JP2018134730A - Glass panel edge polishing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a glass panel edge polishing device.SOLUTION: A glass panel edge polishing device includes: a base frame; a spindle motor attached to the base frame; a polishing wheel which is coupled to a rotary shaft of the spindle motor, rotates at high speed, and contacts with an edge of a glass panel at a predetermined polishing point to perform polishing through rotational friction; a first nozzle which is positioned above the glass panel and is coupled to the base frame so as to rotate at an outer periphery part of the polishing wheel; a second nozzle which is positioned at a lateral part of the glass panel and is coupled to the base frame so as to rotate at the outer periphery part of the polishing wheel; a rotary nozzle driving part which rotates the first nozzle and the second nozzle along the outer periphery part of the polishing wheel independently of the polishing wheel; and a polishing water supply part which supplies polishing water to the first nozzle and the second nozzle.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a glass panel edge polishing apparatus.

  In the manufacturing process of LCD (liquid crystal display), AMOLED (active matrix organic light emitting display), solar cell, etc., a glass substrate is used as a base material, and the manufacturing process is finished. Thereafter, a panel having a predetermined size formed on the glass substrate is cut and separated. In the edge polishing process in which the edge part is polished, the cut and separated panel is subjected to a process of inspecting the edge part after being polished.

  Among the above steps, in the edge polishing step, the polishing wheel is brought into contact with the edge portion of the glass panel while being rotated at a predetermined rotation speed, and polishing is performed. In this process, there is a problem in that when the polishing surface generates high heat due to friction and a continuous polishing operation is performed, the polishing surface is cracked. Therefore, in order to solve this, polishing water is supplied to the polishing surface so that the soft polishing operation is performed while the polishing surface is not heated.

  Patent Document 1 discloses a technique in which a rotatable nozzle is arranged around a polishing wheel and a polishing water is sprayed intensively at a required position. Patent Document 2 discloses a contact between a polishing stone and a substrate. A technique is disclosed in which polishing water is sprayed vertically around a polishing surface.

Korean Published Patent No. 10-2013-0010707 Korean Published Patent No. 10-2005-0002279

  By the way, in the above-described edge polishing step, the polishing wheel may scatter a large amount of open fume, and scratches may occur on the polished glass panel. Therefore, in order to prevent the polishing quality from being deteriorated due to scratches, it is necessary to spray polishing water accurately and reliably to the polishing point.

FIG. 1A and FIG. 1B are conceptual diagrams relating to an example of a polishing apparatus combined with a conventional polishing water supply apparatus, and drawings for explaining a modified polishing method using the polishing apparatus.
As shown in FIG. 1A, the polishing apparatus includes a polishing wheel 11 and a polishing water supply device 21, and only a part of the polishing wheel 11 can come into contact with the edge of the glass panel 1 from the polishing water supply device 21. Exposed outside. When it is assumed that a part of the part of the polishing wheel 11 exposed to the outside that is in contact with the glass panel edge is the polishing point P1, the polishing water supply device 21 injects polishing water onto the polishing point P1. Like that. Here, the position of the polishing water supply device 21 is fixed, and the polishing water supply point to which the polishing water is jetted is also fixed to the polishing point.

  In addition, as shown in FIG. 1B, in the case of processing the straight portion with respect to the edge 2a of the glass panel (see A), polishing can be performed without any problem, but the straight portion with respect to the other edge 2b can be polished. In the case of the processing (see B) and the processing of the curved portion 2c between the edges (see C), the glass panel 1 and the polishing table (not shown) are provided by the mechanism of the polishing water supply device 21 whose position is fixed. ) And an irregular polishing process by X, Y axis circular interpolation is impossible.

In order to prevent this, a method of rotating the polishing water supply device 21 depending on the relative position of the polishing wheel 11 with respect to the glass panel 1 has been proposed. In this case, the polishing water supply device rotating around the polishing wheel 11 is proposed. 21 has a problem of twisting of a hose for injecting polishing water from the outside.
As a supplement to the problem of twisting of the polishing water injection hose, a hollow spindle motor with a hollow formed in the center of the spindle motor was used, and a method of connecting the hose through the hollow was applied. Other problems such as high cost, long spindle length, and vibration problems caused by the rotation of the grinding wheel have deteriorated the grinding quality.

  The above-mentioned problem relating to the polishing apparatus is technical information that the inventor possesses for the derivation of the present invention or has learned in the derivation process of the present invention. It is not intended to be a publicly known technique disclosed in

  In view of the above problems, the present invention improves the polishing quality by spraying the polishing water accurately and reliably to the polishing point of the glass panel without the polishing water supply device interfering with the polishing wheel. It is an object of the present invention to provide a glass panel edge polishing apparatus capable of using a general spindle motor and solving a vibration problem.

  According to one embodiment of the present invention, a base frame, a spindle motor attached to the base frame, and a rotating shaft coupled to the spindle motor rotate at a high speed and contact the edge of the glass panel at a predetermined polishing point. A polishing wheel that performs polishing through rotational friction, a first nozzle that is positioned above the glass panel and that is coupled to the base frame to rotate the outer periphery of the polishing wheel, and a side portion of the glass panel And a second nozzle coupled to a base frame to rotate on the outer periphery of the grinding wheel, and independently of the grinding wheel, the first nozzle and the second nozzle are connected to the grinding wheel. A glass panel edge polisher comprising: a rotary nozzle drive unit that rotates along an outer periphery; and a polishing water supply unit that supplies polishing water to the first nozzle and the second nozzle. Apparatus is provided.

The first nozzle includes a vertical spray nozzle that sprays polishing water supplied from the upper part of the glass panel through the polishing water supply unit, and the second nozzle is polished from the front of the polishing wheel. A precision concentrating nozzle that injects the polishing water supplied through the polishing water supply unit in a lateral direction toward the point may be included.
The rotary nozzle driving unit rotates the first nozzle and the second nozzle so that the first nozzle and the second nozzle move to a predetermined injection position according to the position of the polishing wheel with respect to the glass panel. By doing so, the first nozzle can be positioned at the top of the glass panel in the vicinity of the polishing point, and the second nozzle can be positioned at a point where the polishing point is viewed from the front of the polishing wheel.

A first member that is formed in a donut shape along the outer periphery of the grinding wheel and is coupled to the base frame; and a second member that is rotatably coupled to the outer periphery of the first member. The first nozzle and the second nozzle are respectively coupled to the second member, and the rotary nozzle driving unit rotates the second member, whereby the first nozzle and the second nozzle are It can rotate along the outer periphery of the grinding wheel.
The polishing water supply unit is fluidly connected to the polishing water supply port drilled at a predetermined point of the first member and the polishing water supply port, and is exposed to the surface along the outer peripheral edge of the first member. A polishing water supply flow path that is recessed and formed, and two polishing water discharge ports that are perforated at predetermined points of the second member so as to be fluidly connected to the polishing water supply flow path. But you can.

The first nozzle is coupled to the second member to be connected to the first polishing water discharge port, and the second nozzle is connected to the second polishing water discharge port to the second member. By connecting a polishing water injection hose to the polishing water supply port, polishing water is supplied to the first nozzle and the second nozzle.
A sealing material for preventing the polishing water supplied to the polishing water supply channel from flowing out is connected to a portion where the first member and the second member are combined.
A vibration sensor for sensing a vibration value generated by the spindle motor and the rotary nozzle driving unit; and an inspection unit for receiving a signal in real time from the vibration sensor, the inspection unit being measured by the vibration sensor. By using the measured value, it is possible to determine the polishing quality and the presence or absence of nozzle abnormality.

According to a preferred embodiment of the present invention, the polishing water spray nozzle is provided to rotate around the polishing wheel, and the polishing water spray is performed when the polishing wheel performs polishing while moving along the edge of the glass panel. By rotating the nozzle to an appropriate position and determining the polishing water injection point, polishing proceeds without the polishing water supply device interfering with the polishing wheel.
In addition, by providing two spray nozzles, that is, a vertical spray nozzle and a precision concentration nozzle, it is possible to polish accurately and reliably at a point where the polishing wheel and the glass panel are in contact with each other without wasting the polishing water. It is possible to improve the polishing quality by preventing water from being injected and preventing fumes from entering the panel and causing panel damage.

Also, a polishing water supply nozzle is formed in the rotating mechanism of the polishing water injection nozzle, and a polishing water injection hose is connected to connect the polishing water injection hose, so that the polishing water injection nozzle rotates without a hose twisting problem without using a hollow spindle. Polishing water can be supplied to the nozzle, thereby solving the vibration problem generated in the hollow spindle while using a general spindle motor.
Furthermore, by introducing a vibration sensor, the vibration value can be fed back in real time via the vibration sensor, so there are problems such as over-polishing due to spindle abnormalities and poor polishing quality due to nozzle abnormalities. It can be checked not to occur.

It is a conceptual diagram concerning an example of the grinding | polishing apparatus with which the conventional grinding | polishing water supply apparatus was couple | bonded. It is a conceptual diagram concerning an example of the grinding | polishing apparatus with which the conventional grinding | polishing water supply apparatus was couple | bonded. It is a conceptual diagram of the glass panel edge grinding | polishing apparatus in one Embodiment of this invention. It is a perspective view of the glass panel edge grinding | polishing apparatus in one Embodiment of this invention. It is a perspective view which shows the grinding | polishing wheel and two grinding | polishing water injection nozzles in one Embodiment of this invention. It is sectional drawing which showed the rotary nozzle drive part in one Embodiment of this invention. It is the expanded sectional view which showed the polishing water supply part in one Embodiment of this invention.

While the invention is susceptible to various modifications, and may have various embodiments, specific embodiments are illustrated in the drawings and are described in detail below.
However, it should be understood that these are not intended to limit the present invention to specific embodiments, but include all modifications, equivalents or alternatives that fall within the spirit and scope of the present invention. In the description of the present invention, when it is determined that a specific description related to a related known technique obscures the gist of the present invention, a detailed description thereof will be omitted.

Terms such as first and second are used in the description of various components, but the components are not limited by the terms. The terms are only used to distinguish one component from another.
Also, the terminology used in the present application is merely used for describing particular embodiments, and is not intended to limit the present invention. An expression used in the singular encompasses the expression of the plural, unless it conspicuously differs in context.
In this application, terms such as “comprising” or “having” designate that there are features, numbers, steps, actions, components, parts, or combinations thereof described in the specification. It should be understood that this does not exclude the possibility of the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the description with reference to the accompanying drawings, the same or corresponding components are denoted by the same drawing numbers. , And redundant explanation related to them is omitted.

FIG. 2 is a conceptual diagram of a glass panel edge polishing apparatus according to an embodiment of the present invention, FIG. 3 is a perspective view of the glass panel edge polishing apparatus according to an embodiment of the present invention, and FIG. FIG. 5 is a perspective view showing a polishing wheel and two polishing water jet nozzles in one embodiment of the present invention, FIG. 5 is a cross-sectional view showing a rotary nozzle driving unit in one embodiment of the present invention, and FIG. FIG. 3 is an enlarged cross-sectional view showing a polishing water supply unit in an embodiment of the present invention.
2 to 6, the glass panel 10, the base frame 100, the spindle motor 110, the polishing wheel 120, the vertical injection nozzle 130, the precision concentration nozzle 140, the rotary nozzle driving unit 150, the first member 152, the second member 154, A polishing water supply unit 160, a polishing water supply port 162, a polishing water supply channel 164, a polishing water discharge port 166, a sealing material 168, and a vibration sensor 170 are illustrated.

In this embodiment, nozzles for injecting polishing water (DI water) are provided at two locations, and each nozzle is constituted by a rotary nozzle unit that rotates around the polishing wheel by using electric power. Instead, it features a glass panel edge polishing apparatus equipped with a vibration sensor.
That is, in the present embodiment, two types of nozzles, that is, a vertical injection nozzle 130 and a precision concentration nozzle 140 are provided as nozzles for injecting polishing water around the polishing wheel. By configuring both the two nozzles 130 and 140 to rotate around the grinding wheel, the relative position with respect to the panel edge of the grinding wheel is determined according to the shape of the glass panel. The position of the nozzle is controlled by rotating and moving each nozzle at an appropriate ejection position.

  Moreover, in order to supply polishing water to the rotary nozzle, a general spindle motor is used without using a hollow spindle motor, but by forming a polishing water supply flow path in a mechanism for rotating the nozzle, The present invention is characterized in that the polishing water is stably supplied with respect to the twisting problem of the polishing water injection hose. Accordingly, since it is not necessary to use a hollow spindle motor that is expensive and has a large vibration problem, the vibration problem is stable, the price is not high, and the polishing quality can be improved.

  The polishing apparatus according to this embodiment is an apparatus that performs polishing while moving along the edge of the glass panel 10 to be polished, as shown in FIG. 4, the spindle motor 110 is mounted on the base frame 100, and the polishing wheel 120 is coupled to the rotation shaft of the spindle motor 110.

The base frame 100 is an iron structure, and plays a role of providing a basic frame in which each component of the polishing apparatus is mounted, installed, fixed, and coupled.
The spindle motor 110 is a motor that rotates the polishing wheel 120 coupled to the rotating shaft at a high speed. As described above, the polishing apparatus according to the present embodiment includes a general spindle instead of an expensive hollow spindle motor. A motor can be used.
The polishing wheel 120 is a component that polishes the glass panel 10 through rotational friction by contacting the edge of the glass panel 10 while rotating at a high speed. When the point at which the polishing wheel 120 contacts the edge of the glass panel 10 is defined as a polishing point P (FIG. 2), the precision concentration nozzle 140, which will be described later, intensively injects polishing water toward the polishing point P. As a result, the polishing quality can be improved.

  As shown in FIG. 4, the polishing apparatus according to the present embodiment is provided with two nozzles, that is, a vertical injection nozzle 130 and a precision concentration nozzle 140. The two nozzles 130 and 140 are both coupled to the base frame 100 so as to be rotatable along the outer peripheral portion of the polishing wheel 120. The detailed configuration of the nozzle rotation mechanism will be described later.

The vertical spray nozzle 130 is a nozzle that is coupled so as to be located above the glass panel 10, that is, above the glass panel 10, and sprays polishing water downward from the top of the glass panel 10. The sprayed polishing water is supplied via a polishing water supply unit 160 described later.
In this way, a kind of “water curtain” is formed on the glass panel 10 in the vicinity of the polishing point P by spraying the polishing water downward from the upper part. Such a water curtain plays a role of preventing fume generated in the polishing process from scattering to the glass panel 10 side, preventing damage to the panel in the polishing process, and improving the polishing quality.
The vertical injection nozzle 130 according to the present embodiment plays a role of injecting the polishing water from the top to the bottom, but is not necessarily limited to a nozzle that strictly injects the polishing water in the vertical direction in a mathematical sense. Absent.

The precision concentration nozzle 140 is a nozzle that is installed so as to be located on the side of the glass panel 10, that is, on the side, and injects polishing water in the lateral direction toward the polishing point P from the front of the polishing wheel 120. The sprayed polishing water is supplied via a polishing water supply unit 160 described later.
In this way, by precisely and intensively spraying the polishing water from the side toward the polishing point P, the polishing water is not wasted more than necessary and is used efficiently. In other words, the supplied polishing water is sufficiently supplied only to the polishing point P site, the soft polishing quality can be maintained, and the running cost can be minimized.

  As described above, the polishing apparatus according to the present embodiment includes two nozzles that perform mutually complementary roles, that is, the vertical injection nozzle 130 and the precision concentration nozzle 140, so that the panel in the polishing process. In this case, the polishing water is more efficiently used, the polishing quality is improved, and the polishing cost is reduced.

On the other hand, as shown in FIG. 2, the polishing wheel 120 advances the polishing while repeating the linear movement and the curved surface portion rotation along the edge of the glass panel 10. The position of each of the nozzles 130 and 140 is controlled by a method of moving to an appropriate position while rotating using an electric device.
That is, the rotary nozzle driving unit 150 according to the present embodiment rotates the two nozzles 130 and 140 around the polishing wheel 120, and each nozzle moves to a predetermined injection position. The rotary nozzle driving unit 150 is also configured by a rotating mechanism such as an electric motor, a pulley, and / or a gear that can rotate the two nozzles 130 and 140.

The positions of the two nozzles 130 and 140 differ depending on the position of the polishing wheel 120 with respect to the glass panel 10, but in the case of the vertical injection nozzle 130, a position slightly inside the glass panel 10 from the polishing point P. The above-mentioned “water curtain” is formed by being positioned at the upper part of the glass panel 10.
In the case of the precision concentrated nozzle 140, it is located slightly in front of (in front of) the polishing wheel 120 from the movement trajectory of the polishing wheel 120, but by being located at a point where the polishing point P can be seen, The polishing water is sprayed intensively.

Thus, the position where each nozzle is located is determined by the relative position of the polishing wheel 120 with respect to the glass panel 10, and the rotary nozzle driving unit 150 according to the present embodiment is independent of the rotation of the polishing wheel 120. Thus, using a separate electric motor, each nozzle rotates along the outer periphery of the polishing wheel 120 and plays a role of being positioned at the determined point.
Information about the relative position of the polishing wheel 120 with respect to the glass panel 10 to be polished is derived from data on the panel shape input in advance before polishing, or is derived by a method of sensing in real time during the polishing process. It can be derived by various methods obvious to those skilled in the art.

Hereinafter, the configuration of the rotary nozzle driving unit 150 according to the present embodiment will be described in more detail.
In the present embodiment, since the two nozzles 130 and 140 are configured to rotate around the grinding wheel 120, as shown in FIG. 5 which is a longitudinal sectional view of FIGS. A configuration in which two donut-shaped (ring-shaped) members are coupled rotatably to each other is applied.
That is, the donut-shaped first member 152 is coupled to the base frame 100 so as to be positioned on the outer peripheral portion of the polishing wheel 120, and the donut-shaped second member 154 is rotatably coupled to the outer peripheral portion of the first member 152. Thus, a nozzle rotation mechanism can be configured.

Since the second member 154 is rotatably coupled to the first member 152, the inner diameter of the second member 154 is made to match the inner diameter of the second member 154 and the outer diameter of the first member 152. The first member 152 is coupled so as to be in contact with the outer peripheral surface, and a bearing is interposed at the coupling portion.
In this manner, by connecting the two nozzles 130 and 140 to the second member 154 in a state where the member (second member 154) that can rotate along the outer peripheral portion of the grinding wheel 120 is provided. The two nozzles 130 and 140 can also rotate along the outer periphery of the grinding wheel 120.
The rotary nozzle driving unit 150 according to the present embodiment is connected to the second member 154, and by rotating the second member 154, two nozzles 130 and 140 are required along the outer peripheral portion of the polishing wheel 120. Will rotate to the position.

  As described above, the rotary nozzle driving unit 150 according to the present embodiment is configured by an electric motor, a pulley, a gear, and the like. However, in the case of the embodiment illustrated in FIG. By connecting the member 154 with a pulley, the driving force from the electric motor is applied, the second member 154 rotates around the first member 152, and as a result, the two members coupled to the second member 154 The nozzles 130 and 140 rotate along the rotary nozzle driving unit 150.

On the other hand, polishing water is supplied to the two nozzles 130 and 140 according to the present embodiment via the polishing water supply unit 160. As described above, the two nozzles 130 and 140 according to the present embodiment move to an appropriate position while rotating along the outer peripheral portion of the polishing wheel 120. In this way, the nozzle is the polishing wheel. If the periphery of 120 is rotated, a twisting problem occurs due to a method in which a hose for supplying polishing water surrounds the spindle motor.
In order to prevent such a twisting problem, a hollow spindle motor is used and a polishing water injection hose is connected through a cavity in the center of the spindle motor. However, the hollow spin motor is expensive and causes a vibration problem. There was a limit.

The polishing apparatus according to this embodiment is characterized in that a polishing water supply unit 160 that does not cause a twisting problem of the polishing water injection hose without using a hollow spindle motor is configured.
That is, as can be seen from FIG. 6 showing the enlarged “A” portion of FIG. 5, the polishing water supply port 162 is drilled in the first member 152, and along the outer peripheral edge (periphery) of the first member 152, The polishing water supply channel 164 is formed in an indented manner, and the polishing water supply channel 164 is exposed on the outer peripheral surface (peripheral surface) of the first member 152.
The polishing water supply port 162 and the polishing water supply channel 164 are fluidly connected so that the polishing water injected through the polishing water supply port 162 flows to the polishing water supply channel 164. become. Here, “fluidly connected” means that one polishing water is communicated to flow to the other.

On the other hand, as described above, since the second member 154 is coupled so that the outer peripheral surface of the first member 152 is in contact with the inner peripheral surface of the second member 154, it is exposed to the outer peripheral surface of the first member 152. The polishing water supply channel 164 that is indented in this manner is a channel that is closed along the inner peripheral surface of the second member 154.
By drilling two polishing water discharge ports 166 at predetermined points of the second member 154 according to the present embodiment so that the polishing water discharge ports 166 are fluidly connected to the polishing water supply channel 164, The polishing water injected through the polishing water supply port 162 is discharged through the polishing water discharge port 166.

  As shown in FIG. 6, since the inner peripheral surface of the second member 154 is configured to close the polishing water supply channel 164, the polishing water discharge port 166 according to the present embodiment is connected to the second member. The polishing water discharge port 166 is fluidly connected to the polishing water supply channel 164 by perforating so as to be exposed on the inner peripheral surface of 154 (the portion where the polishing water supply channel 164 is closed). It will be.

Since the two nozzles 130 and 140 are respectively coupled to the second member 154 according to the present embodiment, the point where the two polishing water discharge ports 166 are drilled in the second member 154 is the two nozzles 130. And 140 correspond to the positions where they are combined.
That is, one polishing water discharge port 166 is drilled at a position where the vertical injection nozzle 130 is coupled, so that the vertical injection nozzle 130 is connected to the polishing water discharge port 166, and the other one polishing water discharge port. 166 pierces at a position where the concentrated spray nozzle 140 is coupled, so that the concentrated spray nozzle 140 is connected to the polishing water discharge port 166.

Thus, in the state where the polishing water supply unit 160 is configured, by connecting a polishing water injection hose (not shown) to the polishing water supply port 162, the injected polishing water is supplied to the polishing water supply port 162 and the polishing water supply port 162. The water is supplied to the two nozzles 130 and 140 through the water supply channel 164 and the polishing water discharge port 166, respectively.
Thus, the polishing water can be supplied to the spray nozzle rotating around the polishing wheel 120 without using the hollow spindle motor and preventing the twisting problem of the polishing water injection hose.

On the other hand, as described above, since the first member 152 and the second member 154 according to the present embodiment are mechanically coupled to each other so as to be rotatable, the first member 152 and the second member 154 are coupled to each other. There will be a gap. That is, in the process where the polishing water supplied through the fixed upper supply port 162 (formed on the first member 152) is discharged to the rotating lower discharge port 166 (formed on the second member 154), the first There is a risk of flowing out through the gap between the member 152 and the second member 154.
In order to prevent this, a sealing material 168 may be interposed at a portion where the first member 152 and the second member 154 are coupled according to the present embodiment, as shown in FIG. The sealing material 168 can prevent the polishing water present in the polishing water supply channel 164 from flowing into the gap between the first member 152 and the second member 154.

The polishing apparatus according to the present embodiment does not use a hollow spindle motor and tries to prevent vibration problems in advance. Further, in order to more reliably cope with the vibration generated by the spindle motor 110 and the rotary nozzle driving unit 150 (electric motor), the polishing apparatus according to the present embodiment includes a vibration sensor as shown in FIG. 170 is further provided.
The vibration sensor 170 senses vibration values of the spindle motor 110 and the rotary nozzle driving unit 150 and transmits the vibration values to an inspection unit (not shown), and the inspection unit can record sensing data in real time. The inspection unit includes a processor, a memory, and / or a hard disk that can receive and record sensing data.

In this way, by checking the vibration value generated by the spindle motor 110 and the rotary nozzle driving unit 150 in real time via the vibration sensor 170, it is possible to determine the polishing quality and the presence or absence of nozzle abnormality, and the result As a result, the polishing quality is improved.
As described above, the preferred embodiments of the present invention have been described with reference to the preferred embodiments. However, those skilled in the art will be within the scope of the spirit and scope of the present invention described in the claims. It will be understood that the present invention may be variously modified and changed.

  The glass panel edge polishing apparatus of the present invention can be effectively applied to, for example, a technical field related to a display device.

DESCRIPTION OF SYMBOLS 1 Glass panel 10 Glass panel 11 Polishing wheel 21 Polishing water supply apparatus 100 Base frame 110 Spindle motor 120 Polishing wheel 130 Vertical injection nozzle 140 Precision concentration nozzle 150 Rotary nozzle drive part 152 1st member 154 2nd member 160 Polishing water supply part 162 Polishing water supply port 164 Polishing water supply flow path 166 Polishing water discharge port 168 Sealing material 170 Vibration sensor

Claims (8)

A base frame,
A spindle motor mounted on the base frame;
A polishing wheel that is coupled to the rotating shaft of the spindle motor and rotates at a high speed, contacts the edge of the glass panel at a predetermined polishing point, and performs polishing via rotational friction;
A first nozzle located on the glass panel and coupled to the base frame to rotate an outer periphery of the polishing wheel;
A second nozzle located on the side of the glass panel and coupled to the base frame to rotate the outer periphery of the grinding wheel;
A rotary nozzle driving unit that rotates the first nozzle and the second nozzle along the outer periphery of the polishing wheel independently of the polishing wheel;
A glass panel edge polishing apparatus comprising: a polishing water supply unit that supplies polishing water to the first nozzle and the second nozzle. The first nozzle includes a vertical spray nozzle that sprays the polishing water supplied from the upper part of the glass panel through the polishing water supply unit,
The second nozzle includes a precision concentration nozzle that injects polishing water supplied from the front of the polishing wheel toward the polishing point in a lateral direction through the polishing water supply unit. Item 2. The glass panel edge polishing apparatus according to Item 1.   The rotary nozzle driving unit rotates the first nozzle and the second nozzle so that the first nozzle and the second nozzle move to a predetermined injection position according to the position of the polishing wheel with respect to the glass panel. By doing so, the first nozzle is positioned in the upper part of the glass panel in the vicinity of the polishing point, and the second nozzle is positioned at a point where the polishing point is viewed from the front of the polishing wheel. The glass panel edge polishing apparatus according to claim 2. A first member formed in a donut shape along the outer periphery of the grinding wheel and coupled to the base frame;
A donut-shaped second member rotatably coupled to the outer periphery of the first member;
The first nozzle and the second nozzle are respectively coupled to the second member, and the rotary nozzle driving unit rotates the second member, whereby the first nozzle and the second nozzle are polished. The glass panel edge polishing apparatus according to claim 1, wherein the glass panel edge polishing apparatus rotates along an outer peripheral portion of the wheel. The polishing water supply unit is
A polishing water supply port drilled at a predetermined point of the first member;
A polishing water supply flow path that is fluidly connected to the polishing water supply port and is formed to be exposed to the surface along the outer peripheral edge of the first member;
5. The glass according to claim 4, comprising two polishing water discharge ports perforated at predetermined points of the second member so as to be fluidly connected to the polishing water supply flow path. Panel edge polishing equipment.   The first nozzle is coupled to the second member so as to be connected to the first polishing water discharge port, and the second member is connected to the second polishing water discharge port. 6. The glass panel edge according to claim 5, wherein polishing water is supplied to the first nozzle and the second nozzle by connecting a polishing water injection hose to the polishing water supply port. Polishing equipment.   The sealing material for preventing outflow of polishing water supplied to the polishing water supply flow path is combined with a portion where the first member and the second member are combined. 6. The glass panel edge polishing apparatus according to 6. A vibration sensor for sensing a vibration value generated by the spindle motor and the rotary nozzle driving unit;
An inspection unit that receives a signal in real time from the vibration sensor;
2. The glass panel edge polishing apparatus according to claim 1, wherein the inspection unit uses the value measured by the vibration sensor to determine the polishing quality and the presence or absence of nozzle abnormality.