Metal pipe rounding device
By using an electric push rod and a bidirectional screw to adjust the spacing between the horizontal and vertical guide wheels, the problem of cumbersome guide wheel replacement in existing devices is solved, enabling flexible adaptation to metal pipes of different diameters and simplifying operation.
Patent Information
- Application Number
- CN202520263867.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-19
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2035-02-19
AI Technical Summary
The existing metal pipe rounding device is cumbersome to change guide rollers to adapt to pipes of different diameters, which affects production efficiency.
The system uses an electric push rod in conjunction with a sliding plate to adjust the spacing of the horizontal guide wheels, and a bidirectional screw in conjunction with a threaded plate to adjust the spacing of the vertical guide wheels. Automatic adjustment is achieved through a hydraulic rod and a motor, simplifying the operation process.
It enables flexible adaptation to metal tubes of different diameters, simplifies the operation process of the device, and improves the practicality of the circular device.
Smart Images

Figure CN223616492U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rounding technology, specifically a metal tube rounding device. Background Technology
[0002] In order to meet production standards during the metal tube production process, the metal tubes need to be rounded, so a metal tube rounding device is required.
[0003] Chinese patent CN221909170U discloses a metal tube rounding device, comprising a rounding mechanism. The rounding mechanism consists of a first rounding mechanism and a second rounding mechanism. Each of the first and second rounding mechanisms has a mounting frame on its upper side. Multiple sets of guide wheels are mounted on the upper side of the mounting frame. A turntable is located at the bottom of each guide wheel, and a screw is mounted on the upper end of the turntable. An insertion hole is located in the middle of each guide wheel, and a nut is mounted on the upper end of the screw through the insertion hole. A shaft is mounted at the bottom of the turntable, and a gear is mounted on the bottom end of the shaft through the mounting frame. The gears are meshed together, and the bottom end of the gear is mounted on the upper end of a motor. This patent allows for the rounding of different diameter pipes by removing and replacing the guide wheels with matching ones. By replacing different guide wheels, pipes of different diameters can be rounded.
[0004] In the above technical solution, when it is necessary to round pipes of different diameters, all the guide wheels on the device need to be replaced with matching guide wheels. Each guide wheel is fixed by a separate screw and nut, which makes the replacement process cumbersome and delays the rounding process of the metal pipe, resulting in low practicality of the device.
[0005] Based on this, this application proposes a device for rounding metal tubes. Utility Model Content
[0006] To address the aforementioned technical problems, this utility model proposes a metal tube rounding device. This device adjusts the spacing between two rows of horizontal guide wheels using an electric push rod in conjunction with a sliding plate, and adjusts the spacing between two rows of vertical guide wheels using a bidirectional screw in conjunction with a threaded plate, thus accommodating metal tubes of different diameters. The adjustment can be completed using a hydraulic rod, an electric push rod, and a motor, making the device simple to operate and improving its practicality.
[0007] The technical solution to achieve the purpose of this utility model is: a metal tube rounding device, including a base, on which two fixing frames are fixedly connected, and further comprising;
[0008] The slide plate is slidably connected to two fixed frames. Two hydraulic rods are fixedly connected to the two fixed frames. Two slide plates are fixedly connected to the output shafts of the two hydraulic rods. Multiple threaded rods are movably mounted on the two slide plates. Multiple threaded rods are movably mounted on the two fixed frames. Multiple horizontal guide wheels are sleeved on the multiple threaded rods. Multiple nuts are threadedly connected to the multiple threaded rods. A motor is fixedly connected to the fixed frame. Horizontal guide wheels are fixedly connected to the output shaft of the motor.
[0009] Preferably, two electric push rods are fixedly connected to the base, and a movable plate is fixedly connected to the output shaft of the two electric push rods. The movable plate has three sliding grooves.
[0010] Preferably, three bidirectional screws are rotatably connected to the three grooves, and multiple threaded plates are threaded to both ends of the three bidirectional screws.
[0011] Preferably, multiple threaded rods are fixedly connected to the multiple threaded plates, multiple vertical guide wheels are sleeved on the multiple threaded rods, and multiple nuts are threadedly connected to the multiple threaded rods.
[0012] Preferably, the movable plate has a groove, and a worm gear is rotatably connected in the groove.
[0013] Preferably, three worm gears are fixedly connected to the three bidirectional screws respectively, and the worm gears mesh with the worm. A second motor is fixedly connected to the movable plate, and the output shaft of the second motor is fixedly connected to the worm.
[0014] Compared with existing technologies, the significant advantages of this invention are:
[0015] The device adjusts the horizontal guide wheels by using a fixed frame, sliding plate, hydraulic rod, threaded rod one, and horizontal guide wheels in conjunction with the hydraulic rod. The hydraulic rod drives the sliding plate to move, and the horizontal guide wheels on it move accordingly. This ensures that the distance between the horizontal guide wheels on the sliding plate and the horizontal guide wheels on the fixed frame is equal to the diameter of the metal tube, thus completing the adjustment of the horizontal guide wheels. The device further adjusts the vertical guide wheels by using an electric push rod, moving plate, slide groove, double-acting screw, threaded plate, threaded rod two, vertical guide wheels, groove, worm gear, motor two, and worm wheel in conjunction with the electric push rod. Motor two drives the worm gear to rotate, which in turn drives the double-acting screw to rotate, causing the threaded plate to move. This moves the vertical guide wheels, ensuring that the distance between the two vertical guide wheels on the same double-acting screw is equal to the diameter of the metal tube, thus completing the adjustment of the vertical guide wheels. This allows the device to accommodate metal tubes of different diameters. The device is simple to operate, improving its practicality. Attached Figure Description
[0016] The present invention will be further explained below with reference to the accompanying drawings and embodiments:
[0017] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;
[0018] Figure 2 This is a cross-sectional view of the structure of this utility model;
[0019] Figure 3 This is a cross-sectional view of the movable plate in this utility model;
[0020] Figure 4 This is a three-dimensional structural diagram of the fixing frame in this utility model.
[0021] Explanation of reference numerals in the attached figures:
[0022] 1. Base; 2. Fixing frame; 3. Slide plate; 4. Hydraulic rod; 5. Threaded rod one; 6. Horizontal guide wheel; 7. Motor one; 8. Electric push rod; 9. Moving plate; 10. Slide groove; 11. Double-acting screw; 12. Threaded plate; 13. Threaded rod two; 14. Vertical guide wheel; 15. Groove; 16. Worm gear; 17. Motor two; 18. Worm wheel; 19. Nut one; 20. Nut two. Detailed Implementation
[0023] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. 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 protection scope of the present invention.
[0024] This utility model provides an improved device for rounding metal tubes. The technical solution of this utility model is as follows:
[0025] like Figures 1-4 As shown, a metal tube rounding device includes a base 1, on which two fixing brackets 2 are fixedly connected. The cross-section of the fixing brackets 2 is "T" shaped, and the device also includes;
[0026] Two slide plates 3 are slidably connected to two fixed frames 2. Two hydraulic rods 4 are fixed to the two fixed frames 2 by bolts. Two slide plates 3 are fixed to the output shafts of the two hydraulic rods 4 by bolts. Multiple threaded rods 5 are movably installed on the two slide plates 3. The threaded rods 5 are arranged in a linear array on the slide plates 3. Multiple threaded rods 5 are movably installed on the two fixed frames 2. Multiple horizontal guide wheels 6 are sleeved on the multiple threaded rods 5. Multiple nuts 19 are threadedly connected to the multiple threaded rods 5. The threaded rods 5 and nuts 19 make it easy to disassemble and replace the horizontal guide wheels 6. A motor 7 is fixed to the fixed frame 2 by bolts. The output shaft of the motor 7 is fixedly connected to the horizontal guide wheels 6. When the motor 7 is started, its output shaft drives the horizontal guide wheels 6 to rotate, thereby moving the metal tube. The hydraulic rods 4 drive the slide plates 3 to move, and the horizontal guide wheels 6 on them move accordingly. The distance between the horizontal guide wheels 6 on the slide plates 3 and the horizontal guide wheels 6 on the fixed frames 2 is equal to the diameter of the metal tube, thereby completing the adjustment of the horizontal guide wheels 6.
[0027] Furthermore, such as Figures 1-3 As shown, two electric push rods 8 are fixed to the base 1 by bolts. A movable plate 9 is fixed to the output shaft of the two electric push rods 8 by bolts. Three sliding grooves 10 are provided on the movable plate 9, and the sliding grooves 10 are distributed in a linear array on the movable plate 9.
[0028] Furthermore, such as Figure 2 and Figure 3 As shown, three bidirectional screws 11 are rotatably connected in the three grooves 10 respectively. The length of the bidirectional screws 11 is equal to the length of the groove 10. Multiple threaded plates 12 are threaded to both ends of the three bidirectional screws 11 respectively. Two threaded plates 12 are threaded to both ends of one bidirectional screw 11 respectively.
[0029] Furthermore, such as Figures 1-3 As shown, multiple threaded rods 13 are fixedly connected to multiple threaded plates 12 respectively. The threaded rods 13 are perpendicular to the top of the threaded plates 12. Multiple vertical guide wheels 14 are respectively sleeved on the multiple threaded rods 13. Multiple nuts 20 are threadedly connected to the multiple threaded rods 13 respectively. The threaded rods 13 and nuts 20 make it easy to disassemble and replace the vertical guide wheels 14.
[0030] Furthermore, such as Figure 2 and Figure 3 As shown, a groove 15 is provided in the movable plate 9, and a worm gear 16 is rotatably connected in the groove 15. The groove 15 is perpendicular to the slide 10 and is located below the slide 10. The length of the worm gear 16 is equal to the length of the groove 15.
[0031] Furthermore, such as Figures 1-3As shown, three worm gears 18 are fixedly connected to the three bidirectional screws 11 respectively. The two vertical guide wheels 14 on the same bidirectional screw 11 are symmetrical about the worm gears 18. The worm gears 18 mesh with the worm 16. The second motor 17 is fixed to the moving plate 9 by bolts. The output shaft of the second motor 17 is fixed to the worm 16 by a coupling.
[0032] The specific working method is as follows: When the diameter of the metal tube changes, the hydraulic rod 4 is activated, and its output shaft drives the slide plate 3 to move. The horizontal guide wheel 6 on the slide plate 3 moves accordingly, so that the distance between the horizontal guide wheel 6 on the slide plate 3 and the horizontal guide wheel 6 on the fixed frame 2 is equal to the diameter of the metal tube, thereby completing the adjustment of the horizontal guide wheel 6. The motor 17 is then activated, and its output shaft drives the worm gear 16 to rotate. Since the worm wheel 18 meshes with the worm gear 16, the worm wheel 18 begins to rotate, driving the double-acting screw 11 to rotate. Since the threaded plate 12 is threadedly connected to both ends of the double-acting screw 11, the threaded plate 12 also rotates accordingly. The rotation of the bidirectional screw 11 moves the vertical guide wheel 14, making the distance between the two vertical guide wheels 14 on the same bidirectional screw 11 equal to the diameter of the metal tube, thus completing the adjustment of the vertical guide wheel 14. Then, the electric push rod 8 is activated to push the moving plate 9 to move, so that the center point of the two rows of horizontal guide wheels 6 is on the same horizontal line as the center point of the two rows of vertical guide wheels 14. The metal tube is placed on the horizontal guide wheel 6 near the motor 7, and the motor 7 is activated. Its output shaft drives the horizontal guide wheel 6 to rotate, so that the metal tube moves with the rotation of the horizontal guide wheel 6, making the metal tube round.
[0033] The technical means disclosed in this utility model are not limited to those described above, but also include technical solutions composed of equivalent substitutions of the above technical features. Matters not covered in this utility model are common knowledge to those skilled in the art.
Claims
1. A device for rounding a metal tube, comprising a base (1), characterized in that: The base (1) is fixedly connected to two fixing brackets (2), and also includes; The two slide plates (3) are slidably connected to the two fixed frames (2). The two fixed frames (2) are fixedly connected to the two hydraulic rods (4). The output shafts of the two hydraulic rods (4) are fixedly connected to the two slide plates (3). Multiple threaded rods (5) are movably installed on the two slide plates (3). Multiple threaded rods (5) are movably installed on the two fixed frames (2). Multiple horizontal guide wheels (6) are sleeved on the multiple threaded rods (5). Multiple nuts (19) are threadedly connected to the multiple threaded rods (5). A motor (7) is fixedly connected to the fixed frame (2). The output shaft of the motor (7) is fixedly connected to the horizontal guide wheel (6).
2. The metal tube rounding device according to claim 1, characterized in that: Two electric push rods (8) are fixedly connected to the base (1), and a movable plate (9) is fixedly connected to the output shaft of the two electric push rods (8). Three sliding grooves (10) are provided on the movable plate (9).
3. The metal tube rounding device according to claim 2, characterized in that: Three bidirectional screws (11) are rotatably connected in the three grooves (10), and multiple threaded plates (12) are threaded to both ends of the three bidirectional screws (11).
4. The metal tube rounding device according to claim 3, characterized in that: Multiple threaded rods (13) are fixedly connected to the multiple threaded plates (12), and multiple vertical guide wheels (14) are respectively sleeved on the multiple threaded rods (13). Multiple nuts (20) are threadedly connected to the multiple threaded rods (13).
5. A metal tube rounding device according to claim 3, characterized in that: The movable plate (9) has a groove (15) inside, and a worm gear (16) is rotatably connected inside the groove (15).
6. The metal tube rounding device according to claim 5, characterized in that: Three worm gears (18) are fixedly connected to the three bidirectional screws (11), and the worm gears (18) mesh with the worm (16). A second motor (17) is fixedly connected to the moving plate (9), and the output shaft of the second motor (17) is fixedly connected to the worm (16).
Citation Information
Patent Citations
Metal pipe rounding device
CN221909170U