Automatic rolling cutting machine for steel pipe

Abstract

The utility model discloses a kind of automatic pipe rolling cutting machines, the automatic pipe rolling cutting machine includes: rack and sequentially set on rack steel pipe conveying mechanism, steel pipe rotating mechanism, steel pipe cutting mechanism and steel pipe limiting blanking mechanism;Among them, the steel pipe conveying mechanism includes: first rotating motor and conveying wheel, the conveying wheel is rotatably arranged on rack by first rotating motor, and steel pipe can be conveyed towards steel pipe limiting blanking mechanism.This application overcomes the prior art, the device is moved by screw rod drive clamping plate, thereby realizing the conveying of metal pipe, the conveying efficiency is low, and if the cutting length of metal pipe is consistent each time, driving motor is accurately controlled screw rotation, to ensure that the conveying length of metal pipe is consistent each time, it is more complex to use. To provide a kind of automatic pipe rolling cutting machine that can realize the efficient equal-length conveying cutting of metal pipe.

Description

Technical Field

[0001] This utility model relates to the technical field of roll cutting machines, specifically to an automatic roll cutting machine for steel pipes. Background Technology

[0002] Currently, the cutting of long metal tubes into segments is done manually or with semi-automatic equipment. This process is not only inefficient but also time-consuming and labor-intensive, resulting in high worker workload. Therefore, this application proposes a roll cutter to improve upon these technical shortcomings.

[0003] Chinese Patent No. CN202420404314.7 discloses a scratch-free rolling cutter. During operation, the metal tube to be cut is sequentially fitted onto the outside of the support wheel and tension wheel, with the fitted end of the metal tube positioned between two clamping plates. During cutting, the tension wheel expands and presses against the inner wall of the metal tube. Simultaneously, the cutting wheel and auxiliary pressure wheel move to press against the metal tube outside the support wheel, driving the drive shaft to rotate, thus achieving a full-circle cut of the metal tube by the cutting wheel. After cutting, the cutting wheel and auxiliary pressure wheel are moved away from the support wheel, the tension wheel tightens, and the inner wall of the metal tube is relaxed. The two clamping plates of the clamping device move to clamp the outer wall of the metal tube, driving the clamping device to slide along the first slide rail towards the tension wheel, thereby achieving feeding. Then, cutting is performed again, and the cycle repeats.

[0004] The applicant discovered the following technical problems when implementing the above-mentioned technical solution:

[0005] The device uses a lead screw to drive the clamping plate to move, thereby conveying the metal tube. However, the conveying efficiency is low, and if the cutting length of the metal tube is to be consistent each time, the drive motor needs to precisely control the rotation of the lead screw to ensure that the conveying length of the metal tube is consistent each time, making it relatively complicated to use.

[0006] Therefore, providing an automatic steel pipe rolling cutter that can achieve efficient and equal-length conveying and cutting of metal pipes is a problem that this utility model urgently needs to solve. Utility Model Content

[0007] To address the aforementioned technical problems, the purpose of this invention is to overcome the low conveying efficiency of existing devices that use a screw to drive the clamping plate, and the need for precise control of the screw rotation by a drive motor to ensure consistent pipe lengths each time, making the process complex. Therefore, this invention provides an automatic steel pipe rolling cutter that enables efficient, equal-length pipe conveying and cutting.

[0008] To achieve the above objectives, this utility model provides an automatic steel pipe rolling cutter, comprising: a frame and a steel pipe conveying mechanism, a steel pipe rotating mechanism, a steel pipe cutting mechanism, and a steel pipe limiting and unloading mechanism sequentially arranged on the frame; wherein, the steel pipe conveying mechanism comprises: a first rotary motor and a conveying wheel, the conveying wheel being rotatably mounted on the frame via the first rotary motor and capable of conveying steel pipes toward the steel pipe limiting and unloading mechanism; the steel pipe limiting and unloading mechanism comprises: a limiting frame, a first linear motor, and a unloading block, the limiting frame being disposed on one side of the steel pipe cutting mechanism, and the steel pipe conveying mechanism enabling one end of the steel pipe to abut against one side of the limiting frame, the unloading block being retractably mounted on the limiting frame via the first linear motor and capable of ejecting the cut steel pipe.

[0009] Preferably, the limiting frame is mounted on the frame in a manner that allows it to reciprocate toward the steel pipe conveying mechanism via a first driving component.

[0010] Preferably, the first driving component includes: a second rotary motor and a lead screw, a limit slider is provided on the limiting frame, a limiting groove adapted to the limit slider is provided on the frame, the second rotary motor is provided on the frame, and a lead screw is coaxially provided on its output shaft, the lead screw is threaded through the limiting frame and is horizontally rotatably provided on the frame.

[0011] Preferably, the frame is provided with a downward-sloping feeding guide plate located below the feeding block.

[0012] Preferably, the steel pipe conveying mechanism further includes a second linear motor and a pressure roller, wherein the pressure roller is provided below the conveying roller in a way that allows it to be raised and lowered via the second linear motor.

[0013] Preferably, the steel pipe rotating mechanism includes: a first rotating roller, a second rotating roller, and a synchronous rotating assembly. The first rotating roller and the second rotating roller are rotatably arranged at intervals between the steel pipe conveying mechanism and the steel pipe limiting and unloading mechanism through the synchronous rotating assembly. The first rotating roller and the second rotating roller can drive the steel pipe to rotate synchronously.

[0014] Preferably, the synchronous rotation assembly includes: a third rotary motor, a first drive wheel, a first transmission wheel, and a first transmission belt. The first transmission wheel is coaxially arranged at one end of the first rotating roller and one end of the second rotating roller. The third rotary drive motor is mounted on the frame, and the first drive wheel is coaxially arranged at its output end. The first drive wheel is connected to each first transmission wheel through the first transmission belt, so that the third rotary drive motor drives the first rotating roller and the second rotating roller to rotate synchronously.

[0015] Preferably, the first transmission belt is respectively fitted onto each first transmission wheel and the first drive wheel.

[0016] Preferably, there are two first transmission belts. One first transmission belt is respectively fitted onto the first drive wheel and any one of the first transmission wheels at opposite ends, and the other first transmission belt is respectively fitted onto the first drive wheel and another first transmission wheel at opposite ends.

[0017] Preferably, the steel pipe cutting mechanism includes: a rotating frame, a cutting wheel, a third linear motor, and a second drive assembly. The rotating frame is mounted above the steel pipe rotating mechanism, and one end of the rotating frame is hinged to the machine frame. The output end of the third linear motor is hinged to the other end of the rotating frame, and the other end of the third linear motor is hinged to the machine frame. The cutting wheel is rotatably mounted on the rotating frame through the second drive assembly for cutting steel pipes.

[0018] According to the above technical solution, the beneficial effects of this utility model compared with the prior art are as follows: This application starts the first rotary motor to transport the steel pipe towards the limiting frame via the conveying wheel. At the same time, the steel pipe rotating mechanism drives the steel pipe to rotate continuously. When one end of the steel pipe abuts against one side of the limiting frame, the conveying wheel can no longer transport the steel pipe, but still applies force to the steel pipe. However, this force cannot overcome the resistance brought by the limiting frame. Then, the steel pipe cutting mechanism is started to cut the steel pipe. After the cutting is completed, since the force applied by the conveying wheel to the steel pipe is not released, the cut steel pipe will still be pushed against one side of the limiting frame by the steel pipe behind it. Therefore, it is necessary to start the first linear motor to drive the material block to extend so as to push out the cut steel pipe. This device can achieve efficient equal-length conveying and cutting of metal pipes by relying solely on mechanical structure.

[0019] Other features and advantages of this utility model will be described in detail in the following detailed description section; and all parts not covered in this utility model are the same as or can be implemented using existing technology. Attached Figure Description

[0020] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0021] Figure 1 This is a three-dimensional automatic steel pipe rolling cutter provided in a preferred embodiment of the present invention. Figure 1 .

[0022] Figure 2 This is a three-dimensional automatic steel pipe rolling cutter provided in a preferred embodiment of the present invention. Figure 2 .

[0023] Figure 3 This is a three-dimensional automatic steel pipe rolling cutter provided in a preferred embodiment of the present invention. Figure 3 .

[0024] Figure 4 This is a three-dimensional automatic steel pipe rolling cutter provided in a preferred embodiment of the present invention. Figure 4 .

[0025] Figure 5 This is a partial perspective view of an automatic steel pipe rolling cutter provided in a preferred embodiment of this utility model.

[0026] Explanation of reference numerals in the attached drawings: 1-Frame; 101-Limiting chute; 102-Discharge guide plate; 2-Steel pipe conveying mechanism; 201-First rotary motor; 202-Conveying wheel; 203-Second linear motor; 204-Pressure wheel; 3-Steel pipe rotating mechanism; 301-First rotating roller; 302-Second rotating roller; 303-Synchronous rotation assembly; 30301-Third rotary motor; 30302-First drive wheel; 30303-First transmission wheel; 30304-First transmission belt; 304-Cutting groove; 4 - Steel pipe cutting mechanism; 401- Rotating frame; 402- Cutting wheel; 403- Third linear motor; 404- Second drive assembly; 40401- Fourth rotary motor; 40402- Second drive wheel; 40403- Second transmission wheel; 40404- Second transmission belt; 5- Steel pipe limiting and unloading mechanism; 501- Limiting frame; 50101- Limiting slider; 502- First linear motor; 503- Unloading block; 504- First drive assembly; 50401- Second rotary motor; 50402- Lead screw. Detailed Implementation

[0027] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.

[0028] In the description of the embodiments of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationships commonly used when the utility model product is in use. These are merely for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or component 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 the utility model. Furthermore, the terms "first," "second," and "third," etc., are only used for distinguishing descriptions and should not be construed as indicating or implying relative importance. Additionally, the terms "horizontal," "vertical," and "suspended," etc., do not indicate that the component is required to be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0029] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] To further understand the features, technical means, and specific objectives and functions achieved by this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments.

[0031] Reference Figure 1 and Figure 2 An automatic steel pipe rolling cutter includes: a frame 1 and a steel pipe conveying mechanism 2, a steel pipe rotating mechanism 3, a steel pipe cutting mechanism 4, and a steel pipe limiting and unloading mechanism 5 sequentially arranged on the frame 1; wherein, the steel pipe conveying mechanism 2 includes: a first rotary motor 201 and a conveying wheel 202, the conveying wheel 202 being rotatably mounted on the frame 1 via the first rotary motor 201, and capable of conveying steel pipes toward the steel pipe limiting and unloading mechanism 5; the steel pipe limiting and unloading mechanism 5 includes: a limiting frame 501, a first linear motor 502, and a unloading block 503, the limiting frame 501 being arranged on one side of the steel pipe cutting mechanism 4, and the steel pipe conveying mechanism 2 enabling one end of the steel pipe to abut against one side of the limiting frame 501, the unloading block 503 being telescopically mounted on the limiting frame 501 via the first linear motor 502, and capable of ejecting the cut steel pipe.

[0032] This application starts the first rotary motor 201 to transport the steel pipe toward the limiting frame 501 via the conveying wheel 202. At the same time, the steel pipe rotating mechanism 3 drives the steel pipe to rotate continuously. When one end of the steel pipe abuts against one side of the limiting frame 501, the conveying wheel 202 can no longer transport the steel pipe, but still applies force to the steel pipe. However, this force cannot overcome the resistance brought by the limiting frame 501. Then, the steel pipe cutting mechanism 4 is started to cut the steel pipe. After the cutting is completed, since the force applied to the steel pipe by the conveying wheel 202 is not released, the cut steel pipe will still be pushed against one side of the limiting frame 501 by the steel pipe behind it. Therefore, it is necessary to start the first linear motor 502 to drive the feeding block 503 to extend in order to push out the cut steel pipe. This device can achieve efficient and equal-length conveying and cutting of metal pipes by means of only mechanical structure.

[0033] Reference Figure 2 The limiting frame 501 is mounted on the frame 1 and can be reciprocated toward the steel pipe conveying mechanism 2 via the first drive assembly 504.

[0034] This application provides a movable limiting frame 501 so that the user can adjust the position of the limiting frame 501 according to the required length of the steel pipe to be cut.

[0035] Reference Figure 4 and Figure 5 The first drive assembly 504 includes a second rotary motor 50401 and a lead screw 50402. The limiting frame 501 is provided with a limiting slider 50101. The frame 1 is provided with a limiting groove 101 adapted to the limiting slider 50101. The second rotary motor 50401 is mounted on the frame 1, and its output shaft is coaxially mounted with the lead screw 50402. The lead screw 50402 is threaded through the limiting frame 501 and is horizontally rotatably mounted on the frame 1.

[0036] The limiting frame 501 of this application is assembled in the limiting slide groove 101 by the limiting slider 50101. The second rotary motor 50401 is started to drive the lead screw 50402 to rotate, thereby driving the limiting frame 501 to reciprocate along the extension direction of the limiting slide groove 101 and the limiting slider 50101.

[0037] Reference Figure 2 The frame 1 is located below the feeding block 503 and is inclined downward with a feeding guide plate 102.

[0038] This application uses a feeding guide plate 102 to receive the cut steel pipe pushed out by the feeding block 503 and guide it to a location for easy collection by the user.

[0039] Reference Figure 3The steel pipe conveying mechanism 2 further includes a second linear motor 203 and a pressure roller 204. The pressure roller 204 is provided below the conveying roller 202 and can be raised and lowered by the second linear motor 203.

[0040] When one end of the steel pipe abuts against one side of the limit frame 501, the second linear motor 203 is then started to drive the clamping wheel 204 to clamp the lower side of the steel pipe, so as to cooperate with the conveying wheel 202 to clamp the steel pipe. At the same time, the clamping force is controlled so as not to affect the rotation of the steel pipe by the steel pipe rotation mechanism 3, thereby preventing the steel pipe from vibrating during the cutting process and affecting the cutting effect.

[0041] Reference Figure 3 The steel pipe rotating mechanism 3 includes a first rotating roller 301, a second rotating roller 302, and a synchronous rotating component 303. The first rotating roller 301 and the second rotating roller 302 are rotatably arranged at intervals between the steel pipe conveying mechanism 2 and the steel pipe limiting and unloading mechanism 5 through the synchronous rotating component 303. The first rotating roller 301 and the second rotating roller 302 can drive the steel pipe to rotate synchronously.

[0042] This application places the steel pipe between the first rotating roller 301 and the second rotating roller 302, and then starts the synchronous rotation assembly 303 to drive the steel pipe to rotate synchronously. This can be achieved by setting anti-slip textures on the periphery of the first rotating roller 301 and the second rotating roller 302, or by using materials that increase friction, such as rubber sleeves, thereby ensuring that the steel pipe can rotate stably and synchronously with the first rotating roller 301 and the second rotating roller 302.

[0043] Reference Figure 5 The synchronous rotation assembly 303 includes a third rotary motor 30301, a first drive wheel 30302, a first transmission wheel 30303, and a first transmission belt 30304. The first transmission wheel 303 is coaxially arranged at one end of the first rotating roller 301 and one end of the second rotating roller 302. The third rotary drive motor is mounted on the frame 1, and the first drive wheel 30302 is coaxially arranged at its output end. The first drive wheel 30302 is connected to each first transmission wheel 30303 through the first transmission belt 30304, so that the third rotary drive motor drives the first rotating roller 301 and the second rotating roller 302 to rotate synchronously.

[0044] This application starts the third rotary motor 30301 to drive the first drive wheel 30302 to rotate, thereby driving each first transmission wheel 30303 to rotate through the first transmission belt 30304, and then driving the first rotating roller 301 and the second rotating roller 302 to rotate synchronously.

[0045] The first transmission belt 30304 is respectively fitted on each first transmission wheel 30303 and the first drive wheel 30302.

[0046] This application achieves synchronous rotation of the first rotating roller 301 and the second rotating roller 302 by directly mounting the first transmission belt 30304 on each of the first transmission wheel 30303 and the first drive wheel 30302. However, this arrangement may hinder the normal transport of thicker steel pipes by the steel pipe conveying mechanism 2; this embodiment is not shown in the figure.

[0047] Reference Figure 5 There are two first transmission belts 30304. One first transmission belt 30304 is respectively fitted on the first drive wheel 30302 and any one of the first transmission wheels 30303 at its two ends. The other first transmission belt 30304 is respectively fitted on the first drive wheel 30302 and another first transmission wheel 30303 at its two ends.

[0048] This application uses two first transmission belts 30304 to form a "V" shape to avoid the first transmission belts 30304 from obstructing the normal conveying of thicker steel pipes by the steel pipe conveying mechanism 2.

[0049] Reference Figure 2 and Figure 4 The steel pipe cutting mechanism 4 includes a rotating frame 401, a cutting wheel 402, a third linear motor 403, and a second drive assembly 404. The rotating frame 401 is mounted above the steel pipe rotating mechanism 3, and one end of it is hinged to the frame 1. The output end of the third linear motor 403 is hinged to the other end of the rotating frame 401, and the other end of the third linear motor 403 is hinged to the frame 1. The cutting wheel 402 is rotatably mounted on the rotating frame 401 through the second drive assembly 404 for cutting steel pipes.

[0050] The second drive assembly 404 of this application can use a fourth rotary motor 40401 to drive the second drive wheel 40402 to rotate, thereby driving the second transmission wheel 40403 to rotate via the second transmission belt 40404, and then driving the cutting wheel 402 to rotate synchronously. At the same time, the first rotating roller 301 and the second rotating roller 302 are coaxially recessed with cutting grooves 304 to facilitate the cutting wheel 402 to cut the steel pipe. When one end of the steel pipe abuts against one side of the limit frame 501, the third linear motor 403 is started to drive one end of the rotating frame 401 to descend. At the same time, the second drive assembly 404 drives the cutting wheel 402 to rotate to cut the steel pipe. While the cutting wheel 402 cuts the steel pipe, the steel pipe rotating mechanism 3 will drive the steel pipe to rotate continuously, thereby achieving rolling cutting of the steel pipe. This cutting method will not cause the cut end of the steel pipe to be flattened.

[0051] When the device provided by this utility model is in use, the first rotary motor 201 is started to transport the steel pipe toward the limiting frame 501 via the conveying wheel 202. At the same time, the steel pipe rotating mechanism 3 drives the steel pipe to rotate continuously. When one end of the steel pipe abuts against one side of the limiting frame 501, the conveying wheel 202 can no longer transport the steel pipe, but still applies force to the steel pipe. However, this force cannot overcome the resistance brought by the limiting frame 501. Then, the steel pipe cutting mechanism 4 is started to cut the steel pipe. After the cutting is completed, since the force applied to the steel pipe by the conveying wheel 202 is not released, the cut steel pipe will still be pushed against one side of the limiting frame 501 by the steel pipe behind it. Therefore, it is necessary to start the first linear motor 502 to drive the feeding block 503 to extend in order to push out the cut steel pipe. This device can achieve efficient and equal-length conveying and cutting of metal pipes by means of only mechanical structure.

[0052] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0053] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable way without contradiction. In order to avoid unnecessary repetition, this utility model will not describe the various possible combinations separately.

[0054] Furthermore, various different embodiments of this utility model can be combined in any way, as long as they do not violate the spirit of this utility model, they should also be regarded as the content disclosed by this utility model.

Claims

1. An automatic steel pipe rolling cutter, characterized in that, The automatic steel pipe rolling cutter includes: a frame (1) and a steel pipe conveying mechanism (2), a steel pipe rotating mechanism (3), a steel pipe cutting mechanism (4), and a steel pipe limiting and unloading mechanism (5) sequentially arranged on the frame (1); wherein, The steel pipe conveying mechanism (2) includes: a first rotary motor (201) and a conveying wheel (202). The conveying wheel (202) is rotatably mounted on the frame (1) via the first rotary motor (201) and can convey steel pipes toward the steel pipe limiting and unloading mechanism (5). The steel pipe limiting and unloading mechanism (5) includes: a limiting frame (501), a first linear motor (502), and a unloading block (503). The limiting frame (501) is located on one side of the steel pipe cutting mechanism (4), and the steel pipe conveying mechanism (2) enables one end of the steel pipe to abut against one side of the limiting frame (501). The unloading block (503) is telescopically mounted on the limiting frame (501) via the first linear motor (502) and is capable of pushing out the cut steel pipe.

2. The automatic steel pipe rolling cutter according to claim 1, characterized in that, The limiting frame (501) is mounted on the frame (1) and can be reciprocated toward the steel pipe conveying mechanism (2) via the first drive assembly (504).

3. The automatic steel pipe rolling cutter according to claim 2, characterized in that, The first drive assembly (504) includes a second rotary motor (50401) and a lead screw (50402). The limiting frame (501) is provided with a limiting slider (50101). The frame (1) is provided with a limiting groove (101) that is adapted to the limiting slider (50101). The second rotary motor (50401) is mounted on the frame (1), and its output shaft is coaxially provided with a lead screw (50402). The lead screw (50402) is threaded through the limiting frame (501) and is horizontally rotatably mounted on the frame (1).

4. The automatic steel pipe rolling cutter according to claim 1, characterized in that, The frame (1) is located below the feeding block (503) and has a feeding guide plate (102) tilted downwards.

5. The automatic steel pipe rolling cutter according to claim 1, characterized in that, The steel pipe conveying mechanism (2) further includes: a second linear motor (203) and a pressure wheel (204). The pressure wheel (204) is provided below the conveying wheel (202) via the second linear motor (203) in a way that allows it to be raised and lowered.

6. The automatic steel pipe rolling cutter according to claim 1, characterized in that, The steel pipe rotating mechanism (3) includes: a first rotating roller (301), a second rotating roller (302), and a synchronous rotating assembly (303). The first rotating roller (301) and the second rotating roller (302) are rotatably arranged at intervals between the steel pipe conveying mechanism (2) and the steel pipe limiting and unloading mechanism (5) through the synchronous rotating assembly (303). The first rotating roller (301) and the second rotating roller (302) can drive the steel pipe to rotate synchronously.

7. The automatic steel pipe rolling cutter according to claim 6, characterized in that, The synchronous rotation assembly (303) includes: a third rotary motor (30301), a first drive wheel (30302), a first transmission wheel (30303), and a first transmission belt (30304). The first transmission wheel (30303) is coaxially arranged at one end of the first rotating roller (301) and one end of the second rotating roller (302). The third rotary motor is mounted on the frame (1), and the first drive wheel (30302) is coaxially arranged at its output end. The first drive wheel (30302) is connected to each first transmission wheel (30303) through the first transmission belt (30304) so ​​that the first rotating roller (301) and the second rotating roller (302) can be driven to rotate synchronously by the third rotary motor.

8. The automatic steel pipe rolling cutter according to claim 7, characterized in that, The first transmission belt (30304) is respectively fitted on each first transmission wheel (30303) and the first drive wheel (30302).

9. The automatic steel pipe rolling cutter according to claim 7, characterized in that, There are two first transmission belts (30304). One first transmission belt (30304) is respectively fitted on the first drive wheel (30302) and any first transmission wheel (30303) at its two ends, and the other first transmission belt (30304) is respectively fitted on the first drive wheel (30302) and another first transmission wheel (30303) at its two ends.

10. The automatic steel pipe rolling cutter according to claim 1, characterized in that, The steel pipe cutting mechanism (4) includes: a rotating frame (401), a cutting wheel (402), a third linear motor (403), and a second drive assembly (404). The rotating frame (401) is mounted above the steel pipe rotating mechanism (3), and one end of it is hinged to the frame (1). The output end of the third linear motor (403) is hinged to the other end of the rotating frame (401), and the other end of the third linear motor (403) is hinged to the frame (1). The cutting wheel (402) is rotatably mounted on the rotating frame (401) through the second drive assembly (404) for cutting steel pipes.

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