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Патент USA US3085771

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April 16, 1963
H` SUBKLEW
>3,085,762
ROLL CHANGING APPARATUS
ATTORNEY
April 16, 1963
`
H. SUBKLEW
3,085,762
ROLL CHANGING APPARATUS
Filed Jan. 26, 196Ö
'
l
2 Sheets-Sheet 2
2li/MM»
AT TUR/VE Y
United States Patent O MICC
3,ä5,762
Patented Apr. 16, 1953
2
.
In accordance with another feature of the invention,
3,085,762
RUEJL QHANGHNG APPARATUS
Hermann Subidcw, Neuwied, Rhineland, Germany, as
signer to Berni-ey Machine Company, Kansas City, Mo.,
a corporation of Missouri
Filed Jan. 26, 19530, Ser. No. 4,734
Claims priority, applicati-nn Germany Feb. 5, i059
3 €laims. (Cl. fm2-Sti)
This invention relates to an apparatus for changing
rolls of patch material in a machine for use in the pro
duction of window envelopes or the like.
For example, in the course of manufacture of window
envelopes, the window or patch material is continuously
angular brake levers are provided which are pivoted to
the aforesaid carrier so as to bear ywith their free ends
to supply tension on the circumference of each of the
supply rolls. When the roll which is in use becomes
almost exhausted, its brake lever, owing to its :angular
disposition, contacts an electric switch and thereby closes
a circuit of an electric signalling device.
The accom
panying drawings illustrate the invention 4by Way of ex
ample, and only those parts of an envelope machine are
shown to enable an understanding of the invention.
in the drawings:
FIG. l is a side elevational view of a portion of a
window envelope making machine equipped with an ap
paratus for changing rolls of web material while the ma
drawn in the form of a web from a roll, and when the
rolly is depleted a new roll must be applied in the ma
chine is in operation, parts of the apparatus being shown
chine.
in section and other portions broken away to better illus
l
Window envelope machines prior to the present in
trate the invention.
FIG. 2 is an enlarged sectional view through the web
vention have provision for only one roll from which the
window material is supplied. Consequently, when the 20 feeding and cutting portion of the apparatus of FIG. l,
showing the feed of the web from Ia new roll into the
material of this roll is exhausted, the machine must be
machine and the knife being released `for cutting the web
stopped so that the nearly depleted roll can be removed
of the nearly depleted roll.
and replaced -by a new one. The new roll must be
properly set up before the material from it can be drawn
FIG. 3 is a perspective view of the upper feed roller
into the feeding device of the machine, and proper set 25 and the rocker carrying the pressure rollers by `which
the end of the new web is fed between the feed rollers.
up of the new roll requires considerable skill and time,
FIG. 4 is a front view of the apparatus for changing
during which the machine is not producing envelopes.
Assuming such exchange of rolls requires only ten min
the rolls of patch material, the knife guide being par
tially in section to better illustrate the cutting mecha
utes and the output of the machine to be 300 envelopes
a minute, this would mean a loss in production of 3,000 30 nism for severing the web from the nearly depleted roll.
HG. 5 is an enlarged fragmentary section on the
envelopes, to which must be added a considerable amount
of waste of 4envelope making materials until the ma
line 5-5 of FIG. l.
'
chine is again working satisfactorily. The conventional
FlG. 6 is a perspective view of the knife guide, knife
window envelope making machines require replacement
holder, and knife, shown in disassembled, spaced rela
of -rolls >about every two to three hours, and each time
tion.
FIG. 7 is a perspective view of the latch for the knife
multiplies the loss in production that has just been enum
erated. Another drawback is that after the machine is
restarted, the attend-ant must pay full attention to see that
holder and the connecting link for automatically operat
ing the latch.
B1G.y 8 is a cross section through the web cutting
the gumming devices and the printing sets, as Well as
other parts of the machine, are operating satisfactorily. 40 mechanism on the line S-S of FK?. 5 ,
FIG. 9 is a similar section on the line 9~9 of FIG. 5.
Therefore, the present invention is to provide a roll
exchanging device which will enable a Window envelope
FiG. l0 is a wiring diagram of the signal circuit.
making machine to run practically without any inter
Referring more in detail to the drawings:
ruption, and thus to avoid the losses and other disad 45
i and Zdesignate the side frames of a window envelope
making machine to which the roll changing apparatus
vantages that have just been described.
of the present invention is applied. The roll changing
In accordance with the present invention, the device
for uninterrupted exchange of the supply rolls consists
apparatus generally indicated by the numeral 3 includes
of a pivoted carrier for a plurality, preferably two, of
brackets 4 and 5 that are mounted on the side frames
window material supply rolls, so that when one is in use
the other remains in readiness for use when the ñrst roll
is exhausted, or nearly so.
The invention also consists in the provision of means
for the introduction of the web of material from the new
i and 2 of the envelope making machine.
Rotatably
mounted in the upper ends of .the brackets is a main
transverse shaft 6 supporting a roll carrier 7. Fixed on
the shaft 6 are spaced apart bars 8 and 9, each provid
ing oppositely directed arms l0 and ill. The ends of the
roll between the feed rollers of the machine, and, further, 55 arms i0 andv 11 are perferably provided with split bear
ings d2 and i3 for removably mounting transverse rods
in a device for automatically severing the web of material
i4 and l5 that carry centering cones 16-1’7 and 18;-19
from the spent roll during the introduction of the web
for mounting rolls 20 and> 21 of patch material in the
from the new roll between the said yfeed rollers.
form of continuous websZZ and 23.
v
The device `for introducing the web of material from
The rolls 20 and 2l are under control of brake mech
the new roll is preferably made to include one or more 60
anisms ‘2d and y2.5, respectively, to regulate tension of the
pressure rollers by means of `which -both webs are lapped
web material and to actuate a signal for indicating when
one -upon the other and pressed against one of the feed
rollers of the machine.
o
The :arrangement for automatically severing the web
coming from the spent roller preferably consists of a
knife which is guided in a longitudinally slotted tube.
The knife is held in its inoperative position by means of
a roll is to be changed, as later described. vThe brake
mechanisms are carried on’ shafts 26 and 2’7 diametrically
disposed at opposite edges of the bars S and 9 with ends
thereof oscillatably mounted in ears 2S and Z9. Fixed
on the shafts 26 and Z7 are brake levers 30 and 31
having substantially flat outer ends 32 and 33 adapted to
bear on the circumferential faces of the respective rolls
feed rollers, or one of them, the latch is released and 70 20 and Zi under action of coil springs 34. The springs
34 are sleeved on the respective shafts 26-27~ One
the knife is projected under the action of the spring
end of each spring is attached to an adjacent bar 8 or 9
through the web of material.
a latch against the action of `a spring, `and means is pro
vided which, when the pressure rollers press against the
3,085,762
3
and its opposite end attached to a collar 35, there being
a collar 35 suitably fixed to each shaft 26-27 in a
manner for applying a winding torsion in the springs
for pressing the flat ends of the brake levers 3i? and 31
in yielding contact with the circumferential faces of the
rolls, as shown in FIGS. 1 and 4.
The shafts 26 and 27 extend through the ears 28 and
29 and each shaft carries a collar 36 having a radially
extending pin that forms `a part 37 adapted to close con
tacts of a switch 38 or ‘39.
4
be moved to cooking position with respect to a latch 83,
to hold a coil spring 34 in compression. When the latch
83 is released, the spring expands to drive the knife
holder across the guide and into snubbing Contact with
a counter-spring 85 which is positioned within the opposite
end of the tubular guide. The springs 84 and 85 are
backed by plugs S6 and 87 that close the ends of the
guide (FIG. 5). In order for the latch 83 to engage
the holder, a side of the tubular guide has a cross slot
The switches 38 and 39 are 10 38 that registers with a groove 89 in the holder, as shown
mounted on opposite diametrical portions of the bar 9.
Only one of the switches is shown in FIG. 1, since the
other is hidden by the bracket 5, however, both switches
and shafts 26 and 27, along with the pins 37 and brake
levers, are shown in the diagrammatic FIG. l0.
Fixed in insulated relation on the transverse shaft 6,
preferably at the side of the carrier adjacent the switches,
are collector rings 4E) and 41, and bearing thereon are
brushes 42 and 43 (FIG. 10), for connecting the switches
in FIGS. 6 and 9. The latch 83 is pivotally mounted on
a pin 90 so that one end 91 is in position to swing through
the slot 8S and engage in the groove 39 and the opposite
end is in position to connect by a pivot pin 92 with a
link 93 by which the latch is automatically operated in
opposition to a spring 94 which acts to effect engage
ment of the latch with the knife holder. In order to
actuate the link by the rocker 66, the end of the rocker
carries a laterally projecting pin 95 upon which the free
in a circuit 44 with a source 45 of electrical current. 20 end of the link is adapted to bear (see FIGS. l and 2),
and to support the link so that a shoulder 96 of the link
Also connected in the stationary part of the signal circuit
is a signal device 46 that is adapted to be energized when
either one of the switches is closed by a respective brake
lever, as later to be described.
is adapted to be contacted by the pin to effect recipro
cation of the link and release of the latch. The rocker
66 is preferably provided with a handle 97 to facilitate
The roll carrier is adapted to be manually rotated in 25 rocking thereof.
The apparatus just described is operated as follows:
the hearings of the brackets 4 and 5 by an actuating
Assuming the roll 2€) to have been in the position of
mechanism 47, including a worm gear 48 fixed to an out
the roll 21 in FIG. l, with its web of window material
wardly projecting end of the shaft 6 and which meshes
'22 traveling underneath the guide roller 65 and between
with a worm 49 on a transverse shaft Sil having its ends
journaled in ears 51 and 52 on the outer side of the 30 the two feed rollers 59-60 into the envelope machine,
and that the roll 20 has been nearly worked up in the
bracket 5, as bcst shown in FIG. l. One end of the worm
shaft 50 carries a hand wheel 53 by which the worm is
course of operation of the envelope making machine, the
diameter of the roll 20 has become so small that the
rotated to rotate the carrier for positioning one of the
rolls for feeding web therefrom into the envelope making
brake lever 39, which resiliently rests on the circum
machine through a feed mechanism 54, also forming a 35 ference of the roll, closes the switch 38 under action
part of the present invention.
of the spring 34. Closing of the switch 38 actuates the
signal 46 to indicate to the attendant of the machine
that the roll 20 will soon be depleted. The attendant,
who has previously placed the full roll 21 on the carrier,
mechanism, not shown, of the envelope making machine.
Journaled in the extensions 55 »and 56 are upper and lower 40 now turns the carrier by means of the hand wheel 53,
shafts 57 and 58 carrying feed rollers 59 and 60 which
worm 49 and worm gear 48. During this manipulation
are rotated together in counter rotation to feed the web
of the carrier, the web 22 from the roll 20 continues to
material therebetween in synchronism with operation of
run uninterruptedly into the machine, now taking its
the patch applying mechanism through a gear 61 (FIG.
way over the tubular guide 76 of the cutting mechanism.
4). The gear 61 meshes with a gear 62 on the shaft 58
The attendant draws a short length of the web 23 from the
to drive the lower feed roller and the gear 62 meshes
roll 2t) and leads it between the moving in web 22 and
with a gear 63 on the upper shaft 57, as best shown in
the guide roller 65, as marked by the dot and dash line
FIG. 4, to drive the upper feed roller. Also mounted
in FIG. l. By carefully turning the roll 21, the end of
in the extensions 55 and 56 forwardly of the lower feed
the web 23 is readily advanced as far as a short distance
rollers 59 and 6€) is a shaft 64 carrying a guide roller 65
1n front of the line of Contact of the feed rollers 59 and
under which one or the other webs, and at times both
6i), where it stops on account of the friction on the roll 21.
of the webs, is passed to the feed rollers 59 and 60.
When the web 22 of the roll 20 is exhausted to the
The feed mechanism 54 includes side members 55 and
56 that may be rearward extensions of the patch applying
In order to start the web from a new roll, the shaft 57
point where only a few turns or winds of the web re
of the upper feed roller pivotally carries thereon a rocker
main in the roll, the pressure rollers 74 and 75 are
66, best illustrated in FIG. 3. The rocker 66 is shown 55 brought into contact with the end of the web 23 and the
as including a plate 67 having depending ears 68 and 69
web '23 into contact with the web 22., so that both webs
at the ends thereof that are journaled on the shaft 57 at
are. ñrmly pressed against the feed roller 60. This is
the ends of the feed roller 59. One edge of the plate 67
easily accomplished by swinging the hand lever 97 in the
projects rearwardly from over `the feed roller 59 and
direction of the arrow “A” (FIG. l). At the same time
carries spaced apart arms '70 and 71 which terminate 60 the latch 83 is retracted from the groove 89 of the knife
in yokes 72 and 73 carrying pressure rollers or wheels
holder and slot S8 of the tube 76 to release the knife
74 and 75 that are adapted to make contact with the
holder 80- upon contact of the pin 95 with the shoulder
portion of the web that is carried over the periphery of
96 of the link 73. The spring 84, which has been held
the lower feed roller 6i), as later to be described.
under compression7 is now free to project the knife holder
Also carried between the extensions 55 and 56 for
80 together with the knife 81 along the slot 78, thereby
wardly of the guide roller 65 is the cutter mechanism.
severing the web 22 from its supply roll, while the
envelope making machine continues to run. The envelope
76 having its ends fixed within openings 77 of the ex
making machine now draws its further supply of window
tensions. The tubular guide 76 is provided on the upper
material from the roll 21. The remnant of the roll 20
side thereof with a longitudinal slot 78 and at the rear 70 is removed and a new roll is applied between the center
side thereof with a similar slot 79. Reciprocably mounted
mg cones 16 and 17, ready for the time when the signal
within the tubular guide is a holder 80 carrying a knife
46 indicates depletion of the roll 21, whereupon the
or blade S1 that projects through the longitudinal slot
operations are repeated.
The cutter mechanism includes a transverse tubular guide
78. The holder S0 also carries a handle 82 that projects
laterally through the slot 79, wherewith the holder may
It is obvious that the cutoff of the web from the rem
nant web 22 is at a point spaced from the feed rollers
3,085,762
5
6
59 and 60, therefore the remnant web is gripped by the
running web, means for shifting the roll carrier to an
other position when the roll nears depletion with the web
running over the knife guide to the guide roll-er and to
bring a new roll into the position previously occupied
feed rollers to form a support for the end of the web 23,
so that it is guided thereby into the envelope making
machine.
lIn this way the exchange of an empty or nearly de
pleted roll for a new one is carried out without stopping
the machine. The waste entailed in the short interval
in which two webs of a window material are fed at the
same time is usually a length of -about 150 mm. This
length is practically negligible, in that it 4amounts to
about ten envelopes as compared with about 3,000 in
previous methods.
by the nearly depleted roll whereupon the end of the web
from said new roll is threaded between the running web
and the guide roll where it is stopped short of the co
operating peripheral faces of said feed rollers, pressing
means, means mounting the pressing means for swinging
movement about the axis of the upper feed roller to
bring said end of the web from said new roll into posi
tion to pass the upper of said feed rollers and for press
ing said end of the web against the web running from
the nearly depleted roll for movement therewith, a spring
but that it may be changed if deemed necessary for 15 tensioned knife carried by the knife guide, means for
It is to be understood that the invention is not to be
restricted to the specific embodiment shown and described,
latching the knife in the guide at one side of the web
that is then running over the knife guide, and a lost
motion connection between the means mounting said
pressing means and said latch mechanism to release the
1s:
1. Apparatus for supplying web from the roll into a 20 knife for severing the running web on final movement
of the press-ing means.
machine utilizing the web, said apparatus including
3. Apparatus for supplying web from the roll into a
counter rotating feed rollers, one of said feed rollers
convenience or to suit requirements, without thereby
departing from the scope and meaning of the claims.
What I claim and desire to secure by Letters Patent
being in slight advance of the other roller and said
feed rollers having peripheral faces cooperating to ad
machine utilizing .the web, said apparatus including
‘counter rotating feed rollers, one of `said feed rollers
vance a running web therebetween into the machine, a 25 being in slight advance of the other feed roller and
said feed rollers having peripheral faces cooperating to
guide roller in advance of the feed rollers to guide the
advance a running web therebetween into the machine,
running web thereunder and over said one feed roller,
a guide roller in advance of the feed rollers to guide
a carrier for supporting a plurality of rolls of web and
the web thereunder and over said one feed roller, a
having one position for carrying one roll in a position
for the web therefrom to pass under the guide roller 30 carrier for supporting a plurality of rolls of web and
having one position for carrying one roll in a position
and between the feed rollers, web severing means for
to pass the web therefrom under the guide roller and
cutting off the running web and spaced from the feed
between the feed rollers, means for shifting the roll
rollers in a direction toward said carrier, a transverse
carrier to another position when said one roll nears deple
guide carrying the severing means normally out of con
tact with the web, means for shifting the roll carrier to 35 tion and to bring another roll into the position previous
ly occupied by the nearly depleted roll whereupon the
another position when said one roll nears depletion with
end of the web from the new roll is threaded between
the web running over the transverse guide and to bring
the running web and the guide roller where it is stopped
a full roll into the position previously occupied by the
short of the cooperating peripheral faces of the feed
nearly depleted roll whereupon the end of the web from
the full roll is threaded between the running web and 40 rollers, pressing memls, means mounting the pressing
means for movement over the advanced feed roller to
the guide roller where it is stopped short of the co
press said stopped end portion of the web against the
operating pheripheral faces of the feed rollers, pressing
means, means mounting the pressing means for move
ment of the pressing means into pressing contact with
runing web at the point of contact with the advanced
feed roller to pass said end of the web between said
the end portion of said stopped web to -bring the 45 feedrollers, and a severing mechanism for cutting off
the running web and spaced from the feed rollers in a
end of said web into position to pass with the run
direction toward said carrier to provide a tail portion
ning web between said feed rollers, and a connecting
of the running web for prolonging the engagement by
means between the means which mounts the pressing
the feed rollers with the running web to support said end
means and the web severing means to effect severance
of the running web at the time said end of the web 50 portion of the new web by the running web during feed
thereof into the machine.
from the full roll is engaged with the feed rollers.
2. Apparatus for supplying web from the roll into
References Cited in the file of this patent
a machine utilizing the web, said apparatus including
upper and lower counter rotating feed rollers, the lower
UNITED STATES PATENTS
of said feed rollers being in slight advance of the upper 55
794,577
Wood _______________ __ July 11, 1905
feed roller and said feed rollers having peripheral faces
1,899,185
Di Ianni ____________ __ Feb. 28, 1933
cooperating to advance a running web therebetween into
2,047,280
Melnick _____________ __ July 14, 1936
the machine, a guide roller in advance of the feed
2,613,042
Dice ________________ __ Oct. 7, 1952
rollers, a carrier for supporting a plural-ity of rolls of 60 2,718,362
Piperoux et al. _______ __ Sept. 20, 1955
web and havin-g one position for carrying one roll to
pass the web therefrom directly under the guide roller
and between the feed rollers, a knife guide extending
transversely of and normally out of contact with the
2,724,426
2,930,664
2,940,507
2,974,839
Bell et al. ___________ __ Nov. 22, 1955
Liebisch ____________ __ Mar. 29, 1960
Butler ______________ __ June 14, 1960
Batlas et al. __________ __ Mar. 14, 1961
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