A heating device for finish nut hot forging processing

Abstract

The utility model discloses a kind of heating devices of finish rolling nut hot forging processing, including heating furnace and insert in the feed chute plate and discharge chute plate of both ends of heating furnace, high-frequency heating mechanism is equipped in the heating furnace, high-frequency heating mechanism includes a set of opposite mounting seat, driving motor, a set of worm, a set of rotary drum, a set of worm wheel, high-frequency heater and a set of electromagnetic coil.The beneficial effects of the utility model are that high-frequency heating mechanism is equipped in the heating furnace, a set of rotary drum is driven by driving motor and rotates in the same direction, so that bar stock can be rotated and conveyed, cooperate, a set of electromagnetic coil at the top, bar stock is uniformly heated based on electromagnetic induction principle, bar stock is heated more evenly, reduces defect generation, and is convenient for subsequent hot forging treatment.

Description

Technical Field

[0001] This utility model relates to the field of hot forging technology for nuts, specifically a heating device for hot forging of precision rolled nuts. Background Technology

[0002] Precision-rolled nuts are a key component of anchorages for precision-rolled threaded steel bars, also known as precision-rolled threaded steel bar nuts. They are mainly used to connect and anchor precision-rolled threaded steel bars. Their applications are wide-ranging, covering large-scale water conservancy projects, continuous beams and large frame structures in industrial and civil buildings, large and medium-span bridges in highways and railways, nuclear power plants, ground anchors, foundation pit anchoring, slope anchoring, and high-speed railway foundation construction, among other engineering fields.

[0003] The core process of hot forging precision rolled nuts involves heating the bar stock to 800-1200℃ and then forging it using a press or forging hammer to form a hexagonal shape and a preliminary thread structure. Existing hot forging furnaces typically use cylinders to push the bar stock, combined with electromagnetic heating coils, to achieve heating. However, because the bar stock is placed on a slotted plate, uneven temperatures occur on the upper and lower surfaces, easily leading to defects such as oxidation, decarburization, and cracking, which affect subsequent hot forging processes. Utility Model Content

[0004] To address the above deficiencies, this utility model provides a heating device for hot forging of precision rolled nuts, thereby solving the heating problem in hot forging of precision rolled nuts.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A heating device for hot forging of precision rolled nuts includes a heating furnace and a feed chute and a discharge chute inserted at both ends of the heating furnace. The heating furnace is equipped with a high-frequency heating mechanism.

[0007] The high-frequency heating mechanism includes a set of opposing mounting seats, a drive motor, a set of worm gears, a set of rotating drums, a set of worm wheels, a high-frequency heater, and a set of electromagnetic coils. The set of opposing mounting seats is installed on both sides inside the heating furnace. The drive motor is horizontally installed at the rear end of the left mounting seat. The set of worm gears is movably installed on the left mounting seat, and the rear end of the worm gear is connected to the rotating end of the drive motor. The set of rotating drums is movably inserted between the set of opposing mounting seats. The set of worm wheels is installed at the left end of the set of rotating drums and meshes with the corresponding worm gears. The high-frequency heater is installed at the rear end of the heating furnace, and the set of electromagnetic coils is installed at the front end of the high-frequency heater, located above the set of rotating drums.

[0008] Furthermore, a pushing mechanism is connected to the left end of the feeding trough plate. The pushing mechanism includes a guide plate, a first pushing cylinder, a pushing plate, a second pushing cylinder, and a pushing rod. The guide plate is installed on the left end of the feeding trough plate, the first pushing cylinder is installed on the right side of the guide plate, the pushing plate is installed on the telescopic end of the first pushing cylinder, the second pushing cylinder is located on the left end of the feeding trough plate, and the pushing rod is installed on the telescopic end of the second pushing cylinder, thereby realizing automatic pushing of the bar stock.

[0009] Furthermore, the guide plate has a bar guide groove.

[0010] Furthermore, a set of worm gears are connected by a coupling, enabling the drive motor to drive the set of worm gears to rotate synchronously.

[0011] Furthermore, a set of opposite mounting bases are respectively provided with grooves, and the inner ends of the feed trough plate and the discharge trough plate are respectively fixed in the corresponding grooves, so that the bar stock can pass through the feed trough plate, a set of rotating rollers and the discharge trough plate in sequence.

[0012] Furthermore, the discharge chute is inclined, and the heated bar stock is finally discharged through the discharge chute for subsequent hot forging treatment.

[0013] This utility model provides a heating device for hot forging of precision rolled nuts, which has the following advantages: by setting a high-frequency heating mechanism in the heating furnace, a set of rotating drums are driven by a drive motor to rotate in the same direction, so that the bar can be rotated and conveyed. In conjunction with a set of electromagnetic coils at the top, the bar is heated evenly based on the principle of electromagnetic induction. The bar is heated more evenly, reducing the occurrence of defects and facilitating subsequent hot forging. Attached Figure Description

[0014] Figure 1 This is a top view of the heating device for hot forging of precision rolled nuts according to the present invention.

[0015] Figure 2 This is a schematic diagram of the material pushing mechanism of this utility model.

[0016] Figure 3 This is a schematic diagram of a set of rotating rollers according to the present invention.

[0017] Figure 4 This is a schematic diagram of the mounting base on the left side of this utility model.

[0018] Figure 5 This is a schematic diagram of the electromagnetic coil described in this utility model.

[0019] Figure 6 This is a schematic diagram of the discharge trough plate described in this utility model.

[0020] In the diagram: 1. Heating furnace; 2. Feed chute; 3. Discharge chute; 4. Mounting base; 5. Drive motor; 6. Worm gear; 7. Rotating drum; 8. Worm wheel; 9. High-frequency heater; 10. Electromagnetic coil; 11. Guide plate; 12. Pushing cylinder one; 13. Pushing plate; 14. Pushing cylinder two; 15. Pushing rod; 16. Bar guide groove; 17. Coupling; 18. Groove. Detailed Implementation

[0021] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0022] Please see Figures 1 to 6 As shown, this application embodiment provides a heating device for hot forging of precision rolled nuts, including a heating furnace 1 and a feed chute 2 and a discharge chute 3 inserted at both ends of the heating furnace 1. The heating furnace 1 is equipped with a high-frequency heating mechanism. The high-frequency heating mechanism includes a set of opposing mounting seats 4, a drive motor 5, a set of worm gears 6, a set of rotating drums 7, a set of worm wheels 8, a high-frequency heater 9, and a set of electromagnetic coils 10. The set of opposing mounting seats 4 are installed on both sides inside the heating furnace 1. The drive motor 5 is horizontally installed at the rear end of the left mounting seat 4. The set of worm gears 6 is movably installed on the left mounting seat 4 through a fastening bearing, and the rear end of the worm gear 6 is connected to the rotating end of the drive motor 5. The set of rotating drums 7 is movably inserted between the set of opposing mounting seats 4 through a fastening bearing. The set of worm wheels 8 is installed at the left end of the set of rotating drums 7 and meshes with the corresponding worm gears 6. The high-frequency heater 9 is installed at the rear end of the heating furnace 1, and the set of electromagnetic coils 10 is installed at the front end of the high-frequency heater 9, located above the set of rotating drums 7.

[0023] In this embodiment, the bar stock is first fed sequentially onto a set of rotating drums 7 via the feed chute 2. The drive motor 5 operates, driving a set of worm gears 6 to rotate, which in turn drives the set of rotating drums 7 to rotate in the same direction via a set of worm wheels 8. The set of rotating drums 7 rotates and conveys the bar stock to the right through rotational friction. A set of electromagnetic coils 10 is located above the set of rotating drums 7. The high-frequency heater 9 is equipped with a high-frequency power supply, which can convert mains power into high-frequency alternating current and generate a rapidly changing magnetic field through the set of electromagnetic coils 10. This magnetic field penetrates the heated bar stock and induces electromagnetic induction inside it, thereby achieving uniform heating, reducing defects, and facilitating subsequent hot forging.

[0024] In some embodiments, a pushing mechanism is connected to the left end of the feed trough plate 2. The pushing mechanism includes a guide plate 11, a first pushing cylinder 12, a pushing plate 13, a second pushing cylinder 14, and a pushing rod 15. The guide plate 11 is installed at the left end of the feed trough plate 2, the first pushing cylinder 12 is installed on the right side of the guide plate 11, the pushing plate 13 is installed on the telescopic end of the first pushing cylinder 12, the second pushing cylinder 14 is located at the left end of the feed trough plate 2, and the pushing rod 15 is installed on the telescopic end of the second pushing cylinder 14.

[0025] and in conjunction with the appendix Figure 2 As shown, the bar stock is uniformly fed to the bar stock guide groove 16 by a pusher plate feeder. The extension end of the pusher cylinder 12 extends and pushes the bar stock onto the feed trough plate 2 through the pusher plate 13. In conjunction with the pusher cylinder 14, the bar stock is pushed sequentially between a set of rotating rollers 7 through the pusher rod 15, which facilitates the heating treatment.

[0026] In some embodiments, the guide plate 11 has a bar guide groove 16.

[0027] In some embodiments, a set of worm gears 6 are connected by a coupling 17, so that the drive motor 5 drives the set of worm gears 6 to rotate synchronously.

[0028] In some embodiments, a set of opposite mounting bases 4 are respectively provided with grooves 18, and the inner ends of the feed trough plate 2 and the discharge trough plate 3 are respectively fixed in the corresponding grooves 18, so that the bar material can pass through the feed trough plate 2, a set of rotating rollers 7 and the discharge trough plate 3 in sequence.

[0029] In some embodiments, the discharge chute 3 is inclined, and the heated bar stock is finally discharged through the discharge chute 3 for subsequent hot forging.

[0030] The above technical solution only embodies the preferred technical solution of this utility model. Any changes that may be made by those skilled in the art to certain parts of it embody the principle of this utility model and fall within the protection scope of this utility model.

Claims

1. A heating device for hot forging of precision rolled nuts, comprising a heating furnace (1) and a feed chute (2) and a discharge chute (3) inserted at both ends of the heating furnace (1), characterized in that, The heating furnace (1) is equipped with a high-frequency heating mechanism; The high-frequency heating mechanism includes a set of opposing mounting seats (4), a drive motor (5), a set of worm gears (6), a set of rotating drums (7), a set of worm wheels (8), a high-frequency heater (9), and a set of electromagnetic coils (10). The set of opposing mounting seats (4) is installed on both sides inside the heating furnace (1). The drive motor (5) is horizontally installed at the rear end of the left mounting seat (4). The set of worm gears (6) is movably installed on the left mounting seat (4), and the rear end of the worm gear (6) is connected to the rotating end of the drive motor (5). The set of rotating drums (7) is movably inserted between the set of opposing mounting seats (4). The set of worm wheels (8) is installed at the left end of the set of rotating drums (7) and meshes with the corresponding worm gears (6). The high-frequency heater (9) is installed at the rear end of the heating furnace (1). The set of electromagnetic coils (10) is installed at the front end of the high-frequency heater (9) and is located above the set of rotating drums (7).

2. The heating device for hot forging of precision rolled nuts according to claim 1, characterized in that, The left end of the feed trough plate (2) is connected to a pushing mechanism. The pushing mechanism includes a guide plate (11), a first pushing cylinder (12), a pushing plate (13), a second pushing cylinder (14), and a pushing rod (15). The guide plate (11) is installed on the left end of the feed trough plate (2). The first pushing cylinder (12) is installed on the right side of the guide plate (11). The pushing plate (13) is installed on the telescopic end of the first pushing cylinder (12). The second pushing cylinder (14) is located on the left end of the feed trough plate (2). The pushing rod (15) is installed on the telescopic end of the second pushing cylinder (14).

3. The heating device for hot forging of precision rolled nuts according to claim 2, characterized in that, The guide plate (11) has a bar guide groove (16).

4. The heating device for hot forging of precision rolled nuts according to claim 1, characterized in that, A set of worm gears (6) are connected by a coupling (17).

5. The heating device for hot forging of precision rolled nuts according to claim 1, characterized in that, A set of opposite mounting bases (4) have grooves (18) respectively, and the inner ends of the feed trough plate (2) and the discharge trough plate (3) are respectively fixed in the corresponding grooves (18).

6. The heating device for hot forging of precision rolled nuts according to claim 1, characterized in that, The discharge trough plate (3) is set at an angle.

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