KR100698378B1 - Glass scriber for flat panel display device - Google Patents

Abstract

The present invention relates to a glass scriber for a flat panel display device, and the technical problem to be solved is to accurately scribe the glass to a desired position and size in order to collect a defective region of the glass, which is a component of the flat panel display panel, as a specimen. It's ice.

To this end, the gist of the solution according to the present invention can be reciprocated in the Y-axis direction, can be rotated by a predetermined angle, the glass conveying portion is fixed to the glass, the reciprocating movement in the X-axis direction on the glass conveying portion, Disclosed is a glass scriber for a flat panel display device comprising a glass scribing unit for scribing a glass fixed to a glass conveying unit at a predetermined depth and force.

Glass, Scribing, Diamond Wheel, Servo Motor, Air Cylinder

Description

Glass scriber for flat panel display device

1A, 1B and 1C are an overall plan view, a front view and a side view showing a glass scriber for a flat panel display device according to the present invention.

2A, 2B and 2C are a plan view, a front view and a side view of a Y-axis feeder forming a glass feeder according to the present invention.

3A, 3B, 3C and 3D are a plan view, a front view, a front side view and a rear side view of the belt portion constituting the glass transfer portion of the present invention.

4A, 4B and 4C are cross-sectional views of the glass fixing portion constituting the glass feeder, cross-sectional view taken along line A-A of FIG. 4A and line B-B of FIG. 4A.

5a, 5b and 5c is another sectional view of the glass fixing portion constituting the glass transfer portion of the present invention, C-C line sectional view and a plan view of Figure 5a.

6A, 6B, and 6C are a plan view, a front view, and a side view of an X-axis transfer unit forming a glass scribing unit according to the present invention.

7A and 7B are a plan view and a front view of a scribe line forming portion constituting a glass scribing portion of the present invention.

8A, 8B and 8C are side and front views of a scribe line forming portion forming a glass scribing portion of the present invention.

9A and 9B are perspective views showing an example of glass on which scribing is performed by the apparatus according to the present invention and an example on which braking is performed.

<Description of Symbols for Main Parts of Drawings>

100; Glass scriber for flat panel display devices according to the present invention

110; Glass conveying section 111; Y-axis feeder

111a; Servo motor 111b; Ball screw

111c; Nut block 111d; Guide rail

111e; LM guide 111f; Servo motor bracket

111g; Coupling 111h; Support unit

111i; Sensor 111j; Belt guide

111k; Belt guide bracket 111l; Cable holder

112; Belt portion 112a; Tension block

112b; Belt clamp shaft 112c; Flat belt

112d; Roller shaft 113; Glass fixture

113a; Carriage plate 113b; Direct drive motor

113c; Glass holder 113d; Belt Clamp Support

113e; Middle plate

113f; 113 g of vacuum support plate; Batter Plate

113h; Back hole 113i; Sensor dog

113j; Sensor 113k; Sensor dog

113l; Shock absorber 113m; stopper

120; A glass scribing unit 121; X-axis feeder

121a; Servo motor 121b; Ball screw

121c; Nut block 121d; Guide rail

121e; LM guide 121f; Servo motor bracket

121g; Coupling 121h; Support unit

121i; Cable holder 122; Scribe line formation

122a; Mounting plate 122b; Servo motor

122c; Ball screw 122d; 1st Bearing Base

122e; Bearing cover 122f; 2nd Bearing Base

122 g; Oscillator 122h; Wheel holder

122i; Diamond wheel 122j; Brackets

122k; Coupling 122l; Nut housing

122 m; Sensor 122n; Sensor dog

122o; Sensing member 122p; Air cylinder

122q; Air blower 131; Touch panel

132; Operator box 133; monitor

140; Camera unit 141; Brackets

142; camera

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a glass scriber, and more particularly, to a flat panel display device capable of accurately scribing a glass to a desired position and size in order to collect a defective area of glass, which is a component of the flat panel display panel, as a specimen. Relates to a glass scriber.

In general, a flat panel display device is an image display device that is thinner and lighter than a television or computer monitor employing a CRT. Such flat panel display devices typically include LCD, PDP, FED, ELD, etc., and the structure and manufacturing method thereof are slightly different for each type.

As an example, the structure of the TFT-LCD will be described as a lower glass substrate on which TFTs (thin film transistors) are formed, an upper glass substrate on which color filters are formed, and liquid crystals injected therebetween. Consists of. The TFT serves to transmit and control the electrical signal, and the liquid crystal controls the transmission of light by varying the molecular structure according to the applied voltage. The light so controlled passes through the color filter to produce the desired color and image.

In addition, the TFT-LCD manufacturing method is largely composed of a TFT process, a color filter process, a cell process, and a module process. In the TFT process, very similar to the semiconductor manufacturing process, TFTs are arranged and formed on the lower glass substrate by repeating deposition, photography, and etching. In the color filter step, a color filter is formed on the upper glass substrate. In the cell process, an alignment layer is formed between the lower glass substrate and the upper glass substrate, and the spacers are dispersed and then bonded to each other. After the bonding, the liquid crystal is injected between the upper glass substrate and the lower glass substrate by using a capillary phenomenon, and then the injection hole is sealed. In the module process, various peripheral parts such as a polarizer and a backlight are attached to the flat plate.

On the other hand, such a display panel is subjected to a variety of electrical inspection whether the normal operation before the cell process after the cell process. That is, when various electrical signals are input while the probe pins are electrically connected to the input / output patterns formed on the display panel, the display panel is electrically and visually inspected for proper display operation. This electrical and visual inspection is a full inspection because the above-described display panel is assembled into a product immediately after modularization.

However, it is often recognized that a defect occurs in a predetermined area of the display panel during the inspection process, and such a defect tends to occur repeatedly in the next display panel. In particular, when the cause of the defect originates from manufacturing equipment, the defect repeatedly occurs in the same area.

Therefore, at this time, by scribing and breaking the defective area of the display panel, that is, the glass, and carefully inspecting and analyzing the defective area of the display panel, the process and the apparatus are found.

However, in the past, the scribing and breaking of such defective areas was performed manually by an operator or a researcher using a diamond wheel, so that it was very difficult to accurately scribe and break the defective areas of the display panel. The specimen itself may be broken. Moreover, such display panels are often larger than 30 inches in size, and it is indeed very difficult to manually scribe and break, for example, 1 × 1 mm specimens in such a large area.

In addition, the size of the specimen may be standardized to a predetermined size in advance for the convenience of inspection, even in this case it is actually very difficult to take the specimen to the standardized size manually.

The present invention is to overcome the above-mentioned conventional problems, an object of the present invention can be fixed by vacuum adsorption of glass of various widths, and also by scribing and breaking a specimen having a defect in such glass to the desired width The present invention provides a glass scriber for a flat panel display device.

In order to achieve the above object, the glass scriber for a flat panel display device according to the present invention can be reciprocated in the Y-axis direction, can be rotated by a predetermined angle, and a glass conveying part having a glass fixed thereon, and an X on the glass conveying part. A glass scribing unit capable of reciprocating in the axial direction and scribing the glass fixed to the glass conveying unit at a predetermined depth and force.

Here, the glass conveying unit is a Y-axis conveying unit for reciprocating the glass in the Y-axis direction, a belt portion provided at each end of the Y-axis conveying unit so that particles generated during scribing of the glass do not penetrate into the Y-axis conveying unit; It may be installed on the upper portion of the Y-axis transfer portion, rotatable a predetermined angle, and may include a glass fixing portion coupled to both ends of the belt portion.

The Y-axis feeder may include a servo motor provided on one side, a ball screw provided in the Y-axis direction on the servo motor, a nut block provided on the ball screw, guide rails installed on both sides of the ball screw, and the guide. It includes an LM (LM) guide installed on the rail, the glass block may be installed in the nut block and LM guide.

The belt part may include a tension block provided at opposite sides, a belt clamp shaft coupled with a spring through the tension block, a flat belt having a predetermined area wound around the belt clamp shaft, and a belt clamp shaft. It is installed on one side and includes a roller shaft for passing through the flat belt is supported, one end of the flat belt may be fixed to the glass fixing portion.

In addition, the glass fixing portion is provided on the upper portion of the Y-axis transfer portion, the carriage plate to which the belt portion is connected to opposite sides, a direct drive motor installed on the carriage plate to rotate a predetermined angle, and the direct drive The glass fixing plate may be installed on the rotating shaft of the motor and have a plurality of back holes formed therein.

In addition, the glass fixing plate may include a middle plate coupled to the rotating shaft, a back support plate coupled to an upper surface of the middle plate, and a back plate coupled to an upper surface of the back support plate to seat and fix the glass. .

In addition, when the glass fixing plate has a width of the glass to be seated and fixed smaller than the width of the glass fixing plate, the glass may be seated after the paper is seated on the entire upper surface of the glass fixing plate.

In addition, the glass scribing unit is provided with an X-axis conveying unit for conveying in the X-axis direction, the X-axis conveying unit, a predetermined height can be elevated in the Z-axis direction, a predetermined depth in the glass seated and fixed on the Y-axis conveying unit And a scribe line forming unit forming a scribe line in a line form by force.

In addition, the X-axis transfer unit, a servo motor provided on one side, a ball screw provided in the X-axis direction to the servo motor, a nut block provided on the ball screw, guide rails installed in parallel with the upper and lower parts of the ball screw, the guide An LM guide is installed on the rail, and the nut block and the LM guide may be provided with the scribe line forming unit.

The scribe line forming unit may further include a mounting plate installed at the X-axis transfer unit, a servo motor installed at one side of the mounting plate, a ball screw installed at the servo motor in the Z-axis direction, and a side portion of the ball screw. A first bearing base that is installed side by side, one side is coupled to the ball screw, a bearing cover coupled to the first bearing base as a bearing and lifts a predetermined height in the Z-axis direction, and a second bearing coupled to the bearing cover. It may include a base, a vibrator coupled to the second bearing base as a bearing, and a wheel holder coupled to the lower end of the vibrator for scribing glass.

In addition, a sensing member may be further installed at one side of the vibrator between the second bearing base so as to sense a falling height of the wheel.

In addition, the sensing member may be a load cell.

In addition, an air cylinder may be further installed at the upper end of the vibrator to cushion the height of the wheel holder and adjust the scribing force.

In addition, the wheel holder may be installed to be eccentric diamond wheel to be automatically watched at the bottom.

In addition, an air blower may be further installed at one side of the wheel holder to allow particles generated during scribing of the glass to escape to the outside.

In addition, a camera unit may be further installed at one side of the glass scribing unit to photograph the position of the glass to be scribed.

As described above, the glass scriber for a flat panel display device according to the present invention is precisely controlled by the air cylinder and the depth of the scribe line formed on the glass by the servo motor and the ball screw installed in the Z-axis direction. By forming the scribing line by force, it is possible to obtain a clean specimen free of fine cracks around.

In addition, the glass scriber according to the present invention by removing the particles by air blowing during scribing the glass, the scribing failure by the particles is not generated.

In addition, the glass scriber according to the present invention is formed by the belt portion below the glass transfer portion, particles generated during the glass scribing does not penetrate into the internal device to prevent device failure.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings such that those skilled in the art may easily implement the present invention.

1A, 1B and 1C, an overall plan view, front view and side view of a glass scriber for a flat panel display device according to the present invention are shown.

As shown, the glass scriber 100 for a flat panel display device according to the present invention includes a glass transfer unit 110 and a glass scribing unit 120.

The glass conveying unit 110 is capable of reciprocating a predetermined distance along the Y-axis direction, and is capable of rotating itself at a predetermined angle, and the glass is adsorbed and fixed by a vacuum force thereon. The structure and operation of the glass transfer unit 110 will be described in more detail below.

The glass scribing unit 120 is capable of reciprocating movement in the X-axis direction on the glass transfer unit 110, and lifting and lowering a predetermined distance in the Z-axis direction, and the glass adsorbed and fixed to the glass transfer unit 110. Scribe to the desired depth and force. The structure and operation of the glass scribing unit 120 will be described in more detail below.

In addition, the glass scriber 100 according to the present invention is provided with a touch panel 131 and an operator box 132 on the operator side so that the operator can input and control various setting values, and the various setting values on the upper side. And a monitor 133 so as to check the control state and also the glass state.

Subsequently, the glass conveying unit 110 includes the Y-axis conveying unit 111 for largely reciprocating glass in the Y-axis direction, and the particles generated during the scribing of the glass so that the particles do not penetrate into the Y-axis conveying unit 111. A belt portion 112 provided at both ends of the Y-axis conveying portion 111 and the upper portion of the Y-axis conveying portion 111, is rotatable by a predetermined angle, the belt portion 112 is coupled to the glass go Government 113.

First, the Y-axis feeder 111 forming the glass feeder 110 is shown in FIGS. 2A, 2B, and 2C as a plan view, a front view, and a side view, respectively.

As shown, the Y-axis feeder 111 includes a servo motor 111a, a ball screw 111b, a nut block 111c, a guide rail 111d, and an LM guide 111e. The glass block 113 is installed at the nut block 111c and the EMS guide 111e.

The servo motor 111a is provided at the left end in the Y-axis direction via the bracket 111f.

The ball screw 111b is connected to the servo motor 111a and is provided with a predetermined length in the Y-axis direction. Of course, the ball screw 111b is connected to the servo motor 111a through a coupling 111g. In addition, both ends of the said ball screw 111b are respectively fixed by the support unit 111h.

The nut block 111c is coupled to the ball screw 111b. Therefore, when the ball screw 111b rotates in a predetermined direction according to the operation of the servo motor 111a, the nut block 111c moves a predetermined distance along the Y-axis direction.

The guide rail 111d is spaced apart from the ball screw 111b by a predetermined distance and provided in the Y-axis direction. In addition, two guide rails 111d are installed to move the glass fixing part 113 more stably.

The LM guide 111e is installed at a predetermined distance from each of the guide rails 111d, and is installed in close proximity to the nut block 111c.

On the other hand, the sensor 111i is provided on one side of the guide rail 111d, so that the movement distance in the Y-axis direction of the glass fixing part 113 can be limited. In addition, a belt guide bracket 111k having a belt guide 111j is further provided on both outer sides of the guide rail 111d to guide the flat belt to be described below. In addition, a cable holder 111l for transmitting various control signals to the glass fixing part 113 is provided at one side of the guide rail 111d.

Subsequently, the belt part 112 constituting the glass conveying part 110 is shown in FIGS. 3A, 3B, 3C and 3D as a plan view, front view, front side view and rear side view.

As shown, the belt portion 112 includes a tension block 112a, a belt clamp shaft 112b, a flat belt 112c, and a roller shaft 112d, which is the front and rear of the Y-axis feed portion 111. It is installed in each stage.

The tension block 112a is installed at the front and rear ends of the Y-axis transfer part 111 with springs installed therein.

The belt clamp shaft 112b is coupled to the tension block 112a with a spring interposed therebetween.

The flat belt 112c has a width enough to cover the guide rail 111d, and one end of the flat belt 112c is wound several times while being fixed to the belt clamp shaft 112b. Of course, this flat belt 112c is guided along the above-described belt guide 111j during operation.

The roller shaft 112d is provided to be spaced apart from the belt clamp shaft 112b by a predetermined distance, through which the flat belt 112c passes in a predetermined direction.

Here, the front belt portion 112 has a roller shaft 112d positioned on the tension block 112a, and the rear belt portion 112 has a roller shaft 112d positioned below the tension block 112a. The flat belt 112c passing through each roller shaft 112d remains almost horizontal. In addition, the flat belt 112c from each belt part 112 is fixed to the glass fixing part 113, so that the glass fixing part 113 moves properly to completely move the Y-axis feeding part 111. Covered.

4A, 4B, and 4C, cross-sectional views of the glass fixing part 113 constituting the glass feeder 110, AA cross-sectional view of FIG. 4A, and BB cross-sectional view of FIG. 4A are shown. .

As shown in the drawing, the glass fixing part 113 includes a carriage plate 113a, a direct drive motor 113b, and a glass fixing plate 113c.

The carriage plate 113a is installed on the upper portion of the Y-axis transfer unit 111. More specifically, the carriage plate 113a is installed on the nut block 111c and the L guide 111e constituting the Y-axis feeder 111. In addition, belt clamp support 113d is formed at both ends of the carriage plate 113a, so that the flat belt 112c of the belt portion 112 can be coupled to each other.

The direct drive motor 113b is provided above the carriage plate 113a. As is known, the direct drive motor 113b can directly rotate the glass fixing plate 113c by a predetermined angle so that the direct drive motor 113b can be easily controlled electronically.

The glass fixing plate 113c is coupled to the rotating shaft of the direct drive motor 113b, and a plurality of vacuum holes 113h are formed thereon so that the glass can be sucked and fixed with a vacuum force thereon. Furthermore, the glass fixing plate 113c is coupled to the middle plate 113e coupled to the rotation axis, the backing plate 113f coupled to the top surface of the middle plate 113e, and the top surface of the backing plate 113f. And a vacuum plate 113g on which the glass is seated and fixed.

On the other hand, the glass fixing plate 113c, when the width of the glass to be seated and fixed is smaller than the width of the glass fixing plate 113c, the glass is seated after the paper is seated on the entire upper surface of the glass fixing plate 113c.

Subsequently, referring to FIGS. 5A, 5B, and 5C, another cross-sectional view of the glass fixing part 113 forming the glass feeder 110, a cross-sectional view taken along line C-C of FIG. 5A, and a plan view are shown.

As shown, a sensor dog 113i sensed by the sensor 111i installed on the guide rail 111d of the glass transfer part 110 is installed in the lower direction on the lower surface of the carriage plate 113a, and the glass fixing plate is provided on the upper surface of the glass plate 113a. The sensor 113j is provided to detect the rotation state of the 113c. In addition, a sensor dog 113k is installed on the bottom surface of the glass fixing plate 113c, that is, the middle plate 113e to be detected by the sensor 113j. Further, a shock absorber 113l is installed on an upper surface of the carriage plate 113a to relieve an impact upon rotation of a predetermined angle of the glass fixing plate 113c, and a shock absorber 113l is provided below the glass fixing plate 113c. A stopper 113m is further provided so that the rotation angle is limited by 113l).

Subsequently, the glass scribing unit 120, which is a component of the present invention, is provided in the X-axis conveying unit 121 and the X-axis conveying unit 121 for feeding in the X-axis direction, and is predetermined in the Z-axis direction. It is possible to raise and lower the height, and includes a scribe line forming part 122 for forming a scribe line in a line shape with a predetermined depth and force on the glass seated and fixed on the glass transfer part 110.

First, the X-axis feeder 121 constituting the glass scribing part 120 is shown in FIGS. 6A, 6B, and 6C as a plan view, a front view, and a side view.

As shown, the X-axis feeder 121 includes a servo motor 121a, a ball screw 121b, a nut block 121c, a guide rail 121d, and an L guide 121e, and the nut block 121c. And the scribe line forming unit 122 is installed at the LM guide 121e.

The servo motor 121a is provided at the left end in the X axis direction through the bracket 121f.

The ball screw 121b is connected to the servo motor 121a and has a predetermined length in the X-axis direction. Of course, the ball screw 121b is connected to the servo motor 121a through a coupling 121g. In addition, both ends of the ball screw 121b are respectively fixed by the support unit 121h.

The nut block 121c is coupled to the ball screw 121b. Therefore, when the ball screw 121b rotates in a predetermined direction according to the operation of the servo motor 121a, the nut block 121c moves a predetermined distance along the X-axis direction.

The guide rail 121d is spaced apart from the ball screw 121b by a predetermined distance and provided in the X-axis direction. In addition, two guide rails 121d are installed to move the glass fixing part 113 more stably.

The LM guide 121e is provided to be spaced apart from the guide rails 121d by a predetermined distance, and is installed in close proximity to the nut block 121c.

Of course, the scribe line forming unit 122 is coupled to the nut block 121c and the LM guide 121e, so that the scribe line forming unit 122 is predetermined in the X-axis direction according to the operation of the servo motor 121a. It becomes the state that distance can move.

In the drawing, reference numeral 121i denotes a cable holder in which cables are accommodated to apply various power and control signals to the scribe line forming unit 122.

7A and 7B, a plan view and a front view of the scribe line forming unit 122 constituting the glass scribing unit 120 according to the present invention are shown.

As shown, the scribe line forming part 122 includes a mounting plate 122a, a servo motor 122b, a ball screw 122c, a first bearing base 122d, a bearing cover 122e, and a second bearing base 122f. ), A vibrator 122g and a wheel holder 122h.

First, the mounting plate 122a is mounted on the nut block 121c and the LM guide 121e which are one component of the X-axis feeder 121 as described above.

The servo motor 122b is fixed to the mounting plate 122a through a bracket 122j.

The ball screw 122c is coupled to the servo motor 122b through a coupling 122k in the Z-axis direction.

The first bearing base 122d is provided on the mounting plate 122a in the Z-axis direction parallel to the ball screw 122c.

The bearing cover 122e is coupled to the first bearing base 122d as a bearing and is installed to be elevated in a Z-axis direction by a predetermined height. Moreover, the bearing cover 122e is coupled to the ball screw 122c through the nut housing 122l. Therefore, when the ball screw 122c rotates in a predetermined direction according to the operation of the servo motor 122b, the bearing cover 122e is predetermined based on the first bearing base 122d, that is, in the Z-axis direction. Ascend and climb high.

The second bearing base 122f is provided in the Z-axis direction on the surface of the bearing cover 122e.

The vibrator 122g is coupled to the second bearing base 122f as a bearing so that the predetermined height can be elevated in the Z-axis direction. That is, the vibrator 122g can be lifted by a predetermined height in the Z-axis direction through the first bearing base 122d and the second bearing base 122f, respectively.

The wheel holder 122h is coupled to the lower end of the vibrator 122g to scribe the glass, and the diamond wheel 122i is coupled to the lower end for actual scribing.

In addition, a sensor 122m is installed at one side of the mounting plate 122a, and a sensor dog 122n is installed at one side of the bearing cover 122e to detect the sensor 122m. Of course, the Z-axis lifting height of the bearing cover 122e is limited by the sensor 122m and the sensor dog 122n.

In addition, the mounting plate 122a is further provided with a camera unit 140 so that the operator can easily observe the enlarged state of the glass. That is, the camera unit 140 has a bracket 141 is installed at one end of the mounting plate 122a, the camera 142 is installed through the bracket 141.

8A, 8B, and 8C, a side view and a front view of a scribe line forming unit 122 constituting the glass scribing unit 120 according to the present invention are shown.

As shown in the drawing, the second bearing base 122f, which is one side of the vibrator 122g, is further provided with a sensing member 122o such as a load cell so as to accurately sense the falling height of the diamond wheel 122i. That is, the bearing cover 122e, the second bearing base 122f, the vibrator 122g, etc. are lowered together toward the glass by the operation of the servo motor 122b. When the wheel 122i comes into contact with the glass, the detection is performed. The member 122o senses this and causes the servo motor 122b to stop. Of course, the depth of the scribe line by the wheel 122i is determined by the servo motor 122b.

In addition, an air cylinder 122p is further mounted on the upper end of the vibrator 122g to buffer the height of the wheel 122i and constantly adjust the scribing force.

On the other hand, although not shown in detail in the drawing, the wheel 122i coupled to the wheel holder 122h is eccentrically installed so that the scribing of the glass is automatic and efficient.

Furthermore, a pair of air blowers 122q is further provided on one side of the wheel holder 122h so that particles generated during the scribing of the glass escape outward.

9A and 9B are perspective views showing an example of glass on which scribing is performed by the apparatus according to the present invention and an example on which braking is performed.

As shown, when scribing using the glass scriber 100 according to the present invention, a plurality of scribe lines s can be formed at a desired pitch in the defective region p. Of course, after the scribe line s is formed in this manner, by removing the glass g from the apparatus and breaking, the specimen g 'having a predetermined size can be obtained.

With the above configuration, the glass scriber for a flat panel display device according to the present invention operates as follows.

First, the operator puts the glass for the flat panel display panel on which the defect is generated on the glass fixing part 113. That is, the glass which the defect generate | occur | produces is mounted on the backing plate 113g formed in the uppermost part of the glass fixing plate 113c. If the width of the glass is smaller than that of the backing plate 113g, the vacuum adsorption force is weak and the glass is not adsorbed. Therefore, the glass is placed on the entire upper part of the backing plate 113g and the glass is placed thereon. In this way, the glass on which the defect occurs on the paper is strongly adsorbed and fixed.

Subsequently, the operator operates the touch panel 131 and the operator box 132 to appropriately move the glass feeder 110 in the Y-axis direction, and the glass scribing unit 120 also moves appropriately in the X-axis direction, The camera 142 of the camera unit 140 captures the defective area of the glass so that the image appears on the monitor 133.

In this state, the operator can select the defective area of the glass in one of three modes. For example, the operator may operate the touch panel 131 and the operator box 132 to set alignment marks on the upper left and lower right of the defective area. In addition, the operator can cross mark the defective area directly, and set only offset values for the X and Y axes. In addition, the operator may simply set offset values for the X-axis and the Y-axis without making any mark on the defective area so that the scribing line is formed on the entire glass.

On the other hand, the thickness of the glass is generally about 0.5 to 0.7t, the depth of the scribing line is set to about 0.25t, and the force is set in advance so as to be about 0.45kg.

After all these settings are completed, when an operator commands a scribing command through the touch panel 131 or the operator box 132, a scribing line starts to form on the actual glass.

First, the glass transfer unit 110 operates. That is, the Y-axis feeder 111 constituting the glass feeder 110 operates. More specifically, when the servo motor 111a constituting the Y-axis feeder 111 rotates in a predetermined direction, the ball screw 111b connected thereto via the coupling 111g rotates in the predetermined direction. Therefore, the carriage plate 113a of the glass fixing part 113 fixed to the ball screw 111b through the nut block 111c is gradually moved in the Y-axis direction by the nut block 111c and the L guide 111e. do. Of course, the nut block 111c moves along the ball screw 111b, and the L guide 111e moves along the guide rail 111d.

On the other hand, the belt unit 112 also operates at this time. That is, the flat belt 112c fixed to both ends of the carriage plate 113a prevents external exposure of the glass transfer unit 110. More specifically, one side of the flat belt 112c is released from the belt clamp shaft 112b, and the other side of the flat belt 112c is wound back to the belt clamp shaft 112b. Therefore, the flat belt 112c completely closes the glass conveying part 110 by this operation, so that particles generated during scribing of the glass do not contaminate the glass conveying part 110.

Subsequently, when the glass transfer unit 110 operates, the glass scribing unit 120 also operates together.

First, the X-axis transfer unit 121 operates so that the diamond wheel 122i is positioned on the X-axis of the predetermined region. That is, when the servo motor 121a which comprises the X-axis feed part 121 rotates in a predetermined direction, the ball screw 121b connected to this through the coupling 121g rotates in a predetermined direction. Therefore, the mounting plate 122a of the scribe line forming portion 122 fixed to the ball screw 121b through the nut block 121c is gradually moved in the X-axis direction by the nut block 121c and the EL guide 121e. Move. Of course, the nut block 121c moves along the ball screw 121b, and the L guide 121e moves along the guide rail 121d.

As described above, after the X-axis transfer unit 121 moves to the predetermined region, the scribe line forming unit 122 operates to form a scribe line on the glass.

First, the servo motor 122b fixed to the mounting plate 122a operates. Then, the ball screw 122c mounted on the servo motor 122b rotates in a predetermined direction, and the nut housing 122l and the bearing cover 122e coupled thereto are moved in the Z-axis direction (for example, the lower direction). Move. That is, the bearing cover 122e coupled to the first bearing base 122d as the bearing descends to the lower portion in the Z-axis direction. By this lowering, the second bearing base 122f and the vibrator 122g coupled to the bearing cover 122e are also lowered together.

When the diamond wheel 122i coupled to the lower end of the vibrator 122g comes into contact with the surface of the glass with a predetermined force during the lowering, the operation of the servo motor 122b is stopped, whereby the lowering of the vibrator 122g occurs. Is stopped. That is, a sensing member 122o such as a load cell is installed between the vibrator 122g and the second bearing cover 122e, and the sensing member 122o is in contact with the glass of the diamond wheel 122i. The servo motor 122b is stopped by detecting. Here, the scribe line depth of the glass formed by the diamond wheel 122i is determined by the servo motor 122b.

On the other hand, even when the servo motor 122b is stopped, a constant force is applied from the air cylinder 122p coupled to the upper end of the vibrator 122g toward the vibrator 122g, so that the diamond wheel 122i is always provided. Constant force is provided. That is, since the depth and the force of the scribe line formed on the glass by the servo motor 122b and the air cylinder 122p are provided uniformly and uniformly, a high quality scribe line is formed.

In addition, since the diamond wheel 122i is eccentrically installed in the wheel holder 122h, the diamond wheel 122i is self-aligned and thus prevents a defect of the scribe line.

In addition, since the glass transfer unit 110 is gradually moved in the Y-axis direction during the operation of the diamond wheel 122i, the glass has a scribe line in the Y-axis direction.

Furthermore, after the formation of one scribe line, the vibrator 122g rises by a certain height due to the reverse operation of the servo motor 122b, and the glass transfer unit 110 is operated by the operation of the servo motor 111a. After moving to the position, repeat the above operation.

In addition, after the operation, the vibrator 122g moves again in the predetermined pitch X-axis direction by the operation of the servo motor 121a of the X-axis feeder 121 and repeats the above-described operation.

In addition, during this operation, the air blower 122q installed at both sides of the vibrator 122g blows strong air around the diamond wheel 122i, thereby preventing scribing defects caused by glass particles.

In this way, after a plurality of scribe lines are formed in the Y-axis direction, the glass transfer unit 110 is rotated in a substantially perpendicular direction. That is, by operating the direct drive motor 113b which comprises the glass feed part 110, the glass fixing plate 113c rotates about 90 degrees.

Of course, after the glass fixing plate 113c rotates in a predetermined direction, the Y-axis feeder 111, the X-axis feeder 121, and the scribe line forming part 122 operate together as described above, thereby forming the first Y. A scribe line in the X-axis direction that is perpendicular to the scribe line in the axial direction is formed.

By this operation, a plurality of checkered scribe lines are formed on the glass.

In addition, after such an operation is completed, the vacuum force is released from the glass fixing plate 113c. Therefore, the operator can easily take out the glass from the glass fixing plate 113c, and then break the scribe line to the boundary, thereby securing a specimen having a predetermined width.

As described above, the glass scriber for a flat panel display device according to the present invention is precisely controlled by the air cylinder and the depth of the scribe line formed on the glass by the servomotor and the ball screw installed in the Z-axis direction, and is always constant by the air cylinder. By forming a scribing line with force, it is possible to obtain a clean specimen free of fine cracks around.

In addition, the glass scriber according to the present invention eliminates particles by air blowing during scribing the glass, so that scribing defects caused by the particles do not occur.

In addition, the glass scriber according to the present invention is formed by the belt portion below the glass transfer portion, particles generated during the glass scribing does not penetrate into the internal device to prevent device failure.

What has been described above is just one embodiment for carrying out the glass scriber for flat panel display apparatus according to the present invention, and the present invention is not limited to the above-described embodiment, as claimed in the following claims. Without departing from the gist of the invention, anyone of ordinary skill in the art to which the present invention will have the technical spirit of the present invention to the extent that various modifications can be made.

Claims (16)

A Y-axis feeder for reciprocating the glass in the Y-axis direction, belts provided at both ends of the Y-axis feeder so that particles generated during scribing of the glass do not penetrate the Y-axis feeder, and the Y-axis feeder A glass conveying part installed at an upper side, rotatable by a predetermined angle, and having a glass fixing part coupled to both ends of the belt part; A glass scribing unit capable of reciprocating in the X-axis direction on the glass feeder, and scribing the glass fixed to the glass feeder with a predetermined depth and force, The belt unit includes a tension block provided at opposite sides, a belt clamp shaft coupled to each tension block with a spring interposed therebetween, a flat belt having a predetermined area wound around the belt clamp shaft a plurality of times, and each belt clamp shaft. And a roller shaft installed at one side of the roller to allow each of the flat belts to pass therethrough, and one end of each of the flat belts is fixed to the glass fixing part. delete According to claim 1, wherein the Y-axis transfer unit A servo motor installed at one side; A ball screw mounted to the servo motor in the Y-axis direction; A nut block installed on the ball screw; Guide rails installed side by side on both sides of the ball screw; An LM guide installed on the guide rail, And a glass fixing part installed on the nut block and the LM guide. delete The method of claim 1, wherein the glass fixing portion A carriage plate installed at an upper portion of the Y-axis transfer unit and connected to the belt unit at opposite sides; A direct drive motor installed at an upper portion of the carriage plate, the rotating shaft rotating at a predetermined angle; And, A glass scriber for a flat panel display device, comprising: a glass fixing plate provided on a rotating shaft of the direct drive motor and having a plurality of back holes formed therein. The method of claim 5, wherein the glass fixing plate A middle plate coupled to the rotation shaft; A backing support plate coupled to an upper surface of the middle plate; And, Glass scriber for a flat panel display device characterized in that it comprises a back plate coupled to the top surface of the back support plate, the glass is seated and fixed. The flat panel display device of claim 5, wherein the glass fixing plate has a glass seated thereon after paper is seated on the entire upper surface of the glass fixing plate when the width of the glass to be seated and fixed is smaller than that of the glass fixing plate. Glass scriber. The method of claim 1, wherein the glass scribing unit An X-axis feeder for feeding in the X-axis direction; And, It is installed on the X-axis transfer unit, and can move up and down a predetermined height in the Z-axis direction, and comprises a scribe line forming unit for forming a line-shaped scribe line with a predetermined depth and force on the glass seated and fixed on the Y-axis transfer unit A glass scriber for a flat panel display device, characterized in that. The method of claim 8, wherein the X-axis transfer unit A servo motor installed at one side; A ball screw mounted to the servo motor in an X-axis direction; A nut block installed on the ball screw; Guide rails installed in parallel with upper and lower portions of the ball screw; An LM guide installed on the guide rail, The nut block and the LM guide glass scriber for a flat panel display device, characterized in that the scribe line forming unit is installed. The method of claim 8, wherein the scribe line forming portion A mounting plate installed on the X-axis transfer unit; A servo motor installed at one side of the mounting plate; A ball screw installed in the Z-axis direction of the servo motor; A first bearing base installed side by side of the ball screw; One side is coupled to the ball screw, the bearing cover is coupled to the first bearing base by a bearing to move a predetermined height in the Z-axis direction; A second bearing base coupled to the bearing cover; A vibrator coupled to the second bearing base as a bearing; And, And a wheel holder coupled to the lower end of the vibrator for scribing glass. The glass scriber of claim 10, wherein a sensing member is installed at one side of the vibrator to detect a falling height of the wheel. 12. The glass scriber of claim 11, wherein the sensing member is a load cell. The glass scriber of claim 10, wherein an air cylinder is further installed at an upper end of the vibrator to cushion the height of the wheel holder and to adjust the scribing force. The glass scriber of claim 10, wherein the wheel holder is eccentrically installed so that the wheel holder can be self-aligned at a lower end thereof. The glass scriber of claim 10, wherein an air blower is further installed at one side of the wheel holder to allow particles generated during scribing of the glass to escape to the outside. The glass scriber of claim 1, wherein a camera unit is further installed at one side of the glass scribing unit to photograph the position of the glass to be scribed.

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