JP5969768B2 - Long body rotation support device - Google Patents

Description

  The present invention relates to a rotation support device for a long body, and more particularly to a rotation support device for a long body that can prevent the long body from collapsing.

  Conventionally, a winding device capable of winding a long body has been widely used. Such a winding device is disclosed in Patent Documents 1 and 2, for example. The winding device of Patent Document 1 is provided on a rotating base that rotates via a motor, a plurality of displacement means that winds a long body by rotating together with the rotating base outside the rotating base, and the rotating base. And an interval changing means capable of adjusting the free end position of the displacement member, and a guide means provided on the proximal end side of the displacement means and capable of contacting the side end of the belt-like means to be wound. In this document, the free end of the displacement means is rotationally displaced in a direction away from the rotation base via the interval changing means, so that the displacement means in the wound long body (hereinafter referred to as “winding body”) The winding diameter on the base end side (hereinafter referred to as “base end side diameter”) is made smaller than the winding diameter on the free end side (hereinafter referred to as “free end side diameter”) of the displacement means, As a posture (hereinafter referred to as “different-diameter winding posture”) that causes the guide member to be biased toward the guide means side, the winding body can be prevented from being collapsed.

  The winding device of Patent Document 2 supports a rotary base that supports the winding body, guide means provided on the base end side of the rotary base, and the rotary base so that it can be displaced between a horizontal position and an inclined position. And a support means. In the same document, by tilting the rotating base by the supporting means and keeping the winding body in an inclined posture, the winding body can be shifted to the guide means side to prevent the winding body from being collapsed. .

JP 2008-201527 A JP 2008-189432 A

  However, in Patent Document 1, while the winding diameter of the long body is small, the different diameter winding posture can be maintained, but when the winding amount of the long body increases, the different diameter winding posture is maintained. It becomes impossible. This is due to the fact that the guide member is not displaced, so that the base end side diameter of the winding body cannot be kept smaller than the free end side diameter due to the expansion or contraction of the long body. For this reason, when the winding amount of a long body increases, there exists a problem that it will become easy to generate | occur | produce winding collapse.

  Here, in Patent Document 2, it is possible to prevent the winding body from collapsing, but in order to incline the guide means, the support means is also rotationally displaced by the rotation base, the motor that rotates the rotation base, and the like. Is required. For this reason, not only does the number of members to be displaced increase, the structure becomes complicated, but also the inconvenience of increasing the size of the entire apparatus is caused.

[Object of invention]
An object of the present invention is to provide a long-spindle rotation support device capable of simplifying the structure and suppressing collapse of the winding body.

In order to achieve the above object, the present invention provides a rotating base that is supported by a predetermined frame and that is relatively rotatable with respect to the frame with a base axis as a center of rotation, and one end on the rotating base side. Is supported rotatably, and is provided with a displacement means provided so that the other end thereof can be displaced in a direction approaching and separating from the base axis, and provided so as to be movable in the extending direction of the base axis, An interval changing means provided so that the displacement distance of the other end portion can be adjusted in a state in which the other end portion of the displacement means is in contact with a guide surface on which one side end of the wound long body can abut. A rotation support device that winds or unwinds the long body by directly or indirectly winding the long body on the displacement means by relative rotation of the rotation base.
The guide surface is an inclined surface that inclines in a direction from the other end portion to the one end portion of the displacement means as it is away from the base axis.
The other side end of the long body in the middle of winding before winding around the displacement means or the other side end of the long body in the middle of feeding after being fed from the displacement means The second urging means is provided, which is in contact with each other and can apply a force in a direction approaching the guide surface to the elongated body.

In the present invention, it is also preferable to employ a configuration in which a first urging unit capable of applying a force in a direction in which the other end of the displacing unit approaches the base axis by magnetism .

  According to the present invention, since the guide surface is an inclined surface that is inclined in the direction from the other end to the one end as the distance from the base axis increases, even if the winding amount of the long body increases, The irregular winding posture can be maintained, and the winding body can be prevented from collapsing. In addition, it is possible to eliminate the necessity of displacing the rotary base and the like, and it is possible to simplify the structure and make the entire apparatus compact.

  Furthermore, by providing the first urging means, it is possible to smoothly perform the rotational displacement of the displacement means by the interval changing means, and it is possible to prevent troubles in the work of extracting the winding body.

  Further, by providing the second urging means, it is possible to positively urge the elongated body toward the guide means, and it is possible to easily form the irregular winding posture.

The schematic side surface sectional view of the rotation support device concerning an embodiment. The front view of the said rotation support apparatus. Explanatory drawing of the displacement point of a displacement means.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
In the present specification and claims, unless otherwise specified, “upper”, “lower”, “left”, and “right” are used with reference to FIG.

  1 to 3, the rotation support device 10 includes a plate-like frame 11 positioned in a substantially vertical plane, and a rotation motor DM as a driving device provided on the back surface (left surface) side of the frame 11. The rotation base 12 is connected to the output shaft DM1 of the rotation motor DM and is rotatable, plate-shaped guide means 13 provided on the outer periphery of the rotation base 12, and one end portion 15A and the other end portion 15B. The one end portion 15 </ b> A includes four displacement means 15 supported at 90 ° intervals in the circumferential direction of the rotary base 12 via the guide means 13, and the interval changing means 16 supported on the rotary base 12. It is configured.

  The rotation base 12 includes a guide means support portion 12B and a distance change means support portion 12C formed by an external screw connected to the right side of the guide means support portion 12B, and a coupling provided on the left side of the guide means support portion 12B. It is connected to the output shaft DM1 of the rotation motor DM by CP. Thereby, the rotation base 12 can be rotated relative to the frame 11 around the base axis 12A by the operation of the rotation motor DM.

  The guide means 13 is formed in a substantially disc shape, and one side end (left end) of the elongated body BL to be wound comes into contact with the guide surface (right surface) 13A so as to align with the guide surface 13A. The long body BL can be wound up. The guide surface 13 is formed by an inclined surface that inclines in the direction from the other end 15B to the one end 15A of the displacement means 15 as it is away from the base axis 12A, that is, a substantially conical side surface that bulges to the right. Thus, in a cross-sectional view, the angle α is inclined to the left from the plane VF orthogonal to the base axis 12A.

  Each of the displacement means 15 is supported in such a manner that one end portion 15A is rotatably supported by the rotary shaft 25A at the bottom of the recess 28 of the guide means 13 and the other end portion 15B is spaced apart from the base axis 12A. A shaft 25 provided to be displaceable and a ball rotating body 26 provided on the other end 15B side of the shaft 25 and rotatably provided in contact with the outer peripheral surface of the interval changing means 16 are provided. The displacement means 15 is urged in a direction in which the other end 15B approaches the base axis 12A by a spring member 29 as a first urging means in the recess 28.

  The spacing changing means 16 is formed on the knob 31 that forms the right end side, the taper 32 that is continuous with the left end of the knob 31, and whose diameter decreases toward the left, and the outer peripheral surface of the taper 32. Receiving means 33 for receiving a part of the ball rotating body 26. Further, a female screw 16A that is screwed into the male screw 12C of the rotary base 12 is formed inside the gap changing means 16, and the gap changing means 16 is adjusted by adjusting the screwing amount of the gap changing means 16 with respect to the rotary base 12. The base axis 12A can move in the extending direction.

  The receiving means 33 is formed by a groove extending spirally on the outer peripheral surface of the taper portion 32, and the feed pitch in the left-right direction is the same as the feed pitch in the left-right direction of the male screw in the interval changing means support portion 12 C of the rotation base 12. Is set. The receiving means 33 is formed in an arc shape in cross section according to the shape of the other end 15B of the displacing means 15, that is, the ball rotating body 26, and the ball rotating body 26 and the receiving means 33 are in line contact along the arc. It has become. One receiving means 33 is formed for each displacement means 15, that is, four receiving means 33 are formed side by side in the tapered portion 32. At the right end of each receiving means 33, a movement restricting means 34 is formed. The movement restricting means 34 is formed by a recess having a shape along a spherical surface that receives the ball rotating body 26, and the depth thereof is set to be deeper than the groove depth of the receiving means 33 so that the ball rotating body 26 can be fitted therein. ing. When the ball rotating body 26 is fitted, the movement restricting means 34 maintains the fitted state unless an intentional external force is applied to the gap changing means 16, thereby rotating the gap changing means 16. It is possible to prevent the other end of each displacement means 15 from being inadvertently displaced.

  Here, the ball rotating body 26 and the interval changing means 16 can be kept attached by magnetism, that is, the force in the direction in which the other end portion 15B of the displacing means 15 approaches the base axis 12A can be given by magnetism. Is provided. As long as the ball rotating body 26 and the interval changing means 16 can be attached by magnetism, the member to be a magnet can be changed as appropriate. For example, the ball rotating body 26 is a magnet and the interval changing means 16 is iron, Conversely, the ball rotating body 26 may be made of iron, the interval changing means 16 may be made of a magnet, or both of them may be made of magnets. Moreover, you may make it the ball | bowl rotary body 26 exhibit magnetic force by comprising the shaft 25 with a magnet. Here, the first biasing means is constituted by any member that exhibits the above-described magnetic force.

  Further, the second urging means 36 is provided on the front surface (right surface) surface side of the frame 11. The second urging means 36 includes a bearing 37 that protrudes from the surface of the frame 11, and a pressing member 39 that is rotatably provided on the bearing 37 via a rotation shaft 38. The holding member 39 is formed with a hole 39 </ b> A that accommodates a winding spring 40 as a pressing member urging means around the rotation shaft 38. One end of the winding spring 40 is fixed to the bearing 37 and the other end is held by the pressing member 39. As a result, the free end side of the presser member 39 is urged in the direction toward the left side. The pressing member 39 is provided so as to be able to contact the other side end (right end) of the long body BL before being wound around the rotary base 12 so as to positively abut the long body BL on the guide surface 13A. It has become.

  Next, a winding method of the long body BL by the rotation support device 10 of the present embodiment will be described.

  In preparation for winding, the ball rotating body 26 of each displacing means 15 is magnetically attached to the receiving means 33 of the interval changing means 16, and the ball rotating body 29 is received by the movement restricting means 34 as shown in FIG. Thus, the interval changing means 16 is rotated and moved. As a result, the shaft 25 is inclined by an angle β with respect to the virtual line VL. The angle β may be the same as the angle α, may be small, or may be large.

  In this state, after the lead end of the long body BL is fixed to the shaft 25 by fixing means such as an adhesive tape or an adhesive, the long body BL is directly wound around the shaft 25 by operating the rotation motor DM. Taken. The long body BL wound up by this winding becomes a winding body, and the base end side diameter D1 which is the winding diameter on the base end portion (one end portion 15A) side of the displacement means 15 in the winding body is displaced. An attitude in which the winding body is biased toward the guide means 13 by making it smaller than the free end side diameter D2 which is the winding diameter on the free end (other end 15B) side of the means 15, that is, a different diameter winding attitude. It is always maintained, and even if the winding amount of the long body BL increases, the winding body can be prevented from collapsing. At this time, it is easier to maintain the different diameter winding posture by urging the long body BL so as to approach the guide surface 13A by the pressing member 39 of the second urging means 36.

  When the winding body formed by winding a predetermined amount of the long body BL is extracted from the rotation support device 10, the interval changing means 16 is rotated to move the interval changing means 16 to the right. As a result, the displacing means 15 is rotationally displaced, and as shown in FIG. 3, the shaft 25 is in a state inclined by an angle γ from the virtual line VL. At this time, the distance between the other end portions 15B of the displacing means 15 is smaller than the distance between the same end portions 15A, so that a gap is formed between the inner peripheral surface of the winding body and the displacing means 15. There is no trouble in the work.

  Therefore, according to such an embodiment, the guide surface 13A is an inclined surface that inclines in the direction from the other end portion 15B to the one end portion 15A in the displacement means 15 as the guide surface 13A moves away from the base axis 12A. Even if the winding amount of BL increases, the irregular winding posture can be maintained, and the winding body can be prevented from collapsing. In addition, since it is not necessary to displace the guide means 13, the rotation base 12, and the rotation motor DM so as to incline, the structure can be simplified as compared with the conventional case, and the entire apparatus can be reduced in size.

  Furthermore, since the adhesion between the receiving means 33 and the ball rotating body 26 can be maintained by the spring member 29 or magnetism, the displacement means 15 can be smoothly rotated and displaced by the operation of the interval changing means 16, and the receiving means 33 and the ball rotating body 26 can be moved. Can be prevented from leaving carelessly. Thereby, at the time of extraction of a winding body, the clearance gap between the internal peripheral surface and the displacement means 15 can be ensured large, and it becomes possible to avoid that a burden arises in extraction operation | work.

As described above, the best configuration, method and the like for carrying out the present invention have been disclosed in the above description, but the present invention is not limited to this.
In other words, the present invention has been illustrated and described mainly with respect to specific embodiments, but without departing from the scope of the technical idea and object of the present invention, the shape, position, or With respect to the arrangement and the like, those skilled in the art can make various changes as necessary.
Therefore, the description limited to the shape disclosed above is an example for easy understanding of the present invention, and does not limit the present invention. The description by the name of the member which remove | excluded one part or all part is included in this invention.

For example, in the said embodiment, what wound up the elongate body BL was illustrated as a rotation support apparatus, However, As the rotation support apparatus, the elongate body BL wound beforehand may be paid out.
Further, in the above embodiment, the long body BL is directly wound around the displacement means 15 and the long body BL is wound up. However, the displacement means 15 is attached with a cylindrical winding core, and the displacement means 15 is long. The long body BL may be wound up indirectly by winding the body BL.

Furthermore, the formation of the receiving means 33 in the taper portion 32 may be omitted, or the other end portion 15B of the displacement means 15 may be in direct contact with the interval changing means 16 without providing the ball rotating body 26.
Further, as the first urging means and the pressing member urging means, other members such as an elastic member such as rubber or resin, or a leaf spring can be employed.

  The number of the displacement means 15 may be increased or decreased as appropriate, such as 3 or less or 5 or more. Further, the guide means 13 may be divided into a plurality of parts.

Further, the moving mechanism of the interval changing means 16 is a type in which the screw mechanism of the male screw and the female screw 16A is omitted and the interval changing means 16 is linearly slid in the extending direction of the base axis 12A, a motor, an air cylinder, or the like. It is also possible to use a drive mechanism that automatically advances and retreats.
Furthermore, the rotation base 12 may be manually rotated without providing the rotation motor DM.
The long body BL may be a strip-shaped adhesive sheet or a release sheet on which a strip-shaped adhesive sheet is temporarily attached, or may be paper, cloth, steel plate, belt, resin, wood board, etc. It may be a thread, string, wire, cord, tube, hose, or the like.
Further, the drive device in the embodiment includes an electric device such as a rotation motor, a linear motion motor, a linear motor, a single axis robot, an articulated robot, an actuator such as an air cylinder, a hydraulic cylinder, a rodless cylinder, and a rotary cylinder. In addition to these, a combination of them directly or indirectly may be employed (some of them overlap with those exemplified in the embodiment).

DESCRIPTION OF SYMBOLS 10 Rotation support apparatus 11 Frame 12 Rotation base 12A Base axis 13 Guide means 13A Guide surface 15 Displacement means 16 Spacing change means BL Long body

Claims (2)

A rotating base that is supported by a predetermined frame and is provided so as to be relatively rotatable with respect to the frame about the base axis, and one end of the rotating base is rotatably supported. In a state in which the displacement means is displaceable in a direction approaching and separating from the base axis, and is provided to be movable in the extending direction of the base axis, with the other end of the displacement means being in contact with each other. An interval changing means provided so that the displacement distance of the other end portion can be adjusted; and a guide means having a guide surface with which one side end of the wound long body can come into contact; and A rotation support device for winding a long body directly or indirectly around the displacement means by relative rotation and winding or feeding the long body,
The guide surface is an inclined surface that inclines in a direction from the other end portion to the one end portion of the displacement means as it is away from the base axis.
The other side end of the long body in the middle of winding before winding around the displacement means or the other side end of the long body in the middle of feeding after being fed from the displacement means A long-body rotation support device, comprising: a second urging unit that is in contact with and can apply a force in a direction approaching the guide surface to the long body.   2. The rotation support device for a long body according to claim 1, further comprising a first urging unit capable of applying a force in a direction in which the other end of the displacing unit approaches the base axis by magnetism. .

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