High-frequency local annealing device for electric heating pipe

Abstract

The utility model belongs to the technical field of electric heating tube processing, and particularly relates to an electric heating tube high-frequency local annealing device which comprises a device base, and a sliding groove is formed in the inner wall of the device base. According to the high-frequency local annealing device for the electric heating tube, through the arrangement of the sliding groove, the sliding table, the protective baffle and the rotating handle, when the resistance heater is electrified to generate high temperature and carries out high-temperature calcination on the tube wall of the electric heating tube, the sliding table slides along the sliding groove by pulling the rotating handle; the protective baffle is arranged to shield and protect the high-temperature calcined electric heating tube, so that the electric heating tube is prevented from being exploded due to non-uniform heating, safety accidents caused by splashing of fragments are avoided, and the safety of annealing operation of the electric heating tube is improved; and by arranging an air pump and a fan, after the rotating disc drives the heated and calcined electric heating pipe to rotate to a designated position, the air pump is started to drive the fan to conduct wind heat dissipation on the surface of the electric heating pipe, and the annealing efficiency of the electric heating pipe is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric heating tube processing, and specifically relates to a high-frequency local annealing device for electric heating tubes. Background Technique

[0002] An electric heating tube is a tubular electric heating element, which is composed of a metal tube, a helical resistance wire, crystalline magnesium oxide powder, etc. Electric heating tube products generally use high-quality imported stainless steel tubes, imported high-temperature magnesium oxide powder, high-quality electric heating wires and other materials to make heating elements, and use stainless steel to make other structural parts, with excellent overall performance, long service life and easy maintenance. Due to process or special shaping requirements, the electric heating tube needs to be bent. To avoid uneven stress during the bending of the electric heating tube, resulting in damage and fragmentation of the tube wall, when bending the electric heating tube, the tube wall is subjected to high-temperature calcination and then undergoes an annealing process to further improve the performance of the tube wall material of the electric heating tube, thereby extending the service life of the electric heating tube.

[0003] Currently, in the prior art:

[0004] When the current local annealing device for electric heating tubes is in use, the temperature of the electric heating tube is relatively high after local calcination. When manually taking the material, although wearing gloves, there is still a risk of being scalded. Moreover, when manually loading and calcining the existing local annealing device for electric heating tubes, only one electric heating tube can be calcined at a time, and the next one can only be calcined after the material is unloaded, resulting in low processing efficiency. In addition, due to high-temperature calcination, when the tube wall of the electric heating tube is unevenly heated, it is easy to burst and the fragments fly, causing safety accidents.

[0005] Therefore, a high-frequency local annealing device for electric heating tubes is proposed to solve the above problems. Summary of the Utility Model

[0006] In order to make up for the deficiencies of the prior art and solve the above problems, a high-frequency local annealing device for electric heating tubes is proposed.

[0007] The technical solution adopted by the utility model to solve its technical problems is as follows: A high-frequency local annealing device for electric heating tubes according to the utility model includes a device base, a chute is provided on the inner wall of the device base, a sliding table is installed on the inner wall of the chute, a protective baffle is installed on the top of the sliding table, and a rotating handle is installed on the outer side wall of the sliding table.

[0008] Preferably, the chute is slidably connected to the sliding table, and the protective baffle is made of transparent tempered glass.

[0009] Preferably, a resistance heater is installed at the bottom of the device base, a power motor is installed at the bottom of the device base, a turntable is installed at the top of the power motor, a rotating shaft is installed on the inner wall of the turntable, a connecting sleeve is installed on the outer wall of the rotating shaft, a limiting plate is installed on the outer wall of the connecting sleeve, a limiting block is installed on the outer side wall of the turntable, and a positioning sleeve is installed on the inner wall of the connecting sleeve.

[0010] Preferably, the connecting sleeve and the turntable form a rotating structure through the rotating shaft, and the limiting plate is engaged with the limiting block.

[0011] Preferably, the inside of the connecting sleeve is of a groove design, and the connecting sleeves are arranged in an annular array centered on the central axis of the turntable.

[0012] Preferably, a motor is installed at the bottom of the device base, a top rod is installed at the top of the motor, an air pump is installed at the bottom of the device base, and a blower is installed at the top of the air pump.

[0013] Preferably, the top rod is in close contact with the bottom of the connecting sleeve, and the air pump is welded to the bottom of the device base.

[0014] Advantages of the present utility model:

[0015] The present utility model provides a high-frequency local annealing device for electric heating tubes. By setting a chute, a sliding table, a protective baffle and a rotating handle, when the resistance heater is powered on to generate high temperature and calcine the tube wall of the electric heating tube at high temperature, by pulling the rotating handle, the sliding table is slid along the chute, so that the protective baffle shields and protects the electrically heated tube being calcined at high temperature, avoiding the electric heating tube from bursting due to uneven heating, resulting in flying fragments and causing safety accidents, and improving the safety of the annealing operation of the electric heating tube.

[0016] The present utility model provides a high-frequency local annealing device for electric heating tubes. By setting a power motor, a turntable, a rotating shaft, a connecting sleeve, a limiting plate, a limiting block, a positioning sleeve and a motor, the electric heating tube to be heated and calcined is inserted into the positioning sleeve. By starting the power motor to drive the turntable to rotate intermittently and uniformly, continuous feeding and calcining are realized without interruption. Then the resistance heater is turned on. When the turntable drives the electric heating tube through the inside of the resistance heater, it is calcined at high temperature. When the turntable drives the calcined electric heating tube to rotate to a specified position, by starting the motor to drive the top rod to push upward, the inner side of the connecting sleeve is lifted, so that the connecting sleeve rotates along the rotating shaft, and the calcined electric heating tube is thrown out, realizing automatic discharging and avoiding being scalded by manually holding the discharging.

[0017] The utility model provides a high-frequency local annealing device for electric heating tubes. By setting an air pump and a fan, after the turntable drives the heated and calcined electric heating tubes to rotate to a specified position, the air pump is started to drive the fan to conduct wind cooling on the surface of the electric heating tubes, thereby improving the annealing efficiency of the electric heating tubes. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide a further understanding of the utility model and constitute a part of this application. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an improper limitation to the utility model. In the drawings:

[0019] Figure 1 is a perspective view of the front view appearance of the utility model;

[0020] Figure 2 is a perspective view of the bottom view appearance of the utility model;

[0021] Figure 3 is a schematic structural view showing the disassembly of some parts of the utility model;

[0022] Figure 4 is a schematic structural view showing some components of the utility model;

[0023] Figure 5 is a schematic structural view showing the details of some components of the utility model;

[0024] Figure 6 is the utility model Figure 5 partial enlarged view at position A;

[0025] LEGEND DESCRIPTION:

[0026] 1. Device base; 2. Slide groove; 3. Slide table; 4. Protective baffle; 5. Rotating handle; 6. Resistance heater; 7. Power motor; 8. Turntable; 9. Rotating shaft; 10. Connecting sleeve; 11. Limiting plate; 12. Limiting block; 13. Positioning sleeve; 14. Electric motor; 15. Jack; 16. Air pump; 17. Fan. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Apparently, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the utility model without creative efforts shall fall within the protection scope of the utility model.

[0028] Specific embodiments are given below.

[0029] Please refer to Figure 1 ,Figure 2 and Figure 3 , the utility model provides a high-frequency local annealing device for electric heating tubes, which includes a device base 1. A chute 2 is opened on the inner wall of the device base 1. A sliding table 3 is installed on the inner wall of the chute 2. A protective baffle 4 is installed on the top of the sliding table 3. A rotating handle 5 is installed on the outer side wall of the sliding table 3. The chute 2 is slidably connected with the sliding table 3. The protective baffle 4 is made of transparent tempered glass.

[0030] During operation, when the resistance heater 6 is energized to generate high temperature and calcine the tube wall of the electric heating tube at high temperature, by pulling the rotating handle 5, the sliding table 3 is slid along the chute 2, so that the protective baffle 4 shields and protects the electrically heated tube being calcined at high temperature, avoiding the explosion of the electrically heated tube due to uneven heating, resulting in the flying of fragments and triggering safety accidents, and improving the safety of the annealing operation of the electric heating tube.

[0031] Further, as shown in Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 6 , a resistance heater 6 is installed at the bottom of the device base 1. A power motor 7 is installed at the bottom of the device base 1. A turntable 8 is installed on the top of the power motor 7. A rotating shaft 9 is installed on the inner wall of the turntable 8. A connecting sleeve 10 is installed on the outer wall of the rotating shaft 9. A limiting plate 11 is installed on the outer wall of the connecting sleeve 10. A limiting block 12 is installed on the outer side wall of the turntable 8. A positioning sleeve 13 is installed on the inner wall of the connecting sleeve 10. The connecting sleeve 10 and the turntable 8 form a rotating structure through the rotating shaft 9. The limiting plate 11 is engaged with the limiting block 12. The inside of the connecting sleeve 10 is designed as a groove type. The connecting sleeves 10 are arranged in an annular array centered on the central axis of the turntable 8.

[0032] During operation, the electric heating tube to be heated and calcined is inserted into the positioning sleeve 13. By starting the power motor 7 to drive the turntable 8 to rotate intermittently and uniformly, continuous feeding and calcination are realized without interruption. Then the resistance heater 6 is turned on. When the turntable 8 drives the electric heating tube to pass through the inside of the resistance heater 6, it is calcined at high temperature. When the turntable 8 drives the calcined electric heating tube to rotate to a specified position, by starting the motor 14 to drive the ejector rod 15 to push upward, the inner side of the connecting sleeve 10 is lifted, so that the connecting sleeve 10 rotates along the rotating shaft 9, and the calcined electric heating tube is thrown out, realizing automatic discharging and avoiding being scalded by manually holding the discharging.

[0033] Further, as shown in Figure 1 , Figure 2 and Figure 4As shown, a motor 14 is installed at the bottom of the device base 1. A push rod 15 is installed on the top of the motor 14. An air pump 16 is installed at the bottom of the device base 1. A blower 17 is installed on the top of the air pump 16. The push rod 15 is in close contact with the bottom of the connecting sleeve 10. The air pump 16 is welded to the bottom of the device base 1.

[0034] During operation, when the turntable 8 drives the heated and calcined electric heating tube to rotate to a specified position, the air pump 16 is started to drive the blower 17 to conduct wind cooling on the surface of the electric heating tube, improving the annealing efficiency of the electric heating tube.

[0035] Working principle:

[0036] First, insert the electric heating tube that needs to be calcined at high temperature into the connecting sleeve 10. Then, turn on the resistance heater 6 for preheating and starting. After preheating is completed, start the power motor 7 to drive the turntable 8 to rotate intermittently and evenly, so that the electric heating tube is calcined at high temperature when passing through the inside of the resistance heater 6.

[0037] Secondly, pull the rotating handle 5 to make the sliding table 3 slide along the sliding groove 2. At this time, the protective baffle 4 shields and protects the electrically heated tube calcined at high temperature, preventing the electrically heated tube from bursting due to uneven heating and causing fragments to fly and trigger a safety accident. Then, when the turntable 8 drives the heated and calcined electric heating tube to rotate to a specified position, start the air pump 16 to drive the blower 17 to conduct wind cooling on the surface of the electric heating tube, improving the annealing efficiency of the electric heating tube.

[0038] Finally, when the turntable 8 drives the calcined electric heating tube to rotate to a specified position, start the motor 14 to drive the push rod 15 to push upward, jack up the inside of the connecting sleeve 10, so that the connecting sleeve 10 rotates along the rotating shaft 9, and the calcined electric heating tube is thrown out, realizing automatic discharging and avoiding being scalded by manually holding the discharging.

[0039] The above shows and describes the basic principle, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements fall within the scope of the present invention claimed.

Claims

1. A high-frequency local annealing device for an electric heating tube, comprising a device base (1), characterized in that: The inner wall of the device base (1) is provided with a slide groove (2), the inner wall of the slide groove (2) is provided with a slide platform (3), the top of the slide platform (3) is provided with a protective baffle (4), and the outer side wall of the slide platform (3) is provided with a rotating handle (5).

2. The high frequency local annealing device for electric heating tube according to claim 1, characterized in that: The slide groove (2) is slidably connected to the slide platform (3), and the protective baffle (4) is made of transparent tempered glass.

3. The high frequency local annealing device for electric heating tube according to claim 1, characterized in that: A resistance heater (6) is installed at the bottom of the device base (1), a power motor (7) is installed at the bottom of the device base (1), a turntable (8) is installed on the top of the power motor (7), a rotating shaft (9) is installed on the inner wall of the turntable (8), a connecting sleeve (10) is installed on the outer wall of the rotating shaft (9), a limiting plate (11) is installed on the outer wall of the connecting sleeve (10), a limiting block (12) is installed on the outer wall of the turntable (8), and a positioning sleeve (13) is installed on the inner wall of the connecting sleeve (10).

4. The high frequency local annealing device for electric heating tube according to claim 3, characterized in that: The connecting sleeve (10) forms a rotating structure with the rotating disk (8) via a rotating shaft (9), and the limiting plate (11) is connected by a locking engagement with the limiting clamping block (12).

5. The high frequency local annealing device for electric heating tube according to claim 3, characterized in that: The interior of the connecting sleeve (10) is designed as a groove, and the connecting sleeves (10) are distributed in a ring array with the central axis of the rotating disk (8) as the center.

6. The high frequency local annealing device for electric heating tube according to claim 1, characterized in that: An electric motor (14) is installed at the bottom of the device base (1), a top rod (15) is installed at the top of the electric motor (14), an air pump (16) is installed at the bottom of the device base (1), and a fan (17) is installed at the top of the air pump (16).

7. The high frequency local annealing device for electric heating tube according to claim 6, characterized in that: The push rod (15) is tightly fitted to the bottom of the connecting sleeve (10), and the air pump (16) is welded to the bottom of the device base (1).

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