JP4990681B2 - Yarn winding machine - Google Patents

Description

  The present invention relates to a yarn winder that winds continuously supplied yarn.

  2. Description of the Related Art Conventionally, a yarn winding machine that winds a yarn continuously supplied from a spinning machine or the like around a bobbin attached to a bobbin holder is known. Such a yarn winder is a contact roller that applies a predetermined contact pressure to the package formed on the bobbin by rotating while contacting the yarn layer wound on the bobbin in a state parallel to the bobbin holder. Is generally provided.

  The contact roller is in contact with the package according to the winding thickness of the package so that a constant contact pressure can be applied to the package even if the thread is wound around the bobbin and the diameter of the package increases. It is configured to move up and down. For example, in the yarn winding machine described in Patent Document 1, a contact roller is attached to a slide box that can be raised and lowered with respect to a machine base frame via a swing arm. Then, when the swing arm is swing-driven by the air cylinder, the contact roller provided at the free end of the swing arm moves up and down with respect to the package formed on the bobbin. Yes.

JP 2002-338141 A

  However, in the configuration of the conventional yarn winding machine as described in Patent Document 1, it is easy to rattle when the contact roller moves in the vertical direction. Therefore, it is difficult to smoothly move the contact roller up and down according to the package thickness, and there is a problem that the contact pressure applied to the package varies.

  An object of the present invention is to provide a yarn winding machine that can smoothly move a contact roller according to the winding thickness of a package and can suppress variation in contact pressure applied to the package. It is.

Means for Solving the Problems and Effects of the Invention

A yarn winding machine according to a first aspect of the invention is supported by a main body frame, a bobbin holder to which a bobbin is mounted, and a support that is supported by the main body frame so as to be movable toward and away from the bobbin holder. A frame, a traverse device attached to the support frame and traversing the yarn wound around the bobbin, and arranged in parallel with the bobbin holder, and the yarn is wound around the outer surface of the bobbin or the bobbin. A contact roller that rotates in contact with the outer peripheral surface of the package formed by the above-described structure, and is provided on the support frame so as to be movable in a direction in which the bobbin holder comes into contact with and away from the bobbin holder, and the contact roller can be rotated. supporting on the roller carrier, wherein the roller carrier a guide unit that linearly guides the direction approaching or separating with respect to the bobbin holder with respect to the support frame Equipped with a,
The guide unit has a first V-groove having a substantially V-shaped cross section extending in a direction for guiding the roller support, and guides the roller support with a first guide member fixed to the support frame. A second guide member having a second V groove having a substantially V-shaped cross section extending in a direction to be fixed, and being fixed to the roller support in a state where the second V groove faces the first V groove; A plurality of cylindrical rollers rotatably disposed between the first V groove of the guide member and the second V groove of the second guide member;
The plurality of rollers are in contact with both the first V-groove and the second V-groove at two positions on the outer side surface that are symmetrical with respect to the rotation axis, and the axial center direction between adjacent rollers is They are arranged so as to be orthogonal to each other.

  According to the configuration of the present invention, a plurality of cylindrical rollers are arranged between adjacent rollers between the first guide member fixed to the support frame and the second guide member fixed to the roller support. This is a so-called cross-roller type guide unit that is arranged so that its center direction (rotational axis direction) is orthogonal to each other. Therefore, since the displacement (rattle) of the roller support relative to the support frame in the direction orthogonal to the moving direction of the support frame is regulated by two types of rollers, the contact roller is the support frame, and thus the bobbin holder. It becomes difficult to incline against. Accordingly, it is possible to move the contact roller in a direction in which the contact roller is in contact with or separated from the bobbin holder while the parallel relationship between the contact roller and the bobbin holder is strictly maintained. Further, by adopting the guide unit of the present invention, the movement resistance of the roller support (contact roller) with respect to the support frame is reduced, and the contact roller can be smoothly moved with respect to the support frame.

  In addition, since the roller support is supported by the support frame so as to be movable in a direction in which the roller support moves toward and away from the bobbin holder, the moving distance of the roller support is restricted by the length of the support frame. However, in the present invention, since the roller support is supported by a highly rigid cross roller type guide unit, the movement resistance of the roller support is small while maintaining the parallel relationship between the contact roller and the bobbin holder strictly. In the state, it is possible to move the roller support within a limited distance.

  The yarn winding machine according to a second aspect is characterized in that, in the first aspect, the guide units are respectively provided at both ends of the roller support in the axial direction of the contact roller. Is.

  According to this configuration, it is possible to smoothly move the contact roller in a direction in which the contact roller comes in contact with and separates from the bobbin holder while maintaining the parallel relationship between the contact roller and the bobbin holder more strictly.

  A yarn winding machine according to a third invention is characterized in that, in the second invention, two sets of the guide units are arranged adjacent to each other at both ends of the roller support. It is.

  As described above, two sets of guide units having sufficiently high rigidity are disposed adjacent to each other at both end portions of the roller support, so that rigidity is further increased and elastic deformation of the guide unit is further suppressed. The Accordingly, the displacement of the contact roller in the horizontal direction orthogonal to the moving direction is more reliably prevented.

  Embodiments of the present invention will be described. FIG. 1 is a side view of the yarn winder of the present embodiment, and FIG. 2 is a front view of the yarn winder. As shown in FIG. 1, the yarn winding machine 1 is continuously supplied with a plurality of (six in this embodiment) yarns Y from a spinning machine (not shown). The yarn winder 1 is configured to wind a plurality of yarns Y supplied from a spinning machine around a plurality of bobbins 20 to form a plurality of packages 21.

  As shown in FIGS. 1 and 2, the yarn winding machine 1 includes a main body frame 10, an elevating frame 11 provided on the main body frame 10 so as to be movable in the vertical direction (movable up and down), and a main body frame 10. A disc-shaped turret 12 provided rotatably, two bobbin holders 13 on which a plurality of bobbins 20 are mounted while being supported by the main body frame 10 via the turret 12, and a thread wound around the bobbins 20 The traverse device 14 traversing Y and the contact roller 15 that contacts the bobbin 20 mounted on the bobbin holder 13 at the winding position P1 (see FIG. 2) are provided.

  The disc-shaped turret 12 is rotatably provided on the main body frame 10 in a posture parallel to the vertical plane of the main body frame 10. Two bobbin holders 13 extending in a horizontal direction perpendicular to the turret 12 are rotatably provided at two positions symmetrical to each other with respect to the rotation center of the turret 12. Further, these two bobbin holders 13 rotate integrally with the turret 12. As shown in FIG. 1, a plurality (six in this embodiment) of bobbins 20 are mounted on the two bobbin holders 13 side by side in the axial direction of the bobbin holder 13.

  The turret 12 is rotationally driven by a motor (not shown). As the turret 12 rotates, the two bobbin holders 13 are point-symmetric with respect to the winding position P1 that contacts the contact roller 15 and winds the yarn Y around the bobbin 20, and the winding position P1 and the rotation center of the turret 12. It can move over the standby position P2, which is a position. When the fully wound package 21 is formed on the bobbin 20 mounted on the bobbin holder 13 at the winding position P1, the bobbin holder 13 positioned at the winding position P1 and the bobbin holder 13 positioned at the standby position P2 are switched. .

  The two bobbin holders 13 supported by the turret 12 are each driven to rotate by a motor (not shown). When the bobbin holder 13 at the winding position P1 rotates, the plurality of yarns Y are wound around the plurality of bobbins 20 attached to the bobbin holder 13, respectively.

  The elevating frame 11 (support frame body) is a long frame extending in the axial direction of the bobbin holder 13. The lifting frame 11 is supported by the main body frame 10 in a posture parallel to the bobbin holder 13 so as to be movable (movable up and down) in the vertical direction (direction approaching and separating from the bobbin holder 13) at the base end portion in the longitudinal direction. . More specifically, as shown in FIG. 2, the longitudinal base end portion of the elevating frame 11 is supported by two guide shafts 26 fixed to the main body frame 10 so as to be movable in the vertical direction. Further, the lifting frame 11 is driven in the vertical direction by a lifting mechanism 28 including a lifting drive motor 27. The yarn winding machine 1 having such a configuration is particularly suitable for winding the yarn Y while applying a relatively low contact pressure to the package 21.

  As shown in FIG. 2, the lifting frame 11 includes a traverse device 14. The traverse device 14 includes a plurality of traverse guides 14a respectively corresponding to the plurality of bobbins 20 mounted on the bobbin holder 13 at the winding position P1. With the plurality of yarns Y hung on the plurality of traverse guides 14a, the traverse device 14 reciprocates the plurality of traverse guides 14a in a predetermined traverse range with respect to the axial direction of the bobbin holder 13 (the vertical direction in FIG. 2). By moving, the plurality of yarns Y are wound around the corresponding bobbins 20 while traversing each other.

  A support plate 22 (roller support) that supports the contact roller 15 is connected to the elevating frame 11. More specifically, the support plate 22 is elongated in the longitudinal direction of the lifting frame 11 and moves in the vertical direction with respect to the lifting frame 11 via guide units 25 provided at both ends in the longitudinal direction. Connected as possible. Further, two pivotal support portions 22 a are provided at both ends in the longitudinal direction of the support plate 22.

  As shown in FIG. 1, the contact roller 15 is a cylindrical body having substantially the same length as the bobbin holder 13, and can be rotated by the two pivot portions 22 a of the support plate 22 described above in a state parallel to the bobbin holder 13. It is supported. Further, the contact roller 15 can contact all the bobbins 20 mounted on the bobbin holder 13 at the winding position P <b> 1 or the outer peripheral surface of the package 21 formed on the bobbin 20. The contact roller 15 rotates while applying a predetermined contact pressure to the package 21 when winding the yarn around the bobbin 20 to adjust the shape of the package 21. Further, the support plate 22 and the contact roller 15 are guided by the guide unit 25, and are moved up and down in a direction approaching the bobbin 20 at the winding position P1 (downward direction) and a direction away from the bobbin 20 (upward direction). 11 relative position can be changed.

  Here, in order to reduce the variation of the winding diameter in the axial direction of the package 21 and form the package 21 with higher quality, the contact roller 15 always has a uniform contact pressure with respect to the package 21 in the axial direction. Is required. For this purpose, the guide unit 25 that guides the support plate 22 (contact roller 15) in the vertical direction has (1) contact to maintain the parallel relationship between the contact roller 15 and the bobbin holder 13 (bobbin 20) strictly. Support plate so that the horizontal displacement perpendicular to the moving direction can be reliably regulated when the roller 15 moves in the vertical direction, and (2) the contact roller 15 can be raised more smoothly according to the winding thickness of the package 21. Both of the small movement resistance when 22 moves are calculated | required.

  The guide unit 25 of the present embodiment that can realize both the above-described (1) and (2) will be described in detail. In the present embodiment, as shown in FIG. 1, guide units 25 are provided at both ends in the longitudinal direction of the support plate 22. Further, two sets of guide units 25 are disposed adjacent to each of both ends of the support plate 22. That is, the support plate 22 is connected to the elevating frame 11 through four sets of guide units 25, two sets on each of both ends.

  FIG. 3 is an enlarged view of two sets of guide units 25 provided adjacent to each other at one end of the support plate 22. FIG. 4 is a perspective view of a set of guide units 25. 5A and 5B are horizontal sectional views of the guide unit 25. FIG.

  As shown in FIGS. 3 to 5, the guide unit 25 extends in the vertical direction (the direction in which the support plate 22 and the contact roller 15 are guided) and is fixed in the same vertical direction as the first guide member 30 fixed to the lifting frame 11. And a plurality of second guide members 31 that are fixed to the support plate 22 and arranged between the first guide member 30 and the second guide member 31 so as to be rotatable in the longitudinal direction (vertical direction) thereof. And a roller 32. That is, the guide unit 25 of the present embodiment is a so-called cross roller type guide unit.

  As shown in FIG. 3, a fixture 40 having a convex portion 40a extending in the vertical direction and two attachment portions 40b on both sides of the convex portion 40a is fixed to the elevating frame 11 with bolts at the convex portion 40a. . The first guide members 30 of the two sets of guide units 25 are fixed to the two attachment portions 40b of the fixture 40 with bolts. As shown in FIGS. 4 and 5, the first guide member 30 has a cross section that extends in the vertical direction over the entire length of the first guide member 30 on one side surface (the surface opposite to the convex portion 40 a in FIG. 3). A V-shaped first V groove 30a is formed.

  As shown in FIG. 3, the second guide members 31 of the two sets of guide units 25 are respectively fixed to the back surface of the support plate 22 (the surface opposite to the contact roller 15) with bolts. These two second guide members 31 are arranged so as to sandwich the two first guide members 30 fixed to the lifting frame 11 from the outside. As shown in FIG. 4, one side surface of the second guide member 31 (a surface facing the first guide member 30) has a second V having a V-shaped cross section extending in the vertical direction over the entire length of the second guide member 31. A groove 31a is formed. That is, in each of the two sets of left and right guide units 25 in FIG. 3, the first V groove 30 a of the first guide member 30 and the second V groove 31 a of the second guide member 31 face each other.

  As shown in FIGS. 4 and 5, a plurality of cylindrical rollers 32 are rotatably accommodated in a space formed by the first V groove 30a and the second V groove 31a facing each other. However, the plurality of rollers 32 are arranged such that the axial center direction (rotational axis direction) is orthogonal to each other between adjacent rollers. That is, the roller 32 (FIG. 5A) in which the rotation axis C1 is inclined 45 ° to the right with respect to the opposing direction (the vertical direction in FIG. 5) of both guide members 30, 31, and Rollers 32 (FIG. 5B) in which C2 is inclined 45 ° to the left are alternately arranged along the longitudinal direction of the first and second guide members 31 (see FIG. 4).

  A roller holder 33 is interposed between the first guide member 30 and the second guide member 31. The roller holder 33 has a plurality of through holes 33a and a plurality of holding claws 33b respectively corresponding to the plurality of through holes 33a. The plurality of rollers 32 are respectively prevented from coming off by a plurality of holding claws 33 b while being inserted into the plurality of through holes 33 a of the roller holder 33.

  The 1st guide member 30 and the 2nd guide member 31 are each assembled | attached to the raising / lowering frame 11 and the support plate 22 in the state in which the predetermined clamping load (preload) acted between both. Therefore, as shown in FIG. 5, the plurality of rollers 32 disposed between the guide members 30 and 31 are arranged at two positions (A and B) symmetrical with respect to the rotation axes C1 and C2 on their outer surfaces. It will be in the state which contacted both the 1st V groove | channel 30a and the 2nd V groove | channel 31a, respectively. Therefore, when relative movement occurs between the first guide member 30 and the second guide member 31, sliding between the guide members 30, 31 and the roller 32 hardly occurs, and each roller 32 has a rotating shaft. Rotates smoothly around C1 or C2. Therefore, the movement resistance between the support plate 22 (contact roller 15) and the lifting frame 11 is only the rolling resistance of the roller 32, and the movement resistance becomes very small.

  Further, since the roller 32 is in contact with both the first V-groove 30a and the second V-groove 31a, the shift in the direction orthogonal to the axial direction is restricted. In addition, the axial direction is orthogonal between adjacent rollers 32. Therefore, the deviation between the guide members 30 and 31 in the direction of the rotation axis C1 in FIG. 5A is regulated by the roller 32 in FIG. 5B, and also in the direction of the rotation axis C2 in FIG. The deviation between the guide members 30 and 31 is regulated by the roller 32 in FIG. As a result, the displacement (rattle) of the support plate 22 with respect to the lifting frame 11 in the horizontal direction (direction parallel to the paper surface of FIG. 5) perpendicular to the moving direction is restricted. This reliably prevents the contact roller 15 supported by the support plate 22 from being tilted with respect to the lifting frame 11 and consequently the bobbin holder 13 supported by the main body frame 10.

  Furthermore, between the first guide member 30 and the second guide member 31, a large number of cylindrical rollers 32 are arranged in contact with both of the two V grooves 30a and 31a, so that one set of The rigidity of the guide unit 25 is very high. Moreover, as shown in FIG. 3, both the 1st guide member 30 and the 2nd guide member 31 are being fixed with the volt | bolt not only in those longitudinal direction both ends but the longitudinal direction middle part. Therefore, even if an external force or an impact is applied to the guide unit 25 during winding, the first guide member 30 and the second guide member 31 are not easily elastically deformed in the horizontal direction and are not easily bent. Also from this point, the displacement of the contact roller 15 supported by the support plate 22 is reliably suppressed.

  In addition to these, in this embodiment, as shown in FIG. 1, guide units 25 are respectively provided at both ends of the support plate 22. Therefore, the contact roller 15 can be smoothly moved in the vertical direction while maintaining the parallel relationship of the contact roller 15 with respect to the bobbin holder 13 more strictly.

  Further, as shown in FIG. 3, two sets of guide units 25 having sufficiently high rigidity are disposed adjacent to both ends of the support plate 22 as shown in FIG. Therefore, the rigidity is further increased, and the elastic deformation of the guide unit 25 is further suppressed, and the displacement of the contact roller 15 in the horizontal direction due to the elastic deformation is reliably prevented.

  The embodiment of the present invention has been described above. However, the form to which the present invention can be applied is not limited to this, and various modifications can be made to the embodiment without departing from the spirit of the present invention. It is also possible to add.

  For example, the number of guide units 25 that guide the contact roller 15 in the vertical direction with respect to the lifting frame 11 can be appropriately changed according to the design conditions such as the length and weight of the contact roller 15 or the lifting height.

It is a side view of the yarn winding machine concerning the embodiment of the present invention. It is a front view of a yarn winder. It is an enlarged view of two sets of guide units provided adjacent to each other at one end of the support plate. It is a perspective view of a set of guide units. It is horizontal sectional drawing of the guide unit 25, (a) is sectional drawing containing the roller in which the axial center direction inclined to one side with respect to the opposing direction of a guide member, (b) is an axial center direction facing a guide member. It is sectional drawing containing the roller inclined in the reverse direction to (a) with respect to the direction.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Yarn winding machine 10 Main body frame 11 Lifting frame 13 Bobbin holder 14 Traverse device 15 Contact roller 20 Bobbin 21 Package 22 Support plate (roller support)
25 Guide unit 30 First guide member 30a First V groove 31 Second guide member 31a Second V groove 32 Roller

Claims (3)

A bobbin holder supported by the main body frame and mounted with a bobbin;
A support frame that is supported by the main body frame so as to be movable in a direction in which the bobbin holder is in contact with or separated from,
A traverse device mounted on the support frame and traversing the yarn wound around the bobbin;
A contact roller that is arranged in parallel with the bobbin holder and rotates in contact with an outer peripheral surface of the bobbin or an outer peripheral surface of a package formed by winding a thread around the bobbin;
A roller support that is provided on the support frame so as to be movable in a direction in which the bobbin holder is in contact with and separated from the bobbin holder, and that rotatably supports the contact roller;
A guide unit that linearly guides the roller support with respect to the support frame in a direction in contact with and away from the bobbin holder;
The guide unit is
A first guide member having a first V-groove having a substantially V-shaped cross section extending in a direction for guiding the roller support, and fixed to the support frame;
A second guide having a second V groove having a substantially V-shaped cross section extending in the direction of guiding the roller support, and being fixed to the roller support in a state where the second V groove faces the first V groove. Members,
A plurality of cylindrical rollers rotatably disposed between the first V groove of the first guide member and the second V groove of the second guide member;
The plurality of rollers are in contact with both the first V-groove and the second V-groove at two positions on the outer side surface that are symmetrical with respect to the rotation axis, and the axial center direction between adjacent rollers is A yarn winder characterized by being arranged so as to be orthogonal to each other.   The yarn winding machine according to claim 1, wherein the guide units are provided at both ends of the roller support in the axial direction of the contact roller. 3. The yarn winding machine according to claim 2, wherein two sets of the guide units are arranged adjacent to each other at both ends of the roller support.

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