JP2015174748A - Thread take-up device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a thread take-up machine in which a thread sensor can be protected from heat generated in a heating unit of a heating-type thread piecing device.SOLUTION: An automatic winder comprises a take-up unit, a unit control part, a thread length detection sensor 35 and a thread thickness detection sensor 34, a thread piecing device 33, and a heat diffusion member 80. The take-up unit forms a package by taking up a thread. The unit control part controls the take-up unit. The thread length detection sensor 35 and the thread thickness detection sensor 34 are disposed on a thread guide of the thread to be taken up by the take-up unit, detects the state of the thread, and sends the detection results to the unit control part. The thread piecing device 33 is a heating-type thread piecing device that pieces threads by a heated air stream. The head diffusion member 80 is disposed between the thread length detection sensor 35 and the thread thickness detection sensor 34 and the position of the thread piecing device 33, and diffuses heat radiation energy generated from the thread piecing device 33 by heat conduction.

Description

  The present invention relates to a yarn winding device to which a heating type yarn joining device can be attached or has been attached.

  BACKGROUND ART A yarn winding device such as an automatic winder includes a yarn joining device that joins (yields) the divided yarn ends when the yarn is divided for some reason during winding. The yarn joining device, for example, jets a swirling flow generated using compressed air from a yarn joining nozzle, and twists the yarn ends together by causing the swirling flow to act on the yarn end.

  Moreover, in the yarn joining device using the compressed air, a configuration (heating type yarn joining device) further provided with a heating unit is known. The heating unit preheats the compressed air ejected from the yarn splicing nozzle. With this configuration, the yarn ends can be twisted together using a high-temperature swirling flow. Therefore, when joining yarns such as wool yarns, optimum yarn joining conditions can be set.

  Patent Document 1 discloses a heating type yarn splicing device of this type. The yarn splicing device of Patent Document 1 includes a base. A splicing head, a pipe mounting plate, and the like are attached to the base. Moreover, the yarn splicing device of Patent Document 1 includes an insulating cover for separating the base from a heat source (heating unit).

Japanese Patent Publication No. 7-84301

  Incidentally, sensors such as a yarn length detection sensor and a yarn thickness detection sensor are generally arranged in the vicinity of the yarn joining device. These sensors include a control board (relay control board) for detecting the state of the yarn and transmitting the detection result to the unit control unit.

  Here, when a heating type yarn joining device is employed, it is conceivable that the heat generated in the heating unit affects the control board. However, Patent Document 1 only discloses a structure that separates the base from the heat source, and does not disclose a configuration that protects the control device from the heat source.

  Note that the control board is vulnerable to heat, and is affected by the heating unit, thereby reducing the life of the sensor and reducing the performance of the sensor. In particular, the yarn length detection sensor and the yarn thickness detection sensor described above are provided with an optical sensor, and the optical sensor is vulnerable to heat. Therefore, also in this respect, the life of the sensor is reduced or the performance of the sensor is reduced. Or

  The present invention has been made in view of the above circumstances, and a main object thereof is to provide a yarn winding machine capable of protecting a yarn sensor from heat generated in a heating portion of a heating type yarn joining device.

Means and effects for solving the problems

  The problems to be solved by the present invention are as described above. Next, means for solving the problems and the effects thereof will be described.

  According to an aspect of the present invention, a yarn winding device having the following configuration is provided. That is, the yarn winding device includes a winding unit, a control unit, a yarn sensor, a yarn joining device, and a heat diffusion member. The winding unit winds a yarn to form a package. The control unit controls the winding unit. The yarn sensor is disposed on the yarn path of the yarn wound by the winding unit, detects the state of the yarn, and transmits the detection result to the control unit. The yarn joining device joins yarns by an air flow. The yarn joining device is a heating type yarn joining device that joins yarns by a heated air flow, or can be replaced with a heated type yarn joining device. The heat diffusing member is disposed between the yarn sensor and the position of the heating type yarn joining device that has been installed or replaced, and the heat radiation energy generated from the heating type yarn joining device is transferred by heat conduction. Spread.

  Thereby, it is possible to prevent the heat generated by the heating type yarn joining device from being transmitted to the heat-sensitive yarn sensor. Therefore, it is possible to prevent the performance and life of the yarn sensor from decreasing.

  In the yarn winding device, it is preferable that the yarn sensor is disposed on the yarn path immediately downstream of the position of the heating type yarn joining device when the yarn sensor is installed or replaced.

  As a result, even when the distance between the heating type yarn splicing device and the yarn sensor is reduced, the influence of heat is small, so that the size can be reduced by reducing the interval between parts.

  In the yarn winding device, it is preferable that the heat diffusion member is disposed between the yarn sensor and a position of a heating unit of the heating type yarn joining device when installed or replaced.

  Thereby, the yarn sensor can be directly protected from the portion (heating portion) where heat is generated.

  In the yarn winding device, it is preferable that the heat diffusion member is a plate member and is arranged at a distance from the yarn sensor.

  Thereby, since the volume which a thermal-diffusion member occupies can be made small, the increase in apparatus size can be suppressed or the change of a layout can be made unnecessary. Further, by disposing the heat diffusing member away from the yarn sensor, the heat of the heat diffusing member can be prevented from being transmitted to the yarn sensor by heat conduction.

  In the yarn winding device, the outside of the yarn sensor is preferably formed of a case formed of a thermoplastic resin.

  As a result, the handling of the yarn sensor can be improved and thermal deformation of the case made of thermoplastic resin can be prevented.

  In the yarn winding device, an optical sensor that monitors the state of the yarn and is arranged on the yarn path of the yarn wound by the winding unit in the case, and a processing signal obtained by processing the detection signal of the optical sensor. It is preferable that a relay control board for transmitting to the control unit is accommodated.

  Thereby, the heat-sensitive optical sensor and the substrate can be protected from the heat of the heating type yarn joining device.

  In the yarn winding device, the heat diffusing member is preferably made of metal.

  Thereby, since a metal has high heat conductivity, a more effective effect can be exhibited.

  In the yarn winding device, it is preferable that the material of the heat diffusing member is mainly composed of aluminum.

  Thereby, in addition to the high heat conductivity, the heat diffusing member can be reduced in weight.

  In the yarn winding device, the yarn sensor preferably transmits a processing signal for determining a traveling length of the yarn to the control unit.

  Thereby, since it is hard to receive the influence of a heat | fever, the traveling length of a thread | yarn can be calculated | required correctly.

  In the yarn winding device, it is preferable that the yarn sensor transmits a processing signal for determining a running length of the yarn to the control unit based on a principle of a spatial filter method.

  Thereby, the processing signal for determining the running length of the yarn can be generated and transmitted with a simple configuration.

The front view which shows the whole structure of the automatic winder which concerns on one Embodiment of this invention. The front view of a winder unit. The perspective view which shows the vicinity of a yarn splicing device. The perspective view which shows the structure inside a yarn length detection sensor. The perspective view which shows the attachment method of a thread length sensor and a heat shielding member.

  Preferred embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 1, an automatic winder (yarn winding device) 1 according to an embodiment of the present invention is arranged at a plurality of winder units (yarn winding units) 10 arranged side by side and at one end in the arranged direction. The machine base control unit 11 is provided.

  The machine base control unit 11 includes a display device 12 capable of displaying information related to each winder unit 10, an instruction input unit 13 for an operator to input various instructions to the machine base control unit 11, and the like. An operator of the automatic winder 1 can manage a plurality of winder units 10 collectively by confirming various information displayed on the display device 12 and appropriately operating the instruction input unit 13.

  Each winder unit 10 is configured to unwind the yarn 21 from the yarn supplying bobbin 20 and wind it back to the winding bobbin 22. A state in which the yarn 21 is wound around the winding bobbin 22 is referred to as a package 23. In the following description, “upstream side” and “downstream side” refer to the upstream side and the downstream side when viewed in the traveling direction of the yarn 21.

  As shown in FIG. 2, the winder unit 10 includes a yarn supplying unit 25 and a winding unit 26.

  The yarn supplying section 25 can hold the yarn supplying bobbin 20 for supplying the yarn 21 in a substantially upright state. The winding unit 26 includes a cradle 27, a winding drum 28, and a cover unit 29.

  The cradle 27 supports the take-up bobbin 22 to be rotatable. The cradle 27 can bring the peripheral surface of the supported winding bobbin 22 into contact with the outer peripheral surface of the winding drum 28. The take-up drum 28 is disposed opposite to the take-up bobbin 22 and is driven to rotate by a drum drive motor 53.

  A reciprocating spiral traverse groove 28 a is formed on the outer peripheral surface of the winding drum 28 in order to traverse the yarn 21 wound around the winding bobbin 22. The take-up drum 28 is connected to the output shaft of the drum drive motor 53 and is driven to rotate by the drum drive motor 53. When the winding drum 28 is rotationally driven in a state where the yarn 21 is introduced into the traverse groove 28 a, the package 23 in contact with the winding drum 28 is driven to rotate, and the yarn 21 is formed on the outer peripheral surface of the package 23. Can be wound while traversing. Thereby, a thread layer is formed on the surface of the package 23.

  The cover part 29 is a metal plate-like body, and is formed so as to surround the track of the thread 21 to be traversed. The cover portion 29 guides the yarn 21 by contacting the yarn 21 to be traversed.

  Each winder unit 10 includes a unit controller 30. The unit control unit 30 includes hardware such as a CPU, ROM, and RAM, and software such as a control program stored in the RAM. The hardware and software cooperate to control each component of the winder unit 10. The unit control unit 30 of each winder unit 10 is configured to be able to communicate with the machine base control unit 11. As a result, the operation of each winder unit 10 can be centrally managed by the machine control unit 11.

  In the winder unit 10, in the yarn traveling path between the yarn supplying unit 25 and the winding unit 26, the unwinding auxiliary device 31, the tension applying device 32, the yarn joining device 33, and the yarn are sequentially arranged from the upstream side. A length detection sensor (yarn sensor) 35 and a yarn thickness detection sensor (yarn sensor) 34 are arranged.

  The unwinding assisting device 31 includes a regulating member 31 a that can be put on the core tube of the yarn feeding bobbin 20. The restricting member 31 a is configured in a substantially cylindrical shape, and is disposed so as to contact a balloon formed on the yarn layer upper portion of the yarn feeding bobbin 20. The balloon is a portion where the yarn 21 unwound from the yarn supplying bobbin 20 is swung by centrifugal force. By bringing the regulating member 31a into contact with the balloon, tension is applied to the yarn of the balloon portion, and the yarn 21 is prevented from being swung excessively. Accordingly, the yarn 21 can be appropriately unwound from the yarn supplying bobbin 20.

  The tension applying device 32 applies a predetermined tension to the traveling yarn 21. The tension applying device 32 of the present embodiment employs a gate type device in which movable comb teeth are arranged with respect to fixed comb teeth. An appropriate tension is applied to the thread 21 by allowing the thread 21 to pass while being bent between the comb teeth in the meshed state. For the tension applying device 32, for example, a disk type can be adopted in addition to the gate type.

  When the yarn 21 between the yarn feeding bobbin 20 and the package 23 is in a divided state for some reason, the yarn joining device 33 performs a lower yarn on the yarn feeding bobbin 20 side and an upper yarn on the package 23 side. Join the yarn. In the present embodiment, the yarn joining device 33 twists the yarn ends together by a swirling air flow generated by heated compressed air. Details of the configuration of the yarn joining device 33 will be described later.

  In the height direction of the winder unit 10, on the lower side and upper side of the yarn joining device 33, a lower yarn catching member 54 that catches and guides a yarn (lower yarn) on the yarn feeding bobbin 20 side, and a yarn on the package 23 side. And an upper thread catching member 55 for catching and guiding (upper thread). The lower thread catching member 54 includes a lower thread catching pipe 56 connected to a negative pressure source (not shown) and a suction port 57 at the tip. The upper thread catching member 55 includes an upper thread catching pipe 58 connected to a negative pressure source (not shown) and a suction mouth 59 at the tip. With this configuration, a suction flow can be applied to the suction port 57 and the suction mouth 59. Further, the lower thread catching pipe 56 and the upper thread catching pipe 58 each have a root portion supported rotatably, and can rotate in the vertical direction.

  When the yarn 21 is split between the yarn feeding bobbin 20 and the package 23, the lower yarn catching member 54 catches the lower yarn on the yarn feeding bobbin 20 side and introduces it into the yarn joining device 33, and the upper yarn The upper thread on the package 23 side is captured by the capturing member 55 and introduced into the yarn joining device 33. By driving the yarn joining device 33 in this state, the upper yarn and the lower yarn are joined, and the yarn 21 is made continuous between the yarn feeding bobbin 20 and the package 23. Thereby, winding of the thread | yarn 21 to the package 23 can be restarted.

  The yarn thickness detection sensor 34 monitors the quality of the traveling yarn 21 with an optical sensor (not shown), and detects a yarn defect (location where the yarn 21 is abnormal) included in the yarn 21. A cutter (not shown) for cutting the yarn 21 when the yarn thickness detection sensor 34 detects a yarn defect is provided in the vicinity of the yarn thickness detection sensor 34.

  The yarn length detection sensor 35 is a device that detects the yarn length of the yarn 21 wound around the package 23 in a non-contact manner. The yarn length detection sensor 35 is configured to detect the fluff amount of the yarn 21, calculate the movement amount of the yarn 21, and detect the yarn length. Details of the yarn length detection sensor 35 will be described later.

  Next, a detailed configuration of the yarn joining device 33 will be described with reference to FIG. As shown in FIG. 3, the yarn joining device 33 includes an untwisting pipe 91, a yarn shifting lever 92, a clamp portion 93, a yarn pressing lever 94, a heating portion 95, and a yarn joining nozzle 97. Yes.

  One untwisting pipe 91 is arranged above and below the yarn joining nozzle 97. The untwisting pipe 91 is connected to a high-pressure air supply pipe (not shown). The untwisting pipe 91 disposed below the yarn joining nozzle 97 untwists the yarn end of the upper yarn with high-pressure compressed air. The untwisting pipe 91 disposed on the upper side of the yarn joining nozzle 97 untwists the yarn end of the lower yarn with high-pressure compressed air.

  The yarn shifting lever 92, the clamp portion 93, and the yarn holding lever 94 are provided in pairs on the upper side and the lower side. The yarn shifting lever 92 is configured to move the lower yarn guided by the lower yarn catching member 54 and the upper yarn guided by the upper yarn catching member 55 to the back side of the apparatus (yarn joining nozzle 97 side). . The clamp portion 93 is configured to be able to clamp a predetermined portion of the upper yarn and the lower yarn guided by the yarn joining nozzle 97. The thread holding lever 94 is configured to press and fix the upper thread and the lower thread at the time of yarn joining.

  The heating unit 95 has a substantially cylindrical shape in which the axial direction is the longitudinal direction, and is arranged so that the axial direction matches the front-rear direction of the apparatus. The heating unit 95 is attached to the frame or the like of the automatic winder 1 via a heating unit attachment plate 96. The heating unit 95 includes a heating element such as a nichrome wire.

  The yarn joining nozzle 97 is disposed on the front side of the main body of the yarn joining device 33. A yarn joining hole 98 is formed in the yarn joining nozzle 97. The yarn joining hole 98 is connected to a compressed air supply pipe (not shown). The compressed air heated by the heating unit 95 is supplied to the yarn joining hole 98 through the compressed air supply pipe. An unillustrated jet outlet for jetting compressed air is formed inside the yarn splicing hole 98. The yarn joining nozzle 97 performs yarn joining by generating a swirling airflow inside the yarn joining hole 98 by the heated compressed air.

  The yarn joining device 33 of the present embodiment is a heating type yarn joining device. However, a yarn winding machine that includes a non-heating type yarn joining device and can be replaced with a heating type yarn joining device is known. In this type of yarn winder, an attachment member for attaching the heating unit is provided, or the attachment member can be attached. The heat diffusion member 80 will be described later.

  Next, the configuration of the yarn length detection sensor 35 will be described with reference to FIGS. 3 and 4.

  As shown in FIG. 3, the yarn length detection sensor 35 is disposed immediately downstream of the yarn joining device 33. As shown in FIG. 4, the yarn length detection sensor 35 includes a case 60, an optical sensor 61, and a relay control board 64.

  The case 60 is a box-shaped member made of a thermoplastic resin. The case 60 includes a lid part 60a and a main body part 60b. The main body portion 60b constitutes a space for housing the parts constituting the yarn length detection sensor 35. Since the case 60 is made of a thermoplastic resin, it is lighter and cheaper than a metal case. The case 60 may be made of metal.

  The optical sensor 61 includes a light projecting unit 62 and a light receiving unit 63. The light projecting unit 62 includes a light source 62a and a light source holder 62b. The light source holder 62b holds a light source 62a and is provided with a lens for converging infrared rays and the like emitted from the light source 62a. With the above configuration, the light projecting unit 62 irradiates infrared rays toward the light receiving unit 63.

  The light receiving unit 63 is provided at a position facing the light projecting unit 62. The wound yarn 21 travels between the light projecting unit 62 and the light receiving unit 63. The light receiving unit 63 includes a light receiver 63a. The light receiver 63 a is provided with a plurality of light receiving elements arranged along the traveling direction of the yarn 21. The light receiver 63a receives light partially blocked by the thread 21 after being projected from the light projecting unit 62. A detection signal indicating the result of light reception by the light receiver 63a is output to the relay control board 64 via a board or cable not shown.

  The relay control board 64 is supported at a position away from the bottom surface of the main body 60b. The relay control board 64 performs appropriate processing on the detection signal input from the light receiver 63a to generate a processing signal. The relay control board 64 transmits this processing signal to the unit controller 30.

  The yarn length detection sensor 35 measures the length and traveling speed of the traveling yarn 21 using the spatial filter method. Since the spatial filter method is well-known, detailed description thereof is omitted, but the light receiver 63a observes the pattern of the yarn 21 and the periodic variation of the unevenness, and the number of repetitions within a predetermined time and the interval between the light receiving elements. Based on this, the length and traveling speed of the traveling yarn 21 are measured.

  Next, the configuration of the thread thickness detection sensor 34 and the heat diffusion member 80 will be described with reference to FIGS. 3 and 5.

  The thread thickness detection sensor 34 includes a case 70, an optical sensor 71, a relay control board 74, and an attachment portion 75.

  The case 70 is a thermoplastic box-shaped member. The case 70 accommodates parts constituting the thread thickness detection sensor 34. The case 70 is made of a thermoplastic resin, but may be made of metal.

  The optical sensor 71 includes a light projecting unit 72 and a light receiving unit 73. The light projecting unit 72 projects light such as infrared rays toward the light receiving unit 73. The light receiving unit 73 receives the light partially blocked by the yarn 21 after being projected from the light projecting unit 72. A detection signal obtained by receiving light by the light receiving unit 73 is processed by the relay control board 74 and transmitted to the unit control unit 30.

  The attachment portion 75 is a plate-like portion formed on the lower side (upstream side) of the case 70. The attachment portion 75 is provided such that the thickness direction and the apparatus front-rear direction are parallel to each other. The attachment portion 75 is formed with an attachment hole 75a to which the bolt 100 (fixing tool) can be attached.

  As shown in FIG. 3, the heat diffusion member 80 is disposed between the yarn joining device 33 and the yarn length detection sensor 35. The heat diffusing member 80 is a metal plate material, and is specifically made of a material mainly composed of aluminum. The heat diffusion member 80 has a function of protecting the yarn thickness detection sensor 34 and the yarn length detection sensor 35 from the heat of the heating unit 95 of the yarn joining device 33.

  As shown in FIG. 5, the heat diffusing member 80 includes a heat diffusing plate (heat shielding plate) 81 and a mounting plate 82. The heat diffusion plate 81 and the mounting plate 82 are connected substantially vertically.

  The heat diffusion plate 81 is disposed so as to be perpendicular to the traveling direction of the yarn 21. The heat diffusing plate 81 is disposed so as to cover at least a portion where the relay control board 64 and the light source 62a are disposed (in other words, a portion excluding the light receiving portion 63). In the present embodiment, the heating unit 95 is located on one side (the right side in FIG. 3) of the unit arrangement direction with respect to the yarn length detection sensor 35. Accordingly, the heat diffusing member 80 is disposed so as to extend to the one side from the yarn length detection sensor 35.

  Heat is transmitted from the heating unit 95 to the heat diffusion plate 81 by radiation. The heat transmitted by radiation is transmitted to the entire heat diffusion member 80 by heat conduction. Thereby, it is possible to prevent the heat of the heating unit 95 from being transmitted to the yarn length detection sensor 35 disposed on the upper side (downstream side).

  Thereby, the thermoplastic resin case 60 and the yarn length detection sensor 35 (particularly, the light source 62a and the relay control board 64), which are heat-sensitive members, can be protected from the heat of the heating unit 95.

  The matters described above for the yarn length detection sensor 35 also apply to the yarn thickness detection sensor 34.

  The mounting plate 82 has a mounting hole 82a in which the bolt 100 (fixing tool) can be mounted. A mounting hole (not shown) is also formed on the back side of the case 60 (on the opposite side of the optical sensor 61).

  The heat diffusion member 80 and the yarn length detection sensor 35 are attached to the yarn thickness detection sensor 34 by inserting and fastening the bolt 100 with the attachment holes 75a, the attachment holes 82a, and the attachment holes of the case 60 aligned. It is done.

  At this time, a mounting hole is formed at a position where the heat diffusion plate 81 and the lower surface of the case 60 do not contact each other. Thereby, it is possible to prevent the heat transmitted to the heat diffusion plate 81 from being transmitted to the yarn length detection sensor 35 due to heat conduction.

  Depending on the combination of the thread thickness detection sensor 34 and the thread length detection sensor 35, the thread thickness detection sensor 34 and the thread length detection sensor 35 may be adjusted to adjust the positional relationship between the thread path and the optical sensor 61. It is necessary to sandwich the spacer. In this regard, in this embodiment, the spacer can be attached so as to overlap the attachment plate 82.

  With this configuration, the heat diffusing member 80, the yarn length detection sensor 35, and the spacer (if necessary) can be fixed with the same bolt, so that the mounting operation can be simplified.

  As described above, the automatic winder 1 according to this embodiment includes the winding unit 26, the unit control unit 30, the yarn length detection sensor 35, the yarn thickness detection sensor 34, the yarn joining device 33, and the thermal diffusion. Member 80. The winding unit 26 winds the yarn 21 to form the package 23. The unit control unit 30 controls the winding unit 26. The yarn length detection sensor 35 and the yarn thickness detection sensor 34 are arranged on the yarn path of the yarn 21 wound by the winding unit 26, detect the state of the yarn 21, and transmit the detection result to the unit control unit 30. The yarn joining device 33 is a heating type yarn joining device that joins yarns by a heated air flow. The thermal diffusion member 80 is disposed between the yarn length detection sensor 35 and the yarn thickness detection sensor 34 and the position of the yarn joining device 33, and diffuses heat radiation energy generated from the yarn joining device 33 by heat conduction.

  As a result, it is possible to prevent the heat generated by the yarn joining device 33 from being transmitted to the yarn length detection sensor 35 and the yarn thickness detection sensor 34 that are sensitive to heat. Accordingly, it is possible to prevent the performance and life of the yarn length detection sensor 35 and the yarn thickness detection sensor 34 from being lowered.

  In the automatic winder 1 according to the present embodiment, the yarn length detection sensor 35 is disposed immediately downstream of the yarn joining device 33 on the yarn path.

  As a result, even when the distance between the yarn joining device 33 and the yarn length detection sensor 35 is reduced, the influence of heat is small, and therefore the size can be reduced by reducing the distance between components.

  Further, in the automatic winder 1 of the present embodiment, the outside of the yarn length detection sensor 35 and the yarn thickness detection sensor 34 is composed of cases 60 and 70 formed of thermoplastic resin.

  As a result, the handling of the yarn length detection sensor 35 and the yarn thickness detection sensor 34 can be improved, and thermal deformation of the thermoplastic resin case can be prevented.

  Further, in the automatic winder 1 of the present embodiment, the case 60 (case 70) is disposed on the yarn path of the yarn 21 wound by the winding unit 26, and has optical sensors 61 and 71 that monitor the state of the yarn 21. And relay control boards 64 and 74 that transmit processing signals obtained by processing the detection signals of the optical sensors 61 and 71 to the unit controller 30 are accommodated.

  As a result, the heat-sensitive optical sensors 61 and 71 and the relay control boards 64 and 74 can be protected from the heat of the yarn joining device 33.

  The preferred embodiment of the present invention has been described above, but the above configuration can be modified as follows, for example.

  The material and shape of the heat diffusing member 80 are arbitrary. For example, the heat diffusing member 80 does not have to be made of a single material, and may have a structure in which a metal plate and a heat insulating material are overlapped. The heat diffusion member 80 may be a flat plate member that does not have the mounting plate 82. Further, the heat diffusion member 80 may not be a plate material.

  The attachment position of the heat diffusion member 80 is also arbitrary. For example, the winder unit 10 may be attached to the frame or the yarn joining device 33.

  The present invention can be applied not only to an automatic winder but also to other yarn winding devices such as a winding machine and a spinning machine (for example, an air spinning machine and an open-end spinning machine). The present invention can be applied not only to a yarn winding device to which a heating type yarn joining device is always attached, but also to a yarn winding device to which a heating type yarn joining device can be attached (replaceable).

1 Automatic winder (yarn winding machine)
26 Winding unit 30 Unit control unit (control unit)
33 Yarn splicing device 34 Thread thickness detection sensor (yarn sensor)
35 Yarn length detection sensor (yarn sensor)
61 optical sensor 64 relay control board 71 optical sensor 74 relay control board 80 heat diffusion member 81 heat diffusion plate 82 mounting plate

Claims (10)

A winding unit for winding a yarn to form a package;
A control unit for controlling the winding unit;
A yarn sensor that is arranged on a yarn path of the yarn wound by the winding unit, detects a state of the yarn, and transmits a detection result to the control unit;
A yarn splicing device that connects yarns by air flow;
A heat diffusion member;
With
The yarn joining device is a heating type yarn joining device that joins yarns by a heated air flow, or can be replaced with a heating type yarn joining device,
The heat diffusing member is disposed between the yarn sensor and the position of the heating type yarn joining device when installed or replaced, and heat radiation energy generated from the heating type yarn joining device is transferred by heat conduction. A yarn winding device characterized by diffusing. The yarn winding device according to claim 1,
The yarn winding device, wherein the yarn sensor is disposed immediately downstream of the position of the heating type yarn joining device when installed or replaced on the yarn path. The yarn winding device according to claim 1 or 2,
The yarn winding device, wherein the heat diffusing member is disposed between the yarn sensor and a position of a heating portion of the heating type yarn joining device that has been installed or replaced. A yarn winding device according to any one of claims 1 to 3,
The yarn winding device, wherein the heat diffusing member is a plate member and is disposed with a gap from the yarn sensor. The yarn winding device according to claim 3 or 4,
A yarn winding device characterized in that the outside of the yarn sensor is constituted by a case formed of a thermoplastic resin. The yarn winding device according to claim 5,
In the case,
An optical sensor arranged on the yarn path of the yarn wound by the winding unit and monitoring the state of the yarn;
A relay control board for transmitting a processing signal obtained by processing a detection signal of the optical sensor to the control unit;
A yarn winding device, wherein The yarn winding device according to any one of claims 1 to 6,
The yarn winding device, wherein the heat diffusion member is made of metal. The yarn winding device according to claim 7,
A yarn winding device, wherein a material of the heat diffusion member is mainly composed of aluminum. A yarn winding device according to any one of claims 1 to 8,
The yarn winding device, wherein the yarn sensor transmits a processing signal for determining a running length of a yarn to the control unit. The yarn winding device according to claim 9,
The yarn winding device, wherein the yarn sensor transmits a processing signal for determining a running length of the yarn to the control unit based on a principle of a spatial filter method.

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