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Патент USA US2110479

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vMarch 8, 193%
2,110,479
D. wooD
CARTON BOTTOMING MACHINE
Filed Nov. 16, 1936
-
3 Sheets-Sheet 1 '
' ‘49W aroma,
£9.- ZJMML, Wyn/W6 iz '
March 8, v193s.
D. woob
2,110,479
CARTON- BOTTOMING MACHINE
Filed Nov. 16, 1936
3 ‘Sheets-Sheet 2
March 8, 1938.
D, WOOD v
2,110,479
CARTON' BOTTOMING MACHINE
Filed Nov. 16, 1936
5 Sheets-Sheet 3
27
Patented Mar. 8, 1938
2,110,439
UNITED STATES
ATE'E‘. OFFHQE
2,110,479
'GARTON BO-TTOMING MACHINE
Dennis Wood, Stanmore, England
Application November 16, 1936, Serial No. 111,116
In Great Britain November 18, 1935
5 Claims. '(Cl. 93—55.1)
This invention relates to cartons of cylindrical,
frusto-conical or other shape, made from paper,
cardboard or the like, and subsequently im
pregnated with wax or other proo?ng material
5
-to render the cartons liquid-tight.
I
The invention has for its object to provide an
improved machine for ?tting the bottoms to car
ton bodies, consisting of cylindrical, frusto
‘conical or other sleeves open at both ends, made
10 for example by folding or rolling blanks round
a mandrel and securing the overlapping edges
together by a longitudinal seam.
According to the present invention, the carton
bodies are fed into a drum ‘or rotor revolving in
15 termittently on a horizontal axis and provided
with a plurality of pockets to- receive the carton
bodies, which enter in a substantially horizontal
direction, for example on the rising side of the
drum, each carton being carried round to a posi- ,
20 tion where a bottom disc is inserted by a plunger
aligned with the pocket in that position, the disc
being secured in place if necessary by beading
rollers or the like brought into operation at a
later stage in the rotation of the drum, and the
25 "complete carton being ejected at a' subsequent
position of the drum, for example as the pocket
approaches the lowest position.
.
example by a continued movement of the trans
fer device,_the holder then returning to its in
itial position for receiving the next carton body.v
The invention is hereafter described with ref
erence to the accompanying drawings, in
which:--—
7
Fig. 1 is an elevation of the improved machine.
in one form of construction, an end plate being
removed;
Fig.’ 2 is a plan view thereof, part of the oper
ating mechanism being removed.
1O
‘Figs. 3, 4 and 5 are part-sectional elevations,
Figs. 3_ and 4 on a larger scale and Fig. 5 on a
still larger scale, showing details as hereafter
mentioned.
_
.
As shown in Figs. 1 ‘and 2, the bottoming ma
15:
chine may be conveniently located alongside a
forming machine which produces the carton
bodies to be ?tted with bottoms; the forming
machine is represented by a rotary standard 65,
the blanks being fed forward at one radial posi
tion, folded around mandrels 67 on the rotary
standard and carried round by, the mandrels
through about three-quarters of the revolu
tionof the standard, the formed sleeves being
delivered in a direction at right angles to the
feeding of the blanks,.by means of a transfer de
'In‘ the case of cylindrical or prismatic car
vice HI. 1 One of the formed carton. bodies or
tons and also pyramidal or frusto-conical car
sleeves is indicated at :r.
The bottoming machine comprises essentially
30 tons such as milk bottles, the bottoms will be in- .
serted in the ends projecting outwardly of the
drum or rotor, that is the wider ends of the
frus'to-conical bodies; but in the case of inverted
pyramidal or frusto-conical cartons such as the
cream, the, bottoms will be in
serted in the narrow ends of the bodies, that is
the ends lying inwards of the pockets in the
drum, the plunger being given a longer stroke,
35 ‘tubs employed for
“and the pockets if desired being provided with
40 ‘grooving means for producing a suitable seat
ing in the carton toretain the disc.
The drum is preferably provided with two or
a drum or rotor l9 revolving intermittently on
a horizontal axis under the control of a Maltese
cross or Geneva mechanism vI I, l2, this rotor be
ing provided with radial pockets Hi to receive the
carton bodies which enter horizontally on the
side nearest to the forming machine while the
rotor is momentarily stationary; the pockets are
arranged in pairs in radial alignment, two carton
bodies being fed simultaneously into place at
each momentary'stoppage of the rotor.
40
Between the forming and bottoming machines
there is arranged a holder l l2 having two part
more sets of pockets, which may be spaced in . conical rests or receptacles for carton bodies,
parallel planes along its axis, two or more car
45 T'ton bodies or sleeves being fed into horizontally
which is oscillated in relation to the movements
of the forming machine so as, to receive the bodies 45
aligned pockets at the same time. This may be
eiiected by passing the carton bodies from the
delivered from the'latter; when the holder has
received a carton body upon one rest, it rocks to
forming machine successively on to a sliding or
displace the carton b-odylaterally. The _ next
movement of the'transfer device Ill carries a
second carton body from the forming machine 50
on to the other rest of the holder I I2 and thence
by a continued movementinto a pocket It of the
rocking holder which is oscillated in relation to
"the movements of the forming machine and
adapted to take two or more of the carton bodies
as they are delivered singly from the machine;
when the holder has received its complement of
carton bodies, they are fed simultaneously into
55 "'the pockets of the bottoming drum or rotor, for
rotor l6, while at the same time the ?rst carton
body lying in the ?rst-mentioned rest of the
holder is carried into the adjacent pocket at 55 '
2
2,110, 479
the same level in the rotor, by the movement of
an auxiliary transfer device H3.. Thus the main
transfer device II I, which isslidably operated
by a link H4 from a lever H5 driven bya face
cam II 6 in relation to the forming machine,
If the bottoms are to be secured at the narrow
ends of the carton, as in the case of cream tubs
makes alternate short and long strokes, a short
and‘ the like, each plunger can‘ies the disc I5
stroke in order to carry a formed carton body
into the holder H2 and then’ a long stroke to
carry the next one over the other rest of the
right down inside the sleeve until it reaches a
point just short of the end, where a seating may
10 holder into a rotor pocket, while the ?rst body
is carried into the adjacent pocket from the
holder now occupying its laterally displaced posi
tion. The strokes of the two transfer devices
'15
2I through which the plungers I6 descend; the
webs are fed by means of rollers 22 driven bya
gear wheel 23 secured to the drum III.
be provided bythe inturnedrim of the sleeve
produced in the forming machine or by the step 10
or groove mentioned above.
, Fig. 3 shows more clearly the arrangement of
one of the vertical plungers I6, ?tted with an ‘
synchronize and may be produced by the same
cam H6, the auxiliary transfer device H3 being
operated by a lever I I1 secured to the rock shaft
H8. The oscillating movements of the holder’
outer sleeve 24 slidable ina ?xed guide barrel
25; the plunger is formed with a central passage 15
26 through which suction is applied to the lower
end when the plunger descends. This plunger is
H2 are produced by a bell crank lever H9 which » operated at its upper end by a lever 21 rocking
is pivoted at I26 and operated by a cam I2I on
'
20 the same shaft I22 as the face cam. I I6. '
' The pockets I3 are shown as of frusto-conical
shape, to suit the shape of the carton bodies or
sleeves m, but if desired the pockets may be-made
pyramidal or prismatic, to receive frusto-conical
25 or cylindrical bodies which are then pressed to
pyramidal or prismatic shape by the entrance
of a correspondingly shaped mandrel after'the
bodies or sleeves have been carried into place‘ by
the transfer device.
_
Y
"
,
_
Any number of pockets may be provided, for
example sixteen arranged in ‘pairs, the drum III
then moving through 45 degrees at each step
of its intermittent rotation; by providing the
two‘sets of pockets, fed by the oscillating holder
35 and transfer devices, the speed of rotation of the
drum I6 can be halved as compared with that
of a forming machine producing eight carton
‘bodies at each revolution, so as to allow more
upon a pivot 28 under the control of a second
lever arm 29 having its roller-?tted end engaged 20
by a cam 30. The sleeve 24' is operated by a
lever 3I pivoted at 32, the end of this lever being
connected by a link 33 to a rocking lever 34 oper
ated by a link 35 from a bell crank 36 having its
roller-?tted end engaged by the same cam 30, as
seen in Fig. 1. The web of paper or the like
passes between the bottom of the barrel 25 and
a ?xed ring die 2I so that the downward move
ment of the sleeve punches out a disc of paper,
which is then carried down by the descending 80
plunger I6 into the carton body .1 supported in
the pocket I3. A pair of caps 38 facing the inner
ends of the two vertical pockets in this position,
are mounted on a lever 39 operated by a cam 46
upon the driving shaft H of the Maltese cross 85
mechanism; each cap 38 comprises a central plug
42 which formsa stop for the disc when inserted
by the plunger I6, thuspreventing any distortion
time for the operations necessary in inserting. at the bottom of the carton. At the next posi
and securing thebottoms of the cartons. If de
sired, the speed of the bottoming machine can
be further reducedby providing three or more
sets of pockets I3,‘ for example twenty-four pock
ets in threes, the holder and transfer devices then
45 having a three-fold motion.
Assuming that the drum is provided with eight
pairs'of pockets, and rotates through 45 degrees
at each step, the?rst position of the pockets I3
will allow of receiving two sleeves 'ifmm the
forming'machine, these sleeves being fed axially
and in a substantially horizontal position, one
‘ directly from the forming machine and the other
from the rocking holder, into a pair of pockets
I3 occupying horizontal positions on the side of
the drum III which is in the course of its upward
movement;
.
V
I
v
.
.If the carton bodies are to be formed with,
steps or grooves to receive and locate the discs
tion, the wide end of each carton body, project
40
ing outside the pocket I3, is‘ inturned by means
of beading rollers 43 (see Fig. 4) mounted upon
a rotary head 44 advanced in a radial direction
towards the drum, the spindle 45 of the rotary
head being driven by an electricmotor 46 through
a pinion 41 and gearwheel 48; the latter has wide
teeth to allow for the axial movement of the
spindle which is produced‘ by a bell crank lever
49 of which the roller-?tted end engages with
the cam 36.‘ The intumed portion of the carton so
body is smoothed at the next or ?fth position by
a rotary plunger 50, which co-operateswith a
circumferential groove 5I in the wall of the pocket
.to produce a step or recess intended to accom
modate a closure or sealing disc when the carton 65
has been subsequently ?lled,
.
Fig. 5 shows more. clearly the arrangement of >
one of these rotary plungers; the spindle 53, slid-r
constituting the bottoms of, the cartons, these ably journaled‘ in guides 54, carries a rotary head ,
steps may be formed when pushing the sleeves. 55 having’ a pair of grooving rollers 56. This
into the drum by means of the transfer device
I I I, or at the next position-of. the drum by sepa
rate punches I4 acting obliquely at an angle of
45°. Again, the punches at this second position
can be utilized to force the carton bodies down
into the pockets I3 if'the shape is to be modi?ed
to conform» to- the pockets as mentioned above,
the. ends of the bodies being‘in all‘cases of cir
cular shape. At thethird position, which is .at
the top of the drum, two discs I5, made of paper
or cardboard, are pushed down into the respec
tive carton bodies by vertical plungers I6, which
act as punches to cut out the discs from two webs
spindle, which is fed. forward by the lever 51 operated'by a cam 58, is ?tted with a loose cone
59 at its extremity, thiscone holding the carton
body tightly inside the pocket I3 while the spin
dle 53 ‘driven by the motor 66, causes'the groov
ing rollers 56 to run round the open end of the
carton body and thereby produce the step or
recess therein. The‘rollers are opened out against
the carton body by a cone 6| slidable in the inte-.
rior of the spindle 53 by a second cam-operated 70
lever 62, the rollers being normally held inwards
by springs 63; heating coils 64 supplied with
current by slip rings 65, may be mounted on
the rotary head, as shown.v At the seventh posi
I'I, I6 of paper or like material drawn from sepa
ratestorage reels I9, 26 and fed across ring-dies 7 tion the cartons are ejected vertically downwards
3
2,110,479
by plungers 66 working inside the drum and
engaging the narrow ends of the cartons; these
plungers are operated by levers 61, 68 and a link
69 from the cam 10 upon the driving shaft M,
pushing out the cartons on to a conveyor ‘H
which transfers them to the waxing or proo?ng
apparatus.
If however the bottoms are to be secured at the
outer or wide ends of the cartons, as in the case
10 of milk bottles and the like-each plunger “3 at
taneously with the feeding of a carton body into
a pocket of a different set by said transfer device,
and means for inserting a plurality of discs simul
taneously into said carton bodies at a subsequent
pause in the rotation of said rotor.
3. A carton bottoming machine comprising a
rotor mounted for intermittent rotation on a 10
the third or top position of the drum Ill forces
the disc l5 only into the Wide end of the carton
horizontal axis, said rotor having radially dis
posed pockets adapted to receive carton bodies,
body, this disc being preferably ?anged in the
well known manner by the ring die 2|, and the
disc being secured in place by rolling down the
said pockets being arranged in a plurality of sets
in parallel planes transverse to said axis, means
for feeding a carton body directly into a pocket
rim of the sleeve by means of suitable rollers at
one or more of the positions designated fourth,
?fth and sixth. During or after the rolling oper
ation, pressure may be applied in a radial direc
tion so as to provide a neat ?nish to the rim of
the carton. Ejection takes place at the lowermost
position, as in the previous case, by cam-operated
plungers engaging the narrow ends of the cartons.
The various operations are controlled so as
occupying a horizontal position during a pause
in the rotation of said rotor, auxiliary means for
feeding another carton body into a pocket of a
different set occupying a horizontal position on
the same side of said rotor during said pause,
said auxiliary means including a holder for carton
bodies, said holder receiving a carton body from,
said feeding means alternately of its direct feed
ing into said rotor, and a device operating in
to take place in proper relation to the rotation
timed relation to said feeding means for trans
of the drum l0, suitable operating cams being
ferring a carton body from said holder into said
secured as already mentioned upon the driving
shaft 4|, which may itself be driven through
pocket of a different set, and means for insert
ing a plurality of discs simultaneously into said
carton bodies during a subsequent pause in the
rotation of said rotor.
30
4. A carton bottoming machine comprising a
bevel wheels 12 by the same shaft as the forming
30 machine in order to- maintain regularity of out
put. After the bottoms have been ?tted in the
carton bodies, the latter are impregnated with
wax or other proo?ng material, being then ready
for ?lling and subsequent capping by means for
example of a sealing disc pressed into place upon
the internal step formed by the plunger after
the inturning of the narrow end of the carton
body in the forming machine.
> What I claim is:
40
holder after receipt of each carton body, and an
auxiliary device for transferring a carton body
from said holder into a pocket of said rotor simul
l. A carton bottoming machine, comprising a
25
rotor mounted for intermittent rotation on a
horizontal axis, said rotor having radially disposed
pockets adapted to receive carton bodies, said
pockets being arranged in a plurality of sets in 35
parallel planes transverse to said axis, means for
feeding a plurality of carton bodies into pockets
occupying horizontal positions in different sets
during a single pause in the rotation of said rotor,
said feeding means including a transfer device 40
rotor having radially disposed pockets adapted
having alternate long and short strokes, the long
to receive carton bodies, said pockets being lo
cated in sets in parallel transverse planes of said
rotor, means for rotating said rotor intermittently
strokes of said transfer device feeding said carton
bodies directly into said rotor, a holder for car~
ton bodies, the short strokes of said transfer de
on a horizontal axis, means for feeding open
vice feeding said carton bodies into said holder, 45
and an auxiliary device for transferring carton
bodies from said holder into said rotor, and means
for inserting a plurality of discs simultaneously
into said carton bodies during a subsequent pause
in the rotation of said rotor.
5. A carton bottoming machine comprising a
ended carton bodies into a plurality of said
pockets occupying horizontal positions on the
same side of said rotor during a pause in the in
termittent rotation of said rotor, said feeding
means including a holder for said carton bodies,
a transfer device for bringing carton bodies singly
into said holder, and auxiliary means for trans
ferring a carton body from said holder into a
pocket of said rotor simultaneously with the
feeding of a carton body into a pocket of another
set by said transfer device, means for inserting
discs simultaneously into a plurality of said
carton bodies at a subsequent position of said
rotor, and means for ejecting a plurality of said
(SO carton bodies simultaneously from pockets oc
cupying vertical positions at the bottom of said
rotor.
2. A carton bottoming machine comprising a
rotor mounted for intermittent rotation on a hori
zontal axis, said rotor having radially disposed
pockets adapted to receive carton bodies, said
pockets being arranged in a plurality of sets in
parallel planes transverse to said axis, means for
feeding a plurality of carton bodies into pockets
70 occupying horizontal positions in different sets
during a single pause in the rotation of said rotor,
said feeding means including an oscillating holder
adapted for alinement with pockets in different
sets, a transfer device for bringing carton bodies
75 singly into said holder, means for shifting said
rotor mounted for intermittent rotation on a hori
zontal axis, said rotor having radially disposed
pockets adapted to receive carton bodies, said
pockets being arranged in a plurality of sets in
parallel planes transverse to said axis, means for
feeding a plurality of carton bodies into pockets
occupying horizontal positions in dilferent sets
during a single pause in the rotation of said
rotor, said feeding means including a transfer de 60
vice having alternate long and short strokes, the
long strokes of said transfer device feeding said
carton bodies directly into said rotor, a holder
for carton bodies, the short strokes of said trans
fer device feeding said carton bodies into said 65
holder, means for oscillating said holder between
positions alined with respective pockets of differ
ent sets in said rotor, and an auxiliary device for
transferring carton bodies from said holder in
one of its positions in the pocket alined with said
position, and means for inserting a plurality of
discs simultaneously into said carton bodies dur
ing a subsequent pause in the rotation of said
rotor.
DENNIS WOOD.
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