Double-end screw heat treatment device

Abstract

The utility model discloses a double-end screw heat treatment device which comprises a cleaning device, the cleaning device comprises a first cleaning pool and a second cleaning pool, a first cleaning pump is arranged on the right side of the first cleaning pool, an outlet of the first cleaning pump is connected with a first spraying pipe, a first conveying belt is arranged below the first spraying pipe, and a second conveying belt is arranged below the second cleaning pool. The right side of the first conveying belt is connected with a quenching furnace, a quenching pool is arranged on the lower right portion of the quenching furnace, a tempering furnace is arranged on the right side of the quenching pool, a fifth conveying belt is arranged on the right side of the tempering furnace, a second sewage pool is arranged below the fifth conveying belt, and a second cleaning pump is arranged on the right side of the second sewage pool. And an outlet of the second cleaning pump is connected with a second spraying pipe, and a second cleaning pool is arranged on the right side of the second cleaning pump. The device is simple in structure, high in automation degree and capable of effectively solving the technical problems in the prior art and creating good economic benefits.

Description

Technical Field

[0001] This utility model belongs to the field of screw manufacturing technology, specifically relating to a heat treatment device for double-ended screws. Background Technology

[0002] Double-ended studs are used for fixing and connecting machinery. They have threads at both ends and a central threaded rod, and come in various sizes. They are commonly used in mining machinery, bridges, automobiles, motorcycles, boiler steel structures, cranes, large-span steel structures, and large buildings.

[0003] To improve the various properties of double-ended screws, heat treatment is required.

[0004] During the heat treatment process, the surface of the screws needs to be cleaned before quenching and tempering. However, current heat treatment equipment has a complex structure and low automation, which affects production efficiency. Utility Model Content

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a double-headed screw heat treatment device, comprising a cleaning device, the cleaning device comprising a first cleaning tank and a second cleaning tank, a first cleaning pump disposed on the right side of the first cleaning tank, a first spray pipe connected to the outlet of the first cleaning pump, a first conveyor belt disposed below the first spray pipe, a quenching furnace connected to the right side of the first conveyor belt, a quenching tank disposed below the right side of the quenching furnace, a tempering furnace disposed to the right side of the quenching tank, a fifth conveyor belt disposed to the right side of the tempering furnace, a second wastewater tank disposed below the fifth conveyor belt, a second cleaning pump disposed to the right side of the second wastewater tank, a second spray pipe connected to the outlet of the second cleaning pump, and a second cleaning tank disposed to the right side of the second cleaning pump.

[0006] Furthermore, a first inlet valve is installed between the first cleaning pump and the first cleaning tank, a first spray head is installed on the first spray pipe, a second inlet valve is installed between the second cleaning pump and the second cleaning tank, and a second spray head is installed on the second spray pipe.

[0007] Furthermore, a first natural gas branch pipe is installed inside the quenching furnace. The first natural gas branch pipe extends upward and connects to the natural gas main pipe. The natural gas main pipe is connected to the natural gas storage tank. A nozzle is installed on the first natural gas branch pipe located inside the quenching furnace. A second conveyor belt is arranged below the first natural gas branch pipe. The left side of the second conveyor belt is connected to the first conveyor belt. A first gas valve is also installed on the first natural gas branch pipe.

[0008] Furthermore, a second natural gas branch pipe is installed inside the tempering furnace. The second natural gas branch pipe extends upward and connects to the main natural gas pipe. A nozzle is installed on the second natural gas branch pipe located inside the tempering furnace. A fourth conveyor belt is arranged below the second natural gas branch pipe. The right side of the fourth conveyor belt is connected to a fifth conveyor belt. A second gas valve is also installed on the second natural gas branch pipe.

[0009] Furthermore, the quenching pool is equipped with a third conveyor belt, the left side of which is connected to the second conveyor belt, and the right side of which is connected to the fourth conveyor belt. Quenching liquid is added to the quenching pool, and the middle part of the third conveyor belt is immersed in the quenching liquid. The third conveyor belt is V-shaped, and its two ends extend out of the quenching pool.

[0010] Furthermore, the nozzles installed on the first and second natural gas branch pipes are of the same type and specification.

[0011] Furthermore, the quenching liquid used in this invention is composed of the following components by weight: 10-20 parts glucose, 1-5 parts ethanol, 3-8 parts pine oil, 5-10 parts sodium acetate, 1-3 parts sodium chloride, 3-6 parts foaming agent, 5-10 parts acetic acid, and 50-100 parts water.

[0012] Furthermore, the quenching temperature of the double-ended screws is controlled between 800℃ and 850℃. This temperature range ensures that the double-ended screws can be fully hardened to achieve the required hardness and strength. During the quenching process, the double-ended screws are heated to this temperature and then rapidly immersed in the quenching liquid for cooling to form a hard and wear-resistant surface. For tempering, the tempering temperature is generally between 200℃ and 400℃, with the specific temperature and time determined based on the required performance specifications.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] This invention, by adding a cleaning device including a first conveyor belt, a second conveyor belt, and a third conveyor belt, can replace the current manual cleaning of screws. This not only reduces the labor intensity of on-site personnel but also improves cleaning efficiency. Under the action of each conveyor belt, the double-ended screws sequentially complete the quenching and tempering processes, achieving automated heat treatment. This invention has a simple structure, a high degree of automation, effectively solves existing technical problems, and creates significant economic benefits. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the structure of a quenching furnace, a quenching pool, a tempering furnace, and a natural gas storage tank.

[0017] Figure 3 This is a schematic diagram of the first cleaning tank and the first cleaning pump.

[0018] Figure 4 This is a schematic diagram of the second cleaning tank, the second cleaning pump, and the fifth conveyor belt.

[0019] Figure 5 This is a schematic diagram of the third conveyor belt.

[0020] Figure 6 This is a schematic diagram of the nozzle.

[0021] Reference numerals: 1. First conveyor belt; 2. First sewage tank; 3. First cleaning tank; 4. First cleaning pump; 5. First spray pipe; 6. First spray head; 7. First water inlet valve; 8. Second conveyor belt; 9. Quenching furnace; 10. Third conveyor belt; 11. Quenching tank; 12. Fourth conveyor belt; 13. Tempering furnace; 14. First natural gas branch pipe; 15. First gas valve; 16. Second natural gas branch pipe; 17. Second hand valve; 18. Natural gas storage tank; 19. Natural gas main pipe; 20. Fifth conveyor belt; 21. Second sewage tank; 22. Second spray pipe; 23. Second spray head; 24. Second cleaning tank; 25. Second water inlet valve; 26. Second cleaning pump; 27. Nozzle. Detailed Implementation

[0022] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] like Figures 1-6As shown, a heat treatment device for double-headed screws includes a cleaning device. The cleaning device includes a first cleaning tank 3 and a second cleaning tank 24. A first cleaning pump 4 is arranged on the right side of the first cleaning tank 3. The outlet of the first cleaning pump 4 is connected to a first spray pipe 5. A first conveyor belt 1 is arranged below the first spray pipe 5. A quenching furnace 9 is connected to the right side of the first conveyor belt 1. A quenching tank 11 is arranged to the lower right of the quenching furnace 9. A tempering furnace 13 is arranged on the right side of the quenching tank 11. A fifth conveyor belt 20 is arranged on the right side of the tempering furnace 13. A second sewage tank 21 is arranged below the fifth conveyor belt 20. A second cleaning pump 26 is arranged on the right side of the second sewage tank 21. The outlet of the second cleaning pump 26 is connected to a second spray pipe 22. The second cleaning tank 24 is arranged on the right side of the second cleaning pump 26.

[0024] In this embodiment, a first water inlet valve 7 is installed between the first cleaning pump 4 and the first cleaning tank 3, a first spray head 6 is installed on the first spray pipe 5, a second water inlet valve 25 is installed between the second cleaning pump 26 and the second cleaning tank 24, and a second spray head 23 is installed on the second spray pipe 22.

[0025] In this embodiment, a first natural gas branch pipe 14 is installed inside the quenching furnace 9. The first natural gas branch pipe 14 extends upward and connects to the natural gas main pipe 19. The natural gas main pipe 19 is connected to the natural gas storage tank 18. A nozzle 27 is installed on the first natural gas branch pipe 14 located inside the quenching furnace 9. A second conveyor belt 8 is arranged below the first natural gas branch pipe 14. The left side of the second conveyor belt 8 is connected to the first conveyor belt 1. A first gas valve 15 is also installed on the first natural gas branch pipe 14.

[0026] In this embodiment, a second natural gas branch pipe 16 is installed inside the tempering furnace 13. The second natural gas branch pipe 16 extends upward and connects to the natural gas main pipe 19. A nozzle 27 is installed on the second natural gas branch pipe 16 located inside the tempering furnace 13. A fourth conveyor belt 12 is arranged below the second natural gas branch pipe 16. The right side of the fourth conveyor belt 12 is connected to the fifth conveyor belt 20. A second gas valve 17 is also installed on the second natural gas branch pipe 16.

[0027] In this embodiment, the quenching pool 11 is provided with a third conveyor belt 10. The left side of the third conveyor belt 10 is connected to the second conveyor belt 8, and the right side of the third conveyor belt 10 is connected to the fourth conveyor belt 12. Quenching liquid is added to the quenching pool 11, and the middle part of the third conveyor belt 10 is immersed in the quenching liquid. The third conveyor belt 10 is V-shaped, and both ends of the third conveyor belt 10 extend out of the quenching pool 11.

[0028] In practical use, the double-ended screws are first placed on the first conveyor belt 1. Then, the first cleaning pump 4 is started, drawing clean water from the first cleaning tank 2. The clean water is sprayed out through the first spray head 6 on the first spray pipe 5 to clean the stains on the double-ended screws. The wastewater from the cleaning flows into the first wastewater tank 2. After cleaning, the double-ended screws enter the quenching furnace 9, where they are conveyed by the second conveyor belt 8 and quenched at a temperature controlled between 800°C and 850°C. After quenching, the double-ended screws are immersed in the quenching liquid by the third conveyor belt 10. After quenching, the double-ended screws are then moved into the tempering furnace 13 by the fourth conveyor belt 12, where the tempering temperature is controlled between 200°C and 400°C. After the tempering process is completed, the double-ended screws are conveyed onto the fifth conveyor belt 20. At this time, the second cleaning pump 26 is started, and clean water from the second cleaning tank 24 is sprayed out from the second spray head 23 on the second spray pipe 22 to clean the tempered double-ended screws. After the second cleaning, the screws are transported by workers to the finished product packaging workshop for sale.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description. Therefore, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this utility model, and no reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A double-ended screw heat treatment apparatus, characterized by: The utility model provides a cleaning device, including first cleaning pool and second cleaning pool, the right side of first cleaning pool is provided with first cleaning pump, the outlet of first cleaning pump is connected with first spray pipe, the lower side of first spray pipe is provided with first conveying belt, the right side of first conveying belt is connected with quenching furnace, the lower right side of quenching furnace is provided with quenching pool, the right side of quenching pool is provided with tempering furnace, the right side of tempering furnace is provided with fifth conveying belt, the lower side of fifth conveying belt is provided with second sewage pool, the right side of second sewage pool is provided with second cleaning pump, the outlet of second cleaning pump is connected with second spray pipe, the right side of second cleaning pump is provided with second cleaning pool.

2. The double-end screw heat treatment apparatus according to claim 1, characterized in that: The first water inlet valve is installed between the first cleaning pump and the first cleaning pool, the first spray head is installed on the first spray pipe, the second water inlet valve is installed between the second cleaning pump and the second cleaning pool, and the second spray head is installed on the second spray pipe.

3. The double-end screw heat treatment apparatus according to claim 1, wherein: The first natural gas branch pipe is installed in the quenching furnace, the first natural gas branch pipe is connected with the natural gas main pipe upwardly, the natural gas main pipe is connected with the natural gas storage tank, the nozzle is installed on the first natural gas branch pipe in the quenching furnace, the second conveying belt is arranged below the first natural gas branch pipe, the left side of the second conveying belt is connected with the first conveying belt, and the first gas valve is installed on the first natural gas branch pipe.

4. The double-end screw heat treatment apparatus of claim 1, wherein: The second natural gas branch pipe is installed in the tempering furnace, the second natural gas branch pipe is connected with the natural gas main pipe upwardly, the nozzle is installed on the second natural gas branch pipe in the tempering furnace, the fourth conveying belt is arranged below the second natural gas branch pipe, the right side of the fourth conveying belt is connected with the fifth conveying belt, and the second gas valve is installed on the second natural gas branch pipe.

5. The double-end screw heat treatment apparatus of claim 1, wherein: The third conveying belt is arranged in the quenching pool, the left side of the third conveying belt is connected with the second conveying belt, the right side of the third conveying belt is connected with the fourth conveying belt, the quenching liquid is added in the quenching pool, the third conveying belt is immersed in the quenching liquid in the middle part, the third conveying belt is in the shape of "V", and the first end and the second end of the third conveying belt extend out of the quenching pool.

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