Method for changing yarn supply package to creel stand, yarn supply package supply system, and yarn supply package supply device

Abstract

To provide a yarn feeding package replacement method that can reduce a work burden on a worker and ensure that a yarn feeding package that has run out of yarn can be replaced with a new yarn feeding package.SOLUTION: A yarn feeding package replacement method includes the steps of: attaching a bobbin mounting member to a yarn feeding package to which no bobbin mounting member is attached; removing a yarn feeding package with the bobbin mounting member attached, from a storage part by a yarn feeding package supply device; identifying support part identification information by an identification mechanism, the information being held on the bobbin mounting member attached to the yarn feeding package; attaching the yarn feeding package by the yarn feeding package supply device, to a support part identified based on the support part identification information; removing a bobbin of the yarn feeding package that has run out of yarn from the support part; removing the bobbin mounting member from the bobbin taken out from the support part; and attaching the bobbin mounting member to the yarn feeding package.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a method for changing a yarn supply package to a creel stand, a yarn supply package supply system, and a yarn supply package supply device. [Background technology]

[0002] BACKGROUND ART There is known a false twisting machine that unwinds a synthetic fiber yarn from a yarn supply package in which the yarn is wound around a bobbin, false-twists the unwound yarn, and winds the processed yarn on a winding device to form a winding package. The false twisting machine is provided with a creel stand having a plurality of support members that support a plurality of yarn supply packages, respectively. For example, Patent Document 1 discloses a yarn supply stand that is provided with pairs of support members (pegs) that support a plurality of yarn supply packages, respectively. In such a yarn supply stand, a yarn splicing process (tail splicing process) is performed to join the yarn of a yarn supply package supported by one of the pair of support members with the yarn of a yarn supply package supported by the other of the pair of support members. This allows the yarn to be supplied to the false twisting device from the other yarn supply package, which is provided as a spare, even if the yarn in one yarn supply package runs out.

[0003] In such a creel stand, yarn is continuously unwound from a pair of yarn supply packages, and when the yarn in one of the yarn supply packages runs out, the bobbin with no yarn (empty bobbin) is removed from the support. Out A new yarn supply package must be supplied to the support section. To supply such a new yarn supply package, an operator carries the yarn supply package from a storage section where multiple yarn supply packages are stored to the creel stand, and the bobbin is removed. Out The yarn package is placed on the support attachment However, the yarn supply package is heavy, which places a heavy burden on the worker. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Special Publication No. 7-68010 Summary of the Invention [Problem to be solved by the invention]

[0005] Therefore, as disclosed in Patent Document 1, a yarn supply package exchange system is known that includes a yarn supply package exchange device that transports a yarn supply package to a creel stand, determines whether the yarn supply package supported on the creel stand is empty, and replaces the yarn supply package that is determined to be empty with a full yarn supply package.

[0006] In this yarn supply package changing system, two sensors are provided in the yarn supply package changing device, and the state of each yarn supply package supported on the creel stand is determined to be empty or not based on the relationship between the pair of yarn supply packages and the two sensors. Specifically, the yarn supply package changing device scans the two sensors to obtain signals, and determines the state of each yarn supply package supported on the creel stand as one of three levels (full, half, small, or empty). After determining that one yarn supply package is in a small or empty state, the system determines whether the first yarn supply package is in a small or empty state based on the state of the paired yarn supply package. If the paired yarn supply package is in a full state, it cannot be determined that the first yarn supply package is empty because it cannot be said that yarn switching between the two yarn supply packages has been performed reliably. If the paired yarn supply package is in a half-full state, it determines that the first yarn supply package is empty because yarn switching between the two yarn supply packages has been performed.

[0007] However, in this yarn supply package supply system, the timing for determining the state of each yarn supply package cannot be detected until the paired package goes from full to half full, so that time is wasted, and it may take a long time for a yarn supply package to be determined to be empty after it actually becomes empty, or the determination may be missed, and the yarn supply package replacement device may not be able to replace an empty yarn supply package with a full yarn supply package. Therefore, this yarn supply package replacement system cannot reliably replace a yarn supply package that has run out of yarn with a new yarn supply package.

[0008] In addition, there is a yarn supply package replacement method in which, instead of using a yarn supply package replacement device, an operator confirms that a yarn supply package has become empty, removes the empty bobbin from the yarn supply package, and uses a yarn supply package installation device to attach a full yarn supply package to the support section where the yarn supply package is no longer supported.

[0009] However, in this yarn supply package replacement method, an operator must input the position information of the support portion where the yarn supply package is no longer supported into the yarn supply package installation device. However, due to an operator inputting the position information incorrectly or a communication failure of the position information to the yarn supply package installation device, the position information may not be input accurately to the yarn supply package installation device, and the yarn supply package installation device may not be able to install the yarn supply package at the desired support portion. Therefore, this yarn supply package replacement method cannot reliably replace a yarn supply package that has run out of yarn with a new yarn supply package.

[0010] Therefore, an object of one aspect of the present invention is to provide a method for changing a yarn supply package to a creel stand, which can reduce the workload of an operator and, when a yarn supply package supported by a support part of the creel stand runs out of yarn, can reliably replace the yarn supply package with a new yarn supply package in a creel stand having multiple support parts.Another object of one aspect of the present invention is to provide a yarn supply package supply device and a yarn supply package supply system to a creel stand for implementing such a yarn supply package changing method to a creel stand. [Means for solving the problem]

[0011] A method for changing a yarn supply package to a creel stand according to one aspect of the present invention is a method for changing a yarn supply package to a creel stand using a yarn supply package supply system including: a storage section for storing a plurality of yarn supply packages, each of which has a synthetic fiber yarn wound around a bobbin; a creel stand having a plurality of support sections for supporting the yarn of the yarn supply package so that it can be unwound; a yarn supply package supply device for removing a yarn supply package from the storage section and attaching the yarn supply package to the support sections of the creel stand; bobbin attachment members provided corresponding to each of the plurality of support sections and detachable from the bobbins, the bobbin attachment members holding support section identification information for identifying the corresponding support section; and a recognition mechanism for recognizing the support section identification information held on the yarn supply package, The method includes a first step of attaching a bobbin attachment member to a yarn supply package stored in a storage section that does not have a bobbin attachment member attached thereto; a second step of a yarn supply package supplying device removing from the storage section the yarn supply package to which the bobbin attachment member has been attached in the first step; a third step of a recognition mechanism recognizing support section identification information held on the bobbin attachment member attached to the yarn supply package removed by the yarn supply package supplying device in the second step; a fourth step of a yarn supply package supplying device attaching the yarn supply package to a support section identified based on the support section identification information recognized by the recognition mechanism in the third step; and a fourth step of removing from the support section a bobbin of a yarn supply package that has run out of yarn among the yarn supply packages attached to the support section by the yarn supply package supplying device in the fourth step. Out In the fifth step, the support portion is removed. Out a sixth step of removing the bobbin mounting member from the bobbin attached in the sixth step; and a seventh step of using the bobbin mounting member removed in the sixth step as the bobbin mounting member attached in the first step.

[0012] In this method, by repeating the first to seventh steps, when the yarn in the yarn supply package supported on the support portion of the creel stand runs out, the yarn supply package from which the yarn has run out can be reliably replaced with a new yarn supply package. attachmentSince the yarn supply package supplying device performs the work of removing the yarn from the yarn supply package, the burden on the worker can be reduced. In other words, the burden on the worker can be reduced, and when the yarn in the yarn supply package supported on the support portion of the creel stand runs out, the yarn supply package from which the yarn has run out can be reliably replaced with a new yarn supply package.

[0013] In a fourth step of the method for changing a yarn supply package to a creel stand according to one aspect of the present invention, the yarn supply package supply device may move to a position where the support part identified based on the support part identification information recognized by the recognition mechanism in the third step is located. In this method, even if there is a distance between the storage part and the creel stand, the yarn supply package supply device carries the yarn supply package from the storage part to the creel stand and attaches it to the support part of the creel stand, thereby further reducing the workload of the worker.

[0014] A yarn supply package supply system according to one aspect of the present invention includes a storage section that stores a plurality of yarn supply packages in which a yarn made of synthetic fiber is wound around a bobbin; a creel stand having a plurality of support sections that support the yarn of the yarn supply package so that it can be unwound; a yarn supply package supply device having a supply mechanism that removes a yarn supply package from the storage section and attaches the yarn supply package to the support sections of the creel stand; a recognition mechanism that recognizes support section identification information held on the yarn supply package; and a control device that controls the yarn supply package supply device and the recognition mechanism.The support section identification information is provided corresponding to each of the plurality of support sections and is preset information that can identify the corresponding support section.The control device controls the yarn supply package supply device to attach the yarn supply package removed from the storage section to the support section identified based on the support section identification information recognized by the recognition mechanism.

[0015] According to this configuration, a new yarn supply package can be attached to the support portion of the creel stand when the yarn of the yarn supply package has run out. attachmentSince the yarn package supplying device performs the above work, the workload of the worker can be reduced.

[0016] In a yarn supply package supply system according to one aspect of the present invention, the yarn supply package supply device may have a main body in which the supply mechanism is provided and a moving mechanism for moving the main body, and the control device may control the moving mechanism to move the main body to a position where a support part identified based on the support part identification information is located. With this configuration, even if there is a distance between the storage part and the creel stand, the yarn supply package supply device transports the yarn supply package from the storage part to the creel stand and attaches it to the support part of the creel stand, thereby further reducing the workload of the worker.

[0017] In a yarn supply package supply system according to one aspect of the present invention, the recognition mechanism may be provided in the main body together with the supply mechanism, and the control device may control the supply mechanism to retrieve a yarn supply package that holds the support unit identification information recognized by the recognition mechanism. With this configuration, the yarn supply package supply device can receive only a yarn supply package with a bobbin attachment member attached from the storage unit. This allows the retrieved yarn supply package to be reliably attached to the support unit of the creel stand.

[0018] In a yarn supply package supply system according to one aspect of the present invention, the recognition mechanism may be provided in the storage section and attached to each of the storage support sections that support a plurality of yarn supply packages in the storage section, and the control device may control the supply mechanism to retrieve a yarn supply package that holds the support section identification information recognized by the recognition mechanism. With this configuration, the yarn supply package supply device can receive only yarn supply packages with bobbin attachment members attached from the storage section, so that the retrieved yarn supply packages can be reliably attached to the support sections of the creel stand.

[0019] In the yarn supply package supply system according to one aspect of the present invention, a bobbin mounting member that covers one opening of the cylindrically formed bobbin is detachably attached to the bobbin. FittedThe support portion specifying information may be held by the bobbin mounting member. According to this configuration, the support portion specifying information can be easily and detachably attached to the yarn supply package.

[0020] In the yarn supply package supply system according to one aspect of the present invention, the bobbin mounting member may be provided with an IC tag storing the support portion identification information, and the recognition mechanism may be an IC tag reader capable of reading the support portion identification information stored in the IC tag. With this configuration, the support portion identification information can be easily held in the bobbin mounting member, and the support portion identification information stored in the bobbin mounting member can be easily recognized.

[0021] A yarn supply package supply device according to one aspect of the present invention is a yarn supply package supply device that retrieves a yarn supply package from a storage section that stores a plurality of yarn supply packages in which a yarn made of synthetic fiber is wound around a bobbin, and attaches the yarn supply package to each support section of a creel stand that has a plurality of support sections that support the yarn of the yarn supply package so that it can be unwound. The yarn supply package supply device includes a supply mechanism that retrieves the yarn supply package from the storage section and attaches the yarn supply package to each support section, a recognition mechanism that recognizes support section identification information held on the yarn supply package, and a control unit that controls the supply mechanism and the recognition mechanism. The support section identification information is provided corresponding to each of the plurality of support sections and is preset information that can identify the corresponding support section, and the control unit controls the supply mechanism to attach the yarn supply package retrieved from the storage section to a support section identified based on the support section identification information recognized by the recognition mechanism.

[0022] According to this configuration, a new yarn supply package can be reliably attached to the support portion of the creel stand when the yarn of the yarn supply package supported by the support portion has run out. attachment Since the yarn package supplying device performs the above work, the workload of the worker can be reduced.

[0023] A yarn supply package supply device according to one aspect of the present invention may further include a main body unit including a supply mechanism and a recognition mechanism, and a movement mechanism for moving the main body unit, wherein the control unit controls the movement mechanism to move the main body unit to a position where a support unit identified based on the support unit identification information is located. With this configuration, even if there is a distance between the storage unit and the creel stand, the yarn supply package supply device transports the yarn supply package from the storage unit to the creel stand and attaches it to the support unit of the creel stand, thereby further reducing the workload of the operator.

[0024] In the yarn supply package supply device according to one aspect of the present invention, when the recognition mechanism recognizes the support unit identification information held in the yarn supply package in the storage unit, the control unit may control the supply mechanism to retrieve the yarn supply package holding the support unit identification information recognized by the recognition mechanism. With this configuration, the yarn supply package supply device can receive only the yarn supply package with the bobbin attachment member attached from the storage unit, so that the retrieved yarn supply package can be reliably attached to the support unit of the creel stand.

[0025] In the yarn supply package supply device according to one aspect of the present invention, a bobbin mounting member that covers one opening of the cylindrically formed bobbin is detachably attached to the bobbin. Fitted The support portion specifying information may be held by the bobbin attachment member. According to this configuration, the support portion specifying information can be easily and detachably attached to the yarn supply package.

[0026] In the yarn supply package supply device according to one aspect of the present invention, the bobbin mounting member may be provided with an IC tag storing the support portion identification information, and the recognition mechanism may be an IC tag reader capable of reading the support portion identification information stored in the IC tag. With this configuration, the support portion identification information can be easily held in the bobbin mounting member, and the support portion identification information stored in the bobbin mounting member can be easily recognized by the recognition mechanism. [Effects of the Invention]

[0027] According to one aspect of the present invention, the workload of an operator can be reduced, and in a creel stand having multiple support parts, when a yarn supply package supported on a support part of the creel stand runs out of yarn, the yarn supply package that has run out of yarn can be reliably replaced with a new yarn supply package at that support part. [Brief explanation of the drawings]

[0028] [Figure 1] FIG. 1 is a diagram showing the configuration of a false twisting system including a yarn supply package supply system according to one embodiment. [Figure 2] FIG. 2 is a perspective view showing a yarn supply package with a cap attached. [Figure 3] FIG. 3 is a perspective view showing a creel stand that constitutes the yarn supplying unit 5. As shown in FIG. [Figure 4] FIG. 4 is a perspective view showing a yarn supply package storage device included in the yarn supply package supply system. [Figure 5] Fig. 5(A) is a side view showing a yarn supplying bobbin with a cap attached, Fig. 5(B) is a side view showing a yarn supplying package with a cap attached to the yarn supplying bobbin, and Fig. 5(C) is a front view showing the cap. [Figure 6] FIG. 6 is a perspective view showing a package supply device included in the yarn supply package supply system. [Figure 7] FIG. 7 is a top view showing a state in which the package supply device attaches a supply yarn package to a peg of the creel stand. [Figure 8] FIG. 8 is a block diagram showing the functional configuration of the yarn supply package supply system. [Figure 9] 9(A) and 9(B) are diagrams illustrating a yarn supply package changing method using the yarn supply package supply system. [Figure 10] 10(A) and 10(B) are diagrams illustrating a yarn supply package changing method using the yarn supply package supply system. DETAILED DESCRIPTION OF THE INVENTION

[0029] Hereinafter, a yarn supply package supply system 10 according to one embodiment will be described with reference to the drawings. In the description of the drawings, the same elements are given the same reference numerals, and duplicated description will be omitted.

[0030] A yarn supply package supply system 10 according to one embodiment constitutes a part of a false twisting system 1. As shown in Fig. 1, the false twisting system 1 includes a false twisting machine 2, a transport rack 3, a yarn supplying unit 5, a yarn supply package storage device (storage section) 6, and a yarn supply package supply device 7. The yarn supply package supply system 10 is made up of the yarn supplying unit 5, the yarn supply package storage device 6, and the yarn supply package supply device 7. In the following description, the "Z direction" shown in the drawings is the vertical direction (up and down direction), the "X direction" is the horizontal direction, and the "Y direction" is the horizontal direction perpendicular to both the X direction and the Z direction.

[0031] The false twisting system 1 processes yarn Y supplied from multiple yarn supply packages P (see FIG. 2) to produce a winding package. The yarn Y is a synthetic yarn made of a thermoplastic synthetic fiber such as polyester or polyamide. The yarn supply package P is formed by winding a partially oriented yarn (POY: Partially Oriented Yarn) around a yarn supply bobbin (bobbin) B. The winding package is formed by winding a draw textured yarn (DTY: Draw Textured Yarn) around a winding bobbin (not shown).

[0032] The false twisting machine 2 applies false twisting to the yarn Y supplied from a plurality of yarn supply packages P, and winds the processed yarn onto a winding bobbin to form a winding package.

[0033] The transport rack 3 transports the yarn supply package P. The transport rack 3 is configured to be able to transport multiple yarn supply packages P. The transport rack 3 holds the yarn supply package P, for example, by being inserted into a yarn supply bobbin B of the yarn supply package P. The transport rack 3 is provided with wheels, allowing it to be easily moved by hand. Note that the transport rack 3 may also have a drive unit and be configured to travel automatically. The transport rack 3 transports the yarn supply package P between a supply location where the yarn supply package P is supplied and a predetermined yarn supply package storage device 6.

[0034] As described above, the yarn supply package supply system 10 includes a yarn supply unit 5, a yarn supply package storage device 6, and a yarn supply package supply device 7. The yarn supply unit 5 is disposed adjacent to the false twisting machine 2 and supplies yarn to the false twisting machine 2. The yarn supplying unit 5 is disposed opposite the winding table 2b of the false twisting machine 2 in the X direction. The yarn supplying unit 5 extends along the Y direction. The yarn supplying unit 5 has a plurality of creel stands 20. Each creel stand 20 holds a yarn supply package P. A plurality of creel stands 20 are arranged along the Y direction. In the yarn supplying unit 5 according to this embodiment, a pair of creel stands 20 are arranged back-to-back in the X direction.

[0035] As shown in FIGS. 1 and 3, the creel stand 20 includes a creel base 21, a first support pillar 22, a second support pillar 23, a partition plate 24, and a peg (support) 25. The creel base 21 is installed on a floor or the like and supports the first support pillar 22 and the second support pillar 23. The first support pillar 22 and the second support pillar 23 are erected on the creel base 21. The first support pillar 22 extends in the Z direction (vertical direction). The first support pillars 22 are arranged at equal intervals in the Y direction. The first support pillars 22 are arranged on one side F1 of the creel stand 20 in the X direction. The one side F1 in the X direction is the side where the false twisting machine 2 is installed and from which the yarn Y is fed to the false twisting machine 2 for false twisting.

[0036] The second support pillars 23 extend along the Z direction. The second support pillars 23 are arranged in pairs in the Y direction, and multiple pairs of second support pillars 23, 23 are arranged in the Y direction. The second support pillars 23 are arranged on the other side F2 in the X direction of the creel stand 20. The other side F2 in the X direction is the side on which a yarn supply package supply device 7, which will be described in detail later, travels, and is the side on which an operator performs operations such as changing a yarn package and splicing. A first support pillar 22 group consisting of multiple first support pillars 22 and a second support pillar 23 group consisting of multiple second support pillars 23 are arranged opposite each other in the X direction.

[0037] The partition plate 24 is provided so as to straddle the first support pillar 22 and the second support pillar 23. The partition plate 24 is a plate-shaped member and is arranged at a predetermined interval in the Z direction. The partition plate 24 prevents the yarn supply package P from falling off the peg 25.

[0038] The pegs 25 support the yarn supply package P. The pegs 25 are provided on the second support pillars 23. A plurality of the pegs 25 are arranged at predetermined intervals on the second support pillars 23 in the Z direction. The pegs 25 are arranged between the two partition plates 24 in the Z direction. The pegs 25 are arranged in pairs corresponding to the second support pillars 23, 23 arranged in pairs, and a plurality of pairs of pegs 25, 25 are arranged in the Y direction.

[0039] With the pegs 25 configured as described above, it is possible to connect the yarn Y of a yarn supply package P supported by one of the pair of pegs 25 to the yarn Y of a yarn supply package P supported by the other of the pair of pegs 25. Specifically, the outer layer yarn end of the yarn Y of the yarn supply package P supported by one of the pair of pegs 25 is connected to the inner layer yarn end of the yarn Y of the yarn supply package P supported by the other of the pair of pegs 25, or the inner layer yarn end of the yarn Y of the yarn supply package P supported by one of the pair of pegs 25 is connected to the outer layer yarn end of the yarn Y of the yarn supply package P supported by the other of the pair of pegs 25. In this way, one yarn is supplied from two yarn supply packages P, P supported by each of the pair of pegs 25, 25. In other words, the yarn Y can be continuously supplied to the false twisting machine 2.

[0040] The peg 25 has a yarn supply package support member 251 and a peg main body 252. The yarn supply package support member 251 supports the yarn Y of the yarn supply package P so that it can be unwound. The yarn supply package support members 251 are a pair of rod-shaped members extending in one direction. The pair of yarn supply package support members 251 extend in one direction and are arranged parallel to each other at a predetermined distance. The yarn supply package support member 251 supports the yarn supply package P by inserting the rod-shaped member extending from the base end to the tip end into a hole formed in the yarn supply bobbin B of the yarn supply package P. The peg 25 supports the yarn supply package P at two points using the two yarn supply package support members 251.

[0041] The peg body 252 supports the two yarn supply package support members 251. The peg body 252 is provided so that the yarn supply package support members 251, 251 can rotate about a rotation axis extending in the Z-axis direction. An insertion hole is formed in the peg body 252, and the second support post 23 of the creel stand 20 is inserted into the insertion hole.

[0042] In the configuration of the peg 25 having the yarn supply package support member 251 and the peg body 252, the worker can manually rotate the peg 25. For example, when the worker removes the yarn supply bobbin B from the yarn supply package P, the yarn Y has run out. Out When replacing the yarn supply package P or attaching a new yarn supply package P, the peg 25 is rotated so that the tip of the yarn supply package support member 251 faces the F2 side shown in FIG. 3, and when supplying the yarn Y to the false twisting machine 2, the peg 25 is rotated so that the tip of the yarn supply package support member 251 faces the F1 side shown in FIG. 3.

[0043] 1 and 4 temporarily stores the yarn supply package P delivered from the transport rack 3, and supplies the yarn supply package P to a yarn supply package supply device 7, which will be described later in detail. The yarn supply package storage device 6 also allows an operator to attach a cap (bobbin mounting member) 11 to the yarn supply package P temporarily stored therein. Put on The yarn supply package storage device 6 is installed at a position where the yarn supply package P can be handed over between the transport rack 3 and the yarn supply package supply device 7.

[0044] The supplied yarn package storage device 6 includes a package holding unit 61 , a rotating unit 62 , a lower base unit 63 , an upper base unit 64 , a driving unit 65 , and a control unit 66 .

[0045] The package holding units 61 hold yarn supply packages P (see FIG. 2). In this embodiment, a plurality of (e.g., 16) package holding units 61 are provided, and the yarn supply package storage device 6 is configured to store a plurality of yarn supply packages P. The package holding units 61 have yarn supply package holding members (storage support units) 611. The yarn supply package holding members 611 are attached to the rotating unit 62. The yarn supply package holding members 611, 611 are a pair of rod-shaped members extending in one direction. The pair of yarn supply package holding members 611, 611 extend in one direction and are arranged parallel to each other at a predetermined interval. The yarn supply package holding members 611, 611 hold the yarn supply package P by inserting the rod-shaped members extending from the base end to the tip end into holes formed in the yarn supply bobbin B of the yarn supply package P. The tip ends of the yarn supply package holding members 611, 611 are arranged so as to face outward in a plan view of the yarn supply package storage device 6 seen from above.

[0046] The rotating unit 62 is a member that rotates relative to the lower base unit 63 and the upper base unit 64. Specifically, the rotating unit 62 is provided such that a roller provided on the rotating unit 62 can roll on the upper surface of the lower base unit 63. The rotating unit 62 moves on the upper surface of the lower base unit 63 along the edge of the lower base unit 63. In this embodiment, a plurality of (e.g., four) rotating units 62 are provided, and a plurality of (e.g., four) supply package holding members 611 are attached to the plurality of rotating units 62. That is, the supply package storage device 6 of this embodiment is configured to be able to store 16 supply packages P.

[0047] The lower base portion 63 supports the rotating portion 62 so that it can roll. The lower base portion 63 supports the upper base portion 64 via support members 631. The upper base portion 64 is disposed above the lower base portion 63. The upper base portion 64 has a housing structure and houses a motor 651 and a control portion 66. The drive portion 65 has a motor 651 and a drive mechanism 652. The motor 651 is housed in the upper base portion 64. The drive mechanism 652 is made up of gears, a shaft, etc., and transmits the drive force generated in the motor 651 to the rotating portion 62.

[0048] The control unit 66 is housed in the upper base unit 64. The control unit 66 controls the driving of the motor 651. The control unit 66 controls the motor 651 to rotate the rotating unit 62, so that the package holding unit 61 that does not hold a supply package P faces the transport rack 3 side, and the package holding unit 61 that holds a supply package P faces the supply package supply device 7 side.

[0049] Here, the yarn supply package P will be described in detail. As shown in FIG. 2, the yarn supply package P is formed by winding a semi-oriented yarn (POY) around a yarn supply bobbin B. The yarn supply bobbin B is a cylindrical member made of a material such as paper. A cap 11 is attached to the end of the yarn supply bobbin B. Fitted can be.

[0050] Next, the yarn supply package P Fitted The cap 11 will be described below. As shown in Fig. 2, Fig. 5(A) and Fig. 5(B), the cap 11 is a component that is detachably attached to the opening at the end of the yarn supplying bobbin B. The cap 11 is made of a material such as resin. The cap 11 mainly has a ring-shaped flange portion 11a and a cylindrical tubular portion 11b that stands upright from the inner edge of the flange portion 11a. The cap 11 is fitted onto the yarn supplying bobbin B so that the inner peripheral surface of the tubular portion 11b comes into contact with the outer peripheral surface of the yarn supplying bobbin B. Fitted can be.

[0051] The caps 11 are provided corresponding to each of the multiple pegs 25. For example, if the creel stand 20 has 32 pegs 25, 32 caps 11, the same number as the pegs 25, are prepared, and each of the 32 caps 11 is assigned peg-identifying information (support portion identifying information) that identifies the corresponding peg 25. That is, the caps 11 hold peg-identifying information that identifies the corresponding peg 25. Furthermore, in this embodiment, one cap 11 is provided for each peg 25, and two or more caps 11 each holding peg-identifying information corresponding to a single peg 25 are not prepared for a single peg 25. The peg-identifying information is configured as an identification unit 13 that can be recognized by a recognition mechanism 79, which will be described in detail later. The identification unit 13 is attached to the flange 11a of the cap 11.

[0052] Next, the identification unit 13 will be described in detail. An example of the identification unit 13 is an RF (Radio Frequency) tag (IC tag), which is a well-known recording medium capable of recording information. The information recorded in the RF tag can be read by an RFID (Radio Frequency Identifier) ​​reader (IC tag reader) serving as the recognition mechanism 79, which will be described later. That is, the RF tag serving as the identification unit 13 is recognized as peg-specific information by the RFID reader serving as the recognition mechanism 79.

[0053] 1 and 6 takes out a yarn supply package P from the yarn supply package storage device 6 and attaches the taken-out yarn supply package P to the creel stand 20. More specifically, the yarn supply package supply device 7 attaches the yarn supply package P taken out from the yarn supply package storage device 6 to a peg 25 to which no yarn supply package P is attached. The yarn supply package supply device 7 is provided so as to be movable along the extension direction (Y direction) of a rail R laid on the floor surface along the extension direction of the yarn supply unit 5 (creel stand 20).

[0054] The yarn supply package supply device 7 includes a package holding unit 71, a first support unit 72, a main body unit 73, a base unit 74, a second support unit 75, a first drive unit 76, a second drive unit 77, a third drive unit 78, a recognition mechanism 79, and a control unit (control device) 80A. The package holding unit 71, the first support unit 72, the main body unit 73, the second support unit 75, the first drive unit 76, and the second drive unit 77 constitute a supply mechanism as defined in the present invention. The base unit 74 and the third drive unit 78 constitute a movement mechanism as defined in the present invention.

[0055] The package holding unit 71 holds a yarn supply package P (see FIG. 2). The package holding unit 71 has a yarn supply package holding member 711. The yarn supply package holding members 711, 711 are a pair of rod-shaped members extending in one direction. The pair of yarn supply package holding members 711, 711 extend in one direction and are arranged parallel to each other at a predetermined distance. The yarn supply package holding members 711, 711 hold the yarn supply package P by inserting the rod-shaped members extending from the base end to the tip end into holes formed in the yarn supply bobbin B of the yarn supply package P.

[0056] The first support portion 72 is provided so as to be movable in the Y direction along a main body portion 73 extending in the vertical direction. The first support portion 72 supports the package holding portion 71 via a guide member 72A so as to be slidable in the X direction. The first support portion 72 is attached to the main body portion 73 so as to be movable via a linear guide or the like. The main body portion 73 is erected on a base portion 74. The first support portion 72 moves in the Z direction along the main body portion 73 by the driving force of a first drive portion 76.

[0057] The second support portion 75 is provided so as to be movable in the X direction relative to the first support portion 72. The second support portion 75 supports the package holding portion 71 by suspending it. The second support portion 75 moves in the X direction relative to the first support portion 72, thereby moving the package holding portion 71 in the X direction relative to the first support portion 72. The second support portion 75 moves in the X direction by the driving force of the second drive portion 77.

[0058] The first drive unit 76 and the second drive unit 77 are controlled by a control unit 80A. The first drive unit 76 and the second drive unit 77 are connected to the control unit 80A via a cable 80B. The control unit 80A is housed in a housing 80 attached to the main body 73. Furthermore, the first drive unit 76 and the second drive unit 77 are supplied with power via a cable connected to an external power source (not shown) and the cable 80B.

[0059] A drive wheel 74a is provided on the base unit 74. The drive wheel 74a rolls on a rail R. The drive wheel 74a is driven by a third drive unit 78 and travels on the rail R. That is, the yarn supply package supply device 7 moves in the Y direction by being driven by the third drive unit 78. The third drive unit 78 is controlled by a control unit 80A. The third drive unit 78 is connected to the control unit 78A via a cable (not shown). Furthermore, the third drive unit 78 is supplied with power via a cable connected to an external power source (not shown) and a cable 80B.

[0060] The recognition mechanism 79 is a mechanism that recognizes an RF tag serving as the identification unit 13 fixed to the cap 11 attached to the yarn supply package P. The recognition mechanism 79 of this embodiment is an RFID reader that can read information stored in the RF tag. The information recognized by the recognition mechanism 79 is acquired by the control unit 80A. The information recognized by the recognition mechanism 79 is acquired by the control unit 80A via, for example, a cable 80B. The recognition mechanism 79 is configured to read the identification unit 13 when the yarn supply package P is inserted into the yarn supply package holding members 711, 711.

[0061] Specifically, when a yarn supply package P is inserted into the yarn supply package holding members 711, 711, the magnetic field emitted by the RFID reader acts on the RF tag, causing the RF tag to become electrically charged. This causes the RF tag to transmit the peg-identifying information stored in the RF tag to the outside, and the RFID reader acquires that information. By appropriately adjusting the strength of the magnetic field output by the RFID reader in this way, the RFID reader is configured to read only the RF tag attached to the yarn supply package P inserted into the yarn supply package holding members 711, 711. In other words, the RFID reader is configured not to read unintended peg-identifying information.

[0062] The control unit 80A controls the first drive unit 76, the second drive unit 77, the third drive unit 78, and the recognition mechanism 79. The control unit 80A is housed in a housing 80 attached to the main body 73. The control unit 80A is communicatively connected to the first drive unit 76, the second drive unit 77, the third drive unit 78, and the recognition mechanism 79 via the above-mentioned cable 80B or the like.

[0063] The control unit 80A controls the first drive unit 76, the second drive unit 77, and the third drive unit 78 to cause the yarn supply package supply device 7 to take out a yarn supply package P from the package holding unit 61 of the yarn supply package storage device 6. If the recognition mechanism 79 does not recognize the identification unit 13 when the package holding unit 71 attempts to take out a yarn supply package P from the package holding unit 61, the control unit 80A controls the first drive unit 76 and the second drive unit 77 to cancel the attempt to take out the yarn supply package P. In other words, the control unit 80A controls the first drive unit 76 and the second drive unit 77 to take out the yarn supply package P that holds the peg identification information recognized by the recognition mechanism 79 only when the recognition mechanism 79 recognizes the peg identification information held in the yarn supply package P in the yarn supply package storage device 6.

[0064] The control unit 80A controls the first drive unit 76 and the second drive unit 77 so as to attach the yarn supply package P taken out from the yarn supply package storage device 6 to the peg 25 identified based on the peg identification information recognized by the recognition mechanism 79. The control unit 80A controls the third drive unit 78 so as to move the main body unit 73 to the position where the peg 25 identified based on the peg identification information is located. Through such control by the control unit 80A, the yarn supply package P taken out from the yarn supply package storage device 6 is attached to the peg 25 identified based on the peg identification information recognized by the recognition mechanism 79.

[0065] Next, a method for changing a yarn supply package to the creel stand 20 using the above-mentioned yarn supply package supply system 10 will be described mainly with reference to Figures 9(A), 9(B), 10(A), and 10(B). The method for changing a yarn supply package to the creel stand 20 involves preparing the caps 11 in the same number as the pegs 25 provided on the creel stand 20, and storing in advance in each of the caps 11 peg identification information, which is information for identifying the corresponding peg 25. The method for storing the peg identification information in the caps 11 is performed by attaching to the caps 11 an identification unit 13 in which the peg identification information is recorded.

[0066] An example of peg-identifying information will now be described. For example, as shown in FIG. 9(A), the peg-identifying information can be configured by a combination of a row number, a tier number, and a left-right symbol. The row number is a number assigned to each pair of pegs 25, 25 from one side in the extension direction of the creel stand 20, and is assigned numbers such as I, II, III, etc. The tier numbers are assigned to pairs of pegs 25, 25 with the same row number, in order from bottom to top, such as 1, 2, 3, etc. The left-right symbol is a symbol such as L or R assigned to each pair of pegs 25, 25 identified by the row number and tier number, based on whether they are on the right or left side when viewed from the working side of the creel stand 20 (side F2 shown in FIG. 3). In this way, peg-identifying information such as "I·2·L" or "II·1·R" can be configured.

[0067] The yarn supply package replacement method of this embodiment includes the following first to seventh steps. In these steps, yarn supply packages P are attached to all pegs 25 of the creel stand 20, and caps 11 holding (providing) peg identification information corresponding to the attached pegs 25 are attached to all yarn supply packages P. Fitted The description will be given on the assumption that the false twisting system 1 is put into operation from this state.

[0068] For example, as shown in Fig. 9(A), after the false twisting system 1 starts operating, assume that the yarn Y has run out from the two yarn supply packages P supported by the peg specifying information "I·2·L" and "II·1·R." The worker visually confirms that the yarn Y has run out from the two yarn supply packages P supported by the peg specifying information "I·2·L" and "II·1·R," and removes the yarn supply package P (i.e., the yarn supply bobbin B) from which the yarn Y has run out from the pegs 25 specified by "I·2·L" and "II·1·R." Out Next, the worker removes the caps 11 from the removed yarn supply bobbins B. Next, the worker attaches caps 11 to the yarn supply packages P stored in the yarn supply package storage device 6 that do not have caps 11 attached (first step).

[0069] As described above, the yarn supply package storage device 6 temporarily stores the yarn supply package P after it is transferred from the transport rack 3 until it is taken out by the yarn supply package supply device 7. The worker visually checks the yarn supply package P to see if it has a cap 11 attached, and attaches the cap 11 to the yarn supply bobbin B of the yarn supply package P to which the cap 11 is not attached, as shown in FIG. 9(B). Put on In this case, after the false twisting system 1 was started, the cap 11 of the yarn supply package P from which the yarn Y had run out was removed. Put on Since an example has been shown, there are no yarn supply packages P with caps 11 attached in the yarn supply package storage device 6, but as time passes, there may be yarn supply packages P with caps 11 attached waiting to be removed by the yarn supply package supply device 7.

[0070] 10(A), the yarn supply package supply device 7 removes the yarn supply package P to which the cap 11 was attached in the first step from the yarn supply package storage device 6 (second step). The presence or absence of the cap 11 on the yarn supply package P is determined based on whether the recognition mechanism 79 can recognize the identification unit 13 when the package holding unit 71 of the yarn supply package supply device 7 inserts the yarn supply package holding member 711 into the yarn supply bobbin B of the yarn supply package P in order to remove the yarn supply package P held in the package holding unit 61 of the yarn supply package storage device 6. In the step of checking the presence or absence of the cap 11, the recognition mechanism 79 does not need to recognize the peg-specific information stored in the identification unit 13, and may simply check the presence or absence of the identification unit 13.

[0071] The control unit 78A controls the yarn supply package supply device 7 so that when the recognition mechanism 79 recognizes the identifying unit 13, the control unit 78A takes out the yarn supply package P, and when the recognition mechanism 79 does not recognize the identifying unit 13, the control unit 78A does not take out the yarn supply package P, but takes out a yarn supply package P held by another package holding unit 61. In the second step, the yarn supply package supply device 7 takes out, from the yarn supply package storage device 6, a yarn supply package P to which an identifying unit 13 is attached, in which the peg identification information "I·2·L" or "II·1·R" is stored. Out vinegar.

[0072] Next, the recognition mechanism 79 recognizes the peg identification information held in the cap 11 attached to the yarn supply package P taken out by the yarn supply package supply device 7 in the second step (third step). More specifically, an RFID reader serving as the recognition mechanism 79 reads out the peg identification information recorded on the RF tag. Next, as shown in FIG. 10(B), the yarn supply package supply device 7 moves to the arrangement position of the peg 25 identified based on the peg identification information recognized by the recognition mechanism 79 in the third step, and attaches the yarn supply package P to the identified peg 25 (fourth step). More specifically, the control unit 78A drives the third drive unit 78 to move in the Y direction to the position of the peg 25 identified based on the peg identification information, and then drives the first drive unit 76 and the second drive unit 77 to move in the Z direction and the X direction to the position of the peg 25.

[0073] Next, the worker removes the yarn supply bobbin B of the yarn supply package P from the peg 25, which has run out of yarn Y, from the yarn supply package P attached to the peg 25 by the yarn supply package supply device 7 in the fourth step. Out Next, in the fifth step, the worker removes the Out The cap 11 is removed from the yarn supplying bobbin B that has been attached (sixth step). Next, the worker uses the cap 11 removed in the sixth step as the cap 11 to be attached in the first step (seventh step). That is, the worker attaches the cap 11 removed in the sixth step to a yarn supply package P that does not have a cap 11 attached, among the yarn supply packages P stored in the yarn supply package storage device 6.

[0074] Next, a method for replacing a yarn supply package to the creel stand 20 using the yarn supply package supply system 10 of the above embodiment and the effects of the yarn supply package supply system 10 will be described.

[0075] In the above embodiment, by repeating the first to seventh steps, when the yarn Y of the yarn supply package P supported on the peg 25 of the creel stand 20 runs out, the yarn supply package P from which the yarn Y has run out of the peg 25 can be reliably replaced with a new yarn supply package P. Furthermore, the yarn supply package P can be transported to the creel stand 20 and placed on the peg 25. attachment This work is performed by the yarn supply package supply device 7, which reduces the workload of the worker. In other words, the workload of the worker can be reduced, and when the yarn Y of the yarn supply package P supported by the peg 25 of the creel stand 20 runs out, the yarn supply package P from which the yarn Y has run out can be reliably replaced with a new yarn supply package P for the peg 25.

[0076] In the above embodiment, even if there is a distance between the yarn supply package storage device 6 and the creel stand 20, the yarn supply package supply device 7 carries the yarn supply package P from the yarn supply package storage device 6 to the creel stand 20 and attaches it to the peg 25 of the creel stand 20, which further reduces the workload of the worker.

[0077] In the above embodiment, the recognition mechanism 79 is provided in the main body 73 of the yarn supply package supply device 7, and the control unit 78A controls the first drive unit 76 and the second drive unit 77 to take out only the yarn supply package P that holds the peg identification information recognized by the recognition mechanism 79. With this configuration, the yarn supply package supply device 7 can receive only the yarn supply package P with the cap 11 attached from the yarn supply package storage device 6, so that the taken-out yarn supply package P can be reliably attached to the peg 25 of the creel stand 20.

[0078] In the above embodiment, the yarn supplying bobbin B is provided with a detachable cap 11 for covering one opening of the cylindrically formed yarn supplying bobbin B. Fitted The peg specifying information is held in the cap 11. This makes it possible to easily provide the peg specifying information to the supply yarn package P.

[0079] In the above embodiment, the cap 11 is provided with an IC tag storing peg-specific information, and an IC tag reader capable of reading the peg-specific information stored in the IC tag is applied to the recognition mechanism 79. This allows the peg-specific information to be easily stored in the cap 11, and the peg-specific information stored in the cap 11 can be easily recognized by the recognition mechanism 79.

[0080] Although one embodiment has been described above, the present invention is not limited to the above embodiment, and various modifications are possible without departing from the spirit of the invention.

[0081] In the above embodiment, the cap 11 is determined based on whether or not the recognition mechanism 79 recognizes the peg-specific information. Fitted Although the present invention is not limited to this example, the presence or absence of the cap 11 may be determined based on the detection of a sensor or an image from a camera separately provided in the yarn supply package storage device 6 or the yarn supply package supply device 7. The yarn supply package supply device 7 may also be provided with an input unit for inputting information about the package holding unit 61 to be removed, and may remove a yarn supply package P from among the plurality of package holding units 61 based on the information input to the input unit by an operator or the like.

[0082] Furthermore, in the above embodiment and modified example, the recognition mechanism 79 is provided in the yarn supply package supply device 7, but it may be provided in the yarn supply package storage device 6. For example, as shown in FIG. 4 , a recognition mechanism 69 may be provided corresponding to each yarn supply package holding member 611, and may be configured to recognize only the yarn supply package P attached to the corresponding yarn supply package holding member 611. Even with this configuration, the yarn supply package supply device 7 can only remove a yarn supply package P with a cap 11 attached from the yarn supply package storage device 6. This allows the removed yarn supply package P to be reliably attached to the peg 25 of the creel stand 20.

[0083] In the above embodiment and modified examples, an RF tag is used as an example of the identification unit 13, and an RFID reader capable of reading information stored in an RF tag via wireless communication is used as an example of the recognition mechanism 79 (69), but this is not limiting. For example, the identification unit 13 may be displayed with a one-dimensional code, a two-dimensional code, a symbol, a pattern, a color, or a combination thereof, and the recognition mechanism 79 (69) may be a camera or the like. Even in this case, the recognition mechanism 79 (69) can identify the corresponding peg 25 based on the display of the identification unit 13.

[0084] In the above embodiment and modified examples, an example has been described in which the cap 11 having the identification unit 13 attached thereto is attached to the yarn supply package P. However, the identification unit 13 may be attached directly to the yarn supply bobbin B of the yarn supply package P. In addition to the identification unit 13 as described above, peg-identifying information in a display method that can be recognized by a person may be provided to the cap 11 or the yarn supply package P.

[0085] In the above embodiment and modified example, the yarn supply package supply device 7 only attaches the yarn supply package P and does not remove the empty yarn supply package P (i.e., the yarn supply bobbin B). Out For example, the yarn supply package supply device 7 may have a supply function of transporting the yarn supply package P from the yarn supply package storage device 6 to a predetermined peg 25 of the creel stand 20 and attaching the yarn supply package P to the peg 25, and a function of removing an empty yarn supply package P (i.e., yarn supply bobbin B) from the peg 25 of the creel stand 20. Out In addition, it may also have a collection function of transporting the yarn to the supply package storage device 6, for example.

[0086] In the above embodiment and modified examples, the yarn supply package supply device 7 has been described as being movable horizontally along the extending direction (Y direction) of the creel stand 20. However, for example, the package holding part 71 may be configured to be movable only in the vertical direction, or the package holding part 71 may be attached to the tip of the arm part, and the package holding part 71 may be configured to be movable in the X direction, the Y direction, and the Z direction even if the main body part 73 and the base part 74 of the yarn supply package supply device 7 do not move horizontally. [Explanation of symbols]

[0087] 1...false twist texturing system, 2...false twist texturing machine, 6...yarn supply package storage device (storage section), 7...yarn supply package supply device, 10...yarn supply package supply system, 11...cap (bobbin mounting member), 13...identification section, 20...creel stand, 25...peg (support section), 61...package holding section (storage support section), 69...recognition mechanism, 71...package holding section, 76...first drive section, 77...second drive section, 78...third drive section, 79...recognition mechanism, 80A...control section (control device), B...yarn supply bobbin (bobbin), P...yarn supply package.

Claims

1. a storage section that stores a plurality of yarn supply packages in which a yarn made of synthetic fiber is wound around a bobbin; a creel stand having a plurality of support portions that support the yarn of the yarn supply package so that the yarn can be unwound; a yarn supply package supply device that removes the yarn supply package from the storage section and attaches the yarn supply package to the support section of the creel stand; a bobbin mounting member provided corresponding to each of the plurality of support portions and detachable from the bobbin, the bobbin mounting member holding support portion identification information that can identify the corresponding support portion; a recognition mechanism for recognizing the support portion identification information held on the yarn supply package, a first step of attaching the bobbin attachment member to a yarn supply package stored in the storage section to which the bobbin attachment member has not been attached; a second step in which the yarn supply package supply device takes out the yarn supply package to which the bobbin mounting member has been attached in the first step from the storage section; a third step in which the recognition mechanism recognizes the support portion identification information held on the bobbin mounting member mounted on the yarn supply package taken out by the yarn supply package supply device in the second step; a fourth step in which the yarn supply package supply device attaches the yarn supply package to the support part identified based on the support part identification information recognized by the recognition mechanism in the third step; a fifth step of removing, from the support portion, the bobbin of the yarn supply package from which the yarn has run out, among the yarn supply packages attached to the support portion by the yarn supply package supply device in the fourth step; a sixth step of removing the bobbin mounting member from the bobbin removed from the support portion in the fifth step; a seventh step of using the bobbin mounting member removed in the sixth step as the bobbin mounting member to be mounted in the first step.

2. 2. The method for replacing a yarn supply package to a creel stand according to claim 1, wherein in the fourth step, the yarn supply package supply device moves to a position where the support part identified based on the support part identification information recognized by the recognition mechanism in the third step is located.

Images