Annealing device for copper pipe machining
By introducing an intermittent rotation mechanism of a rotating disk and an eccentric wheel into the copper tube annealing device, combined with multiple heating elements, the problem of uneven heating of the large copper tube plate was solved, achieving uniform annealing of the copper tube and improving product quality and efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-30
- Publication Date
- 2026-04-03
AI Technical Summary
In the existing technology, the copper tube large distribution plate has the problem of uneven heating during the annealing process, which leads to large differences in the annealing effect of different parts of the copper tube, affecting the mechanical properties and product quality.
An intermittent rotation mechanism comprising a rotating disk, an eccentric wheel, and a connecting rod is employed, combined with multiple heating elements. A rotary motor drives the eccentric wheel to rotate the rotating disk intermittently, causing the large copper tube plate to be periodically exposed to the heating elements, thereby achieving uniform heating.
This method achieves uniform heating of the large copper tube heat exchanger, improves annealing quality and efficiency, ensures the overall performance and surface quality of the copper tube, and reduces the product defect rate.
Smart Images
Figure CN224077477U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of metal processing technology, and in particular to an annealing device for copper tube processing. Background Technology
[0002] Copper tubes are widely used in refrigeration, power, construction, and automotive industries due to their excellent thermal conductivity, corrosion resistance, and ductility. During copper tube manufacturing, cold working (such as drawing and rolling) can lead to material hardening, internal residual stress, and reduced ductility. Annealing, as a key heat treatment process, involves heating the copper tube to its recrystallization temperature (typically 400–700°C) and then slowly cooling it. This eliminates stress, restores ductility, and ensures the feasibility of subsequent processing (such as bending and flaring). In existing technologies, copper tubes are often heated in large, loose coils during annealing.
[0003] However, due to the large volume and varying coil tightness of the copper tube coils, traditional static heating methods struggle to evenly distribute heat throughout the coil, resulting in uneven heating. Specifically, the temperature rises rapidly on the exterior or directly exposed to the heat source, while the temperature rises more slowly in the interior or shaded areas, creating a significant temperature gradient. This uneven heating leads to substantial differences in annealing effects across different parts of the copper tube. Some areas may be under-annealed, with residual stress not fully eliminated and plasticity recovery incomplete; while other areas may be over-annealed, resulting in excessive grain growth or even oxidation. This negatively impacts the overall mechanical properties and surface quality of the copper tube, reducing product yield and creating difficulties for subsequent processing. Therefore, existing technologies urgently need improvement to address these issues. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an annealing device for copper tube processing.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: an annealing device for copper tube processing, comprising a box body with a door and a heating element disposed within the box body;
[0006] It also includes a mounting base, which is fixedly installed inside the enclosure;
[0007] A rotating disk is rotatably mounted in a mounting slot on the mounting base, and a placement plate for placing a large copper tube tray is provided on the top of the rotating disk.
[0008] The outer periphery of the rotating disk is equipped with an annular slider, and an annular groove is provided in the mounting groove, in which the slider is slidably disposed.
[0009] The mounting plate is fixedly installed inside the enclosure.
[0010] A rotary motor is mounted on the mounting plate. The output shaft of the rotary motor is fixedly connected to an eccentric wheel, which is located below the rotating disk. The eccentric wheel has a stepped portion.
[0011] A connecting rod is fixedly installed at the bottom of the rotating disk. The eccentric wheel is not concentric with the center of the rotating disk. The stepped part of the eccentric wheel moves against the connecting rod so that when the eccentric wheel is driven to rotate by the rotary motor, the stepped part intermittently contacts the connecting rod, thereby causing the rotating disk to rotate intermittently.
[0012] Furthermore, according to any of the preceding annealing devices, the number of connecting rods is two.
[0013] Furthermore, in any of the preceding annealing apparatuses, the number of heating elements is multiple.
[0014] Furthermore, in any of the preceding annealing apparatuses, the plurality of heating elements are arranged in a straight line and located above the rotating disk.
[0015] Preferably, in the annealing apparatus according to any of the foregoing claims, the heating element is a silicon carbide rod.
[0016] Furthermore, in any of the preceding annealing apparatuses, the top of the rotating disk is provided with a placement groove, the shape of the placement disk being adapted to the inner shape of the placement groove so that the placement disk is stably placed in the placement groove.
[0017] Furthermore, according to any of the preceding annealing apparatuses, the outer shape of the rotating disk is adapted to the inner shape of the mounting groove so that the rotating disk is stably rotated within the mounting groove.
[0018] Furthermore, in any of the preceding annealing apparatuses, the shape of the slider is adapted to the inner shape of the groove so that the slider is stably slidably disposed within the groove.
[0019] Compared with the prior art, the present invention has the following beneficial effects:
[0020] A rotating disk is used to support the placement tray and the large copper tube annealing tray, and an intermittent rotation mechanism consisting of a rotary motor, an eccentric wheel, a stepped section, and a connecting rod is incorporated. This mechanism causes the rotating disk to rotate intermittently through intermittent contact between the stepped section of the eccentric wheel and the connecting rod at the bottom of the rotating disk. While the heating element heats the large copper tube annealing tray, the intermittent rotation of the rotating disk periodically exposes different areas of the tray to the heating element, achieving uniform heating and effectively solving the problem of uneven heating during copper tube annealing in existing technologies. Furthermore, the annular slider and groove provide stable guidance for the rotation of the rotating disk, improving the smoothness and reliability of the device's operation. This device has a simple structure, is easy to control, and can significantly improve the quality and efficiency of copper tube annealing. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the overall structure of an annealing apparatus for copper tube processing.
[0022] Figure 2 This is a schematic diagram of the inner cavity of a box in an annealing apparatus used for copper tube processing.
[0023] Figure 3 This is a schematic diagram of a rotating disk in an annealing apparatus used for copper tube processing.
[0024] Figure 4 This is a schematic diagram of a mounting plate in an annealing apparatus used for copper tube processing.
[0025] Figure 5 This is a schematic diagram of a mounting base in an annealing apparatus used for copper tube processing.
[0026] Figure 6 This is a schematic diagram of an eccentric wheel in an annealing apparatus used for copper tube processing.
[0027] Figure 7 This is a schematic diagram of a chute in an annealing apparatus used for copper tube processing.
[0028] In the diagram: 1. Box body; 2. Box door; 3. Placement tray; 4. Rotary disc; 5. Placement slot; 6. Mounting base; 7. Mounting slot; 8. Mounting plate; 9. Rotary motor; 10. Eccentric wheel; 11. Step section; 12. Connecting rod; 13. Silicon carbide rod; 14. Slider; 15. Slide. Detailed Implementation
[0029] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.
[0030] In the field of copper tube manufacturing, annealing is a crucial step in restoring the material's plasticity. However, for copper tubes in the form of large, loose coils, traditional static heating methods struggle to ensure uniform heat penetration, leading to inconsistent annealing results and impacting product quality. To overcome the problem of uneven heating during the annealing of large, loose copper tubes in existing technologies, this invention proposes an annealing device for copper tube processing. This device introduces an intermittent rotating mechanism, allowing the large, loose copper tube to periodically change its heating position during the heating process, thereby achieving uniform annealing. The device mainly comprises a housing containing heating elements and innovatively includes an intermittently rotating disc driven by a mechanism consisting of a rotary motor, an eccentric wheel, and a connecting rod.
[0031] like Figures 1 to 7 An annealing apparatus for copper tube processing is shown, including a box 1 with a door 2 installed, a heating element disposed inside the box 1, and a mounting base 6 fixedly disposed inside the box 1.
[0032] The rotating disk 4 is rotatably set in the mounting groove 7 opened on the mounting base 6, and the top of the rotating disk 4 is provided with a placement plate 3 for placing the large copper tube tray.
[0033] A circular slider 14 is installed on the outer periphery of the rotating disk 4, and a circular groove 15 is provided in the mounting groove 7, and the slider 14 is slidably disposed in the groove 15.
[0034] Mounting plate 8 is fixedly installed inside housing 1; rotary motor 9 is installed on mounting plate 8, and the output shaft of rotary motor 9 is fixedly connected to eccentric wheel 10. Eccentric wheel 10 is located below rotary disk 4 and eccentric wheel 10 is provided with stepped part 11.
[0035] The connecting rod 12 is fixedly installed at the bottom of the rotating disk 4. The eccentric wheel 10 is not concentric with the center of the rotating disk 4. The stepped part 11 of the eccentric wheel 10 moves against the connecting rod 12. When the eccentric wheel 10 is driven to rotate by the rotary motor 9, the stepped part 11 intermittently contacts the connecting rod 12, thereby driving the rotating disk 4 to rotate intermittently.
[0036] When using this annealing apparatus to anneal copper tubes, first open the door 2 on one side of the chamber 1 (see...). Figure 1 Place the large copper tube tray into the placement tray 3, and then place the placement tray 3 into the placement slot 5 opened in the rotating disk 4 (see...). Figure 3Then close the door 2. Start the heating element to heat the inside of the chamber 1. Simultaneously, start the rotary motor 9, driving the eccentric wheel 10 to rotate. Since the eccentric wheel 10 is not concentric with the center of the rotating disk 4, and the stepped portion 11 of the eccentric wheel 10 is in contact with the connecting rod 12 fixedly installed at the bottom of the rotating disk 4, when the rotary motor 9 drives the eccentric wheel 10 to rotate, the stepped portion 11 on one side of the eccentric wheel 10 can contact the connecting rod 12, driving the rotating disk 4 to rotate. When it rotates to a certain position, the stepped portion 11 on the eccentric wheel 10 will separate from the connecting rod 12, at which point the rotating disk 4 stops rotating. The heating element inside the chamber 1 heats the large copper tube tray. When the eccentric wheel 10 rotates continuously via the rotary motor 9, the stepped portion 11 will contact the connecting rod 12 again, driving the rotating disk 4 to rotate again. This intermittent rotation prevents uneven heating of the large copper tube tray. By controlling the rotation speed of the rotary motor 9, the time at which the rotary disk 4 stops rotating can be controlled, thereby controlling the heating time and further optimizing the annealing process. The annular slider 14 mounted on the outer periphery of the rotary disk 4 slides within the annular groove 15 opened in the mounting groove 7, providing stable support and guidance for the rotation of the rotary disk 4.
[0037] In one embodiment of this utility model, the number of connecting rods 12 is two.
[0038] During operation, when the rotary motor 9 drives the eccentric wheel 10 to rotate, the stepped portion 11 on the eccentric wheel 10 periodically contacts one of the two connecting rods 12. When the stepped portion 11 contacts and pushes one of the connecting rods 12, it causes the rotating disk 4 to rotate at a certain angle. After the stepped portion 11 has rotated past the connecting rod 12, the rotating disk 4 stops rotating. As the eccentric wheel 10 continues to rotate, the stepped portion 11 will contact the other connecting rod 12 again, pushing the rotating disk 4 to rotate again. Thus, through the sequential contact and separation of the stepped portion 11 of the eccentric wheel 10 with the two connecting rods 12, the intermittent rotation of the rotating disk 4 is achieved.
[0039] In one embodiment of this utility model, the number of heating elements is multiple.
[0040] In one embodiment of this utility model, multiple heating elements are arranged in a straight line and located above the rotating disk 4.
[0041] In one embodiment of this utility model, the heating element is a silicon carbide rod 13.
[0042] During operation, multiple heating elements are installed inside the housing 1, see [link / reference]. Figure 2These heating elements work together to heat the large copper tube plate placed on the rotating disk 4. The material of the plate is silicon carbide rod 13, which is a non-metallic electric heating element made of high-purity green hexagonal crystalline silicon carbide as the main raw material and is processed and sintered.
[0043] As one embodiment of this utility model, the top of the rotating disk 4 is provided with a placement groove 5, and the outer shape of the placement disk 3 is adapted to the inner shape of the placement groove 5 so that the placement disk 3 is stably placed in the placement groove 5.
[0044] During operation, one or more placement slots 5 are provided on the top surface of the rotating disk 4, see [reference]. Figure 3 These placement slots 5 are recesses or areas for accommodating the placement tray 3. The placement tray 3 is the component that directly supports the large copper tube tray. To ensure that the placement tray 3 does not shift or wobble during the rotation of the rotating disk 4, the external shape of the placement tray 3 is designed to match the internal shape of the placement slot 5. By creating the placement slot 5 on the top of the rotating disk 4 and adapting the placement tray 3 to its shape, this invention provides a simple and effective way to fix the placement tray 3. This adaptation ensures that the placement tray 3 can be stably held in the predetermined position during the rotation of the rotating disk 4, preventing inaccurate heating or accidents caused by the displacement of the large copper tube tray due to the placement tray 3. This improves the stability and safety of the annealing process, ensures that the large copper tube tray can continuously receive uniform heating, and further improves the annealing quality.
[0045] As one embodiment of this utility model, the outer shape of the rotating disk 4 is adapted to the inner shape of the mounting groove 7 so that the rotating disk 4 is stably rotated and installed in the mounting groove 7.
[0046] By adapting the shape of the rotating disk 4 to the inner shape of the mounting groove 7, this invention ensures that the rotating disk 4 can rotate stably within the mounting base 6. This stable rotation reduces wear on the rotating mechanism, lowers operating noise, and improves the efficiency and service life of the rotating mechanism. More importantly, stable rotation provides a reliable foundation for uniform heating of the large copper tube plate, ensuring a smooth annealing process.
[0047] As one embodiment of this utility model, the outer shape of the slider 14 is adapted to the inner shape of the groove 15 so that the slider 14 can be stably slidably disposed in the groove 15.
[0048] By adapting the shape of the slider 14 to the inner shape of the groove 15, this invention provides reliable guiding support for the rotation of the rotating disk 4. This adaptation ensures that the rotating disk 4 can move smoothly along a predetermined trajectory during intermittent rotation, reducing vibration or deviation caused by instability in the rotating mechanism. This improves the stability of the entire annealing device and the reliability of the mechanism, further guaranteeing the positional accuracy and heating uniformity of the large copper tube plate during the heating process.
[0049] Working principle of this utility model:
[0050] In use, the box door 2 on one side of the housing 1 can be opened, and the large copper tube tray can be placed into the placement tray 3. The placement tray 3 can then be placed into the placement slot 5 of the rotating disk 4. The rotating disk 4 is rotatably mounted in the mounting slot 7 of the mounting base 6. The eccentric wheel 10 can be rotated by the rotary motor 9 on the mounting plate 8 inside the housing 1. Since the center of the eccentric wheel 10 is not concentric with the center of the rotating disk 4, when the rotary motor 9 drives the eccentric wheel 10 to rotate, it can pass through the step 11 on one side of the eccentric wheel 10 and be fixedly mounted on the rotating disk 6. The connecting rod 12 at the bottom of the turntable 4 moves against each other, causing the turntable 4 to rotate. When it rotates to a certain position, the step 11 on the eccentric wheel 10 will separate from the connecting rod 12. At this time, the turntable 4 stops rotating and the copper tube large plate is heated by the silicon carbide rod 13 set on the top of the box 1. When the eccentric wheel 10 rotates continuously by the rotary motor 9, the step 11 will come into contact with another connecting rod 12, and then drive the turntable 4 to rotate. This intermittent rotation can prevent uneven heating of the copper tube large plate.
[0051] By controlling the rotation speed of the rotary motor 9, the time when the rotating disk 4 stops rotating can be controlled, thereby controlling the heating time.
[0052] A circular slider 14 is installed on the outer periphery of the rotating disk 4, and a circular groove 15 is provided in the mounting groove 7, and the slider 14 is slidably disposed in the groove 15.
[0053] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope. All such changes and modifications fall within the scope of protection claimed by this utility model, which is defined by the appended claims and their equivalents.
Claims
1. An annealing apparatus for copper tube processing, comprising: The box body (1) provided with a box door (2) and a heating element arranged in the box body (1), characterized in that further comprising: a mounting seat (6) fixedly arranged in the box body (1); A rotating disc (4) rotatably arranged in a mounting groove (7) of the mounting seat (6), and a placing disc (3) for placing a copper pipe distributing disc arranged on the top of the rotating disc (4); A circular sliding block (14) is arranged on the outer periphery of the rotating disc (4), and a circular sliding groove (15) is arranged in the mounting groove (7), and the sliding block (14) is slidably arranged in the sliding groove (15); A mounting plate (8) fixedly arranged in the box body (1), and a rotating motor (9) arranged on the mounting plate (8), wherein an eccentric wheel (10) is fixedly connected to the output shaft of the rotating motor (9), and the eccentric wheel (10) is located below the rotating disc (4), and the eccentric wheel (10) is provided with a stepped portion (11); A connecting rod (12) fixedly arranged on the bottom of the rotating disc (4), wherein the eccentric wheel (10) is eccentric to the center of the rotating disc (4), the stepped portion (11) of the eccentric wheel (10) is in contact with the connecting rod (12), so that the stepped portion (11) is intermittently in contact with the connecting rod (12) when the eccentric wheel (10) is driven to rotate by the rotating motor (9), thereby driving the rotating disc (4) to intermittently rotate.
2. The annealing apparatus for copper pipe processing according to claim 1, wherein The number of the connecting rods (12) is two.
3. The annealing apparatus for copper pipe processing according to claim 1, wherein The number of the heating elements is multiple.
4. The annealing apparatus for copper pipe processing according to claim 3, wherein The multiple heating elements are arranged in a straight line and above the rotating disc (4).
5. The annealing apparatus for copper pipe processing according to claim 4, wherein The heating element is a silicon-carbon rod (13).
6. The annealing apparatus for copper pipe processing according to claim 1, wherein The top of the rotating disc (4) is provided with a placing groove (5), and the shape of the placing disc (3) is matched with the shape of the placing groove (5), so that the placing disc (3) is stably placed in the placing groove (5).
7. The annealing apparatus for copper pipe processing according to claim 1, wherein The shape of the rotating disc (4) is matched with the shape of the mounting groove (7), so that the rotating disc (4) is stably arranged in the mounting groove (7).
8. The annealing apparatus for copper pipe processing according to claim 1, wherein The shape of the sliding block (14) is matched with the shape of the sliding groove (15), so that the sliding block (14) is stably arranged in the sliding groove (15).