U.S. patent application number 09/953182 was filed with the patent office on 2002-04-04 for take-up winder for filament yarn.
This patent application is currently assigned to Murata Kikai Kabushiki Kaisha. Invention is credited to Hashimoto, Kinzo.
Application Number | 20020038836 09/953182 |
Document ID | / |
Family ID | 18784718 |
Filed Date | 2002-04-04 |
United States Patent
Application |
20020038836 |
Kind Code |
A1 |
Hashimoto, Kinzo |
April 4, 2002 |
Take-up winder for filament yarn
Abstract
It is an object of the present invention to provide a take-up
winder for filament yarn capable of relating the device for bobbin
holder such as a compressed air supplying device or a rotating
speed measuring device, to the change in the position of the bobbin
holder. The present invention comprises a revolving device 13 for
changing the position of a plurality of bobbin holders 5,5 by
rotating, a swinging member 21 capable of swinging to both
directions around the rotating center line M of the revolving
device 13, an interlocking means 22 for interlocking the revolving
device 13 and the swinging member 21 capable of being connected and
disconnected, and a device for bobbin holder 23 provided in the
swinging member 21. The device for bobbin holder 23 is a compressed
air supplying device 18 for supplying compressed air for the bobbin
releasing operation to the bobbin holder 5 for an wound-up bobbin
B-2, or a sensor 35 of a rotating speed measuring device 19 for
measuring the rotating speed of the bobbin holder 5 for a winding
bobbin B-1.
Inventors: |
Hashimoto, Kinzo;
(Kyoto-shi, JP) |
Correspondence
Address: |
ARMSTRONG,WESTERMAN & HATTORI, LLP
1725 K STREET, NW.
SUITE 1000
WASHINGTON
DC
20006
US
|
Assignee: |
Murata Kikai Kabushiki
Kaisha
Kyoto-shi
JP
|
Family ID: |
18784718 |
Appl. No.: |
09/953182 |
Filed: |
September 17, 2001 |
Current U.S.
Class: |
242/473.9 ;
242/474.6 |
Current CPC
Class: |
B65H 2701/31 20130101;
B65H 67/048 20130101 |
Class at
Publication: |
242/473.9 ;
242/474.6 |
International
Class: |
B65H 067/04; B65H
054/22 |
Foreign Application Data
Date |
Code |
Application Number |
Oct 3, 2000 |
JP |
2000-303532 |
Claims
1. A take-up winder for filament yarn including a revolving device
for changing the positions of a plurality of bobbin holders by
rotating, comprising: a swinging member which has the rotating
center located on the same core with the rotating center of the
revolving device, capable of swinging in both directions with the
rotating center as the center; an interlocking means for
interlocking the revolving device and the swinging member, capable
of being connected and disconnected; and a device for bobbin holder
provided in the swinging member.
2. A take-up winder for filament yarn according to claim 1 wherein
the device for bobbin holder is a compressed air supplying device
for supplying compressed air for the bobbin releasing operation to
the bobbin holder.
3. A take-up winder for filament yarn according to claim 1 wherein
the device for bobbin holder is a sensor of a rotating speed
measuring device for measuring the rotating speed of the bobbin
holder.
4. A take-up winder for filament yarn including a revolving member
supported rotatable by the machine body and two bobbin holders
supported rotatable by the revolving member; wherein the revolving
member rotates gradually accompanying the enlarging of the winding
diameter of the bobbin set on one of the bobbin holders, and the
one of the bobbin holders transfers gradually from the winding
starting position to the winding terminating position, and at the
same time, the other bobbin holder transfers from the bobbin
exchanging starting practicable position to the bobbin exchanging
terminating position; comprising: a swinging member which has the
rotating center located on the same core with the rotating center
of the revolving member, capable of swinging in both directions
with the rotating center as the center; an interlocking means for
interlocking the revolving member and the swinging member, capable
of being connected and disconnected; and a compressed air supplying
device provided in the swinging member, for supplying compressed
air for the bobbin releasing operation to the other bobbin holder.
Description
FIELD OF THE INVENTION
[0001] The present invention relates to a take-up winder for
winding the filament yarn around the bobbin set on a bobbin
holder.
BACKGROUND OF THE INVENTION
[0002] Conventionally, as shown in FIG. 4 which is the right side
view of the take-up winder, the take-up winder for filament yarn 1
comprises a turn table 4 supported rotatable by a machine body 2 as
to form a revolving device 3, two bobbin holders 5, 5 projecting in
cantilever toward the front hand side by being supported by the
turn table 4, a contact roller 6 wherein a winding bobbin B-1 is
contacted against thereon, a braking device 7 for stopping the
rotation of the bobbin holder 5 of which is carrying a wound-up
bobbin B-2, a compressed air supplying device 8 for supplying the
compressed air for releasing the bobbin to the bobbin holder 5 of
which is carrying the wound-up bobbin B-2, and a rotating speed
measuring device 9 for measuring the rotating speed of the bobbin
holder 5 of which is carrying the winding bobbin B-1.
[0003] Moreover, to attempt the miniaturization of the mechanism
for supporting the contact roller 6, there is a take-up winder for
filament yarn 1 wherein the elevating and descending amount of the
contact roller 6 is decreased, or the contact roller 6 is made not
to elevate and descend.
[0004] Furthermore, in this take-up winder for filament yarn, the
turn table 4 is rotated gradually accompanying the increase in the
winding diameter of the winding bobbin B-1, and the position of the
winding bobbin B-1 is arranged to be changed during the winding
process.
[0005] In the bobbin exchanging work for exchanging the wound-up
bobbin B-2 with an empty bobbin, after the wound-up bobbin B-2 is
turned to the exchanging position, the rotation of the bobbin
holder 5 with the wound-up bobbin B-2 by inertia is stopped by the
braking device 7, the compressed air supplying device 8 supplies
the compressed air for releasing the bobbin to the stopped bobbin
holder 5, and the wound-up bobbin B-2 is made into a released
state. The stopping operation and the compressed air supplying
operation to the bobbin holder 5 are carried out with the rotation
of the turn table 4 stopped, since the principal parts of the
braking device 7 and the compressed air supplying device 8 are
provided fixed to the exchanging position. However, the winding by
the winding bobbin B-1 is continued while this operation is being
carried out. As a result, since it is required to resume as soon as
possible the rotation of the winding bobbin B-1 of which the
winding diameter is prone to be increasing, and to contact the
winding bobbin B-1 against the contact roller 6 at a designated
position under an appropriate pressure, both of these operations in
the bobbin exchanging work are required to be terminated within a
short period of time.
[0006] There is a limit for the bobbin exchanging work to carry out
the stopping operation and the compressed air supplying operation
to the bobbin holder 5 within a short period of time. Therefore,
there are cases in which the bobbin exchanging work takes a long
period of time and fails. In the case the bobbin exchanging work
does not complete within a prescribed period of time, an alarm is
generated, and the winding is required to be suspended. Especially
in the case the filament yarn is thick, since the increasing speed
of the winding diameter is fast, it is difficult to carry out the
bobbin exchanging work within a short period of time. Therefore,
conventionally, concerning the speeding up of the spinning speed,
there was a limit from the bobbin exchanging work side.
[0007] Moreover, the take-up winder for filament yarn is required
to measure the rotating speed of the bobbin holder 5 of the winding
bobbin B-1 side during the winding process. Therefore, in the
take-up winder for filament yarn, the sensor of the rotating speed
measuring device 9 (not shown in the drawings) is provided for each
bobbin holder 5, 5 in the turn table 4 side, the slip ring is
provided in the midst of the lead wire extending from the sensor,
and by securing the rotation of the turn table 4 by the slip ring,
a signal transmission to the measuring circuit from the sensor is
carried out. However, the slip ring is prone to generate noise,
thus the measuring level is not reliable.
[0008] Thus, it is an object of the present invention to provide a
take-up winder for filament yarn, in consideration to the problemms
described above, capable o interlocking the device for bobbin
holder such as the compressed air supplying device or the rotating
speed measuring device, and the position changing of the bobbin
holder.
SUMMARY OF THE INVENTION
[0009] The take-up winder for filament yarn including the revolving
device for changing the position of a plurality of bobbin holders
by revolving, is characterized in that the means adopted by the
present invention for relating the device for bobbin holder to the
position changing of the bobbin holder, comprises a swinging member
capable of swinging to both directions around the revolving center
line of the revolving device, an interlocking means for
interlocking the revolving device and the swinging member capable
of being disconnected and connected, and a device for the bobbin
holder provided in the swinging member. Further, to simplify the
structure by sharing with the braking device of the bobbin holder,
the interlocking means may comprise a brake wheel rotating with the
bobbin holder in a unity, a brake shoe provided in the swinging
member, and an operating member for advancing and receding the
brake shoe. The brake shoe is advanced and receded from the
receding position which does not interfere with the position
changing of the bobbin holder and the swinging of the swinging
member, to the advancing position contacting against the periphery
surface of the brake wheel. The contacting surface of the brake
shoe is formed like an arc so that to hold in the periphery surface
of the brake wheel. The revolving device and the swinging member
become into an interlocked state by the advancing of the brake
shoe, and into a non-interlocked state by the receding of the brake
shoe.
[0010] According to the present invention, by interlocking the
revolving device and the swinging member by the interlocking means,
the device for bobbin holder can be transferred in accordance with
the position changing of the bobbin holder, and the bobbin holder
in the position changing process and the device for bobbin holder
can be linked.
[0011] The means adopted by the present invention for relating the
compressed air supplying device for the bobbin releasing operation
to the position changing of the bobbin holder, is the take-up
winder for filament yarn wherein the device for bobbin holder is a
compressed air supplying device for supplying compressed air for
the bobbin releasing operation to the bobbin holder.
[0012] In the present invention, the releasing operation of the
bobbin holder can be carried out by the compressed air supplying
device and the exchanging of the wound-up bobbin and the empty
bobbin can be carried out at a random position, even in the midst
of the position changing process of the bobbin holder.
[0013] The means adopted by the present invention for relating the
sensor for measuring the rotating speed of the bobbin holder to the
position changing of the bobbin holder, is a take-up winder wherein
the device for the bobbin holder is a sensor of the rotating speed
measuring device for measuring the rotating speed of the bobbin
holder.
[0014] In the present invention, the sensor provided in the
swinging member and the measuring circuit or the like provided
fixed to the rotating speed measuring device can be connected
directly by the lead wire without intervening the slip ring. Even
when the bobbin holder is in the midst of position changing
process, the signal measured by the sensor can be transmitted to
the measuring circuit via the lead wire.
BRIEF DESCRIPTION OF THE DRAWINGS
[0015] FIG. 1 is a right side view of the take-up winder for
filament yarn showing the embodiment according to the present
invention.
[0016] FIG. 2 is a rear view of the main part according to the
embodiment of the present invention.
[0017] FIG. 3 is a rear view showing the interlocking means
according to the embodiment of the present invention. FIG. 3A shows
the interlocking condition, and FIG. 3B shows the non-interlocking
condition.
[0018] FIG. 4 is a right side view of the conventional take-up
winder for filament yarn.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
[0019] The take-up winder for filament yarn according to the
present invention (hereinafter referred to as the take-up winder of
the present invention) will now be described based on the
embodiment shown in FIG. 1 through FIG. 3.
[0020] The take-up winder for a filament yarn 11 according to the
embodiment of the present invention comprises a turn table 14
supported capable of rotating by a machine body 12 so that to
compose a revolving device 13, two bobbin holders 15, 15 supported
by the turn table 14 so that they project in cantilever toward the
front hand side, and a contact roller 16 of which a winding bobbin
B-1 is contacted against thereon. The two bobbin holders 15, 15 are
provided in the point symmetric position to the rotating center of
the turn table 14. Each bobbin holders 15, 15 carry winding bobbins
B-1 and wound-up bobbins B-2. One of the two bobbin holders 15, 15
is located at the winding position of the contact roller 16 side,
and the other bobbin holder 15 is located at the bobbin exchanging
position. The yarn is wound around the empty bobbins carried by the
bobbin holder 15 at the winding position. The bobbin of which the
yarn is being wound around is to be referred to as a winding bobbin
B-1. As shown in FIG. 1, the wound-up bobbin (complete wound
bobbin) B-2 of which a prescribed yarn amount is wound, is on stand
by in the bobbin holder 15 at the bobbin exchanging position, to be
exchanged with an empty bobbin of which yarn is yet to be wound.
The wound-up bobbin B-2 is then exchanged with the empty bobbin,
and after the exchanging, the bobbin holder 15 of the exchanging
position is to be on stand by with the empty bobbin set on, until
the winding bobbin B-1 of the bobbin holder 15 at the winding
position becomes the wound-up bobbin B-2.
[0021] The improvement of the take-up winder for filament yarn 11
is the employment of a swinging member 21 capable of swinging in
both directions of the arrow C having the swinging center on the
center line M of which is the same as the rotating center of the
turn table 14 rotating in the direction of the arrow A, an
interlocking means 22 for interlocking the revolving device 13 and
the swinging member 21 capable of being connected and disconnected,
and a device for bobbin holder 23 provided in the swinging member
21. A braking device 17, a compressed air supplying device 18
and/or a rotating speed measuring device 19 to be mentioned later
on, correspond for the device for the bobbin holder 23.
[0022] The revolving device 13 comprises the turn table 14
supported capable of rotating via a horizontal shaft 24 by the
machine body 12, and a driving motor 25 for rotating the turn table
14 in the arrow A direction. The contact roller 16 is provided in
the designated position of the machine body 12, and is made to
rotate and drive by the driving motor 26. The contact roller 16 is
provided at a designated height position so that the elevating and
descending amount is to be reduced according to the winding
condition or not to elevate or descend. Each of the two bobbin
holders 15, 15 is made to be rotated and driven by an adjustable
speed type driving motor 27.
[0023] The turn table 14 rotates gradually to the direction of the
arrow A from the winding starting position J to the winding
terminating position K, accompanying the enlarging of the winding
diameter of the winding bobbin B-1 Likewise, the bobbin holder 15
at the winding position transfers gradually from the winding
starting position J to the winding terminating position K. At the
same time, the bobbin holder 15 at the bobbin exchanging position
also transfers from the bobbin exchanging starting practicable
position D ("interlocking starting position" to be mentioned later
on) to the bobbin exchanging terminating position ("interlocking
terminating position" to be mentioned later on) E, in the same
manner. The winding terminating position K is a position where the
wound yarn amount of the winding bobbin B-1 reaches the prescribed
amount, in other words, the position where the bobbin becomes the
wound-up bobbin B-2, and a position to be changed according to how
the kinds of the yarn, the thickness of the yarn, and the
prescribed amount of the wound yarn are determined. When the bobbin
holder 15 of the winding position reaches the winding terminating
position K, the turn table 14 rotates rapidly to the arrow A
direction to the bobbin exchanging starting position D.
Accompanying this, the bobbin holder 15 of the bobbin exchanging
position (bobbin exchanging terminating position E) is brought to
the winding starting position J, and the winding of the yarn is to
be carried out to the empty bobbin set on the bobbin holder 15.
Therefore, the wound-up bobbin B-2 set on the bobbin holder 15 at
the bobbin exchanging position is required to be exchanged with an
empty bobbin at least before the bobbin reaches the bobbin
exchanging terminating position E. In other words, the wound-up
bobbin B-2 should be exchanged with an empty bobbin between the
bobbin exchanging starting practicable position D and the bobbin
exchanging terminating position E. The time required for the bobbin
to reach the bobbin exchanging terminating position E from the
bobbin exchanging starting practicable position D, in other words,
the time required for the bobbin to reach the winding terminating
position K from the winding starting position J, is the time
required for the wound-up bobbin B-2 to be formed, and is a long
period of time.
[0024] The swinging member 21 is formed like both arms extending to
the diameter direction, supported by the horizontal shaft 24 of the
revolving device 13, and is capable of swinging to both directions
of the arrow C between the interlocking starting position D and the
interlocking terminating position E. Further, structurally, the
swinging member 21 is capable of swinging beyond the area of the
interlocking starting position D and the interlocking terminating
position E. However, due to the reasons such as there are no rooms
of more than a fixed level in a pipe 36 of the compressed air
supplying device 18, a pipe 37 of the interlocking means 22 and a
lead wire 38 of the rotating speed measuring device 19 which are
attached to the swinging member 21, when aforementioned area is
passed over, the alarm is generated electrically and the operation
of the take-up winder for filament yarn stops. As a result, the
swinging member 21 is made not to swing beyond aforementioned area.
The braking device 17 which shares the interlocking means 22, and
the compressed air supplying device 18 are provided in the lower
end side of the swinging member 21, and the rotating speed
measuring device 19 is provided in the upper end side of the
swinging member 21.
[0025] The braking device 17 of which shares the interlocking means
22 comprises brake wheels 29, 29 attached to the back end of
rotating shafts 27a , 27a of the driving motors 27, 27 which drives
each bobbin holders 15, 15, a brake shoe 31 which advances and
recedes by being guided by a guiding member 30 provided in the
swinging member 21, and an operating tool 32 which is formed by the
air cylinder or the like which advances and recedes a brake shoe
31. The advancing and receding area of the brake shoe 31 is between
the receding position F where the swinging of the swinging member
21 is not interrupted, and the advancing position G contacting and
pressing against a periphery surface 29a of the brake wheel 29. The
pipe 37 having flexibility such as a hose is connected to the
operating tool 32, for supplying compressed air. A pressing surface
31a (refer to FIG. 3) of the brake shoe 31 is formed like an arc,
so that the brake shoe 31 is capable of holding in the periphery
surface 29a of the brake wheel 29. When the brake shoe 31 advances
to the advancing position G to hold in, the brake wheel 29 which is
to be a part of the revolving device 13, and the swinging member 21
are interlocked, and the brake is applied to the bobbin holder 15
and the driving motor 27 of which are rotating by inertia.
Contrary, when receding to the receding position F, the brake wheel
29 of which is to be a part of the revolving device 13, and the
swinging member 21 are brought into non-interlocked state.
[0026] The braking device 17 sharing the interlocking means 22
turns along with the bobbin holder 15 carrying the wound-up bobbin
B-2, advances the brake shoe 31 on stand by under non-interlocking
state (refer to FIG. 3B), and contacts against the brake wheel 29
which has reached the interlocking starting position D, to reach
the interlocking state (refer to FIG. 3A). When this interlocking
state is maintained, the swinging member 21 rotates in the
direction of the arrow A along with the turn table 14 (wound-up
bobbin B-2), and reaches the interlocking terminating position E.
Then, the brake shoe 31 recedes so that non-interlocking state is
reached. After swinging following the revolving device 13 toward
the interlocking terminating position E from the interlocking
starting position D, the swinging member 21 is made to return
forcibly to the interlocking starting position D from the
interlocking terminating position E by the return motor 33, so that
the swinging member 21 can return accurately to the interlocking
starting position D. Further, when swinging from the interlocking
starting position D to the interlocking terminating position E, the
return motor 33 can be driven subsidiary.
[0027] The interlocking means 22 is not to be limited for the case
in which sharing with the braking device 17, but can be provided
separately with the braking device 17. The drawings are
abbreviated, however, the interlocking means of a different
embodiment can be comprising an interlocking plug rotating in a
unity with a turn table 14 provided in the back end side of the
driving motor 27 for example, and an interlocking pin capable of
advancing and receding provided in the swinging member 21; and can
be formed to be connected and disconnected by inserting and
exerting the interlocking pin to the interlocking plug.
[0028] The compressed air supplying device 18 comprises a
compressed air inlet 34a provided in the center of the back end
side of the brake wheel 29, and a compressed air supplying tool 34
provided freely advancing and receding in the swinging member 21.
When the revolving device 13 and the swinging member 21 are
interlocked, by interlocking the advanced compressed air supplying
tool 34 to a compressed air inlet 34a, the compressed air for
releasing the bobbin is supplied to the bobbin holder 15. Further,
when the revolving device 13 and the swinging member 21 are not
interlocked, by receding the compressed air supplying tool 34, the
revolving device 13 and the swinging member 21 can be transferred
separately. For the supplying of the compressed air, a pipe having
flexibility such as a hose is connected to the compressed air
supplying tool 34.
[0029] The rotating speed measuring device 19 which measures the
rotating speed of the bobbin holder 15 during the winding process,
comprises a sensor 35 provided in the swinging member 21, and a
measuring circuit (not shown in the drawings) provided in the
machine body 12 side, and the sensor 35 and the measuring circuit
are connected by the lead wire 38. Since the swinging member 21
swings within a designated area in both directions of the arrow C,
the sensor 35 and the measuring circuit can be connected directly
by the lead wire 38 without intervening the slip ring in the midst
of the lead wire 38. The sensor 35 detects the rotating speed by
approaching under non-contacting state, to protrusions 29b, 29b
projecting from the back end side of the brake wheel 29, in the
case the revolving device 13 and the swinging member 21 are
interlocked.
[0030] Next, the operation of the take-up winder for filament yarn
11 of the embodiment according to the present invention will now be
described.
[0031] When the filament yarn (such as polyester filament yarn,
nylon yarn, urethane rubber yarn) of the designated amount is wound
up in the winding bobbin B-1, the take-up winder for filament yarn
11 rotates the turn table 14 rapidly in the arrow A direction, and
the bobbin holder 15 holding the wound-up bobbin B-2 is transferred
to the interlocking starting position D in the lower section. In
addition, the bobbin holder 15 holding an empty bobbin is
transferred to the winding position J. Consequently, the
transferring of the yarn is carried out between the wound-up bobbin
B-2 and the empty bobbin contacting against the contact roller 16,
and the brake shoe 31 of the braking device 17 sharing the
interlocking means 22 is advanced immediately and is pressed
against the brake wheel 29 of the bobbin holder 15 of the wound-up
bobbin B-2 side. The revolving device 13 and the swinging member 21
are interlocked immediately, and the brake is applied to the bobbin
holder 15 of the wound-up bobbin B-2 side which is rotating by
inertia.
[0032] Further, the transferring of the yarn and the interlocking
by the interlocking means 22, are carried out with the revolving
device 13 stopped, but can be carried out within a short suspension
time. When the transferring of the yarn is carried out, the yarn is
wound around an empty bobbin, and the revolving device 13 rotates
gradually accompanying the enlarging of the winding diameter of the
winding bobbin B-1. The distance between the winding bobbin B-1 and
the contact roller 16 are to be the distance corresponding to the
winding diameter. The contacting of the winding bobbin B-1
pressuring against the contact roller 16 is maintained at an
appropriate state. Since the swinging member 21 under the
interlocking state transfers along with the revolving device 13
(winding bobbin B-1 and wound-up bobbin B-2), even when the bobbin
holder 15 of the winding bobbin B-1 side changes the position, the
rotating speed of the bobbin holder 15 of the winding bobbin B-1
during the winding process can be measured by the rotating speed
measuring device 19.
[0033] Moreover, even when the bobbin holder 15 of the wound-up
bobbin B-2 side changes the position, the compressed air for
releasing the bobbin is supplied to the bobbin holder 15 of the
wound-up bobbin B-2 side by the compressed air supplying device 18,
and the wound-up bobbin B-2 can be released from the bobbin holder
15 and exchanged with an empty bobbin.
[0034] The bobbin holder 15 of which received the supplying of the
compressed air for releasing the bobbin, finishes the preparation
of the next transferring process of the yarn by the wound-up bobbin
B-2 and the empty bobbin being exchanged. The exchanging work of
the wound-up bobbin B-2 and the empty bobbin is to be completed
before the swinging member 21 reaches the interlocking terminating
position E. Thus, such work can be carried out under the condition
in which plenty of time is available. It becomes ready for the next
yarn transferring process when the swinging member 21 arrives at
the interlocking terminating position E. Therefore, after the
interlocking by the interlocking means 22 is cancelled, the
swinging member 21 is returned forcibly to the interlocking
starting position D from the interlocking terminating position E by
the return motor 33, and stands by until the next yarn transferring
process is completed.
[0035] Likewise, the take-up winder for filament yarn 11 comprises
a swinging member 21 and the interlocking means 22. The device for
bobbin holder such as the compressed air supplying device 18, the
rotating speed measuring device 19 are to be provided in the
swinging member 21. Therefore, even when the positions of the
bobbin holders 15, 15 are changed, the device for the bobbin holder
can be worked on the bobbin holder of any changed position. As a
result, the defects, such as the bobbin exchanging work is needed
to be carried out instantly, the reliability of the measurement is
needed to be reduced so that the measurement of the rotating speed
of the bobbin holder can be carried out at any position, can be
eliminated.
[0036] The take-up winder of the present invention is capable of
transferring the device for bobbin holder associated with the
change in the position of the bobbin holder. As a result, even when
the bobbin holder changes its position, the operation, the
processing or the like can be carried out easily to the bobbin
holder by the device for the bobbin holder.
[0037] The take-up winder of the present invention is capable of
transferring the compressed air supplying device for the bobbin
releasing operation associated with the change in the position of
the bobbin holder. As a result, the bobbin exchanging work can be
carried out even when the bobbin holder changes its position, the
time limit to the bobbin exchanging work is eliminated, and the
speeding up of the spinning speed is no longer limited from the
bobbin exchanging work side.
[0038] The take-up winder of the present invention is capable of
transferring the sensor associated with the change in the position
of the bobbin holder. Therefore, the take-up winder of the present
invention can transmit a signal by the lead wire without
intervening the slip ring in the measuring circuit from the sensor,
enabling the improvement of the reliability in the measuring.
* * * * *