Fiber winding mechanism and composite pile manufacturing device

Abstract

This invention discloses a fiber winding mechanism and a manufacturing apparatus for composite piles. The fiber winding mechanism includes: a rotatable ring with a winding hole in the center allowing the pipe pile to pass through; and a pre-impregnation unit rotatably mounted on the ring and rotating with the ring along the circumference of the pipe pile to wind fibers onto the outer surface of the pipe pile. The pre-impregnation unit rotates with the ring along the circumference of the pipe pile and can rotate relative to the ring to maintain a constant angle between the pre-impregnation unit and the horizontal plane. In this invention, the fibers are firmly bonded to the circumferential wall of the pipe pile, improving the composite pile's resistance to corrosion, impact, and soil friction. Simultaneously, the pre-impregnation tank remains horizontal or at a constant angle to the horizontal plane, preventing leakage of the pre-impregnation solution.

Description

Technical Field

[0001] This invention relates to the field of composite pile technology, and in particular to a fiber winding mechanism and a composite pile manufacturing apparatus. Background Technology

[0002] Composite piles are reinforced pile foundations formed by combining different materials or technologies. For example, composite piles used in marine engineering typically consist of concrete pipe piles with composite materials such as fibers wrapped around their outer perimeter to achieve properties such as resistance to seawater impact and corrosion.

[0003] These types of composite piles are large in volume and mass. For example, composite piles used in marine engineering are typically over ten meters long and weigh over five tons. There are significant challenges in winding fibers around these large composite piles. To wind the fibers around the outer circumference of the pipe pile, the winding mechanism connected to the fibers needs to rotate around the pipe pile, or the pipe pile needs to be inserted into the winding mechanism and rotate on its own axis, so that the fibers connected to the winding mechanism are wound onto the surface of the workpiece.

[0004] However, due to the large volume and mass of these pipe piles, they cannot be clamped and rotated by a clamping mechanism, making it impossible to wind fibers through pipe pile rotation. Therefore, existing solutions typically involve keeping the pipe pile fixed and using a winding mechanism that rotates around the pile to wind fibers onto it, followed by applying resin or other materials to the fibers. This method suffers from defects such as uneven resin application, resulting in uneven resin thickness across the fiber layer after curing, affecting the performance of the composite pile, and also exhibiting weak adhesion between the fiber layer and the pipe pile.

[0005] In summary, how to wind fibers onto large pipe piles and ensure that materials such as resin are evenly distributed throughout the fibers is an urgent problem to be solved. Summary of the Invention

[0006] In view of the above-mentioned shortcomings of the prior art, the technical problem to be solved by the present invention is to provide a fiber winding mechanism and a composite pile manufacturing device to solve the problems of difficulty in winding fibers and ensuring uniform resin coating in large pipe piles in the prior art.

[0007] The technical solution adopted by the present invention to solve its technical problem is a fiber winding mechanism for winding fibers onto the outer surface of a pipe pile, the fiber winding mechanism comprising:

[0008] A rotatable swivel ring having a winding hole that allows the pipe pile to pass through;

[0009] The prepreg unit stores prepreg liquid, and fibers can be immersed in the prepreg liquid, then pass through and be drawn to the outer surface of the pipe pile. The prepreg unit is rotatably mounted on the rotating ring and rotates with the rotating ring along the circumference of the pipe pile to wind the fibers to the outer surface of the pipe pile.

[0010] The prepreg unit rotates circumferentially along the pipe pile following the rotating ring, and the prepreg unit can rotate relative to the rotating ring so that the angle between the prepreg unit and the horizontal plane remains constant.

[0011] The present invention has at least the following beneficial effects:

[0012] The pipe pile passes through the winding hole of the rotating ring. The rotating ring rotates, causing the fibers to wind around the outer circumference of the pipe pile. Through pre-impregnation, the fibers are immersed in pre-impregnating liquid before passing through. The pre-impregnating liquid can evenly cover the inner and outer sides of the fibers. When the fibers are wound around the pipe pile, the pre-impregnating liquid on the inner side of the fibers acts as a binder, firmly adhering the fibers to the circumference of the pipe pile, enhancing the connection strength, and improving the composite pile's resistance to corrosion, impact, and soil friction. Simultaneously, the pre-impregnating unit is rotatably mounted on the rotating ring. As the rotating ring rotates around the pipe pile, the pre-impregnating unit can rotate in the opposite direction relative to the rotating ring, thus ensuring that the pre-impregnating tank remains horizontal or at a constant angle to the horizontal plane, preventing pre-impregnating liquid leakage.

[0013] Furthermore, it also includes an angle-holding unit, which comprises:

[0014] The retaining ring has a first toothed ring.

[0015] A variable speed gear set that meshes with the first gear ring, the variable speed gear set including at least one follower gear opposite to the rotation direction of the rotating ring, and the pre-impregnation unit is disposed on the follower gear.

[0016] Furthermore, the gear set includes a follower gear that meshes with the first gear ring, and the pre-impregnation unit is disposed on the follower gear;

[0017] Alternatively, the gear set may include a plurality of sequentially meshing follower gears, and the number of follower gears may be odd. The follower gear located at the beginning of the gear set meshes with the first gear ring, and the pre-impregnation unit may be disposed on the follower gear located at the end of the gear set.

[0018] Furthermore, it also includes an angle-holding unit, which comprises:

[0019] A retainer rotatably mounted on the swivel ring, wherein the prepreg unit is mounted on the retainer;

[0020] A first drive motor is used to drive the cage and the prepreg unit to rotate in a second direction.

[0021] Furthermore, the prepreg unit includes a guide with a guide opening through which the fiber can pass and be drawn to the pipe pile;

[0022] The length direction of the fiber between the guide port and the pipe pile is the winding direction. The projection of the guide along the winding direction is the first projection. The projection of the fiber between the guide port and the pipe pile along the winding direction is the second projection. The second projection is located at the outer edge of the first projection.

[0023] Furthermore, the prepreg unit also includes a fiber storage rack for storing fibers and a prepreg tank for containing prepreg solution;

[0024] The pre-impregnation tank has an opening at its upper end, and a cover plate is provided at the opening. The cover plate has an inlet and an outlet. The fibers on the fiber storage rack can enter the pre-impregnation tank through the inlet and exit the pre-impregnation tank through the outlet.

[0025] Furthermore, the prepreg unit includes a fiber storage rack for storing fibers, a prepreg tank for containing prepreg solution, and a guide;

[0026] The fiber winding mechanism also includes a second drive motor for driving the rotating ring to rotate, so as to pull the fibers on the fiber storage rack through the prepreg tank and the guide in sequence and wind them into the pipe pile.

[0027] Furthermore, a plurality of prepreg units are provided on the rotating ring, and the plurality of prepreg units are evenly distributed along the circumference of the winding hole.

[0028] Furthermore, a manufacturing apparatus for composite piles is also disclosed, characterized in that it includes at least one fiber winding mechanism and a support mechanism for supporting the pipe pile, wherein the support mechanism includes a first support frame and a second support frame located on opposite sides of the fiber winding mechanism.

[0029] Furthermore, the minimum distance between the first support frame and the second support frame is greater than the distance from the center of gravity of the pipe pile to either end of it;

[0030] And / or, both the first support frame and the second support frame are provided with a conveyor belt and / or conveyor rollers to drive the pipe pile through the winding hole in the direction of the first support frame facing the second support frame;

[0031] And / or, the manufacturing apparatus further includes a curing unit disposed between the second support frame and the fiber winding mechanism, the curing unit including a heating element and / or a light-emitting element for curing the prepreg bonded to the fiber; the curing unit has a curing hole that allows the pipe pile to pass through, the curing hole being coaxially arranged with the winding hole.

[0032] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0033] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0034] Figure 1 This is a schematic diagram of the manufacturing apparatus in an embodiment of the present invention;

[0035] Figure 2 This is a cross-sectional view of the fiber winding mechanism in an embodiment of the present invention;

[0036] Figure 3 This is a schematic diagram of the structure of a portion of the fiber winding mechanism in an embodiment of the present invention;

[0037] Figure 4 This is a schematic diagram of the prepreg unit in an embodiment of the present invention;

[0038] Figure 5 This is a schematic diagram of the angle holding unit, the fixed ring, and the rotating ring in an embodiment of the present invention;

[0039] Reference numerals: 100, fiber winding mechanism; 110, fixing ring; 111, first gear ring; 120, swivel ring; 121, second gear ring; 130, prepreg unit; 131, fiber storage rack; 132, prepreg tank; 133, guide; 140, follower gear; 200, pipe pile; 300, detection mechanism; 400, first support frame; 410, second support frame; 500, fiber. Detailed Implementation

[0040] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0041] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0042] In the description of this invention, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0043] In the description of this invention, unless otherwise explicitly defined, terms such as "setting," "installing," and "connecting" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0044] In the description of this invention, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0045] Please refer to Figure 2 This embodiment discloses a fiber winding mechanism 100 for winding fibers 500 onto the outer surface of a pipe pile 200. The fiber winding mechanism 100 includes:

[0046] A rotatable swivel ring 120 has a winding hole that allows the pipe pile 200 to pass through;

[0047] The prepreg unit 130 stores prepreg liquid. Fiber 500 can be immersed in the prepreg liquid and then pass through and be pulled to the outer surface of the pipe pile 200. The prepreg unit 130 is rotatably mounted on the rotating ring 120 and rotates with the rotating ring 120 along the circumference of the pipe pile 200 to wind the fiber 500 to the outer surface of the pipe pile 200.

[0048] The prepreg unit 130 rotates around the circumference of the pipe pile 200 along with the rotating ring 120, and the prepreg unit 130 can rotate relative to the rotating ring 120 so that the angle between the prepreg unit 130 and the horizontal plane remains constant.

[0049] Specifically, in this embodiment, a rotating ring 120 is provided, through which the pipe pile 200 passes. The rotating ring 120 rotates and drives the fiber 500 to wind around the outer periphery of the pipe pile 200. Through pre-impregnation, the fiber 500 is immersed in pre-impregnated liquid and then passes through. The pre-impregnated liquid can evenly cover the inner and outer sides of the fiber 500. When the fiber 500 is wound on the pipe pile 200, the pre-impregnated liquid on the inner side of the fiber 500 can play a bonding role, so that the fiber 500 is firmly bonded to the peripheral wall of the pipe pile 200, enhancing the connection strength and improving the corrosion resistance, impact resistance and soil friction resistance of the composite pile.

[0050] It should be noted that the preimpregnating solution needs to be placed in the preimpregnating tank 132, and the fibers 500 need to enter the preimpregnating tank 132 to be immersed in the preimpregnating solution to achieve preimpregnation. However, the preimpregnating tank 132 is usually fixed on the ground or in the factory. If the preimpregnated fibers 500 are rolled up and then loaded into the fiber winding mechanism 100 for winding, the winding, handling and installation of the fibers 500 will take a lot of time. The fibers 500 cannot be wound onto the pipe pile 200 in time, the preimpregnating solution may solidify prematurely and fail to adhere to the pipe pile 200, and the fibers 500 will stick together after winding, and the preimpregnating solution will be squeezed out, which will seriously affect the performance of the composite pile. If the pre-impregnated fiber 500 is directly drawn to the rotating ring 120, the fiber 500 that passes through the rotating ring 120 can be wound around the pipe pile 200 in an orderly manner. However, during the rotation of the rotating ring 120, the fiber 500 that has not yet passed through the ring cannot pass over the pipe pile 200 and be wound around the pipe pile 200, thus failing to achieve orderly winding.

[0051] Based on this, in this embodiment, the prepreg unit 130 is set on the rotating ring 120 and rotates around the pipe pile 200 together with the rotating ring 120, so that the fiber 500 can be quickly wound around the pipe pile 200 after being soaked in the prepreg liquid in the prepreg unit 130.

[0052] It is understandable that if the prepreg unit 130 is fixed to the rotating ring 120, its revolution around the pipe pile 200 is accompanied by its own rotation or can be understood as the flipping of the prepreg unit 130. This presents a problem that must be overcome: the prepreg liquid is stored in the prepreg tank 132. During the flipping of the prepreg unit 130, the prepreg tank 132 may tilt at an excessive angle or even become inverted. Since the prepreg tank 132 needs to allow the fibers 500 to continuously enter and exit, it cannot be completely sealed. Therefore, when the prepreg tank 132 tilts at an excessive angle or becomes inverted, a large amount or all of the prepreg liquid will inevitably leak out, making it impossible to achieve continuous prepreg of the fibers 500.

[0053] Therefore, to overcome the aforementioned problems, this embodiment rotatably mounts the pre-impregnation unit 130 on the rotating ring 120. As the rotating ring 120 rotates around the pipe pile 200, the pre-impregnation unit 130 can rotate relative to the rotating ring 120 in a direction opposite to the rotation direction of the rotating ring 120. This allows the pre-impregnation unit 130 to maintain a constant angle while rotating with the rotating ring 120 around the pipe pile 200, preventing leakage of the pre-impregnation liquid and enabling the continuous and smooth implementation of this solution. The constant angle between the pre-impregnation unit 130 and the horizontal plane means that the angle between a component of the pre-impregnation unit 130 and the horizontal plane remains constant and does not change with the rotation of the rotating ring 120. For example, the angle between the bottom surface of the pre-impregnation tank 132, used to hold the pre-impregnation liquid, and the horizontal plane remains constant. This angle can be maintained at 0° or other angles. When the angle is 0°, the bottom surface of the pre-impregnation tank 132 is parallel to the horizontal plane.

[0054] Please refer to Figure 5 In this embodiment, an angle holding unit is included, which includes:

[0055] The retaining ring 110 has a first toothed ring 111.

[0056] The gear set meshes with the first gear ring 111. The gear set includes at least one follower gear 140 that rotates in the opposite direction to the rotation of the rotating ring 120, and the pre-impregnation unit 130 is disposed on the follower gear 140.

[0057] Specifically, the fixed ring 110 is fixedly installed, and the rotating ring 120 is rotatably installed on the fixed ring 110. When the rotating ring 120 rotates, the speed-changing gear set meshing with the first gear ring 111 rotates accordingly, thereby driving the prepreg unit 130 to rotate in the opposite direction to the rotation direction of the rotating ring 120, so that the prepreg unit 130 can maintain a constant angle during the rotation of the rotating ring 120 around the pipe pile 200.

[0058] Importantly, the power for the rotation of the follower gear 140 comes from the rotation of the rotating ring 120 itself. This means that when the rotating ring 120 rotates, it synchronously drives the follower gear 140, which meshes with the first gear ring 111, to rotate. When the rotating ring 120 stops rotating, the follower gear 140 also stops rotating. When the rotational speed of the rotating ring 120 changes, the rotational speed of the follower gear 140 also changes. In other words, the follower gear 140 can rotate, stop, and change its rotational speed with the rotating ring 120, achieving synchronous rotation. This ensures that the prepreg unit 130 remains at a constant angle at all times, preventing the prepreg liquid in the prepreg tank 132 from spilling out.

[0059] Please refer to Figure 2In this embodiment, the gear set includes a follower gear 140 that meshes with the first gear ring 111, and the pre-impregnation unit 130 is disposed on the follower gear 140.

[0060] Alternatively, the gear set includes a plurality of sequentially meshing follower gears 140, and the number of follower gears 140 is odd. The follower gear 140 at the beginning of the gear set meshes with the first gear ring 111, and the pre-impregnation unit 130 is disposed on the follower gear 140 at the end of the gear set.

[0061] Specifically, when a follower gear 140 is set, if the rotating ring 120 rotates clockwise around the pipe pile 200, the rotation direction of the follower gear 140 is counterclockwise, which in turn drives the prepreg unit 130 on the follower gear 140 to also rotate counterclockwise, so that the prepreg unit 130 maintains a constant angle.

[0062] When three follower gears 140 are set, if the rotating ring 120 rotates clockwise around the pipe pile 200, the follower gear 140 that meshes with the first gear ring 111 at the beginning rotates counterclockwise, the follower gear 140 in the middle rotates clockwise, and the follower gear 140 at the end rotates counterclockwise, thus driving the prepreg unit 130 set on it to rotate counterclockwise, so that the prepreg unit 130 maintains a constant angle.

[0063] In other words, setting the number of follower gears 140 in the gear set to an odd number is to ensure that, regardless of whether the pre-impregnation unit 130 has a clockwise or counterclockwise rotation tendency, the rotation direction of the last follower gear 140 in the gear set is opposite to the rotation direction of the rotating ring 120, thereby driving the pre-impregnation unit 130 to rotate in the opposite direction, so that it is in a constant angle state.

[0064] In some other embodiments, an angle holding unit is also included, which includes:

[0065] A retainer is rotatably mounted on the rotating ring 120, and a prepreg unit 130 is mounted on the retainer;

[0066] The first drive motor is used to drive the cage and prepreg unit 130 to rotate in the second direction.

[0067] Specifically, the angle-maintaining unit can also drive the prepreg unit 130 to rotate via the first drive motor, maintaining a constant angle. Simultaneously, to control the speed at which the first drive motor drives the prepreg unit 130 to rotate in the opposite direction based on the rotational speed of the rotating ring 120, ensuring a constant angle, the rotational speed and direction of the first drive motor can be controlled via a control module. For example, a sensor can be set to collect the angular velocity of the rotating ring 120 and send a signal to the control module. The control module calculates the required reverse rotational speed of the prepreg unit 130 to maintain a constant angle based on the angular velocity of the rotating ring 120, and then controls the first drive motor to drive the prepreg unit 130 to rotate based on the calculated rotational speed.

[0068] Please refer to Figure 3 and Figure 4 In this embodiment, the prepreg unit 130 includes a guide 133, which has a guide opening, through which the fiber 500 can pass and be pulled to the pipe pile 200.

[0069] The length direction of the fiber 500 located between the guide port and the pipe pile 200 is the winding direction. The projection of the guide 133 along the winding direction is the first projection. The projection of the fiber 500 located between the guide port and the pipe pile 200 along the winding direction is the second projection. The second projection is located at the outer edge of the first projection.

[0070] Specifically, the unwound fiber 500 is drawn onto the pipe pile 200 via the guide opening of the guide 133. To prevent the fiber 500 from getting tangled on the guide 133, this embodiment places the second projection at the edge of the first projection, allowing the fiber 500 to wrap around the pipe pile 200 without getting tangled on the guide 133. The second projection is the projection of the fiber 500 along its length between the guide opening and the pipe pile 200. This projection image is a cross-section of the fiber, located at the outer edge of the second projection. This allows the fiber to bypass the area of ​​the guide corresponding to the first projection during winding, thus allowing it to smoothly wrap around the pipe pile.

[0071] Furthermore, the guide 133 is provided with a guide channel that allows the fiber 500 to pass through. The guide channel can be configured as a channel with a constant orientation, or as a channel formed by multiple channels with different orientations but interconnected, or as a channel that is curved in one continuous section.

[0072] Please refer to Figure 3The guide 133 is oriented parallel to the length of the pipe pile 200, or inclined towards or away from the pipe pile 200 along its length. When the guide 133 rotates once with the rotating ring 120, the fiber 500 also wraps around the pipe pile 200 once. At this time, the unwound fiber 500 twists once, but can pass over the guide 133, preventing the fiber 500 from becoming entangled on the guide 133. Simultaneously, the fiber 500 wrapped around the pipe pile 200 is filamentous (although attached...). Figure 1 The fiber 500 is sheet-like (this is for the purpose of making the position of the fiber 500 clearer and does not limit the shape of the fiber 500). The filamentous fiber 500 is twisted and wound around the pipe pile 200. The twisting causes the stress of the fiber 500 to be dispersed along the axial and circumferential directions when under force, reducing local stress concentration, improving its impact resistance and soil friction resistance. It can also form a spiral structure during torsional deformation to achieve elastic energy storage and release, absorb more dynamic energy, and improve seismic or impact resistance.

[0073] Of course, in order to avoid excessive twisting of the fiber 500, the size of the guide channel in the guide 133 through which the fiber 500 passes can be set to be slightly larger than the size of the fiber 500, so that the twisting of the fiber 500 can be transmitted through the guide channel to the fiber 500 on the prepreg tank 132 and the fiber storage rack 131, thereby dispersing the twisting of the fiber 500 over a larger area.

[0074] Furthermore, the angle of the guide 133 is adjustable. For example, the guide 133 has a connecting end and a lead-out end that are opposite to each other. The fiber 500 extends into the guide 133 from the connecting end or the side and extends out from the lead-out end. The connecting end is hinged to the prepreg tank 132 or other support components. The guide 133 can be rotated about the connecting end as an axis to adjust the lead-out direction of the lead-out end, thereby adjusting the angle between the fiber 500 and the surface of the pipe pile 200 during winding.

[0075] In this embodiment, the prepreg unit 130 further includes a fiber storage rack 131 for storing fibers 500 and a prepreg tank 132 for containing prepreg liquid;

[0076] The pre-impregnation tank 132 has an opening at the top, and a cover plate is provided at the opening. The cover plate has an inlet and an outlet. Fibers 500 on the fiber storage rack 131 can enter the pre-impregnation tank 132 through the inlet and exit the pre-impregnation tank 132 through the outlet.

[0077] Specifically, a cover plate is installed at the opening, with an inlet and outlet at the cover plate for the fiber 500 to pass through, thereby maximizing the sealing of the opening and preventing the prepreg liquid from sloshing and overflowing as the prepreg tank 132 rotates around the pipe pile 200. At the same time, the cover plate can be flipped or removed to open the opening for adding prepreg liquid.

[0078] In this embodiment, the prepreg unit 130 includes a fiber storage rack 131 for storing fibers 500, a prepreg tank 132 for containing prepreg liquid, and a guide 133.

[0079] The fiber winding mechanism 100 also includes a second drive motor for driving the rotating ring 120 to rotate, so as to pull the fiber 500 on the fiber storage rack 131 through the prepreg tank 132 and the guide 133 in sequence and wind it into the pipe pile 200.

[0080] Specifically, the second drive motor is mounted on the rotating ring 120, and the second gear ring 121 is mounted on the fixed ring 110. A gear meshing with the second gear ring 121 is mounted on the output shaft of the second drive motor. The rotation of the gear can drive the rotating ring 120 to rotate relative to the fixed ring 110. Alternatively, the second drive motor is mounted on the fixed ring 110, and the second gear ring 121 is mounted on the rotating ring 120. A gear meshing with the second gear ring 121 is mounted on the output shaft of the second drive motor. The rotation of the gear can drive the rotating ring 120 to rotate relative to the fixed ring 110.

[0081] Importantly, the second drive motor can also pull the fiber 500 out of the fiber storage rack 131, and after passing through the preimpregnation tank 132 and the guide 133, it is wound onto the pipe pile 200, achieving synchronous preimpregnation and winding. When the winding speed changes or winding is paused, the preimpregnation speed of the fiber 500 also changes or stops accordingly. At the same time, it can also save the power source for pulling the fiber 500 for preimpregnation.

[0082] Please refer to Figure 2 In this embodiment, a plurality of prepreg units 130 are provided on the rotating ring 120, and the plurality of prepreg units 130 are evenly distributed along the circumference of the winding hole.

[0083] Please refer to Figure 1 This embodiment also discloses a composite pile manufacturing apparatus, including at least one fiber winding mechanism 100 and a support mechanism for supporting the pipe pile 200. The support mechanism includes a first support frame 400 and a second support frame 410 located on opposite sides of the fiber winding mechanism 100.

[0084] The minimum distance between the first support frame 400 and the second support frame 410 is greater than the distance from the center of gravity of the pipe pile 200 to either end thereof; and / or, both the first support frame 400 and the second support frame 410 are provided with conveyor belts and / or conveyor rollers to drive the pipe pile 200 through the winding hole in the direction of the first support frame 400 facing the second support frame 410; and / or, the manufacturing apparatus further includes a curing unit disposed between the second support frame 410 and the fiber winding mechanism 100, the curing unit including a heating element and / or a light-emitting element for curing the prepreg bonded to the fiber 500; the curing unit has a curing hole that allows the pipe pile 200 to pass through, and the curing hole is coaxially arranged with the winding hole.

[0085] This embodiment is designed for large pipe piles 200, which are typically over ten meters long and have a large mass, making it impossible to transport the pipe piles 200 by clamping. Based on this, this embodiment uses a first support frame 400 and a second support frame 410 to support the pipe piles 200. The first support frame 400 and the second support frame 410 are respectively arranged on both sides of the fiber winding mechanism 100. Specifically, before winding, the pipe pile 200 is transported to the first support frame 400 by lifting equipment and other devices, and driven to move along its length by a conveyor belt and / or conveyor rollers. The front end of the pipe pile 200 gradually extends out of the first support frame 400 and into the winding hole. At this time, the rotating ring 120 of the fiber winding mechanism 100 starts to rotate and winds the fiber 500 onto the pipe pile 200. As the pipe pile 200 moves gradually and the fiber winding mechanism 100 winds synchronously, the front end of the pipe pile 200 reaches the second support frame 410. At this time, the end of the pipe pile 200 has not yet detached from the first support frame 400. The first support frame 400 and the second support frame 410 support the pipe pile 200 at the same time. When the end of the pipe pile 200 detaches from the first support frame 400, the second support frame 410 can independently support the pipe pile 200.

[0086] In this design, the distance from the center of gravity of the pipe pile 200 to both ends is greater than the minimum distance between the first support frame 400 and the second support frame 410. This ensures that the second support frame 410 supports the pipe pile 200 before its center of gravity detaches from the first support frame 400; and that the pipe pile 200's center of gravity is supported by the second support frame 410 before it detaches from the first support frame 400. When the center of gravity of the pipe pile 200 is suspended in the air, both the first support frame 400 and the second support frame 410 simultaneously support it. This prevents the pipe pile 200 from falling off either the first support frame 400 or the second support frame 410, thus replacing the clamping mechanism and solving the problem of clamping the pipe pile 200 due to its excessive length and mass.

[0087] In this embodiment, the light-emitting element in the curing unit is an irradiation device that emits ultraviolet (UV) light or electron beam (EB). The UV light or electron beam (EB) induces the photosensitizer to generate free radicals or cations, causing the prepreg, such as resin, to polymerize. The heating element includes a heating wire or heating plate, which initiates a chemical reaction between the resin and the curing agent through heating.

[0088] Specifically, during the movement of the pipe pile 200, it passes through the winding hole and the curing hole in sequence. The wound fiber 500 can be covered by the light-emitting element and / or heat-generating element in the curing hole in time to cure the pre-impregnated liquid attached to the fiber 500, thereby bonding the fiber 500 to the outer surface of the pipe pile 200 and forming a fiber 500 protective layer on the surface of the pipe pile 200, which plays the role of impact resistance, corrosion resistance and soil friction resistance.

[0089] Furthermore, a detection mechanism 300 is provided between the curing unit and the second support frame 410 to check whether the fibers 500 are fully laid on the pipe pile 200 after curing, and whether there are air bubbles after the pre-impregnated liquid has cured. The detection mechanism 300 can perform detection through visual inspection methods, such as scanning the distribution of the fiber bundles 500 in real time using a high-resolution camera or laser profilometer, and combining this with image processing algorithms (such as edge detection and morphological analysis) to determine whether the fibers 500 uniformly cover the target area. Of course, detection can also be performed using techniques such as acoustic wave detection, X-ray scanning detection, and pressure detection.

[0090] Furthermore, a sensor (such as a distance sensor) is installed at the location of the curing unit to detect the position of the pipe pile 200. When the front end of the pipe pile 200 reaches the sensor, the curing unit automatically opens; when the pipe pile 200 leaves, the curing unit automatically closes. Of course, in order to open the curing unit before the pipe pile 200 enters the curing hole, so that the curing unit has time to reach the optimal curing state, the sensor can also be placed at a certain distance from the curing hole. When the pipe pile 200 has not yet entered the curing hole, the sensor can detect the position of the pipe pile 200 and open the curing unit in advance.

[0091] The composite pile in this embodiment is applied in fields such as marine engineering, and requires the composite pile to have the ability to resist seawater corrosion, seawater impact, and soil friction. Based on this, the composite pile includes a centrifugally formed concrete pipe pile 200 and a fiber 500 protective layer wound around the outer surface of the pipe pile 200. The fiber 500 is made of glass fiber 500, carbon fiber 500, basalt fiber 500, etc., and the prepreg used to soak the fiber 500 before winding is epoxy resin, vinyl ester resin, unsaturated resin, polyurethane, etc. The pipe pile 200 is cylindrical, cuboid, or other shapes.

[0092] It must also be emphasized that in this case, the composite pile involves winding the fiber 500 around the outer surface of the pre-formed pipe pile 200. The fiber 500 is on the outermost side, serving to protect the pipe pile 200. This is fundamentally different from the method of winding the fiber 500 around a mold before pouring concrete. For example, in the method of winding first and then pouring, the fiber 500 is inside the pipe pile 200 after forming, serving to increase the strength of the pipe pile 200, but it cannot be on the outermost side of the pipe pile 200 to provide protection.

[0093] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments, and various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention. Furthermore, the embodiments of the present invention and the features thereof can be combined with each other unless otherwise specified.

Claims

1. A fiber winding mechanism for winding a fiber on an outer surface of a tubular pile, characterized by, The fiber winding mechanism includes: A rotatable swivel ring having a winding hole that allows the pipe pile to pass through; The prepreg unit stores prepreg solution, through which fibers can be immersed and pulled to the outer surface of the pipe pile. The prepreg unit is rotatably mounted on the rotating ring and rotates with the rotating ring along the circumference of the pipe pile to wind the fibers to the outer surface of the pipe pile. The prepreg unit can rotate relative to the rotating ring to keep the angle between the prepreg unit and the horizontal plane constant. An angle holding unit includes: a fixed ring with a first gear ring; a variable speed gear set disposed on the rotating ring and meshing with the first gear ring, the variable speed gear set including at least one follower gear whose rotation direction is opposite to the rotation direction of the rotating ring, and the pre-impregnation unit disposed on the follower gear; or, the angle holding unit includes: a retainer rotatably disposed on the rotating ring, the pre-impregnation unit disposed on the retainer; a first drive motor for driving the retainer to rotate, and the rotation direction of the retainer being opposite to the rotation direction of the rotating ring.

2. The fiber winding mechanism according to claim 1, characterized by, The gear set includes a follower gear that meshes with the first gear ring, and the pre-impregnation unit is disposed on the follower gear; Alternatively, the gear set may include a plurality of sequentially meshing follower gears, and the number of follower gears may be odd. The follower gear located at the beginning of the gear set meshes with the first gear ring, and the pre-impregnation unit may be disposed on the follower gear located at the end of the gear set.

3. The fiber winding mechanism of claim 1, wherein, The prepreg unit includes a guide with a guide opening through which the fiber can pass and be drawn to the pipe pile by the guide opening; The length direction of the fiber between the guide port and the pipe pile is the winding direction. The projection of the guide along the winding direction is the first projection. The projection of the fiber between the guide port and the pipe pile along the winding direction is the second projection. The second projection is located at the outer edge of the first projection.

4. The fiber winding mechanism according to claim 1, characterized in that, The prepreg unit also includes a fiber storage rack for storing fibers and a prepreg tank for containing the prepreg solution; The pre-impregnation tank has an opening at its upper end, and a cover plate is provided at the opening. The cover plate has an inlet and an outlet. The fibers on the fiber storage rack can enter the pre-impregnation tank through the inlet and exit the pre-impregnation tank through the outlet.

5. The fiber winding mechanism according to claim 1, characterized in that, The prepreg unit includes a fiber storage rack for storing fibers, a prepreg tank for containing prepreg solution, and a guide. The fiber winding mechanism also includes a second drive motor for driving the rotating ring to rotate, so as to pull the fibers on the fiber storage rack through the prepreg tank and the guide in sequence and wind them into the pipe pile.

6. The fiber winding mechanism according to claim 1, characterized in that, Multiple prepreg units are provided on the rotating ring, and the multiple prepreg units are evenly distributed along the circumference of the winding hole.

7. A manufacturing apparatus for composite piles, characterized in that, The device includes at least one fiber winding mechanism as described in any one of claims 1-6, and further includes a support mechanism for supporting the pipe pile, the support mechanism including a first support frame and a second support frame located on opposite sides of the fiber winding mechanism.

8. The composite pile manufacturing apparatus according to claim 7, characterized in that, The minimum distance between the first support frame and the second support frame is greater than the distance from the center of gravity of the pipe pile to either end of the pile. And / or, both the first support frame and the second support frame are provided with a conveyor belt and / or conveyor rollers to drive the pipe pile through the winding hole in the direction of the first support frame facing the second support frame; And / or, the manufacturing apparatus further includes a curing unit disposed between the second support frame and the fiber winding mechanism, the curing unit including a heating element and / or a light-emitting element for curing the prepreg bonded to the fiber; the curing unit has a curing hole that allows the pipe pile to pass through, the curing hole being coaxially arranged with the winding hole.

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