Groove pipe port PE layer stripping equipment and working method

Abstract

The application discloses a kind of trench pipeline port PE layer stripping equipment and method, solve the problem that existing technology is easy to damage epoxy resin layer in the rotation of barb wheel and groove pipeline is ground, with the beneficial effect of effectively stripping the PE layer of the surface of trench pipeline without damaging the epoxy resin layer, the specific scheme is as follows: a kind of trench pipeline port PE layer stripping equipment, including supporting wheel mechanism and PE layer stripping device, supporting wheel mechanism supports and can drive trench pipeline rotation, PE layer stripping device includes movable base, base supports mounting base plate, mounting base plate supports first lifting mechanism and positioning mechanism, first lifting mechanism is connected with cutter mechanism, mounting base plate supports positioning mechanism, positioning mechanism is connected with cutter mechanism, positioning mechanism can be contacted with the lower side of trench pipeline, mounting base plate supports pipe end limiting mechanism that can be located in the port of trench pipeline, pipe end limiting mechanism can slide relative to mounting base plate along the direction of central axis of trench pipeline.

Description

Technical Field

[0001] This invention relates to the field of pipeline connection technology, and in particular to a device and method for peeling off the PE layer at the end of a grooved steel pipe. Background Technology

[0002] The statements in this section are merely background information related to the present invention and do not necessarily constitute prior art.

[0003] Traditional TPEP (anti-corrosion) steel pipes require end face grinding for welding to remove the PE (polyethylene) and epoxy resin layers. The conventional method is to use a port grinder to grind the coating on the pipe end with a serrated wheel to expose the steel pipe substrate, which is beneficial for welding. This processing method is perfectly fine for welding steel pipes. However, the inventors discovered that for steel pipes where the epoxy resin coating needs to be retained, such as grooved pipe ends, grinding the PE layer on the pipe end with a serrated wheel cannot preserve the heat-bonded epoxy resin coating on the steel pipe surface. Furthermore, there are no other means in the existing technology to remove the PE layer on the surface of grooved pipes. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the purpose of this invention is to provide a PE layer peeling device for trench pipe ports, which can effectively peel off the PE layer without damaging the thermally bonded epoxy resin coating beneath the PE layer on the surface of the trench pipe port.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution:

[0006] A PE layer stripping device for trench pipe ports includes a roller support mechanism and a PE layer stripping device. The roller support mechanism supports and drives the trench pipe to rotate. The PE layer stripping device includes a movable base, which supports a mounting plate. The mounting plate supports a first lifting mechanism and a positioning mechanism. The first lifting mechanism is connected to a cutting mechanism. The mounting plate supports a positioning mechanism, which is connected to the cutting mechanism. The positioning mechanism can contact the lower side of the trench pipe to position the cutting mechanism at its initial position. The mounting plate supports a pipe end limiting mechanism that can be located at the trench pipe port. The pipe end limiting mechanism can slide relative to the mounting plate along the central axis of the trench pipe.

[0007] A camera mechanism is installed at the cutting mechanism or the first lifting mechanism, and the camera mechanism, the cutting mechanism, the first lifting mechanism and the roller mechanism are respectively connected to the controller.

[0008] As described above, the stripping device features a roller mechanism that supports the grooved pipe and drives its rotation. Once the cutting mechanism is positioned, the roller mechanism rotates the grooved pipe, allowing the cutting mechanism to separate the PE layer from the epoxy resin layer on one side of the groove at the pipe's port. The pipe end limiting mechanism is movable relative to the base to the port of the grooved pipe, limiting its movement. The distance between the pipe end limiting mechanism and the cutting mechanism can be adjusted to control the length from the pipe's port to the rear edge of the groove. The camera mechanism captures images of the cutting area and sends them to the controller. The controller uses the color of the captured images to control the actions of the cutting mechanism and the roller mechanism. This system not only achieves the separation of the PE layer from the epoxy resin layer but also effectively ensures the epoxy resin layer remains intact and undamaged.

[0009] As described above, in a trench pipe port PE layer stripping device, the first lifting mechanism is fixed to the first seat, the controller is installed on the first seat, the first seat is installed on the second seat, the second seat is installed on the mounting base plate, and the first seat can move relative to the second seat along the central axis of the trench pipe to drive the cutting mechanism to move through the first lifting mechanism.

[0010] The roller support mechanism and the PE layer peeling device are slidably mounted on the first track. The positions of the roller support mechanism and the PE layer peeling device can be adjusted relative to the first track according to the usage conditions to facilitate processing.

[0011] As described above, in a trench pipe port PE layer stripping device, a second lifting mechanism is provided between the base and the mounting plate. The second lifting mechanism is connected to the controller, and the height of the cutting mechanism and the pipe end limiting mechanism can be raised through the second lifting mechanism.

[0012] As described above, in a trench pipe port PE layer stripping device, the pipe end limiting mechanism includes a bracket that is movable relative to the mounting base plate. A pipe end limiting roller is provided on the side of the bracket facing the cutting mechanism, and the rolling surface of the pipe end limiting roller can contact the trench pipe port.

[0013] As described above, in a trench pipe port PE layer stripping device, the mounting base plate is provided with a second track, and the bottom of the bracket is provided with a movable slider, which can be slidably mounted on the second track.

[0014] As described above, a PE layer stripping device for a trench pipe port includes a positioning mechanism comprising a lifting rod located on one side of the first lifting mechanism, the lifting rod being mounted on the second seat, the lifting rod being connected to the controller, and a rotatable roller being provided at the top of the lifting rod, the roller being able to contact the trench pipe.

[0015] The lifting rod has a protrusion on its side, and a groove on the protrusion. A slider is provided on one side of the cutting mechanism. The slider can move along the height and depth of the groove. The slider is engaged in the groove of the lifting rod protrusion. When the cutting mechanism is raised and lowered, it drives the slider to move along the groove. The slider is engaged in the groove in the width direction. The lifting rod provides lateral support for the cutting mechanism, which helps to maintain stability during the cutting process.

[0016] As described above, a PE layer peeling device for trench pipe ports includes a cutting mechanism comprising a mounting plate, one side of which is connected to the top of the first lifting mechanism. The mounting plate is detachably connected to a cutter holder, and the cutter holder is equipped with a driving component. The driving component is connected to the cutter body, and the cutter holder is set higher than the mounting plate. The driving component is a telescopic component, which can drive the cutter body to move forward or backward relative to the cutter holder toward the trench pipe direction in order to peel off the PE layer on one side of the trench at the trench pipe port.

[0017] The camera mechanism is rotatably mounted on the top of the mounting plate. The position of the camera mechanism can be adjusted according to the cutting point of the cutting mechanism at the port of the trench pipe, so that the camera mechanism is aligned with the cutting point of the cutting mechanism.

[0018] As described above, in a trench pipe port PE layer stripping device, a distance sensor is also provided at the cutting mechanism or the first lifting mechanism. The distance sensor is connected to the controller and is used to obtain the distance between the cutting mechanism mounting plate or the first lifting mechanism and the trench pipe, and send it to the controller. The controller controls the first lifting mechanism to stop rising after the mounting plate or the first lifting mechanism reaches the set mechanism.

[0019] Secondly, the present invention also provides a method for peeling off the PE layer at the port of a trenched pipe, using the aforementioned PE layer peeling device for the port of a trenched pipe.

[0020] The method for peeling off the PE layer at the port of a trenched pipe, as described above, includes the following:

[0021] The trench pipeline is supported by a roller support mechanism;

[0022] The pipe end limiting mechanism moves relative to the mounting base plate to the port of the trenched pipe;

[0023] The first lifting mechanism drives the cutting mechanism to rise and contact the PE layer on one side of the trench at the port of the trenched pipe, while the positioning mechanism contacts the lower side of the trenched pipe.

[0024] The cutting mechanism begins cutting the PE layer at the port of the trenched pipe. During the cutting process, the camera mechanism captures images of the cutting location and sends them to the controller.

[0025] The controller controls the actions of the roller mechanism and the cutter mechanism based on the image information of the cutting point sent by the camera. If the controller knows that the image of the cutting point sent by the camera is black, it controls the roller mechanism to keep rotating and the cutter mechanism to continue cutting. If the controller knows that the image of the cutting point sent by the camera is white, the controller controls the cutter mechanism to retreat. The cutter mechanism peels off the PE layer at the port of the trench pipe as the trench pipe rotates.

[0026] The beneficial effects of the present invention are as follows:

[0027] 1) This invention supports the grooved pipeline through a roller mechanism and drives the grooved pipeline to rotate. Once the position of the cutting mechanism is determined, the roller mechanism drives the grooved pipeline to rotate, thereby achieving the separation of the PE layer and epoxy resin layer at the port of the grooved pipeline. The pipe end limiting mechanism is movable relative to the base, which facilitates the determination of the position of the limiting mechanism and thus controls the length from the port of the grooved pipeline to the rear edge of the groove. The camera mechanism can capture images of the cutting point of the cutting mechanism and send them to the controller. The controller can control the actions of the cutting mechanism and the roller mechanism based on the color of the image captured by the camera mechanism. The structure is reasonably designed, and the whole can not only achieve the separation of the PE layer and the epoxy resin layer, but also effectively ensure that the epoxy resin layer is intact and not damaged.

[0028] 2) In this invention, the first lifting mechanism is fixed to the first seat, and the first seat is movable relative to the second seat, which facilitates the adjustment of the position of the cutting mechanism according to the trench pipe port. The first seat is fixed to the second seat, the second seat is installed on the mounting base plate, the mounting base plate is installed on the second lifting mechanism, the second lifting mechanism is installed on the base, the base is installed on the track, and the base is movable relative to the central axis of the trench pipe, so as to realize the simultaneous adjustment of the positions of the cutting mechanism and the pipe end limiting mechanism.

[0029] 3) In this invention, the positioning mechanism positions the initial position of the cutter body of the cutting mechanism. The side of the lifting rod is provided with a protrusion and a groove. The cutting mechanism is provided with a slider that cooperates with the groove. When the first seat moves relative to the second seat, the slider moves along the depth direction of the groove. The slider is engaged in the groove in the width direction. The vertically set lifting rod provides lateral support for the cutting mechanism, which helps the cutting mechanism to remain stable during the cutting process.

[0030] 4) By setting a distance sensor, the present invention can obtain the distance between the cutting mechanism mounting plate or the first lifting mechanism and the trench pipeline, and send it to the controller. After the mounting plate or the first lifting mechanism reaches the set mechanism, the controller controls the first lifting mechanism to stop rising, thereby realizing automatic control of the moving height of the first lifting mechanism.

[0031] 5) The method for peeling off the PE layer at the port of the grooved pipe provided by the present invention involves a first lifting mechanism driving a cutting mechanism to rise and contact the PE layer at the port of the grooved pipe, a roller mechanism supporting the grooved pipe and driving it to rotate, and the cutting mechanism cutting the PE layer of the grooved pipe during the rotation of the grooved pipe to achieve effective peeling of the PE layer from the epoxy resin layer, and the camera mechanism feeding back the image at the cutting position to avoid cutting off the epoxy resin layer. Attached Figure Description

[0032] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0033] Figure 1 This is a front view of a trench pipe port PE layer stripping device according to one or more embodiments of the present invention.

[0034] Figure 2 This is an enlarged schematic diagram of the cutting mechanism and the limiting mechanism in a trench pipe port PE layer stripping device according to one or more embodiments of the present invention.

[0035] The diagram exaggerates the spacing or dimensions between parts to show their positions; the diagram is for illustrative purposes only.

[0036] The components are as follows: 1. Base, 2. Cutting mechanism, 3. Positioning mechanism, 4. Roller support mechanism, 5. Grooved pipe, 6. Protrusion, 7. Second seat, 8. First seat, 9. Controller, 10. First lifting mechanism, 11. Tool body, 12. Distance sensor, 13. PE layer, 14. Roller, 15. Roller seat, 16. Lifting rod, 17. Tool holder, 18. Mounting plate, 19. Slider, 20. Mounting base plate, 21. Second lifting mechanism, 22. First track, 23. Moving slider, 24. Pipe end limiting roller, 25. Pipe end limiting mechanism, 26. Drive assembly, 27. Rotary motor, 28. Second track, 29. Track limiting plate, 30. Control assembly, 31. Limiting end, 32. Roller movement control assembly. Detailed Implementation

[0037] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the invention. Unless otherwise specified, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0038] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of exemplary embodiments according to the invention. As used herein, unless otherwise expressly indicated by the invention, the singular form is also intended to include the plural form. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0039] As described in the background section, the existing technology has the problem that the epoxy resin layer is easily damaged when the grooved pipe is being ground by the serrated wheel. In order to solve the above technical problem, the present invention proposes a PE layer peeling device for the port of the grooved pipe.

[0040] Example 1

[0041] In a typical embodiment of the present invention, reference is made to Figure 1 As shown, a PE layer stripping device for trench pipe ports includes a roller mechanism and a PE stripping device. The roller mechanism 4 supports and can drive the trench pipe 5 to rotate. The PE layer stripping device includes a base 1, which is installed on a first track 22. A limiting end 31 is provided at the end of the first track to limit the movement of the roller mechanism 4 or the base. A second lifting mechanism 21 is installed on the base 1. A mounting base plate 20 is installed at the top of the second lifting mechanism 21. The mounting base plate 20 supports a first lifting mechanism 10, which is connected to a cutting mechanism 2. A positioning mechanism 3 is supported on one side of the first lifting mechanism 10. The positioning mechanism 3 can contact the trench pipe 5. A second track 28 is installed on the mounting base plate 20. The second track 28 supports a pipe end limiting mechanism 25 that can be located at the trench pipe port. The pipe end limiting mechanism 25 can slide along the second track 28 relative to the mounting base plate 20.

[0042] A camera mechanism is installed at the cutting mechanism 2 or the first lifting mechanism 10. The roller mechanism, the cutting mechanism, the camera mechanism, and the first lifting mechanism 10 are respectively connected to the controller 9.

[0043] In this embodiment, the first lifting mechanism is fixed to the first seat 8, the controller 9 is installed on the first seat 8, the controller 9 is located on one side of the first lifting mechanism 10, the first seat 8 is installed on the second seat 7, the second seat 7 is installed on the mounting base plate 20, the first seat 8 can move relative to the second seat 7 along the central axis of the trench pipe 5 to adjust the position of the cutting mechanism; the first seat 8 and the second seat 7 are specifically flat plates, the length of the second seat 7 is greater than the length of the first seat 8, the positioning mechanism supported by the second seat 7 is located on the side of the first seat, and the thickness of the first seat 8 is greater than the thickness of the second seat 7;

[0044] Specifically, the second seat 7 is provided with a first sliding groove, and the lower surface of the first seat 8 is provided with a first protrusion that can be inserted into the first sliding groove, so as to realize the sliding of the first seat 8 relative to the second seat 7 in the length direction;

[0045] It should be explained that the second lifting mechanism 21 can be a scissor lifting mechanism. The control component (specific controller of the scissor lifting mechanism) 30 of the second lifting mechanism 21 is connected to the controller 9. The height of the cutting mechanism and the tube end limiting mechanism can be raised through the second lifting mechanism.

[0046] refer to Figure 2 As shown, the pipe end limiting mechanism 25 includes a bracket. The upper width of the bracket is smaller than the bottom width to ensure stable installation. A movable slider 23 is provided at the bottom of the bracket. The movable slider 23 is installed on the second track 28. Track limiting plates 29 are respectively provided at both ends of the second track 28 to limit the movement of the movable slider 23. The movable slider 23 is connected to a drive component (specifically a motor) 26. The drive component 26 drives the movable slider 23 to move relative to the second track. The drive component 26 is connected to a controller 9. The pipe end limiting mechanism 25 can slide along the second track 28. After determining the distance between the pipe end limiting mechanism 25 and the cutting mechanism, the distance from the trench pipe port to the rear edge of the trench can be controlled.

[0047] Specifically, the pipe end limiting mechanism 25 includes a pipe end limiting roller 24, which is rotatably mounted on the notch of the bracket near the cutting mechanism. The rolling surface of the pipe end limiting roller 24 can contact the trench pipe port. The central axis of the pipe end limiting roller 24 is set longitudinally, and the center of the pipe end limiting roller 24 is set higher than the cutting mechanism.

[0048] Understandably, the first track 22 can support one or more roller support mechanisms 4. The roller support mechanism 4 is an existing roller frame. When multiple roller support mechanisms 4 are provided, the distance between two adjacent roller support mechanisms 4 is set. The roller support mechanism 4 supports the middle section of the grooved pipe 5 and is used to support the base 1 of the cutter mechanism 2 and the positioning mechanism 3. It is located on the end side of the grooved pipe 5.

[0049] The roller support mechanism 4 is controlled by a rotary control component, such as a rotary motor 27, which is connected to a controller 9. The controller controls the rotation of the rollers via the rotary motor. Furthermore, the roller support mechanism support base and the roller movement control component 32, such as a linear drive motor, are controlled to move along the second track. The roller movement control component 32 may or may not be connected to the controller. It is understood that, to accommodate trench pipes 5 of different lengths, the roller support mechanism 4 can be slidably mounted on the first track 22, facilitating the movement of the roller support mechanism 4 relative to the base 1. The movable roller support mechanism allows for adjustment of its position according to the length of the trench pipe.

[0050] refer to Figure 2As shown, the positioning mechanism 3 includes a lifting rod 16, which can be a lifting cylinder or other lifting structure. The lifting rod 16 is located on one side of the first lifting mechanism 10 and is mounted on the second seat 7. The lifting rod 16 is connected to the controller. A rotatable roller 14 is set at the top of the lifting rod 16 through the roller seat 15. The roller 14 can contact the lower side of the trench pipe 5. The central axis of the roller 14 is parallel to the central axis of the trench pipe 5. The lifting rod 16 drives the roller 14 to rise. In this embodiment, the cutting mechanism 2 includes a mounting plate 18. One side of the mounting plate 18 is connected to the top of the first lifting mechanism 10. The mounting plate 18 and the cutting tool are connected to each other. The base 17 is detachably connected. The tool holder 17 is equipped with a drive component, which is connected to the tool body 11. The tool body 11 is an existing cutting tool. The top of the tool body 11 has a cutting edge, which is set towards the grooved pipe 5. The tool holder 17 is set higher than the mounting plate 18. The drive component is a telescopic component. The fixed end of the telescopic component is fixed to the tool holder 17, and the movable end of the telescopic component is connected to the tool body 11. Specifically, the telescopic component is a linear drive cylinder or a linear drive motor fixed to the tool holder 17. The telescopic component can drive the tool body 11 to move forward or backward relative to the tool holder 17 towards the grooved pipe 5 in order to peel off the PE layer 13 at the end of the grooved pipe 5.

[0051] Understandably, the roller 14 of the positioning mechanism contacts the outer surface of the PE layer 13. The height of the lifting rod and the first lifting mechanism can be adjusted according to the height of the grooved pipeline to make the initial position of the cutting edge of the tool body and the top side of the roller at the same height, thereby realizing the positioning mechanism to position the initial position of the tool body.

[0052] In this embodiment, the first lifting mechanism 10 is specifically a lifting cylinder or a linear drive electric cylinder. The bottom end of the first lifting mechanism is fixed to the first seat 8. The movable end of the first lifting mechanism 10 is reliably connected to the bottom of one side of the cutting mechanism mounting plate 18. The first lifting mechanism drives the knife holder 17 and the knife body 11 to move toward the grooved pipe 5 or move in the opposite direction through the mounting plate 18.

[0053] In addition, in this embodiment, a protrusion 6 is provided on the side of the lifting rod 16, the protrusion 6 having a set height, and a groove is provided on the side of the protrusion 6 facing the cutting mechanism, the groove having a set height, depth and width. A slider 19 is provided on one side of the cutting mechanism mounting plate 18, the slider 19 can move along the height direction and the depth direction of the groove. The cutting mechanism 2 is engaged in the groove of the lifting rod protrusion 6 by the slider 19. When the cutting mechanism 2 is raised and lowered, it drives the slider 19 to move along the groove. When the first seat 8 moves relative to the second seat 7, the slider 19 moves along the depth direction of the groove. The slider 19 is engaged in the groove in the width direction. The vertically arranged lifting rod 16 provides a lateral support for the cutting mechanism 2, which is beneficial to maintaining stability during the cutting process.

[0054] In some examples, a distance sensor is also provided at the cutting mechanism 2 or the first lifting mechanism 10. In this embodiment, the distance sensor 12 is vertically installed on the top of the mounting plate 18 of the cutting mechanism. The camera mechanism and the distance sensor are both located on one side of the cutter body 11, with a distance between them. The measuring end of the distance sensor 12 is set upward. The distance sensor 12 is specifically a laser distance sensor. The distance sensor 12 is connected to the controller 9. The distance sensor 12 is used to obtain the distance between the cutting mechanism mounting plate 18 or the first lifting mechanism and the trench pipe 5, and send it to the controller 9. The controller 9 controls the first lifting mechanism to stop rising after the mounting plate 18 or the first lifting mechanism 10 reaches the set mechanism.

[0055] In addition, the camera can be rotatably mounted on the top of the mounting plate 18 of the cutting mechanism. The mounting plate 18 is equipped with a swing motor, which is connected to the controller. The movable end of the swing motor is connected to the camera mechanism, which can swing within a set angle range. In this way, the position of the camera mechanism can be adjusted according to the cutting point of the cutting mechanism 2 at the port of the grooved pipe 5, so that the camera mechanism is aligned with the cutting point of the cutting mechanism.

[0056] Understandably, the camera assembly consists of an existing camera and corresponding control accessories. The camera's control accessories are connected to the controller, which receives the image information sent by the camera and controls the camera's movement. The controller 9 is an existing industrial control computer. The industrial control computer uses existing image recognition software to identify the images captured by the camera assembly, determining whether the image is white or black. Black indicates the presence of a black PE layer, while white indicates that the black PE layer has been cut, exposing the white epoxy resin layer. This effectively controls the peeling depth, ensuring that the cutting mechanism 2 does not damage the epoxy resin layer on the surface of the trench pipe 5. This guarantees that there is no PE layer in the trench of the steel pipe, but the epoxy resin layer remains intact and undamaged, ensuring that the trench pipe has a long service life after installation.

[0057] The stripping device provided in this embodiment has a roller mechanism 4 that supports the grooved pipe 5 and drives the grooved pipe 5 to rotate. After the position of the cutting mechanism 2 is determined, the roller mechanism 4 drives the grooved pipe 5 to rotate, which can separate the PE layer 13 and the epoxy resin layer at the port of the grooved pipe 5. The pipe end limiting mechanism 25 can move to control the length from the port of the grooved pipe to the rear edge of the groove. The camera mechanism can capture images of the cutting point of the cutting mechanism and send them to the controller. The controller 9 can control the actions of the cutting mechanism 2 and the roller mechanism 4 according to the color of the image captured by the camera mechanism. The whole device can not only achieve the separation of the PE layer 13 and the epoxy resin layer, but also effectively ensure that the epoxy resin layer is intact and not damaged.

[0058] Example 2

[0059] This embodiment provides a method for stripping the PE layer at the port of a trenched pipe, using the PE layer stripping device for the port of a trenched pipe described in Embodiment 1.

[0060] Specifically, a method for peeling off the PE layer at the port of a trenched pipe includes the following:

[0061] The grooved pipe 5 is supported by the roller support mechanism 4, and the roller support mechanism 4 is moved by the first rail 22 to support the grooved pipe 5 in a reasonable position;

[0062] The first lifting mechanism 10 drives the cutting mechanism 2 to rise. During the rising process, the distance sensor 12 obtains the distance between the mounting plate 18 and the trench pipe 5. When the distance sensor 12 measures the distance between the mounting plate 18 and the trench pipe 5 to meet the set requirements, the controller controls the first lifting mechanism 10 to stop rising.

[0063] The pipe end limiting mechanism 25 moves along the second track to the trench pipe port to control the length from the trench pipe 5 port to the rear edge of the trench.

[0064] The lifting rod 16 of the positioning mechanism 3 moves relative to the second seat 7. The lifting rod 16 drives the roller 14 to rise and contact the trench pipe 5. The roller 14 is an auxiliary positioning mechanism for peeling the PE layer off the tool body 11.

[0065] The position of the first seat 8 is moved relative to the second seat 7 so that the cutting edge of the cutter body 11 in the cutting mechanism is aligned with the port of the grooved pipe 5;

[0066] In the cutting mechanism 2, the driving component drives the cutter body 11 to move toward the trench pipe 5 and start cutting the PE layer 13 at the port of the trench pipe. During the cutting process, the camera mechanism captures an image at the cutting position and sends it to the controller 9.

[0067] The controller 9 controls the actions of the roller mechanism 4 and the cutting mechanism 2 based on the image information of the cutting point sent by the camera mechanism. If the controller knows that the image of the cutting point sent by the camera mechanism is black, it controls the roller mechanism 4 to continue rotating, driving the grooved pipe to rotate, and the cutting mechanism 2 to continue cutting. If the controller knows that the image of the cutting point sent by the camera mechanism is white, the controller controls the cutter body to move downward through the telescopic component, without cutting the epoxy resin layer, thus protecting the epoxy resin layer from damage. The cutting mechanism peels off the PE layer at the port as the grooved pipe rotates.

[0068] Moreover, it is understandable that in some examples, the controller is connected to the telescopic component of the cutting mechanism to control the feed depth of the cutter body. The feed depth of the cutter body is determined according to the thickness of the PE layer, and further precise control is performed according to the camera mechanism to achieve that the cutter only cuts the PE layer without damaging the epoxy resin layer.

[0069] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A device for peeling off the PE layer at the end of a trenched pipe, characterized in that, The device includes a roller support mechanism and a PE layer peeling device. The roller support mechanism supports and drives the grooved pipeline to rotate. The PE layer peeling device includes a movable base, which supports a mounting base plate. The mounting base plate supports a first lifting mechanism and a positioning mechanism. The first lifting mechanism is connected to a cutting mechanism. The mounting base plate supports a positioning mechanism, which is connected to the cutting mechanism. The positioning mechanism can contact the lower side of the grooved pipeline to position the cutting mechanism at its initial position. The mounting base plate supports a pipe end limiting mechanism that can be located at the port of the grooved pipeline. The pipe end limiting mechanism can slide relative to the mounting base plate along the central axis of the grooved pipeline. A camera mechanism is installed at the cutting mechanism, and the camera mechanism, the cutting mechanism, the first lifting mechanism, and the roller mechanism are respectively connected to the controller; The first lifting mechanism is fixed to the first seat, the controller is installed on the first seat, the first seat is installed on the second seat, the second seat is installed on the mounting base plate, and the first seat can move relative to the second seat along the central axis of the trench pipeline to drive the cutting mechanism to move through the first lifting mechanism; The roller support mechanism and the PE layer peeling device are respectively slidably mounted on the first track; The positioning mechanism includes a lifting rod, which is located on one side of the first lifting mechanism. The lifting rod is installed on the second seat and connected to the controller. A rotatable roller is provided at the top of the lifting rod, and the roller can contact the trench pipeline. The lifting rod has a protrusion on its side, and the protrusion has a sliding groove. The cutting mechanism has a slider on one side, and the slider can move along the height direction and the depth direction of the sliding groove. The pipe end limiting mechanism includes a bracket, which is movable relative to the mounting base plate. A pipe end limiting roller is provided on the side of the bracket facing the cutting mechanism, and the rolling surface of the pipe end limiting roller can contact the trench pipe port. The camera mechanism is rotatably mounted on the top of the mounting plate of the cutting mechanism. The control accessories of the camera mechanism are connected to the controller. The controller receives the image information sent by the camera mechanism and controls the swing of the camera mechanism. If the image is black, the controller controls the roller mechanism to keep rotating and the cutting mechanism to continue cutting. If the image is white, the controller controls the cutting mechanism to retreat.

2. The PE layer stripping device for trench pipe ports according to claim 1, characterized in that, A second lifting mechanism is provided between the base and the mounting plate, and the second lifting mechanism is connected to the controller.

3. The PE layer stripping device for trench pipe ports according to claim 1, characterized in that, The mounting base plate is provided with a second track, and the bottom of the bracket is provided with a movable slider that can be slidably mounted on the second track.

4. The PE layer stripping device for trench pipe ports according to claim 1, characterized in that, The cutting mechanism includes a mounting plate, one side of which is connected to the top of the first lifting mechanism. The mounting plate is detachably connected to the blade holder, which is equipped with a driving component that is connected to the blade body. The blade holder is positioned higher than the mounting plate.

5. The PE layer stripping device for trench pipe ports according to claim 1, characterized in that, A distance sensor is also provided at the cutting mechanism or the first lifting mechanism, and the distance sensor is connected to the controller.

6. A method for peeling off the PE layer at the port of a trenched pipe, characterized in that, The PE layer stripping device for trench pipe ports according to any one of claims 1-5 is used.

7. The method for peeling off the PE layer at the port of a trenched pipe according to claim 6, characterized in that, Includes the following: The trench pipeline is supported by a roller support mechanism; The pipe end limiting mechanism moves relative to the mounting base plate to the port of the trenched pipe; The first lifting mechanism drives the cutting mechanism to rise and contact the PE layer on one side of the trench at the port of the trenched pipe, while the positioning mechanism contacts the lower side of the trenched pipe. The cutting mechanism begins cutting the PE layer at the port of the trenched pipe. During the cutting process, the camera mechanism captures images of the cutting location and sends them to the controller. The controller controls the actions of the roller support mechanism and the cutter mechanism based on the image information of the cutting point sent by the camera. If the controller knows that the image of the cutting point sent by the camera is black, it controls the roller support mechanism to keep rotating and the cutter mechanism to continue cutting. If the controller knows that the image of the cutting point sent by the camera is white, the controller controls the cutter mechanism to retreat. The cutter mechanism peels off the PE layer at the port of the trench pipe as the trench pipe rotates.

Images