Wire winding device

Abstract

This technology provides a way to easily change the winding direction of steel wire. [Solution] The winding device comprises a winding drum that is driven to rotate around a central axis; a first gripping mechanism having a first pair of inclined surfaces on the outer peripheral side of the winding drum that grip the end of the wire being wound in a first direction in an obliquely extending manner; a second gripping mechanism having a second pair of inclined surfaces on the outer peripheral side of the winding drum that grip the end of the wire being wound in a second direction in an obliquely extending manner; a first drive mechanism housed on the side of the first gripping mechanism within the winding drum and changing the distance between the first pair of inclined surfaces; a second drive mechanism housed on the side of the second gripping mechanism within the winding drum and changing the distance between the second pair of inclined surfaces; and a rotation drive unit configured to switch the rotation direction of the winding drum.

Description

Technical Field

[0001] The present invention relates to a winding device for steel wire rods.

Background Art

[0002] Steel wire rods are generally coiled after being drawn using dies. For example, Patent Document 1 below discloses a winding drum for winding wire rods into a coil.

[0003] In the technique of Patent Document 1, the steel wire rod is wound around the outer peripheral side surface of the winding drum by rotating the winding drum with the end portion of the wire rod sandwiched between the inclined surfaces of the upper claw and the lower claw provided on the side surface of the winding drum. Inside the winding drum of Patent Document 1, a hydraulic cylinder for moving the upper claw and the lower claw to sandwich the end portion of the wire rod is accommodated.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] However, in the winding drum of Patent Document 1 above, the winding direction of the wire rod is limited to one direction. Therefore, in order to meet the desire to change the winding direction of the wire rod, it is necessary to newly add a winding drum whose configuration is modified to correspond to the winding direction, and there is a possibility that the equipment for winding the wire rod may become larger, which has never been easy. So far, sufficient ingenuity has not been made to enable the winding direction of steel wire rods to be easily changed.

[0006] An object of the present invention is to provide a technique capable of easily changing the winding direction of steel wire rods. [Means for solving the problem]

[0007] The present invention can be realized, for example, in the following forms.

[0008] [First Embodiment] The first embodiment of the present invention is provided as a winding device for steel wire. The winding device of the first embodiment includes a winding drum having a cylindrical shape and configured to be rotated around a central axis so that the wire is wound around a winding region on the outer circumference; a first gripping mechanism having a first pair of inclined surfaces arranged opposite to each other on the outer circumference, with a variable distance between them, which grips the end of the wire wound in a first direction relative to the winding region, with the end being moved closer to the winding region as it moves in the first direction, with the ends being extended diagonally with respect to the radial direction of the winding drum; and a second gripping mechanism arranged on the outer circumference, opposite to the first gripping mechanism across the central axis, with a variable distance between them, which grips the end of the wire wound in a first direction relative to the winding region, with respect to the winding region The winding drum includes: a second gripping mechanism having a second pair of inclined surfaces that grip the end of the wire being wound in the direction such that it approaches the winding area as it moves in the second direction, with the inclined surfaces extending diagonally with respect to the radial direction; a first drive mechanism housed in the area of ​​the winding drum on the side of the first gripping mechanism relative to the central axis, which changes the separation distance by moving at least one of the first pair of inclined surfaces; a second drive mechanism housed in the area of ​​the winding drum on the side of the second gripping mechanism relative to the central axis, which changes the separation distance by moving at least one of the second pair of inclined surfaces; and a rotational drive unit that applies rotational driving force to the winding drum and is configured to switch the rotation direction of the winding drum. According to the first embodiment of the winding device, the wire can be wound in a first direction relative to the winding drum by gripping the ends of the wire with a first pair of inclined surfaces of the first gripping mechanism. Furthermore, the wire can be wound in a second direction relative to the winding drum by gripping the ends of the wire with a second pair of inclined surfaces of the second gripping mechanism. In addition, both the first drive mechanism that drives the first gripping mechanism and the second drive mechanism that drives the second gripping mechanism are housed within the winding drum, resulting in a compact and simplified configuration. Moreover, the rotation direction of the winding drum can be easily switched by the rotary drive unit. Thus, according to the first embodiment of the winding device, the winding direction of the wire can be easily switched with a simple configuration.

[0009] [Second Embodiment] In the winding device of the first embodiment, the first gripping mechanism has a first gripping member and a second gripping member arranged to face each other in the direction of the central axis, the first pair of inclined surfaces are formed by the faces of the first gripping member and the second gripping member, the first drive mechanism is connected to the first gripping member and has an extension / retraction mechanism for the first gripping member that extends and retracts in the radial direction, and moves the first gripping member in the direction of the central axis in accordance with the radial extension / retraction of the extension / retraction mechanism for the first gripping member The second gripping mechanism comprises a motion conversion mechanism, the second gripping mechanism having a third gripping member and a fourth gripping member arranged to face each other in the direction of the central axis, the second pair of inclined surfaces being formed by the faces of the third gripping member and the fourth gripping member, the second drive mechanism having an extension / contraction mechanism for the third gripping member that is connected to the third gripping member and extends and contracts in the radial direction, and the second motion conversion mechanism may be provided to move the third gripping member in the direction of the central axis in accordance with the radial extension / contraction of the extension / contraction mechanism for the third gripping member. In the second embodiment of the winding device, the telescopic mechanisms for the first gripping member and the telescopic mechanisms for the third gripping member are configured to expand and contract radially, making it easy to arrange them to fit within the winding drum. Furthermore, the first motion conversion mechanism and the second motion conversion mechanism can convert the radial expansion and contraction of these mechanisms into motion in the central axis direction of the first gripping member and the third gripping member. Therefore, it becomes even easier to configure the first drive mechanism and the second drive mechanism within the winding drum to be compact.

[0010] [Third Embodiment] In the winding device of the second embodiment described above, the first motion conversion mechanism comprises: a first tip member connected to the tip of the telescopic mechanism for the first gripping member, having a first tip inclined surface that faces radially outward and toward the direction from the first gripping member toward the second gripping member; and a first holding member that holds the first gripping member and, when the telescopic mechanism for the first gripping member is extended, slides on the first tip inclined surface and moves toward the second gripping member together with the first gripping member in the direction of the central axis, wherein the tip of the telescopic mechanism for the first gripping member is such that it overlaps with the first tip inclined surface in the direction of the central axis. Inserted within the material, the second motion conversion mechanism comprises a second tip member having a second tip inclined surface that faces radially outward and toward the fourth gripping member, and connected to the tip of the telescopic mechanism for the third gripping member, and a second holding member that holds the third gripping member and moves toward the fourth gripping member toward the fourth gripping member toward the fourth gripping member toward the third gripping member toward the fourth gripping member toward the third gripping member toward the fourth gripping member, sliding on the second tip inclined surface, and the tip of the telescopic mechanism for the third gripping member may be inserted into the second tip member such that it overlaps with the second tip inclined surface toward the fourth gripping member toward the fourth gripping member. According to the third embodiment of the winding device, the first motion conversion mechanism and the second motion conversion mechanism can be realized with a simple configuration. Furthermore, the radial size of the first motion conversion mechanism and the second motion conversion mechanism can be shortened by the amount that the tip of the telescopic mechanism for the first gripping member and the tip of the telescopic mechanism for the third gripping member are inserted into the first tip member and the second tip member, respectively. Therefore, it becomes even easier to house the first drive mechanism and the second drive mechanism within the winding drum.

[0011] [Fourth Embodiment] In the winding device described in the second or third embodiment, the first drive mechanism may further include a drive unit for the second gripping member, which is positioned on the second gripping portion side with respect to the telescopic mechanism for the first gripping member in the central axis direction and moves the second gripping member radially relative to the first gripping member, and the second drive mechanism may further include a drive unit for the fourth gripping member, which is positioned on the fourth gripping portion side with respect to the telescopic mechanism for the third gripping member in the central axis direction and moves the fourth gripping member radially relative to the third gripping member. In the fourth embodiment of the winding device, the first gripping mechanism allows the end of the wire to be gripped by moving the first gripping member in the central axis direction while moving the second gripping member in the radial direction. Similarly, in the second gripping mechanism, the end of the wire can be gripped by moving the third gripping member in the central axis direction while moving the fourth gripping member in the radial direction. Therefore, the end of the wire can be gripped and fixed more securely whether the wire is wound onto the winding drum in the first direction or the second direction. Furthermore, in the fourth embodiment of the winding device, the drive mechanisms for moving the first gripping member, the second gripping member, the third gripping member, and the fourth gripping member are compactly housed within the winding drum, allowing for a simpler winding device configuration.

[0012] [Fifth Embodiment] In the winding device according to any of the first, second, third, and fourth embodiments described above, the first pair of inclined surfaces are provided in a position recessed in the radial direction inside a first window provided on the outer peripheral side surface of the winding drum, and the outer peripheral edge of the first window has a first inclined side wall surface that extends from the winding region toward the first window and is inclined radially inward, and a first guide portion is provided for guiding the wire extending from the first window to the winding region. The second pair of inclined surfaces are provided in a position recessed in the radial direction inside a second window provided on the outer peripheral side surface of the winding drum, and the outer peripheral edge of the second window has a second inclined side wall surface that is inclined from the winding region toward the window, and a second guide portion is provided for guiding the wire extending from the second window to the winding region. According to the fifth form of the winding device, guide sections for guiding the wire are provided in both the first and second window sections of the winding drum, allowing the wire to be wound more smoothly in both the first and second directions.

[0013] [Sixth Embodiment] In the winding device according to any of the first, second, third, fourth, and fifth embodiments described above, a first supply line for supplying the wire to the winding drum when the wire is wound around the winding drum in the first direction, and a second supply line for supplying the wire to the winding drum when the wire is wound around the winding drum in the second direction are arranged in parallel, wherein the first supply line supplies the wire to the winding drum after drawing and straightening the wire to make it easier to wind around the winding drum in the first direction, and the second supply line supplies the wire to the winding drum after drawing and straightening the wire to make it easier to wind around the winding drum in the second direction. In the sixth form of the winding device, the wire is straightened by the first or second supply line according to the winding direction of the wire on the winding drum. Therefore, winding of the wire on the winding drum can be performed more smoothly, whether winding in the first direction or the second direction. In addition, in the sixth form of the winding device, since the first supply line and the second supply line are connected in parallel to a single winding drum, the winding device can be made more compact.

[0014] [Seventh Embodiment] The winding device described in the sixth embodiment further comprises a material feeding unit that feeds out the unprocessed wire material supplied to the first supply line or the second supply line, and an upstream straightening unit that straightens the wire material fed out from the material feeding unit in the longitudinal direction, wherein the upstream straightening unit may be configured to move between a first position when the wire material is supplied to the first supply line and a second position when the wire material is supplied to the second supply line. In the seventh form of the winding device, the wire unfed from the feed section is straightened longitudinally by the upstream straightening section, and then drawn in the first or second supply line. This allows for smoother wire drawing and improved processing accuracy. Furthermore, in the seventh form of the winding device, the upstream straightening section can be shared between the first and second supply lines, further simplifying the configuration of the winding device.

[0015] The present invention can be realized in various forms other than a winding device. For example, it can be realized in the form of a winding drum, the internal structure of the winding drum, a wire processing method, a winding method, etc., that are part of a winding device. [Brief explanation of the drawing]

[0016] [Figure 1] A schematic diagram showing the configuration of the winding device. [Figure 2] A schematic perspective view showing the external configuration of the winding drum. [Figure 3] A first schematic side view showing the external configuration of the winding drum. [Figure 4] Second schematic side view showing the external configuration of the take-up drum. [Figure 5] First schematic diagram schematically showing the internal configuration of the take-up drum. [Figure 6] Second schematic diagram schematically showing the internal configuration of the take-up drum. [Figure 7] Third schematic diagram schematically showing the internal configuration of the take-up drum.

Mode for Carrying Out the Invention

[0017] 1. Embodiment: 1-1. Configuration of the take-up device: Referring to FIG. 1, the configuration of the take-up device 10 for the steel wire rod 11 in the present embodiment will be described.

[0018] The take-up device 10 performs wire drawing processing described later on the wire rod (linear steel material) 11 and winds it up in a coil shape. The take-up device 10 can switch the winding direction when winding the wire rod 11 between a first direction Ra and a second direction Rb opposite to the first direction Ra. The take-up device 10 includes a feeding section 15, an upstream correction section 20, a first supply line 31, a second supply line 32, a take-up drum 50, and a rotational drive section 51.

[0019] The feeding section 15 pays out the wire rod 11 before processing that is supplied to the first supply line 31 or the second supply line 32. The feeding section 15 supplies the wire rod 11 to the upstream correction section 20. A material coil 16 in which the wire rod 11 before processing is wound in a coil shape is held by the feeding section 15 in a state where it can rotate in the circumferential direction. When the take-up drum (50) located at the most downstream rotates by the rotational drive section 51, the wire rod 11 is pulled to the downstream side, the material coil 16 rotates in the circumferential direction, and the wire rod 11 is paid out from the feeding section 15 to the upstream correction section 20.

[0020] The upstream straightening unit 20 performs a straightening process to extend the unprocessed wire 11 supplied from the material feeding unit 15 in the longitudinal direction. The upstream straightening unit 20 is configured to transport the wire 11 by a plurality of rollers 21 that support the wire 11 from the sides. As the wire 11 passes through the upstream straightening unit 20, it is pulled in the longitudinal direction while being pressed from multiple directions by the rollers 21 of the upstream straightening unit 20. This corrects the coiling kinks in the wire 11 caused by being wound in the material coil 16.

[0021] The upstream straightening unit 20 can switch the supply destination of the wire 11 to either the first supply line 31 or the second supply line 32. The first supply line 31 and the second supply line 32 are arranged in parallel with respect to the winding drum 50 on the upstream side of the winding drum 50. The first supply line 31 supplies the wire 11 to the winding drum 50 when the wire 11 is wound onto the winding drum 50 in the first direction Ra. The second supply line 32 supplies the wire 11 to the winding drum 50 when the wire 11 is wound onto the winding drum 50 in the second direction Rb.

[0022] The upstream straightening unit 20 is configured to be movable between a first position P1 when supplying wire 11 to the first supply line 31 and a second position P2 when supplying wire 11 to the second supply line 32. The first position P1 corresponds to a position facing the upstream end of the first supply line 31, and the second position P2 corresponds to a position facing the upstream end of the second supply line 32. The upstream straightening unit 20 can move between the first position P1 and the second position P2 by moving along a rail 22 that extends in the direction of alignment of the first supply line 31 and the second supply line 32.

[0023] The first supply line 31 and the second supply line 32 are each equipped with a wire drawing section 40, an inspection section 42, and a downstream straightening section 45. The wire drawing section 40, the inspection section 42, and the downstream straightening section 45 are installed in this order from the upstream side.

[0024] The wire drawing section 40 is equipped with a die 41 through which the wire 11 passes, and performs wire drawing on the wire 11 supplied from the upstream straightening section 20. During wire drawing, the wire 11 passes through the die 41, which adjusts, for example, the size, shape, strength, and surface properties of its cross-section. The inspection section 42 is equipped with, for example, a contact sensor 43 and an ultrasonic sensor 44, which are used to inspect the condition of the wire 11 after processing.

[0025] The downstream straightening section 45 straightens the wire 11 so that it can be easily wound onto the winding drum 50. The downstream straightening section 45 is equipped with straightening rollers 46 that apply an external force to cause the wire 11 to curve while conveying the wire 11. The downstream straightening section 45 of the first supply line 31 straightens the wire 11 with the straightening rollers 46 so that it can be easily wound onto the winding drum 50 in a first direction Ra. The downstream straightening section 45 of the second supply line 32 straightens the wire 11 with the straightening rollers 46 so that it can be easily wound onto the winding drum 50 in a second direction Rb.

[0026] The winding drum 50 rotates around its central axis CX by the rotational driving force provided by the rotary drive unit 51, thereby winding the wire 11 into a coil. As described above, when the wire 11 is supplied from the first supply line 31, the winding drum 50 winds the wire 11 in the first direction Ra, and when the wire 11 is supplied from the second supply line 32, it winds the wire 11 in the second direction Rb. The configuration of the winding drum 50 will be described later.

[0027] The rotary drive unit 51 includes, for example, a motor (not shown) that generates a rotational driving force to rotate the winding drum 50. In the winding device 10, the rotary drive unit 51 rotates the winding drum 50, causing the wire 11 to be wound around the winding drum 50 and pulled, and then fed from the material feeding unit 15 to the first supply line 31 or the second supply line 32. The rotary drive unit 51 can switch the rotation direction of the winding drum 50 by a gear mechanism (not shown). The rotary drive unit 51 may also be configured to switch the rotation direction of the winding drum 50 by switching the rotation direction of the motor.

[0028] 1-2. Configuration of the reel drum: The configuration of the winding drum 50 will be explained below, with reference to Figures 2 to 7 as appropriate.

[0029] Figure 2 is a schematic perspective view showing the external configuration of the winding drum 50. Figure 3 is a schematic side view showing the outer circumferential side of the winding drum 50 when viewed in the direction facing the first gripping mechanism 61. Figure 4 is a schematic side view showing the outer circumferential side of the winding drum 50 when viewed in the direction facing the second gripping mechanism 62. In Figures 2 to 4, hatching is applied to the four gripping members 63A, 63B, 63C, and 63D, which will be described later, for convenience. Also, in Figures 3 and 4, the state in which the wire 11 is wound around the winding drum 50 is schematically shown.

[0030] As shown in Figure 2, the winding drum 50 has a cylindrical shape. Hereinafter, the direction parallel to the central axis CX of the winding drum 50 will be referred to as the "central axis direction," and the direction perpendicular to the central axis CX will be referred to as the "radial direction." In this embodiment, the winding drum 50 is positioned so that the central axis CX is parallel to the direction of gravity.

[0031] The winding drum 50 is rotatable around the central axis CX, with the central axis CX as the axis of rotation, by the rotational driving force provided by the rotational drive unit 51. As described above, the winding drum 50 can switch its rotation direction so that the wire 11 can be wound in either the first direction Ra or the second direction Rb. The first direction Ra and the second direction Rb correspond to the circumferential direction of the winding drum 50, respectively. In this embodiment, the first direction Ra is the winding direction in which the wire 11 is wound clockwise (Figure 3), and the second direction Rb is the winding direction in which the wire 11 is wound counterclockwise (Figure 4). In this specification, the winding direction of the wire 11 is the direction starting from the end of the wire 11 gripped by the first gripping mechanism 61 or the second gripping mechanism 62, which will be described below.

[0032] The outer circumferential surface of the winding drum 50 is provided with a first gripping mechanism 61 and a second gripping mechanism 62 for gripping and fixing the end of the wire 11 to be wound. The first gripping mechanism 61 and the second gripping mechanism 62 are positioned opposite each other with respect to the central axis CX. In other words, the second gripping mechanism 62 is positioned on the opposite side of the central axis CX from the first gripping mechanism 61. For convenience, in Figure 2, the second gripping mechanism 62 is shown with a dashed line.

[0033] As shown in Figure 3, the first gripping mechanism 61 grips the end of the wire 11 that is wound in the first direction Ra. Also, as shown in Figure 4, the second gripping mechanism 62 grips the end of the wire 11 that is wound in the second direction Rb.

[0034] As shown in Figure 3, when the end of the wire 11 is fixed to the side surface of the winding drum 50 by the first gripping mechanism 61, the winding drum 50 rotates so that the wire 11 is wound around the outer peripheral surface 52 of the winding drum 50 in the first direction Ra. Also, as shown in Figure 4, when the end of the wire 11 is fixed to the outer peripheral surface 52 of the winding drum 50 by the second gripping mechanism 62, the winding drum 50 rotates so that the wire 11 is wound around the outer peripheral surface 52 of the winding drum 50 in the second direction Rb. Hereafter, the region WA on the outer peripheral surface 52 of the winding drum 50 around which the wire 11 is wound will also be called the "winding region WA".

[0035] The first gripping mechanism 61 and the second gripping mechanism 62 are provided on the outer peripheral side surface 52 of the winding drum 50 at positions offset from the winding region WA in the direction of the central axis. In this embodiment, the first gripping mechanism 61 and the second gripping mechanism 62 are provided on the lower side of the winding drum 50, and the winding region WA is provided on the upper side of the first gripping mechanism 61 and the second gripping mechanism 62. The wire 11 extends diagonally from the first gripping mechanism 61 or the second gripping mechanism 62 to the winding region WA and is wound around the winding region WA.

[0036] The first gripping mechanism 61 will be described with reference to Figures 2 and 3. The first gripping mechanism 61 comprises a first gripping member 63A and a second gripping member 63B. The first gripping member 63A and the second gripping member 63B are configured to hold the wire 11 between them.

[0037] The first gripping member 63A and the second gripping member 63B are arranged to face each other and are moved by a first drive mechanism 71, which will be described later, provided inside the winding drum 50. In this embodiment, the first gripping member 63A is configured to be movable in the central axis direction, and the second gripping member 63B is configured to be movable in the radial direction. This allows the winding drum 50 to change the distance Da between the first gripping member 63A and the second gripping member 63B.

[0038] The opposing surfaces of the first gripping member 63A and the second gripping member 63B constitute a first pair of inclined surfaces 65A and 65B. In this embodiment, inclined surface 65A is formed by the upper end surface of the first gripping member 63A, and inclined surface 65B is formed by the lower end surface of the second gripping member 63B.

[0039] The first pair of inclined surfaces 65A and 65B are parallel to each other and inclined with respect to the radial direction of the winding drum 50, and grip the end of the wire 11 in a state where it extends diagonally so that it approaches the winding region WA as it moves toward the first direction Ra, which is the winding direction of the wire 11. Because the end of the wire 11 is gripped by the first pair of inclined surfaces 65A and 65B in a state where it extends diagonally with respect to the radial direction, the wire 11 can be smoothly wound around the winding region WA. The inclination angle of each inclined surface 65A and 65B with respect to the radial direction is preferably, for example, 15° or more and 35° or less.

[0040] In the first gripping mechanism 61 of this embodiment, as described above, the distance Da between the first pair of inclined surfaces 65A and 65B can be changed by moving the first gripping member 63A in the central axis direction and the second gripping member 63B in the radial direction. With both the first gripping member 63A and the second gripping member 63B moving relative to each other, the end of the wire 11 wound in the first direction Ra can be gripped more firmly.

[0041] The first pair of inclined surfaces 65A and 65B are positioned radially recessed inside the first window portion 66a provided on the outer peripheral side of the winding drum 50. The outer peripheral edge of the first window portion 66a is provided with a first guide portion 67a that guides the wire 11 extending from the first window portion 66a to the winding region WA. The first guide portion 67a has a first inclined side wall surface 68a that extends from the winding region WA toward the first pair of inclined surfaces 65A and 65B and is inclined radially inward. The provision of the first guide portion 67a suppresses bending of the wire 11 when it is wound in the first direction Ra from the first gripping mechanism 61 toward the winding region WA, allowing the wire 11 to be wound more smoothly.

[0042] The second gripping mechanism 62 will be described with reference to Figures 2 and 4. The configuration of the second gripping mechanism 62 is basically almost the same as that of the first gripping mechanism 61, except that it has been modified to accommodate winding of the wire 11 in the second direction Rb.

[0043] The second gripping mechanism 62 comprises a third gripping member 63C and a fourth gripping member 63D. The third gripping member 63C and the fourth gripping member 63D are configured to hold the wire 11 between them. The third gripping member 63C and the fourth gripping member 63D are arranged to face each other and are moved by a second drive mechanism 72, which will be described later and is provided in the winding drum 50. In this embodiment, the third gripping member 63C is configured to be movable in the central axis direction, and the fourth gripping member 63D is configured to be movable in the radial direction. As a result, the distance Db between the third gripping member 63C and the fourth gripping member 63D can be changed in the winding drum 50.

[0044] The opposing surfaces of the third gripping member 63C and the fourth gripping member 63D constitute a second pair of inclined surfaces 65C and 65D. In this embodiment, the inclined surface 65C is formed by the upper end surface of the third gripping member 63C, and the inclined surface 65D is formed by the lower end surface of the fourth gripping member 63D.

[0045] The second pair of inclined surfaces 65C and 65D are parallel to each other and inclined in the opposite direction to the second pair of inclined surfaces 65C and 65D of the first gripping mechanism 61 with respect to the radial direction of the winding drum 50. The second pair of inclined surfaces 65C and 65D grip the end of the wire 11 in a state where it extends diagonally so that it approaches the winding region WA as it moves toward the second direction Rb, which is the winding direction of the wire 11. This makes the winding of the wire 11 smoother, similar to the first pair of inclined surfaces 65A and 65B. The inclination angle of the second pair of inclined surfaces 65C and 65D with respect to the radial direction is preferably, for example, 15° or more and 35° or less.

[0046] In the second gripping mechanism 62 of this embodiment, as described above, the distance Db between the second pair of inclined surfaces 65C and 65D can be changed by moving the third gripping member 63C in the central axis direction and the fourth gripping member 63D in the radial direction. With a configuration in which both the third gripping member 63C and the fourth gripping member 63D move, the end of the wire 11 wound in the second direction Rb can be gripped more firmly.

[0047] The second pair of inclined surfaces 65C and 65D are positioned radially recessed inside the second window portion 66b provided on the outer peripheral side of the winding drum 50. The outer peripheral edge of the second window portion 66b is provided with a second guide portion 67b that guides the wire 11 extending from the second window portion 66b to the winding region WA. The second guide portion 67b has a second inclined side wall surface 68b that extends radially inward from the winding region WA toward the second gripping mechanism 62. The provision of the second guide portion 67b suppresses bending of the wire 11 when it is wound in the second direction Rb from the second gripping mechanism 62 toward the winding region WA, allowing the wire 11 to be wound more smoothly.

[0048] As described above, in the winding device 10 of this embodiment, the first gripping mechanism 61 and the second gripping mechanism 62 allow the end of the wire 11 to be more securely fixed to the outer surface of the winding drum 50, whether the wire 11 is wound onto the winding drum 50 in the first direction Ra or in the second direction Rb. Therefore, the wire 11 can be wound more stably and smoothly regardless of the winding direction of the wire 11 onto the winding drum 50.

[0049] Referring to Figures 5 to 7, the first drive mechanism 71 that drives the first gripping mechanism 61 and the second drive mechanism 72 that drives the second gripping mechanism 62 will be described. Figure 5 schematically shows the internal structure of the winding drum 50 when viewed in a direction in which the first gripping mechanism 61 and the second gripping mechanism 62 are arranged symmetrically on either side of the central axis CX. Figures 6 and 7 schematically show the internal structure of the winding drum 50 when viewed from the 6-6 and 7-7 arrows shown in Figure 5, respectively. In Figures 5 to 7, different hatching is used for each component constituting the first drive mechanism 71 and the second drive mechanism 72.

[0050] Refer to Figure 5. The first drive mechanism 71 changes the distance Da between the first pair of inclined surfaces 65A and 65B of the first gripping mechanism 61 by moving the first gripping member 63A and the second gripping member 63B, respectively. The first drive mechanism 71 is housed in half of the area of ​​the winding drum 50 that is located on the side of the first gripping mechanism 61 with respect to the central axis CX.

[0051] Furthermore, the second drive mechanism 72 changes the distance Db between the second pair of inclined surfaces 65C and 65D by moving the third gripping member 63C and the fourth gripping member 63D, respectively. The second drive mechanism 72 is housed within the winding drum 50 in half of the region located on the second gripping mechanism 62 side with respect to the central axis CX.

[0052] Thus, in the winding drum 50, the first drive mechanism 71 and the second drive mechanism 72, which drive the first gripping mechanism 61 and the second gripping mechanism 62 respectively, are compactly integrated within the winding drum 50. Therefore, the size of the winding device 10, which can switch the winding direction of the wire 11, is kept from increasing.

[0053] The first drive mechanism 71 includes a drive unit 73A for moving the first gripping member 63A in the central axis direction, and a drive unit 73B for moving the second gripping member 63B in the radial direction. The second drive mechanism 72 includes a drive unit 73C for moving the third gripping member 63C in the central axis direction, and a drive unit 73D for moving the fourth gripping member 63D in the radial direction. The drive units 73A, 73B, 73C, and 73D will be described below.

[0054] First, with reference to Figures 5 and 6, the drive unit 73A for the first gripping member 63A of the first drive mechanism 71 and the drive unit 73C for the third gripping member 63C of the second drive mechanism 72 will be described.

[0055] The drive unit 73A for the first gripping member 63A is connected to the first gripping member 63A and includes an extension / retraction mechanism 74A for the first gripping member 63A that extends and retracts radially. The drive unit 73A for the first gripping member 63A also includes a first motion conversion mechanism 80a that moves the first gripping member 63A in the central axis direction in accordance with the radial extension and retraction of the extension / retraction mechanism 74A for the first gripping member 63A.

[0056] In this embodiment, the telescopic mechanism 74A for the first gripping member 63A is composed of a pair of hydraulic cylinders 75 and 76. As shown in Figure 6, the pair of hydraulic cylinders 75 and 76 are arranged in parallel radially with respect to the first gripping member 63A. In the telescopic mechanism 74A for the first gripping member 63A, the tip portions 74t of the rods of the pair of hydraulic cylinders 75 and 76 are displaced in a direction toward the first gripping member 63A. The pair of hydraulic cylinders 75 and 76 extend and retract in the same phase and by the same length.

[0057] The first motion conversion mechanism 80a comprises a first tip member 81 and a first holding member 82. The first tip member 81 is attached to the tip portion 74t of the telescopic mechanism 74A for the first gripping member 63A. The first tip member 81 has a first tip inclined surface 81s.

[0058] The first tip inclined surface 81s is inclined to face the tip side in the extension direction, that is, radially outward, and also in the direction from the first gripping member 63A toward the second gripping member 63B. In this embodiment, the "direction from the first gripping member 63A toward the second gripping member 63B" corresponds to the upward direction. The tip portion 74t of the extension mechanism 74A for the first gripping member 63A is inserted inside the first tip member 81 and overlaps with the first tip inclined surface 81s in the direction of the central axis.

[0059] The first holding member 82 holds the first gripping member 63A and moves together with the first gripping member 63A in the direction of the central axis. In this embodiment, the first holding member 82 is positioned below the first gripping member 63A and supports the first gripping member 63A from below. Although not shown in the illustrations and detailed description, the winding drum 50 is provided with rails that guide the movement of the first gripping member 63A along the central axis.

[0060] The first retaining member 82 has a first sliding surface 82s that is configured to be slidable with respect to the first tip inclined surface 81s of the first tip member 81 and to surface contact with the first tip inclined surface 81s. In this embodiment, the first retaining member 82 is positioned above the first tip member 81, and the first sliding surface 82s is positioned to surface contact with the first tip inclined surface 81s from above.

[0061] In the drive unit 73A for the first gripping member 63A, when the telescopic mechanism 74A for the first gripping member 63A extends, the first tip member 81 moves radially outward. As a result, the first sliding surface 82s of the first holding member 82 slides on the first tip inclined surface 81s of the first tip member 81, and the first holding member 82 moves toward the second gripping member 63B in the central axis direction together with the first gripping member 63A.

[0062] Furthermore, when the telescopic mechanism 74A for the first gripping member 63A retracts, the first tip member 81 moves radially inward. As a result, the first sliding surface 82s of the first retaining member 82 slides on the first tip inclined surface 81s of the first tip member 81, and the first retaining member 82 moves along the central axis with the first gripping member 63A, separating from the second gripping member 63B.

[0063] The drive unit 73C for the third gripping member 63C of the second drive mechanism 72 has basically the same configuration as the drive unit 73A for the first gripping member 63A, and moves the third gripping member 63C in the central axis direction by the radially expanding and contracting mechanism 74C for the third gripping member 63C. The telescopic mechanism 74C for the third gripping member 63C is almost the same as the telescopic mechanism 74A for the first gripping member 63A, except that the direction of expansion and contraction is opposite to that of the telescopic mechanism 74A for the first gripping member 63A.

[0064] The drive unit 73C for the third gripping member 63C comprises an extension / retraction mechanism 74C for the third gripping member 63C that extends and retracts radially, and a second motion conversion mechanism 80b that moves the third gripping member 63C in the central axis direction in accordance with the extension and retraction of the extension / retraction mechanism 74C for the third gripping member 63C. The extension / retraction mechanism 74C for the third gripping member 63C is composed of a pair of hydraulic cylinders 75 and 76 arranged in parallel with respect to the third gripping member 63C. The second motion conversion mechanism 80b is composed of a second tip member 83 and a second holding member 84.

[0065] The second end member 83 is attached to the tip portion 74t of the telescopic mechanism 74C for the third gripping member 63C. The second end member 83 has a second tip inclined surface 83s that faces in the opposite direction to the first end member 81 of the drive unit 73A for the first gripping member 63A, with the central axis CX in between. The second holding member 84 holds the third gripping member 63C and has a second sliding surface 84s that slides on the second tip inclined surface 83s of the second end member 83.

[0066] In the second motion conversion mechanism 80b, when the telescopic mechanism 74C for the third gripping member 63C extends or retracts radially, the second tip member 83 is displaced radially accordingly. When the second tip member 83 is displaced radially, the second sliding surface 84s of the second holding member 84 slides on the second tip inclined surface 83s of the second tip member 83, causing the second holding member 84 to move in the central axis direction together with the third gripping member 63C.

[0067] Thus, in the drive unit 73A for the first gripping member 63A, a simple configuration combining the first tip member 81 and the first holding member 82 realizes a mechanism that moves the first gripping member 63A in the central axis direction by the radial expansion and contraction of the telescopic mechanism 74A for the first gripping member 63A. Similarly, in the drive unit 73C for the third gripping member 63C, a simple configuration combining the second tip member 83 and the second holding member 84 realizes a mechanism that moves the third gripping member 63C in the central axis direction by the radial expansion and contraction of the telescopic mechanism 74C for the third gripping member 63C.

[0068] Furthermore, as described above, in the drive unit 73A for the first gripping member 63A, the tip portion 74t of the telescopic mechanism 74A for the first gripping member 63A is inserted into the first tip member 81. As a result, the tip portion 74t of the telescopic mechanism 74A for the first gripping member 63A and the first tip inclined surface 81s of the first tip member 81 overlap in the direction of the central axis. Similarly, in the drive unit 73C for the third gripping member 63C, the tip portion 74t of the telescopic mechanism 74C for the third gripping member 63C is inserted into the second tip member 83. As a result, the tip portion 74t of the telescopic mechanism 74C for the third gripping member 63C and the second tip inclined surface 83s of the second tip member 83 overlap in the direction of the central axis.

[0069] With this configuration, the first motion conversion mechanism 80a can be made smaller by the amount that the tip portion 74t of the telescopic mechanism 74A for the first gripping member 63A is inserted into the first tip member 81. Similarly, the second motion conversion mechanism 80b can be made smaller by the amount that the tip portion 74t of the telescopic mechanism 74C for the third gripping member 63C is inserted into the second tip member 83. Therefore, it is made even easier to house the drive unit 73A for the first gripping member 63A, which constitutes the first drive mechanism 71, and the drive unit 73C for the third gripping member 63C, which constitutes the second drive mechanism 72, within the winding drum 50.

[0070] Furthermore, in the first drive mechanism 71 and the second drive mechanism 72, the telescopic mechanism 74A for the first gripping member 63A and the telescopic mechanism 74C for the third gripping member 63C are both composed of a pair of hydraulic cylinders 75 and 76. With this configuration, radial force can be transmitted in parallel to the motion conversion mechanisms 80a and 80b by the two hydraulic cylinders 75 and 76. Therefore, the telescopic mechanism 74A for the first gripping member 63A and the telescopic mechanism 74C for the third gripping member 63C can be miniaturized while increasing the driving force for moving the first gripping member 63A and the third gripping member 63C. As a result, it becomes even easier to house both the first drive mechanism 71 and the second drive mechanism 72 within the winding drum 50.

[0071] Next, with reference to Figures 5 and 7, the drive unit 73B for the second gripping member 63B of the first drive mechanism 71 and the drive unit 73D for the fourth gripping member 63D of the second drive mechanism 72 will be described.

[0072] As shown in Figure 5, the drive unit 73B for the second gripping member 63B is positioned on the second gripping member 63B side relative to the drive unit 73A for the first gripping member 63A in the central axis direction. In this embodiment, the drive unit 73B for the second gripping member 63B is positioned above the drive unit 73A for the first gripping member 63A. The drive unit 73B for the second gripping member 63B moves the second gripping member 63B radially relative to the first gripping member 63A.

[0073] The drive unit 73B for the second gripping member 63B is connected to the second gripping member 63B and includes an extension / retraction mechanism 74B for the second gripping member 63B that extends and retracts radially to move the second gripping member 63B radially. As shown in Figure 7, the extension / retraction mechanism 74B for the second gripping member 63B is arranged in parallel with the second gripping member 63B and extends and retracts in a direction parallel to the direction of movement of the second gripping member 63B. In this embodiment, the extension / retraction mechanism 74B for the second gripping member 63B is composed of a single hydraulic cylinder 77.

[0074] The drive unit 73B for the second gripping member 63B further comprises a first connecting member 91 and a first guide bar 94. The first connecting member 91 connects the rod of the telescopic mechanism 74B for the second gripping member 63B to the second gripping member 63B. This allows the second gripping member 63B to move radially in accordance with the radial extension and contraction of the telescopic mechanism 74B for the second gripping member 63B.

[0075] The first connecting member 91 is provided with a through hole 93 through which the first guide bar 94 is inserted. The first guide bar 94, together with the telescopic mechanism 74B for the second gripping member 63B, is positioned parallel to the direction of movement of the second gripping member 63B. The first guide bar 94 guides the movement of the first connecting member 91 due to the extension and retraction of the telescopic mechanism 74B for the second gripping member 63B. The movement of the first connecting member 91 due to the extension and retraction of the telescopic mechanism 74B for the second gripping member 63B is stabilized by the guidance of the first guide bar 94, thereby making the movement of the second gripping member 63B smoother.

[0076] The drive unit 73D for the fourth gripping member 63D basically has the same configuration as the drive unit 73B for the second gripping member 63B. The drive unit 73D for the fourth gripping member 63D is positioned on the fourth gripping member 63D side relative to the drive unit 73C for the third gripping member 63C in the central axis direction. In this embodiment, the drive unit 73D for the fourth gripping member 63D is positioned above the drive unit 73C for the third gripping member 63C. The drive unit 73D for the fourth gripping member 63D moves the fourth gripping member 63D radially relative to the third gripping member 63C.

[0077] The drive unit 73D for the fourth gripping member 63D is connected to the fourth gripping member 63D and includes an extension / retraction mechanism 74D for the fourth gripping member 63D that extends and retracts radially to move the fourth gripping member 63D radially. As shown in Figure 7, the extension / retraction mechanism 74D for the fourth gripping member 63D is arranged in parallel with the fourth gripping member 63D and extends and retracts in a direction parallel to the direction of movement of the fourth gripping member 63D. In this embodiment, the extension / retraction mechanism 74D for the fourth gripping member 63D is composed of a single hydraulic cylinder 77. Note that, when viewed in the direction of the central axis, the extension / retraction mechanism 74D for the fourth gripping member 63D extends and retracts in the same direction as the extension / retraction mechanism 74B for the second gripping member 63B of the first gripping mechanism 61.

[0078] The drive unit 73D for the fourth gripping member 63D further comprises a second connecting member 95 and a second guide bar 98. The second connecting member 95 has a configuration similar to that of the first connecting member 91 of the drive unit 73B for the second gripping member 63B, and connects the rod of the telescopic mechanism 74D for the fourth gripping member 63D to the fourth gripping member 63D so that the second gripping member 63B can be moved radially.

[0079] The second guide bar 98 has a configuration similar to that of the first guide bar 94 of the drive unit 73B for the second gripping member 63B. The second guide bar 98 is arranged in parallel with the telescopic mechanism 74D for the fourth gripping member 63D and is inserted through the through hole 97 of the second connecting member 95. This configuration allows the movement of the second connecting member 95 to be guided and stabilized by the second guide bar 98, and the movement of the fourth gripping member 63D to be made smoother.

[0080] As described above, in the winding drum 50 of this embodiment, the four drive units 73A, 73B, 73C, and 73D that drive the first gripping mechanism 61 and the second gripping mechanism 62 are compactly arranged and housed within the winding drum 50, thereby suppressing an increase in the size of the winding drum 50. As a result, a winding device 10 capable of winding the wire 11 in the first direction Ra and the second direction Rb is realized with a simple configuration.

[0081] 1-3. Summary: According to the winding device 10 of this embodiment, by providing a first gripping mechanism 61 and a second gripping mechanism 62 on the winding drum 50, the wire 11 can be wound around the winding drum 50 in a first direction or in a second direction. Furthermore, the drive mechanism that drives the first gripping mechanism 61 and the second gripping mechanism 62 can be compactly integrated within the winding drum 50. Therefore, the winding direction of the wire 11 can be easily switched with a simple configuration.

[0082] 2. Other embodiments: The present invention is not limited to the configurations of the embodiments described above, and can also be realized in the following forms, for example. Any configuration described herein as other embodiments is, like the embodiments described above, positioned as an example of a form for carrying out the present invention.

[0083] 2-1. Other Embodiment 1: The first pair of inclined surfaces 65A and 65B of the first gripping mechanism 61 only need to be configured so that at least one of them is movable. Therefore, only one of the first pair of inclined surfaces 65A and 65B may be configured to be movable. In this case, either the drive unit 73A for the first gripping member 63A or the drive unit 73B for the second gripping member 63B of the first drive mechanism 71 can be omitted. Similarly, the second pair of inclined surfaces 65C and 65D of the second gripping mechanism 62 only need to be configured so that at least one of them is movable, and only one of the first pair of inclined surfaces 65A and 65B may be configured to be movable. In this case, either the drive unit 73C for the third gripping member 63C or the drive unit 73D for the fourth gripping member 63D of the second drive mechanism 72 can be omitted. Alternatively, one of the second pair of inclined surfaces 65C, 65D can be formed by a fixed wall surface provided on the outer peripheral side surface 52 of the winding drum 50.

[0084] 2-2. Other Embodiments 2: The telescopic mechanism 74A for the first gripping member 63A of the first drive mechanism 71, and the telescopic mechanism 74C for the third gripping member 63C of the second drive mechanism 72, may each be composed of a single hydraulic cylinder. Furthermore, the telescopic mechanisms of the first drive mechanism 71 and the second drive mechanism 72 may be composed of telescopic devices other than hydraulic cylinders. In addition, the first drive mechanism 71 and the second drive mechanism 72 may be configured to change the separation distance Da between the first pair of inclined surfaces 65A and 65B, and the separation distance Db between the second pair of inclined surfaces 65C and 65D, by mechanisms other than the telescopic mechanisms.

[0085] 2-3. Other Embodiments 3: In the winding device 10, the first supply line 31 and the second supply line 32 may be omitted. The winding device 10 may be configured so that the wire 11 unwound from the material feeding section 15 is wound onto the winding drum 50 without being straightened. Even when the first supply line 31 and the second supply line 32 are provided, an upstream straightening section 20 may be provided for each of the first supply line 31 and the second supply line 32.

[0086] 2-4. Other Embodiments 4: In the above embodiment, the winding drum 50 may be positioned so that its central axis direction does not coincide with the direction of gravity. Alternatively, the winding drum 50 may be positioned so that its central axis direction coincides with the horizontal direction. [Explanation of Symbols]

[0087] 10...Winding device, 11...Wire, 15...Material feeding section, 16...Material coil, 20...Upstream straightening section, 21...Roller, 22...Rail, 31...First supply line, 32...Second supply line, 40...Wire drawing section, 41...Die, 42...Inspection section, 43...Contact sensor, 44...Ultrasonic sensor, 45...Downstream straightening section, 46...Straightening roller, 50...Winding drum, 51...Rotating drive section, 52...Outer circumference side, 61...First gripping mechanism, 62...Second gripping mechanism, 63A ...First gripping member, 63B...Second gripping member, 63C...Third gripping member, 63D...Fourth gripping member, 65A, 65B...First pair of inclined surfaces, 65C, 65D...Second pair of inclined surfaces, 66a...First window section, 66b...Second window section, 67a...First guide section, 67b...Second guide section, 68a...First inclined side wall surface, 68b...Second inclined side wall surface, 71...First drive mechanism, 72...Second drive mechanism, 73A...Drive unit for the first gripping member, 73B...Drive unit for the second gripping member 73C…Drive unit for the third gripping member, 73D…Drive unit for the fourth gripping member, 74A…Telescopic mechanism for the first gripping member, 74B…Telescopic mechanism for the second gripping member, 74C…Telescopic mechanism for the third gripping member, 74D…Telescopic mechanism for the fourth gripping member, 74t…Tip of the telescopic mechanism, 75,76…Pair of hydraulic cylinders, 77…Hydraulic cylinder, 80a…First motion conversion mechanism, 80b…Second motion conversion mechanism, 81…First tip member, 81s… First tip inclined surface, 82...First holding member, 82s...First sliding surface, 83...Second tip member, 83s...Second tip inclined surface, 84...Second holding member, 84s...Second sliding surface, 91...First connecting member, 93...Through hole, 94...First guide bar, 95...Second connecting member, 97...Through hole, 98...Second guide bar, CX...Central axis, Da...Separation distance, Db...Separation distance, P1...First position, P2...Second position, Ra...First direction, Rb...Second direction, WA...Winding area

Claims

1. A winding device for steel wire, A winding drum having a cylindrical shape and configured such that the wire is wound around the winding region on the outer surface when rotated around a central axis, A first gripping mechanism having a first pair of inclined surfaces arranged facing each other on the outer peripheral surface, configured to have a variable separation distance between them, and which grips the end of the wire material wound in a first direction relative to the winding region, such that it approaches the winding region as it moves in the first direction, with the inclined surfaces extending diagonally with respect to the radial direction of the winding drum. The second gripping mechanism has a second pair of inclined surfaces on its outer peripheral side, which are positioned opposite the first gripping mechanism on the opposite side of the central axis, and whose separation distance from each other is variable, and which grip the end of the wire that is wound in a second direction relative to the winding region, with the wire extending diagonally with respect to the radial direction so that it approaches the winding region as it moves in the second direction, A first drive mechanism is housed in the region of the winding drum on the side of the first gripping mechanism relative to the central axis, and moves at least one of the first pair of inclined surfaces to change the separation distance, A second drive mechanism is housed in the region of the winding drum on the side of the second gripping mechanism relative to the central axis, and moves at least one of the second pair of inclined surfaces to change the separation distance, A rotational drive unit is provided which rotational driving force is applied to the winding drum and which is configured to switch the rotation direction of the winding drum, A winding device equipped with a winding mechanism.

2. A winding device according to claim 1, The first gripping mechanism has a first gripping member and a second gripping member arranged to face each other in the direction of the central axis, and the first pair of inclined surfaces are formed by the faces of the first gripping member and the second gripping member. The first drive mechanism comprises an extension / contraction mechanism for the first gripping member connected to the first gripping member and extending and retracting in the radial direction, and a first motion conversion mechanism that moves the first gripping member in the central axis direction in accordance with the radial extension / contraction of the extension / contraction mechanism for the first gripping member. The second gripping mechanism has a third gripping member and a fourth gripping member arranged to face each other in the direction of the central axis, and the second pair of inclined surfaces are formed by the faces of the third gripping member and the fourth gripping member. The winding device comprises a second drive mechanism connected to the third gripping member and comprising an extension / retraction mechanism for the third gripping member that extends and retracts in the radial direction, and a second motion conversion mechanism that moves the third gripping member in the central axis direction in accordance with the radial extension and retraction of the extension / retraction mechanism for the third gripping member.

3. A winding device according to claim 2, The first motion conversion mechanism comprises a first tip member connected to the tip of the telescopic mechanism for the first gripping member, having a first tip inclined surface that faces radially outward and toward the second gripping member from the first gripping member, and a first holding member that holds the first gripping member and moves toward the second gripping member toward the second gripping member toward the second gripping member toward the first gripping member toward the second gripping member toward the first gripping member, sliding on the first tip inclined surface toward the first gripping member toward the second gripping member toward the first gripping member, The tip of the telescopic mechanism for the first gripping member is inserted into the first tip member so as to overlap the first tip inclined surface with the central axis direction. The second motion conversion mechanism comprises a second tip member connected to the tip of the telescopic mechanism for the third gripping member, having a second tip inclined surface that faces radially outward and toward the fourth gripping member from the third gripping member, and a second holding member that holds the third gripping member and, when the telescopic mechanism for the third gripping member is extended, slides along the second tip inclined surface and moves toward the fourth gripping member together with the third gripping member in the direction of the central axis, A winding device in which the tip of the telescopic mechanism for the third gripping member is inserted into the second tip member so as to overlap with the second tip inclined surface in the direction of the central axis.

4. A winding device according to claim 2 or claim 3, The first drive mechanism further includes a drive unit for the second gripping member, which is positioned on the second gripping portion side relative to the telescopic mechanism for the first gripping member in the central axis direction, and moves the second gripping member radially relative to the first gripping member. The winding device further comprises a second drive mechanism positioned on the fourth gripping portion side relative to the extension / retraction mechanism for the third gripping member in the central axis direction, and a drive unit for the fourth gripping member that moves the fourth gripping member radially relative to the third gripping member.

5. A winding device according to claim 1, The first pair of inclined surfaces are located in a position that is recessed in the radial direction inside the first window portion provided on the outer peripheral side surface of the winding drum. The outer periphery of the first window portion has a first inclined side wall surface that slopes toward the first window portion from the winding region, and a first guide portion is provided that guides the wire extending from the first window portion toward the winding region. The second pair of inclined surfaces are located in a position that is recessed in the radial direction inside the second window portion provided on the outer peripheral side surface of the winding drum. A winding device is provided, wherein the outer periphery of the second window portion has a second inclined side wall surface that extends from the winding region toward the second window portion and is inclined radially inward, and a second guide portion is provided for guiding the wire extending from the second window portion toward the winding region.

6. A winding device according to claim 1, A first supply line that supplies the wire to the winding drum when the wire is wound onto the winding drum in the first direction, and a second supply line that supplies the wire to the winding drum when the wire is wound onto the winding drum in the second direction, are arranged in parallel. The first supply line applies a wire drawing process to the wire material and a straightening process to make it easier to wind it around the winding drum in the first direction, and then supplies it to the winding drum. The second supply line is a winding device that supplies the wire to the winding drum after performing a wire drawing process on the wire and straightening the wire to make it easier to wind it around the winding drum in the second direction.

7. The winding device according to claim 6, further, A material feeding unit that feeds out the wire material before processing that is supplied to the first supply line or the second supply line, An upstream straightening unit performs a straightening process to extend the wire material unfed from the aforementioned material feeding unit in the longitudinal direction, Equipped with, The winding device is configured such that the upstream straightening section is movable between a first position when supplying the wire to the first supply line and a second position when supplying the wire to the second supply line.

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