A stretch wrapping forming production line and a stretch wrapping forming method

Abstract

A kind of pull-winding forming production line, for manufacturing pull-winding product, including placing yarn's cloth yarn device, winding yarn's winding forming equipment in the order along the forming advancing direction of pull-winding product, the forming device of the yarn solidified into pull-winding product after being immersed in glue solution, provide traction force's traction device, cutting device of cutting pull-winding product;Winding forming equipment includes rack and the setting of the dipping device, core mold fixing device, winding device in the order along the forming advancing direction of pull-winding product, rack includes first rack and second rack, core mold fixing device is set on first rack, winding device is vertically set on second rack, first rack and second rack separate setting;Cutting device includes base, follow-up mechanism, cutting mechanism, follow-up mechanism includes bottom plate and clamping mechanism, clamping mechanism is used to hold and clamp pull-winding product so that follow-up mechanism follows pull-winding product synchronous movement.This application also discloses a kind of pull-winding forming method.

Description

Technical Field

[0001] This application relates to the field of composite material molding equipment technology, and in particular to a filament winding molding production line and a filament winding molding method. Background Technology

[0002] Currently, composite material pultrusion molding equipment typically employs a mechanism with a rotary table mounted on an integral frame. Resin-impregnated fibers are wound onto a mandrel. However, this method suffers from several drawbacks. First, because both the mandrel and the rotary table are fixed to the frame, the stress on the mandrel during molding causes vibrations in the frame, affecting the stability of the yarn guide assembly on the rotary table. This can lead to misalignment of the fiber layer wound on the mandrel surface, reducing product quality. Second, when the mandrel is too long, inserting and removing it from the rotary table requires multiple tools, resulting in cumbersome operation and low efficiency. Furthermore, during the manufacturing of pultruded products, continuously molded products need to be cut to the required length during pultrusion. Currently, manual measurement and cutting are used, which suffers from poor accuracy, requires secondary measurements, and is inefficient. Moreover, because the product is constantly in motion, the cutting machine and the product cannot remain relatively stationary during cutting, leading to defects such as discontinuities and burrs on the cut surface, requiring secondary trimming, resulting in low efficiency and significant waste. Summary of the Invention

[0003] To address the shortcomings of existing technologies, one of the objectives of this application is to provide a filament winding production line that can effectively prevent fiber layer displacement caused by vibration of the winding device due to stress on the mandrel, and avoid problems such as poor measurement accuracy, uneven cutting surface, and low efficiency associated with manual measurement and cutting.

[0004] To solve the above-mentioned technical problems, the technical solution adopted in this application is: a winding molding production line for manufacturing winding products, comprising, in sequence along the forming direction of the winding products, a yarn-laying device for placing yarn, a winding molding device for winding yarn, a molding device for curing yarn impregnated with adhesive into winding products, a traction device for providing traction force, and a cutting device for cutting the winding products; the winding molding device includes a frame and, in sequence along the forming direction of the winding products, an impregnation device, a core mold fixing device, and a winding device, the frame including a first frame and a second frame, the core mold fixing device being disposed on the first frame, and the winding device being vertically disposed on the second frame, the first frame and the second frame being separately disposed; the cutting device includes a base, a following mechanism, and a cutting mechanism, the following mechanism including a base plate and a clamping mechanism, the clamping mechanism being used to clamp the winding products so that the following mechanism moves synchronously with the winding products.

[0005] The winding molding equipment also includes several adhesive recovery tanks and several adhesive recovery boxes. The adhesive recovery tanks are horizontally arranged on the frame along the length of the frame and are all located below the yarn movement path. The bottom of the adhesive recovery tank is provided with a recovery hole, which is connected to the adhesive recovery box.

[0006] The winding molding equipment also includes several height-adjustable support devices, which are arranged below the core mold along the width direction of the frame, and the support devices are distributed parallel to each other along the length direction of the frame.

[0007] The winding device includes a winding motor, a winding disc, a yarn guide assembly, and a winding claw, which are sequentially mounted on the outer periphery of the mandrel along the length of the frame. The winding disc, the yarn guide assembly, and the winding claw are all provided with yarn guide holes and correspond to each other. The yarn passes through the yarn guide holes on the winding disc, the yarn guide assembly, and the winding claw in sequence. The winding motor drives the winding device to rotate, thereby winding the yarn around the outer periphery of the mandrel.

[0008] The winding forming equipment includes two winding devices, which are arranged opposite each other along the length of the frame.

[0009] The winding molding equipment also includes a felt device, which is fixedly mounted on the first frame and located above the core mold fixing device.

[0010] The base plate is equipped with a clamping cylinder, and the clamping mechanism includes two grippers that can move along the width of the base. The clamping cylinder drives the two grippers to clamp and pull the product.

[0011] The cutting mechanism includes a movable frame and a cutting frame. The movable frame is set on the base plate and drives the cutting frame to move in the vertical direction. The cutting frame is equipped with a cutting motor and at least two guide wheels. The at least two guide wheels are tensioned with diamond wire. The cutting motor drives the guide wheels to rotate, thereby driving the diamond wire to rotate, so as to cut the wound product.

[0012] The base is also equipped with a measuring mechanism, which includes a bracket and a sensor mounted on the bracket. The sensor detects the position signal of the wound product and transmits it to the accompanying mechanism to control the accompanying mechanism to clamp and wound the product.

[0013] The second objective of this application is to provide a winding molding method using the aforementioned winding molding production line, comprising the following steps: S101: Several yarns are impregnated with adhesive and then pulled and wound outside the mandrel by a winding molding device to form a preform of a winding product; S102: The preform enters the molding device and is cured at high temperature to form a winding product, and a traction device pulls the winding product along the molding direction of the winding product to continuously form the winding product; S103: The position signal of the winding product is detected and transmitted to the cutting device, so that the cutting device cuts the winding product according to a preset length.

[0014] In step S101, an inner axial layer is formed by pultrusion outside the core mold, and a winding layer is formed by winding outside the inner axial layer.

[0015] The method includes step S10 after step S101: forming an outer axial layer by pultrusion outside the winding layer; and / or step S11 before step S101: forming an inner liner layer by covering the outer periphery of the mandrel with felt; and / or step S12 after step S101: forming an outer felt layer by covering the outer side of the winding layer with felt.

[0016] In step S103, the clamping mechanism clamps the winding product, the following mechanism moves with the winding product, and the cutting mechanism cuts the winding product.

[0017] After the cutting is completed, the following mechanism continues to move along the forming direction of the winding product to drive the clamping mechanism to clamp the cut winding product and move it into place, and the cutting device is reset.

[0018] The beneficial effects of this application are: the winding molding production line of this application realizes the fully automated production of winding products, and the process is simple and the production efficiency is high. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0020] Figure 1 This is a schematic diagram of the structure of the winding forming equipment 100 in one embodiment of this application;

[0021] Figure 2 This is a schematic diagram of the structure of the impregnation device 120 in one embodiment of this application;

[0022] Figure 3 This is a schematic diagram of the core mold fixing device 130 in one embodiment of this application;

[0023] Figure 4 This is a schematic diagram of the winding device 140 in one embodiment of this application;

[0024] Figure 5 yes Figure 4 Enlarged view of point A in the middle;

[0025] Figure 6 This is a schematic diagram of the structure of the support device 150 in one embodiment of this application;

[0026] Figure 7This is a schematic diagram of the structure of the felt device 160 in one embodiment of this application;

[0027] Figure 8 This is a schematic diagram of the structure of the adhesive recovery tank 171 in one embodiment of this application;

[0028] Figure 9 This is a schematic diagram of the cutting device 200 in one embodiment of this application;

[0029] Figure 10 yes Figure 9 Enlarged view of point B in the middle;

[0030] Figure 11 This is a schematic diagram of the cutting mechanism 230 in one embodiment of this application. Detailed Implementation

[0031] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0032] In one embodiment, a winding molding production line is provided for manufacturing winding products. Along the forming direction of the winding products, it sequentially includes a yarn-laying device for placing yarn, a winding molding device 100 for winding yarn, a molding device for curing the impregnated yarn into a winding product, a traction device for providing traction force, and a cutting device 200 for cutting the winding products. That is, each device is arranged sequentially along the forming direction of the winding products so that the winding products undergo various processes in sequence to finally produce a long straight tubular product.

[0033] See Figure 1The winding forming equipment 100 includes: a horizontally arranged frame 110, an impregnation device 120 for impregnating yarn, a mandrel fixing device 130 for fixing the mandrel, and a winding device 140 for winding yarn onto the mandrel. The impregnation device 120, the mandrel fixing device 130, and the winding device 140 are arranged sequentially along the forming direction of the wound product. The frame 110 includes a first frame 111 and a second frame 112. The mandrel fixing device 130 is horizontally arranged on the first frame 111, and the winding device 140 is vertically arranged on the second frame 112. The first frame 111 and the second frame 112 are separated. Specifically, the first frame 111 and the second frame 112 are respectively fixed to the ground by pouring concrete, thereby achieving the separate arrangement of the first frame 111 and the second frame 112. Compared to existing technologies that fix both the mandrel and the rotary table to the overall frame, the stress on the mandrel and rotary table during the molding process causes vibration of the overall frame, which in turn affects the stability of the yarn guiding components on the rotary table, causing the fiber layer wound on the mandrel surface to shift and reducing product quality. By separating the first frame 111 that fixes the mandrel fixing device 130 and the second frame 112 that fixes the winding device 140, the fiber layer shift caused by vibration of the winding device 140 due to the stress on the mandrel can be avoided, effectively improving the product qualification rate.

[0034] See Figure 2The impregnation device 120 includes an impregnation frame 121, a yarn collecting plate 122, two yarn separating plates 123, an impregnation tank 124, and an impregnation frame 125. The yarn collecting plate 122, the impregnation tank 124, and the two yarn separating plates 123 are sequentially arranged on the impregnation frame 121 along the length of the frame 110, and the impregnation frame 125 is arranged on the impregnation tank 124. Specifically, the yarn collecting plate 122 is arranged vertically at the end of the impregnation frame 121 away from the core mold fixing device 130. The yarn collecting plate 122 has several yarn collecting holes for threading the yarn and guiding the yarn into the impregnation tank 124 to facilitate subsequent yarn impregnation. The impregnation tank 124 is a V-shaped groove, that is, the impregnation tank 124 is a downwardly concave V-shape. The impregnation tank 124 is horizontally arranged on the impregnation frame 121 to hold the resin liquid. The dipping frame 125 is horizontally arranged on the dipping tank 124 and is fitted to the inner bottom surface of the dipping tank 124. Specifically, the dipping frame 125 includes several dipping rollers 1251, which are arranged to form a V-shaped structure. That is, the several dipping rollers 1251 are arranged on the dipping frame 125 along the length of the frame 110 at the bottom of the dipping tank 124, and there is a certain gap between the several dipping rollers 1251 and the bottom plate of the dipping tank 124. After the yarn passes through the yarn collecting hole on the yarn collecting plate 122, it is sequentially inserted into the gap between the several dipping rollers 1251 and the bottom plate of the dipping tank 124 to be soaked in the glue. The several dipping rollers 1251 can keep the yarn at the bottom of the dipping tank 124, ensuring the wetting effect of the yarn. Two yarn separating plates 123 are vertically arranged at the end of the impregnation frame 121 near the core mold fixing device 130. The two yarn separating plates 123 are arranged at a certain angle to each other, and the opening direction of the angle is towards the yarn collecting plate 122. The yarn separating plates 123 are provided with several yarn separating holes for yarn to pass through. The two yarn separating plates 123 can divide the yarn that has passed through the impregnation tank 124 into two parts. At the same time, the opening direction of the angle between the two yarn separating plates 123 is towards the yarn collecting plate 122, so that the two parts of yarn after impregnation can pass through the yarn separating plates 123 to the sides away from the center line of the core mold fixing device 130. This allows the two parts of yarn to bypass the core mold fixing device 130, gradually approach the core mold from both sides and cover the outer periphery of the core mold to achieve pre-forming. It should be noted that the included angle between the two yarn separating plates 123 can be 100°, 120°, 150°, etc., as long as the two yarns can smoothly bypass the core mold fixing device 130 and smoothly transition to the next station, avoiding excessive bending of the yarn and causing wear during the movement. Therefore, in other embodiments, the included angle between the two yarn separating plates can be adjusted according to the specific structure of the equipment, and the number of yarn separating plates can also be adjusted to three, four, etc., according to process requirements. No specific limitation is made here.

[0035] The impregnation tank 124 also has a constant temperature heating function. By setting a suitable temperature, the resin solution in the impregnation tank 124 can always maintain a suitable viscosity, which is convenient for the yarn to be impregnated. This avoids the situation where the resin solution viscosity is too high when the temperature is too low, so that the yarn cannot be fully impregnated, thus affecting the product quality.

[0036] See Figure 1 and Figure 3 The core mold fixing device 130 is horizontally mounted on the first frame 111 and is used to adjust and fix the core mold. The core mold fixing device 130 includes an adjusting frame 131 and an adjusting block assembly 132; the adjusting frame 131 includes an upper top plate 1311, a first side plate 1312, a lower top plate 1313, and a second side plate 1314, which are sequentially fixedly connected end-to-end, thus making the adjusting frame 131 a hollow structure with a rectangular cross-section of its inner cavity. Figure 3 In the orientation, the two sides of the adjustment frame 131 without a plate surface are defined as the front side and the rear side of the adjustment frame 131, respectively, and the front and rear sides of the adjustment frame 131 are connected for the core mold to pass through. Two sliding grooves are provided on the upper top plate 1311, the first side plate 1312, the lower top plate 1313, and the second side plate 1314. The sliding grooves are located on the inner side of the front and rear edges of the adjustment frame 131, that is, perpendicular to the edges where the upper top plate 1311, the first side plate 1312, the lower top plate 1313, and the second side plate 1314 connect.

[0037] The upper top plate 1311 is parallel to the lower top plate 1313, and the first side plate 1312 is parallel to the second side plate 1314. An adjusting block group 132 is disposed within the adjusting frame 131. The adjusting block group 132 includes two transverse adjusting blocks 1321 and two longitudinal adjusting blocks 1322. The short sides of the two sides of the transverse adjusting blocks 1321 are respectively located in the grooves of the upper top plate 1311 and the lower top plate 1313, and the short sides of the two sides of the longitudinal adjusting blocks 1322 are respectively located in the grooves of the first side plate 1312 and the second side plate 1314. The adjusting block group 132 slides within the grooves to adjust the position of the core mold, thereby limiting and fixing the position of the core mold. It should be noted that since the two transverse adjusting blocks 1321 and the two longitudinal adjusting blocks 1322 need to slide within the grooves, they must not interfere with each other; that is, any two adjacent grooves must not intersect.

[0038] In this embodiment, following the principle of the upper top plate 1311 being on top and the lower top plate 1313 being on the bottom, the so-called longitudinal adjustment block 1322 is used to adjust the position of the core mold in the vertical direction; the so-called transverse adjustment block 1321 is used to adjust the position of the core mold in the horizontal direction. Specifically, the core mold fixing device 130 includes several adjusting screws, and several screw holes are provided at the position of the adjusting block group 132 projected onto the adjusting frame 131. The adjusting screws pass through the screw holes to drive the two transverse adjustment blocks 1321 and the two longitudinal adjustment blocks 1322 to move, thereby adjusting the position of the core mold in the horizontal and vertical directions. Furthermore, the adjusting screws ensure that the two transverse adjustment blocks 1321 and the two longitudinal adjustment blocks 1322 are in close contact with the core mold, thereby achieving the function of fixing the core mold. Using adjusting screws to drive the displacement of the adjusting block group 132 is simple to operate, highly flexible, and avoids direct contact between the adjusting screws and the core mold, thus preventing damage to the core mold.

[0039] In this embodiment, a set of adjustment block groups 132 is provided on the front side and the rear side of the adjustment frame 131. Each set of adjustment block groups 132 includes two horizontal adjustment blocks 1321 and two vertical adjustment blocks 1322, which can ensure the stability of the core mold adjustment and core mold fixation. In other embodiments, only one set of adjustment block groups can be provided in the adjustment frame, or two, three or more sets of adjustment block groups can be provided. Each set of adjustment block groups can also include more than two horizontal adjustment blocks and more than two vertical adjustment blocks. The specific settings can be made according to the actual adjustment requirements, and no specific limitation is made here.

[0040] See Figure 1 , Figure 4 and Figure 5 The winding device 140 is vertically mounted on the second frame 112 and is used to wind yarn around the outer periphery of the mandrel. The winding device 140 includes a winding motor 141, a winding disc 142, a yarn guide assembly 143, and a winding claw 144, which are sequentially arranged around the outer periphery of the mandrel along the length of the frame 110. The winding disc 142, the yarn guide assembly 143, and the winding claw 144 are all provided with corresponding yarn guide holes. The yarn passes through the yarn guide holes on the winding disc 142, the yarn guide assembly 143, and the winding claw 144 in sequence. The winding motor 141 drives the winding device 140 to rotate, thereby winding the yarn around the outer periphery of the mandrel. The cooperation of the winding disc 142, the yarn guide assembly 143, and the winding claw 144 increases the yarn tension, preventing the yarn from loosening and shifting due to insufficient tension when winding around the outer periphery of the mandrel, thus affecting product quality.

[0041] The winding motor 141 is a servo motor, which can precisely control the rotation speed of the winding device 140, ensuring that the yarn maintains a stable winding tension and speed as it passes through the winding disc 142, the yarn guide assembly 143, and the winding claw 144, winding around the outer periphery of the mandrel. In other embodiments, the winding motor may be other types of motors or other drive devices, and no specific limitations are imposed here.

[0042] Specifically, the winding disc 142 has a disc-shaped structure with a winding through-hole 1421 at its center for threading the mandrel. The winding disc 142 has several yarn bobbins 145 for holding fiber yarn rolls. These yarn bobbins 145 are evenly distributed circumferentially around the winding through-hole 1421 on one side of the winding disc 142, with the axis of each yarn bobbin 145 perpendicular to the disc surface. The winding disc 142 also has several first yarn guide holes 1422, corresponding one-to-one with the centers of the yarn bobbins 145, for threading the yarn from the fiber yarn rolls. The yarn guide assembly 143 is located on the other side of the winding disc 142 and includes two parallel yarn guide plates 1431 sleeved around the outer periphery of the mandrel. The yarn guide plates 1431 are annular plates and have a plurality of second yarn guide holes 14311. The plurality of second yarn guide holes 14311 are evenly distributed around the center of the yarn guide plate 1431. The second yarn guide holes 14311 on the two yarn guide plates 1431 are coaxially arranged in a one-to-one correspondence and correspond one-to-one with a plurality of first yarn guide holes 1422. The winding claw 144 includes a winding frame 1441, a plurality of winding rods 1442, and a plurality of winding elements 1443. The winding frame 1441 has a circular structure and is fitted around the outer periphery of the mandrel. The winding rods 1442 are arranged radially on the outside of the winding frame 1441. The plurality of winding rods 1442 are evenly distributed circumferentially around the center of the winding frame 1441. At least one third yarn guide hole 14421 is provided at the end of the winding rod 1442 away from the winding frame 1441, which is connected to the first yarn guide hole 1422 and the second yarn guide hole 1443. Hole 14311 is correspondingly provided; the winding member 1443 is an L-shaped plate, which is set on the outer side of the winding frame 144 away from the winding disc 142 along the length direction of the frame 110. Several winding members 1443 are evenly distributed around the center of the winding frame 1441. The short side of the winding member 1443 is fixed on the winding frame 1441. At least one fourth yarn guide hole 14431 is provided on the long side of the winding member 1443, which is correspondingly provided with the first yarn guide hole 1422, the second yarn guide hole 14311 and the third yarn guide hole 14421.

[0043] It should be noted that the winding disc 142, the yarn guide assembly 143, and the winding claw 144 are all provided with yarn guide holes that correspond to each other. That is, the first yarn guide hole 1422 on the winding disc 142, the second yarn guide hole 14311 on the yarn guide assembly 143, the third yarn guide hole 14421 on the winding rod 1442, and the fourth yarn guide hole 14431 on the winding member 1443 are all set in a one-to-one correspondence. In other words, the axes of each group of first yarn guide holes 1422, second yarn guide holes 14311, third yarn guide holes 14421, and fourth yarn guide holes 14431 are all located in the same axial plane of the mandrel. The yarn is sequentially threaded through the yarn guide holes on the winding disc 142, the yarn guide assembly 143, and the winding claw 144. That is, each yarn sequentially passes through the corresponding first yarn guide hole 1422, second yarn guide hole 14311, third yarn guide hole 14421, and fourth yarn guide hole 14431. When the winding motor 141 drives the winding device 140 to rotate, the yarn can maintain appropriate tension and be wound around the outer periphery of the mandrel, thus ensuring product quality.

[0044] In this embodiment, the first yarn guide hole 1422, the second yarn guide hole 14311, the third yarn guide hole 14421 and the fourth yarn guide hole 14431 are all ceramic through holes, that is, ceramic eyes are provided on the corresponding components. On the one hand, ceramic eyes have high hardness, strong wear resistance and long service life; on the other hand, ceramic eyes are usually made of precision ceramics and have a smooth surface, which can protect the yarn from damage when passing through them.

[0045] The winding disc 142, yarn guide assembly 143, and winding claw 144 are all provided with corresponding mounting holes. Fasteners are inserted into these mounting holes to achieve a fixed connection between the winding disc 142, yarn guide assembly 143, and winding claw 144, allowing them to rotate synchronously around the mandrel. In this embodiment, the fasteners are mating bolts and screws. In other embodiments, the winding disc, yarn guide assembly, and winding claw can also be connected by other methods such as rod clamping, as long as a reliable connection between the winding disc, yarn guide assembly, and winding claw is ensured.

[0046] Further, several wire guiding members 146 are obliquely provided on one side of the winding disc 142 close to the yarn guiding assembly 143, for guiding the yarn passing out from the first yarn guiding hole 1422 to penetrate into the second yarn guiding hole 14311, avoiding the yarn directly penetrating from the first yarn guiding hole 1422 into the second yarn guiding hole 14311, which may aggravate the wear of the yarn due to excessive bending degree and cause the yarn to break. The several wire guiding members 146 are circumferentially and uniformly distributed inside several first yarn guiding holes 1422 around the winding through hole 1421, and are correspondingly arranged with the first yarn guiding hole 1422 and the second yarn guiding hole 14311. Specifically, the wire guiding member 146 includes a wire guiding frame 1461 and several wire guiding rods 1462. The wire guiding frame 1461 has a "C" - shaped structure, which is formed by connecting two side plates and a bottom plate. The two side plates extend in the same direction away from the bottom plate on both sides where the bottom plate is connected to the two side plates. One end of the wire guiding frame 1461 is fixed on the winding disc 142, and the other end, as a free end, extends towards the direction close to the second yarn guiding hole 14311; the wire guiding rod 1462 is a cylindrical rod, and four wire guiding rods 1462 are arranged at intervals between the two side plates of the wire guiding frame 1461 and are perpendicular to the side plates. After the yarn passes out from the first yarn guiding hole 1422, it penetrates into the gap between the four wire guiding rods 1462 and the bottom plate of the wire guiding frame 1461 from the fixed end of the wire guiding member 146, or it can also penetrate successively and alternately through several wire guiding rods 1462 from the fixed end of the wire guiding member 146, and then penetrates out from the free end of the wire guiding member 146 and into the second yarn guiding hole 14311, thus realizing the smooth penetration of the yarn.

[0047] The winding device 140 further includes a winding dipping tank 147 for containing resin glue. The winding dipping tank 147 is located below the winding claws 144, and the lower half of the winding claws 144 is located in the winding dipping tank 147. Specifically, the winding dipping tank 147 has an arc - shaped groove structure, which matches the shape of the winding claws 144, enabling the winding claws 144 to rotate smoothly in the winding dipping tank 147. That is, the bottom plate of the winding dipping tank 147 is an arc - shaped plate, and its radian matches the arc shape formed by the free ends of several winding rods 1442 on the winding claws 144. Setting the winding dipping tank 147 to match the shape of the winding claws 144 can fully infiltrate the yarn on the winding claws 144 with a small amount of resin glue, improve the utilization rate of the resin glue, and avoid waste. A solenoid valve 1471 is provided at the bottom of the winding dipping tank 147 for regularly replacing the resin glue in the winding dipping tank 1471 to avoid the decline in product quality caused by the aging of the resin glue. When it is necessary to replace the resin glue, open the solenoid valve 1471. After the resin glue in the winding dipping tank 147 is released completely, close the solenoid valve 1471, and then pour in new resin glue. The operation is simple and the efficiency is high.

[0048] The winding impregnation tank 147 also has a constant temperature heating function. By setting a suitable temperature, the resin solution in the winding impregnation tank 147 can always maintain a suitable viscosity, which is convenient for yarn impregnation. This avoids the situation where the resin solution viscosity is too high when the temperature is too low, so that the yarn cannot be fully impregnated, thus affecting the product quality.

[0049] The yarn threading path on the winding device 140 is as follows: the yarn from the yarn rolls in several yarn bobbins 145 is passed out through the corresponding first yarn guide hole 1422, then passes through the gap between the four yarn guide rods 1462 and the bottom plate of the yarn guide frame 1461 from the fixed end of the corresponding yarn guide 146, and then passes out from the free end of the yarn guide 146. It then passes through the corresponding second yarn guide hole 14311 on the yarn guide plate 1431 near the winding disc 142, the corresponding second yarn guide hole 14311 on the yarn guide plate 1431 away from the winding disc 142, the third yarn guide hole 14421 on the corresponding winding rod 1442, and the fourth yarn guide hole 14431 on the corresponding winding member 1443. When the winding device 140 is running, the winding motor 141 drives the winding device 140 to rotate, causing the yarn threaded on the winding device 140 to move continuously, passing through the first yarn guide hole 1422, the thread guide 146, the second yarn guide hole 14311, and the third yarn guide hole 14421 in sequence. Then, it is immersed in resin in the winding impregnation tank 147, and then passes through the fourth yarn guide hole 14431, and finally winds around the outer periphery of the mandrel.

[0050] The winding disc 142, the yarn guide assembly 143, and the winding claw 144 work together to increase the yarn tension. That is, after the yarn passes through the first yarn guide hole 1422, the second yarn guide hole 14311, the third yarn guide hole 14421, and the fourth yarn guide hole 14431 in sequence, it can maintain a suitable winding tension, so as to avoid the yarn from loosening and shifting due to insufficient tension when it is wound around the outer periphery of the mandrel, which would affect the product quality.

[0051] In this embodiment, sixteen yarn bobbins 145 are provided on the winding reel 142. Eight yarn bobbins 145 are evenly distributed circumferentially around the winding through hole 1421 on the inner side of the winding reel 142, and the other eight yarn bobbins 145 are evenly distributed circumferentially on the outer side of the winding reel 142. The inner and outer yarn bobbins 145 on the winding reel 142 are staggered, that is, the line connecting the center of the sixteen yarn bobbins 145 and the center of the winding reel 142 can divide the winding reel 142 into sixteen equal parts. Correspondingly, the winding disc 142 is provided with sixteen first yarn guide holes 1422 and sixteen yarn guide pieces 146, each yarn guide plate 1431 is provided with sixteen second yarn guide holes 14311, and the winding claw 144 is provided with sixteen winding rods 1442 and sixteen winding pieces 1443. Each winding rod 1442 is provided with three third yarn guide holes 14421 sequentially along its length, and each winding piece 1443 is provided with two fourth yarn guide holes 14431 sequentially along its length. The sixteen sets of first yarn guide holes 1422, second yarn guide holes 14311, third yarn guide holes 14421 and fourth yarn guide holes 14431 are arranged correspondingly. In other embodiments, the number of yarn bobbins can also be ten, twenty, etc., and the number of the first yarn guide hole, the second yarn guide hole, the third yarn guide hole, and the fourth yarn guide hole can also be ten, twenty, or increased or decreased proportionally. It can be designed according to process requirements. As long as the yarn bobbins, the first yarn guide hole, the second yarn guide hole, the third yarn guide hole, and the fourth yarn guide hole are set in a corresponding manner, and the yarn is threaded through them to ensure appropriate winding tension, no specific restrictions are imposed here.

[0052] In this embodiment, each group of yarn guide holes includes one first yarn guide hole 1422, two second yarn guide holes 14311, three third yarn guide holes 14421, and two fourth yarn guide holes 14431. It should be noted that each yarn strand passes sequentially through the first yarn guide hole 1422, the yarn guide component 146, the two second yarn guide holes 14311, any one or more third yarn guide holes 14421, and any one or more fourth yarn guide holes 14431 in each group of yarn guide holes before winding around the outer periphery of the mandrel, ensuring that the winding tension of all yarns remains consistent and is evenly wound around the outer periphery of the mandrel. In other embodiments, other combinations of yarn guide holes can also be used, such as providing only one second yarn guide hole, one third yarn guide hole, and one fourth yarn guide hole, or omitting the second yarn guide hole, or providing more types of yarn guide holes. Adjustments can be made according to specific needs, as long as the yarn strands maintain a suitable winding tension after sequentially passing through the yarn guide holes; no specific limitations are imposed here.

[0053] In this embodiment, the winding forming equipment 100 includes two winding devices 140, which are arranged opposite to each other along the length of the frame. Two winding motors 141 drive the two winding devices 140 to rotate in opposite directions, thereby achieving bidirectional winding of the yarn. By using two winding devices 140 for bidirectional winding, two layers of circumferential structures with the same winding angle and opposite directions can be formed around the mandrel, improving the circumferential strength of the product. Alternatively, the two winding motors 141 can drive the two winding devices 140 to wind in the same direction, sequentially winding around the mandrel to form two layers of circumferential structures with the same winding angle and direction; adjustments can be made according to the specific product design. It should be noted that when the yarn winding angle is less than 85°, the design of the yarn winding angle has a significant impact on the mechanical properties of the product. Usually, two winding devices 140 are required for bidirectional winding to ensure that the yarn layup structure of the product is symmetrical and the stress is reasonable. When the yarn winding angle is greater than or equal to 85°, the design of the yarn winding angle has a smaller impact on the mechanical properties of the product. It can be approximated that the yarn winding angle is 90°. At this time, whether two winding devices 140 are used for bidirectional winding or unidirectional winding, the final circumferential structure of the product can be considered to be approximately the same. Since the winding claws 144 and yarn bobbins 145 are located on opposite sides of the winding reel 142 on the same winding device 140, and the two winding devices 140 are arranged back-to-back, that is, the yarn bobbins 145 on the two winding reels 142 are arranged opposite each other, and the winding claws 144 of the two winding devices 140 are arranged back-to-back, on the one hand, the opposite arrangement of the yarn bobbins 145 on the two winding reels 142 allows the operator to change the yarn rolls on the two winding reels 142 from a position between the two winding reels 142, resulting in high work efficiency; on the other hand, when the winding angle of the yarn is greater than or equal to 85°, the two winding devices The winding claws 144 on the 140 are arranged in opposite directions, providing sufficient space for the two winding devices 140 to wind the yarn around the outer periphery of the mandrel sequentially. This allows the two winding devices 140 to alternately perform yarn changing operations without stopping the machine when winding in both directions or in the same direction. That is, when one winding device 140 stops to change yarn, the winding speed of the other winding device 140 is doubled, so that the product can continue production with the same wall thickness. After one winding device 140 finishes changing yarn, the above operation is repeated for the other winding device to change yarn, thereby achieving uninterrupted production and improving production efficiency. In other embodiments, one or three winding devices can also be set, depending on the product structure requirements, and no specific limitation is made here.

[0054] See Figure 1 and Figure 6The winding molding equipment 100 also includes several height-adjustable support devices 150. The support devices 150 are arranged below the mandrel along the width direction of the frame 110, and the several support devices 150 are distributed parallel to each other along the length direction of the frame 110. The multiple height-adjustable support devices 150 below the mandrel can support the mandrel during installation and removal, and assist the mandrel in smoothly entering and exiting the winding device 140, making operation simple and work efficiency high.

[0055] The support device 150 is a screw auger jack, including a transmission frame 151, a movable frame 152, a support rod 153, two support auxiliary components 154, and a handwheel 155. Specifically, the transmission frame 151 is fixed to the frame 110 along its width; the movable frame 152 is connected to the transmission frame 151 via a screw, allowing the movable frame 152 to move along the screw axis, i.e., vertically; the support rod 153 is a rod with a circular cross-section, fixedly mounted on the movable frame 152 along the width of the frame 110, and is used to support the core mold; the two support auxiliary components 154 have a frustum structure, are movably connected to the support rod 153 and coaxially arranged with the support rod 153, and are used to assist in supporting the core mold. The smaller bottom surfaces of the two support auxiliary components 154 are arranged opposite each other, so that the two support... The auxiliary components 154 are arranged with V-shaped openings facing each other. Since the core mold is usually a cylindrical structure, the V-shaped openings allow the core mold to be held in place by the two support auxiliary components 154 when it is placed on the support rod 153, making it less likely to roll and slip off. The handwheel 155 is connected to the transmission frame 151 through a connecting rod. By rotating the handwheel 155, the gear in the transmission frame 151 can be rotated, which in turn drives the lead screw to rise or fall, thereby controlling the moving frame 152 to move up and down in the vertical direction. In other embodiments, a servo motor can also be set to control the movement of the moving frame in the vertical direction to achieve automated operation and precise control of the movement distance.

[0056] Since the support auxiliary component 154 is in direct contact with the core mold, to avoid damage to the core mold surface due to friction when pushing the core mold, the support auxiliary component 154 is made of nylon. Nylon has high mechanical strength, good toughness, a smooth surface, and a low coefficient of friction, and will not damage the core mold surface. In other embodiments, the support auxiliary component can be made of other materials, as long as its surface is smooth and will not damage the core mold.

[0057] In this embodiment, there are four support devices 150, distributed parallel to each other along the length of the frame 110. Two support devices 150 are located between the core mold fixing device 130 and the winding device 140 near the core mold fixing device 130, one support device 150 is located on the side of the other winding device 140 away from the core mold fixing device 130, and one support device 150 is located between the two winding devices 140. In other embodiments, the number and installation position of the support devices can be designed according to the length requirements of the equipment, and are not specifically limited here.

[0058] When installing the mandrel, adjust the height of several support devices 150 to be above the lowest point of the winding through hole 1421, that is, adjust the height of the support rod 153 to be slightly higher than the lowest point of the winding through hole 1421, so that the mandrel can pass smoothly through the winding through hole 1421. At this time, use a crane to lift one end of the mandrel to the support device 150 furthest from the mandrel fixing device 130, and slowly push the mandrel through the winding device 140 farthest from the mandrel fixing device 130, the support device 150, the winding device 140 close to the mandrel fixing device 130, the two support devices 150, and the mandrel fixing device 130 in sequence, and then fix it on the mandrel fixing device 130. After the mandrel is fixed, adjust the height of several support devices 150 to be below the lowest point of the mandrel, that is, adjust the height of the support rod 153 to be lower than the lowest point of the mandrel, so that the support devices 150 will not affect the production of the product. The operation of disassembling the mandrel is the same and will not be described again. Several support devices 150 are set below the core mold, so that the core mold can be erected on the support devices 150 during installation and disassembly. Compared with the traditional direct hoisting of the core mold, the operation is simple and the work efficiency is high when the core mold is inserted into and removed from the winding device.

[0059] Continue reading Figure 1 and Figure 7The winding molding equipment 100 also includes a felt device 160, which is fixedly mounted on the first frame 111 and located above the core mold fixing device 130. Specifically, the felting device 160 includes several felt hanging frames 161, a tensioner 162, a felt roll impregnation tank 163, several felt guide rods 164, and a felt guide (not shown). The several felt hanging frames 161 are fixed to the first frame 111 along the width direction of the frame 110 and are used to hold the felt rolls. The tensioner 162 is connected to one end of the felt hanging frame 161 and is used to increase the tension of the felt. The felt roll impregnation tank 163 is fixed to the first frame 111 along the width direction of the frame 110 and is located below the felt hanging frames 161. It is used to contain resin liquid to impregnate the felt. Two scraper blades 1631 are provided on the felt roll impregnation tank 163 along the width direction of the frame 110. There is a certain gap between the two scraper blades 1631. When the felt is impregnated with resin liquid, it passes through the gap between the two scraper blades 1631. Excess resin is scraped back from the felt fabric into the felt roll impregnation tank 163 to avoid waste. The rest of the structure of the felt roll impregnation tank 163 is similar to that of the winding impregnation tank 147 and will not be described again. Three felt guide rods 164 are fixed on the first frame 111 along the width direction of the frame 110 and are distributed in parallel. One of the felt guide rods 164 is located in the felt roll impregnation tank 163 and has a certain gap between it and the bottom plate of the felt roll impregnation tank 163. The felt fabric is inserted into this gap and impregnated with resin, so that the felt fabric is always at the bottom of the felt roll impregnation tank 163 to ensure the impregnation effect of the felt fabric. The other two felt guide rods 164 are located above and below the aforementioned felt guide rod 164, respectively, to increase the tension of the felt fabric. The felt guide is fixed on the frame 110 and located above the core mold to make the felt fabric cover the outer periphery of the core mold in a cylindrical shape.

[0060] When the felting device 160 is running, the felt cloth on the hanging frame 161 is lowered and first passes through the gap between the felt roll impregnation tank 163 and the felt guide rod 164 above it. Then, it passes sequentially through the gap between the two scraper plates 1631, the felt guide rod 164 above the aforementioned felt guide rod 164, and the felt guide rod 164 below the aforementioned felt guide rod 164. Finally, it is formed into a cylindrical shape by the felt guide and covers the outer periphery of the core mold. In this embodiment, there are three hanging frames 161 and three felt guide rods 164. In other embodiments, the number and placement of the hanging frames and felt guide rods can be designed according to process requirements and are not specifically limited here.

[0061] See Figure 1 and Figure 8The winding molding equipment 100 also includes an adhesive recovery device 170. The adhesive recovery device 170 includes several adhesive recovery tanks 171 and several adhesive recovery boxes. The adhesive recovery tanks 171 are horizontally arranged on the frame 110 along its length and are all located below the yarn movement path. The bottom of the adhesive recovery tanks 171 is provided with recovery holes 1711, which are connected to the adhesive recovery boxes. Since excess resin will drip from the yarn after it is impregnated with resin during the movement process, the multiple adhesive recovery tanks 171 and adhesive recovery boxes allow for the individual recovery of resin dripping from various parts during the preforming process. This results in high recovery efficiency and effectively avoids the aging and failure of the resin due to excessively long return paths and prolonged exposure to air, thus improving the recycling rate of the resin.

[0062] The adhesive recovery tank 171 has a four-sided pyramidal structure, formed by welding four triangular stainless steel plates together. A recovery hole 1711 is located at the bottom of the interconnected sections of the four stainless steel plates. When resin drips onto the adhesive recovery tank 171, the pyramidal structure allows the resin to flow along the side wall of the tank into the recovery hole 1711, and then through a pipe into the adhesive recovery box, achieving rapid resin recovery. In other embodiments, the adhesive recovery tank can also be conical, triangular pyramidal, or other structures, and can be made of steel plates or other materials, or manufactured using a one-piece molding method, as long as it can quickly recover the resin; no specific limitations are imposed here.

[0063] Along the yarn's movement path, due to the long span between some structures of the winding molding equipment 100, it is inconvenient to install a resin recovery tank 171. Therefore, several resin return plates 172 are installed. One portion of the resin return plates 172 is connected at one end to the impregnation device 120 and at the other end to the resin recovery tank 171. When resin drips onto this portion of the resin return plates 172, the resin quickly flows back into the impregnation device 120 along the resin return plates 172. The other portion of the resin return plates 172 is connected at both ends to two resin recovery tanks 171 respectively. When resin drips onto this portion of the resin return plates 172, the resin quickly flows along the resin return plates 172 into the resin recovery tanks 171, and then into the resin recovery box. The several resin return plates 172 and the resin recovery tanks 171 work together to achieve rapid recovery of resin throughout the entire yarn movement path.

[0064] In this embodiment, there are four glue recovery tanks 171, four glue recovery bins, and six glue return plates 172. In other embodiments, the specific number of glue recovery tanks, glue recovery bins, and glue return plates is not limited, as long as the resin glue can be recovered quickly.

[0065] Once the resin in the resin recovery tank reaches a certain volume, it can be pumped back into the impregnation tank 124 of the impregnation device 120 by a resin pump to impregnate the yarn, thus realizing the recycling and reuse of the resin. The reason for pumping the recovered resin back into the impregnation tank 124 of the impregnation device 120 instead of the winding impregnation tank 147 of the winding device 140 is that when the winding device 140 is running, the winding claw 143 will continuously rotate around the mandrel in a vertical plane, thereby driving the yarn to rotate. This allows the yarn in the lower half of the winding claw 143 to be fully impregnated in the winding impregnation tank 147 and then rotate upwards, thereby winding onto the mandrel. During this process, since the yarn on the winding claw 143 is always moving in a vertical plane, when the yarn continues to rotate upwards after being impregnated with resin, the excess resin on the yarn will drip into the winding impregnation tank 147. Therefore, the resin in the winding impregnation tank 147 is consumed at a slower rate. If the recovered resin is pumped back into the winding impregnation tank 147, it will result in too much resin in the winding impregnation tank 147, which will hinder the movement of the yarn and may lead to problems such as fiber breakage.

[0066] The winding forming device 100 also includes several threading plates for combing the yarn. These threading plates are vertically arranged and parallel to each other along the length of the frame 110. Each threading plate has a through hole in its center for fitting a mandrel, and the diameter of the through hole is larger than the diameter of the mandrel. When the threading plate is fitted around the mandrel, the yarn can be evenly threaded through the gap between the threading plate and the mandrel, ensuring that the yarn is evenly distributed circumferentially around the mandrel. This maximizes the prevention of yarn knotting during the winding process and ensures uniform wall thickness of the hollow insulating tube formed by winding.

[0067] See Figure 9 The cutting device 200 includes a base 210, a following mechanism 220 disposed on the base 210 and movable along the length direction of the base 210, a cutting mechanism 230 mounted on the following mechanism 220 for cutting the wrapped product, and a plurality of support mechanisms 240 spaced apart on the base 210 along the length direction of the base 210. The following mechanism 220 includes a base plate 221 and a clamping mechanism 222 disposed on the base plate 221. The clamping mechanism 222 is used to clamp the product so that the following mechanism 220 moves synchronously with the product.

[0068] During the production process, the wound product is moved along the length direction of the base 210. The cutting device 200 is equipped with a following mechanism 220 that can move along the length direction of the base 210 and along the axial direction of the wound product. The cutting mechanism 230 is mounted on the following mechanism 220. The following mechanism 220 moves synchronously with the wound product along the length direction of the base 210, so the cutting mechanism 230 can also move synchronously with the wound product. This keeps the cutting mechanism 230 and the wound product relatively stationary during cutting, improving the quality of the cut surface and the work efficiency, and reducing material waste.

[0069] For ease of explanation, in the horizontal plane where the base 210 is placed, the length direction of the base 210 is defined as the X-axis, and the direction perpendicular to the X-axis in the same horizontal plane is defined as the Y-axis, which is the width direction of the base 210. Furthermore, in this application, the axial direction of the wound article, the length direction and the X-axis direction of the base 210, and the forming direction of the wound article are all in the same direction.

[0070] Specifically, in combination Figure 9 and Figure 10 A slide rail is provided on the base 210 along the X-axis direction, and a slider is provided on the base plate 221. The slider on the base plate 221 matches the slide rail on the base 210, so that the base plate 221 can move along the X-axis direction on the base 210.

[0071] The clamping mechanism 222 includes two grippers 2221 and two gripper support frames 2222. The two gripper support frames 2222 are arranged facing each other on the base plate 221 along the Y-axis. The two grippers 2221 are located on opposite sides of the two gripper support frames 2222, so that the two grippers 2221 are also arranged facing each other along the Y-axis. Thus, when the two gripper support frames 2222 move back and forth along the Y-axis, the two grippers 2221 play the role of clamping and releasing the wound product. This ensures that the clamping mechanism 222 applies the same force to both sides of the wound product when clamping it, thus preventing the wound product from shifting.

[0072] The gripper 2221 is detachably fixed to the gripper support frame 2222, specifically through fastener connection or snap-fit. Different gripper specifications can be replaced according to different specifications of the wound products (mainly the outer diameter of the wound product), improving the equipment's applicability. The gripper 2221 is V-shaped, adaptable to wound products with different sizes within a certain range. When the size of the wound product changes slightly, it can still be used without replacing the gripper 2221, improving work efficiency. Meanwhile, a flexible material is added to the contact surface between the gripper 2221 and the wound product. Because the flexible material can bend elastically, the contact surface between the gripper 2221 and the wound product is increased, thereby increasing the friction between them. This ensures that the traction force for moving the wound product is sufficient to move the accompanying mechanism 220, allowing it to move synchronously with the wound product without applying additional tension. Furthermore, it avoids stress concentration in the clamping mechanism 222 during gripping, which could lead to deformation and damage to the wound product. The flexible material can be polyurethane or rubber, etc., and is not limited thereto.

[0073] A slide rail is provided on the base plate 221 along the Y-axis, and a slider is provided on the gripper support frame 2222. The slider on the gripper support frame 2222 matches the slide rail on the base plate 221, allowing the gripper support frame 2222 to move back and forth on the base plate 221 along the Y-axis. A clamping cylinder is provided on the base plate 221. The clamping cylinder drives the two gripper support frames 2222 to move relative to each other, causing the two grippers 2221 to clamp and pull the product. The clamping cylinder also drives the two gripper support frames 2222 to move away from each other, causing the two grippers 2221 to release the product. Specifically, a gear is installed on the base plate 221 between the two gripper support frames 2222. Two racks are meshed on both sides of the gear, and the two racks are parallel to each other and fixedly connected to the two gripper support frames 2222 by fasteners. The clamping cylinder drives the gear to rotate, which in turn moves the two racks, thereby moving the two gripper support frames 2222. This allows one clamping cylinder to drive two gripper support frames 2222 simultaneously, avoiding the uneven clamping force caused by the asynchronous starting of two motors, which would otherwise lead to the deviation of the wound product. Alternatively, a synchronous belt, sprocket chain, or other structures that provide linkage can be used to achieve synchronous movement of the two gripper support frames. Simultaneous driving of the two gripper support frames can also be achieved by using a motor, which will not be elaborated further here.

[0074] In this embodiment, two clamping mechanisms 222 are provided on the base plate 221. The two clamping mechanisms 222 are spaced apart in the X-axis direction and are located on both sides of the cutting mechanism 230. That is, one clamping mechanism 222, the cutting mechanism 230, and the other clamping mechanism 222 are sequentially arranged on the base plate 221 along the X-axis direction. The wound product passes through one clamping mechanism 222, the cutting mechanism 230, and the other clamping mechanism 222 in sequence. The clamping mechanism 222 is provided on both sides of the cutting mechanism 230 to clamp the wound product simultaneously, which makes the wound product more stable during cutting and avoids problems such as burrs and breaks on the cut surface caused by the wound product shaking during cutting. In addition, the two clamping mechanisms 222 increase the contact area between the following mechanism 220 and the wound product, thereby increasing the friction and allowing the following mechanism 220 to follow the movement of the wound product more stably, avoiding the failure of the following mechanism 220 due to insufficient clamping force. Furthermore, a clamping mechanism 222, which is inserted behind the winding product along the forming forward direction, can clamp the cut winding product after it is cut. As the subsequent following mechanism 220 continues to move along the forming forward direction of the winding product, it can drive the cut winding product to move, thereby avoiding damage to the cut winding product caused by the cutting mechanism 230 when the cut winding product is not removed immediately after cutting.

[0075] Combination Figure 9 and Figure 11The cutting mechanism 230 includes a movable frame 231 and a cutting frame 232. The movable frame 231 is vertically mounted on the base plate 221, and the cutting frame 232 is mounted on the movable frame 231. The movable frame 231 drives the cutting frame 232 to move vertically. The cutting frame 232 is equipped with a cutting motor 2321 and at least two guide wheels 2322. Diamond wire 2323 is tensioned around the outer periphery of the at least two guide wheels 2322. The cutting motor 2321 drives the guide wheels 2322 to rotate, thereby causing the diamond wire 2323 to rotate. The movable frame 231 is a frame structure that spans across the base 210, and the wound product can be moved through the movable frame 231. In this embodiment, the vertical direction refers to the direction perpendicular to the horizontal plane containing the X-axis and Y-axis, so that the cut end face of the wound product is perpendicular to its axial direction, the end face is flat and does not require further processing, avoiding waste.

[0076] In this embodiment, the cutting frame 232 is a rectangular plate. Four guide wheels 2322 are arranged on the plate surface of the cutting frame 232 away from the moving frame 231, distributed at the four corners of the cutting frame 232. The straight line containing the axis of the two guide wheels 2322 away from the base plate 221 is parallel to the straight line containing the axis of the two guide wheels 2322 closer to the base plate 221 and parallel to the plane on which the base plate 221 is located, i.e., parallel to the horizontal plane. At this time, the portion of the diamond wire 2323 used for cutting the wound product is located on the horizontal plane, that is, the line connecting the axes of the four guide wheels 2322 forms a parallelogram or trapezoid. The cutting frame 232 is also provided with a cavity to accommodate the wound product. That is, when the cutting frame 232 moves downward on the moving frame 231 to cut, the wound product after the cutting position can be accommodated in the cavity without interfering with the cutting operation. Setting the portion of the diamond wire 2323 used for cutting the wound product to be located on the horizontal plane can achieve horizontal cutting, which is beneficial for stable cutting. In other embodiments, the diamond wire can also be set not to be located on the horizontal plane, as long as stable cutting can be achieved. Using 2323 diamond wire instead of traditional cutting discs results in less noise and dust, easier installation and replacement, faster cutting speed, and lower cost. Furthermore, due to the high hardness and strong wear resistance of diamond, 2323 diamond wire has a longer service life. In addition, 2323 diamond wire cutting causes less damage to the cutting surface than traditional cutting discs, which helps reduce material waste.

[0077] Since the moving frame 231 can drive the cutting frame 232 to move in the vertical direction, in other embodiments, only two guide wheels may be provided. In this case, the two guide wheels are distributed on both sides of the cutting frame, and the straight line where the axis of the two guide wheels is located is parallel to the horizontal plane; or three guide wheels may be provided in a triangular distribution, or other forms, as long as the guide wheels can drive the diamond wire to rotate and stably cut the wound product.

[0078] In one embodiment, at least one guide wheel 2322 is fixed to the cutting frame 232 by a guide wheel cylinder. The guide wheel cylinder can drive the guide wheel 2322 to move to tension or loosen the diamond wire 2323, facilitating the installation and replacement of the diamond wire 2323. Specifically, one guide wheel 2322 is slidably mounted on the cutting frame 232. The guide wheel cylinder is fixedly mounted on the cutting frame 232, and the piston rod of the guide wheel cylinder is fixedly connected to the guide wheel 2322. The guide wheel cylinder drives the guide wheel 2322 to move on the cutting frame 232 to tension or loosen the diamond wire 2323 via the piston rod. The direction of movement of the guide wheel 2322 is not limited, as long as it can move on the cutting frame 232 to control the tension or loosening of the diamond wire 2323. A slider is provided on the side of the guide wheel 2322 connected to the cutting frame 232. A slide rail / groove is provided on the cutting frame 232 to cooperate with the slider so that the guide wheel 2322 can slide on the cutting frame 232. The piston rod of the guide wheel cylinder can extend and retract to drive the guide wheel 2322 to move on the cutting frame 232, thereby controlling the tension or loosening of the diamond wire 2323. When the tension of the diamond wire 2323 is appropriate and suitable for cutting, the tension of the diamond wire 2323 can be maintained by controlling the piston rod of the guide wheel cylinder to remain in the corresponding position and not extend or retract. The air inlet valve of the guide wheel cylinder uses analog signal control through programming technology to control the cylinder pressure, so as to provide a suitable tension force for the diamond wire 2323, providing a suitable tension adjustment range for diamond wire 2323 of different diameters or for wound products of different thicknesses.

[0079] A slider is provided on one side of the guide wheel 2322 on the cutting frame 232. A corresponding slide rail is provided on the moving frame 231 along the vertical direction and is matched with the slider on the cutting frame 232, so that the cutting frame 232 can move vertically on the moving frame 231. A moving motor 2311 and a lead screw 2312 arranged vertically are provided on the moving frame 231. The lead screw 2312 is fixedly connected to the cutting frame 232 by a lead screw nut (not shown in the figure). The moving motor 2311 drives the lead screw 2312 to rotate, which drives the lead screw nut to move vertically on the lead screw 2312, thereby enabling the cutting frame 232 to move vertically on the moving frame 231.

[0080] In this embodiment, the cutting motor 2321 is a high-speed motor. The high-speed motor can use frequency and pulse changes to ensure the rotational speed of the guide wheel 2322 meets the linear speed range required for cutting. Furthermore, the high-speed motor is small in size, has high transmission efficiency, low noise, and fast dynamic response. In other embodiments, the type of cutting motor is not limited, as long as it can drive the guide wheel to rotate. In this embodiment, the moving motor 2311 is a servo motor. Adjusting the servo motor speed via pulses can adjust the moving rate of the cutting frame 232 to meet the feed speed requirements for cutting. In other embodiments, the type of moving motor is not limited, as long as it can drive the cutting frame to move vertically on the moving frame.

[0081] A cylinder (not shown in the figure) is also installed on the base plate 221, which can drive the base plate 221 to move along the X-axis on the base 210. When cutting the wound product, the following mechanism 220 moves with the wound product. After the cutting is completed, the following mechanism 220 needs to return to its original position to wait for the next cutting. The cylinder can make the following mechanism 220 return to its original position. In this way, the following mechanism 220 can reciprocate within the cutting stroke range to realize continuous cutting of the wound product. In addition, the cylinder can also drive the following mechanism 220 to continue moving along the forming direction of the wound product after the previous section of the wound product is cut. Since the latter section of the coiled product that has not reached the cutting length is still in a constant speed motion during production, in order to avoid wasting materials and consuming the lifespan of the diamond wire 2323 by cutting the latter section of the coiled product again during the process of the cutting frame 232 returning to the initial position, it is necessary to increase the distance between the diamond wire 2323 and the latter section of the coiled product that has not reached the cutting length after the previous section of the coiled product is cut, so as to provide space for the cutting frame 232 to return to the initial position. Therefore, after the cutting is completed, the following mechanism 220 needs to continue to move along the forming direction of the coiled product. The clamping mechanism 222, which is away from the measuring mechanism 270, needs to release the coiled product and not follow the following mechanism 220 to continue moving. At this time, since the previously cut coiled product is not subject to traction, the clamping mechanism 222, which is close to the measuring mechanism 270, cannot drive the following mechanism 220 to continue moving along the moving direction of the coiled product. Therefore, it is necessary to set up a cylinder to drive the following mechanism 220 to continue moving.

[0082] Combination Figure 9 and Figure 10 The cutting device 200 also includes a bellows cover 260, with its two ends connected to the following mechanism 220 and the support mechanism 240, respectively. The bellows cover 260 prevents dust generated during cutting from falling into the base 210, avoiding damage to the motor and other equipment, and extending the service life of these devices. Furthermore, the bellows cover 260 has a pleated design, allowing it to contract and stretch. It will not be damaged during the reciprocating motion of the following mechanism 220, and it effectively blocks dust regardless of the location of the following mechanism 220. Of course, the bellows cover 260 needs to be manually cleaned after a period of use before it can continue to collect dust. Damaged bellows covers 260 can be directly replaced, which will not be elaborated further.

[0083] Several support mechanisms 240 are provided and distributed at intervals along the X-axis on the base 210. Rollers are provided on the support mechanisms 240 to support the product to be cut and wrapped, and the product is not easily damaged. The axial direction of the rollers is parallel to the Y-axis.

[0084] In one embodiment, the base 210 is further provided with an adjustable support mechanism 250, which is located adjacent to the following mechanism 220. The adjustable support mechanism 250 can adjust the support position of the wound product in the vertical direction. Unlike the support mechanism 240, the adjustable support mechanism 250 can adjust its support position according to the size of the wound product to avoid sagging caused by gravity, which would lead to tilting of the cut surface. To avoid sagging caused by gravity, which would lead to tilting of the cut surface, the wound product needs to be kept horizontal near its cut surface. Therefore, the adjustable support mechanism 250 supports the part of the wound product near the cut surface, which requires high precision. The support mechanism 240 mainly supports the part of the wound product away from the cut surface, which does not require high precision; it only needs to provide support. The combination of the adjustable support mechanism 250 and the support mechanism 240 can save costs while ensuring accuracy.

[0085] like Figure 10 As shown, the adjustable support mechanism 250 includes two support frames 251 and one roller 252. The two support frames 251 are arranged opposite each other on the base 210 along the Y-axis. A lead screw and a handwheel are mounted on each support frame 251. The handwheel controls the rotation of the lead screw, thereby driving the lead screw nut to move up and down vertically. Both ends of the roller 252 are fixedly connected to the lead screw nuts on the two support frames 251, respectively. The movement of the lead screw nuts drives the roller 252 to move up and down. In other embodiments, a motor can be used instead of the handwheel to automate the entire device. Using a motor ensures synchronous control of the two support frames, making the roller horizontal and improving adjustment accuracy. However, using a motor is more expensive. The choice of method depends on the specific situation and is not limited here. In this embodiment, two adjustable support mechanisms 250 are provided, located on both sides of the following mechanism 220 along the X-axis. One end of the bellows cover 260 is connected to the adjustable support mechanism 250, and the other end is connected to the following mechanism 220. The two adjustable support mechanisms 250 provide stable support for the wound product. In other embodiments, only a support mechanism may be provided, with the two ends of the accordion cover connected to the following mechanism and the support mechanism respectively; or only one adjustable support mechanism may be provided, with the two ends of the accordion cover connected to the following mechanism and the adjustable support mechanism respectively, without specific limitations.

[0086] In another embodiment, the cutting device further includes a dust cover that houses the accompanying mechanism. The dust cover is a hollow cube with through holes for the winding product to pass through. An openable and closable baffle is provided on its outer surface. When the baffle is open, the diamond wire can be replaced, or the cutting mechanism or accompanying mechanism can be repaired. When the cutting device is running, closing the baffle prevents dust generated during cutting from splashing, optimizing the production environment. Through holes are provided on the base plate for dust to fall off. A dust collection pipe is fixedly connected to these through holes. When the base plate moves along the X-axis on the base, the dust collection pipe also moves accordingly. The dust collection pipe prevents dust accumulation from affecting the cutting mechanism and accompanying mechanism, and also extends their service life.

[0087] like Figure 9 As shown, the base 210 is also provided with a measuring mechanism 270. The measuring mechanism 270 includes a bracket 271 and a sensor (not shown) set on the bracket 271. The sensor is used to detect the position signal of the wound product and transmit it to the following mechanism 220 and the cutting mechanism 230 to control the following mechanism 220 to clamp the wound product and the cutting mechanism 230 to cut the wound product.

[0088] Specifically, in this embodiment, the measuring mechanism 270 further includes a synchronous belt 272, a synchronous pulley, and a measuring motor 273. The synchronous belt 272 is disposed on one side of the base 210 along the X-axis direction, and the bracket 271 is located on the synchronous belt 272. The measuring motor 273 drives the synchronous pulley to rotate, thereby driving the synchronous belt 272 to move. The bracket 271 can be moved to a certain position as needed, so that the distance between the bracket 271 and the diamond wire 2323 is equal to the length of the desired wound product. Thus, the cutting device 200 can be used to cut wound products of different lengths, with a wide range of applications. The setting of the measuring mechanism 270 enables the wound product cutting device 200 to automatically determine the length of the wound product and transmit signals to control the cutting, which is highly efficient, effectively reduces the error in the length accuracy of the cut product, and results in high-quality wound products.

[0089] After receiving the position signal of the wound product, the sensor sends a signal to the following mechanism 220. The clamping cylinder receives the signal and starts working, driving the gear to rotate. This causes the two gripper support frames 2222, connected to the rack, to move relative to each other along the Y-axis towards the wound product, so that the two grippers 2221 clamp the wound product and move together with it along the X-axis. After the clamping mechanism 222 completes clamping, the following mechanism 220 begins to move with the wound product. At this time, the piston rod of the cylinder on the base plate 221 extends outward as the base plate 221 moves. Simultaneously, the solenoid valve of the cylinder sends a signal to the cutting mechanism 230. The cutting motor 2321 receives the signal and drives the guide wheel 2322 to rotate, causing the diamond wire 2323 to move. The moving motor 2311 simultaneously receives the signal and drives the lead screw 2312 to rotate. The lead screw nut drives the cutting frame 232 to move vertically towards the wound product, completing the cutting.

[0090] Several yarns are placed on the yarn-laying device. After being drawn out by the yarn-laying device, the yarns enter the resin-impregnation device 120 of the winding molding equipment 100 to be impregnated with resin solution, and then enter the winding device 140. The winding molding equipment 100 is as described above and will not be repeated here.

[0091] The molding device includes a heating device, an outer mold and a core mold. One end of the core mold is fixed on the core mold fixing device 130, and the other end is inserted into the mold cavity of the outer mold after passing through two winding devices 140 in sequence. A tubular channel is formed between the core mold and the cavity wall. The heating device is set outside the outer mold. The yarn passes through the tubular channel and is heated and cured to form a wound product.

[0092] The traction device includes two alternating clamping and traction mechanisms, which can continuously form the product by pulling and winding it over a certain distance. The clamping and traction mechanism includes a sliding gripper slidably connected to the frame 110 and a movable gripper that can move vertically. The two grippers are arranged facing each other. A hydraulic cylinder drives the movable gripper, which can move vertically, to move downward, so that the movable gripper and the sliding gripper cooperate to clamp and wind the product. The sliding gripper can slide on the frame 110, allowing the clamping and traction mechanism to slide on the frame 110, thereby driving the two grippers to clamp and wind the product and move synchronously with the clamping and traction mechanism.

[0093] The pultrusion winding production line also includes a control system, which controls all process parameters during the pultrusion winding production process and provides feedback on the actual results. During operation, the control system maintains a fixed ratio between the set traction speed and the set winding speed of the pultruded product in a linked state, ensuring that the pultrusion and winding speeds are matched and guaranteeing product quality. Furthermore, the pultrusion winding production line is equipped with several sensors to measure the actual forward speed and actual winding speed of the pultruded product. When the ratio between the actual forward speed and actual winding speed deviates from the ratio between the set traction speed and the set winding speed, the control system automatically adjusts the winding speed and issues a speed difference alarm, preventing problems such as yarn accumulation, mold blockage, or even production line shutdown caused by mismatched pultrusion and winding speeds.

[0094] In this embodiment, the feedback control method for the winding speed is a semi-closed-loop control method. That is, the actual winding speed is obtained by detecting the rotation speed of the winding disk 142 and compared in the control system to achieve closed-loop control. Compared with the full closed-loop control method that uses angular velocity, it can effectively reduce costs while meeting control accuracy.

[0095] In yet another embodiment, a winding molding method is provided, employing the aforementioned winding molding production line, specifically including the following steps:

[0096] S101: A preform of a pultruded product formed by impregnating several yarns with resin and then pultruding and winding them outside a mandrel using a winding molding equipment 100;

[0097] First, an inner axial layer is formed by pultrusion outside the core mold. Several yarns from the yarn-making device are drawn out and threaded into the resin-impregnating device 120 to impregnate with resin. Specifically, several yarns drawn out from the yarn-making device are guided into the impregnation tank 124 through the yarn-collecting plate 122, that is, they are sequentially threaded into the gap between several impregnation rollers 1251 and the bottom plate of the impregnation tank 124 to impregnate with resin. Then, they are divided into two yarns by two yarn-separating plates 123, bypass the core mold fixing device 130, and gradually approach the core mold from both sides and cover the outer periphery of the core mold to form an inner axial layer by pultrusion.

[0098] Then, a winding layer is formed by winding the inner axial layer outside, resulting in a preform of the wound product. Several yarns from the yarn bobbin 145 on the winding device 140 are led out from the first yarn guide hole 1422 and sequentially threaded through the yarn guide 146, the second yarn guide hole 14311 on the yarn guide plate 1431, and the third yarn guide hole 14421 on the winding rod 1442. Then, they are immersed in resin in the winding impregnation tank 147 and then threaded into the fourth yarn guide hole 14431 on the winding part 1443. The winding motor 141 drives the winding device 140 to rotate, so that the yarns threaded on the winding device 140 continue to move, forming a winding layer outside the inner axial layer, thus obtaining the preform.

[0099] One or two winding devices 140 can be selected according to specific needs. When two winding devices 140 are used and the yarn winding angle is less than 85°, the yarn winding angle design has a significant impact on the mechanical properties of the product. Usually, two winding devices 140 need to be set up for bidirectional winding to make the yarn layup structure of the product symmetrical and the stress reasonable. When the yarn winding angle is greater than or equal to 85°, the yarn winding angle design has a smaller impact on the mechanical properties of the product. It can be approximated that the yarn winding angle is 90°. At this time, whether two winding devices 140 are set up for bidirectional or unidirectional winding, the final circumferential structure of the product can be considered to be approximately the same.

[0100] In one application scenario, the pultruded product can also have an outer axial layer. That is, after step S101, step S10 is included: forming an outer axial layer by pultrusion outside the winding layer to obtain a preform of the pultruded product. The specific process is similar to the step of forming the inner axial layer by pultrusion in S101, and will not be described again here.

[0101] In another application scenario, the wound product can also be provided with an inner lining layer. That is, before step S101, step S11 is included: covering the outer periphery of the mandrel with felt to form an inner lining layer. Specifically, the felt on the felt device 160 is impregnated with resin liquid in the felt roll impregnation tank 163 and then formed into a cylindrical shape by the felt guide and covered on the outer periphery of the mandrel to form an inner lining layer.

[0102] In another application scenario, the wound product can also be provided with an outer felt layer. That is, after step S101, step S12 is also included: wrapping the outer side of the winding layer with felt to form an outer felt layer, thereby obtaining a preform of the wound product. Specifically, the felt on the felt device 160 is impregnated with resin liquid in the felt roll impregnation tank 163 and then formed into a cylindrical shape by the felt guide to cover the outer periphery of the winding layer, forming an outer felt layer.

[0103] In another application scenario, the winding product can also be provided with an inner lining layer, an outer axial layer, and an outer felt layer at the same time. That is, step S11 is included before step S101, and steps S10 and S12 are included after step S101 in sequence. The details will not be repeated here.

[0104] In this step, when the pultrusion and winding speeds are mismatched, the control system will automatically adjust the winding speed and issue a speed difference alarm, as described above, and will not be repeated here.

[0105] S102: The preform enters the molding device and is cured at high temperature to form a filament-wound product. The traction device pulls the filament-wound product to move along the forming direction of the filament-wound product, continuously forming the filament-wound product.

[0106] The preform enters the molding device, where the yarn, already impregnated with resin, is threaded through the tubular channel between the core mold and the outer mold. After high-temperature curing, the winding product is obtained. The two clamping and traction mechanisms of the traction device alternately advance and continuously pull the winding product, so that the yarn continuously enters the molding device, and the cured winding product is continuously pulled out of the molding device and moves forward, resulting in uninterrupted production.

[0107] S103: Detect the position signal of the wound product and transmit it to the cutting device 200, so that the cutting device 200 cuts the wound product according to the preset length.

[0108] Before this step, adjust the positions of the adjustable support mechanism 250 and the measuring mechanism 270. Specifically, according to the size of the product being wound, manually rotate the handwheel of the adjustable support mechanism 250 to adjust the position of the roller 252 to support the product being wound, ensuring that the product being wound and the traction force it receives are in the same horizontal direction; according to the preset length of the product being wound, adjust the measuring mechanism 270, that is, drive the bracket 271 to adjust its position through the measuring motor 273, so that the distance between the bracket 271 and the diamond wire 2323 is equal to the preset length.

[0109] After the adjustable support mechanism 250 and the measuring mechanism 270 are adjusted into place, when the winding product passes through the cutting mechanism 230 and the distance between the end of the winding product and the cutting mechanism 230 is equal to the preset length, the winding product passes through the adjustable support mechanism 250, the clamping mechanism 222, the cutting mechanism 230, the clamping mechanism 222, the adjustable support mechanism 250, and several support mechanisms 240 in sequence until it moves to the bracket 271. The sensor on the bracket 271 detects the position signal of the winding product and sends it to the clamping cylinder. The clamping mechanism 222 clamps the winding product so that the following mechanism 220 moves synchronously with the winding product.

[0110] The cutting mechanism 230 cuts the wound product. Specifically, the clamping mechanism 222 completes clamping, and the following mechanism 220 begins to move with the product. At this time, the cutting motor 2321 receives the signal sent by the following mechanism 220 and drives the guide wheel 2322 to rotate, thereby moving the diamond wire 2323. When the guide wheel 2322 reaches the set speed, the moving motor 2311 drives the cutting frame 232 to move vertically towards the wound product, thus completing the cutting.

[0111] After cutting, the following mechanism 220 continues to move along the forming direction of the wound product on the base 210 to drive the clamping mechanism 220 to clamp and move the cut wound product. After the following mechanism 220 moves into position, the clamping mechanism 222 releases the cut wound product, placing it on the support mechanism 240 to await unloading. In other embodiments, the cut section of the wound product may be supported only by the support mechanism, awaiting unloading.

[0112] Finally, the cutting device 200 is reset, that is, the cutting mechanism 230 returns to its initial state and waits for the next cut; the following mechanism 220 returns to its initial position and waits for the next following.

[0113] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A winding molding production line for manufacturing winding products, characterized in that, Along the forming direction of the wound product, the device includes, in sequence, a yarn-laying device for placing yarn, a winding forming device for winding the yarn, a forming device for curing the yarn after it has been impregnated with adhesive into the wound product, a traction device for providing traction force, and a cutting device for cutting the wound product. The winding forming equipment includes a frame and, along the forming direction of the wound product, a glue-impregnation device, a mandrel fixing device, and a winding device arranged sequentially. The frame includes a first frame and a second frame. The mandrel fixing device is disposed on the first frame, and the winding device is vertically disposed on the second frame. The first frame and the second frame are separately disposed. The glue-impregnation device includes a glue-impregnation frame, a yarn collecting plate, two yarn separating plates, a glue-impregnation tank, and a glue-impregnation frame. The yarn collecting plate, the glue-impregnation tank, and the two yarn separating plates are arranged sequentially on the glue-impregnation frame along the length direction of the frame. The impregnation tank is a V-shaped groove. The impregnation frame is fitted to the inner bottom surface of the impregnation tank. The impregnation frame includes several impregnation rollers. The several impregnation rollers are arranged in a V-shape along the length of the frame at the bottom of the impregnation tank, and there is a certain gap between the several impregnation rollers and the inner bottom surface of the impregnation tank. The yarn is inserted into the gap and impregnated with the adhesive. Two yarn separating plates are arranged vertically at the end of the impregnation frame near the core mold fixing device. The two yarn separating plates are arranged opposite each other at a certain angle, and the opening direction of the angle is towards the yarn collecting plate. The cutting device includes a base, a following mechanism, a cutting mechanism, a support mechanism spaced apart on the base along the length of the base, and a bellows cover connecting the following mechanism and the support mechanism at both ends respectively. The cutting mechanism is disposed on the following mechanism. The following mechanism includes a base plate and a clamping mechanism. The clamping mechanism is used to clamp the winding product so that the following mechanism moves synchronously with the winding product. A clamping cylinder is provided on the base plate. The clamping mechanism includes two grippers movable along the width direction of the base and two gripper support frames. The two gripper support frames are arranged opposite each other on the base plate, and the two grippers are respectively located on opposite sides of the two gripper support frames. The clamping cylinder drives the two grippers to clamp the winding product. There are two clamping mechanisms, which are respectively arranged on both sides of the cutting mechanism along the forming forward direction of the winding product. A cylinder is also provided on the base plate, which drives the base plate to move on the base. A measuring mechanism and an adjustable support mechanism are also provided on the base. The measuring mechanism includes a bracket and a sensor arranged on the bracket. The sensor detects the position signal of the winding product and transmits it to the following mechanism to control the following mechanism to clamp the winding product. The adjustable support mechanism is arranged adjacent to the following mechanism and is used to adjust the support position of the winding product in the vertical direction.

2. The winding molding production line as described in claim 1, characterized in that: The winding molding equipment also includes several adhesive recovery tanks and several adhesive recovery boxes. The adhesive recovery tanks are horizontally arranged on the frame along the length of the frame and are all located below the yarn movement path. The bottom of the adhesive recovery tank is provided with a recovery hole, which is connected to the adhesive recovery box.

3. The winding molding production line as described in claim 1, characterized in that: The winding molding equipment also includes several height-adjustable support devices, which are arranged below the mandrel along the width direction of the frame, and the several support devices are distributed parallel to each other along the length direction of the frame.

4. The winding molding production line as described in claim 1, characterized in that: The winding device includes a winding motor, a winding disc, a yarn guide assembly, and a winding claw, which are sequentially sleeved around the outer periphery of the mandrel along the length of the frame. The winding disc, the yarn guide assembly, and the winding claw are all provided with yarn guide holes and correspond to each other. The yarn passes through the yarn guide holes on the winding disc, the yarn guide assembly, and the winding claw in sequence. The winding motor drives the winding device to rotate, thereby causing the yarn to wind around the outer periphery of the mandrel.

5. The winding molding production line as described in claim 4, characterized in that: The winding forming equipment includes two winding devices, which are arranged opposite each other along the length of the frame.

6. The winding molding production line as described in claim 1, characterized in that: The winding molding equipment also includes a felt device, which is fixedly mounted on the first frame and located above the core mold fixing device.

7. The winding molding production line as described in claim 1, characterized in that: The cutting mechanism includes a movable frame and a cutting frame. The movable frame is mounted on the base plate and drives the cutting frame to move in the vertical direction. The cutting frame is equipped with a cutting motor and at least two guide wheels. The at least two guide wheels are tensioned with diamond wire. The cutting motor drives the guide wheels to rotate, thereby causing the diamond wire to rotate, so as to cut the wound product.

8. A method for winding molding, using the winding molding production line as described in claim 1, characterized in that: Includes the following steps: S101: A preform of the pultruded product is formed by pultruding and winding the yarns outside the mandrel after they are impregnated with the adhesive liquid and then wound by the winding molding equipment. S102: The preform enters the molding device and is cured at high temperature to form the filament-wound product. The traction device pulls the filament-wound product to move along the molding direction of the filament-wound product, continuously molding the filament-wound product. S103: Detect the position signal of the wound product and transmit it to the cutting device, so that the cutting device cuts the wound product according to a preset length.

9. The winding molding method as described in claim 8, characterized in that: In step S101, an inner axial layer is formed by pultrusion outside the mandrel, and a winding layer is formed by winding outside the inner axial layer.

10. The winding molding method as described in claim 9, characterized in that: After step S101, step S10 is further included: forming an outer axial layer by pultrusion outside the winding layer; And / or, prior to step S101, step S11 is further included: covering the outer periphery of the core mold with felt to form an inner lining layer; And / or, after step S101, step S12 is also included: covering the outside of the winding layer with felt to form an outer felt layer.

11. The winding molding method as described in claim 8, characterized in that: In step S103, the clamping mechanism clamps the winding product, the following mechanism moves with the winding product, and the cutting mechanism cuts the winding product.

12. The winding molding method as described in claim 11, characterized in that: After cutting is completed, the following mechanism continues to move along the forming direction of the wound product to drive the clamping mechanism to clamp the cut wound product and move it into place, and the cutting device is reset.

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