Glass product manufacturing device

Abstract

A glass product manufacturing device provided with a conveyance device for conveying a glass product is characterized in that the conveyance device is provided with a shaft for conveyance, a bearing for supporting the shaft, a lubricating device for supplying a lubricating liquid to the bearing, and an accommodating chamber for accommodating the bearing, the bearing is provided with an inner ring for supporting the shaft, an outer ring disposed on the outside of the inner ring, and a rolling body rolling along a rolling track formed between the inner ring and the outer ring. The lubricating device is provided with a supply path for supplying the lubricating liquid to the accommodating chamber and a discharge path for discharging the lubricating liquid from the accommodating chamber, the accommodating chamber is provided with a storage part for storing the lubricating liquid supplied from the supply path, and the storage part is provided with a blocking piece for enabling the lubricating liquid to overflow towards the bearing. The stopper is configured to be higher than the position of the lower end portion of the rolling body passing through the lowermost portion of the rolling track, so that an appropriate amount of lubricating liquid can be supplied to the bearing.

Description

Technical Field

[0001] The utility model relates to a method and a device for manufacturing glass products. Background Art

[0002] For example, in a method for manufacturing a glass plate represented by a glass substrate for a display, a processing step of performing end surface processing on a glass plate cut from a glass original plate, a cleaning step of cleaning the glass plate after processing, and a drying step of removing a cleaning liquid adhered to the surface of the glass plate during cleaning by blowing gas from an air knife are performed (for example, refer to Patent Document 1).

[0003] In addition, when the glass plate is subjected to the cleaning process and the drying process, the glass plate is transported by a transport device such as a roller conveyor. Specifically, the transport device includes: a transport shaft; a bearing that supports the shaft; a storage chamber that stores the bearing; a supply path that supplies lubricating liquid to the storage chamber; and a discharge path that discharges the lubricating liquid from the storage chamber, and the transport device can discharge the gas in the storage chamber from the storage chamber through the discharge path together with the lubricating liquid (see technical solution 1 of the document).

[0004] Prior art literature

[0005] Patent Literature

[0006] Patent Document 1: Japanese Patent Application Publication No. 2020-40757 Utility Model Content

[0007] Issues to be solved by utility models

[0008] In conventional transport devices, there is a case where the lubricating fluid supplied from the supply path to the storage chamber is insufficient, and there is a possibility that the bearings will be worn out early. In order to extend the life of the bearings, it is necessary to supply an appropriate amount of lubricating fluid to the bearings.

[0009] The technical problem of the present invention is to supply an appropriate amount of lubricating fluid to a bearing.

[0010] Solutions to Solve Problems

[0011] The utility model is a method for manufacturing a glass product for solving the above-mentioned problems, comprising a conveying process of conveying the glass product by using a conveying device, characterized in that the conveying device includes a conveying shaft, a bearing supporting the shaft, a lubricating device for supplying lubricating fluid to the bearing, and a receiving chamber for receiving the bearing, the bearing including an inner ring supporting the shaft, an outer ring arranged on the outer side of the inner ring, and a rolling body rolling along a rolling track formed between the inner ring and the outer ring, the lubricating device includes a supply path for supplying the lubricating fluid to the receiving chamber and a discharge path for discharging the lubricating fluid from the receiving chamber, the conveying process includes a supply process of supplying the lubricating fluid from the supply path to the bearing received in the receiving chamber, and in the supply process, the lubricating fluid is supplied to the rolling body passing through the lowest part of the rolling track to a height of more than 70% of the height of the rolling body.

[0012] According to this structure, by supplying lubricating fluid to a height of more than 70% of the height of the rolling element passing through the lowest part of the rolling track in the bearing, an appropriate amount of lubricating fluid can be supplied to the bearing, thereby suppressing the wear of the inner ring, outer ring and rolling element.

[0013] In the manufacturing method of the glass product of the utility model, the containing chamber may also have a storage portion for storing the lubricating fluid supplied from the supply path, the storage portion has a blocking member for causing the lubricating fluid to overflow toward the bearing, and the blocking member is configured to be higher than the position of the lower end portion of the rolling body passing through the lowest portion of the rolling track.

[0014] According to this configuration, by causing the lubricating liquid to overflow from the stopper of the reservoir, an appropriate amount of the lubricating liquid can be supplied to the bearing.

[0015] In the manufacturing method of the glass product of the utility model, the containing chamber may also include: a supply port, which supplies the lubricating fluid from the supply path to the inside of the containing chamber; and a discharge port, which discharges the lubricating fluid that has passed through the bearing to the outside of the containing chamber, and the inner ring includes a fixing portion for fixing the inner ring to the shaft, and the fixing portion is arranged on the discharge port side.

[0016] When the fixing part is arranged on the supply port side, the space for supplying the lubricating fluid to the bearing in the storage chamber is limited. In the present invention, by arranging the fixing part on the discharge port side, a larger space for supplying the lubricating fluid in the storage chamber can be ensured.

[0017] In the manufacturing method of the glass product of the present invention, the axis may be inclined relative to the horizontal direction. In this case, the axis may be inclined downward from the supply port toward the discharge port.

[0018] The utility model is a manufacturing device for glass products for solving the above-mentioned problems, comprising a conveying device for conveying glass products, characterized in that the conveying device comprises a conveying shaft, a bearing supporting the shaft, a lubricating device for supplying lubricating fluid to the bearing, and a receiving chamber for receiving the bearing, the bearing comprising an inner ring supporting the shaft, an outer ring arranged on the outer side of the inner ring, and a rolling body rolling along a rolling track formed between the inner ring and the outer ring, the lubricating device comprising a supply path for supplying the lubricating fluid to the receiving chamber and a discharge path for discharging the lubricating fluid from the receiving chamber, the receiving chamber comprising a storage portion for storing the lubricating fluid supplied from the supply path, the storage portion having a blocking member for causing the lubricating fluid to overflow toward the bearing, the blocking member being configured to be higher than the position of the lower end portion of the rolling body passing through the lowest portion of the rolling track.

[0019] According to this configuration, by causing the lubricating liquid to overflow from the stopper of the reservoir, an appropriate amount of the lubricating liquid can be supplied to the bearing.

[0020] Utility Model Effect

[0021] According to the present invention, an appropriate amount of lubricating fluid can be supplied to the bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a side view showing the manufacturing apparatus of the glass product.

[0023] Figure 2 It is a cross-sectional view showing the transport device.

[0024] Figure 3 yes Figure 2 A cross-sectional view taken along line III-III.

[0025] Figure 4 It is a cross-sectional view showing the main part of the transport device.

[0026] Figure 5 is a flow chart showing a method for manufacturing a glass product. DETAILED DESCRIPTION

[0027] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. Figures 1 to 5 An embodiment of a manufacturing device and a manufacturing method of a glass product of the present invention is described. Hereinafter, a rectangular glass plate is exemplified as a glass product, but the shape of the glass product is not limited to this embodiment.

[0028] like Figure 1As shown, the manufacturing apparatus 1 of the glass product includes a cleaning section 2, a drying section 3, and conveying devices 4a and 4b for conveying a glass sheet G along a predetermined conveying direction X. In the following, when describing the positional relationship of these components in the manufacturing apparatus 1, the terms "upstream side" and "downstream side" may be used based on the conveying direction X of the glass sheet G.

[0029] The cleaning section 2 includes a first cleaning device 5 and a second cleaning device 6 provided on the downstream side of the first cleaning device 5 .

[0030] The first cleaning device 5 includes a device 7 that supplies the cleaning liquid to the glass plate G (hereinafter referred to as “first supply device”) and a cleaning tool 8 disposed on the downstream side of the first supply device 7 .

[0031] The first supply device 7 includes a pair of upper and lower supply devices in a manner of supplying the cleaning liquid 9 to the entire surface (upper surface Ga and lower surface Gb) of the glass plate G. The cleaning liquid 9 supplied by the first supply device 7 may be, for example, pure water, or may contain detergents (acidic detergents, alkaline detergents), surfactants, alkaline ion water, etc. as needed.

[0032] The cleaning tool 8 is composed of a pair of upper and lower cleaning rollers that wipe the surfaces Ga and Gb of the glass plate G to remove dirt such as foreign matter attached to the surfaces Ga and Gb. The cleaning roller may form a contact portion with the glass plate G using an elastic material such as a sponge, or may form a contact portion with the glass plate G using a brush. In the former case, the cleaning roller is a sponge roller, and in the latter case, the cleaning roller is a brush roller. A cleaning disc may be used instead of the cleaning roller, or the cleaning roller and the cleaning disc may be combined.

[0033] The second cleaning device 6 includes a pair of upper and lower supply devices (hereinafter referred to as "second supply devices") 11 for supplying a rinse liquid (washing liquid) 10 to the glass plate G that has passed through the first cleaning device 5. As the rinse liquid 10 supplied to the glass plate G by the second supply device 11, a known type of rinse liquid such as pure water can be used.

[0034] like Figure 1 As shown, the drying unit 3 includes a pair of upper and lower first air knives 13 for blowing the gas 12 toward the glass sheet G, and a pair of upper and lower second air knives 14 provided downstream of the first air knives 13 .

[0035] The first air knife 13 is made of metal, for example, stainless steel, and is a gas blowing device for blowing a gas 12 such as a clean dry gas toward the surfaces Ga and Gb of the glass plate G that has passed through the second cleaning device 6. The first air knife 13 has a jet port 13a for blowing the gas 12.

[0036] The second air knife 14 is made of metal, for example, stainless steel. The second air knife 14 may also have the same shape as the first air knife 13. The second air knife 14 may also be a gas blowing device for blowing a gas 12 such as a clean dry gas to the surface Ga, Gb of the glass plate G that has passed through the first air knife 13. The second air knife 14 has a jet port 14a for ejecting the gas 12.

[0037] like Figure 1 As shown, the conveying devices 4a and 4b include a first conveying device 4a for conveying the glass plate G in the washing section 2 and a second conveying device 4b for conveying the glass plate G in the drying section 3. Each of the conveying devices 4a and 4b is constituted by a roller conveyor, for example.

[0038] like Figure 1 as well as Figure 2 As shown, each conveying device 4 a , 4 b mainly includes: a plurality of conveying rollers 15 arranged at intervals along the conveying direction X of the glass sheet G; bearings 16 that support the conveying rollers 15 ; and a lubricating device 17 that supplies a lubricating fluid LF such as water to the bearings 16 .

[0039] like Figure 2 As shown, the conveying rollers 15 are inclined at a predetermined angle θ with respect to the horizontal direction perpendicular to the conveying direction X of the glass sheet G. The inclination angle θ of the conveying rollers 15 is preferably 1 to 30°. With this configuration, the glass sheet G conveyed by the conveying rollers 15 is conveyed in an inclined posture.

[0040] With the above-mentioned inclined posture, one end of the glass sheet G in the width direction (direction perpendicular to the conveying direction X) is located below the other end in the width direction of the glass sheet G. The lower end of the glass sheet G may be conveyed while being supported by rollers (not shown).

[0041] As described above, by conveying the glass sheet G in an inclined posture by the conveying rollers 15 , the cleaning liquid 9 or the rinse liquid 10 supplied to the glass sheet G flows from the other end side toward one end side in the width direction of the glass sheet G and flows down from the one end side.

[0042] like Figure 2 As shown, the conveying roller 15 includes a roller body 18 as a support portion for supporting the glass sheet G and a shaft 19 for supporting the roller body 18 .

[0043] The roller body 18 is made of resin, for example, but the material of the roller body 18 is not limited to this embodiment. In this embodiment, a plurality of disc-shaped roller bodies 18 can be formed at intervals along the length direction of the shaft 19, but it is not limited to this, and a roller body 18 that is longer in the length direction of the shaft 19 can also be used.

[0044] The shaft 19 is made of metal and extends in a direction perpendicular to the conveying direction X. The shaft 19 is rotationally driven by a driving device (not shown). The shaft 19 is supported by the bearing 16 so as to be inclined with respect to the horizontal direction.

[0045] like Figures 2 to 4 As shown, the bearing 16 supports the shaft 19 rotatably. The bearing 16 is composed of a deep groove ball bearing, an angular contact ball bearing, a ball bearing for special environments, a thrust ball bearing, a self-aligning ball bearing, a self-aligning roller bearing, etc. The bearing 16 includes an inner ring 20 supporting the shaft 19, an outer ring 21 arranged outside the inner ring 20, and a plurality of rolling elements 22 rolling between the inner ring 20 and the outer ring 21.

[0046] The inner ring 20 is made of resin such as PEEK or ceramics, but the material of the inner ring 20 is not limited to this embodiment. The inner ring 20 includes an insertion hole 20a through which the shaft 19 is inserted, an outer peripheral surface 20b, and a fixing portion 20c for fixing the inner ring 20 to the shaft 19.

[0047] The insertion hole 20a penetrates from one axial end to the other end of the inner ring 20. The outer peripheral surface 20b constitutes a raceway surface on which the rolling elements 22 roll in contact. The fixing portion 20c is a flange-shaped portion formed at only one axial end of the inner ring 20.

[0048] like Figure 3 As shown, the fixing portion 20c has a plurality of threaded holes 24 for inserting a fixing member 23 such as a screw member. The plurality of threaded holes 24 are formed at intervals along the circumferential direction of the fixing portion 20c. The threaded holes 24 are formed in a manner that penetrates the fixing portion 20c along its radial direction. The front end portion of the fixing member 23 inserted into the threaded hole 24 contacts the shaft 19.

[0049] The outer ring 21 is made of, for example, a resin such as PEEK or ceramic, but the material of the outer ring 21 is not limited to the present embodiment. The outer ring 21 has an inner peripheral surface 21a and an outer peripheral surface 21b. The inner peripheral surface 21a is arranged in a manner opposite to the outer peripheral surface 20b of the inner ring 20. The inner peripheral surface 21a constitutes a raceway surface on which the rolling element 22 can roll in contact. The inner peripheral surface 21a is configured in a spherical shape, and its curvature center coincides with the center of the bearing 16.

[0050] With the above-described structure, an annular rolling raceway 25 on which the rolling elements 22 can roll is formed between the inner peripheral surface 21 a of the outer ring 21 and the outer peripheral surface 20 b of the inner ring 20 .

[0051] The rolling element 22 is made of, for example, a resin such as PEEK or ceramic, but the material of the rolling element 22 is not limited to the present embodiment. The rolling element 22 is formed in a ball shape (spherical shape), but the shape of the rolling element 22 is not limited to the present embodiment. For example, the rolling element 22 may also be formed in a cylindrical shape, a conical shape, or a needle shape. Examples of the bearing 16 using such a rolling element 22 include a tapered roller bearing, a cylindrical roller bearing, and a needle roller bearing.

[0052] like Figure 3 As shown in FIG. 1 , the plurality of rolling elements 22 are arranged at predetermined intervals along the rolling track 25. The plurality of rolling elements 22 are held by a retainer (not shown) in such a manner as to maintain a constant interval. Figure 2 as well as Figure 4 As shown, the plurality of rolling elements 22 arranged along the rolling track 25 are arranged in two rows. That is, the plurality of rolling elements 22 include rolling elements 22a arranged along the first row and rolling elements 22b arranged along the second row.

[0053] like Figure 2 as well as Figure 4 As shown, each of the transport devices 4 a and 4 b includes a housing 26 that accommodates a portion of the shaft 19 and the bearing 16 , and the lubricating device 17 includes a supply path 27 that supplies the lubricating fluid LF to the housing 26 and a discharge path 28 that discharges the lubricating fluid LF from the housing 26 .

[0054] The housing 26 is made of resin, for example, but the material of the housing 26 is not limited to the present embodiment. The housing 26 has a housing chamber 26 a that houses a portion of the shaft 19 and the bearing 16 therein.

[0055] like Figure 2 as well as Figure 4 As shown, the accommodation chamber 26a includes: side wall portions 29a, 29b; a support portion 30 that supports the bearing 16; a supply port 31 that is connected to the supply path 27; a storage portion 32 that stores the lubricating fluid LF supplied from the supply path 27; and a discharge port 33 that is connected to the discharge path 28.

[0056] The side wall portions 29a and 29b include a first side wall portion 29a located on the supply port 31 side and the storage portion 32 side, and a second side wall portion 29b located on the discharge port 33 side. Each of the side wall portions 29a and 29b has an insertion hole 29c for inserting the shaft 19. The insertion hole 29c has a cross-sectional shape similar to that of the shaft 19 and is configured to be slightly larger than the shaft 19.

[0057] The support portion 30 is formed in a part of the accommodation chamber 26a between the supply port 31 and the discharge port 33. The support portion 30 has a support surface 30a in contact with the outer ring 21 of the bearing 16. The support surface 30a is in contact with the outer peripheral surface 21b of the outer ring 21 over the entire circumference.

[0058] The supply port 31 is an opening or a through hole formed in the bottom of the storage chamber 26a, specifically, the bottom of the reservoir 32. The opening diameter D1 of the supply port 31 is preferably, for example, 0.1 to 5 mm.

[0059] like Figure 2 as well as Figure 4 As shown, the reservoir 32 has a barrier 34 that allows the lubricating fluid LF to overflow toward the bearing 16 .

[0060] The stopper 34 is a wall portion that protrudes upward from the bottom of the receiving chamber 26a. Figure 4 As shown, the blocking member 34 includes: a first side surface 34 a facing the first side wall portion 29 a of the accommodation chamber 26 a ; a second side surface 34 b located on the opposite side of the first side surface 34 a ; and a guide surface 34 c that guides the lubricating fluid LF toward the bearing 16 .

[0061] like Figure 4 As shown, the first side surface 34a is formed substantially parallel to the first side wall portion 29a at a position separated from the first side wall portion 29a of the accommodation chamber 26a. With this structure, a space capable of storing the lubricating fluid LF is formed between the first side surface 34a and the first side wall portion 29a of the accommodation chamber 26a.

[0062] The second side surface 34b contacts the side surface of the outer ring 21 of the bearing 16. That is, the second side surface 34b functions as a positioning portion for positioning the bearing 16.

[0063] like Figure 4 As shown, the guide surface 34c includes a first guide surface 34c1 and a second guide surface 34c2. The first guide surface 34c1 and the second guide surface 34c2 are formed of flat surfaces, but are not limited thereto and may also be formed of curved surfaces. In addition, the guide surface 34c may also be formed of one curved surface or one flat surface.

[0064] The first guide surface 34c1 is connected to the first side surface 34a and the second guide surface 34c2. The first guide surface 34c1 is located at the highest position in the stopper 34 and constitutes the top of the stopper 34. The first guide surface 34c1 is located at a position higher than the position of the inner circumferential surface 21a of the outer ring 21 in the lowermost portion 25a of the rolling track 25. Therefore, the first guide surface 34c1 is located at a position higher than the lower end of the rolling element 22 passing through the lowermost portion 25a of the rolling track 25.

[0065] The second guide surface 34c2 is connected to the first guide surface 34c1 and the second side surface 34b. The second guide surface 34c2 is composed of an inclined surface that gradually inclines downward as it moves from the first side surface 34a to the second side surface 34b. Due to the second guide surface 34c2, when the stopper 34 collides with the rolling element 22a, it is possible to prevent the rolling element 22a from being damaged.

[0066] The discharge port 33 is an opening or through hole formed at the bottom of the storage chamber 26a at a position separated from the supply port 31 along the longitudinal direction of the shaft 19. The opening diameter D2 of the discharge port 33 is preferably larger than the opening diameter D1 of the supply port 31. The opening diameter D2 of the discharge port 33 is preferably 0.2 to 7 mm, for example.

[0067] like Figure 2 as well as Figure 4 As shown, the fixing portion 20c of the inner ring 20 of the bearing 16 is arranged above the discharge port 33. In this way, by providing the fixing portion 20c of the inner ring 20 on the discharge port 33 side instead of the supply port 31 side or the storage portion 32 side, it is possible to ensure a larger storage space for the lubricating fluid LF in the storage portion 32 and a larger flow path for the lubricating fluid LF.

[0068] like Figure 2 as well as Figure 4 As shown in FIG. 1 , the shaft 19 supported by the bearing 16 is inclined downward from the supply port 31 of the storage chamber 26a toward the discharge port 33. Therefore, the portion of the shaft 19 inserted into the insertion hole 29c of the first side wall portion 29a of the housing 26 is located at a higher position than the portion inserted into the insertion hole 29c of the second side wall portion 29b. It should be noted that the housing 26 is arranged in an inclined manner corresponding to the inclination of the shaft 19. As a result, the insertion hole 29c of the first side wall portion 29a of the storage chamber 26a is arranged at a higher position than the insertion hole 29c of the second side wall portion 29b.

[0069] like Figure 2 As shown, the supply path 27 includes a tank 35 for storing the lubricating fluid LF, a pump 36, a filter 37, and a flow meter 38. The tank 35 is configured to recover the lubricating fluid LF flowing in the discharge path 28. The pump 36 is configured to pressurize the lubricating fluid LF stored in the tank 35 to the storage chamber 26a of the housing 26. The filter 37 is provided on the downstream side of the pump 36 and can recover foreign matter contained in the lubricating fluid LF. The flow meter 38 is arranged on the downstream side of the filter 37, but the position of the flow meter 38 is not limited to this embodiment.

[0070] like Figure 2As shown, the discharge path 28 is provided with a gas-liquid separation tank 39 and a suction device 40. The gas-liquid separation tank 39 is used to separate the lubricating liquid LF and the gas discharged from the storage chamber 26a. The gas-liquid separation tank 39 is provided with an exhaust portion 41 and a drain portion 42. The exhaust portion 41 is connected to the suction device 40. The drain portion 42 is arranged above the tank 35 in such a manner that the lubricating liquid LF flows toward the tank 35 of the supply path 27. The suction device 40 is used to suck the gas in the storage chamber 26a through the discharge path 28.

[0071] With the above configuration, the lubricating device 17 can circulate and supply the lubricating fluid LF to the bearing 16 by sending the lubricating fluid LF returned from the drain portion 42 of the discharge passage 28 to the tank 35 from the supply passage 27 to the storage chamber 26 a .

[0072] Next, a method for manufacturing a glass plate G using the manufacturing apparatus 1 having the above-mentioned structure will be described. Figure 5 As shown in FIG. 1 , the method includes a processing step S1, a cleaning step S2, and a drying step S3. In addition, the method includes a conveying step of conveying the glass plate G by using conveying devices 4a and 4b (see FIG. 1 ). Figure 1 ).

[0073] Processing step S1 is a manufacturing-related processing step, for example, a process of processing the end face of the glass plate G using a grindstone, a process of grinding the surface of the glass plate G, and a process of roughening the surface of the glass plate G belong to processing step S1. In the present method, as a pre-process of processing step S1, a cutting step (manufacturing-related processing step) of cutting the glass plate G of a desired size from the original glass plate may also be provided.

[0074] The cleaning step S2 is a manufacturing-related processing step of the glass plate G after the cleaning processing step S1. In the cleaning step S2, while the glass plate G is conveyed along the conveying direction X by the first conveying device 4a, the cleaning liquid 9 is supplied to the surfaces Ga and Gb of the glass plate G by the first supply device 7 of the first cleaning device 5. Thereafter, the surfaces Ga and Gb of the glass plate G are wiped and cleaned by the cleaning tool 8 of the first cleaning device 5.

[0075] Then, the glass plate G conveyed by the first conveying device 4a arrives at the second cleaning device 6. In the second cleaning device 6, the second supply device 11 supplies the rinse liquid 10 to the surfaces Ga and Gb of the conveyed glass plate G, thereby rinsing and cleaning the glass plate G. Then, the first conveying device 4a conveys the glass plate G to the drying unit 3.

[0076] The drying step S3 is a manufacturing-related processing step for drying the glass sheet G after the cleaning step S2. In the drying step S3, while the glass sheet G is conveyed by the second conveying device 4b, the gas 12 is blown to the glass sheet G from the first air knife 13 (first drying step). As a result, the rinse liquid 10 remaining on the surfaces Ga and Gb of the glass sheet G is removed.

[0077] Thereafter, the gas 12 is blown from the second air knife 14 to the glass sheet G that has passed through the first air knife 13 and reached the second air knife 14 (second drying step). Thus, the surfaces Ga and Gb of the glass sheet G can be dried.

[0078] In the conveying step, the first conveying device 4a and the second conveying device 4b rotate the conveying rollers 15 using the driving device to convey the glass sheet G in the conveying direction X. In addition to this operation, the conveying step includes a supplying step of supplying the lubricating fluid LF to the bearing 16 accommodated in the accommodation chamber 26a.

[0079] In the supply process, the lubricating device 17 delivers the lubricating fluid LF contained in the tank 35 to the storage chamber 26a using the pump 36 of the supply passage 27. Thus, the lubricating fluid LF is supplied to the reservoir 32 through the supply port 31 of the storage chamber 26a. In the supply process, the flow rate of the lubricating fluid LF flowing in the supply passage 27 is measured by a flow meter, and the supply amount of the lubricating fluid LF supplied to the storage chamber 26a is managed.

[0080] like Figure 4 As shown, in the supply process, the lubricating liquid LF supplied from the supply port 31 is stored in the storage portion 32. The lubricating liquid LF supplied to the storage portion 32 passes over the first side surface 34a of the stopper 34, flows on the guide surface 34c, and passes through the bearing 16. Thus, the lubricating liquid LF is supplied to the rolling element 22 passing through the lowermost portion 25a of the rolling track 25 of the bearing 16.

[0081] It is preferred that the height H2 of the liquid surface of the lubricating fluid LF is greater than or equal to a predetermined reference height H1 when the lubricating fluid LF passes through the bearing 16. The reference height H1 of the liquid surface of the lubricating fluid LF is defined as follows. That is, the contact position where the rolling element 22 located at the bottom 25a of the rolling track 25 contacts the inner peripheral surface 21a of the outer ring 21 is set as the reference position RP. The height H1 from the reference position RP to a length equivalent to 70% of the diameter of the rolling element 22 is set as the reference height.

[0082] The height H2 of the lubricating fluid LF passing through the bearing 16 may be the same as the height of the upper end of the rolling element 22 passing through the lowermost portion 25a of the rolling track 25. However, the height H2 of the lubricating fluid LF passing through the bearing 16 is preferably lower than the insertion hole 29c of the shaft 19 formed in the first side wall portion 29a of the accommodation chamber 26a so that the lubricating fluid LF does not overflow from the insertion hole 29c.

[0083] The lubricating fluid LF that has passed through the bearing 16 is discharged to the outside of the accommodation chamber 26a through the discharge port 33. At this time, the gas (air) present in the accommodation chamber 26a is also discharged from the discharge port 33 by the suction device 40 together with the lubricating fluid LF.

[0084] The gas and lubricating liquid LF discharged from the storage chamber 26a reach the gas-liquid separation tank 39 through the discharge path 28. The gas-liquid separation tank 39 separates the gas and the lubricating liquid LF, and discharges the separated gas and lubricating liquid LF from the exhaust portion 41 and the drain portion 42. The separated lubricating liquid LF falls from the drain portion 42 to the tank 35. The lubricating liquid LF recovered in the tank 35 is supplied again to the storage chamber 26a through the supply path 27.

[0085] During the conveying process, dust is generated due to the wear of the bearing 16 caused by the rotation of the shaft 19. As described above, the lubricating fluid LF and the gas are discharged from the storage chamber 26a through the discharge passage 28, so that the dust can be discharged from the storage chamber 26a. It should be noted that foreign matter such as dust contained in the lubricating fluid LF recovered from the drain portion 42 to the tank 35 is removed by the filter 37 of the supply passage 27.

[0086] According to the manufacturing device 1 and manufacturing method of the glass plate G of the present embodiment described above, in the supplying step, the lubricating liquid LF is supplied to the rolling element 22 passing through the lowermost portion 25a of the rolling track 25 in the bearing 16 to a height H2 that is higher than the reference height H1 (a height corresponding to a length of 70% of the diameter of the rolling element 22), thereby supplying an appropriate amount of the lubricating liquid LF to the bearing 16. In addition, by causing the lubricating liquid LF to overflow from the stopper 34 of the reservoir 32, an appropriate amount of the lubricating liquid LF can be supplied to the bearing 16. Thus, the wear of the inner ring 20, the outer ring 21, and the rolling element 22 in the bearing 16 can be suppressed. Therefore, by extending the life of the bearing 16, the manufacturing cost of the glass plate G can be minimized.

[0087] It should be noted that the present invention is not limited to the configuration of the above-described embodiment, nor is it limited to the above-described effects. The present invention can be modified in various ways without departing from the gist of the present invention.

[0088] In the above-mentioned embodiment, the manufacturing device 1 including the bearing 16 supporting the shaft 19 in an inclined posture is exemplified, but the present invention is not limited to this structure. The manufacturing device 1 may include the bearing 16 supporting the shaft 19 in a horizontal posture.

[0089] In the above embodiment, the conveying devices 4a and 4b are provided with the shaft 19 tilted downward from the supply port 31 of the storage chamber 26a toward the discharge port 33, but the present invention is not limited to this structure. The shaft 19 of the conveying devices 4a and 4b may also tilt downward from the discharge port 33 toward the supply port 31.

[0090] In the above-mentioned embodiment, the utility model is applied to the cleaning section 2 (cleaning process S2) and the drying section 3 (drying process S3), but the utility model is not limited to this structure. Dust generation is likely to become a problem, and the dust generation prevention effect brought by the lubrication device becomes significant, so it is preferred to apply the utility model to the drying section 3 (drying process S3).

[0091] Description of Reference Numerals

[0092] 1. Manufacturing device

[0093] 4a First transport device

[0094] 4b Second transport device

[0095] 16 bearings

[0096] 17 Lubrication device

[0097] 19 Axis

[0098] 20 Inner Circle

[0099] 20c fixed part

[0100] 21 Outer ring

[0101] 22 rolling element

[0102] 25 rolling tracks

[0103] 25a The bottom of the rolling track

[0104] Containment Chamber 26a

[0105] 27 Supply Road

[0106] 28 discharge route

[0107] 31 Supply port

[0108] 32 Storage Department

[0109] 33 Exhaust

[0110] 34 blocking parts

[0111] G Glass Plate(Glass Products)

[0112] H1 reference height

[0113] H2 Height of lubricating fluid supplied to the bearing

[0114] LF lubricant.

Claims

1. A glass product manufacturing device, comprising a conveying device for conveying the glass product, It is characterized in that The transport device includes a transport shaft, a bearing supporting the shaft, a lubricating device supplying lubricating fluid to the bearing, and a housing chamber housing the bearing. The bearing includes an inner ring for supporting the shaft, an outer ring arranged outside the inner ring, and a rolling element rolling along a rolling track formed between the inner ring and the outer ring. The lubricating device includes a supply path for supplying the lubricating fluid to the accommodation chamber and a discharge path for discharging the lubricating fluid from the accommodation chamber. The storage chamber includes a storage portion for storing the lubricating fluid supplied from the supply path. The storage portion has a blocking member that allows the lubricating fluid to overflow toward the bearing. The stopper is configured to be higher than the position of the lower end portion of the rolling element passing through the lowermost portion of the rolling track.

2. The glass product manufacturing device according to claim 1, characterized in that: The storage chamber includes a supply port connected to the supply path and a discharge port connected to the discharge path. The inner ring includes a fixing portion for fixing the inner ring to the shaft. The fixing portion is disposed on the discharge port side.

3. The manufacturing device of glass products according to claim 2, characterized in that: The axis is inclined relative to the horizontal.

4. The manufacturing device of glass products according to claim 3, characterized in that: The shaft is inclined downward from the supply port toward the discharge port.

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