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Патент USA US2134018

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Oct. 25, 1938.
E. R. ALDl-:RMAN
2,134,018
DETECTOR FOR STOP MOTION MEOHANISM IN WINDING MACHINES
Filed March 25, 1957
4 Sheets-Sheet -l
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ATTORNEYS
Oct. 25, 1938.
E. R. ALDERMAN
2,134,018
yDETECTOR FOR STOP MOTION MECHANISM IN WINDING MACHINES
Filed Maron 25, 1937
4 sheets-sheet 2
INVENTOR
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ATTORNEYS
ÜCÍ. 25, 1938.
'
E R, ALDERMAN f
.
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2,134,018
DETECTOR FOR STOP MOTION MECHANISM IN‘WINDING MACHINES
Filed March 25, 1937 v
4 Sheets-Sheet 3
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57
56’
49
ATTORNEYS
@ai 25, 1938.
E. R. ALDERMAN ~
2,134,018
DETECTOR FOR STOP MOTION MECHANISM IN WINDING MACHINES
Filed March 25, 1937
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INVENTOR
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BY
ATTORNEYS
'
l 2,134,018
Patented Oct. 25, 1938
UNITED STATES PATENT orties ~
2,134,018
DETECTOR FOR `STOP MOTION MECHANISM
IN WINDING MACHINES
Eugene R. Alderman, South Hadley,
signor to Foster Machine Company,
Mass., a corporation of Massachusetts
1937, serial N0.i133,050
Application March 25,
(c1. 24a-3i)
2 - Claims.
This invention relates to winding machines,
Y
looking in the direction of the arrow;
and has for its object lmore particularly an im
'
,
Rg. 5 is a detail View in side elevationof the
provement in stop motion mechanism for stop
ping the winding spindle when the yarn on the
supply bobbin becomes exhausted and before the
detector mechanism;
,
'
Fig. 6 is a top plan view of the same; '_
Fig. 7 is a section along line 1--1 of Fig. 5,
looking in the direction of the arrows;
Fig. 8 is a View along line 8--8 of Fig. 9, show
ing in detail a front view of the tripping latch
exhaust `end of yarn has been wound on .the
package.
~
Fig. 4 is aview alo-ng section 4%-4 .ofFig 3
'
In order that the stopping shall occur lbefore
the exhaust end of yarn has been ,run in through
10 `the several guiding and tension devices onto the
arranged for electrical operation;
'
j
, _
Fig. 9 is a side elevation .of the detector and
winding package, the improvement provides for
tripping mechanisms arranged for operation
a detector mechanism at a point closely adjacent
the end of the supply bobbin which will be nor
electrically;
and
'
y
,
Fig. 10 is a detached detail view of the supply
15
bobbin .spindle and its Spring retainer.
mally kept inactive by the tension of the yarn
#15 coming off the supply bobb‘in and which will serve
. The- winding machine to which the present in- `
to actuate suitable stop mechanism immediately
ywhen the last end of `the yarn runs off said sup
ply bobbin. By vstopping the winding spindle in
-this manner it becomes feasible to arrange a con
.20 venient position for tying in a new end of a full
bobbin before the exhaust end runs through the
guiding Ydevices and thus avoid the trouble .and
vention is applied is of theV usualwell known
character and comprises a main frame l, swing
ing support 2 for Vwinding spindle 3, the 1atterbe«
ing driven by surface contact of its package 6 20’
with the usual driving roll 4 of the machine'. YA'
brake and throw off armlìextends beneath and
slightly spaced from the yarn package 5 being
Vwound on the spindle 3 and saidarm 5 is ad
25
A further feature of improvement in conjunc .justably mounted upon an angle member ‘l piv
oted
on
the
main
frame
at
8.
A
rocking
of
_said
tion with »such means for quickly stopping .the angle member 'i to the dotted line position shown
Winding spindle upon exhaust of the supply is an
arrangement for having the last end of yarn left in Fig. l will lift the .winding spindle> 3’and its
package 6 from’ the driving roll 4 ` and >effect
hanging in convenient position for the operator stopping
of the same by the brake action of said
to tie in the new supply without the necessity
arm
5.'>
The
angle member l is under the stress
as heretofore >or" manually rethreading the new
of a spring 9 tending at all times to rock it coun
end through the several guiding and tension de
terclockwise into its stopping position. It is nor
vices .and without `the trouble of hunting for the mally held from such rocking action by reason
lloss of time of manually threading in the new
end.
\
,
'
.
‘
exhaust end on `the wound package. This ar
35 rangement saves the time and labor of the opera
tor and avoids Wastage of yarn.
of a forward Ynose portion l0 integral with the ,
.
In the following description the term “bob
bin” as used is intended to mean any form of
supply such as from a bobbin, cop, quill, etc., and
the term “yarn” will be referred to as meaning
40 any fiber used in textiles such as wool, cotton,
silk, etc., or any material being Wound, such as
Wire, paper, glass, etc.
Full advantages of »my new improvement will
become more clearly apparent from the follow
ing specification, taken in connection with the
accompanying drawings, in which
Fig. l is a side elevation of a winding machine
unit showing the stop motion and yits associated
y50
mechanism;
.
_
Fig. 2 is a similar View in part showing the
position of the mechanism when the winding
spindle is stopped;
y
Fig. 3 is a detail view somewhat enlarged show
ing in front elevation, the latching member;
lower arm of the member fl which is adapted to
rest against a cam block il, the latter forming
part of a knock olf plate l2- pivoted at` >It on the `
main frame. Theknock off plate l2 carries at its
under side a bell crank lever or knock olf dog 40
i4 pivoted at I5 thereon and having its down-r
wardly extending arm' I6 adapted to fall into po
sition so as to vbe engaged by teeth of the usual
constantly rotating kicker shaft , I1.` When the
said arm I6 is engaged by the kicker shaft Il
the knock off plate is thrown upwardly in the
usual manner 'to release the cam block Il from
beneath the nose l0 of the angle member? for ’
stopping the winding spindle, and the parts in
this knock off position are shown clearly in Fig. 2. 50
The knock cli dog i4 has extending >forwardly
thereof a tripping member I8 and is adapted to
be held in normal inactive position by a latch
i9 as lshown in Fig. 1. The latch I9 is in the
form of >a flat »narrow-edged blade ñxed to a latch 55
2
2,134,018
member 20 pivotally mounted as shown in Fig. 3
by bearings 2| and 22 upon a ñxed bearing rod 23
which extends laterally from a bracket 24 ex
tending from the main frame. The latch mem
ber 20 has a crank arm 25 which is adjustably
connected by a rod 26 to the detecting mecha
nism hereinafter described. The rocking move
ment of the latch member 20 upon its bearing rod
23 is limited by a stop piece 21 adapted to be ad
10 justably fastened by a stud screw 28 to said bear
at the upper end of said standard 41 is adjust
ably mounted a supporting- bracket 48. At the
forward end of said bracket 48 is mounted a
bell crank lever 49-50 pivoted at 5I thereon and
the arm 50 of said lever is connected by the
previously described connecting rod 26 to the
crank 25 of the tripping member 20.
Referring to Fig. 5, a fork finger bracket 52
is fastened to the support bracket 48 and extend
ing from the upper end of said bracket 52 are 10
ing rod 23. The stop piece 21 has spaced bosses
fixed two parallel horizontal fork fingers of wire
29 and 30, one at each side of the tripping mem
ber 20 as shown in Fig. 4. Extending downward
V53 and 54. ‘Pivotally mounted on pivot stud 55
of said bracket 52 is a third horizontally extend
ly and forwardly from the main frame I is a
15 bracket 3I which supports at its lower forward
end a. supporting rail 32 extending lengthwise of
the machine and upon this rail v32 is aflixedly
mounted the aforesaid bracket 24 by stud Vscrew
33. It will be understood that winding’machines
20., `of this: character usually comprise several Wind
ing units and individual stop mechanisms for
the same and that the longitudinally extending
rail 32 supports several supply bobbins at inter
vals along the same.
As shown- in'Fig. 2 a bob
25 bin pin support 34 extends forwardly from the
bracket 24 and adjustablyrsupports at its outer
end the bobbin pin 35. A base member 36 for
seating the bobbin 31 is adjustably fixed in suit
able position on said pin 35.
As kshown in Fig. 10,
30 a spring retainer 38'is mounted on the bobbin pin
ing wire finger 56 located halfway between the
aforesaid fixed fingers 53 and 54. The outer ends 15
of the two fixed fingers 53 and 54 are bent in one
direction and the outer end of the intermediate
finger 56 is bent in the other direction to facili
tate the threading of the yarn strand, between
said fingers, that is against one side of the two 20
fingers 53 and 54 and against the other side of
the finger 56, as will clearly appear in Figs. 5
and 6. A torsional spring 51 is arranged in con
nection with the movable ñngers 56 tending to
' swing the same between the two'fixed fingers 53
and 54 in a clockwise direction as shown in
dotted lines in Fig. 6. A rear end or tail portion
58 of said movable finger 56 is at the other side
of its pivot so as to engage the arm 49 of the bell
crank 49-50 previously mentioned, and when
35 for firmly retaining the bobbin thereon. 'I'his said movable finger 56 is permitted tomove to its
spring retainer is preferably formed of tubular dotted line positionA as shown in Fig. 6, the bell
'sheet steel with bulbous portions 39 >having slits ' crank lever 49-50 will be operated in the proper
40 therein so as to _compressibly fit within the manner for removing the latch I9 from beneath
core of the bobbin and accommodate> itself to the tripping member I8 and thus cause a stop at
bobbins having cores of slightly different diam
ping of the winding spindle. The inward or
eter.
I
`
clockwise swinging movement of the finger 56
As shown in Fig. 1, yarn y is drawn from the about its pivot 55 is limited to the dotted line
supply bobbin upwardlyV through ,detectingV mech 'position of said finger as shown in Fig. 6, and
-40 anism and then for a considerable vertical dis
the outwardly bent end portions of saidflngers flo
»tanceto the linitial yarn guide andtension de
v.form .a flaring entrance for threading the yarn
vice 42, the latter being carried upon arm 4Il ex
between the >fingers as above stated. The limit
tending upwardly and forwardly from the main ing stopV for‘the inward movement of finger 56
frame of the machine. The initial guide and is furnished by the lug 29 on stop piece 21 by`
tension» device 42 comprises the usual spring -reason of the connective devices shown.
pressed roll members and may have any Suitable
In the normal running of the winding spindle
wire guide, not shown, for keeping the yarn from the' yarn as it is drawn off at high speed from
jumping said roll. From the roll 42 the‘yarn y >the supply bobbin 31 balloons out as shown in
is led downwardly under and over tension guide Fig. 1 and creates a sufficient tension at each
rollers 43 and 44 through the eye145 ofthe usual >side of the detecting device so that the yarn in
drop wire detector and then upwardly again to traveling between the three fingers of said de
the traversing guide 46 and thence to the Wind
tecting device will hold the movable finger 56
ing package 6 upon the winding spindle 3. The in substantial parallelism with the two fixed fin
vertical distance between the top of the supply gers 53 and 54V as shown in full lines in Fig. 6.
bobbin 31 andv the initial yarn guide and tension
.device 42 is intended to be shown in Fig. l as
being sufficient to permit a stopping of the yarn
by the detector mechanism as hereinafter de
scribed, as soon as the last end of yarn leaves
60 the supply bobbin and before it runs over the`
initial guide device42. For this purpose the ini
tial guide device 42 is arranged at about the
height of the ordinary operator’s head whereas
the supply bobbin support is about waist high.
By this arrangement the exhaust end of yarn
will be left hanging from the guide device 42 in
convenient position for the operator to tie in the
new end of a full bobbin.
_
The ldetecting mechanism for determining
70 when the exhaust end of the yarn comes oif'the
supply bobbin and thereupon actuates the stop
ping mechanism is preferably located as shown
in Fig. l just above the upper end of said supply
bobbin 31. A vertical standard 41v extends up
75 wardly from the longitudinal support rail 32 and
When the exhaust end of yarn comes off the
'ss
supply bobbin the Vtension of the yarn below the
detecting device ceases and the movable finger 56
is permitted to swing inwardly to its dotted line
position shown in Fig. 6 whereby as described the
tail end 58 of said movable finger actuates the "co
bell crank 49-50 which in turn moves the latch
I9 from under the trip member I8 and permits
the latter to drop. The tripping movement of
the knock off dog I8-I4 causes the knock off
plate to be thrown upwardly by the kicker shaft “65
I1 and releases the tilting angle member 1 which
by` means of its arm 5 throws up the winding
spindle 3 and at the same time applies a brake
thereto for stopping it. This stopping will take
place before the exhaust'end of the yarn reaches 70
the initial yarn guiding tension device 42 whereby
the exhaust end will be hanging in convenient
position for the operator to tie in a new end of
a full Asupply bobbin which replaces the empty
'bobbin on the bobbin pin 35. By this arrange
2,134,018
ment the necessity of manually rethreading the
end of the new bobbin through the several guid
ing tension devices is eliminated and the replen
ishing operation is clearly facilitated.
In some cases it is desirable to operate the
latch and tripping member electrically and for
this purpose the modification shown in ~Fig. 9
is provided. The main parts of this apparatus
are as above described with the exception that
the bell crank 49-50 and its connecting rod 26
to the crank rod 25 of the-tripping member are
eliminated. As shown in Fig. 9 an electro-mag
netic device 6D is mounted on the bracket 24
and has its pole pieces 6l arranged in near but
normally spaced relation from an armature mem
ber 62 which is adjustably carried upon the arm
25’ of the trip member 20. The energizing cir
cuit of the electro-magnetic device 60 is from
an electrical source of supply, not shown, through
wires 63 connected to each side of the electro
magnetic device 60 and to a movable switch mem
ber 64 pivoted on an insulated pivot 65 upon the
nbracket 48. A fixed switch member 66 is mount
ed on said bracket 48 and has a return Wire 61
connected back to the electrical source of supply.
The movable switch member 64 has a weighted
portion 68 at the other side of its pivot to nor
mally hold it in open position with respect to the
ñxed Contact 66. The tail end portion 58 of the
30 movable finger 56 bears against one side of the
movable contact 64 to move it into circuit closing
position with respect to 66 whenever the ñnger
56 is moved into its dotted line position as shown
in Fig. 6. The fixed switch member 64 furnishes
35 a limiting stop for the inward swinging of the
finger 56. When the energizing circuit for the
electro-magnetic device 60 is closed as described
the armature 62 will be attracted to move the
latch I9 from under the tripping member I8 and,
40 cause the stopping of the winding spindle in the
manner previously described.
I claim:
1. In a winding machine in combination, a
Winding spindle, a supply bobbin and a support
45 therefor, an initial guide device for yarn located
vertically at a suflicient distance above said sup
ply bobbin to permit the‘yarn running òif said
supply bobbin being stopped Within said distance,
whereby the end of a new bobbin supply may be
tied
to the end of the exhausted bobbin supply
50
in the space between said bobbin support and said
initial yarn guide device, and detecting mecha
3
nism located above the bobbin on said support,
comprising a pair of fixed fingers spaced slightly
apart, and a movably mounted finger located be
tween said ñxed fingers, said fingers being adapt
ed to receive the running yarn Vin bearing relation
therebetween, viz, over the fixed ñngers and
under the movable finger, means causing the
movable linger to press against the yarn bridging
the fixed iingers and to move relatively to said
fixed fingers when the yarn is absent or suñî
ciently slack in tension, a stop motion mecha
nism comprising means to stop said Winding
spindle including a tripping member and a latch
to hold said tripping member against release, an
electromagnetic device for moving said latch in
release» of said tripping member, an electric cir
cuit and switch for said electric magnetic device,
and means operable by said movable finger to
actuate said switch.
'
2, In a winding machine in combination, a
winding spindle, a supply bobbin and a support
therefor, an initial guide device for yarn located
vertically at a suiiicient distance above said sup
ply bobbin to permit the yarn running off said
supply bobbin being stopped within said distance, 25
whereby the end of a new bobbin supply may be
tied to the end of the exhausted bobbin supply
in the space between said bobbin support and
said initial yarn guide device, and detecting
mechanism located above the bobbin on said sup
port and between said bobbin and the initial
guide device, said detecting mechanism compris
ing a grid guide of spaced fixed fingers and an
intermediate movable ñnger adapted to receive
the yarn in running relation therebetween, viz,
over the ñxed fingers and under the movable ñn
ger, said movable ñnger having limited move
ment inwardly between said ñxed fingers, said
fingers being so formed at their outer portions
that when said movable finger is in the inmost
position a flaring entrance is provided for thread
ing the yarn between said fingers in running
relation, means causing the movable finger to
press against the yarn bridging the fixed ñngers
and to move relatively to said fixed fingers when 45
the yarn is absent or sufficiently slack in tension,
a stop motion mechanism comprising means to
stop said winding spindle, and means operable
tol
by said movable ñnger to actuate said stop
motion mechanism.
EUGENE R. ALDERMAN.
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