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Патент USA US2412874

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Dec. 17, 1946.
Filed July 21, 1942
5 Sheets-Sheet l
m _
Dec. 17, 1946.
Filed July 21, 1942
F l G ' 2'
5 'Sh'eetSe-Shee‘t 2
Dec. 17, 71946. "
Filed July 21. 1942
5 Sheevts-Sheet 5
and vKARL ,A.KUHN.
Dec. 17, 1946.
Filed July 21, 1942
‘5 Sheets~$heet 4
Q- W» 3945-
Filed July 21 ,
SheetsswSheet 5
G. 5.
Patented Dec. 17, 1946
Edward V. Crane and Karl A. Kuhn, Brooklyn,
N. Y., assignors to E. W. Bliss Company, Brook- _
lyn, N. Y., a corporation of Delaware
Applicationaluly 21, 1942, Serial No. 451,750 ‘
4 Claims. (Cl. 153-21)
The present invention relates to ‘container
making machinery and, moreparticularly, to a
flanging machine for use in flanging the ends of
‘ ‘To the accomplishment of the ‘foregoing and
related ends, said invention, then, consists of the
means hereinafter fully described and particu- ‘
larly pointed out in the claims; the annexed
Machines of this general type are old and well
drawings and the following description setting
known and servethe functions of expanding or
forth in detail certain mechanism embodying the
?aring the ends of acan body prior to the opera
invention, such disclosed“ means constituting,
tion of securing the ends of the can. High speed
however, but one of various means in which the
production is an essential in ‘machines of this
principle of the invention may be used.
character. The operation of the machines here 10
In said annexed drawings: ‘
tofore used has resulted in di?iculty in preventing
' Fig. 1 shows a front viewoflthe machine;
damage to the cylindrical can bodies as they are
Fig. 2 shows a side elevation on a slightly
rapidly, fed to and through the machine.‘ *It will
larger .Scale, some parts being shown ‘in section;
be readily apparent that these bodies, consisting
Fig. 2% is a perspective view of a portion of the
of cylinders of unsupported sheet metal, may be 15 machine frame;
_ ‘
very rapidly knocked out of round as they are
‘Fig. 3 is a side view partly in section, on a still
fed through a magazine into the machine.
larger scale with the hand wheel and top portion
In the ?anging operation itself there has been
diiiiculty, due to a tendency of the ?anged end
Fig. 4 is an elevation partly in section on line
to partially resume ‘the form it had prior to 20 t—4 of Fig. 3;
i l
flanging. In other words, the metal was‘not
. Fig. 5 is a section on line 5-5 of Fig.- 3 which
metal can bodies.
properly set at the flange. Another disadvan
tage of the hanging machines hitherto inuse
consists in the necessity of providing heavy frames
and reinforcing parts for counteracting theform
ing stresses of the fianging operation.‘ ‘The .25
weight of the machine is thereby increasedito
illustrates the adjusting mechanism; and
Fig. 6 is a section on line 6-6 of Fig. 4 showing
the star wheel and the flanging heads.
Referring to Fig. 1, reference numeral I I desig
nates the upper part of the machine frame sup
ported by a base 12 built in the form of a pedestal
a degree that affects the strength of the machine
which is adapted to house a motor‘ M. A door
parts. Furthermore, with machines as hereto
it in the front wall of the ‘frame gives access to
fore constructed it has been inconvenient and 30 the ?anging mechanism proper, later to bede
difficult to adapt the same to handling ‘cans of
scribed. Two elongated slots I‘! are provided on
different sizes.‘
one side of the machine by which adjustment of
The general object of this invention has ;been
to provide a flanging machine which overcomes
the disadvantagesheretofore present in machines
of this character. .A novel frame ‘construction
has been embodied in-the machine according to
the invention, in‘ which integral tension load
carrying members of the frame take up the re
sistance of the can ?anging movement of; each
head, thereby eliminating objectionable bending
of the main shaft of the machine with itsre~
sultant right-angle bending forces on the shaft
supporting frame. It is another object of the
invention to provide a frame construction by
which the load maybe applied to the parts dur
ing the ?anging operation in a straight line, as
contrasted with an offset manner, thus permit
qcams for controlling the hanging mechanism is V
achieved, handles l8 being part of the‘ adjusting
mechanism just mentioned. This mechanism will
be described below with reference to Fig. 5. A
hand wheel 20 and alocking handle 2| therefor
are likewise part of the adjusting mechanism;
theseymembers are shown on the left-handside,
of the machine frame, mounted in a cover 22.‘ ,
Fig. 2 illustrates in a general way the set-up of
the machine as seen from the left-hand side.
The machine comprises an upper chute 25 for the
delivery of can bodies from another operating
station, where the can bodies have been prepared
for the flanging operation. The chute 25, mount
ed on the upper part of the machine frame, con
sists of two plates (26 carried on said frameand
ting theworking thrusts to be delivered to the
‘attached thereto by connecting rods 28 and 29.
integral reinforcing members.
“Secured to each of the plates 26 are an upper
guideway 3!} and lower guideway 3| mounted on.
said plates by means of bolts 33. The chute 25
Still another object of the invention hasbeen
to provide a manner of feeding ‘the can bodies
to the machine to prevent their’being knocked ,
out of round due to bouncing infthe magazine,
occasioned by the speed of feeding. _ ‘
has a ‘straight upper portion and is curved toward
the bottom, a feature which helps to eliminate
55 jerks in the reception of, can bodies arriving at
shows the machine consisting of two halves,
the hanging station. The bolts 33 are slidably
mounted in slots 34 to 38 arranged at right angles
which are on the whole symmetrically built and
equipped by the same working parts; there, is,
with respect to the line of travel of the can bodies.
The slots are of increased length toward the bot
tom part of the chute. This makes the chute
adaptable for adjustment to follow the exact
however, a common drive for both sides of the -
machine housed on the right-hand side, which is
the stationary side, whereas the left-hand side
is adjustable, as will be more fully explained later ‘
curve needed for smooth feeding of the ‘cans.
It is important to follow a certain formula for
‘ the center line of the curved chute portion in
I on
The drive originating from the action of motor
l2_ is transmitted by belting to a pulley 50
mounted on a stub shaft 5| which is supported
in sleeve bearings 52 carried in a casting 53,
which forms part of the machine frame. Secured
to shaft 5| and rotating therewith is a pinion 55
relationship with the size of the particular can
body to ‘provide the above mentioned smooth
feeding of can bodies at the entrance to ‘the
?anging mechanism. To this end the radius of
the. center line of the chute is made equal to
which meshes with a ring gear 56 that serves for
about one and a half times the diameter of the ,
particular can body.
driving a large rotor 51. This rotor is connected
to the ring gear 56 by means of bolts 58.
' Below the bottom end of the chute 25 two star
Keyed at 49 to the rotor 57 so as to rotate
therewith is the central shaft iii which extends
across the machine and is keyed at 49" to a second _
' wheels ‘4% are mounted in the center of the
machine on a shaft M. These star wheels serve
to receive the incoming can bodies and to feed
them through the flanging mechanism. To in
‘sure the smoothness of feeding mentioned above
it is necessary to arrange the pick-up position of
the pockets formed by the arms a of the ‘star
rotor 51’. It will be seen that the shaft 4 i , driven
on the right-hand side of the machine by the
rotor 51, drives the-rotor 57’ and other driven
parts on the left-hand side of the machine.‘
Both rotors“ and 51" are of substantially
wheels to coincide with the discharge from the =
identical construction, "they are built so as to
feed chute as is vshown in the drawings. An im
portant feature of the invention has been the
provision of a particular path of travel for the
can bodies as they are fed to the ?anger. 'Thus
house the p'lungers of the fianging members, as
well as the cams and cam followers ‘which serve
as operating means ‘for reciprocating the hanging
the can bodies pass in a smoothly curved con- ;
tinuous path down the chute and into the path
of the star wheels. The line of travel of the
cans along the chute path ‘meets the circular path
of the star'wheel at a tangent. Thus jerks and
. '
diameter, the aforementioned ratio being re
' tained as to‘ diameters. Similarly, new star
wheels are used providing pockets to correspond
screw 63 whereas the adjustment of the whole ‘
hanging mechanism for cans of different sizes is
made by a separate mechanism arranged on the
left-hand side of the machine and illustrated in
Fig. 5. A long screw bolt 65 serves for connecting
In order to be able to use this flanging mech
anism for cans of different diameters the width
of the chute is varied in accord with the can
The hanging members comprise a plunger 6|
‘with, a plunger head 62 mounted thereon so as to
be adjustable for ?ne adjustment, by means of a
' bumping vin feeding are eliminated as the feed
path is continuous and smooth.
the plunger head 62 to plunger 6| for holding the
so parts against displacement during the flanging
with the diameter of the can to be fed. It will
of course be understood that the ratios 1:1.5, as
action. ' The head 62 bears against‘a thrust plate
64 which has a rim forming‘por-tion 86 laterally.
‘enclosingpartof the head, the ‘rim being formed
‘with a ?at end face ‘61 receiving the can ends and
given above need not be followed too closely but 45 imparting thereto a final bend. The plunger
heads are, moreover, ‘provided with a beveled face
that satisfactory reception of can bodies may also
68 which is stepped at 69. These faces serve for
.-‘ be obtained if the value is altered for about 25%
gradually bending the ends of cans to be ?anged
on the high or low side.
before they receive the ?nal ?ange forming bend
As shown in ‘the embodiment illustrated by the
drawings, each starwheel 49 has four arms a, but 50 by being'thrust against face 61 above mentioned.
The‘ plunger heads 62" on‘the left-hand side of
it may have six or more arms if it is desired or
the mechanism are not adiustably mounted, but
convenient.‘ The starwhe‘els are shaped to receive
arerigidly secured to their plungers 6 l ' by screw
the can bodies 0 as they are delivered down'the
'chute 25 and to carry them'to the operating sta
tion proper wherev they are ?anged, whereupon 55 ‘The four plungers of the. ?anging mechanism‘
are reciprocated by cam action in timed rela
they are moved‘on to a lower chute and fed out
tionship with the rotation~of the starwheeis. The
of the machine in any‘ desired manner. 'The
hanging position is shown on vtop, the inactive
lower chute consists in a pair of inclined rails 44
bolts 65".
which are mounted by means of bolts 48 in slots
~ position on the bottom of Fig. 4. Since the mech
anism for reciprocating the fla'nging members’i's
45; dB to plates 2-6 and may be conveniently
V60 of known construction it need not be here de
raised or lowered therein.
A unitary frame is provided Which includes
spaced, parallel members 23 and 24 and end walls
'53 and 83. The parts of the frame designated by
On each side of the machine, as mentioned be
' fore, a starwheel 40 is keyed to the central shaft
'23 and 24 are of reinforced construction and these
parts vare designed for taking up the thrust load
El and bolted as at 80 (Fig. 6) to a flange 8| of
"of the mechanism during the fianging operation.
Fig. 2e particularly shows the reinforced frame
portions 23 and ‘24, which, as mentioned above,
forcing webs 82 are also shown which surround
‘are designed to relieve the main shaft from ex
the rotor 51. In this ?gure interconnecting rein
‘the bearings supporting the fourplungers Bl.
Referring once more to Fig. 4, the left-hand
of the machine, carries a casting ‘forming a
' cessive stress thereby eliminating right-angle
sub-frame '19, which is’ movable on themam
bending actions on the shaft supporting portion
frame. This sub-frame supports the cams (as
shown in Fig. 5) which are, ‘therefore, adjust
able together with said sub-frame. This makes
of the frame.
The driving connections and parts of the ?ang- _
ing members are shown in Fig. 4.
This ?gure 75 the machine adaptable for ?anging cans of ‘wide
‘ ly differing ‘ sizes.1 The range of
jindicatedby the length of slots 11.
adjustability is
share-which bear on bosses I08 of casting 83.
f . The means which serve for adjustment, shown
‘Fig. 5,_comprise the hand wheel 29 which is
carried on a shaft 90 that is on one'end ‘sup
ported by a casting 83‘ forming part of the ma
chine frame, at the other end mounted in a sleeve
‘9| having an externally threaded portion 92. The
latter is threadingly engaged in a boss of- the
,cover 22. Sleeve 9| has a?anged end 9|a which
Pins I 99 serve for fastening the bolts I03 to mem
bers I05 which form part of thehandles I8. By
tightening‘ or loosening these handles, looking or
unlocking of the adjusting mechanism in a de
sired position is accomplished. A gib plate ‘I I 9
is provided and screwed to the, machine frame as
at III, on which the‘movable casting ‘I9 rides
while it is moving back and forth for adjustment.
For operating the adjusting mechanism, han
is provided with a‘ threaded bore for engagement
dles I8 are loosened to an extent which will re
‘with the threaded‘ end [9 of the handle 2|.
lieve-the‘ pressure of members I95 on bosses I 93
Shaft'90 is operatively connected to a pinion
and allow the members to slide in slots I'I. Next
93 which intermeshes on either side with ‘gears
the shaft 99 will be unlocked by means of handles
'94 and 949' respectively. These two gears are 15 2|. Then hand wheel 29' is turned to operate
"mounted on sleeves lIlI whichare threaded both
pinion 93 which will actuate the gears 94 and 94a
internally and externally, one being a right-hand
and rotate the sleeves‘, IUI, on which these gears
and ‘the other a left-handthread, and the pitch
are mounted. ' The external threads of sleeves
,of’th‘e thread being different. As a special ex
II", which are‘ right-hand threads, are screwed
ample‘ we may mention that the pitch of the ex 20 forward in casting 83, thereby moving the sleeves
ternal thread may be 41/2 to the inch, the pitch
to the right-hand side. .The inner sleeves_99 are
of the internal thread '7 to the inch. Threadingly
taken along during this movement for the same
received within sleeves I9I are another pair of
distance as sleeves IOI aremoved. ‘ At the same
sleeves 99 which are supported by shafts 95 and
time the inner‘threads of sleeves I9I which are
secured to a cam unit 75', 16' by an annular
left-‘hand ?threads, turn on sleeves 99 likewise
v‘member 98 welded to said sleeves and screwed to
moving the same to the right-hand side. By the
the cams as at I00.
In the cam unit one cam
serves to control the ?anging stroke, and another,
'not shown, controls the ‘return stroke. Shafts
95 extend from cover 22, to which they are con- -
nected by bolts 96 and nuts 91, through frame
83 into‘the cam unit ‘I5’, 76’. The arrangement
of the two pairs of sleeves allows of a telescopic
extension or retraction of the sleeves with respect I
to each other, thereby making the range of ad- ‘.
justment considerable without the use of exces
sively long sleeves. l The position shown in full
lines in Fig. 5 is for the largest size of cans which
may be handled by the machine. By moving the
cams toward the right-hand side the distance be-&
‘tween the plunger heads 62,’ 62’ will‘ become
“smaller and thereby the mechanism ‘is adjusted
to cans of shorter lengths.
The cover 22 is bolted to casting 83 by means
of bolts‘IIlB. Behind the casting 83, which is
part of the machine frame, the movable casting
‘I9 is shown in dotted lines; this latter casting is
secured to cams ‘I5’, 16' by bolts '18’, and forms,
as mentioned above, an adjustable unit with said
In the construction of the ?anging mecha
nism it is an important feature that the parts
carrying the stresses are all substantially in
alignment, via, in a plane approximatly coincid
ing with the middle portion of section line 5, in
Fig. 3. This accounts for the absence of any
twists or cantilever action on the frame.
construction of the adjustment mechanism and
the cam arrangement are very strong; the load
acting on the cams in a horizontal direction is
transmitted through the screws into the vertical
plane of frame 83 and from there again over the
horizontal frame portions to the vertical plane
of the cam unit. This quasi-box construction in
sures the absorption of high stresses without det
rimental de?ections of the machine frame.
For looking the cams and the mechanism asso
ciated therewith in the desired position, a lock—
ing device is provided, parts of which have
already been explained, while others are best
shown in‘Fig. 3. The mechanism comprises elon
gated bolts I93 with ends I 04 threadingly re
ceived in frame 19. The bolts are passed through
slots I01 of casting 83 and with their other ends
are mounted in members I05 of hemisphere 75
combined action of both threads sleeves 99 are
caused to ‘advance at a faster rate than sleeves
IOI. If the full extent of the ‘threads on'the
‘sleeves is used the cams ‘I5’, ‘I6’, together with
their supporting‘ frame‘ ‘I9 are carried forward
to the position shown in dotted lines in Fig. 5. It
is however, obvious that any intermediate posi
tion between the two extremes may be taken up
and the cams ?xed in that position by the tight~
ening of handles I8 and locking of shaft 90.
Before the machine is started the mechanism
is adjustedfor ?anging cans‘of different‘ lengths
in the manner just described, in addition thereto
?ne adj ustment of the plunger heads 62 by screws
63 may be desirable. The adjustment and, if
necessary, exchange‘of the guideways ‘39, 3| in
the delivery chute, on the other hand, will have
to take care of adapting‘the machine for can
bodies of varying diameters as indicated above.
The star wheels 49 will‘ also have to be so chosen
that the‘ pockets‘between the twoarm's will follow
the contour of the can body to be treated. Final
ly, the size of the plunger heads 62 has to cor
respond to the diameter of the can bodies and
several sets of plunger heads with thrust plates
64 ?tted thereto will, therefore, have to be kept
ready for use. ‘
In operation motor I4 will drive the pinion 55,
thereby rotating gear 56, rotor 51 and shaft 4|,
which in turn will drive the left-hand side of
the mechanism in unison with the right-hand
side thereof. Starwheels 49, .turning on shaft I“,
receive the can bodies delivered from chute 25
and feed them past the ?angingstation shown
by arc B-B, where, owing‘ to the action of cam
‘I5 and its follower, and the action of correspond
ing members in the other half of the machine,
plungers 6|, 6!’ advance the heads 62, 62’ and
the ?anges are gradually formed by bending the
metal back on the stepped beveled faces‘ 68, 69
and 68’, 69’, respectively, of these heads until it
receives the ?nal bends at B7, 67'. The can body
then passes the station shown in the lower part
of Fig. 4, where the plungers are illustrated in
idle position after having been retracted by the
action of return cams. The can bodies are then
fed out of the mechanism through the lower
chute over rails 44.
Other modes of applying the principle of our
invention may be
explained, change
mechanism herein
stated by any‘ of
employed instead of the one
being made as regards,» the
disclosed, provided the means
the following claims or-the
equivalent of such stated means be employed.
We therefore particularly point out and dis
tinctly claim as our invention:
1. In a ?anging machine, a frame includin
3.:In‘ a?anging machine, a frame; a rotor
mounted on said frame; a flanging member re
ciprocatively mountedon said rotor; means for
rotating said rotor; means for actuating said
?anging member during rotation of said rotor in
cluding, a cam; a frame member; means ~fdr
mounting said cam to said frame member in
cluding, a threaded shaft extending fromnone
face of said cam, said frame member having an
two spaced, parallel frame members, a rotor
mounted between said frame members; a ?ang 10 opening through which said shaft extends, a
sleeve internally and externally threaded and
ing member reciprocatively mounted on said
adapted to threadingly receive said shaft, said
rotor; means for rotating said rotor; means for
sleeve being threaded in said opening in said
actuating said flanging member during rota~
frame member, the pitch of the threads of said
tion of said rotor including, a cam, a frame
shaft and sleeve being such as to cause longi
member for supporting said cam; means for
tudinal ‘movement of said shaft and sleeve in the
releasably securing opposite ends of said frame
same direction through said opening when said
memberegto said parallel frame members, re
spectively, for selectively positioning said cam
in the frame and compression resistant means
sleeve is rotated for adjustably positioning said
cam; means for rotating said sleeve; a second
interconnecting said cam and a ?xed member of 20 .frame member to which said cam is secured; and
‘means for removably clamping said second frame
said frame, the last mentioned means being ex
member to said frame throughout a portion of
tendable and retractile and being disposed sub
stantially on a line projected through said arc
the'framealong which said second frame ,‘mem
and parallel to the axis of said arch ' I
her is ‘movable as the position of the cam is
2. In, a flanging machine, a frame; a rotor
mounted on said frame; a ?anging member re
ciprocatively mounted on said rotor; means for
rotating said rotor to carry the flanging member
in an arc; means for actuating said ?anging
member during rotation thereof through a por
tion of said are including, a cam; a frame mem
ber; means for mounting said cam, to said frame
member including, a threaded shaft extending
from one face of said cam, said ‘frame member
having an opening through which said shaft ex
tends, the center of said opening being disposed
substantially on a line projected through said
portion of said are and parallel to the axis of
said are, _a sleeve internally. and externally
4. In a flanging machine, a frame including,
a frame member adaptedlto be moved to a plu
rality of positions; means for securing said frame
member in said positions; a shaft journalled in
said frame member; a rotor mounted on said
shaft; a ?anging member carried by said rotor
and adapted to reciprocate relative to the rotor
and carried in an are when the rotor is rotating;
means for actuating said ?anging member in a
direction parallel to the axis of said are ‘during
rotation of said rotor including, a cam, said cam
beingsecured to said frame member; andcom
pression resistant means interconnecting said
cam and a?xed member of said frame, the last
threaded and adapted to threadingly receive said ~10, mentioned means'being extendable and retractile
and being disposed» substantially on a line pro
shaft, said sleeve being threaded in said opening
jected through said are parallel to the axis of
in said frame member, the pitch of the threads
of said shaft and sleeve being such as to cause
longitudinal movement of said shaft and sleeve in
the same direction through said opening when
said sleeve is rotated for adjustably positioning
said cam and means for rotating said sleeve.
said arc;
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