JP5941387B2 - Tire manufacturing system - Google Patents

Description

  The present invention relates to a tire manufacturing system capable of downsizing a tire manufacturing factory.

  A tire manufacturing plant usually has a material storage zone, a raw tire formation zone that forms a raw tire from materials supplied from the material storage zone, a vulcanization zone that vulcanizes and molds the formed raw tire, and a vulcanization It is divided into an inspection carry-out zone for inspecting and carrying out the existing vulcanized tire. In the green tire forming zone, a green tire is conventionally formed on a green tire forming line schematically shown in FIG.

  The raw tire forming line includes a cylindrical forming drum a, a shaping drum b, and a tread forming drum c. In the molding drum a, an inner liner rubber t1 and a carcass ply t2 are wound around the outer peripheral surface to form a cylindrical carcass body ta. Reference numerals d1 and d2 are conveyor-like servicers for supplying the inner liner rubber t1 and the carcass ply t2, respectively. A bead core t3 with a bead apex rubber is externally inserted into the cylindrical carcass ta. Reference symbol d3 is a servicer that supplies the bead core t3. The cylindrical carcass ta with the bead core t3 extrapolated is transferred from the forming drum a to the shaping drum b using a transfer (transfer device) (not shown).

  In the tread forming drum c, a belt ply t4, a band ply t5, and a tread rubber t6 are wound around the outer peripheral surface to form a cylindrical tread ring tc. Reference numerals d4 to d6 are conveyor-like servicers for supplying the belt ply t4, the band ply t5, and the tread rubber t6, respectively. The tread ring tc is transferred from the tread forming drum c to the outside in the radial direction of the shaping drum b by using a transfer (transfer device) (not shown) and held. Reference symbol d7 is a servicer that supplies sidewall rubber t7 and the like.

  A cylindrical carcass ta is bulged between the bead cores t3 and t3 by the shaping drum b, and the bulged portion is joined to the inner peripheral surface of the tread ring tc to form a raw tire. The green tire is removed from the shaping drum b and then conveyed to the vulcanization zone for vulcanization molding.

  In such a conventional raw tire forming line, various tire constituent members such as the inner liner rubber t1, the carcass ply t2, the bead core t3, the belt ply t4, the band ply t5, the tread rubber t6, the sidewall rubber t7, etc. Each of them is pre-processed offline in various widths, various cross-sectional shapes, or various cord angles according to the tire size. Therefore, it is excellent for mass production of one size tire.

  However, on the other hand, the pre-processed tire component is temporarily stored in the material storage zone as a semi-finished member. Moreover, the number of types increases according to the tire size. Therefore, the space of the material storage zone is increased.

  Further, a separate pre-processing line is required for pre-processing each tire component. In addition, since the tire constituent members themselves are wide, the servicers d1 to d7 that supply them are also enlarged. Therefore, an increase in the space of the green tire forming zone is also caused.

  In addition, since one size of raw tire is mass-produced, the vulcanization process cannot catch up. For this reason, a green tire storage space for temporarily storing and storing a raw tire waiting for vulcanization is required. In addition, the number of vulcanization molds needs to be increased in accordance with mass production. Even in the same type of tire, the type of vulcanization mold increases according to the size of the tire. Therefore, a space for storing many other vulcanization molds that are not used for vulcanization is also required.

As a result, when installing a tire manufacturing factory, a site space of at least a width of 25 m and a length of 170 m or more is required, which greatly hinders the factory installation.

  In addition, the following patent document 1 etc. are mentioned as a prior art relevant to a raw tire formation line.

JP 2000-351164 A

  An object of the present invention is to provide a tire manufacturing system capable of downsizing a tire manufacturing factory.

In order to solve the above-mentioned problems, the invention of claim 1 of the present application includes a raw tire forming zone for forming a raw tire on the outer surface of a rigid core, and a vulcanization molding of the formed raw tire together with the rigid core. A tire manufacturing system comprising a vulcanization zone, an inspection carry-out zone for inspecting and carrying out vulcanized pre-vulcanized tires, and a material storage zone for storing raw tire forming materials,
The raw tire formation zone has a track and a plurality of work stations arranged along the track, and the tire structure is formed at each work station on the outer surface of the rigid core moving on the track. While forming the raw tire by assembling the members,
The track is composed of a horizontally long U-shaped track having a pair of horizontal track portions extending in the horizontal direction and a vertical track portion connecting between ends of one side in the horizontal direction of each horizontal track portion,
In addition, each work station affixes the material for forming the tire constituent member set for each tire constituent member on the outer surface of the rigid core based on the pasting conditions determined according to the size of the rigid core. A member assembling device that forms a tire constituent member, and the member assembling device is disposed along an outer peripheral side of the U-shaped track and along a lateral track portion,
Each of the work stations includes a core transfer carriage that moves along a track while holding the rigid core, and each core transfer carriage sequentially receives the rigid core between adjacent core transfer carriages. By passing, the rigid core can be moved from the start end position of the track to the end position through one of the horizontal track portions, the vertical track portion, and the other horizontal track portion,
The material storage zone is arranged adjacent to one side in the lateral direction of the U-shaped track, and a member material used by the member assembly device or an intermediate material for forming the member material is attached to each member assembly. Store it in supply for the equipment,
The vulcanization zone is disposed adjacent to the other side in the lateral direction of the U-shaped track,
And the said inspection carrying-out zone is arrange | positioned adjacent to the other horizontal direction side of the said vulcanization zone, It is characterized by the above-mentioned.

According to a second aspect of the present invention, the track is formed by a pair of rails parallel to each other .

In claim 3, the tire constituent member is divided into a rubber member including a tread rubber and a sidewall rubber, a cord ply member including a carcass ply and a belt ply, and a wire member including a bead core.
As a material for the rubber member, a long tape-shaped rubber strip is used,
As a member material of the cord ply member, a long tape-like cord strip in which an array of tire cords aligned in the length direction is covered with a topping rubber is used.
A rubberized wire is used as a member material of the wire member.
According to a fourth aspect of the present invention, the horizontal track portion and the vertical track portion are each formed in a straight line and are orthogonal to each other.
According to a fifth aspect of the present invention, the horizontal track portion and the vertical track portion are discontinuous.

  In the tire manufacturing system of the present invention, the raw tire forming zone has a plurality of work stations arranged along a track, and is arranged on each work station on an outer surface of a rigid core moving on the track. A raw tire is formed by assembling tire constituent members using a member assembling apparatus. In addition, the member assembling apparatus forms a tire constituent member by attaching a member material set for each tire constituent member on the basis of a pasting condition determined according to the size of the rigid core.

  Therefore, it is not necessary to previously form the tire constituent member as a semi-finished member corresponding to the tire size. As a result, the number of types of semi-finished members can be reduced and the space for the material storage zone can be reduced. In addition, a processing line for forming the semi-finished member is not necessary, and the member material itself is narrow, so that the member assembling apparatus can be downsized. Therefore, the space of the green tire forming zone can be reduced.

Moreover, since tire constituent members corresponding to the size of the rigid core can be formed depending on the application conditions of the member material, it is possible to simultaneously form tires of a plurality of sizes on one line. Therefore, it can reduce the number of pressure 硫待 Chinosei tire. Since a plurality of vulcanization molds can be used simultaneously, the number of vulcanization molds not used for vulcanization can be reduced.

  Further, since the track is a U-shaped track, the lateral length thereof can be halved to ½ or less of the linear track. Further, the space occupied by the track can be minimized, for example, the track can be formed narrower than the U-shaped track.

  The member assembling apparatus is disposed along the outer circumferential side of the U-shaped track and along the lateral track portion, and the material storage zone is adjacent to one side in the lateral direction (vertical track portion side) of the U-shaped track. Arranged. Therefore, the material supply from the material storage zone to each member assembling apparatus can be performed at the shortest distance. Further, since the vulcanization zone is arranged adjacent to the other side in the lateral direction of the U-shaped track (the side opposite to the vertical track portion), the raw tire from the raw tire formation zone is placed in the vulcanization zone at the shortest distance. Can be brought in. That is, there is no waste of the material and the raw tire conveyance path.

And by these interaction, a tire manufacturing factory can be reduced in size significantly, for example in the space of width 25m or less and length 100m or less.

1 is a plan view conceptually showing one embodiment of a tire manufacturing system of the present invention. It is an enlarged plan view which shows a green tire formation zone and a vulcanization zone notionally. It is an enlarged plan view which shows a raw tire formation line notionally. (A), (B) is an effect | action figure explaining control by a control apparatus. It is sectional drawing which shows one Example of the green tire formed with the green tire formation line of this invention. (A)-(C) are perspective views which show the member material which forms a tire structural member. It is explanatory drawing which shows the method of forming tread rubber (tire structural member) with a rubber strip (member material). (A)-(D) are explanatory drawings which show the method of forming a carcass ply (tire constituent member) with a cord strip (member material). (A)-(C) are explanatory drawings which show the method of forming a belt ply (tire constituent member) with a cord strip (member material). It is a side view of a rubber strip sticking apparatus. It is a side view of a wire sticking apparatus. It is a side view of a code strip sticking apparatus. It is a side view of a code strip sticking apparatus. It is a top view which shows the conventional raw tire formation line notionally.

Hereinafter, embodiments of the present invention will be described in detail.
As shown in FIG. 1, the tire manufacturing system 1 of the present embodiment includes a raw tire forming zone Z2 that forms a raw tire 6 (shown in FIG. 5), and a vulcanization that vulcanizes and forms the formed raw tire 6. A zone Z3, an inspection carry-out zone Z4 for inspecting and carrying out vulcanized pre-vulcanized tires, and a material storage zone Z1 for storing raw tire forming materials are provided.

  Among these, as shown in FIG. 2, the green tire forming zone Z <b> 2 includes a green tire forming line having a track 3 and a plurality (n) of work stations 4 arranged along the track 3. In this raw tire forming line, a plurality of (n) tire components T are assembled to the outer surface of the rigid core 5 moving on the track 3 at each work station 4 in the order of arrangement. A raw tire 6 made of the tire constituent member T is formed.

FIG. 5 shows an embodiment of the green tire 6 formed in the green tire forming line. This raw tire 6 is, in this example,
(A) One or more sheets from the tread portion 6a to the side wall portion 6b to the bead portion 6c, in this example, one carcass ply T1,
(A) One or more, in this example, two belt plies T2, arranged radially outside the carcass ply T1 and inside the tread portion 6a,
(C) One or more sheets arranged in the radially outer side of the belt ply T2, one band ply T3 in this example,
(D) Tread rubber T4 forming the outer surface of the tread portion 6a,
(E) a sidewall rubber T5 forming the outer surface of the sidewall portion 6b;
(F) Chafer rubber T6 for preventing rim displacement that forms the outer surface of the bead portion 6c;
(G) Inner liner rubber T7 that forms the inner surface of the tire.
(G) Inner and outer bead cores T8 and T9 arranged in the bead portion 6c and sandwiching the radially inner end of the carcass ply T1 from inside and outside in the tire axial direction, It is formed by a plurality (n = 11) of tire constituent members T, which are inner and outer bead apex rubbers T10 and T11 for reinforcing the beads respectively rising from T9.

  The carcass ply T1 includes a carcass cord arranged at an angle of, for example, 90 ° with respect to the tire equator Co, and a topping rubber that covers the carcass cord. The belt ply T2 includes, for example, a belt cord arranged at an angle θ of 10 to 40 ° (shown in FIG. 9) with respect to the tire equator Co, and a topping rubber covering the belt cord. The band ply T3 includes a band cord arranged in the tire circumferential direction and a topping rubber covering the band cord.

  The plurality (n = 11) of tire constituent members T1 to T11 constituting the raw tire 6 are respectively configured to be tire constituent member forming member materials M1 to M11 for the respective tire constituent members T1 to T11. It is formed by being pasted based on the pasting condition J determined according to the size of the rigid core 5.

For example, when forming the raw tire 6 of the size of A, B, C,
(A) The size A raw tire 6A is provided on the outer peripheral surface of the rigid core 5A.
_A tire constituent member T1 _A formed by pasting the member material M1 under the pasting condition J1 _A ;
_A tire constituent member T2 _A obtained by pasting the member material M2 under the pasting condition J2 _A ;
_A tire constituent member T3 _A obtained by pasting the member material M3 under the pasting condition J3 _A ;
_A tire constituent member T4 _A obtained by pasting the member material M4 under the pasting condition J4 _A ;
_A tire constituent member T5 _A formed by applying the member material M5 under the application condition J5 _A ;
_A tire component T6 _A formed by applying the member material M6 under the application condition J6 _A ;
_A tire constituent member T7 _A formed by applying the member material M7 under the application condition J7 _A ;
_A tire constituent member T8 _A obtained by pasting the member material M8 under the pasting condition J8 _A ;
_A tire constituent member T9 _A obtained by pasting the member material M9 under the pasting condition J9 _A ;
The member material M10, a tire component T10 _A comprising stuck in sticking conditions J10 _A,
A tire constituent member T11 _A obtained by pasting the member material M11 under the pasting condition J11 _A ;
Is formed by pasting.

(B) The size B green tire 6B is formed on the outer peripheral surface of the rigid core 5B.
A tire component T1 _B formed by pasting the member material M1 under the pasting condition J1 _B ;
A tire component T2 _B formed by pasting the member material M2 under the pasting condition J2 _B ;
A tire component T3 _B formed by pasting the member material M3 under the pasting condition J3 _B ;
A tire component T4 _B formed by applying the member material M4 under the application condition J4 _B ;
A tire component T5 _B formed by applying the member material M5 under the application condition J5 _B ;
A tire constituent member T6 _B formed by pasting the member material M6 under the pasting condition J6 _B ;
A tire component T7 _B formed by pasting the member material M7 under the pasting condition J7 _B ;
A tire component T8 _B formed by applying the member material M8 under the application condition J8 _B ;
A tire component T9 _B formed by pasting the member material M9 under the pasting condition J9 _B ;
A tire constituent member T10 _B formed by pasting the member material M10 under the pasting condition J10 _B ;
A tire component T11 _B formed by pasting the member material M11 under the pasting condition J11 _B ;
Is formed by pasting.

(C) The size C raw tire 6C is formed on the outer peripheral surface of the rigid core 5C.
A tire constituent member T1 _C formed by pasting the member material M1 under the pasting condition J1 _C ;
A tire component T2 _C formed by pasting the member material M2 under the pasting condition J2 _C ;
A tire component T3 _C formed by pasting the member material M3 under the pasting condition J3 _C ;
A tire component T4 _C formed by applying the member material M4 under the application condition J4 _C ;
A tire component T5 _C formed by pasting the member material M5 under the pasting condition J5 _C ;
A tire component T6 _C formed by pasting the member material M6 under the pasting condition J6 _C ;
A tire component T7 _C formed by pasting the member material M7 under the pasting condition J7 _C ;
A tire constituent member T8 _C formed by pasting the member material M8 under the pasting condition J8 _C ;
A tire component T9 _C formed by pasting the member material M9 under the pasting condition J9 _C ;
A tire component T10 _C formed by pasting the member material M10 under the pasting condition J10 _C ;
A tire component T11 _C formed by pasting the member material M11 under the pasting condition J11 _C ;
Is formed by pasting.

  Specifically, the tire constituent members T1 to T11 are divided into a rubber member TG, a cord ply member TC, and a wire member TW. In this example, the rubber member TG includes the tread rubber T4, sidewall rubber T5, chafer rubber T6, inner liner rubber T7, and inner and outer bead apex rubbers T10 and T11. The cord ply member TC includes the carcass ply T1, the belt ply T2, and the band ply T3. The wire member TW includes the inner and outer bead cores T8 and T9.

  The member material M4 of the tread rubber T4, the member material M5 of the sidewall rubber T5, the member material M6 of the chafer rubber T6, the member material M7 of the inner liner rubber T7, the inner and outer bead apex rubbers T10 and T11, which form the rubber member TG. As the member materials M10 and M11, as shown in FIG. 6A, a long tape-like rubber strip 8 is used. As shown in FIG. 7, the rubber strip 8 is applied with a so-called strip winding method (STW method) in which it is spirally wound. A rubber member TG having a cross-sectional shape and a cross-sectional size can be appropriately formed. Similarly, the size of the rubber member TG can be adapted to each size of the rigid core 5 by adjusting the conditions. Therefore, the helical pitch, the number of windings, etc. are mentioned as sticking conditions J4, J5, J6, J7, J10, J11 of member material M4, M5, M6, M7, M10, M11. Of course, the rubber composition and the cross-sectional dimensions of the rubber strip 8 are set for each of the member materials M4, M5, M6, M7, M10, and M11.

  Further, as shown in FIG. 6B, the member material M1 of the carcass ply T1, the member material M2 of the belt ply T2, and the member material M3 of the band ply T3 forming the cord ply member TC are aligned in the length direction. A long tape-shaped cord strip 9 in which an array of tire cords 9a is covered with a topping rubber 9b is used.

  In the case of the carcass ply T1, as shown in FIGS. 8A to 8D, a strip 9A obtained by cutting the cord strip 9 by a predetermined length is set so that the tire cord 9a is perpendicular to the tire equator Co. In this direction, it is formed by sticking sequentially in the tire circumferential direction. At this time, by adjusting the cutting length L of the strips 9A, the overlap width Wg (or gaps) between the strips 9A, the number of sheets attached in the circumferential direction, etc., the size of the carcass ply T1 can be reduced. Can be adapted to each size. Therefore, as the sticking condition J1 for the member material M1, the cutting length L of the strips 9A, the overlapping width Wg (or gaps) between the strips 9A, the number of pasted pieces in the circumferential direction, and the like can be given.

  Further, in the case of the belt ply T2, as shown in FIGS. 9A to 9C, a strip 9B obtained by obliquely cutting the cord strip 9 with a predetermined length is connected to the tire equator Co. It is formed by sticking sequentially in the tire circumferential direction in a direction inclined at the angle θ. At this time, by adjusting the cutting angle α, the cutting length L, the gap Wd between the strips 9B, the number of sheets attached in the circumferential direction, the attaching angle θ (θ = α), etc. The size can be adapted to each size of the rigid core 5. Therefore, as the sticking condition J2 for the member material M2, the cutting angle α of the strip 9B, the cutting length L, the gap Wd between the strips 9B, the number of sticking in the circumferential direction, the sticking angle θ (θ = α), and the like can be given. .

  In the case of the band ply T3, the cord strip 9 is formed by continuously winding the cord strip 9 spirally in the tire circumferential direction. At this time, the size of the band ply T3 can be adapted to each size of the rigid core 5 depending on the helical pitch of the cord strip 9, the number of windings, and the like. Accordingly, the application condition J3 for the member material M3 includes the helical pitch of the cord strip 9, the number of windings, and the like. Of course, the material and thickness of the tire cord 9a in the cord strip 9, the distance between cords, the rubber composition of the topping rubber 9b, and the like are set for each of the member materials M1, M2, and M3.

  Further, as the member materials M8 and M9 of the inner and outer bead cores T8 and T9 forming the wire member TW, a rubberized wire 7 shown in FIG. 6C is used. Bead cores T8 and T9 are formed by spirally winding the rubberized wire 7 from the inner side to the outer side in the radial direction. Further, the size of the bead cores T8 and T9 can be adapted to each size of the rigid core 5 depending on the winding radius of the rubberized wire 7 and the number of windings. Accordingly, as the attaching conditions J8 and J9 of the member materials M8 and M9, the winding radius of the rubberized wire 7, the number of windings, and the like can be given.

  Next, the rigid core 5 includes a plurality of sizes of rigid cores for forming tires of different sizes. In this example, for example, three sizes of rigid cores 5A, 5B, and 5C are used, and three sizes of raw tires 6A, 6B, and 6C are simultaneously formed on one line. In the rigid cores 5A, 5B, and 5C, as shown in FIG. 5, at least one of a bead diameter Dt, a bead width Wt, a cross-sectional height Ht, and the like is different.

  Further, as shown in FIG. 2, the track 3 is formed as a horizontally long U-shaped track. Specifically, the track 3 includes a pair of parallel track portions 3A and 3C extending in the horizontal direction and a vertical track portion 3B connecting between the ends of the horizontal track portions 3A and 3C on one side in the horizontal direction. Formed from. Then, the end of the other side of the horizontal track portion 3A in the other side is set as a starting end position P1, passing through the horizontal track portion 3A → the vertical track portion 3B → the horizontal track portion 3C, on the other side in the horizontal direction of the horizontal track portion 3C. The rigid core 5 is guided to the end position P2, which is the end. A bent portion Qa is formed at the intersection between the lateral track portion 3A and the vertical track portion 3B and at the intersection between the vertical track portion 3B and the horizontal track portion 3C. In this example, the track 3 is formed by a pair of rails 20 parallel to each other.

  In addition, the plurality of (n = 11) work stations 4 arranged along the track 3 are each provided with a member assembling device 21 for assembling the tire constituent member T on the outer surface of the rigid core 5. Each of the member assembling apparatuses 21 is controlled by a control apparatus 10 (shown in FIG. 4), and affixes the member material M based on a pasting condition J instructed from the control apparatus 10.

  The rigid core 5 is transported by a core transport carriage 2 that moves on the track 3. In this example, the core transport carriage 2 is arranged at each work station 4. The core transfer carriage 2 moves between the adjacent work stations 4 and 4 and sequentially transfers the rigid core 5 between the adjacent core transfer carriages 2 and 2. With this delivery, even when the track 3 is a U-shaped track having a bent portion Qa, the rigid core 5 can be transported from the start position P1 to the end position P2. In other words, it becomes possible to adopt a U-shaped track, and the track length in the lateral direction can be reduced to ½ or less of that of a linear track. Further, the space of the track 3 (including the inner space surrounded by the track 3) can be minimized, for example, the vertical width of the track can be narrower than that of the U-shaped track.

In the present example, the work station 4 is enlarged as shown in FIG.
(1) A first work station 4a including a member assembling device 21a for assembling the chafer rubber T6 as the member assembling device 21;
(2) a second work station 4b including a member assembling device 21b for assembling the inner liner rubber T7 as the member assembling device 21;
(3) a third work station 4c having a member assembling device 21c for assembling the inner bead core T8 as the member assembling device 21;
(4) a fourth work station 4d including a member assembling device 21d for assembling the bead apex rubber T10 as the member assembling device 21;
(5) A fifth work station 4e including a member assembling device 21e for assembling the carcass ply T1 as the member assembling device 21;
(6) A sixth work station 4f including a member assembling device 21f for assembling the outer bead core T9 as the member assembling device 21;
(7) A seventh work station 4g having a member assembling device 21g for assembling the outer bead apex rubber T11 as the member assembling device 21;
(8) An eighth work station 4h including a member assembling device 21h for assembling the belt ply T2 as the member assembling device 21;
(9) A ninth work station 4i including a member assembling device 21i for assembling the band ply T3 as the member assembling device 21;
(10) A tenth work station 4j including a member assembling device 21j for assembling the sidewall rubber T5 as the member assembling device 21;
(11) The member assembling apparatus 21 includes an eleventh work station 4k including a member assembling apparatus 21k for assembling the tread rubber T4, and is arranged along the track 3 in this order.

  Each of the member assembling devices 21 is disposed on the outer peripheral side of the U-shaped track and along the lateral track portions 3A and 3C. When the member assembly device 21 is arranged on the inner peripheral side of the U-shaped track, it is difficult to supply the material from the material storage zone Z1 to each member assembly device 21. Further, when the member assembling apparatus 21 is installed along the vertical track portion 3B, an unnecessary increase in the lateral length of the raw tire forming zone Z2 is caused, which is disadvantageous for downsizing the factory.

  Moreover, the control apparatus 10 which controls the said member assembly apparatuses 21a-21k is provided with the memory | storage part 15, the identification sensor (not shown), and the control part 17, as shown to FIG. 4 (A) and (B). .

The storage unit 15 stores in advance data of the application condition J of each member material M determined for each size of the rigid core 5. In the case of this example, the storage unit 15 stores data on the pasting conditions J1 _{A to} J11 _A of the member materials M1 to M11 in the size _A , and data on the pasting conditions J1 _{B to} J11 _B of the member materials M1 to M11 in the size B. stores and sticking condition _{J1 C ~J11} C of member material M1~M11 in size C.

  The identification sensor identifies the size of the rigid core 5 to be loaded each time the rigid core 5 is loaded into each work station 4. In this example, an identification sensor is arranged in each work station 4a to 4k, the size of the rigid core 5 carried into the first work station 4a, and the size of the rigid core 5 carried into the second work station 4b. ... The size of the rigid core 5 carried into the eleventh work station 4k is identified for each carry-in. The identification method is not particularly limited. For example, an identification mark, an IC tag, or the like is provided on the rigid core 5, and the size of the rigid core 5 can be identified by reading it.

  The control unit 17 also applies paste condition J data (the paste condition J data corresponding to the identified size) obtained from the identification information from the identification sensor and the stored data stored in the storage unit 15 in advance. Based on this, the member assembling apparatus 21 of the work station 4 to be carried in is controlled.

  In this example, the control unit 17 is provided for each member assembling apparatus 21. The storage unit 15 downloads data of the pasting condition J corresponding to the identified size to the control unit 17 based on the identification information from the identification sensor. The control unit 17 controls the target member assembling apparatus 21 based on the downloaded pasting condition J data.

  FIG. 4A conceptually shows the case where the tire constituent member T is formed on the rigid core 5 at the first to fourth work stations 4a to 4d, respectively.

To explain on behalf of third work station 4c, the third work station 4c, against the rigid core 5A, and paste based member material M8 data of sticking conditions J8 _A, tire components T8 _A (inner bead core) is formed.

  When the pasting is completed, as shown in FIG. 4B, the rigid core 5A of the third work station 4c is transferred to the fourth work station 4d on the downstream side. Further, the rigid core 5B is carried into the third work station 4c from the second work station 4b on the upstream side.

At this time, the identification sensor provided in the third work station 4 c identifies the size B of the rigid core 5 </ b> B to be carried in and transmits the identification information to the storage unit 15. Based on the transmitted identification information, the storage unit 15 downloads the data of the paste condition J8 _B for size B to the control unit 17 provided in the third work station 4c. Thus, the data of the control unit 17 is replaced to the data of the sticking conditions J8 _B. The control unit 17, based on the data of the sticking condition J8 _B, and controls the member assembling device 21c, to form a _(bead core in) tire components T8 B for size B to the carry stiffness core 5B .

  Thus, in the raw tire formation line of this example, the size of the rigid core 5 to be loaded is identified every time the rigid core 5 is loaded into the work station 4. The member assembling apparatus 21 is controlled based on the data of the sticking condition J corresponding to the size of the rigid core 5 that has been carried in, and the tire constituent members T corresponding to the size of the rigid core 5 are sequentially formed. .

  Accordingly, it is possible to form a plurality of sizes of raw tires on one line at the same time, and reliably and efficiently at random without causing confusion.

  10 to 13 show an example of the member assembling apparatus 21.

  As the member assembling devices 21a, 21b, 21d, 21g, 21j, and 21k, a rubber strip sticking device 22 as shown in FIG. 10 can be suitably employed. As the member assembling devices 21c and 21f, a wire sticking device 28 as shown in FIG. 11 can be suitably employed. As the member assembling device 21e, a cord strip sticking device 32 as shown in FIG. 12 can be suitably employed. Further, as the member assembling devices 21h and 21i, a cord strip sticking device 36 as shown in FIG. 13 can be suitably employed.

  As shown in FIG. 10, the rubber strip sticking device 22 includes an applicator 22A for sticking a rubber strip, and a moving base 22B that moves the applicator 22A in the Y direction perpendicular to the track 3. The applicator 22A includes a belt conveyor 24 that receives the rubber strip 8 from the rubber strip supply device 23 and conveys it to the front side in the Y direction, and an affixing roller 25 disposed at the front end thereof. The applicator 22A is height-adjusted via an elevating means 26 having a well-known structure so that the axis of the sticking roller 25 has the same height as the core axis 5j of the rigid core 5.

  In this example, the rubber strip supply device 23 is a rubber strip forming device, and is formed of a metered rubber extruder 23A and a calendar device 23B arranged at the front end thereof. In this example, the quantitative rubber extruder 23A includes a gear pump 23A2 at the front end of the screw type rubber extruder 23A1. The rubber strip forming apparatus can intermittently supply the material rubber G, which is input from the rubber input port, in accordance with the ON / OFF operation of the gear pump 23A2, while forming the rubber strip 8 having a predetermined cross-sectional shape.

  As shown in FIG. 11, the wire sticking device 28 includes an applicator 28A for sticking a rubberized wire and a moving base 28B that moves the applicator 28A in the Y direction. The applicator 28A includes a guide portion 30 composed of a plurality of guide rollers for guiding the rubberized wire 7 received from the wire supply device 29 to the front side in the Y direction, and a pasting portion 31 having a pasting roller disposed on the front end thereof. With The guide portion 30 can correct the curl of the rubberized wire 7 by guiding the rubberized wire 7 in a zigzag shape. The affixing portion 31 has a gripping portion (not shown) for gripping the leading end portion of the rubberized wire 7 and pressing it against the rigid core 5. The wire supply device 29 is a reel stand in this example, and holds the reel 7R around which the rubberized wire 7 is wound so as to be freely rewound.

  As shown in FIG. 12, the code strip sticking device 32 includes an applicator 32A for sticking a cord strip and a guide portion 32B. The guide portion 32B takes the cord strip 9 from the cord strip supply device 33 into the strip. It is supplied to the applicator 32A while cutting into pieces 9A. The applicator 32 </ b> A includes an unwinding roller 35 supported by the lifting / lowering means 34, and the strip 9 </ b> A is attached while being unrolled along the outline of the rigid core 5 by the lowering of the unwinding roller 35. In the present example, the cord strip supply device 33 is a reel stand, and holds the reel 9R around which the cord strip 9 is wound so as to be freely rewound.

  As shown in FIG. 13, the cord strip applicator 36 includes an applicator 36A for attaching a cord strip, and a lifting platform 36B that supports the applicator 36A so as to be movable up and down. The applicator 36A includes a belt conveyor 38 that receives the cord strip 9 from the cord strip supply device 37 and conveys the cord strip 9 to the front side in the Y direction, and an affixing roller 39 disposed at the front end thereof. In this example, the sticking roller 39 is supported such that its axis is vertically movable along a vertical line V passing through a core center point 5P where the equator plane of the rigid core intersects the core axis 5j. In the case of the belt ply T2, as shown in FIG. 9C, the core axis 5j is formed on the upper surface of the rigid core 5 in the direction inclined at an angle of (90 ° −θ) with respect to the Y direction. The strip 9B is supplied and pasted in the Y direction. In the case of the band ply T3, the cord strip 9 is supplied in the Y direction and spirally formed on the upper surface of the rigid core 5 in which the core axis 5j is supported at an angle of 90 ° to the Y direction. It is pasted continuously. In this example, the cord strip supply device 37 is a reel stand, and holds the reel 9R around which the cord strip 9 is wound so as to be freely rewound.

  Next, as shown in FIG. 2, the vulcanization zone Z3 is arranged adjacent to the other lateral side of the U-shaped track (the side on which the start position P1 and the end position P2 are arranged). The vulcanization zone Z3 includes a vulcanization molding line having a plurality of vulcanization molds 18 for vulcanizing and molding the raw tire 6 formed by the raw tire formation line together with the rigid core 5.

  The vulcanization mold 18 includes a plurality of vulcanization molds for forming tires of different sizes, and in this example, includes vulcanization molds 18A, 18B, and 18C for sizes A, B, and C. . The ratio of the number of molds of the vulcanizing molds 18A, 18B, 18C is preferably equal to the ratio of the number of cores of the rigid cores 5A, 5B, 5C. For example, when the ratio of the number of cores of the rigid cores 5A, 5B, and 5C is 3: 2: 1, the ratio of the number of molds of the vulcanizing molds 18A, 18B, and 18C is also set to 3: 2: 1. preferable. Thereby, the operation rate of the vulcanization mold 18 can be maximized.

  Reference numeral 13 in FIG. 2 denotes a transfer carriage, which receives the formed raw tire 6 with a rigid core at the end position P2 and puts it into the vulcanization mold 18. The terminal position P2 is provided with an identification sensor (not shown) for identifying the size of the rigid core 5. Based on the identification information, the transfer carriage 13 sizes the raw tire 6 with the rigid core. Is put into a vulcanization mold 18 suitable for the above. In addition, the transfer carriage 13 transfers the vulcanized tire with a rigid core vulcanized and molded from the vulcanization mold 18 to the station 14. The station 14 is provided on the side of the starting end position P1, and an operation of taking out the rigid core 5 from an already vulcanized tire with a rigid core is performed. The taken out rigid core 5 is reintroduced into the green tire forming line from the starting end position P1. Further, the already vulcanized tire is conveyed to the inspection carry-out zone Z4 by the conveyance carriage 16 (shown in FIG. 1) through one side in the vertical direction of the vulcanization zone Z3.

  The inspection carry-out zone Z4 is arranged adjacent to the other lateral side of the vulcanization zone Z3. In the inspection carry-out zone Z4, a well-known shipping inspection (for example, inspection of appearance quality, weight balance, uniformity, etc.) is performed on the already vulcanized tire and then carried out.

  The material storage zone Z1 is disposed adjacent to one side in the lateral direction of the U-shaped track (the side on which the vertical track portion 3B is disposed). In the material storage zone Z <b> 1, the member material M used by the member assembly device 21 or an intermediate material for forming the member material M is stored so as to be supplied to each of the member assembly devices 21.

  In this example, of the member material M, the cord strip 9 and the rubberized wire 7 are stored in the state of reels 9R and 7R (shown in FIGS. 11 to 13), and the work stations 4e, 4h, 4i, 4c and 4f. Of the member material M, the rubber strip 8 is stored in a state of a material rubber G (shown in FIG. 10) before extrusion molding and supplied to the work stations 4a, 4b, 4d, 4g, 4j, and 4k. Is done. Therefore, in this example, the material rubber G corresponds to the intermediate material.

  These rubber strip 8, cord strip 9, and rubberized wire 7 are formed by a known rubber kneading device and topping device installed in the material storage zone Z1 in appropriate amounts according to the production status of the tire.

  Thus, in the tire manufacturing system of the present invention, it is not necessary to previously form the tire constituent member T as a semi-finished member corresponding to the tire size, so that the space of the material storage zone Z1 can be reduced. In addition, the processing line for forming the semi-finished member is not necessary, and the member material M itself is narrow, so that the member assembling apparatus 21 can be downsized. Therefore, the space of the raw tire forming zone Z2 can also be reduced.

Moreover, since the tire constituent member T corresponding to the size of the rigid core 5 can be applied while forming the tire material T according to the application condition J of the member material M, it is possible to form a plurality of sizes of tires simultaneously. Therefore, it can reduce the number of pressure 硫待 Chinosei tire. Moreover, since a plurality of sizes of vulcanization molds can be used simultaneously, the number of vulcanization molds not used for vulcanization can be reduced.

  Further, since the track is a U-shaped track, the space occupied by the track can be minimized.

The member assembling apparatus 21 is disposed along the outer circumferential side of the U-shaped track and along the lateral track portions 3A and 3C, and the material storage zone Z1 is adjacent to the lateral side of the U-shaped track. Be placed. Therefore, the material supply path 11 (shown in FIG. 1) from the material storage zone Z1 to each member assembling apparatus 21 can be formed in the shortest time. Further, since the vulcanizing zone Z3 is arranged adjacent to the other side in the lateral direction of the U-shaped track, the conveying path 12 (see FIG. 1) of the raw tire 6 from the raw tire forming zone Z2 to the vulcanizing zone Z3. .) Can be formed in the shortest time. That is, there is no waste of material and raw tire feeding paths. These interactions make it possible to greatly reduce the size of a tire manufacturing factory, for example, in a space with a width of 25 m or less and a length of 100 m or less.

  As mentioned above, although especially preferable embodiment of this invention was explained in full detail, this invention is not limited to embodiment of illustration, It can deform | transform and implement in a various aspect.

DESCRIPTION OF SYMBOLS 1 Tire manufacturing system 2 Core conveyance trolley 3 Track | orbit 3A, 3C Horizontal track | orbit part 3B Vertical track | orbit part 4 Work station 5 Rigid core 6 Raw tire 7 Rubber | gum pulling wire 8 Rubber strip 9 Code strip 9a Tire cord 9b Topping rubber 21 Member assembly Attachment device J Application condition M Member material P1 Start position P2 End position T Tire component T1 Carcass ply T2 Belt ply T4 Tread rubber T5 Side wall rubber T8, T9 Bead core TC Cord ply member TG Rubber member TW Wire member Z1 Material storage zone Z2 Raw tire formation zone Z3 Vulcanization zone Z4 Inspection carry-out zone

Claims (5)

A raw tire forming zone for forming a raw tire on the outer surface of the rigid core, a vulcanization zone for vulcanizing and molding the formed raw tire together with the rigid core, and inspecting the vulcanized pre-vulcanized tire; A tire manufacturing system comprising an inspection carry-out zone for carrying out and a material storage zone for storing a raw tire forming material,
The raw tire formation zone has a track and a plurality of work stations arranged along the track, and the tire structure is formed at each work station on the outer surface of the rigid core moving on the track. While forming the raw tire by assembling the members,
The track is composed of a horizontally long U-shaped track having a pair of horizontal track portions extending in the horizontal direction and a vertical track portion connecting between ends of one side in the horizontal direction of each horizontal track portion,
In addition, each work station affixes the material for forming the tire constituent member set for each tire constituent member on the outer surface of the rigid core based on the pasting conditions determined according to the size of the rigid core. A member assembling device that forms a tire constituent member, and the member assembling device is disposed along an outer peripheral side of the U-shaped track and along a lateral track portion,
Each of the work stations includes a core transfer carriage that moves along a track while holding the rigid core, and each core transfer carriage sequentially receives the rigid core between adjacent core transfer carriages. By passing, the rigid core can be moved from the start end position of the track to the end position through one of the horizontal track portions, the vertical track portion, and the other horizontal track portion,
The material storage zone is arranged adjacent to one side in the lateral direction of the U-shaped track, and a member material used by the member assembly device or an intermediate material for forming the member material is attached to each member assembly. Store it in supply for the equipment,
The vulcanization zone is disposed adjacent to the other side in the lateral direction of the U-shaped track,
And the said inspection carry-out zone is arrange | positioned adjacent to the other horizontal direction side of the said vulcanization zone, The tire manufacturing system characterized by the above-mentioned.
The tire manufacturing system according to claim 1 , wherein the track is formed by a pair of rails parallel to each other .
The tire component is divided into a rubber member including a tread rubber and a sidewall rubber, a cord ply member including a carcass ply and a belt ply, and a wire member including a bead core.
As a material for the rubber member, a long tape-shaped rubber strip is used,
As a member material of the cord ply member, a long tape-like cord strip in which an array of tire cords aligned in the length direction is covered with a topping rubber is used.
3. The tire manufacturing system according to claim 1, wherein a rubberized wire is used as a member material of the wire member. The tire manufacturing system according to any one of claims 1 to 3, wherein the horizontal track portion and the vertical track portion are each formed in a straight line and are orthogonal to each other. The tire manufacturing system according to any one of claims 1 to 4, wherein the U-shaped track has a discontinuity between the horizontal track portion and the vertical track portion.

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