JP2012214323A - Method for producing sheet glass and cleaning brush body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cleaning brush body improving cleanliness of the surface of sheet glass, and to provide a method for producing sheet glass.SOLUTION: The sheet glass is cleaned by rotating a plurality of cleaning brushes aligned in one direction during transporting the sheet glass. Each of cleaning brushes is equipped with a plurality of blade brush parts extending radially. The respective blade brush parts of the respective plurality of cleaning brushes rotate in synchronism so as not to be in contact with each other. In at least one edge in front in rotating direction of the blade brush parts, front sliding elements cleaning by sliding with respect to the glass surface are formed so as to continuously extend along the edge. Further the rear sliding elements are formed so as to continuously extend in the direction inclined in inside the radiating direction of the cleaning brush body from at least one rear edge in the rotating direction of the blade brush parts. Thereby a flow of the cleaning solution is formed on the surface of the sheet glass, during the rotation of the cleaning brush body.

Description

  The present invention relates to a sheet glass manufacturing method and a cleaning brush body having a step of cleaning sheet glass.

  Conventionally, sheet glass has been used for flat panel displays (FPDs) such as displays for liquid crystal display devices. The sheet glass is required to have a high degree of cleaning without dust and dirt because it forms semiconductor elements such as TFT (Thin Film Transistor) elements by a semiconductor process.

  In the manufacturing process of sheet glass, after a thin and strip-shaped glass is cut into a predetermined length, the glass is laminated and stored. Thereafter, the glass is cut by cutting a scribe line into a predetermined size with a diamond cutter or laser light, and bending the thin glass along the cut line. Moreover, it cut | disconnects by fusing by a laser beam. While the glass is being stored, dust, dust, etc. flying in the air adhere to the glass surface. Further, when a slip sheet is sandwiched between glasses and stored, the components of the slip sheet adhere to the glass and the glass becomes dirty. Further, when the glass is cut, small glass pieces having a size of several μm to several 100 μm are scattered as dust from the cut end surface of the glass and adhere to the glass surface as dust. For this reason, before packing and shipping the sheet glass, the sheet glass is washed so that the sheet glass satisfies the shipping standard of a predetermined product.

Under such a background, there is provided a substrate cleaning apparatus that can effectively clean a substrate even when continuously cleaning the substrate by efficiently discharging particles removed from the substrate to the outside of the cleaning brush. Known (Patent Document 1).
Specifically, the cleaning brush includes a main body that rotates under the drive of a motor, and a hairy body that is implanted on the base surface of the main body. For example, the hair-like body is formed by bundling a plurality of bristles made of nylon fibers having a diameter of about 0.1 mm, folding the bristles in half, and embedding the central portion of the bristles in the main body with a metal fitting to form a bunch having a diameter of about several mm. It is configured as an aggregate of formed hairs. The hair-like body is implanted on the spiral surface, which is a continuous line rotating around the center of rotation of the main body while being away from the base surface of the main body. The cleaning brush rotates in the direction opposite to the direction of rotation of the spiral by driving the motor. Thereby, the cleaning liquid containing particles is sent out to the outer side in the circumferential direction of the cleaning brush by the hair. For this reason, it becomes possible to prevent particles from adhering to and remaining on the cleaning brush, and even when a plurality of substrates are continuously cleaned, the substrate can be cleaned cleanly. . Further, such cleaning brushes are arranged in a plurality of stages in a zigzag manner along the substrate transport direction.

Japanese Patent Laid-Open No. 9-171983

  However, when cleaning is performed with the cleaning brush described above, the cleaning spots remain on the substrate between the adjacent cleaning brushes because of the circular main body in which the hairs are embedded. For this reason, the cleaning with the cleaning brush needs to be arranged in a plurality of staggered patterns along the substrate transport direction as described above, and the apparatus configuration is complicated. Further, when the circular main body is rotated at a high speed, the cleaning water is not taken into the cleaning brush, the cleaning cannot be performed sufficiently, and the cleaning ability may be reduced.

  Therefore, in order to solve the conventional problems, the present invention provides a cleaning brush body and a sheet glass manufacturing method capable of improving the degree of cleaning of the surface of the sheet glass in a form different from the known cleaning brush. The purpose is to provide.

One embodiment of the present invention is a method for manufacturing a sheet glass.
The method is
A step of conveying the sheet glass;
And cleaning the surface of the sheet glass by rotating a plurality of cleaning brush bodies arranged in one direction during conveyance of the sheet glass.
Each of the cleaning brush bodies has a rotation center axis perpendicular to the glass surface of the sheet glass, and each of the cleaning brush bodies extends radially from the rotation center axis, with respect to the glass surface of the sheet glass. A plurality of blade brush portions that slide are provided.
The distance between the rotation center axes between each of the plurality of cleaning brush bodies and the adjacent cleaning brush body is the length from the rotation center axis to the tip of the blade brush portion, and the rotation center of the adjacent cleaning brush body. The plurality of cleaning brush bodies are provided so as to be shorter than the total length from the shaft to the tip of the blade brush portion.
Each of the blade brush portions of each of the plurality of cleaning brush bodies is positioned between a blade brush portion of the adjacent cleaning brush body and a blade brush portion adjacent to the blade brush portion on the circumference during rotation. As described above, the plurality of cleaning brush bodies rotate synchronously.
A front sliding body element that slides and cleans against the glass surface is formed on at least one edge in the rotational direction of the blade brush portion so as to continuously extend along the edge. Furthermore, the rear sliding body element that slides and cleans against the glass surface of the sheet glass is at least one rotation direction rear edge of the blade brush portion, with respect to the rotation direction of the cleaning brush body, The cleaning brush body is formed so as to continuously extend in a direction inclined inward in a radial direction of the cleaning brush body. During the rotation of the plurality of cleaning brush bodies, a flow of cleaning liquid is formed on the surface of the sheet glass by the front sliding body element and the rear sliding body element.
Alternatively, a blade between the blade brush portion of the cleaning brush body and a blade brush portion adjacent to the blade brush portion on the periphery is provided on a sliding surface that slides with the sheet glass of each of the cleaning brush bodies. Recess grooves extending toward the rotation center axis are provided in the inter-brush region, and the recess grooves are connected to each other around the rotation center axis. At this time, during the rotation of the plurality of cleaning brush bodies, a flow of cleaning liquid is formed by the concave grooves.

Another aspect of the present invention is a cleaning brush body used in a brush cleaning machine that cleans a sheet glass using a plurality of cleaning brush bodies arranged in the width direction of the sheet glass.
The cleaning brush body has a rotation center axis, and the cleaning brush body includes a plurality of blade brush portions that extend radially from the rotation center axis and slide with respect to the glass surface of the sheet glass.
A front sliding body element that slides and cleans against the glass surface is formed on at least one edge in the rotational direction of the blade brush portion so as to continuously extend along the edge. Furthermore, the rear sliding body element that slides and cleans against the glass surface of the sheet glass is at least one rotation direction rear edge of the blade brush portion, with respect to the rotation direction of the cleaning brush body, The cleaning brush body is formed to continuously extend in a direction inclined inward in the radial direction of the cleaning brush body.

Still another embodiment of the present invention is a cleaning brush body used in a brush cleaning machine that cleans a sheet glass using a plurality of cleaning brush bodies arranged in the width direction of the sheet glass.
The cleaning brush body has a rotation center axis, and the cleaning brush body includes a plurality of blade brush portions that extend radially from the rotation center axis and slide with respect to the glass surface of the sheet glass.
Between the blade brush part between the blade brush part of the cleaning brush body and the blade brush part adjacent to the blade brush part on the periphery, on the sliding surface sliding with the sheet glass of each of the cleaning brush bodies Recess grooves extending toward the rotation center axis are provided in the region, and the recess grooves are connected to each other around the rotation center axis.

  According to the above-described sheet glass manufacturing method and cleaning brush body, it is possible to improve the degree of cleaning of the surface of the sheet glass as compared to the conventional method.

It is a flowchart which shows the flow of the manufacturing method of the sheet glass of this embodiment. (A), (b) is a figure which shows the outline of the washing | cleaning system of one line which performs washing | cleaning of this embodiment. It is a figure explaining arrangement | positioning of the washing brush body of this embodiment in the brush washing machine and sponge brush washing machine which wash | clean a sheet glass. It is a figure explaining the arrangement | positioning of the washing brush body of this embodiment in the brush washing machine and sponge brush washing machine which wash | cleans sheet glass in detail. (A), (b) is a figure which shows an example of the form of the sliding surface of the washing | cleaning brush body of this embodiment, and the flow of a washing | cleaning liquid. It is a figure which shows another example of the form of the sliding surface of the washing | cleaning brush body shown to Fig.5 (a), and the flow of a washing | cleaning liquid. It is a figure explaining the flow of the washing | cleaning liquid around the washing brush body of this embodiment. (A), (b) is a figure which shows another form of the sliding surface of the washing | cleaning brush body of embodiment. It is a figure explaining the flow of the washing | cleaning liquid around the washing | cleaning brush body shown to Fig.8 (a), (b).

Hereinafter, the manufacturing method and cleaning brush body of the sheet glass of this invention are demonstrated in detail based on this embodiment.
The sheet glass manufactured in the present embodiment is a plate glass used for a glass substrate of a display for a liquid crystal display device, and has a thickness of 0.3 to 0.8 mm, for example, and has a size of 2200 mm × 2500 mm (length × width). It is a thin sheet of size.
In addition, the plate-like glass manufactured in this embodiment is not limited to the above, but a cover glass, a plasma display panel, an organic electroluminescence (EL), or the like used for a display screen of an electronic device such as a mobile phone. It may be a plate glass used for flat panel display (FPD).

Although the composition of the sheet glass manufactured by this embodiment is not specifically limited, For example, it can apply to the glass plate of the following composition ratios.
(A) SiO ₂ : 50 to 70% by mass,
(B) B ₂ O ₃ : 5 to 18% by mass,
(C) Al ₂ O ₃ : 10 to 25% by mass,
(D) MgO: 0 to 10% by mass,
(E) CaO: 0 to 20% by mass,
(F) SrO: 0 to 20% by mass,
(O) BaO: 0 to 10% by mass,
(P) RO: 5 to 20% by mass (wherein R is at least one selected from Mg, Ca, Sr and Ba),
(Q) R ′ ₂ O: 0 to 2.0% by mass (wherein R ′ is at least one selected from Li, Na and K),
(R) 0.05 to 1.5 mass% in total of at least one metal oxide selected from tin oxide, iron oxide, and cerium oxide.

(Sheet glass manufacturing method)
FIG. 1 is a flowchart showing the flow of the sheet glass manufacturing method of the present embodiment. As shown in FIG. 1, the melted glass is formed into a base plate that is a strip-shaped glass having a predetermined thickness by a predetermined method, for example, a down draw method or a float method (step S10). Next, scribing and cutting are performed on the formed base plate (step S20), and a sheet glass of a predetermined size is obtained. Thereafter, end face processing including grinding, polishing and corner cutting of the end face of the sheet glass is performed (step S30). In the scribe, a cutting line (scribe line) which is a fine streak-like scratch is put into the base plate using a diamond cutter, laser light or the like. In the above cutting, the base plate is cut by a machine or a manual along the scribe line. Alternatively, the base plate can be cut by fusing with a laser beam.

Thereafter, the sheet glass is washed (step S40). The cleaning will be described in detail later as this embodiment.
The cleaned sheet glass is optically inspected for dust, dirt, or scratches including optical defects (step S50). A plurality of sheet glasses having the quality matched by the inspection are stacked and packed, and shipped to the supplier (step S60).

In the sheet glass manufacturing method, fine glass pieces are generated by scribing and cutting the base plate and machining such as end face processing of the sheet glass, and adhere to the surface of the base plate or sheet glass as dust. Or the stain | pollution | contamination adhering to a tool, a jig | tool, etc. may adhere to the surface of a base plate or a sheet glass at the time of the said machining.
In the sheet glass manufacturing process, after forming the base plate (step S10), before scribing a cut line (scribe line) that is a fine streak-like scratch and cutting along the scribe line (step S20) The base plate may be stacked and stored. While the base plate is being stored, dust, dust, etc. flying in the air adhere to the glass surface of the base plate. In addition, when the slip sheet is sandwiched between the base plates and stored, the components of the slip sheet adhere to the glass surface of the base plate and the glass becomes dirty.
In a state where the sheet glass has such dust and dirt, the shipping standard of a predetermined product cannot be satisfied and it cannot be delivered to a supplier. For this reason, in this embodiment, cleaning is performed using a cleaning apparatus described below.
In particular, when a sheet glass is used for a glass substrate of a display for a liquid crystal display device, a semiconductor element is formed on the glass substrate.

(Cleaning system)
2 (a) and 2 (b) are diagrams showing an outline of one line of the cleaning system 10 that performs cleaning, FIG. 2 (a) is a plan view of the cleaning system 10, and FIG. 2 (b) 1 is a side view of a cleaning system 10. FIG.

In the cleaning system 10, the brush cleaning machine 12, the sponge brush cleaning machine 14, and the shower cleaning machine 16 are arranged in this order from the upstream side in the conveyance direction of the sheet glass G. The cleaning brush body in this specification includes a cleaning brush and a cleaning sponge brush.
In the brush cleaner 12, a plurality of cleaning brushes, which are cleaning brush bodies, are arranged in two rows 12 a and 12 b at different positions (upstream position and downstream position) in the conveyance direction of the sheet glass G. Yes. The brush cleaner 12 cleans the glass surfaces on both sides of the sheet glass G by rotating a plurality of cleaning brushes arranged in a direction orthogonal to the conveyance direction of the sheet glass G during conveyance of the sheet glass G. For example, as shown in FIG. 2B, the cleaning with the cleaning brush is performed by supplying the cleaning liquid stored in the detergent tank 18 from the nozzles 18a and 18b. As the cleaning liquid, for example, an alkaline cleaning liquid is used. Each of the cleaning brushes has a rotation center axis orthogonal to the glass surface of the sheet glass G. Each of the cleaning brushes includes a plurality of blade brush portions that extend radially from the rotation center axis and slide with respect to the sheet glass G. The form of the cleaning brush will be described later.

In this embodiment, two rows of cleaning brushes are provided close to each other at different positions in the sheet glass conveyance direction. Providing two rows of cleaning brushes close to each other means that the rows of cleaning brushes are parallel to each other, for example. At this time, each row of the cleaning brushes extends in a direction orthogonal to the conveyance direction of the sheet glass G, forms that extend linearly or curved in a direction inclined with respect to the conveyance direction, or in the middle The form etc. which are bent and extended so that the extending direction may be changed. The rows of cleaning brushes may be one row, three rows, four rows, or the like in addition to a form in which two rows are provided close to different positions in the sheet glass conveyance direction.
In particular, the cleaning brush of the present embodiment has a blade brush portion as will be described later, and forms the brush so as to take in and discharge the cleaning liquid, so that it is on the substrate between adjacent cleaning brushes as in the prior art. No cleaning spots remain. For this reason, the cleaning with the cleaning brush is effective as compared with the prior art in that it is not necessary to arrange the cleaning brush in a plurality of stages in a zigzag manner along the substrate transport direction as described above. That is, even if there is one row of cleaning brushes, it has a sufficient cleaning function. However, in this embodiment, two rows are arranged in order to further improve the cleaning function.
The sheet glass G is cleaned by the brush cleaner 12 while being transported by a transport mechanism (not shown), and then transported to the sponge brush cleaner 14 by a transport mechanism (not shown).

  In the sponge brush cleaner 14, similarly to the brush cleaner 12, the cleaning sponge brushes that are the cleaning brush bodies are arranged at different positions (upstream position and downstream position) in the conveyance direction of the sheet glass G. Are arranged. Specifically, a plurality of cleaning sponge brushes are arranged in two rows 14a and 14b. The sponge brush cleaner 14 cleans the glass surfaces on both sides of the sheet glass G by rotating a plurality of cleaning sponge brushes arranged in a direction orthogonal to the sheet glass G conveyance direction during conveyance of the sheet glass G. . For example, as shown in FIG. 2B, the cleaning with the cleaning sponge brush is performed by supplying the cleaning liquid stored in the detergent tank 18 from the nozzles 18c and 18d. Each of the cleaning sponge brushes has a rotation center axis orthogonal to the surface of the sheet glass G, and each of the cleaning sponge brushes extends radially from the rotation center axis and slides with respect to the sheet glass G. A part. The form of the cleaning sponge brush will be described later.

In this embodiment, similarly to the cleaning brush, the cleaning sponge brushes are provided in two rows close to different positions in the sheet glass conveyance direction. Providing two rows of cleaning sponge brushes close to each other means, for example, that the rows of cleaning sponge brushes are parallel to each other. At this time, each row of the cleaning sponge brushes extends in a direction orthogonal to the conveyance direction of the sheet glass G, linearly in a direction inclined with respect to the conveyance direction, or extends in a curved manner, or The form etc. which are bent and extended so that the direction extended in the middle may be mentioned. The rows of cleaning sponge brushes may be one row, three rows, four rows, or the like, in addition to a form in which two rows are provided close to different positions in the sheet glass conveyance direction.
The sheet glass G is cleaned by the sponge brush cleaner 14 while being transported by a transport mechanism (not shown), and is then transported to the shower cleaner 16 by a transport mechanism (not shown).

In the shower washer 16, the water in the pure water tank 20 is supplied through the nozzles 20a and 20b, and the sheet glass G is washed while being conveyed by a conveyance mechanism (not shown).
In order to perform the above cleaning on the glass surfaces on both sides of the sheet glass G at the same time, rows 12a, 12b, 14a, 14b of cleaning brushes and cleaning sponge brushes are provided on both sides of the glass surface.
In this embodiment, the cleaning brush and cleaning sponge brush rows 12a, 12b, 14a, 14b are provided on both sides of the glass surface, but may be provided only on one side. That is, the brush cleaner 12 and the sponge brush cleaner 14 can clean at least one glass surface of the sheet glass G.

(Cleaning brush, cleaning sponge brush)
3 and 4 are diagrams illustrating the arrangement of the cleaning brush and the cleaning sponge brush in the brush cleaning machine 12 and the sponge brush cleaning machine 14 that clean the sheet glass G. FIG.
Hereinafter, since the cleaning brush and the cleaning sponge brush have the same arrangement and form, the cleaning brush will be described as a representative.

A plurality of cleaning brushes 22a, 22b, 22c, 22d,... Are provided in the row 12a of the brush cleaner 12 shown in FIG. The plurality of cleaning brushes 22a, 22b, 22c, 22d,. Each of the cleaning brushes 22 has rotation center axes 24a, 24b, 24c, 24d,... Orthogonal to the surface of the sheet glass G (referred to as the rotation center axis 24 when the rotation center axes are described collectively), Each of the cleaning brushes 22 includes a plurality of blade brush portions 26 (see FIG. 4) that extend radially from the rotation center shaft 24 and slide with respect to the glass surface of the sheet glass G. Similarly to the row 12 a, a plurality of cleaning brushes 22 are also provided in the row 12 b along the direction Y orthogonal to the conveyance direction X of the sheet glass 22. However, the position in the Y direction of the rotation center axis 24 of the cleaning brush 22 in the row 12b is provided at an intermediate position between the positions in the Y direction of the rotation center axes 24 of two adjacent cleaning brushes 22 in the row 12a. That is, the cleaning brushes 22 in the rows 12a and 12b are provided alternately (in a staggered manner). In this way, the position of the rotation center axis of the row 12b is set because the cleaning liquid 22 adjacent to the row 12a takes in the cleaning liquid by the blade brush portion 26 and cleans it, and then the cleaning liquid discharged by the blade brush portion 26 is aligned. This is because the blade brush portion 26 of the cleaning brush 22 of 12b efficiently takes in and can clean more uniformly over the entire width of the sheet glass G.
The angle between adjacent blade brush portions 26 in the cleaning brush 22 of the present embodiment is 60 degrees because there are six blade brush portions 26 on the circumference, but the angle can be in the range of 30 to 180 degrees. is there. The larger the angle, the faster the cleaning brush 22 must be rotated to ensure cleaning power. In this case, the cleaning liquid may not be taken into the cleaning brush 22. On the other hand, the smaller the angle, the more effectively the cleaning liquid cannot be taken in and discharged by the blade brush 22. For this reason, the angle is preferably 30 to 90 degrees, and more preferably 30 to 60 degrees. In terms of the number of blade brush portions 26, the number of blade brush portions 26 can be 2-12, preferably 4-12, and more preferably 6-12. Within this number range, the overlapping region where the blade brush portions 26 of the adjacent cleaning brushes 22 clean the glass surface can be widened.

As shown in FIG. 4, the distance L between the rotation center axes between each of the plurality of cleaning brushes 22 and the adjacent cleaning brush is the length l from the rotation center axis 24 to the tip of the blade brush part 26. _The plurality of cleaning brushes 22 are provided so as to be shorter than the total (l ₁ + l ₂ ) of ₁ and the length l ₂ from the rotation center axis 24 of the adjacent cleaning brush 22 to the tip of the blade brush portion 26. In the embodiment shown in FIG. 4, the length of the blade brush portion 26 is the same in any cleaning brush 22, but may be different. That is. l ₁ ≠ l ₂ may be sufficient.

As described above, the distance L between the rotation center axes is shorter than (l ₁ + l ₂ ) because the blade brush portions 26 of the adjacent cleaning brushes 22 slide on the same region of the sheet glass G with each other. This is because the degree of cleaning is increased as compared with the above. Further, since the glass surface is slid many times by the plurality of blade brush portions 26 of one cleaning brush 22, the degree of cleaning is increased. Moreover, since the flow of the cleaning liquid is made by the rotation of the blade brush portion 26, the cleaning liquid efficiently flows on the glass surface. In particular, as in the rows 12a and 12b, the cleaning brushes 26 are provided at different positions in the conveying direction of the sheet glass G, and the rotation center shafts 24 of the cleaning brush 26 are provided alternately (in a staggered manner), thereby cleaning adjacent to each other The overlapping region cleaned by the blade brush portions 26 of the brush 22 covers substantially the entire glass surface of the sheet glass G. As a result, a sheet glass without uneven cleaning can be obtained.

  Further, each of the blade brush portions of the plurality of cleaning brushes 22 is positioned between the blade brush portion of the adjacent cleaning brush and the blade brush portion adjacent to the blade brush portion on the circumference during rotation. In addition, the plurality of cleaning brushes 22 rotate synchronously. For example, the blade brush part 26 of the cleaning brush 22 at the uppermost position in the row 12a in FIG. 4 has the blade brush part 26 of the adjacent cleaning brush 22 second from the top and the blade brush part 26 on the circumference. Each of the cleaning brushes 22 rotates synchronously so as to be positioned between adjacent blade brush portions 27 (see FIG. 4). The second cleaning brush 22 from the top and the third cleaning brush 22 from the top rotate in synchronization. At that time, each of the cleaning brushes 22 and the adjacent cleaning brush 22 have the opposite rotation directions. Thus, if the cleaning brush 22 is rotated synchronously and is not rotated in the direction opposite to the adjacent cleaning brush 22, the adjacent blade brush portions 26 collide with each other.

  Note that adjacent cleaning brushes 22 of the cleaning brush 22 rotate in synchronization with each other at a timing at which the blade brush portions 26 do not contact each other. Non-contact means that when the adjacent cleaning brushes 22 come into contact with each other during cleaning (rotation), a part of the brush base (metal, resin, etc.) is damaged and fragments are generated, which may cause a foreign matter trouble. Because. Therefore, in this embodiment, for example, a configuration in which the cleaning brushes 22 are in contact with each other like a “gear” that conducts power is not employed.

  Further, the sheet glass G is cleaned with the cleaning brush 22 using the cleaning liquid supplied onto the glass surface of the sheet glass G. The cleaning liquid is supplied from the nozzles 18a and 18b to regions where the blade brush portions 26 of the cleaning brush 22 adjacent to the blade brush portions 26 approach each other by rotation. In the embodiment shown in FIG. 4, in the shaded area A, the blade brush part 26 of the cleaning brush 22 located at the top of the drawing and the blade brush part 26 of the cleaning brush 22 located second from the top rotate. And try to entrain the cleaning solution efficiently. Therefore, the vane brush part 26 of the cleaning brush 22 positioned at the top in FIG. 4 and the blade brush part 26 of the cleaning brush 22 positioned second from the top are subjected to the cleaning liquid in the hatched area A that is about to approach by rotation. Nozzle 18 (18a, 18b, 18c, 18d) is provided and supplied onto the glass surface of the sheet glass G. As a result, the cleaning liquid flows on the glass surface by the sliding action with the glass surface of the blade brush portion 26 and efficiently cleans the glass surface.

(Washing brush form)
Fig.5 (a) is a figure which shows the form of the sliding surface of the cleaning brush 22 used for the brush washing machine 12 of this embodiment. The cleaning brush 22 is configured by flocking fibers on a metal or resin base.
As shown in FIG. 5A, the cleaning brush 22 used in the brush cleaning machine 12 has a large number of fibers 28 made of nylon (circles in FIG. 5A) 28 planted on the base, so-called. Make up brush. Also in the sponge brush cleaner 14 of the present embodiment, instead of the front sliding brush 26b, the rear sliding brush 26d, and the center sliding brush 26e described below, a front sliding sponge, a rear sliding sponge, and The center sliding sponge can be used as a front sliding element, a rear sliding element, and a central sliding element.

In the cleaning brush 22 shown in FIG. 5A, the front sliding in which the three blade brush portions 26 out of the six blade brush portions 26 slide in the rotational direction on the front edge 26a is cleaned against the glass surface. The brush 26b is formed so as to continuously extend along the edge 26a.
Further, the rear sliding brush 26 d that slides and cleans against the glass surface of the sheet glass G is provided with the cleaning brush 22 from the rear edge 26 c in the rotational direction of the three blade brush portions 26 among the six blade brush portions 26. With respect to the rotation direction, the column shape is formed so as to continuously extend in a direction inclined radially inward. The rear sliding brush 26 d is provided in a plurality of rows in each of the three blade brush portions 26.

As shown in FIG. 5B, the front sliding brush 26b of the blade brush portion 26 slides and cleans the glass surface and pushes the cleaning liquid forward. At this time, it flows along the extending direction of the rear sliding brush 26d of the blade brush portion 26 'located in front of the blade brush portion 26, and a streamline B shown in FIG. That is, the cleaning liquid taken in by the rotation of the blade brush part 26 and pressurized between the adjacent blade brush parts 26 passes through the gap between the adjacent rear sliding brushes 26d (between rows), , Is pressurized by the rotation (centrifugal force) of the blade brush portion 26, and flows out from the gap between the adjacent rear sliding brushes 26d of another blade brush portion 26. As described above, the front sliding brush 26b slides and cleans the glass surface and pushes the cleaning liquid forward to flow through the blade brush portion 26, so that the cleaning liquid can be efficiently flowed. At this time, by providing the rear sliding brush 26d on the blade brush portion 26 'located in front of the blade brush portion 26, the cleaning liquid can be efficiently flowed to another region. It is preferable to provide it.
The inclination angle θ (see FIG. 5B) in the extending direction of the rear sliding brush 26b with respect to the rotation direction of the cleaning brush 22 is 10 to 80 degrees, and is 20 to 70 degrees. It is preferable at a point, and it is more preferable that it is 30-60 degrees. The blade brush portion 26 is provided with three rows of rear sliding brushes 26d, but is not limited to three rows, and may be one row, two rows, four rows or more. Further, the inclination angle θ of the rear sliding brush 26b does not have to be the same in a plurality of rows, and the inclination angle θ may change.
As shown in FIG. 5 (a), a central sliding brush 26e, which extends continuously so as to cover the rotation center axis of the cleaning brush 22 and slides and cleans against the glass surface, The cleaning brush body 22 is formed at the base portion around the rotation center axis. Forming the center sliding brush 26e is preferable in that the cleaning liquid can be efficiently flowed along the streamline B.

In the form of the cleaning brush 22 shown in FIG. 5A, depending on the rotation, the configuration is the same as that of the front sliding brush 26b. However, the sliding brush 22 extends continuously along the rear edge of the blade brush portion 26. The moving brush and the sliding brush 26 that has the same configuration as the rear cleaning brush 26d but extends continuously rearward in the rotational direction from the front edge in the rotational direction of the blade brush portion 26 may be cleaned in proximity. . FIG. 6 shows such a state.
In this case, the cleaning liquid flows along the arrow shown in FIG. In this way, a cleaning liquid flow is created in cooperation with the adjacent cleaning brush 22, and the cleaning brush 22 repeatedly takes in and discharges the cleaning liquid.

The front sliding brush 26b shown in FIG. 5A is provided at the edge on the front side in the rotational direction only in three blade brush portions 22 among the six blade brush portions 22, and in the remaining three blade brush portions 22. Is provided with a sliding brush having the same configuration as the front sliding brush 26b at the rear edge. Similarly, the rear sliding brush 26d is provided at the rear edge in the rotational direction only in the three blade brush portions 22 of the six blade brush portions 22, and the remaining three blade brush portions 22 in the front side. A sliding brush having the same configuration as that of the rear sliding brush 26d is provided at the edge.
This is because adjacent cleaning brushes 22 having the same form are used, and the number of components of the brush cleaning machine 12 is not increased. However, in order to perform cleaning more efficiently while maintaining the flow of the cleaning liquid constant, it is preferable that the front sliding brush 26b is provided on the front edge in the rotational direction in all the six blade brush portions 22. At this time, in order to allow the cleaning liquid to flow more efficiently, the rear sliding brush 26d is preferably provided on the rear edge in the rotational direction in all of the six blade brush portions 22.

In FIG. 7, the front sliding brush 26 b is provided at the edge on the front side with respect to the rotation direction in all of the six blade brush portions 22, and the rear sliding brush 26 d is provided on the six blade brush portions 22. It is a figure which shows the form provided in a rear edge with respect to the rotation direction in all. Therefore, the cleaning brush 22 having such a configuration has a rotational direction set in one direction. In this case, it flows along the streamline C as shown in FIG.
Also in this case, it is preferable that the center sliding brush 26e is formed at the base portion around the rotation center axis of the cleaning brush body 22 from the viewpoint of efficiently flowing the cleaning liquid along the streamline C.
Since the cleaning brush 22 shown in FIG. 7 has a predetermined rotation direction, it is a different type of brush from the adjacent cleaning brush 22.

In this embodiment, the front sliding brush 26c is provided on the front edge 26b in three or six of the six blade brush portions 26, but in at least one or more of the six blade brush portions 26, The sliding brush 26b should just be provided in the front edge 26b.
In this embodiment, the rear sliding brush 26d is provided on the rear edge 26c in three or six of the six blade brush portions 26, but in at least one or more of the six blade brush portions 26. The rear sliding brush 26d only needs to be provided on the rear edge 26c.

As described above, in the present embodiment, the distance L between the rotation center axes between each of the plurality of cleaning brushes 22 and the adjacent cleaning brush 22 is the length from the rotation center axis to the tip of the blade brush part 26. By providing the plurality of cleaning brushes 22 so as to be shorter than the total length (l ₁ + l ₂ ) from the rotation center axis of the adjacent cleaning brush 22 to the tip of the blade brush part 26, the blade brush part 26 is provided. Wash over the same area. At this time, a front sliding brush 26b that slides and cleans against the glass surface is formed to extend continuously along the edge on at least one edge of the blade brush portion 26 in the rotational direction. ing. Further, the rear sliding brush 26d is formed so as to continuously extend from the rear edge in the rotation direction in a direction inclined radially inward of the cleaning brush 22 with respect to the rotation direction of the cleaning brush 22. For this reason, a washing | cleaning liquid can be efficiently poured on a glass surface compared with the brush planted by the uniform density. As a result, the cleaning degree is improved by the chemical action of the cleaning liquid.
A conventional cleaning brush provided with a brush on a circular main body cannot be cleaned at an excessively high speed rotation because the cleaning liquid does not enter the brush at a high speed rotation. However, in the cleaning brush 22 of the present embodiment, the cleaning liquid is always supplied into the cleaning brush 22 by the blade brush portion 28 of the adjacent cleaning brush 22, so that the cleaning performance does not deteriorate even at high speed rotation. This point has been confirmed by experiments.
Further, since the cleaning liquid is always supplied into the cleaning brush 22, each brush of the cleaning brush 22 is cleaned by the self-cleaning action, and is always kept clean without any deposits remaining.

(Another form of cleaning brush)
FIGS. 8A and 8B are diagrams showing another form of the sliding surface of the cleaning brush used in the brush cleaner 12 of the present embodiment.
In the form shown in FIG. 8A, a recessed groove 32 extending toward the rotation center axis 24 is provided. That is, on the sliding surface of the cleaning brush 22 constituting the brush in which the fibers 28 are implanted, the blade brush portion 26 of the cleaning brush 22 and the blade brush portion 26 that is adjacent to the blade brush portion 26 on the circumference thereof are arranged. Recess grooves 32 are respectively provided in the inter-blade brush region D. Each of the recessed grooves 32 is connected to each other around the rotation center axis 24. That is, the fibers 28 are not planted in the recessed groove 32 and the region where the recessed groove 32 is connected around the rotation center axis 24.

  The form shown in FIG. 8B is a form in which a sponge 30 is provided, and a concave groove 32 extending toward the rotation center axis 24 is provided. That is, the sliding surface of the cleaning sponge brush 23 has a recess in a region D between the blade brushes between the blade brush portion 26 of the cleaning sponge brush 23 and the blade brush portion 26 adjacent to the blade brush 26 on the circumference. Each groove 32 is provided. Each of the recessed grooves 32 is connected to each other around the rotation center axis 36. That is, the sponge 30 is not provided in the recessed groove 32 and the region where the recessed groove 32 is connected around the rotation center axis 24.

Thus, in this embodiment, since the blade brush part 26 is provided so that the distance L between rotation center axes becomes shorter than (l ₁ + l ₂ ), the blade brush part 26 overlaps the same region. Wash.
At this time, by providing the concave groove 32 in the inter-blade brush region D, the cleaning brush 22 and the cleaning sponge brush 23 can circulate the cleaning liquid more efficiently. That is, as shown in FIG. 9, in the inter-blade brush region D where the blade brush portions 26 of the adjacent cleaning brushes 22 or the cleaning sponge brushes 23 are close to each other, the pressure of the cleaning liquid increases, and as the blade brush portion 26 rotates. It is discharged backward. However, by allowing a part of the cleaning liquid to flow into the other inter-blade brush region D via the recess groove 32, the cleaning liquid can be circulated efficiently and used in another inter-blade brush region D. That is, the cleaning liquid taken in by rotation of the blade brush part 26 and pressurized between the adjacent blade brush parts 26 flows into the blade brush part 26 from the recessed groove 32 arranged in the blade brush part 26. The flow of the cleaning liquid that is pressurized by the rotation (centrifugal force) of the blade brush portion 26 and flows out from the other recessed groove 32 is formed. Thereby, the cleaning degree of the sheet glass surface can be improved compared with the past.

  As mentioned above, although the manufacturing method and washing | cleaning brush body of the sheet glass of this invention were demonstrated in detail, this invention is not limited to the said embodiment, In the range which does not deviate from the main point of this invention, various improvement and a change are carried out. Of course it is also good.

DESCRIPTION OF SYMBOLS 10 Cleaning system 12 Brush washing machine 12a, 12b, 14a, 14b Row 14 Sponge brush washing machine 16 Shower washing machine 18 Detergent tank 18a, 18b, 18c, 18d, 20a, 20b Nozzle 20 Pure water tank 22, 22a, 22b, 22c , 22d Cleaning brush 23 Cleaning sponge brushes 24, 24a, 24b, 24c, 24d Rotation center shafts 26, 26 'Blade brush portions 26a, 26c Edge 26b Front sliding brush 26d Back sliding brush 26e Center sliding brush 28 Fiber 32 Recess groove

Claims (10)

A method of manufacturing a sheet glass,
A step of conveying the sheet glass;
Cleaning the surface of the sheet glass with a cleaning liquid by rotating a plurality of cleaning brush bodies arranged in one direction during the conveyance of the sheet glass,
Each of the cleaning brush bodies has a rotation center axis perpendicular to the glass surface of the sheet glass, and each of the cleaning brush bodies extends radially from the rotation center axis, with respect to the glass surface of the sheet glass. It has a plurality of blade brush parts that slide,
The distance between the rotation center axes between each of the plurality of cleaning brush bodies and the adjacent cleaning brush body is the length from the rotation center axis to the tip of the blade brush portion, and the rotation center of the adjacent cleaning brush body. The plurality of cleaning brush bodies are provided so as to be shorter than the total length from the shaft to the tip of the blade brush part,
Each of the blade brush portions of each of the plurality of cleaning brush bodies is positioned between a blade brush portion of the adjacent cleaning brush body and a blade brush portion adjacent to the blade brush portion on the circumference during rotation. The plurality of cleaning brush bodies rotate synchronously,
At least one rotation direction front edge of the blade brush portion is formed such that a front sliding body element that slides and cleans against the glass surface continuously extends along the edge,
The rear sliding body element that slides and cleans against the glass surface of the sheet glass is configured to perform the cleaning with respect to the rotational direction of the cleaning brush body from at least one rear edge of the blade brush portion in the rotational direction. The front slide element and the rear slide element are formed on the surface of the sheet glass during rotation of the plurality of cleaning brush bodies. A flow of cleaning liquid is formed by the method for producing sheet glass.   The method for producing sheet glass according to claim 1, wherein in the cleaning step, the front sliding body element and the rear sliding body element are cleaned in proximity between adjacent cleaning brush bodies.   The manufacturing of the sheet glass according to claim 1 or 2, wherein the front sliding body element is continuously formed along the edge at all the rotation direction front edges of the blade brush portion. Method.   The rear sliding body element continuously extends in a direction inclined inward in the radial direction of the cleaning brush body with respect to the rotational direction of the cleaning brush body from all the rearward edges in the rotational direction of the blade brush portion. The manufacturing method of the sheet glass of any one of Claims 1-3 currently formed so that it may do.   The manufacturing method of the sheet glass of Claim 2 or 4 whose inclination | tilt angle with respect to the said rotation direction of the extension direction of the said back slide body element is 10-80 degree | times. A central sliding body element that slides and cleans against the glass surface of the sheet glass is formed at the base around the rotation center of the cleaning brush body,
The said center sliding body element is a manufacturing method of the sheet glass of any one of Claims 1-5 extended so that the circumference | surroundings of the said rotation center axis may be covered.   The back sliding element is provided in a plurality of rows spaced apart from each other in at least one of the blade brush portions, and a flow of cleaning liquid is formed between the plurality of rows. The manufacturing method of the sheet glass as described in a term. A method of manufacturing a sheet glass,
A step of conveying the sheet glass;
Cleaning the surface of the sheet glass with a cleaning liquid by rotating a plurality of cleaning brush bodies arranged in one direction during the conveyance of the sheet glass,
Each of the cleaning brush bodies has a rotation center axis perpendicular to the glass surface of the sheet glass, and each of the cleaning brush bodies extends radially from the rotation center axis, with respect to the glass surface of the sheet glass. It has a plurality of blade brush parts that slide,
The distance between the rotation center axes between each of the plurality of cleaning brush bodies and the adjacent cleaning brush body is the length from the rotation center axis to the tip of the blade brush portion, and the rotation center of the adjacent cleaning brush body. The plurality of cleaning brush bodies are provided so as to be shorter than the total length from the shaft to the tip of the blade brush part,
Each of the blade brush portions of each of the plurality of cleaning brush bodies is positioned between a blade brush portion of the adjacent cleaning brush body and a blade brush portion adjacent to the blade brush portion on the circumference during rotation. The plurality of cleaning brush bodies rotate synchronously,
Between the blade brush part between the blade brush part of the cleaning brush body and the blade brush part adjacent to the blade brush part on the periphery, on the sliding surface sliding with the sheet glass of each of the cleaning brush bodies Recess grooves extending toward the rotation center axis are respectively provided in the regions, and each of the recess grooves is connected to each other around the rotation center axis,
During the rotation of the plurality of cleaning brush bodies, a flow of the cleaning liquid is formed on the surface of the sheet glass by the concave groove. A cleaning brush body used in a brush cleaning machine for cleaning sheet glass using a plurality of cleaning brush bodies arranged in the width direction of the sheet glass,
The cleaning brush body has a rotation center axis, and the cleaning brush body includes a plurality of blade brush portions extending radially from the rotation center axis and sliding with respect to the glass surface of the sheet glass,
At least one rotation direction front edge of the blade brush portion is formed such that a front sliding body element that slides and cleans against the glass surface continuously extends along the edge,
The rear sliding body element that slides and cleans against the glass surface of the sheet glass is configured to perform the cleaning with respect to the rotational direction of the cleaning brush body from at least one rear edge of the blade brush portion in the rotational direction. A cleaning brush body, wherein the cleaning brush body is formed so as to continuously extend in a direction inclined inward in a radial direction of the brush body. A cleaning brush body used in a brush cleaning machine for cleaning sheet glass using a plurality of cleaning brush bodies arranged in the width direction of the sheet glass,
The cleaning brush body has a rotation center axis, and the cleaning brush body includes a plurality of blade brush portions extending radially from the rotation center axis and sliding with respect to the glass surface of the sheet glass,
Between the blade brush part between the blade brush part of the cleaning brush body and the blade brush part adjacent to the blade brush part on the periphery, on the sliding surface sliding with the sheet glass of each of the cleaning brush bodies A cleaning brush body, wherein a recessed groove extending toward the rotation center axis is provided in each region, and each of the recessed grooves is connected to each other around the rotation center axis.

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