A sealing device for an edger

CN224930459UActive Publication Date: 2026-11-03KAILI KAI RONG GLASS CO LTD
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Patent Information

Application Number
CN202522720194.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-12-23
Publication Date
2026-11-03
Estimated Expiration
2035-12-23

AI Technical Summary

Technical Problem

The sealing device of the existing edge-pulling machine is prone to loosening after long-term use, resulting in poor sealing and allowing outside air to enter the tin bath, affecting the quality of glass forming.

Method used

A sealing device comprising a sealing flange, a bellows, a front sealing sleeve, a rear sealing sleeve, and a clamping element was designed. It enables quick disassembly and replacement through bolt connection, and enhances sealing performance by combining the double protection of a flexible tube and a graphite ring.

Benefits of technology

It achieves excellent sealing and easy disassembly, reduces the labor intensity of workers, and ensures the normal production and quality of float glass.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224930459U_ABST
Patent Text Reader

Abstract

The utility model provides a sealing device of edge puller, including setting in the tin groove wall body outside and the sealing flange of setting on the edge puller pole, the sealing flange is equipped with the first connecting flange away from tin groove wall body one end, the sealing flange is inside the annular groove, be equipped with the sealing element of setting on the edge puller pole in the annular groove, the first connecting flange is equipped with the bellow away from sealing flange one end, bellow both ends are respectively fixed and are equipped with the front seal cover and rear seal cover, the front seal cover is fixedly connected through bolt with the first connecting flange, be equipped with the reinforcing part between bellow outside's front seal cover and rear seal cover, the rear seal cover is equipped with the compression element of setting on the edge puller pole away from bellow one end, this sealing device simple structure, have good sealing simultaneously and have good easy disassembly, disassembly and replace bellow fast and convenient, alleviate the labor intensity of worker, save time and labour, guarantee the normal production of float glass.
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Description

Technical Field

[0001] This utility model belongs to the field of float glass production equipment, and specifically relates to a sealing device for an edge-pulling machine. Background Technology

[0002] The float glass edge-pulling machine is used in float glass production lines, operating in the tin bath section and mounted on dedicated supports on both sides of the tin bath. The edge-pulling rod of the machine passes through the edge of the tin bath and inserts into its interior. The tin bath is continuously filled with a nitrogen-hydrogen protective gas to prevent oxidation. Float glass production has strict requirements for the sealing of the tin bath; the quality of the seal directly affects the glass surface quality and the consumption of molten tin. If the tin bath is not sealed properly, outside air may enter, causing the molten tin to react with oxygen and form tin oxides. These oxides adhere to the lower surface of the glass, affecting the overall quality and aesthetics of the glass product. Therefore, installing a sealing device in the glass edge-pulling machine is crucial for maintaining the airtightness of the tin bath and ensuring high-quality glass production.

[0003] As the edge-pulling wheel of the edge-pulling machine moves or swings continuously, the corrugated pipe will undergo significant deformation. After prolonged use, the flange connection between the corrugated pipe and the edge-pulling machine rod will inevitably loosen, leaving gaps and inadequate sealing. This allows air to enter the tin bath through the gap between the edge-pulling machine rod and the flange, or to flow through the connection gap between the metal corrugated pipe and the tin bath wall, which may affect the forming quality of the glass sheet.

[0004] In view of this, in order to solve the above-mentioned technical problems, this utility model proposes a sealing device for a swivel machine that has a simple structure, good sealing performance and easy disassembly. The device allows for quick and convenient disassembly and replacement of the bellows, reducing the labor intensity of workers, saving time and effort, and ensuring the normal production of float glass. Utility Model Content

[0005] This utility model provides a sealing device for an edge-pulling machine. It features a simple structure, is easy to install and replace, and offers both excellent sealing performance and easy disassembly. Disassembly and replacement of the bellows are quick and convenient, reducing the labor intensity of workers, saving time and effort, and ensuring the normal production of float glass. The specific solution is as follows: A sealing device for an edge-pulling machine includes a sealing flange disposed on the outside of a tin bath wall and sleeved on the edge-pulling machine rod. A first connecting flange is provided at the end of the sealing flange facing away from the tin bath wall. An annular groove is formed inside the sealing flange, and a sealing element sleeved on the edge-pulling machine rod is disposed within the annular groove. A bellows is provided at the end of the first connecting flange facing away from the sealing flange. A front sealing sleeve and a rear sealing sleeve are respectively fixed at both ends of the bellows. The front sealing sleeve is fixedly connected to the first connecting flange by bolts. A reinforcing member is provided between the front and rear sealing sleeves on the outside of the bellows. A clamping element sleeved on the edge-pulling machine rod is provided at the end of the rear sealing sleeve facing away from the bellows.

[0006] Furthermore, the reinforcing component includes two reinforcing rings and a flexible tube. The two reinforcing rings are fixedly connected to the front sealing sleeve and the rear sealing sleeve, respectively. The flexible tube is connected between the two reinforcing rings, and the reinforcing rings and the corrugated tube are arranged with a gap.

[0007] Furthermore, the sealing element includes a first graphite ring and sealing rings disposed at both ends of the first graphite ring, and the sealing flange has an abutment member that abuts against the sealing element at one end away from the tin bath wall.

[0008] Furthermore, the abutment component includes an abutment ring and a mounting ring. The sealing flange has an annular abutment groove communicating with the annular groove at one end away from the tin bath wall. An annular platform groove is formed on the sealing flange outside the abutment groove. The abutment ring is disposed in the abutment groove, and the mounting ring is disposed in the platform groove and fixedly connected to the abutment ring. The mounting ring is fixedly connected to the sealing flange by screws.

[0009] Furthermore, the sealing ring is made of refractory fiber cotton.

[0010] Furthermore, the sealing device also includes a tin bath edge seal, one end of which is placed inside the tin bath wall and the other end is placed inside the sealing flange.

[0011] Furthermore, the clamping component includes a clamping ring sleeved on the edge-pulling machine rod, a second connecting flange fixedly connected to the clamping ring, the second connecting flange being fixedly connected to the rear sealing sleeve by bolts, and an annular mounting groove provided inside the clamping ring, and a second graphite ring sleeved on the edge-pulling machine rod provided inside the mounting groove.

[0012] The beneficial effects of this utility model are: 1. The sealing device of the edge-pulling machine of this utility model has good sealing performance by setting a sealing flange and its internal sealing element, a bellows and its front sealing sleeve and rear sealing sleeve at both ends, and a pressing element on one side of the rear sealing sleeve on the outside of the tin bath wall. When the bellows is damaged, it can be quickly replaced by disassembling the bolts, saving time and effort and ensuring the normal production of float glass. 2. The sealing device of the edge-pulling machine of this utility model can effectively protect the corrugated pipe by setting a reinforcing ring between the front sealing sleeve and the rear sealing sleeve and a flexible tube between the two reinforcing rings, thereby strengthening the reliability of the corrugated pipe and further ensuring the normal operation of float glass production. 3. The sealing device of the edge-pulling machine of this utility model can enhance the sealing performance between the tin bath wall and the sealing flange by setting the tin bath edge seal inside the tin bath wall and the sealing flange, and prevent air from entering the tin bath; 4. The sealing device has a simple structural design, is easy to disassemble and replace, reduces the labor intensity of workers during replacement, and is highly practical. Attached Figure Description

[0013] Figure 1 This is a cross-sectional view of the present invention.

[0014] Figure 2 This is a schematic diagram of the structure of this utility model.

[0015] Figure 3 for Figure 2 Enlarged view of a portion of the image.

[0016] Figure 4 This is a partial exploded view of the present invention.

[0017] Explanation of reference numerals in the attached drawings: 1. Tin bath wall; 2. Edge pulling machine rod; 3. Sealing flange; 4. First connecting flange; 5. Bellows; 6. Front sealing sleeve; 7. Reinforcing ring; 8. Flexible tube; 9. First graphite ring; 10. Sealing ring; 11. Abutment ring; 12. Mounting ring; 13. Screw; 14. Tin bath side seal; 15. Compression ring; 16. Second graphite ring; 17. Rear sealing sleeve. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] See Figures 1-4A sealing device for an edge-pulling machine includes a sealing flange 3 disposed on the outside of a tin bath wall 1 and fitted onto an edge-pulling machine rod 2. A section of pipe is connected to one end of the sealing flange 3 facing away from the tin bath wall 1. A first connecting flange 4 is provided at the other end of the sealing flange 3 facing away from the tin bath wall 1. Multiple through holes are formed along the circumference of the first connecting flange 4. An annular groove is formed inside the sealing flange 3, and a sealing element fitted onto the edge-pulling machine rod 2 is disposed within the annular groove. A bellows 5 is provided at the other end of the first connecting flange 4 facing away from the sealing flange 3. A front sealing sleeve 6 and a rear sealing sleeve 17 are fixedly provided at both ends of the bellows 5. Multiple through holes for bolts to pass through are formed along the circumference of both the front sealing sleeve 6 and the rear sealing sleeve 17. The front sealing sleeve 6 is fixedly connected to the first connecting flange 4 by bolts. A reinforcing member is provided between the front sealing sleeve 6 and the rear sealing sleeve 17 on the outside of the bellows 5.

[0020] The preferred reinforcement includes two reinforcing rings 7 and a flexible tube 8. The two reinforcing rings 7 are fixedly connected to the front sealing sleeve 6 and the rear sealing sleeve 17, respectively. The two reinforcing rings 7 are welded to the front sealing sleeve 6 and the rear sealing sleeve 17, respectively. The flexible tube 8 is connected between the two reinforcing rings 7. The flexible tube 8 is made of high-density polymer material, which has good flexibility, high strength, and is not easily damaged. It prevents external air and water vapor from entering and reduces the impact of air and water vapor reaction with molten tin on the glass quality. Combined with the design of the corrugated tube 5, it forms a double protection. The reinforcing rings 7 and the corrugated tube 5 are arranged with a gap.

[0021] The preferred sealing element includes a first graphite ring 9 and sealing rings 10 disposed at both ends of the first graphite ring 9. The sealing flange 3 is provided with an abutment member that abuts against the sealing element at one end away from the tin bath wall 1. The inner sides of the first graphite ring 9 and the sealing rings 10 at both ends are attached to the outer side of the edge-pulling machine rod 2. The graphite ring has the characteristics of high temperature resistance, corrosion resistance and wear resistance. When adjusting the angle of the edge-pulling machine rod 2 extending into the tin bath, it can ensure that no gas enters or exits, effectively preventing the tin bath pressure from leaking out.

[0022] The preferred abutment component includes an abutment ring 11 and a mounting ring 12. The sealing flange 3 has an annular abutment groove that communicates with the annular groove at one end away from the tin bath wall 1. An annular platform groove is formed on the sealing flange 3 outside the abutment groove. The abutment ring 11 is disposed in the abutment groove, and the mounting ring 12 is disposed in the platform groove and fixedly connected to the abutment ring 11. The mounting ring 12 is fixedly connected to the sealing flange 3 by screws 13. The abutment ring 11 ensures that the sealing component fits tightly in the annular groove.

[0023] The preferred sealing ring 10 is made of refractory fiber cotton, which can achieve effective sealing and thermal insulation.

[0024] The preferred sealing device also includes a tin bath edge seal 14, one end of which is placed inside the tin bath wall 1 and the other end is placed inside the sealing flange 3. By providing the tin bath edge seal 14 inside the tin bath wall 1 and the sealing flange 3, the sealing performance between the tin bath wall 1 and the sealing flange 3 can be enhanced, and air can be effectively prevented from entering the tin bath.

[0025] The preferred clamping component includes a clamping ring 15 sleeved on the edge-pulling machine rod 2, a second connecting flange fixedly connected to the clamping ring 15, the second connecting flange being fixedly connected to the rear sealing sleeve 17 by bolts, an annular mounting groove being provided in the clamping ring 15, and a second graphite ring 16 sleeved on the edge-pulling machine rod 2 being provided in the mounting groove, wherein the clamping component can effectively prevent air from entering.

[0026] The sealing device for float glass edging machine described in this utility model has a simple structure, is easy to install and replace, and has good sealing performance as well as good disassembly. The bellows 5 can be quickly replaced by simply removing the bolts, and the replacement of the seal can be completed by simply removing the screws 13. This not only reduces the labor intensity of workers, but also saves time and effort, and ensures the normal production of float glass.

[0027] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.

[0028] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A sealing device for an edge-pulling machine, characterized in that: The device includes a sealing flange (3) set on the outside of the tin bath wall (1) and sleeved on the edge-pulling machine rod (2). The sealing flange (3) has a first connecting flange (4) at the end away from the tin bath wall (1). The sealing flange (3) has an annular groove, and the annular groove has a sealing element sleeved on the edge-pulling machine rod (2). The first connecting flange (4) has a bellows (5) at the end away from the sealing flange (3). The bellows (5) has a front sealing sleeve (6) and a rear sealing sleeve (17) fixed at both ends. The front sealing sleeve (6) is fixedly connected to the first connecting flange (4) by bolts. A reinforcing member is provided between the front sealing sleeve (6) and the rear sealing sleeve (17) on the outside of the bellows (5). The rear sealing sleeve has a clamping element sleeved on the edge-pulling machine rod (2) at the end away from the bellows.

2. The sealing device for a screeding machine according to claim 1, characterized in that: The reinforcement includes two reinforcing rings (7) and a flexible tube (8). The two reinforcing rings (7) are fixedly connected to the front sealing sleeve (6) and the rear sealing sleeve (17) respectively. The flexible tube (8) is connected between the two reinforcing rings (7). The reinforcing rings (7) and the corrugated tube (5) are arranged with a gap.

3. The sealing device for a screeding machine according to claim 1, characterized in that: The sealing element includes a first graphite ring (9) and sealing rings (10) disposed at both ends of the first graphite ring (9). The sealing flange (3) is provided with an abutment on the sealing element at one end away from the tin bath wall (1).

4. The sealing device for a screeding machine according to claim 3, characterized in that: The abutment includes an abutment ring (11) and an mounting ring (12). The sealing flange (3) has an annular abutment groove connected to the annular groove at one end away from the tin bath wall (1). An annular platform groove is provided on the sealing flange (3) outside the abutment groove. The abutment ring (11) is set in the abutment groove. The mounting ring (12) is set in the platform groove and is fixedly connected to the abutment ring (11). The mounting ring (12) is fixedly connected to the sealing flange (3) by screws (13).

5. A sealing device for a screeding machine according to claim 3, characterized in that: The sealing ring (10) is made of refractory fiber cotton.

6. The sealing device for a screeding machine according to claim 1, characterized in that: The sealing device also includes a tin bath edge seal (14), one end of which is placed inside the tin bath wall (1) and the other end is placed inside the sealing flange (3).

7. The sealing device for a screeding machine according to claim 1, characterized in that: The clamping component includes a clamping ring (15) sleeved on the edge-pulling machine rod (2). A second connecting flange is fixedly connected to the clamping ring (15). The second connecting flange is fixedly connected to the rear sealing sleeve (17) by bolts. An annular mounting groove is provided in the clamping ring (15). A second graphite ring (16) sleeved on the edge-pulling machine rod (2) is provided in the mounting groove.