TWI787495B - Splicer for synthetic fiber yarn - Google Patents

Abstract

0.8 mm以上

1.3 mm以下。The synthetic fiber yarn splicer 1 of the present invention includes: a yarn splicing unit 10 having a chamber 14 forming a space through which the first yarn Y1 and the second yarn Y2 can pass, and a chamber 14 that opens to the chamber 14 and ejects a fluid. The injection hole 16a; and the first clamping mechanism 20 and the second clamping mechanism 30, which are arranged at the position across the chamber 14 of the yarn joining part 10, for the first yarn Y1 and the second yarn passing through the space Each of the lines Y2 is clamped, the injection hole 16a is circular, and the diameter R2 of the injection hole 16a is

0.8 mm or more

1.3 mm or less.

Description

Splicer for synthetic fiber yarn

The present invention relates to a splicer for synthetic fiber yarn.

As a conventional splicer for synthetic fiber yarns, for example, a splicer for synthetic fiber yarns described in Patent Document 1 (JP-A-10-17214) is known. The splicer for synthetic fiber yarns described in Patent Document 1 aligns the beginning and end of two synthetic fiber yarns in opposite directions and pulls them into the air nozzle. The two sides are pressed, and the pressed two sides are moved toward the direction of the air nozzle, so that the aligned yarn ends have slack in the air nozzle, and are connected by the air flow in the air nozzle yarn.

The synthetic fiber yarn splicer is used, for example, in a yarn winding machine for winding synthetic fibers, to splice the end of the yarn supplied to one bobbin and the beginning of the yarn supplied to the other bobbin. In the yarn winding machine, the yarn is wound on the bobbin while applying tension to the yarn to form a package. Therefore, the entangled portion of the yarns spliced by the synthetic fiber yarn splicer is pulled when tension is applied. In the yarn winding machine, when the entangled part is unwound during the winding of the yarn, the winding operation must be temporarily stopped for operation, thereby reducing production efficiency. Therefore, the splicer for synthetic fiber yarns is required to form an entanglement portion having a tensile elongation capable of withstanding the tension of winding.

In conventional splicers for synthetic fiber yarns, depending on the type of yarn, the entangled portion may not be properly formed. In particular, synthetic fiber yarns that are thin and have a small number of filaments are difficult to entangle, so they cannot form entangled parts, or even if they form entangled parts, they are easy to untangle. Therefore, in the case of thin synthetic fiber yarns with a small number of filaments, the yarn splicing is performed manually by an operator. However, in the manual operation performed by the operator, variations may occur in the formed entangled portion depending on the proficiency of the operator, so it is not possible to stably form a entangled portion having a tensile elongation that can withstand the tension of the coiling. complexing department. In addition, in the entangled part formed by manual operation, the yarns are connected at one place, so that yarn breakage is likely to occur. Therefore, it is required in a splicer for synthetic fiber yarns to be able to form an entangled portion having a tensile elongation that can withstand winding tension even in thinner yarns with a small number of filaments.

An object of one aspect of the present invention is to provide a splicer for synthetic fiber yarns capable of suppressing a decrease in the tensile elongation of the entangled portion.

0.8 mm以上

1.3 mm以下。A splicer for synthetic fiber yarn according to one aspect of the present invention is for splicing one yarn made of synthetic fibers and the other yarn, and the splicer for synthetic fiber yarn includes: a yarn splicing part having a The passage of the space through which the yarn of one side and the yarn of the other party can pass through and the injection hole opening to the passage and injecting fluid; Each of the yarn on one side of the space and the yarn on the other side is clamped, the injection hole is circular, and the diameter of the injection hole is

0.8 mm or more

1.3 mm or less.

0.8 mm之情形時，向通路內噴射之流體之力較小，因此流體無法對一方之紗線以及另一方之紗線適當地起作用，而於通路內一方之紗線以及另一方之紗線不會被適當地擺動，因此難以形成絡合部。當噴射孔之直徑變得大於

1.3 mm時，流體有可能對一方之紗線以及另一方之紗線過度地作用，難以適當地形成絡合部。於本發明之合成纖維紗用接合器中，噴射孔之直徑為

0.8 mm以上

1.3 mm以下。藉此，於合成纖維紗用接合器中，能夠使流體適當地作用於一方之紗線以及另一方之紗線，於通路內一方之紗線以及另一方之紗線被適當地擺動，因此能夠適當地形成絡合部。藉此，於合成纖維紗用接合器中，能夠對紗線形成絡合部，並且能夠抑制絡合部之拉伸伸長率之降低。In the splicer for synthetic fiber yarn according to one aspect of the present invention, one of the yarns clamped by the pair of clamping mechanisms and the other yarn are fixed in the passage through the position clamped by the clamping mechanisms. Inward swing to form a complex. The diameter of the injection hole is less than

In the case of 0.8 mm, the force of the fluid sprayed into the channel is small, so the fluid cannot properly act on the yarn of one side and the yarn of the other side, and the yarn of one side and the yarn of the other side in the channel It is not properly shaken, so it is difficult to form a entangled part. When the diameter of the injection hole becomes larger than

When the thickness is 1.3 mm, the fluid may act excessively on one yarn and the other yarn, making it difficult to properly form the entangled portion. In the synthetic fiber yarn splicer of the present invention, the diameter of the injection hole is

0.8 mm or more

1.3 mm or less. Thereby, in the splicer for synthetic fiber yarns, the fluid can be properly acted on one yarn and the other yarn, and the one yarn and the other yarn can be properly oscillated in the passage, so that A complex is formed appropriately. Thereby, in the splicer for synthetic fiber yarns, the entangled portion can be formed on the yarn, and the decrease in the tensile elongation of the entangled portion can be suppressed.

1.0 mm以上

1.3 mm以下。於該構成中，能夠更適當地形成絡合部。In one embodiment, it is also possible that the diameter of the injection hole is

1.0 mm or more

1.3 mm or less. In this configuration, the complex portion can be formed more appropriately.

3.0 mm以上

4.0 mm以下。當通路之直徑小於

3.0 mm時，於一方之紗線以及另一方之紗線於通路內被擺動時，變得容易與通路之內周面接觸，於通路內中紗線難以撚回。因此，有可能無法適當地形成絡合部。當通路之直徑大於

4.0 mm時，自噴射孔噴射之流體會於通路內分散，流體對一方之紗線以及另一方之紗線難以適當地作用，難以形成絡合部。於合成纖維紗用接合器中，通路之直徑為

3.0 mm以上

4.0 mm以下，因此能夠抑制與通路之內周面之接觸導致之影響，並且能夠使流體適當地作用於一方之紗線以及另一方之紗線。藉此，於合成纖維紗用接合器中，能夠更可靠地於紗線上形成絡合部，能夠進一步抑制絡合部之拉伸伸長率之降低。In one embodiment, the passage is circular when viewed from the through direction of the passage, and the diameter of the passage is

3.0 mm or more

4.0 mm or less. When the diameter of the passage is less than

When the thickness is 3.0 mm, when the yarn of one side and the yarn of the other side are oscillated in the passage, it becomes easy to contact the inner peripheral surface of the passage, and the yarn is difficult to twist in the passage. Therefore, there is a possibility that a complex part cannot be formed appropriately. When the diameter of the passage is greater than

When the thickness is 4.0 mm, the fluid sprayed from the injection hole will be dispersed in the passage, and it will be difficult for the fluid to properly act on one yarn and the other yarn, and it will be difficult to form an intertwined part. In splicers for synthetic fiber yarns, the diameter of the channel is

3.0 mm or more

4.0 mm or less, it is possible to suppress the influence of the contact with the inner peripheral surface of the passage, and to make the fluid act appropriately on one yarn and the other yarn. Thereby, in the splicer for synthetic fiber yarns, the entangled portion can be more reliably formed on the yarn, and the decrease in the tensile elongation of the entangled portion can be further suppressed.

In one embodiment, one of the yarns whose thickness is 55 dtex or less and the number of filaments is 10f or less may be joined to the other yarn. A yarn having a thickness of 55 dtex or less and a number of filaments of 10f or less is difficult to form an entangled part. The splicer for synthetic fiber yarn has the above-mentioned structure, whereby it is possible to form an intertwined part even in a thinner yarn with a thickness of 55 dtex or less and a number of filaments of 10f or less, that is, a yarn with a small number of filaments .

According to one aspect of the present invention, it is possible to suppress a decrease in the tensile elongation of the entangled portion.

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

The synthetic fiber yarn splicer 1 shown in Fig. 1 is used to perform the yarn end of the first yarn (one yarn) Y1 (refer to Fig. 6A) made of synthetic fibers and the second yarn made of synthetic fibers. A device for splicing the yarn end of the yarn (the other yarn) Y2 (refer to FIG. 6A ). In this embodiment, the synthetic fiber yarn splicer 1 splices the first yarn Y1 and the second yarn Y2 having a thickness of 55 dtex or less and a filament count of 10f or less. The splicer 1 for synthetic fiber yarn is, for example, in a yarn winding machine that winds yarn from a supply bobbin to form a package, and is used to bond the end of the yarn of one supply bobbin to another supply bobbin. Yarn splicing at the beginning of the yarn. In this embodiment, the synthetic fiber yarn splicer 1 is a so-called manual splicer.

The synthetic fiber yarn splicer 1 includes a main body 3 and a yarn splicing mechanism 5 . The main body 3 is the frame that holds the yarn joining mechanism 5 . The main body 3 is comprised of the 1st main body part 3a and the 2nd main body part 3b. The main body 3 is, for example, substantially L-shaped when viewed from the side.

The first main body portion 3a is a portion to be held by the operator when using the synthetic fiber yarn splicer 1 . The first main 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 operation part 7 is a button that is operated when performing a yarn splicing operation in the synthetic fiber yarn splicer 1 . In this embodiment, the operation part 7 is provided on one end side of the first body part 3a in the longitudinal direction (the second body part 3b side), and is located within the range of movement of the index finger when the first body part 3a is held by the operator. the part.

The connection part 9 is provided in the lower end part (the other end part of the longitudinal direction) of the 1st main body part 3a. A pipe (not shown) for supplying compressed air (fluid) (hereinafter also simply referred to as "air") is connected to the connection part 9 . A switch interlocked with the operation of the operation part 7, a member for branching the compressed air supplied through the connection part 9, etc. may also be accommodated in the first main body part 3a.

The yarn joining mechanism 5 is provided on the second main body portion 3b. The second main body portion 3b has, for example, a substantially rectangular parallelepiped shape. The second body part 3b is provided at one end of the first body part 3a. Specifically, the second main body portion 3b is integrally formed with the first main body portion 3a such that the longitudinal direction of the second main body portion 3b and the longitudinal direction of the first main body portion 3a form a specific angle (for example, 90° or less). set up. The second main body portion 3b exposes the yarn joining mechanism 5 . The drive part etc. (for example, a cylinder etc.) which drive the 1st clamp mechanism 20 and the 2nd clamp mechanism 30 mentioned later are accommodated in the 2nd main body part 3b.

As shown in FIG. 2 or FIG. 3 , the yarn joining mechanism 5 includes a yarn joining unit 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 sandwiching the chamber 14 of the yarn joining unit 10 .

As shown in FIG. 4 , the yarn joining unit 10 has a yarn joining nozzle 12 , a slit 13 , a chamber (passage) 14 , and an air flow path 16 .

The yarn joining nozzle 12 is a block made of metal or ceramic material. The yarn joining nozzle 12 has an upper surface 12a and a pair of side surfaces 12b, 12c. The slit 13 is provided in the yarn joining nozzle 12 . The slit 13 is a part communicating with the chamber 14 and introducing the yarn into the chamber 14. The slit 13 is formed over the upper surface 12 a of the yarn joining nozzle 12 and the cavity 14 . The width of the slit 13 is, for example, 0.4 mm. An inclined surface 15 is disposed on the top of the slit 13 . The inclined surface 15 guides the yarn toward the slit 13 . The inclined surface 15 is tapered from the upper surface 12 a of the yarn joining nozzle 12 toward the slit 13 .

3.0 mm以上

4.0 mm以下。The chamber 14 is a passage through which the first yarn Y1 and the second yarn Y2 pass. As shown in FIG. 5 , the chamber 14 passes through one side surface 12 b of the yarn joining nozzle 12 and the other side surface 12 c. That is, the penetrating direction of the cavity 14 is the opposing direction of the pair of side surfaces 12b and 12c, and is perpendicular to the direction in which the first yarn Y1 and the second yarn Y2 are inserted into the slit 13 . The cavity 14 forms a space through which the first yarn Y1 and the second yarn Y2 can pass. As shown in FIG. 4 , the chamber 14 has a circular shape viewed from the side faces 12b, 12c. In this embodiment, the chamber 14 is in the shape of a perfect circle. The diameter R1 of chamber 14 is

3.0 mm or more

4.0 mm or less.

0.8 mm以上

1.3 mm以下，更較佳為

1.0 mm以上

1.3 mm以下。於本實施形態中，噴射孔16a配置於通過腔室14之中心且與第1紗線Y1及第2紗線Y2相對於狹縫13之插入方向正交之直線上。於空氣流路16之上游側(與噴射孔16a相反一側)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 circulates the air supplied to the chamber 14 . The air flow path 16 has an injection hole 16 a opening to the chamber 14 . The injection hole 16 a communicates the air flow path 16 with the chamber 14 . Air is injected into the chamber 14 from the injection hole 16a. The injection hole 16a has a circular shape. In this embodiment, the injection hole 16a has a perfect circular shape. The diameter of injection hole 16a is preferably

0.8 mm or more

1.3 mm or less, more preferably

1.0 mm or more

1.3 mm or less. In the present embodiment, the injection hole 16a is arranged on a straight line passing through the center of the chamber 14 and perpendicular to the direction in which the first yarn Y1 and the second yarn Y2 are inserted into the slit 13 . 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 connection portion 18 .

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

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

The support portion 22 holds the clamping portion 23 . The support portion 22 is provided so as to be able to swing. Specifically, as shown in FIG. 2 , the shaft 21 is provided at the base end portion (one end portion in the longitudinal direction) of the support portion 22 . The shaft 21 is fixed to an unillustrated frame or the like. The support portion 22 swings around the shaft 21 . The supporting part 22 is at the second position P2 (refer to FIG. 6B ) close to the yarn joining unit 10 at the front end (the other end in the longitudinal direction) and the first position P1 ( 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 driving of a drive part (illustration omitted) such as a cylinder, for example. In the present embodiment, as described above, in the supporting portion 22, one end in the longitudinal direction on which the shaft 21 is provided is defined as the base end, and the other end in the longitudinal direction on the opposite side of the one end is defined as the distal end. department.

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

As shown in FIG. 5, the support part 22 has the support surface 27a which slidably supports the 2nd clamp member 26 (1st clamp member 24) mentioned later of the clamp part 23. As shown in FIG. The support surface 27a is provided at the central portion in the opposing direction of the pair of side surfaces 22c and 22d of the support portion 22 . The supporting surface 27a corresponds to the shape of the outer peripheral surface of the second clamping member 26 (first clamping member 24 ), and has a downwardly curved convex shape (semicircular shape). The support surface 27a extends along the longitudinal direction of the support portion 22 .

The supporting part 22 has a first abutting surface at a position where the supporting surface 27a is sandwiched along the facing direction of the pair of side surfaces 22c and 22d (the facing direction of the first holding mechanism 20 and the second holding mechanism 30). 27b, 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 on which the first yarn Y1 and the second yarn Y2 clamped by the clamping portion 23 can contact. The so-called being able to contact means that the first yarn Y1 and the second yarn Y2 clamped by the clamping part 23 are in contact with the first contact surface 27b, and that the first yarn Y1 and the second yarn Y1 are in contact with the first contact surface 27b. The case where Y2 is not in contact with the first contact surface 27b. The second contact surface 27c is a surface that contacts the first yarn Y1 and the second yarn Y2 clamped by the clamping portion 23 . As shown in FIG. 2, the 1st contact surface 27b and the 2nd contact surface 27c are provided in the position where the 1st clamping member 24 and the 2nd clamping member 26 contact at least.

As shown in FIG. 5, the 1st contact surface 27b is a flat surface continuous with one end (the end on the side surface 22c side) of the support surface 27a. The second contact surface 27c is a flat surface continuous with the other end (the end on the side surface 22d side) of the support surface 27a. In the supporting portion 22, viewed from the facing direction of the pair of main surfaces 22a, 22b, each of the second abutting surface 27c, the supporting surface 27a, and the first abutting surface 27b are provided in the order from the yarn joining portion 10 side. noodle. That is, the second contact surface 27c is disposed between the yarn joining unit 10 and the nip unit 23 . The second abutting surface 27c is located on the inner side in the opposing direction of the first clamping mechanism 20 and the second clamping mechanism 30 that sandwich the yarn splicing portion 10, and the first abutting surface 27b is located on the opposite side of the pair. on the outside in the direction.

The first contact surface 27b is substantially parallel to the main surfaces 22a, 22b. The 1st 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, 22b. The 2nd contact surface 27c is provided over the support surface 27a and the side surface 22d. The height positions of the first contact surface 27b and the second contact surface 27c in the opposing direction of the pair of main surfaces 22a, 22b of the support portion 22 are the same.

The second contact surface 27c and the side surface 22d form an angle of approximately 90°. The top of the corner formed by the second contact surface 27c and the side surface 22d is preferably surface ground. In this configuration, when the first yarn Y1 and the second yarn Y2 are separated from the above-mentioned top, damage to the first yarn Y1 and the second yarn Y2 can be suppressed.

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 1st clamping member 24 and the 2nd clamping member 26 are each formed of metal, such as SUS which has wear resistance, for example. The respective diameters of the first holding member 24 and the second holding member 26 may be appropriately set.

The 1st clamping member 24 and the 2nd clamping member 26 are arrange|positioned in the support part 22 so that each end surface may face. Specifically, the first clamping member 24 is disposed on the front end side of the support portion 22 , and the second clamping member 26 is disposed on the proximal end side of the support portion 22 compared with the first clamping member 24 . In the first clamping mechanism 20, the yarn is held by clamping the yarn between the end surface of the first clamping member 24 and the end surface of the second clamping member 26 in the clamping portion 23.

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

A part of the second clamping member 26 is accommodated in the support part 22 , and a part of the second clamping member 26 is exposed in the concave part 25 of the support part 22 . The second holding member 26 is provided movably in the support portion 22 . The second holding member 26 moves in the above-mentioned facing direction. The second clamping member 26 is biased toward the first clamping member 24 by a biasing 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 biasing member is applied to the second clamping member 26, and their end faces are abutted by the biasing force of the biasing member. catch.

The second holding member 26 moves in conjunction with the movement of the support portion 22 . The second clamping member 26 moves in the direction of separating from the first clamping member 24 by the movement of the support portion 22 from the second position P2 (see FIG. 6B ) to the first position P1 (see FIG. 6A ). Specifically, the second clamping member 26 is pushed in the direction opposite to the urging direction of the urging member by a cam mechanism not shown when the supporting portion 22 moves from the second position P2 to the first position P1. press in that direction. Thereby, a gap (space) is formed between the first holding member 24 and the second holding member 26 in the holding portion 23 . In addition, the movement of the second holding member 26 may not be linked with the movement of the support portion 22 .

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

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

The support portion 32 holds the clamping portion 33 . The support portion 32 is provided to be able to swing. Specifically, as shown in FIG. 2 , the shaft 31 is provided at the base end portion (one end portion in the longitudinal direction) of the support portion 32 . The shaft 31 is fixed to an unillustrated frame or the like. The support portion 32 swings around the shaft 31 . The supporting part 32 is close to the second position P2 (see FIG. 6B ) of the yarn joining unit 10 at the front end (the other end in the longitudinal direction), and is separated from the first yarn joining unit 10 at the front end and the second position P2. Move between positions P1 (see FIG. 6A ). That is, the first clamping mechanism 20 moves between the first position P1 and the second position P2. The supporting part 32 is moved by the driving of a driving part (not shown) such as a cylinder, for example. The drive unit may be the same as that of the drive support unit 22, or may be provided separately. In the present embodiment, as described above, in the support portion 32, one end in the longitudinal direction on which the shaft 31 is provided is defined as the proximal end, and the other end in the longitudinal direction opposite to the one end is defined as the distal end. .

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

As shown in FIG. 5, the support part 32 has the support surface 37a which slidably supports the 2nd clamping member 36 (1st clamping member 34) mentioned later of the clamping part 33. As shown in FIG. The support surface 37a is provided in the central part in the opposing direction of the pair of side surfaces 32c and 32d of the support part 32 . The support surface 37a corresponds to the shape of the outer peripheral surface of the second clamping member 36 (first clamping member 34 ), and has a downwardly curved convex shape (semicircular shape). The support surface 37a extends along the longitudinal direction of the support portion 32 .

The support part 32 has the 1st contact surface 37b and the 2nd contact surface 37c at the position which sandwiches the support surface 37a along the opposing direction of a pair of side surface 32c, 32d. The first contact surface 37b and the second contact surface 37c constitute the bottom surface of the concave portion 35 . The first contact surface 37b is a surface on which the first yarn Y1 and the second yarn Y2 clamped by the clamping portion 33 can contact. The second contact surface 37c is a surface that contacts the first yarn Y1 and the second yarn Y2 clamped by the clamping portion 33 . As shown in FIG. 2, the 1st contact surface 37b and the 2nd contact surface 37c are provided in the position where the 1st clamping member 34 and the 2nd clamping member 36 contact at least.

As shown in FIG. 5, the 1st contact surface 37b is a flat surface continuous with one end (the end on the side surface 32c side) of the support surface 37a. The second contact surface 37c is a flat surface continuous with the other end (the end on the side surface 32d side) of the supporting surface 37a. In the supporting portion 32, viewed from the facing direction of the pair of main surfaces 32a, 32b, each of the second abutting surface 37c, the supporting surface 37a, and the first abutting surface 37b are provided in the order from the yarn joining portion 10 side. noodle. That is, the second contact surface 37c is disposed between the yarn joining unit 10 and the nip unit 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 that sandwich the yarn joining portion 10 therebetween, and the first abutting surface 37b is located on the opposite side of the pair. on the outside in the direction.

The first contact surface 37b is substantially parallel to the main surfaces 32a, 32b. The 1st 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, 32b. The 2nd contact surface 37c is provided over the support surface 37a and the side surface 32d. The height positions of the first contact surface 37b and the second contact surface 37c in the opposing direction of the pair of main surfaces 32a, 32b of the support portion 32 are the same.

The second contact surface 37c and the side surface 32d form an angle of approximately 90°. The top of the corner formed by the second contact surface 37c and the side surface 32d is preferably surface ground.

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 metal such as SUS having wear resistance, for example. The respective diameters of the first clamping member 34 and the second clamping member 36 may be appropriately set.

The 1st clamping member 34 and the 2nd clamping member 36 are arrange|positioned in the support part 32 so that each end surface may face. Specifically, the first clamping member 34 is disposed on the front end side of the support portion 32 , and the second clamping member 36 is disposed on the proximal end side of the support portion 32 relative to the first clamping member 34 . In the second clamping mechanism 30, the yarn is held by clamping the yarn between the end surface of the first clamping member 34 and the end surface of the second clamping member 36 in the clamping portion 33.

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

A part of the second clamping member 36 is accommodated in the support part 32 , and a part of the second clamping member 36 is exposed in the concave part 35 of the support part 32 . The second holding member 36 is provided movably in the support portion 32 . The second holding member 36 moves in the above-mentioned facing direction. The second clamping member 36 is biased toward the first clamping member 34 by a biasing 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 biasing member is applied to the second clamping member 36, and their end faces are pressed against each other by the biasing force of the biasing member. catch.

The second holding member 36 moves in conjunction with the movement of the support portion 32 . The second clamping member 36 moves in the direction of separating from the first clamping member 34 by the movement of the support portion 32 from the second position P2 (see FIG. 6B ) to the first position P1 (see FIG. 6A ). Specifically, the second clamping member 36 is pushed in the direction opposite to the urging direction of the urging member by a cam mechanism not shown when the support portion 32 moves from the second position P2 to the first position P1. press in that direction. Thereby, a gap (space) is formed between the first holding member 34 and the second holding member 36 in the holding portion 33 . In addition, the movement of the second holding member 36 may not be linked with the movement of the support portion 32 .

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

First, as shown in FIG. 6A , the first yarn Y1 and the second yarn Y2 are set in the synthetic fiber yarn splicer 1 . Specifically, the first yarn Y1 and the second yarn Y2 are positioned in the cavity 14 through the slit 13 of the yarn joining part 10, and are arranged in the first clamping mechanism 20 and the second clamping mechanism 20 at the first position P1. agency30. More specifically, 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 abutting surface 27b and the second abutting surface 27c of the first clamping mechanism 20, and are also placed on the second clamping mechanism. 30 on the first abutting surface 37b and the second abutting surface 37c.

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

Specifically, in the first nipping mechanism 20 , the first yarn Y1 and the second yarn Y2 are nipped by the first nipping member 24 and the second nipping member 26 . In addition, in the second nipping mechanism 30 , the first yarn Y1 and the second yarn Y2 are nipped by the first nipping member 34 and the second nipping member 36 . Then, 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 in a loose state between the nipping portion 23 and the nipping portion 33 . Also, the first yarn Y1 and the second yarn Y2 are held in a state of being in contact with at least the second contact surface 27c and the second contact surface 37c.

Moreover, when the operation part 7 is operated, air is sprayed from the spray hole 16 a to the chamber 14 via the air flow path 16 . Thereby, the first yarn Y1 and the second yarn Y2 located in the chamber 14 are spliced by the action of the air, and an intertwined part is formed.

Then, the operation of the operation part 7 is released. Thereby, in the synthetic fiber yarn splicer 1, 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. Accompanied by this action, in the first clamping mechanism 20, the second clamping member 26 moves to the direction of separating from the first clamping member 24, and the first clamping member 24 and the second clamping member 26 move against the first clamping member 24 and the second clamping member 26. The clamping of the yarn Y1 and the second yarn Y2 is released. In the same manner in the second clamping mechanism 30, the second clamping member 36 moves in the direction of separating from the first clamping member 34, and the first clamping member 34 and the second clamping member 36 hold the first yarn Y1 and the first yarn Y1. The clamping of the second yarn Y2 is released. In addition, 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 can hold the first yarn Y1 and the second yarn Y2. Clamping is released. 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 can hold the first yarn Y1 and the second yarn Y2. Clamping is released. As described above, the splicing of the first yarn Y1 and the second yarn Y2 by the synthetic fiber yarn splicer 1 is completed. Thereby, the first yarn Y1 and the second yarn Y2 become one yarn.

0.8 mm之情形時，向腔室14內噴射之空氣之力較小，因此空氣不會對第1紗線Y1及第2紗線Y2適當地起作用，而於腔室14內第1紗線Y1及第2紗線Y2不會被適當地擺動，因此難以形成絡合部。當噴射孔16a之直徑R2變得大於

1.3 mm時，於較細、長絲數量較少之紗線之情形時，空氣有可能對第1紗線Y1及第2紗線Y2過度地作用，難以適當地形成絡合部。As described above, in the splicer 1 for synthetic fiber yarns according to this embodiment, the first yarn Y1 and the second yarn Y2 held by the first clamping mechanism 20 and the second clamping mechanism 30 are moved by the first clamping mechanism 20 and the second clamping mechanism 30. The position clamped by the clamping mechanism 20 and the second clamping mechanism 30 is used as a fixed point and swings in the chamber 14 to form an intertwined portion. The diameter R2 of the injection hole 16a is less than

In the case of 0.8 mm, the force of the air injected into the chamber 14 is small, so the air will not properly act on the first yarn Y1 and the second yarn Y2, and the first yarn in the chamber 14 Since Y1 and the second yarn Y2 are not properly wobbled, it is difficult to form an entangled portion. When the diameter R2 of the injection hole 16a becomes larger than

When the thickness is 1.3 mm, in the case of a thinner yarn with a small number of filaments, air may excessively act on the first yarn Y1 and the second yarn Y2, making it difficult to properly form the entangled portion.

0.8 mm以上

1.3 mm以下。藉此，於合成纖維紗用接合器1中，即使係較細、長絲數量較少之紗線，亦能夠使空氣對第1紗線Y1及第2紗線Y2適當地起作用，於腔室14內第1紗線Y1及第2紗線Y2被適當地擺動，因此能夠適當地形成絡合部。藉此，於合成纖維紗用接合器1中，能夠對較細、長絲數量較少之紗線形成絡合部，並且能夠抑制絡合部之拉伸伸長率之降低。In the synthetic fiber yarn splicer 1 of this embodiment, the diameter R2 of the injection hole 16a is

0.8 mm or more

1.3 mm or less. Thereby, in the splicer 1 for synthetic fiber yarns, even if the yarns are relatively thin and have a small number of filaments, the air can be properly acted on the first yarn Y1 and the second yarn Y2, and the air in the cavity The first yarn Y1 and the second yarn Y2 are appropriately wobbled in the chamber 14, so that the entangled portion can be appropriately formed. Thereby, in the splicer 1 for synthetic fiber yarns, it is possible to form an entangled portion for a thin yarn with a small number of filaments, and it is possible to suppress a decrease in the tensile elongation of the entangled portion.

3.0 mm以上

4.0 mm以下。當腔室14之直徑R1小於

3.0 mm時，第1紗線Y1及第2紗線Y2於腔室14內被擺動時，容易與腔室14之內周面接觸，於腔室14內紗線難以撚回。因此，有可能無法適當地形成絡合部。當腔室14之直徑R1大於

4.0 mm時，自噴射孔16a噴射出之空氣會於腔室14內分散，因此空氣對第1紗線Y1及第2紗線Y2難以適當地作用，難以形成絡合部。於合成纖維紗用接合器1中，腔室14之直徑R1為

3.0 mm以上

4.0 mm以下，因此能夠抑制與腔室14之內周面接觸導致之影響，並且能夠使空氣對第1紗線Y1及第2紗線Y2適當地起作用。藉此，於合成纖維紗用接合器1中，能夠對較細、長絲數量較少之紗線更可靠地形成絡合部，並且能夠進一步抑制絡合部之拉伸伸長率之降低。In the synthetic fiber yarn splicer 1 of this embodiment, the chamber 14 has a circular shape as viewed from the direction in which the chamber 14 penetrates. The diameter R1 of chamber 14 is

3.0 mm or more

4.0 mm or less. When the diameter R1 of the chamber 14 is less than

When the thickness is 3.0 mm, the first yarn Y1 and the second yarn Y2 are easily in contact with the inner peripheral surface of the chamber 14 when they are swung in the chamber 14, and the yarns are difficult to twist in the chamber 14. Therefore, there is a possibility that a complex part cannot be formed appropriately. When the diameter R1 of the chamber 14 is greater than

When the thickness is 4.0 mm, the air ejected from the ejection hole 16a will disperse in the chamber 14, so it is difficult for the air to properly act on the first yarn Y1 and the second yarn Y2, and it is difficult to form an intertwined portion. In the splicer 1 for synthetic fiber yarn, the diameter R1 of the chamber 14 is

3.0 mm or more

Therefore, the influence of contact with the inner peripheral surface of the chamber 14 can be suppressed, and the air can properly act on the first yarn Y1 and the second yarn Y2. Thereby, in the splicer 1 for synthetic fiber yarns, it is possible to more reliably form the entangled portion on a thin yarn having a small number of filaments, and further suppress a decrease in the tensile elongation of the entangled portion.

The synthetic fiber yarn splicer 1 of this embodiment splices the first yarn Y1 and the second yarn Y2 whose thickness is 55 dtex or less and the number of filaments is 10f or less. A yarn having a thickness of 55 dtex or less and a number of filaments of 10f or less is difficult to form an entangled part. The synthetic fiber yarn splicer 1 having the above-mentioned configuration can form an intertwined portion even if the yarn has a thickness of 55 dtex or less and a number of filaments of 10f or less.

7A and 8A show the stretching of the entangled portion when the combination of the diameter R1 of the chamber 14 and the diameter R2 of the injection hole 16a is changed to form the entangled portion in the synthetic fiber yarn splicer 1 of this embodiment. The graph of the measurement results of elongation. The measurement results shown in Fig. 7A and Fig. 8A are the average value of 7 measurement results in which no yarn detachment occurred in the entanglement section after the tension test was performed after the entanglement section was formed. Also, when the yarn detachment was confirmed three times, the measurement was terminated at that point. Therefore, the measurement results when yarn detachment occurs three times are the results of one measurement or the average value of multiple measurement results.

In the measurement of tensile elongation, TENSORAPID4 (trade name) manufactured by USTER was used. 7A and 8A show the results when the pressure of the air injected from the injection hole 16a is set to 7kgf/cm ² . The yarn is a pre-drawn yarn (POY: Pre Oriented Yarn). In the results shown in FIG. 7A and FIG. 8A , "x" indicates the case where no complex part was formed.

The yarn to be measured in Fig. 7A is 40 dtex-10f. The tensile elongation of the yarn not forming the entangled portion (raw yarn) used in the measurement of FIG. 7A was 64.6 (%) (hereinafter referred to as "raw yarn elongation A"). The yarn to be measured in Fig. 8A is 20 dtex-5f. The tensile elongation of the yarn not forming the entangled portion used in the measurement of FIG. 8A was 68.6 (%) (hereinafter referred to as "raw yarn elongation B").

0.8 mm、

1.0 mm以及

1.3 mm之情形時，與噴射孔16a之直徑R2為

0.6 mm、

1.6 mm以及

1.8 mm相較，拉伸伸長率相對於原紗伸長率A、B各自之降低量(%)比較小。As shown in FIGS. 7A and 8A, it can be confirmed that the diameter R2 of the injection hole 16a is

0.8 mm,

1.0 mm and

In the case of 1.3 mm, the diameter R2 of the injection hole 16a is

0.6 mm,

1.6 mm and

Compared with 1.8 mm, the reduction (%) of tensile elongation relative to the original yarn elongation A and B is relatively small.

2.5 mm之情形時，第1紗線Y1與第2紗線Y2不纏繞，而未形成絡合部。於腔室14之直徑R1為

3.0 mm、

3.5 mm以及

4.0 mm之情形、以及直徑R1為

4.5 mm、

5.5 mm以及

6.0 mm之情形時，於噴射孔16a之直徑R2為

0.8 mm、

1.0 mm以及

1.3 mm之情形時，於拉伸伸長率相對於原紗伸長率A、B各自之降低量(%)中未確認到較大之差。於噴射孔16a之直徑R2為

1.0 mm、腔室14之直徑R1為

3.5 mm之情形時，確認到拉伸伸長率相對於原紗伸長率A、B各自之降低量(%)明顯較小。The diameter R1 of the chamber 14 is

In the case of 2.5 mm, the first yarn Y1 and the second yarn Y2 are not entangled, and no intertwined portion is formed. The diameter R1 of the chamber 14 is

3.0 mm,

3.5 mm and

In the case of 4.0 mm, and the diameter R1 is

4.5 mm,

5.5 mm and

In the case of 6.0 mm, the diameter R2 of the injection hole 16a is

0.8 mm,

1.0 mm and

In the case of 1.3 mm, no large difference was confirmed in the decrease (%) of the tensile elongation relative to the original yarn elongation A and B respectively. The diameter R2 of the injection hole 16a is

1.0 mm, the diameter R1 of the chamber 14 is

In the case of 3.5 mm, it was confirmed that the decrease (%) of the tensile elongation relative to the original yarn elongation A and B is significantly small.

9A and 9B show the CV value (dividing the standard deviation calculated from a plurality of measurement results of the tensile elongation by the tensile elongation) when the diameter R1 of the chamber 14 and the diameter R2 of the injection hole 16a are combined. The value obtained from the average value). Figure 9A shows the results for the 40 dtex-10f yarn. Figure 9B shows the results for the 20 dtex-5f yarn.

3.5 mm、噴射孔16a之直徑R2為

1.0 mm之情形時，拉伸伸長率之平均值為59.7(%)，CV值為4.5(%)。於腔室14之直徑R1為

4.0 mm、噴射孔16a之直徑R2為

1.3 mm之情形時，拉伸伸長率之平均值為58.2(%)，CV值為5.7(%)。As shown in Fig. 9A, the elongation A of the original yarn was 64.6(%), and the CV value of the original yarn was 3.4%. The diameter R1 of the chamber 14 is

3.5 mm, the diameter R2 of the injection hole 16a is

In the case of 1.0 mm, the average value of tensile elongation is 59.7(%), and the CV value is 4.5(%). The diameter R1 of the chamber 14 is

4.0 mm, the diameter R2 of the injection hole 16a is

In the case of 1.3 mm, the average value of tensile elongation is 58.2 (%), and the CV value is 5.7 (%).

6.0 mm、噴射孔16a之直徑R2為

0.8 mm之情形時，拉伸伸長率之平均值為58.2(%)，CV值為15.7(%)。於腔室14之直徑R1為

6.0 mm、噴射孔16a之直徑R2為

1.3 mm之情形時，拉伸伸長率之平均值為58.9(%)，CV值為10.5(%)。如此，於腔室14之直徑R1為

3.5 mm、

4.0 mm以及

6.0 mm時，拉伸伸長率之平均值之差不大，但CV值相差較大。於腔室14之直徑R1為

3.5 mm以及

4.0 mm之情形時，與腔室14之直徑R1為

6.0 mm之情形相較，CV值均較小。即，拉伸伸長率之降低量(%)之偏差均較小。因此，於噴射孔16a之直徑R2為

0.8 mm以上

1.3 mm以下、腔室14之直徑R1為

3.0 mm以上

4.0 mm以下之情形時，能夠確認拉伸伸長率相對於原紗伸長率之降低量(%)較低，且能夠抑制拉伸伸長率之降低量(%)之偏差。藉此，於合成纖維紗用接合器1中能夠確認，於40 dtex-10f之紗線中能夠穩定地形成絡合部。The diameter R1 of the chamber 14 is

6.0 mm, the diameter R2 of the injection hole 16a is

In the case of 0.8 mm, the average value of tensile elongation is 58.2 (%), and the CV value is 15.7 (%). The diameter R1 of the chamber 14 is

6.0 mm, the diameter R2 of the injection hole 16a is

In the case of 1.3 mm, the average value of tensile elongation is 58.9 (%), and the CV value is 10.5 (%). Thus, the diameter R1 of the chamber 14 is

3.5 mm,

4.0 mm and

At 6.0 mm, the average value of tensile elongation has little difference, but the CV value has a large difference. The diameter R1 of the chamber 14 is

3.5 mm and

In the case of 4.0 mm, the diameter R1 of the chamber 14 is

Compared with the case of 6.0 mm, the CV values are smaller. That is, the variations in the amount of decrease (%) in tensile elongation were small. Therefore, the diameter R2 of the injection hole 16a is

0.8 mm or more

Below 1.3 mm, the diameter R1 of the chamber 14 is

3.0 mm or more

In the case of 4.0 mm or less, it can be confirmed that the decrease (%) of tensile elongation relative to the original yarn elongation is low, and the variation of decrease (%) of tensile elongation can be suppressed. Thus, in the splicer 1 for synthetic fiber yarn, it was confirmed that the entangled portion can be stably formed in the yarn of 40 dtex-10f.

3.5 mm、噴射孔16a之直徑R2為

1.0 mm之情形時，拉伸伸長率之平均值為57.9(%)，CV值為6.8(%)。於腔室14之直徑R1為

4.0 mm、噴射孔16a之直徑R2為

1.3 mm之情形時，拉伸伸長率之平均值為50.8(%)，CV值為11.0(%)。As shown in Fig. 9B, the elongation B of the original yarn was 68.6 (%), and the CV value of the original yarn was 2.5%. The diameter R1 of the chamber 14 is

3.5 mm, the diameter R2 of the injection hole 16a is

In the case of 1.0 mm, the average value of tensile elongation is 57.9(%), and the CV value is 6.8(%). The diameter R1 of the chamber 14 is

4.0 mm, the diameter R2 of the injection hole 16a is

In the case of 1.3 mm, the average value of tensile elongation is 50.8(%), and the CV value is 11.0(%).

6.0 mm、噴射孔16a之直徑R2為

0.8 mm之情形時，拉伸伸長率之平均值為56.9(%)，CV值為11.3(%)。於腔室14之直徑R1為

6.0 mm、噴射孔16a之直徑R2為

1.3 mm之情形時，拉伸伸長率之平均值為57.7(%)，CV值為13.6(%)。如此，於腔室14之直徑R1為

3.5 mm、

4.0 mm以及

6.0 mm時，拉伸伸長率之平均值之差不大，但CV值不同。於腔室14之直徑R1為

3.5 mm以及

4.0 mm之情形時，與腔室14之直徑R1為

6.0 mm之情形相較，CV值均較小。即，拉伸伸長率之降低量(%)之偏差均較小。藉此，於合成纖維紗用接合器1中能夠確認，於20 dtex-5f之紗線中能夠穩定地形成絡合部。The diameter R1 of the chamber 14 is

6.0 mm, the diameter R2 of the injection hole 16a is

In the case of 0.8 mm, the average value of tensile elongation is 56.9 (%), and the CV value is 11.3 (%). The diameter R1 of the chamber 14 is

6.0 mm, the diameter R2 of the injection hole 16a is

In the case of 1.3 mm, the average value of tensile elongation is 57.7(%), and the CV value is 13.6(%). Thus, the diameter R1 of the chamber 14 is

3.5 mm,

4.0 mm and

At 6.0 mm, the average values of tensile elongation have little difference, but the CV values are different. The diameter R1 of the chamber 14 is

3.5 mm and

In the case of 4.0 mm, the diameter R1 of the chamber 14 is

Compared with the case of 6.0 mm, the CV values are smaller. That is, the variations in the amount of decrease (%) in tensile elongation were small. Thus, in the splicer 1 for synthetic fiber yarn, it was confirmed that the entangled portion can be stably formed in the yarn of 20 dtex-5f.

Figure 7B and Figure 8B show the number of yarn detachments in the tension test. In the tension test, after forming the entangled portion of the first yarn Y1 and the second yarn Y2 using the synthetic fiber yarn splicer 1 , the entangled portion was pulled from both sides with a specific force. When tension is applied to the first yarn Y1 and the second yarn Y2, the entangled portion is untied and the bond between the first yarn Y1 and the second yarn Y2 cannot be maintained, and it is judged that the yarn is separated.

0.8 mm以上

1.3 mm以下、腔室14之直徑R1為

3.0 mm以上

4.0 mm以下之情形時，於40 dtex-10f之紗線中亦能夠穩定地形成絡合部。As shown in Fig. 7B, in the yarn of 40 dtex-10f, no yarn detachment occurred. Therefore, it can be confirmed that even if the diameter R2 of the injection hole 16a is

0.8 mm or more

Below 1.3 mm, the diameter R1 of the chamber 14 is

3.0 mm or more

In the case of 4.0 mm or less, the entangled part can be stably formed in the yarn of 40 dtex-10f.

0.6 mm、

1.6 mm以及

1.8 mm之情形時，紗線脫離產生比較多。於腔室14之直徑R1為

3.5 mm、噴射孔16a之直徑R2為

0.8 mm以及

1.3 mm之情形時，亦產生1次紗線脫離。就此而言，長絲會根據溫度以及濕度等條件而解開方式變化。因此，產生1次紗線脫離之原因可以認為，係形成絡合部時之環境產生影響。根據以上情形，能夠確認，於噴射孔16a之直徑R2為

0.8 mm以上

1.3 mm以下之情形時，紗線脫離比較少。As shown in Figure 8B, the diameter R2 of the injection hole 16a is

0.6 mm,

1.6 mm and

In the case of 1.8 mm, yarn detachment occurs more frequently. The diameter R1 of the chamber 14 is

3.5 mm, the diameter R2 of the injection hole 16a is

0.8 mm and

In the case of 1.3 mm, yarn separation also occurs once. In this regard, the way the filaments unravel varies depending on conditions such as temperature and humidity. Therefore, the cause of the primary yarn detachment can be considered to be the influence of the environment at the time of forming the entangled part. According to the above circumstances, it can be confirmed that the diameter R2 of the injection hole 16a is

0.8 mm or more

When the thickness is less than 1.3 mm, the yarn detachment is relatively small.

0.8 mm以上

1.3 mm以下、腔室14之直徑R1為

3.0 mm以上

4.0 mm以下之情形時，與其他組合相較，紗線脫離之次數比較少，CV值亦較小。因此，能夠確認，於噴射孔16a之直徑R2為

0.8 mm以上

1.3 mm以下、腔室14之直徑R1為

3.0 mm以上

4.0 mm以下之情形時，於20 dtex-5f之紗線中容易穩定地形成絡合部。於噴射孔16a之直徑R2為

1.0 mm、腔室14之直徑R1為

3.5 mm之情形時，未確認到紗線脫離。因此，能夠確認，於噴射孔16a之直徑R2為

1.0 mm、腔室14之直徑R1為

3.5 mm之情形時，於20 dtex-5f之紗線中能夠特別穩定地形成絡合部。The diameter R2 of the injection hole 16a is

0.8 mm or more

Below 1.3 mm, the diameter R1 of the chamber 14 is

3.0 mm or more

When it is less than 4.0 mm, compared with other combinations, the number of times of yarn detachment is relatively small, and the CV value is also small. Therefore, it can be confirmed that the diameter R2 of the injection hole 16a is

0.8 mm or more

Below 1.3 mm, the diameter R1 of the chamber 14 is

3.0 mm or more

In the case of 4.0 mm or less, it is easy to stably form the entangled part in the yarn of 20 dtex-5f. The diameter R2 of the injection hole 16a is

1.0 mm, the diameter R1 of the chamber 14 is

In the case of 3.5 mm, yarn detachment was not confirmed. Therefore, it can be confirmed that the diameter R2 of the injection hole 16a is

1.0 mm, the diameter R1 of the chamber 14 is

In the case of 3.5 mm, the entangled part can be formed particularly stably in the yarn of 20 dtex-5f.

As mentioned above, although embodiment of this invention was described, this invention is not necessarily limited to the said embodiment, Various changes are possible in the range which does not deviate from the summary.

In the above-mentioned embodiment, as the shape of the main body 3, the form shown in FIG. 1 was demonstrated as an example. However, the shape of the main body 3 is not limited to the form 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 way of shape is illustrated as an example. However, the first clamping member and the second clamping member are not limited to columnar shapes as long as they are in a shape capable of clamping the yarn, and can have various shapes (for example, prismatic shape, etc.).

In the above 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 support parts 22 and 32 can also move in the direction of mutual approach and the direction of mutual separation in the state parallel to each other, for example.

In the above embodiment, after the first yarn Y1 and the second yarn Y2 are arranged on the first clamping mechanism 20 and the second clamping mechanism 30 at the first position P1, the first clamping mechanism 20 And the mode in which the second clamping mechanism 30 moves from the first position P1 to the second position P2 and injects air from the injection hole 16a to the chamber 14 to form the entangled portion has been described as an example. However, the method of forming the entangled portion using the synthetic fiber yarn splicer 1 is not limited to this.

For example, after disposing the first yarn Y1 and the second yarn Y2 on the first clamping mechanism 20 and the second clamping mechanism 30 at the second position P2, the first clamping mechanism 20 and the second clamping mechanism 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, from the spray hole 16a to the The chamber 14 injects air to form the entanglement.

In the above-described embodiment, the embodiment in which the synthetic fiber yarn splicer 1 is a manual splicer that is held 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‧‧‧Synthetic yarn splicer 3‧‧‧Ontology 3a‧‧‧The first body part 3b‧‧‧Second body part 5‧‧‧yarn splicing mechanism 7‧‧‧operation department 9‧‧‧connection part 10‧‧‧yarn joining department 12‧‧‧yarn splicing nozzle 12a‧‧‧upper surface 12b‧‧‧side 12c‧‧‧side 14‧‧‧chamber (access) 15‧‧‧Inclined surface 16‧‧‧Air flow path 16a‧‧‧jet hole 18‧‧‧connection part 20‧‧‧The first clamping mechanism 21‧‧‧axis 22‧‧‧Support Department 22a‧‧‧main face 22b‧‧‧main face 22c‧‧‧side 22d‧‧‧side 23‧‧‧Clamping part 24‧‧‧The first clamping member 25‧‧‧Concave 26‧‧‧Second clamping member 27a‧‧‧support surface 27b‧‧‧The first contact surface 27c‧‧‧The second contact surface 30‧‧‧The second clamping mechanism 31‧‧‧axis 32‧‧‧Support Department 32a‧‧‧main face 32b‧‧‧main face 32c‧‧‧side 32d‧‧‧side 33‧‧‧Clamping part 34‧‧‧The first clamping member 35‧‧‧Concave 37a‧‧‧support surface 37b‧‧‧The first contact surface 37c‧‧‧The second contact surface P1‧‧‧1st position P2‧‧‧2nd position R1‧‧‧diameter R2‧‧‧diameter Y1‧‧‧1st yarn (yarn of one party) Y2‧‧‧2nd yarn (yarn of the other party)

Fig. 1 is a perspective view showing a splicer for synthetic fiber yarns according to an embodiment. Figure 2 is a view of the yarn splicing mechanism viewed from above. Fig. 3 is a side view of the yarn joining mechanism. Fig. 4 is a sectional view of the yarn joint. Fig. 5 is a cross-sectional view along 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 measurement results. Fig. 7B is a graph showing measurement results. Fig. 8A is a graph showing measurement results. Fig. 8B is a graph showing measurement results. Fig. 9A is a graph showing measurement results. Fig. 9B is a graph showing measurement results.

5‧‧‧yarn splicing mechanism

10‧‧‧yarn joining department

12‧‧‧yarn splicing nozzle

12a‧‧‧upper surface

12b‧‧‧side

12c‧‧‧side

16a‧‧‧jet hole

20‧‧‧The first clamping mechanism

22‧‧‧Support Department

22a‧‧‧main face

22b‧‧‧main face

22c‧‧‧side

22d‧‧‧side

23‧‧‧Clamping part

24‧‧‧The first clamping member

25‧‧‧Concave

27a‧‧‧support surface

27b‧‧‧The first contact surface

27c‧‧‧The second contact surface

30‧‧‧The second clamping mechanism

32‧‧‧Support Department

32a‧‧‧main face

32b‧‧‧main face

32c‧‧‧side

32d‧‧‧side

33‧‧‧Clamping part

34‧‧‧The first clamping member

35‧‧‧Concave

37a‧‧‧support surface

37b‧‧‧The first contact surface

37c‧‧‧The second contact surface

R1‧‧‧diameter

R2‧‧‧diameter

Claims (3)

A splicer for synthetic fiber yarn, which splices one yarn made of synthetic fibers and the other yarn, comprising: a yarn splicing part capable of forming the one yarn and the other yarn through which the yarn can pass The passage of the space in the above-mentioned passage, and the injection hole opening to the above-mentioned passage and injecting fluid; and a pair of clamping mechanisms, which are arranged at the position of the above-mentioned passage of the above-mentioned yarn-joining part, for the above-mentioned one of the yarns passing through the above-mentioned space and the above-mentioned Each of the yarns on the other side is clamped, and each of the pair of clamping mechanisms has a clamping portion for clamping each of the yarns on the one side and the yarns on the other side, and the above-mentioned injection holes are circular. shape, the diameter of the above injection hole is

0.8mm or more

1.3mm or less, the above-mentioned passage is circular when viewed from the through-through direction of the passage, and the diameter of the above-mentioned passage is

3.0mm or more

Below 4.0mm. A splicer for synthetic fiber yarns as claimed in claim 1, wherein the diameter of the injection hole is

1.0mm or more

Below 1.3mm. The synthetic fiber yarn splicer according to claim 1 or 2, wherein the synthetic fiber yarn splicer performs splicing of the above-mentioned one yarn and the above-mentioned other yarn whose thickness is 55 dtex or less and the number of filaments is 10f or less. yarn.

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