A continuous cutting device for square metal tubes
By designing a continuous cutting device for metal square tubes, and utilizing the coordinated work of the conveyor line and the cutting components, the problem of requiring manual position adjustment in existing technologies has been solved, achieving automated continuous cutting and improving processing efficiency and stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU HUAZHEN MASCH ELECTRIC APPLIANCE CO LTD
- Filing Date
- 2025-06-18
- Publication Date
- 2026-06-09
AI Technical Summary
Existing metal square tube cutting equipment cannot achieve continuous automated conveying and cutting, requiring manual adjustment of position, which affects processing efficiency and increases labor costs.
Design a continuous cutting device for metal square tubes, which adopts a conveyor line and a cutting assembly. Automatic positioning and conveying of metal square tubes are achieved through screws, lead screws and electric push rods. Continuous cutting is achieved by combining the collaborative work of the drive assembly and the cutting blade.
It enables automatic and continuous conveying and cutting of metal square tubes, improving processing efficiency, reducing labor costs, and ensuring the stability and precision of cutting.
Smart Images

Figure CN224333541U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of metal square tube processing technology, specifically a continuous cutting device for metal square tubes. Background Technology
[0002] Square tube is a hollow, square-section, lightweight, thin-walled steel pipe, also known as cold-formed steel profile. Square tubes are used in construction, machinery manufacturing, steel construction and other projects.
[0003] A search revealed a high-efficiency metal square and rectangular tube cutting device (publication number CN 216298136 U). The device includes a worktable, a cutting mechanism, and a fixing mechanism. Two sets of fixing mechanisms are symmetrically installed on the worktable about the cutting mechanism. Each fixing mechanism includes a fixed clamping plate assembly, a movable clamping plate assembly, and a drive structure. The drive structure is rotatably connected to the movable clamping plate assembly. A sliding limit assembly is provided between the fixed and movable clamping plate assemblies. The drive structure includes a threaded slide rod and a rotating sleeve. The threaded slide rod is threadedly connected to the worktable and slidably connected to the rotating sleeve. A connecting assembly is provided between the rotating sleeve and the worktable. A power assembly is installed at the bottom of the worktable, with both ends connected to the two sets of rotating sleeves via lower and upper bevel gears. In this invention, the power assembly simultaneously drives the rotating sleeves on both sides, causing the movable clamping plate assembly to move towards the fixed clamping plate assembly, employing mechanical clamping for greater efficiency.
[0004] However, the above-mentioned device still has some shortcomings in its use. The device cannot achieve continuous automated conveying and cutting of metal square tubes. After one cut is completed, the position of the square tube needs to be manually readjusted before the next cut is carried out. This affects the overall processing efficiency to a certain extent and increases the production cycle and labor costs. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides a continuous metal square tube cutting device, which solves the problem of the inability to achieve continuous automated conveying and cutting of metal square tubes. After completing one cut, the position of the square tube needs to be manually readjusted before the next cut, which to some extent affects the overall processing efficiency and increases the production cycle and labor costs.
[0006] This utility model provides the following technical solution: a continuous cutting device for metal square tubes, including a conveyor line. Two fixed frames are fixedly connected to the upper surface of the conveyor line. Threaded holes are opened on the upper surface of both fixed frames. Screws are threaded into the interior of both threaded holes. Mounting plates are rotatably installed at the bottom ends of both screws. Conveying rollers are rotatably installed on the lower surfaces of both mounting plates. Threaded grooves are opened on both sides of one of the fixed frames. Lead screws are threaded into the interior of both threaded grooves. Connecting plates are rotatably installed at opposite ends of both lead screws.
[0007] One end of the conveyor line is fixedly connected to a support frame, and an electric push rod is fixedly connected to the upper surface of the support frame. The output end of the electric push rod extends to the bottom of the support frame and is equipped with a cutting component.
[0008] Preferred technical solution 1: The cutting assembly includes a protective cover fixedly connected to the output end of the electric push rod, a cutting blade is rotatably installed between the two inner side walls of the protective cover, a drive motor is fixedly connected to the side of the protective cover, and the output end of the drive motor passes through the connected protective cover and is fixedly connected to the cutting blade.
[0009] Preferred technical solution 2: Each of the connecting plates has a groove on its side, and a row of conveying rollers is rotatably installed between the top and bottom walls of each groove.
[0010] Preferred technical solution 3: A set of limiting holes is provided on the upper surface of both fixing frames, and a limiting rod is slidably sleeved inside each limiting hole. Each set of limiting rods is fixedly connected to the corresponding mounting plate.
[0011] Preferred technical solution four: Both sides of the other fixing frame are provided with through holes, and a connecting rod is slidably sleeved inside each of the two through holes. The two connecting rods are respectively fixedly connected to the two connecting plates.
[0012] Preferred technical solution five: The conveyor line is provided with a driving component, the conveyor line is driven by the driving component, and a collection box is placed at one end of the conveyor line, the collection box being located below the support frame.
[0013] Compared with the prior art, this utility model provides a continuous metal square tube cutting device with the following advantages: In use, the metal square tube to be cut is placed on the conveyor line. Then, by rotating the screw, the mounting plate is moved downwards, causing the conveyor rollers on the mounting plate to contact the upper surface of the metal square tube for initial positioning. Next, by rotating two lead screws, two connecting plates are brought closer together, causing the conveyor rollers on the connecting plates to contact the two sides of the metal square tube for further positioning. Then, the conveyor line is driven by the drive assembly to transport the metal square tube. When the cutting point of the metal square tube reaches below the cutting assembly, the transport stops. An electric push rod drives the protective cover and cutting blade to descend and contact the metal square tube. Simultaneously, the drive motor drives the cutting blade to rotate and cut the metal square tube. The cut metal square tube falls into the collection box, and the cutting assembly returns to its original position. The transport of the metal square tube continues for the next cut, achieving continuous cutting. This device can automatically and continuously transport and cut metal square tubes while ensuring stability during transport, preventing deviation and guaranteeing the cutting effect. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model;
[0015] Figure 2 This is an exploded view of the structure of the two fixing brackets and two connecting plates of this utility model;
[0016] Figure 3 This is a schematic diagram of the support frame and cutting assembly structure of this utility model.
[0017] In the diagram: 1. Conveyor line; 2. Fixing frame; 3. Threaded hole; 4. Screw; 5. Mounting plate; 6. Conveyor roller; 7. Threaded groove; 8. Lead screw; 9. Connecting plate; 10. Collection box; 11. Support frame; 12. Electric push rod; 13. Protective cover; 14. Cutting disc; 15. Drive motor; 16. Conveyor roller; 17. Limiting hole; 18. Limiting rod; 19. Through hole; 20. Connecting rod. Detailed Implementation
[0018] Please see Figure 1-3 ,
[0019] Example 1: A continuous cutting device for metal square tubes includes a conveyor line 1. Two fixed frames 2 are fixedly connected to the upper surface of the conveyor line 1. Threaded holes 3 are opened on the upper surface of both fixed frames 2. Screws 4 are threaded into the interior of both threaded holes 3. Mounting plates 5 are rotatably installed at the bottom ends of both screws 4. Conveying rollers 6 are rotatably installed on the lower surfaces of both mounting plates 5. Threaded grooves 7 are opened on both sides of one of the fixed frames 2. Lead screws 8 are threaded into the interior of both threaded grooves 7. Connecting plates 9 are rotatably installed at opposite ends of both lead screws 8.
[0020] One end of the conveyor line 1 is fixedly connected to a support frame 11, and an electric push rod 12 is fixedly connected to the upper surface of the support frame 11. The output end of the electric push rod 12 extends to the bottom of the support frame 11 and is equipped with a cutting component.
[0021] Example 2: The difference between this example and Example 1 is that the cutting assembly includes a protective cover 13 fixedly connected to the output end of the electric push rod 12. A cutting blade 14 is rotatably installed between the two inner side walls of the protective cover 13. A drive motor 15 is fixedly connected to the side of the protective cover 13. The output end of the drive motor 15 passes through the connected protective cover 13 and is fixedly connected to the cutting blade 14, which facilitates continuous cutting of the metal square tube.
[0022] Example 3: The difference between this example and Example 1 is that each connecting plate 9 has a groove on its side, and a row of conveying rollers 16 are rotatably installed between the top and bottom walls of each groove to facilitate the limited conveying of the metal square tube.
[0023] Example 4: The difference between this example and Example 1 is that each of the two fixed frames 2 has a set of limiting holes 17 on its upper surface. Each limiting hole 17 has a limiting rod 18 slidably fitted inside it. Each set of limiting rods 18 is fixedly connected to the corresponding mounting plate 5, which facilitates the restriction of the descent and ascent of the mounting plate 5.
[0024] Example 5: The difference between this example and Example 1 is that, in this example, the other fixing frame 2 has through holes 19 on both sides, and connecting rods 20 are slidably sleeved inside the two through holes 19. The two connecting rods 20 are fixedly connected to the two connecting plates 9 respectively, so as to restrict the movement of the connecting plates 9.
[0025] Example 6: The difference between this example and Example 1 is that a driving component is provided on the conveyor line 1, the conveyor line 1 is driven by the driving component, and a collection box 21 is placed at one end of the conveyor line 1. The collection box 21 is located below the support frame 11 to facilitate the collection of the cut square tubes.
[0026] In summary, the continuous metal square tube cutting device, including the conveyor line 1 and the drive assembly, are all existing technologies with many commercially available products, so they will not be described in detail here. During operation, the metal square tube to be cut is placed on the conveyor line 1. Then, rotating the screw 4 moves the mounting plate 5 downwards, causing the conveyor rollers 6 on the mounting plate 5 to contact the upper surface of the metal square tube for initial positioning. Next, rotating the two lead screws 8 moves the two connecting plates 9 closer together, causing the conveyor rollers 16 on the connecting plates 9 to contact the two sides of the metal square tube for further positioning. Finally, the drive assembly drives the conveyor line 1. The metal square tube is conveyed, and the conveying stops when the cutting point of the metal square tube is conveyed to the bottom of the cutting component. The electric push rod 12 drives the protective cover 13 and the cutting blade 14 to descend and contact the metal square tube. At the same time, the drive motor 15 drives the cutting blade 14 to rotate and cut the metal square tube. The cut metal square tube falls into the collection box 10. At the same time, the cutting component returns to its original position and then continues to convey the metal square tube for the next cut, realizing continuous cutting. When in use, the device can automatically and continuously convey and cut the metal square tube while ensuring its stability during conveying, so that it will not deviate and ensure the cutting effect.
Claims
1. A continuous cutting device for metal square tubes, comprising a conveyor line (1), characterized in that: The upper surface of the conveyor line (1) is fixedly connected to two fixed frames (2). The upper surface of the two fixed frames (2) is provided with threaded holes (3). The inside of the two threaded holes (3) is threaded with screws (4). The bottom end of the two screws (4) is rotatably mounted with mounting plates (5). The lower surface of the two mounting plates (5) is rotatably mounted with conveying rollers (6). The two sides of one of the fixed frames (2) are provided with threaded grooves (7). The inside of the two threaded grooves (7) is threaded with lead screws (8). The opposite ends of the two lead screws (8) are rotatably mounted with connecting plates (9). One end of the conveyor line (1) is fixedly connected to a support frame (11), and an electric push rod (12) is fixedly connected to the upper surface of the support frame (11). The output end of the electric push rod (12) extends to the bottom of the support frame (11) and is equipped with a cutting component.
2. The continuous cutting device for metal square tubes according to claim 1, characterized in that: The cutting assembly includes a protective cover (13) fixedly connected to the output end of the electric push rod (12). A cutting blade (14) is rotatably mounted between the two inner side walls of the protective cover (13). A drive motor (15) is fixedly connected to the side of the protective cover (13). The output end of the drive motor (15) passes through the connected protective cover (13) and is fixedly connected to the cutting blade (14).
3. The continuous cutting device for metal square tubes according to claim 2, characterized in that: Each of the connecting plates (9) has a groove on its side, and a row of conveying rollers (16) is rotatably installed between the top and bottom walls of each groove.
4. The continuous cutting device for metal square tubes according to claim 3, characterized in that: Both of the fixing frames (2) have a set of limiting holes (17) on their upper surfaces. Each limiting hole (17) has a limiting rod (18) slidably fitted inside it. Each set of limiting rods (18) is fixedly connected to the corresponding mounting plate (5).
5. A continuous cutting device for metal square tubes according to claim 4, characterized in that: The other fixing frame (2) has through holes (19) on both sides. Connecting rods (20) are slidably sleeved inside the two through holes (19). The two connecting rods (20) are fixedly connected to the two connecting plates (9) respectively.
6. The continuous cutting device for metal square tubes according to claim 5, characterized in that: The conveyor line (1) is equipped with a drive assembly, which drives the conveyor line (1). A collection box (10) is placed at one end of the conveyor line (1), and the collection box (10) is located below the support frame (11).