WO2009101830A1

WO2009101830A1 - Tire manufacturing system, and tire manufacturing method

Info

Publication number: WO2009101830A1
Application number: PCT/JP2009/050335
Authority: WO
Inventors: Junichi Saito
Original assignee: Bridgestone Corporation
Priority date: 2008-02-12
Filing date: 2009-01-14
Publication date: 2009-08-20
Also published as: JP4979084B2; JP2009190183A

Abstract

This aims to save the space for and shorten the cycle time of a tire manufacturing system, which assembles the tire-constituting members sequentially on a molding at a plurality of working stations. A drive device (20) for supporting and driving a molding (H) is disposed on the turning table (32) of a turning device (30), and is turned on a center shaft (33) by the turning device (30). As a result, the molding (H) is turned and moved, while being held by the drive device (20), between a plurality of working stations (10) arranged therearound, and is sequentially arranged at the predetermined working station (10), so that the tire-constituting members are sequentially assembled by assembling devices (11). The individual means, which are connected to and with the drive devices (20) thereby to supply an electric power or air or to transmit drive powers, can be removably mounted on the drive device (20), so that their connections to and with the drive devices (20) are released at the turning time.

Description

Tire manufacturing system and tire manufacturing method

The present invention relates to a tire manufacturing system and a tire manufacturing method for manufacturing an unvulcanized tire (green tire) by sequentially assembling tire constituent members on a molded body at a plurality of work stations.

A pneumatic tire is generally composed of a plurality of tire constituent members made of unvulcanized rubber or the like, and is manufactured by molding an unvulcanized tire with each of the tire constituent members and then vulcanizing it. As an apparatus for manufacturing this unvulcanized tire, conventionally, a plurality of work stations for assembling tire constituent members to a molded body such as a rigid core are provided, and the molded body is sequentially moved to each of the predetermined tire constituent members. A tire manufacturing system that manufactures an unvulcanized tire by assembling in this order is known.

FIG. 7 is a plan view showing an example of a schematic configuration of such a conventional tire manufacturing system, and is a plan layout diagram schematically showing main parts of each device and the like constituting the system.
As shown in the figure, this conventional tire manufacturing system 100 includes a plurality of work stations 10 (three in the left-right direction in the figure) arranged in parallel, and molded bodies H (here, , A plurality of transfer robots 110 that move the rigid core). Each work station 10 has an assembly device 11 for assembling predetermined tire constituent members to the molded body H, and a drive device 20 for supporting the molded body H to rotate and drive one to one. Correspondingly installed.

Here, the assembling apparatus 11 is composed of an extruder or the like. For example, a ribbon-shaped rubber is extruded toward a body H to be rotated, and is laminated in a spiral manner along the outer surface thereof, and a tire having a predetermined shape. It is a processing apparatus of the tire structural member which forms and assembles a structural member. Therefore, the assembling apparatus 11 has various means for forming tire constituent members such as tread rubber, such as moving means of an extruder and ribbon rubber sticking means (not shown). The driving device 20 has a substantially cylindrical molding main shaft 21 which is attached to one end side (lower side in the drawing) and is attached concentrically and rotates integrally with the molding target H, and the other end side. (The upper side in the figure) is rotatably supported to hold the molding target H in a cantilevered manner, and includes a drive unit 22 that rotates the molding spindle 21 around the axis.

In this tire manufacturing system 100, each drive device 20 is arranged in the same direction (in the figure, the direction in which the molding main shaft 21 faces in the up-down direction), and the assembly device 11 is placed on the molding target H supported on one end side. Each work station 10 is configured to face each other. At the time of manufacturing the unvulcanized tire, the molded body H is gripped by the hand 112 at the tip of the arm 111 provided in the transport robot 110, transported to the work station 10 on one side (here, the right side), and the drive device 20 ( Attached to the tip of the molding spindle 21). Next, the grip of the hand 112 is released, and the molding unit 21 and the molded body H are rotated by being driven by the driving unit 22, and a predetermined tire constituent member is applied to the molded body H by the assembling apparatus 11 as described above. Assemble to. After that, the molded body H is removed from the driving device 20 by the transfer robot 110, the arm 111 is turned around the support column 113, the molded body H is attached to the adjacent driving device 20, and the tire constituent members are assembled in the same manner. .

As described above, the tire manufacturing system 100 moves the molding body H sequentially by the plurality of transfer robots 110 and delivers the uncured tire to each of the plurality of work stations 10 by sequentially assembling the respective tire constituent members. To manufacture. Therefore, in this tire manufacturing system 100, the number of the transfer robots 110 increases, and there is a problem that the space necessary for installing them increases according to the number of the work stations 10 and the transfer robots 110. At the same time, it takes a relatively long time to remove the molding target H from the driving device 20 and to transfer it between the work stations 10, and each time the molding target H is attached to the driving device 20, its positioning (positioning) and adjustment are performed. Therefore, the cycle time for producing the unvulcanized tire tends to be long.

On the other hand, conventionally, by moving the molding carriage that supports the object to be molded on an endless rail laid in an elliptical shape, and assembling each tire constituent member in order at a plurality of work stations arranged along the movement path, A so-called oval tire manufacturing system that addresses the above problems is also known (see Patent Document 1).

In this conventional tire manufacturing system, the molded object is supported by a single molding cart without passing each time, and in that state, the tire component is assembled by moving it between a plurality of work stations. Work such as removal and alignment is unnecessary. As a result, the time required for manufacturing the unvulcanized tire is shortened, and the cycle time can be shortened. However, in this tire manufacturing system, there is a tendency that the entire system becomes large, for example, a relatively large space is formed in a portion surrounded by endless rails, and further improvement is required from the viewpoint of space saving.

WO2004 / 048075

Also, as a similar tire manufacturing system, it is conceivable to use a turning table that rotates (turns) around an axis and arranges a plurality of work stations around it to reduce the installation space.

FIG. 8 is a schematic diagram showing an example of a schematic configuration of such a tire manufacturing system, and is a plan layout view showing each component of the system as a block or the like.
As shown in the figure, the tire manufacturing system 120 includes a turning table 121 having a substantially circular shape in plan view that rotates in the circumferential direction, and an operation including an assembling device and a driving device (not shown) along the periphery of the turning table 121. A plurality (eight here) of stations 10 are arranged at approximately equal intervals. Further, on the turning table 121, a molding target H and a guide (not shown) for guiding the movement of the molding target H to the work station 10 are provided, and the turning table 121 is rotated to surround the molding target H. Turn in the direction. Thus, the molding target H is swung between the plurality of work stations 10, and the tire constituent members are assembled to the molding target H at each work station 10.

As described above, in the tire manufacturing system 120 using the turning table 121, the turning table 121 side is covered due to limitations on transmission of driving force, supply of air, transmission of control signals, wiring for power supply, and the like. In general, only the molded body H and the guide are provided along the outer peripheral portion, and a driving device or the like is disposed on the outer side. For this reason, in the tire manufacturing system 120, the center side of the turntable 121 is not utilized, and a relatively large useless space (X region in the figure) is generated in the center, and the occupied space of the turntable 121 tends to increase. is there. Therefore, even in the tire manufacturing system 120, the effect of reducing the installation space of the entire system is not sufficient, and further space saving is required.

The present invention has been made in view of the above-described conventional problems, and an object of the present invention is to save a space of a tire manufacturing system that manufactures an unvulcanized tire by sequentially assembling tire constituent members on a molding object at a plurality of work stations. And to shorten the cycle time of manufacturing the unvulcanized tire.

The present invention includes a plurality of work stations for assembling a tire constituent member to a molded body supported by a driving device, and sequentially moving the molded body between the plurality of work stations to sequentially assemble the tire constituent members. A tire manufacturing system for manufacturing a vulcanized tire, wherein the driving device is installed, and a turning device that rotates around a shaft and turns a driving device that supports a workpiece, and is arranged so as to surround the turning driving device The plurality of work stations are provided, and the object to be molded supported by the drive device is swiveled between the plurality of work stations by a swivel device.
Further, the present invention provides a tire manufacturing method for manufacturing an unvulcanized tire by moving a molded body supported by a driving device between a plurality of work stations and sequentially assembling tire constituent members on the molded body at each work station. A step of turning a driving device supporting the molding body around an axis, and a molding device supported by the driving device between the plurality of work stations arranged so as to surround the turning driving device. A step of turning and a step of assembling a tire constituent member at each work station at the moving position to the turn-moved workpiece.

According to the present invention, it is possible to save space in a tire manufacturing system that manufactures an unvulcanized tire by sequentially assembling tire components on a molded body at a plurality of work stations. Cycle time can be shortened.

It is a top view which shows schematic structure of the tire manufacturing system of this embodiment. FIG. 2 is an FF arrow view of the tire manufacturing system shown in FIG. It is a principal part side view which extracts and shows typically a part of tire manufacturing system of this embodiment. It is a principal part side view which extracts and shows typically a part of tire manufacturing system of this embodiment. It is a flowchart which shows the procedure which manufactures an unvulcanized tire with the tire manufacturing system of this embodiment. It is a schematic diagram which shows schematic structure of the tire manufacturing system of a comparative example. It is a top view which shows the example of schematic structure of the conventional tire manufacturing system. It is a schematic diagram which shows the example of schematic structure of a tire manufacturing system.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Tire manufacturing system, 10 ... Work station, 11 ... Assembly apparatus, 20 ... Drive apparatus, 21 ... Molding spindle, 22 ... Drive part, 23 ... Ring gear , 30 ... turning device, 31 ... frame, 32 ... turning table, 33 ... center axis, 40 ... medium supply means, 41 ... connected portion, 42 ... plug, 43 ... pipe line, 45 ... connecting means, 46 ... column, 47 ... piston / cylinder mechanism, 47P ... piston rod, 47S ... cylinder, 48 ... socket, 50 ... ..Power supply means, 51... Plug, 52 .. plug receiver, 53... Piston / cylinder mechanism, 53 S... Cylinder, 53 P. ... Signal transmission means, 61 ... jack 62 ... plug, 63 ... wiring, 70 ... power transmission means, 71 ... support member, 72 ... motor, 73 ... support shaft, 74 ... pinion gear, 75 ..Piston / cylinder mechanism, 75P ... piston rod, 75S ... cylinder, 76 ... driven pulley, 77 ... drive pulley, 78 ... belt, H ... molded body, S. ..Swirl circle.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
The tire manufacturing system according to the present embodiment is a tire manufacturing apparatus including a plurality of work stations for assembling a tire constituent member to a molded body supported by a driving device, similarly to the conventional tire manufacturing systems described above. Further, the molded body is moved between a plurality of work stations, and the tire constituent members are sequentially assembled to manufacture an unvulcanized tire having a predetermined shape and structure. Is moved to a predetermined work station.

Here, the molded object is an object to which the tire component is assembled, and in addition to the above-described rigid core having an outer surface shape corresponding to the inner surface shape of the tire to be molded, the tire component member is disposed on the outer peripheral side. This includes molding drums and cores, or unvulcanized tires and work-in-progress products in the middle of molding.

FIG. 1 is a plan view showing a schematic configuration of a tire manufacturing system according to the present embodiment, and is a plan layout diagram schematically showing main parts of devices and the like constituting the system.
FIG. 2 is an FF arrow view of the tire manufacturing system shown in FIG. 1, and is a schematic sectional side view of a part of the tire manufacturing system as viewed from the side.
In these figures, the same reference numerals are given to the same components as those in FIG. In the following, a case where a rigid core is used as the molded body H and a tire constituent member made of unvulcanized rubber such as tread or sidewall rubber is assembled on the outer surface side thereof will be described as an example.

As shown in the figure, the tire manufacturing system 1 includes a turning device 30 that can rotate (turn) around an axis, at least one (here, four) drive devices 20 installed on the turning device 30, and the turning device 30. And a plurality (four in this case) of work stations 10 arranged around.

The swivel device 30 is, for example, an index table capable of multi-position stop control, and includes a frame 31 fixed to a floor surface, a swivel table 32 having a substantially rectangular shape in plan view, which is horizontally installed thereabove, and an upper end portion. Is fixed to the center of the turntable 32 and has a substantially cylindrical central shaft 33. In addition, a bearing (not shown) that supports the center shaft 33 so as to be rotatable in a vertical state is provided, and the turning table 32 is supported so as to be rotatable in a horizontal state via the bearing and the center shaft 33 and the like. Yes. Further, a motor for rotating the central shaft 33 and the turntable 32 at a predetermined speed, a transmission mechanism for rotational power, and the like (not shown) are provided in the frame 31. As a result, the turning device 30 rotates the turning table 32 around the axis around the central axis 33, and the drive device 20 that supports the molding body H installed on the turning table 32 is moved in one direction or both directions. The workpiece H is swung integrally, the workpiece H is swung in a predetermined direction, and stopped at an arbitrary position.

Similarly to the above, the driving device 20 includes a molding main shaft 21 to which the molding target H is detachably attached to one end side, and a driving unit 22 that rotatably supports the other end side and rotates around the axis. Then, the molded body H is driven by, for example, rotating (removing) the molded body H rotatably and detachably by the molding main shaft 21. The drive device 20 has a ring gear 23 rotatably attached to the drive unit 22, and the central axis thereof is connected to a drive mechanism in the drive unit 22 including a plurality of meshing gears and the like. The ring gear 23 is a driven gear that rotates around the axis by a driving force transmitted from the outside and transmits a driving force for rotating the molding main shaft 21 to the driving unit 22, and has a substantially annular shape having a plurality of teeth on the outer peripheral portion. And is provided on the opposite side (rear side) of the molding spindle 21 of the drive unit 22.

In the present embodiment, four drive units 22 of the drive device 20 are attached and fixed to the upper surface of the turntable 32, and are arranged in the same state with the direction changed by 90 degrees in the turn direction. As a result, the molding spindle 21 extending from each drive device 20 extends substantially horizontally from the swivel device 30 to the side, and every 90 degrees so that its tip is located outside the swivel table 32, and all at the same height. Is arranged. Further, the molding target H at the tip of each molding spindle 21 is positioned on the same circle (swirl circle S) centered on the central axis 33 of the swivel device 30, and when the drive device 20 is swiveled by the swivel device 30, a plurality of molding objects H are provided. The workpiece H is swung between the plurality of work stations 10 along the swivel circle S.

The plurality of work stations 10 are arranged so as to surround the entire drive device 20 that turns, and one or a plurality of assembly devices 11 are respectively installed. The assembling apparatus 11 is a process of assembling and processing predetermined tire constituent members by arranging tire constituent members on the molding target H supported by the driving device 20 or forming them on the outer surface thereof. Device. Here, the assembling apparatus 11 has a hot tuba type or cold tuba type extruder as described above, and its moving means or sticking means for sticking the extruded ribbon-like rubber to the molding H. (Not shown). In this way, for example, a ribbon-shaped rubber is extruded toward the rotating molded body H and wound around the outer surface in a spiral shape, and a tire constituent member such as a tread rubber having a predetermined cross-sectional shape is formed and assembled. Further, in the tire manufacturing system 1, the plurality of work stations 10 are arranged at substantially equal intervals every 90 degrees along the turning circle S of the molded body H, and are similarly configured at each arrangement position 2. One assembling device 11 is provided on both sides of the axis of the molding H so as to face the outer surface.

As described above, the tire manufacturing system 1 uses the turning device 30 to turn the molding body H supported by the drive device 20 between the plurality of work stations 10 and move it to a predetermined work station 10 to move the assembly device 11. Place between. In this state, the molded body H is rotated around the axis by the driving device 20, and each tire constituent member is assembled to the outer surface by the assembling device 11. In this way, while assembling the tire constituent members at each work station 10, the molded body H is moved to the predetermined work station 10 in order, and a plurality of tire constituent members are sequentially assembled and combined. Manufacture vulcanized tires.

At this time, in the tire manufacturing system 1, the plurality of workpieces H are held by the driving device 20 such as turning the workpieces H by 90 degrees, 180 degrees, or 270 degrees. Move to any work station 10 inside. In this manner, the respective molded bodies H are swung in a predetermined order between the plurality of work stations 10, and the tire constituent members are assembled by the respective assembling apparatuses 11, so that the tire constituent members are assembled in a predetermined manner. The production of unvulcanized tires for the four molded bodies H is simultaneously advanced while performing in this order.

In the present embodiment, as will be described later, the drive device 20 is powered and driven so that the turn device 30 can continuously rotate (turn) the turn table 32 and the drive device 20 in a certain direction. A mechanism or means for operating by supplying force or the like is detachably connected to or coupled to the drive device 20. Thereby, at the time of turning by the turning device 30, each connection or connection to the driving device 20 is released, and after the molding object H moves to the work station 10, they are connected or connected to the driving device 20. 20 is ready for operation.

Specifically, the tire manufacturing system 1 transmits signals to the drive device 20 with a medium supply means 40 for supplying a drive medium, a power supply means 50 for supplying power, and the drive device 20. The signal transmission means 60 and the power transmission means 70 for transmitting the driving force to the drive device 20 are provided in a plurality of sets (four in this case) according to the number of the drive devices 20.

These means 40, 50, 60, 70 are detachably connected to and connected to the drive device 20 by, for example, contacting and separating from the drive device 20 by displacement in the vertical direction, and each connection and connection is released. It is configured to be possible. In addition, a plurality of these are provided at predetermined positions in the swiveling device 30 corresponding to the plurality of work stations 10, and are connected to or connected to the drive device 20 of the molding target H that has moved to each work station 10. Thus, it arrange | positions in the position according to the connection part by the side of the drive device 20 or a connection part. Therefore, in this tire manufacturing system 1, each means 40, 50, 60, 70 is the same at a position 90 degrees apart on the same circle around the axis of the turning device 30 below the turning table 32. It can be connected or connected to any of the drive devices 20 which are arranged in the state and moved to the respective arrangement positions. Hereinafter, each of these

means

40, 50, 60, and 70 will be sequentially described in more detail.

3 and 4 are side views schematically showing main parts extracted from the tire manufacturing system 1 (see FIG. 2) and related to the respective means 40, 50, 60, and 70. FIG. The supply means 40, the power supply means 50, and the signal transmission means 60 are shown, and the power transmission means 70 is shown in FIG.

First, the medium supply means 40 is a means for supplying a drive medium (here, air) used for driving the drive device 20 such as air of predetermined pressure, various gases, or hydraulic oil to the drive unit 22. As shown in FIG. 3, it has the to-be-connected part 41 provided in the turning table 32 side, and the connection means 45 arrange | positioned in the flame | frame 31 below it. The connected portion 41 includes a plurality of plugs 42 that are joints for connecting to the connecting means 45, an air supply (distribution) conduit 43 that connects each plug 42 and the drive portion 22, and the like. Is attached to the lower surface of the turntable 32 so as to protrude downward.

On the other hand, the connecting means 45 includes a piston / cylinder mechanism 47 including a column 46 fixed to the frame 31, a cylinder 47S fixed to the upper end side of the column 46, and a piston rod 47P extending upward from the inside thereof, and a piston rod. And a socket 48 attached to the tip (upper end) of 47P. In the socket 48, a plurality of recesses (connecting portions) connected to an air supply source (not shown) are formed at positions facing the plugs 42 on the upper surface so that the plugs 42 can be inserted and fitted therein. The socket 48 and the plug 42 are connected by fitting them together.

The medium supply means 40 operates the piston / cylinder mechanism 47 by air pressure or hydraulic pressure to bring the socket 48 close to and away from the plug 42, and presses the socket 48 against the plug 42 to connect them (see FIG. 3B). The means 45 is connected to the connected part 41. As a result, the medium supply means 40 is detachably connected to the drive device 20, and the drive medium (air) is connected to a drive mechanism such as a piston / cylinder mechanism provided in the drive unit 22 via the socket 48, the plug 42 and the conduit 43. ). Further, when the drive device 20 is turned by the turning device 30, the piston / cylinder mechanism 47 is operated to lower the socket 48, and the socket 48 is pulled away from the plug 42 to release the connection, and is moved to the original separation position (see FIG. 3A). Wait until the next connection.

On the other hand, the power supply means 50 is means for supplying power necessary for driving to the drive device 20, and is arranged so as to face the lower side of the plug 51 that is attached to protrude from the lower surface of the turning table 32. Plug receptacle (outlet) 52. Similarly to the medium supply means 40, the power supply means 50 operates the piston / cylinder mechanism 53 (cylinder 53S) fixed to the frame 31, and moves the plug receiver 52 attached to the tip of the piston rod 53P up and down. , Approach and separate from the plug 51. In this way, the plug 51 is inserted into the plug receiver 52 (see FIG. 3B), and the power source (not shown) connected to the plug receiver 52 via the wiring 54 connecting the plug 51 and the drive unit 22. And the drive device 20 are detachably connected. As a result, the power supply means 50 supplies the drive device 20 with power for driving sensors, motors, and the like included in the drive device 20.

In the tire manufacturing system 1, a connector (jack) 61 of the signal transmission means 60 is attached next to the plug 51, and a connector (plug) 62 is provided next to the plug receiver 52 so as to be opposed thereto. . Accordingly, at the same time as the connection of the power supply means 50, the jack 61 is inserted and coupled to the plug 62, and the signal transmission means 60 is detachably connected to the drive device 20 via the wiring 63. Yes. The signal transmission means 60 is a communication means for transmitting and receiving signals between the driving device 20 at each position and an external device (not shown) to which a plug 62 such as a control device is connected. It is used for transmission of a sensor detection signal from the driving device 20 and reception of a control signal from the control device. On the other hand, when the drive device 20 is turned by the turning device 30, the piston / cylinder mechanism 53 is operated to lower the plug receiver 52 to disconnect the power supply means 50 and the signal transmission means 60 from the drive device 20. Move to the separation position (see FIG. 3A) and wait for the next connection.

The power supply means 50 and the signal transmission means 60 may be connected wirelessly in addition to being detachably connected to the drive device 20. In this case, for example, a power / signal transmitter / receiver is disposed opposite to the lower surface of the turntable 32 with a predetermined distance therebetween, and wirelessly transmits signals and supplies power via them. Do. At that time, the power supply means 50 is configured by known means capable of supplying power wirelessly, such as supplying power to the drive device 20 wirelessly by electromagnetic induction, or transmitting power by radiating electromagnetic waves or high-frequency signals. Is done. Similarly, the signal transmission means 60 is composed of wireless transmission means such as wireless communication means using electromagnetic induction, short-range wireless communication means using, for example, high-frequency signals, radio waves, or infrared rays, and is connected to the driving device 20.

The power transmission means 70 is a mechanism for transmitting a driving force for driving the molding target H or the like to the driving device 20 at each position. Here, as shown in FIG. A rotational driving force for rotating the molding target H is transmitted via the molding main shaft 21. The power transmission means 70 also has a substantially inverted L-shaped support member 71 as viewed from the side, a motor 72 fixed to the side surface (right side in the figure), and a support shaft 71 that rotates on the upper surface of the support member 71. The pinion gear 74 is supported and a piston / cylinder mechanism 75 that displaces the support member 71 in the vertical direction.

In the piston / cylinder mechanism 75, a cylinder 75S is fixed to the frame 31, a support member 71 is attached to the tip of a piston rod 75P extending upward, and a pinion gear 74 on the upper surface side is provided with a penetrating portion formed in the turning table 32. Pass the ring gear 23 toward and away from the ring gear 23 to bring them into contact with each other. A driven pulley 76 is concentrically attached to the support shaft 73 of the pinion gear 74, and an endless belt 78 is suspended between the drive pulley 77 attached to the rotating shaft of the motor 72. As a result, when the drive pulley 77 is rotated by the motor 72, the pinion gear 74 rotates and the belt 78 rotates, and the driven pulley 76 is rotated, via which the rotational power is transmitted to the support shaft 73, and around the axis line. Rotates at a predetermined speed. Further, the pinion gear 74 is formed with a tooth portion that meshes with the tooth portion of the outer peripheral portion of the ring gear 23 on the outer peripheral portion, and rotates in conjunction with the rotation of the motor 72 in a state where they mesh with each other, and rotates to the ring gear 23. Transmit driving force and rotate around the axis. That is, the pinion gear 74 functions as a drive gear for the ring gear 23 that is a driven gear.

The power transmission means 70 operates the piston / cylinder mechanism 75 to displace the support member 71, the motor 72, the pinion gear 74, and the like integrally, and presses the pinion gear 74 against the ring gear 23 so that the tooth portions of each other are moved. Engage (see FIG. 4B). As a result, the power transmission means 70 is detachably connected to the drive device 20, and as described above, the ring gear 23 is rotated via the pinion gear 74 and the like to the drive unit 22 (drive mechanism) of the drive device 20. Transmits the driving force of rotation. When the drive device 20 is turned by the turning device 30, the piston / cylinder mechanism 75 is operated to lower the pinion gear 74, and is separated from the ring gear 23 to release the connection with the drive device 20. (See FIG. 4A) and wait until the next connection.

Next, the procedure and operation | movement which manufactures an unvulcanized tire by the tire manufacturing system 1 demonstrated above, and a tire manufacturing method are demonstrated.
The following procedures and operations are controlled by a control device (not shown) that controls the entire system, and each unit of the system is associated with a predetermined timing and condition based on a predetermined program. Execute in conjunction with.

In addition, the control device includes, for example, a CPU that performs various data processing and operations, a ROM that stores a control program, and a microcomputer that includes a RAM that temporarily stores processing data for the CPU. Composed. Furthermore, each part of the system and the above-described

means

40, 50, 60, 70 and the like are connected to the control device via an interface, and various data including control signals are transmitted and received between them. Thereby, the control device controls the entire system to execute each operation related to the molding of the unvulcanized tire, and also connects and connects each of the above-described

means

40, 50, 60, and 70 (see FIGS. 3 and 4) and , Control the release of them and execute them. Therefore, the control device constitutes each means for executing each operation (process) of manufacturing an unvulcanized tire described below together with each of these

means

40, 50, 60, 70 and the like.

FIG. 5 is a flowchart showing a procedure for manufacturing an unvulcanized tire by the tire manufacturing system 1.
When manufacturing an unvulcanized tire, first, all the connection and connection of the medium supply unit 40, the power supply unit 50, the signal transmission unit 60, and the power transmission unit 70 to all the driving devices 20 are released (FIGS. 3A and 4A). (See S101). Subsequently, the turning device 30 rotates the turning table 32 in a predetermined direction (see FIG. 1), and the drive device 20 that supports the molding target H is turned around the axis (S102). By this turning, the molding target H supported by each driving device 20 is swung between a plurality of surrounding work stations 10 arranged so as to surround the turning driving device 20 (S103).

In this way, the molded body H is sequentially moved to a predetermined predetermined work station 10, and the tire constituent member is assembled to each of the work stations 10 at the moving position on the molded body H that has been turned. More specifically, first, it is determined whether or not the molding object H has been swung to a predetermined work station 10 by, for example, detecting by a sensor (not shown) provided in the swiveling device 30, and the position thereof. The turning of the driving device 20 is continued until the molding target H moves to S2 (NO in S104). Next, when the molding target H is turned to the predetermined work station 10 (S104, YES), the operation of the turning device 30 is stopped and the turning of the driving device 20 is stopped (S105).

Next, each means 40, 50, 60, 70 corresponding to the plurality of drive devices 20 is operated, and each drive device 20 of the molding body H that is swung to each work station 10 as described above. Are connected or connected to each other (S106). That is, on the condition that the molding target H has moved to the work station 10, the power transmission means 70 (see FIG. 4B) that transmits the driving force (here, the rotational driving force) is maintained, and the driving medium. A medium supply means 40 (see FIG. 3B) for supplying air (here, air) is detachably connected to the drive device 20. In addition, a signal transmission means 60 for transmitting a signal between the drive device 20 and the control device and a power supply means 50 for supplying power to the drive device 20 are detachable from the drive device 20 (or wirelessly). Connect). Thereafter, each of the

means

40, 50, 60, 70 is actuated as necessary to transmit the driving force and supply the driving medium to the connected driving device 20, or to supply power to the connected driving device 20. Supply and various signal transmission.

Thereby, the tire manufacturing system 1 is driven by rotating the molding body H by the driving device 20 and the like, and the ribbon-like shape is extruded from the molding body H by the assembling apparatus 11 of each work station 10. Each tire constituent member is assembled by winding rubber or the like (S107). Subsequently, it is determined whether or not the molding of the unvulcanized tire is completed by assembling all the tire constituent members, and when it is not completed (S108, NO), the drive device 20 is turned again, The next tire component assembly process is performed. When the drive device 20 turns, all the connection and connection of the medium supply unit 40, the power supply unit 50, the signal transmission unit 60, and the power transmission unit 70 to all the drive units 20 are released (see FIGS. 3A and 4A). (S101). Thereafter, the same procedure (S102 to S108) as described above is repeated until the molding of the unvulcanized tire is completed (S108, YES).

As described above, the tire manufacturing system 1 moves the workpiece H supported (held) by the drive device 20 in this state based on a predetermined order between the plurality of work stations 10, It moves to the work station 10 and arranges. Further, the tire constituent members are sequentially assembled to the molding target H at each work station 10, and the tire constituent members are arranged in a predetermined order on the molding target H supported by the plurality of driving devices 20. Sulfur tires are continuously molded (manufactured).

In this embodiment, since the molded body H is held by the drive device 20 while being rotated, the tire constituent members are assembled by pivoting with respect to the plurality of work stations 10. It is possible to shorten the time required for removal and delivery of the. At the same time, work such as positioning (positioning) and adjustment of the molded body H with respect to the drive device 20 that occurs by passing each time becomes unnecessary, and the time required can be reduced, so that it is necessary to manufacture an unvulcanized tire. Time is shortened and cycle time can be shortened.

Moreover, in this tire manufacturing system 1, in order to move the to-be-molded body H by installing the drive device 20 in the turning device 30 and moving it, compared with the conventional tire manufacturing system which requires a conveyance robot, an endless rail, etc., The number of devices required for the system can be reduced, or the configuration can be simplified. As a result, the space can be effectively used, and the space required for installing the entire system can be reduced. In addition, for example, compared to a tire manufacturing system (see FIG. 8) in which only the guide for the molded body H is provided on the turntable, the space on the turntable 32 can be used more effectively, and the wasted space on the turntable 32. Can also be suppressed. Thereby, the space occupied by the swivel table 32 and the entire system can be reduced, and further space saving can be achieved.

Therefore, according to the present embodiment, it is possible to save the space of the tire manufacturing system 1 that manufactures the unvulcanized tire by sequentially assembling the tire constituent members to the molded body H at the plurality of work stations 10, and The cycle time for manufacturing the unvulcanized tire can be shortened. As a result, the efficiency of tire manufacture can be increased and productivity can be improved.

Here, when wiring, piping, or the like for supplying or transmitting air, electric power, or a control signal is attached to each driving device 20 by a normal method, the turning by the turning device 30 is performed to prevent the twisting. The direction will be limited.
FIG. 6 is a schematic diagram showing an example (comparative example) of a schematic configuration of such a tire manufacturing system, in which FIG. 6A is a plan view and FIG. 6B is a side view.
In this tire manufacturing system 90, as shown in the figure, two drive devices 20 are installed on the turning device 30 so as to face each other in opposite directions, and around the two work stations 10 including the assembling device 11 around them. Is provided. Further, connecting members 91 such as various wires and pipes are detachably connected to the respective driving devices 20 through the central portion of the turning device 30 to supply electric power and air, or transmit signals.

However, in the tire manufacturing system 90, when the drive device 20 is turned by the turning device 30, the connecting member 91 is twisted in the turning direction, and when the turning in a certain direction is continued, the twist gradually increases. Therefore, in the tire manufacturing system 90, the drive device 20 cannot be continuously turned in a certain direction, and the drive device 20 and the molding target H are alternately turned in both directions by rotating the turning device 30 repeatedly in both directions around the axis. Must be swung (arrow R in the figure).

On the other hand, in this embodiment, the medium supply means 40, the power supply means 50, the signal transmission means 60, and the power transmission means 70 are detachably connected to or coupled to the drive device 20, and each time the drive device 20 turns, Disconnect or connect. Therefore, in the tire manufacturing system 1, the driving device 20 can be continuously turned in a certain direction (for example, the direction of the arrow K in FIG. 1) by the turning device 30, and the molded object H can be rotated 360 degrees or more. It can be swung in any position and direction over the above angles. Along with this, since the degree of freedom of the arrangement of the work station 10 and the molding process can be effectively increased, the space can be used more effectively and further space saving can be achieved. In addition, the production efficiency of the unvulcanized tire can be increased, and the cycle time can be further shortened to improve the productivity.

These means 40, 50, 60, 70 connected to or coupled to the drive device 20 are, for example, integrally attached with a drive motor or the like to the drive device 20 and simultaneously turned, and the power transmission means 70 is omitted. What is necessary is just to provide a required means according to the specification etc. of each tire manufacturing system 1. FIG. Therefore, the tire manufacturing system 1 does not have to include all of these

means

40, 50, 60, and 70, and any one or more of the

means

40, 50, 60, and 70 are connected to or coupled to the driving device 20. It may be. At this time, if the power supply means 50 and the signal transmission means 60 are detachably connected to the driving device 20, there is a concern that damage may be caused by repeated attachment and detachment. Therefore, as described above, the power supply means 50 and the signal transmission means 60 may be connected wirelessly by electromagnetic induction or the like. More desirable.

In the present embodiment, the same number of drive devices 20 and work stations 10 are installed. However, they may be installed in different numbers. For example, one or two drive devices 20 are installed on the turning device 30, A plurality of work stations 10 may be provided around the periphery of the tire to assemble the tire constituent members. Similarly, an area without the work station 10 may be provided around the swivel device 30, and the workpiece H may be attached to or detached from the drive device 20 at that position. Further, the turning movement of the molding object H is not limited to the adjacent work stations 10 in turn, but is also moved every other one or every two times or alternately in the opposite direction. The order is arbitrary.

As described above, the work station 10 provided with the assembling apparatus 11 composed of a ribbon-like rubber extruder or the like has been described as an example. In this work station 10, for example, a carcass ply is attached to the workpiece H and assembled, or You may make it assemble | attach another tire structural member, such as arrange | positioning and assembling | attaching a pair of bead core on the side surface.

Claims

Provided with a plurality of work stations for assembling the tire constituent members to the molded body supported by the driving device, and moving the molded body between the plurality of work stations to sequentially assemble the tire constituent members to produce an unvulcanized tire A tire manufacturing system,
A turning device for turning the drive device, wherein the drive device is installed and rotates around an axis to support the object to be molded;
A plurality of work stations arranged to surround the swiveling drive device;
A tire manufacturing system in which a molding object supported by a driving device is swiveled between a plurality of work stations by a swiveling device.
In the tire manufacturing system according to claim 1,
A plurality of work stations are provided corresponding to the plurality of work stations, removably connected to the drive device of the molding body moved to each work station, and supplied with power transmission means and / or drive medium for transmitting drive force. Medium supply means for
A tire manufacturing system comprising: means for releasing connection of the power transmission means and / or the medium supply means to the drive device when the drive device turns.
In the tire manufacturing system according to claim 1 or 2,
A plurality of signal transmission means provided corresponding to the plurality of work stations, detachably or wirelessly connected to the drive device of the molding object moved to each work station, and for transmitting signals to the drive device; and / or Or power supply means for supplying power to the drive device;
A tire manufacturing system comprising: means for releasing connection of the signal transmission means and / or power supply means to the drive device when the drive device turns.
In the tire manufacturing system according to claim 3,
The tire manufacturing system, wherein the signal transmission means and / or the power supply means are means for wirelessly connecting to a driving device by electromagnetic induction.
A tire manufacturing method for manufacturing an unvulcanized tire by moving a molded body supported by a driving device between a plurality of work stations and sequentially assembling tire constituent members on the molded body at each work station,
A step of turning a driving device that supports the object to be molded around an axis,
A step of rotating the workpiece supported by the driving device between the plurality of work stations arranged so as to surround the rotating driving device;
And a step of assembling a tire constituent member at each work station at the moving position on the workpiece to be turned.
In the tire manufacturing method according to claim 5,
A step of detachably connecting a power transmission means for transmitting a driving force and / or a medium supplying means for supplying a driving medium to the driving device of the molding body swung to each work station;
Transmitting the driving force to the connected driving device and / or supplying a driving medium;
A step of releasing the connection of the power transmission means and / or the medium supply means to the drive device when the drive device is turning.
In the tire manufacturing method according to claim 5 or 6,
A signal transmission means for transmitting signals to the drive device and / or a power supply means for supplying power to the drive device is detachably or wirelessly attached to the drive device of the molding body that has been swung to each work station. Connecting, and
Performing the signal transmission and / or supplying power to the connected drive device;
Disconnecting the signal transmission means and / or the power supply means from the drive device when the drive device is turning.