JP2013056766A - Doffing device, and textile machine including the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve durability and thread capturing accuracy of a thread pull-out arm of a doffing device by improving the arm, and to improve arrangement flexibility of each component.SOLUTION: A thread capturing part 41 is mounted to the thread pull-out arm 36 to capture thread of a thread feeding bobbin. A support part 46 supports the thread pull-out arm 36 to be able to swing in an optional direction. A driving part 47 gives driving force for swinging the thread pull-out arm 36 to a first direction to the thread pull-out arm 36. A first guide 71 defines a swinging route of the thread pull-out arm 36 swung to the first direction by the driving part 47 in a direction different from the first direction.

Description

  The present invention mainly relates to a configuration of a doffing apparatus that collects a fully wound package and sets a new empty winding bobbin.

  There is known an automatic winder (yarn winding device) provided with a plurality of winding units. Each winding unit is configured to unwind the yarn from the yarn feeding bobbin and wind the unwound yarn around the winding bobbin to form a package. This type of automatic winder is described in Patent Document 1 and Patent Document 2, for example.

  The automatic winder described in Patent Literature 1 and Patent Literature 2 includes a doffing device that automatically collects a completed package. The doffing device is configured to remove the completed package from the winding unit and set a new empty winding bobbin to the winding unit.

  The doffing devices described in Patent Literature 1 and Patent Literature 2 have a yarn drawing arm (yarn gripping device) that guides the yarn of the yarn feeding bobbin to the newly set winding bobbin. As disclosed in Patent Document 1, the yarn drawing arm is configured to be extendable and contractable by an air cylinder, and has a configuration including a yarn catching portion (clamp cutting head) at the tip thereof. The yarn drawing arm extends the air cylinder to catch the yarn on the yarn supplying bobbin at a predetermined position, and guides the caught yarn to the vicinity of the empty winding bobbin by contracting the air cylinder.

  Further, as disclosed in Patent Document 2, the yarn drawing arm (yarn gripping device) is swingable in one direction via a bearing. The doffing device includes a cam mechanism for swinging and driving the yarn drawing arm. In this conventional doffing device, the yarn drawing arm is configured to swing in a plane.

JP 2009-286608 A JP 2006-341994 A

  Various functional parts are arranged in the doffing device and the winding unit. However, since these functional parts must be arranged so that the swinging thread pull-out arm does not collide, there is a problem in that the layout is limited.

  In addition, the configuration in which the yarn drawing arm is swung only in a plane like the conventional doffing device has a problem that it is weak against a force (lateral force) from a direction orthogonal to the swinging direction. That is, when a force in a direction orthogonal to the swingable direction is applied to the yarn pull-out arm, the bearing may be damaged, the yarn pull-out arm may be bent, the telescopic air cylinder may be damaged, and the like.

  Further, the yarn drawing arm is a long and narrow member, and has a configuration including a yarn catching portion (clamp cutting head) at the tip thereof. Therefore, there is a problem that the position of the yarn catching portion is easily shifted. When the position of the yarn catching portion is shifted, it becomes difficult to catch the yarn of the yarn feeding bobbin, and therefore there is a possibility that the replacement of the winding bobbin may fail.

  The present invention has been made in view of the above circumstances, and its main purpose is to improve the yarn drawing arm of the doffing device to improve the durability and yarn catching accuracy of the arm, and The purpose is to improve the degree of freedom of arrangement.

Means and effects for solving the problems

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

  According to the first aspect of the present invention, a package in which a predetermined amount of yarn unwound from a yarn supplying bobbin is wound on the outer periphery of the winding bobbin is doffed, and a yarn winding operation is performed on a new winding bobbin. The following configuration of the doffing device is provided. That is, this doffing device includes a main body frame, an arm part, a yarn catching part, a support part, a driving part, and a first guide. The yarn catching portion is attached to the arm portion and catches the yarn of the yarn feeding bobbin. The support portion supports the arm portion so as to be swingable in at least two directions. The driving unit applies a driving force that swings the arm unit in a first direction to the arm unit. The first guide defines a swing path of the arm portion that is swung in the first direction by the drive unit in a direction different from the first direction.

  By supporting the arm portion so as to be swingable in at least two directions in this way, the degree of freedom of movement of the yarn catching portion provided at the tip of the arm portion is improved. Further, since it can swing in at least two directions, even if a force from a specific direction is applied to the arm portion, the force can be released by the arm portion swinging in another direction. That is, it is possible to solve the problem that the yarn pulling arm of the conventional doffing device is weak against a force from a specific direction. Further, since the swing path of the arm portion can be set by the first guide, for example, the arm portion can be swung so as to avoid various functional parts included in the doffing device.

  According to the 2nd viewpoint of this invention, the textile machine of the following structures is provided. That is, this textile machine includes the above-described doffing device and a plurality of winding units that wind up the yarn unwound from the yarn feeding bobbin onto the winding bobbin to form a package. The winding unit includes a lower yarn catching guide member that catches the yarn of the yarn feeding bobbin and stands by at the yarn delivery position, and a second guide that positions the yarn catching portion at the yarn delivery position. .

  Thus, by positioning the yarn catching portion at the yarn delivery position, the yarn caught by the lower yarn catching guide member can be reliably received by the yarn catching portion.

  In the textile machine, it is preferable that a third guide that engages with the second guide is disposed on the yarn catching portion side of the arm portion or on the yarn catching portion.

  As described above, by providing the third guide in the vicinity of the yarn catching portion and engaging the two guides, the yarn catching portion can be reliably positioned.

  The textile machine is preferably configured as follows. That is, one of the second guide and the third guide includes a convex portion. The other of the second guide and the third guide includes a concave portion that fits into the convex portion, and a V-shaped groove that guides the convex portion to the concave portion.

  By adopting a configuration in which the convex portion is guided by the V-shaped groove, the convex portion and the concave portion can be fitted even if the yarn catching portion and the arm portion are slightly misaligned. Therefore, the yarn catching portion can be positioned reliably.

  The textile machine is preferably configured as follows. In other words, the winding unit includes a yarn joining device that joins the yarn divided between the yarn feeding bobbin and the winding bobbin. The lower thread catching guide member also has a function of catching the separated yarn end on the yarn feeding bobbin side and guiding it to the yarn joining device. The second guide is provided on a side of the yarn joining device.

  Thus, the lower thread catching and guiding member can serve as both the lower thread guide during doffing and the lower thread guide during yarn joining, so that the configuration of the winding unit can be simplified. Further, since the second guide is arranged on the side of the yarn joining device, the second guide does not get in the way during normal winding operation.

  In the above textile machine, it is preferable that the arm portion is configured to be stretchable.

  Thus, the arm portion can be extended when the yarn catching portion catches the yarn, and the arm portion can be retracted and stored compactly when the yarn catching portion is not operated. In addition, when an excessive force is applied to the arm portion configured to be extendable and contractible in this manner, the arm portion may be damaged. In this respect, according to the configuration of the present invention, since the arm portion is supported by the support portion that can swing in at least two directions, the force applied to the arm portion can be released by the swing of the arm portion. it can. Thereby, durability of the arm part which can be expanded and contracted improves.

  The textile machine is preferably configured as follows. That is, the arm portion is configured to be telescopic and extendable by a plurality of rod-like members having different diameters. The thread catching portion is provided on the thinnest bar-shaped member among the plurality of bar-shaped members. The thickest rod-shaped member among the plurality of rod-shaped members is attached to the main body frame via the support portion. The first guide regulates the movement of the thickest bar-shaped member.

  That is, since the base portion of the arm portion is guided by the first guide, the swing of the arm portion can be defined by the compact first guide.

  The textile machine is preferably configured as follows. That is, the doffing device includes a fourth guide that defines a standby position of the arm portion. The fourth guide regulates the movement of the thickest bar-shaped member.

  By providing the fourth guide in this way, the arm portion can be positioned at the standby position. In addition, since the thickest rod-shaped member is guided by the fourth guide, the arm portion can be freely expanded and contracted while the arm portion is guided by the fourth guide. Therefore, since the position of the yarn catching portion when the arm portion is extended can be accurately positioned, the yarn catching of the yarn feeding bobbin by the yarn catching portion can be more accurately performed.

  The textile machine is preferably configured as follows. That is, a first sliding member that reduces frictional resistance is attached to at least one of the thickest rod-shaped member and the first guide. The first guide guides the thickest bar-shaped member through the first sliding member.

  By providing the sliding member in this way, damage due to rubbing can be prevented.

  The textile machine is preferably configured as follows. That is, a second sliding member for reducing frictional resistance is attached to at least one of the second guide and the third guide. The second guide and the third guide are engaged via the second sliding member.

  The sliding member can smoothly match and remove the concave portion and the convex portion.

  In the textile machine, it is preferable that the first guide is a U-shaped member formed by bending a long plate member, and a central portion of the long plate member is attached to the main body frame.

  As a result, the first guide can be configured with a simple structure.

The front view which shows the whole structure of the automatic winder which concerns on one Embodiment of this invention. The side view of a winding unit. The side view which shows the mode at the time of the yarn parting of a winding unit. The side view which shows the mode at the time of the yarn splicing work of a winding unit. Side surface sectional drawing of a doffing apparatus. The side view which shows the mode at the time of the doffing start. The top view which shows the mode of the 4th guide vicinity. The side view which shows a mode when a thread | yarn drawer arm is extended. The side view which shows a mode when a thread | yarn is delivered to a thread | yarn drawer arm. The top view which shows the mode of the 2nd guide and the 3rd guide vicinity. The side view which shows a mode that the thread | yarn was pulled out to the cradle vicinity with the thread | yarn drawer arm. The top view which shows the mode of the 1st guide vicinity.

  Next, an automatic winder as a textile machine according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a front view showing a schematic configuration of the automatic winder 10.

  As shown in FIG. 1, the automatic winder 10 mainly includes a plurality of winding units 11 arranged side by side, a machine base control device 12, a yarn feeding bobbin supply device 13, and a doffing device 14. Yes.

  The machine base control device 12 is configured to be able to communicate with each winding unit 11. The operator of the automatic winder 10 can manage the plurality of winding units 11 collectively by appropriately operating the machine base control device 12.

  Each winding unit 11 is configured to unwind the yarn from the yarn supplying bobbin 15 and wind the wound yarn 16 around the winding bobbin while traversing. The winding bobbin in which the yarn 16 is wound is called a package 18.

  Between the yarn feeding bobbin supply device 13 and each winding unit 11, a yarn feeding bobbin conveying mechanism (not shown) configured by a belt conveyor or the like is disposed. The yarn supplying bobbin conveying mechanism is configured to convey a conveying tray 19 (FIG. 2) on which the yarn supplying bobbin 15 is placed to each winding unit 11. As shown in FIG. 2, the transport tray 19 is configured so that the yarn feeding bobbin 15 can be placed in a substantially upright state. The yarn supplying bobbin supplying device 13 is configured to place the yarn supplying bobbins 15 one by one on the conveying tray 19 and then send them to the yarn supplying bobbin conveying mechanism. With this configuration, the yarn supplying bobbin 15 can be supplied to each winding unit 11.

  The doffing device 14 travels to the position of the winding unit 11 when the package 18 becomes full in each winding unit 11 (a state in which a predetermined amount of yarn is wound), It is configured to remove and set an empty winding bobbin. The operations of the yarn feeding bobbin supply device 13 and the doffing device 14 are controlled by a machine control device 12.

  Next, the configuration of the winding unit 11 will be described with reference to FIG.

  Each winding unit 11 mainly includes a yarn supplying unit 20 and a winding unit 21.

  The yarn supplying unit 20 is configured to hold the yarn supplying bobbin 15 placed on the transport tray 19 at a predetermined position. Thereby, the yarn feeding bobbin 15 is held in a substantially upright state, and the yarn 16 can be appropriately unwound from the yarn feeding bobbin 15.

  The winding unit 21 includes a cradle 23 and a winding drum 17.

  The cradle 23 has a pair of bearing centers, and the winding bobbin 22 (or the package 18) is rotatably supported by sandwiching the winding bobbin 22 between the bearing centers. The cradle 23 is configured such that the outer periphery of the supporting package 18 can be brought into contact with the outer periphery of the winding drum 17.

  The winding drum 17 is for traversing the yarn 16 on the surface of the package 18 and rotating the package 18. The winding drum 17 is rotationally driven by a drive source (not shown) such as an electric motor. The package 18 can be driven and rotated by rotationally driving the winding drum 17 in a state where the outer periphery of the package 18 is in contact with the winding drum 17. A spiral traverse groove (not shown) is formed on the outer peripheral surface of the winding drum 17. The yarn 16 unwound from the yarn feeding bobbin 15 is wound around the surface of the package 18 while being traversed (traversed) with a certain width by the traverse groove. Thereby, the package 18 having a constant winding width can be formed.

  A bobbin stocker 39 for holding an empty winding bobbin 22 is provided above the cradle 23.

  In addition, each winding unit 11 includes, in order from the yarn feeding unit 20 side, in the yarn traveling path between the yarn feeding unit 20 and the winding unit 21, the unwinding assisting device 24, the tension applying device 25, and the yarn joining unit. The apparatus 26 and the yarn quality measuring device 27 are arranged. In the following description, the upstream side and the downstream side in the traveling direction of the yarn 16 may be simply referred to as “upstream side” and “downstream side”.

  The unwinding assisting device 24 includes a regulating member 28 that can cover the core tube of the yarn feeding bobbin 15. The restricting member 28 is configured in a substantially cylindrical shape and is disposed so as to contact a balloon formed on the yarn layer upper portion of the yarn feeding bobbin 15. The balloon is a portion where the yarn 16 unwound from the yarn supplying bobbin 15 is swung around by centrifugal force. By bringing the regulating member 28 into contact with the balloon, a tension is applied to the yarn 16 of the balloon portion, and the yarn 16 is prevented from being swung excessively. Thereby, the yarn 16 can be appropriately unwound from the yarn supplying bobbin 15.

  The tension applying device 25 applies a predetermined tension to the traveling yarn 16. In the present embodiment, the tension applying device 25 is configured by a gate type device in which movable comb teeth are arranged with respect to fixed comb teeth. The movable comb teeth are biased so that the comb teeth are engaged with each other. By passing the yarn 16 while bending the interdigitated comb teeth, an appropriate tension can be applied to the yarn 16 and the quality of the package 18 can be improved. However, the tension applying device 25 is not limited to the gate type, but may be a disk type, for example.

  When the yarn 16 between the yarn supplying bobbin 15 and the package 18 is in a divided state for some reason, the yarn joining device 26 combines the lower yarn on the yarn supplying bobbin 15 and the upper yarn on the package 18 side. It is intended for splicing. In the present embodiment, the yarn joining device 26 is configured as a splicer device that twists yarn ends together by a swirling air flow generated by compressed air. However, the yarn joining device 26 is not limited to the splicer device, and for example, a mechanical knotter or the like can be adopted.

  The yarn quality measuring device 27 is configured to monitor the thickness of the yarn 16 with an appropriate sensor. Further, a cutter (not shown) is provided in the vicinity of the yarn quality measuring device 27 for cutting the yarn 16 immediately when the yarn quality measuring device 27 detects an abnormality in the yarn thickness.

  On the lower side and upper side of the yarn joining device 26, a lower yarn guide pipe (lower yarn catching guide member) 29 for catching and guiding the yarn (lower yarn) on the yarn feeding bobbin 15 side, and a yarn (upper side) on the package 18 side. And an upper thread guide pipe 30 for capturing and guiding the thread). A suction port 31 is formed at the tip of the lower thread guide pipe 29, and a suction mouth 32 is provided at the tip of the upper thread guide pipe 30. Appropriate negative pressure sources are respectively connected to the two guide pipes 29 and 30, and a suction flow can be applied to the suction port 31 and the suction mouth 32.

  With this configuration, when the yarn is split between the yarn supplying bobbin 15 and the package 18, the suction port 31 of the lower yarn guide pipe 29 captures the lower yarn at the position shown in FIG. Thereafter, the lower thread guide pipe 29 is rotated upward about the shaft 33 to introduce the lower thread into the yarn joining device 26 as shown in FIG. The position where the lower thread guide pipe 29 introduces the lower thread into the yarn joining device 26 is referred to as an introduction position of the lower thread guide pipe 29 in this way.

  At substantially the same time, the upper thread guide pipe 30 is rotated upward from the position shown in FIG. 2 about the shaft 34, and the upper end of the upper thread existing on the surface of the package 18 is suctioned at the position shown in FIG. Captured by mouse 32. Subsequently, the upper thread guide pipe 30 rotates downward about the shaft 34 to introduce and guide the upper thread to the yarn joining device 26 as shown in FIG.

  Then, with the upper yarn and lower yarn being introduced into the yarn joining device 26 as shown in FIG. 4, the yarn joining device 26 is driven, so that the upper yarn and the lower yarn are joined, and the yarn feeding bobbin 15 The yarn 16 is made continuous with the package 18. Thereby, winding of the thread | yarn 16 to the package 18 can be restarted.

  Each winding unit 11 includes a unit control unit (not shown) for controlling each component included in the winding unit 11. Each unit control unit is configured to be able to communicate with the machine base control device 12.

  Next, the doffing device 14 will be specifically described.

  As shown in FIG. 1, the doffing device 14 includes a main body frame 35, a thread drawing arm (arm portion) 36, a cradle release arm 37, and a chucker 38 as main components.

  The main body frame 35 of the doffing device 14 is configured to be able to travel along the rail 40 disposed above the winding unit 11 along the direction in which the winding units 11 are arranged (left and right direction in FIG. 1). . A positioning block 66 is disposed on the rail 40 at a position corresponding to each winding unit 11. The main body frame 35 of the doffing device 14 includes a flapper mechanism (not shown) that can rotate between a state in which the positioning block 66 is engaged and a state in which the engagement is released. The doffing device 14 can be positioned and stopped at an appropriate position directly above the desired winding unit 11 by engaging the flapper mechanism with the positioning block 66.

  The yarn pull-out arm 36 is configured such that a plurality of rod-like members having different diameters are coaxially arranged in a nested manner, and can be expanded and contracted in a so-called telescope shape. In addition, in order to arrange | position so that it may nest as mentioned above, the some rod-shaped member is comprised by the hollow shape (tubular shape). However, the thinnest rod-shaped member may be solid. The yarn drawing arm 36 is configured as an air cylinder and can be extended and contracted by compressed air supplied from a compressed air source (not shown).

  As shown in FIG. 5, the yarn pull-out arm 36 is arranged so that its longitudinal direction is substantially along the vertical direction. A thread catcher 41 is attached to the tip (lower end) of the thinnest (smallest diameter) rod-like member 36a among the plurality of rod-like members constituting the telescopic yarn draw-out arm 36.

  As shown in FIG. 5, the yarn catching portion 41 includes a clamp portion 42 for gripping the yarn, a cutter portion 43 for cutting the yarn, and an air cylinder that is a drive source for the clamp portion 42 and the cutter portion 43. 44. The air cylinder 44 is connected to an air hose 45 that supplies compressed air for driving the air cylinder 44. The air hose 45 is routed along the longitudinal direction of the yarn drawing arm 36 as shown in FIG. Further, in order to follow the expansion and contraction of the thread drawing arm 36, the midway portion of the air hose 45 is wound in a coil shape to constitute a spiral air hose.

  The upper end of the thickest (largest diameter) rod-shaped member 36b among the plurality of rod-shaped members constituting the telescopic thread drawing arm 36 is supported by the support portion 46. The support portion 46 is configured to support the rod-shaped member 36b so as to be swingable (turnable). Thereby, the thread drawing arm 36 can swing.

  A drive unit 47 is connected to the thickest rod-shaped member 36b. This driving unit is for applying a driving force in a direction to move the yarn catching unit 41 in the substantially front-rear direction of the apparatus (left-right direction in FIG. 5) to the yarn drawing arm. As shown in FIG. 5, the drive unit 47 includes a link rod 48, an operation lever 49, and a drive cam 50.

  The link rod 48 connects the thickest rod-shaped member 36 b of the thread drawing arm 36 and the operation lever 49. The operation lever 49 is rotatably supported by a shaft 51 provided along the left-right direction of the apparatus. The drive cam 50 is fixed to a shaft 52 provided along the left-right direction of the apparatus. The shaft 52 is configured to be rotated by an electric motor (not shown). The operation lever 49 includes a cam follower 53 that contacts the end surface of the drive cam 50. The operation lever 49 is biased by a biasing spring 54 in a direction in which the cam follower 53 is pressed against the end face of the drive cam 50.

  With the above configuration, by rotating the drive cam 50 about the shaft 52, the cam follower 53 is pushed by the drive cam 50, and the operation lever 49 swings about the shaft 51. The swing of the operation lever 49 is transmitted to the thickest rod-shaped member 36 b of the yarn drawing arm 36 through the link rod 48. With the above configuration, the yarn catching portion 41 can be moved in the substantially front-rear direction of the apparatus by swinging the yarn drawing arm 36 around the support portion 46.

  The cradle opening arm 37 is configured so that the cradle 23 can be operated and opened to remove the full package 18 from the cradle 23.

  The chucker 38 is configured to be able to grip the empty winding bobbin 22 held by the bobbin stocker 39. The chucker 38 is attached to the shaft 55 so as to be rotatable. The doffing device 14 rotationally drives the chucker 38 between a position where the take-up bobbin 22 held by the bobbin stocker 39 is gripped and a position where the take-up bobbin 22 is attached to the cradle 23. A cam mechanism (not shown) is provided.

  Next, a characteristic configuration of the present embodiment will be described.

  As described above, in the conventional doffing device, the yarn drawing arm is configured to be swingable only in one direction (only in a plane). For this reason, the subject that it was weak to the force from the direction orthogonal to a rocking | swiveling direction occurred.

  Therefore, in the doffing device 14 of the automatic winder 10 according to this embodiment, the yarn drawing arm 36 is configured to be swingable in two directions.

  Specifically, it is as follows. That is, the support portion 46 that supports the thread drawing arm 36 includes a first shaft 67, a second shaft 68, and a suspension support 69.

  The first shaft 67 is disposed along a substantially left-right direction of the apparatus (a direction orthogonal to the paper surface of FIG. 5). The thread drawing arm 36 is attached so as to be swingable about the first shaft 67. By swinging the yarn pull-out arm 36 around the first shaft 67, the yarn catching portion 41 at the tip of the yarn pull-out arm 36 can be moved substantially in the front-rear direction (substantially left-right direction in FIG. 5). In the following description, the direction in which the yarn drawing arm 36 swings around the first shaft 67 (the direction indicated by the thick arrow in FIG. 5) is referred to as the first direction.

  On the other hand, the second shaft 68 is disposed substantially along the front-rear direction of the apparatus (left-right direction in FIG. 5), and is cantilevered by a suspension support 69 so as to be rotatable. Thus, the 1st axis | shaft 67 and the 2nd axis | shaft 68 are provided so that it may orthogonally cross. Further, the first shaft 67 and the second shaft 68 are integrally formed, and the first shaft 67 can rotate around the second shaft 68. Accordingly, the thread drawing arm 36 attached to the first shaft can also swing around the second shaft 68. By swinging the yarn drawing arm 36 around the second shaft 68, the yarn catching portion 41 at the tip of the yarn drawing arm 36 can be moved substantially in the left-right direction (substantially left-right direction in FIG. 1). In the following description, the direction in which the yarn drawing arm 36 swings around the second shaft 68 is referred to as a second direction.

  As described above, in the doffing device 14 of the present embodiment, the yarn pull-out arm 36 is swingably supported by two axes, so that the yarn pull-out arm 36 can be swung in an arbitrary direction.

  In this regard, in the conventional doffing device, since the yarn pull-out arm is supported by a single shaft, the swinging direction of the yarn pull-out arm is limited, and the force from a direction orthogonal to the swinging direction is weak. It is. In the doffing device 14 of the present embodiment, the yarn pull-out arm 36 is supported by two shafts so that it can swing in any direction. Therefore, no matter which direction force is applied to the yarn pull-out arm 36, The force can be released by swinging the thread drawing arm 36. That is, in the doffing device 14 of the present embodiment, the yarn pull-out arm 36 is not weak against a force from a specific direction, and therefore the breakage of the yarn pull-out arm 36 (and the support portion 46) can be prevented in advance. .

  By the way, the drive unit 47 provided in the doffing device 14 of the present embodiment has a simple configuration in which a drive force is applied to the yarn drawing arm 36 by the rotation of the drive cam 50. The drive unit 47 can swing the yarn pull-out arm 36 in the first direction (as shown by the thick arrow in FIG. 5), but does not restrict the swing in the second direction. Can not.

  Therefore, in the automatic winder 10 of the present embodiment, the doffing device 14 includes a first guide 71, a third guide 73, and a fourth guide 74 for restricting the swing of the yarn drawing arm 36 in the second direction. ing. Each winding unit 11 includes a second guide 72 that engages with the third guide.

  Next, the first guide 71, the second guide 72, the third guide 73, and the fourth guide 74 will be described in detail while explaining the doffing operation of the automatic winder 10 with reference to FIGS.

  The doffing operation by the doffing device 14 is performed when the package 18 is full. When it is detected that the package 18 is full, the unit controller immediately operates the cutter to cut the yarn 16. Thereby, the yarn 16 on the downstream side from the cut portion is wound around the package 18. At this time, the lower thread guide pipe 29 stands by at a position (capturing position) substantially at the lower end of the rotation stroke. When the yarn 16 is cut, the yarn 16 upstream from the cut portion is sucked into the suction port 31 of the lower yarn guide pipe 29. FIG. 6 shows how the yarn 16 is captured by the lower yarn guide pipe 29 in this way.

  Subsequently, the unit controller turns the lower thread guide pipe 29 around the shaft 33 as shown by the thick arrow in FIG. 8 and moves it to the position substantially at the upper end of the turning stroke (shown in FIG. 8). Note that the position of the suction port 31 at this time is called a yarn delivery position. The yarn 16 can be guided to the yarn delivery position by rotating the lower yarn guide pipe 29 while the yarn is captured by the suction port 31. The yarn delivery position is a position where the suction port 31 is slightly moved to the front side of the apparatus (right side in FIG. 8) rather than the introduction position (position shown in FIG. 4). This is to make it easier to catch (described later) the yarn 16 by the yarn catching portion 41 included in the doffing device 14.

  Thereafter, the unit control unit transmits a doffing request signal to the machine base control device 12. The machine control device 12 that has received the doffing request signal causes the doffing device 14 to travel to a position just above the winding unit 11 where the package 18 is fully wound and stops. When the doffing device 14 travels, in order to prevent the yarn drawing arm 36 from colliding with the winding unit 11 or the like, the yarn drawing arm 36 is put on standby at the standby position (position shown in FIGS. 5 and 6). Keep it. Specifically, this standby position is the end portion on the front side of the apparatus of the swing stroke of the yarn drawing arm 36 in the first direction.

  The doffing device 14 includes a fourth guide 74 that regulates swinging of the yarn drawing arm 36 in the second direction at the standby position. As shown in FIG. 7, the fourth guide 74 is formed in a substantially U shape in which the back side of the apparatus is opened in plan view, and between the support portion 46 and the yarn catching portion 41 of the yarn drawing arm 36. (Specifically, the middle part of the thickest rod-shaped member 36b) is arranged so as to be sandwiched inside the U-shape. The U-shaped portion of the fourth guide 74 is disposed so as to contact the rod-shaped member 36b from both sides in a substantially left-right direction (left-right direction in FIG. 7) of the apparatus. Thereby, the swinging of the yarn drawing arm 36 in the second direction can be restricted. Therefore, even when the doffing device 14 is traveling, the yarn drawing arm 36 does not swing in the second direction. That is, the yarn drawing arm 36 can be positioned at the standby position while the doffing device 14 is traveling.

  The fourth guide 74 has a third sliding member 75 having a low frictional resistance at a portion that contacts the yarn drawing arm 36. Thereby, since the 4th guide 74 guides the thread | yarn withdrawal arm 36 via the 3rd sliding member 75, it can prevent that the thread | yarn withdrawal arm 36 is damaged. Moreover, as shown in FIG. 5, the hose protection member 76 is arrange | positioned in the part which contacts the 4th guide 74 of the rod-shaped member 36b. As shown in FIG. 7, the hose protection member 76 is formed in a hollow shape, and is configured to allow the air hose 45 to be inserted therethrough. Thereby, it can prevent that the air hose 45 contacts the 4th guide 74 and is damaged.

  The doffing device 14 stopped immediately above the winding unit 11 operates the cradle 23 with the cradle release arm 37 and removes the fully packaged package 18 from the cradle 23. The removed package 18 moves to a conveyor (not shown) arranged behind the winding unit 11 and is sent to the next process. Subsequently, the doffing device 14 picks up one empty winding bobbin 22 stocked in the bobbin stocker 39 by the chucker 38 and rotates the chucker 38 so that the empty winding bobbin 22 is Move to the vicinity of the cradle 23 in the open state.

  Before and after the holding operation of the take-up bobbin 22 by the chucker 38, the doffing device 14 operates to extend the yarn pull-out arm 36 in the standby position, and catches the yarn attached to the tip of the yarn pull-out arm 36. The part 41 is lowered to the vicinity of the suction port 31 of the lower thread guide pipe 29 at the thread delivery position (FIG. 8). As described above, the yarn drawing arm 36 in the standby position is positioned by the fourth guide 74. Since the fourth guide 74 is configured to contact the thickest rod-shaped member 36b, the fourth guide 74 does not hinder the expansion / contraction movement of the yarn drawing arm 36. That is, the thread drawing arm 36 can be expanded and contracted while being positioned by the fourth guide 74.

  Subsequently, the doffing device 14 drives the drive unit 47 to swing the yarn drawing arm 36 around the first axis in the clockwise direction of FIG. 8 (toward the back side of the device). Here, as shown in FIG. 7, the fourth guide 74 is formed in a substantially U shape in which the rear side of the apparatus is opened in a plan view. Accordingly, the yarn pull-out arm 36 positioned by the fourth guide 74 can move in the fourth guide 74 toward the back side of the apparatus. In other words, while the yarn pulling arm 36 is guided by the fourth guide 74, the yarn pulling arm 36 can be swung toward the back side of the apparatus.

  When the yarn drawing arm 36 swings to a position where the yarn catching portion 41 can receive the yarn 16 caught by the lower yarn guide pipe 29 (the position shown in FIG. 9), the driving unit 47 causes the yarn drawing arm 36 to move. Stops swinging. The position of the yarn catching portion 41 at this time is called a yarn receiving position. The yarn receiving position is located in the vicinity of the yarn transferring position and upstream of the yarn transferring position.

  At the yarn receiving position, the yarn catching portion 41 grips the yarn 16 in the vicinity of the lower thread guide pipe 29 by the clamp portion 42, and at the position slightly above (downstream) the gripped portion, Disconnect. As a result, the yarn on the yarn feeding bobbin side held by the lower yarn guide pipe 29 is transferred to the yarn catching portion 41 of the doffing device 14.

  As described above, the lower thread guide pipe 29 of the winding unit 11 is originally a member for guiding the thread 16 (lower thread) on the yarn feeding bobbin 15 side to the yarn joining device 26. Therefore, it can be said that the lower thread guide pipe 29 of this embodiment has two functions of a member that guides the lower thread to the yarn joining device 26 and a member that passes the lower thread to the yarn catching section 41. Thus, the winding unit 11 can be simply configured by one member having two functions.

  Further, as described above, in the doffing device 14 of the present embodiment, the swing start position (standby position) of the yarn drawing arm 36 is positioned by the fourth guide 74 and is guided by the fourth guide 74. In this configuration, the yarn drawing arm 36 is swung. According to this configuration, since the swing path of the yarn pull-out arm 36 can be regulated, the yarn catching portion 41 can be accurately moved to the yarn receiving position. Thereby, the success rate of the delivery of the thread | yarn to the thread | yarn capture part 41 can be improved.

  However, since the yarn pull-out arm 36 is an elongated member, the position of the yarn catching portion 41 attached to the tip of the yarn pull-out arm 36 is easily shifted. Even if the swing path of the yarn drawing arm 36 is accurate, if the stop position of the doffing device 14 is misaligned, the position of the yarn catching portion 41 is also misaligned. In some cases, the delivery of the yarn to 41 may fail. Such a deviation of the stop position of the doffing device 14 may occur when the positioning block 66 is set to a position shifted from the original position (setting error or the like). Further, even when the yarn drawing arm 36 is bent for some reason, the yarn catching portion 41 may be displaced.

  Therefore, in the present embodiment, the engagement of the third guide 73 provided in the yarn catcher 41 and the second guide 72 provided in the winding unit 11 positions the yarn catcher 41 at the yarn receiving position. Is configured to do.

  As shown in FIG. 5, the third guide 73 is fixed to the yarn catching portion 41 and is disposed so as to protrude toward the back side of the apparatus. That is, the 3rd guide 73 is comprised as a convex part which protrudes toward the apparatus back side. On the other hand, as shown in FIG. 9 and the like, the second guide 72 is disposed in the vicinity of the yarn delivery position of the lower yarn guide pipe 29 (specifically, above the yarn joining device 26 in a side view). The second guide 72 is disposed at a position deviated from the yarn path between the yarn feeding bobbin 15 and the package 18 in the left-right direction of the apparatus (specifically, disposed above the side of the yarn joining apparatus 26). Have been). This prevents the second guide 72 from interfering with the traveling of the yarn 16 during normal winding of the yarn 16.

  As shown in FIG. 10, the second guide 72 is formed with a groove (concave portion) 77 formed substantially in the front-rear direction of the apparatus. The width of the groove 77 in the left-right direction of the device is substantially the same as or slightly wider than the thickness of the third guide 73 in the left-right direction of the device. Further, the end portion of the groove portion 77 on the front side of the device is open, and the end portion on the back side of the device is closed.

  With the above configuration, the third guide 73 can engage with the groove 77 of the second guide 72. By the engagement of the second guide 72 and the third guide 73, the yarn catching portion 41 can be positioned in the vicinity (yarn receiving position) of the lower yarn guide pipe 29. Since the third guide 73 is provided directly on the yarn catching portion 41, the yarn catching portion 41 can be accurately positioned by the engagement of the third guide 73.

  As shown in FIG. 10, a second sliding member 78 is attached to the third guide 73 at a portion in contact with the second guide 72. Therefore, the second guide 72 and the third guide 73 are engaged via the second sliding member 78. Thereby, engagement with the 2nd guide 72 and the 3rd guide 73 and engagement release can be performed smoothly.

  As shown in FIG. 10, the second guide 72 is formed with a V-shaped groove 79 that widens toward the front side of the apparatus in plan view. The end of the V-shaped groove 79 on the rear side of the apparatus communicates with the groove 77. With this configuration, the third guide 73 approaching from the front side of the apparatus can be introduced inside the groove 77 while being guided by the V-shaped groove 79. Thereby, even if the position of the 3rd guide 73 has shifted | deviated to some extent in the apparatus left-right direction, the 2nd guide 72 and the 3rd guide can be engaged. Therefore, for example, even when the stopping position of the doffing device 14 is shifted or when the yarn drawing arm 36 is bent, the second guide 72 and the third guide can be engaged. As a result, the yarn catcher 41 can be positioned reliably, and the success rate of the yarn delivery to the yarn catcher 41 can be further improved.

  With the configuration described above, the yarn catching portion 41 can reliably receive the yarn 16 (lower yarn) on the yarn feeding bobbin 15 side. When the yarn 16 is transferred from the lower yarn guide pipe 29 to the yarn drawing arm 36 in this way, the doffing device 14 causes the driving portion 47 to swing the yarn drawing arm 36 counterclockwise in FIG. As a result, the engagement between the second guide 72 and the third guide 73 is released, and the yarn drawing arm 36 is again positioned at the standby position by the fourth guide 74.

  Subsequently, the doffing device 14 pulls the yarn 16 of the yarn feeding bobbin 15 upward by operating the yarn drawing arm 36 to be contracted. Further, the doffing device 14 drives the driving unit 47 to swing the yarn drawing arm 36 to a position where the yarn 16 held by the yarn catching portion 41 passes through the vicinity of the cradle 23 (shown in FIG. 11). position). This position is referred to as a thread fixing position of the thread drawing arm 36.

  The doffing device 14 includes a first guide 71 that regulates swinging of the yarn drawing arm 36 in the second direction at the yarn fixing position. As shown in FIG. 12, the first guide 71 is formed in a substantially U shape in which the front side of the apparatus is opened in a plan view, and between the support portion 46 and the yarn catching portion 41 of the yarn drawing arm 36. (Specifically, the middle part of the thickest rod-shaped member 36b) is disposed so as to be sandwiched inside the U-shape. The U-shaped portion of the first guide 71 is disposed so as to contact the rod-shaped member 36b from both sides in a substantially left-right direction (left-right direction in FIG. 12) of the apparatus.

  With the above configuration, the yarn pull-out arm 36 swings to the yarn fixing position while being guided by the U-shaped portion of the first guide 71. As a result, the yarn pull-out arm 36 can be reliably swung to the yarn fixing position, and the swing of the yarn pull-out arm 36 in the second direction at the yarn fixing position can be restricted.

  The rod-shaped member 36 b has a first sliding member 80 with a small frictional resistance at a portion that contacts the first guide 71. Thereby, since the 1st guide 71 guides the thread | yarn withdrawal arm 36 via the 1st sliding member 80, it can prevent that the thread | yarn withdrawal arm 36 is damaged. As shown in FIG. 12, the first guide 71 is formed by bending a sheet metal member formed in an elongated rectangular shape into a U shape. The central portion of the sheet metal in the longitudinal direction is fixed to the main body frame with screws 81. Thus, the 1st guide 71 can be formed with the simple structure of bending a sheet metal. Further, since the first guide 71 is made of sheet metal and has a certain degree of springiness, it is possible to prevent the first guide 71 and the yarn pull-out arm 36 from being damaged when they contact each other.

  When the yarn drawing arm 36 swings to the yarn fixing position, the doffing device 14 fixes the yarn 16 to the empty winding bobbin 22 picked up from the bobbin stocker 39 by the chucker 38 by a known method such as bunch winding. To do. Then, an empty winding bobbin 22 to which the yarn is fixed is attached to the cradle 23. The doffing operation is completed as described above. As described above, the swinging of the yarn drawing arm 36 in the second direction is regulated by the first guide 71 at the yarn fixing position. That is, since the yarn drawing arm 36 can be accurately positioned at the yarn fixing position, the yarn 16 captured by the yarn catching portion 41 can be reliably guided to a position suitable for bunch winding. Therefore, the yarn 16 can be reliably fixed to the empty winding bobbin 22.

  As shown in FIGS. 7 and 12, in the present embodiment, the first guide 71 and the fourth guide 74 are formed so as to guide the thread drawing arm 36 in an oblique direction with respect to the longitudinal direction of the apparatus. . Thereby, the thread | yarn drawer arm 36 of this embodiment can be rock | fluctuated in the diagonal direction with respect to the 1st direction. That is, the drive unit 47 by the cam mechanism can only apply a driving force that swings the yarn pull-out arm 36 in the first direction (substantially the front-rear direction of the apparatus). It cannot be swung in a direction different from the first direction. However, a first guide 71 and a fourth guide 74 that contact the yarn pull-out arm 36 from a direction different from the first direction are provided, and the yarn pull-out arm 36 is swung by the first guide 71 and the second guide. By guiding, the swing path can be defined so as to swing the yarn drawing arm 36 in a direction different from the first direction. As described above, the drive unit 47, the first guide 71, and the fourth guide 74 cooperate to swing the yarn drawing arm 36 so as to draw an arbitrary swinging locus.

  Therefore, by appropriately setting the shape of the first guide 71 or the fourth guide 74, for example, the configuration provided in the doffing device (eg, chucker 38) or the configuration provided in the winding unit (eg, bobbin stocker 39) is avoided. The yarn drawing arm 36 can be swung through such a swinging path. In the conventional doffing device, the yarn drawing arm could not be driven to swing freely in this way, so that each configuration of the doffing device and the winding unit does not interfere with the swinging locus of the yarn drawing arm. I had to put it in. That is, in the conventional doffing apparatus, the degree of freedom of arrangement of each component is low. In this regard, in the automatic winder 10 of the present embodiment, the yarn drawing arm 36 can swing so as to avoid each configuration, so that the degree of freedom of arrangement of each configuration can be improved.

  Further, as described above, the first guide 71 and the fourth guide 74 are disposed so as to guide the thickest rod-shaped member 36b of the yarn drawing arm 36. As described above, since the portion that is close to the base of the yarn pull-out arm 36 (portion close to the support portion 46) is guided, the first and second guides 71 and 74 themselves guide the yarn pull-out even if the range to be guided is narrow. The tip end portion (yarn catching portion 41) of the arm 36 can be swung greatly. As described above, the first guide 71 and the fourth guide 74 are configured to guide the root portion of the yarn pull-out arm 36, so that the first guide 71 and the fourth guide 74 can be configured compactly.

  As described above, the doffing device 14 of the present embodiment doffs the package 18 in which the yarn 16 unwound from the yarn supplying bobbin 15 is wound around the outer periphery of the winding bobbin 22 by a predetermined amount, and a new A doffing device 14 that performs a threading operation on the take-up bobbin 22 and is configured as follows. That is, the doffing device 14 includes a main body frame 35, a yarn drawing arm 36, a yarn catching portion 41, a support portion 46, a driving portion 47, and a first guide 71. The yarn catcher 41 is attached to the yarn pull-out arm 36 and catches the yarn 16 of the yarn feeding bobbin 15. The support portion 46 supports the yarn drawing arm 36 so as to be swingable in an arbitrary direction. The driving unit 47 applies a driving force to the yarn drawing arm 36 to swing the yarn drawing arm 36 in the first direction. The first guide 71 defines a swing path of the yarn drawing arm 36 that is swung in the first direction by the drive unit 47 in a direction different from the first direction.

  In this way, by supporting the yarn pull-out arm 36 so as to be swingable in an arbitrary direction, the swing path of the yarn pull-out arm 36 can be freely determined, so that the degree of freedom of movement of the yarn catcher 41 is improved. Further, since it can swing in any direction, even if a force from any direction is applied to the yarn pull-out arm 36, the force can be released by swinging the yarn pull-out arm 36. That is, it is possible to solve the problem that the yarn pulling arm of the conventional doffing device is weak against a force from a specific direction. Further, since the first guide 71 can freely set the rotation swing path of the yarn pull-out arm 36, for example, the yarn pull-out arm 36 is swung so as to avoid various functional parts provided in the doffing device 14. It becomes possible.

  The automatic winder 10 according to the present embodiment includes the above-described doffing device 14, a plurality of winding units 11 that wind the yarn unwound from the yarn feeding bobbin 15 around the winding bobbin 22 to form a package 18, Is provided. The winding unit 11 captures the yarn on the yarn feeding bobbin 15 and stands by at the yarn delivery position, and a second guide 72 that positions the yarn catcher 41 in the vicinity of the yarn delivery position. .

  Thus, by positioning the yarn catching portion 41 at the yarn delivery position, the yarn 16 captured by the lower yarn guide pipe 29 can be reliably received by the yarn catching portion 41.

  In the textile machine, a third guide that engages with the second guide is disposed in the yarn catching portion 41.

  As described above, by providing the third guide 73 in the vicinity of the yarn catching portion 41 and engaging the two guides, the yarn catching portion 41 can be reliably positioned.

  Moreover, in the automatic winder 10 of this embodiment, the 3rd guide 73 is provided with a convex part. The second guide 72 includes a groove part 77 that fits into the convex part, and a V-shaped groove 79 that guides the convex part to the groove part 77.

  By adopting a configuration in which the convex portion is guided by the V-shaped groove 79, the convex portion and the concave portion can be fitted even if the yarn catching portion 41 and the yarn drawing arm 36 are slightly misaligned. Therefore, the yarn catcher 41 can be reliably positioned.

  Further, in the automatic winder 10 of the present embodiment, the winding unit 11 includes a yarn joining device 26 that joins the yarn divided between the yarn feeding bobbin 15 and the winding bobbin 22. The lower thread guide pipe 29 also has a function of capturing the separated yarn end on the yarn feeding bobbin 15 side and guiding it to the yarn joining device 26. The second guide 72 is provided on the side of the yarn joining device 26.

  In this way, the lower thread guide pipe 29 can serve as both the lower thread guide when doffing and the lower thread guide when splicing, so that the configuration of the winding unit 11 can be simplified. Further, since the second guide 72 is arranged on the side of the yarn joining device 26, the second guide 72 does not get in the way during normal winding operation.

  Further, in the automatic winder 10 of the present embodiment, the thread drawing arm 36 is configured to be extendable and contractible.

  As a result, when the yarn catching portion 41 catches the yarn, the yarn withdrawal arm 36 can be extended, and when the yarn catching portion 41 is not operated, the yarn withdrawal arm 36 can be retracted and stored compactly. it can. In addition, if an excessive force is applied to the yarn pull-out arm 36 configured to be extendable and contractable in this manner, the yarn pull-out arm 36 may be damaged. In this regard, according to the configuration of the present invention, since the yarn pull-out arm 36 is supported by the support portion 46 that can swing in an arbitrary direction, the yarn pull-out arm 36 swings the force applied to the yarn pull-out arm 36. You can escape by doing. Thereby, the durability of the thread drawing arm 36 is improved.

  Further, in the automatic winder 10 of the present embodiment, the thread drawing arm 36 is configured to be telescopic and extendable by a plurality of rod-shaped members having different diameters. The thread catcher 41 is provided on the thinnest rod-shaped member 36a among the plurality of rod-shaped members. The thickest rod-shaped member 36 b among the plurality of rod-shaped members is attached to the main body frame 35 via the support portion 46. The first guide 71 restricts the movement of the thickest rod-shaped member 36b.

  That is, since the root portion of the yarn pull-out arm 36 is guided by the first guide 71, the swing of the yarn pull-out arm 36 can be regulated by the compact first guide 71.

  Further, in the automatic winder 10 of the present embodiment, the doffing device 14 includes a fourth guide 74 that defines the standby position of the yarn drawing arm 36. The fourth guide 74 restricts the movement of the thickest rod-shaped member 36b.

  By providing the fourth guide 74 in this way, the yarn drawing arm 36 can be positioned at the standby position. Further, since the thickest rod-shaped member 36b is guided by the fourth guide 74, the yarn pull-out arm 36 can be freely expanded and contracted while the yarn pull-out arm 36 is guided by the fourth guide 74. . Accordingly, since the position of the yarn catching portion 41 when the yarn drawing arm 36 is extended can be accurately positioned, the yarn catching of the yarn feeding bobbin 15 by the yarn catching portion 41 can be more accurately performed. .

  Further, in the automatic winder 10 of the present embodiment, the first sliding member 80 for reducing the frictional resistance is attached to the thickest rod-shaped member. The first guide 71 guides the thickest rod-shaped member 36 b through the first sliding member 80.

  The sliding member can prevent breakage due to rubbing.

  In the automatic winder 10 of the present embodiment, the third guide 73 is attached with a second sliding member 78 for reducing the frictional resistance, and the second guide 72 and the third guide 73 are the second sliding member. Engage via 78.

  The sliding member can smoothly match and remove the concave portion and the convex portion.

  In the automatic winder 10 of the present embodiment, the first guide 71 is a U-shaped member formed by bending a long plate member, and the central portion of the long plate member is attached to the main body frame 35.

  Thereby, the first guide 71 can be configured with a simple structure.

  The preferred embodiment of the present invention has been described above, but the above configuration can be modified as follows, for example.

  The shapes of the first guide 71, the second guide 72, the third guide 73, and the fourth guide 74 are not limited to those shown in the drawings, and any appropriate shape can be adopted as long as the shape can appropriately guide the thread drawing arm 36. be able to. Further, the configuration of the support portion 46 is not limited to the configuration described in the above embodiment as long as it supports the yarn drawing arm 36 so as to be swingable in an arbitrary direction. Similarly, the configuration of the drive unit is not limited to that described in the above embodiment.

  Although the yarn is delivered to the yarn catching portion 41 by the lower yarn guide pipe 29 provided in the winding unit 11, a member for delivering the yarn to the yarn catching portion 41 (lower yarn catching guide) separately from the lower yarn guide pipe 29. Member) may be provided.

  The first sliding member may be provided on the first guide 71. Further, the second sliding member may be provided on the second guide 72.

  The third guide 73 is not limited to the configuration provided in the yarn catcher 41, and may be disposed at an appropriate location on the yarn catcher 41 side of the yarn pull-out arm 36 (for example, the tip of the thinnest rod-like member 36a). In any case, by providing the third guide 73 in the vicinity of the yarn catching portion 41, the positioning accuracy of the yarn catching portion 41 can be improved.

  Although the thread drawing arm 36 is configured to be telescopically expandable and contractable by a plurality of rod-shaped members having different diameters, the shape of the thread drawing arm 36 is not limited to this. For example, a rectangular tube member can be overlapped to be stretchable, or a plurality of plate members can be stacked and stretched by sliding them.

10 Automatic winder (textile machine)
11 Winding unit 14 Doffing device 18 Package 22 Winding bobbin 36 Thread drawing arm (arm part)
41 Yarn catching section 46 Support section 47 Drive section 71 First guide 72 Second guide 73 Third guide 74 Fourth guide

Claims (11)

A doffing apparatus for doffing a package of a yarn wound from a yarn feeding bobbin around a winding bobbin by a specified amount and performing a threading operation on a new winding bobbin.
Body frame,
An arm,
A yarn catcher attached to the arm portion and catching the yarn of the yarn feeding bobbin;
A support portion for supporting the arm portion so as to be swingable in at least two directions;
A driving unit that applies a driving force to the arm unit to swing the arm unit in a first direction;
A first guide that defines a swing path of the arm portion that is swung in the first direction by the drive unit in a direction different from the first direction;
A doffing apparatus comprising: A doffing apparatus according to claim 1;
A plurality of winding units for winding a yarn unwound from a yarn feeding bobbin onto a winding bobbin to form a package;
A textile machine comprising:
The winding unit is
A lower yarn catching guide member that catches the yarn of the yarn feeding bobbin and stands by at the yarn delivery position;
A second guide for positioning the yarn catcher at the yarn delivery position;
A textile machine comprising: A textile machine according to claim 2,
A textile machine, wherein a third guide that engages with the second guide is disposed on the yarn catching portion side of the arm portion or on the yarn catching portion. A textile machine according to claim 3,
Either one of the second guide and the third guide includes a convex portion,
The other of said 2nd guide and said 3rd guide is provided with the recessed part fitted to the said convex part, and the V-shaped groove which guides the said convex part to the said recessed part, The textile machine characterized by the above-mentioned. A textile machine according to claim 4,
The winding unit includes a yarn joining device that joins the yarn divided between the yarn feeding bobbin and the winding bobbin,
The lower thread catching guide member also serves as a function of catching and guiding the yarn end on the divided yarn supplying bobbin side to the yarn joining device,
The textile machine according to claim 1, wherein the second guide is provided on a side of the yarn joining device. It is a textile machine as described in any one of Claim 2-5, Comprising: The said arm part is comprised so that expansion-contraction is possible, The textile machine characterized by the above-mentioned. A textile machine according to claim 6,
The arm portion is configured to be telescopic and extendable by a plurality of rod-shaped members having different diameters,
The thread catching portion is provided on the thinnest bar-shaped member among the plurality of bar-shaped members,
The thickest rod-shaped member among the plurality of rod-shaped members is attached to the main body frame via the support portion,
The textile machine according to claim 1, wherein the first guide regulates movement of the thickest bar-shaped member. A textile machine according to claim 7,
The doffing device includes a fourth guide that defines a standby position of the arm portion,
The textile machine according to claim 4, wherein the fourth guide regulates movement of the thickest bar-shaped member. A textile machine according to claim 8,
At least one of the thickest bar-shaped member and the first guide is attached with a first sliding member that reduces frictional resistance,
The textile machine according to claim 1, wherein the first guide guides the thickest bar-shaped member through the first sliding member. A textile machine according to any one of claims 3 to 5,
A second sliding member for reducing frictional resistance is attached to at least one of the second guide and the third guide,
The textile machine according to claim 1, wherein the second guide and the third guide are engaged via the second sliding member. A textile machine according to claim 10,
The first guide is a U-shaped member formed by bending a long plate member,
A textile machine, wherein a central portion of the long plate member is attached to the main body frame.

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