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Патент USA US2107043

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Feb. 1, 1938.
A, NOVICK
2,107,043
BLANK ALIGNING MECHANISM AND METHOD
Filed Oct. 7, 1931
IN VENTOR
Abra/mm Nov/‘ck.
9L.
A TTORNE Y5
2,107,043
Patented Feb. 1, 1938
v‘UNITED STATES PATENT OFFICE
2,107,043
IZLANK ALIGNING MECHANISM AND
METHOD
Abraham Novick, Flushing, N. Y., assignor to
F. L. Smithe Machine 00., Inc., New vYork, N. Y.,
a corporation or New York
Application October 7, 1931, Serial No. 567,372
9 Claims. (Cl. 271-50)
The present invention relates to improvements
in mechanism for aligning blanks. In machines
for making envelopes from envelope blanks it is
necessary in feeding the blanks to the folding
6 mechanism to convey them in sequence, one
after the other, in such a manner that each
blank is ‘completely free of its fellows. In some
instances the blanks are previously gummed and
dried while-in a band which is formed by the
10 overlapping of one blank by the other, where
upon it becomes necessary to separate or in
dividualize the blanks and then to properly align
them with respect to the operating mechanism
in order that they may be int correct register
15 with the mechanism accomplishing the subse
l3 which has mounted on it grippers l5, IS, the
action of this element being such that as it ro
tates, the grippers l5, I6 contact with the top
most sheet of the blanks and feed it on individ
ually. Co-acting with the grippers l5, I6 is 'a
pivoted, resiliently mounted counter-element ll
of bellcrank shape, said element being spring
pressed against the portion of the sheet oppo
site the wheel |3 as shown. The blank, which 10
has thus been individualized, falls upon the con
veyor 20 and is held on it by means of the roller
2| which preferably is ‘journaled in a pair of
brackets 23 which are pressed downwardly in a
direction against the blank by means of a spring...15
quent folding operations. In previous devices it
25. The tension of spring 25, however, is such
has been customary to separate the blanks from
the band and then align the bla ks by interrupt
ing the motion of the blanks t regular inter
that the roller bears only lightly on the blank
so that the blank is free to assume any position
20 vals while such blanks are on the conveyor, or
otherwise to retard the movement of the blanks
through the machine.
and place them in correct registry in the ma
chine, without, however, retar ‘mg the move
ment of the blanks, thus making ,for an increased
output per machine. While it is usually neces
sary to align the blanks immediately following
the individualizing operation, the ‘mechanism de
30 scribed may, of course, be used a’ any point in
the envelope making machine wgiere it is de
sired. to align or bring them-into registry with
the machine.
required by the aligning element,‘ to be described.
The pressure of the roller 2| against the blanks 20
is sustained by a table 20a.
Said aligning element comprises preferably a
<
The present invention aims to ialign the blanks
\i‘
In accordance with the present embodiment
35 of the invention, each blank after having been
separated from the stack or band by an individ
ualizing device is placed upon a conveyor or con
40
this band one by one by means of rotating wheel
veying element which preferably has<_ aj’ linear
speed somewhat faster than such d’vice, the
blanks being constrained to have the
vement
of the conveyor by means of an element supply
ing the necessary pressure upon the blank against
such conveyor. While the blank is thus travel
ling on the conveyor, it is acted upon by a
'
pair of chains 21 on either side of the conveyor
20 having thereon pins 28, said chains being
driven by sprocket wheels 3|, 3|, 3|, 3|. It will
be noted that .the brackets 23 are pivotally held
in a clamp member 24 which is adjustably held
upon a longitudinal member 24a.
In the operation of the mechanism, the blank
having been fed out upon the conveyor 20 passes 30
between that conveybn‘and roller 2| which causes
it to have the motion of that conveyor. It is
then acted upon by the pins 28 of the chains 21,
21, which move at a somewhat faster speed than
the conveyor 20, ‘and thus enable the pins to
overtake the blank, and, aided by the roller 2|,
effectively register the blank on the conveyor,
this action being shown in Figure 2. The blank
is now ready ,for the folding mechanism, the
scoring elements 35, 35 of which are seen in Fig 40
ure 1. Roller, 2| bears on the blank just lightly
enough to cause it to have the motion of the con
veyor without preventing the movement of ad
justment of the blank caused
the action of ,
45 ther conveying element which travels at a gre --, K the pins 28.
er speed than the blank to push it from behind
and thereby to accomplish the correct registry
of the blank with reference to the machine.
The invention will be best understood from
50 the following description taken with the annexed
drawing, in which
Figure l is a view in side elevation of a pre
ferred embodiment, while Figure 2 is a plan view
of a part of the mechanism shown in Figure 1.
Referring now to the drawing in greater de
55
tail, the blanks Ill are shown within a hopper II,
the blanks being formed in a band such that each
blank overlaps the next, and in the partic lar
instance shown the blanks have just eme ed
60 from a drying way. The blanks are fed from
45
\f
" ‘I have described whatI believeto be the best
embodiment of my invention. vFido not wish,
‘however, to be con?ned to the ‘embodiment
shown, but what I desire to cover bylLétters Pat
to
ent is set forth in the appended claims!
-
I claim:-
.
‘1
1. In an envelope making machine, mechanism
for aligning blanks comprising a relativelyplow
moving conveyor, means for feeding said blanks
upon the conveyor in separated condition,-a‘con 55
tact element pressing the blanks at a medial
region thereof yieldingly against the conveyor
so as to cause them to assume the movementmo
the conveyor but also allowing ‘for movement of
adjustment of the blanks witliv reference to the 60
v
/
2,107,048
conveyor, and secondary conveyor mechanism,
formation with said ?aps
'
, and an indi
vidualizing mechanism for removing blanks from
faster speed than, the conveyor ?rst mentioned said overlapped formation‘ so that said blanks
and having thereon blank engaging means adapt may be passed individually into and through said
ed to m the blank at opposite sides of said operating mechanism, the combination therewith
medial region and to push the blank from behind of means for conveying said blanks from said
and, aided by the contact element, to eifect an individualizing mechanism‘ to said operating
mechanism, said means including a conveying
alignment of the blanks,
1
2.- In an envelope making machine, mechanism device engaging said blanks from behind in the - -'
corners formed between said wedge shaped ?aps
10 for aligning blanks comprising a conveyor, means
' adapted to move ‘in juxtaposition to, and at a
for feeding said blanks upon the conveyor in
and the bodies of the blanks to effect alignment
separated condition, a contact element pressing
the blanks against the conveyor so as to cause
them to assume the movement of the conveyor
16 but also allowing for movement of adjustment
of the blanks with reference to the conveyor, and
thereof and deliver them so aligned into the
operating mechanism.
,
_
7. In an envelope making machine, charac
terized by mechanism for operating on individual
blanks having ?aps forming re-entrant corners
a second conveyor adapted to move at a faster with the bodies of the blanks, a conveyor for
speed than the conveyory?rst, mentioned com- ‘‘ conveying a series of blanks in overlapped forma
prising a pair of conveying elements on either tion with said ?aps trailing, an individualizing
mechanism for removing single blanks from said 20
20 side of the conveyor first mentioned, said con
veying elements having thereon blank engaging
elements which push the blanks from behind
and, aided by the contact element, effect an
alignment of the blanks.
25
"
3. In an envelope making machine, mechanism
for individualizing and aligning envelope blanks
comprising an individualizing device proper by
means of which the blanks are separated from
' a collated condition, a relatively slow-moving
30 conveyor upon which said blanks are fed by the
individualizing device, a contact element press
ing the blanks at a medial region thereof yield
ingly against the conveyor so as to cause them
to assume the movement of the conveyor but
35 also allowing for movement of adjustment of the
blanks with reference to the conveyor, and sec
ondary conveyor mechanism adapted to operate
at a faster speed in juxtaposition to said slower
moving conveyor, and'having thereon means for
40 engaging the blank at opposite sides of said
medial region and for pushing the blank from
behind, to act, in cooperation with said contact
element, to align the blank.
4. The method of aligning blanks having wedge
45 shaped flaps which consists in feeding the blanks,
'upon a' travelling conveyor in separated condi
tion, with said ?aps trailing, moving said con
veyor at a speed at least equal to the rate of
feed of the blanks to said conveyor and then
aligning the'blanks while on said conveyor by
engaging them at a reentrant corner at each
overlapped formation, said mechanism compris
ing a rotating wheel having mounted thereon
elements for gripping the uppermost of the sheets
arriving at the said wheel and pulling said sheet
at increased speed out of said overlapped forma 25
tion, a counter-element mounted adjacent said
wheel and cooperating therewith for restraining
blanks under the said uppermost sheet from fol
lowing said sheet in its movement in response to
said gripping elements, and aligning mechanism
for engaging said blanks at each side at said re
entrant corners, thus aligning them while "con
veying the individualized blanks into said oper
ating mechanism.
8. In an envelope making machine, mechanism
for aligning blanks comprising a relatively slow
moving conveyor, means for feeding said blanks
upon the conveyor in separated condition, a con
tact element pressing the blanks at a medial
region thereof yieldingly' against the conveyor
so as to cause them to assume the movement of
the conveyor but also allowing for movement of
adjustment of the blanks with reference to the
conveyor, and relatively faster-moving secondary
conveyor mechanisms, one on either side of, and 45
in juxtaposition‘ to, said ?rst-mentioned con
veyor, having thereon blank-engaging means
adapted to push the blank from behind and
effecting an alignment of the blanks, aided by
the contact element.
9. In an envelope making machine, mechanism
side thereof, and pushing them from behind by
aligning elements moving at a higher speed than
for individualizing and aligning envelope blanks
comprising an individualizing device proper by
said conveyor engaging the corners formed by
means of which the blanks are separated from
a collated condition, a relatively slow-moving 55
conveyor upon which said blanks are fed by the
individualizing device, a contact element press
55 the said flaps and the bodies of the blanks.
5. The method of aligning blanks having wedge
shaped ?aps which consists in feeding the blanks
upon a conveyor in separated condition, with said
flaps trailing, moving said conveyor at a speed
60 at least equal to the rate of feed of the blanks
tosaid conveyor and then ‘aligning the blanks
while on said conveyor by pushing them from
behind by aligning‘ elements moving at a slight
ly faster speed than said conveyor and engaging
65 the corners formed between said flaps and the
bodies of the blanks, while loosely constraining
the blanks, by yielding pressure against a medial
region thereof, to move with said conveyor.
6. In an envelope making machine of the class
70 comprising a mechanism for operating on indi
- vidual blanks having wedge shaped ?aps, means
for conveying a series of blanks in overlapped
ing the blanks at a medial region thereof yield
ingly against the conveyor so as to cause them
to assume the movement of the conveyor but also
allowing for movement of adjustment _of the
blanks with reference to the conveyor, and sec
ondary conveyor mechanisms adapted to operate
at a faster speed in juxtaposition to. saidlslower
moving conveyor, one at either side thereof, and
having thereon blank-engaging means‘ adapted
to push the blank from behind, and which effect
an alignment of the blanks, aided by the contact
element.
'
'
,
ABRAHAM NOVICE.
10
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