TWI746960B - Splicer for synthetic fiber yarn - Google Patents

Abstract

The splicer 1 for synthetic fiber yarns of the present invention includes a yarn splicing section 10 having a cavity 14 forming a space through which the first yarn Y1 and the second yarn Y2 can be inserted, and an injection hole 16a for injecting air ; And the first clamping mechanism 20 and the second clamping mechanism 30, which are arranged at the position of the cavity 14 intervening the yarn joining portion 10, the first yarn Y1 and the second yarn Y2 inserted in the space Each of them is held; and the cross-sectional shape of the cavity 14 formed in a plane orthogonal to the through direction of the cavity 14 is a circular shape, passing through the center C of the cavity 14 and connecting the inner peripheral surface 14a of the cavity 14 1 The straight line and the second straight line passing through the center C of the cavity 14 and connecting the inner peripheral surface 14a of the cavity 14 and orthogonal to the first straight line is 4.0 mm or more and 7.0 mm or less.

Description

Splicer for synthetic fiber yarn

The invention relates to a splicer for synthetic fiber yarn.

As a conventional splicer for synthetic fiber yarn, for example, a splicer for synthetic fiber yarn described in Patent Document 1 (Japanese Patent Application Laid-Open No. 10-17214) is known. The splicer for synthetic fiber yarn described in Patent Document 1 pulls the start and end of two synthetic fiber yarns in opposite directions into an air nozzle, and presses the end of the drawn yarn out of the air nozzle. The two sides of the air nozzle move the pressed side parts toward the air nozzle, so that the pulled-up yarn ends are slack in the air nozzle, and the yarn is spliced by the air flow in the air nozzle.

The splicer for synthetic fiber yarn is, for example, used in a yarn winding machine for winding synthetic fibers to splice the end of a yarn supplied to the bobbin and the beginning of the yarn of another supply bobbin. In the yarn winding machine, the yarn is wound on a bobbin while applying tension to the yarn to form a package. Therefore, the entanglement part of the yarns spliced by the synthetic fiber yarn with the splicer is stretched when tension is applied. In the yarn winding machine, when the entanglement part is unwound during the winding of the yarn, the winding action must be temporarily stopped to perform the operation, so the production efficiency is reduced. Therefore, the splicer for synthetic fiber yarns is required to form an entangled portion having a tensile elongation that can withstand the winding tension.

An object of one aspect of the present invention is to provide a splicer for synthetic fiber yarns, which can suppress the decrease in the tensile elongation of the entanglement portion, and can suppress the deviation of the decrease in the tensile elongation.

A splicer for synthetic fiber yarns according to one aspect of the present invention is for splicing one yarn and the other yarn composed of synthetic fibers, and includes: a yarn splicing section having a yarn forming part capable of forming one side The passage of the space through which the yarn and the other yarn are inserted, and the injection hole that opens to the passage and sprays fluid; and a pair of clamping mechanisms, which are arranged at positions across the passage of the yarn joining section, to pass through Each of the yarns on one side of the space and the yarn on the other side of the space are held; and the cross-sectional shape of the passage formed in a plane orthogonal to the through direction of the passage is circular, passing through the center of the passage and connecting the inside of the passage The first straight line of the peripheral surface and the second straight line passing through the center of the passage and connecting the inner peripheral surface of the passage and orthogonal to the first straight line shall be 4.0 mm or more and 7.0 mm or less.

In the splicer for synthetic fiber yarns according to an aspect of the present invention, the first straight line and the second straight line are 4.0 mm or more and 7.0 mm or less. In the splicer for synthetic fiber yarns, by setting the first straight line and the second straight line to 4.0 mm or more, when one yarn and the other yarn swing the clamping mechanism as a fixed point in the passage, It is possible to suppress the influence caused by contact with the inner peripheral surface of the passage. In addition, in a splicer for synthetic fiber yarns, when the first straight line and the second straight line are greater than 7.0 mm, it is difficult for the fluid in the passage to act on the yarn on one side and the yarn on the other side, so that the entanglement cannot be formed properly. Department. Therefore, in the splicer for synthetic fiber yarns, by setting the first straight line and the second straight line to 4.0 mm or more and 7.0 mm or less, the entangled portion can be appropriately formed. As a result, in the splicer for synthetic fiber yarns, the decrease in the tensile elongation of the entangled portion can be suppressed, and the deviation of the decrease in the tensile elongation can be suppressed.

0.8 mm以上

2.0 mm以下。於該構成中，能夠抑制絡合部之拉伸伸長率之降低，並能夠抑制拉伸伸長率之降低量之偏差。In one embodiment, the injection hole is circular, and the diameter of the injection hole is

0.8 mm or more

Below 2.0 mm. In this structure, the decrease in the tensile elongation of the complex portion can be suppressed, and the deviation of the decrease in the tensile elongation can be suppressed.

1.0 mm以上

1.8 mm以下。於該構成中，能夠抑制絡合部之拉伸伸長率之降低，並且能夠進一步抑制拉伸伸長率之降低量之偏差。In one embodiment, the diameter of the injection hole is

1.0 mm or more

Below 1.8 mm. In this structure, the decrease in the tensile elongation of the complex portion can be suppressed, and the deviation of the decrease in the tensile elongation can be further suppressed.

According to one aspect of the present invention, it is possible to suppress the decrease in the tensile elongation of the complex portion, and it is possible to suppress the deviation of the decrease in the tensile elongation.

Hereinafter, the preferred embodiments of the present invention will be described in detail with reference to the drawings. Furthermore, in the description of the drawings, the same or equivalent elements are given the same symbols, and repeated descriptions are omitted.

The splicer 1 for synthetic fiber yarn shown in Fig. 1 performs the first yarn (yarn on one side) Y1 (refer to Fig. 6A) made of synthetic fiber and the second yarn made of synthetic fiber. The yarn splicing device of the yarn end of the thread (the other yarn) Y2 (refer to Figure 6B). The splicer 1 for synthetic fiber yarn is, for example, in a yarn winding machine that winds the yarn from a supply bobbin to form a package, and is used to perform the end of the yarn of one supply bobbin and the other supply bobbin The splicing yarn at the beginning of the yarn. In this embodiment, the splicer 1 for synthetic fiber yarn is a so-called manual splicer.

The splicer 1 for synthetic fiber yarn includes a main body 3 and a yarn joining mechanism 5. The main body 3 is a frame for holding the yarn joining mechanism 5. The main body 3 is composed of a first main body portion 3a and a second main body portion 3b. Viewed from the side, the main body 3 has, for example, a substantially L-shape.

The first body portion 3a is a portion that is held by an operator when the splicer 1 for synthetic fiber yarns is used. The first body portion 3a has, for example, a substantially rectangular parallelepiped shape. The operation part 7 is provided in the 1st main body part 3a. The operating portion 7 is a button that is operated when the splicing operation of the synthetic fiber yarn splicer 1 is performed. In this embodiment, the operating portion 7 is located on one end side (the second body portion 3b side) of the first body portion 3a in the longitudinal direction, and is located within the movable range of the index finger when the first body portion 3a is held by the operator. Location.

A connecting portion 9 is provided at the lower end portion (the other end portion in the longitudinal direction) of the first body portion 3a. A pipe (illustration omitted) for supplying compressed air (fluid) (hereinafter, also simply referred to as "air") is connected to the connecting portion 9. The first main body part 3a may also contain a switch linked to the operation of the operation part 7, and parts that branch the compressed air supplied through the connection part 9 and the like.

A yarn joining mechanism 5 is provided in the second main body portion 3b. The second body portion 3b has, for example, a substantially rectangular parallelepiped shape. The second body portion 3b is provided at one end of the first body portion 3a. Specifically, the second body portion 3b is integrally provided with the first body portion 3a so that the longitudinal direction of the second body portion 3b and the longitudinal direction of the first body portion 3a form a specific angle (for example, 90° or less). The second body portion 3b exposes the yarn joining mechanism 5. In the second body portion 3b, a driving portion (for example, a cylinder, etc.) that drives the first clamping mechanism 20 and the second clamping mechanism 30 described later is accommodated.

As shown in FIG. 2 or FIG. 3, the yarn joining mechanism 5 includes a yarn joining section 10, a first clamping mechanism 20, and a second clamping mechanism 30. The first clamping mechanism 20 and the second clamping mechanism 30 are provided at positions where the cavity 14 of the yarn joining section 10 is interposed.

As shown in FIG. 4, the yarn joining section 10 has a yarn joining nozzle 12, a chamber (passage) 14, and an air flow path 16.

The yarn joining nozzle 12 is a block formed of metal or ceramic material. A slit 13 is provided on the yarn joining nozzle 12. The slit 13 introduces the yarn into the cavity 14. An inclined surface 15 is provided on the upper part of the slit 13. The inclined surface 15 guides the yarn to the slit 13. The inclined surface 15 is tapered from the upper surface 12a of the yarn splicing nozzle 12 toward the front end of the slit 13.

The cavity 14 is a passage through which the first yarn Y1 and the second yarn Y2 are inserted. As shown in FIG. 5, the chamber 14 penetrates the side surface 12b of one side of the yarn joining nozzle 12 and the side surface 12c of the other side. The cavity 14 forms a space through which the first yarn Y1 and the second yarn Y2 can be inserted. As shown in FIG. 4, the cross-sectional shape of the cavity 14 formed in the plane orthogonal to the penetration direction of the cavity 14 is circular. The circular shape includes a perfect circular shape, an elliptical shape, and the like. In this embodiment, the penetrating direction of the chamber 14 is the opposing direction of a pair of side surfaces 12b, 12c (refer to FIG. 5) of the yarn joining nozzle 12. In this embodiment, the cross-sectional shape of the cavity 14 is a perfect circle shape.

4.0 mm以上

7.0 mm以下。In the chamber 14, the first straight line passing through the center C of the chamber 14 and connecting the inner peripheral surface 14a of the chamber 14, and passing through the center C of the chamber 14 and connecting the inner peripheral surface 14a of the chamber 14 and connected to the first The second straight line perpendicular to the line is 4.0 mm or more and 7.0 mm or less. In this embodiment, the cross-sectional shape of the cavity 14 is a perfect circle shape. Therefore, as shown in FIG. 4, the first straight line and the second straight line have the same size and are the diameter R1 of the cavity 14. In this embodiment, the diameter R1 of the chamber 14 is

4.0 mm or more

7.0 mm or less.

0.8 mm以上

2.0 mm以下，較佳為

1.0 mm以上

1.8 mm以下，更佳為

1.3 mm以上

1.6 mm以下。噴射孔16a於腔室14中之位置根據設計適當設定即可。於空氣流路16之上游側(與噴射孔16a相反側)設置有連接部18。於連接部18連接有供給空氣之供給管等。The air flow path 16 allows the air supplied to the chamber 14 to circulate. The air flow path 16 has an injection hole 16 a that opens to the chamber 14. The injection hole 16 a communicates the air flow path 16 with the chamber 14. Air is injected into the cavity 14 from the injection hole 16a. The diameter R2 of the injection hole 16a is

0.8 mm or more

2.0 mm or less, preferably

1.0 mm or more

1.8 mm or less, better

1.3 mm or more

Below 1.6 mm. The position of the injection hole 16a in the chamber 14 may be appropriately set according to the design. A connecting portion 18 is provided on the upstream side of the air flow path 16 (the side opposite to the injection hole 16a). A supply pipe for supplying air and the like are connected to the connecting portion 18.

As shown in FIGS. 2 and 3, the first clamping mechanism 20 has a supporting portion 22 and a clamping portion 23. The first clamping mechanism 20 clamps (clamps) the yarn inserted into the cavity 14 of the yarn joining section 10.

The supporting portion 22 has a rectangular parallelepiped shape (corner column shape). As shown in FIG. 5, the supporting portion 22 has a pair of main surfaces 22a, 22b facing each other and a pair of side surfaces 22c, 22d facing each other. The side surface 22d is a surface opposite to the side surface 12b of the yarn joining nozzle 12.

The supporting part 22 holds the clamping part 23. The supporting part 22 is provided to be able to swing. Specifically, as shown in FIG. 2, a shaft 21 is provided at the base end (one end in the longitudinal direction) of the support portion 22. The shaft 21 is fixed to a frame or the like not shown. The support part 22 swings around the shaft 21. The support portion 22 is close to the second position P2 (see FIG. 6B) of the yarn splicing portion 10 at the front end portion (the other end in the longitudinal direction), and is further away from the first position P1 of the yarn splicing portion 10 from the second position P2 than the second position P2. (Refer to Figure 6A) to move between. That is, the first clamping mechanism 20 moves between the first position P1 and the second position P2. The support part 22 is moved by the drive of the drive part (illustration omitted), such as a cylinder, for example. In this embodiment, as described above, in the support portion 22, one end in the longitudinal direction where the shaft 21 is provided is the base end, and the other end in the longitudinal direction opposite to the one end is the front end.

The support part 22 is provided with a recessed part 25. The recessed portion 25 is provided on the front end side of the supporting portion 22. The recessed portion 25 opens on the main surface 22a and the pair of side surfaces 22c and 22d of the supporting portion 22. The recessed portion 25 exposes a part of the clamping portion 23. As shown in FIG. 2, when viewed from the main surface 22a side of the supporting portion 22, the recessed portion 25 has a rectangular shape. As shown in FIG. 3, when viewed from the side surface 22c side of the support portion 22, the recessed portion 25 has a rectangular shape.

As shown in FIG. 5, the support part 22 has the support surface 27a which slidably supports the second clamping member 26 (1st clamping member 24) mentioned later in the clamping part 23. As shown in FIG. The supporting surface 27a is provided in the central portion in the opposing direction of a pair of side surfaces 22c and 22d of the supporting portion 22. The supporting surface 27a has a shape (semi-circular shape) that is curved downward in a convex shape corresponding to the shape of the outer peripheral surface of the second clamping member 26 (the first clamping member 24). The supporting surface 27 a extends along the length direction of the supporting portion 22.

The supporting portion 22 has a first contact surface 27b at a position along the opposing direction of the pair of side surfaces 22c and 22d (the opposing direction of the first clamping mechanism 20 and the second clamping mechanism 30) across the supporting surface 27a. And the second contact surface 27c. The first contact surface 27 b and the second contact surface 27 c constitute the bottom surface of the recess 25. The first contact surface 27b is a surface capable of contacting the first yarn Y1 and the second yarn Y2 clamped by the clamping portion 23. The term "abutable" means that the first yarn Y1 and the second yarn Y2 clamped by the clamping portion 23 are in contact with the first abutting surface 27b, as well as the first yarn Y1 and the second yarn. When Y2 is not in contact with the first contact surface 27b. The second abutting surface 27c is a surface that abuts the first yarn Y1 and the second yarn Y2 clamped by the clamping portion 23. As shown in FIG. 2, the first contact surface 27 b and the second contact surface 27 c are provided at least at positions where the first clamping member 24 and the second clamping member 26 abut.

As shown in FIG. 5, the first contact surface 27b is a flat surface continuous with one end of the support surface 27a (the end on the side surface 22c side). The second contact surface 27c is a flat surface continuous with the other end of the supporting surface 27a (the end on the side surface 22d side). In the supporting portion 22, viewed from the opposing direction of the pair of main surfaces 22a, 22b, from the yarn joining portion 10 side, the second abutting surface 27c, the supporting surface 27a, and the first abutting surface 27b are provided in this order. noodle. That is, the second contact surface 27c is arranged between the yarn joining portion 10 and the clamping portion 23. The second abutting surface 27c is located on the inner side (P8L2-3) in the opposing direction of the first clamping mechanism 20 and the second clamping mechanism 30 that sandwich the yarn joining portion 10 therebetween (P8L2-3), and the first abutment The surface 27b is located on the outer side in the opposing direction.

The first contact surface 27b is substantially parallel to the main surfaces 22a and 22b. The first contact surface 27b is provided over the support surface 27a and the side surface 22c. The second contact surface 27c is substantially parallel to the main surfaces 22a and 22b. The second contact surface 27c is provided over the support surface 27a and the side surface 22d. The positions of the first abutting surface 27b and the second abutting surface 27c in the opposing direction of one of the main surfaces 22a and 22b of the supporting portion 22 are the same.

As shown in FIG. 2, the clamping portion 23 has a first clamping member 24 and a second clamping member 26. The first clamping member 24 and the second clamping member 26 each have a cylindrical shape. The first clamping member 24 and the second clamping member 26 are each formed of, for example, abrasion-resistant metal such as SUS. The diameter of each of the first clamping member 24 and the second clamping member 26 may be appropriately set.

The first clamping member 24 and the second clamping member 26 are arranged in the support portion 22 so that their end faces face each other. Specifically, the first clamping member 24 is arranged on the front end portion side of the support portion 22, and the second clamping member 26 is arranged on the proximal end portion side of the support portion 22 relative to the first clamping member 24. In the first clamping mechanism 20, in the clamping portion 23, the yarn is held between the end surface of the first clamping member 24 and the end surface of the second clamping member 26.

A part of the first clamping member 24 is accommodated in the supporting part 22, and a part of the first clamping member 24 is exposed in the recess 25 of the supporting part 22. The first clamping member 24 may be fixed to the supporting portion 22, or it may be arranged so as to be freely movable in the opposing direction (hereinafter, also referred to as the "opposing direction") of the first clamping member 24 and the second clamping member 26 (It can slide on the support surface 27a).

A part of the second clamping member 26 is accommodated in the supporting part 22, and a part of the second clamping member 26 is exposed in the recess 25 of the supporting part 22. The second clamping member 26 is provided in the support portion 22 so as to be movable. The second clamping member 26 moves in the above-mentioned opposing direction. The second clamping member 26 is urged toward the first clamping member 24 by a urging member (not shown) such as a spring. That is, the second clamping member 26 and the first clamping member 24 are in a state where no force other than the urging member is applied to the second clamping member 26, the end faces of each other are abutted by the force of the urging member. catch.

The second clamping member 26 moves in conjunction with the movement of the support portion 22. The second clamping member 26 moves in a direction away from the first clamping member 24 by the movement of the support portion 22 from the second position P2 (refer to FIG. 6B) to the first position P1 (FIG. 6A). Specifically, when the supporting portion 22 moves from the second position P2 to the first position P1, the second clamping member 26 is pressed in a direction opposite to the direction of urging of the urging member by a cam mechanism not shown in the figure. Down. Thereby, in the clamping portion 23, a gap (space) is formed between the first clamping member 24 and the second clamping member 26. Furthermore, the movement of the second clamping member 26 may not be interlocked with the movement of the support portion 22.

As shown in FIGS. 2 and 3, the second clamping mechanism 30 has a supporting portion 32 and a clamping portion 33. The second clamping mechanism 30 clamps (clamps) the yarn inserted into the cavity 14 of the yarn joining section 10.

The support portion 32 has a rectangular parallelepiped shape (corner column shape). As shown in FIG. 5, the support portion 32 has a pair of main surfaces 32a, 32b facing each other and a pair of side surfaces 32c, 32d facing each other. The side surface 32d is a surface opposite to the side surface 12c of the yarn joining nozzle 12.

The supporting part 32 holds the clamping part 33. The support portion 32 is provided to be able to swing. Specifically, as shown in FIG. 2, a shaft 31 is provided at the base end (one end in the longitudinal direction) of the support portion 32. The shaft 31 is fixed to a frame or the like not shown. The support portion 32 swings around the shaft 31. The support portion 32 is close to the second position P2 (refer to FIG. 6B) of the yarn joining portion 10 at the front end portion (the other end in the longitudinal direction), and is further away from the first position P1 of the yarn joining portion 10 at the front end portion than the second position P2 (Refer to Figure 6A) to move between. That is, the first clamping mechanism 20 moves between the first position P1 and the second position P2. The support part 32 is moved by the drive of the drive part (illustration omitted), such as a cylinder, for example. The driving part may be the same as the driving part of the driving support part 22, or may be provided separately. In this embodiment, as described above, in the support portion 32, one end in the longitudinal direction where the shaft 31 is provided is the base end, and the other end in the longitudinal direction opposite to the one end is the front end.

A recess 35 is provided in the support portion 32. The recess 35 is provided on the front end side of the support portion 32. The recess 35 opens on the main surface 32a and the pair of side surfaces 32c and 32d of the support portion 32. The recess 35 exposes a part of the clamping portion 33. As shown in FIG. 2, when viewed from the main surface 32a side of the supporting portion 32, the concave portion 35 has a rectangular shape. Viewed from the side surfaces 32c and 32d of the support portion 32, the recess 35 has a rectangular shape.

As shown in FIG. 5, the support part 32 has the support surface 37a which slidably supports the second clamping member 36 (1st clamping member 34) mentioned later in the clamping part 33. As shown in FIG. The supporting surface 37a is provided at the central portion in the opposing direction of a pair of side surfaces 32c and 32d of the supporting portion 32. The support surface 37a has a shape (semi-circular shape) that is curved downward in a convex shape corresponding to the shape of the outer peripheral surface of the second clamping member 36 (first clamping member 34). The supporting surface 37 a extends along the length direction of the supporting portion 32.

The support portion 32 has a first contact surface 37b and a second contact surface 37c at a position where the support surface 37a is interposed along the opposing direction of the pair of side surfaces 32c and 32d. The first contact surface 37 b and the second contact surface 37 c constitute the bottom surface of the recess 35. The first contact surface 37b is a surface capable of contacting the first yarn Y1 and the second yarn Y2 clamped by the clamping portion 33. The second abutting surface 37c is a surface that abuts the first yarn Y1 and the second yarn Y2 clamped by the clamping portion 33. As shown in FIG. 2, the first contact surface 37 b and the second contact surface 37 c are provided at least at positions where the first clamping member 34 and the second clamping member 36 abut.

As shown in FIG. 5, the first contact surface 37b is a flat surface continuous with one end of the support surface 37a (the end on the side surface 32c side). The second contact surface 37c is a flat surface continuous with the other end of the support surface 37a (the end on the side surface 32d side). In the supporting portion 32, viewed from the opposing direction of the pair of main surfaces 32a, 32b, from the yarn joining portion 10 side, the second abutting surface 37c, the supporting surface 37a, and the first abutting surface 37b are arranged in the order of noodle. That is, the second contact surface 37c is arranged between the yarn joining portion 10 and the clamping portion 33. The second abutting surface 37c is located on the inner side in the opposing direction of the first clamping mechanism 20 and the second clamping mechanism 30, which sandwich the yarn joining portion 10, and the first abutting surface 37b is in the pair Located on the outside in the direction.

The first contact surface 37b is substantially parallel to the main surfaces 32a and 32b. The first contact surface 37b is provided over the support surface 37a and the side surface 32c. The second contact surface 37c is substantially parallel to the main surfaces 32a and 32b. The second contact surface 37c is provided over the support surface 37a and the side surface 32d. The positions of the first abutting surface 37b and the second abutting surface 37c in the opposing direction of one of the supporting portions 32 to the main surfaces 32a and 32b are the same.

As shown in FIG. 2, the clamping portion 33 has a first clamping member 34 and a second clamping member 36. The first clamping member 34 and the second clamping member 36 each have a cylindrical shape. The first clamping member 34 and the second clamping member 36 are each formed of, for example, abrasion-resistant metal such as SUS. The diameter of each of the first clamping member 34 and the second clamping member 36 may be appropriately set.

The first clamping member 34 and the second clamping member 36 are arranged in the support portion 32 so that their respective end faces face each other. Specifically, the first clamping member 34 is arranged on the front end side of the supporting portion 32, and the second clamping member 36 is arranged on the proximal end side of the supporting portion 32 than the first clamping member 34. In the second clamping mechanism 30, in the clamping portion 33, the yarn is held between the end surface of the first clamping member 34 and the end surface of the second clamping member 36.

A part of the first clamping member 34 is accommodated in the supporting part 32, and a part of the first clamping member 34 is exposed in the recess 35 of the supporting part 32. The first clamping member 34 may be fixed to the supporting portion 32, or may be provided so as to be movable in the opposing direction of the first clamping member 34 and the second clamping member 36 (slidable on the supporting surface 37a).

A part of the second clamping member 36 is accommodated in the supporting part 32, and a part of the second clamping member 36 is exposed in the recess 35 of the supporting part 32. The second clamping member 36 is provided in the support portion 32 so as to be movable. The second clamping member 36 moves in the above-mentioned opposing direction. The second clamping member 36 is urged toward the first clamping member 34 by a urging member (not shown) such as a spring. That is, the second clamping member 36 and the first clamping member 34 are in a state where no force other than the urging member is applied to the second clamping member 36, the end faces of each other are abutted by the force of the urging member. catch.

The second clamping member 36 moves in conjunction with the movement of the support portion 32. The second clamping member 36 moves in a direction away from the first clamping member 34 by the movement of the support portion 32 from the second position P2 (refer to FIG. 6B) to the first position P1 (FIG. 6A). Specifically, when the support portion 32 moves from the second position P2 to the first position P1, the second clamping member 36 is pressed in the direction opposite to the urging direction of the urging member by a cam mechanism not shown. Down. Thereby, in the clamping portion 33, a gap (space) is formed between the first clamping member 34 and the second clamping member 36. Furthermore, the movement of the second clamping member 36 may not be interlocked with the movement of the support portion 32.

Next, a method (yarn splicing method) for forming an entangled portion using the splicer 1 for synthetic fiber yarn will be described.

First, as shown in FIG. 6A, the first yarn Y1 and the second yarn Y2 are set in the splicer 1 for synthetic fiber yarns. Specifically, the first yarn Y1 and the second yarn Y2 are located in the chamber 14 via the slit 13 of the yarn joining section 10, and are arranged in the first clamping mechanism 20 and the second clamping mechanism 20 located at the first position P1. Institution 30. In more detail, the first yarn Y1 and the second yarn Y2 are arranged between the first clamping member 24 and the second clamping member 26 of the first clamping mechanism 20, and are arranged in the second clamping mechanism 30 between the first clamping member 34 and the second clamping member 36. Thereby, the first yarn Y1 and the second yarn Y2 are placed on the first contact surface 27b and the second contact surface 27c of the first clamping mechanism 20, and are placed on the second clamping mechanism 30 on the first contact surface 37b and the second contact surface 37c.

When the first yarn Y1 and the second yarn Y2 are set in the synthetic fiber yarn splicer 1, the operation section 7 is operated (pressed). Thereby, in the splicer 1 for synthetic fiber yarn, the driving part is operated, and the 1st clamping mechanism 20 and the 2nd clamping mechanism 30 are operated.

Specifically, in the first clamping mechanism 20, the first clamping member 24 and the second clamping member 26 clamp the first yarn Y1 and the second yarn Y2. In the second clamping mechanism 30, the first clamping member 34 and the second clamping member 36 clamp the first yarn Y1 and the second yarn Y2. After that, as shown in FIG. 6B, the first clamping mechanism 20 and the second clamping mechanism 30 move from the first position P1 to the second position P2. Thereby, the first yarn Y1 and the second yarn Y2 are held between the clamping portion 23 and the clamping portion 33 in a relaxed state. In addition, the first yarn Y1 and the second yarn Y2 are held in a state of contacting at least the second contact surface 27c and the second contact surface 37c.

In addition, when the operation unit 7 is operated, air is injected into the chamber 14 from the injection hole 16 a via the air flow path 16. Thereby, the first yarn Y1 and the second yarn Y2 located in the cavity 14 are spliced by the action of air and form an entanglement part.

Next, the operation of the operation part 7 is released. Thereby, in the splicer 1 for synthetic fiber yarns, the injection of air from the injection hole 16a to the chamber 14 is stopped, and the first clamping mechanism 20 and the second clamping mechanism 30 operate.

Specifically, as shown in FIG. 6A, the first clamping mechanism 20 and the second clamping mechanism 30 move from the second position P2 to the first position P1. Along with this action, in the first clamping mechanism 20, the second clamping member 26 moves in a direction away from the first clamping member 24, and the first clamping member 24 and the second clamping member 26 are released from the first yarn. Clamping of thread Y1 and second thread Y2. Also in the second clamping mechanism 30, the second clamping member 36 moves in a direction away from the first clamping member 34 to release the first clamping member 34 and the second clamping member 36 from pairing the first yarn Y1 And the clamping of the second yarn Y2. Furthermore, after the first clamping mechanism 20 moves from the second position P2 to the first position P1, the first clamping member 24 and the second clamping member 26 may be released from the first yarn Y1 and the second yarn. The clamping of Y2. Similarly, after the second clamping mechanism 30 moves from the second position P2 to the first position P1, the first clamping member 34 and the second clamping member 36 may be released from the first yarn Y1 and the second yarn Y2. The clamping. With the above, the splicer 1 for synthetic fiber yarn completes the splicing of the first yarn Y1 and the second yarn Y2. Thereby, the first yarn Y1 and the second yarn Y2 become one yarn.

Next, the function and effect of the synthetic fiber yarn splicer 1 according to this embodiment will be described.

4.0 mm之情形時，第1紗線Y1及第2紗線Y2於藉由空氣之噴射而將夾持部23、33作為固定點於腔室14內擺動時，容易與腔室14之內周面14a接觸。如此，當第1紗線Y1及第2紗線Y2與腔室14之內周面14a接觸之比例增加時，由於接觸而引起之摩擦之影響變得顯著。藉此，第1紗線Y1及第2紗線Y2有可能受到某種損傷而無法適當地形成絡合部之虞。再者，於合成纖維紗用捻接器中，當腔室14之直徑R1大於

7.0 mm時，於腔室14內空氣難以作用於第1紗線Y1及第2紗線Y2，因此無法適當地形成絡合部。其結果，絡合部之拉伸伸長率會降低。In the splicer 1 for synthetic fiber yarn, the diameter R1 of the cavity 14 is less than

In the case of 4.0 mm, when the first yarn Y1 and the second yarn Y2 are swung in the cavity 14 with the clamping parts 23 and 33 as fixed points by the jet of air, they are easy to contact with the inner circumference of the cavity 14 The face 14a is in contact. In this way, when the ratio of the first yarn Y1 and the second yarn Y2 in contact with the inner peripheral surface 14a of the cavity 14 increases, the influence of friction due to the contact becomes significant. As a result, the first yarn Y1 and the second yarn Y2 may be damaged in some way, and the entangled portion may not be properly formed. Furthermore, in the splicer for synthetic fiber yarn, when the diameter R1 of the cavity 14 is greater than

At 7.0 mm, it is difficult for the air in the cavity 14 to act on the first yarn Y1 and the second yarn Y2, and therefore the entanglement part cannot be formed properly. As a result, the tensile elongation of the entangled part will decrease.

4.0 mm以上

7.0 mm以下。藉此，於合成纖維紗用捻接器中，第1紗線Y1及第2紗線Y2於腔室14內擺動時，能夠抑制由於與腔室14之內周面14a接觸而產生之影響，並且能夠使空氣適當地作用於第1紗線Y1及第2紗線Y2。因此，於合成纖維紗用捻接器1中，能夠適當地形成絡合部。其結果，於合成纖維紗用捻接器1中，能夠抑制絡合部之拉伸伸長率之降低，並且能夠抑制拉伸伸長率之降低量之偏差。In contrast, in the splicer 1 for synthetic fiber yarns of the present embodiment, the diameter R1 of the cavity 14 is

4.0 mm or more

7.0 mm or less. Thereby, in the splicer for synthetic fiber yarns, when the first yarn Y1 and the second yarn Y2 swing in the cavity 14, the influence due to contact with the inner peripheral surface 14a of the cavity 14 can be suppressed. In addition, air can be appropriately applied to the first yarn Y1 and the second yarn Y2. Therefore, in the splicer 1 for synthetic fiber yarns, the entangled part can be formed appropriately. As a result, in the splicer 1 for synthetic fiber yarns, the decrease in the tensile elongation of the entangled portion can be suppressed, and the deviation of the decrease in the tensile elongation can be suppressed.

In FIGS. 7A and 7B, the entanglement when the diameter R1 of the cavity 14 and the diameter R2 of the injection hole 16a are changed to form an entanglement part in the splicer 1 for synthetic fiber yarns related to this embodiment is shown in FIGS. 7A and 7B The measurement result of the tensile elongation of the part. TENSORAPID4 (trade name) manufactured by USTER was used in the measurement. FIG. 7A shows the result when the pressure of the air sprayed from the spray hole 16a is set to 4 kgf/cm ^2. FIG. 7B shows the result when the pressure of the air sprayed from the spray hole 16a is set to 5 kgf/cm ^2. Yarn series pre-stretched yarn (POY: Pre Oriented Yarn). The yarn to be measured is 88dtex-72f. The tensile elongation of the yarn that did not form an entanglement portion used in the measurement of FIG. 7A was 132.3 (%). The tensile elongation of the yarn without entanglement formed in the measurement of FIG. 7B was 131.1 (%).

0.8 mm以上2.0 mm以下、且腔室14之直徑R1為

4.0 mm以上7.0 mm以下之情形時，得到了拉伸伸長率之降低量比較小之結果。如圖7A所示，於空氣壓力為4kgf/cm² 之情形時，尤其係於腔室14之直徑R1為

5.5 mm、

6.0 mm及

7.0 mm之情形時，得到了拉伸伸長率之降低量比較小之結果。如圖7B所示，於空氣壓力為5kgf/cm² 之情形時，尤其係於腔室14之直徑R1為

6.0 mm及

7.0 mm之情形時，得到了拉伸伸長率之降低量比較小之結果。根據以上能夠確認，於合成纖維紗用捻接器1中，藉由將腔室14直徑R1設為

4.0 mm以上

7.0 mm以下，能夠抑制絡合部之拉伸伸長率之降低。As shown in FIGS. 7A and 7B, the diameter R2 of the injection hole 16a is

0.8 mm or more and 2.0 mm or less, and the diameter R1 of the chamber 14 is

In the case of 4.0 mm or more and 7.0 mm or less, the result that the decrease in tensile elongation is relatively small. As shown in Figure 7A, when the air pressure is 4kgf/cm ² , the diameter R1 of the chamber 14 is especially

5.5 mm,

6.0 mm and

In the case of 7.0 mm, the result that the reduction in tensile elongation is relatively small. As shown in Figure 7B, when the air pressure is 5kgf/cm ² , the diameter R1 of the chamber 14 is especially

6.0 mm and

In the case of 7.0 mm, the result that the reduction in tensile elongation is relatively small. From the above, it can be confirmed that in the splicer 1 for synthetic fiber yarns, by setting the diameter R1 of the cavity 14 to

4.0 mm or more

Below 7.0 mm, it can suppress the decrease of the tensile elongation of the complex part.

6.0 mm之情形時形成絡合部之紗線之結果。比較例表示於將腔室14之直徑R1設為

3.5 mm之情形時形成絡合部之紗線之結果。紗線係預拉伸紗線。作為測定對象之紗線係88dtex-48f-CD(陽離子可染紗線)。自噴射孔16a噴射之空氣壓力設定為3.5kgf/cm² 。「A」、「B」、「C」及「D」表示相同條件下之反覆試驗之結果。Next, the effect of the splicer 1 for synthetic fiber yarns is demonstrated based on an Example and a comparative example. In Fig. 8A and Fig. 8B, the measured value of the tensile elongation of the synthetic fiber that does not form an entangled part is set as the reference value. For the examples and comparative examples, the reduction (%) of the tensile elongation from the reference value is shown. . TENSORAPID4 (trade name) manufactured by USTER was used in the measurement. The embodiment is shown in the synthetic fiber yarn splicer 1 of this embodiment, and the diameter R1 of the cavity 14 is set to

The result of the yarn forming the entanglement in the case of 6.0 mm. The comparative example is shown in setting the diameter R1 of the chamber 14 as

The result of the yarn forming the entanglement in the case of 3.5 mm. The yarn is pre-stretched yarn. The yarn used for the measurement is 88dtex-48f-CD (cationically dyeable yarn). The pressure of the air sprayed from the spray hole 16a is set to 3.5 kgf/cm ² . "A", "B", "C" and "D" represent the results of repeated tests under the same conditions.

1.3 mm。於實施例1中，關於拉伸伸長率自基準值之降低量[%]，「A」為-3.5%，「B」為-2.1%，「C」為-2.3%，「D」為-0.7%。於實施例1中，降低量之最小值與最大值之差為2.8%。(Example 1, Comparative Example 1) In Example 1 and Comparative Example 1, the diameter R2 of the injection hole 16a was set to

1.3 mm. In Example 1, regarding the reduction in tensile elongation from the reference value [%], "A" is -3.5%, "B" is -2.1%, "C" is -2.3%, and "D" is- 0.7%. In Example 1, the difference between the minimum value and the maximum value of the reduction is 2.8%.

In Comparative Example 1, regarding the reduction in tensile elongation from the reference value [%], "A" is -7.6%, "B" is -5.3%, "C" is -14.9%, and "D" is- 12.8%. In Comparative Example 1, the difference between the minimum value and the maximum value of the reduction was 9.6%.

1.6 mm。於實施例2中，關於拉伸伸長率自基準值之降低量[%]，「A」為-8.5%，「B」為-12.4%，「C」為-12.3%，「D」為-8.8%。於實施例2中，降低量之最小值與最大值之差為3.9%。(Example 2, Comparative Example 2) In Example 2 and Comparative Example 2, the diameter R2 of the injection hole 16a was set to

1.6 mm. In Example 2, regarding the reduction in tensile elongation from the reference value [%], "A" is -8.5%, "B" is -12.4%, "C" is -12.3%, and "D" is- 8.8%. In Example 2, the difference between the minimum value and the maximum value of the reduction is 3.9%.

In Comparative Example 2, regarding the reduction in tensile elongation from the reference value [%], "A" is -10.5%, "B" is -8.4%, "C" is -16.6%, and "D" is- 9.6%. In Comparative Example 2, the difference between the minimum value and the maximum value of the reduction was 8.2%.

6.0 mm之情形時，與

3.5 mm之情形相較，存在拉伸伸長率之降低量較小之趨勢。又，於實施例1、2中，「A」~「D」之降低量之最小值與最大值之差小於比較例1、2。因此，能夠確認，於合成纖維紗用捻接器1中，拉伸伸長率之降低量之偏差較小。因此，能夠確認，於合成纖維紗用捻接器1中，能夠穩定地形成絡合部，能夠抑制絡合部之拉伸伸長率之降低，並且能夠抑制拉伸伸長率之降低量之偏差。As above, set the diameter R1 of the chamber 14 to

In the case of 6.0 mm, and

Compared with the case of 3.5 mm, there is a tendency for the decrease in tensile elongation to be smaller. In addition, in Examples 1 and 2, the difference between the minimum value and the maximum value of the reduction amount of "A" to "D" is smaller than that of Comparative Examples 1 and 2. Therefore, it can be confirmed that in the splicer 1 for synthetic fiber yarns, the variation in the decrease in the tensile elongation is small. Therefore, it can be confirmed that, in the splicer 1 for synthetic fiber yarns, the entangled portion can be stably formed, the decrease in the tensile elongation of the entangled portion can be suppressed, and the deviation of the decrease in the tensile elongation can be suppressed.

0.8 mm以上且

2.0 mm以下。於該構成中，如圖7A及圖7B所示，能夠抑制絡合部之拉伸伸長率之降低，並且能夠抑制拉伸伸長率之降低量之偏差。In the splicer 1 for synthetic fiber yarn of this embodiment, the injection hole 16a of the yarn joining part 10 has a circular shape. The diameter R2 of the injection hole 16a is

0.8 mm or more and

Below 2.0 mm. In this structure, as shown in FIGS. 7A and 7B, the decrease in the tensile elongation of the entangled portion can be suppressed, and the deviation of the decrease in the tensile elongation can be suppressed.

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

In the above embodiment, as the shape of the main body 3, the shape shown in FIG. 1 has been described as an example. However, the shape of the main body 3 is not limited to the shape shown in FIG. 1.

In the above embodiment, the first clamping members 24, 34 and the second clamping members 26, 36 are cylindrical, that is, the cross sections of the first clamping members 24, 34 and the second clamping members 26, 36 are circular. The shape of the shape is explained as an example. However, as long as the first clamping member and the second clamping member have a shape capable of clamping the yarn, they are not limited to a cylindrical shape, and can be made into various shapes (for example, a prismatic shape, etc.).

In the above-mentioned embodiment, the mode in which the support parts 22 and 32 move to the first position P1 and the second position P2 by swinging around the shafts 21 and 31 has been described as an example. However, the supporting parts 22 and 32 may be moved in a direction to approach each other and a direction to move away from each other in a state of being parallel to each other, for example.

In the above-mentioned embodiment, the form in which the cross-sectional shape of the cavity 14 is a perfect circular shape has been described as an example. However, the cross-sectional shape of the cavity 14 may also be an elliptical shape. In this case, in the chamber 14, the first straight line passing through the center C of the chamber 14 and connecting the inner peripheral surface 14a of the chamber 14, and passing through the center C of the chamber 14 and connecting the inner peripheral surface of the chamber 14 14a and the second straight line orthogonal to the first straight line should be 4.0 mm or more and 7.0 mm or less. That is, the major axis and minor axis of the elliptical chamber 14 may be 4.0 mm or more and 7.0 mm or less.

In the above embodiment, after the first yarn Y1 and the second yarn Y2 are arranged in the first clamping mechanism 20 and the second clamping mechanism 30 located at the first position P1, the first clamping mechanism 20 And the second clamping mechanism 30 moves from the first position P1 to the second position P2, and injects air into the cavity 14 from the injection hole 16a to form an entangled part as an example. However, the formation method of the entanglement part using the splicer 1 for synthetic fiber yarns is not limited to this.

For example, after arranging the first yarn Y1 and the second yarn Y2 in the first clamping mechanism 20 and the second clamping mechanism 30 located at the second position P2, the first clamping mechanism 20 and the second clamping mechanism 20 and the second clamping mechanism 30 The clamping mechanism 30 moves from the second position P2 to the first position P1, and after the first clamping mechanism 20 and the second clamping mechanism 30 are moved from the first position P1 to the second position P2, they are aligned from the injection hole 16a The chamber 14 sprays air to form a complex part.

In the above-mentioned embodiment, the mode in which the synthetic fiber yarn splicer 1 is a manual splicer which is gripped and used by an operator has been described as an example. However, the splicer for synthetic fiber yarns may be installed in a device or the like.

1‧‧‧Splicer for synthetic fiber yarn 3‧‧‧Ontology 3a‧‧‧The first body part 3b‧‧‧Second body part 5‧‧‧Yarn splicing mechanism 7‧‧‧Operation Department 9‧‧‧Connecting part 10‧‧‧Yarn splicing section 12‧‧‧Yarn splicing nozzle 12a‧‧‧Upper surface 12b‧‧‧The side of one side 12c‧‧‧The side of the other side 13‧‧‧Slit 14‧‧‧Chamber (passage) 14a‧‧‧Inner peripheral surface 16a‧‧‧Spray hole 20‧‧‧The first clamping mechanism 22‧‧‧Support Department 22a‧‧‧Main side 22b‧‧‧Main side 22c‧‧‧Side 22d‧‧‧Side 23‧‧‧Clamping part 24‧‧‧The first clamping member 25‧‧‧Clamping part 27a‧‧‧Support surface 27b‧‧‧First abutment surface 27c‧‧‧Second abutment surface 30‧‧‧The first clamping mechanism 32‧‧‧Support Department 32a‧‧‧Main side 32b‧‧‧Main side 32c‧‧‧Side 32d‧‧‧Side 33‧‧‧Clamping part 34‧‧‧The first clamping member 35‧‧‧Concave 37a‧‧‧Support surface 37b‧‧‧First abutment surface 37c‧‧‧Second abutment surface C‧‧‧Center P1‧‧‧1st position P2‧‧‧2nd position R1‧‧‧diameter (first straight line, second straight line) R2‧‧‧diameter Y1‧‧‧The first yarn (a yarn of one side) Y2‧‧‧The second yarn (the other yarn)

Fig. 1 is a perspective view showing a splicer for synthetic fiber yarn according to an embodiment. Figure 2 is a view of the yarn joining mechanism viewed from above. Figure 3 shows a side view of the yarn joining mechanism. Fig. 4 shows a cross-sectional view of the yarn joining part. Fig. 5 is a cross-sectional view taken along the line V-V in Fig. 2. Fig. 6A is a diagram showing the operation of the yarn joining mechanism. Fig. 6B is a diagram showing the operation of the yarn joining mechanism. Fig. 7A is a graph showing the measurement result of the tensile elongation of the complex part. Fig. 7B is a graph showing the measurement result of the tensile elongation of the complex part. Fig. 8A is a diagram showing an embodiment and a comparative example. Fig. 8B is a diagram showing an embodiment and a comparative example.

5‧‧‧Yarn splicing mechanism

10‧‧‧Yarn splicing section

12‧‧‧Yarn splicing nozzle

12a‧‧‧Upper surface

12b‧‧‧The side of one side

12c‧‧‧The side of the other side

14a‧‧‧Inner peripheral surface

16a‧‧‧Spray hole

20‧‧‧The first clamping mechanism

22‧‧‧Support Department

22a‧‧‧Main side

22b‧‧‧Main side

22c‧‧‧Side

22d‧‧‧Side

23‧‧‧Clamping part

24‧‧‧The first clamping member

25‧‧‧Clamping part

27a‧‧‧Support surface

27b‧‧‧First abutment surface

27c‧‧‧Second abutment surface

30‧‧‧The first clamping mechanism

32‧‧‧Support Department

32a‧‧‧Main side

32b‧‧‧Main side

32c‧‧‧Side

32d‧‧‧Side

33‧‧‧Clamping part

34‧‧‧The first clamping member

35‧‧‧Concave

37a‧‧‧Support surface

37b‧‧‧First abutment surface

37c‧‧‧Second abutment surface

R1‧‧‧diameter (first straight line, second straight line)

R2‧‧‧diameter

Claims (3)

A splicer for synthetic fiber yarns, which performs splicing of one yarn and the other yarn made of synthetic fibers, and includes: a yarn splicing section having a yarn forming the above-mentioned one and the other The passage of the space through which the yarn is inserted, and the ejection hole that opens to the passage and ejects fluid; and a pair of clamping mechanisms, which are provided at the position of the passage of the yarn connecting portion, and the pair is inserted into the Each of the above-mentioned one yarn and the above-mentioned other yarn in the space is held; and the above-mentioned pair of clamping mechanisms respectively have clamps for clamping each of the above-mentioned one yarn and the above-mentioned other yarn Section, the cross-sectional shape of the passage formed in a plane orthogonal to the penetration direction of the passage is circular, the first straight line that passes through the center of the passage and connects the inner peripheral surface of the passage, and passes through the center of the passage and The second straight line that connects the inner peripheral surface of the passage and is orthogonal to the first straight line is 4.0 mm or more and 7.0 mm or less. The splicer for synthetic fiber yarn according to claim 1, wherein the injection hole has a circular shape, and the diameter of the injection hole is

0.8mm or more

Below 2.0mm. The splicer for synthetic fiber yarns according to claim 2, wherein the diameter of the injection hole is

1.0mm or more

Below 1.8mm.

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