TW201805256A - Nonstop dividing device for glass substrate which has an excellent productivity and is free from the need of maintenance - Google Patents

Abstract

The present invention provides a nonstop dividing device for glass substrate, which has an excellent productivity and is free from the need of maintenance. The device includes: a first conveyor and a second conveyor for transferring a glass substrate formed thereon a scribe line; a carrying part configured to have a height difference that is different from the transfer height of the glass substrate of the first conveyor and second conveyor for transferring the glass substrate conveyed from the first conveyor to the second conveyor while being positioned between the first conveyor and the second conveyor; and an air ejecting part for ejecting air to the glass substrate passing through an upper portion of the carrying part so as to bend the glass substrate by taking the scribe line as a center. The device is able to automatically divide the glass substrate passing through the transfer path without stop during the transferring process.

Description

Glass substrate non-stop breaking device

The present invention relates to a breaking device for a glass substrate having brittleness, and more specifically, it relates to a non-stop breaking device for a glass substrate that can be continuously cut without stopping the glass substrate being transferred.

In a method for precisely cutting a glass substrate having brittleness into a desired size, a method is generally performed in which a laser beam is irradiated along a predetermined breaking line on the surface of the glass substrate, or a cutting wheel is pressurized After traveling to form a score line on the glass substrate, bending stress is applied to the glass substrate to break the score line.

As described above, the breaking step of applying bending stress to the glass substrate includes a contact method using a roller or a pusher to apply a direct physical force to the substrate, and concentrating the kinetic energy of the air on the score line to mark the score. Non-contact method for line breaking.

Regarding the non-contact breaking device mentioned above, Korean Published Patent Publication No. 10-2016-0023075 (hereinafter referred to as Patent Document 1) is known.

According to the description, a substrate breaking device is disclosed, which includes a pair of transfer units that horizontally transfers a substrate in a state separated from each other, and is disposed between the above-mentioned transfer units and located on a surface near the substrate to be transferred An air-knife unit, which is provided at the lower position of the substrate to suck up the substrate, and an air-knife unit provided at the lower portion of the substrate and ejecting air upward to bend the substrate.

However, the conventional substrate cracking apparatus described above has the disadvantage that it is necessary to stop the substrate being transferred in order to break the substrate. That is, it is necessary to stop the transfer unit every time the substrate is broken, so that the substrate is positioned vertically below the suction unit. The frequent stoppage of such a transfer unit causes a significant reduction in productivity and shortens the mechanical life.

Furthermore, if the transfer unit is aged, the mechanical precision will inevitably decrease. When the precision is reduced, there is a problem that the scribe line on the substrate cannot be correctly located in the vertical lower part of the suction unit, and it is difficult to accurately cut off.

In addition, the conventional substrate breaking device includes not only a suction unit, an air knife unit, a guide unit, etc., but of course also includes various sensors or controllers. Therefore, the existing device is extremely complicated, and parts must be frequently processed. Maintenance issues.

Patent Document 1: Korean Published Patent Gazette No. 2016-0023075

The present invention was created in order to solve the problems of the conventional technology described above, and aims to provide a method for automatically breaking without stopping the glass substrate on the transfer path, which has better productivity and does not need to be used. The glass substrate, which is specially equipped to break the substrate, does not stop the breaking device.

In order to achieve the above-mentioned object, the glass substrate non-stop breaking device of the present invention includes a first conveyor and a second conveyor, which transfer the glass substrate formed with the scribe line, and a receiving section, which is located at the first conveyance In a state between the conveyor and the second conveyor, the glass substrate transferred from the first conveyor is transferred to the second conveyor, and the glass substrate is arranged to have a height different from the glass substrate transfer height of the first conveyor and the second conveyor. The height difference; and the air ejection part, which ejects air to the glass substrate passing through the upper part of the receiving part, and bends the glass substrate around the scribe line.

In addition, the receiving unit includes a first receiving block provided near the first conveyor and having a height difference from the first conveyor transfer surface; and a first receiving block provided near the second conveyor, and 2 The second receiving block with a height difference between the conveying surface height of the conveyor.

The air ejection unit is located between the first receiving block and the second receiving block.

In addition, in order to achieve the above-mentioned object, the glass substrate non-stop breaking device of the present invention includes a first conveyor and a second conveyor, which are arranged on a straight line to transfer the glass substrate with the scribe line formed thereon, and Separation; an air ejection unit that ejects air supplied from the outside in a state between the first conveyor and the second conveyor; and a receiving unit including the air ejection units arranged corresponding to each other, and The glass substrate transferred by the first conveyor is guided to the first receiving block above the air ejection section, and the glass substrate passing through the upper portion of the air ejecting section is induced to the second receiving block of the second conveyor.

In addition, the upper surface of the first receiving block and the upper surface of the second receiving block are formed in a flat shape so as to be in contact with the glass substrate surface, and have an inclined surface for applying bending stress to the glass substrate being transferred.

In addition, the inclined surface includes a downwardly inclined surface formed on a part of the upper surface of the first receiving block and inclined downward toward the air ejection portion, and a downwardly formed surface of a part of the upper surface of the second receiving block and being emitted from the air ejecting portion Tilt upwards and tilt upwards.

As described above, the glass substrate of the present invention does not stop the breaking device, because the glass substrate on the transfer path can be automatically cut without stopping during the transfer, so it has better productivity and does not need to be used to make There is no need for maintenance for other special equipment for substrate breaking, which has the effect of saving the production cost of the product.

11‧‧‧ Breaking device

13‧‧‧The first conveyor

13a‧‧‧ transfer surface

15‧‧‧The first receiving block

15a‧‧‧ downward slope

17‧‧‧Air spout

19‧‧‧The second receiving block

19a‧‧‧inclined surface

21‧‧‧Air Pump

23‧‧‧The second conveyor

23a‧‧‧ transfer surface

25‧‧‧Receiving Department

31‧‧‧ glass substrate

31a‧‧‧line

FIG. 1 is a diagram for explaining a configuration of a glass substrate non-stop breaking device according to an embodiment of the present invention.

Fig. 2a is a diagram (part 1) of a process of dividing a glass substrate by using the non-stop breaking device shown in Fig. 1 above.

Fig. 2b is a diagram (part 2) of the process of breaking a glass substrate by using the non-stop breaking device shown in Fig. 1 above.

FIG. 2c is a diagram (part 3) of the process of breaking a glass substrate by using the non-stop breaking device shown in FIG. 1.

FIG. 2d is a diagram (part 4) of the process of breaking a glass substrate by using the non-stop breaking device shown in FIG. 1.

FIG. 2e is a diagram (No. 5) of a process of breaking a glass substrate by using the non-stop breaking device shown in FIG. 1.

FIG. 3 is a diagram showing another example of a non-stop breaking device according to an embodiment of the present invention.

Fig. 4a is a diagram (part 1) of the process of dividing a glass substrate by the non-stop breaking device shown in Fig. 3;

FIG. 4b is a diagram (part 2) of the process of breaking a glass substrate by using the non-stop breaking device shown in FIG. 3 described above.

Fig. 4c is a diagram (part 3) of the process of dividing the glass substrate by the non-stop breaking device shown in Fig. 3;

FIG. 4d is a process of cutting a glass substrate by using the non-stop cutting device shown in FIG. 3 above. Cheng's diagram (part 4).

FIG. 4e is a diagram (part 5) of the process of breaking a glass substrate by the non-stop breaking device shown in FIG. 3;

Hereinafter, a more detailed description will be made with reference to the drawings of the embodiments of the present invention.

FIG. 1 is a diagram for explaining the structure of a non-stop breaking device (11) for a glass substrate according to an embodiment of the present invention; FIG. 2 is used to divide a glass substrate using the non-stop breaking device (11) shown in FIG. Diagram of the breaking process.

As shown in FIG. 1 and FIG. 2, the glass substrate non-stop breaking device (11) of this embodiment includes a first conveyor (13), which carries a glass substrate (31) formed with a score line (31 a) on The transfer surface (13a) is used for transfer; the receiving section (25) is provided on the downstream side of the first conveyor (13), and supports the glass substrate (31) transferred by the first conveyor (13) on its upper surface; The air ejection unit (17) is provided in the receiving unit (25); and the second conveyor (23) corresponds to the first conveyor (13) and receives and transfers the glass substrate (31) passing through the receiving unit (25).

The first conveyor (13) is a belt conveyor and provides a horizontal transfer surface (13a) at a certain height from the ground. The so-called transfer surface (13a) refers to a portion of a belt that moves in a circular motion along a predetermined path and moves to the upper portion to move the glass substrate (31). The transfer surface (13a) is transferred to the second conveyor (23) side while supporting the glass substrate (31) horizontally.

Like the first conveyor (13), the second conveyor (23) is also a belt conveyor, and has a horizontal transfer surface (23a) with a certain height. The transfer surface (23a) receives and horizontally transfers the glass substrate (31) coming over the second receiving block (19).

As shown in Fig. 1, although the conveying surface (13a) of the first conveyor (13) and the second conveyor (23) The height of the transfer surface (23a) is the same, but the height may be different. That is, the transfer surface (23a) on the other side may be made higher or lower than the transfer surface (13a) on one side.

The first conveyor (13) and the second conveyor (23) are in a straight line in a state separated from each other.

The receiving section (25) is provided between the first conveyor (13) and the second conveyor (23), and includes a first receiving block (15) and a second receiving block (19).

The first receiving block (15) and the second receiving block (19) are block-shaped members that provide a horizontal surface, as shown in FIG. 2, and play a supporting glass substrate (31) to make it smoothly from the first conveyor (13). Transfer to the function of the second conveyor (23).

The first receiving block (15) is disposed near the first conveyor (13), and receives the glass substrate (31) passing through the first conveyor (13). In particular, the upper surface of the first receiving block (15) is located at a height lower than the transfer surface (13a). That is, it is located at a position z distance lower than the height of the transfer surface (13a), and this z value can be set smaller than the thickness of the glass substrate (31).

In this way, the reason why the first receiving block (15) is set lower than the conveying surface (13a) is because the glass substrate (31) passing through the first conveyor (13) is subjected to gravity and bent downward. fold. That is, as shown in FIG. 2b, the portion designed to be separated from the first conveyor (13) of the glass substrate (31) is bent in the direction of arrow a due to its own weight. The phenomenon of bending in the direction of the arrow a is possible because the score line (31a) has been formed in advance.

The second receiving block (19) is a block-shaped member provided at the same height as the first receiving block (15), and is arranged close to the second conveyor (23). The glass substrate (31) is pushed and moved to the second conveyor (23) in a state supported by the second receiving block (19), and after reaching the second conveyor (23) securely, it is bent upward.

The air ejection section (17) is an air nozzle provided between the first receiving block (15) and the second receiving block (19). The air ejection unit (17) is connected to an air pump (21) and ejects high-pressure air supplied from the air pump (21) upward.

Therefore, the glass substrate (31) above the receiving portion (25) receives the flowing pressure of the air ejected upward from the air ejection portion (17), and bends in the direction of arrow b in FIG. 2c. The flow pressure of the air ejected from the air ejection section (17) is adjusted according to the thickness of the glass substrate, the transfer speed, and the like.

2a to 2e, the process of cutting the glass substrate (31) by the non-stop cutting device (11) will be specifically described.

First, referring to FIG. 2 a, it can be seen that the glass substrate (31) is horizontally transferred in the direction of the arrow s in a state where the glass substrate (31) is located on the transfer surface (13 a). In addition, the air ejection section (17) ejects the compressed air upward.

The glass substrate (31) is a brittle substrate having a certain thickness, and has a plurality of score lines (31a) on it. The scribed lines (31a) are formed in advance using laser or cutting wheels, and are parallel to each other. In particular, the intervals between the scribe lines (31a) are variable. The extension direction of the score line (31a) is orthogonal to the transfer direction.

The glass substrate (31) is horizontally transported in the direction of the arrow s. When the end portion of the glass substrate (31) is separated from the first conveyor (13) before the transportation direction, the first section of the glass substrate (31) is affected by gravity, that is, from the front edge As shown in FIG. 2b, the glass substrate between the part and the first scribe line (31a) is bent in the direction of arrow a.

As shown in FIG. 2b, although the front end portion of the glass substrate (31) is bent downward, it is supported by the first receiving block (15), so the score line (31a) is not completely broken. However, under different circumstances, it may be broken when the front end of the glass substrate (31) is bent once at a lower portion.

During the horizontal transfer of the glass substrate (31), even if it is bent in the direction of the arrow a, the height difference (z) between the transfer surface (13a) and the first receiving block (15) is greater than that of the glass substrate (31). The thickness is small, so the broken part will be continuously pushed by the second section of the glass substrate (31) (the glass substrate between the first scribe line (31a) and the second scribe line (31a)). And move to the second conveyor (23).

When the glass substrate (31) continues to move and passes through the upper part of the air ejection part (17), the kinetic energy of the air ejected upward from the air ejection part (17), as shown in FIG. 2c, will bend in the direction of arrow b. The upward spraying pressure of the air is controllable, and outputs kinetic energy to the extent that the glass substrate (31) being transferred can be slightly shaken.

As shown in FIG. 2d, after passing through the upper portion of the air ejection portion (17), the glass substrate (31) rotates in the direction of arrow c due to its own weight. That is, because no more kinetic energy can be accepted, the downward rotation is placed on the second receiving block (19).

Next, as shown in FIG. 2e, the front end portion of the glass substrate (31) is raised to the second conveyor (23) and bent in the direction of the arrow d.

As a result, while the glass substrate (31) is being moved from the first conveyor (13) to the second conveyor (23), it is repeatedly bent in the directions of arrows a, b, c, and d. In this way, as the front end portion of the glass substrate (31) is repeatedly folded up and down in the forward direction, it can only be divided along the scribe line (31a).

In particular, the above-mentioned series of processes are performed continuously. That is, the speed of the glass substrate (31) does not decrease or stop. The glass substrate (31) that has been moved up to the second conveyor (23) is transferred in a state where the score line (31a) is cut off as a subsequent step.

Fig. 3 is a view showing an example of a glass substrate non-stop breaking device (11) according to another embodiment of the present invention.

In the following, the same reference numerals as those in the embodiment of FIGS. 1 and 2 have the same reference numerals. The same components of the function are omitted from the repeated description.

The non-stop breaking device (11) shown in FIG. 3 has a downwardly inclined surface (15a) in the first receiving block (15) and an upwardly inclined surface (19a) in the second receiving block (19).

There is a height difference z between the receiving part (25) in FIG. 1 and the conveying surface (13a) of the first conveyor (13) and the conveying surface (23a) of the second conveyor (23), and in the case of FIG. 3, the above is replaced. The height difference, the inclined surface (15a, 19a) is applied.

That is, although the first receiving block (15) has an upper surface having the same height as the transfer surface (13a), a part of the upper surface is inclined to a downwardly inclined surface (15a). The downwardly inclined surface (15a) is designed as shown in FIG. 4b, so that the portion of the substrate protruding from the first conveyor (13) is bent in the direction of arrow a due to its own weight. As described above, the part bent downward is transferred in a state where it contacts the downward inclined surface (15a), and passes through the upper part of the air ejection part (17).

Although the second receiving block (19) has the same height as the conveying surface (23a) of the second conveyor (23), a part of the second receiving block (19) has an upwardly inclined surface (19a). The upward inclined surface (19a), as shown in FIG. 4d, functions to support the front end of the glass substrate (31) passing through the air ejection portion (17) and induce it to the second conveyor (23).

4a to 4e are diagrams sequentially showing a process of performing non-stop severing on a glass substrate (31) using the non-stop severing device shown in FIG. 3.

As shown in Fig. 4a, the glass substrate (31) is horizontally transferred by the first conveyor (13) in the direction of the arrow s. At this time, of course, the air ejection section (17) also operates to eject the compressed air upward.

The glass substrate (31) is horizontally transported in the direction of the arrow s. When the end portion of the glass substrate (31) is separated from the first conveyor (13) before the transportation direction and is located on the vertical upper part of the downward inclined surface (15a), 31) the first section, that is, from the front edge portion to the first scribe line (31a) The intermediate glass substrate (31) is bent in the direction of arrow a as shown in FIG. 4b.

The segment at the front end of the glass substrate (31) bent downward is transferred toward the air ejection part (17) in a state supported by the downward inclined surface (15a).

The glass substrate (31) passing through the upper part of the air ejection part (17) receives the kinetic energy of the air ejected upward from the air ejection part (17), and is bent in the direction of arrow b as shown in FIG. 4c.

The glass substrate (31) bent in the direction of the arrow b will be bent again once it reaches the upwardly inclined surface (19a) as the glass substrate (31) is continuously transferred. That is, it bends in the direction of the arrow c. (Refer to Figure 4d)

In the state of contacting the upwardly inclined surface (19a), the glass substrate (31) continuously pushed and transferred, as shown in FIG. 4e, rises to the second conveyor (23) and bends downward in the direction of the arrow d. The glass substrate (31) raised to the second conveyor (23) is transferred with the scribe line as the center, and is transferred as a next step.

In the above, although the present invention is described in detail through specific embodiments, the present invention is not limited to the above embodiments. Within the scope of the technical ideas specified in the scope of the patent application of the present invention, those with ordinary knowledge can do various things. Deformation.

11‧‧‧ Breaking device

13‧‧‧The first conveyor

13a‧‧‧ transfer surface

15‧‧‧The first receiving block

17‧‧‧Air spout

19‧‧‧The second receiving block

21‧‧‧Air Pump

23‧‧‧The second conveyor

23a‧‧‧ transfer surface

25‧‧‧Receiving Department

Height difference between Z‧‧‧ transfer surface (13a) and the first receiving block (15)

Claims (6)

A glass substrate non-stop breaking device, comprising: a first conveyor and a second conveyor, used to transfer a glass substrate formed with a scribe line; and a receiving portion, located between the first conveyor and the first conveyor. In a state between the second conveyors, the glass substrates transported from the first conveyor are transferred to the second conveyor, and are arranged so as to have glass substrates connected to the first conveyor and the second conveyor. The height difference between the conveying heights; and the air ejection part, which ejects air to the glass substrate passing through the upper part of the receiving part, and bends the glass substrate around the scribe line. For example, the glass substrate non-stop breaking device of the first scope of the application for a patent, wherein the above-mentioned receiving section includes: a first receiving block, which is arranged close to the first conveyor and is in contact with the conveying surface of the first conveyor There is a difference in height between the height and the second receiving block, which is set close to the above-mentioned second conveyor and has a difference in height from the conveying surface of the second conveyor. For example, the glass substrate non-stop breaking device of the second scope of the patent application, wherein the air ejection part is located between the first receiving block and the second receiving block. A glass substrate non-stop breaking device, comprising: a first conveyor and a second conveyor, which are arranged on a straight line to transfer glass substrates formed with scribe lines and are separated from each other; and an air ejection unit, which In a state between the first conveyor and the second conveyor, the air supplied from the outside is ejected upwardly; and the receiving section is provided corresponding to each other with the air ejecting section interposed therebetween, and will be conveyed by the first conveyor. The glass substrate transferred by the machine is guided to the first receiving block above the air ejection section, and the glass substrate passing through the upper portion of the air ejecting section is induced to the second receiving block of the second conveyor. For example, the glass substrate does not stop the breaking device in the fourth scope of the application for a patent. Among them, the upper surface of the first receiving block and the upper surface of the second receiving block are flat in contact with the glass substrate surface. An inclined surface on which a glass substrate is subjected to bending stress. For example, the glass substrate non-stop breaking device of the scope of application for patent No. 5, wherein the inclined surface includes a downward inclined surface formed on a part of the upper surface of the first receiving block and inclined downward toward the air ejection portion; and The upward inclined surface is formed on a part of the upper surface of the second receiving block, and is inclined upward from the air ejection portion.