JP2004082146A

JP2004082146A - Molding flask carrying method and molding flask carrying device

Info

Publication number: JP2004082146A
Application number: JP2002243949A
Authority: JP
Inventors: Satomi Kanehira; 金平　諭三
Original assignee: Metal Engineering KK
Current assignee: Metal Engineering KK
Priority date: 2002-08-23
Filing date: 2002-08-23
Publication date: 2004-03-18
Anticipated expiration: 2022-08-23
Also published as: JP3631733B2

Abstract

<P>PROBLEM TO BE SOLVED: To provide a molding flask carrying method and a molding flask carrying device of a simple and inexpensive configuration for reliably carrying a plurality of molding flasks placed on a carrying passage in a space-saving manner. <P>SOLUTION: In order to carry a predetermined quantity of molding flasks which are continuously arranged along a carrying passage, a carry-in side engagement body and a carry-out side engagement body are mounted on a moving body which is reciprocated by a predetermined distance in an advancing/retracting manner. The carry-in side engagement body is engaged with the molding flask to push the molding flask located at the carry-in position in the downstream direction, and the carry-out side engagement body is engaged with the molding flask to regulate the downstream movement of the molding flask located at the downstream end position. In this condition, the plurality of molding flasks located between the carry-in position and the downstream end position are carried by the predetermined distance by moving the moving body for a predetermined distance. After the carry-in side engagement body and the carry-out side engagement body are detached from the molding flasks moved to the upstream end position and the carry-out position, the moving body is retracted by the predetermined distance. <P>COPYRIGHT: (C)2004,JPO

Description

【０００１】
【発明の属する技術分野】
本発明は、複数の鋳枠を搬送する方法及びその方法を実施する鋳枠搬送装置に関するものである。
【０００２】
【従来の技術】
従来、複数の鋳枠を搬送する装置として、鋳枠が夫々載置された複数の台車を鋳枠搬送レールに移動可能に載置し、前記鋳枠搬送レールの上流端位置および下流端位置に隣接する搬入位置および搬出位置に台車を移送する台車搬送装置を前記鋳枠搬送レールの両端部に配置し、前記搬入位置に位置する台車を搬入位置から上流端位置に押動する電動サーボ式押出しシリンダと、下流端位置に位置する台車に当接し、該台車が下流端位置から搬出位置に移動する速度延いては搬送レール上の台車の移動速度を減殺する電動サーボ式クッションシリンダとを設けたものが、実用新案登録第２５５９３３４号公報に記載されている。
【０００３】
【発明が解決しようとする課題】
しかしながら、上記従来の鋳枠搬送装置では、鋳枠搬送時に、電動サーボ式押出しシリンダにより押動された複数の台車の移動速度を減殺するために、高価な電動サーボ式クッションシリンダを設けなければならず、設備費用が増大する問題があった。また、搬入位置および搬出位置の外側に細長い電動サーボ式の押出しシリンダおよびクッションシリンダを直列に設置するために、広いスペースが必要となり、作業通路等の障害になることがあった。さらに、電動サーボ式押出しシリンダおよび電動サーボ式クッションシリンダの制御において、インバータモータにより送りねじ機構を介して進退移動されるロッドの移動距離を検出するためのエンコーダ、インバータモータに印加する励磁電圧の周波数を変換するインバータ、およびエンコーダとインバータなどを関係付けて制御する制御装置等が各シリンダに必要となり、設備費用の増加と制御、調整に時間と労力を要する問題があった。
【０００４】
本発明は、かかる従来の不具合を解消するためになされたもので、搬送路上に載置された複数の鋳枠を確実に搬送することができるスペースをとらない簡単かつ安価な構成の鋳枠搬送方法及び装置を提供することである。
【０００５】
【課題を解決するための手段】
上記の課題を解決するため、請求項１に記載の発明の構成上の特徴は、複数の鋳枠を搬送路に沿って連続的に配置し、前記搬送路の上流端位置に直列に配置された搬入位置に位置する鋳枠を前記搬送路の上流端位置に搬入すると同時に、前記搬送路の下流端位置に位置する鋳枠を該下流端位置に直列に配置された搬出位置に搬出して鋳枠を一定量ずつ順次搬送する鋳枠搬送方法において、一定量往復動される移動体に搬入側係合体および搬出側係合体を装架し、前記搬入側係合体が前記搬入位置に位置する鋳枠を下流方向に押動するために該鋳枠と係合し、かつ前記搬出側係合体が下流端位置に位置する鋳枠の下流方向移動を規制するために該鋳枠と係合した状態で、前記移動体を一定量前進させて前記搬入位置、下流端位置および該両位置間に位置する複数の鋳枠を一定量搬送し、搬入側係合体および搬出側係合体を上流端位置及び搬出位置に移動された鋳枠から離脱させた後に、前記移動体を一定量後退させることである。
【０００６】
請求項２に係る発明の構成上の特徴は、複数の鋳枠を搬送路に沿って連続的に配置し、前記搬送路の上流端位置に直列に配置された搬入位置に位置する鋳枠を前記搬送路の上流端位置に搬入すると同時に、前記搬送路の下流端位置に位置する鋳枠を該下流端位置に直列に配置された搬出位置に搬出して鋳枠を一定量ずつ順次搬送する鋳枠搬送装置において、前記搬送路方向に移動可能に装架され駆動装置により一定量往復動される移動体と、該移動体に進退可能に装架された搬入側係合体および搬出側係合体と、前記搬入側係合体が前記搬入位置に位置する鋳枠を下流方向に押動するために該鋳枠と係合し、かつ前記搬出側係合体が前記下流端位置に位置する鋳枠の下流方向移動を規制するために該鋳枠と係合する係合位置と、前記上流端位置および前記搬出位置に位置する鋳枠から離脱する離脱位置との間で、前記搬入側係合体および搬出側係合体を進退移動させる進退装置とを設けたことである。
【０００７】
請求項３に係る発明の構成上の特徴は、請求項２に記載した鋳枠搬送装置を少なくとも２列、平行に配置し、前記移動体を一定量往復動させる駆動装置の駆動モータを共用して一の駆動モータにより前記２列の鋳枠搬送装置の移動体を往復動させるようにしたことである。
【０００８】
請求項４に係る発明の構成上の特徴は、請求項２又は３において、前記駆動装置の駆動モータをサーボ制御モータまたはインバータ制御モータとしたことである。
【０００９】
請求項５に係る発明の構成上の特徴は、請求項２乃至４のいずれかにおいて、前記駆動装置を、前記搬入位置又は搬出位置を挟んで前記搬送路の外側に設置したことである。
【００１０】
【発明の作用・効果】
上記のように構成した請求項１に係る発明においては、搬送路に沿って連続的に配置された鋳枠を一定量ずつ搬送するために、一定量往復動する移動体に搬入側係合体および搬出側係合体を進退可能に装架する。搬入位置に位置する鋳枠を下流方向に押動するために搬入側係合体を該鋳枠と係合させ、下流端位置に位置する鋳枠の下流方向移動を規制するために搬出側係合体を該鋳枠と係合させる。その状態で移動体を一定量前進させて搬入位置、下流端位置および該両位置間に位置する複数の鋳枠を一定量搬送する。搬入側係合体および搬出側係合体を上流端位置及び搬出位置に移動された鋳枠から離脱させた後に、移動体を一定量後退させる。これにより、高価な電動サーボ式クッションシリンダを設けることなく、スペースをとらない簡単かつ安価な方法で複数の鋳枠を搬送路に沿って一定量ずつ確実に搬送することができる。
【００１１】
上記のように構成した請求項２に係る発明においては、搬送路に沿って連続的に配置された鋳枠を一定量ずつ搬送するために、一定量往復動する移動体に搬入側係合体および搬出側係合体を進退可能に装架する。搬入側係合体が搬入位置に位置する鋳枠を下流方向に押動するために該鋳枠と係合し、かつ搬出側係合体が下流端位置に位置する鋳枠の下流方向移動を規制するために該鋳枠と係合する係合位置に、搬入側係合体および搬出側係合体を進退装置により前進させた状態で、移動体を駆動装置により一定量前進させて、搬入位置、下流端位置および該両位置間に位置する複数の鋳枠を一定量搬送する。搬送後に、搬入側係合体および搬出側係合体を上流端位置および搬出位置に位置する鋳枠から離脱する離脱位置に後退させてから移動体を一定量後退させる。これにより、高価な電動サーボ式クッションシリンダを設けることなく、搬入側係合体および搬出側係合体を連接する複数鋳枠の両端の鋳枠に係脱させ、かつ移動体を一つの駆動装置により往復動させるというスペースをとらない安価で調整が容易な構成により、複数の鋳枠を搬送路に沿って一定量ずつ確実に搬送することができる。
【００１２】
上記のように構成した請求項３に係る発明においては、請求項２に記載した鋳枠搬送装置を少なくとも２列、平行に配置する。該２列の鋳枠搬送装置の各移動体を一つの駆動モータにより一定量往復動させるので、大幅に設備費用が低減したスペースをとらない構成により、各鋳枠搬送装置において複数の鋳枠を搬送路に沿って一定量ずつ確実に搬送することができる。
【００１３】
上記のように構成した請求項４に係る発明においては、移動体をサーボ制御モータまたはインバータ制御モータにより一定量往復動させるので、構成が簡単かつ安価で調整が容易になるとともに、複数の鋳枠の移動速度を容易に制御することができる。
【００１４】
上記のように構成した請求項５に係る発明においては、搬入位置又は搬出位置を挟んで搬送路の外側に駆動装置を設置したので、複数の鋳枠搬送装置が狭い間隔で並列に設置されているような場合に困難である駆動部の点検、調整等が容易になる。また、搬送路に沿って鋳枠が搬送される途中で、鋳枠内に造型された鋳型に注湯される場合、溶湯が駆動装置にかかって焼損することを防止することができる。
【００１５】
【実施の形態】
以下本発明の第１の実施形態に係る鋳枠搬送方法及びその方法を実施するための鋳枠搬送装置１０を図面に基づいて説明する。図１，２に示すように、鋳枠搬送装置１０では、一対の台車レール１１が搬送路１２としてベース１３上に高架状に敷設され、台車レール１１上を鋳枠１４が載置された複数の台車１５が搬送方向に一定量づつ搬送される。搬送路１２の上流端位置１６に直列に配置された搬入位置１７に鋳枠１４を載置した台車１５を移送するために、台車移送装置１８の一部であるレール１９が搬入位置１７を通過して搬送路１２と直角方向に敷設されている。台車レール１１と平行な一対のレール２０が上面に設けられたトラバーサ２１が、レール１９上を転動し、上流端位置１６と整列する搬入位置１７に鋳枠１５が載置された台車を移送する。トラバーサ２１が搬入位置１７に位置すると、レール２０が台車レール１１と整列し、レール２０上に載せられた台車１５が、台車レール１１上に載置された複数の台車１５と連接する。
【００１６】
搬送路１２の下流端位置２３に直列に配置された搬出位置２４に搬出された台車１５を移送するために、搬出側台車移送装置２５のレール２６が搬出位置２４を通過して搬送路１２と直角方向に敷設されている。台車レール１１と平行な一対のレール２７が上面に設けられたトラバーサ５７が、レール２６上を転動し、搬出位置２４に位置するトラバーサ５７上に搬出された台車１５を搬出位置２４から移送する。トラバーサ５７が搬出位置２４に位置すると、レール２７が台車レール１１と整列し、台車１５が台車レール１１からレール２７に搬出される。
【００１７】
台車レール１１の上流端位置１６および下流端位置２３の下方部分には、搬入側移動体２８および搬出側移動体２９がベース１３に固定された案内体３０，３１に搬送方向に摺動可能に夫々支承され、連結ロッド３２によって互いに連結されている。搬出側移動体２９の下面にはラックギヤ３３が刻設され、該ラックギヤ３３がベース１３に固定されたサーボ制御モータ３４の出力軸に嵌着されたピニオン３５に噛合されている。連結ロッド３２により連結された搬出側移動体２９および搬入側移動体２８からなる移動体を一定量往復動させる駆動装置２２は、サーボ制御モータ３４、ラックギヤ３３、ピニオン３５等により構成されている。なお、サーボ制御モータ３４に代えてインバータモータを使用してもよい。
【００１８】
搬入側移動体２８には、ベルクランク３６が、一端に形成した搬入側係合部３７が台車１５の下面に向かって進退するように回動可能に枢着されている。ベルクランク３６の他端は、搬入側移動体２８に枢支されたＬ字状リンク３８の一端にリンク３９により連結され、Ｌ字状リンク３８の他端は、搬入側移動体２８に回動可能に支承されたエアシリンダ装置４０のピストンロッドに枢支されている。エアシリンダ装置４０のピストンロッドが前進すると、Ｌ字状リンク３８が図３において時計方向に回動され、リンク３９を介してベルクランク３６が反時計方向に回動され、搬入側係合部３７が、搬入位置１７に位置する台車１５を下流方向に押動するために、該台車１５の前側下面に突設された突出部４１の後面と係合する係合位置に前進する。このとき、Ｌ字状リンク３８の先端部とリンク３９とが略一直線となり、トグル機構によりベルクランク３６が時計方向に回動して搬入側係合部３７が後退することがない。エアシリンダ装置４０のピストンロッドが後退すると、Ｌ字状リンク３８が図４において反時計方向に回動され、リンク３９を介してベルクランク３６が時計方向に回動され、搬入側係合部３７が上流端位置１６に搬入された台車１５の突出部４１から離脱する離脱位置に後退する。
【００１９】
搬出側移動体２９には、ベルクランク４２がベルクランク３６と線対称に回動可能に支承され、一端に形成した搬出側係合部４３が台車１５の下面に向かって進退するようになっている。ベルクランク４２はベルクランク３６と同様のリンク機構により搬出側移動体２９に回動可能に支承されたエアシリンダ装置により回動される。ベルクランク４２はエアシリンダ装置のピストンロッドの前進により時計方向に回動されて、搬出側係合部４３が下流端位置２３に位置する台車１５の下流方向移動を規制するために、該台車１５の後側下面に突設された突出部４１の前面と係合する係合位置に前進する。エアシリンダ装置のピストンロッドの後退により、ベルクランク４２が反時計方向に回動され、搬出側係合部４３が搬出位置２４に搬出された台車１５の突出部４１から離脱する離脱位置に後退する。
【００２０】
搬入側係合部３７が搬入位置１７に位置する鋳枠１４を載置した台車１５を下流方向に押動するために該台車１５と係合し、かつ搬出側係合部４３が下流端位置２３に位置する鋳枠１４を載置した台車１５の下流方向移動を規制するために該台車１５と係合する係合位置と、上流端位置１６および搬出位置２４に位置する台車１５から離脱する離脱位置との間で、搬入側係合部３７および搬出側係合部４３を進退移動させる進退装置４４は、エアシリンダ装置４０、ベルクランク３６，４２、リンク３９およびＬ字状リンク３８等で構成されている。
【００２１】
上記のように構成した第１の実施形態の作動を説明する。搬送路１２には、夫々鋳枠１４が載置された複数の台車１５が上流端位置１６から下流端位置２３に亙って連続的に載置されている。搬入側台車移送装置１８のトラバーサ２１がレール１９上を搬入位置１７に移送され、鋳枠１４を載置した台車１５を搬入位置１７に位置する。搬出側台車移送装置２５では空のトラバーサ５７が搬出位置２４に位置する。この状態で、搬入側移動体２８に装着された進退装置４４のエアシリンダ装置４０のピストンロッドが前進され、Ｌ字状リンク３８、リンク３９を介してベルクランク３６が反時計方向に回動され、搬入側係合部３７が搬入位置１７に位置する台車１５に突設された突出部４１の後面と係合する係合位置に前進される。
【００２２】
サーボ制御モータ３４が低速回転で起動され、ピニオン３５およびラックギヤ３３の噛合により搬出側移動体２９および連結ロッド３２で連結された搬入側移動体２８が、図１において左方に移動され、搬入側移動体２８に装架されて係合位置に前進された搬入側係合部３７が搬入位置１７に位置する台車１５を下流方向に押動し、上流端位置１６に位置する台車１５に小さなショックで当接させる。搬出側移動体２９が搬入位置１７と上流端位置１６に位置する各台車１５間の隙間Ｃより若干多い距離だけ移動したことが、サーボ制御モータ３４の回転量を検出するレゾルバ等の回転量検出装置により検出されると、搬出側移動体２９に装着された進退装置４４のエアシリンダ装置のピストンロッドが前進され、Ｌ字状リンク、リンクを介してベルクランク４２が時計方向に回動され、搬出側係合部４３が下流端位置２３に位置する台車１５に突設された突出部４１の前面と係合する係合位置に前進される。このように、搬入位置１７と上流端位置１６に位置する各台車１５が当接し、両台車間の隙間Ｃが無くなった状態で、搬出側係合部４３が前進されて下流端位置２３に位置する台車１５に突設された突出部４１の前面と係合するので、搬入側係合部３７と搬出側係合部４３との間に挟持された複数の台車１５は隙間の無い状態で連接され、移動中に前後の台車１５が離れたり当たったりすることが無く円滑に搬送される。
【００２３】
その後サーボ制御モータ３４の回転速度が高速回転まで漸増され、搬出側移動体２９が高速で移動される。搬出側移動体２９が一定量より僅かに少ない量だけ移動されたことが、回転量検出装置により検出されると、サーボ制御モータ３４が設定減速度で減速され、搬出側移動体２９が移動速度を漸減して移動され、一定量移動したことが回転量検出装置により検出されると、サーボ制御モータ３４延いては搬出側移動体２９が停止される。このとき搬出側移動体２９に装架され係合位置に前進された搬出側係合部４３が搬出位置２４に搬出される台車１５に係合して、後続する台車１５の移動速度を減殺して停止させる。このようにして、図５に示すように搬送路１２の上流端位置１６に直列に配置された搬入位置１７に位置する鋳枠１４を載置した台車１５が、搬送路１２の上流端位置１６に搬入されると同時に、搬送路１２の下流端位置２３に位置する台車１５が該下流端位置２３に直列に配置された搬出位置２４に搬出され、複数の台車１５が一定量ずつ順次搬送される。搬出側移動体２９の速度が増速するとき、搬入側移動体２８が連結ロッド３２を介して引張られ、係合位置に前進された搬入側係合部３７が搬入位置１７に位置する台車１５を下流方向に押動するので、長い連結ロッド３２には引張り力が作用し挫屈することがない。搬出側移動体２９の移動速度が減速するとき、係合位置に前進された搬出側係合部４３が搬出位置２４に搬出される台車１５に係合して、後続する台車１５の移動速度を減殺するので、連結ロッド３２には、搬入側移動体２８を引張る力のみが作用する。
【００２４】
複数の台車１５が一定量だけ搬送されると、進退装置４４のエアシリンダ装置のピストンロッドが後退され、Ｌ字状リンク、リンクを介してベルクランク３６，４２が回動され、搬入側係合部３７および搬出側係合部４３が後退されて上流端位置１６及び搬出位置２４に移動された台車１５から離脱される。その後に、サーボ制御モータ３４が逆転され、ラックピニオン機構により搬出側移動体２９および連結ロッド３２で連結された搬入側移動体２８が、図１において右方に一定量だけ後退される。
【００２５】
次に、第２の実施形態について図６，７に基づいて説明する。第２の実施形態は、第１の実施形態に係る鋳枠搬送装置１０を少なくとも２列、平行に配置し、各搬出側移動体２９を一定量往復動させる駆動装置２２の駆動モータを共用して一の駆動モータにより２列の鋳枠搬送装置１０の各搬出側移動体２９を往復動させるようにしたものである。各鋳枠搬送装置１０は第１の実施形態と同様であるので、詳細説明は省略し、一の駆動モータにより各搬出側移動体２９を一定量往復動させる機構について説明する。第１および第２鋳枠搬送装置１０ａ，１０ｂが並列に配置され、鋳枠１４を載置した台車１５を鋳枠搬送装置１０ａ，１０ｂの搬送路１２ａ，１２ｂの上流端位置１６ａ，１６ｂに直列に配置された搬入位置１７ａ，１７ｂに移送する搬入側台車移送装置１８のレール１９が、搬入位置１７ａ，１７ｂを通過して搬送路１２ａ，１２ｂと直角方向に敷設されている。第１および第２鋳枠搬送装置１０ａ，１０ｂの台車レール１１ａ，１１ｂと平行な一対のレール２０が上面に設けられたトラバーサ２１が、レール１９上を転動し、搬入位置１７ａ，１７ｂに鋳枠１５が載置された台車１５を選択的に移送する。
【００２６】
搬送路１２ａ，１２ｂの下流端位置２３ａ，２３ｂに直列に配置された搬出位置２４ａ，２４ｂに搬出された台車１５を移送するために、搬出側台車移送装置２５のレール２６が搬出位置２４ａ，２４ｂを通過して搬送路１２ａ，１２ｂと直角方向に敷設されている。台車レール１１ａ，１１ｂと平行な一対のレール２７が上面に設けられたトラバーサ５７は、レール２６上を転動し、搬出位置２４ａ，２４ｂに選択的に停止される。トラバーサ５７は搬出位置２４ａ，２４ｂでレール２７上に搬出された台車１５を次工程に移送する。
【００２７】
４５は搬送路１２ａ，１２ｂ間でベース１３に固定された駆動モータとしてのサーボ制御モータ４５で、減速装置４６に連結され、減速装置４６の両側に設けられた出力軸４６ａ，４６ｂはクラッチ４７ａ，４７ｂを介して伝達軸４８ａ，４８ｂに連結されている。伝達軸４８ａ，４８ｂはベース１３に固定された軸受部材４９ａ，４９ｂにより回転可能に軸承され、各先端部分に嵌着されたピニオン５０ａ，５０ｂが搬出側移動体２９ａ，２９ｂに刻設されたラックギヤ３３ａ，３３ｂに噛合されている。搬出側移動体２９ａ，２９ｂおよび連結ロッドで連結された搬入側移動体からなる移動体を一定量往復動させる駆動装置２２は、サーボ制御モータ４５、減速装置４６、伝達軸４８ａ，４８ｂ、ラックギヤ３３ａ，３３ｂ、ピニオン５０ａ，５０ｂおよびクラッチ４７ａ，４７ｂ等により構成されている。なお、サーボ制御モータ４５に代えてインバータモータを使用してもよい。
【００２８】
台車１５を載置したトラバーサ２１および空のトラバーサ５７が、例えば第１鋳枠搬送装置１０ａの搬入位置１７ａおよび搬出位置２４ａに位置しているとすると、鋳枠搬送装置１０ａの搬入側係合部および搬出側係合部が、搬入位置１７ａおよび下流端位置２３ａに位置する各台車１５と係合する係合位置に進退装置により前進される。鋳枠搬送装置１０ａの搬出側移動体２９ａに連結された伝達軸４８ａをクラッチ４７ａを接続してサーボ制御モータ４５に連結し、他方のクラッチ４７ｂを遮断する。サーボ制御モータ４５により搬出側移動体２９ａおよび連結ロッド３２ａで連結された搬入側移動体が、図６において左方に移動され、係合位置に前進された搬入側係合部が搬入位置１７ａに位置する台車１５を下流方向に押動して搬送する。搬入位置１７ａに位置する台車１５が、上流端位置１６ａに搬入されると同時に、下流端位置２３ａに位置する台車１５が搬出位置２４ａに搬出され、複数の台車１５が一定量ずつ順次搬送される。
【００２９】
台車１５を載置したトラバーサ２１および空のトラバーサ５７が、第２鋳枠搬送装置１０ｂの搬入位置１７ｂおよび搬出位置２４ｂに位置している場合は、鋳枠搬送装置１０ｂの搬入側係合部および搬出側係合部が、搬入位置１７ｂおよび下流端位置２３ｂに位置する各台車１５と係合する係合位置に進退装置により前進され、搬出側移動体２９ｂに連結された伝達軸４８ｂがクラッチ４７ｂによりサーボ制御モータ４５に連結され、前述と同様に、搬入位置１７ｂに位置する台車１５が、上流端位置１６ｂに搬入されると同時に、下流端位置２３ｂに位置する台車１５が搬出位置２４ｂに搬出される。
【００３０】
次に、第３の実施形態について図８に基づいて説明する。第３の実施形態は、鋳枠搬送装置１０の駆動装置２２を、搬入位置１７又は搬出位置２４を挟んで搬送路１２の外側に設置したものである。鋳枠搬送装置１０は第１の実施形態と同様であるので、詳細説明は省略し、駆動装置２２を搬送路１２の外側に設置した点について説明する。第３の実施形態では、搬出側移動体２９は下面にラックギヤ３３が刻設されることなく、接続ロッド５１によりラック体５２に連結されている。ラック体５２は、搬送路１２の延長線上において搬入位置１７又は搬出位置２４を挟んで搬送路１２の外側でガイド５３に摺動可能に装架されている。ラック体５２の下面にはラックギヤ５４が刻設され、該ラックギヤ５４がベース１３に固定されたサーボ制御モータ５５の出力軸に嵌着されたピニオン５６に噛合されている。連結ロッド３２により連結された搬出側移動体２９および搬入側移動体２８からなる移動体を一定量往復動させる駆動装置２２は、サーボ制御モータ５５、ラックギヤ５４、ピニオン５６等により構成されている。なお、サーボ制御モータ５５に代えてインバータモータを使用してもよい。
【００３１】
第１および第２鋳枠搬送装置１０ａ，１０ｂを並設した第２の実施形態において、搬入側台車移送装置１８又は搬出側台車移送装置２５を挟んで搬送路１２ａ，１２ｂの外側に駆動装置２２を設置するようにしてもよい。
【００３２】
上記実施形態においては、鋳枠１４を台車１５に載置してレール上を搬送しているが、複数の鋳枠１４を搬送路としてのローラコンベア上に直接載置するようにしてもよい。この場合、鋳枠搬送装置１０の搬入側係合部３７および搬出側係合部４３が、ローラコンベアの上流端位置に直列に配置された搬入位置およびローラコンベアの下流端位置に位置する各鋳枠と係合する係合位置に進退装置４４により前進される。そして、連結ロッド３２ａで連結された搬入側移動体２８および搬出側移動体２９がサーボ制御モータ３４により搬送方向に一定量移動され、係合位置に前進された搬入側係合部３７が搬入位置１７に位置する鋳枠１４を下流方向に押動し、搬入位置１７に位置する鋳枠１４が上流端位置１６に搬入されると同時に、下流端位置２３に位置する鋳枠１４が搬出位置２４に搬出され、複数の鋳枠１４が一定量ずつ順次搬送される。
【図面の簡単な説明】
【図１】第１の実施形態に係る鋳枠搬送装置を示す図。
【図２】図１のＡ‐Ａ断面図。
【図３】進退装置部分を示す部分拡大図
【図４】搬入側係合部が離脱位置に後退した状態を示す図。
【図５】複数の台車を所定量搬送した状態を示す図。
【図６】第２の実施形態を示す図。
【図７】図６のＢ−Ｂ断面図。
【図８】第３の実施形態を示す図。
【符号の説明】
１０…鋳枠搬送装置、１１…台車レール、１２…搬送路、１３…ベース、１４…鋳枠、１５…台車、１６…上流端位置、１７…搬入位置、１８…搬入側台車移送装置、１９，２６，２７…レール、２０…一対のレール、２１，５７…トラバーサ、２２…駆動装置、２３…下流端位置、２４…搬出位置、２５…搬出側台車移送装置、２８…搬入側移動体、２９…搬出側移動体、３２…連結ロッド、３４，４５…サーボ制御モータ（又はインバータモータ）、３６，４２…ベルクランク、３７…搬入側係合部（搬入側係合体）、４０…エアシリンダ装置、４１…突出部、４３…搬出側係合部（搬出側係合体）、４４…進退装置、４６…減速装置、４７…クラッチ、５１…接続ロッド、５２…ラック体。[0001]
TECHNICAL FIELD OF THE INVENTION
TECHNICAL FIELD The present invention relates to a method for transporting a plurality of flasks and a flask transport apparatus for performing the method.
[0002]
[Prior art]
Conventionally, as a device for transporting a plurality of flasks, a plurality of trolleys on which the flasks are respectively mounted are movably mounted on a flask transport rail, and at an upstream end position and a downstream end position of the flask transport rail. An electric servo-type extrusion for arranging bogie transporting devices for transporting the bogies to adjacent carry-in and carry-out positions at both ends of the molding flask carrying rail, and for pushing the bogie located at the carry-in position from the carry-in position to the upstream end position. A cylinder and an electric servo-type cushion cylinder that abuts a bogie located at the downstream end position and reduces the moving speed of the bogie on the transport rail, that is, the speed at which the bogie moves from the downstream end position to the unloading position. This is described in Utility Model Registration No. 2559334.
[0003]
[Problems to be solved by the invention]
However, in the above conventional flask transfer apparatus, an expensive electric servo cushion cylinder must be provided in order to reduce the moving speed of the plurality of bogies pushed by the electric servo extrusion cylinder during the transfer of the flask. However, there is a problem that the equipment cost increases. In addition, a long space is required because the elongated servo-driven extrusion cylinder and the cushion cylinder are installed in series outside the carry-in position and the carry-out position, so that a large space is required, which may obstruct a work passage or the like. Further, in the control of the electric servo type extrusion cylinder and the electric servo type cushion cylinder, an encoder for detecting the moving distance of the rod moved forward and backward by the inverter motor through the feed screw mechanism, and the frequency of the excitation voltage applied to the inverter motor And a control device for controlling the encoder and the inverter in association with each other is required for each cylinder, and there is a problem that the cost of equipment increases, and time and labor are required for control and adjustment.
[0004]
SUMMARY OF THE INVENTION The present invention has been made to solve such a conventional problem, and has a simple and inexpensive configuration for transferring a flask which does not take up a space for reliably transporting a plurality of flasks placed on a transport path. It is to provide a method and an apparatus.
[0005]
[Means for Solving the Problems]
In order to solve the above problems, a structural feature of the invention according to claim 1 is that a plurality of flasks are continuously arranged along a transport path, and are arranged in series at an upstream end position of the transport path. At the same time that the casting flask located at the carry-in position is carried into the upstream end position of the transport path, and the cast flask located at the downstream end position of the transport path is carried out to the carry-out position arranged in series with the downstream end position. In a casting frame transporting method for sequentially transporting a casting flask by a fixed amount at a time, a carry-in side engaging body and a carry-out side engaging body are mounted on a moving body which is reciprocated by a certain amount, and the carry-in side engaging body is located at the carry-in position. Engaged with the flask to push the flask in the downstream direction, and the unloading-side engaging body was engaged with the flask to regulate downstream movement of the flask located at the downstream end position. In this state, the moving body is advanced by a fixed amount, and the carry-in position, the downstream end position, and the both positions are set. After moving a plurality of flasks located at a predetermined amount, and removing the carry-in side engaging body and the carry-out side engaging body from the flask moved to the upstream end position and the carry-out position, the moving body is retracted by a certain amount. It is.
[0006]
The structural feature of the invention according to claim 2 is that a plurality of flasks are continuously arranged along a transport path, and a flask located at a carry-in position arranged in series at an upstream end position of the transport path. At the same time as being carried into the upstream end position of the transport path, the flask located at the downstream end position of the transport path is carried out to a carry-out position arranged in series with the downstream end position, and the flask is sequentially transported by a fixed amount. In the casting frame transfer device, a moving body mounted movably in the direction of the transfer path and reciprocated by a predetermined amount by a driving device, and a loading side engaging body and a discharging side engaging body mounted so as to be able to advance and retreat to the moving body. The carry-in side engaging body engages with the flask to push the flask located at the carry-in position in the downstream direction, and the carry-out side engaging body is located at the downstream end position. An engagement position for engaging with the flask to regulate downstream movement; and the upstream end position. And wherein between a disengaged position disengaged from the unloading position located cope flask, it is that provided the advancing and retracting device for advancing and retracting the carry-engaging body and the carry-out side engaging member.
[0007]
A structural feature of the invention according to claim 3 is that at least two rows of the casting flask conveying device according to claim 2 are arranged in parallel, and a drive motor of a driving device that reciprocates the moving body by a fixed amount is shared. The moving body of the two rows of the casting frame transfer device is reciprocated by one drive motor.
[0008]
A structural feature of the invention according to claim 4 is that, in claim 2 or 3, the drive motor of the drive device is a servo control motor or an inverter control motor.
[0009]
A structural feature of the invention according to claim 5 is that, in any one of claims 2 to 4, the driving device is disposed outside the transport path with the carry-in position or the carry-out position interposed therebetween.
[0010]
[Action and Effect of the Invention]
In the invention according to claim 1 configured as described above, the carry-in side engaging body and the moving body that reciprocate by a certain amount to convey the casting flasks arranged continuously along the conveying path by a certain amount are provided. The carry-out side engaging body is mounted so as to be able to advance and retreat. A carry-side engaging body is engaged with the flask to push the flask located at the carry-in position in the downstream direction, and a discharge-side engaging body is provided to regulate the downstream movement of the flask located at the downstream end position. Is engaged with the flask. In this state, the moving body is advanced by a fixed amount to convey a certain amount of the casting flasks located at the carry-in position, the downstream end position, and between the two positions. After the carry-in side engaging body and the carry-out side engaging body are detached from the molding flask moved to the upstream end position and the carry-out position, the moving body is retracted by a certain amount. This makes it possible to reliably transport a plurality of flasks by a fixed amount along the transport path in a simple and inexpensive manner without taking up space, without providing an expensive electric servo cushion cylinder.
[0011]
In the invention according to claim 2 configured as described above, in order to transport the casting flasks arranged continuously along the transport path by a fixed amount, the carry-side engaging body and the moving body that reciprocate by a fixed amount and The carry-out side engaging body is mounted so as to be able to advance and retreat. The carry-in side engaging body engages with the flask to push the flask located at the carry-in position in the downstream direction, and the carry-out side engaging body regulates the downstream movement of the flask located at the downstream end position. In order to move the moving body forward by a certain amount by the driving device in a state in which the carry-in side engaging body and the carry-out side engaging body are advanced by the advance / retreat device to the engagement position engaging with the flask, the carry-in position, the downstream end A certain amount of the casting flask located at the position and between the two positions is transported. After the conveyance, the carry-in side engaging body and the carry-out side engaging body are retracted to a separation position where they are detached from the casting frame located at the upstream end position and the carry-out position, and then the moving body is retracted by a certain amount. Thereby, without providing an expensive electric servo-type cushion cylinder, the carry-in side engaging body and the carry-out side engaging body are disengaged from the casting flasks at both ends of a plurality of casting flasks connected to each other, and the moving body is reciprocated by one driving device. With a configuration that is inexpensive and easy to adjust without taking up space for moving, a plurality of flasks can be reliably transported by a fixed amount along the transport path.
[0012]
In the invention according to claim 3 configured as described above, at least two rows of the flask transport device according to claim 2 are arranged in parallel. Since each moving body of the two-row flask transfer device is reciprocated by a fixed amount by one drive motor, a plurality of flasks can be used in each flask transfer device by a configuration that does not take up space in which equipment cost is greatly reduced. It is possible to surely convey a fixed amount along the conveying path.
[0013]
In the invention according to claim 4 configured as described above, the moving body is reciprocated by a fixed amount by the servo control motor or the inverter control motor, so that the structure is simple, inexpensive, easy to adjust, and a plurality of molding flasks. Can be easily controlled.
[0014]
In the invention according to claim 5 configured as described above, since the driving device is installed outside the transport path with the carry-in position or the carry-out position interposed therebetween, a plurality of flask transport devices are installed in parallel at a narrow interval. Inspection, adjustment, etc. of the drive unit, which are difficult in such a case, become easy. In addition, when the casting flask is poured into the mold formed in the casting flask while being transported along the transport path, it is possible to prevent the molten metal from being applied to the driving device and burnt out.
[0015]
Embodiment
DETAILED DESCRIPTION OF THE INVENTION Hereinafter, a method for transporting a flask according to a first embodiment of the present invention and an apparatus for transporting a flask for carrying out the method will be described with reference to the drawings. As shown in FIGS. 1 and 2, in the flask transport device 10, a plurality of truck rails 11 are laid in an elevated shape on a base 13 as a transport path 12, and a flask 14 is placed on the truck rail 11. Is transported by a fixed amount in the transport direction. A rail 19, which is a part of a carriage transfer device 18, passes through the carry-in position 17 in order to transfer the carriage 15 on which the casting flask 14 is placed to the carry-in position 17 arranged in series with the upstream end position 16 of the transport path 12. And is laid in a direction perpendicular to the transport path 12. A traverser 21 provided on a top surface with a pair of rails 20 parallel to the bogie rail 11 rolls on the rail 19 and transfers the bogie on which the flask 15 is placed at a carry-in position 17 aligned with the upstream end position 16. I do. When the traverser 21 is located at the carry-in position 17, the rail 20 is aligned with the bogie rail 11, and the bogie 15 mounted on the rail 20 is connected to the plurality of bogies 15 mounted on the bogie rail 11.
[0016]
In order to transfer the carriage 15 unloaded to the unloading position 24 arranged in series with the downstream end position 23 of the transfer path 12, the rail 26 of the unloading side dolly transfer device 25 passes through the unloading position 24 and is connected to the transfer path 12. It is laid at right angles. A traverser 57 having a pair of rails 27 parallel to the bogie rail 11 provided on the upper surface rolls on the rail 26 and transfers the bogie 15 carried out on the traverser 57 located at the carry-out position 24 from the carry-out position 24. . When the traverser 57 is located at the carry-out position 24, the rail 27 is aligned with the bogie rail 11, and the bogie 15 is carried out from the bogie rail 11 to the rail 27.
[0017]
Under the upstream end position 16 and the downstream end position 23 of the bogie rail 11, a carry-in side moving body 28 and a carry-out side moving body 29 are slidable in the conveying direction by guides 30, 31 fixed to the base 13. Each is supported and connected to each other by a connecting rod 32. A rack gear 33 is engraved on the lower surface of the unloading side moving body 29, and the rack gear 33 is meshed with a pinion 35 fitted on an output shaft of a servo control motor 34 fixed to the base 13. The driving device 22 for reciprocating a moving body including the unloading-side moving body 29 and the in-loading-side moving body 28 connected by the connecting rod 32 by a predetermined amount includes a servo control motor 34, a rack gear 33, a pinion 35, and the like. Note that an inverter motor may be used instead of the servo control motor 34.
[0018]
A bell crank 36 is rotatably attached to the carry-in side movable body 28 such that a carry-in side engaging portion 37 formed at one end moves forward and backward toward the lower surface of the carriage 15. The other end of the bell crank 36 is connected by a link 39 to one end of an L-shaped link 38 pivotally supported by the loading-side moving body 28, and the other end of the L-shaped link 38 is rotated by the loading-side moving body 28. It is pivotally supported by a piston rod of the air cylinder device 40 which is supported as possible. When the piston rod of the air cylinder device 40 advances, the L-shaped link 38 is rotated clockwise in FIG. 3, the bell crank 36 is rotated counterclockwise through the link 39, and the carry-in side engaging portion 37 is rotated. Moves forward to the engagement position where it engages with the rear surface of the protrusion 41 protruding from the front lower surface of the carriage 15 in order to push the carriage 15 located at the carry-in position 17 in the downstream direction. At this time, the distal end of the L-shaped link 38 and the link 39 are substantially aligned, and the bell crank 36 does not rotate clockwise due to the toggle mechanism and the carry-in side engaging portion 37 does not retreat. When the piston rod of the air cylinder device 40 is retracted, the L-shaped link 38 is rotated counterclockwise in FIG. 4, the bell crank 36 is rotated clockwise through the link 39, and the carry-in side engaging portion 37 is rotated. Retreats from the projecting portion 41 of the carriage 15 carried to the upstream end position 16 to the detached position.
[0019]
A bell crank 42 is rotatably supported on the unloading side movable body 29 in line symmetry with the bell crank 36, and an unloading side engaging portion 43 formed at one end moves forward and backward toward the lower surface of the cart 15. I have. The bell crank 42 is rotated by an air cylinder device rotatably supported by the unloading side moving body 29 by the same link mechanism as the bell crank 36. The bell crank 42 is rotated clockwise by the advance of the piston rod of the air cylinder device, and the carry-out side engaging portion 43 restricts the movement of the carriage 15 located at the downstream end position 23 in the downstream direction. Forwardly to an engagement position where it engages with the front surface of the projection 41 projecting from the rear lower surface. With the retraction of the piston rod of the air cylinder device, the bell crank 42 is rotated in the counterclockwise direction, and the discharge side engaging portion 43 is retracted to the disengagement position where it is disengaged from the protruding portion 41 of the carriage 15 unloaded to the unloading position 24. .
[0020]
The carry-in side engaging portion 37 engages with the carriage 15 on which the casting frame 14 placed at the carry-in position 17 is placed to push the carriage 15 in the downstream direction, and the carry-out side engaging portion 43 is in the downstream end position. In order to restrict the downstream movement of the carriage 15 on which the casting flask 14 located at 23 is placed, the carriage 15 is disengaged from the engagement position where the carriage 15 engages with the carriage 15 and the upstream end position 16 and the carriage 15 located at the unloading position 24. An advance / retreat device 44 for moving the carry-in side engaging portion 37 and the carry-out side engaging portion 43 forward and backward between the disengagement position includes an air cylinder device 40, bell cranks 36 and 42, a link 39, an L-shaped link 38, and the like. It is configured.
[0021]
The operation of the first embodiment configured as described above will be described. In the transport path 12, a plurality of carriages 15 on which the casting flasks 14 are respectively mounted are continuously mounted from an upstream end position 16 to a downstream end position 23. The traverser 21 of the carry-in bogie transfer device 18 is transferred on the rail 19 to the carry-in position 17, and the cart 15 on which the casting flask 14 is placed is located at the carry-in position 17. An empty traverser 57 is located at the unloading position 24 in the unloading-side cart transfer device 25. In this state, the piston rod of the air cylinder device 40 of the advance / retreat device 44 mounted on the carry-in side moving body 28 is advanced, and the bell crank 36 is rotated counterclockwise via the L-shaped link 38 and the link 39. Then, the carry-in side engaging portion 37 is advanced to the engaging position where the carry-in side engaging portion 37 engages with the rear surface of the protruding portion 41 protruding from the carriage 15 located at the carry-in position 17.
[0022]
The servo control motor 34 is started at low speed rotation, and the carry-out side moving body 29 connected to the carry-out side moving body 29 and the connecting rod 32 by the engagement of the pinion 35 and the rack gear 33 is moved leftward in FIG. The carry-in side engaging portion 37 mounted on the moving body 28 and advanced to the engaging position pushes the carriage 15 located at the carry-in position 17 in the downstream direction, and a small shock is applied to the carriage 15 located at the upstream end position 16. Abut. The fact that the unloading-side moving body 29 has moved by a distance slightly larger than the gap C between the carriage 15 located at the loading position 17 and the upstream end position 16 indicates that the rotation amount of the resolver or the like that detects the rotation amount of the servo control motor 34 is detected. When detected by the device, the piston rod of the air cylinder device of the advance / retreat device 44 attached to the unloading side moving body 29 is advanced, and the bell crank 42 is rotated clockwise through the L-shaped link and the link, The unloading-side engaging portion 43 is advanced to an engaging position where the unloading-side engaging portion 43 is engaged with the front surface of the protruding portion 41 protruding from the carriage 15 located at the downstream end position 23. In this way, the carriage 15 located at the carry-in position 17 and the upstream end position 16 abuts on each other, and the carry-out side engaging portion 43 is moved forward and positioned at the downstream end position 23 in a state where the gap C between the two carriages is eliminated. The plurality of carts 15 sandwiched between the carry-in side engaging section 37 and the carry-out side engaging section 43 are connected in a state where there is no gap. Thus, the front and rear carts 15 are smoothly transported without being separated or hit during the movement.
[0023]
Thereafter, the rotation speed of the servo control motor 34 is gradually increased to high-speed rotation, and the unloading-side moving body 29 is moved at high speed. When the rotation amount detecting device detects that the unloading-side moving body 29 has been moved by a slightly smaller amount than the fixed amount, the servo control motor 34 is decelerated at the set deceleration, and the unloading-side moving body 29 is moved at the moving speed. When the rotation amount detecting device detects that the motor has moved by a predetermined amount, the servo control motor 34 and thus the unloading side moving body 29 are stopped. At this time, the unloading-side engaging portion 43 mounted on the unloading-side moving body 29 and advanced to the engagement position engages with the carriage 15 unloaded to the unloading position 24, thereby reducing the moving speed of the subsequent carriage 15. And stop it. In this manner, as shown in FIG. 5, the carriage 15 on which the casting flask 14 located at the carry-in position 17 arranged in series with the upstream end position 16 of the transport path 12 is moved to the upstream end position 16 of the transport path 12. At the same time, the trolley 15 located at the downstream end position 23 of the transport path 12 is unloaded to the unloading position 24 arranged in series with the downstream end position 23, and the plurality of trolleys 15 are sequentially transported by a fixed amount. You. When the speed of the unloading-side moving body 29 increases, the loading-side moving body 28 is pulled through the connecting rod 32, and the loading-side engaging portion 37 advanced to the engaging position moves the carriage 15 at the loading position 17. Is pressed in the downstream direction, so that the long connecting rod 32 is not subjected to buckling due to a tensile force. When the moving speed of the unloading side moving body 29 is reduced, the unloading side engaging portion 43 advanced to the engaging position engages with the carriage 15 unloaded to the unloading position 24, and the moving speed of the succeeding carriage 15 is reduced. Since the connection rod 32 is reduced, only the pulling force of the loading side moving body 28 acts on the connecting rod 32.
[0024]
When the plurality of carts 15 are transported by a fixed amount, the piston rods of the air cylinder device of the advance / retreat device 44 are retracted, and the bell cranks 36 and 42 are rotated via the L-shaped links and the links, so that the carry-in side engagement is performed. The part 37 and the carry-out side engaging part 43 are retracted and separated from the carriage 15 moved to the upstream end position 16 and the carry-out position 24. Thereafter, the servo control motor 34 is rotated in the reverse direction, and the carry-out side moving body 29 and the carry-in side moving body 28 connected by the connecting rod 32 by the rack and pinion mechanism are retracted rightward by a certain amount in FIG.
[0025]
Next, a second embodiment will be described with reference to FIGS. In the second embodiment, at least two rows of the casting frame transfer devices 10 according to the first embodiment are arranged in parallel, and the drive motor of the drive device 22 that reciprocates each unloading side moving body 29 by a fixed amount is shared. Each of the unloading-side moving bodies 29 of the two rows of the casting frame transfer device 10 is reciprocated by a single drive motor. Since each casting frame transport device 10 is the same as that of the first embodiment, a detailed description is omitted, and a mechanism that reciprocates each unloading side moving body 29 by a certain amount by one drive motor will be described. The first and second flask transport devices 10a and 10b are arranged in parallel, and the carriage 15 on which the flask 14 is mounted is connected in series to the upstream end positions 16a and 16b of the transport paths 12a and 12b of the flask transport devices 10a and 10b. The rails 19 of the carry-in side bogie transfer device 18 for transferring to the carry-in positions 17a, 17b arranged at a position passing through the carry-in positions 17a, 17b are laid in a direction perpendicular to the transport paths 12a, 12b. A traverser 21 provided with a pair of rails 20 parallel to the bogie rails 11a and 11b of the first and second flask transfer devices 10a and 10b rolls on the rails 19 and casts at the loading positions 17a and 17b. The carriage 15 on which the frame 15 is placed is selectively transferred.
[0026]
The rails 26 of the unloading bogie transfer device 25 are used to transfer the bogies 15 unloaded to the unloading positions 24a, 24b arranged in series with the downstream end positions 23a, 23b of the transport paths 12a, 12b. And is laid in a direction perpendicular to the transport paths 12a and 12b. A traverser 57 having a pair of rails 27 parallel to the bogie rails 11a and 11b provided on the upper surface rolls on the rails 26 and is selectively stopped at the unloading positions 24a and 24b. The traverser 57 transfers the carriage 15 carried out on the rail 27 at the carry-out positions 24a and 24b to the next step.
[0027]
Reference numeral 45 denotes a servo control motor 45 as a drive motor fixed to the base 13 between the transport paths 12a and 12b. The servo control motor 45 is connected to a reduction gear 46, and output shafts 46a and 46b provided on both sides of the reduction gear 46 have clutches 47a and 46b. It is connected to transmission shafts 48a and 48b via 47b. The transmission shafts 48a, 48b are rotatably supported by bearing members 49a, 49b fixed to the base 13, and the pinions 50a, 50b fitted to the respective tip portions are engraved on the unloading-side moving bodies 29a, 29b. 33a, 33b. The driving device 22 for reciprocating the moving body composed of the carrying-out moving bodies 29a and 29b and the carrying-in moving body connected by the connecting rod by a predetermined amount includes a servo control motor 45, a reduction gear 46, transmission shafts 48a and 48b, and a rack gear 33a. , 33b, pinions 50a, 50b, clutches 47a, 47b, and the like. Note that an inverter motor may be used instead of the servo control motor 45.
[0028]
Assuming that the traverser 21 on which the carriage 15 is mounted and the empty traverser 57 are located at, for example, the carry-in position 17a and the carry-out position 24a of the first flask transport device 10a, the carry-in side engaging portion of the flask transport device 10a. The carry-out side engaging portion is moved forward by the advance / retreat device to an engaging position where it engages with each carriage 15 located at the carry-in position 17a and the downstream end position 23a. The transmission shaft 48a connected to the unloading-side moving body 29a of the flask transport device 10a is connected to the servo control motor 45 by connecting the clutch 47a, and the other clutch 47b is disconnected. The carry-in side moving body connected to the carry-out side moving body 29a and the connecting rod 32a by the servo control motor 45 is moved to the left in FIG. 6, and the carry-side engaging portion advanced to the engaging position is moved to the carry-in position 17a. The trolley 15 is pushed in the downstream direction and transported. The carriage 15 located at the carry-in position 17a is carried into the upstream end position 16a, and at the same time, the carriage 15 located at the downstream end position 23a is carried out to the carry-out position 24a, and the plurality of carriages 15 are sequentially conveyed by a fixed amount. .
[0029]
When the traverser 21 on which the carriage 15 is mounted and the empty traverser 57 are located at the carry-in position 17b and the carry-out position 24b of the second flask transport device 10b, the carry-in side engaging portion of the flask transport device 10b and The unloading-side engaging portion is advanced by an advance / retreat device to an engaging position where the unloading-side engaging portion engages with the carriages 15 located at the loading position 17b and the downstream end position 23b, and the transmission shaft 48b connected to the unloading-side moving body 29b is engaged with the clutch 47b. As described above, the carriage 15 located at the carry-in position 17b is carried into the upstream end position 16b, and at the same time, the carriage 15 located at the downstream end position 23b is carried out to the carry-out position 24b. Is done.
[0030]
Next, a third embodiment will be described with reference to FIG. In the third embodiment, the drive unit 22 of the flask transfer device 10 is installed outside the transfer path 12 with the carry-in position 17 or the carry-out position 24 interposed therebetween. Since the casting flask transport device 10 is the same as that of the first embodiment, detailed description is omitted, and only the point that the drive device 22 is installed outside the transport path 12 will be described. In the third embodiment, the unloading side moving body 29 is connected to the rack body 52 by the connecting rod 51 without the rack gear 33 being engraved on the lower surface. The rack body 52 is slidably mounted on a guide 53 outside the transport path 12 across the carry-in position 17 or the carry-out position 24 on an extension of the transport path 12. A rack gear 54 is engraved on the lower surface of the rack body 52, and the rack gear 54 is meshed with a pinion 56 fitted on an output shaft of a servo control motor 55 fixed to the base 13. The driving device 22 for reciprocating a moving body composed of the unloading-side moving body 29 and the in-loading-side moving body 28 connected by the connecting rod 32 by a predetermined amount includes a servo control motor 55, a rack gear 54, a pinion 56, and the like. Note that an inverter motor may be used instead of the servo control motor 55.
[0031]
In the second embodiment in which the first and second flask transfer devices 10a and 10b are arranged side by side, the drive device 22 is provided outside the transfer paths 12a and 12b with the carry-in carriage transfer device 18 or the carry-out carriage transfer device 25 interposed therebetween. May be installed.
[0032]
In the above embodiment, the casting flask 14 is placed on the carriage 15 and transported on the rail. However, a plurality of casting flasks 14 may be placed directly on a roller conveyor as a transport path. In this case, the carry-in side engaging portion 37 and the carry-out side engaging portion 43 of the casting frame transport device 10 are provided at the carry-in position and the downstream end position of the roller conveyor which are arranged in series at the upstream end position of the roller conveyor. It is advanced by the advance / retreat device 44 to the engagement position where it engages with the frame. Then, the carry-in side moving body 28 and the carry-out side moving body 29 connected by the connecting rod 32a are moved by a certain amount in the carrying direction by the servo control motor 34, and the carry-in side engaging portion 37 advanced to the engaging position is moved to the carry-in position. 17, the casting flask 14 located at the carry-in position 17 is loaded into the upstream end position 16 and at the same time the flask 14 located at the downstream end position 23 is moved out of the delivery position 24. And the plurality of flasks 14 are sequentially conveyed by a fixed amount.
[Brief description of the drawings]
FIG. 1 is a view showing a flask transfer device according to a first embodiment.
FIG. 2 is a sectional view taken along line AA of FIG.
FIG. 3 is a partially enlarged view showing an advance / retreat device part.
FIG. 4 is a view showing a state in which a carry-in side engaging portion is retracted to a detached position.
FIG. 5 is a diagram showing a state in which a plurality of carts are transported by a predetermined amount.
FIG. 6 is a diagram showing a second embodiment.
FIG. 7 is a sectional view taken along line BB of FIG. 6;
FIG. 8 is a diagram showing a third embodiment.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 ... Cast frame transfer device, 11 ... Bogie rail, 12 ... Convey path, 13 ... Base, 14 ... Cast frame, 15 ... Bogie, 16 ... Upstream end position, 17 ... Loading position, 18 ... Loading side bogie transfer device, 19 , 26, 27 ... rail, 20 ... a pair of rails, 21, 57 ... traverser, 22 ... drive unit, 23 ... downstream end position, 24 ... unloading position, 25 ... unloading side bogie transfer device, 28 ... unloading side moving body, 29: carry-out side moving body, 32: connecting rod, 34, 45 ... servo control motor (or inverter motor), 36, 42 ... bell crank, 37 ... carry-in side engaging part (carry-in side engaging body), 40 ... air cylinder Apparatus, 41: Projecting part, 43: Unloading side engaging part (unloading side engaging body), 44: Retracting device, 46: Reduction gear, 47: Clutch, 51: Connection rod, 52: Rack body.

Claims

A plurality of flasks are continuously arranged along the transport path, and simultaneously with loading the flask located at the carry-in position arranged in series at the upstream end position of the transport path to the upstream end position of the transport path, In a flask conveying method for discharging a flask located at a downstream end position of a transport path to an unloading position arranged in series with the downstream end position and sequentially transporting the flask by a fixed amount, a movement reciprocated by a fixed amount. The body is provided with a carry-in side engaging body and a carry-out side engaging body, and the carry-in side engaging body engages with the flask to push a flask located at the carry-in position in a downstream direction, and carries out the unloading. In a state in which the side engaging body is engaged with the flask in order to regulate the downstream movement of the flask located at the downstream end position, the moving body is advanced by a fixed amount, and the carry-in position, the downstream end position and the both sides are moved forward. A plurality of flasks located between the positions are conveyed by a fixed amount, and the carry-in side engaging body and the carry-out side After allowed to leave the body from the moved cope flask to the upstream end position and the unloading position, flasks transfer method which comprises causing a predetermined amount retracting the movable body.

A plurality of flasks are continuously arranged along the transport path, and at the same time that the flask located at the loading position arranged in series at the upstream end position of the transport path is loaded into the upstream end position of the transport path, In a casting frame transporting device that unloads a flask located at a downstream end position of a transport path to an unloading position arranged in series with the downstream end position and sequentially transports the flask by a fixed amount, the flask can be moved in the transport path direction. A moving body reciprocated by a driving device mounted on the moving body, a carry-in side engaging body and a carry-out side engaging body mounted on the moving body so as to be able to advance and retreat, and the carry-in side engaging body is located at the carry-in position. And the unloading-side engaging body engages with the flask to regulate the downstream movement of the flask located at the downstream end position. The engagement position and the casting frame located at the upstream end position and the unloading position Between a disengaged position disengaged, flasks conveying apparatus characterized by comprising a reciprocating device for advancing and retracting the carry-engaging body and the carry-out side engaging member.

3. The method according to claim 2, wherein the at least two rows of the flasks are arranged in parallel in at least two rows, and the two rows of the flasks are conveyed by one drive motor sharing a drive motor of a drive unit for reciprocating the moving body by a predetermined amount. A casting frame transfer device wherein a moving body of the device is reciprocated.

4. The apparatus according to claim 2, wherein the drive motor of the drive device is a servo control motor or an inverter control motor.

5. The apparatus according to claim 2, wherein the driving device is installed outside the transport path with the carry-in position or the carry-out position interposed therebetween. 6.