Large-diameter pipeline cutting equipment

Abstract

The utility model relates to the technical field of pipeline machining, in particular to large-diameter pipeline cutting equipment which comprises a conveying device and a cutting device, and the cutting device comprises a mounting base, a cutting piece, a clamping piece, a supporting piece and a driving assembly driving the mounting base to move in a reciprocating mode. The cutting piece and the supporting piece are fixed on the mounting base; the two sets of supporting pieces are located on the two sides of the cutting piece correspondingly. Each group of supporting pieces comprises a supporting piece mounting frame, each supporting piece mounting frame comprises two inclined planes which are oppositely arranged, and each inclined plane is provided with a plurality of rollers; the two sets of clamping pieces are fixed to the two sides of the cutting piece correspondingly. Each clamping piece comprises two clamping plates and a driver connected with the clamping plates, and the drivers are configured to drive the clamping plates to move in a reciprocating mode in the direction facing the corresponding inclined faces. By means of the cutting equipment, the problem that the fixing and limiting effects are poor when a large-diameter pipeline is cut can be effectively solved, continuous operation can be achieved, and the machining effect is high.

Description

Technical Field

[0001] This utility model relates to the field of pipe processing technology, and in particular to a large-diameter pipe cutting device. Background Technology

[0002] During pipeline processing, pipes generally need to be segmented to facilitate later installation and use. Existing technologies have proposed many pipe cutting devices. For example, Chinese utility model patent document CN213258116U, published on May 25, 2021, discloses the following technical solution: A pipe cutting device for water conservancy projects, comprising an operating table, a support structure, and a clamping structure. A positioning device is installed through the adjustment groove of the operating table. A controller is installed above the operating table, with the positioning device located on one side of the controller. A support structure is installed above the operating table, and a lifting structure is installed through the top of the support structure. A cutting device is installed inside the lifting structure. A clamping structure is bolted to the top of the operating table. A conveying structure is installed on the inner wall of the mounting groove of the operating table. The conveying structure is connected to a motor via a belt, and the motor is mounted below the processing table of the operating table via a mounting box.

[0003] The above-mentioned technical solution requires stopping the pipeline transport when cutting the pipeline, and can only rely on the clamping structure for fixing and holding. For large-diameter pipelines, the fixing and limiting effect is poor, and continuous operation is not possible. Summary of the Invention

[0004] To solve the above-mentioned technical problems, this utility model proposes a large-diameter pipe cutting device, which can effectively solve the problem of poor fixation and limiting effect during large-diameter pipe cutting, and can achieve continuous operation with high processing effect.

[0005] This utility model is achieved by adopting the following technical solution:

[0006] A large-diameter pipe cutting device includes a conveying device and a cutting device. The conveying device is configured to convey the pipe to the cutting device. The cutting device includes a mounting base, a cutting component, a clamping component, a supporting component, and a drive assembly for reciprocating movement of the mounting base. The cutting component and the supporting component are both fixed on the mounting base. Two sets of supporting components are provided, located on both sides of the cutting component. Each set of supporting components includes a supporting component mounting frame, which includes two opposing inclined surfaces, each inclined surface having a plurality of rollers. Two sets of clamping components are provided, fixed on both sides of the cutting component. Each set of clamping components includes two clamping plates and a driver connected to each clamping plate, the driver being configured to drive the clamping plates to reciprocate in a direction toward the corresponding inclined surface.

[0007] The support also includes a first lifting device configured to lift the support mounting frame.

[0008] The first lifting device includes a mounting base, a screw, a nut, a guide column, and a motor that drives the screw to rotate. The nut matches the screw and is sleeved on the guide column. The nut is also connected to the support mounting bracket.

[0009] The mounting base is also provided with scale lines, and the nut is also connected with an indicator corresponding to the scale lines.

[0010] The roller is connected to the inclined surface via a roller mounting bracket, and the connection between the roller mounting bracket and the inclined surface is detachable.

[0011] Each clamping plate includes a first clamping plate and a second clamping plate arranged symmetrically, the first clamping plate and the second clamping plate forming an angle of less than 180°.

[0012] The clamping plate is detachably connected to a protective block on the side near the pipe.

[0013] It also includes a support and positioning device located at the output end of the cutting device. The support and positioning device includes a mounting frame, a tapered roller detachably connected to the mounting frame, and a second lifting device that drives the mounting frame to move up and down.

[0014] It also includes a guide rail, on which the mounting base is slidably connected.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. In this utility model, by correspondingly setting two sets of clamping and supporting components, the pipe can be limited and fixed from both ends during pipe cutting, and each end limits and fixes the pipe from four directions. For large-diameter pipes, the fixing and limiting effect is better. Furthermore, this utility model restricts the four directions of force applied to the pipe through the relative positional relationship of the clamping and supporting components, making the force on the pipe more uniform.

[0017] Furthermore, in this invention, the driving component can drive the mounting base to move back and forth, which in turn drives the cutting component, clamping component, and support component to move back and forth, allowing the cutting component, clamping component, and support component to move synchronously with the pipeline. This allows the pipeline to be cut without interrupting the pipeline's transport, resulting in higher processing efficiency.

[0018] 2. In this utility model, the setting of the first lifting device and the second lifting device enables the height of the support and the support positioning device to be adjusted, so as to make adaptive adjustments for pipes of different diameters, making the cutting equipment widely applicable.

[0019] 3. The guide column design improves the stability of the support components during lifting and lowering.

[0020] 4. The scale lines allow for more intuitive and faster adjustment of the support height.

[0021] 5. The roller mounting frame and the inclined surface are detachable, making it easy to replace the roller.

[0022] 6. Each clamping plate includes a first clamping plate and a second clamping plate arranged symmetrically. The first clamping plate and the second clamping plate form an angle of less than 180°, so that each clamping plate has two contact surfaces when it contacts the pipe, and the contact is uniform, which can improve the stability of the fixation.

[0023] 7. The protective block can prevent damage to the outer layer of the pipe. At the same time, the protective block and the clamping plate are detachably connected, which makes it easy to replace the protective block of different specifications, such as different thicknesses, so as to adapt to pipes of different specifications.

[0024] 8. The output end of the cutting device is also equipped with a support and positioning device, which provides better support, positioning and guidance.

[0025] 9. The mounting base is slidably connected to the guide rail, which improves the stability of the mounting base when it moves and prevents the mounting base from shifting. Attached Figure Description

[0026] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments, wherein:

[0027] Figure 1 This is a schematic diagram of the cutting device in this utility model;

[0028] Figure 2 This is a schematic diagram of the support and positioning device in this utility model;

[0029] Marked in the image:

[0030] 1. Mounting base, 2. Mounting base, 3. Cutting blade, 4. Support mounting bracket, 5. Motor, 6. Roller, 7. Driver, 8. Indicator, 9. Roller mounting bracket, 10. First clamping plate, 11. Second clamping plate, 12. Protective block, 13. Mounting bracket, 14. Conical roller, 15. Second lifting device, 16. Guide rail, 17. Screw, 18. Nut, 19. Guide column, 20. Scale line, 21. Cutting machine frame. Detailed Implementation

[0031] Example 1

[0032] As a basic embodiment of this utility model, the utility model includes a large-diameter pipe cutting device, comprising a conveying device and a cutting device. The conveying device can employ conventional techniques in the art and is configured to convey the pipe to the cutting device. For example, the conveying device may include a conveying roller and a pushing member that drives the pipe to move on the conveying roller toward the cutting device. The cutting device includes a mounting base 2, a cutting component, a clamping component, a supporting component, and a drive assembly that drives the mounting base 2 to reciprocate. The drive assembly can be a cylinder. The cutting component and the supporting component are both fixed to the mounting base 2. Two sets of supporting components are provided, located on both sides of the cutting component. Each set of supporting components includes a supporting component mounting frame 4, which includes two opposing inclined surfaces, each inclined surface having several rollers 6. Two sets of clamping components are provided, fixed on both sides of the cutting component. Each set of clamping components includes two clamping plates and a driver 7 connected to each clamping plate. The driver 7 can be a conventional linear drive mechanism in the art, such as a cylinder, a linear motor, etc., and is configured to drive the clamping plate to reciprocate along the direction toward the corresponding inclined surface.

[0033] Example 2

[0034] In a preferred embodiment of this utility model, the present utility model includes a large-diameter pipe cutting device, comprising a conveying device and a cutting device. Specifically, the conveying device may include a conveying roller and a motor that drives the conveying roller to rotate. The rotation of the conveying roller conveys the pipe on the conveying roller to the cutting device.

[0035] The cutting device includes a mounting base 2, a cutting component, a clamping component, a support component, and a drive assembly that drives the mounting base 2 to reciprocate. Both the cutting component and the support component are fixed to the mounting base 2. Two sets of support components are provided, located on either side of the cutting component. Each set of support components includes a support component mounting frame 4 and a first lifting device configured to raise and lower the support component mounting frame 4. The support component mounting frame 4 includes two opposing inclined surfaces, each inclined surface having several rollers 6. To facilitate the installation and removal of the rollers 6, the rollers 6 can be connected to the inclined surfaces via roller mounting frames 9, and the roller mounting frames 9 and the inclined surfaces can be detachably connected via bolts or other components.

[0036] The cutting component can be made using conventional techniques in the field, such as a saw blade, a rotary drive that rotates the saw blade, and a lifting assembly that moves the saw blade and the rotary drive up and down together.

[0037] The clamping components are provided in two sets, respectively fixed on both sides of the cutting component. Each set of clamping components includes two clamping plates and a driver 7 connected to each clamping plate. The driver 7 is configured to drive the clamping plate to reciprocate in the direction toward the corresponding inclined surface. The clamping plate may be flat, and a protective block 12 is fixed on the side near the pipe.

[0038] The drive component can be a servo electric cylinder, which drives the mounting base 2 and the cutting component, clamping component, and support component on the mounting base 2 to move synchronously with the pipe when the cutting component cuts the pipe, and then resets after the cutting is completed.

[0039] Example 3

[0040] In another preferred embodiment of this utility model, a large-diameter pipe cutting device is provided, comprising a conveying device and a cutting device. The conveying device is configured to convey the pipe to the cutting device. The cutting device includes a mounting base 2, a cutting component, a clamping component, a supporting component, and a driving assembly. Furthermore, a guide rail 16 may be provided, and the mounting base 2 is slidably connected to the guide rail 16. The driving assembly drives the mounting base 2 to reciprocate along the guide rail 16.

[0041] Both the cutting component and the support component are fixed on the mounting base 2. There are two sets of support components, located on both sides of the cutting component. Each set of support components includes a support component mounting frame 4, which includes two opposing inclined surfaces, and each inclined surface is provided with several rollers 6.

[0042] The clamping components are provided in two sets, respectively fixed on both sides of the cutting component. Each set of clamping components includes two clamping plates and a driver 7 connected to each clamping plate. The driver 7 is configured to drive the clamping plates to reciprocate in a direction toward the corresponding inclined surface. Each clamping plate includes a symmetrically arranged first clamping plate 10 and a second clamping plate 11, which can be connected by a connecting plate. The first clamping plate 10 and the second clamping plate 11 form an angle of less than 180°, making the clamping plate as a whole trapezoidal in shape.

[0043] Example 4

[0044] In the preferred embodiment of this utility model, a large-diameter pipe cutting device is provided, comprising a conveying device, a cutting device, and a support and positioning device. The conveying device is located at the input end of the cutting device and is configured to convey the pipe to the cutting device. Specifically, the conveying device may include several rollers. The rollers may have a tapered shape, with the diameters at both ends larger than the diameter in the middle. The support and positioning device is located at the output end of the cutting device. (See attached specification) Figure 2The support and positioning device includes a mounting frame 13, a tapered roller 14 detachably connected to the mounting frame 13, and a second lifting device 15 that drives the mounting frame 13 to move up and down. The tapered roller 14 is also tapered at both ends, with a larger diameter at the ends than in the middle. The second lifting device 15 may include a support base, a screw, and a rotating handle. The support base has a screw hole that matches the screw. The top of the screw is connected to the mounting frame 13. By rotating the handle, the screw rotates and moves up and down within the screw hole, further driving the mounting frame and the tapered roller 14 on the mounting frame to move up and down.

[0045] Refer to the instruction manual appendix Figure 1 The cutting device includes a mounting base 2, a cutting component, a clamping component, a supporting component, guide rails 16, and a driving assembly. The cutting component and the supporting component are both fixed to the mounting base 2, and the clamping component is fixed to the cutting component. There can be two guide rails 16, located on opposite sides of the mounting base 2. The guide rails 16 are arranged along the pipeline conveying direction, and the mounting base 2 is slidably connected to the guide rails 16. The driving assembly drives the mounting base 2 to reciprocate along the guide rails 16.

[0046] The support components are provided in two sets, located on both sides of the cutting component. Each set of support components includes a support mounting frame 4 and a first lifting device configured to drive the support mounting frame 4 to rise and fall. The first lifting device can be a ball screw assembly. Specifically, the first lifting device includes a mounting base 1, a screw 17, a nut 18, and a motor 5 that drives the screw 17 to rotate. The screw 17 is mounted on the mounting base 1, and the screw 17 matches the nut 18, which is connected to the support mounting frame 4. The motor 5 drives the screw 17 to rotate, further driving the nut 18 and the support mounting frame 4 to rise and fall. Furthermore, to improve the stability of the lifting of the support mounting frame 4, the first lifting device can also include guide posts 19, and the nut 18 is also sleeved on the guide posts 19. The number of guide posts 19 can be two, and the screw 17 is positioned between the two guide posts 19. Furthermore, the first lifting device can be in two sets, located at both ends of the support mounting frame 4. The two sets of first lifting devices operate synchronously. To facilitate a more intuitive and faster determination of whether the support mounting bracket 4 has moved into place, a scale line 20 is provided on the mounting base 1, and an indicator 8 corresponding to the scale line 20 is connected to the nut 18.

[0047] The support mounting frame 4 includes two opposing inclined surfaces, and each inclined surface is detachably connected to several roller mounting frames 9, each roller mounting frame 9 being equipped with a roller 6.

[0048] The cutting component may include a cutting frame 21, a cutting blade 3, and a cutting drive assembly. The cutting frame 21 is mounted on the mounting base 2 and has a circular operating port for pipe passage. The cutting drive assembly drives the cutting blade 3 to rotate along the outer diameter of the pipe to complete the pipe cutting.

[0049] The clamping components are provided in two sets, respectively fixed on both sides of the cutting component. Each set of clamping components includes two clamping plates and a driver 7 connected to each clamping plate. The driver 7 can be a cylinder, configured to drive the clamping plates to reciprocate in the direction of the corresponding inclined surface. Specifically, each clamping plate includes a symmetrically arranged first clamping plate 10 and a second clamping plate 11, which are connected and form an angle of less than 180°. Furthermore, a protective block 12 can be detachably connected to the side of the clamping plate near the pipe using screws or other connecting parts, and the connecting parts can be hidden inside the protective block 12.

[0050] According to the pipe specifications, the height of the support and support positioning device is adjusted. After adjustment, the conveying device transports the pipe to the roller 6 of the support and continues to transport it towards the support positioning device. Existing technology can be used to determine the position where the pipe needs to be cut. For example, infrared sensors can be used to detect when the pipe has moved into position. After this, the clamping plates on the two sets of clamping members move towards the pipe until they engage with the roller 6, fixing the pipe from both ends. The drive assembly moves the mounting base 2 along the pipe transport direction. The moving speed of the mounting base 2 is the same as the pipe transport speed, ensuring that the mounting base 2, cutting element, clamping elements, and support can move synchronously with the pipe, guaranteeing the cutting effect. The cutting drive assembly drives the cutting blade 3 to rotate along the outer diameter of the pipe. After cutting the pipe, the drive assembly moves the mounting base 2 in the opposite direction along the pipe transport direction, resetting and waiting for the next drive. Throughout this process, the pipe is continuously transported towards the support positioning device.

[0051] In summary, any other corresponding modifications made by those skilled in the art based on the technical solution and concept of this utility model without creative mental effort after reading this utility model document are all within the scope of protection of this utility model.

Claims

1. A large-diameter pipe cutting device, comprising a conveying device and a cutting device, wherein the conveying device is configured to convey the pipe to the cutting device; characterized in that: The cutting device includes a mounting base (2), a cutting component, a clamping component, a support component, and a drive assembly that drives the mounting base (2) to reciprocate. The cutting component and the support component are both fixed on the mounting base (2). The support component is provided in two sets, located on both sides of the cutting component. Each set of support components includes a support component mounting frame (4), which includes two opposing inclined surfaces, each inclined surface having several rollers (6). The clamping component is provided in two sets, fixed on both sides of the cutting component. Each set of clamping components includes two clamping plates and a driver (7) connected to the clamping plates. The driver (7) is configured to drive the clamping plates to reciprocate in the direction toward the corresponding inclined surface.

2. The large-diameter pipe cutting equipment according to claim 1, characterized in that: The support also includes a first lifting device configured to lift the support mounting bracket (4) up and down.

3. The large-diameter pipe cutting equipment according to claim 2, characterized in that: The first lifting device includes a mounting base (1), a screw (17), a nut (18), a guide column (19), and a motor (5) that drives the screw (17) to rotate. The nut (18) matches the screw (17) and is sleeved on the guide column (19). The nut (18) is also connected to the support mounting bracket (4).

4. The large-diameter pipe cutting equipment according to claim 3, characterized in that: The mounting base (1) is also provided with a scale line (20), and the nut (18) is also connected with an indicator (8) corresponding to the scale line (20).

5. The large-diameter pipe cutting equipment according to claim 1, characterized in that: The roller (6) is connected to the inclined surface via a roller mounting bracket (9), and the roller mounting bracket (9) and the inclined surface are detachably connected.

6. A large-diameter pipe cutting device according to any one of claims 1 to 5, characterized in that: Each clamping plate includes a first clamping plate (10) and a second clamping plate (11) arranged symmetrically, the first clamping plate (10) and the second clamping plate (11) forming an angle of less than 180°.

7. A large-diameter pipe cutting device according to claim 6, characterized in that: The clamping plate is detachably connected to a protective block (12) on the side near the pipe.

8. A large-diameter pipe cutting device according to claim 7, characterized in that: It also includes a support positioning device located at the output end of the cutting device, the support positioning device including a mounting frame (13), a conical roller (14) detachably connected to the mounting frame (13), and a second lifting device (15) that drives the mounting frame (13) to move up and down.

9. A large-diameter pipe cutting device according to claim 8, characterized in that: It also includes a guide rail (16), on which the mounting base (2) is slidably connected.

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