JP6495051B2 - Confounding device - Google Patents

Description

  The present invention relates to an entanglement device for imparting entanglement to a yarn.

  For example, Patent Document 1 discloses that a yarn traveling in a yarn traveling space is entangled by injecting a fluid into a yarn traveling space formed between two nozzle plates (hereinafter referred to as “entangled portions”). A confounding device for providing is disclosed. In such an entanglement device, if the running of the yarn is unstable, the entanglement performance may be deteriorated. Therefore, in the entanglement device of Patent Document 1, guides are provided on the upstream side and the downstream side in the yarn traveling direction with respect to the entangled portion, and the traveling of the yarn is regulated by this guide. Specifically, in the entanglement device of Patent Document 1, a restriction groove extending along the height direction of the entanglement part is formed between two guides G1 (see FIG. 2), and the restriction groove allows the yarn to be threaded. Driving is regulated. In this way, by restricting the running of the yarn by the deep and narrow regulating groove, the regulating force on the yarn can be increased.

JP 2005-179807 A

  By the way, the fluid injected into the yarn traveling space of the entangled portion flows through the yarn traveling space toward the upstream side and the downstream side in the yarn traveling direction, and is then discharged from each end. At this time, as in Patent Document 1, if there is a guide extending in the height direction of the entangled portion, fluid discharged from the yarn traveling space (hereinafter referred to as “jet flow”) collides with the guide and is disturbed. A flow occurs, and the running of the yarn becomes unstable. In order to avoid such a problem, it may be possible to move the guide sufficiently away from the entangled portion. However, if this is done, the regulating force of the guide will be weakened, and the running of the yarn will also become unstable.

  In view of the above problems, the entanglement device according to the present invention aims to satisfactorily stabilize the traveling of the yarn.

  The present invention is an entanglement device that imparts entanglement to a yarn that travels along a yarn traveling direction, and has a yarn traveling space in which the yarn travels, and the yarn traveling by a fluid that is injected into the yarn traveling space. An entanglement portion that imparts entanglement to the yarn traveling in space, and a first restriction portion that is provided on at least one of an upstream side and a downstream side in the yarn traveling direction with respect to the entangled portion and regulates the traveling of the yarn. A second restricting portion that is provided between the entangled portion and the first restricting portion and restricts the traveling of the yarn, and the first restricting portion extends along a height direction of the entangled portion. It has a restriction groove extending, and an open space is provided around the second restriction portion through which the fluid discharged from the end of the yarn running space in the yarn running direction can pass. And

  In the present invention, a first restricting portion and a second restricting portion are provided as restricting portions that restrict the traveling of the yarn. Since the first restricting portion has a restricting groove extending along the height direction of the entangled portion, it is advantageous in terms of restricting force on the yarn. However, since the first restricting portion extends in the height direction, the jet flow from the yarn traveling space tends to collide with the first restricting portion, and the yarn traveling becomes unstable due to the turbulent flow generated at that time. There is a risk that Therefore, in the present invention, a second restricting portion is provided between the entangled portion and the first restricting portion. Even if it suppresses that a jet flow collides with the 1st control part by keeping the 1st control part away from the entanglement part by providing the 2nd control part, the fall of the control power to the yarn is compensated by the 2nd control part. be able to. Furthermore, since an open space through which the jet can pass is provided around the second restricting portion, collision of the jet and the second restricting portion can be avoided by the jet passing through the open space. As described above, according to the present invention, the first regulating portion, which has a high regulation force but is likely to collide with the jet, is moved away from the entangled portion, and the regulation force that is reduced for this is reduced by the second regulating portion where the jet hardly collides. Since it can be supplemented, the running of the yarn can be stabilized well.

  Here, it is preferable that the first restricting portion and the second restricting portion are provided on the upstream side and the downstream side of the entangled portion in the yarn traveling direction.

  By doing so, the traveling of the yarn in the entangled portion can be further stabilized.

  Further, it is an entanglement device for providing entanglement to the plurality of yarns traveling along the yarn traveling direction in a state of being arranged in the arrangement direction, wherein the entanglement portion includes the plurality of yarn traveling spaces arranged in the arrangement direction. The present invention is particularly effective when the plurality of yarns traveling in the plurality of yarn traveling spaces are imparted with the fluid by the fluid injected into each of the plurality of yarn traveling spaces.

  This is because, in such a so-called multi-type entanglement device, since the plurality of yarns arranged in the arrangement direction are restricted, the first restriction portion is also elongated in the arrangement direction. Therefore, the jet flow from the yarn traveling space is likely to collide with the first restricting portion, and the yarn traveling becomes more unstable. In this case, as described above, by providing the second restricting portion between the entangled portion and the first restricting portion, it is possible to keep the first restricting portion away from the entangled portion while suppressing a decrease in the regulating force on the yarn. This becomes possible, and the effect of stabilizing the running of the yarn becomes more remarkable.

  Here, it is preferable that the second restriction portion has a bar-shaped bar guide extending along the arrangement direction.

  By configuring the second restricting portion using a bar guide, an open space can be easily secured around the bar guide.

  Furthermore, it is preferable that a plurality of concave portions for sandwiching each of the plurality of yarns from both sides in the arrangement direction are formed in the bar guide in the arrangement direction.

  By providing such a plurality of recesses in the bar guide, each of the plurality of yarns can be prevented from shaking in the arrangement direction, and the running of the yarns can be made more stable.

  In the present invention, in addition to the first restricting portion having a high restricting force on the yarn, a second restricting portion through which the jet flow from the yarn traveling space can pass is provided between the entangled portion and the first restricting portion. Can be satisfactorily stabilized.

It is a schematic diagram which shows an example of the spinning take-up apparatus provided with a entanglement apparatus. It is a perspective view which shows the confounding apparatus of this embodiment. It is sectional drawing which shows the detail of an entanglement piece. It is a figure which shows typically the flow of the fluid in a yarn travel space. It is sectional drawing which shows the flow of a jet flow typically.

(Schematic configuration of the spinning take-up device)
An embodiment of the present invention will be described. FIG. 1 is a schematic diagram showing an example of a spinning take-up device provided with an entanglement device. The spinning take-up device 1 takes up a plurality of synthetic fiber yarns Y spun from the spinning device 2 and winds them around a plurality of bobbins B to form a plurality of packages P. In addition, the up-down and front-back directions shown in FIG. 1 are defined as the up-down and front-back directions of the spinning take-up device 1, respectively.

  The spinning take-up device 1 includes a drawing unit 3, take-up rollers 4, 5, an entanglement device 6, a take-up device 7, and the like. First, in the spinning device 2, the polymer supplied from a polymer supply device (not shown) such as a gear pump is pushed downward from the spinneret, and a plurality of yarns Y are arranged in the depth direction of the drawing in FIG. It is spun at.

  The plurality of yarns Y spun from the spinning device 2 are arranged along the drawing unit 3, the take-up roller 4, the entanglement device 6, and the take-up roller 5 in a state of being arranged at an appropriate yarn pitch by a yarn path guide (not shown). Drive on the yarn path. Further, the plurality of yarns Y are distributed in the front-rear direction from the take-up roller 5 and then wound around the plurality of bobbins B by the winding device 7.

  The drawing unit 3 is disposed below the spinning device 2. The extending unit 3 includes a heat retaining box 10 and a plurality of heating rollers (not shown) accommodated in the heat retaining box 10. The drawing unit 3 draws a plurality of yarns Y spun from the spinning device 2 while heating each of them with a plurality of heating rollers.

  The plurality of yarns Y drawn by the drawing unit 3 are sent to the winding device 7 by the take-up rollers 4 and 5. In addition, between the take-up rollers 4 and 5, an entanglement device 6 that entangles a large number of filaments constituting one yarn Y to provide entanglement is disposed. The entanglement device 6 will be described later in detail.

  The winding device 7 includes a machine base 11, a turret 12, two bobbin holders 13, a support frame 14, a contact roller 15, a traverse device 16, and the like. The winding device 7 rotates a bobbin holder 13 to simultaneously wind a plurality of yarns Y sent from the take-up roller 5 around a plurality of bobbins B to form a plurality of packages P.

  A disk-shaped turret 12 is attached to the machine base 11. The turret 12 is rotationally driven by a motor (not shown). Two long cylindrical bobbin holders 13 are cantilevered on the turret 12 so as to extend in the front-rear direction. Each bobbin holder 13 is mounted with a plurality of bobbins B arranged in the axial direction. As the turret 12 rotates, the two bobbin holders 13 can be switched between an upper winding position and a lower retracted position.

  The support frame 14 is a long frame-like member extending in the front-rear direction. The support frame 14 is fixedly attached to the machine base 11. A roller support member 17 that is long in the front-rear direction is attached to the lower part of the support frame 14 so as to be movable up and down with respect to the support frame 14. A contact roller 15 extending along the axial direction of the bobbin holder 13 is rotatably supported by the roller support member 17. The contact roller 15 comes into contact with the package P being formed, and a predetermined contact pressure is applied to the package P, so that the shape of the package P is adjusted.

  A traverse device 16 is attached immediately above the contact roller 15 of the roller support member 17. The traverse device 16 has a plurality of traverse guides 16a arranged in the front-rear direction. The plurality of traverse guides 16a are driven by a motor (not shown) and reciprocate in the front-rear direction. When the traverse guide 16a reciprocates while the yarn Y is hooked, the yarn Y is wound around the corresponding bobbin B while being traversed back and forth around the fulcrum guide 18.

(Configuration of entanglement device)
Next, details of the entanglement device 6 will be described. FIG. 2 is a perspective view showing the entanglement device 6. As shown in FIG. 2, the entanglement device 6 includes an entanglement portion 20 that entangles a plurality of yarns Y, a first regulating portion 30 that is disposed upstream and downstream of the entanglement portion 20 in the yarn traveling direction, and the entanglement portion 20. And a base 50 that supports the interlaced portion 20, the first restricting portion 30, and the second restricting portion 40. The second restricting portion 40 is disposed between the first restricting portion 30 and the first restricting portion 30. The yarn paths of the plurality of yarns Y that travel through the entangled portion 20 are defined by the first restricting portion 30 and the second restricting portion 40.

  Here, the “arrangement direction” shown in FIG. 2 indicates a direction in which a plurality of yarns Y are arranged. The “yarn traveling direction” refers to the traveling direction of the yarn Y, and is also a direction orthogonal to the arrangement direction in the present embodiment. The “height direction” refers to a direction in which the entangled portion 20 is erected from the base body 50 and is a direction orthogonal to the arrangement direction and the yarn traveling direction. In the present embodiment, for the sake of simplicity, the height direction is described as matching the vertical direction, but usually the height direction and the vertical direction often do not match.

(Entanglement part)
The entangled portion 20 is configured by arranging a plurality of entangled pieces 21 extending in the yarn traveling direction in the arrangement direction. FIG. 3 is a cross-sectional view showing details of the entangled piece 21, and shows a cross section at the center in the yarn traveling direction of two entangled pieces 21 adjacent to each other in the arrangement direction.

  A thread traveling space 22 penetrating in the thread traveling direction is formed in the entangled piece 21. The cross-sectional shape of the yarn traveling space 22 is an oval shape having a long axis in the height direction, and the yarn Y travels along the yarn traveling direction at substantially the center thereof. Then, the fluid is injected into the yarn traveling space 22 so that the yarn Y traveling in the yarn traveling space 22 is entangled. The cross-sectional shape of the yarn traveling space 22 is not limited to an oval shape, and may be other shapes such as a circle or a triangle.

  In FIG. 3, a thread insertion space 24 connected to the thread traveling space 22 in the arrangement direction is formed on the thread insertion surface 23 corresponding to the left surface of the entangled piece 21. The yarn insertion space 24 is located at the center of the yarn traveling space 22 in the height direction, and is formed over the entire yarn traveling direction of the entangled piece 21.

  In FIG. 3, a fluid ejection hole 26 is formed in the fluid ejection surface 25 corresponding to the right surface of the entangled piece 21 at substantially the same position as the yarn insertion space 24 in the height direction. The fluid ejection hole 26 is provided at the center of the entangled piece 21 in the yarn traveling direction, and communicates with a fluid supply path 27 formed inside the entangled piece 21.

  The two entangled pieces 21 adjacent to each other in the arrangement direction are arranged in a state where the yarn insertion surface 23 of the right entangled piece 21 and the fluid ejection surface 25 of the left entangled piece 21 are in contact with each other in FIG. . By being arranged in this way, the fluid ejection hole 26 of the left entanglement piece 21 and the yarn insertion space 24 of the right entanglement piece 21 communicate with each other.

  In addition, a fluid supply channel 51 is formed inside the base body 50 that supports the entanglement piece 21, and a fluid supply port 52 is formed on the surface (upper surface) that supports the entanglement piece 21. Yes. The upper end portion of the fluid supply port 52 is connected to the fluid supply passage 27 inside the entangled piece 21, and the lower end portion of the fluid supply port 52 is connected to the fluid supply passage 51 inside the base body 50.

  Here, a portion of the yarn insertion surface 23 that is above the yarn insertion space 24 is slightly retreated inward in the arrangement direction from a portion that is below the yarn insertion space 24. For this reason, in a state where the yarn insertion surface 23 of the right entanglement piece 21 and the fluid ejection surface 25 of the left entanglement piece 21 are in contact with each other, the two entanglement pieces adjacent to each other above the yarn insertion space 24. A slit 28 is formed between 21. The yarn Y can be disposed in the yarn traveling space 22 through the slit 28 and the yarn insertion space 24.

(Granting confounding)
In order to apply the entanglement to the yarn Y traveling in the yarn traveling space 22, a fluid is supplied to the fluid supply channel 51 of the base body 50 from a fluid supply device (not shown). For example, compressed air or the like is used as the fluid. The fluid supplied to the fluid supply channel 51 is ejected from the fluid ejection hole 26 through the fluid supply port 52 and the fluid supply channel 27, and the ejected fluid enters the yarn traveling space 22 through the yarn insertion space 24. Supplied. That is, the fluid supply device, the fluid supply channel 51, the fluid supply port 52, the fluid supply channel 27, and the fluid ejection hole 26 function as a fluid supply unit that supplies fluid to the yarn traveling space 22.

  FIG. 4 is a diagram schematically showing the flow of fluid in the yarn traveling space 22. As indicated by the arrows in FIG. 4, when the fluid jetted from the fluid supply unit to the yarn traveling space 22 collides with the inner wall of the yarn traveling space 22, the fluid is branched into both the upper and lower sides to generate a swirling flow. Entangling is imparted to the yarn Y traveling in the yarn traveling space 22 by the fluid flow at that time. Thereafter, the fluid is divided into an upstream side and a downstream side in the yarn traveling direction, and flows in the yarn traveling space 22 in parallel with the yarn Y.

  The fluid flowing in the yarn traveling space 22 toward the upstream side and the downstream side in the yarn traveling direction is eventually discharged from the upstream and downstream ends of the yarn traveling space 22 along the yarn traveling direction and becomes a jet. . At this time, when the jet flow from the yarn traveling space 22 collides with the first restricting portion 30 and the second restricting portion 40, a turbulent flow is generated and the traveling of the yarn Y becomes unstable. As a result, the yarn Y may deviate from the original yarn path, and proper entanglement may not be performed. Therefore, in the present embodiment, the first restricting portion 30 and the second restricting portion 40 are configured as follows.

(First Regulatory Department)
Returning to FIG. 2, the first restriction unit 30 will be described. The first restricting portion 30 is a restricting portion that mainly restricts the yarn Y in the arrangement direction, and is provided on the upstream side and the downstream side of the entangled portion 20 in the yarn traveling direction, respectively. The first restricting portion 30 is erected in the height direction from the base body 50, and a plurality of guide portions 31 sandwiching the yarn Y from both sides in the arrangement direction are connected in the arrangement direction. Each guide portion 31 has a U-shaped restriction groove 31a formed along the height direction, and the yarn Y travels in the restriction groove 31a. In this way, by restricting the travel of the yarn Y by the deep and narrow regulation groove 31a extending in the height direction, the regulation force on the yarn Y can be increased.

(Second Regulatory Department)
On the other hand, the second restricting portion 40 provided between the entangled portion 20 and the first restricting portion 30 is a restricting portion that mainly restricts the yarn Y in the height direction. In the present embodiment, as will be described later. In addition, the annular groove 41a can restrict the arrangement direction. The 2nd control part 40 is comprised because the bar-shaped bar guide 41 extended along an arrangement | positioning direction is supported by the supporting member 42 provided in the both ends. The bar guide 41 is disposed at a position separated from the upper surface of the base body 50, and an open space through which the jet flow from the yarn traveling space 22 can pass is secured around the bar guide 41.

  On the peripheral surface of the bar guide 41, a plurality of annular grooves 41a are formed in the arrangement direction corresponding to the yarns Y. The yarn Y is supported from below by the bottom of the annular groove 41a and travels in a state in which movement in the arrangement direction is restricted by both sides of the annular groove 41a. However, the annular groove 41 a of the second restricting portion 40 is shallower than the restricting groove 31 a of the first restricting portion 30, and the restricting force in the arrangement direction of the yarn Y is weaker than that of the first restricting portion 30.

(Comparison with conventional technology)
FIG. 5 is a cross-sectional view schematically showing the flow of a jet. More specifically, FIG. 5A shows the case where only the first restricting portion 30 is provided as in the prior art, and FIG. 5B shows the first restricting portion 30 in addition to the first restricting portion 30 as in the present embodiment. 2 In the case where the regulating part 40 is provided, the flow of the jet is schematically indicated by an arrow.

  As shown in FIG. 5a, in the prior art, the traveling of the yarn Y is restricted only by the first restricting portion 30. However, in order to ensure the regulating force for the yarn Y, the first regulating portion 30 is formed with a deep and narrow regulating groove 31a, and as a result, the first regulating portion 30 has a shape extending in the height direction. It was. For this reason, the jet flow from the yarn traveling space 22 easily collides with the first restricting portion 30, and the traveling of the yarn Y is unstable due to the turbulent flow generated at that time. In order to avoid the jet from colliding with the first restricting portion 30, a measure of moving the first restricting portion 30 away from the entangled portion 20 is also conceivable. However, the restricting force of the first restricting portion 30 is weakened, and the yarn Y Will become unstable.

  Therefore, in the present embodiment, as shown in FIG. 5 b, the second restricting portion 40 is provided between the entangled portion 20 and the first restricting portion 30. Therefore, even if the first restricting portion 30 is kept away from the entangled portion 20 to the extent that the jet flow from the yarn traveling space 22 can be sufficiently prevented from colliding with the first restricting portion 30, the second restricting portion 40 can reduce the regulating force. It can be strengthened. In addition, the second restricting portion 40 includes a bar guide 41, and an open space 43 is secured above the bar guide 41 and an open space 44 is secured below the bar guide 41. For this reason, the jet from the yarn traveling space 22 can flow through the open spaces 43 and 44 so as to avoid collision with the bar guide 41.

  As described above, according to the present embodiment, the traveling of the yarn Y can be regulated by the first regulating unit 30 and the second regulating unit 40, and the jet flow from the yarn traveling space 22 is generated by the first regulating unit 30 and the second regulating unit. Colliding with 40 can be avoided. Therefore, the running of the yarn Y can be satisfactorily stabilized, and consequently the entanglement performance can be improved.

  In particular, as in the present embodiment, the entanglement device 6 imparts entanglement to a plurality of yarns Y arranged in the arrangement direction, and a plurality of guide portions 31 are arranged in the arrangement direction, whereby a wall-shaped first restriction portion is provided. When it becomes 30, the effect is remarkable. This is because if the jet flow from each yarn traveling space 22 collides with the wall-shaped first restricting portion 30 and influences each other, the turbulence of the air becomes serious and the traveling of the yarn Y becomes more unstable. There is a fear. However, in the present embodiment, since the jet itself is prevented from colliding with the first restricting portion 30, the traveling of the yarn Y can be reliably stabilized even in the so-called multi-type entanglement device 6.

  In the present embodiment, the second restricting portion 40 is 30 mm or more and 50 mm in the yarn traveling direction from the fluid ejection hole 26 (see FIG. 3) formed at the center of the entangled portion 20 (entangled piece 21) in the yarn traveling direction. It is arranged at a position below. If the distance from the fluid ejection hole 26 of the second restricting portion 40 is less than 30 mm, the size of the entangled portion 20 in the yarn traveling direction is very small in order to prevent interference between the entangled portion 20 and the second restricting portion 40. Therefore, the entanglement imparting function of the entangled portion 20 may be reduced. On the other hand, when the separation distance is larger than 50 mm, the regulation force by the second regulating unit 40 is weakened, and the running of the yarn Y in the entangled unit 20 becomes unstable, and the entanglement is not appropriately given. Therefore, as described above, the second restricting portion 40 is disposed at a position of 30 mm or more and 50 mm or less from the fluid ejection hole 26, so that the confounding portion 20 can provide good confounding. In this embodiment, the dimension of the entangled portion 20 (entangled piece 21) in the yarn traveling direction is 15 mm or more and 25 mm or less, and the end surface of the entangled portion 20 (entangled piece 21) in the yarn traveling direction and the second restricting portion 40 Is 17.5 mm or more and 42.5 mm or less.

  Moreover, in this embodiment, the separation distance between the 1st control part 30 and the 2nd control part 40 in the yarn running direction is 10 mm or more and 150 mm or less. When the separation distance is less than 10 mm, the influence of the jet flow colliding with the first restricting portion 30 affects the second restricting portion 40 and the running of the yarn Y becomes unstable. On the other hand, if the separation distance is larger than 150 mm, the regulation force by the first regulation unit 30 is weakened, and the traveling of the yarn Y is also unstable. Therefore, by setting the separation distance between the first restricting portion 30 and the second restricting portion 40 to 10 mm or more and 150 mm or less, it is possible to stabilize the traveling of the yarn Y and to impart good entanglement. It becomes.

(effect)
As described above, in the present embodiment, the regulation force is high, but the first regulation part 30 that is likely to collide with the jet flow is moved away from the entanglement part 20, and the regulation force that is reduced due to the second regulation is such that the jet stream hardly collides. Since it can supplement by the part 40, the driving | running | working of the thread | yarn Y can be stabilized favorable.

  Moreover, in this embodiment, since the 1st control part 30 and the 2nd control part 40 are provided in the upstream and the downstream of the entanglement part 20 in the thread | yarn running direction, more travel of the thread | yarn Y in the entanglement part 20 is carried out. It can be stabilized.

  Further, the entanglement device 6 of the present embodiment imparts entanglement to a plurality of yarns Y that run along the yarn running direction in a state of being arranged in the arrangement direction, and the entanglement portion 20 is arranged in the arrangement direction. The plurality of yarn traveling spaces 22 are configured to be entangled with the plurality of yarns Y respectively traveling in the plurality of yarn traveling spaces 22 by the fluid sprayed to each of the plurality of yarn traveling spaces 22. In such a so-called multi-type entanglement device 6, since the plurality of yarns Y arranged in the arrangement direction are restricted, the first restriction portion 30 is also elongated in the arrangement direction. For this reason, the jet flow from the yarn traveling space 22 is likely to collide with the first restricting portion 30, and the traveling of the yarn Y is made more unstable. In this case, by providing the second restricting portion 40 between the entangled portion 20 and the first restricting portion 30, the first restricting portion 30 can be moved away from the entangled portion 20 while suppressing a decrease in the restriction force on the yarn Y. And the effect of stabilizing the running of the yarn Y becomes more remarkable.

  In the present embodiment, the second restricting portion 40 is configured to have a bar-shaped bar guide 41 extending along the arrangement direction. Therefore, the open spaces 43 and 44 are easily secured around the bar guide 41. can do.

  Further, in the present embodiment, the bar guide 41 is formed with a plurality of annular grooves (concave portions) 41a that sandwich the plurality of yarns Y from both sides in the arrangement direction, so that each of the plurality of yarns Y is Swaying in the arrangement direction can be suppressed, and the running of the yarn Y can be made more stable.

[Other Embodiments]
The embodiment of the present invention has been described above. However, the form to which the present invention can be applied is not limited to the above-described embodiment, and may be changed as appropriate without departing from the spirit of the present invention, as exemplified below. Can be added.

  For example, in the above-described embodiment, the entanglement device 6 is a so-called multi-type that imparts entanglement to a plurality of yarns Y, but the entanglement device 6 imparts entanglement to a single yarn Y. A single type may be used.

  In the above-described embodiment, the first restricting portion 30 is configured such that a plurality of guide portions 31 that sandwich the yarn Y from both sides in the arrangement direction are arranged in the arrangement direction. The configuration is not limited to this. For example, as shown in Patent Document 1, columnar guides may be arranged in the arrangement direction. That is, the first restricting portion 30 may be of any type as long as it extends in the height direction and effectively restricts the traveling of the yarn Y by the deep and narrow restricting groove 31a. .

  In the above-described embodiment, the second restricting portion 40 is configured to include the bar guide 41 in which a plurality of annular grooves 41a are formed. However, the specific configuration of the second restricting portion 40 is this. It is not limited to. For example, instead of the annular groove 41a formed over the entire circumference of the bar guide 41, a notch-shaped recess may be provided only in the portion that regulates the yarn Y. In the first place, it may be a bar guide that does not have the annular groove 41a or the concave portion and simply supports the yarn Y from below. Further, as shown in FIG. 5b, the bar guide 41 is not limited to a circular cross section, and may be, for example, a flat shape whose cross section is an ellipse.

  Moreover, in the above-mentioned embodiment, the 1st control part 30 and the 2nd control part 40 were provided in the both sides of the upstream and downstream of the entanglement part 20 in the yarn running direction. However, the first restricting portion 30 and the second restricting portion 40 may be provided only on one side of the entangled portion 20 in the yarn traveling direction.

  In the above-described embodiment, the open space 44 below the bar guide 41 is formed between the bar guide 41 and the base body 50. However, a space penetrating in the height direction may be formed in a region below the bar guide 41 in the base body 50, and this space may be used instead of the open space 44.

6: Entangling device 20: Entangling part 22: Yarn traveling space 30: First restricting part 31a: Restricting groove 40: Second restricting part 41: Bar guide 41a: Annular groove (concave part)
43, 44: Open space Y: Yarn

Claims (4)

A confounding device for confounding a plurality of yarns traveling along a yarn traveling direction in a state of being arranged in an arrangement direction ,
Entanglement having a plurality of yarn traveling spaces arranged in the arrangement direction and imparting entanglement to the plurality of yarns respectively traveling in the plurality of yarn traveling spaces by a fluid injected into each of the plurality of yarn traveling spaces. And
A first restricting portion that is provided on at least one of an upstream side and a downstream side in the yarn traveling direction with respect to the entangled portion, and restricts the traveling of the yarn;
A second restricting portion that is provided between the entangled portion and the first restricting portion and restricts the traveling of the yarn;
With
The first restricting portion has a restricting groove extending along a height direction of the entangled portion,
Around the second restricting portion, an open space is provided through which the fluid discharged from the end of the yarn running space in the yarn running direction can pass .
The second restricting portion has a bar-shaped bar guide extending along the arrangement direction,
The entanglement device , wherein a separation distance between the first restricting portion and the second restricting portion in the yarn traveling direction is 10 mm or more and 150 mm or less .   The entanglement device according to claim 1, wherein the first restriction portion and the second restriction portion are provided on an upstream side and a downstream side of the entanglement portion in the yarn traveling direction. The entanglement device according to claim 1 or 2 , wherein a plurality of concave portions are formed in the bar guide so as to sandwich each of the plurality of yarns from both sides in the arrangement direction. The second restricting portion, interlacing device according to any one of the claims 1 from the fluid injecting hole formed in the entangled portion is disposed at a position of 30mm or 50mm or less in the yarn traveling direction 3.

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