CN107539841B

CN107539841B - Textile machine

Info

Publication number: CN107539841B
Application number: CN201710498770.7A
Authority: CN
Inventors: 村山贤一
Original assignee: Murata Machinery Ltd
Current assignee: Murata Machinery Ltd
Priority date: 2016-06-27
Filing date: 2017-06-27
Publication date: 2020-08-18
Anticipated expiration: 2037-06-27
Also published as: CN107539841A; JP2018002328A; EP3263501B1; EP3263501A1

Abstract

An automatic winder (1) of a textile machine is provided with: a joint device (38); a first catching guide device (30) for guiding the yarn (14) into the piecing device (38); an upper yarn sensor (60) for detecting the yarn (14) in the tube (32) of the first catching guide device (30); a yarn monitoring device (40) for detecting the yarn (14) traveling along the yarn path; a unit control unit (100) that determines whether or not the first catching guide device (30) successfully catches the yarn (14) on the winding unit (17) side, based on the detection result of at least one of the upper yarn sensor (60) and the yarn monitoring device (40); and a unit control unit (100) that determines whether or not a defect regarding the yarn splicing operation has occurred based on the detection results of the yarn feeding sensor (60) and the yarn monitoring device (40).

Description

Textile machine

Technical Field

The present invention relates to a textile machine.

Background

As a conventional textile machine, for example, a machine described in international publication No. 2015/029275 is known. The textile machine described in international publication No. 2015/029275 includes: a winding yarn catching and guiding device including a movable catching unit that moves from a standby position to a catching position on a winding unit side when the yarn is in a cut state, and that attracts and catches the winding yarn, which is the yarn on the winding unit side; a detection unit that detects the winding yarn captured by the winding yarn capturing and guiding device; and a yarn splicing device for performing a yarn splicing operation of the wound yarn and the yarn drawn out on the yarn supply portion side.

In the conventional textile machine described above, the presence or absence of the winding yarn inside the movement catching unit is detected by the detection unit, and thereby it is determined whether or not the winding yarn catching and guiding device has successfully caught the winding yarn. However, in the textile machine, even when the yarn caught by the yarn catching and guiding device is successfully wound, the yarn splicing operation by the yarn splicing device may not be performed normally due to some other trouble.

In such a case, it is preferable to enable the operator to recognize the occurrence of a failure related to the joint operation at an earlier stage from the viewpoint of the operation rate.

Disclosure of Invention

An object of one aspect of the present invention is to provide a textile machine capable of appropriately detecting occurrence of a failure related to a joint operation.

A textile machine according to one aspect of the present invention includes: a yarn feeding unit for drawing out the yarn from the yarn feeding unit; a winding section for winding the yarn drawn from the yarn supply section to form a package; a yarn splicing device for splicing a yarn on the yarn supply side and a yarn on the winding side; a yarn catching and guiding device for sucking and catching the yarn on the winding part side into the tube part and guiding the yarn to the piecing device; a first detection unit that detects the yarn in the tube portion of the yarn capturing and guiding device; a second detection unit which is provided in the yarn path between the yarn feeding unit and the winding unit and detects the yarn running along the yarn path; a success/failure determination unit that determines whether or not the yarn catching guide device has successfully caught the yarn on the winding unit side based on a detection result of at least one of the first detection unit and the second detection unit; and a failure determination unit that determines whether or not a failure related to the joint operation has occurred based on the detection results of the first detection unit and the second detection unit.

In the textile machine according to one aspect of the present invention, the failure determination unit determines whether or not a failure related to the joint operation has occurred based on the detection results of the first detection unit and the second detection unit. Thus, in the textile machine, it is possible to determine whether or not the yarn catching guide device has successfully caught the yarn, and whether or not a defect related to the yarn splicing operation has occurred. Therefore, in the textile machine, the occurrence of a malfunction relating to the joint operation can be appropriately detected. As a result, the operator of the textile machine can know the trouble related to the joint operation.

In one embodiment, the yarn feeding unit may be a support mechanism that supports a yarn feeding bobbin around which the yarn is wound. In this configuration, the textile machine is configured as an automatic winder. Therefore, it is possible to determine whether or not there is a problem regarding the joint operation of the automatic winder.

In one embodiment, the yarn feeding section may be a spinning device that twists a fiber bundle to generate a yarn. In this configuration, the textile machine is configured as a spinning machine. Therefore, it is possible to determine whether or not there is a problem regarding the yarn splicing operation of the spinning machine.

In one embodiment, the second detection unit may be a yarn monitoring device that monitors a state of the yarn running along the yarn path. In general, a yarn monitoring device is provided in a textile machine. Therefore, the second detection unit is used as the yarn monitoring device, so that the yarn running along the yarn path can be detected in the conventional configuration. Thus, it is possible to determine whether or not there is a problem relating to the joint operation without providing any special device.

In one embodiment, the yarn monitoring device may be a yarn defect detecting device that detects a defect in the yarn based on a change in thickness of the yarn. In this configuration, the state of the yarn can be appropriately monitored by detecting a defect caused by a change in the thickness of the yarn.

In one embodiment, the yarn catching guide device may be provided with a light-transmitting portion having light-transmitting properties in a tube portion thereof, and the first detection portion may have a light projecting portion and a light receiving portion, and the light receiving portion may detect the yarn inside the tube portion by receiving light reflected by the yarn from the light projecting portion projecting toward the light-transmitting portion in a state where the yarn catching guide device is located at the catching position. In this configuration, since the light projecting section and the light receiving section are not provided in the tube section of the yarn catch guide, the wiring connected to the light projecting section and the light receiving section does not move. Therefore, deterioration of the wiring can be suppressed, and thus occurrence of a failure of the first detection portion due to deterioration of the wiring can be suppressed.

In one embodiment, the failure determination unit may determine whether or not at least one of a failure of the first detection unit, a failure of the second detection unit, and a failure of the yarn caught by the yarn catching and guiding device has occurred as a failure related to the yarn splicing operation. By determining whether any of these defects is present, it is possible to detect a defect occurring during the joint operation.

In one embodiment, the textile machine may include a display unit that displays that a failure has occurred when the failure determination unit determines that a failure has occurred. In this configuration, the occurrence of a malfunction relating to the joint operation can be appropriately reported to the operator.

According to one aspect of the present invention, it is possible to appropriately detect occurrence of a malfunction relating to a joint operation.

Drawings

Fig. 1 is a front view of an automatic winder according to an embodiment.

Fig. 2 is a side view of the take-up unit.

Fig. 3 is a perspective view showing the winding unit and the first catching guide.

Fig. 4 is a perspective view showing a tube portion.

Fig. 5 is a view showing a cross-sectional structure of a tube portion.

Detailed Description

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the description of the drawings, the same or corresponding elements are denoted by the same reference numerals, and redundant description thereof is omitted.

As shown in fig. 1, an automatic winder (textile machine) 1 mainly includes a plurality of winding units 10, a machine table control device 12, and a doffing device 13, which are arranged in parallel.

The machine control device 12 can communicate with each of the reeling units 10. The operator of the automatic winder 1 can collectively manage the plurality of winding units 10 by appropriately operating the machine station control device 12. The machine control device 12 is provided with a display screen (display unit) 12a and an input key 12 b. The display screen 12a can display information and the like related to the setting content and/or the state of the winding unit 10. The operator can perform the setting operation of the winding unit 10 by performing an appropriate operation using the input key 12 b.

The winding unit 10 unwinds the yarn 14 from each of the yarn supplying bobbins 16, and winds the yarn 14 onto the winding bobbin 19 while traversing. As described above, the winding unit 10 forms the package 22.

Each of the winding units 10 includes a unit control unit 100 on one side (the right side in fig. 1) of the yarn supplying bobbin 16, the package 22, and the like. The unit control unit 100 includes, for example, a cpu (central Processing unit) and a rom (read only memory). The ROM stores programs for controlling the respective configurations of the winding unit 10. The CPU executes programs stored in the ROM.

When the package 22 is fully wound (a state in which a predetermined amount of yarn is wound) in each winding unit 10, the doffing device 13 moves to the position of the winding unit 10, removes the fully wound package, and sets an empty winding bobbin 19.

Next, the structure of the winding unit 10 will be described with reference to fig. 2. As shown in fig. 2, the winding unit 10 includes a yarn feeder 15 and a winding unit 17.

The yarn feeding section 15 is a support mechanism that supports a yarn feeding bobbin 16 placed on a transport tray, not shown, at a predetermined position. Thereby, the yarn 14 is unwound from the yarn supplying bobbin 16, and the yarn 14 is pulled out from the yarn supplying bobbin 16. The yarn feeding unit 15 is not limited to the transport tray type, and may be a magazine type, for example.

The winding unit 17 includes a cradle 18, a winding bobbin 19, and a winding drum 20 as main components.

The cradle 18 has a pair of rotation support portions (not shown). The cradle 18 rotatably supports the winding bobbin 19 (or the package 22) by sandwiching the winding bobbin 19 with a rotation support portion. The cradle 18 can be switched between a state in which the supported package 22 is in contact with the winding drum 20 and a state in which the package 22 is separated from the winding drum 20.

The winding drum 20 rotates the package 22 while traversing the yarn 14 on the surface of the package 22. The take-up drum 20 is rotationally driven by a drum drive motor 21. The package 22 is driven to rotate by rotationally driving the winding drum 20 in a state where the outer periphery of the package 22 is brought into contact with the winding drum 20. A spiral traverse groove (traverse mechanism) is formed on the outer peripheral surface of the winding drum 20. The yarn 14 unwound from the yarn supplying bobbin 16 is wound around the surface of the package 22 while being traversed by a traverse groove at a constant width. This enables the package 22 to be formed with a constant winding width.

In each winding unit 10, an unwinding assisting device 25, a tension applying device 27, a splicing device 38, and a yarn monitoring device (a second detecting unit, a yarn defect detecting device) 40 are arranged in this order from the yarn feeding unit 15 side in a yarn traveling path between the yarn feeding unit 15 and the winding unit 17. A first catching guide device (yarn catching guide device) 30 and a second catching guide device 34 are disposed near the yarn splicing device 38. In the following description, the upstream side and the downstream side in the traveling direction of the yarn 14 may be simply referred to as "upstream side" and "downstream side".

The unwinding assisting device 25 includes a regulating member 26 that can be covered on the core tube of the yarn supplying bobbin 16. The regulating member 26 is substantially cylindrical and is disposed in contact with a balloon formed on the upper portion of the yarn layer of the yarn supplying bobbin 16. The balloon means a portion where the yarn 14 unwound from the yarn supplying bobbin 16 is oscillated by centrifugal force. The restricting member 26 is brought into contact with the balloon to thereby contact the yarn 14 in the balloon portion, thereby preventing the yarn 14 from being excessively waved. This enables the yarn 14 to be appropriately unwound from the yarn supplying bobbin 16.

The tension applying device 27 applies a predetermined tension to the running yarn 14. In the present embodiment, the tension applying device 27 is a gate type device in which movable comb teeth are arranged with respect to fixed comb teeth. The movable comb teeth are biased so that the comb teeth mesh with each other. By passing the yarn 14 between the engaged comb teeth while being bent, an appropriate tension can be applied to the yarn 14, and the quality of the package 22 can be improved.

The yarn splicing device 38 splices the yarn 14 on the yarn feeding unit 15 side (lower yarn) and the yarn 14 on the winding unit 17 side (upper yarn) when the yarn 14 is disconnected between the yarn feeding unit 15 and the winding unit 17 for some reason. In the present embodiment, the splicer device 38 is configured as a splicing device that splices yarn ends with each other by a revolving air flow generated by compressed air.

The first catching guide device 30 is a device that catches the upper yarn 14 when the yarn is in the cut state. The first catching guide 30 has a shaft portion 31, a tube portion (pipe portion) 32, and an upper yarn suction catching portion 33. The tube portion 32 and the upper yarn suction/catching portion 33 are rotatable (movable) from a standby position (solid line in fig. 2) on the yarn feeding portion 15 side to a catching position (dashed-dotted line in fig. 2) on the winding portion 17 side with the shaft portion 31 as a rotation center under the control of the unit control portion 100. The first catching guide device 30 is connected to a negative pressure source (not shown) and can generate suction flow in the upper yarn suction catching portion 33 (more specifically, the suction port at the tip). With this configuration, the upper yarn suction/catching unit 33 can catch the upper yarn at the catching position and return to the standby position, thereby guiding the upper yarn to the yarn splicing device 38.

As shown in fig. 3, the first catching guide device 30 is provided with an upper yarn sensor (first detection unit) 60 that detects the yarn 14 inside the tube portion 32. The upper yarn sensor 60 includes a housing 61, a light projecting section 62, and a light receiving section 63.

The housing 61 is supported by the winding unit 17 via a support member 64. The housing 61 supports the light projecting section 62 and the light receiving section 63. Light projecting unit 62 is formed of a light emitting element such as a light emitting diode. The light emitter 62 emits light to a light-transmitting cover (light-transmitting portion) 50, which will be described later, provided in the tube portion 32. When the yarn 14 is present inside the tube portion 32, the light irradiated by the light emitter 62 is reflected by the yarn 14.

The light receiving unit 63 is formed of a light receiving element such as a photodiode. The light receiving unit 63 receives light (reflected light) reflected by the yarn 14 and outputs an electric signal of current or voltage corresponding to the amount of light. A calculation unit (not shown) is provided inside the housing 61. The calculation unit determines whether or not the first catching guide device 30 successfully catches the yarn 14 on the winding unit 17 side based on the detection result of the light receiving unit 63. Specifically, the calculation unit analyzes the electric signal output from the light receiving unit 63 to determine whether or not the yarn 14 is present inside the tube portion 32. The calculation unit outputs a detection signal indicating a determination result (detection result) of the presence or absence of the yarn 14 in the tube portion 32 to the unit control unit 100.

As described above, as shown in fig. 4, the tube 32 is provided with the translucent cover 50. The light-transmitting cover 50 is formed of a member having light-transmitting properties (for example, acrylic or polycarbonate). The light-transmitting cover 50 is a member for closing an opening 52 provided in the tube 32. The opening 52 is a hole penetrating the wall of the tube 32, and is disposed on the distal end side of the tube 32 (on the upper yarn suction/catching part 33 side). That is, the upper yarn sensor 60 detects the yarn 14 located on the distal end side of the tube portion 32. The light-transmitting cover 50 is attached to the tube 32 so as to be swingable, and the opening 52 can be opened and closed.

As shown in fig. 5, the light projecting portion 62 and the light receiving portion 63 of the upper yarn sensor 60 are disposed on one side of the center (the virtual line L1 in fig. 5) in the package width direction of the tube portion 32. Specifically, the light projecting unit 62 and the light receiving unit 63 are arranged such that an optical axis L2 indicating the optical axis of the light emitted from the light projecting unit 62 does not intersect the center C of the tube 32.

The second catching guide device 34 has a shaft portion 35, a tube portion 36, and a lower yarn suction catching portion 37, as in the first catching guide device 30. Like the upper yarn suction catching portion 33, the lower yarn suction catching portion 37 can rotate about the shaft portion 35 as a rotation center, and can generate suction flow. With this configuration, the second catching guide device 34 can catch the lower yarn and guide the lower yarn to the yarn splicing device 38.

The yarn monitoring device 40 monitors the state of the yarn 14 traveling along the yarn path, and detects the presence or absence of a yarn defect based on the monitored information. The yarn monitoring device 40 detects, for example, a thickness abnormality of the yarn 14 and/or a foreign substance contained in the yarn 14 as a yarn defect. The yarn monitoring device 40 also detects the presence or absence of yarn breakage, that is, the presence or absence of the yarn 14 or the like in the yarn path. The yarn monitoring device 40 has a slit in the yarn passage of the yarn 14 through which the yarn 14 passes, and monitors the yarn 14 passing through the slit by an optical sensor, not shown. When detecting a yarn defect, the yarn monitoring device 40 outputs a yarn defect detection signal to the unit control section 100. A cutter 41 for cutting the yarn 14 is provided near the yarn monitoring device 40. The yarn monitoring device 40 operates the cutter 41.

According to the above, the winding unit 10 can wind the yarn 14 around the winding bobbin 19 to form the package 22. During the yarn splicing operation of the yarn splicing device 38, the yarn 14 on the winding unit 17 side is caught by the first catching guide 30, and the yarn 14 on the yarn feeding unit 15 side is caught by the second catching guide 34. The yarn 14 caught by the first catching guide 30 and the second catching guide 34 is guided to the yarn splicing device 38. At this time, the yarn 14 is positioned in the slit of the yarn monitoring device 40. The yarn splicing device 38 splices the introduced yarn 14.

Next, the operation of the unit control section 100 will be described in detail. The unit control unit 100 functions as a success/failure determination unit 101 that determines whether or not the first catching guide device 30 has successfully caught the yarn 14 on the winding unit 17 side, and a failure determination unit 102 that determines a failure of the automatic winder 1.

The unit control section (success/failure determining section, failure determining section) 100 determines whether or not the first catching guide device 30 successfully catches the yarn 14 on the winding section 17 side and whether or not there is a failure related to the yarn splicing operation based on the detection signal output from the calculating section of the upper yarn sensor 60 and the yarn defect signal output from the yarn monitoring device 40. The unit control unit 100 determines whether or not the first catching guide device 30 successfully catches the yarn 14 on the winding unit 17 side and whether or not there is a problem regarding the yarn splicing operation when the yarn 14 is cut and the yarn splicing operation is started.

The unit control portion 100 determines that the yarn 14 is successfully caught (threaded) by the first catching guide device 30 when the detection signal indicates that the yarn 14 is detected and the yarn defect signal indicates that the yarn 14 is detected. The unit control unit 100 starts the yarn splicing by the yarn splicing device 38 with respect to the yarn 14 when determining that the yarn 14 is successfully captured by the first capturing guide device 30.

The unit control portion 100 determines that the yarn 14 is not caught by the first catching guide device 30 when the yarn 14 is not detected in the detection signal and the yarn defect signal indicates that the yarn 14 is not detected. The unit control unit 100 causes the first catching guide device 30 to again catch the yarn 14 when determining that the catching of the yarn 14 by the first catching guide device 30 has failed.

The unit control unit 100 determines that the first defect occurs when the detection signal indicates that the yarn 14 is detected and the yarn defect signal indicates that the yarn 14 is not detected. The first defect is a yarn pile in the slit of the yarn monitoring device 40 (defect of the yarn monitoring device 40), double threading, hooking of the yarn 14 in the first catching guide device 30 (defect of the yarn 14 caught by the first catching guide device 30), or the like.

The yarn accumulation in the slit of the yarn monitoring device 40 is a state in which the cut yarn 14 is accumulated in the slit, for example, or a state in which the unrooped yarn 14 is unwound and accumulated in the slit. In the yarn monitoring device 40, the yarn 14 passing through the slit is irradiated with light from the light projecting section, and the presence or absence of the yarn 14 is detected based on a change in the amount of light received by the light receiving section. Therefore, in the yarn monitoring device 40, when the yarn 14 is accumulated in the slit, no change in the amount of light occurs, and therefore the yarn 14 cannot be detected.

The double yarn is a phenomenon of trapping a midway portion of the yarn 14. Normally, the first catching guide device 30 catches the yarn end of the yarn 14 wound in the package 22. When the yarn 14 is caught at the middle portion, 2 yarns 14 may be drawn from the package 22. In this case, there is a possibility that the yarn 14 does not enter the slit of the yarn monitoring device 40.

The hooking of the yarn 14 in the first catching guide device 30 means that the yarn 14 is hooked to the upper yarn suction catching part 33, and the upper yarn sensor 60 always detects a defect of the yarn 14. The yarn 14 caught by the first catching guide 30 is guided to the piecing device 38, and an excess portion is cut. The cut portion is sucked and collected by the first catching guide 30. At this time, the cut yarn may be caught by a suction port or the like of the upper yarn suction catching part 33. In this case, since the cut yarn is detected by the upper yarn sensor 60, the upper yarn sensor 60 may always detect the yarn. Therefore, even in a state where the yarn 14 is not actually drawn from the package 22, the yarn 14 is detected by the upper yarn sensor 60. When determining that the first failure has occurred, the unit control unit 100 displays the occurrence of the first failure on the display screen 12a of the machine station control device 12.

The unit control unit 100 determines that the second defect has occurred when the detection signal indicates that the yarn 14 is not detected and the yarn defect signal indicates that the yarn 14 is detected. The second problem is a failure of the upper yarn sensor 60 (a problem with the upper yarn sensor 60) or a contamination of the translucent cover 50 provided in the tube portion 32. When determining that the second failure has occurred, the unit control unit 100 displays the occurrence of the second failure on the display screen 12a of the machine station control device 12.

As described above, in the automatic winder 1 according to the present embodiment, the unit control section 100 determines whether or not a defect related to the yarn splicing operation has occurred based on the detection results of the yarn monitoring device 40 and the upper yarn sensor 60. Thus, in the automatic winder 1, it is possible to determine whether or not the yarn 14 is successfully caught by the first catching guide device 30, and whether or not a trouble related to the yarn splicing operation has occurred. Therefore, in the automatic winder 1, the occurrence of a malfunction relating to the joint operation can be appropriately detected. As a result, the operator of the automatic winder 1 can recognize a trouble related to the joint operation.

In the automatic winder 1 of the present embodiment, a translucent cover 50 having translucency is provided on the tube portion 32 of the first catching guide 30. The upper yarn sensor 60 includes a light emitter 62 and a light receiver 63. The upper yarn sensor 60 detects the yarn 14 inside the tube portion 32 by receiving the light reflected by the yarn 14 from the light projected by the light projecting portion 62 toward the light-transmitting cover 50 in a state where the first capturing guide 30 is located at the capturing position, by the light receiving portion 63. In this configuration, since the light emitter 62 and the light receiver 63 are not provided in the tube 32 of the first capture guide 30, the wiring connected to the light emitter 62 and the light receiver 63 does not move. Therefore, deterioration of the wiring is suppressed, and thus, occurrence of a failure of the upper yarn sensor 60 due to deterioration of the wiring can be suppressed.

In the automatic winder 1 according to the present embodiment, the unit control unit 100 determines whether or not there is a defect of the yarn sensor 60, a defect of the yarn monitoring device 40, and a defect of the yarn 14 captured by the first capturing guide device 30 as a defect related to the yarn splicing operation. By determining whether or not any of these defects is present, defects occurring during the joint operation can be detected.

In the automatic winder 1 of the present embodiment, the machine station control device 12 has a display screen 12 a. The cell control unit 100 displays the occurrence of the first failure or the second failure on the display screen 12a when determining that the first failure or the second failure has occurred. In this configuration, it is possible to appropriately report the occurrence of a malfunction in the automatic winder 1 to the operator.

In the automatic winder 1 according to the present embodiment, the light projecting section 62 and the light receiving section 63 of the upper yarn sensor 60 are arranged such that an optical axis L2 indicating the optical axis of the light irradiated from the light projecting section 62 does not intersect the center C of the tube section 32. In this configuration, the angle formed by the light and the light-transmitting cover 50 can be reduced. This makes it difficult to reflect the light reflected by the surface of the light-transmitting cover 50 in a direction different from the direction of the light-receiving section 63, and therefore, the detection accuracy of the yarn 14 inside the tube section 32 can be improved.

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

In the above embodiment, the following embodiments are explained as an example: the unit control portion 100 determines that the yarn 14 is successfully caught by the first catching guide device 30 when the detection signal indicates that the yarn 14 is detected and the yarn defect signal indicates that the yarn 14 is detected. However, the unit control portion 100 may determine that the yarn 14 is successfully caught by the first catching guide device 30 when at least one of the detection signal and the yarn defect signal indicates that the yarn 14 is detected.

In the above embodiment, the following embodiments are explained as an example: when the unit control unit 100 determines that the first failure or the second failure has occurred, the display screen 12a of the machine station control device 12 displays that the first failure or the second failure has occurred. However, the method of reporting the occurrence of the first failure or the second failure is not limited to this. The occurrence of the first failure or the second failure may be reported by a lamp, a buzzer, or the like.

In the above embodiment, a mode in which the upper yarn sensor 60 detects the yarn 14 on the distal end side of the tube portion 32 is described as an example. However, the upper yarn sensor 60 may detect the yarn 14 on the base end side of the tube 32. The position at which the upper yarn sensor 60 detects the yarn 14 inside the tube portion 32 is not limited.

In the above embodiment, the following embodiments are explained as an example: the upper yarn sensor 60 includes a light projecting portion 62 and a light receiving portion 63, and the light projecting portion 62 and the light receiving portion 63 are attached to the winding portion 17. However, the light projecting section and the light receiving section 63 may be attached to the tube section 32.

In the above embodiment, a mode in which the yarn monitoring device 40 determines the presence or absence of the yarn 14 is described as an example. However, the presence or absence of the yarn 14 in the yarn monitoring device 40 may be determined by the unit control section 100. In this case, the yarn monitoring device 40 outputs a signal indicating the detection result of the sensor to the unit control section 100. The unit control section 100 determines the presence or absence of the yarn 14 based on the signal.

In the above embodiment, a mode in which the state of the yarn 14 is monitored by an optical sensor provided in the yarn monitoring device 40 is described as an example. However, the sensor of the yarn monitoring device 40 may be, for example, a capacitance type. In this case, the yarn monitor 40 detects a yarn defect based on a change in the electrostatic capacitance.

In the above embodiment, a case where the tension applying device 27 is a gate type has been described as an example. However, the tension applying device 27 may be a disk type, for example.

In the above embodiment, the embodiment in which the splicing device 38 is a splicing device has been described as an example. However, the joint device 38 may be a mechanical knotter, for example.

In the above embodiment, a mode in which the detection unit that detects the yarn 14 traveling along the yarn path is the yarn monitoring device 40 (yarn clearer) is described as an example. However, the detection unit that detects the yarn 14 traveling along the yarn path is not limited to this. The detection unit may be provided independently of the yarn monitoring device 40.

In the above embodiment, a description has been given of an example in which the display screen 12a and the input keys 12b are configured independently of each other in the station control device 12. However, for example, a touch panel type display device may be used as the machine table control device 12, and the display unit and the operation unit may be configured to be the same.

In the above embodiment, a mode in which the winding drum 20 is provided with the traverse groove and the yarn 14 is traversed by the traverse groove is described as an example. However, the traverse of the yarn 14 may be performed by an arm-type, belt-type, or rotary traverse mechanism. In this case, a roller without a traverse groove can be used as the auxiliary roller.

In the above embodiment, a mode in which the light-transmitting cover 50 is swingably provided on the pipe portion 32 of the first catching guide 30 is described as an example. However, the light-transmitting cover 50 may not be provided to be swingable (the opening 52 may be opened and closed) as long as it is configured to be able to close the opening 52.

In the above embodiment, a mode in which the textile machine is the automatic winder 1 is explained as an example. However, the textile machine may be an air spinning machine, an open-end spinning machine, or the like. In the case where the textile machine is an air-jet spinning machine, the yarn feeding section from which the yarn is drawn is a spinning device that twists a fiber bundle to produce the yarn.

Claims

1. A textile machine is provided with:

a yarn feeding unit from which a yarn is drawn;

a winding section for winding the yarn drawn out from the yarn feeding section to form a package;

a yarn splicing device for splicing the yarn on the yarn supply side with the yarn on the winding side;

a yarn catching and guiding device that sucks and catches the yarn on the winding section side into the tube portion and guides the yarn to the yarn splicing device;

a first detection unit that detects the yarn in the tube of the yarn catching and guiding device;

a second detection unit that is provided in a yarn path between the yarn feeding unit and the winding unit and detects the yarn traveling along the yarn path;

a success/failure determination unit configured to determine whether or not the yarn catching guide device successfully catches the yarn on the winding unit side based on a detection result of at least one of the first detection unit and the second detection unit; and

and a failure determination unit configured to determine whether or not a failure related to the joint operation has occurred based on the detection results of the first detection unit and the second detection unit.

2. The textile machine of claim 1,

the yarn feeding section is a support mechanism that supports a yarn feeding bobbin around which the yarn is wound.

3. The textile machine of claim 1,

the yarn supplying section is a spinning device that twists a fiber bundle to produce the yarn.

4. The textile machine of claim 1,

the second detecting unit is a yarn monitoring device that monitors a state of the yarn running along the yarn path.

5. The textile machine of claim 2,

6. The textile machine of claim 3,

7. The textile machine of claim 4,

the yarn monitoring device is a yarn defect detecting device for detecting a defect of the yarn based on a thickness change of the yarn.

8. The textile machine of claim 5,

9. The textile machine of claim 6,

10. The textile machine of any one of claims 1 to 9,

the tube portion of the yarn catching and guiding device is provided with a light-transmitting portion having light-transmitting properties,

the first detection unit includes a light projection unit and a light reception unit, and the light reception unit detects the yarn inside the tube by receiving light reflected by the yarn, the light projected toward the light transmission unit by the light projection unit, in a state where the yarn capturing guide is located at the capturing position.

11. The textile machine of any one of claims 1 to 9,

the defect determining unit determines whether or not at least one of a defect of the first detecting unit, a defect of the second detecting unit, and a defect of the yarn captured by the yarn capturing and guiding device is generated as a defect related to the yarn splicing operation.

12. The textile machine of claim 10,

13. The textile machine of any one of claims 1 to 9,

the device further includes a display unit that displays the occurrence of the failure when the failure determination unit determines that the failure has occurred.

14. The textile machine of claim 10,

15. The textile machine of claim 11,

16. The textile machine of claim 12,