Glass article manufacturing device

Abstract

A glass article manufacturing device (1) is provided with: a conveyance device (10) that conveys a glass plate (G); and an air knife (15) that blows a gas (A1) toward the main surface (Gb) of the glass plate (G) being conveyed. A conveyance device (10) is provided with a roller member (11x) having: a roller shaft (17), the central axis of which intersects an air knife (15), is supported by a bearing (19), and has an end part (17a); and a roller (18) disposed on the roller shaft (17). An end portion (17a) of the roller shaft (17) is disposed so as to be separated from the air knife (15). The roller (18x) closest to the air knife (15) is disposed at a position closer to the air knife (15) than the bearing (19x) closest to the air knife (15).

Description

TECHNICAL FIELD

[0001] The present utility model relates to a carrying device for carrying a glass article having a planar main surface, a gas blowing tool for blowing gas to the main surface of a glass article carried by the carrying device, and a device and method for manufacturing a glass article. BACKGROUND

[0002] For example, in a method for manufacturing a glass plate such as a glass substrate for a display, a process of cleaning the glass plate, a process of drying the glass plate to remove cleaning liquid adhered to the main surface of the glass plate at the time of cleaning, and the like are performed.

[0003] The drying process is sometimes performed by a device disclosed in Patent Literature 1, for example. The device is configured to blow gas to the main surface of a glass plate from a gas blowing tool (air blade in this document) while carrying the glass plate by a roller conveyor as a carrying device.

[0004] In addition, the carrying device disclosed in this document is provided with a roller member around the gas blowing tool, the roller member having a roller shaft whose central axis intersects the gas blowing tool and which is supported by a bearing, and a roller disposed on the roller shaft. The end portion of the roller shaft of the roller member on the side close to the gas blowing tool is separated from the gas blowing tool.

[0005] By disposing the roller member in this state, interference of the roller member with the gas blowing tool is avoided.

[0006] PRIOR ART DOCUMENT

[0007] PATENT LITERATURE

[0008] Patent Literature 1: Chinese Patent Application Publication No. 107401914 SUMMARY

[0009] PROBLEMS TO BE SOLVED BY THE UTILITY MODEL

[0010] In the carrying device disclosed in Patent Literature 1, the end portion of the roller shaft of the roller member on the side close to the gas blowing tool is supported by a bearing (bearing block). In other words, the bearing supporting the roller shaft is disposed at a position closer to the gas blowing tool than the roller closest to the gas blowing tool among all the rollers disposed on the roller shaft.

[0011] If this structure is adopted, the region in which no rollers exist is undesirably large around the periphery of the gas blowing means. When the region in which no rollers exist is undesirably large, the region in which the glass sheet is supported is also undesirably large. Therefore, the glass sheet is easily bent in this region. Thus, it is sometimes difficult to properly perform the conveyance of the glass sheet. In addition, when the roller shaft is to be firmly supported, since the size of the bearing is larger than the size of the roller, the bearing is easily interfered with the gas blowing means. Therefore, when the bearing is disposed at a distance from the gas blowing means that is large enough so that the bearing is not interfered with the gas blowing means, the region in which no rollers exist is further enlarged.

[0012] From the above viewpoint, the object of the present application is to correct the improper conveyance of the glass article resulting from the disposition of the gas blowing means so as to avoid interference with the roller member.

[0013] Means for solving the problem

[0014] (1) To solve the above problem, a first aspect of the present application is a glass article manufacturing apparatus including: a conveyance device that conveys a glass article; and a gas blowing means that blows gas to the glass article conveyed by the conveyance device, the conveyance device including a roller member having: a roller shaft whose central axis intersects the gas blowing means and which is supported by a bearing and has an end portion; and a roller disposed on the roller shaft, the end portion of the roller shaft being disposed apart from the gas blowing means, characterized in that the roller of the roller member that is disposed closest to the gas blowing means among all the rollers disposed on the roller shaft is disposed at a position closer to the gas blowing means than the bearing closest to the gas blowing means among all the bearings that support the roller shaft.

[0015] According to this structure, no bearing exists at a position closer to the gas blowing means than the roller closest to the gas blowing means. Thus, it is possible to reduce the region in which no rollers exist around the periphery of the gas blowing means. As a result, it is possible to properly perform the conveyance of the glass article.

[0016] (2) In the structure of the above (1), the roller member can be disposed on both sides of the gas blowing means so as to sandwich the gas blowing means.

[0017] In this way, no bearing exists at a position closer to the gas blowing means than the roller closest to the gas blowing means on both sides of the gas blowing means so as to sandwich the gas blowing means. Thus, it is possible to more reliably reduce the region in which no rollers exist around the periphery of the gas blowing means.

[0018] (3) In the structure of the above (1) or (2), one to four rollers can be disposed between the bearing closest to the gas blowing means and the end portion of the roller shaft closest to the gas blowing means.

[0019] In this way, the bearing is arranged next to the end portion of the roller shaft, and thus the glass article is stably supported from below by the roller around the periphery of the gas blowing tool.

[0020] (4) In any one of the structures described in (1) to (3) above, the diameter of the roller shaft can be different in the axial direction, and the diameter of the roller shaft at a position corresponding to the bearing closest to the gas blowing tool can be smaller than the average of the diameters of the roller shaft at positions corresponding to all of the rollers.

[0021] In this way, the bearing can be prevented from coming into contact with the glass article being conveyed.

[0022] (5) A second aspect of the present application made to solve the above problem is a method for manufacturing a glass article, characterized by performing manufacturing-related processing on the glass article using any one of the manufacturing apparatuses described in (1) to (4) above.

[0023] According to this structure, the processing of removing liquid (e.g., cleaning liquid) adhering to the surface of the glass article being conveyed by blowing gas from the gas blowing tool, and the like, can be appropriately performed using the manufacturing apparatus described above.

[0024] EFFECT OF THE INVENTION

[0025] According to the present application, the inappropriate conveyance of the glass article caused by the presence of the gas blowing tool is corrected. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is a partial cross-sectional side view showing the overall structure of a manufacturing apparatus for a glass article according to an embodiment of the present application.

[0027] Figure 2 is a plan view showing a main part of a manufacturing apparatus for a glass article according to an embodiment of the present application.

[0028] Figure 3 is a plan view showing a main part of a manufacturing apparatus for a glass article according to an embodiment of the present application.

[0029] Figure 4 is a side view showing a main part of a manufacturing apparatus for a glass article according to an embodiment of the present application.

[0030] Figure 5 is a partial cross-sectional front view showing a main part of a manufacturing apparatus for a glass article according to an embodiment of the present application.

[0031] Figure 6 is a flowchart showing a method for manufacturing a glass article according to an embodiment of the present application.

[0032] Figure 7 is a plan view that enlarges and shows the main part of the glass article manufacturing apparatus of other embodiments of the present application. DETAILED DESCRIPTION

[0033] Hereinafter, the glass article manufacturing apparatus and the glass article manufacturing method of the embodiments of the present application will be described with reference to the drawings.

[0034] Figure 1 is a schematic side view that shows the overall structure of the glass article manufacturing apparatus 1. Note that the arrow X in this figure shows the conveying direction of the glass plate G as a glass article. Thus, the glass plate G is conveyed toward the arrow X, and the direction shown by the arrow X is called the downstream side, and the opposite side thereof is called the upstream side.

[0035] The glass plate G has a first main face Ga on the upper side and a second main face Gb on the lower side, and has a rectangular shape when viewed from the direction orthogonal to the two main faces Ga, Gb. In the following description, the direction parallel to the two main faces Ga, Gb of the glass plate G and orthogonal to the conveying direction X (the direction orthogonal to the plane of the paper of FIG. 1) is described as the "width direction". In the present embodiment, the thickness of the glass plate G is 10 to 1000 μm, and preferably 100 to 700 μm, and the length of the glass plate G in the conveying direction X and the width direction is 100 to 5000 mm, and preferably 1000 to 4000 mm. Figure 1

[0036] As shown in FIG. 1, the present manufacturing apparatus 1 has, in order from the upstream side, a first cleaning section 2, a second cleaning section 3, a first drying section 4, and a second drying section 5. The first cleaning section 2, the second cleaning section 3, the first drying section 4, and the second drying section 5 are divided by a bottom wall 6, a top wall 7, a pair of side walls 8, and five end walls 9. Thus, the first cleaning section 2, the second cleaning section 3, the first drying section 4, and the second drying section 5 exist inside each housing C2, C3, C4, C5 composed of the bottom wall 6, the top wall 7, the pair of side walls 8, and the five end walls 9. An opening part 9a for passing the conveyed glass plate G is provided in each end wall 9. Note that the top wall 7 can also be divided according to each housing C2, C3, C4, C5. In this case, each top wall 7 divided in this way can also be a lid that can be opened and closed. Figure 1

[0037] Further, the present manufacturing apparatus 1 has a conveying apparatus 10 having a roller conveyor. The conveying apparatus 10 has a plurality of roller members 11 arranged at intervals in the conveying direction X.

[0038] ​​The first cleaning section 2 includes an upper and lower pair of first liquid supply devices 12 that supply the cleaning liquid Wl to the glass plate G, and an upper and lower pair of cleaning rollers 13 disposed on the downstream side of the upper and lower pair of first liquid supply devices 12. The upper and lower pair of first liquid supply devices 12 supply the cleaning liquid Wl to the entire area of both main surfaces Ga, Gb of the glass plate G. The upper and lower pair of cleaning rollers 13 wipe both main surfaces Ga, Gb of the glass plate G to remove foreign matter and the like adhering to the surfaces, and are formed of an elastic material such as a sponge or a brush.

[0039] The second cleaning section 3 includes an upper and lower pair of second liquid supply devices 14 that supply a cleaning rinse W2 to the glass plate G that has passed through the first cleaning section 2, at two positions in the conveyance direction X. These second liquid supply devices 14 supply the cleaning rinse W2 to the entire area of both main surfaces Ga, Gb of the glass plate G.

[0040] The first drying section 4 includes an upper and lower pair of first gas blowing tools 15 that blow a gas Al (e.g., clean dry air or the like) toward the glass plate G. The upper and lower pair of first gas blowing tools 15 blow the gas Al toward both main surfaces Ga, Gb of the glass plate G that has passed through the second cleaning section 3.

[0041] The second drying section 5 includes an upper and lower pair of second gas blowing tools 16 that blow a gas Al (e.g., clean dry air or the like) toward the glass plate G. The upper and lower pair of second gas blowing tools 16 blow the gas Al toward both main surfaces Ga, Gb of the glass plate G that has passed through the first drying section 4.

[0042] The shape and posture of the first gas blowing tools 15 in the first drying section 4 are the same as the shape and posture of the second gas blowing tools 16 in the second drying section 5. Both the first gas blowing tools 15 and the second gas blowing tools 16 are formed of gas knives in the present embodiment. Thus, in the following description, the first gas blowing tools 15 are described as first gas knives 15, and the second gas blowing tools 16 are described as second gas knives 16.

[0043] The shape and arrangement of the respective roller members 11 in the first drying section 4 are the same as the shape and arrangement of the respective roller members 11 in the second drying section 5.

[0044] Figure 2 is a plan view illustrating a main portion of the first drying section 4. Note that in this drawing, only the lower first gas knife 15 (hereinafter, simply referred to as the first gas knife 15) of the upper and lower pair of first gas knives 15 is illustrated for convenience.

[0045] As shown in the figure, the first air knife 15 extends in a straight line in a state of being inclined at an angle a with respect to the conveyance direction X of the glass plate G. The angle a is preferably 20° to 70°, and is set to 45° in the present embodiment. The both end portions of the first air knife 15 are fixed to the pair of side walls 8 of the housing C4, respectively.

[0046] The first air knife 15 is formed with a blow port 15a extending in a straight line over the entire length thereof. The blow port 15a is formed at the side edge of the upstream side of the first air knife 15. Thus, the gas Al is blown from the blow port 15a toward the upstream side and in an inclined direction with respect to the second main surface Gb of the glass plate G as shown in the figure.

[0047] All of the roll members 11 provided in the conveyance device 10 are provided with a roll shaft 17 extending in the width direction and a plurality of rolls 18 arranged at intervals (constant intervals in the present embodiment) in the axial direction of the roll shaft 17. Also, all of the roll shafts 17 are orthogonal to the conveyance direction X of the glass plate G.

[0048] Among all of the roll members 11, there is a roll member 11 in which the central axis of the roll shaft 17 intersects the first air knife 15 (hereinafter referred to as a specific roll member 11x). The specific roll member 11x has a plurality of rolls arranged on both sides thereof (both sides in the conveyance direction X) with the first air knife 15 interposed therebetween. Specifically, the specific roll member 11x has nine rolls arranged on the upstream side of the first air knife 15 and nine rolls arranged on the downstream side thereof. Also, the end portion 17a of the roll shaft 17 of all of the specific roll members 11x on the side closer to the first air knife 15 is separated from the first air knife 15. Thus, interference between all of the specific roll members 11x and the first air knife 15 is avoided.

[0049] In addition, the roll shaft 17 of all of the specific roll members 11x is supported by two bearings 19. The bearing 19 on the side closer to the first air knife 15 (hereinafter referred to as a specific bearing 19x) of the two bearings 19 is provided inside the housing C4. In contrast, the bearing 19 on the side farther from the first air knife 15 is attached to the side wall 8 (the outer surface of the side wall 8 in the present embodiment) of the housing C4.

[0050] Moreover, all of the specific roller members 11x are arranged at the rollers 18 of the roller shafts 17 closest to the first air knife 15 (hereinafter, referred to as specific rollers 18x) at positions closer to the first air knife 15 than the specific bearings 19x. In the drawing, the specific rollers 18x and the specific bearings 19x are adjacent in the axial direction of the roller shafts 17. In this case, the roller shaft 17 of one specific roller 18x can be supported by three or more bearings 19, unlike the drawing. In this case, the specific roller 18x is arranged at a position closer to the first air knife 15 than the bearing 19 closest to the first air knife 15 among all of the bearings 19 supporting the roller shaft 17 (i.e., the specific bearing 19x). By arranging the specific rollers 18x and the specific bearings 19x in the above-described positional relationship, it is possible to reduce the area in which no rollers 18 exist in the periphery of the first air knife 15. Assuming that the specific bearings 19x are arranged at positions closest to the first air knife 15, the first air knife 15 needs to be sufficiently separated from the end portions 17a of the roller shafts 17 because of interference between the first air knife 15 and the specific bearings 19. Therefore, the area in which no rollers 18 exist is enlarged, and the area supporting the glass sheet G is also undesirably enlarged. Thus, when there is a portion in which the interval between the rollers 18 is wide, the glass article is easily bent in the area in which no rollers 18 exist, and sometimes the glass article cannot be properly transported.

[0051] In addition, the center axes of the roller shafts 17 of the specific roller members 11x arranged on the upstream side of the first air knife 15 sandwiching the first air knife 15 and the center axes of the roller shafts 17 of the specific roller members 11x arranged on the downstream side of the first air knife 15 sandwiching the first air knife 15 do not coincide in the transport direction X. In other words, the center axes of the roller shafts 17 of the former specific roller members 11x and the center axes of the roller shafts 17 of the latter specific roller members 11x are offset in the transport direction X. If the specific roller members 11x are arranged in this positional relationship, it is possible to reduce the area in which no rollers 18 exist in the periphery of the first air knife 15 compared to the case in which the center axes of the roller shafts 17 of the respective specific rollers 11x coincide on the upstream side and the downstream side of the first air knife 15.

[0052] Further, as shown in FIG. 6, the specific roller members 11x are arranged at positions closer to the first air knife 15 than the bearings 19 supporting the roller shafts 17. In this case, the specific roller members 11x are arranged at positions closer to the first air knife 15 than the bearings 19 closest to the first air knife 15 among all of the bearings 19 supporting the roller shafts 17 (i.e., the specific bearings 19x). By arranging the specific rollers 18x and the specific bearings 19x in the above-described positional relationship, it is possible to reduce the area in which no rollers 18 exist in the periphery of the first air knife 15. Figure 3

[0053] Note that, as shown in FIG. 6, the specific roller members 11x are arranged at positions closer to the first air knife 15 than the bearings 19 supporting the roller shafts 17. In this case, the specific roller members 11x are arranged at positions closer to the first air knife 15 than the bearings 19 closest to the first air knife 15 among all of the bearings 19 supporting the roller shafts 17 (i.e., the specific bearings 19x). By arranging the specific rollers 18x and the specific bearings 19x in the above-described positional relationship, it is possible to reduce the area in which no rollers 18 exist in the periphery of the first air knife 15. Figure 2 ​As shown, both end portions of the roller members 11 other than the specific roller member 11x are supported by the bearings 19 attached to the outer surfaces 8a of the pair of side walls 8, respectively. In addition, all the roller members 11 (including the specific roller member 11x) are rotationally driven by a drive mechanism (not shown) provided outside the side walls 8 of the housing C4. Note that a roller member not subjected to rotational drive can also be included in all the roller members 11.

[0054] Figure 4 The glass sheet G is illustrated in a state where it is being carried in the X direction. According to this drawing, the area where no roller 18 is present around the first air knife 15 is small, and thus the carrying of the glass sheet G is appropriately performed. In addition to this, in the case where the thickness of the glass sheet G is thin, it is difficult for the glass sheet G to be deflected around the first air knife 15. Thus, even in this case, the carrying of the glass sheet G is appropriately performed, and the rinsing liquid W2 for cleaning adhered to both main surfaces Ga, Gb of the glass sheet G can be appropriately removed using the gas Al blown out from the first air knife 15.

[0055] Figure 5 is a partial cross-sectional front view illustrating the detailed configuration of the specific bearing 19x and the outline configuration of the supply and discharge device 20 that supplies and discharges the lubricating liquid W3 to the specific bearing 19x. As shown in this drawing, the specific bearing 19x is provided with a bearing case 21 made of metal or the like and a bearing body 22 made of resin that houses the bearing case 21 and supports the roller shaft 17 so as to be rotatable. The bearing body 22 is provided with an inner ring 22a fixed to the roller shaft 17, an outer ring 22b fixed to the bearing case 21, and a plurality of rolling bodies 22c that roll between the inner ring 22a and the outer ring 22b. The plurality of rolling bodies 22c are held by a holder (not shown) in a manner that maintains a constant interval.

[0056] The supply and discharge device 20 is provided with a supply path 23 that supplies the lubricating liquid W3 to a housing chamber 21a inside the bearing case 21 and a discharge path 24 that discharges the lubricating liquid W3 from the housing chamber 21a.

[0057] The supply path 23 is provided with a tank 25 that stores the lubricating liquid W3, a pump 26, a filter 27, and a flow meter 28. The tank 25 is configured to recover the lubricating liquid W3 flowing in the discharge path 24. The pump 26 pressure-feeds the lubricating liquid W3 stored in the tank 25 to the housing chamber 21a. The filter 27 is provided on the downstream side of the pump 26 and recovers foreign matter contained in the lubricating liquid W3. The flow meter 28 is disposed on the downstream side of the filter 27, but the position of the flow meter 28 is not limited thereto.

[0058] The discharge passage 24 includes a gas-liquid separation tank 29 and a suction device 30. The gas-liquid separation tank 29 separates the lubricating liquid W3 discharged from the storage chamber 21a from the gas. The gas-liquid separation tank 29 includes an exhaust portion 31 and a drain portion 32. The exhaust portion 31 is connected to the suction device 30. The drain portion 32 is arranged above the tank 25 so that the lubricating liquid W3 flows toward the tank 25 of the supply passage 23. The suction device 30 draws the gas within the storage chamber 16a through the discharge passage 24.

[0059] By the operation of the supply and discharge device 20 , a state in which a part of the rolling element 22 c of the bearing body 22 is immersed in the lubricating fluid W3 is maintained in the accommodation chamber 21 a .

[0060] With this configuration, the pipe portion (supply pipe) of the supply path 23 and the pipe portion (discharge pipe) of the discharge path 24 can be disposed inside the housing C4, while other components (e.g., components denoted by reference numerals 25 to 32) can be disposed outside the housing C4. This allows maintenance and inspection of the supply and discharge device 20, which supplies and discharges the lubricating fluid W3 to and from a specific bearing 19x, to be performed outside the housing C4.

[0061] Furthermore, with this configuration, a bearing 19 other than the specific bearing 19x can be constructed using only a metal bearing equivalent to the aforementioned bearing body 22 and mounted on the outer surface 8a of the side wall 8 of the housing C4. In this case, maintenance and inspection of the bearing 19 can also be performed from outside the housing C4. It should be noted that this bearing 19 can also have the same configuration as the specific bearing 19x and its supply and discharge device 20.

[0062] The second drying section 5 (including the supply and discharge device attached thereto) has the same structure as the first drying section 4 (including the supply and discharge device 20 attached thereto), and thus achieves the same functions and effects as the first drying section 4. Furthermore, the second drying section 5 has the advantage of being able to remove the rinse liquid W2 used for cleaning that was not completely removed by the first drying section 4.

[0063] Next, a method for manufacturing a glass plate G using the manufacturing apparatus 1 described above will be described. Figure 6 As shown, the present manufacturing method includes a processing step S1, a first cleaning step S2, a second cleaning step S3, a first drying step S4, and a second drying step S5. In addition, the present manufacturing method includes a conveying step of conveying the glass sheet G using the conveying device 10.

[0064] The processing step S1 is a step of performing processing of processing an end surface of the glass plate G with, for example, a grindstone, processing of polishing a surface of the glass plate G, and processing of roughening a surface of the glass plate G, and the like. In the present manufacturing method, as a preceding step of the processing step S1, a cutting step of cutting out a glass plate G of a desired size from a glass raw plate can also be performed.

[0065] The first cleaning step S2 is a step of removing foreign matter and the like adhering to both main surfaces Ga, Gb of the glass plate G with the pair of first liquid supply devices 12 and the pair of cleaning rollers 13 arranged above and below.

[0066] The second cleaning step S3 is a step of performing a rinsing cleaning of both main surfaces Ga, Gb of the glass plate G with the rinsing liquid W2 using the pair of second liquid supply devices 14 arranged above and below at two positions in the conveyance direction X.

[0067] The first drying step S4 is a step of removing the rinsing liquid W2 for cleaning adhering to both main surfaces Ga, Gb of the glass plate G using the pair of first air knives 15 arranged above and below.

[0068] The second drying step S5 is a step of removing the rinsing liquid W2 for cleaning remaining on both main surfaces Ga, Gb of the glass plate G using the pair of second air knives 16 arranged above and below.

[0069] The above describes the glass article manufacturing apparatus and the glass article manufacturing method according to the embodiment of the present application, but the embodiment of the present application is not limited thereto, and various modifications can be made without departing from the gist of the present application.

[0070] For example, in the above embodiment, the glass article is provided as the glass plate G, but instead thereof, the glass article can be provided as a glass ribbon, a tube glass, or the like of a desired length (a length that can be conveyed by the conveyance device 10).

[0071] In the above embodiment, both the first gas blowing tool 15 and the second gas blowing tool 16 are configured using air knives, but one or both of them can be configured using a gas blowing tool that blows gas in a shower-like manner or the like.

[0072] In the above embodiment, with respect to all of the specific roller members 11x arranged on the upstream side and the downstream side of the first air knife 15, the specific roller 18x is provided at a position closer to the first air knife 15 than the specific bearing 19x, but this configuration can be provided only for a part of the specific roller members 11x, or can be provided only for the specific roller members 11x arranged on either one of the upstream side and the downstream side of the first air knife 15.

[0073] In the above embodiment, nine of the specific roller members 11x are arranged on the upstream side of the first air knife 15 and nine are arranged on the downstream side, but the number of specific roller members 11x is not limited to this.

[0074] In the above embodiment, the specific roller 18x and the specific bearing 19x are adjacent in the axial direction of the roller shaft 17, but two to four rollers 18 can be arranged between the end portion 17a of the roller shaft and the specific bearing 19x. When a larger number of rollers 18 are arranged between the end portion 17a of the roller shaft and the specific bearing 19x, the tendency of the support of the roller shaft 17 to become unstable, and therefore the rollers 18 arranged between the end portion 17a of the roller shaft and the specific bearing 19x are limited to four or less, thereby stabilizing the support of the roller shaft 17.

[0075] In the above embodiment, the bearing 19 mounted to the side wall 8 of the housing C4 can be mounted to the outside of the side wall 8. Figure 2

[0076] In the above embodiment, as shown in FIG. 6, the diameter of the roller shaft 17 (17x) at the position corresponding to the specific bearing 19x can be made smaller than the average diameter of the roller shaft 17 (17b, 17c) at the positions corresponding to the rollers 18, 18x. Figure 7 In the above embodiment, as shown in FIG. 6, the diameter of the roller shaft 17 (17x) at the position corresponding to the specific bearing 19x can be made smaller than the average diameter of the roller shaft 17 (17b, 17c) at the positions corresponding to the rollers 18, 18x. Figure 7 In the above embodiment, as shown in FIG. 6, the diameter of the roller shaft 17 (17x) at the position corresponding to the specific bearing 19x can be made smaller than the average diameter of the roller shaft 17 (17b, 17c) at the positions corresponding to the rollers 18, 18x.

[0077] In the above embodiment, the arrangement of the first air knife 15 and the roller members 11, 11x of the carrying device 10 is illustrated in FIG. 1, but the arrangement of the second air knife 16 and the roller members 11, 11x of the carrying device 10 is the same as that shown in FIG. 1. Figure 2 Figure 2

[0078] Explanation of Reference Numerals

[0079] 1 Glass article manufacturing apparatus

[0080] 10 Carrying device

[0081] 11 Roller member

[0082] 11x Specific roller member in which the gas blowing tool intersects the center axis

[0083] ​​​15 gas blowing means (first gas knife)

[0084] 17 roller shaft

[0085] 17a end of the roller shaft

[0086] 18 roller

[0087] 18x specific roller closest to the gas injection means

[0088] 19 bearing

[0089] 19x specific bearing closest to the gas injection means

[0090] Gb first main face

[0091] Gb second main face.

Claims

1. A manufacturing device for a glass article, comprising: a conveying device for conveying a glass article; and a gas blowing tool for blowing gas toward the glass article conveyed by the conveying device. The conveying device includes a roller member having: a roller shaft whose central axis intersects with the gas blowing tool and is supported by a bearing and has an end portion; and a roller arranged on the roller shaft. The end of the roller shaft is arranged separately from the gas blowing tool, It is characterized by: The roller of the roller member disposed on the roller shaft that is closest to the gas blowing tool is disposed closer to the gas blowing tool than the bearing closest to the gas blowing tool among all bearings supporting the roller shaft of the roller member.

2. The manufacturing device for glass articles according to claim 1, characterized in that The roller members are respectively arranged on both sides of the gas blowing tool with the gas blowing tool interposed therebetween.

3. The manufacturing device for glass articles according to claim 1 or 2, characterized in that: One to four rollers are arranged between the bearing closest to the gas blowing tool and the end of the roller shaft closest to the gas blowing tool.

4. The manufacturing device for glass articles according to claim 1 or 2, characterized in that: The diameter of the roller shaft varies in the axial direction, and the diameter of the roller shaft at a position corresponding to the bearing closest to the gas blowing tool is smaller than an average value of the diameters of the roller shaft at positions corresponding to all the rollers.

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