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Патент USA US3078064

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Feb. 19, 1963
s. FURsT
3,078,054
YARN WINDING MACHINE
Filed Feb. 24, 1959
2 Sheets-Sheet 1
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Feb. 19, 1963
s. FURs-r
3,078,054
YARN WINDING MACHINE
Filed Feb. 24, 1959
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2 sheets-sheet 2
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FIG. 4
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United States Patent -Ofi-ice
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3,078,054
operating cycle of the common servicing unit so that the
unit will no longer stop at a winding station and will not
YARN ‘WENDENG MAQHHNE
attempt to eliminate a fault that cannot be satisfactorily
Stefan Fürst, Monchoix-Gladbach, Germany, assigner to
Walter Reiners, Männchen-Gladbach, Germany
Filed Feb. 24, 1959, Ser. No. 795,151
¿Claims priority, application Germany Feb. 24, 1958
6 Claims. (ill. 242-655)
or economically coped with by the unit.
According to a more speciiic feature of my invention,
I provide each of the winding stations in a machine of the
above-described type with a timing device which compares
the working time required for the actual winding opera
My invention relates to a yarn Winding machine which
tion and/ or the periods of rest and which, when a given
comprises a multiplicity of individually operating wind 10 datum value of one or the other measured period or the
ratio or difference of both periods exceeds a given value,
takes the Winding station out of the range of operating
performance of the common servicing unit and, if desired,
mon a single servicing unit that is movable along the en
also terminates the Winder drive of the Winding station
tire group of winding stations and is temporarily active
at any individual station Whose fault-sensing means has 15 thus añected.
According to a more specific feature of my invention
responded fo-r causing the servicing unit to remove the
the above-mentioned timing device is of the self-zeroing
fault in that station. Such multi-station Winding ma
type so that, after each timing operation is started and is
chines with a single mobile servicing unit are illustrated
ing units or “stations” of which each is provided with its
own fault-sensing control means and which have in com
terminated by a servicing operation of the servicing unit,
and described in the copending applications Serial No.
691,632, tiled October 22, 1957, Serial No. 796,049, filed 20 the timer will reset itself gradually back to zero. lf an
other servicing operation of the unit commences before
February 27, 1959, and Serial No. 728,139, ñled April 14,
the timer has returned to zero, the unexpired resetting
1958, all assigned to the assignee of the present invention.
period adds itself to the new timing period until, after a
in winding machines of the above-mentioned type,
given number or frequency of occurrence of such servicing
stoppages of the Winding operation in the individual sta
tions supervised by the servicing unit are automatically 25 operations, the timer reaches a point Where it acts to take
the winding station out of service.
eliminated by yarn-end seeking and kno-tting devices of
the servicing unit. When the fault-sensing means in
any one of the winding stations responds to trouble or
Particularly suitable as such a self-zeroing timer for
the purpose of the invention is a heated bimetal member
engages the yarn at a point where it travels from a supply
coil to a take-up spool. The guard performs a deliecting
flected, may place a movable control member of the wind
ing station to an inactive position in which the travelling
movement in response to absence of yarn at that location.
Since automatic servicing units of the above-mentioned
switched into operation. However, the bimetal member
who-se heating is effected, preferably electrically, during
stoppage, the servicing unit when next passing by that
station is arrested under control by the fault-sensing 30 the particular measuring period under observation. The
bimetal member acts directly or indirectly on a switch
means of the troubled station and the seeking and knotting
off member or the control switch for putting the rela
devices are actuated for returning the station to normal
tively movable, common servicing unit into operation.
operating condition. As a rule, the fault-sensing means
Por'example, the bimetal member when sutîiciently de
in each station consists of a yarn guard, or feeler which
type are costly, it is desirable to utilize them as econom
ically as possible and to assign to them as many indi
vidual winding stations as feasible. With respect to a large
number of normally occurring stoppages, such automatic
servicing units operate satisfactorily to return the winding
sta-tions back to normal operation. For example the stop
servicing unit, when passing by that station, is no longer
may also act directly or indirectly upon the yarn guard
of the Winding station. If desired, the bimetal member
may also act upon the control means of the individual
winding station itself. For example it may serve to arrest
the winding station aside from performing the above
mentioned function with respect to the servicing unit. It
pages due to exhaustion of the yarn supply coil in the in 45 is preferable to use the bimetal member as a latching
dividual winding stations take place in approximately
member which, when deflected into unlatching position,
tions. However, there always remain a residual number
of disturbances which the automatic servicing unit cannot
completely eliminate. When such a disturbance occurs,
drawings in which:
FIG. l sho-Ws schematically an individual winding sta
tion and a servicing unit located opposite that Winding
releases a pre-tensioned spring or other poWer-storer to
regular intervals of time. Furthermore the average num
perform the control operation proper.
ber of yarn breakages which occur in a given length of
The above-mentioned and other objects, advantages and
yarn can be determined statistically, and then can be satis
factorily eliminated by assigning one or more such auto 50 features of the invention will be apparent from the em
bodiment described hereinafter with reference to the
matic servicing units to service a group of winding sta
the servicing unit when travelling by the winding station,
or vice versa, becomes permanently occupied for an un
desirably long period of time Without being capable of
eliminating the cause of the winding stoppage at that par
ticular station. During such period the servicing unit is
station, both in normal operating condition; and
FIG. 2 illustrates the same winding station with a de
flected bimetal member which prevents that winding sta
tion from being serviced by the servicing unit.
PIG. 3 is a schematic and simplified front view, from
not available to the other winding stations of the machine. 60 the servicing side, of a multi-station Winding machine.
The result from economy viewpoints is that the servicing
unit can attend practically to only a smaller number of
winding stations and hence is not utilized to full advan
tage.
FÍG. 4 is a cross section through one of the winding
stations according to FIG. 3, with a servicing tender being
located at that station, the enclosure of the machine being
shown cut-off to reveal the interior.
The machine frame structure 1 of the illustrated Wind
ît is an object of my invention to increase the eiiiciency 85
ing machine carries a number of individual winding sta
of the servicing unit and to make a common servicing
tions designated generally as 1h13 (FIG. 3). One such
unit economically applicable for a greater number of in
station is visible in the view of FIG. 1. Each Winding
dividual winding stations than has heretofore been prac
station has a frame 3 pivoted at 3a to an arm 1 of the
tical.
According to my invention, I provide the individual 70 machine structure. A take-up spool 2 is journalled on the ,
frame 3 and rests under its own weight and the weight
Winding station of a multi-station machine with automatic
of frame 3 upon the periphery of a yarn guiding drinn a
means that eliminate a particular winding station from the
3,078,054
3
4
mounted on a shaft 4a which is journalled in the machine
5, under the force of spring 7, turns clockwise into the
structure 1 and which, in a straight-line Atype m‘ùltils'tation
machine, is common to a number of winding stations.
When the shaft 4a is driven, all winding drums mounted
position shown in FÍG; 2. During such motion of lever 5,
the arm 5’ entrains the arm 11 of yarn guard 12 and
moves the yarn guard counterclockwise away from the
thereon rotate clockwise (with respect to the view of
path of the yarn F so that thereafter the yarn guard 12
FIG. l) and entrain the take-up spools 2. Eachtake-upV
remains inactive, i.e. incapable of moving into position 12'.
spool then operates `at substantially constant peripheral
speed regardless of the diameter of the package of yarn
When the servicing unit 16, during its regular travel
along the multiplicity of winding stations, passes by the
wound upon that spool, until the package is completed.
During the winding operation the yarn F ‘passes through
10 abuts against the arm 14 and is turned from its normal
one station illustrated in FIG. l, the control member 15
a groove in the periphery of guiding drum 4 onto the
vertical position. This movement of member 15 has the
spool 2. The groove forms a’closed loop` around the.
eriphery of the drum 4 andY extends axially of the drums>
so that the yarn F, during winding operation, is re
ciprocated axially along the take-up spool 2 in order t0 15
effect of arresting the servicing unit 16 and of causing its
servicing devices to locate and seize the 'broken yarn ends
and to` thereafter >tie the yarn ends together by means of
produce a cross~wound yarn package. The yarn F is taken
from a supply coil 21 such as a spinning cop which iS
stationarily mounted. The yarn passes from supply‘coil
21 through a yarn tensioner 22 which is mounted on the
frame structure of the winding station. The frame struc 20
ture 1 further carries a pivot shaft 6 on which a control
or lockout lever 5 is mounted. One end of lever 5 forms
a stop 8. The lever 5 is subjected to the biasing force
of a tension spring 7 tending to move the lever clockwise.
a conventional knotter 141 (FIG. 4). As soon as the
y'arn ends are tied Aand tension again` exists in yarn F,
yarn guard 12 is forced back by the yarn F from position
12’ into the full-line position `shown in FIG. l, and the
winding operation of the station then continues. Simul
taneously, arm 14 swings out of the path of member 15,
which springs back to‘its vertical position to disengage
the latch 1,31 from boss 151; the chain 108, kept under
tension by the slip clutch 155, further described below,
entrains pin 154 of the servicing unit 16, and the servicing
The stop 8 is Vnormally engaged by the end ofa bimetal 25 unit travels to the next winding station.
strip 9 mounted on frame structure 1 and provided with
an electric heater winding 10. The heater winding 10
‘ In the machine illustrated in FIGS. 3 and 4, two lateral
standards 101 and 102 of the machine frame or carrier
is connected into an electric circuit 19 to` a suitable cur
structure are connected with each other by a tubular
horizontal carrier 1&4. Mounted above the carrier 104
rent source S, such as a utility line and is controlled by
a pair of contacts 17, 18 in the circuit which are normally 30 are a number of individual coil winding stations generally
designated as 103 along which a servicing tender 16 may
open. The lever 5 has an arm 5' located opposite an
travel. The` tender 16 carries the servicing devices re
arm 11 of a yarn guard, 12_which is pivotally movable
quired for eliminating the faults and stoppages of the
about a shaft 13. `The_yarn guard 12 is essentially a
coil,winding operation in the respective winding stations.
mechanical feeler or sensing means which engages the
yarn F as long as it is kept in taut condition between the 35 A motor 106 drives, by means of transmission 107, two
tensioner 22 and the yarn guiding drum 4. When. the
endless chains 168 and 109 (FIG. 4). The chain 168
supply coil 21 is exhausted or the yarn breaks, the guard -
serves to entrain the tender 16 along the machine. The
chain 109 serves for driving the servicing devices of the
tender 16. Conventional reversing or limit switches can
12 deliects into the dot-and-dash position 12’ shown i11>
PIG. 1.
The control means of the winding station may be such 40 beused to reverse the motor ‘at the travel limits of the p
that any such deflection of the yarn guard 12 in response
tender;
to absence of yarn will cause the frame 3 to be liftedA
The lateral standards 1M and 102 of the machine
away from the yarn guiding drum so thatthe winding op
frame structure, are connected with each other not only by
eration stops. > These control means are known per se
the tubular carrier 194 but also by a bottom rail 120, a
and are not illustrated herein, since they are conventional 45 horizont-al carrier 121 for the tensioners 22 and an‘uppet‘
ly used in winding machines of this type and form no
tubular rail,12„2 which carries the individual stations 103.
part of the present invention proper.
Mounted on the upper rail 122 is an arm 1 extending in a
-
When feeler `12 moves into position 12', contact 17
engages contact 18, closing circuit. 19„and- energizing
heater 10, which slowly heats up bimetal member 9 whose 50
vertical plane. A supporting member 259` (FIGS. 3, 4)
serves for bracing the tubular carrier 104.
t A
Firmly connected with the yarn guard 12 is an arm
In‘FlG. 4, the supply coil 21 is shown by dot-and-dash
lines in the position occupied when the coil is being un
wound. The supply coil 21 is carried by a pivotally
14. When the yarn guard 12 deflectsto the dot-and-dash
position 12' shown in FIG. l, due to occurrence `of yarn
mounted thorn 167 which can be turned about its pivot
so as'to be located in the end portion of a trough 115.
function will be described presently.
»
breakage or depletion of the supply coil `21, the arm 14 55 In this position of thorn 167, a supply coil 21 arriving
enters intolthe travel path of aswitch control member
from above in the trough 115 is automatically speared
15 which is rotatably mounted on the common servicing
up on the thorn. Thereafter, a spring (not shown) auto4
unit 16 of the machine. Member 415 is spring-biased so
matically returns the thorn 167 into the unwinding ‘posi-Í
that it normally remains in vertical position to closelcon
tion. Located between the yarn tensioner 22 and the
tacts (not shown), to actuate drive means 106 to'cauSe 60 yarnrguiding drum 4 is the yarn guard 12 which con
unit 16 to travel » along the various winding stations.
tinuouslytests the operation fortpresence of the yarn F
When arm 14 enters into the travel path, arm 15 deñects,
and whicrhkturns clockwise to position 12’ in the event
causing the latch 131 to engage a boss 151 on the‘carrier
of yarn failure. A double-armed `lever 11, 14 is fastened
104, as more fully described hereinafter, and unit 16 stops.
to the yarn guard 12 in the vicinity of the pivot axis 13«
At the same time that arm 14 moves downward, the 65 The fault-responsive pivoting motion of the guard 12 in
detlected yarn guard 12 closes the contacts 17, 18 and`
the clockwise direction to position 12' causes the winding
energizes the heater winding 1l).
The combination comprising elements 9-10-7 and cir
cuit 19 thus forms a self-zeroing plus-minus energy- -
storing device which accumulates heat energy while con-_»
tacts 18 are closed, to deflect member 9 and coolsfor »A
decay of the stored energy while contacts 18 are open.VY
The bimetal member 9 deilects toward the left as shown
in FIG. 2 only when it is sufìîciently heated by heater
1B, and such deflection releases the stop 8 sci__thatthe` lever
station to be stopped in the known manner by lifting
the take-up spool 2 off the guiding drum 4.` Since the
mechanism required for such stopping operation is known
as such it is not illustrated herein in order not to obscure
the components essential to the invention proper. Lever
arm"1'4'in'V relation with arm 15 forms a switching seg
ment,v and” arm 11 serves also for resetting the yarn
guard'12.
-
-
lfIhe tenderv'tlnit 16 has lrunning wheels 124 which
3,078,054
5
6
roll along the tubular carrier 104. Rollers 124s jour~
155 is interposed between the driving shaft of gear 16‘7
and the driving sprocket of the endless chain 108, so that
nalled on the tender 15 serve to guide the tender along
the bottom rail 12%. At least o-ne of the two wheels 124
can be pulled od its shaft; and the tender 16 can then be
lifted out of the assembly. For this purpose, the tender
is turned about the axis of the bottom rail 120 and can
the chain 11i@ is temporarily arrested as long as the tenderV
is stoppe-d. In contrast thereto, the endless chain 109 rO
tates continuously about its sprockets and, as soon as the
tender 16 is stopped, actuates a step-down transmission ’
157 whose rotation is transmitted by a chain 158 and a
spur gear 159 through a slip clutch 160 onto a shaft 161
which carries a worm 162 driving the cam disc 132.
then be lifted past the upper rail 122. The insertion of
the tender is eii’ected in the opposite manner. For facili
rating such removal or insertion, the last location 1ll-3a
When starting the operation of the multi-station wind
(FIG. 3) on the multi-station machine may be left vacant 10
or the indiivdual winding station located at this point can
ing machine, the tender 16 iirst travels from station to
station and, by means of its switching arm 1S, feels
be made removable.
whether the yarn guard 12 in each station has turned into
Mounted on tender 16, at the servicing side thereof,
the fault-responsive position 12’ shown by full lines in
is a switch arm 15 (FÍGS. 3, 4) which is kept in approxi
mately vertical position by a pulling spring 12ga. Switch 15 FIG. 4, thus signalling that a knotting or coil-exchanging
operation is needed. The fault-responsive movement of
arm 15 is fastened to a shaft 127 which carries a crank
yarn guard 12 has the effect of turning its switch arm 14
into the travelling range of the switch arm 15 on the
tender so that when the tender passes by, either from the
of stop pawl 13d is also imparted to a latch 13'.. When 20 left or the right, the arm 1K1 turns the switch arm 15 in
one or the other direction. Such turning movement of
latch 131 is thus moved downwardly, it can enter into
arm 15 is transmitted through shaft 127 to crank 123
the center bore of a boss 151 on carrier 104, thus ar
which, irrespective of the direction of rotation, turns the
resting the tender and latching it to the tubular carrier
pawl 13@ and the latch 131 downward. Now latch 1331
îiìfi. The pawl 13@ and the latch 131 cooperate with a
cam disc 132 which has a cam notch 13d into which the 25 enters into the center bore of boss 151 and arrests the
tender 16 in front of the winding station, while the opera
pawl 13@ can enter, whereby the pawl arrests the cam
tion of that station is also stopped. Now the step-down
disc. Cam disc 132 has a cam groove 133 and a dog 135.
transmission 157 is placed in rotation by the continuously
In a given rotational position of groove 133, a control
rotating chain 159. rïransrnission 157 then acts through
lever 136 carrying a spur-gear segment 137 can enter
into the groove. Segment 137 meshes with a pinion 15S 30 chain 15d, spur gear 159, slip clutch 151i, shaft 151, and
worm 162 to drive the cam disc 132 in the direction
which is connected with a suction tube 139 for conveying
identiiied in FlG. 4 by an arrow. The control lever 136
the yarn end to be found and seized.
can now drop into the cam groove 133 and entraine the
Linked to the control lever 156 is a driving tappet 14d
128. Rotating motion of switch arm 15 thus causes the
crank 123 to entrain a spring 129i: to move a stop pawl
130 in the upward or downward direction. The motion
(FIG. 4) for a knotting device 1411. The dog 135 of cam
spur gear segment 137 counter-clockwise, thus rotating the
disc 132 cooperates with a projection 143 of a control
pinion 131% clockwise. The suction tube 139 fastened to
pinion 133 now turns from its lowermost (not illustrated)
position upwardly. Since at this time the suction channel
1 1S of conduit 152 is in communication with the opening
151') of the tubular carrier 10d at the location of the wind
40 ing station being served by the tender, the vacuum is
lever 1412 so that, during passage of dog 135, the lever
M2 is shifted counterclockwise about its pivot and then
pushes a return tappet 1%5, in opposition to springs 12M
and 129:1, against the return lever arm‘ 11. When dog
135 passes beyond the projection 143, the control lever
142 returns to its illustrated position,
Schematically shown at 146 (FIG. 4) is a conveying
arm which is pivoted on the tender 16. It is understood
that arm 146 has the customary thread-engaging means
such as a suction nozzle, and is connected to a source of
effective to produce a current of suction air at the nozzle
end of suction tube 139. This air current sucks the free
yarn end of the take-up spool 2 into the tube 139. For
this purpose, the take-up spool 2 is preferably turned
slowly in the reverse direction by known means (not illus~
suction 11i?, as is more fully described in the above-men 45
trated).
tioned copending application Serial No. 728,139. At the
During further rotation of carri disc 132, the control
lever 136 again turns back in the clockwise direction, and
the suction tube 13? of the yarn-end länder device again
turns downwardly, thus entraining the seized yarn end
from the take-up spool 2 into the immediate vicinity of
the knotter 141. At the same time the conveying arm
start of the yarn-end iinding operation, the arm 1456 turns
from the uppermost position, shown in dot-and-dash line
downward toward the yarn tensioner 22 and into the
solid-line position 1de’ in order to thereafter convey the
yarn end, then located in the tensioner 22, upwardly to
the knotter 141. Such knotting devices are known as
such, and for that reason are not shown and described
herein in further detail.
The tender 16 has a suction conduit 152 whose lower
end sequentially communicates with lateral openings 154i
of the tubular carrier 1114 as the tender 16 travels along
the carrier.
Each opening 151i (PEG. 4) is normally
146 has passed from its uppermost (dot-and-dash) posi
tion to the lowerrnost (full-line) position 146 where it
seizes the yarn end coming from the supply coil 21.
During the next following return travel in the upward
direction of arm 1de, the latter yarn end is also placed
against the knetter 141 which now ties both yarn ends
together.
ln the meantime, the cam disc 132 has turned to the
covered by a lid 1419’. As the tender approaches, the lid
is turned away from the opening 15G so that then the 60 position where its dog 135 presses against the projection
143 of control lever 142 and thus pushes the return tappet
suction conduit 1517s becomes connected with the suction
145 toward the left for a short interval of time. The
system o1 which the carrier 1114 forms a part. Converse
tappet movement acts upon the lever arm 11 of the yarn
ly, when the tender leaves a winding station, the lid 149
guard 12 and resets the guard so that the winding station
is released and then automatically closes the suction inlet
is ready for further operation. When the knotting opera
opening 15%. The suction conduit 152 provides vacuum
tion is satisfactorily performed, the winding station now
pressure for the suction tube 139 of the yarn-end finding
The endless chain 1% has one of its chain members
continues the winding-up of the take-up spool 2. If the
knotting operation has failed, then the yarn guard 12 does
the tender 16, whenever needed, is stopped by the latch
151, and the chain 163, kept under tension by the slip
device.
not remain in its lowermost position and thus initiates a
provided with an entrainer pin 15d (FIG. 4) which pro
jects into a vertically elongated slot 156 in the tender 70 repetition of the above-described servicing operation.
immediately after the dog 135 has passed beyond pro
structure and thereby entrains the tender to travel back
jection 143, the stop pawl 13d enters into the notch 134
and forth along the tubular carrier 111i. However, since
of cam 132. This releases the latch 131 from the boss
131 in front of an individual winding station, a slip clutch 75 clutch 155, entrains the tender 16 by means of the en
3,.
7
will be obvious that one skilled in the art, upon the read
ing of this disclosure, can readily adapt such invention to
the arrangement of winding stations other than in` a
trainer pin 154, The tender 16 then travels vto ,theV next
following winding station where, if needed, the servicing
operation is initiated and performed in the same manner
straight line,
as described above.
The self-zeroing timing device will now be described
in detail. Due to the energization of heater winding lit),
Furthermore, it will be obvious to those skilled in the
art, upon studyingthis disclosure, that devices according
the bimetal member 9 if heated for a sui‘rlcient length of
time, gradually deiiects to the position shown in FIG. 2,
to my invention can be modified in various respects and
hencemay be- embodied in devices other than particularly
illustrated and described herein, without departing from`
thus releasing the stop 3, so that the control lever 5 is
turned clockwise about pivot 6 by spring 7. The heating
element 10 for heating the bimetal strip 9 to a tempera
the essential features of my invention and within the scope`
of the claims annexed hereto.
I claim:
ture Where it can deflect sufficiently to release arm 5 and `
5' is so dimensioned that such heating to that temperature
requires a certain length of time before the strip 9 can
release the stop 8. This period of time is of a predeter
'
mined length so that the travelling servicing unit 16 can
at least once, preferably several times, pass by the Winding
station and can attempt to eliminate the disturbance i.e.,4v
thread break, machinery malfunction, etc. If the first
try of the servicing unit 16 has the result of eliminating 20.
the disturbance or stoppage of „the winding operation, the
bimetal strip will again cool down andthe normal wind
ing operation continues. However, if shortly after the`
ñrst try of the servicing unit the disturbancel continues or
l. A multi-station yarn winding machine comprising a
group of individual winding` stations and a servicing unit
common _to said stations and engageable with said respec
tive stations for eliminating stoppage therein, one of said
group and unit being moveable relative to the other for
placing said unit sequentially into servicing relation to
said respectivestations, each of said stations having yarn
engaging sensing means responsive to yarn absence to
move from a normal position into a fault-responsive posi
tion, a movable control member connected with said sens
ing ,means and deñectable to an active position under `con
trol by said sensing means due to response of the latter,
the same or a similar disturbance occurs, the unit will 25 said control member being engageable by said servicing
unit `to cause servicing operation of said unit only when
perform a second and in some cases a third try so that
the bimetal strip is again heated. Since the bimetal strip
said control member is in` said active position, a self
requires a suñicient amount of time for self-zeroing, i.e.
cooling to room temperature before it d_eñects back to the
zeroingtiming device including plus-minus energy storing`
position of` PIG. l, any disturbances following each other
said energy storing meansbeing operatively connected`
in short intervals of time will commence while the bi
with said sensing means and controlled thereby to ac
cumulate energy in a plus sense only while said sensing`
means is in lsaid vfault-responsive position and` to cause
metal strip is still retaining some amount of heat. After
two or three repeated heatings of the strip, it will pass into
and remain in the position shown in FiG. 2, and con
sequently, arm 5’ will restrain arm4 11 toward the left,
thus taking the troublesome‘winding station out of the
operating range of the servicing unit 16 _by arresting the;
arm 14 in the position shown in FIG. 2 where it cannot
engage the control member 15 of unit 16.
If desired, the deflection of control lever 5 may also be
used for operating a signalZS, for example by closing a
switch contact 24 by means of extension arm 25„ñxedly
means having a given rate of `decay of the stored energy,`
decay of` the stored energyin a minus sense` while the
i sensingmeans is in said normalposition, said` given rate.
of decayrbeing set to lprovide a self-zeroing interval for`
said self-zeroing device longer than a normal servicing.,
period` of said unit,` a movable lockout member disposed
in a givenlockout position, when the total remainder of
stored energy in said storing means reaches a predeter
mined value, said lockoutmember insaidlockout position.
attached to swingable arm 5, as shown in FIG. 2. TheA
being in controlling _connection with said control member
for restraining the `latter in an inactive position out of the`
signal calls attention of the attendant personnel to theA
engaging range of said unit, whereby servicing operation`
fact that an unusualdisturbance has occurred at the wind 45 of said servicingunit is prevented on a troublesome wind
ing station and requires the particular attention orÁ an in
ing station.
termediate action.
2. A multi-station yarn winding machine comprising a
By the above-described means, the efficient operation
group of individual winding stations and a servicing unit
of the winding station and servicing unit is continuously
common to said stations and cngageable with said respecf
supervised in a simple manner. Aside from disturbances 50 tive stations for eliminating stoppage therein, one of said
that may result from malfunctioning of the machinery, an.
unusual number of stoppages may also occur due to the
use of faulty or weak yarn material which breaks fre
group and unit being movable relative to the other for
placing said unit sequentially into servicing relation to
saidrespectivc stations, each of said stations having yarn
quently.` The device according to the invention is also
engaging sensing means responsive to yarn absence to
of advantage in the event of such unduly frequent inter 55 move from a normal position into a fault-responsive posi-V
ruptions and permits a simple supervision with respect to
tion, a movable control member connected with said sens
the quality of the yarn material being wound. Repeated
and unduly frequent interruptions of operation are in
ing means and detlectable to an active position under con
be, when the signal is energized by the control device,
said winding stations having a self-zeroing timing device
trol bysaid sensing means due to response of the latter,
directly a measure of that yarn quality. Whenever the
said control member being engageable by said servicing
winding station is removed from the supervisory and cor 60 unit to cause servicing operation of said unit only when
rective activity of the servicing unit, and as the case may
said control member is in said active position, each of`
this calls the attention of the attendant, and he can in
including plus-minus energy storing means having a given
each case rapidly determine thecause of the fault and
rate ofdecay of the stored energy, said energy storing
can thus take care of placing the winding station back to 65 meansbeing provided with a bimetallic member deiiect
normal operation and to normal operating speed.
able from a zero position to a deflected position and heat
While the present speciñcation mentions generically
ing means for detiecting same operatively connected with
“multi-station winding machines” it will be understood
saidsensing4 means yand controlled thereby to heat said
that the machines embraced by this term are not neces
sarily limited to a straight-line arrangement of winding 70 bimetallic member only during a time when said` sensing
means is in said fault-responsive position, the cooling
stations serviced by one or more servicing units, but this
period interval necessary for returning said bimetallic
term is also intended to embrace Winding machines in`
member from said deíiected position to said zero position
which the various winding stations are peripherally ar
being an interval longer than a normal servicing period
ranged, such as those described in my copending appli
cation Serial No. 691,632, tiled October 22, 1957, and it 75 of said unit, a lockout lever blockingly engageable by said
n
3,678,054'
g
.
bimetallic member in said zero position of the latter and
movable into controlling connection with said control
.
l@
sence, said control member in said active position being
engageable by said switch means of said servicing unit
member, movement of said lockout lever to said con
to dellect said switch means to its dellected position to
trolling connection causing said control member to move
to an inactive position out of the engaging range of said
unit upon occurrence of a given remainder of heating
time accumulated in said energy storing means suflicient
to hold said bimetallic member in said deflected position,
thereby cause servicing operation of said unit only when
said control member is in said active position, each of
said winding stations having a self-zeroing timing device
including plus-minus energy storing means having a given
whereby servicing operation of said servicing unit is pre
rate of decay of the stored energy, said energy storing
means being provided with a latching member dellectable
vented on a troublesome winding station upon accumula l0 from a zero position to a dellected position and electrical
tion in said timing device in a plus sense of a given
means operable only when said sensing means is in said
excess of fault-response time over running time in a re
fault-responsive position for deilecting same gradually
spective station.
3. A multi-station yarn winding machine comprising a
group of individual winding stations and a servicing unit
common to said stations and engageable with said re
spective stations for eliminating stoppage therein, one of
said group and unit being movable relative to the other
for placing said unit sequentially into servicing relation to
said respective stations, said servicing unit having out
wardly projecting switch means and each of said stations
having yarn-engaging sensing means responsive to yarn
absence to move from a normal position into a fault
toward said deliected position and for causing dec-ay of
the stored energy While the sensing member is in said
normal position, lever means blockingly engageable by
said latching member in said zero position of the latter
and pivotally mounted on said machine and swingable
from a locked to an unlocked position and engageable in
its unlocked position with said sensing means to restrain
20 the latter in said normal position regardless of the exist
ence of a yarn-absence condition, biasing means for urg
ing said lever means toward said unlocked position, an
electrical circuit having contact means controlled by said
responsive position, a movable control member connected
sensing means in said fault-responsive position to energize
with said sensing means and deflectable to an active posi
tion under control by said sensing means due to response
said electrical means, said latching member in said zero
position restraining said lever means in said locked posi
tion, the time interval necessary for deñecting said latch
said switch means orr said servicing unit to cause servicing
ing member from said deflected position to said zero posi
operation of said unit only when said control member is
tion bein-g an interval longer than a normal servicing
in said active position, each of said winding stations hav 30 period of said unit, said lever means in said unlocked
infr a selÍ-zeroing timing device including plus-minus
position being engageable with said control member for
energy storing means having a given rate of decay of the
moving said control member to an inactive position out
stored energy, said energy storing means being provided
of the engaging range of said switching means of said
of the latter, said control member being engageable by
with a bimetallic member deiiectable from a zero posi
unit upon occurrence of a given amount of time accumu
tion to a deflected position and heating means for dellect
lated in said electrical timing means suilicient to hold
ing same operatively connected with said sensing means
said latching member in said deñected position and thus
and controlled thereby to heat said bimetallic member
to release said lever means into said unlocked postion,
only during a time when said sensing means is in said
whereby servicing operation of said servicing unit is pre
fault-responsive position and to cause cooling of the bi
vented on a troublesome winding station upon accumu
metallic member for decay of t-he stored energy while 40 lation in said timing device in a plus sense of a given ex
the sensing means is in said normal position, the cooling
cess of fault-response time over running time in a respec
period interval necessary for returning said bimetallic
tive station.
member from said deflected position to said zero position
5. A multi-station yarn winding machine comprising a
being an interval longer than a normal servicing period
group of individual winding stations and a servicing unit
of said unit, a lockout lever blockingly engageable by said 45 common to said stations and engageable with said respec
bimetaliic member in said zero position of the latter and
tive stations for eliminating stoppage therein, drive means
movable into controlling connection with said control
operable to move said unit relative to said stations and
member, movement of said lockout lever to said control
for placing said unit sequentially into servicing relation
ling connection causing said control member to move to
to said respective stations, said servicing unit having ont
an inactive postion out of the engaging range of said unit 50 wardly proiecting switch means to arrest said unit and to
upon occurrence of a ‘given remainder of heating energy
initiate servicing operations when said switch means is in
accumulated in said energy storing means sufñcient to
a deflected position, each of said stations having yarn
heid said bimetallic member in said dellected position
engaging sensing means pivotally mounted on said ma
whereby servicing operation of said servicing unit is pre
chine frame and operable to move from a normal posi
vented on a troublesome winding station upon accumula
tion into a fault-responsive position in response to yarn
tion in said timing device in a plus sense or” a given excess
absence, a movable control member rigidly connected
of fault-response time over running time in a respective
with said sensing means and dellectible therewith to an
station.
active position under control by said sensing means due
4. A multi-station yarn winding machine comprising a
to said response of the latter to yarn absence, said control
group of individual winding stations and a servicing unit 60 member in said active position being engageable by said
common to said stations and engageable with said respec
switch means of said servicing unit to detlect said switch
tive stations for eliminating stoppage therein, drive means
means to its deflected position to thereby cause servicing
operable to move said unit relative to said stations and
operation of said unit only when said control member is
for placing said unit sequentially into servicing relation
in said active position, each of said winding stations hav
to said respective stations, said servicing unit having out 65 ing a self-zeroing timing device including plus-minus
wardly projecting switch means operatively connected to
energy storing means having a -given rate of decay of the
arrest said unit and to initiate servicing operations when
stored energy, said energy storing means being provided
said switch means is in a dellected position, each of said
stations having yarn-engaging sensing means pivotally
with a bimetallic latching member deflectable from a
zero position to a deflected position and heating means
mounted on said machine frame and operable to move 70 for detlecting same, lever means blockingly engageable
from a normal position into a fault-responsive position
in response to yarn absence, a movable control member
rigidly connected with said sensing means and del'lectable
therewith to an active position under control by said sens
by said bimetallic member in said zero position of the
latter, said lever means being pivotally mounted on said
machine and swingable from a locked to an unlocked
position under control by said latching member and en
ing means due to said response of the latter to yarn ab 75 gageable in said unlocked position with said sensing means
12
11
energy, saidv energy storing means being provided with a
to restrain the latter in- said normal position regardlessk
bimetallic latching member detiectable from a zero posi~
tion to a deflected position and heating means for deilect
of the existence of¿ a yarn~absence condition, biasing
means for urging said lever means toward said unlocked
ing same, lever means blockingly engageable by said bi
metallic member in said zero position of the latter, said
position, an electrical circuit having contact means con
trolled by said sensing means in said fault-responsive posi
tion to energize said heating means only when said sensing
means is in said fault-responsive position and to cause
> lever means being pivotal'ly mounted on said machine and
cooling of the bimetallic member for decay of the stored>
energy while the sensing means is in said normal position,
said latching member in said zero position restraining said
lever means in said locked position, the cooling period
interval necessary for returning said bimetallic latching
member from said detlected position to said zero position
being an interval longer than a normal servicing period
of said unit, said lever means in` saidl unlocked position 15
being engageable with said controlmember for moving
said control member to an inactive position out of the
engaging range of said switching means of said unit upon
swingable from a locked to an unlocked position under
control by said latching member and engageable in said
unlocked position with said sensing means to restrain the
latter in said normal position regardless of the existence
of a yarn-absence condition, biasing means for urging
said lever means toward said unlockd position, an elec
trical circuit having contact means controlled by said
sensing means in said fault-responsive position to ener
gize said heating means only when said sensing means is
in said fault-responsive position and to cause cooling of
the bimetallic member for decay of the stored energy
while the sensing means is in said normal position, said
latching member in said zero position restraining said
occurrence of a given remainder of heating .energy ac
cumulated in said energy storing means suflicient to hold 20 lever means in said locked position, the cooling period
said bimetallic latching member in said deflected position ' interval necessary for returning said bimetallic latching
member from said deñected position to said zero position
and thus to release said lever means into said unlocked`
position, whereby` operation of `said servicing unit is pre
vented upon accumulation in said timing device in a plus
sense of a given excess of fault-response time over `run~
ning time in a respective station. t
being an interval longer than a normal servicing period
of said unit, said> lever means; in said unlocked position
i being engageable with said control member for moving
said control member to an inactive position out of the
engaging range of said switching means of said unit upon
6. A multi-station yarn winding machine comprising a
occurrence of a given remainder of heating energy accu
group of individual winding stations and a servicing unit
mulated in said energy storing `means sufficient to hold
common to said stations and engageable with said respec-k
tive stations `for eliminating stoppage therein,` drive means 30, said bimetallic latching member- in said dellectedposition
and thus to release said lever means into said unlocked
operable to move said unit relative to said stations and
position, andY signalling means operably connected for
actuation by said lever means in said unlocked position,
whereby-servicing` operation of said servicing unit on a
wardly projecting switch means to arrest said unit and to
initiate servicing operations when said switch means is in 35, troublesome winding station is prevented upon accumu~
lation in‘ said timingV device in a plusA sense of a given
a detiected position, each` of saidstations having sensing
excess of fault-response time over running time in a re
means pivotally mounted on said machine frame and
spective station and attention of operating personnel is
operabletto move from a normal position .into a fault-‘
for‘placing said unit sequentially into servicing relation
to said respective stations, said servicing unit having out
responsive position in response to yarn absence, a mov
able control member deflectable due to saidresponse of.
said sensing means to yarn absence, said control member
in said active position being engageable by said switch
meansrof said servicing unit to deflect said switch means
to its deliected position to thereby cause servicing opera
tion of said unit only when said `control member is in 45
saidactive position, each of said winding stations having
a self-zeroing timing device _including plus-minus energy
storing means having a given rate of `decay of the stored
directed to the troublesome-Winding station.
References Cited in the tile of this patent
UNITED STATES PATENTS
2,736,505
2,752,103
Furst _______________ „_ Feb. 28, 1956
Furst _______________ __ June 26, 1956
2,752,104
Furst „a ____________ __ June 26, 1956
2,874,344~
Slocum ______________ __ Feb. 17, 195,9
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