Stainless steel pipe and cold rolling oil removal process thereof

Abstract

This invention discloses a stainless steel pipe and its cold rolling degreasing process, aiming to provide a stainless steel pipe with a structure that enhances its bending resistance and its cold rolling degreasing process. It includes a steel pipe body, which comprises an outer wall and an inner wall. The outer wall is fitted over the inner wall, and the inner wall is polygonal in shape. The outer wall has grooves, the ends of which correspond to the ends of the outer wall. The beneficial effects of this invention are: it achieves the purpose of setting a structure that enhances bending resistance; it provides a stable and limiting effect on the steel pipe; it facilitates simultaneous cold rolling degreasing of both the inner and outer walls of the stainless steel pipe; and it includes a component that automatically initiates the degreasing process.

Description

Technical Field

[0001] This invention relates to the field of steel pipe tools, and in particular to a stainless steel pipe and its cold rolling degreasing process. Background Technology

[0002] Steel pipes are used for transporting fluids and powdery solids, exchanging heat energy, manufacturing mechanical parts and containers, and are also an economical steel material. The development of steel pipe production technology began with the rise of the bicycle manufacturing industry, the development of oil in the early 19th century, the manufacture of ships, boilers, and aircraft during the two World Wars, the manufacture of thermal power boilers after World War II, the development of the chemical industry, and the drilling and transportation of oil and natural gas, all of which have powerfully promoted the development of the steel pipe industry in terms of variety, output, and quality. Stainless steel pipes are one type of steel pipe, made of stainless steel materials, and are widely used in industrial pipelines for petroleum, chemical, medical, food, light industry, and machinery, as well as in mechanical structural components. However, ordinary stainless steel pipes lack a bending-resistant structure within their body, making them prone to bending deformation under external pressure, thus affecting their normal use. With the advancement of the Industrial Revolution, the use of stainless steel pipes increased significantly, and the manufacturing process of stainless steel pipes has also been continuously updated with the times. Among these processes, the cold rolling degreasing process plays an important role in lubrication and cleaning, which is extremely important for the use of the manufactured steel pipes.

[0003] Chinese Patent Publication No. CN213530195U, published on June 25, 2021, discloses a cold-rolled degreasing device for stainless steel pipes, comprising a first movable seat and a second movable seat; an extended support plate is fixedly connected to the bottom of one side of the outer surface of both the first and second movable seats, and a buffer pad is fixedly connected to the top and bottom of one side of the outer surface of the two extended support plates; a first mounting hole is opened on the top of the outer surface of the first movable seat, and a rotating rod is rotatably connected inside the first mounting hole; multiple springs are fixedly connected to the four sides of the outer surface of the rotating rod, and a fixing plate is fixedly connected to the top surface of each of the multiple springs; the fixing plate... There are four fixed plates, each with a first oil-absorbing layer fixedly connected to its outer surface. A steel pipe is clamped to the outer surface of each first oil-absorbing layer. A first motor is fixedly connected to the side of the first movable seat away from the outer surface of the rotating rod, and the output end of the first motor is fixedly connected to the rotating rod. A second mounting hole is opened at the top of the outer surface of the second movable seat, and a rotating cylinder is rotatably connected inside the second mounting hole. A second oil-absorbing layer is fixedly connected to the inner wall of the rotating cylinder, and the inner wall of the second oil-absorbing layer is in contact with the outer surface of the steel pipe. A second motor is fixedly connected to the top of the side of the second movable seat away from the outer surface of the rotating cylinder, and the output end of the second motor is fixedly connected to the rotating cylinder. The drawback of this technical solution is that during cold rolling degreasing, due to the low hardness of the stainless steel pipe, and the fact that the cold rolling degreasing machine uses the first and second oil-absorbing layers to squeeze and rub the inside and outside of the steel pipe, the steel pipe is prone to deformation after long-term stress.

[0004] In summary, a structure that enhances bending resistance can be designed to allow the stainless steel pipe to withstand the effects of extrusion pressure over a long period of time when subjected to compression and friction, thereby reducing the probability of deformation. Summary of the Invention

[0005] The present invention aims to overcome the shortcomings of existing technologies in which steel pipes deform under long-term pressure, and provides a stainless steel pipe with a structure that enhances its bending resistance and its cold rolling degreasing process.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] The device includes a steel pipe body, which includes an outer wall and an inner wall. The outer wall is fitted over the inner wall. The inner wall is polygonal in shape. The outer wall has a groove, and the positions of the two ends of the groove correspond to the positions of the two ends of the outer wall.

[0008] This design uses an inner wall fitted inside an outer wall to form a steel pipe structure. The inner wall has a polygonal shape, which enhances the bending resistance of the steel pipe. Under pressure and friction, the inner wall can withstand heavy loads for extended periods without easily deforming, thus achieving the purpose of a structure that enhances bending resistance. The outer wall has grooves, with the ends of the grooves corresponding to the ends of the outer wall. When the oil-absorbing layer rubs against the outer wall to remove oil, it moves to the groove, preventing contact with the outer wall and indicating that the oil-absorbing layer has detached.

[0009] This invention also provides a cold rolling degreasing process for stainless steel pipes, specifically including the following steps:

[0010] Step 1: Place the stainless steel tube that needs to be cold-rolled and degreased into the rotating cylinder on the moving seat 1, so that the front end of the stainless steel tube is inserted into the limiting cavity of the connecting block. Rotate the stainless steel tube until it is blocked by the stop block in the limiting cavity and cannot be rotated further.

[0011] Step 2: Control the second movable seat to move in the direction of the first movable seat. When moving the second movable seat, the rotating rod on the second movable seat needs to be inserted into the stainless steel tube until the rear end of the stainless steel tube is inserted into the stainless steel tube groove.

[0012] Step 3: When the movement of the second movable base is completed, the socket installed on the second movable base is inserted into the electrical connection slot on the first movable base, and the plug installed in the electrical connection slot is electrically connected to the socket, thus starting the operation of the first motor and the second motor.

[0013] Step 4: When motor 1 is working, it drives motor shaft 1 to rotate, and the stainless steel tube connected by the connecting block is also driven to rotate. The outer wall of the stainless steel tube is degreased by the brushing effect of oil-absorbing layer 1 installed inside the rotating cylinder. Meanwhile, when motor 2 is working, it drives motor shaft 2 to rotate, and oil-absorbing layer 2 on the rotating rod connected to motor shaft 2 can degrease the inner wall of the stainless steel tube.

[0014] This design allows a stainless steel tube to be fitted onto the rotating cylinder on the first movable seat. The front end of the stainless steel tube is inserted into the limiting cavity of the connecting block. The stop block in the limiting cavity limits the front end of the stainless steel tube. Then, the movement of the second movable seat is controlled, allowing the rotating rod on the second movable seat to be inserted into the stainless steel tube. At the same time, the rear end of the stainless steel tube is inserted into the electrical connection groove on the first movable seat. In this way, the front and rear ends of the stainless steel tube are stably limited. Then, the operation of the first motor and the second motor shaft can be controlled. The rotating cylinder connected to the first motor degreases the outer wall of the stainless steel tube, while the rotating rod connected to the second motor shaft degreases the inner wall of the stainless steel tube. The cold rolling degreasing process of the stainless steel tube can then be carried out smoothly.

[0015] A cold-rolled degreasing device for stainless steel pipes includes a first movable base, a second movable base, and a stainless steel pipe. A rotating cylinder is mounted on the first movable base and is detachably connected to it. A rotating rod is mounted on the second movable base and is detachably connected to it. The diameter of the stainless steel pipe is positioned between the rotating rod and the rotating cylinder. The rotating cylinder has a limiting groove, and a brush tube is mounted at the limiting groove. The brush tube is detachably connected to the rotating cylinder through the limiting groove. Brush holes are provided in the limiting groove and communicate with it. An oil-absorbing layer is mounted on the brush tube. The brush hole is located outside the limiting groove. A microcontroller and a speaker are installed on the rotating cylinder. A touch switch is installed on the first oil-absorbing layer. The touch switch is electrically connected to the microcontroller. The microcontroller is electrically connected to the speaker. The first movable seat is provided with a limiting cavity and a plug interface. The limiting cavity and the plug interface are connected. A limiting block is installed at the front end of the stainless steel tube. The limiting cavity and the plug interface are matched with the limiting block. The stainless steel tube is detachably connected to the first movable seat through the cooperation of the limiting cavity, the plug interface and the limiting block. A second oil-absorbing layer is fitted on the rotating rod. The rear end of the stainless steel tube is detachably connected to the second movable seat.

[0016] This design allows a rotating cylinder to be mounted on a movable base. The rotating cylinder has a limiting groove, into which the brush tube can be inserted. The oil-absorbing layer on the brush tube passes through the brush hole in the limiting groove and extends outside. This allows the stainless steel tube requiring cold-rolled degreasing to be fitted into the rotating cylinder, with the outer wall of the stainless steel tube in contact with the oil-absorbing layer. When inserting the stainless steel tube, the front end of the tube is inserted through the insertion interface into the limiting cavity on the movable base. This limiting cavity not only communicates with the insertion interface, but both the limiting cavity and the insertion interface are connected to the front end of the stainless steel tube. The matching limit blocks allow the stainless steel tube's front end, with the limit block inserted into the limiting cavity, to rotate until it can no longer rotate. This completes the front-end limiting of the stainless steel tube. Then, the second moving seat moves towards the first moving seat, inserting the rotating rod on the second moving seat into the stainless steel tube until the rear end of the tube is limited by the second moving seat. This completes the front and rear limiting of the stainless steel tube, stably limiting it on the cold rolling degreasing equipment. This structure provides stable limiting for the steel tube. Here, the rotating cylinder and the first moving seat are detachably connected, while the rotating rod is detachably connected to the second moving seat. This allows control of the rotation of both the rotating cylinder and the rotating rod. The oil-absorbing layer on the rotating cylinder applies oil to the outer wall of the stainless steel tube, while the second oil-absorbing layer on the rotating rod applies oil to the inner wall, successfully performing the cold rolling degreasing process. When the oil-absorbing layer 1 is brushed on the outer wall, it will brush into the groove on the outer wall. This causes the touch switch on the oil-absorbing layer 1 to sink into the groove, thus removing the touch switch from the outer wall. The touch switch can then transmit this information to the microcontroller. After processing, the microcontroller transmits the information to the speaker, which emits an audible alert. This audible alert is repeated continuously to indicate that the oil-absorbing layer 1 is being brushed.

[0017] Preferably, the first movable base is provided with a connecting groove, in which a connecting block is installed. The first movable base is equipped with a motor and a plug, which are electrically connected. A motor shaft is mounted on the first motor and connected to the front end of the connecting block. A limiting cavity is located within the connecting block, and a plug-in interface is located at the rear end of the connecting block. The steel pipe body is connected to the first motor via the connecting block. The second movable base is equipped with a socket and a power supply, which are electrically connected. The plug is compatible with the socket. This design allows the connecting block to be installed through the connecting groove on the first movable base, enabling the motor shaft to pass through the connecting groove and connect to the front end of the connecting block. Since the limiting cavity is located within the connecting block, and the plug-in interface is located at the rear end of the connecting block, the first connecting ring can be smoothly inserted into the limiting cavity after passing through the plug-in interface. This also ensures the connection between the first connecting ring and the connecting block, allowing the stainless steel pipe to rotate under the rotation of the first motor shaft. Furthermore, the first movable base is equipped with a plug, while the second movable base is equipped with a socket and power supply. When the second movable base moves towards the first movable base, it can not only stabilize and limit the stainless steel tube, but also make the plug and socket electrically connected. This allows the motor connected to the plug to start the rotation of the stainless steel tube in a timely manner, and the cold rolling and degreasing process can then begin smoothly.

[0018] Preferably, a support block is installed on the movable base one, and the support block one has an electrical connection groove. The plug is placed in the electrical connection groove, and the motor one and the rotating cylinder are respectively placed at the front and rear ends of the movable base one. The distance between the plug and the rear end of the movable base one is equal to the distance between the two ends of the rotating cylinder. This design, with the support block one installed on the movable base one, provides a supporting effect for the movable base one, allowing the movable base one to be placed stably on the flat surface. The plug is installed in the electrical connection groove on the support block one, so that when the movable base two moves towards the movable base one, the electrical connection between the plug and the socket is established. Here, the distance between the plug and the rear end of the movable base one is equal to the distance between the two ends of the rotating cylinder. This ensures that after the movable base one and movable base two have completed the limiting function of the stainless steel tube, not only is the electrical connection between the plug and the socket established, but also the stable limiting of the two ends of the stainless steel tube is achieved, which is simple and practical.

[0019] Preferably, a second motor is mounted on the second movable base, and the second motor is electrically connected to a socket. A second motor shaft is mounted on the second motor, and the second movable base has a connecting hole in which the second motor shaft is placed. The rotating rod is connected to the second motor shaft. This design allows the second motor to be started and operated promptly when the socket on the second movable base is electrically connected to the plug on the first movable base. This drives the second motor shaft to rotate, as it passes through the connecting hole on the second movable base and connects to the rotating rod. The rotating rod is then driven by the second motor shaft to rotate, thus degreasing the inner wall of the stainless steel tube.

[0020] Preferably, the movable seat 2 is provided with a stainless steel tube groove, which fits outside the connecting hole. A connecting ring 2 is installed at the rear end of the steel pipe body, and the connecting ring 2 matches the stainless steel tube groove. This design allows the connecting ring 2 at the rear end of the stainless steel pipe to be inserted through the stainless steel tube groove on the movable seat 2, ensuring a stable limiting effect on the rear end of the stainless steel pipe. Since the stainless steel tube groove fits outside the connecting hole, after the connecting ring 2 is connected to the movable seat 2, the rotating rod on the movable seat 2 can be smoothly inserted into the stainless steel pipe, facilitating the oil-absorbing layer 2 on the rotating rod to remove oil from the inner wall of the stainless steel pipe.

[0021] Preferably, a support block two is installed on the movable base two, and both the socket and the power supply are placed on the support block two, with the socket and the plug positioned corresponding to each other. This design allows the support block two to provide support for the movable base two, ensuring it can be placed stably on a flat surface. Since the socket and power supply are installed on the support block two, and the socket and plug are positioned accordingly, when the movable base two moves towards the movable base one, the plug on the support block one can be smoothly inserted into the socket on the support block two. This allows motors one and two to start simultaneously, driving the rotating cylinder and rotating rod to perform brushing and degreasing work on the inner and outer walls of the stainless steel pipe.

[0022] Preferably, several rollers are installed at the bottom ends of both the first movable seat and the first support block. Both the first movable seat and the first support block are detachably connected to the rollers. The rotating cylinder is positioned between the top of the first movable seat and the first support block. Similarly, several rollers are installed at the bottom ends of both the second movable seat and the second support block. Both the second movable seat and the second support block are detachably connected to the rollers. The rotating rod is positioned between the top of the second movable seat and the second support block. This design, with several rollers installed at the bottom ends of both the first movable seat and the first support block, allows the first movable seat to move under the rolling effect of the rollers, reducing friction during movement. Likewise, with several rollers installed at the bottom ends of both the second movable seat and the second support block, the second movable seat moves under the rolling effect of the rollers, reducing friction during movement.

[0023] Preferably, roller shafts are installed at the bottom ends of both the first movable seat and the first support block, and both are connected to the roller shafts. Several rollers are evenly distributed on the roller shafts. Similarly, roller shafts are installed at the bottom ends of both the second movable seat and the second support block, and both are connected to the roller shafts. Several rollers are evenly distributed on the roller shafts. This design allows several rollers to be connected to the roller shafts at the bottom ends of the first movable seat and the first support block, enabling them to roll under the support of the roller shafts. Likewise, several rollers can be connected to the roller shafts at the bottom ends of the second movable seat and the second support block, allowing them to roll under the support of the roller shafts.

[0024] The beneficial effects of this invention are: it can achieve the purpose of setting a structure that enhances the bending resistance; it can play a role in stabilizing and limiting the position of the steel pipe; it facilitates the simultaneous cold rolling and degreasing of the inner and outer walls of the stainless steel pipe; and it is equipped with a component that automatically starts the degreasing process. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the steel pipe body of the present invention;

[0026] Figure 2 This is a schematic diagram of the connection of the steel pipe body of the present invention;

[0027] Figure 3 yes Figure 2 A structural schematic diagram of the cross-section at point AA;

[0028] Figure 4 This is a schematic diagram of the cold rolling degreasing device of the present invention;

[0029] Figure 5 This is a schematic diagram of the structure of the movable base of the present invention;

[0030] Figure 6 yes Figure 5 A structural schematic diagram of the cross-section at point B in the diagram;

[0031] Figure 7 yes Figure 6 A schematic diagram of the cross-section at point C in the diagram;

[0032] Figure 8 This is a schematic diagram of the limiting cavity of the present invention;

[0033] Figure 9 yes Figure 5 A schematic diagram of direction D in the diagram;

[0034] Figure 10This is a schematic diagram of the structure of the movable base 2 of the present invention;

[0035] Figure 11 yes Figure 10 A structural schematic diagram of the cross-section at point E in the diagram;

[0036] Figure 12 yes Figure 10 A schematic diagram of direction F in the diagram.

[0037] In the diagram: 1. Movable base one, 2. Movable base two, 3. Rotating cylinder, 4. Rotating rod, 5. Motor one, 6. Motor two, 7. Support block one, 8. Support block two, 9. Roller one, 10. Roller two, 11. Electrical connection groove, 12. Plug, 13. Power supply, 14. Socket, 15. Limiting groove, 16. Brush tube, 17. Oil absorption layer one, 18. Connecting groove, 19. Connecting block, 20. Motor shaft one, 21. Outer wall, 22. Connecting hole, 23. Motor shaft two, 24. Stainless steel tube groove, 25. Oil absorption layer two, 26. Limiting cavity, 27. Insertion interface, 28. Limiting block, 29. Stop block, 30. Roller shaft one, 31. Roller shaft two, 32. Connecting ring one, 33. Connecting ring two, 34. Inner wall, 35. Groove, 36. Microcontroller, 37. Speaker. Detailed Implementation

[0038] The invention will now be further described with reference to the accompanying drawings and specific embodiments.

[0039] like Figure 1 , Figure 2 and Figure 3 In the embodiment shown, a stainless steel pipe includes a pipe body, which includes an outer wall 21 and an inner wall 34. The outer wall 21 is fitted over the inner wall 34. The inner wall 34 is polygonal in shape. The outer wall 21 is provided with a groove 35, and the positions of the two ends of the groove 35 correspond to the positions of the two ends of the outer wall 21.

[0040] This invention also provides a cold rolling degreasing process for stainless steel pipes, specifically including the following steps:

[0041] Step 1: Place the steel pipe body that needs to be cold rolled and degreased into the rotating cylinder 3 on the moving seat 1, so that the front end of the steel pipe body is inserted into the limiting cavity 26 of the connecting block 19, and rotate the steel pipe body until it is blocked by the stop block 29 in the limiting cavity 26 and cannot be rotated further.

[0042] Specifically: First, place the movable base 1 and movable base 2 on a flat surface, with the rotating cylinder 3 mounted on movable base 1 and the rotating rod 4 mounted on movable base 2 facing each other. Then, insert the connecting ring 32, which is mounted on the front end of the stainless steel pipe body to be cold-rolled and degreased, into the rotating cylinder 3 on movable base 1, allowing the connecting ring 32 to fit inside the rotating cylinder 3. During the fitting of the steel pipe body, the outer wall 21 of the steel pipe body is inside the rotating cylinder 3, until the connecting ring 32 reaches the connecting block 19 mounted in the connecting groove 18 of movable base 1. Here, the motor 5 mounted on movable base 1 is connected to the front end of the connecting block 19 through the motor shaft 20, and the rear end of the connecting block 19 is provided with a plug. Interface 27 is connected to the limiting cavity 26 in the connecting block 19. The connecting ring 32 can be inserted into the limiting cavity 26 through the interface 27. In addition, two limiting blocks 28 are installed on the connecting ring 32, which are respectively placed at the upper and lower ends of the connecting ring 32. Two stops 29 are installed in the limiting cavity 26, which are symmetrically distributed with the center of the limiting cavity 26 as the base point. When the connecting ring 32 is inserted, the two limiting blocks 28 are inserted, so the steel pipe can be rotated until the two stops 29 block the two limiting blocks 28. This is to limit the front end of the steel pipe and reduce the probability of the steel pipe coming off the connecting block 19 from the interface 27. Here, the rotating cylinder 3 is provided with a limiting groove 15, and a brush tube 16 can be inserted into the limiting groove 15, so that the oil-absorbing layer 17 on the brush tube 16 passes through the brush hole and is placed outside the limiting groove 15. When the connecting ring 32 is fitted into the rotating cylinder 3, the outer wall 21 comes into contact with the oil-absorbing layer 17.

[0043] Step 2: Control the moving seat 2 to move towards the moving seat 1. When moving the moving seat 2, the rotating rod 4 on the moving seat 2 needs to be inserted into the steel pipe body until the rear end of the steel pipe body is inserted into the stainless steel pipe groove 24.

[0044] Specifically, the movable seat 2 can be controlled to move towards the movable seat 1. Roller shafts 30 are installed at the bottom of the movable seat 1 and the bottom of the support block 7. Several rollers 9 are evenly distributed on the roller shafts 30. Roller shafts 31 are installed at the bottom of the movable seat 2 and the bottom of the support block 8. Several rollers 10 are evenly distributed on the roller shafts 31. In this way, the movement of the movable seat 2 can be controlled by the rolling effect of the rollers 10, which reduces the friction when the movable seat 2 moves. However, the movable seat 1 must be limited first to prevent the movable seat 1 from being impacted and moving when the movable seat 2 moves to touch the movable seat 1. In this way, the connection between the movable seat 1 and the movable seat 2 cannot be performed. The limiting effect can also prevent the front end of the movable seat 1 from being blocked by a vertical plane. This allows the rotating rod 4 on the movable seat 2 to be inserted into the inner wall 34 of the stainless steel pipe, meaning the oil-absorbing layer 25 on the rotating rod 4 contacts the inner wall 34. Meanwhile, the connecting ring 33 at the rear end of the pipe is inserted into the stainless steel groove 24 on the movable seat 2, thus connecting the rear end of the pipe to the movable seat 2. This stably limits the movement of both ends of the pipe, facilitating the cold rolling degreasing process. The stainless steel groove 24 fits within the connecting hole 22, and the motor shaft 23 on the motor 6 passes through the connecting hole 22 and connects to the rotating rod 4. This ensures that when the rotating rod 4 is inserted into the inner wall 34, the oil-absorbing layer 25 can smoothly contact the inner wall 34.

[0045] Step 3: When the movement of the second movable base 2 is completed, the socket 14 installed on the second movable base 2 is inserted into the electrical connection slot 11 on the first movable base 1, and the plug 12 installed in the electrical connection slot 11 is electrically connected to the socket 14, and at the same time, the operation of the first motor 5 and the second motor 6 is started.

[0046] Specifically, when the movable base 2 is moved, the socket 14 installed on the movable base 2 also moves towards the support block 7 along with the movement of the support block 28. This allows the socket 14 and the power supply 13 connected to it to be smoothly inserted into the electrical connection slot 11 on the support block 7, thus completing the electrical connection between the plug 12 and the socket 14 in the electrical connection slot 11. The motor 5 on the movable base 11 is electrically connected to the plug 12, and the motor 6 on the movable base 2 is electrically connected to the socket 14, thus starting the operation of the motor 5 and the motor 6.

[0047] Step 4: When motor 5 is working, it drives motor shaft 20 to rotate. The steel pipe body connected by connecting block 19 is also driven to rotate. The outer wall 21 of the steel pipe body is degreased by the brushing effect of oil-absorbing layer 17 installed inside the rotating cylinder 3. Meanwhile, motor 6 drives motor shaft 23 to rotate. The oil-absorbing layer 25 on the rotating rod 4 connected to motor shaft 23 can degrease the inner wall 34 of the stainless steel pipe.

[0048] Specifically, the operation of motors 5 and 6 is to rotate motor shafts 20 and 23, which allows oil-absorbing layer 17 to perform cold rolling degreasing on the outer wall 21, and oil-absorbing layer 25 to perform cold rolling degreasing on the inner wall 34. Here, the rotation directions of motor shafts 20 and 23 can be set to opposite directions to enhance the degreasing effect on the outer wall 21 and inner wall 34 of the steel pipe. During the rotation of motor shaft 20, influenced by the limiting block 28 and the stop block 29, the outer wall 21 can rotate in one direction, ensuring smooth degreasing.

[0049] like Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 In the illustrated implementation, a rotating cylinder 3 is mounted on a movable base 1, and the rotating cylinder 3 is detachably connected to the movable base 1. A rotating rod 4 is mounted on a movable base 2, and the rotating rod 4 is detachably connected to the movable base 2. The diameter of the outer wall 21 is positioned between the rotating rod 4 and the rotating cylinder 3. A limiting groove 15 is provided on the rotating cylinder 3, and a brush tube 16 is installed at the limiting groove 15. The brush tube 16 is detachably connected to the rotating cylinder 3 through the limiting groove 15. A brush hole is provided on the limiting groove 15, and the brush hole communicates with the limiting groove 15. An oil-absorbing layer 17 is installed on the brush tube 16, and the oil-absorbing layer 17 passes through the brush hole and is positioned outside the limiting groove 15. A microcontroller 36 and a speaker 37 are mounted on the rotating cylinder 3. A touch switch is installed on the oil-absorbing layer 17, and the touch switch is connected to the microcontroller 36. The microcontroller is connected to the speaker 37. The movable base 1 is provided with a limiting cavity 26 and a plug interface 27. The limiting cavity 26 and the plug interface 27 are connected. The front end of the steel pipe body is equipped with a connecting ring 32. Two limiting blocks 28 are installed on the connecting ring 32. The two limiting blocks 28 are respectively placed at the upper and lower ends of the connecting ring 32. Two stops 29 are installed on the limiting cavity 26. The two stops 29 are symmetrically distributed with the center of the limiting cavity 26 as the base point. The limiting cavity 26 and the plug interface 27 are matched with the limiting blocks 28. The steel pipe body is detachably connected to the movable base 1 through the cooperation of the limiting cavity 26, the plug interface 27 and the limiting blocks 28. The rotating rod 4 is fitted with an oil-absorbing layer 25. The rear end of the steel pipe body is detachably connected to the movable base 2.

[0050] like Figure 5 , Figure 6 , Figure 7 , Figure 9 and Figure 10 As shown, the movable base 1 has a connecting groove 18, and a connecting block 19 is installed in the connecting groove 18. A motor 5 and a plug 12 are installed on the movable base 1, and the motor 5 is electrically connected to the plug 12. A motor shaft 20 is installed on the motor 5, and the motor shaft 20 is connected to the front end of the connecting block 19. A limiting cavity 26 is placed inside the connecting block 19, and a plug interface 27 is placed at the rear end of the connecting block 19. The steel pipe body is connected to the motor 5 through the connecting block 19. The movable base 2 has a socket 14 and a power supply 13, and the socket 14 is electrically connected to the power supply 13. The plug 12 is matched with the socket 14. A support block 7 is installed on the movable base 1, and an electrical connection groove 11 is provided on the support block 7. The plug 12 is placed in the electrical connection groove 11. The motor 5 and the rotating cylinder 3 are respectively placed at the front and rear ends of the movable base 1. The distance between the plug 12 and the rear end of the movable base 1 is equal to the distance between the two ends of the rotating cylinder 3.

[0051] like Figure 10 , Figure 11 and Figure 12 As shown, a motor 6 is mounted on the movable base 2, and the motor 6 is electrically connected to the socket 14. A motor shaft 23 is mounted on the motor 6. The movable base 2 has a connecting hole 22, and the motor shaft 23 is placed inside the connecting hole 22. The rotating rod 4 is connected to the motor shaft 23. The movable base 2 has a stainless steel tube groove 24, which fits outside the connecting hole 22. A connecting ring 33 is installed at the rear end of the steel tube body, and the connecting ring 33 matches the stainless steel tube groove 24. A support block 8 is mounted on the movable base 2. The socket 14 and the power supply 13 are both placed on the support block 8, and the position of the socket 14 corresponds to the position of the plug 12.

[0052] like Figure 4As shown, several rollers 9 are installed at the bottom of the movable seat 1 and the bottom of the support block 7. The movable seat 1 and the support block 7 are detachably connected to the rollers 9. The rotating cylinder 3 is placed between the top of the movable seat 1 and the support block 7. Several rollers 10 are installed at the bottom of the movable seat 2 and the bottom of the support block 8. The movable seat 2 and the support block 2 are detachably connected to the rollers 10. The rotating rod 4 is placed between the top of the movable seat 2 and the support block 2. Roller shafts 30 are installed at the bottom of both the movable seat 1 and the support block 7. Both the movable seat 1 and the support block 7 are connected to the roller shafts 30. Several rollers 9 are evenly distributed on the roller shafts 30. Both the movable seat 1 and the support block 7 are connected to the rollers 9 through the roller shafts 30. Roller shafts 31 are installed at the bottom of both the movable seat 2 and the support block 8. Both the movable seat 2 and the support block 8 are connected to the roller shafts 31. Several rollers 10 are evenly distributed on the roller shafts 31. Both the movable seat 2 and the support block 8 are connected to the rollers 10 through the roller shafts 31.

[0053] First, place the movable base 1 and movable base 2 on a flat surface, with the rotating cylinder 3 mounted on movable base 1 and the rotating rod 4 mounted on movable base 2 facing each other. Then, insert the connecting ring 32, which is mounted on the front end of the stainless steel pipe body to be cold-rolled and degreased, into the rotating cylinder 3 on movable base 1, allowing the connecting ring 32 to fit inside the rotating cylinder 3. During the fitting of the steel pipe body, the outer wall 21 of the steel pipe body is inside the rotating cylinder 3, until the connecting ring 32 reaches the connecting block 19 mounted in the connecting groove 18 of movable base 1. Here, the motor 5 mounted on movable base 1 is connected to the front end of the connecting block 19 through the motor shaft 20, and the rear end of the connecting block 19 is provided with an insertion interface. 27. The insertion interface 27 is connected to the limiting cavity 26 in the connecting block 19. The connecting ring 32 can be inserted into the limiting cavity 26 through the insertion interface 27. In addition, two limiting blocks 28 are installed on the connecting ring 32, and the two limiting blocks 28 are respectively placed at the upper and lower ends of the connecting ring 32. Two stops 29 are installed in the limiting cavity 26. The two stops 29 are symmetrically distributed with the center of the limiting cavity 26 as the base point. When the connecting ring 32 is inserted, the two limiting blocks 28 are inserted. In this way, the steel pipe can be rotated until the two stops 29 block the two limiting blocks 28. This completes the limiting work of the front end of the steel pipe and reduces the probability of the steel pipe coming off the connecting block 19 from the insertion interface 27. Here, the rotating cylinder 3 is provided with a limiting groove 15, and a brush tube 16 can be inserted into the limiting groove 15, so that the oil-absorbing layer 17 on the brush tube 16 passes through the brush hole and is placed outside the limiting groove 15. When the connecting ring 32 is fitted into the rotating cylinder 3, the outer wall 21 comes into contact with the oil-absorbing layer 17.

[0054] The movable seat 2 can be controlled to move towards the movable seat 1. Roller shafts 30 are installed at the bottom of the movable seat 1 and the bottom of the support block 7. Several rollers 9 are evenly distributed on the roller shafts 30. Roller shafts 31 are installed at the bottom of the movable seat 2 and the bottom of the support block 8. Several rollers 10 are evenly distributed on the roller shafts 31. In this way, the movement of the movable seat 2 can be controlled by the rolling effect of the rollers 10, which reduces the friction when the movable seat 2 moves. However, the movable seat 1 must be limited first to prevent the movable seat 1 from being impacted and moving when the movable seat 2 moves to touch the movable seat 1. In this way, the connection between the movable seat 1 and the movable seat 2 cannot be performed. The limiting effect can also prevent the front end of the movable seat 1 from being blocked by a vertical plane. This allows the rotating rod 4 on the movable seat 2 to be inserted into the inner wall 34 of the stainless steel pipe, meaning the oil-absorbing layer 25 on the rotating rod 4 contacts the inner wall 34. Meanwhile, the connecting ring 33 at the rear end of the pipe is inserted into the stainless steel groove 24 on the movable seat 2, thus connecting the rear end of the pipe to the movable seat 2. This stably limits the movement of both ends of the pipe, facilitating the cold rolling degreasing process. The stainless steel groove 24 fits within the connecting hole 22, and the motor shaft 23 on the motor 6 passes through the connecting hole 22 and connects to the rotating rod 4. This ensures that when the rotating rod 4 is inserted into the inner wall 34, the oil-absorbing layer 25 can smoothly contact the inner wall 34.

[0055] When the movable base 2 is moved, the socket 14 installed on the movable base 2 also moves towards the support block 7 along with the movement of the support block 28. This allows the socket 14 and the power supply 13 connected to it to be smoothly inserted into the electrical connection slot 11 on the support block 7, thus completing the electrical connection between the plug 12 and the socket 14 in the electrical connection slot 11. The motor 5 on the movable base 11 is electrically connected to the plug 12, and the motor 6 on the movable base 2 is electrically connected to the socket 14, so the operation of the motor 5 and the motor 6 is turned on in time.

[0056] The function of motors 5 and 6 is to rotate motor shafts 20 and 23, which means that oil-absorbing layer 17 performs cold rolling degreasing on the outer wall 21, and oil-absorbing layer 25 performs cold rolling degreasing on the inner wall 34. Here, the rotation directions of motor shafts 20 and 23 can be set to opposite directions to enhance the degreasing effect on the outer wall 21 and inner wall 34 of the steel pipe. During the rotation of motor shaft 20, due to the effect of the limiting block 28 and the stop block 29, the outer wall 21 can rotate in one direction, allowing the degreasing work to proceed smoothly.

[0057] When the first oil-absorbing layer 17 performs cold rolling degreasing on the outer wall 21, it exerts a squeezing and friction effect on the outer wall 21. Similarly, when the second oil-absorbing layer 25 performs cold rolling degreasing on the inner wall 34, it exerts a squeezing and friction effect on the inner wall 34. The inner wall 34 is polygonal in shape, which, compared to a regular circle, enhances its bending resistance, reducing the probability of deformation of the steel pipe under long-term load. This achieves the purpose of setting a structure that enhances bending resistance. Furthermore, when the first oil-absorbing layer 17 squeezes and rubs against the outer wall 21, it rotates to the groove 35 on the outer wall 21. The touch switch installed on the first oil-absorbing layer 17 then disengages from the outer wall 21, allowing it to transmit this information to the microcontroller 36. The microcontroller 36 processes the information and then transmits it to the speaker 37, causing the speaker 37 to emit an audible alert. In this way, by intermittently hearing the beeping sound of horn 37, one can know that the oil-absorbing layer 17 is performing normal oil removal work.

[0058] Oil-absorbing layer 17 and oil-absorbing layer 25 can be made of oil-absorbing cloth, which not only has a good oil absorption effect, but is also cheap and easy to replace. The brush tube 16 is inserted into the limiting groove 15 of the rotating cylinder 3, which also facilitates the insertion and removal of the brush tube 16 and makes it easy to replace the oil-absorbing layer 17 installed on the brush tube 16.

Claims

1. A cold rolling degreasing process for stainless steel pipes, characterized in that, The stainless steel pipe includes a pipe body, which includes an outer wall (21) and an inner wall (34). The outer wall (21) is fitted over the inner wall (34). The inner wall (34) is polygonal in shape. The outer wall (21) is provided with a groove (35), and the positions of the two ends of the groove (35) correspond to the positions of the two ends of the outer wall (21). Its cold rolling degreasing process includes the following steps: Step 1: Place the steel pipe body that needs to be cold rolled and degreased into the rotating cylinder (3) on the moving seat (1), and let the front end of the steel pipe body be inserted into the limiting cavity (26) of the connecting block (19). Rotate the steel pipe body until it is blocked by the stop block (29) in the limiting cavity (26) and cannot continue to rotate. Step 2: Control the moving seat 2 (2) to move in the direction of moving seat 1 (1). When moving the moving seat 2 (2), the rotating rod (4) on the moving seat 2 (2) needs to be inserted into the steel pipe body until the rear end of the steel pipe body is inserted into the stainless steel pipe groove (24). Step 3: When the moving work of the second moving seat (2) is completed, the socket (14) installed on the second moving seat (2) is inserted into the electrical connection slot (11) on the first moving seat (1), and the plug (12) installed in the electrical connection slot (11) is connected to the socket (14), and the first motor (5) and the second motor (6) are started at the same time. Step 4: When motor 1 (5) is working, it drives motor shaft 1 (20) to rotate, and the steel pipe body connected by connecting block (19) is also driven to rotate. Then, the outer wall (21) of the steel pipe body is degreased by the brushing effect of the oil-absorbing layer 1 (17) installed in the rotating cylinder (3). When motor 2 (6) is working, it drives motor shaft 2 (23) to rotate, and the oil-absorbing layer 2 (25) on the rotating rod (4) connected to motor shaft 2 (23) can degrease the inner wall (34) of the stainless steel pipe. The movable seat A rotating cylinder (3) is installed on a movable seat (1), and the rotating cylinder (3) is detachably connected to the movable seat (1). A rotating rod (4) is installed on the movable seat (2), and the rotating rod (4) is detachably connected to the movable seat (2). The diameter of the outer wall (21) is located between the rotating rod (4) and the rotating cylinder (3). A limiting groove (15) is provided on the rotating cylinder (3), and a brush tube (16) is installed at the limiting groove (15). The brush tube (16) is detachably connected to the rotating cylinder (3) through the limiting groove (15). A brush hole is provided on the limiting groove (15), and the brush hole is connected to the limiting groove (15). An oil-absorbing layer (17) is installed on the brush tube (16). The oil-absorbing layer (17) passes through the brush hole and is placed outside the limiting groove (15). A microcontroller (36) and a speaker (37) are installed on the rotating cylinder (3). A touch switch is installed on the oil-absorbing layer (17). The touch switch is electrically connected to the microcontroller (36). The microcontroller (36) is electrically connected to the speaker (37). A limiting cavity (26) and a moving seat (1) are provided on the moving seat (1). The insertion interface (27) is connected to the limiting cavity (26). A connecting ring (32) is installed at the front end of the steel pipe body. Two limiting blocks (28) are installed on the connecting ring (32). The two limiting blocks (28) are respectively placed at the upper and lower ends of the connecting ring (32). Two stops (29) are installed on the limiting cavity (26). The two stops (29) are symmetrically distributed with the center of the limiting cavity (26) as the base point. The limiting cavity (26) and the insertion interface (27) are matched with the limiting blocks (28). The steel pipe body is detachably connected to the moving seat (1) through the cooperation of the limiting cavity (26), the insertion interface (27) and the limiting blocks (28). An oil-absorbing layer (25) is fitted on the rotating rod (4). The rear end of the steel pipe body is detachably connected to the moving seat (2).

2. The cold rolling degreasing process for stainless steel pipes according to claim 1, characterized in that, The first movable seat (1) is provided with a connecting groove (18), and a connecting block (19) is installed in the connecting groove (18). The first movable seat (1) is provided with a motor (5) and a plug (12). The first motor (5) is electrically connected to the plug (12). The first motor (5) is provided with a motor shaft (20). The first motor shaft (20) is connected to the front end of the connecting block (19). The limiting cavity (26) is placed in the connecting block (19). The plug interface (27) is placed at the rear end of the connecting block (19). The steel pipe body is connected to the first motor (5) through the connecting block (19). The second movable seat (2) is provided with a socket (14) and a power supply (13). The socket (14) is electrically connected to the power supply (13). The plug (12) is matched with the socket (14).

3. The cold rolling degreasing process for stainless steel pipes according to claim 2, characterized in that, The movable seat (1) is equipped with a support block (7), the support block (7) is provided with an electrical connection groove (11), the plug (12) is placed in the electrical connection groove (11), the motor (5) and the rotating cylinder (3) are respectively placed at the front and rear ends of the movable seat (1), and the distance between the plug (12) and the rear end of the movable seat (1) is equal to the distance between the two ends of the rotating cylinder (3).

4. The cold rolling degreasing process for stainless steel pipes according to claim 3, characterized in that, The second movable seat (2) is equipped with a second motor (6), which is electrically connected to the socket (14). The second motor (6) is equipped with a second motor shaft (23). The second movable seat (2) is provided with a connecting hole (22). The second motor shaft (23) is placed in the connecting hole (22). The rotating rod (4) is connected to the second motor shaft (23).

5. The cold rolling degreasing process for stainless steel pipes according to claim 4, characterized in that, The movable seat 2 (2) is provided with a stainless steel pipe groove (24), which is fitted outside the connecting hole (22). A connecting ring 2 (33) is installed at the rear end of the steel pipe body, and the connecting ring 2 (33) matches the stainless steel pipe groove (24).

6. The cold rolling degreasing process for stainless steel pipes according to claim 4, characterized in that, The second movable seat (2) is equipped with a second support block (8). The socket (14) and the power supply (13) are both placed on the second support block (8). The position of the socket (14) corresponds to the position of the plug (12).

7. The cold rolling degreasing process for stainless steel pipes according to claim 6, characterized in that, Several rollers (9) are installed at the bottom of the first movable seat (1) and the bottom of the first support block (7). The first movable seat (1) and the first support block (7) are detachably connected to the rollers (9). The rotating cylinder (3) is placed between the top of the first movable seat (1) and the first support block (7). Several rollers (10) are installed at the bottom of the second movable seat (2) and the bottom of the second support block (8). The second movable seat (2) and the second support block (8) are detachably connected to the rollers (10). The rotating rod (4) is placed between the top of the second movable seat (2) and the second support block (8).

8. The cold rolling degreasing process for stainless steel pipes according to claim 6, characterized in that, Roller shafts (30) are installed at the bottom of the first movable seat (1) and the bottom of the first support block (7). The first movable seat (1) and the first support block (7) are connected to the roller shafts (30). Several rollers (9) are evenly distributed on the roller shafts (30). The first movable seat (1) and the first support block (7) are connected to the rollers (9) through the roller shafts (30). Roller shafts (31) are installed at the bottom of the second movable seat (2) and the bottom of the second support block (8). The second movable seat (2) and the second support block (8) are connected to the roller shafts (31). Several rollers (10) are evenly distributed on the roller shafts (31). The second movable seat (2) and the second support block (8) are connected to the rollers (10) through the roller shafts (31).

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