JP3224453U - Glass plate disposal device and glass plate manufacturing device provided with the same - Google Patents

Abstract

A glass sheet discarding apparatus capable of smoothly and satisfactorily separating a glass sheet by its own weight and discarding the same, and an apparatus for manufacturing a glass sheet provided with the same. A hopper provided with a plurality of movable rolls (31) is provided in the middle of a transfer device (6) for transferring a glass sheet (G), and is tilted downward with respect to a transfer direction (A) of the glass sheet (G) when the downstream side is lowered. 30 and a scriber 40 provided upstream of the hopper 30 and forming a crack in the glass sheet G in a direction perpendicular to the transport direction A. The hopper 30 rotates around the axis of the movable roll at the upstream end. When the horizontal length from the axis to the most downstream end is L and the angle of inclination about the axis is θ, the thickness t of the glass plate G is 0.1 mm. The inclination angle θ is set so that the relationship Ltanθ between the horizontal length L and the inclination angle θ is in a range of 100 mm or more and 500 mm or less when the distance is 2.0 mm to 2.0 mm. [Selection diagram] FIG.

Description

  The present invention relates to an apparatus for discarding glass sheets and an apparatus for manufacturing glass sheets having the same.

  In the process of manufacturing a glass sheet, for example, when the glass sheet is damaged, it is necessary to discard the damaged glass sheet. In order to discard the damaged glass sheet, the glass sheet to be conveyed is bent by its own weight, a separation groove is formed in a bent portion of the glass sheet, and a crack is formed from the separation groove to be separated. It is known (for example, see Patent Document 1).

JP 2010-173867 A

  When the glass plate is cut by the separation groove by its own weight, if the load applied to the separation groove portion is too small, the glass plate may not be cut by the separation groove. On the other hand, if the load applied to the separation groove portion is too large, the glass plate is crushed and scattered, which affects the surrounding transport rolls and the like.

  Therefore, an object of the present invention is to provide a glass sheet discarding apparatus capable of smoothly and satisfactorily separating and discarding a glass sheet by its own weight, and an apparatus for manufacturing a glass sheet having the same.

The present invention has the following configuration.
(1) a transfer device for transferring a glass plate;
A hopper provided with a plurality of movable rolls that are provided in the middle of the transfer device and are lowered on the downstream side to be tilted downward with respect to the transfer direction of the glass plate transferred by the transfer device,
A scriber that is provided upstream of the hopper and forms a crack in the glass plate in a direction perpendicular to the transport direction,
With
The hopper,
It is inclined by rotating around the axis of the movable roll at the upstream end and lowering the downstream side,
When the horizontal length from the axis to the most downstream end is L, and the inclination angle about the axis is θ, the horizontal length is 0.1 mm to 2.0 mm when the thickness of the glass plate is 0.1 mm to 2.0 mm. The inclination angle θ is set so that the relationship Ltanθ between L and the inclination angle θ is in a range of 100 mm or more and 500 mm or less.
Glass plate disposal equipment.
(2) a melting furnace for melting glass;
A float bath that floats the molten glass sent from the melting furnace to the molten metal and forms a smooth glass plate,
An annealing furnace that gradually cools the band-shaped glass plate sent from the float bath,
With
The glass plate disposal device according to the above (1) is provided in the middle of a transport device that transports the band-shaped glass plate sent out from the lehr.
Glass plate manufacturing equipment.

  ADVANTAGE OF THE INVENTION According to the glass plate disposal apparatus of this invention and the manufacturing apparatus of the glass plate provided with the same, a glass plate can be separated smoothly and satisfactorily by its own weight, and can be disposed.

It is a perspective view which shows the manufacturing apparatus of a glass plate. It is an outline side view explaining a glass board disposal device concerning this embodiment. It is a perspective view which shows the crushing part installed under the hopper. It is an outline side view explaining operation of a glass board disposal device. It is a schematic diagram which shows the inclined hopper of the glass plate disposal device. It is a schematic side view which shows the modification of a glass plate disposal apparatus.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
First, a glass sheet manufacturing apparatus provided with the glass sheet disposal apparatus according to the present embodiment will be described.
FIG. 1 is a perspective view showing an apparatus for manufacturing a glass plate.

  As shown in FIG. 1, a glass sheet manufacturing apparatus 1 provided with a glass sheet disposal apparatus according to the present embodiment includes a melting furnace 2, a float bath 3, and an annealing furnace 4. This manufacturing apparatus 1 is an apparatus for manufacturing a glass plate G by a float method. Further, the glass plate disposal device according to the present embodiment is provided downstream of the manufacturing device 1.

  In the manufacturing apparatus 1, the glass Gm melted in the melting furnace 2 flows into the float bath 3. Then, in the float bath 3, the molten glass Gm flows while floating on the molten metal (tin) M in the float bath 3 to form a smooth glass plate G. Then, the glass sheet G is sent to the annealing furnace 4 where it is gradually cooled, and thereafter is conveyed by the conveying device 6 composed of a plurality of rolls 5, cut into a predetermined size and sent out.

FIG. 2 is a schematic side view illustrating the glass sheet disposal apparatus according to the present embodiment.
As shown in FIG. 2, the glass sheet disposal device 10 according to the present embodiment includes a crushing mechanism 20, a hopper 30, and a scriber 40. The crushing mechanism 20, the hopper 30, and the scriber 40 are provided in the middle of the transporting device 6 that transports the band-shaped glass plate G sent from the manufacturing apparatus 1 in the transporting direction A. The scriber 40 is arranged on the upstream side, and is arranged on the upstream side of the hopper 30.

  The crushing mechanism 20 has a holding roll 21 composed of a pair of metal rolls for holding and sending the glass sheet G from above and below, and a hammer roll 22 for rotating and crushing the glass sheet G sent by the holding rolls 21. are doing. In the crushing mechanism 20, the glass plate G is crushed by the hammer roll 22, turned into a cullet, and discarded.

  The hopper 30 provided on the upstream side of the crushing mechanism 20 includes a plurality (five in this example) of movable rolls 31. The hopper 30 having these movable rolls 31 is entirely lowered with respect to the transport direction A of the glass sheet G transported from the upstream side by lowering the downstream side around the axis of the movable roll 31 at the upstream end. It is tilted downward (see the two-dot chain line in FIG. 2). Thus, the glass sheet G conveyed from the upstream side can be sent obliquely downward. Further, a protective cover 36 is provided below the hopper 30. Thereby, the lower side of the plurality of movable rolls 31 of the hopper 30 is covered and protected by the protective cover 36.

FIG. 3 is a perspective view showing a crushing unit installed below the hopper.
As shown in FIG. 3, a crushing part 32 is provided below the sending end of the glass plate G by the hopper 30. The crushing unit 32 is configured by arranging a plurality of crushing tables 33, and the crushing table 33 has a crushing bar 35 erected by legs 34. The glass sheet G sent out by the hopper 32 falls into the crushing section 32. Thereby, the glass plate G hits the crushing rod 35 of the crushing table 33, and the glass plate G is crushed.

  The scriber 40 provided on the upstream side of the hopper 30 includes a scribing wheel 41 that moves in the width direction of the glass sheet G. Then, in the scriber 40, the scribing wheel 41 moves in the width direction of the glass sheet G, thereby forming a crack in the glass sheet G.

  The glass sheet manufacturing apparatus 1 manufactures the glass sheet G in the normal operation. Further, when performing maintenance or the like, the manufacturing apparatus 1 performs a discarding operation in which the glass sheet discarded from the upstream is discarded by the glass sheet discarding device 10.

In the glass plate disposal apparatus 10 according to the present embodiment, it is possible to perform the first disposal operation and the second disposal operation. Hereinafter, the first disposal operation and the second disposal operation will be described.
Note that the first disposal operation is performed when a large amount of the glass plate G that is constantly sent out is disposed of in a large amount because a defect occurs in the manufacturing apparatus 1 or the like. This is performed when the board G is normally discarded.
FIG. 4 is a schematic side view for explaining the operation of the glass sheet disposal apparatus. FIG. 5 is a schematic view showing an inclined hopper of the glass sheet disposal device.

(First disposal operation)
In the first crushing operation, the band-shaped glass sheet G sent from the glass sheet G manufacturing apparatus 1 is crushed by the crushing mechanism 20 and discarded. Specifically, when the crushing mechanism 20 is driven, the sandwiching rolls 21 move in directions approaching each other, and rotate in opposite directions while sandwiching the glass plate G. Thereby, the glass plate G is sent out to the rotating hammer roll 22. Then, this glass plate G is crushed by the hammer roll 22 to be cullet and discarded.

(Second disposal operation)
As shown in FIG. 4, in the second disposal operation, cracks are formed by the scriber 40 on the strip-shaped glass sheet G sent from the manufacturing apparatus 1 for the glass sheet G, and the hopper 30 is driven to be inclined. It becomes. Then, the fed glass sheet G is cut at a crack formation location by its own weight, and is sent downward from the hopper 30. As a result, the belt-shaped glass sheet G sent from the manufacturing apparatus 1 is cut into a predetermined length dimension downward different from the normal conveying direction A and sent out.

  The glass sheet G sent out by the hopper 30 is dropped to a crushing section 32 installed below the sending end. As a result, the glass plate G hits the crushing bar 35 of the crushing table 33 and is crushed. The cullet of the glass plate G crushed by the crushing unit 32 is transferred by a transfer device (not shown) provided below the crushing unit 32.

  As shown in FIG. 5, the hopper 30 provided in the glass sheet discarding apparatus 10 according to the present embodiment rotates about the axis Oa of the movable roll 31a at the upstream end and descends on the downstream side to tilt. Tilted at an angle θ. The inclination angle θ is the inclination angle of the straight line LA passing through the axis O of each movable roll 31 when the hopper 30 is inclined by rotating about the axis Oa of the movable roller 31a at the upstream end. The hopper 30 is inclined so that the downstream side is lowered at the displacement height H. The displacement height H is a height between intersections with a vertical line LB passing through the most downstream end E of the hopper 30 in the horizontal state and a line LA passing through the axis O of each movable roll 31 of the hopper 30 in the horizontal state and the inclined state. The dimensions. When the horizontal length from the axis Oa of the movable roll 31a at the upstream end to the most downstream end E of the hopper 30 in the horizontal state is L, the horizontal length L, the inclination angle θ, and the displacement height H are represented by the following equations. (1).

  H = Ltan θ (1)

  In the present embodiment, when the thickness t of the glass sheet G fed from the manufacturing apparatus 1 is 0.1 mm to 2.0 mm, the relationship Ltanθ (= H) between the horizontal length L and the inclination angle θ is 100 mm. As described above, the inclination angle θ is set so as to be within the range of 500 mm or less.

  Here, the present inventors adjust the inclination angle θ of the hopper 30 when the thickness t of the glass sheet G fed from the manufacturing apparatus 1 is 0.1 mm to 2.0 mm, and move the glass sheet G along the hopper 30. The optimum inclination angle θ at which the glass sheet G to be sent out was cut smoothly and favorably at the formation point of the crack formed by the scriber 40 was examined.

  When the relationship Ltanθ between the horizontal length L of the hopper 30 and the inclination angle θ is smaller than 100 mm when the thickness t of the glass plate G is 0.1 mm to 2.0 mm, the moment due to the own weight given to the glass plate G Was too small, the glass sheet G was not cut at the place where the crack was formed, and it was difficult to discard the glass sheet G. When the relationship Ltanθ between the horizontal length L of the hopper 30 and the inclination angle θ is larger than 500 mm, the moment due to the weight applied to the glass sheet G is too large, and the glass sheet G is crushed at the crack forming portion and becomes There is a possibility that the particles may scatter and damage the transport roll 5 of the transport device 6 and the movable roll 31 of the hopper 30.

  As a result, 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 Ltan θ between the horizontal length L and the inclination angle θ is in the range of 100 mm or more and 500 mm or less. By setting, it turned out that the glass plate G is cut | disconnected favorable and smoothly at the location where a crack is formed. In particular, it has been found that the relationship Ltanθ between the horizontal length L and the inclination angle θ is more preferably in the range of 114 mm or more and 455 mm or less.

  As described above, in the present embodiment, when the thickness of the glass plate G is 0.1 mm to 2.0 mm, the relationship Ltan θ between the horizontal length L and the inclination angle θ is 100 mm or more and 500 mm or less. The inclination angle θ is set to be within the range. Then, by feeding the glass sheet G into the inclined hopper 30, an appropriate moment due to its own weight can be imparted to the crack forming portion of the glass sheet G. Thereby, the glass plate G can be cut smoothly at the crack formation position and discarded while suppressing scattering of the glass pieces due to the cutting.

  According to the glass sheet manufacturing apparatus 1 provided with the glass sheet discarding apparatus 10, for example, at the time of maintenance such as replacement of facilities, the strip-shaped glass sheet G can be smoothly discarded without interruption. .

  Further, a crushing section 32 for crushing the glass sheet G that is sent and contacted is provided below the sending end of the glass sheet G by the hopper 30. Therefore, the glass plate G sent out by the hopper 30 can be crushed by the crushing part 32 and easily collected.

  The hopper 30 is provided with a protective cover 36 that covers the lower side. Thereby, even if the glass plate G sent out by the hopper 30 is crushed and the glass pieces are scattered, the movable roll 31 of the hopper 30 can be protected from the scattered glass pieces by the protective cover 36.

  As described above, the present invention is not limited to the above-described embodiment, and a person skilled in the art can modify and apply the configuration based on the combination of the components of the embodiment with each other, the description in the specification, and the well-known technology. The present invention is also planned and is included in the scope for which protection is sought.

  For example, as shown in FIG. 6, the hopper 30 may be configured such that a protective cover 37 that covers the upper side of the movable roll 31 is detachable. In this case, the protective cover 37 is disposed at a standby position deviated from above the hopper 30 during the normal operation of manufacturing the glass sheet G, and the hopper 30 is tilted to dispose the glass sheet G during the second disposal operation. It is located in a protection position above 30. By disposing the protection cover 37 at this protection position, the hopper 30 is protected by being covered with the protection cover 37 at the upper side. In this manner, by covering the upper side of the hopper 30 during the second disposal operation, even if the glass sheet G is broken on the movable roll 31 of the hopper 30 and the glass piece is scattered, the movable roll 31 is removed from the scattered glass piece. Can be protected.

  In FIG. 6, the protective cover 37 is detachable above the movable roll 31 except for the movable roll 31 a at the upstream end of the hopper 30, but the protective cover 37 is attached above all the movable rolls 31 of the hopper 30. It may be detachable.

As described above, the following items are disclosed in this specification.
(1) a transfer device for transferring a glass plate;
A hopper provided with a plurality of movable rolls that are provided in the middle of the transfer device and are lowered on the downstream side to be tilted downward with respect to the transfer direction of the glass plate transferred by the transfer device,
A scriber that is provided upstream of the hopper and forms a crack in the glass plate in a direction perpendicular to the transport direction,
With
The hopper,
It is inclined by rotating around the axis of the movable roll at the upstream end and lowering the downstream side,
When the horizontal length from the axis to the most downstream end is L, and the inclination angle about the axis is θ, the horizontal length is 0.1 mm to 2.0 mm when the thickness of the glass plate is 0.1 mm to 2.0 mm. The inclination angle θ is set so that the relationship Ltanθ between L and the inclination angle θ is in a range of 100 mm or more and 500 mm or less.
Glass plate disposal equipment.

  According to the glass sheet discarding device having the configuration (1), the glass sheet is fed into the inclined hopper, so that an appropriate moment due to its own weight can be applied to the crack forming portion of the glass sheet. This makes it possible to cut the glass plate smoothly at the location where the crack is formed and to discard the glass plate while suppressing scattering of the glass piece due to the cutting.

(2) Below the sending end of the glass plate by the hopper, a crushing unit for crushing the glass plate sent and contacted is provided.
The glass plate disposal device according to (1).

  According to the glass plate disposal device having the configuration (2), the glass plate sent out by the hopper is crushed by the crushing unit and can be easily collected.

(3) The hopper is provided with a protective cover that covers a lower side.
The glass plate disposal device according to (1) or (2).

  According to the glass plate disposal apparatus having the configuration (3), even if the glass plate sent out by the hopper is crushed and the glass fragments are scattered, the movable roll of the hopper can be protected from the glass fragments scattered by the protective cover.

(4) The hopper is provided with a detachable protective cover for covering the upper side.
The glass plate disposal device according to any one of (1) to (3).

  According to the glass sheet discarding device of the above configuration (4), even if the glass sheet sent out by the hopper is broken on the upper side of the hopper and the glass pieces are scattered, the movable roll of the hopper is removed from the glass pieces scattered by the protective cover. Can be protected.

(5) a melting furnace for melting glass;
A float bath that floats the molten glass sent from the melting furnace to the molten metal and forms a smooth glass plate,
An annealing furnace that gradually cools the band-shaped glass plate sent from the float bath,
With
(1) The glass sheet disposal device according to any one of (1) to (4) is provided in the middle of a transport device that transports the band-shaped glass plate sent out from the lehr.
Glass plate manufacturing equipment.

  According to the apparatus for manufacturing a glass sheet having the configuration of the above (5), for example, at the time of maintenance such as replacement of equipment, the strip-shaped glass sheet can be smoothly discarded without interruption.

REFERENCE SIGNS LIST 1 Glass plate manufacturing device 2 Melting furnace 3 Float bath 4 Annealing furnace 6 Conveying device 10 Glass plate disposal device 30 Hopper 31, 31a Movable roll 32 Crushing portion 36, 37 Protective cover 40 Scriber A Transport direction E Downstream end G Glass plate Gm Molten glass L Horizontal length M Molten metal O, Oa Axis θ Inclination angle

Claims (5)

A transfer device for transferring the glass plate,
A hopper provided with a plurality of movable rolls that are provided in the middle of the transfer device and are lowered on the downstream side to be tilted downward with respect to the transfer direction of the glass plate transferred by the transfer device,
A scriber that is provided upstream of the hopper and forms a crack in the glass plate in a direction perpendicular to the transport direction,
With
The hopper,
It is inclined by rotating around the axis of the movable roll at the upstream end and lowering the downstream side,
When the horizontal length from the axis to the most downstream end is L, and the inclination angle about the axis is θ, the horizontal length is 0.1 mm to 2.0 mm when the thickness of the glass plate is 0.1 mm to 2.0 mm. The inclination angle θ is set so that the relationship Ltanθ between L and the inclination angle θ is in a range of 100 mm or more and 500 mm or less.
Glass plate disposal equipment. Below the sending end of the glass plate by the hopper, a crushing unit for crushing the glass plate sent and contacted is provided,
The glass plate disposal device according to claim 1. The hopper is provided with a protective cover that covers a lower side,
The glass plate disposal device according to claim 1 or 2. A protective cover for covering the upper side is detachably provided on the hopper,
The glass plate disposal device according to claim 1. A melting furnace for melting glass;
A float bath that floats the molten glass sent from the melting furnace to the molten metal and forms a smooth glass plate,
An annealing furnace that gradually cools the band-shaped glass plate sent from the float bath,
With
The glass sheet disposal device according to any one of claims 1 to 4, wherein the glass plate disposal device is provided in the middle of a transport device that transports the band-shaped glass plate sent out from the lehr.
Glass plate manufacturing equipment.

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