WO2011043052A1 - Flat plate-conveying device - Google Patents

Flat plate-conveying device Download PDF

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Publication number
WO2011043052A1
WO2011043052A1 PCT/JP2010/005938 JP2010005938W WO2011043052A1 WO 2011043052 A1 WO2011043052 A1 WO 2011043052A1 JP 2010005938 W JP2010005938 W JP 2010005938W WO 2011043052 A1 WO2011043052 A1 WO 2011043052A1
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Prior art keywords
flat plate
glass substrate
rotating shaft
guide roller
conveyance
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PCT/JP2010/005938
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French (fr)
Japanese (ja)
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中村久和
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シャープ株式会社
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Publication of WO2011043052A1 publication Critical patent/WO2011043052A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G49/00—Conveying systems characterised by their application for specified purposes not otherwise provided for
    • B65G49/05—Conveying systems characterised by their application for specified purposes not otherwise provided for for fragile or damageable materials or articles
    • B65G49/06—Conveying systems characterised by their application for specified purposes not otherwise provided for for fragile or damageable materials or articles for fragile sheets, e.g. glass
    • B65G49/063—Transporting devices for sheet glass
    • B65G49/064—Transporting devices for sheet glass in a horizontal position

Definitions

  • the present invention relates to a flat plate transport device for transporting a flat plate such as a glass substrate used in a liquid crystal display, and particularly to improve the straightness of the flat plate.
  • the flat plate conveyance device of Patent Document 1 includes a substrate conveyance roller in which a conveyance roller shaft fixing portion provided in a portion that does not contact the substrate is divided, and stable conveyance can be obtained without affecting the substrate. I am doing so.
  • a guide roller with a large outer diameter arranged on the outer side in the axial direction of the rotating shaft is moved inward in the axial direction so that the side surface of the flat plate is forced back to the axial center from the outer side in the axial direction.
  • a flat plate conveying device is also known.
  • the present invention has been made in view of such points, and the object of the present invention is to have a straight configuration of a flat plate as much as possible without touching the side surface or the surface of the flat plate as much as possible even with a long distance. Is to keep
  • the width of the guide roller which is provided at a predetermined position of the transport line and pushes back the flat plate so as to advance straight along the traveling direction of the transport line is gradually narrowed.
  • the flat plate conveying device is A plurality of rotating shafts arranged at predetermined intervals in the traveling direction of the flat plate; A plurality of transport rollers that are rotatably arranged on each of the rotating shafts and abut on the back side of the flat plate; The plurality of rotating shafts in front of each position are each provided with a guide roller having an outer diameter larger than that of the conveying roller on the outer side in the axial direction of the rotating shaft, and the maximum diameter of the guide rollers facing each rotating shaft.
  • the interval between the portions is larger than the width of the flat plate and gradually decreases in the traveling direction.
  • the flat plate is corrected so as to surely advance straightly little by little.
  • the guide roller which pushes back so that a flat plate may advance straightly with respect to an advancing direction may be provided only in front of each position instead of all the rotating shafts, and the frequency
  • At least a contact surface of the guide roller provided on the rotating shaft provided on the near side with the flat plate has an outer diameter toward the inner side in the axial direction of the rotating shaft. Is gradually getting smaller.
  • the flat plate is a glass substrate used for a liquid crystal display panel.
  • a glass substrate for a liquid crystal display panel whose size is increasing can be efficiently transported to each position on the production line without being damaged.
  • the guide rollers whose intervals are gradually narrowed toward the advancing direction of the flat plate are respectively provided on the outer sides in the axial direction of the plurality of rotating shafts before each position of the production line.
  • the flat plate conveying device 1 is disposed on a production line L of a liquid crystal display panel (not shown), for example. It plays the role of transporting the glass substrate G as a flat plate to each position above.
  • a size of the glass substrate G for example, a size of about 3 m ⁇ about 3 m ⁇ 0.7 mm can be considered.
  • glass first and second substrate sorting devices 5 and 6 for loading a plurality of glass substrates G into the cassette 3 are arranged at two positions on the production line L.
  • a plurality of transfer rotary shafts 7 are arranged at predetermined intervals in the traveling direction of the glass substrate G.
  • the transport rotating shaft 7 is driven by a motor or the like at a predetermined location, and the other transport rotating shafts 7 are configured to freely rotate without applying power.
  • the transport speed of the glass substrate G is suppressed to, for example, 10 to 30 m / min.
  • a plurality of transport rollers 8 are rotatably disposed on each transport rotary shaft 7.
  • the outer diameter of the transport roller 8 is the same on the same transport rotating shaft 7, but is not constant throughout the production line L, and is, for example, an arbitrary size with a diameter of 50 mm to 300 mm. What is necessary is just to change the space
  • FIG. Conveying rollers 8 arranged on one conveying rotating shaft 7 have the same outer diameter and are arranged at substantially equal intervals, and the outer peripheral surface thereof abuts on the back side of the glass substrate G to manufacture the glass substrate G. It is configured to convey the line L forward.
  • the conveying roller 8 is arranged on the outer side, and guide rollers 13, 14, 15 having an outer diameter larger than that of the conveying roller 8 are provided on the outer side in the axial direction.
  • three alignment rotation shafts 9, 10, 11 are arranged between the first glass substrate distribution device 5 and the second glass substrate distribution device 6.
  • the contact surface of the guide roller 13 provided on the first alignment rotary shaft 9 and the second alignment rotary shaft 10 with the glass substrate G is on the inner side in the axial direction of the alignment rotary shafts 9 and 10.
  • Tapered surfaces 13a and 14a are formed with gradually decreasing outer diameters.
  • the minimum diameters of the tapered surfaces 13 a and 14 a are equal to the outer diameter of the transport roller 8.
  • the guide roller 14 of the third alignment rotating shaft 11 is not provided with such tapered surfaces 13a, 14a.
  • the distance between the maximum diameter portions of the guide rollers 13, 14, 15 facing the direction from the first alignment rotary shaft 9 to the third alignment rotary shaft 11 gradually decreases in the traveling direction. . That is, the distance L2 between the maximum diameter portions of the opposing guide roller 13 of the first alignment rotating shaft 9, the interval L2 between the maximum diameter portions of the opposing guide roller 14 of the second alignment rotating shaft 10, and the third. are gradually reduced in the order of the distance L3 between the axially inner sides of the guide rollers 15 facing the alignment rotating shaft 11 (L1> L2> L3).
  • the first opposing guide so that the corners of the glass substrate G pushed back in turn by the guide rollers 13, 14, 15 do not get on the front (downstream) guide rollers 14, 15 of the production line L.
  • the interval between the inner side surfaces of the roller 13 and the interval between the maximum diameter portions of the second opposing guide roller 14 are substantially equal, and the interval between the inner side surfaces of the second guide roller 14 and the third opposing guide roller 15 The distance between the largest diameter portions is almost equal. Even at the interval L3 of the third guide roller 15 having the narrowest width, at least the width W of the glass substrate G is larger (L3> W).
  • the glass substrate G is transported forward by the transport roller 8 on the transport rotating shaft 7. If the production line L is a long distance, the glass substrate G may be shifted left and right with respect to the traveling direction during conveyance.
  • a plurality of glass substrates G are stacked in the cassette 3 by the first glass substrate sorting apparatus 5, and the remaining glass substrates G are further conveyed forward.
  • the glass substrate G when the glass substrate G is largely displaced from side to side, the glass substrate G first comes into contact with the guide roller 13 of the front rotation shaft 9 for alignment. Since the taper surface 13a of the guide roller 13 gradually decreases in outer diameter toward the left and right inner sides, the left and right side surfaces of the glass substrate G come into contact smoothly and are easily pushed back to the left and right inner sides.
  • the glass substrate G pushed back by the first guide roller 13 is brought into contact with the contact surface of the second guide roller 13 disposed on the left and right inner sides of the first guide roller 13 and further pushed back to the left and right inside. Also at this time, since the outer diameter of the tapered surface 14a of the guide roller 14 gradually decreases toward the left and right inner sides, the left and right side surfaces of the glass substrate G abut smoothly and are easily pushed back to the left and right inner sides.
  • the glass substrate G enters the second glass sorting device 6 and is loaded on the cassette 3 while being regulated so as not to be moved left and right by the guide rollers 15 located on the left and right inner sides of the second guide roller 14.
  • the glass substrate G that has not been loaded by the second glass sorting device 6 is further transported to the front position.
  • the glass substrate G is not brought into contact with the first guide roller 13, but is first brought into contact with the second guide roller 14, and the shake is corrected in the same manner.
  • the glass substrate G is corrected so as to surely advance straight in the traveling direction.
  • the guide rollers 13, 14, 15 that push the glass substrate G straight back with respect to the traveling direction are not provided on all the rotating shafts 7, 9, 10, 11, but only in front of each position. The number of times 13, 14, and 15 contact the glass substrate G is minimized.
  • the glass substrate G for liquid crystal display panels whose size is increasing can be efficiently conveyed to each position on the production line L without being damaged.
  • the distance between the rotation axes 9, 10, and 11 before the positions on the production line L is shifted outward in the axial direction of the glass substrate G.
  • the straightness of the glass substrate G is as simple as possible, even with a long distance, without touching the side surface or the surface of the glass substrate G as much as possible. Can keep.
  • the present invention may be configured as follows with respect to the above embodiment.
  • the example of the glass substrate G of a display panel was shown as a flat plate, it is not limited to this, What is necessary is just a plate-shaped to-be-conveyed object.
  • the guide rollers 13, 14, and 15 are arranged in front of the glass substrate sorting apparatus 6 as a position, but they may be provided in front of any position, and are not necessarily provided in front of all positions. Not only the guide rollers 13 and 14 on the near side but also the guide roller 15 on the back side may be all guide rollers with a taper, or all may be guide rollers without a taper, and the ratio is not particularly limited. Although the number of the alignment rotating shafts 9, 10, and 11 is three, it may be any number, two, or four or more.
  • the material of the guide rollers 13, 14, 15 is not particularly limited, but may be a resin molded product or a metal molded product, and the contact surface with the glass substrate G may be covered with rubber or the like. .
  • the present invention is useful not only for a glass substrate but also for a flat plate conveying apparatus that conveys a flat plate-like body.

Abstract

A flat plate-conveying device (1) for conveying a glass substrate (G) (flat plate) to each position in a manufacturing line (L), wherein rotation shafts (7) for conveyance are disposed at predetermined intervals in the direction of advance of the glass substrate (G), and rollers (8) for conveyance which make contact with the rear surface side of the glass substrate (G) are rotatably disposed on each rotation shaft (7) for conveyance. Rotation shafts (9, 10, 11) for alignment which are provided before a second glass sorting device (6) are provided, on the outer sides thereof in the axial direction, with guide rollers (13, 14, 15) having a larger outer diameter than the conveyance roller (8). The distance between the maximum diameter sections of the guide rollers (13, 14, 15) which face each other is gradually reduced in the advance direction of the glass substrate (G) (L1 > L2 > L3). Thus, although simple in configuration, the flat plate-conveying device allows the flat plate to advance straightforward without being in contact with the side surfaces and the surface of the flat plate as much as possible even in a long distance.

Description

平板搬送装置Flat plate conveyor
　本発明は、液晶ディスプレイに使用するガラス基板などの平板を搬送する平板搬送装置に関し、特にその平板の直進性を改善するものである。 The present invention relates to a flat plate transport device for transporting a flat plate such as a glass substrate used in a liquid crystal display, and particularly to improve the straightness of the flat plate.
　従来より、製造ライン上でガラス基板などの平板を搬送する平板搬送装置は知られている。例えば、特許文献１の平板搬送装置は、基板に接触しない部位に設けられた搬送ローラーシャフト固定部位が分割式である基板搬送用ローラーを備え、基板に影響を及ぼすことなく安定した搬送が得られるようにしている。 Conventionally, a flat plate conveying apparatus for conveying a flat plate such as a glass substrate on a production line is known. For example, the flat plate conveyance device of Patent Document 1 includes a substrate conveyance roller in which a conveyance roller shaft fixing portion provided in a portion that does not contact the substrate is divided, and stable conveyance can be obtained without affecting the substrate. I am doing so.
　また、平板の直進性を保つために回転軸の軸方向外側に配置した外径の大きいガイドローラーを軸方向内側に移動させて軸方向外側から平板の側面を強制的に軸方向中央に押し戻すようにする平板搬送装置も知られている。 Also, in order to keep the straightness of the flat plate, a guide roller with a large outer diameter arranged on the outer side in the axial direction of the rotating shaft is moved inward in the axial direction so that the side surface of the flat plate is forced back to the axial center from the outer side in the axial direction. A flat plate conveying device is also known.
特開２００６－８９１４８号公報JP 2006-89148 A
　しかしながら、上記特許文献１の平板搬送装置では、軸方向外側に配置されたローラーの外周から延びるリブを、頻繁に基板の側面に当接させて基板の位置決め（センタリング）をしているので、製造ラインが長距離になればなるほど、基板側面が損傷しやすいという問題があった。 However, in the flat plate conveying device of the above-mentioned Patent Document 1, since the rib extending from the outer periphery of the roller arranged on the outer side in the axial direction is frequently brought into contact with the side surface of the substrate, the substrate is positioned (centering). There was a problem that the longer the line was, the easier the side of the substrate was damaged.
　また、回転軸の軸方向外側のガイドローラーを可動式にするには、そのローラーを軸方向に沿って移動させるための複雑な機構が必要となり、また、押し戻し量を調整して平板の直進性を保つ制御も複雑となる。 In addition, in order to make the guide roller axially outer of the rotating shaft movable, a complicated mechanism is required to move the roller along the axial direction, and the straightness of the flat plate can be adjusted by adjusting the push back amount. The control to maintain is also complicated.
　本発明は、かかる点に鑑みてなされたものであり、その目的とするところは、簡単な構成で、長距離であっても、できるだけ平板の側面や表面に接触することなく、平板の直進性を保つことにある。 The present invention has been made in view of such points, and the object of the present invention is to have a straight configuration of a flat plate as much as possible without touching the side surface or the surface of the flat plate as much as possible even with a long distance. Is to keep
　上記の目的を達成するために、この発明では、搬送ラインの所定位置に設けた、平板を搬送ラインの進行方向に沿って真っ直ぐ進むように押し戻すガイドローラーの幅を徐々に狭くした。 In order to achieve the above object, in the present invention, the width of the guide roller which is provided at a predetermined position of the transport line and pushes back the flat plate so as to advance straight along the traveling direction of the transport line is gradually narrowed.
　具体的には、第１の発明では、製造ライン上の各ポジションに平板を搬送する平板搬送装置を前提とし、
　上記平板搬送装置は、
　上記平板の進行方向に所定の間隔をあけて配置された複数の回転軸と、
　上記各回転軸に回転可能に配置され、上記平板の裏面側に当接する複数の搬送用ローラーとを備え、
　上記各ポジションの手前における上記複数の回転軸には、該回転軸の軸方向外側に上記搬送用ローラーよりも外径の大きいガイドローラーがそれぞれ設けられ、各回転軸の対向するガイドローラーの最大径部分間の間隔は、上記平板の幅よりも大きく、進行方向に向かって徐々に狭くなっている。 Specifically, in the first invention, on the premise of a flat plate transport device that transports a flat plate to each position on the production line,
The flat plate conveying device is
A plurality of rotating shafts arranged at predetermined intervals in the traveling direction of the flat plate;
A plurality of transport rollers that are rotatably arranged on each of the rotating shafts and abut on the back side of the flat plate;
The plurality of rotating shafts in front of each position are each provided with a guide roller having an outer diameter larger than that of the conveying roller on the outer side in the axial direction of the rotating shaft, and the maximum diameter of the guide rollers facing each rotating shaft. The interval between the portions is larger than the width of the flat plate and gradually decreases in the traveling direction.
　上記の構成によると、進行方向に向かって対向するガイドローラーの最大径部分間の幅が徐々に狭くなっているので、平板が少しずつ確実に真っ直ぐに進むように修正される。そして、平板を進行方向に対して真っ直ぐに進むように押し戻すガイドローラーを、すべての回転軸にではなく、各ポジションの手前にのみ設けることで、ガイドローラーが平板に当接する回数が減る。 According to the above configuration, since the width between the maximum diameter portions of the guide rollers facing each other in the traveling direction is gradually narrowed, the flat plate is corrected so as to surely advance straightly little by little. And the guide roller which pushes back so that a flat plate may advance straightly with respect to an advancing direction may be provided only in front of each position instead of all the rotating shafts, and the frequency | count that a guide roller will contact | abut to a flat plate reduces.
　第２の発明では、第１の発明において、
　上記各ポジションの手前の上記複数の回転軸のうち、少なくとも手前側に設けた回転軸に設けた上記ガイドローラーにおける上記平板との当接面は、上記回転軸の軸方向内側に向かって外径が徐々に小さくなっている。 In the second invention, in the first invention,
Of the plurality of rotating shafts before each position, at least a contact surface of the guide roller provided on the rotating shaft provided on the near side with the flat plate has an outer diameter toward the inner side in the axial direction of the rotating shaft. Is gradually getting smaller.
　上記の構成によると、ガイドローラーの平板側面に対する当接面に傾斜が設けられているので、進行方向中心からずれたガラス基板の側面が滑らかにガイドローラーの当接面に当接し、さらに容易に平板の直進性が確保される。 According to the above configuration, since the contact surface with respect to the flat plate side surface of the guide roller is inclined, the side surface of the glass substrate that is shifted from the center of the traveling direction smoothly contacts the contact surface of the guide roller, further easily. Straightness of the flat plate is ensured.
　第３の発明では、第１又は第２の発明において、
　上記平板は、液晶表示パネルに使用するガラス基板とする。 In the third invention, in the first or second invention,
The flat plate is a glass substrate used for a liquid crystal display panel.
　上記の構成によると、大型化が進んでいる液晶表示パネル用のガラス基板を、傷を付けることなく、効率よく製造ライン上の各ポジションに搬送することができる。 According to the above configuration, a glass substrate for a liquid crystal display panel whose size is increasing can be efficiently transported to each position on the production line without being damaged.
　以上説明したように、本発明によれば、製造ラインの各ポジションの手前における複数の回転軸の軸方向外側に、互いの間隔が平板の進行方向に向かって徐々に狭くなるガイドローラーをそれぞれ設けたことにより、簡単な構成で、長距離であっても、できるだけ平板の側面や表面に接触することなく、平板の直進性を保つようにすることができる。 As described above, according to the present invention, the guide rollers whose intervals are gradually narrowed toward the advancing direction of the flat plate are respectively provided on the outer sides in the axial direction of the plurality of rotating shafts before each position of the production line. As a result, it is possible to keep the straightness of the flat plate with a simple configuration, even when the distance is long, without touching the side surface or the surface of the flat plate as much as possible.
本発明の実施形態にかかる平板搬送装置を示す平面図である。It is a top view which shows the flat plate conveying apparatus concerning embodiment of this invention. 本発明の実施形態にかかる平板搬送装置を示す側面図である。It is a side view which shows the flat plate conveying apparatus concerning embodiment of this invention.
　以下、本発明の実施形態を図面に基づいて説明する。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
　図１及び図２は、本発明の実施形態の平板搬送装置１を示し、この平板搬送装置１は、例えば、液晶表示パネル（図示せず）の製造ラインＬ上に配置され、この製造ラインＬ上の各ポジションに平板としてのガラス基板Ｇを搬送する役割を果たしている。ガラス基板Ｇのサイズとしては、例えば、約３ｍ×約３ｍ×０．７ｍｍのものが考えられる。 1 and 2 show a flat plate conveying device 1 according to an embodiment of the present invention. The flat plate conveying device 1 is disposed on a production line L of a liquid crystal display panel (not shown), for example. It plays the role of transporting the glass substrate G as a flat plate to each position above. As the size of the glass substrate G, for example, a size of about 3 m × about 3 m × 0.7 mm can be considered.
　図１及び図２に示すように、製造ラインＬ上のある２つのポジションに複数のガラス基板Ｇをカセット３に積み込むガラス第１及び第２基板振り分け装置５，６が配置されている。 As shown in FIGS. 1 and 2, glass first and second substrate sorting devices 5 and 6 for loading a plurality of glass substrates G into the cassette 3 are arranged at two positions on the production line L.
　そして、平板搬送装置１には、ガラス基板Ｇの進行方向に所定の間隔をあけて複数の搬送用回転軸７が配置されている。例えば、複数の搬送用回転軸７のうち、所定の箇所で搬送用回転軸７がモータ等で駆動され、その他の搬送用回転軸７は、特に動力を加えないで自由に回転するように構成されている。ガラス基板Ｇが搬送用ローラー８上で滑ってしまわないように、ガラス基板Ｇの搬送スピードは、例えば１０～３０ｍ／分に抑えられている。 In the flat plate transfer device 1, a plurality of transfer rotary shafts 7 are arranged at predetermined intervals in the traveling direction of the glass substrate G. For example, among the plurality of transport rotating shafts 7, the transport rotating shaft 7 is driven by a motor or the like at a predetermined location, and the other transport rotating shafts 7 are configured to freely rotate without applying power. Has been. In order to prevent the glass substrate G from sliding on the transport roller 8, the transport speed of the glass substrate G is suppressed to, for example, 10 to 30 m / min.
　各搬送用回転軸７には、複数の搬送用ローラー８が回転可能に配置されている。搬送用ローラー８の外径は、同一の搬送用回転軸７上では同一であるが、製造ラインＬ全体で一定というわけではなく、例えば、直径５０ｍｍ～３００ｍｍの任意の大きさである。搬送用ローラー８の間隔もガラス基板Ｇの大きさや厚さに合わせて変更すればよい。１本の搬送用回転軸７に配置される搬送用ローラー８は、同じ外径のものが略等間隔に配置され、その外周面がガラス基板Ｇの裏面側に当接してガラス基板Ｇを製造ラインＬの前方へ搬送するように構成されている。 A plurality of transport rollers 8 are rotatably disposed on each transport rotary shaft 7. The outer diameter of the transport roller 8 is the same on the same transport rotating shaft 7, but is not constant throughout the production line L, and is, for example, an arbitrary size with a diameter of 50 mm to 300 mm. What is necessary is just to change the space | interval of the roller 8 for conveyance according to the magnitude | size and thickness of the glass substrate G. FIG. Conveying rollers 8 arranged on one conveying rotating shaft 7 have the same outer diameter and are arranged at substantially equal intervals, and the outer peripheral surface thereof abuts on the back side of the glass substrate G to manufacture the glass substrate G. It is configured to convey the line L forward.
　そして、例えば、第１ガラス基板振り分け装置５と第２ガラス基板振り分け装置６との間の複数のアライメント用回転軸９，１０，１１において、軸方向中間には、上記搬送用回転軸７と同様に搬送用ローラー８が配置され、その軸方向外側に、この搬送用ローラー８よりも外径の大きいガイドローラー１３，１４，１５が設けられている。本実施形態では、例えば第１ガラス基板振り分け装置５と第２ガラス基板振り分け装置６との間に３本のアライメント用回転軸９，１０，１１が配置されている。そして、例えば、１番目のアライメント用回転軸９と２番目のアライメント用回転軸１０に設けたガイドローラー１３のガラス基板Ｇとの当接面は、アライメント用回転軸９，１０の軸方向内側に向かって外径が徐々に小さくなるテーパー面１３ａ，１４ａが形成されている。テーパー面１３ａ，１４ａの最小径は、搬送用ローラー８の外径と同等となっている。３番目のアライメント用回転軸１１のガイドローラー１４は、このようなテーパー面１３ａ，１４ａが設けられていない。 For example, in the plurality of alignment rotation shafts 9, 10, 11 between the first glass substrate distribution device 5 and the second glass substrate distribution device 6, in the middle in the axial direction, the same as the rotation shaft 7 for conveyance. The conveying roller 8 is arranged on the outer side, and guide rollers 13, 14, 15 having an outer diameter larger than that of the conveying roller 8 are provided on the outer side in the axial direction. In the present embodiment, for example, three alignment rotation shafts 9, 10, 11 are arranged between the first glass substrate distribution device 5 and the second glass substrate distribution device 6. For example, the contact surface of the guide roller 13 provided on the first alignment rotary shaft 9 and the second alignment rotary shaft 10 with the glass substrate G is on the inner side in the axial direction of the alignment rotary shafts 9 and 10. Tapered surfaces 13a and 14a are formed with gradually decreasing outer diameters. The minimum diameters of the tapered surfaces 13 a and 14 a are equal to the outer diameter of the transport roller 8. The guide roller 14 of the third alignment rotating shaft 11 is not provided with such tapered surfaces 13a, 14a.
　進行方向に向かって、１番目のアライメント用回転軸９から３番目のアライメント用回転軸１１に向かって対向するガイドローラー１３，１４，１５の最大径部分間の間隔は、徐々に狭くなっている。つまり、１番目のアライメント用回転軸９の対向するガイドローラー１３の最大径部分間の間隔Ｌ１、２番目のアライメント用回転軸１０の対向するガイドローラー１４の最大径部分間の間隔Ｌ２、３番目のアライメント用回転軸１１の対向するガイドローラー１５の軸方向内側間の間隔Ｌ３の順に徐々に小さくなっている（Ｌ１＞Ｌ２＞Ｌ３）。各ガイドローラー１３，１４，１５で順番に押し戻されたガラス基板Ｇの角部が製造ラインＬの前方（下流）のガイドローラー１４，１５に乗り上がってしまわないように、１番目の対向するガイドローラー１３の内側側面間の間隔と２番目の対向するガイドローラー１４の最大径部分間の間隔とがほぼ等しく、２番目のガイドローラー１４の内側側面の間隔と３番目の対向するガイドローラー１５の最大径部分間の間隔とがほぼ等しくなっている。そして、最も幅の狭い３番目のガイドローラー１５の間隔Ｌ３でも、少なくともガラス基板Ｇの幅Ｗよりも大きくなっている（Ｌ３＞Ｗ）。 The distance between the maximum diameter portions of the guide rollers 13, 14, 15 facing the direction from the first alignment rotary shaft 9 to the third alignment rotary shaft 11 gradually decreases in the traveling direction. . That is, the distance L2 between the maximum diameter portions of the opposing guide roller 13 of the first alignment rotating shaft 9, the interval L2 between the maximum diameter portions of the opposing guide roller 14 of the second alignment rotating shaft 10, and the third. Are gradually reduced in the order of the distance L3 between the axially inner sides of the guide rollers 15 facing the alignment rotating shaft 11 (L1> L2> L3). The first opposing guide so that the corners of the glass substrate G pushed back in turn by the guide rollers 13, 14, 15 do not get on the front (downstream) guide rollers 14, 15 of the production line L. The interval between the inner side surfaces of the roller 13 and the interval between the maximum diameter portions of the second opposing guide roller 14 are substantially equal, and the interval between the inner side surfaces of the second guide roller 14 and the third opposing guide roller 15 The distance between the largest diameter portions is almost equal. Even at the interval L3 of the third guide roller 15 having the narrowest width, at least the width W of the glass substrate G is larger (L3> W).
　　－作用－
　次に、本実施形態にかかる平板搬送装置１の作用について説明する。 -Action-
Next, the operation of the flat plate conveyance device 1 according to the present embodiment will be described.
　まず、定型にカットされて加工されたガラス基板Ｇを製造ラインＬ上に載せると、ガラス基板Ｇは、搬送用回転軸７上の搬送用ローラー８によって前方へ搬送される。製造ラインＬが長距離であると、搬送中にガラス基板Ｇが進行方向に対して左右にずれてくる場合がある。 First, when a glass substrate G that has been cut into a standard shape and processed is placed on the production line L, the glass substrate G is transported forward by the transport roller 8 on the transport rotating shaft 7. If the production line L is a long distance, the glass substrate G may be shifted left and right with respect to the traveling direction during conveyance.
　例えば、図１及び図２に示すように、第１ガラス基板振り分け装置５にて複数のガラス基板Ｇがカセット３に積み込まれ、残りのガラス基板Ｇは、さらに前方に搬送される。 For example, as shown in FIGS. 1 and 2, a plurality of glass substrates G are stacked in the cassette 3 by the first glass substrate sorting apparatus 5, and the remaining glass substrates G are further conveyed forward.
　第１ガラス基板振り分け装置５を通過したガラス基板Ｇが進行方向に対して左右いずれかの方向にずれていると、３本のアライメント用回転軸９，１０，１１の左右外側に設けたガイドローラー１３，１４，１５に当接する。 When the glass substrate G that has passed through the first glass substrate distribution device 5 is displaced in either the left or right direction with respect to the traveling direction, guide rollers provided on the left and right outer sides of the three alignment rotation shafts 9, 10, 11. 13, 14, 15 abuts.
　例えば、ガラス基板Ｇが左右に大きくずれていると、最初に一番手前のアライメント用回転軸９のガイドローラー１３に当接する。ガイドローラー１３のテーパー面１３ａは、徐々に左右内側に向かって外径が小さくなっているので、ガラス基板Ｇの左右側面が滑らかに当接し、左右内側へ押し戻しやすい。 For example, when the glass substrate G is largely displaced from side to side, the glass substrate G first comes into contact with the guide roller 13 of the front rotation shaft 9 for alignment. Since the taper surface 13a of the guide roller 13 gradually decreases in outer diameter toward the left and right inner sides, the left and right side surfaces of the glass substrate G come into contact smoothly and are easily pushed back to the left and right inner sides.
　一番目のガイドローラー１３で押し戻されたガラス基板Ｇは、１番目のガイドローラー１３よりも左右内側に配置された２番目のガイドローラー１３の当接面に当接してさらに左右内側へ押し戻される。このときも、ガイドローラー１４のテーパー面１４ａは、徐々に左右内側に向かって外径が小さくなっているので、ガラス基板Ｇの左右側面が滑らかに当接し、左右内側へ押し戻しやすい。 The glass substrate G pushed back by the first guide roller 13 is brought into contact with the contact surface of the second guide roller 13 disposed on the left and right inner sides of the first guide roller 13 and further pushed back to the left and right inside. Also at this time, since the outer diameter of the tapered surface 14a of the guide roller 14 gradually decreases toward the left and right inner sides, the left and right side surfaces of the glass substrate G abut smoothly and are easily pushed back to the left and right inner sides.
　次いで、ガラス基板Ｇは、２番目のガイドローラー１４よりも左右内側にあるガイドローラー１５で左右にぶれないように規制されながら、第２ガラス振り分け装置６に進入し、カセット３に積み込まれる。 Next, the glass substrate G enters the second glass sorting device 6 and is loaded on the cassette 3 while being regulated so as not to be moved left and right by the guide rollers 15 located on the left and right inner sides of the second guide roller 14.
　第２ガラス振り分け装置６で積み込まれなかったガラス基板Ｇは、さらに前方のポジションに搬送される。 The glass substrate G that has not been loaded by the second glass sorting device 6 is further transported to the front position.
　一方、ガラス基板Ｇの左右のブレが小さいときには、１番目のガイドローラー１３には当接せず、２番目のガイドローラー１４にまず当接し、同様にブレが修正される。 On the other hand, when the left and right blur of the glass substrate G is small, the glass substrate G is not brought into contact with the first guide roller 13, but is first brought into contact with the second guide roller 14, and the shake is corrected in the same manner.
　このように、ガイドローラー１３，１４，１５の幅が徐々に狭くなっているので、ガラス基板Ｇが確実に進行方向に真っ直ぐに進むように修正される。そして、ガラス基板Ｇを進行方向に対して真っ直ぐに押し戻すガイドローラー１３，１４，１５を、すべての回転軸７，９，１０，１１にではなく、各ポジションの手前にのみ設けることで、ガイドローラー１３，１４，１５がガラス基板Ｇに当接する回数は最小限となる。 Thus, since the width of the guide rollers 13, 14, and 15 is gradually narrowed, the glass substrate G is corrected so as to surely advance straight in the traveling direction. The guide rollers 13, 14, 15 that push the glass substrate G straight back with respect to the traveling direction are not provided on all the rotating shafts 7, 9, 10, 11, but only in front of each position. The number of times 13, 14, and 15 contact the glass substrate G is minimized.
　このため、大型化が進んでいる液晶表示パネル用のガラス基板Ｇを、傷を付けることなく、効率よく製造ラインＬ上の各ポジションに搬送することができる。 For this reason, the glass substrate G for liquid crystal display panels whose size is increasing can be efficiently conveyed to each position on the production line L without being damaged.
　したがって、本実施形態にかかる平板搬送装置１によると、製造ラインＬの各ポジションの手前におけるアライメント用回転軸９，１０，１１の軸方向外側に、互いの間隔がガラス基板Ｇの進行方向に向かって徐々に狭くなるガイドローラー１３，１４，１５を設けたことにより、簡単な構成で、長距離であっても、できるだけガラス基板Ｇの側面や表面に接触することなく、ガラス基板Ｇの直進性を保つことができる。 Therefore, according to the flat plate transport device 1 according to the present embodiment, the distance between the rotation axes 9, 10, and 11 before the positions on the production line L is shifted outward in the axial direction of the glass substrate G. By providing the guide rollers 13, 14, and 15 that gradually become narrower, the straightness of the glass substrate G is as simple as possible, even with a long distance, without touching the side surface or the surface of the glass substrate G as much as possible. Can keep.
　（その他の実施形態）
　本発明は、上記実施形態について、以下のような構成としてもよい。 (Other embodiments)
The present invention may be configured as follows with respect to the above embodiment.
　すなわち、上記実施形態では、平板として表示パネルのガラス基板Ｇの例を示したが、これに限定されず、板状の被搬送物であれば何でもよい。 That is, in the said embodiment, although the example of the glass substrate G of a display panel was shown as a flat plate, it is not limited to this, What is necessary is just a plate-shaped to-be-conveyed object.
　上記実施形態では、ポジションとしてのガラス基板振り分け装置６の手前にガイドローラー１３，１４，１５を配置したが、どのポジションの手前に設けてもよく、必ずしもすべてのポジションの手前に設ける必要はない。手前側のガイドローラー１３，１４だけでなく、奥側のガイドローラー１５もすべてテーパーのあるガイドローラーとしてもよいし、すべてテーパーのないガイドローラーとしてもよく、その割合は特に限定されない。アライメント用回転軸９，１０，１１の本数は、３本としたが、何本でもよく、２本や、４本以上でもよい。 In the above embodiment, the guide rollers 13, 14, and 15 are arranged in front of the glass substrate sorting apparatus 6 as a position, but they may be provided in front of any position, and are not necessarily provided in front of all positions. Not only the guide rollers 13 and 14 on the near side but also the guide roller 15 on the back side may be all guide rollers with a taper, or all may be guide rollers without a taper, and the ratio is not particularly limited. Although the number of the alignment rotating shafts 9, 10, and 11 is three, it may be any number, two, or four or more.
　上記実施形態では、ガイドローラー１３，１４，１５の材質は特に限定していないが、樹脂成形品や金属成形品でもよく、ガラス基板Ｇとの当接面がゴム等で覆われていてもよい。 In the above embodiment, the material of the guide rollers 13, 14, 15 is not particularly limited, but may be a resin molded product or a metal molded product, and the contact surface with the glass substrate G may be covered with rubber or the like. .
　なお、以上の実施形態は、本質的に好ましい例示であって、本発明、その適用物や用途の範囲を制限することを意図するものではない。 In addition, the above embodiment is an essentially preferable example, and is not intended to limit the scope of the present invention, its application, and use.
　以上説明したように、本発明は、ガラス基板だけでなく、平らな板状体を搬送する平板搬送装置について有用である。 As described above, the present invention is useful not only for a glass substrate but also for a flat plate conveying apparatus that conveys a flat plate-like body.
　　Ｇ　　　ガラス基板（平板）
　　Ｌ　　　製造ライン
　　１　　　平板搬送装置
　　５　　　ガラス基板振り分け装置（ポジション）
　　６　　　ガラス基板振り分け装置（ポジション）
　　７　　　搬送用回転軸
　　８　　　搬送用ローラー
　　９　　　アライメント用回転軸
　１０　　　アライメント用回転軸
　１１　　　アライメント用回転軸
　１３　　　ガイドローラー
　１３ａ　　テーパー面
　１４　　　ガイドローラー
　１４ａ　　テーパー面
　１５　　　ガイドローラー G Glass substrate (flat plate)
L Production line 1 Flat plate conveyor 5 Glass substrate sorter (position)
6 Glass substrate sorter (position)
7 Rotating shaft for conveyance 8 Rolling roller 9 Rotating shaft for alignment 10 Rotating shaft for alignment 11 Rotating shaft for alignment 13 Guide roller 13a Tapered surface 14 Guide roller 14a Tapered surface 15 Guide roller

Claims (3)

  1. 　製造ライン上の各ポジションに平板を搬送する平板搬送装置において、
    　上記平板の進行方向に所定の間隔をあけて配置された複数の回転軸と、
    　上記各回転軸に回転可能に配置され、上記平板の裏面側に当接する複数の搬送用ローラーとを備え、
    　上記各ポジションの手前における上記複数の回転軸には、該回転軸の軸方向外側に上記搬送用ローラーよりも外径の大きいガイドローラーがそれぞれ設けられ、各回転軸の対向するガイドローラーの最大径部分間の間隔は、上記平板の幅よりも大きく、進行方向に向かって徐々に狭くなっている
    ことを特徴とする平板搬送装置。     In a flat plate transport device that transports a flat plate to each position on the production line,
    A plurality of rotating shafts arranged at predetermined intervals in the traveling direction of the flat plate;
    A plurality of transport rollers that are rotatably arranged on each of the rotating shafts and abut on the back side of the flat plate;
    The plurality of rotating shafts in front of each position are each provided with a guide roller having an outer diameter larger than that of the conveying roller on the outer side in the axial direction of the rotating shaft, and the maximum diameter of the guide rollers facing each rotating shaft. The flat plate conveying apparatus characterized in that the interval between the portions is larger than the width of the flat plate and gradually narrows in the traveling direction.
  2. 　請求項１に記載の平板搬送装置において、
    　上記各ポジションの手前の上記複数の回転軸のうち、少なくとも手前側に設けた回転軸に設けた上記ガイドローラーにおける上記平板との当接面は、上記回転軸の軸方向内側に向かって外径が徐々に小さくなっている
    ことを特徴とする平板搬送装置。     In the flat plate conveying apparatus according to claim 1,
    Of the plurality of rotating shafts before each position, at least a contact surface of the guide roller provided on the rotating shaft provided on the near side with the flat plate has an outer diameter toward the inner side in the axial direction of the rotating shaft. Is a flat plate conveying device characterized by gradually decreasing.
  3. 　請求項１又は２に記載の平板搬送装置において、
    　上記平板は、液晶表示パネルに使用するガラス基板である
    ことを特徴とする平板搬送装置。     In the flat plate conveying apparatus according to claim 1 or 2,
    The flat plate conveying apparatus according to claim 1, wherein the flat plate is a glass substrate used for a liquid crystal display panel.
PCT/JP2010/005938 2009-10-07 2010-10-04 Flat plate-conveying device WO2011043052A1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014082304A (en) * 2012-10-16 2014-05-08 Sumitomo Chemical Co Ltd Conveying device, production system, and conveying method
CN104619620A (en) * 2012-10-12 2015-05-13 旭硝子株式会社 Glass plate conveyance device and glass plate conveyance method

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH061326U (en) * 1992-06-10 1994-01-11 村田機械株式会社 Roller conveyor
JP2008063144A (en) * 2006-08-10 2008-03-21 Toray Ind Inc Substrate conveying device and method of determining arrangement of rollers of substrate conveying device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH061326U (en) * 1992-06-10 1994-01-11 村田機械株式会社 Roller conveyor
JP2008063144A (en) * 2006-08-10 2008-03-21 Toray Ind Inc Substrate conveying device and method of determining arrangement of rollers of substrate conveying device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104619620A (en) * 2012-10-12 2015-05-13 旭硝子株式会社 Glass plate conveyance device and glass plate conveyance method
JP2014082304A (en) * 2012-10-16 2014-05-08 Sumitomo Chemical Co Ltd Conveying device, production system, and conveying method

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