WO2019012852A1

WO2019012852A1 - Yarn-winding device

Info

Publication number: WO2019012852A1
Application number: PCT/JP2018/021187
Authority: WO
Inventors: 平尾　修; 正井　哲司
Original assignee: 村田機械株式会社
Priority date: 2017-07-12
Filing date: 2018-06-01
Publication date: 2019-01-17
Also published as: JP2019018934A

Abstract

The present invention prevents fibre waste generated when winding yarn in a winding unit from being dispersed to the surroundings. In a winding unit (13), a cradle (14) and a package (P) held by the same are covered by a cover (50). The cover (50) is open at the lower end thereof and comprises: an upper wall (51) positioned above the cradle (14) and the package (P); and a side wall (52) completely surrounding the cradle (14) and the package (P) when seen from above. A suction opening (52e) is formed in the rear end of the side wall (52). The suction opening (52e) is coupled, by means of a flexible coupling pipe (54), to a suction duct (40) coupled to a suction source. In addition, the cover (50) can pivot about projections (52d), which are formed on respective protrusions (52c) extending downwards from the lower end of the rear end of the side wall (52), between a covered position in which the cradle (14) and the package (P) are covered and a retreated position higher than the covered position.

Description

Yarn winding device

The present invention relates to a yarn winding device for winding yarn.

In the automatic winder described in Patent Document 1, in each winder unit, the yarn supplied from the yarn supplying unit is wound around a winding bobbin in a winding unit to form a package. In the take-up unit, while the surface of the package supported by the cradle is in contact with the vibrating drum, the package and the vibrating drum are rotated to traverse the yarn along the groove formed in the vibrating drum. While doing this, take up the thread on the bobbin.

JP, 2017-65897, A

Here, in the automatic winder as disclosed in Patent Document 1, when the package and the traverse drum rotate in a state where the yarn on the surface of the package is in contact with the traverse drum in the winding unit, the yarn and the staple on the package surface Textile waste is generated due to friction with the vibrating drum. Then, the generated fiber waste is scattered in all directions, leading to the contamination of the space where the automatic winder is installed.

An object of the present invention is to provide a yarn winding device capable of preventing scattering of fiber waste.

A yarn winding device according to the present invention includes a yarn supplying unit capable of supplying a yarn, a winding unit which winds up a yarn supplied from the yarn supplying unit to form a package, and a cover which covers the package of the winding unit. And a suction device for suctioning the inside of the cover at least during winding of the yarn by the winding unit.

According to the present invention, since the winding unit is covered by the cover, fiber waste generated during winding by the winding unit is accumulated in the cover. This makes it possible to prevent fiber debris from scattering around. In addition, by sucking the inside of the cover with the suction device at least during the winding by the winding unit, it is possible to recover the fiber waste accumulated in the cover.

Further, in the yarn winding device of the present invention, the winding unit is positioned above the yarn feeding unit, and the cover is open at the lower side.

According to the present invention, the lower side of the cover is opened while the yarn is supplied to the winding portion from the lower side, so that the cover does not interfere with the yarn supplied from the lower side. it can.

Further, in the yarn winding device according to the present invention, the cover is connected to an upper wall portion positioned above the package and the upper wall portion in a state of covering the package, and covers the package. And a side wall portion disposed to surround the entire circumference of the package as viewed from above and below in the state.

According to the present invention, the upper wall portion covers the upper side of the package, and the side wall portion covers the package viewed from above and below. Thereby, scattering of fiber waste can be effectively prevented.

In the yarn winding device according to the present invention, the winding unit further includes a cradle for supporting the package in a posture parallel to a first direction in which the axial direction intersects the vertical direction, and the side wall portion The cover extends below the axis of the package supported by the cradle, with the cover covering the package.

According to the present invention, the whole or substantially the whole of the package is covered with the cover, and the scattering of fiber waste can be effectively prevented.

Further, in the yarn winding device according to the present invention, a yarn joining unit disposed between the yarn supplying unit and the winding unit and joining the yarn on the yarn supplying unit side and the yarn on the winding unit side; And a yarn catching and guiding member for catching the yarn end of the yarn of the package and passing it to the yarn joining portion, and the cover is disposed at a position not to interfere with the yarn catching and guiding member.

According to the present invention, it is possible to prevent the cover from getting in the way of the yarn catching and guiding member while preventing the scattering of the fiber debris with the cover.

Further, in the yarn winding device according to the present invention, the cover is configured to be movable between a cover position covering the package of the winding unit and a retracted position away from the winding unit, and the yarn catching guide The member is configured to be movable between a capture position when capturing the yarn end of the yarn of the package and a yarn transfer position when transferring the yarn to the yarn joining portion, the cover being the cover position and the cover position. A first moving device for moving between the retracted position, a second moving device for moving the yarn catching and guiding member between the catching position and the yarn passing position, and the first moving device and the second moving device. And a control device for controlling the moving device, wherein the control device controls the first moving device to position the cover at the cover position when the winding unit causes the yarn to be wound. And the yarn joining section performs yarn joining At the same time, the control unit controls the first moving device and the second moving device so that the cover is separated from the cover position before the yarn catching and guiding member reaches the catching position. The yarn capture and guide member is moved from the position to the retracted position to move the yarn capture and guide member to the capture position.

According to the present invention, by positioning the cover at the cover position at the time of winding, it is possible to prevent the fiber debris generated at the time of winding from scattering around. On the other hand, when the yarn joining portion is to be subjected to the yarn joining, the cover is moved from the cover position to the retracted position so that the cover is separated from the cover position before the yarn acquisition guide member reaches the acquisition position. By moving to the catching position, the cover and the yarn catching and guiding member can be prevented from interfering with each other. In addition, since the fiber debris in the cover is collected by sucking the inside of the cover with the suction device, it is prevented that the fiber debris in the cover is scattered around when the cover is moved to the retracted position. can do.

Further, in the yarn winding device according to the present invention, when the control device causes the yarn joining portion to perform yarn joining, the control device controls the first moving device and the second moving device to place the cover in the retracted position. After being moved, the yarn catching and guiding member is moved to the catching position.

According to the present invention, by positioning the cover in the retracted position and then moving the thread catching and guiding member to the catching position, the thread catching and guiding member can be prevented from interfering with the cover.

In the yarn winding device according to the present invention, the winding unit is positioned above the yarn supplying unit and the yarn joining unit, the cover is open at the lower side, and the retracted position is the cover position. It is a position higher than it.

According to the present invention, the lower end of the cover is open, while the retracted position is above the cover position. Therefore, when the cover is moved between the cover position and the retracted position, the cover Can be prevented from interfering with the yarn.

Further, in the yarn winding device of the present invention, the winding unit supports the package in a posture parallel to a first direction in which the axial direction intersects the vertical direction, and the cradle extends along the first direction. A take-up drum extending from the lower side and coming into contact with the package supported by the cradle from below, the cradle being pivotable about a first axis extending in a direction along the first direction By supporting the package on and off the winding drum, and the cover is pivotably supported on a second shaft extending in a direction along the first direction. It is configured to be movable between the cover position and the retracted position.

According to the present invention, the structure of the device can be simplified by making the cradle and the cover pivotable about an axis along the first direction.

Further, in the yarn winding device according to the present invention, the first shaft is positioned on one side with respect to the rotation shaft of the winding drum in a second direction perpendicular to both the vertical direction and the first direction. The two axes are located closer to the one side than the first axis.

According to the present invention, the cradle swings about the first shaft separated from the rotating shaft of the take-up drum on one side in the second direction, while the cover further takes up the take-up drum more than the first shaft. If the cradle and the cover are rocked with a simple structure, they do not interfere with each other by pivoting the second shaft away from the rotary shaft in one direction in the second direction. Can.

Further, in the yarn winding device of the present invention, the suction device has a suction portion including a suction source, and a flexible connection member for connecting the suction portion and the cover, and the connection member Is connected to the one end of the cover in the second direction, and the second axis is located at the one end of the cover in the second direction.

When the cover moves, the distance between the connecting portion of the suction portion with the connecting member and the connecting portion of the cover with the connecting member fluctuates. Therefore, the connecting member needs to have an allowance in length so as to be able to cope with the variation of the distance. At this time, when the cover is moved between the cover position and the retracted position, the larger the amount of movement of the connection portion of the cover with the connection member, the larger the margin for the length of the connection member needs to be. The length of the member is increased.

In the present invention, the cover is positioned by connecting the connecting member to the one end of the cover in the second direction and supporting the second axis on the one end of the cover in the second direction. The movement amount of the connection portion of the cover with the connection member can be reduced when moving between the second position and the retracted position. Thereby, the length of the connection member can be shortened as much as possible.

Further, in the yarn winding device according to the present invention, the second shaft is positioned lower than a connecting portion with the connection member in the one end of the cover in the second direction.

Unlike the present invention, when the second axis is positioned above the connecting portion of the cover with the connecting member, the cover is pivoted from the cover position to the retracted position above the cover. The connecting portion with the connecting member moves in the direction in which the connecting member is pulled. Therefore, in this case, it is necessary to make the length of the connecting member longer than the length required to connect the cover and the suction duct when the cover is in the cover position.

On the other hand, in the present invention, since the second shaft supports a portion of the cover below the connecting portion with the connecting member, when the cover is swung from the cover position to the retracted position The connecting portion of the cover with the connecting member moves in a direction in which the connecting member is contracted. Thereby, the length of the connecting member can be made the length necessary to connect the cover and the suction duct in the state where the cover is at the cover position, and the length of the connecting member can be shortened as much as possible.

Further, in the yarn winding device according to the present invention, the winding unit has a cradle for supporting the package in a posture parallel to a first direction in which the axial direction intersects the vertical direction, and the winding unit And a discharge path for discharging the package formed in the second direction in the second direction orthogonal to both the vertical direction and the first direction, and the cover is provided on the one side in the second direction. A package outlet formed at an end portion for guiding a package transported to the discharge path to the outside of the cover, and an opening and closing member opening and closing the package outlet.

According to the present invention, in the state in which the package outlet is open, the package transported through the discharge path is discharged out of the cover without interfering with the cover. In addition, if the package outlet is closed by the opening / closing member, the fiber waste in the package is less likely to scatter to the outside of the cover.

Further, in the yarn winding device according to the present invention, the opening and closing member is supported so as to be swingable about a third axis orthogonal to the second direction.

According to the present invention, the opening and closing member can be made simple.

Further, in the yarn winding device of the present invention, the winding unit has a cradle for supporting the package, and the cover covers the package together with the cradle.

According to the present invention, by making the cover cover the package together with the cradle, the structure of the cover can be simplified.

In the yarn winding device of the present invention, the cover is at least partially transparent or translucent.

According to the present invention, the state of the package can be confirmed through the cover.

It is a schematic block diagram of the automatic winder concerning an embodiment of the invention. It is a schematic block diagram of the winding unit of FIG. It is the figure which looked at the upper part of the winding unit from the left side. (A) is an enlarged view of a winding part of Drawing 2, and (b) is a figure of a winding part corresponding to (a) when it sees from the back side. It is a block diagram which shows the electric constitution of an automatic winder. It is a flowchart which shows the flow of control at the time of yarn joining. It is a figure corresponding to FIG. 3 for demonstrating the state which has caught the thread end of the thread | yarn by the side of a winding-up part by the thread | yarn capture | acquisition guide member. It is a flowchart which shows the flow of a process when replacing the winding tube hold | gripped by the cradle. FIG. 14 is a view corresponding to FIG. 3 for explaining the delivery of the cover to the outside of the full-wound package removed from the cradle. It is a figure equivalent to FIG. 3 of the modification 1. FIG. It is a figure equivalent to Fig.4 (a) of the modification 1. FIG. It is a figure equivalent to FIG. 3 of the modification 2. FIG. (A) is a figure equivalent to Fig.4 (a) of modification 2, and (b) is a figure which shows the state by which the opening part was open | released. FIG. 13 is a view corresponding to FIG. 12 showing a state in which the opening is opened in Modification 2;

Hereinafter, preferred embodiments of the present invention will be described.

<Automatic winder>
As shown in FIG. 1, the automatic winder 1 includes a plurality of winding units 2 arranged in one direction (the “yarn winding device” of the present invention), and the arrangement direction along the plurality of winding units 2. And a machine control device 4 for controlling the entire automatic winder 1. In the following description, the left and right direction in FIG. 1 in which a plurality of winding units 2 are arranged is referred to as “left and right direction”, the right side in FIG. 1 is referred to as “right side”, and the left side in FIG. Furthermore, in the following description, the vertical direction in the drawing of FIG. 1 is referred to as the front-rear direction (the “second direction” of the present invention), and the front side in the vertical direction of FIG. Do.

The automatic winder 1 sends a signal from the machine control device 4 to the unit control device 100 (see FIG. 5) individually provided for each winding unit 2, and in each winding unit 2, the yarn feeding bobbin B Are wound around a winding tube Q to form a package P. Further, when a full package P is formed in a certain winding unit 2, a signal is sent from the machine control device 4 to the doffing control device 99 provided for the doffing device 3, and the doffing device 3 is Is moved to a position facing the winding unit 2 to cause the doffing device 3 to exchange the winding tube Q. Further, the machine control device 4 controls the operation of the unit control device 100 (see FIG. 5) of each winding unit 2 and the descent control device 99, and monitors the operation state of the entire automatic winder 1 and operation parameters. Setting, storage, etc.

Next, the detailed configuration of each winding unit 2 will be described. The winding unit 2 forms a package P by winding around the winding tube Q while traversing the yarn Y unwound from the yarn feeding bobbin B.

As shown in FIG. 2, the winding unit 2 is unwound from the yarn supplying unit 11 which holds the yarn Y of the yarn supplying bobbin B in a state in which the yarn Y can be supplied, and the yarn supplying bobbin B held by the yarn supplying unit 11. The yarn processing unit 12 performs various processes on the yarn Y, and the winding unit 13 that winds the yarn Y processed by the yarn processing unit 12 around a winding tube Q to form a package P. The yarn supplying unit 11, the yarn processing unit 12, and the winding unit 13 are arranged in this order from the bottom to the top.

The yarn supplying unit 11 has a bobbin holding unit 15 for holding the yarn supplying bobbin B, and an unwinding assisting device 16 for assisting the unwinding of the yarn Y from the yarn supplying bobbin B. The unwinding assisting device 16 has a cylindrical body 29 which is placed on the yarn feeding bobbin B from above. The cylinder 29 is moved up and down by a cylinder drive motor 101 (see FIG. 5). The unwinding assisting device 16 regulates the expansion (balloon) of the yarn Y during unwinding by lowering the cylindrical body 29 by the cylinder drive motor 101 (see FIG. 5) as the unwinding of the yarn Y proceeds. And stabilize the tension of the yarn Y.

The winding unit 13 includes a cradle 14 and a traverse drum 18. The cradle 14 rotatably grips both axial end portions of the winding tube Q. Here, in the cradle 14, the gripping portion 14a gripping the right end portion of the winding tube Q is biased toward the gripping portion 14b gripping the left end portion of the winding tube Q by a spring (not shown). The winding tube Q is gripped. In the present embodiment, the axial direction of the winding tube Q in a state of being held by the cradle 14 corresponds to the “first direction” in the present invention. Further, the axial direction of the winding tube Q at this time is a direction slightly inclined in the vertical direction with respect to the lateral direction.

Further, the grip release lever 17 is attached to the cradle 14. The grip release lever 17 is connected at its midway portion to the grip portion 14a of the cradle 14, and at its base end, can be pivoted about a vertically extending shaft 17a.

Here, the doffing device 3 includes a lever operation portion 91 (see FIG. 5) for operating the grip release lever 17 and a winding tube supply portion 92 for supplying the empty winding tube Q to the cradle 14. Have. Then, in the winding unit 13, when the fully wound package P is completed, the grip releasing lever 17 is moved by the lever operating unit 91 of the lifting device 3 so that the tip thereof moves from left to right Operated. Then, the gripping portion 14a is separated from the gripping portion 14b against the biasing force of the spring, and the take-up tube Q (the fully wound package P) is detached from the cradle 14.

The automatic winder 1 is provided with a belt conveyor (not shown) extending in the left-right direction across the plurality of winding units 2 behind the plurality of winding units 2 for conveying the package P. The full package P removed from the cradle 14 rolls along the discharge path 10 disposed between the winding unit 13 and the belt conveyor in the front-rear direction to the belt conveyor, and is then conveyed by the belt conveyor. Ru.

Further, after the package P is removed from the cradle 14 and the grip release lever 17 is operated by the lever operation unit 91, an empty winding tube Q is supplied to the cradle 14 by the winding tube supply unit 92, and The above operation of the grip release lever 17 is released. Thereby, a new take-up tube Q is attached to the cradle 14, and the yarn Y is taken up around the take-up tube Q. Further, the cradle 14 has its base end portion pivotally supported by a shaft 14 c extending in the left-right direction (the “direction along the first direction” in the present invention). The shaft 14 c is located rearward (one side in the first direction) and below the axis of the winding tube Q gripped by the cradle 14. The cradle 14 can be rocked about the shaft 14c by the cradle motor 102 (see FIG. 5). In the present embodiment, the axis of the shaft 14c corresponds to the "first axis" in the present invention.

The traverse drum 18 is rotationally driven by a drum motor 103 (see FIG. 5). Further, a spiral traverse groove 18a is formed on the outer peripheral surface of the traverse drum 18, and the traverse groove 18a is configured to traverse the yarn Y. Then, the traverse drum 18 rotates in a state of being in contact with the package P formed on the take-up tube Q while traversing the yarn Y by the traverse groove 18a, whereby the package is produced by the contact friction with the traverse drum 18. P rotates in the winding direction, and the yarn Y unwound from the yarn supplying bobbin B is wound around the winding tube Q.

In addition, the winding unit 13 is provided with a cover 50 that covers the package P held by the cradle 14. Then, in the winding unit 13, the cover 50 prevents the fiber debris generated during winding and the like from being scattered around. The cover 50 will be described in detail later.

The yarn processing unit 12 disposed between the yarn supplying unit 11 and the winding unit 13 includes a yarn feeler 19, a tension applying device 20, a yarn joining device 21, and a yarn clearer 22.

The yarn feeler 19 is disposed between the unwinding assisting device 16 and the tension applying device 20, and detects the presence or absence of the traveling yarn Y.

The tension applying device 20 applies a predetermined tension to the traveling yarn Y. In FIG. 2, a so-called gate-type tension applying device 20 is shown as an example. In the gate type tension applying device 20, a plurality of fixed gate bodies 20a and a plurality of movable gate bodies 20b are alternately arranged in the vertical direction. Then, by adjusting the horizontal position of the plurality of movable gate bodies 20b, tension is applied to the yarn Y traveling between the fixed gate body 20a and the movable gate body 20b.

The yarn joining device 21 is fed when a yarn defect is detected by the yarn clearer 22 described later and the yarn Y is cut by the cutter 22a, or the yarn is broken during package winding or the yarn of the yarn supplying bobbin B is lost. When the yarn feeler 19 does not detect the yarn Y, for example, when replacing the yarn bobbin B, the yarn Y1 on the yarn supplying unit 11 side and the yarn Y2 on the winding unit 13 side are spliced. .

A yarn catching and guiding member 23 for catching the yarn Y1 on the yarn feeding unit 11 side and guiding it to the yarn joining device 21 and a yarn Y2 on the winding unit 13 side are caught on the lower side and the upper side of the yarn joining device 21. A yarn catching and guiding member 24 for guiding the yarn joining device 21 is provided. The yarn catching and guiding member 23 is rotatable about a shaft 23a, and pivots up and down by being rotationally driven by a pivoting motor 104 (see FIG. 5). The yarn capturing and guiding member 24 is configured to be rotatable about the shaft 24a, and is pivoted up and down by being rotationally driven by a pivoting motor 105 (see FIG. 5, the “second moving device” of the present invention). Further, as shown in FIG. 3, the yarn catching and guiding

members

23 and 24 are each connected to a suction duct 40 connected to a suction source (not shown).

The yarn catching and guiding member 23 has a suction portion 23b at its tip end for sucking and catching the yarn end of the yarn Y1 on the yarn feeding portion 11 side. In the lower position, the yarn catching and guiding member 23 catches the yarn end of the yarn Y1 with the suction portion 23b. Then, in a state where the yarn end of the yarn Y1 is caught by the suction portion 23b, the yarn catching and guiding member 23 is turned upward to move the suction portion 23b to a position above the yarn joining device 21. The Y1 is guided to the yarn joining device 21.

The yarn catching and guiding member 24 has a suction nozzle 24b at its tip end for sucking and catching the yarn end of the yarn Y2 on the winding unit 13 side. The yarn catching and guiding member 24 first pivots from the lower side to the upper side to move the suction nozzle 24b to a position in the vicinity of the contact point between the package P and the traverse drum 18 (see "captured position" in FIG. 7). Thus, the yarn end of the yarn Y2 adhering to the surface of the package P is sucked and captured by the suction nozzle 24b. Then, the yarn catching and guiding member 24 turns downward from above while catching the yarn end of the yarn Y2, and the suction nozzle 24b is positioned below the yarn joining device 21 (the “guide position” in the present invention). , The yarn Y2 is guided to the yarn joining device 21.

The yarn joining device 21 connects a yarn end of the yarn Y1 guided by the yarn catching and guiding member 23 and a yarn end of the yarn Y2 guided by the yarn catching and guiding member 24 to one yarn Y. Do. The yarn joining device 21 is a known splicer, knotter or the like.

The yarn clearer 22 constantly acquires information on the thickness of the traveling yarn Y, and on the basis of the information on the thickness of the yarn Y, the yarn Y is defective in an abnormal portion having a thickness larger than a certain level. As detected. Further, a cutter 22a is attached to the yarn clearer 22, and when a yarn defect is detected by the yarn clearer 22, the cutter 22a immediately cuts the yarn Y. When a yarn defect is detected by the yarn clearer 22 and the yarn Y is cut by the cutter 22a, the yarn defect remains in the yarn Y2, but after the yarns Y1 and Y2 are guided to the yarn joining device, the yarn Y1 and the yarn Before the yarn joining with Y2 is performed, the remaining yarn defects are removed when the yarn end of the yarn Y2 is cut by a cutter (not shown) included in the yarn joining device 21.

<Cover>
Next, the cover 50 will be described. As shown in FIGS. 2 to 4, the cover 50 has a space 50 a formed therein, in which the cradle 14 and the package P gripped by the cradle 14 are accommodated, and the lower end is open. In the present embodiment, the winding unit 13 is positioned above the yarn supplying unit 11 and the yarn processing unit 12, and the yarn Y is supplied to the winding unit 13 from below. On the other hand, in the present embodiment, the lower end of the cover 50 is open. Therefore, the cover 50 does not disturb the supply of the yarn Y to the winding unit 13. In addition, in FIG. 3, the cover 50 is shown by the cross section of the center part of the left-right direction for convenience. Further, as described later, the entire cover 50 is transparent or translucent, and the inside of the cover 50 can be visually recognized through the cover 50, but in order to make the drawing easy to see, FIGS. In b), the portion located inside the cover 50 is indicated by a broken line.

The cover 50 has an upper wall 51 which is an upper wall of the space 50a and a side wall 52 which is a side wall of the space 50a. The upper wall portion 51 is located above the cradle 14 and the package P gripped by the cradle 14. More specifically, in the upper wall portion 51, the fully wound package P is gripped by the cradle 14, and the cradle 14 is swung to a position where the package P described later is separated from the vibrating drum 18; It is located above the upper end. As a result, even if the cradle 14 is swung, the package P does not contact the upper wall portion 51. Further, the upper wall portion 51 extends to the outer side than the cradle 14 and the package P gripped thereby in the front-rear direction and the left-right direction.

The side wall portion 52 is disposed so as to surround the cradle 14 and the package P gripped thereby, as viewed from above. Further, the upper end portion of the side wall portion 52 is connected to the edge portion of the upper wall portion 51 over the entire circumference thereof.

Further, an opening 52 a (“package outlet” of the present invention) is formed at the rear end of the side wall 52. The opening 52 a is sized to allow the full-wound package P removed from the cradle 14 to pass therethrough. Further, at the rear end portion of the side wall portion 52, an opening and closing member 53 for opening and closing the opening 52a is provided. The opening and closing member 53 is a substantially rectangular plate-like member, and extends over the entire area of the opening 52a. At upper end portions of both end surfaces of the opening / closing member 53 in the left and right direction, convex portions 53a in a substantially cylindrical shape, which protrude outward in the left and right direction, are formed. The convex portion 53 a is inserted into a substantially circular concave portion 52 b formed at the upper end portion of a portion to be a wall surface in the left-right direction of the opening 52 a of the side wall portion 52. Thus, the opening and closing member 53 can swing around the convex portion 53a. By swinging around the convex portion 53a, the opening 52a can be opened and closed. In the present embodiment, the axis of the convex portion 53a corresponds to the "third axis" in the present invention.

Further, at the rear end portion of the side wall portion 52, projecting portions 52c respectively projecting downward from the lower end are provided at both end portions in the left-right direction. At the lower end portion of each projecting portion 52c, a substantially cylindrical convex portion 52d projecting inward in the left-right direction is formed. The convex portion 52 d is inserted into a substantially circular concave portion 9 a provided on the machine base 9 that supports the cradle 14. Thus, the cover 50 is supported so as to be swingable around the convex portion 52d. Here, the convex portion 52 d is located rearward (one side in the first direction) of the shaft 14 c that swingably supports the cradle 14. In the present embodiment, the axis of the convex portion 52d corresponds to the "second axis" in the present invention.

In addition, the cover 50 is connected to the cover moving device 106 (the “first moving device” in the present invention). The cover moving device 106 is a device that uses, for example, a cylinder, a motor or the like as a driving source. When the cover moving device 106 is driven, the cover 50 rotates around the axis of the convex portion 52 d. Thereby, the cover 14 is shown in FIG. 3 and FIGS. 4 (a) and 4 (b), a cover position for covering the cradle 14 and the package P held by this, and the cradle 14 and this above the cover position. It is movable between a retracted position (see FIG. 7 and FIG. 9) for exposing the package P gripped by the camera. Further, the lower end of the side wall portion 52 described above is located lower than the axis of the package P gripped by the cradle 14 in a state where the cover 50 is located at the cover position.

Further, in the present embodiment, the shaft 14 c serving as the center of swinging of the cradle 14 is positioned rearward of the axis of the take-up tube Q gripped by the cradle 14 and is a convex serving as the center of swinging of the cover 50. The portion 52d is located further rearward than the shaft 14c. Therefore, when the cover 50 is moved from the cover position to the retracted position, the upper wall 51 moves upward and backward away from the package P gripped by the cradle 14. As a result, if the package P held by the cradle 14 does not interfere with the cover 50 in the state where the cover 50 is located at the cover position, the cradle 50 can be positioned even if the cover 50 is positioned at the retracted position. The package P gripped by 14 does not interfere with the cover 50. As described above, in the present embodiment, the shaft 14c is positioned rearward of the axis of the take-up tube Q, and the convex portion 52d is positioned further rearward than the shaft 14c. Interference with the package P can be prevented. Further, since the axial direction of the shaft 14c and the axial direction of the convex portion 52d are the directions along the axial direction of the winding tube Q, the structure of the winding portion 13 can be simplified. .

Further, in the present embodiment, the cover 50 has the lower end opened, whereas the retracted position is a position above the cover position. Therefore, when the cover 50 is moved from the cover position to the retracted position, the cover 50 does not interfere with the yarn Y.

Further, a suction port 52e is formed at a rear end portion of the side wall portion 52 at a portion located above the opening 52a. The suction port 52e is connected to the suction duct 40 via the flexible connection pipe 54 (the "connection member" of the present invention). As a result, during the operation of the winding unit 2, the inside of the cover 50 is always sucked. In the present embodiment, the combination of the suction duct 40 and a suction source (not shown) connected thereto corresponds to the “suction unit” in the present invention.

Here, in the present embodiment, the suction port 52e of the cover 50 to which the connection pipe 54 is connected is located above the convex portion 52d which is the center of swinging of the cover 50. Thus, when the cover 50 moves from the cover position to the retracted position, the suction port 52e moves rearward, but this direction is a direction in which the connection pipe 54 is intended to be contracted. Therefore, the connection pipe 54 does not have to be longer than the length required to connect the suction port 52 e and the suction duct 40 in the state where the cover 50 is in the cover position. The length can be shortened as much as possible.

Further, in the present embodiment, the cover 50 is entirely formed of a transparent or translucent synthetic resin. Thus, even when the cover 50 is located at the cover position and covers the cradle 14 and the package P gripped by the cradle 14, the state of the package P in the cover 50 can be viewed through the cover 50. it can.

<Electric configuration of automatic winder>
Next, the electrical configuration of the automatic winder 1 will be described. As shown in FIG. 5, in the automatic winder 1, a unit control device 100 is provided for each winding unit 2, and the unit control device 100 includes a cylinder drive motor 101, a cradle motor 102, a drum motor 103, The operation of the cutter 22a of the yarn clearer 22, the turning

motors

104 and 105, the yarn joining device 21, the cover moving device 106 and the like is controlled. Further, a signal indicating the detection result of the yarn feeler 19 and the yarn clearer 22 is input to the unit control device 100. In FIG. 5, for the sake of convenience, only the unit control device 100 of one winding unit 2 is shown as a control target etc., and for the other unit control devices 100, illustration of the control target etc. is omitted. doing. Further, in the automatic winder 1, the doffing control device 99 is provided for the doffing device 3, and the doffing control device 99 controls the operations of the lever operation unit 91 and the winding tube supply unit 92. Further, the unit control devices 100 of the plurality of winding units 2 and the lifting control device 99 are connected to the machine control device 4, and the operations are controlled by the machine control device 4.

<Control at yarn joining>
Next, control by the unit control device 100 when causing the yarn joining device 21 to perform yarn joining will be described.

Here, in the winding unit 2, during winding of the yarn Y in the winding unit 13, the cover 50 is positioned at the cover position, as shown in FIG. 3 and FIGS. 4 (a) and 4 (b). It covers the cradle 14 and the package P gripped thereby.

During the winding of the yarn Y in the winding unit 13, fiber waste is generated due to the friction between the yarn Y on the surface of the package P and the vibrating drum 18 or the like. Therefore, unlike the present embodiment, if there is no cover 50, the generated fiber wastes scatter around, leading to deterioration of the environment of the space in which the automatic winder 1 is installed.

On the other hand, in the present embodiment, during the winding of the yarn Y in the winding unit 13, since the cradle 14 and the package P gripped thereby are covered by the cover 50, the generated fiber waste Can be collected in the cover 50 to prevent fiber debris from scattering around.

Further, in the present embodiment, the cover 50 is provided with the upper wall 51 and the side wall 52, and the lower end of the side wall 52 is attached to the cradle 14 with the cover 50 positioned at the cover position. It is located below the axis of the gripped package P. Thereby, almost the entire package P is covered by the cover 50 in the state where the cover 50 is located at the cover position. Thereby, scattering of fiber waste can be effectively prevented.

Here, in view of only preventing the scattering of the fiber wastes, as long as the cover 50 covers the package P, the cradle 14 may not cover it. However, if the cover 50 covers the package P and does not cover the cradle 14, the structure of the cover 50 becomes complicated. In the present embodiment, the cover 50 covers both the package P and the cradle 14 that holds the package P. Thereby, the structure of the cover 50 can be simplified.

Furthermore, in the present embodiment, since the inside of the cover 50 is constantly sucked from the suction port 52e while the winding unit 2 is in operation, the fiber debris accumulated in the cover 50 is removed. As a result, as described later, when the cover 50 is moved to the retracted position or the like, it is possible to prevent the fiber debris collected in the cover 50 from scattering around.

When the yarn joining device 21 performs yarn joining, processing is performed along the flow shown in FIG. More specifically, when the yarn joining device 21 performs yarn joining, first, the unit control device 100 controls the drum motor 103 to stop the rotation of the traverse drum 18 (S101). Subsequently, the unit control device 100 controls the cover moving device 106 to move the cover 50 from the cover position to the retracted position as shown in FIG. 7 (S102). Subsequently, the unit control device 100 controls the

swing motors

104 and 105 to cause the yarn catching and guiding

members

23 and 24 to catch the yarn Y1 on the yarn supplying unit 11 side and the yarn Y2 on the winding unit 13 side, respectively. , And guides the yarn joining device 21 (S103).

At this time, as shown in FIG. 7, the yarn catching and guiding member 24 is pivoted upward to move the suction nozzle 24b to the catching position between the package P and the traverse drum 18, but as described above Since the cover 50 is moved from the cover position to the retracted position before the capture and guide member 24 is pivoted upward, interference of the thread capture and guide member 24 with the cover 50 can be prevented. Further, at this time, the movement of the cover 50 to the retracted position is not limited to the start of the pivoting operation to the upper side (capture position) of the thread capture and guide member 24. If the cover 50 is separated from the retracted position before the yarn capture and guide member 24 reaches the capture position, the cover 50 is moved upward (capture position) before the movement of the cover 50 to the retracted position is completed. The pivoting motion of may be started. Even in this case, the cover 50 and the yarn catching and guiding member 24 can be prevented from interfering with each other.

After that, the unit control device 100 causes the yarn joining device 21 to perform yarn joining (S104), and after completion of yarn joining, controls the cover moving device 106 to return the cover 50 from the retracted position to the cover position. After that (S105), the drum motor 103 is controlled to rotate the traverse drum 18, whereby the winding in the winding unit 13 is resumed (S106).

<Control when replacing the winding tube>
Next, when the fully wound package P is completed, the fully wound package P (take-up tube Q) is removed from the cradle 14 and an empty take-up tube Q is attached to the cradle 14 (replacement of the take-up tube Q) Control by the unit control device 100 and the ball lifting control device 99 when the When replacing the winding tube Q, the process is performed according to the flow shown in FIG.

More specifically, when the fully wound package P is completed, the unit control device 100 controls the drum motor 103 to stop the rotation of the traverse drum 18 (S201), and controls the cradle motor 102. By pivoting the cradle 14 in the counterclockwise direction in FIG. 7, the package P is raised and separated from the oscillating drum 18 (S202).

Subsequently, the unit control device 100 controls the cover moving device 106 to move the cover 50 from the cover position to the retracted position (S203). Subsequently, the doffing control device 99 moves the doffing device 3 to a position facing the winding unit 2 in which the full-wound package P is completed, and then operates the grip release lever 17 to the lever operation unit 91. Then, the fully wound package P is removed from the cradle 14 (S204). As shown in FIG. 9, the package P detached from the cradle 14 opens the opening 52a by swinging the opening / closing member 53 by its own weight, and is drawn out of the cover 50 through the opening 52a. Ru. The package P drawn out of the cover 50 rolls along the discharge path 10 to the belt conveyor as described above.

Subsequently, the lifting control device 99 controls the lever operation unit 91 and the winding tube supply unit 92 to attach an empty winding tube Q to the cradle 14 (S205). More specifically, as described above, in a state where the grip release lever 17 is scanned by the lever operation unit 91, the take-up tube supply unit 92 causes the empty take-up tube Q to be supplied to the cradle 14, and thereafter The control unit 91 causes the lever operation unit 91 to release the operation of the grip release lever 17. Thereafter, the unit controller 100 controls the cradle motor 102 to swing the cradle 14 clockwise in FIG. 7 to lower the take-up tube Q and bring it into contact with the traverse drum 18 (S206). . Further, the cover moving device 106 is controlled to return the cover 50 from the retracted position to the cover position (S207). Then, the drum motor 103 is rotationally driven to rotate the vibrating drum 18, whereby the winding of the yarn Y onto the empty winding tube Q is started (S208).

As mentioned above, although embodiment of this invention was described, this invention is not limited to the said embodiment, either, A various change is possible in the range described in the claim.

In the above embodiment, after the cover 50 is moved from the cover position to the retracted position, the thread catching and guiding member 24 is prevented from interfering with the cover 50 by pivoting the thread catching and guiding member 24 upward. Not limited to this.

In the first modification, as shown in FIGS. 10 and 11, a notch 151 extending in the left-right direction is formed at the lower end of the front end of the side wall 52. In the first modification, the yarn catching and guiding member 24 is pivoted upward as shown by an alternate long and short dash line in FIG. 10 while the cover 50 is positioned at the cover position at the time of yarn joining and the catching position from the yarn passing position Move to At this time, the tip end portion of the yarn catching and guiding member 24 including the suction nozzle 24 b enters the cover 50 through the notch 151. That is, in the first modification, the cover 50 is disposed so as not to interfere with the yarn catching and guiding member 24 by forming the notch 151 in the cover 50.

In the first modification, as described above, since it is not necessary to move the cover 50 between the cover position and the retracted position at the time of yarn joining, the time until the winding unit 13 resumes winding is shortened. can do.

Further, in the first modification, as in the above-described embodiment, the cover 50 needs to be moved when replacing the winding tube Q to be held by the cradle 14. However, in the first modification, as described above, since it is not necessary to move the cover 50 at the time of yarn joining, the frequency of moving the cover 50 is less than in the above embodiment, and the life of the cover moving device 106 is reduced. It can be long.

However, in the case of the first modification, since the fiber waste in the cover 50 may scatter from the notch 151 to the outside of the cover 50, the scattering prevention effect of the fiber waste is improved as compared with the above embodiment. It becomes smaller.

In the above-described embodiment and the first modification, the yarn catching and guiding member 24 is pivoted up and down to move between the catching position and the guiding position. However, the present invention is not limited to this. For example, the yarn catching and guiding member for catching and guiding the yarn end of the yarn Y2 on the winding unit 13 side to the yarn joining device 21 may be fixed in position. In this case, for example, a notch or the like may be formed in the cover 50 for passing the tip end of the yarn catching and guiding member on the winding portion 13 side. Further, in this case, since the yarn catching and guiding member does not move, the gap between the notch formed in the cover 50 and the outlet nozzle may be filled to make it difficult to scatter fiber debris from this gap. .

Further, in the above-described embodiment, the side wall portion 52 extends below the axis of the winding tube Q gripped by the cradle 14 with the cover 50 positioned at the cover position. It is not limited. When the cover 50 is in the cover position, the lower end of the side wall 52 may be located at the same height as the axis of the winding tube Q gripped by the cradle 14 or above it. . At this time, if the lower end of the side wall portion 52 in the state where the cover 50 is located at the cover position is at a position above the upper end of the thread catching and guiding member 24 in the state being located at the catching position Even if the cover 50 is not moved from the cover position to the retracted position, the thread catching and guiding member 24 does not interfere with the cover 50. However, as the lower end of the side wall portion 52 is positioned upward, the scattering prevention effect of the fiber debris by the cover 50 becomes smaller.

Further, in the above embodiment, the cover 50 has the upper wall 51 covering the upper part of the cradle 14 and the package P, and the side wall 52 covering the entire circumference viewed from the upper side. Although it covered almost the whole, it is not restricted to this. The cover may cover only a portion of the cradle 14 and the package P.

Moreover, in the above-mentioned embodiment, although the lower end of the cover 50 was opening, it is not restricted to this. The cover may be open at portions other than the lower end. However, in this case, a yarn guide or the like for guiding the yarn Y sent from the lower yarn processing unit 12 to the winding unit 13 through the opening is required.

Further, the opening and closing member for opening and closing the opening 52a of the cover 50 is not limited to the opening and closing member 53 of the above-described embodiment.

In the second modification, as shown in FIGS. 12 and 13A, two opening and

closing members

161a and 161b are provided in the opening 52a. The opening and

closing members

161a and 161b are each a substantially rectangular plate-like member having a length in the left-right direction which is about half that of the opening 52a. Further, on the upper and lower surfaces of the left end of the left opening and closing member 161a, a substantially cylindrical convex portion 162a protruding in the vertical direction is formed. Each convex portion 162 a is inserted into a substantially circular concave portion 163 a formed on the upper and lower walls of the opening 52 a of the side wall 52. Thus, the opening and closing member 161a can swing around the convex portion 162a. The right open / close member 161b has a substantially cylindrical convex portion 162b protruding in the vertical direction on the upper surface and the lower surface of the right end thereof. Each protrusion 162 b is inserted into a substantially circular recess 163 b formed on the upper and lower walls of the opening 52 a of the side wall 52. Due to this, the opening and closing member 161b can swing around the convex portion 162b. In the second modification, the axes of the

convex portions

162a and 162b correspond to the "third axis" in the present invention.

Then, in this case, when the fully wound package P is removed from the cradle 14, as shown in FIG. 13 (b) and FIG. 14, the package P has the opening and

closing members

161a and 161b by its own weight. The opening 52a is opened by swinging around the

projections

162a and 162b, and the opening 52a is moved to the outside of the cover 50 through the opening 52a.

Further, in the second modification, the two opening and

closing members

161a and 161b are provided in the opening 52a, but instead of the two opening and

closing members

161a and 161b, similarly to the opening and closing member 161a, the convex portion 162a is centered And one opening / closing member whose length in the left-right direction is substantially the same as that of the opening 52a may be provided. Alternatively, as in the case of the opening and closing member 161b, a single opening and closing member may be provided that is swingable about the protrusion 162b and whose length in the left-right direction is substantially the same as that of the opening 52a.

In addition, the opening and closing member is not limited to being swingable about an axis orthogonal to the front-rear direction. For example, an elastically deformable opening / closing member such as a thin plate made of a rubber material is disposed on the cover 50 so as to close the opening 52a, and one end (for example, the upper end) of the opening / closing portion is fixed to the side wall 52 May be In this case, when the fully wound package P is removed from the cradle 14, the package P elastically deforms the opening / closing member by its own weight to open the opening 52a, and the cover is passed through the opening 52a. Move to the outside of 50.

Further, in the above example, the opening and closing member is moved by the weight of the package P to open the opening 52a, but the invention is not limited thereto. For example, a driving device such as a motor for moving the opening and closing member may be provided, and the opening and closing of the opening 52a by the opening and closing member may be performed by the driving device.

Furthermore, the opening and closing member for opening and closing the opening 52a may not be provided, and the opening 52a may be always open. However, in this case, fiber waste may be scattered to the outside of the cover 50 from the opening 52a. However, as compared with the case without the cover 50, there is an effect of preventing the scattering of fiber waste.

The positional relationship between the axis of the take-up tube Q gripped by the cradle 14, the shaft 14c serving as the center of swinging of the cradle 14, and the convex portion 52d serving as the center of swinging of the cover 50 is the above-described embodiment. It is not limited to the form of If the cradle 14 and the package P held by the cradle 14 do not interfere with the cover 50 when the cradle 14 and the cover 50 are swung, they may be in a different positional relationship from the above-described embodiment. . At this time, if the axial direction of the shaft 14c and the axial direction of the convex portion 52d are set as the direction along the axial direction of the winding tube Q, the structure of the winding portion 13 can be simplified. However, either the axial direction of the shaft 14c or the axial direction of the convex portion 52d may be set to a direction largely inclined with respect to the axial direction of the winding tube Q.

Further, in the embodiment described above, the convex portion 52 d which is the center of swinging of the cover 50 is provided on the protruding portion 52 c extending downward from the rear end portion of the side wall portion 52, and the convex portion 52 d is connected to the connection pipe 54. Although it was located under the suction port 52e connected with, it is not restricted to this. For example, the swing center of the cover 50 (the “second axis” in the present invention) is positioned above the lower end of the rear end of the side wall 52, and the suction port 52e is the rear end of the side wall 52 It may be formed in the part located in the same height as the rocking center of cover 50 among the parts, or the part under the side of this.

In this case, when the cover 50 is moved from the cover position to the retracted position, the suction port 52e moves forward. This direction is the direction in which the connection pipe 54 is pulled. Therefore, the connecting pipe 54 may have a length required to connect the suction port 52e and the suction duct 40 (hereinafter referred to as a “reference length”) in a state where the cover 50 is at the cover position. Should be longer than).

Here, when the cover 50 moves, the distance between the connection member of the connection pipe 54 with the suction duct 40 and the suction port 52 e of the cover 50 changes. Therefore, when the length of the connection pipe 54 is made longer than the reference length as described above, the moving amount of the suction port 52e is large when the cover 50 is moved between the cover position and the retracted position. As such, it is necessary to increase the length of the connection pipe 54 to allow a large allowance in the length of the connection pipe 54.

On the other hand, in the above case, since the swing center of the cover 50 and the suction port 52e are both located at the rear end of the side wall 52, the cover 50 has the cover position and the retraction position. The amount of movement of the suction port 52e when it is swung between is small. Thus, the length of the connection pipe 54 can be made as short as possible within the range longer than the reference length.

Further, the suction port 52e is not limited to being formed at the rear end portion of the side wall portion 52. The suction port 52 e may be formed in another portion of the cover 50, such as an end portion in the left-right direction of the side wall portion 52, the upper wall portion 51, and the like.

The swing center of the cover 50 may be located above the lower end of the rear end of the side wall 52 regardless of the position of the suction port 52e. Furthermore, the swing center of the cover 50 may be located on the front side of the rear end of the cover 50.

Moreover, in the above-mentioned embodiment, although the cover 50 is movable between the cover position and the retracted position by swinging around the convex portion 52d, the present invention is not limited thereto. For example, since the cover is movable in parallel in the vertical direction, the cover can be moved between the cover position covering the cradle 14 and the package P gripped thereby and the retracted position above the cover position. It may be

In this case, when the cover is moved from the cover position to the retracted position, the entire cover is positioned upward. Therefore, if the retracted position is at a position sufficiently above the cover position, the cover 50 may not have an opening for passing the fully wound package P.

Further, in the above example, the retracted position is a position above the cover position, but is not limited thereto. For example, the retracted position may be a position shifted from the cover position in the left-right direction.

Moreover, in the above-mentioned embodiment, although the cover 50 covered the cradle 14 and the package P hold | gripped by this, it is not restricted to this. For example, the cradle 14 may be located outside the cover 50.

Further, in the above-described embodiment, the entire cover 50 is transparent or semi-transparent, so that in a state where the cradle 14 and the package P are covered by the cover 50, the operator can Although the state etc. could be visually recognized, it is not restricted to this.

For example, the cover 50 may be partially transparent or translucent. Even in this case, with the cover 50 positioned at the cover position, the state of the package P in the cover 50 can be visually recognized through the portion of the cover 50. Furthermore, the entire cover 50 is neither transparent nor translucent, and when the cover is in the cover position, the state of the package P and the like can not be viewed through the cover 50. It may be

Further, in the above-described embodiment, the inside of the cover 50 is always suctioned from the suction port 52e during the operation of the winding unit 2, but the invention is not limited thereto. Textile waste is mainly generated during winding in the winding unit 13. Therefore, suction from the suction port 52e may be performed at least during winding by the winding unit 13, and suction may not be performed from the suction port 52e at the time of yarn joining or replacement of the winding tube Q. Good. In this case, under the control of the unit control device 100, it may be switched whether or not suction from the suction port 52e is to be performed.

Moreover, in the above-mentioned embodiment, although each winding unit 2 was provided with the cover movement apparatus 106 for moving the cover 50 between a cover position and a retracted position, it is not restricted to this. For example, the doffing device 3 may be provided with a device for moving the cover 50. Furthermore, the automatic winder 1 is not provided with a device for moving the cover 50, and the operator may move the cover 50 manually.

Further, in the above-described embodiment, after moving the cover to the retracted position, the grip release lever 17 is operated by the lever operation unit 91 of the ball lifting device 3 to remove the fully wound package P from the cradle 14. Not limited to this. For example, the cover 50 is provided with a notch for passing the lever operation portion 91, and the lever release portion 17 is operated by the lever operation portion 91 in a state where the cover 50 is positioned at the cover position. Package P may be removed. In this case, after removing the fully wound package P from the cradle 14, the cover 50 is moved to the retracted position, and the empty take-up tube Q is attached to the cradle 14 in the same manner as the above embodiment. .

Moreover, in the above-mentioned embodiment, although the doffing apparatus 3 was provided with the lever operation part 91 for operating the holding release lever 17, it is not restricted to this. For example, instead of providing the lever operating unit 91 in the doffing device 3, the winding unit 13 of each winding unit 2 may be provided with an actuator or the like for operating the grip releasing lever 17. In this case, the doffing device 3 only supplies the winding tube Q by the winding tube supply unit 92. Furthermore, the automatic winder 1 is not provided with a device for scanning the grip release lever 17, and the operator may operate the grip release lever 17 manually.

Moreover, in the above-mentioned embodiment, although the doffing apparatus 3 was provided with the winding tube supply part 92 for supplying the empty winding tube Q to the cradle 14, it is not restricted to this. For example, the operator may manually supply the empty winding tube Q to the cradle 14.

Moreover, although the example which applied this invention to the winding unit of the automatic winder was demonstrated above, it is not restricted to this. The present invention may be applied to another yarn winding device such as a yarn winding device provided with a spinning device. Further, at this time, the yarn winding device is not limited to the one in which the winding unit is positioned above the yarn supplying unit and the yarn joining unit. Furthermore, the yarn winding device may have no yarn joining portion.

DESCRIPTION OF SYMBOLS 2 winding unit 10 discharge path 11 yarn feeding unit 12 yarn joining device 13 winding unit 14 cradle 14 c shaft 18 winding drum 24 b outlet nozzle 40 suction duct 50 cover 51 upper wall 52 side wall 52 a opening 52 d convex 53 opening and closing Member 54 Connection pipe 99 Ball lifting controller 100 Unit controller 105 Swing motor 106 Cover moving device 151

Notch

161a, 161b Opening and closing member

Claims

A yarn supplying section capable of supplying yarn;
A winding unit that winds up the yarn supplied from the yarn supplying unit to form a package;
A cover covering the package of the winding unit;
And a suction device for suctioning the inside of the cover at least during winding of the yarn by the winding section.
The winding unit is located above the yarn feeding unit,
The yarn winding device according to claim 1, wherein the cover is open at the lower side.
The cover is
An upper wall portion positioned above the package in a state of covering the package;
2. The device according to claim 1, further comprising: a side wall portion connected to the upper wall portion and disposed so as to surround the entire periphery of the package viewed from the up and down direction while covering the package. The yarn winding device according to claim 1.
The winding unit includes a cradle configured to support the package in a posture parallel to a first direction in which an axial direction intersects with a vertical direction;
The yarn winding device according to claim 3, wherein the side wall portion extends below the axis of the package supported by the cradle in a state where the cover covers the package.
A yarn joining unit disposed between the yarn supplying unit and the winding unit and joining the yarn on the yarn supplying unit side and the yarn on the winding unit side;
And a yarn catching and guiding member for catching the yarn end of the yarn of the package and passing it to the yarn joining portion;
The yarn winding device according to any one of claims 1 to 4, wherein the cover is disposed at a position not interfering with the yarn catching and guiding member.
The cover is configured to be movable between a cover position covering the package of the winding unit and a retracted position away from the winding unit;
The yarn catching and guiding member is configured to be movable between a catching position when catching the yarn end of the yarn of the package and a yarn passing position when passing the yarn to the yarn joining portion.
A first moving device for moving the cover between the cover position and the retracted position;
A second moving device for moving the yarn catching and guiding member between the catching position and the yarn passing position;
And a control device that controls the first moving device and the second moving device.
The controller is
When winding the yarn by the winding unit, the first moving device is controlled to position the cover at the cover position,
When the yarn joining portion is to be subjected to yarn joining, the first moving device and the second moving device are controlled to separate the cover from the cover position before the yarn catching and guiding member reaches the catching position. The yarn winding device according to any one of claims 1 to 4, wherein the cover is moved from the cover position to the retracted position, and the yarn catching and guiding member is moved to the catching position.
The controller is
When the yarn joining section is caused to perform yarn joining, the first moving device and the second moving device are controlled to move the cover to the retracted position, and then the yarn catching and guiding member is brought to the catching position. The yarn winding device according to claim 6, wherein the yarn winding device is moved.
The winding unit is located above the yarn supplying unit and the yarn joining unit,
The lower side of the cover is open,
The yarn winding device according to claim 6, wherein the retracted position is a position above the cover position.
The winding unit is
A cradle for supporting the package in a posture in which the axial direction is parallel to a first direction intersecting the vertical direction;
A winding drum extending in a direction along the first direction and coming into contact with the package supported by the cradle from below;
The cradle is configured to be able to contact and separate the package with respect to the winding drum by being pivotally supported about a first axis extending in a direction along the first direction.
The cover is configured to be movable between the cover position and the retracted position by being swingably supported by a second shaft extending in a direction along the first direction. A yarn winding device according to any one of claims 6 to 8.
In a second direction orthogonal to both the vertical direction and the first direction,
The first shaft is located on one side of the rotating shaft of the winding drum,
The yarn winding device according to claim 9, wherein the second shaft is positioned closer to the one side than the first shaft.
The suction device is
A suction unit including a suction source,
A flexible connection member connecting the suction portion and the cover;
The connection member is connected to the one end of the cover in the second direction,
The yarn winding device according to claim 9, wherein the second shaft is located at an end of the one side in the second direction of the cover.
The yarn winding device according to claim 11, wherein the second shaft is positioned lower than a connection portion with the connection member in the one end portion of the cover in the second direction. apparatus.
The winding unit is
A cradle for supporting the package in a posture in which the axial direction is parallel to a first direction intersecting the vertical direction;
And a discharge path for discharging the package formed by the winding unit to one side in a second direction orthogonal to both the vertical direction and the first direction,
The cover is
A package outlet formed at the end on the one side in the second direction and for guiding the package transported through the discharge path to the outside of the cover;
The yarn winding device according to any one of claims 1 to 12, further comprising: an opening and closing member for opening and closing the package outlet.
The yarn winding device according to claim 13, wherein the opening and closing member is swingably supported around a third axis orthogonal to the second direction.
The winding unit has a cradle for supporting the package,
The yarn winding device according to any one of claims 1 to 14, wherein the cover covers the package together with the cradle.
The yarn winding device according to any one of claims 1 to 15, wherein the cover is at least partially transparent or translucent.