Pipe bending machine for metal pipe processing

By designing an independently rotating bending disc and feeding assembly, the problem of traditional pipe bending machines being able to bend only in one direction has been solved, enabling multi-directional bending and efficient processing of metal round pipes, thus improving applicability and precision.

CN224346711UActive Publication Date: 2026-06-12KFSTOM (WUHAN) PRECISION MFG CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
KFSTOM (WUHAN) PRECISION MFG CO LTD
Filing Date
2025-06-10
Publication Date
2026-06-12

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    Figure CN224346711U_ABST
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Abstract

The utility model discloses a kind of pipe bender for metal pipe fitting processing, comprising: support base plate, the top end of support base plate is fixedly connected with support frame, the middle part of one side of support frame and the top end of the other side are all transversely rotatably connected with central shaft rod, the end of two central shaft rods mutually close is all fixedly connected with guide plate, the end of guide plate away from central shaft rod is fixedly connected with bending disc;Two speed reducers, two speed reducers are respectively fixedly connected in the two sides of support frame, and the power output end of two speed reducers is respectively fixedly connected with two central shaft rods, transmission motor is fixedly connected on speed reducer, the utility model relates to metal pipe fitting processing technical field;The utility model is cooperated with the structure of guide plate, bending disc and traction groove, can be independently revolved with two bending discs, can be realized in the case where metal round pipe is not required to be re-clamped, metal round pipe downward or upward bending processing, greatly improve the overall applicability.
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Description

Technical Field

[0001] This utility model relates to the field of metal pipe processing technology, specifically a pipe bending machine for processing metal pipes. Background Technology

[0002] Metal pipes are hollow pipes made of metal or alloy materials. They have the characteristics of high strength, high pressure resistance, and wide temperature range, and are widely used in fluid transportation, structural support and equipment connection.

[0003] Currently, metal pipes can be divided into round and square shapes. Due to the diverse environments in which metal pipes are used, they need to be bent appropriately using a pipe bending machine before installation, according to the application requirements.

[0004] Traditional pipe bending machines typically have two bending discs, one of which is fixed while the other revolves around the fixed disc. The pipe is bent between the two discs. However, the revolving nature of the single bending disc means that the pipe can only be bent in one direction, making it unsuitable for the bending requirements of multi-directional metal pipes.

[0005] Therefore, this utility model provides a pipe bending machine for processing metal pipes to solve the above problems. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a pipe bending machine for processing metal pipes, which solves the aforementioned problems.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a pipe bending machine for processing metal pipe fittings, comprising:

[0008] A supporting base plate is provided, with a supporting frame fixedly connected to the top of the supporting base plate. A central shaft is laterally rotatably connected to the middle of one side and the top of the other side of the supporting frame. A guide plate is fixedly connected to the end of the two central shafts that are close to each other. A bending disc is fixedly connected to the end of the guide plate that is away from the central shaft.

[0009] Two speed reducers are fixedly connected to both sides of the support frame, and the power output ends of the two speed reducers are fixedly connected to two central shafts respectively. A drive motor is fixedly connected to each speed reducer, and the output end of the drive motor is fixedly connected to the power input end of the speed reducer.

[0010] A feeding rack is fixedly connected to the top of the support base plate at the end away from the support frame. A feeding assembly is provided at the top of the feeding rack, which is used to transfer pipe fittings to the bending disc.

[0011] Preferably, the feeding assembly includes:

[0012] A feeding cylinder is fixedly connected to the top of the feeding frame. A notch is opened in the middle of the top of the feeding cylinder, and a positioning seat is fixedly connected to the middle of the bottom of the feeding cylinder.

[0013] A hydraulic cylinder is vertically fixedly connected to the bottom end of a positioning seat. A pusher seat is fixedly connected to the output end of the hydraulic cylinder. A feeding motor is fixedly connected to the top end of the pusher seat. A feeding roller is fixedly connected to the output end of the feeding motor.

[0014] Preferably, the feeding rack is equipped with a cutting-off assembly near the support frame, the cutting-off assembly comprising:

[0015] A support frame is fixedly connected to one end of the feeding frame near the support frame. A cutting shaft is rotatably connected to one end of the support frame, and a cutter and an eccentric plate are fixedly connected to both ends of the cutting shaft, respectively.

[0016] A positioning shaft is fixedly connected to the end of the bearing frame away from the cut-off shaft. An electric push rod is rotatably connected to the outer side of the positioning shaft, and the output end of the electric push rod is also rotatably connected to the end of the eccentric plate away from the cut-off shaft.

[0017] Preferably, the bending disc has a traction groove in the middle, the traction groove is arc-shaped, and the two bending discs fit together.

[0018] Preferably, the inner wall of the feeding cylinder has multiple support grooves, and each support groove is movably connected with an alloy ball bearing.

[0019] Preferably, a linear guide rod is vertically slidably connected to the bottom end of the positioning seat, and the top end of the linear guide rod is fixedly connected to the push seat.

[0020] Preferably, an anti-slip ring is fixedly connected to the outer side of the feeding roller, and the outer side of the anti-slip ring is provided with anti-slip texture.

[0021] Preferably, a stabilizing frame is fixedly connected to one end of the feeding rack, and a receiving plate is fixedly connected to the top of the stabilizing frame.

[0022] Beneficial effects

[0023] This utility model provides a pipe bending machine for processing metal pipe fittings. Compared with the prior art, it has the following advantages:

[0024] This metal pipe bending machine, through the structural cooperation of the guide plate, bending disc and traction groove, can achieve downward or upward bending of metal round pipes without re-clamping them by means of the independent revolution of the two bending discs, which greatly improves the overall applicability.

[0025] This metal pipe bending machine, through the structural coordination of the feeding assembly, can achieve effective transmission of the metal round pipe through the adjustable contact between the feeding roller and the metal round pipe, greatly improving the overall processing efficiency.

[0026] This metal pipe bending machine, through the structural cooperation of the cutting component, can cut off the bent part of long metal round pipes, thereby enabling precise control of material usage and reducing waste. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the entire utility model;

[0028] Figure 2 This is a side view of the present invention;

[0029] Figure 3 This is an assembly diagram of the bending disc of this utility model;

[0030] Figure 4 This is a schematic diagram of the feeding assembly of this utility model;

[0031] Figure 5 This is a schematic diagram of the cutting component of this utility model.

[0032] In the diagram: 1. Support base plate; 2. Support frame; 3. Central shaft; 4. Guide plate; 5. Bending disc; 6. Traction groove; 7. Reducer; 8. Drive motor; 9. Feeding rack; 10. Feeding assembly; 11. Cutting assembly; 12. Feeding cylinder; 13. Notch; 14. Positioning seat; 15. Hydraulic cylinder; 16. Pushing seat; 17. Feeding motor; 18. Feeding roller; 19. Bearing frame; 20. Cutting shaft; 21. Cutter; 22. Eccentric plate; 23. Positioning shaft; 24. Electric push rod. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] Example 1:

[0035] Please see Figure 1-5 A pipe bending machine for processing metal pipe fittings, comprising:

[0036] A support base plate 1 is fixedly connected to the top of the support base plate 1. A central shaft 3 is laterally rotatably connected to the middle of one side and the top of the other side of the support frame 2. A guide plate 4 is fixedly connected to the end of the two central shafts 3 that are close to each other. A bending plate 5 is fixedly connected to the end of the guide plate 4 that is away from the central shaft 3.

[0037] Two reducers 7 are fixedly connected to both sides of the support frame 2, and the power output ends of the two reducers 7 are fixedly connected to the two central shafts 3 respectively. A drive motor 8 is fixedly connected to the reducer 7, and the output end of the drive motor 8 is fixedly connected to the power input end of the reducer 7.

[0038] The feeding rack 9 is fixedly connected to the top of the support base plate 1 at one end away from the support frame 2. The top of the feeding rack 9 is provided with a feeding assembly 10, which is used to transfer the pipe fittings to the bending disc 5.

[0039] In this embodiment, a traction groove 6 is provided in the middle of the bending disc 5. The traction groove 6 is arc-shaped, and the two bending discs 5 fit together. By setting the two traction grooves 6, space can be provided for the insertion of the metal tube when the two bending discs 5 fit together. Moreover, by the structural characteristics of the traction groove 6, it can match the contour of the metal tube to ensure the bending effect of the traction groove 6.

[0040] The feeding assembly 10 includes:

[0041] The feeding cylinder 12 is fixedly connected to the top of the feeding frame 9. A notch 13 is opened in the middle of the top of the feeding cylinder 12, and a positioning seat 14 is fixedly connected to the middle of the bottom of the feeding cylinder 12.

[0042] Hydraulic cylinder 15 is vertically fixedly connected to the bottom end of positioning seat 14. Push seat 16 is fixedly connected to the output end of hydraulic cylinder 15. Feeding motor 17 is fixedly connected to the top end of push seat 16. Feeding roller 18 is fixedly connected to the output end of feeding motor 17.

[0043] In this embodiment, the inner wall of the feeding cylinder 12 is provided with multiple support grooves, and each support groove is movably connected with an alloy ball. By setting the alloy ball, when the metal tube slides inside the feeding assembly 10, the alloy ball can reduce the friction of the metal tube sliding and ensure the transmission efficiency of the metal tube.

[0044] In this embodiment, a linear guide rod is vertically slidably connected to the bottom end of the positioning seat 14, and the top end of the linear guide rod is fixedly connected to the push seat 16. By setting the linear guide rod, the displacement of the push seat 16 can be assisted and supported, ensuring the stability of the displacement of the push seat 16.

[0045] In this embodiment, an anti-slip ring is fixedly connected to the outer side of the feeding roller 18, and anti-slip texture is provided on the outer side of the anti-slip ring. By setting the anti-slip ring, the friction force when the feeding roller 18 contacts the metal tube can be increased, and the feeding roller 18 is prevented from spinning on the surface of the metal tube.

[0046] Example 2:

[0047] Please see Figure 1-5 This embodiment provides a technical solution based on Embodiment 1: a cutting component 11 is assembled on the feeding rack 9 near the support frame 2, and the cutting component 11 includes:

[0048] The support frame 19 is fixedly connected to one end of the feeding frame 9 near the support frame 2. One end of the support frame 19 is rotatably connected to the cutting shaft 20. The two ends of the cutting shaft 20 are respectively fixedly connected to the cutter 21 and the eccentric plate 22.

[0049] The positioning shaft 23 is fixedly connected to the end of the bearing frame 19 away from the cut-off shaft 20. An electric push rod 24 is rotatably connected to the outside of the positioning shaft 23, and the output end of the electric push rod 24 is also rotatably connected to the end of the eccentric plate 22 away from the cut-off shaft 20.

[0050] In this embodiment, a stabilizing frame is fixedly connected to one end of the feeding rack 9, and a receiving plate is fixedly connected to the top of the stabilizing frame. The receiving plate can provide auxiliary support for the metal tube and prevent the metal tube from bending at the working position of the cutter 21.

[0051] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0052] The working principle is as follows: First, the metal tube is inserted into the inside of the feeding cylinder 12, and the hydraulic cylinder 15 is activated to pull the pusher seat 16 downward until the feeding roller 18 is in close contact with the metal tube. Then, the feeding motor 17 is activated to drive the feeding roller 18 to rotate. Since the metal tube is restricted between the feeding cylinder 12 and the feeding roller 18 by the feeding roller 18, when the feeding roller 18 rotates, it can drive the metal tube to slide inside the feeding cylinder 12 until the metal tube passes through the gap between the two traction grooves 6. Then, the hydraulic cylinder 15 is activated to move the feeding roller 18 away from the metal tube.

[0053] When the metal tube needs to be bent upwards, the drive motor 8 corresponding to the lower bending disc 5 is started, and the power of the drive motor 8 is transmitted through the reducer 7, causing the central shaft 3 to drive the guide plate 4 to rotate, so that the lower bending disc 5 rotates along the upper bending disc 5. Since the metal tube is located between the two traction grooves 6, when the lower bending disc 5 rotates, it can bend the metal tube upwards through the contour of the traction groove 6 at the upper bending disc 5.

[0054] When the metal tube needs to be bent downwards, the drive motor 8 corresponding to the upper bending disc 5 is started, driving the upper bending disc 5 to move along the lower bending disc 5, so as to cooperate with the traction groove 6 at the lower bending disc 5 to bend the metal tube downwards.

[0055] The hydraulic cylinder 15 can be activated to pull the feeding roller 18 into close contact with the metal tube, positioning the metal tube inside the feeding cylinder 12. At the same time, the electric push rod 24 is activated, causing the electric push rod 24 to pull the eccentric plate 22. Since the eccentric plate 22 is supported by the cutting shaft 20, it can drive the cutter 21 to rotate through the cutting shaft 20. When the cutter 21 contacts the metal tube, the bent part of the metal tube can be cut off. Then the feeding motor 17 is started to continue feeding material to the bending disc 5.

[0056] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0057] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pipe bending machine for processing metal pipe fittings, characterized in that: include: A support base plate (1) is fixedly connected to the top of the support base plate (1). A central shaft (3) is rotatably connected to the middle of one side and the top of the other side of the support frame (2). A guide plate (4) is fixedly connected to the end of the two central shafts (3) that are close to each other. A bending plate (5) is fixedly connected to the end of the guide plate (4) that is away from the central shaft (3). Two speed reducers (7) are fixedly connected to both sides of the support frame (2), and the power output ends of the two speed reducers (7) are fixedly connected to the two central shafts (3). A transmission motor (8) is fixedly connected to the speed reducer (7), and the output end of the transmission motor (8) is fixedly connected to the power input end of the speed reducer (7). The feeding rack (9) is fixedly connected to the top of the support base plate (1) at one end away from the support frame (2). The top of the feeding rack (9) is provided with a feeding assembly (10), which is used to transfer the pipe fittings to the bending disc (5).

2. The pipe bending machine for processing metal pipe fittings according to claim 1, characterized in that: The feeding assembly (10) includes: Feeding cylinder (12), the feeding cylinder (12) is fixedly connected to the top of the feeding frame (9), the top of the feeding cylinder (12) has a notch (13) in the middle, and the bottom of the feeding cylinder (12) is fixedly connected to a positioning seat (14). A hydraulic cylinder (15) is vertically fixedly connected to the bottom end of a positioning seat (14). A pusher seat (16) is fixedly connected to the output end of the hydraulic cylinder (15). A feeding motor (17) is fixedly connected to the top end of the pusher seat (16). A feeding roller (18) is fixedly connected to the output end of the feeding motor (17).

3. The pipe bending machine for processing metal pipe fittings according to claim 1, characterized in that: The feeding rack (9) is equipped with a cutting component (11) near the support frame (2), the cutting component (11) comprising: The support frame (19) is fixedly connected to one end of the feeding frame (9) near the support frame (2). One end of the support frame (19) is rotatably connected to a cutting shaft (20). Both ends of the cutting shaft (20) are fixedly connected to a cutter (21) and an eccentric plate (22). The positioning shaft (23) is fixedly connected to the end of the support frame (19) away from the cut-off shaft (20). An electric push rod (24) is rotatably connected to the outside of the positioning shaft (23), and the output end of the electric push rod (24) is also rotatably connected to the end of the eccentric plate (22) away from the cut-off shaft (20).

4. A pipe bending machine for processing metal pipe fittings according to claim 1, characterized in that: The bending disc (5) has a traction groove (6) in the middle. The traction groove (6) is arc-shaped and the two bending discs (5) fit together.

5. A pipe bending machine for processing metal pipe fittings according to claim 2, characterized in that: The inner wall of the feeding cylinder (12) has multiple support grooves, and each support groove is movably connected with alloy balls.

6. A pipe bending machine for processing metal pipe fittings according to claim 2, characterized in that: The bottom end of the positioning seat (14) is vertically slidably connected to a linear guide rod, and the top end of the linear guide rod is fixedly connected to the push seat (16).

7. A pipe bending machine for processing metal pipe fittings according to claim 2, characterized in that: An anti-slip ring is fixedly connected to the outer side of the feeding roller (18), and anti-slip texture is provided on the outer side of the anti-slip ring.

8. A pipe bending machine for processing metal pipe fittings according to claim 3, characterized in that: One end of the feeding rack (9) is fixedly connected to a stabilizing frame, and the top of the stabilizing frame is fixedly connected to a receiving plate.