WO2023074963A1

WO2023074963A1 - Apparatus for processing side surface of display glass substrate

Info

Publication number: WO2023074963A1
Application number: PCT/KR2021/015396
Authority: WO
Inventors: 김유진
Original assignee: 유미크론 주식회사
Priority date: 2021-10-28
Filing date: 2021-10-29
Publication date: 2023-05-04
Also published as: KR20230060840A

Abstract

The present invention relates to an apparatus for processing a side surface of a display glass substrate, the apparatus enabling an optimal processing orientation of a glass substrate introduced to a work position to be maintained when a side surface of the glass substrate to be used for a display is processed into a round shape and, simultaneously, enabling a desired shape to be processed by means of one-time processing using a processing module in which a plurality of processing tools interwork, and thus the productivity of a product with excellent processability is improved, and fine chips generated thereby are removed from a work place with relatively excellent efficiency so that excellent processing quality of the glass substrate can be obtained. To this end, the present invention relates to an apparatus for processing a side surface of a display glass substrate into a round shape if the glass substrate to be processed is introduced onto a worktable, the apparatus comprising: a processing module, which is provided at one side of a place to which the glass substrate is introduced, is provided to be movable back and forth in the length direction of the side surface of the glass substrate to be processed, and has a plurality of processing tools arranged to be aligned in the length direction of the side surface of the glass substrate; a driving means provided at one side of the processing module so that each processing tool in the processing module can rotate; and a processing orientation setting unit provided at the front thereof with respect to the direction in which the processing module proceeds in order to process the glass substrate, so as to maintain the processing position and angle of the glass substrate in an optimal state before the processing tools of the processing module process the glass substrate.

Description

Display glass substrate side processing device

The present invention relates to a display glass substrate side surface processing device.

In detail, the present invention enables the glass substrate introduced into the working position to maintain the optimal processing posture when processing the side of the glass substrate used in the display in a round shape, and at the same time, to a processing module in which a plurality of processing tools are interlocked Product productivity is improved with excellent workability by enabling the processing of the desired shape by one-time processing, and fine chips generated at this time can be removed at the work point with better efficiency to obtain excellent processing quality of the glass substrate. It relates to a display glass substrate side processing device.

The glass substrate used in the display is cut into a specific size by a contact method using a specific cutting tool or a non-contact method using a laser, and the side of the glass substrate cut in this way improves the sharpness of the cutting surface. In order to solve the problem and give a better assembly property, a round is formed with a specific curvature.

Republic of Korea Patent Registration No. 10-0895830 (edge processing method of flat panel display glass substrate, hereinafter referred to as prior invention) performs edge processing of a display glass substrate by primary and secondary processes to form a specific curvature at the corner of the display glass substrate A technique for forming a round portion having is proposed.

The round forming technology of the prior invention is for chamfering the corner of the glass substrate in order to solve the problem that the sharp corner of the glass substrate is very vulnerable to external force. The points are rounded with a curvature of 125 μm or more.

On the other hand, display glass substrates that have recently been released have all sides cut from the original plate rounded to eliminate the sharpness of the cut sides as described above, and to have excellent workability and assembly quality when assembling with other members.

Since it is difficult to form such a side shape of the glass substrate by an apparatus and method for locally processing only the edge as in the prior invention, in the prior art, glass is used in a processing device to round the cut side of the glass substrate. After putting the substrate into the working position, first pre-processing the edge of the cut side, secondly performing round processing on the entire surface of the side, and thirdly polishing the rounded surface to obtain the desired glass substrate The side of the round shape is formed.

At this time, the dedicated processing device is a device that performs processing using a CNC program, and replaces each processing tool for performing primary, secondary, and tertiary processing in a single processing drive unit. Since the operation is performed, at least three processing operations are performed to process the side surface of the glass substrate.

Therefore, the conventional glass substrate processing apparatus is exposed to the problem of reduced productivity due to the delay in working time. A problem of lowering the surface precision occurs.

The present invention was invented to solve the above problems.

Accordingly, the present invention enables the glass substrate introduced into the working position to maintain the optimal processing posture when processing the side of the glass substrate used in the display in a round shape, and at the same time, by a processing module in which a plurality of processing tools are interlocked. Product productivity is improved with excellent processability by enabling processing of the desired shape by one processing, and fine chips generated at this time are removed from the work point with better efficiency to obtain excellent processing quality of the glass substrate. Its purpose is to provide a display glass substrate side processing device.

In order to achieve the above object, the present invention has the following configuration.

In the present invention, when a glass substrate to be processed is put on a work table, in the apparatus for processing the side of a display glass substrate in a round shape, the glass substrate is installed on one side of the input point, a processing module installed to be reciprocally movable in the longitudinal direction of the side of the glass substrate to be processed, and arranged such that a plurality of processing tools are aligned in correspondence with the longitudinal direction of the side of the glass substrate; A driving means installed on one side of the processing module to rotate each processing tool in the processing module; and a processing tool of the processing module installed at the front of the processing module based on the direction in which the processing module proceeds to process the glass substrate. It is configured to include; a processing posture setting unit for maintaining the processing position and angle of the glass substrate in an optimal state before processing the glass substrate.

Here, the processing module includes a frame providing a space in which a plurality of processing tools are rotatably installed, respectively; In the frame, a plurality of processing parts installed to be aligned in a line corresponding to the longitudinal direction of the side of the glass substrate and formed to gradually have a desired round curvature according to the order in which the processing unit contacts the side of the glass substrate to perform processing processing tools; It is configured to include; a power transmission means connected to the rotation axis of each machining tool and the driving means to transmit the driving force of the driving means to each machining tool so that the plurality of machining tools are integrated and rotated simultaneously.

At this time, the power transmission means, a power transmission member installed between the rotation axis of each processing tool, between the rotation axis of one side processing tool and the driving means, respectively; It is configured to include; a shift control unit installed between each of the power transmission members to adjust the rotational speed of a processing tool for processing the side surface of the glass substrate.

In addition, in the processing module, a suction nozzle for sucking in chips generated during side processing of the glass substrate is disposed on both sides where a plurality of processing tools are installed and at a point between each processing tool, and the suction nozzle is placed on a work table or processing module It is configured to be connected to the installed inhaler.

On the other hand, in the processing posture setting unit, the posture holding panel is formed by extending from one side of the frame, and the glass panel side of the posture holding panel maintains the exact position and angle at which the glass panel is to be processed before the glass panel is processed. For this purpose, a guide protrusion is formed to maintain a contact state on at least one side of the left or right side of the processing direction, and a round part is formed at an end of the guide protrusion to which the glass panel initially contacts.

As described above, according to the present invention, the side round portion of the glass substrate can be formed in a single processing by a dedicated processing module in which processing tools are continuously arranged, thereby obtaining an effect of improving product productivity.

In addition, the present invention allows the pre-optimized processing posture to be maintained before processing the glass substrate introduced in an error state, thereby preventing errors during processing and obtaining higher quality processing results. There is an effect.

On the other hand, the present invention allows fine chips generated during processing to be generated and removed from the glass substrate at the same time, so that the processing surface of the side round portion of the glass substrate can be processed with better precision, thereby obtaining a product of better quality. It works.

1 is a perspective view of a processing apparatus according to the present invention.

Figure 2 is a plan view of a processing device according to the present invention.

Figure 3 is a side view of a processing device according to the present invention.

Figures 4a to 4c is an exemplary use state of the processing device according to the present invention.

5 is an exemplary view of a glass substrate processing posture maintenance state of a processing apparatus according to the present invention.

6 is an illustration of an additional embodiment of the present invention;

An embodiment of the present invention as described above will be described in detail with reference to the accompanying drawings.

1 is a perspective view of a processing device according to the present invention, Figure 2 is a plan view of the processing device according to the present invention, Figure 3 is a side view of the processing device according to the present invention.

Referring to the drawings, the processing apparatus according to the present invention is configured by installing a processing module 10, a driving means 20, and a processing posture setting unit 60 on a work table 1. Here, a glass substrate (G) for a display to be processed is put on the work table (1), and the glass substrate (G) is put into a processing work point by a worker, or is operated by a conveyor or a dedicated loader or robot. Can be put into branch.

The processing module 10 is installed on one side of a point where the glass substrate G is input on the work table 1 . At this time, the processing module 10 is installed to be reciprocating (movement for processing and movement for return) in the longitudinal direction of the side of the glass substrate G to be processed, and a driving mechanism composed of an LM guide or a ball lead screw It is installed to be moved by (2). As such, the processing module 10 is composed of a frame 11, a plurality of processing tools 12, and a power transmission means 30.

The frame 11 is configured to provide a space in which a plurality of processing tools 12 (three in the drawing) are respectively rotatably installed. In particular, the frame 11 is configured to reciprocate by being coupled to the aforementioned LM guide or ball lead screw.

The plurality of processing tools 12 are installed in the frame 11 to be aligned in a line corresponding to the longitudinal direction of the side of the glass substrate G. At this time, the plurality of aligned processing tools 12 are formed to have a desired round curvature gradually according to the order in which processing parts for performing processing come into contact with the side surface of the glass substrate G in contact with the glass substrate G.

That is, the processing tool 12, as shown in the exemplary use state of FIGS. 4A to 4C, the first contact processing tool 12 processes the side surface of the glass substrate G with a gentler curvature than the intended round shape , the processing tool 12 at the rear performs processing with an added curvature, and the rearmost processing tool 12 performs processing with the desired curvature.

When processing a desired curvature with a single processing tool 12, such a plurality of processing tools 12 frequently crack or break at the corner point of the glass substrate G cut from the original plate. This is to gradually process the curvature to be processed, to solve the concerns of cracks and breakage due to excessive processing depth, and to solve the concerns of deformation, cracks and breakage due to the deformation of the glass structure at the end due to the heat generated during processing.

The power transmission means 30 is provided with a number of driving means 20 corresponding to the number of processing tools 12 and is installed between each processing tool 12 and each driving means 20, so that each processing tool ( 12) can be installed to be rotated, but preferably, the plurality of processing tools 12 are connected to the rotation shaft 13 of each processing tool 12 and the driving means 20 so that they are integrally rotated simultaneously It is configured to transmit the driving force of the driving means 20 to each of the machining tools 12. To this end, the power transmission unit 30 includes a power transmission member 31 and a shift control unit 32 .

The power transmission member 31 is a plurality of gears or belts installed between the rotation shaft 13 of each processing tool 12 and between the rotation shaft 13 of one side processing tool 12 and the driving means 20, respectively. It is installed by combining a pulley or the like (a belt/pulley example in the drawing).

Basically, when the power transmission member 31 is installed between the rotational shafts 13 of each processing tool 12, the power of each power transmission member 31 installed between the rotational shafts 13 of each processing tool 12 Although the rotational speed of each processing tool 12 can be set differently by changing the transmission ratio, the rotational speed between the rotational axes 13 of each processing tool 12 depends on conditions such as the standard of the glass substrate to be worked on or the set round curvature. The shift control unit 32 is installed in the power transmission member 31 between each of the processing tools 12 so that the power transmission ratio of the installed power transmission member 31 can be adjusted.

Here, the speed control unit 32 can adjust the rotational speed of each processing tool 12 by replacing the power transmission member 31 installed on the rotational shaft 13 of each processing tool 12, or It may be installed by adopting a small variable clutch type that performs an automatic shift function on the power transmission member 31 .

Reference numeral 33 in the drawing denotes a tension control unit selectively installed to adjust the tension for transmitting power within the shift control unit 32.

The driving means 20 is a motor installed on one side of the frame of the processing module 10, and the driving means 20 is provided in a number corresponding to the number of processing tools 12 as described above, and each processing tool 12 ) Correspondingly, power transmission is possible, or a single driving means 20 is coupled to the processing tool 12 on either side of both sides and power transmission is possible, and the power transmission member 31 installed between these processing tools 12 ) may be configured so that a plurality of machining tools 12 can be rotated simultaneously.

On the other hand, the processing module 10 has a suction nozzle for sucking chips generated during side processing of the glass substrate (G) at both sides where a plurality of processing tools 12 are installed and at a point between each processing tool 12 ( 40) is arranged and configured. It is preferable that the suction nozzle 40 has a suction hole formed long upwards and downwards in the drawing so that chips generated during side processing of the glass substrate G can be quickly suctioned over the entire processing range.

In particular, it is natural that the suction nozzle 40 is configured to be connected to a suction device 41 such as a vacuum generator installed on the work table 1 or the processing module 10, and the suction device 41 is connected to a path through which the chips are sucked. It is natural that a collection space for collecting chips is formed and configured.

The processing position setting unit 60 is installed on the front side based on the direction in which the processing module 10 proceeds to process the glass substrate G, and as shown in FIG. 5, the processing tool 12 of the processing module 10 It is configured to maintain the processing position and angle of the glass substrate (G) in an optimal state before processing the glass substrate (G).

Specifically, the processing posture setting unit 60 has a guide protrusion ( 62) is formed and configured.

Here, the guide protrusion 62 is positioned on the glass panel G side (lower side in the drawing) of the posture-holding panel G. Before the glass panel G is processed, the glass panel G is accurately In order to maintain the position and angle, it is formed to maintain contact with at least one side of the left and right sides of the processing direction.

At this time, a round part 63 is formed at the end of the guide protrusion 62 where the glass panel G initially contacts, and the round part 63 does not maintain an optimized position and angle. By guiding the end of (G), the glass panel (G) is guided by the guide protrusion 62 to maintain an optimized processing position and angle.

Such a processing position setting unit 60 can be mainly used when the glass panel G is mainly adsorbed on the vacuum chuck and maintained in a fixed state, and the glass panel G is removed by a dedicated loader or robot. This is to cope with a phenomenon in which an error occurs in the position and angle at the position optimized for processing due to mechanical error or vacuum non-uniformity of the vacuum chuck when inputting.

6 is an exemplary view of an additional embodiment of the present invention.

Referring to the drawings, an additional embodiment of the present invention detects the round shape of the processing surface of the glass substrate (G) processed by the processing module 10 when the side surface of the glass substrate (G) is processed, thereby preventing processing defects. A vision inspection unit 50 for detecting a back in real time is presented.

The vision inspection unit 50 is installed at the end (right end in the drawing) where processing is completed in the frame 11 of the processing module 10 based on the direction in which the side surface of the glass substrate G is processed, and processing It consists of a light transmitting unit 51 and a vision sensor 52 to detect the round shape of the side of the glass substrate G.

The light transmitting part 51 is a laser emitting part for projecting linear light at a specific angle to the side surface of the round glass substrate G, and at this time, the light generated by the laser is generally red.

When the linear light projected by the light transmitting unit 51 is projected in a round shape on the processed side of the glass substrate G, the vision sensor 52 determines whether the projected round shape is formed with a preset round curvature. According to this, it is possible to detect whether or not the processing state is defective.

As the vision inspection unit 50 added in this way can detect defects in the processing result of the glass substrate G in real time, it quickly determines whether or not the processing device is accurately set, and continuously occurs processing defects. Early detection can minimize product defects.

10: processing module 11: frame

12: processing tool 13: axis of rotation

20: driving means 30: power transmission means

31: power transmission member 32: shift control unit

40: suction nozzle 50: vision inspection unit

60: processing posture setting unit

Claims

In the display glass substrate side processing device for processing the side surface of the glass substrate (G) in a round shape when the glass substrate (G) to be processed is put on the work table (1),

The glass substrate (G) is installed on one side of the input point, and is installed to be reciprocating in the longitudinal direction of the side of the glass substrate (G) to be processed, and a plurality of processing corresponding to the longitudinal direction of the side of the glass substrate (G) a processing module 10 arranged such that the tool 12 is aligned;

a driving means 20 installed on one side of the processing module 10 so that each processing tool 12 can be rotated in the processing module 10;

The processing module 10 is installed in the front with respect to the direction in which the glass substrate G is processed, so that the processing tool 12 of the processing module 10 can process the glass substrate G before processing the glass substrate G. Processing position setting unit 60 for maintaining the processing position and angle of (G) in an optimal state; side processing apparatus of a display glass substrate comprising a.
According to claim 1, wherein the processing module (10)

A frame 11 providing a space in which a plurality of processing tools 12 are rotatably installed, respectively;

In the frame 11, the processing unit is installed to be aligned in a line corresponding to the longitudinal direction of the side surface of the glass substrate G, and the processing unit contacts the side surface of the glass substrate G to perform processing. a plurality of processing tools 12 formed to gradually achieve a desired round curvature along the way;

The plurality of machining tools 12 are connected and coupled to the rotation shaft 13 of each machining tool 12 and the driving means 20 so that the plurality of machining tools 12 are integrated and rotate simultaneously, so that the driving force of the driving means 20 is applied to each of the machining tools 12 ) The side processing device of the display glass substrate, characterized in that it comprises a; power transmission means 30 for transmitting to.
The method of claim 2, wherein the power transmission means (30)

Power transmission members 31 installed between the rotational shaft 13 of each processing tool 12 and between the rotational shaft 13 of one side processing tool 12 and the driving means 20, respectively;

A display characterized in that it includes; a shift control unit 32 installed between each of the power transmission members 31 to adjust the rotational speed of the processing tool 12 for processing the side surface of the glass substrate G A side processing device for glass substrates.
The method of claim 2, wherein the processing module (10)

A suction nozzle 40 for sucking in chips generated during side processing of the glass substrate G is disposed on both sides where the plurality of processing tools 12 are installed and at a point between each processing tool 12, and the suction nozzle 40 (40) is a side processing device for a display glass substrate, characterized in that configured to be connected to the inhaler 41 installed on the work table 1 or processing module 10.
The method of claim 2, wherein the processing posture setting unit (60)

At one side of the frame 11, the posture holding panel 61 is formed to extend, and before the glass panel G is processed, the glass panel G is formed on the side of the glass panel G of the posture holding panel G. In order to maintain the correct position and angle to be processed, a guide protrusion 62 is formed to maintain contact with at least one of the left and right sides of the processing direction, and the glass panel of the guide protrusion 62 ( G) side surface processing device of the display glass substrate, characterized in that the rounded portion 63 is formed at the first contact end.