High-frequency electric heating furnace for metal tube blank

Abstract

The utility model discloses a high-frequency electric heating furnace for metal tube blanks, which belongs to the technical field of electric heating furnaces and comprises a heating box, a T-shaped connecting plate is fixed at the bottom of the heating box, bottom transverse seats are fixed at two ends of the T-shaped connecting plate, and a plurality of electric heating tubes are uniformly distributed in the heating box. A sealing box door is arranged at one end of the heating box, a plurality of rotatable clamping assemblies are evenly distributed in the sealing box door, and the multiple rotatable clamping assemblies are arranged on the sealing box door, so that the clamping range can be flexibly adjusted, metal pipe blanks with different diameters can be adapted, the frequency of replacing clamps is reduced, the operation of a second driving motor is reduced, and the working efficiency is improved. The sealing box door can drive a metal pipe blank to rotate in the heating process, the pipe is heated more evenly, the quality and consistency of subsequent machining are improved, the sealing box door can move flexibly through operation of the two first driving motors, and metal pipes can be loaded and unloaded conveniently.

Description

Technical Field

[0001] This utility model belongs to the field of electric heating furnace technology, specifically relating to a high-frequency electric heating furnace for metal tube blanks. Background Technology

[0002] High-frequency electric heating furnaces are widely used in the processing of metal tube blanks, especially in the manufacturing of finned tubes. They are mainly used for the heat treatment of metal tubes so that subsequent processes such as fin welding and bending can be carried out. Traditional high-frequency electric heating furnaces usually use a fixed heating chamber, and the metal tubes are fed into the heating area for heating through a conveying mechanism.

[0003] Most heating furnaces use fixed-size clamping mechanisms, which are difficult to adapt to metal tubes of different diameters. Especially in the processing of finned tubes, different specifications of tubes require frequent changes of clamps, affecting production efficiency. Traditional heating methods usually use static heating, and the metal tubes cannot rotate during the heating process, resulting in uneven heating and affecting the quality of subsequent processing. To address this, we designed a high-frequency electric heating furnace for metal tube blanks to provide an alternative technical solution to the above-mentioned technical problems. Utility Model Content

[0004] The purpose of this utility model is to provide a high-frequency electric heating furnace for metal tube blanks to solve the problems mentioned in the background art during the use of the existing technology.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-frequency electric heating furnace for metal tube blanks, including a heating box, a T-shaped connecting plate fixed to the bottom of the heating box, bottom transverse seats fixed to both ends of the T-shaped connecting plate, a plurality of electric heating tubes evenly distributed inside the heating box, a sealed box door provided at one end of the heating box, and a plurality of rotatable clamping components evenly distributed inside the sealed box door.

[0006] Preferably, a first drive motor is bolted to one end of the bottom transverse seat, and a transverse threaded rod is fixed to the output end of the first drive motor. The transverse threaded rod passes through the interior of the sealed box door and is threadedly connected to the sealed box door.

[0007] Preferably, the clamping assembly includes a circular rotating block, one end of which is rotatably connected to a plurality of transverse rotating columns via a pin, one end of which is rotatably connected to a rectangular sliding column via a pin, a circular rotating component is slidably connected to the outer side of the rectangular sliding column, a rectangular clamping block is fixed to the bottom of the rectangular sliding column, and a plurality of gear blocks are evenly distributed and fixed to the outer side of the circular rotating component, and two connected circular rotating components are meshed and connected through the gear blocks.

[0008] Preferably, vertical sliders are fixed on both sides of the rectangular sliding column, and a vertical groove is provided inside the circular rotating component. The rectangular sliding column and the circular rotating component are slidably connected by the cooperation of the vertical sliders and the vertical groove.

[0009] Preferably, an L-shaped mounting plate is fixed to one end of the sealed box door, and a second drive motor is bolted to one end of the L-shaped mounting plate. A drive gear is fixed to the output end of the second drive motor, and the drive gear meshes with one of the circular rotating parts.

[0010] Preferably, a U-shaped mounting bracket is fixed to one end of the sealed box door, and a transverse hydraulic cylinder is fixed to both sides inside the U-shaped mounting bracket. The output end of the transverse hydraulic cylinder is fixedly connected to the transverse moving plate, and the circular rotating block is located inside the transverse moving plate and is rotatably connected to the transverse moving plate through a bearing.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This invention features multiple rotatable clamping components on the sealed box door, allowing for flexible adjustment of the clamping range to accommodate metal tube blanks of different diameters. This reduces the frequency of clamp changes, improves production efficiency, and enables the metal tube blank to rotate during heating. The operation of the second drive motor ensures more uniform heating of the tube, preventing localized overheating or underheating and improving the quality and consistency of subsequent processing. The operation of the two first drive motors allows the sealed box door to move flexibly, facilitating the loading and unloading of metal tubes, reducing manual operation difficulty, improving production efficiency, and simultaneously reducing safety hazards in high-temperature environments. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the bottom horizontal seat and the T-shaped connecting plate of this utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the sealing box door and the U-shaped mounting bracket of this utility model;

[0016] Figure 4 This is a schematic diagram of the structure of the sealing box door and the circular rotating component of this utility model;

[0017] Figure 5 This is a schematic diagram of the structure of the transverse hydraulic cylinder and the transverse moving plate of this utility model;

[0018] Figure 6 This is a schematic diagram of the structure of the sealing box door and the circular rotating component of this utility model;

[0019] Figure 7This is a schematic diagram of the structure of the transverse moving plate and the circular rotating block of this utility model.

[0020] In the diagram: 1. Bottom horizontal seat; 2. T-shaped connecting plate; 3. Heating box; 4. Sealed box door; 5. U-shaped mounting bracket; 6. First drive motor; 7. Horizontal threaded rod; 8. Horizontal hydraulic cylinder; 9. Circular rotating component; 10. Rectangular sliding column; 11. Rectangular clamping block; 12. Horizontal moving plate; 13. Second drive motor; 14. L-shaped mounting plate; 15. Drive gear; 16. Circular rotating block; 17. Horizontal rotating column. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Reference Figure 1-7 A high-frequency electric heating furnace for metal tube blanks includes a heating box 3, a T-shaped connecting plate 2 fixed to the bottom of the heating box 3, bottom horizontal seats 1 fixed to both ends of the T-shaped connecting plate 2, multiple electric heating tubes evenly distributed inside the heating box 3, a sealed box door 4 provided at one end of the heating box 3, and multiple rotatable clamping components evenly distributed inside the sealed box door 4.

[0023] A first drive motor 6 is bolted to one end of the bottom transverse seat 1. A transverse threaded rod 7 is fixed to the output end of the first drive motor 6. The transverse threaded rod 7 passes through the interior of the sealing box door 4 and is threadedly connected to the sealing box door 4. Through the operation of the two first drive motors 6, the two transverse threaded rods 7 can rotate, so that the sealing box door 4 can move between the two bottom transverse seats 1, and thus the sealing box door 4 can move at one end of the heating box 3.

[0024] The clamping assembly includes a circular rotating block 16. One end of the circular rotating block 16 is rotatably connected to a plurality of transverse rotating columns 17 via a pin. One end of the transverse rotating column 17 is rotatably connected to a rectangular sliding column 10 via a pin. A circular rotating component 9 is slidably connected to the outside of the rectangular sliding column 10. A rectangular clamping block 11 is fixed to the bottom of the rectangular sliding column 10. A plurality of gear blocks are evenly distributed and fixed to the outside of the circular rotating component 9. Two connected circular rotating components 9 are meshed and connected through the gear blocks.

[0025] Vertical sliders are fixed on both sides of the rectangular sliding column 10. A vertical groove is provided inside the circular rotating part 9. The rectangular sliding column 10 and the circular rotating part 9 are slidably connected by the cooperation of the vertical sliders and the vertical grooves. The vertical sliders and the vertical grooves allow the rectangular sliding column 10 to slide inside the circular rotating part 9, so that multiple rectangular sliding columns 10 can move toward the metal tube blank, so that the rectangular clamping block 11 can clamp the metal tube blank.

[0026] An L-shaped mounting plate 14 is fixed to one end of the sealed box door 4. A second drive motor 13 is bolted to one end of the L-shaped mounting plate 14. An active gear 15 is fixed to the output end of the second drive motor 13. The active gear 15 meshes with one of the circular rotating parts 9. Through the operation of the second drive motor 13, the active gear 15 can rotate. The rotation of the active gear 15 causes one of the circular rotating parts 9 to rotate, thereby enabling multiple circular rotating parts 9 to rotate, so as to facilitate uniform heating of the metal tube blank.

[0027] Here, when it is necessary to clamp metal tube blanks of different specifications, the movement of the circular rotating block 16 causes the rectangular sliding column 10 to move inside the circular rotating component 9 via the transverse rotating column 17. This, in turn, causes the rectangular sliding column 10 to drive the rectangular clamping block 11 to move, enabling the rectangular clamping block 11 to clamp metal tube blanks of different specifications. The operation of the second drive motor 13 causes the drive gear 15 to rotate. The rotation of the drive gear 15 causes one of the circular rotating components 9 to rotate, which in turn causes multiple circular rotating components 9 to rotate, allowing the metal tube blanks to rotate inside the heating chamber 3 for uniform heating.

[0028] A U-shaped mounting bracket 5 is fixed to one end of the sealed box door 4. Horizontal hydraulic cylinders 8 are fixed to both sides inside the U-shaped mounting bracket 5. The output end of the horizontal hydraulic cylinder 8 is fixedly connected to the horizontal moving plate 12. The circular rotating block 16 is located inside the horizontal moving plate 12 and is rotatably connected to the horizontal moving plate 12 via bearings. This allows the horizontal hydraulic cylinder 8 to operate, enabling the horizontal moving plate 12 to move inside the U-shaped mounting bracket 5. The movement of the horizontal moving plate 12 causes multiple rectangular sliding columns 10 to move inside the circular rotating part 9, allowing the multiple rectangular sliding columns 10 to move towards the metal tube blank so that the rectangular clamping block 11 can clamp the metal tube blank.

[0029] Working principle: When metal tube blanks of different specifications need to be clamped, the operation of the transverse hydraulic cylinder 8 causes the transverse moving plate 12 to move inside the U-shaped mounting bracket 5. The movement of the transverse moving plate 12 causes the circular rotating block 16 to move. The movement of the circular rotating block 16 causes the rectangular sliding column 10 to move inside the circular rotating component 9 through the transverse rotating column 17. In turn, the rectangular sliding column 10 drives the rectangular clamping block 11 to move, so that the rectangular clamping block 11 can clamp metal tube blanks of different specifications. Through the operation of the second drive motor 13, the drive gear 15 can rotate. The rotation of the drive gear 15 causes one of the circular rotating components 9 to rotate, so that multiple circular rotating components 9 can rotate, so that the metal tube blanks can rotate inside the heating box 3, so as to ensure uniform heating of the metal tube blanks.

[0030] The operation of the two first drive motors 6 enables the two transverse threaded rods 7 to rotate, allowing the sealing box door 4 to move between the two bottom transverse seats 1, and thus enabling the sealing box door 4 to move at one end of the heating box 3, so as to facilitate the loading and unloading of metal tube blanks.

[0031] By setting multiple rotatable clamping components on the sealed box door 4, the clamping range can be flexibly adjusted to adapt to metal tube blanks of different diameters, reducing the frequency of changing clamps and improving production efficiency. The operation of the second drive motor 13 can drive the metal tube blank to rotate during the heating process, making the tube heat more evenly, avoiding local overheating or underheating, and improving the quality and consistency of subsequent processing. The operation of the two first drive motors 6 allows the sealed box door 4 to move flexibly, facilitating the loading and unloading of metal tubes, reducing the difficulty of manual operation, improving production efficiency, and reducing safety hazards in high-temperature environments.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high frequency electric heating furnace for metal pipe blanks, characterized in that: Including heating box (3), the bottom of heating box (3) is fixed with T-shaped connecting plate (2), both ends of T-shaped connecting plate (2) are fixed with bottom transverse seat (1), the inside of heating box (3) is evenly provided with multiple electric heating pipes, one end of heating box (3) is provided with sealed box door (4), the inside of sealed box door (4) is evenly provided with multiple rotatable clamping assemblies.

2. A high frequency electric heating furnace for metal pipe blanks according to claim 1, characterized in that: One end of the bottom transverse seat (1) is bolted with a first drive motor (6), the output end of the first drive motor (6) is fixed with a transverse threaded rod (7), the transverse threaded rod (7) penetrates the inside of the sealed box door (4) and is threadedly connected with the sealed box door (4).

3. A high frequency electric heating furnace for metal pipe blanks according to claim 1, characterized in that: The clamping assembly includes a circular rotating block (16), one end of the circular rotating block (16) is rotatably connected with multiple transverse rotating columns (17) through a pin shaft, one end of the transverse rotating column (17) is rotatably connected with a rectangular sliding column (10) through a pin shaft, the outer side of the rectangular sliding column (10) is slidably connected with a circular rotating piece (9), the bottom of the rectangular sliding column (10) is fixed with a rectangular clamping block (11), the outer side of the circular rotating piece (9) is evenly fixed with multiple gear blocks, and the two circular rotating pieces (9) connected through the gear blocks are meshedly connected.

4. A high frequency electric heating furnace for metal pipe blanks according to claim 3, characterized in that: The two sides of the rectangular sliding column (10) are fixed with vertical sliding blocks, the inside of the circular rotating piece (9) is provided with a vertical sliding groove, and the rectangular sliding column (10) and the circular rotating piece (9) are slidably connected through the cooperation of the vertical sliding blocks and the vertical sliding groove.

5. A high frequency electric heating furnace for metal pipe blanks according to claim 3, characterized in that: One end of the sealed box door (4) is fixed with an L-shaped mounting plate (14), one end of the L-shaped mounting plate (14) is bolted with a second drive motor (13), the output end of the second drive motor (13) is fixed with a driving gear (15), and the driving gear (15) is meshedly connected with one of the circular rotating pieces (9).

6. A high frequency electric heating furnace for metal pipe blanks according to claim 3, characterized in that: One end of the sealed box door (4) is also fixed with a U-shaped mounting rack (5), the two sides of the inside of the U-shaped mounting rack (5) are fixed with transverse hydraulic cylinders (8), the output end of the transverse hydraulic cylinder (8) is fixedly connected with a transverse moving plate (12), and the circular rotating block (16) is located in the inside of the transverse moving plate (12) and is rotatably connected with the transverse moving plate (12) through a bearing.

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