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Sept. 10, 1946. _ '
¢, J, MALHIOT
4
2,407,313
WRAPPING MACHINE
Filed July 5, 1940
'14 Sheets-Sheet 2
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INVENTOR.
BY: 610mm Mah‘at
ATTORNEYJ.
Sept. 10, 1946.’
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c. J. ‘MALHIOT
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WRAPPING MACHINE
‘ Filed‘July 5‘, 1940
14 sheets-sheet 5
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Sept. 10, 1946.
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Sept. 10, 1946.
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2,407,313 ‘
WRAPPING MACHINE
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Sept..10,_ 1946.
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2,407,313
WRAPPING MACHINE.
'
Filed July 3. 1940
14 Sheets-Sheet 14
Patented Sept. 10, 1946
2,407,313
UNITED STATES PATENT OFFICE
Clarence J. Malhiot, Oak Park, Ill., assignor to
F. B. Redington Co., Chicago, 111., a corporation
of Illinois
Application July 3, 1940, Serial No. 343,849
33 Claims. (Cl. 93-7)
2
1
A still further object of the invention is to
This invention relates to packaging or wrap
provide a conveyor structure in a packaging 'or
ping machines, and more particularly to such
machines of the high speed automatic type.
It is an object of the invention to provide a
packaging or wrappingnmachine of improved con
wrapping machine particularly adapted for the
handling of frangible articles, which conveyor is
operable to move the articles along a predeter
mined path in spaced relation, independent mo
tive means being provided for each. article,,wl_1ere
struction and operating» characteristics, and more
speci?callyto provide an automatically operable
machine adapted for the high speed packaging
or wrapping of frangible or relatively easily dam
aged articles.
by even though the conveyor may be relatively
long, no cumulative crushing effect is appliedto
10 the articles in their transmission movement.
Various further objects, advantages and fea
A further object of the invention is to provide
a machine of the foregoingitype wherein various
tures of the invention will appear from ‘the fol
conveyor elements thereof areadapted for variav
ble speed motion, as distinguished from uniform
or intermittent operation, whereby to facilitate
lowing speci?cation when. taken 'in connection
with the accompanying drawings, wherein cer
tain preferred embodiments of the invention are
the passage ofthe articles or packages through
set forth for the purposes of illustration.
the machine at highspeed, but without shock or
,
In the drawings, wherein like reference. nu
jar, and insuring a suf?cient time interval of ar
merals refer to like parts throughout: '
ticle or package movement at the various operat
ing stations to permit adequate and complete op
eration of the mechanisms disposed at such sta
Figure 1 is ,a general assembly view, in front
elevation, of a wrapping machine constructed in
accordance with the principles of the present in
vention.
tions.
.
More speci?cally stated, an object of the in
vention is to provide, in a machine of the fore
going type, continuously operable article or pack_
age conveying means such as conveyors, wrap
Fig. 2 is a partial detail view of the outer end
of the feeding conveyor structure.
Fig. 3 is an end view of the machine, as. seen
from the left in Fig. 1, the outer end of the
feeding conveyor being brokenaway.
Fig. 4 is a sectional view of the feeding con
ping wheels, and the like, having alternate high
and low speed cycles of operation, the high speed
cycle providing for a maximum rate of travel of
veyor, taken on the line 4—4 of Fig. 3.
the articles along a predetermined path, and the "
low speed cycle insuring a suflicient time interval
of article movement at a predetermined station
or stations to permit the operation of the vari
ous operating mechanisms thereon.
Fig. 5 is a partial rear viewl'of the machine,
more particularly illustrating the drive gearing.
Fig. 6 is a sectional view through the machine,
taken generally along the line 6—6 of Fig. 5 and
more particularly illustrating the article feed
Another object of the invention is to provide :
ing mechanism and associated drive, for feeding
the articlesrfrom the feeding conveyor into the
continuously movable variable speed packaging
or wrapping elements having alternate high and
low speed cycles of operation, the high speed
cycle facilitating the approach of the elements
wrapping wheel.
7
g
.
‘
Fig. '7 is a sectional view of the feeding mech
anism, on the line l-1 of Fig. 6.
into operative article or package engaging po 40
Fig. 8_ is a detail sectional view of the feeding
sition, and the low speed cycle insuring the proper
mechanism, on the line 8-8 of Fig. 7.
movement of the elements as they engage and
operate upon the articles.
'
Still another object of the invention is to pro
vide, in a packaging or wrapping machine, article
engaging transmission elements of resilient con
struction whereby to allow- for possible‘ varia
tions in the necessary movements of the articles
as they are engaged by such elements and there
by obviate the possibility of damage to the articles 50
by the elements.
Still another object of the invention is to pro
vide, in a packaging or wrapping machine, a proc
essing conveyor structure which may be operated
independently of the machine and while other
machine elements are not in operation.
Figs. 9 and 10 are detail perspective views of
two of the slide members associated with the feed
ing mechanism.
-
Figs. ll'and' 12 are sectional views of the feed
ing. mechanism illustrated in Fig. 7, taken along
the line ll—ll thereof and showing two of the
operating positions of the mechanism.
'
Figs. 13 and 14 are detail perspective views of
the wrapper paper guide means and clamping
means, res ectively, associated with the feed
mechanism.
Fig. 15 isa detail view, of the wrapping wheel
and associated wrapping mechanisms, as seen
from the front of the machine as in Fig. 1.
2,407,313
'4
3
comprises a frame 49, a belt feeding conveyor 50
Fig. 16 is a sectional view of the wrapping
upon which the soap bars may be placed in any
mechanism, taken on the line 1 6—1 6 of Fig. 15.
desired manner, and by which they are fed to a
Figs. 17 and 18 are detail views of two of the
feeding station, at which a feed mechanism gen
wrapping elements of the wrapping mechanism.
erally indicated by the numeral 5! is located.
Fig. 19 is a sectional view of the wrapping wheel
The feeding mechanism feeds the bars, together
and associated wrapping mechanism, on the line
with suitable paper wrappers or the like, into a
Iii-19 of Fig. 15 and also illustrating the asso
rotatable conveyor or wrapping Wheel generally
ciated drive structure, as indicated by the sec
indicated by the numeral 52. In the wrapping
tion line |9—-|9 of Fig. 5.
Fig. 20 is a sectional view through the mecha 10 _wheel, the wrapper is folded and the bars are
wrapped by suitable wrapping or packaging de
nism of Fig. 19 on the line 2U—20 thereof.
vices, later to be described; and upon reaching
Fig. 21 is a sectional view through the wrap
transmission or ejector rolls 53, the wrapped bars
ping wheel and mechanism on the line 2l—2|
are ejected from the wrapping Wheel to a trans
of Fig. 19.
fer wheel 54 which transfers them to a processing
Fig. 22 is a sectional view through the mecha
conveyor, generally indicated by the numeral 55.
nism of Fig. 21 on the line 22-22 thereof.
In the processing conveyor, the bars are passed
Figs. 23, 24 and 25 are detail views of various
wrapping mechanism parts.
along suitable processing elements, which in the
Fig. 26 is a sectional view through‘ the machine,
on the lines 26-26 of Figs. 5 and 15, more particu
larly illustrating the ejector elements for mov
ing the articles from the wrapping Wheel to the
transfer wheel, and the associated drive mecha
particular machine illustrated are heating and
cooling elements for sealing the wax paper wrap
per in which the bars are wrapped and, after
processing, the bars are ejected from the proc
nism.
able to deliver them to a suitable point of delivery.
Drive mechanism
The various mechanisms of the machine are
all adapted to be driven in synchronized, timed
essing conveyor onto a removal conveyor 56 oper
Fig. 27 is a sectional view more particularly
illustrating the overrunning clutch and inde
pendent drive for the processing conveyor, taken
on the line 21—21 of Figs. 5 and 26.
Fig. 28 is a partial detail view of the ejector ele
ments, transfer wheel, and infeed end of the proc
relation by means of a main electric driving mo
30 tor 60, Fig. 1, and a drive gearing mounted on
essing conveyor as seen from the front of the ma
chine as in Fig. 1. .
the rear of the machine and best illustrated in
Fig. 5. More particularly, referring to Figs. 1, 3,
5 and 6, the motor 69 drives a main drive shaft
Fig. 29 is a sectional view of the mechanism of
6| through the intermediary of a ?exible belt
Fig. 28 on the line 29-—29 thereof.
Fig. 30 is a detail perspective view of one of 35 62, belt pulleys 63 and 64, and a clutch mecha~
the transfer wheel package support platforms.
Fig. 31 is a detail perspective View of one of
the processing conveyor feed links.
Fig. 32 is a sectional view through the mecha
nism 65. The pulley 53 is loosely mounted on the
shaft BI, and the clutch mechanism 65, which
may be any suitable form of disk clutch, is pro
vided for connecting and disconnecting the driv
nism of Fig. 28, and associated drive, on the lines 40 ing engagement between the pulley and the
shaft. The clutch is controlled by means of an
32-—-32 of Figs. 5 and 28.
oscillatable shaft 66 and a linkage 61 leading to
Fig. 33 is a detail View of the discharge end of
a clutch control handle 68 mounted on the front
the processing conveyor and the infeed end of the
of the machine in a position to be conveniently
associated removal conveyor, as seen from the
45 manipulated by the machine operator. It will
front of the machine.
be seen that while the pulley 63 is constantly
Fig. 34 is a sectional view through the mecha
operated so long as electric motor 60 is in opera
nism of Fig. 33 on the line 34--34 thereof.
tion, the main drive shaft 61 is operated only
Figs. 35 and 36 are sectional views through the
when the clutch 65 is engaged.
processing conveyor on the lines 35-—35 and
Drive shaft 6! carries a pinion 69 in driving
36—36 respectively of Fig. l; and
50
engagement with a gear ‘ill mounted on a shaft
Figs. 3'7 to 44, inclusive, are diagrammatic views
‘H. The gear ‘Ill may be connected to the shaft
illustrating the several steps in the wrapping of
‘H through an overload driving arrangement as
the articles as performed by the machine.
indicated at 12. Such overload device may be
Referring more particularly to the drawings,
of any suitable construction, and is provided for
the machine illustrated comprises a high speed
permitting the gear ‘Ill to slip on the shaft ‘H in
automatic machine for packaging or wrapping
bars of soap, such as laundry soap or the like.
In the use of a machine of this type,,it is desir
able that the soap bars be fed to the machine as
they come from the molding presses, at which 60
time they are in soft, semi-plastic and frangible
condition.
Problems are presented in the han
the event of overload conditions in the machine.
It is to be understood that overload mechanisms,
for safety purposes, may be elsewhere provided
in the drive connections if desired. Normally,
however, the gear '16 e?ects the rotation of the
shaft ‘H 'as the gear is driven. This shaft pro
jects forwardly through the machine frame 49,
dling of the semi-plastic bars to effect the high
as best shown in Fig. 6, and near its front end
speed wrapping thereof without damage to the
bars, which problems are solved by the present 65 carries three control cams ‘l3, 14,,and 15, form
ing the driving means for the feeding mechanism
invention. While the machine as illustrated is
5|, as will be later described.
thus particularly adapted for the high speed
The shaft ‘H, at its rear end, also carries a
wrapping of semi-plastic soap bars, it is to be
gear 16 in driving engagement with a gear "i1
understood that the various features of the in
vention are adaptive for other uses and purposes, 70 mounted upon a shaft 18, see particularly Figs. 5
and 19. Gear 17 carries a block 19 provided with
including the wrapping or packaging of other
a longitudinal track 89. A shaft 8|, offset with
types of articles.
respect to the axis of shaft 18, carries a crank
member 82, which crank is provided with a pin
Referring to Fig. 1, the machine in general 75 83 engageable within the track 86 of the block
General machine structure
2,497,313
5
6
,
‘I9. Accordingly, it will be seen that as. the. gear
invention, and is only ‘diagrammatically indicated.
11 is rotatably driven, moving the block 1.0 which
is mounted thereon in a circular path, the crank
pin 83 which is engaged in the block track will
cause the rotation of the crank 02 and its associ
ated shaft 8I. But it is to be noted that while
the gear TI and the shaft ‘[8 are driven at con.
stant speed, the driving movement which is im
parted to the crank 82 and its associated shaft
ill will be a variable speed motion, clue to the 10
Constant. speed .idler gear I05 also drives a gear
I10, Figs.;5. and 26, secured to a shaft III. This
offset displacement of the axes of the shafts ‘I8
and 8|. While the rotation of shaft M will be
shaft ‘also extends forwardly through the ma
chine frame and carries a crank H2 at its front
end, which crank constitutes another of the driv
ing elements for the wrapping mechanism.
Gear IIO meshes with a gear II3 associated
with a. shaft II4 also extending through the ma
chine frame and provided on its front end with
a hand wheel II5, Fig. 1. Axial movement of
shaft I I 4_serves to connect the gear II3 thereto
by suitable clutch means, not shown, after which
continuous, it will be at variable speeds compris~
the shaft and the. gear may be rotated by the
ing alternate fast and slow cycles of operation
the slow cycle of rotation being imparted thereto 15 hand wheel whereby to manually operate the
drive gearing as for setting up purposes and the
when the parts are in the position illustrated in
like.
Fig. -5, and the rapid cycle of operation being
Constant speed gear IIO further meshes with
imparted when the crank and block ‘I9 assume a
and drives a gear H6, Figs. 5 and 26, secured to
position displaced 180 degrees from the position
shown. While the, rotation of the shaft IN is 20 a stub shaft Ill, the gear H5 in turn being ar
ranged to drive a gear II8 Which is loosely
alternately fast .and slow, it is further to be noted
mounted on a shaft I I9, the latter extending for
wardly through the frame of the machine and
being provided at its forward end with a pair
of bevel gears I20 and I2I adapted to drive the
that the acceleration and deceleration of the
shaft BI is gradual, whereby to avoid imparting
shocks to the shaft or to the mechanisms oper
ated therefrom. During operation, the pin 83
slides longitudinally in the track.“ and main
tains driving engagement between the parts not
withstanding the offset relation of the shafts ‘I8
and BI. The variable speed drive mechanism
thus providedis well suited for the purposes of
the present invention, but it is to be understood
that other suitable forms-of variable speed drives
could be substituted.
Shaft BI carries a pinion 85., Figs. 5 and 19,
ejector rolls 53, and with a‘ hand wheel I22. The
arrangement is such that the shaft II9 may be
driven either from the gear I I0 or from a supple
mentary independently operable power source
which-in the particular embodiment of the mech
anism disclosed comprises an electric motor I24.
To this end a gear I25 is pinned to the shaft H9,
and clutch devices are provided so that the gear
and the shaft may be driven selectively either
in engagement with a gear 86 mountedon a 35 from the power gear I I8 or the electric motor
I24, as will best be understood by reference to
shaft 07, which shaft also carries a bevel gear
Figs. 26 and 2'7 of the drawings, seel also Figs. 3
88 adapted 'to drive a cooperating bevel gear 89
and 32. More speci?cally, the motor shaft is pro
mounted on one end of a shaft. 90. The other
vided with a worm I26 adapted to drive a worm
end of shaft 90 carries a gear SI, Figs. 3, 5 and 6,
which through gearing 52 and 93 drives the feed» 40 gear I21 mounted on a stub shaft I28. This shaft
is connected by means of a coupling I20 to one
ing conveyor 50. It will thus be seen that the
part of a one-way overrunning clutch device I355
feeding conveyor, to which more speci?c refer
which may be of any suitable construction, the
ence will hereinafter be made, is driven at vari
other part of the clutch being rigidly associated
able speed through the several driving connec
Similarly an overrunning
clutch assembly I3! forms a one-way driving
Variable speed shaft 81 also carries a pinion
connection between the hub sections of gears I I8
95, Figs. 5 and 19, in driving engagement with a
and I25. It will thus be seen'that the gear I25
gear 96 secured to a. shaft 81 which extends for»
and its associated shaft I I9'may be driven selec
wardly through the machine frame and on vits
front end carries the wrapping. wheel 52. The .50 tively either from the power gear I I8 or the elec
tric motor I24, the motor I24 remaining station
wrapping wheel is thus also driven at variable
a'ry'when the shaft is driven from gear H0, and
speed through its driving connections.
similarly the gear II8 being uninfiuenced when
Constant speed shaft ‘I8 also extends forward
the shaft is independently driven by the motor
ly through the frame 49 of the machine and is
I24. By this means it will be seen that the shaft
provided on its front end with a gear I00 forming
I I9 as well as gears driven from the gear I25,
a part of the driving means for the wrapping
later to be described, may be independently op~
mechanism, as will be later described. Adjacent
erated by the motor I24 ‘while the gear H8 and
its rear end, the shaft carries a gear IOI in driv
the various mechanisms associated therewith
ing engagement with gear I02 secured to shaft
heretofore described are not in operation. The
I 03, extending forwardly through the frame of
hand wheel I22 furnishes a hand power means
the machine and provided at its front end with
for the shaft H9 and its associated structures.
a block I04 forming another ‘driving element for
Referring further to Figs. 5, 2'? and 32, the
the Wrapping mechanism, as will be also later
gear I25 meshes with and drives a gear I 33
described. The gear I00 and the block I04, be~
mounted on a stub shaft I34, the shaft also ear
ing driven from the shaft ‘I8, are operated at
tions described.
'
.45 with the gear I25.
constant speed.
Driving gear 11, further referring to Figs. 5 and
19, also meshes with an idler gear I05 which is
loosely mounted on the shaft 81. This idler gear
drives a gear I06 which in turn drives a gear I01 .
forming the driving mechanism for the paper
feeding and ‘cutting rolls diagrammatically indi
cated at I03 and I09 on Fig. 1. The speci?c con
rying a gear I35 adapted to drive a gear I36. '
Gear I36 is mounted on a shaft I37, the forward
end of which carries a sprocket I38 forming the
driving means for the processing conveyor. Gear
I35 also meshes with and drives a gear I39 which
in turn drives a gear I40, the latter being mounted
upon a shaft I4I which at its front end carries
the transfer wheel 54. It will thus be seen that
struction of these paper feed and cutter rolls and
the gear I25, selectively operable, as previously
their driving means forms no part of the present 75 described, is adapted to drive the ejector rolls 53, .
2,407,313
8
a
the transfer wheel 54, and the processing con
veyor 55 by means of the connections described.
Gear I33 also meshes with and drives a gear I43
adapted to operate a cooling water pump I44 as
sociated with the processing conveyor.
will be best understood from its perspective detail
view, Fig. 9. The slide is horizontally recipro
cable upon a stationary shaft I19, Figs. '7, 8, 11
and 12, carried by the frame of the machine, the
slide being provided with openings I80 and I8I
for bearing engagement with the shaft. The
Referring to Figs. 33 and 34, it will be seen
that the sprocket I45 at the discharge end of the
slide is also provided with a pair of bifurcations
processing conveyor is provided with a gear I46
I82 and I83 adapted to loosely embrace a square
which, through gearing I41, I48, is adapted to
shaft I84 for slidable movement therealong, the
drive a gear I49 associated with and forming the 10 shaft I04 also being carried by the frame of the
driving means for the removal conveyor 56.
machine.
Shafts I19 and I84 form a track
Having described the drive mechanism of the
structure for guiding the slide in its horizontal
machine, the several mechanisms operated there
movements. Normally the slide moves as a unit
by Will now be more speci?cally considered.
with the shaft I16 and to this end. a compression
l5 spring I85 normally holds the bracket I80, which
Feeding conveyor
is pivoted to the slide as indicated at I81 and
Referring to Figs. 1 to 6 inclusive, it will be
through which the shaft I15 extends, in engage
seen that the feeding conveyor, generally indi
ment with a collar I88 fixed to the shaft. How
cated by the numeral 50, more speci?cally com
ever, in the event that the pusher I10 engages
prises an elongated frame structure I53 carrying 2O abnormal resistance, as for example in the jam
an endless belt or the like I55 adapted to be driven
ming of articles in the machine, the spring I85
at alternately fast and slow speeds by its drive
will yield permitting shaft I16 to move idly with
gear 93. An adjustment screw I55, Fig. 2, may
in the bore of the bracket I 80.
be provided for positioning the end roller I51 for
To control the vertical movements of the push
the outer end of the conveyor, thus providing 25 er, control cam 15 is provided with a cam track
for the proper tensioning of the conveyor belt.
which operates a lever I90 pivoted as indicated at
Fig, 2 shows the outer end of the conveyor, such
I9I, Fig. 7, a second lever I52 being associated
end being cut away from the views illustrated by
with the lever I90 for movement therewith. Le
Figs. 3 and 6. In this connection it is to be un
ver I92 is pivotally connected to a vertically re
derstood that the conveyor may be of any length 30 ciprocable bar I93 which is guided in its vertical
suitable for the particular machine. A pair of
movements by a stationary guide bracket I94 se
pressure rollers, preferably rubber, I58 and I58
cured to the frame of the machine. As best
carried by arms I50 and I6I pivoted to a bracket
shown in Figs. 7, 8, l1 and 12, the vertically re
I62 are provided for engaging the upper faces of
ciprocable bar I93 carries a U-shaped bracket I95
the soap bars I03 as they are fed into the ma 35 having a horizontally extending trough track in
chine on the conveyor. The pressure rollers are
which a roller I95 carried by the pusher or feed
urged into engagement with the soap bars by
gravity, their downward movements being limited
ing member I10 is adapted to reciprocate. It
HI and I12, Fig. 14, which holds the wrappers in
is being ejected from the belt, the rapid belt
will be seen that by means of the mechanism de
by adjustment screws I54 and I65. The pressure
scribed the vertical pivoting of the pusher I10
rolls aid in maintaining the soap bars against 40 may be controlled by the movements of bar I93,
undesired slippage on the surface of the conveyor
While the pusher is simultaneously horizontally
belt, the rectangular bars preferably being fed to
reciprocated by the slide I11. The slide I11 and
the conveyor, as best shown in Fig. 2 so that they
the bar I93 are so timed in their movements that
are in longitudinally alined and abutting relation.
a substantially horizontal motion will be impart
45 ‘ed to the pusher I10 as it moves to the right as
Feed mechanism
seen in Figs. 7, l1 and 12 to eject the soap bar
As the soap bars, being fed inwardly on the
I63a which is at the feeding station from the
feeding conveyor, reach a feeding or loading sta
conveyor into the wrapping wheel, the end of the
tion adjacent the wrapping wheel 52, they are
pusher being returned in an upwardly directed
fed or loaded into the Wrapping wheel from the 5 0 generally elliptical path so as to clear the suc
conveyor by the feed mechanism generally indi
ceeding soap bar I63b which is being fed to the
cated by the numeral 5|, and best shown in Figs.
feeding station by the feeding conveyor belt as
1, 3 and 6 to 14 inclusive of the drawings.
the pusher feeder is being retracted for its next
The feeding mechanism derives its power from
succeeding feeding operation. As the succeeding
the three control cams 13, 14 and 15, driven from 5 5 bar reaches the feeding station, it is brought into
the main drive mechanism of the machine at
engagement with and positioned by an adjustable
constant speed as previously described. Cams 13
stop member I51, Figs. 11 and 12.
and 15 control the movements of a main pusher
The fast and slow movements of the conveyor
bar or feeding member I10 which transfers the
belt I55 are also so timed with respect to the
soap bars from the feeding conveyor belt into the 0 movements of the pusher I10 that the slow move
6
wrapping wheel, whereas cam 14 operates and
ment of the belt takes place as the soap bar at
controls a pair of paper clamp members or arms
the feeding or loading station, such as bar I63a,
proper position against the soap bars as they are
movement taking place after the bar has been re
fed by the pusher into the receiving pockets of 6 5 moved to bring the next succeeding bar, such as
the wrapping wheel.
bar I631), quickly into position at the feeding sta
More speci?cally, control cam 13 is provided
tion and into engagement with the stop I91.
with a cam slot I13, Fig. 7, which operates and
This type of belt movement constitutes an im
controls the movements of a pivoted bell-crank
portant feature of the invention. The rapid
lever I14. The upper end of this bell-crank lever 70 belt movements facilitate high speed operation of
is provided with a, bracket I15 which threadedly
the machine, the mechanism being adapted to
receives a shaft I16 connected to and adapted to
wrap bars at speeds in excess of two hundred
operate a slide I11 to which the pusher bar I10
bars per minute. At the same time, during the
is pivotally connected by a pivot connection I18,
time that the bar at the feeding station is being
Fig. 7. The detailed construction of the slide I11 75 removed from the belt conveyor by the pusher
2,407,313
.
10
9
I10, the belt is moving at a relatively slow speed
thus minimizing the crushing eifect of the suc
ceeding bars against the bar being ejected. As
has been previously stated, the bars are received
by the machine in a wet and soft semi-plastic
readily frangible condition, and if excessive pres
sures exist between the trailingedge of the bar
being removed and the leading edge of the suc
diagrammatically indicated in Figs. 37 and 38 of
the drawings.
.
'
Conveyor or wrapping wheel and packaging
mechanism
The conveyor or wrapping wheel 52 and its as
sociated packaging or Wrapper folding mechanism
is best illustrated in Figs. 1 and 15 to 25 inclusive
of the drawings. The wrapping wheel, Figs. '15,
ceeding bar, the corners of these edges, as indi
cated at I63a' and [63W in Fig. 11, may be easily 10 21 and 22, moves ‘counterclockwise as seen in Figs.
15 and 21. It is provided with a series of circum
damaged. Additionally, the acceleration and de
ferentially disposed article or package receiving
celeration of the belt is gradual so that no jerks
pockets 230, the trailing wall 23! of each pocket
being ?xed and the ‘leading wall 232 of each
sure rolls I58 and I59 aiding in maintaining the 15 pocket being in the ‘form of a pivoted lever spring
urged by compression ‘springs 233 into pocket
driving relation between the belt and the bars
closing or bar-gripping position. Each lever '232
superimposed thereon.
I
is pivoted as indicated at 234 and is provided with
As the soap bar is fed from the conveyor into
an extending arm 235 vcarrying a roller 2.36 at its
the wrapping wheel it is pushed against cut outer
and inner wrappers, the initial enclosing of the 20 end adapted to bear against the'periphery of a
or shocks are transmitted to the articles and un
controlled slipping‘ is minimized, the rubber pres
?xed cam 23?. Referring .to Fig. 21, it will be seen
that the contour of cam 231 is such as to permit
bars in the wrappers being accomplished as the
bars are moved into the Wrapping wheel pockets.
Suitable inner and outer wrapper sheets 200 and
as! may be mounted in web-form upon rolls 232
and 293 respectively carried on the upper frame 25»
springs 233 to move the levers 232 into pocket
closing positions as each pocket becomes alined
with the feeding pusher I 10 at the loading station
portion of the machine, Fig. 1, the webs beingv
fed to the feeding station by feeding rolls Hi8 and
the pocket remaining closed in bar-gripping posi.
wrapping wheel pocket.
ing wrapper edge24l> and tuckingthe same un
to receive the soap bar and wrapper therefrom,
tion as the bar and wrapper are moved past the
severed into suitable wrapper lengths by cutter
several wrapping devices until the pocket is moved
rolls 533 diagrammatically indicated on Fig. l, as
previously described. Mechanism may also be in 30. a distance of approximately I80 degrees to a dis
charge position at ‘the transfer wheiel 54-where
cluded for causing the end o-fthe outer wrapper to
‘ upon the cam causes the pocket lever to be opened
extend beyond the inner wrapper end, Figs. 37
so that the ‘wrapped bar may be readily with
and 38, to facilitate the outer wrapper sealing, as
drawn by the ejector rolls 53.
I
.
Will be later described. As best shown in Figs. '7
As has been previously explained, the Wrappin
and 13, as the wrappers are fed to the feeding sta 35
wheel being ‘driven from the speed variator de
tion they are aligned and held in position by a
vices 19, 82, ‘it is moved at gradually accelerating
series of adjustable positioning devices. These
and decelerating alternate fast and slow speeds.
devices comprise a’ pair of adjustable brackets 205
By this means the movements of ‘the wheel pockets
and
and a series of finger stops 231, 288 and
N59 carried by a support bracket 2H] adjustably 4() will be slowed down at predetermined points to
facilitate the loading or unloading of the pockets
carried on the frame of the machine and adjust
and the operation of the various wrapping mech
able by a series of adjustment screws 2| l, as best
anisms upon the bars and wrappers carried there
shown in Figs. 6 and 15. In addition to theseistae
tionary guide brackets there are the two movable ” by, and speeded up in their transit between such
clamp members ill and I12 controlled by the 45 points to increase the speed, of operation of the
machine. .At the same'time the entire mechanism
movement of the cam ‘id, as previously indicated.
moves without jerks or shocks, thedriving ar
More speci?cally, control cam 14 carries a cam
rangement thus preserving the advantages of an
track adapted to operate a bell-crank lever 2l5,
intermittently operable wrapping wheel structure
Figs. 6 and 'l, the upper end of which is connected
by means of a link, 213, adjustable'as to length, '50 without the disadvantages thereof. More speci?c
cally, the wrapping wheel is operated at its slow
to a slide bracket 2|‘! shown in perspective detail
point of travel when in the position illustrated in
in Fig. 10. This slide bracket is provided with
Figs 15 and 21, when the soap bars are being fed
alined openings 2i8 and 2!!! adapted to receive
thereto by the pusher I10 and removed therefrom
the bar H9 and with a bifurcated bracket portion
22%) adapted to receive the square bar I84, the bars 55' by the ejector rolls 53.
After the bars have been loaded into the wrap;
l 19 and I 85% guiding the slide .2 ll in its horizontal
ping wheel pockets, and as the pocketsmove
movements as in the case of the slide l'l'l pre
counterclockwise from the loading or feeding sta-V
viously described. The slide 2H’ carries the mov
tion, the side edges 240 and 24! of the wrappers
able paper clamps by means of arms 22! and 222,
Fig. 14,- extending forwardly therefrom, the 60 project radially outwardly from the bars as best
indicated in Figs. 21 and 38. The wrapping wheel
clamp-s themselves being provided with spring
has a ?xed guide 242, Fig. ,‘21, associated there
pressecl presser blocks 223 and 224 at their upper
with, the advance or left edge of which is'pro
ends' As will be best understood by reference to
vided with a folding lip 243 which is adapted to.
Figs. 11 and 12, the slide 2!‘! is‘ so controlled by
its control cam as to maintain the presser blocks 65 engage the-leading wrapper-edge 240 and fold
the same into engagement with the body of the
in contact with the wrappers, holding‘ them in,
soap bar. However, immediately prior to the
clamping engagement with the soap bar, as the
engagement of theileading wrapper edge against
latter is moved into the pocket of the wrapping
the folding lip 243, a tucking member 244, Figs.
wheel, the presser blocks being caused to move
with the bar as it is transferred, whereby to 70 21, 24 and 25,- swings in a counterclockwise path
at a more rapid rate of movement than the move
maintain the proper positioning of the wrappers
with respect to the bar as it is received into the
ment of the wrapping wheel, engaging thetrail
The initial folding of the wrappers around the’ _ der the wrapper edge'ZGOI-as the latter is folded
bar as it is moved into the wrapping wheel is 75 into position' The folding action will be best
l1
understood, by- reference to Fig. 21, and also to
the diagrammatic views, Figs. 39 and 40. The
tucking member 244 is pivotally mounted upon
one arm of a lever 245 which lever is in turn piv
otally mounted on ‘the frame of the machine as
with the package as it is transported by the wrap»
ping wheel. In other words, as the folding mem
ber 255 is moved downwardly, as seen in Fig. 15,
into engagement with the wrapper end to effect
the folding operation, itsimultaneously moves to
the right while in contact with the package to
accommodate the movement of the folding mem
ber to the translation of the package in the pocket
of the wrapping Wheel. The wrapping wheel is
preferably arranged to be moving at its slow rate
of travel during the engagement of the folding
member, thus allowing sufficient time for its op
eration and without requiring a rapid horizontal
component of movement. Referring more par
ticularly to Fig. 41, it will be noted that the fold
ing member 255 is provided with two ?ngers 215
and 216, the former constituting the folding mem
ber for the upper underlying end fold and the
latter being a guide for the trailing edge of the
indicated at 246. Fig. 24. A spring 241, Fig. 40,
yieldingly urges the tucking member into en
gagement with the surface of the soap bar during
the wrapper tucking operation. The lever 245
is'operated by a link 248, adjustable as to length,
and‘ pivotally connected to the lever arm 245a
as indicated at 249, Figs. 22 and 24. The link
243' is 'in'turn-pivotally connected to and oper
ated by the crank member H2, Figs. 21 and 26,
driven from the main drive mechanism of the
machine,~as previously described. It will be seen
that gas the crank is rotated, lever 245 will be
oscillated upon its axis 246 to reciprocate the
tucking member 244 and effect the tucking ac
tion'described. After the side edges of the wrap 202
per. have thus been folded into position, they
The folding member 288 which performs the
are ‘maintained in folded position continuously
functions of folding member 255 upon the other
while the soap bars are in the wrapping Wheel
end of the package wrapper is similarly shaped
and partakes of similar movements. To this end
by the ?xed guide 242.
As the partially wrapped soap bars reachv a po
it is carried at the upper end of a crank arm 23f,
sition displaced approximately 90 degrees from
the lower end of which is pivotally connected as
the feeding or loading station, a series of end
indicated at 282 to the gear 216, the construction
folding members become operative upon the pro
being best understood by reference to the detail
jecting end portions of the wrapper, performing
View of this mechanism as shown in Fig. 13.
the necessary folding operations upon the pro 301 Crank arm 28! is also provided with a roller 233,
Figs. 16 and 18, slidable within the substantially
jecting wrapper ends and thus completing the
vertical guide track of a guide bracket 284, so that
folding of the wrappers. The sequence of the
as the gear 21%! is rotated clock-wise as seen in Fig.
end folding operations will be best understood by
IB, an elliptical movement is imparted to the fold
reference to Figs. 41, 42, 43 and 44. It will be
seen that upper and lower end folding members ; ing member 282 in a manner and for a purpose as
previously described with reference to folding
255 and 256 are ?rst simultaneously operable to
member 255.
effect the creasing and forming of the underlying
The lower end folding member and its manner
end folds. Just as folders 255 and 256 start to
of operation will be best understood by reference
withdraw, a rotary folder 251 becomes operative
to Figs. l6, 19, 21 and 23. It will be seen that this
to form the trailing overlying fold, and substan
folding member, generally indicated by the nu
tially ‘simultaneously as the package continues
meral 296 in Fig. 23, not only carries the folding
its' movement in the wrapping wheel a station
plate 256, previously described, but is also pro
ary folding pin 258 becomes operative to par
vided with a second folding plate 29f for coopera
tially 'fold the leading overlying end fold into
position; the folding being completed and the 45 tion upon the opposite end of the package, the
folding plates 25% and 29! being carried by sup
completed end folds being held in folded posi
port arms 292 and 223 respectively. The lower
tion upon continued movement of the package
end of folding member 296 is pivotally connected
by'a side wall section 259 formed as a part of
wrapper.
the‘ guide structure 242, previously described. It
'
'
'
‘
as indicated at 294 to the gear I06, and the arm
is to be understood that similar end folding and 50 293 of the member is provided with a roller 295
holding devices are provided for operation upon
operable within a generally vertical guide track
formed in a guide block 296 as best shown in Figs.
the‘ projecting wrapper ends at bothends of the
package.
16 and 21. It will be seen that as the gear Hill is
‘ More specifically, referring to Figs. 15, 16 and
rotated counterclockwise, as seen in Fig. 21, a gen
19, it wil be seen that the upper end‘folding 55 erally elliptical path of movement will be im
member 255 is carried by a bracket 265 mounted
parted to the folding members or plates 256 and
on the upper end of a crank arm 266, the lower
29! , and more specifically as the folding members
are raised into engagement "with the projecting
end of which is pivotally connected as indicated
Wrapper ends to effect the folding operation, the
at 261 to a crank disc 268 carried at one end‘ of.
a shaft 269. The other end of the shaft carries 60 folding plates will be ‘simultaneously moved to the
a gear.216 which is adpated to be driven by the
right, as seen in Fig. 21, while in contact with the
gear Hill which is operated at constant speed by
wrapper whereby to accommodate for the move—
ments of the package with the wrapping wheel as
the main drive mechanism of the machine, as
previously described in connection with the ac
previously described. Crank arm 266 carries a
roller‘21l adapted to slide within a substantially 65 tion of the upper end folding members 256 and
vertical guide track 212 formed in guide block
213 mounted upon the frame of the machine.
It will beseen that as the crank disc 268 is ro
tated clockwise, as seen in Fig. 15', roller 211 will
be vertically reciprocated Within the guide track
of the guide block 213, thus imparting a gen
280. 'As also previously described, the upper and
lower end folding members may be substantially
simultaneously operable at the slow point of move
mentlof the ‘wrapping wheel. It is to be noted
that the folding plates 256 and 29! are provided
with directly operable folding ?ngers 291 and 228
erally elliptical motion to the folding member 255.
as well as With guide fingers 299 and 3336 respec
The major axis of this elliptical path of travel
tively engageable with the trailing wrapper edge
portions.
‘
is vertical, and the horizontal component of the
movement allows the folding member to move 75
The rotary end folding members and their as
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