Full-automatic hydraulic round pipe shrinking machine

The fully automatic hydraulic tube shrinking machine, by combining a support, anti-bending rollers and a diameter reduction device, solves the problems of low efficiency and insufficient precision in traditional tube shrinking, and achieves efficient and precise tube shrinking operations.

CN223775837UActive Publication Date: 2026-01-09SHANDONG DAJIN STEEL PIPE MFG CO LTD
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Patent Information

Application Number
CN202423152778.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-20
Publication Date
2026-01-09
Estimated Expiration
2034-12-20

AI Technical Summary

Technical Problem

Traditional methods for reducing round tubes are inefficient and cannot guarantee dimensional accuracy and aesthetic shape.

Method used

A fully automatic hydraulic round pipe shrinking machine was designed, comprising a support, anti-bending rollers, a diameter reduction device, and a hydraulic system. The automatic diameter reduction of steel pipes is achieved through a sliding device, and the combination of anti-bending rollers and diameter reduction blocks improves processing accuracy and efficiency.

Benefits of technology

It enables efficient and precise tube shrinking operations, reducing equipment manufacturing costs and the probability of mechanical damage.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of seamless steel pipe machining, and particularly relates to a full-automatic hydraulic round pipe shrinking machine which comprises a support B, a bottom support fixedly installed between the support B and a steel pipe moving roller fixedly installed between the support B, and a bottom support fixedly installed on the support B and the lower end face together. A round groove used for containing a steel pipe is formed between the support B and the support B, landing gears are fixedly installed on the two sides, a center shaft is fixedly installed between the landing gears installed on the two sides, the center shaft is sleeved with an anti-bending roller, and a diameter reducing device is fixedly installed on the side, close to the steel pipe, of the support B. The anti-bending roller is matched with the hole shrinkage device, so that a complicated mechanical structure is not needed when the hole shrinkage device is used for hole shrinkage operation, the manufacturing cost of the device is saved through the simple arrangement, and the damage probability is reduced.
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Description

Technical Field

[0001] This utility model relates to the field of seamless steel pipe processing technology, specifically a fully automatic hydraulic round pipe shrinking machine. Background Technology

[0002] In industries such as construction, automobile manufacturing, and air conditioning duct installation, the reduction of round pipes is essential. Traditional reduction methods mainly rely on manual hammering or shaping by hand after heating with a flame. These methods are not only inefficient but also cannot guarantee the dimensional accuracy and aesthetic appearance of the reduced pipe. Therefore, there is an urgent need in the market for equipment that can efficiently and accurately complete the reduction of pipes. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a fully automatic hydraulic round tube shrinking machine, which solves the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a fully automatic hydraulic round tube shrinking machine, comprising a support B and a bracket, a bottom support fixedly installed between the support B and the bracket, a steel pipe moving roller fixedly installed between the support B and the bracket, a bottom bracket fixedly installed on the lower end face of the support B and the bracket, a circular groove for placing the steel pipe provided between the support B and the bracket, lifting frames fixedly installed on both sides of the bracket, a central shaft fixedly installed between the lifting frames on both sides, an anti-bending roller sleeved on the central shaft, and a diameter reduction device fixedly installed on the side of the support B near the steel pipe.

[0005] As a preferred embodiment of this utility model, the steel pipe moving roller is installed at the bottom of the circular groove.

[0006] As a preferred technical solution of this utility model, a sliding device is provided between the reducing device and the bracket B, the reducing device can reciprocate on the sliding device, and a reducing block is installed on the side of the reducing device close to the steel pipe.

[0007] As a preferred embodiment of this utility model, a groove is fixedly installed on the side of the landing gear near the support. One end of a pulling rod is slidably connected to the upper end of the groove. A hydraulic cylinder is fixedly installed on the other end of the pulling rod. A support rod is also fixedly installed on one side of the hydraulic cylinder. The support rod is fixedly installed on the side of the support.

[0008] Compared with the prior art, the present invention has the following beneficial effects:

[0009] 1. This utility model, by setting up an anti-bending roller in conjunction with a diameter reduction device, eliminates the need for complex mechanical structures when performing diameter reduction operations. This simple setup saves on manufacturing costs and reduces the probability of damage. Attached Figure Description

[0010] Figure 1 This is a perspective view of the present utility model;

[0011] Figure 2 for Figure 1 Enlarged view of point A;

[0012] Figure 3 This is a front view of the present utility model;

[0013] Figure 4 for Figure 3 Sectional view along the AA direction.

[0014] In the diagram: 1. Steel pipe; 2. Support frame; 3. Anti-bending roller; 4. Landing gear; 5. Bottom support frame; 6. Support frame B; 7. Bottom support; 8. Groove; 9. Diameter reduction device; 10. Diameter reduction block; 11. Hydraulic cylinder; 12. Pull rod; 13. Support rod; 14. Central shaft; 15. Steel pipe moving roller. Detailed Implementation

[0015] 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. Example

[0016] Please see Figure 1-4 This utility model provides the following technical solution: a fully automatic hydraulic round tube shrinking machine, including a support B6 and a support 2. A bottom support 7 is fixedly installed between the support B6 and the support 2. A steel pipe moving roller 15 is also fixedly installed between the support B6 and the support 2. A bottom support 5 is fixedly installed on the lower end face of the support B6 and the support 2. A circular groove for placing the steel pipe 1 is provided between the support B6 and the support 2. A lifting frame 4 is fixedly installed on both sides of the support 2. A central shaft 14 is fixedly installed between the lifting frames 4 installed on both sides. An anti-bending roller 3 is sleeved on the central shaft 14. A diameter reduction device 9 is fixedly installed on the side of the support B6 near the steel pipe 1. The steel pipe moving roller 15 is installed at the bottom of the circular groove. A groove 8 is fixedly installed on the side of the lifting frame 4 near the support 2. One end of a pulling rod 12 is slidably connected to the upper end face of the groove 8. A hydraulic cylinder 11 is fixedly installed on the other end of the pulling rod 12. A support rod 13 is also fixedly installed on one side of the hydraulic cylinder 11. The support rod 13 is fixedly installed on the side of the support 2.

[0017] In this embodiment, bracket B6 and bracket 2 are arranged parallel and spaced apart, with a bottom support 7 fixedly installed between them to ensure the stability of the entire equipment. A steel pipe moving roller 15 is also fixedly installed between bracket B6 and bracket 2 to facilitate the smooth movement of the steel pipe 1 during processing. A bottom bracket 5 is fixedly installed on the lower end face of bracket B6 and bracket 2, serving as the load-bearing foundation for the entire equipment. A circular groove for placing the steel pipe 1 is provided between bracket B6 and bracket 2. The size of this circular groove can be adjusted according to the diameter of the steel pipe to be processed, to accommodate different specifications of steel pipes. A central shaft 14 is fixedly installed between the lifting frames 4, and anti-bending rollers 3 are sleeved on the central shaft 14. These anti-bending rollers not only provide additional support during the movement of the steel pipe, preventing it from bending and deforming due to gravity, but also reduce the frictional resistance between the steel pipe and the roller through rotation, further improving the processing efficiency of the equipment. The diameter reduction device 9 can replace different diameter reduction blocks 10 to meet different steel pipe diameter reduction requirements.

[0018] Specifically, a sliding device is provided between the reducing device 9 and the support B6, and the reducing device 9 can reciprocate on the sliding device. A reducing block 10 is installed on the side of the reducing device 9 near the steel pipe 1.

[0019] In this embodiment, the sliding device specifically consists of a sliding groove at the bottom of the necking device 9 and two sliding bars installed on the bracket B6. The necking operation is completed through the reciprocating motion of the necking device 9.

[0020] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the 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 this utility model should be included within the protection scope of this utility model.

Claims

1. A fully automatic hydraulic round tube shrinking machine, comprising a support B (6) and a support (2), characterized in that: A bottom support (7) is fixedly installed between the bracket B (6) and the bracket (2). A steel pipe moving roller (15) is also fixedly installed between the bracket B (6) and the bracket (2). A bottom support (5) is fixedly installed on the lower end face of the bracket B (6) and the bracket (2). A circular groove for placing the steel pipe (1) is provided between the bracket B (6) and the bracket (2). A landing gear (4) is fixedly installed on both sides of the bracket (2). A central shaft (14) is fixedly installed between the landing gears (4) installed on both sides. An anti-bending roller (3) is sleeved on the central shaft (14). A diameter reduction device (9) is fixedly installed on the side of the bracket B (6) near the steel pipe (1).

2. The fully automatic hydraulic round tube shrinking machine according to claim 1, characterized in that: The steel pipe moving roller (15) is installed at the bottom of the circular groove.

3. The fully automatic hydraulic round tube shrinking machine according to claim 1, characterized in that: A sliding device is provided between the reducing device (9) and the support B (6). The reducing device (9) can reciprocate on the sliding device. A reducing block (10) is installed on the side of the reducing device (9) near the steel pipe (1).

4. The fully automatic hydraulic round tube shrinking machine according to claim 1, characterized in that: The landing gear (4) has a groove (8) fixedly installed on one side near the support (2). One end of a pull rod (12) is slidably connected to the upper surface of the groove (8). A hydraulic cylinder (11) is fixedly installed on the other end of the pull rod (12). A support rod (13) is also fixedly installed on one side of the hydraulic cylinder (11). The support rod (13) is fixedly installed on the side of the support (2).