Flow of the production - IZUMI CHAIN MFG.CO.,LTD.

Flow of the production

Process of manufacture of the chain

Molding of each part of chains

Molding of each part

部品1班ではリンクプレート、部品2班ではブシュ・ローラ・リベットピンをμ単位の精度で部品を成形 品質とコストダウンを徹底追求するため、プレス成形において順送金型と徹底した自動化を推進 24時間稼働設備で品質不具合の無い、無人連続運転を実現

Part 1st group mold a link plate (Chinese brocade). Part 2nd group mold a bush roller rivet pin (complete set). Both mold a part with the precision of the μ unit.
We push forward an order remittance type and thorough automation in press molding and thoroughly pursue quality and reduction in cost.
We manage the everyday quality confirmation and facilities in the operation facilities for 24 hours and realize unmanned consecutive driving without the quality malfunction.

Washing (preprocessing) of each part of chains

Washing (preprocessing)

部品の脱脂作業、仕上磨き作業、寸法だし作業、乾燥などを研磨班で行っている 2交替勤務制で24時間稼働 寸法出し作業においてμ単位の寸法管理を徹底

In the polishing group, We works on the removal of fat of the part in 2 gliding shift system and I finish it and perform polishing work, dimensions check work, drying.
We carry out the dimensions management of the μ unit thoroughly and, in dimensions check work, pursue quality.

Thermo-mechanical treatment of each part of chains

Thermo-mechanical treatment

3交替勤務制で大型連続炉を24時間体制で焼入・焼戻作業を担当している熱処理班 連続炉を最大限有効に引き出せるように管理し、設備の点検・保全、設備の改善を行う 省エネ・コストダウン・品質向上に力を入れている

In the heat-treatment group, We works on quick cooling, fried return for 24 hours in 3 gliding shift system in large consecutive furnaces.
Because energy consumption is many facilities, We improves check, the maintenance of facilities, facilities and manage it to be able to draw a continuation furnace effectively to the maximum and lay emphasis on energy saving reduction in cost, quality improvement.

Finishing (postprocessing) of chains

Finishing (postprocessing)

研磨班で部品の脱脂作業、仕上磨き作業、寸法だし作業、乾燥などを後処理で行う μ単位の寸法管理を徹底し品質を追求 ショットピーニング=塑性変形による加工硬化、圧縮残留応力の付与を図る処理

As well as a washing (preprocessing) trip, We works on the removal of fat of the part in a Washing (preprocessing) and finish it and do polishing work, dimensions check work, drying and perform finish work (postprocessing) here.
We carry out the dimensions management of the μ unit thoroughly, and in dimensions check work, pursue quality.
We perform processing hardening by the plastic deformation, handling of compression residual stress "shot peening" to plan a grant here.

Assembling of chains

Assembling

精度の高い組み立てマシーンで 24時間稼働設備で品質不具合の無い、無人連続運転を実現 マシーンでチェーンの不良箇所がないかどうかをチェックしている

Packing of chains

Packing

製品化したチェーンを積み上げているところ チェーン梱包ラインの様子 包装・梱包される様子