TW201803712A - Production method and production device of plate glass - Google Patents

Abstract

To provide a production method and a production device of a plate glass, which breaks a material glass (plate glass) along a scribe line, the material glass having a scribe line on a first face, and being placed on a protection sheet so that a second main face opposite to the first face contacts the protection sheet, in which glass powder etc. generated when breaking the plate glass, is stably suctioned and removed, without sucking and rolling in a part of the protection sheet. The plate glass G is broken by pressing the second main face Gb along the scribe line L via the protection sheet S by a folding and breaking mechanism 10, while the glass powder generated when the plate glass G is broken is dust collected from the first main face side by a dust collection mechanism 30, and in the dust collection mechanism 30, two kinds of driving odes of a dust collecting ode having a specified sucking force for collecting the glass powder, and a stand-by mode having a relatively weaker sucking force than the specified sucking force.

Description

Method and device for manufacturing sheet glass

The present invention relates to a technique for manufacturing a sheet glass and a manufacturing apparatus, and more specifically, to a technique for attracting and removing glass frit and the like generated when the sheet glass is broken and divided.

In recent years, for example, a sheet glass used in a flat panel display of a liquid crystal display device or an organic EL (organic light-emitting diode) display device has been made by reducing the size of the sheet glass (hereinafter, Properly described as "original glass") It is produced by breaking and dividing into predetermined external dimensions.

Here, as a method of breaking and dividing the raw glass, a dividing line (cut line) has been formed in advance on one of the main surfaces of the raw glass, and then the divided original is broken by pressing along the cut line. Wood.

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

Here, a technique for solving such a problem is disclosed by, for example, "Patent Document 1."

Specifically, in the above-mentioned "Patent Document 1", there is disclosed a technology related to a glass frit removing device. The glass frit removing device for removing glass frit generated at the time of cutting is provided along The cutting line (cut line) is a substrate cutting device for cutting a glass substrate (original glass), and is characterized by including a suction portion and a pair of blowing portions. The suction portion is connected to the above-mentioned scribe line. It is connected to the vacuum suction means and used to suck the glass frit. The pair of blow-out parts are arranged on both outer sides of the suction part with the above-mentioned scribe line as the center and become line symmetry, and are connected to the gas supply. Means simultaneously blows the glass powder toward the suction portion by forcibly supplying gas to the raw glass.

[Previous Technical Literature] [Patent Literature]

Patent Document 1: Japanese Patent Application Laid-Open No. 2008-94690

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

However, for example, with respect to raw glass and the like that have been previously placed on a protective sheet for preventing damage, the area of the protective sheet is generally smaller than The original glass is also wide, and the protective sheet is exposed from the surroundings of the original glass.

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

As a result, a part of the protective sheet is caught in the above-mentioned removing device, which may cause an accident to the entire manufacturing device, and it may be difficult to achieve an improvement in the quality of the manufactured sheet glass as a final product.

The present invention has been developed in view of the above-mentioned problems in the present situation, and provides a method and device for manufacturing sheet glass. The method has a scribe line on a first main surface and is opposite to the first main surface. The second main surface of the side is a method of manufacturing a sheet glass that is made of raw glass (plate glass) placed on the protection sheet in contact with the protection sheet, and is divided along the above-mentioned scribe line. A part of it is sucked in and drawn in, and it is possible to stably suck and remove glass frit and the like generated when the divided sheet glass is broken, as a problem.

The problem to be solved by the present invention is as described above, and the means for solving the problem will be described next.

That is, in the method for manufacturing a sheet glass of the present invention, a first main surface has a scribe line, and a second main surface opposite to the first main surface is placed on the protection in contact with the protection sheet. A method for manufacturing sheet glass on a sheet, the sheet glass being broken and divided along the scribe line, It is characterized in that by breaking and dividing means, while pressing the second main surface along the scribe line while interposing the protective sheet, the fracture and division of the sheet glass is performed, and by means of dust collection, The first main surface side collects dust from the glass powder generated when the sheet glass is broken and divided. The dust collection means is capable of selecting two types of operation modes including a dust collection mode and a standby mode. The dust collection mode has a predetermined attractive force for performing dust collection of the glass powder, and the standby mode has a relatively weaker attractive force than the predetermined attractive force.

According to the method for manufacturing sheet glass formed by such a structure, the operation mode of the dust collecting means is used as the dust collection mode only when the sheet glass is broken and divided, and the sheet glass can be stably divided and broken. In addition to attracting and removing glass powder, etc., in addition to the above-mentioned breaking and dividing operation, by constantly setting the operation mode of the dust collecting means to the standby mode, a part of the protective sheet can be prevented from being sucked in and drawn in. In addition, glass powder and the like remaining in the suction nozzle can be prevented from adhering to the plate glass due to dropping.

As a result, an accident is not induced in the entire manufacturing apparatus of sheet glass, and the quality of the sheet glass produced can be improved as a final product.

Further, in the method for manufacturing a sheet glass of the present invention, the dust collecting means includes a suction nozzle that becomes an inlet of the glass frit, a piping member connected to the suction nozzle, and a method for adjusting the piping member. A gate plate with an opening area is preferred.

With such a structure, the dust collector can be selected It is not necessary to separately install a driving mode switching device such as a large-scale operation mode, and it can be realized by a simple mechanism formed by a gate plate, so it is economical.

Further, in the method for manufacturing a sheet glass of the present invention, the gate plate is formed with a large-sized hole and a small-sized hole formed by reducing the diameter of the large-sized hole, and the gate plate is formed by The large hole is moved toward the end of the piping member, and the dust collecting means is set to the dust collection mode. On the other hand, the gate plate moves the small hole to the end of the piping member, and It is preferable that the dust collection means is set to the standby mode.

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

In the method for producing a sheet glass of the present invention, the inner diameter of the small-sized hole is preferably 1/4 or more and 1/3 or less with respect to the inner diameter of the large-sized hole.

With this configuration, when the operation mode of the dust collecting means is switched to the standby mode, not only does a part of the protective sheet not be sucked in and drawn in, but also, it can be temporarily stored in the header container. To the extent that glass powder and the like do not fall from the mouth of the nozzle, the suction pressure of the dust collecting means is effectively suppressed.

Moreover, in the manufacturing method of the plate glass of this invention, the said The dust collecting means includes: a header container connected to the piping member and a dust collector connected to the header container; an airlock damper having an opening and closing function is connected to the header container; in the dust collection mode, The airlock damper is turned off, and in the standby mode, the airlock damper is turned on.

By having such a structure, for example, when the operation mode of the dust collecting means is switched to the standby mode, the inside of the header container in which the negative pressure is sharply increased due to the attraction of the dust collector by the air damper is used. Since it is opened, the negative pressure in the header container can be suppressed to a predetermined pressure or less.

Moreover, the manufacturing apparatus of the plate glass of this invention has a scribe line on a 1st main surface, and the 2nd main surface on the opposite side to this 1st main surface is mounted on the said protection sheet so that it may contact a protection sheet. The above plate glass is a device for manufacturing a plate glass which is broken and divided along the above-mentioned scoring line, and is characterized by including a breaking and dividing means and a dust collecting means. The breaking and dividing means is arranged along the protective sheet while sandwiching the protective sheet. The scribe line presses the second main surface to perform the division and division of the sheet glass. The dust collecting means is to divide the glass powder generated when the sheet glass is fractured and divided from the first main surface side. Dust collection; the above-mentioned dust collection means is capable of selecting two types of operation modes composed of a dust collection mode and a standby mode, and the dust collection mode has a predetermined attractive force for performing the dust collection of the glass powder ; The standby mode has an attractive force that is relatively weaker than the predetermined attractive force described above.

Manufacture of plate glass formed in accordance with 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, the glass powder and the like generated when the divided glass is broken can be attracted and removed in a stable manner. In addition, in addition to the above-mentioned breaking and dividing operation, by constantly setting the operation mode of the dust collecting means to the standby mode, a part of the protective sheet can be prevented from being sucked in and drawn in, and the glass powder remaining in the nozzle can be prevented. And so on, it adheres to the plate glass due to dropping.

As a result, an accident is not induced in the entire manufacturing apparatus of sheet glass, and the quality of the sheet glass produced can be improved as a final product.

Moreover, in the manufacturing apparatus of the plate glass of this invention, the said dust collection means is equipped with the suction nozzle which becomes the suction opening of the said glass powder, the piping member connected to this suction nozzle, and the adjustment of the said piping member. A gate plate with an opening area is preferred.

By having such a structure, since the operation mode of the dust collection means can be selected, it is not necessary to separately install a large-scale operation mode switching device, for example, and it can be realized by a simple mechanism formed by the shutter plate, which is economical.

Moreover, in the manufacturing apparatus of the plate glass of this invention, the said gate plate is formed with the large-scale hole, and the small-scale hole formed by the shape which reduced the diameter of this large-scale hole. The large hole is moved toward the end of the piping member, and the dust collecting means is set to the dust collection mode. On the other hand, the gate plate moves the small hole to the end of the piping member, and Make the above dust collecting means It is better to set to the above standby mode.

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

Moreover, in the manufacturing apparatus of the plate glass of this invention, it is preferable that the inside diameter of the said small-sized hole is 1/4 or more with respect to the inside diameter of the said large-sized hole.

With this configuration, when the operation mode of the dust collecting means is switched to the standby mode, not only does a part of the protective sheet not be sucked in and drawn in, but also, it can be temporarily stored in the header container. To the extent that glass powder and the like do not fall from the mouth of the nozzle, the suction pressure of the dust collecting means is effectively suppressed.

Moreover, in the manufacturing apparatus of the plate glass of this invention, the said dust collection means is equipped with the header container connected to the said piping member, and the dust collector connected to this header container, and the said header container is provided with opening and closing successively. Functional airlock damping; in the dust collection mode, the airlock damping is turned off, and in the standby mode, the airlock damping is turned on.

By having such a structure, for example, when the operation mode of the dust collecting means is switched to the standby mode, the inside of the header container in which the negative pressure is sharply increased due to the attraction of the dust collector by the air damper is used. It is opened so that the negative pressure in the header container can be suppressed to a predetermined level Within pressure.

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

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

10‧‧‧Break and split mechanism department (break and split means)

21‧‧‧Slot Brush

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

31‧‧‧Nozzle

31A‧‧‧Nozzle body

31B‧‧‧Nozzle mouth

33‧‧‧Air duct (piping member)

34‧‧‧ header container

35‧‧‧Air Hose

36‧‧‧ Dust Collector

37‧‧‧Airlock Damping

38‧‧‧Gate

38A‧‧‧large hole

38B‧‧‧Small hole

G‧‧‧ Plate glass

Ga‧‧‧ First main face

Gb‧‧‧ Second main face

L‧‧‧cut line

S‧‧‧ protection sheet

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

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

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

Fig. 4 is a diagram showing the state of the manufacturing device in a time-sequential manner during the fracture and division operation, in which (a) is a schematic diagram showing the state of the sheet glass to be fractured and divided immediately after being put in; (C) is a schematic diagram showing a state immediately after the sheet glass is broken and divided by the breaking and dividing member; (d) is a schematic diagram showing a state immediately after the broken and divided member returns to the original predetermined position; (e) is a schematic diagram of a state in which a part of the glass of the display panel is sucked up by the adsorption pad.

Fig. 5 is a diagram showing the inside of the nozzle body in the dust collecting mechanism section of another embodiment, in which (a) is a sectional view showing a state when "dust collection mode" is displayed; (b) is a view showing "standby A sectional view of the state at the time of "mode".

Fig. 6 is a view showing the inside of the nozzle body in the dust collecting mechanism section of another embodiment, in which (a) is a sectional view showing a state when "dust collection mode" is displayed; (b) is a view showing " A sectional view of the state in the "standby mode".

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

In the following description, for convenience of description, the up-down direction of FIGS. 1, 2, and 4 is defined as the up-down direction of the sheet glass manufacturing apparatus 1.

In FIGS. 1 and 4, the direction of the arrow A is defined as the conveyance direction of the sheet glass G and described.

[Manufacturing Device 1]

First, the structure of the sheet glass manufacturing apparatus 1 (henceforth "the manufacturing apparatus 1") in this embodiment is demonstrated using FIG. 1. FIG.

The manufacturing device 1 is, for example, a device for manufacturing a sheet glass used in a flat panel display such as a liquid crystal display device or an organic EL display device, and is used to break and divide a sheet glass G having a large outer size into a predetermined outer shape. Size device.

Here, the sheet 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 that of the sheet glass G, the protective sheet S becomes a slave sheet glass. G's surroundings are exposed.

The sheet glass G has a first main surface Ga (in this embodiment, an upper plane) and a second main surface Gb (in this embodiment, a lower surface Side plane), and a scribe line L formed by a linearly extending groove portion is formed on the first main surface Ga.

The second main surface Gb of the sheet glass G is placed on the protective sheet S so as to be in contact with the protective sheet S.

In this manner, the sheet glass G is placed in the manufacturing apparatus 1 so that the first main surface Ga is placed in a horizontal attitude toward the upper side.

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

The breaking and dividing mechanism section 10 is provided as a breaking and dividing means, and is used for pressing and breaking the second main surface Gb at the same time from the lower intervening protective sheet S for breaking and dividing the glass plate G.

The breaking and dividing mechanism unit 10 is formed, for example, by a substantially strip-shaped plate. It is constituted by a breaking and dividing rod 11 composed of members, a first lifting device (not shown) for raising and lowering the breaking and dividing rod 11, and the like.

The breaking splitter rod 11 extends the flat portion toward the conveyance direction of the sheet glass G (the direction of arrow A in the first figure), and extends in the horizontal direction, and extends in a direction perpendicular to the conveyance direction. Way to configure.

In addition, for example, as described later, when the sheet glass G is put into a predetermined position in the manufacturing apparatus 1, the breaking and dividing lever 11 is raised by the first lifting device.

As a result, the sheet glass G that has been inserted is pushed up by the breaking and dividing rod 11 from below.

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

Next, the pressing mechanism unit 20 will be described.

The pressing mechanism portion 20 is provided as a holding means, which presses the first main surface Ga of the plate glass G from above, and is used to hold the upper part of the upper part of the break-off dividing rod 11 together with the adsorption mechanism portion 40 described later. Plate glass G pose.

The pressing mechanism portion 20 is composed of a linear channel brush 21 and a second lifting device 22 for lifting and lowering the channel brush 21.

The grooved brush 21 is located on the upper side with respect to the breaking and dividing rod 11 and on the upstream side in the conveying direction, and the bristles 21a are directed downward, and extend in the horizontal direction, and extend in a direction orthogonal to the conveying direction. Way to configure.

That is, the grooved brush 21 is arranged so as to be parallel to the breaking and dividing rod 11 in the up-down direction with a gap between the plate glass G put into a predetermined position in the manufacturing apparatus 1 when viewed from the conveying direction. Configuration.

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

As a result, the plate glass G is pressed by the grooved brush 21 from above.

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

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

The dust collection mechanism unit 30 is provided as a dust collection means, and is used to remove the dust from the first main surface Ga side when it is pressed by the grooved brush 21 and when it is fractured and divided by the breaking and dividing rod 11. The glass frit and the like generated by the plate glass G are collected by dust.

The dust collection mechanism unit 30 is provided with a suction nozzle 31 extending in one direction, and the suction nozzle 31 is supported by the clip holder 32 by the grooved brush 21, which will be described in detail later.

Thereby, the suction nozzle 31 becomes the lifting operation | movement which follows the groove brush 21 driven by the 2nd lifting device 22.

Next, the adsorption mechanism unit 40 will be described.

The suction mechanism portion 40 is configured to press the first main surface Ga of the plate glass G from above, and to hold the split lever 11 together with the pressing mechanism portion 20 described above. In addition to the posture of the lifted sheet glass G, it is used to adsorb a part of the broken sheet glass G and carry a part of the sheet glass G to a predetermined place (for example, to discharge a part of the sheet glass G) To the discharge conveyor, etc. outside the machine of the manufacturing apparatus 1).

The suction mechanism unit 40 is composed of a plurality of suction pads 41, 41, ... arranged in a horizontal direction, and a vacuum circuit (not shown) for controlling the suction operation of the suction pads 41, 41, ..., and A third lifting device (not shown) for lifting and lowering these adsorption pads 41, 41, ... and a moving device (not shown) for moving these adsorption pads 41, 41, ... to a predetermined place Make up.

The plurality of suction pads 41, 41,... 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, they are intended to be put into the manufacturing apparatus 1. The plate glass G at the position is arranged in parallel with the breaking and dividing rod 11 in the vertical direction with an interval therebetween.

Furthermore, the plurality of suction pads 41, 41, ... constituted by such a structure, for example, as described later, when the sheet glass G is put into a predetermined position in the manufacturing apparatus 1, the third lifting can be performed by the third lift. Device while descending.

As a result, the input glass G is pressed by the plurality of suction pads 41, 41,... From above.

As a result, the sheet glass G receives a plurality of suction pads 41, 41,..., And is pressed near the scribe line L on the first main surface Ga (specifically, downstream of the scribe line L in the conveying direction). Side) while the posture is guaranteed hold.

The plurality of adsorption pads 41, 41,... Are configured to adsorb a part of the plate glass G (transportation of the scribe line L) through the vacuum circuit (not shown) while pressing the plate glass G. Direction downstream part).

In addition, as described later, after the sheet glass G is broken and divided, a part of the sheet glass G (the part on the downstream side in the conveying direction of the scribe line L) is immediately moved by the moving device (not shown). It is configured to be transported to a predetermined place (e.g., a conveyor belt for discharge).

[Dust collection mechanism section 30]

Next, the configuration of the dust collection mechanism section 30 will be described in detail using FIGS. 1 to 3.

As shown in FIG. 2, the dust collection mechanism section 30 mainly includes: a suction nozzle 31, an air guide pipe 33, a header tank 34, an air guide hose 35, a dust collector 36, an air damper 37, and a gate. Plate 38 and the like.

The suction nozzle 31 is a suction port configured to suck glass powder and the like generated in the plate glass G.

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

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

The configuration 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 line along the extension direction of the nozzle body 31A may be adopted.

Further, as shown in FIG. 1, the nozzle body 31A is positioned above the break-off split lever 11 and downstream of the slot brush 21 in the conveying direction, and the nozzle mouth 31B is directed downward and extended at the same time. The horizontal direction is arranged so as to extend in a direction perpendicular to the conveyance direction.

That is, the nozzle body 31A is arranged so 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 FIG. 2, on the other side of the nozzle body 31A (the surface on the side opposite to the side of the nozzle mouth 31B, that is, the upper surface), plural numbers are successively connected to the lower end portion of the sandwich. (Four in the present embodiment) air ducts 33, 33 ....

In other words, the suction nozzle 31 communicates with a plurality of air ducts 33, 33,... As an example of a piping member on the other surface of the nozzle body 31A.

The nozzle body 31A communicates with a header container 34 described later via the air ducts 33, 33,...

Here, the air guide pipes 33, 33, ... are provided with a shutter plate 38 that adjusts the opening area to switch the air flow rate flowing in each of the air guide pipes 33, 33, ..., for example, in this embodiment. The middle is inserted inside the nozzle body 31A.

It should be noted that the place where the shutter plate 38 can be installed is not limited to this embodiment. It is limited, for example, to the outside of the nozzle body 31A, and it can also be provided in the edge part of each air duct 33 directly.

The gate plate 38 is, for example, as shown in FIG. 3, formed of a strip-shaped flat plate member. On this plane, a plurality of large-scale holes 38A, 38A, ... are formed in a row and interact with each other. The small holes 38B, 38B, ... formed by the reduced diameter shape of the large holes 38A, 38A, ....

More specifically, these large-scale holes 38A, 38A ... and small-scale holes 38B, 38B ... use a large-scale hole 38A and a small-scale hole 38B as a group, at least with the air duct 33 The number of, 33... Has an equal number of through holes (four groups in this embodiment).

Also, the large holes 38A, 38A, ... and the small holes 38B, 38B, ... of these complex arrays (four groups) are respectively arranged so that each group adjacent to each other has an air duct. 33, 33 ... are arranged at the same interval size.

As shown in FIG. 2, the gate plate 38 configured in this shape is closely attached to the upper surface of the nozzle body 31A in the interior of the nozzle body 31A and extends along the nozzle body 31A. It is arranged in a direction, and is slidably provided in the extending direction by an actuator or the like (not shown).

In addition, the position of the shutter plate 38 is changed in the nozzle body 31A by the above-mentioned actuator or the like, whereby the state of the dust collection mechanism unit 30 can be switched to: use a predetermined attractive force to perform glass powder The "dust collection mode" for dust collection and the "standby mode" which has a relatively weak attraction compared to the predetermined attraction, constitute two types of operation modes Any one of the formulas.

Specifically, as shown in FIG. 3 (a), the dust collection mechanism unit 30 moves the shutter plate 38 so that a plurality of large-scale holes 38A, 38A ... are located in the air ducts 33, 33 ... End position, and it is in the "dust collection mode".

On the other hand, as shown in FIG. 3 (b), the dust collection mechanism unit 30 moves the shutter plate 38 so that a plurality of small holes 38B, 38B ... are located in the air ducts 33, 33 ... End position, it is in the "standby mode".

As described above, in the present embodiment, the state of the dust collection mechanism unit 30 is configured so that the state of the dust collection mechanism unit 30 can be adjusted by moving the shutter plate 38 to switch the air flow rate flowing in each of the air ducts 33 so that the predetermined suction can be performed Either one of two types of operation modes consisting of a "dust collection mode" with a strong force and a "standby mode" having a weaker attraction than the "dust collection mode" described above is selected.

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 cutout hole 38B is set to about 30 [mm] in this embodiment in order to effectively suppress the suction pressure of the dust collection mechanism unit 30 as described later.

As described above, the inner diameter of the small-sized hole 38B is preferably set to approximately 1/3 to 1/4 of the inner diameter of the large-sized hole 38A.

With this, for example, when the operation mode of the dust collection mechanism unit 30 is switched to the "standby mode", not only a part of the protective sheet S is not Inhaled and drawn in. Conversely, as will be described later, it is possible to effectively suppress the dust collection mechanism unit 30 to such an extent that glass powder or the like temporarily stored in the header container 34 cannot fall from the nozzle opening 31B. Attractive pressure.

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

For example, as shown in FIG. 5, as one of the other embodiments, the shutter plate 138 is provided with: a single kind of rectangular shaped holes 138A, 138A formed with the same number of air ducts 33, 33 ... .. to make up.

At this time, as shown in FIG. 5 (a), the dust collection mechanism unit 130 moves the shutter plate 138 so that the plurality of missing holes 138A, 138A ... are positioned in the air ducts 33, 33 ... The position of the end part is in a state of "dust collection mode".

On the other hand, as shown in FIG. 5 (b), the dust collecting mechanism 130 is moved to the plurality of missing holes 138A, 138A, ... by only overlapping the shutter plates 138, 33. The position of the end of the .. is in the "standby mode".

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

Moreover, as shown in FIG. 6 (a), the dust collection mechanism unit 230 switches the positions of the shutter plates 238, 238, ..., respectively, so that a plurality of large holes 238A, 238A, ... are positioned in the wind guide. The positions of the ends of the tubes 33, 33 ... are in the "dust collection mode".

On the other hand, as shown in FIG. 6 (b), the dust collection mechanism unit 230 switches the positions of the shutter 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 a "standby mode".

Next, the header container 34 will be described.

The header container 34 is used to temporarily store glass frit and the like generated on the sheet glass G which is sucked in through the suction nozzle 31.

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

In addition, the plurality of air ducts 33, 33,... Are at its upper end portions a surface (in the present embodiment, a lower surface) respectively connected to one side of the header container 34.

Thereby, the header container 34 is in communication with the suction nozzle 31 via the air ducts 33, 33,....

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

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

Next, the dust collector 36 will be described.

The dust collector 36 is a device that performs a dust collection function of the dust collection mechanism unit 30.

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

Furthermore, as long as the dust collector 36 is in an operating state such as the manufacturing apparatus 1 (see FIG. 1), the dust collector 36 is always in a suction state, and the glass powder sucked by the suction nozzle 31 flows through the air duct 33 and the header. The container 35 and the air guide hose 35 are finally attracted to the dust collector 36.

In this manner, the dust collection function of the dust collection mechanism unit 30 is exerted.

Next, the airlock damper 37 will be described.

The airlock damper 37 is used to open the inside of the header container 34 when the operation mode of the dust collection mechanism unit 30 is set to the "standby mode", and the negative pressure rises sharply due to the attraction of the dust collector 36. The negative pressure in the header container 34 is suppressed to within a predetermined pressure.

The airlock damper 37 is, for example, a rectangular box-shaped airlock damper body 37A, and an on-off valve 37B connected to one side surface (in this embodiment, the lower surface) of the airlock damper body 37A, etc. Made up.

The on-off valve 37B is an upper end portion to which the air guide hose 35 is connected.

Thereby, the air damper 37 is provided with the opening-closing function by the on-off valve 37B, and communicates with the header container 34 via the air guide hose 35.

Furthermore, a cylindrical opening 37A1 is formed on the other surface (the upper surface in this embodiment) of the airlock damper body 37A, and a commercially available mute ( (Illustration omitted).

In the airlock damper 37 constituted in this way, when the operation mode of the dust collection mechanism unit 30 is in the "dust collection mode", the on-off valve 37B is in the "closed" state, and the airlock damper body 37A is in the shape of an intermediate cylinder. Opening The part 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 force of the dust collector 36, and the cross-sectional shape of the lower end of the plurality of air ducts 33, 33 ... is formed by the gate plate 38 It was decided that there would be no reduction.

As a result, the flow rate of the air flowing through the air ducts 33, 33, ... is not reduced, 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 unit 30 is in the "standby mode", the on-off valve 37B is in the "open" state, and the air damper body 37A has an intermediate cylindrical opening 37A1 and is open to the outside. Status (on status).

As a result, the cross-sectional shapes of the lower ends of the plurality of air ducts 33, 33 ... are reduced by the shutter plate 38, and even if the negative pressure in the header container 34 rises sharply, it can pass through the cylindrical opening. 37A1 draws in external air into the airlock damper 37, whereby the negative pressure in the header container 34 can be suppressed to a predetermined pressure.

〔Action order〕

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

First, at the breaking and dividing mechanism unit 10, the breaking and dividing lever 11 is stopped at the lower limit "lower standby position", and is in a state of being immersed relative to the conveyance reference Lv to which the sheet glass G is conveyed.

Further, in the pressing mechanism section 20, the grooved brush 21 is stopped at the upper limit "upper standby position" and is transported with respect to the sheet glass G The conveyance reference Lv is in a state where it is separated from the plate glass G by a large amount and upward.

In the dust collection mechanism unit 30, the suction nozzle 31 is stopped at the "upper standby position" together with the grooved brush 21.

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

In addition, the on-off valve 37B (see FIG. 2) of the air damper 37 is in an “open” state, so that the inside of the header container 34 is opened to the outside via the air damper body 37A.

In addition, in the adsorption mechanism unit 40, the adsorption pad 41 stops at the upper limit "upper standby position", and is relatively larger than the transportation reference Lv where the plate glass G is conveyed away from the plate glass G. Thickness or more.

The sheet glass G is put into the manufacturing apparatus 1 manufactured in this state.

The sheet glass G that has been put in is transported to a predetermined position in the manufacturing apparatus 1, and as shown in FIG. 4 (a), between the breaking and dividing mechanism section 10, the pressing mechanism section 20, and the adsorption mechanism section 40, While the first main surface Ga is an upper surface, the scribe line L (see FIG. 1) is stopped in a state of being along the position of the break-off dividing rod 11 in a plan view.

When the sheet glass G stops, the grooved brush 21 starts to descend.

Also, the suction pad 41 starts to descend together with the grooved brush 21.

Further, as shown in FIG. 4 (b), the grooved brush 21 is configured to bend the bristles 21a while bending the bristles 21a to the first main surface of the plate glass G Ga (more specifically, it is an area located on the upstream side in the conveying direction with respect to the breaking and dividing rod 11, that is, a part necessary for the product) abuts.

In addition, the suction pad 41 also abuts against the lower end portion of the suction pad 41 and the first main surface Ga of the sheet glass G (more specifically, the area on the downstream side with respect to the breaking and dividing rod 11 in the conveying direction, that is, the unnecessary part is discarded) Pick up.

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

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

On the other hand, although the suction nozzle 31 is also lowered as the grooved brush 21 is lowered, at this time, the shutter plate 38 of the suction nozzle 31 is still maintained in the "standby mode" and becomes the dust suppression mechanism unit 30. Attracting stress.

When the grooved 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 "dust collection mode" state, and the dust collection mechanism unit 30 is brought into a state in which a predetermined suction pressure is exerted.

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

When the posture of the sheet glass G is held by the grooved brush 21 and the adsorption pad 41, the break-off split rod 11 starts to rise.

In addition, the breaking of the split lever 11 is to press the plate glass G while pushing the second main surface Gb from below while following the scribe line L (see FIG. 1).

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

In addition, glass frit and the like generated when the sheet glass G is broken and divided are sucked up by the dust collection mechanism section 30 and sufficiently removed.

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 section 30, the grooved brush 21 and the adsorption pad are used. Since the interposer glass G is pressed from above at the same time, part of the protective sheet S is not sucked into the suction nozzle 31 of the dust collection mechanism unit 30.

When the breaking and dividing of the sheet glass G is completed, the breaking and dividing lever 11 stops rising, and thereafter, starts to fall.

Then, as shown in FIG. 4 (d), the split lever 11 is broken, and when it reaches the "lower standby position" again, it stops descending.

When the break-off split lever 11 is stopped 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 collection mechanism unit 30 is again suppressed.

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

After that, the grooved brush 21 starts to rise.

In addition, along with the rise of the grooved brush 21, the state in which the suction pad 41 keeps holding the unnecessary portion of the plate glass G starts to rise.

Here, as the person who protects the state of the sheet S, The grooved brush 21 and the suction pad 41 are completely released under the pressed state, but as described above, the shutter plate 38 of the suction nozzle 31 has been switched to the "standby mode". Due to the suction pressure of the dust collecting mechanism portion 30, Since it is suppressed, the suction nozzle 31 of the dust collection mechanism part 30 does not attract a part of the protection sheet S, and it is raised while being wound up.

However, even when the shutter plate 38 of the suction nozzle 31 is in the "standby mode", the suction pressure of the dust collection mechanism unit 30 is not completely stopped, and it is effective in a suppressed state. The glass powder and the like temporarily stored in the header container 34 after the suction is completed may not be scattered from the nozzle opening 31B of the nozzle 31.

As shown in FIG. 4 (e), the grooved 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 sheet glass G is adsorbed and moves to a predetermined place (e.g., a discharge conveyor or the like). After the unnecessary part, move to the above "standby position" again and stop.

Then, the sheet glass G that has been broken and divided is carried out from the manufacturing apparatus 1.

Thereby, the operation sequence of the manufacturing apparatus 1 is temporarily ended, 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 sheet glass of the present invention are It is possible to use a technique for attracting and removing glass frit and the like generated when the sheet glass is broken and divided.

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

31A‧‧‧Nozzle body

33‧‧‧Air duct (piping member)

38‧‧‧Gate

38A‧‧‧large hole

38B‧‧‧Small hole

Claims (10)

A method for manufacturing sheet glass is a sheet glass having a scribe line on a first main surface and a second main surface opposite to the first main surface and placed on the protective sheet in contact with the protective sheet. A method for manufacturing a sheet glass that is fractured and divided along the above-mentioned scoring line is characterized in that: by breaking the slicing means, the protective sheet is sandwiched while pressing the second main surface along the scoring line, thereby The sheet glass is broken and divided, and the glass powder generated when the sheet glass is broken and divided from the first main surface side is collected by the dust collecting means. The dust collecting means is capable of collecting the dust by the dust collecting means. There are two types of operation modes selected from the mode and the standby mode. The dust collection mode has a predetermined attractive force for performing dust collection of the glass frit. The standby mode has a relative attractive force compared to the predetermined attractive force. Less attractive. For example, the method for manufacturing sheet glass according to the first scope of the patent application, wherein the dust collecting means includes a suction nozzle that becomes an inlet of the glass powder, a piping member connected to the suction nozzle, and adjusting the piping member. The opening area of the gate plate. For example, the method for manufacturing plate glass according to the second item of the patent application, wherein the gate plate is formed with a large-sized hole and a small-sized hole formed by reducing the diameter of the large-sized hole. The large-diameter hole is moved toward the end of the piping member, and the dust collection means is set to the dust collection mode. On the other hand, the gate plate is directed toward the end of the piping member by the small-diameter hole. Move to set the dust collection means to the standby mode. For example, the method for manufacturing sheet glass according to item 3 of the scope of patent application, wherein the inner diameter of the small-sized hole is 1/4 or more and 1/3 or less of the inner diameter of the large-sized hole. The method for manufacturing a sheet glass according to any one of claims 1 to 4, 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 airlock damper having an opening and closing function is successively connected to the header container. In the dust collection mode, the airlock damper is turned off. In the standby mode, the airlock damper is turned on. A sheet glass manufacturing device is provided with a scribe line on a first main surface, and a second main surface opposite to the first main surface is a protective sheet. The manufacturing method of the plate glass which is placed on the protective sheet in a contact manner, and which breaks and divides along the above-mentioned scoring line, is characterized by including a breaking and dividing means and a dust collecting means. The breaking and dividing means is one side. The protective sheet is sandwiched while pushing the second main surface along the scribe line, thereby breaking and dividing the sheet glass. The dust collecting means is to separate the sheet glass from the first main surface side. The glass powder generated during the fracture and division is used to collect dust; the above-mentioned dust collection means is capable of selecting two types of operation modes composed of a dust collection mode and a standby mode, and the dust collection mode is provided for performing the above-mentioned operations. The predetermined attractive force of dust collection of glass powder; the standby mode has an attractive force relatively weaker than the predetermined attractive force. For example, the apparatus for manufacturing sheet glass according to item 6 of the patent application, wherein the dust collection means includes a suction nozzle that becomes an inlet of the glass powder, a piping member connected to the suction nozzle, and an adjustment of the piping member. The opening area of the gate plate. For example, the apparatus for manufacturing plate glass according to item 7 of the patent application, wherein the gate plate is formed with a large hole and a small hole formed by reducing the diameter of the large hole. The gate plate moves the large-sized hole toward the end of the piping member, and the dust collecting means is set to the dust collection mode. In addition, the gate plate moves the small-sized hole toward the piping. The end of the member moves to set the dust collection means to the standby mode. For example, the manufacturing apparatus of sheet glass according to item 8 of the scope of patent application, wherein the inner diameter of the small-sized hole is 1/4 or more and 1/3 or less of the inner diameter of the large-sized hole. The apparatus for manufacturing sheet glass according to any one of claims 6 to 9, wherein the dust collection means includes a header container connected to the piping member and a header container connected to the header container. In the dust collector, an airlock damper having an opening and closing function is successively connected to the header container. In the dust collection mode, the airlock damper is turned off. In the standby mode, the airlock damper is turned on.