Pipe cutting device and using method

Abstract

The invention provides a pipe cutting device and a using method. The pipe cutting device comprises a supporting table. The pipe restraining mechanisms are arranged in the linear direction, each pipe restraining mechanism comprises a first supporting roller, a second supporting roller and an extrusion roller, the first supporting rollers and the second supporting rollers are rotatably connected to the supporting table, and the extrusion rollers are rotatably and relatively movably connected to the supporting table; the cutting blade is connected to the supporting table in a rotatable and relatively movable mode. The using method comprises the steps that a pipe is placed on the first supporting roller and the second supporting roller, and the pipe is restrained and driven to rotate through joint cooperation of the extrusion rollers; and the pipe driven to rotate is annularly cut through the cutting blade. The large-diameter pipe cutting device has the beneficial effects that the adaptability to pipes with different diameters is improved, and the cutting efficiency of large-diameter pipes is improved by adopting the cutting mode that pipe rotation and cutting blades cooperate.

Description

Technical Field

[0001] This invention belongs to the field of pipe cutting technology, and in particular relates to a pipe cutting device and its usage method. Background Technology

[0002] In existing technologies, fixed-size clamps are typically used to hold the pipe to be cut, which is difficult to adapt to the cutting needs of pipes with different diameters and has poor versatility. When the outer diameter of the pipe is large, it is difficult to cut the pipe in one go due to the limited diameter of the cutting blade. There are technical problems such as poor versatility caused by difficulty in adapting to pipes with different diameters and the inability to cut large-diameter pipes in one go. Summary of the Invention

[0003] To solve the above-mentioned technical problems, the present invention provides a pipe cutting device and a method of use, which is particularly suitable for the rapid cutting of pipes of different diameters and specifications.

[0004] The technical solution adopted in this invention is as follows: a pipe cutting device, including a support platform; multiple sets of pipe constraint mechanisms arranged along a straight direction, each set of pipe constraint mechanisms including a first support roller, a second support roller, a pressing roller for cooperating in constraining and driving the pipe to be cut to rotate, and a first adjustment component for adjusting the pressing roller, the first support roller and the second support roller are rotatably connected to the support platform, and the pressing roller is rotatably and relatively movable to the support platform through the first adjustment component; a cutting mechanism, including a cutting blade and a second adjustment component, the cutting blade being rotatably and relatively movable to the support platform through the second adjustment component.

[0005] Furthermore, the shafts of the first support roller, the second support roller, and the extrusion roller are arranged parallel to each other.

[0006] Furthermore, the axes of rotation of the multiple first support rollers are collinear, and / or the axes of rotation of the multiple second support rollers are collinear.

[0007] Furthermore, the pipe cutting device also includes a drive system, which includes a first drive mechanism connected to the support platform, the first drive mechanism being configured to drive at least two first support rollers to rotate synchronously.

[0008] Furthermore, the drive system also includes a first synchronous pulley, a second synchronous pulley, and a synchronous belt. The first drive mechanism includes multiple motors connected to the support platform. The output ends of the multiple motors are connected to their respective first synchronous pulleys via drive shafts. The rotating shafts of at least two first support rollers are respectively connected to their corresponding second synchronous pulleys. The second synchronous pulleys are connected to their corresponding first synchronous pulleys via synchronous belt drives.

[0009] Furthermore, the first adjustment assembly includes a first bracket connected to the support platform, a first telescopic part connected to the first bracket, and a first mounting frame connected to the first telescopic part, with the extrusion roller rotatably connected to the first mounting frame.

[0010] Furthermore, the second adjustment assembly includes a second bracket connected to the support platform, a second telescopic part connected to the second bracket, a second mounting bracket connected to the second telescopic part, and a second drive motor connected to the second mounting bracket, the second drive motor being connected to the cutting blade.

[0011] Furthermore, it also includes a protective plate, which is movably connected to the support platform.

[0012] Furthermore, the protective panel is equipped with an observation window.

[0013] On the other hand, the present invention also provides a method of using a pipe cutting device, comprising the following steps:

[0014] The pipe to be cut is placed on the first and second support rollers of the multiple sets of pipe constraint mechanisms;

[0015] The extrusion roller is moved by the first adjustment component until it contacts the tube to be cut.

[0016] The cutting blade is moved by the second adjustment component until it contacts the pipe to be cut.

[0017] The first support roller is driven to rotate, thereby causing the pipe to be cut, the second support roller, and the extrusion roller to rotate synchronously, and the pipe to be cut is circumferentially cut by the cutting blade.

[0018] The advantages and positive effects of this invention are as follows: by adopting the above technical solution, the adaptability to pipes of different diameters is improved; by adopting a cutting method that combines pipe rotation with cutting blade coordination, the cutting efficiency of large-diameter pipes is improved; it has the advantages of high cutting efficiency and strong versatility. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of one embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of the pipe restraint mechanism and the cutting mechanism at one angle in one embodiment of the present invention;

[0021] Figure 3 This is a schematic diagram of the pipe restraint mechanism and the cutting mechanism from another angle in one embodiment of the present invention;

[0022] Figure 4 This is a schematic diagram of the structure of the first mounting bracket in one embodiment of the present invention;

[0023] Figure 5This is a schematic diagram of the structure of the second mounting bracket in one embodiment of the present invention;

[0024] In the picture:

[0025] 1. Support platform; 2. Mounting platform; 3. Support roller positioning seat; 5. First bracket; 6. First electric push rod; 7. First mounting frame; 8. Extrusion roller; 9. Cutting mechanism; 10. Bidirectional motor; 11. Drive shaft; 12. First synchronous pulley; 13. Second synchronous pulley; 14. Synchronous belt; 15. Protective mechanism; 16. Second bracket; 17. Second electric push rod; 18. Second mounting frame; 19. Second drive motor; 20. Cutting disc; 21. Suspension hinge; 22. Protective plate; 23. Tempered glass; 24. Support leg; 25. Moving wheel; 26. Control panel; 27. Reinforcing seat; 41. First support roller; 42. Second support roller. Detailed Implementation

[0026] The embodiments of the present invention will now be described with reference to the accompanying drawings. The described embodiments are only some embodiments of the invention, and not all embodiments.

[0027] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar units or units having the same or similar functions throughout.

[0028] The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention. In the description of the present invention, it should be understood that terms such as "installation," "connection," and "fixing" should be interpreted broadly, and can refer to direct connection, installation, or fixing, or indirect connection, installation, or fixing. The present invention does not impose any limitations in this regard.

[0029] like Figures 1 to 5This illustration shows an embodiment of a pipe cutting device according to the present invention, including a support platform 1; multiple sets of pipe constraint mechanisms arranged in a straight line and spaced apart, each set of pipe constraint mechanisms including a first support roller 41, a second support roller 42, a pressing roller 8 for cooperating in constraining and driving the pipe to be cut to rotate, and a first adjustment component for adjusting the pressing roller 8. The first support roller 41 and the second support roller 42 are rotatably connected to the support platform 1, and the pressing roller 8 is rotatably and relatively movable to the support platform 1 through the first adjustment component, and the pressing roller 8 is disposed above the first support roller 41 and the second support roller 42; and a cutting mechanism 9, which includes a cutting blade 20 and a second adjustment component, the cutting blade 20 being rotatably and relatively movable to the support platform 1 through the second adjustment component. In this embodiment, the first support roller 41 is configured to be actively driven to rotate. The pipe to be cut is supported by the first support roller 41 and the second support roller 42, and constrained by the adjustable extrusion roller 8. This system can adapt to the cutting needs of pipes with different diameters and has strong versatility. By controlling the rotation of the first support roller 41 to drive the pipe to rotate during the cutting process, the cutting blade 20 can continuously cut the pipe in the circumference. Especially for large-diameter pipes, the cutting blade 20 does not need to have a size exceeding the pipe radius to effectively cut in one go, which reduces the difficulty and cost of equipment manufacturing and improves the cutting capability of large-size pipes.

[0030] The rotating shafts of the first support roller 41, the second support roller 42, and the extrusion roller 8 are arranged parallel to each other. By setting the rotating shafts of the first support roller 41, the second support roller 42, and the extrusion roller 8 to be parallel to each other, the contact lines between each roller and the pipe are aligned, ensuring the straightness and stability of the pipe during support, fixing, and rotation. This effectively reduces the possibility of pipe slippage or jamming due to uneven force, laying the foundation for smooth rotary cutting.

[0031] In different embodiments, the rotation axes of the multiple first support rollers 41 are collinear, or the rotation axes of the multiple second support rollers 42 are collinear. Preferably, in this embodiment, the rotation axes of the multiple first support rollers 41 are collinear, and the rotation axes of the multiple second support rollers 42 are collinear. It should be understood that the collinearity of the rotation axes of the multiple support rollers means that the independent rotation center lines (axes) of the corresponding support rollers are located on the same straight line in space, not that the multiple support rollers are limited to being installed on the same physical shaft, but rather that it refers to the spatial positional relationship of their respective shafts. By setting the rotation axes of the corresponding support rollers to be collinear, coaxial support and drive are formed for the pipe. This significantly reduces the bending stress and vibration of the pipe caused by misalignment due to multiple supports, thereby improving the flatness and cutting quality of the circumferential cut end.

[0032] The pipe cutting device also includes a drive system, which comprises a first drive mechanism connected to the support platform 1. The first drive mechanism is configured to drive at least two first support rollers 41 to rotate synchronously. The first drive mechanism enables active driving of the first support rollers 41, allowing the device to actively and controllably drive the pipe to rotate, cooperating with the cutting blade 20 to complete circumferential cutting. This effectively avoids the inefficiencies, poor safety, and uneven cutting associated with manually rotating the pipe, achieving mechanization and automation of pipe cutting. The synchronous rotation of at least two first support rollers 41 also improves operational stability.

[0033] The drive system also includes a first synchronous pulley 12, a second synchronous pulley 13, and a synchronous belt 14. The first drive mechanism includes multiple motors connected to the support platform 1. The output ends of the multiple motors are connected to their respective first synchronous pulleys 12 via drive shafts 11. The rotating shafts of at least two first support rollers 41 are respectively connected to their corresponding second synchronous pulleys 13. The second synchronous pulleys 13 and their corresponding first synchronous pulleys 12 are connected by a synchronous belt 14. By using multiple motors combined with a synchronous belt 14 drive structure, at least two first support rollers 41 can be driven efficiently and reliably by a single power source to achieve strictly synchronous rotation. The structure is compact and cost-controllable, ensuring uniform transmission of driving force, reducing the risk of pipe twisting or slipping during rotation, and improving the stability and reliability of the cutting process.

[0034] The first adjustment assembly includes a first bracket 5 connected to the support platform 1, a first telescopic part connected to the first bracket 5, and a first mounting frame 7 connected to the first telescopic part. The extrusion roller 8 is rotatably connected to the first mounting frame 7. The first telescopic part enables precise control of the height of the extrusion roller 8, improving the adaptability and control of the clamping force for pipes of different diameters.

[0035] The second adjustment assembly includes a second bracket 16 connected to the support platform 1, a second telescopic part connected to the second bracket 16, a second mounting bracket 18 connected to the second telescopic part, and a second drive motor 19 connected to the second mounting bracket 18. The second drive motor 19 is connected to the cutting blade 20. The second telescopic part allows for flexible adjustment of the cutting depth and position of the cutting blade 20 according to the pipe diameter and cutting requirements, improving cutting accuracy and adaptability. Preferably, the first telescopic part is made from a pre-made first electric push rod 6, and the second telescopic part is made from a pre-made second electric push rod 17.

[0036] The pipe cutting device also includes a protective mechanism 15, which includes a protective plate 22 connected to the support platform 1. The protective plate 22 effectively blocks flying debris and sparks during the cutting process, reducing the safety risks to the operator. In this embodiment, the protective plate is rotatably connected to the support platform 1; in other embodiments, the protective plate may also be detachably connected to the support platform 1.

[0037] The protective plate 22 is equipped with an observation window to facilitate observation of the cutting process.

[0038] In a preferred embodiment:

[0039] The support platform 1 is provided with multiple support legs 24 at the bottom, and the bottom of the support legs 24 is provided with casters 25. The casters 25 are preferably casters with a self-locking structure, which facilitates movement and positioning, adapts to the changing working environment requirements of the engineering site, and improves the flexibility of operation. The specific structure and assembly method of the casters 25 are existing technologies, and will not be described in detail in this invention.

[0040] The top surface of the support platform 1 is connected to two mounting platforms 2 arranged at intervals along a straight line. Each mounting platform 2 has two sets of support roller positioning structures on its top surface. Each set of support roller positioning structures includes two opposing support roller positioning seats 3. The two support roller positioning seats 3 in the same set are rotatably connected to the first support roller 41 or the second support roller 42 via bearings. The shafts of all first support rollers 41 and all second support rollers 42 are concentrically arranged. A bidirectional motor 10 is selected for multi-motor adaptation and installed at the bottom of the support platform 1. The two output shafts of the bidirectional motor 10 are connected to drive shafts 11 via couplings. The end of each drive shaft 11 away from the bidirectional motor 10 is fixedly fitted with a first synchronous pulley 12. One end of the shaft of the first support roller 41 extends outside the support platform 1 and is fixedly fitted with a second synchronous pulley 13. The first synchronous pulley 12 and the second synchronous pulley 13 on the same side are connected by a synchronous belt 14. Two reinforcing seats 27 are also fixedly connected to the bottom of the support platform 1, and the two drive shafts 11 rotatably pass through the corresponding reinforcing seats 27. It is understood that the first drive mechanism is not limited to the bidirectional motor 10. Those skilled in the art will know that any power system capable of providing at least two synchronous rotational outputs is applicable to the present invention, such as a single special motor with multiple output shafts (i.e., a multi-output motor), or a collection of multiple independent motors synchronously controlled by a controller, which can satisfy the synchronous rotational control of the required number of first support rollers 41. Two first brackets 5 are fixedly connected to the rear of the support platform 1. A first electric push rod 6 is fixedly installed on the top of each first bracket 5. The telescopic rod of each first electric push rod 6 is vertically downward and fixedly connected to a first mounting frame 7. The first mounting frame 7 is U-shaped and its inner side is rotatably connected to a pressing roller 8 through a bearing. The first support roller 41, the second support roller 42, and the pressing roller 8 each form a group, which cooperate to form an adjustable tubular constraint mechanism.

[0041] A second bracket 16 is fixedly connected to the rear of the support platform 1. A second electric push rod 17 is fixedly installed on the top of the second bracket 16. The telescopic rod of the second electric push rod 17 extends vertically downward and is fixedly connected to an L-shaped second mounting bracket 18. A second drive motor 19 (which can be made from a finished servo motor) is fixedly installed on the second mounting bracket 18. The output shaft of the second drive motor 19 extends horizontally and is connected to the cutting disc 20 through bolts and other components. The cutting disc 20 has a disc-shaped structure.

[0042] A rectangular protective plate 22 is mounted on the front of the support platform 1 via a hovering hinge 21. The protective plate 22 can be flipped upwards for protection or adjusted to fit a tilt angle. The adjustment method and structure are existing technologies and will not be described further. A hole is opened in the middle of the protective plate 22 and tempered glass 23 is installed as an observation window.

[0043] The side of the support platform 1 is also equipped with a control panel 26, which is electrically connected to the first electric push rod 6, the second electric push rod 17, the first drive motor and the second drive motor 19 via wires, and is connected to an external power supply for centralized control of each electric structure.

[0044] On the other hand, the present invention also provides a method of using a pipe cutting device, comprising the following steps:

[0045] S1. Move the pipe cutting device to the predetermined position and lock it. Place the pipe to be cut on the first support roller 41 and the second support roller 42 of the multiple sets of pipe constraint mechanisms. Use a measuring tool to mark the cutting position and move the pipe so that the part to be cut is directly below the cutting blade 20.

[0046] S2. The first electric push rod 6 in the two first adjustment components is activated through the control panel 26, which pushes the two U-shaped first mounting brackets 7 and the extrusion roller 8 to move down synchronously until the surface of the extrusion roller 8 makes reliable contact with the pipe and applies a moderate clamping force, thereby stably constraining the pipe between the first support roller 41, the second support roller 42 and the extrusion roller 8.

[0047] S3. Flip the protective plate 22 upwards to a vertical or inclined protective position. Start the second drive motor 19 (servo motor) via the control panel 26 to drive the cutting blade 20 to rotate at high speed. Then, activate the second electric push rod 17 in the second adjustment assembly to push the L-shaped second mounting bracket 18 and the rotating cutting blade 20 downwards, allowing the cutting blade 20 to cut into the pipe. Understandably, in different usage scenarios, the cutting blade 20 can be lowered to a certain preset depth and then held in a fixed position, or it can be driven by the second electric push rod 17 to make small up-and-down reciprocating movements during the cutting process to facilitate cutting.

[0048] The first drive motor (bidirectional motor 10) is activated via control panel 26 to control the rotation of the first synchronous pulley 12. The first synchronous pulley 12, the second synchronous pulley 13, and the synchronous belt 14 drive multiple first support rollers 41 to rotate synchronously. The rotation of the first support rollers 41 causes the pipe to be cut, the second support roller 42 in contact with it, and the extrusion roller 8 to rotate passively together. The rotation of the pipe allows the cutting blade 20 to continuously cut along the circumference of the pipe until it is completely severed. During the cutting process, the internal conditions can be observed through an observation window made of tempered glass 23.

[0049] S4. After cutting is completed, stop the second drive motor 19 and the first drive motor, and control the second electric push rod 17 to lift the cutting blade 20 and control the first electric push rod 6 to lift the extrusion roller 8, so that the cut pipe can be taken out.

[0050] This invention can support and cut pipes of different outer diameters, and has strong versatility. By using a rotating and movable cutting blade 20 in conjunction with a pipe to be cut that is driven to rotate, it can achieve circumferential cutting of pipes of different diameters, especially suitable for large-diameter pipes and reducing the dependence on the size of the cutting blade 20 itself.

[0051] The embodiments of the present invention have been described in detail above, but the content described is only a preferred embodiment of the present invention and should not be considered as limiting the scope of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A pipe cutting device, characterized in that, include: Support platform; Multiple sets of pipe constraint mechanisms arranged along a straight line are provided. Each set of pipe constraint mechanisms includes a first support roller, a second support roller, a pressing roller, and a first adjusting component for adjusting the pressing roller, which are used to constrain and drive the pipe to be cut to rotate. The first support roller and the second support roller are rotatably connected to the support platform, and the pressing roller is rotatably and relatively movable to the support platform through the first adjusting component. A cutting mechanism, comprising a cutting blade and a second adjustment assembly, wherein the cutting blade is rotatably and relatively movable to the support platform via the second adjustment assembly.

2. The pipe cutting device according to claim 1, characterized in that, The shafts of the first support roller, the second support roller, and the extrusion roller are arranged parallel to each other.

3. The pipe cutting device according to claim 2, characterized in that, The axes of rotation of the multiple first support rollers are collinear, and / or the axes of rotation of the multiple second support rollers are collinear.

4. The pipe cutting device according to claim 1, characterized in that, It also includes a drive system, which includes a first drive mechanism connected to the support platform, the first drive mechanism being configured to drive at least two of the first support rollers to rotate synchronously.

5. The pipe cutting device according to claim 4, characterized in that, The drive system further includes a first synchronous pulley, a second synchronous pulley, and a synchronous belt. The first drive mechanism includes multiple motors connected to the support platform. The output ends of the multiple motors are connected to their respective first synchronous pulleys via drive shafts. The shafts of at least two first support rollers are respectively connected to their corresponding second synchronous pulleys. The second synchronous pulleys and their corresponding first synchronous pulleys are connected by the synchronous belt drive.

6. The pipe cutting device according to claim 1, characterized in that, The first adjustment assembly includes a first bracket connected to the support platform, a first telescopic part connected to the first bracket, and a first mounting frame connected to the first telescopic part, wherein the extrusion roller is rotatably connected to the first mounting frame.

7. The pipe cutting device according to claim 1, characterized in that, The second adjustment assembly includes a second bracket connected to the support platform, a second telescopic part connected to the second bracket, a second mounting bracket connected to the second telescopic part, and a second drive motor connected to the second mounting bracket. The second drive motor is connected to the cutting blade.

8. The pipe cutting device according to any one of claims 1-7, characterized in that, It also includes a protective plate, which is movably connected to the support platform.

9. The pipe cutting device according to claim 8, characterized in that, The protective panel is equipped with an observation window.

10. A method of using a pipe cutting device, for use with the pipe cutting device according to any one of claims 1-9, characterized in that, The usage steps include the following: The pipe to be cut is placed on the first support roller and the second support roller of the multiple sets of pipe constraint mechanisms; The extrusion roller is moved by the first adjustment component until it contacts the tube to be cut. The second adjustment component controls the movement of the cutting blade until the cutting blade contacts the pipe to be cut. The first support roller is driven to rotate, thereby causing the pipe to be cut, the second support roller, and the extrusion roller to rotate synchronously, and the pipe to be cut is circumferentially cut by the cutting blade.

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