JP6014443B2 - Plate edge grinding machine - Google Patents

Plate edge grinding machine Download PDF

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Publication number
JP6014443B2
JP6014443B2 JP2012214512A JP2012214512A JP6014443B2 JP 6014443 B2 JP6014443 B2 JP 6014443B2 JP 2012214512 A JP2012214512 A JP 2012214512A JP 2012214512 A JP2012214512 A JP 2012214512A JP 6014443 B2 JP6014443 B2 JP 6014443B2
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Prior art keywords
grinding
slit
grindstone
edge
cover
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JP2014069238A (en
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水島　裕
裕 水島
剛志 納谷
剛志 納谷
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Nakamura Tome Precision Industry Co Ltd
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Nakamura Tome Precision Industry Co Ltd
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Priority to JP2012214512A priority Critical patent/JP6014443B2/en
Priority to CN201320549496.9U priority patent/CN203426823U/en
Priority to TW102217263U priority patent/TWM478567U/en
Priority to KR2020130007967U priority patent/KR200486165Y1/en
Publication of JP2014069238A publication Critical patent/JP2014069238A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
    • B24B9/02—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground
    • B24B9/06—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain
    • B24B9/08—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of glass
    • B24B9/10—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of glass of plate glass
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B5/00—Cleaning by methods involving the use of air flow or gas flow
    • B08B5/02—Cleaning by the force of jets, e.g. blowing-out cavities
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B27/00—Other grinding machines or devices
    • B24B27/0023—Other grinding machines or devices grinding machines with a plurality of working posts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B27/00—Other grinding machines or devices
    • B24B27/0076—Other grinding machines or devices grinding machines comprising two or more grinding tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B57/00—Devices for feeding, applying, grading or recovering grinding, polishing or lapping agents
    • B24B57/02—Devices for feeding, applying, grading or recovering grinding, polishing or lapping agents for feeding of fluid, sprayed, pulverised, or liquefied grinding, polishing or lapping agents

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Grinding-Machine Dressing And Accessory Apparatuses (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)

Description

この発明は、板材の辺縁を研削加工する装置、特に加工点に研削液を供給しながらディスプレイパネルや太陽電池に用いるガラス板の辺縁を研削する装置に関するもので、加工される板材表面への研削液の付着を防止した上記装置に関するものである。   TECHNICAL FIELD The present invention relates to an apparatus for grinding a peripheral edge of a plate material, and more particularly to an apparatus for grinding a peripheral edge of a glass plate used for a display panel or a solar cell while supplying a grinding liquid to a processing point. It is related with the said apparatus which prevented adhesion of the grinding fluid.

通常、ガラス板の研削には研削液として純水を用いる。加工されるガラス板が有機ＥＬや一部の太陽光発電パネルに用いるガラス基板であるときは、その辺縁の研削加工の際に、基板表面への水の付着を防止する必要がある。   Usually, pure water is used as a grinding liquid for grinding a glass plate. When the glass plate to be processed is a glass substrate used for organic EL or some photovoltaic power generation panels, it is necessary to prevent water from adhering to the substrate surface during grinding of the edge.

加工されるガラス板表面への研削液（クーラント水）の付着を防止した研磨装置として、特許文献１にはボックス内でワーク（ガラス基板）の辺を研磨すると共に、クーラント水のボックス外への飛散を抑止した研磨装置が提案されている。この研磨装置は、ワークの研磨辺が通過してゆく通路に添って周囲の一面に当該研磨辺が嵌り込む開口を有する第１ボックスと第２ボックスとを直列状に並べて設け、第１ボックス内には、ワークの辺縁を研磨する回転砥石と、研磨部分にクーラント水を噴射するノズルと、噴射クーラント水を吸引して排出する吸引手段とを設け、第２ボックス内にワークに付着したクーラント水の水切りエアナイフを設け、上記ワーク或いは上記第１ボックス及び第２ボックスのいずれか片方を走行させる走行手段を設けるというものである。   As a polishing apparatus that prevents adhesion of grinding liquid (coolant water) to the surface of the glass plate to be processed, Patent Document 1 discloses that the side of the workpiece (glass substrate) is polished inside the box and the coolant water is discharged to the outside of the box. A polishing apparatus that suppresses scattering has been proposed. In this polishing apparatus, a first box and a second box having an opening in which the polishing side is fitted on one surface of the periphery along a path through which the polishing side of the workpiece passes are arranged in series, and the inside of the first box Includes a rotating grindstone for polishing the edge of the workpiece, a nozzle for injecting coolant water to the polishing portion, and a suction means for sucking and discharging the injected coolant water, and the coolant adhered to the workpiece in the second box A water draining air knife is provided, and traveling means for traveling either the work or one of the first box and the second box is provided.

また特許文献２には、回転砥石によるワークの加工点（研削が行われる箇所）への水の供給手段として、砥石の目詰まりを防止すると共に少ない量の研削液で加工を可能にすることを課題として、研削液を回転砥石とワークとが接触する加工点より砥石回転方向上流側で砥石表面に付与し、付与された研削液が砥石表面に付着した（巻き付けた）状態で加工点に運ばれるようにした研削加工装置が提案されている。   Patent Document 2 discloses that as a means for supplying water to a workpiece processing point (a place where grinding is performed) with a rotating grindstone, clogging of the grindstone is prevented and processing can be performed with a small amount of grinding fluid. The problem is that the grinding fluid is applied to the grinding wheel surface upstream of the grinding wheel rotation direction from the processing point where the rotating wheel and workpiece contact, and the applied grinding fluid adheres to the grinding wheel surface and is carried to the machining point. There has been proposed a grinding apparatus adapted to be used.

特開２００７−３００５１号公報JP 2007-30051 A 特開２００６−２１２８４号公報JP 2006-21284 A

特許文献１で提案されている手段によれば、研削液がボックス外へと飛散するのを防止でき、ガラス基板表面への水の付着を抑止できる。しかし、ある種のワークの加工では、辺縁を研削加工する際に許容される水の付着が縁から４ｍｍ以内に制限されており、このようなワークを加工する場合、特許文献１で提案されている手段では、例えば第１ボックスから第２ボックスにガラス基板が移動する間に、第１ボックス内でガラス基板の辺縁に付着した研削液が基板表面へと流下ないし拡散する危険がある等、ワーク表面への水の付着を完全に防止するには不十分である。   According to the means proposed in Patent Document 1, it is possible to prevent the grinding fluid from splashing out of the box and to suppress the adhesion of water to the glass substrate surface. However, in the processing of a certain kind of work, the adhesion of water allowed when grinding the edge is limited to within 4 mm from the edge, and this kind of work is proposed in Patent Document 1. For example, while the glass substrate moves from the first box to the second box, there is a risk that the grinding liquid adhering to the edge of the glass substrate in the first box flows down or diffuses to the substrate surface. This is insufficient to completely prevent water from adhering to the workpiece surface.

そこでこの発明は、表面への研削液の付着を嫌う板材の辺縁の研削加工装置において、板材表面への研削液の付着をより完全に防止できる技術手段を得ることを課題としている。   In view of this, an object of the present invention is to obtain technical means that can more completely prevent the adhesion of the grinding liquid to the surface of the plate material in the grinding apparatus for the edge of the plate material that does not like the adhesion of the grinding liquid to the surface.

この発明の板材の辺縁の研削加工装置は、加工される板材１を保持するテーブル２と、このテーブルに対して相対移動して当該板材の辺縁を加工する回転砥石３、３ａと、この回転砥石を覆うカバー４、４ａと、加工される板材１の辺縁１１を砥石カバー４、４ａ内に導くために当該カバーに設けた水平方向のスリット４２と、砥石カバー４、４ａ内に導入された板材の辺縁１１ないし砥石３、３ａの周面に研削液を供給する研削液供給装置４５と、砥石カバー４、４ａ内の空気を吸引することでスリット４２から砥石カバー４、４ａ内に外気を吸引する吸気装置４６、４７とを備えている板材の辺縁１１の研削加工装置において、回転砥石３、３ａを収容している砥石カバー４、４ａの外側からスリット４２を通して当該カバー内へ膜状の空気流を吹き込む空気ノズル５を備えていることを特徴とする板材の辺縁の研削加工装置である。   An edge grinding apparatus for a plate material according to the present invention includes a table 2 that holds a processed plate material 1, a rotating grindstone 3, 3a that moves relative to the table to process the edge of the plate material, Covers 4 and 4a for covering the rotating grindstone, horizontal slits 42 provided in the cover for guiding the edge 11 of the plate 1 to be processed into the grindstone covers 4 and 4a, and introduction into the grindstone covers 4 and 4a The grinding liquid supply device 45 for supplying the grinding liquid to the peripheral edge 11 of the plate material or the peripheral surfaces of the grinding stones 3 and 3a and the air in the grinding wheel covers 4 and 4a are sucked from the slits 42 to the inside of the grinding wheel covers 4 and 4a. In the grinding device for the edge 11 of the plate material provided with suction devices 46 and 47 for sucking outside air into the inside of the cover through the slit 42 from the outside of the grindstone covers 4 and 4a housing the rotating grindstones 3 and 3a. Membranous That it comprises an air nozzle 5 for blowing an air flow which is marginal grinding apparatus of the plate material according to claim.

特許文献２記載のように、研削液を回転砥石３、３ａの周面に巻き付けて供給する構造とすることで、加工点ｐに研削液を効率よく供給することができる。また、加工点ｐに近い位置に設けた供給装置から研削液を供給することも勿論可能で、この場合、砥石カバー４、４ａ内を面を水平にして通過する板材の辺縁部上面にのみ研削液を供給する構造とすることができる。   As described in Patent Document 2, the grinding liquid can be efficiently supplied to the processing point p by using a structure in which the grinding liquid is wound around and supplied to the peripheral surfaces of the rotating grindstones 3 and 3a. In addition, it is of course possible to supply the grinding fluid from a supply device provided at a position close to the processing point p. In this case, only the upper surface of the edge portion of the plate material passing through the grindstone covers 4 and 4a with the surface horizontal. A structure for supplying a grinding fluid can be employed.

例えば、研削液を空気ノズル５から空気が吹き込まれているスリット４２に近接して下辺と当該スリットに導入された板材１の上面との間に間隙を残して垂設されたガイド面４３に添って流下して板材１の辺縁部に供給することにより、スリット４２の外に研削液を飛散させることなく、必要な量の研削液を供給することが可能である。   For example, the grinding liquid is attached to the guide surface 43 that is suspended from the lower side and the upper surface of the plate 1 introduced into the slit in the vicinity of the slit 42 in which air is blown from the air nozzle 5. It is possible to supply a necessary amount of grinding liquid without scattering the grinding liquid outside the slit 42 by flowing down and supplying it to the edge of the plate 1.

テーブル２に、加工される板材１の面を水平にして保持し、空気ノズル５を、当該ノズルからの膜状の空気流がスリット４２に導入された板材１の辺縁１１部分の上面に砥石カバー４、４ａ内に向けて斜めに衝突するように設けることにより、板材１の辺縁部上面に供給した研削液を砥石カバー４、４ａ内へと押し流して当該辺縁の下面側へも供給することができる。   The surface of the plate 1 to be processed is held horizontally on the table 2, and the air nozzle 5 is mounted on the upper surface of the edge 11 portion of the plate 1 where the film-like air flow from the nozzle is introduced into the slit 42. By providing the cover 4 and 4a so as to collide obliquely, the grinding liquid supplied to the upper surface of the edge portion of the plate 1 is pushed into the grinding wheel cover 4 and 4a and supplied to the lower surface side of the edge. can do.

また、スリット４２と平行な方向の空気ノズル５の寸法ｃ、すなわち空気ノズル５から噴射される膜状の空気流の幅寸法を砥石３ａの同方向の寸法ｅや研削液の供給領域の寸法ａより大きくすることにより、板材１の上面に付着した研削液が加工点を通過した後で拡散したり流下したりするのを防止でき、更に砥石カバー４、４ａ内の空気の乱れによって砥石カバー４、４ａ内の液滴がスリットの外へと飛散するのをより確実に防止することができる。   Further, the dimension c of the air nozzle 5 in the direction parallel to the slit 42, that is, the width dimension of the film-like air flow ejected from the air nozzle 5, the dimension e in the same direction of the grindstone 3a and the dimension a of the grinding fluid supply area By making it larger, it is possible to prevent the grinding liquid adhering to the upper surface of the plate material 1 from diffusing or flowing down after passing through the machining point, and further, the grinding wheel cover 4 due to the turbulence of the air in the grinding wheel cover 4, 4a. It can prevent more reliably that the droplet in 4a splashes out of a slit.

板材１の下面は、テーブル２で保持されている。このテーブル２の周縁２１が板材の辺縁１１の直近の位置となるようにして、加工される辺縁１１がスリット４２を通過するときにその辺縁に添う周縁２１もスリット４２に挿入されるようにすれば、板材１の下面側のスリット４２の間隙を狭くすることができ、必要があればスリット４２の開口下辺とテーブル２の周縁２１の下面との間にシール材を設けることも可能であり、スリット４２からの研削液の飛散を最小限にすることができる。   The lower surface of the plate material 1 is held by a table 2. The peripheral edge 21 of the table 2 is inserted into the slit 42 so that the processed peripheral edge 11 passes through the slit 42 so that the peripheral edge 21 of the table 2 is positioned in the immediate vicinity of the peripheral edge 11 of the plate. By doing so, the gap between the slits 42 on the lower surface side of the plate member 1 can be narrowed, and if necessary, a sealing material can be provided between the lower opening side of the slit 42 and the lower surface of the peripheral edge 21 of the table 2. Thus, the scattering of the grinding fluid from the slit 42 can be minimized.

この発明によれば、スリット４２から砥石カバー４、４ａ内へと流入する空気流に加えて、研削中のガラス板１の辺縁部の表面とスリット４２との間に膜状の空気流を噴射することにより、ガラス板１の表面に付着した研削液が拡散したり流下したり砥石カバー４、４ａの外へ飛散したりする前に砥石カバー４、４ａ内へと吹き飛ばして除去できるので、加工されるガラス板表面への研削液の付着をより完全に防止することができるという効果がある。   According to the present invention, in addition to the air flow flowing from the slit 42 into the grindstone covers 4, 4 a, a film-like air flow is generated between the surface of the edge portion of the glass plate 1 being ground and the slit 42. By spraying, before the grinding liquid adhering to the surface of the glass plate 1 diffuses or flows down or splashes out of the grindstone covers 4, 4a, it can be blown off into the grindstone covers 4, 4a and removed. There is an effect that the adhesion of the grinding liquid to the surface of the glass plate to be processed can be more completely prevented.

この発明の研削加工装置の第１実施例を示す斜視図The perspective view which shows 1st Example of the grinding-work apparatus of this invention 図１の研削加工装置の要部の平面図Plan view of the main part of the grinding apparatus of FIG. 同正面図Front view 同拡大断面正面図Same enlarged cross-sectional front view この発明の研削加工装置の第２実施例を示す斜視図The perspective view which shows 2nd Example of the grinding-work apparatus of this invention 図５の研削加工装置の要部の平面図FIG. 5 is a plan view of the main part of the grinding apparatus of FIG. 同拡大断面正面図Same enlarged cross-sectional front view 図５の研削加工装置の研削液の供給構造を示す斜視図The perspective view which shows the supply structure of the grinding fluid of the grinding processing apparatus of FIG.

以下、添付図面を参照して、この発明の実施形態を説明する。図１は、ガラス板の辺縁研削装置の第１例を示した図である。加工対象となる矩形のガラス板１は、吸着テーブル２の上面に面を水平にして保持されている。吸着テーブル２の周縁２１は、ガラス板１の裏面に密着しており、吸着テーブル２は、その周縁２１より内側の部分に供給されている負圧力によってガラス板１を吸着している。ガラス板１は、加工される辺縁１１を吸着テーブルの当該辺縁に添う周縁２１から僅かに（数ｍｍ）張り出した状態で保持されており、この張り出した部分より内側の部分は、吸着テーブルの周縁２１によって密閉されているので、切粉や研削液が付着することはない。   Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a view showing a first example of a glass plate edge grinding apparatus. A rectangular glass plate 1 to be processed is held on the upper surface of the suction table 2 with its surface horizontal. A peripheral edge 21 of the suction table 2 is in close contact with the back surface of the glass plate 1, and the suction table 2 sucks the glass plate 1 by a negative pressure supplied to a portion inside the peripheral edge 21. The glass plate 1 is held in a state where the edge 11 to be processed slightly protrudes (several millimeters) from the peripheral edge 21 that follows the edge of the suction table. Since it is sealed by the peripheral edge 21, chips and grinding liquid do not adhere.

図１に示した回転砥石３は、いわゆる総形砥石と呼ばれる砥石で、外周に加工する辺縁１１の断面形状に対応する断面形状の周溝３１を備えており、砥石モータ３２により鉛直軸周りに回転駆動される。回転砥石３は、吸着テーブル２を挟んで両側に対称に配置されており、これらの回転砥石３に対して吸着テーブル２を図のＹ方向に相対移動させることにより、ガラス板１の対向両辺１１、１１が同時に研削加工される。回転砥石３には、その周面に添って研削液（水）を巻き付けて供給する巻き付け供給装置４８（図２参照）を備えている。図１には、この発明の研削加工装置における砥石カバー４が想像線で示されている。   The rotating grindstone 3 shown in FIG. 1 is a grindstone called a so-called general grindstone, and includes a circumferential groove 31 having a cross-sectional shape corresponding to the cross-sectional shape of the edge 11 to be processed on the outer periphery. Is driven to rotate. The rotating grindstone 3 is arranged symmetrically on both sides with the suction table 2 in between, and by moving the suction table 2 relative to these rotating grindstones 3 in the Y direction in the figure, the opposing sides 11 of the glass plate 1 are arranged. 11 are simultaneously ground. The rotating grindstone 3 is provided with a winding supply device 48 (see FIG. 2) for winding and supplying a grinding liquid (water) along the peripheral surface thereof. In FIG. 1, the grindstone cover 4 in the grinding apparatus of the present invention is indicated by an imaginary line.

図２ないし４は、この発明の要部を示す平面図、正面図及び拡大断面図である。図２ないし４は、図１の右側の砥石についての構造を示した図である。砥石カバー４は、吸着テーブル２側の端面４１が加工されるガラス板の辺縁１１と平行な鉛直面となっており、この端面にガラス板１の加工される辺縁１１及び当該辺縁に近接する吸着テーブル２の辺縁２１部分を導入する開口（スリット）４２が設けられている。図のＲ方向に回転する回転砥石３は、このスリットの長手中央部に設定した加工点ｐにおいて、このスリットに導入されてＹ方向へと相対移動するガラス板の辺縁１１に接触して研削加工する。   2 to 4 are a plan view, a front view, and an enlarged sectional view showing a main part of the present invention. 2 to 4 are views showing the structure of the grinding wheel on the right side of FIG. The grindstone cover 4 is a vertical surface parallel to the edge 11 of the glass plate on which the end surface 41 on the suction table 2 side is processed, and the edge 11 to be processed of the glass plate 1 and the edge on this end surface. An opening (slit) 42 is provided for introducing the edge 21 portion of the adjacent suction table 2. The rotating grindstone 3 that rotates in the R direction in the figure is in contact with the edge 11 of the glass plate that is introduced into the slit and moves relatively in the Y direction at the processing point p set in the longitudinal center of the slit. Process.

加工点ｐへの研削液の供給は、巻き付け供給装置４８から行われている。更に図の実施例では、スリット４２より上方の砥石カバーの端面４１の内側に設けたガイド面４３から研削液を膜状にして供給している。ガイド面４３は、その下辺がスリット４２に導入されたガラス板の辺縁１１の上面との間に間隙を残した状態で垂設されている。そして、このガイド面４３の上縁部分に研削液を供給する水パイプ４４が設けられている。水パイプ４４は、スリット４２と平行に設けられており、ガイド面４３の上縁部に向いた側面に多数のノズル孔４５を備えている。   The grinding liquid is supplied to the processing point p from the winding supply device 48. Further, in the embodiment shown in the figure, the grinding liquid is supplied in the form of a film from the guide surface 43 provided inside the end surface 41 of the grindstone cover above the slit 42. The guide surface 43 is suspended in a state where a gap is left between the lower surface of the guide surface 43 and the upper surface of the edge 11 of the glass plate introduced into the slit 42. A water pipe 44 for supplying a grinding liquid is provided on the upper edge portion of the guide surface 43. The water pipe 44 is provided in parallel with the slit 42, and includes a large number of nozzle holes 45 on the side surface facing the upper edge of the guide surface 43.

一方、砥石カバー４の下面と側面とに吸気パイプ４６ないし吸気ダクト４７が接続され、これらの吸気パイプないし吸気ダクトは、図示しないミストセパレータを経由して図示しないブロワの吸気口に接続されている。砥石カバー４は、スリット４２による開口部分以外は密閉されている。従って、前記ブロワを運転することにより、スリット４２を通して外気が砥石カバー４内へと吸引される。   On the other hand, an intake pipe 46 or an intake duct 47 is connected to the lower surface and the side surface of the grindstone cover 4, and these intake pipe or intake duct is connected to an intake port of a blower (not shown) via a mist separator (not shown). . The grindstone cover 4 is hermetically sealed except for the opening portion formed by the slits 42. Accordingly, by operating the blower, outside air is sucked into the grindstone cover 4 through the slit 42.

更に、砥石カバーの端面４１の外側のスリット４２より上方の部分に、スリット４２に向けて空気を膜状に噴射する空気ノズル５が設けられている。ガイド面４３のスリット長手方向、すなわち加工されるガラス板の辺縁１１と平行な方向の寸法ａは、スリット４２の同方向の寸法ｂより短く、かつ空気ノズル５の同方向の寸法ｃより短い。すなわち、空気ノズル５から噴射される膜状の空気は、ガイド面４３の両側の領域ｄの部分においてもガラス板１の上面に沿って砥石カバー４内へと流入する。   Further, an air nozzle 5 for injecting air in a film shape toward the slit 42 is provided in a portion above the slit 42 outside the end face 41 of the grindstone cover. The slit longitudinal direction of the guide surface 43, that is, the dimension a in the direction parallel to the edge 11 of the glass plate to be processed is shorter than the dimension b of the slit 42 in the same direction and shorter than the dimension c of the air nozzle 5 in the same direction. . That is, the film-like air ejected from the air nozzle 5 flows into the grindstone cover 4 along the upper surface of the glass plate 1 also in the regions d on both sides of the guide surface 43.

ガラス板１を加工するときは、巻き付け供給装置４８及び水パイプ４４に研削液を供給した状態で前記ブロワを運転すると共に、空気ノズル５から膜状の空気流を噴射する。ガラス板の辺縁１１は、当該辺縁及び吸着テーブルのこの辺縁に添う周縁２１が、スリット４２から砥石カバー４内に導入された状態で、回転砥石３により研削加工される。研削液は、巻き付け供給装置４８と水パイプ４４から供給される。スリット４２を通って外気が砥石カバー４内に流入しており、水パイプ４４から流出した研削液は、ガイド面４３の内側面に沿って膜状に流下し、その下縁からスリット４２を通過する空気流によって砥石カバー内へと吹き流されながら、砥石カバー内に導入されているガラス板１の辺縁部の上面に供給される。   When processing the glass plate 1, the blower is operated in a state where the grinding liquid is supplied to the winding supply device 48 and the water pipe 44, and a film-like air flow is injected from the air nozzle 5. The edge 11 of the glass plate is ground by the rotating grindstone 3 in a state where the edge 21 and the peripheral edge 21 that follows the edge of the suction table are introduced into the grindstone cover 4 from the slit 42. The grinding liquid is supplied from the winding supply device 48 and the water pipe 44. Outside air has flowed into the grindstone cover 4 through the slit 42, and the grinding fluid that has flowed out of the water pipe 44 flows down in the form of a film along the inner surface of the guide surface 43 and passes through the slit 42 from its lower edge. While being blown into the grindstone cover by the air flow, the air is supplied to the upper surface of the edge portion of the glass plate 1 introduced into the grindstone cover.

一方、空気ノズル５から噴出する膜状の空気流は、スリット４２に導入されたガラス板１の上面とガイド面４３の下辺との隙間を通って砥石カバー４内へと流入する。この膜状の空気流は、スリット４２の外側でガラス板１の表面に斜めに衝突してガラス板の表面に付着する研削液を砥石カバー４内へと押し流す。押し流された研削液は、ガラス板の辺縁の表面に添って流れ、辺縁の裏面側にも供給される。この膜状の空気流は、前記ブロワによる外気の流入と相まって、ガラス板表面への研削液の拡散ないし飛散をより確実に防止する。   On the other hand, the film-like air flow ejected from the air nozzle 5 flows into the grindstone cover 4 through a gap between the upper surface of the glass plate 1 introduced into the slit 42 and the lower side of the guide surface 43. This film-like air flow strikes the surface of the glass plate 1 obliquely outside the slit 42 and pushes the grinding liquid adhering to the surface of the glass plate into the grindstone cover 4. The pushed grinding fluid flows along the surface of the edge of the glass plate and is also supplied to the back side of the edge. This film-like air flow, combined with the inflow of outside air by the blower, more reliably prevents the grinding liquid from diffusing or scattering to the glass plate surface.

また、空気ノズル５からの膜状の空気流は、ガイド面４３の両側の領域ｄの部分においてもガラス板１の上面に沿って砥石カバー４内へと流入しており、この領域ｄ部分を流れる空気流によって、ガラス板の辺縁に付着した研削液や砥石カバー４内の空気の乱れによってスリット４２からガラス板１側へ飛散しようとする水滴を砥石カバー４内へと吹き込む。砥石カバー４内に吹き込まれた液滴は、吸気パイプ４６ないし吸気ダクト４７を通過してミストセパレータにより分離回収される。   The film-like air flow from the air nozzle 5 also flows into the grindstone cover 4 along the upper surface of the glass plate 1 in the regions d on both sides of the guide surface 43, Due to the flowing airflow, water droplets that are about to splash from the slit 42 to the glass plate 1 side due to the turbulence of the grinding liquid adhering to the edge of the glass plate or the air in the grindstone cover 4 are blown into the grindstone cover 4. The droplets blown into the grindstone cover 4 pass through the intake pipe 46 or the intake duct 47 and are separated and collected by the mist separator.

辺縁１１のガラス板１の送り方向の前端と終端が加工点ｐを通過する間、研削液は供給され続けねばならない。一方、辺縁１１の前端と終端がスリット４２を通過してゆくとき、通過前後のスリット４２の開口は、ガラス板１の厚さ分だけ広くなり、砥石カバー４内に浮遊する研削液が飛散しやすくなる。図１に示されているように、吸着テーブル２の辺縁１１に添うＹ方向の長さは、ガラス板１の同方向の長さより長い。これにより、吸着テーブル２の周縁２１は、ガラス板１がスリット４２を通過する前と後においても、スリット４２に挿入された状態となり、スリット４２の開口が広くなる程度を抑制できる。   While the front end and the end of the glass plate 1 in the feeding direction of the edge 11 pass through the processing point p, the grinding liquid must be continuously supplied. On the other hand, when the front end and the end of the edge 11 pass through the slit 42, the opening of the slit 42 before and after the passage is widened by the thickness of the glass plate 1, and the grinding fluid floating in the grindstone cover 4 is scattered. It becomes easy to do. As shown in FIG. 1, the length in the Y direction along the edge 11 of the suction table 2 is longer than the length in the same direction of the glass plate 1. Thus, the peripheral edge 21 of the suction table 2 is inserted into the slit 42 before and after the glass plate 1 passes through the slit 42, and the extent to which the opening of the slit 42 becomes wide can be suppressed.

図５は、ガラス板の辺縁研削装置の第２例を示した図である。この第２例の回転砥石３ａは、加工されるガラス板の辺縁１１と略平行な上下２本の砥石軸３３、３３に各複数枚（図では３枚）の円板状の砥石３４を固定して、上下の砥石軸の円板砥石３４が互いにずれた箇所でガラス板１の辺縁１１の上方の稜線と下方の稜線とに接触して、当該辺縁の面取加工を行う構造である。ガラス板１を保持する吸着テーブル２及び吸着テーブル２と砥石３ａとの相対移動方向は、図１のものと同様である。   FIG. 5 is a view showing a second example of the edge grinding apparatus for a glass plate. In the rotating grindstone 3a of the second example, a plurality of (three in the figure) disk-shaped grindstones 34 are provided on two upper and lower grindstone shafts 33, 33 substantially parallel to the edge 11 of the glass plate to be processed. A structure in which the upper and lower edges of the edge 11 of the glass plate 1 are in contact with the upper and lower edges of the glass plate 1 at a location where the disc wheels 34 of the upper and lower grinding wheel shafts are displaced from each other and are chamfered. It is. The suction table 2 holding the glass plate 1 and the relative movement direction of the suction table 2 and the grindstone 3a are the same as those in FIG.

図６は第２実施例の要部の平面図、図７は拡大正面断面図、図８は研削液の供給構造を示す斜視図である。砥石カバー４ａには吸着テーブル２に向く面にガラス板の辺縁１１を導入するスリット４２が設けられ、当該面の外側のスリット４２より上方の部分に第１実施例で説明したと同様な空気ノズル５が設けられている。また、砥石カバー４ａ内の空気を吸引してスリット４２から外気を砥石カバー４ａ内へと流入させる吸気パイプ４６ないし吸気ダクト４７が設けられることも、第１実施例と同様である。   FIG. 6 is a plan view of the main part of the second embodiment, FIG. 7 is an enlarged front sectional view, and FIG. 8 is a perspective view showing a grinding fluid supply structure. The grindstone cover 4 a is provided with a slit 42 for introducing the edge 11 of the glass plate on the surface facing the suction table 2, and air similar to that described in the first embodiment above the slit 42 outside the surface. A nozzle 5 is provided. In addition, the intake pipe 46 or the intake duct 47 for sucking the air in the grindstone cover 4a and allowing the outside air to flow into the grindstone cover 4a from the slit 42 is provided as in the first embodiment.

この第２実施例においても、研削液を円板砥石３４に巻き付けて加工点ｐに供給する巻き付け供給装置４８が設けられている。図８に示すように、巻き付け供給装置４８の研削液の供給口４５は、円板砥石３４とガラス板１とが接触する加工点ｐの反対側の箇所で、円板砥石３４の外周に研削液を供給するように設けられている。供給された研削液は、円板砥石３４の周面に付着した状態で加工点ｐへと搬送される。   Also in the second embodiment, there is provided a winding supply device 48 for winding the grinding liquid around the disc grindstone 34 and supplying it to the processing point p. As shown in FIG. 8, the grinding liquid supply port 45 of the winding supply device 48 is ground on the outer periphery of the disc grindstone 34 at a location opposite to the processing point p where the disc grindstone 34 and the glass plate 1 are in contact with each other. It is provided to supply liquid. The supplied grinding liquid is transported to the processing point p in a state of adhering to the peripheral surface of the disc grindstone 34.

空気ノズル５は、加工されるガラス板の辺縁１１と平行な方向の寸法ｃを全体としての砥石３ａの同方向の寸法ｅより大きくして設けられており、加工点ｐに搬送されてきた研削液を砥石カバー４ａ内へと吹き飛ばすと共に、砥石３ａの両側部分において、ガラス板の表面に付着する研削液及び砥石カバー４ａ内の空気の乱れによってスリット４２からガラス板１の方へと飛散しようとする液滴を砥石カバー４ａ内へと吹き込んで吸気パイプ４６ないし吸気ダクト４７を通して排出する。この第２実施例のものにおいても、スリット４２より上方の砥石カバー４ａの内壁面に切削液を供給する水パイプ４４を設けて、当該水パイプからの研削液を当該内壁面で形成したガイド面４３の下辺からガラス板１の辺縁部上面に供給する構造を採用することもできる。   The air nozzle 5 is provided with a dimension c in the direction parallel to the edge 11 of the glass plate to be processed larger than the dimension e in the same direction of the grindstone 3a as a whole, and has been conveyed to the processing point p. While blowing the grinding liquid into the grindstone cover 4a, let the grinding liquid adhering to the surface of the glass plate and the air in the grindstone cover 4a scatter from the slit 42 toward the glass plate 1 at both sides of the grindstone 3a. Are blown into the grindstone cover 4 a and discharged through the intake pipe 46 or the intake duct 47. Also in the second embodiment, a guide surface is provided with a water pipe 44 for supplying cutting fluid to the inner wall surface of the grindstone cover 4a above the slit 42, and the grinding fluid from the water pipe is formed on the inner wall surface. It is also possible to adopt a structure that supplies the lower side of 43 to the upper surface of the edge of the glass plate 1.

この発明の研削加工装置では、加工しようとするガラス板の辺縁１１をスリット４２を通して砥石３、３ａを覆っている砥石カバー４、４ａ内に導入して研削を行う研削加工装置において、加工される辺縁部分のみに研削液を供給すると共に、当該スリットから外気を砥石カバー４、４ａ内に流入させることによってスリット４２からの研削液の外部への飛散を抑止すると共に、更に砥石カバーの当該スリットに向けて砥石カバー外から研削されるガラス板の辺縁部の表面に膜状の空気流を斜めに噴射することにより、ガラス板の表面に付着した研削液が拡散したり流下したりする前に砥石カバー４、４ａ内へと吹き飛ばして除去し、更に当該空気流によって砥石カバー４、４ａ内の液滴がスリットの外へと飛散するのを防止しているので、加工されるガラス板表面への研削液の付着をより完全に防止することができるという効果がある。   In the grinding apparatus of this invention, the edge 11 of the glass plate to be processed is introduced into the grindstone covers 4 and 4a covering the grindstones 3 and 3a through the slits 42 and processed in the grinding apparatus that performs grinding. In addition to supplying the grinding liquid only to the peripheral edge portion, and by allowing outside air to flow into the grinding wheel covers 4 and 4a from the slit, the grinding fluid is prevented from being scattered from the slit 42 to the outside. Grinding liquid adhering to the surface of the glass plate diffuses or flows down by injecting a film-like air flow obliquely onto the surface of the edge of the glass plate that is ground from the outside of the grinding wheel cover toward the slit. Since it is removed by blowing it into the grinding wheel covers 4 and 4a before, and the droplets in the grinding wheel covers 4 and 4a are prevented from splashing out of the slit by the air flow. There is an effect that it is possible to more completely prevent adhesion of grinding liquid to the surface of the glass plate to be factory.

１ ガラス板
２ テーブル
3,3a 回転砥石
4,4a カバー
５ 空気ノズル
11 辺縁
42 スリット
43 ガイド面
45 研削液供給装置
46 吸気パイプ
47 吸気ダクト
48 研削液の巻き付け供給装置 1 Glass plate 2 Table
3,3a Rotary grinding wheel
4,4a Cover 5 Air nozzle
11 Edge
42 Slit
43 Guide surface
45 Grinding fluid supply device
46 Intake pipe
47 Air intake duct
48 Winding supply device for grinding fluid

Claims (5)

加工する板材を保持するテーブルと、このテーブルに対して相対移動する回転砥石と、この回転砥石を覆う砥石カバーと、加工する板材の辺縁を当該砥石カバー内に導くために当該砥石カバーに設けた水平方向のスリットと、砥石カバー内に導入された前記辺縁ないし砥石の周面に研削液を供給する研削液供給装置と、砥石カバー内の空気を吸引することで前記スリットから砥石カバー内に外気を吸引する吸気装置と、前記砥石カバーの外側から前記スリットを通してカバー内へ膜状の空気を吹き込む空気ノズルとを備え、前記空気ノズルの前記スリットと平行な方向の寸法が、前記砥石の同方向の寸法及び研削液の供給領域の同方向の寸法より大きいことを特徴とする、板材辺縁の研削加工装置。 A table for holding a plate material to be processed, a rotating grindstone that moves relative to the table, a grindstone cover that covers the rotating grindstone, and a grindstone cover provided to guide the edges of the plate material to be processed into the grindstone cover. A horizontal slit, a grinding fluid supply device for supplying a grinding fluid to the peripheral edge of the grinding wheel cover or a circumferential surface of the grinding stone cover, and the air in the grinding wheel cover by sucking air in the grinding wheel cover, And an air nozzle that blows film-like air into the cover through the slit from the outside of the grindstone cover, and the dimension of the air nozzle in the direction parallel to the slit is An apparatus for grinding a plate material edge , wherein the size is larger than the dimension in the same direction and the dimension in the same direction of the supply area of the grinding fluid . 前記テーブルが、加工される板材の面を水平にして保持するテーブルであり、前記空気ノズルが、当該ノズルから噴出する膜状の空気流が前記スリットに導入された板材の辺縁部分の上面に砥石カバー内に向けて斜めに衝突するように設けられている、請求項１記載の研削加工装置。   The table is a table that holds the surface of the plate material to be processed horizontally, and the air nozzle is formed on the upper surface of the edge portion of the plate material into which the film-like air flow ejected from the nozzle is introduced into the slit. The grinding apparatus according to claim 1, wherein the grinding apparatus is provided so as to collide obliquely into the grindstone cover. 前記研削液が、前記スリットに近接して下辺と当該スリットに導入された板材の上面との間に間隙を残して当該スリットと平行に設けたガイド面に添って流下して当該カラス板の辺縁部上面に供給される、請求項２記載の研削加工装置。   The grinding liquid flows down along the guide surface provided in parallel with the slit, leaving a gap between the lower side adjacent to the slit and the upper surface of the plate material introduced into the slit. The grinding apparatus according to claim 2, which is supplied to the upper surface of the edge portion. 前記研削液が、前記回転砥石の周面に巻き付けた状態で供給されると共に、前記スリットに近接して下辺と当該スリットに導入された板材の上面との間に間隙を残して当該スリットと平行に設けたガイド面に添って流下して当該カラス板の辺縁部上面に供給される、請求項２記載の研削加工装置。   The grinding fluid is supplied in a state of being wound around the circumferential surface of the rotating grindstone, and is parallel to the slit leaving a gap between the lower side and the upper surface of the plate material introduced into the slit in the vicinity of the slit. The grinding apparatus according to claim 2, wherein the grinding apparatus flows down along the guide surface provided to the upper surface of the edge portion of the crow plate. 前記テーブルの加工される板材の辺縁に近接している周縁部が、当該板材の辺縁と平行にかつ当該辺縁の長さより長い寸法にして設けられ、当該板材の辺縁部と共に砥石カバーに設けたスリット内へと導入される、請求項１、２又は３記載の研削加工装置。   A peripheral edge adjacent to the edge of the plate material to be processed of the table is provided in parallel with the edge of the plate material and longer than the length of the edge, and the grindstone cover together with the edge portion of the plate material. The grinding apparatus according to claim 1, 2, or 3, wherein the grinding apparatus is introduced into a slit provided in.
JP2012214512A 2012-09-27 2012-09-27 Plate edge grinding machine Expired - Fee Related JP6014443B2 (en)

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JP2012214512A JP6014443B2 (en) 2012-09-27 2012-09-27 Plate edge grinding machine
CN201320549496.9U CN203426823U (en) 2012-09-27 2013-09-05 Plate grinding processing device
TW102217263U TWM478567U (en) 2012-09-27 2013-09-13 Grinding processing apparatus of sheet material
KR2020130007967U KR200486165Y1 (en) 2012-09-27 2013-09-26 Grinding apparatus for plate member

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KR20190124545A (en) * 2018-04-26 2019-11-05 주식회사 케이엔제이 Substrate grinding apparatus
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