Annealing furnace with ultrasonic rust removal function

Abstract

The utility model discloses an annealing furnace with an ultrasonic rust removal function, and belongs to the technical field of glass machinery. Which comprises a heating area (1), a heat preservation area (2) and an opening area (4), a gravity sinking heavy vertical roller (11) is arranged in an automatic tensioning area (6), and a return mesh belt (4) passes through the bottom of the heavy vertical roller (11), and is characterized in that a water tank (12) is arranged in the automatic tensioning area (6), the heavy vertical roller (11) is arranged in the water tank (12), the mesh belt (4) is located below the liquid level in the water tank (12) under the gravity action of the heavy vertical roller (11), and the mesh belt (4) is located below the liquid level in the water tank (12). And an ultrasonic transducer (8) is arranged on the outer wall of the water tank (12). According to the annealing furnace with the ultrasonic rust removal function, the annealing furnace is modified on the basis of an original automatic tensioning section of the annealing furnace, an original heavy vertical roller of the automatic tensioning section is utilized to enable the heavy vertical roller to sink below the liquid level of the water tank, ultrasonic cleaning of the mesh belt is achieved, the situation that the original layout of the annealing furnace is changed is avoided, and the service life of the annealing furnace is prolonged. Therefore, the universality is improved.

Description

Technical Field

[0001] An annealing furnace with ultrasonic rust removal function belongs to the field of glass machinery technology. Background Technology

[0002] After glass products are formed at high temperatures, varying degrees of thermal stress are generated during the cooling process. To eliminate the impact of thermal stress on the glass products, they need to be annealed in an annealing furnace. Traditional annealing furnaces generally include multiple sections such as a heating zone, a holding zone, and an open zone. A conveyor belt circulates between these zones, simultaneously carrying the glass products placed on its surface through the furnace for annealing. The open zone includes an automatic tensioning section, a manual tensioning section, and a drive section. The drive section provides power for the conveyor belt's operation. The automatic tensioning section features heavy-duty rollers; the returning conveyor belt passes over these rollers and remains taut under their influence. The manual tensioning section primarily adjusts the thermal expansion of the conveyor belt to maintain a preset angle between the two sides of the heavy-duty rollers, achieving a proper tension.

[0003] During the cyclic operation of the conveyor belt, some parts are exposed to air, making the surface prone to rust or dust accumulation. If rust or dust adheres to the bottles, it will affect the appearance and cleanliness of the glass products, and may even cause defects in the glass bottles, thus affecting their quality. In existing technologies, rust and dust removal are generally carried out through physical wiping (such as brushing), such as by arranging a spiked wheel rust removal device in the drive section.

[0004] However, because the conveyor belt has a structure of metal rings fastened in stages, traditional physical wiping methods can only remove rust and dust from the surface of the conveyor belt. Rust and dust inside the conveyor belt are still difficult to remove. To solve this problem, existing technologies generally use ultrasonic cleaning to clean the conveyor belt, such as the technical solution described in Chinese Utility Model Patent Application No. 202021641188.5, filed on August 10, 2020, entitled "Glass Annealing Furnace Conveyor Belt Cleaning Equipment"; the technical solution described in Chinese Utility Model Patent Application No. 202421288526.X, filed on June 6, 2024, entitled "Glass Annealing Furnace Conveyor Belt Cleaning Equipment"; the technical solution described in Chinese Utility Model Patent Application No. 202320509090.1; and the technical solution described in Chinese Utility Model Patent Application No. 202320509090.1, filed on March 15, 2023, entitled "An Ultrasonic Rust Removal Device".

[0005] Existing technologies for cleaning conveyor belts using ultrasonic cleaning, including the aforementioned solutions, all involve secondary modifications to the annealing furnace or structural additions to an existing furnace. Since ultrasonic cleaning requires liquid, a water tank and a separate roller to press the conveyor belt down into the tank are necessary. Therefore, existing ultrasonic cleaning solutions are structurally complex, significantly increasing the complexity of the annealing furnace structure and its original layout, hindering widespread adoption. Furthermore, the rollers pressing down the conveyor belt require a separate clamping device to ensure the bottom of the rollers remains below the water surface, resulting in a complex structure, limited lifespan, and the risk of conveyor belt warping and damage due to roller deformation. Utility Model Content

[0006] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide an annealing furnace that modifies the original automatic tensioning section of the annealing furnace and uses the original heavy roller of the automatic tensioning section to sink the heavy roller below the liquid surface of the water tank to achieve ultrasonic cleaning of the mesh belt. This avoids changing the original layout of the annealing furnace and thus improves the versatility of the annealing furnace with ultrasonic rust removal function.

[0007] The technical solution adopted by this utility model to solve its technical problem is as follows: The annealing furnace with ultrasonic rust removal function includes a heating zone, a heat preservation zone and an open zone. The mesh belt circulates between the heating zone, the heat preservation zone and the open zone. The open zone includes an automatic tensioning section. A gravity-sinking sag roller is set in the automatic tensioning section. The returning mesh belt passes through the bottom of the sag roller. The feature is that a water tank is set in the automatic tensioning section. The sag roller is arranged in the water tank. The mesh belt is located below the liquid surface in the water tank under the gravity of the sag roller. An ultrasonic transducer is arranged on the outer wall of the water tank.

[0008] Preferably, guide rails are provided on the inner walls of opposite sides of the water tank, and the ends of the heavy rollers are respectively fitted into the guide rails on the corresponding sides.

[0009] Preferably, a receiving cavity is provided in the water tank, a heavy roller is arranged in the receiving cavity, and an ultrasonic transducer is arranged on the outer wall of the receiving cavity.

[0010] Preferably, the automatic tensioning section is provided with a housing, the water tank is arranged inside the housing, and the idler rollers are provided inside the housing, with the idler rollers located on both sides of the upper port of the water tank.

[0011] Preferably, the axis of the idler roller is parallel to the axis of the sag roller.

[0012] Preferably, the sag roller includes a roller housing, a through shaft is provided inside the roller housing, and support rings are provided at both ends of the roller housing to realize the coaxiality of the roller housing and the through shaft; a filling area is formed between the roller housing and the through shaft inside the roller housing.

[0013] Preferably, the two ends of the through shaft protrude from the corresponding support rings, and bearings and sliding seats are respectively fitted on the protruding parts at both ends of the through shaft to form the ends of the sag roller.

[0014] Preferably, the open area also includes a manual tensioning section and a drive section, with the automatic tensioning section located between the manual tensioning section and the drive section.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] In this annealing furnace with ultrasonic rust removal function, the original automatic tensioning section of the annealing furnace is modified, and the original heavy roller in the automatic tensioning section is used to sink the heavy roller below the liquid surface of the water tank to achieve ultrasonic cleaning of the mesh belt. Compared with the existing technology of using ultrasonic waves to clean the mesh belt, this method avoids changing the original layout of the annealing furnace, thereby improving its versatility.

[0017] The technical solution of this application has the advantage of simple structure, is suitable for use in various open annealing furnaces, and is also easy to upgrade and modify on old products on-site, replacing the original cotton cloth rust removal device or spike wheel rust removal device, and meeting the mesh belt continuous annealing production process of clean bottles and cans such as medicine bottles and cosmetic bottles.

[0018] The automatic tensioning section of this application has a large maintenance and repair space, and the sag roller has the strength of the original sag roller and a long service life. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of an annealing furnace with ultrasonic rust removal function.

[0020] Figure 2 This is a schematic diagram of the open area structure of an annealing furnace with ultrasonic rust removal function.

[0021] Figure 3 This is a schematic diagram of the automatic tensioning section structure of an annealing furnace with ultrasonic rust removal function.

[0022] Figure 4 for Figure 3 The section view along line AA after the ultrasonic generator is omitted.

[0023] The components include: 1. Heating zone; 2. Insulation zone; 3. Mesh belt; 4. Open zone; 5. Manual tensioning section; 6. Automatic tensioning section; 7. Drive section; 8. Ultrasonic transducer; 9. Idler roller; 10. Guide rail; 11. Duct roller; 12. Water tank; 13. Outer shell; 14. Ultrasonic generator; 15. Roller shell; 16. Filling zone; 17. Through shaft; 18. Support ring; 19. Sliding seat; 20. Bearing. Detailed Implementation

[0024] Figures 1-4 This is the preferred embodiment of the present invention, which is described below in conjunction with the appendix. Figures 1-4 The present invention will be further described below.

[0025] like Figure 1 As shown, similar to existing technology, the annealing furnace includes a heating zone 1, a heat preservation zone 2, and an open zone 4 arranged in sequence. The outgoing mesh belt 3 carries the glass products through the heating zone 1 and the heat preservation zone 2 in sequence and is output at the open zone 4. Then the mesh belt 3 returns to the heating zone 1 to form a cycle.

[0026] Combination Figure 2 Similar to existing technologies, the open area 4 includes a manually tensioned section 5, an automatically tensioned section 6, and a drive section 7 arranged sequentially. The specific structures of the manually tensioned section 5 and the drive section 7 are the same as those in existing technologies and will not be described in detail here. The drive section 7 provides power for the operation of the mesh belt 3, while the manually tensioned section 5 connects to the outlet of the insulation zone 2 and mainly adjusts the thermal expansion of the mesh belt 3 to achieve a reasonable tension.

[0027] like Figure 3 As shown, the automatic tensioning section 6 includes a housing 13. Similar to the prior art, a heavy roller 11 is provided inside the housing 13. The heavy roller 11 hangs down by its own weight inside the housing 13. The returning mesh belt 3 passes through the bottom of the heavy roller 11 and is pressed down by the gravity of the heavy roller 11, so that the mesh belt 3 is in a tensioned state.

[0028] Unlike existing technologies, a water tank 12 is provided at the bottom inside the outer casing 13. A receiving cavity, wider at the top and narrower at the bottom, is provided within the water tank 12, containing clean water. Ultrasonic transducers 8 are respectively installed on the outer surfaces of the side walls of the receiving tank. Similar to existing technologies, an ultrasonic generator 14, connected to all ultrasonic transducers 8, is also provided in the automatic tensioning section 6. A guide rail 10 is provided on each of the opposite inner walls inside the receiving cavity. The aforementioned descent roller 11 is located within the water tank 12, with both ends of the descent roller 11 respectively engaged in the corresponding guide rail 10. The guide rails 10 on both sides limit and guide the descent roller 11, allowing it to move vertically within the water tank 12.

[0029] Two idler rollers 9 are arranged side by side inside the outer casing 13. The axes of the two idler rollers 9 are parallel to the axis of the heavy roller 11. The two idler rollers 9 are located on both sides above the water tank 12. The outgoing mesh belt 3 passes directly over the top of the outer casing 13. The returning mesh belt 3 first passes one idler roller 9 and then extends diagonally downward into the water tank 12. After passing around the heavy roller 11, it extends diagonally upward and, after being output from the water tank 12, passes over the other idler roller 9 and extends towards the feed end of the annealing furnace.

[0030] Combination Figure 4 The drooping roller 11 includes a cylindrical roller housing 15. Support rings 18 are respectively provided at the ends of the roller housing 15. A through shaft 17 is provided inside the roller housing 15, with its axis collinear with the axis of the roller housing 15. The ends of the through shaft 17 extend from the center of the corresponding support ring 18 to the outside of the roller housing 15. Bearings 20 are respectively fitted at the ends of the through shaft 17, and sliding seats 19 are fitted outside the bearings 20 at both ends. The sliding seats 19 at both ends are engaged in the guide rails 10 on the corresponding sides of the receiving cavity.

[0031] The support rings 18 at both ends of the roller housing 15 provide support, ensuring that the roller housing 15 and the through shaft 17 are coaxial, while also providing a sealing function. Inside the roller housing 15, a filling area 16 is formed between the roller housing 15 and the through shaft 17, and this filling area 16 is filled with concrete. By filling with concrete, the heavy-duty roller 11 achieves a large self-weight at a relatively low cost, thereby tensioning the mesh belt 3 and simultaneously submerging the mesh belt 3 below the liquid surface in the water tank 12 to achieve ultrasonic cleaning of the mesh belt 3.

[0032] The specific working process and working principle are as follows:

[0033] When the annealing furnace is working, the outgoing mesh belt 3 carries the glass products through the heating zone 1 and the heat preservation zone 2 in sequence and is output at the open zone 4. Then the mesh belt 3 returns to the heating zone 1 to form a cycle. During the cycle, the mesh belt 3 is powered by the drive section 7 and the weight roller 11 in the automatic tensioning section 6 applies downward pressure to the mesh belt 3 to maintain tension.

[0034] When the returning conveyor belt 3 passes through the automatic tensioning section 6, it first passes one idler roller 9 and then extends diagonally downward into the water tank 12. After passing over the heavy-duty roller 11, it extends diagonally upward and exits from the water tank 12, passing over another idler roller 9 before extending towards the feed end of the annealing furnace. During its passage through the water tank 12, the conveyor belt 3 sinks below the liquid surface of the inner cavity of the water tank 12 under the pressure of the heavy-duty roller 11. At this time, the ultrasonic generator 14 is activated, causing the ultrasonic transducer 8 to vibrate at high frequency, thereby achieving ultrasonic cleaning of the conveyor belt 3 within the water tank 12.

[0035] As described above, in the technical solution of this application, the downward pressure of the conveyor belt 3 by the gravity roller 11 installed inside the annealing furnace causes the conveyor belt 3 to sink below the liquid surface of the water tank 12, thus achieving ultrasonic cleaning of the conveyor belt 3. Therefore, only minor modifications are needed to the automatic tensioning section 6, such as the arrangement of the water tank 12. Compared with the ultrasonic cleaning solutions in the prior art, there is no need to add equipment to the original layout of the annealing furnace, thus improving its versatility. Furthermore, in actual implementation, while achieving the same technical effect, it also greatly reduces the complexity of the structure and lowers the cost.

[0036] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from its technical solution shall still fall within the protection scope of this utility model.

Claims

1. An annealing furnace with ultrasonic rust removal function, comprising a heating zone (1), a heat preservation zone (2), and an open zone (4), wherein a mesh belt (3) circulates between the heating zone (1), the heat preservation zone (2), and the open zone (4), the open zone (4) comprising an automatic tensioning section (6), wherein a gravity-driven sag roller (11) is provided in the automatic tensioning section (6), and the returning mesh belt (3) passes through the bottom of the sag roller (11), characterized in that: A water tank (12) is provided in the automatic tensioning section (6), a heavy roller (11) is arranged in the water tank (12), and the mesh belt (3) is located below the liquid surface in the water tank (12) under the gravity of the heavy roller (11). An ultrasonic transducer (8) is arranged on the outer wall of the water tank (12).

2. The annealing furnace with ultrasonic rust removal function according to claim 1, characterized in that: Guide rails (10) are respectively provided on the inner walls of opposite sides of the water tank (12), and the ends of the heavy roller (11) are respectively clamped in the guide rails (10) on the corresponding sides.

3. The annealing furnace with ultrasonic rust removal function according to claim 1 or 2, characterized in that: A receiving cavity is provided in the water tank (12), and a heavy roller (11) is arranged in the receiving cavity. An ultrasonic transducer (8) is arranged on the outer wall of the receiving cavity.

4. The annealing furnace with ultrasonic rust removal function according to claim 1, characterized in that: The automatic tensioning section (6) is provided with a housing (13), and a water tank (12) is arranged inside the housing (13). A roller (9) is provided inside the housing (13), and the roller (9) is located on both sides of the upper port of the water tank (12).

5. The annealing furnace with ultrasonic rust removal function according to claim 4, characterized in that: The axis of the idler roller (9) is parallel to the axis of the sag roller (11).

6. The annealing furnace with ultrasonic rust removal function according to claim 2, characterized in that: The heavy sag roller (11) includes a roller housing (15), a through shaft (17) is provided inside the roller housing (15), and support rings (18) are provided at both ends of the roller housing (15) to realize the coaxiality of the roller housing (15) and the through shaft (17); a filling area (16) is formed between the roller housing (15) and the through shaft (17) inside the roller housing (15).

7. The annealing furnace with ultrasonic rust removal function according to claim 6, characterized in that: The two ends of the through shaft (17) protrude from the corresponding support rings (18). Bearings (20) and sliding seats (19) are respectively installed on the protruding parts at both ends of the through shaft (17) to form the ends of the heavy roller (11).

8. The annealing furnace with ultrasonic rust removal function according to claim 1, characterized in that: The open area (4) also includes a manual tensioning section (5) and a drive section (7), with an automatic tensioning section (6) located between the manual tensioning section (5) and the drive section (7).

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