JP3279748B2 - Switching winder for yarn - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a yarn switching device in which a yarn is wound on a bobbin mounted on one bobbin holder, and when the yarn reaches a predetermined winding amount, the yarn is sequentially switched to another bobbin holder. It relates to a winder.

[0002]

2. Description of the Related Art A conventional switching winder is disclosed in Japanese Unexamined Patent Publication No. Hei.
As described in Japanese Patent Publication No. 71, two bobbin holders are protruded from a cylindrical turret table at a predetermined interval, and the turret table is rotated in accordance with the thickening of the yarn, and is wound on one bobbin holder. When the yarn reaches a predetermined amount, the turret table is rotated about half a turn, the two bobbin holders are replaced, and the winding of the yarn is switched to the other bobbin holder. Further, the turret table is rotated as the yarn wound on the other bobbin holder becomes thicker, and the above operation is repeated.

In addition, the inventor has two bobbin holders, presses a contact roller against a bobbin on one bobbin holder, and traverses the yarn with a traversing device while traversing the yarn. A first slider guiding means for guiding the bobbin holder, wherein the yarn is sequentially switched to the bobbin of the other bobbin holder when the yarn wound on the bobbin reaches a predetermined amount; It has a second slider guide means for guiding the bobbin holder, and sliders are respectively provided so as to be able to reciprocate along the first and second slider guide means, the bobbin holder being carried by a carrier, The present invention proposes an automatic switching winder, wherein the carrier can be transferred to the sliders of the first and second slider guides. Ri (Japanese Patent Application No. 4-129939
In this device, after the yarn is switched, the carrier supporting the bobbin holder is replaced between the two slider guides.

[0004]

SUMMARY OF THE INVENTION The above-mentioned Japanese Patent Application Laid-Open No. Hei 2-2
In the apparatus described in Japanese Patent No. 76771, two bobbin holders are exchanged, and the yarn is switched to the other bobbin holder. At this time, the turret table is rotated as the yarn wound on the other bobbin holder becomes thicker, and it is difficult to take out the package from the moving bobbin holder because the bobbin holder is moving when the package is taken out. Is accompanied.

Further, in order to prevent the packages on both bobbin holders from coming into contact with each other, the package is taken out from the other bobbin holder while the amount of yarn wound on the bobbin on the winding bobbin holder is very small. It has to be taken out, and there is difficulty in automation to secure such timing.

On the other hand, in the device proposed earlier by the present inventor, it is necessary to instantaneously change the slider between the slider guide means after switching, and it has been difficult to put the device into practical use.

[0007]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a switching winding machine which facilitates the automatic exchange of a package and a bobbin in a winding machine. The entire switching winding machine is compact and practical. It is to provide a device.

[0008]

According to the present invention, a bobbin holder is mounted on one of the bobbin holders, a contact roller is pressed against the bobbin, and the yarn is traversed by a traverse device. When the amount of the yarn wound around the one bobbin holder reaches a predetermined amount, in the yarn switching winder in which the yarn is sequentially switched to the bobbin of the other bobbin holder, the contact roller may be moved relative to the bobbin holder. And the bobbin holder is retractable with respect to the contact roller, the contact roller is positioned near the stroke end when the yarn is switched, and the bobbin holder on the winding side removes the package. Position and the other empty bobbin holder is positioned near the stroke end. Is moved to a position in contact with the contact roller that location, the package pickup position near
The package wound on the bobbin holder
Until that, the contact roller as wound expansion of the yarn so as to retract from the bobbin holder in contact with the contact roller, after which the package is Eject, the bobbin holder is retracted relative to the contact roller the yarn switching winder, characterized in that the yarn has a winding so that said bobbin while achieving the above object.

Further, in the present invention, two bovis
Bobbin mounted on one bobbin holder
Then, a contact roller is pressed against the bobbin to
While traversing the yarn with a bobbin holder,
When the amount of yarn wound on the
Threads that are sequentially switched to the bobbin of the holder
In the above-described switching winder, the contact roller may be
A predetermined stroke can be moved with respect to the bobbin holder.
With the bobbin holder on the contact roller
The contact can be retracted when the yarn is switched.
The roller is located near the stroke end,
When the bobbin holder is moved to the package removal position
In both cases, the other empty bobbin holder is
Contacts the contact roller located near the edge of the
Until the contact roller reaches the vicinity of the end opposite to the stroke end .
As the weight increases, the contact roller
To retract from the bobbin holder that is in contact with the
And the contact roller is on the side opposite to the stroke end.
After reaching the end of the bobbin, the bobbin holder
While retracting to the contact roller, the yarn is
It is also possible to provide a yarn switching and rewinding machine characterized in that the yarn is wound around the yarn.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the drawings illustrating embodiments of the present invention. 1 to 8 are front views of an embodiment of the present invention, and FIGS. 1 to 8 show the order of thread switching over time in the order shown. Next, the configuration of the present invention will be described with reference to the drawings.

A machine frame 1 is mounted on a base 2 composed of a pair of channels, and a supporter 3 protruding from the machine frame 1 is provided.
A frame 5 is supported so as to be able to swing up and down around a fulcrum 4, and a contact roller 7 is rotatably carried on the frame 5.

In this embodiment, as shown in FIG.
The rear end of the air cylinder 31 is connected to the supporter 3 by a pin 29, and the piston rod of the air cylinder 31 is
And a predetermined compressed air is supplied to the cylinder 31 so that the frame 5 and the contact roller 7
And a predetermined pressing force is applied between the contact roller 7 and the bobbin holders 8 and 11 being wound.

Further, a traverse device 6 protrudes from the machine frame 1 in parallel with the contact roller 7. In this embodiment, an endless groove (not shown) formed on the cylindrical peripheral surface is used.
Guide 6a is attached to a slide (not shown) slidably engaged with
A known traverse device is used in which the yarn is traversed by the guide 6a, but another known traverse device may be used.

A guide device 28 is provided in the shape of the traverse device 6, and when the yarn is switched, the yarn removed from the guide of the traverse device 6 is regulated near the end of the bobbin to form a pigtail (transfer tail). . The threading device 28 is configured by a known method.

The machine frame 1 has a substantially inverted triangular opening 1a.
Is formed on the lower side of the frame 5, and the first slider guide means 20 is fixedly installed inside the machine frame 1 near the right side of the opening 1 a which is close to the vertical.

A shaft 18 extending in the axial direction of the bobbin holders 8 and 11 described below is provided on the left side below the opening 1a of the machine frame 1 so that the second slider guide means 17 can swing by the shaft 18. I support it. Fluid pressure cylinder 19
Is connected to the machine frame 1 and the tip of the piston rod is connected to the second slider guide means 17.
9 allows the second slider guide means 17 to swing about the axis 18 in the direction of arrow A in FIG.

The slider 13 is moved to the second slider guide 17
The slider 1 is provided so as to be slidable up and down along
4 is slidable up and down along the first slider guide means 20. That is, as shown in FIG. 9, a nut 22 is fixed to the slider 14, and the nut 22 is screwed with a bolt 21 rotatably supported in parallel with the first slider guide means 20. 21 to rotate the slider 14 up and down (in the direction of arrow C in FIG. 1).
Slide and move. Similarly, as shown in FIG. 10, a nut 25 is fixed to the slider 13, and the nut 25 is screwed with a bolt 26 rotatably supported by the second slider guide means 17. 26 to rotate the slider 13 up and down (arrow B in FIG. 1).
Direction).

By electromagnetically locking (servo-locking) the stepping motors 23 and 27, the slider 1
4 and 13, respectively, the first and second slider guide means 20,
17 can be fixed at a predetermined position (winding position, unloading position, etc.).

Carriers 15, 16 are mounted on sliders 13, 14, respectively.
The bobbin holder 8 is supported by a carrier 15 together with a drive motor (not shown), and the bobbin holder 11 is supported by a carrier 16 together with a drive motor (not shown).

Carriers 15, 16 and sliders 13, 14
Can be integrated as shown in FIGS. 16 to 19, for example, and a magnet or the like may be used.

That is, in FIG.
6, a piston 61 is slidably mounted in the cylinder chamber 60 in a sealed state, and the tip of the protruded piston 61 is engaged with the concave portion 14e of the slider 14 so that the carrier 16 and the slider 14 are integrally connected.

In the embodiment shown in FIG. 17 and FIG.
The wedge 62 is driven between the dovetail groove formed on the wall surface of the helmet.

In FIG. 19, a locking hook 63 is provided at the lower end of the slider 14 so as to be rotatable around a pin 64,
A spring 65 urges the carrier 16 into an engagement position.

The carrier attachment / detachment mechanism for attaching / detaching the slider and the carrier is not limited to the above-described mechanism, and if the attachment / detachment of the slider and the carrier can be surely performed, an appropriate structure such as a mechanical type, an electromagnetic type, a fluid pressure type, etc. it can.

A carrier 15 connected to the slider 14,
16 moves down along the first slider guide means 20 from the winding position where the bobbins on the bobbin holders 8 and 11 contact the contact roller 7 by the movement of the slider 14 along the first slider guide means 20, and doffs. It can be moved to a position.

The carriers 15 and 16 integrally connected to the slider 13 are swung around the shaft 18 of the second slider guide means 17 and moved along the second slider guide means 17 by the above-mentioned movement. From the doffing position to the standby position near the winding position, and further from the standby position to the winding position.

The machine frame 1 is provided with a sensor 47 (a limit switch in FIG. 1, but other known sensors may be used) for detecting the amount of movement of the frame 5 having the contact roller 7, and the yarn winding. During contacting, when the contact roller 7 moves upward by a small amount due to the winding of the package, the moving amount is detected by the sensor 47, and the slider 14 supporting the bobbin holder 11 being wound is moved downward by a predetermined amount (the bobbin holder is (In the direction of detaching from the contact roller 7). The sensor 47 that detects the amount of movement of the contact roller is provided near the upper limit of the movement stroke of the contact roller 7.

The moving amount of the contact roller 7 is set at least as follows. That is, the amount of movement of the contact roller 7 after the bobbin holders 8 and 11 on which the moving package has been wound has been moved to the unloading position is determined by the carrier at the winding position and the unloading position after the bobbin holders 8 and 11 are moved to the unloading position. The thickness of the yarn wound on the bobbin holder on the take-up side must be exceeded before the transfer is completed.

The bobbin holder 8 waiting at the standby position is positioned as follows. That is, when the bobbin holder 8 is moved to the winding position by the switching, the bobbin 9 mounted on the bobbin holder 8 comes into contact with the contact roller 7 located near the lower limit of the movement stroke at the winding position. Next, the waiting bobbin holder 8 is located at the standby position.

In this embodiment, the carriers 15, 1
6 is fixed to that position by the carrier attaching / detaching mechanism 33 provided on the machine frame 1 when it descends to its lower end. The carrier attaching / detaching mechanism 33 includes a holding member 52. As shown in FIG. 11 and FIG. 12, the slopes 15 a, 15 b and 16 a, 16
b is formed, and a pin 53 is provided between the two inclined portions. Further, the distal end of the holding member 52 whose lower end is fixed to the machine frame 1 is a tapered slope 52b, 52c. Gradient portion 15a, 15b or 16 of carrier 15, 16
a, 16b and the slope portions 52b, 52c of the holding member 52
Are engageable with each other.

The internal structure of the holding member 52 will be described with reference to FIGS. A U-shaped concave portion 52a for receiving the pins 53 of the carriers 15, 16 from the end of the holding member 52 is formed. Also, when viewed from above, U
An elongated hole 52d is formed orthogonal to the letter-shaped concave portion 52a.

In the elongated hole 52d, a quadrant-shaped hook 54 is rotatably supported around a pin 55 attached to a holding member. The upper end portion 54a of the hook 54 is a hook portion protruding in a nose shape. When the hook 54 is sufficiently rotated counterclockwise around the pin 55, the hook portion 54a 53.

A rear end 56a of the fluid pressure cylinder 56 is pivotally attached to the holding member 52 so as to be swingable, and a joint 57 at the tip of the fluid pressure cylinder 56 is pivotally attached to the rear end of the hook 54.

The operation of this embodiment having the above structure is shown in FIG.
1, will be described with reference to FIG. 13 and 14, the joint 57 is retracted by operating the hydraulic cylinder 56, the hook 54 is rotated clockwise around the pin 55, and the U-shaped concave portion 52a is opened. FIG.
As shown in FIG. 2, the carrier 16 is lowered to the lower end position. Thereby, the gradient parts 16a, 16b of the carrier 16
And the slope parts 52b and 52c of the holding member 52 engage with each other. Here, the hydraulic cylinder 56 shown in FIGS. 13 and 14 is actuated to advance the joint 57 to rotate the hook 54 counterclockwise around the pin 55, and the hook 54a of the hook 54 The carrier 16 can be held in a fixed position by engaging with the pins 53 of FIG.

In FIG. 1, a bobbin 9 is mounted on a bobbin holder 8 which stands by at a standby position, and the bobbin holder 8 is carried on a carrier 15 integrated with a slider 13. A bobbin 12 is mounted on a bobbin holder 11 on which the package 10 is wound.
Is wound up. The bobbin holders 8 and 11 are driven by electric motors (not shown) mounted on carriers, respectively.
During the winding of the yarn, the rotation speed of the contact roller 7 is controlled by a controller (not shown) by a known method so as to be a predetermined rotation.

At the package removal position, the package 1
A plate 35 that engages with the bobbins 9 and 12 on which 0 has been wound is provided so as to be pushed in parallel to the bobbin holders 8 and 11 by a cylinder (not shown). After the switching, the bobbin holders 8 and 11 are moved to the package take-out position, and the bobbins 9 and 1 on which the package 10 has been wound at that position.
The plate 35 engaging with the second 2 is pushed out in parallel with the bobbin holders 8 and 11 by a cylinder (not shown), and the package 10 is pushed out. The bobbin holders 8 and 11 are slidable in the axial direction of the bobbin holders 8 and 11 by a cylinder (not shown) when the yarn is switched.

Next, the operation of this embodiment having the above configuration will be described. As shown in FIG. 1, the package 10 is wound on the bobbin 12 mounted on the bobbin holder 11, and the contact roller 7 pressed against the package 10 moves a small distance upward in accordance with the winding. The sensor 47 is turned on by a minute movement in the upward direction of the contact roller 7,
Thereby, the stepping motor 23 (FIG. 9) is started. Then, the bobbin holder 11 descends downward, and when the sensor 47 is turned off, the stepping motor 23 stops. Hereinafter, the above operation is repeated according to the winding of the package 10.

When the downward movement of the bobbin holder 11 is started, the stepping motor 27 is started and the slider 1 is moved.
3. The bobbin holder 8 is moved together with the carrier 15 to a predetermined position along the second slider guide means 17, and the stepping motor 27 is electromagnetically locked.
Is fixed at a predetermined position on the second slider guide means 17, and the bobbin 9 mounted on the bobbin holder 8 contacts when the second slider guide means 17 swings clockwise (direction A) around the shaft 18 in the future. The position is set so as to be in contact with the roller 7.

When the package 10 reaches a predetermined winding amount (see FIG. 2), the rotation of the bobbin holder 8 on the second slider 13 is started. When the bobbin holder 8 reaches a predetermined number of revolutions, the stepping motor 23 (FIG. 9) is started to move the bobbin holder 11 along with the slider 14 and the carrier 16 downward along the first slider guide means 20 to contact the roller. 7 and is moved to the bobbin take-out position, and is fixed at that position by the carrier attaching / detaching mechanism 33.

Next, the yarn removing guide 28 is swung clockwise (leftward in FIG. 1) by a cylinder (not shown),
The yarn Y is removed from the traverse guide 6a of the traverse device 6, and the guide device uses the yarn gripping means of the bobbin 9 near the end of the package 10 (in this embodiment, a groove formed on the outer periphery of the paper tube is used. The yarn is wound on the package 10 while regulating the yarn at the position (see FIG. 3).

The second slider guide means 17 is connected to the cylinder 19
When the bobbin 9 on the bobbin holder 8 comes into contact with the yarn passing from the contact roller 7 to the package 10 when the bobbin 9 swings in the direction of the arrow A (clockwise) around (FIG. 1), the bobbin 9 holds the yarn. The yarn is gripped. During this time,
A small amount of bunch winding (stick winding) is formed near the gripping means (see FIG. 4).

As shown in FIG. 5, the second slider guide means 17 is swung to a state parallel to the first slider guide means 20, and the bobbin holder 8 is fixed at a predetermined position. Next, a transfer tail (pig tail) is formed on the bobbin 9 by the relative movement of the guide device 28 and the bobbin holder 8 in the axial direction. When the movement of the bobbin holder 8 in the axial direction is completed, the yarn is released from the guide device 28, is gripped by the yarn guide of the traverse device 6, and the yarn is traversed by the traverse device 6 (see FIG. 5).

When the switching is completed, the bobbin holder 11 supported by the slider 14 is stopped by a braking device (not shown).

The engagement between the carrier 16 and the slider 14 is released by the carrier attaching / detaching mechanism. In this state, the carrier 16
The slider 14 is returned by the stepping motor 23 to another carrier 15 at the take-up position, leaving the take-out position. At the winding position, the slider 14 and the carrier 15 are integrated by a carrier attaching / detaching mechanism (FIG. 6).

Next, the package 10 at the unloading position
Is pushed out by the plate 35, and the empty bobbin 9 is mounted (see FIG. 7). Further, the slider 13 engaged with the carrier 15 by the carrier attaching / detaching mechanism on the slider 13
Is removed from the carrier 15, lowered by the stepping motor 27 to the take-out position, and engaged with the carrier 16 there (FIG. 7).

In the state shown in FIGS. 5 to 7, the carrier is fixed and the bobbin holder 8 is located at the lower end of the contact roller 7, and the bobbin 9 is wound on the bobbin 9 mounted on the bobbin holder 8 according to the thickness of the package. The contact roller 7 moves upward, and the sensor 47 near the rising end.
Is turned on, the stepping motor 23 is started, the bobbin holder is lowered, and when the sensor 47 is turned off, the stepping motor 23 stops. During this time, the distance between the yarn guide 6a of the traverse device 6 and the point where the yarn comes into contact with the contact roller 7 is reduced (from FIG. 20 to FIG. 2).
1).

Thereafter, when the contact roller 7 pressed against the package moves a small distance upward, the sensor 47 is turned on, and the stepping motor 23 engaged with the carrier at the winding position is started, and When the bobbin holder descends and the sensor 47 is turned off, the stepping motor 23 stops. Thereafter, the same operation is repeated. During this time, control is performed such that the distance between the yarn guide of the traverse device and the contact point between the contact roller and the yarn is kept substantially constant (FIG. 21).

Next, the carrier 16 is released from the carrier attaching / detaching mechanism 33, the second slider guide means 17 is rotated around the shaft 18 (FIG. 8), and the slider 13 supporting the bobbin holder 11 is moved by the stepping motor 27. The bobbin holder 11 is moved up in the axial direction and stopped, and the bobbin holder 11 is moved in the axial direction so that the thread removed from the traverse corresponds to the gripping means formed on the bobbin at the time of switching (see FIG. 1).

When the amount of the yarn wound on the bobbin holder 8 during winding reaches a predetermined amount, the bobbin holder 11 at the standby position is set.
Is activated, and the same operation as described above is repeated.

The above-described operation is repeated in accordance with the winding of the package 10, and the package 10 at the take-out position is pushed out by the plate 35 and the empty bobbin 9 is mounted until the predetermined winding diameter is reached (see FIG. 7).

In this embodiment, the bobbin holders are provided on different carriers so as to circulate. However, according to the present invention, two bobbin holders are provided on one turret table to be in contact with the bobbin holder. A winding device configured to detect a moving amount of a contact roller by thickening a package and to rotate the turret table so that an axis of a bobbin holder protruding from the turret table moves away from the contact roller. It can also be implemented as

In this embodiment, the distance between the yarn guide of the traverse device and the contact point between the contact roller and the yarn is changed. However, the traverse device is arranged on a frame supporting the contact roller, and (See FIG. 22).

[0053]

The present invention has two bobbin holders,
A bobbin is mounted on one of the bobbin holders, a contact roller is pressed against the bobbin, and the traverse device traverses the yarn. When the amount of the yarn wound on the one bobbin holder reaches a predetermined amount, the other bobbin holder is used. In the yarn switching winder in which the yarn is sequentially switched to the bobbin, the contact roller can move a predetermined stroke with respect to the bobbin holder, and the bobbin holder can be retracted with respect to the contact roller. When the yarn is switched, the contact roller is located near the stroke end, the bobbin holder on the winding side is moved to the package unloading position, and the other empty bobbin holder is located near the stroke end. Of the yarn that is moved to a position where it contacts the contact roller. It is a Kawamaki winder. That is, the present invention
Adjusts the position of the bobbin holder when winding the yarn around the bobbin.
Take up while fixing and retracting the contact roller
And fix the position of the contact roller to secure the bobbin holder.
Constructed to be able to both take up while retracting
It is a switchable winding machine. Then, in the present invention, Pas
Wound on the bobbin holder at the package removal position
The package is removed or the contact rollers are
Switching to reach near the end opposite the troke end
Until the predetermined condition at the initial stage is satisfied, the contact roller is retracted from the bobbin holder as the yarn becomes thicker, and the predetermined condition at the initial stage of switching such as removal of the package is satisfied. After that, the bobbin holder retracts with respect to the contact roller while the yarn is
It has been the take-up so that to the bobbin. In the present invention, until the predetermined condition at the time of initial switching is satisfied, the yarn
The contact roller as the bobbin holder
The bobbin holder on the take-out side is fixed at a predetermined position immediately after the yarn is switched, so that the doffing operation can be easily automated. Further, since the braking time of the bobbin holder on the doffing side after the switching is sufficient, the life of the braking member is extended, and the maintainability is improved. Also, for example, turret type switching winding
Even after removing the package on the machine, the yarn becomes thicker
To retract the contact roller from the bobbin holder
In this case, the bobbin hob carried on the turret
Contact roller until package on ruda is completely wound
Retracts from the bobbin holder. For this reason, the switching winder
The size of the body becomes extremely large. In contrast, the present invention
After the package is taken out,
Ruda retracts to the contact roller and moves the yarn forward
It is wound around the bobbin, so it is
The overall size of the machine is extremely compact and practical
The value is greatly increased.

[Brief description of the drawings]

FIG. 1 is a front view of one embodiment of the present invention.

FIG. 2 is a front view of one embodiment of the present invention, showing a state following FIG. 1;

FIG. 3 is a front view of the embodiment of the present invention, showing a state following FIG. 2;

FIG. 4 is a front view of the embodiment of the present invention, showing a state following FIG. 3;

FIG. 5 is a front view of the embodiment of the present invention, showing a state following FIG. 4;

FIG. 6 is a front view of the embodiment of the present invention, showing a state continuing from FIG. 5;

FIG. 7 is a front view of the embodiment of the present invention, showing a state following FIG. 6;

FIG. 8 is a front view of the embodiment of the present invention, showing a state continued from FIG. 7;

FIG. 9 is a front view of the first slider guiding means, showing a driving unit for moving the slider.

FIG. 10 is a front view of the second slider guide means, showing a drive unit for moving the slider.

FIG. 11 is an embodiment of a carrier attaching / detaching mechanism.

FIG. 12 is a front view of a carrier attaching / detaching mechanism.

FIG. 13 is a perspective view of the holding member shown in FIGS. 11 and 12;

FIG. 14 is a sectional view taken along lines 14-14 in FIG.

FIG. 15 is a view taken in the direction of arrow 15 in FIG. 11;

FIG. 16 is a sectional view of an embodiment of an apparatus for integrally connecting a carrier and a slider.

FIG. 17 is a sectional view of an embodiment of an apparatus for integrally connecting a carrier and a slider.

FIG. 18 is a view of the embodiment of the apparatus for integrally connecting the carrier and the slider, taken along line 18-18 in FIG. 17;

FIG. 19 is a front view of an embodiment of an apparatus for integrally connecting a carrier and a slider.

FIG. 20 shows a positional relationship between a bobbin holder and a contact roller immediately after thread switching.

FIG. 21 shows a positional relationship between a bobbin holder and a contact roller at a rising end of the contact roller.

FIG. 22 shows another embodiment.

[Explanation of symbols]

 Reference Signs List 1 machine frame 1a opening 2 base 3 supporter 4 fulcrum 5 frame 6 traverse device 6a guide 7 contact roller 8 bobbin holder 9 bobbin 11 bobbin holder 12 bobbin 13 slider 14 slider 15 carrier 16 carrier 17 second slider guide means 18 shaft 19 fluid pressure cylinder 20 1st slider guide means 21 bolt 22 nut 23 stepping motor 25 nut 26 bolt 27 stepper motor 28 guide device 29 pin 30 pin 31 air cylinder 47 sensor

──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Seiji Yoshioka 77 Eki Kitayoshida-cho, Matsuyama-shi, Ehime Teijin Machinery Inside Matsuyama Plant Co., Ltd. (72) Inventor Toshiyuki 77 77 Kitayoshida-cho, Matsuyama-shi Ehime Eki Seiki (56) References JP-A-1-167187 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) B65H 67/044 B65H 67/052

Claims (4)

(57) [Claims] A bobbin is mounted on one of the bobbin holders, a contact roller is pressed against the bobbin, and the yarn is wound around the one bobbin holder while traversing the yarn by a traverse device. When the yarn reaches a predetermined amount, in the yarn switching winder in which the yarn is sequentially switched to the bobbin of the other bobbin holder, the contact roller can move a predetermined stroke with respect to the bobbin holder. The bobbin holder is retractable with respect to the contact roller, the contact roller is located near the stroke end when the yarn is switched, the bobbin holder on the winding side is moved to the package unloading position, and One empty bobbin holder contacts the contact roller located near the stroke end. Moved position to which the package
The bobbin holder at the cage removal position
Until Kkeji is fetched, the contact roller as wound expansion of the yarn in contact with the contact roller
From the bobbin holder
After chromatography di is Eject, the yarn while the bobbin holder is retracted relative to the contact roller to the bobbin
Switching winder yarn, characterized in that the winding so that. 2. A bobbin holder having two bobbin holders.
Install the bobbin on the holder, and
Pressure, and traverse the yarn with a traverse device.
First, the yarn wound around the one bobbin holder has a predetermined amount.
When it reaches, thread the bobbin of the other bobbin holder in order.
In the yarn change-up winder that switches to the next
The contact roller is in a predetermined position with respect to the bobbin holder.
The trolley is movable and the bobbin holder is
Is retractable with respect to the contact roller,
When the contact roller is switched to the stroke end
The bobbin holder on the winding side is
Moved to the unloading position and the other empty
The bobbin holder is located near the end of the stroke.
The contact roller is moved to a position where it comes into contact with the contact roller, and until the contact roller reaches the vicinity of the end opposite to the stroke end, the contact becomes larger as the yarn becomes thicker.
A bobbin holder that contacts a roller with the contact roller
With the contact roller in front of
After reaching near the end opposite to the stroke end ,
The bobbin holder retracts with respect to the contact roller.
A yarn switching and winding machine , wherein the yarn is wound around the bobbin while the yarn is wound . 3. The traverse device is arranged side by side with the contact roller and is fixed to a machine frame. After the yarn is switched, the distance between the yarn guide of the traverse device and the contact point between the contact roller and the yarn is reduced. 3. The yarn switching and winding machine according to claim 1, wherein the yarn is switched. After wherein the yarn switching, yarn switching winding according to claim 1 or 2, and the traverse device and the contact roller and said substantially that so as to move integrally Taker.