JPH09183168A - Method for feeding bead and band and apparatus therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To feed highly efficiently and without asking a helping hand of an operator a bead and a band respectively to a bead setter and a tire molding drum even though the structure is simple and small. SOLUTION: An inside bead can be delivered to an inside bead setter 20 only by a small-sized and lightweight supporting tongue piece is forwarded by means of an air cylinder after a band D is positioned at a specified position and the working efficiency is improved thereby. In addition, as feeding of the outside bead to the outside bead setter 21 is performed by means of the supporting tongue piece and the air cylinder, labor saving can be attempted and in addition, this feeding can be performed only by providing the supporting tongue piece and the air cylinder on an existing movable stage 49 to make the structure simple and small.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and apparatus for supplying inner and outer beads to an inner and outer bead setter and a band to a tire building drum, respectively.

[0002]

2. Description of the Related Art As a conventional bead band supply method, for example, an operator sets an outer bead on an outer bead setter located on the other side of a tire forming drum, and a band holding means for holding a cylindrical band. While holding by, the step of holding the inner bead by the inner holding body on one side in the axial direction of the band, the step of retracting the outer bead setter laterally from the axial line of the band, the band, the inner bead respectively. The holding means for holding the band and the inner holding body are integrally transferred to one side along the axis of the band, and the inner bead is transferred from the inner holding body to the inner bead setter installed on one side of the tire forming drum. The process and the band holding means holding the empty inner holder and the band are integrally moved to the other side along the band axis, By positioning a predetermined position outside the tire building drum that and a delivery to step on the tire building drum is known.

[0003]

However, in such a conventional bead band supplying method, in order to transfer the inner bead to the inner bead setter, the band is temporarily moved over a predetermined position on the tire forming drum. Since the band is moved to the other side in order to return it to a predetermined position, the large and heavy band holding means reciprocates to increase the moving distance and reduce the work efficiency. There is a problem. In order to solve such a problem, the inner holder is brought into contact with the inner bead setter when the band reaches a predetermined position on the molding drum by adjusting the axial distance between the band and the inner bead. It is also possible to transfer the held inner bead from the inner holding body to the inner bead setter.However, if this is done, it may occur due to accumulated manufacturing errors of the inner bead, wear of the inner holding body, etc. Sometimes the inner holder collides with the inner bead setter, or a gap is created between them, and the delivery of the inner bead may fail, so it is difficult to put this into practical use. Is said. Further, in the bead band supply method as described above, the worker supplies the outer bead to the outer bead setter. However, such a bead, particularly the bead of a truck / bus tire is heavy. In addition, since the bead must be supplied to the recessed position of the outer bead setter, there is a problem that the worker is forced to work hard. Here, in order to mechanically perform such an operation of supplying the outer bead to the outer bead setter, it is conceivable to install a special outer bead supply means, but in this case, the entire device becomes large and the structure is increased. However, there is a problem that it becomes complicated.

The present invention provides a bead band supplying method and device capable of efficiently supplying beads and bands to a bead setter and a tire forming drum with a simple structure and a small size without the help of an operator. The purpose is to provide.

[0005]

SUMMARY OF THE INVENTION The purpose of the invention is as follows.
In addition, the inner and outer beads are respectively arranged on one side and the other side in the axial direction of the cylindrical band, and the outer bead setter located on the other side of the tire forming drum is retracted laterally from the axial line of the band. Process and the band,
Transferring the inner and outer beads integrally to one side along the axis of the band, positioning the band at a predetermined position on the outer side of the tire building drum, and returning the outer bead setter to the axis of the band. , The inner bead and the outer bead are respectively transferred to one side and the other side in the axial direction, while the inner bead setter installed on one side of the tire building drum holds the inner bead, and the outer bead setter holds the outer bead, respectively, Secondly, the bead band supply method including the step of holding the band on the tire building drum, the second step is to install the band on the outer side of the tire building drum that is coaxial with the band, on one side in the axial direction of the tire building drum. The inner bead setter is provided with the inner bead on the other side in the axial direction of the tire forming drum, and the position on the axis of the band and the axis. A bead band supply device that supplies and holds outer beads to an outer bead setter that can move between a position retracted to the side from a side, and a movable base that extends along the axis of the band and a movable base. A band holding means which is provided in the center of the table and can hold a band, an inner holding body which is provided at one end of the movable table and can hold an inner bead, and an outside which is provided at the other end of the movable table. An outer holding body capable of holding a bead, a drive means for moving the movable base along the axis of the band, an inner moving means for moving the inner holding body in the axial direction, and an outer holding body in the axial direction. When the outer bead setter is retracted from the axial line of the band, the band is held by the band holding means, and the inner and outer beads are held by the outer holding body. After the carriage by driving means in a state where each is held, it is moved to the band reaches a predetermined position outside the tire building drum,
The outer bead setter is returned to the axial line, and then the inner and outer holders are moved to one side and the other side in the axial direction by the inner and outer moving means, respectively. This can be achieved by a bead band supply device in which the setters are delivered and held respectively, and the bands are delivered and held from the band holding means to the tire forming drum.

First, while holding the cylindrical band by the band holding means, the inner and outer beads respectively arranged on one side and the other side in the axial direction of the band are set to the inner side,
It is held by the outer holder. At this time, the outer bead setter located on the other side of the tire building drum is retracted laterally from the axis of the band. Next, the movable table, the band holding means holding the band, the inner side, the inner side holding the outer bead, and the outer side holding body are integrally moved by the driving means to one side along the band axis, To a predetermined position outside the tire building drum. At this time,
Since the outer bead setter is retracted from the axis of the band as described above, the band holding means and the like can move without interference from the outer bead setter. Next, after returning the outer bead setter to the axis of the band, the inner and outer holders are moved to one side and the other side in the axial direction by the inner and outer moving means, respectively, so that the inner and outer beads are set to the inner and outer sides. The inner and outer bead setters are delivered and held from the holder, respectively, and the band is delivered and held from the band holding means to the tire forming drum. After locating the band at a predetermined position on the outside of the tire building drum in this way, it is only necessary to move the inner and outer holders, which are small and lightweight, by the inner and outer moving means to the axial one side and the other side, respectively. , Inside, the inside that the outer holder holds,
Since the outer beads can be delivered to the inner and outer bead setters respectively, work efficiency is improved. Also, the supply of the outer beads to the outer bead setter is performed by the outer holder,
Since it is carried out by the outer moving means, it is not necessary to lend a hand of an operator, and labor can be saved. Moreover, since such an outer bead can be supplied simply by attaching the outer holder and the outer moving means to the existing movable base, the structure of the entire device can be simplified and the size can be reduced.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. In FIG. 1, reference numeral 11 is a base installed on a floor surface 12, and a tire molding apparatus 13 (first molding apparatus in the two-stage molding method) is installed at one end of the base 11 and the tire molding apparatus 13 Is the drive unit 14,
The tire forming drum 15 is provided on the other side of the drive unit 14 and is expandable and contractible and driven and rotated by the drive unit 14. Further, a band forming device 16 is installed at the other end of the base 11, and the band forming device 16 is provided on the drive unit 17 and one side of the drive unit 17, and is expanded and contracted by being driven and rotated by the drive unit 17. And a possible band forming drum 18. Then, when a tire constituent material, for example, a carcass ply is supplied to the band forming drum 18 which is driven and rotated by the driving unit 17, the tire constituent material is wound around the band forming drum 18 to form a cylindrical band D. The band D is molded, but the band D is formed by the tire molding drum 15 and the band molding drum 18.
Since and are coaxial, they are coaxial with the tire building drum 15. An inner bead setter 20 is installed on one side of the tire building drum 15 in the axial direction, and the inner bead setter 20 can move axially between the tire building drum 15 and the driving unit 14. Reference numeral 21 denotes an outer bead setter installed on the other side of the tire forming drum 15 in the axial direction, and the outer bead setter 21 can move in the axial direction. Also,
The outer bead setter 21 can swing between an upright position and an inclined position around the lower end, is located on the axis of the band D in the upright position, and is in the inclined position. Evacuate from the line to the side.

1 and 2, reference numeral 24 denotes a pair of guide rails laid on the base 11 and extending parallel to the axis of the band D. These guide rails 24 have a movable frame.
A slide bearing 26 fixed to the lower surface of 25 is slidably engaged. As a result, the movable frame 25 can move along the axis of the band D while being guided by the guide rails 24. A pair of upright ring bodies 27 coaxial with the axis of the band D and having an inner diameter larger than that of the band D are attached to the central portion of the movable frame 25 in the longitudinal direction. At the other end in the longitudinal direction, the band D is coaxial with the axis of the band D.
The upright one-side ring body 28 and the other-side ring body 29 having a larger inner diameter are attached.

A plurality of (seven in this embodiment) expansion / contraction mechanisms 30 are installed on the ring body 27 in the circumferential direction, and each expansion / contraction mechanism 30 is radially attached to a guide 31 fixed to the ring body 27. It has a movable rod 32 movably supported. Each movable rod 32 extends in the radial direction, and a gripping body 33 made of a permanent magnet is attached to an inner end of the movable rod 32 in the radial direction so as to extend along the axis of the band D. When these gripping bodies 33 come into contact with the outer periphery of the band D as shown by the phantom line in FIG. 2, the steel cords embedded in the band D are adsorbed and the band D is held from the outside. Further, pins 34 are fixed to the movable rod 32, respectively. Reference numeral 35 denotes a transmission arm whose base end is swingably supported by a ring body 27 between two adjacent guides 31 via a pin 36, and the pin 34 is inserted into the tip of each transmission arm 35. The long hole 37 is formed. In addition, a pair of protrusions spaced apart from each other in the circumferential direction is provided at the base end of the transmission arm 35.
38 is formed (one projection 38 is formed on the two transmission arms 35 located at the ends). The movable rod 32 described above,
The transmission arm 35 as a whole constitutes the expansion / contraction mechanism 30 for synchronously moving the gripping body 33 in the radial direction to expand / contract it. Further, both ends of the synchronization rod 40 are connected to the protrusions 38 of the adjacent transmission arms 35 via the pins 39, respectively, so that the expansion / contraction mechanisms 30 adjacent to each other can be synchronously operated via the synchronization rod 40. Be connected. When the transmission arm 35 swings in synchronization with the synchronization rod 40,
The grip body 33 moves in the radial direction in synchronization.

Reference numeral 43 is an air cylinder, and the head side of the air cylinder 43 is connected to the ring body 27 via a pin 44 and a bracket 45. In addition, this air cylinder 43
The tip of the piston rod 46 is connected to an arbitrary transmission arm 35 via a pin 47 and a link 48. The air cylinder 43 is provided with a known intermediate stop mechanism that applies a braking force to the piston rod 46 and fixes it at an arbitrary position. The movable frame 25, the one-sided ring body 28, and the other-sided ring body 29 as a whole constitute a movable base 49 extending along the axis of the band D, and the ring body 27, the expansion / contraction mechanism 30, and the synchronizing rod described above. The band 40, the air cylinder 43, and the link 48 as a whole constitute a band holding means 50 which is provided at the center of the movable table 49 in the longitudinal direction and can hold the band D.

In FIGS. 1, 3, 4, 5, 6, 7, and 8,
A plurality of guide rods 54, 55 extending in parallel to the axis of the band D, here three guide rods 54, 55 are axially movably inserted into the outer peripheral portions of the one side and the other side ring bodies 28, 29, respectively. The rods 54 and 55 are arranged at equal distances in the circumferential direction. An inner movable ring 56, which is coaxial with the one-sided ring body 28 and has an inner diameter larger than that of the band D, is attached to the tip of the guide rod 54 protruding from one sided ring body 28 to the one side. An outer movable ring 57, which is coaxial with the other side ring body 29 and has an inner diameter larger than that of the band D, is fixed to the tip protruding from the other side ring body 29 to the other side.

A plurality of (five in this embodiment) expansion / contraction mechanisms 58, 59 are equidistantly arranged in the circumferential direction on the inner and outer movable rings 56, 57, respectively.
8, 59 are movable bodies 62 supported by guides 60, 61 fixed to inner and outer movable rings 56, 57 so as to be movable in the radial direction,
Has 63. These movable bodies 62, 63 extend in the radial direction, and radial portions 64, 65 slidably engaged with the guides 60, 61.
And axial portions 66 and 67 extending in parallel to the axis of the band D from the radially inner ends of the radial portions 64 and 65 toward one side and the other side, respectively. These axial parts 66,
67 has a convex lens shape in cross section, and its outer periphery is located on the same circle centered on the axes of the inner and outer movable rings 56, 57. Guide grooves 68, 69 extending along the axis of the band D are formed in the central portions in the circumferential direction of the axial portions 66, 67, respectively, and these guide grooves 68, 69 are provided with sliders.
70 and 71 are inserted so as to be movable in the axial direction. And
Supporting tongues 72 and 73 are provided at inner ends of the sliders 70 and 71 in the radial direction so as to project from one end and the other end of the sliders 70 and 71 toward one side and the other side, respectively. 74,
Reference numeral 75 is a spring housed in the axial direction portions 66 and 67. These springs 74 and 75 press the sliders 70 and 71 toward one side and the other side, respectively, and the supporting tongue piece 72. , 73 are made to project from the end faces on one side and the other side of the axial direction portions 66, 67. Then, the outer peripheries of all the supporting tongues 72 and 73 are inner and outer beads (here, beads with stiffeners F1 and F2) B
When the inner and outer beads B1 and B2 come into contact with the inner circumferences of 1 and B2, respectively, the supporting tongue pieces 72 serving as the inner and outer holding bodies,
It is held from the inside by 73. In addition, the movable body 62, 63
Pins 78 and 79 are fixed to each. 80 and 81 are inner and outer movable rings 5 between two adjacent guides 60 and 61.
6 and 57 are transmission arms whose base ends are swingably supported via pins 82 and 83, and elongated holes into which the pins 78 and 79 are inserted at the distal ends of the transmission arms 80 and 81. 84 and 85 are formed respectively. Further, a pair of protrusions 86, 87 spaced apart in the circumferential direction are formed at the base end portions of the transmission arms 80, 81 (one protrusion 86, 87 is provided for the two transmission arms 80, 81 located at the ends).
Has been formed). The movable bodies 62 and 63 and the transmission arms 80 and 81 described above as a whole include sliders 70 and 71, support tongues 72,
The expansion / contraction mechanisms 58 and 59 for synchronously moving 73 in the radial direction are configured. Also, the protrusions of two adjacent transmission arms 80, 81
Both ends of the synchronizing rods 90 and 91 are connected to the 86 and 87 via the pins 88 and 89, respectively, so that the expansion / contraction mechanisms 58 and 59 adjacent to each other are synchronously operated via the synchronizing rods 90 and 91. Connected to each other. Then, the transmission arm 80,
When 81 is oscillated synchronously by the synchronizing rods 90 and 91, the support tongues 72 and 73 synchronously move in the radial direction.

Reference numerals 94 and 95 denote air cylinders. Heads of the air cylinders 94 and 95 have pins 96 and 97 and a bracket 9 respectively.
It is connected to the inner and outer movable rings 56 and 57 via 8, 99. The tips of the piston rods 100, 101 of the air cylinders 94, 95 are connected to arbitrary transmission arms 80, 81 via the pins 88, 89. The air cylinders 94 and 95 are provided with a known intermediate stop mechanism that applies a braking force to the piston rods 100 and 101 to fix them at arbitrary positions.

In FIGS. 1, 3 and 4, reference numeral 106 denotes a drive motor housed and fixed at one end of a longitudinally extending pit formed in the base 11, and a sprocket 107 fixed to the output shaft of the drive motor 106. A chain 109 connected to the movable frame 25 is stretched between the sprocket 108 which is housed in the other end of the pit and is rotatably supported by the base 11. As a result, when the drive motor 106 operates and the chain 109 travels, the movable base is
The band 49, the band holding means 50, and the support tongues 72, 73 integrally move reciprocally along the axis of the band D while being guided by the guide rail 24. Drive motor 106, sprocket mentioned above
107, 108 and the chain 109 together constitute a driving means 110 for moving the movable base 49 along the axis of the band D. An air cylinder 116 is fixed to the one side ring body 28 and extends in parallel to the axis of the band D as an inner moving means. The tip of a piston rod 117 of the air cylinder 116 is connected to the inner movable ring 56. . As a result, when the air cylinder 116 operates, the inner movable ring 56,
The expansion / contraction mechanism 58 and the support tongue 72 move together in the axial direction of the band D. 118 is an air cylinder fixed to the other side ring body 29 and extending parallel to the axis of the band D as an outer moving means.
The tip of 19 is connected to the outer movable ring 57. As a result, when the air cylinder 118 operates, the outer movable ring 57, the expansion / contraction mechanism 59, and the support tongue 73 integrally move in the axial direction of the band D.

Next, the operation of the embodiment of the present invention will be described. Now, the band forming drum of the band forming device 16
A molded cylindrical band D is supported on 18 and a molded green case is supported on the tire molding drum 15 of the tire molding apparatus 13. At this time, the movable base 49 and the band holding means 50 stand by at the standby position T between the band forming device 16 and the other side bead setter 21.

Next, when the drive motor 106 of the drive means 110 is operated and the chain 109 travels, the movable base 49, the band holding means 50, and the support tongues 72 and 73 are integrated into a guide rail.
Move toward the other side while being guided by 24. And
This movement is stopped when the band holding means 50 reaches the receiving position U where the axial center of the band holding means 50 is aligned with the axial center of the band holding means 50. Next, the air cylinder 43 of the band holding means 50 operates and the piston rod 46 of the air cylinder 43 projects. As a result, the transmission arm 35 of each expansion / contraction mechanism 30 receives the driving force via the synchronous rod 40 and thereby oscillates in synchronization, thereby moving the movable rod 32 and the gripping body 33 inward in the radial direction in synchronization. When the grip 33 contacts the outer periphery of the band D,
The protrusion of the piston rod 46 of the air cylinder 43 is stopped, and the piston rod 46 is locked at this position by the intermediate stop mechanism. As a result, each gripping body 33 adsorbs the steel cord in the band D and holds the band D from the outside. When such work is performed, the inner and outer beads B1 and B2 with the stiffeners F1 and F2 are movable to the one side and the other side in the axial direction of the band D by the bead loading device or the worker, specifically, the inner and outer sides. The rings 56 and 57 are carried into the axial one side and the other side, respectively. After that, when the air cylinders 94 and 95 operate and the piston rods 100 and 101 retract, the transmission arms 80 and 81 of the expansion and contraction mechanisms 58 and 59 receive the driving force via the synchronization rods 90 and 91 and oscillate synchronously. , The movable bodies 62 and 63, the sliders 70 and 71, and the support tongues 72 and 73 are synchronously moved outward in the radial direction. And the supporting tongues 72, 73
Contact with the inner circumferences of the inner and outer beads B1 and B2, the piston rods 100 and 101 of the air cylinders 94 and 95 are stopped from retracting, and the piston rods 100 and 101 are locked at the positions by an intermediate stop mechanism. . This allows
The support tongues 72, 73 hold the inner and outer beads B1, B2 from the inner side. Next, the band forming drum 18 is reduced in diameter, and the band D
Is transferred from the band forming drum 18 to the band holding means 50. At this time, when the inner and outer beads B1 and B2 are loaded by the bead loading device, the bead loading device is
After the outer beads B1 and B2 are released from the grip and the inner and outer beads B1 and B2 are transferred to the support tongues 72 and 73, they are moved and returned to the initial position. On the other hand, in the tire forming apparatus 13, the diameter of the tire forming drum 15 is reduced, and the formed green case is taken out from the tire forming drum 15 and the next step (second
To a molding device). In addition, at this time, the outer bead setter 21 swings to the inclined position around the lower end and retracts laterally from the axis of the band D.

Next, the drive motor 106 operates to activate the chain.
109 travels, and the movable base 49, the band holding means 50 holding the band D, and the support tongues 72, 73 holding the inner and outer beads B1 and B2 are integrally guided by the guide rail 24. While moving to one side, namely band D, inner and outer beads
B1 and B2 are transported at the same time. At this time, since the outer bead setter 21 is retracted from the axial line of the band D as described above, the band holding means 50 and the like are provided to the outer bead setter 21.
You can move without interference from. This movement is stopped when the axial center of the band holding means 50 reaches a predetermined position, that is, the delivery position W which coincides with the axial center of the tire forming drum 15. Next, the outer bead setter 21 is swung to the upright position around the lower end, and the outer bead setter 21 is returned to the axis of the band D. At this time, the band forming drum 18 is expanded to the initial diameter.

Next, the air cylinders 116, 118 are actuated to project the piston rods 117, 119, and the inner movable ring 56, the movable body 62, the supporting tongue 72, the inner bead B1 with the stiffener F1 are axially moved to one side. The outer movable ring 57, movable body
63, the support tongue 73, and the outer bead B2 with the stiffener F2 are moved to the other side in the axial direction. The support tongues 72, 73 are provided on the inner and outer bead setters 20, 21 as shown in FIGS. Abut each,
Since the movement is continued even after this contact, the inner and outer beads B1 and B2 are pushed by the end faces of one side and the other side of the axial portions 66 and 67, respectively, and slide on the supporting tongues 72 and 73 to support the protrusions. 123, 124
Transfer to the top. At this time, the sliders 70, 71 and the support tongue 7
2, 73 are axial parts 66, 6 while compressing the springs 74, 75.
Pushed into 7. In this way, the inner and outer beads B1 and B2 held by the supporting tongues 72 and 73 are attached to these supporting tongues 7.
Support protrusions for inner and outer bead setters 20, 21 from 2, 73
When the piston rods 117 and 119 of the air cylinders 116 and 118 are retracted and passed to the 123 and 124, respectively, the inner and outer movable rings 56 and 57, the movable bodies 62 and 63, and the support tongues 72 and 73 are rotated. It moves to one side in each direction and returns to the initial position. At this time, the sliders 70, 71 and the supporting tongues 72, 73 are urged by the springs 74, 75 to move to the one side in the axial direction and the other side, respectively, and the supporting tongues 72, 73 move to the axial direction portions 66, 67. It projects from the one end surface and the other end surface, respectively. Next, the piston rods 100 and 101 of the air cylinders 94 and 95 are retracted to the stroke end, and the movable bodies 62 and 63, the sliders 70 and 71, and the support tongues 72 and 73 are synchronized, as shown by the solid line in FIG. Move to the outer limit in the radial direction.

Next, the outer diameter of the tire forming drum 15 is increased until it becomes larger than the inner diameter of the band D. At this time, since the axial length of the band D is longer than the axial length of the tire forming drum 15, only the axial center portion of the band D is expanded, and both axial end portions maintain the initial diameter and are bordered. A step (shoulder) is formed on the. When the band D is thus held from the inside by the tire forming drum 15, the piston rod 46 of the air cylinder 43 is retracted to move the movable rod 32 to the outside in the radial direction, and the grip body 33 is detached from the band D. . As a result, the band D is delivered from the band holding means 50 to the tire forming drum 15. Band D like this
After being positioned at a predetermined position on the outside of the tire forming drum 15, the air cylinders 116 and 118 are used to support the small and lightweight supporting tongues 72 and 73 respectively by moving them forward and backward in the axial direction. Since the inner and outer beads B1 and B2 held by the tongue pieces 72 and 73 can be transferred to the inner and outer bead setters 20 and 21, respectively, the work efficiency can be improved. Further, since the support tongue 73 and the air cylinder 118 supply the outer bead B2 to the outer bead setter 21, it is not necessary to require the help of an operator, and labor can be saved. Moreover, since the outer bead B2 can be supplied only by attaching the support tongue 73, the air cylinder 118, and the like to the existing movable base 49, the structure of the entire device can be simplified and downsized.

Next, the outer bead setter 21 is swung to the inclined position and retracted laterally from the axis of the band D. After that, the drive motor 106 is operated to drive the chain 109 to move the movable base 49, the band holding means 50, and the support tongues 72 and 73 to the other side, and return to the standby position T. At this time, since the movable bodies 62 and 63 are located at the outer limits in the radial direction as described above, they do not interfere with the tire forming drum 15 having the expanded diameter. Then the piston rod 100, 1 of the cylinder 94, 95
01 is projected to the stroke end to move the movable bodies 62, 63 and the supporting tongues 72, 73 to the inner limits in the radial direction, and the outer bead setter 21 is swung to the upright position to return to the axis of the band D. After that, the inner bead setter 20 is moved to the other side in the axial direction and the outer bead setter 21 is moved to the one side in the axial direction, and these inner and outer bead setters 20 and 21 are moved.
Set the inner and outer beads B1 and B2 with stiffeners F1 and F2, which are held by, on the shoulders of band D. Next, move the inner bead setter 20 to one side in the axial direction, and the outer bead setter 20.
21 is moved to the other side in the axial direction to return to the initial position, and the bladder (not shown) is inflated and deformed by being pressed by the inner and outer bead setters 20 and 21 to be axially outer than the inner and outer beads B1 and B2. Band D is folded back in the axial direction to form a green case. During the above-described work, the tire forming material is supplied to the band forming drum 18 which is driven and rotated by the drive unit 17 and wound around the band forming drum 18 to form a cylindrical band D. The above is one cycle of the operation of the embodiment of the present invention, and thereafter, this cycle is repeated to successively form the green cases.

In the above embodiment, the inside,
Although the outer beads B1 and B2 are held from the inner side in the radial direction by the support tongues 72 and 73, they may be held from the outer side in the radial direction in the present invention.

[0022]

As described above, according to the present invention, the bead and band can be efficiently supplied to the bead setter and the tire forming drum without the help of an operator while having a simple structure and a small size. You can

[Brief description of the drawings]

FIG. 1 is a schematic front view showing an embodiment of the present invention.

FIG. 2 is a side view of a band holding means.

FIG. 3 is a partially cutaway front view of the vicinity of an inner movable ring.

FIG. 4 is a partially cutaway front view of the vicinity of an outer movable ring.

FIG. 5 is a view taken along the line II of FIG.

FIG. 6 is a view taken along the line II-II in FIG.

FIG. 7 is a front sectional view of the vicinity of a support tongue holding an inner bead.

FIG. 8 is a front cross-sectional view of the vicinity of a support tongue holding an outer bead.

[Explanation of symbols]

 15 ... Tire forming drum 20 ... Inner bead setter 21 ... Inner bead setter 49 ... Movable stand 50 ... Band holding means 72 ... Inner holding body 73 ... Outer holding body 110 ... Driving means 116 ... Inner moving means 118 ... Outer moving means B1 ... Inner bead B2… Outer bead D… Band

Claims (2)

[Claims] 1. An inner bead and an outer bead are respectively arranged on one side and the other side in the axial direction of a cylindrical band, and an outer bead setter located on the other side of a tire forming drum is laterally disposed from the axial line of the band. A step of retracting the band, the inner side and the outer side bead integrally to one side along the axis of the band, and positioning the band at a predetermined position on the outer side of the tire forming drum; and the outer bead setter. The step of returning to the axis of the band, the inner bead and the outer bead are respectively transferred to one side and the other side in the axial direction, and the inner bead set to the inner bead setter installed on one side of the tire building drum, and the outer bead setter. And a step of holding the band on the tire-forming drum while holding the outer beads respectively. Method. 2. A band outside the tire building drum that is coaxial with the band, an inner bead setter on one side in the axial direction of the tire building drum, and an inside bead on the other side in the axial direction of the tire building drum. A bead band supplying device for supplying and retaining outer beads to the outer bead setters that are installed in the outer bead setter and that can move between a position on the axis of the band and a position retracted laterally from the axis. , A movable base extending along the axis of the band, a band holding means provided in the center of the movable base for holding the band, and an inner holding provided at one end of the movable base for holding an inner bead A body, an outer holding body provided at the other end of the movable table and capable of holding an outer bead, driving means for moving the movable table along the band axis, and the inner holding body. A band holding means is provided with an inner moving means for moving the body in the axial direction and an outer moving means for moving the outer holding body in the axial direction, and when the outer bead setter is retracted from the axial line of the band. After moving the movable table by the driving means while holding the inner and outer beads respectively on the inner and outer holders until the band reaches a predetermined position on the outer side of the tire forming drum,
The outer bead setter is returned to the axial line, and then the inner and outer holders are moved to one side and the other side in the axial direction by the inner and outer moving means, respectively. A bead band supply device characterized in that the band is delivered and held by each setter, and the band is delivered and held by the tire holding drum from the band holding means.