole |49 inY ram, means to reciprocate the ram, a shaft, oper-vv
magnet 49 and -close this circuitwhenïthe strip
84 #becomes-buckled; rising‘from the surface of
Athe die- or in-thepress, over which‘is' moved .the ‘
ative connections between the shaft and the re--
stripf84 or- 84"- after a punching operation.
An`
ciprocating meansya driving‘member, a clutch .
light passes through a hole"‘|5|fpunc‘hed in` the
means to adjust the length of feed, a plurality of.V
usednto render inoperative the-magnet circuit
the dies, and means to individually operate the
ordinary ¿electric lamp |5û’i‘is placed opposite’ fthe connecting the driving member andthe shaft',
photocelly |48 and energizes’lthe latter when therv means to feedstock individually to the dies,
stock 'by the die.y The currenty in -this Acase is 1 tool supporting slides in cooperative relation to
which otherwise'would be closedI bythe movement , slides by the driving member.
5. A punch'press comprising a frame; a bolster
of thel strip 84 from'the die. .
on the frame, a ram `movably supported on the
Automatic switches are also :used in mypress to
indicate any defects >-in forming operations'ias frame, means to reciprocate the ram against the f
bolster, the bolster being adapted to support a
shown in Fig. 10. Here aresilientcontact'mem
ber |52`issupported on aninsulati'on post |53 i plurality of dies,'a shaft, means to operate thel
and presses by its point'lon a flange y|54-‘ofr- an'Í ram by the shaft, a driving member for the shaft,
article ||3 being formed‘ïin a bendíngïdie. The-> means to feed stock tothe dies, a plurality'of i'
point is insulated from the rest ofthe-plate.
Another contact plate |55, which can be mounted
cams rotatively and replaceably supported at the
exposed portions of the frame, means torotate
on the same insulationpost |53,‘is adapted to be the camsby theshaft, slides operatively’ con
depressed by‘ the descending larmfof the punch .' nected with the cams, and means to support
|23.,.thereby bringing _the hooked'end'of -the plate tools on the slides in cooperativerelationv to they
|52y in opposition- toa hooked endv of 'the plate ' dies.
6. A punch press comprising a frame, ya‘bolster
|55 as shown in Fig. 10.- The plates-.become sepa-'
rated by the flange |54,A keeping the magnet; circuit ï on the frame, a ram movably supported on` the
frame, means to reciprocate the ram against the
disconnected. The = circuit becomesk closed,v .f how
ever; if the-flange is-:notformed in its proper " bolster, the bolster and the ram being adapted
Vplace, indicating', defect inl the- stockror‘V intthev-` to support respective positions of dies, a driving f
member,` a plurality/of shafts extending in dif# f
dies.>
It is understood ’that`~ my punchipress fca'n'vbe f ferent directions outside of the frame, operative
modified without `departing from‘rthe‘spirit' of connections between the driving member, the
my invention as set forth in the appended claims.> reciprocating means and the shafts, cams're-'A
placeably supported on the exposed portions of f
l.y A> punchy press >comprising a bolster Y"and Va f the shafts, means to'feed stock to the dies, slides
operatively connected with the cams and con
ram, means to reciprocate-the ram .againstthe
I claim asmy invention:` ‘
bolster, a driving member adapted'to operatey the
verging to a point at the side `of the dies, and
means on the slides to support tools for addi
reciprocating means, an electromagnetic means
60 «to render »the reciprocating vmeans inoperative, . tional operations on-the stock in the dies.
7. A punch press comprising a frame, a bolster
dies on the bolster, means to feed stock.k into the s
dies, and‘a‘pluralityof contact members adapted formed on the frame, a ram movably supported
to be operated bythe stockiand adapted-to lrenderV ‘ on the frame', means to reciprocate the ram
the electromagnetic means-operative'when the> against the bolster, a driving member, operative
connections between the driving member and the
reciprocating means, the bolster being adapted
ciprocating members "adapted to support‘tools, a to support a plurality of dies, means to feed stockr
driving member adapted: to vsuccessively operate individually to the dies, a common‘drive for the
individual feeding means, a cam‘member adapted
the reciprocating members ‘during its one. revolu
tion, an electromagnetic means to'frenderthei to operate the common drive and operatively
driving member inoperative before the' next“ op;v connected with the driving member, and means
to :àdjust the common drive for different rates lof
erative movement of the next reciprocating mem
ber, means to «feedstock for'the tools, and a` plu-' fee .
8. A punch press comprising a frame, a bolster
rality‘ of switches adapted 4to be operated by the f
on the frame, a tram movably‘supported-on the
Lstoclt
`.under
‘action
of;
the.
.tools
.andl
adapted-to
I
75
.progress of the stockideviates from normal.
2. A punchfpress comprising a pluralityofme--
2,116,326
frame, adriving member, means to reciprocate
the ram by the driving member, the bolster being
adapted to support a plurality of dies, means to
feed stock individually to the dies, a common
drive for the feeding means, a shaft operatively
connected with the driving member, a cam mem
ber mounted on the shaft and operatively con
nected with the common drive, and means to
adjust the rate of feed individually for the sepa
10 rate feeding means.
9. A punch press comprising a frame, a bolster
on the frame, a ram movably supported on the
frame, a driving member, means to reciprocate
the ram by the driving member, the bolster
15 being adapted to support a plurality of dies, a
plurality of shafts operatively connected with the
driving member, a plurality of cam members on
each shaft, slides adapted to be reciprocated by
the cam members, and means to support tools on
20 the slides supplementing the dies.
10. A punch press comprising a frame, a b01
ster on the frame, a ram movably supported on
the frame, the bolster being adapted to support
a plurality of dies, means to reciprocate the ram
25 against the dies, a driving member operatively
connected With the reciprocating means, means
to feed stock to the dies into an operating zone,
a plurality of shafts radially extending in the
frame from the operating zone, a plurality of
30 cylindrical cam members on each shaft, slides ex
tending from the cam members to the operating
5
tion ofthe frame at the inner end of the fourth
shaft being provided with an opening for the re
moval of scrap.
13. A punch press comprising a frame, a bol
ster on the frame, a ram movably supported on
the frame, the bolster being adapted to support
a plurality of dies, slides movably supported on
the frame, a driving member, means to inde
pendently reciprocate the ram and the slides by
the driving member, the slides converging by 10
their inner ends to the zone of operations at the
dies, one slide being adapted to support a die on
its inner portion, the other slide having a turret
head adapted to support a plurality of tools for
cooperation with the die, and means to rotate. 15
the turret head by the reciprocating movement
of the slide supporting the same.
`
14. A punch press comprising a frame, a bol
ster on the frame, a ram movably supported on
the frame, the bolster being adapted to support 20
a plurality of dies, slides movably supported on
the frame, a driving member, means to inde
pendently reciprocate the ram and the slides by
the driving member, the slides converging by
their inner ends to thezone of operations at the 25
dies, the slides being adapted to support tools
cooperating with the dies, and a dial rotatively
supported on a die and adapted to be rotated by
the reciprocating movement of a slide, the dial
being adapted to support a die and to transport 30
a portion of Work from one set of tools to an
Zone, the slides from the cam members on one
other.
shaft being supported in slidable relation to each
15. A punch press comprising a frame, a bol
ster on the frame, a ram movably supported on
the frame, a driving member, means to recipro 35
other, and means to support tools on the inner
35 ends of the slides.
'
11. A punch press comprising a frame, a bol
ster on the frame, a driving member, a ram mov
ably supported on the frame and adapted to be
cate the ram by the driving member, the bolster
being adapted to support a plurality of dies, a
reciprocated by the driving member, the bolster
frame, means to rotate» the shafts by the driving
40 being adapted to support dies in an operating
zone, a plurality of shafts radially extending from
the operating Zone, means to rotate the shafts
by the dirving member, a plurality of cylindrical
cammembers of different diameters on each shaft
45 the inner cams being of a smaller diameter, slides
extending from the cam members and operative
ly connected therewith, the inner slides from the
smaller cam members being adapted to slide
under the outer slides, the inner ends of the slides
being adapted to support tools in the operating
zone, and means to feed stock to the dies in the
operating zone.
l2. A punch press comprising a frame, a bol
ster on the frame, a driving member, a ram mov
55 ably supported on the‘frame and adapted to be
reciprocated by the driving member, the bolster
being adapted to support dies in the operating
zone, four shafts extending radially from the
operating zone, three outer shafts being con
60 nected by bevel gears at their inner ends, a drive
shaft operatively connected With the driving
member, and spur gears connecting the drive
shaft with the fourth shaft and with the oppo
sitely located one of the three shafts, the por
plurality of shafts rotatively supported in the `
member, cylindrical cam members on the shafts, 40
slides movably supported on the frame, rollers
on the ends of the slides engaging the cam mem
bers, the slides being adapted to support tools
cooperating with the dies, thrust rollers on the
ends of the slides, and flanges on the cam mem
bers abutting the thrust rollers, the thrust roll
45
ers being adapted to relieve the strain from the
guiding rollers during the operating strokes of
the slides.
16, A punch press comprising a frame, a bol 50
ster and a ram on the frame, means to recipro
cate the ram, the bolster being adapted to sup
port dies, slides movably supported in the frame,
means to independently reciprocate the slides,
the slides being adapted to support tools co 55
operating with the dies, a dial on a slide adapted
to be intermittently `rotated by the movement of
the slide and adapted t0 Support tools, means to
feed stock to the dies and tools in the press, and
a hopper adapted to feed semi-finished parts for 60
assembling with the product from the dies and
tools.
QT'I‘O E. SEIFFERT.
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