JP4557465B2 - Bead ring transfer device and bead ring transfer method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a bead ring transport apparatus and a bead ring transport method, and in particular, a bead ring transport apparatus and a bead ring capable of accurately transporting a heavy, large bead ring to a tire molding drum. It is related with the conveyance method.
[0002]
[Prior art]
In the production process of a green tire, a tire molding drum is used to form a green tire.
[0003]
In the tire molding drum, an inner liner (unvulcanized) is first wound, and then a carcass ply (and other tire constituent members) is wound around the outer peripheral surface of the inner liner, and the outer peripheral portion is made of a rubber composition. A bead ring with a stiffener provided with a stiffener is set, and further, other tire constituent members are attached.
[0004]
Conventionally, a plurality of bead rings with stiffeners are stored in a bead cart, and are taken out one by one by a bead transport device and transported to a tire molding drum at the time of use.
[0005]
[Problems to be solved by the invention]
However, in the conventional bead transport device (for example, JP-A-9-201883, etc.), the bead ring is adsorbed and held by a magnet, so that a bead ring having a relatively small diameter used for passenger car tires can be held. However, a large-diameter bead ring (for example, a diameter of 57 to 73 inches and a weight of 110 to 305 kg) used for construction vehicle tires or the like could not be held.
[0006]
Further, there is a bead transport device that transports a bead ring fitted to a holder. However, a holder must be prepared for each bead ring diameter, and the replacement work of the holder is complicated.
[0007]
The present invention has been made to solve the above-mentioned problem, does not replace parts such as a holder, has a weight, and can reliably hold even a bead ring of a different size. It is an object of the present invention to provide a bead ring transport apparatus and a bead ring transport method capable of transporting a bead ring to a tire molding drum while matching the bead ring axis.
[0008]
[Means for Solving the Problems]
The invention according to claim 1 is a bead ring transport device for transporting the bead ring to the tire molding drum, the inner gripping device capable of holding the bead ring from the inner surface side, and the bead ring in the axial direction. A side gripping device that can be held from both sides, the side gripping device holding a first moving member that is movable along the axis of the tire molding drum and a beading ring that can clamp the bead ring from both side surfaces. And the first moving member, and the holding means is movably held in a substantially radial direction around a first axis coaxially provided with the axis of the tire molding drum, and First driving means for moving each clamping means synchronously so that the distances of each clamping means measured from the first axis are the same, and the clamping means are moved in the width direction of the bead ring before A second driving means for sandwiching the bead ring, wherein the inner gripping device is movable in a direction intersecting the axis of the tire molding drum, and an inner peripheral surface of the bead ring A plurality of inner surface holding members capable of abutting against the second moving member, and holding the inner surface holding means so as to be movable in a substantially radial direction around a second axis. And a third driving means for moving each inner surface holding member synchronously so that the distances in the radial direction of each inner surface holding member measured from the axis line of the inner gripping device are the same. The second axis is movable between a first position where the two axis lines are arranged on an extension line of the first axis line of the side gripping device and a second position away from the movement locus of the side gripping device. It is characterized by that.
[0009]
Next, the operation of the bead ring conveying device according to claim 1 will be described.
[0010]
The bead ring is initially held in the inner gripping device.
[0011]
First, in the inner gripping device, the inner surface holding means is moved to the second axis side, and the radius of the circumscribed circle passing through the outer end portion as viewed from the second axis of the inner surface holding means is set smaller than the inner diameter of the bead ring. To do.
[0012]
Next, the inner surface holding means is moved away from the second axis, pressed against the inner peripheral surface of the bead ring, and the bead ring is held from the inner peripheral surface side by the inner surface holding means.
[0013]
The second moving member is moved to the first position, and the second axis is disposed on an extension of the first axis of the side gripping device.
[0014]
The side gripping device is moved along the axis of the tire molding drum so that the clamping means is located on the radially outer side of the bead ring.
[0015]
The clamping means is moved to the first axis side and arranged on both sides of the bead ring, the clamping means is moved by the second driving means to clamp the bead ring from both sides, and the inner surface holding means is moved to the second axis side. Move to release inner surface holding means from bead ring.
[0016]
As a result, the bead ring is transferred to the side gripping device.
[0017]
The side gripping device holding the bead ring is moved in a direction away from the tire molding drum and separated from the inner surface gripping device.
[0018]
The inner gripping device is moved to the second position.
[0019]
Since the inner gripping device retreats from the movement trajectory of the side gripping device, the side gripping device is moved to the tire molding drum side, and the side gripping device is stopped at the bead ring mounting position.
[0020]
Since the axis of the bead ring coincides with the axis of the tire molding drum, the bead ring can be optimally attached to the tire component on the tire molding drum.
[0021]
After that, the bead ring is released, the clamping means is moved to the side away from the first axis, and the side gripping device is retracted to the outside of the tire molding drum.
[0022]
According to a second aspect of the present invention, in the bead ring conveyance device according to the first aspect, the second driving means includes an air cylinder that moves the clamping means in the width direction of the bead ring. It is characterized by.
[0023]
Next, the operation of the bead ring conveying device according to claim 2 will be described.
[0024]
In the bead ring conveying device according to the second aspect, since the holding means is moved by the air cylinder, the bead ring can be held with a large force.
[0025]
The method for conveying a bead ring according to claim 3 includes a first step of holding the bead ring from the inner peripheral surface side so that the axis of the bead ring is located on an extension of the axis of the tire molding drum, The second step of receiving the bead ring held from the both sides in the width direction and receiving the bead ring held from both sides in the width direction is moved along the axis of the tire molding drum and inserted from one end of the tire molding drum. And a fourth step of separating the bead ring at a predetermined position of the tire constituent member arranged on the tire molding drum and setting the bead ring on the tire constituent member. Yes.
[0026]
In the bead ring transport method according to the third aspect, first, the bead ring is held from the inner peripheral surface side in the first step so that the axis of the bead ring is located on the extension line of the axis of the tire molding drum.
[0027]
In the next second step, the bead ring held from the inner peripheral surface side is sandwiched and received from both sides in the width direction.
[0028]
In the third step, the bead ring sandwiched from both sides in the width direction is moved along the axis of the tire molding drum, and the bead ring is inserted from one end of the tire molding drum.
[0029]
In the fourth step, the bead ring is released at a predetermined position of the tire constituent member disposed on the tire molding drum.
[0030]
Thereby, the bead ring is mounted on the tire constituent member.
[0031]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an example of an embodiment of the present invention will be described in detail with reference to the drawings.
[0032]
As shown in FIG. 1, a band server 18 that transports tire constituent members such as an inner liner and a carcass ply to the tire molding drum 16 is provided in the arrow B direction orthogonal to the axial direction of the tire molding drum 16 provided horizontally. Has been placed.
[0033]
The tire molding drum 16 is supported in a cantilevered manner so as to be rotatable with respect to a column 20 disposed on the floor surface on the arrow L direction side.
[0034]
In the vicinity of the tire molding drum 16, a bead ring conveying device 10 including an inner surface gripping device 12 and a side surface gripping device 14 is provided.
[0035]
The inner surface gripping device 12 is disposed on the arrow R direction side of the band server 18, and the side surface gripping device 14 is disposed along the axis of the tire molding drum 16.
(Inner gripping device)
As shown in FIGS. 1 and 2, the inner surface gripping device 12 is attached to a slide block 22B that is slidably supported by a guide rail 22A that constitutes a linear motion bearing 22, and is attached to an axis 16C of the tire molding drum 16. On the other hand, it is movable in the orthogonal direction.
[0036]
The inner surface gripping device 12 includes a column 24 having a slide block 22B attached to the lower surface.
[0037]
A support shaft 26 is horizontally attached to the side surface of the column 24.
[0038]
The axis 26C of the support shaft 26 and the axis 16C of the tire molding drum 16 are parallel to each other, and the height from the floor surface 28 is set to be the same.
[0039]
The support shaft 26 is provided with a pair of inner surface grip portions 30.
[0040]
As shown in FIGS. 3 and 4, the inner surface grip portion 30 includes an annular base plate 32 fixed to the support shaft 26.
[0041]
On the outer peripheral portion of the base plate 32, eight protrusions 32A are formed at equal intervals in the outer peripheral direction.
[0042]
Each of the shafts 34 is fixed to one side of the protrusion 32A.
[0043]
Each shaft 34 is provided in parallel with the support shaft 26, and all the distances from the axis 26 </ b> C of the support shaft 26 are the same.
[0044]
As shown in FIG. 5, a link 36 that is bent in a letter shape is rotatably supported on the shaft 34.
[0045]
A roller 38 is rotatably supported on one end side of the link 36.
[0046]
A long hole 40 is formed on the other end side of the link 36.
[0047]
As shown in FIGS. 3 and 5, an annular movable plate 42 is disposed on the side of the base plate 32 in parallel with the base plate 32.
[0048]
Eight shafts 44 are fixed to the movable plate 42 at equal intervals in the circumferential direction.
[0049]
The shaft 44 is slidably inserted into the long hole 40 of the link 36 described above.
[0050]
An air cylinder 46 is swingably supported on the shafts 34 of the three protruding portions 32A.
[0051]
A bearing 48 is attached to the tip of the cylinder rod 46 </ b> A of the air cylinder 46.
[0052]
A shaft 50 fixed to the movable plate 42 is rotatably inserted into the hole of the bearing 48.
[0053]
For this reason, as shown in FIG. 6, when the cylinder rod 46A protrudes, the movable plate 42 rotates in the direction of the arrow CW, the shaft 50 slides while pushing the hole wall of the long hole 40, and the link 36 of FIG. By rotating in the direction of the arrow OUT, the roller 38 side of the link 36 moves outward.
[0054]
On the other hand, as shown in FIG. 5, when the cylinder rod 46A is retracted, the movable plate 42 rotates in the direction of the arrow CCW, so the link 36 rotates in the direction of the arrow IN in FIG. 5, and the roller 38 side of the link 36 moves inward. To do.
[0055]
Regardless of the position of the link 36, the center of a virtual circle (shown by a two-dot chain line) 39 passing through each roller 38 coincides with the axis of the support shaft 26.
[0056]
As shown in FIG. 2, a motor 52 is attached to the column 24 of the inner surface gripping device 12, and a spur gear 54 is attached to the rotating shaft 52 </ b> A of the motor 52.
[0057]
The guide rail 22A is attached to a pedestal 56 installed on the floor 28, and a rack 58 is attached to the pedestal 56 in parallel with the guide rail 22A.
[0058]
A spur gear 54 meshes with the rack 58, and the inner surface gripping device 12 can be moved in a direction orthogonal to the axis 16 </ b> C of the tire molding drum 16 by rotating the spur gear 54 with the motor 52.
[0059]
The pedestal 56 is provided with a first stopper and a second stopper that come into contact with the support column 24.
[0060]
By the support 24 being in contact with the first stopper, the inner surface gripping device 12 is highly accurate (for example, at a position where the axis of the support shaft 26 coincides with the axis 16C of the tire molding drum 16 (first position of the present invention)). Stop within ± 2 mm in the radial direction with respect to the axis of the tire molding drum 16.
[0061]
On the other hand, when the support 24 comes into contact with the second stopper, the inner surface gripping device 12 can stop at a position away from the movement locus of the side surface gripping device 14 (second position of the present invention).
[0062]
Note that a linear encoder or the like may be provided on the base 56 to control the stop position of the inner surface gripping device 12.
(Side gripping device)
As shown in FIGS. 1 and 7, the side gripping device 14 is attached to a slide block 60B that is slidably supported by a guide rail 60A that constitutes a linear motion bearing 60, and is attached to an axis 16C of the tire molding drum 16. It is possible to move along.
[0063]
The side gripping device 14 includes a slide base plate 62 with a slide block 60B attached to the lower surface.
[0064]
As shown in FIG. 8, a pair of side plates 64 </ b> A and side plates 64 </ b> B that are parallel to each other are vertically provided on the slide base plate 62.
[0065]
As shown in FIGS. 7 and 8, the side plate 64A and the side plate 64B are formed with large-diameter round holes 66 through which the bead rings 142 to which the stiffeners 140 are attached can be inserted.
[0066]
The axis 66C of the round hole 66 of the side gripping device 14 coincides with the axis 16C of the tire molding drum 16, and is parallel to the axis 26C of the support shaft 26 of the inner surface gripping device 12 and has a height from the floor 28. Match.
[0067]
As shown in FIGS. 7, 9, and 10, eight first shafts 68 are provided at equal intervals in the circumferential direction between the side plate 64A and the side plate 64B so as to connect the side plate 64A and the side plate 64B. In addition, eight second shafts 70 are provided at equal intervals in the circumferential direction.
[0068]
These first shafts 68 are all set at the same distance from the axis 66C of the large-diameter round hole 66, and similarly, the distance from the axis 66C of the round hole 66 is also the same for these second shafts 70. All are set the same.
[0069]
The first shaft 68 and the second shaft 70 are rotatably supported by the side plate 64A and the side plate 64B via bearings 72, respectively.
[0070]
Further, a spline 68A is formed in the intermediate portion of the first shaft 68, and a spline 70A is formed in the intermediate portion of the second shaft 70.
[0071]
A first link 74 is disposed between the side plate 64A and the side plate 64B.
[0072]
The first link 74 has a deformed hole (not shown; a hole having a shape similar to the cross-sectional shape of the spline 68A) through which a portion where the spline 68A of the first shaft 68 is formed is inserted.
), And the first link 74 rotates integrally with the first shaft 68 around the first shaft 68.
[0073]
The first link 74 is formed with a stepped round hole 77 at the end protruding to the inner peripheral side of the side plate 64A and the side plate 64B.
[0074]
A connecting member 76 is stretched over a part of the outer periphery of the side plate 64A and the side plate 64B.
[0075]
A pair of struts 78 are fixed to the connecting member 76 on the outer peripheral side.
[0076]
An air cylinder 80 is disposed between the support posts 78.
[0077]
A shaft 82 is fixed to the side of the cylinder body 80 </ b> A of the air cylinder 80, and this shaft 82 is rotatably inserted into the round hole 84 of the support column 78.
[0078]
For this reason, the air cylinder 80 can swing around the shaft 82.
[0079]
A bearing 86 is attached to the tip of the cylinder rod 80B of the air cylinder 80.
[0080]
A portion of the first link 74 closest to the air cylinder 80 protrudes to the outer peripheral side of the side plate 64A and the side plate 64B, and a round hole 75 is formed at the end of the protruding portion.
[0081]
A shaft 88 is attached to the bearing 86, and this shaft 88 is rotatably inserted into the round hole 75 of the first link 74.
[0082]
Accordingly, by moving the cylinder rod 80 </ b> B, the first link 74 swings about the axis of the first shaft 68.
[0083]
A shaft 90 and a shaft 92 are fixed to the first link 74 at a substantially middle portion in the longitudinal direction.
[0084]
Here, the shaft 90 of the first link 74 is connected to the shaft 92 of the first link 74 adjacent to the arrow CW direction side via the connection link 94, and the adjacent first links 74 are all connected to each other. They are connected via a connecting link 94.
[0085]
Therefore, when the first link 74 connected to the air cylinder 80 is swung, the other first links 74 are swung in synchronization.
[0086]
A shaft 98 is rotatably supported in the round hole 77 of the first link 74 via a bearing 96.
[0087]
A clamping member 100 is provided on the round hole 77 side of the first link 74.
[0088]
The clamping member 100 includes a contact portion 100A that contacts the side surface of the bead ring 142 and a support portion 100B that is integrally attached to the contact portion 100A.
[0089]
The contact portion 100 </ b> A is curved in accordance with the shape of the bead ring 142.
[0090]
A round hole 102 is formed on the end side of the support part 100B, and the shaft 98 of the first link 74 is inserted into the round hole 102 and fixed.
[0091]
Therefore, the clamping member 100 can swing around the shaft 98.
[0092]
A shaft 104 is fixed to an intermediate portion of the support portion 100B.
[0093]
A first sub link 106 is swingably supported on the shaft 104.
[0094]
A deformed hole 106A similar in shape to the cross-sectional shape of the spline 70A of the second shaft 70 is formed at the end of the first sub link 106 opposite to the shaft 104 side. Two shafts 70 are inserted.
[0095]
Therefore, the first sub link 106 rotates integrally with the second shaft 70.
[0096]
An annular slide side plate 108 is disposed between the side plate 64 </ b> A and the first link 74.
[0097]
The slide side plate 108 is formed with a hole 110 through which a portion where the spline 68A of the first shaft 68 is formed and a hole 112 through which a portion where the spline 70A of the second shaft 70 is formed. ing.
[0098]
An air cylinder 114 is attached to the side surface of the first link 74.
[0099]
The piston rod 114 </ b> A of the air cylinder 114 is fixed to the slide side plate 108.
[0100]
Therefore, by moving the piston rod 114 </ b> A, the slide side plate 108 is moved in parallel with the direction in which the slide side plate 108 contacts and separates from the first link 74.
[0101]
On the side plate 64 </ b> A side of the slide side plate 108, a second link 116 is disposed in parallel with the first link 74.
[0102]
The hole 110 of the slide side plate 108 is rotatably supported by the slide side plate 108 via a bearing member 120.
[0103]
Accordingly, the second link 116 can move integrally with the slide side plate 108 while being rotatably supported by the slide side plate 108.
[0104]
The second link 116 is formed with a deformed hole 118 (not shown; a hole having a shape similar to the cross-sectional shape of the spline 70A) through which the portion where the spline 70A of the second shaft 70 is formed is inserted. The second link 116 is configured to rotate integrally with the second shaft 70 around the second shaft 70.
[0105]
The second link 116 is formed with a stepped round hole 119 at the end opposite to the second shaft 70 side.
[0106]
A shaft 98 is rotatably supported in the round hole 119 of the second link 116 via a bearing 96.
[0107]
The clamping member 100 is provided on the round hole 119 side of the second link 116, and the shaft 98 of the second link 116 is inserted and fixed in the round hole 102 of the clamping member 100.
[0108]
Therefore, the clamping member 100 of the second link 116 can also swing around the shaft 98.
[0109]
A shaft 122 is fixed to an intermediate portion of the support portion 100 </ b> B of the holding member 100 of the second link 116.
[0110]
A second sub link 124 is swingably supported on the shaft 122.
[0111]
A deformed hole 124A having a shape similar to the cross-sectional shape of the spline 70A of the second shaft 70 is formed at the end of the second sublink 124 opposite to the shaft 122 side. Two shafts 70 are inserted.
[0112]
For this reason, the second sub link 124 rotates integrally with the second shaft 70.
[0113]
As shown in FIG. 7, a motor 126 is attached to the slide base plate 62, and a spur gear 128 is attached to the rotating shaft of the motor 126.
[0114]
The guide rail 60A is attached to a pedestal 130 installed on the floor 28, and a rack 132 is attached to the pedestal 130 in parallel with the guide rail 60A.
[0115]
A spur gear 128 meshes with the rack 132, and the side gripping device 14 can be moved along the axis 16 </ b> C of the tire molding drum 16 by rotating the spur gear 128 with the motor 126.
[0116]
The side gripping device 14 configured as described above can move in the direction in which the second link 116 is brought into contact with and separated from the first link 74 by driving the air cylinder 114, and thereby a plurality of second gripping devices 14 can be moved. The bead ring 142 can be held between the holding member 100 of the first link 74 and the holding member 100 of the second link 116.
[0117]
Further, by driving the air cylinder 80, the clamping member 100 can be freely moved substantially in the radial direction between a position indicated by a solid line and a retracted position indicated by a two-dot chain line in FIG.
[0118]
As a result, the side surface gripping device 14 of the present embodiment can sandwich a plurality of types of bead rings 142 having different diameters without exchanging components.
[0119]
As shown in FIG. 7, the slide base plate 62 is provided with a stopper device 146 that limits the swing angle of the first link 74.
[0120]
In the stopper device 146, a shaft 148 and a feed screw 150 arranged horizontally are supported by a bearing 152. The feed screw 150 is rotated by a motor 154.
[0121]
A nut 156 is screwed into an intermediate portion of the feed screw 150.
[0122]
A hole is formed in the nut 156, and a shaft 148 passes through the hole so as to be slidable. Therefore, when the feed screw 150 is rotated, the nut 156 moves while being guided by the shaft 148.
[0123]
The first link 74 located at the lowermost side of the side gripping device 14 is formed with a protrusion 158 that contacts the side surface of the nut 156. By adjusting the position where the nut 156 and the protrusion 158 contact, The swing angle of the first link 74, that is, the stop position (on the axis 66C side) of the clamping member 100 can be adjusted.
[0124]
Therefore, the stop position of the clamping member 100 can be easily changed and adjusted according to the diameter of the bead ring 142.
[0125]
Each air cylinder is connected to an air compressor via a valve, a pressure regulating valve and the like.
[0126]
(Function)
Next, a process of setting the bead ring 142 on the tire constituent member 144 (the inner liner, the carcass ply and other tire constituent members, see FIG. 1) wound around the tire molding drum 16 will be described.
(1) First, the bead ring 142 stored in a bead truck (not shown) is conveyed to the inner surface gripping device 12 using a crane or the like.
[0127]
As shown in FIG. 5, the inner surface gripping device 12 moves the roller 38 of the link 36 inward in advance, and retracts from the movement locus of the side gripping device 14 (shown by a solid line in FIG. 1). It is arranged at the second position of the present invention.
(2) The bead ring 142 is disposed outside the roller 38 and the link 36 is swung to move the roller 38 outward.
[0128]
As shown in FIGS. 3 and 11, each roller 38 comes into contact with the inner peripheral surface of the bead ring 142, and the center of the bead ring 142 coincides with the axis 26 </ b> C of the support shaft 26 of the inner surface gripping device 12.
[0129]
In this way, the bead ring 142 is held by the two inner surface grip portions 30.
[0130]
By holding the bead ring 142 on the inner surface gripping device 12, the height of the axis of the bead ring 142 can be matched with the height of the axis 16C of the tire molding drum 16.
(3) As shown by a two-dot chain line in FIG. 1, the inner surface gripping device 12 is moved in the direction opposite to the arrow B direction, and the axis 26C of the support shaft 26 of the inner surface gripping device 12 is replaced with the axis 66C of the side surface gripping device 14. (First position of the present invention).
(4) The side surface gripping device 14 is moved to the inner surface gripping device 12 side, and the bead ring 142 is positioned outside the sandwiching member 100 and the sandwiching member 100 facing each other.
(5) The air cylinder 80 is driven to move the clamping member 100 inward, and the contact portions 100 </ b> A are disposed on both sides of the bead ring 142.
(6) The air cylinder 114 is driven to bring the pair of sandwiching members 100 closer to each other, and the bead ring 142 is sandwiched by both contact portions 100A (see FIGS. 12 and 13).
(7) The link 36 of the inner surface gripping device 12 is swung to move the roller 38 inward, and the roller 38 is separated from the bead ring 142.
[0131]
As a result, the bead ring 142 is transferred to the side gripping device 14.
(8) The side gripping device 14 holding the bead ring 142 is moved in the direction of arrow R to move away from the inner surface gripping device 12, and then the inner surface gripping device 12 is returned to the original position (second position of the present invention).
(9) As shown in FIG. 14, the side gripping device 14 is moved to the tire molding drum 16 side to stop the bead ring 142 when the tire constituent member 144 is attached. As shown in FIG. 15, the tire constituent member 144 is The bead ring 142 is fixed by expanding the diameter and bringing the tire constituent member 144 into contact with the inner peripheral surface of the bead ring 142.
(10) The clamping member 100 is moved away from the bead ring 142, the clamping member 100 is moved outward, and the side gripping device 14 is moved in the arrow R direction to move away from the tire molding drum 16.
[0132]
Thereby, the conveyance process of the bead ring 142 is complete | finished.
[0133]
In the side gripping device 14 of the present embodiment, the bead ring 142 is clamped using the force of the air cylinder 114, so that even if the bead ring 142 has a large diameter and a heavy weight (for example, 305 kg), it is securely clamped. be able to.
[0134]
In the side surface gripping device 14 of the present embodiment, since the clamping member 100 is brought into contact with the side surface of the bead ring 142, the bead ring 142 to which the stiffener 140 is attached can be clamped on the outer peripheral surface.
[0135]
Further, in the side gripping device 14 of the present embodiment, the position (radial direction) of the clamping member 100 can be changed by driving the air cylinder 80. Therefore, the side gripping device 14 clamps the bead rings 142 of various diameters. I can do it.
[0136]
Further, in the side surface gripping device 14 of the present embodiment, the clamping member 100 can be moved in the radial direction according to the bead ring 142 of various diameters, but the curved contact portion 100A of the clamping member 100 is substantially beaded. The center-to-center distance between the first shaft 68 and the shaft 98, the center-to-center distance between the second shaft 70 and the shaft 122 (and 104), and the first shaft 68 so as to be disposed along the curvature of the ring 142. And the center distance between the second shaft 70 and the center distance between the shaft 98 and the shaft 122 (and 104). Specifically, the center-to-center distance between the first shaft 68 and the shaft 98 is slightly longer than the center-to-center distance between the second shaft 70 and the shaft 122, and the first shaft 68 and the second shaft 70 Is formed slightly longer than the center-to-center distance between the shaft 98 and the shaft 122 (that is, it is not a complete parallelogram link).
[0137]
Further, the surface accuracy of the bead ring 142 is reliably obtained by arranging the positions of the clamping member 100 attached to the first link 74 and not moving in the width direction on the same plane perpendicular to the axis 26C. I can do it.
[0138]
Since the bead ring 142 is held by the inner surface gripping device 12 and then held by the holding member 100, the axis of the bead ring 142 and the axis 16 </ b> C of the tire molding drum 16 coincide with each other. Can be accurately transported to the mounting position.
[0139]
Thereby, the pneumatic tire excellent in RRO (radial force variation) can be manufactured.
[0140]
【The invention's effect】
As described above, according to the bead ring transport device and the bead ring transport method of the present invention, the tire can be reliably held even if the bead ring has a heavy weight and a different size without replacing parts. It has an excellent effect that the bead ring can be conveyed to the tire molding drum by making the axis of the molding drum coincide with the axis of the bead ring.
[Brief description of the drawings]
FIG. 1 is a plan view showing a schematic configuration of a bead ring transport device according to an embodiment of the present invention.
FIG. 2 is a side view of the inner surface gripping device.
FIG. 3 is a cross-sectional view of an inner surface gripping portion.
FIG. 4 is a front view of an inner surface gripping portion.
FIG. 5 is a rear view of the inner surface gripping portion.
FIG. 6 is a rear view of the inner surface grip portion showing a state where the roller is moved outward.
FIG. 7 is a partial cross-sectional view of the side gripping device viewed from the front side.
FIG. 8 is a longitudinal sectional view along the axis of the side gripping device.
FIG. 9 is a cross-sectional view of a main part of the side gripping device.
FIG. 10 is a cross-sectional view of a main part of the side gripping device.
FIG. 11 is a schematic front view of an inner gripping part holding a bead ring.
FIG. 12 is a longitudinal sectional view along the axis of the inner gripping device and the side gripping device showing a state in which the side surface of the bead ring held by the inner gripping device is gripped by the side gripping device.
FIG. 13 is a cross-sectional view of the inner gripping device and the side gripping device viewed from the front side showing a state in which the side surface of the bead ring held by the inner gripping device is gripped by the side gripping device.
FIG. 14 is a side view of the side gripping device and the tire molding drum showing a state in which the side gripping device gripping the bead ring is stopped at the mounting position of the tire constituent member.
FIG. 15 is an explanatory view showing a state in which a bead ring is attached to a tire constituent member.
[Explanation of symbols]
10 Bead ring conveyor
12 Internal gripping device
14 Side gripping device
24 strut (second moving member)
32 Base plate (third drive means)
34 axis (third drive means)
36 link (third drive means)
38 Roller (Inner surface holding member)
42 Movable plate (third drive means)
44 shaft (third drive means)
46 Air cylinder (third drive means)
48 Bearing (third drive means)
62 Slide base plate (first moving member)
64A side plate (first moving member)
64B side plate (first moving member)
68 1st axis | shaft (1st drive means)
70 Second shaft (first driving means)
74 1st link (1st drive means)
80 Air cylinder (first driving means)
86 Bearing (first driving means)
88 shafts (first driving means)
90 axis (first driving means)
92 shaft (first driving means)
94 Connecting link (first driving means)
98 shaft (first driving means)
100 clamping member (clamping means)
104 axis (first driving means)
106 1st sublink (1st drive means)
108 Slide side plate (first driving means)
114 Air cylinder (second driving means)
116 Second link (first driving means)
120 Bearing member (first driving means)
122 shaft (first driving means)
124 Second sub-link (first driving means)

Claims (3)

A bead ring conveying device for conveying a bead ring to a tire molding drum,
An inner gripping device that can hold the bead ring from the inner surface side, and a side gripping device that can hold the bead ring from both sides in the axial direction,
The side gripping device is provided in the first moving member that is movable along the axis of the tire molding drum, clamping means that can clamp the bead ring from both side surfaces, and the first moving member, The holding means is held so as to be movable in a substantially radial direction around a first axis provided coaxially with the axis of the tire molding drum, and the distance of each holding means measured from the first axis is the same. First driving means for moving the holding means synchronously so that the holding means moves, and second driving means for moving the holding means in the width direction of the bead ring to hold the bead ring. And
The inner gripping device includes a second moving member that is movable in a direction intersecting with the axis of the tire molding drum, a plurality of inner surface holding members that can be in contact with the inner peripheral surface of the bead ring, and the second gripping device. Provided on the moving member, the inner surface holding means is held so as to be movable in a substantially radial direction around the second axis, and the radial distances of the inner surface holding members measured from the second axis are the same. And a third driving means for moving each inner surface holding member synchronously so that
The inner gripping device includes a first position where the second axis is disposed on an extension line of the first axis of the side gripping device, and a second position away from the movement locus of the side gripping device. Can be moved between,
A bead ring conveying device. 2. The bead ring transport device according to claim 1, wherein the second driving unit includes an air cylinder that moves the clamping unit in a width direction of the bead ring. 3. A first step of holding the bead ring from the inner peripheral surface side so that the axis of the bead ring is located on an extension of the axis of the tire molding drum;
A second step of receiving the bead ring held from the inner peripheral surface side from both sides in the width direction;
A third step of inserting the bead ring sandwiched from both sides in the width direction along the axis of the tire molding drum and inserting it from one end of the tire molding drum;
A fourth step of releasing the bead ring at a predetermined position of the tire constituent member disposed on the tire molding drum, and setting the bead ring on the tire constituent member;
A method for conveying a bead ring, comprising:

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