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CN-117261294-B - Application method of fiber twisting in braiding winding pultrusion pipeline

CN117261294BCN 117261294 BCN117261294 BCN 117261294BCN-117261294-B

Abstract

The invention provides an application method of a fiber twisting and winding pultrusion pipeline, which comprises the steps of enabling high-strength fibers to pass through a creel according to the sequence of high and low, twisting untwisted fiber bundles into twisted fiber bundles through a braiding spool by adopting a ring spindle yarn twisting machine, winding round fiber bundles by adopting a winding machine, forming a winding layer on the surface of a mandrel, loading the twisted fiber spool onto each spindle position of the braiding machine for braiding, forming a braiding layer on the surface of the winding layer, injecting thermosetting unsaturated resin through a heating die, setting the temperature of different areas through a die heating system, solidifying and forming a product, demoulding the product by a traction machine, pulling out the surface of the twisted high-performance fiber bundles, and enabling the surface of the twisted high-performance fiber bundles to be smooth, wear-resistant and difficult to be fluffed during braiding by the braiding machine, so that the yarn breakage rate is greatly reduced, the labor intensity of a worker for yarn grafting is reduced, and the fluffing amount of the twisted high-performance fiber yarns is reduced, and pollution of the high-performance fiber hairiness to the working environment is reduced.

Inventors

  • XI XINFU
  • TAN JUNFENG
  • SUN YIZE
  • MENG CHUO
  • SUN ZHIJUN

Assignees

  • 东华大学

Dates

Publication Date
20260505
Application Date
20231025

Claims (6)

  1. 1. An application method of fiber twisting in weaving winding pultrusion pipeline is characterized by comprising the following steps: step 1, high-strength fiber raw yarn (10) passes through a creel (8) according to the sequence of the height, a plurality of positioning holes are arranged on the creel (8) in an array, a plurality of bearings (54) are arranged in the positioning holes, the bearings (54) are rotationally connected with a mounting shaft (81), the mounting shaft (81) is connected with a yarn cylinder (82), the yarn cylinder (82) is a segmented yarn cylinder, the yarn cylinder (82) comprises a plurality of cylinder bodies (821), through holes are formed in the cylinder bodies (821) in a penetrating mode, the through holes are matched with the mounting shaft (81), a detachable mechanism is arranged on the mounting shaft (81), the detachable mechanism comprises a first working cavity (21), a second working cavity (22) and a third working cavity (23) which are arranged in the mounting shaft (81), the upper end of the first working cavity (21) is rotationally connected with a first belt wheel (19) and a first worm (17), the first worm (17) is rotationally connected with the lower end of the first working cavity (21), a first worm wheel (16) is meshed with the left side and the right side of the first worm (17), the first worm wheel (16) is in threaded connection with a first threaded rod (14) in threaded connection with a threaded section (14), one end of the first rotating rod (13) far away from the first threaded rod (14) is rotationally connected with the extrusion block (12), the extrusion block (12) penetrates through the side end of the first working cavity (21) and is fixedly connected with the middle part of the elastic strip (11), and the front end and the rear end of the elastic strip (11) are in sliding connection with the mounting shaft (81); The left side and the right side of the front end of the working cavity II (22) are communicated with buffer grooves (25), buffer blocks (27) are slidably arranged in the buffer grooves (25), a spring II (26) is fixedly arranged between the buffer blocks (27) and the buffer grooves (25), one end, far away from the spring II (26), of the buffer blocks (27) is rotationally connected with a connecting rod (28), the connecting rod (28) is fixedly connected with a worm wheel II (31), the worm wheel II (31) is meshed with a worm II (30), the worm wheel II (31) is fixedly connected with a thread sleeve II (32), the thread sleeve II (32) is in threaded connection with a thread section of a threaded rod II (33), a cylindrical section of the threaded rod II (33) is slidably connected with a rotating rod II (34), the middle part of the rotating rod II (34) is rotationally connected with a supporting rod (41), the supporting rod (41) is fixedly arranged at the rear end of the working cavity II (22), one side, far away from the threaded rod II (33), of the sliding rod II (35) is provided with a sliding cavity (36) in a penetrating manner, and the sliding cavity (36) is slidably connected with a sliding shaft (36), and the sliding shaft (36) is rotationally connected with a mounting rod. The working cavity III (23) is communicated with the through hole (24), the through hole (24) is communicated with the left side and the right side of the rear end of the working cavity II (22), the mounting rod penetrates through the through hole (24) and is fixedly connected with the guide block I (37), the guide block I (37) is slidably connected with the guide block II (38), the guide block II (38) is slidably arranged in the working cavity III (23), one end of the guide block II (38) far away from the guide block I (37) is fixedly connected with the fixing rod (39), the fixing rod (39) is slidably connected with the fixing block (40) in the working cavity III (23), the fixing rod (39) penetrates through the side end of the working cavity III (23) and is rotationally connected with the guide ball (53), the guide ball (53) is in contact with the annular groove II, the annular groove II is arranged in a positioning hole on the yarn frame (8), and the belt wheel I (19) and the worm II (30) are driven by an independent driving mechanism; The independent driving mechanism comprises a driving block (51), the driving block (51) is fixedly connected with the fixed end of a telescopic rod (46), the fixed end of the telescopic rod (46) is rotationally connected with the upper end of a working cavity II (22), the movable end of the telescopic rod (46) enters a connecting hole (50) in the working cavity II (22) and is matched with a groove (42) in a rotating sleeve (48), clamping grooves (49) are symmetrically communicated at the left end and the right end of the connecting hole (50), limiting blocks are symmetrically arranged at the front end and the rear end of the groove (42), the rotating sleeve (48) is fixedly connected with a belt wheel II (29), the belt wheel II (29) is connected with a belt wheel I (19) through a conveying belt (20), a communication hole for the conveying belt (20) to pass through is arranged between the working cavity I (21) and the working cavity II (22), the rotating sleeve (48) is rotationally connected with the fixed sleeve (52), the fixed sleeve (52) is rotationally connected with a worm II (30), the worm II (30) is rotationally arranged at the lower end of the working cavity II (22), the bottom end of the groove (50) is fixedly provided with a clamping groove (49), the electromagnetic block (43) is fixedly arranged at the bottom end of the groove (42), the electromagnetic block (43) is correspondingly connected with the magnetic block (45) and the magnetic block (45) is correspondingly arranged between the telescopic rod (46) and the magnetic block (45) and the magnetic block (46), limiting grooves are symmetrically formed in the front side and the rear side of the telescopic rod (46), the limiting grooves are matched with the limiting blocks, movable grooves are symmetrically formed in the left side and the right side of the telescopic rod (46), clamping blocks (47) are slidably arranged in the movable grooves, springs III are fixedly arranged between the clamping blocks (47) and the movable grooves, and the clamping blocks (47) are matched with the clamping grooves (49); Step 2, twisting the untwisted fiber bundles (100) into twisted fiber bundles (200) through a yarn braiding pipe by adopting a ring twisting machine; step3, winding round fiber bundles by a winding machine (6), and forming a winding layer on the surface of a core mold (7); step 4, loading the twisted fiber yarn tube onto each spindle position of a braiding machine (5) for braiding, and forming a braiding layer on the surface of the winding layer; step5, injecting thermosetting unsaturated resin through a heating mould (4), setting the temperatures of different areas through a mould heating system, and solidifying and forming the product (2); and 6, demolding and pulling out the product (2) through the tractor (1).
  2. 2. The method for applying fiber twisting to a woven winding pultrusion pipeline according to claim 1, wherein the high-strength fiber in the step 1 is a high-performance fiber, the untwisted fiber bundle (100) in the step 2 is a flat single-strand 1200tex fiber bundle, the twisted fiber bundle (200) is a round single-strand 1200tex fiber bundle, the twist is 28 twists/m, and the twisting direction is Z twists.
  3. 3. The application method of the fiber twisting in the weaving winding pultrusion pipeline according to claim 1 is characterized in that a traction machine (1), a heating mould (4), a braiding machine (5), a winding machine (6) and a creel (8) are sequentially arranged according to the traction direction of the traction machine (1), the heating mould (4) is arranged on a mould lifting platform (3), a core mould (7) is connected with a core mould clamping device (9), and the core mould (7) is correspondingly arranged with the heating mould (4), the braiding machine (5) and the winding machine (6).
  4. 4. The application method of the fiber twisting in the weaving winding pultrusion pipeline is characterized in that two adjacent cylinders (821) are connected through a convenient connecting mechanism, the convenient connecting mechanism comprises annular grooves I symmetrically arranged at the front end and the rear end of each cylinder (821), a fixing ring I (83) is fixedly arranged at one end of each cylinder (821), a magnetic ring I (812) is arranged in the annular groove I close to one end of each fixing ring I (83), an opening I (84) penetrating through the fixing ring I (83) is communicated with a through hole, an installation groove (810) is arranged at one end of each cylinder (821) far away from each fixing ring I (83), the installation groove (810) is matched with the corresponding fixing ring I (83) of each adjacent cylinder (821), a magnetic ring II (813) is arranged in the annular groove I close to one end of each installation groove (810), the magnetic ring I (812) and the magnetic ring II (813) are attracted, a fixing ring II (87) is fixedly arranged in each installation groove (810), and the opening II (88) penetrating through the fixing ring II (87) is communicated with the through hole.
  5. 5. The method for applying fiber twisting to a woven winding pultrusion pipeline according to claim 4, wherein a plurality of arc grooves (85) are formed in a circumferential array at one end, far away from the cylinder (821), of the first fixing ring (83), the arc grooves (85) are in sliding connection with the first connecting block (86), the first connecting block (86) is fixedly connected with the second connecting block (818), a plurality of guide grooves (89) are formed in a circumferential array at one end, far away from the through hole, of the second fixing ring (87), the guide grooves (89) are matched with the first connecting block (86) and the second connecting block (818), the guide grooves (89) are correspondingly communicated with the matching grooves (811), sliding blocks (819) are arranged in the matching grooves (811) in a sliding mode, the sliding blocks (819) are fixedly connected with the first springs (820), and the first springs (820) are in contact with the second connecting block (818).
  6. 6. The method for applying fiber twisting to a woven winding pultrusion pipeline according to claim 5, wherein the convenient connecting mechanism further comprises a fixed ring (814), an inner ring of the fixed ring (814) is fixedly connected with one side of the cylinder (821) close to the first magnetic ring (812), a plurality of fixed holes (815) are uniformly distributed in the circumferential direction of the fixed ring (814), the fixed holes (815) are respectively matched with the fixed rods (816), the fixed rods (816) are fixedly connected with the first matching blocks (817), the first matching blocks (817) are slidably arranged on one side of the cylinder (821) close to the second magnetic ring (813), the first matching blocks (817) are slidably connected with the second matching blocks (822), the second matching blocks (822) penetrate through one side end of the cylinder (821) and enter the matching grooves (811), the second matching blocks (822) are fixedly connected with the sliding blocks (819), and the matching grooves (811) are communicated with the left side and the right side of the mounting grooves (810).

Description

Application method of fiber twisting in braiding winding pultrusion pipeline Technical Field The invention relates to the technical field of composite material pultrusion application methods, in particular to an application method of fiber twisting in a woven winding pultrusion pipeline. Background At present, high-performance fibers with different numbers are used for producing composite material woven pultrusion pipeline products through a weaving-winding-pultrusion composite process. The continuous large-scale production can be realized by the production of the braiding-winding-pultrusion process, but because the high-performance fiber bundles with different numbers are composed of thousands of fiber monofilaments with diameters of several micrometers, the larger the number is, the more the number of the fiber monofilaments is, and the inherent characteristics of high modulus, brittleness and poor wear resistance of the high-performance fibers can cause the fuzzing and yarn breakage of the braided and wound yarns. In addition, the fiber hairiness floats in the air to pollute the environment, influence the occupational health of workers and also influence the stable production of equipment. Disclosure of Invention In order to solve the technical problems, the invention discloses an application method of fiber twisting in a woven winding pultrusion pipeline, which comprises the following steps: Step 1, high-strength fibers pass through a creel according to a high-low sequence; Step2, twisting untwisted fiber bundles into twisted fiber bundles by using a ring twisting machine through a yarn weaving tube; step 3, winding round fiber bundles by a winding machine, and forming a winding layer on the surface of the core mold; Step 4, loading the twisted fiber yarn tube onto each spindle position of a braiding machine for braiding, and forming a braiding layer on the surface of the winding layer; step 5, injecting thermosetting unsaturated resin through a heating mould, setting the temperatures of different areas through a mould heating system, and solidifying and forming the product; And 6, demolding and pulling out the product by using a tractor. Preferably, the high strength fibers in step 1 are high performance fibers. Preferably, the untwisted fiber bundles in the step 2 are flat single-strand 1200tex fiber bundles, the twisted fiber bundles are round single-strand 1200tex fiber bundles, the twist is 28 twists/m, and the twist direction is Z twists. Preferably, the traction machine, the heating mould, the braiding machine, the winding machine and the creel are sequentially arranged according to the traction direction of the traction machine, the heating mould is arranged on the mould lifting platform, the core mould is connected with the core mould clamping device, and the core mould is correspondingly arranged with the heating mould, the braiding machine and the winding machine. Preferably, the creel is provided with a plurality of positioning holes in an array, a plurality of bearings are installed in the positioning holes and are rotationally connected with the installation shaft, the installation shaft is connected with the creel, the creel is a sectional type creel, the creel comprises a plurality of cylinders, through holes are formed in the cylinders in a penetrating mode, and the through holes are matched with the installation shaft. Preferably, two adjacent cylinders are connected through a convenient connecting mechanism, the convenient connecting mechanism comprises annular grooves I symmetrically arranged at the front end and the rear end of the cylinder, a first fixing ring is fixedly arranged at one end of the cylinder, a first magnetic ring is arranged in the annular groove I close to one end of the first fixing ring, an opening I which is arranged through the fixing ring is communicated with the through hole, an installation groove is formed in one end, far away from the first fixing ring, of the cylinder, the installation groove is matched with the first fixing ring of the adjacent cylinder, a second magnetic ring is arranged in the annular groove I close to one end of the installation groove, the first magnetic ring and the second magnetic ring are attracted, and the second fixing ring is fixedly arranged in the installation groove. Preferably, the first end circumference array of keeping away from the barrel of retainer plate is equipped with a plurality of arc grooves, arc groove and connecting block one sliding connection, connecting block one and two fixed connection of connecting block, and the second end circumference array of keeping away from the through-hole of retainer plate is equipped with a plurality of guide slots, and the guide slot corresponds the intercommunication with connecting block one, connecting block two, and the guide slot is equipped with the sliding block with the cooperation groove in the slip, sliding block and spring one fixed connection, spring one and connec