JP2000045139A - Snail wire - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a yarn above a snail wire from catching a spun yarn at an adjacent spindle and causing the breakage of both yarns when yarn breakage occurs between a snail wire and a front roller. SOLUTION: A snail wire 1 has a volute portion 1b forming nearly round guiding hole 2 at the top of an attaching portion 1a the base end of which is formed so as to have a U shape. The hole 2 guides a yarn between a front roller and a traveler. A slub catcher 3 is protrusively fixed in a predetermined rear part of the peripheral part of the portion 1b corresponding to a region 2a of the hole 2 contacted with a yarn in a state extending nearly in the direction of the normal. The attaching portion 1a is formed in a state that it is located at the position biased from a line L1 extending along the longitudinal direction of the wire 1 while passing through the center of the hole 2. The portion 1b is formed so as to place a coiling-starting position S in the side opposite to the base end of the slub catcher 3 with respect to the line L1. The slub catcher 3 is fixed to the part 1b by welding.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a snell wire used for a ring spinning machine, a ring twisting machine and the like.

[0002]

2. Description of the Related Art In a ring spinning machine, a ring twisting machine or the like, as shown in FIG. 13, a yarn Y from a front roller 61 to a traveler 62 is guided by a snell wire 64 attached to a wrappet 63 and a snell wire 6
The bobbin B is wound around the bobbin B while turning around the yarn introduction hole 4 as the center of ballooning (balloon). Snell wire 64
As shown in FIG. 14, one wire is formed by bending a wire, and an attachment portion 64a to the lappet 63 is provided with a yarn introduction hole 65.
Are formed so as to be offset with respect to a straight line extending through the center of the snell wire 64 in the longitudinal direction. The slab catcher 66 is provided at the tip of the snell wire 64. The slab catcher 66 has a function of hooking and cutting the yarn Y having an increased ballooning when an abnormality such as a slab or a thick yarn occurs in the spun yarn.

As shown in FIG. 12, a spiral portion 64b is formed at the tip of a mounting portion 64a fixed to the lappet 63 on the snell wire 64, and a yarn guide hole 65 is formed at the center of the spiral portion 64b. The catcher 66 is the spiral part 6
Some are formed integrally so as to extend obliquely rearward from the outer periphery of 4b.

[0004]

SUMMARY OF THE INVENTION Slab catcher 66
It is only necessary that the yarn Y having a large ballooning can be hooked, and the angle with respect to the horizontal plane needs to be within a predetermined range. However, no particular consideration is given to the mounting position. In the conventional snell wire 64, when the slab catcher 66 passes through the center of the yarn introduction hole 65 and is disposed behind the straight line L parallel to the support rod 67 of the lappet 63 as shown in FIG. And the slab catcher 66 formed an angle θ2 of 45 ° at the maximum.

The slab catcher 66 has a function of catching spun yarn when a slab or a thick yarn is generated and cutting the yarn between the slab catcher 66 and the traveler 62. It also has a function of preventing a phenomenon in which a thread break spreads to an adjacent weight when a thread break occurs, that is, a so-called break. However, in the conventional snell wire 64, when the thread break occurs on the front roller 61 side with respect to the snell wire 64, the thread break often occurs. In particular, the front roller 61 and the yarn introduction hole 64
When the distance in the front-rear direction is large, the yarn Y upstream of the yarn introduction hole 64 is easily affected by the airflow behind the ring rail caused by the action of the accompanying airflow accompanying the rotation of the bobbin B, and the breakage occurs. Easy to happen.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and has as its object that when a yarn break occurs between a snell wire and a front roller, the yarn above the snell wire is spun out from an adjacent weight. An object of the present invention is to provide a snell wire that can prevent the occurrence of a cut even when it is entangled in a yarn.

[0007]

According to the first aspect of the present invention, there is provided a yarn guiding hole in a contact area of a yarn with a yarn guiding hole for guiding a yarn from a front roller to a traveler during spinning. And a slab catcher is provided in a rearward predetermined range corresponding to the contact range, wherein the angle formed by a straight line passing through the center of the snel wire and extending in the longitudinal direction of the snel wire is less than ± 45 °.

According to the second aspect of the present invention, in the first aspect, the attachment portion to the lappet is formed so as to be offset from a straight line passing through the center of the yarn introduction hole and extending in the longitudinal direction of the snell wire. The slab catcher is formed so that the winding start position of the spiral portion is located on the opposite side to the base end of the slab catcher with respect to the straight line.

According to a third aspect of the present invention, in the first or second aspect of the invention, the predetermined range is a downstream side in a rotational direction of a straight line passing through the center of the yarn introduction hole and extending in the longitudinal direction of the snell wire. 0 ° to 40 °.

According to a fourth aspect of the present invention, in the first or second aspect of the present invention, the predetermined range is located downstream of a straight line passing through the center of the yarn introduction hole and extending in the longitudinal direction of the snell wire. 20 ° to 30 °.

According to a fifth aspect of the present invention, in the first or second aspect, a plurality of slab catchers are provided within the predetermined range. The snell wire according to any one of the first to fifth aspects of the present invention is used by being fixed to a wrappet, and a yarn sent from a front roller during spinning is guided to a traveler through a yarn introduction hole. The yarn is wound around the bobbin by the action of the traveler rotating on the ring while forming a balloon with the yarn guide hole at the upper center. When a yarn break occurs above the snell wire, the yarn above the snell wire falls under a force based on the balloon below the snell wire. During the rotation of the spindle, there is an airflow in one direction along the longitudinal direction of the machine at a position closer to the center of the machine than the spindle row.

When the direction of the force acting on the yarn above the snell wire when the yarn break occurs is the same as the direction of the air flow, the position where the yarn end rides on the air flow and becomes entangled with the spun yarn of the adjacent weight It is easy to move up. The direction of the force is the same as the direction of the airflow when the balloon moves behind the snell wire, that is, toward the center of the machine. Since the slab catcher is provided in a predetermined range behind the thread corresponding to the contact area of the thread with the thread guide hole of the snell wire,
Even if a yarn break occurs at a position above the snell wire and at a position where the yarn end easily moves to a position tangled with the spun yarn of the adjacent weight by riding on the airflow, the yarn is caught by the slab catcher at an early stage.
As a result, the yarn end is prevented from being entangled with the spun yarn of the adjacent weight.

According to a second aspect of the present invention, in the first aspect, the attachment portion to the lappet is formed so as to be offset from a straight line passing through the center of the yarn introduction hole and extending in the longitudinal direction of the snell wire. It becomes easy to provide the slab catcher at a desired position with respect to the snell wire.

According to a third aspect of the present invention, in the first or second aspect of the invention, when the number of slab catchers is one, a straight line extending through the center of the yarn introduction hole and extending in the longitudinal direction of the snell wire. It is easier to catch the yarn when the yarn breaks, compared to the case where it is provided on the upstream side in the rotation direction.

According to a fourth aspect of the present invention, in the first or second aspect of the present invention, when the number of slab catchers is one, the number of slab catchers at the time of yarn breakage is smaller than when the slab catchers are provided in other ranges. It is easy to catch the yarn before it becomes entangled with the adjacent weight.

According to a fifth aspect of the present invention, in the first or second aspect of the present invention, since a plurality of slab catchers are provided within the predetermined range, the yarn ends ride on the airflow to be adjacent to the slab catchers. When a yarn break occurs at a position where it easily moves to the position where it is entangled with the spun yarn of the weight, the yarn is immediately caught by one of the slab catchers, and the effect of preventing the yarn end from being entangled with the spun yarn of the adjacent weight. Is improved.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an embodiment in which the present invention is embodied in a snell wire suitable for spinning a Z-twisted yarn.
This will be described with reference to FIG. As shown in FIGS. 1 (a) and 1 (b), the snell wire 1 is formed by bending a tapered wire, and a substantially circular conductor is attached to the distal end of a mounting portion 1a whose base end is formed in a U-shape. A spiral part 1b that forms the yarn hole 2 is provided. The yarn introduction hole 2 plays a role of guiding the yarn from the front roller to the traveler during spinning. A slab catcher 3 is provided on the outer periphery of the spiral part 1b so as to extend substantially in the normal direction within a predetermined rear area corresponding to the contact area 2a of the yarn with the yarn introduction hole 2.

The attachment portion 1a is formed so as to be offset from a straight line L1 passing through the center of the yarn introduction hole 2 and extending in the longitudinal direction of the snell wire 1, and the spiral portion 1b has a winding start position S
Is formed on the opposite side of the base end of the slab catcher 3 with respect to the straight line L1. Slab Catcher 3
Are fixed to the spiral part 1b by welding. FIG. 1 (c)
As shown in the figure, the angle between the slab catcher 3 and the vertical line when the snell wire 1 is arranged horizontally is approximately 60 °.
It is formed so that it becomes.

Although the contact range 2a varies depending on the spinning conditions, as shown in FIG. 1B, the angle θ1 formed with the straight line L1 passing through the center of the yarn introduction hole 2 and extending in the longitudinal direction of the snell wire 1 is ± 30. ４０40 °. In addition, FIG.
The angle measured in the counterclockwise direction in (b) is defined as a negative angle θ1, and the angle measured in the clockwise direction is defined as a positive angle θ1. The term “within the predetermined rear range corresponding to the contact range 2a” means that it is inside the straight line L2 that determines the angle θ1. In this embodiment, the slab catcher 3
Is formed so that the angle θ formed with the straight line L1 is 20 °.

The snell wire 1 constructed as described above
Is used by being attached to the tip of the lappet 4, as shown in FIGS. A support bracket 6 fixedly rotatable with respect to the support rod 5;
And a lappet body 7 to which the snell wire 1 is attached. The lappet body 7 is rotatably supported on a support bracket 6 by a shaft 8. A base end of a mounting portion 1a of the snell wire 1 bent in a U-shape is fixed to a front lower surface of the wrappet body 7 via a nut 9 and a screw 10. The snell wire 1 can be moved in the front-rear direction (the left-right direction in FIG. 2) by loosening the tightening of the nut 9 and the screw 10.

Next, the location of the lappet 4 in the ring spinning machine will be described with reference to FIG. A support arm 12 is fixed to an upper end of the pillar 11, and a ring rail 13 is fixed to an upper surface of the support arm 12. A ring 15 for guiding the traveler 14 is fixed to a fitting hole formed at a predetermined pitch in the ring rail 13. The rear side of the ring rail 13 is bent upward at a right angle, and the
Are formed. A balloon control ring (anti-node ring) 16 is fixed to the mounting portion 13a by a screw 19 so as to correspond to each spindle 18 supported on a spindle rail 17.

Pillars 20 are arranged at predetermined intervals behind the ring rail 13, and the support rods 5 are provided above the pillars 20.
Are supported so as to extend in parallel with the spindle rail 7. The lappet 4 is fixed to the support rod 5 at a predetermined interval so that the yarn introduction hole 2 of the snell wire 1 faces the center of the spindle 18 when placed in a horizontal position. The pillars 11 and 20 are lifted and lowered independently and in synchronization with each other by a lifting mechanism (not shown). In addition, a separator (not shown) for separating each weight is disposed on the ring rail 13 at a center between the rings 15 so as to be orthogonal to the ring rail 13.

A suction duct (pneumatic duct) 21 is disposed behind the ring rail 13 in parallel with the spindle rail 17. A pneumatic flute 22 is connected to the suction duct 21 via a connection pipe 23. The new muffle flute 22 is a front roller 24 of a draft device.
And an intake port is formed at a position corresponding to the yarn path of the yarn Y continuing from the front roller 24 to the bobbin B.

Next, the operation of the snell wire 1 configured as described above will be described. As shown in FIG. 3, the lappet body 7 rotatably attached to the support bracket 6 is held by its own weight at a spinning position where the lower surface thereof abuts the support bracket 6 and extends horizontally during spinning. Then, the yarn Y sent from the front roller 24 is the snell wire 1
Is wound around the bobbin B through the traveler 14 while forming the balloon 25 through the yarn introduction hole 2 and the inside of the balloon control ring 16.

The yarn Y is generated not only in the balloon 25 (primary balloon) generated between the yarn introduction hole 2 and the traveler 14, but also between the front roller 24 and the yarn introduction hole 2 as shown by a chain line in FIG. Are spun while forming a secondary balloon 25a generated by the action of the balloon 25.

FIG. 5 is a schematic diagram showing the positional relationship between the ring rail 13, the bobbin B and the suction duct 21 and the relationship between the air flow during spinning and the like. During the spinning of the Z-twisted yarn, each spindle 18 is rotated clockwise in FIG.
Are also rotated in the same direction. And a large number of spindles 18
Are arranged in a line at a predetermined pitch, and an airflow (indicated by an arrow A) from the left side to the right side of the ring rail 13 in FIG. Occurs.

If a thread break occurs, if the thread break point is below the snell wire 1, the front roller 2
The yarn Y connected to the fourth side is sucked by the pneumatic flute 22. Further, the yarn Y below the snell wire 1, that is, the yarn Y connected to the traveler 14, is wound around the bobbin B while falling. Since the separator is provided on the ring rail 13, even if the yarn end of the yarn Y below the snell wire 1 tries to move toward the adjacent weight, the separator is blocked by the separator. Therefore, when a yarn break occurs below the snell wire 1, the cut yarn end is the yarn Y being spun by the next spindle.
The probability of occurrence of disconnection is extremely low.

On the other hand, when the yarn break is above the snell wire 1,
That is, when the yarn Y is generated on the front roller 24 side, the yarn Y connected to the front roller 24 side is sucked by the pneumatic flute 22 as described above. The portion of the yarn Y connected to the snell wire 1 above the snell wire 1 is a ring rail 1
3 and the action of the force based on the balloon 25. The action of the air flow A is determined by the spinning conditions irrespective of the position of the yarn break, and the action of the force based on the balloon 25 changes its direction depending on the position of the yarn Y constituting the balloon 25 when the yarn breaks.

Since the force based on the balloon 25 is in the tangential direction of the balloon 25 about the bobbin B, the force in the lateral direction (the longitudinal direction of the ring rail 13) is greatest because the direction of the tangential line is the ring. This is when the yarn has moved to the positions indicated by P1 and P2 in FIG. 5, which are parallel to the longitudinal direction of the rail 13. Of these, the position P on the front side of the ring rail 13
In 1, the direction of the force F by the balloon 25 is opposite to the direction of the airflow A. On the other hand, the position P2 on the rear side of the ring rail 13
Then, the direction of the force F by the balloon 25 becomes the same as the direction of the airflow A. In addition, each of the right and left sides of the position P2 is 90
In the range of °, the force F by the balloon 25 has a component force in the same direction as the direction of the airflow A.

Therefore, if a yarn break occurs when the yarn Y is within the predetermined range across the position P2 or P2, the yarn end is in a state in which the force by the air current A and the force F by the balloon 25 act to reinforce each other. Since the yarn falls while receiving a large force in the lateral direction, the probability that the yarn end is cut even if the yarn end is entangled with the yarn Y being spun by the adjacent weight is increased. However, if the yarn Y is captured by the slab catcher 3 immediately after the yarn breakage occurs,
The formation of the balloon 25 is prevented and the force F by the balloon 25
Does not act on the yarn above the snell wire 1, and the probability that the falling yarn end is cut even when it is entangled with the yarn Y being spun by the adjacent weight is very low.

When the thread break occurs near the front roller 24 from the snell wire 1, the grip of the thread Y above the snell wire 1 is lost, so that the upper portion of the balloon 25 expands as shown by a solid line in FIG. Therefore, if the slab catcher 3 exists near the downstream side in the rotation direction of the balloon 25 when a yarn break occurs, the balloon 25 is immediately caught by the slab catcher 3.

The yarn Y forming the balloon 25 while passing through the yarn introduction hole 2 of the snell wire 1 does not move so as to contact the entire inner periphery of the yarn introduction hole 2 but varies depending on the spinning conditions. As a result, as shown in FIG. 7, the range in which the yarn Y comes into contact with the yarn guiding hole 2 is that the angle θ1 formed with the straight line L1 passing through the center of the yarn guiding hole 2 and extending in the longitudinal direction of the snell wire 1 is about ± 30 °. Was in the range. This contact range becomes smaller as the distance between the front roller 24 and the yarn introduction hole 2 in the front-rear direction is larger. Conversely, the front roller 24 and the yarn introduction hole 2
If the distance in the front-rear direction is zero, the contact range is 360 °
Becomes Here, when the distance between the front roller 24 and the yarn introduction hole 2 in the front-rear direction is small, that is, when the contact range is large, the force of the air current acting on the yarn Y at the time of yarn breakage is small, and both breaks may occur. Sex is relatively low. But,
When the distance between the front roller 24 and the yarn introduction hole 2 in the front-rear direction is large, that is, when the contact range is small, the force of the air current acting on the yarn Y at the time of yarn breakage is large, so that the possibility of breakage is large. Become. In particular, when the contact range is less than 45 °, the influence of the airflow behind the ring rail 13 is great, and it is easy to cause breakage. Therefore, this angle θ
1, the slab catcher 3 is disposed at a rear position in the slab 1 when the yarn Y receives a large lateral force when the yarn breaks near the front roller 24.
Will be captured. When only one slab catcher 3 is provided, it is provided downstream of the straight line L1 in the rotation direction of the balloon 25, that is, the value of the angle θ is 0 ° to 40 °,
Preferably, it is set to be 20 ° to 30 °. The reason why the maximum value of the angle θ is larger than the maximum value of the angle in the range where the yarn Y comes into contact with the yarn introduction hole 2 is because the safety factor is expected.

This embodiment has the following effects. (1) Traveler 14 from front roller 24 during spinning
The slab catcher 3 is provided in a predetermined rear area corresponding to the contact area 2a of the yarn Y with the yarn introduction hole 2 that guides the yarn Y reaching the slab catcher 3. Therefore, even if a yarn break occurs at a position above the snell wire 1 and at a position where the yarn end easily moves to a position where it is entangled with the spun yarn of the adjacent weight by airflow, the yarn Y is caught by the slab catcher 3 at an early stage. Further, it is possible to prevent the yarn end from being entangled with the spun yarn of the adjacent weight.

(2) A straight line L1 in which the slab catcher 3 passes through the center of the yarn introduction hole 2 and extends in the longitudinal direction of the snell wire 1.
Is made to be 20 °.
Therefore, even if only one slab catcher 3 is provided, it is possible to prevent the yarn Y, which has been broken under a large force in the lateral direction, from being broken even if it is entangled with the spun yarn of the adjacent weight. be able to.

(3) The attachment portion 1a to the lappet 4 is formed so as to be offset from a straight line L1 passing through the center of the yarn introduction hole 2 and extending in the longitudinal direction of the snell wire 1, and the spiral portion 1b
Of the slab catcher 3 with respect to the straight line L1.
Therefore, the slab catcher 3 is moved to a desired position with respect to the snell wire 1 formed such that the attachment portion 1a to the lappet 4 is deviated from the straight line L1 passing through the center of the yarn introduction hole 2 and extending in the longitudinal direction of the snell wire 1. To be easily provided.

(4) Since the mounting portion 1a of the snell wire 1 is formed by bending the wire in a U-shape, the snell wire main body excluding the slab catcher 3 can be formed only by bending the wire, and the manufacturing cost is reduced. .

(5) Except for changing the winding start position of the spiral part 1b, it can be manufactured by the same method as the conventional snell wire 1, so that there is no need to change the manufacturing equipment. The embodiment is not limited to the above, and may be embodied as follows, for example.

As shown in FIGS. 8 (a) and 8 (b), a slab catcher 3 is newly provided in addition to the conventional slab catcher 3a provided at a fixed position, in which the spiral portion 1b has a single vortex. May be adopted. Further, the slab catcher 3a provided at the conventional fixed position may be omitted. In this case, the same effect as in the above embodiment can be obtained.

The present invention may be applied to a snell wire 1 attached to an angle type lappet 4 shown in FIG. 9A, in which an angle member 26 is used instead of a rod or a pipe as a support member of the lappet 4. As shown in FIG. 9 (a), the snell wire 1 is formed such that the attachment portion 1a is located on a straight line passing through the center of the yarn introduction hole 2 of the spiral portion 1b and extending in the longitudinal direction of the snell wire 1, and the screw 10 is attached. It is fixed by pressing the upper side of the portion 1a. A notch 27 is formed at the tip of the slab catcher 3. Since the notch 27 is formed at the tip of the slab catcher 3 in the snell wire 1, it is easier to catch the balloon as compared to a wire without the notch 27.

The number of the slab catchers 3 provided in a predetermined range corresponding to the contact range 2a of the yarn introduction hole 2 is not limited to one, but may be plural. For example, when two slab catchers 3 are provided, as shown in FIG. 10, it is preferable to add the slab catcher 3 to a position where the angle θ at which the lateral force F based on the balloon becomes the largest is 0 °. When three or more are provided, it is preferable to provide them also on the upstream side in the rotation direction of the balloon from the position where the angle θ is 0 °. In the case where a plurality of slab catchers 3 are provided, when a yarn break occurs at a position where the yarn ends easily move to a position where the yarn ends are entangled with the spun yarn of the adjacent weight by the airflow, the yarn Y is moved to one of the slab catchers 3. Thus, the effect of preventing the yarn end from being entangled with the spun yarn of the adjacent weight is improved.

The present invention may be applied to an S twisted snell wire. The S-twisted snell wire has a line-symmetrical shape with respect to the snell wire 1 of each of the above-described embodiments and a straight line L1 extending in the longitudinal direction of the snell wire 1 through the center of the yarn introduction hole 2. For example, a Snell wire 1 for S twisting corresponding to the Snell wire 1 shown in FIG.
The shape shown in FIG. 8 (a), 9 (a) and 10
The Snell wire for S twisting corresponding to the Snell wire 1 for Z twisting shown in FIG. At the time of spinning the S-twisted yarn, the rotation direction of the spindle is opposite to that of the Z-twisted. Therefore, the position of the slab catcher 3 is set to be symmetrical with respect to the straight-line L1 when the Z-twisted position is used. The same effect as that at the time of spinning the Z twisted yarn can be obtained.

The slab catcher 3 is newly provided on the snell wire 1 having the conventional slab catcher 3a provided at the fixed position. For example, Z shown in FIG.
The slab catcher 3 is provided on the twisting snell wire 1 as shown by a chain line to form the S twisting snell wire 1.
Conversely, the S-twisted snell wire 1 may be modified into the Z-twisted snell wire 1. In this case, the existing snell wire can be used effectively.

The inventions (technical ideas) other than those described in the claims which can be grasped from the embodiment will be described below together with their effects. (1) In the invention described in claim 1 or 2,
The slab catcher is formed so that an angle between the slab catcher and a straight line extending in the longitudinal direction of the snell wire passing through the center of the yarn guide hole is approximately 20 °. In this case, a single slab catcher can prevent a yarn that has been broken under a large force in the lateral direction from being entangled with a spun yarn of an adjacent weight and causing the broken yarn.

(2) In the invention according to any one of claims 1 to 3, a slab catcher is newly provided in the predetermined range in addition to the conventional slab catcher provided at a fixed position. ing. In this case, the existing snell wire can be used effectively.

[0045]

As described in detail above, claims 1 to 5 are provided.
According to the invention described in (1), when a yarn break occurs between the snell wire and the front roller, it is possible to prevent the yarn above the snell wire from being entangled with the spun yarn of the adjacent weight to prevent the yarn from being broken. it can.

According to the second aspect of the invention, the slab is attached to the slab with respect to the snel wire formed so that the attachment portion to the lappet is offset from a straight line passing through the center of the yarn introduction hole and extending in the longitudinal direction of the snel wire. It becomes easy to provide the catcher at a desired position.

According to the third aspect of the present invention, when the number of slab catchers is one, it is compared with the case where the slab catcher is provided on the upstream side in the rotation direction from the straight line passing through the center of the yarn introduction hole and extending in the longitudinal direction of the snell wire. Therefore, it is easy to catch the yarn before it becomes entangled with the adjacent weight when the yarn breaks.

According to the fourth aspect of the present invention, when the number of slab catchers is one, the yarn is caught before the yarn is entangled with the adjacent weight when the yarn breaks, as compared with the case where the slab catcher is provided in another range. Easy to do. According to the invention as set forth in claim 5, when a yarn break occurs at a position where the yarn end easily moves to a position where the yarn end rides on the airflow and is entangled with the spun yarn of the adjacent weight, the yarn is removed by one of the slab catchers. Immediately, the effect of preventing the yarn end from being entangled with the spun yarn of the adjacent weight is improved.

[Brief description of the drawings]

1A is a plan view of a snell wire according to an embodiment, FIG. 1B is a partially enlarged view of FIG. 1A, and FIG. 1C is a side view.

FIG. 2 is a plan view in which a snell wire is attached to a wrappet.

FIG. 3 is a partially broken schematic side view when applied to a ring spinning machine.

FIG. 4 is a perspective view in which a snell wire is attached to a wrappet.

FIG. 5 is a schematic plan view illustrating an operation.

FIG. 6 is a schematic diagram illustrating a balloon capturing operation of the slab catcher.

FIG. 7 is a schematic diagram showing a contact range of a yarn with respect to a yarn introduction hole.

8A is a plan view of a snell wire according to another embodiment, and FIG. 8B is a side view of the same.

FIG. 9 (a) is a plan view of the wrappet according to another embodiment, and FIG. 9 (b) is a side view of a snell wire.

FIG. 10 is a plan view of a snell wire according to another embodiment.

FIG. 11 is a plan view of a snell wire according to another embodiment.

FIG. 12 is a plan view of a conventional lappet.

FIG. 13 is a schematic side view showing a spinning state of the ring spinning machine.

FIG. 14 is a plan view of another conventional snell wire.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Snell wire, 1a ... Mounting part, 1b ... Spiral part, 2
... Yarn hole, 2 ... Contact area, 3 ... Slab catcher, 4 ...
Lappet, 14: Traveler, 24: Front roller, L
1 ... Line, Y ... Yarn, θ1 ... Angle between a straight line passing through the center of the yarn introduction hole in the contact area of the yarn and extending in the longitudinal direction of the snell wire.

Claims (5)

[Claims] 1. An angle between a contact area of a yarn and a straight line passing through the center of the yarn introduction hole and extending in the longitudinal direction of the snell wire when guiding the yarn from the front roller to the traveler during spinning is less than ± 45 °. Wherein the slab catcher is provided within a predetermined rear area corresponding to the contact area. 2. A mounting portion for a lappet is formed so as to be deviated from a straight line passing through the center of the yarn introduction hole and extending in the longitudinal direction of the snell wire, and a winding start position of a spiral portion is defined by the slab with respect to the straight line. The snell wire according to claim 1, wherein the snell wire is formed so as to be located on a side opposite to a base end of the catcher. 3. The snell wire according to claim 1, wherein the predetermined range is 0 ° to 40 ° downstream of a straight line passing through the center of the yarn introduction hole and extending in the longitudinal direction of the snell wire. 4. The snell wire according to claim 1, wherein the predetermined range is 20 ° to 30 ° downstream of the straight line extending through the center of the yarn introduction hole and extending in the longitudinal direction of the snell wire in the rotational direction. 5. The snell wire according to claim 1, wherein a plurality of slab catchers are provided within the predetermined range.