JPH02145328A - Method and apparatus for adherence of bead apex - Google Patents

Abstract

PURPOSE:To effectively bring the starting end face of an apex into coincidence with the rear end face and to eliminate the excess or insufficiency of rubber at a joint by holding the rear end of the apex by a chuck, rotating the chuck along a circular arc protruding downward, adhering it to the outer surface of the remaining bead apex, and adhering the starting end face to the rear end face of the apex. CONSTITUTION:A bead ring 12 is supported at its vertical face or nearly vertical face, the bead ring adhering face of the end of an apex 13 supplied from one end to the outer face position of the top of the ring is press-adhered, and the apex is so supported as to be disposed substantially along the tangential line of the outer surface of the top of the ring. Then, the ring is rotated circumferentially, and the rear part continued to the end of the apex is adhered to the ring upon rotation of it. The rotation of the ring is stopped at a predetermined rotary angle position on the course of adhering, its side of the rear part to be cut of the apex is held, cut at a predetermined length, and then again rotated. The rear end is rotated in synchronization therewith, adhered, and the front end face is brought into contact with the rear end face to be adhered.

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention is applicable to manufacturing pneumatic tires for automobiles.
Regarding an apex pasting method and its pasting device, in which an extruded rubber layer called apex, which is relatively elongated and approximately triangular in cross section, is pasted in an annular shape on the outer peripheral surface of a bead ring prior to assembling the bead portion of a tire. Furthermore, the present invention relates to a method and apparatus capable of applying a band-shaped filler at the same time as applying an apex.

<Prior art> The main prior art of this type is the Japanese Patent Publication No. 51-29551
There are those described in Japanese Patent Publication No. 61-6782. For the former, the apex is fed from one end onto a rotating bead ring that is passed through a pair of guide rolls, and is continuously crimped onto the outer circumferential surface of the bead ring with a pair of presser rolls, pasting it in an annular shape. The bead apex is sandwiched between a disk-shaped roll and a cone roll in the middle, and the bead apex is pushed from the inner edge toward the outer edge, and when the tip of the apex is rotated to a predetermined angle, it is detected and the rear of the apex is After pasting the apex around the entire circumference of the bead ring, the V-shaped ends of the apex are clamped using a splice mechanism, brought close to each other, and the two cut ends are crimped and joined to each other. is listed.

In the latter case, a bead ring is held on the outer periphery of a disk that can rotate once, and an apex cut to a fixed size in advance is attached to the outer periphery of the bead ring in an annular shape by rotating the disk. Clamping both sides of both ends with two pairs of clamping tools (pressure elements) while facing each other and creating a 7-shaped gap,
It is described that a third mechanism applies a thrust force to the clamp, thereby drawing the two opposing V-shaped ends of the apex toward each other and abutting them.

<Problems to be Solved by the Invention> When a band-shaped apex with a relatively elongated triangular cross section is attached to a bead ring in an annular shape, the inner circumference length and outer edge portion (the tip of the tip) of the apex that contacts the outer circumferential surface of the bead ring Department)
Since there is a difference in the outer circumferential length including the length, a V-shaped gap occurs at the joining position of the starting end and the ending end. According to the conventional technique, after the apex is pasted on the outer circumferential surface of the bead ring, both ends of the apex are grabbed with clamping tools and pulled together to butt join. When pasting on a surface, the apex shrinks, especially at its outer edge, and the V-shaped gap at both ends becomes even larger.
The amount of deformation of the apex end to eliminate the character gap is locally large and the shape of the outer edge of the apex tends to become uneven near the joint, and the clamping marks of the clamping tool remain at the joint. There are other problems. The size of the V-shaped gap is not always constant because the degree of contraction varies depending on the viscosity of the apex rubber, and may be large or small. Avoid joint misjoints when clamping and joining using the above-mentioned conventional scissor-type clamping tool, which can only move within a certain range and cannot freely pull and pull in response to the size of the V-shaped gap. Therefore, if the operating stroke of the clamping tool is set large to match a large gap, the joint in a small gap will result in an overjoint (excessive joint), and if the operating stroke is set small to match a small V-shaped gap, the joint will become large. There is a problem in that the gap is insufficiently bonded and a gap remains at the joint, making it impossible to obtain a good joint in any case.

Means for Solving the Problem> The apex pasting method of the present invention supports a bead ring on its inner peripheral surface so as to be rotatable in the circumferential direction at a fixed position along a vertical or near-vertical surface, and The bead ring attachment surface of the tip of the apex supplied from one end along a substantially tangential direction is pressed onto the top outer peripheral surface position, and then the bead ring is rotated in the circumferential direction and the tip of the apex is attached according to the rotation. Attach the rear part of the apex to the bead ring, stop the rotation of the bead ring at a predetermined rotation angle position in the middle of pasting, pinch the front side of the rear part of the apex where it is planned to cut, and cut it to a fixed size. Restart the rotation of the bead ring, and in synchronization with the rotation, continue pasting by rotating the rear end of the apex, which was clamped during cutting to size, along a convex arc downward toward the bead ring while still clamping it. A joint is formed by bringing the rear end surface into contact with the front end surface of the apex.

The apex pasting device of the present invention supports a bead ring rotatably in the circumferential direction at a fixed position along a vertical or near-vertical plane by a bead ring support mechanism having a rotation drive part, and the top outer periphery of the bead ring. The apex is supplied from one end by the apex supply mechanism in a substantially tangential direction toward the surface position, and the tip is delivered to the crimping mechanism, and the crimping mechanism crimps the apex to the outer peripheral surface of the top of the bead ring, and the bead ring support mechanism In the apex pasting device, the apex is pasted on the bead ring by rotating the bead ring, the apex is cut to a certain size midway, and the remaining pasting is completed. A section is provided to reciprocate between a retracted position away from near the top of the bead ring and an advanced position that delivers the tip of the empex to the crimping mechanism, and a position on the front side of the tip of the empex supply mechanism in the retracted position. A chuck mechanism is provided that can clamp the apex moving downward along a convex arc between the tip of the apex on the outer peripheral surface near the top of the bead ring and a joint position, and the apex is moved to the retracted position. The present invention is characterized in that the apex cutting position of the sizing cutting mechanism is provided between the tip of an apex supply mechanism and the chuck mechanism located in front of the tip.

According to the method of the present invention, the apex can be attached to the bead ring from the starting end, the rear part in front of the planned cutting position is held in the middle and cut to a fixed length, and then the bead ring is rotated and cut. At the same time, the rear end of the apex that was clamped during cutting to size is rotated downward toward the bead ring along a convex arc and pasted. If the rotation angle θ2 from the point where the tip and rear end surfaces of the beat wire contact each other to the top of the beat wire is equal, the tip and rear end surfaces will coincide unless the apex contracts. θ, θ2
If θ is made larger than θ, the front end surface and the rear end surface will come into contact with each other on the outer periphery side, creating a gap on the inner periphery side, and conversely, if θ is made smaller than θ, the front end surface and the rear end surface will come into contact with each other on the inner periphery side and create a gap on the outer periphery side. Therefore, by using this relationship, it is possible to determine in advance θ and θ so that the front end and rear end of the apex come into contact with each other, and thereby the apex is shimmed with just enough rubber. If you rotate the apex as described above while holding the rear end of the apex, the apex will not only be pasted by the rotation of the bead ring, but also the pasting will progress due to the rotation, and during that time the rear end surface angle will change. It changes and comes to match the front end surface.

In addition, according to this method, it is also possible to affix the filler to the bead ring with a slight delay to affix the apex to the bead ring, and then to wind the bead ring at approximately the same time.

Furthermore, in the apparatus for carrying out this method, a drum-shaped bead ring support mechanism can be used in addition to a roller-type one. However, when applying filler and winding up at the same time, it is necessary to use a roller-type bead ring support mechanism in order to provide a filler supply mechanism.

<Embodiment> An embodiment of the present invention will be explained with reference to FIGS. 1 to 14. FIG. gas supply mechanism 2, crimping mechanism 3, apex start end detector, chuck mechanism 5, apex cutting mechanism 6, filler supply guide mechanism 7, filler winding mechanism 8, press roll mechanism 9. It is composed of a guide roller mechanism IO and the like.

The bead ring support mechanism l is a first support mechanism provided in the machine frame 11.
, second, third, fourth, and fifth support rollers 21° 22, 23
, z4.25, etc. As shown in FIGS. 1 and 2, each of the support rollers 21 to 25 rotatably supports the bead ring 12 in alignment with a surface 26 that is slightly inclined relative to the vertical surface. The first support roller 21 is provided at an upper position, and the first and second support rollers 21 and 22 are rotated counterclockwise in FIG. 9 so that it is rotationally driven. First to fifth support rollers 21
- 25 each have a groove on the outer periphery, and the inner circumferential surface side of the bead ring 12 engages with the groove. The fifth support roller 25 is rotatably supported by a shaft, and the second. Fifth
The support rollers 22 and 25 are supported by arms whose respective support shafts are driven by cylinders to rotate, and the bead ring 1
2 (the position shown in FIG. 1) and a retracted position inwardly displaced from the operating position. The third and fourth support rollers 23 and 24 have a side surface forming portion on one side of the groove having a large diameter, are rotatably supported by a shaft, and the shaft is fixed to a movable plate 23a driven by a cylinder. It moves between an operating position where it contacts the inner circumferential surface of the bead ring and a retracted position where it is displaced upward from the operating position. Second to fifth support rollers 22 to 25
The operating position of the bead ring can be adapted to changes in the diameter of the bead ring by changing the stopper position for each movement by the cylinder.

As shown in FIGS. 3 and 5, the apex supply mechanism 2 includes a guide rail 30 provided on the tilting frame 29. It consists of cylinders 31, 32, 33, apex guide 34, etc. The tilting frame 29 is rotatable about the shaft 35 when the machine frame 11 is rotated.
The bead ring support mechanism l side is moved up and down by the cylinder 31. guide rail 30
is fixed to the tilting frame 29 and extends in the left-right direction in FIG. The apex guide 34 is formed of a member 34a having a groove to guide the apex 13 from right to left in the figure in an upright state, and is driven forward and backward along the guide rail 30 by an air cylinder 32.32a. It has become. Cylinder 32a is provided separately and cylinder 3
The apex guide 34, which is designed to be driven a short distance (10 mm) in the same direction as the bead ring 12, circumscribes the top, that is, the top of the bead ring 12, which is supported by the bead ring support mechanism 1. A horizontal state in which the bottom of the groove follows a horizontal straight line, a state in which the front side is lifted around the shaft 36 by a cylinder 33 separately provided at the tip of the guide rail 30, and the forward and backward positions by the cylinder 32.32a. The tilting frame 29 can be moved by the cylinder 31.
It can take up and down positions that rotate with the movement. The apex that is fed into the groove of the apex guide 34 from the right side in FIG. 3 is one that is not shown in the figure, but is sent out from the apex sending mechanism, and the guide rollers 37 forming a pair on both sides.
A guide roller 3 with flanges on both sides, facing upward from the bottom between the
At 8, the cross section becomes an upright shape with the top of the triangle pointing upwards,
It passes between the pair of guide rollers 39 on both sides and the lower support roller 39a, passes through the detent portion 40, and enters the groove of the member 34a. The detent part 40 is a reciprocating part in which leaf springs 4Qa are arranged on both sides to guide the apex 13, the interval between the leading ends of the apex on the traveling direction side is narrowed, and the rear end supports the member 34a. Reference numeral 40b in Figure 0 fixed to is an apex detent pressing spring. Due to these, when the apex guide 34 moves forward, the apex 13 which is in the state of protruding toward the tip side of the apex guide 34 moves forward together and comes out as if being pulled out from the apex delivery mechanism. The tip side of the thread 13 is held and the apex guide 3
4 is allowed to move backward, the apex guide 34 is allowed to move backward without pulling the apex 13 backward. Reference numeral 41 in FIG. 3 is a stopper that restricts the forward position of the apex guide 34 by the cylinder 32.

The crimping mechanism 3 is provided above the bead ring support mechanism as shown in FIGS.
4, the pressure roll support parts 45 on both sides are arranged to approach or separate from each other.The roll support parts 45 on both sides are provided with a central roller 46, an entry roller 47, and an exit roller 48, respectively. They form a pair. central roller 4
6 is from the top of the bead ring 12 in FIG.
Located on the right side, the outer diameter is the same over the entire length, and the length is sufficiently higher than the height of the upright apex 13. One is rotatably supported and the other is rotationally driven by the air motor 46a. The entrance roller 47 is the center roller 46
Both have a smaller diameter and are supported so that they can rotate freely and adjust their heights in the axial direction. Each of the exit rollers 48 has three radial ball bearings that are supported by the shaft, and the angle of the shaft can be adjusted around one port 49 of the two bolts that attach the shaft to the roller support section 45. and is adjusted to match the slope of the side surface of the apex 13. This crimping mechanism 3 has a cylinder 4
4, the rollers can take a nipping action position where they are close to each other, a retracted position where they are separated from each other, and furthermore, by raising and lowering the tilting frame 29, they can take a lowered pressing action position and a raised position as shown in the drawing.

Although the apex starting point detector is not shown in the figure, when the tip of the apex 13 is attached to the outer periphery of the bead ring 12 and the rear apex 13 is attached while the bead ring 12 rotates, the apex starts. It is a photoelectric type that is installed so that it can detect when the tip reaches a position where it has rotated about 2 or 3 times. This detection signal is used to cut the apex 13 to a fixed length in the middle of pasting. It is used to stop the rotation of the bead ring 12 so that the length becomes equal to the lap joint length plus the lap joint length. To ensure this fixed size.

A pulse transmitter and a pulse counter are installed corresponding to the rotation angle of the bead ring 12, and after detecting the start end, the bead ring is rotated at a low speed, counts pulses, and stops when it has rotated a predetermined number of pulses to reach a desired stopping position. It is as it should be.

The chuck mechanism 5 is provided diagonally above and to the right of the bead ring support mechanism l in FIGS. 1 and 3, and is pivotably supported by a tilting frame 29 as shown in FIGS. Arm 51. Chuck part 5 provided on rotating arm 51
The zero-rotation arm 51 consisting of 2 has a base rotatably supported by a shaft 53, extends slightly downward from the base and diagonally downward to the right in FIG. 8, and is chucked by a member 51a provided at the tip. The three parts 52 are supported and rotated clockwise from the illustrated position by a cylinder 54.

The chuck portion 52 includes two identical gears 55a and 55b that are pivotally supported at the tip of the rotating arm 51 and mesh with each other, and opening/closing arms 56a and 56b extending from the respective gears.
Members 57a and 57b are provided at the tips of the opening/closing arms and contact the side surfaces of the apex 13, and another member 59 moves forward and backward in opposition to a portion of the member 57b by means of a cylinder 58 provided on the member 57a. It consists of an opening/closing drive cylinder 60 provided between an arm 56a provided on the gear 55a and the rotating arm 51 side. Chuck part 52
is the member 57b and member 57a in the positions shown in FIGS. 3 and 7.
and another member 59 are open to each other, and the apex guide 34 can move forward and backward between them, and when the apex guide 34 retreats, the apex 1
3 reaches between the rollers of the pressure bonding mechanism 3 from the tip of the apex guide 34, the cylinders 60 and 58
When the member 57b and the member 57a are brought into the closed state,
The apex 13 is sandwiched between the apex 59 and the apex 13. Furthermore, when the chuck portion 52 is rotated by the cylinder 54 from the illustrated clamping position, the bead ring support mechanism l
It reaches a joint action position 1152a shown in FIG. 7 near the top of the bead ring 12 supported by the bead ring 12.

The apex cutting mechanism 6 has a tilting frame so that the cutter 61 cuts from the top to the bottom between the tip of the apex guide 34 in the retracted position of the apex supply mechanism 2 and the chuck part 52 in the clamping position. In the figure, 62 is a cutter drive cylinder, 63 is a cylinder support member, 64 is a guide, and 65 is a cutter mounting member. The mounting position and angle of the cylinder support member 63 with respect to the tilting frame 29, the cutter mounting position of the cutter mounting member 65, etc. can be adjusted.

As shown in FIGS. 1 and 5, the filler supply guide mechanism 7 includes a suppression and cutting section 66 provided diagonally at the lower right position of the first support roller 21, and a filler supply section 67 that supplies filler thereto. Consisting of The pressing and cutting section 66 holds the tip of the filler fed out to the upper edge of the movable plate 68, presses and adheres it to a portion of the inner peripheral surface of the bead ring 12 near the first support roller 21, and also cuts the rear end of the filler. It is cut to size. The movable plate 68 rises from the illustrated lowered retracted position to the suppressed adhesion position. The moving plate 68 is provided with a filler feeding and clamping means operated by a cylinder, a filler detent pawl, and a tartar operated by a cylinder. The filler supply section 67 guides and supplies filler to the pressing and cutting section 66, and as shown in FIG.
7a is rolled up separately and fed out, guide roll 67b
and then guided to the pressing and cutting section 66.

The filler winding mechanism 8 has a first
The winding roller 70 is provided at a position between the support roller 21 and the second support roller 22, and is composed of a winding roller 70, a support arm 71, a drive arm 72, a drive cylinder 73, and a rotation transmission section 74, as shown in FIG. As shown in the figure, the roller members 70a and 70b are pressed in the axial direction by a spring 70c, and a groove 7 having a width corresponding to the width of the bead ring 12 is formed between the roller members 70a and 70b.
0d, is rotatably supported by a shaft 70e, and the shaft 70e is fixed to the tip of a support arm 71. The support arm 71 is fixed to a cylindrical member 71a rotatably fitted to a part of the shaft of the first support roller 21 at its base end. The base end of a drive arm 72 is fixed to the cylindrical member 71a, and a drive cylinder 73 is provided between the tip of the drive arm 72 and the machine frame 11. With this configuration, the first winding roller 70 is moved from the retracted position shown in FIG. 1 to the drive cylinder 73.
By the shortening operation, the bead ring 12 moves to the winding position and the bead ring 12 passes through the groove 704. roller member 70a,
Between the grooves 74a and 74b on the outer periphery of 70b and similar grooves provided on the outer periphery of the first support roller 21, the O-ring 7
4c and 74d are connected to form a rotation transmission section 74 that transmits the rotation of the first support roller 21.

The press roll mechanism 9 is provided on the left side of the second support roller 22 as shown in FIG.
It is made up of a pair of opposing rollers 75, 76, an independent roller 77, a roller support arm 78, and a drive cylinder 79. As shown in FIGS. 11 and 12, rollers 75 and 77 are supported by roller support arms 78 and are rotatable. The roller support arm 78 is rotatable about a shaft 78a on the machine frame 11 side as a fulcrum, and a cylinder 79 is provided between the lower end and the machine frame 11 side. As shown in FIG. 11, the rollers 75, 77 are moved by the operation of the cylinder 79 to a retracted position shown by solid lines and a pressing position shown by phantom lines. The roller 76 is provided parallel to the roller 75 at a position sandwiching the wound up filler, and is driven to rotate. In the figure, 76a is a roller support shaft, 76b, 76
c is a driving bevel gear. The support portion 78b of the rollers 75, 77 and the shaft 76 of the roller 76 of this press roll mechanism 9
A can be moved and adjusted in the left and right directions in FIG.

The guide roller mechanism 1O acts to guide the apex 13 or the apex 13 and the filler 14 that are attached to the bead ring 12 supported by the bead ring support mechanism 1, and is approximately located at the fourth support in FIG. Guide rollers 81 and 82 located between the roller 24 and the fifth support roller 25, and a support arm 83 that supports this roller.
, a guide rail 84, and a cylinder 85. The guide roller 81 is in contact with the apex 13 or the apex 13 and the filler from the front side in FIG. 1, and the guide roller 82 is in contact with the apex 13 and the filler from the opposite back side in FIG. Supported. The support arm 83 is provided with a sliding member 83a at its lower base, and is movable in the left-right direction in FIG. 1 along a guide rail 84. The guide rail 84 is fixed to the machine frame 11. The cylinder 85 is provided between the machine frame 11 side and the sliding part 83a.
．． 82 is moved to the illustrated guide action position and the retracted position on the right side thereof. In the figure, 86 is a guide rod located on the same side as the guide roller 82, and the third
Moving plate 23a supporting the fourth support roller 23.24
It is fixed to and moves to the operating position and the retracted position together with the third and fourth support rollers 23 and 24.

In addition, a bushing mechanism 90 and a kicking mechanism 91 are provided in order to take out the bead structure from the pasting device after pasting only the apex 13 or the apex 13 and the filler 14 to the bead ring 12. Bush mechanism 90
The structure is such that the upper part near the top of the processed bead structure is pushed toward the front side in FIG. kick mechanism 91
consists of a cylinder 92 provided on the movable plate 23a and a lever-like kick member 93. The kick member 93 is rotatably supported by a shaft 93a, and rotates by the extension operation of the cylinder 92 to move the lower part of the bead structure. In FIG. 1, it acts to push from the front side to the back side. When the bushing mechanism 90 and the kicking mechanism 91 operate simultaneously after the second and fifth support rollers 22, 25, etc. have retreated, the bead structure is reversed centering on the lower part and the top is on the lower side, and the kicking member It will be caught on the slightly bent part of 93. Once it is received in this state or in the middle of reversal, it can be easily transported out of the device using another device.

The Apex pasting device configured as described above is under sequence control and operates as follows.

(1) Apex supply mechanism 2, crimping mechanism 3. The chuck mechanism 5 and the apex cutting mechanism 6 are in a standby position where the tilting frame 29 is tilted upwardly on the left side in FIG. 3 with the shaft 35 as a fulcrum by the operation of the cylinder 31.

(2) At this time, the band-shaped apex 13 is taken out from the apex delivery mechanism, and its starting end is pulled out in an upright state up to the tip of the apex guide 34 of the apex supply mechanism 2. Also, the second to NS5 support rollers 22 to 2 of the bead ring support mechanism l that supports the bead ring 12 are
5 is in a retracted position inside the working position where the bead ring 12 is supported by each cylinder operation. Further, the strip-shaped filler 14 is pressed by the pressing and cutting portion 6 of the filler supply guide mechanism 7.
6, the filler starting end is pulled out and the moving plate 68 is at the retracted position, holding the filler starting end. In addition, the Bush mechanism 90
The kick mechanism 91 and the like are also in the retracted position.

(3) From such a standby state, the bead ring 12 is supplied to the bead ring support mechanism l and its first support roller 2
Attach it to groove 1. This can be done by an automatic mounting device on the bead ring support mechanism l or by hand.
is the first support roller 21 and the lower guide rod 86. Third
, the fourth support rollers 23, 24 come into contact with the inner surfaces of the large diameter portions, etc., and are supported slightly diagonally from the vertical plane, thereby becoming stable.

(4) In this supported state, the second to fifth support rollers 22 to 25
move from the retracted position to the active position and support the bead ring 12 with the groove bottoms abutting each other.

(5) Approximately in synchronization with (4), the moving plate 68 of the filler supply guide mechanism moves up and reaches the pressure bonding position, and presses and bonds the starting end of the filler 14 to a part of the inner circumferential surface of the bead ring. .

(6) Almost in synchronization with (4), the apex guide 34 advances due to the contraction operation of the cylinder 32, and the starting end of the apex 13 in the upright state is pulled out between the central rollers 46 of the crimping mechanism 3. . Subsequently, due to the operation of the cylinder 44, the rollers 46, 47, and 48 are brought into a clamping position close to each other and clamp the starting end of the apex 13.

(7) Following this, the tilting frame 29 is lowered by the operation of the cylinder 31, and therefore the crimping mechanism 3 is lowered while holding the starting end of the apex 13, thereby removing the bead supported by the bead ring support mechanism 1. The bead ring bonding surface of the starting end of the apex 13 is pressed onto the top of the outer periphery of the ring 12.

(8) Next, as the motor 27 rotates, the first support roller 21, the winding roller 70, and the roller 76 of the press roll mechanism 9 start rotating, and the bead ring 12 rotates at high speed.
The apex 13 is stuck to the outer circumference in an upright state, and at the same time, the filler 14 is also stuck to the inner circumference.

(9) Immediately after the motor 27 starts rotating, the drive cylinder 73
The winding roller 70 moves to the winding action position, and the filler 1 is moved from the starting end of the rotating filler 14 to the winding action position.
This winding process is shown in Figure 13 (a).
, As shown in (b), the filler 14 was applied to the bead ring 12 and the apex 13 adhered to its outer circumferential surface 12a from the state shown in (a) in which it was adhered only to the bottom surface, to the state in which it was adhered to both sides (b). ).

(lO) The starting end of the apex 13 attached to the rotating bead ring 12 is at a predetermined angle (from the starting end to the cutter 61
When the apex length to the cutting position approaches the rotation angle (the rotation angle at which the length of the apex to the cutting position is equal to the length of the outer circumference of the bead ring 12 plus the overlap joint length), the apex start end detector detects this, This causes the bead ring 12 to rotate at a low speed, and then stops rotating after a certain pulse. This stopping position is the position at the predetermined angle.

(11) The member 34a of the apex guide 34 moves a small distance (
For example, the apex 13 is raised to the intended chuck position. This is to prevent the two ends from being displaced from each other when the cutting start end and the cutting rear end are jointed later.

(12) From the open state, the chuck portion 52 of the chuck mechanism 6 closes by operating the cylinder 60 to clamp the apex 13 near the tip of the apex guide 34.

At this time, member 59 is in the retracted position.

(13) The cutter 61 of the apex cutting mechanism 6 advances by the operation of the cylinder 62 and cuts the apex 13. The state of the cutting is shown in Figure 14 (a), (b),
As shown in (c), a plan view of the apex 13 (a)
It is cut obliquely to the longitudinal direction, and the back surface is cut at right angles to the longitudinal direction in the front view (b).

(14) After the cutter 61- moves forward, the apex guide 34 is slightly pulled back by the operation of the cylinder 32a.

This is to prevent the cutter 61 from getting caught by the next starting end formed by cutting the band-shaped apex 13 when retreating. Subsequently, the cutter 61 is moved by the operation of the cylinder 62.
retreats.

(15) Rotation of the bead ring 12 is restarted. At the same time, the action of the cylinder 54 causes the chuck part 52 of the chuck mechanism 5 to hold the rear end of the apex 13 while holding the shaft 53.
The bead ring 12 rotates toward the bead ring side using the fulcrum as a fulcrum, and the bead ring 12 slows down after the set pulse has elapsed and stops rotating at a predetermined rotation angle position. At this time, the apex 1 cut to size
The rear end surface of the bead ring 12 and the end surface of the tip portion previously attached to the bead ring 12 come into contact with each other to form a di-B ind.

(16) Subsequently, the member 59 of the chuck portion 52 moves forward toward the member 57b by the operation of the cylinder 58, and presses the rigid point against the member 57b.

(17) After the time has elapsed, the member 59 moves back by the action of the cylinder 58, then the chuck part 52 opens by the action of the cylinder 60, and then the chuck part 52 rotates by the action of the cylinder 54 and returns to the original retracted position. .

(18) The bead ring 12 rotates, stops after a predetermined pulse, presses the filler supply guide mechanism 7, and cuts the cutter of the cutting section 66 to cut the rear part of the filler 14 to a fixed size (inner circumference length of the bead ring 12). Cut at the + overlap joint length) position.

(1g) After cutting the filler, the bead ring 12 restarts its rotation, rotates a predetermined number of pulses, and winds up all the filler 14 onto the bead ring with an apex, and at the same time presses the filler supply guide mechanism 7 and moves the cutting section 66. The plate 68 feeds out and clamps the cut end of the filler 14, and descends to return to the retracted position.

(20) Further, after a certain period of time after the filler 14 is cut, the inclined frame 29 is rotated upward about the shaft 35 by the operation of the cylinder 31 and returned to the inclined retracted position.

(21) The second to fifth support rollers 22 to 251 and the winding roller 70 return to their original retracted positions by the operation of their respective cylinders.

(22) At the same time, the bushing mechanism 90 and the kicking mechanism 91 operate, and the bead structure in which the apex 13 and filler 14 are pasted to the bead ring 12 is taken out.

In the above embodiment, the apex 13 is attached to the bead ring 12 and the filler 14 is attached to the bead ring 12 for winding.
In some cases, only the apex 13 is pasted on the filler 14, and in that case, the device may be configured such that the portion related to the filler 14 is removed.Furthermore, in the device of the embodiment, 511IJ! ! It may also be used in a configuration in which the closed portion is stopped at the retracted position and is not operated.

<Effects of the Invention> According to the present invention, the starting end of the apex is not particularly restrained after being crimped to the outer peripheral surface of the bead ring. The rear end of the apex is held between the chuck part and the chuck part is rotated downward along a convex arc to attach it to the remaining outer periphery of the bead ring and glue the starting end surface and rear end surface. Therefore, by adjusting in advance the rotation angle θ1 and the rotation angle θ2 from the joint position of the apex to the top of the beat wire, the starting end surface of the apex and the rear end surface can be made to coincide. As a result, there is no excess or deficiency of rubber near the apex joint, there is no shape deformation, the uniformity of the tire is improved, and this greatly contributes to improving tire quality.

In addition, the apex can be applied well to the bead ring, and the filler can also be applied and rolled up at the same time, so the workability is good.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention. 2. Fig. 1 is a partially enlarged front view showing the main parts as seen from the direction of arrow B in Fig. 2. Fig. 2 is a cross-sectional view taken along line A-A in Fig. 3 is a front view showing a portion supported by the tilting frame 29, FIG. 4 is a partial right side view, and FIG. 5 is a side view of the apex supply mechanism 2. FIG. 6 is a partial cross-sectional view of the right side of the crimping mechanism 3, FIG. 7 is an enlarged front view showing the relationship between the chuck mechanism 5 and bead ring 12, and FIG. 8 shows the chuck mechanism 5. a) is perpendicular to the opening and closing surface Enlarged view of the right side seen from the direction. (b) is a left side view of (a), (c) is a CC sectional view of (b), FIG. 9 is a front view showing the configuration of the filler supply guide mechanism 7, and FIG. 10 is a filler hoisting mechanism. 8 is a partially sectional enlarged plan view, and FIG. 11 is a right side view of the press roll mechanism 9.
2 is a cross-sectional plan view of the press roll mechanism 9, and FIG.
), (b) is a sectional view showing the state in which the apex is attached to the bead ring, FIG. 14 is a state in which the apex is cut, a) is a plan view, (b) is a front view, and (C) is a right side view. DESCRIPTION OF SYMBOLS 1... Bead ring support mechanism, 2... Apex supply mechanism, 3... Crimping mechanism, 5... Chuck mechanism, 6... Apex cutting mechanism, 7...・
Filler supply guide mechanism, 8...Filler winding mechanism, 9...Press roll mechanism, 10...Guide roller mechanism%11Φ・Φ・Machine frame, 12φ・φ・Bead ring, 13...・Apex, 14...Filler, 21...First support roller, 22...Second support roller, 23...Third support roller, 24...Fourth support roller , 25・Φ・・5th support roller, 29・・・
・・Tilt frame, 30-・War・Guide rail, No. 34...
Apex guide, 51...Rotating arm, 52...
...Chuck part, 61...Cutter, 70...
- Winding roller. Patent Applicant Sumitomo Rubber Industries Co., Ltd. Agent Tetsu Shimizu Haka 2 Meito 4 No. 61i2] 51110 times 57a (a) Shizu 8 times <b> Figure 14 Procedure correction tooth (voluntary)

Claims (4)

[Claims] (1) A bead ring is rotatably supported in the circumferential direction at a fixed position along a vertical or near-vertical surface by the inner circumferential surface, and a bead ring is supplied from one end along a substantially tangential direction to the top outer circumferential surface position of the bead ring. The bead ring attachment surface of the tip of the apex is crimped, and then the bead ring is rotated in the circumferential direction, and the rear part of the apex following the tip is attached to the bead ring according to the rotation, and in the middle of the attachment. The rotation of the bead ring is stopped at a predetermined rotation angle position, the rear part of the apex is held in front of the planned cutting position and cut to a fixed length, and then the rotation of the bead ring is restarted, and the cutter is cut to a fixed length in synchronization with the rotation. While holding the rear end of the apex that was clamped during cutting, rotate it downward along a convex arc toward the bead ring and attach it.Next, touch the rear end to the tip of the apex to form a joint. A method for attaching bead apex characterized by forming a bead apex. (2) A bead ring is supported on the inner peripheral surface so as to be rotatable in the circumferential direction at a fixed position along a vertical or near-vertical surface, and the bead ring is supplied from one end along a substantially tangential direction to the top outer peripheral surface position of the bead ring. At the same time, the bead ring attachment surface of the tip of the apec is crimped, and the attachment surface of the tip of a band-shaped filler supplied from one end to the inner circumferential surface of the bead ring is crimped to the inner circumferential surface position near the top of the bead ring. Next, the bead ring is rotated in the circumferential direction, and as the bead ring rotates, the apex and filler are pasted onto the bead ring, and the filler is wound onto the bead ring and the apex, and during the pasting and winding, the bead ring is Stopping the rotation at a predetermined rotation angle position, pinching the rear part of the apex in front of the planned cutting position and cutting the apex to a fixed length;
Next, restart the rotation of the bead ring, and in synchronization with the rotation, rotate the rear end of the apex that was clamped during cutting to size, while still clamping it, toward the bead ring by rotating it along a downward convex arc and attaching it. Next, the rear end surface is brought into contact with the front end surface of the apex to form a joint, and after the joint is formed, the rotation of the bead ring is stopped again, and while the rotation is stopped, the filler is cut to a fixed length, and then the bead ring is rotated. A bead apex application method that completes filler application and winding. (3) The bead ring is rotatably supported in the circumferential direction at a fixed position along a vertical or near-vertical surface by a bead ring support mechanism having a rotation drive part, and the bead ring is supported approximately toward the top outer circumferential surface position of the bead ring. The apex is supplied from one end by the apex supply mechanism in the tangential direction, and the tip is delivered to the crimping mechanism, and the crimping mechanism crimps the apex to the outer peripheral surface of the top of the bead ring, and the bead ring support mechanism rotates the bead ring. In the apex pasting device, the apex is pasted on the bead ring, the apex is cut to a certain size midway through, and the remaining pasting is completed. The bead ring is provided so as to reciprocate between a retracted position away from the vicinity and a forward position where the tip of the apex is delivered to the crimping mechanism, and the front position of the tip of the apex supply mechanism in the retracted position and the bead ring. A chuck mechanism is provided that can clamp the apex moving downward along a convex arc between the joint position where the tip of the apex on the outer peripheral surface near the top moves, and the apex at the retreated position is supplied. An apex pasting device characterized in that an apex cutting position of a sizing cutting mechanism is provided between a tip of the mechanism and a chuck mechanism located in front of the tip. (4) In the apex pasting device according to claim (3), the bead ring support mechanism is composed of a drive roller and a tension roller that are in contact with the inner circumferential surface of the bead ring, and the inner circumferential surface portion of the bead ring that is close to the top of the bead ring. A filler supply mechanism is provided for supplying a strip-shaped fuller from one end, a filler winding mechanism is provided at a position away from the filler supply mechanism in the rotating direction of the bead ring, and a filler sizing cutting section is provided in the filler supply mechanism. An apex pasting device characterized in that the apex is pasted on the outer peripheral surface of a bead ring, the filler is pasted on the inner peripheral surface of the bead ring, and the filler is wound around the bead ring and the apex.