JP2007314259A - Brake device of reel for delivering wire, and cable bead manufacturing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a brake device capable of delivering a wire on the whole while alternately performing the winding and the unwinding of the cable while the tension is applied to the wire with a simple constitution and without occupying any large place, and a cable bead manufacturing device using the brake device. <P>SOLUTION: In a cable bead manufacturing device for delivering side strands and spirally winding them around a cable of a core ring while rotating the core ring in the circumferential direction and revolving a reel, a brake device 20 such as a friction brake for loading the tension on the side strands to be delivered by applying the brake to the rotation of the reel. A coil spring 24 is mounted so as to urge a friction plate 21 on a reel shaft 10 side of the brake device 20 in the reel unwinding direction, the reel 9 is urged in the unwinding direction, and the tension to the unwinding side is loaded on the delivered side strands W. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a brake device for a reel for reeling out a striated wire, and in particular, a striated wire that can be fed out as a whole while alternately feeding and rewinding in a state where tension is applied to the striated member. The present invention relates to a body reel reel brake device and a cable bead manufacturing apparatus using the brake device.

As an apparatus for manufacturing cable beads for rubber tires for vehicles, the reel is revolved around the circumference of the core ring while rotating the core ring in the circumferential direction. In the cable bead manufacturing apparatus, the distance between the winding point of the core ring and the winding point of the reel is small when the reel comes out from the inside of the core ring. When the reel enters from the outside to the inside of the core ring, the distance between the winding point and the reel unwinding point is shortened, so the motor actively rotates the reel in the unwinding direction. In the past, it has been proposed that the side wire does not sag between the winding point and the unwinding point by making the rotation speed variable. Is (e.g., see Patent Document 1.).
JP 2001-47169 A

  However, by revolving the reel while rotating the core ring in the circumferential direction and winding the side strands spirally around the wire of the core ring, by rotating the reel with a motor and making the number of rotations variable, The above-described conventional apparatus in which the side wires do not sag requires a motor for driving the reel, and a rocking mechanism or the like that makes the number of rotations of the reel variable by swinging the motor is necessary. Thus, the device configuration is complicated and takes up space. Also, with this apparatus, it is difficult to wind the side strands around the core ring under constant tension, and it is impossible to obtain a cable bead with high product accuracy without winding irregularities.

  In order to eliminate winding unevenness, it is necessary to wind the drawn-out side strand around the core ring under a certain tension. For this purpose, for example, a brake is applied to the rotation of the reel, and tension is applied to the drawn-out side strand. It is conceivable to provide a braking device for loading. However, simply providing such a brake device increases the distance between the winding point of the core ring and the reeling-out point of the reel when the reel goes out from the inside of the core ring, and the side wire is fed out. At that time, the tension is applied to the side wires by the operation of the brake device. On the contrary, when the reel enters from the outside of the core ring to the inside, the distance between the winding point and the reel unwinding point becomes short. Not only can the tension not be maintained, but unless the reel is driven with variable rotation as in the above-described conventional apparatus, the side strands will be damaged unless the reel is rewound.

  The present invention solves such problems, has a simple configuration, does not take up space, and can brake the entire linear body while feeding and rewinding alternately while the tension is applied to the linear body. And it aims at providing the cable bead manufacturing apparatus which uses this brake device.

  The brake device according to the present invention is a brake device that applies a tension to the reel that is fed out by applying a brake to the reel for reeling out the reel, and is attached to a reel shaft that rotatably supports the reel. The fixed side member, the movable side member mounted on the reel, and a brake element for braking the relative movement between the fixed side member and the movable side member. The structure is such that the tension toward the rewinding side is applied to the wire body that is urged in the rewinding direction and is fed out.

  In this brake device, for example, a core ring rotating mechanism that rotates a core ring formed by forming a core wire in a ring shape in the ring circumferential direction, and a reel wound with side strands (wires) can be rotated about a reel shaft. A reel revolving drive mechanism that supports and revolves around the circumference of the core ring, revolves the reel while rotating the core ring in the circumferential direction, and draws out side strands (wires) from the reel to surround the core ring It is suitable for use in a cable bead manufacturing apparatus that is wound in a spiral shape.

  The brake device may be a friction brake, a hysteresis brake, an electromagnetic brake, or the like. Further, the means for urging the fixed side member in the striated body unwinding direction and applying a tension to the striated body on the rewinding side may be one using a coil spring, a weight, air, etc. It may be a forcible drive mechanism that transmits a driving force toward the rewinding side to the fixed side member.

  In this way, in the brake device that brakes the rotation of the reel for feeding the wire rods such as the side strands for cable beads and applies tension to the drawn wire rods, the fixed member can be freely rotated with respect to the reel shaft. And the striated body is biased by the braking force when the reel rotates in the unwinding direction. When the rotation in the feeding direction is stopped, the wire body can be rewound under tension by the urging force transmitted in the unwinding direction transmitted to the fixed side member, and the wire body is loaded with tension. The wire rod can be fed out as a whole while alternately feeding and unwinding in the state. For example, in the manufacture of cable beads, the side wires are always wound around the core ring under tension. Can be attached, it is possible to obtain a high no wind irregularity precision products. And the mechanism for that can be simple and space-saving.

  Thus, according to the present invention, the wire body can be fed out as a whole while alternately feeding and unwinding in a state where tension is applied to the wire body. For example, in the manufacture of cable beads, The side strands can be wound around the core ring under constant tension, and a highly accurate product free from winding unevenness can be obtained. And the mechanism for that can be simple and space-saving.

(First embodiment)
1 to 4 show a first embodiment of the present invention. 1 is a plan view showing a schematic mechanism of the cable bead manufacturing apparatus, FIG. 2 is a front view showing the schematic mechanism of the cable bead manufacturing apparatus, FIG. 3 is a longitudinal sectional view of the brake device, and FIG. 4 is a rewinding mechanism of the brake device. It is the cross-sectional view (a) at the time of unwinding which shows a structure and operation | movement, and the cross-sectional view (b) at the time of feeding.

  In the cable bead manufacturing apparatus of this embodiment, a plurality of guide rollers 2 for supporting a rotating disk supported by the vertical frame 1 of the apparatus main body are arranged at equal intervals along the circumference (10 in the example shown, however, The number of the rollers may be changed as appropriate.) A plurality of guide rollers 2 support a rotating disk 4 having a donut-shaped rotating disk shape and having a disk drive gear 3 on the inner periphery thereof.

  The rotating disk 4 is rotated at a predetermined rotational speed by the rotation of a motor (not shown) being transmitted to the disk driving gear 3 via a flyer driving gear (not shown).

  A sun gear (fixed external gear) 5 is installed on the vertical frame 1 of the apparatus main body so that the axis passes through the rotation center of the rotary disk 4. A rotating driven gear (reel rotating shaft gear) 6 is supported on the rotating disk 4 with a position deviated from the center of rotation as a rotating shaft (spinning shaft), and the driven gear (reel rotating shaft gear) is supported. ) Two planetary gears 7 are rotatably supported so as to mesh with 6 and with the sun gear 5 to form a planetary gear mechanism.

  A reel shaft support bracket 8 is fixed to the front surface of the driven gear (reel rotation shaft gear) 6, and the reel shaft 10 that rotatably supports the reel 9 is rotated by the reel shaft support bracket 8 in the direction of the rotation axis of the rotary disk 4. It is supported in a posture substantially orthogonal to.

  The sun gear 5 is provided with a radial slit 11 extending horizontally from the center. And it connects with the slit 11 of this sun gear 5, and it enables it to take out the cable bead after manufacture while inserting one side of the core ring L of the cable bead before manufacture in the center part of the rotating disk 4. The rotary disk 4 is also provided with a radial slit 12.

  The reel 9 has a sleeve-like support member 14a with a flange that is rotatably supported by the small diameter portion of the reel shaft 10 via a bearing 13, and a donut-like connecting member that is integrally fixed to the flange portion of the sleeve member 14a. A rotating socket 14 consisting of 14b and a cylindrical mounting member 14c integrally fixed to the outer peripheral portion of the connecting member 14a is mounted and fixed, and rotates together with the rotating socket 14. In the rotary socket 14, a support member 14a is attached to the small diameter portion of the tip of the reel shaft 10 via a bearing 13, a pressing member 15 is bolted to the supporting member 14a, and the inner peripheral step portion of the supporting member 14a and the pressing member 15 are fastened. And the bearing 13 is sandwiched and fixed in the axial direction.

  A brake device 20 is provided inside the rotary socket 14 to brake the rotation of the reel 9 and to apply tension to the fed side strand.

  The brake device 20 is a friction brake, and a friction plate 21 (fixed side member) rotatably attached to the reel shaft 10 and a friction plate 22 (attached to a support member 14a of a rotary socket 14 that rotates integrally with the reel 9). The movable member) and the friction plate 22 (operation side member) on the reel 9 side are pressed against the reel shaft 10 (fixed side member) to generate a frictional force. The friction plate 21 (fixed side member), the friction plate 22 ( A frictional force adjusting spring 23 and a retaining member 24 are provided as brake elements for braking relative movement between the movable member).

  In addition, a coil spring 25 is attached to the brake device 20 so as to bias the friction plate 21 (fixed side member) on the reel shaft 10 side in the rewind direction of the reel 9. The coil spring 25 is supported by a coil spring fulcrum pin 27 erected on a fixed plate 26 whose base end is fixed to the front end step portion of the reel shaft 10, and a friction plate 21 (fixed side member) is formed on the outer periphery thereof. A friction plate 21 (fixed side member) is wound approximately 180 degrees along the guide groove 28 in a free state, and a tip is attached to a coil spring locking screw 29 erected on the bottom of the guide groove 28 of the friction plate 21 (fixed side member). It is locked. As a result, the reel 9 is urged in the rewinding direction, and a tension toward the rewinding side is applied to the fed side strand W.

  In this cable bead manufacturing apparatus, one side of the core ring L is inserted into the center of the rotating disk 4 through the slits 11 and 12 of the rotating disk 4 and the sun gear 5 at the origin position (position shown in FIG. 2). Then, the tip of the side strand W wound around the reel 9 is temporarily fixed on the core ring L.

  Then, a reel feed capstan (not shown) is operated to rotate the core ring L in the circumferential direction along a guide roller (not shown), and the reel 9 is rotated in a certain direction by rotating the rotating disk 4. The side wire W is spirally wound around the line circumference of the core ring L by revolving around the line of the core ring L while maintaining the posture.

  At that time, the driven gear (reel rotation shaft gear) 6 is the same in the direction opposite to the rotation direction of the rotary disk 4 by the rotation of the rotary disk 4 through the planetary gear mechanism composed of the sun gear 5 and the two planetary gears 7. The reel 9 rotates at the rotation speed, and thereby the reel shaft 10 rotates and the posture in which the reel shaft 10 faces in a certain direction is maintained.

  When the ring 9 revolves around the circumference of the core ring L, when the reel 9 goes out from the inside of the core ring L, the distance between the winding point T1 of the core ring L and the unwinding point D1 of the reel 9 is large. (See FIG. 1), the side wire W is fed out in a state where tension is applied by the braking force. At that time, the coil spring 25 extends to a point where the tension by the brake force and the biasing force of the coil spring 25 become equal, the friction plate 21 (fixed side member) also rotates in the feeding direction, and when the tension becomes more than that, the friction plate 21 ( The fixed side member) stops and only the reel 9 rotates (see FIG. 4B). On the other hand, when the reel 9 enters from the outside to the inside of the core ring L, the distance between the winding point T2 and the unwinding point D2 is shortened (see FIG. 1) and transmitted through the friction plate 21 (fixed side member). The reel 9 is urged in the rewinding direction by the urging force of the coil spring 25, and the tension on the rewinding side is applied to the side wire W. At that time, when the tension becomes weaker than the urging force of the coil spring 25, the friction plate 21 (fixed side member) rotates in the reverse direction, and the reel 9 rewinds the side wire W.

  In this way, the linear body is fed out as a whole while alternately feeding and unwinding while the tension is applied to the side strand W. In this way, a cable bead is manufactured. Then, the manufactured cable bead is taken out through the slits 11 and 12 at the origin position (position shown in FIG. 2).

  In this embodiment, a friction brake is used for the brake device, but a hysteresis brake, an electromagnetic brake, or the like can also be used.

  In addition to the coil spring, a weight, air, or the like can also be used as means for applying a tension toward the rewinding side to the linear body (side strand) by urging the fixed side member in the winding direction.

  Moreover, this brake device can also be used as a brake device for reels for feeding the filaments other than the cable bead manufacturing device.

(Second Embodiment)
5 and 6 show a second embodiment of the present invention. FIG. 5 is a longitudinal sectional view of a brake device in the cable bead manufacturing apparatus, and FIG. 6 is a front view showing a schematic mechanism of a main part of the cable bead manufacturing apparatus.

  The basic configuration and operation of the cable bead manufacturing apparatus of this embodiment are the same as those of the first embodiment. In the figure, the same reference numerals are given to parts common to the first embodiment.

  The brake device 30 of the cable bead manufacturing apparatus of this embodiment is a friction brake, and a friction plate 31 (fixed side member) rotatably mounted on the reel shaft 10 and a support member for the rotating socket 14 that rotates integrally with the reel 9. The friction plate 22 (movable side member) mounted on 14a and the friction plate 22 (operation side member) on the reel 9 side are pressed against the reel shaft 10 (fixed side member) to generate a frictional force, and these friction plates 21 ( A frictional force adjusting spring 23 and a retaining member 24 are provided as brake elements for braking the relative movement between the fixed member) and the friction plate 22 (movable member). Then, the friction plate 31 (fixed side member) on the reel shaft 10 side is attached to the planetary gear 7 as means for urging the reel 9 in the rewinding direction and applying a tension to the side strand W toward the rewinding side. The driving force is transmitted from the driving pulley 32 to the driven pulley 36 by the belts 34 and 35 through the idle pulley 33, the driving shaft 37 connected to the driven pulley 36 is rotated, and the driving shaft 37 is rotated through the bevel gear device 38. Is transmitted to the drive gear 39 having a small outer diameter and the driving force is transmitted from the drive gear 39 to the large gear 40 having a large diameter inner tooth fixed to the friction plate 31 (fixed side member). A forcible drive mechanism that forcibly drives the member to the rewind side is provided. As a result, the reel 9 is urged in the rewinding direction, and a tension toward the rewinding side is always applied to the fed side wire W in balance with the braking force.

  In this embodiment, a friction brake is used as the brake device, but a hysteresis brake, an electromagnetic brake, or the like can also be used.

  Moreover, the brake device of this embodiment can also be used as a brake device other than the cable bead manufacturing device.

  The embodiment has been described with reference to the illustrated example, but the present invention is not limited to this and can be implemented in various ways.

It is a top view which shows the schematic mechanism of the cable bead manufacturing apparatus of the 1st Embodiment of this invention. It is a front view which shows the schematic mechanism of the cable bead manufacturing apparatus of the 1st Embodiment of this invention. It is a longitudinal cross-sectional view of the brake device in the cable bead manufacturing apparatus of the 1st Embodiment of this invention. It is the cross-sectional view (a) at the time of unwinding which shows the structure and operation | movement of the rewinding mechanism of the brake device in the cable bead manufacturing apparatus of the 1st Embodiment of this invention, and the cross-sectional view (b) at the time of unwinding. It is a longitudinal cross-sectional view of the brake device in the cable bead manufacturing apparatus of the 2nd Embodiment of this invention. It is a front view which shows the principal part schematic mechanism of the cable bead manufacturing apparatus of the 2nd Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Vertical frame 2 Guide roller 3 Disk drive gear 4 Rotating disk 5 Sun gear (fixed external gear)
6 Driven gear (reel rotation shaft gear)
7 Planetary gear 8 Reel shaft support bracket 9 Reel 10 Reel shaft 11, 12 Slit 13 Bearing 14 Rotating socket 14a Support member 14b Connection member 14c Mounting member 15 Holding member 20, 30 Brake device 21, 31 Friction plate (fixed side member)
22 Friction plate (working side member)
23 Friction force adjustment spring (brake element)
24 Retaining member 25 Coil spring 26 Fixing plate 27 Coil spring fulcrum pin 28 Guide groove 29 Coil spring locking screw 32 Drive pulley 33 Idle pulley 33
34, 35 Belt 36 Driven pulley 37 Drive shaft 38 Bevel gear device 39 Drive gear 40 Large gear D1, D2 Unwinding point L Core ring T1, T2 Winding point W side strand

Claims (2)

A brake device that brakes the rotation of the reel for reeling out the filament and applies tension to the reel that is fed out, and a fixed-side member mounted on a reel shaft that rotatably supports the reel; A movable side member mounted on the reel; and a brake element that brakes relative movement between the fixed side member and the movable side member, the fixed side member being rotatable with respect to the reel shaft, A brake device for a reel for reeling out a wire body, characterized in that a tension toward the rewinding side is applied to the wire body that is urged in the rewind direction and fed out. A core ring rotation mechanism that rotates a core ring formed by forming a core wire in the ring circumferential direction, and a reel around which a side wire is wound is rotatably supported on a reel shaft and revolves around the core ring. In a cable bead manufacturing apparatus comprising a reel revolving drive mechanism, revolving the reel while rotating the core ring in the circumferential direction, and feeding out a side strand from the reel and spirally winding the wire around the core ring.
A brake device that brakes the rotation of the reel and applies tension to a fed side strand, a fixed side member attached to the reel shaft, a movable side member attached to the reel, A brake element that brakes relative movement between the fixed side member and the movable side member; the fixed side member is rotatable with respect to the reel shaft; A cable bead manufacturing apparatus comprising a brake device configured to apply a tension to a rewinding side to a strand.

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