JP2012197147A - Winding unit, automatic winder and positioning method of yarn supply bobbin - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a winding unit capable of surely adjusting a position of a yarn supply bobbin to a target position regardless of the length of the yarn supply bobbin.SOLUTION: The winder unit (winding unit) includes a bobbin holding part, a length information acquiring part, a position detecting part, a storage part, and a unit control part. The bobbin holding part holds the yarn supply bobbin. The length information acquiring part acquires length information being information on the length in the axial direction of the yarn supply bobbin. The position detecting part can detect the position of the yarn supply bobbin held by the bobbin holding part. The storage part stores information on an unreeling reference position and information on a position provided with a position detecting part. The unit control part performs control for moving the position detecting part so that the position detecting part can detect the yarn supply bobbin held by the bobbin holding part based on the length information and control for moving the yarn supply bobbin so that the yarn supply bobbin is adjusted to the unreeling reference position based on the length information and the storage content of the storage part.

Description

  The present invention mainly relates to a winding unit that forms a package by winding a yarn unwound from a yarn supplying bobbin.

  2. Description of the Related Art Conventionally, a winding unit that forms a package by winding a yarn unwound from a yarn supplying bobbin onto a winding bobbin is known. In order to adjust the tension by guiding the yarn unwound from the yarn feeding bobbin and obtain a good winding package, a yarn feeding bobbin and a yarn guide disposed above the yarn feeding bobbin It is preferable that the positional relationship is constant. As this yarn guide, a unwinding assist device that appropriately regulates (makes an appropriate shape) a balloon generated when unwinding the yarn from the yarn feeding bobbin is known.

  However, since the yarn feeding bobbin of various shapes and inner diameters is supplied to the winding unit according to the yarn type, etc., the yarn feeding bobbin and the unwinding assist device each time the type of yarn feeding bobbin supplied is changed. The positional relationship with will change. If this positional relationship changes, the unwinding tension when the yarn is unwound from the yarn supplying bobbin becomes non-uniform depending on the rotating position of the yarn supplying bobbin. Therefore, the operator has to adjust the positional relationship between the yarn feeding bobbin and the unwinding assist device every time the type of yarn feeding bobbin supplied to the winding unit is changed.

  In this regard, Patent Documents 1 and 2 disclose that the bobbin and the inner diameter of the yarn feeding bobbin are supported by a plurality of fulcrums by a plurality of claw members (tightening claw group, gripping piece) even for different inner diameters of the core tube. A bobbin holding peg that can perform a winding operation without changing the positional relationship with the winding device is described. By using the bobbin holding pegs described in Patent Documents 1 and 2, the axis of the yarn feeding bobbin at the time of unwinding can be made to coincide with the axis of the unwinding assisting device (specifically, the unwinding cylinder member).

JP-A-9-124230 JP 2006-89284 A

  However, in recent years, various types of yarns have been used, and various types of machines that wind up the yarn feeding bobbin in the pre-process of the yarn winding machine are used, so that they are supplied to the winding unit. The types and shapes of yarn feeding bobbins are diversified. Among them, when a yarn feeding bobbin with a complicated shape such as an irregularity inside the bobbin is supplied to the winding unit, the tip of the claw member is caught by the irregularity inside the yarn feeding bobbin, and the yarn feeding bobbin becomes a claw member However, the problem of being held in an oblique posture occurs.

  However, the winding unit provided with the bobbin holding pegs described in Patent Documents 1 and 2 is configured to hold the yarn supplying bobbin and is not configured to confirm the position of the supplied yarn supplying bobbin. Therefore, even if the axis of the yarn supplying bobbin is held out of alignment with the axis of the balloon restricting portion on the unwinding side, the winding operation may be advanced without being detected.

  The present invention has been made in view of the above circumstances, and its main purpose is a winding capable of reliably adjusting the position of the yarn supplying bobbin with respect to the target position regardless of the length of the yarn supplying bobbin or the like. To provide a take-off unit.

Means and effects for solving the problems

  According to the 1st viewpoint of this invention, the winding unit of the following structures is provided. That is, the winding unit includes a bobbin holding mechanism, a length information acquisition unit, a position detection unit, a storage unit, and a control unit. The bobbin holding mechanism holds a yarn feeding bobbin. The length information acquisition unit acquires length information that is information related to the axial length of the yarn feeding bobbin. The position detector can detect the position of the yarn feeding bobbin held by the bobbin holding mechanism. The storage unit stores information on a target position, which is a position where the yarn feeding bobbin should be held when winding the yarn, and information on a position where the position detection unit is provided. The control unit controls the movement of the position detection unit so that the position detection unit can detect the yarn feeding bobbin held by the bobbin holding mechanism based on the length information, and the detection of the position detection unit Control is performed to move the yarn supplying bobbin so that the yarn supplying bobbin matches the target position based on the result and the stored contents of the storage unit.

  Thereby, a position detection part can be moved to the position according to the length of a yarn feeding bobbin by using the length information which the length information acquisition part acquired. Accordingly, even when there is variation in the length of the yarn feeding bobbin, the position detection unit does not fail to detect the yarn feeding bobbin, and therefore the operation for adjusting the yarn feeding bobbin to the target position (positioning operation) can be performed reliably. it can.

  The winding unit preferably has the following configuration. That is, the winding unit includes an unwinding assist device that assists in unwinding the yarn of the yarn supplying bobbin. The target position is the unwinding reference position of the unwinding assisting device. The control unit moves the yarn feeding bobbin so that the yarn feeding bobbin held by the bobbin holding mechanism matches the unwinding reference position of the unwinding assisting device.

  As a result, the yarn of the yarn supplying bobbin can be unwound at the unwinding reference position, so that an appropriately shaped balloon can be formed between the yarn supplying bobbin and the unwinding assisting device. Therefore, the yarn can be wound while the tension of the yarn unwound from the yarn supplying bobbin is properly maintained.

  The winding unit preferably has the following configuration. That is, the unwinding assisting device moves following the change in the chase portion that is the yarn layer end portion of the yarn feeding bobbin as the winding operation of the package proceeds, thereby unwinding the yarn of the yarn feeding bobbin. It has the 1st auxiliary member to assist. The position detection unit is a chase unit detection sensor that moves with the first auxiliary member during the unwinding operation and detects the chase unit.

  Thereby, the position adjustment operation of the yarn supplying bobbin can be reliably performed by adjusting the position of the chase portion detection sensor according to the length of the yarn supplying bobbin. Further, since the first auxiliary member moves together with the chase detection sensor, individual control for adjusting the position of the first auxiliary member is not necessary. Also, when starting the unwinding of the yarn on the yarn supplying bobbin by adjusting the position of the first auxiliary member according to the length of the yarn supplying bobbin during the alignment operation (before starting the yarn unwinding) The positional relationship between the yarn feeding bobbin and the first auxiliary member can be improved. As a result, the yarn can be appropriately unwound. Further, since the chase detection sensor also serves as the position detection unit, it is not necessary to provide a new sensor or the like as the position detection unit, and the configuration can be simplified and the cost can be reduced.

  In the winding unit, the chase detection sensor also serves as the length information acquisition unit, and the chase detection sensor acquires the length information from the detection result of the yarn feeding bobbin that passes. Is preferred.

  Thereby, since it is not necessary to provide a new sensor etc. as a length information acquisition part, a structure can be simplified and cost can be reduced.

  In the winding unit, it is preferable that the first auxiliary member and the chase detection sensor are driven by a common driving source.

  Thereby, since the number of drive sources can be reduced, a structure can be simplified and cost can be reduced. In addition, it is easy to move the first auxiliary member and the chase detection sensor integrally with a simple configuration.

  In the winding unit, a stepping motor is preferably used as the drive source.

  Thereby, the position of the yarn supplying bobbin can be adjusted easily and precisely by adjusting the yarn supplying bobbin to the target position using the number of steps of the stepping motor.

  In the winding unit, the length information acquisition unit is preferably a length measurement sensor that acquires the length information by measurement.

  As a result, the length of the yarn feeding bobbin can be specifically detected at least to some extent, and the position detection unit can be moved to a position where the yarn feeding bobbin detection does not fail. Accordingly, the yarn feeding bobbin positioning operation can be performed more reliably and accurately.

  The winding unit preferably has the following configuration. That is, the winding unit includes an unwinding assist device that assists in unwinding the yarn of the yarn supplying bobbin. The target position is the unwinding reference position of the unwinding assisting device. The unwinding assist device assists in unwinding the yarn of the yarn supplying bobbin by moving following the change of the chase portion which is the yarn layer end portion of the yarn supplying bobbin accompanying the progress of the winding operation of the package. The first auxiliary member is included. The position detection unit is a chase unit detection sensor that moves with the first auxiliary member during the unwinding operation and detects the chase unit. The control unit adjusts the position of the chase detection sensor based on the measurement result of the length measurement sensor.

  Accordingly, the position of the chase detecting sensor (position detecting unit) can be adjusted according to the length of the yarn feeding bobbin that is specifically detected to some extent, so that the yarn feeding bobbin positioning operation can be performed more reliably. it can. Further, since the first auxiliary member moves together with the chase detection sensor, individual control for adjusting the position of the first auxiliary member is not necessary. Further, during the alignment operation (before the start of the yarn unwinding), the position of the first auxiliary member is adjusted according to the specific length of the yarn supplying bobbin, so that the yarn unwinding of the yarn supplying bobbin is performed. The positional relationship between the yarn feeding bobbin and the first auxiliary member when starting the operation can be improved. As a result, the yarn can be appropriately unwound.

  The winding unit preferably has the following configuration. That is, the unwinding assisting device includes a second auxiliary member that assists unwinding of the yarn of the yarn supplying bobbin on the downstream side in the winding direction of the yarn of the first auxiliary member. The control unit adjusts the position of the second auxiliary member based on the measurement result of the length measurement sensor.

  Thereby, not only the first auxiliary member but also the second auxiliary member can be moved to an appropriate position according to the length of the yarn feeding bobbin. Accordingly, the winding can be performed while maintaining the tension of the yarn unwound from the yarn supplying bobbin more appropriately.

  The winding unit preferably has the following configuration. That is, the winding unit includes a magazine-type bobbin supply device and a bobbin guide. The magazine type bobbin supply device includes a plurality of bobbin storage holes. The bobbin guide portion has a guide path for guiding the yarn feeding bobbin stored in the bobbin storage hole to the bobbin holding mechanism. The control unit performs control to move the yarn feeding bobbin received by the bobbin holding mechanism to the target position via the guide path. The length measurement sensor measures and acquires the length information from when the yarn feeding bobbin is housed in the bobbin housing hole until it reaches the target position.

  As a result, the length information can be measured and acquired in the path along which the yarn feeding bobbin is normally conveyed. Therefore, it is not necessary to provide a special path or the like for measuring the length information, and the configuration of the winding unit can be prevented from becoming complicated.

  In the winding unit, the length measurement sensor includes the length information on the yarn feeding bobbin held in at least one bobbin housing hole among the plurality of yarn feeding bobbins housed in the bobbin housing holes. It is preferable to obtain by measuring.

  Thereby, length information can be measured and acquired at a relatively early stage. Therefore, control for moving the position detection unit to a position corresponding to the detection result can be performed without difficulty.

  The winding unit preferably has the following configuration. That is, the bobbin holding mechanism can turn the received yarn supplying bobbin to at least the target position. The length measurement sensor can measure and acquire the length information of the yarn feeding bobbin from when the bobbin holding mechanism receives the yarn feeding bobbin until the bobbin holding mechanism turns to the target position.

  Thereby, since the yarn feeding bobbin is swung, the path of the yarn feeding bobbin can be made compact. Further, a supply error or a reception error of the yarn feeding bobbin can be detected by the length measuring sensor.

  The winding unit preferably has the following configuration. That is, the length measurement sensor includes a plurality of sensor elements that can detect the presence or absence of an object. The sensor element is disposed along the axial direction of the yarn feeding bobbin when passing through the length measurement sensor.

  Thereby, the length of the yarn feeding bobbin can be specifically acquired at least to some extent with a simple configuration in which sensor elements are arranged.

  In the winding unit, the length measurement sensor is an area sensor capable of detecting a portion where an object exists in a detection range, and the yarn supply bobbin is based on a ratio occupied by the yarn supply bobbin in the detection range. It is preferable to detect the length of.

  Thereby, since the length of the yarn feeding bobbin can be acquired more specifically, the alignment operation can be performed more reliably.

  According to a second aspect of the present invention, an automatic winder having the following configuration is provided. That is, the automatic winder includes the winding unit, a machine base control device, and an input unit. The machine control device controls a plurality of the winding units. The input unit is provided in at least one of the winding unit and the machine base control device, and can input information related to the yarn feeding bobbin. The length information acquisition unit is an input length acquisition unit that acquires the length information based on information input to the input unit. The control unit determines a start reference position, which is a position where the position detection unit waits in advance when performing alignment of the yarn feeding bobbin based on the length information acquired by the input length acquisition unit. Then, control for moving the position detection unit to the start reference position is performed.

  Thus, by moving the position detection unit to the start reference position determined based on the input content, it is possible to save the trouble of acquiring (measuring) the length of the yarn feeding bobbin each time the yarn feeding bobbin is supplied. it can. Moreover, it becomes easy to set the length of the yarn feeding bobbin collectively for each winding unit.

  The automatic winder preferably has the following configuration. That is, the automatic winder includes a unwinding assist device that assists in unwinding the yarn of the yarn supplying bobbin. The target position is the unwinding reference position of the unwinding assisting device. The unwinding assist device assists in unwinding the yarn of the yarn supplying bobbin by moving following the change of the chase portion which is the yarn layer end portion of the yarn supplying bobbin accompanying the progress of the winding operation of the package. The first auxiliary member is included. The position detection unit is a chase unit detection sensor that moves with the first auxiliary member during the unwinding operation and detects the chase unit. The control unit adjusts the position of the chase unit detection sensor based on the content acquired by the input length acquisition unit.

  Thereby, since a 1st auxiliary member moves with a chase part detection sensor, the separate control for adjusting the position of a 1st auxiliary member becomes unnecessary. Further, during the alignment operation (before the start of yarn unwinding), the position of the first auxiliary member is adjusted according to the length of the yarn supplying bobbin, thereby starting the yarn unwinding of the yarn supplying bobbin. The positional relationship between the yarn feeding bobbin and the first auxiliary member at the time can be improved. As a result, the yarn can be appropriately unwound.

  The winding unit preferably has the following configuration. That is, the unwinding assisting device includes a second auxiliary member that assists unwinding of the yarn of the yarn supplying bobbin on the downstream side in the winding direction of the yarn of the first auxiliary member. The control unit adjusts the position of the second auxiliary member based on the length information acquired by the input length acquisition unit.

  Thereby, not only the first auxiliary member but also the second auxiliary member can be moved to an appropriate position. Therefore, winding can be performed while maintaining the tension of the yarn unwound from the yarn supplying bobbin more appropriately.

  The automatic winder can be configured as follows. That is, the automatic winder includes the winding unit, a machine base control device, and an input unit. The machine control device controls a plurality of the winding units. The input unit is provided in at least one of the winding unit and the machine base control device, and can input information related to the length of the yarn feeding bobbin. The length information acquisition unit includes a first length information acquisition unit and a second length information acquisition unit. The first length information acquisition unit acquires the length information based on information input to the input unit. The second length information acquisition unit acquires the length information by measuring the supplied yarn feeding bobbin. The control unit is a start reference position, which is a position where the position detection unit waits in advance when performing alignment of the yarn feeding bobbin based on the length information acquired by the first length information acquisition unit. And the position detection based on the length information acquired by the second length information acquisition unit when the position detection unit of the start reference position determines that the yarn feeding bobbin cannot be detected. Control to move the part.

  As a result, the position detection unit detects the yarn feeding bobbin for most of the yarn feeding bobbins supplied by positioning the position detection unit at the start reference position based on the input content to the input unit. Can do. On the other hand, when a yarn feeding bobbin having a different length from the normal one is supplied, the yarn feeding bobbin can be detected without any problem by moving the position detection unit to a position corresponding to the yarn feeding bobbin. .

  According to a third aspect of the present invention, in a yarn feeding bobbin alignment method by a winding unit for winding a yarn unwound from a yarn feeding bobbin to form a package, a method including the following steps is provided. . That is, this yarn feeding bobbin alignment method includes a first step, a second step, a third step, and a fourth step. In the first step, the yarn feeding bobbin is moved so as to pass through a position detection unit capable of detecting the position of the yarn feeding bobbin. The second step moves the position detection unit when the position detection unit cannot detect the yarn feeding bobbin. In the third step, the yarn supplying bobbin is moved again toward the position detecting unit, and the yarn supplying bobbin is detected by the position detecting unit to determine a start reference position for alignment of the yarn supplying bobbin. To do. In the fourth step, the yarn feeding bobbin is moved from the determined starting reference position by a preset distance, and the yarn feeding bobbin is adjusted to the target position where the yarn feeding bobbin should be held. .

  Thus, for example, even when a yarn feeding bobbin in which a yarn is wound around a short core pipe is supplied and the position detection unit cannot detect the yarn feeding bobbin, the yarn feeding bobbin is detected by moving the position detection unit. be able to. Therefore, the alignment operation can be performed reliably.

  According to a fourth aspect of the present invention, in a yarn feeding bobbin alignment method by a winding unit that winds a yarn unwound from a yarn feeding bobbin to form a package, a method including the following steps is provided. . That is, this yarn feeding bobbin alignment method includes a first step, a second step, a third step, and a fourth step. The first step acquires length information, which is information related to the length of the yarn feeding bobbin in the axial direction, by measuring the length measurement sensor. In the second step, a position detection unit capable of detecting the position of the yarn feeding bobbin is moved based on the length information acquired by the length measurement sensor. In the third step, the yarn supplying bobbin is moved toward the position detecting unit, and the yarn supplying bobbin is detected by the position detecting unit to determine a starting reference position for alignment of the yarn supplying bobbin. . In the fourth step, an adjustment distance indicating a distance from the start reference position to a target position that is a position where the yarn feeding bobbin should be held is acquired based on the position of the position detection unit and the position of the yarn feeding bobbin. Then, the yarn feeding bobbin is moved from the start reference position by a distance based on the adjustment distance, and the yarn feeding bobbin is adjusted to the target position.

  As a result, the length of the yarn feeding bobbin can be specifically detected at least to some extent, so that the position detector can be moved to a position where the yarn feeding bobbin can be reliably detected. Therefore, the yarn feeding bobbin positioning operation can be performed reliably and accurately.

  According to a fifth aspect of the present invention, a plurality of winding units that wind a yarn unwound from a yarn supplying bobbin to form a package, and a machine base control unit that controls the plurality of winding units, In a method for aligning a yarn feeding bobbin by an automatic winder provided, a method including the following steps is provided. That is, this yarn feeding bobbin alignment method includes a first step, a second step, a third step, and a fourth step. In the first step, the axial length of the yarn feeding bobbin is based on the information relating to the yarn feeding bobbin input to the input unit provided in at least one of the winding unit and the machine base control device. Get length information which is information. In the second step, based on the acquired length information, a start reference position is determined, which is a position where the position detection unit waits in advance when aligning the yarn feeding bobbin, and the position detection unit is Move to the start reference position. In the third step, the yarn supplying bobbin is moved toward the position detecting unit, the yarn supplying bobbin is detected by the position detecting unit, and a starting reference position for positioning the yarn supplying bobbin is determined. . In the fourth step, an adjustment distance indicating a distance from the start reference position to a target position that is a position where the yarn feeding bobbin should be held is acquired based on the position of the position detection unit and the position of the yarn feeding bobbin. Then, the yarn feeding bobbin is moved from the start reference position by a distance based on the adjustment distance, and the yarn feeding bobbin is adjusted to the target position.

  Thus, by moving the position detection unit to the position determined based on the input content, it is possible to save the trouble of detecting (acquiring) the length of the yarn supplying bobbin each time the yarn supplying bobbin is supplied. Moreover, the length of the yarn feeding bobbin can be collectively set for each winding unit by inputting information related to the length of the yarn feeding bobbin to an input unit provided in the machine base control device.

  The winding unit preferably has the following configuration. That is, the winding unit includes a bobbin holding mechanism, a position detection unit, and a control unit. The bobbin holding mechanism holds a yarn feeding bobbin. The position detection unit detects a yarn feeding bobbin held by the bobbin holding mechanism. The controller controls the bobbin holding mechanism to position it at an optimum position.

  As a result, the yarn feeding bobbin can be positioned at an optimum position for the winding unit to perform the winding operation, so that the yarn feeding bobbin can be unwound without causing problems such as yarn breakage. Can do.

  The winding unit preferably includes a length information acquisition unit that acquires length information of the yarn feeding bobbin in order to move the position detection unit.

  As a result, the length information of the bobbin is acquired and the position detection unit is moved accordingly, so that the position detection unit can reliably detect the yarn feeding bobbin held by the bobbin holding mechanism.

1 is an external perspective view showing an overall configuration of an automatic winder according to an embodiment of the present invention. The typical side view of a winder unit. The block diagram which shows the main structures of a winder unit. The expansion perspective view which shows the structure of a unwinding assistance apparatus. The perspective view which shows the structure of a bobbin set part. The side view which shows the shape of the cam with which a power transmission part is provided. The side view which shows the structure of an adjustment part when a main core member exists in a receiving attitude | position. The side view which shows the structure of an adjustment part when a main core member exists in an unwinding attitude | position. The side view which shows the structure of the adjustment part when a main core member exists in a discharge attitude | position. The flowchart which shows the process which a winder unit performs when a yarn feeding bobbin is supplied. The side view explaining the first half part of the alignment operation | movement of a yarn feeding bobbin. The side view explaining the latter half part of position alignment operation | movement of a yarn feeding bobbin. The side view explaining the first half part of the alignment operation | movement of a yarn feeding bobbin when a yarn feeding bobbin is short. The side view explaining the latter half part of position alignment operation | movement of a yarn feeding bobbin when a yarn feeding bobbin is short. The flowchart which shows the process which a winder unit performs in the 1st modification when a yarn supply bobbin is supplied. The side view explaining the front half part of position alignment operation | movement of the yarn feeding bobbin in a 1st modification. The side view explaining the latter half part of position alignment operation | movement of the yarn feeding bobbin in a 1st modification. The side view which shows the example which used the area sensor as a length measurement sensor. The figure which shows the example of the length measurement sensor arrange | positioned at a bobbin supply apparatus.

  Next, embodiments of the present invention will be described with reference to the drawings. First, the outline | summary of the automatic winder 1 of this embodiment is demonstrated with reference to FIG. FIG. 1 is an external perspective view of an automatic winder 1 according to an embodiment of the present invention. In the following description, the front side of the winder unit 4 may be simply referred to as “front side”, and the back side of the winder unit 4 may be simply referred to as “back side”.

  The automatic winder 1 according to this embodiment includes a plurality of winder units (winding units) 4 arranged side by side, and a machine base control device 7 arranged at one end of the plurality of winder units 4 in the arranged direction. ing.

  Each winder unit 4 includes a unit frame 5 provided on the left and right sides in a front view, and a winding unit body 6 provided on the side of the unit frame 5. Inside the unit frame 5, a unit control unit 50 (control unit, see FIG. 3) for controlling each part of the winding unit main body 6 is arranged. The unit controller 50 includes a storage unit 52 that can store various types of information. Details of the contents stored in the storage unit 52 will be described later.

  The unit frame 5 also includes a unit input unit (input unit) 18 that can input settings of the winding unit body 6 and the like, and a unit display unit 19 that can display the status of the winding operation. The unit input unit 18 can be configured as a key and a button, for example.

  Since the machine control device 7 is configured to be communicable with the unit controller 50, the machine control device 7 can centrally manage the operations of the plurality of winder units 4. The machine base control device 7 includes a machine base input unit (input unit) 8 and a machine base display unit 9. The operator performs various settings for each winder unit 4 by appropriately operating the machine base input unit 8 (for example, setting of the type of the yarn feeding bobbin 21 used for the winding operation of each winder unit 4). be able to. Further, the operator can confirm the winding work status of each winder unit 4 by looking at the display on the machine base display unit 9.

  Next, the winder unit 4 will be described in detail with reference to FIGS. FIG. 2 is a schematic side view of the winder unit 4. FIG. 3 is a block diagram showing a main configuration of the winder unit 4.

  The winder unit 4 is a device for forming a package 29 by winding the yarn of the yarn supplying bobbin 21 around the winding bobbin 22.

  As shown in FIGS. 1 and 2, a bobbin supply device 60 for an operator to supply the yarn feeding bobbin 21 is disposed on the front side of the winder unit 4. The bobbin supply device 60 is installed below the magazine can 62, a magazine holder 61 that extends from the lower part of the winder unit 4 upward in the front direction, a magazine can 62 that is attached to the tip of the magazine holder 61, and the magazine can 62. A bobbin guide portion 64 and an opening / closing portion 68 are provided.

  The magazine can 62 is formed with a plurality of storage holes arranged in a circle, and the yarn feeding bobbin 21 can be set in an inclined posture in each storage hole. Further, the magazine can 62 is configured to be intermittently rotationally driven by a motor (not shown). The predetermined yarn feeding bobbin 21 can be dropped obliquely downward by intermittent driving of the magazine can 62 and opening / closing operation of a control valve (not shown) provided in the magazine can 62.

  The bobbin guide unit 64 is configured to guide the bobbin setting unit 10 by sliding the yarn feeding bobbin 21 falling from the magazine can 62 obliquely. The detailed configuration of the bobbin setting unit 10 will be described later.

  The opening / closing part 68 includes a pair of opening / closing members 68a, 68b that can swing between the front side (right side in FIG. 2) and the back side (left side in FIG. 2), and the pair of opening / closing members 68a, 68b. However, it is possible to switch between a closed state (the state shown in FIG. 2) and an open state. When the opening / closing portion 68 is closed, the inner surface of the opening / closing portion 68 constitutes a part of the bobbin guide portion 64. That is, the inner surface of the opening / closing portion 68 contacts the yarn feeding bobbin 21 falling from the magazine can 62 and guides the yarn feeding bobbin 21 to the bobbin setting portion 10 obliquely below. On the other hand, in a state where the opening / closing portion 68 is open, the yarn feeding bobbin 21 that has been wound up and has not been wound on the yarn can be discharged to the front side. Since the conveyor 3 (see FIG. 1) is disposed on the front side of the opening / closing unit 68, the automatic winder 1 uses the conveyor 3 to feed the yarn feeding bobbin 21 discharged from the opening / closing unit 68. It can be conveyed to a yarn feeding bobbin collection box (not shown) arranged at the conveyance direction end of the conveyor 3.

  Moreover, the bobbin holding part 110 with which the bobbin setting part 10 is provided is comprised so that rocking | fluctuation to the front side and the back side is possible when the stepping motor 100 shown in FIG.2 and FIG.3 drives. The stepping motor 100 is controlled by a stepping motor control unit 102 as shown in FIG.

  The bobbin holding part 110 can receive the yarn feeding bobbin 21 guided by the bobbin guide part 64 by rotating from the back side to the front side. Then, the bobbin holding part 110 can turn the received yarn feeding bobbin 21 into a substantially upright state by rotating to the back side. The details of the mechanism for swinging the bobbin holding unit 110 by driving the stepping motor 100 and the control performed by the stepping motor control unit 102 will be described later.

  Then, the yarn 20 is unwound from the yarn supplying bobbin 21 set in the bobbin holding unit 110 of the bobbin setting unit 10 as described above and wound by the winding unit 16. As shown in FIG. 2, the winding unit 16 includes a cradle 23 configured to be capable of mounting the winding bobbin 22, a traverse drum 24 for traversing the yarn 20 and driving the winding bobbin 22. It is equipped with.

  Further, the winding unit body 6 includes various devices in a yarn traveling path between the bobbin setting unit 10 and the traverse drum 24. Specifically, as the main devices arranged in the yarn traveling path, the yarn curb generation preventing device 11, the unwinding assisting device 12, and the bobbin set unit 10 side in order from the traverse drum 24 side, A tension applying device 13, a yarn joining device 14, and a clearer (yarn quality measuring device) 15 are arranged.

  Hereinafter, the configuration of the unwinding assisting device 12 will be described with reference to FIGS. 3 and 4. FIG. 4 is an enlarged perspective view showing the configuration of the unwinding assisting device 12.

  As shown in FIGS. 3 and 4, the unraveling auxiliary device 12 includes a fixed member 71, a movable member (first auxiliary member) 72, a lifting member 73, and a chase detection sensor (position detection unit, length information). An acquisition unit) 74 and an elevating member driving unit 75 (see FIG. 3).

  The fixing member 71 is fixed to the unit frame 5 via an appropriate member. The fixing member 71 is formed in a cylindrical shape, and a throttle part (not shown) for controlling the balloon is formed in the lower part thereof. The movable member 72 is formed in a cylindrical shape and is disposed so as to cover the outside of the fixed member 71. In the following description, the central axis of the movable member 72 configured in a cylindrical shape and a line obtained by extending the central axis are referred to as a virtual line L1.

  The elevating member 73 is formed integrally with the movable member 72. The elevating member 73 is configured to be movable in the vertical direction when driven by an elevating member driving unit 75 configured by a stepping motor or an air cylinder. Thereby, the movable member 72 and the raising / lowering member 73 can be integrally moved to a perpendicular direction. As shown in FIG. 3, the elevating member driving unit 75 is controlled by the unit control unit 50. Thereby, the unit control part 50 can acquire the height of the raising / lowering member drive part 75 (as a result, the chase part detection sensor 74) based on own control content. The unit control unit 50 stores the height of the chase unit detection sensor 74 in the storage unit 52.

  In the present embodiment, the fixed member 71 is configured to be immovable, but a member having a cylindrical portion such as the fixed member 71 is attached to the elevating member 73 instead of the unit frame 5, and the movable member 72 and the elevating member 73 are attached. In addition, the member can be moved. Further, the member may be configured to move in the vertical direction by driving of a driving source other than the lifting member driving unit 75, and may be moved independently of the movable member 72 and the lifting member 73.

  The elevating member 73 includes a chase portion detection sensor 74 for detecting the chase portion 21b (see FIG. 4) of the yarn feeding bobbin 21. The chase portion 21b is a yarn layer end portion of the yarn feeding bobbin 21 as the winding operation proceeds. Further, the chase portion detection sensor 74 is configured as a transmissive photosensor having a light projecting portion 74a and a light receiving portion 74b. The detection signal detected by the chase detection sensor 74 is input to the unit controller 50 as shown in FIG.

  As described above, the chase portion detection sensor 74 is attached to the elevating member 73 formed integrally with the movable member 72. Therefore, the elevating member drive unit 75 functions as a common drive source for the movable member 72 and the chase detection sensor 74. As a result, the simplification of the configuration is realized.

  With this configuration, the unit controller 50 drives the elevating member drive unit 75 based on the detection signal of the chase unit detection sensor 74 and moves the elevating member 73 in the vertical direction, thereby moving the elevating member 73 to a predetermined distance from the chase unit 21b. The movable member 72 can be positioned. Then, as the yarn feeding bobbin 21 is unwound and the position of the chase portion 21b is lowered, the elevating member driving portion 75 is driven to lower the elevating member 73, so that the distance between the chase portion 21b and the movable member 72 is always increased. Can be constant. Thereby, when the yarn feeding bobbin 21 is unwound, the balloon generated at the position where the yarn is dissociated from the chase portion 21b can be appropriately regulated, and the tension of the yarn unwound from the yarn feeding bobbin 21 is kept constant. Winding work can be performed while keeping

  In order to appropriately exert the function of the unwinding assisting device 12 as described above, the yarn feeding bobbin 21 (specifically, the central axis of the yarn feeding bobbin 21) is positioned on the virtual line L1 (target position, solution (舒 reference position) must be adjusted. Details of control for adjusting the position of the yarn feeding bobbin 21 will be described later.

  On the back side of the unwinding assisting device 12, a yarn crimping prevention device 11 for preventing the occurrence of yarn crimping is disposed. Here, the yarn curling is one of the problems that occur in the yarn, and is a state in which the yarn is curled and entangled in a spiral shape. The yarn crimping prevention device 11 includes a brush arm 11a and a brush portion 11b formed at the tip of the brush arm 11a. The brush arm 11 a is configured to be rotatable, and the brush portion 11 b can be brought into contact with the upper end portion of the yarn feeding bobbin 21 by being rotated. As a result, an appropriate tension can be applied to the yarn 20 at the time of a yarn splicing operation, which will be described later, and the occurrence of yarn crimping can be prevented.

  The tension applying device 13 applies a predetermined tension to the traveling yarn 20. The tension applying device 13 of this embodiment is configured as a gate type in which movable comb teeth are arranged with respect to fixed comb teeth. The movable comb teeth are configured to be rotatable by a rotary solenoid so that the comb teeth are in a meshed state or a released state.

  Further, a lower thread detection sensor 31 is disposed between the unwinding assisting device 12 and the tension applying device 13. The lower thread detection sensor 31 is configured to be able to detect whether or not the thread is traveling at the position where it is disposed.

  The clearer 15 is configured to detect a yarn defect (yarn defect) such as a slab by monitoring the thickness of the yarn 20. Further, a cutter 39 for cutting the yarn 20 immediately when the clearer 15 detects a yarn defect is disposed upstream (downward) of the yarn path from the clearer 15.

  The yarn joining device 14 detects when the clearer 15 detects a yarn defect and cuts the yarn with the cutter 39, when the yarn being unwound from the yarn feeding bobbin 21 is broken, or when the yarn feeding bobbin 21 is replaced. For example, the lower thread, which is the thread on the yarn feeding bobbin 21 side, and the upper thread, which is the thread on the package 29 side, are spliced together. As such a yarn splicing device 14, a device using a fluid such as compressed air or a mechanical device can be used.

  On the lower side and upper side of the yarn joining device 14, a lower yarn guide pipe 25 that catches and guides the lower yarn on the yarn feeding bobbin 21 side, and an upper yarn guide pipe 26 that catches and guides the upper yarn on the package 29 side. And are provided. A suction port 32 is formed at the tip of the lower thread guide pipe 25, and a suction mouth 34 is provided at the tip of the upper thread guide pipe 26. Appropriate negative pressure sources are connected to the lower thread guide pipe 25 and the upper thread guide pipe 26, respectively, and a suction force can be generated in the suction port 32 and the suction mouth 34.

  With this configuration, when replacing the yarn feeding bobbin 21, the suction port 32 of the lower thread guide pipe 25 rotates downward to suck and catch the lower thread, and then rotates upward about the shaft 33. As a result, the lower thread is guided to the yarn joining device 14. At almost the same time, the winder unit 4 rotates the upper thread guide pipe 26 upward from the position shown in FIG. 2 about the shaft 35 and reversely rotates the package 29 to unwind the package 29. Is captured by the suction mouse 34. Subsequently, the winder unit 4 guides the upper thread to the yarn joining device 14 by rotating the upper thread guide pipe 26 downward about the shaft 35. In the yarn joining device 14, the yarn joining of the lower yarn and the upper yarn is performed.

  Further, a notification lamp 56 is arranged on the unit frame 5 as shown in FIGS. The notification lamp 56 is connected to the unit controller 50 as shown in FIG. 3, and can notify the operator of an abnormality occurring in each part of the winding unit body 6. The notification lamp 56 is configured to notify the operator of the occurrence of an abnormality using light, but may be configured to notify the operator with a buzzer or the like instead of this configuration.

  With the above configuration, each winder unit 4 of the automatic winder 1 can wind the yarn 20 unwound from the yarn feeding bobbin 21 onto the winding bobbin 22 to form a package 29 having a predetermined length.

  Next, the bobbin setting unit 10 will be described in detail with reference to FIGS. FIG. 5 is a perspective view showing the configuration of the bobbin setting unit 10. FIG. 6 is a side view showing the shape of the cam provided in the power transmission unit 120. FIG. 7 is a side view showing the configuration of the power transmission unit 120 when the main core member 80 is in the receiving posture. FIG. 8 is a side view showing the configuration of the power transmission unit 120 when the main core member 80 is in the unwinding posture. FIG. 9 is a side view showing the configuration of the power transmission unit 120 when the main core member 80 is in the discharging posture.

  As described above, the bobbin setting unit 10 discharges the bobbin holding unit 110 for holding the supplied yarn supplying bobbin 21 and the yarn supplying bobbin 21 (core tube 21a) after the yarn has been unwound. A jump plate 40 and a drive unit 200 that operates the bobbin holding unit 110 and the jump plate 40 are provided. The drive unit 200 includes a stepping motor 100 and a power transmission unit 120 that transmits the power of the stepping motor 100 to the spring plate 40 and the bobbin holding unit 110.

  The bobbin holding portion 110 can swing as shown in FIGS. 7 to 9 to change the position of the unwinding side end portion of the yarn feeding bobbin 21. Further, the bobbin holding part 110 includes a main core member (regulating member) 80 and an auxiliary core member (holding member) 90. As shown in FIG. 7, the main core member 80 and the auxiliary core member 90 are closed when the yarn feeding bobbin 21 is supplied, and enter the inside of the core tube 21a. In this state, the auxiliary core member 90 rotates in a direction away from the main core member 80, whereby the yarn feeding bobbin 21 can be held from the inside (see FIG. 8). Further, in a state where the bobbin holding part 110 is released from the bobbin holding part 110, the spring plate 40 is rotated to push out the bottom part of the core tube 21a and remove it from the main core member 80 and the auxiliary core member 90. The yarn feeding bobbin 21 can be discharged (see FIG. 9).

  Next, the power transmission unit 120 will be described. The power transmission unit 120 drives the main core member 80 and the auxiliary core member 90 constituting the bobbin holding unit 110 and the jump plate 40 while interlocking with each other.

  First, a configuration for driving the main core member 80 will be described. The power transmission unit 120 is configured to oscillate the main core member 80, and includes a main core member drive cam 81, a bearing 82, a swing arm 83, a positioning arm 84 a, a contact arm 84 b, and a transmission shaft 85. And a pressing spring 86. The power transmission unit 120 includes a transmission belt 103, a pulley 104, and a cam shaft 105 as a configuration for transmitting the power of the stepping motor 100 to the main core member drive cam 81 and the like.

  The pulley 104 is fixed to the cam shaft 105, and the pulley 104 is connected to the output shaft of the stepping motor 100 via the transmission belt 103. Although the transmission belt 103 is simply illustrated in FIG. 5, the transmission belt 103 is configured as a toothed timing belt and can transmit the rotation of the output shaft of the stepping motor 100 to the cam shaft 105 without slipping.

  An origin sensor 101 (not shown in FIG. 5) is attached to the pulley 104. The origin sensor 101 sends a detection signal when the pulley 104 or the camshaft 105 is in a predetermined rotational phase. It is configured. The rotation state when the origin sensor 101 transmits a detection signal is the origin of the stepping motor 100, and the rotation control of the stepping motor 100 is performed based on this origin.

  The main core member drive cam 81 is fixed to the cam shaft 105 and rotates integrally with the cam shaft 105. A swing arm 83 is disposed on the back side of the main core member drive cam 81, and a rotatable bearing 82 is attached to a middle portion of the swing arm 83. The bearing 82 is configured to be able to rotate appropriately while contacting the outer peripheral surface of the main core member drive cam 81.

  The tip of the swing arm 83 is connected to the lower end of a positioning arm 84a supported so as to be swingable at an appropriate position of the power transmission unit 120 via a bar-shaped link. A rotatable rotating member 87 is supported on the upper end portion of the positioning arm 84a.

  A contact arm 84b is disposed on the front side of the positioning arm 84a. The tip of the contact arm 84b is configured to be able to contact the rotating member 87 attached to the positioning arm 84a. One end of the transmission shaft 85 is fixed to the base portion of the contact arm 84 b, and the other end of the transmission shaft 85 is fixed to the main core member 80. Accordingly, the main core member 80 rotates integrally with the contact arm 84b. Further, a torsion coil spring-like pressing spring 86 is attached to the contact arm 84b, and urges the contact arm 84b in the direction of the arrow in FIG.

  With the above configuration, since the elastic force of the pressing spring 86 acts on the contact arm 84b, the protruding portion contacts the rotating member 87 and pushes the positioning arm 84a. Furthermore, since the lower end portion of the positioning arm 84a pulls the swing arm 83 through the link, the bearing 82 of the swing arm 83 is pressed against the main core member drive cam 81. Thus, the pressing spring 86 makes the main core member drive cam 81 and the bearing 82 contact, and generates a spring force for bringing the contact arm 84b into contact with the positioning arm 84a.

  In this state, when the main core member driving cam 81 rotates and the peripheral edge portion (bulging portion described later) of the main core member driving cam 81 presses the bearing 82, the swing arm 83 rotates in a direction away from the cam shaft 105. The tip of the swing arm 83 pulls the lower end of the positioning arm 84a through the link. As a result, the rotation member 87 at the upper end of the positioning arm 84a pushes the contact arm 84b, so that the main core member 80 can be rotated together with the contact arm 84b to the front side (see FIG. 8).

  Next, a configuration for driving the auxiliary core member 90 will be described. The power transmission unit 120 is configured to transmit the power of the stepping motor 100 to the auxiliary core member 90, and includes an auxiliary core member drive cam 91, a bearing 92, a swing arm 93, a transmission arm 94, and a transmission shaft 95. The holding spring 96 is provided.

  The auxiliary core member drive cam 91 is fixed to the cam shaft 105 in the same manner as the main core member drive cam 81. A swing arm 93 is disposed on the back side of the auxiliary core member drive cam 91, and a rotatable bearing 92 is attached to a middle portion of the swing arm 93. The bearing 92 is configured to be able to rotate as appropriate while in contact with the outer peripheral surface of the auxiliary core member drive cam 91.

  The tip of the swing arm 93 is connected to the lower end of a transmission arm 94 supported so as to be swingable at an appropriate position of the power transmission unit 120 via a bar-shaped link. One end of a transmission shaft 95 is attached to the base of the transmission arm 94, and the other end of the transmission shaft 95 is fixed to the auxiliary core member 90. Accordingly, the auxiliary core member 90 rotates integrally with the transmission arm 94. Further, a torsion coil spring-like holding spring 96 is attached to the transmission arm 94, and the transmission arm 94 is urged in the direction of the dotted line arrow in FIG.

  With the above-described configuration, the holding spring 96 applies the spring force in the direction in which the auxiliary core member 90 rotates to the back side (the direction away from the main core member 80) via the transmission arm 94 and the transmission shaft 95. 90. At the same time, the distal end portion of the transmission arm 94 to which the elastic force of the holding spring 96 acts pulls the swing arm 93 through the link, so that the bearing 92 of the swing arm 93 is pressed against the auxiliary core member drive cam 91. In this manner, the holding spring 96 generates a spring force for bringing the auxiliary core member drive cam 91 and the bearing 92 into contact with each other.

  In this state, when the auxiliary core member drive cam 91 rotates and the peripheral edge portion (a bulge portion described later) of the auxiliary core member drive cam 91 presses the bearing 92, the swing arm 93 rotates in a direction away from the cam shaft 105. The tip of the swing arm 93 pulls the lower end of the transmission arm 94 through the link. As a result, the auxiliary core member 90 can be rotated to the front side (direction approaching the main core member 80).

  When the auxiliary core member 90 is rotated to the front side beyond a predetermined angle, the auxiliary core member 90 comes into contact with an unillustrated portion of the main core member 80, and thereafter, the auxiliary core member 90 is the main core member 90. The core member 80 is configured to rotate integrally with the core member 80 being pushed (in this case, the distal end portion of the contact arm 84b and the rotating member 87 are appropriately separated). That is, when the auxiliary core member 90 is rotated to the front side beyond a predetermined angle (for example, the state shown in FIG. 7), the main core member 80 is not the main core member driving cam 81 but the auxiliary core member driving cam 91. It will be driven by.

  Next, a configuration for driving the spring plate 40 will be described. The power transmission unit 120 is configured to transmit the power of the stepping motor 100 to the jumping plate 40, and includes a jumping plate driving cam 41, a bearing 42, a swing arm 43, a transmission arm 44, a transmission shaft 45, and a return shaft. And a spring 46.

  The jump plate drive cam 41 is fixed to the cam shaft 105 in the same manner as the auxiliary core member drive cam 91 and the main core member drive cam 81. A swing arm 43 is disposed on the back side of the jump plate drive cam 41, and a rotatable bearing 42 is attached to a middle portion of the swing arm 43. The bearing 42 is configured to be able to rotate as appropriate while in contact with the outer peripheral surface of the spring plate drive cam 41.

  The tip of the swing arm 43 is connected to the lower end of the transmission arm 44 supported so as to be swingable at an appropriate position of the power transmission unit 120 via a bar-shaped link. One end of the transmission shaft 45 is fixed to the base portion of the transmission arm 44, and the other end of the transmission shaft 45 is fixed to the spring plate 40. Accordingly, the spring plate 40 rotates integrally with the transmission arm 44. Further, a torsion coil spring-like return spring 46 is attached to the transmission arm 44 to urge the transmission arm 44 in the direction of the arrow in FIG.

  With the above configuration, the distal end portion of the transmission arm 44 to which the elastic force of the return spring 46 acts pulls the swing arm 43 through the link, so that the bearing 42 of the swing arm 43 presses against the jump plate drive cam 41. It is done. In this way, the return spring 46 generates a spring force for bringing the spring plate drive cam 41 and the bearing 42 into contact with each other.

  In this state, when the jump plate drive cam 41 rotates and the peripheral portion (bulge portion described later) of the jump plate drive cam 41 presses the bearing 42, the swing arm 43 moves in a direction away from the cam shaft 105, and the swing plate drive cam 41 moves. The tip of the moving arm 43 pulls the lower end of the transmission arm 44 through the link. As a result, the jump plate 40 can be flipped up to the front side (see FIG. 9).

  Next, a configuration in which the winder unit 4 receives the yarn feeding bobbin 21, holds the yarn feeding bobbin 21 at a predetermined position where the yarn 20 is unwound, and discharges it will be described. As described above, in the present embodiment, the jump plate drive cam 41, the main core member drive cam 81, and the auxiliary core member drive cam 91 are configured as the coaxial cam mechanism 130 fixed to the common cam shaft 105. The two cams 41, 81, 91 are integrally driven. Further, as shown in FIG. 6, the three cams 41, 81, 91 are respectively formed with bulges, and the postures of the jump plate 40, the main core member 80, and the auxiliary core member 90 are changed by the bulges. Can do.

  Although the bulge part (holding cam operation area) of the auxiliary core member drive cam 91 and the bulge part (discharge cam operation area) of the jump plate drive cam 41 are gently formed, the bulge part (regulation) of the main core member drive cam 81 is defined. The cam operation region) is formed slightly sharper. In addition, the bulging portion of the auxiliary core member driving cam 91 and the bulging portion of the jump plate driving cam 41 are formed in substantially the same phase, while the bulging portion of the main core member driving cam 81 is formed in a phase that is substantially 180 ° different from them. Has been.

  In the above configuration, when the yarn feeding bobbin 21 is received, the stepping motor 100 is appropriately driven to rotate the three cams 41, 81, 91, and the bearing 92 included in the swing arm 93 is used to drive the auxiliary core member. The cam 91 is brought into contact with a portion slightly passing the peak portion of the bulging portion, and the rotation of the cams 41, 81, 91 is stopped in this state. Thereby, as shown in FIG. 7, the auxiliary core member 90 is slightly tilted from the upright state to the front side. At this time, the bearing 42 of the swing arm 43 is in contact with the portion of the jump plate drive cam 41 that has passed through the bulge portion. Accordingly, the spring plate 40 is in a horizontal posture as shown in FIG.

  In this state, since the auxiliary core member 90 is rotated beyond a predetermined angle, the main core member 80 is also rotated to the front side in a form pushed by the auxiliary core member 90 as described above. As in the auxiliary core member 90, the posture is slightly tilted from the upright state to the front side. When the yarn feeding bobbin 21 is supplied from the magazine holding unit 61 in this state, the bobbin holding unit 110 (the main core member 80 and the auxiliary core member 90) enters the core tube 21a. In this specification, the posture of the main core member 80 when the yarn feeding bobbin 21 is received (the posture in FIG. 7) is referred to as a receiving posture.

  When the yarn is unwound from the received yarn feeding bobbin 21, the stepping motor 100 is driven again to rotate the cam shaft 105 in the direction indicated by the arrow in FIG. As a result, the bearing 92 included in the swing arm 93 passes completely through the bulge portion of the auxiliary core member drive cam 91 and comes into contact with the non-bulge portion. Further, the bearing 82 included in the swing arm 83 comes into contact with the bulging portion of the main core member drive cam 81.

  Along with this, as shown in FIG. 8, the auxiliary core member 90 rotates so as to be slightly tilted to the back side. Further, as described above, the main core member 80 that has been pushed to the front side by the auxiliary core member 90 also rotates to the back side in the same manner as the auxiliary core member 90 rotates to the back side. Eventually, when the contact arm 84b comes into contact with the rotating member 87 of the positioning arm 84a, the rotation of the main core member 80 is stopped. Thereafter, only the auxiliary core member 90 is rotated to the back side by the spring force of the holding spring 96. It will be. That is, since the auxiliary core member 90 is displaced so as to be relatively away from the main core member 80, the core tube 21a of the yarn supplying bobbin 21 can be held from the inside by the bobbin holding portion 110.

  At this time, the posture in which the rotation of the main core member 80 is stopped is determined by the position of the rotating member 87 of the positioning arm 84a. Further, since the positioning arm 84a is connected to the swing arm 83 via a link, the posture of the main core member 80 is such that the bearing 82 of the swing arm 83 is in the bulge portion of the main core member drive cam 81. It can be changed depending on which part is in contact (whether it is in contact with the rising part of the bulging part or the peak part). In other words, the posture of the main core member 80 can be adjusted by changing the rotational phase of the main core member drive cam 81. Even when the posture of the main core member 80 is changed in this way, the auxiliary core member 90 can maintain the holding state of the yarn feeding bobbin 21 without any problem by the elastic force of the holding spring 96.

  In this specification, the posture of the main core member 80 when the yarn feeding bobbin 21 is unwound is referred to as the unwinding posture. Further, the origin sensor 101 detects the rotational phase of the pulley 104 when the main core member 80 is in an almost upright posture as shown in FIG. 8, and this state is used in the rotation control of the stepping motor 100. It is set to be the origin. Since the unwinding posture of the main core member 80 changes depending on the type of the yarn feeding bobbin 21, the origin detected by the origin sensor 101 does not always match the unwinding posture.

  Next, when discharging the yarn feeding bobbin 21, the stepping motor 100 is appropriately driven to rotate the three cams 41, 81, 91. As a result, the bearings 42 and 92 of the swing arms 43 and 93 come into contact with the bulging portions of the jump plate driving cam 41 and the auxiliary core member driving cam 91. Therefore, as shown in FIG. 9, the jump plate 40 is largely rotated to the front side. Further, in conjunction with this, the auxiliary core member 90 rotates to the front side to release the holding of the yarn feeding bobbin 21, and the auxiliary core member 90 greatly pushes the main core member 80 toward the front side. Rotate. Thereby, the spring board 40 pushes up the lower end of the core tube 21a of the yarn supplying bobbin 21, and the yarn supplying bobbin 21 can be discharged. In the present specification, the posture of the main core member 80 when the yarn feeding bobbin 21 is discharged is referred to as a discharging posture.

  As described above, in the present embodiment, the yarn feeding bobbin 21 is received and held in the unwinding posture (and the unwinding posture) only by driving the stepping motor 100 as a single drive source. Adjustment) and the yarn feeding bobbin 21 can be discharged.

  Next, referring to FIG. 10 to FIG. 14, the flow from when the yarn feeding bobbin 21 is supplied to the bobbin setting unit 10 until winding of the yarn 20 is started, particularly the positioning operation of the yarn feeding bobbin 21. Will be described. FIG. 10 is a flowchart showing processing performed by the winder unit 4 when the yarn supplying bobbin is supplied. FIGS. 11 to 14 are side views for explaining the alignment operation of the yarn supplying bobbin 21. Note that the processing shown in this flowchart and the following flowchart is an example, and the effect of the present invention may be obtained even when the processing content is changed or the processing order is changed.

  The stepping motor control unit 102 drives the stepping motor 100 to move the main core member 80 to the receiving posture in advance. When the unit controller 50 receives an instruction to start winding the yarn 20, the unit controller 50 causes the bobbin supply device 60 to supply the yarn feeding bobbin 21 (S101). The yarn feeding bobbin 21 supplied from the bobbin supply device 60 is, as shown in FIG. 11A, by a bobbin holding portion 110 (specifically, the main core member 80 and the auxiliary core member 90 that have been waiting in the receiving posture). Received. Then, the stepping motor control unit 102 rotates the bobbin holding unit 110 to the back side (S102).

  In the winder unit 4 of the present embodiment, the axial length of the core tube 21a of the yarn supplying bobbin 21 (hereinafter simply referred to as the length of the yarn supplying bobbin 21) when the bobbin holding portion 110 is rotated to the back side. Different processes are performed depending on the situation. In the present embodiment, the unit controller 50 determines whether the yarn feeding bobbin 21 is longer than a predetermined length based on the detection result of the chase detection sensor 74 (S103). Therefore, the chase part detection sensor 74 in this embodiment functions as a length information acquisition part. Here, the predetermined length corresponds to the minimum length of the core tube 21 a that the yarn feeding bobbin 21 can detect by the chase portion detection sensor 74.

  Specifically, when the chase part detection sensor 74 detects the yarn feeding bobbin 21 when the bobbin holding part 110 is rotated to the back side, the yarn feeding bobbin 21 crosses the detection range of the chase part detection sensor 74. (See FIG. 11A). Therefore, it can be determined that the length of the yarn feeding bobbin 21 is equal to or longer than a predetermined length. On the other hand, when the chase part detection sensor 74 does not detect the yarn feeding bobbin 21 when the bobbin holding part 110 is rotated to the back side, the yarn feeding bobbin 21 moves below the detection range of the chase part detection sensor 74. Passed (refer to the chain line in FIG. 13A). As a result, it can be determined that the length of the yarn feeding bobbin 21 is less than a predetermined length.

  First, a process that is performed when the length of the yarn feeding bobbin 21 is equal to or longer than a predetermined length in the determination of S103 will be described. In this case, the stepping motor control unit 102 rotates the bobbin holding unit 110 to the back side to once erect the yarn feeding bobbin 21 (S105). In the present embodiment, the yarn feeding bobbin 21 is made to stand upright by driving the stepping motor 100 until the origin sensor 101 detects the origin in S105. At this stage, since it is sufficient that the yarn feeding bobbin 21 is in an upright posture, strict posture control of the yarn feeding bobbin 21 is not performed.

  Further, the unit controller 50 brings the brush portion 11b of the yarn crimping prevention device 11 into contact with the upper end portion of the yarn feeding bobbin 21 (see FIG. 11 (b)), and applies an appropriate tension to the yarn 20. The occurrence of yarn crimping is prevented (S105). Thereafter, the stepping motor control unit 102 rotates the bobbin holding unit 110 so as to slightly tilt the yarn feeding bobbin 21 to the front side again (S106). Then, the unit controller 50 stops the rotation of the bobbin holding part 110 when the yarn feeding bobbin 21 is detected by the chase part detection sensor 74 (S107, FIG. 12 (a)).

  Further, the storage unit 52 provided in the unit control unit 50 is configured to unload the yarn feeding bobbin 21 when the stepping motor 100 is driven by how many pulses from the position where the yarn feeding bobbin 21 starts to be detected by the chase detection sensor 74. Information indicating whether the position can be adjusted (hereinafter referred to as adjustment distance) is stored. In the present embodiment, the yarn feeding bobbin 21 is moved by the above adjustment distance (specifically, returned in the reverse direction) with reference to the position where the yarn feeding bobbin 21 starts to be detected by the chase detection sensor 74. The yarn feeding bobbin 21 is adjusted to the unwinding reference position. Therefore, the position where the yarn feeding bobbin 21 starts to be detected by the chase portion detection sensor 74 may be referred to as “starting reference position” in this specification. As described above, the chase detection sensor 74 also functions as a position detection unit that detects the yarn supplying bobbin 21 in order to align the yarn supplying bobbin 21 with the unwinding reference position.

  Here, the adjustment distance stored in the storage unit 52 is associated with the type of the yarn feeding bobbin 21 to be used. In addition, the storage unit 52 stores the adjustment distance when the yarn feeding bobbin 21 is longer than a predetermined length and when it is not. For this reason, the unit controller 50 determines the adjustment distance to be adopted this time by performing the following processing. That is, the unit control unit 50 reads out the adjustment distances in the above two cases based on the type of the yarn feeding bobbin 21 to be used, which is input in advance by the operator. Of the two cases, the adjustment distance when the length of the yarn feeding bobbin 21 is greater than or equal to a predetermined length is determined as the adjustment distance used this time.

  Then, the unit control unit 50 outputs a predetermined number of pulses to the stepping motor 100 based on the determined adjustment distance, and rotates the bobbin holding unit 110 to the back side (S108, FIG. 12 (b)).

  Thereby, the center axis of the yarn supplying bobbin 21 and the center axis (virtual line L1) of the movable member 72 can be aligned (the yarn supplying bobbin 21 can be aligned with the unwinding reference position). Accordingly, since a balloon having an appropriate shape can be formed between the yarn feeding bobbin 21 and the unwinding assisting device 12, the tension of the yarn 20 unraveled from the yarn feeding bobbin 21 can be appropriately maintained. Winding can be performed.

  Next, processing performed when the length of the yarn feeding bobbin 21 is less than a predetermined length in the determination of S103 will be described. In this case, before or after the yarn feeding bobbin 21 is erected, the unit controller 50 drives the elevating member driving unit 75 to lower the elevating member 73 by a predetermined amount (for example, 10 mm) (S104). As a result, the movable member 72 and the chase detection sensor 74 are lowered by a predetermined amount together with the elevating member 73 (see the chain line in FIG. 13B). In addition, about the distance which raises the raising / lowering member 73 at this time, an operator can set and change a value by operating the unit input part 18 or the machine base input part 8 grade | etc.,.

  Then, similarly to the above, the unit controller 50 once erects the yarn feeding bobbin 21 (S105) and brings the brush portion 11b of the yarn crimping prevention device 11 into contact with the upper end portion of the yarn feeding bobbin 21. Thereafter, the stepping motor control unit 102 rotates the bobbin holding unit 110 so as to slightly tilt the yarn feeding bobbin 21 to the front side again (S106). The control for lowering the elevating member 73 may be completed before the bobbin holding portion 110 is rotated to the front side. The timing for starting the control to lower the lifting member 73 may be before the yarn feeding bobbin 21 is upright or after the yarn feeding bobbin 21 is upright. In addition, when starting the control which descends the raising / lowering member 73 after making the yarn feeding bobbin 21 upright, it is necessary to make the yarn feeding bobbin 21 stand still until the raising / lowering member 73 descends.

  By lowering the elevating member 73 and the chase portion detection sensor 74, the chase portion detection sensor 74 can detect the yarn supply bobbin 21 even when the length of the yarn supply bobbin 21 is less than a predetermined length. Become. Accordingly, similarly to the above, the unit control section 50 stops the rotation of the bobbin holding section 110 when the yarn feeding bobbin 21 is detected by the chase section detection sensor 74 (S107, FIG. 14A).

  Next, the unit controller 50 determines an adjustment distance to be adopted this time. Specifically, the unit control unit 50 reads out the adjustment distance in the above two cases based on the preset type of the yarn feeding bobbin 21, and the length of the yarn feeding bobbin 21 is selected from the two. The adjustment distance when the length is less than the predetermined length is determined as the adjustment distance used this time. Then, the unit control unit 50 outputs a predetermined number of pulses to the stepping motor 100 based on the determined adjustment distance, and rotates the bobbin holding unit 110 to the back side (S108, FIG. 14B).

  Accordingly, even if the chase detecting sensor 74 as the position detecting unit cannot detect the yarn supplying bobbin 21 because the core tube 21a of the supplied yarn supplying bobbin 21 is short, the chase detecting sensor 74 is lowered. By doing so, it becomes possible to detect the yarn feeding bobbin 21 in which the yarn is wound around the short core tube 21a. Therefore, the yarn feeding bobbin 21 can be adjusted to the unwinding reference position without any problem.

  When the type of the yarn feeding bobbin 21 to be used is changed, an appropriate adjustment distance can be set in the storage unit 52 of the unit control unit 50 by performing an appropriate input to the unit input unit 18. Further, this input can be made to the machine base input unit 8 instead of being made to the unit input unit 18. In this case, the machine base control device 7 transmits the content input to the machine base input unit 8 to each winder unit 4. Thereby, an appropriate adjustment distance can be collectively set for the unit controller 50 of each winder unit 4.

  As described above, the winder unit 4 according to the present embodiment includes the bobbin holding unit 110, the chase detection sensor 74 that functions as the length information acquisition unit and the position detection unit, the storage unit 52, and the unit control unit 50. And comprising. The bobbin holding unit 110 holds the yarn feeding bobbin 21. The chase portion detection sensor 74 acquires length information that is information related to the axial length of the yarn feeding bobbin 21. The chase part detection sensor 74 can detect the position of the yarn feeding bobbin 21 held by the bobbin holding part 110. The storage unit 52 stores information on the unwinding reference position, which is a position where the yarn feeding bobbin 21 should be held when the yarn 20 is wound, and information on the position where the chase detection sensor 74 is provided. The unit control unit 50 controls the chase unit detection sensor 74 to move so that the chase unit detection sensor 74 can detect the yarn feeding bobbin 21 held by the bobbin holding unit 110 based on the length information, and the chase unit. Based on the detection result of the detection sensor 74 and the stored contents of the storage unit 52, the yarn feeding bobbin 21 is controlled to move so as to align the yarn feeding bobbin 21 with the target position.

  Thereby, the chase part detection sensor 74 can be moved to a position corresponding to the length of the yarn feeding bobbin 21 by using the length information acquired by the chase part detection sensor 74. Therefore, even when there is variation in the length of the yarn feeding bobbin 21, the chase detection sensor 74 does not fail to detect the yarn feeding bobbin 21, and therefore an operation (positioning operation) for adjusting the yarn feeding bobbin 21 to the target position is performed. It can be done reliably.

  In the present embodiment, the chase part detection sensor 74 serves as both a length information acquisition part and a position detection part. For this reason, the number of sensors can be reduced, the configuration can be simplified, and the cost can be reduced.

  Next, a first modification of the above embodiment will be described with reference to FIGS. FIG. 15 is a flowchart illustrating a process performed by the winder unit 4 when the yarn supplying bobbin 21 is supplied in the first modification. 16 and 17 are side views for explaining the alignment operation of the yarn supplying bobbin 21 in the first modification. FIG. 18 is a side view showing an example in which an area sensor 58 is used as a length measurement sensor. FIG. 19 is a diagram illustrating an example of a length measurement sensor arranged in the bobbin supply device 60.

  In this modification, the same or similar members as those in the above-described embodiment may be denoted by the same reference numerals in the drawings, and description thereof may be omitted. Further, in this modified example, in order to make it easy to see the periphery of the yarn supplying bobbin 21, the illustration of the yarn curl occurrence preventing device 11 is omitted.

  That is, in the configuration of the above-described embodiment (FIG. 11), the chase part detection sensor 74 is used as the length information acquisition part. On the other hand, this modification has a configuration in which a sensor different from the chase detection sensor 74 is used as the length information acquisition unit. Specifically, in this modification, in addition to the configuration of the above-described embodiment, a length measurement sensor 57 is provided as shown in FIG.

  The length measuring sensor 57 is capable of measuring the length of the yarn feeding bobbin 21 after the bobbin setting unit 10 receives the bobbin and before the yarn feeding bobbin 21 is turned to the upright posture. . Specifically, the length measurement sensor 57 includes four sensor elements equivalent to the chase portion detection sensor 74. Each sensor element is composed of a light projecting unit and a light receiving unit, like the chase detection sensor 74. The direction in which the four sensor elements are arranged is equal to the axial direction of the yarn feeding bobbin 21 when passing through the length measuring sensor 57 (see the chain line in FIG. 16A). In the present embodiment, the elevating member 73 is configured so that the chase portion detection sensor 74 can optimally detect the core tube 21a of the yarn supplying bobbin 21 in a state where the core tube 21a of the yarn supplying bobbin 21 is detected by the two sensor elements. The initial position of is set.

  With this configuration, it can be said that the length of the yarn feeding bobbin 21 is longer as the number of sensor elements that detect the yarn feeding bobbin 21 when the yarn feeding bobbin 21 passes the length measurement sensor 57 is larger. Therefore, in this modification, the length of the yarn feeding bobbin 21 can be grasped to some extent based on the number of sensor elements that have detected the yarn feeding bobbin 21. In this way, the length measuring sensor 57 can express the length of the yarn feeding bobbin 21 not in two steps (whether it is a predetermined value or more) but in three or more steps, so that the length of the yarn feeding bobbin 21 is More specifically, it can be measured. Hereinafter, the alignment operation of the yarn feeding bobbin 21 when the length measurement sensor 57 is used as the length information acquisition unit will be described.

  Upon receiving an instruction to start winding the yarn 20, the unit controller 50 causes the bobbin supply device 60 to supply the yarn supply bobbin 21 (S201 in FIG. 15). The yarn supplying bobbin 21 supplied from the bobbin supplying device 60 is received by the bobbin holding unit 110 as shown in FIG. Next, the stepping motor control unit 102 rotates the bobbin holding unit 110 to the back side (S202). The length measurement sensor 57 measures the length of the yarn feeding bobbin 21 in the middle of rotating the bobbin holding portion 110 to the back side (see S203, the chain line in FIG. 16A). Then, the length measurement sensor 57 transmits the measured length of the yarn feeding bobbin 21 to the unit controller 50.

  The unit controller 50 adjusts the position of the unwinding assisting device 12 based on the length of the yarn feeding bobbin 21 received from the length measurement sensor 57 (S204). The unwinding assisting device 12 in this modification includes a second movable member (second auxiliary member) 171 instead of the fixed member 71. The second movable member 171 is movable in the vertical direction when power is supplied from a drive source (not shown). Therefore, the second movable member 171 can move independently of the elevating member 73.

  Various patterns can be considered for adjusting the position of the unwinding assisting device 12 based on the length of the yarn feeding bobbin 21 measured by the length measuring sensor 57. That is, in order to form a balloon having an appropriate shape, not only the positional relationship between the yarn feeding bobbin 21 and the movable member 72 but also the positional relationship between the yarn feeding bobbin 21 (or the movable member 72) and the second movable member 171. It is also important. In particular, when the elevating member 73 is moved largely, it is preferable to move the second movable member 171 in the same direction.

  FIG. 16 shows an example in which a yarn supplying bobbin 21 in which a yarn is wound around a relatively long core tube 21 a is supplied to the winder unit 4. In this example, if the unwinding assisting device 12 is not moved, as shown in FIG. 16B, the height of the chase portion detection sensor 74 is the height near the boundary between the core tube 21a and the chase portion 21b. turn into. In this case, since the chase portion detection sensor 74 may detect the thread layer instead of the core tube 21a, it is difficult to perform the alignment operation with high accuracy. In order to avoid this, the unit controller 50 raises the elevating member 73 when three or more of the four sensor elements constituting the length measuring sensor 57 detect the yarn feeding bobbin 21 ( (See the chain line in FIG. 16B). Thereby, since the height of the chase part detection sensor 74 becomes the height which can detect the core pipe 21a, alignment operation can be performed appropriately.

  Further, in this modification, when the yarn supplying bobbin 21 in which the yarn is wound around the relatively long core tube 21a is supplied as in the present example, the unit control unit 50 includes not only the elevating member 73 but also the first 2 The movable member 171 is also raised (see the chain line in FIG. 16B). In this way, not only the movable member 72 but also the second movable member 171 is moved to an appropriate position according to the length of the yarn feeding bobbin 21, so that the tension of the yarn unwound from the yarn feeding bobbin 21 can be further increased. The yarn 20 can be wound up while keeping it appropriate.

  After adjusting the position of the unwinding assisting device 12, the unit control unit 50 once erects the yarn feeding bobbin 21 in the same manner as described above (S205). Note that, as described above, the yarn shrinkage prevention device 11 is omitted in the drawings of this modification, but at this time, the brush portion 11b of the yarn shrinkage prevention device 11 is brought into contact with the upper end portion of the yarn feeding bobbin 21. Thereafter, the stepping motor control unit 102 rotates the bobbin holding unit 110 so that the yarn feeding bobbin 21 is slightly tilted again to the front side (S206). Then, when the yarn feeding bobbin 21 is detected by the chase part detection sensor 74, the unit controller 50 stops the rotation of the bobbin holding part 110 (S207, FIG. 17A).

  Here, the adjustment distance is obtained based on the stored contents of the storage unit 52 in the same manner as described above. However, in this modification, the length of the yarn feeding bobbin 21 can be acquired in three or more stages. The adjustment distance for each stage is stored in the storage unit 52 (for example, in a table format) for each type of yarn feeding bobbin 21. Further, in order to avoid the enlargement of the stored contents, the unit control unit 50 is stored in the storage unit 52 based on the type of the yarn feeding bobbin 21, the height of the chase unit detection sensor 74, and the unwinding reference position. The adjustment distance may be obtained according to a predetermined calculation formula. Then, the unit control unit 50 outputs a predetermined number of pulses to the stepping motor 100 based on the calculated adjustment distance, and rotates the bobbin holding unit 110 to the back side (S208, FIG. 17B).

  Thus, in this modification, the chase part detection sensor 74 as a position detection part is moved according to the length of the yarn feeding bobbin 21 that is specifically detected to some extent. Therefore, the alignment operation of the yarn feeding bobbin 21 can be performed more reliably. Moreover, in the said embodiment (FIG. 11), when the yarn feeding bobbin 21 by which the thread | yarn was wound around the core pipe 21a longer than assumption may be supplied, alignment may not be performed appropriately, but this modification In this case, both the yarn supplying bobbin 21 in which the yarn is wound around the long core tube 21a and the yarn supplying bobbin 21 in which the yarn is wound around the short core tube 21a can be handled.

  Instead of the length measurement sensor 57, an area sensor 58 as shown in FIG. 18 may be used. The area sensor 58 is composed of a plurality of sensor elements in the same manner as the length measurement sensor 57, but is not composed of a combination of sensor elements that can operate independently like the length measurement sensor 57. The sensor is integrally configured as a sensor for detecting a predetermined detection range from the beginning. In this area sensor 58, since the interval between the sensor elements is extremely short, the length of the yarn feeding bobbin 21 can be acquired as a specific numerical value. Therefore, the alignment operation can be performed more reliably. In addition, an area sensor configured by a single set of sensor elements and detecting an area occupied by the object according to a change in the amount of received light may be used.

  In the configurations of FIGS. 16 and 18, the length of the yarn supplying bobbin 21 is measured from when the bobbin setting unit 10 receives the bobbin until the yarn supplying bobbin 21 stands upright. Thereby, not only the length of the yarn feeding bobbin 21 but also a supply mistake and a receiving mistake of the yarn feeding bobbin 21 can be detected. That is, when the unit control unit 50 supplies the yarn feeding bobbin 21 but the length measurement sensor 57 or the area sensor 58 does not detect the yarn feeding bobbin 21 at all, the yarn feeding bobbin 21 is inserted into the magazine can 62. It is suspected that the bobbin holding portion 110 is not inserted into the core tube 21a or the like. By detecting such a mistake, the next yarn feeding bobbin 21 can be quickly supplied, and the winding efficiency can be improved.

  The place where the length measurement sensor is arranged is arbitrary, but if the yarn sensor is arranged in the path of the yarn feeding bobbin 21 from the bobbin supply device 60 (the storage hole of the magazine can 62) to the unwinding reference position, the configuration is obtained. This is advantageous in that it can be simplified. For example, as shown in FIG. 19, the bobbin detection sensor 59 as a length measurement sensor may be arranged in the vicinity of the bobbin supply device 60. The bobbin detection sensor 59 includes two contact sensors (sensor elements) 59a capable of detecting the upper part of the yarn feeding bobbin 21 housed in the magazine can 62, a contact sensor 59b capable of detecting the lower part of the yarn feeding bobbin 21, It has. Since these contact sensors 59a and 59b are attached so as not to rotate together with the magazine can 62, even if the magazine can 62 rotates, the length of the yarn feeding bobbin 21 to be supplied to the bobbin setting unit 10 is always next. You can measure the length. The contact sensor 59b arranged at the lower part is used for detecting the presence or absence of the yarn feeding bobbin 21, and the two contact sensors 59a arranged at the upper part are for measuring the length of the yarn feeding bobbin 21 in three stages. Used for. In addition, as the bobbin detection sensor 59, a contact sensor may be used and a non-contact type sensor may be used.

  In this configuration of the bobbin detection sensor 59, when the lower contact sensor 59b detects the yarn supply bobbin 21, and both the upper contact sensors 59a detect the yarn supply bobbin 21, the yarn supply to be supplied next. This means that the length of the bobbin 21 is relatively long. When the lower contact sensor 59b detects the yarn supplying bobbin 21, and only one of the upper contact sensors 59a detects the yarn supplying bobbin 21, the yarn supplying bobbin 21 to be supplied next is It will be about the length. Further, when the lower contact sensor 59b detects the yarn feeding bobbin 21, if none of the upper contact sensors 59a detects the yarn feeding bobbin 21, the yarn feeding bobbin 21 to be supplied next is compared. It will be short.

  If the lower contact sensor 59b does not detect the yarn feeding bobbin 21, the yarn feeding bobbin 21 is not accommodated in the bobbin accommodation hole, so that the magazine can 62 rotates and the lower bobbin detection sensor 59 is fed. Until the yarn bobbin 21 can be detected, the length of the yarn feeding bobbin 21 as described above is not determined. And the unit control part 50 can perform alignment operation reliably by adjusting the position of the unwinding assistance apparatus 12 according to the length which the bobbin detection sensor 59 detected.

  In the configuration in which the bobbin detection sensor 59 is disposed in the vicinity of the bobbin supply device 60 as shown in FIG. 19, the length of the yarn feeding bobbin 21 can be measured at a relatively early stage. Therefore, since there is a time allowance in adjusting the position of the unwinding assisting device 12, this adjustment can be performed without difficulty.

  As described above, in the winder unit 4 of the first modified example, the length measurement sensor 57 acquires length information by measurement.

  As a result, the length of the yarn feeding bobbin 21 can be specifically detected to some extent, so that the chase portion detection sensor 74 as the position detecting portion can be moved to a position where the detection of the yarn feeding bobbin 21 does not fail. Therefore, the alignment operation of the yarn feeding bobbin 21 can be performed more reliably and accurately.

  Further, the winder unit 4 of the present modification includes a magazine-type bobbin supply device 60 and a bobbin guide portion 64. The bobbin supply device 60 includes a plurality of bobbin storage holes. The bobbin guide part 64 has a guide path for guiding the yarn feeding bobbin 21 stored in the bobbin storage hole to the bobbin holding part 110. The unit control unit 50 performs control to move the yarn feeding bobbin 21 received by the bobbin holding unit 110 to the unwinding reference position via the guide path. The length measurement sensor 57 (or the area sensor 58 and the bobbin detection sensor 59) measures length information after the yarn feeding bobbin 21 is housed in the bobbin housing hole until it reaches the unwinding reference position. get.

  Thereby, length information can be measured and acquired in the path | route along which the yarn feeding bobbin 21 is normally conveyed. Therefore, it is not necessary to provide a special route for measuring the length information, and the configuration of the winder unit 4 can be prevented from becoming complicated.

  Next, a second modification of the above embodiment will be described.

  That is, in the said embodiment and 1st modification, although it is the structure which acquires by measuring the length of the yarn feeding bobbin 21 with a sensor, in this modification, it is by the machine stand input part 8 or the unit input part 18. Based on the input information, the length information acquisition unit and the unit control unit 50 as the input length acquisition unit acquire the length of the yarn feeding bobbin 21. That is, the unit controller 50 obtains information on the length of the yarn feeding bobbin 21 based on the type of the yarn feeding bobbin 21 set in advance.

  When the unit controller 50 obtains the length of the yarn feeding bobbin 21, the unwinding assisting device 12 (chase part detection sensor) is used when aligning the yarn feeding bobbin 21 according to the length of the yarn feeding bobbin 21. 74) is determined in advance. This determination is performed in the same manner as the method described in S204 of the first modification. Hereinafter, the position where the position detection unit waits in advance when the yarn feeding bobbin 21 is aligned may be referred to as a start reference position. The start reference position determined here does not change unless the setting of the yarn feeding bobbin 21 to be used is changed.

  The winder unit 4 performs the alignment operation of the yarn feeding bobbin 21 using this start reference position, and the following two types of alignment methods can be considered.

  That is, the first method is a method in which the chase detection sensor 74 as the position detection unit is not moved from the start reference position at all during the alignment operation. That is, since the length of the yarn feeding bobbin 21 of the same type does not change greatly, in most cases, the chase portion detection sensor 74 is appropriate if the position of the chase portion detection sensor 74 is appropriate. Thus, the core tube 21a can be detected without any problem. Therefore, in this method, the length of the yarn feeding bobbin 21 is individually measured and the chase part detection sensor 74 is not moved, and the chase part detection sensor 74 is always stationary at the start reference position. Perform the action. Thereby, control can be simplified.

  In the second method, the length of the yarn feeding bobbin 21 is individually measured, and whether or not the chase portion detection sensor 74 is moved from the start reference position is determined based on the measurement result. Here, as a method of measuring the length of the yarn feeding bobbin 21 individually, a method using the chase part detection sensor 74 as in the above embodiment, or a dedicated sensor (length measurement sensor as in the first modification). 57 etc.) is conceivable. That is, in this method, the unit controller 50 functions as a first length information acquisition unit that acquires the length of the yarn feeding bobbin 21 based on the setting. Moreover, the chase part detection sensor 74 functions as a 2nd length information acquisition part which measures the length of the yarn feeding bobbin 21 separately. When the unit control unit 50 determines that the yarn feeding bobbin 21 cannot be detected if the chase detection sensor 74 as the position detection unit is at the start reference position based on the measurement result of the yarn feeding bobbin 21, Control is performed so that the position of the chase detection sensor 74 is changed from the start reference position.

  By using this second method, for most of the supplied yarn feeding bobbins 21, the yarn feeding bobbins 21 are moved without moving the chase detection sensor 74 as a position detection unit from the start reference position. The positioning operation can be performed. On the other hand, when the yarn feeding bobbin 21 having a length different from that of the normal yarn feeding bobbin 21 is supplied, the position detection unit is moved to a position corresponding to the yarn feeding bobbin 21 so that alignment can be performed without any problem even in this case. Can do.

  As described above, the automatic winder according to the second modified example includes the winder unit 4, the machine base control device 7, and the input units (the machine base input unit 8 and the unit input unit 18). The machine base control device 7 controls the plurality of winder units 4. The input unit can input information related to the yarn feeding bobbin 21. The unit control unit 50 acquires length information based on information input to the input unit (that is, functions as a length information acquisition unit). Then, the unit controller 50 determines the start reference position based on the length information, and performs control to move the chase detection sensor 74 to the start reference position.

  Thereby, by moving the chase detection sensor 74 to the start reference position determined based on the input content, it is time and effort to acquire (measure) the length of the yarn feeding bobbin 21 each time the yarn feeding bobbin 21 is supplied. Can be omitted. In addition, the lengths of the yarn feeding bobbins 21 can be easily set for a plurality of winder units 4.

  The preferred embodiments and modifications of the present invention have been described above, but the above configuration can be modified as follows, for example.

  In the above-described embodiment and modification, the tubular movable member 72 is used in the unwinding assisting device 12, but instead of this, a linear guide member formed by a plate member having a guide hole, a wire, or the like, Various shapes of movable members such as a polygonal column member can be used.

  In the above-described embodiment and the modification, the alignment operation for aligning the yarn feeding bobbin 21 with the unwinding reference position of the unwinding assisting device 12 has been described. However, the alignment according to the present invention is not limited to the unwinding reference position. Any position can be set as the target position. Therefore, it is also possible to apply the configuration of the present invention to a winder unit 4 that does not have the unwinding assisting device 12. In this case, as the target position, for example, the position on the extension line of the center position where the yarn 20 is traversed with respect to the take-up bobbin 22 or the vertical line of the guide member that guides the yarn unwound from the yarn feeding bobbin 21 It can be considered that

  In the above embodiment and the modified example, the stepping motor 100 is used to drive the jump plate 40 and the bobbin holding unit 110. However, instead of this, for example, a servo motor, a linear motor, a voice coil motor, or the like is used. The power transmission unit 120 may be driven.

  In the above embodiment and the modification, a transmissive photosensor is used as the chase detection sensor 74 and the length measurement sensor 57, but instead, for example, a reflective photosensor or the like may be used. .

  In the above-described embodiment and modification, a gate-type tension applying device is used as the tension applying device 13, but instead of this, for example, a known disk-type tension applying device is used, and a predetermined amount is applied to the traveling yarn. It may be configured to apply tension.

  The winder unit 4 shown in the above embodiment and the modification includes a bobbin supply device 60 including a magazine can 62. The bobbin supply device is configured to supply a yarn supplying bobbin 21 to a predetermined yarn unwinding yarn 20. As long as it supplies to a position, it can be set as arbitrary structures. For example, it is good also as a structure provided with the column-shaped storage member which can stack and store the yarn supply bobbins 21 and to supply the yarn supply bobbins 21 from the storage members.

  Further, the bobbin supply device may be a tray-type bobbin supply device that supplies a tray loaded with the yarn feeding bobbin 21 to the unwinding position by conveying the tray with a conveyor belt. In a winder unit including a tray-type bobbin supply device, the position of the yarn supplying bobbin 21 can be adjusted to the target position by moving the position of the yarn supplying bobbin 21 in the front-rear direction by switching the conveying direction of the conveyor. Further, a swing member for swinging the tray is provided at the unwinding position, and the yarn feeding bobbin 21 is swung in the front-rear direction together with the tray at the unwinding position, so that the position of the unwinding side end of the yarn feeding bobbin 21 is set. It can be considered to match the target position.

1 Automatic winder 4 Winder unit (winding unit)
7 Machine control device 8 Machine input part (input part)
110 Bobbin holding part (bobbin holding mechanism)
12 Unwinding assist device 18 Unit input part (input part)
50 Unit control unit (control unit, input information acquisition unit)
52 storage unit 57 length measurement sensor (length information acquisition unit)
58 Area sensor (length information acquisition unit, length measurement sensor)
59 Bobbin detection sensor (length information acquisition unit)
72 Movable member (first auxiliary member)
74 Chase part detection sensor (length information acquisition part, position detection part)
171 Second movable member (second auxiliary member)

Claims (23)

A bobbin holding mechanism for holding the yarn feeding bobbin;
A length information acquisition unit that acquires length information that is information related to the axial length of the yarn feeding bobbin;
A position detection unit capable of detecting the position of the yarn feeding bobbin held by the bobbin holding mechanism;
A storage unit that stores information on a target position, which is a position where the yarn feeding bobbin should be held when winding the yarn, and information on a position where the position detection unit is provided;
Based on the length information, control for moving the position detection unit so that the yarn detection bobbin held by the bobbin holding mechanism can be detected by the position detection unit, a detection result of the position detection unit, and the storage unit A control unit that performs a control to move the yarn feeding bobbin so that the yarn feeding bobbin matches the target position based on the stored content of
A winding unit comprising: The winding unit according to claim 1,
Provided with an unwinding assisting device for assisting unwinding of the yarn of the yarn feeding bobbin,
The target position is the unwinding reference position of the unwinding assisting device,
The winding unit is characterized in that the control unit moves the yarn feeding bobbin so that the yarn feeding bobbin held by the bobbin holding mechanism matches the unwinding reference position of the unwinding assisting device. The winding unit according to claim 2,
The unwinding assist device assists in unwinding the yarn of the yarn supplying bobbin by moving following the change of the chase portion which is the yarn layer end portion of the yarn supplying bobbin accompanying the progress of the winding operation of the package. Having a first auxiliary member;
The winding unit according to claim 1, wherein the position detection unit is a chase unit detection sensor that moves together with the first auxiliary member during unwinding work and detects the chase unit. The winding unit according to claim 3,
The chase unit detection sensor also serves as the length information acquisition unit, and the chase unit detection sensor acquires the length information from a detection result of a passing yarn feeding bobbin. The winding unit according to claim 3 or 4,
The first auxiliary member and the chase detection sensor are driven by a common drive source. The winding unit according to claim 5,
A stepping motor is used as the drive source. The winding unit according to any one of claims 1 to 3,
The said length information acquisition part is a length measurement sensor which acquires the said length information by measurement, The winding unit characterized by the above-mentioned. The winding unit according to claim 7,
Provided with an unwinding assisting device for assisting unwinding of the yarn of the yarn feeding bobbin,
The target position is the unwinding reference position of the unwinding assisting device,
The unwinding assist device assists in unwinding the yarn of the yarn supplying bobbin by moving following the change of the chase portion which is the yarn layer end portion of the yarn supplying bobbin accompanying the progress of the winding operation of the package. Having a first auxiliary member;
The position detection unit is a chase unit detection sensor that moves with the first auxiliary member during unwinding work and detects the chase unit,
The said control part adjusts the position of the said chase part detection sensor based on the measurement result of the said length measurement sensor, The winding unit characterized by the above-mentioned. The winding unit according to claim 8,
The unwinding auxiliary device includes a second auxiliary member that assists in unwinding the yarn of the yarn supplying bobbin on the downstream side in the winding direction of the yarn of the first auxiliary member,
The said control part adjusts the position of a said 2nd auxiliary member based on the measurement result of the said length measurement sensor, The winding unit characterized by the above-mentioned. A winding unit according to any one of claims 7 to 9,
A magazine-type bobbin supply device having a plurality of bobbin storage holes;
A bobbin guide portion having a guide path for guiding the yarn feeding bobbin stored in the bobbin storage hole to the bobbin holding mechanism;
With
The control unit performs control to move the yarn feeding bobbin received by the bobbin holding mechanism to the target position via the guide path,
The winding unit according to claim 1, wherein the length measurement sensor measures and acquires the length information from when the yarn supplying bobbin is stored in the bobbin storage hole to when it reaches the target position. The winding unit according to claim 10,
The length measurement sensor measures and acquires the length information for a yarn feeding bobbin held in at least one bobbin storage hole among a plurality of yarn feeding bobbins stored in the bobbin storage holes. Special winding unit. The winding unit according to any one of claims 7 to 10,
The bobbin holding mechanism is capable of turning the received yarn feeding bobbin to at least the target position,
The length measurement sensor is capable of measuring and acquiring the length information of the yarn supplying bobbin after the bobbin holding mechanism receives the yarn supplying bobbin and before turning to the target position. Winding unit. The winding unit according to any one of claims 7 to 12,
The length measurement sensor includes a plurality of sensor elements capable of detecting the presence or absence of an object,
The winding unit according to claim 1, wherein the sensor element is arranged along an axial direction of the yarn supplying bobbin when passing through the length measuring sensor. The winding unit according to any one of claims 7 to 12,
The length measurement sensor is an area sensor that can detect a portion where an object is present in a detection range, and detects the length of the yarn feeding bobbin based on a ratio occupied by the yarn feeding bobbin in the detection range. Special winding unit. A plurality of winding units according to any one of claims 1 to 3,
A machine control device for controlling the plurality of winding units;
An input unit that is provided in at least one of the winding unit and the machine base control device and is capable of inputting information related to a yarn feeding bobbin;
With
The length information acquisition unit is an input length acquisition unit that acquires the length information based on information input to the input unit,
The control unit determines a start reference position, which is a position where the position detection unit waits in advance when performing alignment of the yarn feeding bobbin based on the length information acquired by the input length acquisition unit. And an automatic winder that controls to move the position detection unit to the start reference position. The automatic winder according to claim 15,
Provided with an unwinding assisting device for assisting unwinding of the yarn of the yarn feeding bobbin,
The target position is the unwinding reference position of the unwinding assisting device,
The unwinding assist device assists in unwinding the yarn of the yarn supplying bobbin by moving following the change of the chase portion which is the yarn layer end portion of the yarn supplying bobbin as the package winding operation proceeds. Having a first auxiliary member;
The position detection unit is a chase unit detection sensor that moves with the first auxiliary member during unwinding work and detects the chase unit,
The said control part adjusts the position of the said chase part detection sensor based on the acquisition content of the said input length acquisition part, The automatic winder characterized by the above-mentioned. The automatic winder according to claim 16, wherein
The unwinding auxiliary device includes a second auxiliary member that assists in unwinding the yarn of the yarn supplying bobbin on the downstream side in the winding direction of the yarn of the first auxiliary member,
The said control part adjusts the position of a said 2nd auxiliary member based on the said length information which the said input length acquisition part acquired, The automatic winder characterized by the above-mentioned. A plurality of winding units according to any one of claims 1 to 3,
A machine control device for controlling the plurality of winding units;
An input unit which is provided in the winding unit or the machine base control device and can input information on the length of the yarn feeding bobbin;
With
The length information acquisition unit includes a first length information acquisition unit and a second length information acquisition unit,
The first length information acquisition unit acquires the length information based on information input to the input unit,
The second length information acquisition unit acquires the length information by measuring the supplied yarn feeding bobbin,
The control unit is a start reference position, which is a position where the position detection unit waits in advance when performing alignment of the yarn feeding bobbin based on the length information acquired by the first length information acquisition unit. And the position detection based on the length information acquired by the second length information acquisition unit when the position detection unit of the start reference position determines that the yarn feeding bobbin cannot be detected. An automatic winder characterized by performing control to move the part. In a yarn feeding bobbin alignment method by a winding unit that winds a yarn unwound from a yarn feeding bobbin to form a package,
A first step of moving the yarn feeding bobbin so as to pass through a position detection unit capable of detecting the position of the yarn feeding bobbin;
A second step of moving the position detection unit when the position detection unit cannot detect the yarn feeding bobbin;
A third step of moving the yarn supplying bobbin again toward the position detecting unit, detecting the yarn supplying bobbin by the position detecting unit, and determining a start reference position for alignment of the yarn supplying bobbin;
A fourth step of moving the yarn supplying bobbin from the determined starting reference position by a preset distance to adjust the position of the yarn supplying bobbin to a target position that is a position to hold the yarn supplying bobbin;
A method for aligning a yarn feeding bobbin, comprising: In a yarn feeding bobbin alignment method by a winding unit that winds a yarn unwound from a yarn feeding bobbin to form a package,
A first step of acquiring length information, which is information related to the axial length of the yarn feeding bobbin, by measuring the length measurement sensor;
A second step of moving a position detection unit capable of detecting the position of the yarn feeding bobbin based on the length information acquired by the length measurement sensor;
A third step of moving the yarn supplying bobbin toward the position detecting unit, detecting the yarn supplying bobbin by the position detecting unit, and determining a start reference position for alignment of the yarn supplying bobbin;
An adjustment distance indicating a distance from the start reference position to a target position that is a position where the yarn feeding bobbin should be held is acquired based on the position of the position detection unit and the position of the yarn feeding bobbin, and the adjustment distance is set to the adjustment distance. A fourth step of moving the yarn supplying bobbin from the starting reference position by a distance based on the position and aligning the yarn supplying bobbin with the target position;
A method for aligning a yarn feeding bobbin, comprising: Positioning of a yarn feeding bobbin by an automatic winder comprising a plurality of winding units that wind a yarn unwound from a yarn feeding bobbin to form a package, and a machine base control unit that controls the plurality of winding units In the method
Length information which is information on the axial length of the yarn feeding bobbin based on information on the yarn feeding bobbin input to the input unit provided in at least one of the winding unit and the machine base control device A first step of obtaining
Based on the acquired length information, a start reference position, which is a position where the position detection unit waits in advance when positioning the yarn feeding bobbin, is determined, and the position detection unit is moved to the start reference position. A second step;
A third step of moving the yarn supplying bobbin toward the position detecting unit, causing the position detecting unit to detect the yarn supplying bobbin, and determining a start reference position for alignment of the yarn supplying bobbin;
An adjustment distance indicating a distance from the start reference position to a target position that is a position where the yarn feeding bobbin should be held is acquired based on the position of the position detection unit and the position of the yarn feeding bobbin, and the adjustment distance is set to the adjustment distance. A fourth step of moving the yarn supplying bobbin from the starting reference position by a distance based on the position and aligning the yarn supplying bobbin with the target position;
A method for aligning a yarn feeding bobbin, comprising: A bobbin holding mechanism for holding the yarn feeding bobbin;
A position detection unit for detecting a yarn feeding bobbin held by the bobbin holding mechanism;
A control unit for controlling the bobbin holding mechanism and positioning it at an optimal position;
A winding unit comprising: The winding unit according to claim 22,
A winding unit comprising a length information acquisition unit that acquires length information of a yarn feeding bobbin to move the position detection unit.

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