TW202325930A - Yarn package knot releasing device, yarn joining processing device, and yarn feeding device - Google Patents

Abstract

A knot releasing device 70 releases a knot KN including a slip knot of a yarn feeding package P1. The knot releasing device 70 includes a suction gun 71, a receiving portion 72 which contacts the suction gun 71 to sandwich a first yarn end Y1 captured by the suction gun 71 by suction, an air cylinder 73 which guides the receiving portion 72 from a first position PA to a second position PB in a direction moving away from a yarn feeding package P1, and a threading robot 74 which guides the suction gun 71 to the second position while guiding the receiving portion 72 by the air cylinder 73 in a state in which the suction gun 71 contact the receiving portion 72 at the first position.

Description

Knot releasing device, yarn splicing processing device and yarn feeding device of yarn package body

One aspect of the present invention relates to a knot releasing device, a yarn splicing processing device, and a yarn feeding device of a yarn package.

In the yarn package used in textile machinery, for example, in order not to untie the wound yarn portion of the yarn layer formed by winding the yarn on the bobbin, sometimes the wound yarn portion is knotted. It is fixed on the outer peripheral surface of the yarn layer to knot and fix the yarn. At this time, if the yarn is knotted and fixed by a knot including a sliding knot (also referred to as "unknotting"), the knot can be easily untied by pulling the yarn part of the yarn that has been wound. In this case, it is possible to easily untangle yarn knots by a robot instead of a worker. Then, in order for the robot to untangle the yarn knot, the robot needs to attract and catch the yarn catcher at the end of the wound yarn portion. When the yarn catching section is configured to include only the mechanism for sucking and catching the end of the wound yarn portion, it includes not only the mechanism for sucking and catching the end of the wound yarn portion but also the mechanism for clamping the wound yarn portion The condition of the mechanism at the end.

For example, the yarn processing device described in Japanese Patent Laid-Open No. 2021-91987 includes a yarn catching unit (second catching mechanism) capable of sucking and catching the yarn by negative pressure generated when a compressed fluid is supplied ( yarn). When the compressed fluid is not supplied, the yarn catching part is in a catching state capable of clamping and catching the yarn, and when the compressed fluid is supplied, the self-catching state becomes a released state in which the yarn is not clamped. This sliver processing device corresponds to a configuration including not only a mechanism for sucking and catching the end of the wound yarn portion but also a mechanism for clamping the end of the wound yarn portion.

However, for the yarn package in which the end of the wound yarn portion is knotted and fixed on the outer peripheral surface of the yarn layer of the yarn package by a knot including a slip knot, the end of the wound wound yarn portion is caught. In order to untie the knot, it is necessary to pull strongly the end of the wound yarn portion away from the yarn package. In the prior art described above, in the case of a mechanism that only includes a mechanism that sucks and catches the end of the yarn portion that has been wound up, in order to untie the knot, it is necessary to suck it by the negative pressure generated when a large amount of compressed fluid is supplied. The end of the wound yarn portion is wound so as to strongly pull the end of the wound yarn portion away from the yarn package.

In addition, in the above-mentioned prior art, in the case of including not only the mechanism for attracting and catching the end of the wound yarn portion but also the mechanism for clamping the end of the wound yarn portion, it is possible to And the yarn catcher for catching the yarn strongly pulls the end of the wound yarn portion away from the yarn package. However, in this case, the yarn clamping mechanism (clamping mechanism, clamping mechanism, etc.) for clamping the yarn is provided in the yarn catching part, so the size of the yarn catching part becomes large, and the yarn catching part may not pass through. The narrow space is unrealistic. In addition, in this case, when the end of the wound yarn portion is strongly pulled away from the yarn package, the yarn may be entangled in the yarn clamping mechanism, which is also unrealistic. .

Therefore, an object of one aspect of the present invention is to provide a yarn package body knot releasing device, a yarn splicing processing device, and a yarn feeding device that do not need to supply a negative pressure for strongly pulling the yarn to the yarn catching part. Knots including slip knots of the yarn package can be released by using a large amount of compressed fluid without providing a yarn clamping mechanism for clamping the yarn in the yarn catching portion.

The yarn package knot releasing device according to one aspect of the present invention fixes the wound yarn portion of the yarn layer formed by winding the yarn on the bobbin to the yarn layer by knotting a knot including a slip knot. The yarn package on the outer peripheral surface untangles the knot, and the knot-releasing device of the yarn package includes: a yarn catching part for catching the end of the yarn part after the winding is completed by suction; a receiving part and The yarn catching part is in contact with the yarn catching part so as to clamp the end of the wound yarn part captured by the yarn catching part; the guide part guides the receiving part away from the yarn package from the first position to the second position; and the yarn catching part moving part makes the yarn catching part and the receiving part contact at the first position, and in the state where the yarn catching part is in contact with the receiving part, guides the receiving part by the guide part while Move the yarn catching part to the second position away from the yarn package.

In this yarn package body knot releasing device, the yarn can be sandwiched between them by bringing the yarn catching part that caught the end of the wound yarn part into contact with the receiving part. Then, in this state, the receiving portion is guided by the guide portion, whereby the end portion of the wound yarn portion can be strongly pulled away from the yarn package body, thereby untying knots including slip knots. Therefore, according to the yarn package knot releasing device according to one aspect of the present invention, it is not necessary to supply a large amount of compressed fluid to generate a negative pressure for strongly pulling the yarn to the yarn catching part, and it is not necessary to supply the yarn catching part By providing the yarn clamping mechanism for clamping the yarn, knots including slip knots of the yarn package can be released.

In the yarn package knot releasing device according to one aspect of the present invention, the distance from the first position to the knot may be equal to or less than the length from the knot to the end of the yarn portion after winding. location within range. In this case, the yarn catching part and the receiving part can be reliably brought into contact with the yarn catching part in the state where the winding-finished yarn part was caught. In addition, the second position may be a position in the range between one end and the other end of the yarn package in the width direction of the yarn package. In this case, when the end of the wound yarn portion is strongly pulled away from the yarn package by the guide portion guiding the receiving portion, it is possible to suppress the winding of the wound yarn on the bobbin. The part moves along the width direction of the yarn package until it is detached from the bobbin.

In the yarn package knot releasing device according to one aspect of the present invention, the guide portion may have a biasing holding unit that biases the receiving portion from the second position toward the first position and moves the receiving portion toward the first position. The receiving part remains at the first position. In this case, since the guide portion is constituted by the urging holding means, the yarn catching portion and the receiving portion are in close contact, so that the yarn can be securely clamped.

In the yarn package knot releasing device according to one aspect of the present invention, the receiving portion may have an elastic member formed with a concave portion, and the inner surface of the concave portion may have a tapered shape inclined inward as it goes toward the bottom. noodle. As a result, when the yarn catching portion that has caught the end of the wound yarn portion is brought into contact with the receiving portion, the yarn can be securely sandwiched between them.

In the yarn package knot releasing device according to an aspect of the present invention, the yarn catching part may be provided at the front end of the yarn catching part moving part. Accordingly, the yarn catching part moving part can easily operate the yarn catching part.

In the yarn package knot releasing device according to one aspect of the present invention, the knot may be located at an angle relative to the center of the yarn package in a direction perpendicular to the axial direction of the yarn package. The receiving part is located on the same side as the knot with respect to the center of the yarn package. In this case, the yarn end of the yarn can be effectively guided away from the yarn package.

In the yarn package knot releasing device according to one aspect of the present invention, the yarn package may include a first yarn package and a second yarn package, and the receiving part may include: a first receiving part , which is in contact with the yarn catching part, so as to clamp the end of the wound yarn part of the first yarn package between the yarn catching part; and the second receiving part, which is in contact with the yarn catching part, so as to The end portion of the wound yarn portion of the second yarn package is sandwiched between the catching parts, and the guide part includes: a first guide part that guides the first receiving part away from the yarn package; The guide part guides the second receiving part away from the yarn package body, and the yarn catching part moving part makes the yarn catching part contact the first receiving part at the first position corresponding to the first receiving part, and In the state where the yarn catching part is in contact with the first receiving part, the first receiving part is guided by the first guide part, and the yarn catching part is moved away from the yarn package to the first receiving part corresponding to the first receiving part. 2 positions, make the yarn catching part and the second receiving part contact at the first position corresponding to the second receiving part, and in the state where the yarn catching part is in contact with the second receiving part, guide it by the second guide part The second receiving part moves the yarn catching part away from the yarn package to a second position corresponding to the second receiving part. According to such a configuration, it is possible to cope with the release of the knots corresponding to the two yarn packages respectively.

A yarn splicing processing device according to one aspect of the present invention includes: the above-mentioned yarn package device for releasing knots; The yarn end on the inner layer side of the body is connected, or the yarn end on the inner layer side of the first yarn package body is connected to the yarn end on the outer layer side of the second yarn package body.

Since the yarn splicing processing device includes the above-mentioned knot release device, it is not necessary to supply a large amount of compressed fluid to the yarn catching part to generate a negative pressure for strongly pulling the yarn, and it is not necessary to install a device for the yarn catching part. The yarn clamping mechanism for clamping the yarn can release the knots of the yarn package including slip knots.

A yarn feeding device according to an aspect of the present invention includes: a yarn feeding frame having a first mounting portion on which a first yarn package is mounted, and a second mounting portion on which a second yarn package is mounted; a knot releasing device; and a yarn splicing section for connecting the yarn end on the outer layer side of the first yarn package with the yarn end on the inner layer side of the second yarn package, or connecting the yarn end of the first yarn package The yarn end on the inner layer side is connected to the yarn end on the outer layer side of the second yarn package.

The yarn feeding device is equipped with the above-mentioned knot releasing device, so it is not necessary to supply a large amount of compressed fluid to the yarn catching part to generate a negative pressure for strongly pulling the yarn, and it is not necessary to provide a clamping device in the yarn catching part. The yarn clamping mechanism for holding the yarn can release the knots of the yarn package including slip knots.

According to one aspect of the present invention, it is possible to provide a yarn package knot releasing device, a yarn splicing processing device, and a yarn feeding device that do not need to supply a large amount of negative pressure for strongly pulling the yarn to the yarn catching part. Knots including slip knots of the yarn package can be released by compressing the fluid without providing a yarn clamping mechanism for clamping the yarn in the yarn catching portion.

Embodiments will be described in detail below with reference to the drawings. In the description of the drawings, the same reference numerals are assigned to the same or corresponding elements, and overlapping descriptions are omitted.

As shown in FIG. 1 , a yarn supplying device 100 according to an embodiment includes a creel (supplying creel) 20 and a yarn splicing processing device 9A. The creel 20 is installed in the false twist processing machine 1 . A yarn splicing processing device 9A according to one embodiment is mounted on the package changing device 9 . The yarn joining processing device 9A is configured to include a yarn joining device (yarn joining unit) 60, a control unit 94, and a knot releasing device (a yarn package knot releasing device) 70 (see FIG. 6 ). In the following description, the "Z direction" shown in the figure is the vertical direction (up-down direction), the "X direction" is the horizontal direction, and the "Y direction" is the horizontal direction perpendicular to the "X direction".

A false twist processing machine 1 shown in FIG. 1 processes yarn Y supplied from a plurality of yarn supply packages (yarn packages) P1 to manufacture a wound package P2. The yarn Y is, for example, a synthetic yarn made of thermoplastic synthetic fibers such as polyester and polyamide. The yarn supply package P1 is formed by winding a partially drawn yarn (POY: Partially Oriented Yarn) around the yarn supply bobbin B1. The winding package P2 is formed by winding a drawn textured yarn (DTY: Draw Textured Yarn) around a winding bobbin B2. That is, the false twist processing machine 1 processes the yarn Y that is a half-drawn yarn to produce a drawn-processed yarn.

As shown in FIG. 2, the adapter 8 is attached to the yarn supply package P1. The adapter 8 is attached to the end of the yarn supplying bobbin B1 of the yarn supplying package P1 so as to be able to rotate synchronously. The adapter 8 is formed in a cylindrical shape. A holding hole 81 is formed in the splicer 8, and the holding hole 81 allows the yarn end of the yarn Y on the outer layer side (yarn discharge side) of the yarn supplying package P1 (hereinafter, the yarn end of the yarn Y on the outer layer side) referred to as "first yarn end Y1") enters and holds. The first yarn end Y1 is at the end of the wound yarn portion of the yarn layer YL formed by winding the yarn Y on the yarn supplying bobbin B1.

The holding hole 81 is formed of a narrow tube that is provided inside the adapter 8 and extends in a curved manner. The holding hole portion 81 opens in the axial direction of the adapter 8 . A suction port that abuts on a suction nozzle 712 described later is formed in the opening portion of the holding hole portion 81 . The suction port is a concave part that is conically depressed as it approaches its center. The adapter 8 is attached to the yarn supply package P1 by, for example, an operator.

The finished yarn portion of the yarn layer YL in the yarn supply package P1 is knotted and fixed on the outer peripheral surface of the yarn layer YL by a knot KN including a slip knot. In other words, the wound portion of the yarn layer YL in the yarn supply package P1 is knotted by the knot KN so as not to unravel. Slip knots are also known as untie knots. This type of knot KN fixes the wound-up yarn portion of the yarn layer YL on the outer peripheral surface of the yarn layer YL, and releases the fixation by pulling the first yarn end Y1 to untie it. The knot KN is located on the lower side in the vertical direction relative to the center of the yarn supply package P1 (the side in the direction perpendicular to the axial direction of the yarn supply package P1) (see FIG. 16 and FIG. 17 ).

As shown in FIG. 1 , a false twist processing machine 1 includes a yarn feeder 2 , a processing unit 3 , and a winding unit 4 . The respective configurations of the yarn feeding section 2, the processing section 3, and the winding section 4 are aligned with the running surface (the paper surface of Fig. 1 ) of the yarn Y that is configured from the yarn supplying section 2 through the processing section 3 to the winding section 4. A plurality of them are arranged in the intersecting Y direction (body length direction).

The yarn supply unit 2 supplies the yarn Y to the processing unit 3 . The yarn supply unit 2 includes a creel 20 holding a plurality of yarn supply packages P1. As shown in FIGS. 1 and 3 , the creel 20 includes a creel base portion 21 , a first support 22 , a second support 23 , a partition plate 24 , pegs 25 , and clips 29 . The creel base part 21 is installed on the floor etc., and supports the 1st support|pillar 22 and the 2nd support|pillar 23. The first pillar 22 and the second pillar 23 are erected on the creel base portion 21 .

The first support 22 extends along the Z direction. The first pillars 22 are arranged at equal intervals in the Y direction. The first support 22 is disposed on one side F1 of the creel 20 in the X direction. The side F1 in the X direction is the side where the processing section 3 described in detail later is arranged, and is the side where the yarn Y is sent out to the processing section 3 for performing false twist processing.

The second strut 23 extends along the Z direction. The second support columns 23 are arranged in pairs in the Y direction, and the second support columns 23 and 23 of multiple sets are arranged in the Y direction. The second support 23 is arranged on the other side F2 of the creel 20 in the X direction. The other side F2 in the X direction is the side where the package changing device 9 described in detail in the latter section travels, and is the side where the operator who performs the yarn splicing operation works. The group of the 1st support|pillar 22 which consists of several 1st support|pillars 22, and the group of the 2nd support|pillar 23 which consists of several 2nd support|pillars 23 are arrange|positioned so that they may oppose to X direction.

The partition plate 24 is disposed across the first pillar 22 and the second pillar 23 . The partition plates 24 are plate-shaped members and are arranged at predetermined intervals in the Z direction. The partition plate 24 prevents the yarn supply package P1 from falling from the peg 25 .

The peg 25 supports the yarn supply package P1. The peg 25 is disposed on the second pillar 23 . A plurality of pegs 25 (for example, four) are arranged at predetermined intervals in the Z direction of the second support 23 . The peg 25 is arranged between the two partition plates 24 in the Z direction. In addition, the pegs 25 are arranged in pairs corresponding to the second pillars 23 , 23 arranged in pairs, and a plurality of sets (pairs) of the pegs 25 , 25 are arranged in the Y direction.

In the pegs 25 of this configuration, the yarn Y of the yarn supply package P1 supported by one of the pegs 25 of the pair can be separated from the yarn supply package P1 supported by the other peg 25 of the pair. Body P1 is connected by yarn Y. Specifically, the first yarn end Y1 of the yarn supplying package P1 supported by one peg 25 of the pair can be connected to the yarn supplying package P1 supported by the other peg 25 of the pair. The yarn end of the yarn Y on the inner layer side (yarn tail side) (hereinafter, the yarn end of the yarn Y on the inner layer side is also referred to as the "second yarn end") is connected, or supported on one of the pairs The second yarn end of the yarn supplying package P1 of the peg 25 is connected to the first yarn end Y1 of the yarn supplying package P1 of the other peg 25 of the pair. Thus, one yarn Y is supplied to the processing section 3 from the two yarn supply packages P1, P1 respectively supported by the pair of pegs 25, 25 (the yarn Y is continuously supplied).

The clip 29 is arranged between the above-mentioned pair of pegs 25, 25 in the Y direction. In this embodiment, it is arranged at the central portion of the above-mentioned pair of pegs 25,25. The yarn Y is clamped and locked by the clip 29 . Specifically, the clip 29 holds and locks the yarn connecting the first yarn end Y1 and the second yarn end of the two yarn supply packages P1, P1 respectively supported by the pair of pegs 25, 25.

The processing section 3 applies false twist processing to the yarn Y supplied from the yarn supply section 2 . The processing section 3 includes an anti-twist yarn guide 31, a first heating device 32, a cooling device 33, a false twist device 34, a second heating device 35, and a yarn supply roller 36 (yarn supply rollers 361 to 363). The anti-twist yarn guide 31, the first heating device 32, the cooling device 33, the false twist device 34, the second heating device 35, and the yarn feeding rollers 36 (yarn feeding rollers 361 to 363) are respectively corresponding to the respective yarn feeding rollers supplied from the yarn feeding part 2. The yarns Y are independently arranged and arranged in a row in the Y direction.

The anti-twist guide 31 prevents the twist imparted to the yarn Y by a false twist device 34 described later to propagate upstream of the anti-twist guide 31 in the yarn traveling direction. The first heating device 32 heats the yarn Y sent from the yarn supply unit 2 via the yarn supply roller 361 . The cooling device 33 cools the yarn Y heated by the first heating device 32 . The false twisting device 34 twists the yarn Y. The second heating device 35 heats the yarn Y sent from the false twisting device 34 via the yarn supply roller 362 .

Yarn feeding roller 361 is arranged between creel 20 and anti-twist yarn guide 31, yarn feeding roller 362 is arranged between false twist device 34 and second heating device 35, and yarn feeding roller 362 is arranged between second heating device 35 and winding device 41. Yarn feeding rollers 363 are arranged between them. Each of the yarn supply rollers 36 (the yarn supply rollers 361 to 363) includes a driving roller and a driven roller. The yarn feeding rollers 36 are also arranged in a row in the Y direction.

The delivery speed of the yarn Y delivered by the yarn supply roller 362 is faster than that of the yarn Y delivery by the yarn supply roller 361, and the yarn Y is stretched between the yarn supply roller 361 and the yarn supply roller 362. The delivery speed of the yarn Y delivered by the yarn supply roller 363 is slower than that of the yarn Y delivery by the yarn supply roller 362, and the yarn Y is relaxed between the yarn supply roller 362 and the yarn supply roller 363.

In the processing section 3 configured as above, the yarn Y stretched between the yarn supply roller 361 and the yarn supply roller 362 is twisted by the false twisting device 34 . The twist formed by the false twist device 34 propagates to the anti-twist yarn guide 31, but does not propagate to a position upstream of the anti-twist yarn guide 31 in the yarn traveling direction. The stretched and twisted yarn Y is cooled by the cooling device 33 after being heat-set by the first heating device 32 . Downstream of the false twisting device 34, the yarn Y is untwisted, but each long yarn is maintained in a false twisted state by the heat setting described above. The yarn Y is heat-set by the second heating device 35 while being relaxed between the yarn supply roller 362 and the yarn supply roller 363 . Finally, the yarn Y sent from the yarn supply roller 363 is wound by the winding device 41 of the winding section 4 to form a winding package P2.

The winding unit 4 includes a winding device 41, a package stocker 42, a doffing device (not shown), and the like. The winding device 41 winds the yarn Y subjected to false twist processing by the processing section 3 to form a winding package P2. The package stocker 42 stores the wound package P2 formed by the winding device 41 . The doffing device takes out the wound package P2 formed by the winding device 41, transfers the wound package P2 to the package stocker 42, and winds the empty bobbin B2 on the winding device 41. installation etc.

The package changing device 9 retrieves the yarn supplying bobbin B1 from the peg 25 and attaches the yarn supplying package P1 to the peg 25 . As shown in FIG. 4 , the package exchanging device 9 travels along the rail 98 . The rail 98 is laid on the ground and extends along the Y direction. That is, the package exchanging device 9 is provided so as to be able to travel along the Y direction. The package exchanging device 9 includes a traveling unit 90, an elevating unit 91, a holding unit 92, an exchanging unit 93, a yarn splicing device 60, and a control unit 94 (see FIG. 6 ) for controlling the operations of these components.

The traveling unit 90 is provided with wheels traveling on a rail 98 , a driving mechanism, and the like. The traveling unit 90 supports an elevating unit 91 , a holding unit 92 , and a replacement unit 93 . The elevating unit 91 is ascended and descended by a worker. The lift unit 91 is used for maintenance and the like. The elevating unit 91 includes a workbench 911 on which an operator rides, a guide part 912 that supports the workbench 911 so as to be movable in the Z direction, and a drive mechanism (not shown) that drives the workbench.

The holding unit 92 holds a plurality (for example, four) of yarn supply packages P1. The holding unit 92 receives the supply of the yarn package P1 from a package replenishing device (not shown), temporarily stores the yarn package P1, and supplies the yarn package P1 to the replacement unit 93 . The holding unit 92 is provided to be rotatable within a range of approximately 90°. More specifically, the holding unit 92 is provided so as to be capable of receiving a supply of the yarn package P1 from the package replenishing device and a supply position for supplying the yarn package P1 to the replacement unit 93 (shown in FIG. 4 ). position) to rotate between.

The exchange unit 93 performs exchange of the yarn supply bobbin B1 and the yarn supply package P1 in the peg 25 . Specifically, the replacement unit 93 collects the yarn supply bobbin B1 (see FIG. 1 ) from the peg 25 and attaches the yarn supply package P1 to the peg 25 . The replacement unit 93 is provided adjacent to the holding unit 92 . As shown in FIG. 5 , the replacement unit 93 includes a base 931 , a rotation device 932 , a recovery device 933 , a supply device 934 , and a rotary table 936 . In addition, in FIG. 4 , descriptions of the rotating device 932 , the collecting device 933 , the supply device 934 , the rotary table 936 , the yarn joining device 60 and the knot releasing device 70 are omitted.

The base 931 supports the rotation device 932 , the recovery device 933 , the supply device 934 and the rotary table 936 supporting the yarn splicing device 60 . The base 931 is provided so as to be able to move up and down freely along the Z direction. The rotating device 932 is fixed on the base 931 . The rotating device 932 rotates the peg 25 of the creel 20 . The rotating device 932 has a rotating driving member 932A and a rotating arm 932B.

Rotary drive 932A is a Malta drive constituting the Malta mechanism. The rotation driver 932A is rotated by the rotation drive of a motor (not shown). The rotation arm 932B supports the rotation driver 932A. The swing arm 932B is provided so as to be able to swing in the horizontal direction. The rotating arm 932B is driven by, for example, a motor or an air cylinder (not shown). The rotating device 932 is provided so as to correspond to one of the pegs 25 and the other of the pegs 25 in the pair of the creel 20 .

The rotation device 932 rotates the peg 25 to change the orientation of the peg 25 when the yarn package P1 is attached to the peg 25 . More specifically, the rotating device 93 swings the rotating arm 932B to engage the rotating driving member 932A with the peg 25 . The rotating device 932 rotates the rotating driving member 932A in one direction when the rotating driving member 932A engages with the peg 25 . As a result, the peg 25 rotates.

The recovery device 933 is provided on a turntable 936 rotatably supported by the base 931 . The recovery device 933 recovers the yarn supply bobbin B1 from the peg 25 . The recovery device 933 has a yarn supplying bobbin support portion 933A for supporting the yarn supplying bobbin B1. The recovering device 933 supports the yarn supply bobbin B1 by entering the yarn supply bobbin support portion 933A in a state where the yarn supply bobbin B1 is not supported relative to the peg 25, and by supporting the yarn supply bobbin with respect to the peg 25 In the state of the bobbin B1, the yarn supplying bobbin supporting part 933A is retracted, and the yarn supplying bobbin B1 is recovered from the peg 25 .

The supply device 934 is provided on a turntable 936 rotatably supported by the base 931 . The supply device 934 supplies the yarn package P1 to the peg 25 . The supply device 934 has a yarn supply package supply unit 934A that supports the yarn supply package P1. The supply device 934 attaches the yarn supply package P1 to the peg 25 by entering the yarn supply package supply part 934A in a state where the yarn supply package P1 is supported relative to the peg 25. With the peg 25 supporting the yarn supply package P1 , the yarn supply package supply unit 934A is moved backward, and the yarn supply package P1 is supplied to the peg 25 .

In addition to recovering the yarn-supply bobbin B1 from the peg 25 and installing the yarn-supply package P1 to the peg 25, the package changing device 9 also untangles the knot KN of the yarn-supply package P1 (knot release processing), and the yarn ends of a pair of yarn supply packages P1, P1 mounted on a pair of pegs 25, 25 of the creel 20 are connected to each other (yarn splicing processing). The knot removal process and the yarn splicing process are executed by the yarn splicing processing device 9A. The yarn joining processing device 9A is configured to include a yarn joining device 60 , a knot releasing device 70 , and a control unit 94 .

The yarn joining device 60 is installed on a turntable 936 rotatably supported by a base 931 . The yarn joining device 60 performs yarn joining of the first yarn end Y1 of the yarn supplying package P1 supported by one peg 25 and the second yarn end of the yarn supplying package P1 supported by the other peg 25, Alternatively, the yarn splicing is performed between the second yarn end of the yarn supplying package P1 supported by one peg 25 and the first yarn end Y1 of the yarn supplying package P1 supported by the other peg 25 . Hereinafter, the yarn supplying package P1 supported (mounted) on one peg 25 will also be referred to as the first yarn supplying package (first yarn package) P11, and will also be supported (mounted) on the other peg 25. The yarn supply package P1 of the peg 25 is called a second yarn supply package (second yarn package) P12.

In addition, the peg 25 to which the first yarn supplying package P11 is mounted constitutes a first mounting portion, and the peg 25 to which the second yarn supplying package P12 is mounted constitutes a second mounting portion. The yarn joining device 60 is configured to connect the first yarn end Y1 of the first yarn supplying package P11 to the second yarn end Y1 of the second yarn supplying package P12 or connect the second yarn end Y1 of the first yarn supplying package P11 to the second yarn end Y1 of the first yarn supplying package P11. A yarn splicing portion where the yarn end is connected to the first yarn end Y1 of the second yarn supplying package P12.

The rotary table 936 rotates so that the yarn supplying bobbin support 933A is positioned in front of the peg 25 as an object when the yarn supplying bobbin B1 is recovered. In addition, when the rotary table 936 supplies the yarn package P1, it rotates so that the yarn supply package supply part 934A is located in front of the peg 25 which is an object. In addition, the rotary table 936 rotates so as to be positioned in front of the peg 25 as an object when the yarn Y is spliced by the yarn splicing device 60 .

As shown in FIGS. 7 to 10 , the knot removing device 70 includes a suction gun (yarn catching part) 71, a receiving part 72, an air cylinder (guiding part) 73, and a yarn hanging robot (yarn catching part moving part) 74. The suction gun 71 catches by sucking the first yarn end Y1 which is the end of the wound yarn portion (hereinafter also simply referred to as "suction and catch"). The suction gun 71 is arranged at the front end of the yarn hanging robot 74 . The suction gun 71 has a suction arm 711 and a suction nozzle 712 .

A suction hose 713 connected to a negative pressure source is connected to the suction arm 711 , whereby a suction flow is generated in the suction gun 71 . The base end side of the suction arm 711 is connected to the yarn hanging robot 74 . The suction nozzle 712 is disposed on the front end of the suction arm 711 . The suction nozzle 712 sucks the yarn Y. The front end side surface of the suction nozzle 712 is formed in a hemispherical shape. The suction nozzle 712 is connected to the suction arm 711 via a shaft, and is elastically movable relative to the suction arm 711 by a spring or the like in the axial direction. The suction gun 71 is connected to a control unit 94 (refer to FIG. 6 ), and the control unit 94 controls execution and stop of suction and capture.

As shown in FIGS. 7 to 9 and 11 , the receiving portion 72 is in contact with the suction gun 71 so as to hold the first yarn end Y1 caught by the suction gun 71 between the suction gun 71 . Specifically, the receiving portion 72 is in contact with the front end side of the suction nozzle 712 so as to sandwich the first yarn end Y1 sucked and caught by the suction nozzle 712 between the front end side of the suction nozzle 712 .

The receiving portion 72 has an elastic member 721 formed with a concave portion 721h. The inner surface of the concave portion 721h includes a tapered surface that is inclined inward as it goes toward the bottom side. Here, the recessed portion 721h is formed in a hemispherical concave shape corresponding to the front end side of the suction nozzle 712 . The elastic member 721 is formed of, for example, urethane rubber or the like. The receiving portion 72 is located on the lower side in the vertical direction with respect to the center of the yarn supply package P1 (one side in the direction perpendicular to the axial direction of the yarn supply package P1). The receiving part 72 includes: a first receiving part 72A, which is in contact with the suction gun 71, so as to clamp the first yarn end Y1 of the first yarn supplying package P11 between the suction gun 71; and a second receiving part 72B, which is connected to the suction gun 71. The suction gun 71 contacts so that the first yarn end Y1 of the second yarn supplying package P12 is clamped between the suction gun 71 and the suction gun 71 . For example, the first receiving portion 72A is arranged on one end side of the replacement unit 93 in the Y direction, and the second receiving portion 72B is arranged on the other end side of the replacement unit 93 in the Y direction.

The air cylinder 73 guides the receiving portion 72 from the first position to the second position in a direction away from the yarn supply package P1. The air cylinder 73 has a piston rod 731 provided with a receiving portion 72 on the front end side, and a cylinder barrel 732 into which the piston rod 731 is inserted. The air cylinder 73 has a throttling element (not shown) for throttling the exhaust of air. The air cylinder 73 is connected to the control unit 94 , and the supply of air to the air cylinder 73 is controlled by the control unit 94 . Throttling of the cylinder 73 can be realized, for example, by providing a throttle valve on the exhaust side.

The piston rod 731 has, for example, a rod shape with a circular cross section. The front end of the piston rod 731 is fixed to the end of the receiving portion 72 opposite to the concave portion 721h. The piston rod 731 is arranged obliquely with respect to the horizontal direction such that the front end side in the axial direction is higher than the base end side. The piston rod 731 is arranged obliquely so as to be located inside in the Y direction as it goes toward the front end side. The center of the concave portion 721 h of the receiving portion 72 is located on the axis of the piston rod 731 . The cylinder 732 is, for example, cylindrical. The cylinder 732 is supported by the frame 93F of the replacement unit 93 via the bracket BR1.

Such an air cylinder 73 expands the piston rod 731 by supplying air, for example, and the receiving portion 72 is located at the first position (see (a) of FIG. 15 ). In this state, the throttle acts as a resistance to prevent air from being discharged from the cylinder 73 . As a result, an urging force is generated that biases the receiving portion 72 from the second position toward the first position, and the receiving portion 72 is held at the first position. Then, when the receiving portion 72 is pressed toward the cylinder 732 against the acting force, the piston rod 731 shrinks, and the receiving portion 72 moves away from the yarn supplying package P1 along the axial direction of the piston rod 731 to the second position. position (see (c) of Figure 15). In addition, in the cylinder 73, the throttling member that throttles the exhaust of air constitutes an urging holding unit that urges the receiving portion 72 from the second position toward the first position to hold it at the first position. .

The first position is a position within the range of the distance from the knot KN to the length from the knot KN to the first yarn end Y1. The first position is the position of the receiving portion 72 when the piston rod 731 of the cylinder 73 is in a state of maximum extension. The second position is a position farther from the yarn supply package P1 than the first position. For example, the second position is separated from the first position by, for example, 100 mm or more. The second position is the position of the receiving portion 72 when the piston rod 731 of the air cylinder 73 shrinks to a minimum. In addition, the second position is between one end and the other end of the yarn supply package P1 in the width direction of the yarn supply package P1 in a state where the peg 25 is operated and the end surface of the adapter 8 faces the suction gun 71 side. range of locations.

The air cylinder 73 includes: a first air cylinder (the first guide part) 73A, which guides the first receiving part 72A to a direction away from the first yarn supply package P11; and a second air cylinder (the second guide part) 73B, which guides the second The receiving portion 72B is guided in a direction away from the second yarn supply package P12. The first position of the second receiving portion 72B is lower than the first position of the first receiving portion 72A. The second position of the second receiving portion 72B is lower than the second position of the first receiving portion 72A. The first air cylinder 73A is arranged on one end side in the Y direction in the exchange unit 93 , and the second air cylinder 73B is arranged on the other end side in the Y direction in the exchange unit 93 .

As shown in FIGS. 7 to 10 , the yarn hanging robot 74 moves the suction gun 71 . The yarn hanging robot 74 is connected to the base end side of the suction gun 71 . The yarn hanging robot 74 includes a link mechanism and a plurality of motors. The yarn hanging robot 74 is supported by the frame 93F of the replacement unit 93 via the bracket BR2. The yarn hanging robot 74 is arranged at the center of the replacement unit 93 in the Y direction. The yarn hanging robot 74 is located between the first receiving part 72A and the second receiving part 72B in the Y direction. The yarn hanging robot 74 is not particularly limited, and various known robot arms can be used.

The yarn hanging robot 74 is connected to the control unit 94 . The yarn hanging robot 74 performs knot removal processing under the control of the control unit 94 . That is, the yarn hanging robot 74 brings the suction nozzle 712 of the suction gun 71 into contact with the receiving portion 72 at the first position, and guides the receiving portion 72 by the air cylinder 73 while the suction nozzle 712 is in contact with the receiving portion 72. While guiding the suction nozzle 712 to the second position in a direction away from the yarn supply package P1.

Specifically, the yarn hanging robot 74 brings the suction nozzle 712 into contact with the first receiving portion 72A at the first position corresponding to the first receiving portion 72A, and in a state where the suction nozzle 712 is in contact with the first receiving portion 72A, While guiding the first receiving part 72A by the first air cylinder 73A, the suction nozzle 712 is moved to the second position corresponding to the first receiving part 72A in a direction away from the first yarn supply package P11. The yarn hanging robot 74 brings the suction nozzle 712 into contact with the second receiving portion 72B at the first position corresponding to the second receiving portion 72B, and while the suction nozzle 712 is in contact with the second receiving portion 72B, it passes through the second receiving portion 72B. 2. The air cylinder 73B moves the suction nozzle 712 to the second position corresponding to the second receiving part 72B in a direction away from the second yarn supplying package P12 while guiding the second receiving part 72B.

As shown in FIG. 6 , the control unit 94 is an electronic control unit composed of a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), an I/O port, and a communication port. Programs for controlling each part of the travel unit 90 , the lift unit 91 , the holding unit 92 , and the replacement unit 93 are recorded in the ROM. Each function of the control unit 94 is executed under the control of the CPU by reading predetermined computer software into hardware such as the CPU and the main storage unit. The control unit 94 controls at least the suction gun 71, the air cylinder 73, and the yarn hanging robot 74, and executes knot removal processing. The control unit 94 controls at least the suction gun 71, the yarn hanging robot 74, and the yarn joining device 60, and performs yarn joining processing.

Next, a series of operations of the yarn joining processing device 9A, including the knot removal process, will be described in detail.

In the following description, when the first yarn end Y1 of the first yarn supplying package P11 and the second yarn end Y1 of the second yarn supplying package P12 are spliced using FIGS. 12 to 16 , the An example of releasing the knot KN provided on the outer peripheral surface of the yarn layer YL of the first yarn supplying package P11 will be described. Here, the first yarn supply package P11 is a newly loaded full package, and the second yarn supply package P12 is a package that is being unwound.

As shown in FIG. 12 , in the initial state, for example, the peg rotating device (not shown) of the yarn joining device 60 is not operating the peg 25, the first yarn feeding package P11 has not rotated, and the joint of the adapter 8 is not rotated. The end face faces the side opposite to the suction gun 71 side. Air is not supplied to the first air cylinder 73A, the piston rod 731 shrinks, and the first receiving portion 72A is located at the second position.

In such an initial state, as shown in FIG. 13 , first, the peg 25 is operated to rotate the first yarn supply package P11 so that the end surface of the adapter 8 faces the suction gun 71 side. The control unit 94 controls the yarn hanging robot 74 to move the suction nozzle 712 of the suction gun 71 so that the suction nozzle 712 contacts the suction port of the holding hole 81 holding the first yarn end Y1 in the splicer 8 . At the same time, the suction of the suction gun 71 is started by the control unit 94, and the first yarn end Y1 is sucked and caught by the suction nozzle 712. In addition, air is supplied to the first air cylinder 73A by the control unit 94 to expand the piston rod 731 and position the first receiving portion 72A at the first position.

Next, as shown in FIG. 14 , the control unit 94 controls the yarn hanging robot 74 to move the suction nozzle 712 that has sucked and caught the first yarn end Y1, so that the suction nozzle 712 and the concave portion 721h of the first receiving portion 72A contact and clamp the first yarn end Y1 between them. In this state, as shown in (a) of FIG. 15 , the yarn hanging robot 74 is controlled by the control unit 94 to press the suction nozzle 712 along the axial direction of the piston rod 731 against the force of the first cylinder 73A. Enter the concave portion 721h of the first receiving portion 72A. Thus, as shown in (b) of FIG. 15 , the piston rod 731 shrinks, and the suction nozzle 712 and the first receiving portion 72A are guided along the axis of the piston rod 731 while being guided by the first cylinder 73A in a state of mutual contact. Move in the direction away from the first yarn supply package P11.

Then, the yarn hanging robot 74 is controlled by the control unit 94 to continue to press the suction nozzle 712 into the first receiving portion 72A. Thus, as shown in (c) of FIG. 15 , the piston rod 731 is further reduced, and the suction nozzle 712 and the first receiving portion 72A are guided by the first cylinder 73A while being guided by the first air cylinder 73A while the suction nozzle 712 and the first receiving portion 72A are in contact with each other along the direction of the piston rod 731. The axial direction moves away from the first yarn supply package P11 to the second position. As a result of the above, as shown in FIG. 16, the first yarn end Y1 can be strongly pulled from the first position PA of the first receiving portion 72A to the second position in a direction away from the first yarn supplying package P11. PB. As a result, the knot KN including the slip knot of the first yarn supplying package P11 is untied.

Afterwards, the control unit 94 controls the yarn hanging robot 74 to move the suction nozzle 712 that has sucked and caught the first yarn end Y1 to the yarn splicing device 60, and then stops the suction of the suction nozzle 712 to release the suction and catch. The yarn end Y1 is set (guided) to the yarn joining device 60 . In addition, the control unit 94 controls the suction gun 71 and the yarn hanging robot 74 so that the suction nozzle 712 sucks and catches the second yarn end of the second yarn supplying package P12, and after the suction nozzle 712 is moved to the yarn splicing device 60, Then, the suction of the suction nozzle 712 is stopped to release the suction and catch, and the second yarn end of the second yarn supplying package P12 is set to the yarn joining device 60 . Then, the control unit 94 controls the yarn joining device 60 so that the first yarn end Y1 of the first yarn supplying package P11 is spliced (connected) to the second yarn end Y1 of the second yarn supplying package P12.

In addition, when splicing the first yarn end Y1 of the second yarn supplying package P12 that is newly fed into the second yarn end Y1 of the first yarn supplying package P11 that is being unwound, the setting at the second yarn end Y1 is released. In the case of the knots KN on the outer peripheral surface of the yarn layer YL of the yarn supply package P12, it is also the same as the examples shown in FIGS. 12 to 15 described above. In this case, as shown in FIG. 17, the first yarn end Y1 can be strongly pulled to the second position from the position of the first position PA of the second receiving portion 72B in a direction away from the second yarn supplying package P12. PB, can untie the knot KN including the slip knot of the second yarn supply package P12.

As described above, in the knot releasing device 70 , the yarn Y can be sandwiched between them by bringing the suction gun 71 which has captured the first yarn end Y1 into contact with the receiving portion 72 . Then, in this state, the receiving portion 72 is guided by the air cylinder 73, whereby the first yarn end Y1 can be strongly pulled in a direction away from the yarn supply package P1 (pull the first yarn end Y1 in a clamped state. ), can untie knots KN including slip knots. Therefore, according to the knot releasing device 70, it is not necessary to supply a large amount of compressed fluid to the suction gun 71 to generate a negative pressure for strongly pulling the yarn Y, and it is not necessary to provide a yarn clamp for clamping the yarn Y to the suction gun 71. The holding mechanism can release the knot KN including the sliding knot of the yarn package P1.

In the knot releasing device 70, the first position is a position within the range of the distance from the knot KN to the length from the knot KN to the first yarn end Y1. In this case, the suction gun 71 that has caught the wound portion of the yarn layer YL in the yarn supply package P1 can be reliably brought into contact with the receiving portion 72 . In addition, the second position is a position in the range between one end and the other end of the yarn supply package P1 in the width direction of the yarn supply package P1. In this case, when the first yarn end Y1 is strongly pulled away from the yarn supply package P1 by the air cylinder 73 guiding the receiving portion 72, the yarn layer YL wound around the yarn supply bobbin B1 can be suppressed. The yarn portion after the winding is completed moves along the width direction of the yarn supply package P1 until it is detached from the yarn supply bobbin B1.

In the knot releasing device 70 , the air cylinder 73 urges the receiving portion 72 from the second position toward the first position to hold it at the first position. In this case, the suction gun 71 is in close contact with the receiving portion 72, and the yarn Y can be securely clamped.

In the knot releasing device 70, the receiving part 72 has the elastic member 721 formed with a concave part 721h, and the inner surface of the concave part 721h includes a tapered surface inclined inwardly as it goes to the bottom side. Thereby, when the suction gun 71 which caught the 1st yarn end Y1 is brought into contact with the receiving part 72, the yarn Y can be clamped reliably between them.

In the knot removing device 70 , the suction gun 71 is provided at the front end of the yarn hanging robot 74 . Thus, the yarn hanging robot 74 can easily operate the suction gun 71 .

In the knot releasing device 70, the knot KN is located on one side with respect to the center of the yarn supply package P1 in a direction perpendicular to the axial direction of the yarn supply package P1. The receiving portion 72 is located on the same side as the knot KN with respect to the center of the yarn supply package P1. In this case, the first yarn end Y1 can be effectively guided in a direction away from the yarn supplying package P1.

In the knot releasing device 70, the yarn supply package P1 includes a first yarn supply package P11 and a second yarn supply package P12, the receiving part 72 includes a first receiving part 72A and a second receiving part 72B, and an air cylinder 73 includes a first cylinder 73A and a second cylinder 73B. The yarn hanging robot 74 brings the suction gun 71 into contact with the first receiving portion 72A at the first position corresponding to the first receiving portion 72A, and while the suction gun 71 is in contact with the first receiving portion 72A, The air cylinder 73A guides the first receiving portion 72A, and moves the suction gun 71 to the second position corresponding to the first receiving portion 72A in a direction away from the yarn supply package P1. In addition, the yarn hanging robot 74 brings the suction gun 71 into contact with the second receiving portion 72B at the first position corresponding to the second receiving portion 72B, and while the suction gun 71 is in contact with the second receiving portion 72B, The second receiving portion 72B is guided by the second air cylinder 73B, and the suction gun 71 is moved to the second position corresponding to the second receiving portion 72B in a direction away from the yarn supply package P1. According to such a configuration, it is possible to handle the release of the knots KN respectively corresponding to the two yarn supply packages P1.

The yarn joining processing device 9A and the yarn feeding device 100 are equipped with the knot releasing device 70, and therefore, similarly to the above, there is no need to supply a large amount of compressed fluid to the suction gun 71 to generate a negative pressure for strongly pulling the yarn Y, and it is not necessary to The suction gun 71 is provided with a yarn clamping mechanism for clamping the yarn Y, and can release the knot KN including the slip knot of the yarn supply package P1.

In this embodiment, while the yarn Y is clamped by bringing the suction gun 71 which has caught the first yarn end Y1 into contact with the receiver 72, the yarn supply package P1 can be rotated so as to clean the yarn of the yarn supply package P1. Tension may be applied to the yarn part of the layer YL after winding, and the yarn supply package P1 may not be rotated. Energy consumption can be saved without rotating the yarn supply package P1. In addition, in the present embodiment, while the suction gun 71 that caught the first yarn end Y1 is brought into contact with the receiving portion 72 to clamp the yarn Y, the suction by the suction gun 71 may be continued or may be stopped. When the suction by the suction gun 71 is stopped, energy consumption can be saved.

As mentioned above, although embodiment of one aspect of this invention was demonstrated, one aspect of this invention is not necessarily limited to the said embodiment, Various changes are possible in the range which does not deviate from the summary.

In the above embodiment, the knot releasing device 70 is controlled by collectively controlling the traveling unit 90, the lifting unit 91, the holding unit 92, the changing unit 93, and the control unit 94 of the yarn splicing device 60 of the package changing device 9 Although the description has been made as an example, it is not limited thereto. The control unit 94 can also be specially provided for the control of the knot releasing device 70 . In addition, even if the control part 94 is not installed in the package exchanging apparatus 9, it may be installed in the position away from the package exchanging apparatus 9 so that it can communicate by wire or wirelessly.

In the above embodiments and the above modifications, the suction nozzle 712 of the suction gun 71 can also be brought into contact with the receiving portion 72 by using the magnetic force generated by the magnet. In the above-mentioned embodiment and the above-mentioned modified example, the throttle of the exhaust gas of the cylinder 73 exerts force on the receiving part 72 from the second position toward the first position, but it is not limited to this, and the elastic force generated by the spring can also be used. And the magnetic force generated by the magnet urges the receiving portion 72 from the second position toward the first position. In the above-mentioned embodiment and the above-mentioned modifications, the false twist processing machine 1 has been described as an example of the yarn processing device, but the present invention is not limited thereto. That is, as an example of the processing section 3, an apparatus for performing twisted yarn processing (false twist processing) has been described as an example, but it can also be applied to an apparatus for performing untwisted yarn processing (air jet processing).

In the air cylinder 73 of the above-mentioned embodiment and the above-mentioned modified example, the movement (forward) of the receiving portion 72 when the piston rod 731 is extended to move (advance) toward the yarn supplying package P1 is smooth, so that Exhaust throttling is one-way flow. In the air cylinder 73 of the above-mentioned embodiment and the above-mentioned modified example, when the receiving part 72 moves away from the yarn supplying package P1 and is located at the second position, since the air is discharged from the air cylinder 73, it is not necessary to Maintain resistance (force). In the cylinder 73 of the above-mentioned embodiment and the above-mentioned modified example, it is also possible to clamp between the receiving part 72 and the suction gun 71 only during the movement of the receiving part 72 by pressing the suction nozzle 712 relative to the receiving part 72. Hold the first yarn end Y1.

1: False twist processing machine 2: Yarn feeding department 3: Processing Department 4: Winding section 8: Adapter 9: Package body replacement device 9A: Splicing processing device 20: creel (creel for yarn) 21: Creel abutment 22: Pillar 1 23: 2nd Pillar 24: Partition board 25: Studs (1st mounting part, 2nd mounting part) 29: clip 31: Anti-twist yarn guide 32: The first heating device 33: cooling device 34: False twist device 35: Second heating device 36: Yarn feeding roller 41: Winding device 42: Package stocker 60: Yarn splicing device (yarn splicing part) 70: Knot release device (knot release device for yarn package) 71: Suction gun (yarn catching part) 72: Undertake Department 72A: The first undertaking department 72B: The second undertaking department 73: cylinder (guide part) 73A: 1st cylinder (1st guide part) 73B: The second cylinder (the second guide part) 74: Yarn hanging robot (yarn catching part moving part) 81: Holding hole 90: Marching unit 91: Lifting unit 92: Holding unit 93: Replacement unit 93F: frame 94: Control Department 98: track 100: Yarn feeding device 361: Yarn feeding roller 362: Yarn feeding roller 363: Yarn feeding roller 711: suction arm 712: Nozzle 713: Hose 721: elastic member 721h: concave part 731: piston rod 732: Cylinder 911: workbench 912: Guidance Department 931: abutment 932: Turning device 932A:Rotary drive 932B: Swivel arm 933: Recovery device 933A: Yarn feeding bobbin supporting part 934: supply device 934A: Yarn package supply part 936:Rotary table B1: Yarn feeding bobbin (bobbin) B2: winding bobbin BR1: Bracket BR2: Bracket F1: side F2: side KN: Knot P1: Yarn package (yarn package) P2: winding package body P11: The first yarn supply package (the first yarn package) P12: The second yarn supply package (the second yarn package) PA: 1st position PB: 2nd position Y: Yarn Y1: 1st yarn end (the end of the yarn portion at the end of winding, the yarn end on the outer layer side) YL: yarn layer

Fig. 1 is a diagram showing a yarn feeding device of an embodiment. Fig. 2 is a perspective view showing the yarn supplying package with the adapter attached thereto. Fig. 3 is a perspective view showing a creel. Fig. 4 is a perspective view showing a package exchanging device. Fig. 5 is a diagram showing a schematic configuration of an exchange unit. Fig. 6 is a block diagram showing the functional configuration of the package exchanging device. Fig. 7 is a plan view showing the knot releasing device. Fig. 8 is a perspective view showing a knot releasing device. Fig. 9 is a front view showing the knot releasing device. Fig. 10 is a perspective view showing a suction gun and a yarn hanging robot. Fig. 11 is a perspective view showing a receiving portion and an air cylinder. Fig. 12 is a top view of a knot-releasing device for knot-releasing treatment. Fig. 13 is a plan view showing the joint release device subsequent to Fig. 12 . Fig. 14 is a plan view showing the joint release device subsequent to Fig. 13 . (a) of Fig. 15 is a perspective view showing the follow-up receiving portion and the cylinder of Fig. 14 . (b) of FIG. 15 is a perspective view of the follow-up receiving portion and the cylinder of (a) of FIG. 15 . (c) of FIG. 15 is a perspective view of the follow-up receiving portion and the cylinder of (b) of FIG. 15 . Fig. 16 is a schematic diagram showing a state in which knot-releasing processing is performed on the first yarn supplying package. Fig. 17 is a schematic diagram showing a state in which knot-releasing processing is performed on the second yarn supply package.

72: Undertake Department

72B: The second undertaking department

73: cylinder (guide part)

73B: The second cylinder (the second guide part)

731: piston rod

732: Cylinder

B1: Yarn feeding bobbin (bobbin)

KN: Knot

P1: Yarn package (yarn package)

P12: The second yarn supply package (the second yarn package)

PA: 1st position

PB: 2nd position

Y: Yarn

Y1: 1st yarn end (the end of the yarn portion at the end of winding, the yarn end on the outer layer side)

YL: yarn layer

Claims (10)

A knot releasing device (70) for a yarn package, for the yarn portion of the yarn layer (YL) formed by winding a yarn (Y) on a bobbin (B1) by a knot including a slip knot (KN) Knot the yarn package (P1) fixed on the outer peripheral surface of the above yarn layer, and untie the knot: the knot releasing device of the yarn package has: The yarn catching part (71) catches the end (Y1) of the above-mentioned wound yarn part by suction; A receiving part (72) contacting the above-mentioned yarn catching part so as to sandwich the end of the above-mentioned wound yarn part caught by the above-mentioned yarn catching part between the above-mentioned yarn catching part; a guiding part (73), guiding the receiving part from the first position (PA) to the second position (PB) in a direction away from the yarn package; and The yarn catching part moving part (74) brings the yarn catching part into contact with the receiving part at the first position, and guides the yarn catching part by the guide part while the yarn catching part contacts the receiving part. The receiving portion moves the yarn catching portion to the second position in a direction away from the yarn package. The yarn package knot releasing device according to claim 1, wherein, The first position is a position within a distance from the knot to a length from the knot to the end of the wound yarn portion. The knot releasing device of the yarn package according to claim 1 or 2, wherein, The second position is a position in a range between one end and the other end of the yarn package in the width direction of the yarn package. The yarn package knot releasing device according to any one of Claims 1 to 3, wherein, The guide portion has an urging holding unit that urges the receiving portion from the second position toward the first position and holds the receiving portion at the first position. The yarn package knot releasing device according to any one of claims 1 to 4, wherein, The above-mentioned receiving part has an elastic member (721) formed with a concave part (721h), The inner surface of the concave portion includes a tapered surface inclined inwardly as it goes toward the bottom side. The yarn package knot releasing device according to any one of Claims 1 to 5, wherein, The yarn catching unit is provided at a front end of the yarn catching unit moving unit. The yarn package knot releasing device according to any one of claims 1 to 6, wherein, The above-mentioned knot is located on one side relative to the center of the above-mentioned yarn package in a direction perpendicular to the axial direction of the above-mentioned yarn package, The receiving portion is located on the same side as the knot with respect to the center of the yarn package. The yarn package knot releasing device according to any one of claims 1 to 7, wherein, The yarn packages include a first yarn package (P11) and a second yarn package (P12), The above-mentioned undertaking department includes: The first receiving part (72A) is in contact with the yarn catching part so as to sandwich the end of the wound yarn part of the first yarn package with the yarn catching part; and The second receiving part (72B) is in contact with the above-mentioned yarn catching part so as to sandwich the end part of the above-mentioned winding-finished yarn part of the above-mentioned second yarn package between the above-mentioned yarn catching part, The above guides include: The first guide part (73A) guides the first receiving part in a direction away from the yarn package; and The second guide part (73B) guides the above-mentioned second receiving part in a direction away from the above-mentioned yarn package body, The moving part of the yarn catching part is, The yarn catching part is brought into contact with the first receiving part at the first position corresponding to the first receiving part, and while the yarn catching part is in contact with the first receiving part, the 1. a guide portion guides the first receiving portion to move the yarn catching portion to the second position corresponding to the first receiving portion in a direction away from the yarn package, The yarn catching part is brought into contact with the second receiving part at the first position corresponding to the second receiving part, and while the yarn catching part is brought into contact with the second receiving part, the 2. The guide portion guides the second receiving portion to move the yarn catching portion in a direction away from the yarn package to the second position corresponding to the second receiving portion. A yarn splicing processing device (9A), comprising: The knot releasing device of the yarn package according to Claim 8; and The yarn splicing part (60) is used to connect the yarn end on the outer layer side of the first yarn package with the yarn end on the inner layer side of the second yarn package, or connect the yarn end of the first yarn package to The yarn end on the inner layer side is connected to the yarn end on the outer layer side of the second yarn package. A yarn feeding device (100), comprising: The yarn feeder (20) has a first mounting portion (25) for mounting the above-mentioned first yarn package, and a second mounting portion (25) for mounting the above-mentioned second yarn package; The knot releasing device of the yarn package according to Claim 8; and The yarn splicing part (60) is used to connect the yarn end on the outer layer side of the first yarn package with the yarn end on the inner layer side of the second yarn package, or connect the yarn end of the first yarn package to The yarn end on the inner layer side is connected to the yarn end on the outer layer side of the second yarn package.