Filament laying head pre-weight feeding device and its usage method

Abstract

The present invention provides a pre-tensioning device for a fiber placement head and its usage method, which relates to the technical field of composite material placement devices and includes: a fixed bracket, a driving motor, an active runner assembly, a guiding assembly, a spacer assembly, and a passive wheel assembly; a driving motor is arranged on one side of the fixed bracket, and an active runner assembly is arranged on the other side of the fixed bracket. The active runner assembly is in transmission connection with the driving motor. A guiding assembly is arranged above the active runner assembly through the fixed bracket, and a spacer assembly is arranged below the active runner assembly through the fixed bracket. A passive wheel assembly is provided in the middle of the fixed bracket, and the fiber bundle is clamped between the passive wheel assembly and the active runner assembly. The present invention also provides a usage method for the pre-tensioning device, enabling the fiber bundle to pass through the pre-tensioning device. It alleviates the technical problem in the prior art that the fiber bundle always remains in a tensioned state, affecting the placement accuracy, and achieves the technical effect of being able to reduce the tension of the prepreg transmitted backward to the re-feed mechanism.

Description

Technical Field

[0001] The present invention relates to the technical field of composite material laying devices, and particularly to a pre-weight feeding device for a fiber placement head and a using method thereof. Background Art

[0002] With the continuous growth of the demand for high-performance materials in high-tech fields such as aerospace, automotive manufacturing, and wind power generation, carbon fiber composite materials have received extensive attention due to their excellent mechanical properties and lightweight characteristics. The traditional manual laying method can no longer meet the requirements of modern industry for precision and efficiency. Therefore, automatic laying machines for composite materials have emerged. By precisely controlling the laying process of materials through a fiber placement machine, not only the production efficiency is improved, but also the consistency and reliability of components are ensured.

[0003] A fiber placement machine unwinds several prepregs from their respective reels, transports them to the fiber placement head through a prepreg yarn conveying system, and then lays the carbon fiber on the surface of the workpiece through a pressure roller.

[0004] The laying process of the fiber placement machine mainly includes: tow feeding, tow compressing, tow re-feeding, tow shearing, and tow laying. In the prior art, only a re-feeding structure is provided on the fiber placement head of the fiber placement machine. Between tow feeding and tow compressing, the tow is always in a straight and taut state, and the tension force in this taut state will affect the re-feeding accuracy during high-speed laying of the fiber placement machine, resulting in a lower laying flatness of the final tow. Summary of the Invention

[0005] The purpose of the present invention is to provide a pre-weight feeding device for a fiber placement head and a using method thereof, so as to alleviate the technical problem that the tension force in which the tow always remains in a taut state in the prior art affects the high-speed laying accuracy.

[0006] The present invention provides a pre-weight feeding device for a fiber placement head, including: a fixed bracket, a driving motor, an active runner assembly, a guiding assembly, a spacer assembly, and a passive wheel assembly;

[0007] A driving motor is arranged on one side of the fixed bracket, an active runner assembly is arranged on the other side of the fixed bracket, the active runner assembly is in transmission connection with the driving motor, a guiding assembly is arranged above the active runner assembly through the fixed bracket, a spacer assembly is arranged below the active runner assembly through the fixed bracket, a passive wheel assembly is arranged in the middle of the fixed bracket, and the tow is clamped between the passive wheel assembly and the active runner assembly.

[0008] Furthermore, the fixed bracket includes a left fixed bracket, a right fixed bracket, an upper bracket, and a lower bracket;

[0009] The upper bracket is in the shape of a door. One end of the upper bracket is connected to the left fixing bracket by bolts, and the other end of the upper bracket is connected to the right fixing bracket by bolts. The upper bracket is vertically connected to two parallel lower brackets. A passive wheel assembly is fixedly connected between the two parallel lower brackets. The right fixing bracket is fixedly connected to the active runner assembly. The upper bracket is fixedly connected to the guiding assembly. The bottom end of the lower bracket is fixedly connected to the spacer assembly.

[0010] Further, the active runner assembly includes a pulley bracket, a first rotating shaft, a transmission wheel, a coupling, a second rotating shaft, an active runner bracket, a rotating gear, and an active runner;

[0011] The pulley bracket is fixedly connected to the end of the right fixing bracket. The first rotating shaft is passed through the pulley bracket. The transmission wheel is sleeved on the first rotating shaft. The transmission wheel is in transmission connection with the driving motor. One end of the first rotating shaft away from the right fixing bracket is rotationally connected to the second rotating shaft through a coupling. The second rotating shaft is passed through the active runner bracket. The active runner bracket is fixedly connected to the passive wheel assembly. A rotating gear is sleeved in the middle of the second rotating shaft. The outer peripheral surface of the rotating gear is clamped with the inner peripheral surface of the active runner, so that the rotating gear drives the active runner to rotate. The active runner is arranged opposite to the passive wheel assembly.

[0012] Further, an output wheel is arranged on the output shaft of the driving motor. The output wheel is in transmission connection with the transmission wheel through a synchronous belt.

[0013] Further, the passive wheel assembly includes an outer bracket, a cylinder bracket, a cylinder, a telescopic rod, a passive wheel bracket, and a passive wheel;

[0014] The outer bracket is in the shape of a door. The surface of the outer bracket is fixedly connected to the active runner assembly. A plurality of juxtaposed cylinder brackets are arranged inside the outer bracket. One end of each cylinder bracket is provided with a cylinder. A through hole is opened on the outer surface of each cylinder bracket. A telescopic rod is arranged in the through hole. The telescopic rod passes through the through hole and is fixedly connected to the passive wheel bracket. The end of the passive wheel bracket away from the cylinder bracket is fixedly connected to the passive wheel. The passive wheel is arranged opposite to the active runner assembly.

[0015] Further, the guiding assembly includes a guiding bracket, a partition, a first fixing shaft, and a first sliding roller;

[0016] The top end of the upper bracket is fixedly connected to the guiding bracket. A plurality of partitions are arranged on the guiding bracket. A sliding groove is formed between two adjacent partitions. A first fixing shaft is arranged on the guiding bracket. A first sliding roller corresponding to the number of sliding grooves is sleeved on the first fixing shaft.

[0017] Further, the spacer assembly includes a second fixing shaft, a spacer plate, and a second sliding roller;

[0018] A second fixing shaft is fixedly connected between the ends of the two lower brackets. A plurality of spacer plates are evenly spaced on the second fixing shaft. Concentric holes are opened on the spacer plates. A second sliding roller is inserted into the concentric holes.

[0019] Further, the drive motor is fixed to the body of the fiber placement machine by bolts.

[0020] Further, the fixing bracket is made of aluminum alloy, titanium alloy or glass fiber reinforced plastic.

[0021] The present invention also provides a method for using a pre-weight feeding device of a fiber placement head, including the following steps:

[0022] Step 1: Fix the fixing bracket between the steering component and the re-feeding component of the fiber placement machine by bolts, and separate the fiber bundle transmitted from the steering component through the guiding component to obtain a separated fiber bundle;

[0023] Step 2: Drive the active runner assembly to rotate by the drive motor and control the expansion and contraction of the passive wheel assembly, so that the separated fiber bundle can be clamped between the passive wheel assembly and the active runner assembly, and the separated fiber bundle is driven to move downward by the clamping force to obtain a clamped fiber bundle;

[0024] Step 3: Keep the clamped fiber bundle divided by the spacer assembly and transmit it to the re-feeding component for re-feeding to complete the pre-weight feeding of the fiber placement head.

[0025] Beneficial effects:

[0026] The present invention provides a pre-weight feeding device for a fiber placement head, including: a drive motor is arranged on one side of the fixing bracket, and an active runner assembly is arranged on the other side of the fixing bracket. The active runner assembly is in transmission connection with the drive motor. By setting the drive motor to provide power for the active runner assembly, the fiber bundle can be clamped and transmitted downward;

[0027] The guiding component is arranged above the active runner assembly through the fixing bracket, and the spacer assembly is arranged below the active runner assembly through the fixing bracket. Through the guiding component and the spacer assembly, each fiber bundle can be separated from each other to avoid interference between the fiber bundles;

[0028] The passive wheel assembly is arranged in the middle of the fixing bracket. By clamping the fiber bundle between the passive wheel assembly and the active runner assembly, it is possible to control each fiber bundle separately while reducing the tension of the fiber bundle.

[0029] A pre-weight feeding device of the present invention is installed below the steering device, which can bear the tension of the prepreg during the laying process, reduce the tension of the prepreg transmitted backward to the re-feeding mechanism during the fiber placement process, reduce the laying quality problems caused by unstable tension during the laying process, and ensure the laying flatness during the laying process. Description of the Drawings

[0030] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0031] Figure 1 Structural schematic diagram of the pre-weight feeding device of the fiber placement head provided by the embodiment of the present invention;

[0032] Figure 2 Structural schematic diagram of the active runner assembly in the pre-weight feeding device of the fiber placement head provided by the embodiment of the present invention;

[0033] Figure 3 Structural schematic diagram of the passive wheel assembly in the pre-weight feeding device of the fiber placement head provided by the embodiment of the present invention;

[0034] Figure 4 Structural schematic diagram of a single cylinder in the passive wheel assembly of the pre-weight feeding device of the fiber placement head provided by the embodiment of the present invention;

[0035] Figure 5 Side view of the pre-weight feeding device of the fiber placement head provided by the embodiment of the present invention;

[0036] Figure 6 Flowchart of the usage method of the pre-weight feeding device of the fiber placement head provided by the embodiment of the present invention;

[0037] Figure 7 Schematic diagram of the installation position of the pre-weight feeding device of the fiber placement head on the fiber placement machine provided by the embodiment of the present invention.

[0038] Icon: 100 - Fixed bracket; 101 - Left fixed bracket; 102 - Right fixed bracket; 103 - Upper bracket; 104 - Lower bracket;

[0039] 200 - Driving motor; 201 - Output wheel; 202 - Synchronous belt;

[0040] 300 - Active runner assembly; 301 - Belt wheel bracket; 302 - First rotating shaft; 303 - Transmission wheel; 304 - Coupling; 305 - Second rotating shaft; 306 - Active runner frame; 307 - Rotating gear; 308 - Active runner;

[0041] 400 - Guiding assembly; 401 - Guiding frame; 402 - Partition; 403 - First fixed shaft; 404 - First sliding roller;

[0042] 500 - Spacer assembly; 501 - Second fixed shaft; 502 - Spacer plate; 503 - Second sliding roller;

[0043] 600 - Driven wheel assembly; 601 - Outer bracket; 602 - Cylinder bracket; 603 - Cylinder; 604 - Telescopic rod; 605 - Driven wheel bracket; 606 - Driven wheel. Detailed implementation manners

[0044] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Usually, the components of the embodiments of the present invention described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0045] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed present invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0046] It should be noted that like reference numerals and letters denote like items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0047] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the present invention is usually placed during use. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive distinction and cannot be construed as indicating or implying relative importance.

[0048] In addition, the terms "horizontal", "vertical", "hanging", etc. do not mean that the components are required to be absolutely horizontal or hanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0049] In the description of the present invention, it should also be noted that, unless otherwise clearly specified and limited, the terms "arranged", "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0050] The following will describe in detail some embodiments of the present invention with reference to the accompanying drawings. Without conflict, the embodiments described below and the features in the embodiments can be combined with each other.

[0051] As Figure 1 shown, the present invention provides a wire laying head pre-weight feeding device, including: a fixed bracket 100, a driving motor 200, a driving runner assembly 300, a guiding assembly 400, a spacer assembly 500, and a driven wheel assembly 600;

[0052] A driving motor 200 is arranged on one side of the fixed bracket 100, a driving runner assembly 300 is arranged on the other side of the fixed bracket 100, the driving runner assembly 300 is in transmission connection with the driving motor 200, a guiding assembly 400 is arranged above the driving runner assembly 300 through the fixed bracket 100, a spacer assembly 500 is arranged below the driving runner assembly 300 through the fixed bracket 100, a driven wheel assembly 600 is arranged in the middle of the fixed bracket 100, and the wire bundle is clamped between the driven wheel assembly 600 and the driving runner assembly 300.

[0053] Specifically, as Figure 5As shown in the figure, the drive motor 200 is fixed to the filament winding machine body by bolts, while the fixing bracket 100 is convex and is fixed to the position between the steering component and the refeeding component of the filament winding machine body by bolts; the fixing bracket 100 extends outwardly with a driving runner assembly 300, and the driving runner assembly 300 realizes power transmission by means of a synchronous belt or a chain using the drive motor 200, so that the filament bundle can be transmitted downward. A guiding component 400 is fixedly connected to the top end of the fixing bracket 100 by bolts. The guiding component 400 is located above the driving runner assembly 300, so that after passing through the guiding component 400, the filament bundle can be clamped between the driving runner assembly 300 and the driven wheel assembly 600. The setting of the guiding component 400 can separate each filament bundle from each other to avoid interference between the filament bundles. The bottom end of the fixing bracket 100 is designed in an arc shape, and the arc length reaches below the driving runner assembly 300, and can receive the clamped filament bundle for transportation to the refeeding component. A driven wheel assembly 600 is provided at the central position of the fixing bracket 100. The driven wheel assembly 600 is close to the driving runner assembly 300, so that the filament bundle is clamped between the driven wheel assembly 600 and the driving runner assembly 300, and the distance between the driven wheel assembly 600 and the driving runner assembly 300 can be controlled separately to control each filament bundle individually.

[0054] In an embodiment of the present invention, the fixing bracket 100 includes a left fixing frame 101, a right fixing frame 102, an upper bracket 103 and a lower bracket 104;

[0055] The upper bracket 103 is in a door shape. One end of the upper bracket 103 is connected to the left fixing frame 101 by bolts, and the other end of the upper bracket 103 is connected to the right fixing frame 102 by bolts. The upper bracket 103 is vertically connected to two parallel lower brackets 104. The driven wheel assembly 600 is fixedly connected between the two parallel lower brackets 104. The right fixing frame 102 is fixedly connected to the driving runner assembly 300. The upper bracket 103 is fixedly connected to the guiding component 400. The bottom end of the lower bracket 104 is fixedly connected to the spacer assembly 500.

[0056] Specifically, as Figure 1 shown, the fixing bracket 100 is bolted to the left fixing frame 101 and the right fixing frame 102 at both ends through the door-shaped upper bracket 103. Two parallel lower brackets 104 are vertically arranged downward at the bottom end of the upper bracket 103. A space is formed in the middle of the two parallel lower brackets 104 to fixedly connect the driven wheel assembly 600. The front end of the right fixing frame 102 is fixed with the driving runner assembly 300. A gap for clamping the filament bundle is left between the driving runner assembly 300 and the driven wheel assembly 600 which are close to each other; the top end of the upper bracket 103 is fixed with the guiding component 400, and the bottom ends of the two lower brackets 104 are fixedly connected with the spacer assembly 500.

[0057] In an embodiment of the present invention, the active runner assembly 300 includes a pulley bracket 301, a first rotating shaft 302, a transmission pulley 303, a coupling 304, a second rotating shaft 305, an active runner frame 306, a rotating gear 307, and an active runner 308;

[0058] The pulley bracket 301 is fixedly connected to the right fixed bracket 102. The first rotating shaft 302 is passed through the pulley bracket 301. The transmission pulley 303 is sleeved on the first rotating shaft 302. The transmission pulley 303 is in transmission connection with the driving motor 200. One end of the first rotating shaft 302 away from the right fixed bracket 102 is rotationally connected to a second rotating shaft 305 through a coupling 304. The second rotating shaft 305 is passed through the active runner frame 306. The active runner frame 306 is fixedly connected to the passive wheel assembly 600. A rotating gear 307 is sleeved in the middle of the second rotating shaft 305. The outer peripheral surface of the rotating gear 307 is clamped with the inner peripheral surface of the active runner 308, so that the rotating gear 307 drives the active runner 308 to rotate. The active runner 308 is disposed opposite to the passive wheel assembly 600. An output wheel 201 is provided on the output shaft of the driving motor 200. The output wheel 201 is in transmission connection with the transmission pulley 303 through a synchronous belt 202.

[0059] Specifically, as Figure 2 shown, the pulley bracket 301 is in a right-angled shape. One end is fixedly connected to the end of the right fixed bracket 102, and the other end is provided with a hole and a first rotating shaft 302 is inserted into the hole. The transmission pulley 303 is sleeved on the first rotating shaft 302. The transmission pulley 303 is in transmission connection with the output wheel 201 provided on the output shaft of the driving motor 200 through a synchronous belt 202, so that the transmission pulley 303 rotates and drives the first rotating shaft 302 to rotate. Since the first rotating shaft 302 is connected to the second rotating shaft 305 through a coupling 304, the second rotating shaft 305 also rotates accordingly. The second rotating shaft 305 is passed through the active runner frame 306. The active runner frame 306 is fixedly connected to the passive wheel assembly 600 through a threaded hole. The rotating gear 307 on the second rotating shaft 305 rotates accordingly and drives the actively engaged runner 308 on the surface to rotate. Thus, the purpose that the active runner assembly 300 can clamp the wire bundle with the passive wheel assembly 600 and rotate downward to drive the wire bundle to move downward is achieved.

[0060] It should be noted that between the transmission pulley 303 and the output wheel 201, a synchronous belt 202 can be used, or a chain or other transmission structures can be used to drive the transmission pulley 303 to rotate.

[0061] It should be noted that between the rotating gear 307 and the active runner 308, there can be a clamping connection, a ratchet pawl, or meshing, so that the active runner 308 can be driven to rotate by the rotating gear 307.

[0062] In an embodiment of the present invention, the passive wheel assembly 600 includes an outer bracket 601, a cylinder bracket 602, a cylinder 603, a telescopic rod 604, a passive wheel bracket 605, and a passive wheel 606;

[0063] The outer bracket 601 is in the shape of a door. The surface of the outer bracket 601 is fixedly connected to the active runner assembly 300. A plurality of the cylinder brackets 602 arranged in parallel are provided inside the outer bracket 601. One end of each cylinder bracket 602 is provided with a cylinder 603. Through holes are formed on the outer surface of each cylinder bracket 602. A telescopic rod 604 is arranged inside the through holes. The telescopic rod 604 passes through the through holes and is fixedly connected to a passive wheel bracket 605. One end of the passive wheel bracket 605 away from the cylinder bracket 602 is fixedly connected to a passive wheel 606. The passive wheel 606 is arranged opposite to the active runner assembly 300.

[0064] Specifically, as Figure 3 , Figure 4 shown, the outer bracket 601 is in the shape of a door. The top end of the outer bracket 601 is fixedly connected to the upper bracket 103 and fixed between two parallel lower brackets 104. The front surface of the outer bracket 601 is fixedly connected to the active runner assembly 300. The cylinder bracket 602 is fixedly connected inside the door-shaped outer bracket 601. One end of the cylinder bracket 602 is provided with 1 - 3 cylinders 603. Through holes are formed on the cylinder bracket 602. The telescopic rod 604 is inserted into the through holes such that the telescopic rod is parallel to the cylinder 603. The telescopic rod 604 passes through the through holes and is fixedly connected to a passive wheel bracket 605. One end of the passive wheel bracket 605 away from the cylinder bracket 602 is fixedly connected to a passive wheel 606. When the cylinder 603 exerts a forward pushing force, the passive wheel bracket 605 can slide forward through the telescopic rod 604. Further, the passive wheel 606 is driven to move forward. At this time, the active runner 308 is located at the front end of the passive wheel 606. In this way, the distance between the passive wheel 606 and the active runner 308 is controlled. When a certain tow is to be fed, the corresponding cylinder 603 will drive the passive wheel 606 to extend. The passive wheel 606 extends and clamps the tow with the active runner 308, and drives the tow to move downward.

[0065] It should be noted that the cylinder bracket 602 can be set according to the actual number of tows to be clamped. As Figure 4 shown, when there are four tows, four cylinder brackets 602 and passive wheels 606 are provided.

[0066] In an embodiment of the present invention, the guiding assembly 400 includes a guiding frame 401, a partition 402, a first fixed shaft 403, and a first sliding roller 404;

[0067] The top end of the upper support bracket 103 is fixedly connected with a guiding frame 401. A number of partition plates 402 are arranged on the guiding frame 401. A sliding groove is formed between two adjacent partition plates 402. A first fixed shaft 403 is provided on the guiding frame 401, and a number of first sliding rollers 404 corresponding to the number of sliding grooves are sleeved on the first fixed shaft 403.

[0068] Specifically, as Figure 1 shown, the top end of the upper support bracket 103 is fixedly connected with a guiding frame 401. A number of trapezoidal partition plates 402 are arranged on the guiding frame 401, so that a sliding groove is formed between two adjacent partition plates 402. The number of sliding grooves is the same as the number of tows actually clamped, separating the tow after turning and smoothly entering between the lower driving roller 308 and the driven wheel 606 below. A first fixed shaft 403 is provided on the guiding frame 401, and a first sliding roller 404 is fixedly sleeved on the first fixed shaft 403 for each sliding groove, preventing the tow from slipping out of the guiding assembly 400 during the downward process of the tow and limiting the position of the tow.

[0069] The spacer assembly 500 includes a second fixed shaft 501, a spacer plate 502 and a second sliding roller 503;

[0070] A second fixed shaft 501 is fixedly connected between the ends of the two lower support brackets 104. A number of spacer plates 502 are evenly spaced on the second fixed shaft 501. Concentric holes are formed in the spacer plates 502, and second sliding rollers 503 are inserted into the concentric holes.

[0071] Specifically, the ends of the two lower support brackets 104 are in a hook shape, so that the position of the second fixed shaft 501 can be parallel to the guiding frame 401 to receive the tow after clamping. A second fixed shaft 501 is fixedly connected between the ends of the two lower support brackets 104. Spacer plates 502 are evenly spaced on the second fixed shaft 501. The number of spacer plates 502 is the same as the number of tows actually clamped. Concentric holes are formed in the spacer plates 502, and second sliding rollers 503 are inserted into the concentric holes, preventing the tow from slipping out of the spacer assembly 500 during the downward process of the tow and limiting the position of the tow.

[0072] In the embodiment of the present invention, the driving motor 200 is fixed to the filament winding machine body by bolts. The material of the fixing bracket 100 is aluminum alloy, titanium alloy or glass fiber reinforced plastic.

[0073] Specifically, the driving motor 200 is fixed to the filament winding machine body by bolts and can transmit power through the synchronous belt 202, avoiding adding an extra motor and increasing the volume and weight of the filament winding machine.

[0074] The material of the fixed bracket 100 is made of other lightweight materials such as aluminum alloy, titanium alloy or glass fiber reinforced plastic. Using lightweight materials for the fixed bracket 100 can reduce the weight of the overall device and improve the mobility and flexibility of the equipment.

[0075] The present invention also provides a method of using the wire laying head pre-weight feeding device, as Figure 6 , Figure 7 shown, including the following steps:

[0076] Step 1: Fix the fixed bracket 100 between the steering component and the re-feeding component of the wire laying machine by bolts. The wire bundle transmitted from the steering component is separated by the guiding component 400 to obtain the separated wire bundle;

[0077] Specifically, it is necessary to position the fixed bracket 100 between the steering component and the re-feeding component of the wire laying machine to ensure that the wire bundle can pass through smoothly. Use appropriate bolts to fix the fixed bracket 100 on the wire laying machine through the preset holes; calibrate the fixed bracket 100 to ensure that its contact surface with the wire laying machine is horizontal to reduce the wire bundle deviation caused by the unevenness of the bracket. The wire bundle transmitted from the steering component passes through the sliding groove formed by the guiding component 400 to separate the wire bundle and obtain the separated wire bundle;

[0078] Step 2: Drive the active runner assembly 300 to rotate by the driving motor 200 and control the telescoping of the passive wheel assembly 600, so that the passive wheel assembly 600 can clamp the separated wire bundle with the active runner assembly 300, and drive the separated wire bundle to move downward by using the clamping force to obtain the clamped wire bundle;

[0079] Specifically, according to the material and thickness of the wire bundle, set the speed and torque parameters of the driving motor 200, start the driving motor 200, drive the active runner assembly 300 to rotate by the driving motor 200, and at the same time control the telescoping of the passive wheel assembly 600, so that the active runner 308 and the passive wheel 606 can clamp the wire bundle to adapt to the width and tension requirements of different wire bundles;

[0080] Step 3: Keep the clamped wire bundle divided by the spacer assembly 500 and transmit it to the re-feeding component for re-feeding to complete the pre-weight feeding of the wire laying head.

[0081] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A pre-weight feeding device for a fiber placement head, characterized in that, Including: A fixed bracket (100), a driving motor (200), an active runner assembly (300), a guiding assembly (400), a spacer assembly (500) and a passive wheel assembly (600); On one side of the fixed bracket (100), the driving motor (200) is arranged. On the other side of the fixed bracket (100), the active runner assembly (300) is arranged. The active runner assembly (300) is in transmission connection with the driving motor (200). Above the active runner assembly (300), the guiding assembly (400) is arranged through the fixed bracket (100). Below the active runner assembly (300), the spacer assembly (500) is arranged through the fixed bracket (100). In the middle of the fixed bracket (100), the passive wheel assembly (600) is provided. The tow is clamped between the passive wheel assembly (600) and the active runner assembly (300); The fixed bracket (100) includes a left fixed bracket (101), a right fixed bracket (102), an upper bracket (103) and a lower bracket (104); The upper bracket (103) is in a door shape. One end of the upper bracket (103) is connected to the left fixed bracket (101) by bolts. The other end of the upper bracket (103) is connected to the right fixed bracket (102) by bolts. The upper bracket (103) is vertically connected to the two parallel lower brackets (104). Between the two parallel lower brackets (104), the passive wheel assembly (600) is fixedly connected. The right fixed bracket (102) is fixedly connected to the active runner assembly (300). The upper bracket (103) is fixedly connected to the guiding assembly (400). The bottom end of the lower bracket (104) is fixedly connected to the spacer assembly (500); The active runner assembly (300) includes a pulley bracket (301), a first rotating shaft (302), a transmission wheel (303), a coupling (304), a second rotating shaft (305), an active runner bracket (306), a rotating gear (307) and an active runner (308); The pulley bracket (301) is fixedly connected to the end of the right fixing bracket (102). The first rotating shaft (302) passes through the pulley bracket (301). The driving wheel (303) is sleeved on the first rotating shaft (302). The driving wheel (303) is in transmission connection with the driving motor (200). One end of the first rotating shaft (302) away from the right fixing bracket (102) is rotatably connected to the second rotating shaft (305) through the coupling (304). The second rotating shaft (305) passes through the driving runner bracket (306). The driving runner bracket (306) is fixedly connected to the driven wheel assembly (600). The middle of the second rotating shaft (305) is sleeved with the rotating gear (307). The outer peripheral surface of the rotating gear (307) is clamped with the inner peripheral surface of the driving runner (308), so that the rotating gear (307) drives the driving runner (308) to rotate. The driving runner (308) is arranged opposite to the driven wheel assembly (600). The driven wheel assembly (600) includes an outer bracket (601), a cylinder bracket (602), a cylinder (603), a telescopic rod (604), a driven wheel bracket (605) and a driven wheel (606). The outer bracket (601) is in a door shape. The surface of the outer bracket (601) is fixedly connected to the driving runner assembly (300). A plurality of juxtaposed cylinder brackets (602) are arranged inside the outer bracket (601). One end of each cylinder bracket (602) is provided with the cylinder (603). A through hole is formed on the outer surface of each cylinder bracket (602). The telescopic rod (604) is arranged in the through hole. The telescopic rod (604) passes through the through hole and is fixedly connected to the driven wheel bracket (605). One end of the driven wheel bracket (605) away from the cylinder bracket (602) is fixedly connected to the driven wheel (606). The driven wheel (606) is arranged opposite to the driving runner assembly (300).

2. The wire placement head pre-weight feeding device according to claim 1, wherein, An output wheel (201) is arranged on the output shaft of the driving motor (200). The output wheel (201) is in transmission connection with the driving wheel (303) through a synchronous belt (202).

3. The wire laying head pre-weight feeding device according to claim 1, characterized in that, The guiding component (400) includes a guiding bracket (401), a partition board (402), a first fixed shaft (403) and a first sliding roller (404). The guiding bracket (401) is fixedly connected to the top end of the upper bracket (103). A plurality of partition boards (402) are arranged on the guiding bracket (401). A sliding groove is formed between two adjacent partition boards (402). The first fixed shaft (403) is arranged on the guiding bracket (401). The first sliding roller (404) corresponding to the number of the sliding grooves is sleeved on the first fixed shaft (403).

4. The wire laying head pre-weight feeding device according to claim 1, wherein, The spacer component (500) includes a second fixed shaft (501), a spacer board (502) and a second sliding roller (503). A second fixed shaft (501) is fixedly connected between the ends of the two lower brackets (104). A plurality of spacer plates (502) are evenly spaced on the second fixed shaft (501). Concentric holes are formed in the spacer plates (502), and a second sliding roller (503) is inserted into the concentric holes.

5. The fiber placement head pre-rewinding device according to claim 1, wherein The drive motor (200) is fixed to the filament winding machine body by bolts.

6. The wire placement head pre-weight feeding device according to claim 1, wherein, The fixed bracket (100) is made of aluminum alloy, titanium alloy or glass fiber reinforced plastic.

7. A method for using a pre-weight feeding device of a fiber placement head according to any one of claims 1-6, characterized in that, It includes the following steps: Step 1: Fix the fixed bracket (100) between the filament winding machine steering assembly and the refeeding assembly by bolts. The filament bundle transmitted from the steering assembly is separated by the guiding assembly (400) to obtain a separated filament bundle. Step 2: Drive the active runner assembly (300) to rotate by the drive motor (200) and control the telescoping of the passive wheel assembly (600), so that the passive wheel assembly (600) can clamp the separated filament bundle with the active runner assembly (300), and drive the separated filament bundle to move downward by using the clamping force to obtain a clamped filament bundle. Step 3: Keep the clamped filament bundle divided by the spacer assembly (500) and transmit it to the refeeding assembly for refeeding to complete the pre-reeeding of the filament winding head.

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