KR101472294B1 - Method and apparatus for processing panel - Google Patents

Abstract

Disclosed is an apparatus and a method for processing a panel. The method in which the panel is transferred in a predetermined progress direction to process a corner of the panel, includes: a step (a) in which a first panel is loaded on a first table; a step (b) in which the first table moves to process a front corner of the first panel; a step (c) in which the first panel is unloaded from the first table to load the first panel on a second table; a step (d) in which a second panel is loaded on the first table; a step (e) in which the second table moves to process a rear corner of the first panel; and a step (f) in which the first table moves to process a front corner of the second panel. According to the method, one polishing device is used, and two polishing tables are provided. Thus, while the panel is loaded on one polishing table and then a corner cut process (a rear side) is performed to the panel, a new panel is loaded on the other polishing table and then a corner cut (a front side) is performed to the new panel. Thus, the polishing process may be effectively divided to reduce entire tack time and also costs because a separate polishing device is unnecessary.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001]

The present invention relates to a panel processing method and a processing apparatus.

Flat panel displays such as liquid crystal display (LCD) panels and the like use flat panel glass panels. In the case of solar cells, transparent panels such as glass materials are used as substrates. Accordingly, a glass panel is cut in the process of manufacturing an LCD panel or a solar cell, and a process of polishing the cut edges and corner portions is performed.

In order to polish the edges and corners of the glass panel in this way, conventionally, a glass panel is loaded on the polishing table and the polishing table is moved along the transfer line so that the panel passes through the edge / corner polishing wheel, Polishing the edge / corner, and then unloading the panel mounted on the polishing table.

In the case of conventional corner polishing, the lower wheel (or the upper wheel) of the polishing wheels disposed in the upper and lower two rows is raised (or lowered) for corner cutting and is then waiting for a front corner cut and is lowered After completing the edge polishing, it was operated in such a manner that the rear corner cut was performed by rising (or descending) again.

That is, in the case of the conventional corner polishing, it is necessary to polish all the corners of the panel to be processed, and it is not possible to process the other panels during that time, which increases the overall tact time.

In order to compensate for this, two sets of polishing equipment are installed. When the front corner cutting of one of the panels is completed by the first polishing equipment, the rear corner cutting is performed by transferring the front corner cutting to the second polishing equipment, A method of loading a new panel into the first polishing equipment was found. However, this method has a problem in that the cost is increased because a polishing apparatus must be newly added.

The above-described background technology is technical information that the inventor holds for the derivation of the present invention or acquired in the process of deriving the present invention, and can not necessarily be a known technology disclosed to the general public prior to the filing of the present invention.

Korean Patent Laid-Open Publication No. 2002-0054872 discloses a technique in which three grinding stones are arranged between four grinding tables to improve the tact time by polishing four sides and corner portions of the liquid crystal panel, -0013010 discloses a technique of grinding four corners by loading a glass substrate onto a traveling body, polishing four edges of the glass substrate, and housing the substrate by suction means.

Patent Document 1: Korean Patent Publication No. 2002-0054872 Patent Document 2: Korean Patent Laid-Open No. 10-2009-0013010

SUMMARY OF THE INVENTION The present invention provides a panel processing method and a machining apparatus which can effectively reduce the tact time and the cost of the panel polishing process, thereby eliminating the need to add polishing equipment.

Other objects of the present invention will become readily apparent from the following description.

According to an aspect of the present invention, there is provided a method of processing a corner by transferring a panel in a predetermined traveling direction, comprising the steps of: (a) loading a first panel onto a first table; (b) (C) unloading the first panel from the first table and loading the second panel onto the second table, (d) loading the second panel onto the second table, (E) moving the second table to machine the corners behind the first panel, and (f) moving the first table to machine the corners in front of the second panel Is provided.

Further comprising the step of aligning the first panel to a predetermined reference position between step (a) and step (b), wherein between step (e) and step (f) In the first embodiment.

Steps (b), (e) and (f) may be performed by moving the panel and / or the grinding wheel so that the corners abut the grinding wheel.

Step (c) may include picking up the first panel from the first table and seating it on the second table.

Step (d) may be undertaken while step (c) is being performed, and steps (d) and (e) may be performed independently of each other without precedence. After step (e), (g) unloading the first panel from the second table and taking it out.

According to another aspect of the present invention, there is provided a display apparatus including a first table and a second table for respectively loading panels to be subjected to corner machining, a picker for unloading the panel from the first table, a conveying unit for moving the table so that the panel is transported in a predetermined traveling direction; and a polishing wheel for contacting the corners in the process of transporting the panel so that the corners are processed.

And an align camera for photographing an image related to the alignment state of the panel so that the panel loaded on the first table is aligned with a predetermined reference position.

While the picker unloads the front corners of the panels from the first table and loads them onto the second table, the other table can be loaded on the first table.

The first table and the second table may be independently loaded to move the panels so that the corners of the respective panels are processed, and the panel loaded on the second table may be unloaded from the second table after the cornering is completed.

Other aspects, features, and advantages will become apparent from the following drawings, claims, and detailed description of the invention.

According to the embodiment of the present invention, a new panel is loaded on another polishing table while one polishing apparatus is used and two polishing tables are used to load a panel on one polishing table to perform a corner cut (rear) By performing corner cutting (forward), it is possible to effectively distribute the polishing process work, shorten the overall tact time, and save costs by eliminating the need to add additional polishing equipment.

1 is a flowchart showing a panel processing method according to an embodiment of the present invention;
2A to 2F are views illustrating a panel processing process according to an embodiment of the present invention.
3 is a perspective view showing a panel processing apparatus according to an embodiment of the present invention;

BRIEF DESCRIPTION OF THE DRAWINGS The present invention is capable of various modifications and various embodiments, and specific embodiments are illustrated in the drawings and described in detail in the detailed description. It is to be understood, however, that the invention is not to be limited to the specific embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

The terms first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another.

The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the terms "comprises" or "having" and the like are used to specify that there is a feature, a number, a step, an operation, an element, a component or a combination thereof described in the specification, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. Referring to the accompanying drawings, the same or corresponding components are denoted by the same reference numerals, .

FIG. 1 is a flowchart showing a panel processing method according to an embodiment of the present invention, and FIGS. 2A to 2F are diagrams illustrating a panel processing process according to an embodiment of the present invention. Referring to FIGS. 2A to 2F, panels 10 and 10 ', a first table 100, a second table 110, a polishing wheel 130, and an alignment camera 140 are shown.

The present embodiment relates to a panel processing method for quickly processing corners of panel members such as glass panels without adding equipment, that is, for efficient corner chamfering.

Conventionally, a general process of loading and aligning panels on a polishing table and performing corner cutting for corner cutting of the panel has been performed. In this case, in order to reduce the corner cutting time (tact time), the polishing equipment must be increased, so that the cost increase is inevitable in order to reduce the machining time.

Thus, the panel processing method according to the present embodiment can effectively reduce the corner cutting process work of each panel by appropriately controlling the movement of each polishing table by adding a polishing table instead of increasing the number of separate polishing machines, And the effect of shortening the tact time of panel corner cut processing.

The second table 110 according to the present embodiment is added in place of adding the entire polishing apparatus. Instead of simply adding one polishing table, the remaining portion of the polishing apparatus to be added except for the polishing table is omitted And the polishing time is shortened by efficiently controlling the polishing table.

That is, in the present embodiment, two tables are arranged in one polishing machine, the panel is loaded on the first table 100 to perform corner cutting in the first direction, and then the panel is moved to the second table 110 ), And a corner cutting process is performed in the second rear.

After moving the panel to the second table 110, the first table 100 can return to the initial position and load a new panel, while the second table 110 performs the above-described rear corner cutting can do.

As described above, the first table 100 and the second table 110 move to the polishing unit (polishing wheel 130) with a time lag, respectively, so that the front and rear corner cutting operations can be performed respectively through the secondary, In the process, a high-precision control technique may be required to avoid mutual interference between the two tables.

In order to perform the panel processing method according to this embodiment, the panel to be processed 10 is first loaded on the first table 100 as shown in FIG. 2A (S100). The process of loading the panel 10 may include a process of placing the panel 10 on the first table 100 and fixing the panel 10 to the table by vacuum adsorption or the like.

The loaded panel 10 must be positioned to exactly fit a predetermined reference position and a process for aligning the loaded panel 10 as shown in Figure 2B may be performed for this purpose ).

In order to align the panel 10, the camera 140 obtains information on the current position of the panel 10 by photographing an align mark on the panel 10, compares the information with a preset reference position And the panel 10 can be positioned at the reference position by moving and / or rotating the table by the derived difference.

After the panel 10 is aligned, the first table 100 is moved as shown in FIG. 2C to perform corner cutting in front of the panel 10 (S200).

2A to 2F, when the carried panel 10 is moved in a predetermined traveling direction (the 'Y' axis direction in FIG. 2A) while performing corner cutting processing and then taken out of the panel 10, Both corners located on the front side of the corner are referred to as the 'front' corner, and those located on the rear side of the corner are referred to as the 'rear' corner.

When the panel 10 is moved in such a manner that the corner is in contact with the grinding wheel 130 for corner cutting (the grinding wheel 130 is fixed at a predetermined position), for the front corner cutting, The corner of the panel 10 may be brought into contact with the grinding wheel 130 and the panel 10 may be moved backward to allow the corner of the panel 10 to contact the grinding wheel 130 have.

On the other hand, when the grinding wheel 130 is moved so that the grinding wheel 130 contacts the corner of the panel 10 for corner cutting (the panel 10 is fixed at a predetermined position), for the front corner cutting The grinding wheel 130 is moved backward so that the grinding wheel 130 contacts the front corner of the panel 10 and the grinding wheel 130 is moved forward for the rear corner cutting, So that it can be brought into contact with the rear corner of the body 10.

In addition, a corner cut may be performed by arranging the grinding wheel above (or below) the panel. In this case, the grinding wheel may be lowered (or raised) for corner cutting so that the grinding wheel contacts the corner of the panel Corner cut processing can be performed by moving the panel and / or the polishing wheel in various ways.

After the front corner cutting of the panel 10 is completed, the panel 10 is unloaded from the first table 100 and loaded onto the second table 110 as shown in FIG. 2D (S300).

In order to unload and load the panel 10 from the table, a picker may be installed which moves in the proceeding direction from above the table as shown in Fig. 3. In this case, The process of picking up the panel 10 from the table 100 and picking up the panel 10 from the picker 100. The loading process of the panel 10 includes a process of placing the picked up panel 10 on the second table 110 .

The panel 10 loaded on the second table 110 is in a state in which the front corner cut has been completed so that the rear corner is brought into contact with the polishing wheel 130 for rear corner cutting processing, The panel 10 and / or the grinding wheel 130 are moved (S500).

On the other hand, while the panel 10 is loaded on the second table 110 to perform corner processing, the first table 100 loads the new panel 10 'to be processed again as shown in FIG. 2D (S400).

The step S400 of loading the new panel 10 'in the first table 100 is started while the step S300 of unloading the panel 10 in which the front corner cutting is completed is performed from the first table 100 .

That is, when the panel 10 is unloaded from the first table 100, the first table 100 can be immediately moved to the initial position to load the new panel 10 ' The panel 10 which has been unloaded from the second table 110 can be loaded into the second table 110. [

Thus, by controlling the first and second tables 100 and 110 to move respectively, it is not necessary to place the processing for the other panel in the wait state until the corner cut processing for one panel is completed, When the front corner cutting for the panel 10 is completed, the panel 10 is moved to another table, and the new panel 10 'is immediately loaded, so that the corner machining can be started and the tact time for corner machining can be shortened .

When a new panel 10 'is loaded in the first table 100, a process of aligning the loaded panel 10' to the reference position as shown in FIG. 2E may be performed (S410).

When the alignment of the panel 10 'newly loaded on the first table 100 is completed, the first table 100 is moved (or the polishing wheel 130 is moved) as shown in FIG. 2F, The front corner of the panel 10 'is processed (S600).

At this time, rear corner processing of the panel 10 loaded on the second table 110 has already been completed. Therefore, the panel 10 which has been loaded on the second table 110, that is, the panel 10 in which both the front and rear corners are completely processed, is unloaded from the second table 110 as shown in FIG. 2F S510). As a result, cornering for one panel 10 can be completed.

The steps S400 and S600 of loading the new panel 10 'into the first table 100 to process the front corner include steps of processing the rear corner of the panel 10 loaded on the second table 110 S500 of FIG.

That is, the first table 100 can load the new panel 10 'while loading the panel 10 (the front corner cut is completed) in the second table 110, and the second panel 110' The first table 100 can perform the operation of aligning the new panel 10 'while the rear corner processing of the loaded panel 10 proceeds.
In addition, while the second table 110 moves, the front corner of the panel 10 'newly loaded on the first table 100 can be processed while unloading the panel 10 having completed the corner processing. In other words, as shown in Fig. 1, the front corner machining (S600) of the newly loaded panel 10 'is performed before the step S510 of unloading the panel 10 having completed the corner machining is completed .

Thus, by operating the first and second tables 100 and 110 independently of each other, corner machining for two panels can be performed without waiting time (or with minimal waiting time), thereby shortening the overall tact time can do.

In summary, in the present embodiment, the loaded panel is loaded and aligned on the first table 100, the front corner cutting operation is performed by the grinding wheel 130, and the front panel is moved to the second table 110, , The polishing cloth is brought into contact with the grinding wheel 130 again to perform the rear corner cutting work and then discharged. In the meantime, the first table 100 loads a new panel again and proceeds to a subsequent process.

Therefore, in the present embodiment, since corner processing is started for a new panel during corner processing for one panel, the waiting time can be reduced.

3 is a perspective view showing a panel processing apparatus according to an embodiment of the present invention. 3, the panels 10 and 10 ', the first table 100, the second table 110, the transfer unit 120, the polishing wheel 130, the alignment camera 140, the picker 150, Are shown.

This embodiment relates to a panel processing apparatus capable of performing the panel processing method described above.

The panel processing apparatus according to the present embodiment may be constituted by a first table 100, a second table 110, a picker 150, a transfer unit 120, and a grinding wheel 130.

The first and second tables 100 and 110 are components that load and move the panels 10 and 10 'to be subjected to cornering, respectively. By optimally controlling the two tables, cornering Can be efficiently performed as described above.

The picker 150 is a component that picks up the panel 10 from the table and places it on another table. The picker 150 picks up the panel 10 from which the front corner has been cut from the first table 100 And loading (loading) the second table 110 onto the second table 110.

The transfer unit 120 is a component that moves the table in the moving direction (Y-axis direction) and consequently the panel 10 loaded on the table is moved along the moving direction. The LM (linear motor), the ball screw ), A driving motor, a guide rail, and the like, in order to linearly move an object (table).

The grinding wheel 130 is a component that contacts the corners of the panel 10 and polishes the corners. For example, a disc-shaped grinding wheel may be used as the grinding wheel 130 according to the present embodiment, And the corners of the panel 10 to be conveyed are brought into contact with the outer circumferential surface of the grinding wheel so as to be polished so that the corners can be processed into a desired shape and angle.

Meanwhile, as described above, a process of aligning the panel 10 to the reference position may be preceded prior to performing the corner cut processing for the panel 10. For this purpose, in the panel processing apparatus according to the present embodiment, (140) may be further provided.

When the panel 10 'is loaded in the first table 100, the aligning camera 140 acquires an image related to the current alignment state of the panel 10' by photographing the alignment marks displayed on the panel 10 ' Can play a role.

The current position of the panel 10 'can be read from the image photographed by the camera 140, the difference between the current position of the read panel 10' and the preset reference position is calculated, As described above, the panel 10 'can be positioned at the reference position by moving and / or rotating the panel 10' so that the difference is corrected.

On the other hand, in order to optimize cornering of the panel using the panel processing apparatus according to the present embodiment, it is possible to control the two tables to move without waiting time.

For example, while the picker 150 unloads the corners of the front panel 10 from the first table 100 and loads the second table 110 into the second table 110, the first table 100 moves to the initial position So as to control the loading of the new processing target panel 10 '.

The first table 100 and the second table 110 can be moved independently to load the panels 10 and 10 'so that the corners of the panels 10 and 10' are processed. The first table 100 can perform the operation of aligning the new panel 10 'while the rear corner processing of the panel 10 loaded on the first table 110 is proceeding, and the second table 110 moves, The first table 100 can perform the front corner processing of the newly loaded panel 10 'while unloading the processed panel 10.

The panel 10 is unloaded from the second table 110 and taken out after the cornering of the panel 10 loaded on the second table 110 is completed and the front corner cut The completed panel (the panel that was loaded into the first table 100) 10 'can be loaded again.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention as defined in the appended claims. It will be understood that the invention may be varied and varied without departing from the scope of the invention.

10, 10 ': panel 100: first table
110: second table 120:
130: Polishing wheel 140: Aligning camera
150: Picker

Claims (11)

A method of processing a corner by transferring a panel in a predetermined traveling direction,
(a) loading a first panel onto a first table;
(b) moving the first table, moving the grinding wheel so that the front corner of the first panel abuts the grinding wheel, and performing a corner cutting process on the front corner of the first panel;
(c) unloading the first panel from the first table and loading the second panel into the second table;
(d) loading a second panel onto the first table;
(e) moving the second table, moving the grinding wheel so that a rear corner of the first panel abuts the grinding wheel, and performing a corner cutting process on the rear corner of the first panel ;
(f) moving the first table and moving the grinding wheel so that a front corner of the second panel abuts the grinding wheel, and performing a corner cutting process on a corner in front of the second panel ; And
(g) unloading the first panel from the second table and carrying it out,
The step (d) is carried out while the step (c) is being performed,
Wherein step (d) and step (e) are performed independently of each other,
Wherein the step (f) is performed before the step (g) is completed.
The method according to claim 1,
Further comprising, between the step (a) and the step (b), aligning the first panel to a predetermined reference position,
Further comprising, between step (e) and step (f), aligning the second panel to the reference position.
delete The method according to claim 1,
Wherein said step (c) comprises picking up said first panel from said first table and seating said first panel on said second table.
delete delete delete An apparatus for performing the panel processing method of claim 1,
The first table and the second table each loading a panel to be subjected to corner machining;
A picker for unloading the panel from the first table and loading the panel onto the second table;
A transfer unit for moving the first and second tables to transfer the panel in a predetermined traveling direction;
And a grinding wheel that contacts the corners and processes the corners in the process of transferring the panel.
9. The method of claim 8,
Further comprising an align camera for photographing an image related to an alignment state of the panel so that the panel loaded on the first table is aligned with a predetermined reference position.
9. The method of claim 8,
Wherein the first table is loaded with another panel to be processed while the picker unloads the corner finished panel from the first table and loads the panel on the second table.
11. The method of claim 10,
Wherein the first table and the second table independently move the panels so that corners of the panels are processed,
Wherein the panel loaded on the second table is unloaded from the second table after the cornering is completed.

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