Flange assembly, expanding and shrinking device and glass rolling system

Abstract

The utility model discloses a flange assembly, an expanding and shrinking device and a glass rolling system. The flange assembly comprises a guard brick and a protection piece. The guard brick is provided with a first end and a second end which are oppositely arranged; the lower edge of the first end is provided with a tip part; the protection part is a high-temperature-resistant high-strength structural part and is provided with a containing groove, the tip part is arranged in the containing groove, the first direction is the direction from the second end to the first end, and the second direction is perpendicular to the first direction. When the tip part is arranged in the containing groove, the containing groove can wrap the top face and the bottom face of the tip part, so that the tip part is protected, the risk that the tip part is broken is reduced, and even if the tip part is broken, the containing cavity can also have a certain containing effect on fragments. Therefore, when the flange assembly provided by the embodiment is used for the glass rolling system, the risk that the glass fragments are rolled into the molten glass can be effectively reduced, so that the risk that the compression roller is damaged is reduced, and the quality of the formed glass is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of glass processing, in particular to a retaining edge component, an overflow port expansion and contraction device and a glass rolling system. Background Art

[0002] In the glass rolling system, after the molten glass flows out through the overflow port, it is squeezed into a glass ribbon of set thickness by a pressure roller. Among them, the overflow port needs to be provided with an expansion and contraction device, and the expansion and contraction equipment includes two guard bricks arranged at intervals, which are used to limit the width of the molten glass flowing out of the overflow port, so that the formed glass is within a set width range. In the prior art, the guard bricks are usually made of zirconium mullite, which is resistant to high temperatures and has low thermal conductivity. Among them, in order to adapt to the shape of the pressure roller, the front end of the guard brick is an arc surface, thereby forming a thinner tip at the lower edge of the front end. Due to the low strength of zirconium mullite, the tip of the guard brick is easy to break, and the broken guard brick will be drawn into the molten glass, which will not only damage the pressure roller, but also cause the quality of the processed glass to be low. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a sidewall assembly that can be applied to a glass rolling system to reduce the risk of damage to the roller and ensure the quality of the glass.

[0004] The utility model also provides an expansion and contraction device comprising the above-mentioned retaining edge assembly.

[0005] The utility model also provides a glass rolling system comprising the expansion and contraction device.

[0006] According to the first aspect of the present invention, the retaining edge assembly comprises a guard brick and a protective member.

[0007] The guard brick has a first end and a second end that are relatively arranged, and the lower edge of the first end forms a tip; the protective member is a high-temperature resistant and high-strength structural member, and the protective member includes a first shielding portion, a second shielding portion, a third shielding portion and a fourth shielding portion, the first shielding portion and the second shielding portion are spaced apart along the second direction, the third shielding portion and the fourth shielding portion are distributed along the vertical direction, both ends of the third shielding portion and the fourth shielding portion are respectively connected to the first shielding portion and the second shielding portion, and the front end of the third shielding portion along the first direction is connected to the fourth shielding portion, the first shielding portion, the second shielding portion, the third shielding portion and the fourth shielding portion define a receiving groove, and the tip is arranged in the receiving groove, and the first shielding portion, the second shielding portion, the third shielding portion and the fourth shielding portion respectively cover the two side surfaces of the tip distributed along the second direction, as well as the top surface and the bottom surface distributed along the vertical direction.

[0008] The sidewall assembly according to the embodiment of the utility model has at least the following beneficial effects:

[0009] The first shielding part, the second shielding part, the third shielding part and the fourth shielding part of the protective member are interconnected to define a receiving cavity, wherein the third shielding part and the fourth shielding part are distributed along the vertical direction, the first shielding part and the second shielding part are distributed at intervals along the second direction, and when the tip portion is arranged in the receiving groove, the first shielding part and the second shielding part shield the two side surfaces of the tip portion along the second direction, and the third shielding part and the fourth shielding part respectively shield the top surface and the bottom surface of the tip portion, thereby protecting the tip portion and reducing the risk of the tip portion breaking, and even if the tip portion breaks, the receiving cavity can also play a certain role in accommodating the fragments. Therefore, when the side guard assembly of this embodiment is used in a glass rolling system, it can effectively reduce the risk of the guard brick fragments being drawn into the glass melt, thereby reducing the risk of damage to the pressure roller and ensuring the quality of the glass after forming.

[0010] According to some embodiments of the present invention, the protective element is detachably connected to the guard brick.

[0011] According to some embodiments of the utility model, the guard brick has a card slot, and the protective member also includes a card connection portion, the two ends of the card connection portion are respectively connected to the first shielding portion and the second shielding portion, along the first direction, the card connection portion and the four shielding portions are arranged at intervals, and the bottom of the guard brick has a card slot, and the card connection portion is carded in the card slot.

[0012] According to some embodiments of the utility model, the first shielding portion is used to contact the glass melt, and the protective member also includes an extension portion, which is connected to the first shielding portion, extends along the first direction, and protrudes from the third shielding portion and the fourth shielding portion.

[0013] According to the second aspect of the present invention, the expansion and contraction device is used to be arranged at the overflow port of the molten glass of the glass rolling device, and includes: a bracket, a lip brick and the side guard assembly described in the first aspect, the lip brick is connected to the bracket, and the expansion and contraction device includes two side guard assemblies, and the two side guard assemblies are arranged on the top surface of the lip brick at intervals along the second direction.

[0014] The expansion and contraction device according to the embodiment of the utility model has at least the following beneficial effects:

[0015] The side guard assembly implemented in the first aspect is adopted, and the first shielding part, the second shielding part, the third shielding part and the fourth shielding part of the protective member in the side guard assembly are interconnected to define a receiving cavity, wherein the third shielding part and the fourth shielding part are distributed along the vertical direction, and the first shielding part and the second shielding part are distributed at intervals along the second direction. When the tip portion is arranged in the receiving groove, the first shielding part and the second shielding part shield the two side surfaces of the tip portion along the second direction, and the third shielding part and the fourth shielding part respectively shield the top surface and the bottom surface of the tip portion, thereby protecting the tip portion and reducing the risk of the tip portion breaking. Even if the tip portion breaks, the receiving cavity can still play a certain role in accommodating the fragments. Therefore, when the expansion and contraction device of this embodiment is used in a glass rolling system, the risk of the guard brick fragments being drawn into the glass melt can be effectively reduced, thereby reducing the risk of damage to the pressure roller and ensuring the quality of the formed glass.

[0016] According to some embodiments of the present invention, the protective member is a 310S stainless steel structural member, and the bottom of the guard brick also has a limiting portion, which extends from the penetration hole and abuts against the front end side of the lip brick along the first direction.

[0017] According to the glass rolling system of the third embodiment of the utility model, it includes: the expansion and contraction device described in the second embodiment.

[0018] According to some embodiments of the present invention, the bottom of the guard brick further has a limiting portion, which extends from the penetration hole and abuts against the front end side surface of the lip brick along the first direction.

[0019] According to some embodiments of the present invention, the side rib assembly is capable of moving along the second direction to adjust the distance between the two side rib assemblies along the second direction.

[0020] According to some embodiments of the present invention, the guard brick has a mounting groove, a first opening, and a second opening, the first opening is connected to the mounting groove and is arranged upward, and the second opening passes through the mounting groove along the second direction and extends to the top of the guard brick;

[0021] The expansion and contraction device also includes an adjustment mechanism, which includes an adjustment member and a locking member. The adjustment member includes a first connecting portion and a second connecting portion. The first connecting portion is connected to one end of the second connecting portion. The size of the first connecting portion is adapted to the mounting groove. The first connecting portion can extend into the mounting groove from the first opening and be snapped into the mounting groove. The second connecting portion extends from the second opening and is movably connected to the bracket. The locking member is used to lock the adjustment member to the adjustment member.

[0022] According to the glass rolling system of the third embodiment of the utility model, it includes the expansion and contraction device of the second embodiment.

[0023] The glass rolling system according to the embodiment of the utility model has at least the following beneficial effects:

[0024] The expansion and contraction device implemented by the second aspect is adopted, and the first shielding part, the second shielding part, the third shielding part and the fourth shielding part of the protective member in the expansion and contraction device are interconnected to define a receiving cavity, wherein the third shielding part and the fourth shielding part are distributed along the vertical direction, and the first shielding part and the second shielding part are distributed at intervals along the second direction. When the tip portion is arranged in the receiving groove, the first shielding part and the second shielding part shield the two side surfaces of the tip portion along the second direction, and the third shielding part and the fourth shielding part respectively shield the top surface and the bottom surface of the tip portion, thereby protecting the tip portion and reducing the risk of the tip portion breaking. Even if the tip portion is broken, the receiving cavity can still play a certain role in accommodating the fragments, thereby effectively reducing the risk of the brick fragments being drawn into the glass melt, thereby reducing the risk of damage to the pressure roller and ensuring the quality of the glass after forming.

[0025] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present invention is further described below with reference to the accompanying drawings and embodiments, wherein:

[0027] Figure 1 It is a structural schematic diagram of the sidewall assembly of the first embodiment of the utility model;

[0028] Figure 2 for Figure 1 Exploded view of;

[0029] Figure 3 for Figure 2 A schematic diagram of the structure of the middle protective part;

[0030] Figure 4 It is a structural schematic diagram of the expansion and contraction device of the second aspect of the utility model;

[0031] Figure 5 for Figure 4 Magnified view of area A in the middle;

[0032] Figure 6 for Figure 4 Exploded view of the middle rib assembly and the adjustment mechanism;

[0033] Figure 7 for Figure 4 Another perspective diagram;

[0034] Figure 8 for Figure 7 Magnified view of area B.

[0035] Reference numerals:

[0036] Guard brick 100, first end 110, second end 120, arc surface 130, tip portion 140, slot 150, avoidance slot 160, stop portion 170, mounting slot 180, first opening 181, second opening 182;

[0037] Protective element 200, first shielding portion 210, second shielding portion 220, third shielding portion 230, fourth shielding portion 240, accommodating cavity 250, clamping portion 260, extending portion 270, through hole 280;

[0038] Lip brick 300;

[0039] Bracket 400, connecting slot 410;

[0040] Adjustment mechanism 500 , adjustment member 510 , first connection portion 511 , second connection portion 512 , locking member 530 . DETAILED DESCRIPTION

[0041] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0042] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0043] In the description of the present utility model, "several" means more than one, "many" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used to distinguish the technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0044] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0045] In the glass rolling system, after the molten glass flows out through the overflow port, it is squeezed into a glass ribbon of set thickness by a pressure roller. Among them, the overflow port needs to be provided with an expansion and contraction device, and the expansion and contraction equipment includes two guard bricks arranged at intervals, which are used to limit the width of the molten glass flowing out of the overflow port, so that the formed glass is within a set width range. In the prior art, the guard bricks are usually made of zirconium mullite, which is resistant to high temperatures and has low thermal conductivity. Among them, in order to adapt to the shape of the pressure roller, the front end of the guard brick is an arc surface, thereby forming a thinner tip at the lower edge of the front end. Due to the low strength of zirconium mullite, the tip of the guard brick is easy to break, and the broken guard brick will be drawn into the molten glass, which will not only damage the pressure roller, but also cause the quality of the processed glass to be low.

[0046] Based on the above problems, the first embodiment of the utility model proposes a side guard assembly. The side guard assembly of this embodiment can be applied to a glass rolling system to reduce the risk of damage to the pressure roller and ensure the quality of the glass. Figures 1 to 3 , Figure 1 This is a schematic structural diagram of a sidewall assembly according to an embodiment of the first aspect of the utility model. Figure 2 for Figure 1 Exploded view of Figure 3 for Figure 2 The schematic structural diagram of the protective member in the embodiment includes a protective brick 100 and a protective member 200.

[0047] The guard brick 100 has a first end 110 and a second end 120 that are arranged opposite to each other. The first end 110 has an arc surface 130, so that a tip portion 140 (such as Figure 2 The protective member 200 is a high-temperature resistant and high-strength structural member. For example, the protective member 200 is made of S310 stainless steel. The protective member 200 includes a first shielding portion 210, a second shielding portion 220, a third shielding portion 230 and a fourth shielding portion 240 (as shown in FIG. Figure 3As shown in the figure, the first shielding portion 210 and the second shielding portion 220 are spaced apart along the second direction (the first direction is the direction from the second end 120 to the first end 110, and the second direction is perpendicular to the first direction), the third shielding portion 230 and the fourth shielding portion 240 are distributed along the vertical direction, both ends of the third shielding portion 230 and the fourth shielding portion 240 are respectively connected to the first shielding portion 210 and the second shielding portion 220, and the front end of the third shielding portion 230 along the first direction is connected to the fourth shielding portion 240. The first shielding part 210, the second shielding part 220, the third shielding part 230 and the fourth shielding part 240 define a receiving groove, and the tip 140 is arranged in the receiving groove, that is, the first shielding part 210 and the second shielding part 220 shield the two side surfaces of the tip 140 along the second direction, and the third shielding part 230 and the fourth shielding part 240 respectively shield the top surface and the bottom surface of the tip 140, thereby protecting the tip 140, not only reducing the risk of the tip 140 breaking, but also even if the tip 140 breaks, the receiving cavity 250 can also play a certain role in containing the fragments. Therefore, when the side guard assembly of this embodiment is used in a glass rolling system, it can effectively reduce the risk of the guard brick 100 fragments being involved in the glass melt, thereby reducing the risk of damage to the pressure roller and ensuring the quality of the glass after forming.

[0048] Reference Figure 2 On the basis of the above-mentioned embodiment, two side surfaces of the guard brick 100 that are opposite to each other along the second direction have an avoidance groove 160, and the first shielding portion 210 and the second shielding portion 220 are both accommodated in the avoidance groove 160, so that the second shielding portion 220 and the first shielding portion 210 are flush with the surface of the guard brick 100, thereby preventing the glass melt from forming dents on the side after passing through the guard brick 100.

[0049] Reference Figure 2 and Figure 3 In some embodiments, the protective member 200 is detachably connected to the guard brick 100 by means of screw connection or snap connection. Therefore, when the protective member 200 or the guard brick 100 is damaged due to long-term use, the protective member 200 or the guard brick 100 can be replaced separately without replacing the entire retaining edge assembly, thereby reducing the maintenance cost of the glass rolling system.

[0050] Reference Figure 2 and Figure 3On the basis of the above embodiment, the protective member 200 further includes a clamping portion 260, the two ends of which are respectively connected to the first shielding portion 210 and the second shielding portion 220. Along the first direction, the clamping portion 260 and the fourth shielding portion 240 are arranged at intervals. A clamping groove 150 is also provided at the bottom of the guard brick 100, and the clamping portion 260 is clamped in the clamping groove 150 to realize a detachable connection between the protective member 200 and the guard brick 100. Specifically, in the actual production process of the rolling system, the guard brick 100 needs to be installed on the upper surface of the lip brick 300, that is, when the present embodiment is applied to the glass rolling system, the retaining edge assembly is arranged on the upper surface of the lip brick 300 of the glass rolling system. Based on this, the present embodiment sets a card slot 150 at the bottom of the guard brick 100, and the clamping portion 260 of the protective member 200 is clamped in the card slot 150. Therefore, when the retaining edge assembly of the present embodiment is applied to the rolling system, the lip brick 300 can block the opening of the card slot 150 and restrict the clamping portion 260 in the card slot 150, thereby improving the firmness of the protective member 200. In addition, since the clamping portion 260 can be restricted in the card slot 150 by the lip brick 300, during installation, it is only necessary to clamp the clamping portion 260 into the card slot 150, and no other locking steps are required, thereby making the disassembly and assembly of the protective member 200 more convenient.

[0051] Reference Figure 2 and Figure 3 In some embodiments, the first shielding portion 210 is used to contact the glass melt, and the protective member 200 further includes an extension portion 270, which is connected to the first shielding portion 210, and the extension portion 270 extends along the first direction and protrudes from the third shielding portion 230 and the fourth shielding portion 240. Specifically, the extension portion 270 extending along the first direction can increase the shielding distance of the rib assembly to the glass melt, thereby effectively reducing the flow of the glass melt along the second direction to improve the width of the formed glass. Specifically, after the glass melt flows out through the overflow port, it has a certain fluidity because it has not been completely cooled. It can be understood that as time goes by, the temperature of the glass melt slowly decreases, and its fluidity will also decrease. Based on this, the embodiment of the present invention is provided with an extension portion 270 extending along the flow direction of the glass melt (i.e., the first direction) at the front end of the protective member 200, so that the temperature of the glass melt can be lower when it leaves the protective member 200, thereby reducing its flow along the second direction to improve the width accuracy of the glass.

[0052] Reference Figure 4 , Figure 4This is a structural schematic diagram of the expansion and contraction device of the second aspect of the utility model. The expansion and contraction device of the second aspect embodiment of the utility model is used to be arranged at the overflow port of the molten glass of the glass rolling device, and includes: a bracket 400, a lip brick 300 and a side guard assembly of the first aspect embodiment, the lip brick 300 is connected to the bracket 400, and the expansion and contraction device includes two side guard assemblies, and the two side guard assemblies are arranged on the top surface of the lip brick 300 at intervals along the second direction. Among them, the first shielding part 210, the second shielding part 220, the third shielding part 230 and the fourth shielding part 240 of the protective member 200 in the retaining edge assembly are interconnected to define a receiving cavity 250, wherein the third shielding part 230 and the fourth shielding part 240 are distributed along the vertical direction, and the first shielding part 210 and the second shielding part 220 are distributed at intervals along the second direction. Therefore, when the tip portion 140 is arranged in the receiving groove, the first shielding part 210 and the second shielding part 220 shield the two side surfaces of the tip portion 140 along the second direction, and the third shielding part 230 and the fourth shielding part 240 respectively shield the top surface and the bottom surface of the tip portion 140, thereby protecting the tip portion 140 and reducing the risk of the tip portion 140 being broken. Even if the tip portion 140 is broken, the receiving cavity 250 can also play a certain role in accommodating the fragments. Therefore, when the expansion and contraction device of this embodiment is used in a glass rolling system, the risk of the fragments of the guard brick 100 being drawn into the molten glass can be effectively reduced, thereby reducing the risk of damage to the pressure rollers and ensuring the quality of the formed glass.

[0053] In addition, it should be noted that, since this embodiment adopts all the technical features of the side guard assembly of the first aspect embodiment, this embodiment has all the beneficial effects brought by the first aspect embodiment, which will not be repeated here.

[0054] In some embodiments, the side guard assembly can move along the second direction to adjust the distance between the two side guard assemblies along the second direction, thereby adjusting the size of the molded glass along the second direction, thereby improving the practicality of the expansion and contraction device of this embodiment.

[0055] Reference Figure 5 and Figure 6 , Figure 5 for Figure 4 A magnified view of area A in the middle. Figure 6 for Figure 4 The exploded view of the middle retaining edge assembly and the adjustment mechanism, based on the above embodiment, the guard brick 100 has a mounting groove 180, a first opening 181 and a second opening 182 (such as Figure 6 As shown in FIG. 1 , the first opening 181 is connected to the mounting groove 180 and is arranged upward, and the second opening 182 passes through the mounting groove 180 along the second direction and extends to the top of the guard brick 100. The expansion and contraction device also includes an adjustment mechanism 500, which includes an adjustment member 510 and a locking member 530 (as shown in FIG. Figure 5As shown), the adjusting member 510 includes a first connecting portion 511 and a second connecting portion 512, the first connecting portion 511 is connected to one end of the second connecting portion 512, and the size of the first connecting portion 511 is adapted to the mounting groove 180, as shown in FIG. Figure 5 As shown, the mounting groove 180 is a rectangular groove, the first connecting portion 511 is a rectangular structure, and the size of the first connecting portion 511 is adapted to the mounting groove 180, so that the first connecting portion 511 can extend from the first opening 181 into the mounting groove 180 and be snapped into the mounting groove 180, thereby completing the connection between the adjustment member 510 and the retaining edge assembly, and the installation process is simple and convenient. The second connecting portion 512 extends from the second opening 182 and is movably connected to the bracket 400, and the locking member 530 is used to lock the adjustment member 510 to the bracket 400. Specifically, the guard brick 100 is made of zirconium mullite, which has low strength and is not conducive to processing to form threaded holes. Based on this, in order to make the connection between the adjusting member 510 and the guard brick 100 simpler, the present embodiment sets a mounting groove 180 on the top of the guard brick 100. The installation of the guard brick 100 and the adjusting member 510 can be completed by clamping the first connecting portion 511 in the mounting groove 180, and the adjusting member 510 is locked to the bracket 400 by the locking member 530. At this time, in the vertical direction, the side guard assembly is restricted between the lip brick 300 and the adjusting member 510, and the cooperation of the first connecting portion 511 and the mounting groove 180 restricts the movement of the side guard structure in the horizontal direction. Therefore, there is no need to additionally set a connecting structure between the side guard structure and the lip brick 300, which makes the structure and installation process of the expansion and contraction device of the present embodiment simpler.

[0056] The second connection part 512 is, for example, a screw, and the locking member 530 is, for example, two nuts. The bracket 400 has a connection hole, the screw is passed through the connection hole, and the two nuts are connected to the screw and can clamp the bracket 400, thereby locking the screw to the bracket 400. When the bracket 400 is made of a pipe, the nut only needs to clamp any one of the pipe walls. Further, the bracket 400 has a connection groove 410 with an opening facing upward, and the connection groove 410 passes through the bracket 400 along the second direction. Therefore, during the installation process, the second connection part 512 can be extended into the connection groove 410 from top to bottom, and the second connection part 512 can be locked by tightening the nut, thereby making the installation of the adjustment member 510 more convenient. This makes the installation of the sidewall assembly simpler. Specifically, the specific process of installing the side guard assembly is to first complete the assembly between the guard brick 100 and the protective member 200 to form the side guard assembly, then place the side guard assembly on the upper surface of the lip brick 300, and then extend the first connecting portion 511 of the adjusting member 510 into the installation groove 180. At the same time, the second connecting portion 512 is inserted into the second opening 182 of the guard brick 100 and the connecting groove 410 of the bracket 400, and finally the second connecting portion 512 is locked to the bracket 400 through the locking member 530.

[0057] Reference Figure 3 , Figure 7 and Figure 8 , Figure 7 for Figure 4 Another perspective diagram, Figure 8 for Figure 7 The enlarged view of the area B in the middle shows that in some embodiments, the protective member 200 is a 310S stainless steel structural member, and the protective member 200 also has a through hole 280 penetrating in the vertical direction. The bottom of the guard brick 100 is exposed from the through hole 280 and abuts against the lip brick 300. Specifically, the thermal expansion coefficient of 310S stainless steel is about 16.5×10-6 / ℃, and the thermal expansion coefficient of zirconium mullite brick is lower, usually about 6×10 -6 / ℃ to 910 -6 / ℃, therefore, zirconium mullite has better thermal stability than 310S stainless steel. Based on this, the present embodiment sets a through hole 280 in the protective member 200, and the guard brick 100 is provided through the through hole 280 to abut against the lip brick 300, thereby reducing the change in the vertical height of the retaining edge assembly during the processing, so as to reduce the stress on the adjusting member 510, thereby improving the service life of the adjusting member 510. In addition, since the protective member 200 is provided with a through hole 280, smaller materials can be used in its manufacture, thereby saving manufacturing costs, and at the same time, the degree of thermal deformation of the protective member 200 can be reduced, thereby improving the service life of the protective member 200.

[0058] Reference Figure 3 , Figure 7 and Figure 8 In some embodiments, the bottom of the guard brick 100 also has a limiting portion 170, which extends from the penetration hole 280 and abuts against the front end side of the lip brick 300 along the first direction, thereby improving the position accuracy of the guard brick 100 and the lip brick 300, thereby improving the position accuracy of the guard brick 100 and the bracket 400. Therefore, during installation, the second opening 182 on the guard brick 100 and the connecting groove 410 on the bracket 400 can be located in the same straight line. In the process of extending the first connecting portion 511 into the installation groove 180, the second connecting portion 512 is inserted into the second opening 182 and the connecting groove 410, thereby making the installation of the adjustment mechanism 500 simpler, and then making the installation of the retaining edge assembly simpler.

[0059] The glass rolling system of the third embodiment of the utility model comprises the expansion and contraction device of the second embodiment. Among them, the first shielding part 210, the second shielding part 220, the third shielding part 230 and the fourth shielding part 240 of the protective member 200 in the expansion and contraction device are connected to each other to define a receiving cavity 250, wherein the third shielding part 230 and the fourth shielding part 240 are distributed in the vertical direction, and the first shielding part 210 and the second shielding part 220 are distributed at intervals along the second direction. Therefore, when the tip 140 is set in the receiving groove, the first shielding part 210 and the second shielding part 220 shield the two side surfaces of the tip 140 along the second direction, and the third shielding part 230 and the fourth shielding part 240 respectively shield the top surface and the bottom surface of the tip 140, thereby protecting the tip 140 and reducing the risk of the tip 140 breaking. Even if the tip 140 breaks, the receiving cavity 250 can also play a certain role in accommodating the fragments, thereby effectively reducing the risk of the fragments of the guard brick 100 being involved in the glass melt, thereby reducing the risk of damage to the pressure roller and ensuring the quality of the glass after molding.

[0060] It should be noted that, since this embodiment adopts the expansion and contraction device of the second embodiment, this embodiment has all the beneficial effects brought by the second embodiment, which will not be repeated here.

[0061] The above is a detailed description of the embodiment of the utility model in conjunction with the accompanying drawings, but the utility model is not limited to the above-mentioned embodiment, and various changes can be made without departing from the purpose of the utility model within the scope of knowledge possessed by ordinary technicians in the relevant technical field. In addition, in the description of the utility model, the description of the reference terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

Claims

1. A rib assembly, characterized in that: include: A guard brick having a first end and a second end disposed opposite to each other, wherein a lower edge of the first end has a pointed end; The protective member is a high-temperature resistant and high-strength structural member, the protective member comprises a first shielding portion, a second shielding portion, a third shielding portion and a fourth shielding portion, the first shielding portion and the second shielding portion are arranged at intervals along the second direction, the third shielding portion and the fourth shielding portion are distributed along the vertical direction, both ends of the third shielding portion and the fourth shielding portion are respectively connected to the first shielding portion and the second shielding portion, and the front end of the third shielding portion along the first direction is connected to the fourth shielding portion, the first shielding portion, the second shielding portion, the third shielding portion and the fourth shielding portion define a receiving groove, the tip portion is arranged in the receiving groove, the first shielding portion, the second shielding portion, the third shielding portion and the fourth shielding portion respectively shield the two side surfaces of the tip portion distributed along the second direction, and the top surface and the bottom surface distributed along the vertical direction; The first direction is a direction from the second end to the first end, and the second direction is perpendicular to the first direction.

2. The flange assembly according to claim 1, characterized in that: The guard is detachably connected to the guard brick.

3. The rib assembly according to claim 2, characterized in that: The protective member also includes a clamping portion, both ends of which are respectively connected to the first shielding portion and the second shielding portion. Along the first direction, the clamping portion and the fourth shielding portion are arranged at intervals. The bottom of the guard brick also has a clamping groove, and the clamping portion is clamped in the clamping groove.

4. The flange assembly according to claim 1, characterized in that: The first shielding portion is used to contact with the glass melt. The protective member further includes an extension portion, which is connected to the first shielding portion. The extension portion extends along the first direction and protrudes from the third shielding portion and the fourth shielding portion.

5. An expansion and contraction device, characterized in that: Used to be arranged at the overflow port of the molten glass of the glass rolling device, comprising: Bracket; a lip brick connected to the bracket; The side guard assembly according to any one of claims 1 to 4, wherein the expansion and contraction device comprises two side guard assemblies, and the two side guard assemblies are arranged on the top surface of the lip brick at intervals along the second direction.

6. The expansion and contraction device according to claim 5, characterized in that: The protective member is a 310S stainless steel structural member, and the protective member also has a through hole penetrating in a vertical direction, and the bottom of the guard brick is exposed from the through hole and abuts against the lip brick.

7. The expansion and contraction device according to claim 6, characterized in that: The bottom of the guard brick also has a limiting portion, which extends from the penetration hole and abuts against the front end side surface of the lip brick along the first direction.

8. The expansion and contraction device according to claim 5, characterized in that: The side rib assembly is movable along the second direction to adjust the distance between the two side rib assemblies along the second direction.

9. The expansion and contraction device according to claim 8, characterized in that: The guard brick has a mounting groove, a first opening and a second opening, the first opening is connected to the mounting groove and is arranged upward, and the second opening penetrates the mounting groove along the second direction and extends to the top of the guard brick; The expansion and contraction device also includes an adjustment mechanism, which includes an adjustment member and a locking member. The adjustment member includes a first connecting portion and a second connecting portion. The first connecting portion is connected to one end of the second connecting portion. The size of the first connecting portion is adapted to the mounting groove. The first connecting portion can extend into the mounting groove from the first opening and be snapped into the mounting groove. The second connecting portion extends from the second opening and is movably connected to the bracket. The locking member is used to lock the adjustment member to the adjustment member.

10. Glass rolling system, characterized in that: The invention comprises the expansion and contraction device according to any one of claims 5 to 9.

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