TW202019796A - Glass plate manufacturing device and glass plate manufacturing method - Google Patents

Abstract

A glass plate manufacturing device comprising a transporting device 14 to transport a glass plate G, wherein the transporting device 14 comprises a shaft 32 for transportation, a bearing 33 to support the shaft 32, an accommodation chamber 34 to accommodate the bearing 33, a supply channel 36 to supply a lubrication liquid 35 to the accommodation chamber 34, and a discharge channel 37 to discharge the lubrication liquid 35 from the accommodation chamber 34. The transporting device 14 with the aforementioned configuration is configured to be able to discharge, from the accommodation chamber 34, the lubrication liquid 35 and a gas 38 in the accommodation chamber 34 through the discharge channel 37.

Description

Glass plate manufacturing device and glass plate manufacturing method

The present invention relates to a glass plate manufacturing apparatus and a glass plate manufacturing method, and particularly relates to a technique for preventing dust and other dust generated when a glass plate is transported from adhering to the surface of the glass plate.

For example, when manufacturing a glass plate typified by a glass substrate for a liquid crystal display, after processing the glass plate cut out of the original glass plate (formed original plate), the glass plate is washed, and the glass plate is cleaned by The blowing of air removes the cleaning liquid adhering to the surface of the glass plate during cleaning (deliquoring), and the glass plate is dried (for example, refer to Patent Document 1). In addition, when the above-mentioned processing is performed on the glass sheet, the glass sheet is conveyed in the drying chamber by a conveying device such as a roller conveyor, for example.

In addition, such a conveying device usually has a structure in which a conveying shaft having rollers is supported by bearings. Therefore, as the glass plate is transported, dusting from the bearing becomes a problem. Therefore, Patent Document 2 proposes the following: immersing a part of the bearing in a liquid for the purpose of suppressing dust and catching the dust, and installing a cover around the bearing for the purpose of preventing the dust from scattering to the glass plate Bearing cover. [Prior Art Literature] [Patent Literature]

[Patent Document 1] Japanese Patent Laid-Open No. 2014-38914 [Patent Document 2] Japanese Patent Laid-Open No. 2002-347928

[Problems to be solved by the invention] However, even if the cover is installed around the bearing as in Patent Document 2, there is an inevitable gap between the shaft supported by the bearing and the cover, so there is a concern that dust may leak out of the cover. Therefore, it is difficult to prevent dust from adhering to the surface of the glass plate being transported.

In view of the above, it is a technical problem to be solved to prevent the dust generated during the conveyance of the glass plate from adhering to the surface of the glass plate and provide a glass plate with excellent surface quality. [Means to solve the problem]

The solution to the above problem is achieved by the glass plate manufacturing apparatus of the present invention. That is, the manufacturing apparatus is a glass sheet manufacturing apparatus including a transport apparatus that transports glass sheets, and the manufacturing apparatus is characterized in that the transport apparatus includes: a shaft for transport; a bearing, a support shaft; a storage chamber, a storage bearing; a supply path , Supplying lubricating fluid to the storage chamber; and a discharge path, the lubricating fluid is discharged from the storage chamber, and the lubricating fluid and the gas in the storage chamber can be discharged together from the storage chamber through the discharge path.

In this manner, the glass plate manufacturing apparatus of the present invention is provided with a discharge path through which the lubricant liquid is discharged from the storage chamber of the bearing, and the lubricant liquid and the gas in the storage chamber can be discharged from the storage chamber together through the discharge path. According to this configuration, not only the dust caught by the lubricating liquid but also the dust suspended in the storage chamber (not caught by the lubricating liquid) can be excluded from the housing. This can effectively prevent dust particles suspended in the storage room from leaking out of the storage room and adhering to the glass plate being transported. In addition, by generating the flow of the gas toward the discharge path, the gas in the storage chamber can be actively brought into contact with the lubricating liquid, and therefore, the effect of the lubricating liquid in catching dusted objects can also be improved. Of course, by providing a supply path and a discharge path of the lubricating fluid in the storage chamber, the storage chamber is always in a state where clean lubricating fluid is present, so a stable dust-trapping effect can be obtained.

In addition, it is also considered to provide an exhaust path for exhausting the gas in the storage chamber separately from the exhaust path for lubricating fluid discharge. However, in this case, the same number of exhaust paths as the exhaust path is required again, and the number of piping increases Large (multiplied), which complicates the piping system. In addition, dusty materials tend to adhere and accumulate on the piping that constitutes the exhaust path for exhausting gas. On the other hand, in the apparatus for manufacturing a glass plate of the present invention, the exhaust path and the exhaust path are shared, so compared with the case where the exhaust path and the exhaust path are provided separately, it can be significantly Reduce the number of pipes. In addition, dust particles adhering to the discharge path flow together with the discharged lubricant and are discharged together with the lubricant. Therefore, it is possible to avoid the complication of the piping system or the accumulation of dust in the discharge path, while preventing the dust from adhering to the glass plate.

In addition, regarding the apparatus for manufacturing a glass plate of the present invention, a suction device for sucking gas may be disposed on the outlet side of the discharge path. In addition, in the above case, a gas-liquid separation tank that separates the lubricating liquid and the gas by using the difference in the specific gravity of the lubricating liquid and the gas may be disposed between the discharge path and the suction device.

In this way, by providing a suction device on the outlet side of the discharge path and a gas-liquid separation tank between the discharge path and the suction device, the lubricating liquid and the gas in the storage chamber can be efficiently discharged with a simple configuration. In addition, by discharging the lubricating fluid and the gas in a state of being separated from each other, the lubricating fluid can be circulated and reused, so the amount of lubricating fluid used can be reduced and it is economical.

In addition, in the apparatus for manufacturing a glass plate of the present invention, a plurality of storage chambers may be arranged, and the gas-liquid separation tanks are respectively connected to the plurality of storage chambers via discharge paths.

By adopting such a configuration in which a plurality of storage chambers are connected to one gas-liquid separation tank, compared with the case where one gas-liquid separation tank is provided for one storage chamber, the number of discharge paths connected to the gas-liquid separation tank can be greatly reduced. The number of pipes. Therefore, it is possible to further simplify the piping system.

In addition, in the apparatus for manufacturing a glass plate of the present invention, the discharge path can be connected to the bottom surface of the storage chamber.

By connecting the discharge path to the bottom surface of the storage chamber in this way, the lubricating fluid smoothly flows down due to its own weight and is discharged from the storage chamber. Therefore, it is possible to easily discharge the lubricating liquid while reducing the load on the suction device or the like.

In addition, in the glass plate manufacturing apparatus of the present invention, the cross-sectional area of the discharge path may be larger than the cross-sectional area of the supply path.

By relatively reducing the cross-sectional area of the supply path and relatively increasing the cross-sectional area of the discharge path, the circulation of the lubricating liquid in the storage chamber can be improved, and the retention of the lubricating liquid in the storage chamber can be avoided. Therefore, it is possible to effectively obtain the dust-trapping effect of the lubricating liquid, and it is also possible to prevent the dusting substance from adhering to and accumulating on the inner surface of the piping as much as possible. Of course, the larger the cross-sectional area of the discharge path, the easier it is to ensure the discharge path of both the lubricating fluid and the gas, so it is suitable in terms of smoothly removing dust.

As described above, the apparatus for manufacturing a glass plate of the present invention can prevent the dust generated from the bearing of the conveying shaft supporting the glass plate from adhering to the surface of the glass plate. Therefore, for example, the conveying device is suitably arranged for drying with an air knife The situation of the room.

In addition, the solution to the above problem is also achieved by the method of manufacturing a glass plate of the present invention. That is, this manufacturing method is a manufacturing method of a glass plate including a transport step of transporting a glass plate, and the manufacturing method is characterized in that the glass plate is transported using the transport device included in the manufacturing apparatus in the transport step.

In this way, the method for manufacturing a glass sheet of the present invention uses the conveying device to convey the glass sheet in the conveying step. Therefore, it is possible to avoid the complication of the piping system or the accumulation of dust in the discharge path, while preventing the dust from adhering to the glass plate. [Effect of invention]

As described above, according to the present invention, it is possible to prevent the dust generated during the conveyance of the glass sheet from adhering to the surface of the glass sheet, and to provide a glass sheet with excellent surface quality.

Hereinafter, the first embodiment of the present invention will be described.

The manufacturing method of the glass plate of this embodiment includes: a processing step, for example, performing predetermined processing such as cutting and grinding on the glass plate; a cleaning step, cleaning the glass plate that has been subjected to the predetermined processing; and a drying step, attaching The cleaning liquid on the cleaned glass plate is removed to dry the glass plate, and for the purpose of carrying the glass plate in and out in these series of working steps, it further includes a conveying step of conveying the glass plate. In addition, in the above case, the glass plate manufacturing apparatus of this embodiment includes a glass plate processing apparatus, a washing and drying apparatus, and a conveying apparatus. In the following, first, the items related to the washing step and the drying step will be described, and then the items related to the conveying step will be described.

FIG. 1 is a side view showing the overall configuration of a washing and drying device 10 used in a washing step and a drying step in the glass plate manufacturing apparatus of the present invention. As shown in FIG. 1, the washing and drying apparatus 10 includes a washing processing chamber 11 and a drying processing chamber 12, and the conveyance path 13 of the glass plate G is provided so as to cross the washing processing chamber 11 and the drying processing chamber 12. In this case, the conveyance apparatus 14 which conveys the glass plate G along the conveyance path 13 is arrange|positioned in the washing process chamber 11 and the drying process chamber 12.

In this embodiment, the cleaning processing chamber 11 has a first cleaning chamber 15 and a second cleaning chamber 16. Among them, the first cleaning chamber 15 has a cleaning roller 17 that wipes the surfaces Ga and Ga of the glass plate G to remove dirt such as foreign substances adhering to the surfaces Ga and Ga. In this embodiment, a pair of upper and lower cleaning rollers 17 and 17 are arranged at positions facing each other across the conveyance path 13 of the glass plate G.

In addition, a cleaning liquid supply device 18 is arranged in the first cleaning chamber 15. In this case, the direction of the supply port (not shown) of the cleaning liquid supply device 18 is set so that the cleaning liquid 19 is supplied to the entire area of the surface Ga and Ga of the glass plate G passing through the transport path 13. Or width dimension, supply flow rate, etc. In addition, the “width direction” in the present embodiment refers to a direction that matches the width direction of the glass sheet G transported on the transport path 13.

The second cleaning chamber 16 is located on the downstream side of the conveying path 13 than the first cleaning chamber 15, and has a glass that supplies the rinse liquid (washing liquid) 20 to the second cleaning chamber 16 that has been carried from the first cleaning chamber 15. The eluent supply device 21 on the surface Ga of the plate G and Ga. In this case, the supply port of the eluent supply device 21 is also set so that the eluent 20 is supplied to the entire area of the surface Ga and Ga of the glass plate G passing through the transport path 13 (not shown) ) Direction or width dimension, supply flow rate, etc.

The drying processing chamber 12 has a deliquoring chamber 22 and a first drying chamber 23 located on the downstream side of the conveying path 13 than the deliquoring chamber 22. In this embodiment, the drying processing chamber 12 is further downstream of the conveying path 13 than the first drying chamber 23 and further has a second drying chamber 24. A partition 25 is provided between the deliquoring chamber 22 and the first drying chamber 23. Thereby, the air etc. of the deliquoring chamber 22 is restricted from flowing into the first drying chamber 23.

The first drying chamber 23 is provided with a gas blowing device 27 for blowing a predetermined gas 26 (for example, clean dry air, etc.) toward the surfaces Ga and Ga of the glass sheet G carried into the first drying chamber 23. In this embodiment, the gas blowing device 27 is a pair of upper and lower air knives 28 and 28, and the conveyance path 13 of the glass plate G is located between the pair of air knives 28 and 28. Here, the width direction dimension of the supply port 28a of each air knife 28 is set to a size that can blow the gas 26 to the entire area of the surface Ga, Ga of the glass plate G passing between the pair of air knives 28, 28. In addition, the angle of the supply port 28 a of each air knife 28 is set to a size that can blow the gas 26 onto the surface Ga of the glass plate G from the first drying chamber 23 side toward the deliquoring chamber 22 side.

A partition 29 is provided between the first drying chamber 23 and the second drying chamber 24. As a result, the internal space of the first drying chamber 23 and the internal space of the second drying chamber 24 are divided, so that the air or the like of the first drying chamber 23 is restricted from flowing into the second drying chamber 24. Therefore, the cleanliness of the second drying chamber 24 can be made higher than that of the first drying chamber 23.

A gas blowing device 30 for blowing a predetermined gas 26 toward the surfaces Ga and Ga of the glass sheet G carried into the second drying chamber 24 is arranged in the second drying chamber 24. In this embodiment, the gas blowing device 30 is a pair of upper and lower air knives 31 and 31, and the conveyance path 13 of the glass plate G is located between the pair of air knives 31 and 31. Here, the width direction dimension of the supply port 31a of each air knife 31 is set to a size that can blow the gas 26 over the entire area of the surface Ga, Ga of the glass plate G passing between the pair of air knives 31, 31. In addition, the angle of the supply port 31a of each air knife 31 is set to a size that can blow the gas 26 onto the surface Ga of the glass plate G from the second drying chamber 24 side toward the first drying chamber 23 side.

FIG. 2 is a longitudinal cross-sectional view of the transport device 14 viewed from the transport direction (the direction of arrow A in FIG. 1 ). As shown in FIG. 2, the transport device 14 includes: a shaft 32 for transporting the glass plate G; a bearing 33 that supports the shaft 32; a storage chamber 34 that stores the bearing 33; a supply path 36 that supplies a lubricant 35 to the storage chamber 34 ; And the discharge path 37, the lubricant 35 is discharged from the storage chamber 34. In this embodiment, the conveying device 14 further includes: a suction device 39 for sucking the gas 38 in the storage chamber 34; a gas-liquid separation tank 40 as a gas-liquid separation device for separating the lubricating liquid 35 from the gas 38; Tank 41; pump 42, for pressure delivery; and filter 43. The storage chamber 34 is arranged inside the drying processing chamber 12, and the suction device 39, the gas-liquid separation tank 40, the tank 41, the pump 42, and the filter 43 are arranged outside the drying processing chamber 12.

The shaft 32 directly or indirectly supports the glass plate G. In this embodiment, a roller 44 is attached to the outer periphery of the shaft 32, and the glass plate G is supported by the roller 44. In addition, the plurality of shafts 32 forming the above-described configuration are arranged along the conveyance path 13 of the glass plate G (see FIG. 1 ). A driving device such as a motor (not shown) is connected to a part of the plurality of shafts 32. By driving the part of the shaft 32 to rotate and drive by the driving device, the glass plate G supported by the roller 44 is given a direction along the conveying path 13 Transport force. In addition, in FIG. 1, illustration of components of the conveying device 14 other than the shaft 32 is omitted. In addition, in FIG. 2, illustration of components other than the transport device 14 (that is, components of the cleaning processing chamber 11 and the drying processing chamber 12) is omitted.

The bearing 33 is, for example, a liquid lubrication type bearing, and is arranged inside the storage chamber 34. In this embodiment, the bearing 33 is fixed to the housing 45 constituting the storage chamber 34 via the mounting base 46.

The supply path 36 serves to supply the lubricating fluid 35 to the internal space of the storage chamber 34 and is connected to the storage chamber 34. In this embodiment, as shown in FIG. 2, the supply path 36 is connected to the bottom surface 34 a of the storage chamber 34.

A pump 42 is connected to the upstream side of the supply path 36 via a filter 43. On the upstream side of the pump 42, there is a tank 41 in a state where the lubricating fluid 35 is stored, and the pump 42 is connected to the tank 41. Thereby, the lubricating fluid 35 in the tank 41 is pumped by the pump 42 toward the storage chamber 34, and the lubricated fluid 35 that has been sent through the supply path 36 flows into the storage chamber 34 (see FIG. 3 described later).

A discharge path 37 is connected to the storage chamber 34. The conveying device 14 including the discharge path 37 is configured to be able to discharge the lubricating liquid 35 in the storage chamber 34 from the storage chamber 34 through the discharge path 37 and to discharge the gas 38 in the storage chamber 34 from the storage chamber 34 through the discharge path 37.

Here, the discharge path 37 includes, for example, a tubular body having a perfect circular cross section, and is connected to the bottom surface 34 a of the storage chamber 34. Here, the cross-sectional area S1 of the discharge path 37 is set larger than the cross-sectional area S2 of the supply path 36, for example.

A suction device 39 capable of sucking the gas 38 is arranged on the outlet side (downstream side) of the discharge path 37. In addition, a gas-liquid separation tank 40 as a gas-liquid separation device that separates the lubricating liquid 35 and the gas 38 is arranged between the suction device 39 and the discharge path 37. In the present embodiment, the discharge passage 37 is connected to the top surface 40 a of the gas-liquid separation tank 40, and the inlet side (upstream side) of the exhaust passage 47 is connected to the side surface 40 b of the gas-liquid separation tank 40. The outlet side (downstream side) of the exhaust path 47 is connected to the suction device 39. In addition, a liquid discharge path 48 is connected to the bottom surface 40 c of the gas-liquid separation tank 40, and a tank 41 opened at the upper portion is disposed below the liquid discharge path 48. By this, the lubricating liquid 35 that reaches the gas-liquid separation tank 40 through the discharge path 37 is held in the lower space 40d of the gas-liquid separation tank 40, and the lubricating liquid 35 in the held state can flow back through the liquid discharge path 48 to罐41. In addition, the gas 38 reaching the gas-liquid separation tank 40 through the discharge path 37 is sucked by the suction device 39 and can be discharged from the gas-liquid separation tank 40 through the exhaust path 47.

In this embodiment, as shown in FIG. 4, a plurality of storage chambers 34 are arranged along the conveyance path 13, and one gas-liquid separation tank 40 is connected to the plurality of storage chambers 34 via discharge paths 37, respectively. One suction device 39 is connected to one gas-liquid separation tank 40 via an exhaust path 47. In addition, although not shown in the figure, when the bearings 33 are arranged on both sides of the shaft 32 in the longitudinal direction, not only the storage chamber 34 for storing the bearing 33 on one side in the longitudinal direction but also the other in the longitudinal direction The storage chamber of the bearing on one side may also form the aforementioned connection form. That is, one gas-liquid separation tank can be connected to the plurality of storage chambers of the bearings on the other side of the storage shaft 32 in the longitudinal direction via the discharge path, respectively. In addition, only one liquid discharge path 48 may be provided in the gas-liquid separation tank 40, or a plurality of them.

Next, an example of the transfer procedure using the transfer device 14 of the above-mentioned configuration will be described.

In this transfer step, the glass plate G that has been subjected to predetermined processing (at least one of end surface processing, surface treatment, etc.) in the processing step is transported by the transport device 14 along the transport path 13. In the example shown in FIG. 1, first, the glass plate G is carried into the first washing chamber 15 of the washing and drying device 10 located on the upstream side of the conveying path 13. Furthermore, while being transported downstream in the first cleaning chamber 15, the cleaning liquid 19 is supplied from the cleaning liquid supply devices 18, 18 to the surfaces Ga, Ga of the glass plate G, and the cleaning rollers 17, 17 wipe the glass plate G. Surface Ga, Ga. By this, foreign matters such as fine particles adhering to the surface Ga and Ga are wiped off. Then, the glass plate G is carried into the second cleaning chamber 16 by the conveying device 14. While being transported downstream in the second cleaning chamber 16, the eluent 20 is supplied from the eluent supply device 21 to the surfaces Ga and Ga of the glass plate G, and the surfaces Ga and Ga of the glass plate G are washed away. Cleaning fluid 19 and foreign objects. Then, the glass plate G is carried out of the second cleaning chamber 16 by the conveying device 14.

After the cleaning step, the glass plate G is carried into the deliquoring chamber 22 of the drying processing chamber 12 by the conveying device 14. Then, immediately before being transferred from the deliquoring chamber 22 into the first drying chamber 23, the gas 26 is blown toward the surfaces Ga and Ga of the glass plate G from the pair of gas knives 28 and 28 as the gas blowing device 27. By this, the rinsing liquid 20 (sometimes also a small amount of cleaning liquid 19) remaining on the surfaces Ga and Ga of the glass plate G is blown away and the foreign matter including fine particles.

Then, the glass plate G thus deliquored is carried out of the first drying chamber 23 by the conveying device 14 and carried into the second drying chamber 24. Immediately before being carried into the second drying chamber 24, the gas 26 is blown toward the surfaces Ga and Ga of the glass plate G from the pair of gas knives 31 and 31 as the gas blowing device 30. By this, the foreign substances including fine particles and the rinse liquid 20 remaining on the surface Ga and Ga of the glass plate G are blown away. By removing the rinsing liquid 20 and the like and foreign substances including fine particles as described above, the surfaces Ga and Ga of the glass plate G are washed and dried. The glass plate G subjected to the cleaning and drying process is carried out of the second drying chamber 24 by the conveying device 14.

When the glass plate G is transported by the transport device 14 as described above, the shaft 32 is rotatably supported by the bearing 33. In addition, while the shaft 32 is rotatably supported by the bearing 33, the bearing 33 is in a liquid lubrication state. In detail, when the shaft 32 rotates, the pump 42 shown in FIG. 3 is driven, and the lubricating fluid 35 stored in the tank 41 is pressure-sent toward the storage chamber 34 side. The lubricating fluid 35 that has been pressure-fed flows into the storage chamber 34 through the supply path 36 and comes into contact with a part of the bearing 33 (here, the bottom of the bearing 33 is impregnated with the lubricating fluid 35). By this, the bearing 33 becomes a liquid lubricated state. In addition, the lubricating fluid 35 flowing into the storage chamber 34 flows on the bottom surface 34a of the storage chamber 34 and is discharged from the storage chamber 34 through the discharge path 37 connected to the bottom surface 34a. At this time, the amount of lubricating fluid 35 flowing into the storage chamber 34 per unit time is adjusted, and the amount of lubricating fluid 35 flowing out of the storage chamber 34 per unit time is adjusted, whereby the The circulation form is set to the prescribed form. For example, by adjusting the inflow and outflow amounts of the lubricating liquid 35 as described above, the liquid level height h (see FIG. 3) of the lubricating liquid 35 accumulated in the bottom of the storage chamber 34 is maintained at a predetermined size.

In addition, at this time, as shown in FIG. 3, the lubricating fluid 35 in the form of a layer on the bottom surface 34 a is discharged through the discharge path 37, and the suction device 39 disposed on the downstream side of the discharge path 37 is driven to react with the exhaust gas. The space in which the passage 47 communicates is sucked, whereby the gas 38 in the storage chamber 34 is discharged through the discharge passage 37. In this case, the lubricating fluid 35 passes through a part of the discharge path 37 (for example, the peripheral portion 37a shown in FIG. 3), and the gas 38 passes through the remaining part of the discharge path 37 (for example, the central portion 37b shown in FIG. 3). . The flow form of the lubricating fluid 35 and the discharge form of the lubricating fluid 35 and the gas 38 can be adjusted by, for example, the discharge amount of the pump 42, the cross-sectional area S2 of the supply path 36, the cross-sectional area S1 of the discharge path 37, and the suction device 39 The amount of suction, the volume of the storage chamber 34, the volume of the gas-liquid separation tank 40, etc. are achieved.

Both the lubricating liquid 35 and the gas 38 discharged from the storage chamber 34 through the discharge path 37 are introduced into the gas-liquid separation tank 40. Here, since there is a large specific gravity difference between the lubricating liquid 35 and the gas 38, the lubricating liquid 35 introduced into the gas-liquid separation tank 40 falls due to its own weight and is held in the lower space 40d of the gas-liquid separation tank 40 in. On the other hand, the gas 38 introduced into the gas-liquid separation tank 40 is held in the upper space 40e of the gas-liquid separation tank 40. The lubricating fluid 35 held in the lower space 40d is discharged from the gas-liquid separation tank 40 through the drain passage 48 connected to the bottom surface 40c of the gas-liquid separation tank 40, and the gas 38 held in the upper space 40e is connected to the gas The exhaust path 47 of the side surface 40 b of the liquid separation tank 40 is discharged from the gas-liquid separation tank 40.

Among them, the lubricating fluid 35 discharged through the discharge passage 48 drops into the tank 41. The lubricating fluid 35 dropped into the tank 41 is pressure-fed by the pump 42 and is again supplied into the storage chamber 34 through the supply path 36. In addition, by using the filter 43 disposed between the pump 42 and the supply path 36 to capture the dust in the lubricating liquid 35, the dust flowing into the storage chamber 34 does not substantially contain dust or dust. The clean lubricating fluid 35 having a lower content rate than when passing through the discharge path 37. Thereby, the lubricating fluid 35 is recycled.

In this manner, in the apparatus and method for manufacturing a glass plate of the present invention, the lubricant liquid 35 can be supplied to the storage chamber 34 of the bearing 33, and the lubricant liquid 35 and the storage chamber 34 can be discharged together from the storage chamber 34 through the discharge path 37.的气38。 The gas 38. According to this configuration, not only the dust caught by the lubricating liquid 35 but also the dust suspended in the storage chamber 34 can be excluded from the storage chamber 34. This can effectively prevent dust particles suspended in the storage chamber 34 from leaking out of the storage chamber 34 and adhering to the glass plate G being transported. In addition, by generating the flow of the gas 38 toward the discharge path 37 (refer to FIG. 3 ), the gas 38 in the storage chamber 34 can be actively brought into contact with the lubricating fluid 35, and therefore the lubricating fluid 35 can also improve the capture of dust. effect. Of course, by providing the supply path 36 and the discharge path 37 of the lubricating fluid 35 in the storage chamber 34, the storage chamber 34 is always in a state where clean lubricating fluid 35 is present, and therefore a stable capturing effect can be obtained. As described above, according to the manufacturing method and manufacturing apparatus of the glass plate of the present invention, it is possible to prevent the dust generated when the glass plate G is transported from adhering to the surface Ga of the glass plate G, and to provide the glass plate G with excellent surface quality.

In addition, as in the present embodiment, by sucking the inside of the storage chamber 34 using the suction device 39, not only can the gas 38 in the storage chamber 34 be discharged through the discharge path 37, but also through the casing 45 of the storage chamber 34 and The gap of the shaft 32 forms the flow of the gas 38 from outside the storage chamber 34 toward the storage chamber 34 (see FIG. 3 ). With this, it is possible to more effectively prevent dust from leaking out of the storage chamber 34.

In addition, in the present embodiment, since the gas-liquid separation tank 40 that separates the lubricating fluid 35 and the gas 38 is disposed between the discharge path 37 and the suction device 39, the storage chamber 34 can be efficiently discharged from the storage chamber 34 with a simple structure.内的滑液35与气38。 The lubricating fluid 35 and gas 38. In addition, by discharging the lubricating fluid 35 and the gas 38 in a state of being separated from each other, the lubricating fluid 35 can be circulated and reused (see FIG. 3 ). Therefore, the amount of lubricating fluid 35 used can be reduced and it is economical. In addition, by circulating the lubricating fluid 35, the smooth circulation of the lubricating fluid 35 in the storage chamber 34 can be achieved, so that it is possible to effectively prevent dust from adhering to and accumulating on the corners of the storage chamber 34 or the inner surface of the discharge path 37 Wait for the situation.

Although the first embodiment of the present invention has been described above, the glass plate manufacturing apparatus and manufacturing method of the present invention are of course not limited to the exemplified embodiments. This manufacturing apparatus and manufacturing method can adopt various forms within the scope of the present invention.

FIG. 5 is a cross-sectional view of the transport device 50 according to the second embodiment of the present invention. The conveyance device 50 differs from the conveyance device 14 shown in FIG. 2 in that the tank 41 disposed between the gas-liquid separation tank 40 and the pump 42 is omitted, and the gas-liquid separation tank 40 and the pump 42 are connected to be able to The lubricating liquid 35 is supplied from the gas-liquid separation tank 40 to the pump 42. That is, in the conveyance device 50 of the present embodiment, a predetermined amount of lubricating liquid 35 is always stored in the lower space 40d of the gas-liquid separation tank 40, and also serves as the tank 41 in the first embodiment. On the other hand, the exhaust passage 47 connected to the suction device 39 is always open to the upper space 40e of the gas-liquid separation tank 40, whereby the lubricating liquid 35 and the gas 38 can be separated by the gas-liquid separation tank 40. In this case, the gas-liquid separation tank 40 and the pump 42 are connected via the liquid discharge path 48. Therefore, the lubricating liquid 35 discharged from the gas-liquid separation tank 40 is pressure-fed by the pump 42 and flows into the storage chamber 34 again through the supply path 36. Since other configurations are the same as in the first embodiment, detailed descriptions are omitted here.

In this way, according to the conveying device 50 of the present embodiment, by discharging the lubricating fluid 35 and the gas 38 in the storage chamber 34 together from the storage chamber 34 through the discharge path 37, not only the trapped by the lubricating fluid 35 can be removed from the storage chamber 34 Dust, and can be excluded from the dust in the storage chamber 34 suspended. With this, as in the first embodiment, it is possible to effectively prevent dust particles suspended in the storage chamber 34 from leaking out of the storage chamber 34 and adhering to the glass plate G being transported. In addition, with regard to the conveying device 50, since the tank 41 is omitted, and the lubricating fluid 35 can be recycled at the same time, the above-mentioned effects can be effectively enjoyed, and at the same time, the piping system of the conveying device 50 can be further simplified.

In addition, in the above-mentioned embodiment, the case where the lubricant 38 and the gas 38 in the storage chamber 34 are discharged together through the discharge path 37, the lubricant 35 passes through the peripheral portion 37a of the discharge path 37, and the gas 38 is discharged The central portion 37b of the road 37 is, of course, not limited to this form. As long as the lubricating fluid 35 and the gas 38 can pass through the discharge path 37 together, the discharge forms of the lubricating fluid 35 and the gas 38 can be arbitrarily set. In addition, the form of the discharge path 37 can be changed accordingly.

In addition, in the above-mentioned embodiment, the following is exemplified: a roller 44 is attached to the outer periphery of the shaft 32 constituting the conveying device 14, 50, and the glass plate G is supported by the roller 44, but of course, the shaft 32 may be eliminated. Other forms. That is, the present invention can be applied to the shaft 32 that directly contacts the glass plate G and supports the glass plate G, or the invention can also be applied to a member for driving belts and the like having a conveying surface other than the outer surface of the roller 44 or the shaft 32的轴32。 The axis 32. In short, as long as the shaft 32 is related to the conveyance of the glass plate G, any shaft can be applied to the present invention.

In addition, in the above description, the case where the conveying devices 14 and 50 of the present invention can be carried in and out of the glass plate G in the washing step and the drying step, but of course the present invention can also be applied to other than the washing step or the drying step In the steps related to the manufacturing of the glass sheet G, the glass sheet G is carried in and out, or the glass sheet G is transported between the plurality of steps.

10: Cleaning and drying device 11: Cleaning the processing room 12: Drying room 13: Transportation path 14: Transport device 15: The first cleaning room 16: Second cleaning room 17: Cleaning roller 18: Cleaning fluid supply device 19: cleaning fluid 20: Eluent (washing liquid) 21: Eluent supply device 22: Deliquification chamber 23: First drying room 24: Second drying room 25: partition 26: Gas 27: Gas blowing device 28: Air knife 28a: supply port 29: Partition 30: Gas blowing device 31: Air knife 31a: Supply port 32: axis 33: Bearing 34: storage room 34a: underside 35: Lubricating fluid 36: Supply Road 37: discharge path 37a: Perimeter 37b: Central Department 38: Gas 39: Suction device 40: Gas-liquid separation tank 40a: top surface 40b: side 40c: Underside 40d: lower space 40e: upper space 41: Can 42: Pump 43: filter 44: Roller 45: Shell 46: Mounting base 47: Exhaust 48: Discharge path 50: conveying device A: Arrow G: glass plate Ga: surface h: liquid level height S1: sectional area S2: sectional area

FIG. 1 is a side view of a glass plate washing and drying device according to a first embodiment of the present invention. FIG. 2 is an A-A cross-sectional view of the transport device shown in FIG. 1. FIG. 3 is an A-A cross-sectional view for explaining an example of a usage state of the transport device shown in FIG. 2. 4 is a B-B cross-sectional view of the conveying device shown in FIG. 2. 5 is an A-A cross-sectional view of a conveyance device according to a second embodiment of the present invention.

10: Cleaning and drying device

11: Cleaning the processing room

12: Drying room

13: Transportation path

14: Transport device

15: The first cleaning room

16: Second cleaning room

17: Cleaning roller

18: Cleaning fluid supply device

19: cleaning fluid

20: Eluent (washing liquid)

21: Eluent supply device

22: Deliquification room

23: First drying room

24: Second drying room

25: partition

26: Gas

27: Gas blowing device

28: Air knife

28a: supply port

29: Partition

30: Gas blowing device

31: Air knife

31a: Supply port

32: axis

A: Arrow

G: glass plate

Ga: surface

Claims (8)

An apparatus for manufacturing a glass plate includes a transport apparatus for transporting a glass plate. The apparatus for manufacturing a glass plate is characterized by: The conveying device includes: Shaft, used for transportation; Bearings to support the shaft; A storage room for storing the bearing; A supply path to supply lubricating fluid to the storage chamber; and The discharge path discharges the lubricating fluid from the storage chamber, In addition, the lubricating liquid and the gas in the storage chamber can be discharged together from the storage chamber through the discharge path. The apparatus for manufacturing a glass sheet according to item 1 of the patent application scope, wherein a suction device for sucking the gas is provided on the outlet side of the discharge path. The apparatus for manufacturing a glass plate as described in item 2 of the patent application scope, wherein a gas-liquid separation tank is arranged between the discharge path and the suction device, and the gas-liquid separation tank uses the lubricating liquid and The difference in specific gravity of the gas separates the lubricating fluid from the gas. The apparatus for manufacturing a glass sheet as described in claim 3, wherein a plurality of the storage chambers are arranged, and the gas-liquid separation tank is connected to the plurality of storage chambers via the discharge path. The apparatus for manufacturing a glass sheet according to any one of claims 1 to 4, wherein the discharge path is connected to the bottom surface of the storage chamber. The apparatus for manufacturing a glass sheet according to any one of claims 1 to 5, wherein the cross-sectional area of the discharge path is larger than the cross-sectional area of the supply path. The apparatus for manufacturing a glass sheet according to any one of claims 1 to 6, wherein the conveying device is arranged in a drying chamber having an air knife. A method for manufacturing a glass plate includes a step of transporting a glass plate. The method for manufacturing a glass plate is characterized by: In the conveying step, the conveying device according to any one of claims 1 to 7 is used to convey the glass plate.

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