JP5622545B2 - Tire component supply device, unvulcanized tire manufacturing apparatus, and unvulcanized tire manufacturing method - Google Patents

Description

  The present invention relates to a tire component supply device, an unvulcanized tire manufacturing apparatus, and an unvulcanized tire manufacturing method for supplying a belt-shaped tire component to a drum that is rotatably supported.

2. Description of the Related Art Conventionally, for example, a configuration as shown in Patent Document 1 below is known as a supply device for this type of tire constituent member. The supply device is capable of abutting the supply conveyor for transporting the tire component, the swinging means for moving the supply conveyor up and down to the upper and lower sticking positions of the drum, and the front end of the tire component at the drum sticking position. And a moving means for sliding so that
When the tire component is supplied to the drum by the tire component supply device, the supply conveyor is swung upward or downward by the swinging means and stopped at a predetermined position, and then the supply conveyor is slid by the moving means. The front end of the tire component is made to reach the upper or lower sticking position of the drum, and the front end is brought into contact with the surface of the drum. Then, the drum is rotated in the same direction as the feeding direction of the tire constituent member, and the tire constituent member is wound around the drum.

JP 2003-62916 A

  However, in the conventional tire component supply device, the size of the tire formed by the drum is changed, for example, the drum is changed to increase or decrease the outer diameter. When the sticking position of the tire is changed, it is difficult to reach the front end portion of the tire constituent member at the sticking position, and there is a problem that it is difficult to cope with a wide range of size switching.

  This invention is made | formed in view of the situation mentioned above, The objective is to provide the supply apparatus of the tire structural member which can respond to size switching of a wide range.

In order to solve the above problems, the present invention proposes the following means.
The tire component supply device according to the present invention is a tire component supply device that supplies a belt-shaped tire component to a drum that is rotatably supported, and a conveyor for conveying the tire component to the drum. A forward / backward mechanism for moving the transport conveyor in a horizontal direction with respect to the drum; and a front end of the transport conveyor by swinging the transport conveyor about a swing shaft extending in the rotation axis direction of the drum. comprising a swinging mechanism for advancing and retracting the vertical direction part to the outer peripheral surface of the drum, and in Rukoto said conveyor is connected to the forward and reverse mechanism through the swing mechanism, the advancing and retracting mechanism wherein The position of the oscillating shaft advances and retreats with respect to the drum when the conveyance conveyor is advanced and retracted .

  In this invention, when supplying a tire structural member to a drum, first, a tire structural member is conveyed with a conveyance conveyor, and the front-end part of a tire structural member is located in the front-end part of a conveyance conveyor. Further, the advancing / retreating mechanism moves the transport conveyor forward and backward with respect to the drum, and the swinging mechanism swings the transport conveyor around the swinging shaft so that the front end portion of the transporting conveyor moves closer to the outer peripheral surface side of the drum. And while rotating a drum, a tire structural member is wound around the outer peripheral surface side of a drum by supplying a tire structural member from the front-end part of a conveyance conveyor to this drum.

  Here, since the conveyor is connected to the advance / retreat mechanism via the swing mechanism, the position of the swing shaft can be advanced / retracted with respect to the drum by advancing / retreating the transport conveyor by the advance / retreat mechanism. Therefore, when supplying the tire component from the front end portion of the transport conveyor to the drum, by operating the advance / retreat mechanism and the swing mechanism, the front end portion of the transport conveyor relative to the drum can be operated regardless of the outer diameter of the drum. A position and the angle of the front-end part of a conveyance conveyor with respect to the outer peripheral surface side of a drum can be variously changed. This makes it possible to supply tire constituent members from a predetermined angle to a predetermined position on the outer peripheral surface side of various drums having different outer diameters, and can cope with a wide range of size switching. .

  Moreover, the said conveyance conveyor may be provided with the conveyor belt which conveys the said tire structural member supplied on the surface, and the elastic body arrange | positioned by the back surface side in the front-end part of this conveyor belt.

In this case, since the conveyor belt conveys the tire component supplied on the surface, the tire component easily adheres to the surface of the conveyor belt at the time of conveyance for conveying the tire component, and the tire component meanders. Can be regulated.
Thereafter, when supplying the tire constituent member to the drum, first, the advance / retreat mechanism and the swing mechanism are operated, and the front end portion of the tire constituent member is pressed against the outer peripheral surface side of the drum by the front end portion of the conveyor belt. And while maintaining the state which pressed the tire structural member to the outer peripheral surface side of the drum with the front-end part of the conveyor belt, a tire structural member is supplied to this drum, rotating a drum. As a result, the tire constituent member can be transferred from the conveyor to the outer peripheral surface side of the drum while being positioned on the surface of the conveyor belt, and the tire constituent member can be prevented from meandering during supply. it can.
By the above, it can control that a tire constituent member meanders from the time of conveyance to the time of supply.

  Further, since the elastic body is disposed on the back side of the front end portion of the conveyor belt, as described above, even if the tire constituent member is pressed against the outer peripheral surface side of the drum by the front end portion of the conveyor belt, the elastic body is not By deforming following the outer surface of the tire constituent member, the tire constituent member can be prevented from being crushed and deformed.

  As described above, since the tire constituent member can be prevented from meandering from the time of conveyance to the time of supply and the tire constituent member can be prevented from being crushed and deformed, the shape is maintained with high accuracy. Tire components can be supplied to the drum. Therefore, it is possible to improve the setting accuracy of the tire constituent member wound around the drum.

  In addition, for example, when the tire constituent member has a configuration in which a plurality of belt-like members having different shrinkage rates are bonded together, the tire constituent members meander due to the difference in shrinkage rate, and the shape is likely to change. The effect will be remarkably achieved.

  In addition, in the top view of the tire component supply device, a plurality of the conveyers are arranged in a direction intersecting the direction in which the conveyer conveys the tire component, and the interval between the plurality of conveyers is: It may be adjustable by an interval adjusting mechanism.

In this case, since a plurality of conveyors are arranged, a plurality of tire constituent members can be supplied simultaneously.
In addition, since the interval between the plurality of conveyors can be adjusted by the interval adjusting mechanism, when supplying the plurality of tire components to the outer peripheral surface side of the drum, the interval between the plurality of tire components is determined by the size of the tire. It can be different depending on. Thereby, even if it is a case where a several tire structural member is affixed simultaneously, it can respond | correspond reliably to size switching of a wide range.

  The unvulcanized tire manufacturing apparatus according to the present invention includes a drum that is rotatably supported and a supply device for the tire constituent member, and the tire constituent member is attached to the drum while rotating the drum. The tire constituent member is wound around the outer peripheral surface of the drum to form an unvulcanized tire.

  According to this invention, since the tire component supply device is provided, tires having a wide range of sizes can be manufactured.

  Further, in the method for producing an unvulcanized tire according to the present invention, a belt-shaped tire component is supplied to the drum while rotating the drum that is rotatably supported. An unvulcanized tire manufacturing method for forming an unvulcanized tire by wrapping around a surface, wherein the unvulcanized tire is formed using the unvulcanized tire manufacturing apparatus.

  According to this invention, since the unvulcanized tire is formed using the unvulcanized tire manufacturing apparatus, tires in a wide range of sizes can be manufactured.

  According to the present invention, it is possible to cope with a wide range of size switching.

It is a side view of the manufacturing apparatus of the unvulcanized tire which concerns on one Embodiment of this invention. It is a top view of the manufacturing apparatus of the unvulcanized tire shown in FIG. It is a side view explaining operation | movement of the rocking | fluctuation mechanism in the manufacturing apparatus of the unvulcanized tire shown in FIG.

Hereinafter, an unvulcanized tire manufacturing apparatus according to an embodiment of the present invention will be described with reference to the drawings.
As shown in FIG. 1, an unvulcanized tire manufacturing apparatus 1 includes a molding drum (drum) 2 that is rotatably supported, and a tire component that supplies a belt-shaped tire component M to the molding drum 2. The apparatus 10 is provided. The unvulcanized tire manufacturing apparatus 1 supplies the tire constituent member M to the molding drum 2 while rotating the molding drum 2, thereby moving the tire constituent member M to the outer peripheral surface 2 a side of the molding drum 2. Winding to form an unvulcanized tire.

  The tire component supply device 10 includes a conveyor 11 that conveys the tire component M to the molding drum 2, an advancing / retracting mechanism 12 that moves the conveyor 11 in the horizontal direction with respect to the molding drum 2, and a molding drum 2. The front end portion 11a of the conveyor 11 is moved forward and backward in the vertical direction with respect to the outer peripheral surface 2a side of the molding drum 2 by swinging the conveyor 11 around the swing axis L2 extending in the left-right direction where the rotation axis L1 extends. And a swing mechanism 13 to be moved. In the present embodiment, the rotation axis L1 and the swing axis L2 are parallel to each other.

  As shown in FIG. 2, two (plural) conveyor conveyors 11 are arranged in the left-right direction, and each conveyor conveyor 11 is front and rear orthogonal to the left-right direction in the top view of the tire component supply device 10. The tire constituent member M is conveyed in the direction.

Each conveyor 11 extends between the pair of conveyor frames 14 extending in the front-rear direction and spaced in the left-right direction, and between the front end portions 14a and the rear end portions of the pair of conveyor frames 14. Separately disposed front pulley 15 and rear pulley 16, a conveyor belt 17 that is wound between these pulleys 15, 16 and conveys the tire component M supplied on the surface 17 b, and the conveyor belt 17 And an elastic roller (elastic body) 18 disposed on the back surface 17c side of the front end portion 17a.
The surface 17b of the conveyor belt 17 is formed smoothly, and the tire constituent member M can be in close contact with the surface 17b.

The elastic roller 18 is rotatably disposed in a portion located behind the front pulley 15 between the front end portions 14a of the pair of conveyor frames 14, and is formed by a sponge member, for example. Yes.
In addition, on the upper surface of each of the front end portions 14a of the pair of conveyor frames 14 to which both ends of the elastic roller 18 are connected, a concave curved entry recess 19 into which the outer peripheral surface 2a side of the molding drum 2 can enter. Is formed.

Moreover, each conveyance conveyor 11 is arrange | positioned inside the bracket 20 formed in the U shape opened upwards by the front view seen from the front-back direction. The bracket 20 is connected to the center in the front-rear direction of each conveyor frame 14 of the transport conveyor 11 from the outside in the left-right direction.
In addition, the interval between the two conveyors 11 can be adjusted by the interval adjusting mechanism 21. In this embodiment, the interval adjusting mechanism 21 moves the two conveyors 11 in the left-right direction via the bracket 20. Slide along each one along.

Further, as shown in FIG. 1, both transport conveyors 11 are supported by a swing mechanism 13 so as to be swingable. The swing mechanism 13 has a top U-shaped support frame 22 whose top plate supports the bracket 20 and the distance adjustment mechanism 21 from below, and a side plate of the support frame 22 that extends in the left-right direction and has both side ends. A shaft member 23 connected to the base portion, a base portion 24 that rotatably supports the shaft member 23, a telescopic means 25 that can extend and contract in the front-rear direction, whose front end portion is rotatably supported by the base portion 24, and telescopic A link member 26 provided between the rear end portion of the means 25 and the shaft member 23.
The expansion / contraction means 25 is constituted by, for example, a ball jack or the like, and is disposed in a space between the support frame 22 and the base portion 24.

  Here, the swing mechanism 13 swings the transport conveyor 11 about the swing axis L <b> 2, which is the central axis of the shaft member 23, as the expansion / contraction means 25 expands and contracts. In the present embodiment, in the state in which the expansion / contraction means 25 is most contracted, the conveyor 11 is gradually inclined downward from the rear toward the front. As shown in FIG. 3, when the expansion / contraction means 25 is extended, a rotational force is applied from the expansion / contraction means 25 to the shaft member 23 via the link member 26, so that the transport conveyor 11 swings around the swing axis L2. Be made. In addition, in the state which the expansion-contraction means 25 extended most, the conveyance conveyor 11 will incline toward the upper part gradually as it goes to the front from back.

  In this embodiment, the conveyor 11 is connected to the advance / retreat mechanism 12 via the swing mechanism 13. In the illustrated example, the advance / retreat mechanism 12 supports the base portion 24 of the swing mechanism 13 so as to be able to advance and retreat in the front-rear direction, and in the top view, in the direction in which the conveyor 11 conveys the tire constituent member M, The direction in which the mechanism 12 moves the conveyor 11 forward and backward coincides.

Next, the manufacturing method of the unvulcanized tire which manufactures an unvulcanized tire using the manufacturing apparatus 1 of the unvulcanized tire comprised as mentioned above is demonstrated.
Before the tire constituent member M is wound around the outer peripheral surface 2 a side of the molding drum 2, a cylindrical member that constitutes a part of the unvulcanized tire may be pre-packaged on the molding drum 2.

  First, as shown in FIG. 1, after two tire constituent members M are separately supplied onto the surface 17b of the conveyor belt 17 of the two conveyors 11, each conveyor belt 17 is moved to the front pulley 15 by a conveyor drive unit (not shown). And it is made to drive between the rear pulleys 16, and the tire structural member M is conveyed from back to front. At this time, the tire component M is conveyed forward until the front end M1 of the tire component M reaches the front end 11a of the conveyor 11.

  Further, the interval adjusting mechanism 21 adjusts the intervals between the plurality of tire constituent members M according to the tire size, and the advance / retreat mechanism 12 advances and retracts the conveyor 11 with respect to the molding drum 2, and the swing mechanism 13 The transport conveyor 11 is swung around the swing axis L2, and the front end portion 11a of the transport conveyor 11 is moved closer to the outer peripheral surface 2a side of the molding drum 2.

  At this time, the front end portion M1 of the tire constituent member M is formed by the front end portion 17a of the conveyor belt 17 in a state where the front end portion M1 of the tire constituent member M is positioned on the surface 17b of the front end portion 17a of the conveyor belt 17. 2 is pressed against the outer peripheral surface 2a side from below. Then, the outer peripheral surface 2 a side of the molding drum 2 enters the entry recess 19 formed in the front end portion 14 a of the conveyor frame 14, and the elastic roller 18 disposed on the back surface 17 c side of the front end portion 17 a of the conveyor belt 17. However, it deforms following the outer surface of the tire component M.

  And while maintaining the state which pressed the tire structural member M against the outer peripheral surface 2a side of the molding drum 2 by the front end portion 17a of the conveyor belt 17, the molding drum 2 is rotated while the molding drum 2 is rotated. By supplying the tire constituent member M from the front end portion 11a, the tire constituent member M is wound around the outer peripheral surface 2a side of the molding drum 2. As a result, the tire constituent member M is delivered from the conveyor 11 to the outer peripheral surface 2a side of the molding drum 2 while being positioned on the surface 17b of the conveyor belt 17.

At this time, the conveyor speeds of the respective conveyors 11 may be made different from each other depending on, for example, the adhesion of the tire constituent members M conveyed by the respective conveyors 11 to the conveyor belt 17.
Thereafter, a non-vulcanized tire is formed by performing a post-process such as combining other tire constituent members M (not shown).

  As described above, according to the tire component supply device 10 according to the present embodiment, the transport conveyor 11 is connected to the advance / retreat mechanism 12 via the swing mechanism 13, and therefore, the transport conveyor is moved by the advance / retreat mechanism 12. By moving 11 forward and backward, the position of the swing shaft L <b> 2 can be advanced and retracted relative to the molding drum 2. Therefore, when the tire constituent member M is supplied to the molding drum 2 from the front end portion 11a of the transport conveyor 11, the advance / retreat mechanism 12 and the swing mechanism 13 are operated, regardless of the outer diameter of the molding drum 2. The position of the front end portion 11a of the conveyor 11 with respect to the molding drum 2 and the angle of the front end portion 11a of the conveyor 11 with respect to the outer peripheral surface 2a side of the molding drum 2 can be variously changed. As a result, it is possible to supply the tire component member M from a predetermined angle to a predetermined position on the outer peripheral surface 2a side with respect to various molding drums 2 having different outer diameters, and supports a wide range of size switching. can do.

In addition, since a plurality of transfer conveyors 11 are arranged, a plurality of tire constituent members M can be supplied simultaneously.
Furthermore, since the interval between the plurality of conveyors 11 can be adjusted by the interval adjusting mechanism 21, when the plurality of tire constituent members M are supplied to the outer peripheral surface 2 a side of the molding drum 2, the plurality of tire constituent members M are connected to each other. The interval can be varied depending on the tire size. Thereby, even if it is a case where the some tire structural member M is affixed simultaneously, it can respond | correspond reliably to size switching of a wide range.

Further, since the conveyor belt 17 conveys the tire constituent member M supplied on the surface 17b, the tire constituent member M easily adheres to the surface 17b of the conveyor belt 17 during the conveyance of the tire constituent member M, and the tire The meandering of the component member M can be restricted.
After that, when supplying the tire constituent member M to the molding drum 2, by passing the tire constituent member M to the outer peripheral surface 2a side of the molding drum 2 while being positioned on the surface 17b of the conveyor belt 17, The meandering of the tire constituent member M can be restricted.
As described above, it is possible to regulate the meandering of the tire constituent member M from the conveyance time to the supply time.

  Further, since the elastic roller 18 is disposed on the back surface 17c side of the front end portion 17a of the conveyor belt 17, as described above, the tire constituent member M is attached to the outer peripheral surface 2a of the molding drum 2 by the front end portion 17a of the conveyor belt 17. Even if the elastic roller 18 is pressed to the side, the elastic roller 18 is deformed following the outer surface of the tire constituent member M, whereby the tire constituent member M can be prevented from being crushed and deformed.

  As described above, since the tire constituent member M can be prevented from meandering from the time of conveyance to the time of supply and the tire constituent member M can be prevented from being crushed and deformed, the shape can be maintained with high accuracy. The formed tire constituent member M can be supplied to the molding drum 2. Therefore, the setting accuracy of the tire constituent member M wound around the molding drum 2 can be improved.

  In addition, for example, when the tire constituent member M is formed by laminating a plurality of strip-like members having different shrinkage rates, the tire constituent member M meanders due to the difference in shrinkage rates, and the shape is likely to change. The effect will be remarkably achieved.

Moreover, according to the unvulcanized tire manufacturing apparatus 1 according to the present embodiment, since the tire component supply device 10 is provided, tires having a wide range of sizes can be manufactured.
Furthermore, according to the method for manufacturing an unvulcanized tire according to the present embodiment, since the unvulcanized tire is formed using the unvulcanized tire manufacturing apparatus 1, tires having a wide range of sizes can be manufactured. it can.

The technical scope of the present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.
For example, the interval adjusting mechanism 21 may not be provided. Moreover, the conveyance conveyor 11 may be one and may be three or more. Furthermore, in the said embodiment, although the two conveyance conveyors 11 shall be arrange | positioned in the left-right direction, it is not restricted to this, The direction in which the conveyance conveyor 11 conveys the tire structural member M in the said top view It suffices if a plurality are arranged in the direction intersecting with.

Moreover, in the said embodiment, in the said top view, although the direction in which the conveyance conveyor 11 conveys the tire structural member M and the direction in which the advancing / retreating mechanism 12 advances / retreats the conveyance conveyor 11 correspond, it differs. May be.
In the above embodiment, the rotation axis L1 and the swing axis L2 are parallel to each other. However, the present invention is not limited to this.

In the above-described embodiment, the tire constituent member M is supplied to the molding drum 2 while maintaining the state where the tire constituent member M is pressed against the outer peripheral surface 2 a side of the molding drum 2 by the front end portion 17 a of the conveyor belt 17. However, it is not restricted to this, You may supply without pressing the tire structural member M. FIG.
For example, the tire constituent member M is transported forward until the front end portion M1 of the tire constituent member M projects forward from the front end portion 11a of the transport conveyor 11, and the forward / backward moving mechanism 12 and the swing mechanism 13 are operated and transported. The front end portion 11a of the conveyor 11 is made to approach the molding drum 2 from above, and then the front end portion M1 of the tire constituent member M is attached to the outer peripheral surface 2a side of the molding drum 2, and then the tire constituent member M is attached to the molding drum 2. It may be wound.

Further, the advance / retreat mechanism 12 is not limited to that shown in the above embodiment, and can be appropriately changed as long as the transport conveyor 11 is advanced / retracted with respect to the drum via the swing mechanism 13.
The swing mechanism 13 is not limited to that shown in the above embodiment, and may be changed as long as it can swing the conveyor 11 around the swing axis L2 extending in the direction of the rotation axis L1 of the drum 2. It is possible.

  Furthermore, the conveyor 11 is not limited to that shown in the embodiment, and can be appropriately changed as long as it conveys the tire constituent member M to the drum 2. For example, the elastic roller 18 may be replaced with a non-rotatable elastic body. Further, the conveyor belt 17 may be a steel conveyor. Further, the conveyor 11 may include a plurality of rollers, and the tire constituent member M may be conveyed on these rollers.

  In addition, it is possible to appropriately replace the constituent elements in the embodiment with known constituent elements without departing from the spirit of the present invention, and the above-described modified examples may be appropriately combined.

DESCRIPTION OF SYMBOLS 1 Unvulcanized tire manufacturing apparatus 2 Drum 2a Outer peripheral surface 10 Tire component supply device 11 Conveyor 11a Conveyor front end 12 Advance / retract mechanism 13 Oscillating mechanism 17 Conveyor belt 17a Conveyor belt front end 17b Surface 17c Back surface 18 Elastic roller (elastic body)
21 Spacing adjustment mechanism L1 Rotating shaft L2 Oscillating shaft M Tire constituent member M1 Front end portion of tire constituent member

Claims (5)

A tire component supply device for supplying a belt-shaped tire component to a rotatably supported drum,
A transport conveyor for transporting the tire component to the drum;
An advancing and retreating mechanism for advancing and retracting the transport conveyor in a horizontal direction with respect to the drum;
An oscillating mechanism for causing the front end of the conveyor to advance and retreat in the vertical direction with respect to the outer peripheral surface of the drum by oscillating the conveyor about an oscillation axis extending in the rotation axis direction of the drum; With
Characterized in that at Rukoto said conveyor is connected to the forward and reverse mechanism through the swing mechanism, the position of the pivot shaft when the retractable mechanism advances and retracts said conveyor movable toward and away from the drum A tire component supply device. The tire component supply device according to claim 1,
The conveyance conveyor includes a conveyor belt that conveys the tire constituent member supplied on the surface, and an elastic body that is disposed on the back side of the front end portion of the conveyor belt. A component supply device. The tire component supply device according to claim 1 or 2,
A plurality of the transport conveyors are arranged in a direction intersecting the direction in which the transport conveyor transports the tire constituent member in a top view of the tire constituent member supply device,
An apparatus for supplying tire constituent members, wherein an interval between the plurality of conveyors can be adjusted by an interval adjusting mechanism. A drum rotatably supported;
A tire component supply device according to any one of claims 1 to 3,
An unvulcanized tire is formed by supplying the tire constituent member to the drum while rotating the drum, thereby winding the tire constituent member around the outer peripheral surface of the drum to form an unvulcanized tire. Manufacturing equipment. An unvulcanized tire that forms a non-vulcanized tire by wrapping the tire structural member around the outer peripheral surface of the drum by supplying a belt-shaped tire structural member to the drum while rotating the drum that is rotatably supported A tire manufacturing method comprising:
An unvulcanized tire is formed by using the unvulcanized tire manufacturing apparatus according to claim 4.

Images