Heat treatment device for pipeline machining

Abstract

The invention relates to the technical field of pipeline machining, in particular to a heat treatment device for pipeline machining, which comprises a heating furnace, a mounting frame arranged on one side of the output end of the heating furnace, and a cooling box adaptively mounted at the top end of the interior of the mounting frame, and a motor is adaptively mounted at one end of the outer side of the cooling box; an inner plate is arranged on the outer side of the output end of the motor, a circulating cooling machine is arranged at the bottom end of the mounting frame, a flow dividing box is arranged on the outer side of the cooling box, and a connecting frame is arranged on the end face of the top end of the cooling box. The heating furnace and the motor are started, the inner plate is driven by the motor to rotate, and the bent pipe is heated and then conveyed to the cooling box through the chain conveying belt; when the bent pipe falls into the cooling box, the inner plate is located below the cooling box, and the bent pipe is guided to fall into cooling liquid to be cooled; afterwards, the inner plate supports the cooled bent pipe, the bent pipe is guided to the collecting box through the guide plate, the continuous heating and cooling process is achieved, manual intervention is not needed, and operation convenience and equipment practicability are improved.

Description

Technical Field

[0001] The invention relates to the technical field of pipeline processing, in particular to a heat treatment device for pipeline processing. Background Art

[0002] In the process of manufacturing curved pipes, specialized pipe bending machines and other equipment are used to bend straight pipes into specific shapes. In order to enhance the mechanical strength and corrosion resistance of these curved pipes, they usually undergo heat treatment after bending. This process includes two main steps: heating and subsequent cooling. The heating step aims to adjust the crystal structure inside the material, release internal stress, and enhance its plasticity. The cooling step has a crucial influence on the microstructure and final performance of the curved pipe. Cooling methods include natural cooling, air cooling, water cooling and other methods.

[0003] In pipe manufacturing practice, water cooling is one of the common methods for processing pipe bends. Before water cooling, in order to facilitate subsequent operations, the pipe bends are usually pre-placed in a mesh frame or other supporting structure so that they can be moved in the water tank. However, there are some challenges in this practice. For example, the temperature of the heated pipe bend is very high, and special tools or equipment are required to operate it, which complicates the placement process. In addition, impurities may be attached to the pipe bend during the manufacturing process, and these impurities may be further deposited on the surface of the pipe bend during the water cooling process, resulting in additional cleaning work after cooling, which undoubtedly increases the workload. Summary of the invention

[0004] The object of the present invention is to provide a heat treatment device for pipeline processing to solve at least one technical problem existing in the above-mentioned prior art.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a heat treatment device for pipeline processing, comprising a heating furnace, a mounting frame arranged on one side of the output end of the heating furnace, and a cooling box adapted to be installed on the top of the inside of the mounting frame, a motor is adapted to be installed on one end of the outer side of the cooling box, an inner plate is arranged on the outer side of the output end of the motor, a circulating cooler is arranged at the bottom end of the mounting frame, a diverter box is arranged on the outer side of the cooling box, and a connecting frame is arranged on the top end face of the cooling box.

[0006] Preferably, four groups of supporting legs are fixedly connected to the bottom end of the mounting frame, a bottom plate is fixedly connected to the inner sides of the four groups of supporting legs, and the circulating cooler is adapted to be mounted on the top of the bottom plate.

[0007] Preferably, an inclined plate is fixedly connected to one side of the outer top of the cooling box, a guide plate is fixedly connected to the other side of the outer top of the cooling box, two groups of grooves are opened on the inner wall of the cooling box, and bumps are fixedly connected inside the two groups of grooves;

[0008] Wherein, the protrusions in the two groups of grooves are designed to be staggered with each other.

[0009] Preferably, the output end of the motor is fixedly connected to a rotating shaft, the outer side of the rotating shaft is fixedly connected to a sleeve, and one end of the rotating shaft is fixedly connected to an anti-dropping block;

[0010] Wherein, the rotating shaft passes through the cooling box, and the anti-falling block is located outside the cooling box.

[0011] Preferably, a slip ring is slidably connected inside the sleeve, one end of the slip ring is fixedly connected to a spring, and the other end of the spring is fixedly connected to the inner wall of the sleeve.

[0012] Preferably, a square groove is opened on the outer side of the inner plate, a round rod is fixedly connected to one end of the square groove, and round balls are fixedly connected to both sides of the inner plate;

[0013] Wherein, both ends of the round rod are set to be hemispherical, one end of the inner plate is fixedly connected to the slip ring, and the inner plate is slidably connected to the inside of the sleeve.

[0014] Preferably, a connecting pipe is fixedly connected to the top of the circulating cooler, circulating pipes are fixedly connected to both sides of the circulating cooler, the top of the connecting pipe is connected to the cooling box, the circulating pipe is connected to the diversion box, and a protective net is fixedly connected to the inner top of the connecting pipe.

[0015] Preferably, a connecting rod is fixedly connected to the outer side of the diverter box, a hose is fixedly connected to the output end of the diverter box, and a nozzle is fixedly connected to one end of the hose;

[0016] The diverter box is fixedly connected to the outside of the cooling box through the connecting rod, and the spray hole of the spray head is designed to be inclined downward toward the inside of the cooling box.

[0017] Preferably, a connecting shaft is rotatably connected inside the connecting frame, and a pressing plate is fixedly connected outside the connecting shaft;

[0018] Wherein, the connecting shaft is connected to the connecting frame via a torsion spring arranged inside the connecting shaft, and the cooling box does not exceed the bottom end of the pressure plate.

[0019] Preferably, a circular hole is opened on the outer side of the pressing plate, and the nozzle is installed inside the circular hole to limit and fix the nozzle.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. Start the heating furnace and the motor, and use the inner plate driven by the motor to rotate, heat the bent pipe and send it to the cooling box through the chain conveyor belt. When the bent pipe falls into the cooling box, the inner plate is located below it, guiding the bent pipe to fall into the coolant for cooling. Then, the inner plate lifts the cooled bent pipe and guides it to the collection box through the guide plate, realizing a continuous heating and cooling process without manual intervention, which improves the convenience of operation and the practicality of the equipment.

[0022] Second, when the inner plate rotates to the groove of the cooling box, the round rod on the inner plate interacts with the convex block in the groove, pushing the inner plate to slide along the sleeve and squeeze or pull the slip ring, and then the spring resets it when it is misaligned. This reciprocating sliding action increases the movement distance of the inner plate and improves operational stability. The vibration force of the inner plate plays different roles in different positions: before the elbow enters the coolant, the surface impurities are shaken off by vibration and the ball design; in the coolant, it promotes the flushing of impurities on the surface of the elbow; when leaving the coolant, it vibrates again to remove coolant impurities that may be attached, ensuring that the elbow does not require additional cleaning after cooling.

[0023] 3. When the heating furnace and the motor are started, the circulating cooler is also activated. The coolant in the cooling box is extracted and cooled through the connecting pipe, and then transported back to the cooling box through the circulating pipe, the diverter box, the hose and the nozzle. The coolant is kept at a low temperature to effectively cool the elbow. At the same time, the filter cotton filters impurities to ensure the purity of the coolant. When the inner plate lifts the elbow away from the coolant, it removes impurities on the surface of the elbow through vibration and flushing of the nozzle to avoid the need for additional cleaning after cooling. The reciprocating sliding of the inner plate also drives the pressure plate to rotate, causing the nozzle to swing, so as to achieve comprehensive flushing of the elbow and enhance the cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is an overall schematic diagram of the heat treatment device for pipeline processing in the present invention;

[0025] Figure 2 It is a partial overall schematic diagram of the present invention;

[0026] Figure 3 It is an overall schematic diagram of the demoulding component of the present invention;

[0027] Figure 4 Another overall schematic diagram of the demoulding component of the present invention;

[0028] Figure 5 For the present invention Figure 3 A cross-sectional view of

[0029] Figure 6 For the present invention Figure 5 Stereoscopic cross-sectional view of

[0030] Figure 7 It is an overall schematic diagram of the extrusion assembly of the present invention;

[0031] Figure 8 A schematic diagram of a demoulding component of the present invention;

[0032] Fig. 9 is a schematic diagram of the linkage assembly of the present invention;

[0033] Fig.10 Schematic diagram of the linkage assembly of the present invention

[0034] In the figure: a heating furnace 1; a mounting frame 2; a cooling box 3; a motor 4; an inner plate 5; a circulating cooler 6; a diverter box 7; a connecting frame 8; a supporting leg 21; a bottom plate 22; a slanted plate 31; a guide plate 32; a groove 33; a protrusion 34; a rotating shaft 41; a sleeve 42; an anti-slip block 43; a slip ring 421; a spring 422; a square groove 51; a round rod 52; a round ball 53; a connecting pipe 61; a circulating pipe 62; a protective net 63; a connecting rod 71; a hose 72; a nozzle 73; a connecting shaft 81; and a pressing plate 82. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] Embodiment 1;

[0037] See also Figure 1 and Figure 2 The present invention provides a technical solution: a heat treatment device for pipeline processing, comprising a heating furnace 1, a mounting frame 2 arranged at one side of the output end of the heating furnace 1, and a cooling box 3 adapted to be installed at the top of the inner part of the mounting frame 2, a motor 4 adapted to be installed at one end of the outer side of the cooling box 3, an inner plate 5 arranged at the outer side of the output end of the motor 4, a circulating cooler 6 arranged at the bottom end of the mounting frame 2, a diverter box 7 arranged at the outer side of the cooling box 3, and a connecting frame 8 arranged at the top end face of the cooling box 3.

[0038] Furthermore, four groups of supporting legs 21 are fixedly connected to the bottom end of the mounting frame 2 , a bottom plate 22 is fixedly connected to the inner side of the four groups of supporting legs 21 , and the circulating cooler 6 is adapted to be installed on the top of the bottom plate 22 .

[0039] By starting the heating furnace 1 and the motor 4 at the same time, the inner plate 5 arranged on the outer side of the motor 4 is driven to rotate under the operation of the motor 4, the bent pipe can be heated by the heating furnace 1, and the bent pipe after heating can be gradually conveyed to the direction of the cooling box 3 through the chain conveyor belt arranged inside the heating furnace 1. When the bent pipe is about to fall into the interior of the cooling box 3, the rotating inner plate 5 is located under the bent pipe, which causes the fallen bent pipe to be located on the surface of the inner plate 5, and falls into the coolant inside the cooling box 3 with the rotation of the inner plate 5 and the gravity of the bent pipe itself, thereby cooling the bent pipe.

[0040] When the second group of bent pipes are about to fall into the cooling box 3, the rotating inner plate 5 is again located under the second group of bent pipes, thereby supporting the second group of bent pipes, and the second group of bent pipes fall into the coolant inside the cooling box 3 under the rotation of the inner plate 5 and the weight of the second group of bent pipes, thereby cooling the second group of bent pipes. At the same time, the rotating inner plate 5 lifts the first group of bent pipes in the coolant until the bent pipes are located at the guide plate 32. At this time, under the guidance of the guide plate 32 and the weight of the bent pipes, they fall into the collection box placed under the guide plate 32 in advance. Through the repeated operation of the above-mentioned equipment, the heating and cooling of the bent pipes can be achieved, and there is no need for the operator to move the cooled bent pipes with the help of auxiliary tools, which improves the practicality of the equipment to a certain extent.

[0041] In summary, by starting the heating furnace 1 and the motor 4, the inner plate 5 driven by the motor rotates, the bent pipe is heated and then sent to the cooling box 3 through the chain conveyor belt. When the bent pipe falls into the cooling box, the inner plate 5 is located below it, guiding the bent pipe to fall into the coolant for cooling. Subsequently, the inner plate 5 lifts the cooled bent pipe and guides it to the collection box through the guide plate 32, realizing a continuous heating and cooling process without manual intervention, thereby improving the convenience of operation and the practicality of the equipment.

[0042] Embodiment 2 is described in detail based on Embodiment 1. For specific methods, please refer to Figures 1 to 8 ;

[0043] Furthermore, an inclined plate 31 is fixedly connected to one side of the outer top of the cooling box 3, a guide plate 32 is fixedly connected to the other side of the outer top of the cooling box 3, and two groups of grooves 33 are opened on the inner wall of the cooling box 3, and protrusions 34 are fixedly connected inside the two groups of grooves 33;

[0044] The protrusions 34 in the two groups of grooves 33 are designed to be staggered with each other.

[0045] Furthermore, the output end of the motor 4 is fixedly connected to a rotating shaft 41, the outer side of the rotating shaft 41 is fixedly connected to a sleeve 42, and one end of the rotating shaft 41 is fixedly connected to an anti-dropping block 43;

[0046] The rotating shaft 41 passes through the cooling box 3 , and the anti-falling block 43 is located outside the cooling box 3 .

[0047] It should be noted that a slip ring 421 is slidably connected inside the sleeve 42 , one end of the slip ring 421 is fixedly connected to a spring 422 , and the other end of the spring 422 is fixedly connected to the inner wall of the sleeve 42 .

[0048] Furthermore, a square groove 51 is formed on the outer side of the inner plate 5, a round rod 52 is fixedly connected to one end of the square groove 51, and round balls 53 are fixedly connected to both sides of the inner plate 5;

[0049] The two ends of the round rod 52 are set to be hemispherical, one end of the inner plate 5 is fixedly connected to the slip ring 421, and the inner plate 5 is slidably connected inside the sleeve 42.

[0050] When the inner plate 5 rotates into the groove 33 formed on the inner wall of the cooling box 3, the protrusion 34 inside the groove 33 and the round rod 52 at one end of the inner plate 5 will squeeze each other, causing the inner plate 5 to slide along the inside of the sleeve 42 while squeezing or pulling the slip ring 421. When the round rod 52 is misaligned with the protrusion 34, the inner plate 5 is reset by the spring 422 inside the sleeve 42.

[0051] Therefore, when the inner plate 5 rotates inside the cooling box 3, it will drive the inner plate 5 to slide back and forth. At the same time, due to the staggered arrangement of the protrusions 34 inside the two sets of grooves 33, the inner plate 5 will slide back and forth in both directions, thereby increasing the overall reciprocating sliding distance while ensuring the stability of the overall operation.

[0052] The reciprocating sliding of the inner plate 5 will cause the inner plate 5 to generate a vibration force. When the inner plate 5 is located at different positions, the effect driven by the vibration force is also different.

[0053] When the inner plate 5 lifts the bent pipe and enters the coolant, the bent pipe has just been heated and impurities will adhere to its surface. The vibration of the inner plate 5 and the design of the ball 53 will drive the bent pipe to shake, so as to shake off the impurities attached to the surface of the bent pipe, thereby preventing the impurities from adhering to the surface of the bent pipe during the cooling process.

[0054] When the inner plate 5 lifts the bent pipe and enters the coolant, the inner plate 5 vibrates and the ball 53 is designed to drive the bent pipe to shake inside the coolant, which can effectively cooperate with the coolant to flush the surface of the bent pipe and shake off stubborn impurities.

[0055] When the inner plate 5 lifts the bent pipe and leaves it from the coolant, the vibration of the inner plate 5 and the design of the ball 53 will cause the bent pipe to shake. When the bent pipe is cooled in the coolant, impurities in the coolant may adhere to the outside of the bent pipe, and the impurities can be removed by shaking, ensuring that the bent pipe does not need to be cleaned again after cooling.

[0056] In summary, when the inner plate 5 rotates to the groove 33 of the cooling box 3, the round rod 52 on the inner plate 5 interacts with the protrusion 34 in the groove 33, pushing the inner plate 5 to slide along the sleeve 42 and squeeze or pull the slip ring 421, and then reset by the spring 422 when it is misaligned. This reciprocating sliding action increases the movement distance of the inner plate 5 and improves the operational stability. The vibration force of the inner plate 5 plays different roles in different positions: before the elbow enters the coolant, the surface impurities are shaken off by vibration and the design of the ball 53; in the coolant, it promotes the flushing of impurities on the surface of the elbow; when leaving the coolant, it vibrates again to remove coolant impurities that may be attached, ensuring that the elbow does not require additional cleaning after cooling.

[0057] Embodiment 3 is further described in detail based on the above embodiment 2. Figures 1 to 10 , the specific method is as follows:

[0058] Furthermore, a connecting pipe 61 is fixedly connected to the top of the circulating cooler 6, and circulating pipes 62 are fixedly connected to both sides of the circulating cooler 6. The top of the connecting pipe 61 is connected to the cooling box 3, and the circulating pipe 62 is connected to the diversion box 7. The inner top of the connecting pipe 61 is fixedly connected to a protective net 63.

[0059] Furthermore, a connecting rod 71 is fixedly connected to the outer side of the diverter box 7, a hose 72 is fixedly connected to the output end of the diverter box 7, and a nozzle 73 is fixedly connected to one end of the hose 72;

[0060] The diverter box 7 is fixedly connected to the outside of the cooling box 3 via a connecting rod 71 , and the spray hole of the spray head 73 is designed to be inclined downward toward the inside of the cooling box 3 .

[0061] Furthermore, a connecting shaft 81 is rotatably connected to the interior of the connecting frame 8, and a pressing plate 82 is fixedly connected to the outer side of the connecting shaft 81;

[0062] The connecting shaft 81 is connected to the connecting frame 8 via a torsion spring disposed inside the connecting shaft 81 , and the cooling box 3 does not exceed the bottom end of the pressing plate 82 .

[0063] Furthermore, a circular hole is opened on the outer side of the pressing plate 82, and the nozzle 73 is installed inside the circular hole to limit and fix the nozzle 73.

[0064] When the heating furnace 1 and the motor 4 are started, the circulating cooler 6 is started. The circulating cooler 6 draws the coolant in the cooling box 3 into the circulating cooler 6 through the connecting pipe 61 for cooling, and then transports it to the inside of the cooling box 3 through the circulating pipe 62, the diverter box 7, the hose 72 and the nozzle 73, ensuring that the coolant always maintains a low temperature, so that the bent pipe can be effectively cooled. At the same time, the filter cotton arranged inside the circulating cooler 6 can filter impurities in the coolant to ensure the overall purity of the coolant.

[0065] When the inner plate 5 lifts the bent pipe out of the coolant, not only can the coolant impurities that may be attached to the surface of the bent pipe be removed by vibration, but the coolant flushed by the nozzle 73 can further remove the coolant impurities that may be attached to the surface of the bent pipe, ensuring that the bent pipe does not require additional cleaning after cooling.

[0066] At the same time, when the inner plate 5 slides back and forth to both sides in turn, it will also squeeze the pressure plate 82, causing the pressure plate 82 to rotate around the connecting shaft 81, thereby driving the nozzle 73 installed on the inner side of the pressure plate 82 to swing, and the torsion spring inside the connecting shaft 81 will drive the pressure plate 82 to reset, so that the reciprocating swing of the nozzle 73 can be realized. The reciprocating swinging nozzle 73 can be used to fully flush the bent pipe, further improving the cleaning effect of the bent pipe.

[0067] In summary, when the heating furnace 1 and the motor 4 are started, the circulating cooler 6 is also activated, and the coolant in the cooling box 3 is extracted and cooled through the connecting pipe 61, and then transported back to the cooling box 3 through the circulating pipe 62, the diverter box 7, the hose 72 and the nozzle 73, so as to keep the coolant low in temperature to effectively cool the elbow, and at the same time, the filter cotton filters impurities to ensure the purity of the coolant. When the inner plate 5 lifts the elbow to leave the coolant, it removes impurities on the surface of the elbow through vibration and flushing of the nozzle 73, avoiding the need for additional cleaning after cooling. The reciprocating sliding of the inner plate 5 also drives the pressure plate 82 to rotate, causing the nozzle 73 to swing, so as to achieve comprehensive flushing of the elbow and enhance the cleaning effect.

[0068] Example 4: Based on the above example, the overall steps are described in detail. Figures 1 to 10 , the specific method is as follows:

[0069] When the heating furnace 1 and the motor 4 are started at the same time, the operation of the motor 4 will drive the inner plate 5 to rotate, so that the heated bent pipe can be sent to the cooling box 3 through the chain conveyor belt. When the bent pipe falls into the cooling box 3, the inner plate 5 is located below it to help guide the bent pipe into the coolant for cooling. After cooling, the inner plate 5 will lift the bent pipe and send it to the collection box through the guide plate 32. The entire heating and cooling process is continuous and does not require manual operation, thereby improving the practicality and ease of operation of the equipment.

[0070] When the inner plate 5 rotates in the cooling box 3, it interacts with the protrusion 34 in the groove 33, so that the round rod 52 pushes the inner plate 5 to slide along the sleeve 42, squeezes or pulls the slip ring 421, and is reset by the spring 422 after being misaligned. Such reciprocating sliding not only increases the movement range of the inner plate 5, but also improves the stability of operation. The vibration force generated by the inner plate 5 at different positions helps to shake off impurities on the surface of the bent pipe before it enters the coolant, and further cleans the bent pipe in the coolant and when it leaves the coolant, ensuring that the bent pipe does not need to be cleaned again after cooling.

[0071] At the same time, the circulating cooler 6 extracts and cools the coolant in the cooling box 3 through the connecting pipe 61, and then transports the coolant back to the cooling box 3 through the circulating pipe 62, the diverter box 7, the hose 72 and the nozzle 73 to keep the coolant at a low temperature, effectively cool the elbow, and filter out impurities in the coolant through the filter cotton to ensure the cleanliness of the coolant. When the inner plate 5 lifts the elbow to leave the coolant, the flushing of the nozzle 73 and the vibration of the inner plate 5 work together to remove impurities on the surface of the elbow. In addition, the reciprocating sliding of the inner plate 5 will also drive the pressure plate 82 to rotate, causing the nozzle 73 to swing, achieving comprehensive flushing of the elbow and improving the cleaning effect.

[0072] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A heat treatment device for pipeline processing, characterized in that: The invention comprises a heating furnace (1), a mounting frame (2) arranged at one side of the output end of the heating furnace (1), and a cooling box (3) adapted to be mounted on the top of the interior of the mounting frame (2); a motor (4) is adapted to be mounted on one end of the outer side of the cooling box (3); an inner plate (5) is arranged on the outer side of the output end of the motor (4); a circulating cooler (6) is arranged at the bottom end of the mounting frame (2); a shunt box (7) is arranged on the outer side of the cooling box (3); and a connecting frame (8) is arranged on the top end face of the cooling box (3).

2. The heat treatment device for pipe processing according to claim 1, characterized in that: Four groups of supporting legs (21) are fixedly connected to the bottom end of the mounting frame (2), a bottom plate (22) is fixedly connected to the inner sides of the four groups of supporting legs (21), and the circulating cooler (6) is adapted to be mounted on the top end of the bottom plate (22).

3. The heat treatment device for pipe processing according to claim 2, characterized in that: A sloping plate (31) is fixedly connected to one side of the outer top of the cooling box (3), a guide plate (32) is fixedly connected to the other side of the outer top of the cooling box (3), two groups of grooves (33) are formed on the inner wall of the cooling box (3), and protrusions (34) are fixedly connected inside the two groups of grooves (33); The protrusions (34) inside the two groups of grooves (33) are designed to be staggered with each other.

4. The heat treatment device for pipe processing according to claim 3, characterized in that: The output end of the motor (4) is fixedly connected to a rotating shaft (41), the outer side of the rotating shaft (41) is fixedly connected to a sleeve (42), and one end of the rotating shaft (41) is fixedly connected to an anti-dropping block (43); The rotating shaft (41) passes through the cooling box (3), and the anti-falling block (43) is located outside the cooling box (3).

5. The heat treatment device for pipe processing according to claim 4, characterized in that: A slip ring (421) is slidably connected inside the sleeve (42), one end of the slip ring (421) is fixedly connected to a spring (422), and the other end of the spring (422) is fixedly connected to the inner wall of the sleeve (42).

6. The heat treatment device for pipe processing according to claim 5, characterized in that: A square groove (51) is provided on the outer side of the inner plate (5), a round rod (52) is fixedly connected to one end of the square groove (51), and round balls (53) are fixedly connected to both sides of the inner plate (5); Wherein, both ends of the round rod (52) are configured to be hemispherical, one end of the inner plate (5) is fixedly connected to the slip ring (421), and the inner plate (5) is slidably connected to the inside of the sleeve (42).

7. The heat treatment device for pipe processing according to claim 6, characterized in that: The top of the circulating cooler (6) is fixedly connected to a connecting pipe (61), and both sides of the circulating cooler (6) are fixedly connected to circulating pipes (62). The top of the connecting pipe (61) is connected to the cooling box (3), and the circulating pipe (62) is connected to the diverter box (7). The top of the inside of the connecting pipe (61) is fixedly connected to a protective net (63).

8. The heat treatment device for pipe processing according to claim 7, characterized in that: The outer side of the diverter box (7) is fixedly connected to a connecting rod (71), the output end of the diverter box (7) is fixedly connected to a hose (72), and one end of the hose (72) is fixedly connected to a nozzle (73); The diverter box (7) is fixedly connected to the outside of the cooling box (3) via the connecting rod (71), and the spray hole of the spray head (73) is designed to be inclined downward toward the inside of the cooling box (3).

9. The heat treatment device for pipe processing according to claim 8, characterized in that: The connecting frame (8) is rotatably connected to a connecting shaft (81) inside, and a pressing plate (82) is fixedly connected to the outside of the connecting shaft (81); The connecting shaft (81) is connected to the connecting frame (8) via a torsion spring arranged inside the connecting shaft (81), and the cooling box (3) does not exceed the bottom end of the pressing plate (82).

10. The heat treatment device for pipe processing according to claim 9, characterized in that: A circular hole is provided on the outer side of the pressing plate (82), and the nozzle (73) is installed inside the circular hole to limit and fix the nozzle (73).

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