JP2016203356A - Wire polishing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wire polishing device which can easily perform gap adjustment between polishing rolls.SOLUTION: A wire polishing device 10 has a rolling mechanism 40 comprising a pair of roll shafts 31, 32 and a planetary gear mechanism 50 for rolling the roll shafts 31, 32, and a variable support mechanism 81 comprising a cone member 80. The rolling mechanism 40 has: a ring gear 60 having an internal tooth; a rotary body 46 which is rotated by a motor 41; planetary gears 62, 63; and gear boxes 65, 66 which are rotated around axes 62a, 63a of the planetary gears 62, 63 along a front face 46a of the rotary body 46. The gear boxes 65, 66 are respectively provided with a bearing part 74 for supporting the roll shaft 31, 32. The cone member 80 is provided with an inner surface 87 which supports roller followers 35, 36 of the roll shafts 31, 32. When the cone member 80 is moved in a direction along an axis X1 by a cone movement mechanism 82, a distance between the roll shafts 31, 32 is changed according to a position of the cone member 80, whereby a gap G between polishing rolls 33, 34 is adjusted.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a wire polishing apparatus for polishing a wire with a rotating polishing roll.

  In order to remove oxide film such as oxide scale (so-called black skin), decarburized layer, dirt, and other removal objects existing on the surface of the wire, a wire polishing apparatus for polishing the surface of the wire has been developed. ing. For example, the wire scarfing machine disclosed in Patent Document 1 includes a pair of cutters arranged parallel to each other with a wire interposed therebetween, and a planetary gear mechanism that rotates the cutters and revolves the cutters around the wires. Yes. The scouring device disclosed in Patent Document 2 includes a pair of roll brushes arranged in parallel to each other on both sides of a wire such as a wire, and a planetary gear mechanism that rotates each of the roll brushes and revolves around the wire.

  When using a polishing roll in which a large number of sandpaper or cloth laminates are formed in a cylindrical shape as a polishing member, a pair of polishing rolls are rotated while revolving around the wire, and the outer periphery of the polishing roll Is brought into contact with the surface of the wire to polish the surface layer of the wire. As this type of polishing roll is used, the outer periphery gradually wears and the outer diameter becomes smaller. When the outer peripheral portion of the polishing roll is worn and the outer diameter is reduced, the surface of the wire cannot be sufficiently polished. For this reason, the conventional wire grinding | polishing apparatus is equipped with the adjustment mechanism in order to adjust the gap between grinding | polishing rolls according to abrasion of a grinding | polishing roll.

  For example, the adjustment mechanism disclosed in Patent Document 1 is configured such that the frame body is movable so that the relative positions of the frame bodies supporting the pair of cutter shafts can be changed, and the distance between the pair of cutters is changed. At this time, the distance between the polishing members is changed by changing the amount of screwing of the nut fixing the frame. The adjustment mechanism disclosed in Patent Document 2 is configured to change the distance between a pair of roll brushes by means of an adjuster using a worm wheel and a worm.

JP 48-42493 A JP 2001-38600 A

  In a conventional wire polishing apparatus using a polishing roll, when wear of the polishing roll progresses and it becomes necessary to adjust the gap between the polishing rolls, the movement of the wire is temporarily stopped and an operator operates the adjusting mechanism. By adjusting the distance between the polishing rolls. For this reason, the wire polishing operation is interrupted during the adjustment operation.

  For example, in a facility in which a coiling machine is arranged near the wire polishing apparatus and the coil polished by the coiling machine is manufactured while continuously moving the wire polished by the wire polishing apparatus toward the coiling machine, the gap adjustment between the polishing rolls is adjusted. If the movement of the wire is interrupted each time the coiling operation is interrupted, the manufacturing efficiency of the coil spring is significantly reduced. In addition, the conventional wire polishing apparatus has room for improvement, for example, it is not easy to adjust the gap between the polishing rolls.

  Accordingly, an object of the present invention is to provide a wire polishing apparatus that can easily adjust a gap between polishing rolls in accordance with the wear amount of the polishing roll.

  One embodiment of a wire polishing apparatus according to the present invention includes a frame, a pair of parallel roll shafts arranged on the frame, a rotation mechanism arranged on one end side of each roll shaft, and each roll And a variable support mechanism disposed on the other end side of the shaft. The rotating mechanism includes a main shaft that is rotated by a motor, a rotating body that is provided on the main shaft and that rotates about the axis integrally with the main shaft, a ring gear that is provided on the frame, and a pair of planetary gears that mesh with the ring gear. These planetary gears have a planetary gear mechanism that rotates while revolving in the circumferential direction of the ring gear, and a gear box disposed on the rotating body. The gear box is rotatable about the axis of the planetary gear, has a gear that transmits the rotation of the planetary gear to the roll shaft, and has a bearing portion that supports the roll shaft. Yes. The variable support mechanism includes a cone member and a cone moving mechanism that moves the cone member in the axial direction. The cone member has a frustoconical inner surface that supports end portions of the pair of roll shafts, and is arranged so that the center of the inner surface is located on the axis.

In this embodiment, a rotatable roller follower is provided at the end of the roll shaft, and the roller follower can be moved to a position supporting the roller follower and a position away from the roller follower on the axis inside the cone member. It is good to have an inner roller.
Furthermore, in this embodiment, it is preferable to have a first guide pipe and a second guide pipe into which the wire is inserted. The first guide pipe is disposed on the axis line through the center of the main shaft and has a tip protruding toward the gap between the pair of polishing rolls. The second guide pipe is disposed on the axis line through the center of the inner surface of the cone member, and has a tip that protrudes toward the gap.

  In one embodiment, the sensor which detects the surface of the wire, the drive mechanism which moves the cone member in the direction of the axis according to the surface state of the wire detected by the sensor, and the drive mechanism are controlled And a control unit.

  According to the present invention, the gap between the polishing rolls can be easily adjusted even during the wire polishing operation by moving the cone member according to the wear amount of the polishing roll for polishing the wire.

1 is a perspective view of a wire polishing apparatus according to one embodiment. Sectional drawing which follows the axial direction of the wire grinding | polishing apparatus. Sectional drawing of the wire grinding | polishing apparatus which follows the F3-F3 line | wire in FIG. Sectional drawing of the wire grinding | polishing apparatus which follows the F4-F4 line | wire in FIG. Sectional drawing of the wire grinding | polishing apparatus which follows the F5-F5 line | wire in FIG. Sectional drawing of the wire grinding | polishing apparatus which follows the F6-F6 line | wire in FIG. Sectional drawing corresponding to FIG. 2 which shows the state with which the grinding | polishing roll was worn out.

Hereinafter, a wire polishing apparatus according to one embodiment will be described with reference to FIGS. 1 to 7.
FIG. 1 is a perspective view showing an example of a wire polishing apparatus 10, and the wire polishing apparatus 10 is fixed on a gantry 11. The wire polishing apparatus 10 is installed on a floor of a factory or the like via a gantry 11.

  A wire inlet portion 12 is formed on one end side of the wire polishing apparatus 10. A wire outlet portion 13 is formed on the other end side of the wire polishing apparatus 10, and the wire W introduced into the wire polishing apparatus 10 from the wire inlet portion 12 is substantially constant in the direction indicated by the arrow A in FIG. The wire W polished by the wire polishing apparatus 10 is continuously moved at a speed, and the polished wire W comes out from the wire outlet portion 13.

  A wire supply unit is arranged on the upstream side of the wire polishing apparatus 10 with respect to the moving direction of the wire W (arrow A). A wire processing apparatus such as a coiling machine is disposed on the downstream side of the wire polishing apparatus 10 with respect to the moving direction of the wire W. The wire W is continuously moved in the direction indicated by the arrow A by a feed roller which is a part of the wire processing apparatus.

  In this specification, a line segment along a trajectory in which the wire W moves between the wire inlet portion 12 and the wire outlet portion 13 is referred to as an axis X1 (shown in FIGS. 1 and 2) of the wire polishing apparatus 10. To do. The type of the wire W is not particularly limited, but an example of the wire W is a heat-treated oil tempered wire, and an oxide film called a black skin is formed on the surface of the wire W. The wire polishing apparatus 10 of the present embodiment is used for the purpose of, for example, removing an oxide film, but of course the wire polishing apparatus 10 may be used for other purposes.

  FIG. 2 is a cross-sectional view of the wire polishing apparatus 10 along the direction of the axis X1 and shows the inside of the wire polishing apparatus 10. The wire polishing apparatus 10 includes a frame 20 formed by combining frame elements such as steel frames, and a cover 21 (shown in FIG. 1) provided on the frame 20. The cover 21 can be opened and closed, and a window portion 22 made of a transparent member is formed so that the inside of the wire polishing apparatus 10 can be observed.

  The wire polishing apparatus 10 includes a first roll shaft 31 and a second roll shaft 32 that are arranged inside the frame 20 in parallel with each other. The roll shafts 31 and 32 are positioned on opposite sides of 180 ° with respect to the axis X1. Polishing rolls 33 and 34 are attached to the roll shafts 31 and 32, respectively. At the ends of the roll shafts 31 and 32, roller followers 35 and 36 made of rotatable rollers or the like are attached.

  Each of the polishing rolls 33 and 34 is configured, for example, by stacking a number of paper files or cloth files in which abrasive grains are attached to a paper or cloth base material. The surface of the wire W is polished at the outer periphery of the polishing rolls 33 and 34. As another example of the polishing rolls 33 and 34, for example, a sponge-like elastic member may be mixed with abrasive grains, or a wire brush or other polishing element may be formed into a cylindrical or columnar shape.

  A rotation mechanism 40 for rotating (rotating and revolving) the roll shafts 31 and 32 is disposed on one end side (left side in FIG. 2) of the roll shafts 31 and 32. A variable support mechanism 81 including a cone member 80 for supporting the roller followers 35 and 36 is disposed on the other end side (right side in FIG. 2) of the roll shafts 31 and 32.

  First, the rotation mechanism 40 will be described. 3 to 5 show an example of the rotation mechanism 40. The rotating mechanism 40 includes a main shaft 45 that is rotated by a drive source 43 including a motor 41 and a power transmission member 42 shown in FIG. 2 and the like, a disc-shaped rotating body 46 that is attached to the tip of the main shaft 45, and a rotation A planetary gear mechanism 50 for transmitting the rotational motion of the body 46 to the roll shafts 31 and 32 is included. The main shaft 45 and the rotating body 46 are rotatably supported around the axis X1 with respect to the frame 20 by a cylindrical portion 51 having a bearing. The rotating body 46 rotates around the axis X1. The axis line X <b> 1 passes through the center of the main shaft 45 and the rotating body 46. The power transmission member 42 includes, for example, a belt 55 and pulleys 56 and 57.

  As described below, the planetary gear mechanism 50 is configured to revolve around the wire W while rotating the roll shafts 31 and 32. An example of the planetary gear mechanism 50 includes a ring gear 60 attached to the frame 20, a pair of planetary gears 62 and 63 meshing with the internal teeth 61 of the ring gear 60, and a pair of gear boxes disposed on the front surface 46 a of the rotating body 46. 65, 66. The front surface 46a of the rotating body 46 is substantially perpendicular to the axis X1.

  As shown in FIGS. 3 and 5, the planetary gears 62 and 63 are arranged on opposite sides of 180 ° with the center of the ring gear 60 in between. The planetary gears 62 and 63 rotate while revolving in the circumferential direction of the ring gear 60 in a state where the planetary gears 62 and 63 mesh with the inner teeth 61 of the ring gear 60. The roll shafts 31 and 32 and the shafts 62a and 63a of the planetary gears 62 and 63 are parallel to the axis X1.

  As shown by an arrow B in FIG. 3, the first gear box 65 can rotate along the front surface 46 a of the rotating body 46 about the shaft 62 a of one planetary gear 62. As shown by an arrow C in FIG. 3, the second gear box 66 can rotate along the front surface 46 a of the rotating body 46 around the axis 63 a of the other planetary gear 63. Since these gear boxes 65 and 66 have a common configuration, the first gear box 65 shown in FIG. 4 will be described as a representative.

  As shown in FIG. 4, the gear box 65 includes a gear case 70 slidably contacting the front surface 46 a of the rotating body 46, an intermediate gear 71 attached to the shaft 62 a of the planetary gear 62 inside the gear case 70, and a roll shaft. And a driven gear 72 fixed to 31. The intermediate gear 71 is engaged with the driven gear 72. The shaft 62 a of the planetary gear 62 is rotatably supported by the rotating body 46 by a bearing portion 73 provided on the rotating body 46. The roll shaft 31 is rotatably supported with respect to the gear case 70 by a bearing portion 74 provided on the gear case 70.

  When the rotating body 46 rotates about the axis X1 integrally with the main shaft 45, the planetary gears 62, 63 rotate (spin) while revolving along the inner teeth 61 of the ring gear 60, and the planetary gears 62, 63 rotate (spinning motion). ) Is transmitted to the roll shafts 31 and 32 via the intermediate gear 71 and the driven gear 72 in the gear boxes 65 and 66, so that the roll shafts 31 and 32 revolve around the wire W while rotating.

  The gear boxes 65 and 66 can rotate around the shafts 62a and 63a of the planetary gears 62 and 63, respectively. Immediately after the rotation of the motor 41 starts, the centrifugal force acting on the gear boxes 65 and 66 revolving around the axis X1 is small as long as the peripheral speed of the rotating body 46 does not reach a predetermined value. When one gear box 65 is positioned on the upper side, the self weight of the roll shaft 31 and the polishing roll 33 is greater than the centrifugal force, so that the gear box 65 rotates about the shaft 62a in the direction indicated by the arrow R1 in FIG. Try to descend. Similarly, when the other gear box 66 is positioned on the upper side during the revolution, the self-weight of the roll shaft 32 and the polishing roll 34 is larger than the centrifugal force, so that the gear box 66 is centered on the shaft 63a by the arrow R1. Attempts to rotate down in the direction shown.

  When the rotation of the main shaft 45 approaches the rotational speed of steady operation and the peripheral speed of the rotating body 46 exceeds a predetermined value, the centrifugal force generated by the rotation becomes larger than the own weight of the roll shafts 31 and 32 and the polishing rolls 33 and 34. Thus, the gear boxes 65 and 66 are rotated so as to be swung to the outside of the rotating body 46 (direction indicated by an arrow R2 in FIG. 5) by centrifugal force.

  The rotation mechanism 40 of this embodiment includes a first guide pipe 75 that passes through the center of the main shaft 45 and the rotating body 46. As shown in FIG. 2, the tip 75 a of the first guide pipe 75 protrudes toward the gap G (shown in FIGS. 2, 4, and 5) between the polishing rolls 33 and 34. The first guide pipe 75 is located on the axis X1 of the wire polishing apparatus 10.

Next, the variable support mechanism 81 provided with the cone member 80 will be described.
6 is a cross-sectional view of the variable support mechanism 81 taken along line F6-F6 in FIG. The variable support mechanism 81 includes a cone member 80 and a cone moving mechanism 82 that moves the cone member 80 in a direction along the axis X1 (shown in FIG. 2). The cone member 80 can move from the reference position N shown in FIG. 2 toward the forward movement side position S1, and can also move from the reference position N toward the backward movement side position S2.

  The cone member 80 includes a cone body 85 and a frame 86 that holds the cone body 85. The cone body 85 is formed with an inner surface 87 that functions as a frustoconical roller pressing surface. The inner surface 87 of the cone member 80 has a rotating body shape inclined at an angle θ1 (shown in FIG. 4) so that the inner diameter increases from the back surface 80 a of the cone member 80 toward the polishing rolls 33 and 34. The cone member 80 is disposed such that the center X2 of the inner surface 87 is located on the axis X1 of the wire polishing apparatus 10.

  Inside the cone member 80, roller followers 35 and 36 provided at end portions of the roll shafts 31 and 32 are arranged. The roller followers 35 and 36 can contact the inner surface 87 of the cone member 80 in a freely rotatable manner. The roller followers 35 and 36 are rotatably supported by bearing members 88 (shown in FIG. 4) at the ends of the roll shafts 31 and 32, respectively. An angle θ2 (shown in FIG. 4) formed by the outer peripheral surfaces of the roller followers 35 and 36 and a line segment L parallel to the axis X1 corresponds to the angle θ1 of the inner surface 87 of the cone member 80. When the roller followers 35 and 36 are in contact with the inner surface 87 of the cone member 80, the roll shafts 31 and 32 move around the axis line X <b> 1 in a state where the distance between the roll shafts 31 and 32 is regulated by the inner surface 87. It can rotate (revolve).

  An example of the cone moving mechanism 82 is a pair of linear guide rails 90 arranged in parallel to each other along the axis X1 at the bottom of the frame 20, and is movable in the longitudinal direction of the linear guide rail 90 (direction along the axis X1). And a slide member 91. The slide member 91 is provided at the bottom of the frame body 86 of the cone member 80.

  Above the cone member 80, a ball screw mechanism 93 having a feed screw 92 and a guide rod 94 (shown in FIGS. 3 and 6) extending in a direction parallel to the feed screw 92 (a direction along the axis X1) are provided. ing. The linear guide rail 90, the feed screw 92, and the guide rod 94 each extend in a direction parallel to the axis X1. The feed screw 92 can be manually rotated by a handle 95. When the feed screw 92 is rotated, the cone member 80 is placed in the first direction M1 or the second direction M2 (shown in FIG. 2) along the axis X1 according to the rotation direction and the rotation amount of the feed screw 92. Move quantitatively.

  In an example of the cone moving mechanism 82, a drive mechanism 100 (shown in FIG. 2) including an electrically controllable actuator such as a servo motor, an electric circuit that controls the drive mechanism 100, and a control including a memory. The rotation direction and amount of rotation of the feed screw 92 may be controlled by an automatic control system including the unit 101 and the sensor 102 that detects the surface state of the wire W.

  An example of the control unit 101 performs image processing on a signal related to the surface state of the wire W detected by the sensor 102 to determine how much the surface (for example, black skin) of the wire W has been polished, so that the polishing is insufficient (black). If it is determined that the skin remains to some extent), it is determined that the abrasion of the polishing rolls 33 and 34 has exceeded the allowable amount, and the cone member 80 is driven to advance in the first direction M1 (shown in FIG. 2). Software (computer program) for controlling the mechanism 100 is provided. For example, a personal computer 105 may be connected to the control unit 101, and various data necessary for controlling the cone moving mechanism 82 may be input to the control unit 101 via the personal computer 105.

  When the polishing rolls 33 and 34 are worn, the inner surface 87 of the cone member 80 is moved forward toward the roll shafts 31 and 32 by moving the cone member 80 forward in the first direction M1. By doing so, the roller followers 35 and 36 move in a direction approaching each other, and the distance between the roll shafts 31 and 32 becomes small, so that the gap G between the polishing rolls 33 and 34 can be kept at an appropriate value. .

  When the distance between the roll shafts 31 and 32 changes, the gear boxes 65 and 66 rotate about the shafts 62a and 63a of the planetary gears 62 and 63 along the front surface 46a of the rotating body 46, whereby the roll shaft Under the state in which the parallel relationship between 31 and 32 is maintained, it is possible to follow the change in the inter-axis distance between the roll shafts 31 and 32.

  The variable support mechanism 81 of this embodiment includes a second guide pipe 110 that passes through the center X <b> 2 of the inner surface 87 of the cone member 80. Similar to the first guide pipe 75, the second guide pipe 110 is disposed on the axis X 1 of the wire polishing apparatus 10. The second guide pipe 110 is movable in the direction of the axis X1 with respect to the polishing rolls 33 and 34, and can be fixed at a desired position by the clamp mechanism 111.

  As shown in FIG. 2, the tip 110 a of the second guide pipe 110 protrudes toward the gap G between the polishing rolls 33 and 34. The wire W is exposed between the tip 75a of the first guide pipe 75 and the tip 110a of the second guide pipe 110. The wire W is polished by the polishing rolls 33 and 34 at the exposed portion. Since the wire W is supported by the guide pipes 75 and 110, even if the polishing rolls 33 and 34 that rotate at high speed touch the wire W, the guide pipe 75, 110 can be suppressed.

  An inner roller 120 is provided on the second guide pipe 110. The inner roller 120 is disposed between the roller followers 35 and 36 on the center X2 of the cone member 80 in correspondence with the roller followers 35 and 36. The shaft 121 of the inner roller 120 is supported by the support portion 123 of the cone member 80 via a bearing 122. The inner roller 120 can move relative to the cone member 80 in the direction along the axis X <b> 1 together with the second guide pipe 110.

  By moving the second guide pipe 110 in the direction of the axis X1, the inner roller 120 can be moved over the forward position P1 and the retracted position P2 shown in FIG. The advance position P1 is a position where the roller followers 35 and 36 can be supported. The retreat position P2 is a position away from the roller followers 35 and 36. When the inner roller 120 moves to the retracted position P2, the roller followers 35 and 36 can move in a direction approaching each other.

  In order to move the inner roller 120 to the retracted position P2, the clamp mechanism 111 is operated in the unlocking direction, and the second guide pipe 110 is moved in the direction of the axis X1. An inner roller driving mechanism having an actuator such as a servo motor is disposed at a position corresponding to the clamp mechanism 111, and the inner roller 120 is retracted from the forward position P1 by electrically controlling the inner roller driving mechanism by the control unit 101. You may move to the position P2.

  Immediately after the power is supplied to the motor 41 and the main shaft 45 and the rotating body 46 start to rotate integrally, the roll shaft 31 that revolves around the axis X1 as long as the peripheral speed of the rotating body 46 does not reach a predetermined value. 32 and the polishing rolls 33 and 34 are larger in weight than the centrifugal force generated by the revolution. Therefore, when the first gear box 65 or the second gear box 66 is positioned on the upper side, the roller followers 35 and 36 tend to be separated from the inner surface 87 of the cone member 80. However, at this time, the inner roller 120 is moved to the forward movement position P1 shown in FIG. 2, so that the roller followers 35 and 36 are supported by the inner roller 120.

  When the rotation of the motor 41 approaches the normal operating speed range and the peripheral speed of the rotating body 46 increases, the centrifugal force acting on the roll shafts 31, 32, the polishing rolls 33, 34, the gear boxes 65, 66, etc. increases. Thus, the roller followers 35 and 36 are in contact with the inner surface 87 of the cone member 80. Since this state is maintained, the inner roller 120 can be moved to the retracted position P2.

  When the polishing rolls 33 and 34 are worn and the outer diameter is reduced, the cone member 80 is advanced toward the forward-side position S1 by the cone moving mechanism 82 according to the amount of wear, and the distance between the roll shafts 31 and 32 is increased. Make it smaller. By doing so, the gap G between the polishing rolls 33 and 34 can be kept at an appropriate value.

  FIG. 7 shows a case where the abrasion of the polishing rolls 33 and 34 is increased. Since the cone member 80 moves to the position near the forward-side position S1 and the roller followers 35 and 36 move toward each other, the distance between the roll shafts 31 and 32 is reduced, and the distance between the polishing rolls 33 and 34 is reduced. The gap G is properly maintained.

  Thus, even if the polishing rolls 33 and 34 are worn during the polishing of the wire W, by adjusting the position of the cone member 80, the polishing can be performed while maintaining the parallel relationship between the roll shafts 31 and 32. The gap G between the rolls 33 and 34 can be kept appropriate. Therefore, the gap between the polishing rolls 33 and 34 can be adjusted according to the amount of wear of the polishing rolls 33 and 34 without interrupting the polishing operation of the wire W.

  When the abrasion of the polishing rolls 33 and 34 reaches an allowable limit, the polishing rolls 33 and 34 are replaced. When exchanging the polishing rolls 34, 34, the cone moving mechanism 82 is operated to move the cone member 80 to the reverse position S2 indicated by a two-dot chain line in FIG. Then, the used polishing rolls 33 and 34 are removed from the roll shafts 31 and 32, and new polishing rolls 33 and 34 are attached to the roll shafts 31 and 32. When the exchange of the polishing rolls 33 and 34 is completed, the cone member 80 is moved to a position where the gap G between the polishing rolls 33 and 34 is appropriate. Then, the wire W is polished by the polishing rolls 33 and 34.

As described above, the present embodiment includes the following steps in a method for polishing the wire W by revolving around the wire W while rotating the polishing rolls 33 and 34.
(1) The roller followers 35 and 36 of the roll shafts 31 and 32 are supported by the inner roller 120 until the peripheral speed of the rotating body 46 reaches a predetermined value immediately after the rotation of the main shaft 45 starts.
(2) The roller followers 35 and 36 are brought into contact with the inner surface 87 of the cone member 80 by centrifugal force generated when the peripheral speed of the rotating body 46 exceeds a predetermined value.
(3) With the roller followers 35, 36 in contact with the inner surface 87 of the cone member 80, the inner roller 120 is retracted from the roller followers 35, 36;
(4) Move the wire W in the direction along the axis X1,
(5) The wire W is polished by the polishing rolls 33 and 34 that rotate while revolving around the wire W,
(6) The gap G between the polishing rolls 33 and 34 is adjusted by changing the distance between the roll shafts 31 and 32 by moving the cone member 80 in the direction of the axis X1 according to the wear amount of the polishing rolls 33 and 34. To do.

  As a means for moving the cone member 80 in the direction along the axis X1, an operator may operate the cone moving mechanism 82 with the handle 95, or the drive mechanism 100 electrically controlled by the control unit 101. The position of the cone member 80 may be automatically adjusted.

  In carrying out the present invention, the configuration of each element constituting the wire polishing apparatus, the arrangement, and the like, including the roll shaft, the polishing roll, the rotation mechanism, the cone member, and the cone moving mechanism, are variously changed as necessary. Needless to say, this can be done. The wire polishing apparatus of the present invention may be used for purposes other than removing the oxide film on the wire surface, and a polishing roll suitable for the purpose is used.

  W ... wire, X1 ... axis, 10 ... wire polishing device, 12 ... wire inlet, 13 ... wire outlet, 31 ... first roll shaft, 32 ... second roll shaft, 33 ... first polishing roll, 34: Second polishing roll, 35, 36: Roller follower, 40: Rotating mechanism, 45 ... Main shaft, 46 ... Rotating body, 50 ... Planetary gear mechanism, 60 ... Ring gear, 61 ... Internal teeth, 62, 63 ... Planetary gear , 65, 66 ... gear box, 74 ... bearing portion, 75 ... first guide pipe, 80 ... cone member, 81 ... variable support mechanism, 82 ... cone moving mechanism, 87 ... inner surface, 100 ... drive mechanism, 101 ... control Part, 102 ... sensor, 110 ... second guide pipe, 120 ... inner roller, G ... gap between polishing rolls.

Claims (4)

Frame,
A pair of parallel roll axes disposed on the frame;
A rotation mechanism disposed on one end side of each roll shaft;
A variable support mechanism disposed on the other end side of each roll shaft,
The rotation mechanism is
A spindle rotated by a motor;
A rotating body provided on the main shaft and rotating around an axis integrally with the main shaft;
A planetary gear mechanism having a ring gear provided in the frame and a pair of planetary gears meshing with the ring gear, the planetary gears rotating while revolving in the circumferential direction of the ring gear;
A gear box that is disposed on the rotating body so as to be rotatable about the axis of the planetary gear, has a gear that transmits the rotation of the planetary gear to the roll shaft, and has a bearing portion that supports the roll shaft; Comprising
The variable support mechanism is
A cone member having a frustoconical inner surface supporting the ends of the pair of roll shafts and disposed on the axis;
A cone moving mechanism for moving the cone member in the axial direction;
A wire polishing apparatus comprising:   A roller follower that is rotatably provided at an end of the roll shaft is provided, and on the axis inside the cone member, the axis follows the position supporting the roller follower and the position separating from the roller follower. The wire polishing apparatus according to claim 1, further comprising an inner roller that moves in a direction along the line.   A first guide pipe having a tip disposed on the axis through the center of the main shaft and projecting toward the gap between the pair of polishing rolls; and through the center of the inner surface of the cone member The wire polishing apparatus according to claim 1, further comprising: a second guide pipe disposed on an axis and having a tip protruding toward the gap.   A sensor for detecting the surface of the wire; a drive mechanism for moving the cone member in the axial direction in accordance with the surface state of the wire detected by the sensor; and a controller for controlling the drive mechanism. The wire polishing apparatus according to any one of claims 1 to 3, wherein:

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