JP4660902B2

JP4660902B2 - Workpiece manufacturing management system

Info

Publication number: JP4660902B2
Application number: JP2000290333A
Authority: JP
Inventors: 則明竹谷; 賢彦斉藤; 雅大永井; 克人安倍; 勝藤広; 賢二和田
Original assignee: Toppan Inc
Current assignee: Toppan Inc
Priority date: 2000-09-20
Filing date: 2000-09-20
Publication date: 2011-03-30
Anticipated expiration: 2020-09-20
Also published as: JP2002096915A

Description

【０００１】
【発明の属する技術分野】
本発明は、材料の在庫を管理する在庫管理方法及び前記材料を用いて製造した加工物の製造条件管理方法、ならびにそれらを用いたゴム製造システムに関し、特に、ゴム製造工程で用いられる複数種類の材料の在庫管理及び混練条件の管理に適用して有効な技術に関するものである。
【０００２】
【従来の技術】
従来、ゴムは天然ゴム（ＮＲ）、イソプレンゴム（ＩＲ）、ブタジエンゴム（ＢＲ）のような一般用ゴムと、一般用ゴムでは得られない特殊な性能を持つ特殊ゴムとに大別される。前記特殊ゴムには、耐油性の高いニトリルゴム（ＮＢＲ）や多硫化ゴム（Ｔ）、耐熱性の高いエチレン−プロピレンゴム（ＥＰＤＭ）やフッ素ゴム（ＦＫＭ）などがある。
【０００３】
前記ゴムの製造工程は、繊維やプラスチックの製造工程とは異なり、原料ゴムを素練りと呼ばれる工程で加工して可塑化ゴムを形成した後、前記可塑化ゴムにステアリン酸等の促進剤、分散剤、カーボンブラックなどの着色剤、補強剤、加硫剤である硫黄、加硫促進剤、亜鉛華のような加硫促進助剤、酸化防止剤などを、経験的な配合割合に基づいて配合したのち、所定の条件で混練してゴム配合物を形成する。その後、前記ゴム配合物を成形した成形ゴムを加硫して、例えば、１４８℃で３０分間混練することによりゴム製品になる。優れた原料ゴムも、製造工程における配合設計、すなわち、前記軟化剤、加硫剤等の配合割合によって、最終的に得られるゴム製品と特性が変化する。また、同じ材料を同じ割合で配合した場合でも、混練時間の違いや混練時の温度等によっても、最終的に得られるゴム製品の特性が変化する場合がある。そのため、前記ゴム製造工程において材料の配合割合及び混練条件はゴム製品の特性を決めるのに非常に重要な要素であり、前記配合割合および混練条件により最終的に得られるゴム製品の品質が保証される。
【０００４】
前記従来のゴムの製造工程では、使用する材料の在庫量や前記配合割合、混練条件などの製造条件は、所定の管理項目からなる管理票に作業者が手書きで記入したり、紙製あるいはプラスチック製のカードにバーコード形式などで印刷しており、各工程において、前記カードに記録された情報をバーコードリーダー等の読取装置で読み取って確認していた。また、各材料の在庫量の管理、使用する材料の配合量の管理、混練工程等での作業条件の管理は、各工程別に行っている。
【０００５】
【発明が解決しようとする課題】
しかしながら、前記従来の技術では、ゴムの製造に使用する材料の在庫量や前記配合割合、混練条件などの製造条件は、バーコード形式などを用いて、カード表面に印刷している。そのため、製造中あるいは搬送中に生じる前記カード表面の汚れや傷等により、印刷されたバーコード情報の一部が欠落して、記録された在庫量、製造条件等を正確に読み取れないという問題があった。
【０００６】
また、前記バーコード形式などで材料の在庫管理をする場合、材料を保管容器から取り出すたびに前記保管容器内の残量が変わるため、そのたびに新しい残量に対応したバーコード情報を作成しなければならず、作業効率が悪いという問題があった。
【０００７】
また、所定の管理票等に作業者が手書きで記入する場合も、管理票の汚れや欠損等による管理情報の欠落や、記入ミス、記入漏れなどがおきやすく、材料の在庫量、製造条件等を正確に管理するのが難しいという問題があった。
【０００８】
また、使用する材料の配合割合の管理、作業条件の管理などを各工程別に独立して行っているため、ある作業条件で加工された加工物に用いられている材料の種類、入荷時期等が不明になったり、加工前の配合割合が不明確になりやすい。また、前記バーコード形式での管理では記録できる情報量が少ないため、直前の工程の作業条件しか記録されていない場合が多い。そのため、多くの種類の材料を用いて複雑な加工を行うゴム製品では品質の信頼性が不明確になりやすいという問題があった。これらの問題は、前記ゴム製品の製造工程にかかわらず、多くの種類の材料を用いる製品に共通してみられる問題である。
【０００９】
本発明の目的は、多くの種類の材料を用いる製品の製造工程において、各材料の在庫量を効率良く管理することが可能な技術を提供することにある。
【００１０】
本発明の他の目的は、多くの種類の材料を用いて複雑な加工を行う製品の製造工程において、各製造工程での製造条件を容易に管理することが可能な技術を提供することにある。
【００１１】
本発明の他の目的は、多くの種類の材料を用いて複雑な加工を行うゴム製造システムにおいて、各材料の在庫管理、製造条件を容易に管理することが可能な技術を提供することにある。
【００１２】
本発明の他の目的は、多くの種類の材料を用いて複雑な加工を行うゴム製造システムにおいて、各材料の在庫管理、製造条件の管理を一括して行うことが可能な技術を提供することにある。
【００１３】
本発明の前記ならびにその他の目的と新規な特徴は、本明細書の記述および添付図面によって明らかになるであろう。
【００１４】
【課題を解決するための手段】
本発明において開示される発明の概要を説明すれば、以下のとおりである。
【００１５】
（１）材料保管容器に種類別に保管された複数種類の材料の在庫を管理する材料の在庫管理方法において、前記材料保管容器に収納された材料の種類及び初期の収納量を記録手段に記録し、前記材料保管容器から材料を取り出す前に、前記記録手段から前記材料の種類を読み出して確認し、前記材料を取り出した後に、取り出し量及び前記初期の収納量から前記取り出し量を減じた残量を、前記記録手段に記録し、前記記録手段に記録された材料の種類及びその残量に基づいて前記材料保管容器に収納された材料の在庫を管理する在庫管理方法である。
【００１６】
（２）複数種類の材料を種類別に収納する材料保管容器から各材料を取り出して計量し、配合した配合物に含まれる材料の種類及び配合割合（配合量）を管理する製造条件管理方法において、計量した前記各材料を順次、前記搬送容器に投入して配合物を生成し、前記搬送容器に収納された前記配合物の種類及び配合割合を記録手段に記録し、前記搬送容器の搬送先で、前記記録手段から材料の種類及び配合割合を読み出して前記搬送容器で搬送された配合物に含まれる材料の種類及び配合割合を管理する製造条件管理方法である。
【００１７】
（３）複数種類の材料を所定の割合で配合した配合物を、加工装置により所定の条件で加工した加工物の加工条件を管理する製造条件管理方法において、前記第１搬送容器に設けられた第１記録手段から、前記第１搬送容器で搬送された配合物に含まれる材料の種類及び配合割合を読み出して配合物の確認をし、前記配合物を所定の条件で加工した後、生成された加工物を第２搬送容器に収納し、前記第２搬送容器に収納された前記加工物の加工条件を前記第２搬送手段に設けられた第２記録手段に記録し、前記第２搬送容器の搬送先で、前記第２記録手段に記録された加工条件を読み出して前記加工物の加工条件を管理する製造条件管理方法である。
【００１８】
（４）ゴムの製造に使用する複数種類の材料を収納する材料保管容器と、前記各材料のそれぞれを計量する計量装置と、前記計量した各材料を配合したゴム配合物を容器に収納して搬送する第１搬送手段と、前記第１搬送手段により搬送されたゴム配合物を加工する加工装置と、前記加工装置で加工された加工ゴムを容器に収納して搬送する第２搬送手段と、前記材料保管容器に収納されている材料の在庫を管理する在庫管理手段と、前記第１搬送手段で搬送される前記ゴム配合物中に含まれる各材料の種類及び配合割合を管理する配合物管理手段と、前記第２搬送手段で搬送される前記加工ゴムの加工条件を管理する加工条件管理手段とを具備するゴム製造システムであって、前記材料保管容器は、前記在庫管理手段で管理する材料の種類及び収納されている残量の情報を記録する第１ＩＣカードが設けられ、前記第１搬送手段は、前記配合物管理手段で管理する前記配合物に含まれる材料の種類及び配合割合の情報を記録する第２ＩＣカードが設けられ、前記第２搬送手段は、前記加工条件管理手段で管理する前記加工物の加工条件の情報を記録する第３ＩＣカードが設けられており、前記第１ＩＣカード及び第２ＩＣカード、ならびに第３ＩＣカードのそれぞれには、前記管理する情報の読み出し及び書き込みが可能な記録手段及び無線通信用の信号送受信手段（アンテナコイル）を有するゴム製造システムである。
【００１９】
前記（１）の手段によれば、前記材料保管容器に収納される材料及び初期の収納量を記録手段に記録しておき、前記材料保管容器から材料を取り出すごとに、取り出し量と残量を前記記録手段に追記していくので、前記記録手段に記録された材料の残量を読み出して在庫管理を行うことができる。前記記録手段は、例えば、ＥＥＰＲＯＭ（Electrical erasable and programmable read only memory ）のような読み出し及び書き込みが可能なものであり、前記ＥＥＰＲＯＭ等が設けられた半導体チップを有するＩＣカードを前記材料保管容器に取り付けておいて、情報の読み出し及び書き込みを行う。また、前記記録手段は、前記ＥＥＰＲＯＭに限らず、電源を切っても記録された情報が消去されない不揮発性メモリであれば良く、例えば、強誘電性メモリ（ＦｅＲＡＭ；Ferro-electric Random Access Memory ）であってもよい。
【００２０】
また、前記材料の種類及び残量などの情報は、例えば、専用の読み書き装置（リーダー／ライター）を用いて無線通信により読み出し及び書き込みを行うため、前記ＩＣカード表面の汚れ等に影響されずに読み出し及び書き込みができる。また、専用の読み書き装置を使ってＩＣカード内に残量を追記するため、手書きで記入したりバーコードを作成するのに比べて、短時間で記録でき、記入ミスや記入漏れもなくなる。そのため、前記材料の在庫を容易に、且つ効率的に管理することができる。また、前記ＩＣカード内に材料の種類及び残量の他に、材料の入荷日も記録しておくことにより、前記材料の劣化状況の管理をすることができる。また、各材料保管容器ごとに使用量及び残量の管理ができるため、各材料ごとに補充時期を把握することができる。
【００２１】
また、前記（２）の手段によれば、材料保管容器から取り出して計量した各材料を順次、前記搬送容器に投入して配合物を生成するときに、前記搬送容器に収納された前記配合物に含まれる材料の種類及び配合割合を、ＩＣカードに設けられたＤＲＡＭなどの記録手段に記録することにより、前記搬送容器の搬送先で、前記ＩＣカードから材料の種類及び配合割合を読み出して搬送された配合物の管理を行うことができる。このときも、前記材料の種類及び配合割合は、例えば、専用の読み書き装置を用いて無線通信により読み出し及び書き込みを行うため、前記ＩＣカード表面の汚れなどに影響されずに読み出し及び書き込みができる。また、配合物に含まれる材料の種類が多い場合でも、専用の読み書き装置により一括してＩＣカードに記録できるため、従来のような手書きでの記入などに比べ、短時間で記録でき、記入ミスや記入漏れもなくなる。そのため、製造条件の管理が容易になる。また、前記（１）の手段のように、前記材料保管容器から材料を取り出して計量する前に、前記ＩＣカードから材料の種類を読み出して確認することにより、誤った材料を配合することを防げる。
【００２２】
また、前記（３）の手段によれば、複数種類の材料を所定の割合で配合した配合物を加工する前に、前記配合物を搬送する前記第１搬送容器に設けられた第１ＩＣカードから、搬送された配合物に含まれる材料の種類及び配合割合を読み出して搬送された配合物の確認ができる。また、前記配合物を所定の条件で加工した後、生成された加工物の加工条件を前記第２搬送手段に設けられた第２ＩＣカードに記録することで、前記第２搬送容器の搬送先で、前記第２ＩＣカードから加工条件を読み出して搬送された加工物の製造条件を管理することができる。このときも、前記加工条件は、例えば、専用の読み書き装置を用いて無線通信により読み出し及び書き込みを行うため、前記ＩＣカード表面の汚れなどに影響されずに読み出し及び書き込みができる。また、ＩＣカードが備えるＤＲＡＭ等の記憶手段（メモリ）の容量が大きいため、直前の加工条件のほかにも、配合されている材料の履歴や、他の工程での加工条件等を追記できる。
【００２３】
また、前記（１）から（３）の手段を組み合わせて適用した例として、前記（４）の手段のような、ゴム製造工程の管理システムが考えられる。前記ゴム製造工程において、情報の読み出し及び書き込みが可能な記憶手段を有する半導体チップ及び無線通信用の信号送受信手段（アンテナコイル）が組み込まれたＩＣカードを前記材料保管容器、前記第１搬送手段、及び前記第２搬送手段のそれぞれに設ける。前記材料保管容器に設けられた第１ＩＣカードには、前記材料保管容器に収納されている材料の在庫を管理する情報を記録し、前記第１搬送手段に設けられた第２ＩＣカードには、前記第１搬送手段で搬送される前記ゴム配合物中に含まれる各材料の種類及び配合割合を管理する情報を記録し、前記第２搬送手段に設けられた第３ＩＣカードには、前記第２搬送手段で搬送される前記加工ゴムの加工条件を管理する情報を記録する。このときも、前記各ＩＣカードに記録される情報は、例えば、専用の読み書き装置を用いて無線通信により読み出し及び書き込みを行うため、前記ＩＣカード表面の汚れなどに影響されずに読み出し及び書き込みができる。
【００２４】
また、前記（４）の手段において、前記第１ＩＣカードに記録される材料の種類及び使用量ならびに残量と、前記第２ＩＣカードに記録されるゴム配合物に含まれる材料の種類及び配合割合と、前記第３ＩＣカードに記録される加工ゴムの加工条件のそれぞれを、一括して管理する管理装置が設けることにより、各製造工程間で、前記各ＩＣカードを介して受け渡しをする管理とは別に、製造工程全体の管理情報を共有化することができる。例えば、前記管理装置を設けることにより、前記加工ゴムの加工条件からさかのぼって、その加工ゴムで使用している材料の種類、入荷日等の情報まで得ることができるようになる。
【００２５】
また、前記（４）の手段において、前記計量装置は、例えば、前記材料保管容器に収納されている材料を指定された量だけ計量して前記第１搬送手段に収納する計量手段と、前記第１ＩＣカードに記録された材料の種類及び材料を取り出す前の残量を読み出し、計量した後の取り出し量及び残量を前記第１ＩＣカードに記録するとともに、前記第１搬送手段に収納されたゴム配合物に含まれる材料の種類及び配合割合を前記第２ＩＣカードに記録する第１情報読み書き手段とを備える。また、前記加工装置は、前記第１搬送手段で搬送されたゴム配合物を所定の条件で混練加工する混練手段と、前記第２ＩＣカードに記録された前記ゴム配合物に含まれる材料の種類及び配合割合を読み出し、前記混練手段で混練されて前記第２搬送手段に収納された加工ゴムの加工条件を前記第３ＩＣカードに記録する第２情報読み書き手段とを備える。前記第１情報読み書き手段及び第２情報読み書き手段は、前記各ＩＣカードとの間で無線通信を用いて情報の読み出し及び書き込みができるようなものである。そのため、前記各ＩＣカードを前記第１情報読み書き装置及び第２情報読み書き装置に接近させるだけで読み出し及び書き込みができる。すなわち、非接触の状態で読み出し及び書き込みができるため、前記各製造工程での管理に必要な情報の読み出し及び書き込み作業が容易になる。
【００２６】
以下、本発明について、図面を参照して実施の形態（実施例）とともに詳細に説明する。
【００２７】
なお、実施例を説明するための全図において、同一機能を有するものは、同一符号をつけ、その繰り返しの説明は省略する。
【００２８】
【発明の実施の形態】
（実施例１）
図１は、本発明による一実施例のゴム製造システムの概略構成を示す模式ブロック図である。
【００２９】
図１において、１Ａは第１材料保管容器、１Ｂは第２材料保管容器、２Ａは第１在庫量管理手段、２Ｂは第２在庫量管理手段、２Ｃは配合量管理手段、２Ｄは第１製造条件管理手段、２Ｅは第２製造条件管理手段、３は計量装置、４は第１搬送手段、５はゴム配合物、６は第１加工装置、７は第２搬送手段、８は第１加工物（第１加工ゴム）、９は第２加工装置、１０は第３搬送手段、１１は第２加工物（第２加工ゴム）、１２は管理装置である。
【００３０】
本実施例のゴム製造システムは、図１に示すように、ゴム製造に用いる材料を収納する第１材料保管容器１Ａ及び第２材料保管容器１Ｂと、前記第１材料保容器１Ａに取り付けられる第１在庫管理手段２Ａ及び前記第２材料保管容器１Ｂに取り付けられる第２在庫管理手段２Ｂと、前記各材料を計量する計量装置３と、前記計量装置３で計量した各材料を配合したゴム配合物５を容器に収納して次の工程に搬送する第１搬送手段４と、前記第１搬送手段に取り付けられた配合量管理手段２Ｃと、前記第１搬送手段４で搬送されたゴム配合物５を加工する第１加工装置６と、前記第１加工装置により加工された第１加工物（第１加工ゴム）８を容器に収納して次の工程に搬送する第２搬送手段７と、前記第２搬送手段７に取り付けられた第１製造条件管理手段２Ｄと、前記第２搬送手段７で搬送された第１加工ゴム８を加工する第２加工装置９と、前記第２加工装置９で加工された第２加工物１１を容器に収納して次の工程に搬送する第３搬送手段１０と、前記第３搬送手段１０に取り付けられた第２製造条件管理装置２Ｅと、前記計量装置３が前記第１在庫管理手段２Ａ及び前記第２在庫管理手段２Ｂならびに前記配合量管理手段２Ｃに記録した内容、前記第１加工装置６が前記第１製造条件管理手段２Ｄに記録した内容、前記第２加工装置９が前記第２製造条件管理手段２Ｅに記録した内容を一括して管理する管理装置１２により構成されている。
【００３１】
なお、図１に示した、各構成要素間を接続する矢印は、管理に必要な情報を受け渡す方向を示しており、両端に矢印がついているものは双方向で受け渡しを行うものとする。
【００３２】
図２乃至図４は、本実施例のゴム製造システムにおける材料の在庫管理方法及び配合量の管理方法を説明するための模式図である。
【００３３】
図２において、３０１は計量手段（天秤）、３０２は第１情報読み書き手段（カードリーダー／ライター）、１２０１は管理手段（コンピュータ）、１２０２はカードリーダーであり、図３において、２０１はＩＣチップ、２０２は第２送受信手段（アンテナコイル）、２０３はカード状基板、２０４は情報記録手段、２０５は信号変換手段、２０６は信号処理手段、２０７は電力変換手段、１２０２Ａはコントローラ、１２０２Ｂは第１送受信手段である。
【００３４】
以下、図２乃至図４に沿って、本実施例のゴム製造システムにおける、材料の在庫管理方法及び配合割合の管理方法を説明する。
【００３５】
まず、本実施例のゴム製造に用いる各材料は、図２に示した、第１材料保管容器１Ａや第２材料保管容器１Ｂに収納されている。前記第１材料保管容器１Ａ及び第２材料保管容器１Ｂには、それぞれ第１在庫管理手段２Ａ及び第２在庫管理手段２Ｂが取り付けられている。なお、図２では、二つの材料保管容器しか示していないが、実際のゴム製造では、主材となるゴム、促進剤あるいは分散剤として用いるステアリン酸、加硫促進助剤として用いる亜鉛華、着色剤や補強剤として用いるカーボンブラック、加硫剤として用いるイオウ、その他、加硫促進剤、老化防止剤、酸化防止剤といった多くの種類の材料が用いられ、それぞれの材料が、図２に示したような在庫管理手段が取り付けられた材料保管容器に保管されている。
【００３６】
前記第１在庫管理手段２Ａ及び第２在庫管理手段２Ｂは、図３（ａ）に示すような、ＩＣチップ２０１と無線通信用の第２送受信手段（アンテナコイル）２０２が絶縁性のカード状基材２０３に接着された非接触型のＩＣカード２からなる。
【００３７】
前記ＩＣカード２に接着されたＩＣチップ２０１は、図３（ｂ）に示すように、管理用の情報が記録される情報記録手段２０４と、前記アンテナコイル２０２で受信した信号を前記ＩＣチップ２０１内の動作周波数の信号に復調するとともに、前記ＩＣカード２から送信する信号を無線通信の周波数の信号に変調する信号変換手段２０５と、前記情報記録手段２０４への情報の書き込みや読み出し等の処理を行う信号処理手段２０６と、前記ＩＣチップ２０１を動作させる電力を発生させる電力変換手段２０７を有する。本実施例で用いる非接触型のＩＣカード２では、例えば、前記管理装置１２との間での情報の受け渡しには、コントローラー１２０２Ａ及び第１送受信手段１２０２Ｂからなる情報読み書き手段（カードリーダ／ライター）１２０２との間で、無線通信により情報の送受信を行い、前記情報記録手段２０４に記録された情報をコンピュータ等の管理手段１２０１に転送する。
【００３８】
前記第１在庫管理手段２Ａ及び前記第２在庫管理手段２Ｂの情報記録手段２０４は、例えば、ＥＥＰＲＯＭ（Electrical erasable and programmable read only memory ）が用いられている。前記ＥＥＰＲＯＭは、図４（ａ）に示すように、アドレスＡ１からアドレスＡｎまでを持つ容量の大きいメモリであって、例えば、アドレスＡ１にはＩＣチップ等が持つ固有番号（シリアル番号）が記録され、アドレスＡ２には書き込みができないようになっているとする。そして、例えば、アドレスＡ３に保管する薬品名（材料名）、アドレスＡ４に薬品（材料）の識別番号（ロット番号）、アドレスＡ５に入荷日、アドレスＡ６に入荷量（初期の収納量）、アドレスＡ７、アドレスＡ８と順に使用日、使用量などの使用状況を書き込まれ、アドレスＡｎに現在の残量が記録される。
【００３９】
各材料の製造工場から入荷した材料保管容器に取り付けられた在庫管理手段には、材料名、材料のロット番号、入荷日及び入荷量が記録されている。前記各材料、例えば、原料ゴムが収納された前記第１材料保管容器１Ａを入荷したときは、図２及び図３（ｂ）に示すように、まず始めに前記カードリーダー１２０２を用いて、前記第１材料保管容器１Ａに取り付けられた第１在庫管理手段（ＩＣカード）２Ａから、前記材料名、材料のロット番号、入荷日及び入荷量を読み取り、前記管理手段１２０１にその情報を記録する。新しく材料を入荷するごとにこの作業を行い前記管理手段１２０１に記録することにより、ゴム製造に使用する全ての材料の入荷日あるいは入荷量等の管理を前記管理装置１２で一括して行うことができる。
【００４０】
次に、実際のゴム製造工程に入り、入荷した前記各材料を前記各材料保管容器から取り出して所定の割合で配合するために、前記計量装置３で計量する。このとき、目的のゴム製品を製造するために必要な材料の種類及び配合割合は、あらかじめ選択して前記計量手段３０１に入力しておく。前記計量手段３０１への入力は、例えば、あらかじめ用意された指示書に沿って、作業者が直接前記計量手段３０１に入力される。また、前記管理手段１２０１に数種類のゴム製品の配合割合を記録しておき、作業者が前記計量手段３０１でゴム製品の種類を指定すると、前記管理手段１２０１から必要な材料の種類とその配合割合の情報が前記計量手段３０１に転送されるようにしておいても良い。
【００４１】
次に、例えば、第１材料保管容器１Ａを前記計量装置３に設けられた第１情報読み書き手段（カードリーダー／ライター）３０２に接近させて、第１在庫管理手段２Ａの前記情報記録手段２０４に記録された材料名、入荷日及び入荷量（初期の収納量）の情報を読み出す。このとき、読み出した前記材料名の情報を、前記計量手段３０１に入力された情報と照合することで、目的のゴム製造に使用する材料であることが確認できる。また、入荷量（初期の収納量）の情報により、第１材料保管容器１Ａに、目的のゴム製品の製造に必要な量が収納されているか確認できる。前記第１材料保管容器１Ａに収納された材料の量が足りないときは、別の材料保管容器に収納されている入荷日などの条件が同じ材料を加えるか、前記第１材料保管容器１Ａに収納されている量と、配合割合に合わせて他の材料の配合量を調節する。またこのとき、入荷した日から長期間経過した材料は品質が劣化している可能性があるので、入荷日を読み出したときに一定期間が過ぎた材料は使用できないように、前記計量手段３０１で設定することも可能である。
【００４２】
前記材料の確認が済んだら、前記計量手段（天秤）３０１で所定の重量、例えば、主材のゴムを１００kg計量して所定の搬送容器に投入する。この計量は、一般的に作業者が手作業で行うため、厳密に１００kgちょうどに計量できることは少なく、実際には若干の誤差が生じる。この誤差を含む実際に取り出した量と取り出した日付を、図２に示すように、前記第１情報読み書き手段３０２を介して、例えば、前記第１在庫管理手段２Ａの情報記録手段２０４のアドレスＡ８に書き込む。また同時に、前記情報記録手段２０４に記録されていた入荷量（初期の収納量）から前記取り出し量を差し引いた値を新しい残量として、前記情報記録手段２０４のアドレスＡｎに上書きする。この書き込みは、例えば、前記第１材料保管容器１Ａから材料を取り出した後、前記第１材料保管容器１Ａの第１在庫管理手段（ＩＣカード）２Ａの部分を再び前記第１情報書き込み手段（カードリーダー／ライター）３０２に接近させて行う。このように、各材料保管容器から材料を取り出した直後に、前記各材料保管容器に取り付けられた在庫管理手段（ＩＣカード）に取り出した量と現在収納されている量（残量）を記録しておくことにより、各材料保管容器ごとに在庫量の管理を行うことができる。また、前記第１在庫管理手段２Ａの情報記録手段２０４に記録した取り出し量と現在収納されている量（残量）は、前記管理装置１２の管理手段（コンピュータ）１２０１にも記録される。
【００４３】
残りの材料に関しても同様の手順で、例えば、前記第２材料保管容器１Ｂから、所定の重量を計量して前記搬送容器に収納し、取り出し量及び残量等の情報を前記第２在庫管理手段２Ｂに記録するとともに、前記管理手段１２０１にも記録する。
【００４４】
このように、各材料保管容器から材料を取り出すごとに使用重量と残量を、前記各材料保管容器に取り付けられた在庫管理手段（ＩＣカード）に記録するとともに、前記管理手段１２０１に記録することにより、前記ゴム製造に用いる複数の材料の在庫状況を一括して管理することができる。
【００４５】
前記計量手段３０１で計量して搬送容器に収納された、複数種類の材料からなるゴム配合物５は、配合量管理手段２Ｃが設けられた第１搬送手段４により次の工程に搬送される。
【００４６】
前記第１搬送手段４に設けられた前記配合量管理手段２Ｃは、前記在庫管理手段と同様の構成のＩＣカード２からなる。前記配合量管理手段２Ｃの情報記録手段２０４には、例えば、図４（ｂ）に示すように、アドレスＡ３に製品名、アドレスＡ４に製品の識別番号（ロット番号）、アドレスＡ５に作業日、アドレスＡ６、アドレスＡ７と順に、前記第１搬送手段４に収納されたゴム配合物５に含まれる材料の材料名と使用量（配合割合）が書き込まれ、アドレスＡｎには前記ゴム配合物５の総重量が記録される。このときの各情報の書き込みは、前記在庫管理手段の場合と同様で、前記第１搬送手段４に設けられた前記配合量管理手段２Ｃを、前記第１情報読み書き手段３０２に接近させて行う。前記第１搬送手段４に収納されたゴム配合物５は、前記ゴム配合物５に含まれる材料の種類及び配合割合の情報とともに、次の工程を行う装置まで搬送される。
【００４７】
以上説明したように、本実施例のゴム製造工程における材料管理方法では、ゴム製造に使用する各材料を収納する材料保管容器に、在庫管理手段（非接触型ＩＣカード）を取り付けておき、前記在庫管理手段を専用の情報読み書き手段（カードリーダー／ライター）に接近させて、前記材料保管容器から取り出した材料の量及び残量を記録することにより、前記材料保管容器ごとに残量（在庫量）を管理でき補充時期等を把握できる。また、前記材料保管容器から材料を取り出す前に、前記情報読み取り手段で材料の種類を読み出すことにより、誤った材料の使用を防ぐことができる。また、前記在庫保管手段に、材料の入荷日を記録しておいてそれを読み出すことにより、使用する材料の劣化状況などが把握でき、材料の品質管理ができる。また、前記各在庫管理手段に記録される情報をコンピュータ等の管理手段１２０１にも記録しておくことにより、前記材料保管容器ごとの在庫管理とは別に、使用する材料全体の在庫管理、品質管理が行える。
【００４８】
また、前記各材料保管容器から所定の量を計量して配合したゴム配合物５を容器に収納して搬送する第１搬送手段４にも、前記在庫管理手段と同様の構成の配合量管理手段（非接触型ＩＣカード）２Ｃを取り付けておき、前記ゴム配合物５を搬送した先で、前記配合量管理手段２Ｃを前記情報読み書き手段に接近させて、前記ゴム配合物５に含まれる材料の種類及び配合割合を記録することにより、前記計量装置３と前記第１搬送手段４の搬送先との間で、搬送されるゴム配合物５に含まれる材料の種類及び配合割合を管理できる。
【００４９】
図５及び図６は、本実施例のゴム製造システムにおける製造条件の管理方法を説明するための模式図である。
【００５０】
図５において、６０１は第１混練手段、６０２は第２情報読み書き手段、９０１は第２混練手段、９０２は計量手段（天秤）、９０３は第３情報読み書き手段である。
【００５１】
以下、図５及び図６に沿って、本実施例のゴム製造工程における製造条件の管理方法について説明する。
【００５２】
まず、前記手順に沿って複数種類の材料が配合されたゴム配合物５を搬送する前記第１搬送手段４は、第１混練手段６０１を備える第１加工装置６に搬送される。前記第１加工装置６では、まず前記配合量管理手段（ＩＣカード）２Ｃを第２情報読み書き手段（カードリーダー／ライター）６０２に接近させて、搬送されたゴム混合物５に含まれる材料の種類及び配合割合の情報を読み出して指定されたゴム混合物５が届いたか確認する。前記ゴム混合物５の確認をした後、前記配合物５を第１混練手段６０１に投入し、温度、回転数、時間等の混練条件を設定して混練する。このときの混練条件は、あらかじめ前記第１混練手段６０１に記録しておいても良いし、作業者が条件を手入力しても構わない。また、前記第１混練手段６０１で用いる複数種類の混練条件のパターンを前記管理手段１２０１に記録しておくとともに、前記第１搬送手段４に取り付けられた前記配合量管理手段２Ｃに混錬条件のパターンを指定する情報を記録しておき、その記録されたパターン指定情報を読み出して、指定された混練条件を前記管理手段１２０１から前記混練手段６０１に転送するようにしても良い。
【００５３】
前記第１混練手段６０１での混錬加工を行った後の第１加工物（第１加工ゴム）８は、専用の収納容器に収納されて第２搬送手段７で次の工程に搬送される。前記第２搬送手段７には、前記配合量管理手段２Ｃと同様の第１製造条件管理手段（ＩＣカード）２Ｄが取り付けられており、前記第１製造条件管理手段２Ｄの情報記録手段２０４には、前記情報読み書き手段６０２を介して、例えば、図６（ａ）に示すように、アドレスＡ３に製品名、アドレスＡ４に製品の識別番号（ロット番号）、アドレスＡ５に作業日、アドレスＡ６に作業開始時刻が記録されるほか、アドレスＡ７、アドレスＡ８、アドレスＡ９と順に、混練時の条件（製造条件）が記録される。このときの記録方法も、前記配合量管理手段２Ｃに記録する方法と同様で、前記第２搬送手段７の第１製造条件管理手段２Ｄを第２情報読み書き手段６０２に接近させて書き込む。
【００５４】
また、前記第１製造条件管理手段２Ｄの情報記録手段２０４に記録した混練条件の情報と同じ情報が、前記管理装置１２の管理手段１２０１にも転送されて記録される。前記管理手段１２０１に記録された混練条件の情報は、それ以前に前記管理手段１２０１に記録されている、材料の種類及び残量（在庫状況）や、ゴム配合物５の配合割合などと関連付けられ、現在第２搬送手段７で搬送している第１加工ゴム８に使用している材料の出所や、配合割合などに基づいて前記第１加工ゴム８の品質管理が行えるようになっている。
【００５５】
次に、前記第２搬送手段７に収納された第１加工ゴム８は、図５に示したように、第２加工装置９に搬送される。前記第２加工装置９では、前記第２搬送手段７に取り付けられた第１製造条件管理手段（ＩＣカード）２Ｄを、第３情報読み書き手段（カードリーダー／ライター）９０３に接近させて、搬送された第１加工ゴム８の混練条件（製造条件）を読み出して確認する。その後、前記第１加工ゴム８を第２混練手段９０１に投入する。混錬を行う際には、使用目的に合わせた特性を得るために、例えば、イオウなどの加硫剤、加硫促進剤等を添加する場合がある。そのような場合には、図５に示すように、前記第２加工装置９に、前記計量手段３０１と同様の構成の計量手段９０２を設けておき、添加する材料を計量し、前記第２混練手段９０１に投入する。このとき使用する材料が収納されている材料保管容器にも、図２及び図３に示したような在庫管理手段が取り付けられており、前記計量手段９０２が備える情報読み書き装置（図示しない）により取り出し量と残量が記録される。
【００５６】
前記第１加工ゴム８と添加剤の配合が終わったら、前記第２混練手段９０１の温度、回転数、時間等の混練条件を設定して前記第１加工ゴム８を混練する。このときの混練条件は、前記第１混練手段６０１と同様で、あらかじめ第２混練手段９０１に記録しておいても良いし、作業者が条件を手入力しても構わない。また、前記管理手段１２０１に複数種類の条件のパターンをあらかじめ用意しておき、前記第２搬送手段７に取り付けられた第１製造条件管理手段２Ｄに混錬条件を指定する情報を記録しておき、その混練条件を指定する情報を前記第３情報読み書き手段９０３で読み出して、指定された混練条件のパターンを前記管理手段１２０１から前記第２混練手段９０１に転送しても良い。
【００５７】
前記第２混練手段９０１での混錬加工を行った後の第２加工物（第２加工ゴム）１１は、専用の容器に収納されて第３搬送手段１０により次の工程へ搬送される。前記第３搬送手段１０には、前記第１製造条件管理手段２Ｄと同様の第２製造条件管理手段（ＩＣカード）２Ｅが取り付けられており、前記第２製造条件管理手段２Ｅの情報記録手段２０４には、前記情報読み書き手段９０３を介して、例えば、図６（ｂ）に示すように、アドレスＡ３に製品名、アドレスＡ４に製品の識別番号（ロット番号）、アドレスＡ５に作業日、アドレスＡ６に添加物の種類（薬品名）と使用量、アドレスＡ７に作業開始時刻が記録されるほか、アドレスＡ８、アドレスＡ９、アドレスＡ１０と順に、混練時の条件（製造条件）が記録される。このときの記録方法も、前記第１製造条件管理手段２Ｄの記録方法と同様で、前記第２製造条件管理手段２Ｅを前記第３情報読み書き手段９０３に接近させることにより行う。また、前記第２製造条件管理手段２Ｅの情報記録手段２０４に記録した添加物の種類及び添加量や混練条件と同じ内容の情報が、前記管理装置１２の管理手段１２０１にも記録される。前記管理手段１２０１に記録された製造条件は、それ以前に前記管理手段１２０１に記録されている、材料の種類や残量（在庫状況）や、前記ゴム配合物５の配合割合、第１混練手段６０１での混練条件などと関連付けられ、現在第３搬送手段１０で搬送している第２加工ゴム１１に使用している材料の出所や、配合割合などに基づいて品質管理が行えるようになっている。
【００５８】
以上説明したように、本実施例の製造条件の管理方法によれば、各工程で生成する加工物を次の工程を行う装置に搬送する搬送手段に、前記在庫管理手段と同様の非接触型ＩＣカードを取り付けて、前記ＩＣカードに、搬送する加工物がどのような条件で加工されたかを記録しておくことにより、製造条件を次の工程に正確に伝達できるので、搬送された加工物の品質信頼性が向上する。また、次の工程を行う際に、前の工程での加工条件が正確に把握できるので、添加物の調整や加工条件の調整が行いやすくなる。
【００５９】
また、各工程での材料の配合割合や加工条件（製造条件）を、前記ＩＣカード内に記録するとともに、コンピュータなどの管理手段に転送することにより、各工程間で独立した管理情報を全工程にわたって共有化でき製造工程全体を一括して管理することができる。例えば、最終的な加工物（ゴム製品）を搬送する搬送手段の製造条件管理手段（ＩＣカード）に記録された管理情報を読み出して前記管理手段で照会することにより、前記ゴム製品で使用している材料の品質チェックや、中間の工程での製造条件を調べることができる。そのため、前記加工品の品質信頼性がさらに向上する。
【００６０】
また、本実施例では、前記材料保管容器、搬送手段のそれぞれに取り付けられたＩＣカードに、材料の在庫情報あるいは製造条件等を記録して、製造工程中の材料あるいは加工物の品質を管理する管理方法について説明したが、これに限らず、前記材料保管容器、搬送手段の管理も行うことができる。前記材料保管容器や搬送手段は、材料あるいは加工物の品質を一定に維持するために特殊な材質を用いている場合が多い。前記材料保管容器は、保管している材料がなくなると各材料の製造工場に回収され、新たな材料が補充されるが、前記材料保管容器が回収されないと、次の材料を収納して出荷するために新しい容器を用意しなければならない。また、前記搬送手段も、ゴム配合物あるいは加工物を次の工程に搬送した後、次のゴム配合物あるいは加工物を搬送するために前の工程に返却される。しかし、前記搬送手段が返却されない場合には、新しい搬送手段を用意しなければならない。そのため、ゴム製品の製造コストとは別に前記材料保管容器や搬送手段の管理コストがかかり、その結果としてゴム製品のコストが増大してしまう。そこで、前記材料保管容器や搬送手段に取り付けられた各管理手段（ＩＣカード）に、前記材料保管容器の保管場所や、搬送手段の搬送先の情報を記録しておき、回収あるいは返却されたときに、前記ＩＣカードから情報を読み出してどこから戻ってきたかを管理することにより、前記材料保管容器や搬送手段の紛失、未回収を防げ、管理コストを低減させることができる。
【００６１】
なお、本実施例では、ゴム製造工程を例にあげて説明したが、これに限らず、複数種類の材料を用いて、複雑な加工条件により製造させる加工物の製造工程を管理する管理システムに適用できることは言うまでもない。
【００６２】
以上、本発明を、前記実施例に基づき具体的に説明したが、本発明は、前記実施例に限定されるものではなく、その要旨を逸脱しない範囲において種々変更可能であることはもちろんである。
【００６３】
【発明の効果】
本発明において開示される発明のうち、代表的なものによって得られる効果を簡単に説明すれば、以下のとおりである。
【００６４】
（１）多くの種類の材料を用いる製品の製造工程において、各材料の在庫量を効率良く管理することできる。
【００６５】
（２）多くの種類の材料を用いて複雑な加工を行う製品の製造工程において、各製造工程での製造条件を容易に管理することできる。
【００６６】
（３）多くの種類の材料を用いて複雑な加工を行うゴム製造システムにおいて、各材料の在庫管理、製造条件を容易に管理することできる。
【００６７】
（４）多くの種類の材料を用いて複雑な加工を行うゴム製造システムにおいて、各材料の在庫管理、製造条件の管理を一括して行うことができる。
【図面の簡単な説明】
【図１】本発明による一実施例のゴム製造システムの概略構成を示す模式ブロック図である。
【図２】本実施例のゴム製造システムにおける在庫管理方法及び配合量の管理方法を説明するための模式図である。
【図３】本実施例のゴム製造システムにおける在庫管理方法及び配合量の管理方法を説明するための模式図である。
【図４】本実施例のゴム製造システムにおける在庫管理方法及び配合量の管理方法を説明するための模式図である。
【図５】本実施例のゴム製造システムにおける製造条件の管理方法を説明するための図である。
【図６】本実施例のゴム製造システムにおける製造条件の管理方法を説明するための図である。
【符号の説明】
１Ａ第１材料保管容器
１Ｂ第２材料保管容器
２ＩＣカード
２Ａ第１在庫管理手段
２Ｂ第２在庫管理手段
２Ｃ配合量管理手段
２Ｄ第１製造条件管理手段
２Ｅ第２製造条件管理手段
２０１ＩＣチップ
２０２第２送受信手段
２０３カード状基板
２０４情報記録手段
２０５信号変換手段
２０６信号処理手段
２０７電力変換手段
３計量装置
３０１計量手段（天秤）
３０２，６０２，９０３，１２０２情報読み書き装置（カードリーダー／ライター）
４第１搬送手段
５配合物
６第１加工装置
６０１第１混練手段
７第２搬送手段
８第１加工物
９第２加工装置
９０１第２混練手段
９０２計量手段
１０第３搬送手段
１１第２加工物
１２管理装置
１２０１管理手段（コンピュータ）
１２０２カードリーダ
１２０２Ａコントローラ
１２０２Ｂ第１送受信手段
Ａ１，Ａ２，Ａ３，Ａ４，Ａ５，Ａ６，Ａ７，Ａ８，Ａ９，Ａ１０，Ａｎアドレス[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an inventory management method for managing material inventory, a manufacturing condition management method for a workpiece manufactured using the material, and a rubber manufacturing system using the same, and more particularly, a plurality of types used in a rubber manufacturing process. The present invention relates to a technique effective when applied to material inventory management and kneading condition management.
[0002]
[Prior art]
Conventionally, rubbers are roughly classified into general rubbers such as natural rubber (NR), isoprene rubber (IR), and butadiene rubber (BR), and special rubbers having special performance that cannot be obtained by general rubbers. Examples of the special rubber include nitrile rubber (NBR) and polysulfide rubber (T) having high oil resistance, ethylene-propylene rubber (EPDM) and fluorine rubber (FKM) having high heat resistance.
[0003]
Unlike the fiber and plastic manufacturing process, the rubber manufacturing process is a process called raw kneading to form a plasticized rubber, and then the plasticized rubber is mixed with an accelerator such as stearic acid. Mixing agents, coloring agents such as carbon black, reinforcing agents, vulcanizing sulfur, vulcanization accelerators, vulcanization accelerators such as zinc white, and antioxidants based on empirical mixing ratios After that, the rubber compound is formed by kneading under predetermined conditions. Thereafter, the rubber molded from the rubber compound is vulcanized and kneaded at, for example, 148 ° C. for 30 minutes to obtain a rubber product. The rubber material and properties that are finally obtained also change depending on the blending design in the manufacturing process, that is, the blending ratio of the softener, vulcanizing agent, and the like. Even when the same materials are blended in the same proportion, the characteristics of the finally obtained rubber product may change depending on the difference in kneading time, the temperature at the time of kneading, and the like. Therefore, the blending ratio of materials and kneading conditions in the rubber manufacturing process are very important factors in determining the characteristics of the rubber product, and the quality of the rubber product finally obtained is guaranteed by the blending ratio and kneading conditions. The
[0004]
In the conventional rubber manufacturing process, the manufacturing conditions such as the stock amount of the materials to be used, the blending ratio, and the kneading conditions are entered by an operator by hand on a management slip consisting of predetermined management items, or made of paper or plastic. A printed card is printed in a barcode format or the like, and information recorded on the card is read and confirmed by a reading device such as a barcode reader in each step. In addition, management of the stock amount of each material, management of the amount of materials used, management of work conditions in the kneading process, etc. are performed for each process.
[0005]
[Problems to be solved by the invention]
However, according to the conventional technique, the stock amount of the material used for manufacturing the rubber, the blending ratio, and the manufacturing conditions such as the kneading conditions are printed on the card surface using a barcode format or the like. Therefore, there is a problem that a part of the printed barcode information is lost due to dirt or scratches on the card surface that occurs during manufacturing or transportation, and the recorded inventory amount, manufacturing conditions, etc. cannot be read accurately. there were.
[0006]
In addition, when managing the inventory of materials in the barcode format, etc., the remaining amount in the storage container changes each time the material is removed from the storage container, so bar code information corresponding to the new remaining amount is created each time. There was a problem that work efficiency was bad.
[0007]
In addition, even when an operator fills in a specified management slip by hand, management information may be missing, missed, or omitted due to contamination or missing of the control slip, material inventory, manufacturing conditions, etc. There was a problem that it was difficult to manage accurately.
[0008]
In addition, because the management of the mixing ratio of materials used and the management of work conditions are performed independently for each process, the types of materials used for work pieces processed under certain work conditions, the arrival time, etc. It becomes easy to become unclear or the mixing ratio before processing tends to be unclear. In addition, since the amount of information that can be recorded is small in the management in the barcode format, only the working conditions of the immediately preceding process are often recorded. For this reason, there has been a problem that the reliability of quality tends to be unclear in rubber products that are subjected to complicated processing using many kinds of materials. These problems are common to products using many kinds of materials regardless of the manufacturing process of the rubber product.
[0009]
An object of the present invention is to provide a technique capable of efficiently managing the stock amount of each material in a manufacturing process of a product using many kinds of materials.
[0010]
Another object of the present invention is to provide a technique capable of easily managing manufacturing conditions in each manufacturing process in a manufacturing process of a product that performs complex processing using many kinds of materials. .
[0011]
Another object of the present invention is to provide a technology capable of easily managing inventory management and manufacturing conditions of each material in a rubber manufacturing system that performs complex processing using many kinds of materials. .
[0012]
Another object of the present invention is to provide a technology capable of collectively managing inventory of each material and management of manufacturing conditions in a rubber manufacturing system that performs complex processing using many kinds of materials. It is in.
[0013]
The above and other objects and novel features of the present invention will be apparent from the description of this specification and the accompanying drawings.
[0014]
[Means for Solving the Problems]
The outline of the invention disclosed in the present invention will be described as follows.
[0015]
(1) In a material inventory management method for managing inventory of a plurality of types of materials stored by type in a material storage container, the type and initial storage amount of the material stored in the material storage container are recorded in a recording means. Before removing the material from the material storage container, the type of the material is read and confirmed from the recording means, and after removing the material, the remaining amount obtained by subtracting the removal amount from the removal amount and the initial storage amount Is recorded in the recording unit, and the inventory of the material stored in the material storage container is managed based on the type of material recorded in the recording unit and the remaining amount thereof.
[0016]
(2) In the manufacturing condition management method for managing the type and blending ratio (blending amount) of the material contained in the blended composition by taking out and weighing each material from the material storage container that stores plural kinds of materials by type, Each of the weighed materials is sequentially put into the transport container to produce a blend, and the type and blending ratio of the blend stored in the transport container are recorded in a recording means, and the transport destination of the transport container The manufacturing condition management method for managing the type and the mixing ratio of the material contained in the compound conveyed by the conveying container by reading the type and the compounding ratio of the material from the recording means.
[0017]
(3) In a manufacturing condition management method for managing a processing condition of a processed product obtained by processing a compound in which a plurality of types of materials are blended at a predetermined ratio with a processing apparatus under a predetermined condition, the first transport container is provided. It is generated after reading the kind and mixing ratio of the material contained in the compound conveyed in the first conveying container from the first recording means, confirming the compound, and processing the compound under predetermined conditions. The processed product is stored in a second transport container, the processing conditions of the processed product stored in the second transport container are recorded in a second recording means provided in the second transport means, and the second transport container is recorded. The manufacturing condition management method of managing the processing conditions of the workpiece by reading the processing conditions recorded in the second recording means at the transport destination.
[0018]
(4) A material storage container for storing a plurality of types of materials used for manufacturing rubber, a measuring device for measuring each of the materials, and a rubber compound containing the measured materials are stored in the container. A first conveying means for conveying; a processing apparatus for processing the rubber compound conveyed by the first conveying means; a second conveying means for accommodating and conveying the processed rubber processed by the processing apparatus in a container; Inventory management means for managing the stock of the material stored in the material storage container, and blend management for managing the type and blending ratio of each material contained in the rubber blend transported by the first transport means Means and a processing condition management means for managing processing conditions of the processed rubber conveyed by the second conveying means, wherein the material storage container is a material managed by the inventory management means Type of And a first IC card for recording information on the remaining amount stored therein, and the first transport means records information on the types and proportions of materials contained in the composition managed by the composition management means. A second IC card is provided, and the second conveying means is provided with a third IC card for recording information on the machining conditions of the workpiece managed by the machining condition management means, and the first IC card and the second IC card Each of the card and the third IC card is a rubber manufacturing system having recording means capable of reading and writing information to be managed and signal transmitting / receiving means (antenna coil) for wireless communication.
[0019]
According to the means of (1), the material stored in the material storage container and the initial storage amount are recorded in the recording means, and each time the material is removed from the material storage container, the removal amount and the remaining amount are recorded. Since additional recording is performed on the recording means, it is possible to read out the remaining amount of material recorded on the recording means and perform inventory management. The recording means is capable of reading and writing such as an EEPROM (Electrical Erasable and Programmable Read Only Memory), and an IC card having a semiconductor chip provided with the EEPROM or the like is attached to the material storage container. The information is read and written. The recording means is not limited to the EEPROM, but may be any non-volatile memory in which recorded information is not erased even when the power is turned off. For example, a ferroelectric memory (FeRAM; Ferro-electric Random Access Memory) is used. There may be.
[0020]
The information such as the type and remaining amount of the material is read and written by wireless communication using a dedicated read / write device (reader / writer), for example, so that it is not affected by dirt on the surface of the IC card. Read and write are possible. In addition, since the remaining amount is additionally written in the IC card using a dedicated read / write device, it can be recorded in a shorter time than writing by hand or creating a barcode, and there is no entry error or omission. Therefore, the stock of the material can be managed easily and efficiently. Further, by recording the material arrival date in addition to the material type and the remaining amount in the IC card, it is possible to manage the deterioration state of the material. Further, since the amount used and the remaining amount can be managed for each material storage container, the replenishment time can be grasped for each material.
[0021]
Further, according to the means of (2), when the respective materials taken out from the material storage container and weighed are sequentially put into the transport container to produce a blend, the blend stored in the transport container The material type and the mixing ratio are recorded in a recording means such as a DRAM provided in the IC card, and the material type and the mixing ratio are read from the IC card and transferred at the transfer destination of the transfer container. Management of the formulated formulation can be performed. Also at this time, the kind and blending ratio of the material can be read and written without being affected by dirt on the surface of the IC card, for example, because reading and writing are performed by wireless communication using a dedicated read / write device. In addition, even when there are many types of materials contained in the compound, it can be recorded on the IC card in a batch using a dedicated read / write device. And no omissions. Therefore, management of manufacturing conditions becomes easy. Further, as in the above means (1), before taking out the material from the material storage container and weighing it, it is possible to prevent the wrong material from being mixed by reading out and confirming the kind of the material from the IC card. .
[0022]
In addition, according to the means of (3), before processing a blend in which a plurality of types of materials are blended at a predetermined ratio, the first IC card provided in the first transport container that transports the blend is used. The type and ratio of the material contained in the conveyed formulation can be read to confirm the conveyed formulation. Moreover, after processing the said composition on predetermined conditions, the processing conditions of the produced | generated processed material are recorded on the 2nd IC card provided in the said 2nd conveyance means, By the conveyance destination of the said 2nd conveyance container The manufacturing conditions of the workpiece conveyed by reading the processing conditions from the second IC card can be managed. Also at this time, since the processing conditions are read and written by wireless communication using a dedicated read / write device, for example, reading and writing can be performed without being affected by dirt on the surface of the IC card. Further, since the storage capacity (memory) such as DRAM provided in the IC card is large, in addition to the previous processing conditions, the history of the blended material, the processing conditions in other processes, and the like can be added.
[0023]
Further, as an example in which the means (1) to (3) are combined and applied, a rubber production process management system such as the means (4) can be considered. In the rubber manufacturing process, an IC card in which a semiconductor chip having a storage means capable of reading and writing information and a signal transmission / reception means (antenna coil) for wireless communication is incorporated into the material storage container, the first transport means, And provided in each of the second conveying means. The first IC card provided in the material storage container records information for managing the inventory of the material stored in the material storage container, and the second IC card provided in the first transport means stores the information Information for managing the type and mixing ratio of each material contained in the rubber compound conveyed by the first conveying means is recorded, and the second IC is provided on a third IC card provided in the second conveying means. Information for managing processing conditions of the processed rubber conveyed by the means is recorded. At this time, the information recorded on each IC card is read and written by wireless communication using a dedicated read / write device, for example, so that the information can be read and written without being affected by dirt on the surface of the IC card. it can.
[0024]
Further, in the means of (4), the type and amount of the material recorded on the first IC card and the remaining amount, the type and blending ratio of the material contained in the rubber compound recorded on the second IC card, In addition to the management that delivers each of the processing conditions of the processed rubber recorded on the third IC card collectively through each IC card by providing a management device that collectively manages each processing condition recorded on the third IC card The management information for the entire manufacturing process can be shared. For example, by providing the management device, it is possible to obtain information such as the type of material used in the processed rubber, the date of arrival, etc. from the processing conditions of the processed rubber.
[0025]
Further, in the means of (4), the weighing device measures, for example, a specified amount of the material stored in the material storage container, and stores the material in the first conveying means; The type of material recorded on the 1 IC card and the remaining amount before taking out the material are read, the amount taken out and the remaining amount after weighing are recorded on the first IC card, and the rubber composition stored in the first conveying means A first information read / write unit that records the type and the mixture ratio of the material contained in the product on the second IC card. In addition, the processing apparatus includes a kneading unit that kneads the rubber compound conveyed by the first conveying unit under a predetermined condition, a kind of material included in the rubber compound recorded on the second IC card, and A second information read / write unit that reads the blending ratio and records the processing conditions of the processed rubber kneaded by the kneading unit and stored in the second conveying unit on the third IC card. The first information read / write means and the second information read / write means can read and write information using wireless communication with each IC card. Therefore, reading and writing can be performed only by bringing the IC cards closer to the first information reading / writing device and the second information reading / writing device. That is, since reading and writing can be performed in a non-contact state, reading and writing operations of information necessary for management in each manufacturing process are facilitated.
[0026]
Hereinafter, the present invention will be described in detail together with embodiments (examples) with reference to the drawings.
[0027]
In all the drawings for explaining the embodiments, parts having the same function are given the same reference numerals, and repeated explanation thereof is omitted.
[0028]
DETAILED DESCRIPTION OF THE INVENTION
Example 1
FIG. 1 is a schematic block diagram showing a schematic configuration of a rubber manufacturing system according to an embodiment of the present invention.
[0029]
In FIG. 1, 1A is a first material storage container, 1B is a second material storage container, 2A is a first inventory quantity management means, 2B is a second inventory quantity management means, 2C is a blending quantity management means, and 2D is a first production. Condition management means, 2E is the second production condition management means, 3 is the weighing device, 4 is the first conveyance means, 5 is the rubber compound, 6 is the first processing device, 7 is the second conveyance means, and 8 is the first processing. An object (first processed rubber), 9 is a second processing apparatus, 10 is a third conveying means, 11 is a second processed object (second processed rubber), and 12 is a management apparatus.
[0030]
As shown in FIG. 1, the rubber manufacturing system of the present embodiment includes a first material storage container 1A and a second material storage container 1B for storing materials used for rubber manufacture, and a first material storage container 1A attached to the first material storage container 1A. 1 stock management means 2A and 2nd stock management means 2B attached to the second material storage container 1B, a weighing device 3 for weighing each material, and a rubber compound in which each material weighed by the weighing device 3 is blended The first conveying means 4 for storing 5 in a container and conveying it to the next process, the blending amount management means 2C attached to the first conveying means, and the rubber compound 5 conveyed by the first conveying means 4 A first processing device 6 for processing the first processing device, a second processing means 7 for storing the first processed product (first processing rubber) 8 processed by the first processing device in a container and transporting it to the next step, 1st product attached to the 2nd conveyance means 7 A condition management means 2D, a second processing device 9 for processing the first processed rubber 8 transported by the second transport means 7, and a second workpiece 11 processed by the second processing device 9 are stored in a container. Then, the third transport means 10 for transporting to the next process, the second manufacturing condition management device 2E attached to the third transport means 10, and the weighing device 3 include the first stock management means 2A and the second stock management means 2A. The contents recorded in the inventory management means 2B and the blending quantity management means 2C, the contents recorded by the first processing device 6 in the first manufacturing condition management means 2D, and the second processing device 9 as the second manufacturing condition management means The management apparatus 12 is configured to collectively manage the contents recorded in 2E.
[0031]
In addition, the arrow which connects between each component shown in FIG. 1 has shown the direction which delivers the information required for management, and the thing which has the arrow at both ends shall perform delivery in two ways.
[0032]
2 to 4 are schematic diagrams for explaining a material inventory management method and a compounding amount management method in the rubber manufacturing system of this embodiment.
[0033]
2, 301 is a weighing means (balance), 302 is a first information read / write means (card reader / writer), 1201 is a management means (computer), 1202 is a card reader, and in FIG. 3, 201 is an IC chip, 202 is a second transmission / reception means (antenna coil), 203 is a card-like substrate, 204 is an information recording means, 205 is a signal conversion means, 206 is a signal processing means, 207 is a power conversion means, 1202A is a controller, and 1202B is a first transmission / reception. Means.
[0034]
Hereinafter, the material inventory management method and the blending ratio management method in the rubber manufacturing system of the present embodiment will be described with reference to FIGS.
[0035]
First, each material used for rubber production in this example is stored in the first material storage container 1A and the second material storage container 1B shown in FIG. The first stock management means 2A and the second stock management means 2B are attached to the first material storage container 1A and the second material storage container 1B, respectively. In FIG. 2, only two material storage containers are shown, but in actual rubber production, main rubber, stearic acid used as an accelerator or dispersant, zinc white used as a vulcanization accelerator, coloring Many types of materials such as carbon black used as an agent and reinforcing agent, sulfur used as a vulcanizing agent, vulcanization accelerator, anti-aging agent, and antioxidant are used, and each material is shown in FIG. Such a stock management means is stored in a material storage container.
[0036]
As shown in FIG. 3A, the first inventory management means 2A and the second inventory management means 2B have an IC card 201 and a second transmission / reception means (antenna coil) 202 for wireless communication having an insulating card-like base. It consists of a non-contact type IC card 2 bonded to a material 203.
[0037]
As shown in FIG. 3B, the IC chip 201 adhered to the IC card 2 receives information received by the antenna coil 202 and information recording means 204 on which management information is recorded. The signal conversion means 205 which demodulates the signal transmitted from the IC card 2 to the signal of the frequency of wireless communication, and the processing such as information writing and reading to the information recording means 204 Signal processing means 206 for performing the above and power conversion means 207 for generating power for operating the IC chip 201. In the non-contact type IC card 2 used in the present embodiment, for example, for information exchange with the management device 12, information read / write means (card reader / writer) comprising a controller 1202A and first transmission / reception means 1202B. Information is transmitted / received to / from 1202 by wireless communication, and information recorded in the information recording unit 204 is transferred to management unit 1201 such as a computer.
[0038]
The information recording means 204 of the first inventory management means 2A and the second inventory management means 2B is, for example, an EEPROM (Electrical Erasable and Programmable Read Only Memory). The EEPROM is a large-capacity memory having addresses A1 to An as shown in FIG. 4A. For example, a unique number (serial number) of an IC chip or the like is recorded at the address A1. Assume that writing to the address A2 is disabled. For example, the name of the medicine (material name) stored at the address A3, the identification number (lot number) of the medicine (material) at the address A4, the arrival date at the address A5, the arrival amount (initial storage amount) at the address A6, the address The usage status such as the usage date and usage amount is written in the order of A7 and address A8, and the current remaining amount is recorded at address An.
[0039]
The name of the material, the lot number of the material, the date of arrival, and the amount received are recorded in the inventory management means attached to the material storage container received from the manufacturing factory for each material. When the first material storage container 1A containing each material, for example, raw rubber, is received, as shown in FIGS. 2 and 3B, first, the card reader 1202 is used to The material name, material lot number, arrival date and amount received are read from the first inventory management means (IC card) 2A attached to the first material storage container 1A, and the information is recorded in the management means 1201. This operation is performed every time a new material is received and recorded in the management means 1201, whereby the management device 12 can collectively manage the arrival date or the amount of arrival of all materials used for rubber production. it can.
[0040]
Next, an actual rubber manufacturing process is started, and each of the received materials is weighed by the weighing device 3 to be taken out from the respective material storage containers and blended at a predetermined ratio. At this time, the kind and blending ratio of materials necessary for manufacturing the target rubber product are selected in advance and input to the measuring means 301. As for the input to the weighing unit 301, for example, an operator directly inputs the weighing unit 301 in accordance with instructions prepared in advance. Further, when the blending ratios of several types of rubber products are recorded in the management means 1201 and the operator designates the types of rubber products with the weighing means 301, the necessary types of materials and blending ratios are obtained from the management means 1201. The information may be transferred to the weighing means 301.
[0041]
Next, for example, the first material storage container 1A is brought close to the first information reading / writing means (card reader / writer) 302 provided in the weighing device 3, and the information recording means 204 of the first inventory management means 2A is moved to the information recording means 204. The information of the recorded material name, arrival date and arrival amount (initial storage amount) is read out. At this time, it is possible to confirm that the material used for manufacturing the target rubber is obtained by comparing the read information on the material name with the information input to the measuring unit 301. Further, it is possible to confirm whether or not an amount necessary for manufacturing the target rubber product is stored in the first material storage container 1A based on the information on the amount received (initial storage amount). When the amount of the material stored in the first material storage container 1A is insufficient, a material having the same condition such as the arrival date stored in another material storage container is added, or the first material storage container 1A is added. The amount of other materials is adjusted according to the amount contained and the proportion of the mixture. At this time, since the quality of the material that has passed for a long time from the date of arrival may be deteriorated, the weighing means 301 does not use the material after a certain period of time when the date of arrival is read. It is also possible to set.
[0042]
After the confirmation of the material, the weighing means (balance) 301 weighs a predetermined weight, for example, 100 kg of the main rubber, and puts it into a predetermined transport container. Since this weighing is generally performed manually by an operator, it is rarely possible to weigh exactly 100 kg, and a slight error actually occurs. As shown in FIG. 2, for example, an address A8 of the information recording unit 204 of the first inventory management unit 2A is used to determine the actual amount and date of extraction including this error via the first information read / write unit 302 as shown in FIG. Write to. At the same time, a value obtained by subtracting the removal amount from the arrival amount (initial storage amount) recorded in the information recording unit 204 is overwritten on the address An of the information recording unit 204 as a new remaining amount. In this writing, for example, after the material is taken out from the first material storage container 1A, the portion of the first inventory management means (IC card) 2A of the first material storage container 1A is again put into the first information writing means (card (Reader / writer) 302. Thus, immediately after the material is taken out from each material storage container, the amount taken out to the inventory management means (IC card) attached to each material storage container and the amount currently stored (remaining amount) are recorded. Thus, the inventory quantity can be managed for each material storage container. The take-out amount recorded in the information recording unit 204 of the first inventory management unit 2A and the currently stored amount (remaining amount) are also recorded in the management unit (computer) 1201 of the management device 12.
[0043]
For the remaining materials, for example, a predetermined weight is weighed from the second material storage container 1B and stored in the transport container, and information such as the removal amount and the remaining amount is stored in the second stock management means. 2B and the management unit 1201.
[0044]
As described above, each time the material is taken out from each material storage container, the used weight and the remaining amount are recorded in the inventory management means (IC card) attached to each material storage container and also recorded in the management means 1201. Thus, the inventory status of a plurality of materials used for the rubber production can be managed collectively.
[0045]
The rubber compound 5 made of a plurality of types of materials weighed by the metering means 301 and stored in the transport container is transported to the next step by the first transport means 4 provided with the blend amount management means 2C.
[0046]
The blend amount management means 2C provided in the first transport means 4 is composed of an IC card 2 having the same configuration as the inventory management means. For example, as shown in FIG. 4B, the information recording unit 204 of the blend amount management unit 2C includes a product name at the address A3, a product identification number (lot number) at the address A4, a work date at the address A5, In order of address A6 and address A7, the material name and the amount used (mixing ratio) of the material contained in the rubber compound 5 stored in the first conveying means 4 are written, and the address An contains the rubber compound 5 The total weight is recorded. The writing of each information at this time is the same as in the case of the inventory management means, and the mixing amount management means 2C provided in the first transport means 4 is brought close to the first information read / write means 302. The rubber compound 5 accommodated in the first conveying means 4 is conveyed to an apparatus for performing the next step together with information on the type and proportion of the material contained in the rubber compound 5.
[0047]
As described above, in the material management method in the rubber manufacturing process of the present embodiment, stock management means (non-contact type IC card) is attached to a material storage container for storing each material used for rubber manufacturing, The inventory management means is brought close to dedicated information read / write means (card reader / writer) and the amount and remaining amount of material taken out from the material storage container are recorded, whereby the remaining amount (inventory amount) for each material storage container. ) Can be managed and the replenishment time can be grasped. Moreover, before taking out material from the said material storage container, use of the wrong material can be prevented by reading the kind of material with the said information reading means. Further, by recording the date of arrival of the material in the stock storage means and reading it out, the deterioration status of the material used can be grasped, and the quality of the material can be controlled. Further, by recording the information recorded in each of the inventory management means in the management means 1201 such as a computer, in addition to the inventory management for each material storage container, the inventory management and quality control of the whole material to be used. Can be done.
[0048]
Also, the first conveying means 4 for storing and conveying the rubber compound 5 blended by measuring a predetermined amount from each material storage container into the container, the compounding quantity management means having the same configuration as the inventory management means (Non-contact IC card) 2C is attached, and the amount of material contained in the rubber compound 5 is adjusted by bringing the compound amount management means 2C close to the information read / write means at the point where the rubber compound 5 is conveyed. By recording the type and blending ratio, the type and blending ratio of the material contained in the rubber blend 5 to be transported can be managed between the weighing device 3 and the transport destination of the first transport means 4.
[0049]
5 and 6 are schematic views for explaining a manufacturing condition management method in the rubber manufacturing system of this embodiment.
[0050]
In FIG. 5, 601 is a first kneading means, 602 is a second information reading / writing means, 901 is a second kneading means, 902 is a weighing means (balance), and 903 is a third information reading / writing means.
[0051]
Hereinafter, the manufacturing condition management method in the rubber manufacturing process of this embodiment will be described with reference to FIGS. 5 and 6.
[0052]
First, the said 1st conveyance means 4 which conveys the rubber compound 5 by which the multiple types of material was mix | blended along the said procedure is conveyed to the 1st processing apparatus 6 provided with the 1st kneading means 601. In the first processing device 6, first, the amount management unit (IC card) 2C is brought close to the second information read / write unit (card reader / writer) 602, and the kind of material contained in the conveyed rubber mixture 5 and The information on the blending ratio is read to confirm whether the designated rubber mixture 5 has arrived. After confirming the rubber mixture 5, the compound 5 is put into the first kneading means 601, and kneading conditions such as temperature, rotation speed, time, etc. are set and kneaded. The kneading conditions at this time may be recorded in the first kneading means 601 in advance, or an operator may manually input the conditions. Further, a plurality of types of kneading condition patterns used in the first kneading means 601 are recorded in the management means 1201 and the mixing amount management means 2C attached to the first conveying means 4 is mixed with kneading condition. Information for designating a pattern may be recorded, the recorded pattern designation information may be read, and designated kneading conditions may be transferred from the management unit 1201 to the kneading unit 601.
[0053]
The first processed product (first processed rubber) 8 after the kneading process in the first kneading means 601 is stored in a dedicated storage container and transferred to the next step by the second transfer means 7. . A first manufacturing condition management means (IC card) 2D similar to the blend amount management means 2C is attached to the second transport means 7, and the information recording means 204 of the first manufacturing condition management means 2D is attached to the second conveying means 7. Through the information read / write means 602, for example, as shown in FIG. 6A, the product name is at address A3, the product identification number (lot number) is at address A4, the work date is at address A5, and the work is at address A6. In addition to recording the start time, the kneading conditions (manufacturing conditions) are recorded in the order of address A7, address A8, and address A9. The recording method at this time is the same as the method of recording in the blend amount management means 2C, and the first manufacturing condition management means 2D of the second transport means 7 is approached to the second information read / write means 602 and is written.
[0054]
Further, the same information as the kneading condition information recorded in the information recording means 204 of the first manufacturing condition management means 2D is also transferred to and recorded in the management means 1201 of the management device 12. The information on the kneading conditions recorded in the management unit 1201 is associated with the material type and remaining amount (inventory status), the blending ratio of the rubber compound 5 and the like previously recorded in the management unit 1201. The quality of the first processed rubber 8 can be controlled based on the source of the material used for the first processed rubber 8 currently conveyed by the second conveying means 7 and the blending ratio.
[0055]
Next, the first processing rubber 8 accommodated in the second transport means 7 is transported to the second processing device 9 as shown in FIG. In the second processing apparatus 9, the first manufacturing condition management means (IC card) 2D attached to the second transport means 7 is brought close to the third information read / write means (card reader / writer) 903 and transported. The kneading conditions (manufacturing conditions) of the first processed rubber 8 are read and confirmed. Thereafter, the first processed rubber 8 is put into the second kneading means 901. When kneading, for example, a vulcanizing agent such as sulfur, a vulcanization accelerator, or the like may be added in order to obtain characteristics suited to the purpose of use. In such a case, as shown in FIG. 5, the second processing apparatus 9 is provided with a measuring means 902 having the same configuration as the measuring means 301, and the material to be added is measured, and the second kneading is performed. The unit 901 is charged. The stock management container as shown in FIGS. 2 and 3 is also attached to the material storage container storing the material to be used at this time, and is taken out by an information read / write device (not shown) provided in the weighing means 902. The amount and remaining amount are recorded.
[0056]
When the blending of the first processed rubber 8 and the additive is finished, the first processed rubber 8 is kneaded by setting the kneading conditions such as the temperature, the rotation speed, and the time of the second kneading means 901. The kneading conditions at this time are the same as those of the first kneading means 601, and may be recorded in advance in the second kneading means 901, or the operator may manually input the conditions. Also, a plurality of types of condition patterns are prepared in advance in the management means 1201, and information for specifying the kneading conditions is recorded in the first manufacturing condition management means 2D attached to the second transport means 7. Alternatively, information specifying the kneading conditions may be read by the third information read / write unit 903 and a pattern of the specified kneading conditions may be transferred from the management unit 1201 to the second kneading unit 901.
[0057]
The second processed material (second processed rubber) 11 after the kneading process in the second kneading means 901 is stored in a dedicated container and conveyed to the next step by the third conveying means 10. Second manufacturing condition management means (IC card) 2E similar to the first manufacturing condition management means 2D is attached to the third transport means 10, and the information recording means 204 of the second manufacturing condition management means 2E is attached. For example, as shown in FIG. 6B, the product name is assigned to address A3, the product identification number (lot number) is assigned to address A4, the work date is assigned to address A5, and the address A6 is entered via the information read / write means 903. In addition to the type of additive (drug name) and amount used, the work start time is recorded at address A7, and the conditions during kneading (manufacturing conditions) are recorded in the order of address A8, address A9, and address A10. The recording method at this time is the same as the recording method of the first manufacturing condition management means 2D, and is performed by bringing the second manufacturing condition management means 2E closer to the third information read / write means 903. In addition, information having the same content as the type and amount of additive and kneading conditions recorded in the information recording means 204 of the second production condition management means 2E is also recorded in the management means 1201 of the management device 12. The manufacturing conditions recorded in the management means 1201 are the material type and remaining amount (stock status), the blending ratio of the rubber compound 5, the first kneading means previously recorded in the management means 1201. In association with the kneading conditions in 601, quality control can be performed based on the origin of the material used for the second processed rubber 11 currently being conveyed by the third conveying means 10, the blending ratio, and the like. Yes.
[0058]
As described above, according to the manufacturing condition management method of the present embodiment, the same non-contact type as the inventory management unit is used for the conveyance unit that conveys the workpiece generated in each step to the apparatus that performs the next step. By attaching the IC card and recording on the IC card what conditions the workpiece to be transported is recorded, the manufacturing conditions can be accurately transmitted to the next process. Improves quality reliability. In addition, when performing the next step, the processing conditions in the previous step can be accurately grasped, so that it is easy to adjust the additives and the processing conditions.
[0059]
In addition, the mixing ratio of materials and processing conditions (manufacturing conditions) in each process are recorded in the IC card and transferred to management means such as a computer, so that management information independent between the processes is stored in all processes. The entire manufacturing process can be managed collectively. For example, the management information recorded in the manufacturing condition management means (IC card) of the transport means for transporting the final processed product (rubber product) is read out and inquired by the management means to be used in the rubber product It is possible to check the quality of existing materials and the manufacturing conditions in intermediate processes. Therefore, the quality reliability of the processed product is further improved.
[0060]
In this embodiment, the inventory information of the material or the manufacturing conditions are recorded on the IC card attached to each of the material storage container and the conveying means to control the quality of the material or the processed material during the manufacturing process. Although the management method has been described, the present invention is not limited to this, and the material storage container and the transport means can also be managed. In many cases, the material storage container and the transport means use a special material in order to maintain a constant quality of the material or the workpiece. The material storage container is collected at each material manufacturing plant when the stored material is exhausted and is replenished with new material. If the material storage container is not recovered, the material storage container is stored and shipped. A new container must be prepared for this purpose. The conveying means is also returned to the previous step in order to convey the next rubber compound or processed material after conveying the rubber compound or processed material to the next step. However, if the transport means is not returned, a new transport means must be prepared. Therefore, in addition to the manufacturing cost of the rubber product, there is a management cost for the material storage container and the conveying means, and as a result, the cost of the rubber product increases. Therefore, when the information on the storage location of the material storage container and the transport destination of the transport means is recorded in each management means (IC card) attached to the material storage container and the transport means, and is collected or returned In addition, by managing where the information is read from the IC card and returned from, it is possible to prevent the material storage container and the transport means from being lost or uncollected, and to reduce the management cost.
[0061]
In this embodiment, the rubber manufacturing process has been described as an example. However, the present invention is not limited to this, and a management system that manages a manufacturing process of a workpiece to be manufactured under complicated processing conditions using a plurality of types of materials. Needless to say, it can be applied.
[0062]
The present invention has been specifically described above based on the above-described embodiments. However, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the scope of the present invention. .
[0063]
【The invention's effect】
The effects obtained by typical ones of the inventions disclosed in the present invention will be briefly described as follows.
[0064]
(1) In the manufacturing process of products using many kinds of materials, the stock quantity of each material can be managed efficiently.
[0065]
(2) In a manufacturing process of a product that performs complicated processing using many kinds of materials, manufacturing conditions in each manufacturing process can be easily managed.
[0066]
(3) In a rubber manufacturing system that performs complex processing using many types of materials, inventory management and manufacturing conditions of each material can be easily managed.
[0067]
(4) In a rubber manufacturing system that performs complex processing using many types of materials, it is possible to collectively manage the inventory and manufacturing conditions of each material.
[Brief description of the drawings]
FIG. 1 is a schematic block diagram showing a schematic configuration of a rubber production system according to an embodiment of the present invention.
FIG. 2 is a schematic diagram for explaining an inventory management method and a compounding amount management method in the rubber production system of the present embodiment.
FIG. 3 is a schematic diagram for explaining an inventory management method and a compounding amount management method in the rubber manufacturing system of the present embodiment.
FIG. 4 is a schematic diagram for explaining an inventory management method and a compounding amount management method in the rubber manufacturing system of the present embodiment.
FIG. 5 is a diagram for explaining a manufacturing condition management method in the rubber manufacturing system of the present embodiment.
FIG. 6 is a diagram for explaining a manufacturing condition management method in the rubber manufacturing system according to the present embodiment.
[Explanation of symbols]
1A First material storage container
1B Second material storage container
2 IC card
2A First inventory management means
2B Second inventory management means
2C Compounding amount management means
2D first manufacturing condition management means
2E Second manufacturing condition management means
201 IC chip
202 Second transmitting / receiving means
203 Card-like board
204 Information recording means
205 Signal conversion means
206 Signal processing means
207 Power conversion means
3 Weighing device
301 Weighing means (balance)
302,602,903,1202 Information read / write device (card reader / writer)
4 First transport means
5 Formulation
6 First processing equipment
601 First kneading means
7 Second transport means
8 First workpiece
9 Second processing equipment
901 Second kneading means
902 Weighing means
10 Third conveying means
11 Second workpiece
12 Management device
1201 Management means (computer)
1202 Card reader
1202A controller
1202B first transmission / reception means
A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, An address

Claims

A material storage container for storing a plurality of types of materials used for manufacturing a workpiece, a weighing device for measuring the weight of each material, and a composition containing each of the measured materials stored in a container for transport First processing means for processing, a processing device for processing the compound transported by the first transporting device, and a second transporting means for storing and transporting the processed rubber processed by the processing device in a container. A workpiece manufacturing management system,
  The material storage container is provided with a first IC card for recording information on the type of material managed by the inventory management means and the remaining amount stored therein,
  The weighing device comprises first information read / write means for reading the first information written on the first IC card,
  The first conveying means is provided with a second IC card for recording information on the type and proportion of materials contained in the composition managed by the composition management means,
  The second transport means is provided with a third IC card for recording information on the processing conditions of the workpiece managed by the processing condition management means,
  Each of the first IC card, the second IC card, and the third IC card has a recording unit capable of reading and writing the information to be managed and a signal transmission / reception unit (antenna coil) for wireless communication,
  Inventory management means for managing the stock of the material stored in the material storage container, blend management means for managing the type and blending ratio of each material contained in the blend transported by the first transport means, A workpiece manufacturing method comprising: a processing condition management unit that manages a processing condition of the workpiece conveyed by the second conveying unit; and a computer capable of transferring the management information from the signal transmission / reception unit Management system.

In the workpiece manufacturing management system according to claim 1,
  The type and amount of material recorded on the first IC card and the remaining amount;
  Kinds and blending ratios of materials contained in the blend recorded on the second IC card,
  Each of the processing conditions of the workpiece recorded on the third IC card is managed in a lump.

In the workpiece manufacturing management system according to claim 1 or 2,
The weighing device measures the material stored in the material storage container by a specified amount and stores the material in the first transport unit;
Reading the type of material recorded on the first IC card and the remaining amount of the material before taking out the material from the material storage container, and recording the taken-out amount and remaining amount of the material after weighing on the first IC card And a first information read / write unit that records on the second IC card the type and proportion of the material contained in the formulation stored in the first conveying unit.