Round tube flattening and arc-bending forming machine
The design of the round tube flattening and bending forming machine solves the problem of flattening and bending round tubes during the installation of air conditioning pipes, achieving efficient round tube forming processing and ensuring forming quality and stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-21
- Publication Date
- 2026-04-03
AI Technical Summary
Existing technologies make it difficult to flatten and bend round pipes during air conditioning duct installation, leading to installation inconvenience.
A round tube flattening and bending forming machine was designed, which includes a processing table, support legs, bending core, pressing component, forming component and bending component. Through the coordinated work of components such as electric telescopic rod, reduction motor and drive gear, the flattening, shaping and bending operations of round tube are realized.
It achieves efficient flattening and bending of round tubes, ensuring forming quality and stability, and meeting installation requirements.
Smart Images

Figure CN224073141U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of round tube processing, and in particular to a round tube flattening and bending forming machine. Background Technology
[0002] With societal progress, air conditioners have become commonplace in households. An air conditioner typically consists of an outdoor unit and an indoor unit, connected by pipes to transfer refrigerant. During installation, these pipes need to be bent to ensure proper connection. Existing technology publication CN222428957U discloses an air conditioner copper pipe bending and forming device, including a base plate with a metal center fixedly mounted on it. A rubber bending block is fixedly fitted onto the metal center. A sliding block is slidably mounted on the top side of the base plate, and two drive rods are rotatably mounted on the sliding block. Rotating bending blocks are rotatably mounted on the other ends of the two drive rods, and both rotating bending blocks are slidably mounted on the top side of the base plate. However, in actual pipe installation, the pipe needs to be flattened and then bent depending on the installation location, and the existing technology has shortcomings in its application. Utility Model Content
[0003] To solve the above-mentioned technical problems, this utility model provides a round tube flattening and bending forming machine that can flatten and bend tubes, making it easy to process according to actual needs and convenient to use.
[0004] This utility model discloses a round tube flattening and bending forming machine, including a processing table, multiple support legs, a bending core, a pressing component, a forming component, and a bending component. Support legs are installed at the four corners of the bottom of the processing table, with rubber pads at the bottom of the support legs. The pressing component is installed on the left end of the processing table, and the forming component is installed to the right of the pressing component at the top of the processing table. The bending component is installed at the right end of the top of the processing table. The bending core extends into the tube, and one end of the bending core is a chain. The bending core is inserted into the round tube, and the pressing component flattens the round tube. Then, the forming component shapes the tube to ensure its specifications. The flattened round tube is bent by the bending component. The bending core provides internal support to ensure forming quality. After bending, the forming component re-extrudes and shapes the tube, making it convenient to use and meeting processing requirements.
[0005] Preferably, the pressing assembly includes an insert block, multiple support rollers, two electric telescopic rods, and two pressure plates. An insert slot is provided on the left side wall of the processing table, and the insert block is installed in the insert slot. Multiple support rollers are rotatably mounted on the top of the insert block. Electric telescopic rods are installed on the front and rear sides of the top left end of the processing table, and pressure plates are installed on the telescopic ends of the electric telescopic rods. The round tube is placed on top of the support rollers, and the electric telescopic rods are activated to drive the pressure plates to flatten the round tube. The insert block is then pulled out to facilitate the replacement of the support rollers.
[0006] Preferably, the forming assembly includes a forming roller, a geared motor, a mounting frame, a second electric telescopic rod, and an upper forming roller. A rotating groove is provided at the top left end of the processing table, and the forming roller is rotatably installed in the rotating groove. The input end of the forming roller is connected to the output end of the geared motor. The mounting frame is installed at the top of the processing table, and the second electric telescopic rod is installed at the top of the mounting frame. The upper forming roller is installed at the bottom telescopic end of the second electric telescopic rod. The flattened pipe is moved between the forming roller and the upper forming roller. The second electric telescopic rod is started to push the upper forming roller downward. Then, the geared motor is started to drive the forming roller to rotate. During the pipe conveying process, it is pressed and shaped to ensure the shape and specifications.
[0007] Preferably, the bending assembly includes a top roller, a turntable, a support ring, a gear ring, a drive gear, a reducer, a drive motor, a moving roller, and an adjusting component. A top roller is installed on the top right side of the processing table. An annular groove is formed on the top of the processing table, and a support groove is formed at the bottom of the annular groove. The support ring is rotatably installed within the support groove. The turntable rotates within the annular groove, and its bottom is connected to the top of the support ring. A gear ring is installed at the bottom of the turntable. A drive cavity is formed on the right side inside the processing table, and a drive gear is rotatably installed within the drive cavity. The drive gear meshes with the gear ring. The input end of the drive gear is connected to the output end of the reducer, and the input end of the reducer is connected to the output end of the drive motor. A moving roller is installed on the top of the turntable via the adjusting component. After flattening, the bending portion of the tube is placed on the top roller. Then, the drive motor is started, and the drive gear is rotated via the reducer. The drive gear rotates the turntable via the gear ring, and the turntable rotates the moving roller to bend the tube. The bent core supports the inside of the tube, preventing defects.
[0008] Preferably, the adjusting component includes an electric slide rail, an electric slider, a mounting base, and two limit sliders. An adjusting groove is provided on one side of the top of the turntable. The electric slide rail is installed within the adjusting groove, and the electric slider is slidably mounted on the electric slide rail. A mounting base is installed on the top of the electric slider, and a moving roller is rotatably mounted on the top of the mounting base. Guide grooves are symmetrically provided on the top of the turntable about the front and rear of the adjusting groove. Limit sliders are fixedly installed at both the front and rear ends of the mounting base, and these limit sliders slidably mounted within the guide grooves. The electric slide rail and electric slider work together to move the mounting base on the turntable, adjusting its position. When the mounting base moves, it drives the limit sliders to move within the guide grooves, ensuring the connection strength between the mounting base and the turntable and guaranteeing stability.
[0009] Preferably, it also includes a front cover and multiple connecting rods. A placement slot is provided at the front end of the processing table. The front cover is rotatably installed at the front end of the placement slot. A connecting rod is installed between the rear end of the side wall of the mounting frame and the top of the processing table. Opening the front cover allows the bent tube core to be stored in the placement slot for easy use. The connecting rods can increase the connection strength between the mounting frame and the processing table and ensure stability.
[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: the bending core is inserted into the round tube, the round tube is flattened by the pressing component, and then the tube is shaped by the forming component to ensure the shape and specifications. The flattened round tube is bent by the bending component. The bending core can support the inside of the tube to ensure the forming quality. After bending, the tube is extruded and shaped again by the forming component, which is convenient to use and meets the processing requirements. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the structure of this utility model;
[0012] Figure 2 This is a three-dimensional structural diagram of the rear side of this utility model;
[0013] Figure 3 This is a front cross-sectional structural diagram of the present invention;
[0014] Figure 4 This is a schematic diagram of the right-side cross-sectional structure of this utility model;
[0015] Figure 5 This is a schematic diagram of the left-side cross-sectional structure of this utility model;
[0016] The following are labels in the attached diagram: 1. Processing table; 2. Support leg; 3. Insert block; 4. Support roller; 5. Electric telescopic rod; 6. Pressure plate; 7. Forming roller; 8. Gear motor; 9. Mounting frame; 10. Second electric telescopic rod; 11. Upper forming roller; 12. Bending core; 13. Top roller; 14. Turntable; 15. Support ring; 16. Gear ring; 17. Drive gear; 18. Reducer; 19. Drive motor; 20. Electric slide rail; 21. Electric slider; 22. Mounting base; 23. Limit slider; 24. Moving roller; 25. Front cover; 26. Connecting rod. Detailed Implementation
[0017] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.
[0018] like Figures 1 to 5As shown, support legs 2 are installed at the four corners of the bottom of the processing table 1. Rubber pads are provided at the bottom of the support legs 2. The bent pipe core 12 extends into the pipe fitting. One end of the bent pipe core 12 is set as a chain. An insertion slot is opened on the left side wall of the processing table 1. The insertion block 3 is installed in the insertion slot. Multiple support rollers 4 are rotatably installed on the top of the insertion block 3. Electric telescopic rods 5 are installed on the front and rear sides of the top left end of the processing table 1. The telescopic end of the electric telescopic rod 5 is equipped with a pressure plate 6. A rotating groove is opened on the top left end of the processing table 1. The forming roller 7 is rotatably installed in the rotating groove. The input end of the forming roller 7 is connected to the output end of the reduction motor 8. The mounting frame 9 is installed on the top of the processing table 1. A second electric telescopic rod 10 is installed on the top of the mounting frame 9. An upper forming roller 11 is installed at the bottom telescopic end of the second electric telescopic rod 10. A top roller 13 is installed on the top right side of the processing table 1. An annular rotating groove is opened on the top of the processing table 1. A support rotating groove is opened at the bottom of the annular rotating groove. A support rotating ring 15 is rotatably installed in the support rotating groove. The turntable 14 is rotatably located in the annular rotating groove and rotates... The bottom of the turntable 14 is connected to the top of the support ring 15. A gear ring 16 is installed at the bottom of the turntable 14. A drive cavity is opened on the right side inside the processing table 1. A drive gear 17 is rotatably installed in the drive cavity. The drive gear 17 meshes with the gear ring 16. The input end of the drive gear 17 is connected to the output end of the reducer 18. The input end of the reducer 18 is connected to the output end of the drive motor 19. An adjustment groove is opened on one side of the top of the turntable 14. An electric slide rail 20 is installed in the adjustment groove. An electric slider 21 is slidably installed on the electric slide rail 20. A mounting seat 22 is installed on the top of the electric slider 21. A moving roller 24 is rotatably installed on the top of the mounting seat 22. A guide groove is symmetrically opened on the top of the turntable 14 about the front and rear of the adjustment groove. A limit slider 23 is fixedly installed at both ends of the mounting seat 22. The limit slider 23 is slidably installed in the guide groove. A placement groove is opened at the front end of the processing table 1. A front cover 25 is rotatably installed at the front end of the placement groove. A connecting rod 26 is installed between the rear end of the side wall of the mounting bracket 9 and the top of the processing table 1.
[0019] Insert the bent tube core 12 into the round tube, place the round tube on top of the support roller 4, and start the electric telescopic rod 5 to drive the pressure plate 6 to flatten the round tube. Pull out the insert block 3 to facilitate the replacement of the support roller 4. The flattened tube is moved between the forming roller 7 and the upper forming roller 11. Start the second electric telescopic rod 10 to push the upper forming roller 11 downward. Then start the reduction motor 8 to drive the forming roller 7 to rotate. During the tube conveying process, it is pressed and shaped to ensure the shape and specifications. After flattening, the bent part of the tube is placed at the top roller 13. Then start the drive motor 19 to drive the drive gear 17 to rotate through the reducer 18. The drive gear 17 drives the toothed ring 16 to rotate. The rotating turntable 14 drives the moving roller 24 to bend the pipe fitting. The bending core 12 supports the inside of the pipe fitting to avoid defects. The electric slide rail 20 and electric slider 21 work together to move the mounting seat 22 on the turntable 14 to adjust the position of the mounting seat 22. When the mounting seat 22 moves, it drives the limit slider 23 to move in the guide groove to ensure the connection strength between the mounting seat 22 and the turntable 14 and ensure stability. Opening the front cover 25 can store the bending core 12 in the placement slot for easy use. The connecting rod 26 can increase the connection strength between the mounting frame 9 and the processing table 1 and ensure stability.
[0020] like Figures 1 to 5 As shown, this utility model discloses a round tube flattening and bending forming machine. During operation, the bending core 12 is placed inside the round tube, which is then placed on top of the support roller 4. The electric telescopic rod 5 is activated to drive the pressure plate 6 to flatten the round tube. The flattened tube is moved between the forming roller 7 and the upper forming roller 11. The second electric telescopic rod 10 is activated to push the upper forming roller 11 downwards. Then, the reduction motor 8 is activated to drive the forming roller 7 to rotate. During the tube conveying process, the tube is pressed and shaped. After flattening, the bent portion of the tube is placed on the top roller. At position 13, the drive motor 19 is started, which drives the drive gear 17 to rotate through the reducer 18. The drive gear 17 drives the turntable 14 to rotate through the gear ring 16. The turntable 14 drives the moving roller 24 to rotate to bend the pipe. The bent pipe core 12 supports the inside of the pipe to avoid defects. The electric slide rail 20 and the electric slider 21 work together to move the mounting base 22 on the turntable 14. The position of the mounting base 22 is adjusted. The front cover 25 can be opened to store the bent pipe core 12 in the placement slot for easy use.
[0021] The reduction motor 8, reducer 18, drive motor 19, electric slide rail 20, and electric slider 21 of the round tube flattening and bending forming machine of this utility model are commercially available. Technical personnel in this industry only need to install and operate them according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.
[0022] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. A round tube flattening and bending forming machine, characterized in that, It includes a processing table (1), multiple legs (2), a bent tube core (12), a pressing component, a forming component and a bending component. The processing table (1) has legs (2) installed at the four corners of the bottom. The bottom of the legs (2) is provided with rubber pads. The pressing component is installed on the left side of the processing table (1). The forming component is installed on the right side of the pressing component at the top of the processing table (1). The bending component is installed on the right side of the top of the processing table (1). The bent tube core (12) extends into the pipe. One end of the bent tube core (12) is set as a chain.
2. The round tube flattening and bending forming machine as described in claim 1, characterized in that, The pressing assembly includes a plug (3), multiple support rollers (4), two electric telescopic rods (5) and two pressure plates (6). The processing table (1) has a slot on the left side wall, the plug (3) is installed in the slot, and multiple support rollers (4) are rotatably installed on the top of the plug (3). Electric telescopic rods (5) are installed on the front and rear sides of the top left end of the processing table (1), and pressure plates (6) are installed on the telescopic ends of the electric telescopic rods (5).
3. The round tube flattening and bending forming machine as described in claim 1, characterized in that, The molding assembly includes a molding roller (7), a geared motor (8), a mounting frame (9), a second electric telescopic rod (10), and an upper molding roller (11). A rotating groove is provided at the top left end of the processing table (1). The molding roller (7) is rotatably installed in the rotating groove. The input end of the molding roller (7) is connected to the output end of the geared motor (8). The mounting frame (9) is installed at the top of the processing table (1). The second electric telescopic rod (10) is installed at the top of the mounting frame (9). The upper molding roller (11) is installed at the bottom telescopic end of the second electric telescopic rod (10).
4. The round tube flattening and bending forming machine as described in claim 1, characterized in that, The bending assembly includes a top roller (13), a turntable (14), a support ring (15), a gear ring (16), a drive gear (17), a reducer (18), a drive motor (19), a moving roller (24), and an adjusting component. The top roller (13) is installed on the top right side of the processing table (1). An annular groove is opened on the top of the processing table (1), and a support groove is opened at the bottom of the annular groove. The support ring (15) is rotatably installed in the support groove, and the turntable (14) is rotatably located in the annular groove. The bottom of the turntable (14) is connected to the top of the support ring (15). A toothed ring (16) is installed at the bottom of the turntable (14). A drive cavity is opened on the right side inside the processing table (1). The drive gear (17) is rotatably installed in the drive cavity. The drive gear (17) meshes with the toothed ring (16). The input end of the drive gear (17) is connected to the output end of the reducer (18). The input end of the reducer (18) is connected to the output end of the drive motor (19). A moving roller (24) is installed on the top of the turntable (14) through an adjustment component.
5. A round tube flattening and bending forming machine as described in claim 4, characterized in that, The adjustment components include an electric slide rail (20), an electric slider (21), a mounting base (22), and two limit sliders (23). An adjustment groove is provided on one side of the top of the turntable (14). The electric slide rail (20) is installed in the adjustment groove. The electric slider (21) is slidably installed on the electric slide rail (20). The mounting base (22) is installed on the top of the electric slider (21). The moving roller (24) is rotatably installed on the top of the mounting base (22). The top of the turntable (14) is symmetrically provided with guide grooves about the front and back of the adjustment groove. Limit sliders (23) are fixedly installed at both ends of the mounting base (22). The limit sliders (23) are slidably installed in the guide grooves.
6. The round tube flattening and bending forming machine as described in claim 3, characterized in that, It also includes a front cover (25) and multiple connecting rods (26). The front end of the processing table (1) has a placement slot, and the front cover (25) is rotatably installed at the front end of the placement slot. A connecting rod (26) is installed between the rear end of the side wall of the mounting bracket (9) and the top of the processing table (1).
Citation Information
Patent Citations
Air conditioner copper pipe bending forming device
CN222428957U