JP4446089B2 - Work transfer system - Google Patents

Work transfer system Download PDF

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JP4446089B2
JP4446089B2 JP2004195583A JP2004195583A JP4446089B2 JP 4446089 B2 JP4446089 B2 JP 4446089B2 JP 2004195583 A JP2004195583 A JP 2004195583A JP 2004195583 A JP2004195583 A JP 2004195583A JP 4446089 B2 JP4446089 B2 JP 4446089B2
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Prior art keywords
workpiece
work
feeder
shaped groove
hole
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JP2006016147A (en
Inventor
島 智 幸 小
沢 誠 二 吉
野 顕 治 水
平 晃 久 小
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株式会社 東京ウエルズ
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Priority to JP2004195583A priority Critical patent/JP4446089B2/en
Priority to TW094118767A priority patent/TWI278257B/en
Priority to KR1020050052929A priority patent/KR100682813B1/en
Priority to CNB2005100822045A priority patent/CN100404398C/en
Publication of JP2006016147A publication Critical patent/JP2006016147A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q7/00Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting
    • B23Q7/02Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting by means of drums or rotating tables or discs
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23PMETAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P19/00Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
    • B23P19/001Article feeders for assembling machines
    • B23P19/004Feeding the articles from hoppers to machines or dispensers
    • B23P19/005Feeding the articles from hoppers to machines or dispensers by using flowing gases
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q17/00Arrangements for observing, indicating or measuring on machine tools
    • B23Q17/24Arrangements for observing, indicating or measuring on machine tools using optics or electromagnetic waves
    • B23Q17/2433Detection of presence or absence
    • B23Q17/2447Detection of presence or absence of a workpiece
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q7/00Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting
    • B23Q7/08Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting by means of slides or chutes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q7/00Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting
    • B23Q7/12Sorting arrangements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G47/00Article or material-handling devices associated with conveyors; Methods employing such devices
    • B65G47/02Devices for feeding articles or materials to conveyors
    • B65G47/04Devices for feeding articles or materials to conveyors for feeding articles
    • B65G47/12Devices for feeding articles or materials to conveyors for feeding articles from disorderly-arranged article piles or from loose assemblages of articles
    • B65G47/14Devices for feeding articles or materials to conveyors for feeding articles from disorderly-arranged article piles or from loose assemblages of articles arranging or orientating the articles by mechanical or pneumatic means during feeding
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q2707/00Automatic supply or removal of metal workpieces
    • B23Q2707/04Automatic supply or removal of metal workpieces by means of grippers also magnetic or pneumatic gripping

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Feeding Of Articles To Conveyors (AREA)
  • Automatic Assembly (AREA)
  • Specific Conveyance Elements (AREA)
  • Branching, Merging, And Special Transfer Between Conveyors (AREA)

Description

本発明は搬送テーブルのワーク収納部にワークを1個ごと装填して搬送するワーク搬送システムに係り、とりわけ互いに当接して搬送されてきたワークを1個ごと分離して搬送テーブルのワーク収納部に供給するワーク搬送システムに関する。   The present invention relates to a workpiece transfer system that loads and transfers workpieces one by one in a workpiece storage section of a transfer table, and in particular, separates the workpieces that have been transferred in contact with each other into the workpiece storage portion of the transfer table. The present invention relates to a workpiece transfer system to be supplied.

従来より、図9に示すようなワーク搬送システムが知られている(特許文献1参照)。図9において、ワーク搬送システムはワークフィーダ28と、分離機構29とを有している。このうちワークフィーダ28はワークw10の搬送路を形成する支持台28aと、搬送路を覆うワークw10の飛散防止の為のカバー28bとからなり、ワークw10を連接して整列搬送するようになっている。 Conventionally, a workpiece conveyance system as shown in FIG. 9 is known (see Patent Document 1). In FIG. 9, the workpiece transfer system has a workpiece feeder 28 and a separation mechanism 29. A support base 28a which forms a conveying path for these work feeder 28 work w 10, consists of a cover 28b for scattering prevention of the workpiece w 10 covering the conveying path, to align conveyed by concatenating the workpiece w 10 It has become.

ワークフィーダ28の下流端に連設された分離機構29は、ワークフィーダ28の搬送路と面一の連通路29aを有するベース22と、連通路29aを覆うカバー24とかなっている。連通路29aの下流端近傍に、整列搬送されるワークw10の先頭ワークw11をブロックして進行を規制するワークストッパ25のセパレーションピン25aが設けられ、このセパレーションピン25aはベース22を貫通して連通路29a上に出没自在に設けられている。 The separation mechanism 29 connected to the downstream end of the work feeder 28 includes a base 22 having a communication path 29a that is flush with the conveyance path of the work feeder 28, and a cover 24 that covers the communication path 29a. In the vicinity of the downstream end of the communication passage 29a, the separation pin 25a of the workpiece stopper 25 is provided to regulate the progress by blocking the first workpiece w 11 of the workpiece w 10 to be aligned conveyed, the separation pin 25a penetrates the base 22 It is provided on the communication passage 29a so that it can freely appear and disappear.

ベース22上には、周縁部に複数のワーク収納溝23aを有するターンテーブル23が間欠回転可能に設けられており、ターンテーブル23が停止したときワーク収納溝23aと連通路29aの下流端が対向するようになっている。   On the base 22, a turntable 23 having a plurality of work storage grooves 23a at its peripheral edge is provided so as to be intermittently rotatable. When the turntable 23 stops, the work storage grooves 23a and the downstream end of the communication passage 29a face each other. It is supposed to be.

連通路29aの下流端と対向するワーク収納溝23a下部には、ワーク収納溝23aと連通する吸引口26がベース22を貫通して設けられ、セパレーションピン25aの下降に伴い連通路29a上の先頭ワークw11が吸引孔26に吸引されてワーク収納溝23a内に装填されるようになっている。またベース22を貫通して投光器27aが設けられ、カバー24を貫通して受光器27bが設けられ、これら投光器27aと受光器27bとにより、ワーク収納溝23a内に装填されたワークw11の状態を検知するようになっている。 A suction port 26 communicating with the work storage groove 23a is provided through the base 22 at the lower part of the work storage groove 23a facing the downstream end of the communication path 29a. When the separation pin 25a is lowered, the leading end on the communication path 29a is provided. work w 11 becomes being attracted to the suction hole 26 to be loaded into the workpiece storage groove 23a. The projector 27a is provided through the base 22, the light receiver 27b is provided through the cover 24, by these light projector 27a and a light receiver 27b, the state of the workpiece w 11 loaded in the workpiece storage groove 23a Is to be detected.

受光器27bにより先頭ワークw11がワーク収納溝23a内に装填されたことが検知され、制御装置31に入力されると、制御装置31からセパレーションピン25aの上昇指令が駆動機構25bに出力され、連通路29a上に突出したセパレーションピン25aにより後続ワークw12がブロックされて先頭ワークw11と分離される。同時に、図示しないターンテーブル23の駆動手段により1ステップ分ターンテーブル23が間欠的に送られるようになっている。
特開2002−145445
Top workpiece w 11 by the photo detector 27b is detected to have been loaded in the workpiece storage groove 23a, is input to the controller 31, increases a command separation pin 25a is outputted to the drive mechanism 25b from the controller 31, subsequent work w 12 is separated from the top workpiece w 11 is blocked by the separation pin 25a projecting on the communication passage 29a. At the same time, the turntable 23 is intermittently sent by one step by the driving means of the turntable 23 (not shown).
JP 2002-145445 A

このようなワーク搬送システムにおいては、部品が微細になるにつれセパレーションピン25aも極めて細くなって折れ易くなったり、また、セパレーションピン25aや駆動機構25bの組み込みが困難になったり、更には、セパレーションピン25aの出没動作など連続的な装置の稼動に限界をもたらし、その結果として高速化に限界をもたらす一因となっている。   In such a workpiece transfer system, as the parts become finer, the separation pin 25a becomes extremely thin and easily broken, and it becomes difficult to incorporate the separation pin 25a and the drive mechanism 25b. This causes a limit to the continuous operation of the device such as the 25a infestation operation, and as a result, this is a factor in limiting the speeding up.

また、搬送路28aや連通路29aにカバー28b、24を設けることが一般的であったため、ワーク詰りが発生し易い。ワーク詰りが発生すると、回復に手間取ったり、あるいは所謂リカバリ装置と呼ばれる復旧のための機構を設け、詰まったワークw10を除去しなければならないため、製品コストが高くなるという問題がある。 Moreover, since it is common to provide the covers 28b and 24 in the conveyance path 28a and the communication path 29a, the workpiece is easily clogged. When the workpiece jam occurs, or lingering recovery, or a mechanism for recovering the so-called recovery apparatus, since it is necessary to remove the jammed workpiece w 10, there is a problem that manufacturing cost becomes high.

本発明はこのような点を考慮してなされたものであり、ワーク詰りが生じることなく、ワークを一つずつ確実に搬送テーブルのワーク収納部に装填して搬送することができるワーク搬送システムを提供することを目的とする。   The present invention has been made in consideration of such points, and a work transfer system that can securely load and transfer works one by one in a work storage section of a transfer table without causing work clogging. The purpose is to provide.

本発明は、略垂直に配置されたテーブルベースと、テーブルベース上に回転自在に配置され、外周に複数のワーク収納部を有する搬送テーブルと、搬送テーブルに対して直交して配置され、ワーク収納部にワークを互いに当接させかつ連続して供給するリニアフィーダと、リニアフィーダと搬送テーブルとの間に設けられ、リニアフィーダから供給されるワークを一つずつ分離する分離シュートとを備えたことを特徴とするワーク搬送システムである。   The present invention relates to a table base that is arranged substantially vertically, a transfer table that is rotatably arranged on the table base, and has a plurality of work storage units on the outer periphery, and is arranged perpendicular to the transfer table to store the work. A linear feeder that supplies workpieces to each other and continuously feeds them, and a separation chute that is provided between the linear feeder and the conveyance table and separates workpieces supplied from the linear feeder one by one. Is a workpiece transfer system characterized by

本発明は、リニアフィーダは供給フィーダと、供給フィーダに平行して設けられ、供給フィーダより下方に配置された戻しフィーダとを有し、供給フィーダは第1V形溝を有し、第1V形溝は戻しフィーダ側へ傾斜する傾斜面に対応する長辺と、戻しフィーダ側に位置する短辺とからなり、ワークの安定底面が第1V形溝の長辺にきたときワークが正常な搬送位置をとり、ワークの安定底面が第1V形溝の短辺にきたときワークの重心が短辺の稜部より外側になりワークが戻しフィーダ側へ落下することを特徴とするワーク搬送システムである。   In the present invention, the linear feeder includes a supply feeder and a return feeder provided in parallel with the supply feeder and disposed below the supply feeder. The supply feeder has a first V-shaped groove, and the first V-shaped groove. Consists of a long side corresponding to the inclined surface inclined to the return feeder side and a short side located on the return feeder side. When the stable bottom surface of the workpiece comes to the long side of the first V-shaped groove, the workpiece is positioned in a normal conveying position. The workpiece conveying system is characterized in that when the stable bottom surface of the workpiece comes to the short side of the first V-shaped groove, the center of gravity of the workpiece is outside the ridge portion of the short side and the workpiece falls back to the feeder side.

本発明は、供給フィーダの第1V形溝の長辺は、水平面に対して35°以上傾斜することを特徴とするワーク搬送システムである。   The present invention is the workpiece transfer system characterized in that the long side of the first V-shaped groove of the supply feeder is inclined by 35 ° or more with respect to the horizontal plane.

本発明は、分離シュートは、供給フィーダの第1V形溝に対応して形成され、長辺と短辺を有する第2V形溝を有することを特徴とするワーク搬送システムである。   The present invention is the workpiece conveyance system, wherein the separation chute is formed corresponding to the first V-shaped groove of the supply feeder and has a second V-shaped groove having a long side and a short side.

本発明は、分離シュートの第2V形溝には、リニアフィーダから供給されるワークを一時的に吸引する吸引孔と、吸引孔の下流側に位置し不良ワークにエアを噴射して排除する噴射孔とが設けられていることを特徴とするワーク搬送システムである。   In the second V-shaped groove of the separation chute, the suction hole for temporarily sucking the workpiece supplied from the linear feeder, and the injection for ejecting air to the defective workpiece located on the downstream side of the suction hole are eliminated. It is a workpiece conveyance system provided with a hole.

本発明は、搬送テーブルのワーク収納部の底面は、分離シュートの第2V形溝の長辺に対応していることを特徴とするワーク搬送システムである。   The present invention is the workpiece conveyance system, wherein the bottom surface of the workpiece storage portion of the conveyance table corresponds to the long side of the second V-shaped groove of the separation chute.

本発明は、テーブルベースの分離シュートの第2V形溝に対応する部分に、分離シュート上のワークを搬送テーブルのワーク収納部に吸引するワーク装填孔を設けたことを特徴とするワーク搬送システムである。   The present invention is a work transfer system characterized in that a work loading hole for sucking a work on the separation chute into a work storage part of the transfer table is provided in a portion corresponding to the second V-shaped groove of the separation chute of the table base. is there.

本発明は、分離シュートのうち、供給フィーダからワーク収納部の1ピッチ以上下流側にワーク検知センサを設けたことを特徴とするワーク搬送システムである。   The present invention is a workpiece transfer system characterized in that a workpiece detection sensor is provided on the downstream side of a separation chute from the supply feeder by one pitch or more from the supply feeder.

本発明は、テーブルベースのうちワーク検知センサに対応する部分にワーク排出孔を設けたことを特徴とするワーク搬送システムである。   The present invention is a workpiece transfer system characterized in that a workpiece discharge hole is provided in a portion of the table base corresponding to the workpiece detection sensor.

本発明は、供給フィーダの第1V形溝の長辺は分離シュートの第2V形溝の長辺と同一平面上にあり、第1V形溝の短辺は第2V形溝の短辺と同一平面上にあることを特徴とするワーク搬送システムである。   In the present invention, the long side of the first V-shaped groove of the supply feeder is flush with the long side of the second V-shaped groove of the separation chute, and the short side of the first V-shaped groove is flush with the short side of the second V-shaped groove. It is the workpiece conveyance system characterized by being on.

本発明は、噴射孔からのエア噴射は、搬送テーブルの回転開始直前に開始され、搬送テーブルの停止直後に停止するよう制御部により制御されることを特徴とするワーク搬送システムである。   The present invention is a workpiece transfer system in which air injection from the injection hole is started immediately before the rotation of the transfer table is started, and is controlled by the control unit to stop immediately after the transfer table is stopped.

以上説明したように、本発明によれば、従来のようなセパレーションピンを設けることなく、吸引力とタイミングを利用してワークの分離供給を行うようにしたので、セパレーションピンに関する折れや組み込み等の問題をなくすことができ、更に連続的な装置の稼動が実現でき、かつ高速化が実現できる。さらに、カバーを設ける必要がないので、ワークの詰りが発生せず、したがって、リカバリ機構などを必要としないため、シンプルで安定したワークの分離供給が可能となり、製品コストを下げることが可能となる。   As described above, according to the present invention, the separation and supply of the workpiece is performed using the suction force and the timing without providing the separation pin as in the prior art. Problems can be eliminated, continuous operation of the apparatus can be realized, and high speed can be realized. Furthermore, since there is no need to provide a cover, clogging of the workpiece does not occur, and therefore a recovery mechanism or the like is not required, so that simple and stable separation and supply of the workpiece is possible, and the product cost can be reduced. .

以下、図面を参照して本発明の実施の形態について説明する。   Embodiments of the present invention will be described below with reference to the drawings.

図1は本発明によるワーク搬送システムの一実施の形態を示す平面図、図2はワーク搬送システムを示す正面図、図3(a)は正常搬送状態のリニアフィーダの断面拡大図、図3(b)は異常搬送状態のリニアフィーダの断面拡大図、また図4(a)−(c)は供給フィーダの説明図、図5は分離シュートを示す正面図、図6はワーク装填孔を示す側面図、図7はワーク排出孔を示す側面図である。   1 is a plan view showing an embodiment of a work transfer system according to the present invention, FIG. 2 is a front view showing the work transfer system, FIG. 3A is an enlarged cross-sectional view of a linear feeder in a normal transfer state, and FIG. b) is an enlarged cross-sectional view of the linear feeder in an abnormally transported state, FIGS. 4A to 4C are explanatory views of the supply feeder, FIG. 5 is a front view showing a separation chute, and FIG. 6 is a side view showing a work loading hole. FIG. 7 is a side view showing the work discharge hole.

図1および図2において、ワーク搬送システム1は、垂直に設けられたテーブルベース2と、テーブルベース2の垂直面2a上に配置され水平な回転軸3aの周りを間欠回転自在に設けられるとともに、外周に複数のコ字状のワーク収納溝(ワーク収納部)4を有するワーク搬送手段の搬送テーブル3と、搬送テーブル3に対して直交して配置され、ワークwを互いに当接させかつ連続してワーク収納溝4内に供給するワーク供給手段であるリニアフィーダ6と、リニアフィーダ6と搬送テーブル3との間に設けられ、リニアフィーダ6から供給されるワークwを一つずつ分離する分離シュート7とを備えている。   1 and 2, a workpiece transfer system 1 is provided on a vertical table base 2 and a vertical surface 2 a of the table base 2 so as to be intermittently rotatable around a horizontal rotation shaft 3 a. A workpiece transfer means 3 having a plurality of U-shaped workpiece storage grooves (work storage portions) 4 on the outer periphery and a workpiece table 3 are arranged orthogonal to the carrier table 3 so that the workpieces w are in contact with each other and are continuous. The linear feeder 6 serving as a workpiece supply means for supplying the workpiece into the workpiece storage groove 4, and a separation chute provided between the linear feeder 6 and the conveying table 3 for separating the workpieces w supplied from the linear feeder 6 one by one. 7.

このうちリニアフィーダ6は、搬送テーブル3にワークwを供給する供給フィーダ6aと、供給フィーダ6aまたは搬送テーブル3から排出されたワークwを供給フィーダ6aの上流端に戻す戻しフィーダ6bとからなり、リニアフィーダ6は搬送テーブル3に対して直角に設けられている。また分離シュート7は、供給フィーダ6aの下流端と搬送テーブル3との間に挟持されている。   Among these, the linear feeder 6 includes a supply feeder 6a that supplies the workpiece w to the conveyance table 3, and a return feeder 6b that returns the workpiece w discharged from the supply feeder 6a or the conveyance table 3 to the upstream end of the supply feeder 6a. The linear feeder 6 is provided at a right angle to the transport table 3. Further, the separation chute 7 is sandwiched between the downstream end of the supply feeder 6 a and the transport table 3.

なお、戻しフィーダ6bは供給フィーダ6aの下方に、供給フィーダ6aと平行に配置されている。   The return feeder 6b is arranged below the supply feeder 6a and in parallel with the supply feeder 6a.

図3(a)(b)に示すように、供給フィーダ6aのワーク搬送路は第1V形溝9を有している。この第1V形溝9は、図4(a)に示すようにワークの表裏判別手段として機能するものであり、長辺9aと短辺9bとを有し、第1V形溝9の内角は直角となり、長辺9aの斜角が水平面に対して略45°となっている。第1V形溝9の短辺9bの高さ寸法Lは、図4(b)に示すように、ワークwのコーナー部Rの半径より大きくなっている。図4(c)に示すように、ワークwが正常な搬送位置をとらないと(ワークwの表裏が逆になると)、ワークwの重心Gの垂線が第1V形溝9の短辺9bの稜部9cより外側にくる。図4(c)において、寸法xが0以上となる。これにより、供給フィーダ6a内でワークwが正常な搬送位置をとらないと(ワークwの表裏が異常の場合)、供給フィーダ6a内のワークwは戻しフィーダ6bに短辺9bを越えて滑落し戻される。   As shown in FIGS. 3A and 3B, the work conveyance path of the supply feeder 6 a has a first V-shaped groove 9. The first V-shaped groove 9 functions as means for discriminating the front and back of the workpiece as shown in FIG. 4A, has a long side 9a and a short side 9b, and the internal angle of the first V-shaped groove 9 is a right angle. Thus, the oblique angle of the long side 9a is approximately 45 ° with respect to the horizontal plane. As shown in FIG. 4B, the height dimension L of the short side 9b of the first V-shaped groove 9 is larger than the radius of the corner portion R of the workpiece w. As shown in FIG. 4C, when the workpiece w does not take a normal conveyance position (when the front and back of the workpiece w are reversed), the perpendicular line of the center of gravity G of the workpiece w is the short side 9b of the first V-shaped groove 9. It comes outside the ridge 9c. In FIG. 4C, the dimension x is 0 or more. As a result, if the workpiece w does not take a normal conveyance position in the supply feeder 6a (when the front and back of the workpiece w are abnormal), the workpiece w in the supply feeder 6a slides over the return feeder 6b beyond the short side 9b. Returned.

ここで図3(a)(b)に示すように、供給フィーダ6aの第1V形溝9の長辺9aは、戻しフィーダ6b側へ傾斜する傾斜面に対応し、短辺9bは戻しフィーダ6b側に位置している。   Here, as shown in FIGS. 3A and 3B, the long side 9a of the first V-shaped groove 9 of the supply feeder 6a corresponds to the inclined surface inclined toward the return feeder 6b, and the short side 9b is the return feeder 6b. Located on the side.

また図5に示すように分離シュート7の搬送面は、供給フィーダ6aの第1V形溝9に対応する第2V形溝15を有している。この第2V形溝15は第1V形溝9の長辺9aと同一平面上にある長辺15aと、第1V形溝9の短辺9bと同一平面上にある短辺15bとからなっている。この第2V形溝15は搬送テーブル3が停止したとき、その長辺15aが搬送テーブル3の周縁部に設けられたコの字状のワーク収納溝4の底面と一致し、かつ第2V形溝15の短辺15bがワーク収納溝4の回転方向の後側面に一致する。   Further, as shown in FIG. 5, the conveying surface of the separation chute 7 has a second V-shaped groove 15 corresponding to the first V-shaped groove 9 of the supply feeder 6a. The second V-shaped groove 15 includes a long side 15 a that is on the same plane as the long side 9 a of the first V-shaped groove 9 and a short side 15 b that is on the same plane as the short side 9 b of the first V-shaped groove 9. . The second V-shaped groove 15 has a long side 15a that coincides with the bottom surface of the U-shaped workpiece storage groove 4 provided at the peripheral edge of the conveying table 3 when the conveying table 3 stops, and the second V-shaped groove 15 The 15 short sides 15 b coincide with the rear side surface of the work storage groove 4 in the rotation direction.

図1および図6に示すように、分離シュート7の第2V形溝15の長辺15aには、分離シュート7を貫通して供給フィーダ6a側に吸引孔10が設けられ、また、搬送テーブル3側に噴射孔11が設けられている。吸引孔10と噴射孔11は、それぞれが図示しないエア制御手段を介して真空発生源および圧縮エア発生源に連通されている。   As shown in FIGS. 1 and 6, a suction hole 10 is provided in the long side 15 a of the second V-shaped groove 15 of the separation chute 7 through the separation chute 7 on the supply feeder 6 a side. An injection hole 11 is provided on the side. The suction hole 10 and the injection hole 11 are each communicated with a vacuum generation source and a compressed air generation source via an air control means (not shown).

図1、図5および図6に示すように、第2V形溝15に対向して、テーブルベース2を貫通するワーク装填孔12が設けられ、このワーク装填孔12は図示しない真空発生源に連通されて、ワーク装填孔12が常時負圧化されるようになっている。   As shown in FIGS. 1, 5, and 6, a work loading hole 12 that penetrates the table base 2 is provided opposite to the second V-shaped groove 15, and the work loading hole 12 communicates with a vacuum generation source (not shown). As a result, the work loading hole 12 is always negatively pressurized.

また、図1、図2および図7に示すように、ワーク供給手段6からワーク収納溝4の1ピッチ以上離れた位置に分離シュート7を貫通してワーク検知センサ8の投光器8aが設けられ、投光器8aに対向し、かつ少なくともワークwの厚さ寸法以上、分離シュート7面から離間して受光器8bが設けられている。ワーク検知センサ8の投光器8aは、分離シュート7のうち、供給フィーダ6aからワーク収納溝4の1ピッチ以上下流側に設けられている。   Further, as shown in FIGS. 1, 2 and 7, a projector 8a of the workpiece detection sensor 8 is provided through the separation chute 7 at a position separated from the workpiece supply means 6 by one pitch or more of the workpiece storage groove 4; A light receiver 8b is provided so as to face the light projector 8a and be separated from the surface of the separation chute 7 by at least the thickness dimension of the workpiece w. The light projector 8 a of the workpiece detection sensor 8 is provided in the separation chute 7 on the downstream side of one pitch or more of the workpiece storage groove 4 from the supply feeder 6 a.

図1、図7に示すように、ワーク検知センサ8に対向し、テーブルベース2を貫通してワーク排出孔13が設けられ、このワーク排出孔13は図示しないエア制御手段を介して圧縮エア発生源に連通されている。なお、図2のワーク収納溝4に装填されたワークwは、図示しない吸引手段により常時吸引され、回転搬送される。   As shown in FIGS. 1 and 7, a work discharge hole 13 is provided through the table base 2 so as to face the work detection sensor 8, and this work discharge hole 13 generates compressed air via an air control means (not shown). Communicated with the source. Note that the workpiece w loaded in the workpiece storage groove 4 in FIG. 2 is always sucked by a suction means (not shown) and is rotated and conveyed.

また本発明に用いられるワークwとしては、安定部(以下安定底面という)を有することが好ましい。例えばワークwの断面が長方形なら長辺の面、断面が異形状なら指定の安定面(図3のワークでは長辺面)を有することが好ましく、この安定底面が第1V形溝9の長辺9aの面側となって搬送される。なお安定底面はワークwの状態により適宜選択する。   Moreover, it is preferable that the workpiece | work w used for this invention has a stable part (henceforth a stable bottom face). For example, it is preferable to have a long side surface if the cross section of the work w is rectangular, and a designated stable surface (long side surface in the case of the work in FIG. 3) if the cross section is irregular. 9a is transported on the surface side. The stable bottom surface is appropriately selected depending on the state of the workpiece w.

次にこのような構成からなる本実施の形態の作用について説明する。   Next, the operation of the present embodiment having such a configuration will be described.

図1において、リニアフィーダ6は、例えば振動式リニアフィーダからなり、供給フィーダ6aは搬送テーブル3側を下流として安定底面、例えば長方形断面の長辺20aの面を有するワークwが互いに当接しながら整列搬送される。一方、戻しフィーダ6bは搬送テーブル3側を上流としてワークwが搬送され、戻しフィーダ6b上のワークwを供給フィーダ6aの上流に戻すようになっている。   In FIG. 1, the linear feeder 6 is composed of, for example, a vibration type linear feeder, and the supply feeder 6 a is aligned with the work w having a stable bottom surface, for example, a long side 20 a having a rectangular cross section, in contact with each other with the conveyance table 3 side as the downstream side. Be transported. On the other hand, the return feeder 6b is configured so that the workpiece w is conveyed with the conveyance table 3 side upstream, and the workpiece w on the return feeder 6b is returned upstream of the supply feeder 6a.

リニアフィーダ6の供給フィーダ6a上をワークwが搬送されると、図3(a)および図4(b)に示すように、供給フィーダ6aの第1V形溝9の長辺9aにワークwの断面の安定底面である長辺20aに対応する面が当接し、ワークwのコーナー部Rは第1V形溝9の短辺9bに当接する。このようにしてワークwはその表裏が正常な状態の搬送姿勢をとる。この場合、ワークwはその重心Gが第1V形溝9の長辺9a側に位置するため、安定して搬送される。   When the workpiece w is transported on the supply feeder 6a of the linear feeder 6, as shown in FIGS. 3 (a) and 4 (b), the workpiece w is placed on the long side 9a of the first V-shaped groove 9 of the supply feeder 6a. The surface corresponding to the long side 20 a which is the stable bottom surface of the cross section comes into contact, and the corner portion R of the work w comes into contact with the short side 9 b of the first V-shaped groove 9. In this way, the workpiece w assumes the conveying posture in which the front and back are normal. In this case, since the center of gravity G is located on the long side 9a side of the first V-shaped groove 9, the work w is stably conveyed.

一方、図3(b)および図4(c)に示すように、ワークwの断面の長辺20aが短辺9b側に当接した表裏反転の状態では、重心Gからの垂線が稜部9cから外れてしまう。このためワークwは供給フィーダ6aの第1V形溝9の外方に倒れて排出され、戻しフィーダ6b上に滑落して再び供給フィーダ6aの上流端に供給される。   On the other hand, as shown in FIGS. 3 (b) and 4 (c), in the inverted state where the long side 20a of the cross section of the workpiece w is in contact with the short side 9b, the perpendicular from the center of gravity G is the ridge 9c. It will come off. For this reason, the workpiece w falls down to the outside of the first V-shaped groove 9 of the supply feeder 6a, is discharged onto the return feeder 6b, and is supplied again to the upstream end of the supply feeder 6a.

次に正常な状態の搬送姿勢をとるワークwは、供給フィーダ6aの下流側に搬送され、分離シュート7の上流端において、吸引孔10の負圧に吸引されて移動が規制される。   Next, the workpiece w having a normal conveying posture is conveyed to the downstream side of the supply feeder 6a, and is sucked by the negative pressure of the suction hole 10 at the upstream end of the separation chute 7, so that the movement is restricted.

ここで制御部1aにより制御される分離シュート7の吸引孔10の負圧の吸引/停止、噴射孔11の分離エアの噴射/停止、および搬送テーブル3の間欠回転/停止のタイミングを図8に示す。   Here, the timing of suction / stop of the negative pressure of the suction hole 10 of the separation chute 7, the injection / stop of separation air of the injection hole 11, and the intermittent rotation / stop of the transfer table 3 controlled by the control unit 1a is shown in FIG. Show.

搬送テーブル3の回転中、ワークwが吸引孔10により分離シュート7上で分離吸引されて保持され、同時に停止ワークwより前に不良ワークwがあることを想定して噴射孔11から分離エアが噴射されて残存ワークwが分離シュート7から排除される。その直後に搬送テーブル3が停止する。この場合、噴射孔11からの分離エアは搬送テーブル3の回転開始直前から噴射が開始される。また、搬送テーブル3の停止直後に噴射孔11からの噴射および吸引孔10からの吸引がともに停止する。次に図6に示すように、吸引孔10に吸引されて分離シュート7上で停止していた先頭ワークwが、停止中の搬送テーブル3のワーク収納溝4の背面に位置するテーブルベース2のワーク装填孔12により吸引されてワーク収納溝4に装填される。 During the rotation of the transfer table 3, the workpiece w is separated and sucked and held on the separation chute 7 by the suction hole 10, and at the same time, the separation air is discharged from the injection hole 11 assuming that there is a defective workpiece w before the stopped workpiece w. The remaining work w is ejected from the separation chute 7 by being injected. Immediately thereafter, the transfer table 3 stops. In this case, the separation air from the injection hole 11 starts to be injected immediately before the rotation of the transport table 3 starts. Further, immediately after the conveyance table 3 is stopped, both the injection from the injection hole 11 and the suction from the suction hole 10 are stopped. Next, as shown in FIG. 6, the table base 2 positioned at the back of the work storage groove 4 of the transport table 3 that is stopped is the top work w 1 that has been sucked into the suction hole 10 and stopped on the separation chute 7. Are sucked through the workpiece loading hole 12 and loaded into the workpiece storage groove 4.

この場合、ワーク装填孔12は常時負圧化されているが、ワークwの吸引は搬送テーブル3のワーク収納溝4と装填吸引孔12とが対向したときに行われるため、ワーク収納溝4にワークwが装填されるタイミングは、図8に示すように搬送テーブル3の位置に依存する。   In this case, although the workpiece loading hole 12 is always at a negative pressure, the suction of the workpiece w is performed when the workpiece storage groove 4 of the transfer table 3 and the loading suction hole 12 face each other. The timing at which the workpiece w is loaded depends on the position of the transfer table 3 as shown in FIG.

分離シュート7上の先頭ワークwがワーク収納溝4に装填されると、再び吸引孔10が負圧となり、後続ワークwが分離シュート7上で分離吸引されて停止し、先頭ワークwと分離されるようになっている。 When the leading work w 1 on the separation chute 7 is loaded into the workpiece storage groove 4, the suction hole 10 again becomes negative pressure, the subsequent workpiece w 2 is separated and sucked on the separation chute 7 and stops, and the leading work w 1 is stopped. And are to be separated.

これらの動作は、確認センサ等による確認を行なうことなく、全てスケジュールされたタイミングで行なわれる。このため、誤って後続ワークwが先頭ワークwに連続して吸引孔10を通過してしまうことも考えられる。この場合は、搬送テーブル3が停止する直前に、噴射孔11からの噴射エアにより後続ワークwを分離シュート7から排出して戻しフィーダ6b上に落下させる。 These operations are all performed at a scheduled timing without confirmation by a confirmation sensor or the like. Therefore, subsequent work w 2 is also conceivable that get through the suction holes 10 in succession beginning work w 1 by mistake. In this case, immediately before the carrying table 3 is stopped, it is dropped onto subsequent work w 2 back to discharge from the separating chute 7 feeder 6b by jet air from the injection hole 11.

他方、図7に示すように、ワーク収納溝4に装填されたワークwの装填姿勢が不完全で、ワークwの一部がワーク収納溝4から突出している場合、当該ワークwがワーク検知センサ8により検出される。次にワーク検知センサ8からの信号により、制御部1aの指令でワーク排出孔13に圧縮エアを噴出する。このとき、ワークwはワーク収納溝4から排出され、分離シュート7の外周曲面を経由して戻しフィーダ6bに落下する。   On the other hand, as shown in FIG. 7, when the loading posture of the workpiece w loaded in the workpiece storage groove 4 is incomplete and a part of the workpiece w protrudes from the workpiece storage groove 4, the workpiece w is detected by the workpiece detection sensor. 8 is detected. Next, compressed air is jetted into the workpiece discharge hole 13 in accordance with a command from the control unit 1a by a signal from the workpiece detection sensor 8. At this time, the workpiece w is discharged from the workpiece storage groove 4 and falls to the return feeder 6 b via the outer peripheral curved surface of the separation chute 7.

以上のように、本実施の形態によれば、ワーク詰りを生じさせることなく、1つ1つのワークを分離させながら、搬送テーブルのワーク収納溝に確実に装填することができる。   As described above, according to the present embodiment, each work can be reliably loaded into the work storage groove of the transfer table without causing work clogging.

なお、本発明によるワーク搬送システムは、テーピング装置などのように間欠回転する搬送テーブルを有する装置にも用いられる。   In addition, the workpiece conveyance system by this invention is used also for the apparatus which has the conveyance table which rotates intermittently like a taping apparatus.

また、第1V形溝9の長辺9aの斜角を45°とした例を示したが、これに限らず、ワークwの形状に合せて、長辺9a側を水平面から35°以上にして短辺9b側に落下し易くしてもよく、長辺9aの斜角は45°に限定されるものではない。   In addition, the example in which the oblique angle of the long side 9a of the first V-shaped groove 9 is 45 ° is shown, but not limited to this, the long side 9a side is set to 35 ° or more from the horizontal plane according to the shape of the workpiece w. It may be easy to fall to the short side 9b side, and the oblique angle of the long side 9a is not limited to 45 °.

さらにまた図示しないが、ワーク収納溝4に確認センサを設けることにより、ワーク排出孔13を省いても良い。この場合の確認センサは、光学センサの他、負圧センサや画像処理などによる方法でも良く、ワーク収納溝4にワークwが完全な姿勢で装填されたことが確認できるものであれば、そのセンサの種類に拘るものではない。   Further, although not shown, the work discharge hole 13 may be omitted by providing a confirmation sensor in the work storage groove 4. The confirmation sensor in this case may be a method using a negative pressure sensor or image processing in addition to the optical sensor. If the work w can be confirmed to be loaded in a complete posture in the work storage groove 4, the sensor It is not related to the kind of.

また、ワークwの形状により第1V形溝9および第2V形溝15の長辺9a、15a、短辺9b、15bの寸法も前記動作を確実に行えるように変更することができる。   Further, the dimensions of the long sides 9a and 15a and the short sides 9b and 15b of the first V-shaped groove 9 and the second V-shaped groove 15 can be changed depending on the shape of the workpiece w so that the operation can be performed reliably.

本発明によるワーク搬送システムの一実施の形態を示す平面図。The top view which shows one Embodiment of the workpiece conveyance system by this invention. 本発明によるワーク搬送システムの一実施の形態を示す正面図。The front view which shows one Embodiment of the workpiece conveyance system by this invention. リニアフィーダを示す図。The figure which shows a linear feeder. リニアフィーダの供給フィーダを示す図。The figure which shows the supply feeder of a linear feeder. 分離シュートを示す正面図。The front view which shows a separation chute. ワーク装填孔を示す側面図。The side view which shows a workpiece | work loading hole. ワーク排出孔を示す側面図。The side view which shows a workpiece | work discharge hole. 本発明の作用を示すタイムチャート。The time chart which shows the effect | action of this invention. 従来のワーク搬送システムを示す図。The figure which shows the conventional workpiece conveyance system.

符号の説明Explanation of symbols

1 ワーク搬送システム
2 テーブルベース
3 搬送テーブル
4 ワーク収納溝
6 リニアフィーダ
6a 供給フィーダ
6b 戻しフィーダ
7 分離シュート
8 ワーク検知センサ
8a 投光器
8b 受光器
9 第1V形溝
9a 長辺
9b 短辺
9c 稜部
10 吸引孔
11 噴射孔
12 ワーク装填孔
13 ワーク排出孔
15 第2V形溝
15a 長辺
15b 短辺
DESCRIPTION OF SYMBOLS 1 Work conveyance system 2 Table base 3 Conveyance table 4 Work storage groove 6 Linear feeder 6a Supply feeder 6b Return feeder 7 Separation chute 8 Work detection sensor 8a Emitter 8b Light receiver 9 1st V-shaped groove 9a Long side 9b Short side 9c Edge 10 Suction hole 11 Injection hole 12 Workpiece loading hole 13 Work discharge hole 15 Second V-shaped groove 15a Long side 15b Short side

Claims (6)

略垂直に配置されたテーブルベースと、
テーブルベース上に回転自在に配置され、外周に複数のワーク収納部を有する搬送テーブルと、
搬送テーブルに対して直交して配置され、ワーク収納部にワークを互いに当接させかつ連続して供給するリニアフィーダと、
リニアフィーダと搬送テーブルとの間に設けられ、リニアフィーダから供給されるワークを一つずつ分離する分離シュートとを備え、
リニアフィーダは供給フィーダと、供給フィーダに平行して設けられ、供給フィーダより下方に配置されて、供給フィーダから排出されたワークを供給フィーダの上流端に戻す戻しフィーダとを有し、
供給フィーダは第1V形溝を有し、第1V形溝は戻しフィーダ側へ傾斜する傾斜面に対応する長辺と、戻しフィーダ側に位置する短辺とからなり、
分離シュートは、供給フィーダの第1V形溝に対応して形成され、長辺と短辺を有する第2V形溝を有し、
テーブルベースの分離シュートの第2V形溝に対応する部分に、分離シュート上のワークを搬送テーブルのワーク収納部に吸引するワーク装填孔を設け、
分離シュートの第2V形溝には、リニアフィーダから供給されるワークを一時的に吸引する吸引孔と、吸引孔の下流側に位置し分離シュート上の残存ワークにエアを噴射する噴射孔とが設けられ、
制御部により搬送テーブルの停止中に、ワーク装填孔によりワークを搬送テーブルのワーク収納部に吸引し、
噴射孔からのエア噴射を搬送テーブルの回転開始直前に開始して分離シュート上の残存ワークを戻しフィーダに向けて排出し、搬送テーブルの回転停止直後に停止し、
吸引孔からの吸引をワークが分離シュートから搬送テーブルのワーク収納部に装填される時に開始してワークを一時的に吸引し、搬送テーブルの回転停止直後に停止するよう搬送テーブルと、ワーク装填孔による吸引と、噴射孔によるエア噴射と、吸引孔による吸引を制御することを特徴とするワーク搬送システム。
A table base arranged substantially vertically;
A transport table that is rotatably arranged on the table base and has a plurality of work storage portions on the outer periphery;
A linear feeder that is arranged orthogonally to the transfer table, and in which the workpieces are brought into contact with each other and continuously supplied to the workpiece storage unit;
A separation chute that is provided between the linear feeder and the transfer table and separates workpieces supplied from the linear feeder one by one;
The linear feeder has a supply feeder and a return feeder that is provided in parallel with the supply feeder and disposed below the supply feeder to return the work discharged from the supply feeder to the upstream end of the supply feeder,
The supply feeder has a first V-shaped groove, and the first V-shaped groove has a long side corresponding to an inclined surface inclined toward the return feeder side and a short side positioned on the return feeder side,
The separation chute is formed corresponding to the first V-shaped groove of the supply feeder, and has a second V-shaped groove having a long side and a short side,
In the part corresponding to the second V-shaped groove of the separation chute of the table base, a work loading hole for sucking the work on the separation chute into the work storage part of the transfer table is provided,
The second V-shaped groove of the separation chute has a suction hole for temporarily sucking the workpiece supplied from the linear feeder and an injection hole for injecting air to the remaining workpiece on the separation chute located downstream of the suction hole. Provided,
While the conveyance table is stopped by the control unit, the workpiece is sucked into the workpiece storage unit of the conveyance table by the workpiece loading hole,
Air injection from the injection hole is started immediately before the start of rotation of the transport table, the remaining work on the separation chute is discharged toward the feeder, and stopped immediately after the stop of rotation of the transport table,
Conveying table and work loading hole so that suction from the suction hole starts when the work is loaded from the separation chute to the work storage part of the transport table, temporarily sucks the work and stops immediately after the rotation of the transport table stops A workpiece transfer system that controls suction by the air, air injection by the injection hole, and suction by the suction hole .
供給フィーダの第1V形溝の長辺は、水平面に対して35°以上傾斜することを特徴とする請求項1記載のワーク搬送システム。   The work conveying system according to claim 1, wherein a long side of the first V-shaped groove of the supply feeder is inclined by 35 ° or more with respect to a horizontal plane. 搬送テーブルのワーク収納部の底面は、分離シュートの第2V形溝の長辺に対応していることを特徴とする請求項記載のワーク搬送システム。 The bottom surface of the workpiece storage unit of the conveying table, work conveying system according to claim 1, characterized in that it corresponds to the long side of the 2V-shaped groove of the separate chute. 分離シュートのうち、供給フィーダからワーク収納部の1ピッチ以上下流側に、ワーク収納部に正しく装填されないワークを検出するためのワーク検知センサを設けたことを特徴とする請求項記載のワーク搬送システム。 Of the separated shoot, on the downstream side more than one pitch of the workpiece storage unit from the supply feeder workpiece transfer according to claim 1, characterized in that a workpiece detection sensor for detecting a workpiece which is not properly loaded in the workpiece storage unit system. テーブルベースのうちワーク検知センサに対応する部分に、ワーク収納部に正しく装填されないワークにエア噴出して戻しフィーダに向けて排出するためのワーク排出孔を設けたことを特徴とする請求項記載のワーク搬送システム。 A portion corresponding to the work detection sensor of the table base, according to claim 4, characterized in that a workpiece discharge hole for discharging toward the back to air ejection in not properly loaded in the workpiece storage unit work feeder Work transfer system. 供給フィーダの第1V形溝の長辺は分離シュートの第2V形溝の長辺と同一平面上にあり、第1V形溝の短辺は第2V形溝の短辺と同一平面上にあることを特徴とする請求項記載のワーク搬送システム。 The long side of the first V-shaped groove of the supply feeder is flush with the long side of the second V-shaped groove of the separation chute, and the short side of the first V-shaped groove is flush with the short side of the second V-shaped groove. The workpiece transfer system according to claim 1 .
JP2004195583A 2004-07-01 2004-07-01 Work transfer system Expired - Lifetime JP4446089B2 (en)

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JP2004195583A JP4446089B2 (en) 2004-07-01 2004-07-01 Work transfer system
TW094118767A TWI278257B (en) 2004-07-01 2005-06-07 Work piece transport system
KR1020050052929A KR100682813B1 (en) 2004-07-01 2005-06-20 Work conveyance system
CNB2005100822045A CN100404398C (en) 2004-07-01 2005-07-01 Work piece transport system

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CN100404398C (en) 2008-07-23
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