JP2021001040A - Yarn winding system - Google Patents

Abstract

To provide a yarn winding system capable of feeding appropriate bobbins from a circulation conveying part in which yarn feeding bobbins and bobbins having no yarns wound thereon flow in mixture to a yarn winder and a fine spinning frame in a simple and inexpensive constitution.SOLUTION: A yarn winding system 1 includes a third conveyance part 53 conveying yarn feeding bobbins 11 and empty bobbins 13 in one direction in a mixed state. The third conveyance part 53 includes a first yarn amount detection part 71 for detecting the presence of contact with a feeler 71C disposed so as to come into contact with a yarn layer of a bobbin B, a second yarn amount detection part 73 for detecting the presence of capturing yarns Y2 with a residual yarn brush for capturing the yarns Y2 wound on an outer peripheral surface of the bobbin B, and a first branch part 53A carrying the bobbin B detected by at least one of the first yarn amount detection part 71 and the second yarn amount detection part 73 into a fourth conveyance part 54 and inhibiting the bobbin B which is not detected by both the first yarn amount detection part 71 and the second yarn amount detection part 73 from being carried into the fourth conveyance part 54.SELECTED DRAWING: Figure 2

Description

One aspect of the present invention relates to a bobbin winding system.

A yarn winder equipped with a plurality of spinning units for generating a yarn and winding the yarn around a bobbin to form a yarn feeding bobbin, and a plurality of winding units for unwinding the yarn from the yarn feeding bobbin and winding the yarn into a package. A yarn winding system equipped with a machine and a conveying device for transporting a used yarn feeding bobbin from a spinning machine to a spinning machine as well as a used yarn feeding bobbin is known. There is. An example of such a bobbin winding system is disclosed in Patent Document 1.

The thread winding system disclosed in Patent Document 1 is provided with a loop-shaped circulating transport unit (conveyor belt), and the transport belt includes a spinning machine (spinning machine) and a thread winder (thread winder). Each is connected to a circulation transport unit. Therefore, both the yarn feeding bobbin supplied from the spinning machine and the bobbin in which the yarn supplied from the spooling machine is not wound are conveyed to the circulation transporting unit.

Japanese Unexamined Patent Publication No. 6-191734

In a thread winding system having such a circulation transport unit, both the thread feeding bobbin and the bobbin in which the thread is not wound are taken into the thread winding machine and distinguished by a discriminating device equipped in the thread winding machine. Generally, only the yarn feeding bobbin is supplied to the winding unit, and the bobbin in which the yarn is not wound is returned to the circulation transport section again via the bypass path. However, in consideration of the overall transfer efficiency, it is preferable that the bobbin in which the yarn is not wound is not taken into the thread winder from the circulation transfer unit but is transferred to the spinning frame as it is.

Therefore, using the function of the electronic information carrier provided in each of the individual trays on which the bobbins are mounted, which is described in Patent Document 1, the bobbin to be fed and the bobbin in which the bobbin is not wound can be separated. It is conceivable to distinguish only the yarn feeding bobbin from the mixed and flowing transport portions and take it into the yarn winder. However, in this method, it is necessary to prepare a special tray, or a configuration for storing and managing the processing contents in the spinning frame and the spooling machine is required for each tray, so that the overall configuration is complicated. costly.

Therefore, one aspect of the present invention is to provide a bobbin suitable for a yarn winder and a spinning frame from a circulation transport portion in which a yarn feeding bobbin and a bobbin in which a yarn is not wound coexist and flow by a simple and inexpensive configuration. It is an object of the present invention to provide a yarn winding system that can be supplied.

The thread winding system according to one aspect of the present invention includes a spinning machine having a plurality of spinning units forming a bobbin in which the thread is wound, and a package in which the thread is wound from the bobbin in which the thread is wound. A bobbin having a plurality of winding units to be formed, and a bobbin in a state in which the thread is wound and a bobbin in a state in which the thread is not wound, which are connected to each of the spinning machine and the thread winding machine, are mixed. A transfer device that conveys the bobbin in which the thread is wound to the thread winder and the bobbin in which the thread is not wound to the spinning machine via a loop-shaped circulation transfer unit that conveys in one direction. The circulation transport unit has a contact portion provided so as to be in contact with the thread layer of the bobbin when the bobbin in which a predetermined amount of yarn is wound is located at the first position of the circulation transport unit. The first detection unit that detects the presence or absence of contact with the bobbin located at the first position and the bobbin located at the second position of the circulation transport unit are wound around the outer peripheral surface by moving along the outer peripheral surface. The second detection unit, the first detection unit, and the second detection unit, which have a capture unit capable of capturing the thread and detect the presence or absence of the thread capture after the capture operation on the bobbin located at the second position. The bobbins detected on at least one of the detection units are carried from the circulation transport unit into the transport path connected to the thread winder, and the bobbins not detected by both the first detection unit and the second detection unit are carried from the circulation transport unit. It has a distribution unit that is prohibited from being carried into the transport path.

In the circulation transport unit of the thread winding system having this configuration, the first detection unit distinguishes between bobbins in which the yarn is not wound or bobbins in which the yarn is wound but the amount is less than a predetermined amount. Then, the second detection unit distinguishes the bobbin in which the thread is not wound from these two types of bobbins. The distribution unit distributes the bobbin in which the thread is wound to the thread winder, and conveys the bobbin in which the thread is not wound to the circulation transfer unit as it is. In such a configuration, the amount of yarn wound on the bobbin does not need to be prepared as a special tray on which RFID or the like is mounted, or the processing contents of the spinning frame and the spooling machine are stored and managed for each tray. The state of can be accurately determined. As a result, an appropriate bobbin can be supplied to the bobbin winder and the spinning frame from the circulation transport section in which the bobbin for feeding the yarn and the bobbin in which the yarn is not wound coexist and flow due to the simple and inexpensive configuration.

In the thread winding system according to one aspect of the present invention, the second position is provided adjacent to the downstream side of the first position in the bobbin transport direction in the circulation transport section, and the first detection section is the first. The presence or absence of contact of the contact portion is detected for the bobbin passing through the position, and the second detection unit stops the bobbin whose contact is not detected by the contact portion at the second position and captures the stopped bobbin. The presence or absence of capture after the operation may be detected. In this configuration, only the bobbin in which the thread may not be wound around the bobbin is stopped at the second position, and the presence or absence of the thread being caught can be detected by the second detection unit. As a result, it is possible to avoid stopping all the bobbins at the second position, so that the possibility of a bottleneck of the circulation transport portion at the second position can be reduced.

In the thread winding system according to one aspect of the present invention, the transport device transports the bobbin mounted on the tray, and the circulation transport unit detects whether or not the bobbin is mounted on the tray. In addition to the bobbins detected by at least one of the first detection unit and the second detection unit, the distribution unit further transfers the tray in which the bobbins were not detected by the third detection unit from the circulation transport unit to the transport path. You may bring it in. In this configuration, the tray without the bobbin can be removed from the circulation transport section. As a result, the tray to which the bobbin is not mounted is not conveyed to the spinning frame again, so that the transfer efficiency in the circulation transfer section can be improved.

In the thread winding system according to one aspect of the present invention, a bobbin supply unit for mounting the bobbin on a tray on which the bobbin is not mounted may be further provided between the circulation transport section and the thread winder. This makes it possible to set the bobbin on the tray on which the bobbin is not mounted without human intervention.

In the thread winding system according to one aspect of the present invention, a bobbin in a state in which a predetermined amount of thread is not wound is detected between the circulation transport unit and the thread winding machine, and the thread wound around the bobbin is removed. A residual yarn processing unit may be further provided to form a bobbin in which the yarn is not wound. This configuration eliminates the need to manually remove defective bobbins that cannot be used with spoolers.

According to one aspect of the present invention, a bobbin suitable for a bobbin winder and a spinning frame can be provided from a circulation transport section in which a bobbin for feeding yarn and a bobbin in which no yarn is wound coexist and flows by a simple and inexpensive configuration. Can be supplied.

FIG. 1 is a front view of the bobbin winding system of one embodiment. FIG. 2 is a plan view of the spool winding system of FIG. FIG. 3 is a front view of the spinning unit of FIG. FIG. 4 is a front view of the automatic winder of FIG. 5 (A) is a perspective view of the tray, FIG. 5 (B) is a perspective view of an empty bobbin, and FIG. 5 (C) is a perspective view of a yarn feeding bobbin, FIG. 5 (D). Is a perspective view of the prepared thread feeding bobbin. FIG. 6 is an enlarged plan view of the fifth transport unit. FIG. 7 is a front view showing the first detection unit. FIG. 8A is a plan view showing the movement of the feeler when the empty bobbin passes through the first position, and FIG. 8B is a plan view of the feeler when the thread feeding bobbin passes through the first position. It is a top view which showed the movement. 9 (A) and 9 (B) are perspective views showing the movement of the residual thread brush when the bobbin on which the thread remains is located at the second position.

Hereinafter, one embodiment will be described with reference to the drawings. In the description of the drawings, the same elements are designated by the same reference numerals, and duplicate description will be omitted. Further, in the following description, as shown in FIG. 1, the front side when the thread winding system 1 is viewed from the front (Y-axis direction) is the front side, the rear side is the rear side, the left side is the left side, and the right side is the right side. Sometimes referred to. That is, the Y-axis direction may be referred to as a front-rear direction, the X-axis direction may be referred to as a left-right direction, and the Z-axis direction may be referred to as a vertical direction.

As shown in FIGS. 1 and 2, the thread winding system 1 includes three spinning frames 3, 3, 3 and one automatic winder (thread winding machine) 4, and a transfer device 5. There is. In the thread winding system 1 of the present embodiment, a larger number of spinning frames 3 than the number of automatic winders 4 are connected by a transfer device 5.

The spinning frame 3 produces a yarn Y2 from the blister yarn Y1 and winds the yarn Y2 around a bobbin B to form a yarn feeding bobbin 11 (see FIG. 5C). The crude yarn bobbin 10 used in the spinning machine 3 produces a crude yarn Y1 from a sliver, and winds the crude yarn Y1 around a bobbin B0 (see FIG. 3) to form a crude yarn bobbin 10 (shown in the figure). It is supplied from such as.

The spinning frame 3 includes a machine base control device 31 that controls the operation of the spinning frame 3 and a plurality of spinning units 32 that form the yarn feeding bobbin 11. The machine base control device 31 has a display unit 31a such as a display and an operation unit 31b such as an input key. The display unit 31a displays the operating status of each spinning unit 32 and the like. The operation unit 31b is a part in which the operator sets the operating conditions of each spinning unit 32 and the like.

As shown in FIG. 3, each of the plurality of spinning units 32 has a blister yarn supply unit 36, a draft device 33, and a twisting device 34. The plurality of spinning units 32 are arranged along one direction. In the spinning frame 3 of the present embodiment, a plurality of spinning units 32 are arranged in one direction on each of the front side and the rear side of the entire machine base.

The crude yarn supply unit 36 supports the crude yarn bobbin 10 in which the crude yarn Y1 is wound around the bobbin B0. The draft device 33 has a back roller pair 331, a middle roller pair 332, and a front roller pair 333. In the draft device 33, the back roller pair 331, the middle roller pair 332, and the front roller pair 333 are rotated at a predetermined speed ratio, so that the crude yarn Y1 unwound from the crude yarn bobbin 10 is drafted.

The back roller pair 331 has a bottom roller 331a and a top roller 331b, and is arranged so as to face each other with the traveling path of the coarse yarn Y1 interposed therebetween. A first drive motor 331c is connected to the bottom roller 331a via output shafts arranged over a plurality of spinning units (not shown). The middle roller pair 332 has a bottom roller 332a and a top roller 332b, and is arranged so as to face each other with the traveling path of the coarse yarn Y1 interposed therebetween. Apron belts are hung on the bottom roller 332a and the top roller 332b, respectively. A second drive motor 332c is connected to the bottom roller 332a via an output shaft arranged over a plurality of spinning units (not shown). The front roller pair 333 has a bottom roller 333a and a top roller 333b, and is arranged so as to face each other with the traveling path of the coarse yarn Y1 interposed therebetween. A third drive motor 333c is connected to the bottom roller 333a via an output shaft arranged over a plurality of spinning units (not shown).

Examples of the first drive motor 331c, the second drive motor 332c, and the third drive motor 333c are servomotors. Each of the first drive motor 331c, the second drive motor 332c, and the third drive motor 333c has a rotary encoder (not shown), and is independent of each other by the machine stand control device 31 via the servo motor drive circuit and the servo driver. Is controlled.

The twisting device 34 includes a spindle shaft 341, a ring rail 342, a ring 343, and a traveler 344. The spindle shaft 341 holds the bottom portion Ba of the bobbin B in a state where the top portion Bb of the bobbin B faces upward, and rotates the bobbin B. The ring rail 342 can move in the axial direction of the bobbin B. The ring 343 is fixed to the ring rail 342. The Traveler 344 is supported by the Ring 343 and is movable along the Ring 343.

In the twisting device 34, the rough yarn Y1 drafted in the drafting device 33 is inserted into the gap between the ring 343 and the traveler 344, and the end portion of the rough yarn Y1 is fixed to the bobbin B. In this state, when the spindle shaft 341 rotates the bobbin B, the traveler 344 moves along the ring 343 so as to be pulled by the coarse yarn Y1. At this time, the ring rail 342 gradually moves from the bottom portion Ba side to the top portion Bb side while reciprocating within a predetermined range along the axial direction of the bobbin B. In the twisting device 34, the rotation of the traveler 344 is delayed from the rotation of the bobbin B, so that the coarse yarn Y1 is twisted to generate the yarn Y2, and the yarn Y2 is wound around the bobbin B to form the yarn feeding bobbin 11. It is formed.

The spinning frame 3 having a plurality of spinning units 32 configured as described above is configured as a so-called simultaneous duffing type. That is, the spinning frame 3 stocks a plurality of empty bobbins 13 conveyed from the automatic winder 4 by the conveying device 5, sets the empty bobbins 13 in each spinning unit 32 all at once, and winds the yarn all at once. To start. When the winding of the yarn is completed in each spinning unit 32 and the yarn feeding bobbin 11 is formed, the spinning machine 3 simultaneously lifts (doffing) all the yarn feeding bobbins 11. Then, the spinning machine 3 pulls out the empty bobbins 13 stocked in the meantime from the tray 9 (detailed in the latter stage) and sets them in the spinning units 32 all at once. Instead, the spinning bobbins are deep-fried. 11 are set in the tray 9 all at once.

The automatic winder 4 winds the yarn Y2 from the yarn feeding bobbin 11 to form the package 15. As shown in FIGS. 1 and 2, the automatic winder 4 includes a machine stand control device 41 for controlling the operation of the automatic winder 4 and a plurality of winder units (winding units) 42 forming the package 15. ing.

The machine base control device 41 has a display unit 41a such as a display and an operation unit 41b such as an input key. The display unit 41a displays the operating status of each winder unit 42 and the like. The operation unit 41b is a part in which the operator sets the operating conditions of each winder unit 42 and the like. The machine base control device 41 has a transport control unit 41c that controls the operation of the transport device 5, which will be described in detail later.

The transport control unit 41c is an electronic control unit including a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), an I / O port, a communication port, and the like. A program for controlling each part is recorded in the ROM. Further, each function in the transport operation described in detail later is executed under the control of the CPU by loading predetermined computer software on the hardware such as the CPU and the main storage unit.

As shown in FIG. 4, each of the plurality of winder units 42 includes a winding device 43, a tension applying device 44, a thread monitoring device 45, a needle thread catching device 46, a bobbin thread catching device 47, and a thread. It has a joint device 48 and a unit control unit 49.

The take-up device 43 has a cradle 43a and a take-up drum 43b. The cradle 43a supports the package 15. The take-up drum 43b rotates the package 15 while traversing the thread Y2. As a result, the yarn Y2 is wound from the yarn feeding bobbin 11 set at a predetermined position to form the package 15. The tension applying device 44 applies a predetermined tension to the thread Y2 running from the thread feeding bobbin 11 to the package 15.

The thread monitoring device 45 monitors the traveling thread Y2 in order to detect a thread defect (an abnormality in the thickness of the thread Y2, a foreign substance mixed in the thread Y2, etc.). When a thread defect is detected, the thread Y2 is cut by a cutter provided separately. When the thread Y2 is cut, the needle thread capturing device 46 captures the thread end of the thread Y2 on the package 15 side and guides the thread Y2 to the thread joining device 48. When the thread Y2 is cut, the bobbin thread capturing device 47 captures the thread end of the thread Y2 on the thread feeding bobbin 11 side and guides the thread Y2 to the thread joining device 48. The thread splicing device 48 connects the thread ends guided by the needle thread catching device 46 and the bobbin thread catching device 47.

The unit control unit 49 controls the operations of the winding device 43, the tension applying device 44, the thread monitoring device 45, the needle thread catching device 46, the bobbin thread catching device 47, the thread splicing device 48, and the like in the winder unit 42. For example, the unit control unit 49 cuts the thick thread portion of the thread feeding bobbin 11 based on the information acquired by the thread monitoring device 45, and sets the thread end of the thread Y2 on the thread feeding bobbin 11 side that has been cut. The thread splicing device 48 is controlled so as to connect the thread end of the thread Y2 on the package 15 side.

The transport device 5 transports the yarn feeding bobbins 11 formed in each of the three spinning frames 3, 3 and 3 to one automatic winder 4, and the used feeding used in the one automatic winder 4. The empty bobbin 13 which is the thread bobbin 11 is conveyed to each of the spinning frames 3, 3 and 3. The empty bobbin 13 referred to here is a bobbin B in which the thread Y2 is not wound, and a predetermined amount of thread Y2 so as to be supplied from the spinning machine 3 although the thread Y2 is wound around the bobbin B. This includes a bobbin (hereinafter, referred to as “defective bobbin”) in which the winding amount is smaller than that of the bobbin B (full-tube feeding bobbin 11) in which the bobbin is wound.

The transport device 5 transports each of the thread feeding bobbin 11 and the empty bobbin 13 in a state of being mounted on the tray 9 as shown in FIG. 5 (A). The tray 9 has a disc-shaped base portion 91, a protruding portion 92 protruding upward from the base portion 91, and a pin 93 protruding further upward from the protruding portion 92. The thread feeding bobbin 11 shown in FIG. 5 (C) (including the prepared thread feeding bobbin 11 shown in FIG. 5 (D)) and the empty bobbin 13 shown in FIG. 5 (B) are bobbins B, respectively. By inserting the pin 93 into the bottom portion Ba, the bobbin B is mounted on the tray 9 with one end thereof facing upward. In other words, the tray 9 is configured to be mounted in an upright state in which the axial direction of the bobbin B is the vertical direction.

As shown in FIG. 2, the transport device 5 is composed of a plurality of transport units (first transport unit 51 to ninth transport unit 59) as shown in the subsequent stage. Each of the plurality of transport portions 51 to 59 has a guide groove formed by a guide plate, a conveyor belt or a round belt provided below the guide groove along the guide groove, and a drive device for driving the conveyor belt or the round belt. It is possible to appropriately configure a known configuration including the above. The trays 9 are arranged in the guide grooves so that the transport units 51 to 59 transport the tray 9 on which the thread feeding bobbin 11 and the empty bobbin 13 are mounted.

Next, the yarn feeding bobbin 11 formed in the spinning frame 3 is conveyed to the automatic winder 4, and the empty bobbin 13 which is the used yarn feeding bobbin 11 used in the automatic winder 4 is conveyed to the spinning frame 3. Will be described. Such a transport unit is a first transport unit 51, a second transport unit 52, a third transport unit (circulation transport unit) 53, along the transport direction of the yarn feeding bobbin 11 from the spinning frame 3 to the automatic winder 4. The fourth transport section (convey path connected to the thread winder) 54, the fifth transport section 55, and the sixth transport section 56 are arranged in this order. Further, the transport units are in the order of the seventh transport unit 57, the fifth transport unit 55, the eighth transport unit 58, and the ninth transport unit 59 along the transport direction of the empty bobbin 13 from the automatic winder 4 to the spinning frame 3. It is arranged in. Hereinafter, each of the first transport unit 51 to the ninth transport unit 59 will be described.

The first transport section 51 is formed in a U shape with the machine stand inlet and the machine stand outlet arranged on the left side of the machine stand of the spinning frame 3 as both ends of the transport section. Further, the first transport unit 51 is provided below the spinning units 32 arranged on the front side and the rear side of the machine base of the spinning machine 3. The first transport unit 51 carries out the yarn feeding bobbin 11 supplied to the first transport unit 51 toward the automatic winder 4 in the simultaneous duffing of the spinning units 32 arranged in the spinning machine 3, and also carries out from the automatic winder 4. The supplied empty bobbin 13 is carried into the lower part of the spinning unit 32 of the spinning frame 3.

The second transport unit 52 is provided between the machine base outlet of the spinning frame 3 and the third transport unit 53 formed in a loop shape. The second transport unit 52 transports the yarn feeding bobbin 11 carried out from the spinning frame 3 to the second confluence portion 53D, which is a connection portion with the third transport unit 53.

The third transport unit 53 transports the thread feeding bobbin (bobbin in which the thread Y2 is wound) 11 and the empty bobbin (bobbin in which the thread is not wound) 13 in a mixed state in one direction. The third transport unit 53 is formed in a loop shape. The third transport section 53 has a first branch section (distribution section) 53A, a first merging section 53B, a second branch section 53C, and a second merging section 53D. Further, along the transport path of the third transport unit 53, a first yarn amount detection unit (first detection unit) 71, a first sensor 72, a second yarn amount detection unit (second detection unit) 73, and so on. A second sensor 74, a third sensor (third detection unit) 75, a fourth sensor 76, a fifth sensor 77, a sixth sensor 78, and a seventh sensor 79 are provided.

The first branch portion 53A is a portion branched from the third transport unit 53 to the fourth transport unit 54, which is a transport path to the automatic winder 4. The first branch portion 53A sorts the tray 9 on which the yarn feeding bobbin 11 (including the defective bobbin) is mounted and the tray 9 on which the bobbin B is not mounted from the third transport portion 53 to the fourth transport portion 54. The first branch portion 53A of the present embodiment carries the bobbin B detected by at least one of the first yarn amount detection unit 71 and the second yarn amount detection unit 73 from the third transfer unit 53 to the fourth transfer unit 54. , The empty bobbin 13, which is the bobbin B not detected by both the first yarn amount detection unit 71 and the second yarn amount detection unit 73, is prohibited from being carried from the third transfer unit 53 to the fourth transfer unit 54. ..

The first merging section 53B is a portion that joins the eighth transport section 58, which is a transport path from the automatic winder 4, to the third transport section 53. The first merging section 53B merges the empty bobbin 13 supplied to the spinning frame 3 from the eighth transport section 58 to the third transport section 53. The second branch portion 53C is a portion branched from the third transport unit 53 to the ninth transport unit 59, which is a transport path to the spinning frame 3. The second branch portion 53C distributes the empty bobbin 13 from the third transport unit 53 to the ninth transport unit 59. The second merging section 53D is a portion that joins the second transport section 52, which is a transport path from the spinning frame 3, with the third transport section 53. The second merging section 53D joins the yarn feeding bobbin 11 supplied to the automatic winder 4 from the second transport section 52 to the third transport section 53.

The first yarn amount detecting unit 71 detects whether or not a predetermined amount of yarn Y2 is wound around the bobbin B. As shown in FIGS. 7, 8 (A) and 8 (B), the first yarn amount detecting unit 71 includes a support shaft 71A, a rotation shaft 71B, and a feeler (contact portion) 71C. .. The support shaft 71A is a round bar-shaped member arranged in the vertical direction, and is supported by a base member constituting the third transport portion 53. The rotation shaft 71B is extrapolated to the support shaft 71A and is rotatably provided on the support shaft 71A. The feeler 71C is a rod-shaped member provided on the rotating shaft 71B so as to protrude from the rotating shaft 71B, and is a contact detection unit bent upward along the longitudinal direction of the thread feeding bobbin 11 or the empty bobbin 13. have. The contact detection unit is formed to have a constant length in the vertical direction.

The feeler 71C is formed to have a constant length in the vertical direction. A spring (not shown) is attached to the rotating shaft 71B to urge the feeler 71C in a direction of approaching the thread feeding bobbin 11 or the empty bobbin 13. The rotating shaft 71B is provided with a stopper (not shown), and the feeler 71C is provided at a position forming a slight gap with respect to the surface of the bobbin B of the thread feeding bobbin 11 or the empty bobbin 13 conveyed to the first position P1. The rotating shaft 71B, which is rotated by the urging force of the spring, is regulated so that

The first yarn amount detecting unit 71 includes a sensor (not shown) capable of detecting the rotation of the rotating shaft 71B. As a result, when the amount of yarn (remaining yarn amount) wound around the bobbin B is equal to or more than a predetermined amount, the feeler 71C is pushed by the yarn layer of the remaining yarn while the bobbin B is being conveyed, and the rotation shaft is rotated. The 71B rotates in a direction that opposes the urging force of the spring, and this rotation is detected by the above-mentioned sensor. That is, the presence or absence of contact of the feeler 71C with the bobbin B is detected by the first yarn amount detecting unit 71.

The first sensor 72 detects whether or not the tray 9 (bobbin B) is located at the first position P1 in the third transport unit 53.

The second yarn amount detecting unit 73 detects that the yarn Y2 is not wound around the bobbin B. As shown in FIGS. 9A and 9B, the second yarn amount detecting unit 73 includes an operating unit 73A, a support shaft 73B, and a residual thread brush (capturing unit) 73C. The operating unit 73A moves the support shaft 73B and the residual thread brush 73C along the outer peripheral surface of the bobbin B by driving by a driving unit (not shown) (capture operation). The second thread amount detecting unit 73 detects the rotation position of the residual thread brush 73C that is rotated along the outer peripheral surface of the bobbin B, and the thread Y2 is wound around the bobbin B from the detected rotation position. Judge whether or not.

The second thread amount detecting unit 73 executes a capturing operation of moving the remaining thread brush 73C along the outer peripheral surface of the bobbin B with respect to the bobbin B located at the second position P2 in the third transport unit 53. When the residual thread brush 73C is not caught on the thread as a result of executing the above-mentioned capturing operation, the second thread amount detecting unit 73 does not wind the thread Y2 on the bobbin B, that is, the empty bobbin 13. Judge. On the other hand, when the residual thread brush 73C is caught by the thread Y2 as a result of executing the above-mentioned capturing operation, the second thread amount detecting unit 73 winds the thread Y2 around the bobbin B, that is, at least the empty bobbin 13. Judge that it is not.

Returning to FIG. 2, the second sensor 74 detects whether or not the tray 9 (bobbin B) is located at the second position P2 in the third transport unit 53. The third sensor 75 detects whether or not the bobbin B is mounted (mounted) on the tray 9. The third sensor 75 constantly detects (monitors) whether or not the bobbin B is attached to the conveyed tray 9.

The fourth sensor 76 detects whether or not the tray 9 (bobbin B) is located at the first branch portion 53A of the third transport portion 53. The fifth sensor 77 detects whether or not the tray 9 (bobbin B) is located on the downstream side in the transport direction adjacent to the first confluence portion 53B. The sixth sensor 78 detects whether or not the tray 9 (bobbin B) is located at the second branch portion 53C of the third transport portion 53. The seventh sensor 79 detects whether or not the tray 9 (bobbin B) is located on the downstream side in the transport direction adjacent to the second merging portion 53D.

The fourth transport unit 54 is provided between the third transport unit 53 and the fifth transport unit 55. The fourth transport section 54 connects the first branch section 35A of the third transport section 53 and the first merging section 55C of the fifth transport section 55, and the yarn feeding bobbin 11 distributed by the first branch section 35A. Is transported to the fifth transport unit 55.

The fifth transport unit 55 is provided between the fourth transport unit 54 and the sixth transport unit 56. The fifth transport unit 55 is a loop-shaped transport path, and transports the yarn feeding bobbin 11 carried in from the third transport unit 53 and the empty bobbin 13 carried in from the seventh transport unit 57. The fifth transport section 55 carries the yarn feeding bobbin 11 carried in from the third transport section 53 through the fourth transport section 54 into the automatic winder 4, and also carries in from the automatic winder 4 via the seventh transport section 57. The empty bobbin 13 is transported to the third transport unit 53 via the eighth transport unit 58.

The fifth transport portion 55 includes a loop-shaped transport portion 55A, a first confluence portion 55C, a first branch portion 55D, a second confluence portion 55E, and a second branch portion 55F. The loop-shaped transport portion 55A transports the yarn feeding bobbin 11 and the empty bobbin 13. The first merging section 55C is a portion that joins the fourth transport section 54, which is a transport path from the third transport section 53 to the automatic winder 4, with the transport section 55A. The first branching portion 55D is a portion branched from the conveying portion 55A to the sixth conveying portion 56 which is a conveying path to the spinning frame 3. The second merging portion 55E is a portion that merges the seventh conveying portion 57, which is a conveying path from the spinning frame 3, with the conveying portion 55A. The second branch portion 55F is a portion branched to the eighth transport portion 58, which is a transport path from the transport unit 55A to the third transport unit 53.

Further, along the transport path of the transport unit 55A, a third thread amount detection unit 61, a mouthing device 62, a fourth thread amount detection unit 64, a fifth thread amount detection unit 66, and a sixth thread amount detection unit 67 and a residual yarn processing device (residual yarn processing unit / bobbin supply unit) 68 are provided.

Similar to the first yarn amount detecting unit 71, the third yarn amount detecting unit 61 detects whether or not a predetermined amount of yarn is wound around the bobbin B. The configuration of the third yarn amount detecting unit 61 has the same configuration as that of the first yarn amount detecting unit 71 shown in FIGS. 7, 8 (A) and 8 (B). Here, detailed description will be omitted.

The mouthing device 62 pulls out the thread end Y21 of the thread Y2 with respect to the thread feeding bobbin 11 conveyed to the automatic winder 4. Further, the knotting device 62 performs a process of inserting the thread end Y21 drawn out from the thread feeding bobbin 11 from the top portion Bb of the bobbin B into the inner Bc of the bobbin B (knotting process), and is shown in FIG. The prepared thread feeding bobbin 11 is formed so as to be used. As a result, the bobbin thread catching device 47 can catch the thread end Y21 of the thread feeding bobbin 11 in each of the winder units 42 of the automatic winder 4. In the present embodiment, the bobbin determined to be the yarn feeding bobbin 11 by the third yarn amount detecting unit 61 is subjected to the mouth-out processing.

The fourth thread amount detecting unit 64 detects that the thread Y2 is not wound around the bobbin B, similarly to the second thread amount detecting unit 73. The configuration of the fourth yarn amount detecting unit 64 has the same configuration as that of the second yarn amount detecting unit 73 shown in FIGS. 9A and 9B. Here, detailed description will be omitted.

Like the first yarn amount detection unit 71, the fifth yarn amount detection unit 66 detects whether or not a predetermined amount of yarn Y2 is wound around the bobbin B. The configuration of the third yarn amount detecting unit 61 has the same configuration as that of the first yarn amount detecting unit 71 shown in FIGS. 7, 8 (A) and 8 (B). Here, detailed description will be omitted.

The sixth thread amount detecting unit 67 detects that the thread Y2 is not wound around the bobbin B, similarly to the second thread amount detecting unit 73. The configuration of the fourth yarn amount detecting unit 64 has the same configuration as that of the second yarn amount detecting unit 73 shown in FIGS. 9A and 9B. Here, detailed description will be omitted.

The residual thread processing device 68 grips and pulls out the thread Y2 wound around the bobbin B by a clamper (not shown) to obtain the bobbin B in a state where the thread Y2 is not wound. The extracted thread Y2 is disposed of. The residual yarn processing device 68 is a defective bobbin in which the amount of yarn wound around the bobbin B by the fifth yarn amount detecting unit 66 described above is less than or equal to a predetermined amount, that is, it is determined that a small amount of yarn Y2 remains. The thread Y2 is pulled out only when it is determined to be present. Further, when the residual yarn processing device 68 detects that the bobbin B is not mounted on the tray 9 by a sensor (not shown), the bobbin B is mounted on the tray 9. The residual yarn processing device 68 may have a configuration in which the yarn Y2 is replaced with a bobbin B in a state in which the yarn Y2 is not wound, instead of the configuration in which the yarn Y2 is extracted.

The sixth transport unit 56 is provided on the rear side of the machine base of the automatic winder 4 along the arrangement direction of the winder units 42. The sixth transport unit 56 conveys the yarn feeding bobbin 11 from the machine stand entrance of the automatic winder 4 to the rear side of the machine stand and below each of the winder units 42.

The seventh transport unit 57 is provided on the front side of the machine base of the automatic winder 4 along the arrangement direction of the winder units 42. The seventh transport unit 57 transports the empty bobbin 13 from below each of the winder units 42, passes through the front side of the machine stand, and reaches the machine stand outlet of the automatic winder 4.

The eighth transport unit 58 is provided between the fifth transport unit 55 and the third transport unit 53. The eighth transport section 58 connects the second branch section 55F of the fifth transport section 55 and the first confluence section 35B of the third transport section 53, and provides an empty bobbin 13 distributed by the second branch section 55F. It is transported to the fifth transport unit 55.

Next, the bobbin B transfer operation in the third transfer section 53 will be described. As described above, these transfer operations are controlled by the transfer control unit 41c included in the machine base control device 41.

As shown in FIG. 2, the tray 9 on which the bobbin B transported by the third transport unit 53 is mounted is transported to the first position P1. The arrival of the tray 9 at the first position P1 is detected by the first sensor 72. At the same time as the first sensor 72 detects the tray 9, the transport control unit 41c confirms whether or not the feeler 71C is in contact with the first yarn amount detecting unit 71.

Here, when the contact by the feeler 71C is detected, the transport control unit 41c determines that the bobbin 11 is a yarn feeding bobbin 11 in which a predetermined amount of yarn Y2 is wound around the bobbin B. Next, the tray 9 on which the thread feeding bobbin 11 is mounted is conveyed to the second position P2. The arrival of the tray 9 at the second position P2 is detected by the second sensor 74. The tray 9 on which the bobbin B determined to be the thread feeding bobbin 11 is mounted is passed through the second position P2 without stopping and is conveyed to the first branch portion 53A. In the tray 9 on which the thread feeding bobbin 11 is mounted, the third sensor 75 detects that the bobbin B is mounted on the tray 9.

It is detected by the fourth sensor 76 that the tray 9 on which the thread feeding bobbin 11 is mounted has arrived at the first branch portion 53A. The transport control unit 41c controls the first branch portion 53A so as to distribute the tray 9 on which the bobbin B on which the contact by the first yarn amount detection unit 71 is detected is mounted to the fourth transport unit 54. As a result, the yarn feeding bobbin 11 is conveyed to the fourth conveying section 54.

On the other hand, when the contact by the feeler 71C is not detected, the transport control unit 41c determines that the bobbin B is an empty bobbin 13 (including a defective bobbin) in which a predetermined amount of thread Y2 is not wound. Next, the tray 9 on which the empty bobbin 13 is mounted is conveyed to the second position P2. The arrival of the tray 9 at the second position P2 is detected by the second sensor 74. The transport control unit 41c stops the tray 9 on which the bobbin B determined to be an empty bobbin 13 is mounted at the second position P2, and executes the capturing operation of the second thread amount detecting unit 73.

Here, when the catch of the thread Y2 by the residual thread brush 73C is detected, the transport control unit 41c determines that the bobbin B is a defective bobbin in which less than a predetermined amount of thread Y2 is wound. The tray 9 on which the defective bobbin is mounted is conveyed to the first branch portion 53A. In the tray 9 on which the defective bobbin is mounted, the third sensor 75 detects that the bobbin B is mounted on the tray 9.

It is detected by the fourth sensor 76 that the tray 9 on which the defective bobbin is mounted has arrived at the first branch portion 53A. The transport control unit 41c controls the first branch portion 53A so that the tray 9 on which the bobbin B in which the second yarn amount detection unit 73 has detected the catch of the yarn Y2 is distributed to the fourth transport unit 54. As a result, the defective bobbin is transported to the fourth transport unit 54.

On the other hand, when the catch of the thread Y2 by the residual thread brush 73C is not detected, the transport control unit 41c determines that the bobbin 13 is an empty bobbin 13 in which the thread Y2 is not wound at all on the bobbin B. The tray 9 on which the empty bobbin 13 is mounted is conveyed to the first branch portion 53A. In the tray 9 on which the empty bobbin 13 is mounted, the third sensor 75 detects that the bobbin B is mounted on the tray 9.

It is detected by the fourth sensor 76 that the tray 9 on which the empty bobbin 13 is mounted has arrived at the first branch portion 53A. In the transport control unit 41c, the tray 9 on which the bobbin B whose catch of the yarn Y2 is not detected by the second yarn amount detection unit 73 is not distributed to the fourth transport unit 54 (as it is by the third transport unit 53). The first branch 53A is controlled (to convey). As a result, the empty bobbin 13 is conveyed in the direction of the spinning frame 3 by the third transfer unit 53.

When the tray 9 on which the empty bobbin 13 is mounted is transported to the second branch portion 53C by the third transport unit 53, the tray 9 is detected by the sixth sensor 78. The transport control unit 41c confirms the detection status of the sensor 59A that detects the congestion state of the empty bobbin 13 in the ninth transport unit 59 installed in the ninth transport unit 59. If the transport control unit 41c does not confirm the detection by the sensor 59A, the transport control unit 41c distributes the empty bobbin 13 arriving at the second branch unit 53C to the ninth transport unit 59. When the transfer control unit 41c confirms the detection by the sensor 59A, the transfer control unit 41c does not distribute the empty bobbin 13 arriving at the second branch unit 53C to the ninth transfer unit 59, but transfers it to the spinning frame 3 in the downstream portion.

Next, the bobbin B transport operation in the fifth transport unit 55 will be described. As described above, these transfer operations are also controlled by the transfer control unit 41c included in the machine base control device 41.

As shown in FIG. 6, in the above description, the tray 9 on which the bobbin B sorted by the first branching portion 53A and conveyed by the fourth conveying portion 54 is mounted has the first merging portion 55C and the conveying portion 55A. Is conveyed to the third yarn amount detecting unit 61. The arrival of the tray 9 at the third yarn amount detecting unit 61 is detected by a sensor (not shown). At the same time as the sensor detects the tray 9, the transport control unit 41c confirms whether or not the feeler 71C is in contact with the third yarn amount detection unit 61.

Here, when the contact by the feeler 71C is detected, the transport control unit 41c determines that the bobbin 11 is a yarn feeding bobbin 11 in which a predetermined amount of yarn Y2 is wound around the bobbin B. Next, the tray 9 on which the thread feeding bobbin 11 is mounted is conveyed to the mouthing device 62, and the mouthing process is performed. Then, the yarn feeding bobbin 11 that has been subjected to the mouth-out processing is conveyed to the first branch portion 55D by the conveying portion 55A. The transport control unit 41c controls the first branch portion 55D so that the tray 9 on which the yarn feeding bobbin 11 is mounted is distributed to the sixth transport unit 56. As a result, the yarn feeding bobbin 11 is conveyed to the automatic winder 4 via the sixth conveying section 56.

On the other hand, when the contact by the feeler 71C is not detected, the transport control unit 41c determines that the bobbin B is an empty bobbin 13 (including a defective bobbin) in which a predetermined amount of thread Y2 is not wound. Next, the tray 9 on which the empty bobbin 13 is mounted is conveyed to the mouth-out device 62, but the mouth-out processing is not executed and is passed through. Then, the empty bobbin 13 is transported to the first branch portion 55D by the transport unit 55A. The transport control unit 41c transports the transport unit 55A as it is without distributing the tray 9 on which the empty bobbin 13 is mounted to the sixth transport unit 56.

Next, the transport operation in the fourth yarn amount detecting unit 64 will be described. The tray 9 on which the bobbin B is mounted is conveyed to the fourth yarn amount detecting unit 64 by the conveying unit 55A. The arrival of the tray 9 on the fourth yarn amount detecting unit 64 is detected by a sensor (not shown). When the sensor detects the tray 9, the transport control unit 41c stops the transport of the tray 9 and causes the fourth yarn amount detection unit 64 to execute the capture operation.

Here, when the fourth thread amount detecting unit 64 does not detect the capture of the thread Y2 by the residual thread brush 73C, the transport control unit 41c is an empty bobbin 13 in which the thread Y2 is not wound on the bobbin B at all. It is determined that there is, and the second branch portion 55F is controlled so as to distribute to the eighth transport portion 58. As a result, the empty bobbin 13 is transported to the spinning frame 3 via the eighth transport unit 58 and the third transport unit 53. When the transport control unit 41c joins the empty bobbin 13 from the eighth transport unit 58 to the third transport unit 53, the transport control unit 41c confirms the detection status of the fifth sensor 77, and sets the empty bobbin 13 at a timing when the fifth sensor 77 does not detect it. Merge.

On the other hand, when the fourth thread amount detecting unit 64 detects that the thread Y2 is captured by the residual thread brush 73C, the transport control unit 41c determines that the bobbin B has the thread Y2 wound around the bobbin B. .. The transport control unit 41c transports the transport unit 55A as it is without distributing the tray 9 on which the bobbin B is mounted to the sixth transport unit 56.

Next, the transport operation in the fifth yarn amount detection unit 66 will be described. As described above, the tray 9 on which the bobbin B whose catch of the thread Y2 by the residual thread brush 73C is detected by the fourth thread amount detecting unit 64 is mounted on the fifth thread amount detecting unit 66 by the conveying unit 55A. Be transported. The arrival of the tray 9 at the fifth yarn amount detecting unit 66 is detected by a sensor (not shown). At the same time as the transfer control unit 41c detects the tray 9 by the sensor, the transfer control unit 41c confirms whether or not the feeler 71C is in contact with the fifth yarn amount detection unit 66.

Here, when the contact by the feeler 71C is detected, the transport control unit 41c determines that the bobbin 11 is a yarn feeding bobbin 11 in which a predetermined amount of yarn Y2 is wound around the bobbin B. Next, the tray 9 on which the thread feeding bobbin 11 is mounted is passed through the sixth thread amount detecting unit 67 and the residual thread processing device 68 by the conveying unit 55A, and is conveyed to the third thread amount detecting unit 61. To. The transport operation after arriving at the third yarn amount detection unit 61 is as described above.

On the other hand, when the contact by the feeler 71C is not detected, the transport control unit 41c determines that the bobbin B is an empty bobbin 13 (including a defective bobbin) in which a predetermined amount of thread Y2 is not wound. Next, the tray 9 on which the empty bobbin 13 is mounted is conveyed to the sixth yarn amount detecting unit 67. The arrival of the tray 9 at the sixth yarn amount detecting unit 67 is detected by a sensor (not shown). The transport control unit 41c stops the tray 9 on which the bobbin B determined to be an empty bobbin 13 is mounted at the sixth thread amount detection unit 67, and captures the residual thread brush 73C in the sixth thread amount detection unit 67. Perform the operation.

Here, when the catch of the thread Y2 by the residual thread brush 73C is detected, the transport control unit 41c determines that the bobbin B is a defective bobbin in which less than a predetermined amount of thread Y2 is wound. The tray 9 on which the defective bobbin is mounted is conveyed to the residual yarn processing device 68. The residual thread processing device 68 grips and pulls out the thread Y2 wound around the defective bobbin by a clamper (not shown). That is, in the residual yarn processing device 68, the empty bobbin 13 is formed from the defective bobbin. The empty bobbin 13 is conveyed to the third yarn amount detection unit 61. The transport operation after arriving at the third yarn amount detection unit 61 is as described above. In the residual thread processing device 68, when it is detected by a sensor (not shown) that the bobbin B is not attached to the tray 9, the bobbin B to which the thread Y2 is not wound is attached.

The operation and effect of the bobbin winding system 1 of the above embodiment will be described. In the third transfer unit 53 of the thread winding system 1 of the above embodiment, the bobbin B in the state where the thread Y2 is not wound or the thread Y2 is wound in a predetermined amount by the first thread amount detecting unit 71. The bobbins B that do not meet are distinguished. Then, the second thread amount detecting unit 73 distinguishes the bobbin B in which the thread Y2 is not wound from these two types of bobbins B. The first branch 53A distributes the bobbin B in which the thread Y2 is wound to the automatic winder 4, and conveys the bobbin B (that is, the empty bobbin 13) in which the thread Y2 is not wound to the third transfer unit 53 as it is. Let me. In such a configuration, the bobbin B is wound without preparing a special tray 9 on which RFID or the like is mounted or storing and managing the processing contents of the spinning frame 3 and the automatic winder 4 for each tray 9. It is possible to accurately determine the state of the amount of thread that has been struck. As a result, the bobbin B suitable for the automatic winder 4 and the spinning frame 3 is flown from the third transport section 53 in which the yarn feeding bobbin 11 and the bobbin B in which the yarn Y2 is not wound are mixed and flowed by a simple and inexpensive configuration. Can be supplied.

In the thread winding system 1 of the above embodiment, only the bobbin B whose contact is not detected by the feeler 71C of the first thread amount detecting unit 71 is stopped at the second position P2, and the second thread is stopped with respect to the stopped bobbin B. The presence or absence of catching of the thread Y2 by the amount detecting unit 73 is detected. In this configuration, it is possible to avoid stopping all the bobbins B at the second position P2, so that the possibility of a bottleneck of the third transport unit 53 at the second position P2 can be reduced.

Since the thread winding system 1 of the above embodiment includes the third sensor 75 that detects whether or not the bobbin B is mounted on the tray 9, the tray 9 on which the bobbin B is not mounted is removed from the third transport unit 53. be able to. As a result, the tray 9 to which the bobbin B is not mounted is not transported to the spinning frame 3 again, so that the transport efficiency in the third transport unit 53 can be improved.

In the thread winding system 1 of the above embodiment, the bobbin B is mounted on the tray 9 on which the bobbin B is not mounted on the fifth transport section 55 between the third transport section 53 and the automatic winder 4, and as a defective bobbin. A residual yarn processing device 68 is provided for removing the yarn Y2 wound around the bobbin B to form the bobbin B in a state where the yarn Y2 is not wound. As a result, the bobbin B can be set on the tray 9 on which the bobbin B is not mounted without human intervention, and the defective bobbin that cannot be used in the automatic winder 4 can be set by human hands. No need to remove through. Further, in the present embodiment, the residual yarn processing device 68 is arranged not in the third transport unit 53 but in the transport unit separated from the third transport unit 53. Therefore, the possibility of a bottleneck occurring in the third transport unit 53 can be reduced, and the transport efficiency can be improved.

Although one embodiment of the present invention has been described above, one aspect of the present invention is not limited to the above embodiment.

In the above embodiment, an example in which one automatic winder 4 and three spinning frames 3, 3 and 3 are connected to the third transport unit 53 has been described, but the number of these is not limited. Further, the number of automatic winders 4 connected to the third transport unit 53 may be larger than the number of spinning frames 3.

In the above embodiment, an example in which the feeler 71C formed as an example of the contact portion is formed in an L shape has been described, but the present invention is not limited to this. The contact portion is any member as long as the bobbin B in which a predetermined amount of yarn Y2 is wound is provided so as to be in contact with the yarn layer of the bobbin B when it is located at the first position P1 of the third transport portion 53. It may have such a shape. Further, in the above embodiment, the example in which one feeler 71C is provided has been described, but a plurality of feelers 71C may be provided along the axial direction of the bobbin B. That is, a plurality of feelers may be provided so as to come into contact with each other at different positions in the axial direction of the bobbin B.

The transfer path and the third thread amount detection unit 61, the mouthing device 62, the fourth thread amount detection unit 64, the fifth thread amount detection unit 66, the sixth thread amount detection unit 67, and the fifth thread amount detection unit 67 in the fifth transfer unit 55 of the above embodiment. The arrangement position of the residual yarn processing device 68 is not limited to the above embodiment. Further, the residual thread processing device 68 has only one of a function of forming (or replacing) an empty bobbin 13 from a defective bobbin and a function of mounting a bobbin B on which the thread Y2 is not wound on a tray 9 on which the bobbin B is not mounted. May have. Further, instead of forming (or replacing) the empty bobbin 13 from the defective bobbin, the bobbin B in the same state as the thread feeding bobbin 11 may be mounted.

At least a part of the above-described embodiments and modifications can be arbitrarily combined.

1 ... Thread winding system, 3 ... Spinning machine, 4 ... Automatic winder (thread winding machine), 5 ... Transfer device, 9 ... Tray, 11 ... Thread feeding bobbin, 13 ... Empty bobbin, 53 ... Third transfer section (circulation transfer) Section), 53A ... 1st branch section (distribution section), 54 ... 4th transport section (transport path connected to the yarn winder), 68 ... Residual yarn processing device (residual yarn processing section / bobbin supply section), 71 ... First thread amount detection unit (first detection unit), 71C ... Feeler (contact part), 73 ... Second thread amount detection unit (second detection unit), 73C ... Residual thread brush (capture unit), B ... Bobbin, P1 ... 1st position, P2 ... 2nd position, Y2 ... Thread.

Claims (5)

A spinning frame with multiple spinning units that form a bobbin in a wound state,
A thread winder having a plurality of winding units for winding the thread from a bobbin in which the thread is wound to form a package.
A loop-shaped circulation transport unit that is connected to each of the spinning frame and the yarn winder and conveys a bobbin in which the yarn is wound and a bobbin in which the yarn is not wound in a mixed state in one direction. The bobbin in which the yarn is wound is conveyed to the yarn winder, and the bobbin in which the yarn is not wound is conveyed to the spinning frame.
The circulation transport unit
A bobbin in which a predetermined amount of yarn is wound has a contact portion provided so as to be in contact with the yarn layer of the bobbin when it is located at the first position of the circulation transport portion, and is located at the first position. A first detector that detects the presence or absence of contact with the bobbin, and
It has a catching part capable of catching the thread wound on the outer peripheral surface by moving along the outer peripheral surface of the bobbin located at the second position of the circulation transporting part, and is located at the second position. A second detection unit that detects the presence or absence of thread capture after the capture operation on the bobbin.
The bobbin detected at at least one of the first detection unit and the second detection unit is carried from the circulation transport unit into the transport path connected to the thread winder, and the first detection unit and the second detection unit are carried. A bobbin winding system including a distribution unit that prohibits bobbins that are not detected by both of the above from the circulation transport unit into the transport path. The second position is provided adjacent to the downstream side of the first position in the bobbin transport direction in the circulation transport section.
The first detection unit detects the presence or absence of contact of the contact portion with respect to the bobbin passing through the first position.
The second detection unit stops the bobbin whose contact has not been detected by the contact unit at the second position, and detects the presence or absence of capture after the capture operation for the stopped bobbin. The thread winding system according to 1. The transport device transports the bobbin mounted on the tray, and conveys the bobbin.
The circulation transport unit further includes a third detection unit that detects whether or not the bobbin is mounted on the tray.
In addition to the bobbins detected by at least one of the first detection unit and the second detection unit, the distribution unit transports the tray in which the bobbins were not detected by the third detection unit from the circulation transfer unit. The thread winding system according to claim 1 or 2, which is carried into the road. The thread winding system according to claim 3, further comprising a bobbin supply unit for mounting the bobbin on the tray to which the bobbin is not mounted, between the circulation transport unit and the thread winder. A bobbin in which a predetermined amount of yarn is not wound is detected between the circulation transport unit and the yarn winder, and the yarn wound around the bobbin is removed so that the yarn is not wound. The yarn winding system according to any one of claims 1 to 4, further comprising a residual yarn processing unit for forming the bobbin.

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