JP2014136619A - Metal wire let-off device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a metal wire let-off device in which a risk such that deformation, damage, breaking and so on occur in a metal wire fed out from a winding wire bobbin can be reduced.SOLUTION: A metal wire let-off device 1 in which a main spindle 4 is rotatably provided at the center of a vertically disposed winding wire bobbin 2 via a flyer frame 3, an arm 5, which extends in a radial direction of the winding wire bobbin 2, is provided to the main spindle 4, a first guide 7 for guiding a metal wire 6 is provided to the tip of the arm 5, and a second guide 8 for guiding the metal wire 6 from the first guide 7 is provided onto an upper part of the main spindle 4, and in which the main spindle 4 and the arm 5 are rotated, whereby the metal wire 6 of the winding wire bobbin 2 is fed out from the first guide 7 through the second guide 8. In the metal wire let-off device 1, the first guide 7 and the second guide 8 are equipped with a rotatable guide roller 23 for guiding the metal wire 6.

Description

  The present invention relates to a metal wire feeding device that feeds a metal wire from a vertically placed winding bobbin.

  As shown in FIG. 6, the metal wire sending device 50 feeds the metal wire 6 unwound from the vertical winding bobbin 2 upward while being guided by the two ceramic guide chips 51 and 52.

  These ceramic guide chips 51 and 52 are formed in a cylindrical shape, and are guided by inserting a metal wire 6 therein.

Japanese Patent Laid-Open No. 2000-102821

  By the way, the metal wire sending device 50 is for sending the metal wire 6 while being rubbed against the ceramic guide tips 51 and 52, so there is a problem that the metal wire 6 may be deformed so as to be flattened by the friction. It was. Further, when the ceramic guide chips 51 and 52 are rubbed locally, the ceramic guide chips 51 and 52 are flawed, and the flaws cause damage to the metal wire 6 or disconnection of the metal wire 6. There was a problem that it was a factor that occurred.

  Therefore, an object of the present invention is to provide a metal wire sending device that solves the above-described problems and can reduce the risk of occurrence of defects such as deformation, scratches, and disconnection in a metal wire sent from a winding bobbin.

  In order to solve the above-mentioned problems, the present invention provides a main shaft rotatably through a flyer mount at the center of a vertically placed winding bobbin and an arm extending in the radial direction of the winding bobbin on the main shaft. A first guide for guiding a metal wire is provided at the tip of the arm, a second guide for guiding the metal wire from the first guide is provided on the upper portion of the main shaft, and the main wire and the arm are rotated to rotate the metal wire of the winding bobbin. Is a metal wire sending device for sending the first guide through the second guide, wherein the first guide and the second guide include a rotatable guide roller for guiding the metal wire.

  ADVANTAGE OF THE INVENTION According to this invention, the risk that defects, such as a deformation | transformation, a crack, and a disconnection generate | occur | produce in the metal wire sent out from a coil | winding bobbin, can be reduced.

It is front explanatory drawing of the metal wire sending out device concerning this embodiment. (A) is a principal part enlarged view of FIG. 1, (b) is an AA arrow directional cross-sectional view of (a). (A) is the principal part enlarged view of FIG. 1, (b) is a BB arrow directional cross-sectional view of (a), (c) is CC arrow directional view of (b). . It is a plane explanatory view of a metal wire sending device. It is a perspective explanatory view of a metal wire sending device. (A) is front explanatory drawing of the conventional metal wire sending apparatus, (b) is a principal part top view of (a).

  A metal wire sending device according to the present invention will be described with reference to the drawings.

  1, 4 and 5 are explanatory views of a metal wire sending device attached to a winding bobbin and sending a metal wire from the winding bobbin. 2 (a) and 2 (b) are explanatory views of the guide disposed on the upper part of the metal wire sending device, and FIGS. 3 (a), (b) and (c) are the sides of the metal wire sending device. It is explanatory drawing of the guide arrange | positioned at the part.

  As shown in FIGS. 1 and 5, the metal wire sending device 1 includes a main shaft 4 that is rotatably provided at the center of a vertically placed winding bobbin 2 via a fryer frame 3, and a winding provided on the main shaft 4. From the arm 5 extending in the radial direction of the bobbin 2, the first guide 7 provided at the tip of the arm 5 for guiding the metal wire 6 fed from the winding bobbin 2, and the first guide 7 provided above the main shaft 4 A second guide 8 for guiding the metal wire 6, and a tension adjusting mechanism 9 for applying tension to the metal wire 6 hung around the first guide 7 and the second guide 8. Note that the vertical placement of the winding bobbin 2 means that the winding bobbin 2 is placed in a posture in which the central axis C stands up.

  The winding bobbin 2 includes a cylindrical body portion 10 around which a copper wire as a metal wire 6 is wound, and flanges 11 provided at both ends of the body portion 10. A shaft hole (not shown) is formed on the central axis C of the winding bobbin 2.

  The flyer base 3 is formed in a cylindrical shape extending vertically and is inserted into the shaft hole of the winding bobbin 2, and the flange portion of the winding bobbin 2 is provided at the upper end of the base 12 so as to extend radially outward. 11 and a flange portion 13 placed on the upper surface. A plurality of bearings 15 are provided in the center hole 14 at the center of the flyer base 3 so as to be spaced apart from each other in the vertical direction. As the bearing 15, for example, a type in which a ball (not shown) is provided between inner and outer rings (not shown) is used. In this case, the outer ring is preferably fixed to the fryer frame 3 and the inner ring is fixed to the main shaft 4.

  The main shaft 4 has a circular cross section. The main shaft 4 includes an insertion shaft portion 16 that is inserted into the pedestal hole 14 and is rotatably supported by the flyer pedestal 3 via a bearing 15, and an extending shaft portion 17 that extends upward from the fryer pedestal 3. The lower end of the insertion shaft portion 16 is fixed to the lowermost bearing 15 with a bolt 18. The extension shaft portion 17 is formed with an arm hole (not shown) through which a later-described arm 5 is inserted in the radial direction. Further, a fixing bolt 19 for fixing the arm 5 inserted into the arm hole is attached to the extending shaft portion 17. The fixing bolt 19 extends in the radial direction and is attached to the extending shaft portion 17 so as to be orthogonal to the arm hole. By pressing the arm 5 in the arm hole from the side, the fixing bolt 19 is attached to the extending shaft portion 17. It is designed to be fixed.

  The arm 5 is made of a strong material such as a steel material, is formed in a bar shape thinner than the main shaft 4, and is bent in a stepped manner in multiple stages. The distal end portion 20 of the arm 5 is formed in a circular cross section and extends downward, and the lower end of the distal end portion 20 is positioned below the flange portion 11 of the winding bobbin 2. The arm 5 is bent in multiple stages to prevent bending and bending.

  As shown in FIGS. 3A, 3B, and 3C, the first guide 7 is a roller fixing guide that is attached to the tip portion 20 of the arm 5 so that the position of the first guide 7 can be adjusted and the posture of the first guide 7 can be adjusted. 21 and a guide roller 23 that is rotatably provided on the roller fixing guide 21 via a bearing 22 and guides the metal wire 6.

  The roller fixing guide 21 is formed in a block shape and a fixing portion 24 through which the tip 20 of the arm 5 is inserted, and a radial extension portion 25 provided in the fixing portion 24 and extending in the radial direction so as to be separated from the winding bobbin 2. A circumferential extension 26 provided at the distal end of the radial extension 25 and extending in the circumferential direction of the winding bobbin 2, and an axial position of the guide roller 23 provided in the circumferential extension 26 and restricting the metal wire And a pair of regulating plates 27 for regulating the six paths.

  The fixing portion 24 has a vertical hole 28 having a circular cross section through which the distal end portion 20 of the arm 5 is inserted, and a fixing screw 29 provided so as to be able to protrude and retract with respect to the vertical hole 28. The fixing portion 24 can be adjusted in the vertical position with respect to the arm 5 by being loosened the fixing screw 29, and can be adjusted in the rotational direction. By adjusting the posture of the fixing portion 24 in the rotation direction, the posture of a guide roller 23 described later can be changed, and the winding bobbin 2 having a different winding direction can be handled.

  The radially extending portion 25 is formed in a plate shape in which the circumferential direction of the winding bobbin 2 is the thickness direction, and is one side of the fixed portion 24, specifically, one side of the circumferential direction of the winding bobbin 2. The fixing portion 24 is provided so as to extend from the fixing portion 24.

  The circumferential extension 26 is formed in a rod shape. A guide roller 23 is provided coaxially via a bearing 22 at the distal end side of the circumferentially extending portion 26. Moreover, the diameter-expansion part 30 is provided in the both ends of the circumferential direction extension part 26, the circumferential direction extension part 26 falls out from the radial direction extension part 25, or the control board 27 falls out from the circumferential direction extension part 26. Is designed to prevent

  The restricting plate 27 is formed in a plate shape orthogonal to the circumferentially extending portion 26, and the position of the guide roller 23 is restricted by positioning the guide roller 23 between the pair of restricting plates 27. The restriction plate 27 is formed so as to extend outward in the radial direction of the winding bobbin 2, and even when the metal wire 6 fed along the guide roller 23 is detached from the guide roller 23, the metal wire 6 routes are regulated. Further, a pair of guide plates 31 for further guiding the metal wire 6 are provided on the front end side of the regulation plate 27 so as to be spaced apart from each other in the vertical direction.

  One guide plate 31 is provided on each regulation plate 27, and extends toward the opposing regulation plate 27, and is formed so as to be separated from the opposing regulation plate 27 with a slight gap G therebetween. ing. The gap G is for passing the metal wire 6 from the outside to the inside between the regulating plates 27. When the metal wire 6 is hung on the guide roller 23, the gap G is easily passed, and the metal wire 6 removed from the guide roller 23 passes. It has become difficult. A metal wire introducing portion 32 that is inclined to guide the metal wire 6 to the gap G is formed on the outer side of the distal end portion of the guide plate 31. Further, a metal wire return portion 33 is formed on the inner side of the base end portion of the guide plate 31 so as to be inclined so as to return the metal wire 6 detached from the guide roller 23 to the center between the regulating plates 27.

  The guide roller 23 is made of ceramic and has a guide groove 34 formed in an annular shape along the circumferential direction on the outer periphery. The guide groove 34 is formed in a V-shaped cross section and guides the metal wire 6 unwound from the winding bobbin 2 to the center in the axial direction of the guide roller 23.

  As shown in FIGS. 1, 2 (a) and 2 (b), the second guide 8 includes a fixture 35 provided at the upper end of the main shaft 4, and a roller unit rotatably provided on the fixture 35. 36.

  The fixture 35 is formed in a U shape in a side view, and a lower end plate portion 37 extending in the horizontal direction is attached to the upper end of the main shaft 4. A through hole 39 for passing the metal wire 6 is formed in the upper end plate portion 38 extending in the horizontal direction of the fixture 35. Further, a support shaft 41 for rotatably supporting the roller unit 36 is provided on the intermediate plate portion 40 extending in the vertical direction of the fixture 35 so as to extend in parallel with the upper end plate portion 38.

  The roller unit 36 includes a pair of holding plates 42 arranged to face each other in the horizontal direction, a pivot shaft 43 provided between the holding plates 42 and extending in parallel with the support shaft 41, and a bearing 22 on the pivot shaft 43. And a guide roller 23 that is rotatably provided through the. The holding plate 42 is formed in a horizontally long shape, and one end side in the longitudinal direction is rotatably supported by the support shaft 41. The pivot shaft 43 is provided on the other end side of the holding plate 42, and pivotally supports the guide roller 23 eccentrically from the support shaft 41. Further, the pivot shaft 43 is disposed so as to be orthogonal to the arm 5, and the outer periphery of the guide roller 23 faces the first guide 7. The guide roller 23 is the same as the first guide 7.

  The tension adjusting mechanism 9 includes a support 44 provided on the main shaft 4 between the arm 5 and the flyer base 3 so as to be vertically adjustable, a brake pad 45 provided on the main shaft 4 below the support 44 so as to be vertically movable, A tension adjusting spring 46 is provided between the support 44 and the brake pad 45 and presses the brake pad 45 against the fryer frame 3. The tension adjustment spring 46 is a coil spring and is provided between the support 44 and the brake pad 45 in a compressed state.

  Next, the operation of this embodiment will be described.

  When the metal wire 6 is unwound from the winding bobbin 2, the base portion 12 of the flyer base 3 is inserted and attached to the shaft hole of the winding bobbin 2, and the distal end portion 20 of the arm 5 is matched to the outer diameter of the winding bobbin 2. Adjust the horizontal position. Thereby, the distance between the first guide 7 and the winding bobbin 2 is adjusted.

  Thereafter, the fixing position of the roller fixing guide 21 with respect to the distal end portion 20 of the arm 5 is adjusted up and down, and the posture of the roller fixing guide 21 around the distal end portion 20 in the rotational direction is adjusted. At this time, the vertical position of the roller fixing guide 21 is set so that the guide roller 23 faces the metal wire 6 wound around the winding bobbin 2. Further, the posture of the roller fixing guide 21 is determined so that the guide roller 23 is directed in the winding direction of the metal wire 6 wound around the winding bobbin 2. As shown in FIG. 4, the winding bobbin 2 includes a metal wire 6 wound clockwise and a counterclockwise winding. Depending on the winding direction, the rotation direction of the arm 5 is clockwise. There are cases where it becomes X1 and counterclockwise X2. The direction of the guide roller 23 of the first guide 7 is set so as to face the rotation direction of the arm 5.

  Thereafter, the end of the metal wire 6 wound around the winding bobbin 2 is passed through the first guide 7 and the second guide 8 and connected to a predetermined supply destination. When the metal wire 6 is passed through the first guide 7, the metal wire 6 is passed through the gaps G between the respective regulation plates 27 and the holding plates 42, and hung on the guide rollers 23. At this time, depending on the angle of the roller fixing guide 21, the metal wire 6 may come into contact with the arm 5. Therefore, when contact is confirmed, the angle of the roller fixing guide 21 is adjusted again. When the metal wire 6 is passed through the second guide 8, the metal wire 6 is passed between the support shaft 41 and the guide roller 23 and then passed through the through hole 39 of the fixture 35.

  The metal wire 6 is pulled from the supply destination, and a tension corresponding to the frictional force between the brake pad 45 and the flyer mount 3 is generated on the metal wire 6. The tension is adjusted by adjusting the vertical position of the support 44.

  The metal wire 6 delivered from the winding bobbin 2 is guided by the guide roller 23 of the first guide 7 and then guided by the guide roller 23 of the second guide 8 to be supplied to the upper supply destination. Since the guide roller 23 rotates in accordance with the movement of the metal wire 6, the guide roller 23 is not rubbed with the metal wire 6, the guide roller 23 and the metal wire 6 are not damaged, and are not disconnected.

  As described above, since the first guide 7 and the second guide 8 include the rotatable guide roller 23 for guiding the metal wire 6, the metal wire 6 can be prevented from being deformed by friction and the first guide 7 and the second guide 8 can be prevented from being deformed. It is possible to prevent the first guide 7 and the second guide 8 from being scratched by friction, and to reduce the risk of occurrence of defects such as deformation, scratches and disconnection in the metal wire 6.

  The first guide 7 includes a roller fixing guide 21 attached to the arm 5, and a guide roller 23 provided rotatably on the roller fixing guide 21 via a bearing 22, and the guide roller 23 is provided on the winding bobbin 2. Since it rotates around the axis extending in the circumferential direction, the metal wire 6 delivered from the winding bobbin 2 can be stably guided upward with a simple structure.

  The metal wire 6 is made of copper wire, but may be made of other materials such as tin-plated wire or enameled wire.

  The guide roller 23 is not limited to ceramic. For example, the guide roller 23 may be made of MC nylon, phenol resin, or the like.

  Further, when a line blur or the like occurs between the first guide 7 and the second guide 8, another guide roller 23 may be additionally provided on the arm 5.

  The tension adjusting mechanism 9 may be a permanent torque type such as a magnet brake.

DESCRIPTION OF SYMBOLS 1 Metal wire sending apparatus 2 Winding bobbin 3 Flyer mount 4 Spindle 5 Arm 6 Metal wire 7 1st guide 8 2nd guide 23 Guide roller

Claims (1)

  A main shaft is rotatably provided at the center of a vertically placed winding bobbin via a flyer mount, and an arm extending in the radial direction of the winding bobbin is provided on the main shaft, and a metal wire is guided to the tip of the arm. A guide is provided, and a second guide for guiding the metal wire from the first guide is provided on the upper portion of the main shaft, and the main shaft and the arm are rotated to send the metal wire of the winding bobbin from the first guide through the second guide. A metal wire sending device, wherein the first guide and the second guide include a rotatable guide roller for guiding the metal wire.