JP2010105486A - Production management method in tire manufacturing process, system of the same, and method of manufacturing tire - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a production management method in a tire manufacturing process reducing defectives after vulcanization, a system of the same, and a method of manufacturing a pneumatic tire. <P>SOLUTION: A uniformity inspection result of a vulcanization-molded tire T is stored in a server 100 corresponding to the tire type information of an adhesion type indication member LA. The uniformity inspection results of a plurality of tires T0 stored in the server 100 are tabulated for the respective tire types. When the number ratio of the tire T which satisfies a standard in the tabulation result of, e.g., a tire type "K5555" of the tire types is equal to or less than a predetermined value, the unvulcanized tire T0 of the tire type "K5555" is not newly molded or newly vulcanization-molded. Hence, the defectives are reduced after vulcanization. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a production management method, a system thereof, and a method for manufacturing a pneumatic tire, for example, in a manufacturing process of a pneumatic tire for an automobile or a pneumatic tire for an aircraft.

In general, as a production management method for this type of tire, an adhesive display member having identification information for identifying each tire is attached to an unvulcanized tire, and an inner liner member, a carcass member, a tread member, etc. The inspection result of the rubber material forming the tire constituent member is stored in a storage device in association with the identification information (see, for example, Patent Document 1).
Japanese Patent Laid-Open No. 10-307865

  By the way, in the production management method, the identification information of the sticking type display member can be read even in the tire after vulcanization molding, and the rubber material that forms the tire constituent member such as the inner liner member, the carcass member, and the tread member is inspected. Since the result is stored in the storage device so as to correspond to the identification information, in the case of an aircraft pneumatic tire in which the tread portion is regenerated after a predetermined number of takeoffs and landings, it is stored in the storage device. An optimal rubber material for rehabilitation of the tread portion can be selected using the inspection result of the rubber material.

  On the other hand, in recent years, there has been a strong demand for reduction of defective products generated in tire manufacturing processes due to demands for reduction of industrial waste, resource saving and energy saving. In particular, since vulcanized rubber is difficult to reuse and dispose of, it is desired to reduce defective products found after vulcanization.

  The present invention has been made in view of the above-mentioned problems, and its object is to provide a production management method in a tire manufacturing process capable of reducing defective products after vulcanization, a system therefor, and a pneumatic tire manufacturing method. Is to provide.

  In order to achieve the above object, the present invention provides a production management method in a tire manufacturing process for manufacturing a tire by performing vulcanization molding after pasting a pasting type display member having tire type information to an unvulcanized tire. And a step of inspecting the tire after the vulcanization molding, and storing the result of the inspection in the storage means in association with the tire type information of the sticking type display member, and a plurality of tires stored in the storage means The inspection results are aggregated for each tire type, and if the percentage of tires that meet the standard in the aggregation result for any tire type is less than or equal to the predetermined percentage, the tire type is not added. A new molding and / or a new vulcanization molding of the vulcanized tire is not performed.

  Further, the present invention is a production management system in a tire manufacturing process for manufacturing a tire by performing vulcanization molding after pasting a pasting type display member having tire type information to an unvulcanized tire, the vulcanization molding Storage means capable of storing the inspection results of the subsequent tires in correspondence with the tire type information of the sticking type display member, and the inspection results of the plurality of tires stored in the storage means are aggregated for each tire type, and each tire type When the number ratio of tires that meet the criteria in any of the tire type results is less than or equal to a predetermined ratio, new molding or new vulcanization molding of the unvulcanized tire of that tire type is performed. An unvulcanized tire molding machine and / or a molding stop control means for controlling the vulcanizer are provided so as not to perform this.

  Further, the tire manufacturing method of the present invention comprises a pasting type display member having tire type information on a molded unvulcanized tire by sequentially molding a plurality of unvulcanized tires by a predetermined unvulcanized tire molding machine. A step of pasting, a step of vulcanizing and molding the unvulcanized tire to which the pasting type display member is pasted, and an inspection of the tire after the vulcanization molding, and the inspection result as tire type information of the pasting type display member A plurality of tire inspection results stored in the storage means for each tire type, and a reference is set in the total result for any tire type among the tire types. When the ratio of the number of filled parts is equal to or less than a predetermined ratio, new molding and / or new vulcanization molding of the unvulcanized tire of the tire type is not performed.

  As a result, the inspection result of the tire after vulcanization molding is stored in the storage means in association with the tire type information of the sticking type display member, and the inspection results of the plurality of tires stored in the storage means are tabulated for each tire type. When the ratio of the number of tires satisfying the standard in the aggregate result of any tire type is less than or equal to a predetermined ratio, a new molding of unvulcanized tires of the tire type and / or Alternatively, since new vulcanization molding is not performed, defective products after vulcanization can be reduced.

  According to the present invention, it is possible to reduce defective products after vulcanization, and it is also possible to make corrections before the vulcanization, and it is possible to reduce defective products before vulcanization. It is extremely advantageous in achieving reduction of industrial waste, resource saving and energy saving.

  1 to 7 show an embodiment of the present invention. FIG. 1 is a schematic view of a tire manufacturing process, FIG. 2 is a schematic front view of an adhesive display member, and FIG. 3 is a connection state between each terminal and a server. 4 is an example of a data table, FIG. 5 is a partial schematic diagram of a tire manufacturing process, FIG. 6 is a flowchart showing the operation of the control unit of the server, and FIG. 7 is an example of a UF data table.

  This tire production management system is provided in a tire manufacturing process, for example, as shown in the schematic diagram of FIG. The tire manufacturing process of FIG. 1 includes a raw material receiving process P1 for receiving and inspecting raw materials such as rubber materials, reinforcing cords, and wires, an inner liner member B1, a sidewall member B2, a carcass member B3, a belt member B4, and a tread member. B5, bead member B6 and other members constituting the tire are molded and inspected, and a non-vulcanized tire T0 is molded using a plurality of members constituting the tire and molded unvulcanized An unvulcanized tire molding step P3 for affixing the affixing display member LA to the tire T0, an unvulcanized tire appearance inspection step P4 for inspecting the appearance of the unvulcanized tire T0 affixed with the affixing display member LA, A vulcanization step P5 for vulcanizing the unvulcanized tire T0 that has passed the vulcanized tire appearance inspection step P4, and a primary appearance inspection work for inspecting the appearance of the tire T after vulcanization molding P6, finishing process P7 for finishing tire T that has passed primary appearance inspection process P6, uniformity inspection process P8 for performing uniformity inspection of tire T that has passed finishing process P7, and passing through uniformity inspection process P8 The secondary appearance inspection process P9 for performing an appearance inspection of the tire T, and the tire T that has passed each inspection after the secondary appearance inspection process P9 is transported toward the shipping storage location and stored in the shipping storage location. Carrying and storing step P10. These tires are pneumatic tires for automobiles and aircraft including trucks, buses, construction vehicles, and the like.

  A first terminal 1 comprising a known computer is provided in the raw material receiving process P1, and the inspection result of each received raw material is input to the first terminal 1 so as to correspond to, for example, the raw material production lot number. Yes.

  The member forming process P2 is provided with a second terminal 2 composed of a well-known computer, and the inspection result of each member is input to the second terminal 2 so as to correspond to, for example, the manufacturing lot number of the member.

  In the unvulcanized tire molding step P3, a third terminal 3 composed of a well-known computer is provided, and the third terminal 3 controls the first molding drum 21 and the second molding drum 22. For example, in the first molding drum 21, the outer unvulcanized tire GT1 is molded from the belt member B4 and the tread member B5, and in the second molding drum 22, the inner unfinished tire from the inner liner member B1, the sidewall member B2, and the carcass member B3. The vulcanized tire GT2 is molded, and subsequently, the inner unvulcanized tire GT2 and the outer unvulcanized tire GT1 to which the bead member B6 is attached are laminated to form the unvulcanized tire T0. . That is, each molding drum 21 and 22 functions as a molding machine for molding the unvulcanized tire T0.

  In addition, in the unvulcanized tire molding step P3, the pasting type display member LA is pasted on, for example, a bead portion on one side in the width direction of the molded unvulcanized tire T0 by an operator or a labeling machine. Yes. As shown in FIG. 2, the surface of the sticking type display member LA has information on the tire type (type and size of the tire) of the tire to which the sticking type display member LA is stuck and is given to each tire. Two QR codes Q having serial number information are displayed. Here, the serial number is identification information given to each tire. The QR code Q is composed of a known two-dimensional code, and the tire type (for example, “K5555”) and the serial number (for example, “01K01”) are printed on the surface of the sticking type display member LA.

  The third terminal 3 is connected to a QR code reader 3a. When the unvulcanized tire T0 is molded and the pasting type display member LA is pasted, the information of the tire type and serial number of the molded unvulcanized tire T0 is read by the QR code reader 3a and is sent to the third terminal 3. The third terminal 3 also stores the serial number of the molding machine used for molding the unvulcanized tire T0, molding conditions, molding date and time, and the production lot number of each member used for molding the unvulcanized tire T0. Is done. Here, reading of the sticking type display member LA by the QR code reader 3a is performed automatically or manually.

  The uncured tire appearance inspection process P4 is provided with a fourth terminal 4 composed of a well-known computer, and a QR code reader 4a is connected to the fourth terminal 4. Further, a pass two-dimensional code 4b and a fail two-dimensional code 4c are displayed at predetermined positions in the unvulcanized tire appearance inspection step P4. In the unvulcanized tire appearance inspection step P4 of the present embodiment, for example, the inspector IP inspects the appearance of the unvulcanized tire T0. Further, after the information on the tire type and serial number of the unvulcanized tire T0 that has been inspected is read by the QR code reader 4a, the passed two-dimensional code 4b is read by the QR code reader 4a. The appearance inspection result of T0 is stored in the fourth terminal 4 as being acceptable, and after the information of the tire type and serial number of the uncured tire T0 that has been inspected is read by the QR code reader 4a, the rejected two-dimensional When the code 4c is read by the QR code reader 4a, the appearance inspection result of the unvulcanized tire T0 is stored in the fourth terminal 4 as being rejected. Here, reading of the sticking type display member LA by the QR code reader 4a is performed automatically or manually, and reading of the two-dimensional codes 4b and 4c by the QR code reader 4a is performed manually.

  In the vulcanization process P5, a plurality of (four in this embodiment) vulcanizers 30 are provided, and each vulcanizer 30 is provided with a fifth terminal 5, a sixth terminal 6, and a seventh, each composed of a known computer. A terminal and an eighth terminal 8 are connected. Each vulcanizer 30 is controlled by each terminal 5, 6, 7, 8, and each terminal 5, 6, 7, 8 is for vulcanization mounted on each vulcanizer 30. The serial number of the mold is entered. Each of the terminals 5, 6, 7 and 8 is connected to a QR code reader 5a, 6a, 7a and 8a. The QR code readers 5a, 6a, 7a and 8a are used for vulcanization of each vulcanizer 30. Before the unvulcanized tire T0 is inserted into the mold, the tire type and serial number information is read from the affixing type display member LA affixed to the unvulcanized tire T0. Further, when the vulcanization molding is completed, the vulcanization conditions of the tire T, the serial number of the vulcanizer 30 used, the vulcanization date and time, and the serial number of the vulcanization mold are the tire type and serial number of the tire T. Correspondingly, each terminal 5, 6, 7, 8 is stored.

  In the primary appearance inspection process P6, a ninth terminal 9 made of a known computer is provided, and a QR code reader 9a is connected to the ninth terminal 9. A pass two-dimensional code 9b and a fail two-dimensional code 9c are displayed at predetermined positions in the primary appearance inspection process P6. In the primary appearance inspection step P6 of the present embodiment, for example, the inspector IP inspects the appearance of the tire T. Further, when the passed two-dimensional code 9b is read by the QR code reader 9a after the tire type and serial number information of the inspected tire T is read by the QR code reader 9a, the primary appearance inspection result of the tire T is read. Is stored in the ninth terminal 9 as being passed, and after the tire type and serial number information of the inspected tire T is read by the QR code reader 9a, the rejected two-dimensional code 9c is read by the QR code reader 9a. When read, the primary appearance inspection result of the tire T is stored in the ninth terminal 9 as being unacceptable. Here, reading of the sticking type display member LA by the QR code reader 9a is performed automatically or manually, and reading of the two-dimensional codes 9b and 9c by the QR code reader 9a is performed manually.

  In the finishing process P7, a tenth terminal 10 composed of a well-known computer and a finishing stand 40 for the operator OP to perform rubber deburring work are provided, and a QR code reader 10a is connected to the tenth terminal 10. . Further, the operator OP and the tenth terminal 10 read the tire type and serial number information of the finished tire T by the QR code reader 10a, and input the result of the finishing process P7 and the like to the tenth terminal 10. It has become. As a result, the result of the finishing step P7 of the tire T is stored in the tenth terminal 10.

  In the uniformity inspection process P8, a plurality of (three in the present embodiment) uniformity inspection machines 50 are provided, and each of the uniformity inspection machines 50 includes an eleventh terminal 11 and a twelfth terminal 12 each formed of a known computer. And the thirteenth terminal 13 is connected. Each uniformity inspection machine 50 can inspect the uniformity (RFV, LFV, etc.) and dynamic balance (DB) of the tire T, and each uniformity inspection machine 50 is controlled by each terminal 11, 12, 13 respectively. It has become so. Further, QR code readers 11a, 12a, and 13a are connected to the terminals 11, 12, and 13, respectively, and the QR code readers 11a, 12a, and 13a are connected when the tires T are attached to the uniformity inspection machines 50, respectively. The tire type and serial number information is read from the sticking type display member LA attached to the tire T. Further, when the uniformity inspection is completed, each terminal 11, 12, 13 is set so that the serial number of the uniformity inspection machine 50 that has been inspected and the inspection result of the uniformity inspection correspond to the tire type and serial number of the tire T. Is automatically memorized.

  The secondary appearance inspection process P9 and the transport and storage process P10 are provided with a 14th terminal 14 and a 15th terminal 15 made of known computers, and QR codes readers 14a and 15a are connected to the terminals 14 and 15, respectively. . In addition, a pass two-dimensional code 14b and a fail two-dimensional code 14c are displayed at predetermined positions in the secondary appearance inspection step P9.

  Further, in the secondary appearance inspection step P9 of the present embodiment, for example, the inspector IP inspects the appearance of the tire T. Further, after the tire type and serial number information of the inspected tire T is read by the QR code reader 14a, the secondary appearance inspection of the tire T is performed when the passed two-dimensional code 14b is read by the QR code reader 14a. The result is stored in the 14th terminal 14 as being acceptable, and after the information of the tire type and serial number of the inspected tire T is read by the QR code reader 14a, the rejected two-dimensional code 14c is returned to the QR code reader 14a. , The secondary appearance inspection result of the tire T is stored in the 14th terminal 14 as being unacceptable. Here, reading of the sticking type display member LA by the QR code reader 14a is performed automatically or manually, and reading of the two-dimensional codes 14b and 14c by the QR code reader 14a is performed manually.

  Each terminal 1-15 is connected to the server 100 which consists of a known computer, and the information of each terminal 1-15 is put together in the server 100. FIG. Specifically, as shown in FIG. 4, the server 100 forms a data table in which each inspection result and condition is associated with the tire type and serial number of each tire T, and the data table is stored in the server 100. In addition, the server 100 is configured to be able to display the data table. In FIG. 4, only the production lot numbers of the members B1 to B6 such as the inner liner member B1 are displayed and the inspection results of the members B1 to B6 are not shown, but the inspections of the members B1 to B6 are not shown. It is also possible to add the results to the data table. Moreover, it is also possible to add the inspection result of the raw material of each member B1-B6.

  In addition, only when the inspection results of the uncured tire appearance inspection result, the primary appearance inspection result, the uniformity inspection result, and the secondary appearance inspection result all satisfy the standard (in this embodiment, all are acceptable). The overall determination is passed, and the tire T that has passed the overall determination is conveyed toward the shipping storage location.

  Further, the fifteenth terminal 15 manages the loading and unloading of the tire T by reading the sticking type display member LA of the tire T to be loaded and unloaded.

  Here, the unvulcanized tire molding process P3 to the uniformity inspection process P8 will be described in more detail.

  The unvulcanized tire forming step P3 of the present embodiment includes a plurality of unvulcanized tires T0 (in the present embodiment, three types of “K5555”, “K6666”, and “K7777”) (60 in this embodiment). Are molded sequentially one by one. Further, for example, when the unvulcanized tire T0 of “K5555” is molded, the uncured tire T0 of the molded “K5555” is sequentially inspected in the uncured tire appearance inspection step P4 and vulcanized. In step P5, vulcanization is sequentially performed. In the vulcanization step P5, as shown in FIG. 5, for example, an unvulcanized tire T0 of “K5555” is vulcanized and molded using two vulcanizers 30 and unvulcanized tires of “K6666” and “K7777”. T0 is vulcanized using one vulcanizer 30 each.

  In addition, the vulcanized tire “K5555” of the tire T is sequentially inspected in the primary appearance inspection process P6, and the rubber burrs are sequentially removed in the finishing process P7, and the uniformity and dynamic balance are sequentially detected in the uniformity inspection process P8. Inspection is performed. In the uniformity inspection step P8, for example, as shown in FIG. 5, the tire T of “K5555” is inspected using two uniformity inspection machines 50, and the tire T of “K6666” and “K7777” is one uniformity. Inspected using the inspection machine 50.

  As described above, the plurality of types of unvulcanized tires T0 are sequentially molded in the unvulcanized tire molding step P3 in order to improve the production efficiency in the multi-product low-volume production and require a long time. This is to improve the production efficiency of the unvulcanized tire molding process, which requires a shorter molding time than the vulcanization process P5, and to save space in the entire manufacturing process.

  Here, the inspection result of the uniformity inspection machine 50 is stored in each terminal 11, 12, 13 and also in the server 100 as described above. Further, the server 100 performs the following processing. The following description will be made with reference to the flowchart of FIG. 6 showing the operation of the control unit of the server 100. In the following, the tire T of “K5555” will be described, but the same processing can be performed for the tire T0 of “K6666” and “K7777”.

  First, when a uniformity test result of “K5555” is newly obtained from the terminals 11, 12, and 13 (S1), the test result is sequentially added to a UF data table (see FIG. 7) corresponding to each tire type. (S2). In addition, the latest 20 of the uniformity test results for the tire type “K5555” are tabulated for each molding machine serial number and vulcanizer serial number (S3), and the tire T that satisfies the criteria in the tabulation result (this implementation) In the embodiment, the number ratio (non-defective product ratio) of tires T) in which RFV or LFV has failed is added to the UF data table (S4). FIG. 4 shows the result of totalizing the uniformity test results for each vulcanizer serial number as an example. In addition, when the ratio of the number of tires T satisfying the standard in the tabulated result becomes a predetermined ratio (for example, 90%) or less (S5), a new unvulcanized tire T0 of the tire type “K5555” is formed. In addition to controlling the molding drums 21 and 22 via the terminal 3 (S6), the terminals 5, 6, 7, and 8 are set not to perform new vulcanization molding of the tire type “K5555”. The respective vulcanizers 30 are controlled through (S7).

  Thus, according to this embodiment, the uniformity inspection result of the tire T after vulcanization molding is stored in the server 100 in association with the tire type information of the pasting type display member LA, and stored in the server 100. The uniformity test results of a plurality of tires T0 are tabulated for each tire type, and for example, among the tire types, the ratio of the number of tires T satisfying the standard in the tabulation result of the tire type “K5555” is equal to or less than a predetermined ratio. In this case, since new molding and new vulcanization molding of the unvulcanized tire T0 of the tire type “K5555” are not performed, defective products after vulcanization can be reduced, and industrial waste can be reduced. It is extremely advantageous in achieving resource saving and energy saving.

  In addition, since the uniformity inspection result of each tire T is stored in the server 100 in correspondence with the tire type information and serial number of the sticking type display member LA, the uniformity inspection of the same tire T is performed a plurality of times. Even if there are a plurality of uniformity test results for the tire T, for example, by using only the latest uniformity test results for the tabulation, the accuracy of the tabulation results can be improved.

  Further, the uniformity inspection result of each tire T is used for the aggregation. Here, the uniformity inspection is to inspect the circumferential characteristics of the tire T, and the circumferential characteristics of the tire T have a great influence on the running performance, so it is suitable for the determination of defective products. It is extremely advantageous to reliably achieve the above-mentioned effects. For example, if a concave portion is formed in the side portion of the vulcanized tire T, the concave portion often has a great influence on the uniformity test result, and the concave portion has a large driving performance. Influence.

  Further, since the concave portion is formed due to the insufficient amount of splice of the side wall member B2 at the time of molding the unvulcanized tire T0, after preventing the new vulcanization molding from being performed as described above, By checking and correcting the splice amount of the unvulcanized tire T0 of the tire type “K5555”, a non-defective product can be formed using the unvulcanized tire T0. That is, it is possible to save the trouble of remolding the unvulcanized tire T0, to improve the production efficiency, and to reduce the energy consumption for remolding.

  Further, for example, after the molding of the unvulcanized tire T0 of the tire type “K5555” is not newly performed, the molding conditions of the unvulcanized tire T0 of the tire type “K5555” are adjusted, so that It is possible to mold the unvulcanized tire T0 of the tire type “K5555” so that the concave portion is not formed, so that the production efficiency can be improved, and industrial waste is reduced, resources are saved, and energy is saved. Can be achieved.

  In the present embodiment, the latest 20 of the uniformity inspection results are counted for each molding machine serial number or vulcanizer serial number, but the molding lot of the unvulcanized tire T0 is the same. It is possible to aggregate more than one uniformity test result, and it is possible to perform aggregation by other methods, and even in these cases, the same effect as described above can be achieved.

  In the present embodiment, the uniformity inspection results are aggregated for each molding machine serial number and vulcanizer serial number. However, the uniformity inspection results are not divided into molding machine serial numbers and vulcanizer serial numbers. In this case, the same effects as described above can be achieved.

  Further, in the present embodiment, the uniformity inspection results are shown, but primary appearance inspection, secondary appearance inspection, dynamic balance inspection results, etc. can be used instead of the uniformity inspection results. Even in these cases, the same effect as described above can be achieved.

  In the present embodiment, the uniformity test result is shown as pass or fail. However, the RFV or LFV value can be used as the uniformity test result, and a specific value can be used as a reference. Even in this case, the same effect as described above can be achieved.

  Further, in the present embodiment, the tire type “K5555” is not set when the ratio of the number of tires T satisfying the standard in the total result of the tire type “K5555” among the tire types is equal to or less than a predetermined rate. A new molding and a new vulcanization molding of the vulcanized tire T0 are not performed. On the other hand, for example, when the ratio of the number of tires T satisfying the standard in the aggregated result of the tire type “K5555” among the tire types is equal to or less than a predetermined ratio, the unvulcanized tire of the tire type “K5555”. It is possible not to perform only new molding of T0, and it is also possible not to perform only new vulcanization molding of the tire type “K5555”. The effect can be achieved.

Schematic of the manufacturing process of a pneumatic tire showing an embodiment of the present invention Schematic front view of sticky display member Schematic diagram showing the connection status between each terminal and server Example of data table Partial schematic diagram of tire manufacturing process A flowchart showing the operation of the control unit of the server Example of UF data table

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1-15 ... Terminal, 21 ... 1st shaping | molding drum, 22 ... 2nd shaping | molding drum, 30 ... Vulcanizer, 40 ... Finishing stand, 50 ... Uniformity inspection machine, 100 ... Server, T0 ... Unvulcanized tire, T ... tire, P1 ... raw material receiving process, P2 ... member molding process, P3 ... unvulcanized tire molding process, P4 ... unvulcanized tire appearance inspection process, P5 ... vulcanization process, P6 ... primary appearance inspection process, P7 ... finishing Process, P8 ... Uniformity inspection process, P9 ... Secondary appearance inspection process, P10 ... Transport and storage process.

Claims (6)

A production management method in a tire manufacturing process of manufacturing a tire by performing vulcanization molding after pasting a pasting type display member having tire type information to an unvulcanized tire,
Inspecting the tire after the vulcanization molding, and including the step of storing the inspection result in the storage means in association with the tire type information of the pasting type display member,
The inspection results of a plurality of tires stored in the storage means are aggregated for each tire type, and the ratio of the number of tires satisfying the standard in the aggregation result of any tire type among the tire types is equal to or less than a predetermined ratio In such a case, a new production method and / or a new vulcanization molding of an unvulcanized tire of the tire type is not performed. The production control method in the tire manufacturing process according to claim 1, wherein a uniformity inspection result is used as the tire inspection result to be aggregated. A production management system in a tire manufacturing process for manufacturing a tire by performing vulcanization molding after pasting a pasting type display member having tire type information on an unvulcanized tire,
Storage means capable of storing the tire inspection result after the vulcanization molding in correspondence with the tire type information of the sticking type display member;
The inspection results of a plurality of tires stored in the storage means are aggregated for each tire type, and the proportion of the number of tires satisfying the standard in the aggregation result of any tire type of each tire type is equal to or less than a predetermined proportion A non-vulcanized tire molding machine and / or a molding stop control means for controlling the vulcanizer so as not to perform new molding or new vulcanization molding of the unvulcanized tire of that tire type. A production management system in the tire manufacturing process. The production management system in the tire manufacturing process according to claim 3, wherein a uniformity inspection result is used as the tire inspection result to be aggregated. A step of sequentially molding a plurality of unvulcanized tires by a predetermined unvulcanized tire molding machine, and affixing a pasting type display member having tire type information to the molded unvulcanized tire;
A step of vulcanizing and molding the unvulcanized tire to which the pasting type display member is pasted,
Including inspecting the tire after vulcanization molding and storing the inspection result in the storage means in correspondence with the tire type information of the sticking type display member,
The inspection results of a plurality of tires stored in the storage means are aggregated for each tire type, and the proportion of the number satisfying the standard in the aggregation result of any tire type among the respective tire types is less than a predetermined proportion In this case, the tire manufacturing method is characterized in that a new molding and / or a new vulcanization molding of an unvulcanized tire of the tire type is not performed. The tire manufacturing method according to claim 5, wherein a uniformity inspection result is used as the tire inspection result to be aggregated.

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