A reducing mill based on multi-connection continuous calender process and a reducing adjustment method thereof

Abstract

The application discloses a reducing mill based on a multi-connection continuous calendering process, which comprises a workbench horizontally placed, racks uniformly arranged on the workbench, sliding seats uniformly installed on the racks, a reducing motor fixedly installed on the sliding seats, and a reducing roller fixedly installed at an output end of the reducing motor and used for realizing reducing; further comprising: an adjusting mechanism installed at a left side of the rack; a detection mechanism installed at a right side of the rack and used for realizing outer diameter detection of a workpiece after reducing and then controlling the adjusting mechanism to realize real-time regulation and control; and a lubricating assembly arranged at an inner side of the rack and used for realizing oil injection driving through workpiece conveying. The reducing mill based on the multi-connection continuous calendering process can realize real-time detection of the diameter of a metal material during reducing, can realize real-time adjustment of reducing without stopping, can effectively improve reducing efficiency and precision, and can realize automatic lubrication during reducing.

Description

Technical Field

[0001] This invention relates to the technical field of reducing mills, specifically a reducing mill based on a multi-stage continuous calendering process. Background Technology

[0002] In the metal processing process, in order to meet the subsequent processing requirements, the metal materials need to be rolled and reduced in diameter, so a reducing machine is required.

[0003] In the prior art, such as the four-roll reducing mill for high-precision seamless steel pipes disclosed in CN109877160B, there is a base plate, a feeding device, a processing device, a shaping device, and a processed steel pipe. The feeding device is located on one side of the top of the base plate and is fixedly connected to the base plate. The processing device is located on one side of the feeding device and is fixedly connected to the base plate. The shaping device is located on one side of the processing device and is fixedly connected to the base plate. This four-roll reducing mill for high-precision seamless steel pipes is designed with four rolls. The feeding device pushes the steel pipe forward and rotates it. The rotation of the processed steel pipe helps to ensure the uniform wall thickness of the processed steel pipe during subsequent processing. Then, the steel pipe is reduced in diameter by four extrusion rolls. The diameter of the extrusion rolls gradually decreases, ensuring uniform wall thickness of the steel pipe while reducing the diameter. This reduces processing steps, simplifies operation, saves processing costs, and improves the quality of the steel pipe. However, in use, the fixed installation method of the extrusion rolls makes it inconvenient to adjust the diameter reduction size according to specific production needs, reducing the applicability of the reducing mill.

[0004] For example, a high-precision steel pipe four-roll four-roll reducing mill with publication number CN215696786U includes a support platform. The upper part of the support platform is provided with a moving groove. A second motor is provided on the left side of the moving groove. The right end of the second motor extends into a motor shaft, and one end of the motor shaft is fixedly connected to a lead screw. A moving block is threaded to the side of the lead screw. A support plate is fixedly connected to the upper end of the moving block. A support box is fixedly connected to the upper end of the support plate. A reducing box is fixedly connected to the upper right side of the support platform. A second cylinder is provided on all four sides of the inside of the reducing box. One end of the second cylinder extends into a telescopic rod, and one end of the telescopic rod is fixedly connected to a support frame. A rotating rod is provided on the inner side of the support frame. A roller is passed through the rotating rod. The inner wall of the roller is rotatably connected to the side of the rotating rod. It can be effectively used for reducing the diameter of steel pipes, but when adjusting the position of the rolls, multiple telescopic rods need to be controlled individually to push them, which can easily lead to errors in position adjustment. Furthermore, it is not convenient to automatically monitor and adjust based on the measurement after diameter reduction, which has certain defects in use. Summary of the Invention

[0005] The purpose of this invention is to provide a reducing mill based on a multi-unit continuous calendering process, so as to solve the problems mentioned in the background art that the reducing mills currently on the market are inconvenient for automatic detection and non-stop reducing control.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a reducing mill based on a multi-unit continuous calendering process, comprising a horizontally placed worktable, a frame evenly arranged on the worktable, slides evenly installed on the frame, a reducing motor fixedly installed on the slides, and a reducing roller fixedly installed at the output end of the reducing motor to achieve reducing diameter;

[0007] It also includes: an adjustment mechanism, installed on the left side of the frame, used to achieve synchronous adjustment of multiple reducing rollers, thereby realizing diameter reduction adjustment;

[0008] The detection mechanism, installed on the right side of the frame, detects the outer diameter of the workpiece after diameter reduction, and then controls the adjustment mechanism for real-time regulation.

[0009] The lubrication assembly is located inside the frame and is driven by the conveying of the workpiece to spray oil, thereby lubricating the surface of the reducing roller.

[0010] Preferably, the adjustment mechanism includes a first rotating cylinder rotatably mounted on the left side of the frame, and the output end of the servo motor and the first rotating cylinder are connected by a gear and a gear ring for transmission. The through hole between the first rotating cylinder and the frame is coaxial with the workpiece, and an adjustment ring is threadedly connected to the outer side of the first rotating cylinder.

[0011] By adopting the above technical solution, when the control servo motor starts, it can drive the first rotating cylinder to rotate synchronously, so that the first rotating cylinder is threadedly connected to the adjusting ring, thereby driving the adjusting ring to move left and right for adjustment.

[0012] Preferably, a connecting rod is rotatably connected to the outer side of the adjusting ring, and the connecting rod is rotatably connected to the slide block. A guide rail is fixedly installed on the outer side of the frame, and the slide block and the guide rail are slidably connected.

[0013] By adopting the above technical solution, when the adjusting ring moves, multiple slide blocks can be pulled along the guide rail by the connecting rod to adjust the gap between each reducing roller, thereby realizing the diameter reduction adjustment.

[0014] Preferably, the detection mechanism includes a second rotating cylinder rotatably mounted on the right side of the frame, and a support frame is uniformly fixedly mounted on the outer side of the second rotating cylinder. A rotating component is elastically rotatably mounted on the outer side of the upper fixed shaft of the support frame. At the same time, a detection wheel is rotatably mounted on the end of the rotating component close to the workpiece, and the detection wheel is in contact with the outer wall of the workpiece.

[0015] By adopting the above technical solution, the rotating component drives the detection wheel to rotate and fit against the outside of the workpiece under the action of elasticity, so that the detection wheel can rotate synchronously during the workpiece transportation process.

[0016] Preferably, the detection mechanism further includes a pressure gauge fixedly installed at the end of the second rotating cylinder, and the pressure gauge is attached to the rotating component.

[0017] By adopting the above technical solution, when the outer diameter of the workpiece changes, the rotating part will rotate elastically, thereby changing the force applied to the pressure gauge and thus achieving real-time and accurate detection.

[0018] Preferably, a pulley is rotatably mounted on the outer side of the support frame shaft, and a pulley is fixedly mounted on the shaft of the detection wheel. The two pulleys are connected by a belt drive, and a helical gear is fixedly mounted on the end of the pulley on the outer side of the support frame.

[0019] By adopting the above technical solution, when the detection wheel rotates, the helical gear can be driven to rotate synchronously through the belt pulley transmission.

[0020] Preferably, the detection mechanism further includes a helical gear ring fixedly installed on the outside of the frame, and the helical gear ring and the helical gear are meshed together.

[0021] By adopting the above technical solution, the helical gear can mesh with the helical gear ring when it rotates, thereby driving the second rotating cylinder to rotate synchronously through the helical gear ring. This allows the detection wheel to perform axial detection on the outer side of the workpiece, further improving the detection accuracy.

[0022] Preferably, the lubrication assembly includes a push plate fixedly installed on the outside of the second rotating cylinder and a piston cylinder fixedly installed on the inner wall of the frame. The push plate is spindle-shaped, and a piston rod connected to a piston plate is elastically telescopically installed on the inner side of the piston cylinder. At the same time, the lower end of the piston rod abuts against the arc surface of the push plate. An oil tank is installed at the upper end of the frame, and the oil tank and the piston cylinder are connected by a pipe. The piston cylinder is connected to a spray pipe with a nozzle facing the reducing roller.

[0023] By adopting the above technical solution, when the second rotating cylinder rotates, it can drive the push plate to rotate synchronously, so that the push plate pushes the piston rod to reciprocate elastically, allowing the piston cylinder to draw in lubricating oil and spray it onto the reducing roller through the spray pipe, thereby achieving cooling and lubrication.

[0024] A method for adjusting the diameter reduction of a reducing mill based on a multi-stage continuous calendering process, comprising the following steps:

[0025] S1: According to the required diameter reduction, control the servo motor to drive the first rotating drum to rotate, so that the first rotating drum drives the adjusting ring to adjust left and right, so that the adjusting ring drives the slide block to adjust through the connecting rod, thereby adjusting the initial position of each diameter reduction roller and feeding the material into the frame to realize the diameter reduction operation;

[0026] S2: The reduced diameter workpiece will be discharged from the right side of the frame. At this time, the workpiece will enter the inner side of the second rotating cylinder and push the detection wheel, causing the rotating part to rotate elastically. At this time, the rotating part will drive the detection wheel to roll against the outer side of the workpiece under the action of elasticity. At this time, the detection wheel will drive the helical gear to rotate through the transmission action, and then drive the detection mechanism to rotate through the meshing of the helical gear and the helical gear ring. At this time, the detection wheel can roll against the outer wall of the workpiece.

[0027] S3: When the diameter of the workpiece after reduction does not meet the preset requirements, the detection wheel will drive the rotating part to rotate elastically during the rolling process, thereby changing the force applied by the rotating part to the pressure gauge. When the pressure gauge detects the change in pressure, the system controls the servo motor to start, thereby automatically adjusting the position of each reduction roller again, thus achieving reduction adjustment without stopping the machine.

[0028] Compared with the prior art, the beneficial effects of the present invention are: the reducing mill based on the multi-unit continuous rolling process can detect the diameter of the metal material in real time during the reducing process, and can adjust the reducing process in real time without stopping the machine, which effectively improves the reducing efficiency and accuracy. At the same time, it can achieve automatic lubrication during the reducing process. The specific contents are as follows.

[0029] 1. The machine is equipped with a first rotating drum, an adjusting ring, a connecting rod, and a reducing roller. By starting the servo motor, the first rotating drum can be driven to rotate synchronously, so that the adjusting ring on the outside of the first rotating drum can be adjusted to the left and right. The adjusting ring can be adjusted by pulling the slide block through the connecting rod, thereby realizing the synchronous control of the position of multiple reducing rollers and realizing the adjustment of the reducing size without stopping the machine.

[0030] 2. Equipped with a rotating component, detection wheel, and pressure gauge, when the metal material is conveyed, the detection wheel will roll against the surface of the material, thereby driving the helical gear to rotate synchronously, so that the helical gear meshes with the helical gear ring, and then the second rotating cylinder drives multiple detection wheels to rotate synchronously. When the outer diameter of the metal material changes, the rotating component will rotate elastically, thereby changing the force applied to the pressure gauge, realizing real-time monitoring of the outer diameter of the material.

[0031] 3. Equipped with a pusher plate and a piston cylinder, the pusher plate at the end of the second rotating cylinder rotates synchronously, thereby pushing the piston rod to reciprocate elastically, so that the piston cylinder can automatically draw lubricating oil from the oil tank and spray it onto the reducing roller through the spray pipe, achieving effective cooling and lubrication during the reducing process. Attached Figure Description

[0032] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0033] Figure 2 This is a schematic diagram of the left-side structure of the frame of the present invention;

[0034] Figure 3 This is a schematic diagram of the right-side structure of the frame of the present invention;

[0035] Figure 4 This is a schematic diagram of the diameter reduction roller installation structure of the present invention;

[0036] Figure 5 This is a three-dimensional structural diagram of the detection mechanism of the present invention;

[0037] Figure 6 This is a schematic diagram of the push plate mounting structure of the present invention;

[0038] Figure 7 This is a schematic diagram of the installation structure of the detection wheel of the present invention.

[0039] In the diagram: 1. Workbench; 2. Frame; 3. Servo motor; 4. First rotating cylinder; 5. Adjusting ring; 6. Connecting rod; 7. Slide; 8. Guide rail; 9. Reduction motor; 10. Reduction roller; 11. Second rotating cylinder; 12. Support frame; 13. Rotating component; 14. Detection wheel; 15. Pulley; 16. Helical gear; 17. Helical gear ring; 18. Pressure gauge; 19. Oil tank; 20. Push plate; 21. Piston cylinder; 22. Piston rod; 23. Spray pipe. Detailed Implementation

[0040] 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.

[0041] Please see Figures 1-7The present invention provides a technical solution: a reducing machine based on a multi-unit continuous calendering process, including a horizontally placed workbench 1, a frame 2 evenly arranged on the workbench 1, and slides 7 evenly installed on the frame 2, and a reducing motor 9 fixedly installed on the slides 7, and a reducing roller 10 fixedly installed at the output end of the reducing motor 9 to achieve reducing diameter.

[0042] It also includes: an adjustment mechanism, installed on the left side of the frame 2, used to realize the synchronous adjustment of multiple reducing rollers 10, thereby achieving diameter reduction adjustment;

[0043] The adjustment mechanism includes a first rotating cylinder 4 rotatably mounted on the left side of the frame 2. The output end of the servo motor 3 and the first rotating cylinder 4 are connected by a gear and a gear ring for transmission. The through hole between the first rotating cylinder 4 and the frame 2 is coaxial with the workpiece. An adjustment ring 5 is threadedly connected to the outer side of the first rotating cylinder 4. A connecting rod 6 is rotatably connected to the outer side of the adjustment ring 5. The connecting rod 6 is rotatably connected to the slide block 7. A guide rail 8 is fixedly mounted on the outer side of the frame 2. The slide block 7 and the guide rail 8 are slidably connected.

[0044] like Figures 1-4 As shown, according to the processing size requirements, the servo motor 3 drives the first rotating cylinder 4 to rotate, so that the first rotating cylinder 4 is threadedly connected to the adjusting ring 5, thereby adjusting the position of the adjusting ring 5. The adjusting ring 5 drives the slide block 7 to slide along the guide rail 8 through the connecting rod 6, thereby adjusting the position of the reducing roller 10, so that the reducing roller 10 can adjust the reducing size. Then, the metal material is introduced into the frame 2, and the reducing motor 9 is started at the same time, so that multiple reducing rollers 10 roll and reduce the diameter of the metal material.

[0045] The detection mechanism, installed on the right side of the frame 2, detects the outer diameter of the reduced-diameter workpiece and controls the adjustment mechanism for real-time regulation. The detection mechanism includes a second rotating cylinder 11 rotatably mounted on the right side of the frame 2. A support frame 12 is uniformly fixedly mounted on the outer side of the second rotating cylinder 11. A rotating component 13 is elastically rotatably mounted on the outer side of the upper fixed shaft of the support frame 12. A detection wheel 14 is rotatably mounted on the end of the rotating component 13 closest to the workpiece, and the detection wheel 14 is in contact with the outer wall of the workpiece. The detection mechanism also includes a pressure gauge 18 fixedly mounted on the end of the second rotating cylinder 11, and the pressure gauge 18 is in contact with the rotating component 13. A pulley 15 is rotatably mounted on the outer side of the shaft of the support frame 12, and a pulley 15 is fixedly mounted on the shaft of the detection wheel 14. The two pulleys 15 are connected by a belt drive. A helical gear 16 is fixedly mounted on the end of the pulley 15 on the outer side of the support frame 12. The detection mechanism also includes a helical gear ring 17 fixedly mounted on the outer side of the frame 2, and the helical gear ring 17 and the helical gear 16 are meshed together.

[0046] like Figure 3 and Figures 5-7As shown, after the metal material is reduced in diameter, it will be discharged from the right side of the frame 2. At this time, the rotating component 13 drives the detection wheel 14 to fit against the outside of the metal material under the action of elastic force. As the material is further conveyed, the detection wheel 14 will roll along the surface of the material, so that the detection wheel 14 drives the helical gear 16 to rotate through the pulley 15, so that the helical gear 16 meshes with the helical gear ring 17, and then the helical gear 16 drives the second rotating cylinder 11 to rotate synchronously, so that the detection wheel 14 can detect the material axially. When the size of the material after diameter reduction changes, the detection wheel 14 will drive the rotating component 13 to rotate elastically, thereby changing the force applied by the rotating component 13 to the pressure gauge 18, thereby realizing real-time monitoring of the material after diameter reduction, and adjusting the position of the diameter reduction roller 10 through the system control servo motor 3.

[0047] The lubrication assembly, located inside the frame 2, drives oil spraying through the conveying of the workpiece, thereby lubricating the surface of the reducing roller 10. The lubrication assembly includes a push plate 20 fixedly installed on the outside of the second rotating cylinder 11 and a piston cylinder 21 fixedly installed on the inner wall of the frame 2. The push plate 20 is spindle-shaped, and a piston rod 22 connected to a piston plate is elastically telescopically installed on the inner side of the piston cylinder 21. At the same time, the lower end of the piston rod 22 abuts against the arc surface of the push plate 20. An oil tank 19 is installed at the upper end of the frame 2, and the oil tank 19 and the piston cylinder 21 are connected by a pipe. The piston cylinder 21 is connected to a spray pipe 23 with the nozzle facing the reducing roller 10.

[0048] like Figure 1 and Figures 4-6 As shown, as the second rotating cylinder 11 rotates, the push plate 20 on the outside of the second rotating cylinder 11 pushes the piston rod 22, causing the piston rod 22 to drive the piston plate to reciprocate up and down in the piston cylinder 21. This allows the piston cylinder 21 to draw lubricating oil from the oil tank 19 through the pipe and spray the lubricating oil onto the reducing roller 10 through the spray pipe 23, thus achieving automatic lubrication and cooling.

[0049] A method for adjusting the diameter reduction of a reducing mill based on a multi-stage continuous calendering process, comprising the following steps:

[0050] S1: According to the required diameter reduction, control the servo motor 3 to drive the first rotating drum 4 to rotate, so that the first rotating drum 4 drives the adjusting ring 5 to adjust left and right, so that the adjusting ring 5 drives the slide block 7 to slide through the connecting rod 6, thereby adjusting the initial position of each diameter reduction roller 10 and feeding the material into the frame 2 to realize the diameter reduction operation.

[0051] S2: The reduced diameter workpiece will be discharged from the right side of the frame 2. At this time, the workpiece will enter the inner side of the second rotating cylinder 11 and push the detection wheel 14, causing the rotating part 13 to rotate elastically. At this time, the rotating part 13 will drive the detection wheel 14 to roll against the outer side of the workpiece under the action of elasticity. At this time, the detection wheel 14 will drive the helical gear 16 to rotate through the transmission action. Then, through the meshing of the helical gear 16 and the helical gear ring 17, the detection mechanism will be driven to rotate. At this time, the detection wheel 14 can roll against the outer wall of the workpiece.

[0052] S3: When the diameter of the workpiece after reduction does not meet the preset requirements, the detection wheel 14 will drive the rotating part 13 to rotate elastically during the rolling process, thereby changing the force applied by the rotating part 13 to the pressure gauge 18. When the pressure gauge 18 detects the change in pressure, it starts the servo motor 3 through system control, thereby automatically adjusting the position of each reduction roller 10 again, thus realizing the reduction adjustment without stopping the machine.

[0053] In summary, when using this reducing mill based on a multi-stage continuous calendering process, firstly, a series of tasks are completed.

[0054] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0055] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A reducing mill based on a multi-unit continuous calendering process, comprising a horizontally placed worktable (1), a frame (2) uniformly arranged on the worktable (1), and a slide (7) uniformly installed on the frame (2), and a reducing motor (9) fixedly installed on the slide (7), while a reducing roller (10) is fixedly installed at the output end of the reducing motor (9) to achieve reducing diameter; Its features are, Also includes: The adjustment mechanism is installed on the left side of the frame (2) to realize the synchronous adjustment of multiple reducing rollers (10) and achieve the reduction adjustment; The detection mechanism is installed on the right side of the frame (2) to detect the outer diameter of the workpiece after diameter reduction, and then control the adjustment mechanism for real-time adjustment. The detection mechanism includes a second rotating cylinder (11) rotatably installed on the right side of the frame (2), and a support frame (12) is evenly fixedly installed on the outer side of the second rotating cylinder (11). A rotating component (13) is elastically rotatably installed on the outer side of the upper fixed shaft of the support frame (12). At the same time, a detection wheel (14) is rotatably installed on the end of the rotating component (13) close to the workpiece, and the detection wheel (14) is in contact with the outer wall of the workpiece. The detection mechanism also includes a fixed The pressure gauge (18) is installed at the end of the second rotating cylinder (11) and is attached to the rotating part (13). A pulley (15) is rotatably installed on the outer side of the shaft of the support frame (12), and a pulley (15) is fixedly installed on the shaft of the detection wheel (14). The two pulleys (15) are connected by belt drive. At the same time, a helical gear (16) is fixedly installed at the end of the pulley (15) on the outer side of the support frame (12). The detection mechanism also includes a helical tooth ring (17) fixedly installed on the outer side of the frame (2), and the helical tooth ring (17) and the helical gear (16) are meshed. The lubrication assembly is located inside the frame (2) and drives the oil spraying through the conveying of the workpiece to lubricate the surface of the reducing roller (10). The lubrication assembly includes a push plate (20) fixedly installed on the outside of the second rotating cylinder (11) and a piston cylinder (21) fixedly installed on the inner wall of the frame (2). The push plate (20) is spindle-shaped, and the piston cylinder (21) is elastically telescopically installed with a piston rod (22) connecting the piston plate. At the same time, the lower end of the piston rod (22) abuts against the arc surface of the push plate (20). An oil tank (19) is installed at the upper end of the frame (2), and the oil tank (19) and the piston cylinder (21) are connected by a pipe. The piston cylinder (21) is connected to a spray pipe (23) with the nozzle facing the reducing roller (10).

2. A reducing mill based on a multi-stage continuous calendering process according to claim 1, characterized in that: The adjustment mechanism includes a first rotating cylinder (4) rotatably mounted on the left side of the frame (2), and the output end of the servo motor (3) and the first rotating cylinder (4) are connected by a gear and a gear ring for transmission. The through hole between the first rotating cylinder (4) and the frame (2) is coaxial with the workpiece, and the outer side of the first rotating cylinder (4) is threaded with an adjustment ring (5).

3. A reducing mill based on a multi-stage continuous calendering process according to claim 2, characterized in that: The adjusting ring (5) is uniformly rotatably connected to a connecting rod (6), and the connecting rod (6) is rotatably connected to the slide (7). The outer side of the frame (2) is fixedly installed with a guide rail (8), and the slide (7) and the guide rail (8) are slidably connected.

4. The method for adjusting the diameter reduction of a reducing mill based on a multi-stage continuous calendering process according to claim 3, characterized in that, The specific steps are as follows: S1: According to the required diameter reduction, control the servo motor (3) to drive the first rotating cylinder (4) to rotate, so that the first rotating cylinder (4) drives the adjusting ring (5) to adjust left and right, so that the adjusting ring (5) drives the slide (7) to slide through the connecting rod (6), thereby adjusting the initial position of each diameter reduction roller (10) and introducing the material into the frame (2) to realize the diameter reduction operation; S2: The reduced diameter workpiece will be discharged from the right side of the frame (2). At this time, the workpiece will enter the inner side of the second rotating cylinder (11) and push the detection wheel (14) to make the rotating part (13) rotate elastically. At this time, the rotating part (13) will drive the detection wheel (14) to roll against the outer side of the workpiece under the action of elasticity. At this time, the detection wheel (14) will drive the helical gear (16) to rotate through the transmission action. Then, through the meshing of the helical gear (16) and the helical gear ring (17), the detection mechanism will be driven to rotate. At this time, the detection wheel (14) will roll against the outer wall of the workpiece. S3: When the diameter of the workpiece after reduction does not meet the preset requirements, the detection wheel (14) will drive the rotating part (13) to rotate elastically during the rolling process, thereby changing the force applied by the rotating part (13) to the pressure gauge (18). When the pressure gauge (18) detects the change in pressure, the servo motor (3) is started by the system control, thereby automatically adjusting the position of each reduction roller (10) again, and thus realizing the reduction adjustment without stopping the machine.

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