JP2010163250A - Yarn winder and spinning machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a yarn winder capable of forming a package in a desired position to each winding bobbin even if a difference is caused in the relative positional relationship between the respective winding bobbins and respective traverse devices. <P>SOLUTION: This yarn winder 1 has a bobbin holder 3 for coaxially installing and supporting a plurality of winding bobbins 2, and a plurality of traverse devices 5 having yarn guides 4 and traversing respective yarns Y to the respective winding bobbins 2 by reciprocating the yarn guides 4. In the traverse devices 5, the traverse devices 5 freely changing a reciprocating range of reciprocating motion of the yarn guide 4 are arranged corresponding to the respective winding bobbins 2. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to a yarn winding device and a spinning machine.

  As this type of technology, Patent Document 1 (Japanese Patent Laid-Open No. 5-24740) discloses that for each of a plurality of bobbins arranged in parallel in the axial direction so that the yarn can be wound around the plurality of bobbins. A first traverse blade and a second traverse blade provided slightly deviated on the upstream side in the yarn winding direction, wherein the first and second traverse blades rotate in opposite directions, Disclosed is a yarn traversing device for traversing while delivering. As disclosed in FIG. 2 of Patent Document 1, the plurality of bobbins are arranged coaxially with respect to the spindle from one direction.

  However, the bobbin lengths of the plurality of winding bobbins are not necessarily constant with high accuracy. In particular, in a recent production site, the winding bobbin is used repeatedly over and over, and the bobbin length of the winding bobbin expands and contracts depending on the atmospheric conditions at the site due to this long-term use.

  The variation in the bobbin length is a cause of the relative positional relationship between each take-up bobbin and each traverse device in the above-described device in which the plurality of take-up bobbins are coaxially mounted and supported on the bobbin holder. It becomes. Due to this relative positional shift, the package disclosed in Patent Document 1 sometimes fails to form a package at a desired position with respect to each winding bobbin. This problem is particularly noticeable between the winding bobbin arranged last with respect to the bobbin holder and the traverse device corresponding to the winding bobbin.

  The present invention has been made in view of these points, and its main purpose is to provide a package for each winding bobbin even if a relative positional shift between each winding bobbin and each traverse device occurs. An object of the present invention is to provide a yarn winding device and a spinning machine that can be formed at a desired position.

Means and effects for solving the problems

  The problems to be solved by the present invention are as described above. Next, means for solving the problems and the effects thereof will be described.

  According to an aspect of the present invention, there is provided a yarn winding device configured as follows. That is, the yarn winding device has a bobbin holder that coaxially mounts and supports a plurality of winding bobbins, and a yarn guide. By reciprocating this yarn guide, each yarn is wound on each winding bobbin. A plurality of traverse devices that traverse. In the traverse device, a traverse device in which the reciprocating range of the reciprocating motion of the yarn guide can be changed is arranged corresponding to each winding bobbin. Thus, by configuring each traverse device so that the reciprocating range of the reciprocating motion of each yarn guide can be changed, even if the relative positional deviation described above occurs, The package can be formed at a desired position.

  The above-described yarn winding device is further configured as follows. That is, each traverse device includes an endless belt to which the yarn guide is attached and a pair of endless belts that support the endless belt so that at least a part of the endless belt is substantially parallel to the longitudinal direction of the bobbin holder. A support unit; and a belt drive source that drives the endless belt. The belt drive source reciprocates the endless belt so that the yarn guide is substantially parallel to the longitudinal direction of the bobbin holder. This is a belt-type traverse device that can reciprocate. By adopting the belt-type traverse device as the traverse device in this way, the reciprocating width of the reciprocating motion of the yarn guide can be freely changed, so that it can cope with the production of a so-called tapered end package. Further, in this belt-type traverse device, the yarn can be restrained at a desired relative position with respect to the winding bobbin. This relative position can be outside the reciprocal range of the reciprocating motion of the yarn guide during winding. This has the following incidental effects, for example. That is, when forming so-called bar winding (tail end winding) on the winding bobbin and outside the range for forming the package, without using a special yarn shifting mechanism, using the yarn guide itself, The yarn can be guided to the forming position.

  The above-described yarn winding device is further configured as follows. That is, the adjacent belt-type traverse devices are arranged so as to overlap. That is, when the belt type traverse device is employed, the yarn guide reciprocates between the pair of support units. Therefore, the device width of the belt-type traverse device is at least the reciprocal width of the reciprocating motion of the yarn guide during winding, with the installation space for the pair of support units added. On the other hand, the bobbin length of the take-up bobbin is set to the same extent as the package length of the package as much as possible due to various circumstances. Therefore, in the above-described yarn winding device in which the plurality of winding bobbins are packed and arranged on the bobbin holder, if the belt-type traverse devices are arranged in front of the winding bobbins, the adjacent belts are inevitably adjacent to each other. Type traverse devices will physically interfere with each other. Thus, as described above, the interference can be eliminated by arranging the adjacent belt-type traverse devices so as to overlap each other. And since interference can be eliminated without a problem in this way, the belt-type traverse device can be introduced without increasing the machine width of the yarn winding device.

  The above-described yarn winding device is further configured as follows. That is, the adjacent belt-type traverse devices overlap each other by inclining the trajectory of the reciprocating motion of each yarn guide with respect to the longitudinal direction of the bobbin holder. A contact roller between the plurality of traverse devices and the bobbin holder, which is in contact with a package formed on each take-up bobbin and on which each yarn traversed by each traverse device is wound. Is provided. A traverse control unit for controlling the belt drive source of each belt-type traverse device is provided. Each traverse control unit is configured to be able to control the belt drive source so that the yarn density in the vicinity of both ends of the package formed on the winding bobbin is uniform. That is, when the belt-type traverse device is inclined as described above, the free length, which is the distance between the yarn guide and the contact roller, becomes asymmetric. If the free length becomes asymmetric, the yarn density in the vicinity of both ends of the package becomes uneven, and as a result, the package appearance deteriorates. Therefore, by providing the traverse control unit capable of controlling the belt drive source so that the yarn density in the vicinity of both ends of the package formed on the winding bobbin is uniform, free-length asymmetry is While accepting, the uneven yarn density in the vicinity of both ends of the package can be eliminated. And thereby, the external appearance of a package can be improved.

  The above-described yarn winding device is further configured as follows. That is, each traverse control unit is configured to be able to control the belt drive source so that the movement pattern in the vicinity of both ends of the traverse of the yarn guide is different. As described above, as an effective means for eliminating the unevenness of the yarn density in the vicinity of both ends of the package, the movement pattern in the vicinity of both ends of the traverse of the yarn guide may be different.

  The above-described yarn winding device is further configured as follows. That is, the adjacent belt-type traverse devices overlap each other by making the trajectories of the reciprocating motions of the respective yarn guides different. A contact roller between the plurality of traverse devices and the bobbin holder, which is in contact with a package formed on each winding bobbin and on which each yarn traversed by each traverse device is wound Is provided. A traverse control unit for controlling the belt drive source of each belt-type traverse device is provided. Each traverse control unit is configured to be able to control the belt drive source so that the yarn density of packages formed on adjacent winding bobbins is uniform. That is, when the adjacent belt-type traverse devices are arranged in a different manner as described above, the free length, which is the distance between the yarn guide and the contact roller, differs between the adjacent belt-type traverse devices. And if the free length is different between the adjacent belt-type traverse devices, the yarn density of the package formed on the adjacent winding bobbin is different, and as a result, the appearance of the package is not uniform. Therefore, by providing the traverse control unit capable of controlling the belt drive source so that the yarn density of the packages formed on the adjacent winding bobbins is uniform, the free space between the adjacent belt-type traverse devices is provided. While accepting the difference in length, it is possible to eliminate the non-uniformity of the yarn density of the package between the adjacent belt-type traverse devices. And thereby, the external appearance of a package can be made uniform.

  The above-described yarn winding device is further configured as follows. That is, each traverse control unit is configured to be able to control the belt drive source so that the reciprocating motion of the yarn guide is different from the reciprocating motion of the yarn guide in another adjacent belt-type traverse device. As described above, one effective means for eliminating the non-uniformity of the yarn density of the package is to vary the reciprocating motion of the yarn guides in the adjacent belt-type traverse devices.

  The spinning machine includes a spinning unit that spins a plurality of yarns, and the yarn winding device according to any one of the above that winds the plurality of yarns spun from the spinning unit. Is done. According to this, an excellent package can be produced.

1 is a perspective view of a yarn winding device according to a first embodiment of the present invention. Front enlarged view of the traverse device Enlarged view of the thread guide Front enlarged view of the traverse device Control block diagram of yarn winding device Diagram showing control pattern of traverse device Partial enlarged view of the tip of the bobbin holder It is a figure similar to FIG. 2, Comprising: The figure which concerns on 2nd embodiment of this invention FIG. 6 is a view similar to FIG. 5 and according to the second embodiment of the present invention. FIG. 7 is a diagram similar to FIG. 6, and is a diagram according to the second embodiment of the present invention.

  Hereinafter, a first embodiment of the present invention will be described with reference to FIGS.

  FIG. 1 is a perspective view of a yarn winding device according to a first embodiment of the present invention. As shown in FIG. 1, the yarn winding device 1 according to the present embodiment includes a plurality (four in the present embodiment) for winding the yarn Y supplied in a plurality (four in the present embodiment). ) Has a bobbin holder 3 arranged coaxially from one direction and a yarn guide 4 capable of catching each of the yarns Y. By reciprocating the yarn guide 4, each winding A plurality of (four in this embodiment) traverse devices 5 that traverse each yarn Y with respect to the take-up bobbin 2 are provided as a main configuration. Each traverse device 5 is configured to shift the reciprocating range of the reciprocating motion of each yarn guide 4 in the longitudinal direction of the bobbin holder 3. Hereinafter, the configuration of the yarn winding device 1 will be described in detail.

  In this embodiment, the yarn winding device 1 is applied to a spinning machine 7 including a spinning unit that simultaneously spins a plurality of yarns Y that are synthetic fibers such as multifilaments and monofilaments. That is, the spinning machine 7 includes a spinning unit that spins a plurality of yarns Y, and the above-described yarn winding device 1 that winds the plurality of yarns Y spun from the spinning unit. Is done. Each yarn Y spun from the spinning section is sent to the traverse device 5 through a traverse fulcrum guide 8 which is shown schematically, and is wound on the take-up bobbin 2 while being traversed by the traverse device 5. It is like that.

  Specifically, the above-described yarn winding device 1 is provided with a device main body 9, a turret board 10 rotatably supported on a side surface of the apparatus main body 9, and a horizontal projection from the turret board 10. A pair of the bobbin holders 3, the beam bodies 12 that support the plurality of traverse devices 5 and the contact rollers 11, and a keyboard 13 (expansion / contraction amount input means) provided on a side surface of the device main body 9 are provided.

  Hereinafter, for convenience of explanation, in the following explanation, the term “tip side” simply means the leading end side in the projecting direction of the bobbin holder 3, and the term “proximal end side” means the projecting direction of the bobbin holder 3. It shall mean the proximal end side.

  The bobbin holder 3 is used to coaxially mount and support the plurality of take-up bobbins 2 and is a cantilever projecting in a pair from the turret board 10 in the horizontal direction. With this configuration, the plurality of winding bobbins 2 are externally fitted in order from the distal end side to the proximal end side with respect to the bobbin holder 3 and are packed toward the turret board 10. Can be spread on the bobbin holder 3 without any gaps. The bobbin holder 3 is configured to rotate at a predetermined rotational speed together with the plurality of winding bobbins 2 by a bobbin holder motor 14 (see also FIG. 5) provided in each bobbin holder 3.

  The traverse device 5 is configured as a so-called belt type in the present embodiment. FIG. 2 is an enlarged front view of the traverse device. As shown in FIG. 2, the belt-type traverse device 5 includes an endless belt 15 to which the yarn guide 4 is attached, and a part of the endless belt 15 is substantially parallel to the longitudinal direction of the bobbin holder 3. Thus, a pair of support units 16 that support the endless belt 15 and a drive motor 17 (belt drive source) that drives the endless belt 15 are provided. In the belt-type traverse device 5, the drive motor 17 reciprocates the endless belt 15 so that the yarn guide 4 can reciprocate substantially parallel to the longitudinal direction of the bobbin holder 3. The support unit 16 and the drive motor 17 are attached to a plate-like base 18, and the base 18 is fixed to the beam body 12 in an arbitrary posture. A rail 19 that linearly guides the yarn guide 4 extends between the pair of support units 16 so that the yarn guide 4 does not flutter when the endless belt 15 reciprocates.

  In this embodiment, a timing belt is used as the endless belt 15, and the endless belt 15 travels on an isosceles triangular locus by being wound around a pair of support units 16 and a drive motor 17. Yes.

  The support unit 16 includes a pulley 20 around which the endless belt 15 is wound, and a stay 21 for rotatably fixing the pulley 20 to the base 18. The stay 21 protrudes from the pulley 20 and extends toward the drive motor 17. The stay 21 is fastened and fixed to the base 18.

  The drive motor 17 is a pulse motor in this embodiment, and is connected to a winding control unit 60 (see FIG. 5) described later.

  The yarn guide 4 is configured to capture the yarn Y using the tension of the yarn Y. FIG. 3 is an enlarged view of the yarn guide. As shown in FIG. 3, the yarn guide 4 includes a fitting portion 22 having a U-shaped cross section for fitting the yarn guide 4 to the endless belt 15, and an upper end of the fitting portion 22. And a yarn catching portion 23 to be formed. The yarn catching portion 23 is composed of a pair of inclined portions 25 having inclined surfaces 24 on which the yarn Y traveling between the traverse fulcrum guide 8 and the winding bobbin 2 shown in FIG. Between the pair of inclined portions 25, a yarn accommodating groove 26 for accommodating and capturing the yarn Y is formed. In this configuration, when the yarn guide 4 travels in the direction of the thick arrow in FIG. 3, the inclined surface 24 of the inclined portion 25 collides with the yarn Y, and this yarn Y is slightly bent by the inclined portion 25. A resultant force P of the tension of the yarn Y acting in different directions is generated in a direction opposite to the traveling direction of the yarn guide 4. Then, due to the presence of the resultant force P, the yarn Y moves on the inclined surface 24 of the inclined portion 25 toward the top of the inclined portion 25 and is accommodated in the yarn accommodating groove 26 eventually.

  A spinning section (not shown) melts the synthetic fiber raw material and discharges it from the die, thereby continuously spinning the plurality of yarns Y.

  The apparatus main body 9 includes a winding control unit 60 (see also FIG. 5).

  The turret board 10 is provided with a turret motor 27 (see also FIG. 5) for rotationally driving the turret board 10. When the bobbin is changed, the turret board 10 is driven to rotate 180 degrees counterclockwise by the turret motor 27.

  The contact roller 11 is provided between the plurality of belt-type traverse devices 5 and the bobbin holder 3, and comes into contact with a package formed on each take-up bobbin 2. Each yarn Y which is shaken is wound. The contact roller 11 extends parallel to the longitudinal direction of the bobbin holder 3.

  The beam body 12 extends in parallel to the longitudinal direction of the bobbin holder 3 and has an inclined surface 12a to which a plurality of belt-type traverse devices 5 are attached. The triangular traversing surface that can be specified by traversing each yarn Y between the traverse fulcrum guide 8 and the yarn guide 4 is substantially parallel to the inclined surface 12 a and is on the circumferential surface of the contact roller 11. On the other hand, there is a relationship between a circle and a tangent in a sectional view.

  The configuration of the yarn winding device 1 has been described above. Next, the arrangement relationship of the adjacent belt-type traverse devices 5 will be described with reference to FIG.

  That is, as shown in FIG. 2, in the present embodiment, the adjacent belt-type traverse devices 5 are arranged so as to overlap each other. Specifically, the adjacent belt-type traverse devices 5 overlap each other by inclining the rails 19 with respect to the longitudinal direction of the bobbin holder 3. In addition, since the rail 19 is equivalent to the locus | trajectory of the reciprocating motion of the thread | yarn guide 4, it can be paraphrased as follows. That is, the adjacent belt-type traverse devices 5 overlap each other by inclining the trajectory of the reciprocating motion of the yarn guide 4 with respect to the longitudinal direction of the bobbin holder 3. Further, in the present embodiment, the adjacent belt-type traverse devices 5 have two support units 16 in the running direction of the yarn Y when viewed along the normal direction of the inclined surface 12a of the beam body 12 as shown in FIG. They are arranged so as to overlap each other by being arranged in a line along the line (see the thick arrow in the figure).

  Next, a guideable range as a range in which the yarn guide 4 can guide the yarn Y in the longitudinal direction of the winding bobbin 2 will be described with reference to FIG. FIG. 4 is an enlarged front view of the traverse device. As shown in FIG. 4, a rod winding shallow groove 2 </ b> T for forming a so-called rod winding (also referred to as a tail end winding) is engraved at the end of the winding bobbin 2 of the present embodiment. The A package Q schematically indicated by a two-dot chain line is formed between the rod winding shallow groove 2T and the other end of the winding bobbin 2. The belt-type traverse device 5 is sufficiently wide so that the yarn guide 4 can guide the yarn Y evenly over a wide range including the shallow groove 2T for winding the rod in addition to the package length of the package Q. Designed.

  Next, the configuration of the winding control unit 60 will be described with reference to FIG. FIG. 5 is a control block diagram of the yarn winding device.

  That is, the winding control unit 60 includes a CPU (Central Processing Unit) which is an arithmetic processing device, a control program executed by the CPU and a ROM (Read Only Memory) in which data used for the control program is stored, a program RAM (Random Access Memory) for temporarily storing data during execution. Then, the control program stored in the ROM is read by the CPU and executed on the CPU, so that the control program can execute hardware such as a CPU, a traverse control unit (No. 1 to 4) 61, an origin changing unit. 62, functioning as a bobbin holder control unit 63. The number assigned to each traverse control unit is assigned from the front end side in FIG. Further, a drive motor (No. 1 to 4) 17, a keyboard 13, a bobbin holder motor 14, and a turret motor 27 are connected to the winding control unit 60. The numbers assigned to the respective drive motors are also given from the front end side in FIG. 1 like the traverse control unit.

  Each traverse control unit (No. 1 to 4) 61 includes a control pattern storage unit 64 and an origin storage unit 65, and stores the control pattern stored in the control pattern storage unit 64 and the origin storage unit 65. The drive motors (No. 1 to 4) 17 of the belt-type traverse devices 5 are controlled based on the origin that has been made. Specifically, each traverse control unit (No. 1 to 4) 61 is configured so that each drive motor (No. 1 to 4) 61 has a uniform yarn density in the vicinity of both ends of the package Q formed on the winding bobbin 2. No. 1-4) 17 is configured to be controllable.

  The control pattern storage unit 64 stores a control pattern of the drive motor 17. In the present embodiment, the control pattern is created so that the package Q formed on the take-up bobbin 2 is a cheese package (cylindrical package) as schematically indicated by a two-dot chain line in FIG. An example of this control pattern is shown in FIG. FIG. 6 is a diagram illustrating a control pattern of the traverse device. In FIG. 6, the vertical axis represents the traverse speed Vt, and the horizontal axis represents time t. In FIG. 4, the traverse speed Vt when the yarn guide 4 advances toward the tip side is set to + in FIG. As shown in FIG. 6, the control pattern according to the present embodiment is specifically created so that the motion patterns in the vicinity of both ends of the traverse of the yarn guide 4 are different. More specifically, the traverse speed Vt of the yarn guide 4 immediately after the yarn guide 4 reaches the right end B of the reciprocating range of the reciprocating movement and reverses in FIG. 4 is set slightly higher. That is, only the right end B is subjected to feedforward control so as to eliminate the stay of the yarn Y during reversal. Note that the control pattern shown in FIG. 6 is created so that the twill angle is 0.5 degrees.

  The origin storage unit 65 stores an origin that serves as a reference for the reciprocating motion of the yarn guide 4 of the belt-type traverse device 5. Here, the “origin” means the position of the center point of the reciprocating motion of the yarn guide 4 of the belt-type traverse device 5 in this embodiment.

  The origin changing unit 62 changes the origin stored in the origin storage unit 65 of each traverse control unit (No. 1 to 4) 61 based on the expansion / contraction amount of the winding bobbin 2 input via the keyboard 13. To do. FIG. 7 is a partially enlarged view of the tip of the bobbin holder. Specifically, the expansion / contraction amount is the expansion / contraction amount in the bobbin length direction of the entire plurality of winding bobbins 2, and is the most distal side among the plurality of winding bobbins 2 arranged in a row on the bobbin holder 3. The position of the end face E on the front end side of the winding bobbin 2 can be obtained by reading it on the scale S in FIG. 7 carved on the bobbin holder 3. For example, when the position of the end surface E of the winding bobbin 2 is “−2.8 mm” on the scale S as shown in FIG. 7, the expansion / contraction amount is “−2.8 mm”. . Then, the origin changing unit 62 adds the amount 7 / 8ΔL obtained by dividing the expansion / contraction amount ΔL by 8 and multiplying by 7 to the origin stored in the origin storage unit 65 of the traverse control unit (No. 1) 61. . Similarly, the origin changing unit 62 sets 5 / 8ΔL as the origin stored in the origin storage unit 65 of the traverse control unit (No. 2) 61, and 3 / 8ΔL as the origin of the traverse control unit (No. 3) 61. 1/8 ΔL is added to the origin stored in the origin storage unit 65 of the traverse control unit (No. 4) 61 to the origin stored in the storage unit 65, respectively. The operation of the origin changing unit 62 described above is that the bobbin length varies depending on the humidity of the usage environment because the winding bobbin 2 is made of paper, and the change in bobbin length is the same for all winding bobbins 2. It is assumed that they occur evenly.

  The bobbin holder control unit 63 controls the rotation of the bobbin holder motor 14.

  In addition, the winding control unit 60 includes a turret control unit that controls the rotation of the turret motor 27.

  Next, the operation of this embodiment will be described. First, the operator packs four empty winding bobbins 2 in the direction of the turret board 10 into the pair of bobbin holders 3.

  The operator operates the keyboard 13 and the like to operate the spinning machine 7 and reads the above-described extension amount and inputs it to the winding control unit 60. Then, the origin changing unit 62 changes the origin stored in the origin storage unit 65 of each traverse control unit (No. 1 to 4) 61 as described above. By changing the origin, the reciprocating range of the reciprocating motion of each yarn guide 4 is slightly shifted in the longitudinal direction of the bobbin holder 3.

  The four yarns Y spun from the spinning unit are sucked and held by a suction gun (not shown), and the bobbin holder control unit 63 drives the bobbin holder motor 14 to rotate the winding bobbin 2 at a desired rotational speed. Let Each yarn Y sucked and held by the suction gun is guided to the rod winding shallow groove 2T of each winding bobbin 2. As a result, each yarn Y is strongly held by the rod winding shallow groove 2T of each winding bobbin 2, and each yarn Y is released from the suction holding state by the suction gun, so that each yarn Y becomes a rod winding shallow groove 2T. Then, it rides on the outer peripheral surface of the winding bobbin 2 and moves while drawing a spiral toward the center of the bobbin length of the winding bobbin 2.

  Next, each traverse control unit (No. 1 to 4) 61 is configured so that each drive motor (No. 1-4) is based on the control pattern stored in the control pattern storage unit 64 and the origin stored in the origin storage unit 65. No. 1-4) 17 is controlled. As a result, each yarn Y is captured by each yarn guide 4 and begins to traverse (see also FIG. 3), and a cheese package Q as shown in FIG. It is formed.

  When the package Q is fully wound, the turret control unit drives the turret motor 27 to rotate the turret board 10 by 180 degrees counterclockwise, and each traverse control unit (No. 1 to 4) 61 is operated by the yarn guide 4. Is moved to a position facing the shallow groove 2T for rod winding. Then, each yarn Y is firmly held in the shallow winding groove 2T of the empty winding bobbin 2 as described above. Subsequently, the traverse control unit (Nos. 1 to 4) 61 again determines each drive motor based on the control pattern stored in the control pattern storage unit 64 and the origin stored in the origin storage unit 65. (No. 1-4) 17 is controlled. As a result, the cheese package Q as shown in FIG. 4 is formed again on each winding bobbin 2 without the yarn Y being captured by the yarn guide 4.

(Summary)
(Claim 1)
As described above, in the above-described embodiment, the yarn winding device 1 is configured as follows. In other words, the yarn winding device 1 includes a bobbin holder 3 that coaxially mounts and supports a plurality of winding bobbins 2 and a yarn guide 4, and the yarn guide 4 is reciprocated to each winding bobbin 2. A plurality of traverse devices 5 that traverse each yarn Y are provided. In the traverse device 5, the traverse device 5 in which the reciprocating range of the reciprocating motion of the yarn guide 4 can be changed is arranged corresponding to each winding bobbin 2. In this way, by configuring each traverse device 5 so that the reciprocating range of the reciprocating motion of each yarn guide 4 can be changed, each take-up bobbin 2 even if the relative positional relationship is shifted. In contrast, the package Q can be formed at a desired position.

  In the above embodiment, the belt-type traverse device 5 is adopted as the traverse device 5, but an arm-type traverse device may be adopted instead. This arm-type traverse device is a traverse device that turns and reciprocates an arm member having a yarn guide formed at the tip by a drive motor configured as a voice coil motor.

(Claim 2)
The yarn winding device 1 is further configured as follows. That is, each traverse device 5 includes the endless belt 15 to which the yarn guide 4 is attached and the endless belt 15 so that a part of the endless belt 15 is substantially parallel to the longitudinal direction of the bobbin holder 3. A pair of support units 16 that support the endless belt 15 and a drive motor 17 that drives the endless belt 15. The drive motor 17 causes the endless belt 15 to reciprocate so that the yarn guide 4 is attached to the bobbin holder 3. This is a belt-type traverse device 5 that can reciprocate substantially parallel to the longitudinal direction. By adopting the belt-type traverse device 5 as the traverse device 5 in this way, the reciprocating width of the reciprocating motion of the yarn guide 4 can be freely changed. Therefore, a so-called taper as shown in FIG. 4 or FIG. Applicable to end package production. In the belt-type traverse device 5, the yarn Y can be restrained at a desired relative position with respect to the winding bobbin 2. This relative position can be outside the reciprocal range of the reciprocating motion of the yarn guide 4 during winding (see also FIG. 4). This has the following incidental effects, for example. That is, when forming a so-called bar winding (tail end winding) on the winding bobbin 2 outside the range where the package Q is formed, the yarn guide 4 itself is moved without using a special yarn shifting mechanism. It is possible to guide the yarn Y to the forming position.

(Claim 3)
The yarn winding device 1 is further configured as follows. That is, the adjacent belt-type traverse devices 5 are arranged so as to overlap. That is, when the belt-type traverse device 5 is employed, the yarn guide 4 reciprocates between the pair of support units 16. Therefore, the device width of the belt-type traverse device 5 is such that at least the reciprocating width of the reciprocating motion of the yarn guide 4 at the time of winding takes into account the installation space (for example, +40 to 60 mm) of the pair of support units 16 Become. On the other hand, the bobbin length of the winding bobbin 2 is set as much as possible (for example, package length + 30 mm) as much as possible for the package Q due to various circumstances. Therefore, in the above-described yarn winding device 1 in which the plurality of winding bobbins 2 are arranged on the bobbin holder 3, when each belt-type traverse device 5 is arranged in front of each winding bobbin 2, The adjacent belt-type traverse devices 5 will inevitably interfere with each other. Therefore, as described above, the adjacent belt-type traverse devices 5 are arranged so as to overlap each other, whereby the interference can be eliminated. And since interference can be eliminated without a problem in this way, the belt-type traverse device 5 can be introduced without increasing the device width of the yarn winding device 1.

(Claim 4)
The yarn winding device 1 is further configured as follows. That is, the adjacent belt-type traverse devices 5 overlap each other by inclining the reciprocal movement trajectory of each yarn guide 4 with respect to the longitudinal direction of the bobbin holder 3. Between the plurality of belt-type traverse devices 5 and the bobbin holder 3, the belt Q traverses by the belt-type traverse devices 5 while making contact with the package Q formed on each take-up bobbin 2. A contact roller 11 around which each yarn Y is wound is provided. A traverse control unit (No. 1 to 4) 61 for controlling the drive motor 17 of each belt-type traverse device 5 is provided. Each traverse control unit (No. 1 to 4) 61 is configured to be able to control the drive motor 17 so that the yarn density in the vicinity of both ends of the package Q formed on the winding bobbin 2 is uniform. The That is, when the belt-type traverse device 5 is inclined as described above, the free length ΔF which is the distance between the yarn guide 4 and the contact roller 11 becomes asymmetrical on the paper surface of FIG. When the free length ΔF is asymmetrical, the yarn density in the vicinity of both ends of the package Q becomes uneven, and as a result, the package appearance deteriorates. Therefore, the traverse control unit (No. 1 to 4) 61 capable of controlling the drive motor 17 is provided so that the yarn density in the vicinity of both ends of the package Q formed on the winding bobbin 2 is uniform. As a result, the unevenness of the yarn density in the vicinity of both ends of the package Q can be solved while accepting the asymmetry of the free length ΔF. And thereby, the external appearance of the package Q can be improved.

  If the free length ΔF is asymmetrical, the yarn density in the vicinity of both ends of the package Q is not uniform for the following reason. That is, if the free length ΔF is relatively large, the followability of the yarn Y to the yarn guide 4 is relatively poor at the time of reversal, which causes the yarn Y to stay at the end of the package Q.

(Claim 5)
The yarn winding device 1 is further configured as follows. That is, each traverse control unit (No. 1 to 4) 61 is configured to be able to control the drive motor 17 so that the movement patterns in the vicinity of both ends of the traverse of the yarn guide 4 are different. As described above, as an effective means for eliminating the unevenness of the yarn density in the vicinity of both ends of the package Q, the movement patterns in the vicinity of both ends of the traverse of the yarn guide 4 are different. It is done.

(Claim 8)
The spinning machine 7 includes a spinning unit that spins a plurality of yarns Y, and the above-described yarn winding device 1 that winds the plurality of yarns Y spun from the spinning unit. Is done. According to this, an excellent package Q can be produced.

  Next, a second embodiment of the present invention will be described with reference to FIGS. FIG. 8 is a view similar to FIG. 2 and according to the second embodiment of the present invention. FIG. 9 is a view similar to FIG. 5 and according to the second embodiment of the present invention. FIG. 10 is a view similar to FIG. 6 and according to the second embodiment of the present invention. In the following, the present embodiment will be described with a focus on differences from the first embodiment, and overlapping descriptions will be omitted as appropriate.

  In the first embodiment, the adjacent belt-type traverse devices 5 overlap each other by inclining the reciprocating motion trajectory of each yarn guide 4 with respect to the longitudinal direction of the bobbin holder 3. However, in this embodiment, instead of this, as shown in FIG. 8, the adjacent belt-type traverse devices 5 overlap each other by making the trajectories of the reciprocating motions of the respective yarn guides 4 different. Specifically, in any belt-type traverse device 5, the posture of the base 18 with respect to the inclined surface 12 a is determined so that the longitudinal direction of the rail 19 is parallel to the longitudinal direction of the bobbin holder 3, and adjacent belt-type traverse devices. 5 shows a substantially line along the running direction of the yarn Y (see the bold arrow in the figure) when viewed along the normal direction of the inclined surface 12a of the beam 12 as shown in FIG. Are arranged so as to overlap each other.

  Moreover, in said 1st embodiment, each traverse control part (No. 1-4) 61 is made so that the yarn density in the package both ends vicinity of the package Q formed on the said winding bobbin 2 becomes equal. The drive motors (No. 1 to 4) 17 are configured to be controlled based on control patterns having different movement patterns in the vicinity of both ends of the traverse of the yarn guide 4. On the other hand, in this embodiment, each traverse control unit (No. 1 to 4) 61 is configured so that the yarn density of the package Q formed on the adjacent winding bobbin 2 is uniform. .1-4) 17 is configured to be controllable. More specifically, each traverse control unit (No. 1 to 4) 61 drives each yarn so that the reciprocating motion of the yarn guide 4 is different from the reciprocating motion of the yarn guide 4 in another adjacent belt-type traverse device 5. The motor (No. 1 to 4) 17 is configured to be controllable.

  Specifically, it is as shown in FIGS. That is, in this embodiment, each traverse control unit (No. 1 to 4) 61 has two control pattern storage units 64 of FIG. The two control pattern storage units 64 are hereinafter referred to as a control pattern A storage unit 64A and a control pattern B storage unit 64B. The control pattern A storage unit 64A stores the control pattern A shown in FIG. 10A, and the control pattern B storage unit 64B stores the control pattern B shown in FIG. 10B. A control pattern A shown in FIG. 10A is a control pattern for a general cheese package. On the other hand, the control pattern B shown in FIG. 10B is a control pattern in which the traverse speed Vt immediately after inversion is set slightly higher.

  Then, the traverse control unit (No. 1) 61 is based on the control pattern B stored in the control pattern B storage unit 64B and the origin stored in the origin storage unit 65, and the drive motor (No. 1). 17 is controlled. On the other hand, the traverse control unit (No. 2) 61 is based on the control pattern A stored in the control pattern A storage unit 64A and the origin stored in the origin storage unit 65, and the drive motor (No. 2). 17 is controlled. Similarly, the traverse control unit (No. 3) 61 is configured to drive the motor (No. 3) based on the control pattern B stored in the control pattern B storage unit 64B and the origin stored in the origin storage unit 65. ) 17 is controlled. The traverse control unit (No. 4) 61 controls the drive motor (No. 4) 17 based on the control pattern A stored in the control pattern A storage unit 64A and the origin stored in the origin storage unit 65. Control.

  According to the above control, even if there is a difference in the free length ΔF between the adjacent belt-type traverse devices 5 as shown in FIG. 8, in the belt-type traverse device 5 having a large free length ΔF, the yarn guide immediately after the reversal. Since the traverse speed Vt of 4 is set slightly higher, non-uniformity in the yarn density of the package Q due to the difference in the free length ΔF can be eliminated.

(Summary)
(Claim 6)
As described above, in the second embodiment, the yarn winding device 1 is configured as follows. That is, the adjacent belt-type traverse devices 5 overlap each other by making the trajectories of the reciprocating motions of the respective yarn guides 4 different from each other. Between the plurality of belt-type traverse devices 5 and the bobbin holder 3, the belt Q traverses by the belt-type traverse devices 5 while making contact with the package Q formed on each take-up bobbin 2. A contact roller 11 around which each yarn Y is wound is provided. A traverse control unit (No. 1 to 4) 61 for controlling the drive motor 17 of each belt-type traverse device 5 is provided. Each traverse control unit (No. 1 to 4) 61 controls the drive motor (No. 1 to 4) 17 so that the yarn density of the package Q formed on the adjacent winding bobbin 2 is uniform. Configured to be possible. That is, when the adjacent belt-type traverse devices 5 are arranged in a different manner as described above, the free length ΔF that is the distance between the yarn guide 4 and the contact roller 11 differs between the adjacent belt-type traverse devices 5. When the free length ΔF is different between the adjacent belt-type traverse devices 5, the yarn density of the package Q formed on the adjacent winding bobbin 2 is different, and as a result, the appearance of the package Q is not uniform. Therefore, a traverse control unit (No. 1 to 4) that can control each drive motor (No. 1 to 4) 17 so that the yarn density of the package Q formed on the adjacent winding bobbin 2 is uniform. By providing 61, the difference in the free length ΔF between the adjacent belt-type traverse devices 5 is accepted, but the unevenness of the yarn density of the package Q between the adjacent belt-type traverse devices 5 is eliminated. Can do. And thereby, the external appearance of the package Q can be made uniform.

(Claim 7)
The yarn winding device 1 is further configured as follows. That is, each traverse control unit (No. 1 to 4) 61 is configured so that the reciprocating motion of the yarn guide 4 is different from the reciprocating motion of the yarn guide 4 in another adjacent belt-type traverse device 5. .1-4) 17 is configured to be controllable. Thus, as an effective means for eliminating the non-uniformity of the yarn density of the package Q, it is possible to vary the reciprocating motion of the yarn guide 4 in the adjacent belt-type traverse devices 5.

  The preferred embodiments of the present invention have been described above, but the above embodiments can be modified as follows.

  That is, as shown in FIGS. 4, 6, and 10, the yarn Y is wound up as a cheese package in each of the above embodiments, but may be wound up as a tapered end package instead.

DESCRIPTION OF SYMBOLS 1 Thread winding device 2 Winding bobbin 3 Bobbin holder 4 Thread guide 5 Belt-type traverse device 7 Spinning machine

Claims (8)

A bobbin holder for coaxially mounting and supporting a plurality of winding bobbins;
A plurality of traverse devices having a yarn guide and traversing each yarn with respect to each winding bobbin by reciprocating the yarn guide;
The traverse device has a traverse device in which the reciprocating range of the reciprocating motion of the yarn guide can be freely changed corresponding to each winding bobbin,
A yarn winding device characterized by that. The yarn winding device according to claim 1,
Each traverse device has an endless belt to which the yarn guide is attached and a pair of support units that support the endless belt so that at least a part of the endless belt is substantially parallel to the longitudinal direction of the bobbin holder. And a belt drive source for driving the endless belt,
The belt-type traverse device in which the belt drive source reciprocates the endless belt so that the yarn guide can reciprocate substantially parallel to the longitudinal direction of the bobbin holder.
A yarn winding device characterized by that. The yarn winding device according to claim 2,
The adjacent belt-type traverse devices are arranged so as to overlap,
A yarn winding device characterized by that. The yarn winding device according to claim 3,
The adjacent belt-type traverse devices are overlapped by inclining the reciprocating motion trajectory of each thread guide with respect to the longitudinal direction of the bobbin holder,
A contact roller between the plurality of traverse devices and the bobbin holder, which is in contact with a package formed on each winding bobbin and on which each yarn traversed by each traverse device is wound Is provided,
A traverse control unit for controlling the belt drive source of each belt-type traverse device is provided,
Each traverse control unit is configured to be able to control the belt drive source so that the yarn density in the vicinity of both ends of the package formed on the winding bobbin is uniform.
A yarn winding device characterized by that. The yarn winding device according to claim 4,
Each traverse control unit is configured to be able to control the belt drive source so that the movement pattern in the vicinity of both ends of the traverse of the yarn guide is different.
A yarn winding device characterized by that. The yarn winding device according to claim 3,
The adjacent belt-type traverse devices overlap each other by making the trajectory of the reciprocating motion of each yarn guide different,
A contact roller between the plurality of traverse devices and the bobbin holder, which is in contact with a package formed on each winding bobbin and on which each yarn traversed by each traverse device is wound Is provided,
A traverse control unit for controlling the belt drive source of each belt-type traverse device is provided,
Each traverse control unit is configured to be able to control the belt drive source so that the yarn density of the packages formed on the adjacent winding bobbins is uniform.
A yarn winding device characterized by that. The yarn winding device according to claim 6,
Each traverse control unit is configured to be able to control the belt drive source so that the reciprocating motion of the yarn guide is different from the reciprocating motion of the yarn guide in another adjacent belt-type traverse device.
A yarn winding device characterized by that. A spinning section for spinning a plurality of yarns;
The yarn winding device according to any one of claims 1 to 7, wherein a plurality of yarns spun from the spinning portion are wound.
Configured with
A spinning machine characterized by that.

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