Temperature regulating device for electromagnetic induction heating of aluminum bars

Abstract

The utility model belongs to temperature regulation technical field especially relates to aluminium bar electromagnetic induction heating temperature regulation device, in the light of current problem that cannot be according to different working condition demand flexible adjustment heating area and intensity, present the following scheme, including device shell, the both ends of device shell are all set up and import and export, the horizontal direction of device shell inside is settled with aluminium bar body, the inside of device shell is equipped with the adjusting mechanism for to the coil adjustment. The utility model through main control unit real -time computation fiber grating sensor gathers temperature data, makes main control unit can control a step motor operation alone, drives the rotation of screw rod, under the cooperation of fixed plate and limit groove, makes the horizontal movement of the connecting block screw connection with it when screw rod rotates, thereby can adjust the distance between three electromagnetic coils, can according to temperature distribution data dynamic adjustment, ensure aluminium bar body surface magnetic field intensity even, avoid local overheating.

Description

Technical Field

[0001] This utility model relates to a temperature control device, specifically an electromagnetic induction heating temperature control device for aluminum rods, belonging to the field of temperature control technology. Background Technology

[0002] Electromagnetic induction heating of aluminum rods is a "volume heating" method that uses the principle of electromagnetic induction to generate eddy currents inside the aluminum rod, thus producing heat. It can quickly and evenly heat the aluminum rod and precisely control the temperature, and is primarily used in industrial processing scenarios such as aluminum profile extrusion and forging. Essentially, it uses an alternating magnetic field to induce eddy currents inside the aluminum rod. These eddy currents overcome resistance and do work, converting it into heat energy, thus achieving "internal heating" rather than external conduction.

[0003] An existing patent (publication number: CN222089786U) discloses an electromagnetic induction heating device, which includes an inner tube and an outer tube. The outer tube is fitted around the inner tube, and a lower end cap and an upper end cap are respectively installed at both ends of the outer tube. The inner tube has an inlet and an outlet. A heating element is installed inside the inner tube through the inner tube cavity. When the heating device is started, cold water enters the inner tube cavity through the inlet of the inner tube under the action of a circulating pump, flows through the heating element, and finally flows out through the outlet of the inner tube. The heating element heats up in an alternating electromagnetic field. Under the combined action of the heating element and the water passage, the water passage can absorb heat through the inner and outer sides of the heating element, thereby increasing the heat exchange area between the heating element and the water passage without increasing the volume of the inner tube, achieving efficient heat exchange in a small volume. This can both increase the temperature to meet user needs and ensure electrical safety. However, in actual use, it is not convenient to adjust the position of the electromagnetic coil, which makes it impossible to flexibly adjust the heating area and intensity according to different working conditions in practical applications. Utility Model Content

[0004] This invention provides an electromagnetic induction heating temperature control device for aluminum rods to solve the problem of not being able to flexibly adjust the heating area and intensity according to different working conditions.

[0005] This utility model achieves the above-mentioned objective through the following technical solution: an aluminum rod electromagnetic induction heating temperature control device, including a device shell, with inlets and outlets at both ends of the device shell, an aluminum rod body horizontally arranged inside the device shell, an adjustment mechanism for adjusting the coil inside the device shell, and a guide mechanism for guiding the aluminum rod body at both ends of the device shell.

[0006] The adjustment mechanism includes a protective shell, a connecting block, a limiting groove, a lead screw, a stepper motor, a fixing plate, an electromagnetic coil, and an inner protective sleeve. There are three sets of protective shells, all of which are placed inside the outer shell of the device. The lower surface of each of the three sets of protective shells is welded and fixed with a connecting block. The connecting block is connected to a limiting groove opened on the outer shell of the device.

[0007] As a further embodiment of this utility model: a lead screw is threaded in the horizontal direction inside the connecting block, and the connecting block forms a sliding structure with the outer shell of the device through a limiting groove.

[0008] As a further improvement of this utility model: the input end of the lead screw is connected to a stepper motor via a coupling, and the stepper motor is fixed to the lower surface of the device housing by screws.

[0009] As a further embodiment of this utility model: the end of the lead screw is rotatably connected to a fixing plate via a bearing, and the fixing plate is welded to the outer shell of the device.

[0010] As a further improvement of this utility model: each of the three sets of protective shells has an electromagnetic coil installed inside, and an inner protective sleeve is fixed inside the electromagnetic coil.

[0011] As a further embodiment of this utility model: the guiding mechanism includes a fixed block, a guide rod, a compression spring, a movable part, a connecting plate, a guide roller and a conveying motor. There are two sets of fixed blocks, and both sets of fixed blocks are fixed to both ends of the device housing. Guide rods are welded and fixed to the side walls of both sets of fixed blocks.

[0012] As a further embodiment of this utility model: a compression spring is sleeved on the outer surface of the guide rod, and the end of the compression spring abuts against a movable part that is slidably connected to the guide rod. A connecting plate is welded and fixed to the side wall of the movable part.

[0013] As a further embodiment of this utility model: the inner side of the connecting plate is rotatably connected to a guide roller via a bearing, and the outer wall of the connecting plate is fixed with a conveying motor by screws, thus forming a rotating structure between the guide roller and the conveying motor.

[0014] The beneficial effects of this utility model are:

[0015] 1. This utility model uses a main control unit to calculate the temperature data collected by the fiber optic grating sensor in real time, enabling the main control unit to independently control the operation of a stepper motor, drive the lead screw to rotate, and with the cooperation of the fixed plate and the limiting groove, the lead screw rotates and drives the threaded connecting block to move horizontally, which can adjust the distance between the three electromagnetic coils. It can be dynamically adjusted according to the temperature distribution data to ensure that the magnetic field strength on the surface of the aluminum rod is uniform and avoid local overheating.

[0016] 2. This utility model utilizes the elasticity of the compression spring to compress the moving parts, thereby pressing and guiding the aluminum rod body with the two guide rollers, thus reducing the possibility of the aluminum rod body shifting. The conveying motor can drive the guide rollers to rotate, and under the action of friction, it can push the aluminum rod body and convey the aluminum rod body. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0019] Figure 3 This is a three-dimensional structural diagram of the fixing block of this utility model;

[0020] Figure 4 This is a side view of the structure of this utility model;

[0021] Figure 5 This is a bottom view of the structure of this utility model;

[0022] In the diagram: 1. Device outer casing; 2. Inlet and outlet; 3. Aluminum rod body; 4. Protective shell; 41. Connecting block; 42. Limiting groove; 43. Lead screw; 44. Stepper motor; 45. Fixing plate; 46. Electromagnetic coil; 47. Inner protective sleeve; 5. Fixing block; 51. Guide rod; 52. Compression spring; 53. Moving part; 54. Connecting plate; 55. Guide roller; 56. Conveyor motor. Detailed Implementation

[0023] 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.

[0024] Example 1

[0025] like Figures 1 to 5 As shown, the aluminum rod electromagnetic induction heating temperature control device includes a device housing 1, with inlet and outlet 2 at both ends of the device housing 1, an aluminum rod body 3 horizontally arranged inside the device housing 1, an adjustment mechanism for adjusting the coil inside the device housing 1, and a guide mechanism for guiding the aluminum rod body 3 at both ends of the device housing 1.

[0026] The adjustment mechanism includes a protective shell 4, a connecting block 41, a limiting groove 42, a lead screw 43, a stepper motor 44, a fixing plate 45, an electromagnetic coil 46, and an inner protective sleeve 47. There are three sets of protective shells 4, all of which are placed inside the outer shell 1 of the device. The lower surface of each of the three sets of protective shells 4 is welded and fixed with a connecting block 41. The connecting block 41 is connected to the limiting groove 42 opened on the outer shell 1 of the device. A fiber optic distributed temperature measurement module is set on the outside of the aluminum rod body 3 to be processed. Six temperature measurement points are evenly arranged along the axial direction of the aluminum rod body 3. Each temperature measurement point collects temperature data through a fiber optic sensor embedded in an insulating ceramic sleeve. The signal of the fiber optic sensor is converted by a demodulator and then transmitted to the main control unit.

[0027] Furthermore, a lead screw 43 is threadedly connected to the horizontal direction inside the connecting block 41. The connecting block 41 forms a sliding structure with the device housing 1 through the limiting groove 42. The input end of the lead screw 43 is connected to a stepper motor 44 through a coupling. The stepper motor 44 is fixed to the lower surface of the device housing 1 by screws. The main control unit calculates the temperature data collected by the fiber optic grating sensor in real time, so that the main control unit can control one stepper motor 44 to run independently and drive the lead screw 43 to rotate. With the cooperation of the fixing plate 45 and the limiting groove 42, the lead screw 43 rotates and drives the threaded connecting block 41 to move horizontally. The distance between the three electromagnetic coils 46 can be adjusted dynamically according to the temperature distribution data to ensure that the magnetic field strength on the surface of the aluminum rod body 3 is uniform and to avoid local overheating.

[0028] Furthermore, the end of the lead screw 43 is rotatably connected to a fixed plate 45 via a bearing. The fixed plate 45 is welded to the outer shell 1 of the device. Electromagnetic coils 46 are installed inside the three sets of protective shells 4. An inner protective sleeve 47 is fixed inside the electromagnetic coils 46. The electromagnetic coils 46 installed inside the protective shells 4 generate an alternating magnetic field through alternating current, which causes eddy currents to form inside the aluminum rod body 3 and generates heat, thus achieving internal heating.

[0029] Example 2

[0030] Improvements based on Example 1:

[0031] Furthermore, the guiding mechanism includes a fixed block 5, a guide rod 51, a compression spring 52, a movable part 53, a connecting plate 54, a guide roller 55, and a conveying motor 56. There are two sets of fixed blocks 5, and both sets of fixed blocks 5 are fixed to both ends of the device housing 1. The side walls of both sets of fixed blocks 5 are welded and fixed with guide rods 51. The fixed blocks 5 can ensure the stability of the guiding mechanism.

[0032] Furthermore, a compression spring 52 is fitted on the outer surface of the guide rod 51. The end of the compression spring 52 abuts against a movable part 53 that is slidably connected to the guide rod 51. A connecting plate 54 is welded and fixed to the side wall of the movable part 53. When the two guide rollers 55 are compressed, they will drive the connecting plate 54 to move vertically, thereby causing the movable part 53 to slide on the guide rod 51.

[0033] Furthermore, a guide roller 55 is rotatably connected to the inner side of the connecting plate 54 via a bearing, and a conveying motor 56 is fixed to the outer wall of the connecting plate 54 via screws. The guide roller 55 and the conveying motor 56 form a rotating structure. The compression spring 52 is elastic after being compressed and can press the moving part 53, so that the two guide rollers 55 press and guide the aluminum rod body 3, thereby reducing the possibility of the aluminum rod body 3 deviating. The conveying motor 56 set on one of the connecting plates 54 can drive the guide roller 55 to rotate, and under the action of friction, it can push the aluminum rod body 3, thereby conveying the aluminum rod body 3.

[0034] It should be noted that: six temperature measuring points are evenly arranged along the axial direction of the aluminum rod body 3. These points can be located at the feeding end, 1 / 3 of the feeding end, the middle section, 1 / 3 of the discharging end, the discharging end, and the center of the aluminum rod body 3. Furthermore, the fiber optic grating distributed temperature measuring module is an existing technology.

[0035] Working Principle: Before using the aluminum rod electromagnetic induction heating temperature control device, first place the device housing 1 in a suitable position. Through the inlet and outlet 2 set on the device housing 1, first install a fiber optic distributed temperature measurement module on the outside of the aluminum rod body 3 to be processed. Six temperature measurement points are evenly arranged along the axial direction of the aluminum rod body 3. Each temperature measurement point collects temperature data through a fiber optic sensor embedded in an insulating ceramic sleeve. The signal from the fiber optic sensor is converted by a demodulator and transmitted to the main control unit. Then, the aluminum rod body 3 is inserted into the device housing 1. Through the guide mechanism set at both ends of the device housing 1, when the two guide rollers 55 are compressed, they will drive the connecting plate 54 to move vertically, thereby causing the movable part 53 to slide on the guide rod 51. The fixed block 5 ensures the stability of the guide mechanism. When the movable part 53 moves, it compresses the clamping spring 52, making the clamping spring 52 elastic and able to clamp the movable part 53, so that the two guide rollers 55 clamp and guide the aluminum rod body 3, thereby reducing the deviation of the aluminum rod body 3. In this configuration, a conveyor motor 56 mounted on one of the connecting plates 54 drives a guide roller 55 to rotate. Under the action of friction, the roller pushes the aluminum rod body 3, thus conveying it without manual operation. An electromagnetic coil 46 inside the protective shell 4 generates an alternating magnetic field through alternating current, causing eddy currents and heat generation inside the aluminum rod body 3. The inner protective sleeve 47 provides protection. The main control unit calculates temperature data collected by a fiber optic grating sensor in real time, allowing the main control unit to independently control a stepper motor 44 to drive a lead screw 43 to rotate. With the cooperation of the fixed plate 45 and the limiting groove 42, the lead screw 43 rotates, causing the threaded connecting block 41 to move horizontally. The distance between the three electromagnetic coils 46 can be adjusted dynamically according to the temperature distribution data, ensuring uniform magnetic field strength on the surface of the aluminum rod body 3 and avoiding local overheating. This device, through the synergistic effect of the electromagnetic coils 46 and gap adjustment, effectively solves the problem of local overheating in traditional devices.

[0036] It will be apparent to those skilled in the art that this invention 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 essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0037] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An electromagnetic induction heating temperature control device for aluminum rods, comprising: The device housing (1) is characterized in that: both ends of the device housing (1) are provided with inlet and outlet (2), an aluminum rod body (3) is arranged horizontally inside the device housing (1), an adjustment mechanism for adjusting the coil is provided inside the device housing (1), and a guide mechanism for guiding the aluminum rod body (3) is provided at both ends of the device housing (1). The adjustment mechanism includes a protective shell (4), a connecting block (41), a limiting groove (42), a lead screw (43), a stepper motor (44), a fixing plate (45), an electromagnetic coil (46), and an inner protective sleeve (47). The protective shell (4) is provided in three sets, and the three sets of the protective shell (4) are all placed inside the outer shell (1) of the device. The lower surface of the three sets of the protective shell (4) is welded and fixed with a connecting block (41). The connecting block (41) is connected to the limiting groove (42) opened on the outer shell (1) of the device.

2. The aluminum rod electromagnetic induction heating temperature control device according to claim 1, characterized in that: The connecting block (41) is threaded with a lead screw (43) in the horizontal direction inside, and the connecting block (41) forms a sliding structure with the device housing (1) through the limiting groove (42).

3. The aluminum rod electromagnetic induction heating temperature control device according to claim 2, characterized in that: The input end of the lead screw (43) is connected to a stepper motor (44) via a coupling, and the stepper motor (44) is fixed to the lower surface of the device housing (1) by screws.

4. The aluminum rod electromagnetic induction heating temperature control device according to claim 3, characterized in that: The end of the lead screw (43) is rotatably connected to a fixing plate (45) via a bearing, and the fixing plate (45) is welded to the outer shell (1) of the device.

5. The aluminum rod electromagnetic induction heating temperature control device according to claim 4, characterized in that: The three sets of protective shells (4) each have an electromagnetic coil (46) installed inside, and an inner protective sleeve (47) is fixed inside the electromagnetic coil (46).

6. The aluminum rod electromagnetic induction heating temperature control device according to claim 5, characterized in that: The guiding mechanism includes a fixed block (5), a guide rod (51), a compression spring (52), a movable part (53), a connecting plate (54), a guide roller (55), and a conveying motor (56). The fixed block (5) is provided in two sets, and both sets of the fixed block (5) are fixed at both ends of the device housing (1). The side walls of both sets of the fixed block (5) are welded and fixed with guide rods (51).

7. The aluminum rod electromagnetic induction heating temperature control device according to claim 6, characterized in that: A compression spring (52) is sleeved on the outer surface of the guide rod (51). The end of the compression spring (52) abuts against a movable part (53) that is slidably connected to the guide rod (51). A connecting plate (54) is welded and fixed to the side wall of the movable part (53).

8. The aluminum rod electromagnetic induction heating temperature control device according to claim 7, characterized in that: The inner side of the connecting plate (54) is rotatably connected to the guide roller (55) via a bearing, and the outer wall of the connecting plate (54) is fixed with a conveying motor (56) by screws. The guide roller (55) and the conveying motor (56) form a rotating structure.

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