JP2004203668A - Acid treatment equipment for plate - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an acid treatment equipment for a plate glass by which the quality of the plate glass such as a large-sized or thin plate glass is improved and the plate glass is quickly and effectively treated with acid. <P>SOLUTION: The acid treatment equipment for the plate glass is provided with a free roller 20 supporting the lower end of the plate glass in the erected state, an acid treatment roller 19 vertically provided to face one surface of the plate glass and having a surface part formed from a porous material, an acid treatment liquid supply apparatus for supplying an acid treatment liquid to the surface part of the acid treatment roller 19, an acid treatment apparatus 6 having a motor 18 rotary driving the acid treatment roller 19, a washing apparatus 3 mounted in the upstream side of the acid treatment roller 19 and a cleaning apparatus 7 mounted in the downstream side. The acid treatment apparatus is constituted so as to transport the plate glass G while being in contact with the acid treatment liquid on the surface of the acid treatment roller 19 by the rotation of the acid treatment 19. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a plate material acid treatment facility and an acid treatment device therefor. More specifically, the present invention relates to a plate material acid treatment apparatus for treating the surface of a plate material such as rare metal, silicon, and flat display glass with an acid, and an acid treatment facility for a plate material using the acid treatment apparatus.
[0002]
[Prior art]
Conventionally, sheet glass has been used in various fields. In particular, a sheet glass (hereinafter, referred to as a glass substrate) used for a liquid crystal display, a plasma display, or the like is very thin. For example, many products having a thickness of about 0.7 mm and a size of about 550 mm × 650 mm are produced. Such processing such as trimming and cutting of the glass substrate is generally performed in a horizontal state (horizontal state), the sheet glass is conveyed by a belt conveyor or the like, and each apparatus is in a horizontal state. The acid treatment performed to obtain a desired surface state on the processed glass sheet is also performed in a horizontal state (for example, see Patent Literature 1, Patent Literature 2, and Patent Literature 3).
[0003]
On the other hand, in recent years, in the field of glass substrates and the like, motherboards serving as a basis for a plurality of glass substrates have been developed for the purpose of improving yield in order to improve productivity, and for supporting larger displays and the like. There is a demand for increasing the size of glass. Increasing the size of the mother glass increases the number of glass substrates that can be obtained from one mother glass, thereby improving the yield. Further, a glass substrate for a large display can be manufactured. In addition, there is a demand to improve the performance of a display or the like by further reducing the thickness of the glass substrate, and the mother glass tends to be thinner. In addition, the requirements for the quality of the glass substrate are getting stricter each year, and there is also a demand for cost reduction.
[0004]
[Patent Document 1]
Japanese Patent Publication No. 4-37018
[Patent Document 2]
JP-A-11-217240
[Patent Document 3]
JP-A-2000-140778
[0005]
[Problems to be solved by the invention]
However, in the above-described technology of transporting a sheet glass in a horizontal state and treating it with an acid, a large-sized, thinned sheet glass is subjected to acid treatment. There is a possibility that a crack or the like may occur due to a reaction force from the member.
[0006]
The present invention has been made in order to solve such problems, and has been made an acid treatment that can prevent damage such as cracks on a sheet material including a large and thin sheet glass, and further improve the quality of the sheet material. It is an object of the present invention to provide a plate material acid treatment facility and an acid treatment device capable of performing the above.
[0007]
[Means for Solving the Problems]
The plate acid treatment apparatus according to the present invention is a transfer device that supports the lower end of the plate material in an upright state and transfers the plate material horizontally.
An acid treatment member that can include an acid treatment liquid is provided on the surface of the plate member so as to face at least one surface of the plate material,
An acid treatment liquid supply device for supplying an acid treatment liquid to the surface of the acid treatment member,
The transport device is configured to transport the plate material while being in contact with the acid treatment liquid on the surface of the acid treatment member.
[0008]
According to such a configuration, since the plate material is in an upright state, the surface of the plate material can be acid-treated without any influence of its own weight or a large reaction force from the structure. Therefore, not only dust but also oils and fats can be removed. Furthermore, the space of equipment can be saved.
[0009]
Another acid treatment device according to the present invention, a support device that supports the lower end of the plate material in an upright state,
An acid treatment roller, which is provided upright so as to face at least one surface of the plate material, and may include an acid treatment liquid on its surface,
An acid treatment liquid supply device for supplying an acid treatment liquid to a surface portion of the acid treatment roller,
A rotation driving device for rotating the acid treatment roller around its axis, and configured to convey the plate material while being in contact with the acid treatment liquid on the surface of the acid treatment roller by the rotation of the acid treatment roller. I have.
[0010]
According to this configuration, in addition to the action of the above-described acid treatment apparatus of the present invention, since the acid treatment member (roller) has a plate material conveyance function, there is no need to prepare a special conveyance apparatus.
[0011]
Still another acid treatment device according to the present invention, a support device that supports the lower end of the plate material in an upright state,
An endless belt for acid treatment, which is disposed so as to face at least one surface of the plate material and may include an acid treatment liquid on its surface,
An acid treatment liquid supply device for supplying an acid treatment liquid to a surface portion of the endless belt,
A rotation drive device for rotating the endless belt,
By rotating the endless belt, the plate is transported while being in contact with the acid treatment liquid on the surface of the endless belt.
[0012]
According to this configuration, in addition to the operation of the above-described acid treatment apparatus of the present invention, the number of acid treatment members (endless belts) can be reduced.
[0013]
Note that a porous material such as a sponge is suitably used as a surface material of the acid-treated member that can contain the acid-treated solution in the surface portion described above.
[0014]
In the acid treatment apparatus in which the supporting device is constituted by a plurality of freely rotatable free rollers arranged in parallel, it is preferable because the transport of the plate material is smoothly performed.
[0015]
In the acid treatment apparatus, wherein the acid treatment member is composed of a plurality of vertically long acid treatment member elements which are arranged in parallel and spaced apart from each other in place of the roller, the acid treatment member Is simplified.
[0016]
In an acid treatment apparatus in which the acid treatment member element is erected from the vertical direction to the upstream or downstream side in the transport direction of the plate material, the acid treatment liquid from the acid treatment member element flows vertically. Since it does not flow along the acid treatment member element, the amount of the acid treatment liquid on the surface of the acid treatment member element is made uniform. In addition, it is preferable for a plate material in which only one surface is acid-treated because the acid treatment liquid is prevented from flowing from the acid-treated surface to the opposite surface.
[0017]
For the acid treatment liquid supply device, a plurality of acid treatment liquid supply ports are provided at intervals in the vertical direction with respect to the surface portion, and the acid treatment liquid is supplied in accordance with the size of the plate material to be acid treated. The supply port for supplying the acid treatment liquid can be switched.
[0018]
Alternatively, the acid treatment liquid supply device is provided with an acid treatment liquid supply port movable vertically with respect to the surface portion, and the acid treatment liquid supply port is moved up and down according to the size of the plate material to be acid treated. It is also possible to configure so as to be able to be performed.
[0019]
The plate acid treatment equipment of the present invention is a transport device that supports and transports the lower end of the plate material in an upright state,
A fluid guide that supports the plate in a non-contact manner in a standing state by applying fluid pressure to the surface of the plate;
Any one of the acid treatment devices described above, which is inserted and disposed in the middle of the transport path of the transport device,
And a spray device for spraying water on the surface of the plate material, which is disposed on the upstream side of the acid treatment device in the transport path.
[0020]
With this configuration, the plate can be acid-treated without being affected by its own weight or receiving a large reaction force from the structure. Furthermore, the space of equipment can be saved.
[0021]
Another acid treatment equipment of the present invention, a transport device that supports and transports the lower end of the plate material in an upright state,
A fluid guide that supports the plate in a non-contact manner in a standing state by applying fluid pressure to the surface of the plate;
Any one of the acid treatment devices described above, which is inserted and disposed in the middle of the transport path of the transport device,
A cleaning device disposed on the downstream side of the acid treatment apparatus in the transport path and for injecting water for removing the acid treatment liquid onto the surface of the plate material;
[0022]
The acid treatment equipment of the present invention may include both the spraying device and the cleaning device.
[0023]
In an acid treatment facility comprising a drainer for injecting a film-like airflow toward a non-treatment surface of a sheet material on the upstream side of the spraying device in the transport path, there is a possibility that the acid treatment facility may adhere to the surface of the sheet glass in the upstream process. It is preferable because particles, dust, and the like are removed together with moisture, and thereafter, drying of the non-treated surface can be prevented by spraying.
[0024]
It is preferable that the cleaning device includes a fountain nozzle that sprays water toward a surface of the plate material that has been subjected to the acid treatment.
[0025]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of an acid treatment facility for a sheet material of the present invention and an acid treatment apparatus suitably used for the acid treatment facility will be described with reference to the accompanying drawings.
[0026]
FIG. 1 is a front view showing an embodiment of the acid treatment equipment of the present invention, and FIG. 2 is a plan view thereof.
[0027]
The illustrated acid treatment equipment 1 is provided with a belt conveyer 2 for transporting in the horizontal direction while supporting the bottom of the rectangular plate glass G in an upright state, except for an acid treatment device 6 described later. ing. Not only a belt conveyor but also a known conveyor such as a roller conveyor can be used. A washing device 3 for washing the surface of the sheet glass G with pure water along a conveying direction by the belt conveyor 2, that is, along a pass line L of the sheet glass, and a tilting device for slightly inclining the sheet glass G from a vertical state. 4, a drainer 5 for removing water from the surface of the glass sheet G, an acid treatment apparatus 6 for treating one side of the glass sheet G with an acid treatment liquid, and an acid treatment liquid for washing the surface of the glass sheet G from the surface. Are arranged in this order from upstream. The sheet glass G to be acid-treated is sequentially sent to each of the above apparatuses 3 to 7 for treatment.
[0028]
Except for the acid treatment device 6, a fluid guide 8 for supporting the surface of the sheet glass G in a non-contact manner along the transport direction (pass line L) of the belt conveyor 2 is provided upright. However, as shown in FIG. 2, the fluid guide 8 is disposed on only one side of the pass line L in the draining device 5. In the other devices, that is, in the water washing device 3, the falling device 4, and the washing device 7, the fluid guides 8 are disposed on both sides of the pass line L, respectively. The acid treatment device 6 is provided with an acid treatment roller 19 that can support a plate glass in a standing state as described later, and thus does not require a fluid guide. As will be described later, the drainer 5 has a fluid guide 8 provided only on the opposite side to dispose the air knife frame 15 and the spray pipe 16 in opposition to one surface of the sheet glass. In FIG. 1, the fluid guide on the front side of the pass line L is not shown for easy understanding.
[0029]
As shown in FIG. 3, the fluid guide 8 includes a frame member 9 and a fluid ejection unit 10 attached to the frame member 9. The fluid ejection part 10 is for applying a supporting fluid pressure toward the surface of the sheet glass G. The fluid jetting section 10 can be adjusted by its adjusting mechanism 11 so as to be entirely parallel to the surface of the sheet glass G. Fluid ejection holes 10a for ejecting a fluid toward the surface of the sheet glass G are arranged at intervals in the fluid ejection portion 10.
[0030]
Since the fluid guides 8 are provided on both left and right sides of the pass line L, the fluid pressures acting on both sides of the sheet glass G are balanced, and the sheet glass G can be maintained almost vertically without contacting the structural members. In the present embodiment, water is used as the supporting fluid. By using a liquid as the supporting fluid, it is possible to effectively remove cullet particles and other dust from the glass sheet G.
[0031]
Instead of arranging a large number of fluid ejection sections 10, a porous fluid guide that allows liquid to seep out on the guide surface using a porous material may be provided. In this porous fluid guide, the surface tension of the guide liquid can be used. Therefore, even if the porous glass guide is provided only on one side of the pass line L, the sheet glass G must be supported in an upright state without contacting the structural member. Can be.
[0032]
The supporting fluid is not limited to a liquid, and may be, for example, a clean gas as needed. When a fluid guide using a gas as a supporting fluid is provided only on one side of the pass line L, the sheet glass G is slightly inclined toward the fluid guide to eject the sheet glass G with the lateral component of its own weight. It is supported by the fluid guide in a non-contact manner by the balance with the force due to the gas pressure.
[0033]
FIG. 4 is a schematic plan view of the water washing device 4. The rinsing device 4 has fountain tubes 12 on both sides of the pass line L for jetting high-pressure water onto the surface of the glass sheet G. The fluid guide 8 is arranged so as to avoid the area of the fountain tube 12. A large number of fountain holes 12a are formed in the fountain pipe 12 along the vertical direction, and high-pressure water is jetted from the fountain holes 12a to the surface of the plate glass G slightly upstream. Since the two fountain holes 12a sandwiching the pass line L are opposed to each other, the action of the fluid applied to the sheet glass G is balanced on the left and right, and the substantially vertical state of the sheet glass G is not disturbed. Dust and cullet particles that may be attached to the surface of the sheet glass G in the upstream process are washed off by the washing device 4. The plate glass G whose both surfaces have been washed with water is conveyed to the downturning device 4 downstream by the belt conveyor 2.
[0034]
The tilting device 4 will be described with reference to FIGS. 1 and 5. The tilting device 4 slightly tilts the sheet glass G from the vertical state in order to match the tilt of the downstream draining device 5 and the acid treatment device 6. As shown in FIG. 5, in the tilting device 4, the fluid guides 8 on both sides of the pass line L are integrally angled outward from the vertical state, that is, slightly away from the pass line L (about 5 ° in this embodiment). It is configured to only fall. The frame member 9 constituting the fluid guide 8 is inclined by a drive cylinder 14 about a rotation shaft 13 at the lower end.
[0035]
However, the present invention is not limited to such a configuration. For example, as shown in FIG. 6, one of the fluid guides 8 on both sides of the pass line L may be configured to be inclined by a drive cylinder (not shown) or the like. Further, the sheet glass G is pushed down in the inclined direction by a fluid jet from another water nozzle (not shown) or the like, so that the sheet glass G falls on the inclined frame member 9.
[0036]
The sheet glass G is conveyed to the downstream draining device 5 by the belt conveyor 2 in a state where the sheet glass G is inclined by about 5 ° in the falling device 4. Hereinafter, the surface on the falling side of the sheet glass G (the surface on the right side toward the downstream) is referred to as a back surface or an acid-treated surface, and the surface on the opposite side is referred to as a non-treated surface.
[0037]
The drainer 5 will be described with reference to FIGS. 1 and 7. As described above, in the draining device 5, the fluid guide 8 is disposed only on the right side of the pass line L (on the side of the acid-treated surface of the sheet glass) facing downstream, and is the same as the inclination direction of the fluid guide 8 in the tilting device 4 in advance. It is fixed at an angle of about 5 ° in the direction. On the opposite side of the pass line L from the fluid guide 8, an air supply pipe (also referred to as an air knife frame) 15 and a spray pipe 16 as a spray device are arranged in order from the upstream side facing the fluid guide 8. . On the fluid guide side of the pass line L, a draining roller 17 is disposed close to the fluid guide 8 and downstream thereof. The air knife frame 15, the spray pipe 16 and the draining roller 17 are all inclined about 5 ° in the direction of inclination of the fluid guide 8.
[0038]
Clean air is pressure-fed to the air knife frame 15 from a supply source (not shown). In the air knife frame 15, narrow slits 15a for blowing air toward the non-processed surface of the sheet glass G are formed in a vertical direction. The film-like airflow N ejected from the slit 15a is sprayed on the non-processed surface of the sheet glass G. The slits are formed intermittently at small intervals along the longitudinal direction of the air knife frame 15 (FIG. 7) or are formed continuously. In any case, a continuous film-like airflow (air knife) N is continuously blown on the glass sheet G in the vertical direction. (Slightly upstream)
The air knife frame 15 may be erected in the vertical direction. However, as shown in FIG. 1, in the present embodiment, the air knife frame 15 is slightly inclined upstream from the vertical. The direction of the slit 15a is slightly upstream from the direction perpendicular to the surface of the glass sheet G. Therefore, the air knife N can blow water on the non-processed surface of the sheet glass G slightly downward toward the upstream. As a result, the water is blown downward from the air knife frame 15 on the upstream side, and does not move to the downstream side. Dust and the like are removed from the non-processed surface of the plate glass G that has passed through the air knife N along with moisture.
[0039]
Next, water mist is sprayed from the spray pipe 16 on the surface of the sheet glass G on which the air knife processing has been performed. This is to prevent the non-treated surface from drying during the acid treatment by forming a water film on the non-treated surface.
[0040]
The draining roller 17 is rotated around a rotation axis extending in the vertical direction by a motor 18 disposed at an upper end thereof. In this embodiment, the draining roller 17 is rotated by a belt drive, but a known transmission mechanism such as a chain or a gear may be used. A water-absorbing material such as a sponge is stuck on the surface of the roller 17. The entire roller may be formed from a water-absorbing material. The belt conveyor 2 extends to a position near the upstream of the draining roller 17, but is not disposed in the area of the draining roller 17 and the acid treatment device 6 downstream thereof. This is because rotation of the draining roller 17 and the acid treatment roller 19 of the acid treatment device 6 causes a sheet glass conveying action. For this purpose, these rollers 17, 19 are rotated clockwise in plan view. However, when the sheet glass G is reciprocated in the acid treatment device 6, the acid treatment roller 19 is repeatedly rotated forward and backward.
[0041]
When the sheet glass G is transported while being in contact with the draining roller 17, the water on the back surface is absorbed and removed by the draining roller 17. Although not shown, a dewatering rod member or the like extending in the longitudinal direction of the draining roller 17 may be provided at a portion of the draining roller 17 opposite to the pass line L. By pressing the dewatering rod member against the draining roller 17, the absorbed water can be squeezed out. After the back surface of the sheet glass G is dehydrated by the draining device 5, the sheet glass G is transported to the acid treatment device 6.
[0042]
The acid treatment device 6 will be described with reference to FIGS. 1, 2 and 8. In the acid treatment device 6, no fluid guide is provided, and a plurality of acid treatment rollers 19 are arranged in parallel along the pass line L only on one side of the pass line L, that is, only on the acid treatment surface side of the sheet glass G. Have been. These acid treatment rollers 19 are chain driven by one motor 18, but other known transmission mechanisms may be used. The total acid treatment roller 19 is inclined by about 5 ° in the same direction as the inclination direction of the fluid guide 8 in the tilting device 4 (to the right toward the downstream). However, the all-acid treatment roller 19 may be set up vertically. This is because the sheet glass is attracted to the acid treatment roller by the action of the surface tension of the acid treatment liquid film formed on the roller surface.
[0043]
In the present embodiment, an apparatus for acid-treating only one surface of the sheet glass G is illustrated, so the acid treatment roller 19 is provided on only one side of the pass line L. The acid treatment rollers 19 may be arranged on both sides of the line L. Alternatively, the acid treatment liquid may be directly sprayed on the surface of the sheet glass.
[0044]
As the acid treatment roller 19 rotates, the plate glass G, which has part of its own weight deposited on the acid treatment roller 19 via the acid treatment liquid, is moved in the pass line direction. Therefore, no belt conveyor is installed in the acid treatment device 6. The lower end of the glass sheet G is supported by rotatable rollers 20. It is called a free roller 20 because it can rotate freely.
[0045]
A plurality of acid treatment liquid headers 21 for supplying an acid treatment liquid to all the acid treatment rollers 19 are arranged on the side opposite to the pass line L of the acid treatment roller row (FIG. 8). The acid treatment liquid header 21 extends in the horizontal direction at an interval vertically. A plurality of ejection holes 22 for ejecting the acid treatment liquid are formed in a portion of each acid treatment liquid header 21 facing the plate glass G. An acid treatment liquid is supplied to all the acid treatment rollers 19 from the ejection holes 22. On the other hand, the surface of the acid treatment roller 19 is formed of a porous member such as a sponge. Therefore, the acid treatment liquid supplied from the ejection holes 22 permeates the entire surface of the porous acid treatment roller, and the acid treatment liquid is in a state of oozing on this surface. An acid treatment liquid is supplied to the surface of the sheet glass G that comes into contact with the acid treatment roller 19. The header 21 to which the acid treatment liquid is supplied is selected according to the height of the sheet glass G, and the supply target of the acid treatment liquid is switched by a manual switching valve or an electromagnetic switching valve (not shown). In addition, when the acid treatment is not necessary, it can be dealt with by switching the acid treatment liquid to a fluid such as water. The sheet glass G whose back surface has been treated by the acid treatment device 6 is transported to the cleaning device 7.
[0046]
The cleaning device 7 will be described with reference to FIG. 1, FIG. 2 and FIG. The cleaning device 7 is for cleaning both sides of the glass sheet G with water, and returning the glass sheet G from a state inclined about 5 ° to a vertical state and carrying it out. Therefore, when the draining device or the acid treatment device is configured to treat the sheet glass G in a vertical state without inclining, the function of reestablishing the inclination is not necessary.
[0047]
The sheet glass G is supported in a standing state without contacting the structure because water pressure acts from both sides thereof. At least it is supported in a standing state by the surface tension of the water flowing out of the fluid guide 8. In this cleaning device 7, the fluid guides 8 on both sides of the pass line L are integrated and swing between a state inclined about 5 ° to the right (toward the other side of the drawing in the drawing) toward the downstream and a vertical state. Is configured. The cleaning device 7 inclines the frame member 9 constituting the fluid guide 8 by the drive cylinder 14 about the lower end rotating shaft 13, similarly to the above-described tilting device 4 (FIG. 5). However, the present invention is not limited to such a configuration. For example, as shown in FIG. 9, one of the fluid guides 8 on both sides of the pass line L may be configured to be inclined by a drive cylinder (not shown) or the like.
[0048]
From the fluid guides 8 on both sides of the pass line L, cleaning pure water is spouted toward the plate glass G. By the fountain, the acid treatment liquid, dust, and the like are washed away from the surface of the sheet glass G.
[0049]
On both sides of the pass line L of the cleaning device 7, water supply pipes 25 for supplying a shower for rinsing to both sides of the sheet glass G in addition to the fluid guide 8 are provided upright. The water supply pipe 25 has a plurality of fountain holes for discharging pure water toward the glass sheet G. Both water supply pipes 25 are configured to be able to swing together with both fluid guides 8 between a vertical state and an inclined state. Of course, as shown in FIG. 9, if only one of the fluid guides is inclined, the water supply pipe 25 is also constituted so that only one of them is inclined. The sheet glass G cleaned by the cleaning device 7 is transported to a downstream process by the belt conveyor 2.
[0050]
In the above-described acid treatment apparatus 6, the rotation-driven acid treatment roller 19 is used to supply the acid treatment liquid to the surface of the sheet glass G, but the present invention is not limited to such a configuration. A fixed member may be used instead of the acid treatment roller 19.
[0051]
FIG. 10 shows an acid treatment apparatus 31 using a fixed acid treatment member 32. No fluid guide is provided in this acid treatment device 31. On one side of the pass line L, a plurality of acid treatment members 32 are arranged in parallel along the pass line L. Since these acid processing members 32 do not have the function of transporting the sheet glass G, the belt conveyor 2 is provided. The total acid treatment member 32 is fixed at an angle of about 5 ° in the same direction as the inclination direction of the fluid guide 8 in the tilting device 4 (to the right toward the downstream). As in the case of the acid processing apparatus 6 using the above-described acid processing roller 19, the entire acid processing member 32 may be provided upright. This is because the surface tension of the acid treatment liquid film can be used.
[0052]
FIG. 11 shows the structure of the acid treatment member 32. The acid treatment member 32 is obtained by covering the surface of a plate-shaped core material 33 with a porous material 34. A supply hole 32c for an acid treatment liquid is formed in the core material 33 toward a surface facing the plate glass G, and the acid treatment liquid is supplied to the supply hole 32c. Thereby, the acid treatment liquid permeates the surface made of the porous material 34, and the acid treatment liquid oozes out from the surface. The part of the acid treatment member 32 facing the glass sheet G is a surface 32a substantially parallel to the glass sheet G. The upstream and downstream portions of the surface 32a are inclined surfaces 32b or substantially curved surfaces. The acid-treated surface of the sheet glass G is treated with the acid-treating liquid while being in contact with the surface 32a of each acid-treating member 32 with the conveyance by the belt conveyor 2. When the sheet glass G is in contact with the liquid film on the surface 32a of the acid treatment member 32, the plate glass G is adsorbed on the acid treatment member 32 by the surface tension of the acid treatment liquid. Therefore, the all-acid treatment member 32 may be set up vertically.
[0053]
A plurality of the acid treatment liquid supply holes 32c are formed along the longitudinal direction (vertical direction) of each acid treatment member 32 (FIG. 11A). An acid treatment liquid supply mechanism 35 is provided on the opposite side of the acid treatment member 32 from the pass line L. The acid treatment liquid is supplied to each acid treatment liquid supply hole 32c from the acid treatment liquid supply mechanism. At this time, the acid treatment liquid can be supplied to different supply holes 32c by a manual switching valve or an electromagnetic switching valve (not shown) according to the height of the glass sheet G.
[0054]
The acid treatment member 32 in the present acid treatment device 31 is slightly inclined in the direction perpendicular to the pass line L as described above, but is inclined in the upstream and downstream sides (the right and left sides in the drawing) in the transport direction. I haven't. However, as shown in FIG. 12, it is preferable to incline toward either the upstream or the downstream. Due to the inclination, the longitudinal direction of the acid treatment member 32 does not become parallel to the front edge of the sheet glass G, and they do not coincide with each other. As a result, while the sheet glass G is being conveyed, when the front end reaches the acid treatment member 32, the acid treatment liquid is prevented from flowing around to the non-treatment surface. Further, since the acid treatment liquid from the acid treatment member 32 flows vertically and does not flow along the acid treatment member 32, the amount of the acid treatment liquid on the surface of the acid treatment member 32 is made uniform.
[0055]
FIGS. 13 to 15 show another acid treatment facility 36. Since the acid treatment equipment 36 treats the sheet glass G in a vertical state, the acid treatment equipment 36 is not provided with a falling device for carrying in and a rectifying device for carrying out. That is, there is no mechanism for inclining the pass line L in a direction directly below, and the mechanism is not inclined. For the acid treatment, the above-mentioned fixed type acid treatment member 32 is employed, and the plate glass G is adsorbed on the surface of the acid treatment member 32 by the surface tension of the liquid and maintains a vertical state. The belt conveyor 2 is installed from the entrance to the exit of the equipment 36 for conveying the glass sheet. The acid treatment members 32 are also arranged from the entrance to the exit of the equipment 36.
[0056]
In the present acid treatment facility 36, the two acid treatment members 321 at the upstream end and the two acid treatment members 322 at the downstream end of the entire acid treatment members 32 are not water-washed with an acid treatment liquid but for washing plate glass with water. Is supplied. Therefore, these acid-treated members are called washing members. The treated surface of the sheet glass G is washed by these washing members 321 and 322. An acid treatment liquid is supplied to the middle seven acid treatment members 32. However, it is not limited to these numbers. In short, the acid-treated surface of the sheet glass G may be washed with the upstream-side washing member and the downstream-side washing member.
[0057]
The range of the upstream washing member 321 is referred to as a carry-in portion 37, the central acid treatment member 32 is referred to as an acid treatment portion 38, and the downstream end of the washing member 322 is referred to as a carry-out portion 39. In the carry-in section 37, the spray pipe 16 is provided on the opposite side of the washing member 321 with the pass line L interposed therebetween. Since the spray pipe 16 has the same configuration as the spray pipe 16 in the above-described draining device 5, the description thereof is omitted. In the carry-out section 39, water supply pipes 25 are provided on both sides of the pass line L. The water supply pipe 25 blows a water flow onto the sheet glass G from a gap between the washing members 322. The water supply pipe 25 has the same configuration as the water supply pipe 25 in the cleaning device 7 described above, and a description thereof will be omitted.
[0058]
As shown in FIG. 14, mechanisms for supplying water or an acid treatment liquid to the upstream washing member 321, the acid treatment member 32, and the downstream washing member 322 are independent of each other. A water supply device 40 for supplying water to the washing member 321 and the spray pipe 16 is provided in the carry-in portion 37, and a water supply device 41 for supplying water to the wash member 322 is provided in the carry-out portion 39. A water supply mechanism (not shown) is separately provided in the water supply pipe 25 of the carry-out section 39. An acid treatment liquid supply mechanism 42 is connected to the acid treatment member 32 of the acid treatment section 38.
[0059]
FIG. 15 shows an acid treatment liquid supply device 42. The acid treatment liquid supply unit 42 includes an acid treatment liquid supply pipe 43, a connection fitting 44 connected to the acid treatment liquid supply hole 32c of the acid treatment member 32, and a hose connecting the acid treatment liquid supply pipe 43 and the connection fitting 44. 45 and a stop valve 46 attached to the hose 45. In this embodiment, the manual stop valve 46 is used to select the acid treatment liquid supply hole 32c to which the acid treatment liquid is to be supplied, but an electromagnetic switching valve may be used. Each of the water supply devices 40 and 41 has the same configuration as the acid treatment liquid supply device 42, and a description thereof will be omitted.
[0060]
The acid treatment liquid supply device employed in the above-described acid treatment device 6 has the same configuration as the acid treatment liquid supply device 42.
[0061]
Also in the present acid processing equipment 36, it is preferable to incline the acid processing member 32 toward either the upstream or the downstream. Further, an acid treatment roller may be used instead of the acid treatment member 32.
[0062]
FIG. 16 shows another acid processing member 51. The acid processing member 51 has a pair of end pulleys 52a and 52b and an endless belt (hereinafter simply referred to as a belt) 53 wrapped around both end pulleys 52a and 52b. The belt 53 is made of a porous material such as a sponge. One end pulley 52a is a drive pulley, and is rotated around its own axis by the motor 18. Thereby, the belt 53 rotates. Instead of forming the entire belt from a porous material, a material in which a porous material is adhered to the outer surface of an ordinary known belt material may be used.
[0063]
An acid treatment liquid header 21 for supplying an acid treatment liquid to the belt 53 is provided on the opposite side of the pass line L of the acid treatment member 51. Since the acid treatment liquid header 21 has the same structure as that shown in FIG. 8, its description is omitted. An acid treatment liquid is supplied to the belt 53 on the opposite side of the pass line, and the acid treatment liquid is supplied to the sheet glass on the pass line side. That is, the sheet glass G is conveyed by the rotation of the belt 53 while being in contact with the surface 53 a of the belt 53. Therefore, no belt conveyor is required. The span of the belt 53 and the number of the acid processing members 51 installed in one acid processing apparatus can be arbitrarily set according to the size of the sheet glass and the processing time.
[0064]
Instead of directly supplying the acid treatment liquid from the acid treatment liquid header 21 to the belt 53, a supply hole for the acid treatment liquid may be formed in one end pulley, and the acid treatment liquid may be supplied to this supply hole. Alternatively, the entire belt may be formed from a porous material, and the acid treatment liquid may be supplied from the back surface of the belt (the surface opposite to the surface facing the sheet glass).
[0065]
With the above configuration, the number of acid-treated members can be reduced, so that the structure is simplified, more uniform treatment is possible, and the maintenance of the device is facilitated.
[0066]
【The invention's effect】
ADVANTAGE OF THE INVENTION According to this invention, it can prevent the damage, such as a crack, with respect to the sheet material containing the sheet glass which was enlarged and thinned, and can perform the acid treatment which enabled the further improvement of the quality of a sheet material.
[Brief description of the drawings]
FIG. 1 is a front view schematically showing an embodiment of an acid treatment facility of the present invention.
FIG. 2 is a schematic plan view of the acid treatment equipment of FIG.
FIG. 3 is a cross-sectional view showing a part of a fluid guide in the acid processing equipment of FIG.
FIG. 4 is a schematic plan view showing an example of a water washing device in the acid treatment equipment of FIG.
FIG. 5 is a side view showing an example of a defeat device in the acid treatment equipment of FIG.
6 is a schematic side view showing another example of the tilting device in the acid treatment equipment of FIG. 1; FIG. 6 (a) shows a state before tilting; FIG. 6 (b) shows a state after tilting; Is shown.
FIG. 7 is a schematic side view showing an example of a draining device in the acid treatment equipment of FIG.
FIG. 8 is a schematic side view showing an embodiment of an acid treatment apparatus in the acid treatment equipment of FIG.
9 is a schematic side view showing an example of a cleaning device in the acid treatment equipment of FIG. 1, wherein FIG. 9 (a) shows an inclined state, and FIG. 9 (b) shows an upright state.
10 (a) is a schematic front view showing another embodiment of the acid treatment apparatus in the acid treatment equipment of FIG. 1, and FIG. 10 (b) is a schematic side view thereof.
11 (a) is a front view showing an example of an acid processing member in the acid processing apparatus of FIG. 1, and FIG. 11 (b) is a sectional view taken along line XI-XI of FIG. 11 (a).
12 (a) is a front view showing an example of the arrangement of the acid treatment members in the acid treatment apparatus of FIG. 10, and FIG. 12 (b) is an arrangement of the acid treatment members in the acid treatment apparatus of FIG. It is a front view showing other examples.
FIG. 13 is a front view showing another embodiment of the acid treatment equipment of the present invention.
FIG. 14 is a plan view of the acid treatment equipment of FIG.
FIG. 15 is a side view of the acid treatment equipment of FIG. 13 taken along line XV-XV.
FIG. 16 is a perspective view showing another example of the acid processing member in the acid processing apparatus of FIG. 1;
[Explanation of symbols]
1 .... Acid treatment equipment
2 .... Belt conveyor
3. ・ ・ ・ Washing device
4. Defeating device
5. Drainer
6 ... Acid treatment equipment
7 Cleaning equipment
8. Fluid guide
9 Frame members
10 Fluid ejection section
11 Adjustment mechanism
12 ··· Fountain pipe
13. Rotary axis
14 ... Driving cylinder
15 ... Air knife frame
16 ··· Spray tube
17 ... Drainer roller
18. Motor
19 ... Acid treatment roller
20 ... Free roller
21 .. Acid treatment liquid header
22 ··· Vent hole
25 ... water pipe
31 ... Acid treatment equipment
32 ... Acid treatment member
33 ... core material
34 ··· Porous material
35 ... Acid treatment liquid supply mechanism
36 Acid treatment equipment
37 ··· Loading section
38 ... Acid treatment section
39 ···· Unloading section
40, 41 ··· Water supply device
42 ... Acid treatment liquid supply device
43 ··· Acid treatment liquid supply pipe
44 Connection fitting
45 ... Hose
46 ··· Stop valve
51 ···· Acid treated member
52a, 52b ····· End pulley
53 ··· Belt
321, 322 ··· Rinsing member
G: Flat glass
L ··· (Plate glass) pass line

Claims (13)

A transport device that supports the lower end of the plate material in an upright state and transports the horizontal in the horizontal direction,
An acid treatment member that can include an acid treatment liquid is provided on the surface of the plate member so as to face at least one surface of the plate material,
An acid treatment liquid supply device for supplying an acid treatment liquid to the surface of the acid treatment member,
An acid treatment apparatus for a sheet material, wherein the sheet material is conveyed by the transfer device while being in contact with the acid treatment liquid on the surface of the acid treatment member. A support device for supporting the lower end of the plate material in an upright state,
An acid treatment roller, which is provided upright so as to face at least one surface of the plate material, and may include an acid treatment liquid on its surface,
An acid treatment liquid supply device for supplying an acid treatment liquid to a surface portion of the acid treatment roller,
A rotation driving device for rotating the acid treatment roller around its axis, and configured to convey the plate material while being in contact with the acid treatment liquid on the surface of the acid treatment roller by the rotation of the acid treatment roller. Acid processing equipment for plate materials. A support device for supporting the lower end of the plate material in an upright state,
An endless belt for acid treatment, which is disposed so as to face at least one surface of the plate material and may include an acid treatment liquid on its surface,
An acid treatment liquid supply device for supplying an acid treatment liquid to a surface portion of the endless belt,
A rotation drive device for rotating the endless belt,
An acid treatment device for a plate material configured to convey the plate material while being in contact with an acid treatment liquid on the surface of the endless belt by rotating the endless belt. 4. The apparatus according to claim 2, wherein said supporting device comprises a plurality of freely rotatable free rollers arranged in parallel. 2. The apparatus according to claim 1, wherein said acid-treating member comprises a plurality of vertically long acid-treating members arranged in parallel and spaced apart from each other. The plate acid treatment apparatus according to claim 5, wherein said acid treatment member element is erected from a vertical direction to an upstream side or a downstream side in a sheet conveying direction. The acid treatment liquid supply device has a plurality of acid treatment liquid supply ports at intervals in the vertical direction with respect to the surface portion, and supplies the acid treatment liquid according to the size of the plate material to be acid treated. The acid treatment apparatus for plate materials according to any one of claims 1 to 3, wherein an acid treatment liquid supply port to be supplied is configured to be switched. The acid treatment liquid supply device has an acid treatment liquid supply port that can move in the vertical direction with respect to the surface portion, and the acid treatment liquid supply port is moved up and down according to the size of the plate material to be acid treated. The acid treatment apparatus for a plate material according to any one of claims 1 to 3, wherein the acid treatment apparatus is configured to be configured to perform the following. A transport device that supports and transports the lower end of the plate material in an upright state,
A fluid guide for supporting the plate material in a non-contact manner in a standing state by applying a fluid pressure to the surface of the plate material;
The acid treatment device according to any one of claims 1 to 8, which is inserted and arranged in the middle of a transport path of the transport device,
A plate material acid treatment facility comprising: a spray device that sprays water onto a surface of the plate material, the spray device being disposed upstream of the acid treatment device in the transport path. A transport device that supports and transports the lower end of the plate material in an upright state,
A fluid guide for supporting the plate material in a non-contact manner in a standing state by applying a fluid pressure to the surface of the plate material;
The acid treatment device according to any one of claims 1 to 8, which is inserted and arranged in the middle of a transport path of the transport device,
A plate material acid treatment facility comprising: a cleaning device disposed downstream of the acid treatment device on the transport path and spraying water for removing an acid treatment liquid onto a surface of the plate material. 10. The plate material acid treatment equipment according to claim 9, further comprising a cleaning device disposed on a downstream side of the acid treatment device in the transport path and spraying water for removing an acid treatment liquid onto a surface of the plate material. The acid treatment equipment for a plate material according to claim 9, further comprising a drainage member for injecting a film-like airflow toward a non-treatment surface of the plate material on an upstream side of the spray device in the transport path. 11. The plate material acid treatment equipment according to claim 10, wherein the cleaning device includes a fountain nozzle that sprays water toward a surface of the acid-treated plate material.

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