Pultrusion yarn guide device

Abstract

The present application relates to the technical field of pultrusion, in particular to a pultrusion yarn guide device, comprising: a yarn guide frame, a fixed cross beam is fixedly connected to the middle of the yarn guide frame; a yarn guide assembly is arranged at one end of the yarn guide frame, and the yarn guide assembly is used for threading the yarn while avoiding friction with the yarn, the yarn guide assembly comprises a plurality of yarn guide plates and a ventilation frame, and the middle of each yarn guide plate is provided with a first yarn guide hole for threading the yarn. The driving motor is electrified to drive the threaded rods to rotate, the threaded rods drive two driving frames to move close to or away from each other respectively, the two threaded rods stretch or contract the scissor-type telescopic structure formed by a plurality of articulated rods, the articulated rods drive a plurality of adjusting frames to move close to or away from each other at equal distances, and the adjusting frames drive a plurality of mounting frames to move close to or away from each other at equal distances through the connecting columns, so that the plurality of yarn guide plates are driven to move close to or away from each other at equal distances, and the purpose of adjusting the first yarn guide hole at equal distances is achieved.

Description

Technical Field

[0001] This invention relates to the field of pultrusion molding technology, specifically to a pultrusion yarn guiding device. Background Technology

[0002] Pultrusion is a process in which continuous fibers or fiber fabrics are thoroughly impregnated with resin and then cured under heat in a molding die under the traction of a traction device to produce composite material profiles. Compared with other composite material production processes, pultrusion has advantages such as high raw material utilization, high production efficiency, high dimensional accuracy of products, and good product surface quality. The main steps of pultrusion include yarn guiding, resin impregnation, preforming, curing, traction, and cutting. Currently, the commonly used resin impregnation method involves immersing the traction-driven continuous fibers into a resin bath. After impregnation, the fibers are traction-driven through a preforming fixture, where excess resin is squeezed out, giving the initial product shape. Finally, the fibers enter a heated mold cavity for curing. Currently, pultrusion processes commonly employ yarn guides for yarn mounting and threading. For example, CN117922059A discloses a high-efficiency yarn guide frame and method for pultrusion processes. This high-efficiency yarn guide frame includes a yarn guide frame with mounting rails spaced along its width. Each set of mounting rails includes two parallel single rails. Each set of mounting rails is fitted with a group of yarn guide plates, each group consisting of multiple yarn guide plates sequentially threaded onto the two single rails. The first yarn guide plate has at least one row of threading holes, and the number of rows of threading holes on the remaining yarn guide plates increases sequentially with a difference of one row. The corresponding threading holes on adjacent yarn guide plates are coaxially arranged. This invention, through a redesign of the structure and yarn guide holes of the yarn guide frame for pultrusion processes, achieves complete yarn mounting and merging of yarn guides, significantly improving the efficiency of yarn mounting and traction in the pultrusion process. It reduces fiber waste and labor costs caused by frequent yarn changes, while also effectively improving product quality stability.

[0003] However, in actual use, the yarn guide hole positions cannot be adjusted, and if a single hole malfunctions after prolonged use, the entire yarn guide plate needs to be replaced, resulting in a short service life for the yarn guide plate. Summary of the Invention

[0004] The purpose of this invention is to provide a pultrusion yarn guiding device to solve the problems that the yarn guiding hole position cannot be adjusted and that the entire yarn guiding plate needs to be replaced when a single hole position malfunctions after long-term use, resulting in a short service life of the yarn guiding plate.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a pultrusion yarn guiding device, comprising: A yarn guide frame, wherein a fixed crossbeam is fixedly connected to the middle part of the yarn guide frame; A yarn guiding assembly is provided at one end of the yarn guide frame. The yarn guiding assembly is used to guide the yarn while avoiding friction with the yarn. The yarn guiding assembly includes multiple yarn guiding plates and a ventilation frame. The middle of the yarn guiding plate is provided with a first yarn guiding hole for guiding the yarn. The ventilation frame is provided with a second yarn guiding hole in the middle of the position corresponding to the first yarn guiding hole. The inner wall of the second yarn guiding hole is provided with multiple air outlets in an annular shape for blowing out airflow, so that the air outlets blow the yarn up and avoid excessive friction between the yarn and the first yarn guiding hole. An adjustment component two is set at one end of the yarn guide frame, and the adjustment component two provides an installation position for the yarn guide assembly. At the same time, it drives multiple yarn guide plates to perform equidistant longitudinal adjustment. The adjustment component two includes a connecting frame, on which multiple mounting frames for installing yarn guide plates and ventilation frames are movably provided, and the multiple mounting frames move at equal distances on the connecting frame. An adjustment component one is set at one end of the yarn guide frame, and the adjustment component one is used to support the adjustment component two and the yarn guide component, while also making lateral adjustments to the adjustment component two and the yarn guide component.

[0006] Preferably, two adjacent yarn guide plates are symmetrically arranged, and the mounting frame has a mounting groove at the top corresponding to the position of the yarn guide plate. The yarn guide plate is movably connected to the inner wall of the mounting groove. The bottom of the yarn guide plate and the inner wall of the mounting groove are both T-shaped structures. A first through hole is opened in the middle of the yarn guide plate. A drive column is movably inserted into the inner wall of the first through hole. The top of the cross-section of the drive column is an arc-shaped structure and the bottom is an elliptical structure.

[0007] Preferably, the yarn guide plate has a first movable groove at the center of the position corresponding to the first through hole. The first movable groove is connected to the inner wall of the first through hole and extends through and to the bottom of one end of the yarn guide plate. A positioning frame is movably connected to the inner wall of the first movable groove and is tightly fitted to the surface of the drive column. The positioning frame has an inverted U-shaped structure. The inner wall of the yarn guide plate has a second movable groove that is connected to the inside of the first movable groove. A return spring is fixedly connected to the bottom of the inner wall of the second movable groove and is fixedly connected to the center of the positioning frame. The mounting frame has a third positioning hole at the bottom of the position corresponding to the positioning frame, so that when the drive column presses the positioning frame downward, the bottom of the positioning frame is inserted into the third positioning hole to complete the positioning of the yarn guide plate and the mounting frame.

[0008] Preferably, a magnetic positioning protrusion is fixedly embedded in the middle of one end of the yarn guide plate, and a magnetic positioning recess is fixedly embedded in the middle of the other end of the yarn guide plate, so that two adjacent yarn guide plates can be accurately positioned by the magnetic positioning protrusion cooperating with the magnetic positioning recess. One end of the drive column is fixedly connected to a threaded column, which is threadedly connected to the middle of one end of the connecting frame, and the other end of the drive column moves through the middle of the other end of the connecting frame.

[0009] Preferably, the ventilation frame has a hollow structure in the middle, and the interior of the air outlet is connected to the interior of the ventilation frame. The mounting bracket has a second through hole in the middle of the position corresponding to the ventilation frame, which is connected to the interior of the ventilation frame. The bottom of the inner wall of the second through hole is threaded with a three-way hole. Corrugated telescopic tubes are fixedly connected to the inner walls of two adjacent three-way holes, and one end of the end of the corrugated telescopic tube is connected to the air pump. A rubber ring is snapped into one end of the inner wall of the second yarn guide hole so that the ventilation frame can be protected by replacing the rubber ring. The inner walls of the second yarn guide hole and the inner walls of the air outlet are both inclined structures so that the gas sprayed from the air outlet blows the yarn up and places it in the middle of the second yarn guide hole.

[0010] Preferably, the yarn guide plate has a notch at one end corresponding to the position of the first through hole, and the notch is connected to the interior of the first through hole. The yarn guide plate has a deformation hole at one end corresponding to the position of the notch, and the deformation hole is located at the bottom of the notch, so as to facilitate the drive column to pass through the yarn guide plate at the position of the notch and the deformation hole and disengage from the first through hole.

[0011] Preferably, the connecting frame has a hollow structure in the middle, and a threaded rod is rotatably connected to the middle of the connecting frame via a bearing. Multiple adjusting frames are provided at the bottom of the connecting frame, the number of which is equal to the number of mounting frames. The adjusting frames are located at the bottom of the mounting frames. Connecting columns are fixedly connected to both ends of the adjusting frames and mounting frames at corresponding positions. Two hinged rods are hinged to the middle of the top of each adjusting frame, with the corresponding ends of two adjacent hinged rods hinged together to form a scissor-type telescopic structure. A drive frame is hinged to the middle of the top of each adjusting frame at both ends, and the drive frame is threadedly connected to... The threaded rod has a fixed frame movably connected to the top of the hinge rod located at the middle position of the multiple hinge rods. The fixed frame is fixedly connected to the middle of the connecting frame so that the fixed frame limits the middle position of the multiple hinge rods. The threaded rod is rotatably connected to the middle of the fixed frame through a bearing. The bottom of the adjusting frame is fixedly connected to a guide frame, and a guide post is movably inserted into the inner wall of the guide frame so that the guide post cooperates with the guide frame to guide the movement of the adjusting frame. Adjacent guide frames are staggered. One end of the threaded rod is fixedly connected to a drive motor, and the drive motor is fixedly connected to one end of the connecting frame through a motor bracket.

[0012] Preferably, the adjusting assembly includes a support frame fixedly connected to the surface of the yarn guide frame by bolts. A movable frame is movably sleeved on the surface of the support frame. The guide post is fixedly connected to the surface of the movable frame. An adjusting groove is formed in the middle of the support frame. A first positioning post is movably connected to the inner wall of the adjusting groove. The first positioning post has a rectangular structure and movably extends through and to both ends of the movable frame. There are two first positioning posts, and the two first positioning posts are respectively located at both ends of the middle of the movable frame. A second positioning ring is movably sleeved at both ends of the surface of each first positioning post. Each of the two rings is hinged with a first connecting rod. One end of each of the two first connecting rods is hinged with a first hinge seat at a corresponding position. One end of the first hinge seat is hinged with a second connecting rod. The end of the second connecting rod away from the first hinge seat is hinged with a second hinge seat. A threaded sleeve is fixedly connected to the middle of the second hinge seat. A drive rod is threadedly connected to the inner wall of the threaded sleeve. The drive rod movably passes through and extends to the outside of the movable frame. A locking frame is hinged to the end of the drive rod away from the movable frame. The end of the locking frame corresponding to the movable frame position is an eccentric structure. The surface of the locking frame is in close contact with the surface of the drive rod.

[0013] Preferably, the movable frame has a second positioning hole at the center corresponding to the position of the first positioning post, and the first positioning post is movably inserted into the inner wall of the second positioning hole. A limit ring is fixedly connected to one end surface of the first positioning post, and the surface of the limit ring is tightly fitted to one end surface of the movable frame. The surfaces of the limit ring, the second positioning ring, the inner wall of the support frame, and the movable frame are all roughened so that the position of the movable frame can be fixed when the second positioning ring is fitted to the support frame and when the limit ring is fitted to the movable frame. A first positioning hole is opened at the end of the first positioning post away from the position of the limit ring, and a positioning rod is movably inserted into the inner wall of each of the two first positioning holes. A movable hole is opened in the middle of the positioning rod, and a locking frame is located inside the movable hole to provide space for driving the locking frame to rotate. There are two movable frames, and the two movable frames are respectively fixedly connected to the two ends of the bottom of the connecting frame. A guide sleeve is fixedly connected to the corresponding end of each of the two movable frames, and the drive rod moves through the guide sleeve so that the guide sleeve supports and protects the drive rod.

[0014] Compared with the prior art, the beneficial effects of the present invention are: This invention drives a threaded rod to rotate by energizing a drive motor. The threaded rod then drives two drive frames to move closer or further apart. The two threaded rods stretch or contract the scissor-like telescopic structure formed by multiple hinged rods. The hinged rods drive multiple adjusting frames to move closer or further apart at equal distances. The adjusting frames, through connecting columns, drive multiple mounting frames to move closer or further apart at equal distances. This achieves the goal of driving multiple yarn guide plates to move closer or further apart at equal distances, thus enabling equal-distance adjustment of the first yarn guide hole. This invention also removes the yarn guide plate from the inner wall of the mounting groove and moves it to one end. Under the action of driving the yarn guide plate to move to one end, the driving column will squeeze the yarn guide plate at the notch and deformation hole position, causing the yarn guide plate to deform until the driving column disengages from the inner wall of the first through hole. At this point, the yarn guide plate can be replaced. The new yarn guide plate is first placed through the notch so that the driving column is located on the inner wall of the first through hole in the middle of the new yarn guide plate. Then the yarn guide plate is moved to the inner wall of the mounting groove in the middle of the target mounting frame, thereby achieving the purpose of replacing the yarn guide plate separately. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the pultrusion yarn guiding device of the present invention; Figure 2 This is a schematic diagram of the adjusting component of the pultrusion yarn guiding device of the present invention. Figure 1 ; Figure 3 This is a schematic diagram of the yarn guiding assembly of the pultrusion yarn guiding device of the present invention; Figure 4 This is a schematic diagram of the second adjusting component of the pultrusion yarn guiding device of the present invention. Figure 1 ; Figure 5 This is a schematic diagram of the second adjusting component of the pultrusion yarn guiding device of the present invention. Figure 2 ; Figure 6 This is a schematic diagram of the adjusting component of the pultrusion yarn guiding device of the present invention. Figure 2 ; Figure 7 This is a cross-sectional view of the adjusting assembly of the pultrusion yarn guiding device of the present invention; Figure 8 This is an exploded view of the structure of the adjusting component of the pultrusion yarn guiding device of the present invention; Figure 9 A cross-sectional view of the yarn guiding assembly of the pultrusion yarn guiding device of the present invention. Figure 1 ; Figure 10 A cross-sectional view of the yarn guiding assembly of the pultrusion yarn guiding device of the present invention. Figure 2 .

[0016] In the diagram: 1. Yarn guide frame; 201. Support frame; 202. Movable frame; 203. Adjustment groove; 204. First positioning pin; 205. Positioning rod; 206. Second positioning ring; 207. First connecting rod; 208. First hinge seat; 209. Second connecting rod; 210. Second hinge seat; 211. Threaded sleeve; 212. Drive rod; 213. Locking frame; 214. Limiting ring; 215. First positioning hole; 216. Second positioning hole; 217. Movable hole; 218. Guide sleeve; 301. Connecting frame; 302. Threaded rod; 303. Adjusting frame; 304. Connecting column; 305. Mounting frame; 306. Hinge rod; 307. Drive frame; 308. Fixing frame; 309. Guide frame; 310. Guide column; 311. Drive motor; 401. Yarn guide plate; 402. Mounting groove; 403. First yarn guide hole; 404. First through hole; 405. Drive column; 406. First movable groove; 407. Positioning frame; 408. Second movable groove; 409. Return spring; 410. Third positioning hole; 411. Magnetic positioning protrusion; 412. Magnetic positioning recess; 413. Ventilation frame; 414. Second yarn guide hole; 415. Air outlet; 416. Second through hole; 417. T-hole; 418. Corrugated telescopic tube; 419. Rubber ring; 420. Notch; 421. Deformation hole; 422. Threaded column; 5. Fix the crossbeam. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Please see Figure 1-10 The present invention provides a technical solution: a pultrusion yarn guiding device, comprising: A yarn guide frame 1 is provided, and a fixed crossbeam 5 is fixedly installed in the middle of the yarn guide frame 1. A yarn guiding assembly is provided at one end of the yarn guide frame 1. The yarn guiding assembly is used to guide the yarn and avoid friction with the yarn. The yarn guiding assembly includes multiple yarn guiding plates 401 and a ventilation frame 413. The middle part of the yarn guiding plate 401 is provided with a first yarn guiding hole 403 for guiding the yarn. The ventilation frame 413 is provided with a second yarn guiding hole 414 in the middle part corresponding to the position of the first yarn guiding hole 403. The inner wall of the second yarn guiding hole 414 is provided with multiple air outlets 415 in an annular shape for spraying airflow, so that the air outlets 415 blow the yarn up and avoid excessive friction between the yarn and the first yarn guiding hole 403. An adjustment component two is provided at one end of the yarn guide frame 1, and the adjustment component two provides an installation position for the yarn guide assembly. At the same time, it drives multiple yarn guide plates 401 to perform equidistant longitudinal adjustment. The adjustment component two includes a connecting frame 301. Multiple mounting frames 305 for mounting the yarn guide plates 401 and the ventilation frame 413 are movably provided on the connecting frame 301, and the multiple mounting frames 305 move at equal distances on the connecting frame 301. An adjustment component 1 is provided at one end of the yarn guide frame 1, and the adjustment component 1 is used to support the adjustment component 2 and the yarn guide component, and at the same time, the adjustment component 2 and the yarn guide component are adjusted laterally.

[0019] Two adjacent yarn guide plates 401 are symmetrically arranged. The mounting bracket 305 has a mounting groove 402 at the top corresponding to the position of the yarn guide plate 401. The yarn guide plate 401 is movably connected to the inner wall of the mounting groove 402. The bottom of the yarn guide plate 401 and the inner wall of the mounting groove 402 are both T-shaped structures. A first through hole 404 is opened in the middle of the yarn guide plate 401. A drive column 405 is movably inserted into the inner wall of the first through hole 404. The top of the cross-section of the drive column 405 is an arc-shaped structure and the bottom is an elliptical structure. A first movable groove 406 is provided in the middle of the yarn guide plate 401 corresponding to the position of the first through hole 404. The first movable groove 406 is connected to the inner wall of the first through hole 404 and extends through and to the bottom of one end of the yarn guide plate 401. A positioning frame 407 is movably connected to the inner wall of the first movable groove 406, and the positioning frame 407 is tightly attached to the surface of the drive column 405. The positioning frame 407 has an inverted U-shaped structure. The inner wall of the yarn guide plate 401 is provided with a groove that connects to the first movable groove 404. The second movable groove 408 is internally connected to the 06. A return spring 409 is fixedly installed at the bottom of the inner wall of the second movable groove 408, and the return spring 409 is fixedly installed in the middle of the positioning frame 407. The mounting frame 305 has a third positioning hole 410 at the bottom corresponding to the position of the positioning frame 407, so that when the drive column 405 presses the positioning frame 407 downward, the bottom of the positioning frame 407 is inserted into the third positioning hole 410 to complete the positioning of the yarn guide plate 401 and the mounting frame 305. A magnetic positioning protrusion 411 is fixedly embedded in the middle of one end of the 01, and a magnetic positioning recess 412 is fixedly embedded in the middle of the other end of the yarn guide plate 401, so that two adjacent yarn guide plates 401 can be accurately positioned by the magnetic positioning protrusion 411 cooperating with the magnetic positioning recess 412. A threaded post 422 is fixedly installed at one end of the drive post 405. The threaded post 422 is threadedly connected to the middle of one end of the connecting frame 301, and the other end of the drive post 405 moves through the middle of the other end of the connecting frame 301. In use, the above structure first arranges multiple yarn guide plates 401 so that adjacent yarn guide plates 401 are symmetrically arranged, and the magnetic positioning protrusion 411 and magnetic positioning recess 412 are magnetically attracted. At this time, multiple yarn guide plates 401 can be inserted into the mounting groove 402 of the end mounting bracket 305 until all the yarn guide plates 401 are completely placed into the inner wall of the mounting groove 402. At this time, the drive column 405 is rotated. Since the top of the cross-section of the drive column 405 is a circular structure and its bottom is an elliptical structure, where the radius of the elliptical structure is smaller than the radius of the circular structure, the drive column 405 will drive the positioning bracket 407 to move downward and squeeze the return spring 409. At the same time, the bottom of the positioning bracket 407 will be inserted into the inner wall of the third positioning hole 410. That is, at this time, the yarn guide plate 401 can be positioned with the mounting bracket 305 through the positioning bracket 407 and the third positioning hole 410, thus completing the installation of the yarn guide plate 401.

[0020] The ventilation frame 413 has a hollow structure in the middle, and the interior of the air outlet 415 is connected to the interior of the ventilation frame 413. The mounting bracket 305 has a second through hole 416 in the middle corresponding to the position of the ventilation frame 413, which is connected to the interior of the ventilation frame 413. A three-way hole 417 is threaded to the bottom of the inner wall of the second through hole 416. Corrugated expansion tubes 418 are fixedly installed on the inner walls of two adjacent three-way holes 417, and one end of the corrugated expansion tube 418 at the end is connected to the air pump. A rubber ring 419 is snapped into one end of the inner wall of the second yarn guide hole 414, so that the ventilation frame 413 can be protected by replacing the rubber ring 419. The inner walls of the second yarn guide hole 414 and the inner walls of the air outlet 415 are both inclined structures, so that the gas ejected from the air outlet 415 blows the yarn up and places it in the middle of the second yarn guide hole 414. The yarn guide plate 401 has a notch 420 at one end corresponding to the position of the first through hole 404, and the notch 420 is connected to the interior of the first through hole 404. The yarn guide plate 401 has a deformation hole 421 at one end corresponding to the position of the notch 420, and the deformation hole 421 is located at the bottom of the notch 420, so that the drive column 405 can pass through the yarn guide plate 401 at the positions of the notch 420 and the deformation hole 421 and disengage from the first through hole 404. In use, the yarn is passed through the second yarn guide hole 414 and the first yarn guide hole 403 respectively. Gas is pumped into the corrugated telescopic tube 418 by an air pump, and the gas is ejected from the air outlet 415 through the corrugated telescopic tube 418, the three-way hole 417, the second through hole 416 and the ventilation frame 413. The ejected airflow can support the yarn and prevent the yarn from relying too much on the second yarn guide hole 414 and the first yarn guide hole 403. This would prevent the second yarn guide hole 414 and the first yarn guide hole 403 from wearing out and needing to be replaced after long-term use, thereby improving the service life of the yarn guide plate 401. At the same time, the rubber ring 419 is provided so that it can be easily removed and replaced, thus preventing the second yarn guide hole 414 from easily rubbing against the yarn and causing a short service life.

[0021] The connecting frame 301 has a hollow structure in the middle, and a threaded rod 302 is rotatably connected to the middle of the connecting frame 301 via a bearing. Multiple adjusting frames 303 are provided at the bottom of the connecting frame 301, with the number of adjusting frames 303 equal to the number of mounting frames 305. The adjusting frames 303 are located at the bottom of the mounting frames 305. Connecting columns 304 are fixedly installed at both ends of the adjusting frames 303 and the mounting frames 305 at corresponding positions. Two hinged rods 306 are hinged to the middle of the top of the adjusting frame 303, with corresponding ends of two adjacent hinged rods 306 hinged to each other, forming a scissor-type telescopic structure. A drive frame 307 is hinged to the middle of the top of each of the two adjusting frames 303, and the drive frame 307 is threaded onto the surface of the threaded rod 302. On the surface, a fixed frame 308 is movably connected to the top of the multiple hinge rods 306 located in the middle position, and the fixed frame 308 is fixedly installed in the middle of the connecting frame 301 so that the fixed frame 308 limits the middle position of the multiple hinge rods 306. The threaded rod 302 is rotatably connected to the middle of the fixed frame 308 through a bearing. A guide frame 309 is fixedly installed at the bottom of the adjusting frame 303, and a guide post 310 is movably inserted into the inner wall of the guide frame 309 so that the guide post 310 cooperates with the guide frame 309 to guide the movement of the adjusting frame 303. Adjacent guide frames 309 are staggered. A drive motor 311 is fixedly installed at one end of the threaded rod 302, and the drive motor 311 is fixedly installed at one end of the connecting frame 301 through a motor bracket. In use, the above structure drives the threaded rod 302 to rotate, causing the threaded rod 302 to drive the two drive frames 307 to move closer or further apart. The two threaded rods 302 stretch or contract the scissor-like telescopic structure formed by the multiple hinged rods 306, causing the hinged rods 306 to drive the multiple adjusting frames 303 to move closer or further apart at equal distances. The adjusting frames 303, through the connecting column 304, drive the multiple mounting frames 305 to move closer or further apart at equal distances. This achieves the goal of driving the multiple yarn guide plates 401 to move closer or further apart at equal distances, thus enabling the adjustment of the first yarn guide hole 403 at equal distances.

[0022] The adjustment assembly includes a support frame 201 fixedly mounted on the surface of the yarn guide frame 1 by bolts. A movable frame 202 is movably sleeved on the surface of the support frame 201. A guide post 310 is fixedly mounted on the surface of the movable frame 202. An adjustment groove 203 is provided in the middle of the support frame 201. A first positioning post 204 is movably connected to the inner wall of the adjustment groove 203. The first positioning post 204 has a rectangular structure and movably extends through and to both ends of the movable frame 202. There are two first positioning posts 204, and the two first positioning posts 204 are located at the two ends of the middle of the movable frame 202, respectively. A second positioning ring 206 is movably sleeved at both ends of the surface of each first positioning post 204. Each surface of the positioning ring 206 is hinged with a first connecting rod 207. One end of each first connecting rod 207 at a corresponding position is hinged with a first hinge seat 208. One end of each first hinge seat 208 is hinged with a second connecting rod 209. The end of the second connecting rod 209 furthest from the first hinge seat 208 is hinged with a second hinge seat 210. A threaded sleeve 211 is fixedly installed in the middle of the second hinge seat 210, and a drive rod 212 is threadedly connected to the inner wall of the threaded sleeve 211. The drive rod 212 movably passes through and extends to the outside of the movable frame 202. A locking frame 213 is hinged to the end of the drive rod 212 furthest from the movable frame 202, and the end of the locking frame 213 corresponding to the position of the movable frame 202 has an eccentric structure. The surface of the locking frame 213 is in close contact with the surface of the drive rod 212. A second positioning hole 216 is provided in the middle of the movable frame 202 corresponding to the position of the first positioning post 204. The first positioning post 204 is movably inserted into the inner wall of the second positioning hole 216. A limit ring 214 is fixedly installed on one end surface of the first positioning post 204, and the surface of the limit ring 214 is in close contact with one end surface of the movable frame 202. The surfaces of the limit ring 214, the second positioning ring 206, the inner wall of the support frame 201, and the movable frame 202 are all roughened to ensure that the second positioning ring 206 is in contact with the support frame 201 and the limit ring 214 is in contact with the movable frame 202, thus allowing for proper positioning of the movable frame 202. The first positioning post 204 is fixed at one end away from the limiting ring 214, and a first positioning hole 215 is opened at one end. The inner walls of the two first positioning holes 215 are movably inserted with positioning rods 205. A movable hole 217 is opened in the middle of the positioning rod 205, and the locking frame 213 is located inside the movable hole 217 to provide space for driving the locking frame 213 to rotate. There are two movable frames 202, and the two movable frames 202 are respectively fixedly installed at both ends of the bottom of the connecting frame 301. A guide sleeve 218 is fixedly installed at the corresponding end of the two movable frames 202, and the driving rod 212 moves through the guide sleeve 218 so that the guide sleeve 218 supports and protects the driving rod 212. In use, the above structure is first installed at both ends of the yarn guide frame 1 at the same height using bolts. Then, the two movable frames 202, fixed by guide sleeves 218, are respectively fitted onto the surfaces of the support frames 201. Next, the two first positioning pins 204 are respectively inserted through the second positioning hole 216 in the middle of the movable frame 202 and the adjusting groove 203 in the middle of the support frame 201, so that the positioning rod 205 is simultaneously inserted into the first positioning hole 215 in the two first positioning pins 204, thus fixing the first positioning pins 204. Finally, the drive rod 212 is inserted into the middle of the movable frame 202, causing the drive rod... The threaded position 212 is threadedly connected to the threaded sleeve 211. After that, rotating the locking frame 213 will cause the locking frame 213 to drive the second hinge seat 210 to move towards one end of the locking frame 213 through the drive rod 212 and the threaded sleeve 211. This will cause the second hinge seat 210 to drive the two second positioning rings 206 away from each other through the second connecting rod 209 and the first hinge seat 208 and the first connecting rod 207. This will cause the two second positioning rings 206 to fit tightly against the inner wall of the support frame 201, so that the second positioning rings 206 and the support frame 201 remain relatively stationary, thereby achieving the purpose of moving and adjusting the first adjustment component.

[0023] The working principle corresponding to the above structure is as follows: During use, when installing the device, firstly, two support frames 201 are bolted to both ends of the yarn guide frame 1 at the same height. Then, two movable frames 202, fixedly connected by guide sleeves 218, are respectively fitted onto the surface of the support frames 201. Next, two first positioning pins 204 are respectively inserted through the second positioning hole 216 in the middle of the movable frame 202 and the adjustment groove 203 in the middle of the support frame 201, ensuring that the limiting ring 214 and the guide sleeve 218 are at the same end. During the process of the first positioning pin 204 penetrating the second positioning hole 216 in the middle of the movable frame 202 and the adjustment groove 203 in the middle of the support frame 201, the second positioning ring 206 and the first positioning pin 204 are first inserted into the second positioning hole 216 in the middle of the movable frame 202 and the adjustment groove 203 in the middle of the support frame 201. The positions of rod 207, first hinge seat 208, second connecting rod 209, and second hinge seat 210 are determined such that when the first positioning post 204 penetrates the adjusting groove 203, it can simultaneously penetrate the corresponding two second positioning rings 206. Simultaneously, the two first positioning posts 204 need to penetrate the support frame 201 and the movable frame 202 sequentially. That is, when one of the first positioning posts 204 penetrates the support frame 201, the second positioning ring 206, and the movable frame 202, the positioning rod 205 is inserted into the first positioning hole 215 of that first positioning post 204, ensuring that the positioning rod 205 does not obstruct the other first positioning post 204 from penetrating the support frame 201 and the movable frame 202. When the other first positioning post 204 penetrates the support frame 201, the second positioning ring 206, and the movable frame 202, the positioning rod 205 is inserted into the first positioning hole 215 of that first positioning post 204, ensuring that the positioning rod 205 does not obstruct the other first positioning post 204 from penetrating the support frame 201 and the movable frame 202. When the movable frame 202 is in place, the positioning rod 205 is moved and simultaneously inserted into the first positioning hole 215 of the two first positioning posts 204, thus fixing the first positioning posts 204. Then, the drive rod 212 is inserted into the middle of the movable frame 202, and the threaded position of the drive rod 212 is threadedly connected to the threaded sleeve 211. This completes the assembly of the first adjustment component. When the position of the movable frame 202 needs to be determined, the locking frame 213 is rotated. Because the locking frame 213 is tightly fitted to the movable frame 202, and because the locking frame 213 has an eccentric structure, when the locking frame 213 rotates, it causes the second hinge seat 210 to move towards the locking frame 202 via the drive rod 212 and the threaded sleeve 211. One end of 13 moves, causing the second hinge seat 210 to drive the two second positioning rings 206 away from each other through the second connecting rod 209 in conjunction with the first hinge seat 208 and the first connecting rod 207. This causes the two second positioning rings 206 to fit tightly against the inner wall of the support frame 201, thus keeping the second positioning rings 206 and the support frame 201 relatively stationary. That is, the position of the movable frame 202 is determined by the second positioning rings 206 in conjunction with the first positioning post 204. When it is necessary to move the movable frame 202, the locking frame 213 can be rotated in the opposite direction. That is, the driving rod 212 no longer drives the second connecting rod 209 to drive the two second positioning rings 206 to press against the inner wall of the support frame 201 through the first hinge seat 208 in conjunction with the movable hole 217.At this point, the second positioning ring 206 can move relative to the inner wall of the support frame 201, allowing the movable frame 202 to move along the inner wall of the support frame 201, thus achieving the purpose of moving and adjusting the first adjustment component. When installing the yarn guide assembly, first adjust the assembly two to the initial state where the multiple mounting brackets 305 are tightly fitted. Simultaneously, arrange the multiple yarn guide plates 401 so that adjacent yarn guide plates 401 are symmetrically positioned, and ensure that the magnetic positioning protrusion 411 and magnetic positioning recess 412 are magnetically attracted. Then, insert the multiple yarn guide plates 401 into the mounting slots 402 of the end mounting brackets 305 until all yarn guide plates 401 are completely inserted into the inner wall of the mounting slots 402. Next, insert the drive post 405 through the connecting bracket 301, ensuring that the drive post 405 passes through the first through hole 404 in the middle of each of the multiple yarn guide plates 401. Finally, thread the threaded post 422 to one end of the connecting bracket 301, and allow the other end of the drive post 405 to movably pass through the connecting bracket 301. At the other end of the bracket 301, the installation of the mounting bracket 305 is now complete. Fine-tune the threaded post 422 so that it drives the drive post 405 to rotate. Since the top of the cross-section of the drive post 405 is a circular structure and the bottom is an elliptical structure, with the radius of the elliptical structure being smaller than the radius of the circular structure, when the circular position of the drive post 405 corresponds to the position of the positioning bracket 407, the drive post 405 will drive the positioning bracket 407 to move downward and compress the return spring 409. At the same time, the bottom of the positioning bracket 407 will insert into the inner wall of the third positioning hole 410. That is, at this time, the guide plate 401 can be positioned with the mounting bracket 305 through the positioning bracket 407 and the third positioning hole 410, thus completing the installation of the guide plate 401. The yarn passes through the second yarn guide hole 414 and the first yarn guide hole 403 respectively. The yarn moves from the second yarn guide hole 414 to the first yarn guide hole 403. Gas is pumped into the corrugated telescopic tube 418 by an air pump. The gas passes through the corrugated telescopic tube 418, the three-way hole 417, the second through hole 416 and the ventilation frame 413 and finally sprays out from the air outlet 415. The sprayed air can support the yarn and prevent the yarn from relying too much on the second yarn guide hole 414 and the first yarn guide hole 403. This prevents the second yarn guide hole 414 and the first yarn guide hole 403 from wearing out and needing to be replaced after long-term use. This improves the service life of the yarn guide plate 401. At the same time, the rubber ring 419 is set so that it can be easily removed and replaced, which prevents the second yarn guide hole 414 from easily rubbing against the yarn and causing a short service life. When the yarn guide plate 401 is damaged and needs to be replaced, first rotate the drive column 405 so that the elliptical surface of the drive column 405 corresponds to the position of the positioning frame 407. At this point, under the reset tension of the return spring 409, the return spring 409 will cause the positioning frame 407 to disengage from the third positioning hole 410. Then, adjust the gap between the mounting brackets 305 at both ends of the problematic yarn guide plate 401 so that the gap between the mounting brackets 305 at this position can accommodate the yarn guide plate 401. Then, move the yarn guide plate 401 out from the inner wall of the mounting groove 402 and move it to one end. Under the action of driving the yarn guide plate 401 to move to one end, the driving column 405 will squeeze the yarn guide plate 401 at the notch 420 and deformation hole 421, and cause the yarn guide plate 401 to deform until the driving column 405 disengages from the inner wall of the first through hole 404. At this time, the yarn guide plate 401 can be replaced. The new yarn guide plate 401 is first passed through the notch 420 so that the driving column 405 is located on the inner wall of the first through hole 404 in the middle of the new yarn guide plate 401. Then the yarn guide plate 401 is moved to the inner wall of the mounting groove 402 in the middle of the target mounting frame 305, thereby achieving the purpose of replacing the yarn guide plate 401 separately. When it is necessary to adjust the distance between multiple yarn guide plates 401 at equal intervals, the drive motor 311 is energized to drive the threaded rod 302 to rotate, causing the threaded rod 302 to drive the two drive frames 307 to move closer or further apart. The two threaded rods 302 stretch or contract the scissor-like telescopic structure formed by multiple hinged rods 306, causing the hinged rods 306 to drive multiple adjusting frames 303 to move closer or further apart at equal intervals. The adjusting frames 303, through the connecting column 304, drive multiple mounting frames 305 to move closer or further apart at equal intervals. This achieves the goal of driving multiple yarn guide plates 401 to move closer or further apart at equal intervals, thus achieving the purpose of adjusting the first yarn guide hole 403 at equal intervals. By setting the guide frame 309 and the guide column 310, when the threaded rod 302 rotates to drive the drive frame 307 to move, and the drive frame 307 cooperates with the hinged rod 306 to drive the adjusting frame 303 to move, the adjusting frame 303 will move more stably under the action of the guide frame 309 and the guide column 310.

[0024] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0025] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pultrusion yarn guiding device, characterized in that: include: A yarn guide frame (1) is fixedly connected to a fixed crossbeam (5) in the middle. A yarn guide assembly is provided at one end of the yarn guide frame (1), and the yarn guide assembly is used to guide the yarn while avoiding friction with the yarn. The yarn guide assembly includes multiple yarn guide plates (401) and a ventilation frame (413). The middle part of the yarn guide plate (401) is provided with a first yarn guide hole (403) for guiding the yarn. The ventilation frame (413) is provided with a second yarn guide hole (414) at the middle part corresponding to the position of the first yarn guide hole (403). The inner wall of the second yarn guide hole (414) is provided with multiple air outlets (415) for spraying air in a ring shape, so that the air outlets (415) blow the yarn up and avoid excessive friction between the yarn and the first yarn guide hole (403). An adjustment component two is provided at one end of the yarn guide frame (1), and the adjustment component two provides an installation position for the yarn guide assembly, while driving multiple yarn guide plates (401) to perform equidistant longitudinal adjustment. The adjustment component two includes a connecting frame (301), and multiple mounting frames (305) for mounting the yarn guide plates (401) and the ventilation frame (413) are movably provided on the connecting frame (301), and the multiple mounting frames (305) move at equal distances on the connecting frame (301). An adjustment component 1 is set at one end of the yarn guide frame (1), and the adjustment component 1 is used to support the adjustment component 2 and the yarn guide component, while the adjustment component 2 and the yarn guide component are adjusted laterally. Two adjacent yarn guide plates (401) are symmetrically arranged. The mounting bracket (305) has a mounting groove (402) at the top corresponding to the position of the yarn guide plate (401). The yarn guide plate (401) is movably connected to the inner wall of the mounting groove (402). The bottom of the yarn guide plate (401) and the inner wall of the mounting groove (402) are both T-shaped structures. A first through hole (404) is opened in the middle of the yarn guide plate (401). A driving column (405) is movably inserted into the inner wall of the first through hole (404). The top of the cross-section of the driving column (405) is an arc-shaped structure and the bottom is an elliptical structure. The yarn guide plate (401) has a first movable groove (406) in the middle corresponding to the first through hole (404). The first movable groove (406) is connected to the inner wall of the first through hole (404), and the first movable groove (406) extends through and to the bottom of one end of the yarn guide plate (401). A positioning frame (407) is movably connected to the inner wall of the first movable groove (406), and the positioning frame (407) is tightly attached to the surface of the drive column (405). The positioning frame (407) has an inverted U-shaped structure. The inner wall of the yarn guide plate (401) has a groove that connects to the first movable groove (404). The second movable groove (408) is connected to the inside of the movable groove (406). A return spring (409) is fixedly connected to the bottom of the inner wall of the second movable groove (408), and the return spring (409) is fixedly connected to the middle of the positioning frame (407). The mounting frame (305) has a third positioning hole (410) at the bottom corresponding to the position of the positioning frame (407), so that when the drive column (405) presses the positioning frame (407) downward, the bottom of the positioning frame (407) is inserted into the third positioning hole (410) to complete the positioning of the yarn guide plate (401) and the mounting frame (305).

2. The pultrusion yarn guiding device according to claim 1, characterized in that: A magnetic positioning protrusion (411) is fixedly embedded in the middle of one end of the yarn guide plate (401), and a magnetic positioning recess (412) is fixedly embedded in the middle of the other end of the yarn guide plate (401), so that two adjacent yarn guide plates (401) can be accurately positioned by the magnetic positioning protrusion (411) cooperating with the magnetic positioning recess (412). One end of the drive column (405) is fixedly connected to a threaded column (422), which is threadedly connected to the middle of one end of the connecting frame (301), and the other end of the drive column (405) moves through the middle of the other end of the connecting frame (301).

3. The pultrusion yarn guiding device according to claim 2, characterized in that: The ventilation frame (413) has a hollow structure in the middle, and the interior of the air outlet (415) is connected to the interior of the ventilation frame (413). The mounting bracket (305) has a second through hole (416) in the middle of the position corresponding to the ventilation frame (413), which is connected to the interior of the ventilation frame (413). The bottom of the inner wall of the second through hole (416) is threaded with a three-way hole (417). Corrugated expansion tubes are fixedly connected to the inner walls of two adjacent three-way holes (417). 418), and one end of the corrugated telescopic tube (418) is connected to the air pump. One end of the inner wall of the second yarn guide hole (414) is fitted with a rubber ring (419) so that the ventilation frame (413) can be protected by replacing the rubber ring (419). The inner wall of the second yarn guide hole (414) and the inner wall of the air outlet (415) are both inclined structures so that the gas sprayed from the air outlet (415) blows the yarn up and places it in the middle of the second yarn guide hole (414).

4. The pultrusion yarn guiding device according to claim 3, characterized in that: The yarn guide plate (401) has a notch (420) at one end corresponding to the position of the first through hole (404), and the notch (420) is connected to the interior of the first through hole (404). The yarn guide plate (401) has a deformation hole (421) at one end corresponding to the position of the notch (420), and the deformation hole (421) is located at the bottom of the notch (420) so that the driving column (405) can pass through the yarn guide plate (401) at the position of the notch (420) and the deformation hole (421) and disengage from the first through hole (404).

5. The pultrusion yarn guiding device according to claim 4, characterized in that: The connecting frame (301) has a hollow structure in the middle, and a threaded rod (302) is rotatably connected to the middle of the connecting frame (301) via a bearing. Multiple adjusting frames (303) are provided at the bottom of the connecting frame (301). The number of adjusting frames (303) is equal to the number of mounting frames (305), and the adjusting frames (303) are located at the bottom of the mounting frames (305). Connecting columns (304) are fixedly connected to the two ends of the adjusting frames (303) and mounting frames (305) at corresponding positions. Two hinged rods (306) are hinged to the middle of the top of the adjusting frame (303), and the corresponding ends of two adjacent hinged rods (306) are hinged to each other, so that the multiple hinged rods (306) form a scissor-type telescopic structure. A drive frame (307) is hinged to the middle of the top of each of the two adjusting frames (303), and the drive frame (307) is threaded onto the surface of the threaded rod (302). On the surface, a fixed frame (308) is movably connected to the top of the multiple hinge rods (306) located in the middle position, and the fixed frame (308) is fixedly connected to the middle of the connecting frame (301) so that the fixed frame (308) limits the middle position of the multiple hinge rods (306). The threaded rod (302) is rotatably connected to the middle of the fixed frame (308) through a bearing. The bottom of the adjusting frame (303) is fixedly connected to a guide frame (309), and a guide column (310) is movably inserted into the inner wall of the guide frame (309) so that the guide column (310) cooperates with the guide frame (309) to guide the movement of the adjusting frame (303). Adjacent guide frames (309) are staggered. One end of the threaded rod (302) is fixedly connected to a drive motor (311), and the drive motor (311) is fixedly connected to one end of the connecting frame (301) through a motor bracket.

6. The pultrusion yarn guiding device according to claim 5, characterized in that: The adjustment assembly includes a support frame (201) fixedly connected to the surface of the yarn guide frame (1) by bolts. A movable frame (202) is movably sleeved on the surface of the support frame (201). A guide post (310) is fixedly connected to the surface of the movable frame (202). An adjustment groove (203) is provided in the middle of the support frame (201). A first positioning post (204) is movably connected to the inner wall of the adjustment groove (203). The first positioning post (204) is a rectangular structure and movably extends through and to both ends of the movable frame (202). There are two first positioning posts (204), and the two first positioning posts (204) are located at the two ends of the middle of the movable frame (202). A second positioning ring (206) is movably sleeved on both ends of the surface of the first positioning post (204), and the surfaces of the two second positioning rings (206) are respectively... The first connecting rod (207) is hinged, and one end of each of the two first connecting rods (207) is hinged to a first hinge seat (208) at a corresponding position. One end of the first hinge seat (208) is hinged to a second connecting rod (209). The end of the second connecting rod (209) away from the first hinge seat (208) is hinged to a second hinge seat (210). A threaded sleeve (211) is fixedly connected to the middle of the second hinge seat (210), and a drive rod (212) is threadedly connected to the inner wall of the threaded sleeve (211). The drive rod (212) movably passes through and extends to the outside of the movable frame (202). A locking frame (213) is hinged to the end of the drive rod (212) away from the movable frame (202), and the end of the locking frame (213) corresponding to the position of the movable frame (202) is an eccentric structure. The surface of the locking frame (213) is in close contact with the surface of the drive rod (212).

7. The pultrusion yarn guiding device according to claim 6, characterized in that: The movable frame (202) has a second positioning hole (216) at the center corresponding to the position of the first positioning post (204), and the first positioning post (204) is movably inserted into the inner wall of the second positioning hole (216). A limit ring (214) is fixedly connected to one end surface of the first positioning post (204), and the surface of the limit ring (214) is tightly fitted with one end surface of the movable frame (202). The surfaces of the limit ring (214), the second positioning ring (206), the inner wall of the support frame (201), and the movable frame (202) are all roughened so that the position of the movable frame (202) can be fixed when the second positioning ring (206) is fitted with the support frame (201) and when the limit ring (214) is fitted with the movable frame (202). 04) A first positioning hole (215) is provided at one end away from the limiting ring (214), and a positioning rod (205) is movably inserted into the inner wall of both first positioning holes (215). A movable hole (217) is provided in the middle of the positioning rod (205), and the locking frame (213) is located inside the movable hole (217) to provide space for driving the locking frame (213) to rotate. There are two movable frames (202), and the two movable frames (202) are respectively fixedly connected to the two ends of the bottom of the connecting frame (301). A guide sleeve (218) is fixedly connected to one end of each of the two movable frames (202), and the driving rod (212) moves through the guide sleeve (218) so that the guide sleeve (218) supports and protects the driving rod (212).

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