Continuous annealing device for preventing deformation of copper pipe

By designing an insulated box and a cooling pool, and utilizing a combination of support pipes and electromagnets to support the structure, the problem of deformation during copper tube annealing was solved, resulting in a simplified device and reduced costs.

CN224148115UActive Publication Date: 2026-04-21HENAN YUXING COPPER IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HENAN YUXING COPPER IND CO LTD
Filing Date
2025-05-27
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

Copper tubes are prone to deformation due to expansion and contraction during annealing, which affects quality. Furthermore, existing equipment is complex and costly.

Method used

The structure adopts an insulated box and cooling pool. Through the combination of support pipe, positioning support rod and electromagnet, the support pipe limits the outer wall of the copper tube, and the positioning support rod and adsorption support rod support the inner wall of the copper tube to avoid expansion and contraction deformation. At the same time, the support structure can be adjusted according to the size of the copper tube.

Benefits of technology

It effectively prevents the deformation of copper tubes during the annealing process, simplifies the equipment structure, and reduces production costs and maintenance expenses.

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Abstract

The utility model discloses a continuous annealing device for preventing deformation of a copper pipe, and relates to the technical field of copper pipe processing. The device comprises a heat preservation box and a cooling pond, a supporting pipe is inserted into one end of the heat preservation box in a penetrating mode, the cooling pond is arranged on one side of the heat preservation box, a first supporting frame and a second supporting frame are arranged on the top of the cooling pond, and an electromagnet is fixedly clamped to the bottom of the second supporting frame; and an adsorption supporting rod is clamped and fixed at one end of the positioning supporting rod. Through the arrangement of the heat preservation box and the cooling pond, the problems that when the copper pipe is heated, the copper pipe expands to a certain degree, when the copper pipe is cooled, the copper pipe contracts to a certain degree, the copper pipe is prone to slight deformation due to multiple times of annealing treatment, the positioning structure of the copper pipe is complex, and cost and maintenance expenditure are high are solved.
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Description

Technical Field

[0001] This utility model belongs to the field of copper tube processing technology, and in particular relates to a continuous annealing device for preventing copper tube deformation. Background Technology

[0002] Copper pipe, a type of non-ferrous metal pipe, is a seamless tube made by pressing or drawing. Copper pipe has excellent electrical and thermal conductivity, corrosion resistance, ease of processing and connection, and is lightweight. It is a primary material for conductive and heat dissipation components in electronic products and is the first choice for water supply, heating, and cooling pipes in residential buildings. After copper pipe is formed, it usually needs to undergo annealing. Annealing is a metal heat treatment process that involves slowly heating the metal to a certain temperature, holding it for a sufficient time, and then cooling it at an appropriate rate. Annealing can reduce the hardness of the metal, improve machinability, reduce residual stress, stabilize dimensions, refine grains, adjust the microstructure, eliminate microstructural defects, and homogenize the material structure and composition. Annealing equipment can assist workers in annealing copper pipes, improving processing efficiency. However, it still has the following drawbacks in practical use:

[0003] Utility model CN222665931U discloses a multi-segment temperature-controlled continuous annealing furnace for high-performance copper tube production. The furnace includes a dust-blowing mechanism fixedly connected to the top of the furnace structure, and an adjustment mechanism fixedly connected to the inside of the dust-blowing mechanism. The furnace structure comprises a furnace body with a conveyor belt fixedly connected to the top and an annealing hood fixedly connected to the top. The dust-blowing mechanism includes a transmission box fixedly connected to the top of the annealing hood. The annealing device adjusts the temperature of the copper tube to perform annealing treatment. However, in actual operation, because the copper tube is hollow, it expands when heated and contracts when cooled, often due to the lack of internal support. Repeated annealing processes can lead to slight deformation of the copper tube, affecting its quality.

[0004] When annealing copper tubes, a positioning structure is usually required to ensure the stability of the copper tubes during processing. Since the dimensions of copper tubes vary from batch to batch, the positioning structure often needs to be adjustable to be applicable to copper tubes of various sizes. This results in a more complex annealing device structure and higher costs and maintenance expenses. Utility Model Content

[0005] The purpose of this invention is to provide a continuous annealing device to prevent copper tube deformation. By using an insulated box and a cooling pool, it solves the problem that when copper tubes are heated during annealing, they expand and shrink when cooled. Repeated annealing often leads to slight deformation of the copper tubes, affecting their quality. Furthermore, the copper tubes require a relatively precise positioning structure to ensure stability during processing, resulting in a complex annealing device structure and high costs and maintenance expenses.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model is a continuous annealing device for preventing deformation of copper tubes, including a heat preservation box and a cooling pool. A support tube is inserted through one end of the heat preservation box, and a cooling pool is provided on one side of the heat preservation box. A first support frame and a second support frame are provided on the top of the cooling pool. An electromagnet is snapped and fixed at the bottom of the second support frame. A positioning support rod is provided on the top of the first support frame, and an adsorption support rod is snapped and fixed at one end of the positioning support rod.

[0008] Workers can select appropriate support tubes, positioning support rods, and adsorption support rods according to the size of the copper tube. When the copper tube passes through the insulation box, the support tubes provide support and positioning, ensuring stability during processing. During heat treatment in the insulation box, the support tubes limit the outer wall of the copper tube, preventing expansion and deformation. When the copper tube moves to the top of the first support frame, the movement causes the positioning support rod to insert into the tube. The adsorption force of the electromagnet on the adsorption support rod prevents the positioning and adsorption support rods from detaching from the top of the first and second support frames. When the copper tube is cooled on top of the first and second support frames, the positioning and adsorption support rods support the inner wall of the tube, preventing shrinkage and deformation during rapid cooling, thus ensuring the quality of the copper tube. Furthermore, the annealing device has a simple structure and is easy to operate, significantly reducing production costs and maintenance expenses.

[0009] Furthermore, a heating tube is inserted through and snapped into one end of the insulation box, and a support tube is inserted through and inserted into one end of the heating tube. The support tube is attached to the inner wall of the heating tube, and a limit plate is welded and fixed to one end of the outer circumference of the support tube. One side of the limit plate is attached to one end of the insulation box.

[0010] The heating element heats the copper tube passing through the support tube to a specified temperature. The insulation box keeps the copper tube warm, preventing excessive heat loss. The limiting plate restricts the support tube, eliminating the need for additional positioning structures and preventing it from moving with the copper tube. The structure is simple and easy to install and operate. Furthermore, by selecting a suitable support tube based on the copper tube size, the support tube can support and position the copper tube as it passes through the insulation box, ensuring stability during processing. Additionally, when the copper tube is heated in the insulation box, the support tube can limit the outer wall of the copper tube, preventing expansion and deformation.

[0011] Furthermore, a drain pipe is welded through the bottom of one side of the cooling pool, a liquid pump is snapped through the bottom of one side of the cooling pool, a connecting pipe is snapped through the top of the outer circumference of the liquid pump, a spray pipe is snapped through the top of the connecting pipe, and the spray pipe is suspended from the top of the first support frame and the second support frame.

[0012] The cold water in the cooling pool can be pumped to the spray pipe by the liquid pump, and then sprayed onto the top of the first support frame and the second support frame through the spray pipe to perform annealing treatment on the copper pipes passing through the top of the first support frame and the second support frame.

[0013] Furthermore, both the first support frame and the bottom of the electromagnet are snapped and fixed with a support base, the bottom of the support base is snapped into the cooling pool, and the top of the first support frame and the second support frame are both provided with support grooves, and the first support frame is snapped and fixed to one end of the second support frame.

[0014] Workers can select appropriate positioning support rods and adsorption support rods according to the size of the copper tube. When the copper tube moves to the upper side of the first support frame, the movement of the copper tube causes the positioning support rod to be inserted into the copper tube. The adsorption force of the electromagnet on the adsorption support rod can prevent the positioning support rod and the adsorption support rod from detaching from the top of the first support frame and the second support frame along with the copper tube.

[0015] Furthermore, the positioning support rod is attached to the support groove of the first support frame, the adsorption support rod is attached to the support groove of the second support frame, and the positioning support rod is located at one end of the support tube;

[0016] When the copper tube is cooled on top of the first and second support frames, the positioning support rod and the adsorption support rod can support the inner wall of the copper tube, preventing the copper tube from shrinking and deforming during rapid cooling, thus ensuring the quality of the copper tube.

[0017] This utility model has the following beneficial effects:

[0018] This invention solves the problem of annealing devices adjusting the temperature of copper tubes for annealing, which, in actual operation, causes expansion of the hollow copper tubes during heating and contraction during cooling due to the lack of internal support. Repeated annealing processes often result in slight deformation of the copper tubes, affecting their quality. When the copper tubes are heated in the insulated box, support tubes limit the expansion and deformation of the outer wall. When the copper tubes are cooled at the top of the first and second support frames, positioning and adsorption support rods support the inner wall of the tubes, preventing contraction and deformation during rapid cooling and ensuring tube quality. Simultaneously, electromagnets attract the adsorption support rods, maintaining their relatively stable position and allowing for continuous annealing of longer copper tubes.

[0019] This invention solves the problem of complex annealing equipment structures, high costs, and maintenance expenses caused by the use of a positioning structure to ensure the stability of copper tubes during annealing. This is achieved by setting up an insulation box and a cooling pool. The original design incorporates an insulation box and a cooling pool. The solution addresses the common problem of copper tubes needing to be positioned to accommodate different sizes due to variations in tube dimensions, which often necessitates an adjustable positioning structure. The new design allows operators to select appropriate support tubes, positioning support rods, and adsorption support rods based on the tube's dimensions. As the tube passes through the insulation box, the support tubes provide support and positioning, ensuring stability during processing. When the tube moves to the top of the first support frame, the positioning support rods engage with it. The electromagnet's adsorption force prevents the positioning and adsorption support rods from detaching from the tops of the first and second support frames, ensuring the tube remains firmly within the support grooves of both frames. This results in a simple and convenient annealing device that significantly reduces production and maintenance costs. Attached Figure Description

[0020] Figure 1 This is a structural rendering of the present invention;

[0021] Figure 2 This is a cross-sectional view of the insulated box of this utility model;

[0022] Figure 3 This is a structural diagram of the cooling pool, the first support frame, and the second support frame of this utility model;

[0023] Figure 4 This is a structural diagram of the cooling pool of this utility model;

[0024] Figure 5 This is a structural diagram of the first support frame and the second support frame of this utility model.

[0025] Figure label:

[0026] 1. Insulation box; 101. Support pipe; 102. Heating pipe; 103. Limiting plate; 2. Cooling pool; 201. First support frame; 202. Spray pipe; 203. Second support frame; 204. Drain pipe; 205. Liquid pump; 206. Connecting pipe; 207. Support groove; 208. Electromagnet; 209. Support base; 210. Positioning support rod; 211. Adsorption support rod. Detailed Implementation

[0027] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0028] Please see Figure 1-5 As shown, this utility model is a continuous annealing device for preventing copper tube deformation, including a heat preservation box 1 and a cooling pool 2. A support tube 101 is inserted through one end of the heat preservation box 1. A cooling pool 2 is provided on one side of the heat preservation box 1. A first support frame 201 and a second support frame 203 are provided on the top of the cooling pool 2. An electromagnet 208 is snapped and fixed at the bottom of the second support frame 203. A positioning support rod 210 is provided on the top of the first support frame 201. An adsorption support rod 211 is snapped and fixed at one end of the positioning support rod 210.

[0029] Workers select a suitable support tube 101 according to the size of the copper tube and insert it into the heating tube 102. Positioning support rod 210 and adsorption support rod 211 are placed in the support grooves 207 of the first support frame 201 and the second support frame 203. During the annealing process of the copper tube, cold water is poured into the cooling pool 2, and the electromagnet 208 is energized to adsorb and position the adsorption support rod 211. One end of the shaped copper tube is inserted into the support tube 101 and heated by the heating tube 102. The support tube 101 limits the outer wall of the copper tube to prevent expansion and deformation. When one end of the copper tube moves to the upper side of the first support frame 201, the movement of the copper tube causes the positioning support rod 210 to be inserted into the copper tube. The electromagnet 208 attracts the adsorption support rod 211, preventing the positioning support rod 210 and the adsorption support rod 211 from detaching from the top of the first support frame 201 and the second support frame 203 along with the copper tube. At the same time, the copper tube is kept close to the support groove 207. When the copper tube is cooled at the top of the first support frame 201 and the second support frame 203, the positioning support rod 210 and the adsorption support rod 211 support the inner wall of the copper tube, preventing the copper tube from shrinking and deforming when it cools down rapidly.

[0030] Among them, such as Figure 1-2As shown, a heating tube 102 is inserted through and snapped into one end of the heat preservation box 1, and a support tube 101 is inserted through and inserted into one end of the heating tube 102. The support tube 101 is attached to the inner wall of the heating tube 102, and a limit plate 103 is welded and fixed to one end of the outer circumference of the support tube 101. One side of the limit plate 103 is attached to one end of the heat preservation box 1.

[0031] Workers select a suitable support tube 101 according to the size of the copper tube and insert it into the heating tube 102. They also attach the limiting plate 103 to one end of the insulation box 1. After one end of the copper tube is inserted into the support tube 101, the heating tube 102 is controlled to heat the support tube 101, further heating the copper tube to the specified temperature. At the same time, the support tube 101 limits the outer wall of the copper tube to prevent the copper tube from expanding and deforming.

[0032] Among them, such as Figure 1 , 3 As shown in Figure 4, a drain pipe 204 is welded through the bottom of one side of the cooling pool 2, a liquid pump 205 is snapped through the bottom of one side of the cooling pool 2, a connecting pipe 206 is snapped through the top of the outer periphery of the liquid pump 205, a spray pipe 202 is snapped through the top of the connecting pipe 206, and the spray pipe 202 is suspended from the top of the first support frame 201 and the second support frame 203.

[0033] When the copper pipe passes the top of the first support frame 201 and the second support frame 203, the liquid pump 205 pumps the cold water in the cooling pool 2 into the spray pipe 202 through the connecting pipe 206, and sprays the cold water onto the top of the first support frame 201 and the second support frame 203 through the spray pipe 202 to cool the copper pipe.

[0034] Among them, such as Figure 1 , 3 As shown in Figure 5, the bottom of the first support frame 201 and the electromagnet 208 are both snapped and fixed with a support base 209. The bottom of the support base 209 is snapped into the cooling pool 2. The top of the first support frame 201 and the second support frame 203 are both provided with support grooves 207. The first support frame 201 is snapped and fixed to one end of the second support frame 203. The positioning support rod 210 is attached to the support groove 207 of the first support frame 201, and the adsorption support rod 211 is attached to the support groove 207 of the second support frame 203. The positioning support rod 210 is located at one end of the support tube 101.

[0035] Workers select appropriate positioning support rods 210 and adsorption support rods 211 according to the size of the copper tube and place them in the support groove 207. When one end of the copper tube moves to the upper side of the first support frame 201, the electromagnet 208 is energized to adsorb and position the adsorption support rod 211. The movement of the copper tube causes the positioning support rod 210 to be inserted into the copper tube. Through the adsorption force of the electromagnet 208 on the adsorption support rod 211, the positioning support rod 210 and the adsorption support rod 211 are prevented from detaching from the top of the first support frame 201 and the second support frame 203 along with the copper tube. At the same time, the copper tube is kept close to the support groove 207. When the copper tube is cooled on the top of the first support frame 201 and the second support frame 203, the positioning support rod 210 and the adsorption support rod 211 support the inner wall of the copper tube to prevent the copper tube from shrinking and deforming when it cools down rapidly.

[0036] The specific working principle of this utility model is as follows: The operator selects a suitable support tube 101 according to the size of the copper tube and inserts it into the heating tube 102. The positioning support rod 210 and the adsorption support rod 211 are placed in the support grooves 207 of the first support frame 201 and the second support frame 203. During the annealing process of the copper tube, cold water is poured into the cooling pool 2, and the electromagnet 208 is energized to adsorb and position the adsorption support rod 211. After one end of the copper tube is inserted into the support tube 101, the heating tube 102 is controlled to heat the support tube 101, further heating the copper tube to the specified temperature. Simultaneously, the support tube 101 limits the outer wall of the copper tube to prevent expansion and deformation. When the copper tube… When the end moves to the upper side of the first support frame 201, the movement of the copper tube causes the positioning support rod 210 to be inserted into the copper tube. The electromagnet 208 attracts the adsorption support rod 211, preventing the positioning support rod 210 and the adsorption support rod 211 from detaching from the top of the first support frame 201 and the second support frame 203 along with the copper tube. At the same time, the copper tube is tightly attached to the support groove 207. The liquid pump 205 pumps the cold water in the cooling pool 2 to the spray pipe 202 through the connecting pipe 206, and sprays the cold water onto the top of the first support frame 201 and the second support frame 203 through the spray pipe 202 to cool the copper tube. The positioning support rod 210 and the adsorption support rod 211 support the inner wall of the copper tube to prevent the copper tube from shrinking and deforming when it cools down rapidly.

[0037] The above are merely preferred embodiments of the present utility model and do not limit the present utility model. Any modifications, equivalent substitutions, or improvements made to the technical solutions described in the foregoing embodiments, or to some of the technical features, shall fall within the protection scope of the present utility model.

Claims

1. A continuous annealing device for preventing deformation of copper tubes, comprising an insulation box (1) and a cooling bath (2), characterized in that: One end of the heat preservation box (1) is connected to a support tube (101). A cooling pool (2) is provided on one side of the heat preservation box (1). A first support frame (201) and a second support frame (203) are provided on the top of the cooling pool (2). An electromagnet (208) is fixedly attached to the bottom of the second support frame (203). A positioning support rod (210) is provided on the top of the first support frame (201). An adsorption support rod (211) is fixedly attached to one end of the positioning support rod (210).

2. The continuous annealing apparatus for preventing deformation of a copper pipe according to claim 1, characterized by: A heating tube (102) is inserted through one end of the heat preservation box (1), and a support tube (101) is inserted through one end of the heating tube (102). The support tube (101) is attached to the inner wall of the heating tube (102), and a limiting plate (103) is welded and fixed to one end of the outer circumference of the support tube (101). One side of the limiting plate (103) is attached to one end of the heat preservation box (1).

3. The continuous annealing apparatus for preventing deformation of copper tubes according to claim 1, characterized in that: A drain pipe (204) is welded through the bottom of one side of the cooling pool (2), and a liquid pump (205) is snapped through the bottom of one side of the cooling pool (2). A connecting pipe (206) is snapped through the top of the outer circumference of the liquid pump (205), and a spray pipe (202) is snapped through the top of the connecting pipe (206). The spray pipe (202) is suspended from the top of the first support frame (201) and the second support frame (203).

4. The continuous annealing apparatus for preventing deformation of copper tubes according to claim 1, characterized in that: The first support frame (201) and the electromagnet (208) are both fixed with a support base (209) at the bottom. The support base (209) is fixed in the cooling pool (2) at the bottom. The first support frame (201) and the second support frame (203) are both provided with support grooves (207) at the top. The first support frame (201) is fixed to one end of the second support frame (203).

5. The apparatus for preventing deformation of copper tubes according to claim 4, wherein: The positioning support rod (210) is attached to the support groove (207) of the first support frame (201), the adsorption support rod (211) is attached to the support groove (207) of the second support frame (203), and the positioning support rod (210) is located at one end of the support tube (101).

Citation Information

Patent Citations

  • Multi-section temperature control continuous annealing furnace for high-performance copper pipe production

    CN222665931U