JP2018002328A - Textile machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a textile machine in which occurrence of a problem concerning a yarn splicing operation can be suitably detected.SOLUTION: An automatic winder 1 comprises: a yarn splicing device 38 which performs yarn splicing between a yarn 14 on a yarn feeding part 15 side and a yarn 14 on a winding part 17 side; a first capture guide device 30 which sucks and captures the yarn 14 on the winding part 17 side in a pipe part 32, and introduces the yarn 14 into the yarn splicing device 38; a needle yarn sensor 60 which detects the yarn 14 in the pipe part 32 of the first capture guide device 30; a yarn monitoring device 40 which is provided on a yarn guide between the yarn feeding part 15 and the winding part 17, and detects the yarn 14 running on the yarn guide; a unit control part 100 which determines success or failure of capture of the yarn 14 on the winding part 17 side by the first capture guide device 30 on the basis of the detection result of at least one of the needle yarn sensor 60 and the yarn monitoring device 40; and a unit control part 100 which determines existence or absence of occurrence of a problem concerning a yarn splicing operation on the basis of the detection result of the needle yarn sensor 60 and the yarn monitoring device 40.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a textile machine.

  As a conventional textile machine, for example, a machine described in Patent Document 1 is known. The textile machine described in Patent Document 1 moves from a standby position to a catching position on the take-up unit side when the yarn is in a divided state, and sucks and catches the take-up yarn that is the yarn on the take-up unit side A winding yarn catching and guiding device having a moving catching portion, a detecting portion for detecting the winding yarn caught by the winding yarn catching and guiding device, and a yarn supply portion side yarn from which the winding yarn and the yarn are drawn out. A yarn joining device that performs the yarn joining operation.

International Publication No. 2015/029275

  In the above-described conventional textile machine, whether or not the winding yarn is caught in the winding yarn catching and guiding device is determined by detecting the presence or absence of the winding yarn inside the movement catching portion by the detection unit. However, in a textile machine, even if the winding yarn catching and guiding device succeeds in catching the winding yarn, the yarn joining operation in the yarn joining device is normally performed due to some other problem. There may not be. In such a case, it is preferable that the operator can know the occurrence of the trouble related to the yarn joining operation at an earlier stage from the viewpoint of the operation rate.

  An object of one aspect of the present invention is to provide a textile machine that can appropriately detect the occurrence of a defect related to a yarn joining operation.

  A textile machine according to one aspect of the present invention includes a yarn supply unit from which a yarn is drawn, a winding unit that winds the yarn drawn from the yarn supply unit to form a package, and a yarn on the yarn supply unit side. A yarn joining device for piecing with a yarn on the part side, a yarn catching and guiding device for sucking and catching the yarn on the winding unit side into the tube, and introducing the yarn into the yarn joining device, and a yarn catching and guiding device A first detection unit that detects a yarn in the tube portion, a second detection unit that is provided on a yarn path between the yarn supply unit and the winding unit, and that detects a yarn traveling on the yarn path, and a first detection unit And a success / failure determination unit for determining whether the yarn catching guide device captures the yarn on the winding unit side based on a detection result of at least one of the second detection unit, and a detection result 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 yarn joining operation has occurred.

  In the textile machine according to one aspect of the present invention, the defect determination unit determines whether or not a defect related to the yarn joining operation has occurred based on the detection results of the first detection unit and the second detection unit. Thereby, in the textile machine, it is possible to determine not only the success or failure of the yarn catching by the yarn catching and guiding device but also the presence or absence of the occurrence of a defect related to the yarn joining operation. Therefore, in the textile machine, it is possible to appropriately detect the occurrence of a problem related to the yarn joining operation. As a result, the operator of the textile machine can know a problem related to the yarn joining operation.

  In one embodiment, the yarn supplying unit may be a support mechanism that supports a yarn supplying bobbin around which a yarn is wound. In this configuration, the textile machine is configured as an automatic winder. Therefore, it can be determined whether there is a defect in the yarn joining operation in the automatic winder.

  In one embodiment, the yarn supply unit may be a spinning device that generates a yarn by twisting the fiber bundle. In this configuration, the textile machine is configured as a spinning machine. Therefore, it can be determined whether there is a defect in the yarn splicing operation in the spinning machine.

  In one embodiment, the second detector may be a yarn monitoring device that monitors the state of the yarn traveling on the yarn path. Usually, a textile machine is provided with a yarn monitoring device. Therefore, by using the second detection unit as the yarn monitoring device, it is possible to detect the yarn traveling on the yarn path in the existing configuration. Therefore, it is possible to determine whether there is a defect in the yarn joining operation without providing a special device.

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

  In one embodiment, the tube portion of the yarn catching and guiding device is provided with a light transmitting portion having translucency, and the first detecting portion includes a light projecting portion and a light receiving portion, and the yarn catching and guiding device. In the state where is positioned at the capture position, the light receiving unit receives the light reflected by the yarn from the light projected from the light projecting unit to the light transmitting unit, so that the yarn inside the tube unit may be detected. In this configuration, since the light projecting unit and the light receiving unit are not provided in the tube portion of the yarn catching and guiding device, the wiring connected to the light projecting unit and the light receiving unit does not move. For this reason, since the deterioration of the wiring is suppressed, it is possible to suppress the occurrence of the malfunction of the first detection unit due to the deterioration of the wiring.

  In one embodiment, the failure determination unit includes 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 guide device as a failure related to the yarn joining operation. The presence or absence of occurrence may be determined. By determining the presence or absence of any of these defects, a defect that occurs in the yarn joining operation can be detected.

  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. With this configuration, it is possible to appropriately notify the operator of the occurrence of a problem related to the yarn joining operation.

  According to one aspect of the present invention, it is possible to appropriately detect the occurrence of a defect related to the yarn joining operation.

FIG. 1 is a front view of an automatic winder according to an embodiment. FIG. 2 is a side view of the winding unit. FIG. 3 is a perspective view showing the winding unit and the first catching and guiding device. FIG. 4 is a perspective view showing the pipe portion. FIG. 5 is a diagram illustrating a cross-sectional configuration of the pipe portion.

  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 equivalent elements will be denoted by the same reference numerals, and redundant description will be omitted.

  As shown in FIG. 1, the automatic winder (textile machine) 1 includes a plurality of winding units 10 arranged side by side, a machine base control device 12, and a doffing device 13 as main components.

  The machine base control device 12 can communicate with each winding unit 10. An operator of the automatic winder 1 can manage a plurality of winding units 10 collectively by appropriately operating the machine base control device 12. The machine base control device 12 is provided with a display screen (display unit) 12a and input keys 12b. The display screen 12a can display information related to the setting contents and / or state of the winding unit 10. When the operator performs an appropriate operation using the input key 12b, the setting operation of the winding unit 10 can be performed.

  Each of the winding units 10 unwinds the yarn 14 from the yarn supplying bobbin 16 and winds the yarn 14 around the winding bobbin 19 while traversing the yarn 14. As described above, the winding unit 10 forms the package 22.

  Each winding unit 10 includes a unit controller 100 on one side (the right side in FIG. 1) such as the yarn feeding bobbin 16 and the package 22. The unit controller 100 includes, for example, a CPU (Central Processing Unit) and a ROM (Read Only Memory). The ROM stores a program for controlling each configuration of the winding unit 10. The CPU executes a program stored in the ROM.

  The doffing device 13 travels to the position of the winding unit 10 when the package 22 becomes full in each winding unit 10 (a state in which a specified amount of yarn is wound), and removes the full winding package. At the same time, an empty winding bobbin 19 is set.

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

  The yarn supplying section 15 is a support mechanism that supports the yarn supplying bobbin 16 placed on a conveyance tray (not shown) at a predetermined position. As a result, 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 supplying 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 supports the take-up bobbin 19 (or the package 22) in a rotatable manner by sandwiching the take-up bobbin 19 at the rotation support portion. The cradle 18 can be switched between a state in which the supporting 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 traverses the yarn 14 on the surface of the package 22 and rotates the package 22. The winding drum 20 is rotationally driven by a drum drive motor 21. With the outer periphery of the package 22 in contact with the winding drum 20, the winding drum 20 is driven to rotate, whereby the package 22 is driven to rotate. Further, 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 feeding bobbin 16 is wound around the surface of the package 22 while being traversed with a constant width by the traverse groove. Thereby, the package 22 having a constant winding width can be formed.

  Each winding unit 10 includes, in order from the yarn supplying unit 15 side, the unwinding assisting device 25, the tension applying device 27, and the yarn joining device 38 in the yarn traveling path between the yarn supplying unit 15 and the winding unit 17. And a yarn monitoring device (second detection unit, yarn defect detecting device) 40 are disposed. In the vicinity of the yarn joining device 38, a first catching and guiding device (yarn catching and guiding device) 30 and a second catching and guiding device 34 are arranged. 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 cover the core tube of the yarn feeding bobbin 16. The restricting member 26 has a substantially cylindrical shape and is disposed so as to contact a balloon formed on the yarn layer of the yarn supplying bobbin 16. The balloon is a portion where the yarn 14 unwound from the yarn feeding bobbin 16 is swung around by centrifugal force. By bringing the regulating member 26 into contact with the balloon, the balloon 14 is brought into contact with the yarn 14 of the balloon portion to prevent the yarn 14 from being excessively swung. Thereby, the yarn 14 can be appropriately unwound from the yarn supplying bobbin 16.

  The tension applying device 27 applies a predetermined tension to the traveling yarn 14. In the present embodiment, the tension applying device 27 is configured by 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 are engaged with each other. By passing the yarn 14 while bending the meshed comb teeth, an appropriate tension can be applied to the yarn 14 and the quality of the package 22 can be improved.

  The yarn joining device 38 includes a yarn 14 (lower yarn) on the yarn feeding unit 15 side and a winding unit when the yarn 14 is divided between the yarn feeding unit 15 and the winding unit 17 for some reason. The yarn 14 (upper yarn) on the 17th side is spliced. In the present embodiment, the yarn joining device 38 is configured as a splicer device that twists yarn ends together by a swirling air flow generated by compressed air.

  The first catching and guiding device 30 is a device that catches the upper yarn when the yarn 14 is in a divided state. The first catching and guiding device 30 includes a shaft part 31, a pipe part (pipe part) 32, and an upper thread suction catching part 33. Under the control of the unit control unit 100, the pipe unit 32 and the upper thread suction capturing unit 33 capture from the standby position (solid line in FIG. 2) on the yarn supplying unit 15 side to the winding unit 17 side with the shaft unit 31 as the turning center. It can be turned (moved) to a position (a chain line in FIG. 2). The first catching and guiding device 30 is connected to a negative pressure source (not shown), and can generate a suction flow at the upper thread suction catching portion 33 (specifically, the suction port at the tip). With this configuration, the upper thread suction capturing unit 33 can guide the upper thread to the yarn joining device 38 by capturing the upper thread at the capturing position and returning to the standby position.

  As shown in FIG. 3, the first catching and guiding device 30 is provided with an upper thread sensor (first detection section) 60 that detects the thread 14 inside the pipe section 32. The upper thread sensor 60 includes a case 61, a light projecting unit 62, and a light receiving unit 63.

  The case 61 is supported on the winding unit 17 by a support member 64. The case 61 supports the light projecting unit 62 and the light receiving unit 63. The light projecting unit 62 includes a light emitting element such as a light emitting diode. The light projecting unit 62 irradiates light to a light transmitting cover (light transmitting unit) 50, which will be described later, provided on the pipe unit 32. The light irradiated by the light projecting unit 62 is reflected by the yarn 14 when the yarn 14 is present inside the pipe portion 32.

  The light receiving unit 63 includes a light receiving element such as a photodiode. The light receiving unit 63 receives light reflected by the thread 14 (reflected light), and outputs an electric signal having a current or voltage corresponding to the amount of light. A calculation unit (not shown) is provided inside the case 61. Based on the detection result of the light receiving unit 63, the calculation unit determines whether or not the first capture guide device 30 has captured the yarn 14 on the winding unit 17 side. Specifically, the calculation unit analyzes the electrical signal output from the light receiving unit 63 and determines the presence or absence of the yarn 14 inside the pipe unit 32. The calculation unit outputs a detection signal indicating a determination result (detection result) on the presence / absence of the yarn 14 inside the pipe unit 32 to the unit control unit 100.

  As described above, the pipe portion 32 is provided with the light transmission cover 50 as shown in FIG. The light transmitting cover 50 is formed of a light transmitting member (for example, acrylic or polycarbonate). The light transmission cover 50 is a member for closing the opening 52 provided in the pipe portion 32. The opening 52 is a hole that penetrates the wall portion of the pipe portion 32, and is disposed on the tip end side (upper thread suction capturing portion 33 side) of the pipe portion 32. That is, the upper thread sensor 60 detects the thread 14 located on the tip end side of the pipe portion 32. The light transmission cover 50 is swingably attached to the pipe portion 32, 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 thread sensor 60 are arranged on one side of the center of the pipe portion 32 in the package width direction (the imaginary line L <b> 1 in FIG. 5). . Specifically, the light projecting unit 62 and the light receiving unit 63 are arranged so that the optical axis L <b> 2 indicating the optical axis of the light emitted from the light projecting unit 62 does not intersect the center C of the pipe portion 32.

  Similar to the first catching and guiding device 30, the second catching and guiding device 34 includes a shaft portion 35, a pipe portion 36, and a lower thread suction catching portion 37. Similarly to the upper thread suction catching section 33, the lower thread suction catching section 37 can turn around the shaft portion 35 and can generate a suction flow. With this configuration, the second catching and guiding device 34 can catch the lower yarn and guide it to the yarn joining device 38.

  The yarn monitoring device 40 monitors the state of the yarn 14 traveling on 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, an abnormal thickness of the yarn 14 and / or foreign matter contained in the yarn 14 as a yarn defect. The yarn monitoring device 40 also detects yarn breakage, that is, the presence or absence of the yarn 14 on the yarn path. The yarn monitoring device 40 has a slit through which the yarn 14 passes on the yarn path of the yarn 14, and monitors the yarn 14 passing through the slit with an optical sensor (not shown). When the yarn monitoring device 40 detects a yarn defect, the yarn monitoring device 40 outputs a yarn defect detection signal to the unit controller 100. A cutter 41 for cutting the yarn 14 is provided in the vicinity of the yarn monitoring device 40. The cutter 41 is operated by the yarn monitoring device 40.

  As described above, the winding unit 10 can form the package 22 by winding the yarn 14 around the winding bobbin 19. During the yarn joining operation in the yarn joining device 38, the yarn 14 on the winding unit 17 side is caught by the first catching and guiding device 30, and the yarn 14 on the yarn feeding unit 15 side is caught by the second catching and guiding device 34. Be captured. The yarn 14 caught by the first catching and guiding device 30 and the second catching and guiding device 34 is guided to the yarn joining device 38. At this time, the yarn 14 is positioned in the slit of the yarn monitoring device 40. The yarn joining device 38 performs yarn joining of the introduced yarn 14.

  Next, the operation of the unit controller 100 will be described in detail. The unit control unit 100 functions as a success / failure determination unit that determines whether or not the yarn 14 on the winding unit 17 side is captured by the first capture guide device 30 and a failure determination unit that determines a failure of the automatic winder 1.

  Based on the detection signal output from the calculation unit of the upper thread sensor 60 and the yarn defect signal output from the yarn monitoring device 40, the unit control unit 100 is provided on the winding unit 17 side by the first catching and guiding device 30. The success or failure of catching the yarn 14 and the presence or absence of a defect related to the yarn splicing operation are determined. When the yarn 14 is cut and the yarn splicing operation is started, the unit control unit 100 determines whether or not the yarn 14 on the winding unit 17 side is caught by the first catching and guiding device 30 and a defect related to the yarn splicing operation. Judgment of the presence or absence of.

  When the unit control unit 100 indicates that the yarn 14 is detected in the detection signal and indicates that the yarn 14 is detected in the yarn defect signal, the unit controller 100 causes the first catching and guiding device 30 to detect the yarn 14. It is determined that 14 has been successfully captured. When the unit controller 100 determines that the first catching and guiding device 30 has successfully caught the yarn 14, the unit controller 100 starts the yarn joining of the yarn 14 in the yarn joining device 38.

  When the unit control unit 100 indicates that 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 controller 100 causes the first catching and guiding device 30 to execute the yarn. 14 is determined to have failed to capture. When the unit controller 100 determines that the catching of the yarn 14 has failed in the first catching and guiding device 30, the unit controller 100 causes the first catching and guiding device 30 to catch the yarn 14 again.

  The unit controller 100 indicates that the yarn 14 is detected in the detection signal, and when the yarn defect signal indicates that the yarn 14 is not detected, the first defect has occurred. Judge. The first defect is a clogging of a slit in the yarn monitoring device 40 (failure of the yarn monitoring device 40), double exit, or catching of the yarn 14 in the first catching and guiding device 30 (captured by the first catching and guiding device 30). And the like).

  The clogging of the slit in the yarn monitoring device 40 is a defect such as a state where the cut yarn 14 is clogged with the thread waste or a state where the slackened yarn 14 is clogged with the slit. In the yarn monitoring device 40, light from the light projecting unit is irradiated to the yarn 14 passing through the slit, and the presence or absence of the yarn 14 is detected based on the change in the amount of light received by the light receiving unit. Therefore, in the yarn monitoring device 40, if the yarn 14 is clogged in the slit, the amount of light does not change, and thus the yarn 14 cannot be detected.

  Double squeezing is a phenomenon in which a middle portion of the yarn 14 is captured. Usually, the first catching and guiding device 30 catches the yarn end of the yarn 14 wound around the package 22. When the middle part of the yarn 14 is captured, the two yarns 14 may be pulled out from the package 22. In this case, a problem that the yarn 14 does not enter the slit of the yarn monitoring device 40 may occur.

  The catching of the yarn 14 in the first catching and guiding device 30 is a problem that the yarn 14 is caught on the upper yarn suction catching portion 33 and the yarn 14 is always detected by the upper yarn sensor 60. When the yarn 14 caught by the first catching and guiding device 30 is guided to the yarn joining device 38, the excess portion is cut. The cut portion is sucked and collected by the first catching and guiding device 30. At this time, the cut yarn may be caught by the suction port of the upper yarn suction catching portion 33 or the like. In this case, since the cut yarn is detected by the upper yarn sensor 60, the upper yarn sensor 60 can always detect the yarn. Therefore, even when the yarn 14 is not actually pulled out from the package 22, the upper yarn sensor 60 detects the yarn 14. When the unit controller 100 determines that the first defect has occurred, the unit controller 100 displays on the display screen 12a of the machine control device 12 that the first defect has occurred.

  When the unit control unit 100 indicates that the yarn 14 is not detected in the detection signal and indicates that the yarn 14 is detected in the yarn defect signal, the second defect has occurred. Judge. The second defect is a failure of the upper thread sensor 60 (failure of the upper thread sensor 60) or occurrence of dirt on the light transmission cover 50 provided in the pipe portion 32. If the unit controller 100 determines that the second problem has occurred, the unit controller 100 displays on the display screen 12a of the machine control device 12 that the second problem has occurred.

  As described above, in the automatic winder 1 according to the present embodiment, the unit control unit 100 determines whether or not a defect related to the yarn joining operation has occurred based on the detection results of the yarn monitoring device 40 and the upper yarn sensor 60. To do. Thereby, in the automatic winder 1, not only the success or failure of the catching of the yarn 14 by the first catching and guiding device 30 but also the presence / absence of the occurrence of a defect related to the yarn joining operation can be determined. Therefore, the automatic winder 1 can appropriately detect the occurrence of a problem related to the yarn joining operation. As a result, the operator of the automatic winder 1 can know a problem related to the yarn joining operation.

  In the automatic winder 1 according to the present embodiment, the pipe portion 32 of the first catching and guiding device 30 is provided with a light transmissive cover 50 having translucency. The upper thread sensor 60 includes a light projecting unit 62 and a light receiving unit 63. In the upper thread sensor 60, the light receiving unit 63 receives the light reflected by the thread 14 when the light projecting unit 62 projects the light transmitting cover 50 in a state where the first capturing guide device 30 is located at the capturing position. Thus, the yarn 14 inside the pipe portion 32 is detected. In this configuration, since the light projecting unit 62 and the light receiving unit 63 are not provided in the pipe portion 32 of the first catching and guiding device 30, the wiring connected to the light projecting unit 62 and the light receiving unit 63 does not move. Therefore, since the deterioration of the wiring is suppressed, it is possible to suppress the occurrence of the malfunction of the upper thread sensor 60 due to the deterioration of the wiring.

  In the automatic winder 1 according to the present embodiment, the unit controller 100 is captured by the first catching and guiding device 30 as a malfunction related to the yarn splicing operation, the malfunction of the upper thread sensor 60, the malfunction of the yarn monitoring device 40, and the first catching and guiding device 30. It is determined whether or not the yarn 14 is defective. By determining the presence or absence of any of these defects, a defect that occurs in the yarn joining operation can be detected.

  In the automatic winder 1 according to the present embodiment, the machine control device 12 has a display screen 12a. When the unit controller 100 determines that the first problem or the second problem has occurred, the unit controller 100 displays on the display screen 12a that the first problem or the second problem has occurred. With this configuration, it is possible to appropriately notify the operator that a problem has occurred in the automatic winder 1.

  In the automatic winder 1 according to the present embodiment, the light projecting unit 62 and the light receiving unit 63 of the upper thread sensor 60 are configured such that the optical axis L2 indicating the optical axis of the light emitted from the light projecting unit 62 is the center C of the pipe unit 32. It is arranged not to intersect. In this configuration, the angle formed between the light and the light transmission cover 50 can be reduced. As a result, the light reflected from the surface of the light transmission cover 50 is less likely to be reflected by the light reflected in the direction different from that of the light receiving portion 63, so that the detection accuracy of the yarn 14 inside the pipe portion 32 can be improved.

  As mentioned above, although embodiment of this invention has been described, this invention is not necessarily limited to embodiment mentioned above, A various change is possible in the range which does not deviate from the summary.

  In the above embodiment, when the unit control unit 100 indicates that the yarn 14 is detected in the detection signal, and the yarn defect signal indicates that the yarn 14 is detected, the first control unit 100 An example in which the catching guide device 30 determines that the catching of the yarn 14 has succeeded has been described as an example. However, when the unit controller 100 indicates that the yarn 14 is detected in at least one of the detection signal and the yarn defect signal, the unit controller 100 determines that the yarn 14 has been successfully captured by the first capture guide device 30. May be.

  In the above embodiment, when the unit controller 100 determines that the first problem or the second problem has occurred, the display screen 12a of the machine control device 12 indicates that the first problem or the second problem has occurred. The form displayed on the screen has been described as an example. However, the means for notifying 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 notified by a lamp, a buzzer, or the like.

  In the above embodiment, an example in which the upper thread sensor 60 detects the thread 14 on the tip end side of the pipe portion 32 has been described as an example. However, the upper thread sensor 60 may detect the thread 14 on the proximal end side of the pipe portion 32. The position where the upper thread sensor 60 detects the thread 14 inside the pipe portion 32 is not limited.

  In the above embodiment, the upper thread sensor 60 has the light projecting unit 62 and the light receiving unit 63, and the light projecting unit 62 and the light receiving unit 63 are attached to the winding unit 17 as an example. However, the light projecting unit and the light receiving unit 63 may be attached to the pipe unit 32.

  In the embodiment described above, an example in which the presence or absence of the yarn 14 is determined in the yarn monitoring device 40 has been described. However, the unit controller 100 may determine whether or not the yarn 14 is present in the yarn monitoring device 40. In this case, the yarn monitoring device 40 outputs a signal indicating the detection result of the sensor to the unit control unit 100. The unit controller 100 determines the presence or absence of the yarn 14 based on the signal.

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

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

  In the embodiment described above, an example in which the yarn joining device 38 is a splicer device has been described. However, the yarn joining device 38 may be, for example, a mechanical knotter.

  In the embodiment described above, an example in which the detection unit that detects the yarn 14 traveling on the yarn path is the yarn monitoring device 40 (clearer) has been described. However, the detection unit that detects the yarn 14 traveling on the yarn path is not limited to this. The detection unit may be provided separately from the yarn monitoring device 40.

  In the said embodiment, the form with which the display screen 12a and the input key 12b were comprised separately in the machine base control apparatus 12 was demonstrated to an example. However, for example, in the machine control device 12, the display unit and the operation unit may be configured as the same device by using a touch panel display device.

  In the above embodiment, the traverse groove is formed in the winding drum 20, and the embodiment in which the yarn 14 is traversed by the traverse groove has been described as an example. However, the yarn 14 may be traversed by an arm-type, belt-type, or rotary-type traverse mechanism. In this case, a roller in which no traverse groove is formed can be used as the auxiliary roller.

  In the above-described embodiment, an example in which the light transmission cover 50 is swingably provided on the pipe portion 32 of the first capture guide device 30 has been described as an example. However, the light transmission cover 50 may not be provided so as to be swingable (the opening 52 can be opened and closed) as long as the opening 52 is closed.

  In the embodiment described above, an example in which the textile machine is the automatic winder 1 has been described as an example. However, the textile machine may be an air spinning machine or an open-end spinning machine. When the textile machine is an air spinning machine, the yarn supply unit from which the yarn is drawn out is a spinning device that generates a yarn by twisting the fiber bundle.

  DESCRIPTION OF SYMBOLS 1 ... Automatic winder (textile machine), 14 ... Yarn, 15 ... Yarn supply part (yarn supply part), 17 ... Winding part, 22 ... Package, 30 ... 1st catching guide apparatus (yarn catching guide apparatus), 38 ... Yarn joining device, 40 ... Yarn monitoring device (second detection unit), 50 ... Light transmission cover (light transmission unit), 60 ... Upper thread sensor (first detection unit), 62 ... Light projection unit, 63 ... Light reception unit, 100: Unit control unit.

Claims (8)

A thread supply section from which the thread is drawn,
A winding unit that winds up the yarn drawn from the yarn supply unit to form a package;
A yarn joining device for joining the yarn on the yarn supply unit side and the yarn on the winding unit side;
A yarn catching and guiding device for sucking and catching the yarn on the winding portion side into a pipe portion and introducing the yarn into the yarn joining device;
A first detection unit for detecting the yarn in the tube portion of the yarn catching and guiding device;
A second detection unit that is provided on a yarn path between the yarn supply unit and the winding unit and detects the yarn traveling on the yarn path;
A success / failure determination unit that determines whether or not the yarn is caught on the winding unit side by the yarn catching and guiding device based on a detection result of at least one of the first detection unit and the second detection unit;
A textile machine comprising: a failure determination unit that determines whether or not a failure relating to a yarn splicing operation has occurred based on detection results of the first detection unit and the second detection unit.   The textile machine according to claim 1, wherein the yarn supply unit is a support mechanism that supports a yarn supplying bobbin around which the yarn is wound.   The textile machine according to claim 1, wherein the yarn supply unit is a spinning device that generates a yarn by twisting a fiber bundle.   The textile machine according to any one of claims 1 to 3, wherein the second detection unit is a yarn monitoring device that monitors a state of the yarn traveling on the yarn path.   The textile machine according to claim 4, wherein the yarn monitoring device is a yarn defect detection device that detects a defect of the yarn from a change in thickness of the yarn. The tube portion of the yarn catching and guiding device is provided with a light transmitting portion having translucency,
The first detection unit includes a light projecting unit and a light receiving unit, and the light projected by the light projecting unit to the light transmitting unit in the state where the yarn catching guide device is located at the catching position is the yarn. The textile machine according to any one of claims 1 to 5, wherein the light receiving unit receives the reflected light to detect the yarn inside the tube unit.   The defect determination unit includes at least one of the defect of the first detection unit, the defect of the second detection unit, and the defect of the yarn captured by the yarn capture guide device as the defect related to the yarn joining operation. The textile machine as described in any one of Claims 1-6 which judges the presence or absence of generation | occurrence | production.   The textile machine according to any one of claims 1 to 7, further comprising a display unit that displays that a defect has occurred when the defect determination unit determines that a defect has occurred.

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