A roller bearing assembly device and edge drawing machine for special glass production

Abstract

The present invention discloses a roller bearing assembly device and a side edge machine for producing special glass, and relates to the technical field of side edge machines. The device comprises a side edge machine rod, a side edge machine water cooling jacket, and a bearing assembly. One end of the side edge machine rod is used to connect with the side edge machine head, and the side edge machine rod can rotate; the side edge machine water cooling jacket is arranged on the side edge machine rod, and a mounting groove is arranged at one end close to the side edge machine rod; the bearing assembly is arranged in the mounting groove, and the bearing assembly can support the rotation of the side edge machine rod; cooling water can be introduced into the side edge machine rod and the side edge machine water cooling jacket to cool the bearing assembly. The technical solution of the present invention aims to solve the problem that when the existing side edge machine rod rotates, the graphite sliding bearing and the side edge machine rod will wear, resulting in reduced precision, inability to operate stably, and inability to meet the production needs of ultra-thin glass.

Description

Technical Field

[0001] The invention relates to the technical field of edge drawing machines, and in particular to a roller bearing assembly device and an edge drawing machine for producing special glass. Background Art

[0002] In float glass production, the edge drawing machine is a key equipment in the float glass forming process, and the edge drawing machine is often required to have a precise structure and stable operation.

[0003] In the edge drawing machine in the prior art, a edge drawing head is provided at one end of the edge drawing machine rod, and a portion of the edge drawing machine rod away from the edge drawing machine head is provided with a edge drawing machine water cooling jacket, and an installation groove is provided between the edge drawing machine water cooling jacket and the edge drawing machine rod, and a graphite sliding bearing made of graphite material is provided in the installation groove. The edge drawing machine rod rotates on the graphite sliding bearing in a high temperature environment, and the graphite material hardens under high temperature conditions. After a period of operation, the graphite sliding bearing and the edge drawing machine rod will be worn, so that the gap between the graphite sliding bearing and the edge drawing machine rod becomes larger, and the vibration amplitude of the edge drawing machine rod becomes larger, resulting in reduced accuracy, and the wear powder of the graphite material remains between the graphite sliding bearing and the edge drawing machine rod, resulting in increased rotation resistance of the edge drawing machine rod, causing the edge drawing machine rod to vibrate and move at uneven speed during operation, and cannot operate stably, and cannot meet the production needs of special glass, especially ultra-thin glass in special glass. Summary of the invention

[0004] The main purpose of the present invention is to provide a roller bearing combination device and a side drawing machine for the production of special glass, aiming to solve the problem that when the existing side drawing machine rod rotates, both the graphite sliding bearing and the side drawing machine rod will be worn, so that the gap between the graphite sliding bearing and the side drawing machine rod becomes larger, and the vibration amplitude of the side drawing machine rod becomes larger, resulting in reduced accuracy and inability to operate stably, and cannot meet the production needs of special glass, especially ultra-thin glass among special glasses.

[0005] To achieve the above object, the present invention provides a roller bearing assembly device for special glass production, comprising: a side drawing machine rod, one end of which is used to connect with a side drawing machine head, and the side drawing machine rod can rotate;

[0006] A water cooling jacket for the edge drawing machine, wherein the water cooling jacket for the edge drawing machine is arranged on the edge drawing machine rod, and an installation groove is arranged at one end of the water cooling jacket for the edge drawing machine close to the edge drawing machine rod;

[0007] A bearing assembly, the bearing assembly is arranged in the mounting groove, and the bearing assembly can support the rotation of the edge drawing machine rod;

[0008] Wherein, cooling water can be introduced into the edge drawing machine rod and the edge drawing machine water cooling jacket to cool the bearing assembly.

[0009] In one embodiment, the bearing assembly comprises:

[0010] A roller bearing, wherein the roller bearing is sleeved on the edge drawing machine rod, and the roller bearing can support the edge drawing machine rod to rotate;

[0011] A heat-insulating ring is sleeved on the edge-pulling machine rod, and the heat-insulating ring can isolate the heat from the high-temperature environment of the tin bath.

[0012] In one embodiment, the bearing assembly further includes a separator ring, which is disposed in the mounting groove, one side of the separator ring is in contact with the roller bearing, and the other side of the separator ring is in contact with the thermal insulation ring, and the separator ring can separate the roller bearing from the thermal insulation ring.

[0013] In one embodiment, the roller bearing is a standard roller bearing, and high temperature resistant lubricating grease is used inside the roller bearing; and / or the heat insulation ring is a graphite ring; and / or the separation ring is a thin-walled metal sleeve.

[0014] In one embodiment, the outer diameter of the separation ring contacts the mounting groove, and the separation ring can conduct the heat of the insulation ring to the water cooling jacket of the edge drawing machine.

[0015] In one embodiment, the mounting groove is arranged on a side of the water cooling jacket of the edge drawing machine close to the edge drawing machine head, the roller bearing, the separator ring and the insulation ring are axially positioned in the mounting groove in sequence, and the insulation ring is arranged on a side of the mounting groove close to the edge drawing machine head.

[0016] In one embodiment, the roller bearing comprises an inner ring and an outer ring, the inner ring is in contact with the edge drawing machine rod, the edge drawing machine rod can rotate synchronously with the inner ring, and the outer ring is in contact with the mounting groove.

[0017] In one embodiment, the inner hole of the thermal insulation ring is clearance-matched with the edge drawing machine rod, and the outer diameter of the thermal insulation ring is in contact with the mounting groove.

[0018] In one embodiment, a pressure cover is provided on one side of the edge drawing machine water cooling jacket close to the edge drawing machine head, one side of the insulation ring is in contact with the pressure cover, and the pressure cover is fixed to the edge drawing machine water cooling jacket by bolts.

[0019] The present invention also provides a side-drawing machine, comprising the roller bearing assembly device for special glass production as described above, and the side-drawing machine also includes a transmission pulley, and the transmission pulley can drive the side-drawing machine rod to rotate.

[0020] The technical solution of the present invention eliminates the graphite sliding bearing in the prior art and adopts a new type of roller bearing to replace the graphite sliding bearing. Roller bearings, insulation rings and separator rings are arranged in the mounting groove on the water-cooling jacket of the edge drawing machine. The edge drawing machine rod and the inner ring of the roller bearing can move synchronously. The structure moves under the protection of the water-cooling jacket of the edge drawing machine. The roller bearing has the advantages of high temperature resistance and low friction resistance. The graphite sliding bearing is eliminated, and there will be no wear caused by the hardening of the graphite sliding bearing under high temperature conditions, which will increase the rotation resistance of the edge drawing machine rod and reduce the accuracy of the edge drawing machine. The use of roller bearings instead of graphite sliding bearings can make the overall operation of the edge drawing machine more stable, and can ensure the long-term high-speed and stable operation of the edge drawing machine head, which is suitable for the production of special glass, especially ultra-thin glass among special glasses. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0022] Figure 1 It is a structural schematic diagram of an embodiment of a roller bearing assembly device for special glass production of the present invention;

[0023] Figure 2 It is a structural schematic diagram of an embodiment of an edge drawing machine of the present invention;

[0024] Figure 3 It is a partially enlarged cross-sectional view of a roller bearing in a roller bearing assembly device for producing special glass according to the present invention.

[0025] Description of Figure Numbers:

[0026]

[0027]

[0028] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. It should be noted that all directional indications in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0030] In addition, the descriptions of "first", "second", etc. in the present invention are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0031] In the prior art, in the production of float glass, the molten glass flows into the surface of the tin bath through the runner lip brick, and the glass ribbon with a certain viscosity floating on the tin bath surface is pulled forward by the edge drawing machine head at the front end of the edge drawing machine. The thickness of the glass ribbon and the stable width of the glass ribbon can be controlled by adjusting the linear speed of the outer circle of the edge drawing machine head, the horizontal swing angle of the edge drawing machine head, the plane inclination angle, the pressing depth, etc., to form and cool the glass substrate. Among them, the edge drawing machine equipment is the key equipment in the float glass forming process, and the edge drawing machine is required to be precise and stable when manufacturing float glass. Therefore, the stability of the edge drawing machine head is very important, especially in the production of ultra-thin float glass. The stability of the edge drawing machine head is even more important. The current edge drawing machine rod bearing is generally in the high temperature environment of the tin bath (600℃--1000℃). The original design of the tin bath edge drawing machine uses a self-aligning roller bearing to support the edge drawing machine rod in the normal temperature zone outside the tin bath. The edge drawing machine rod bearing in the tin bath uses a high-purity dense graphite sliding bearing. The edge drawing machine rod rotates in the high-temperature graphite ring hole. The graphite hardens under high temperature. After a period of operation, the graphite ring and the edge drawing machine rod will be worn, the dimensional accuracy will be reduced, and the wear powder will remain in the hole, increasing the sliding resistance of the edge drawing machine rod, causing the edge drawing machine rod to vibrate and uneven speed. Because the production of 2--24mm thick glass has regular process maintenance time to facilitate the maintenance of the edge drawing machine, it can basically meet the general float glass production. However, if ultra-thin float glass is produced, especially when electronic glass is produced by float method, the rotation speed of the edge drawing machine rod will be accelerated. The graphite ring structure at the front end of the edge drawing machine rod will have a large rotation jump after a period of use. The fluctuation of running speed has a great impact on the production of electronic grade glass, which will affect the glass thickness difference, glass flatness, surface ripples, etc., and cause the glass ribbon to break in severe cases. Therefore, for the production of electronic ultra-thin glass substrates using float glass, high-precision and stable edge drawing machine equipment is required.

[0032] In the edge drawing machine in the prior art, a edge drawing head is provided at one end of the edge drawing machine rod, and a portion of the edge drawing machine rod away from the edge drawing machine head is provided with a edge drawing machine water cooling jacket, and an installation groove is provided between the edge drawing machine water cooling jacket and the edge drawing machine rod, and a graphite sliding bearing made of graphite material is provided in the installation groove. The edge drawing machine rod rotates in the graphite sliding bearing under a high temperature environment. The graphite material hardens under high temperature conditions. After a period of operation, the graphite sliding bearing and the edge drawing machine rod will be worn, so that the gap between the graphite sliding bearing and the edge drawing machine rod becomes larger, and the vibration amplitude of the edge drawing machine rod becomes larger, resulting in reduced accuracy, and the wear powder of the graphite material remains between the graphite sliding bearing and the edge drawing machine rod, resulting in increased rotation resistance of the edge drawing machine rod, causing the edge drawing machine rod to vibrate and move at uneven speed during operation, and cannot operate stably, and cannot meet the production needs of special glass, especially ultra-thin glass among special glasses.

[0033] In order to solve the above problems, the present invention provides a roller bearing assembly device and an edge drawing machine for producing special glass.

[0034] See also Figures 1 to 3 In this embodiment, the roller bearing combination device includes a side rolling machine rod 10, a side rolling machine water cooling jacket 20 and a bearing assembly, one end of the side rolling machine rod 10 is used to connect with the side rolling machine head 60, and the side rolling machine rod 10 can rotate; the side rolling machine water cooling jacket 20 is arranged on the side rolling machine rod 10, and the side rolling machine water cooling jacket 20 is provided with a mounting groove 210 at one end close to the side rolling machine rod 10; the bearing assembly is arranged in the mounting groove 210, and the bearing assembly can support the rotation of the side rolling machine rod 10; wherein, cooling water can be passed into the side rolling machine rod 10 and the side rolling machine water cooling jacket 20 for cooling the bearing assembly. In one embodiment, the bearing assembly includes: a roller bearing 110, wherein the roller bearing 110 is sleeved on the edge drawing machine rod 10, and the roller bearing 110 can support the rotation of the edge drawing machine rod 10; and a heat insulation ring 120, wherein the heat insulation ring 120 is sleeved on the edge drawing machine rod 10, and the heat insulation ring 120 can isolate the heat from the high temperature environment of the tin bath.

[0035] Specifically, the roller bearing 110 and the heat insulating ring 120 are both arranged in the installation groove 210. The roller bearing 110 adopts a standard roller bearing 110 and is arranged at the innermost end of the installation groove 210. The inner ring of the roller bearing 110 and the water cooling jacket 20 of the edge drawing machine adopt transition tolerance contact matching for easy installation. The outer ring of the roller bearing 110 contacts the water cooling jacket 20 of the edge drawing machine at one axial end and contacts the heat insulating ring 120 at the other end. The outer ring radially matches the inner wall of the water cooling jacket 20 of the edge drawing machine with transition tolerance, which can ensure the cooling effect of the water cooling jacket 20 of the edge drawing machine on the roller bearing 110. The temperature of the roller bearing 110 is not higher than 60°C. The inner ring of the roller bearing 110 supports the edge drawing machine rod 10 and rotates the bearing without friction. At the same time, the cooling circulating water inside the edge drawing machine rod 10 has a cooling effect on the inner ring of the bearing. The roller bearing 110 is of model 6010, which is of general precision grade. If the internal clearance of the bearing is too high, the metal will expand unevenly when the temperature changes, and it is easy to get stuck. The rotation precision is much higher than that of the graphite bearing. The outer dimensions of the roller bearing 110 are φ80xφ50x16mm (outer diameter x inner diameter x thickness). The internal grease of the bearing is replaced with Great Wall high-temperature lubricating grease (7014-1) by professional methods. The roller bearing 110 has high rotation precision, which can improve the rotation precision of the edge drawing machine 1, and the friction resistance is small. The heat insulation ring 120 can be a graphite ring, which does not need to rotate synchronously with the edge drawing machine rod 10, and there is a high-temperature resistant lubricant between the graphite ring and the edge drawing machine rod 10, which can ensure that the graphite ring plays a heat insulation role. The use of graphite rings also makes processing more convenient and reasonable, and can protect the edge drawing machine rod 10.

[0036] The present invention uses a roller bearing 110 and a heat insulating ring 120 as a combined bearing. The roller bearing 110 replaces the graphite sliding bearing in the prior art. The roller bearing 110 is lubricated with high-temperature grease, which improves the accuracy, reduces the resistance, and increases the service life to more than 2 years. The running vibration of the edge drawing machine head 60 can be maintained at <0.1mm for a long time. The edge drawing machine rod 10 runs more smoothly, the maintenance cycle of the edge drawing machine 1 is extended, the labor intensity is reduced, and the operating cost is reduced. It plays an important role in the production of special glass with higher quality requirements, especially ultra-thin glass.

[0037] In one embodiment, the bearing assembly further includes a separator ring 130 , one side of the separator ring 130 contacts the roller bearing 110 , and the other side of the separator ring 130 contacts the thermal insulation ring 120 . The separator ring 130 can separate the roller bearing 110 from the thermal insulation ring 120 .

[0038] Specifically, the separator ring 130 is arranged between the roller bearing 110 and the heat insulation ring 120, and plays a supporting and heat insulation role. The outer ring surface of the roller bearing 110 is in close contact with the water cooling jacket 20 of the edge drawing machine. The separator ring 130 adopts a thin-walled metal sleeve structure, and the length is 4 times the wall thickness. The heat transferred from the heat insulation ring 120 can be conducted to the water cooling jacket 20 of the edge drawing machine, so as to prevent the heat from being transferred to the roller bearing 110. The material of the separator ring 130 is 45# steel, and it is finely processed. The outer dimensions of the separator ring 130 are φ80xφ73x14mm (outer diameter x inner diameter x length). An insulation ring 120 is arranged at the other end of the separation ring 130, and the other end face of the insulation ring 120 is flush with the end face of the edge drawing machine water cooling jacket 20, and the outer ring of the insulation ring 120 is in contact with the edge drawing machine water cooling jacket 20. The insulation ring 120 and the edge drawing machine rod 10 are matched with a small gap (single-side gap 0.1mm), which can isolate external heat without increasing the rotation resistance of the edge drawing machine rod 10. One end of the insulation ring 120 is exposed to the high-temperature protective gas environment of the tin bath, and at the same time, the edge drawing machine water cooling jacket 20 and the edge drawing machine rod 10 have the effect of cooling the insulation ring 120.

[0039] In one embodiment, the roller bearing 110 is a standard roller bearing 110, and high temperature resistant lubricating grease is used inside the roller bearing 110; and / or the heat insulation ring 120 is a graphite ring; and / or the separation ring 130 is a thin-walled metal sleeve.

[0040] In one embodiment, the outer diameter of the separation ring 130 contacts the installation groove 210 , and the separation ring 130 can conduct the heat of the insulation ring 120 to the water cooling jacket 20 of the edge drawing machine.

[0041] Specifically, the present application combines a roller bearing 110 with a heat-insulating ring 120 to form a bearing. The roller bearing 110 replaces the graphite sliding bearing in the prior art, and the roller bearing 110 can be lubricated with high-temperature grease. The heat-insulating ring 120 only plays a protective role, which overcomes the poor lubrication of the graphite sliding bearing in a high-temperature environment. The new combination bearing is wear-free, which greatly improves the service life of the edge drawing machine 1. After the optimized design, the bearing accuracy is improved, the resistance is reduced, and the service life is long. The roller bearing combination device in the present application is installed on the edge drawing machine 1, which greatly improves the performance and practical benefits of the edge drawing machine 1; by replacing the original graphite bearing of the edge drawing machine 1 with a roller bearing 110, the edge drawing machine rod 10 runs more smoothly and has a longer service life, reducing the maintenance frequency of the edge drawing machine 1, which is of great help to the production of ultra-thin glass and can improve product quality.

[0042] In one embodiment, the mounting groove 210 is arranged on a side of the edge drawing machine water cooling jacket 20 close to the edge drawing machine head 60, the roller bearing 110, the separator ring 130 and the thermal insulation ring 120 are axially positioned in the mounting groove 210 in sequence, and the thermal insulation ring 120 is arranged on a side of the mounting groove 210 close to the edge drawing machine head 60.

[0043] Specifically, the mounting groove 210 is arranged between the edge drawing machine water cooling jacket 20 and the edge drawing machine rod 10, and the mounting groove 210 is sleeved on the edge drawing machine rod 10 and contacts the edge drawing machine water cooling jacket 20, so that the roller bearing assembly device is arranged in the mounting groove 210 at the bottom of the edge drawing machine water cooling jacket 20, and the roller bearing 110, the separation ring 130, and the heat insulation ring 120 are axially arranged from the inside to the outside, wherein the edge drawing machine rod 10 is radially fixed on the inner ring of the roller bearing 110, and the edge drawing machine rod 10 and the inner ring of the roller bearing 110 can rotate together, and the heat insulation ring 120 is arranged on the mounting groove 210, and the heat insulation ring 120 is close to the edge drawing machine head 60.

[0044] In one embodiment, the roller bearing 110 includes an inner ring and an outer ring, the inner ring is in contact with the edge drawing machine rod 10 , the edge drawing machine rod 10 can rotate synchronously with the inner ring, and the outer ring is in contact with the mounting groove 210 .

[0045] In one embodiment, the inner hole of the heat insulation ring 120 is clearance-matched with the edge drawing machine rod 10 , and the outer diameter of the heat insulation ring 120 is in contact with the installation groove 210 .

[0046] In one embodiment, a pressure cover 220 is provided on one side of the edge drawing machine water cooling jacket 20 close to the edge drawing machine head 60, one side of the insulation ring 120 is in contact with the pressure cover 220, and the pressure cover 220 is fixed to the edge drawing machine water cooling jacket 20 by bolts.

[0047] Specifically, the gland 220 is a stainless steel gland 220, and the end surface of the edge drawing machine water cooling jacket 20 has a screw hole. The gland 220 is fixed in the screw hole of the end surface of the edge drawing machine water cooling jacket 20 by six high temperature resistant bolts 2210, and the bolts 2210 are specifically fastening bolts 2210. The roller bearing 110, the separation ring 130, and the heat insulation ring 120 are axially positioned in the edge drawing machine water cooling jacket 20, and the stainless steel gland 220 and the stainless steel fastening bolts 2210 are made of 2Cr25Ni20 (GB / T 1221 1992). The external stainless steel gland 220 is connected to the screw hole at the end of the edge drawing machine water cooling jacket 20 by the stainless steel fastening bolts 2210 to fix the heat insulation ring 120.

[0048] Specifically, the use of roller bearings 110 enables the inner ring of the roller bearings 110 to rotate synchronously with the edge drawing machine rod 10, eliminating the graphite sliding bearings in the prior art, and preventing the increase in the hardness of graphite in a high temperature environment, the sliding performance is not as good as the sliding performance at room temperature, and the resistance to the rotation of the machine rod increases. Moreover, the graphite sliding bearing is a sliding friction. After a period of wear, the gap between the outer diameter of the edge drawing machine rod 10 and the inner hole of the graphite increases, and the contact between the graphite sliding bearing and the outer circle of the edge drawing machine rod 10 becomes elliptical. The longer the use time, the larger the gap, the greater the rotation jump of the machine rod, the lower the precision, and the glass forming quality is affected. The friction between the edge drawing machine rod 10 and the graphite sliding bearing will produce graphite dust, which stays in the gap. The dust hinders the stability of the rotation of the edge drawing machine rod 10, and the edge drawing machine rod 10 vibrates, creeps, etc., making the rotation speed of the edge drawing machine head 60 uneven, affecting the glass forming quality. The use of roller bearings 110 can effectively avoid problems and does not affect the quality of glass forming. The roller bearing 110 is disposed in the installation groove 210 at one end away from the pressure cover 220 and is in contact with the bottom surface of the installation groove 210 .

[0049] Specifically, the roller bearing 110 is arranged at one end of the mounting groove 210 away from the pressure cover 220, which can ensure that the roller bearing 110 is in the mounting groove 210, and avoid the roller bearing 110 only contacting one end of the edge drawing machine rod 10, so that the roller bearing 110 cannot well support the rotation of the edge drawing machine rod 10, and the rotation effect is not good. The roller bearing 110 is arranged at the bottom of the mounting groove 210, which can make the contact position of the roller bearing 110 and the edge drawing machine rod 10 closer to the middle of the edge drawing machine rod 10, so that the rotation effect is better, and the roller bearing 110 wears very slowly, does not need to be replaced frequently, reduces the labor intensity of manpower, and reduces the burden of maintenance work. When producing ultra-thin glass, when the edge drawing machine head 60 jumps, the teeth of the edge drawing machine head 60 are easy to penetrate the hot soft glass plate 30 to cause tin staining, causing the glass ribbon to move in a disorderly manner. Using the roller bearing 110 on the edge drawing machine 1 to cancel the original graphite sliding bearing can achieve the effect of not restricting the production of high-quality ultra-thin glass.

[0050] Preferably, the outer end surface of the mounting groove 210 close to the edge drawing head 60 and the side of the insulation ring 120 close to the pressure cover 220 are located on the same plane, and the mounting groove 210 has a screw hole, and the bolt 2210 on the pressure cover 220 can be inserted into the screw hole to connect the pressure cover 220 to the mounting groove 210.

[0051] Specifically, the installation steps of the roller bearing assembly device can be divided into: placing the edge drawing machine rod 10 without the edge drawing machine head 60 installed in the installation groove 210 of the edge drawing machine water cooling jacket 20; a motor is provided at one end of the edge drawing machine rod 10, and a roller bearing 110 is provided in this section, and a radially arranged bolt 2210 is fixed to the axial position of the edge drawing machine rod 10 on the inner ring of the roller bearing 110 at one end of the motor of the edge drawing machine rod 10; then, the roller bearing 110 is passed through the edge drawing machine rod 10 from the other end of the edge drawing machine rod 10, and the outer ring of the roller bearing 110 is installed to the bottom of the installation groove 210 of the water cooling jacket 20 of the edge drawing machine; and then the separator ring 130, the heat insulation ring 120, the pressure cover 220 and the bolt 2210 are installed in sequence.

[0052] Specifically, in the present application, the material of the heat insulation ring 120 is selected as graphite, and one axial end of the heat insulation ring 120 made of graphite is in contact with the separator ring 130, and the other end is in contact with the gland 220 made of stainless steel. The gland 220 made of stainless steel is fixed to the six screw holes on the end surface of the edge drawing machine water cooling jacket 20 through six fastening bolts 2210 made of high-temperature resistant stainless steel. The roller bearing 110, the separator ring 130 and the heat insulation ring 120 made of graphite are axially positioned in the mounting groove 210 of the edge drawing machine water cooling jacket 20. In the present application, the number of bolts 2210 is set to multiple, which can ensure that the gland 220 can be fully connected to the mounting groove more firmly. The outer ring of the graphite heat insulation ring 120 cooperates with the edge drawing machine water cooling jacket 20 and the edge drawing machine rod 10 with a small gap, which can isolate the external heat without increasing the rotation resistance of the edge drawing machine rod 10. One end of the graphite heat insulation ring 120 is exposed to the high temperature protective gas environment of the tin bath. At the same time, the edge drawing machine water cooling jacket 20 and the edge drawing machine rod 10 have a cooling effect on the graphite heat insulation ring 120. The graphite material is R8510, with a carbon content of >99.9%, a volume density of >1.80g / cm3, a flexural strength of >70Mpa, and a porosity of <5%.

[0053] The present invention also provides a side drawing machine 1, comprising the roller bearing assembly device for special glass production as described above.

[0054] Specifically, the edge drawing machine includes a transmission pulley 140, and the transmission pulley 140 provides power to drive the edge drawing machine rod 10 to rotate.

[0055] For the production of ultra-thin float glass, especially when using the float method to produce electronic glass, the rotation speed of the edge drawing machine rod 10 is accelerated. The graphite sliding bearing structure at the front end of the edge drawing machine rod 10 has a large rotation jump after being used for a period of time. The fluctuation of the running speed has a great impact on the production of electronic grade glass, which will affect the glass thickness difference, glass flatness, surface ripples, etc., and cause the glass ribbon to break in severe cases. Therefore, for the production of electronic ultra-thin glass substrates using float glass, a high-precision and stable edge drawing machine 1 equipment is required. In the present application, the graphite sliding bearing in the prior art is eliminated, and a combination of a roller bearing 110 and a heat insulating ring 120 is used to replace the graphite sliding bearing. The roller bearing 110, the heat insulating ring 120 and the separator ring 130 are arranged in the mounting groove 210 on the edge drawing machine water cooling jacket 20. The edge drawing machine rod 10 and the inner ring of the roller bearing 110 can move synchronously. The structure moves under the protection of the edge drawing machine water cooling jacket 20. The roller bearing 110 has the advantages of high temperature resistance and low friction resistance. The graphite sliding bearing is eliminated, and there will be no wear caused by the hardening of the graphite sliding bearing under high temperature conditions, which will increase the rotation resistance of the edge drawing machine rod 10 and reduce the accuracy of the edge drawing machine 1. The use of roller bearings 110 instead of graphite sliding bearings can make the overall operation of the edge drawing machine 1 more stable, and can ensure the long-term high-speed and stable operation of the edge drawing machine head 60 to meet the needs of ultra-thin glass production. It should be noted that in the present invention, the roller bearing assembly device can be applied to the production of electronic glass using the float process, and in other embodiments, the roller bearing assembly device can also be applied to other glass production, without limiting the application scenarios of the roller bearing assembly device.

[0056] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A roller bearing assembly for special glass production, characterized in that: include: A side drawing machine rod, one end of which is used to be connected to the side drawing machine head, and the side drawing machine rod is rotatable; A water cooling jacket for the edge drawing machine, wherein the water cooling jacket for the edge drawing machine is arranged on the edge drawing machine rod, and an installation groove is arranged at one end of the water cooling jacket for the edge drawing machine close to the edge drawing machine rod; A bearing assembly, the bearing assembly is arranged in the mounting groove, and the bearing assembly can support the rotation of the edge drawing machine rod; Wherein, cooling water can be passed into the side drawing machine rod and the side drawing machine water cooling jacket to cool the bearing assembly; The bearing assembly comprises: A roller bearing, wherein the roller bearing is sleeved on the edge drawing machine rod, and the roller bearing can support the edge drawing machine rod to rotate; A heat-insulating ring, which is sleeved on the edge drawing machine rod and can isolate the heat from the high-temperature environment of the tin bath; The bearing assembly further includes a separation ring, one side of which is in contact with the roller bearing, and the other side of which is in contact with the heat-isolating ring, and the separation ring is capable of separating the roller bearing from the heat-isolating ring.

2. The roller bearing assembly for special glass production according to claim 1, characterized in that: The roller bearing is a standard roller bearing, and high temperature resistant lubricating grease is used inside the roller bearing; and / or the heat insulation ring is a graphite ring; and / or the separation ring is a thin-walled metal sleeve.

3. The roller bearing assembly for special glass production according to claim 1, characterized in that: The outer diameter of the separation ring contacts the mounting groove, and the separation ring can conduct the heat of the insulation ring to the water cooling jacket of the edge drawing machine.

4. The roller bearing assembly for special glass production according to claim 2, characterized in that: The mounting groove is arranged on a side of the edge drawing machine water cooling jacket close to the edge drawing machine head, the roller bearing, the separator ring and the insulation ring are axially positioned in the mounting groove in sequence, and the insulation ring is arranged on a side of the mounting groove close to the edge drawing machine head.

5. The roller bearing assembly for special glass production according to claim 1, characterized in that: The roller bearing comprises an inner ring and an outer ring, wherein the inner ring contacts the edge drawing machine rod, the edge drawing machine rod can rotate synchronously with the inner ring, and the outer ring contacts the mounting groove.

6. The roller bearing assembly for special glass production according to claim 1, characterized in that: The inner hole of the heat-insulating ring is loosely matched with the edge drawing machine rod, and the outer diameter of the heat-insulating ring is in contact with the mounting groove.

7. The roller bearing assembly for special glass production according to claim 4, characterized in that: A pressure cover is arranged on one side of the edge drawing machine water cooling jacket close to the edge drawing machine head, one side of the heat insulation ring contacts the pressure cover, and the pressure cover is fixed to the edge drawing machine water cooling jacket by bolts.

8. A side edge stretching machine, characterized in that: It comprises a roller bearing assembly device for special glass production as described in any one of claims 1 to 7, wherein the edge drawing machine further comprises a transmission pulley, and the transmission pulley can drive the edge drawing machine rod to rotate.

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