Steel pipe forming machine with baffle structure

Abstract

The present disclosure relates to the technical field of steel pipe processing, and one embodiment of the present disclosure provides a steel pipe forming machine with a baffle structure, which comprises an outer frame and an inner frame, the inner frame is arranged inside the outer frame, a conveying and separating assembly is arranged inside the outer frame, an inner ring frame is fixed inside the outer frame, a shaping assembly is arranged in the inner ring frame, the shaping assembly comprises a rotating frame, the rotating frame is rotationally connected inside the inner ring frame, the rotating frame is a hollow circular structure, a plurality of forming rollers are rotationally connected around the inner surface of the rotating frame, and the forming rollers are distributed in a triangular point position relationship. Through the above technical scheme, the technical problem that the prior art does not have the function of further forming the surface of the formed steel pipe is solved.

Description

Technical Field

[0001] The embodiments disclosed herein relate to the technical field of steel pipe processing, and more specifically, to a steel pipe forming machine with a baffle structure. Background Technology

[0002] In fields such as pipeline engineering, steel structure manufacturing, and machining, the forming quality of steel pipes directly determines their performance and safety stability. As the core equipment for processing steel plates or strips into tubular structures, steel pipe forming machines need to achieve the initial forming of pipes through processes such as rolling and bending. The flatness and smoothness of the pipe surface are crucial to the accuracy of subsequent welding, painting, and assembly.

[0003] Currently, traditional steel pipe forming machines have significant drawbacks, the most prominent being the lack of functionality for further surface treatment of the formed steel pipes. After existing equipment completes the tubular forming of steel pipes, rolling marks, minor protrusions, or localized depressions often remain on the surface, especially in transitional areas where the pipe diameter changes, leading to unevenness. If these surface defects are not addressed, they can result in uneven weld penetration during subsequent welding or inconsistent paint film thickness during coating, affecting the corrosion resistance and structural strength of the steel pipe.

[0004] In applications requiring high precision, such as hydraulic pipelines and precision machinery tubing, surface defects can exacerbate fluid resistance or cause stress concentration, shortening the service life of the steel pipe. To compensate for this deficiency, companies need to configure additional surface treatment equipment, which not only increases production steps and equipment investment but also reduces overall production efficiency due to potential secondary damage during transport. Therefore, developing a steel pipe forming machine with a baffle structure that can further shape the surface of the formed steel pipe has become an urgent need to improve product quality and optimize production processes. Utility Model Content

[0005] To overcome the above-mentioned defects, the embodiments of this disclosure provide a steel pipe forming machine with a baffle structure, which solves the technical problem that the prior art does not have the function of further forming the surface of the formed steel pipe.

[0006] According to one aspect, at least one embodiment of the present disclosure provides a steel pipe forming machine having a baffle structure, comprising: An outer frame and an inner frame, wherein the inner frame is disposed inside the outer frame; A conveying and separating assembly is disposed inside the outer frame; The inner ring frame and the shaping component are provided, wherein the inner ring frame is fixed inside the outer frame and the shaping component is disposed in the inner ring frame; The shaping component includes a rotating frame, which is rotatably connected to the inner ring frame. The rotating frame is a hollow circular structure, and several forming rollers are rotatably connected to the inner surface of the rotating frame. The forming rollers are distributed in a triangular pattern with their points relatively opposite each other.

[0007] As a further technical solution, the forming roller has a two-section structure, with the two ends of the forming roller located on both sides of the rotating frame. An external gear is provided around the outer surface of the rotating frame, and a drive motor is provided at the top of the inner ring frame. A drive gear is provided at the output end of the drive motor.

[0008] As a further technical solution, the conveying and separating assembly includes several supporting conveying wheels, all of which are rotatably connected inside the outer frame. Each pair of conveying wheels is driven to rotate by electricity, and several crossbeams are provided inside the outer frame.

[0009] As a further technical solution, a pair of side rollers are rotatably connected to both ends of the cross frame surface. The side rollers are located at both ends of the support conveyor wheel. Cylinders are provided on both sides of the outer frame, and an inner core clamping frame is provided at the output end of the cylinder.

[0010] As a further technical solution, a pair of hydraulic cylinders are provided at both ends of the top of the outer frame. The output end of the hydraulic cylinder is connected to the inner frame. Several inner core support rollers are rotatably connected inside the inner frame. A steel pipe discharge wheel is provided at one end of the outer frame. The steel pipe discharge wheel is driven to rotate by electricity.

[0011] As a further technical solution, a pair of protective baffles are vertically inserted and connected to both ends of the top of the outer frame.

[0012] As a further technical solution, the inner core clamping frame is entirely C-shaped.

[0013] As a further technical solution, the surfaces of the side rollers are all smooth structural surfaces.

[0014] The beneficial effects of the embodiments disclosed herein are as follows: In this disclosure, the forming assembly solves the problem of incomplete surface treatment after steel pipe forming through a multi-directional rolling design. A rotating frame drives the forming rollers to rotate, and the rollers, with triangularly distributed points, apply pressure evenly from multiple directions. The dual-section structure enhances the contact area with the steel pipe, ensuring a smooth and flat surface and improving roundness accuracy. This design eliminates rolling marks and minor unevenness, providing a good foundation for subsequent welding and painting. It eliminates the need for additional surface treatment equipment, shortens the production process, reduces the risk of secondary damage, and meets the processing requirements of high-precision steel pipes. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.

[0016] Figure 1 This is a schematic diagram of a structure in one embodiment of the present disclosure; Figure 2 This is an isometric drawing of the present disclosure; Figure 3 This is an isometric sectional view of the present disclosure; Figure 4 Appendix to this disclosure Figure 1 Enlarged view of part A in the middle; In the diagram: 1. Outer frame; 2. Inner frame; 3. Inner ring frame; 4. Shaping assembly; 4-1. Rotating frame; 4-2. Forming roller; 4-3. External gear; 4-4. Drive motor; 4-5. Drive gear; 5. Conveying and separating assembly; 5-1. Supporting conveyor wheel; 5-2. Cross frame; 5-3. Side roller; 5-4. Cylinder; 5-5. Inner core clamping frame; 5-6. Hydraulic cylinder; 5-7. Inner core support roller; 5-8. Steel pipe discharge wheel; 6. Protective baffle. Detailed Implementation

[0017] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not intended to limit the scope of the disclosure.

[0018] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0019] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0020] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0021] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0022] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0023] like Figures 1-4 As shown, it illustrates a steel pipe forming machine with a baffle structure according to an embodiment of the present disclosure, comprising: An outer frame 1 and an inner frame 2, wherein the inner frame 2 is disposed inside the outer frame 1; A conveying and separating assembly 5 is disposed inside the outer frame 1; The inner ring frame 3 and the shaping component 4 are provided. The inner ring frame 3 is fixed inside the outer frame 1, and the shaping component 4 is disposed in the inner ring frame 3. The shaping component 4 includes a rotating frame 4-1, which is rotatably mounted inside the inner ring frame 3. The rotating frame 4-1 is a hollow circular structure. Several forming rollers 4-2 are rotatably mounted around the inner surface of the rotating frame 4-1. The forming rollers 4-2 are distributed in a triangular pattern with their points relatively opposite each other. The forming rollers 4-2 have a two-segment structure, with their two ends located on both sides of the rotating frame 4-1. An external gear 4-3 is provided around the outer surface of the rotating frame 4-1. A drive motor 4-4 is provided at the top of the inner ring frame 3, and a drive gear 4-5 is provided at the output end of the drive motor 4-4.

[0024] In some examples, a shaping component 4 is designed to achieve uniform shaping of the outer surface of the steel pipe. The rotating frame 4-1 inside the inner ring frame 3 is mounted on a hollow circular frame via bearings and is concentrically positioned with the inner ring frame 3. Forming rollers 4-2 are evenly distributed around the circumference of the inner surface and are connected by rotating shafts, forming three symmetrical sets of roller pressing units in a triangular configuration. The double-segment structure of each set of forming rollers 4-2 extends to both sides of the rotating frame 4-1, and the roller surface is arc-shaped to fit the outer surface of the steel pipe. An external gear 4-3 around the outer surface of the rotating frame 4-1 is integrally formed with the frame. The drive motor 4-4 at the top of the inner ring frame 3 is fixed by a bracket, and the output drive gear 4-5 meshes with the external gear 4-3 to form a transmission structure.

[0025] During operation, the drive motor 4-4 drives the drive gear 4-5 to rotate, which in turn drives the rotating frame 4-1 to rotate around the axis of the inner ring frame 3 via the external gear 4-3. The forming roller 4-2 rotates synchronously with the rotating frame 4-1, while the steel pipe moves axially. When the forming roller 4-2 contacts the outer surface of the steel pipe, it rotates passively, applying pressure to the outer surface of the steel pipe from multiple circumferential directions. The triangular distribution of the forming roller 4-2 ensures that the steel pipe is subjected to balanced force, avoiding deformation caused by pressure on one side. The dual-section structure allows for simultaneous rolling on both sides of the same position on the steel pipe, improving the shaping effect. The rotational motion of the rotating frame 4-1 causes the forming roller 4-2 to continuously roll along the circumference of the steel pipe, ensuring consistent force on all parts of the outer surface and guaranteeing the accurate roundness of the steel pipe. The transmission between the drive gear 4-5 and the external gear 4-3 ensures that the rotating frame 4-1 rotates smoothly and at a controllable speed, adapting to the shaping needs of steel pipes of different specifications. The passive rotation of forming roller 4-2 reduces friction with the steel pipe surface, preventing scratches on the pipe wall; the arc-shaped roller surface fits tightly against the steel pipe, ensuring uniform pressure transmission and improving shaping accuracy. This component achieves uniform shaping of the outer surface of the steel pipe through a combination of rotating roller pressing and multi-directional force, ensuring that its dimensional accuracy and roundness meet the requirements.

[0026] like Figures 1-4 As shown in the figure, the conveying and separating assembly 5 in this embodiment includes several supporting conveying wheels 5-1, all of which are rotatably connected to the outer frame 1. Each pair of conveying wheels is driven to rotate by electricity. Several crossbeams 5-2 are provided inside the outer frame 1. A pair of side rollers 5-3 are rotatably connected to both ends of the surface of each crossbeam 5-2. The side rollers 5-3 are located at both ends of the supporting conveying wheels 5-1. Cylinders 5-4 are provided on both sides of the outer frame 1. An inner core clamping frame 5-5 is provided at the output end of each cylinder 5-4. A pair of hydraulic cylinders 5-6 are provided at both ends of the top of the outer frame 1. The output ends of the hydraulic cylinders 5-6 are connected to the inner frame 2. Several inner core support rollers 5-7 are rotatably connected inside the inner frame 2. A steel pipe discharge wheel 5-8 is provided at one end of the outer frame 1. The steel pipe discharge wheel 5-8 is driven to rotate by electricity.

[0027] In some examples, to achieve stable conveying of the steel pipe and separation of the inner core, the supporting conveying wheels 5-1 inside the outer frame 1 are horizontally distributed and rotatably connected by bearings. One pair is driven by a motor to rotate, and the surface of the wheel is an arc-shaped groove that fits the outer wall of the steel pipe, serving as support and conveyor. The crossbeams 5-2 inside the outer frame 1 are distributed along the length direction, with side rollers 5-3 symmetrically arranged at both ends of the surface, rotatably connected by shafts, located at both ends of the supporting conveying wheels 5-1, forming lateral guidance to prevent the steel pipe from shifting during conveying. The cylinders 5-4 on both sides of the outer frame 1 are fixed by brackets, and the inner core clamping frame 5-5 at the output end is arc-shaped, clamping the end of the steel pipe's inner core that protrudes. The hydraulic cylinders 5-6 at both ends of the top of the outer frame 1 are connected to the inner frame 2 at their output ends, driving the inner frame 2 to rise and fall. The inner core support rollers 5-7 inside the inner frame 2 are rotatably connected by bearings, corresponding vertically to the supporting conveying wheels 5-1, forming a clamping space. The steel pipe discharge wheel 5-8 at one end of the outer frame 1 is driven by a motor to rotate and is located at the end of the forming process to assist in the discharge of steel pipes.

[0028] During operation, the steel pipe is placed on the support conveyor wheel 5-1. The driven conveyor wheel moves the steel pipe forward, while the side rollers 5-3 restrict the position of the steel pipe from both sides, ensuring a straight conveying path. The hydraulic cylinder 5-6 drives the inner frame 2 to descend, and the inner core support roller 5-7 cooperates with the support conveyor wheel 5-1 to clamp the steel pipe, ensuring its stability during conveying. When it is necessary to separate the inner core, the cylinder 5-4 drives the inner core clamping frame 5-5 to clamp the inner core portion, while the support conveyor wheel 5-1 continues to convey the outer layer of the steel pipe, achieving separation between the inner core and the outer layer. Finally, the steel pipe is output with the assistance of the discharge wheel. The arc-shaped groove of the support conveyor wheel 5-1 ensures stable clamping of the steel pipe, and the lateral guidance of the side roller 5-3 prevents conveying deviation. The cooperation between the inner core support roller 5-7 and the support conveyor wheel 5-1 enhances clamping stability and adapts to steel pipes of different diameters. The arc-shaped design of the inner core clamping frame 5-5 fits tightly with the inner core, ensuring reliable clamping during separation. The lifting and adjusting function of the hydraulic cylinder 5-6 can adapt to the clamping requirements of steel pipes of different thicknesses. This component combines internal and external clamping with power transmission to achieve stable conveying of the steel pipe and separation of the inner core, providing a reliable guarantee for the forming process.

[0029] For example, such as Figure 1 As shown, a pair of protective baffles 6 are vertically inserted and connected to both ends of the top of the outer frame 1.

[0030] In some examples, the protective baffles 6 vertically inserted at both ends of the top of the outer frame 1 provide safety protection during the steel pipe conveying and forming process. The baffles prevent accidental ejection of the steel pipe or flying debris, protecting the safety of operators. Simultaneously, their vertical insertion structure facilitates disassembly and adjustment, allowing for flexible placement according to the steel pipe length without affecting normal equipment operation, forming a safety barrier for the forming area and enhancing operational safety.

[0031] For example, such as Figure 3As shown, the inner core clamping frame 5-5 is C-shaped in all its parts.

[0032] In some examples, the inner core clamping bracket 5-5 has an overall C-shaped structure, which better conforms to the surface of the inner core of the steel pipe. The C-shaped opening facilitates insertion into the steel pipe, and when closed, it can clamp the inner core from multiple directions, enhancing clamping stability. This structure can apply clamping force evenly when separating the inner core, avoiding deformation or slippage of the inner core, ensuring smooth separation of the inner core from the outer steel pipe, and improving separation efficiency and quality.

[0033] For example, such as Figure 1 As shown, the surfaces of the side rollers 5-3 are all smooth structural surfaces.

[0034] In some examples, the side roller 5-3 has a smooth surface, which reduces frictional damage to the steel pipe surface. The smooth surface allows the side roller 5-3 to rotate smoothly along with the steel pipe during guidance, reducing frictional resistance and preventing scratches on the outer wall of the steel pipe. At the same time, the smooth surface does not easily accumulate impurities, facilitating cleaning and maintenance, ensuring a long-term stable guiding effect, guaranteeing smooth steel pipe conveying, and improving forming quality.

[0035] In actual use: the steel pipe is fed in by the support conveyor wheel 5-1, the side rollers 5-3 guide it from both sides to prevent deviation, the hydraulic cylinder 5-6 drives the inner frame 2 to descend, and the inner core support roller 5-7 cooperates with the support conveyor wheel 5-1 to clamp the steel pipe, ensuring smooth conveying. After the steel pipe enters the inner ring frame 3, the drive motor 4-4 drives the rotating frame 4-1 to rotate through the drive gear 4-5. The forming rollers 4-2, distributed at triangular points, rotate with the rotating frame 4-1, and passively rotate to roll and shape the surface of the steel pipe. The double-section structure of the forming rollers 4-2 enhances the shaping effect. When it is necessary to separate the inner core, the cylinder 5-4 pushes the C-shaped inner core clamping frame 5-5 to fix the inner core, and the outer layer of the steel pipe continues to be conveyed to achieve separation. Finally, it is sent out by the steel pipe discharge wheel 5-8. The protective baffle 6 provides safety protection throughout the process to avoid accidents.

[0036] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.

Claims

1. A steel pipe forming machine with a baffle structure, characterized in that, include: An outer frame (1) and an inner frame (2), wherein the inner frame (2) is disposed inside the outer frame (1); A conveying and separating assembly (5) is disposed inside the outer frame (1); The inner ring frame (3) and the shaping component (4) are fixed inside the outer frame (1), and the shaping component (4) is disposed in the inner ring frame (3). The shaping component (4) includes a rotating frame (4-1), which is rotatably mounted inside the inner ring frame (3). The rotating frame (4-1) is a hollow circular structure. Several forming rollers (4-2) are rotatably mounted on the inner surface of the rotating frame (4-1). The forming rollers (4-2) are arranged in a triangular pattern with relatively opposite points.

2. The steel pipe forming machine with a baffle structure according to claim 1, characterized in that, The forming roller (4-2) has a two-section structure. The two ends of the forming roller (4-2) are located on both sides of the rotating frame (4-1). An external gear (4-3) is arranged around the outer surface of the rotating frame (4-1). A drive motor (4-4) is arranged on the top of the inner ring frame (3). A drive gear (4-5) is arranged at the output end of the drive motor (4-4).

3. A steel pipe forming machine with a baffle structure according to claim 1, characterized in that, The conveying and separating assembly (5) includes several supporting conveying wheels (5-1), all of which are rotatably connected to the outer frame (1). Each pair of conveying wheels is driven to rotate by electricity. Several crossbeams (5-2) are provided inside the outer frame (1).

4. A steel pipe forming machine with a baffle structure according to claim 3, characterized in that, A pair of side rollers (5-3) are rotatably connected to both ends of the surface of the cross frame (5-2). The side rollers (5-3) are located at both ends of the support conveyor wheel (5-1). Cylinders (5-4) are provided on both sides of the outer frame (1). An inner core clamping frame (5-5) is provided at the output end of the cylinder (5-4).

5. A steel pipe forming machine with a baffle structure according to claim 4, characterized in that, A pair of hydraulic cylinders (5-6) are provided at both ends of the top of the outer frame (1). The output end of the hydraulic cylinders (5-6) is connected to the inner frame (2). Several inner core support rollers (5-7) are rotatably connected inside the inner frame (2). A steel pipe discharge wheel (5-8) is provided at one end of the outer frame (1). The steel pipe discharge wheel (5-8) is driven to rotate by electricity.

6. A steel pipe forming machine with a baffle structure according to claim 1, characterized in that, The top two ends of the outer frame (1) are each vertically inserted with a pair of protective baffles (6).

7. A steel pipe forming machine with a baffle structure according to claim 4, characterized in that, The inner core clamping frame (5-5) is C-shaped in all its parts.

8. A steel pipe forming machine with a baffle structure according to claim 4, characterized in that, The surfaces of the side rollers (5-3) are all smooth structural surfaces.

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