Pipe bending machine with angle convenient to adjust

By setting a stop and a reset component on the pipe bending machine, the automatic descent of the pipe is achieved by using the reset action of the cylinder, which solves the problem of inconvenient pipe removal in existing pipe bending machines and improves work efficiency.

CN223789293UActive Publication Date: 2026-01-13NANJING ZHUONAI HEAVY MACHINERY MFG CO LTD
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Patent Information

Application Number
CN202520416463.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-11
Publication Date
2026-01-13
Estimated Expiration
2035-03-11

AI Technical Summary

Technical Problem

Existing pipe bending machines are not convenient for automatic removal after pipe bending, resulting in low work efficiency.

Method used

A pipe bending machine with easy angle adjustment was designed. By setting a stop block, a drop groove, an arc groove, a crossbar and a reset component on the operating table, the stop block is moved by the reset action of the cylinder, realizing the automatic drop of the pipe and reducing manual intervention.

Benefits of technology

It improves the working efficiency of pipe bending machines, reduces manual operation, and simplifies the process of pipe removal.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a pipe bender convenient for angle adjustment, which relates to the field of pipe benders, and comprises an operation table, the top of the operation table is provided with a limiting column, one side of the top of the operation table is provided with an air cylinder, the output end of the air cylinder is fixedly provided with a mounting frame, and one side of the mounting frame is movably provided with a roller. A falling groove is formed in the top of the operation table, an arc-shaped groove is formed in the top of the operation table, multiple sets of check blocks are movably installed on the top of the operation table, the height of the tops of the check blocks is the same as that of the top of the operation table, and a fixing rod is fixed to the bottom of the installation frame. According to the pipe bending machine, the problem that a pipeline is inconvenient to take down after being bent by an existing pipe bending machine is solved, the check block is located in the falling groove, so that the pipeline is placed on the check block and cannot fall off, after bending, the air cylinder resets, the check block can move towards one side, the falling groove is opened, the bent pipeline can fall off, and the pipe bending efficiency is improved. And the pipeline does not need to be taken down manually, so that the working efficiency is improved.
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Description

Technical Field

[0001] This utility model relates to the field of pipe bending machines, specifically a pipe bending machine that is easy to adjust the angle. Background Technology

[0002] A pipe bending machine is a device used to bend metal pipes. It uses mechanical means to bend the pipe within a certain radius. By setting the bending angle and radius, it can achieve precise bending of the pipe. Pipe bending machines are widely used in industries such as construction, automobiles, aviation, chemicals, and shipbuilding. They are typically used to manufacture pipes, frames, supports, and other structures. Pipe bending machines can reduce manual labor and improve work efficiency.

[0003] Existing pipe bending machines require manual placement of the pipe in the processing area, followed by cylinder operation to bend the pipe. After bending, the cylinder returns to its original position, and the bent pipe is removed manually. However, this method is cumbersome and reduces work efficiency. Utility Model Content

[0004] Therefore, the purpose of this utility model is to provide a pipe bending machine that is easy to adjust the angle, so as to solve the technical problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a pipe bending machine that facilitates angle adjustment, comprising an operating table, a limit post installed on the top of the operating table, and a cylinder installed on one side of the top of the operating table. The output end of the cylinder is fixed with a mounting bracket, and a roller is movably installed on one side of the mounting bracket. A drop groove is opened on the top of the operating table, and an arc-shaped groove is opened on the top of the operating table. Multiple sets of stops are movably installed on the top of the operating table, and the top of the stops is at the same height as the top of the operating table. A fixing rod is fixed at the bottom of the mounting bracket, a driving crossbar is provided at the bottom of the stops, and a reset component is provided at the end of the crossbar.

[0006] By adopting the above technical solution, the problem of inconvenience in removing pipes after bending by existing pipe bending machines is solved. By using a stop block located inside the drop trough, the pipe will not fall when placed above it. After bending, the cylinder reset stop block will move to one side, the drop trough will open, and the bent pipe will fall down. There is no need for manual removal of the pipe, thus improving work efficiency.

[0007] The present invention is further configured such that the reset assembly includes a transverse block movably mounted on the end of the crossbar, and the crossbar has a movable groove inside, and a second spring is fixed to the inner wall of the movable groove, and a protrusion is fixed to one side of the transverse block.

[0008] Preferably, when the crossbar moves, the protrusion enters the inner wall of the expansion groove. Under the action of the inner wall of the expansion groove, it enters the interior of the guide groove. Then, the protrusion slides on the inner wall of the guide groove, and the protrusion drives the transverse block to slide inside the moving groove. The transverse block squeezes the second spring. At this time, the stop block enters the interior of the sliding groove. The bent pipe falls through the drop groove and the arc groove. When the transverse block is no longer in contact with the fixed rod, the first spring will drive the stop block to reset.

[0009] The present invention is further configured such that the outer wall of the crossbar has a through hole, and the protrusion is configured as a cylinder.

[0010] Preferably, the through-hole allows the protrusion to slide easily inside, and the protrusion on the cylinder can reduce friction during movement.

[0011] The present invention is further configured such that one side of the transverse block is inclined.

[0012] Preferably, the lateral block with an inclined surface can be easily squeezed when the protrusion moves, reducing the friction between the protrusion and the lateral block.

[0013] The present invention is further configured such that a sliding groove is provided on the top of the operating table, and a limit rod is fixed on the inner wall of the sliding groove, and a first spring is sleeved on the outer wall of the limit rod.

[0014] Preferably, the movement direction of the stop block can be limited by the setting limit rod. When the stop block moves, it will squeeze the first spring, and the first spring can drive the stop block to reset.

[0015] The present invention is further configured such that sliders are fixed on both sides of the stop block, and the outer wall of the stop block is in contact with the inner wall of the groove.

[0016] Preferably, the slider can slide on the inner wall of the groove, and the slider can prevent the stop from dislodging from the inner wall of the groove.

[0017] The present invention is further configured such that a limiting hole is provided inside the stop block, and the stop block is sleeved on the outer wall of the limiting rod.

[0018] Preferably, the limiting hole allows the stop block to be fitted onto the outer wall of the limiting rod, thereby limiting the movement direction of the stop block.

[0019] The present invention is further configured such that a baffle is fixed on the top of the operating table, and a limit post is installed on the top of the operating table.

[0020] Preferably, when the pipe is placed above the operating table, the baffle can block the pipe, eliminating the need for personnel to adjust the pipe's position. The set limit post can also facilitate bending of the pipe.

[0021] The present invention is further provided that the bottom of the operating table is provided with an expansion groove and a guide groove, and the two sides of the inner wall of the expansion groove are provided with slopes.

[0022] Preferably, the expansion groove facilitates the entry of the protrusion. Once the protrusion enters the expansion groove, it enters the guide groove under the action of the inner wall of the expansion groove, thereby driving the protrusion to move under the action of the guide groove.

[0023] In summary, the present invention has the following main advantages:

[0024] 1. This utility model solves the problem of inconvenience in removing pipes after bending them using existing pipe bending machines by setting up a stop block, a drop trough, an arc-shaped groove, a crossbar, and a first spring. The stop block is located inside the drop trough, so the pipe will not fall when placed on it. After bending, the cylinder reset stop block will move to one side, the drop trough will open, and the bent pipe will fall down. There is no need for manual removal of the pipe, which improves work efficiency.

[0025] 2. This utility model is equipped with a baffle, a chute, a slider, and a limiting rod. The baffle blocks the end of the pipe, causing the pipe to bend at a designated location without requiring personnel to adjust the pipe's position. The slider and limiting rod limit the movement direction of the baffle, ensuring that the baffle can only slide on the inner wall of the chute. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of this utility model;

[0027] Figure 2 This is a cross-sectional view of the crossbar of this utility model;

[0028] Figure 3 This is a schematic diagram of the bottom structure of the operating table of this utility model;

[0029] Figure 4 This is a schematic diagram showing the connection between the crossbar and the stop block of this utility model.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. Operating table; 2. Cylinder; 3. Mounting bracket; 31. Roller; 32. Fixing rod; 4. Baffle; 5. Drop groove; 51. Arc groove; 6. Limiting post; 7. Stop block; 71. Slider; 72. Limiting hole; 8. Slide groove; 81. Limiting rod; 82. First spring; 9. Crossbar; 91. Moving groove; 92. Through hole; 93. Horizontal block; 94. Protrusion; 95. Second spring; 10. Expansion groove; 11. Guide groove. Detailed Implementation

[0032] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0033] The embodiments of this utility model will be described below based on its overall structure.

[0034] Please see Figures 1-4 The system includes an operating platform 1, with a limit post 6 installed on the top of the operating platform 1. A cylinder 2 is installed on one side of the top of the operating platform 1. The pipe angle is bent by controlling the extension distance of the cylinder 2. A mounting bracket 3 is fixed to the output end of the cylinder 2. A roller 31 is movably installed on one side of the mounting bracket 3. A drop groove 5 is opened on the top of the operating platform 1. An arc groove 51 is opened on the top of the operating platform 1. Multiple sets of stops 7 are movably installed on the top of the operating platform 1. The stops are located inside the drop groove 5, which can prevent the pipe from falling when it is placed above the operating platform 1. The top of the stops 7 is at the same height as the top of the operating platform 1. A fixing rod 32 is fixed to the bottom of the mounting bracket 3. A driving crossbar 9 is provided at the bottom of the stops 7. A reset component is provided at the end of the crossbar 9.

[0035] For details regarding the above embodiments, please refer to [link / reference]. Figure 2 and Figure 4 The reset assembly includes a transverse block 93 movably mounted at the end of the crossbar 9, and a moving groove 91 is provided inside the crossbar 9. A second spring 95 is fixed to the inner wall of the moving groove 91. A protrusion 94 is fixed to one side of the transverse block 93. When the crossbar 9 moves, the protrusion 94 will enter the inner wall of the expansion groove 10. Under the action of the inner wall of the expansion groove 10, it will enter the interior of the guide groove 11. Then the protrusion 94 will slide on the inner wall of the guide groove 11. The protrusion 94 will drive the transverse block 93 to slide inside the moving groove 91. The transverse block 93 squeezes the second spring 95. At this time, the stop block 7 enters the interior of the slide groove 8. The bent pipe falls through the drop groove 5 and the arc groove 51. When the transverse block 93 is not in contact with the fixed rod 32, the first spring 82 will drive the stop block 7 to reset.

[0036] For details regarding the above embodiments, please refer to [link / reference]. Figure 2 The outer wall of the crossbar 9 has a through hole 92, and the protrusion 94 is set as a cylinder. The through hole 92 allows the protrusion 94 to slide inside it easily. The protrusion 94 set as a cylinder can reduce the friction during movement.

[0037] For details regarding the above embodiments, please refer to [link / reference]. Figure 2The transverse block 93 has a sloping side, which allows the protrusion 94 to easily press the transverse block 93 when it moves, thus reducing the friction between the protrusion 94 and the transverse block 93.

[0038] For details regarding the above embodiments, please refer to [link / reference]. Figures 1-3 The top of the operating table 1 is provided with a slide groove 8, and the inner wall of the slide groove 8 is fixed with a limit rod 81. The outer wall of the limit rod 81 is fitted with a first spring 82. The limit rod 81 can limit the movement direction of the stop block 7. When the stop block 7 moves, it will squeeze the first spring, and the first spring can drive the stop block 7 to reset.

[0039] For details regarding the above embodiments, please refer to [link / reference]. Figure 1 and Figure 2 The stop block 7 has sliders 71 fixed on both sides, and the outer wall of the stop block 7 is in contact with the inner wall of the slide groove 8. The sliders 71 can slide on the inner wall of the slide groove 8. The sliders 71 can prevent the stop block 7 from detaching from the inner wall of the slide groove 8.

[0040] For details regarding the above embodiments, please refer to [link / reference]. Figure 1 and Figure 2 The stop block 7 has a limiting hole 72 inside, and the stop block 7 is sleeved on the outer wall of the limiting rod 81. The limiting hole 72 allows the stop block 7 to be sleeved on the outer wall of the limiting rod 81, thereby limiting the movement direction of the stop block 7.

[0041] For details regarding the above embodiments, please refer to [link / reference]. Figure 1 The top of the operating table 1 is fixed with a baffle 4, and the top of the operating table 1 is also equipped with a limit post 6. When the pipe is placed above the operating table 1, the baffle 4 can block the pipe, so that no personnel need to adjust the position of the pipe. The limit post 6 can be used to easily bend the pipe.

[0042] For details regarding the above embodiments, please refer to [link / reference]. Figure 3 and Figure 4 An expansion groove 10 is provided at the bottom of the operating table 1, and a guide groove 11 is provided at the bottom of the operating table 1. The two sides of the inner wall of the expansion groove 10 are inclined. The expansion groove 10 allows the protrusion 94 to enter easily. When the protrusion 94 enters the expansion groove 10, it enters the guide groove 11 under the action of the inner wall of the expansion groove 10, thereby driving the protrusion 94 to move under the action of the guide groove 11.

[0043] In practical operation, the pipe to be bent is placed above the stop block 7 on one side of the limiting post 6, with the end of the pipe contacting the baffle 4. Then, the cylinder 2 is activated, causing the mounting bracket 3 to move. A roller 31 on one side of the mounting bracket 3 contacts the pipe, and then the roller 31 continues to move forward, causing the other side of the pipe to contact the limiting post 6, thus bending the pipe. By controlling the extension length of the cylinder 2, the pipe angle is changed. When the mounting bracket moves, the bottom fixing rod 32 contacts the transverse block 93, pressing against the inclined surface on one side of the transverse block 93. The transverse block 93 slides inside the moving groove 91, pressing the second spring 95 as it slides. When the fixing rod 32 continues to move forward, the second spring 95 causes the transverse block 93 to return to its original position. After the pipe bending is complete, the cylinder 2 causes the mounting bracket 3 to return to its original position. When frame 3 resets, the bottom fixing rod 32 contacts the transverse block 93, which causes the transverse bar 9 to move. When the transverse bar 9 moves, it causes the stop block 7 to move. The stop block 7 slides inside the slide groove 8 and slides on the outer wall of the limit rod 81. When the stop block 7 slides, it will squeeze the first spring 82. When the transverse bar 9 moves, the protrusion 94 will enter the inner wall of the expansion groove 10. Under the action of the inner wall of the expansion groove 10, it will enter the interior of the guide groove 11. Then the protrusion 94 slides on the inner wall of the guide groove 11. The protrusion 94 will cause the transverse block 93 to slide inside the moving groove 91. The transverse block 93 squeezes the second spring 95. At this time, the stop block 7 enters the interior of the slide groove 8. The bent pipe falls through the drop groove 5 and the arc groove 51. When the transverse block 93 is no longer in contact with the fixing rod 32, the first spring 82 will drive the stop block 7 to reset. The above steps are repeated to continue bending the pipe.

[0044] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A pipe bending machine with easily adjustable angle, comprising an operating table (1), characterized in that: The top of the operating table (1) is equipped with a limit post (6), and a cylinder (2) is installed on one side of the top of the operating table (1). The output end of the cylinder (2) is fixed with a mounting bracket (3), and a roller (31) is movably installed on one side of the mounting bracket (3). The top of the operating table (1) is provided with a drop groove (5), and the top of the operating table (1) is provided with an arc groove (51). Multiple sets of stops (7) are movably installed on the top of the operating table (1), and the top of the stops (7) is at the same height as the top of the operating table (1). A fixing rod (32) is fixed at the bottom of the mounting bracket (3). A driving crossbar (9) is provided at the bottom of the stops (7), and a reset component is provided at the end of the crossbar (9).

2. The pipe bending machine with easily adjustable angle according to claim 1, characterized in that: The reset assembly includes a transverse block (93) movably mounted on the end of the crossbar (9), and a moving groove (91) is provided inside the crossbar (9), and a second spring (95) is fixed to the inner wall of the moving groove (91). A protrusion (94) is fixed to one side of the transverse block (93).

3. A pipe bending machine with easily adjustable angle according to claim 2, characterized in that: The outer wall of the crossbar (9) is provided with a through hole (92), and the protrusion (94) is provided as a cylinder.

4. A pipe bending machine with easily adjustable angle according to claim 2, characterized in that: The transverse block (93) has an inclined surface on one side.

5. A pipe bending machine for easy angle adjustment according to claim 1, characterized in that: The top of the operating table (1) is provided with a slide groove (8), and the inner wall of the slide groove (8) is fixed with a limit rod (81), and the outer wall of the limit rod (81) is fitted with a first spring (82).

6. A pipe bending machine for easy angle adjustment according to claim 5, characterized in that: The two sides of the stop (7) are fixed with sliders (71), and the outer wall of the stop (7) is in contact with the inner wall of the groove (8).

7. A pipe bending machine for easy angle adjustment according to claim 6, characterized in that: The stop block (7) has a limiting hole (72) inside, and the stop block (7) is sleeved on the outer wall of the limiting rod (81).

8. A pipe bending machine for easy angle adjustment according to claim 1, characterized in that: The top of the operating table (1) is fixed with a baffle (4), and a limit post (6) is installed on the top of the operating table (1).

9. A pipe bending machine for easy angle adjustment according to claim 1, characterized in that: The bottom of the operating table (1) is provided with an expansion groove (10) and a guide groove (11) is provided at the bottom of the operating table (1). The two sides of the inner wall of the expansion groove (10) are sloped.