JP2021175835A - Fiber bundle bundling device in spinning machine - Google Patents

Abstract

To provide a fiber bundle bundling device in a spinning machine that is capable of suppressing the lowering of workability of work involving the attachment and detachment of a ventilation apron while suppressing lateral deviation of the ventilation apron.SOLUTION: A fiber bundle bundling device comprises a regulating member 40. The regulating member 40 has a rectangular parallelepiped body 41 and fitting parts 42 provided at both ends in the longitudinal direction of the body 41. The fitting parts 42 are elastically fitted to a bar 30.SELECTED DRAWING: Figure 6

Description

The present invention relates to a fiber bundle focusing device in a spinning machine.

Various fiber bundle bundling devices have been proposed for the purpose of reducing fluff and improving yarn quality such as yarn strength by bundling drafted fiber bundles in advance before twisting. For example, as shown in FIG. 11A or FIG. 11B, the fiber bundle focusing device 110 in the spinning machine disclosed in Patent Document 1 includes a nip roller pair 180, a suction pipe 150, a ventilation apron 160, and a guide. It is provided with a unit 170. The nip roller pair 180 is provided on the downstream side of the front roller pair 140 as the final delivery roller pair of the draft part. The nip roller pair 180 is composed of a bottom nip roller 180a and a top nip roller 180b. The suction pipe 150 is provided on the upstream side in the moving direction of the fiber bundle F with respect to the nip point by the nip roller pair 180. The guide portion 170 is provided on the downstream side in the moving direction of the fiber bundle F with respect to the nip point of the nip roller pair 180. The guide portion 170 guides the ventilation apron 160 so as to rotate at a predetermined position.

The guide portion 170 includes a flat bar 300 extending along the axial direction of the bottom nip roller 180a, and a tension applying means 290 supported by the bar 300 and applying tension to the ventilation apron 160. The tension applying means 290 includes a pressing member 310 movably supported with respect to the bar 300, and a spring member (not shown) that urges the pressing member 310 in a direction away from the bar 300. The pressing member 310 is provided with a convex portion 310b that regulates the movement of the ventilation apron 160 in the width direction. A part of the ventilation apron 160 is wound around the suction pipe 150, and a part of the ventilation apron 160 is wound around the bar 300 and the pressing member 310, and is rotated with the rotation of the bottom nip roller 180a.

Japanese Unexamined Patent Publication No. 2008-95233

However, for example, if wind cotton is deposited between the guide portion 170 and the ventilation apron 160, the ventilation apron 160 may get over the convex portion 310b of the guide portion 170 and shift laterally.
Therefore, the inventors have considered increasing the convex portion 310b so that the ventilation apron 160 does not get over the convex portion 310b of the guide portion 170. In such a case, it is possible to prevent the ventilation apron 160 from getting over the convex portion 310b. For example, the ventilation apron 160 may be removed from the guide portion 170 and the suction pipe 150 for cleaning the ventilation apron 160, or the ventilation apron may be removed after cleaning. When the 160 is attached, the convex portion 310b becomes an obstacle and the workability is lowered.

An object of the present invention has been made to solve the above problems, and an object thereof is in a spinning machine capable of suppressing lateral displacement of a ventilation apron and suppressing a decrease in workability of work accompanied by attachment / detachment of a ventilation apron. The purpose is to provide a fiber bundle focusing device.

The fiber bundle focusing device in the spinning machine that solves the above problems is provided on a plurality of nip rollers provided on the downstream side of the final delivery roller pair of the draft part and on the upstream side in the moving direction of the fiber bundle with respect to the nip point of the nip roller. A suction pipe having a plurality of guide surfaces provided with suction holes, a winding member provided in parallel with the suction pipe, and a plurality of endless shapes wound around the suction pipe and the winding member and rotated. A fiber bundle focusing device in a spinning machine equipped with a ventilation apron, comprising a regulation member provided between the ventilation aprons adjacent to each other in the axial direction of the nip roller and having a regulation surface facing the end of the ventilation apron. The restricting member includes a main body on which the restricting surface is formed, and a fitting portion that elastically fits into the winding member or the suction pipe.

According to this, the lateral displacement of the ventilation apron can be regulated by the main body of the regulating member. Further, by making the regulating member have a fitting portion that elastically fits into the suction pipe or the tensioner body, the regulating member can be easily attached to and detached from the suction pipe or the winding member. As a result, by removing the regulating member from the suction pipe or the winding member before performing the work involving the attachment / detachment of the ventilation apron, the regulation member does not become an obstacle during the attachment / detachment work of the ventilation apron, and the attachment / detachment work is performed. Is easy to do and workability is improved.

In the fiber bundle focusing device, the fitting portion may be fitted to the winding member.
According to this, in order to allow the fitting portion to be fitted to the suction pipe, for example, it is not necessary to make a hole in the suction pipe.

In the fiber bundle focusing device, it is preferable that the winding member is provided with a positioning portion that comes into contact with the regulating member and positions the regulating member in the axial direction.
According to this, the force for fitting the fitting portion to the winding member can be weakened as compared with the case where the positioning portion is not provided. Then, the regulating member can be easily attached to and detached from the winding member.

In the fiber bundle focusing device, the regulating member includes an extending portion extending from the main body to the ventilation apron side along the axial direction, and the extending portion is an end of the ventilation apron on the regulating member side. It is good to cover the part.

According to this, it is possible to make it difficult for the ventilation apron to get over the regulation surface of the regulation member. In addition, it is possible to make it difficult for the ventilation apron to get over the main body while suppressing the height of the main body. By suppressing the height of the main body, it is possible to reduce the area of the portion of the regulating member where the wind cotton may accumulate, so that the accumulation of the wind cotton can be suppressed.

In the fiber bundle focusing device, the nip roller is formed on a rotating shaft, the rotating shaft is provided with a gear for power transmission, an intermediate gear is meshed with the gear, and the regulating member is the gear. And a gear covering portion that covers the intermediate gear may be provided.

According to this, the operator can be protected from the rotating gear and the intermediate gear.

According to the present invention, it is possible to suppress the lateral displacement of the ventilation apron and to suppress the deterioration of workability of the work accompanied by the attachment / detachment of the ventilation apron.

(A) is a schematic side view of a fracture showing the fiber bundle focusing device according to the first embodiment, and (b) is a schematic side view showing a part of (a) in an enlarged manner. (A) is a partial schematic view of the fiber bundle focusing device as viewed from the front side in the fiber bundle moving direction, and (b) is a front view of the rotating shaft. The perspective view which shows the relationship between the ventilation apron and the winding member. The perspective view which shows the regulation member. The side view which shows the relationship between a regulation member and a bar. The perspective view which shows the relationship between the ventilation apron and the regulation member. The perspective view which shows the relationship between the ventilation apron and the regulation member in 2nd Embodiment. Schematic side view of a fracture showing a part of a fiber bundle focusing device. The perspective view which shows the relationship between the suction pipe and the regulation member in another embodiment. FIG. 6 is a partial cross-sectional view showing the relationship between the suction pipe and the regulating member in another embodiment. (A) is a schematic side view of a fracture showing the fiber bundle focusing device described in Patent Document 1, and (b) is a partially enlarged view of (a).

(First Embodiment)
Hereinafter, the first embodiment in which the fiber bundle focusing device in the spinning frame is embodied in the fiber bundle focusing device equipped in the spinning frame will be described with reference to FIGS. 1 to 5.

As shown in FIG. 1A or FIG. 1B, the fiber bundle focusing device 11 is provided on the downstream side of the final delivery roller pair 13 of the draft device 12 as a draft part.
The fiber bundle focusing device 11 includes a plurality of nip rollers, a suction pipe 15, a ventilation apron 16, a winding member 17, and a regulating member 40. The plurality of nip rollers are a bottom nip roller 18a as a nip roller arranged in parallel with the front bottom roller 13a of the final delivery roller pair 13, and a top as a nip roller pressed by the bottom nip roller 18a via an endless ventilation apron 16. It has a nip roller 19. The bottom nip roller 18a is formed on the rotating shaft 18.

The direction in which the axis of the bottom nip roller 18a extends is defined as the axis direction L. Like the front top roller 13b of the draft device 12, the top nip roller 19 is supported by a weighting arm (not shown) via a support member 20 for every two weights. The support member 20 is integrally formed with the support member of the front top roller 13b. The suction pipe 15 is provided on the upstream side of the fiber bundle F in the moving direction with respect to the nip point of the pair of nip rollers including the bottom nip roller 18a and the top nip roller 19, and has a plurality of guide surfaces 15b provided with suction holes 15a.

As shown in FIG. 2A or FIG. 2B, the bottom side of the fiber bundle focusing device 11 is half of the weight arranged between the roller stands 21 of the draft device 12, and in the first embodiment, four weights. Minutes are configured as one unit. At an intermediate position of the roller stands 21 arranged at predetermined intervals in the longitudinal direction of the machine base, a support arm 22 is arranged in a state where the base end side is supported by a support beam (not shown) extending in the longitudinal direction of the machine base. The rotating shaft 18 is supported between the roller stand 21 and the support arm 22.

The rotating shaft 18 is formed to have a predetermined length corresponding to a plurality of weights, for example, four weights in the first embodiment. Bearings 23 fixed to both ends of the rotating shaft 18 are fitted to end plugs 24. Then, the end plug 24 is supported by the support portions 21a and 22a provided on the roller stand 21 and the support arm 22 at the fitting portion 24a, so that the rotating shaft 18 rotates between the roller stand 21 and the support arm 22. It is supported as much as possible. The support portions 21a and 22a are formed so as to be able to support two end plugs 24, and can support the end plugs 24 attached to the end portions of the adjacent rotating shafts 18.

A gear 25 for power transmission is provided on the first end side of the rotating shaft 18 in the longitudinal direction. The gear 25 is provided at an intermediate portion of a pair of bottom nip rollers 18a arranged on the first end side in the longitudinal direction of the rotating shaft 18. The gear 25 can rotate integrally with the rotating shaft 18.

As shown in FIG. 1A, a gear portion 13c is formed on the front bottom roller 13a. The gear portion 13c is formed at a position facing the gear 25 (not shown in FIG. 1A). Then, similarly to the support arm 22, the intermediate gear 27 is rotatably supported by the support arm 26 whose base end side is fixed to the support beam, and the intermediate gear 27 meshes with the gear portion 13c and the gear 25. That is, the rotational force of the front bottom roller 13a is transmitted to the rotating shaft 18 via the gear portion 13c, the intermediate gear 27, and the gear 25.

A suction duct (not shown) is provided on the machine base so as to extend in the longitudinal direction (perpendicular to the paper surface in FIG. 1A). The suction pipe 15 is connected to the suction duct via a connecting pipe 28 in a state of extending parallel to the suction duct. The suction pipe 15 is supported with both ends fitted to a pair of end plugs 24 on which the rotating shaft 18 is supported.

The ventilation apron 16 is endless. The ventilation apron 16 is partially wound around the suction pipe 15, a part is wound around the winding member 17, and a part is wound so as to be in contact with the bottom nip roller 18a, and the guide surface 15b is pressed as the bottom nip roller 18a rotates. It is designed to rotate while sliding along the member 31. In the first embodiment, the breathable apron 16 is formed of a woven fabric that can ensure appropriate breathability.

Next, the winding member 17 will be described in detail. The winding member 17 guides the ventilation apron 16 to rotate at a position away from the bottom nip roller 18a on the side opposite to the fiber bundle guide side of the bottom nip roller 18a, and the ventilation apron on the outside of the winding member 17. Guide 16 in a plane. The winding member 17 includes a flat bar 30 and a tension applying means 29. The length of the bar 30 extends along the axial direction L of the bottom nip roller 18a. Each end of the bar 30 in the longitudinal direction is supported in a state of being fitted to each end plug 24. The first end side in the lateral direction orthogonal to the longitudinal direction of the bar 30 is bent to form a bent portion 30a. The bent portion 30a is formed over the entire length of the bar 30 in the longitudinal direction.

As shown in FIG. 3, the bar 30 includes a support portion 30b at a position corresponding to the bottom nip roller 18a. The support portion 30b projects from the second end of the bar 30 in the lateral direction so as to be separated from the bottom nip roller 18a. The bar 30 is provided with an edge portion 30c at a portion other than the support portion 30b at the second end in the lateral direction. The edge portion 30c is a portion that extends linearly in the longitudinal direction of the bar 30.

The tension applying means 29 includes a pressing member 31 movably supported by the support portion 30b of the bar 30, and a spring member 32 that urges the pressing member 31 in a direction away from the bar 30. The support portion 30b of the bar 30 is formed with four convex portions 30d extending in the lateral direction of the bar 30 on the side corresponding to the bottom nip roller 18a, corresponding to the mounting positions of the respective pressing members 31. ..

The pressing member 31 has a shape in which the first end portion of a long square plate-shaped metal plate in the lateral direction is bent. The pressing member 31 has a bent portion 31a formed at the first end portion in the lateral direction. The bent portion 31a is formed over the entire length of the pressing member 31 in the longitudinal direction.

The width, which is the dimension of the pressing member 31 in the longitudinal direction, is formed to be substantially the same as the dimension of the ventilation apron 16 in the lateral direction. Convex portions 31b are formed at both ends of the pressing member 31 in the longitudinal direction. The pair of convex portions 31b project to the side facing the ventilation apron 16 and restrict the movement of the ventilation apron 16 in the width direction. The convex portion 31b is adjusted to a height that can be overcome by bending the ventilation apron 16. The pressing member 31 is formed with an elongated hole 31c longer than the convex portion 30d at a position corresponding to the convex portion 30d of the support portion 30b. The pressing member 31 is attached to the bar 30 with the elongated hole 31c loosely fitted in the convex portion 30d.

As shown in FIG. 3, the spring member 32 is interposed between the support portion 30b and the bent portion 31a of the pressing member 31.
As shown in FIG. 1 (a) or FIG. 2 (a), a single-type pneumatic device that acts to suck the fiber bundle F sent from the draft device 12 at the time of thread breakage in the lower vicinity of the winding member 17. The tips of the suction nozzles 33 of the above are arranged respectively. The base end of the suction nozzle 33 is connected to a pneumatic duct (not shown) common to all weights.

Next, the regulation member 40 will be described in detail. The regulating member 40 is made of an elastomer. The regulating member 40 is provided between the ventilation aprons 16 adjacent to each other in the axial direction L. In the first embodiment, of the four ventilation aprons 16, one of the two ventilation aprons sandwiching the gear 25 in the axial direction L is the first ventilation apron 16a, and the other is the second ventilation apron 16b. The first ventilation apron 16a is a ventilation apron 16 that is closer to the support arm 22 than the second ventilation apron 16b.

The regulating member 40 guides the first ventilation apron 16a and the second ventilation apron 16b so as to pass through the guide surface 15b. The regulating member 40 has a rectangular parallelepiped main body 41 and fitting portions 42 provided at both ends of the main body 41 in the longitudinal direction.

The length of the main body 41 extends in the axial direction L. As shown in FIG. 4, flat surface-shaped regulation surfaces 41a are provided at both ends of the main body 41 in the longitudinal direction. When the end portion 16e of the first ventilation apron 16a or the second ventilation apron 16b displaced by a certain amount or more along the axial direction L comes into contact with the regulation surface 41a, the first ventilation apron 16a and the second ventilation along the axial direction L The lateral displacement of the apron 16b is regulated.

One fitting portion 42 is arranged closer to the first ventilation apron 16a in the main body 41, and the other fitting portion 42 is arranged closer to the second ventilation apron 16b in the main body 41.
As shown in FIG. 4 or 5, in the main body 41, the surface facing the bar 30 is referred to as the facing surface 410. The length of the facing surface 410 extends in the axial direction L. The fitting portion 42 has a first fitting piece 420 and a second fitting piece 421. The first fitting piece 420 and the second fitting piece 421 face each other in the lateral direction of the main body 41. The first fitting piece 420 and the second fitting piece 421 face each other with a gap in the lateral direction of the facing surface 410 of the main body 41.

The first fitting piece 420 curves and extends from the facing surface 410 toward the pressing member 31. The second fitting piece 421 extends in a stepped shape from the facing surface 410 toward the pressing member 31. The second fitting piece 421 has a base end portion 421a near the facing surface 410, a tip end portion 421b protruding from the base end portion 421a toward the pressing member 31, and a tip end portion 421b toward the first fitting piece 420. It has a protruding claw 421c.

The dimensions of the base end portion 421a, the tip end portion 421b, and the claw 421c in the axial direction L are the same. Further, the inner surface of the first fitting piece 420 and the inner surfaces of the base end portion 421a and the tip end portion 421b face each other in the lateral direction of the facing surface 410. Then, the dimension between the inner surface of the first fitting piece 420 and the inner surface of the tip portion 421b along the lateral direction of the facing surface 410 is defined as the distance K between the fitting portions 42. Here, the dimension of the outer surface of the bent portion 30a and the edge portion 30c along the lateral direction of the bar 30 is defined as the width W of the bar 30. The distance K between the fitting portions 42 is the same as or slightly shorter than the width W of the bar 30.

The first fitting piece 420 is in contact with the outer surface of the bent portion 30a of the bar 30, and the second fitting piece 421 is in contact with the edge portion 30c of the bar 30. The first fitting piece 420 and the second fitting piece 421 are each elastically deformed outward along the lateral direction of the bar 30. The first fitting piece 420 and the second fitting piece 421 are pressed against the bar 30 by the returning force from the elastic deformation of the first fitting piece 420 and the second fitting piece 421 to the original shape, and are attached to the bar 30. There is.

As shown in FIG. 6, the bar 30 includes a positioning portion 43. The positioning portion 43 is provided closer to the ventilation apron 16 than each fitting portion 42 in the axial direction L. The positioning portion 43 projects from the bar 30. The positioning portion 43 abuts on the fitting piece 420 to position the regulating member 40 in the axial direction L.

The regulating member 40 includes an extending portion 44. The extending portion 44 extends toward the ventilation apron 16 side along the axial direction L. The extending portion 44 extends from both the regulating surfaces 41a of the main body 41 to the ventilation apron 16 side. The extending portion 44 has a flat plate shape. Further, the extending portion 44 covers the end portion 16e on the regulating member 40 side in the lateral direction of the ventilation apron 16 from the outside. Therefore, the ventilation apron 16 is interposed between the extension portion 44 and the bar 30. The extending portion 44 is usually in non-contact with the ventilation apron 16.

Next, the operation of the first embodiment will be described.
When the spinning frame is operated, the fiber bundle F is drafted by the draft device 12 and then guided from the final delivery roller pair 13 to the fiber bundle focusing device 11. The bottom nip roller 18a and the top nip roller 19 are rotated at a speed substantially equal to the surface speed of the final delivery roller pair 13, and the fiber bundle F is turned after passing the nip points of the bottom nip roller 18a and the top nip roller 19 in an appropriate tension state. Then, while receiving the twist, it rotates to the downstream side.

For example, when the wind cotton generated during spinning is deposited between the bar 30 and the pressing member 31, a force acting on the ventilation apron 16 toward the outside of the outer peripheral surface of the ventilation apron 16 acts on the ventilation apron 16. May get over the convex portion 31b. However, when the end portion 16e of the ventilation apron 16 comes into contact with the regulation surface 41a, further lateral displacement of the ventilation apron 16 is restricted. Further, the regulation surface 41a of the regulation member 40 can prevent the ventilation apron 16 from getting caught in the gear 25. Further, by having the extending portion 44, it is possible to prevent the ventilation apron 16 from overcoming the regulation surface 41a.

Further, as maintenance of the spinning frame, the ventilation apron 16 is regularly cleaned in order to remove the wind cotton and the like adhering to the ventilation apron 16. When removing the ventilation apron 16 from the fiber bundle focusing device 11 for cleaning the ventilation apron 16, first, each fitting portion 42 of the regulating member 40 is removed from the bar 30, and then the ventilation apron 16 is removed from the fiber bundle focusing device 11. Remove from. When the cleaning of the ventilation apron 16 is completed, the ventilation apron 16 is attached to the fiber bundle focusing device 11, and then each fitting portion 42 of the regulation member 40 is attached to the bar 30.

In the first embodiment, the following effects can be obtained.
(1-1) The main body 41 can regulate the lateral displacement of the ventilation apron 16. Further, the restricting member 40 can be easily attached to and detached from the bar 30 by having a fitting portion 42 elastically fitted to the bar 30. As a result, by removing the regulating member 40 from the bar 30 before performing the work involving the attachment / detachment of the ventilation apron 16, the regulation member 40 does not become an obstacle when the ventilation apron 16 is attached / detached, and the attachment / detachment work is performed. Is easy to do and workability is improved.

(1-2) The fiber bundle focusing device 11 has a fitting portion 42 that elastically fits into the bar 30. Therefore, since the regulating member 40 can be attached to and detached from the suction pipe 15, it is not necessary to make a hole in the suction pipe 15.

(1-3) The positioning unit 43 can regulate the movement of the regulating member 40 in the axial direction L. Therefore, the force for fitting the fitting portion 42 to the bar 30 can be weakened as compared with the case where the bar 30 is not provided with the positioning portion 43. Therefore, the regulating member 40 can be easily attached to and detached from the bar 30.

(1-4) By providing the regulation surface 41a of the regulation member 40, the end portion 16e of the ventilation apron 16 comes into contact with the regulation surface 41a, and further lateral displacement of the ventilation apron 16 is regulated.

(1-5) By covering the end portion 16e of the ventilation apron 16 from the outside by the extending portion 44 of the regulation member 40, it is possible to make it difficult for the ventilation apron 16 to get over the regulation surface 41a of the regulation member 40. Therefore, as compared with the case where the extending portion 44 is not provided, it is possible to make it difficult for the ventilation apron 16 to get over the regulation surface 41a while suppressing the height of the main body 41. By suppressing the height of the main body 41, it is possible to reduce the area of the portion of the regulating member 40 where the wind cotton may accumulate, so that the accumulation of the wind cotton can be suppressed.

(Second Embodiment)
Hereinafter, a second embodiment in which the fiber bundle focusing device in the spinning machine is embodied will be described with reference to FIGS. 7 and 8. In the embodiments described below, the duplicated description will be omitted or simplified by adding the same reference numerals to the same configurations as those of the first embodiment already described. The second embodiment is different from the first embodiment in that the regulatory member 40 described in the first embodiment does not have the extension portion 44.

As shown in FIG. 7 or 8, the regulating member 40 has a first cover member 50a as a gear covering portion and a second cover member 50b as a gear covering portion. The first cover member 50a extends from the main body 41 toward the gear 25, and the second cover member 50b extends from the main body 41 toward the intermediate gear 27. The first cover member 50a and the second cover member 50b each have a curved plate shape. The first cover member 50a covers the gear 25 from the outside. Further, the second cover member 50b covers the intermediate gear 27 from the outside.

In the second embodiment, the following effects can be obtained in addition to the same effects as in (1-1) in the first embodiment.
(2-1) The regulation member 40 includes a first cover member 50a that covers the gear 25 and a second cover member 50b that covers the intermediate gear 27. As a result, the operator can be protected from the rotating gear 25 and the intermediate gear 27.

Each of the above embodiments can be modified and implemented as follows. Each of the above embodiments and the following modified examples can be implemented in combination with each other within a technically consistent range.

○ As shown in FIGS. 9 and 10, the regulating member 40 may be elastically fitted into the fitting hole 15h formed in the suction pipe 15. The regulating member 40 includes a rectangular parallelepiped main body 41, a fitting portion 62 integrated with the main body 41, and an extension portion 44 integrated with the main body 41.

The fitting portion 62 projects from the main body 41 toward the suction pipe 15 in an annular shape. An annular retaining portion 65 is projected from the protruding end of the fitting portion 62. Further, an annular holding portion 63 is projected from the outer peripheral surface of the fitting portion 62 closer to the main body 41 than the retaining portion 65. Then, a groove 64 is formed between the retaining portion 65 and the holding portion 63 into which the area around the fitting hole 15h of the suction pipe 15 is inserted. The width of the groove 64 in the opposite direction between the retaining portion 65 and the holding portion 63 is the same as the thickness around the fitting hole 15h of the suction pipe 15. Further, the outer circumference of the bottom surface of the groove 64 before the restricting member 40 is attached to the fitting hole 15h is larger than the inner circumference of the fitting hole 15h of the suction pipe 15.

When the restricting member 40 is attached to the suction pipe 15, the retaining portion 65 is pushed inside the fitting hole 15h of the suction pipe 15 to arrange the retaining portion 65 in the suction pipe 15. Then, the area around the fitting hole 15h of the suction pipe 15 is sandwiched between the retaining portion 65 and the holding portion 63, and the bottom surface of the retaining portion 65, the holding portion 63, and the groove 64 is the fitting hole of the suction pipe 15. Adhere around 15h. In this way, the regulating member 40 is attached around the fitting hole 15h of the suction pipe 15. That is, the regulating member 40 is attached to the suction pipe 15 by fitting.

○ In each of the above embodiments, the positioning unit 43 is provided on the bar 30, but the positioning unit 43 may be provided on the regulating member 40. In short, as long as the movement of the regulating member 40 in the axial direction L is restricted, the configuration of the positioning portion may be any configuration, and one or both of the bar 30 and the regulating member 40 may be configured. It may be provided.

○ In the first embodiment, the positioning unit 43 may not be provided. In this case, it is preferable that the fitting portion 42 has a fitting force that restricts the movement in the axial direction L.
-In each of the above embodiments, the main body 41 and the fitting portions 42 and 62 are made of elastomer, but they do not necessarily have to be made of elastomer. In short, the material may be appropriately changed as long as the material has enough strength to allow the fitting portions 42 and 62 to be attached to and detached from the winding member 17 or the suction pipe 15.

-In each of the above embodiments, the fitting portions 42 and 62 are integrated with the main body 41, but the fitting portions 42 and 62 may be configured to be separate from the main body 41.
○ In the second embodiment, the regulating member 40 has a configuration having two types of gear covering portions, a first cover member 50a covering the gear 25 and a second cover member 50b covering the intermediate gear 27. It may have a configuration having only one of them.

○ In each of the above embodiments, the bar 30 does not necessarily have to be provided with a bent portion 30a extending over the entire length at one end in the width direction.
-In each of the above embodiments, only one fiber bundle focusing device 11 is provided for one bar 30, but a plurality of fiber bundle focusing devices 11 may be provided.

○ In each of the above embodiments, the winding member 17 may not include the tension applying means 29 and may have only the bar 30. In this case, it is preferable that the bar 30 is provided with a convex portion 31b that guides the ventilation apron 16.

○ In each of the above embodiments, instead of the configuration in which the bottom nip roller 18a and the top nip roller 19 nip the fiber bundle F, the suction pipe 15 and the top nip roller 19 are configured to nip the fiber bundle F and wind the fiber bundle F around the suction pipe 15. The hung ventilation apron 16 may be rotated by the top nip roller 19.

11 ... Fiber bundle focusing device, 12 ... Draft device as a draft part, 13 ... Final delivery roller pair, 15 ... Suction pipe, 15a ... Suction hole, 15b ... Guide surface, 16 ... Ventilation apron, 16e ... End, 17 ... Winding member, 18 ... Rotating shaft, 18a ... Bottom nip roller as nip roller, 19 ... Top nip roller as nip roller, 25 ... Gear, 27 ... Intermediate gear, 40 ... Regulatory member, 41 ... Main body, 41a ... Regulatory surface, 42 ... Fitting part, 43 ... Positioning part, 44 ... Extension part, 50a ... First cover member as gear covering part, 50b ... Second cover member as gear covering part, F ... Fiber bundle, L ... Axial direction.

Claims (5)

Multiple nip rollers provided on the downstream side of the final delivery roller pair of the draft part,
A suction pipe provided on the upstream side in the moving direction of the fiber bundle with respect to the nip point of the nip roller and having a plurality of guide surfaces provided with suction holes, and a suction pipe.
A winding member provided in parallel with the suction pipe and
A fiber bundle focusing device in a spinning machine comprising the suction pipe and a plurality of endless ventilation aprons that are wound around and rotated around the winding member.
A regulating member provided between the ventilation aprons adjacent to each other in the axial direction of the nip roller and having a regulation surface facing the end of the ventilation apron is provided.
The regulating member includes a main body on which the regulating surface is formed and a main body.
A fiber bundle focusing device in a spinning machine, which comprises a winding member or a fitting portion that elastically fits into the suction pipe. The fiber bundle focusing device in a spinning machine according to claim 1, wherein the fitting portion is fitted to the winding member. The fiber bundle focusing device according to claim 2, wherein the winding member is provided with a positioning portion that comes into contact with the regulating member and positions the regulating member in the axial direction. The restricting member includes an extending portion extending from the main body to the ventilation apron side along the axial direction, and the extending portion covers an end portion of the ventilation apron on the regulating member side. The fiber bundle focusing device in the spinning machine according to any one of claims 1 to 3. The nip roller is formed on a rotating shaft, the rotating shaft is provided with a gear for power transmission, an intermediate gear is meshed with the gear, and the regulating member is a gear covering the gear and the intermediate gear. The fiber bundle focusing device in a spinning machine according to any one of claims 1 to 4, further comprising a covering portion.

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