TWI643826B - Breaking device and breaking method - Google Patents

Abstract

An object of the present invention is to eliminate the problems caused by the substrate being separated between the upstream-side conveyance belt and the downstream-side conveyance belt.

The breaking device 1 includes a conveying belt 2, first to fourth supporting members 4, 5, 7, 8, and first and second breaking bars 3, 6. The conveyance belt 2 has flexibility. The first breaking lever 3 and the first and second supporting members 4 and 5 are arranged above the mounting surface 21. The second breaking lever 6 and the third and fourth supporting members 7 and 8 are arranged below the mounting surface 21. The third support member 7 is disposed under the first support member 4 via the conveyance belt 2. The fourth support member 8 is disposed under the second support member 5 via the conveyance belt 2.

Description

Breaking device and breaking method

The invention relates to a breaking device.

Generally speaking, the method of breaking a substrate of a brittle material first uses a scoring device to form a score line on the substrate of the brittle material. Then, the brittle material substrate is pressed by the breaking device to deflect the brittle material substrate. As a result, the brittle material substrate was divided along the score line. This breaking device is provided between the upstream conveying belt and the downstream conveying belt (see Patent Document 1). In addition, the breaking device is a brittle material substrate that is arranged across the upstream and downstream conveying belts and the downstream conveying belt by the above-mentioned method.

[Prior technical literature] [Patent Literature]

[Patent Document 1] Japanese Patent Laid-Open No. 2012-126580

When the fragile material substrate is cut between the upstream-side conveyance belt and the downstream-side conveyance belt like the above-mentioned cutting device, various problems occur. For example, when the size of the brittle material substrate after breaking is small, a problem arises that it falls between the upstream-side conveying belt and the downstream-side conveying belt.

The problem of the present invention is to eliminate the problems caused by cutting off the substrate between the upstream-side conveyance belt and the downstream-side conveyance belt.

The cutting device according to the first aspect of the present invention cuts a brittle material substrate formed with a scribe line along the scribe line. This breaking device includes a conveying belt, first and second supporting members, a first breaking lever, third and fourth supporting members, and a second breaking lever. The transfer belt has a mounting surface on which a substrate is mounted. The transfer belt is configured to transfer a substrate. The carrying belt is flexible. The first and second supporting members are arranged above the mounting surface in the conveying direction of the conveying belt. The first and second support members are configured to be liftable. The first breaking lever is arranged above the mounting surface. The first breaking lever is disposed between the first support member and the second support member. The first breaking lever system is configured to be liftable. The 3rd and 4th support members are arrange | positioned along the conveyance direction below the mounting surface. The third and fourth support members are configured to be movable up and down. The second breaking lever is arranged below the mounting surface. The second breaking lever is disposed between the third support member and the fourth support member. The second breaking lever system is configured to be liftable. The third support member is disposed under the first support member via the transport belt. The fourth support member is disposed under the second support member via the transport belt.

According to the present invention, for example, the substrate can be separated by the following method. First, the third and fourth support members are moved upward to support the conveyance belt from below. Next, the first breaking lever is moved downward by pressing the substrate downward with the first breaking lever. Since the transfer belt is flexible, the substrate can be flexed together with the transfer belt.

As a result, the substrate was divided along the score line.

In addition, the present invention can also divide the substrate in the following manner. First, the first and second supporting members are moved downward to support the substrate from above. Next, the second breaking lever is moved upward. Thereby, the 2nd breaking lever presses a board | substrate upwards via the conveyance belt. As a result, the substrate and the conveyance belt were flexed, and the substrate was cut along the scribe line.

As described above, in the present invention, in order to separate the substrate, there is no need for a gap between the upstream-side conveyance belt and the downstream-side conveyance belt. Therefore, it is possible to eliminate the problem caused by the substrate being cut off due to the gap between the upstream conveying belt and the downstream conveying belt.

In addition, according to the present invention described above, the substrate can be separated by the following method. For example, the substrate is held in the vertical direction by the second support member and the fourth support member. In this state, make The first breaking lever moves downward, and the substrate is pressed downward by the first breaking lever. As a result, the substrate was flexed together with the transfer belt, and the substrate was divided along the scribe line. The above method is useful, for example, when the distance between the edge of the substrate and the score line is short.

Preferably, the substrate has an end portion and a main body portion. The end is defined by the scribe line and the edge of the substrate. The body portion is a portion other than the end portion. The second support member and the fourth support member are configured to be capable of holding the body portion together with the conveyance belt. The first breaking lever is configured to be capable of pressing the end portion downward.

Preferably, the first and second supporting members are configured to be movable in the conveying direction.

With this configuration, the first and second supporting members can support the substrate from above at an appropriate position.

Preferably, the 3rd and 4th support members are comprised so that it can move to a conveyance direction.

With this configuration, the third and fourth support members can support the conveyance belt from below at an appropriate position.

The cutting method according to the second aspect of the present invention cuts the brittle material substrate along the scribe line. Furthermore, the brittle material substrate has a main body portion and an end portion which are distinguished by scribe lines. This breaking method includes the following steps (a) to (c). In step (a), the substrate is transferred using a flexible transfer belt. In step (b), the main body portion is held one by one by the conveyance belt. In step (c), the end portion is pressed downward, so that the end portion and the conveying belt are flexed together.

According to this method, by flexing the end portion and the conveying belt together, the substrate can be divided along the score line. As described above, in the present invention, in order to separate the substrate, a gap between the upstream-side conveyance belt and the downstream-side conveyance belt is not required. Therefore, it is possible to eliminate the problem caused by the substrate being cut off due to the gap between the upstream conveying belt and the downstream conveying belt.

Preferably, the substrate is a bonded substrate formed by bonding a first substrate and a second substrate. The scribe line includes the first scribe line and the second scribe line. The first score line is formed on the first substrate. The second score line is formed on the second substrate.

Preferably, in step (a), the first substrate becomes the upper side and the second substrate becomes the lower side. By disposing the brittle material substrate in this manner, the brittle material substrate is transported. In step (c), the first substrate is divided along the first score line by flexing the end portion.

According to the present invention, it is possible to eliminate a problem caused by breaking the substrate due to a gap between the upstream-side transport belt and the downstream-side transport belt.

1‧‧‧ breaking device

2‧‧‧ transport belt

3‧‧‧ 1st break

4‧‧‧ the first supporting member

5‧‧‧ 2nd supporting member

6‧‧‧ 2nd break

7‧‧‧3rd supporting member

8‧‧‧ 4th supporting member

10‧‧‧ Brittle material substrate

11‧‧‧ scribed

11a‧‧‧1st scribe

11b‧‧‧2nd scribe

12‧‧‧ end

13‧‧‧Body

15‧‧‧The first substrate

16‧‧‧ 2nd substrate

21‧‧‧mounting surface

22‧‧‧ transport roller

23‧‧‧ Opposite side of the mounting surface 21 of the conveyor belt 2

Figure 1 is a schematic diagram of a breaking device.

Fig. 2 is a schematic diagram of a breaking device.

Fig. 3 is a schematic diagram of a breaking device.

Fig. 4 is a schematic diagram of a breaking device.

Fig. 5 is a schematic diagram of a breaking device.

Fig. 6 is a schematic diagram of a breaking device.

Fig. 7 is a schematic diagram of a breaking device.

Fig. 8 is a schematic diagram of a breaking device.

Fig. 9 is a schematic diagram of a breaking device.

Fig. 10 is a schematic diagram of a breaking device.

Hereinafter, an embodiment of the breaking device of the present invention will be described with reference to the drawings. Figure 1 is a schematic diagram of a breaking device.

As shown in FIG. 1, the cutting device 1 is a device for cutting the brittle material substrate 10 along the score line 11. A scribe line 11 is formed on the brittle material substrate 10. The brittle material substrate 10 includes an end portion 12 and a main body portion 13. The end portion 12 is defined by the edge 14 of the substrate 10 and the scribe line 11. The body portion 13 is a portion excluding the end portion 12 from the brittle material substrate 10. The length of the main body portion 13 in the conveying direction is longer than that of the end portion 12.

In this embodiment, the brittle material substrate 10 is a bonded substrate. That is, the brittle material substrate 10 includes a first substrate 15 and a second substrate 16. A first scribe line is formed on the first substrate 15 11a, a second scribe line 11b is formed on the second substrate 16. The scribe line 11 includes a first scribe line 11a and a second scribe line 11b. The first score line 11a and the second score line 11b face each other.

A liquid crystal layer is formed between the first substrate 15 and the second substrate 16, for example. The brittle material substrate 10 includes a sealing member (not shown) disposed between the first substrate 15 and the second substrate 16. The sealing member surrounds the liquid crystal layer. The brittle material substrate 10 in this embodiment is conveyed in a state where the first substrate 15 is disposed on the upper side and the second substrate 16 is disposed on the lower side.

The breaking device 1 includes a transport belt 2, a first breaking lever 3, a first supporting member 4, a second supporting member 5, a second breaking lever 6, a third supporting member 7, and a fourth supporting member 8.

The transfer belt 2 includes a mounting surface 21 on which the substrate 10 is mounted. The transfer belt 2 is configured to transfer a substrate. Moreover, the conveyance belt 2 has flexibility. For example, the conveyance belt 2 can be formed using natural rubber, synthetic rubber, cloth, or synthetic resin. The conveying belt 2 is installed in a state where tension is applied to a degree that does not slacken.

This conveying belt 2 rotates counterclockwise in FIG. 1. That is, in the present embodiment, the transfer belt 2 transfers the substrate 10 in the Y direction (the left direction in FIG. 1). Specifically, the conveyance belt 2 is driven by a plurality of conveyance rollers 22. Each conveyance roller 22 is driven by a motor.

The first breaking lever 3 is arranged above the mounting surface 21 of the conveying belt 2. The first breaking lever 3 is arranged between the first support member 4 and the second support member 5 in the conveying direction.

The first breaking lever 3 is a member that presses the substrate 10 placed on the mounting surface 21 from above and breaks the substrate 10 along the scribe line 11. Specifically, the first breaking lever 3 presses the substrate 10 with a front end portion (lower end portion).

The front end part of the 1st breaking lever 3 is comprised so that thickness may become thin gradually toward a front-end | tip. The first breaking lever 3 extends in a horizontal direction and a direction orthogonal to the conveying direction. Specifically, the first breaking lever 3 extends in the vertical direction of the paper surface in FIG. 1.

The first breaking lever 3 is configured to be liftable. That is, the first breaking lever 3 is configured to be movable in the vertical direction. For example, the first breaking lever 3 is driven by a fluid cylinder (not shown) and is movable upward and downward. In detail, the first breaking lever 3 can be placed in a pressing manner from above. The substrate 10 on the mounting surface 21 moves downward. In addition, the first breaking lever 3 can be moved upward so as not to contact the substrate 10 placed on the mounting surface 21.

The first support member 4 is a member for supporting the substrate 10 placed on the mounting surface 21. In detail, the first support member 4 supports the substrate 10 by bringing the lower surface of the first support member 4 into contact with the upper surface of the substrate 10.

The first support member 4 is arranged above the mounting surface 21 of the conveyance belt 2. In this embodiment, the first support member 4 is disposed on the upstream side in the conveying direction with respect to the first breaking lever 3.

The first support member 4 is configured to be movable up and down. That is, the first support member 4 is configured to be movable in the vertical direction. For example, the first support member 4 is driven by a fluid cylinder (not shown) and is movable upward and downward. Specifically, the first support member 4 can move downward so as to support the substrate 10 placed on the mounting surface 21. In addition, the first supporting member 4 can be moved upward so as not to contact the substrate 10 placed on the mounting surface 21.

The second supporting member 5 is a member for supporting the substrate 10 placed on the mounting surface 21. The second support member 5 is disposed above the mounting surface 21. In this embodiment, the second support member 5 is disposed on the downstream side in the conveying direction with respect to the first breaking lever 3. The second support member 5 is configured to be movable up and down. In addition, since the second support member 5 has the same configuration as the first support member 4 except for the position where it is arranged, detailed description is omitted. The first and second support members 4 and 5 are configured to be movable in the conveying direction. That is, the first and second support members 4 and 5 can move toward the upstream side in the conveyance direction, or move toward the downstream side in the conveyance direction.

As described above, the first support member 4, the first breaking lever 3, and the second support member 5 arranged above the mounting surface 21 of the transport belt 2 are arranged in this order. In the conveyance direction, the first support member 4 and the second support member 5 are arranged at intervals s.

The second breaking lever 6 is arranged below the mounting surface 21 of the conveying belt 2. The second breaking lever 6 is arranged between the third support member 7 and the fourth support member 8 in the conveying direction.

The second breaking lever 6 is a member that presses the substrate 10 placed on the mounting surface 21 from below and breaks the substrate 10 along the scribe line 11. Specifically, the second breaking lever 6 transports the leather across The belt 2 presses the substrate 10. The second breaking lever 6 presses the substrate 10 with a front end portion (upper end portion).

The front end part of the 2nd breaking lever 6 is comprised so that thickness may become thin gradually toward a front-end | tip. The second breaking lever 6 extends in a horizontal direction and a direction orthogonal to the conveying direction. Specifically, the second breaking lever 6 extends in the vertical direction of the paper surface in FIG. 1.

The second breaking lever 6 is configured to be movable up and down. That is, the second breaking lever 6 is configured to be movable in the vertical direction. For example, the second breaking lever 6 is driven by a fluid cylinder (not shown) and is movable upward and downward. Specifically, the second breaking lever 6 can be moved upward by pressing the substrate 10 placed on the mounting surface 21 from below. The second breaking lever 6 can be moved downward so as not to come into contact with the conveyance belt 2.

The third support member 7 is a member that supports the conveyance belt 2 from below. Specifically, the third support member 7 supports the substrate 10 placed on the mounting surface 21 by supporting the transfer belt 2. The upper surface of the third support member 7 is in contact with the side surface 23 opposite to the mounting surface 21 of the conveyance belt 2, and the third support member 7 supports the conveyance belt 2.

The third support member 7 is disposed below the mounting surface 21. The third supporting member 7 is disposed on the upstream side of the second breaking lever 6 in the conveying direction.

The third support member 7 is configured to be liftable. That is, the third support member 7 is configured to be movable in the vertical direction. For example, the third support member 7 is driven by a fluid cylinder (not shown) and is movable upward and downward. Specifically, the third support member 7 can be moved upward to support the conveyance belt 2. In addition, the third support member 7 can be moved downward so as not to come into contact with the conveyance belt 2.

The fourth support member 8 is a member for supporting the conveyance belt 2. The fourth support member 8 is disposed below the mounting surface 21. The fourth support member 8 is disposed on the downstream side of the second breaking lever 6 in the conveying direction. The fourth support member 8 is configured to be movable up and down. In addition, the fourth support member 8 has the same configuration as the third support member 7 except for the position where it is arranged, so detailed description is omitted. Moreover, the 3rd and 4th support members 7 and 8 are comprised so that it can move to a conveyance direction. That is, the 3rd and 4th support members 7 and 8 can move to the upstream side of a conveyance direction, or can move toward the conveyance direction. Move to the downstream side.

As described above, the third support member 7, the second breaking lever 6, and the fourth support member 8 arranged below the mounting surface 21 of the conveying belt 2 are arranged in this order.

Next, a breaking method using a breaking device configured as described above will be described. In addition, the distance between the edge 14 of the substrate 10 and the score line 11 is less than half of the minimum value of the interval s between the first support member 4 and the second support member 5. For example, the distance between the edge 14 of the substrate 10 and the score line 11 is about 1 mm to 3 mm. In addition, the minimum value of the interval s means that the substrate 10 can be supported from above by the first support member 4 and the second support member 5, and the substrate 10 is pressed upward by the second breaking lever 6 to follow the scribe. The line 11 divides the range of the substrate 10, that is, the interval s when the first support member 4 and the second support member 5 are closest to each other.

First, as shown in FIG. 1, a brittle material substrate 10 is placed on the placement surface 21 of the conveyance belt 2. Then, the brittle material substrate 10 is transported by the transport belt 2. Specifically, the conveyance belt 2 is driven by the conveyance roller 22 to convey the brittle material substrate 10.

When the scribe line 11 of the brittle material substrate 10 is located directly below the first breaking lever 3, the transport of the brittle material substrate 10 using the transport belt 2 is stopped. Then, as shown in FIG. 2, the third and fourth support members 7 and 8 are moved upward to support the conveyance belt 2 from below using the third and fourth support members 7 and 8. The fourth support member 8 is located under the substrate 10 via the transfer belt 2, but the third support member 7 is not located under the substrate 10 via the transfer belt 2.

Next, as shown in FIG. 3, the first breaking lever 3 is moved downward. Thereby, the first breaking lever 3 presses the substrate 10 downward, so that the substrate 10 and the conveying belt 2 are flexed together. The first breaking lever 3 is pressed on the score line 11. As a result, the second substrate 16 is divided along the second scribe line 11 b formed on the second substrate 16.

Next, the substrate 10 is again transported by the transport belt 2. Specifically, after the third and fourth support members 7 and 8 are moved downward and the first breaking lever 3 is moved upward, the substrate 10 is again transported by the transport belt 2.

As shown in FIG. 4, when the end portion 12 is located directly below the first breaking lever 3, The conveying belt 2 conveys the brittle material substrate 10. Then, as shown in FIG. 5, the second support member 5 is moved downward, and the fourth support member 8 is moved upward. As a result, the substrate 10 is supported by being sandwiched between the second support member 5 and the fourth support member 8. Specifically, the second and fourth supporting members 5 and 8 sandwich the body portion 13 of the substrate 10. That is, the end portion 12 of the substrate 10 is not held between the second and fourth support members 5 and 8. The second support member 5 and the fourth support member 8 hold not only the substrate 10 but also the conveyance belt 2.

Next, as shown in FIG. 6, the first breaking lever 3 is moved downward. Thereby, the 1st breaking lever 3 presses the edge part 12 of the board | substrate 10 downward, and bends the edge part 12 downward. As a result, the first substrate 15 is divided along the first scribe line 11 a formed on the first substrate 15.

As described above, the cutting device 1 can cut the substrate 10 along the scribe line 11. When the width of the end portion 12 of the substrate 10 is narrow, the substrate 10 may not be supported by the first support member 4 and the second support member 5. That is, when this is convenient, the substrate 10 may be cut along the scribe line 11 by using the method described above.

When the distance between the edge 14 of the substrate 10 and the scribe line 11 is larger than one and a half of the minimum value of the interval s between the first support member 4 and the second support member 5, the first substrate 15 can be cut by the following method.

Specifically, when the scribe line 11 of the brittle material substrate 10 is located directly below the first breaking lever 3, the transport of the brittle material substrate 10 by the transport belt 2 is stopped. Then, as shown in FIG. 7, the third and fourth support members 7 and 8 are moved upward, and the third and fourth support members 7 and 8 support the conveyance belt 2 from below. Here, it is preferable that the third and fourth support members 7 and 8 are located under the substrate 10 via the transport belt 2.

Next, as shown in FIG. 8, the first breaking lever 3 is moved downward. Thereby, the first breaking lever 3 presses the substrate 10 downward. The first breaking lever 3 is pressed on the score line 11. By this pressing force, the substrate 10 and the transfer belt 2 are flexed together. As a result, the second substrate 16 is divided along the second scribe line 11b.

Next, the third and fourth supporting members 7 and 8 are moved downward, and the first breaking lever 3 is moved. Move up. Then, as shown in FIG. 9, the first and second support members 4 and 5 are moved downward. Thereby, the substrate 10 is supported from above by the first and second support members 4 and 5.

Next, as shown in FIG. 10, the 2nd breaking lever 6 is moved upward. Thereby, the 2nd breaking lever 6 presses the board | substrate 10 upward through the conveyance belt 2. As a result, the substrate 10 and the conveyance belt 2 are flexed together, and the first substrate 15 is cut along the first score line 11a.

[Variation]

As mentioned above, although embodiment of this invention was described, this invention is not limited to these, Various changes can be made in the range which does not deviate from the meaning of this invention.

Variation 1

In the above embodiment, the first and third support members 4 and 7 are located upstream of the conveyance direction, and the second and fourth support members 5 and 8 are located downstream of the conveyance direction, but the positional relationship of the components is not particularly Limited to this. For example, the first and third support members 4 and 7 may be positioned on the downstream side in the conveying direction, and the second and fourth support members 5 and 8 may be positioned on the upstream side in the conveying direction.

Variation 2

In the above embodiment, the brittle material substrate 10 is a bonded substrate, but the brittle material substrate 10 is not particularly limited to this.

Claims (8)

A breaking device is a breaking device that breaks a brittle material substrate formed with a scribe line along the scribe line, and includes a conveying belt having a mounting surface on which the brittle material substrate is placed, It is configured to transport the brittle material substrate and has flexibility; the first and second support members are arranged above the mounting surface along the transport direction of the transport belt, and are configured to be liftable; the first The breaking lever is arranged between the first support member and the second support member above the mounting surface, and is configured to be liftable; the third and fourth support members are equal to the lower portion of the mounting surface. It is arranged along the conveying direction and is configured to be liftable; and a second breaking lever is arranged between the third support member and the fourth support member below the mounting surface and configured to be liftable; The third support member is disposed below the first support member via the transport belt, and the fourth support member is disposed below the second support member via the transport belt. The breaking device according to claim 1, wherein the brittle material substrate has an end portion defined by the scribe line and an end edge of the substrate, and a main body portion other than the end portion, the second support member and the The fourth support member is configured to be capable of holding the body portion together with the conveyance belt, and the first breaking lever is configured to be capable of pressing the end portion downward. The breaking device according to claim 1, wherein the first and second supporting members are configured to be movable along the conveying direction. The breaking device according to claim 2, wherein the first and second supporting members are configured to be movable along the conveying direction. The breaking device according to any one of claims 1 to 4, wherein the third and fourth supporting members are configured to be movable in the conveying direction. A cutting method is a method for breaking a brittle material substrate having a body portion and an end portion separated by a scribe line along the scribe line, and includes the following steps: (a) using a flexible The carrying belt carries the fragile material substrate; (b) the end portion is not clamped, and only the main body portion and the transport belt are supported and held from above and below; and (c) the end portion is pressed downward to make the above The end portion is flexed together with the transfer belt. The cutting method according to claim 6, wherein the brittle material substrate is a bonded substrate formed by bonding a first substrate and a second substrate, and the scribe line includes a first scribe line formed on the first substrate, And a second scribe line formed on the second substrate. The cutting method according to claim 7, wherein in the step (a), the brittle material substrate is arranged such that the first substrate becomes the upper side and the second substrate becomes the lower side, and the brittle material substrate is transported, and the In the step (c), the first substrate is divided along the first score line by flexing the end portion.