Bulging machine for corrugated pipe
By designing a corrugated pipe expansion machine that includes components such as an oil storage tank and a delivery pump, precise supply of lubricating oil was achieved, solving the problem of uneven lubricating oil addition, improving processing stability and efficiency, and extending machine life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENYANG HONGQI THERMAL EQUIP MFG CO LTD
- Filing Date
- 2025-04-24
- Publication Date
- 2026-05-01
AI Technical Summary
The existing corrugated tube bulging machine suffers from uneven lubrication during processing, leading to decreased stability and efficiency, as well as problems with excessive or insufficient lubrication.
A corrugated tube expansion machine was designed, comprising components such as an oil storage tank, a delivery pump, a delivery hose, a drip pipe, a support, a feed pipe, a fixing pipe, a pull rod, an electric push rod, a sealing block, a sealing gasket, and a telescopic rod. The machine achieves precise supply of lubricating oil through the cooperation of negative pressure and the sealing block, ensuring quantitative lubrication.
It achieves precise lubrication supply, reduces friction and wear, improves the stability and accuracy of the processing, extends the service life of the machine, and reduces maintenance costs.
Smart Images

Figure CN224181891U_ABST
Abstract
Description
A corrugated pipe bulging machine Technical Field
[0001] This utility model relates to the field of corrugated pipe processing technology, and in particular to a corrugated pipe bulging machine. Background Technology
[0002] A corrugated pipe is a type of metal pipe, typically made of stainless steel, with a corrugated surface. It features high temperature resistance, pressure resistance, and flexibility, and is widely used in exhaust systems and pipe connections in the automotive, aerospace, and petrochemical industries. The corrugated structure of the pipe helps alleviate stress under temperature or pressure changes, improving the stability and reliability of the pipeline.
[0003] A bellows bulging machine is a device used to process metal bellows. It changes the shape and size of metal pipes through pressure and force, and is commonly used in the manufacture of automotive exhaust pipes, pipe fittings, etc. This machine is characterized by high precision and efficiency, and can perform complex shape processing, such as bending, compression, and expansion.
[0004] In the existing technology, the corrugated tube bulging machine requires manual addition of lubricating oil during processing, which leads to uneven lubrication. The amount of lubricating oil added may be excessive or insufficient, which in turn affects the stability and efficiency of the processing. In order to address the above problems, a corrugated tube bulging machine is proposed. Summary of the Invention
[0005] To overcome the above shortcomings, this utility model provides a corrugated tube bulging machine, which aims to improve the problem that in the existing corrugated tube bulging machine, lubricating oil is added manually during the processing, resulting in uneven lubrication, excessive or insufficient lubricating oil, which in turn affects the stability and efficiency of the processing.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a corrugated tube forming machine, comprising a forming machine, an oil storage tank fixedly connected to the left side of the middle part of the forming machine, a conveying pump fixedly connected to the top of the oil storage tank, a conveying hose fixedly connected to the output end of the conveying pump, a dripping tube fixedly connected to one end of the conveying hose, a bracket fixedly connected to the outside of the dripping tube, a first material passage tube slidably connected to one side of the inside of the dripping tube, a second material passage tube slidably connected to the other side of the inside of the dripping tube, a fixing pipe fixedly connected to the outside of the dripping tube, a pull rod slidably connected to the inside of the fixing pipe, an electric push rod fixedly connected to the outside of the pull rod, a sealing block provided at the bottom of both the first and second material passage tubes, a sealing gasket fixedly connected to the top of the sealing block, multiple telescopic rods fixedly connected to the inner top walls of both the first and second material passage tubes, a spring sleeved on the outside of the telescopic rods, and a clamping assembly provided in the middle of the forming machine.
[0007] As a further description of the above technical solution:
[0008] The clamping assembly includes four support rods. A fixed ring is fixedly connected to one side of each of the four support rods, and a sliding ring is slidably connected to the other side of each of the four support rods. A cylinder is provided between the fixed ring and the sliding ring. A sliding rod is slidably connected to all four sides of the inside of the fixed ring. A clamping plate is fixedly connected to one side of the sliding rod, and a first fixed seat is fixedly connected to the other side of the sliding rod. A second fixed seat is fixedly connected to all four sides of the top of the sliding ring, and a connecting rod is provided between the first fixed seat and the second fixed seat.
[0009] As a further description of the above technical solution:
[0010] The bottom of the bracket is fixedly connected to the top of the expansion machine, and the bottom of the telescopic rod is fixedly connected to the top of the sealing gasket.
[0011] As a further description of the above technical solution:
[0012] The bottom of the pull rod is located at the top of the bracket.
[0013] As a further description of the above technical solution:
[0014] The bottom of the electric push rod is fixedly connected to the top of the bracket.
[0015] As a further description of the above technical solution:
[0016] One end of the spring is fixedly connected to the inner top wall of the feed tube, and the other end of the spring is fixedly connected to the top of the sealing gasket.
[0017] As a further description of the above technical solution:
[0018] The cylinder output end is fixedly connected to the top of the sliding ring, and the other end of the cylinder is fixedly connected to the bottom of the fixed ring.
[0019] As a further description of the above technical solution:
[0020] One end of the connecting rod is rotatably connected to the bottom of the first fixed base, and the other end of the connecting rod is rotatably connected to the top of the second fixed base.
[0021] This utility model has the following beneficial effects:
[0022] 1. In this utility model, through the cooperation between the expansion machine, oil storage tank, conveying pump, conveying hose, drip pipe, bracket, material passage pipe one, material passage pipe two, fixed pipe, pull rod, electric push rod, sealing block, sealing gasket, telescopic rod, and spring one, quantitative lubrication is achieved during the processing of corrugated tube expansion machine, ensuring the precise supply of lubricating oil, thereby reducing friction and wear, improving the stability and accuracy of the processing, reducing maintenance costs, and extending the service life of the machine.
[0023] 2. In this utility model, the corrugated pipe is clamped during the operation of the expansion machine by coordinating the expansion machine, support rod, fixing ring, sliding ring, cylinder, slide rod, clamping plate, fixing seat one, fixing seat two, and connecting rod, making the processing process more stable. Attached Figure Description
[0024] Figure 1 is a perspective view of a corrugated tube bulging machine proposed in this utility model;
[0025] Figure 2 is a schematic diagram of the clamping plate of a corrugated pipe forming machine proposed in this utility model;
[0026] Figure 3 is a schematic diagram of the structure of the drip tube of a corrugated tube expansion machine proposed in this utility model;
[0027] Figure 4 is a schematic diagram of the sealing block of a corrugated pipe expansion machine proposed in this utility model.
[0028] Legend:
[0029] 1. Expansion forming machine; 2. Oil storage tank; 3. Conveying pump; 4. Conveying hose; 5. Dropping tube; 6. Support; 7. Feeding pipe one; 8. Feeding pipe two; 9. Fixing pipe; 10. Pull rod; 11. Electric push rod; 12. Sealing block; 13. Sealing gasket; 14. Telescopic rod; 15. Spring one; 16. Support rod; 17. Fixing ring; 18. Sliding ring; 19. Cylinder; 20. Slide rod; 21. Clamping plate; 22. Fixing seat one; 23. Fixing seat two; 24. Connecting rod. Detailed Implementation
[0030] 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.
[0031] Referring to Figures 1, 3, and 4, one embodiment of this utility model is provided: a corrugated tube expansion machine, including an expansion machine 1, an oil storage tank 2 fixedly connected to the left side of the middle of the expansion machine 1, a conveying pump 3 fixedly connected to the top of the oil storage tank 2, a conveying hose 4 fixedly connected to the output end of the conveying pump 3, a dripping tube 5 fixedly connected to one end of the conveying hose 4, a bracket 6 fixedly connected to the outside of the dripping tube 5, a first feeding tube 7 slidably connected to one side of the inside of the dripping tube 5, a second feeding tube 8 slidably connected to the other side of the inside of the dripping tube 5, a fixing tube 9 fixedly connected to the outside of the dripping tube 5, a pull rod 10 slidably connected inside the fixing tube 9, an electric push rod 11 fixedly connected to the outside of the pull rod 10, a sealing block 12 is provided at the bottom of both the first feeding tube 7 and the second feeding tube 8, a sealing gasket 13 is fixedly connected to the top of the sealing block 12, multiple telescopic rods 14 are fixedly connected to the inner top walls of both the first feeding tube 7 and the second feeding tube 8, a spring 15 is sleeved on the outside of the telescopic rods 14, and a clamping assembly is provided in the middle of the expansion machine 1.
[0032] Specifically, the oil storage tank 2 serves to store lubricating oil. When the electric push rod 11 is activated, it moves the pull rod 10 to one side. When the pull rod 10 moves, it draws air out of the drip tube 5 and the fixed tube 9, creating negative pressure. This negative pressure causes the sealing block 12 to move downwards. There are two sealing blocks 12. When one of the sealing blocks 12 moves downwards, lubricating oil flows between the feed pipe 7 and the feed pipe 8. After extraction, the electric push rod 11 moves the pull rod 10 to the other side, simultaneously squeezing the lubricating oil. When the lubricating oil is squeezed, it causes the other sealing block 12 to move downwards, thus achieving precise control of the amount of lubricating oil used. The quantitative lubrication in the expansion machine 1 ensures precise supply of lubricating oil, effectively reducing friction and wear, improving the stability and accuracy of the processing, and also reducing lubricating oil waste, reducing maintenance costs, extending the machine's service life, and improving processing efficiency and product quality.
[0033] Referring to Figures 1-2, the clamping assembly includes four support rods 16. A fixed ring 17 is fixedly connected to one side of the four support rods 16, and a sliding ring 18 is slidably connected to the other side of the four support rods 16. A cylinder 19 is provided between the fixed ring 17 and the sliding ring 18. Sliding rods 20 are slidably connected to all four sides of the inside of the fixed ring 17. A clamping plate 21 is fixedly connected to one side of the sliding rod 20, and a first fixed seat 22 is fixedly connected to the other side of the sliding rod 20. A second fixed seat 23 is fixedly connected to all four sides of the top of the sliding ring 18, and a connecting rod 24 is provided between the first fixed seat 22 and the second fixed seat 23.
[0034] Specifically, the support rod 16 supports the sliding ring 18 and the fixed ring 17. The fixed ring 17 limits the sliding rod 20 and fixes the cylinder 19. The sliding ring 18 drives the connecting rod 24 when driven by the cylinder 19. The cylinder 19 pushes the sliding ring 18, which in turn drives the second fixed seat 23 and the first fixed seat 22 through the connecting rod 24. The sliding rod 20 drives the clamping plate 21 to clamp the bellows. The first fixed seat 22 drives the sliding rod 20 to clamp the bellows through the clamping plate 21. The connecting rod 24 drives the second fixed seat 23. The second fixed seat 23 connects the first fixed seat 22 at one end and the connecting rod 24 at the other end.
[0035] Referring to Figures 2-4, the bottom of the bracket 6 is fixedly connected to the top of the expansion machine 1, the bottom of the telescopic rod 14 is fixedly connected to the top of the sealing gasket 13, the bottom of the pull rod 10 is set on the top of the bracket 6, the bottom of the electric push rod 11 is fixedly connected to the top of the bracket 6, one end of the spring 15 is fixedly connected to the inner top wall of the feed pipe 7, and the other end of the spring 15 is fixedly connected to the top of the sealing gasket 13, the output end of the cylinder 19 is fixedly connected to the top of the sliding ring 18, and the other end of the cylinder 19 is fixedly connected to the bottom of the fixed ring 17, one end of the connecting rod 24 is rotatably connected to the bottom of the fixed seat 22, and the other end of the connecting rod 24 is rotatably connected to the top of the fixed seat 23.
[0036] Specifically, the cylinder 19 is activated to drive the sliding ring 18 to slide. As the sliding ring 18 slides outside the support rod 16, it drives the four connecting rods 24 at its top to move together. Then, the connecting rods 24 drive the second fixed seat 23. Subsequently, the second fixed seat 23 drives the first fixed seat 22. Then, the first fixed seat 22 drives the slide rod 20. The slide rod 20 slides inside the fixed ring 17 and drives the clamping plate 21 to clamp the bellows. The bracket 6 plays a role in fixing the drip tube 5 and supporting and stabilizing the fixed tube 9 and the electric push rod 11. The cooperation between the sealing block 12, the sealing gasket 13, the telescopic rod 14 and the spring 15 plays a quantitative role.
[0037] Working principle: First, the starting cylinder 19 drives the sliding ring 18 to slide. The sliding ring 18 slides outside the support rod 16, and at the same time, the sliding ring 18 drives the connecting rod 24 at its top. Then, the connecting rod 24 drives the second fixed seat 23, and then the second fixed seat 23 drives the first fixed seat 22. Next, the first fixed seat 22 drives the sliding rod 20. The sliding rod 20 slides inside the fixed ring 17 and drives the clamping plate 21 to clamp the bellows. While the expansion machine 1 is processing, when the oil is supplied through the oil storage tank 2, the delivery pump 3 draws the lubricating oil from the oil storage tank 2 through the delivery hose 4, and then delivers it to the drip tube 5 through the delivery hose 4. When it is delivered to the drip tube 5, the electric motor... The push rod 11 operates, driving the pull rod 10 to move to one side. When the pull rod 10 moves, it draws air from the drip tube 5 and the fixed tube 9, creating negative pressure. This negative pressure causes the sealing block 12 to move downwards. There are two sealing blocks 12. When one of the sealing blocks 12 moves downwards, lubricating oil flows between the feed pipe 7 and the feed pipe 8. After extraction, the electric push rod 11 drives the pull rod 10 to move to the other side, simultaneously squeezing the lubricating oil. When the lubricating oil is squeezed, it causes the other sealing block 12 to move downwards, thus achieving the effect of metered delivery of lubricating oil.
[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A corrugated pipe bulging machine, comprising a bulging machine (1), characterized in that: An oil storage tank (2) is fixedly connected to the left side of the middle part of the expansion machine (1). A conveying pump (3) is fixedly connected to the top of the oil storage tank (2). A conveying hose (4) is fixedly connected to the output end of the conveying pump (3). A dripping tube (5) is fixedly connected to one end of the conveying hose (4). A bracket (6) is fixedly connected to the outside of the dripping tube (5). A feed pipe (7) is slidably connected to one side of the inside of the dripping tube (5). A feed pipe (8) is slidably connected to the other side of the inside of the dripping tube (5). A fixing pipe (8) is fixedly connected to the outside of the dripping tube (5). 9) A pull rod (10) is slidably connected inside the fixed tube (9), and an electric push rod (11) is fixedly connected to the outside of the pull rod (10). A sealing block (12) is provided at the bottom of the first material tube (7) and the second material tube (8). A sealing gasket (13) is fixedly connected to the top of the sealing block (12). Multiple telescopic rods (14) are fixedly connected to the inner top walls of the first material tube (7) and the second material tube (8). A spring (15) is sleeved on the outside of the telescopic rod (14). A clamping assembly is provided in the middle of the expansion machine (1).
2. The corrugated tube bulging machine according to claim 1, characterized in that: The clamping assembly includes four support rods (16), a fixed ring (17) is fixedly connected to one side of the four support rods (16), and a sliding ring (18) is slidably connected to the other side of the four support rods (16). A cylinder (19) is provided between the fixed ring (17) and the sliding ring (18). A slide rod (20) is slidably connected to all four sides of the inside of the fixed ring (17). A clamping plate (21) is fixedly connected to one side of the slide rod (20), and a first fixed seat (22) is fixedly connected to the other side of the slide rod (20). A second fixed seat (23) is fixedly connected to all four sides of the top of the sliding ring (18). A connecting rod (24) is provided between the first fixed seat (22) and the second fixed seat (23).
3. The corrugated tube bulging machine according to claim 1, characterized in that: The bottom of the bracket (6) is fixedly connected to the top of the expansion machine (1), and the bottom of the telescopic rod (14) is fixedly connected to the top of the sealing gasket (13).
4. The corrugated tube bulging machine according to claim 1, characterized in that: The bottom of the pull rod (10) is located on the top of the bracket (6).
5. A corrugated tube bulging machine according to claim 1, characterized in that: The bottom of the electric push rod (11) is fixedly connected to the top of the bracket (6).
6. A corrugated tube bulging machine according to claim 1, characterized in that: One end of the spring (15) is fixedly connected to the inner top wall of the feed tube (7), and the other end of the spring (15) is fixedly connected to the top of the sealing gasket (13).
7. A corrugated tube bulging machine according to claim 2, characterized in that: The output end of the cylinder (19) is fixedly connected to the top of the sliding ring (18), and the other end of the cylinder (19) is fixedly connected to the bottom of the fixed ring (17).
8. A corrugated tube bulging machine according to claim 2, characterized in that: One end of the connecting rod (24) is rotatably connected to the bottom of the first fixed seat (22), and the other end of the connecting rod (24) is rotatably connected to the top of the second fixed seat (23).