Traverse apparatus

Abstract

A yarn winder is provided for winding the yarn on a plurality of bobbin holders (4), (5), (4′), and (5′) at the same time, a plurality of traversing support point guides (12) and (12′) is arranged in parallel to a direction that is orthogonal to an axial direction of a bobbin holder at an upstream position of traverse devices (30) and (30′), the plurality of traversing support point guides is arranged in parallel to the direction that is orthogonal to the axial direction of the bobbin holder during hanging up of the yarn so as to wind the thread on the plural bobbin holders at the same time, and the plurality of traversing support point guides can be aligned in the axial direction of the bobbin holder when hanging up the yarn on the traversing support point guides.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a continuation of International Application No. PCT/JP2003/010464, filed Aug. 19, 2003, which was published in the Japanese language on Apr. 1, 2004, under International Publication No. WO 2004/026746 A1, and the disclosure of which is incorporated herein by reference.

BACKGROUND OF THE INVENTION

The present invention relates to a yarn winder for winding a yarn on a plurality of the bobbin holders at the same time, and more particularly, the present invention relates to a yarn winder for winding a yarn on a plurality of the bobbin holders at the same time by arranging a plurality of the revolving-type automatic winders, in which a turret table is provided rotatably on a unit case, and a plurality of the bobbin holders for fitting a bobbin for winding the yarn thereon is rotatably carried on the turret table so as to wind the yarn while switching the bobbin holder into other bobbin holder when the yarn winded by one bobbin holder reaches to a predetermined amount.

In the case of continuously winding a yarn spun from a spinneret of a spinning machine, a revolving-type yarn winder is generally used, which yarn winder is composed of a turret table that is rotatably arranged in a unit case; two bobbin holders that are rotatably carried on a turret table and a bobbin for winding the tread is fit thereon; a movable frame body elevating in a vertical direction; a pressure-contact roller that is rotatably attached to the movable frame body; and a traverse device located at an upstream side of the pressure-contact roller viewed from a direction of a yarn path.

As such a conventional yarn winder, a structure such that two winders are arranged adjacent to each other and the yarn is separated from the upstream supply roller to be winded on two winders is available.

As other conventional art, a patent document 1 (JP-A-1-267270) discloses a structure that a plurality of the turret tables is arranged on one machine frame in a vertical direction.

As further other conventional art, a patent document 2 (JP-T-2002-515388) discloses a structure that two turret tables are arranged on one machine frame in a vertical direction and units composed of these two turret tables are arranged symmetrically.

In recent years, in order to increase amount of production, the yarn winder tents to have many ends, and many ends are realized by combining the winders. In this case, improvement of space efficiency per amount of production, decrease of a plant cost, improvement of a yarn hanging up efficiency, and improvement of a winded form are required.

For this requirement, in the conventional apparatus that was described at first, two winders are arranged in parallel, so that a clearance of the yarn in two winders becomes long and an angle a made by two yarns that are supplied from a supply roller becomes large. As a result, this involves a problem such that a contact angle of the yarn and a guide G becomes large, a friction resistance becomes large, and a feather is generated in the yarn.

As a counter measure of this, if the contact angle of the yarn and the guide G is made smaller, a position of the supply roller is made higher, and this involves a problem such that the operationality gets worse.

According to the conventional apparatus disclosed in the patent document 1, since the plural turret tables are arranged vertically, the height of the machine is made higher and the operationality gets worse remarkably.

In addition, according to the conventional apparatus disclosed in the patent document 2, in a first yarn hanging up, the yarn is hanged up on a bobbin that is arranged on a bobbin holder rotating with contact the pressure-contact roller arranged at a downstream of the traverse device through a traversing support point guide while suctioning a plurality of the yarns by a yarn suction device, and this involves the following problem.

Winder devices are arranged symmetrically in vertical and horizontal directions. Therefore, when hanging up the yarn, in order to evade interference between the yarn and the winder portion, it is necessary to hang up the yarn one by one from the upper winder device or the lower winder device while suctioning a plurality of the yarns, and as a result, it takes long hours to hang up the yarn and this leads to increase a waste yarn and the efficiency gets worse.

Also when hanging up the yarn on the right and left winder devices, the pressure-contact roller and the bobbin holder contact each other with being arranged along with each other. Therefore, the yarn should be bent largely in a lateral direction upon hanging up the yarn and this involves a problem such that a success rate of hanging-up of the yarn gets worse.

Further, in accordance with spread of the yarn by winding, the pressure-contact roller is evacuated into a horizontal direction, so that a width of the winder is made larger and an efficiency of an installation space gets remarkably worse.

In view of problems of the above-described conventional arts, the applicant of the present application suggests a patent document 3 (Japanese Patent Application No. 2002-33760), of which object is to provide a revolving-type automatic winder with many ends having a high space efficiency.

According to this patent document 3, the revolving-type automatic winder is suggested, in which at least two bobbin holders are rotatably arranged on a turret table that can rotate around a turning center; a pressure-contact roller and a traverse device are arranged at an upstream side of a yarn path with respect to the bobbin holder; and if the yarn amount winded by the bobbin fit to one bobbin holder reaches to a predetermined amount, the bobbin is switched into the bobbin arranged at other bobbin holder so as to wind the yarn; wherein the turret tables are arranged at the opposite sides of the yarn path respectively; the rotational directions of one turret table and other turret table are inverse each other; the rotational direction of a pressure-contact roller arranged for one turret table and that of the pressure-contact roller for other turret table are inverse each other; and the pressure-contact roller and the traverse device are located upper than the rotational center of the turret table.

Further, the applicant of the present application suggests a patent document 4 (Japanese Patent Application No. 2002-239860). According to this patent document 4, the revolving-type automatic winder is suggested, in which at least two bobbin holders are fit rotatably to each of two turret tables; the pressure-contact roller and the traverse device are arranged at the upstream side of each turret table in response to the bobbin holder; and if the yarn amount winded by the bobbin fit to one bobbin holder reaches to a predetermined amount, the bobbin is switched into the bobbin arranged at other bobbin holder so as to wind the yarn; wherein the two turret tables are arranged at the opposite sides of the yarn path the rotational directions of one turret table and other turret table are inverse each other; a rotational direction of a pressure-contact roller arranged for one turret table and that of the pressure-contact roller for other turret table are inverse each other; and each center of the bobbin holder or the pressure-contact roller contacting the yarn during winding is located between a virtual line connecting the centers of the two bobbin holders that are projected on one turret table and a virtual line connecting the centers of the two bobbin holders that are projected on other turret table.

BRIEF SUMMARY OF THE INVENTION

There is no disclosure about details of a traversing support point guide in a yarn winder as disclosed in the above-described patent document 3 or patent document 4, however, practically, as shown in FIGS. 7A and 7B, a shaft 51 is provided in parallel with bobbin holders 4, 5, 4′, and 5; a block 52 is movably fit along the shaft 51; a bar 53 is projected from the opposite ends of the block 52 with being orthogonal to the bobbin holders 4, 5, 4′, and 5; traversing support point guides 12 and 12′ are provided to each bar 53 so as to divide the yarns supplied from the upstream.

However, according to such a device, when hanging up the yarn, as shown in FIG. 7B, it is necessary that the block 52 is moved into an operational side; a suction gun SG is moved after the yarn is hanged up on a traversing support point guide 12 arranged at one side of the block 52; and the yarn is hanged up on a support point guide 12′ arranged at the opposite side of the block 52. According to such a traverse apparatus, since the suction gun SG is moved as pulling back the yarn, the yarn contacts the shaft 51 or other members and the yarn during hanging up is cut frequently.

As a counter measure of this, as shown in FIGS. 4A and 4B, it is considered that, on the upstream position of the traverse device, a bar is projected only at one side of the block in parallel with the bobbin holder, and a plurality of the traversing support point guides is arranged in parallel at a back side of this bar (namely, the adjacent side of the block) and a front side thereof (namely, the side far from the block).

In other words, the present invention may provide a traverse apparatus of a yarn in a yarn winder for winding the yarn on a plurality of bobbin holders at the same time, wherein a plurality of traversing support point guides is arranged in parallel to a direction that is orthogonal to an axial direction of a bobbin holder at an upstream position of traverse devices.

In the meantime, “a direction that is orthogonal to an axial direction of a bobbin holder” may include not only a directing making an angle of 90° with respect to the axial direction of the bobbin holder but also a direction making an angle of substantially 90° with respect to the axial direction of the bobbin holder.

Such a winder may be operated at the one side of the block and it is no need to move the suction gun largely. However, it is necessary to alternately hang up the yarn on the traversing support point guides that are arranged in parallel at the back side of the bar and the front side thereof from the operational side (namely, a front end side of the bobbin holder). Therefore, particularly, when hanging up the yarn on the traversing support point guide at the back side, the traversing support point guide at the front side may be an obstacle.

As a counter measure of this, the present invention may provide the traverse apparatus of a yarn, wherein the plurality of traversing support point guides is arranged in parallel to the direction that is orthogonal to the axial direction of the bobbin holder during hanging up of the yarn so as to wind the tread on the plural bobbin holders at the same time, and the plurality of traversing support point guides can be aligned in the axial direction of the bobbin holder when hanging up the yarn on the traversing support point guides.

More specifically, as shown in the embodiment, it is preferable that a link mechanism is provided within the traverse apparatus, and by pulling the shaft, the traversing support point guide is rotated by 90° to be arranged on a line with respect to the axial direction.

Further, the present invention may provide the traverse apparatus of a yarn, wherein the plurality of the traversing support point guides can approach each other in the axial direction of the bobbin holder when hanging up the yarn on the traversing support point guide.

In other words, as shown in the embodiment, it is preferable that a slide mechanism is provided to the traverse apparatus, and by pulling the shaft, the traversing support point guide can be pulled out in front.

BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS

The foregoing summary, as well as the following detailed description of the invention, will be better understood when read in conjunction with the appended drawings. For the purpose of illustrating the invention, there are shown in the drawings embodiments which are presently preferred. It should be understood, however, that the invention is not limited to the precise arrangements and instrumentalities shown. In the drawings:

FIG. 1 is a front view of an embodiment of a revolving-type automatic winder according to the present invention;

FIGS. 2A and 2B are side views showing that a yarn is initially hanged up on a device according to the embodiment shown in FIG. 1; and specifically, FIG. 2A shows that the yarn is hanged up on a traversing support point guide, and FIG. 2B shows that the yarn is hanged up on an initial yarn hanging up guide;

FIG. 3 is a side view showing that the yarn is initially hanged up on the device according to the embodiment shown in FIG. 1;

FIGS. 4A and 4B are plan views of an embodiment of a traversing support point guide according to the present invention; and specifically, FIG. 4A shows a steady operation and FIG. 4B shows hanging up of the yarn;

FIGS. 5A, 5B and 5C are plan views of other embodiment of a traversing support point guide according to the present invention; and specifically, FIG. 5A shows a steady operation, FIG. 5B shows a state of rotating a traversing guide, and FIG. 5C shows hanging up of the yarn.

FIG. 6 is a detailed plan view of the embodiment shown in FIG. 5; and

FIGS. 7A and 7B are plan views of a conventional traversing support point guide; and specifically, FIG. 7A shows a steady operation and FIG. 7B shows hanging up of the yarn.

DETAILED DESCRIPTION OF THE INVENTION

The present invention will be described in detail with reference to the attached drawings showing the embodiment(s) of the present invention. In the drawings, FIG. 1 is a front view of an embodiment of a revolving-type automatic winder according to the present invention; FIGS. 2A and 2B and FIG. 3 are side views showing that a yarn is initially hanged up on a device according to this embodiment; specifically, FIG. 2A shows that the yarn is hanged up on a traversing support point guide, and FIG. 2B shows that the yarn is hanged up on an initial yarn hanging up guide. FIGS. 4A and 4B are plan views of an embodiment of a traversing support point guide according to the present invention; and specifically, FIG. 4A shows a steady operation and FIG. 4B shows hanging up of the yarn. FIGS. 5A, 5B and 5C are plan views of other embodiment of a traversing support point guide according to the present invention; and specifically, FIG. 5A shows a steady operation, FIG. 5B shows a state of rotating a traversing guide, and FIG. 5C shows hanging up of the yarn. FIG. 6 is a detailed plan view of the embodiment shown in FIG. 5A, 5B and 5C.

In FIG. 1 and FIGS. 2A and 2B, plural (according to the present embodiment, eight) yarns Y to be supplied continuously from a spinneret (not illustrated) of a spinning machine are winded and hanged up on supply rollers R1 and R2. At an outlet of the supply roller R2, a yarn guide G for dividing the plural yarns Y at predetermined clearances is arranged.

At the downstream of the supply roller R2, traversing support point guides 12 and 12′ are provided and the traversing support point guides 12 and 12′ control the plural yarns to be divided at clearances of plural packages to be winded by a winder W.

FIGS. 4A and 4B are plan views of an embodiment of a traversing support point guide according to the present invention. In FIGS. 4A and 4B, a traversing support point guide moving device (shaft) 11 located horizontally at the downstream of the supply roller R2 is provided in parallel with bobbin holders 4, 5, 4′, 5′ to be described later; and a plurality of the blocks 31 is arranged to move along the shaft 11. A bar 32 is projected from each block 31 in a direction being orthogonal to the shaft 11, and the traversing support point guides 12 and 12′ are arranged side by side at each bar 32. The traversing support point guides 12 and 12′ can move in an axial direction along the shaft 11 together with the block 31. At the steady operation, as shown in FIG. 4A, the adjacent traversing support point guides 12 and 12′ are separated at clearances in an axial direction of the shaft 11, and upon hanging up of the yarn, as shown in FIG. 4B, the blocks 31 are adjacent to each other.

FIGS. 5A, 5B and 5C and FIG. 6 are plan views of other embodiment of the traversing support point guide according to the present invention, and in the drawings, the traversing support point guide moving device (namely, the shaft) located horizontally at the downstream of the supply roller R2 is arranged in parallel with the bobbin holders 4, 5, 4′, 5′ in the same way and a plurality of the blocks 31 is fit so as to move along the shaft 11. As shown in FIG. 6, the bar 32 is axially attached to each block 31 by a pin 33. On each bar 32, the traversing support point guides 12 and 12′ are arranged side by side. Further, a plate 34 is axially arranged on each block 31 by a pin 35 (refer to FIG. 6) to swing. A shaft 39 for rotating the bar 32 is provided in parallel with the shaft 11, and a subsidiary block 36 is movably arranged on this shaft 39. The subsidiary block 36 has a predetermined length in an axial direction of the shaft, and when hanging up the yarn as shown in FIG. 5C, the blocks 31 are separated at predetermined clearances. Two long holds 34a and 34b are formed in the vicinity of the opposite ends of each plate 34. Further, a pin 37 projected on the subsidiary block 36 is fit into the long hole 34a and a pin 38 projected on the subsidiary block 36 is fit into the long hole 34b, respectively.

By moving the shaft 39 in the axial direction, the plate 34 can be swung around the pin 35, and by swinging of the plate 34, it is possible to locate the bar 32 carrying the traversing support point guides 12 and 12′ at a position being orthogonal to the shaft 11 (the steady operational position) as shown in FIG. 5A or at a position in parallel with the shaft 11 (the yarn hanging up position) as shown in FIG. 5C.

In addition, by moving the shaft 11 into the axial direction, as shown in FIG. 5A, the block 31 can be located at a position separated in the axial direction (the steady operational position) and the block 31 can be located at a position where they are adjacent to each other to be separated depending on the length of the subsidiary block 36 (the yarn hanging up position).

In other words, by operating the shafts 11 and 39, as shown in FIG. 5A, the block 31 is separated in the axial direction and the bar 32 carrying the traversing support point guides 12 and 12′ is located at a position being orthogonal to the shaft 11 (the steady operational position); and as shown in FIG. 5C, the block 31 can be located in adjacent to each other to be separated depending on the length of the subsidiary block 36 and the bar 32 carrying the traversing support point guides 12 and 12′ can be located at a position in parallel with the shaft 11 (the yarn hanging up position).

At a bottom of a unit case 1 of the winder W, a base 2 elongated to the vicinity of the front operational space (the left side in FIGS. 2A and 2B) is provided. At a front face of the unit case 1, turret tables 3 and 3′ are provided rotatably around a horizontal center axis to be in a disk shape, and by driving means such as a motor (not illustrated), the turret tables 3 and 3′ are rotated in an inverse direction with each other in such a manner that the turret table 3 is rotated in a clockwise direction and the turret table 3′ is rotated in a counterclockwise direction.

On the turret tables 3 and 3′, two bobbin holders 4, 5 or 4′, 5′ are rotatably projected in a direction vertical to a surface of FIG. 1 (namely, a surface direction of FIGS. 2A and 2B), respectively. The bobbin holders 4, 5, 4′, and 5′ are connected to a driving device (not illustrated), and at a predetermined speed, two bobbin holders 4 and 5 are rotated in a clockwise direction and other two bobbin holders 4′ and 5′ are rotated in a counterclockwise direction. Eight bobbins 6 are fit to the bobbin holders 4, 5, 4′, and 5′ according to the present embodiment, respectively.

According to the present embodiment, a spindle driven winder for directly driving the bobbin holder by an electric motor is described. However, the present invention may be a winder of a friction driving system that drives the pressure-contact roller by the electric motor and is driven by pressure-contacting the bobbin holder to the pressure-contact roller.

Inside of the unit case 1, two slide rails (not illustrated) are attached vertically, and along the slide rail, an elevating frame 8 can elevate by a fluid cylinder (not illustrated).

Elevating frames 8 and 8′ carry a bobbin 6 that is fit to the bobbin holders 4, 5, 4′, 5′ or pressure-contact rollers 9, 9′ contacting a yarn layer that is formed on the bobbin 6 and a traverse device 10 that twills the yarn Y in the axial direction of the bobbin 6. In the meantime, the pressure-contact rollers 9, 9′ are supported by the elevating frame 8 to swing with at least one being independent from the elevating frame 8.

The pressure-contact rollers 9, 9′ may supply the yarn Y to the bobbin 6 when winding the yarn Y on the bobbin 6 that is fit to the bobbin holders 4, 5, 4′ and 5′; may make the formation of the package better by pressure-contacting the bobbin 6 or the yarn layer formed on the bobbin 6; and may contact the package surface in order to make hardness of the package higher.

According to the embodiment, between two pressure-contact rollers 9 and 9′, one traverse device 10 is located. The traverse device 10 has a cylindrical cam (not illustrated) to be rotated by the driving device (not illustrated); and a traverse guide engaged into a groove of the cam is reciprocated horizontally so as to twill the yarn Y engaged in the traverse guide in the axial direction of the bobbin 6 within a traverse range.

In the meantime, according to the embodiment, the cam-type traverse device is employed, however, according to the present invention, the traverse device of a rotation blade type or the like may be available.

According to the present embodiment, the traverse device is configured in such a manner that centers of the pressure-contact rollers 9 and 9′ contacting the bobbin holders 4, 5, 4′, and 5′ are located between a vertical line c connecting the centers of two bobbin holders 4 and 5 that are projected on one turret table 3 and a vertical line c′ connecting the centers of two bobbin holders 4′ and 5′ that are projected on one turret table 3′.

According to the present embodiment, two turret tables are arranged at the opposite sides of the yarn path; the rotational directions of the pressure-contact roller arranged for one turret table and the pressure-contact roller arranged for other turret table are inverse each other; and the rotational direction of a pressure-contact roller arranged for one turret table and that of the pressure-contact roller for other turret table are inverse each other. Accordingly, it is possible to make a width of the entire winder smaller. Therefore, the installation space of the winder is small and this leads to improving of the space efficiency.

In addition, when starting switching of the yarn, namely, when starting rotation of the turret table, acceleration is added to the turret table, so that the bobbin holder tends to push up the pressure-contact roller by this acceleration. On the contrary, according to the present invention, the pressure-contact rollers 9 and 9′ are located in a specific geometrical arrangement with respect to the turret tables 3 and 3′, namely, the pressure-contact rollers 9 and 9′ are arranged between the vertical line c connecting the centers of two bobbin holders 4 and 5 that are projected on one turret table 3 and the vertical line c′ connecting the centers of two bobbin holders 4′ and 5′ that are projected on one turret table 3′. Due to this geometrical arrangement, the present invention has advantages such that it is possible to evade pushing-up of the pressure-contact roller by the bobbin holder due to the acceleration when starting the rotation of the turret tables 3 and 3′; the bobbin holder can smoothly rotate; the damage due to moving of the yarn inside on the surface of the package and the pressure contact when starting the rotation of the turret table can be evaded, and a quality of the tread can be improved.

Further, in addition to the above-described geometrical arrangement, by making an angle β made by the virtual line connecting the rotational centers of the pressure-contact rollers 9 and 9′ during winding of the yarn and the rotational centers of the bobbin holders 4 and 5 and a vertical line d, it is possible to make the moving directions of the pressure-contact rollers 9 and 9′ substantially into a vertical direction. Therefore, it is possible to make the width of the winder smaller, and this leans to improvement of the installation space.

Further, the vertical lines c and c′ connecting the centers of two bobbin holders 4, 5 and 4′, 5′ respectively, forms an inverted V-shape at least when starting the winding of the yarn. In other words, the width of the machine can be smaller by making the clearances of vacant bobbins 4 and 4′ are made smaller than a clearance L when a diameter of a spiral package is attached and larger than the clearance when the spiral package does not interfere just after switching.

In addition, as described above, the traversing support point guide moving device 11 is provided upward of the traverse device substantially in parallel with the bobbin holder, and a plurality of the traversing support point guides 12 and 12′ is located on the traversing support point guide moving device 11 in response to the bobbins 6 and 6′ that are fit to the bobbin holders 4, 5, 4′ and 5′.

The traversing support point guides 12 and 12′ can move in the axial direction of the bobbin holders 4, 5, 4′, and 5′. Thereby, the traversing support point guides 12 and 12′ are fixed to a position corresponding to the center of the package to be winded on the bobbin 6 that is fit to the bobbin holders 4, 5, 4′, and 5′, and on the other hand, when hanging up the yarn on the bobbin, the traversing support point guides 12 and 12′ move to the front end side of the bobbin holder, namely, the operational side.

Further, the lower ends 14a and 14′a of the yarn hanging up devices 14 and 14′ are axially attached to the lower part of the center part of the unit case 1. The yarn hanging up devices 14 and 14′ can swing around the lower ends 14a and 14′a and they move by a cylinder (not illustrated) between a recovery position at the lower part of the center part of the unit case 1 (FIG. 1) and the operational position when initially hanging up the yarn (FIG. 4).

In other words, the yarn hanging up devices 14 and 14′ are arranged in response to the bobbin holders 4 and 5 at the winding sides respectively, and the yarn hanging up devices 14 and 14′ are provided with the initial yarn hanging up guides 15 and 15′ at the front ends of the other side of the lower end side. The yarn hanging up devices 14 and 14′ are stored in a storage position (FIG. 1) when they are stored and they can move from the storage position to the yarn hanging-up position when hanging up the yarn. In this case, the storage position is put between tracks a and a′ drawn by outer diameters of the bobbins that are fit to the projected bobbin holders respectively when the turret tables 3 and 3′ are rotating. On the other hand, the yarn hanging-up position is located beyond contact lines b and b′ of contact rollers 9 and 9′ and the outer diameter of the bobbin 6 rotating as contacting the contact rollers 9 and 9′ and at the yam hanging-up position, a plurality of the initial yarn hanging-up guides 15 and 15′ can move in a direction that they are separated each other.

The yarn hanging up devices 14 and 14′ are elongated from the front surface of the unit case 1 to the vicinity of the operational space in parallel with the bobbin holders 4, 5, 4′, and 5′ in a direction in parallel with the paper surface of FIGS. 2A and 2B, and the initial yarn hanging up guides 15 and 15′ can move along the yarn hanging up devices 14 and 14′ by a fluid cylinder (not illustrated).

Further, one end portions 18a and 18a′ of plates 18 and 18′ having L-shaped sections are axially attached to the upper part of the center part of the unit case 1, and the plates 18 and 18′ can swing around the one end portions 18a and 18a′. To the plates 18 and 18′, yarn guides 16 and 16′ for guiding the yarn into a yarn capture groove of the bobbin 6 and yarn path control guides 17 and 17′ for controlling the yarn path so as to prevent a predetermined amount of the winded yarn from falling from the end surface are attached.

Hereinafter, the operation of the initial hanging-up of the yarn of the device according to this embodiment will be described below. The yarn Y is hanged up on the supply rollers R1 and R2, and the yarn guide G while suctioning the yarn Y by the suction gun SG at the lower part of the spinneret of the spinning machine.

Subsequently, operating the shaft 11 shown in FIG. 11, as shown in FIG. 2A, the traversing support point guides 12 and 12′ of the traversing support point guide moving device 11 move to the yarn hanging-up operational side respectively (from the positions corresponding to the centers of the bobbins). In this case, according to the embodiment shown in FIGS. 5A, 5B and 5C, operating the shaft 39 together with the shaft 11, the traversing support point guides 12 and 12′ are made parallel with the shaft 11 as shown in FIG. 5C. Under this state, the yarn is put through the traversing support point guides 12 and 12′.

According to the device of the embodiments shown in FIGS. 4A and 4B, and FIGS. 5A, 5B and 5C, the operation may be carried out from one side of the block 31 and there is no necessity to largely move the suction gun SG. However, according to the embodiment shown in FIGS. 4A, 4B and 4C, as shown in FIG. 4B, it is necessary to alternately hang up the yarn on the traversing support point guides 12 and 12′ that are arranged in parallel at the back side and the front side of the bar 32 in order from the operational side (namely, the front end side of the bobbin holder). Therefore, particularly, when hanging up the yarn on the traversing support point guide 12′ at the back side, the traversing support point guide at the front side may be an obstacle. In addition, the yarn should be hanged up in a narrow space. Because of these factors, it takes a long time to hang up the yarn, and further, it is feared that the yarn is frequently cut due to the operational error when the yarn contacts the guide at the front side or the like.

On the contrary, according to the embodiment shown in FIGS. 5A, 5B and 5C, by providing a link mechanism inside of the traverse apparatus and pulling the shaft 39, the traversing support point guide is rotated by 90° to be arranged on a line with respect to the axial direction. A plurality of the traversing support point guides 12 and 12′ is arranged in parallel with a direction being orthogonal to the axial direction of the bobbin holders 4, 5, 4′, and 5′ during hanging-up of the yarn as shown in FIG. 5A so as to wind the yarn on a plurality of the bobbin holders 4, 5, 4′, and 5′ at the same time. Further, when hanging up the yarn on the traversing support point guides 12 and 12′, as shown in FIG. 5C, the bobbin holders 4, 5, 4′, and 5′ can be aligned in the axial direction of the bobbin holders 4, 5, 4′, and 5′ and this makes it possible to easily and rapidly hang up the yarn.

As shown in FIG. 2A, a plurality of the traversing support point guides 12 and 12′ is approximated each other in the axial direction of the bobbin holders 4, 5, 4′, and 5′ and as shown in FIG. 5C, a plurality of the traversing support point guides 12 and 12′ is aligned in the axial direction of the bobbin holders 4, 5, 4′, and 5′ so as to hang up the yarn on a plurality of the traversing support point guides 12 and 12′. Subsequently, moving the shafts 11 and 39, as shown in FIG. 2B and FIG. 5A, a plurality of the traversing support point guides 12 and 12′ is defined as a steady position. After contacting the bobbins 6 and 6′ fit to the bobbin holders 4 and 4′ with the pressure-contact rollers 9 and 9′, the initial yarn hanging up guides 15 and 15′ are moved to the initial yarn hanging-up position shown in FIG. 2A and FIG. 2B. Subsequently, after putting the yarn through the initial yarn hanging up guides 15 and 15′, as shown in FIG. 2B and FIG. 3, the suction gun SG is located at the lower part of the operational side of the winder.

FIG. 3 shows the state just before the initial hanging up of the yarn when the rotations of the bobbin holders 4 and 4′ and the rotations of the pressure-contact rollers 9 and 9′ are activated and the number of rotations reaches to a predetermined number. As shown in FIG. 3, by the fluid pressure cylinder (not illustrated), the initial yarn hanging up guides 15 and 15′ are moved to the positions in response to the yarn capture grooves formed on the bobbin 6 that is fit to the bobbin holders 4 and 4′.

Subsequently, swinging the yarn hanging up devices 14 and 14′ by the cylinder (not illustrated) and swinging the yarn hanging up devices 14 and 14′ to a position beyond the virtual lines b and b′ connecting the outer peripheries of the contact rollers 9 and 9′ and the outer peripheries of the bobbins 6 and 6′ by the fluid pressure cylinder (not illustrated), and engaging the yarn bent in the initial yarn hanging up guides 15 and 15′ into the yarn capture grooves that are formed on the bobbins 6 and 6′, the winding of the yarn is started.

Subsequently, in order to prevent the outer periphery of the bobbin that is fit to the bobbin holder from contacting the yarn hanging up devices 14 and 14′, the yarn hanging up devices 14 and 14′ are returned to the outside of the area of the tracks a and a′ drawn by the outer periphery of the bobbin that is fit to the bobbin holder.

The present invention is described in detail with reference to specific embodiments as above, however, it is obvious that various modifications will become possible for those skilled in the art without departing from the scope thereof.

According to the present invention, in the yarn winder for winding the yarn on a plurality of the bobbin holders, a plurality of the traversing support point guides is arranged at the upstream of the traverse devices in parallel with a direction being orthogonal to the axial direction of the bobbin holders, so that when hanging up the yarn on the traversing support point guide, the winder may be operated from one side of the block and it is no need to move the suction gun largely. This results in improvement of the operationality.

Further, according to the present invention, a plurality of the traversing support point guides is arranged in parallel with a direction being orthogonal to the axial direction of the bobbin holders during hanging-up of the yarn, and further, when hanging up the yarn on the traversing support point guides, the bobbin holders can be aligned in the axial direction of the bobbin holders. Therefore, particularly, when hanging up the yarn on the traversing support point guide at the back side, the traversing support point guide at the front side is not an obstacle and it is possible to hang up the yarn in a sufficiently large space. Therefore, it does not take long hours to hang up the yarn, there is no operational error when the yarn contacts the guide at the front side or the like, and the generation rate of yarn cut is remarkably decreased.

Furthermore, according to the present invention, when hanging up the yarn on the traversing support point guide, the traverse apparatus of the yarn is provided, in which a plurality of the traversing support point guides can approach each other in the axial direction of the bobbin holder when hanging up the yarn on the traversing support point guides, and this makes the yarn hanging-up operation easier.

Particularly, according to the embodiment, the traversing support point guide is rotated by 90° to be arranged on a line, and thereby, the traversing support point guide at the front side is not an obstacle when hanging up the yarn and it is possible to shorten hours to hang up the yarn and to decrease the operational errors.

It will be appreciated by those skilled in the art that changes could be made to the embodiments described above without departing from the broad inventive concept thereof. It is understood, therefore, that this invention is not limited to the particular embodiments disclosed, but it is intended to cover modifications within the spirit and scope of the present invention as defined by the appended claims.

Claims

1. A traverse apparatus of a yarn in a yarn winder for winding the yarn on a plurality of bobbin holders at the same time,

wherein a plurality of traversing support point guides is arranged in parallel to a direction that is orthogonal to an axial direction of a bobbin holder at an upstream position of traverse devices.

2. The traverse apparatus of a yarn according to claim 1,

wherein the plurality of traversing support point guides is arranged in parallel to the direction that is orthogonal to the axial direction of the bobbin holder during hanging up of the yarn so as to wind the thread on the plural bobbin holders at the same time, and the plurality of traversing support point guides can be aligned in the axial direction of the bobbin holder when hanging up the yarn on the traversing support point guides.

3. The traverse apparatus of a yarn according to claim 1,

wherein the plurality of the traversing support point guides can approach each other in the axial direction of the bobbin holder when hanging up the yarn on the traversing support point guide.

4. The traverse apparatus of a yarn according to claim 2, wherein the plurality of the traversing support point guides can approach each other in the axial direction of the bobbin holder when hanging up the yarn on the traversing support point guide.