JP2013245069A - Yarn splicing device, yarn splicing system, and textile machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a yarn splicing device capable of selecting a swirling direction and a generation area of an airflow based on characteristics of a yarn to be spliced and changing them without component replacement even if the type of the yarn is changed, and to provide a yarn splicing system and a textile machine.SOLUTION: A yarn splicing device includes a twisting nozzle 73 for twisting yarn ends, and a twisting airflow supply mechanism 42 which generates a twisting airflow by supplying compressed air to the twisting nozzle 73 and is configured to enable the switching of a swirling direction of the twisting airflow and/or enable the switching of a generation area of the twisting airflow. The twisting airflow for twisting the yarn ends is generated in the swirling direction and/or in the generation area based on a twisting condition of the yarn to be spliced by exerting control to the twisting airflow supply mechanism 42.

Description

  The present invention relates to a yarn joining device that performs yarn joining, a yarn joining system that includes a yarn joining device, and a textile machine that includes the yarn joining system.

  Conventionally, a yarn winding device such as an automatic winder that winds a yarn unwound from a yarn feeding bobbin as a package is known. A plurality of yarn winding devices are arranged side by side to constitute a yarn winding facility. The yarn winding device includes a yarn joining device that joins the yarn end on the package side and the yarn end on the yarn feeding side at the time of yarn cutting by the yarn breakage or yarn defect detection device.

  In addition, a spinning device that generates spun yarn from a raw material such as a sliver and a spinning facility configured by arranging a plurality of spinning devices are also known. A yarn joining cart that travels along the spinning facility is provided with a yarn joining device, and is configured to perform yarn joining of a spinning device that requires yarn joining.

  As a yarn joining device, a yarn joining device that performs untwisting of both yarn ends to be spliced and twisting of both untwisted yarn ends using a fluid such as compressed air is known (for example, Patent Document 1). reference.). The yarn splicing device described in Patent Document 1 includes an untwisting nozzle for untwisting both yarn ends and a twisting nozzle for twisting both yarn ends after untwisting. By this yarn joining device, steps such as introduction of yarn ends, untwisting, and twisting are executed to perform yarn joining.

  Specifically, first, compressed air is supplied into each untwisting nozzle to generate an untwisting air flow including a swirling flow, and both yarn ends are sucked into the untwisting nozzle by the untwisting air flow. In the untwisting nozzle, the ends of both yarns are untwisted by the action of the untwisting air flow to loosen the fiber bundle. Next, the untwisted portions of both yarn ends move into the twisting nozzle. Compressed air is also supplied into the twist nozzle, and a twist air flow including a swirl flow is generated. The untwisted portions of both yarn ends are swung by the twisted air flow, entangled and twisted.

  By the way, the yarn has characteristics such as various materials, thickness, and twist direction. For example, there are so-called right-handed S twist (right-handed twist) and left-handed twisted Z-twisted (left-handed twist). Is reversed. For this reason, in the right twist and the left twist, the untwisting direction is reversed and the twisting direction is also reversed. For example, when the yarn that has been set up in the yarn winding device is a right-twisted yarn and the newly-set yarn is a left-twisted yarn, the untwisting and twisting directions are reversed, respectively. As a setup operation of the yarn winding device, it is necessary to change the swirl direction of the air flow generated in the untwisting nozzle or the twisting nozzle. In addition, depending on the characteristics of the yarn, it is necessary to replace the twist nozzle and the untwist nozzle with different regions for generating an air flow.

  In this way, if the type of yarn to be set changes, the characteristics of the yarn will change.Therefore, the twisting conditions suitable for yarn twisting, such as the swirling direction of the air flow and the air flow generation region, and the untwisting of the yarn The untwisting conditions suitable for are different. For this reason, when the type of yarn is changed, there is an inconvenience that parts of the yarn joining device must be replaced to change the swirl direction and the generation area of the air flow.

  Patent Document 2 discloses a technique in which openings facing each other in the air chamber are formed and air in different swirling directions is alternately ejected when the yarn ends are twisted. However, this technique is a technique in which air having different swirl directions is alternately injected in one twisting operation regardless of the original twisting direction of the yarn to be spliced. For this reason, it is not a technique for selecting and changing the swirl direction or generation region of the air flow according to the characteristics of the yarn to be spliced.

JP 59-211162 A Japanese Patent Publication No. 3-64433

  The present invention has been made to solve the above problems. The object of the present invention is to select and change the air flow swirl direction and the generation region according to the characteristics of the yarn to be spliced without replacing parts even when the yarn type is changed. It is to provide a yarn splicing device, a yarn splicing system and a textile machine.

  The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described.

That is, the yarn splicing device of the first invention is a yarn splicing device that performs yarn splicing between yarn ends, and includes a twisting nozzle and a twisting airflow supply mechanism.
The twisting nozzle twists yarn ends.
The twisted airflow supply mechanism supplies the compressed air to the twisted nozzle to generate a twisted airflow and can switch the swirling direction of the twisted airflow and / or generate the twisted airflow. The area can be switched.
And, by controlling the twisting airflow supply mechanism, a twisting airflow for twisting the yarn ends is generated in the swirling direction and / or the generation region according to the twisting conditions of the yarn to be spliced. .

The yarn joining device of the second invention is the yarn joining device of the first invention,
The twisting nozzle has a plurality of twisting jets corresponding to the swirl direction and / or the generation region so that the twisted air flow for twisting the yarn ends can be generated in different swirl directions and / or different generation regions. With holes.
The twisted air flow supply mechanism generates a twisted air flow by supplying compressed air to a plurality of twisted injection holes according to the swirling direction of the twisted air flow and / or for each generation region of the twisted air flow. And a twisting valve that opens and closes the twisting passage for each swirling direction of the twisting airflow and / or for each generation region of the twisting airflow.
Then, by performing open / close control on the twisting valve, the twisting air flow for twisting the yarn ends is changed in the swirling direction and / or the generation region according to the twisting condition of the yarn to be spliced. To generate.

A yarn joining system of a third invention includes the yarn joining device of the first invention, a setting unit, and a control unit.
The setting unit uses the swirling direction of the twisted air flow for twisting the yarn ends according to the twisting condition of the yarn to be spliced and / or the generation region of the twisted air flow as the set twisting condition. Set.
The control unit controls the twisted airflow supply mechanism based on the set twisting condition set by the setting unit.

A yarn joining system according to a fourth aspect includes the yarn joining device according to the second aspect, a setting unit, and a control unit.
The setting unit uses the swirling direction of the twisted air flow for twisting the yarn ends according to the twisting condition of the yarn to be spliced and / or the generation region of the twisted air flow as the set twisting condition. Set.
The control unit performs opening / closing control on the twisting valve based on the set twisting condition set by the setting unit.

A yarn joining system of a fifth invention is the yarn joining system of the fourth invention,
The twist nozzle includes an air chamber in which the plurality of twist injection holes are formed on the peripheral surface.
The plurality of twisting injection holes include a main twisting injection hole and a sub-twisting injection hole that generate a twisted air flow for twisting yarn ends in different generation regions.

A yarn joining system of a sixth invention is the yarn joining system of the fifth invention,
The air chamber of the twisting nozzle is arranged in a state where the yarn ends of the two yarns to be spliced are overlapped from different directions, and at least a first air chamber for turning the yarn end of at least one yarn, And a second air chamber for rotating the yarn end of the other yarn.
In the first air chamber and the second air chamber, a main twist injection hole and a sub twist injection hole are formed side by side in the axial direction of the air chamber.

A yarn joining system of a seventh invention is the yarn joining system of the fourth invention,
The twist nozzle includes an air chamber in which the plurality of twist injection holes are formed on the peripheral surface.
The plurality of twisting injection holes are a right twisting injection hole that generates a twisted air flow that twists the yarn ends of the right twisted yarn and a twist that twists the yarn ends of the left twisted yarn. And a left twist injection hole for generating a hanging air flow.

The yarn joining system of the eighth invention is the yarn joining system of the seventh invention,
The air chamber of the twisting nozzle is arranged in a state where the yarn ends of the two yarns to be spliced are overlapped from different directions, and at least a first air chamber for turning the yarn end of at least one yarn, And a second air chamber for rotating the yarn end of the other yarn.
In the first air chamber and the second air chamber, a right twist injection hole and a left twist injection hole are formed side by side on the same circumference.

A yarn joining system of a ninth invention is the yarn joining system of any of the third to eighth inventions,
The yarn joining device includes an untwisting nozzle and an untwisting airflow supply mechanism.
In order to prepare for twisting yarn ends by the twisting nozzle, the untwisting nozzle can generate untwisting air flows for untwisting each yarn end at different positions.
The untwisting air flow supply mechanism is configured to supply compressed air to the untwisting nozzle and to switch the generation position of the untwisting air flow.
And by the control with respect to the untwisting airflow supply mechanism, the untwisting airflow for untwisting each yarn end is generated at a position corresponding to the untwisting condition of the yarn to be spliced.

A textile machine according to a tenth aspect includes the yarn splicing system according to any one of the third to ninth aspects, a plurality of yarn winding devices, and a machine base control unit that controls the plurality of yarn winding devices.
The yarn joining device and the control unit are installed in the yarn winding device.
The machine base control unit is provided with a setting unit.
The setting unit includes an operation input unit that can be operated by an operator.

  As effects of the present invention, the following effects can be obtained.

  According to the yarn splicing device of the first aspect of the invention, the twisted air flow for twisting the yarn ends is controlled according to the twisting conditions of the yarn to be spliced by controlling the twisting air flow supply mechanism. It can be generated in the direction and / or generation area. For this reason, even if the type of the yarn is changed, it is possible to select and change the swirling direction and the generation region of the twisted air flow generated in the twisting nozzle without replacing parts of the yarn joining device.

  According to the yarn splicing device of the second aspect of the present invention, the twisting air flow for twisting the yarn ends is provided by controlling the opening and closing of the twisting valve by providing a plurality of twisting injection holes. It is generated in the swirling direction and / or in the generation region according to the yarn twisting condition to be performed. For this reason, it can be set as a simple structure instead of the complicated structure which moves the injection hole itself, or opens and closes it.

  According to the yarn splicing system of the third aspect of the present invention, the yarn splicing system includes a setting unit that sets the setting twisting condition and a control unit that controls the twisting airflow supply mechanism based on the setting. For this reason, the twisting airflow for twisting yarn ends can be easily changed according to the setting. As a result, even if the type of yarn is changed, it is possible to select and change the swirling direction of the twisted air flow and the generation region of the twisted air flow without performing complicated operations or replacing parts of the yarn splicing device. Can do.

  According to the yarn splicing system of the fourth aspect of the present invention, the yarn splicing system includes a setting unit that sets the set twisting condition and a control unit that performs opening / closing control on the twisting valve based on the setting. For this reason, the twisting airflow for twisting yarn ends can be easily changed according to the setting. As a result, even if the type of yarn is changed, the swirling direction of the twisted air flow and the region where the twisted air flow is generated can be changed without performing complicated operations or replacing parts of the yarn splicing device.

  According to the yarn splicing system of the fifth invention, when the type of the yarn is changed, the main twisting injection hole and the subtwisting that generate the twisting air flow for twisting the yarn ends in different generation regions. A hanging injection hole is provided. For this reason, even if the type of yarn is changed, it can be easily changed by selecting the region where the twisted airflow is generated according to the characteristics of the yarn to be spliced, and good splicing performance can be achieved. Can be obtained.

  According to the yarn splicing system of the sixth invention, when the type of the yarn is changed, the main twisting injection hole and the subtwisting that generate the twisting air flow for twisting the yarn ends in different generation regions. A hanging injection hole is provided in each of the first air chamber and the second air chamber. For this reason, even if the type of yarn is changed, it can be easily changed by selecting the region where the twisted airflow is generated according to the characteristics of the yarn to be spliced, and good splicing performance can be achieved. Can be obtained.

  According to the yarn splicing system of the seventh invention, when the type of the yarn is changed, a twisted injection hole for the right that generates twisted airflows for twisting the yarn ends in different swirling directions; It has a left twisting injection hole. For this reason, when the twisting direction of the yarn is changed, the direction of the twisted air flow for twisting the yarn ends can be easily changed, and there is no need to replace parts in either the right twisted yarn or the left twisted yarn. Can respond.

  According to the yarn splicing system of the eighth invention, when the type of the yarn is changed, a twisted air injection hole for the right that generates a twisted air flow for twisting the yarn ends in different swirling directions; A left twisting injection hole is provided in each of the first air chamber and the second air chamber. For this reason, when the twisting direction of the yarn is changed, the direction of the twisted air flow for twisting the yarn ends can be easily changed, and there is no need to replace parts in either the right twisted yarn or the left twisted yarn. Can respond.

  According to the yarn splicing system of the ninth invention, the untwisting air flow for untwisting each yarn end is controlled at a position corresponding to the untwisting condition of the yarn to be spliced by controlling the untwisting air flow supply mechanism. Can be generated. For this reason, when the twist direction of the yarn is changed, not only the swirling direction and the generation region of the twisted air flow that twists the yarn ends but also the untwisted air flow that untwists each yarn end. The generation position can be easily changed, and both right-handed yarn and left-handed yarn can be handled without replacement of parts.

  According to the textile machine of the tenth invention, the machine base control unit is provided with the operation input unit operable by the operator. For this reason, about the several yarn winding device, the turning direction and generation | occurrence | production area | region of a twisted air flow, or the generation | occurrence | production position of an untwisting air flow can be changed collectively, and an operator's work man-hour can be reduced.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a simplified front view and block diagram illustrating a yarn winding unit 11 to which a yarn joining device 21 according to a first embodiment is applied. The perspective view of the yarn splicing device 21. FIG. FIG. 2 is a simplified diagram of the structure of a yarn joining device 21. 1 is a simplified diagram illustrating a yarn splicing system 100 according to Embodiment 1. FIG. (A) Plan view of twisting nozzle 73 (B) Enlarged plan view of twisting nozzle 73 (C) Enlarged front view of twisting nozzle 73. (A) Plan view of twisting nozzle 73 (B) Enlarged plan view of twisting nozzle 73 (C) Enlarged front view of twisting nozzle 73. FIG. 6 is a simplified diagram illustrating a yarn joining system 100 according to a second embodiment. (A) Plan view of twisting nozzle 73 (B) Enlarged plan view of twisting nozzle 73 (C) Enlarged front view of twisting nozzle 73. (A) Plan view of twisting nozzle 73 (B) Enlarged plan view of twisting nozzle 73 (C) Enlarged front view of twisting nozzle 73. (A) Plan view of twisting nozzle 73 (B) Enlarged plan view of twisting nozzle 73 (C) Enlarged front view of twisting nozzle 73. (A) Modification of twisting nozzle 73 in Example 1 (B) Modification of twisting nozzle 73 in Example 2.

  Next, embodiments of the invention will be described with reference to the drawings.

  A yarn joining system 100 to which the yarn joining device 21 according to the first embodiment of the present invention is applied, and an automatic winder as a textile machine equipped with the yarn joining system 100 will be described with reference to FIGS.

  First, an outline of the yarn winding unit 11 constituting the automatic winder will be described. As shown in FIG. 1, the yarn winding unit 11 forms a yarn layer on the winding tube 92 while traversing (twisting) the yarn Y unwound from the yarn supplying bobbin 91 by the traverse device 12, and the package P Is formed. The traveling direction of the yarn Y is a direction from the yarn supplying bobbin 91 toward the package P. Although there is one yarn winding unit 11 shown in FIG. 1, an automatic winder is configured by arranging a plurality of such yarn winding units 11 in a row.

  In this specification, the winding tube 92 and the package P may be collectively referred to as a winding bobbin B. That is, the winding bobbin B on which the yarn layer is not formed is the winding tube 92, and the winding bobbin B on which the yarn layer is formed is the package P.

  As shown in FIG. 1, the yarn winding unit 11 includes a winding unit 2, a contact roller 14, a traverse device 12, and a yarn feeding unit 3.

  The winding unit 2 is a part that winds the yarn Y around the package P. The winding unit 2 includes a cradle 13, a bearing (not shown), and a winding bobbin drive motor 18. The cradle 13 is swingable about a swing shaft 15. The bearing is provided in the cradle 13. The take-up bobbin B is detachably attached to the bearing, and the cradle 13 grips both ends of the take-up bobbin B so as to be rotatable. When the diameter of the winding bobbin B is increased by winding the yarn Y around the winding bobbin B, the cradle 13 swings. Accordingly, an appropriate contact between the circumferential surface of the winding bobbin B and the contact roller 14 is maintained.

  The take-up bobbin drive motor 18 is a drive unit that directly drives the take-up bobbin B to rotate. The drive shaft of the take-up bobbin drive motor 18 is connected to the take-up bobbin B so as not to rotate relative to the take-up bobbin B when the take-up bobbin B is held by the bearing of the cradle 13 (so-called direct drive system). The winding unit 2 winds the yarn Y by positively rotating the winding bobbin B by the winding bobbin driving motor 18.

  Further, the cradle 13 is provided with a winding bobbin rotational speed sensor 32 and a winding bobbin diameter sensor 33. The winding bobbin rotation speed sensor 32 detects the rotation speed of the winding bobbin B. The winding bobbin diameter sensor 33 detects the diameter of the winding bobbin B. The winding bobbin diameter sensor 33 is composed of a rotary encoder or the like, and detects the diameter of the winding bobbin B by detecting the swing angle of the cradle 13.

  The contact roller 14 is a roller that rotates in contact with the peripheral surface of the winding bobbin B. The contact roller 14 presses the yarn Y against the surface of the winding bobbin B with an appropriate pressure, and adjusts the shape of the winding bobbin B (package P).

  The traverse device 12 is driven independently of the winding bobbin B, and traverses the yarn Y wound around the winding bobbin B. The traverse device 12 includes a traverse guide 17 and a traverse guide drive motor 19.

  The traverse guide 17 is a member that engages with the yarn Y and traverses the yarn Y. The traverse guide drive motor 19 moves the traverse guide 17 in the direction of the winding width of the winding bobbin B as shown by the arrow in FIG. 1, that is, the first end (the left end in the drawing) of the winding bobbin B and the second. Is driven so as to reciprocate both ends of the end portion (right end portion in the figure). In this embodiment, the take-up bobbin B is directly rotated and the traverse device 12 is driven independently of the take-up bobbin B. However, the traverse device is a traverse drum. It may be. The traverse drum rotates in contact with the outer peripheral surface of the winding bobbin B to rotate the winding bobbin B. Further, the traverse drum is formed with traverse grooves, and the yarn Y is wound around the take-up bobbin B while being traversed by the traverse grooves.

  The yarn supplying portion 3 is a portion that supplies the yarn Y wound on the winding bobbin B. The yarn feeding section 3 is provided with a yarn feeding bobbin holding peg (not shown), and a yarn feeding bobbin 91 is attached to the yarn feeding bobbin holding peg. In the yarn traveling path between the yarn feeding unit 3 and the contact roller 14, a tension applying device 20, a yarn joining device 21, and a yarn clearer 22 are provided in this order from the yarn feeding unit 3 side.

  The tension applying device 20 applies an appropriate tension to the yarn Y. The yarn clearer 22 detects the thickness of the yarn Y passing through the detection portion by a sensor and analyzes the signal from the sensor by the analyzer 23 to detect a yarn defect such as a slab. The yarn clearer 22 may be configured to detect the presence or absence of foreign matter contained in the yarn Y in addition to the abnormal thickness of the yarn Y. The yarn clearer 22 is used to cut the yarn Y because it has detected a yarn defect (clearer cut), or to cut the yarn Y (additional cut) to interrupt winding due to a traverse failure, although this is not a yarn defect. A cutter is attached.

  The yarn joining device 21 includes a yarn end YA of the lower yarn on the yarn supplying bobbin 91 side and a winding bobbin B (package P) side when the yarn clearer 22 cuts the yarn or the yarn Y from the yarn supplying bobbin 91 is broken. Yarn splicing with the yarn end YB of the upper yarn is performed. The yarn joining device 21 will be described in detail later.

  A suction pipe 24 that captures the yarn end YA on the yarn feeding bobbin 91 side by suction and guides it to the yarn joining device 21 is provided below the yarn joining device 21 (upstream in the traveling direction of the yarn Y). On the upper side of the yarn joining device 21 (downstream in the traveling direction of the yarn Y), a suction mouth 27 that captures the yarn end YB on the winding bobbin B side by suction and guides it to the yarn joining device 21 is provided. The suction pipe 24 is configured in a pipe shape, and is provided so as to be rotatable up and down around a shaft 25, and an opening 26 is provided on the tip side thereof. The suction mouth 27 is also configured in a pipe shape, and is provided so as to be rotatable up and down around a shaft 28, and an opening 29 is provided on the tip side thereof. A negative pressure source (not shown) is connected to the suction pipe 24 and the suction mouth 27, and a suction action is generated in the opening 26 and the opening 29 at the tip.

  Next, a configuration for controlling the operation of the yarn winding unit 11 will be described. As shown in FIG. 1, the yarn winding unit 11 is provided with a unit controller 36 that individually controls the yarn winding unit 11. A winding bobbin drive control unit 31 and a traverse control unit 34 are connected to the unit control unit 36. Further, the yarn joining device 21 is also connected to the unit control unit 36 and controls the operation of the yarn joining device 21. The unit control unit 36 is connected to the machine base control unit 37. The machine control unit 37 controls the plurality of yarn winding units 11 constituting the automatic winder in an integrated manner.

  The machine control unit 37 includes a setting unit 38. The setting unit 38 includes an operation input unit such as a touch panel that can be operated by an operator. In the setting unit 38, the operation setting of each unit for each yarn winding unit 11 can be performed collectively.

  The unit control unit 36, the machine base control unit 37, the take-up bobbin drive control unit 31, and the traverse control unit 34 include a CPU as a calculation unit, a ROM, a RAM, and the like as a storage unit.

  Next, the configuration of the yarn joining device 21 will be described with reference to FIGS. 2 and 3. A yarn end YA on the yarn feeding bobbin 91 side and a yarn end YB on the winding bobbin B side are guided to the yarn joining device 21 by the suction mouth 27 and the suction pipe 24 of the yarn winding unit 11. The untwisting process and the twisting process of the yarn ends YA and YB in the yarn joining device 21 are performed using compressed air. Here, the overall configuration of the yarn joining device 21 will be described, and then the yarn joining system 100 including the yarn joining device 21 will be described.

  The yarn splicing device 21 includes a first untwisting nozzle 71, a second untwisting nozzle 72, and a twisting nozzle 73. Further, the yarn joining device 21 introduces a yarn shifting lever 76, a yarn end cutter 77, a clamp portion 78, and a yarn presser lever 79 for introducing the yarn ends YA and YB and adjusting the positions of the yarn ends YA and YB. I have.

  The 1st untwisting nozzle 71 is a part which performs the untwisting process for preparing the twisting of the yarn end YA with respect to the yarn end YA. The first untwisting nozzle 71 sucks the yarn end YA on the yarn feeding bobbin 91 side and performs untwisting. The first untwisting nozzle 71 is connected to the untwisting airflow supply mechanism 41. By injecting compressed air for untwisting into the first untwisting nozzle 71, an untwisted air flow including a spiral air flow is generated in the first untwisting nozzle 71. By this untwisting air flow, the yarn end YA on the yarn supplying bobbin 91 side is sucked into the first untwisting nozzle 71, and the fiber at the yarn end YA is unwound.

  The second untwisting nozzle 72 is a part that performs untwisting processing on the yarn end YB to prepare for twisting the yarn end YB. The second untwisting nozzle 72 sucks the yarn end YB on the winding bobbin B side and performs untwisting. The second untwisting nozzle 72 is also connected to the untwisting airflow supply mechanism 41. By injecting compressed air for untwisting into the second untwisting nozzle 72, an untwisting air flow including a spiral air flow is generated in the second untwisting nozzle 72. By this untwisting air flow, the yarn end YB on the winding bobbin B side is sucked into the second untwisting nozzle 72, and the fibers at the yarn end YB are unwound.

  The twist nozzle 73 is a portion that twists the yarn ends YA and YB. Specifically, the yarn ends YA and YB untwisted by the first untwisting nozzle 71 and the second untwisting nozzle 72 are entangled and connected. The twisting nozzle 73 is connected to the twisting airflow supply mechanism 42. A twisted air flow is generated by the twisted compressed air injected into the twisting nozzle 73, and the untwisted yarn ends YA and YB are twisted and connected.

  The yarn gathering lever 76 includes a first yarn gathering lever 76a and a second yarn gathering lever 76b. The first yarn gathering lever 76a and the second yarn gathering lever 76b adjust the positions of the yarn ends YA and YB.

  The yarn end cutter 77 includes a first yarn end cutter 77a and a second yarn end cutter 77b. The first yarn end cutter 77a and the second yarn end cutter 77b cut the yarn ends YA and YB to an appropriate length before untwisting the yarn ends YA and YB, respectively.

  The clamp part 78 includes a first clamp plate 78a and a second clamp plate 78b. The first clamp plate 78a and the second clamp plate 78b clamp and fix the yarn ends YA and YB.

  The thread holding lever 79 includes a first fork 79a and a second fork 79b. The first fork 79a and the second fork 79b fix the positions of the untwisted portions of the yarn ends YA and YB so that the untwisted portions of the yarn ends YA and YB are located in the twisting nozzle 73. .

  The position of the untwisted portions of the yarn ends YA and YB is fixed in the twisting nozzle 73 by the first fork 79a and the second fork 79b, and then compressed air for twisting is injected by the twisting nozzle 73. The untwisted portions of the yarn ends YA and YB are twisted and connected.

  As shown in FIG. 4, the yarn joining system 100 includes an air supply device 61 common to the yarn joining device 21 of each yarn winding unit 11. The air supply device 61 is a device that supplies compressed air to the yarn joining device 21. The air supply device 61 is connected to the untwisted air pipe 62 via the first pressure reducing valve 64. The first pressure reducing valve 64 is a valve that adjusts the compressed air from the air supply device 61 to a pressure suitable for untwisting the yarn ends YA and YB. The untwisting air pipe 62 is a pipe that supplies compressed air for untwisting to the yarn joining device 21 of each yarn winding unit 11. The air supply device 61 is connected to the twisted air pipe 63 via the second pressure reducing valve 65. The second pressure reducing valve 65 is a valve that adjusts the compressed air from the air supply device 61 to a pressure suitable for twisting the yarn ends YA and YB. The twisted air pipe 63 is a pipe that supplies compressed air for twisting to the yarn joining device 21 of each yarn winding unit 11.

  Here, the first untwisting nozzle 71, the second untwisting nozzle 72, and the twisting nozzle 73 will be described in detail.

  As shown in FIGS. 3 and 4, the first untwisting nozzle 71 is an untwisting air stream that untwists the yarn end YA in order to prepare for twisting the yarn ends YA and YB by the twisting nozzle 73. Can be generated at different positions. The first untwisting nozzle 71 is formed with a right first untwisting injection hole 711 and a left first untwisting injection hole 712. The right first untwisting injection hole 711 is an injection hole for compressed air that generates an untwisting air flow for untwisting the yarn end YA of the yarn Y when the yarn Y is right-twisted. The left first untwisting injection hole 712 is an injection hole for compressed air that generates an untwisting air flow for untwisting the yarn end YA of the yarn Y when the yarn Y is left-twisted. The turning direction of the untwisted air flow for untwisting the yarn end YA is opposite in the case where the yarn Y is right-twisted and left-twisted. Therefore, the right first untwisting injection hole 711 and the left first untwisting injection hole 712 are arranged to be shifted by about 90 degrees so as to generate the untwisting air flow at different positions with respect to the yarn end YA. . The specific arrangement is the same as the ejection holes 33 and 34 described in FIGS. 5 and 6 of JP-B-62-3741.

  The second untwisting nozzle 72 is configured to generate untwisting air flows for untwisting the yarn end YB at different positions in order to prepare for twisting the yarn ends YA and YB by the twisting nozzle 73. Has been. The second untwisting nozzle 72 is formed with a right second untwisting injection hole 721 and a left second untwisting injection hole 722. The right second untwisting injection hole 721 is an injection hole for compressed air that generates an untwisting air flow for untwisting the yarn end YB of the yarn Y when the yarn Y is right-twisted. The left second untwisting injection hole 722 is an injection hole for compressed air that generates an untwisting air flow for untwisting the yarn end YB of the yarn Y when the yarn Y is left-twisted. The turning direction of the untwisted air flow for untwisting the yarn end YB is opposite in the case where the yarn Y is right-twisted and left-twisted. For this reason, the right second untwisting injection hole 721 and the left second untwisting injection hole 722 are arranged to be shifted by about 90 degrees so as to generate the untwisting air flow at different positions with respect to the yarn end YB. . The specific arrangement is the same as the ejection holes 33 and 34 described in FIGS. 5 and 6 of JP-B-62-3741.

  As shown in FIGS. 4, 5, and 6, the twisting nozzle 73 of this embodiment is configured to generate twisting airflows for twisting the yarn ends YA and YB in different swirling directions. Yes. As shown in FIGS. 5 and 6, the twist nozzle 73 includes a guide portion 51, a slit 52, an air chamber 53, and a plurality of twist injection holes 54. The guide part 51 is a notch part opened in V shape by planar view. The guide portion 51 is a portion that guides the yarn ends YA and YB to the slit 52. The slit 52 is a portion for introducing the yarn ends YA and YB guided by the guide portion 51 into the air chamber 53.

  The air chamber 53 is a portion where the yarn ends YA and YB to be spliced are arranged in a superimposed state from different directions. In the air chamber 53, a twisted air flow for twisting the yarn ends YA and YB is generated in a state where the yarn ends YA and YB are arranged. The air chamber 53 includes a first air chamber 531 and a second air chamber 532. In FIG. 5C, the first air chamber 531 on the upper side in the drawing is formed of a cylindrical peripheral surface, and turns the yarn end YA. In FIG. 5C, the second air chamber 532 on the lower side in the figure is formed of a cylindrical peripheral surface, and turns the yarn end YB. The air chamber 53 of the present embodiment is disposed with the center lines of the first air chamber 531 and the second air chamber 532 being offset.

  The plurality of twisting injection holes 54 are injection holes for compressed air formed in the respective peripheral surfaces of the first air chamber 531 and the second air chamber 532. The plurality of twist injection holes 54 inject compressed air in the tangential direction of the air chamber 53 to generate a twist air flow in the first air chamber 531 and the second air chamber 532. The twisting injection hole 54 has a right twisting injection hole 541 and a left twisting injection hole 542. The right twist injection hole 541 is an injection hole that generates a twisted air flow for twisting the yarn ends YA and YB of the yarn Y when the yarn Y is right-twisted. The left twisting injection hole 542 is an injection hole that generates a twisted air flow that twists the yarn ends YA and YB of the yarn Y when the yarn Y is left-twisted. The swirling direction of the twisted air flow for twisting the yarn ends YA and YB of the yarn Y is opposite in the case where the yarn Y is right-twisted and left-twisted. For this reason, the right twist injection hole 541 and the left twist injection hole 542 are arranged at positions facing each other with the slit 52 interposed therebetween, and are formed so as to generate a twist air flow in directions opposite to each other. Yes. The directions of the right twist injection hole 541 and the left twist injection hole 542 are tangential to the peripheral walls of the first air chamber 531 and the second air chamber 532, respectively, and the twist air flow is clockwise and counterclockwise. It is formed to be around. The right twist injection hole 541 and the left twist injection hole 542 are formed in the first air chamber 531 and the second air chamber 532, respectively. Further, the right twist injection hole 541 and the left twist injection hole 542 of the first air chamber 531 and the second air chamber 532 are formed side by side on the same circumference.

  The twist nozzle 73 is attached to a block 55 provided in the yarn splicing device 21. In the block 55, a right air channel 551 and a left air channel 552 are formed. The right air flow path 551 is a flow path for supplying compressed air to the right twist injection hole 541. The left air channel 552 is a channel for supplying compressed air to the left twisted injection hole 542. A space communicating from the right air flow path 551 to the right twist injection hole 541 is formed between the twist nozzle 73 and the block 55 (not shown). This space serves as an air flow path from the right air flow path 551 to the right twist injection hole 541 and supplies compressed air to the right twist injection hole 541. Further, a space communicating from the left air flow path 552 to the left twist injection hole 542 is also formed between the twist nozzle 73 and the block 55 (not shown). This space serves as an air flow path from the left air flow path 552 to the left twist injection hole 542 and supplies compressed air to the left twist injection hole 542. The right air passage 551 is connected to a right twist passage 421 to be described later, and the left air passage 552 is connected to a left twist passage 422 to be described later.

  Next, the yarn joining system 100 including the yarn joining device 21 will be described. The yarn splicing system 100 of the present embodiment can select and change the generation position of the untwisted air flow and the swirling direction of the twisted air flow without performing complicated operations or replacing parts of the yarn splicing device. System. The yarn joining system 100 includes a yarn joining device 21, a setting unit 38 of the machine base control unit 37, and a unit control unit 36 of the yarn winding unit 11.

  As shown in FIGS. 4, 5, and 6, the yarn joining device 21 is a mechanism for supplying compressed air to the first untwisting nozzle 71, the second untwisting nozzle 72, and the twisting nozzle 73. A flow supply mechanism 41 and a twisted air flow supply mechanism 42 are provided.

  The untwisting airflow supply mechanism 41 supplies compressed air to the first untwisting nozzle 71 and the second untwisting nozzle 72 so that the generation position of the untwisting airflow can be switched. The untwisting airflow supply mechanism 41 includes a right untwisting channel 411, a left untwisting channel 412, a right untwisting valve 413, and a left untwisting valve 414.

  The right untwisting channel 411 is a channel for supplying the compressed air from the untwisting air pipe 62 to the right first untwisting injection hole 711 and the right second untwisting injection hole 721. In the middle of the right untwisting channel 411, a right untwisting valve 413 is connected. The right untwisting valve 413 is an electromagnetic valve that opens and closes the right untwisting channel 411 for each position where the untwisting air flow is generated based on a control signal.

  The left untwisting channel 412 is a channel for supplying compressed air from the untwisting air pipe 62 to the left first untwisting injection hole 712 and the left second untwisting injection hole 722. A left untwisting valve 414 is connected in the middle of the left untwisting channel 412. The left untwisting valve 414 is an electromagnetic valve that opens and closes the left untwisting flow path 412 according to the generation position of the untwisting air flow based on a control signal.

  The twisted airflow supply mechanism 42 supplies compressed air to the twisting nozzle 73 in each swirl direction of the twisted airflow. The twisting airflow supply mechanism 42 includes a right twisting channel 421, a left twisting channel 422, a right twisting valve 423, and a left twisting valve 424.

  The right twist channel 421 is a channel that supplies compressed air for each swirling direction of the twisted air flow, and a channel that supplies compressed air from the twisted air pipe 63 to the right twist injection hole 541. It is. A right twist valve 423 is connected in the middle of the right twist passage 421. The right twisting valve 423 is an electromagnetic valve that opens and closes the right twisting flow path 421 for each swirling direction of the twisting airflow based on a control signal.

  The left twisting channel 422 is a channel that supplies compressed air for each swirling direction of the twisting air flow, and is a channel that supplies compressed air from the twisting air pipe 63 to the left twisting injection hole 542. . A left twist valve 424 is connected in the middle of the left twist passage 422. The left twisting valve 424 is an electromagnetic valve that opens and closes the left twisting flow path 422 for each swirling direction of the twisting airflow based on a control signal.

  The setting unit 38 of the machine base control unit 37 can collectively set operation settings of the yarn joining device 21 of each yarn winding unit 11 (see FIG. 1). The operator operates the touch panel of the setting unit 38 for setting. Regarding the operation setting of the yarn joining device 21, the generation position of the untwisting air flow for untwisting the yarn ends YA and YB according to the untwisting condition and the twisting condition of the yarn Y to be spliced, and the yarn end YA The swirl direction of the twisted air flow for twisting YB is set as the set untwisting condition and the set twisting condition. In this embodiment, if the yarn Y to be spliced is a right-twisted yarn or a left-twisted yarn is selected on the touch panel of the setting unit 38, the untwisting that untwists the yarn ends YA and YB is performed. The generation position of the air flow and the turning direction of the twisted air flow for twisting the yarn ends YA and YB are determined, and the set untwisting condition and the set twisting condition are set.

  The machine base control unit 37 transmits the setting content set by the setting unit 38 to the unit control unit 36 of each yarn winding unit 11. The unit control unit 36 controls the untwisting airflow supply mechanism 41 and the twisting airflow supply mechanism 42 so as to drive the yarn joining device 21 based on the set untwisting condition and the set twisting condition.

  Specifically, the unit controller 36 performs opening / closing control on the right untwisting valve 413 and the left untwisting valve 414 of the untwisting airflow supply mechanism 41, thereby untwisting the yarn ends YA and YB. The untwisting air flow to be performed is generated at a position corresponding to the untwisting condition of the yarn to be spliced. The unit control unit 36 performs opening / closing control on the right twist valve 423 and the left twist valve 424 of the twist air flow supply mechanism 42, thereby twisting the yarn ends YA and YB. An air flow is generated in the swirl direction according to the twisting conditions of the yarn to be spliced.

  A specific operation of the yarn joining system 100 will be described.

  First, with reference to FIGS. 4 and 5, a case will be described in which the operator operates the touch panel of the setting unit 38 and selects that the yarn Y to be spliced is right-handed. In this case, it is determined that the unwinding position of the untwisted air stream for untwisting the yarn ends YA and YB is a position for untwisting the right-twisted yarn Y, and twisting the yarn ends YA and YB. It is determined that the swirling direction of the twisted airflow is the swirling direction of the twisted airflow that twists the right-twisted yarn Y, and this is set as the set untwisting condition and the set twisting condition. The The unit control unit 36 controls the untwisting airflow supply mechanism 41 and the twisting airflow supply mechanism 42 so as to drive the yarn joining device 21 based on the set untwisting condition and the set twisting condition.

  Specifically, the unit control unit 36 transmits a control signal for opening and closing the valve to the right untwisting valve 413 of the untwisting airflow supply mechanism 41 during the untwisting operation. Based on this control signal, the right untwisting valve 413 opens and closes the right untwisting channel 411 during the untwisting operation. On the other hand, a control signal that keeps the valve closed is transmitted to the left untwisting valve 414 of the untwisting airflow supply mechanism 41. Based on this control signal, the left untwisting valve 414 keeps closing the left untwisting channel 412 during the untwisting operation. With such control, in the first untwisting nozzle 71 and the second untwisting nozzle 72, during the untwisting operation, the untwisted air flow is generated at the position where the yarn ends YA and YB of the right twisted yarn Y are untwisted. Can be generated.

  Further, the unit controller 36 transmits a control signal for opening and closing the valve to the right twisting valve 423 of the twisting airflow supply mechanism 42 during the twisting operation. Based on this control signal, the right twist valve 423 opens and closes the right twist channel 421 during the twisting operation. On the other hand, a control signal that keeps the valve closed is transmitted to the left twisting valve 424 of the twisting airflow supply mechanism 42. Based on this control signal, the left twisting valve 424 keeps closing the left twisting flow path 422 during the twisting operation. With such control, the twisting nozzle 73 can generate a swirling airflow in a turning direction that twists the yarn ends YA and YB of the right twisted yarn Y during the twisting operation.

  Next, a case where the operator operates the touch panel of the setting unit 38 and selects that the yarn Y to be spliced is left-handed will be described with reference to FIGS. 4 and 6. In this case, it is determined that the position of the untwisted air stream for untwisting the yarn ends YA and YB is a position for untwisting the left-twisted yarn Y, and twisting the yarn ends YA and YB. It is determined that the swirling direction of the twisted airflow that performs twisting is the swirling direction of the twisted airflow that twists the left twisted yarn Y, and this is set as the set untwisting condition and the set twisting condition. The The unit control unit 36 controls the untwisting airflow supply mechanism 41 and the twisting airflow supply mechanism 42 so as to drive the yarn joining device 21 based on the set untwisting condition and the set twisting condition.

  Specifically, the unit controller 36 transmits a control signal that keeps the valve closed to the right untwisting valve 413 of the untwisting airflow supply mechanism 41. Based on this control signal, the right untwisting valve 413 keeps closing the right untwisting channel 411 during the untwisting operation. On the other hand, a control signal for opening and closing the valve is transmitted to the left untwisting valve 414 of the untwisting airflow supply mechanism 41 during the untwisting operation. Based on this control signal, the left untwisting valve 414 opens and closes the left untwisting channel 412 during the untwisting operation. With such control, in the first untwisting nozzle 71 and the second untwisting nozzle 72, during the untwisting operation, the untwisted airflow is generated at the position where the yarn ends YA and YB of the left-twisted yarn Y are untwisted. Can be generated.

  Further, the unit control unit 36 transmits a control signal to keep the valve closed during the twisting operation to the right twisting valve 423 of the twisting airflow supply mechanism 42. Based on this control signal, the right twisting valve 423 keeps closing the right twisting flow path 421 during the twisting operation. On the other hand, a control signal for opening and closing the valve is transmitted to the left twisting valve 424 of the twisting airflow supply mechanism 42 during the twisting operation. Based on this control signal, the left twisting valve 424 opens and closes the left twisting flow path 422 during the twisting operation.

  With such control, the twisting nozzle 73 can generate a swirling airflow in a turning direction that twists the yarn ends YA and YB of the left-twisted yarn Y during the twisting operation.

  The yarn splicing device 21, the yarn winding unit 11, and the automatic winder according to the present embodiment described above have the following effects.

  According to the yarn splicing device 21, the twisted air flow for twisting the yarn ends YA and YB is swung in accordance with the twisting conditions of the yarn Y to be spliced by controlling the twisting air flow supply mechanism 42. Can be generated in any direction. For this reason, even if the type of the yarn Y is changed, the swirling direction of the twisted air flow generated in the twisting nozzle 73 can be selected and changed without replacing the parts of the yarn joining device 21.

  According to the yarn joining device 21, the yarn ends YA and YB are twisted by providing a plurality of twisting injection holes 54 and performing opening / closing control on the right twisting valve 423 and the left twisting valve 424. A twisting air flow is generated in the swirling direction according to the twisting condition of the yarn Y to be spliced. For this reason, it can be set as a simple structure instead of the complicated structure which moves the injection hole itself, or opens and closes it.

  According to the yarn splicing system 100, the setting unit 38 for setting the set twisting condition, and the unit control unit 36 for performing opening / closing control on the right twisting valve 423 and the left twisting valve 424 based on this setting are provided. . For this reason, the twisting airflow for twisting the yarn ends YA and YB can be easily changed according to the setting. As a result, even if the type of the yarn Y is changed, the swirling direction of the twisted airflow can be changed without performing complicated operations or replacing parts of the yarn splicing device 21.

  According to the yarn splicing system 100, when the type of the yarn Y is changed, the right twist injection hole 541 and the left one that generate twisted airflows for twisting the yarn ends YA and YB in different swirling directions are generated. A twisting injection hole 542 is provided in each of the first air chamber 531 and the second air chamber 532. For this reason, when the twist direction of the yarn Y is changed, the direction of the twisted air flow for twisting the yarn ends YA and YB can be easily changed, and the right twisted yarn Y or the left twisted yarn can be changed. Y can be handled without replacement of parts.

  According to the yarn joining system 100, the untwisting air flow for untwisting the yarn ends YA and YB is controlled at a position corresponding to the untwisting condition of the yarn Y to be spliced by the control with respect to the untwisting air flow supply mechanism 41. Can be generated. For this reason, when the twist direction of the yarn Y is changed, not only the twisted air flow for twisting the yarn ends YA and YB but also the untwisted air flow for untwisting the yarn ends YA and YB The position can be easily changed, and the right twisted yarn Y and the left twisted yarn Y can be handled without replacement of parts.

  According to the automatic winder, the machine base control unit 37 includes a touch panel as an operation input unit operable by an operator. For this reason, about the some yarn winding unit 11, the turning direction of a twisted air flow and the generation | occurrence | production position of an untwisting air flow can be changed collectively, and an operator's work man-hour can be reduced.

  Next, a yarn joining system 100 to which the yarn joining device 21 according to the second embodiment of the present invention is applied, and an automatic winder as a textile machine including the yarn joining system 100 will be described with reference to FIGS. In the first embodiment, the generation position of the untwisted air flow generated in the first untwisting nozzle 71 and the second untwisting nozzle 72 and the swirl direction of the twisted air flow generated in the twisting nozzle 73 are selected and changed. However, the present embodiment is greatly different in that the generation region of the twisted air flow generated by the twisting nozzle 73 can be selected and changed. The description of the configuration common to the first embodiment is omitted. In the following description, the yarn splicing device 21 is used exclusively for the left-twisted yarn Y. However, the yarn splicing device 21 may be used exclusively for the right-twisted yarn Y. Also good.

  First, the first untwisting nozzle 71, the second untwisting nozzle 72, and the twisting nozzle 73 of the yarn splicing device 21 of the present embodiment will be described in detail.

  As shown in FIG. 7, the first untwisting nozzle 71 is configured to generate an untwisting air flow that untwists the yarn end YA of the left-twisted yarn Y. The first untwisting nozzle 71 is formed with a first untwisting injection hole 713 as an injection hole for compressed air.

  The second untwisting nozzle 72 is configured to generate an untwisting air flow that untwists the yarn end YB of the left-twisted yarn Y. The second untwisting nozzle 72 is formed with a second untwisting injection hole 723 as an injection hole for compressed air.

  As shown in FIGS. 7 to 10, the twisting nozzle 73 of this embodiment is configured to generate twisting airflows for twisting the yarn ends YA and YB in different generation regions. The twist nozzle 73 has an air chamber 53 and a plurality of twist injection holes 54.

  As shown in FIG. 8, the air chamber 53 includes a first air chamber 531 and a second air chamber 532. Unlike the first embodiment, the air chamber 53 of the present embodiment is arranged so that the center lines of the first air chamber 531 and the second air chamber 532 coincide.

  The plurality of twisting injection holes 54 are injection holes for compressed air formed in the respective peripheral surfaces of the first air chamber 531 and the second air chamber 532. The twisting injection hole 54 has a main twisting injection hole 543 and a sub-twisting injection hole 544. The main twist injection hole 543 and the sub twist injection hole 544 are provided corresponding to the generation regions so that the twist air flow for twisting the yarn ends YA and YB can be generated in different generation regions. The main twisting injection hole 543 is an injection hole that generates a twisting air flow for twisting the yarn ends YA and YB in a region near the center of the air chamber 53 (first region). The auxiliary twisting injection hole 544 is an injection hole that generates a twisting air flow for twisting the yarn ends YA and YB in a region (second region) slightly separated from the center of the air chamber 53. Further, by injecting compressed air from both the main twist injection hole 543 and the sub twist injection hole 544, the twist air flow for twisting the yarn ends YA and YB is changed over the entire region of the air chamber 53 (first 3 regions).

  The directions of the main twist injection hole 543 and the sub twist injection hole 544 are the tangential directions of the peripheral walls of the first air chamber 531 and the second air chamber 532, respectively, and the twists of the left twist yarn ends YA and YB, respectively. It is formed in a direction to generate a swirling flow for hanging. One main twist injection hole 543 and one sub twist injection hole 544 are formed in each of the first air chamber 531 and the second air chamber 532. The main twist injection holes 543 and the sub twist injection holes 544 of the first air chamber 531 and the second air chamber 532 are formed side by side in the axial direction of the first air chamber 531 and the second air chamber 532, respectively. .

  The twist nozzle 73 is attached to a block 55 provided in the yarn splicing device 21. In the block 55, a main air passage 553 and a sub air passage 554 are formed. The main air channel 553 is a channel for supplying compressed air to the main twisting injection hole 543. The sub air channel 554 is a channel for supplying compressed air to the sub twist injection hole 544. A space communicating from the main air flow path 553 to the main twisting injection hole 543 is formed between the twisting nozzle 73 and the block 55 (not shown). This space serves as an air flow path from the main air flow path 553 to the main twisting injection hole 543 and supplies compressed air to the main twisting injection hole 543. In addition, a space that communicates from the auxiliary air flow path 554 to the auxiliary twisting injection hole 544 is also formed between the twisting nozzle 73 and the block 55 (not shown). This space becomes an air flow path extending from the sub air flow path 554 to the sub twist injection hole 544 and supplies compressed air to the sub twist injection hole 544. A main twist passage 425 described later is connected to the main air passage 553, and a sub twist passage 426 described later is connected to the sub air passage 554.

  Next, the yarn joining system 100 including the yarn joining device 21 will be described. The yarn splicing system 100 according to the present embodiment is a system that can select and change a region where a twisted air flow is generated without performing complicated operations or replacing parts of the yarn splicing device. The yarn joining system 100 includes a yarn joining device 21, a setting unit 38 of the machine base control unit 37, and a unit control unit 36 of the yarn winding unit 11.

  As shown in FIGS. 7 and 8, the yarn splicing device 21 includes a detwisting airflow supply mechanism 41 as a mechanism for supplying compressed air to the first untwisting nozzle 71, the second untwisting nozzle 72 and the twisting nozzle 73. And a twisted airflow supply mechanism 42.

  The untwisting air flow supply mechanism 41 supplies compressed air to the first untwisting nozzle 71 and the second untwisting nozzle 72. The untwisting air flow supply mechanism 41 includes an untwisting channel 416 and an untwisting valve 418.

  The untwisting channel 416 is a channel for supplying compressed air from the untwisting air pipe 62 to the first untwisting injection hole 713 and the second untwisting injection hole 723. An untwisting valve 418 is connected in the middle of the untwisting channel 416. The untwisting valve 418 is an electromagnetic valve that opens and closes the untwisting channel 416 based on a control signal.

  The twisting airflow supply mechanism 42 supplies compressed air to the twisting nozzle 73 for each region where the twisting airflow is generated. The twisted airflow supply mechanism 42 includes a main twisting channel 425, a subtwisting channel 426, a main twisting valve 427, and a subtwisting valve 428.

  The main twist channel 425 is a channel that supplies compressed air for each region where the twist air flow is generated, and is a channel that supplies compressed air from the twist air pipe 63 to the main twist injection hole 543. . A main twisting valve 427 is connected in the middle of the main twisting channel 425. The main twisting valve 427 is an electromagnetic valve that opens and closes the main twisting channel 425 based on a control signal.

  The sub-twisting channel 426 is a channel for supplying compressed air for each region where the twisting air flow is generated, and is a channel for supplying the compressed air from the twisting air pipe 63 to the sub-twisting injection hole 544. . A sub-twist valve 428 is connected in the middle of the sub-twist channel 426. The auxiliary twisting valve 428 is an electromagnetic valve that opens and closes the auxiliary twisting flow path 426 based on a control signal.

  The setting unit 38 of the machine base control unit 37 can collectively set operation settings of the yarn joining device 21 of each yarn winding unit 11 (see FIG. 1). The operator operates the touch panel of the setting unit 38 for setting. Regarding the operation setting of the yarn joining device 21, the generation region of the twisted air flow for twisting the yarn ends YA and YB according to the twisting condition of the yarn Y to be spliced is set as the set twisting condition. . In the present embodiment, any one of the first region to the third region is selected on the touch panel of the setting unit 38 as the generation region of the twisted air flow for twisting the yarn ends YA and YB of the yarn Y to be spliced. For example, the generation region of the twisted air flow for twisting the yarn ends YA and YB is determined, and the set twisting condition is set.

  The machine base control unit 37 transmits the setting content set by the setting unit 38 to the unit control unit 36 of each yarn winding unit 11. The unit control unit 36 controls the untwisted airflow supply mechanism 41 and the twisted airflow supply mechanism 42 so as to drive the yarn joining device 21 based on the set twisting conditions.

  Specifically, the unit control unit 36 twists the yarn ends YA and YB by performing open / close control on the main twist valve 427 and the sub twist valve 428 of the twist air flow supply mechanism 42. A twisting air flow is generated in a generation region corresponding to a twisting condition of a yarn to be spliced.

  A specific operation of the yarn joining system 100 will be described.

  First, referring to FIGS. 7 and 8, the operator operates the touch panel of the setting unit 38 to generate a twisted air flow for twisting the yarn ends YA and YB. A case where the region (first region) is selected will be described. In this case, it is determined that the generation area of the twisted air flow for twisting the yarn ends YA and YB is an area closer to the center of the air chamber 53 (first area), and this is set as the set twist condition. The The unit controller 36 controls the twisted airflow supply mechanism 42 so as to drive the yarn joining device 21 based on the set twisting conditions.

  Specifically, the unit controller 36 first transmits a control signal for opening and closing the valve to the untwisting valve 418 of the untwisting airflow supply mechanism 41 in order to perform the untwisting operation of the yarn ends YA and YB. . Based on this control signal, the untwisting valve 418 opens and closes the untwisting channel 416 during the untwisting operation. With such control, the first untwisting nozzle 71 and the second untwisting nozzle 72 can generate an untwisting air flow that untwists the yarn ends YA and YB of the yarn Y during the untwisting operation. .

  The unit control unit 36 transmits a control signal for opening and closing the valve to the main twisting valve 427 of the twisting airflow supply mechanism 42 during the twisting operation. Based on this control signal, the main twist valve 427 opens and closes the main twist passage 425 during the twisting operation. On the other hand, a control signal for keeping the valve closed is transmitted to the auxiliary twist valve 428 of the twist air flow supply mechanism 42. The auxiliary twisting valve 428 keeps closing the auxiliary twisting channel 426 during the twisting operation based on this control signal. With such control, the twisting nozzle 73 generates a twisting air flow for twisting the yarn ends YA and YB in a region near the center of the air chamber 53 (first region) during the twisting operation. be able to.

  Next, referring to FIGS. 7 and 9, the operator operates the touch panel of the setting unit 38 to generate a twisted air flow for twisting the yarn ends YA and YB. A case will be described in which a region (second region) slightly separated from the selected region is selected. In this case, it is determined that the generation region of the twisted air flow in which the yarn ends YA and YB are twisted is a region (second region) slightly separated from the center of the air chamber 53. Is set. The unit controller 36 controls the twisted airflow supply mechanism 42 so as to drive the yarn joining device 21 based on the set twisting conditions.

  Specifically, the unit controller 36 first transmits a control signal for opening and closing the valve to the untwisting valve 418 of the untwisting airflow supply mechanism 41 in order to perform the untwisting operation of the yarn ends YA and YB. . Based on this control signal, the untwisting valve 418 opens and closes the untwisting channel 416 during the untwisting operation. With such control, the first untwisting nozzle 71 and the second untwisting nozzle 72 can generate an untwisting air flow that untwists the yarn ends YA and YB of the yarn Y during the untwisting operation. .

  In addition, the unit control unit 36 transmits a control signal that keeps the valve closed during the twisting operation to the main twisting valve 427 of the twisting airflow supply mechanism 42. Based on this control signal, the main twisting valve 427 keeps closing the main twisting flow path 425 during the twisting operation. On the other hand, a control signal for opening and closing the valve is transmitted to the auxiliary twisting valve 428 of the twisting airflow supply mechanism 42 during the twisting operation. The sub-twisting valve 428 opens and closes the sub-twisting channel 426 based on this control signal during the twisting operation. By such control, the twist nozzle 73 causes the twisted air flow for twisting the yarn ends YA and YB to be slightly separated from the center of the air chamber 53 (second region) during the twisting operation. Can be generated.

  Next, referring to FIG. 7 and FIG. 10, the operator operates the touch panel of the setting unit 38 and the entire air chamber 53 as a region for generating a twisted air flow for twisting the yarn ends YA and YB. A case where the region (third region) is selected will be described. In this case, it is determined that the generation region of the twisted air flow for twisting the yarn ends YA and YB is the entire region (third region) of the air chamber 53, and this is set as the set twist condition. . The unit controller 36 controls the twisted airflow supply mechanism 42 so as to drive the yarn joining device 21 based on the set twisting conditions.

  Specifically, the unit controller 36 first transmits a control signal for opening and closing the valve to the untwisting valve 418 of the untwisting airflow supply mechanism 41 in order to perform the untwisting operation of the yarn ends YA and YB. . Based on this control signal, the untwisting valve 418 opens and closes the untwisting channel 416 during the untwisting operation. With such control, the first untwisting nozzle 71 and the second untwisting nozzle 72 can generate an untwisting air flow that untwists the yarn ends YA and YB of the yarn Y during the untwisting operation. .

  Further, the unit control unit 36 transmits a control signal for opening and closing the valve at the same timing to the main twisting valve 427 and the auxiliary twisting valve 428 of the twisting airflow supply mechanism 42 during the twisting operation. . Based on this control signal, the main twisting valve 427 and the auxiliary twisting valve 428 open and close the main twisting channel 425 and the auxiliary twisting channel 426 at the same timing during the twisting operation. By such control, the twisting nozzle 73 generates a twisting air flow for twisting the yarn ends YA and YB in the entire region (third region) of the air chamber 53 during the twisting operation. Can do.

  The yarn splicing device 21, the yarn winding unit 11, and the automatic winder according to the present embodiment described above have the following effects.

  According to the yarn splicing device 21, the twisted air flow for twisting the yarn ends YA and YB is generated according to the twisting conditions of the yarn Y to be spliced by controlling the twisting air flow supply mechanism 42. Can be generated in the region. For this reason, even if the type of the yarn Y is changed, it is possible to select and change the generation region of the twisted air flow generated by the twisting nozzle 73 without replacing the parts of the yarn joining device 21.

  According to the yarn joining device 21, a twisting unit that includes a plurality of twisting injection holes 54 and performs opening / closing control on the main twisting valve 427 and the auxiliary twisting valve 428 to twist the yarn ends YA and YB. The hanging air flow is generated in the generation region according to the twisting condition of the yarn Y to be spliced. For this reason, it can be set as a simple structure instead of the complicated structure which moves the injection hole itself, or opens and closes it.

  The yarn splicing system 100 includes a setting unit 38 that sets a set twisting condition, and a unit control unit 36 that performs opening / closing control on the main twisting valve 427 and the auxiliary twisting valve 428 based on this setting. For this reason, the twisting airflow for twisting the yarn ends YA and YB can be easily changed according to the setting. As a result, even if the type of the yarn Y is changed, the region where the twisted airflow is generated can be changed without performing a complicated operation or replacing the parts of the yarn joining device 21.

  According to the yarn joining system 100, when the type of the yarn Y is changed, the main twisting injection hole 543 and the subtwisting that generate twisting airflows for twisting the yarn ends YA and YB in different generation regions. A hanging injection hole 544 is provided in each of the first air chamber and the second air chamber. For this reason, even if the type of the yarn Y is changed, it is possible to easily change by selecting the region where the twisted air flow is generated according to the characteristics of the yarn Y to be spliced. Performance can be obtained.

  According to the automatic winder, the machine base control unit 37 includes a touch panel as an operation input unit that can be operated by an operator. For this reason, about the some yarn winding unit 11, the generation | occurrence | production area | region of a twisting airflow can be changed collectively, and an operator's work man-hour can be reduced.

  As mentioned above, although embodiment of this invention was described, this invention is not limited to the said embodiment, A various change is possible.

  For example, in Example 1, the position of the untwisted air flow generated in the first untwisted nozzle 71 and the second untwisted nozzle 72 and the swirl direction of the twisted air flow generated in the twisted nozzle 73 are selected and changed. In the second embodiment, the generation region of the untwisting air flow generated in the twisting nozzle 73 can be selected and changed. However, the present invention is not limited to this. For example, selecting and changing the position of the untwisted air flow generated in the first untwisted nozzle 71 and the second untwisted nozzle 72 and the swirling direction and generation region of the twisted air flow generated in the twisted nozzle 73 You may be able to.

  In the first embodiment, the center lines of the first air chamber 531 and the second air chamber 532 are arranged offset from each other. However, as in the second embodiment, the center lines of the first air chamber 531 and the second air chamber 532 are arranged. May be arranged so as to match. On the contrary, the center lines of the first air chamber 531 and the second air chamber 532 of the second embodiment may be arranged offset.

  In the first embodiment, the right twist injection hole 541 and the left twist injection hole 542 are formed in the first air chamber 531 and the second air chamber 532, respectively. The two air chambers 532 may be arranged so that the center lines thereof coincide with each other, and the right twist injection holes 541 and the left twist injection holes 542 may be formed in the air chamber 53 one by one.

  In the second embodiment, the main twist injection hole 543 and the sub twist injection hole 544 are respectively formed in the first air chamber 531 and the second air chamber 532 one by one. The holes 543 and the sub-twisting injection holes 544 may be formed one by one.

  In the first embodiment, as shown in FIGS. 5 and 6, the block 55 is provided with a right air passage 551 and a left air passage 552, and the right air passage 551 has a right twist. The hanging channel 421 is connected, and the left air channel 552 is connected to the left twisted channel 422. As shown in FIG. 11A, the block 55 is connected to the right twist channel 421 and the left twist channel. The channel 422 may be arranged. In the second embodiment, the block 55 is formed with a main air flow path 553 and a sub air flow path 554 as shown in FIGS. 8, 9, and 10. The main twist channel 425 is connected, and the sub air channel 426 is connected to the sub air channel 554. However, as shown in FIG. The hanging channel 426 may be arranged.

DESCRIPTION OF SYMBOLS 100 Yarn splicing system 2 Winding part 3 Yarn feeding part 11 Yarn winding unit 21 Yarn splicing device 36 Unit control part 37 Machine control part 38 Setting part 41 Untwisting air flow supply mechanism 42 Twisting air flow supply mechanism 51 Guide part 52 Slit 53 Air chamber 54 Plural twisting injection holes 55 Block 71 First untwisting nozzle 72 Second untwisting nozzle 73 Twisting nozzle 61 Air supply device 62 Main piping B Winding bobbin P Package Y Yarn

Claims (10)

A yarn joining device for joining yarn ends,
A twist nozzle that twists the ends of the yarn;
The twisted nozzle is configured to supply compressed air to generate a twisted airflow, to switch the swirling direction of the twisted airflow, and / or to switch the generation region of the twisted airflow. A twisted air flow supply mechanism,
With
Yarn that generates a twisted air flow for twisting yarn ends in a swirling direction and / or a generation region according to a twisting condition of a yarn to be spliced by controlling the twisting air flow supply mechanism. Relay device. The yarn splicing device according to claim 1,
The twisting nozzle has a plurality of twisting directions corresponding to the swirling direction and / or the generating region so that the twisting air flow for twisting the yarn ends can be generated in different swirling directions and / or different generating regions. With injection holes,
The twisted airflow supply mechanism supplies compressed air to the plurality of twisted injection holes according to the swirling direction of the twisted airflow and / or for each generation region of the twisted airflow. And a twisting valve that opens and closes the twisting channel for each swirling direction of the twisting airflow and / or for each generation region of the twisting airflow,
By performing opening / closing control on the twisting valve, the twisting air flow for twisting the yarn ends in the swirling direction and / or the generation region according to the twisting condition of the yarn to be spliced. Yarn splicing device to be generated. A yarn splicing device according to claim 1;
A setting unit that sets the swirling direction of the twisted air flow for twisting the yarn ends and / or the generation region of the twisted air flow as the set twisting conditions according to the twisting conditions of the yarn to be spliced When,
A control unit configured to control the twisted airflow supply mechanism based on the set twisting condition set by the setting unit;
Yarn splicing system. A yarn splicing device according to claim 2;
A setting unit that sets the swirling direction of the twisted air flow for twisting the yarn ends and / or the generation region of the twisted air flow as the set twisting conditions according to the twisting conditions of the yarn to be spliced When,
Based on the set twist condition set by the setting unit, a control unit that performs open / close control on the twist valve;
Yarn splicing system. The yarn splicing system according to claim 4,
The twist nozzle includes an air chamber in which the plurality of twist injection holes are formed on a peripheral surface,
The yarn splicing system including a main twisting injection hole and a sub-twisting injection hole, wherein the plurality of twisting injection holes generate a twisted air flow for twisting yarn ends in different generation regions. The yarn splicing system according to claim 5,
The air chamber of the twisting nozzle is disposed in a state where the yarn ends of two yarns to be spliced are overlapped from different directions, and a first air chamber for turning the yarn end of at least one yarn, A second air chamber for rotating the yarn end of at least the other yarn,
The yarn splicing system in which the primary twist injection hole and the secondary twist injection hole are formed in the first air chamber and the second air chamber, respectively, along the axial direction of the air chamber. The yarn splicing system according to claim 4,
The twist nozzle includes an air chamber in which the plurality of twist injection holes are formed on a peripheral surface,
The plurality of twisting injection holes perform twisting of the right twisting injection hole for generating a twisted air flow for twisting the yarn ends of the right twisted yarn and the yarn ends of the left twisted yarn. A yarn splicing system including a left twisting injection hole for generating a twisting airflow. The yarn splicing system according to claim 7,
The air chamber of the twisting nozzle is disposed in a state where the yarn ends of two yarns to be spliced are overlapped from different directions, and a first air chamber for turning the yarn end of at least one yarn, A second air chamber for rotating the yarn end of at least the other yarn,
The yarn splicing system in which the right twist injection hole and the left twist injection hole are formed side by side on the same circumference in the first air chamber and the second air chamber, respectively. The yarn splicing system according to any one of claims 3 to 8,
The yarn joining device is
In order to prepare for twisting yarn ends by the twisting nozzle, untwisting air flow for untwisting each yarn end can be generated at different positions; and
While supplying compressed air to the untwisting nozzle, an untwisting airflow supply mechanism configured to be able to switch the generation position of the untwisting airflow;
With
A yarn splicing system for generating an untwisted air flow for untwisting each yarn end at a position corresponding to the untwisting condition of the yarn to be spliced by controlling the untwisted air flow supply mechanism. A textile machine comprising the yarn joining system according to any one of claims 3 to 9, a plurality of yarn winding devices, and a machine base control unit that controls the plurality of yarn winding devices,
The yarn joining device and the control unit are installed in the yarn winding device,
The machine base control unit is provided with the setting unit,
The setting unit is a textile machine including an operation input unit operable by an operator.

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