EP2671832B1

EP2671832B1 - Yarn winding device

Info

Publication number: EP2671832B1
Application number: EP13167607.4A
Authority: EP
Inventors: Kenji Kawamoto
Original assignee: Murata Machinery Ltd
Current assignee: Murata Machinery Ltd
Priority date: 2012-06-04
Filing date: 2013-05-14
Publication date: 2016-06-29
Anticipated expiration: 2033-05-14
Also published as: JP2013249190A; CN103449258A; EP2671832A3; EP2671832A2; CN103449258B

Description

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to a yarn winding device adapted to wind a yarn to form a package.

2. Description of the Related Art

Japanese Unexamined Patent Publication No. 2004-352465 discloses an automatic winder including a plurality of winding units adapted to wind a yarn to form a package. One winding unit winds the yarn unwound from a yarn supplying bobbin around a bobbin supported by a cradle while traversing the yarn by a traverse drum to form a package. A clearer and a yarn joining device are arranged between the yarn supplying bobbin and the traverse drum. The clearer detects a yarn defect contained in a travelling yarn, and the yarn is cut by a cutter arranged in the clearer when the yarn defect is detected. The yarn joining device joins the yarn from the yarn supplying bobbin and the yarn from the package at the time of yarn breakage or at the time of yarn cut by the cutter.
In each winding unit, when the yarn defect is detected by the clearer and the yarn is cut by the cutter, a setting condition of such yarn cut can be displayed on a display section of each winding unit to check whether the yarn is cut according to the setting condition.
The clearer detects the yarn defect, and at the same time, acquires various types of information associated with the state of the yarn such as thickness and hairiness of the travelling yarn. If such information can be appropriately checked by an operator, this is advantageous in checking the details (thickness, length, or the like) of the actually removed yarn defect, adjusting each section of the winding unit to form a package of better quality, and the like. However, in Japanese Unexamined Patent Publication No. 2004-352465 , the setting condition of when the yarn is cut with the cutter is merely displayed on the display section of the winding unit, and the useful information associated with the state of the yarn detected by the clearer cannot be easily checked by the operator.
EP 2 455 318 A1 discloses a management system for an automatic winder and an automatic winder. The automatic winder includes a clearer control box to which a clearer of a rewinding unit is connected. The clearer control box has a display serving as display means with the help of which various information concerning a yarn defect can be displayed.

BRIEF SUMMARY OF THE INVENTION

It is an object of the present invention to provide a yarn winding device enabling an operator to easily check information associated with a state of a yarn to be wound.
A yarn winding device of a first aspect of the invention includes a winding unit adapted to wind a yarn to form a package, wherein the winding unit includes a yarn supplying section, a winding section adapted to wind a yarn supplied from the yarn supplying section, a yarn state detecting section adapted to detect a state of the yarn between the yarn supplying section and the winding section, a display section adapted to display information associated with the winding unit, and a display data processing section adapted to perform processing of converting detection data associated with the state of the yarn detected by the yarn state detecting section to data to be displayed on the display section, and the information associated with the state of the yarn displayed on the display section includes information associated with hairiness of the yarn.
According to the present invention, the state of the yarn wound by the winding section is detected in the yarn state detecting section. The detection data is converted to the data to be displayed on the display section by the display data processing section, and displayed on the display section. The operator thus can easily check, from the information displayed on the display section, the yarn Y in what kind of state is being wound. Since the information associated with the hairiness of the yarn to be wound is displayed on the display section of the winding unit, the information of the hairiness can be easily checked.
The yarn winding device of the present invention includes a plurality of the winding units, wherein the respective display sections display the information associated with the state of the yarn data converted by the display data processing section in each of the plurality of winding units.
In the present invention, a package is formed in each of the plurality of winding units. In each of the plurality of winding units, the detection data of the state of the yarn detected by the yarn state detecting section is converted to the data for display, and then displayed on the display section. Therefore, the operator near a certain winding unit can promptly check, from the display section of the relevant winding unit, the yarn in what kind of state is being wound in the relevant winding unit.
In the yarn winding device of the present invention, the information associated with the state of the yarn displayed by the display section includes information associated with a thickness of the yarn.
According to the present invention, the information associated with the thickness of the yarn to be wound is displayed on the display section of the winding unit. Thus, the information on the thickness of the yarn can be easily checked.
In the yarn winding device of the present invention, the yarn state detecting section detects a yarn defect in the yarn travelling between the yarn supplying section and the winding section; the winding unit includes a yarn cutting section adapted to cut the yarn to remove the yarn defect when the yarn defect is detected by the yarn state detecting section, and the information associated with the state of the yarn displayed by the display section includes information associated with the yarn defect.
According to the present invention, the information associated with the detected yarn defect is displayed on the display section of the winding unit. Thus, the information of the yarn defect can be easily checked.
In the yarn winding device of the present invention, the winding unit includes a yarn joining section adapted to join a yarn end from the yarn supplying section and a yarn end from the winding section while removing the yarn defect when the yarn is cut by the yarn cutting section.
After the yarn defect is detected by the yarn state detecting section and the yarn is cut by the yarn cutting section, the yarn joining section joins the yarn end from the yarn supplying section and the yarn end from the winding section while removing the yarn defect. The winding of the yarn by the winding section thus can be resumed.
In the yarn winding device of the present invention, the display data processing section displays, on the display section, information associated with the state of the yarn immediately before being wound by the winding section detected by the yarn state detecting section while the yarn is being wound by the winding section.
According to the present invention, the information associated with the state of the yarn immediately before being wound by the winding section detected by the yarn state detecting section is displayed while the yarn is being wound by the winding section. Thus, the information of the yarn can be checked in real time during the winding.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a front view of an automatic winder according to the present embodiment;
FIG. 2 is a front view of one winding unit of the automatic winder;
FIG. 3 is a front view of an operation panel; and
FIG. 4 is a block diagram schematically illustrating an electrical configuration in one winding unit.

DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS

A description will be made below on an embodiment of the present invention. The present embodiment is an example in which the present invention is applied to an automatic winder including a plurality of winding units adapted to wind a yarn unwound from a yarn supplying bobbin around a winding tube to form a package. FIG. 1 is a front view of the automatic winder according to the present embodiment, and FIG. 2 is a front view of one winding unit of the automatic winder.
As illustrated in FIG. 1, an automatic winder 1 (yarn winding device) includes a plurality of winding units 2 arranged in a line in a left and right direction of FIG. 1, a doffing device 3 arranged to freely travel in the direction in which the plurality of winding units 2 are arranged, and a machine control device 4 adapted to perform an overall control of the automatic winder 1. The machine control device 4 is arranged at one end side in the direction in which the winding units 2 are arranged.
The automatic winder 1 is configured to send a command to each of the plurality of winding units 2 from the machine control device 4, and wind a yarn Y unwound from a yarn supplying bobbin B around the winding tube to form a package P in each winding unit 2. When a fully-wound package is formed in a certain winding unit 2, the doffing device 3 moves to above the relevant winding unit 2 to replace the fully-wound package with an empty winding tube 17 (see FIG. 2). The machine control device 4 controls the operation of each winding unit 2, and also performs monitoring of the operation state, setting and storing of the operation parameters, and the like.
Next, a description will be made on a detailed configuration of each winding unit 2. The winding unit 2 illustrated in FIG. 2 winds the spun yarn Y unwound from the yarn supplying bobbin B around the winding tube 17 while traversing to form the package P of a predetermined shape.
The winding unit 2 includes a unit machine 10, a yarn supplying section 11 adapted to unwind and supply the yarn Y of the yarn supplying bobbin B, a yarn processing executing section 12 adapted to perform various types of processing on the yarn Y supplied from the yarn supplying section 11, and a winding section 13 adapted to wind the yarn Y processed by the yarn processing executing section 12 around the winding tube 17 to form the package P. The yarn supplying section 11, the yarn processing executing section 12, and the winding section 13 are arranged in a line from top to bottom in this order. The unit machine 10 includes an operation panel 25 and a unit control section 26 (see FIG. 4).
The yarn supplying section 11 includes a peg 15 for holding the yarn supplying bobbin B, and an unwinding assisting device 16 for assisting the unwinding of the yarn Y from the yarn supplying bobbin B. At the time of the unwinding of the yarn Y (at the time of yarn winding), the peg 15 is in a perpendicular state illustrated in FIG. 2. The peg 15 is driven by a peg driving section 28 (see FIG. 4) to tilt forward and backward (perpendicular direction in the plane of drawing in FIG. 2), to thereby discharge the empty yarn supplying bobbin B and receive a new yarn supplying bobbin B from a magazine (not illustrated). The unwinding assisting device 16 includes a tube body that is driven up and down by an unwinding assisting device driving section 29 at an upper part of the yarn supplying bobbin B. This tube body is lowered according to the progress of the unwinding of the yarn Y from the yarn supplying bobbin B to regulate expansion (balloon) of the yarn Y during the unwinding, and stabilize the unwinding of the yarn Y.
The winding section 13 includes a cradle (not illustrated) adapted to grip the winding tube 17 in a freely rotating manner, and a traverse drum 18 rotatably driven by a drum driving section 27. A spiral traverse groove 18a is formed on a peripheral surface of the traverse drum 18, and the traverse groove 18a traverses the yarn Y. The traverse drum 18 is rotatably driven in a state of making contact with the package P formed around the winding tube 17 while traversing the yarn Y with the traverse groove 18a. Consequently, the package P rotates by contacting friction with the traverse drum 18, and the yarn Y unwound from the yarn supplying bobbin B is wound around the winding tube 17.
The yarn processing executing section 12 includes a yarn filler 19, a tension applying device 20, a yarn joining device 21 (yarn joining section), and a yarn clearer 22 (yarn state detecting section).
The yarn filler 19 detects presence or absence of the yarn Y between the unwinding assisting device 16 and the tension applying device 20. The tension applying device 20 applies a prescribed tension on the travelling yarn Y. FIG. 2 illustrates, by way of example, a gate-type tension applying device including fixed comb teeth 20a and movable comb teeth 20b driven by a tension applying device driving section 30 (see FIG. 4).
The yarn joining device 21 joins a lower yarn Y1 from the yarn supplying bobbin B and an upper yarn Y2 from the package P at the time of the yarn cut by a cutter 22a when the yarn defect is detected by the yarn clearer 22, to be described later, at the time of yarn breakage during the winding, or at the time of replacing the yarn supplying bobbin B. An example of the yarn joining device 21 is an air splicer that performs yarn joining operation by generating an airflow to cause fibers of the lower yarn Y1 and the upper yarn Y2 to entangle with one another.
A lower yarn catching-and-guiding member 23 adapted to catch the lower yarn Y1 from the yarn supplying bobbin B and guide the lower yarn Y1 to the yarn joining device 21, and an upper yarn catching-and-guiding member 24 adapted to catch the upper yarn Y2 from the package P and guide the upper yarn Y2 to the yarn joining device 21 are respectively arranged below and above the yarn joining device 21. The lower yarn catching-and-guiding member 23 and the upper yarn catching-and-guiding member 24 both have one end rotatably attached to the unit machine 10. Furthermore, the lower yarn catching-and-guiding member 23 and the upper yarn catching-and-guiding member 24 can be swung up and down by being driven by a lower yarn guiding member driving section 31 and an upper yarn guiding member driving section 32 (both illustrated in FIG. 4).
A suction port 23a of the lower yarn catching-and-guiding member 23 sucks and catches the yarn end of the lower yarn Y1, and is swung upward from below to guide the lower yarn Y1 to the yarn joining device 21. At the same time, the upper yarn catching-and-guiding member 24 has a suction mouth 24a swung to a yarn end catching position in proximity to a contact point of the package P and the traverse drum 18. The suction mouth 24a sucks and catches the yarn end of the upper yarn Y2 from the package P at the yarn end catching position, and is again swung downward. The upper yarn catching-and-guiding member 24 then guides the upper yarn Y2 to the yarn joining device 21. The yarn joining device 21 joins the yarn end of the lower yarn Y1 guided by the lower yarn catching-and-guiding member 23 and the yarn end of the upper yarn Y2 guided by the upper yarn catching-and-guiding member 24 to obtain one yarn Y. Accordingly, the winding of the yarn Y by the winding section 13 can be resumed.
The yarn clearer 22 constantly acquires information on a thickness of the travelling yarn Y, and based on this information, detects an abnormal portion in the yarn Y where the yarn thickness is thick by a prescribed amount or more as a yarn defect. In addition to the information of the yarn thickness, the yarn clearer 22 also acquires information associated with the hairiness of the travelling yarn Y. As information associated with the state of the travelling yarn Y, the yarn clearer 22 transmits to the unit control section 26 the information associated with the thickness of the yarn Y, the information associated with the hairiness, and the information associated with the detected yarn defect. The yarn clearer 22 includes the cutter 22a (yarn cutting section), which immediately cuts the yarn Y when the yarn defect is detected by the yarn clearer 22.
If the yarn Y is cut after the yarn defect is detected by the yarn clearer 22, the yarn defect remains in the upper yarn Y2. In the yarn joining device 21, the lower yarn Y1 and the upper yarn Y2 are joined after the remaining yarn defect is removed from the upper yarn Y2.
Next, a description will be made on the operation panel 25. FIG. 3 is a front view of the operation panel 25. As illustrated in FIG. 2 and FIG. 3, the operation panel 25 includes a display section 40, an operation button group 41, an operation switch 42, and two alarm lamps 43, 44.
The display section 40 is installed at the upper part of the operation panel 25. The display section 40 includes three 7-segment LEDs 40a arranged side by side. Each of the three 7-segment LEDs 40a has a decimal display function. Accordingly, the display section 40 can display three characters, numbers, or symbols at the same time.
The display section 40 displays information associated with the winding unit 2. For example, a unit number is individually set to each of the plurality of winding units 2 of the automatic winder 1. The display section 40 of each winding unit 2 can display the unit number of the relevant winding unit 2. When performing the operation adjustment of each section of the winding unit 2 described above, the set value can be displayed. The operation adjustment includes, for example, an angle adjustment of the peg 15, a height adjustment of the tube body of the unwinding assisting device 16, a position adjustment of the movable comb teeth 20b of the tension applying device 20, or the like. Furthermore, in the present embodiment, in particular, the display section 40 can also display information associated with the state of the yarn Y detected by the yarn clearer 22. The display of the information detected by the yarn clearer 22 will be described in detail later. The number of 7-segment LEDs constituting the display section 40 is not particularly required to be three, and can be appropriately changed according to the information to be displayed.
The operation button group 41 is installed at a central part in the vertical direction of the operation panel 25. The operation button group 41 is configured by a total of five buttons 41a to 41e at the top, bottom, left, right, and middle. The five buttons 41a to 41e of the operation button group 41 are operated by the operator when switching the display content of the display section 40, changing the set value at the time of adjustment of each section of the winding unit 2, and the like.
The operation switch 42 is a switch for switching operation and stop of the winding unit 2, and is installed at the lower part of the operation panel 25. The operation switch 42 includes a movable portion 42a movable towards the front and the back. When the movable portion 42a is pushed into the rear side, the winding unit 2 is in the operation state. When the movable portion 42a is pulled out to the front side, the winding unit 2 is in the stop state.
The two alarm lamps 43, 44 are arranged on both left and right sides of the operation button group 41. The two alarm lamps 43, 44 respectively indicate the operation state of the winding unit 2 to the operator. One alarm lamp 43 is a green alarm lamp that emits green light, and the other alarm lamp 44 is a red alarm lamp that emits red light. The green alarm lamp 43 is used for, for example, notifying the operator that the package P is close to full-wound during the yarn winding. The red alarm lamp 44 is used for, for example, notifying the operator that the yarn winding operation cannot be normally carried out due to generation of abnormality in the winding unit 2.
Next, a description will be made on the unit control section 26. FIG. 4 is a block diagram schematically illustrating an electrical configuration in one winding unit 2. The unit control section 26 illustrated in FIG. 4 is configured by a CPU (Central Processing Unit), which is an arithmetic processing unit, a ROM (Read-Only Memory) storing programs to be executed by the CPU and data used in the program, a RAM (Random Access Memory) for temporarily storing data at the time of program execution, and the like.
As illustrated in FIG. 4, the unit control section 26 is electrically connected to the peg driving section 28, the unwinding assisting device driving section 29, the yarn filler 19, the tension applying device driving section 30, the yarn joining device 21, the lower yarn guiding member driving section 31, the yarn clearer 22, the upper yarn guiding member driving section 32, the drum driving section 27, and the operation panel 25. The unit control section 26 executes the control program stored in the ROM by the CPU based on the command from the machine control device 4 (see FIG. 1) of the automatic winder 1 to control each section of the winding unit 2 and cause the winding unit 2 to execute the yarn winding operation.
Furthermore, the unit control section 26 includes a display data processing section 35. The display data processing section 35 is input with the information associated with the thickness of the yarn Y, the information associated with the hairiness, and the information associated with the detected yarn defect as data associated with the state of the yarn Y from the yarn clearer 22 described above. The display data processing section 35 performs the processing of converting the detection data associated with the state of the yarn Y to the data to be displayed on the display section 40.
The information associated with the thickness of the yarn Y includes, for example, a CV value (unit: %) indicating the degree of yarn unevenness. The information associated with the hairiness includes, for example, a hairiness value (unit: %). The information associated with the yarn defect includes, for example, thickness and length of the yarn defect. Alternatively, a plurality of categories is defined according to the thickness and length of the yarn defect, and the defined yarn defect category may be displayed.
As illustrated in FIG. 3, since the display section 40 includes three 7-segment LEDs 40a (with decimal display function), three digit values can be displayed for a number. For example, "12.3" (unit: %) can be displayed in the case of the CV value, and "12.3" (unit: %) can be displayed in the case of the hairiness value. For the thickness and the length of the yarn defect, "160" and "20" are displayed for the yarn defect having a thickness of 160% and a length of 20 mm, for example. To display both the thickness and the length of the yarn defect, for example, the thickness and the length may be alternately displayed for every prescribed period of time. For the yarn defect category, one alphabet and one character are displayed using two 7-segment LEDs 40a. The display of the numerical value is realized through the processing of converting the detection data input from the yarn clearer 22 to the data to be displayed with the 7-segment LED by the display data processing section 35.
In the display section 40 including the 7-segment LEDs 40a, only one of the information associated with the state of the yarn Y can be displayed, and thus the information to be displayed on the display section 40 needs to be switched among the plurality of types of information associated with the state of the yarn Y. For example, when the operator operates the operation button group 41, the display data processing section 35 of the unit control section 26 may display desired information corresponding to such operation on the display section 40.
Since the information associated with the state of the yarn Y detected by the yarn clearer 22 is displayed on the display section 40, the operator can easily check, from the information displayed on the display section 40, the yarn Y in what kind of state is being wound in each winding unit 2.
Among the information associated with the state of the yarn Y, the CV value and the hairiness value are constantly acquired by the yarn clearer 22 while the yarn Y is being wound by the winding section 13. Thus, during the yarn winding, the display data processing section 35 causes the display section 40 to display the CV value or the hairiness value of the yarn Y immediately before being wound by the winding section 13. The operator can check the CV value or the hairiness value of the yarn Y immediately before being wound by the winding section 13 in real time. The information of the yarn defect is displayed on the display section 40 when the yarn defect is detected by the yarn clearer 22. For example, the yarn defect may be displayed on the display section 40 until elapse of a predetermined time after the detection of the yarn defect. Even after the winding of the yarn Y is resumed, the yarn defect information may be displayed on the display section 40 when the operator operates the operation button group 41 at an appropriate timing as necessary.
Furthermore, when the operator checks the information associated with the state of the yarn Y, the following operations can be carried out based on such information.
For example, the operator can easily check, from the CV value displayed on the display section 40, the information on the thickness of the yarn Y wound by the winding unit 2, specifically, whether the yarn unevenness is large or small.
In addition, the operator can easily check whether the amount of hairiness of the yarn Y wound by the winding unit 2 is large or small from the hairiness value displayed on the display section 40. If the amount of hairiness is extremely large, the operator can once stop the winding operation for the relevant winding unit 2, and then adjust each section of the winding unit 2 so that the hairiness is reduced. For example, by adjusting the height position of the tube body driven by the unwinding assisting device driving section 29 of the unwinding assisting device 16, the friction of the yarn Y can be reduced and the hairiness generated at the time of unwinding can be suppressed. The hairiness can also be suppressed by changing the position of the movable comb teeth 20b driven by the tension applying device driving section 30 to weaken the tension applied by the tension applying device 20. If the hairiness cannot be sufficiently suppressed even with the adjustment of the tension in the tension applying device 20, the hairiness can be suppressed by further lowering a rotation speed of the traverse drum 18 driven by the drum driving section 27 of the winding section 13 and lowering a winding speed of the package.
The operator can easily check the details of the detected yarn defect from the information of the yarn defect displayed on the display section 40. When the yarn defect is detected and the yarn Y is cut by the yarn clearer 22, whether the detection of the yarn defect and the yarn cut are being carried out as expected can be checked by checking (sampling) the actual yarn defect. When performing the sampling of the yarn defect in a certain winding unit 2, the unit control section 26 of the relevant winding unit 2 does not allow the yarn joining device 21 to perform the yarn joining operation so that the operator can check the actual yarn defect after the yarn defect is detected and the yarn Y is cut by the cutter 22a.
In performing the sampling of the yarn defect, when the detection of the yarn defect and the subsequent yarn cutting are performed in a certain winding unit 2, the operation of the sampling of the yarn defect becomes extremely easy if the yarn defect information is displayed on the display section 40 of the relevant winding unit 2. That is, the operator can compare the yarn defect contained in the yarn Y and the displayed yarn defect information without moving from the position of the winding unit 2 where the sampling is performed. As a result of the comparison, if the sampled yarn defect and the displayed yarn defect information do not correspond with one another, the operator operates the operation panel 25 while looking at the display section 40 to set the sampling condition corresponding to each yarn defect.
In the present embodiment, the information associated with the state of the yarn Y wound by the individual winding unit 2 is displayed on the respective display section 40 of the plurality of winding units 2 of the automatic winder 1. Alternatively, the information associated with the state of the yarn Y for each of the plurality of winding units 2 may be displayed on the display section 40 of the machine control device 4 of the automatic winder 1. In this case, however, even if the operator desires to immediately check the state of the yarn Y of the nearby winding unit 2, the operator needs to move to the machine control device 4 to check the state, which leads to temporal loss. In the automatic winder 1 of the present embodiment, the operator near a certain winding unit 2 can promptly check, from the display section 40 of the relevant winding unit 2, the yarn Y in what kind of state is being wound in the relevant winding unit 2.
One embodiment of the present invention has been described above, but the mode in which the present invention can be applied is not limited to the embodiment described above. For example, changes can be appropriately made within a scope not deviating from the scope of the invention, as will be hereinafter illustrated.
In the embodiment described above, the information associated with the state of the yarn Y displayed on the display section 40 include the CV value, the hairiness value, the yarn defect information (thickness and length of the yarn defect), and the yarn defect category. However, all such information does not need to be displayed by the display section 40, and one of the information may be displayed. The information associated with the state of the yarn Y is not limited to the information described above, and is not limited to specific information as long as it is the information associated with the state of the yarn Y detected by the yarn clearer 22. For example, for the information associated with the hairiness, the information associated with the size of hairiness may be displayed.
In the embodiment described above, the display section 40 includes three 7-segment LEDs 40a, but the display section 40 may be a liquid crystal display. In this case, the plurality of types of information associated with the state of the yarn Y can be simultaneously displayed on the display section 40.
The embodiment described above is an example in which the present invention is applied to the automatic winder 1 including the plurality of winding units 2, but the present invention may be applied on the yarn winding device including only one winding unit 2.

Claims

A yarn winding device (1) comprising:
a winding unit (2) adapted to wind a yarn to form a package (P), wherein

the winding unit (2) includes
a yarn supplying section (11),

a winding section (13) adapted to wind a yarn supplied from the yarn supplying section (11),

a yarn state detecting section (22) adapted to detect a state of the yarn between the yarn supplying section (11) and the winding section (13), and

a display section (40) adapted to display information associated with the winding unit (2), characterized in that the winding unit further includes

a display data processing section (35) adapted to perform processing of converting detection data associated with the state of the yarn detected by the yarn state detecting section (22) to data to be displayed on the display section (40), and

the information associated with the state of the yarn displayed on the display section (40) includes information associated with hairiness of the yarn.
The yarn winding device (1) according to claim 1, characterized by comprising a plurality of the winding units (2), wherein
the respective display sections (40) display the information associated with the state of the yarn converted by the display data processing section (35) in each of the plurality of winding units (2).
The yarn winding device (1) according to claim 1 or 2, characterized in that the information associated with the state of the yarn displayed by the display section (40) includes information associated with a thickness of the yarn.
The yarn winding device (1) according to any of claims 1 to 3, characterized in that
the yarn state detecting section (22) detects a yarn defect in the yarn travelling between the yarn supplying section (11) and the winding section (13),
the winding unit (2) includes a yarn cutting section (22a) adapted to cut the yarn to remove the yarn defect when the yarn defect is detected by the yarn state detecting section (22), and
the information associated with the state of the yarn displayed by the display section (40) includes information associated with the yarn defect.
The yarn winding device (1) according to claim 4, characterized in that the winding unit (2) includes a yarn joining section (21) adapted to join a yarn end from the yarn supplying section (11) and a yarn end from the winding section (13) while removing the yarn defect when the yarn is cut by the yarn cutting section (22a).
The yarn winding device (1) according to any of claims 1 to 5, characterized in that the display data processing section (35) is adapted to display, on the display section (40), information associated with the state of the yarn immediately before being wound by the winding section (13) detected by the yarn state detecting section (22) while the yarn is being wound by the winding section (13).