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Патент USA US2404156

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July 16,' 1946.4`
„
B. R. ABBOTT
` I
MACHINE DRIVE
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Filed April 1o, 4194s
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Patented July 16, 1946
4 2,404,156l
Boyd R. Abbott, Norristown, Pa., as'signor to Arm
strong Cork Company, Lancaster, Pa., a corporation ¿of Pennsylvania
’
i
`
Application April 1o, 1943, seriarNo. 482,644
` >s claims. (cwi-221)>
align the driving pins asfwiu fully be described
This invention relates to a A,machine driveand
more particularlyto a drive for imparting a pre
later,
chine.
,
'
Y
In Figure 1 the machine to- be‘\driven is gen
determined intermittent motion to a machineto
be driven, with` provision for varying the time in
terval between intermittent moves of the ma
, erally indicated by the numeral I2 and in this em'
bodiment takes the form ofV a circular band I3
(shown in section in Figure 3) having a series of
posts I4 uniformly spaced about the circumfer
ence of the bandftwo posts ÁI4 being shown in
The drive- has particular usefulnessy in
rotary type forming machines such as that dis
closed in my application Serial No. 482,645, filed
Figure 1. 'These posts I4 are ,eiiective for trans
in a plurality of molds are intermittently moved 10 mitting power from they chains 8 to the band I3
to rotate themachine I2, the magnitude of move
into a series of stations positioned along the path
ment on each intermittent operation of the drive
of travel of the molds and at these stations opera
April 10, 1943, entitled “Forming machine” where
tions are` performed to produce the final product.
Inthis machine, it is desirable to move the train
being equivalent to the space between adjacent
performed consume 'considerable time.
posed vertically between the two horizontal runs
of chain 8 (see Figureß). In the embodiment
posts I4.v
,
`
of moldszas quickly as`possible between stations 15 '- As shown in -Figures 2 and-3, a driving pinl I Snis
but to permit a relatively ylonger dwell Vin the ’
attached tothe two chains 8 so as-to span vthe
space between them. The driving pin I6 isdis
various stations for some of the operations tobe
'
>
With the device of the present invention, itis .
possible to impart a relatively rapid movement to 20
the lmachine and to control the starting of the
drive by an electrical timer> or manually so that
the time intervall between intermittent motions of
the drive may be of any desired length.
shown, there are two such driving pins I6 spaced
at points I1 and I8 as indicated in Figure' 1.v The'
pins I 6 are positioned to engage the posts I4 and
by such engagement move the machine I2 in the
direction ofl the arrow in Figure 1; that portion of
the run of the chains 8 between the idlersprock;
A
The drive is designed to be .useful to transmit
ets I0 and II parallels the path of movement of
the machine I2, andas the pin I6 at location I8
moves about vthe sprocket I I, it is disengaged from
considerable power, for in, devices such.y as the
forming machine referred to above, many horse
power are required torotate themachine, and
particularly to start rotation.v
'
j
~ the post I4. and movement of the machine is ar-l
, ,
The invention> will be described in connection 30 rested until the pin at location I 'If comes into
engagement with the next rearward` post I4'ad
with the attached drawing in which
’
jacent the sprocket Iß upon the next intermittent
Figure 1 is a top plan view of the drive ar-`
motion'of the drive. The pins lßautomatically
rangement as applied to a rotary machine of the
disengage from the posts VI4 _because the chains
type disclosed in my copending application above
35 8'to which theyrare attached run in a direction
identified.
substantially parallel to the surface of thepost
Figure.2 is a detail view of the electrical switch
which is engaged by the driving pin as the chains
arrangement;
Figure 3 is a sectional View taken on the line
8 pass about the sprocket I I.
\
40 approach and engage the posts I4, the pair of
aligning arrangement; and
Figure 4 is a wiring diagram showing a typical
electrical control arrangement.
Referring to Figure 1 the drive consists essen
I
tially of a motor 2 which drives a pair of sprockets
3 through a gear reduction 4 which is connected 45
Y
_ VThe sprockets 3 drive apair vof belts 8 in the
sprockets It is mounted for adjustment in a
forked bracket I9 pivoted about the bolt 20. A
lug 2| (Figure v3) is ñxed tothe bracket I9 and
is providedA with an opening 22 through which
passes a threaded adjusting bolt 23 (Figure 1).
" One end of the bolt 23 isA fixed’to an angle sup
to the motor 2 through a sprocket 5, a chain 5,
anda sprocket 1 aiiixed to the drive shaft of the
motor 2.
.
To insure that the drivingpins I 6 will properly>
3_3 of Figure 1 and showing the driving pin
port 24 and the opposite‘end/is lreceived in the
V
opening 22„A Adjusting nuts 25 and 26 are pro
. vided on the bolt 23 and thek position of the
form of roller chains, the paths of travel of both 50 sprockets `I0 is determined by movement of the#
nuts 25 and,26 which are eiiective for rotating
chains being identical but in different horizontal
the bracket I9 about the pivot 20. o
„ „
" ,
planes. The> path‘of travel of the chains 8 is
.In orderto compensate for any change in the
determined by pairs ofv idler sprockets 9, l0, and
II. v'I’hesprocketst and II are fixed in penna#- . tensionon the chains 8 dueto adjustment ofthe
nentl position but the sprocket I0 is adjustable to
sprockets I0 and to insure that the proper tension .
2,404,156
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3
4
is always applied to the chains, a pair of tighten
ing sprockets 25’ is provided añîxed to the bracket
motor 2 will run until control pin 34 on chains 8
engages the roller 33011 contact arm 32 of switch
3|, whereupon current from the source S to the
magnetic switch 36 will fail and contact 38 will
immediately open,V stopping motor 2., Contact
25’ and an adjusting bolt 29 is secured to the ma
chine frame. An adjusting nut 30 is effective for
rotating the bracket 26’ about the pivot 21 to
move the tightening sprockets 25' toward or away '
pressed, completing the circuit for magnetic
shown in lFigure `-1, itbeing disposed below the top
l
i
` The
spacing
of
>
the; 'posts
'
I4
switchtlì.'V
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A
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10 Y In‘mos't cases the pu's'hbutton Y3'! will be reT
"
is
arm 2,8 cannot be brought into engagement to` »,
start motorV 2 until push button 31 has been
i' from the chains 8. A locking nut is provîded‘on
' the opposite Side of the lug 2.*_8but this is not
oi the bracket 26’.
f '
Y
uniform
;
throughout the -entire circumferenceY of ¿ theî'
rotary machine to be driven and the movementí.
accomplished upon each intermittent ,operation
.placed Vby an automatic timer indicatedin dotted
*lines in Figure 4 and designated AT which willA
',.pe'riodically closethe circuit kfor .the magnetic.
switch 3,6, thus _starting up the motor 2 and caus
of the drive is equivalent tothe'distance'between‘ i j ing apm'otionv ¿of .thedrive to be effected equiva
.the surfaces of the posts which' are engaged by ' Íle'ntïlto Íthe'ïdi'stance betweenfthe'driving posts,
the?driving pins I6, so that upon each intermit-`
tentfmotionof the drive, the machine ¿is lrotated , .
for a portionof a revolution, each portion being .
of the same magnitude. Thus, the machine may
I1 and iii.V ~I~n most intermittent drives, how
be lprovided on the machine toV complete Vthe
20Y timer circuit only when the various: operating-.
devices positioned along-the path of travel _of the i
machine ‘have lbeen properl-yfcleared. i
YWhile 'I ïhave' illustrated land »described Aa' pre
be intermittently moved' by rotating the driving Y
chains ‘f8 continuously, -'the -periodo'f -dwell being
determined by the speed of rotation of the chains
3 Yand the spacing _of the drivingpins i E' at-points
'the'ïdrivefbeing rautomatically stoppednby the
Ȕlirnitjswitch :3]1; If'desired', safety switches may
' 'ferred'ìembodiment ofV my invention;V it will >be
25 understood that the same maybe otherwise em-`
ever, -it is desirable' to provide ffor a much longer
bodied and practiced w-ithin the scope of the Vfol
dwell than would be possible with -a relatively '
lowingclaims.
'
compact drivegfor, if> a >long dwell is required',
-1.» _In a drive 'forla member to lbe driven having
Vthe machinemust beeither rotated very slowly
‘ori a -relatively longmpair »of chainsß must be 30 a series of-spaced vposts associ-'ated therewith toVV
be engaged 'bydriving means, rdriving means
provided so that the ¿driving `Vpins I6 may be
"-I claim:
spaced a «considerable distance apart. The mo
tion 'of theymac-hine »l2 »will of course cease upon
>
Y
.
.
i
comprising a àdriven.~endless conveyor moveable
for japortion »of -i-ts ‘run along >'the Ipat-h of travel
movement of -thepin Iïâ which happens to be in
of Athemernber »to be driven, a-driving pin/carried
engagement with a driving post I4 out of» engage v35 by said conveyor and ßengagea'ble with a post as
Vment therewith land «further'motion will be'ef- l sociated with «the 'member to beïdriven to -impa-rt
fected Aonly _whenïanother
engages lthe next
driving post iii r-spacedf-to 'the rear in the direc
y tionoof travelof the machine vto I'be driven.
AThe timing Aof the drive may be conveniently
controlled electrically to start and stop the mo
Thisj-is illustrated in «Figures r1 and 2 -
where a limit switch _3| is provided having `a con
tactlarrn Í32( Ycarrying a roller ¿33. VThe arrange
ment ofthe switch SfI-is such that when »the arm
32 is rocked, the circuit which it controls will
Y be `broken ibut will be made again Vas soonas the
arm 32returns to its normal position. A control
vpin 34 is Vmountedon the vupper run of chainy lif Y
Inotion ‘to said -memben-an electric motorffor
driving saidv conveyor, and means for automati
cally controllinght-he 'movement -of the conveyor
comprising-a, magnetic switch forcontrolling the
supply of currentto >said motor, a'limit switch
injcircuit w-iththe vmagnetic switch'ïfor inter
rupting the supply oïf current `thereto to cause
said magnetic switch to «open and interrupt the
supply of 4current «to saidmotor, a normally open
switch in lcircuit with said »magnetic switch `for
connecting lthe magnetic >switch in circuit with
the :current source of‘ suppl-y therefor, a timer
for
periodically
closing said
normally
open .
andthe >limit switch 3| is adäustably mounted 50 switch, and tripping ¿means --carried >by said »con
upon a bracket ¿i5 to rbringrthe roller 33 into’ithe
path Yof travel of the pin 34 -so that upon move
veyor -for actuating Ysaid @limit »switch uponcom
pletion of each intermittent-movement of Asaid
ment of the pin 34 past the station at which ‘the e
member-to vbe driven.
‘ >switch 3l islocated the pin 34 will rotatethe arm
32Íbreaking 'the circuit,` but as soon as theroller
33 passes Aover the pin 34, the switch 3l will lagain `
be in closed position. l As shown >in Figure2 the
Vpin3¢i is mounted Ain the same position as ¿the '
Y driving pinrlû and one con-trol pin will'be vpro
vided for each driving -pin I6 so as to stop the 60
motor «2 upon each movement of the drive equal
to thedistance between the posts -I 4,
'
2. In adrive for a member to .be driven having
a series A`of equally 'spaced' posts carried by said
member to be engaged by driving means, driving
means comprising a driven 'endless conveyor
moveable for a portion of its run along the path
of travel‘of the member to be driven, a drive pin
carried by saidconveyor and engageable with a
post associated with the member lto be driven to
»
impart motion to said member, ‘an electric motoriV
Figure iis a wiring diagram vshowing'a typical
for driving said conveyor, Vand means` for vauto-r '
arrangementvfor controlling the'motor 2. Cur
matically vcontrolling Ythe `movement V'of the con-erent is'fed _from thesource S directly to one 65 veyor comprising ‘airmagnetic switch,'a limit`
side of the motor 2 and the Yother side of the
switch, and a normallyropen. timer controlled
source is controlled by the switch 3l.r A mag
Y switClLthe loperatin:§._,f winding -of Asaid magnetic
ïnetic switch 36 is eiîective for'completing the cir
switch being connected to one side of -a vsource
cuit from the source S to the motor 2 when the
of current through said limit switch andito ‘the
switch 3i 'is closed. In order toenergize the .701 otherside of _said source throughsaidtimer con- '
magnetic switchj3j6 a push button l3711s provided
troll'ed Lswitch and motor, Vsaid operating windingv
which 'closes the circuit for the switch 36 'where-4
upon its contact arm „38 willbe elevated >and 1the ~
holdingsaidswitch ’in circuit `making condition
' ‘circuit for> themoior '2 wnibe completed; 'rige ~
motor operating, 4automaticallyy falling to ‘circuit
Y push. buttonV
Vmay be then >released Aand „the
only so longas lsaid limitgswitch‘is closed and the
breaking @edition ‘1.11.1011 epilation ciuSaidglimït
2,404,156
5
switch, and means carried by said conveyor for
tripping said limit switch upon completion of
each cycle of movement of the member to be,V
driven.
.
l 3. In a drive for a member to be driven having
a plurality of equally spaced posts to be engaged
by driving means, driving means comprising an
endless conveyor having a portionof its run along
the path of travel of the member to be driven,
a plurality of equally space_d driving pins carried
by said conveyor and sequentially engageable
with said posts to move said member to be driven
a distance equivalent to the distance between the
driving posts on each sequential movement of the
drive, means for automatically controlling the
movement of the conveyor comprising an electric
motor for driving said conveyor, a magnetic switch
for controlling the supply of current to said
motor, a limit switch in circuit with said mag
netic switch for interrupting the supply of cur
rent to said magnetic switch to cause the same
6
to impart motion to said member after engage
ment of said pin with said post.
5. In a drive for a member to be driven having
` secured to said member spaced posts to be en
gaged by the driving means, driving means com
prisinga pair of spaced chains having parallel
runs in different planes, means for moving said
chains in a closed path, a driving pin connected
to said chains and engageable with a post on said
member to be driven to impart motion to said
member, means for directing said chains along
a portion of their runs in a direction substan
tially parallel to the surface of the post which
is engaged by the driving pin to bring said pin
into position for engagement with said post close
to the point of connection of said post to said
member, and means spaced from said first named
means for directing said chains along a portion
of their runs in a direction substantially parallel
to the surface of the post which is engaged by the ,
driving pin to withdraw the pin from engagement
to open and interrupt the supply of , currentA to
with said post.
magnetic switch and thereby break the circuit
rality of driving pins connected to said chains
and sequentially engageable with said spaced
6. In a drive for a member to be driven having
the motor, a normally open switch in circuit with
secured to said member a plurality of posts equally
said magnetic switch for connecting the mag
netic switch in circuit with the source of current 25 spaced about the periphery'of. said member, driv
ing means comprising a pair of spaced chains
supply therefor, actuating members carried by
having parallel runs in different planes, means
said conveyor and effective for tripping said limit
for moving said chains in a closed path, a plu
switch to interrupt the supply of current to said
for the source of supply of current to the motor,
one switch actuating member being provided for
each driving pin so as to stop said conveyor after
each intermittent move of the member to be
driven equivalent to the distance between the
posts carried by the member to be driven.
4. In a drive for a member to be driven having
secured to said member spaced posts to be en
gaged by the driving` means, driving means com
prising a pair of spaced chains having parallel
posts on said member to be driven to impart
motion to said member, means for directing said
chains along a portion of their runs in a direc
tion substantially parallel to the surface of a
post which is to be engaged by a driving pin to
bring said pin into position for engagement with
said post close to the point of connection of said
post to said member, means for moving said
chains along an adjacent portion of their runs ‘
runs in different planes, means for moving said 40 in a direction substantially along the path of
travel of said member to impart motion to said
chains in a closed path, a driving pin connected
member after engagement of said ‘pin with said
to said chains and engageable with a post on said
post, and means spaced from said ñrst named
means a distance equivalent to the distance be
a portion of their runs in a direction substantially 45 tween spaced posts on said member to be driven
for directing said chains along a portion of their
parallel to the surface of the post which is en
runs vin a. direction substantially parallel to the
gaged by the driving pin to bring said pin into
member to be driven to impart motion to said
member, means for directing said chains along
position for engagement with said post close to
the point of connection of said _post to said mem
surface of the post which is engaged by the driv
ing pin to withdraw the pin from engagement '
ber, and means for moving said chains along an 50 with said post, with the’next rearward post in
position to receive the next forward driving pin.
adjacent portion of their runs in a direction sub
BOYD R. ABBO’I'I'.
stantially along the path of travel of said member
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