JP2018020953A - Glass substrate nonstop parting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a glass substrate nonstop parting device excellent in productivity, and dispensing with maintenance.SOLUTION: A glass substrate nonstop parting device includes: a first conveyor and a second conveyor for transferring a glass substrate having a scribe line formed thereon; a reception part arranged so as to have a difference of elevation different from a transfer height of the glass substrate by the first conveyor and the second conveyor, while transferring the glass substrate transmitted from the first conveyor to the second conveyor in the state of being positioned between the first conveyor and the second conveyor; and an air blowout part for jetting out the air to the glass substrate passing through an upper part of the reception part so that the glass substrate is broken centered at the scribe line. Hereby, the glass substrate passing through a transfer route can be automatically parted without stopping during transfer.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a glass substrate cutting apparatus having brittleness, and more particularly to a glass substrate non-stop cutting apparatus capable of continuously cutting a glass substrate being transferred without stopping. .

  This is a method to precisely cut a brittle glass substrate to the required size. It is irradiated with a laser beam along the planned dividing line on the surface of the glass substrate, or the cut wheel is moved under pressure to form a scribe line on the glass substrate. After forming, a method of applying a bending force to the glass substrate and dividing the scribe line is generally performed.

  As described above, the cutting process for applying a bending force to the glass substrate includes a contact method in which a physical force is directly applied to the substrate using a roller, a pusher, and the like, and an air motion on the scribe line. There are non-contact methods that concentrate energy and allow the scribe line to break.

  As for the non-contact type cutting device described above, Korean Patent Publication No. 10-2016-0023075 (hereinafter referred to as Patent Document 1) is known.

  According to this, a pair of transfer units that horizontally transfer a substrate in a state of being separated from each other, and a substrate that is installed between the transfer units and that is positioned close to the upper surface of the substrate to be transferred and sucks the substrate There is disclosed a substrate break device including an intake unit that lifts the air, an air knife unit that is installed at a lower portion of the substrate and blows air upward to bend the substrate.

  By the way, the above-described conventional substrate break apparatus has a demerit that the substrate being transferred must be stopped in order to divide the substrate. That is, every time the substrate is divided, the transfer unit must be stopped and the substrate must be positioned vertically below the intake unit. Such frequent stoppage of the transfer unit greatly reduces the productivity and shortens the mechanical life.

  Furthermore, when the transfer unit is aged, it is natural that the mechanical precision is lowered, but when the precision is lowered in this way, the scribe line of the substrate is not accurately positioned at the vertical lower part of the intake unit, There was a problem that accurate division was difficult.

  In addition, the conventional board break device described above includes various sensors and controllers as well as an air intake unit, an air knife unit, a guide unit, etc., so that the device is extremely complicated and parts maintenance is frequently performed. There was a problem that had to be solved.

Korean Published Patent Publication No. 2006-0023075

  The present invention was created to solve the above-mentioned problems of the prior art, and the glass substrate that passes through the transfer path is automatically divided without stopping during transfer, so that the productivity is increased accordingly. An object of the present invention is to provide a glass substrate non-stop cutting apparatus that is excellent in that it does not require special equipment for dividing the substrate.

  In order to achieve the above object, the glass substrate non-stop cutting apparatus according to the present invention includes a first conveyor and a second conveyor for transferring a glass substrate on which a scribe line is formed, the first conveyor and the second conveyor. The glass substrate transferred from the first conveyor is transferred to the second conveyor while being located between the conveyors, but has a height difference different from the transfer height of the glass substrate by the first conveyor and the second conveyor. And an air ejection part that ejects air onto a glass substrate passing through an upper part of the receiving part so that the glass substrate can be folded around a scribe line.

  Further, the receiving portion is positioned in proximity to the first conveyor, and is positioned in proximity to the first receiving block having a height difference between the height of the first conveyor transfer surface and the second conveyor. And a second receiving block having a height difference between the height of the second conveyor transfer surface.

  Further, the air ejection part is located between the first receiving block and the second receiving block.

  Further, the glass substrate non-stop cutting device of the present invention for achieving the above object is arranged in a straight line so as to transfer a glass substrate on which a scribe line is formed, and a first conveyor spaced apart from each other, and In a state of being located between the second conveyor, the first conveyor and the second conveyor, the air ejection part that ejects the air supplied from the outside upward, and the air ejection part are arranged corresponding to each other across the air ejection part, A first receiving block for guiding the glass substrate transferred by the first conveyor to the upper portion of the air ejection portion, and a second receiving block for guiding the glass substrate that has passed the upper portion of the air ejection portion to the second conveyor It is characterized by including the receiving part provided with.

  Further, the upper surface of the first receiving block and the upper surface of the second receiving block take a flat shape so as to be able to come into contact with the glass substrate, but an inclined surface for applying a bending force to the glass substrate being transferred is provided. It is characterized by having.

  In addition, the inclined surface is formed on a part of the upper surface of the first receiving block, and is formed on a downwardly inclined surface that is inclined downward toward the air ejection portion, and on a part of the upper surface of the second receiving block. And an upward inclined surface that is inclined upward from the air ejection portion.

  The glass substrate non-stop cutting apparatus of the present invention made as described above is automatically cut without stopping during transfer, so that the glass substrate passing on the transfer path is cut off. There is no need for separate dedicated equipment to divide, so there is no need for maintenance, and the production cost of the product is reduced.

FIG. 1 is a view for explaining the configuration of a glass substrate non-stop cutting apparatus according to an embodiment of the present invention. FIG. 2a is a view sequentially illustrating a process of cutting the glass substrate using the non-stop cutting apparatus shown in FIG. FIG. 2B is a view sequentially illustrating a process of cutting the glass substrate using the non-stop cutting apparatus shown in FIG. FIG. 2c is a view sequentially illustrating a process of cutting the glass substrate using the non-stop cutting apparatus shown in FIG. FIG. 2d is a view sequentially illustrating a process of cutting the glass substrate using the non-stop cutting apparatus shown in FIG. FIG. 2e is a view sequentially illustrating a process of cutting the glass substrate using the non-stop cutting apparatus shown in FIG. FIG. 3 is a view showing another example of the glass substrate non-stop cutting device according to one embodiment of the present invention. FIG. 4A is a view sequentially illustrating a process of cutting the glass substrate using the non-stop cutting apparatus shown in FIG. FIG. 4B is a view sequentially illustrating a process of cutting the glass substrate using the non-stop cutting apparatus shown in FIG. FIG. 4c is a view sequentially illustrating a process of cutting the glass substrate using the non-stop cutting apparatus shown in FIG. FIG. 4d is a view sequentially illustrating a process of cutting the glass substrate using the non-stop cutting apparatus shown in FIG. FIG. 4e is a diagram sequentially illustrating a process of cutting the glass substrate using the non-stop cutting apparatus shown in FIG.

  Hereinafter, embodiments of the present invention will be described in more detail with reference to the accompanying drawings.

  FIG. 1 is a view for explaining the configuration of a glass substrate non-stop cutting device (11) according to an embodiment of the present invention, and FIG. 2 uses the non-stop cutting device (11) shown in FIG. It is the figure which showed the parting process of the glass substrate.

  As shown in FIGS. 1 and 2, the glass substrate non-stop cutting apparatus (11) according to the present embodiment moves the glass substrate (31) on which the scribe line (31a) is formed on the transfer surface (13a). The first conveyor (13) to be transported on the first conveyor (13) and the glass substrate (31) which is arranged downstream of the first conveyor (13) and transferred through the first conveyor (13) is supported on the upper surface thereof. Corresponding to the receiving part (25), the air ejection part (17) installed in the receiving part (25), and the first conveyor (13), the glass substrate (31) that has passed through the receiving part (25) A second conveyor (23) for receiving and transferring.

  The first conveyor (13) is a belt type conveyor and provides a horizontal transfer surface (13a) having a certain height with respect to the ground. The transfer surface (13a) refers to a portion of the belt that circulates along a predetermined path and moves upward to move the glass substrate (31). The transfer surface (13a) is transferred to the second conveyor (23) side in a state where the glass substrate (31) is horizontally supported.

  Similarly to the first conveyor (13), the second conveyor (23) is a belt type conveyor and has a horizontal transfer surface (23a) having a certain height. The transfer surface (23a) receives and horizontally transfers the glass substrate (31) that has passed over the second receiving block (19).

  In FIG. 1, the height of the transfer surface (13a) of the first conveyor (13) and the height of the transfer surface (23a) of the second conveyor (23) are shown to be the same, but the height is made different. You can also. 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) form a straight line while being separated from each other.

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

  Each of the first receiving block (15) and the second receiving block (19) is a block-type member that provides a horizontal plane, and as shown in FIG. 2, the glass substrate (31) is a first conveyor. It plays a role of supporting the smooth transfer from (13) to the second conveyor (23).

  The first receiving block (15) is disposed in proximity to the first conveyor (13) and receives the glass substrate that has passed through the first conveyor (13). In particular, the upper surface of the first receiving block (15) is located at a lower altitude than the transfer surface (13a). That is, it is located lower than the height of the transfer surface (13a) by z. Such z value can be made smaller than the thickness of the glass substrate (31).

  As described above, the reason why the first receiving block (15) is positioned relatively lower than the transfer surface (13a) is that the glass substrate (31) that has passed through the first conveyor (13) exerts the action of gravity. This is for receiving and folding downward. That is, as shown in FIG. 2 (b), the glass substrate (31) is designed and applied so that the portion of the glass substrate (31) that is removed from the first conveyor (13) is bent in the direction of arrow a by its own weight. The folding phenomenon in the direction of arrow a is possible because the scribe line (31a) is formed in advance.

  The second receiving block (19) is a block-type member that provides an upper surface that is the same height as the first receiving block (15), and is positioned close to the second conveyor (23). The glass substrate (31) is pushed while being supported by the second receiving block (19), moves to the second conveyor (23), is seated on the second conveyor (23), and is folded upward. .

  On the other hand, the air ejection part (17) is an air nozzle installed between the first receiving block (15) and the second receiving block (19). The air ejection part (17) is connected to an air pump (21) and ejects high-pressure air supplied from the air pump (21) upward.

  Accordingly, the glass substrate (31) passing through the upper part of the receiving part (25) receives the flow pressure of the air jetted upward from the air blowing part (17), and is bent in the direction of arrow b in FIG. become. The flow pressure of the air ejected from the air ejection part (17) is adjusted according to the thickness of the glass substrate, the transfer speed, and the like.

  A process of cutting the glass substrate (31) using the non-stop cutting device (11) will be specifically described with reference to (a) to (e) of FIG.

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

  The glass substrate (31) is a brittle substrate having a certain thickness, and has a large number of scribe lines (31a) on its upper surface. The scribe lines (31a) are formed in advance by a laser or a cutting wheel and are parallel to each other. In particular, the distance between the scribe lines 31a can vary. The extending direction of the scribe line (31a) is orthogonal to the transfer direction.

  When the glass substrate (31) is horizontally transferred in the direction of the arrow s, and the tip in the transfer direction comes off from the first conveyor (13), the first node of the glass substrate (31), that is, the tip, is caused by the action of gravity. The glass substrate between the edge portion and the first scribe line (31a) is bent in the direction of arrow a as shown in FIG. 2 (a).

  As shown in Fig. 2 (b), the tip of the glass substrate (31) breaks down, but is supported by the first receiving block (15), so the scribe line (31a) is completely separated. It will never be done. However, depending on the case, the tip of the glass substrate (31) may be divided when it is once folded downward.

  Even if the glass substrate (31) is horizontally transferred and is divided when it is folded in the direction of arrow a, the height difference (z) between the transfer surface (13a) and the first receiving block (15) is the glass substrate ( Since the thickness is smaller than the thickness of 31), the divided part is the second section of the glass substrate (31) (between the first scribe line (31a) and the second scribe line (31a)). It is pushed by the glass substrate) and moves to the second conveyor (23) side.

  When the glass substrate (31) continues to move and passes through the upper part of the air ejection part (17), it receives the kinetic energy of the air ejected upward from the air ejection part (17), and (c) in FIG. As shown, it folds in the direction of arrow b. The upward jetting pressure of the air can be controlled, and the kinetic energy is output to such an extent that the glass substrate (31) being transferred is slightly swung.

As shown in (d) of FIG. 2, the glass substrate (31) rotates in the direction of arrow c by its own weight after passing through the upper part of the air ejection part (17). That is, since it cannot receive any more kinetic energy, it is turned downward and placed on the upper surface of the second receiving block (19).

Subsequently, as shown in FIG. 2 (e), the tip of the glass substrate (31) goes up to the second conveyor (23) and bends in the direction of the arrow d.

Eventually, the glass substrate (31) is repeatedly folded in the directions of arrows a, b, c, and d while moving from the first conveyor (13) to the second conveyor (23). As described above, as the front end portion of the glass substrate (31) in the transfer direction is repeatedly folded up and down, the glass substrate (31) is only divided along the scribe line (31a).

In particular, the series of processes described above are performed continuously. That is, the speed of the glass substrate (31) does not decrease or stop. The glass substrate (31) raised to the first conveyor (23) is transferred for the next step with the scribe line (31a) being divided.

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

In the following, the same reference numerals as those in the embodiment according to FIGS. 1 and 2 denote the same members having the same functions, and repeated description thereof will be omitted.

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

The receiving part (25) in FIG. 1 has a height difference of only z from the transfer surface (13a) of the first conveyor (13) and the transfer surface (23a) of the second conveyor (23). In this case, an inclined surface (15a, 19a) is applied instead of the step of the height difference described above.

That is, the first receiving block (15) has an upper surface having the same height as the transfer surface (13a), but a part of the upper surface is inclined to form a downward inclined surface (15a). As shown in FIG. 4 (a), the downward inclined surface is designed and applied so that the portion extending from the first conveyor (13) is bent in the direction of arrow a by its own weight. The portion folded in the lower part is transferred while being in contact with the downward inclined surface (15a) and passes through the upper part of the air ejection part (17).

The second receiving block (19) also has the same height as the transfer surface (23a) of the second conveyor (23), but a part thereof has an upward inclined surface (19a). As shown in FIG. 4 (d), the upward inclined surface (19a) supports the tip of the glass substrate (31) that has passed through the air ejection part (17) and is guided to the second conveyor (23). To play a role.

FIGS. 4 (a) to 4 (e) are diagrams sequentially illustrating a process of non-stop cutting the glass substrate (31) using the non-stop cutting apparatus shown in FIG.

As shown in FIG. 4 (a), the glass substrate (31) is horizontally transferred in the direction of arrow s by the first conveyor (13). At this time, it goes without saying that the air ejection section (17) is also activated to eject the compressed air upward.

When the glass substrate (31) is horizontally transported in the direction of the arrow s and the tip in the transport direction is disengaged from the first conveyor (13) and at the same time vertically above the downwardly inclined surface (15a), the glass is moved by gravity. The first node of the substrate (31), that is, the glass substrate between the first edge portion and the first scribe line (31a) is, as shown in FIG. Break.

The node at the tip of the glass substrate (31) folded at the lower part is transferred toward the air ejection part (17) while being 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 as shown in FIG. Fold in the b direction.

The glass substrate (31) broken in the direction of arrow b reaches the upward inclined surface (19a) and bends again in response to the continuous transfer of the glass substrate (31). That is, it bends in the direction of arrow c. (See (d) in Figure 4)

The glass substrate (31), which is continuously pushed and transferred while in contact with the upward inclined surface (19a), rises to the second conveyor (23) as shown in FIG. 4 (d). Then fold down again in the direction of arrow d. The glass substrate (31) that has moved up to the second conveyor (23) is transferred for the next step in a state of being divided around the scribe line (31a).

The present invention has been described in detail through specific embodiments. However, the present invention is not limited to the above-described embodiments, and ordinary knowledge is within the scope of the technical idea defined by the claims of the present invention. Various modifications are possible depending on the person who has them.

DESCRIPTION OF SYMBOLS 11 Dividing device 13 1st conveyor 13a Transfer surface 15 1st receiving block 15a Downward inclined surface 17 Air ejection part 19 2nd receiving block 19a Upward inclined surface 21 Air pump 23 2nd conveyor 23a Transfer surface 25 Receiving part 31 Glass Substrate 31a Scribe line

Claims (6)

A first conveyor and a second conveyor for transferring a glass substrate on which a scribe line is formed;
The glass substrate transmitted from the first conveyor is transferred to the second conveyor while being positioned between the first conveyor and the second conveyor, and the glass substrate is transferred by the first conveyor and the second conveyor. A receiving portion arranged to have a height difference different from the transfer height;
A glass substrate non-stop cutting apparatus, comprising: an air blowing portion that blows air onto a glass substrate passing through an upper portion of the receiving portion so that the glass substrate is bent around a scribe line. The receiving part is
A first receiving block located close to the first conveyor and having a difference in height and height of the first conveyor transfer surface;
The glass substrate non-stop cutting according to claim 1, further comprising: a second receiving block positioned adjacent to the second conveyor and having a height difference between a height and a height of the second conveyor transfer surface. apparatus.   3. The glass substrate non-stop cutting apparatus according to claim 2, wherein the air ejection part is located between the first receiving block and the second receiving block. A first conveyor and a second conveyor arranged in a straight line and spaced apart from each other to transfer a glass substrate on which a scribe line is formed;
In the state located between the first conveyor and the second conveyor, an air ejection unit that ejects air supplied from the outside upward,
A first receiving block that is arranged corresponding to each other across the air ejection part and guides a glass substrate transferred by a first conveyor to the upper part of the air ejection part, and a glass substrate that has passed through the upper part of the air ejection part. A glass substrate non-stop cutting device comprising: a receiving portion including a second receiving block that guides to a second conveyor.   The upper surface of the first receiving block and the upper surface of the second receiving block have a flat shape so as to be able to come into contact with the glass substrate, but have an inclined surface for applying a bending force to the glass substrate being transferred. 5. The glass substrate non-stop cutting apparatus according to claim 4, wherein The inclined surface is
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;
6. The glass substrate non-stop cutting apparatus according to claim 5, further comprising an upward inclined surface formed on a part of the upper surface of the second receiving block and inclined upward from the air ejection portion.