JP6935243B2 - Thread winder - Google Patents

Description

The present invention relates to a bobbin winder provided with a contact roller that applies contact pressure to the package.

Patent Document 1 discloses a thread winder for winding a thread. Specifically, the thread winder extends along the front-rear direction and has a bobbin holder in which a plurality of bobbins are mounted side by side, a traverse device arranged above the bobbin holder and twilling a plurality of threads, and a bobbin holder and a traverse. A contact roller, which is arranged between the device and applies a contact pressure to a package formed by winding a thread on a plurality of bobbins, is provided. The contact roller extends in the front-rear direction and is rotatably supported by a roller support member. The roller support member rotatably supports both ends of the contact roller in the front-rear direction, and has two arm-shaped portions extending radially outward from the radial center of the contact roller (hereinafter referred to as support portions). )have. The two support portions are connected by a plate-shaped portion (hereinafter referred to as a plate-shaped portion) extending in the front-rear direction. When viewed from the front-rear direction, the plate-shaped portion overlaps with the support portion and is arranged at a position sandwiched between the bobbin holder and the traverse device.

DE102006001041A1

When the bobbin holder is lengthened in the front-rear direction in order to increase the number of bobbins that can be attached to the bobbin holder, the contact roller and the roller support member are also lengthened in the front-rear direction. As a result, the bending rigidity of the roller support member in the front-rear direction becomes small, and problems such as easy vibration due to the operation of the bobbin winder occur. Therefore, in order to increase the rigidity of the roller support member, it is conceivable to increase the area of the cross section of the plate-shaped portion orthogonal to the front-rear direction. However, as described above, the plate-like portion is arranged between the bobbin holder and the traverse device. Therefore, if it is attempted to increase the area of the cross section of the plate-shaped portion, the bobbin holder and the traverse device must be moved in order to secure the space, and there is a problem that the thread winder becomes large.

An object of the present invention is to improve the rigidity of the roller support member while suppressing the increase in size of the device.

The thread winder of the first invention is a bobbin holder in which a plurality of bobbins extending in a predetermined longitudinal direction and in which a plurality of threads are wound are mounted side by side in the longitudinal direction, and a traverse in which the plurality of threads are twilled. A contact roller that applies contact pressure to the device and a plurality of packages formed by winding the plurality of threads extending in the longitudinal direction and swung by the traverse device on the plurality of bobbins. And a roller support member that rotatably supports the contact roller, the roller support member rotatably supports at least both ends of the contact roller in the longitudinal direction, and the diameter of the contact roller. The bobbin holder and said The rigidity improving portion is provided in a region that does not overlap with the traverse device, and the size of the rigidity improving portion in a direction orthogonal to the extending direction of the support portion when viewed from the longitudinal direction is larger than that of the support portion. Is also characterized by having a large portion.

The contact roller applies contact pressure to the package formed by winding the twilled yarn around the bobbin, and is arranged in the vicinity of the bobbin holder and the traverse device. That is, the support portions that support both ends of the contact roller in the longitudinal direction are also arranged in the vicinity of the bobbin holder and the traverse device. In the present invention, the support portion is fixed, and the rigidity improving portion is provided in a region where the support portion does not overlap with the bobbin holder and the traverse device when viewed from the longitudinal direction. Further, the rigidity improving portion has a portion in which the size in the direction orthogonal to the extending direction of the supporting portion is larger than that of the supporting portion when viewed from the longitudinal direction. Such a rigidity improving portion improves the bending rigidity of the roller support member in the longitudinal direction. Therefore, it is possible to improve the bending rigidity of the roller support member while avoiding interference with the bobbin holder and the traverse device. Therefore, it is possible to improve the rigidity of the roller support member while suppressing the increase in size of the device.

In the thread winder of the second invention, in the first invention, the rigidity improving portion is provided in a region where at least a part of the rigidity improving portion does not overlap with the supporting portion when viewed from the longitudinal direction. It is characterized by.

When the rigidity improving portion is arranged in the area overlapping the support portion when viewed from the longitudinal direction, the portion is arranged at a position sandwiched between the contact roller and the traverse device, so that the portion is orthogonal to the longitudinal direction. It is difficult to increase the area. In the present invention, the cross-sectional area can be increased in the portion of the rigidity improving portion that does not overlap with the supporting portion when viewed from the longitudinal direction, and the rigidity of the roller support member can be further improved.

The thread winder of the third invention is characterized in that, in the first or second invention, the support portion has a shape extending in a rod shape or a plate shape in the radial direction.

In the present invention, a space is formed in a region surrounded by the contact roller, the support portion, and the rigidity improving portion. Even if the support portion has a shape extending in a rod shape or a plate shape in the radial direction, the rigidity of the roller support member can be improved by the rigidity improving portion, so that the space can be improved while improving the rigidity of the roller support member. Other members and the like can be arranged in the device, and the device can be made compact.

In any one of the first to third inventions, the thread winder of the fourth invention includes a frame body extending in the longitudinal direction and supporting the roller support member, and the rigidity improving portion in the longitudinal direction. It is characterized in that at least a part of the cross sections orthogonal to the longitudinal direction has a shape that at least partially surrounds the cross section orthogonal to the longitudinal direction of the frame body.

The larger the area of the cross section orthogonal to the longitudinal direction of the rigidity improving portion, the higher the rigidity of the roller support member. However, if the area of the cross section is simply increased, there is a possibility that the rigidity improving portion and other members may interfere with each other, and the device may have to be increased in size. In the present invention, at least a part of the rigidity improving portion has a shape in which a cross section orthogonal to the longitudinal direction at least partially surrounds the frame body. In other words, the rigidity improving portion shares a part of the space in which the frame body is arranged with the frame body. As a result, the area of the cross section can be increased while suppressing the increase in size of the device.

In the fourth invention, in the fourth invention, at least a part of the cross section of the rigidity improving portion in the longitudinal direction orthogonal to the longitudinal direction is orthogonal to the longitudinal direction of the frame body. It is characterized by having a shape that completely surrounds a cross section.

In the present invention, at least a part of the rigidity improving portion has a cross section orthogonal to the longitudinal direction completely surrounding the frame, so that the rigidity of the rigidity improving portion is significantly increased. Therefore, the rigidity of the roller support member can be dramatically improved while suppressing the increase in size of the device.

The thread winder of the sixth invention is characterized in that, in the fifth invention, the rigidity improving portion has a tubular shape extending in the longitudinal direction.

In the present invention, the rigidity improving portion has a tubular shape extending in the longitudinal direction, and the cross section orthogonal to the longitudinal direction completely surrounds the frame in the entire rigidity improving portion. Therefore, the rigidity of the roller support member can be further improved.

In any of the fourth to sixth inventions, the thread winder of the seventh invention allows the roller support member to swing around the frame body about a swing shaft extending along the longitudinal direction. It is characterized by being supported.

In the present invention, the roller support member is supported so as to be swingable. That is, it is not a configuration in which the roller support member and the entire contact roller move. Therefore, it is not necessary to secure a space for moving the roller support member or the like, or to provide a guide member or the like for guiding the roller support member, and it is possible to suppress an increase in the size of the device.

In the seventh invention, the thread winder of the eighth invention has the frame body having a polygonal shape when viewed from the longitudinal direction, and the swing shaft having the frame when viewed from the longitudinal direction. It is characterized in that it is provided in a fixed portion fixed to a surface other than the surface closest to the contact roller among the surfaces forming the outer peripheral surface of the body.

In a configuration in which at least a part of the rigidity improving portion surrounds the frame at least partially and the roller support member is swingably supported by the frame, if the swing angle of the roller support member is large, the rigidity is improved. There is a risk that the part and the frame will easily interfere with each other. In the present invention, the swing shaft is provided on a fixed portion fixed to a surface of the frame body other than the surface closest to the contact roller. Therefore, the swing shaft can be arranged so that the distance between the swing shaft and the rotation shaft of the contact roller is large, so that the swing width of the contact roller is large even if the swing angle of the roller support member is small. Can be kept. Further, since the swing angle of the roller support member when the contact roller swings becomes small, it is possible to avoid interference between the rigidity improving portion and the frame body.

In the seventh invention, the thread winder of the ninth invention has the frame body having an upper surface, and the swing shaft provided in the fixing portion fixed to the upper surface. It is a feature.

In the present invention, the swing shaft is provided on a fixed portion fixed to the upper surface of the frame body. That is, since the downward force acting on the frame body due to the weight of the roller support member is received by the upper surface, a stable structure can be obtained.

The thread winder of the tenth invention is characterized in that, in any one of the seventh to ninth inventions, the frame is rectangular when viewed from the longitudinal direction.

According to the present invention, since the frame has a square columnar shape, processing at the time of manufacturing can be facilitated.

It is a side view of the take-back device which has the thread winder which concerns on this embodiment. It is a front view of a thread winder. It is a perspective view of the front side part of a roller support member and its periphery. It is a top view of a roller support member and its periphery. (A) is a cross-sectional view taken along the line V (a) -V (a) of FIG. 4, and FIG. 4B is a cross-sectional view taken along the line V (b) -V (b) of FIG. It is explanatory drawing which shows the swing of a contact roller. It is a perspective view of the front side part of the roller support member which concerns on a modification, and its periphery. It is a perspective view of the front side part of the roller support member which concerns on another modification, and its periphery. It is sectional drawing of the roller support member and its periphery which concerns on still another modification.

Next, an embodiment of the present invention will be described with reference to FIGS. 1 to 6.

(Outline configuration of take-back device)
FIG. 1 is a side view of a take-up device 1 having a bobbin winder 4 (details will be described later) according to the present embodiment. Hereinafter, the left-right direction of the paper surface of FIG. 1 is referred to as the front-back direction (longitudinal direction of the present invention). In addition, the direction in which gravity acts is the vertical direction, and the direction orthogonal to the front-rear direction and the vertical direction (the direction perpendicular to the paper surface) is the left-right direction.

The take-up device 1 winds the first godet roller 11, the second godet roller 12, the thread regulation guide 16 for picking up the yarn Y spun from the spinning device 3 and the taken-up yarn Y on a plurality of bobbins B. A thread winder 4 for forming the package P is provided.

The first godet roller 11 is a roller whose axial direction is substantially parallel to the left-right direction, and is arranged above the front end portion of the thread winder 4. The first godet roller 11 is rotationally driven by a motor (not shown). The second godet roller 12 is a roller whose axial direction is substantially parallel to the left-right direction, and is arranged above and behind the first godet roller 11. The second godet roller 12 is rotationally driven by a motor (not shown).

The second godet roller 12 is movably supported by the guide rail 14. The guide rail 14 extends diagonally upward and rearward. The second godet roller 12 is configured to be movable along the guide rail 14 by a pulley pair (not shown), a belt, a drive motor, or the like. As a result, the second godet roller 12 can be moved between the position when the thread Y is wound and the position when the thread hooking work is performed, which is arranged close to the first godet roller 11. There is. In FIG. 1, the position of the second godet roller 12 when the thread Y is wound is represented by a solid line, and the position of the second godet roller 12 when the thread hooking operation is performed is represented by a alternate long and short dash line.

The thread regulation guide 16 is arranged above the first godet roller 11. The thread regulation guide 16 is, for example, a known comb-shaped thread guide for defining the distance between adjacent threads Y at a predetermined value when a plurality of threads Y are hung. ..

(Peg winder)
Next, the thread winder 4 will be described with reference to FIGS. 1 and 2. FIG. 2 is a front view of the bobbin winder 4. The bobbin winder 4 includes a machine base 20, a plurality of fulcrum guides 21, a traverse device 22, a turret 23, two bobbin holders 24, a contact roller 25, a roller support member 26, a frame body 27, and the like. Have.

The machine base 20 is a member erected at the rear of the bobbin winder 4. A turret 23, a frame body 27, and the like are supported on the machine base 20.

The plurality of fulcrum guides 21 are individually provided for the plurality of threads Y and are arranged in the front-rear direction. The plurality of fulcrum guides 21 serve as fulcrums when each of the plurality of threads Y is twilled by hanging the plurality of threads Y respectively.

The traverse device 22 is for swinging a plurality of threads Y, respectively. The traverse device 22 is attached to a rib 41 described later, and is arranged above the contact roller 25. The traverse device 22 has a plurality of traverse guides 28. The plurality of traverse guides 28 are individually provided for the plurality of threads Y and are arranged in the front-rear direction. Each traverse guide 28 is driven by a traverse motor (not shown) and reciprocates in the front-rear direction. Each thread Y is twilled by each traverse guide 28 with each fulcrum guide 21 as a fulcrum.

The turret 23 is a disk-shaped member whose axial direction is substantially parallel to the front-rear direction, and is rotatably supported by the machine base 20. The turret 23 is rotationally driven by a turret motor (not shown). The turret 23 cantileverly supports the two bobbin holders 24 and moves the two bobbin holders 24 by rotating around a rotation axis substantially parallel to the front-rear direction. As a result, in the thread winder 4, the positions of the two bobbin holders 24 can be exchanged, and while the bobbin B mounted on one of the bobbin holders 24 is winding the thread Y, the thread Y is wound. It is possible to replace the bobbin B with respect to the other bobbin holder 24. Further, the turret 23 is configured to be rotatable as the amount of wound yarn Y increases when the yarn is wound on the bobbin B (see the solid line arrow in FIG. 2).

The two bobbin holders 24 are for mounting a plurality of bobbins B on each.
Each of the two bobbin holders 24 is rotatably supported by the upper end and the lower end of the turret 23 supported by the machine base 20, and extends forward from the turret 23. In other words, the two bobbin holders 24 are cantilevered and supported by the machine base 20 arranged on the rear side. The axial direction of the two bobbin holders 24 is substantially parallel to the front-rear direction.

A plurality of bobbins B individually provided for the plurality of threads Y are mounted on each bobbin holder 24 side by side in the front-rear direction. The number of bobbins B mounted on one bobbin holder 24 is, for example, 16. Further, the two bobbin holders 24 are rotationally driven by individual take-up motors (not shown).

The contact roller 25 is a roller whose axial direction is substantially parallel to the front-rear direction, and is arranged above the upper bobbin holder 24 and below the traverse device 22. The contact roller 25 contacts the surfaces of the plurality of packages P supported by the upper bobbin holder 24 to apply contact pressure to the surfaces of the plurality of packages P being wound to adjust the shape of each package P. .. In the present embodiment, the contact roller 25 is a so-called swing arm type contact roller that is swingably supported by the frame body 27 via a roller support member 26, as will be described later.

The roller support member 26 is a member for rotatably supporting the contact roller 25. The roller support member 26 extends in the front-rear direction. Details of the roller support member 26 will be described later.

The frame body 27 is a columnar member extending in the front-rear direction, and is fixed to the upper part of the machine base 20. A roller support member 26 is swingably supported on the frame body 27. The details of the frame body 27 will be described later.

In the thread winder 4 having the above configuration, when the upper bobbin holder 24 is rotationally driven, the thread Y twilled by the traverse guide 28 is wound around the bobbin B to form the package P. While the package P is formed, the contact roller 25 contacts the surface of the package P to apply a contact pressure, so that the shape of the package P is adjusted. The turret 23 rotates in the direction of the solid arrow in FIG. 2 as the diameter of the package P increases (the package P winds up and thickens) as the thread Y is wound around the bobbin B. As a result, the distance between the bobbin holder 24 on which the bobbin B around which the thread Y is wound is mounted and the contact roller 25 increases. Since the contact roller 25 is swingably supported by the frame body 27, the contact roller 25 swings following the movements of the bobbin holder 24 and the package P (see the broken line arrow in FIG. 2). As a result, the contact between the contact roller 25 and the package P is maintained.

Here, in recent years, in order to increase the number of bobbins B that can be attached to the bobbin holder 24 at one time from the viewpoint of production efficiency, the bobbin holder 24 tends to be made longer in the front-rear direction. Along with this, the contact roller 25 and the roller support member 26 are also lengthened in the front-rear direction. Then, the bending rigidity of the roller support member 26 becomes small, and there arises a problem that the roller support member 26 tends to vibrate due to the operation of the bobbin winder 4. Therefore, in order to increase the flexural rigidity of the roller support member 26, it is conceivable to increase the area of the cross section of the roller support member 26 orthogonal to the front-rear direction. However, if the area of the cross section is to be increased as it is, the bobbin holder 24 and the traverse device 22 must be moved in order to secure the space, and there is a problem that the thread winder 4 becomes large. Therefore, in the present embodiment, the roller support member 26 and the frame body 27 have the following configurations.

(Detailed configuration of roller support member and frame)
The detailed configuration of the roller support member 26 and the frame body 27 will be described with reference to FIGS. 3 to 6. FIG. 3 is a perspective view of the front side portion of the roller support member 26 and its periphery. FIG. 4 is a plan view of the roller support member 26 and its surroundings. 5 (a) is a cross-sectional view taken along the line V (a)-V (a) of FIG. 5 (b) is a cross-sectional view taken along the line V (b) -V (b) of FIG. FIG. 6 is an explanatory view showing the swing of the contact roller 25.

First, the frame body 27 will be described. The frame body 27 has a substantially rectangular shape when viewed from the front-rear direction, and is a hollow square columnar member extending in the front-rear direction. When viewed from the front-rear direction, the size of the outer peripheral portion of the frame body 27 is, for example, about 150 mm square. The frame body 27 has an upper surface 43 (see FIG. 5), and fixed portions 44 provided with swing shafts 45, which will be described later, are fixed in the vicinity of both ends of the upper surface 43 in the front-rear direction.

Next, the roller support member 26 will be described. As described above, the roller support member 26 is for rotatably supporting the contact roller 25. As shown in FIGS. 3 to 5, the roller support member 26 has an arm portion 31 (support portion of the present invention) and a rigidity improving portion 32.

The arm portions 31 (arm portions 31F and 31R) are members that support both ends of the contact roller 25 in the front-rear direction. The arm portions 31F and 31R are plate-shaped members having a shape extending diagonally upward to the left (outside in the radial direction) from the central portion in the radial direction of the contact roller 25. The arm portion 31F rotatably supports the front end portion of the contact roller 25, and the arm portion 31R rotatably supports the rear end portion of the contact roller 25. As a result, the contact roller 25 can rotate about the rotation shaft 46 (see FIG. 5). When viewed from the front-rear direction, the arm portions 31F and 31R increase in width from the central portion in the radial direction of the contact roller 25 toward the outer side in the radial direction (see FIG. 5). The arm portions 31F and 31R are fixed to the rigidity improving portion 32 as described later.

The rigidity improving portion 32 is for improving the bending rigidity of the roller support member 26. The rigidity improving portion 32 is a member having a substantially tubular shape (see FIG. 3) extending in the front-rear direction. In the present embodiment, the rigidity improving portion 32 is composed of a member different from the two arm portions 31. As shown in FIG. 5, when viewed from the front-rear direction, the rigidity improving portion 32 has a hollow substantially rectangular shape, and the size of the outer peripheral portion thereof is, for example, about 230 mm square. Further, the outer peripheral portion of the rigidity improving portion 32 has a thickness of, for example, about 20 mm. That is, the size of the hollow region of the rigidity improving portion 32 is about 190 mm square, which is larger than the size of the frame body 27 (about 150 mm square) described above. As described above, the rigidity improving portion 32 has a shape in which the cross section orthogonal to the front-rear direction completely surrounds the cross section orthogonal to the front-rear direction of the frame body 27 as a whole.

In the lower portion of the right side surface portion of the rigidity improving portion 32, a rib 41 protruding diagonally downward to the right is formed over the entire length of the rigidity improving portion 32 in the front-rear direction. The rib 41 is for mounting the traverse device 22.

A radial outer portion of the arm portion 31F is fixed to the front end portion of the right side surface portion of the rigidity improving portion 32 by a plurality of fasteners 42 (see FIGS. 3 and 5A). Similarly, the radial outer portion of the arm portion 31R is fixed to the rear end portion of the right side surface portion of the rigidity improving portion 32. In this way, the two arm portions 31F and 31R are fixed to both ends of the rigidity improving portion 32 in the front-rear direction.

The rigidity improving portion 32 is arranged at a position surrounding the frame body 27 when viewed from the front-rear direction. In other words, the frame body 27 is housed inside the rigidity improving portion 32 when viewed from the front-rear direction. The gap between the rigidity improving portion 32 and the frame body 27 is about 20 mm. Further, the rigidity improving portion 32 is arranged obliquely upward to the left of the bobbin holder 24 and to the left of the traverse device 22 (see FIG. 5A). As described above, the rigidity improving portion 32 is provided in a region that does not overlap with the bobbin holder 24 and the traverse device 22 when viewed from the front-rear direction. That is, the rigidity improving portion 32 is arranged outside the region sandwiched between the bobbin holder 24 and the traverse device 22. When viewed from the front-rear direction, the rigidity improving portion 32 has a size in a direction orthogonal to the direction in which the arm portion 31 extends (extending direction in FIG. 5 (b)) (orthogonal direction in FIG. 5 (b)). It is larger than the arm portion 31. Further, when viewed from the front-rear direction, the rigidity improving portion 32, the arm portion 31F, and the arm portion 31R do not overlap each other except for the portions fixed to each other. In other words, when viewed from the front-rear direction, at least a part of the rigidity improving portion 32 does not overlap with the arm portions 31F and 31R.

As shown in FIGS. 3 to 5, the rigidity improving portion 32 is swingably supported by the frame body 27. The fixed portion 44 of the frame body 27 is provided with a swing shaft 45 extending in the front-rear direction, and the rigidity improving portion 32 (that is, the entire roller support member 26) is provided around the swing shaft 45. , It is swingably supported by the frame body 27. As a result, the contact roller 25 is swingably supported via the roller support member 26. The swing shaft 45 may have two shafts supporting both front and rear ends of the rigidity improving portion 32, respectively, and one shaft extends over the entire length of the rigidity improving portion 32 in the front-rear direction. Is also good.

In the roller support member 26 having the above configuration, the rigidity improving portion 32 is provided in a region that does not overlap with the bobbin holder 24 and the traverse device 22 when viewed from the front-rear direction. Therefore, the roller support member 26 can improve the flexural rigidity and the like by the rigidity improving portion 32 while avoiding interference with the bobbin holder 24 and the traverse device 22. Further, since the rigidity improving portion 32 has a cross-sectional shape that completely surrounds the frame body 27 as described above, a part of the space in which the frame body 27 is arranged is shared with the frame body 27, and the rigidity is high. Has.

Further, since the arm portions 31F and 31R are fixed to the front and rear ends of the rigidity improving portion 32, a space is formed in the area surrounded by the contact roller 25, the arm portions 31F and 31R and the rigidity improving portion 32, respectively. ing. A traverse device 22 is mounted on the rib 41 using a part of this space (see FIGS. 3 and 5 (a)).

Further, the fixing portion 44 provided with the swing shaft 45 is fixed to the upper surface 43. Therefore, the downward force acting on the frame body 27 due to the weight of the roller support member 26 is stably received by the upper surface 43. Further, as described below, the swing width of the contact roller 25 becomes large, and the roller support member 26 and the frame body 27 are less likely to interfere with each other. That is, as shown in FIG. 6A, if the fixing portion 44 is fixed to the right side surface closest to the contact roller 25 among the surfaces forming the outer peripheral surface of the frame body 27, the fixing portion 44 is fixed in the front-rear direction. The distance between the swing shaft 45 and the rotation shaft 46 of the contact roller 25 becomes smaller. Therefore, when the contact roller 25 swings, the swing angle of the roller support member 26 becomes large, and the rigidity improving portion 32 surrounding the frame body 27 and the frame body 27 may easily interfere with each other (FIG. 6). (See the two-dot chain line in (a)). In this respect, in the present embodiment, as shown in FIG. 6B, since the fixing portion 44 is fixed to a surface other than the right side surface, that is, the upper surface 43, the above distance is relatively large. Therefore, the swing width of the contact roller 25 with respect to the swing angle of the roller support member 26 becomes large (see the two-dot chain line in FIG. 6B). Further, since the swing angle of the roller support member 26 when the contact roller 25 swings becomes small, the rigidity improving portion 32 and the frame body 27 are less likely to interfere with each other.

As described above, the rigidity improving portion 32 is fixed to the radial outer portion of the arm portion 31 and is provided in a region that does not overlap with the bobbin holder 24 and the traverse device 22 when viewed from the front-rear direction. Further, the rigidity improving portion 32 has a portion in which the size in the direction orthogonal to the extending direction of the arm portion 31 is larger than that of the arm portion 31 when viewed from the front-rear direction. The rigidity improving portion 32 improves the bending rigidity of the roller support member 26 in the front-rear direction. Therefore, the bending rigidity of the roller support member 26 can be improved while avoiding interference with the bobbin holder 24 and the traverse device 22. Therefore, the rigidity of the roller support member 26 can be improved while suppressing the increase in size of the bobbin winder 4.

Further, when viewed from the front-rear direction, at least a part of the rigidity improving portion 32 is provided in a region that does not overlap with the arm portions 31F and 31R. In the portion provided in the above region, the cross-sectional area orthogonal to the front-rear direction of the rigidity improving portion 32 can be increased, and the rigidity of the roller support member 26 can be further improved.

Further, a space is formed in a region surrounded by the contact roller 25, the arm portions 31F and 31R, and the rigidity improving portion 32. Even if the arm portions 31F and 31R have a plate-like shape extending in the radial direction, the rigidity of the roller support member 26 can be improved by the rigidity improving portion 32, so that the rigidity of the roller support member 26 is improved. While doing so, other members such as the traverse device 22 can be arranged in the space, and the thread winder 4 can be made compact.

Further, the rigidity improving portion 32 has a tubular shape extending in the front-rear direction, and the cross section orthogonal to the front-rear direction completely surrounds the frame body in the entire rigidity improving portion 32. As described above, the rigidity improving portion 32 shares a part of the space in which the frame body 27 is arranged with the frame body 27, and has high rigidity. Therefore, the rigidity of the roller support member 26 can be dramatically improved while suppressing the increase in size of the device.

Further, the roller support member 26 is supported so as to be swingable. That is, the roller support member 26 and the contact roller 25 as a whole do not move. Therefore, it is not necessary to secure a space for moving the roller support member 26 or the like, or to provide a guide member or the like for guiding the roller support member 26, and it is possible to suppress an increase in the size of the device.

Further, the swing shaft 45 is provided on the fixing portion 44 fixed to the surface of the frame body 27 other than the surface closest to the contact roller 25 (in the present embodiment, the upper surface 43). Therefore, the swing shaft 45 can be arranged so that the distance between the swing shaft 45 and the rotation shaft 46 of the contact roller 25 is large, so that the contact roller 25 can be arranged even if the swing angle of the roller support member 26 is small. The swing width of the can be kept large. Further, since the swing angle of the roller support member 26 when the contact roller 25 swings becomes small, it is possible to avoid interference between the rigidity improving portion 32 and the frame body 27.

Further, the swing shaft 45 is provided on the fixing portion 44 fixed to the upper surface 43 of the frame body 27. That is, since the downward force acting on the frame body 27 due to the weight of the roller support member 26 is received by the upper surface 43, a stable structure can be obtained.

Further, since the frame body 27 has a square columnar shape, it can be easily processed at the time of manufacturing.

Next, a modified example in which the embodiment is modified will be described. However, those having the same configuration as that of the above-described embodiment are designated by the same reference numerals and the description thereof will be omitted as appropriate.

(1) In the above embodiment, it is assumed that the cross section orthogonal to the front-rear direction completely surrounds the frame body 27 in the entire rigidity improving portion 32, but the present invention is not limited to this. For example, as shown in FIG. 7, since the opening 47 is formed in the upper surface of the rigidity improving portion 32a of the roller support member 26a, the cross section of the roller support member 26a completely completes the frame body 27 in only a part of the rigidity improving portion 32a. It may be configured to be surrounded by. As described above, the cross section of at least a part of the rigidity improving portion 32a (for example, the front end portion in FIG. 6) has a shape that completely surrounds the frame body 27, so that the rigidity improving portion 32a is formed. Rigidity is greatly increased. Therefore, the rigidity of the roller support member 26a can be dramatically improved.

Further, by appropriately forming the opening 47, it is possible to reduce the weight while maintaining the rigidity of the roller support member 26a high, increase the resonance frequency of the roller support member 26a, and make it difficult for the roller support member 26a to vibrate. can do.

(2) Further, for example, as shown in FIG. 8, the rigidity improving portion 32b of the roller support member 26b does not have a lower surface portion (that is, the cross section is inverted U-shaped), and the frame body 27 It may be configured so as to partially enclose. Further, only a part of the rigidity improving portion 32b in the front-rear direction may have a shape that partially surrounds the frame body 27. In other words, at least a part of the cross sections of the rigidity improving portion 32 in the front-rear direction may have a shape that at least partially surrounds the frame body 27. Even in such a case, since the rigidity improving portion 32b shares a part of the space in which the frame body 27 is arranged with the frame body 27, it is possible to increase the area of the cross section while suppressing the increase in size of the device. can. In this modification, the rigidity improving portion 32b does not have a lower surface portion, but for example, a configuration that does not have a left side surface portion may be used.

(3) The shape of the rigidity improving portion is not limited to that described above. For example, as shown in FIG. 9A, the cross section of the rigidity improving portion 32c of the roller support member 26c may have a ring shape or the like. Alternatively, for example, as shown in FIG. 9B, the cross section of the rigidity improving portion 32d of the roller support member 26d has a solid rectangular shape and does not have to surround the frame body 27. That is, the rigidity improving portion may be arranged at a position where it does not overlap with the traverse device 22 and the bobbin holder 24 when viewed from the front-rear direction. At this time, as shown in FIG. 9B, the fixing portion 44 may be fixed to the right side surface of the frame body 27, that is, the surface closest to the contact roller 25 when viewed from the front-rear direction. Further, the rigidity improving portions 32c and 32d do not have to have the rib 41.

(4) The position of the fixing portion 44 is not limited to that described above. That is, the fixing portion 44 may be fixed to the lower surface, the left side surface, or the like of the frame body 27.

(5) In the above-described embodiments, the two arm portions 31 extending in a plate shape in the radial direction of the contact roller 25 are support portions that rotatably support the contact roller 25. Is not limited. The two arm portions may extend in a radial direction, for example, in a rod shape. Alternatively, for example, the two arm portions 31 may be connected by a plate-shaped portion (not shown) extending in the front-rear direction. In this case, the combination of the two arm portions 31 and the plate-shaped portion corresponds to the support portion of the present invention. That is, the support portion may extend in a direction other than the radial direction of the contact roller 25. The two arm portions 31 and the plate-shaped portion may be separate members, or may be integrally formed members.

In the above-described embodiments, the arm portions 31 rotatably support both ends of the contact roller 25 in the front-rear direction, but the present invention is not limited to this. Not only both end portions but also arm portions that support the central portion of the contact roller may be provided.

(6) In the above-described embodiments, the rigidity improving portion 32 and the arm portion 31 are separate members, but these may be integrally formed.

(7) The frame body 27 does not necessarily have to have a hollow substantially rectangular shape when viewed from the front-rear direction, and may have a hollow polygonal shape. Further, for example, it may have a solid circular shape or the like. That is, the frame does not necessarily have to have an upper surface.

(8) In the above-described embodiment, the contact roller 25 is arranged above the bobbin holder 24 and below the traverse device 22, but the present invention is not limited to this. For example, the contact roller 25 may have another positional relationship such as being arranged on the side of the bobbin holder 24.

(9) In the above-described embodiment, the rigidity improving portion 32 is arranged diagonally above the left of the bobbin holder 24 and to the left of the traverse device 22, but the present invention is not limited to this. For example, the present invention may be applied to a thread winder configured symmetrically with the thread winder 4 described above. That is, the rigidity improving portion 32 may be arranged obliquely upward to the right of the bobbin holder 24 and to the right of the traverse device 22.

(10) In relation to the modification of (9) above, the present invention may be applied to two spools that are symmetrically configured and arranged in the left-right direction. Alternatively, for example, as disclosed in Japanese Patent Application Laid-Open No. 2003-238031, an integrated thread winder including two turrets symmetrically configured with each other, two sets of bobbin holders, two contact rollers, and the like. The present invention may be applied to.

(11) In the above-described embodiment, the contact roller 25 is swingably supported by the frame body 27, but the present invention is not limited to this. For example, a thread winder provided with a so-called linear motion moving mechanism in which a support member supporting the contact roller 25 moves up and down while maintaining its posture (see, for example, Japanese Patent Application Laid-Open No. 2012-158436). The invention may be applied. Alternatively, the roller support member 26 does not necessarily have to be supported by the frame body 27, and may be configured to be directly attached to the machine base 20, for example.

4 Thread winder 20 Machine stand 22 Traverse device 24 Bobbin holder 25 Contact roller 26 Roller support member 27 Frame body 31 Arm part (support part)
32 Rigidity improving part 43 Top surface 44 Fixed part 45 Swinging shaft 46 Rotating shaft B Bobbin P Package Y thread

Claims (9)

A bobbin holder in which a plurality of bobbins extending in a predetermined longitudinal direction and in which a plurality of threads are wound are mounted side by side in the longitudinal direction, and a bobbin holder.
A traverse device that swings the plurality of threads, respectively.
A contact roller that applies contact pressure to a plurality of packages formed by winding the plurality of threads extending in the longitudinal direction and swung by the traverse device around the plurality of bobbins, respectively.
A roller support member that rotatably supports the contact roller is provided.
The roller support member is
A support portion that rotatably supports at least both ends of the contact roller in the longitudinal direction and extends at least outward from the radial center portion of the contact roller.
It has a shape extending in the longitudinal direction, has a rigidity improving portion provided in a region where the support portion is fixed and does not overlap with the bobbin holder and the traverse device when viewed from the longitudinal direction.
When viewed from the longitudinal direction, the support portion extends from the position of the center in the radial direction of the contact roller toward the rigidity improving portion in at least one direction, and is in any one of the at least certain directions. When is the extension direction
The rigidity improving portion has a portion in which the length in the orthogonal direction orthogonal to the extending direction is longer than the length in the orthogonal direction of the supporting portion when viewed from the longitudinal direction.
A frame body extending in the longitudinal direction and supporting the roller support member is provided.
It is characterized in that at least a part of the cross section orthogonal to the longitudinal direction of the rigidity improving portion in the longitudinal direction has a shape that at least partially surrounds the cross section orthogonal to the longitudinal direction of the frame body. Thread winder. The improved rigidity portion, when viewed from the longitudinal direction, at least partially, the yarn winding machine according to claim 1, characterized in that provided in the region which does not overlap with the supporting portion. The thread winder according to claim 1 or 2 , wherein the support portion has a shape extending in a rod shape or a plate shape in the radial direction. The claim is characterized in that at least a part of the cross section orthogonal to the longitudinal direction of the rigidity improving portion in the longitudinal direction has a shape completely surrounding the cross section orthogonal to the longitudinal direction of the frame body. Item 4. The thread winder according to any one of Items 1 to 3. The thread winder according to claim 4 , wherein the rigidity improving portion has a tubular shape extending in the longitudinal direction. The thread winder according to any one of claims 1 to 5 , wherein the roller support member is swingably supported by the frame body about a swing shaft extending along the longitudinal direction. .. The frame body has a polygonal shape when viewed from the longitudinal direction.
The swing shaft is
The claim is characterized in that the surface formed on the outer peripheral surface of the frame body when viewed from the longitudinal direction is provided on a fixed portion fixed to a surface other than the surface closest to the contact roller. The thread winder according to 6. The frame has an upper surface and has an upper surface.
The thread winder according to claim 6 , wherein the swing shaft is provided on a fixed portion fixed to the upper surface. The thread winder according to any one of claims 6 to 8 , wherein the frame body has a rectangular shape when viewed from the longitudinal direction.

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