Traversing device and thread winding device

Abstract

The invention provides a traverse device and a yarn winding device. The original point position of a traverse guide can be determined through a simple structure, and the traverse guide can be prevented from falling off from a driving belt. The traverse device (30) has a traverse guide (22), an endless belt (35), a traverse motor (32), a first restricting member (37a), and a fall-off prevention portion (53). The traverse motor (32) is capable of changing a reciprocating region in which the traverse guide (22) reciprocates within the movable region (TRm), and is capable of moving and driving the traverse guide (22) to an attachment / detachment position in which the traverse guide (22) is attachable / detachable to / from the endless belt (35). The first restricting member (37a) is disposed on the opposite side of the attachment / detachment position across the production region (TRn) in the traverse direction. The fall-off prevention portion (53) prevents the traverse guide (22) in contact with the first restricting member (37a) from falling off from the endless belt (35).

Description

Technical Field

[0001] The invention relates to a traversing device and a wire winding device comprising the traversing device. Background Art

[0002] Patent document 1 discloses a traversing device for traversing a yarn as a package material. More specifically, the traversing device includes a traversing motor (drive source), a drive belt, and a traversing guide. The drive belt is driven back and forth by the traversing motor, and the traversing guide mounted on the drive belt moves back and forth within a specified area in a specified traversing direction. The traversing device also includes two movement limiting components (origin indicating components) for determining the origin position of the reciprocating motion of the traversing guide. The two origin indicating components are arranged in the traversing direction on both sides of the outer side of the normal area where the yarn is traversed under normal circumstances (i.e., when manufacturing a package). The origin position is calculated based on the position information of the traversing guide when the traversing guide contacts the first origin indicating component and the position information of the traversing guide when the traversing guide contacts the second origin indicating component.

[0003] Prior art literature

[0004] Patent Literature

[0005] Patent Document 1: Japanese Patent Application Laid-Open No. 2004-189359 Summary of the Invention

[0006] Although not described in Patent Document 1, the positions near the two origin indicating components are the disassembly and assembly positions where the traversing yarn guide can be disassembled and assembled relative to the drive belt. For example, during maintenance, the traversing yarn guide located at the disassembly and assembly position can be easily removed from the drive belt. However, in such a configuration, when the traversing yarn guide touches the origin indicating component to determine the origin position, there is a risk that the traversing yarn guide may accidentally fall off the drive belt due to rebound. In response to this, it is conceivable that a locking mechanism for preventing the traversing yarn guide from falling off the drive belt is provided on the traversing yarn guide. However, this measure causes new problems such as the complication of the mechanism of the traversing yarn guide and the increase in the inertial mass of the traversing yarn guide.

[0007] An object of the present invention is to enable determination of the origin position of a traverse guide and to prevent the traverse guide from falling off a drive belt using a simple configuration.

[0008] A traversing device according to a first aspect is a traversing device for traversing a yarn, and includes: a traversing guide configured to guide the yarn; a drive belt to which the traversing guide is mounted; a drive source capable of reciprocating the drive belt in a predetermined traversing direction, capable of changing a reciprocating region within a predetermined movable region in the traversing direction, and capable of moving the traversing guide to a detachable position, the detachable position being located outside a production region, the reciprocating region being narrower than the movable region, and wherein the traversing guide is detachable from the drive belt; an origin indicating member disposed at a position opposite to the detachable position across the production region in the traversing direction and at a position capable of contacting the traversing guide, the origin indicating member being used to determine an origin position of the traversing guide; and a fall-off preventing portion configured to prevent the traversing guide, which contacts the origin indicating member, from falling off the drive belt.

[0009] In this embodiment, the origin indicator component is positioned opposite the assembly / disassembly position in the traversing direction, across the production area. Generally, the length of the movable area in the traversing direction (the movable length) can be known in advance using design information. Therefore, by using some means to obtain information about the position of the traversing guide in contact with the origin indicator component (the contact position), the center position of the area in which the traversing guide is moved (i.e., the origin) can be specifically determined. More specifically, the position of the origin can be determined using information about the contact position and the movable length. With this configuration, when the traversing guide contacts the origin indicator component, there is no need to move the traversing guide toward the assembly / disassembly position. Furthermore, in this embodiment, when the traversing guide contacts the origin indicator component, the fall-off prevention portion prevents the traversing guide from falling off the drive belt. As described above, with a simple configuration, the origin position of the traversing guide can be determined and the traversing guide can be prevented from falling off the drive belt.

[0010] A traversing device according to a second aspect is configured such that, in the first aspect, the fall-off preventing portion extends at least over the entire production area in the traversing direction.

[0011] In this solution, the traversing yarn guide can be prevented from falling off the drive belt not only when the origin position is determined but also when the traversing yarn guide is reciprocating in the production area.

[0012] A traverse device according to a third aspect is configured such that, in the first or second aspect, the drive source includes a servo motor configured to detect position information regarding the position of the traverse guide in the traverse direction.

[0013] In this solution, the origin position can be derived using position information detected by the servo motor. More specifically, if there is a mismatch between the signal used to activate the servo motor and the position information (i.e., the servo motor loses sync), it can be determined that the traverse guide has contacted the origin indicator. This makes it possible to easily and accurately determine the origin position.

[0014] A fourth aspect of the traverse device according to any one of the first to third aspects comprises a guide rail provided at least in the production area in the traverse direction and guiding the traverse yarn guide, wherein the fall-off prevention portion is provided integrally with the guide rail.

[0015] In this scheme, the track of the traverse guide when it is reciprocated in the production area can be stabilized by the guide rail. In addition, it is possible to prevent the traverse guide from falling off when determining the origin position and the track of the traverse guide in the production area from being stabilized with a simple structure.

[0016] The wire winding device of the fifth scheme comprises: a bobbin holder, which is configured to extend along a predetermined axial direction and arrange and support a plurality of bobbins for winding a plurality of wires respectively along the axial direction; and a plurality of traversing devices based on any one of the first to fourth schemes, which are arranged in the axial direction corresponding to the plurality of wires respectively, the plurality of traversing devices being configured to be accessible from one side in a predetermined intersecting direction intersecting the axial direction, and the first end of the first traversing device being configured to overlap with the second end of the second traversing device in the axial direction, wherein the first traversing device is one of the plurality of traversing devices, the first end is the end of the first traversing device on the side of the mounting and dismounting position in the traversing direction, the second traversing device is a traversing device among the plurality of traversing devices arranged adjacent to the first traversing device in the traversing direction, the second end is the end of the second traversing device on the side opposite to the mounting and dismounting position in the traversing direction, and the first end is arranged at a position closer to the one side than the second end in the intersecting direction.

[0017] In a configuration in which the first end portion overlaps with the second end portion in the axial direction and is positioned closer to the other side than the second end portion in the cross direction, even if an attempt is made to remove the traversing yarn guide in the disassembly position, the operation is difficult due to the obstruction caused by the second end portion. Therefore, during maintenance, in order to remove the traversing yarn guide from the traversing device, it may be necessary to remove the traversing device from the yarn winding device. In this regard, in the present embodiment, the first end portion is positioned closer to the side than the second end portion in the cross direction, i.e., at a position that is easily accessible to the operator. Therefore, during maintenance, even if the traversing device is not removed from the yarn winding device, the traversing yarn guide can be easily removed from the traversing device.

[0018] The wire winding device of the sixth scheme is constructed as follows: in the fifth scheme, the driving source has a servo motor, and the servo motor is constructed to be able to detect position information related to the position of the traversing wire guide in the traversing direction. The wire winding device includes a control unit, and the control unit controls the servo motor to move the traversing wire guide to a contact position with the origin indicating component, uses the position information to determine whether the traversing wire guide contacts the origin indicating component, and uses the position information representing the contact position and the information of the predetermined length of the movable area to set a position away from the contact position at a distance specified in proportion to the length of the movable area in the traversing direction as the origin position.

[0019] In this aspect, the origin position can be easily and accurately set by the control unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 1 is a side view of a spinning draw-off machine including the traverse device according to the present embodiment.

[0021] Figure 2 This is a perspective view of a portion of a yarn winding device.

[0022] Figure 3 (a) and (b) are diagrams showing the structure of the traverse device.

[0023] Figure 4 In the figure, (a) is an enlarged perspective view of one end portion of the traverse device in the traverse direction, and (b) is a view showing the main body of the traverse guide.

[0024] Figure 5 This is an enlarged perspective view of the other end portion of the traverse device in the traverse direction.

[0025] Figure 6 This is a flowchart showing a method for determining the origin position.

[0026] Figure 7 (a) and (b) are diagrams showing the position of the traverse guide when the origin position is determined.

[0027] Description of Reference Numerals

[0028] 13: Thread winding device, 22: Transverse guide, 24: Bobbin holder, 26: Control unit, 30: Transverse device, 32: Transverse motor (drive source), 35: Endless belt (drive belt), 36: Guide rail unit (guide rail), 37a: First limiting component (origin indication component), 53: Fall-off prevention unit, B: Bobbin (winding tube), P: Package, TRm: Movable area, TRn: Production area, Y: Thread. DETAILED DESCRIPTION

[0029] Next, the embodiments of the present invention will be described. Figure 1 The directions shown are defined as up-down and front-back directions. Figure 1 The up-down direction in the paper) is the vertical direction in which gravity acts. The front-back direction ( Figure 1 The left-right direction in the paper is a predetermined direction perpendicular to the up-down direction. The front-back direction is equivalent to the axial direction of the present invention. In addition, the direction perpendicular to both the up-down direction and the front-back direction (perpendicular to Figure 1 The direction of the paper in the figure is defined as the left-right direction.

[0030] (Spinning traction machine)

[0031] Reference Figure 1 A spinning draw-off machine 1 including a traverse device 30 (described later) according to this embodiment will be described. Figure 1 It is a side view of the spinning draw-off machine 1.

[0032] The spinning and drawing machine 1 is configured to draw a plurality of yarns Y spun from a spinning device 2 and wind them onto a plurality of bobbins B to form a plurality of packages P. The spinning device 2 discharges, for example, a molten polymer serving as the material of the yarns Y. The yarns Y are made of, for example, a polyester such as PET, but are not limited thereto. The yarns Y are, for example, monofilament yarns consisting of a single filament, but are not limited thereto.

[0033] like Figure 1 and Figure 2 As shown, the spinning and drawing machine 1 includes a first godet roller 11 , a second godet roller 12 and a yarn winding device 13 .

[0034] The first godet roller 11 is a roller whose axial direction is substantially parallel to the left-right direction. The first godet roller 11 is, for example, located below the spinning device 2. Multiple yarns Y are wound around the first godet roller 11 in a horizontally aligned manner. The first godet roller 11 is driven by a motor (not shown). Thus, the first godet roller 11 conveys the multiple yarns Y downstream in the direction of yarn travel.

[0035] The second godet roller 12 is a roller whose axial direction is substantially parallel to the left-right direction. The second godet roller 12 is positioned downstream of the first godet roller 11 in the direction of yarn travel. The second godet roller 12 is positioned above and behind the first godet roller 11. The second godet roller 12 is driven by a motor (not shown). As a result, the second godet roller 12 conveys the yarn Y downstream in the direction of yarn travel.

[0036] The yarn winding device 13 is configured to perform a winding operation of winding a plurality of yarns Y onto a plurality of bobbins B to form a plurality of packages P. The yarn winding device 13 is arranged downstream of the second godet roller 12 in the yarn running direction. The yarn winding device 13 is arranged below the second godet roller 12.

[0037] (Configuration of the yarn winding device)

[0038] Reference Figure 1 and Figure 2 The structure of the yarn winding device 13 will be described. Figure 2 1 is a perspective view of a portion of the wire winding device 13. Figure 1 As shown, the yarn winding device 13 includes a frame 20 , a plurality of fulcrum yarn guides 21 , a plurality of traverse yarn guides 22 , a turntable 23 , two bobbin holders 24 , a contact roller 25 , and a control unit 26 .

[0039] The frame 20 is a component for installing or accommodating the various components of the wire winding device 13. The frame 20 includes, for example, a first frame 20a and a second frame 20b. The first frame 20a is configured to extend in the up-down direction, for example. The first frame 20a is disposed at the rear end portion of the wire winding device 13. The second frame 20b is configured to extend in the front-back direction, for example. The second frame 20b is fixed to the front end of the upper end portion of the first frame 20a. In addition, a front surface cover 20c (see Figure 2 ).

[0040] The plurality of fulcrum yarn guides 21 are yarn guides that serve as fulcrums when the traveling yarn Y passes through each traverse yarn guide 22. Each fulcrum yarn guide 21 guides the yarn Y to the downstream side of the yarn traveling direction. Figure 1 As shown, a plurality of fulcrum yarn guides 21 are provided individually for a plurality of yarns Y. The plurality of fulcrum yarn guides 21 are arranged in the front-to-back direction.

[0041] Multiple traversing guides 22 are provided for each of the plurality of yarns Y. The traversing guides 22 are arranged in a front-to-back arrangement. Each traversing guide 22 reciprocates at least in the front-to-back direction. As a result, the traveling yarn Y suspended from the traversing guides 22 traverses about the fulcrum guide 21. The movement direction of each traversing guide 22 may also be tilted in the front-to-back direction.

[0042] The plurality of traverse guides 22 are respectively included in a plurality of traverse devices 30 (see Figure 3 (a) etc.). A plurality of traverse devices 30 are arranged in a row in the front-to-back direction. A plurality of traverse devices 30 are housed in the second frame 20b, for example. The traverse devices 30 adjacent to each other in the front-to-back direction may also be arranged so as to partially overlap in the front-to-back direction (see Figure 2) The detailed structure of each traverse device 30 will be described later.

[0043] The turntable 23 is, for example, a disk-shaped member whose axial direction is substantially parallel to the front-rear direction. Figure 1 )Rotation drive.

[0044] Two bobbin holders 24 (see Figure 1 ) are rotatably supported on the turntable 23. For example, when viewed from the front-back direction, the two bobbin holders 24 are arranged point-symmetrically with the rotation axis center of the turntable 23 as the symmetry center. The axial direction of each bobbin holder 24 is substantially parallel to the front-back direction (refer to Figure 1 ). Each bobbin holder 24 supports a plurality of bobbins B arranged in a front-to-back direction. In the present embodiment, each bobbin holder 24 supports, for example, six bobbins B. It should be noted that the number of bobbins B that the bobbin holder 24 can support is not limited thereto. The two bobbin holders 24 are each driven by a separate winding motor 102 (see Figure 1 ) is driven to rotate. Multiple yarns Y are wound simultaneously onto multiple bobbins B mounted on a bobbin holder 24. This bobbin holder 24 is positioned above the other bobbin holders 24. For ease of explanation, this bobbin holder 24 is also referred to as the upper bobbin holder 24.

[0045] The contact roller 25 is located immediately above the upper bobbin holder 24. The axial direction of the contact roller 25 is substantially parallel to the front-rear direction. The contact roller 25 contacts the surfaces of the plurality of packages P supported by the upper bobbin holder 24, applying contact pressure to the surface of each of the packages P, thereby shaping each package P.

[0046] The control unit 26 includes a CPU, a ROM, a RAM, etc. (not shown). The control unit 26 is electrically connected to each part of the yarn winding device 13. The control unit 26 is configured to be able to control the operation of each part of the yarn winding device 13.

[0047] In the yarn winding device 13 having the above-described structure, when the upper bobbin holder 24 is driven to rotate, the yarn Y that is moved horizontally by the traversing yarn guide 22 is wound onto the bobbin B to form a package P. In addition, when the package P becomes fully wound, the upper and lower positions of the two bobbin holders 24 are interchanged by rotating the turntable 23. As a result, the bobbin holder 24 located on the lower side moves to the upper side. A plurality of packages P are formed by respectively winding a plurality of yarns Y onto a plurality of bobbins B mounted on the upper bobbin holder 24. In addition, the bobbin holder 24 on which the plurality of fully wound packages P are mounted moves to the lower side. The plurality of fully wound packages P are recovered, for example, by a package recovery device not shown.

[0048] (Traverse device)

[0049] Next, refer to Figure 3 (a)~ Figure 5 The structure of the traverse device 30 will be described. Figure 3 (a) and Figure 3 (b) is a diagram showing the structure of the traverse device 30. More specifically, Figure 3 (a) is a diagram showing the traverse device 30 as viewed from the other side in the belt width direction described later. Figure 3 (b) is a view of the traverse device 30 viewed from one side in the belt width direction. For the sake of convenience, the direction in which the traverse guide 22 reciprocates is referred to as the traverse direction. Figure 3 The right side of the paper of (a) is defined as one side of the traverse direction, and the left side of the paper is defined as the other side of the traverse direction. Figure 3 In (b), the left side of the paper is one side in the traverse direction, and the right side of the paper is the other side in the traverse direction. Figure 4 (a) is an enlarged perspective view of one end portion of the traverse device 30 in the traverse direction (the rear end portion in the yarn winding device 13). Figure 4 (b) is a diagram showing a main body 41 (described later) of the traverse guide 22, and is a diagram of the main body 41 as viewed from the traverse direction. Figure 5 It is an enlarged perspective view of the other end portion of the traverse device 30 in the traverse direction (the front end portion of the thread winding device 13).

[0050] like Figure 3 As shown in FIG. 5 ( a ), the traverse device 30 includes, for example, a base member 31 , a traverse motor 32 , a drive pulley 33 , two driven pulleys 34 , an endless belt 35 , a guide rail 36 , two regulating members 37 , and the above-mentioned traverse guide 22 .

[0051] The base member 31 is a member to which components such as the traverse motor 32 are mounted. The base member 31 is, for example, a substantially flat plate-shaped member. The base member 31 is arranged to extend long in the traverse direction (in this embodiment, for example, a direction slightly inclined relative to the front-rear direction).

[0052] The traverse motor 32 (the driving source of the present invention) is a driving source for moving the traverse guide 22. The traverse motor 32 is mounted, for example, on the base member 31. The traverse motor 32 has a rotating shaft (not shown). The rotating shaft can rotate in a predetermined positive direction. The rotating shaft can also rotate in a reverse direction opposite to the positive direction. The traverse motor 32 is driven and controlled, for example, by the control unit 26. The control unit 26 is configured, for example, to output a predetermined pulse signal. When the pulse signal is input from the control unit 26 to the traverse motor 32, the traverse motor 32 is configured to rotate the rotating shaft by a predetermined angle.

[0053] More specifically, the traverse motor 32 is, for example, a well-known servo motor. The traverse motor 32 is configured to detect position information related to the position of the traverse guide 22 in the traverse direction. More specifically, the traverse motor 32 includes a rotary encoder 32a (see Figure 3 (a)). The rotary encoder 32a may be, for example, a known incremental device capable of detecting information on the amount of change in the angular position of the rotating shaft. Alternatively, the rotary encoder 32a may be, for example, a known absolute device capable of detecting information on the angular position of the rotating shaft itself. Hereinafter, the information on the amount of change in the angular position and the information on the angular position itself will be collectively referred to as angular position information. The angular position information corresponds to the position information of the traversing yarn guide 22 in the traversing direction. By utilizing the angular position information acquired by the rotary encoder 32a, the position of the traversing yarn guide 22 in the traversing direction can be calculated based on, for example, a prescribed calculation formula. In addition, by using the angular position information and the information on the pulse signal output from the control unit 26, it is possible to determine whether the rotating shaft of the traversing motor 32 is rotating normally. In the present embodiment, the control unit 26 is configured to be able to perform this determination.

[0054] The driving pulley 33 is a pulley around which the endless belt 35 is wound. The driving pulley 33 is rotationally driven in the forward and reverse directions by the traverse motor 32 .

[0055] Like the driving pulley 33, the two driven pulleys 34 are pulleys around which the endless belt 35 is wound. The two driven pulleys 34 are driven to rotate by the action of the endless belt 35. The rotation axis direction of each driven pulley 34 is substantially parallel to the rotation axis direction of the driving pulley 33. Figure 3 As shown in (a), the two driven pulleys 34 include a driven pulley 34a arranged at one end of the traversing device 30 in the traversing direction and a driven pulley 34b arranged at the other end of the traversing device 30 in the traversing direction. A line segment (not shown) connecting the rotation axis center of the driven pulley 34a and the rotation axis center of the driven pulley 34b can be inclined relative to the front-to-back direction. The driven pulley 34b (i.e., the front end) of a certain traversing device 30 and the driven pulley 34a (i.e., the rear end) of the traversing device 30 arranged on the front side of the traversing device 30 can be arranged at a position that at least partially overlaps in the front-to-back direction (refer to Figure 2 ).

[0056] The endless belt 35 (the drive belt of the present invention) is wound around the drive pulley 33 and two driven pulleys 34. The traverse guide 22 is mounted on the substantially straight portion of the endless belt 35 between the two driven pulleys 34. The traverse motor 32 rotates the drive pulley 33, driving the endless belt 35 back and forth, and the traverse guide 22 reciprocates in the traverse direction. For ease of explanation, the width direction of the endless belt 35 is referred to as the belt width direction (see Figure 4 (a) to Figure 5 The belt width direction is a direction substantially parallel to the rotation axis direction of the driving pulley 33 and the two driven pulleys 34 ( Figure 3 In addition, for the sake of convenience, the direction perpendicular to both the traverse direction and the belt width direction is referred to as the perpendicular direction (refer to Figure 3 (a) to Figure 5 ).

[0057] In the above-described configuration, the traverse guide 22 can be positioned in a predetermined area ( Figure 3 The traverse motor 32 can be used to move the traverse guide 22 to any position within the movable region TRm shown in (a). That is, the region (reciprocating region) in which the traverse motor 32 causes the traverse guide 22 to reciprocate can be arbitrarily changed within the movable region TRm by, for example, the control unit 26. For the sake of convenience, the length of the movable region TRm in the traverse direction is also referred to as the movable length. For example, when performing a winding operation, the traverse guide 22 is moved to the production region TRn (refer to FIG. Figure 3 (a)). In the traverse direction, the production area TRn is narrower than the movable area TRm. In other words, the length of the production area TRn in the traverse direction is shorter than the movable length. The length of the production area TRn in the traverse direction can be changed, for example, during the winding action. That is, the length in the front-to-back direction of the traverse guide 22 in which the traverse guide 22 reciprocates can be changed during the winding action. Thus, for example, a well-known conical package P (see Figure 1 ) In addition, the traverse guide 22 can also move in the traverse direction within the movable region TRm to a position outside the production region TRn.

[0058] The guide rail 36 (the guide rail of the present invention) is configured to guide the traverse guide 22 in the traverse direction. The guide rail 36 extends in the traverse direction. The guide rail 36 is provided at least in the production region TRn in the traverse direction. The details of the guide rail 36 will be described later.

[0059] The two limiting members 37 are components for limiting the movement of the traversing guide 22 in the traversing direction. The two limiting members 37 are arranged on the inner side of the two driven pulleys 34 in the traversing direction. The traversing guide 22 can move in the area between the two limiting members 37 in the traversing direction. In other words, the movable area TRm is defined by the two limiting members 37. As described later, one of the two limiting members 37 is also used to determine the position of the movement origin of the traversing guide 22 in the traversing direction (hereinafter referred to as the origin position). The origin position can be derived based on the angular position information of the rotating shaft of the traversing motor 32 when the traversing guide 22 contacts the limiting member 37. Details will be described later.

[0060] In a conventional traversing device (not shown), the position near the restriction member 37 serves as the detachable position for the traversing guide 22 relative to the endless belt 35. For example, during maintenance, the traversing guide 22 in the detachable position can be easily removed from the endless belt 35. However, with this configuration, when the traversing guide 22 contacts the restriction member 37 to determine its origin, there is a risk that the traversing guide 22 may accidentally fall off the endless belt 35 due to rebound. To address this issue, for example, a locking mechanism (not shown) could be incorporated into the traversing guide 22 to prevent it from falling off the endless belt 35. However, this approach introduces new problems, such as increased complexity of the traversing guide 22's structure and an increase in its inertial mass. For example, an increase in the inertial mass of the traversing guide 22 could reduce its acceleration. Therefore, in order to prevent the traverse guide 22 in contact with the regulating member 37 from falling off from the endless belt 35 with a simple configuration, the traverse device 30 has the following configuration.

[0061] (Details of the structure of the traverse device)

[0062] For further details on the configuration of the traverse device 30, refer to Figures 2 to 5 First, the further details of the traverse guide 22 are described. Figure 3 (a)~ Figure 4 As shown in FIG. 1 ( a ), the traverse guide 22 includes a main body 41 and a guide body 42 .

[0063] Main body 41 (refer to Figure 3 (a) to Figure 5 ) is a component mounted on the endless belt 35. For example, the main body 41 extends longer in the traverse direction than in the belt width direction and the orthogonal direction. Roughly speaking, when viewed from the traverse direction, the main body 41 has a shape similar to the letter L (refer to Figure 4 (b)). Figure 4 (a)~ Figure 5 As shown, the main body 41 includes a mounting portion 43 , a first protrusion 44 , a second protrusion 45 and a third protrusion 46 .

[0064] The mounting portion 43 (see Figure 4 (a)~ Figure 5 ) is a portion mounted on the endless belt 35. The mounting portion 43 is Figure 4 The portion highlighted by the hatching in (b) is shown in FIG. The mounting portion 43 is, for example, a substantially rectangular parallelepiped portion. The mounting portion 43 has, for example, a groove 43a (see FIG. Figure 5). The groove 43a is formed in the entire area of ​​the main body 41 in the traverse direction. When viewed from the traverse direction, the groove 43a is open on one side in the belt width direction. The groove 43a has a shape that allows the endless belt 35 to be inserted relatively along the belt width direction. More specifically, the endless belt 35 is, for example, a well-known toothed belt. A plurality of engaging holes 43b (see FIG. 1 ) that can respectively engage with a plurality of teeth (not shown) of the toothed belt are formed in the middle portion of the groove 43a in the traverse direction. Figure 5 ) By configuring the mounting portion 43 in this manner, the main body 41 is mounted on the endless belt 35 .

[0065] The first protrusion 44 and the second protrusion 45 are portions for restricting the main body 41 from moving in an unintended direction by the guide rail portion 36. The first protrusion 44 protrudes further toward the base member 31 side from the end portion (one side) of the mounting portion 43 in the orthogonal direction (see Figure 4 (a)). The second protrusion 45 is, for example, a portion of the mounting portion 43 in the belt width direction. The second protrusion 45 is, for example, provided at an end portion on one side of the mounting portion 43 in the belt width direction (see Figure 4 (a)~ Figure 5 ).

[0066] The third protrusion 46 is a portion that fixes the guide body 42 (see Figure 4 (a) The third protrusion 46 protrudes further toward the other side (the opposite side of the base member 31 ) from the other end portion of the mounting portion 43 in the orthogonal direction, for example.

[0067] The guide body 42 is configured to guide the traveling yarn Y (see Figure 1 The guide body 42 is fixed to the third protrusion 46 of the main body 41 .

[0068] (Guide rail part)

[0069] The guide rail portion 36 will be described in further detail. Figure 3 (a) to Figure 4 (a) and Figure 5 As shown, the guide rail portion 36 has, for example, a first guide component 51 and a second guide component 52 .

[0070] The first guide member 51 (see Figure 3 (a)~ Figure 4 (a) Figure 5) is a member extending in the traversing direction, for example, over the entire range of the movable region TRm. The first guide member 51 is fixed to the base member 31, for example, by a fixing device (not shown). The first guide member 51 is arranged at a position closer to the base member 31 than the traversing guide 22 in the orthogonal direction. The first guide member 51 has a guide surface 51a and a guide groove 51b. The guide surface 51a and the guide groove 51b both extend in the traversing direction and guide the main body 41 of the traversing guide 22 in the traversing direction. The guide surface 51a, for example, faces the mounting portion 43 of the main body 41 in the orthogonal direction. The guide surface 51a restricts movement of the mounting portion 43 toward the base member 31 in the orthogonal direction. The guide groove 51b guides the first protrusion 44 of the main body 41 in the traversing direction. The guide groove 51b, for example, restricts movement of the first protrusion 44 to both sides in the tape width direction. As described above, the first guide member 51 guides the traverse guide 22 in the traverse direction while restricting movement of the traverse guide 22 to one side in the orthogonal direction (toward the base member 31 ) and to both sides in the tape width direction.

[0071] The second guide member 52 (see Figure 3 (a)~ Figure 4 (a) and Figure 5 ) is a member extending in the traverse direction, for example, from one end of the movable region TRm to near the other end. The second guide member 52 is fixed to the base member 31, for example, by a fixing device not shown. The second guide member 52 is arranged at a position closer to one side than the traverse guide 22 in the tape width direction. The second guide member 52 has a guide surface 52a for guiding the second protrusion 45 in the traverse direction. The guide surface 52a is a surface arranged on the opposite side of the guide surface 51a of the first guide member 51 across the second protrusion 45 in the orthogonal direction. The guide surface 52a faces the second protrusion 45 side in the orthogonal direction. The guide surface 52a restricts the movement of the second protrusion 45 to the other side in the orthogonal direction (the opposite side of the base member 31).

[0072] The second guide member 52 is not arranged at the other end of the movable region TRm in the traverse direction (see Figure 3 (a) Figure 3 (b) and Figure 5 ). Alternatively, the other end portion of the guide surface 52a of the second guide member 52 in the traverse direction may be cut off. With such a structure, when the traverse guide 22 is located at the other end portion of the movable region TRm in the traverse direction, the restriction on the movement of the traverse guide 22 to the other side in the orthogonal direction is released. Thus, the traverse guide 22 can be removed from the endless belt 35. More specifically, for example, the staff can separate the traverse guide 22 from the endless belt 35 by moving the traverse guide 22 to the other side in the orthogonal direction and then to the other side in the belt width direction (refer to Figure 5 For the sake of convenience, the position of the traverse guide 22 in the traverse direction when the traverse guide 22 can be removed from the endless belt 35 is referred to as the detachment position. When the traverse guide 22 is in the detachment position, the traverse guide 22 can be detached relative to the endless belt 35 (see Figure 5 ).

[0073] Preferably, the detachable position of each of the plurality of traverse devices 30 is a position that is easily accessible to the staff. More specifically, for example, the wire winding device 13 (see Figure 2 ) is configured so that a worker can approach the traversing device 30 from the upper side of the frame 20. In such a configuration, the front end portion (first end portion) of a certain traversing device 30 is arranged so as to overlap with the rear end portion (second end portion) of the traversing device 30 adjacently arranged in front of the certain traversing device 30 in the front-to-back direction. In addition, the first end portion is arranged at a position above the second end portion (see Figure 2 ). A certain traversing device 30 is equivalent to the first traversing device of the present invention. The traversing device 30 adjacently arranged in front of the certain traversing device 30 is equivalent to the second traversing device of the present invention. In this case, it is preferred that the disassembly position is arranged, for example, at the front end of each traversing device 30. In the case where the disassembly position is arranged, for example, at the rear end (that is, when the first end is arranged at a position lower than the second end), in order to remove the traversing guide 22, it may be necessary to remove the traversing guide 30 from the wire winding device 13. In this regard, in the above-mentioned preferred structure of the present embodiment, the traversing guide 22 can be easily removed from the traversing device 30 during maintenance. More specifically, during maintenance, the traversing guide 22 can be removed from the traversing device 30 without removing the traversing device 30 from the wire winding device 13. The up and down directions perpendicular to (intersecting) the front and rear directions correspond to the intersecting directions of the present invention. The upper side corresponds to one side of the intersecting direction.

[0074] For the sake of convenience, the portion of the guide rail portion 36 where both the first guide member 51 and the second guide member 52 are arranged in the traverse direction is referred to as a fall-off prevention portion 53 (see Figure 3 (b). That is, the fall-off prevention portion 53 is provided integrally with the guide rail portion 36. The fall-off prevention portion 53 is provided at least in the production area TRn (refer to Figure 3 The traverse guide 22 extends over the entire area of ​​(a). The fall-off prevention portion 53 restricts movement of the traverse guide 22 to both sides in the belt width direction and to both sides in the orthogonal direction. When the traverse guide 22 is in a position other than the removal position, the fall-off prevention portion 53 prevents the traverse guide 22 from falling off the endless belt 35.

[0075] Of the two limiting members 37, the limiting member 37 that defines one end of the movable region TRm in the traversing direction is defined as the first limiting member 37a, and the limiting member 37 that defines the other end is defined as the second limiting member 37b. The first limiting member 37a corresponds to the origin indicating member of the present invention. The first limiting member 37a is positioned opposite the attachment and detachment position across the production region TRn in the traversing direction and is positioned so as to be in contact with the traversing guide 22. The fall-off prevention portion 53 extends in the traversing direction to a position immediately adjacent to the first limiting member 37a. In other words, the fall-off prevention portion 53 is configured to prevent the traversing guide 22, once in contact with the first limiting member 37a, from falling off the endless belt 35.

[0076] In the traverse device 30 having the above-described configuration, it is possible to prevent the traverse guide 22 from falling off the endless belt 35 when determining the origin position (described later).

[0077] (Method for determining the origin position)

[0078] Next, refer to Figure 6 and Figure 7 An example of a method of determining the position of the origin of the position coordinates of the traverse guide 22 in the traverse direction (hereinafter referred to as simply the origin position) will be described. Figure 6 This is a flowchart showing a method for determining the origin position. Figure 7 (a) and Figure 7 (b) is a diagram showing the position of the traverse guide 22 when the origin position is determined.

[0079] Figure 7 (a) is a diagram showing the entire traverse device 30 . Figure 7 (b) is Figure 7 More specifically, Figure 7 (b) is a diagram showing an end portion of the traverse device 30 on one side in the traverse direction.

[0080] In the initial state, the traverse device 30 is attached to the yarn winding device 13. The traverse guide 22 is attached to the endless belt 35. The traverse guide 22 is arranged at an arbitrary position in the movable region TRm in the traverse direction (see FIG. Figure 7 (dashed line in (a)).

[0081] The control unit 26 executes the process of determining the origin position when the yarn winding device 13 is started. First, the control unit 26 sends a predetermined pulse signal to the traverse motor 32 to start the traverse guide 22 to move to one side in the traverse direction ( Figure 6 Step S101 shown. Figure 7The control unit 26 determines whether the traverse guide 22 is moving normally based on the signal output from the rotary encoder 32a.

[0082] While controlling the operation of the traverse motor 32, the control unit 26 determines whether the traverse guide 22 has contacted the first limiting member 37a (step S102). More specifically, in this embodiment, the traverse guide 22 is determined to have contacted the first limiting member 37a when, for example, a predetermined number of steps of desynchronization occur in the traverse motor 32 consecutively. Desynchronization here means that the angular position of the rotating shaft of the traverse motor 32 does not change normally when the control unit 26 sends a predetermined pulse signal to the traverse motor 32. The predetermined number of times can be, for example, 10. However, this is not limited to this. The control unit 26 continues to send pulse signals to the traverse motor 32 until it determines that the traverse guide 22 has contacted the first limiting member 37a (step S102: No).

[0083] When the control unit 26 determines that the traverse guide 22 has contacted the first restricting member 37a (step S102: Yes), it derives the origin position (step S103). When the traverse guide 22 has contacted the first restricting member 37a, the fall-off prevention unit 53 prevents the traverse guide 22 from falling off the endless belt 35. This prevents the traverse guide 22 from being lost or being entangled in the yarn winding device 13, for example.

[0084] The derivation of the origin position will be described in more detail. For ease of explanation, the position in the traverse direction of the traverse guide 22 that contacts the first restricting member 37a is referred to as the contact position. Furthermore, information regarding the length of the movable region TRm in the traverse direction (the aforementioned movable length) can be pre-determined based on, for example, design information or actual measurements. For example, the distance between the first restricting member 37a and the second restricting member 37b in the traverse direction can be pre-determined based on design information or actual measurements. Furthermore, the length of the traverse guide 22 in the traverse direction can be pre-determined based on, for example, design information or actual measurements. Based on this information, the movable length can be calculated. The control unit 26 derivates the origin position at a position, for example, half (i.e., 50%) of the movable length from the contact position in the traverse direction. 50% corresponds to the prescribed ratio of the present invention. Thus, the approximate center position of the movable region TRm in the traverse direction is derived as the origin position. It should be noted that the prescribed ratio may be an appropriate value other than 50%. The control unit 26 stores the origin position information in, for example, RAM. The origin position is set as described above.

[0085] As described above, in the traverse direction, the first limiting member 37a is positioned on the opposite side of the assembly / disassembly position across the production area TRn. As described above, the position of the origin can be determined using information about the contact position and the movable length. Furthermore, with this configuration, when the traverse guide 22 is brought into contact with the first limiting member 37a, there is no need to move the traverse guide 22 toward the assembly / disassembly position. Furthermore, in this embodiment, when the traverse guide 22 is in contact with the first limiting member 37a, the fall-off prevention portion 53 prevents the traverse guide 22 from falling off the endless belt 35. As described above, with a simple configuration, the origin position of the traverse guide 22 can be determined while preventing the traverse guide 22 from falling off the endless belt 35.

[0086] The traverse device 30 also includes a guide rail 36. Therefore, the guide rail 36 can stabilize the trajectory of the traverse guide 22 as it reciprocates within the production area TRn. Furthermore, the fall-off prevention portion 53 is integrally provided with the guide rail 36. Therefore, with a simple configuration, both preventing the traverse guide 22 from falling off when determining the origin position and stabilizing the trajectory of the traverse guide 22 within the production area TRn can be achieved.

[0087] Furthermore, the fall-off preventing portion 53 extends at least over the entire area of ​​the production region TRn in the traverse direction. Therefore, the traverse guide 22 can be prevented from falling off the endless belt 35 not only when determining the origin position but also when the traverse guide 22 reciprocates within the production region TRn.

[0088] Furthermore, the traverse motor 32 includes a servo motor capable of detecting positional information. This allows the origin position to be derived using positional information detected by the servo motor's rotary encoder 32a. More specifically, if there is a mismatch between the signal operating the servo motor and the positional information (i.e., if the servo motor loses sync), it can be determined that the traverse guide 22 has contacted the first limiting member 37a. This allows the origin position to be easily and accurately determined.

[0089] Furthermore, the first end of the first traversing device is arranged so as to overlap with the second end of the second traversing device in the front-to-back direction and is positioned above the second end in the top-to-bottom direction. If the first end is positioned below the second end, it may be necessary to remove the traversing device 30 from the yarn take-up device 13 in order to remove the traversing guide 22. In this regard, in the preferred configuration of this embodiment, it is not necessary to remove the traversing device 30 from the yarn take-up device 13 in order to remove the traversing guide 22. In this regard, in the preferred configuration of this embodiment, the traversing guide 22 can be easily removed from the traversing device 30 during maintenance, even without removing the traversing device 30 from the yarn take-up device 13.

[0090] Furthermore, if the traverse guide 22 accidentally falls off the traverse device 30, there is a risk that the traverse guide 22 may become entangled in components constituting the yarn take-up device 13, thereby hindering the operation of the yarn take-up device 13. In this regard, in this embodiment, the traverse guide 22 can be prevented from falling off the traverse device 30 when the origin position is determined. Therefore, it is possible to effectively prevent the traverse guide 22 from becoming entangled in components constituting the yarn take-up device 13.

[0091] Furthermore, in a large-scale yarn winding device 13 having a long bobbin holder 24 in the front-to-back direction, if the traverse guide 22 accidentally falls off the traverse device 30, it will be necessary to locate the traverse guide 22 within or around the wide area where the yarn winding device 13 is installed. This poses the risk of incurring a significant amount of labor and time loss before the yarn winding device 13 can begin operating. In such a configuration, the traverse device 30 of this embodiment is particularly effective.

[0092] Furthermore, the control unit 26 can easily and accurately determine the origin position.

[0093] Next, a modified example obtained by changing the above embodiment will be described. However, elements having the same configuration as the above embodiment are denoted by the same reference numerals, and their description will be omitted as appropriate.

[0094] (1) In the above embodiment, the traversing device 30 includes two limiting members 37 (a first limiting member 37a and a second limiting member 37b). However, this is not limiting. The traversing device 30 may not include the second limiting member 37b. For example, the traversing device 30 may include only the first limiting member 37a as the limiting member 37.

[0095] (2) In the embodiments described above, the fall-off preventing portion 53 extends at least over the entire production region TRn in the traverse direction. However, this is not limiting. The fall-off preventing portion 53 may be positioned so as to prevent only the traverse guide 22 in the contact position from falling off the endless belt 35.

[0096] (3) In the embodiments described above, the fall-off prevention portion 53 is integrally provided with the guide rail portion 36. However, this is not limiting. The fall-off prevention portion 53 may include a component different from the component constituting the guide rail portion 36. Alternatively, the fall-off prevention portion 53 may be provided independently of the guide rail portion 36. In this case, the guide rail portion 36 may not be provided.

[0097] (4) In the embodiments described above, the control unit 26 determines the origin position. However, this is not limiting. For example, a worker may determine the origin position and input the origin position information into the control unit 26 for storage. More specifically, for example, a worker may calculate the origin position based on the position information detected by the rotary encoder 32a using a method other than the control unit 26. Furthermore, the position information may be acquired using a method other than the rotary encoder 32a.

[0098] (5) In the above-described embodiments, the traverse device 30 is provided in the thread winding device 13. However, the present invention is not limited thereto and the traverse device 30 may be provided in a device for winding the thread other than the thread winding device 13.

Claims

1. A traverse device, characterized in that: The traversing device traverses the thread and comprises: a traverse wire guide configured to guide the wire; a drive belt on which the traverse yarn guide is mounted; a drive source capable of reciprocating the drive belt in a predetermined traverse direction, capable of changing a reciprocating area in which the traverse guide reciprocates within a predetermined movable area in the traverse direction, and capable of moving and driving the traverse guide to a detachable position, the detachable position being located outside a production area, the production area being the reciprocating area narrower than the movable area, and wherein the traverse guide is detachable relative to the drive belt; an origin indicating member disposed at a position opposite to the attachment and detachment position across the production area in the traverse direction and at a position capable of contacting the traverse guide, the origin indicating member being used to determine an origin position of the traverse guide; and The fall-off preventing portion is configured to prevent the traverse guide in contact with the origin indicating member from falling off from the driving belt.

2. The traverse device according to claim 1, characterized in that The fall-off prevention portion extends at least over the entire production area in the traverse direction.

3. The traverse device according to claim 1 or 2, characterized in that: The driving source includes a servo motor configured to detect position information related to the position of the traverse guide in the traverse direction.

4. The traversing device according to any one of claims 1 to 3, characterized in that The traversing device comprises a guide rail, which is arranged at least in the production area in the traversing direction and guides the traversing yarn guide. The fall-off prevention portion is provided integrally with the guide rail.

5. A wire winding device, characterized in that: include: a bobbin holder extending in a predetermined axial direction and arranging and supporting a plurality of bobbins around which a plurality of threads are wound, respectively, in the axial direction; as well as A plurality of traverse devices according to any one of claims 1 to 4 arranged in the axial direction corresponding to the plurality of wires, The plurality of traverse devices are arranged so as to be accessible from one side in a predetermined intersecting direction intersecting the axial direction. The first end portion of the first traversing device is configured to overlap with the second end portion of the second traversing device in the axial direction, wherein the first traversing device is one of the plurality of traversing devices, the first end portion is an end portion of the first traversing device on the side of the mounting and dismounting position in the traversing direction, the second traversing device is a traversing device among the plurality of traversing devices that is configured adjacent to the first traversing device in the traversing direction, the second end portion is an end portion of the second traversing device on the side opposite to the mounting and dismounting position in the traversing direction, and The first end portion is arranged closer to the one side than the second end portion in the intersecting direction.

6. The wire winding device according to claim 5, characterized in that: The drive source includes a servo motor configured to detect position information regarding the position of the traverse guide in the traverse direction. The wire winding device includes a control unit, The control unit is composed of: controlling the servo motor to move the traverse guide to a contact position with the origin indicating member, Using the position information, it is determined whether the traverse guide has contacted the origin indicating component. Using the position information indicating the contact position and information on the predetermined length of the movable region, a position separated from the contact position by a predetermined ratio of the length of the movable region in the traverse direction is set as the origin position.

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