WO1999048787A1

WO1999048787A1 - Thread switching winder and winding method

Info

Publication number: WO1999048787A1
Application number: PCT/JP1999/001427
Authority: WO
Inventors: Takami Sugioka; Toshihiro Yudate; Seiji Yoshioka
Original assignee: Teijin Seiki Co., Ltd.
Priority date: 1998-03-26
Filing date: 1999-03-23
Publication date: 1999-09-30
Also published as: AU2854599A; CN1155499C; DE19983057T1; KR100553355B1; TW434179B; CN1295533A; KR20010042172A

Abstract

A thread switching winder capable of solving problems, such as a difficult automation, a complicated doffer, an increased waste thread and a lowered switching success rate, wherein while a wound diameter reaches a specified wound diameter (D1) from a wound diameter (D0) at a thread winding starting, thread is taken up while a turret table (2) is fixed at a specified position and a contact roller (7) is moved from the winding start position to a position at which the wound diameter of a package has been increased to a specified diameter (D1), during that time, a wound diameter increasing rate encountered while the contact roller retracts from a bobbin holder (3) is learned; during the time required for the wound diameter of the package to reach a maximum wound diameter (Dmax) from the specified wound diameter (D1), a subsequent wound diameter increasing rate is calculated based on the learned wound diameter increasing rate; and the turret table is turned in a direction in which the bobbin holder retracts from the contact roller so that the contact roller returns from the position of the contact roller when in contact with the package with the specified wound diameter (D1) to that when in contact with the package at the thread winding starting (D0).

Description

Description Yarn changeover winding machine and winding method

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a winding machine and a winding method of a yarn for winding a continuously supplied yarn, and more particularly to a device for continuously supplying a yarn such as a synthetic fiber spinning and winding device. The present invention relates to a yarn change-over winding machine and a winding method suitable for performing the above operation. Background art

Japanese Unexamined Patent Publication No. 2-2767671 discloses a winding device for a continuously fed yarn, in which a rotatable bobbin revolver is provided, and the bobbin revolver has two winding devices. A spindle is supported, and a switching device and a contact roller force are provided in front of the bobbin revolver when viewed in the yarn traveling direction, and the outer peripheral surface of the contact roller is formed on one of the winding spindles at the working position. The distance between the axis of the contact roller and the axis of the take-up spindle in the working position, which is in contact with the outer peripheral surface of the bobbin, gradually increases during the winding process due to the rotation of the bobbin reporn. The contact roller is supported on a support, wherein the contact roller is in the working position. The contact roller is configured to be movable so as to perform a stroke movement with a component force in a radial direction relative to the winding spindle, and a predetermined force acts on the contact roller in the movement direction of the support. The bobbin revolver is connected to a rotary drive, which drives the bobbin revolver to increase the distance between the axis of the contact roller and the axis of the take-up spindle in the working position. The rotation drive device is connected to a sensor and a rotation control device via an adjustment circuit, wherein the sensor force <detects a stroke motion of the contact roller, and the rotation drive device sets a target position and an actual position of the contact roller. The position of the contact roller is controlled by the sensor in the adjustment circuit in accordance with the deviation so that the position of the contact roller is maintained substantially unchanged during the winding process. That, the winding apparatus is disclosed. In other words, the yarn switching and winding machine described in Japanese Patent Application Laid-Open No. 2-2776771 detects the position of the contact roller with the sensor while winding the yarn, and changes the position of the contact roller. To prevent the bobbin holder from moving away from the contact roller, the turret table is rotated.

Japanese Patent Application Laid-Open No. 8-290870 discloses a method of adjusting the bobbin position of a winding machine in which the bobbin position is adjusted as the winding diameter of the winding package increases. And a bobbin position adjusting method for the winding machine characterized by adjusting the bobbin position based on the winding diameter value, rotation detecting means for detecting the bobbin rotation speed, and a bobbin holder along a predetermined path. A bobbin moving means for moving the bobbin; and a calculation control means for calculating a winding diameter from the bobbin rotation number detected by the rotation detecting means and appropriately operating the bobbin moving means based on the calculated value. A bobbin position adjusting device for a winder is disclosed.

Further, the yarn switching winder described in Japanese Patent Application Laid-Open No. Hei 9-1507782 discloses a product obtained by multiplying the rotation speed of a contact roller during winding by the diameter of a contact roller. And the rotational speed of the bobbin holder to calculate the diameter each time, and rotate the lettuce table in the evening based on the diameter of the package.

In Japanese Patent Application Laid-Open No. 2-2767671, feedback control is performed so that the position of the contact roller does not change. Therefore, during winding, although the contact roller is very small, it always rises and falls. Repeat. For this reason, the contact pressure during winding slightly changes, causing a phenomenon that the yarn is in the middle. Therefore, there is a problem that unwinding becomes worse in the subsequent process.

Further, in this prior art, since the position force of the contact roller is not changed, and after the yarn is switched, the turret is rotated so that the position of the bobbin holder is separated from the contact controller, so that the wound package is wound up. It is configured to move constantly. When automating doffing of a package, the package is removed from the bobbin holder by a doffer (doffing machine). In this prior art, there is a problem that the above-mentioned automation is difficult and the doffer is complicated because the wound package force is constantly moving.

Further, in the winding machine described in Japanese Patent Application Laid-Open No. 8-290870, when switching, The distance that the robot moves from the position before switching to contact with the empty bobbin is large L, so the contactor moves a long distance from the position before switching to the contact position with the empty bobbin, and the time required for switching However, there was a problem that the number of waste threads during switching work increased and the switching success rate decreased.

In Japanese Unexamined Patent Application Publication No. 9-1550782, the number of revolutions of the bobbin holder during winding is detected, and the package diameter during winding is calculated from the number of revolutions of the bobbin holder and the number of revolutions of the contact roller. Next, the rotation position of the evening lettable is calculated from the calculated package diameter, and the turret table is rotated to a predetermined position. Therefore, the rotation speed of the bobbin holder during winding may vary due to fluctuations in the rotation speed occurring during the winding of the yarn, and the calculation of the package diameter may be barracks. There was a problem that the thread during winding was cut off due to unstable contact pressure. According to the present invention, it is difficult to automate the yarn switching winder described in the above-mentioned prior art document, and it is difficult to complicate the doffer. It is an object of the present invention to provide a yarn switching winder and a winding method that solve the problem of a reduction in the rate. Disclosure of the invention

According to the present invention, a bobbin is mounted on two rotatable bobbin holders protruding from a turret table rotatably mounted on a machine frame, and a con- troller is mounted on a yarn wound on the bobbin. When the amount of the yarn wound on one bobbin holder reaches a predetermined amount, the yarn is sequentially switched to the other bobbin holder, and the package wound on the one bobbin holder is wound. A yarn switching winder in which the evening lettet is rotated so that the distance between the bobbin holder on the winding side and the contact roller increases as the weight increases.

From the start of the winding of the thread to the arrival of a predetermined initial condition set in advance, the turret table is fixed at a predetermined position and the contact controller is wound from the position at the start of winding to the position at which the package is thickened. the moved by winding the yarn, then, as the contact roller from after reaching the predetermined initial condition to reach the yarn before switching winding diameter (D _ma __) is returned to the winding-start position The bobbin holder force The above object is achieved by a winding method of a yarn switching winder, characterized in that the evening lettable is controlled to rotate in a direction to withdraw from a contact roller.

In the present invention, the initial condition may be a time from the start of the winding of the yarn until a predetermined winding time T elapses, or a predetermined winding diameter (D ^) of the winding package. Furthermore, the switching winder may include a doffing means, and the initial condition may be transmission of a doffing completion signal from the doffing means.

According to the present invention, the time required for the winding package to reach a predetermined winding diameter (eg, a predetermined winding amount such as D), the time until the predetermined winding time T elapses from the start of the yarn winding, and the doffing Since the turret table is fixed until a predetermined initial condition is satisfied, such as until the doffing completion signal is transmitted from the means, it is easy to automatically take out a full package and insert an empty bobbin.

Further, according to the present invention, before Taretsu bets start of switching, since the contactor controller to a position L _s empty bobbin and contactors Toro one La contacts are restored, and an empty bobbin contactor controller when switching the bobbin There is no need for waiting time to return to the contact state, the rotation speed of the turret table can be increased, and the switching time can be reduced, so that the switching success rate can be improved and the amount of waste yarns can be reduced.

Further, in the present invention, as set forth in claim 5, two bobbin holders rotatably projecting from the evening table rotatably mounted on the machine frame are provided with pobins, The contact roller is pressed against the yarn wound on the upper side to wind the yarn, and when the yarn wound on one bobbin holder reaches a predetermined amount, the yarn is sequentially switched to the other bobbin holder. A thread configured to rotate the evening table so that the distance between the bobbin holder on the winding side and the contact opening increases with the thickness of the package wound on the one bobbin holder. In the change-over winder of Article,

From the start of the winding of the yarn ( _DQ ) to the predetermined winding diameter (D ^), the turret table is fixed at a predetermined position, and the package is wound from the starting position of the contact roller. (It is moved to a position where it is wound up in D, and the yarn is wound up, and while the contact roller is retracted with respect to the bobbin holder, a factor relating to the winding up of the package is determined. After the package winding diameter reaches (D ^) and the maximum winding diameter (D) of the package is reached, the bobbin holder is adjusted based on the learned winding thickening factor.

ΙΠ Λ

The above-mentioned problem is solved by a method of winding and switching a yarn, characterized in that the evening lettable is rotated in a direction to retract from the contact roller.

In the present invention, the term "factor relating to winding thickness" refers to winding time, diameter of empty bobbin, package width, thread thickness, winding speed, and the like.

According to the present invention, a bobbin is mounted on two bobbin holders circulatingly mounted on a machine frame, and a contact roller is pressed against a yarn wound on the bobbin to wind up the yarn. When the amount of yarn wound on the bobbin holder reaches a predetermined amount, the bobbin holder is sequentially switched to the other bobbin holder, and is wound on the one bobbin holder. The applicant of the present invention is disclosed in, for example, Japanese Patent Application Laid-Open No. Hei 6-91554, in which the bobbin holder is moved so that the interval between the contact opening and the contact opening is increased. It has two bobbin holders as proposed, and a contact roller is pressed against the bobbin on one bobbin holder, and the other bobbin holder is traversed by the traverse device. When the amount of the yarn wound on the bobbin of the bobbin reaches a predetermined amount, the yarn is sequentially switched to the bobbin of the other bobbin holder. A slider guide means and a second slide guide means for enclosing the bobbin holder; and a slider for reciprocating along the first and second slider idea means. Is carried on a carrier, and the carrier can be transferred to the sliders of the first and second slider guide means, and is also applicable to an automatic switching winder.

In this case, as described in claim 6, in the present invention, the bobbin is mounted on two bobbin holders circulatingly mounted on the machine frame, and the contact roller is pressed against the yarn wound on the bobbin. When the amount of the yarn wound on one bobbin holder reaches a predetermined amount, the yarn is sequentially switched to the other bobbin holder, and the yarn is wound on the one bobbin holder. So that the distance between the bobbin holder on the winding side and the contact roller is increased. In the yarn changeover winder that moves the rudder,

Winding the yarn starting between (D.) of a predetermined winding diameter (D is located packages from the contactor controller the winding start is fixed at least one bobbin holder to a predetermined position winding diameter _{(D l} The contactor is moved to a position where the winding becomes thicker to take up the yarn, and while the contact roller is retracted with respect to the bobbin holder, a factor relating to the winding of the package is learned, and the winding diameter of the package reaches (D). maximum winding diameter of the package from the following that (D _m. _v) between the feature and be Ruitojo that as Bobinho holder is moved in a direction of retracting from the contactor controller based on factors relating to fat winding and the learned Switching winding method.

Preferably, the above-mentioned learned factors relating to thickening are determined by the package winding diameter from the beginning.

(The time until it reaches the DJ, the elapsed winding time and the position of the bobbin holder are determined based on the above time, and the bobbin holder is rotated so as to rotate the turret table or move the bobbin holder in a direction to retract from the contact roller. It is preferred that

Further, after the winding diameter of the package reaches (D ^) and during the maximum winding diameter (Ό) of the winding machine, the bobbin holder is moved in accordance with the learned factor concerning the winding thickness.

IH X

When rotating the turret table in the direction to retract from the contact roller, the contactor force is used, for example, from "the winding diameter of the package (the position where the winding becomes thick at D ^)" to "the position where the contact roller starts winding". The effect is achieved by moving fast.

According to a ninth aspect of the present invention, there is provided the yarn switching winder for implementing the switching winding method according to the present invention, which is rotatably protruded from a turret table rotatably mounted on a machine frame. When a bobbin is mounted on the two bobbin holders, a contact roller is pressed against the yarn wound on the bobbin to wind the yarn, and when the amount of yarn wound on one bobbin holder reaches a predetermined amount, Switching to the other bobbin holder is successively performed, and the distance between the bobbin holder on the winding side and the contact roller is increased according to the thickness of the package wound on the one bobbin holder. In a yarn change-over winder that rotates the needle,

Setting means for setting predetermined initial conditions; start of winding of the yarn of the yarn switching winder Detecting means for detecting a state from the sensor, comparing means for comparing the state detected by the detecting means with the initial condition set by the setting means, and control for controlling rotation of the tablet table and movement of the contact roller. The control means fixes the evening lett table at a predetermined position from the start of the winding of the yarn until the comparison means determines that the predetermined initial condition has been reached, and The contact roller is moved from the winding start position to the position where the package is thickened to wind up the yarn.Then, after the comparison means determines that the predetermined initial condition has been reached, the winding before the yarn switching is performed. By the time the contact roller reaches the diameter (D _m ),

ΙΠ Λ

The turret table may be controlled so as to rotate the turret table in a direction in which the bobbin holder retracts from the contact roller so as to return.

Further, as described in claim 10, the bobbin is mounted on two bobbin holders which are rotatably mounted on the evening lettet and rotatably mounted on the machine frame, and are wound on the bobbin. The contact roller is pressed against the yarn to be wound, and the yarn is wound up. When the amount of yarn wound up on one bobbin holder reaches a predetermined amount, the yarn is sequentially switched to the other bobbin holder. A thread switching winding in which the turret table is rotated so that the interval between the bobbin holder on the winding side and the contact roller increases with the thickness of the package wound on the bobbin holder. In the machine,

Setting means for setting a predetermined initial winding time from the start of winding of the yarn, switching of the yarn, detecting means for detecting the winding time of the yarn from the start of winding of the yarn, detection by the detecting means A comparison means for comparing the winding time with a predetermined initial winding time set by the setting means; and a control means for controlling the rotation of the evening lettable and the movement of the contact roller. The means fixes the turret table at a predetermined position and starts winding the contact roller from the start of the winding of the yarn until the comparison means determines that the predetermined initial winding time has been reached. From the position to the position where the package is thickened to wind the yarn. Then, after the comparison means determines that the predetermined initial winding time has been reached, the winding diameter (D) before the yarn switching is performed. reach the _ν) max The contactor controller is the direction in which the bobbin Nhoruda to return to the winding-start position is retracted from the contactor controller Taretsu Tote one table until It is good also as a thread switching winder characterized by controlling so that it may rotate. Further, according to the present invention, a bobbin is mounted on two rotatable bobbin holders projecting from a turret table rotatably mounted on a machine frame, as described in claim 11, and the bobbin is mounted on the bobbin. A contact controller is pressed against the yarn to be wound to wind up the yarn, and when the yarn to be wound to one bobbin holder reaches a predetermined amount, the yarn is sequentially switched to the other bobbin holder. The turret table is rotated so that the distance between the bobbin holder on the winding side and the contact roller is increased in accordance with the thickness of the package wound on the one bobbin holder; In a yarn switching winder including a doffing means for doffing a thick package after rotation of the table,

When the doffing means doffs the thick package, the yarn switching and take-up device controls the transmitting means for transmitting a doffing completion signal, and the rotation of the tablet table and the movement of the contact roller. From the beginning of the winding of the yarn until the transmitting means doffs the thickened package by the doffing means and transmits a doffing completion signal. Fixing the turret table at a predetermined position and moving the contact roller from a winding start position to a position at which the package is thickened to wind the yarn; and then, the comparing means reaches the predetermined initial condition. From when it is determined that the thread has reached the winding diameter (D) before thread switching,

A bobbin holder for rotating the turret table in a direction in which the bobbin holder is retracted from the contact roller so that the evening roller returns to a winding start position. It may be a machine.

According to the present invention, a bobbin is mounted on two bobbin holders rotatably projecting from a turret table rotatably mounted on a machine frame, and the bobbin is mounted on the bobbin. The contact roller is pressed against the wound yarn to wind the yarn, and when the amount of the yarn wound to one bobbin holder reaches a predetermined amount, the yarn is sequentially switched to the other bobbin holder. Of the yarn, wherein the turret table is rotated so that the distance between the bobbin holder on the winding side and the contact roller is increased in accordance with the thickness of the package wound on the bobbin holder. In the switching winder, Setting means for setting a predetermined initial package winding diameter; detecting means for detecting a winding diameter of a package formed on a bobbin; and setting of the package winding diameter detected by the detecting means and the setting means. It comprises a comparison means for comparing with a predetermined initial package winding diameter, and a control means for controlling the rotation of the turret table and the movement of the contactor. winding diameter between (D _Q) reaches a predetermined winding diameter (D, said co down evening package said click Toro one La from the winding start position while fixing the data one column Tote one table in a predetermined position The yarn is wound up by moving to a position where it is wound to a predetermined winding diameter (D ^). Then, after the winding diameter of the package reaches the predetermined winding diameter (D), the winding diameter before the yarn switching ( D)

A bobbin holder configured to rotate the turret table in a direction in which the bobbin holder is retracted from the contact roller so that the contact roller returns to a winding start position. Machine.

In this case, according to the present invention, a bobbin is mounted on two bobbin holders which are rotatably mounted on a rotary table and rotatably mounted on a machine frame as described in claim 13. The contact roller is pressed against the yarn wound on the upper side to wind the yarn, and when the amount of the yarn wound on one bobbin holder reaches a predetermined amount, the yarn is sequentially switched to the other bobbin holder. A thread changeover winding in which the evening lett table is rotated so that an interval between the bobbin holder on the winding side and the contact roller increases in accordance with the thickness of the package wound on the bobbin holder. On the machine,

Setting means for setting a predetermined initial package winding diameter; detecting means for detecting a winding diameter of a package formed on the bobbin; and a package winding diameter detected by the detecting means and a predetermined value set by the setting means. It comprises a comparing means for comparing the initial package winding diameter and a control means for controlling the rotation of the table and the movement of the contactor. The control means comprises a winding start of the yarn. During the time from the diameter ( _DQ ) to the predetermined winding diameter (D ^), the evening lettable is fixed at a predetermined position, and the winding diameter of the package from the position where the contact roller starts to be wound is the predetermined diameter. The yarn is wound up by moving to a position where it is wound up to the winding diameter (D ^), and during that time, the contact roller force learns the speed of the winding up of the package while retracting to the bobbin holder, Between the subsequent winding diameter of the package reaches a predetermined winding diameter (D ^ until the maximum winding diameter before switching yarn (D _m. _V) based on the speed of the fat winding and the learning than max

The subsequent winding speed is calculated, and from the position of the contact roller at the time of contact with the package having the predetermined winding diameter (D p), the contact roller at the time of contact with the package at the start of winding of the yarn (D _Q ) is contacted. Wherein the bobbin holder rotates the turret table in a direction to retreat from the contact roller so that the contact roller returns to a position. In the present invention, a computer is used as control means, and the control means controls the target table and the contact roller as described in each claim. As described in Claims 14 and 15, as a device for performing the switching winding method, the apparatus can be circulated to a night table or a frame rotatably mounted on the machine frame. The bobbin is mounted on the two bobbin holders that are rotatably protruded from the two bobbin holders mounted on the bobbin, and the contactor is pressed against the yarn wound on the bobbin to wind the yarn. When the amount of the yarn wound on the bobbin holder reaches a predetermined amount, the bobbin on the self-winding side is sequentially switched to the other bobbin holder according to the thickness of the package wound on the bobbin holder. In the thread change-over winder in which the evening lettable is rotated or the bobbin holder is moved so as to increase the distance between the contact holder and the contact roller,

Setting means for setting a predetermined initial package winding diameter, detecting means for detecting a factor relating to the thickness of the package formed on the bobbin, and a package diameter based on the factor relating to the thickness detected by the detecting means. Means for calculating a package winding diameter to be calculated, comparing means for comparing the package winding diameter calculated by the package winding diameter calculating means with a predetermined initial package winding diameter set by the setting means, and the tablet table. Control means for controlling the rotation of the contact roller and the movement of the contact roller, and the control means controls the rotation of the turret table or the tape while the yarn reaches a predetermined winding diameter ( _DQ ) from a winding start winding diameter ( _DQ ). The bobbin holder is fixed at a predetermined position and the contact roller is wound from the position at which the winding is started to the position at which the winding diameter of the package is increased to the predetermined winding diameter (D ^). Winding the yarn to the moved, during which the contact roller force Learning the factors relating to the winding of the package while retracting to the bobbin holder,

Between subsequent winding diameter of the package reaches a predetermined winding diameter _(D until the maximum winding diameter before switching yarn (D _MQY) is thickening winding subsequent to have groups Dzu the factor for fat winding and the learned From the position of the contact roller at the time of contact with the package having the predetermined winding diameter (D ^) to the position of the contact roller at the time of contact with the package at the start of winding ( _DQ ) of the yarn. A yarn switching winder is provided, wherein the bobbin holder rotates the turret table or moves the bobbin holder in a direction in which the bobbin holder retreats from the contact roller so that the contact roller returns. BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a front view of a switching winder according to a first embodiment of the present invention, and (a) to (e) show a time sequence of a winding procedure in the switching winder of the present embodiment. I have. FIG. 2 is a time chart showing the relationship between the evening lettable and the movement of the contact roller in the embodiment shown in FIG. FIGS. 3 (a) to 3 (e) are front views showing the switching order of the second embodiment of the present invention. FIG. 4 is a time chart showing the relationship between the elapsed winding time and the displacement of the contact roller and the rotation angle of the tablet table in the second embodiment of the present invention. FIG. 5 is data stored in a storage device of a computer showing the relationship between the elapsed time from the point S in FIG. 4 and the rotation angle of the evening lettuce tape. FIG. 6 shows data stored in the storage device of the combination after calculating the relationship between the actual elapsed time and the rotation angle of the evening table. FIG. 7 is a front view of a switching winder that implements still another embodiment of the present invention. BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, the present invention will be described in detail with reference to the drawings illustrating a first embodiment of the present invention in which a predetermined winding diameter (D) of a winding package is selected as an initial condition. FIG. 1 shows one embodiment of the present invention. 1 (a) to 1 (e) show a time sequence of a winding procedure in the switching winder according to the present embodiment. One frame is mounted on the base 9. A turret table 2 is mounted on the machine frame 1 so as to be rotatable about a horizontal axis, and the turret table 2 is rotated by a turret table rotation motor (not shown).

On the turret table 2, two bobbin holders 3, 4 are rotatably protruded, and a plurality of bobbins 5, 6 are mounted on the bobbin holders 3, 4, respectively. The bobbin holders 3 and 4 are each rotationally driven by a bobbin holder rotation motor (not shown).

In FIG. 1, a frame 10 protrudes from the machine frame 1 at the upper left of the evening lettuce table 2, and the slide frame 11 is attached to the frame 10 via a support member 12. Are supported so that they can slide. The support member 12 includes a slide bearing composed of a housing 14 and a slide shaft 13 fixed near the center of the slide frame 11 in the vertical direction. A contact controller 7 is rotatably supported by the slide frame 11. Further, a traverse device 8 for traversing the yarn in a direction perpendicular to the paper surface of FIG. 1 is provided on the slide frame 11 at a position above the contact controller 7.

In the embodiment shown in FIG. 1, the contact roller 7 is constantly pressed against the bobbin 6 attached to the bobbin holder 4, and the rotational speed of the contact controller 7 is detected. The rotation speed of the motor for rotating the bobbin holder 4 that drives the pobbin holder 4 is controlled by a computer (not shown). Incidentally, Combi Yuta (control means) includes a setting means for setting a predetermined reel diameter 0 _1, it is possible to set a predetermined reel diameter from the start the winding of the yarn.

Between the slide frame 11 supporting the contactor 7 and the frame 10 attached to the machine frame, an operation transformer (not shown) of a known type is mounted. The operating transformer is engaged with the slide frame 11 and the frame 10 to detect the relative position of the contactor 7 with respect to the frame 10 and to contact the computer during the winding of the thread to the computer. Transmit the position of 7. Further, the operating transformer of the present embodiment is a means for detecting the winding diameter of the bobbin formed on the bobbin mounted on the bobbin holder. Furthermore, the computer or the winding diameter of the (control means) package temporary has been detected by a differential transformer (detection knowledge means) therein has reached a predetermined initial winding diameter D ₁ It includes a comparing means for comparing whether or not the judgment is made.

Next, the winding procedure of this embodiment will be described with reference to the drawings. Fig. 1 (a) shows the state when the yarn is started to be wound. At the start of winding of the yarn, the yarn is traversed by the traverse device 8 while the turret table 2 is fixed (that is, the rotation is stopped), and the traversed yarn is placed on the bobbin 6. To form a package. The bobbin 6 is mounted on the bobbin holder 4. The thread is printed on the contact roller 7, and then wound on the bobbin 6 pressed against the contact controller 7. Vertical distance between the rotation center and the Taretsu preparative center of rotation of the table 2 of the contact b one La 7 L _e is input to the computer as described above.

The winding of the yarn is continued from the above state. At this time, (see winding start - predetermined winding diameter 0 ₁₎ As shown in FIG. 2, Tare' DOO table 2 is still fixed state (rotation stopped state), a bobbin yarn is attached to the bobbin holder 4 The contact roller 7 is lifted along the slide bearing (consisting of the housing 14 and the slide shaft 13 as described above) in accordance with the thickness of the package P. At this time, the comparing means compares whether or not the winding diameter of the package detected by the operation transformer (detecting means) has reached a predetermined initial winding diameter C. Until the comparing means determines that the package has reached the predetermined package diameter DJ, the contact roller 7 is raised in the direction A to a position near the rising end of the slide shaft 13. When the contact roller 7 starts to rise, the relationship between the movement distance of the contact roller 7 from the start position of the winding of the yarn and the elapsed time from the start of the winding of the yarn is determined by the operation transformer described above. (Means for detecting the bobbin winding diameter) and input to the computer.

The measurement of the relationship between the time from the start of winding of the thread and the amount of movement of the contact roller ends once the package has been moved by a predetermined amount to the position corresponding to the contactor package diameter of 0 mm due to thickening of the package. . This state is shown in FIG. 1 (b). At this time, the vertical distance between the rotation center of the contactor 7 and the rotation center of the turret table 2 is as follows.

Next, the time measured as described above (hereinafter referred to as “the measured time”) and the movement amount measured as described above (hereinafter referred to as “the measured movement amount”). Using this relationship, the next winding up to the preset complete winding time. The movement position of the contactor 7 with respect to the package is calculated (predicted) by the computer described above.

In this embodiment,

"Preset winding time"-"Time of self-measurement"

The “measured movement amount” is calculated, and the relationship between the elapsed time after the package diameter reaches and the position of the contact roller is determined (predicted) by calculation in the computer.

Next, in order to make the actual position of the contact roller coincide with the position (reference value) of the contact roller determined in the computer with respect to the lapse of time after the package D in this way, the computer described above is used. The turret table 2 is gradually rotated in the direction C as shown in FIG. By repeating this operation, the contact roller 7 gradually descends in the B direction.

As a result, (see winding diameter 0 ₁ End winding) as shown in FIG. 2, both lowering speed of the rotation speed and the contact roller 7 of Taretsu Totepu le 2 are controlled, FIG. 1

From the point when the package diameter shown in (c) is D, the maximum winding diameter D _m shown in Fig. 1 (d). _{During the time up to v}丄 max, the distance L i from the actual center of rotation of the target table 2 to the center of rotation of the contactor 7 is the target table 2 calculated as described above. The distance from the center of rotation of the contact roller 7 to the center of rotation of the contact controller 7 is L _F. Here, the distance L _F is selected to be a distance equal to the value from the center of rotation of Tare' bets table 2 of the winding start to the rotational center of the contour click Toro one la 7.

When the package diameter reaches the winding diameter (D) before thread switching, turret tape max

2 in the direction C (see complete winding to winding start in Fig. 2), and switch the winding of the thread from bobbin 6 mounted on bobbin holder 4 to bobbin 5 mounted on bobbin holder 3 in a known direction. (Refer to Fig. 1 (d) and the complete winding in Fig. 2).

Next, in the same manner as in the above, until the package P wound on the bobbin holder 3 on the winding side is thickened in the same manner as described above, and the position of the contact controller 7 reaches the position shown in FIG. 1 (b). The package P formed on the bobbin holder 4 on the standby side is taken out from the bobbin holder 4 (frozen), and then the empty bobbin is transferred to the bobbin holder 4. Be attached. Hereinafter, the above process is repeated.

In the present embodiment, the movement of the contact roller 7 after the package diameter Di is evenly distributed according to the winding time, but may be equally distributed with respect to the winding diameter.

In the present embodiment, an operating transformer is used as a measuring device for the moving distance of the contact roller 7 and a means for detecting the winding diameter of the bobbin formed on the bobbin mounted on the bobbin holder, but a known transformer such as an encoder is used. A measuring instrument may be used.

In this embodiment, the operating transformer is used to detect the position of the contact roller.However, a detecting device such as a limit switch is attached to the lower and upper positions of the contact roller to detect the position. You may do. In the present embodiment, the bobbin 5, 6 and the contact roller 7 are brought into contact with each other at the beginning of the winding of the yarn, but a small gap is provided between the bobbin holders 3, 4 and the contact roller 7 at the beginning of the winding. It may be wound up.

In the embodiment described above, a predetermined winding diameter of the winding package is used as an initial condition.

(D ^ was selected. However, in the present invention, a predetermined winding diameter of the winding package (D is selected as an initial condition, and a predetermined winding time T It can be the time to elapse or until the doffing completion signal is sent from the doffing means.

Next, a second embodiment of the present invention will be described. FIGS. 3 (a) to 3 (e) are front views for explaining, in chronological order, the switching winding method according to the present invention described in claim 5. FIG. Parts and configurations similar to those in FIG. 1 described above are denoted by the same reference numerals, detailed description thereof will be omitted, and differences will be described below.

The top dead center of the contact roller 7 with respect to the frame 10 (corresponding to the package diameter of the predetermined winding diameter D の間に) is between the frame 11 supporting the contact controller 7 and the frame 10 attached to the machine frame 1. Sensors 16 and 15 are provided to detect the position of the lowermost point (the position where the package diameter corresponds to the beginning of the winding of _DQ ). The sensors 15 and 16 are contact roller position detecting means of the present invention.

Next, the winding procedure of this embodiment will be described with reference to the drawings. Fig. 3 (a) shows the state when the yarn is started to be wound. In the state where the yarn is being wound, the lettuce table 2 is fixed in the evening (ie, the rotation is stopped), and the yarn is traversed by the traverse device 8.

5 one The traversed yarn is wound on the bobbin 6 to form a package. The bobbin 6 is mounted on the bobbin holder 4, and the yarn is printed on the contact roller 7, and then wound up on the bobbin 6 pressed against the contact controller 7. For the vertical distance between the center of rotation of the contact roller 7 and the center of rotation of the target table 2, Le is input to the computer described above.

The winding of the yarn is continued from the above-described winding start state. At this time, the turret table 2 is still in a fixed state (rotation stop state), the yarn is wound on the bobbin 6 mounted on the bobbin holder 4, and as shown in FIG. As shown (refer to the point S where the winding starts to the predetermined winding diameter!), The contact roller 7 is mounted on the slide bearing (consisting of the housing 14 and the slide shaft 13 as described above). Rise along.

In the present embodiment, the turret 2 is stopped and the bobbin holder 4 is also stopped until the winding diameter becomes, so that the bobbin can be easily replaced.

In this embodiment, the winding time is adopted as the winding thickening factor. Package winding diameter! The contact controller 7 rises in the direction A up to a predetermined amount (near the rising end of the slide shaft) up to the point S, which is the time point at which the vehicle moves. When the contact roller starts to rise, the sensor 15 changes from the ON state to the OFF state. When the sensor 15 is turned off, a timer 1 (not shown), which is a part of the winding factor learning means of the present invention, is actuated to measure the time from the start of winding the yarn (FIG. 3 (b)). See). When the package diameter becomes a predetermined amount due to the winding of the yarn, the contact roller 7 reaches the vicinity of the rising end, the sensor 16 is turned on, and the time from the start of winding the yarn and the contact roller The measurement of the relationship between the movement amounts is once completed.

Next, as described above, the moving position of the contact roller in the package to be wound thereafter is calculated from the “measured time and moving amount” and the “preset complete winding time”.

FIG. 4 shows the relationship between the moving position of the contact roller and the rotation angle of the turret table at a predetermined winding speed, a predetermined yarn thickness, and a predetermined winding width. From the relationship shown in FIG. 4, the moving position of the contact roller and the winding package diameter at a predetermined winding speed, a predetermined yarn thickness, and a diameter from the start of winding to D at a predetermined winding width. The 4th max is between the contact roller movement position between 1 and D and the winding elapsed time.

There is the relationship shown in the figure.

The contactor controller in this embodiment of a package winding diameter I later, by the control means, most Shinji diameter before switching the yarn from subsequent winding diameter of the package reaches a predetermined winding diameter (D (D _m. _V) Until the volume reaches the volume learned by the volume expansion factor learning means

ΙΠαΛ

A factor relating to the subsequent winding is calculated based on the factor relating to the weight, and the contact with the package at the start of winding (D _n ) of the yarn from the position of the contact roller at the time of contact with the package having the predetermined winding diameter (D ^) as the bobbin holder so that the contact roller was to the position of the contactor controller when to return rotates the Tare' preparative table in a direction of retracting the contact b one Rakaヽet al, D _m at the contact roller 7 Chikaraku constant speed It is set to descend to the descending end by the winding diameter of _v .

ΙΩ Λ

In addition, as shown in Fig. 5, the package diameter between 0 and

丄 max Data on the relationship between the winding elapsed time τ ₂ and the turret rotation angle at the position of a predetermined contact roller is stored in the computer as a reference pattern.

In the reference pattern, the time is reduced or expanded according to the time measured by winding the yarn.

For example, in the case of the measured time, the full scale of the time axis is t = T ₂ * t ^ ZT ^ in the relationship between τ _{2 of} the reference pattern and the turret rotation angle 0 at the position of the predetermined contact roller. (Figure 6 shows the case where the image is reduced). This is an actual reference pattern in the pattern force winding.

Therefore, after the sensor 16 at the rising end of the contactor is activated, the elapsed time is counted by a timer (not shown), and the turret at the elapsed time tX is obtained from the actual pattern shown in FIG. The rotation angle ΘX is calculated, and the evening table is rotated to a predetermined position by a servo motor that drives the turret table. In the present embodiment, the elapsed time is calculated by rotating the turret table to a predetermined position by calculating the rotation angle θX of the turret every 5 Z100 seconds.

By repeating the above-described operation, as shown in FIG. 3 (c), the turret table 2 is gradually rotated in the C direction, and the contact roller 7 is later moved in the B direction. Descend. As a result, assuming that the distance from the center of the table 2 to the center of the contact roller 7 is L at the start of winding and 1 ^ at full winding during winding, the winding bobbin on the tablet table the evening one column bets immediately before for switching, said Thale Tsu bets distance from the center of the table 2 to the center of the contact b one la 7 1 ^ is equal to the distance L _s of the winding start L _F (L _S = L _F ).

When the package diameter reaches D, the turret table 2 is rotated in the C direction,

ΙΠ Χ

The winding of the yarn is switched from the bobbin 6 mounted on the bobbin holder 4 to the bobbin 5 mounted on the bobbin holder 3 by a known method.

Next, the package wound on the bobbin holder on the winding side becomes thicker, and the package on the copy side is removed from the bobbin holder until the contact roller reaches the position shown in FIG. It is attached well. Hereinafter, the above steps are repeated.

In the present embodiment, the bobbin and the contact roller may be wound at a small gap between the bobbin and the contact roller at the beginning of the winding.

In this embodiment, a turret type winder has been described. However, the present invention proposes a machine proposed by the present applicant in Japanese Patent Application Laid-Open Nos. Hei 6-91454 and Hei 7-33333. The bobbin is mounted on two bobbin holders circulatingly mounted on the frame, the contact roller is pressed against the yarn wound on the bobbin, and the yarn is wound.The amount of yarn wound on one bobbin holder is a predetermined amount. , The bobbin holder is switched to the other bobbin holder, and the bobbin holder is moved so that the distance between the bobbin holder on the winding side and the contact roller increases as the package wound on one bobbin holder becomes thicker. The present invention can also be implemented in a yarn switching winder that performs the above operation.

This embodiment of the present invention will be described below. FIG. 7 is a front view of an embodiment of a yarn switching and winding machine according to the present invention. A machine frame 1 is mounted on a base 9 composed of a pair of channels, and a swing frame 11 is supported by a frame 10 protruding from the machine frame 1 so as to be able to swing up and down around a fulcrum 34, The swing frame 11 carries a contact roller 7. Further, a traverse device 8 protrudes from the machine frame 1 in parallel with the contact roller 7. The traverse device 8 of the present embodiment relates to a cylindrical cam groove. A well-known traverse device using a known traverse device for traversing the yarn with a guide fixed to the combined slider may be used.

In FIG. 7, the rear end of the air cylinder 31 is connected to the frame 10 by a pin 29, and the piston rod of the air cylinder 31 is connected to the swing frame 11 by a pin 30. A predetermined compressed air is supplied to 1 to support the weight of the oscillating frame 11 and the contact roller 7, and to apply a predetermined pressure contact force between the contact roller 7 and the bobbin holder 4 being wound.

A substantially inverted triangular opening 1a is formed on the lower side of the oscillating frame 1 1 of the machine frame 1, and the right side of the opening 1a, which is close to the vertical, is approached to the inside of the machine frame 1. 1 Slider-Guide means 20 is fixedly installed. A shaft 18 extending in the axial direction of the bobbin holders 3 and 4 is supported on the left side of the lower opening 1a of the machine frame 1, and the second slider guide means 17 is swingably supported by the shaft 18. are doing. In FIG. 7, the rear end of the cylinder 19 is connected to the machine frame 1 by a pin 19a, and the piston rod of the cylinder 19 is connected to a second slider guide means 17 by a pin 19b. The second slider guide means 17 can be swung around the axis 18 by the cylinder 19 in the direction of arrow A in FIG.

Further, the slider 13 is slidable up and down along the second slider guide 17, while the slider 14 is slidable up and down along the first slider guide 20.

The bobbin holder 3 is supported by the carrier 15 together with the drive motor, and the bobbin holder 4 is supported by the carrier 16 together with the drive motor.

As described above, the carriers 15 and 16 rotatably support the bobbin holders 3 and 11, and the bobbin holders 3 and 11 further have a drive motor integrally fixed to the carriers 15 and 16. (Not shown). The carriages 15 and 16 connected to the slider 14 are moved by the movement of the slider 14 along the first slider guide means 20 so that the bobbin on the pobin holders 3 and 11 comes into contact with the contact roller 7. From this position, it descends along the first slider guide means 20 and can move to the doffing position. In addition, the carriers 15 and 16 integrally connected to the slider 13 are configured to oscillate around the axis 18 of the second slider guide 17 and the second By moving along the slider guiding means 17, it is possible to move from the above-mentioned doffing position to the standby position near the winding position, and further from the standby position to the winding position.

Sensors 47, 48 for detecting the amount of movement of the oscillating frame 11 having a contact roller 7 are provided on the machine frame 1 (contactor position detecting means of the present invention, and the limiter is shown in FIG. 7). The switch may be used, but other known sensors may be used). When the contact controller moves upward due to the thickening of the package, the winding diameter 0 ₍₎ is detected by the sensor 47, and the winding diameter! When it reaches ェ, sensor 48 detects it. Further, the slider 14 supporting the contact roller 7 and the bobbin holder 4 being wound is moved by the control means of the present invention comprising a computer in accordance with a predetermined program.

In FIG. 7, the bobbin 5 is mounted on the bobbin holder 3 which is standing by at the standby position, is carried by the carrier 15 integrated with the slider 13, and the bobbin 6 is wound on the bobbin holder 4 which winds the package P. Is mounted, and the package P is wound thereon. Each of the bobbin holders 3 and 4 is driven by an electric motor (not shown) mounted on a carrier, and is controlled by a controller (not shown) by a controller (not shown) so that the number of rotations of the contact roller becomes a predetermined rotation during winding of the yarn. Controlled by the method.

After the switching, the bobbin holders 3 and 4 are moved to the package unloading position, and the plate 35 engaging with the bobbins 5 and 12 on which the package P has been wound is moved by the bobbin holder 3 (not shown) at that position. Extrude parallel to 4 and extrude package P. The bobbin holders 3 and 4 are slidable in the axial direction of the bobbin holders 3 and 4 by a cylinder (not shown) when the yarn is switched.

Next, a winding procedure of the present embodiment will be described. In this embodiment, the winding of the yarn is started.

From (D _Q ) to the specified winding diameter (D ^), fix at least one bobbin holder at the specified position and move the contact roller from the starting position to the position where the package is wound to the winding diameter (D ^). While the contact roller retracts with respect to the bobbin holder, it learns the factors related to the thickening of the package. After the package diameter reaches (D), the maximum package diameter ( During D), the bobbin holder is moved in the direction of retreating from the contact roller based on 因子 max based on the factor concerning the learned winding thickness. That is, the bobbin holder 4 is fixed at a fixed position when the yarn is wound at the beginning of winding.

In a state where the movement of the carrier 16 is stopped, the yarn is traversed by the traverse device 8, and the traversed yarn is wound on the bobbin 6. Form package P. The bobbin 6 is mounted on the bobbin holder 4, and the thread is printed on the contact roller 7, and then wound up on the bobbin 6 pressed against the contact roller 7. Rotational center vertical distance between the center of rotation of the bobbin holder 4 of the contactor Toro one La 7 is input to the computer constituting the control means L _s is described.

The winding of the yarn is continued from the above state. At this time, the bobbin holder 4 is still fixed (the movement of the carrier 16 is stopped), the yarn is wound on the bobbin 6 mounted on the bobbin holder 4, and The swing frame 11 carrying the contact roller 7 swings around the fulcrum 34 and moves up. When the contactor starts to ascend, the sensor 47 activates a timer (not shown). The contact roller 7 rises to a predetermined amount corresponding to a package diameter of 0 mm. When the contact controller reaches the vicinity of the rising end due to the winding of the yarn, the sensor 48 measures the time from the start of winding the yarn.

Next, the contact roller 7 is moved to a predetermined amount (package) by thickening the package P.

(To the position corresponding to the diameter of 1 ^) When measurement is completed, the measurement of the relationship between the time from the start of winding the yarn and the amount of movement of the contact roller ends once.

Next, in the same manner as in the above-described embodiment, the control means sets the movement position of the contact roller 7 in the package P to be subsequently wound from the “measured time and movement amount” and the “preset complete winding time”. Is calculated.

Under the winding condition, the elapsed winding time T between the package diameter 0 and D

1 max L

Data relating to the position of the carrier at the position of the contact roller is stored in the computer as a reference pattern. The reference pattern is configured such that the time is reduced or expanded according to the time t measured by winding the yarn.

Therefore, after the sensor 48 detects that the contact roller force <the rising end, the elapsed time is counted by a timer (not shown), and the position of the bobbin holder 11 at the elapsed time tX is determined from the actual pattern diagram. Indexed bobbin holder 4 The bobbin holder 4 is moved together with the carrier 16 to a predetermined position along the first slider guide means 20 by a servo motor (not shown) for driving the carrier 16 carried by the bobbin holder.

By repeating the above, the carrier 16 gradually descends downward, and the bobbin holder 4 also descends.

As a result, immediately before switching the bobbin holder 4 to the bobbin holder 3, the position of the contact roller 7 that comes into contact with the package P formed on the bobbin 4 mounted on the bobbin holder 4 being wound is changed to the position of the bobbin holder 4 at the beginning of winding. It is almost equal to the position where the contact roller 7 in contact with the bobbin 6 was located.

When the package diameter reaches D _mav , the second slider guide means 17 is swung in the Α direction around axis 18 to switch the thread from bobbin 6 mounted on bobbin holder 4 to bobbin 5 mounted on bobbin holder 3. In this way, the package P to be wound on the bobbin 5 of the bobbin holder 3 on the winding side is thickened, the bobbin holder 4 on the standby side is pulled out of the bobbin holder 4, and the empty bobbin is newly removed. Attached. Hereinafter, the above steps are repeated. Industrial applicability

According to the present invention, when the winding package has a predetermined winding diameter (a predetermined winding amount such as D), the force, the time until the predetermined winding time T elapses from the start of the winding of the yarn, or the ball The turret table is fixed until the predetermined initial conditions are met, such as until the doffing completion signal is sent from the fryer, so that it is easy to automatically take out a full package and insert an empty bobbin. .

Further, according to the present invention, before Taretsu bets start of switching, since the position of the L _s of the empty bobbin and the contactor Toro one La are in contact with contactor Toro one la have reverted, contactor controller when switching the bobbin is empty There is no need to wait for the bobbin to come back into contact, the turret table rotation speed can be increased, and the switching time can be shortened, improving the success rate of switching and reducing waste.

According to the present invention, a factor relating to the winding thickness is learned during a predetermined winding diameter from the start of winding, and in subsequent winding, the evening let table is set at a predetermined angle every predetermined (small) winding elapsed time. The turret table rotates smoothly without being affected by fluctuations in the rotation of the bobbin holder or hunting due to feedback. As a result, the contact pressure between the contact roller and the package is stabilized, so that breakage of the yarn during winding can be prevented and yarn quality can be improved.

Claims

The scope of the claims

1. Attach a bobbin to two rotatable bobbin holders that protrude from a rotatable set table that is rotatably mounted on the machine frame, and press the contact roller against the thread wound on the bobbin. When the yarn wound on one bobbin holder reaches a predetermined amount, the yarn is sequentially switched to the other bobbin holder and the package wound on the one bobbin holder is thickened. Accordingly, in the yarn switching winder in which the turret table is rotated so that the distance between the bobbin holder on the winding side and the contact roller is increased,

From the start of the winding of the yarn until the predetermined initial condition set in advance is reached, the turret table is fixed at a predetermined position, and the contact roller is moved from the position at the start of winding to a position at which the package is thickened. Te winding the yarn, then, the predetermined yarn from after reaching the initial conditions before switching winding diameter (D _m. _v) is reached or max

And controlling the bobbin holder to rotate the turret table in a direction to retract from the contact roller so that the contact roller returns to the winding start position. The winding method of the switching winder.

2. The winding method for a yarn switching winder according to claim 1, wherein the initial condition is a time from a start of the winding of the yarn until a predetermined winding time T elapses.

3. The yarn switching according to claim 1, wherein the switching winder includes doffing means, and the initial condition is transmission of a doffing completion signal from the doffing means. Winding method of the winder.

4. The winding method for a yarn switching winder according to claim 1, wherein the initial condition is a predetermined winding diameter (D J) of the winding package.

5. Attach the bobbin to two rotatable bobbin holders protruding from the evening lettable, which is rotatably mounted on the machine frame, and contact the bobbin on the bobbin. When the yarn wound on one bobbin holder reaches a predetermined amount, the yarn is wound on the other bobbin holder, and is sequentially switched to the other bobbin holder, and the package wound on the one bobbin holder is wound. In the yarn switching winder in which the lettet tape is rotated so that the interval between the bobbin holder on the winding side and the contact roller increases as the weight increases,

From the beginning of the winding of the yarn ( _DQ ) to the predetermined winding diameter (D ^), the turret table is fixed at a predetermined position, and the package is wound from the starting position of the contact roller. It is moved to the position where the winding becomes thicker in D ^, and the yarn is wound. While the contact roller is retracted with respect to the bobbin holder, a factor concerning the winding of the package is learned, and the winding diameter of the package reaches (D ^). The maximum winding diameter of the package since

During the period (D), the bobbin holder rotates the turret table in a direction to retreat from the contact controller based on the learned factor relating to the thickening of the yarn, and the yarn switching winding is characterized in that: How to take.

6. Attach bobbins to the two bobbin holders circulatingly mounted on the machine frame, press the contact roller against the yarn wound on the bobbin, wind the yarn, and wind it on one bobbin holder When the yarn reaches a predetermined amount, the thread is sequentially switched to the other bobbin holder, and is wound around the one bobbin holder. In the yarn switching winder in which the bobbin holder is moved so that the distance between the bobbin holder on the winding side and the contact opening is increased in accordance with the thickness of the package,

From the winding start (D _Q ) of the yarn to a predetermined winding diameter (D), at least one bobbin holder is fixed at a predetermined position and the package is wound from the winding start position of the contact roller to the winding diameter (DJ The contact roller is moved to the winding position to take up the yarn, and while the contact roller retracts with respect to the bobbin holder, a factor relating to the winding of the package is learned, and the winding diameter of the package reaches (D ^). maximum winding diameter of the package from the following (D _M. _v) during the yarn characterized in that so as to move in a direction Bobinho holder is retracted from the contactor controller based on factors relating to fat winding and the learned Switching winding method.

7. The time required for the learned winding factor to reach the package winding diameter (D ^) from the beginning of winding is determined. The elapsed winding time and the position of the bobbin holder are determined based on the time. 7. The method according to claim 5, wherein the turret is rotated or the bobbin holder is moved in a direction in which the bobbin holder is retracted from the contact roller.

8. After the winding diameter of the package reaches (D ^) and after the maximum winding diameter (D) of the package, the bobbin holder is set to the correct position based on the learned factors concerning the thickening.

Πΐ Λ

When rotating the turret table or moving the bobbin holder in the direction to withdraw from the contact roller, the contact roller has a large winding diameter (from the position of D ^ at the beginning of the winding of the contact roller). 8. The method according to claim 5, 6 or 7, wherein the yarn is moved to a position at a substantially constant speed.

9. Attach the bobbin to the two rotatable bobbin holders protruding from the turret table rotatably mounted on the machine frame, and press the contact roller against the yarn wound on the bobbin to press the yarn. When the yarn wound on one bobbin holder reaches a predetermined amount, the yarn is sequentially switched to the other bobbin holder, and the yarn is wound according to the thickness of the package wound on the one bobbin holder. In a yarn switching winder in which the turret table is rotated so that the distance between the bobbin holder on the winding side and the contact roller is increased.

Setting means for setting predetermined initial conditions; detecting means for detecting a state of the yarn switching winder from the start of winding of the yarn; and a state detected by the detecting means and an initial condition set by the setting means. And control means for controlling the rotation of the tablet table and the movement of the contact roller, wherein the control means makes the comparison means meet the predetermined initial conditions from the beginning of the winding of the yarn. Until it is determined that the tape has been reached, the turret table is fixed at a predetermined position, and the contact roller is moved from the start position of winding to the position where the package is thickened to wind the yarn. In the above, the contact roller is moved to a winding start position after the comparison means determines that the predetermined initial condition has been reached and before the winding diameter ( _Dm .) Before the thread change is reached. A yarn switching winder, wherein the bobbin holder is controlled to rotate in the direction in which the bobbin holder is retracted from the contact controller so as to return.

1 0. Attach the bobbin to two rotatable bobbin holders that protrude from the rotatable table, which is rotatably mounted on the machine frame, and press the contactor onto the yarn wound on the bobbin. When the amount of the yarn wound on one bobbin holder reaches a predetermined amount, the yarn is sequentially switched to the other bobbin holder, and the yarn is wound on the one bobbin holder. So that the distance between the bobbin holder on the winding side and the contact roller is increased.

—In a yarn switching winder that rotates a bull,

Setting means for setting a predetermined initial winding time from the start of winding of the yarn, switching of the yarn, detecting means for detecting the winding time of the yarn from the start of winding of the yarn, detection by the detecting means Comparing means for comparing the winding time with a predetermined initial winding time set by the setting means, and control means for controlling the rotation of the tablet table and the movement of the contact roller, the control means comprising: From the start of the winding of the yarn to the time when the comparison means determines that the predetermined initial winding time has been reached, the turret table is fixed at a predetermined position, and the winding of the contact roller is started. From the position to the position where the package is thickened, and winds the yarn. Then, after the comparing means determines that the predetermined initial winding time has been reached, the winding diameter (D) before the yarn switching is performed. until max is reached And controlling the bobbin holder to rotate the evening lett table in a direction in which the bobbin holder is retracted from the contact roller so that the contact roller returns to the winding start position. Taker.

1 1. Attach bobbins to two rotatable bobbin holders protruding from a turret table rotatably mounted on the machine frame, and press the contact roller against the yarn wound on the bobbin. When the yarn wound on one bobbin holder reaches a predetermined amount, the yarn is sequentially switched to the other bobbin holder, and the yarn is wound in accordance with the thickness of the package wound on the one bobbin holder. Take-up side bo The yarn switching table including a doffing means for doffing a thick package after the rotation of the turret table so that the distance between the bin holder and the contact roller is increased. In taking machine,

The yarn switching and winding machine includes: a transmitting means for transmitting a doffing completion signal when the doffing means doffs the thick package; and a control means for controlling rotation of the turret table and movement of the contact roller. The control means includes: the turret from the beginning of the winding of the yarn until the transmitting means doffs the thickened package by the doffing means and transmits a doffing completion signal. The contact table is fixed at a predetermined position, and the contact roller is moved from a winding start position to a position at which the package force is wound to wind the yarn. From the time when the thread diameter reaches the winding diameter (D.) before the thread change,

Switching control of the bobbin holder so that the bobbin holder is retracted from the contact roller so that the tactile roller returns to a winding start position. Machine.

1 2. Attach the bobbin to two rotatable bobbin holders protruding from the turret table rotatably mounted on the machine frame, and press the contact roller against the yarn wound on the bobbin. When the amount of the yarn wound on one bobbin holder reaches a predetermined amount, the yarn is sequentially switched to the other bobbin holder, and the yarn is wound according to the thickness of the package wound on the one bobbin holder. In the yarn switching winder in which the turret table is rotated so that a distance between the bobbin holder on the winding side and the contact roller is increased,

Predetermined initial, Setting means for setting the package winding diameter, detecting means formed on the bobbin, detecting means for detecting the winding diameter of the package, package winding diameter detected by the detecting means, and a predetermined initial diameter set by the setting means. And a control means for controlling the rotation of the turret table and the movement of the contact roller. The control means comprises a winding start diameter (D) of the yarn. _Q ) from the start of winding the contact roller to the predetermined winding diameter (D ^) while the evening lettet is fixed at a predetermined position while the package reaches the predetermined winding diameter (D ^). Makita And then take up the yarn until the package winding diameter reaches the predetermined winding diameter (D ^) and then reaches the winding diameter (D) before yarn switching.

The bobbin holder is configured to rotate the turret table in a direction to retract from the contact roller so that the contact roller returns to a winding start position.

1 3. Attach the bobbin to two rotatable bobbin holders that protrude from the evening lett table that is rotatably mounted on the machine frame, and press the contact roller against the yarn wound on the bobbin. When the yarn wound on one bobbin holder reaches a predetermined amount, the yarn is sequentially switched to the other bobbin holder, and the yarn is wound on the one bobbin holder. A yarn switching winder in which the turret table is rotated so that the distance between the bobbin holder on the winding side and the contact roller increases as the thickness of the package increases.

Setting means for setting a predetermined initial package winding diameter; detecting means for detecting a winding diameter of a package formed on the bobbin; a package winding diameter detected by the detecting means and a predetermined value set by the setting means. It comprises a comparison means for comparing with the initial package winding diameter and a control means for controlling the rotation of the turret table and the movement of the contact roller, and the control means comprises a winding start winding diameter (D _Q ), a predetermined winding diameter (D ^) is reached, the overnight table is fixed at a predetermined position, and the winding diameter of the package from the start position of winding the contactor is the predetermined winding diameter. Diameter (D is moved to the position where it is wound up and winds up the yarn. During that time, the contact roller is learned about the speed of winding up the package while retracting to the bobbin holder, and the winding diameter of the package is learned. The winding thickening rate after more than between the subsequent reaches the predetermined winding diameter (D ^ until the maximum winding diameter before switching yarn (D _m. _V) is based on the speed of the fat winding and the learned After the calculation, the predetermined winding diameter (from the position of the contact roller at the time of contact with the package of D to the start of winding of the yarn (from the position of the contact roller at the time of contact with the package of D ^ to the position of the contact roller) The bobbin holder rotates the turret table in a direction in which the bobbin holder retracts from the contact roller so as to return to the original state.

1 4. Attach the bobbin to two rotatable bobbin holders projecting from a turret table rotatably mounted on the machine frame, and press the contact roller against the yarn wound on the bobbin. When the amount of the yarn wound on one bobbin holder reaches a predetermined amount, the yarn is sequentially switched to the other bobbin holder, and according to the thickness of the package wound on the one bobbin holder. In the yarn switching winder in which the evening table is rotated so that a distance between the bobbin holder on the winding side and the contact roller is increased,

Contactor position detecting means for detecting a contactor position corresponding to a predetermined initial package winding diameter (D ^), winding-thickness factor learning means for learning factors related to thickening, and rotation and rotation of the target table. The control means controls the movement of the contact roller. The control means determines that the contactor position detecting means has reached a predetermined winding diameter (DJ from the winding winding diameter of the yarn (D ^). Until the detection, the evening lettable is fixed at a predetermined position, and the winding diameter of the package from the position where the contact roller is wound to the position where the winding diameter of the package is increased to the predetermined winding diameter (D ^). The yarn is moved to take up the yarn, and during that time, the factor concerning the winding of the package is learned by the winding factor learning means while the contact controller is retracted to the bobbin holder. And

From the time when the package winding diameter reaches the predetermined winding diameter (D) to the time when the package winding diameter reaches the maximum winding diameter (D _mQv ) before thread switching, based on the factor related to winding thickening learned by the winding thickening factor learning means. Then, a factor relating to the subsequent winding thickness is calculated, and the contact roller at the time of contact with the package at the beginning of winding ( _DQ ) of the yarn from the position of the contact roller at the time of contact with the package at the predetermined winding diameter (D ^) Wherein the bobbin holder rotates the turret table in a direction to retreat from the contact roller so that the contact roller returns to the position.

1 5. Attach the bobbin to the two bobbin holders that are circulated to the machine frame, wind the yarn by pressing the contactor against the yarn wound on the bobbin, and wind up the bobbin. When the yarn wound on the bobbin reaches a predetermined amount, it is sequentially transferred to the other bobbin holder. The thread is configured to be switched and the bobbin holder is moved so that the interval between the bobbin holder on the winding side and the contact roller increases according to the thickness of the package wound on the one bobbin holder. In the switching winder of

Setting means for setting a predetermined initial package winding diameter; detecting means for detecting a factor relating to the thickening of a package formed on the bobbin; package winding based on a factor relating to the thickening detected by the detecting means. Package winding diameter calculating means for calculating the diameter, comparing means for comparing the package winding diameter calculated by the package winding diameter calculating means with a predetermined initial package winding diameter set by the setting means, and the evening lette And a control means for controlling the rotation of the bull and the movement of the contact controller, and the control means controls the winding from the winding start diameter (D _Q ) of the yarn to a predetermined winding diameter (D ^). The bobbin holder is fixed at a predetermined position, and the contact roller is moved from the start position of winding to a position where the winding diameter of the package is increased to the predetermined winding diameter (D ^) to take up the yarn. Meanwhile, learning the factors relating to the winding of the package while the contact controller retracts with respect to the bobbin holder,

From the time when the package winding diameter reaches the predetermined winding diameter (o) to the time when the _package reaches the maximum winding diameter (D _mQY ) before thread switching, the subsequent winding _thickening based on the learned winding _thickening factor. From the position of the contact roller at the time of contact with the package of the predetermined winding diameter (D) to the position of the contact roller at the start of winding of the yarn (at the position of the contact roller at the time of contact with the package of D ^). The bobbin holder is moved in a direction in which the bobbin holder is retracted from the contact roller so that the roller returns.