TWI716581B - Method and device for manufacturing plate glass - Google Patents

Abstract

The present invention is to provide a method for manufacturing plate glass and a manufacturing device. The first main surface has a scribe line, and the second main surface opposite to the first main surface is placed in contact with the protective sheet. The raw glass (plate glass) on the sheet is broken and divided along the scribing line. The method does not suck and wind a part of the protective sheet, and can stably break the sheet glass. Glass powder etc. are absorbed and removed.

By breaking and dividing the mechanism part (10), the second main surface (Gb) is pressed along the scribe line (L) while sandwiching the protective sheet (S), thereby performing the breaking and dividing of the plate glass (G), In addition, the dust collecting mechanism (30) collects dust from the glass powder generated when the plate glass (G) is broken and divided from the first main surface side (Ga); the dust collecting mechanism (30) is capable of collecting dust. Choose between two types of operation modes consisting of dust mode and standby mode. The dust collection mode has a predetermined attractive force for collecting dust from glass powder; the standby mode has a relatively weaker than the predetermined attractive force. Attractive.

Description

Method and device for manufacturing plate glass

The present invention relates to the technology of the manufacturing method and manufacturing apparatus of the plate glass, and more specifically, to the technology for sucking and removing the glass powder and the like generated when the split glass is broken.

In recent years, for example, the plate glass used in flat screens such as liquid crystal display devices or organic EL (organic light-emitting diode) display devices, for reasons such as cost reduction, is the use of larger size plate glass (hereinafter, Appropriately described as "raw glass") It is made by breaking and dividing it into predetermined dimensions.

Here, as a method of breaking and dividing the raw glass, in the past, a dividing line (scribing line) was formed in advance on one of the main surfaces of the raw glass, and then pressing along the scribing line to break the original glass. Material glass.

However, in such a breaking and dividing method, there is a problem that damage is easily formed on the main surface of the raw glass due to the glass frit generated when the raw glass is broken and divided along the scribe line.

Here, a technique to solve such a problem is disclosed in "Patent Document 1", for example.

Specifically, the above-mentioned "Patent Document 1" discloses a technology related to a glass frit removal device. The glass frit removal device used to remove the glass frit generated during cutting is installed along the The cutting line (scribing line) is a substrate cutting device that cuts the glass substrate (raw glass), and it is characterized by having a suction part and a pair of blowing parts, the suction part is tied to the scribe line It is connected to the vacuum suction means and is used to suck the glass powder; the pair of blowing parts are arranged on the two outer sides of the suction part in a line symmetry with the scribe line as the center, and are connected to the gas supply The means simultaneously blows the glass powder toward the suction part by strongly blowing and supplying gas to the raw glass.

[Prior technical literature] 〔Patent Literature〕

Patent Document 1: Japanese Patent Application Publication No. 2008-94690

By installing the glass frit removal device shown in the above-mentioned "Patent Document 1", it is possible to effectively absorb and remove the glass frit generated when the raw glass is broken along the scribe line to prevent the main surface of the raw glass Damage is formed on the surface, and the quality of the plate glass produced can be improved as the final product.

However, for example, for raw glass that has been previously placed on a protective sheet for preventing damage, the area of the protective sheet is generally The original glass is still wide, and the protective sheet is exposed from the periphery of the original glass.

In such a case, for example, when the removal device is evacuated from the original glass after the breaking operation of the original glass is completed, a part of the protective sheet exposed from the periphery of the original glass may be sucked by the removal device.

As a result, a part of the protective sheet is entangled in the above-mentioned removal device, causing an accident that induces the entire manufacturing device, and it may be difficult to achieve the quality improvement of the produced plate glass as the final product.

The present invention is developed in view of the problems of the current situation shown above, and is to provide a method and device for manufacturing plate glass, which has a scribe line on the first main surface and is opposite to the first main surface The second main surface of the side is a raw glass (plate glass) placed on the protective sheet in contact with the protective sheet, and is a method of manufacturing sheet glass in which the protective sheet is broken and divided along the scribe line. Part of it is sucked and caught, and it is a problem to be able to stably absorb and remove glass powders and the like generated when the plate glass is broken.

The problem to be solved by the present invention is as described above, and then the means to solve the problem will be explained.

That is, in the method for manufacturing plate glass of the present invention, the first main surface has a scribe line, and the second main surface opposite to the first main surface is placed on the protective sheet in contact with the protective sheet. The method of manufacturing plate glass in which the plate glass on the sheet is broken and divided along the scribe line, It is characterized in that: the second main surface is pressed along the scribe line while sandwiching the protective sheet by the breaking and dividing means, thereby performing the breaking and dividing of the plate glass, and the dust collecting means The first main surface side collects dust from the glass powder generated when the sheet glass is broken and divided; the dust collecting means can select two operation modes consisting of a dust collection mode and a standby mode. The dust collection mode has a predetermined attractive force for collecting dust of the glass powder; the standby mode has an attractive force that is relatively weaker than the predetermined attractive force.

According to the manufacturing method of the sheet glass formed by such a structure, the operation mode of the dust collecting means is used as the dust collecting mode only when the sheet glass is broken and divided, so that the breakage of the sheet glass can be stably divided. In addition, in addition to the above-mentioned breaking and dividing operations, by constantly setting the operation mode of the dust collection means to the standby mode, it is possible to prevent part of the protective sheet from being sucked in and caught. It can also prevent the glass powder remaining in the nozzle from being attached to the plate glass due to falling.

As a result, it is possible to improve the quality of the produced plate glass as a final product without causing an accident as a whole of the manufacturing apparatus of the plate glass.

In addition, in the method of manufacturing sheet glass of the present invention, the dust collecting means includes: a suction nozzle serving as a suction port for the glass powder, a piping member communicating with the suction nozzle, and a piping member for adjusting the piping member The gate plate with the opening area is better.

With such a structure, because it can choose a dust collector The operation mode of the segment does not need to be equipped with a large operation mode switching device, for example, it can be realized by forming a simple mechanism by the gate plate, so it is economical.

In addition, in the method of manufacturing plate glass of the present invention, the shutter plate is formed with a large notch and a small notch formed by reducing the diameter of the large notch. The shutter plate is formed by using The large notch is moved toward the end of the piping member to set the dust collecting means to the dust collection mode. On the other hand, the shutter plate moves the small notch toward the end of the piping member, It is preferable to set the dust collecting means to the standby mode.

In this way, in the present invention, a movable gate plate with large and small holes is provided, and the position of the gate plate is changed as a switching mechanism for the operation mode constituting the dust collection means. Switching control does not require complicated operating procedures, so it is economical.

In addition, in the method of manufacturing plate glass of the present invention, the inner diameter of the small notch is preferably 1/4 or more and 1/3 or less with respect to the inner diameter of the large notch.

With such a configuration, when the operation mode of the dust collection means is switched to the standby mode, not only does it not suck and wind a part of the protective sheet, but on the contrary, it can also be temporarily stored in the header container. To the extent that glass powder, etc. does not fall from the mouth of the suction nozzle, the suction pressure of the dust collection means is effectively suppressed.

Furthermore, in the method of manufacturing plate glass of the present invention, the above The dust collection means includes: a header container connected to the piping member and a dust collector connected to the header container; the header container is connected to an air lock damper with an opening and closing function; in the dust collection mode, the above The air brake damper is in the off state, and in the standby mode, the air brake damper is in the on state.

By having such a configuration, for example, when the operation mode of the dust collection means is switched to the standby mode, the air lock damping is used to reduce the inside of the header container whose negative pressure is rapidly increased due to the suction force of the dust collector By opening, the negative pressure in the header container can be suppressed within a predetermined pressure.

In addition, the apparatus for manufacturing plate glass of the present invention has a scribe line on the first main surface, and the second main surface opposite to the first main surface is placed on the protective sheet so as to be in contact with the protective sheet The upper plate glass is a device for manufacturing a plate glass that is broken and divided along the scribe line, which is characterized by being provided with: a breaking and dividing means and a dust collecting means. The breaking and dividing means is formed by sandwiching the protective sheet while moving along The scribing line presses the second main surface, thereby performing the fracture and division of the plate glass; the dust collecting means is used to remove the glass powder generated when the plate glass is broken and divided from the first main surface side Dust collection; the above-mentioned dust collection means can select two types of operation modes consisting of a dust collection mode and a standby mode. The dust collection mode has a predetermined attractive force for collecting dust from the glass powder ; This standby mode has a relatively weaker attractive force than the aforementioned predetermined attractive force.

The manufacturing equipment of plate glass formed based on such a structure By using the operation mode of the dust collection means as the dust collection mode only when the sheet glass is broken and divided, it is possible to stably attract and remove the glass powder generated when the sheet glass is broken. In addition, in addition to the above-mentioned breaking and dividing operations, by constantly setting the operation mode of the dust collection means to the standby mode, it is possible to prevent a part of the protective sheet from being sucked and entangled, and it is possible to prevent the glass powder remaining in the suction nozzle Etc., it is attached to the plate glass due to falling.

As a result, it is possible to improve the quality of the produced plate glass as a final product without causing an accident as a whole of the manufacturing apparatus of the plate glass.

In addition, in the manufacturing apparatus of the sheet glass of the present invention, the dust collecting means includes a suction nozzle serving as a suction port of the glass powder, a piping member communicating with the suction nozzle, and a pipe member for adjusting the piping member The gate plate with the opening area is better.

With such a structure, since the operation mode of the dust collection means can be selected, it is not necessary to additionally provide a large operation mode switching device, for example, it can be realized by forming a simple mechanism by the gate plate, so it is economical.

In addition, in the plate glass manufacturing apparatus of the present invention, the shutter plate is formed with a large notch and a small notch formed by reducing the diameter of the large notch. The shutter plate is formed by using The large notch is moved toward the end of the piping member to set the dust collecting means to the dust collection mode. On the other hand, the shutter plate moves the small notch toward the end of the piping member, Make the above dust collection means It is better to set to the above standby mode.

In this way, in the present invention, a movable gate plate with large and small holes is provided, and the position of the gate plate is changed as a switching mechanism for the operation mode constituting the dust collection means. Switching control does not require complicated operating procedures, so it is economical.

Moreover, in the plate glass manufacturing apparatus of the present invention, the inner diameter of the small notch is preferably 1/4 or more and 1/3 or less with respect to the inner diameter of the large notch.

With such a configuration, when the operation mode of the dust collection means is switched to the standby mode, not only does it not suck and wind a part of the protective sheet, but on the contrary, it can also be temporarily stored in the header container. To the extent that glass powder, etc. does not fall from the mouth of the suction nozzle, the suction pressure of the dust collection means is effectively suppressed.

In addition, in the plate glass manufacturing apparatus of the present invention, the dust collecting means includes: a collecting container connected to the piping member, and a dust collecting machine connected to the collecting container; and the collecting container is connected with an opening and closing device. Functional air lock damping; in the dust collection mode, the air lock damping is turned off, and in the standby mode, the air lock damping is turned on.

By having such a configuration, for example, when the operation mode of the dust collection means is switched to the standby mode, the air lock damping is used to reduce the inside of the header container whose negative pressure is rapidly increased due to the suction force of the dust collector Open, so that the negative pressure in the header container can be suppressed to a predetermined Within pressure.

As the effects of the present invention, the following effects can be achieved.

That is, according to the manufacturing method and manufacturing apparatus of the plate glass of the present invention, a part of the protective sheet is not sucked in and entangled, and the glass powder and the like generated when the plate glass is broken and divided can be stably sucked and removed.

10‧‧‧Fracturing and dividing mechanism (breaking and dividing means)

21‧‧‧Groove Brush

30‧‧‧Dust collection mechanism department (dust collection means)

31‧‧‧Nozzle

31A‧‧‧Nozzle body

31B‧‧‧Nozzle mouth

33‧‧‧Air duct (piping component)

34‧‧‧Heading Container

35‧‧‧Air guide hose

36‧‧‧Dust Collector

37‧‧‧Airlock Damping

38‧‧‧Gate Plate

38A‧‧‧Large hole

38B‧‧‧Small hole

G‧‧‧Plate glass

Ga‧‧‧First Main Side

Gb‧‧‧Second main surface

L‧‧‧ Secant

S‧‧‧Protection sheet

Fig. 1 is a schematic diagram showing the overall configuration of a plate glass manufacturing apparatus according to an embodiment of the present invention.

Figure 2 is a diagram showing the overall configuration of the dust collection mechanism, and is a schematic diagram viewed from the direction of arrow B in Figure 1.

Figure 3 is a view showing the inside of the nozzle body of the dust collection mechanism viewed from the direction of arrow C in Figure 2, where (a) is a cross-sectional view showing the state when the "dust collection mode" is displayed; b) is a cross-sectional view showing the state of "standby mode".

Figure 4 is a diagram showing the state of the manufacturing device during the breaking and dividing operation in a sequential manner, where (a) is a schematic diagram showing the state of the plate glass to be broken and divided immediately after being put in; (b) is a display A schematic diagram of the state just after the plate glass is pressed by the pressing member; (c) is a schematic diagram showing the state of the plate glass just after being broken and divided by the breaking of the dividing member; (d) is a schematic diagram showing the state just after the broken and dividing member has returned to the original predetermined position; (e) is a schematic diagram showing the state after a part of the plate glass is sucked by the suction pad.

Figure 5 is a diagram showing the inside of the suction nozzle body in the dust collection mechanism of another embodiment, where (a) is a cross-sectional view showing the state when the "dust collection mode" is displayed; (b) is the display "standby A cross-sectional view of the state in "mode".

Figure 6 is a view showing the inside of the nozzle body in the dust collection mechanism of another embodiment, where (a) is a cross-sectional view showing the state of "dust collection mode"; (b) is showing " A cross-sectional view of the state in "standby mode".

Next, the embodiment for embodying the present invention will be described using FIGS. 1 to 4.

In addition, in the following description, for the convenience of description, the vertical direction of FIG. 1, FIG. 2, and FIG. 4 is prescribed|regulated as the vertical direction of the manufacturing apparatus 1 of sheet glass.

In addition, in Fig. 1 and Fig. 4, the direction of arrow A is specified as the conveying direction of sheet glass G and described.

〔Manufacturing equipment 1〕

First, the structure of the plate glass manufacturing apparatus 1 (hereinafter, simply referred to as "manufacturing apparatus 1") in the present embodiment will be described using the first drawing.

The manufacturing device 1 is, for example, a device for manufacturing plate glass used in flat screens such as liquid crystal display devices or organic EL display devices, and is used to break and divide the plate glass G with a large external size into predetermined outer dimensions. Type size device.

Here, the plate glass G put into the manufacturing apparatus 1 is placed on a protective sheet S for preventing damage. Since the area of the protective sheet S is wider than the area of the plate glass G, the protective sheet S becomes a sheet glass The state around G is exposed.

Furthermore, the plate glass G has: a first main surface Ga (in this embodiment, the upper plane) and a second main surface Gb (in this embodiment, the lower surface) located on the opposite side of the first main surface Ga Side plane), and a scribe line L composed of grooves extending linearly is formed on the first main surface Ga.

In addition, the second main surface Gb of the plate glass G is placed on the protection sheet S so as to be in contact with the protection sheet S.

In this implementation, the plate glass G is placed in the manufacturing apparatus 1 with the first main surface Ga placed in a horizontal posture facing upward.

The manufacturing apparatus 1 is mainly composed of a breaking and dividing mechanism section 10, a pressing mechanism section 20, a dust collecting mechanism section 30, and an adsorption mechanism section 40.

The breaking and dividing mechanism 10 is provided as a breaking and dividing means, and the second main surface Gb is pushed up and pushed up by the intermediate protective sheet S from below to perform the breaking and dividing of the plate glass G.

The breaking and dividing mechanism 10 is, for example, by: from roughly a strip shape The breaking and dividing rod 11 constituted by the above-mentioned components, and the first lifting device (not shown in the figure) for raising and lowering the breaking and dividing rod 11, and so on.

The breaking and dividing rod 11 extends the flat portion toward the conveying direction of the plate glass G (the direction of arrow A in the first figure) while extending in the horizontal direction, and extends in the direction perpendicular to the conveying direction. Way to configure.

And, for example, as described later, when the sheet glass G is thrown into a predetermined position in the manufacturing apparatus 1, the breaking and dividing rod 11 is raised by the above-mentioned first lifting device.

Thereby, the inserted plate glass G is pushed up from below by the breaking and dividing rod 11.

As a result, the plate glass G is broken and divided by pressing against the second main surface Gb while receiving the breaking and dividing rod 11 along the scribe line L.

Next, the pressing mechanism section 20 will be described.

The pressing mechanism part 20 is provided as a holding means, which presses the first main surface Ga of the plate glass G from above, and together with the suction mechanism part 40 described later, is used to hold the top by the breaking and dividing rod 11 The posture of plate glass G.

The pressing mechanism 20 is composed of a linear channel brush (channel brush) 21, a second lifting device 22 that raises and lowers the channel brush 21, and the like.

The grooved brush 21 is located on the upper side relative to the breaking and dividing rod 11 and on the upstream side in the conveying direction, and extends the bristles 21a downwards while extending in the horizontal direction and in a direction perpendicular to the conveying direction The way to configure.

That is, the grooved brush 21 is arranged such that, when viewed from the conveying direction, it is sandwiched with the plate glass G placed at a predetermined position in the manufacturing apparatus 1 in parallel with the breaking and dividing rod 11 in the vertical direction. Configuration.

In addition, the channel brush 21 is lowered by the second lifting device 22 when the plate glass G is thrown into a predetermined position in the manufacturing apparatus 1 as described later, for example.

Thereby, the inserted plate glass G is pressed by the groove brush 21 from above.

As a result, the plate glass G maintains its posture by pressing the vicinity of the scribe line L on the first main surface Ga (specifically, the upstream side of the scribe line L in the conveying direction) by the groove brush 21.

Next, the dust collecting mechanism unit 30 will be described.

The dust-collecting mechanism 30 is set as a dust-collecting means, which is used when pressed by the grooved brush 21, and when broken and divided by the breaking and dividing rod 11, etc., to remove the dust from the side of the first main surface Ga The glass powder and the like generated from the plate glass G are collected as dust.

The dust collecting mechanism part 30 is provided with a suction nozzle 31 extending in one direction, and the suction nozzle 31 is supported by a slot brush 21 by a clamping bracket 32, which will be described in detail later.

Thereby, the suction nozzle 31 follows the lifting motion of the grooved brush 21 driven by the second lifting device 22.

Next, the suction mechanism unit 40 will be described.

The suction mechanism 40, except for pressing the first main surface Ga of the plate glass G from above, is held together with the above-mentioned pressing mechanism 20 by the breaking and dividing rod 11 Except the posture of the lifted plate glass G, it is used to absorb a part of the plate glass G after breaking and splitting and to transport a part of the plate glass G to a predetermined place (for example, to discharge a part of the plate glass G) Discharge conveyor belt to the outside of the manufacturing device 1, etc.).

The suction mechanism 40 is composed of a plurality of suction pads 41, 41... arranged in the horizontal direction, and a vacuum circuit (not shown) that controls the suction operation of the suction pads 41, 41..., and The third lifting device (illustration omitted) that lifts these adsorption pads 41, 41... and the moving device (illustration omitted) that moves the adsorption pads 41, 41,... to a predetermined location, etc. constitute.

These plural suction pads 41, 41, ..., which are located on the upper side with respect to the breaking and dividing rod 11, and on the downstream side in the conveying direction, when viewed from the conveying direction, are in accordance with the schedule placed in the manufacturing device 1 The plate glass G clamps at the positions are arranged in parallel with the breaking and dividing rod 11 in the vertical direction at intervals.

In addition, the plurality of suction pads 41, 41, ... constituted by such a configuration, for example, as described later, when the sheet glass G is thrown into a predetermined position in the manufacturing apparatus 1, can be moved by the third lift The device fell.

Thereby, the inserted plate glass G is pressed from above by a plurality of suction pads 41, 41, ....

As a result, the plate glass G is received by a plurality of suction pads 41, 41, ..., and is pressed against the vicinity of the scribe line L on the first main surface Ga (specifically, downstream in the conveying direction of the scribe line L) Side), while the posture is preserved hold.

In addition, these plural suction pads 41, 41, ... are configured to suck a part of the plate glass G through the vacuum circuit (not shown in the figure) while pressing the plate glass G (carrying of the scribe line L) The part on the downstream side of the direction).

Furthermore, as described later, it is configured that after the sheet glass G is broken and divided, a part of the sheet glass G (the part on the downstream side of the conveying direction of the scribe line L) is immediately removed by the above-mentioned moving device (not shown) A structure for transporting to a predetermined location (discharge conveyor belt, etc.).

[Dust Collection Mechanism Department 30]

Next, the structure of the dust collecting mechanism section 30 will be described in detail using Figs. 1 to 3.

The dust collection mechanism unit 30, as shown in Figure 2, is mainly composed of: a suction nozzle 31, an air duct 33, a header tank 34, an air guide hose 35, a dust collector 36, an air brake damper 37, and a gate The board 38 and so on.

The suction nozzle 31 constitutes a suction port for sucking glass powder and the like generated in the sheet glass G.

The suction nozzle 31 includes, for example, a rectangular box-shaped suction nozzle body 31A extending in one direction, and a suction nozzle opening 31B is connected to one side of the nozzle body 31A.

The nozzle opening 31B is configured to extend in one direction along the nozzle body 31A.

In addition, the structure of the nozzle opening 31B is not limited to this embodiment Alternatively, for example, a configuration in which a plurality of wide and narrow nozzle openings are arranged in a row along the extending direction of the nozzle body 31A may be used.

Moreover, as shown in Figure 1, the nozzle body 31A is on the upper side of the broken split rod 11 and on the downstream side relative to the conveying direction of the grooved brush 21, with the nozzle opening 31B facing downward and extending It is arranged in a horizontal direction and extends in a direction perpendicular to the conveying direction.

That is, the nozzle body 31A is arranged such that the tip of the nozzle opening 31B is positioned above the scribe line L in the first main surface Ga of the sheet glass G.

On the other hand, as shown in Figure 2, on the surface on the other side of the nozzle body 31A (the surface on the side opposite to the nozzle mouth 31B side, that is, the upper surface), the lower end portions of the interposition are respectively connected with plural There are four (four in this embodiment) air ducts 33, 33...

In other words, in the suction nozzle 31, a plurality of air ducts 33, 33... as an example of a piping member are communicated with the surface on the other side of the nozzle body 31A.

Moreover, the nozzle body 31A communicates with a header container 34 described later via these air guide pipes 33, 33...

Here, the air guide pipes 33, 33... are provided with a gate plate 38 that adjusts the opening area and can switch the flow of air flowing in the air guide pipes 33, 33..., for example, in this embodiment Among them, it is inserted inside the nozzle body 31A.

In addition, the place where the gate plate 38 can be installed is not affected by this embodiment. The limitation is that, for example, the outside of the nozzle body 31A can also be directly arranged at the end of each air guide tube 33.

The gate plate 38, for example, as shown in Fig. 3, is composed of a belt-shaped flat plate member. On the plane, a plurality of large-scale notches 38A, 38A..., and The large-sized notches 38A, 38A... and the small-sized notches 38B, 38B... formed by the reduced-diameter shapes.

More specifically, these large holes 38A, 38A... and small holes 38B, 38B... are a set of one large hole 38A and one small hole 38B, at least with the air duct 33 The number of, 33... has the same number of multiple groups (four groups in this embodiment) of through holes.

In addition, these complex groups (four groups) of large-sized holes 38A, 38A... and small-sized holes 38B, 38B... are individually arranged such that each group adjacent to each other has an air duct 33, 33... are arranged at the same interval size.

The shutter plate 38 formed of such a shape, as shown in Figure 2, is in close contact with the upper surface of the nozzle body 31A in the inside of the nozzle body 31A, and along the extension of the nozzle body 31A It is arranged in a direction and can be slidably installed in the extending direction by an actuator or the like not shown.

In addition, in the nozzle body 31A, the position of the gate plate 38 is changed by the above-mentioned actuator or the like, whereby the state of the dust collection mechanism 30 can be switched to the function of: exerting a predetermined suction force to perform glass frit The "dust collection mode" for dust collection and the "standby mode" which has a relatively weaker attractive force than the aforementioned predetermined attractive force, constitute two types of operation modes Any of the formulas.

Specifically, as shown in Figure 3(a), the dust collecting mechanism section 30 moves the gate plate 38 so that a plurality of large-sized holes 38A, 38A... are located in the air ducts 33, 33... The end position becomes the state of "dust collection mode".

On the other hand, as shown in Fig. 3(b), the dust collection mechanism 30 moves the gate plate 38 so that a plurality of small holes 38B, 38B... are located in the air ducts 33, 33... The end position becomes the "standby mode" state.

In this way, in the present embodiment, by moving the shutter plate 38 to switch the air flow rate flowing in each air guide pipe 33, the state of the dust collection mechanism 30 is configured to be able to perform a predetermined suction Select either one of two operating modes consisting of a powerful "dust collection mode" and a "standby mode" that is weaker than the aforementioned "dust collection mode".

In addition, the inner diameter of the large-sized hole 38A is preferably set to be approximately the same as the inner diameter of the air duct 33. For example, in the present embodiment, it is set to about 100 [mm].

On the other hand, the inner diameter of the small notch 38B is set to be about 30 [mm] in the present embodiment in order to effectively suppress the suction pressure of the dust collecting mechanism 30 as described later.

In this way, the inner diameter of the small notch 38B is preferably set to be about 1/3 to 1/4 of the inner diameter of the large notch 38A.

Thus, for example, when the operation mode of the dust collecting mechanism 30 is switched to the "standby mode", not only a part of the protective sheet S will not be Conversely, as will be described later, the glass powder temporarily stored in the header container 34 does not fall from the nozzle opening 31B, and the dust collecting mechanism 30 can be effectively suppressed. Attracting pressure.

However, the structure of the shutter plate 38 is not limited by the content described in this embodiment.

For example, as shown in Figure 5, as one of another embodiment, the gate plate 138 is provided with: a single type of rectangular cutouts 138A, 138A formed with the same number of air ducts 33, 33... .. can also be formed.

At this time, as shown in Figure 5(a), the dust collection mechanism 130 moves the gate plate 138 so that the plurality of holes 138A, 138A... are positioned between the air ducts 33, 33... The position of the end becomes the state of "dust collection mode".

On the other hand, as shown in Figure 5 (b), the dust collection mechanism 130 is moved by the gate plate 138 to a plurality of notches 138A, 138A... only slightly overlapped in the air duct 33, 33. The position of the end of .. becomes the state of "standby mode".

Also, for example, as shown in FIG. 6, as one of the other embodiments, the gate plate 238 may be provided with a pair of large-sized holes 238A and small-sized holes 238B. In this case, the gate plate 238, 238... are the number of air ducts 33, 33... (the same number).

Moreover, as shown in Figure 6(a), the dust collection mechanism 230 switches the positions of the gate plates 238, 238... so that the plurality of large-sized holes 238A, 238A... The positions of the ends of the tubes 33, 33... are in the state of "dust collection mode".

On the other hand, as shown in Figure 6(b), the dust collection mechanism 230 switches the positions of the gate plates 238, 238... so that a plurality of small holes 238B, 238B... are located The positions of the ends of the air ducts 33, 33... are in the "standby mode" state.

Next, the header container 34 will be described.

The header container 34 is for temporarily storing the glass powder and the like generated on the sheet glass G sucked in through the suction nozzle 31.

As shown in FIG. 2, the header container 34 is, for example, configured in a rectangular box shape extending in one direction, and is arranged directly above the nozzle 31 in parallel with the nozzle body 31A.

In addition, the upper end portions of the plurality of air guide pipes 33, 33... are surfaces respectively connected to one side of the header container 34 (in this embodiment, the lower surface).

Thereby, the header container 34 communicates with the suction nozzle 31 via these air guide pipes 33, 33...

On the other hand, the two air guide hoses 35 and 35 are respectively connected to the other side surface of the header container 34 (the surface opposite to the air guide tube 33 side, that is, the upper surface) via the lower end.

In addition, the header container 34 communicates with a dust collector 36 and an air brake damper 37 described later via these air guide hoses 35 and 35, respectively.

Next, the dust collector 36 will be described.

The dust collector 36 is a device that enables the dust collection function of the dust collection mechanism section 30 to be exhibited.

The dust collector 36 is composed of, for example, a commercially available dust collector, and communicates with the header container 34 via an air guide hose 35 which is an example of a piping member.

Moreover, the dust collector 36 is always in a suction state as long as the manufacturing device 1 (please refer to Figure 1) is in operation, and the glass powder sucked by the suction nozzle 31 flows through the air duct 33 and the header The container 34 and the air guide hose 35 are finally sucked into the dust collector 36.

In this way, the dust collecting function of the dust collecting mechanism unit 30 is exerted.

Next, the air brake damper 37 will be described.

The air lock damper 37 is used when the operation mode of the dust collecting mechanism part 30 becomes the "standby mode", and is used to open the inside of the header container 34 whose negative pressure rises sharply due to the suction force of the dust collector 36, so that the The negative pressure in the header container 34 is suppressed to be within a predetermined pressure.

The air lock damping 37 is composed of, for example, a rectangular box-shaped air lock damping body 37A, and an on-off valve 37B connected to one side of the air lock damping body 37A (in this embodiment, the lower surface), etc. Constituted.

In addition, the upper end of the air guide hose 35 is connected to the opening and closing valve 37B.

Thereby, the air lock damper 37 has an opening and closing function performed by the opening and closing valve 37B, and communicates with the header container 34 via the air guide hose 35.

In addition, the other side surface (in this embodiment, the upper surface) of the air brake damper body 37A is formed with a cylindrical opening 37A1, and a commercially available silent device ( Illustration omitted).

In the air lock damper 37 constructed in this way, when the operation mode of the dust collection mechanism 30 is in the "dust collection mode", the on-off valve 37B is in the "closed" state, and the air lock damper body 37A has an intermediate cylindrical shape. Opening The portion 37A1 is in a closed state (closed state) with respect to the outside.

Thereby, the inside of the header container 34 is increased by the suction of the dust collector 36, and the cross-sectional shape of the lower end of the plurality of air ducts 33, 33... is determined by the gate plate 38 Decision, there will be no shrinking situation.

As a result, the flow rate of the air flowing in the air guide pipes 33, 33... does not decrease, and the negative pressure in the header container 34 is maintained at a predetermined pressure.

On the other hand, when the operation mode of the dust collection mechanism 30 is in the "standby mode", the on-off valve 37B is in the "open" state, and the inside of the airlock damper body 37A is opened to the outside through the cylindrical opening 37A1 State (open state).

Thereby, the cross-sectional shape of the lower end of the plurality of air guide pipes 33, 33... is reduced by the gate plate 38, and even if the negative pressure in the header container 34 rises sharply, it can pass through the cylindrical opening. 37A1 takes in external air into the air lock damper 37, thereby suppressing the negative pressure in the header container 34 to a predetermined pressure.

[Sequence of actions]

Next, the operation sequence of the manufacturing apparatus 1 will be described using FIG. 4.

First, at the beginning, in the breaking and dividing mechanism 10, the breaking and dividing rod 11 is stopped at the lower limit of the "lower standby position", and is in a submerged state with respect to the conveyance reference Lv on which the plate glass G is conveyed.

In addition, in the pressing mechanism portion 20, the groove brush 21 is stopped at the upper limit of the "upper standby position", and the plate glass G is transported with respect to the conveyance reference Lv of the plate glass G. The state above the thickness.

In addition, in the dust collection mechanism section 30, the suction nozzle 31 is stopped at the "upper standby position" together with the groove brush 21.

At this time, the shutter plate 38 of the suction nozzle 31 is in the "standby mode" state, and the suction pressure of the dust collecting mechanism unit 30 is suppressed.

In addition, the on-off valve 37B (please refer to FIG. 2) of the air lock damper 37 is in an "open" state, and therefore the inside of the header vessel 34 is opened to the outside via the air lock damper body 37A.

Furthermore, in the suction mechanism section 40, the suction pad 41 is stopped at the upper limit of the "upper standby position", and the sheet glass G is conveyed with respect to the conveyance reference Lv, which is largely separated from the sheet glass G upward. The state above the thickness.

The plate glass G is put into the manufacturing apparatus 1 in such a state.

The inserted plate glass G is transported to a predetermined position in the manufacturing apparatus 1, as shown in Figure 4(a), between the breaking and dividing mechanism section 10, the pressing mechanism section 20 and the suction mechanism section 40, While the first main surface Ga serves as the upper surface, the undercut line L (please refer to FIG. 1) in a plan view is positioned along the position of the breaking and dividing rod 11 and stops.

When the plate glass G stops, the channel brush 21 starts to descend.

In addition, the suction pad 41 also starts to descend together with the groove brush 21.

Moreover, as shown in Figure 4(b), the grooved brush 21 is designed to bend the bristles 21a at the same time as its front end is connected to the first main surface of the plate glass G Ga (more specifically, an area located on the upstream side in the conveying direction with respect to the broken and dividing rod 11, that is, an essential part of the product) abuts.

In addition, the suction pad 41 also abuts its lower end with the first main surface Ga of the plate glass G (more specifically, the area on the downstream side in the conveying direction with respect to the broken dividing rod 11, that is, the part that will be discarded) Pick up.

Thereby, the plate glass G is held in a predetermined position in the manufacturing apparatus 1 by being pressed from above by the groove brush 21 and the suction pad 41.

In addition, the suction pad 41 immediately starts the suction operation after it comes into contact with the sheet glass G, and presses the sheet glass G while maintaining the suction on the downstream side of the sheet glass G in the conveying direction.

On the other hand, as the trough brush 21 is lowered, the suction nozzle 31 is also lowered, but at this time, the shutter plate 38 of the suction nozzle 31 is still maintained in the "standby mode" state, and becomes one of the dust suppression mechanism 30 The state of attracting pressure.

Then, when the groove brush 21 comes into contact with the plate glass G and stops, the shutter plate 38 of the suction nozzle 31 is immediately switched to the state of the "dust collection mode", and the dust collection mechanism unit 30 is in a state where a predetermined suction pressure is exerted.

At the same time, the on-off valve 37B of the air lock damper 37 is switched to the "closed" state, and the inside of the header container 34 is closed by the air lock damper body 37A with respect to the outside.

When the posture of the plate glass G is maintained by the groove brush 21 and the suction pad 41, the breaking and dividing rod 11 starts to rise.

In addition, when the dividing rod 11 is broken, the plate glass G is pressed by pushing up the second main surface Gb from below while following the scribe line L (please refer to FIG. 1).

As a result, as shown in FIG. 4(c), the sheet glass G is bent into a convex shape while being broken and divided with the scribe line L as the center toward the first main surface Ga side where the scribe line L is formed.

In addition, the glass frit and the like generated during the breaking and dividing of the sheet glass G are sucked by the dust collecting mechanism section 30 and sufficiently removed.

Also, as described above, a protective sheet S is provided on the lower surface of the plate glass G. Although a part of the protective sheet is exposed near the suction nozzle 31 of the dust collecting mechanism 30, it is due to the groove brush 21 and the suction pad 41 is pressed from above while sandwiching the plate glass G, so a part of the above-mentioned protective sheet S will not be sucked into the suction nozzle 31 of the dust collecting mechanism section 30.

When the breaking and dividing of the sheet glass G ends, the breaking and dividing rod 11 stops rising, and then starts to descend.

Then, as shown in FIG. 4(d), the dividing rod 11 is broken, and when it reaches the "downward standby position" again, the lowering is stopped.

When the breaking and dividing rod 11 stops at the "lower standby position", the shutter plate 38 of the suction nozzle 31 is immediately switched to the "standby mode" state, and the suction pressure of the dust collecting mechanism 30 is again suppressed.

At the same time, the on-off valve 37B of the air lock damper 37 is also switched to the "open" state, and the inside of the header vessel 34 is opened to the outside through the air lock damper body 37A.

After that, the grooved brush 21 starts to rise.

In addition, along with the ascent of the channel brush 21, the suction pad 41 also starts to ascend while keeping the unnecessary part of the plate glass G adsorbed.

Here, as the state of the protective sheet S, although it is subject to The groove brush 21 and the suction pad 41 are completely released when they are pressed. However, as mentioned above, the shutter plate 38 of the suction nozzle 31 has been switched to the "standby mode" state, due to the suction pressure of the dust collecting mechanism 30 Since it is suppressed, the suction nozzle 31 of the dust collecting mechanism part 30 does not suck up a part of the protective sheet S while winding it up.

However, even when the shutter plate 38 of the suction nozzle 31 is in the "standby mode" state, the suction pressure of the dust collection mechanism 30 is not completely stopped, because it is effective in a suppressed state, for example, The glass frit etc. temporarily stored in the header container 34 that has been sucked will not fall from the nozzle opening 31B of the nozzle 31.

As shown in Fig. 4(e), the groove-shaped brush 21 stops rising when it reaches the "upper standby position" again.

On the other hand, when the suction pad 41 reaches the "upper standby position" again, it maintains the state where the unnecessary part of the plate glass G is adsorbed and moves to a predetermined place (discharge conveyor belt, etc.), and moves to the place where the plate glass G is transferred After the part is not needed, move to the "upper standby position" again and stop.

Then, the plate glass G after being broken and divided is transported from the manufacturing apparatus 1.

Thereby, the operation sequence of the manufacturing apparatus 1 is temporarily finished, and it waits until another new sheet glass G is put into the manufacturing apparatus 1.

〔Industrial availability〕

The manufacturing method and manufacturing device of plate glass of the present invention are It can be used as a technique for sucking and removing glass frit and the like generated when the plate glass is broken and divided.

30‧‧‧Dust collection mechanism department (dust collection means)

31A‧‧‧Nozzle body

33‧‧‧Air duct (piping component)

38‧‧‧Gate Plate

38A‧‧‧Large hole

38B‧‧‧Small hole

Claims (10)

A method for manufacturing plate glass is to have a scribe line on the first main surface, and the second main surface opposite to the first main surface is the plate glass placed on the protective sheet in a manner of contact with the protective sheet A method for manufacturing a plate glass that is fractured and divided along the scribe line is characterized in that: the second main surface is pressed along the scribe line while sandwiching the protective sheet by a breaking and dividing means, thereby The breaking and dividing of the plate glass is performed, and the glass powder generated during the breaking and dividing of the plate glass is collected from the first main surface side by a dust collecting means. The dust collecting means is capable of collecting dust Choose between two types of operation modes consisting of a mode and a standby mode. The dust collection mode has a predetermined attractive force for collecting the dust of the glass powder; the standby mode has a higher than the predetermined attractive force. Weak attraction; when the dust collection of the glass powder is not performed, the operation mode is selected as the standby mode. For example, the method for manufacturing sheet glass in the first patent application, wherein the dust collecting means includes: a suction nozzle that becomes the suction port of the glass powder, and a piping member communicating with the suction nozzle, and The gate plate for adjusting the opening area of the piping member. For example, the method for manufacturing plate glass in the scope of the patent application, wherein the gate plate is formed with a large notch and a small notch formed by reducing the diameter of the large notch. The gate plate The dust collecting means is set to the dust collection mode by moving the large-sized notch toward the end of the piping member. On the other hand, the shutter plate has the small notch toward the end of the piping member. Move, and set the dust collecting means to the standby mode. For example, the method for manufacturing plate glass according to the third item of the scope of patent application, wherein the inner diameter of the small notch is 1/4 or more and 1/3 or less with respect to the inner diameter of the large notch. The method for manufacturing plate glass according to any one of the 2nd to 4th claims, wherein the dust collecting means has: a header container connected to the piping member, and a header container connected to the header container In the dust collector, an air lock damper having an opening and closing function is connected to the header container. In the dust collection mode, the air lock damper is in a closed state, and in the standby mode, the air lock damper is in an open state. A manufacturing device for plate glass is a plate glass that has a scribe line on a first main surface, and a second main surface opposite to the first main surface is placed on the protective sheet so as to be in contact with the protective sheet , A manufacturing apparatus for sheet glass that is fractured and divided along the scribe line is characterized by comprising: a breaking and dividing means and a dust collecting means. The breaking and dividing means is provided along the scribe line while interposing the protective sheet. The second main surface is pressed to thereby perform the fracture and division of the plate glass; the dust collecting means collects dust from the glass powder generated when the plate glass is broken and divided from the first main surface side; The dust collection means can select two types of operation modes consisting of a dust collection mode and a standby mode. The dust collection mode has a predetermined attractive force for collecting dust from the glass powder; the standby mode , Which has an attractive force that is relatively weaker than the predetermined attractive force; when the dust collection of the glass powder is not performed, the operation mode is selected as the standby mode. For example, the apparatus for manufacturing sheet glass in the scope of the patent application, wherein the dust collecting means is provided with a suction nozzle that becomes the suction port of the glass powder, a piping member connected to the suction nozzle, and an adjustment of the piping member The gate plate of the opening area. For example, the device for manufacturing plate glass according to the scope of the patent application, wherein the gate plate is formed with a large notch and a small notch formed by reducing the diameter of the large notch. The gate plate The dust collecting means is set to the dust collection mode by moving the large-sized notch toward the end of the piping member. In addition, the gate plate has the small notch toward the end of the piping member. The dust collecting means is set to the standby mode. For example, the sheet glass manufacturing device of the eighth patent application, wherein the inner diameter of the small-sized hole is 1/4 or more and 1/3 or less than the inner diameter of the large-sized hole. The apparatus for manufacturing sheet glass according to any one of claims 7 to 9 in the scope of the patent application, wherein the dust collecting means includes: a header container connected to the piping member and a header container connected to the header container In the dust collector, an air lock damper having an opening and closing function is connected to the header container. In the dust collection mode, the air lock damper is in a closed state, and in the standby mode, the air lock damper is in an open state.

Images