Automatic winding device for outer protective layer of pipeline

Abstract

The automatic winding device for the outer protective layer of the pipeline comprises a sliding rail, a first mounting frame and a second mounting frame which are used for mounting the pipeline are symmetrically arranged on the two sides of the sliding rail, and the extending direction of the sliding rail is consistent with the axial direction of the pipeline; the winding trolley is installed on the sliding rail in a sliding mode and comprises a base body, and a sliding mechanism matched with the sliding rail is arranged at the bottom of the base body. The rotating platform is rotatably installed on the base body through a vertical rotating shaft, the rotating platform is used for installing the winding unit, and the winding unit comprises a protective layer storage roller, a guide roller set and a tail end pressing roller; the rotating platform can be located at a first station and a second station, and when the rotating platform is located at the first station, the tail end pressing roller and a pipeline of the first mounting frame form winding fit; and when the rotating platform rotates by 180 degrees to a second station, the tail end pressing roller is in winding fit with the pipeline of the second mounting frame. According to the structure, through the symmetrical mounting frames on the two sides of the winding trolley, a single device can serve two pipelines at the same time, and the space utilization rate of the device is increased.

Description

Technical Field

[0001] This application relates to the field of pipeline protection technology, specifically to an automatic winding device for an outer protective layer of a pipeline. Background Technology

[0002] Currently, most pipe outer protective layer winding equipment adopts a single-sided operation mode, that is, the pipe mounting frame is set on one side of the guide rail. After the winding trolley completes the winding on one side, it needs to return to the starting position or be manually transferred to another work station. This has the following technical defects: low space utilization: the single-sided operation mode means that the effective working area of ​​the equipment only utilizes the space on one side of the guide rail. When multiple pipes need to be processed at the same time, multiple machines need to be configured or the work station needs to be changed frequently, resulting in low winding efficiency. Utility Model Content

[0003] In view of the above-mentioned defects or deficiencies in the prior art, the present invention aims to provide an automatic winding device for the outer protective layer of pipes to improve winding efficiency; comprising:

[0004] The slide rail has a first mounting bracket and a second mounting bracket symmetrically arranged on both sides for installing pipes, and the extension direction of the slide rail is consistent with the axial direction of the pipe.

[0005] A winding trolley, slidably mounted on the slide rail, the winding trolley comprising:

[0006] The base body has a sliding mechanism at its bottom that cooperates with the slide rail;

[0007] A rotating platform is rotatably mounted on the base body via a vertical rotating shaft. The rotating platform is used to install a winding unit, which includes a protective layer storage roller, a guide roller group, and an end pressing roller.

[0008] The rotating platform can be in a first station and a second station. When it is in the first station, the end pressing roller forms an intertwined engagement with the pipe of the first mounting frame. When the rotating platform rotates 180° to the second station, the end pressing roller forms an intertwined engagement with the pipe of the second mounting frame.

[0009] According to the technical solution provided in the embodiments of this application, the base body is provided with a group of positioning holes, and the bottom of the rotating platform is provided with a corresponding positioning through hole. When the rotating platform reaches the first work position or the second work position, the pin can simultaneously pass through the group of positioning holes and the positioning through hole to achieve axial locking.

[0010] According to the technical solution provided in the embodiments of this application, the end pressing roller is provided with a pressure adjustment mechanism, which includes a spring assembly and a pressure display gauge.

[0011] According to the technical solution provided in the embodiments of this application, the guide roller group includes three sets of self-aligning rollers arranged in a triangle, with the middle roller being an elastic floating roller.

[0012] According to the technical solution provided in the embodiments of this application, the protective layer storage roller adopts a quick-change installation structure, which includes a U-shaped groove and a locking assembly.

[0013] According to the technical solution provided in the embodiments of this application, the guide roller group includes three sets of self-aligning rollers arranged in a triangle, and the self-aligning roller in the middle is an elastic floating roller.

[0014] According to the technical solution provided in the embodiments of this application, the middle part of the rotating platform is connected to a first mounting frame through a first mounting column, and the first mounting frame has an accommodating space; the elastic floating roller includes three floating single rollers that are triangularly distributed and installed on the first mounting frame.

[0015] According to the technical solution provided in the embodiments of this application, the first mounting frame has a trapezoidal groove structure, and a floating single roller is installed on each of the bottom two sides of the first mounting frame. A floating single roller is installed in the accommodating space, and the diameter of the floating single roller in the accommodating space is larger than that of the two floating single rollers installed on the outside.

[0016] According to the technical solution provided in the embodiments of this application, both the first mounting frame and the second mounting frame are provided with a pipe rotation drive mechanism. The rotation speed of the pipe rotation drive mechanism is matched with the moving speed of the winding trolley along the slide rail, so that when the pipe rotates at a constant speed around its own axis, the protective layer is spirally wound around the outer surface of the pipe with constant tension.

[0017] According to the technical solution provided in the embodiments of this application, the pipe rotation drive mechanism includes at least two sets of active drive rollers, which are evenly distributed along the circumference of the pipe and in contact with the outer wall of the pipe.

[0018] In summary, this application proposes an automatic winding device for the outer protective layer of a pipe, including a slide rail, with a first mounting bracket and a second mounting bracket symmetrically arranged on both sides of the slide rail for installing the pipe, and the extension direction of the slide rail being consistent with the axial direction of the pipe; a winding trolley is slidably mounted on the slide rail, and the winding trolley includes: a base body, the bottom of which is provided with a sliding mechanism that cooperates with the slide rail; a rotating platform is rotatably mounted on the base body via a vertical rotating shaft, and the rotating platform is used to install a winding unit, the winding unit including a protective layer storage roller, a guide roller group and an end clamping roller; the rotating platform can be in a first position and a second position, when in the first position, the end clamping roller forms a winding engagement with the pipe of the first mounting bracket; when the rotating platform rotates 180° to the second position, the end clamping roller forms a winding engagement with the pipe of the second mounting bracket.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows: This structure, through the double-sided symmetrical mounting frame of the winding trolley, enables a single device to serve two pipes simultaneously, improving the space utilization of the equipment (achieving double the production capacity in the same footprint). By rotating the rotating platform 180°, the switching time between the two workstations can be shortened to within 30 seconds. The bidirectional operation design of the end pressure roller avoids repeated disassembly and assembly of the winding components, and the overlap gap of the protective layer is accurate. Thus, this structure realizes an automatic winding device with uninterrupted and smooth processing of pipes on both sides, rapid workstation switching function, and high positioning accuracy. Attached Figure Description

[0020] Figure 1 A schematic diagram of the structure of the automatic winding device for the outer protective layer of the pipe provided in the embodiments of this application;

[0021] Figure 2 A side view of the automatic winding device for the outer protective layer of pipes provided in the embodiments of this application;

[0022] Figure 3 This is a schematic diagram of the structure of the winding trolley provided in an embodiment of this application;

[0023] Figure 4 A side view of the rotating platform and base body provided in an embodiment of this application;

[0024] Figure 5 This is a schematic diagram of the positioning hole group and the pin provided in the embodiments of this application.

[0025] The text labels in the image represent:

[0026] 1. Pipeline; 2. First mounting bracket; 3. Second mounting bracket; 31. Active drive roller; 4. Slide rail; 5. Winding trolley; 51. Base body; 511. Sliding mechanism; 512. Positioning hole group; 513. Roller mounting bracket; 52. Protective layer storage roller; 521. U-shaped groove; 522. Locking assembly; 53. Guide roller group; 531. Floating single roller; 54. First mounting frame; 55. First mounting column; 56. End clamping roller; 57. Rotating platform; 571. Positioning through hole; 58. Vertical rotating shaft; 59. Pin. Detailed Implementation

[0027] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0028] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0029] Example 1

[0030] As mentioned in the background section, in view of the problems in the prior art, this application proposes an automatic winding device for the outer protective layer of pipes, such as... Figure 1-2 As shown, it includes:

[0031] The slide rail 4 has a first mounting bracket 2 and a second mounting bracket 3 symmetrically arranged on both sides for installing the pipe 1. The extension direction of the slide rail 4 is consistent with the axial direction of the pipe 1.

[0032] A winding carriage 5, which is slidably mounted on the slide rail 4, comprises:

[0033] The base body 51 has a sliding mechanism 511 at its bottom that cooperates with the slide rail 4;

[0034] A rotating platform 57 is rotatably mounted on the base body 51 via a vertical rotating shaft 58. The rotating platform 57 is used to install a winding unit, which includes a protective layer storage roller 52, a guide roller group 53, and an end pressing roller 56.

[0035] The rotating platform 57 can be in a first working position and a second working position. When it is in the first working position, the end pressing roller 56 forms an intertwined engagement with the pipe 1 of the first mounting frame 2. When the rotating platform 57 rotates 180° to the second working position, the end pressing roller 56 forms an intertwined engagement with the pipe 1 of the second mounting frame 3.

[0036] Specifically, the slide rail 4 is made of high-strength aluminum alloy with an I-shaped cross-section and T-slots on both sides. It extends axially along the pipe 1 and is laid on the ground or a fixed support. The length can be customized according to the length of the pipe 1. The first mounting bracket 2 and the second mounting bracket 3 are symmetrically welded to both sides of the slide rail 4. They adopt a carbon steel frame structure and are equipped with a U-shaped roller assembly at the top to support and fix the pipe 1. The spacing between the mounting brackets is adjustable to accommodate pipes 1 of different lengths. In cooperation with the winding trolley 5: the surface of the slide rail 4 is coated with a low-friction coefficient coating, forming a sliding pair with the sliding mechanism 511 (such as a pulley assembly) of the winding trolley 5. The base body 51 is a rectangular frame welded from steel plates, with four sets of double-row rollers (sliding mechanism 511) installed at the bottom. The rollers are embedded in the T-slots of the slide rail 4 to ensure linear movement along the slide rail 4.

[0037] Optionally, such as Figure 4 As shown, the vertical rotating shaft 58 uses a precision bearing (such as an angular contact ball bearing) as the core of rotational support. The inner ring of the bearing is fixed to the base body 51, and the outer ring is connected to the rotating platform 57, providing low friction and high precision rotational freedom.

[0038] Specifically, workstation switching can be achieved through manual rotation or electric drive. When electric drive is used, the rotating shaft is a hollow steel shaft with internal wiring (such as power lines and sensor signal lines) to ensure that the wiring does not become tangled during rotation. The servo motor is mounted on the side of the base body 51, and its output shaft is connected to the drive gear shaft via a coupling to provide rotational power. The ring rack and drive gear: The ring rack is welded to the outer edge of the circular steel plate on the edge of the rotating platform 57. Its teeth are involute gear teeth. The drive gear is mounted on the output shaft of the servo motor and meshes with the ring rack. The servo motor drives the gear to rotate, and the meshing of the gear and rack generates tangential force, pushing the rack (i.e., the rotating platform 57) to rotate around the center of the rotating shaft, achieving 180° workstation switching. Bearings ensure that the rotating platform 57 rotates smoothly around the axis, and the drive gear-rack pair converts the rotational motion of the motor into the circular motion of the rotating platform 57.

[0039] Specifically, the protective layer storage roller 52 is installed on one side edge of the rotating platform 57 and fixed with a detachable flange. The guide roller group 53 includes three sets of self-aligning rollers distributed at 120°, with the middle roller being an elastic floating roller and the end clamping roller 56 located at the front end of the rotating platform 57, with a clamping force ranging from 50 to 200 N. First station: In the initial position of the rotating platform 57, the end clamping roller 56 is aligned with the pipe 1 of the first mounting frame 2. The protective layer is drawn out from the protective layer storage roller 52 via the guide roller group 53, and the end clamping roller 56 presses the first end of the protective layer against the surface of the pipe 1 on the first mounting frame 2. Second station: After the rotating platform 57 rotates 180°, the end clamping roller 56 switches to alignment with the pipe 1 of the second mounting frame 3, achieving continuous and uninterrupted winding at two stations.

[0040] It should be noted that when the winding direction of pipes 1 on both sides needs to be consistent, the beginning and end of pipes 1 can be set in opposite directions. For pipes 1 on the first mounting bracket 2, the direction of extension along the slide rail 4 is from left to right, with the beginning pointing to the end. For pipes 1 on the second mounting bracket 3, the direction of extension along the slide rail 4 is from left to right, with the end pointing to the beginning. When the winding trolley 5 finishes winding the outer protective layer of pipe 1 on the first mounting bracket 2 from beginning to end at the first station, the rotating platform 57 is manually rotated 180° to switch to the second station. At this time, when winding pipe 1 on the second mounting bracket 3, the direction is still from beginning to end. This ensures that the winding direction of the protective layer on pipe 1 is the same, guaranteeing process consistency.

[0041] In a preferred embodiment, the base body 51 is provided with a positioning hole group 512, and the bottom of the rotating platform 57 is provided with a corresponding positioning through hole 571. When the rotating platform 57 reaches the first work position or the second work position, the pin 59 can simultaneously pass through the positioning hole group 512 and the positioning through hole 571 to achieve axial locking.

[0042] Specifically, such as Figure 5As shown, multiple 12mm diameter positioning holes are evenly spaced on the upper surface of the base body 51, with a hole spacing of 45°. Positioning through holes 571 are 12mm diameter through holes located at the corresponding position on the bottom of the rotating platform 57, coaxial with the positioning holes of the base body 51. A T-shaped handle pin 59 is used, with a 12mm diameter head and a spring lock at the tail, automatically locking upon insertion. When the rotating platform 57 rotates to the first position (0°) or the second position (180°), the pin 59 inserts into the aligned positioning hole and through hole, restricting the axial displacement of the rotating platform 57 and preventing displacement due to vibration during winding. Quick unlocking: After pulling out the pin 59, the rotating platform 57 can rotate freely, with a position switching time of <5 seconds.

[0043] In a preferred embodiment, the end pressing roller 56 is provided with a pressure adjusting mechanism, which includes a spring assembly and a pressure display gauge.

[0044] Specifically, the end clamping roller 56 is made of 304 stainless steel with a polyurethane anti-slip layer on the surface, and is hinged to the rotating platform 57 via a hydraulic cylinder. The spring assembly consists of four sets of butterfly springs connected in parallel, with the preload adjusted by an adjusting nut (range 50-200N). A pressure display: a digital pressure sensor is embedded in the roller shaft, displaying the clamping force value in real time (accuracy ±1%). When the clamping roller contacts pipe 1, the spring assembly absorbs the impact and maintains a constant pressure. The pressure gauge monitors whether the pressure exceeds the limit, ensuring the protective layer adheres without wrinkles. The pressure adjustment mechanism prevents damage to the protective layer due to overpressure or detachment due to underpressure.

[0045] In a preferred embodiment, the protective layer storage roller 52 adopts a quick-change installation structure, which includes a U-shaped groove 521 and a locking assembly 522.

[0046] Specifically, the rotating platform 57 has a roller mounting bracket 513, and a U-shaped slot 521 is formed on the edge of the roller mounting bracket 513, the width of which is adapted to the journal of the storage roller. The locking assembly 522 is a manually operated knob-driven cam pressure block that clamps the journal and self-locks. After the journal of the protective layer storage roller 52 is inserted into the U-shaped slot 521, the rotating cam pressure block generates a radial clamping force (≥200N), enabling tool-free quick replacement.

[0047] In a preferred embodiment, the guide roller group 53 includes three sets of self-aligning rollers arranged in a triangle, with the middle roller being an elastic floating roller.

[0048] like Figure 3 As shown, the guide roller group 53 further includes three sets of self-aligning rollers arranged in a triangle, with the self-aligning roller in the middle being an elastic floating roller.

[0049] Furthermore, the center of the rotating platform 57 is connected to a first mounting frame 54 via a first mounting column 55, and the first mounting frame 54 has an accommodating space; the elastic floating roller includes three floating single rollers 531 arranged in a triangle and mounted on the first mounting frame 54.

[0050] Furthermore, the first mounting frame 54 has a trapezoidal groove structure, and a floating single roller 531 is respectively installed on both sides of the bottom of the first mounting frame 54. A floating single roller 531 is installed in the accommodating space, and the diameter of the floating single roller 531 in the accommodating space is larger than that of the two floating single rollers 531 installed on the outside.

[0051] Specifically, the first mounting frame 54 is connected to the roller mounting frame of the rotating platform 57 via the first mounting column 55. The middle floating roller dynamically adapts to changes in the tension of the protective layer, while the self-aligning rollers on both sides constrain lateral displacement, forming a coordinated guidance of "floating + constraint". The bottom width of the trapezoidal groove frame is greater than the top width, and the middle floating roller is higher than the rollers on both sides, forming a progressive guidance.

[0052] In a preferred embodiment, both the first mounting bracket 2 and the second mounting bracket 3 are provided with a pipe 1 rotation drive mechanism. The rotation speed of the pipe 1 rotation drive mechanism is matched with the moving speed of the winding trolley 5 along the slide rail 4, so that when the pipe 1 rotates at a constant speed around its own axis, the protective layer is spirally wound around the outer surface of the pipe 1 with a constant tension.

[0053] Furthermore, the rotation drive mechanism of the pipe 1 includes at least two sets of active drive rollers 31, which are evenly distributed along the circumference of the pipe 1 and in contact with the outer wall of the pipe 1.

[0054] Specifically, the active drive roller 31 is made of rubber. The active drive roller 31 rotates at a constant speed through the friction transmission pipe 1, synchronously controlling the movement speed of the trolley to ensure a constant spiral winding angle.

[0055] This document uses specific examples to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the methods and core ideas of this application. The above descriptions are only preferred embodiments of this application. It should be noted that due to the limitations of written expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of this invention, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of this application.

Claims

1. An automatic wrapping device for an external pipe coating, characterized in that include: The slide rail (4) has a first mounting bracket (2) and a second mounting bracket (3) symmetrically arranged on both sides for installing the pipe (1). The extension direction of the slide rail (4) is consistent with the axial direction of the pipe (1). A winding trolley (5) is slidably mounted on the slide rail (4), and the winding trolley (5) includes: The base body (51) has a sliding mechanism (511) at its bottom that cooperates with the slide rail (4). A rotating platform (57) is rotatably mounted on the base body (51) via a vertical rotating shaft (58). The rotating platform (57) is used to mount a winding unit, which includes a protective layer storage roller (52), a guide roller group (53), and an end pressing roller (56). The rotating platform (57) can be in a first station and a second station. When it is in the first station, the end pressing roller (56) forms an interlocking engagement with the pipe (1) of the first mounting frame (2). When the rotating platform (57) rotates 180° to the second station, the end pressing roller (56) forms an interlocking engagement with the pipe (1) of the second mounting frame (3).

2. The apparatus of claim 1, wherein: The base body (51) is provided with a positioning hole group (512), and the bottom of the rotating platform (57) is provided with a positioning through hole (571). When the rotating platform (57) reaches the first work station or the second work station, the pin (59) can pass through the positioning hole group (512) and the positioning through hole (571) at the same time to achieve axial locking.

3. The apparatus of claim 1, wherein: The end pressing roller (56) is provided with a pressure adjustment mechanism, which includes a spring assembly and a pressure display gauge.

4. The apparatus of claim 1, wherein: The guide roller group (53) includes three sets of self-aligning rollers arranged in a triangle, with the middle roller being an elastic floating roller.

5. The apparatus of claim 1, wherein: The protective layer storage roller (52) adopts a quick-change installation structure, which includes a U-shaped groove (521) and a locking assembly (522).

6. The apparatus of claim 1, wherein: The guide roller group (53) includes three sets of self-aligning rollers arranged in a triangle, with the self-aligning roller in the middle being an elastic floating roller.

7. The automatic winding device for the outer protective layer of a pipe according to claim 6, characterized in that: The rotating platform (57) is connected to a first mounting frame (54) via a first mounting column (55) in the middle. The first mounting frame (54) has a accommodating space. The elastic floating roller includes three floating single rollers (531) arranged in a triangle and installed on the first mounting frame (54).

8. An automatic wrapping device for an outer sheath of a pipe according to claim 7, characterized in that: The first mounting frame (54) has a trapezoidal groove structure. A floating single roller (531) is installed on each of the bottom two sides of the first mounting frame (54). A floating single roller (531) is installed in the accommodating space. The diameter of the floating single roller (531) in the accommodating space is larger than that of the two floating single rollers (531) installed on the outside.

9. The apparatus of claim 1, wherein: Both the first mounting bracket (2) and the second mounting bracket (3) are provided with a pipe (1) rotation drive mechanism. The rotation speed of the pipe (1) rotation drive mechanism is matched with the moving speed of the winding trolley (5) along the slide rail (4) so ​​that when the pipe (1) rotates at a constant speed around its own axis, the protective layer is spirally wound around the outer surface of the pipe (1) with constant tension.

10. An automatic wrapping device for an outer sheath of a pipe according to claim 9, characterized in that: The rotating drive mechanism of the pipe (1) includes at least two sets of active drive rollers (31), which are evenly distributed along the circumference of the pipe (1) and in contact with the outer wall of the pipe (1).

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