KR20110116764A - Glass plate mounting system for polishing apparatus and glass plate polishing method - Google Patents

Glass plate mounting system for polishing apparatus and glass plate polishing method Download PDF

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Publication number
KR20110116764A
KR20110116764A KR1020100036373A KR20100036373A KR20110116764A KR 20110116764 A KR20110116764 A KR 20110116764A KR 1020100036373 A KR1020100036373 A KR 1020100036373A KR 20100036373 A KR20100036373 A KR 20100036373A KR 20110116764 A KR20110116764 A KR 20110116764A
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KR
South Korea
Prior art keywords
glass plate
pad
mounting
polishing
mounting pad
Prior art date
Application number
KR1020100036373A
Other languages
Korean (ko)
Inventor
나상업
문원재
오형영
이대연
Original Assignee
주식회사 엘지화학
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Application filed by 주식회사 엘지화학 filed Critical 주식회사 엘지화학
Priority to KR1020100036373A priority Critical patent/KR20110116764A/en
Publication of KR20110116764A publication Critical patent/KR20110116764A/en

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B41/00Component parts such as frames, beds, carriages, headstocks
    • B24B41/06Work supports, e.g. adjustable steadies
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B7/00Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
    • B24B7/20Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground
    • B24B7/22Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground for grinding inorganic material, e.g. stone, ceramics, porcelain
    • B24B7/24Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground for grinding inorganic material, e.g. stone, ceramics, porcelain for grinding or polishing glass
    • B24B7/242Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground for grinding inorganic material, e.g. stone, ceramics, porcelain for grinding or polishing glass for plate glass

Abstract

The present invention discloses a glass plate mounting system for a polishing apparatus and a glass plate polishing method. A system for mounting a glass plate on a polishing apparatus according to the present invention includes a mounting pad having a hole formed thereon and a glass plate mounted on one surface thereof; A vacuum forming unit configured to provide a vacuum pressure through a hole formed in the mounting pad to vacuum suck the glass plate to the mounting pad; And a liquid supply unit supplying a liquid through a hole formed in the mounting pad to separate the glass plate from the mounting pad.

Description

Glass plate mounting system for polishing apparatus and glass plate polishing method
The present invention relates to a technique for mounting a glass plate, and more particularly to a system for mounting a glass plate in a polishing apparatus for polishing a glass plate and a glass plate polishing method using the same.
In general, the glass plate (glass substrate) applied to the liquid crystal display is very important to maintain a certain level of flatness in order to accurately implement the image. Therefore, minute irregularities or undulations present on the surface of the float glass formed through the float chamber must be removed by the polishing process.
In the glass plate polishing apparatus according to the prior art, the glass plate is placed on the lower unit (lower plate), and the polishing pad of the upper unit (upper plate) is brought into contact with the glass plate, while the lower unit is rotated, thereby causing natural dropping on the upper unit. A glass plate is polished using the polishing liquid supplied by the. Alternatively, the polishing plate is attached to the lower unit, and the glass plate is polished while supplying a predetermined polishing liquid to the polishing target glass plate while the glass plate is fixed to the upper unit (top plate).
In this conventional glass plate polishing apparatus, a mounting pad, also called a back pad, is often used to fix the glass plate during polishing. The mounting pad is to prevent the glass plate from being damaged when the glass plate is placed directly on the lower unit. The mounting pad is mounted on the upper part of the lower unit, and the glass plate is mounted and fixed on the mounting pad.
Conventional mounting pads typically include a cell-shaped urethane pad in which urethane is wet foamed to form a small open pore on the surface and an empty space having a columnar structure therein. However, such a conventional mounting pad should have various characteristics in order to properly secure the fixing force to the glass plate in the polishing process of the glass plate. For example, conventional mounting pads must have surface smoothness and thickness uniformity, and must have adequate cushioning to prevent breakage of the glass plate. In addition, the pores must be formed in a suitable arrangement and size on the surface to fix the glass plate when the glass plate is polished, and the air trapped when attaching a large area of glass must be well ventilated. In addition, when the water infiltrates into the open pore of the mounting pad surface, the glass plate adhesion is reduced, so it must also have adequate water repellent properties for water.
As such, the conventional glass plate mounting technique requires the mounting pad to have various characteristics in order to securely fix the glass plate. However, it is very difficult to manufacture a mounting pad having all of these characteristics. In particular, the mounting pad should also have a wide width in the situation that the size of the glass plate is getting larger, it is more difficult to manufacture a wide mounting pad with all the above characteristics.
Therefore, according to the prior art, many difficulties are involved in manufacturing a mounting pad for attaching a glass plate to a polishing apparatus, which consumes a lot of time and money. In addition, since the adhesion to the glass plate is not properly secured, the polishing efficiency is lowered when the glass plate is polished, thereby degrading the quality of the glass plate.
Accordingly, the present invention was devised to solve the above problems, and provides a glass plate mounting system and a glass plate polishing method using the same, which can more reliably fix the glass plate at the time of polishing the glass plate while eliminating process constraints in manufacturing the mounting pad. It aims to do it.
Other objects and advantages of the present invention can be understood by the following description, and will be more clearly understood by the embodiments of the present invention. Also, it will be readily appreciated that the objects and advantages of the present invention may be realized by the means and combinations thereof indicated in the claims.
System for mounting a glass plate in the polishing apparatus according to the present invention for achieving the above object, the mounting pad is formed and the glass plate is mounted on one surface; A vacuum forming unit configured to provide a vacuum pressure through a hole formed in the mounting pad to vacuum suck the glass plate to the mounting pad; And a liquid supply unit supplying a liquid through a hole formed in the mounting pad to separate the glass plate from the mounting pad.
Preferably, the mounting pad is a polymer pad positioned in contact with the glass plate in the upper position, a base plate positioned in the lower portion of the polymer pad to support the polymer pad and interposed between the polymer pad and the base plate to adhere to each other An adhesive layer is included.
Preferably, the liquid supply supplies water.
In addition, the glass plate polishing apparatus according to the present invention for achieving the above object includes the above-described glass plate mounting system.
In addition, the method for polishing a glass plate according to the present invention for achieving the above object comprises the steps of providing a mounting pad with a hole; Vacuum suctioning the glass plate to the mounting pad by providing a vacuum pressure through a hole formed in the mounting pad; Polishing an upper surface of the glass plate; And separating the polished glass plate from the mounting pad by supplying a liquid through a hole formed in the mounting pad.
Preferably, the mounting pad is a polymer pad positioned in contact with the glass plate in the upper position, a base plate positioned in the lower portion of the polymer pad to support the polymer pad and interposed between the polymer pad and the base plate to adhere to each other And an adhesive layer.
Preferably, the glass plate separation step supplies water as a liquid.
According to the present invention, in order to secure the fixing force of the glass plate, it is not necessary to greatly limit the characteristics of the mounting pad. For example, the constraint that the pores should be formed in the proper arrangement and size for attaching the glass to the surface of the mounting pad, or that the air trapped when attaching the glass, should be well ventilated. In addition, the conditions that must also have adequate water repellent properties for water are not greatly required for the mounting pad according to the present invention. Therefore, the manufacturing process of the mounting pad can be made easier, which reduces the manufacturing time and cost of the mounting pad and increases the manufacturing yield. In addition, various materials may be used in the manufacture of the mounting pad, and may also be used in the mounting pad having a large area. Therefore, it can be used also when polishing a large area glass plate.
Further, according to the present invention, the fixing force of the glass plate to the mounting pad is greatly improved when polishing the glass plate without demanding the characteristics of the mounting pad in this way. Therefore, it is possible to improve the quality and yield of the glass plate by increasing the polishing efficiency according to the glass plate polishing.
In addition, according to the present invention, after finishing polishing, the glass plate can be easily separated (demounted) from the mounting pad without giving a large burden to the glass plate.
BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate preferred embodiments of the invention and, together with the description of the invention given below, serve to further the understanding of the technical idea of the invention, And should not be construed as limiting.
1 is a view schematically showing the configuration of a glass plate mounting system according to a preferred embodiment of the present invention.
2 is a view showing the configuration of a mounting pad according to an embodiment of the present invention.
3 is a view showing a mounting pad according to another embodiment of the present invention.
4 is a diagram showing a mounting pad according to another embodiment of the present invention.
5 is a flow chart schematically showing a method of polishing a glass plate on a polishing apparatus using the above-described glass plate mounting system according to an embodiment of the present invention.
Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms or words used in the specification and claims should not be construed as having a conventional or dictionary meaning, and the inventors should properly explain the concept of terms in order to best explain their own invention. Based on the principle that can be defined, it should be interpreted as meaning and concept corresponding to the technical idea of the present invention.
Therefore, the embodiments described in the present specification and the configurations shown in the drawings are only the most preferred embodiments of the present invention and do not represent all the technical ideas of the present invention. Therefore, It is to be understood that equivalents and modifications are possible.
1 is a view schematically showing the configuration of a glass plate mounting system according to a preferred embodiment of the present invention. Referring to FIG. 1, the glass plate mounting system according to the present invention includes a mounting pad 100, a vacuum forming unit 200, and a liquid supply unit 300.
The mounting pad 100 is a pad on which a glass plate 1 is mounted. In general, the glass plate 1 is mounted on the upper surface of the mounting pad 100, but when the mounting pad 100 is located on the upper surface of the polishing apparatus, the glass plate 1 may be mounted on the lower surface of the mounting pad 100. . In the mounting pad 100 according to the present invention, as shown in FIG. 1, holes 101 penetrating the upper and lower portions of the mounting pad 100 are formed.
Preferably, the mounting pad 100 is composed of a polymer pad 110, a base plate 130 and an adhesive layer 120. 2 is a view showing the configuration of a mounting pad 100 according to an embodiment of the present invention.
Referring to FIG. 2, the polymer pad 110 is positioned at the top of the mounting pad 100 to directly contact the glass plate 1 when the glass plate 1 is mounted. Here, in order to reduce the mechanical impact applied to the glass plate 1 when the glass plate 1 is polished, the polymer pad 110 may have a cushion function capable of absorbing the impact. In the process of polishing the glass plate 1, a large and small impact may be applied to the glass plate 1, which may damage the glass plate 1. Accordingly, the polymer pad 110 may be formed of a material having elasticity such that the impact is not transmitted to the glass plate 1 and thus may act as a cushion layer.
Thus, the polymer pad 110 may be made of silicone rubber or polyurethane. This is because silicone rubber and polyurethane have excellent cushioning performance and have a large impact absorption effect. In particular, polyurethanes may be prepared with acrylates. However, the present invention is not limited to the specific material of the polymer pad 110, it is apparent to those skilled in the art that the polymer pad 110 may be made of various materials.
The polymer pad 110 preferably has a thickness of 1 mm to 10 mm. More preferably, the thickness of the polymer pad 110 may be 1mm to 3mm. The polymer pad 110 may be manufactured by various methods such as a method of forming a sheet by extrusion or a method of UV curing or thermosetting after coating.
On the other hand, since the mounting pad 100 according to the present invention is formed with a hole 101 penetrating in the vertical direction, the polymer pad 110 included therein is also a hole penetrating in the vertical direction as shown in FIG. 2. 111 is formed. At this time, the hole 111 of the polymer pad 110 may have a diameter of 1um to 500um. More preferably, the diameter of the hole 111 of the polymer pad 110 may be 1um to 100um. Here, the holes 111 of the polymer pad 110 may be formed in various ways such as laser drill or hole punching.
As shown in FIG. 2, the base plate 130 is positioned below the polymer pad 110 to support the polymer pad 110. Pressure is applied from the top to the bottom of the mounting pad 100 to polish the glass plate 1. The base plate 130 is mechanically adapted to allow the mounting pad 100 to withstand such polishing pressure when polishing the glass plate 1. Provides rigidity Therefore, the base plate 130 may be made of a material having rigidity. Preferably, the base plate 130 may be made of a ceramic or metal material. At this time, the thickness of the base plate 130 may be 10mm to 450mm. More preferably, the base plate 130 has a thickness of 100mm to 300mm.
In the base plate 130 according to the present invention, a hole 131 penetrating up and down is formed like the polymer pad 110. At this time, the diameter of the hole 131 formed in the base plate 130 may be 10um to 2mm. More preferably, the hole 131 of the base plate 130 has a diameter of 10um to 500um. Here, various methods known in the art to which the present invention pertains may be adopted as a method of forming the hole 131 in the base plate 130, and the present invention is not limited to the hole forming method. In addition, when the base plate 130 is made of a ceramic material, the hole 131 of the base plate 130 may be naturally formed by sintering.
Meanwhile, in FIG. 2, although the hole 131 of the base plate 130 is formed to penetrate from the bottom of the base plate 130 to the top, the present invention is not necessarily limited thereto. For example, the hole 131 of the base plate 130 may be formed so as to penetrate upward from the side of the base plate 130.
The adhesive layer 120 is interposed between the polymer pad 110 and the base plate 130. The adhesive layer 120 may be formed by various methods such as interposing an adhesive by a method such as coating or interposing an adhesive sheet having an adhesive component on both surfaces thereof. As such, the adhesive layer 120 interposed between the polymer pad 110 and the base plate 130 adheres the polymer pad 110 and the base plate 130 to each other. In addition, as shown in FIG. 2, similarly to the polymer pad 110 and the base plate 130, holes 121 are formed in the adhesive layer 120. In this case, the diameter of the holes 121 of the adhesive layer 120 may be, for example, 10 μm to 2 mm, similar to the base plate 130, but holes of various sizes may be formed.
Meanwhile, although the hole 101 formed in the mounting pad 100 is illustrated in FIG. 2, the present invention is not limited by the size, shape, number, and the like of the illustrated holes, and various embodiments exist according to the present invention. Can be.
3 is a diagram illustrating a mounting pad 100 according to another embodiment of the present invention.
Referring to FIG. 3, the mounting pad 100, that is, the polymer pad 110, the adhesive layer 120, and the holes 111, 121, and 131 of the base plate 130 are not formed in the vertical direction, and the mounting pad ( It is formed radially in the upper direction with respect to the center of the 100).
4 is a diagram illustrating a mounting pad 100 according to another embodiment of the present invention.
Referring to FIG. 4, the diameter and the number of the holes 111 formed in the polymer pad 110 are different from the diameter and the number of the holes 121 and 131 formed in the base plate 130 and the adhesive layer 120. That is, only one hole 121, 131 is formed in the center of the base plate 130 and the adhesive layer 120, whereas a plurality of holes 111 are formed in the polymer pad 110. The diameters of the holes 121 and 131 of the base plate 130 and the adhesive layer 120 are larger than the diameters 111 of the holes of the polymer pad 110. In addition, the holes 121 and 131 of the base plate 130 and the adhesive layer 120 are formed in the vertical direction, but the holes 111 of the polymer pad 110 are the holes of the base plate 130 and the adhesive layer 120. It is formed radially centering on (121, 131).
As such, the holes 101 of the mounting pad 100 may be formed in various ways such as size, shape, and number.
The vacuum forming unit 200 provides a vacuum pressure through the holes 101 formed in the mounting pad 100, and vacuum-adsorbs the glass plate 1 to the mounting pad 100. For example, the vacuum forming unit 200 includes a vacuum pump to suck air between the glass plate 1 and the mounting pad 100 through the holes 101 of the mounting pad 100. Then, a vacuum state is formed between the lower portion of the glass plate 1 and the mounting pad 100 so that the glass plate 1 may be adsorbed to the upper portion of the mounting pad 100.
As described above, when the glass plate 1 is vacuum-adsorbed to the mounting pad 100 by the vacuum forming unit 200, the glass plate 1 is strongly fixed to the mounting pad 100. Therefore, the glass plate 1 is not shaken or separated from the mounting pad 100 even during polishing of the glass plate 1, and the glass plate 1 is attached to the mounting pad 100 with a strong fixing force. Conventionally, the glass plate 1 is mounted to the mounting pad 100 through the surface tension of an open pore formed on the surface of the mounting pad 100, and the conditions required for the characteristics of the mounting pad 100 are not only very difficult. The adhesion of the glass plate 1 was also not very strong. However, according to the present invention, the glass plate 1 is strongly vacuum-adsorbed to the mounting pad 100 by the vacuum forming unit 200. Therefore, in the polishing process, stable polishing is possible without shaking or separating the glass plate 1.
The liquid supply part 300 supplies the liquid through the holes 101 formed in the mounting pad 100. Preferably, the liquid supply part 300 supplies water through the hole 101 of the mounting pad 100. After the polishing is completed after the glass plate 1 is attached to the mounting pad 100 by the vacuum forming unit 200 and polishing is completed, the glass plate 1 should be separated from the mounting pad 100. At this time, the liquid supply unit 300 releases the vacuum between the glass plate 1 and the mounting pad 100 by supplying liquid between the glass plate 1 and the mounting pad 100 through the holes 101 of the mounting pad 100. Thus, the glass plate 1 can be separated from the mounting pad 100.
Conventionally, a force is applied to the side of the glass plate 1 to separate the glass plate 1 attached to the mounting pad 100 so that the glass plate 1 and the mounting pad 100 are separated to some extent, and then water In some cases, a method of separating the glass plate 1 from the mounting pad 100 may be used. However, in this case, a problem may occur in which the glass plate 1 may be broken or deformed due to the force applied to the glass plate 1. In addition, it takes a long time for water to be supplied from the side of the glass plate 1 to the center portion, and a continuous force must be applied to separate the glass plate 1 and the mounting pad 100. However, according to the present invention, since water is evenly supplied from the side to the center of the glass plate 1 through the holes 101 formed in the mounting pad 100, the glass plate 1 without applying a large force to the glass plate 1. It can be easily and quickly separated from the mounting pad (100). In addition, the problem that the glass plate 1 is broken or deformed may not occur.
Glass plate mounting system according to an embodiment of the present invention, as shown in Figure 1, the supply pipe for connecting the hole 101 formed in the vacuum forming unit 200 and the liquid supply unit 300 and the mounting pad 100 ( 400 may be provided separately. Therefore, in this case, the vacuum forming unit 200 sucks air from the hole 101 of the mounting pad 100 through the supply pipe 400 to form a vacuum, and the liquid supply unit 300 forms the supply pipe 400. Through the hole 101 of the mounting pad 100 can be supplied with water.
On the other hand, the grinding | polishing apparatus which concerns on this invention is comprised including the glass plate mounting system mentioned above.
5 is a flowchart schematically showing a method of polishing the glass plate 1 on the polishing apparatus using the above-described glass plate mounting system according to an embodiment of the present invention.
Referring to FIG. 5, first, a mounting pad 100 having a hole 101 penetrating up and down is provided (S110). At this time, the mounting pad 100 is located in the upper polymer pad 110 in contact with the glass plate 1, the base plate 130 is located under the polymer pad 110 to support the polymer pad 110 and It may be composed of an adhesive layer 120 for bonding the polymer pad 110 and the base plate 130. Here, the polymer pad 110 may be made of silicone rubber or polyurethane material. In addition, the base plate 130 may be made of a ceramic or metal material. In addition, the diameters of the holes 121 and 131 formed in the base plate 130 and the adhesive layer 120 may range from 10 μm to 2 mm, and the diameter of the hole 111 formed in the polymer pad 110 may range from 1 μm to 500 μm. .
Next, the vacuum plate is provided through the hole 101 formed in the mounting pad 100 in this manner, and the glass plate 1 is vacuum-adsorbed to the mounting pad 100 (S120), and the glass plate 1 is polished ( S130). Then, when polishing of the glass plate 1 is finished, the liquid is supplied through the hole 101 formed in the mounting pad 100 to separate the glass plate 1 from the mounting pad 100 (S140). At this time, in step S140, the glass plate 1 may be supplied with water to separate the mounting pad 100.
As described above, although the present invention has been described by way of limited embodiments and drawings, the present invention is not limited thereto and is intended by those skilled in the art to which the present invention pertains. Of course, various modifications and variations are possible within the scope of equivalents of the claims to be described.
Meanwhile, although the term 'part' is used in the present specification, it refers to a logical structural unit, and it is obvious to those skilled in the art that the present invention does not necessarily represent a component that can be physically separated.
1: glass plate
100: mounting pad
101: hole
110: polymer pad
120: adhesive layer
130: base plate
200: vacuum forming unit
300: liquid supply
400: supply pipe

Claims (13)

  1. In a system for mounting a glass plate on a polishing apparatus,
    A mounting pad having a hole formed thereon and a glass plate mounted on one surface thereof;
    A vacuum forming unit configured to provide a vacuum pressure through a hole formed in the mounting pad to vacuum suck the glass plate to the mounting pad; And
    Liquid supply unit for supplying a liquid through a hole formed in the mounting pad to separate the glass plate from the mounting pad
    Glass plate mounting system comprising a.
  2. The method of claim 1,
    The mounting pad may include a polymer pad positioned at an upper portion to contact a glass plate, a base plate positioned at a lower portion of the polymer pad to support the polymer pad, and an adhesive layer interposed between the polymer pad and the base plate to adhere to each other. Glass plate mounting system, characterized in that.
  3. The method of claim 2,
    The diameter of the hole formed in the base plate and the adhesive layer is 10um to 2mm, the diameter of the hole formed in the polymer pad is 1um to 500um, characterized in that the glass plate mounting system.
  4. The method of claim 2,
    The base plate is a glass plate mounting system, characterized in that made of a ceramic or metal material.
  5. The method of claim 2,
    The polymer pad is a glass plate mounting system, characterized in that made of silicon rubber or polyurethane material.
  6. The method of claim 1,
    And the liquid supply portion supplies water as the liquid.
  7. Polishing device provided with the glass plate mounting system according to claim 1.
  8. In the method of polishing a glass plate,
    Providing a holed mounting pad;
    Vacuum suctioning the glass plate to the mounting pad by providing a vacuum pressure through a hole formed in the mounting pad;
    Polishing an upper surface of the glass plate; And
    Separating the polished glass plate from the mounting pad by supplying a liquid through a hole formed in the mounting pad
    Glass plate polishing method comprising a.
  9. The method of claim 8,
    The mounting pad may include a polymer pad positioned at an upper portion to contact a glass plate, a base plate positioned at a lower portion of the polymer pad to support the polymer pad, and an adhesive layer interposed between the polymer pad and the base plate to adhere to each other. The glass plate polishing method characterized by the above-mentioned.
  10. 10. The method of claim 9,
    The diameter of the hole formed in the base plate and the adhesive layer is 10um to 2mm, the diameter of the hole formed in the polymer pad is 1um to 500um, characterized in that the glass plate.
  11. 10. The method of claim 9,
    The base plate is a glass plate polishing method, characterized in that made of a ceramic or metal material.
  12. 10. The method of claim 9,
    The polymer pad is a glass plate polishing method, characterized in that made of silicon rubber or polyurethane material.
  13. The method of claim 8,
    The glass plate separating step, the glass plate polishing method, characterized in that to supply water as the liquid.
KR1020100036373A 2010-04-20 2010-04-20 Glass plate mounting system for polishing apparatus and glass plate polishing method KR20110116764A (en)

Priority Applications (1)

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Application Number Priority Date Filing Date Title
KR1020100036373A KR20110116764A (en) 2010-04-20 2010-04-20 Glass plate mounting system for polishing apparatus and glass plate polishing method

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102962735A (en) * 2012-11-30 2013-03-13 烟台鑫海矿山机械有限公司 Rubber plate polishing device
KR101490458B1 (en) * 2014-02-20 2015-02-06 주식회사 도우인시스 Polishing Machine for Inner Curved Surface and Plane Surface of Curved Window Glass in Mobile Device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102962735A (en) * 2012-11-30 2013-03-13 烟台鑫海矿山机械有限公司 Rubber plate polishing device
KR101490458B1 (en) * 2014-02-20 2015-02-06 주식회사 도우인시스 Polishing Machine for Inner Curved Surface and Plane Surface of Curved Window Glass in Mobile Device
WO2015126016A1 (en) * 2014-02-20 2015-08-27 주식회사 도우인시스 Grinder for flat surface and inside diameter of curved window glass of mobile device

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