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Патент USA US2409066

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om, s, 1946.
' E. E. Pom.
2,409,065
„
END LABELING MEGHANISMy
Filed Jan. 24, 1945
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2,409,065
END LABELING MEGHANISM
Filed Jan. 24, 1945
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Oct. 8, 1946.
2,409,065
E. E. POHL
END LABELING MECHANISM
Filed Jan. 24, 1945
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INVENTOR.
Q1 ¿kA/E57' EPs/72
BY
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W
Y ¿Traa/KEY
Patented ‘Oct 8, 1946
2.409,@65
UNTED STATES PATENT osi-‘lcs
2,409,065
END LABELING MECHANISM
Ernest E. Pohl, Elmhurst, N. Y., assignor to Amer
ican Machine & Foundry Company, a corpora-
‘
tion of New Jersey
Application January 24, 1945, Serial No. 574,380
9 Claims.
(Cl. 164-49)
l
Z
This invention relates to mechanisms for ap
plying labels to the ends of packages, more par
ticularly to improvements in the construction of
feed roll shown in Figs. 3_5 being omitted and
the lower knife being shown in retracted posi
the knives or cutters thereof which coact to sever
a label from a web of label material.
In one type of labeling mechanism illustrated
in the Weida Patent 2,349,317, issued May 23, 1944,
the labels were severed from the web by the
coaction of a stationary vertical knife provided
with a cutting edge on its lower end and a hori
zental knife swinging about a vertical axis. Due
to the presence of the thermoplastic coating pro
vided on the web to obtain adhesion of
the severed labels to the end folds of the packages,
tion;
’
Fig- 2 is a similar view showing the knife inl
cutting position;
Fig. 3 is an elevation of the label-cutting mech
anism viewed from line 3-3 in Fig. l;
Fig. 4 is an elevation of the same viewed from
line 5.--5 in Fig. l;
v
Figs. 5 and 6 are cross-sections of the label
cutting mechanism taken on the lines 5_5 and
S-S of Fig. 1, the label applier head being omitted
in Fig. 5;
Y
Fig. 'l is a view similar to Fig. 6, the. lower knife
thermoplastic material gradually accumulated
being shown in depressed position in Fig. 7 and
adjacent the cutting edge of the vertical knife to
in its cutting position in Fig. 6.
Referring to the drawings, it should be under
an extent suñicient to interfere with the feeding
of the web downwardly between the cutting edges
stood that two labeling mechanisms are placed
of the knives.
opposite each other on the sides 'of a wrapping
machine in positions adjacent the ends of pack
One of the main objects of the invention is to
ages delivered from the folders of the wrapping
provide a novel mounting for the stationary knife
which will permit it to be readily detached for
machine.
Referring to Figs. 1 and 2 of the drawings, a
cleaning any accumulations cf thermoplastic ma
bracket I0 is secured to one of the adjustable side
terial picked up from the web, or for sharpening.
F01` this purpose the stationary knife maybe pro 25 fra-mes l2 of the wrapping machine. On the
lower end of a shaft »i4 projecting downwardly
vided with spaced pieces having half round holes
from the bracket lll is pivoted an applier arm i5
which ñt on a stationary rod and one corner of
which is operated by a connecting rod i6 from a
the stationary knife rests on one face of the mov
cam lever (not shown). Since the construction
able knife. The movable knife may be carried by
a member pivotally mounted on an adjusting 30 of the cam lever and cam for operating rod I‘ü is
screw carried by a swingable arm and urged by
a torsion spring into engagement with the cut
illustrated in the Weida Patent 2,349,317, further
description thereof is deemedl unnecessary. On
ting edge of the stationary knife.
arm l5 is secured a platen or label applier head
i8 which'is provided with an electrical heating
By adjust
ment of the torsion spring the tension of the mov
element (not shown). The platen4 i8 is thus
able knife against the stationary knife may be
heated to cause adhesion of the thermoplastic
regulated, so that the severing of the web of label
material will be performed properly. Moreover
coating of the label to the wrapper folds of the
package.
~
some torsion springs may be weaker than others
and adjustment of the torsion spring can be
On the lower end of a vertical stud` 2li pivotally
made to assure the proper cutting of the label. 40 mounted in the bracket li) is fastened an arm
Upon depressing the movable knife, the station
2l. A tension spring 22, which is connected at
ary knife may be removed or replaced.
one end tc arm 2l and anchored at its other end
Another object of the invention is to provide
a device for depressing the lower knife to permit
on a bracket 2li, which is similar to the bracket
5G shown in the above'- mentioned Weida patent
andv similarlyV projects from a housing (not
shown), urges arm 2l against a stop screw 2E
removal or installation of the stationary knife.
With these and other objects not specifically
mentioned in view, the invention consists in cer
tain constructions and combinations hereinafter
threadedl in a nut 28 secured to frame I2. A cam
fully described and then set forth in the appended
tical face on arm 2l andserves to displace arm
roller 29 on a post 39 of arm l5 engages a ver
claims.
50 2l to the position shown in Fig. 1 when arm l5
is retracted with platen I8 by the connecting
In the accompanying drawings which form a
part of this specification and 'in which like char
rod I6.
‘
acters of reference indicate the same or like parts:
In a lug 3l formed on the upper face of arm
Fig. 1 is a plan view of an improved label-cut
2l is threaded a screw 32 which is secured therein
by a set screw 33. On screw 32 is. pivotally sup
ting mechanism exemplifying my invention, the
2,409,065
3
4
ported a bifurcated plate 34 to which is fastened
gear 13, which is secured to feed roller 15 and
the lower knife 3S. One end of a torsion spring
49, which is secured at one end in the head of
screw 32, underlies and urges knife 36 upwardly
loosely mounted on stud 1I, is driven by a gear
(not shown) corresponding to the gear 41 of said
Weida Patent 2,349,317 which is driven by mecha
nism disclosed in said patent.
against the cutting edge of a stationary knife 42,
as shown in Fig. 5. Upon unloosening the set
The packages P, after the rear end folds, top
endfolds, and frontend folds of their wrappers
have been folded over the endsof the loaf of bread
screw 33 and turning the screw 32 the tension
of the knife 35 against knife 42 may be regulated,
The knife 42 has secured to its outer face
or other article by folders (not shown) are ad
a pair of spaced pieces 44 which are provided 10 vanced past a pair of heated sealer plates 14
arranged to engage and heat seal the overlapped
with half round holes which fit over a rod 43
end folds of the wrapper of the advancing pack
ages. Each of the sealer plates 14 has a diagonal
edge 15 spaced from the edge of a folder plate 1B
24 by screws 50, and the heads of screws 50 serve
as stops for the knife 42 when it is swung inwardly 15 to provide a slot into which the bottom end fold
carried by the brackets I3 and 24. A 'stationary
guide plate 43 is secured to the brackets IQ and
of the wrapper enters and is folded upwardly
to the position shown in Figs. 5 and 6, A lever
52, which is fulcrumed on the upper end of the
against the previously folded end folds. Waxed
paper is commonly used for the wrapping mate
rial and when the overlapped end folds are ad
tive position shown in Figs. 5 and 6. Lever E2 is 20 vanced past plates 'E4 they are heated sufficiently
stud 20, has a tip which engages a lip 53 on knife .
42 and thereby maintains the same in its opera
retained on stud 20 by a washer 55 and a lock
nut 56. On the hub of the lever 52 is formed a
depressed section 51 which engages the upper end
of a cam piece 59 when lever 52 is manually turned
into the proper position. Cam piece 59 is pro 25
to make the wax coating on their outer faces
tacky. The sealer plate 14 is supported by a stud
11 (Fig. 3) carried by a lug on frame I2 and
threaded into a boss on plate 14, and other similar
studs (not shown). Folder plate 1G is similarly7
supported from frame I2. A bottom plate 19 sup
vided with elongated slots SI and slidably mounted
ports the advancing packages. Each of the sealer
on screws 63 passing through these slots and
plates 14 is equipped with an upwardly extending
threaded into bracket I9. When the section 51 of
guide tongue 18 similar to the tongue 81 of the
lever 52 iS brought into engagement with the upper
end of cam piece 59 the latter is depressed sufl'l 30 Weida patent and similarly fastened at its lower
edge to plate 14 and forming therewith a pocket
ciently to swing the knife 3S downwardly to the
adapted to receive the label severed from web W
position shown in Fig. '1 and the tip of lever 52
and. hold it in position to be applied to the tacky
is disengaged from lip 53. Knife 42 will- then be
end folds of the wrappers ofthe packages P. The
free to swing outwardly to the position. shown
bottom of the pocket is formed by a step 80 on an
in Fig. '1, and the pieces 44 thereof may be re
extension 82 of the sealer plate V14. The web W
moved from rod 46‘to permit the knife to be
while it is fed downwardly over the roll 15 is guided
cleaned or’sharpened. Then, when a new knife
by a concave guide piece 84'whose hub is fastened
42 is to be installed, the half round holes of the
on the rod 46 by a wing screw _85, and enters the
.pieces 44 thereof are positioned on the rod 46
and the lever 52 is turned to disengage section 40 pocket formed by sealer plate 1li, step 8D and
tongue 18. The feeding cf the web W is stopped
51 thereof from cam piece 59. This movement
when the middle of the indentations in the edges
of lever 52 causes its tip to engage and Swing the
of the web is aligned with the cutting edge of knife
knife 42 about rod 46 to a position where its lower
36, the latter having been previously withdrawn
edge overlies the knife 35 while the cam piece 59
is being released from the section 53 of lever 45 by the cam roller 29 on applier arm I5 during
the retraction of the applier head I8 to the posi
52. Thus the knife 35 will be free` to swing up
tion shown in Fig. 1, by the connecting rod I5.
wardly against the cutting edge of knife 42 and
When the connecting rod I5 moves the applier
will be maintained by the latter in operative posi
arm I5 forwardly the knife 3G coacts with knife
tion.
.
`
_ Knife 36 is normally in its cutting position 50 42 to sever a label from web W and the applier
head I8 presses the leading edge of the label
against the tacky end folds of an advancing
package P. Thus the thermoplastic coating along
tween the knives 3B and 42 for severance of a
the inner face of the leading edge of the severed
label. When the knife 36 is in its cutting posi
tion it underlies the cutting edge of knife 42 and 55 label adheres to the tacky thermoplastic coating
of the overlapped end folds of the wrapper on
is maintained by the same in its operative posi
package P. The remainder of the label is caused
tion. When the knife 36 is retracted to the posi
to adhere to the tackyend folds by the pressure
tion shown in Fig. 1, one corner thereof remains
of the applier head while the package P continues
in a position underlying the adjoining portion of
the cutting edge of knife 42 and thereby main 60 advancing. The bottom plate 19 supports the
packages while they are advanced past the plate
tains knife 36 in operative position.
14 and the applier head I8. After leaving the
The web of label material W is fed downwardly
applier head I8 the labeled package ends engage
between knife 42 and plate 48, while knife 36 is
with heated side guide plates 88 which serve to
retracted, by the feed roller 10 loosely mounted
bond the thermoplastic coating on the inner faces
on a stud 1I supported on bracket 24. If desired,
of the labels to the tacky end folds of the package.
the edges of web W may be provided with spaced
What is claimed is:
cut-outs or indentations which engage raised por
1. In a web-cutting mechanism, the combina
tions 12 on roller 1I! as the web is fed by the roller.
shown in Fig. 2 except when it is retracted to
permit the web of label material to be fed be
As previously mentioned, the bracket 244 is an
extension of a housing (not shown) and the hous
ing is fastened to frame I2. Since the construc
tion of the Vhousing and bracket 24 is fully dis
closed in the above mentioned Weida Patent
tion with means for supporting a knife in a
70 stationary position, said stationary knife having
a cutting edge, of a support pivotally mounted
for swinging movement to and fro, a knife sup
porting member pivotally mounted on >said sup
port, a movable knife secured to saidv member
unnecessary. However it may be noted that a 75 and having a cutting edge adapted to coact with
2,349,317, further description thereof is deemed
2,409,065
5
6
the cutting edge of said stationary knife to sever
of material from said web, and a device for mov
ing said movable knife away from the stationary
knife to permit the stationary knife to be re
a length of material from a web of material po
sitioned between the cutting edges of said knives,
moved by swin-ging said members outwardly on
and a spring urging said movable knifetoward
the cutting edge of said stationary knife to main UL said stationary support. ’
4. lin a web-cutting mechanism, the combina
tain one portion of said movable knife against
tion with a stationary support, of a stationary
the cutting edge of the stationary knife, the re
knife provided with a cutting edge, said station
mainder of said movable knife being spaced suf
ary knife also being provided with members
ficiently from the stationary knife to permit a
which are pivotally mounted on said stationary
web of material to be _inserted between the out
support, an arm pivotally mounted for swinging
ting edges of the knives, said support being mov
movement 4to and fro, a knife supporting member
able toward the stationary knife to move the
pivotally mounted on said arm, a movable knife
cutting edge of the movable knife across the
secured to said member and having a cutting edge
cutting edge of the stationary knife and thereby
means, and a device for moving said movable
f adapted to coact with the cuttingedge of said
stationary knife to sever a length of material
from a web of material positioned between the
knife away from said stationary knife to facili
tate removal of the stationary knife from said
cutting edges of said knives, said stationary knife
being pivotally movable upon said stationary sup
sever a length of material from said web, said
stationary knife being detachable from said
means.
` 2. ln a web-cutting mechanism, the combina
port to a position wherein its cutting edge over
lies one corner of said movable knife, and a spring
tion with a stationary support, of a stationary
urging -said movable knife toward the stationary
knife provided with a cutting edge, said station
ary knife also being provided with members
which are pivotally mounted on said stationary
support,
arm pivotally mounted for swinging
movement to and fro, a knife supporting member
knife to maintain the corner of the movable knife
pivotally mounted on said arm, a movable knife
terial to be inserted between- the cutting edges of
secured to said member and having a cutting
e .ge adapted to coaot with the cutting edge of
said stationary knife to sever a length of ina
terial from a web of material positioned between
the knives, said arm being-movable toward the
stationary knife to move the cutting edge of the
lower knife across the cutting edge of the upper
knife and thereby sever a length of material from
said web, anda device for moving said movable
knife away from .the stationary knife to permit the
stationary knife to be removed by swinging said
the cutting edges of said knives, said stationary
knife being pivotally movable upon said station
ary support to a position wherein its cutting edge
overlies one corner of said movable knife, and
a spring urging said movable knife toward the
stationary knife to maintain the corner of the
movable knife underlying the stationary knife
against the cutting edge of the stationary knife,
the remainder of the movable knife being spaced
sufficiently from the stationary knife to- permit
underlying the stationary knife against the cut
ting edge of the stationary knife, -the remainder
of `the movable knife being spaced sufficiently
from the stationary knife to permit a web of ma
members outwardly on said stationary support,
said device including a slidable cam piece engag
ing the one face of said movable knife, and a
manually operable lever adapted to engage and
move said cam piece toward said movable knife to
disengage the movable knife from »the stationary
knife.
5. In a web-cutting mechanism, the combina
a web of material to be inserted between the
tion with a stationary knife having a cutting edge
cutting edges of the knives, said arm being mov
able toward the stationary knife to move the 45 on its lower edge, an arm pivotally mounted for
swinging movement about a vertical axis to and
cutting edge of the l wer knife across the cut
fro in a horizontal direction, a knife supporting
ting edge of the upper knife and thereby sever
member pivotally mounted on said arm for swing
a length of material from said web.
ing movement about a horizontal axis, a movable
3. In a web-cutting mechanism, the combina 50 knife secured to said member and having a cut
tion with a stationary support, of a stationary
ting edge adapted to coact with the cutting edge
knife provided with a cutting edge, said station
of said stationary knife to sever a ’length of ma
ary knife also being provided with members
terial from a web of material, the cutting edge
which are pivotally mounted on said stationary
of said stationary knife overlying one corner of
support, an arm pivotally mounted for swinging
the movable knife, and a spring urging said mov
movement to and fro, a knife supporting member 55 able knife upwardly to maintain the corner there
pivotally mounted on said arm, a movable knife
of underlying the stationary knife against the
secured to said member and having a cutting
cutting edge of the upper knife, the remainder of
edge adapted to coact with the cutting edge of
the movable knife being spaced sufficiently from
said stationary knife to sever a length of ma
the stationary knife to permit a web of material
terial from a web of material positioned between 60 to be inserted between the cutting edges of the
the cutting edges of said knives, said stationary
knife being pivotally movable upon said station
ary support to a position wherein its cutting edge
knives, said arm being movable toward the sta
tionary knife to move the cutting edge of the
movable knife across the cutting edge of the sta
overlies one corner of said movable knife, and a
tionary knife and thereby sever a length of mate
spring urging said movable knife toward the 65 rial from said web.
stationary knife to maintain the corner of the
6. In a web-cutting mechanism, the combina-V->
movable knife underlying the stationary knife
tion with a stationary knife having a cutting edge,
against the cutting edge of the stationary knife,
an arm pivotally mounted for swinging movement
the remainder of the movable knife being spaced
to
and fro, a horizontal adjusting screw thread
70
sufficiently from the stationary knife to permit a
ed into said arm, a knife supporting member piv
web of material to be inserted between the cut
otally mounted on said adjusting screw, a mov
ting edges of the knives, said arm being movable
able knife secured to said member in a position
toward the stationary knife to move the cutting
' wherein one of its corners underlies the cutting
edge of the lower knife across the cutting edge
edge of the stationary knife, and a torsion spring
of the upper knife and thereby sever a length
7
2,409,065
anchored at one end in said screw and having its
other end underlying said movable knife to urge
the same upwardly against said stationary knife,
whereby said adjusting screw may be turned to
regulate the tension of said movable knife against
the stationary knife.
8
abutment, and a movable horizontal knife having
a cutting edge coacting with the cutting edge of
said vertical knife to shear a length of material
from a web of material positioned between the
cutting edges of said knives.
9. In a web-cutting mechanism, the combina
tion with a stationary knife having a cutting edge,
of means connected to said stationary knife for
provided with a cutting edge and having grooved
pivotally supporting the same, an abutment ar
members on one of its faces adapted to be posi 10 ranged to engage one face of said stationary
knife, a manually operable device adapted to en
tioned on said rod, stops positioned to engage the
gage said stationary knife and maintain said knife
other face of said knife, a device adapted to en
in operative position against said abutment, a
gage said other face of said stationary knife and
movable knife having a cutting edge coacting
swing said stationary knife about said rod to an
operative position against said stops, and a mova 15 with the cutting edge of said stationary knife to
ble knife having a cutting edge adapted to coact
shear a length of material from a web of mate
with the cutting edge of said stationary knife t0
rial positioned between the cutting edges of said
7. In a web-cutting mechanism, the combina
tion with a stationary rod, of a stationary knife
shear a length of material from a web of mate
knives, a movable support on which said mova
rial positioned between the cutting edges of said
ble knife is mounted, a spring urging said mova
le support toward said stationary knl'f‘e to main
tain a portion of said movable knife against the
cutting edge of said stationary knife, and a mem
knives.
8. In a web-cutting mechanism, the combina
tion with a stationary knife arranged in an ap
proximately vertical position and having a cut
ting edge along its lower edge, of means connected
to the upper edge of said vertical knife for piv
otally supporting the same, an abutment ar
ranged to engage one face of said vertical knife,
a manually operable device adapted to engage
the upper edge’of said vertical knife and main
tain said knife in operative position against said 30
ber adapted to be displaced by said device into
engagement with said support, when said device
is manually operated to release said stationary
knife, to move said support and movable knife
away from said stationary knife and thereby
facilitate removal of said stationary knife.
ERNEST E. POI-1L.
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