JPS59209843A - Apparatus for producing tire bead - Google Patents

Abstract

PURPOSE:To make favorable the adhesion between a filler and a flipper and to make easy the introduction and takeout of a tire bead, by feeding automatically the filler and the flipper from a prescribed position, and cutting them automatically in lengths by a cutter. CONSTITUTION:A filler forcing roll 260 and a filler guide unit 220 are fed by a bead feeding apparatus X, a filler F is lowered to be stuck to a tire bead W supported by a bead receiving guide 141, and at the same time the opposite sides thereof are clamped between first and second molding rolls of a molding roll apparatus 400. A flipper feeding apparatus 300 presses the flipper (f) against the inner circumferential surface of the tire bead W by its press roll. By driving a driving motor 142, while the filler F and the flipper (f) are being stuck to the tire bead W, the tire bead W is rotated. When the tip of the filler F is detected by detecting means, the motor 142 is stopped, the filler F is cut by a filler cutter 250, and then the flipper (f) is cut by a flipper cutter 330.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a tire bead manufacturing device, and more particularly to a tire bead manufacturing device that automatically attaches a filler and a flipper to the front and back surfaces of a tire bead formed into a circular shape. It is.

Conventionally, this type of device includes a support plate (not shown) installed vertically, as shown in FIGS. 1 and 2, for example.
The bead receiver supplies the tire bead W formed into a circular shape in another processing step to the guide roller 1 via a bead supply device (not shown), and the bead receiver supplies the tire bead W to the guide roller 1 and the filler guide unit. At the same time, on the surface of this bead W, the bead receiver holds a filler pressure bonding roll 2 and a filler advance guide 3, which are disposed above the guide roller 1 and can be moved up and down. Filler F is supplied through the tire bead W, and a bead receiver is provided on the inner surface of the tire bead W by a guide roller 1.
The filler F and flipper f are supplied at the same time through a forming roll 5 arranged on the rotationally moving side of the tire bead W. I was letting it happen.

However, in such a conventional device, since the bead receiver of the support plate carries the tire heat W into and out of the guide roller 1 linearly from the axial direction thereof, it is difficult to form the bead receiver of the support plate to attach the flipper f. The roll 5 itself was a hindrance, and therefore automatic supply and removal of the tire heat W was difficult.

Furthermore, even if a device for putting in and taking out tire beads W that avoids the forming roll 5 is made, the feeding operation of the device itself will become complicated and the number of man-hours will increase, which will increase the price of the device, and the tire bead It took a lot of time and effort to put in and take out the W, and in the end the actual production process had to be done manually.

Further, as shown in FIG. 2, the tip F1 of the filler F and the tip of the flipper fl are simultaneously attached to the bead W from the same position via the detection means 7, so that the tip F1 of the filler F and the tip of the flipper fl are simultaneously attached to the bead W from the same position at the time of splicing. There is a problem in that the tip end is crushed or the filler cutter 6 cuts the flipper f to the tip end, resulting in errors such as shortcuts.

Furthermore, a conventional filler cutter 6 and a flipper cutter (
In the cutter (not shown), the filler F and the flipper f were both cut using iron, so they needed to be structurally strong, so the cutter itself had the disadvantage of occupying a large space.

This invention was devised by focusing on the conventional problems, and its purpose is to automatically supply a filler and a flipper from a fixed position to the front and back surfaces of a tire bead, and to A cutting device automatically cuts the filler and flipper to a specified length to improve the adhesion of the filler and flipper to the tire bead, and facilitates the loading and unloading of the tire bead. To provide a tire heat manufacturing device which can improve performance and quality at the same time and reduce the space occupied by the entire device.

In order to achieve the above-mentioned object, the present invention provides a support plate that is inclined toward the bead supply device side on the support plate, and a bead receiver has a guide roller and a bead guide rotatably disposed on the support plate, and the bead receiver guides the bead receiver. A filler guide unit including a filler crimping roller, a filler cutter, and a filler guide is disposed above the roll so as to be movable up and down, while the bead receiver is below the guide roller and allows the bead to enter behind the filler crimping roll. A flipper supplying device for sticking a flipper on the inner surface of the tire bead is disposed on the side, and the bead receiver is placed on the bead movement side of the guide roller, above the bead rotation locus, and in the bead supplying direction. The gist is that the forming roll device is movably disposed at a position where it does not interfere with the roller.

The present invention will be described in detail below based on the accompanying drawings.

3 and 4 show a front view and a side view of a tire bead manufacturing apparatus embodying the present invention. 100 and this support plate 10
a filler guide unit 200 disposed on 0;
Free Tsunomer supply device 300 and forming roll device 40
0 and a bead kicking device 500.

The support plate 100 is attached to one side edge of a base plate 120 installed at an angle to the support column 110 at a predetermined inclination angle α (0 degrees to 30 degrees in this embodiment),
Furthermore, a cylinder support plate 30 is attached to the lower part of the support plate 100. A plurality of upper and lower bead guide rolls 101, 131° 1 supporting the side surface of the tire bead W are mounted on the upper surface of the support plate 00 and the cylinder support plate 130, which are installed at a predetermined inclination angle α in this way.
32 are arranged radially at predetermined intervals.

Further, a guide roller 141 is disposed approximately at the center of the support plate 100, and the bead receiver is provided with a groove 140 into which the tire bead W fits.
41 is a drive motor 142 - reduction gear 143 - transmission pulley 144 -> belt 145 -> transmission pulley 144 - gear box 146 - niversal joint 147 installed on the base plate 120 mounted on the back side of the support plate OO. It is designed to be rotationally driven by a drive shaft 148 via the drive shaft 148.

The bead receiver is provided with a tension roll 136 that can be raised and lowered via a cylinder 135 on the cylinder support plate 130 directly below the guide roller 141, and the expansion and contraction of the cylinder 135 is controlled by a position adjustment lever 137 attached to the lower part of the tension roll 136. It is designed to be surrounded by 8 circumferences.

The bead receiver configured as described above is the guide roller 141.
As shown in FIG. 4, the tire bead W, which has been clamped vertically by the fingers of the bead supply device X, is transferred. That is, finger x 1 is 31 in Fig. 4.
When the lower end of the tire bead W comes into contact with the guide roller 13L132 at the T1 position, and when the finger Xi reaches the bead release position S2, the tire bead W is pulled upward and the lower end At this point, the lower bead receiver rises to the T2 position of the guide roller 13L132, and as the finger X1 is released, the tire bead W slides on the inclined support plate 100, and the bead receiver fits into the groove 140 of the guide roller 141 and is supported. It is something that will be done.

Next, the filler guide unit 200 is shown in FIGS.
As shown in the figure, a unit mounting unit, which is attached above the support plate 100 via a lifting cylinder 210 so as to be able to rise and fall freely, is disposed on a frame 220.

As shown in FIGS. 5 and 6, the filler guide unit 200 is attached to a support member 240 of the filler guide 230 that is inclined to the frame 220, and
The filler cutter device 250 disposed on the upper tip of the support member 240 and the bead receiver are connected to the guide roller 141.
A filler crimping roll 260 disposed opposite to the upper part of the
It is composed of.

The support member 240 of the filler guide 230 has a box-shaped guide portion 242 formed at the tip of a base plate 241, as shown in FIGS. It is tapered downward. Further, a plate 24 on which a filler cutter device 250 is installed is provided on the upper surface of the guide portion 242.
3 is provided, and a notch 244 is formed at the tip end edge of this plate 243 to allow a filler cutter 251, which will be described later, to enter therein. A guide groove 245 is formed along the longitudinal direction of the base plate 241 approximately at the center of the base plate 241.
As shown in FIG. 13, a guide member 231 attached to the bottom wall of the filler guide 230 is slidably engaged.

The filler guide 230 has a guide groove 232 for the filler F, which has a tapered tip and a substantially U-shaped cross section. A plate 233 having a locking groove 232 is fixed to the upper rear end of the filler guide 230, and one end of a connecting plate 234 is connected to the locking groove 232 of this plate 233.
The other end is connected via a connecting member 237 and a slide bush 238 to the tip of a rod 236 of a Lyra advance cylinder 235 mounted on the mounting plate 105.

A slide bush 238 integrally attached to the filler guide 230 is slidably inserted along a guide rod 239 installed between the upper end of the base plate 241 and the filler advance cylinder 235. . At the bottom of the slide bush 238, two clamp shafts 247, which are always biased to rotate inward through a spring 246, and a clamp claw 248 attached to the tip of the clamp shaft 247 are disposed. The supplied filler F is clamped on both sides and guided into the guide groove 232 of the filler guide 230.

Further, 249a and 249b are guide rollers for the filler F provided at the rear edge of the base plate 241.

Next, a plate 243 is attached to the top of the base plate 241.
The filler cutter device 250 installed through the unit has a cutter cylinder 253 attached to the frame 220 via a bracket 252, and a filler cutter 251 attached to the tip of the rod 254 of this cutter cylinder 253. The filler cutter 251 is supported so as to be movable up and down via a slide bush 265 which is slidably fitted into a guide rod 255 attached to the plate 243 at an angle. The upper surface of this filler cutter 251 has an angle of about 160 degrees to 30 degrees.
A heater 257 that heats to 0 degrees is provided.

Further, the filler pressure bonding roll 260, which is disposed facing the upper part of the guide roller 141, is connected to a drive motor 142-reducer 143 installed on the base plate 120, similar to the bead receiving guide roller 141 described above.
-Transmission pulley 144 + belt 145 → transmission pulley 144
→Gearbox 146-Universal joint 262
It is designed to be rotationally driven by a drive shaft 263 via.

The relationship between the guide roller 141 and the filler pressure bonding roll 260 is such that the bead receiver is rotatably arranged in parallel via bearing members 149 and 264 as shown in FIGS. 16 and 17, and the filler pressure bonding roll 260 has a cross section. A guide groove 265 into which a triangular filler F can be inserted is formed, and a bead receiver facing this guide groove 265 is a guide roller 14.
1 is formed with a recess 150 that supports the bottom surface of the filler F.

Next, a flipper supply device 300 is disposed on the support plate 100 below the filler guide unit 200.
As shown in FIGS. 18 to 22, the support plate 10
A flipper is placed on the base plate 310 placed on the
A butting mechanism 320 and a flipper-cutter mechanism 330 are installed.

A roll shaft 34 , into which a guide roll 340 is rotatably fitted, is rotatably connected to the tip side of the base plate 310 , and one end of this roll shaft 341 is implanted in the support plate 100 . This roll shaft 341 is the center of rotation of the flipper supply device 300.

Also, on the bottom wall of the base plate 310, there are
An angle adjustment flange 351 that engages with an arc-shaped guide groove 350 formed in the support plate 100 as shown in FIG.
is attached, and this angle adjustment flange 351 is attached to the bolt 3.
52 to the guide groove 350, and the base plate 310 to the free 2-per feeder 30.
It is configured to be able to perform zero angle adjustment.

The flipper-butt mechanism 320 installed on the base plate 31O is connected to the guide roll 34 via a bearing member 321 installed on the rear end side of the base plate 310.
A guide roll 322 for folding the flipper f parallel to 0
is installed horizontally, and on the base plate 310 above the guide roll 322, as shown in FIGS. A presser roll 325 for abutting the tip of the tire bead W against the inner surface of the tire bead W is provided.

As shown in FIG. 22, the guide plate 323 has two members each having an angular cross-section and are arranged to face each other in correspondence with the width H of the flipper f. As shown in FIG. 21, a substantially arc-shaped clamp claw 326 is rotatably supported on a support plate 327 via a pin 328, and this clamp claw 326 is rotated by a clamp cylinder 329 connected to the rear end. It is now possible to

Further, a presser roll 325 disposed substantially in the center between the guide plates 323 is attached to the base plate 310 so as to be rotatable about a pivot shaft 374 via a cylinder 375 .

Further, the flipper-cutter mechanism 330 is disposed in an inclined state on the base plate 310 above the flipper-clamp mechanism 324 via a support plate 381,
This flipper-cutter mechanism 330 includes a cutter cylinder 38 equipped with a flipper-cutter 379 at the tip of a rod 378.
0 is set. The flipper cutter 379
As shown in Fig. 9, it is equipped with a triangular grooved blade and is always kept at a predetermined temperature (200 to 350 degrees) via a heater 382.
It is heated to. By expanding and contracting the cutter cylinder 380, the flipper f clamped by the flipper clamp mechanism 324 is diagonally cut by the flipper cutter 379 as described above.

With the above configuration, as shown in FIG. The flipper f is the guide roll 10
5. It is folded back approximately 90 degrees via a folding guide roll 322 provided in a direction perpendicular to 106, and the tip of the flipper-f is guided by a kite plate 323 and clamped by the clamp claw 326 of the flipper-clamp mechanism 324. be clamped.

In this state, the cutter cylinder 380 of the flipper-cutter mechanism 330 expands and contracts to cut the tip of the flipper f obliquely. The tip of the free 7-par f thus cut is pressed to a predetermined position on the inner surface of the tire bead W via the presser roll 325 by the expansion and contraction operation of the cylinder 375. The crimped flipper f follows the rotation of the tire bead W, and the build receiver moves toward the guide roller 141, and the guide roller 340 provided on the tip side of the base plate 310 moves the flipper f to the flipper 4.
It is crimped onto the back surface of the bead W.

Next, the forming roll device 400, in which the bead receiver is disposed on the bead moving side of the guide roller 141, moves the tire bead W.
The first forming roll mechanism 410 arranged on the rotation trajectory G of
and a second forming roll mechanism 420 and a third forming roll mechanism 430 in sliding contact with the image forming roll mechanisms 410 and 420.
It is composed of.

The first forming roll mechanism 410 is shown in FIGS. 23 and 24.
As shown in the figure, the first cylinder 41 is attached to the support plate 100.
The proximal end of 1 is swingably supported via a pin 412. At the tip of the rod 413 of this first cylinder 411, a bracket 414 is installed on the support plate 100.
An arm member 415 is connected to the arm member 415, which is pivotably supported through a bearing 416, and a first forming roll 417, which presses the side surface of the flipper-f, is rotatably supported at the tip of this arm member via a bearing 416. ing.

Further, a second forming roll mechanism 420 disposed adjacent to the first forming roll 410 has a pin 42 at the tip of a rod 422 of a second cylinder 421 installed on the support plate 100.
A roll support member 424 is rotatably supported via a roller 3, and a second forming roll 426 having a conical cross section is rotatably attached to the tip of the roll support member 424 via a bearing 425. The first forming roll 417 is disposed parallel to the disk-shaped forming roll 431 of the third forming roll mechanism 430, and is configured to lift up the longitudinal side edge of the transferred flipper-f. The second forming roll 426 is configured to raise the side edge of the flipper f raised by the first forming roll 417 toward the center via the third forming roll 431 and press it. It is.

Next, in the bead receiver, a bead kicking device 500 is installed below the guide roller 141, and this bead kicking device 500 is installed on a support plate 100 erected as shown in FIGS. 25 and 26. The member 510 has an abbreviated character,
The lower end of the trident-shaped kick-out pawl 520 is rotatably supported via a pin 530. A locking portion 521 of the tire bead W is formed on the upper part of the kicking pawl 520, and the tip of a rod 541 of a kicking cylinder 540 is connected to the lower end of the kicking pawl 520 via a pin 542. ing.

Next, the operation of the present invention constructed as described above will be explained.

First, as shown in FIG. 27, the bead receiver is attached to the guide roller 1.
At 41, the tire beads that have been clamped vertically by the fingers x1 of the bead supply device X are transferred.

That is, when the finger X1 comes to the position 31 in FIG.
31 and 132 TI positions, and further finger x
1 reaches the bead release position S2, the tire bead W
is pulled upward, and the lower end of the lower bead receiver is raised to the T2 position of the guide roller 13L132, and as shown in FIG. It is located on the created plane Q.

Here, as the finger x1 of the bead supply device X is opened, the tire bead W slides on the inclined support plate 100, and the bead receiver fits into the a140 of the guide roller 141 and is supported.

When the bead W supply operation is completed in this way, the third
As shown in FIG. 4, the filler guide unit 20
0 is operated to lower the frame 220 for unit installation, and the unit installation is performed by the filler pressure bonding roll 260 mounted on the frame 220.
Filler guide Uni-nod 230. The filler cutter device 250 is used to lower and position the filler F to adhere it to the tire bead W. At the same time, the first forming roll 417 and the second forming roll 426 of the forming roll device 400 swing in a direction perpendicular to the rotational direction of the tire bead W via the respective first cylinders 41L and second cylinders 421. , the tire bead W is held between its both sides.

On the other hand, the bead tension roll 136
35, and the bead receiver is lowered by the guide roller 141.
This applies a predetermined tension to the tire bead W supported by the tire bead W.

The tension is adjusted by vertically adjusting the position adjustment lever 137 and adjusting the stroke of the cylinder 135. Further, in the flipper supply device 300, the pressing is performed by the flipper butting mechanism 320 by the cylinder 375.
swings upward, and the presser roll 325 shown in FIGS. 18 and 19 presses the tip fl of the flipper f against the inner circumferential surface of the tire bead W, thereby adhering it to the inner circumferential surface rubber layer of the tire bead W. Let's go.

With the above steps, preparations for bonding the filler F and the flipper f are completed, and with the drive of the drive motor 142 shown in FIG. In) 147.262→The rotational driving force is transferred to the filler pressure bonding roll 260.262 via the drive shaft 148.263. The bead receiver is a guide roller 141. It is transmitted to the third forming roll mechanism 430 and rotates the tire bead W while bonding the filler F and the flipper f to the tire bead W.

The pressure is applied to cylinder 3 at the same time as the rotation of the tire bead W starts.
75 lowers the flipper-butting mechanism 320, and the 18th
As shown in FIG. 19 and FIG. 19, the flipper f is straightened through the guide roll 340 and the folding guide roll 322, so that no extra tension is applied to the flipper f, and moreover, within the operating plane of the flipper cutter 379. The flipper f is positioned at , and the flipper cutter 379 is prepared.

The filler F and flipper f are such that, as shown in FIG. It is detected by a detection means 600 such as a phototube for detecting the tip of the filler, which is disposed near the rotation trajectory G of the filler.

When the tip F1 of the filler F is detected by the detection means 600, at the same time, the drive motor 142 stops rotating and the rotation of the tire bead W stops. Here, the filler canter 251 is moved downward by the force/vine cylinder 253,
Cut filler F at position kl. At this point, the tip F1 of the filler F has stopped at a position where it just abuts the end F2 of the filler F after cutting.

On the other hand, the flipper f is not advanced, unlike the case where the filler F is advanced and the tip F1 and the end F2 of the filler F are just butted together, and moreover, the tip f1 and the end f2a of the flipper f are wrapped. Therefore, the tire bead W has to be rotated that much more. Therefore, after the filler cutter 251 returns to its original state, the drive motor 142 makes a small rotation again and rotates the tire bead W to the cutting position 2 of the flipper-f. With this small rotation, the cut end F2 of the filler F and the filler F in a floating state between the filler pressure bonding roll 260 are pressure-bonded to the tire bead W by the filler pressure bonding roll 260, and the tip Fl and the end F2 of the filler F are It is pressure bonded.

After the drive motor 142 stops rotating in this manner, the flipper cutter 251 is operated by the cutter cylinder 380 to cut the flipper f, and at the same time, the lifting cylinder 210 raises the filler guide unit 200 to remove the filler. Flipper-f by pressure roll 260
This is to prevent the crushing of the material.

After cutting the flipper f, the end f2 of the flipper f is used to form the unformed flipper f between the forming roll device 400 and the flipper cutter 379.
drive morph 14 until it passes through forming roll mechanism 400
2 rotates to rotate the tire bead W.

After the tire bead Wl is completed in this way, the drive motor 142 is stopped, and the tension roll 136 is raised by the cylinder 135 to release the tension on the tire bead W, and the first forming roll 417. The second forming roll 426 is connected to the first cylinder 411. 2nd cylinder 4
21 and rises.

Next, between the supply of the tire bead W and the completion of the final rotation of the bead, the completed tire bead is transferred to the bead loading finger (see Fig. 26) of the handling device 700 waiting in front of the tire bead manufacturing device according to the present invention. In order to transfer the old tire bead, the kicking claw 520 rotates around the pin 530 by the kicking cylinder 540, kicks out the tire bead W from the tire bead manufacturing device, and transfers it to the handling device 700. It is something to do.

Furthermore, when the kick-out pawl 520 returns and the handling device 7°O carries away the tire bead W, the receiving of the tire bead W for bonding the next filler F and flipper-f is completed, and the above-mentioned operation is repeated. I will do it.

By incorporating the bead kicking device 500 into the tire bead manufacturing device itself, the free shoulder supply device 300
Also, in other processing machines, the tire bead W can be taken out at the same time as processing is completed, and the feeding device clamps and supplies the next tire bead W (it is possible to wait as described above). This has the advantage of shortening the cycle time.

As described above, in this invention, a support plate that is inclined toward the bead supply device is provided on the support plate, and a bead receiver has a guide roller and a bead guide rotatably disposed on the support plate, and the bead receiver has a guide roller and a bead guide rotatably disposed on the support plate. A filler guide unit including a filler crimping roll, a filler cutter, and a filler guide is disposed above so as to be movable up and down, while the bead receiver is below the guide roller and on the tire bead entry side behind the filler crimping roll. A flipper supply device is provided to attach a flipper to the inner surface of the bead, and the bead receiver is placed on the bead movement side of the guide roller, above the bead rotation locus and with respect to the bead supply direction. The forming roll device is movably placed in a position where it will not interfere with the tire bead, making it easy to carry in and out the tire bead.
The feeding device can be simplified, and since the tip of the filler and the tip of the flipper are attached at different positions, it is possible to reliably detect the position of the filler tip and butt (cut) the filler. Since the filler tip and end will not become open or overlap, creating a bump-like shape, the quality of the tire will not be affected.
This has the effect of improving the workability of attaching fillers and flippers, as well as improving quality. Furthermore, even when the filler is pressed to the filler abutting position with a filler press roll, the tip of the molded flipper is not crushed, so there is an effect that reliable filler abutment can be performed. Furthermore, the filler and flipper can be cut well, thereby significantly extending the life of the cutter and reducing the space occupied by the entire device.

Furthermore, since each structure itself is relatively simple, it can be manufactured at low cost and maintenance is easy.

[Brief explanation of the drawing]

1 and 2 are explanatory diagrams of the operation when pasting a filler and a flipper to a conventional tire bead, and FIGS. 3 and 4 are a front view and a side view of a tire bead manufacturing apparatus according to the present invention. , FIG. 5 and FIG. 6 are a side view and a partially longitudinal front view of the filler guide unit, and FIG. 7 is a side view of the filler guide unit, and FIG.
■A plan view along the line, Figure 8 is a plan view of the guide part of the filler guide, Figure 9 is a front view of Figure 8, the first figure is a side view of Figure 9, Figures 11 and 12 are A front view and a side view of the filler guide, FIG. 13 is a sectional view taken along line XI [r-Xfll in FIG. 7, and FIG. 14 is a cross-sectional view taken along line
15 is a cross-sectional view taken along the line xv-xv in FIG. 6, and FIGS. 16 and 17 are side views showing the relationship between the filler pressure roll and the bead receiver and the guide roller. 18 and 19 are side and front views of the flipper supply device, FIG. 20 is a plan view taken along the line xx-xX in FIG. 19, and FIG. 21 is a side view and front view of the flipper supply device, and FIG. r-XX
A side view along line I, FIG. 22 shows x x , n in FIG. 19.
-xxn line; FIG. 23 is a front view of the forming roll device; FIG. 24 is a side view of the forming roll device;
FIG. 5 is a front view of the bead kicking device, FIG. 26 is a side view of the bead kicking device, FIGS. 27 and 28 are explanatory diagrams when carrying tire beads into and out of the tire bead manufacturing device, and FIG. 29 FIG. 2 is an explanatory diagram of the operation when bonding a filler and a flipper to a tire bead. 100... Support plates 101, 131, 132... Bead guide roll 110... Support column 141... Bead receiver is guide roller 200...
Filler guide unit 230... Filler guide 251... Filler cutter 260... Filler pressure bonding roll 300... Flipper supply device 400... Forming roll device W... Tire bead F... Filler f... Flipper G... Rotation Kiseki Agent Patent Attorney Shin Ogawa Patent Attorney Teru Noguchi Patent Attorney Kazuhiko Saishita

Claims (1)

[Claims] A support plate that is inclined toward the bead supply device is provided on the support plate, and a bead receiver has a guide roller and a bead guide rotatably disposed on the support plate. A filler guide unit including a cutter and a filler guide is disposed so as to be movable up and down, and the bead receiver has a flipper on the inner surface of the tire bead below the guide roller and on the bead entry side behind the filler pressure roll. A flipper supply device for adhesion is provided, and the bead receiver is placed on the bead moving side of the guide roller above the rotating locus of the bead,
A tire bead manufacturing apparatus characterized in that a forming roll device is movably disposed at a position that does not interfere with the bead supply direction.