TWM608015U - Glass plate discarding device and glass plate manufacturing device equipped with the same - Google Patents

Abstract

The subject of this creation is to provide a glass plate discarding device that can make glass plates smooth and well separated and discarded by its own weight and a manufacturing device for glass plates provided with the same. The glass plate discarding device of this invention includes: a hopper 30, which is set in the middle of the conveying device 6 for conveying the glass plate G; and a cutter 40, which is set upstream of the hopper 30, on the glass plate G in the same direction as the conveying direction A Cracks are formed in the orthogonal direction; and the hopper 30 includes a plurality of movable rollers 31, and the downstream side descends by rotating around the axis Oa of the movable roller 31a at the upstream end, and the hopper 30 is conveyed by the conveying device 6 The conveying direction A of the glass plate G is inclined downward. When the horizontal length from the axis Oa to the most downstream end E of the hopper 30 is set to L, and the inclination angle centered on the axis Oa is set to θ, the glass plate When the thickness t of G is 0.1 mm to 2.0 mm, the inclination angle θ is set so that the relationship between the horizontal length L and the inclination angle θ, Ltanθ, is within the range of 100 mm or more and 500 mm or less.

Description

Glass plate discarding device and glass plate manufacturing device provided with the same

This creation is about a glass plate discarding device and a glass plate manufacturing device equipped with it.

In the step of manufacturing the glass plate, for example, when the glass plate is damaged, the damaged glass plate needs to be discarded. It is known that in order to discard the broken glass plate, the glass plate being conveyed is bent by its own weight, and a separation groove is formed in the bent portion of the glass plate, and a crack is formed from the separation groove and separated. (For example, refer to Patent Document 1). [Prior technical literature] [Patent literature]

[Patent Document 1] JP 2010-173867 A

[Problem to be solved by creation]

However, when the glass plate is cut by the separation tank by its own weight, if the load applied to the separation tank part is too small, there is a possibility that the glass plate cannot be cut by the separation tank. On the other hand, when the load applied to the part of the separation tank is too large, the glass plate is crushed and scattered, which affects the surrounding transport rollers and the like.

Therefore, the purpose of this creation is to provide a glass plate discarding device and a glass plate manufacturing device provided with the glass plate that can make the glass plates smooth and well separated and discarded by its own weight. [Technical means to solve the problem]

This creation includes the following components. (1) A glass plate discarding device, which includes: a conveying device that conveys the glass plate; a hopper, which is arranged in the middle of the aforementioned conveying device; and a scribe, which is arranged upstream of the aforementioned hopper and placed on the aforementioned glass plate. Cracks are formed in the direction orthogonal to the conveying direction; and the aforementioned hopper includes a plurality of movable rollers, and the downstream side descends by rotating around the axis of the aforementioned movable roller at the upstream end. The conveying direction of the aforementioned glass plate is inclined downward. When the horizontal length from the aforementioned axis to the most downstream end of the aforementioned hopper is set to L, and the inclination angle centered on the aforementioned axis is set to θ, the When the thickness is 0.1 mm to 2.0 mm, the inclination angle θ is set so that the relationship between the horizontal length L and the inclination angle θ, Ltanθ, is in the range of 100 mm or more and 500 mm or less. (2) A glass plate manufacturing device, which includes: a melting furnace, which melts the glass; a floating tank, which floats the molten glass sent from the aforementioned melting furnace on the molten metal to become a smooth glass plate; and slow cooling Furnace, which slowly cools the strip-shaped glass plate sent from the floating tank; and the glass plate discarding device described in (1) above is installed in the strip-shaped glass plate conveyed from the slow-cooling furnace Halfway through the conveying device. [The effect of creation]

According to the glass plate discarding device and the glass plate manufacturing device provided with the glass plate, the glass plate can be smoothly separated and discarded by its own weight.

Hereinafter, the implementation of this creation will be described in detail with reference to the drawings. First, the glass plate manufacturing device provided with the glass plate discarding device of this embodiment will be described. Fig. 1 is a perspective view showing the manufacturing device of the glass plate.

As shown in FIG. 1, the glass sheet manufacturing apparatus 1 provided with the glass sheet discarding device of this embodiment includes a melting furnace 2, a float tank 3, and a slow cooling furnace 4. The manufacturing device 1 is a device for manufacturing the glass plate G by the float method. In addition, the glass sheet discarding device of this embodiment is installed on the downstream side of the manufacturing device 1.

In the manufacturing apparatus 1, the molten glass Gm flows into the float bath 3 in the melting furnace 2. Then, in the float bath 3, the molten glass Gm floats on the molten metal (tin) M in the float bath 3 and flows, and becomes a smooth glass plate G. Then, the glass sheet G is fed into the slow cooling furnace 4 to be slowly cooled, and thereafter transported by a transport device 6 including a plurality of rollers 5, cut into a specific size, and sent out.

Fig. 2 is a schematic side view illustrating the glass plate discarding device of the present embodiment. As shown in FIG. 2, the glass plate discarding device 10 of this embodiment includes a crushing mechanism 20, a hopper 30, and a scribe 40. The crushing mechanism 20, the hopper 30, and the cutter 40 are installed in the middle of the conveying device 6 that conveys the strip-shaped glass sheet G fed from the manufacturing device 1 in the conveying direction A, and the hopper 30 is arranged on the upstream side of the crushing mechanism 20 , The cutter 40 is arranged on the upstream side of the hopper 30.

The crushing mechanism 20 has: a clamping roller 21, which includes a pair of metal rollers that clamp and send the glass plate G from top to bottom; and a hammer roller 22, which rotates the glass plate G sent by the clamping rollers 21 while rotating. broken. In this crushing mechanism 20, the glass plate G is crushed by the hammer roller 22, becomes glass scraps, and is discarded.

The hopper 30 provided on the upstream side of the crushing mechanism 20 includes a plurality of (5 in this example) movable rollers 31. The hopper 30 including the movable rollers 31 is lowered on the downstream side with the axis of the movable roller 31 at the upstream end as the center, and the entire hopper 30 is inclined downward with respect to the conveying direction A of the glass sheet G conveyed from the upstream side ( (Refer to the two-dot chain line in Figure 2). Thereby, the glass plate G conveyed from the upstream side can be sent out obliquely downward. In addition, the hopper 30 is provided with a protective cover 36 below it. Thereby, the lower side of the some movable roller 31 of the hopper 30 is covered with the protective cover 36, and is protected.

Figure 3 is a perspective view showing the crushing part arranged below the hopper. As shown in Fig. 3, a crushing part 32 is provided below the delivery end of the glass plate G delivered from the hopper 30. The crushing part 32 is formed by arranging a plurality of crushing tables 33, and the crushing table 33 has a crushing rod 35 erected by the legs 34. In this crushing part 32, the glass plate G sent out by the hopper 30 falls. Thereby, the glass plate G touches the crushing rod 35 of the crushing table 33, and the glass plate G is broken.

The scribing device 40 provided on the upstream side of the hopper 30 includes a scribing wheel 41 that moves in the width direction of the glass plate G. Furthermore, in the scriber 40, the scribing wheel 41 moves in the width direction of the glass plate G, and a crack is formed in the glass plate G.

The glass plate manufacturing device 1 manufactures the glass plate G under normal operation. Moreover, in the manufacturing apparatus 1, in the case of performing maintenance, etc., the discarding operation of using the glass plate discarding apparatus 10 to discard the strip-shaped glass plate G sent from the upstream is performed.

In the glass plate discarding device 10 of this embodiment, the first discarding operation and the second discarding operation can be performed. Hereinafter, the first discarding operation and the second discarding operation will be described. In addition, the first discarding operation is performed when a large amount of glass sheets G that are often sent out due to defects in the manufacturing device 1 etc. are discarded, and the second discarding operation is performed when the glass is temporarily removed for general maintenance and repairs. This is done when the plate G is generally discarded. Figure 4 is a schematic side view illustrating the operation of the glass plate discarding device. Fig. 5 is a schematic diagram showing the inclined hopper of the glass plate discarding device.

(First discarding operation) In the first discarding operation, the strip-shaped glass sheet G fed from the manufacturing device 1 of the glass sheet G is broken by the crushing mechanism 20 and discarded. Specifically, as the crushing mechanism 20 is driven, the pinch rollers 21 move toward each other, pinch the glass plates G and rotate in opposite directions to each other. Thereby, the glass plate G is sent out to the rotating hammer roller 22. Then, this glass plate G is broken by the hammer roller 22, becomes glass scraps, and is discarded.

(Second disposal operation) As shown in Fig. 4, in the second disposal operation, the strip-shaped glass plate G fed from the glass plate G manufacturing device 1 is cracked by the cutter 40, and the hopper 30 Driven into a tilted state. If so, the glass sheet G sent in is cut by its own weight at the location where the crack is formed, and sent out from the hopper 30 downward. Thereby, the band-shaped glass plate G sent in from the manufacturing apparatus 1 is cut into a specific length dimension below which is different from the general conveyance direction A, and is sent out.

The glass plate G sent from the hopper 30 is dropped on the crushing part 32 provided below the sending end. Thereby, the glass plate G touches the crushing rod 35 of the crushing table 33 and is crushed. Then, the glass scraps of the glass plate G broken by the crushing part 32 are conveyed by a conveying device (not shown) provided below the crushing part 32.

As shown in FIG. 5, the hopper 30 installed in the glass plate discarding device 10 of the present embodiment is tilted at an inclination angle θ by rotating around the axis Oa of the movable roller 31a at the upstream end and descending on the downstream side. . The inclination angle θ is the inclination angle of the straight line LA passing through the axis O of each movable roller 31 when the hopper 30 is rotated around the axis Oa of the movable roller 31a at the upstream end. In addition, the hopper 30 is tilted and the downstream side is lowered by the displacement height H. The displacement height H is the intersection between the straight line LB passing through the most downstream end E of the hopper 30 in the horizontal state and the straight line LA passing through the axis O of each movable roller 31 of the hopper 30 in the horizontal state and the inclined state. Height dimension. Moreover, when the horizontal length from the axis Oa of the movable roller 31a at the upstream end to the most downstream end E of the hopper 30 in a horizontal state is set to L, the horizontal length L, the inclination angle θ, and the displacement height H become The relationship of the following formula (1).

H=Ltanθ…(1)

Furthermore, in this embodiment, when the thickness t of the glass plate G fed from the manufacturing device 1 is 0.1 mm to 2.0 mm, the relationship between the horizontal length L and the inclination angle θ Ltanθ (=H) becomes 100 mm or more, Set the tilt angle θ in the range below 500 mm.

Here, when the thickness t of the glass plate G fed from the manufacturing device 1 is 0.1 mm to 2.0 mm, the creators adjust the inclination angle θ of the hopper 30, and adjust the glass plate G to be sent out along the hopper 30 The optimal inclination angle θ at which the crack formed by the scribe 40 is cut well and smoothly was investigated.

When the thickness t of the glass plate G is between 0.1 mm and 2.0 mm, and the relationship between the horizontal length L of the hopper 30 and the inclination angle θ Ltanθ is less than 100 mm, the moment due to its own weight given to the glass plate G is too small, and the glass The plate G is not cut at the crack formation position, and it is difficult to discard the glass plate G. In addition, when the relationship between the horizontal length L of the hopper 30 and the inclination angle θ, Ltanθ, is greater than 500 mm, the moment due to its own weight imparted to the glass plate G is too large, and the glass plate G is crushed at the crack formation site and scattered around. As a result, there is a risk that the transport roller 5 of the transport device 6 or the movable roller 31 of the hopper 30 may be damaged.

As a result, it can be seen that when the thickness t of the glass plate G is 0.1 mm to 2.0 mm, the inclination angle θ is set so that the relationship between the horizontal length L and the inclination angle θ, Ltanθ, is in the range of 100 mm or more and 500 mm or less, The glass plate G can be cut smoothly and well at the crack formation position. It can be seen that it is more preferable to set the relationship Ltanθ between the horizontal length L and the inclination angle θ to a range of 114 mm or more and 455 mm or less.

As explained above, in this embodiment, when the thickness of the glass plate G is 0.1 mm to 2.0 mm, it is set so that the relationship between the horizontal length L and the inclination angle θ, Ltanθ, is within the range of 100 mm or more and 500 mm or less Angle of inclination θ. In addition, by feeding the glass sheet G into the inclined hopper 30, an appropriate moment generated by its own weight can be imparted to the portion where the crack of the glass sheet G is formed. By this, it is possible to suppress the scattering of the glass sheet due to the cutting, and to smoothly cut and discard the glass plate G at the location where the crack is formed.

Furthermore, according to the glass plate manufacturing apparatus 1 provided with the glass plate discarding device 10, for example, the strip-shaped glass plate G can be smoothly discarded without interruption during maintenance and repairs such as equipment replacement.

In addition, below the delivery end of the glass sheet G delivered from the hopper 30, a crushing part 32 for crushing the glass sheet G that is delivered and contacted is provided. Therefore, the glass sheet G sent out from the hopper 30 can be crushed by the crushing part 32, and can be recovered easily.

In addition, the hopper 30 is provided with a protective cover 36 covering the lower side. Thereby, even if the glass plate G sent from the hopper 30 is broken and the glass pieces are scattered, the protective cover 36 can protect the movable roller 31 of the hopper 30 from the scattered glass pieces.

This creation is not limited to those of the above-mentioned embodiment, and the combination of the various components of the embodiment, or changes and applications made by those skilled in the art based on the description of the specification and known technologies are also those who implement the plan of this creation, and include Within the scope of protection.

For example, as shown in FIG. 6, the protective cover 37 which covers the upper side of the movable roller 31 of the hopper 30 may be made removable. In this case, the protective cover 37 is arranged at a standby position away from the upper part of the hopper 30 during the normal operation of manufacturing the glass sheet G, and during the second disposal operation in which the hopper 30 is tilted to discard the glass sheet G, it is arranged in the hopper 30 The protection position on the upper side. If so, by disposing the protective cover 37 at the protective position, the upper part of the hopper 30 is covered by the protective cover 37 and protected. In this way, by covering the upper side of the hopper 30 during the second disposal operation, even if the glass sheet G breaks on the movable roller 31 of the hopper 30 and the glass flakes are scattered, the movable roller 31 can be protected from the scattered glass flakes. harm.

In addition, in FIG. 6, the protective cover 37 is provided on the upper side of the movable roller 31 except for the movable roller 31a at the upstream end of the hopper 30, but the protective cover 37 can also be provided on the upper side of the hopper 30. The upper side of all movable rollers 31 is removable.

As described above, this manual discloses the following matters. (1) A device for discarding glass sheets, which includes: a conveying device that conveys glass sheets; a hopper, which is arranged in the middle of the aforementioned conveying device; and a scribe, which is arranged upstream of the aforementioned hopper and placed on the aforementioned glass plate. Cracks are formed in the direction orthogonal to the conveying direction; and the aforementioned hopper includes a plurality of movable rollers, and the downstream side descends by rotating around the axis of the aforementioned movable roller at the upstream end. The conveying direction of the aforementioned glass plate is inclined downward. When the horizontal length from the aforementioned axis to the most downstream end of the aforementioned hopper is set to L, and the inclination angle centered on the aforementioned axis is set to θ, the When the thickness is 0.1 mm to 2.0 mm, the inclination angle θ is set so that the relationship between the horizontal length L and the inclination angle θ, Ltanθ, is in the range of 100 mm or more and 500 mm or less.

According to the glass sheet discarding device of the above-mentioned (1) structure, by feeding the glass sheet into the inclined hopper, it is possible to impart an appropriate torque generated by its own weight to the formation portion of the crack of the glass sheet. With this, it is possible to suppress the scattering of the glass sheet due to the cutting, and to smoothly cut the glass sheet at the crack formation site and discard it.

(2) The glass plate discarding device of (1), wherein a crushing part is provided below the sending end of the glass plate sent from the hopper to crush the glass plate that is sent out and in contact.

According to the glass sheet discarding device of the above-mentioned (2) structure, the glass sheet sent from the hopper can be broken by the crushing part and can be easily recovered.

(3) The glass plate discarding device of (1) or (2), wherein a protective cover covering the lower side of the movable roller is provided in the hopper.

According to the glass plate disposal device of the above-mentioned (3) structure, even if the glass plate sent from the hopper is broken and the glass pieces are scattered, the movable roller of the hopper can be protected from the scattered glass pieces by the protective cover.

(4) The glass plate discarding device according to any one of (1) to (3), wherein the hopper is detachably provided with a protective cover covering the upper side of the movable roller.

According to the glass plate disposal device of the above (4), even if the glass plate sent from the hopper breaks on the upper side of the movable roller of the hopper and the glass flakes are scattered, the movable roller of the hopper can be protected from the scattered glass by the protective cover The harm of the film.

(5) A glass plate manufacturing device, which includes: a melting furnace, which melts glass; a floating tank, which floats the molten glass sent from the aforementioned melting furnace on the molten metal to become a smooth glass plate; and slow cooling Furnace, which slowly cools the strip-shaped glass plate sent from the floating tank; and the glass plate discarding device as in any one of (1) to (4) is installed in the strip-shaped glass conveyed from the slow-cooling furnace The aforementioned glass plate conveying device midway.

According to the glass plate manufacturing apparatus of the above-mentioned (5) structure, for example, the strip-shaped glass plate G can be discarded smoothly without interruption during maintenance and repairs such as equipment replacement.

This creation is explained in detail and with reference to specific implementation patterns, but it is obvious to those who are familiar with the technology that various changes or amendments can be made without departing from the spirit and scope of this creation. This application is based on the Japanese utility model registration application 2019-3795 filed on October 7, 2019, and its content is incorporated here as a reference.

1: Glass plate manufacturing equipment 2: melting furnace 3: Floating tank 4: Slow cooling furnace 5: Roller/conveying roller 6: Conveying device 10: Glass plate waste device 20: crushing mechanism 21: Clamping roller 22: Hammer Roll 30: Hopper 31, 31a: movable roller 32: Broken part 33: crushing table 34: Feet 35: Broken Rod 36, 37: Protective cover 40: Divider 41: Paddle wheel A: Transport direction E: The most downstream end G: Glass plate Gm: molten glass H: displacement height L: horizontal length LA: A straight line passing through the axis of each movable roller LB: The straight line passing through the most downstream end of the hopper in a horizontal state M: molten metal (tin) O, Oa: axis θ: Tilt angle

Fig. 1 is a perspective view showing a manufacturing device of a glass plate. Fig. 2 is a schematic side view illustrating the glass plate discarding device of this embodiment. Figure 3 is a three-dimensional view showing the crushing part arranged under the hopper. Figure 4 is a schematic side view illustrating the operation of the glass plate discarding device. Figure 5 is a schematic diagram showing the inclined hopper of the glass plate disposal device. Figure 6 is a schematic side view showing a modification of the glass plate discarding device.

5: Roller/conveying roller

6: Conveying device

10: Glass plate waste device

20: crushing mechanism

21: Clamping roller

22: Hammer Roll

30: Hopper

31: Movable roller

32: Broken part

33: crushing table

34: Feet

35: Broken Rod

36: Protective cover

40: Divider

41: Paddle wheel

A: Transport direction

G: Glass plate

Claims (5)

A glass plate discarding device, comprising: a conveying device that conveys the glass plate; a hopper, which is arranged in the middle of the aforementioned conveying device; and a scribe, which is arranged upstream of the aforementioned hopper and in the same direction as the conveying direction of the aforementioned glass plate Cracks are formed in the orthogonal direction; and the hopper includes a plurality of movable rollers, and the downstream side descends by rotating around the axis of the movable roller at the upstream end. The hopper is relative to the glass conveyed by the conveying device. The conveying direction of the plate is inclined downward. When the horizontal length from the aforementioned axis to the most downstream end of the aforementioned hopper is set to L, and the inclination angle centered on the aforementioned axis is set to θ, the thickness of the aforementioned glass plate is 0.1 When mm to 2.0 mm, the inclination angle θ is set so that the relationship between the horizontal length L and the inclination angle θ, Ltanθ, is in the range of 100 mm or more and 500 mm or less. For example, the glass plate discarding device of claim 1, wherein a crushing part for crushing the glass plate sent out and in contact is provided below the sending end of the glass plate sent from the hopper. The glass plate discarding device of claim 1 or 2, wherein the hopper is provided with a protective cover covering the lower side of the movable roller. For the glass plate discarding device of claim 1 or 2, wherein the hopper is detachably provided with a protective cover covering the upper side of the movable roller. A glass plate manufacturing device, which includes: a melting furnace, which melts glass; a floating tank, which floats the molten glass sent from the aforementioned melting furnace on the molten metal to become a smooth glass plate; and a slow cooling furnace, which Slowly cool the strip-shaped glass plate sent from the aforementioned floating tank; and if the glass plate discarding device of any one of claims 1 to 4 is installed in the strip-shaped glass plate conveyed from the aforementioned slow cooling furnace Halfway through the conveying device.

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