Automatic conveying type continuous casting and continuous rolling machine for copper pipe production

Abstract

The invention relates to the technical field, and discloses an automatic conveying type continuous casting and continuous rolling mill for copper pipe production, which comprises a base station I, a feeding mechanism, a rolling mechanism and a rolling mechanism, a support mechanism; a temperature measuring mechanism; a thermal insulation cover; a cooling mechanism is further installed on the first base table and comprises a cooling component for spraying cooling water to the surface of the copper pipe and a backflow component for recycling the cooling water. Accurate temperature control over the copper pipe is achieved, heat is recycled into the heat preservation cover through a spiral pipeline in the backflow component, the heat preservation effect is improved, and heat energy loss is avoided; self-lubricating of the roller is achieved, friction between the roller and the copper pipe is reduced, water is sprayed to the surface of the roller, the temperature of the surface of the roller is reduced, friction heat and deformation heat generated when the roller rolls the copper pipe are reduced, the size precision of copper pipe production is improved, and the abrasion speed of the roller is slowed down.

Description

Technical Field

[0001] This invention relates to the field of metal processing technology, and more particularly to the field of continuous casting and rolling of copper tubes, specifically to an automatic conveying type continuous casting and rolling mill for copper tube production. Background Technology

[0002] Copper tube continuous casting and rolling is an integrated, automated, and continuous production process that transforms molten copper into hollow tube blanks through a continuous casting machine, and then feeds them directly and continuously into a continuous rolling mill while hot, where they are plastically deformed and rolled into copper tubes of final or near-final size.

[0003] During the casting of copper tubes, molten copper is continuously injected from the holding furnace into the water-cooled crystallizer through a flow channel to form a solidified shell. The billet (copper tube) is then pulled out at a constant speed by a billet pulling machine. After the billet is pulled out, a conveying mechanism is used to turn the high-temperature billet (smoothly turning the vertical billet and conveying it to the horizontal rolling process). The conveying speed must be strictly synchronized with the billet pulling speed of the continuous casting machine and the bite speed of the continuous rolling mill to avoid breakage or steel piling accidents.

[0004] After entering the rolling process, the first rolling mill successfully "bites" the head of the delivered copper tube and performs continuous diameter reduction and extension rolling. Through tension control, the continuous plastic deformation of the copper tube is achieved between the rolling mills.

[0005] However, traditional copper tube continuous casting and rolling processes suffer from inaccurate temperature control. After the billet cools, it needs to be reheated to the rolling temperature, resulting in high energy consumption and large temperature fluctuations. This leads to unstable microstructure and properties of the copper tube during rolling (coarse grains, oxidation, etc.). Segmented production requires multiple transfers of the billet, resulting in discontinuous process connections and a tendency for steel to pile up or break due to asynchronous speeds. Traditional rolling equipment suffers from insufficient lubrication, and the friction between the rolls and the copper tube generates high temperatures (frictional heat and deformation heat), affecting the dimensional accuracy of copper tube production and accelerating roll wear. Therefore, we need to propose an automatic conveying type continuous casting and rolling mill for copper tube production. Summary of the Invention

[0006] The purpose of this invention is to provide an automatic conveying continuous casting and rolling mill for copper tube production. It utilizes annular water pipes and nozzles to spray and cool the copper tube's periphery. An infrared temperature sensor monitors the copper tube temperature in real time. Based on the measurement results, the copper tube is selectively sprayed a second time to achieve precise temperature control. The cooled copper tube then enters an insulation hood, and a spiral pipe in the return component recovers heat back into the insulation hood, improving the insulation effect and avoiding heat loss, thus solving the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: an automatic conveying continuous casting and rolling mill for copper tube production, comprising a base and, sequentially mounted on the base:

[0008] The feeding mechanism is used to drive the cast copper tube to move to the subsequent process.

[0009] The support mechanism, located at the bottom of the copper tube, supports the copper tube and prevents it from bending due to its own weight.

[0010] The temperature measuring mechanism measures the temperature of the cooled copper tube;

[0011] The insulation cover ensures that the temperature of the copper tube does not drop significantly before it is transported to the rolling process;

[0012] A cooling mechanism is also installed on the base, which includes a cooling component that sprays cooling water onto the surface of the copper tube and a return component that recovers the cooling water.

[0013] The cooling component includes multiple bases, each of which is equipped with an annular water pipe through which a copper pipe passes, and the inner wall of the annular water pipe is provided with nozzles arranged in an annular pattern at equal intervals.

[0014] The return flow component includes a water collection cover, a filter box for filtering cooling water, and a spiral pipe installed inside the insulation cover.

[0015] It also includes a base 2 and multiple rolling mechanisms mounted on the base 2. The rolling mechanism includes a housing with a Y-shaped mounting groove 1. Three rolls for rolling copper tubes are rotatably mounted inside the mounting groove 1. The rolls are provided with a lubrication structure to reduce friction between the rolls and the copper tubes. The housing is also equipped with cooling water pipes to cool the rolls.

[0016] A groove is provided on the base, and a drainage hole penetrating the base is provided at the bottom of the groove. The inner sidewall of the groove is set as an outwardly expanding inclined surface.

[0017] The feeding mechanism includes two symmetrically arranged side plates, two rotating shafts rotatably mounted between the two side plates, drive rollers sleeved on the outer walls of the two rotating shafts, and drive gears sleeved on the outer walls of the two rotating shafts. The two drive gears mesh, and a motor is fixed on one of the side plates, and the motor is connected to one of the rotating shafts.

[0018] The support mechanism includes two symmetrically arranged side plates, and a support roller is rotatably mounted between the two side plates. The middle section of the support roller has a V-shaped groove.

[0019] The cooling component also includes a support plate connected to the second side plate. A water tank for providing water for spray cooling is installed on the support plate. A pipe is connected to the outlet of the water tank. Pipes are connected to the multiple annular water pipes. Pipes are connected to pipes. A valve is installed on the outer wall of pipe 1. A valve is installed on the outer wall of pipe 2.

[0020] The water collection cover and the filter box are connected by pipe three. The filter box is equipped with a filter element. The water outlet of the filter box is connected to pipe four. The water return port of the water tank is connected to pipe five. The spiral pipe is connected between pipe four and pipe five. The outer wall of the spiral pipe is connected to heat dissipation fins.

[0021] The insulation cover has a channel for copper pipes to pass through, and the insulation cover has an inner cavity for installing spiral pipes.

[0022] The included angle between the three rollers is degrees. The rollers are provided with variable diameter grooves for rolling copper tubes into different diameters. The outer shell is equipped with a drive component for driving the rollers to rotate. The inner shell is provided with a mounting groove two that communicates with mounting groove one. The drive component includes a motor two installed on the side of the outer shell and three rotating shafts two rotatably installed inside the mounting groove two. The three rollers are respectively sleeved on the outer walls of the three rotating shafts two. The output shaft of the motor two is connected to one of the rotating shafts two.

[0023] One of the rotating shafts connected to the output shaft of motor two has helical gears one sleeved on the outer walls of both ends, and the other two rotating shafts have helical gears two sleeved on the outer walls of one end, with the helical gears one meshing with the helical gears two.

[0024] The lubrication structure includes an oil cavity inside the roll that stores lubricating oil, an oil inlet communicating with the oil cavity on one side of the roll, and an oil outlet communicating with the oil cavity on the surface of the variable diameter groove.

[0025] The outer casing is also provided with mounting holes, and the cooling water pipe is installed inside the mounting holes. The surface of the cooling water pipe is provided with multiple sets of water spray nozzles.

[0026] Compared with the prior art, the beneficial effects of the present invention are:

[0027] 1. This invention utilizes a ring-shaped water pipe and nozzles to spray and cool the copper pipe around its periphery. An infrared temperature sensor monitors the copper pipe temperature in real time. Based on the measurement results, the copper pipe is selectively sprayed a second time to achieve precise temperature control. After cooling, the copper pipe enters the insulation cover, and the spiral pipe in the return component recovers the heat back into the insulation cover, improving the insulation effect and avoiding heat loss.

[0028] 2. After the copper tubes are cast and cooled and kept warm, they directly enter the rolling process. The feeding mechanism and the driving speed of the driving component in the first rolling mechanism are synchronized, which ensures the seamless connection between the casting and rolling processes, increases the continuity of the process, and avoids steel piling or breakage caused by asynchronous speed.

[0029] 3. Through the design of the lubrication structure and cooling water pipe, this invention achieves self-lubrication of the rolls during the copper tube rolling process, reducing the friction between the rolls and the copper tube. It also sprays water on the surface of the rolls to reduce the surface temperature of the rolls, thereby reducing the frictional heat and deformation heat during the rolling of the copper tubes, improving the dimensional accuracy of copper tube production, and slowing down the wear rate of the rolls. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of the present invention;

[0031] Figure 2 This is a schematic diagram of the structure of the base, feeding mechanism, support mechanism, and temperature measuring mechanism of the present invention;

[0032] Figure 3 This is a schematic diagram of the cooling mechanism of the present invention;

[0033] Figure 4 This is a schematic diagram of the rolling mechanism of the present invention;

[0034] Figure 5 This is a schematic diagram of the structure of the roll of the present invention;

[0035] Figure 6 This is a schematic diagram of the structure of the heat insulation cover of the present invention.

[0036] In the diagram: 1. Base 1; 11. Groove; 12. Drainage hole; 2. Feeding mechanism; 21. Side plate 1; 22. Motor 1; 23. Shaft 1; 24. Drive roller; 25. Drive gear; 3. Support mechanism; 31. Side plate 2; 32. Support roller; 33. V-groove; 4. Cooling mechanism; 40. Support plate; 41. Water tank; 42. Pipe 1; 43. Pipe 2; 44. Valve 1; 45. Valve 2; 46. Base; 47. Annular water pipe; 48. Nozzle; 49. Water collection cover; 410. Pipe 3; 411. Filter box; 412. Pipe 4; 413. Valve Door 3; 414, Spiral pipe; 415, Heat sink; 416, Pipe 5; 5, Temperature measuring mechanism; 51, Side plate 3; 52, Infrared temperature sensor; 6, Insulation cover; 61, Channel; 62, Inner cavity; 7, Base 2; 8, Rolling mechanism; 81, Outer shell; 82, Mounting slot 1; 83, Mounting slot 2; 84, Mounting hole; 85, Motor 2; 86, Rotating shaft 2; 87, Helical gear 1; 88, Roll; 881, Variable diameter groove; 882, Oil cavity; 883, Oil outlet; 884, Oil inlet; 89, Helical gear 2; 810, Cooling water pipe; 811, Spray nozzle. Detailed Implementation

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] Please see Figure 1-6 The present invention provides a technical solution: an automatic conveying type continuous casting and rolling mill for copper tube production, including a base 1 located at the rear end of the steel pipe casting equipment, a feeding mechanism 2, a support mechanism 3, a temperature measuring mechanism 5, and a heat preservation cover 6 installed sequentially on the base 1, and a cooling mechanism 4 installed on the base 1.

[0039] like Figure 2 As shown, the feeding mechanism 2 is used to drive the cast copper tube to move to the subsequent process. The feeding mechanism 2 includes two symmetrically arranged side plates 21. Two rotating shafts 23 are rotatably installed between the two side plates 21. The outer walls of the two rotating shafts 23 are fitted with drive rollers 24. The copper tube passes through the space between the two drive rollers 24. The outer walls of the two rotating shafts 23 are also fitted with drive gears 25. The two drive gears 25 mesh. A motor 22 is fixed on one of the side plates 21. The motor 22 is connected to one of the rotating shafts 23.

[0040] It is worth noting that each of the two drive rollers 24 has a groove on its opposite side (arc side) to fit the outer wall of the copper tube. The copper tube is moved to the next process by the rotation of the two drive rollers 24.

[0041] like Figure 2 As shown, multiple support mechanisms 3 are provided at the bottom of the copper tube to support it and prevent it from bending due to its own weight. The support mechanism 3 includes two symmetrically arranged side plates 31, and a support roller 32 is rotatably installed between the two side plates 31. A V-groove 33 is opened in the middle section of the support roller 32. The copper tube during processing is located inside the V-groove 33, and the outer wall of the copper tube contacts the two inner side walls of the V-groove 33, which supports the copper tube. The design of the V-groove 33 can accommodate copper tubes of different diameters.

[0042] like Figure 3 As shown, the cooling mechanism 4 includes a cooling component that sprays cooling water onto the surface of the copper tube and a return component that recovers the cooling water. In addition, to ensure the return of cooling water, a groove 11 is provided on the base 1. A drain hole 12 penetrating the base 1 is provided at the bottom of the groove 11. Multiple drain holes 12 are arranged in a matrix. Furthermore, the inner sidewall of the groove 11 is set as an outwardly expanding inclined surface, which can increase the area for receiving the sprayed cooling water, reduce the residue of cooling water on the base 1, and facilitate the flow of the sprayed cooling water into the groove 11.

[0043] It should be noted that the cooling component includes a support plate 40 connected to the side plate 31. A water tank 41 for providing water for spray cooling is installed on the support plate 40. The water tank 41 is provided with an inlet for filling cooling water and a drain outlet for discharging cooling water (the inlet and drain outlet are basic features of the water tank 41 and are not shown in the figure).

[0044] The cooling component also includes multiple bases 46 mounted on the base 1 and spanning the groove 11. Each base 46 is equipped with an annular water pipe 47 through which a copper pipe passes. The inner wall of the annular water pipe 47 is provided with nozzles 48 arranged in annularly at equal intervals, that is, the nozzles 48 surround the copper pipe to facilitate all-round spraying and cooling of the outer wall of the copper pipe. The outlet of the water tank 41 is connected to a pipe 42, and multiple annular water pipes 47 are connected to pipes 43. The connection between pipes 42 and pipes 43 facilitates the discharge of cooling water in the water tank 41 into the annular water pipes 47.

[0045] It is worth noting that valve 44 is installed on the outer wall of pipe 42 and valve 45 is installed on the outer wall of pipe 43. Valve 44 is used to control the flow of water in all annular water pipes 47, while valve 45 is used to control the flow of water in the last annular water pipe 47.

[0046] like Figure 2 As shown, the temperature measuring mechanism 5 includes two symmetrically arranged side plates 51. Each side plate 51 is equipped with an infrared temperature sensor 52 for measuring the surface temperature of the copper tube. The infrared temperature sensor 52 is located between the last two annular water pipes 47. The function of placing the infrared temperature sensor 52 in this position is: after the multiple annular water pipes 47 and nozzles 48 in front of the infrared temperature sensor 52 cool down the outer wall of the copper tube, the infrared temperature sensor 52 measures the temperature of the cooled copper tube. If the temperature of the cooled copper tube is still higher than the temperature required for rolling, the last annular water pipe 47 is used to cool down the copper tube again so that the surface temperature of the copper tube reaches the temperature required for rolling.

[0047] During the copper tube spray cooling process, cooling water drips into the interior of the groove 11 and flows back to the interior of the return component through the drain hole 12.

[0048] like Figure 3 As shown, the return flow component includes a water collection cover 49 installed at the bottom of the base 1 and covering the drainage hole 12, a filter box 411 for filtering the cooling water, and a spiral pipe 414 installed inside the heat insulation cover 6. The water collection cover 49 and the filter box 411 are connected by a pipe 410. The filter box 411 is equipped with a filter element for filtering out impurities in the cooling water. The filter element includes, but is not limited to, activated carbon filter element, PP filter element, and ceramic filter element.

[0049] The outlet of the filter box 411 is connected to a pipe 412, and a valve 413 is installed on the pipe 412. The return port of the water tank 41 is connected to a pipe 416. The spiral pipe 414 is connected between the pipe 412 and the pipe 416. The outer wall of the spiral pipe 414 is connected to a heat sink 415, which is used to quickly remove the heat of the cooling water in the spiral pipe 414. The purpose of setting up the spiral pipe 414 is to utilize the heat in the cooling water (when the cooling water cools the copper pipe, the heat on the copper pipe is absorbed by the cooling water. Therefore, the heat absorbed by the cooling water must be recovered to ensure that the recovered cooling water can cool the copper pipe again).

[0050] like Figure 6 As shown, the heat insulation cover 6 is located at one end of the groove 11 (the end away from the feeding mechanism 2). The heat insulation cover 6 has a channel 61 for the copper tube to pass through, and the heat insulation cover 6 is provided with an inner cavity 62 for installing the spiral pipe 414. The inner cavity 62 is filled with heat insulation cotton. By setting the heat insulation cover 6, it can be ensured that the temperature of the copper tube will not drop significantly before it is transported to the rolling process, and will still be maintained at a suitable rolling temperature (650-850℃).

[0051] It also includes a base 2 7 and multiple rolling mechanisms 8 installed on the base 2 7. Through continuous rolling (continuous diameter reduction) by multiple rolling mechanisms 8, the copper tube is rolled into a suitable size.

[0052] Furthermore, there is a speed difference between two adjacent rolling mechanisms 8. During the rolling process, the rolling speed of the later rolling mechanism 8 is greater than that of the earlier rolling mechanism 8, causing the copper tube to be subjected to a certain tension between the two adjacent rolling mechanisms 8. The tension is used to pull the copper tube and keep it taut.

[0053] The feeding mechanism 2 and the first rolling mechanism 8 into which the copper tube enters have the same driving speed, that is, the speed at which the copper tube is pulled out of the crystallizer is the same as the speed of the first rolling, which effectively avoids steel piling or breaking of the copper tube.

[0054] like Figure 4 As shown, the rolling mechanism 8 includes a housing 81, on which a Y-shaped mounting groove 82 is provided. Three rolls 88 for rolling copper tubes are rotatably mounted inside the mounting groove 82, that is, the included angle between the three rolls 88 is 120 degrees. The rolls 88 are provided with variable diameter grooves 881 for rolling copper tubes into different diameters. The three variable diameter grooves 881 are coaxially arranged.

[0055] The outer casing 81 is equipped with a drive component that drives the rollers 88 to rotate. The inner part of the outer casing 81 is provided with a second mounting groove 83 that communicates with the first mounting groove 82. The drive component includes a second motor 85 installed on the side of the outer casing 81 and three second rotating shafts 86 rotatably installed inside the second mounting groove 83. The three rollers 88 are respectively sleeved on the outer walls of the three second rotating shafts 86. The output shaft of the second motor 85 is connected to one of the second rotating shafts 86.

[0056] Helical gear 87 is sleeved on the outer walls of both ends of one of the rotating shafts 86 connected to the output shaft of motor 2 85, and helical gear 89 is sleeved on the outer walls of one end of the other two rotating shafts 2 86, wherein helical gear 87 meshes with helical gear 89;

[0057] When the cooled copper tube is transported to the rolling mechanism 8 for rolling, the second motor 85 is running. The second motor 85 drives one of the rotating shafts 86 to rotate. This rotating shaft 86 drives the other two rotating shafts 86 to rotate through the cooperation of helical gears, thereby driving the three rollers 88 to rotate synchronously, so as to remove impurities from the copper tube.

[0058] like Figure 5As shown, to reduce friction between the roll 88 and the copper tube and lower energy consumption, a lubrication structure is provided on the roll 88. The lubrication structure includes an oil cavity 882 inside the roll 88, which stores lubricating oil. An oil inlet 884 communicating with the oil cavity 882 is provided on one side of the roll 88 to facilitate the addition of lubricating oil into the oil cavity 882. An oil outlet 883 communicating with the oil cavity 882 is provided on the surface of the variable diameter groove 881. Multiple oil outlets are arranged in a ring at equal intervals. When the roll 88 rolls the copper tube, the lubricating oil in the oil cavity 882 flows to the surface of the copper tube through the oil outlet 883, thus playing a lubricating role.

[0059] like Figure 4 As shown, in order to further reduce the frictional heat and deformation heat when the roll 88 rolls the copper tube, a cooling water pipe 810 for cooling the roll 88 is also installed on the outer shell 81. The outer shell 81 is also provided with a mounting hole 84, and the cooling water pipe 810 is installed inside the mounting hole 84. The surface of the cooling water pipe 810 is provided with multiple sets of water spray nozzles 811. The water spray nozzles 811 are aligned with the two sides of the roll 88, so that water can be sprayed directly onto the surface of the roll 88.

[0060] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic conveying continuous casting and rolling mill for copper tube production, characterized in that: Including base one (1), and the following are installed sequentially on base one (1): The feeding mechanism (2) is used to drive the cast copper tube to move to the subsequent process; The support mechanism (3) is located at the bottom of the copper pipe and supports the copper pipe to prevent it from bending due to its own weight. Temperature measuring mechanism (5) measures the temperature of the cooled copper tube; The heat insulation cover (6) ensures that the temperature of the copper tube will not drop significantly before it is transported to the rolling process; A cooling mechanism (4) is also installed on the base (1). The cooling mechanism (4) includes a cooling component that sprays cooling water onto the surface of the copper tube and a return component that recovers the cooling water. The cooling component includes multiple bases (46), each of which is equipped with an annular water pipe (47) through which a copper pipe passes, and the inner wall of the annular water pipe (47) is provided with annularly spaced nozzles (48). The return flow component includes a water collection cover (49), a filter box (411) for filtering cooling water, and a spiral pipe (414) installed inside the heat insulation cover (6). It also includes a base 2 (7) and multiple rolling mechanisms (8) mounted on the base 2 (7). The rolling mechanism (8) includes a housing (81) with a Y-shaped mounting groove 1 (82) on the housing (81). Three rolls (88) for rolling copper tubes are rotatably mounted inside the mounting groove 1 (82). The rolls (88) are provided with a lubrication structure to reduce friction between the rolls (88) and the copper tube. The housing (81) is also equipped with a cooling water pipe (810) to cool down the rolls (88).

2. The automatic conveying continuous casting and rolling mill for copper tube production according to claim 1, characterized in that: The base (1) is provided with a groove (11), and the bottom of the groove (11) is provided with a drain hole (12) that penetrates the base (1). The inner sidewall of the groove (11) is set as an outwardly expanding inclined surface.

3. The automatic conveying continuous casting and rolling mill for copper tube production according to claim 1, characterized in that: The feeding mechanism (2) includes two symmetrically arranged side plates (21), and two rotating shafts (23) are rotatably installed between the two side plates (21). The outer walls of the two rotating shafts (23) are fitted with drive rollers (24), and the outer walls of the two rotating shafts (23) are also fitted with drive gears (25). The two drive gears (25) mesh, and a motor (22) is fixed on one of the side plates (21). The motor (22) is connected to one of the rotating shafts (23).

4. The automatic conveying continuous casting and rolling mill for copper tube production according to claim 1, characterized in that: The support mechanism (3) includes two symmetrically arranged side plates (31), and a support roller (32) is rotatably installed between the two side plates (31). A V-groove (33) is provided in the middle section of the support roller (32).

5. The automatic conveying continuous casting and rolling mill for copper tube production according to claim 1, characterized in that: The cooling component also includes a support plate (40) connected to the second side plate (31). A water tank (41) for providing water for spray cooling is installed on the support plate (40). A pipe (42) is connected to the outlet of the water tank (41). A pipe (43) is connected to a plurality of the annular water pipes (47). The first pipe (42) is connected to the second pipe (43). A valve (44) is installed on the outer wall of the first pipe (42). A valve (45) is installed on the outer wall of the second pipe (43).

6. The automatic conveying continuous casting and rolling mill for copper tube production according to claim 5, characterized in that: The water collection cover (49) and the filter box (411) are connected by pipe three (410). The filter box (411) is equipped with a filter element. The outlet of the filter box (411) is connected to pipe four (412). The return port of the water tank (41) is connected to pipe five (416). The spiral pipe (414) is connected between pipe four (412) and pipe five (416). The outer wall of the spiral pipe (414) is connected to heat sink (415).

7. The automatic conveying continuous casting and rolling mill for copper tube production according to claim 1, characterized in that: The heat insulation cover (6) has a channel (61) for copper pipes to pass through, and the heat insulation cover (6) has an inner cavity (62) for installing spiral pipes (414).

8. The automatic conveying continuous casting and rolling mill for copper tube production according to claim 1, characterized in that: The included angle between the three rollers (88) is 120 degrees. The rollers (88) are provided with variable diameter grooves (881) for rolling copper tubes into different diameters. The housing (81) is equipped with a drive component for driving the rollers (88) to rotate. The housing (81) is provided with a second mounting groove (83) that communicates with the first mounting groove (82). The drive component includes a second motor (85) installed on the side of the housing (81) and three second rotating shafts (86) rotatably installed inside the second mounting groove (83). The three rollers (88) are respectively sleeved on the outer walls of the three second rotating shafts (86). The output shaft of the second motor (85) is connected to one of the second rotating shafts (86). One of the rotating shafts (86) connected to the output shaft of motor two (85) has helical gear one (87) sleeved on the outer walls of both ends, and two other rotating shafts (86) have helical gear two (89) sleeved on the outer walls of one end, and the helical gear one (87) meshes with the helical gear two (89).

9. An automatic conveying continuous casting and rolling mill for copper tube production according to claim 8, characterized in that: The lubrication structure includes an oil cavity (882) located inside the roll (88) and storing lubricating oil. An oil inlet (884) communicating with the oil cavity (882) is provided on one side of the roll (88), and an oil outlet (883) communicating with the oil cavity (882) is provided on the surface of the variable diameter groove (881).

10. An automatic conveying continuous casting and rolling mill for copper tube production according to claim 1, characterized in that: The outer casing (81) is also provided with an installation hole (84), and the cooling water pipe (810) is installed inside the installation hole (84). The surface of the cooling water pipe (810) is provided with multiple sets of water spray nozzles (811).

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