JP2008195056A - Cable bead forming machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cable bead forming machine which allows winding a lateral-line wire around a core ring without slack between a delivery spot and a winding spot using no complicated mechanism for a delivery device, and forming the cable bead with high speed. <P>SOLUTION: The forming machine is equipped with; a rotating plate 3, a reel 8 arranged in offset position to the rotation center of the rotating plate 3, a gear mechanism (4, 5, 6) which rotates the reel 8 in the same direction as the rotating plate 3 while keeping its posture at a certain direction roughly parallel to a rotational axis of a core ring L, and a guide 11 which guides a lateral-line wire W between a delivery spot A on the reel 8 and a winding spot B on the core ring L. A rotational axis of a rotating circle, drew by the delivery spot A on the reel 8 side, roughly corresponds with center of the core line at the winding spot B of the core ring L; and delivers the lateral-line wire W while continually maintaining the length of the lateral-line wire W between the delivery spot A and the winding spot B roughly constant. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a cable bead molding machine, and more particularly, to a cable bead molding machine capable of performing high-speed molding by winding a side line around a core ring without sagging.

As a device 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, and the side line is drawn out from the reel and spirally wound around the core ring line. In the cable bead manufacturing apparatus, the distance between the winding position on the core ring and the feeding point on the reel becomes large when the reel goes out from the inside to the outside of the core ring. However, when the reel enters from the outside to the inside of the core ring, the distance between the winding position and the feeding point is shortened and the side line is slackened as it is. Rotate and make the rotation speed variable so that the side line does not sag between the winding point and the feeding point. It has been proposed (e.g., see Patent Document 1.).
JP 2001-47169 A

  However, in the case where the reel is revolved while rotating the core ring in the circumferential direction and the side line is spirally wound around the line of the core ring, the reel is rotated by a motor, and the rotation speed is variable, so that the side line is changed. The above-described conventional apparatus for preventing slack requires a motor for driving the reel, and also requires a swaying mechanism or the like that makes the reel rotation speed variable by swinging the motor. The equipment becomes complicated and heavy, and the cable beads cannot be molded at high speed.

  The present invention solves these problems and can wrap the side wire around the core ring so as not to sag between the feeding point and the winding point without using a complicated mechanism in the feeding device, and can form the cable bead at high speed. It aims at providing the cable bead molding machine which can do.

  The cable bead molding machine according to the present invention rotates a reel around the core wire of the core ring while rotating the core ring formed by forming the core wire into a ring shape, and feeds the side wire from the reel to feed the core wire of the core ring. A cable bead forming machine that spirally winds around, comprising a rotating plate that passes through a substantially core center at a winding position of the core ring and rotates about an axis substantially perpendicular to the rotation center line of the core ring, A reel is provided at a position that is offset from the rotation center of the rotating plate, with an axis that is substantially perpendicular to the rotation center axis of the rotating plate as a rotation center line, and the reel has a rotation center line that is substantially aligned with the rotation center axis of the core ring. A transmission mechanism such as a gear mechanism or a belt mechanism that rotates in the same direction as the rotating plate while maintaining a posture oriented in a certain parallel direction is provided, and the rotating plate rotates more than the reel support bracket. Through the guide support bracket fixed to the rotating plate at an offset position close to the center, between the feeding point on the reel that rotates while maintaining the posture in one direction as the rotating plate rotates and the winding point on the core ring A feed-out guide for guiding the side line is provided while keeping the length of the side line substantially constant at all times.

  In this cable bead forming machine, the rotation center line of the rotation circle drawn by the reel-side feeding point passes through the substantially center line center at the winding position of the core ring, and the side line between the reel-side feeding point and the winding point on the core ring By drawing the side wire while keeping the length of the wire constant at all times, the side wire can be wound around the core ring so that it does not sag between the drawing point and the winding point without using a complicated mechanism in the drawing device. As a result, the cable bead can be molded at high speed.

  According to the present invention, since the length of the side line between the reel-side feeding point and the winding point on the core ring is always kept substantially constant, the side line is set so as not to sag between the feeding point and the winding point. It can be wound around the core ring, and since the feeding device does not require a complicated mechanism, it is light and the cable bead can be molded at high speed.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 and 2 show a first embodiment of the present invention. FIG. 1 is a plan view showing a schematic mechanism of a cable bead molding machine, and FIG. 2 is a front view showing the schematic mechanism of the cable bead molding machine.

  The cable bead molding machine according to this embodiment is a device that draws a side wire W while rotating a core ring L formed by forming a core wire in a ring shape in the circumferential direction of the ring and spirally winds around the core wire of the core ring L. A plurality of guide rollers 1 for rotation support, which are supported by a vertical frame (not shown) of the main body, are arranged at equal intervals along the circumference (10 in the example shown in the figure, but the number may be changed as appropriate). And a plurality of rotation supporting guide rollers 1 rotatably support a rotating plate 3 having a donut-shaped rotating disk shape and having an internal drive gear 2 on the inner peripheral portion. The rotating plate 3 passes through the substantially center of the core line at the winding position of the core ring L and rotates with an axis that is substantially perpendicular to the rotation center line CL1 of the core ring as the rotation center line CL2.

  The rotation plate 3 is rotated at a predetermined rotation speed by the rotation of a motor (not shown) being transmitted to the internal gear 2 via a flyer drive gear (not shown).

  In addition, a sun gear (fixed external gear) 4 is installed on the vertical frame of the apparatus main body so that the axis passes through the rotation center of the rotating plate 3. The rotating plate 3 supports a rotatable driven gear (reel rotation shaft gear) 5 with the position offset from the rotation center as a rotation center axis, and meshes with the driven gear (reel rotation shaft gear) 5. In addition, two planetary gears 6 are rotatably supported so as to mesh with the sun gear 4 to form a planetary gear mechanism.

  A reel support bracket 7 is fixed at a position offset from the rotation center of the rotating plate 3 on the front surface of the driven gear (reel rotation shaft gear) 5, and is offset from the rotation center of the rotating plate 3 by the reel support bracket 7. The reel 8 is rotatably supported via a reel shaft (not shown) so that an axis substantially perpendicular to the rotation center axis CL2 of the rotary plate 3 is located at the position. The gear mechanism including the sun gear 4, the driven gear (reel rotation shaft gear) 5 and the planetary gear 6 has a posture in which the rotation center line of the reel 8 is oriented in one direction substantially parallel to the rotation center axis CL 1 of the core ring L. Rotate in the same direction as the rotating plate 3 while maintaining

  A pair of guide support brackets 9 and 10 rising in an L shape are fixed to the front surface of the rotary plate 3 at positions offset closer to the rotation center of the rotary plate 3 than the reel support bracket 7. 10 is not interfered with the reel 8 that rotates while maintaining the posture in one direction as the rotating plate 3 rotates, and between the feeding point A on the reel 8 and the winding point B on the core ring L. An arc-shaped feeding guide 11 is supported so as to guide the side line W while always keeping the length of the side line W constant.

  The sun gear 4 is provided with a radial slit 12 extending horizontally from the center so that one side of the core ring L can be inserted into the center side of the rotating plate 3 and the molded cable bead can be taken out. In addition, a radial slit 13 communicating with the slit 12 of the sun gear 5 is provided in the rotating plate 3.

  In this cable bead forming machine, first, the core ring L and the reel 8 are horizontally aligned, and the origin in which the slit 12 of the sun gear 5 and the slit 13 of the rotating plate 3 are oriented in a direction perpendicular to the rotation center line CL1 of the core ring L. At a position (position shown in FIG. 2), a part of the core ring L is inserted into the center side of the rotating plate 3 through the slits 12 and 13, and the tip of the side line W wound around the reel 8 is temporarily placed on the line of the core ring L. Fix it.

  Then, a ring feed capstan (not shown) is operated by a known core ring rotating device (not shown) to rotate the core ring L in the circumferential direction along the core ring guide roller (not shown). By rotating the plate 3, the reel 8 is rotated (revolved) in the same direction as the rotating plate 3 while maintaining a posture in which the rotation center line is oriented in a certain direction parallel to the rotation center axis CL1 of the core ring L. W is spirally wound around the core wire of the core ring L.

  At this time, the driven gear (reel rotation shaft gear) 5 is rotated in the direction opposite to the rotation direction of the rotating plate 3 by the rotation of the rotating plate 3 through the planetary gear mechanism including the sun gear 4 and the two planetary gears 6. The reel 8 rotates at the rotation speed, and maintains a posture in which the rotation center line (reel axis center line) is directed in a certain direction.

  Then, the side line W is unwound from the reel 8 and guided to the winding position of the core ring L through the unwinding guide 11. At that time, the feeding guide 11 rotates integrally with the rotating plate 3 without interfering with the reel 8 that rotates (revolves) while maintaining a posture in a certain direction. The rotation center line of the rotation circle K drawn by the feeding point A on the reel 8 passes through the substantial center line center at the winding position B of the core ring L, and the length of the side line W between the feeding point A and the winding point B is It is kept almost constant at all times.

  As shown in FIG. 2, the guide 11 is horizontally aligned between the core ring L and the reel 8 at the origin position where the core ring L and the reel 8 are horizontally aligned. At the position where the reel 8 is rotated (revolved) 180 degrees together with the rotary plate 3 from this origin position (indicated by reference numeral 8 in parentheses in FIG. 1), the guide 11 runs along the outer periphery of the reel 8 inside the core ring L. It becomes horizontal arrangement | positioning (it shows with the code | symbol 11 with a parenthesis in FIG. 1), and the feeding point A becomes a position shown with the code | symbol (A) with a parenthesis in FIG. Between these two positions, the guide 11 is inclined or arranged vertically. In the meantime, the length of the side line W between the feeding point A and the winding point B is unchanged.

FIG. 3 shows a schematic mechanism of a cable bead molding machine according to a second embodiment of the present invention.
In this embodiment, instead of the gear mechanism comprising the sun gear 4, the driven gear (reel rotation shaft gear) 5 and the planetary gear 6 in the cable bead forming machine of the first embodiment, a drive pulley 31 and a driven pulley (reel rotation) are provided. A belt mechanism comprising a shaft pulley 32 and a timing belt 33 is employed.

  That is, the drive pulley 31 is installed on the vertical frame of the apparatus main body so that the axis passes through the rotation center of the rotating plate 3. The rotary plate 3 supports a rotatable driven pulley (reel rotation shaft pulley) 32 with a position offset from the rotation center as a rotation center axis, and is rotated by the driven pulley (reel rotation shaft pulley) 32. Two idle pulleys 33 are rotatably supported at positions near the rotation center of the plate 3 and symmetrical with respect to a line connecting the center of the driven pulley 32 and the center of the drive pulley 31. In addition, a timing belt 34 is stretched between the drive pulley 31 and the driven pulley 32 so as to mesh with the drive pulley 31 and the driven pulley 32. The driving pulley 31, the driven pulley 32, and the idle pulley 33 are all toothed pulleys that mesh with the timing belt 34.

  The reel support bracket 7 is fixed at a position offset from the rotation center of the driven pulley 32 on the front surface of the driven pulley (reel rotation shaft pulley) 32, and is offset from the rotation center of the rotating plate 3 by the reel support bracket 7. The reel 8 is rotatably supported via a reel shaft (not shown) so that an axis substantially perpendicular to the rotation center axis CL2 of the rotating plate 3 is a rotation center line at the position, and a driving pulley 31 and a driven pulley ( (Reel rotation shaft pulley) 32, two idle pulleys 33, and a timing belt 34, the reel 8 has a rotation center line substantially parallel to the rotation center axis CL 1 of the core ring L and the rotation plate 3. It is rotated in the same direction as the rotating plate 3 while maintaining a posture oriented in a certain direction substantially perpendicular to the rotation center axis CL2. Other configurations and operations are the same as those shown in FIGS.

  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.

1 is a plan view showing a schematic mechanism of a cable bead forming machine according to a first embodiment of the present invention. It is a front view which shows the schematic mechanism of the cable bead molding machine of 1st Embodiment of this invention. It is a front view which shows the schematic mechanism of the cable bead molding machine of 2nd Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Guide roller for rotation support 2 Internal drive gear 3 Rotary plate 5 Driven gear 6 Planetary gear 7 Reel support bracket 8 Reel 9, 10 Guide support bracket 11 Feeding guide 12, 13 Slit 31 Drive pulley 32 Driven pulley 33 Idle pulley 34 Timing Belt A Feeding point B Winding point K Rotation circle drawn by feeding point L Core ring W Side line CL1 Center ring rotation center line CL2 Rotation plate rotation center line

Claims (1)

A cable in which a core ring formed by forming a core wire in a ring shape is rotated around the core wire of the core ring while rotating a reel around the core ring, and a side wire is drawn out from the reel and wound around the core wire of the core ring in a spiral shape A bead molding machine,
A rotating plate that rotates through an axis that is substantially perpendicular to the rotation center line of the core ring and passes through the center of the core ring at the winding position of the core ring;
The reel is provided rotatably at a position offset from the rotation center of the rotating plate with an axis substantially perpendicular to the rotation center axis of the rotating plate as a rotation center line;
A transmission mechanism is provided for rotating the reel in the same direction as the rotating plate while maintaining a posture in which the rotation center line is oriented in a certain direction substantially parallel to the rotation center axis of the core ring;
A feeding point on the reel that rotates while maintaining a posture in one direction as the rotating plate rotates through a guide support bracket fixed to the rotating plate at an offset position closer to the rotation center of the rotating plate than the reel. A cable bead forming machine, characterized in that a feeding guide is provided for guiding the side line while always maintaining a substantially constant length of the side line between the winding point on the core ring.

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