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Патент USA US2105726

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Jan. 18, 1938.
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'7 2,105,726
Filed July'22, 1936
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Filed July 22, 1936
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Jan. 18, 1938.
Filed July 22, 1936
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Filed July 22, 1936
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Jan. 18, 1938.
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Jan. 18, 1938.
Filed July 22, 1936
6 Sheets-Sheet 6
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Patented Jan. 18, 1938
Nestor Fries, Fort Wayne, Ind., assignor to Flash
fold Box Corporation, Fort Wayne, Ind.
Application July 22, 1936, Serial No. 91,902
3 Claims. (CI. 93—36)
The invention relates to machines for forming
Fig. 12 is a plan view of the lower roller of the
strips and applying the same to various articles. adhesive applying mechanism.
The present embodiment of the invention is par
Fig. 13 is a side elevation of the ribbon feeding
ticularly directed to the forming of paper or mechanism.
paper board strips and to the securing of the
Fig. 14 is a side elevation of the operating
same to paper board articles, such as folding means of the latter mechanism.
boxes. In certain types of folding boxes, such as
Fig. 15 is an elevation of one of the brakes.
the type described in Letters Patent No. 1,699,008,
Fig. 16 is a plan view of a box blank having
the wall sections and integral corner sections are the strips applied thereto and Fig. 1'7 is a cross
10 locked in set-up condition by folding an extending section on line I'I—I'I of Fig. 16, the blank being
?ap on each of two opposite wall sections, over in folded condition.
the inwardly collapsed adjacent corner sections
Referring to the illustrative embodiment of the
and engaging the horizontal edge of the flap be
invention I represents the main frame of the
hind a strip that is secured to the bottom section machine which is suitably supported on the floor
16 of the box or by engaging the free edge of a sec
or other structure. The machine contains two 15
ond ?ap that may be carried by the ?rst flap, the strip cutting and applying mechanisms. As they
second ?ap contacting the bottom of the box.
are duplicates, only one of them will be described.
Heretofore the strips have been secured by hand A head 2 is suitably mounted on the frame I and
to the bottom section of the box blank or to the supports a shaft 3 having the gears 4 and 5 splined
20 top section of the box blank at considerable cost thereto. The gear 4 meshes with a gear 6 splined
in time and money and the object of my invention on a shaft ‘I and the gear 5 meshes with a gear 8
is to provide a machine that will form the strip on the shaft 9. A clutch I8 connects the shaft ‘I
and secure it to the box blank in a highly e?icient to the shaft I I, the shaft I I having a pulley I2
manner and with a large saving in labor and thereon that is driven from any suitable power
time. Other objects and advantages of the in
supply. A plunger I3 is vertically slidably
vention will appear hereinafter.
mounted on the head 2 and an eccentric strap
The invention consists in a machine having
I4 is pivotally connected to the plunger and en
novel means by which the material to be treated gages an eccentric I5 mounted on the shaft 3 by
is fed through the machine, novel means for ap
the rotation of which shaft the plunger is caused
plying an adhesive to a ribbon or tape of strip to reciprocate. At opposite sides of the plunger
forming material and means to cut strips from and reciprocably supported on the frame I are 30
the ribbon and apply them to the material to be two rods I 6 that are connected at their upper
ends by the cross bar I'I, their lower ends being
The invention is illustrated in the accompany
connected to a die I8. A cam I9 on the shaft "I
35 ing drawings in which
engages the cross bar I1 and causes the die I8 to
Figure 1 is a plan view of a machine embody
descend. A tension plate 20, Figs. 9, 10, 11, is
ing the invention.
supported in a recess formed in the lower forward
Fig. 2 is a side elevation of the machine.
edge of the die and it projects below the bottom
Fig. 3 is a cross section on line 3—3 of Fig. 1.
face of the die and is adapted to contact and hold
Fig. 4 is a plan view of a fraction of one of the the material to be treated on the table or top
conveyor belts, and Fig. 5 is a side view of the of the main frame as hereafter described. The
- plunger I3 carries a knife ZI (Figs. 9, 11) which,
Fig. 6 is. an elevational view of the conveyor when said plunger descends, passes through a slot
or recess 22 formed in the die I8.
driving ratchet.
The cam I9 is so formed and positioned that
Fig. 7 is an enlarged cross section on line 'I-—'I
it causes the die I8 to descend prior to the descent
of Fig. 6.
of the knife. The die retracts with the knife
Fig. 8 is an end elevation of the conveyor driv
until the low side of the cam I9 stops it, the knife
ing ratchet.
Fig. 9 is a plan view of the adhesive applying continuing its upper movement to its uppermost
position as controlled by its driving mechanism.
A glue applying mechanism is attached to the
Fig. 10 is a side elevation of said latter mech
die I8 and comprises a receptacle or reservoir 23
(Figs. 9 and 11) having a plate 24 partly cover
Fig. 11 is a cross section on line II—II of ing the open top of the same. A roller 25, (Fig.
Fig. 9.
11), is revolubly mounted in the receptacle 23, 55
and a series of grooves 26 is formed in the
peripheral surface of the roller. Glue or other
adhesive is inserted in the receptacle at the open
ing 2'! and the roller 25 is turned in the adhesive,
the material being carried up in the grooves 26.
A scraper blade 28 is adapted to bear on the roller
25 and is mounted on a shaft 29 that extends
across the reservoir, and a lever 30 is attached to
the shaft by which the shaft may be turned to
adjust the blade relatively to the roller. Gen
erally the blade is adjusted to‘ scrape the adhesive
from the surface of the ribs 3! on the roller,.»the
adhesive in the grooves being applied to the mate
peripheries of the Wheels 66 and are adapted to
engage in the aperture 63 formed in the belts 64
that are engaged on the wheels 60, 6|. Openings
65 are formed at selected intervals in each belt
and a spring stop 66 is secured on the underside 5
of the belt adjacent to each opening so that the
stop projects through the opening. A frame 68
projects forwardly from the front side of the main
frame and supports a series of rods 69 and cross
rods 19. The rear ends of the rods‘ 16 are slid- 10
ably mounted on a rod ‘l'i supported on the main
frame and the forward ends thereof are slidably
"mountedon the rod '12 so that lateral adjustment
:of the 'rods‘may'be accomplished to accommodate
as will hold the desired amount of adhesive to be various sizes of material. The rods 69 are also 15
adjustable on the rods 16. The Wheels 66, 6|
The roller 32 is supported by the frame 33 that ‘may also be adjusted on their respective shafts
is pivotally mounted on the‘projecticns ‘34 bf the in accordance with the size of the material.
A ratchet wheel 73 is mounted on the shaft 14
opposite side walls of the receptacle by‘the studs
rial being treated. The gr'oc'u'fesv are‘ or such" depth
35. Two plungers 36, opposed by the‘springs 31,
which supports the wheels 60 and an arm 15 20
are mounted in the frame 33 and are adopted to
abut the plate 24. A cam shaft 36 engages the
is pivotally connected to the shaft and carries
upper side'of the frame 33 and'is supported in
the brackets 39 that are mounted on the studs
, 35 and attached by thescrews 46 to the receptacle.
a pawl 16. A rod ‘H’ is pivoted to- the arm 15
and to a crank 18 connected to the shaft 1. The
rotation of the shaft l causes the rod TI to rock
the arm '55, the downward movement of the arm 325
A crank 4! is connected to the shaft 36, the down
causing the pawl '76 to turn the ratchet ‘l3 and
ward‘movement of which causes the frame 33 to
-_ tilt 0n the pivots 35 and‘raise the upper roller
the shaft the distance of one tooth. The ratchet
for stopping the feeding of the ribbon or tape 42.
The plungers 36 normally hold the roller 32 in
contact with the roller 25.
Two channels 43 are mounted on‘ opposite sides
of the receptacle and project rearwardly there
from. These channels serve as guides for the rib
bon or tape 42 formed of suitable material such
as paper board of selected weight. The tape is
in a roll 44 revolubly mounted at one end of the
main frame and it passes between the rollers 25,
32 and through a slot 45 in the forward end wall
of the receptacle 23 and through a V-shaped slot
46 in the die iii. The free end of the tape extends
across the slot 22 in the die I 6 and under the knife
l3 is'preferably adjustably detachably mounted
on a gear '19 that is ?xed on the shaft 14. A
pinion '89 mounted on the ratchet engages‘ thei‘i‘l'ill
teeth of the gear and the ratchet when released
from the gear may be adjusted by rotation on the
gear. The intermittent rotation of the shaft 14
causes the wheels 69 to drive the belts 64 inter
A brake 8! on the shaft "14 prevents3‘35
overrunning of the same at any rotation. A form
of brake is illustrated in Fig.3 in which a shoe
52 is mounted to engage the rim of the wheel 66.
A cam 83 is adapted to force the shoe against
the rim.
A crank 84 is adapted to rotate the camgtm
and an adustablerod B5 is connected to the crank
and to a crank 86 secured to the shaft 81. A
2|. A suitable-number of spring opposed pawls crank 88 is also secured to the shaft 81 and a
41 is mounted in recesses formed in the die H3. ' rod 89 is connected to the crank 88 and loosely
engages a lever 96 that is pivoted at 9| and ens-.545
The pawls project into the slot‘ 22 beneath the
tape and, when the descending knife severs a strip
from the tape, hold the strip in horizontal posi
the brake is caused to intermittently operate.
tion as the knife carries’ the strip through and
out of the slot 22 and presses it ‘onto the object
The springs 93 are attached to the rod 89 and to
the lever so that the rod is resiliently connected
below the die “3, that is being treated. ,
to the lever.
A hand wheel 48 is attached to the shaft of
the roller 32 by which to rotate the rollers for
initially drawing the tape 42 between the rollers.
A gear 49 is attached to the opposite end of the
shaft of the roller 32 and meshes with a gear 56
attached to the shaft of the roller 25. A ratchet
wheel 5! is also attached to the shaft of the
roller 32 and is adapted to be intermittently'ro
tated by a dog 52 (Fig. 14) mounted on the head
2. A stop 53 engages the ratchet wheel to pre
vent overrunning and to lock the wheel against
reverse movement. The dog 52 causes the wheel
5| to rotate on the upward movement of the
A brake 93 (Fig. 15) is also applied to the shaft
74 adjacent to the rachet wheel '13. Other‘similar
brakes 94, 95 are applied to the shaft 3, and the
A guard 45' protects the slot 45 from the ad
gages under a cam 92 on the shaft 1 by which cam
_ a:to
‘shaft '96 of the other head‘ 2','which head is a
duplicate of the head 2 with’like parts, but it ‘isn't-,5
turned around 180 degrees so that the die and
knife face the die and knife on the head 2. The
head 2' is adjustably mounted on the main frame
for. movement toward or from the head 2, where
by to accommodate the machine to various sizesn?o
of box blanks. A similar glue applying mecha
nism 23' and roll of paper board'tape are applied
to the head 2'.
The box blanks which are‘similar to the blank
A shown in Fig. 16 without thev strips B, are feds-.65
consecutively onto the carrier belts between the
‘rods 69 and 16, the guides 98 on the rods 69 and
the receptacle 23 having the slots 56 in the lateral ' the guides 99 on the rods 76 locating the proper
projections 51 thereon to receive the bolts. vWhen position for the deposit of the blanks. The stops 66
hesive material. The bolts 54, (Fig. 9), are pivo -
ally connected to the die»! 8 in the slots .55 therein,
the nuts on the bolts are tightened against the
projections 51 the receptacle is rigidly attached
to the die‘ I8 and hence reciprocates withit.
Two pairs of wheels 6|], 6| are revolubly mounted
on‘ opposite ‘sides of the main frame respectively.
Pins ‘62 project at selected intervals 1from‘~'the
on ‘the belts which are in front of the blank en-" 70
gage the edge of the blank and carry'it in stages
to a positionunder the dies IS, the guides" I00
causing the blank to center correctly on the base
plate or topl?l of the main frame.
The several cams and operating parts are‘cor-i-i75
rectly timed in operation so that when a blank
is carried under the dies 18, those dies with the
attached reservoirs descend and their tension
plates 20 contact with the blank. The knives then
descend, cut off the glued strips B and press them
glue side down onto the blank. The dies and
knives rise and the belts remove the blank just
treated and position the next blank under the
dies and knives. As the die-reservoir units rise
the ratchet wheels 5! on the upper rollers of the
reservoirs contact the dogs 52 and turn one tooth
thereby rotating the rollers and feeding the glued
tapes into the slots 22 in the dies. The next de
scent of the knives cuts off the strips B which
15 drop onto the pawls in horizontal position so that
the knives push them through the slots in hori
Zontal position into engagement with the box
blank. The stripped blanks may be conveyed
from the machine in any convenient manner.
It is thus seen that the box blanks are fed suc
cessively under the knives and the tapes are fed
at right angles to the path of movement of the
box blanks, an adhesive being applied to the un
der side of the tapes as they approach the knives
25 so that the descending knives cut off strips of
the tape and apply two of them to each blank
In Fig. 17, I illustrate a sectional view of a
fraction of a box blank in set up condition show
ing the end wall folded over ‘the collapsed cor
ners and a flap on said wall engaged behind the
strip B.
means to drive the belt intermittently for carry
ing the material into and from registration with
the die and a knife cooperating with the die and
independently reciprocable for cutting a strip
from the tape and applying it to the said material.
2. In a strip cutting and applying machine
a reciprocating die, a reciprocable knife, a flexi
ble belt to feed material to be treated under the
die, means to feed a tape to the die and under
the knife comprising a container for an adhesive 10
substance, a pair of rollers supported by the con
tainer and adapted to receive and intermittently
move the tape between them, one of the rollers
being rotatable in the adhesive mixture and hav
ing a series of annular grooves in its periphery 15
in which'the adhesive is retained and applied to
one side of the moving tape, means to cause rota
tion of one of the rollers, the knife being adapted
to out a strip from the tape and apply it to the
said material, means opposing separation of the 20
rollers and means to separate the rollers.
3. In a strip cutting and applying machine, a
main frame, a head mounted on the frame, a
reciprocable plunger on the head, a knife car
ried by the plunger, a reciprocable die mounted 25
on the main frame and adapted to receive the
knife, means to reciprocate the die in advance
of the reciprocation of the plunger, an apertured
?exible belt adapted to intermittently travel un
der the die for carrying material to be treated to 30
and from the die, a pair of rotatable members
supporting the belt, at least one of said members
having pins projecting from its periphery and
What I claim is:
1. In a strip cutting and applying machine, a
reciprocating die, means to feed a tape to the die
and simultaneously apply an adhesive substance
to one side of the tape, a ?exible belt having de
adapted to engage in certain of the apertures in
the belt for driving the belt and spring stops 35
mounted at other of said apertures in the belt
for engaging an edge of the said material to cause
pressible upstanding stops at selected intervals
of its length for engaging material to be treated,
the material to travel with the belt.
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