CN116803878A

CN116803878A - Yarn winding machine and yarn winding method

Info

Publication number: CN116803878A
Application number: CN202310087589.2A
Authority: CN
Inventors: 中村雄太
Original assignee: Murata Machinery Ltd
Current assignee: Murata Machinery Ltd
Priority date: 2022-03-25
Filing date: 2023-02-09
Publication date: 2023-09-26
Also published as: JP2023142771A

Abstract

The invention provides a yarn winding machine and a yarn winding method. The yarn winding machine is provided with: a plurality of winding units for performing winding operation to form a package; an automatic machine provided so as to be movable with respect to the plurality of winding units; and a unit determining unit for determining a winding unit on which the empty bobbin is mounted. The automatic machine performs a start winding process of starting winding the yarn around the empty bobbin, which is already mounted on the winding unit specified by the unit specifying unit, on the empty bobbin, and immediately after the start of the winding process, the winding operation is performed in the winding unit.

Description

Yarn winding machine and yarn winding method

Technical Field

One aspect of the present invention relates to a yarn winding machine and a yarn winding method.

Background

As a technology related to a yarn winding machine, for example, japanese patent application laid-open No. 2020-179985 discloses a spinning machine including a plurality of spinning units (winding units) for performing winding operations for winding a yarn around a bobbin to form a package, and a doffing cart (automatic machine) provided so as to be movable with respect to the plurality of spinning units. In the spinning machine described in japanese patent application laid-open No. 2020-179985, when a package is formed in a certain spinning unit, a doffing cart discharges the package from the spinning unit, supplies an empty bobbin to the spinning unit, and starts a winding process of winding a yarn around the empty bobbin.

Disclosure of Invention

In the winding unit, a plurality of empty bobbins are stored in a magazine provided in the automatic machine, and the empty bobbins are supplied from the magazine to the winding unit. Such an automatic machine moves to a bobbin stocker or the like when, for example, an empty bobbin of the magazine is used up, and supplements the empty bobbin to the magazine. Therefore, since it takes time to replenish the empty bobbin to the robot, there is a possibility that the processing capacity may be lowered.

Accordingly, an object of one side of the present invention is to provide a yarn winding machine and a yarn winding method capable of avoiding a decrease in processing capacity.

The yarn winding machine of one side of the present invention comprises: a plurality of winding units for performing winding operation of winding the yarn on a bobbin to form a package; an automatic machine provided so as to be movable with respect to the plurality of winding units; and a unit determining section for determining a winding unit on which an empty bobbin is mounted, the empty bobbin being subjected to a start winding process of starting winding the yarn on the empty bobbin by the automaton, the empty bobbin having been mounted on the winding unit determined by the unit determining section, and after the start winding process, a winding operation being performed in the winding unit so as to start the winding process immediately.

In this yarn winding machine, for example, a winding unit to which an empty bobbin is attached by a user can be specified by a unit specifying unit, and a winding start process is performed on the empty bobbin attached to the winding unit by an automatic machine. The frequency with which the robot itself readies empty bobbins can be reduced. Further, since the winding operation is performed immediately after the winding process is started, an unnecessary standby time can be reduced. Thus, according to the yarn winding machine of one side of the present invention, the reduction of the handling capacity can be avoided.

In the yarn winding machine according to the present invention, the unit specifying unit may include an operation unit that can accept an operation of specifying the winding unit to which the empty bobbin has been attached, and when the operation unit is operated, the automatic machine may start the winding process on the empty bobbin to which the winding unit has been attached. In this case, for example, the winding unit to which the empty bobbin is attached can be specified by an operation of the user via the operation unit.

In the yarn winding machine according to the present invention, the operation unit may be provided in at least one of the automatic machine and the end frame, and each of the winding units may be provided with an operation unit. In this case, the operation portion can be operated in at least any one of the robot and the end frame, in each of the plurality of winding units.

In the yarn winding machine according to the present invention, the unit specifying unit may include a plurality of operation buttons provided in correspondence with the plurality of winding units, and when at least any one of the plurality of operation buttons is operated, the automatic machine may start the winding process on the empty bobbin mounted on the winding unit in correspondence with the operated operation button. In this case, since the relationship between the operation button and the winding unit determined by the operation is 1 to 1, they are clearly associated, and thus, for example, the winding unit with the empty bobbin attached thereto can be accurately determined by the operation of the user via the operation button.

In the yarn winding machine according to the present invention, the winding unit may have a bobbin holder to which the bobbin is rotatably attached, and the start of the winding process may include a 1 st process of releasing the attachment of the empty bobbin attached to the bobbin holder of the winding unit. In this case, in the start of the winding process, by releasing the empty bobbin from the bobbin holder, for example, a work space can be ensured between the bobbin holder and the empty bobbin.

In the yarn winding machine according to the present invention, the automatic machine may have a gripping device for gripping and moving the empty bobbin, the start of the winding process may include a 2 nd process, and the empty bobbin, the attachment of which to the winding unit is released, may be moved to a predetermined position by the gripping device after the 1 st process. In this case, in the start of the winding process, the empty bobbin, which is released from the attachment to the winding unit, can be moved to a predetermined position, and an appropriate operation can be performed on the empty bobbin.

In the yarn winding machine according to the present invention, the automatic machine may have a yarn catching and guiding device that catches and guides the yarn, and the start winding process may include a 3 rd process of catching the yarn by the yarn catching and guiding device. In this case, during the start of the winding process, the yarn can be caught by the yarn catch guide device, and the yarn can be fixed to the empty bobbin.

In the yarn winding machine according to the present invention, at least two of the 1 st process, the 2 nd process, and the 3 rd process may be performed in parallel. In this case, the time required to start the winding process can be reduced.

In the yarn winding machine according to one aspect of the present invention, the start winding process may include: a 4 th process of moving the yarn catching and guiding device that catches the yarn to the standby position after the 2 nd process and the 3 rd process; a 5 th process of moving the empty bobbin moved to the predetermined position to the bobbin holder by the holding device after the 4 th process; and a 6 th process of installing an empty bobbin on the bobbin holder after the 5 th process. In this case, in the start of the winding process, the yarn catch guide device that catches the yarn is moved to the standby position, and the empty bobbin that has been moved to the predetermined position is returned to the bobbin holder, whereby the positional relationship between the bobbin holder and the empty bobbin with the yarn can be determined.

In the yarn winding machine according to the present invention, when the unit specifying unit specifies a plurality of winding units to which empty bobbins have been attached, the automatic machine may sequentially start winding processing on the empty bobbins to which the plurality of winding units have been attached. In this case, the automatic machine can efficiently perform the start winding process in a state where the empty bobbins are mounted to the plurality of winding units.

In the yarn winding machine according to the present invention, the plurality of winding units may each include a traverse guide for traversing the yarn, and a traverse driving unit for independently driving the traverse guide. In this case, since the traverse guide can be driven for each winding unit, winding operation can be performed using the traverse guide immediately after a part of starting winding process is performed by the traverse guide.

In the yarn winding machine according to the present invention, the plurality of winding units may each include a winding drum for rotating the bobbin or the package, and a bobbin driving section for independently driving the winding drum. In this case, since the winding drum can be driven for each winding unit, the winding operation can be performed using the winding drum immediately after the start of the winding process by the winding drum.

In the yarn winding machine according to the one aspect of the present invention, the unit specifying unit may include a 1 st information acquiring unit that acquires 1 st information on a color of a region including a bobbin attached to the winding unit, and specifies the winding unit to which the empty bobbin has been attached based on the acquired 1 st information. In this case, the winding unit to which the empty bobbin is attached can be determined by using the color of the region including the bobbin attached to the winding unit. This can prevent the automatic machine from erroneously performing the start winding process on the package.

In the yarn winding machine according to the present invention, the unit specifying unit may include a 2 nd information acquiring unit that acquires 2 nd information on a thickness of a yarn layer of the yarn wound around the bobbin mounted on the winding unit, and may specify the winding unit to which the empty bobbin has been mounted based on the acquired 2 nd information. In this case, the winding unit to which the empty bobbin is attached can be determined by using the thickness of the yarn layer of the yarn wound on the bobbin attached to the winding unit. This can prevent the automatic machine from erroneously performing the start winding process on the package.

In the yarn winding machine according to the present invention, the plurality of winding units may each include a winding drum that rotates the bobbin or the package by coming into contact with an outer peripheral surface of the bobbin or the package mounted on the winding unit, and the unit specifying unit may include a 3 rd information acquiring unit that acquires 3 rd information on a rotational speed (rotational speed per unit time) of the bobbin or the package, and specifies the winding unit on which the empty bobbin has been mounted based on the acquired 3 rd information. In this case, the winding unit to which the empty bobbin is attached can be determined by the rotational speed of the bobbin or the package. This can prevent the automatic machine from erroneously performing the start winding process on the package. Further, since the yarn winding machine is often provided with the 3 rd information acquisition unit for performing winding operation, it is not necessary to provide an additional sensor in the yarn winding machine for specifying the winding unit on which the empty bobbin is mounted, and the structure of the yarn winding machine can be simplified.

In the yarn winding machine according to the present invention, the automatic machine may have a magazine for accommodating a plurality of empty bobbins, and the bobbin setting process may be performed for the winding unit not specified by the unit specification unit, and the bobbin setting process may be performed for the winding unit specified by the unit specification unit, in which the empty bobbins are supplied from the magazine and the yarn winding is started. In this case, the yarn can be wound by supplying the empty bobbin from the magazine by the bobbin setting process of the automatic machine for the winding unit other than the winding unit to which the empty bobbin has been mounted.

In the yarn winding machine according to the present invention, the automatic machine may not receive the supply of the empty bobbins from the bobbin stocker storing the plurality of empty bobbins to the magazine for a predetermined period from the request for the start of the winding process of the empty bobbin mounted on the winding unit specified by the unit specifying unit until the execution of the start of the winding process. Since the automatic machine can use the empty bobbin already mounted to the winding unit within a predetermined period, the empty bobbin can be not accommodated in the magazine, and the empty bobbin does not need to be replenished to the magazine. Therefore, in this case, the time required for the replenishment can be eliminated in a predetermined period, and a decrease in processing capability can be avoided.

In the yarn winding machine according to the present invention, the automatic machine may be configured to move to the bobbin stocker and receive the supply of the empty bobbin from the bobbin stocker to the magazine when the empty bobbin supply start condition is satisfied in a period other than the predetermined period. In this case, the empty tube can be properly replenished to the magazine in a period other than the predetermined period. Further, the robot does not move toward the bobbin stocker for a predetermined period, and therefore, the moving efficiency of the robot can be improved.

In the yarn winding machine according to the present invention, the automatic machine may not perform the discharge process of discharging the already-mounted bobbin or package from the winding unit specified by the unit specifying unit with respect to the winding unit. In this case, the empty bobbin that has been attached to the winding unit specified by the unit specifying portion can be prevented from being discharged from the winding unit by the discharge process. Further, the user can discharge the package from the winding unit and attach the empty bobbin, and thus the load of the robot can be reduced.

The yarn winding method according to one aspect of the present invention uses a yarn winding machine including: a plurality of winding units for performing winding operation of winding the yarn on a bobbin to form a package; and an automatic machine provided so as to be movable with respect to the plurality of winding units, the yarn winding method including: a step of determining a winding unit; a step of performing a winding start process of starting winding of the yarn onto the empty bobbin, which has been mounted on the specified winding unit, by the automatic machine; and a step of performing winding operation in the winding unit immediately after the winding process is started.

In this yarn winding method, for example, when a user attaches an empty bobbin to a winding unit, the winding unit can be specified, and the automatic machine can start the winding process on the empty bobbin attached to the winding unit. The frequency with which the robot itself readies empty bobbins can be reduced. Further, since the winding operation is performed immediately after the start of the winding process, the unnecessary standby time can be reduced. Thus, according to the yarn winding method of one side surface of the present invention, the reduction of the handling capacity can be avoided.

According to one aspect of the present invention, a yarn winding machine and a yarn winding method capable of avoiding a decrease in throughput can be provided.

Drawings

Fig. 1 is a front view of a spinning machine according to an embodiment.

Fig. 2 is a side view of the spinning unit and doffing cart shown in fig. 1.

Fig. 3 is a block diagram showing a functional configuration of the spinning machine shown in fig. 1.

Fig. 4 is a side view illustrating a discharge process performed by the doffing cart shown in fig. 1.

Fig. 5 is a side view illustrating a subsequent discharge process shown in fig. 4.

Fig. 6 is a side view illustrating a bobbin installation process performed by the doffing cart shown in fig. 1.

Fig. 7 is a side view illustrating a subsequent stage of the bobbin setting process illustrated in fig. 6.

Fig. 8 is a side view illustrating a subsequent stage of the bobbin setting process illustrated in fig. 7.

Fig. 9 is a side view illustrating a subsequent stage of the bobbin setting process illustrated in fig. 8.

Fig. 10 is a side view illustrating a winding start process performed by the doffing cart shown in fig. 1.

Fig. 11 is a side view illustrating a subsequent step of starting the winding process shown in fig. 10.

Fig. 12 is a side view illustrating a subsequent step of starting the winding process shown in fig. 11.

Fig. 13 is a side view illustrating a subsequent step of starting the winding process shown in fig. 12.

Fig. 14 is a side view illustrating a subsequent step of starting the winding process shown in fig. 13.

Fig. 15 is a side view illustrating a subsequent step of starting the winding process shown in fig. 14.

Detailed Description

Hereinafter, embodiments will be described in detail with reference to the accompanying drawings. In the drawings, the same or corresponding portions are denoted by the same reference numerals, and repetitive description thereof will be omitted. The dimensional proportions of the drawings are not necessarily identical to those of the description. In the description, terms in the directions such as "up", "down", "left", "right", "front" and "rear" are convenient terms based on the states shown in the drawings.

As shown in fig. 1 and 2, a spinning machine (yarn winding machine) 1 includes a plurality of spinning units (winding units) 2, a yarn splicing carriage 3, a doffing carriage (automatic machine) 4, a 1 st end frame 5A, a 2 nd end frame 5B, a bobbin stocker 60, and a package conveyor 80. The plurality of spinning units 2 are arranged in one direction (the left-right direction in fig. 1, the longitudinal direction of the spinning machine 1). Each spinning unit 2 generates a yarn Y, and performs a winding operation of winding the yarn Y around a bobbin B to form a package P.

The 1 st end frame 5A houses a recovery device or the like for recovering lint, yarn dust, and the like generated in the spinning unit 2. The 1 st end frame 5A is disposed at one end of the plurality of spinning units 2 in the arrangement direction. The 2 nd end frame 5B houses an air supply unit that adjusts the air pressure of the compressed air (air) supplied to the spinning machine 1 and supplies air to each part of the spinning machine 1. The 2 nd end frame 5B may house a drive motor or the like for supplying power to each part of the spinning unit 2. The 2 nd end frame 5B is disposed at the other end in the arrangement direction of the plurality of spinning units 2.

The 2 nd end frame 5B is provided with an organism control device 5C, a display screen 5D, and input keys 5E. The body control device 5C centrally manages and controls the respective parts of the spinning machine 1. The display screen 5D can display information on the setting contents of the spinning unit 2. The operator can perform the setting operation of the spinning unit 2 by performing an appropriate operation using the input key 5E.

As shown in fig. 2, each spinning unit 2 includes, in order from the upstream side in the traveling direction of the yarn Y, a draft device 6, an air-jet spinning device 7, a yarn monitoring device 8, a tension sensor 9, a yarn accumulating device 11, a waxing device 12, and a winding device 13. The unit controller 10 is provided for a predetermined number (one or more) of the spinning units 2, and controls the operation of the spinning units 2.

The draft device 6 drafts the sliver S. The air-jet spinning device 7 generates the yarn Y by twisting the fiber bundle F generated by drawing the sliver S by the drawing device 6 with the whirling air flow. The yarn accumulating device 11 accumulates the yarn Y between the rotor spinning device 7 and the winding device 13, and removes the slack of the yarn Y. The waxing device 12 waxes the yarn Y between the yarn accumulating device 11 and the winding device 13. The winding device 13 winds the yarn Y around the bobbin B to form a package P. In the following description, the empty bobbin B on which the yarn Y is not wound (unreeled) is sometimes referred to as an "empty bobbin B0". In the present embodiment, the hollow tube B0 is configured as a cylindrical body. When the hollow tube B0 is viewed from the front, it is formed in a distal-end-expanded shape that expands from one end toward the other end in the axial direction.

The yarn monitoring device 8 is located between the air-jet spinning device 7 and the yarn accumulating device 11, monitors information of the advancing yarn Y, and detects the presence or absence of a yarn defect based on the monitored information. When detecting a yarn defect, the yarn monitoring device 8 transmits a yarn defect detection signal to the unit controller 10. The tension sensor 9 is located between the air spinning device 7 and the yarn accumulating device 11, measures the tension of the advancing yarn Y, and sends a tension measurement signal to the unit controller 10. When the unit controller 10 determines that there is an abnormality based on the detection result of at least one of the yarn monitoring device 8 and the tension sensor 9, the yarn Y is cut in the spinning unit 2.

The winding device 13 includes a rocker arm 21, a bobbin holder 28, a winding drum 22, and a traverse guide 23. The rocker arm 21 is supported by a support shaft 24 so as to oscillate, and the surface (outer peripheral surface) of the bobbin B or the surface of the package P is brought into contact with the surface of the winding drum 22 with an appropriate pressure. The bobbin holder 28 is provided on the rocker arm 21, and can hold both ends of the bobbin B. The bobbin B is rotatably mounted to the bobbin holder 28. The winding drum 22 contacts the surface of the bobbin B or the surface of the package P mounted on the bobbin holder 28 to rotate the bobbin B or the package P. The traverse guide 23 traverses the yarn Y with respect to the rotating bobbin B or package P.

The spinning unit 2 outputs a request signal when the package P becomes full. When a predetermined amount (predetermined length) of yarn Y is wound around the bobbin B, the spinning unit 2 determines that the package P is full, and outputs a request signal. The spinning unit 2 may output the request signal before a predetermined time when the package P becomes full.

The yarn joining carriage 3 performs a yarn joining operation to a certain spinning unit 2 when the yarn Y is cut or the yarn Y is broken for some reason in the spinning unit 2. The joint carriage 3 travels on the travel path R1. The travel path R1 extends along the arrangement direction of the plurality of spinning units 2. The joint carriage 3 includes a suction pipe 31, a joint device 32, and a suction nozzle 33. The suction pipe 31 is rotatably supported, and catches the yarn Y from the rotor spinning device 7 and guides the yarn Y to the yarn splicing device 32. The suction nozzle 33 is rotatably supported, catches the yarn Y from the winding device 13, and guides the yarn Y to the yarn splicing device 32. The yarn joining device 32 joins the guided yarns Y to each other. The piecing device 32 is a splicer using compressed air, a splicer for passing the yarn Y from the package P through the air-jet spinning device 7, a knotter for mechanically connecting the yarn Y, or the like.

The doffing cart 4 is a work cart provided so as to be movable with respect to the plurality of spinning units 2. The doffing cart 4 performs a discharge process of discharging the bobbin B or package P mounted on the spinning unit 2 from the spinning unit 2, a bobbin setting process of supplying an empty bobbin B0 from a magazine 41 (described later) to the spinning unit 2 (the spinning unit 2 with the bobbin holder 28 empty) to which the empty bobbin B0 is not mounted and starting winding of the yarn Y, and a winding start process of starting winding of the yarn Y onto the mounted empty bobbin B0 (described later in detail).

For example, when the package P becomes full in one spinning unit 2, the doffing cart 4 travels to one spinning unit 2 on the travel path R2 and stops according to a control signal from the body control device 5C, and performs the discharging process and the bobbin setting process. The travel path R2 extends along the arrangement direction (parallel to the travel path R1) of the plurality of spinning units 2. A supply position SP at which the doffing cart 4 receives the supply of the bobbin B from the bobbin stocker 60 is provided on the front side of the bobbin stocker 60. The doffing cart 4 can travel on the travel path R2 and stop at the supply position SP. The doffing cart 4 receives the supply of the bobbin B at the supply position SP, and then moves to the spinning unit 2 that requests the bobbin B.

The doffing cart 4 includes a frame 40, a magazine 41, a bobbin mounting mechanism (gripping device) 42, a cradle operation arm 43, a suction tube (yarn catching and guiding device) 44, and a control unit 46. The magazine 41, the bobbin mounting mechanism 42, the cradle operating arm 43, the suction tube 44, and the control unit 46 are housed in the frame 40.

The magazine 41 holds the bobbins B supplied from the bobbin stocker 60. The magazine 41 holds a plurality of bobbins B. A supply mechanism 47 for supplying the empty bobbin B0 to the bobbin mounting mechanism 42 is provided at the lower end portion of the magazine 41. The supply mechanism 47 is configured to include a shutter, a cylinder, and the like. The supply mechanism 47 supplies the empty bobbins B0 to the bobbin mounting mechanism 42 one by one. The operation of the supply mechanism 47 is controlled by the control unit 46.

The bobbin mounting mechanism 42 is a device for holding and moving the empty bobbin B0. The bobbin mounting mechanism 42 is configured to be swingable about a swing shaft 111, and is configured to be capable of holding the empty bobbin B0 by the bobbin holding portion 52. The bobbin mounting mechanism 42 is capable of moving the empty bobbin B0 from the supply mechanism 47 to a position between the bobbin holders 28. The bobbin mounting mechanism 42 returns the empty bobbin B0 to the origin position after moving to the bobbin holder 28. The bobbin mounting mechanism 42 is capable of moving the empty bobbin B0 from a position between the bobbin holders 28 to a predetermined position (for example, an origin position of the bobbin mounting mechanism 42).

The bobbin mounting mechanism 42 further includes a wrapping yarn winding roller 53 for wrapping yarn winding. The bobbin mounting mechanism 42 may not include the wrapping yarn winding roller 53, and may rotate the empty bobbin B0 when wrapping yarn is wound by the winding drum 22 of the spinning unit 2. The package yarn winding means that tape-like winding is performed around the empty bobbin B outside the winding width of the package P so that the yarn Y can be pulled out from the package P even after the start of winding of the yarn Y is completed. When the package yarn is wound by the winding device 13 of the spinning unit 2, the empty bobbin B0 is rotated by the winding drum 22 in a state where the traverse guide 23 is positioned outside the winding width of the package P and inside the end surface of the empty bobbin B0. The rotation speed of the winding drum 22 at this time may be the same as the rotation speed during winding of the package P or may be a low speed.

The cradle operation arm 43 is an arm that operates the cradle arm 21. The cradle operation arm 43 operates the cradle arm 21 to remove the package P or the empty bobbin B0 from the winding device 13, and opens the bobbin holder 28 (separates the other bobbin holder 28 from the one bobbin holder 28). The cradle operation arm 43 operates the cradle arm 21 to close the bobbin holders 28 (to bring the other bobbin holder 28 into proximity with the one bobbin holder 28) so as to mount the empty bobbin B0 between the bobbin holders 28. The suction tube 44 is a device for catching and guiding the yarn Y. The suction pipe 44 sucks the yarn Y sent from the air-jet spinning device 7 by the suction unit, and guides the caught yarn Y to a position where the winding process is to be started.

The doffing cart 4 further includes a guide device 61, and the guide device 61 guides the package P from the cradle arm 21 to the package conveyor 80 while contacting the package P (see fig. 4). The guide 61 includes a plate-like contact member 69 (see fig. 4) that contacts the outer peripheral surface of the package P.

The bobbin stocker 60 is disposed at one end (end where the 1 st end frame 5A is disposed) of the plurality of spinning units 2 in the arrangement direction. The bobbin B is supplied from the bobbin stocker 60 to the doffing cart 4 at the supply position SP. The bobbin stocker 60 stores a plurality of empty bobbins B0, and takes out a part of the stored empty bobbins B0 and supplies them to the doffing cart 4 by the feed mechanism 70. When the doffing cart 4 reaches the supply position SP of the bobbin stocker 60, the feed mechanism 70 supplies the bobbin B to the doffing cart 4.

The package conveyor 80 is a conveyor device that conveys the packages P discharged from the spinning unit 2 by the doffing cart 4. The package conveyor 80 is provided between the spinning unit 2 and the doffing cart 4. The doffing cart 4 may be provided with a passage space for the package P, and the travel path R2 of the doffing cart 4 may be provided between the spinning unit 2 and the package conveyor 80. The package conveyor 80 extends along the arrangement direction of the plurality of spinning units 2. The conveying direction of the package conveyor 80 for conveying the package P intersects (is orthogonal to) the discharging direction of the package P from the spinning unit 2. The package conveyor 80 is a conveyor belt that drives an endless belt by a driving roller, not shown.

As shown in fig. 3, the spinning machine 1 of the present embodiment includes a plurality of operation buttons 27 provided corresponding to the plurality of spinning units 2, respectively. The operation button 27 is provided one for each spinning unit 2. The operation button 27 is an operation portion capable of receiving a specific operation of the spinning unit 2 to which the empty bobbin B0 has been attached. The operation button 27 constitutes a unit determining section for determining the spinning unit 2 to which the empty bobbin B0 is attached. The operation button 27 may be, for example, a touch button on a touch panel or a physical button that is mechanically pressed. For example, by pressing the operation button 27, a signal for determining that the empty bobbin B0 has been mounted for the spinning unit 2 corresponding thereto is outputted to the body control device 5C. The operation buttons 27 may be provided in plural in the spinning unit 2. The position, size, number, and range of the operation buttons 27 provided in the spinning unit 2 are not particularly limited.

Each of the plurality of spinning units 2 has a traverse driving unit 25 that independently drives the traverse guide 23 (see fig. 2). Each of the plurality of spinning units 2 has a bobbin driving section 29 that independently drives the winding drum 22 (see fig. 2).

When the operation button 27 is operated, the body control device 5C outputs a request to start the winding process to the doffing cart 4 for the empty bobbin B0 already attached to the spinning unit 2 specified by the operation (in other words, the spinning unit 2 corresponding to the operated operation button 27). The doffing cart 4 receives a request to start the winding process, moves to the spinning unit 2 specified by the operation button 27, and starts the winding process. After the start of the winding process, the body control device 5C performs the winding operation in the spinning unit 2 immediately after the start of the winding process.

The start of the winding process includes a 1 st process of releasing the installation of the empty bobbin B0 that has been installed between the bobbin holders 28 of the spinning unit 2. The start of the winding process includes a 2 nd process, and after the 1 st process, the empty bobbin B0, which is released from the installation with respect to the spinning unit 2, is moved to a predetermined position by the bobbin installation mechanism 42. Beginning the winding process includes a 3 rd process, after which the yarn Y is caught by the suction tube 44. The 1 st process, the 2 nd process, and the 3 rd process are performed in parallel. "parallel execution" means that at least a part of the actions in the 1 st process, at least a part of the actions in the 2 nd process, and at least a part of the actions in the 3 rd process are performed in parallel (simultaneously). The 1 st and 2 nd treatments may be performed first, and the 3 rd treatment may be performed after the 1 st and 2 nd treatments are completed. The starting of the winding process includes: a 4 th process of moving the suction pipe 44 having caught the yarn Y to the standby position after the 2 nd and 3 rd processes; a 5 th process, after the 4 th process, of moving the empty bobbin B0 moved to the predetermined position to a position between the bobbin holders 28 by the bobbin mounting mechanism 42; and a 6 th process of installing an empty bobbin B0 between the bobbin holders 28 after the 5 th process. The predetermined position here is a position (origin position of the bobbin mounting mechanism 42) at which the supply mechanism 47 of the magazine 41 supplies the empty bobbin B0 to the bobbin holding section 52.

When the plurality of spinning units 2 to which the empty bobbin B0 has been attached are specified by the operation button 27, the machine body control device 5C sequentially performs the start winding process on the empty bobbins B0 to which the plurality of spinning units 2 have been attached by the doffing cart 4. Specifically, when a plurality of spinning units 2 are aligned, the doffing cart 4 sequentially starts the winding process from the spinning unit 2 located near the current position of the doffing cart 4.

The empty bobbin B0 is not mounted to the spinning unit 2 which is not determined by the operation button 27. That is, the package P is fully wound or nothing is mounted on the winding device 13 of the spinning unit 2. Accordingly, the body control device 5C performs the bobbin installation process by the doffing cart 4 after the package P is discharged when the full package P is mounted on the spinning unit 2. The body control device 5C does not cause the doffing cart 4 to perform the bobbin setting process (prohibit the bobbin setting process) on the spinning unit 2 specified by the operation button 27.

The machine control device 5C controls the doffing cart 4 to execute the following operations. That is, the doffing cart 4 does not receive the supply of the empty bobbin B0 from the bobbin stocker 60 (see fig. 1) to the magazine 41 for a predetermined period from the time when a request for starting the winding process (hereinafter, also referred to as "start winding request") is issued to the empty bobbin B0 already mounted to the spinning unit 2 specified by the operation button 27 until the winding process is performed. That is, the doffing cart 4 does not move to the supply position SP of the bobbin stocker 60 during the predetermined period. The doffing cart 4 moves to the bobbin stocker 60 and receives the supply of the empty bobbin B0 from the bobbin stocker 60 to the magazine 41 when the empty bobbin supply start condition is satisfied in a period other than the predetermined period (other period than the predetermined period). Before starting the winding process for the spinning unit 2 which is not specified by the operation button 27, the doffing cart 4 performs the discharging process of discharging the bobbin B or package P which has been mounted from the spinning unit 2. The doffing cart 4 does not perform the discharge process (prohibits the discharge process) on the spinning unit 2 specified by the operation button 27.

Next, an example of doffing operation in which the package P mounted on the spinning unit 2 is removed from the spinning unit 2 will be described.

As shown in fig. 4, for example, in the spinning unit 2 in which the operation button 27 is not operated, when the package P of the full package is detected by a sensor, not shown, the doffing cart 4 is moved to the spinning unit 2. The full package P may be determined based on, for example, detection of the winding of the yarn Y of a predetermined length around the package P by the yarn monitoring device 8. The unit controller 10 controls the rocker arm 21 to rotate so that the package P is separated from the winding drum 22, and cuts off the rotational driving force to the package P. Alternatively, when the package P becomes full, the unit controller 10 may stop the rotation of the package P by stopping the rotation of the winding drum 22. In this case, the operation of separating the package P from the winding drum 22 may be omitted. After that, the doffing cart 4 performs the following discharge process.

That is, the guide cylinder 62 of the extension guide device 61 rotates the contact member 69 upward to contact the package P. In this way, the inertia of the package P can be rotated when the package P rotates inertly. Before the inertial rotation of the package P is completely stopped, the cradle operation arm 43 is moved to the position shown in fig. 4. When the inertial rotation of the package P is completely stopped, the doffing cart 4 operates the cradle arm 21 by the cradle operation arm 43 to separate one bobbin holder 28 from the other bobbin holder 28, and removes the full package P.

The unloaded full-wound package P is guided to the inclined portion 81 while being supported by the contact member 69 of the guide 61. Then, the guide 61 maintains a state of contact with the package P, and rolls and moves the package P along the inclined portion 81. At this time, the roller member 67 of the guide 61 rolls on the inclined portion 81. Thereafter, as shown in fig. 5, the package P is guided to the package conveyor 80. The spinning machine 1 may be configured without the guide device 61, and the package P removed from the cradle arm 21 may roll on the inclined portion 81 to reach the package conveyor 80.

Next, an example of a bobbin setting process of supplying the empty bobbin B0 from the magazine 41 to the spinning unit 2 and starting winding the yarn Y will be described.

As shown in fig. 6, for example, in the spinning unit 2 in which the operation button 27 is not operated, the package P is discharged by, for example, a discharge process, and when the empty bobbin B0 is not mounted between the bobbin holders 28, the doffing cart 4 performs the following bobbin setting process. That is, first, the suction pipe 44 is extended upward. The suction pipe 44 catches the yarn end of the yarn Y discharged from the air-jet spinning device 7 by suction.

As shown in fig. 7, the suction pipe 44 is moved downward in a state where the yarn Y is caught by suction. At this time, the unit controller 10 controls the yarn Y sucked by the suction pipe 44 to be wound around the yarn accumulating device 11. The suction force of the suction pipe 44 is small and does not overcome the resistance moment of the yarn accumulating device 11, so that the yarn Y is accumulated in the yarn accumulating device 11. After the pipette 44 is moved downward, the pipette 44 is continued to stand by at the standby position. As a result, the yarn Y is guided between the tip of the suction pipe 44 and the yarn accumulating device 11 to form a predetermined yarn path.

Before or after the movement of the suction pipe 44, the cradle arm 21 is operated by the cradle operation arm 43 to separate one bobbin holder 28 from the other bobbin holder 28. The empty bobbin B0 stored in the magazine 41 is sent to the supply mechanism 47, and the empty bobbin B0 is gripped by the bobbin gripping portion 52 of the bobbin mounting mechanism 42 at the position of the supply mechanism 47 (the origin position of the bobbin mounting mechanism 42).

As shown in fig. 8 and 9, the bobbin mounting mechanism 42 is moved in from the doffing cart 4 side, and the empty bobbin B0 is supplied to the bobbin holder 28. That is, the empty bobbin B0 and the yarn Y are simultaneously supplied to a position between the pair of bobbin holders 28. In this state, the yarn Y is disposed so as to traverse the empty bobbin B0 at the axial end of the empty bobbin B0. In this state, the cradle arm 21 is operated by the cradle operation arm 43 to bring one bobbin holder 28 close to the other bobbin holder 28, whereby the empty bobbin B0 is mounted on the bobbin holder 28, and the yarn Y is clamped and fixed between the end of the empty bobbin B0 and the bobbin holder 28.

Then, the yarn Y is cut at a position between the empty bobbin B0 and the suction tube 44 by a cutter (not shown) provided in the bobbin mounting mechanism 42. The bobbin holding portion 52 releases the holding of the empty bobbin B0. The over-head yarn winding roller 53 is brought into contact with the empty bobbin B0, and the empty bobbin B0 is rotated by the over-head yarn winding roller 53. Thereby, the package yarn winding is formed at a position near the axial end of the empty bobbin B0. Thereafter, the bobbin mounting mechanism 42 withdraws toward the doffing cart 4 side, and the bobbin setting process is completed. At the same time as the bobbin setting process is completed, the unit controller 10 rotates the rocker arm 21 to bring the empty bobbin B0 into contact with the winding drum 22. Thereby, the winding tension is applied to the yarn Y, the yarn Y is gradually unwound from the yarn accumulating device 11, and the winding operation of the package P is started in the spinning unit 2 immediately after the completion of the bobbin setting process.

Next, an example of the operation started when the yarn Y is wound around the empty bobbin B0 already mounted to the spinning unit 2 will be described.

As shown in fig. 10, in a certain spinning unit 2, after the empty bobbin B0 is mounted by the user, the user operates the operation button 27 of the spinning unit 2. Thus, a start winding request for starting the winding process is output from the body control device 5C to the doffing cart 4 to the empty bobbin B0 already mounted to the spinning unit 2. The doffing cart 4 having received the winding start request moves to the spinning unit 2, and performs the following winding start processing with respect to the empty bobbin B0 already mounted to the spinning unit 2.

That is, as shown in fig. 11, the bobbin mounting mechanism 42 is moved in from the doffing cart 4 side, and the empty bobbin B0 mounted on the spinning unit 2 is gripped by the bobbin gripping portion 52 of the bobbin mounting mechanism 42. Then, the cradle arm 21 is operated by the cradle operation arm 43 to separate one bobbin holder 28 from the other bobbin holder 28, and the installation of the empty bobbin B0 already installed between the bobbin holders 28 is released (processing 1).

Next, as shown in fig. 12, the bobbin mounting mechanism 42 is swung about the swing shaft 111, and the empty bobbin B0 is moved to a predetermined position (the position of the supply mechanism 47 (the origin position of the bobbin mounting mechanism 42)) (processing 2). At the same time, or before or after that, the suction pipe 44 is extended upward, and the yarn end of the yarn Y discharged from the air-jet spinning device 7 is sucked by the suction pipe 44 (process 3).

Next, as shown in fig. 13, the suction pipe 44 is moved downward in a state where the yarn Y is caught by suction. Since the yarn accumulating device 11 is disposed on the moving trajectory of the suction pipe 44, the yarn Y sucked by the suction pipe 44 starts to be wound around the yarn accumulating device 11 as the suction pipe 44 moves downward. The suction force of the suction pipe 44 is small and does not overcome the resistance moment of the yarn accumulating device 11, so that the yarn Y is accumulated on the yarn accumulating device 11. After the yarn Y is initially stored in the yarn storage device 11, the yarn Y may be discarded. Specifically, the yarn Y is pulled out from a yarn hooking member provided to the yarn accumulating roller of the yarn accumulating device 11 by a yarn removing lever, not shown, and the yarn Y is pulled up and discarded by the suction pipe 44. Then, the yarn removing lever is moved to hook the yarn Y to the yarn hooking member again, whereby the yarn Y of stable quality can be stored in the yarn storage device 11. In this way, after the pipette 44 is moved downward, the pipette 44 is continued to stand by at the standby position (processing 4). As a result, the yarn Y is guided between the tip of the suction pipe 44 and the yarn accumulating device 11 to form a predetermined yarn path.

Next, at the position of the supply mechanism 47, the empty bobbin B0 is again gripped by the bobbin gripping portion 52 of the bobbin mounting mechanism 42. In the case where the bobbin mounting mechanism 42 is configured to move the empty bobbin B0 to another position without moving the empty bobbin B0 to the supply mechanism 47, the bobbin holding section 52 may continue to hold the empty bobbin B0 in a series of operations (the operation of holding again may be omitted). As shown in fig. 14 and 15, the bobbin mounting mechanism 42 is moved from the doffing cart 4 side, and the empty bobbin B0 is moved to return to the position between the bobbin holders 28 (processing 5). That is, the empty bobbin B0 and the yarn Y are simultaneously supplied to a position between the pair of bobbin holders 28. In this state, the yarn Y is disposed so as to traverse the empty bobbin B0 at the axial end of the empty bobbin B0. In this state, the cradle arm 21 is operated by the cradle operation arm 43 to bring one bobbin holder 28 close to the other bobbin holder 28, whereby the empty bobbin B0 is mounted on the bobbin holder 28, and the yarn Y is clamped and fixed between the end of the empty bobbin B0 and the bobbin holder 28 (process 6).

Then, the yarn Y is cut at a position between the empty bobbin B0 and the suction tube 44 by a cutter (not shown) provided in the bobbin mounting mechanism 42. The bobbin holding portion 52 releases the holding of the empty bobbin B0. The over-head yarn winding roller 53 is brought into contact with the empty bobbin B0, and the empty bobbin B0 is rotated by the over-head yarn winding roller 53. Thereby, the package yarn winding is formed at a position near the axial end of the empty bobbin B0. After that, the bobbin mounting mechanism 42 withdraws toward the doffing cart 4 side, and the winding process is completed. Simultaneously with completion of the start of the winding process, the unit controller 10 rotates the rocker arm 21 to bring the empty bobbin B0 into contact with the winding drum 22. Thereby, the winding tension is applied to the yarn Y, the yarn Y is gradually unwound from the yarn accumulating device 11, and immediately after the winding process is started, the winding operation of the package P is started in the spinning unit 2 without interruption.

In the above, the step of the user operating the operation button 27 of the spinning unit 2 corresponds to the step of determining the spinning unit 2. The doffing cart 4 performs a process of starting the winding process for the empty bobbin B0 already mounted on the spinning unit 2, and corresponds to a process of starting the winding process performed by the doffing cart 4. The step of starting the winding operation of the package P by gradually unwinding the yarn Y from the yarn accumulating device 11 while the winding process is completed by rotating the rocker arm 21, corresponds to the step of starting the winding operation immediately after the winding process is started.

Further, the operation when the winding start process of the doffing cart 4 fails will be described. When the winding start process of the doffing cart 4 fails, two countermeasures are performed according to the failure condition. First, the 1 st countermeasure relates to a countermeasure when the doffing cart 4 fails before the winding process is started on the empty bobbin B0 that has been mounted. For example, this corresponds to a failure of suction tube 44 to suck yarn Y. At this time, the yarn is not yet wound on the empty bobbin B0 that has been mounted, and therefore, the empty bobbin B0 that has been mounted can be used in the next starting winding process. Therefore, in countermeasure 1, the winding start process of the doffing cart 4 is restarted from the beginning. Next, the 2 nd countermeasure relates to a countermeasure when the doffing cart 4 fails after the winding process is started on the empty bobbin B0 that has been mounted. At this time, the yarn is often stopped after the yarn has been wound on the empty bobbin B0 that has been mounted, and thus the empty bobbin B0 that has been mounted and wound with the yarn cannot be used in the next starting winding process. Therefore, in countermeasure 2, the control unit 46 of the doffing cart 4 lights an operator call alarm (not shown) provided in the vicinity of the operation button 27 of the spinning unit 2, and the empty bobbin B0, around which the yarn is wound, is mounted on the spinning unit 2. Thus, as a loop of countermeasure 2, the operator guides the process of the already-mounted empty bobbin B0 around which the yarn is wound by the operator. After the yarn residue processing of the empty bobbin B0, the operator performs an alarm canceling operation. When the installation of the empty bobbin B0 is completed, the operation button 27 is operated to cause the body control device 5C to determine that the spinning unit 2 to which the empty bobbin B0 has been installed. The body control device 5C outputs a request to start the winding process to the doffing cart 4 for the empty bobbin B0 already attached to the spinning unit 2 specified by the operation. The doffing cart 4 receives a request to start the winding process, moves to the spinning unit 2 specified by the operation button 27, and again starts the winding process.

Next, an example of supplying the empty bobbin B0 to the magazine 41 of the doffing cart 4 will be described. For example, when the empty bobbin supply start condition that the number of empty bobbins B0 of the magazine 41 is 0 or the like is satisfied, the doffing cart 4 travels to the supply position SP of the bobbin stocker 60 and receives a new bobbin B. At this time, the doffing cart 4 does not receive the supply of the empty bobbin B0 from the bobbin stocker 60 to the magazine 41 for a predetermined period from the start of the winding request to the start of the winding process. In other words, the doffing cart 4 moves to the bobbin stocker 60 and receives the supply of the empty bobbin B0 from the bobbin stocker 60 to the magazine 41 when the empty bobbin supply start condition is satisfied in a period other than the predetermined period. The conditions for starting the supply of the empty bobbin are particularly limited, and may be various conditions. The case where the empty bobbin supply start condition is satisfied may be a case where the number of empty bobbins B0 accommodated in the magazine 41 of the doffing cart 4 is 1 or more and less than the satisfied number, and the discharging process cannot be performed by the doffing cart 4 during the operation of the package conveyor 80. Alternatively, the empty bobbin supply start condition may be satisfied when the user operates an operation unit such as an operation button or an input key 5E of the doffing cart 4. In addition to the configuration in which the doffing cart 4 receives the supply of the bobbin B from the bobbin stocker 60, the bobbin B may be directly supplied to the magazine 41 of the doffing cart 4 by a user.

Next, an example of the operation at the time of starting (starting, starting mass production) of the spinning machine 1 will be described.

The user first installs the empty bobbin B0 on the plurality of spinning units 2 and operates the operation buttons 27 of the plurality of spinning units 2. Thereby, a request for starting the winding process is output from the body control device 5C to the doffing cart 4 to the plurality of spinning units 2. As a result, the doffing cart 4 sequentially performs the winding start process on the empty bobbins B0 already mounted on the plurality of spinning units 2. The plurality of spinning units 2 to be subjected to the winding process may be all the spinning units 2 of the spinning machine 1 or some of the spinning units 2. In addition, the user may perform the start winding process by collectively operating the plurality of spinning units 2 on the display screen 5D (see fig. 1).

As described above, in the spinning machine 1, for example, when the user attaches the empty bobbin B0 to the spinning unit 2, the empty bobbin B0 attached to the spinning unit 2 can be subjected to the start winding process by the doffing cart 4 by specifying the spinning unit 2 through the operation button 27. The frequency of the doffing cart 4 itself to prepare the empty bobbin B0 again can be reduced, and the frequency of the empty bobbin B0 being replenished to the doffing cart 4 can be reduced. Further, since the winding operation is performed immediately after the winding process is started (in other words, the process is not interrupted between the start of the winding process and the winding operation), an unnecessary standby time can be reduced. Therefore, according to the spinning machine 1, a decrease in processing capacity can be avoided. For example, when the frequency of the package P becoming full is high, it is effective to use the configuration of the empty bobbin B0 already mounted to the spinning unit 2. The case where the frequency of the package P becoming full is high is assumed to be at least one of a case where the spinning speed or winding speed is high, a case where the thickness of the yarn Y wound onto the package P is thick, and a case where the full-package diameter of the package P is small (a case where the full-package length is short). The winding operation immediately after the winding process is started means that at least one of the winding operation is performed immediately after the winding process is started, the winding operation is performed continuously after the winding process is started, the winding operation is performed without delay (without an interval) after the winding process is started, and the start timing of the winding operation is not a timing later than the end timing of the winding process is started.

In the spinning machine 1, the operation button 27 constitutes an operation portion capable of receiving an operation for specifying the spinning unit 2 to which the empty bobbin B0 has been attached. In this case, since the operation button 27 is in a relationship of 1 to 1 with the spinning unit 2 determined by the operation, and the relationship is clearly established, the spinning unit 2 with the empty bobbin B0 attached can be accurately determined by the operation of the user via the operation button 27. In the spinning machine 1, the spinning unit 2 in which the operation button 27 is operated can be directly handled as the spinning unit 2 to which the empty bobbin B0 has been attached, and no discriminating process is required.

In the spinning machine 1, operation buttons 27 are provided in each of the plurality of spinning units 2. In this case, the operation button 27 can be operated in each of the plurality of spinning units 2. Further, since the operation button 27 is in a 1-to-1 relationship with the spinning unit 2 determined by the operation, for example, the spinning unit 2 to which the empty bobbin B0 is attached can be accurately determined by the operation of the user via the operation button 27.

In the spinning machine 1, the spinning unit 2 has a bobbin holder 28. The start of the winding process includes a 1 st process of removing the empty bobbin mounted on the bobbin holder 28 of the spinning unit 2. In this case, when the winding process is started, the empty bobbin B0 is released from the attachment, and thus, for example, a work space can be secured between the bobbin holder 28 and the empty bobbin B0.

In the spinning machine 1, the doffing cart 4 has a bobbin mounting mechanism 42. The start of the winding process includes a 2 nd process, and after the 1 st process, the empty bobbin B0, which is released from the installation with respect to the spinning unit 2, is moved to a predetermined position by the bobbin installation mechanism 42. In this case, in the start of the winding process, the empty bobbin B0 can be moved to a predetermined position, and an appropriate operation can be performed on the empty bobbin B0.

In the spinning machine 1, the doffing cart 4 has a suction pipe 44. Beginning the winding process includes a 3 rd process of capturing the yarn Y through the suction tube 44. In this case, during the start of the winding process, the yarn Y can be caught by the suction pipe 44 and fixed to the empty bobbin B0. In the spinning machine 1, the 1 st process, the 2 nd process, and the 3 rd process are performed in parallel. In this case, the time required to start the winding process can be reduced. The 1 st process, the 2 nd process, and the 3 rd process are not limited to be performed in parallel, and at least two of the 1 st process, the 2 nd process, and the 3 rd process may be performed in parallel.

In the spinning machine 1, the start of the winding process includes: a 4 th process of moving the suction pipe 44 having caught the yarn Y to the standby position after the 2 nd and 3 rd processes; a 5 th process, after the 4 th process, of moving the empty bobbin B0 moved to the predetermined position to the bobbin holder 28 by the bobbin mounting mechanism 42; and a 6 th process of mounting an empty bobbin on the bobbin holder 28 after the 5 th process. In this case, in the start of the winding process, the suction pipe 44 that catches the yarn Y is moved to the standby position, and the empty bobbin B0 that has been moved to the predetermined position is returned to the bobbin holder 28, whereby the positional relationship between the bobbin holder 28 and the empty bobbin B0 and the yarn Y can be determined.

In the spinning machine 1, when a plurality of spinning units 2 to which empty bobbins B0 have been attached are specified by the operation button 27, the doffing cart 4 sequentially performs the start winding process on the empty bobbins B0 to which the plurality of spinning units 2 have been attached, respectively. In this case, in a state where the empty bobbin B0 is mounted to the plurality of spinning units 2 (for example, at the time of starting the spinning machine 1), the doffing cart 4 can efficiently perform the start-up winding process.

In the spinning machine 1, each of the plurality of spinning units 2 includes a traverse guide 23 and a traverse driving unit 25 that independently drives the traverse guide 23. In this case, since the traverse guide 23 can be driven for each spinning unit 2, the winding operation can be performed using the traverse guide 23 without interruption after a part of the winding start process is performed by the traverse guide 23. That is, after the package yarn winding is formed in a state in which the traverse guide 23 is positioned outside the winding width of the package P and at a position or in a region that is positioned inside the end surface of the empty bobbin B0, the traverse guide 23 is moved from the package yarn winding position (region) to the winding width of the package P and reciprocated without removing the yarn Y from the traverse guide 23, whereby the package yarn winding and the winding operation of the package P (the traverse of the yarn Y) can be performed without interruption. As a result, the package yarn winding can be formed in each spinning unit 2, and the subsequent winding operation (winding of the package P) can be continued.

In the spinning machine 1, each of the plurality of spinning units 2 includes a winding drum 22 for rotating the bobbin B or the package P, and a bobbin driving section 29 for independently driving the winding drum 22. In this case, since the winding drum 22 can be driven for each spinning unit 2, the winding operation can be performed using the winding drum 22 without interruption after a part of the start of the winding process is performed by the winding drum 22. That is, in a state in which the traverse guide 23 is located outside the winding width of the package P and inside the end surface of the empty bobbin B0, the empty bobbin B0 is rotated by the winding drum 22 to form the package yarn winding, and then the winding drum 22 and the bobbin B are rotated at the winding speed while maintaining the contact state of the winding drum 22 and the bobbin B. As a result, the package yarn winding can be formed in each spinning unit 2, and the subsequent winding operation (winding of the package P) can be continued.

In the spinning machine 1, the doffing cart 4 has a magazine 41. The bobbin setting process is performed for the spinning unit 2 not specified by the operation button 27, and the bobbin setting process is not performed for the spinning unit 2 specified by the operation button 27. In this case, the yarn winding process of the yarn Y can be started by supplying the empty bobbin B0 from the magazine 41 to the spinning units 2 other than the spinning unit 2 to which the empty bobbin B0 has been attached through the bobbin setting process of the doffing cart 4.

In the spinning machine 1, the doffing cart 4 does not receive the supply of the empty bobbin B0 from the bobbin stocker 60 to the cop magazine 41 for a predetermined period from the start of the winding request for the empty bobbin B0 already mounted on the spinning unit 2 specified by the operation button 27 until the start of the winding process is performed. Since the doffing cart 4 can use the empty bobbin B0 already mounted to the spinning unit 2 during the predetermined period, the empty bobbin B0 may not be stored in the magazine 41, and the empty bobbin B0 does not need to be replenished to the magazine 41. Therefore, in this case, the time required for the replenishment can be eliminated in a predetermined period, and a decrease in processing capability can be avoided. Since the doffing cart 4 does not move to the bobbin stocker 60 in order to receive the empty bobbin B0 during the predetermined period, the moving distance of the doffing cart 4 can be shortened, and the operation efficiency of the entire spinning machine 1 can be improved.

In the spinning machine 1, when the doffing cart 4 satisfies the empty bobbin supply start condition in a period other than the predetermined period, the doffing cart moves to the bobbin stocker 60 and receives the supply of the empty bobbin B0 from the bobbin stocker 60 to the magazine 41. In this case, the empty tube B0 can be appropriately replenished to the magazine 41 in a period other than the predetermined period. Further, since the doffing cart 4 does not move to the bobbin stocker 60 for a predetermined period, the movement efficiency of the doffing cart 4 can be improved.

In the spinning machine 1, the doffing cart 4 does not perform the discharge process on the spinning unit 2 specified by the operation button 27. In this case, the empty bobbin B0 that has been attached to the spinning unit 2 specified by the operation button 27 can be prevented from being discharged from the spinning unit 2 by the discharge process. Further, by the user performing the ejection of the package P from the spinning unit 2 and the installation of the empty bobbin B0, the load of the doffing cart 4 can be reduced.

The yarn winding method comprises the steps of: a step of determining the spinning unit 2; a step of starting winding processing for starting winding yarn Y on an empty bobbin B0 mounted on the specified spinning unit 2 by the doffing cart 4; and a step of automatically performing a winding operation in the spinning unit 2 immediately after the winding process is started. In this yarn winding method, the reduction of the handling capacity can be avoided.

The embodiments have been described above, but one embodiment of the present invention is not necessarily limited to the above embodiments, and various modifications can be made without departing from the gist thereof.

In the above embodiment, the operation buttons 27 are provided as the operation portions, but the operation portions are not particularly limited, and may be various elements as long as they can accept an operation input by a user. For example, the operation unit may be constituted by an input key 5E (see fig. 1). The operation units are provided in the plurality of spinning units 2, respectively, but the doffing cart 4 may be provided in at least one of the 1 st end frame (end frame) 5A and the 2 nd end frame (end frame) 5B instead of or in addition to the operation units. In this case, the operation portion can be operated in at least any one of the 1 st end frame 5A and the 2 nd end frame 5B.

In the above embodiment and modification, the unit specifying unit may include a 1 st information acquiring unit that acquires 1 st information on the color of the region including the bobbin B attached to the spinning unit 2, and specifies the spinning unit 2 to which the empty bobbin B0 has been attached based on the acquired 1 st information. The empty bobbin B0 can be distinguished from the package P based on the difference in color thereof. Therefore, in this case, for example, in the region including the bobbin B, if the color of the package P (the color of the yarn Y) is dominant, it can be determined that the package P has been mounted on the spinning unit 2, and on the other hand, if the color of the empty bobbin B0 (the color of the paper tube) is dominant, it can be determined that the empty bobbin B0 has been mounted on the spinning unit 2. That is, the color of the region including the bobbin B attached to the spinning unit 2 can be used to determine the spinning unit 2 to which the empty bobbin B0 is attached. This can prevent the doffing cart 4 from erroneously performing the start winding process on the package P. As the 1 st information acquiring unit, for example, a camera is used, and in this case, the 1 st information is an image of the region including the bobbin B.

In the above embodiment and modification, the unit specifying unit may include a 2 nd information acquiring unit that acquires 2 nd information on the thickness of the yarn layer of the yarn Y wound around the bobbin B attached to the spinning unit 2, and specifies the spinning unit 2 to which the empty bobbin B0 has been attached based on the acquired 2 nd information. The empty bobbin B0 and the package P can be distinguished based on the thickness of the yarn layer of the yarn Y wound around the bobbin B (the distance from the outer peripheral surface of the empty bobbin B0 to the wound portion (outer peripheral surface) of the package P). Therefore, in this case, for example, when the yarn layer of the wound yarn Y is thick, it can be determined that the package P is already mounted on the spinning unit 2, and when the yarn layer of the wound yarn Y is not present, it can be determined that the empty bobbin B0 is already mounted on the spinning unit 2. That is, the thickness of the yarn layer of the yarn Y wound around the empty bobbin B0 attached to the spinning unit 2 can be used to determine the spinning unit 2 to which the empty bobbin B0 is attached. This can prevent the doffing cart 4 from erroneously performing the start winding process on the package P. As the 2 nd information acquiring unit, for example, a distance measuring sensor is used, and in this case, the 2 nd information is a distance from the distance measuring sensor to a predetermined position on the outer peripheral surface of the package P or the bobbin B.

In the above embodiment and modification, the unit specifying unit may include a 3 rd information acquiring unit that acquires 3 rd information related to the rotational speed (rotational speed per unit time) of the bobbin B or the package P rotated by the winding drum 22, and specifies the spinning unit 2 to which the empty bobbin B0 has been attached based on the acquired 3 rd information. When the empty bobbin B0 or the package P is rotated by the winding drum 22, for example, the diameter of the package P is large, and thus the distance (time) until the package P rotates once is long. Therefore, the empty bobbin B0 rotated by the winding drum 22 can be distinguished from the package P based on the rotation speed. In this case, when the acquired rotational speed is less than the threshold value, it can be determined that the package P has been mounted on the spinning unit 2, and when the acquired rotational speed is equal to or greater than the threshold value, it can be determined that the empty bobbin B0 has been mounted on the spinning unit 2. That is, the spinning unit 2 to which the empty bobbin B0 is attached can be specified by the rotational speed of the bobbin B or the package P. This can prevent the doffing cart 4 from erroneously performing the start winding process on the package P. Further, since the spinning machine 1 is often provided with the 3 rd information acquisition unit for performing the winding operation, it is not necessary to provide an additional sensor in the spinning machine 1 for specifying the spinning unit 2 to which the empty bobbin B0 is attached, and the structure of the spinning machine 1 can be simplified. As the 3 rd information acquiring unit, for example, a rotation sensor of the winding drum 22 is used, and in this case, the 3 rd information is the rotation speed of the winding drum 22.

In addition, in the case where the spinning unit 2 is determined based on various information (for example, the operations performed by the user, the 1 st to 3 rd information), it may be determined that the spinning unit 2 has the empty bobbin B0 mounted in the case where all of them indicate that the empty bobbin B0 has been mounted. Alternatively, in the spinning unit 2 in which the operation button 27 is operated, when at least any one of the 1 st to 3 rd pieces of information indicates that the empty bobbin B0 has been mounted, it may be determined that the empty bobbin B0 has been mounted in the spinning unit 2.

In the above embodiment and modification, the predetermined position at which the empty bobbin B0 is moved by the bobbin mounting mechanism 42 and the mounting is released is set as the origin position of the bobbin mounting mechanism 42, but the predetermined position is not particularly limited and may be various positions. For example, the predetermined position may be a position outside the doffing cart 4. The above embodiment and modification may be a method in which the empty bobbin B0 is transported from the bobbin stocker 60 to the doffing cart 4 by a belt provided along the longitudinal direction of the spinning machine 1. In the above embodiment and modification, the empty bobbin B0 and the yarn Y are simultaneously guided to the bobbin holder 28, but the empty bobbin B0 may be guided to the bobbin holder 28 first, and then the yarn Y may be guided between the empty bobbin B0 and the bobbin holder 28, or the reverse order of guiding may be adopted.

In the above embodiment and modification, the case where the yarn winding machine is the spinning machine 1 and the winding unit is the spinning unit 2 is described as an example. However, the yarn winding machine may be an automatic doffer or an open-end spinning machine. In the above embodiment and modification, the description has been made taking, as an example, a mode in which the doffing cart 4 is provided between the spinning unit 2 and the package conveyor 80. However, the package conveyor 80 may be provided between the spinning unit 2 and the doffing cart 4.

In the above embodiment and modification, the case where the bobbin stocker 60 is disposed at one end portion (the end portion where the 1 st end frame 5A is disposed) of the plurality of spinning units 2 in the arrangement direction has been described as an example. However, the bobbin stocker 60 may be disposed at the other end (the end where the 2 nd end frame 5B is disposed) of the plurality of spinning units 2 in the arrangement direction. The bobbin stocker 60 may be provided in plural. In this case, the spinning machine 1 may include a plurality of doffing carriages 4.

In the above embodiment and modification, fig. 1 illustrates a state in which an operator can visually recognize a bobbin B accommodated in the bobbin stocker 60 from the front side of the spinning machine 1. However, the arrangement of the bobbin stocker 60 is not limited to this arrangement, and may be arranged on at least one of the side surface and the back surface of the spinning machine 1, for example. Instead of the configuration in which the bobbin stocker 60 is disposed at the end portion in the longitudinal direction of the spinning machine 1 (the arrangement direction of the spinning units 2), the bobbin stocker 60 may be disposed at the central portion in the longitudinal direction of the spinning machine 1.

In the above embodiment and modification, the embodiment in which the package conveyor 80 is a conveyor belt is described as an example. However, the method of conveying the package P by the package conveyor 80 is not limited to the conveyor belt. In the above embodiment and modification, instead of the package conveyor 80, a mounting table having no conveying function may be provided so as to be able to mount the packages P discharged from the spinning unit 2.

In the above embodiment and modification, in the spinning machine 1, each device is arranged such that the yarn Y supplied from the upper side in the height direction is wound up on the lower side. However, in the spinning machine 1, each device may be arranged such that the yarn supplied from the lower side is wound up on the upper side. In the above embodiment and modification, although there is a device in which the driving unit is shared by a plurality of spinning units 2, the spinning machine 1 may be configured so that all the devices are driven independently of the other spinning units 2 in each spinning unit 2.

In the above embodiment and modification, the case where the display screen 5D and the input keys 5E are provided in the 2 nd end frame 5B has been described as an example, but a touch panel display may be provided in the 2 nd end frame 5B. In this case, the touch panel display may be an operation unit. In the above embodiment and modification, the toe yarn winding is formed in the empty bobbin B0 at the start of winding the yarn Y into the empty bobbin B0, but the toe yarn winding may not be formed, and winding of the yarn Y into the empty bobbin B0 may be started by a winding method other than the toe yarn winding.

In the above embodiment and modification, the description has been made with respect to the manner in which the doffing cart 4 travels on the travel path R2 as an example. However, the doffing cart 4 may travel on a rail. The joint carriage 3 may travel on a rail. The spinning machine 1 may be configured so that the yarn joining carriage 3 is omitted, and each spinning unit 2 includes at least a part of the configuration associated with the yarn joining operation.

In fig. 1, the spinning machine 1 is shown as a package P in a cone shape, but a package P in a cone shape may be wound. In the spinning unit 2, the yarn accumulating device 11 has a function of drawing out the yarn Y from the open-end spinning device 7, but the yarn Y may be drawn out from the open-end spinning device 7 by a feed roller and a pinch roller. In the case where the yarn Y is pulled out from the air-jet spinning device 7 by the feed roller and the grip roller, a slack eliminating tube, a mechanical compensator, and the like that absorbs the slack of the yarn Y by the suction air flow may be provided instead of the yarn accumulating device 11.

The tension sensor 9 may be disposed upstream of the yarn monitoring device 8 in the traveling direction of the yarn Y. The unit controller 10 may be provided for each spinning unit 2. In the spinning unit 2, the waxing device 12, the tension sensor 9, and the yarn monitoring device 8 may be omitted. In the case where the yarn Y is not waxed, the waxing device 12 may be provided in the spinning unit 2, and the wax may be removed from the waxing device 12. In the above, the materials and shapes of the respective components are not limited to the above materials and shapes, and various materials and shapes can be adopted.

Claims

1. A yarn winding machine, characterized by having:

Multiple winding units perform the winding action of winding the yarn onto the bobbin to form a package;

An automatic machine arranged to be movable relative to a plurality of the above-mentioned winding units; and

The unit determination part determines the above-mentioned winding unit in which the empty bobbin is installed,

The automatic machine performs a winding start process of starting to wind the yarn on an empty bobbin that has been installed in the winding unit determined by the unit determining unit,

After the above-mentioned start of the winding process, the above-mentioned winding operation is performed in the winding unit in a manner immediately following the above-mentioned start of the winding process.

2. Yarn winding machine according to claim 1, characterized in that,

The unit determination unit includes an operation unit capable of accepting an operation for determining the winding unit to which the empty bobbin has been installed,

When the operation unit is operated, the automatic machine performs the winding start process on the empty bobbin already mounted on the winding unit determined by the operation.

3. Yarn winding machine according to claim 2, characterized in that,

The operation unit is provided in each of the plurality of winding units, at least one of the robot and the end frame.

4. The yarn winding machine according to any one of claims 1 to 3, characterized in that,

The unit determining unit includes a plurality of operation buttons respectively provided corresponding to the plurality of winding units,

When at least one of the plurality of operation buttons is operated, the automatic machine performs the winding start process on the empty bobbin already installed in the winding unit corresponding to the operated operation button.

5. The yarn winding machine according to any one of claims 1 to 4, characterized in that,

The above-mentioned winding unit has a bobbin bracket, and the bobbin is rotatably installed on the above-mentioned bobbin bracket,

The above-mentioned winding start process includes a first process of releasing the installation of the empty bobbin already mounted on the bobbin holder of the above-mentioned winding unit.

6. Yarn winding machine according to claim 5, characterized in that,

The above-mentioned automatic machine has a holding device for holding and moving the empty bobbin,

The above-mentioned winding start process includes a second process, and after the above-mentioned first process, the empty bobbin whose attachment to the above-mentioned winding unit is released is moved to a predetermined position by the above-mentioned holding device.

7. The yarn winding machine according to claim 6, characterized in that,

The above-mentioned automatic machine has a yarn catching and guiding device that catches and guides the yarn,

The above-mentioned winding start processing includes a third process of catching the yarn by the above-mentioned yarn catching and guiding device.

8. The yarn winding machine according to claim 7, characterized in that,

At least two of the above-mentioned first process, the above-mentioned second process, and the above-mentioned third process are executed in parallel.

9. The yarn winding machine according to claim 7 or 8, characterized in that,

The above-mentioned start winding process includes:

A fourth process, after the above-mentioned second process and the above-mentioned third process, moves the above-mentioned yarn catching and guiding device that has captured the yarn to a waiting position;

In a fifth process, after the fourth process, the empty bobbin moved to the predetermined position is moved to the bobbin holder by the holding device; and

In the sixth process, after the fifth process, an empty bobbin is mounted on the bobbin holder.

10. The yarn winding machine according to any one of claims 1 to 9, characterized in that,

When a plurality of winding units in which empty bobbins have been mounted is determined by the unit determining unit, the automatic machine sequentially performs the winding start processing on each of the empty bobbins mounted in the plurality of winding units.

11. The yarn winding machine according to any one of claims 1 to 10, characterized in that,

Each of the plurality of winding units has a traverse guide that traverses the yarn, and a traverse drive section that independently drives the traverse guide.

12. The yarn winding machine according to any one of claims 1 to 11, characterized in that,

Each of the plurality of winding units has a winding drum that rotates a bobbin or a package, and a bobbin drive unit that independently drives the winding drum.

13. The yarn winding machine according to any one of claims 1 to 12, characterized in that,

The unit identification unit includes a first information acquisition unit that acquires first information on the color of an area including the bobbin mounted on the winding unit, and determines that the bobbin has been mounted based on the acquired first information. The above mentioned coiling unit for empty bobbins.

14. The yarn winding machine according to any one of claims 1 to 13, characterized in that,

The unit identification unit includes a second information acquisition unit that acquires second information related to the yarn layer thickness of the yarn wound on the bobbin installed in the winding unit, and based on the acquired The second information confirms that the above-mentioned winding unit with an empty bobbin has been installed.

15. The yarn winding machine according to any one of claims 1 to 14, characterized in that,

Each of the plurality of winding units has a winding drum that contacts the outer peripheral surface of the bobbin or package mounted on the winding unit to rotate the bobbin or package,

The unit identification unit includes a third information acquisition unit that acquires third information related to the rotational speed of the bobbin or the package, and determines the reel in which the empty bobbin has been mounted based on the acquired third information. unit.

16. The yarn winding machine according to any one of claims 1 to 15, characterized in that,

The above automaton is,

Has a warehouse to accommodate multiple empty bobbins,

For the winding unit that has not been determined by the unit determination unit, a bobbin setting process is performed to supply an empty bobbin from the warehouse and start winding the yarn,

The above-described bobbin setting process is not performed for the above-mentioned winding unit determined by the above-mentioned unit determination unit.

17. The yarn winding machine according to claim 16, characterized in that,

The above-mentioned automatic machine has regulations from when it issues a request related to the above-mentioned start winding process for the empty bobbin that has been installed in the above-mentioned winding unit determined by the above-mentioned unit determination unit, to after executing the above-mentioned start winding process. During this period, supply of empty bobbins from the bobbin stocker that stores a plurality of empty bobbins to the warehouse will not be accepted.

18. The yarn winding machine according to claim 17, characterized in that,

The above-mentioned automatic machine moves to the above-mentioned bobbin stocker and receives the empty tubes from the above-mentioned bobbin stocker to the above-mentioned warehouse when the conditions for starting the supply of empty bobbins are satisfied during the period other than the above-mentioned predetermined period. Pipe supply.

19. The yarn winding machine according to any one of claims 1 to 18, characterized in that,

The automatic machine does not perform a discharge process of discharging the mounted bobbin or package from the winding unit determined by the unit determining unit.

20. A yarn winding method using a yarn winding machine, the yarn winding machine having a plurality of winding units that perform a winding operation of winding the yarn on a bobbin to form a package; and an automatic machine arranged to be movable relative to a plurality of the above-mentioned winding units,

The above yarn winding method is characterized by including:

Determine the steps for the above-mentioned take-up unit;

The automatic machine performs a step of starting to wind the yarn onto the empty bobbin that has been installed in the determined winding unit; and

After the above-mentioned start of the winding process, the step of the above-mentioned winding operation is performed in the winding unit in a manner immediately following the above-mentioned start of the winding process.