WO2004048061A1 - タイヤ加硫のサイズ割付方法およびタイヤの製造方法、ならびに加硫プロセスの設定方法 - Google Patents
タイヤ加硫のサイズ割付方法およびタイヤの製造方法、ならびに加硫プロセスの設定方法 Download PDFInfo
- Publication number
- WO2004048061A1 WO2004048061A1 PCT/JP2003/015041 JP0315041W WO2004048061A1 WO 2004048061 A1 WO2004048061 A1 WO 2004048061A1 JP 0315041 W JP0315041 W JP 0315041W WO 2004048061 A1 WO2004048061 A1 WO 2004048061A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- vulcanization
- time
- tire
- size
- sizes
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D30/00—Producing pneumatic or solid tyres or parts thereof
- B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
- B29D30/0601—Vulcanising tyres; Vulcanising presses for tyres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D30/00—Producing pneumatic or solid tyres or parts thereof
- B29D30/005—General arrangement or lay-out of plants for the processing of tyres or parts thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
- B29C2037/80—Identifying, e.g. coding, dating, marking, numbering
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D30/00—Producing pneumatic or solid tyres or parts thereof
- B29D30/005—General arrangement or lay-out of plants for the processing of tyres or parts thereof
- B29D2030/0055—Optimization of the cycle times of the tyre manufacturing process, e.g. adaptation of the tyre building process to the vulcanization process
Definitions
- the present invention relates to a method for sizing a tire when vulcanizing the tire, a method for manufacturing the tire, and a method for setting a vulcanization process.
- vulcanization systems that vulcanize multiple sizes have conventionally used multiple vulcanizers to vulcanize tires with the shortest vulcanization time for each size. ing.
- the vulcanization time is different and the tact time is different for each vulcanizer.
- a huge intermediate inventory space for daline tires had to be provided between the tire molding system and the tire vulcanization system in order to prevent the out-of-stock of green tires, which was a problem.
- the present invention has been made in view of such a problem, and even when a plurality of tires of different sizes are mixed, the tact time is constant and the green tires are efficiently manufactured without requiring an intermediate stock. It is an object of the present invention to provide a method for sizing a tire vulcanizable, a method for producing a tire, and a method for setting a vulcanization process, which can be vulcanized in a wide range. Disclosure of the invention
- the present invention has been made to achieve the above object, and the gist and configuration thereof will be described below.
- the present invention provides a method of allocating the size of a tire to be vulcanized to each vulcanization station of a vulcanization system having a plurality of vulcanization stations and vulcanizing tires of a predetermined group of sizes.
- the tire is vulcanized in a synchronized tact time with the tact time constant.
- any one of the size assignments has a different size in at least two vulcanization stations, so that a plurality of sizes can be mixed and vulcanized.
- a unified vulcanization time as a standard vulcanization time capable of realizing the tact time for each tact time, and vulcanize at the unified vulcanization time.
- the tire size is not more than T p represented by the formula (A).
- the tire size that can be vulcanized in the vulcanization time of This is a method for allocating the size of tire vulcanization included in the group corresponding to the tact time.
- Tp TTxN- t (A) where TT, ⁇ , and t represent the following, respectively.
- N Number of vulcanization stations in this vulcanization system
- t The sum of the time required to load the tire of the target size into the vulcanization station and the time required to discharge the tire from the vulcanization station.
- the tire is vulcanized with a vulcanization time of Tp or less represented by the formula (A). If the tire size is acceptable, it will be included in the same group so that more tires can be produced in a shorter cycle time.
- the present invention provides the method according to ⁇ 1> or ⁇ 2>, wherein the group is a tire vulcanizing method including at least two sizes having different vulcanizing temperatures.
- one group includes sizes having different vulcanization temperatures from each other, more sizes can be combined into one group, and multi-size mixed flows can be efficiently produced.
- the present invention is the tire vulcanizing size allocation method according to any one of ⁇ 1> to ⁇ 3>, wherein the group size is classified into 2 to 6 groups.
- the number of groups is 2 to 6, efficient vulcanization If the number of groups is one, the size range of the vulcanization system must be reduced, which reduces the system's ability to handle the size. When the number exceeds 6, the number of switching between groups increases, and the loss due to the system stoppage during the switching cannot be ignored.
- the present invention relates to a tire manufacturing method for vulcanizing a tire based on the tire vulcanizing size allocation method according to any one of ⁇ 1> to ⁇ 4>, which corresponds to each size allocation. This is a method for producing a tire in which the tire is vulcanized in a short cycle time.
- the tire is vulcanized with a fixed tact time based on the size allocation method described above. Therefore, even in the case where a plurality of sizes are mixed, the tire is vulcanized in synchronization with the tire molding process. Vulcanization reduces the intermediate stock of green tires.
- the present invention provides the method for producing a tire according to ⁇ 5>, wherein the tire is molded with the same tact time as the predetermined tact time for vulcanizing the tire with a vulcanization system.
- the tact time of the vulcanizing system and the molding system are the same, so that the intermediate stock of green tires can be suppressed.
- ⁇ 7> when setting the vulcanization process of a tire to be produced by the manufacturing method described in ⁇ 5> or ⁇ 6>, first set a vulcanization time, and then, based on the vulcanization time, This is a setting method of the vulcanization process in which the vulcanization temperature is set by using the following method.
- the vulcanization time since the vulcanization time is set first, the vulcanization time can be set so that the same tact time can be dealt with for many sizes, and the size can be assigned to many different sizes. In addition, multi-size mixed production can be performed efficiently.
- Figure 1 is a diagram showing an example of size assignment.
- Figure 2 is a time chart of a vulcanization system corresponding to a certain assignment.
- size allocation refers to the arrangement or arrangement of tire sizes to be vulcanized at each vulcanization station when making a production plan.
- vulcanization time refers to the time from when the vulcanization mold containing the unvulcanized evening is closed to when the vulcanization mold is opened.
- the vulcanization process defines vulcanization conditions such as vulcanization time, vulcanization temperature, pressure in the bladder and applicable molds when producing tires of a certain size.
- the “vulcanization temperature” refers to the highest set temperature of the heating device for vulcanizing the tire specified in the vulcanization process
- the set temperature of the heating device refers to the heating temperature. If the device is an electric heater, etc., it is the set temperature, and if the heating device is to heat by flowing a heating fluid through a platen, etc., it means the setting temperature of the heating fluid.
- the vulcanization system exemplified in the following description includes four vulcanization stations and one mold opening / closing station.
- each vulcanization station is vulcanized.
- the mold removed from the vulcanization station is opened, the vulcanized tire is removed from the mold, the unvulcanized tire is transferred to the mold, the mold is closed, and then the mold is vulcanized.
- the operation of returning to the station shall be repeated.
- Table 1 exemplifies the group sizes targeted by this vulcanization system for each group.
- the group sizes vulcanized by this system are classified into three groups FA, FB and FC.
- Groups are multiple Be composed of different sizes of a few, for example, the group FA size FA FA 2, ... -, FA nl, and, FAX FAX 2, ... -, the FA X ml (nl + ml) is than pieces of size I have.
- the vulcanization time of the size of FAi to FA nl is a minute, and the vulcanization time of the size of FAXi FAXm exceeds a minute.
- at least the vulcanization temperature is different from that of FA nl, and the above-mentioned sizes are arranged in order of the vulcanization temperature from F Ai to F AX ml .
- FBFB have FB 2, ⁇ '-, FB n 2, FBX 1 3 ⁇ 4 ⁇ • ⁇ , FB X m 2
- the vulcanization time corresponding to FB i ⁇ FB n 2 is b minutes
- the vulcanization time in the size of FBXi F BX m2 exceeds b component
- vulcanization time Saizu of F CX 1 ⁇ FCX m3 is Ru ultra tut the c component.
- these sizes are arranged in ascending order of vulcanization temperature.
- the shortest vulcanization time within a group will be referred to as the unified vulcanization time for each group.
- the unified vulcanization times for groups FA, FB, and FC are, in this order, a, b, and c, respectively.
- Each group is classified by including at least two kinds of sizes having the same vulcanization time and different vulcanization temperatures.
- size F and FA n the FA group, and is a a partial between the same vulcanization time, but the vulcanizing temperature of FA x is the FA n Lower than the vulcanization temperature.
- the vulcanization time at the same high vulcanization temperature as FA nl and a vulcanization time shorter than a minute is required in the conventional manufacturing method in which the vulcanization time is set to the shortest for each size. It was vulcanized based on the process.
- the degree of vulcanization that determines the quality of a tire depends on both the vulcanization time and the vulcanization temperature, and in a given temperature range there are countless combinations of these that give the same degree of vulcanization.
- the vulcanization time of this size is first determined, and then the vulcanization degree is determined from the optimum degree of vulcanization for a tire of this size.
- the vulcanization process of this size is set by obtaining the vulcanization temperature.By determining the vulcanization process in this way, the vulcanization time that used to be different for each size, As in the above example, it can be classified into three groups with their respective unified vulcanization times, whereby the size in the same group is harmed to each vulcanization station and the And a non-constant monkeys is possible to reduce the result intermediate stock.
- the procedure described above for grouping the group size into a plurality of groups is as follows. First, taking into account the production capacity of the tire molding process, the number of possible tact times that the vulcanizing system can take is set so that the tire can be vulcanized in synchronization with the tire molding process. Then, the tire size of the vulcanization time that can achieve each tact time is collected, and a group of sizes is grouped, which is a feature of the grouping in the present invention. If the time is short, more than one of these tact times can be realized, and therefore there are many possible grouping methods, but the following groupings are preferred.
- the unified vulcanization time described above is set as the standard vulcanization time that can realize this tact time. Then, in order from the group corresponding to the short tact time, the size for which the vulcanization time can be set to the unified vulcanization time corresponding to the tact time belongs to the group. At this time, even if the vulcanization time can be set longer than the corresponding unified vulcanization time for a certain tact time, if the vulcanization time has the vulcanization time that can realize the tact time, The size of the vulcanization time equal to or less than T p in the equation (A) of the above also belongs to the group corresponding to the tact time.
- FIG. 1 is a diagram illustrating the size allocation of four vulcanization stations of the vulcanization system.
- Assignment 1 to Assignment 150 assign the size of the group FA to each vulcanizing station, and assignments 151 and later assign the size of the group FB to each vulcanization station.
- FAFA 2 , FA 3 , and FAX ml are respectively allocated to vulcanization stations 1, 2, 3, and 4, but in allocation 2, the size of vulcanization station 2 is changed to FA 6 .
- allocation 3 the size of vulcanization station 3 is switched to FA 4 , and in this way, a new allocation is performed every time the size is switched in any of the stations.
- all sizes up to 150 are switched between sizes selected from the same FA group.
- assignment 151 the size of the group FB is assigned to all vulcanization stations, and then the sizes selected from the same FB group are switched.
- Figure 2 is a time chart showing the timing of operations performed in each vulcanization station of a vulcanization system to which a certain size has been assigned.
- Operation A1 is vulcanization of tire
- A2 is tire loading including transfer of unvulcanized tire to vulcanization mold and closing of mold
- A3 is mold opening and vulcanization tire mold
- A4 indicates no operation of the vulcanization station with no operation being performed at the vulcanization station.
- the vulcanization system is synchronized with the molding system and operated at a constant tact time TT determined from the molding tact time, that is, every tact time TT
- a constant tact time TT determined from the molding tact time, that is, every tact time TT
- the vulcanization time varies depending on the size, so that the cycle time CT of each vulcanization station could not be made constant.
- the cycle time CT can be made constant by allocating the sizes belonging to the same group to the stations. This will be described below. Assuming that the time chart in Fig. 2 corresponds to "assignment 1", in vulcanization station 1, vulcanization time T is used to vulcanize a tire of size FA with a unified vulcanization time a. it comes out to complete the operation of one cycle with a margin in cycle time CT since leaving time t a of the non-operation a 4 as shown.
- the size FAX m of the vulcanization time T is longer than the unified vulcanization time a minutes
- the size FAX ml, such FAi process between unity vulcanizing time of the FA Group
- the vulcanization system can be operated without breaking the fixed cycle time CT even if the vulcanization time is longer than the unified vulcanization time.
- Tact time TT multiplied by the number of vulcanization stations N, and the total time required for loading and unloading tires is subtracted from the value obtained by subtracting t i + t Tires with shorter vulcanization times are also included in the same group It is possible to combine a wider range of sizes into one group and cover a predetermined size range with a smaller group.
- the vulcanization time varies depending on the size, and when multiple sizes are assigned, vulcanization cannot be performed with a certain cycle time. For this reason, large intermediate stocks of green tires were required, but in the present invention, the sizes that can complete one cycle of operation within the same cycle time are grouped into one group, and the Since the sizes are assigned so that the sizes belong to the same group, vulcanization can be performed in a fixed cycle time, and the intermediate inventory can be reduced to almost zero by synchronizing this with the tire molding system. it can.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/536,195 US7440815B2 (en) | 2002-11-25 | 2003-11-25 | Vulcanized tire size allocating method, tire manufacturing method, and vulcanizing process setting method |
EP03774226A EP1584439B1 (en) | 2002-11-25 | 2003-11-25 | Vulcanized tire size allocating method, tire manufacturing method, and vulcanizing process setting method |
DE60316348T DE60316348T2 (de) | 2002-11-25 | 2003-11-25 | Verfahren zur grössenzuweisung für einen vulkanisierten reifen, reifenherstellungsverfahren und verfahren zur einstellung des vulkanisierungsvorgangs |
JP2004555038A JPWO2004048061A1 (ja) | 2002-11-25 | 2003-11-25 | タイヤ加硫のサイズ割付方法およびタイヤの製造方法、ならびに加硫プロセスの設定方法 |
AU2003284692A AU2003284692A1 (en) | 2002-11-25 | 2003-11-25 | Vulcanized tire size allocating method, tire manufacturing method, and vulcanizing process setting method |
MXPA05005542A MXPA05005542A (es) | 2002-11-25 | 2003-11-25 | Metodo de asignacion de tamano de neumatico vulcanizado, metodo de fabricacion de neumatico y metodo de establecimiento de proceso de vulcanizado. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002341212 | 2002-11-25 | ||
JP2002-341212 | 2002-11-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004048061A1 true WO2004048061A1 (ja) | 2004-06-10 |
Family
ID=32375844
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2003/015041 WO2004048061A1 (ja) | 2002-11-25 | 2003-11-25 | タイヤ加硫のサイズ割付方法およびタイヤの製造方法、ならびに加硫プロセスの設定方法 |
Country Status (7)
Country | Link |
---|---|
US (1) | US7440815B2 (ja) |
EP (1) | EP1584439B1 (ja) |
JP (1) | JPWO2004048061A1 (ja) |
AU (1) | AU2003284692A1 (ja) |
DE (1) | DE60316348T2 (ja) |
MX (1) | MXPA05005542A (ja) |
WO (1) | WO2004048061A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010173309A (ja) * | 2009-02-02 | 2010-08-12 | Bridgestone Corp | タイヤ成型命令割付順序決定方法、タイヤ成型命令割付順序出力装置、及び、タイヤ成型命令割付順序出力処理プログラム |
CN102514128A (zh) * | 2011-12-10 | 2012-06-27 | 三角轮胎股份有限公司 | 轮胎低能耗自动硫化方法 |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20130078058A1 (en) * | 2010-05-28 | 2013-03-28 | Maurizio Marchini | Method of controlling the management of forming drums in building tyres for vehicle wheels and plant for production of tyres for vehicle wheels |
RU2640762C2 (ru) * | 2012-10-26 | 2018-01-11 | Пирелли Тайр С.П.А. | Способ и установка для изготовления шин для колес транспортных средств |
MX2019005841A (es) * | 2016-11-30 | 2019-08-21 | Pireli Tyre S P A | Metodo, linea de curado unidad de procesamiento y unidad electronica asociada para controlar aparatos de curado para la produccion de neumaticos. |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS63209906A (ja) * | 1987-02-27 | 1988-08-31 | Bridgestone Corp | タイヤ製造装置の制御方法 |
WO2003013818A1 (fr) * | 2001-08-10 | 2003-02-20 | Bridgestone Corporation | Systeme de vulcanisation de pneus et son procede de fabrication de pneus |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS57178738A (en) * | 1981-04-28 | 1982-11-04 | Sumitomo Rubber Ind Ltd | Controlling method and apparatus for vulcanization of tire |
JPS5834733A (ja) * | 1981-08-25 | 1983-03-01 | Mazda Motor Corp | タイヤ組立ラインの制御方法 |
JPH03270835A (ja) * | 1990-03-22 | 1991-12-03 | Bridgestone Corp | 異サイズタイヤの混合生産方法 |
JP2547740Y2 (ja) * | 1991-12-27 | 1997-09-17 | 横浜ゴム株式会社 | 加硫機へのグリーンタイヤの供給装置 |
US5820885A (en) * | 1993-09-14 | 1998-10-13 | Mitsubishi, Jukogyo Kabushiki Kaisha | Tire vulcanizing system |
JP3219634B2 (ja) * | 1995-04-12 | 2001-10-15 | 三菱重工業株式会社 | タイヤ加硫設備 |
US6139668A (en) * | 1996-09-18 | 2000-10-31 | The Goodyear Tire & Rubber Company | Method and apparatus for simultaneously assembling a plurality of tires |
JP4115601B2 (ja) * | 1997-12-08 | 2008-07-09 | 株式会社ブリヂストン | 空気入りタイヤの生産システム及びこのシステムにおける生産設備 |
DE60012207T2 (de) * | 1999-10-29 | 2005-07-21 | Pirelli Pneumatici S.P.A. | Verfahren und vorrichtung zur herstellung von unterschiedlichen reifentypen |
WO2001039963A1 (en) * | 1999-12-01 | 2001-06-07 | Pirelli Pneumatici S.P.A. | Plant for producing tyres of different types simultaneously |
JP4623883B2 (ja) | 2001-08-15 | 2011-02-02 | 株式会社ブリヂストン | 加硫システム |
US20040238102A1 (en) * | 2003-05-30 | 2004-12-02 | Jean-Claude Girard | Method for manufacturing tires on a flexible manufacturing system |
US7195047B2 (en) * | 2003-12-11 | 2007-03-27 | The Goodyear Tire And Rubber Company | Tire manufacturing module and method of manufacturing tires |
-
2003
- 2003-11-25 MX MXPA05005542A patent/MXPA05005542A/es active IP Right Grant
- 2003-11-25 EP EP03774226A patent/EP1584439B1/en not_active Expired - Fee Related
- 2003-11-25 DE DE60316348T patent/DE60316348T2/de not_active Expired - Lifetime
- 2003-11-25 WO PCT/JP2003/015041 patent/WO2004048061A1/ja active IP Right Grant
- 2003-11-25 JP JP2004555038A patent/JPWO2004048061A1/ja active Pending
- 2003-11-25 US US10/536,195 patent/US7440815B2/en not_active Expired - Fee Related
- 2003-11-25 AU AU2003284692A patent/AU2003284692A1/en not_active Abandoned
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS63209906A (ja) * | 1987-02-27 | 1988-08-31 | Bridgestone Corp | タイヤ製造装置の制御方法 |
WO2003013818A1 (fr) * | 2001-08-10 | 2003-02-20 | Bridgestone Corporation | Systeme de vulcanisation de pneus et son procede de fabrication de pneus |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010173309A (ja) * | 2009-02-02 | 2010-08-12 | Bridgestone Corp | タイヤ成型命令割付順序決定方法、タイヤ成型命令割付順序出力装置、及び、タイヤ成型命令割付順序出力処理プログラム |
CN102514128A (zh) * | 2011-12-10 | 2012-06-27 | 三角轮胎股份有限公司 | 轮胎低能耗自动硫化方法 |
Also Published As
Publication number | Publication date |
---|---|
EP1584439A1 (en) | 2005-10-12 |
JPWO2004048061A1 (ja) | 2006-03-23 |
MXPA05005542A (es) | 2005-08-16 |
EP1584439A4 (en) | 2006-09-13 |
US20060036375A1 (en) | 2006-02-16 |
AU2003284692A1 (en) | 2004-06-18 |
DE60316348T2 (de) | 2008-06-12 |
US7440815B2 (en) | 2008-10-21 |
DE60316348D1 (de) | 2007-10-25 |
EP1584439B1 (en) | 2007-09-12 |
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