Annealing furnace for copper pipe machining

Abstract

The utility model relates to the technical field of annealing furnaces, in particular to an annealing furnace for copper pipe processing, which comprises a base, a heating furnace is mounted at the top of the base, strip-shaped mounting plates are mounted on two sides of the top of the base, and a plurality of conveying rollers are rotatably connected between the two strip-shaped mounting plates and inside the heating furnace. The tops of the two ends of each strip-shaped mounting plate are each provided with a fixing base, a lead screw is rotationally connected between each pair of fixing bases, and one end of each lead screw is connected with a second driving motor. A lead screw can be driven to rotate through a second driving motor, then a second connecting block can be controlled to move horizontally, a first connecting block can be synchronously driven to move synchronously under the action of a first connecting plate and a second connecting plate, the distance between limiting rollers can be adjusted according to the diameter of a copper pipe, the copper pipe is limited, and the copper pipe is prevented from being damaged. And uneven heating caused by the fact that the copper pipes are stacked together in the heating and annealing process is avoided, and the using effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of annealing furnaces, in particular to an annealing furnace for copper tube processing. Background Art

[0002] Annealing is generally a metal heat treatment process in which metal parts are slowly heated to a certain temperature in different annealing furnaces, kept warm for a period of time, and then cooled at an appropriate speed. Copper tubes need to be annealed to increase their process performance during the processing and production process.

[0003] Existing annealing furnaces typically use rollers to transport copper tubes into the furnace for heating and annealing. However, due to the cylindrical shape of the copper tubes, multiple tubes are stacked together during annealing, resulting in uneven heating and poor annealing results. Furthermore, the annealing furnaces have openings at both ends, exposing the copper tubes to oxygen from the outside air during heating and annealing. This easily oxidizes the copper tube surface, resulting in poor performance. Therefore, we propose an annealing furnace for copper tube processing. Utility Model Content

[0004] The purpose of the utility model is to solve the above-mentioned shortcomings in the prior art and to propose an annealing furnace for copper tube processing.

[0005] In order to achieve the above object, the utility model adopts the following technical solution: an annealing furnace for copper tube processing is designed, comprising a base, a heating furnace is installed on the top of the base, strip mounting plates are installed on both sides of the top of the base, and a plurality of conveying rollers are rotatably connected between the two strip mounting plates and inside the heating furnace;

[0006] A fixing seat is installed on the top of both ends of each strip-shaped mounting plate, and a screw rod is rotatably connected between each pair of fixing seats. One end of the screw rod is connected to a second drive motor, and the second drive motor is fixed on the side of the fixing seat;

[0007] A second connecting block is provided at one end of each screw rod, the top of the second connecting block is engaged with the screw rod thread, and a plurality of first connecting blocks are also slidably sleeved on the side of the screw rod, and a strip connecting plate is installed at the bottom of each first connecting block and each pair of second connecting blocks, and both ends of each strip connecting plate pass through the heating furnace, and the bottom of each strip connecting plate is vertically connected to a limit roller, each set of limit rollers is located between the conveying rollers, and the bottom ends of two adjacent strip connecting plates are connected by a connecting mechanism;

[0008] An air pump is installed on the top of the heating furnace through a bracket. The air inlet of the air pump is connected to an external inert gas source through an air inlet pipe. The air outlet of the air pump is connected to a gas pipe. A heat exchange pipe is installed at the bottom of the heating furnace. The end of the gas pipe away from the air pump passes through the top of the heating furnace and is connected to the heat exchange pipe.

[0009] The heating furnace is provided with exhaust pipes on both sides of the interior, one end of each exhaust pipe is connected with the heat exchange pipe through a pipe, and a plurality of exhaust holes are formed on the proximal surface of the two exhaust pipes.

[0010] Preferably, the connecting mechanism comprises a second connecting plate rotatably connected to the bottom of each strip-shaped connecting plate, the two ends of each second connecting plate extend to the outside of the strip-shaped connecting plate, and the proximal ends of the two adjacent second connecting plates are rotatably connected;

[0011] The proximal surfaces of the two fixing bases at the same end are provided with support bases, the top of each support base is rotatably connected with a first connecting plate, and the end of each first connecting plate away from the support base is rotatably connected with the end of the adjacent second connecting plate.

[0012] Preferably, the two ends of each conveying roller penetrate through the strip-shaped connecting plate and the side wall of the heating furnace, one end of each conveying roller is connected with a chain wheel, the two adjacent chain wheels are connected through a chain, and the other end of one of the conveying rollers is connected with a first driving motor, and the first driving motor is fixed on the side of the strip-shaped connecting plate.

[0013] Preferably, the bottom of each limiting roller extends below the conveying roller.

[0014] Preferably, at least one guide rod is connected between the two fixing bases at the same end, and each first connecting block and each second connecting block is slidably sleeved on the corresponding guide rod.

[0015] Preferably, the heat exchange pipe is made of stainless steel or copper.

[0016] Preferably, the heat exchange pipe and the exhaust pipe are arranged in an "S" shape or a serpentine shape.

[0017] Preferably, the distance between the three adjacent conveying rollers is less than the length of the copper pipe.

[0018] The design scheme of the utility model has the beneficial effects in the application process:

[0019] 1. The second driving motor can drive the screw rod to rotate, thereby controlling the horizontal movement of the second connecting block, and under the action of the first connecting plate and the second connecting plate, the first connecting block can be synchronously moved, the distance between the limiting rollers can be adjusted according to the diameter of the copper pipe, the copper pipe is limited, the copper pipe is prevented from being stacked together during the heating and annealing process, and the heating is prevented from being uneven, thereby improving the use effect.

[0020] 2. The inert gas in the gas source can be delivered into the heat exchange pipe through the air inlet pipe and the air delivery pipe by the air delivery pump, and after being heated by the heating furnace, the inert gas is blown to the surface of the copper pipe through the exhaust holes on the exhaust pipe, so that the oxygen in the air is separated from the copper pipe, the copper pipe is prevented from being oxidized, and the use effect is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural diagram of the utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the screw rod, the first connecting block and the second connecting block of the present invention;

[0023] Figure 3 This is a schematic diagram of the structure of the gas delivery pump, heat exchange pipe and exhaust pipe of the utility model;

[0024] Figure 4 This is a top view of the conveying roller and the first drive motor structure of the utility model.

[0025] In the figure: 1. Base; 2. Fixed seat; 3. Air inlet pipe; 4. Air pump; 5. Air pipe; 6. Heating furnace; 7. Strip connecting plate; 8. Screw rod; 9. Conveyor roller; 10. Guide rod; 11. First connecting block; 12. Second connecting block; 13. First drive motor; 14. Strip mounting plate; 15. Limiting roller; 16. Second drive motor; 17. First connecting plate; 18. Support seat; 19. Second connecting plate; 20. Exhaust hole; 21. Heat exchange tube; 22. Exhaust pipe; 23. Sprocket. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0027] Reference Figures 1-4 , an annealing furnace for copper tube processing, comprising a base 1, a heating furnace 6 is installed on the top of the base 1, strip mounting plates 14 are installed on both sides of the top of the base 1, and a plurality of conveying rollers 9 are rotatably connected between the two strip mounting plates 14 and inside the heating furnace 6, both ends of each conveying roller 9 pass through the strip connecting plate 7 and the side wall of the heating furnace 6, and one end of each conveying roller 9 is connected to a sprocket 23, and two adjacent sprockets 23 are connected by a chain, and the other end of one of the conveying rollers 9 is connected to a first drive motor 13, which is fixed to the side of the strip connecting plate 7. In actual use, the staff can place the copper tube on the conveying roller 9, such as Figure 4 As shown, the first drive motor 13 can synchronously drive the conveying roller 9 to rotate under the action of the sprocket 23 and the chain, and convey the copper tube to the heating furnace 6 for heating and annealing treatment.

[0028] like Figure 1 and Figure 2As shown, the top of both ends of each strip-shaped mounting plate 14 is provided with a fixed seat 2, each pair of fixed seats 2 is rotationally connected with a lead screw 8, one end of the lead screw 8 is connected with a second driving motor 16, the second driving motor 16 is fixed on the side surface of the fixed seat 2, one end of each lead screw 8 is provided with a second connecting block 12, the top of the second connecting block 12 is threadedly connected with the lead screw 8, in actual use, the second driving motor 16 can drive the lead screw 8 to rotate, thereby adjusting the horizontal position of the second connecting block 12.

[0029] As shown in Figure 1 and Figure 2 , the side surface of the lead screw 8 is also slidably sleeved with a plurality of first connecting blocks 11, the bottom of each first connecting block 11 and each pair of second connecting blocks 12 is provided with a strip-shaped connecting plate 7, both ends of each strip-shaped connecting plate 7 penetrates the heating furnace 6, and the bottom of each strip-shaped connecting plate 7 is perpendicularly connected with a limiting roller 15, each group of limiting rollers 15 is located between the conveying rollers 9, and the bottom of each limiting roller 15 extends below the conveying roller 9, in actual use, the limiting roller 15 can limit the copper pipe, so that the copper pipes are not stacked together during heating and annealing, improving the annealing effect.

[0030] As shown in Figure 1 , the similar surfaces of the two fixed seats 2 located at the same end are provided with a support seat 18, the top of the support seat 18 is rotationally connected with a first connecting plate 17, and the bottom of each strip-shaped connecting plate 7 is rotationally connected with a second connecting plate 19, both ends of each second connecting plate 19 extend to the outside of the strip-shaped connecting plate 7, the similar ends of the two adjacent second connecting plates 19 are rotationally connected, and one end of each first connecting plate 17 away from the support seat 18 is rotationally connected with the end of the adjacent second connecting plate 19, in actual use, when the second connecting block 12 moves horizontally under the action of the lead screw 8, a plurality of first connecting blocks 11 can be synchronously moved under the action of the second connecting plate 19 and the first connecting plate 17, thereby adjusting the distance between the adjacent limiting rollers 15, which can be adjusted according to the diameter of the copper pipe, improving the use effect.

[0031] As shown in Figure 1 and Figure 3As shown, the top of the heating furnace 6 is provided with the gas conveying pump 4 through a support, the gas inlet end of the gas conveying pump 4 is connected with an external inert gas source through the gas inlet pipe 3, the gas outlet end of the gas conveying pump 4 is connected with the gas conveying pipe 5, the internal bottom end of the heating furnace 6 is provided with the heat exchange pipe 21, the end of the gas conveying pipe 5 far from the gas conveying pump 4 penetrates through the top of the heating furnace 6 and is connected with the heat exchange pipe 21, the heat exchange pipe 21 is made of stainless steel or metal copper material, or other high-temperature resistant heat conductive material, in actual use, the inert gas in the external gas source can be conveyed into the heat exchange pipe 21 through the gas inlet pipe 3 and the gas conveying pipe 5 by the gas conveying pump 4, the inert gas in the heat exchange pipe 21 is heated by the high temperature in the heating furnace 6, so that the temperature of the inert gas is consistent with the temperature in the heating furnace 6.

[0032] It should be noted that the heat exchange pipe 21 is provided in an "S" shape or a serpentine shape, so that the length of the heat exchange pipe 21 in the heating furnace 6 can be increased, so that the inert gas can be fully heated by the heating furnace 6.

[0033] As shown in the figure, Figure 3 The internal two sides of the heating furnace 6 are provided with the exhaust pipes 22, one end of each exhaust pipe 22 is connected with the heat exchange pipe 21 through a pipe, and the proximal faces of the two exhaust pipes 22 are provided with a plurality of exhaust holes 20, in actual use, the high-temperature inert gas in the heat exchange pipe 21 is conveyed into the exhaust pipe 22 and finally blown to the surface of the copper pipe through the exhaust holes 20, so that the surface of the copper pipe is isolated from the external oxygen, so that the surface of the copper pipe will not be oxidized due to annealing.

[0034] It should be noted that the exhaust pipe 22 is provided in an "S" shape or a serpentine shape, so that the distribution area of the exhaust hole 20 can be increased, and the inert gas sprayed from the exhaust hole 20 can be fully blown to the surface of the copper pipe to isolate the copper pipe from the oxygen in the air.

[0035] Specifically, in use, the staff controls the heating furnace 6 to work, and controls the gas delivery pump 4 to work at the same time, the gas delivery pump 4 delivers the inert gas in the external gas source into the heat exchange pipe 21 through the air inlet pipe 3 and the gas delivery pipe 5, after heating by the heating furnace 6, is delivered into the exhaust pipe 22 again, and is finally blown to the inside of the heating furnace 6 through the exhaust hole 20, so that the air in the heating furnace 6 is exhausted, at the same time, the staff places the copper pipe to be annealed on the conveying roller 9, then controls the first driving motor 13 to work, the first driving motor 13 drives the conveying roller 9 to rotate, the copper pipe on the conveying roller 9 is conveyed into the heating furnace 6 to be heated and annealed, in the annealing process, the exhaust hole 20 sprays the inert gas to the surface of the copper pipe, so that the surface of the copper pipe is separated from the oxygen in the external environment, and the copper pipe is prevented from being oxidized, and in the process of conveying the copper pipe, the staff can drive the lead screw 8 to rotate through the second driving motor 16, then controls the second connecting block 12 to move horizontally, and a plurality of first connecting blocks 11 at the bottom move synchronously under the action of the first connecting plate 17 and the second connecting plate 19, that is, the distance between the limiting rollers 15 can be adjusted according to the diameter of the copper pipe, the copper pipe is limited, the copper pipe is prevented from being stacked together in the use process and causing uneven heating, and the use effect is improved.

[0036] Further, as shown in Figure 2 Each first connecting block 11 and each second connecting block 12 is slidably sleeved on the corresponding guide rod 10, the first connecting block 11 and the second connecting block 12 are limited through the guide rod 10, so that the first connecting block 11 and the second connecting block 12 remain stable.

[0037] Further, the distance between the adjacent three conveying rollers 9 is less than the length of the copper pipe, so that the copper pipe will not fall between the conveying rollers 9 when conveying.

[0038] The above is only a preferred specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

Claims

1. An annealing furnace for copper pipe processing comprising a base (1), characterized in that: The top of the base (1) is provided with a heating furnace (6), and the top of the base (1) is provided with a strip-shaped mounting plate (14) on each side. The top of each strip-shaped mounting plate (14) is provided with a fixing seat (2), and each pair of fixing seats (2) is rotatably connected with a screw rod (8), one end of the screw rod (8) is connected with a second driving motor (16), and the second driving motor (16) is fixed on the side surface of the fixing seat (2). One end of each screw rod (8) is provided with a second connecting block (12), the second connecting block (12) is in threaded connection with the screw rod (8), and the side surface of the screw rod (8) is slidably sleeved with a plurality of first connecting blocks (11), the bottom of each first connecting block (11) and each pair of second connecting blocks (12) is provided with a strip-shaped connecting plate (7), the two ends of each strip-shaped connecting plate (7) penetrate through the heating furnace (6), and the bottom of each strip-shaped connecting plate (7) is perpendicularly connected with a limiting roller (15), each group of limiting rollers (15) is located between the conveying rollers (9), and the bottom of the two ends of the adjacent two strip-shaped connecting plates (7) is connected through a connecting mechanism. The top of the heating furnace (6) is provided with a gas conveying pump (4) through a support, the gas inlet end of the gas conveying pump (4) is connected with an external inert gas source through a gas inlet pipe (3), the gas outlet end of the gas conveying pump (4) is connected with a gas conveying pipe (5), and the inside bottom end of the heating furnace (6) is provided with a heat exchange pipe (21), one end of the gas conveying pipe (5) away from the gas conveying pump (4) penetrates through the top of the heating furnace (6) and is connected with the heat exchange pipe (21); The inside of the heating furnace (6) is provided with an exhaust pipe (22) on each side, one end of each exhaust pipe (22) is connected with the heat exchange pipe (21) through a pipeline, and the proximal faces of the two exhaust pipes (22) are provided with a plurality of exhaust holes (20).

2. The annealing furnace for copper pipe processing according to claim 1, characterized in that: The connecting mechanism comprises a second connecting plate (19) rotatably connected to the bottom of each strip-shaped connecting plate (7), the two ends of each second connecting plate (19) extend to the outside of the strip-shaped connecting plate (7), and the proximal ends of the two second connecting plates (19) are rotatably connected; The proximal faces of the two fixing seats (2) located at the same end are provided with a support seat (18), the top of the support seat (18) is rotatably connected with a first connecting plate (17), and one end of each first connecting plate (17) away from the support seat (18) is rotatably connected with the end of the adjacent second connecting plate (19).

3. The annealing furnace for copper pipe processing according to claim 1, characterized in that: The two ends of each conveying roller (9) penetrate through the side wall of the strip-shaped connecting plate (7) and the heating furnace (6), and one end of each conveying roller (9) is connected with a chain wheel (23), the two chain wheels (23) are connected through a chain, and the other end of one of the conveying rollers (9) is connected with a first driving motor (13).

4. The annealing furnace for copper pipe processing according to claim 1, characterized in that: The bottom of each limiting roller (15) extends below the conveying roller (9).

5. The annealing furnace for copper pipe processing according to claim 1, characterized in that: At least one guide rod (10) is connected between the two fixing bases (2) at the same end, and each first connecting block (11) and each second connecting block (12) is slidably sleeved on the corresponding guide rod (10).

6. The annealing furnace for copper pipe processing according to claim 1, characterized in that: The heat exchange pipe (21) is made of stainless steel or metal copper material.

7. The annealing furnace for copper pipe processing according to claim 6, characterized in that: The heat exchange pipe (21) and the exhaust pipe (22) are both arranged in "S" shape or serpentine shape.

8. The annealing furnace for copper pipe processing according to claim 1, characterized in that: The distance between the three adjacent conveying rollers (9) is less than the length of the copper pipe.

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