A towpreg device for a composite material

Abstract

The utility model discloses a kind of tow guiding mechanism of composite material laying equipment, it is related to composite material laying forming technical field.The utility model includes guide box, two rack and wire harness roll, the side portion inner wall of guide box is equipped with fixed plate.When using, two U-shaped blocks can be moved simultaneously by screw rod, arc plate, extruding plate, trapezoidal block and return spring, two U-shaped blocks will be respectively positioned or cancel positioning under the action of rectangular bar, to fix or release fixing to two guide rollers simultaneously, avoid to increase the labor intensity of staff by repeated operation, when fixed, eccentric moving of guide roller can be made by motor, the length of tow in guide box will be made larger by eccentric moving of guide roller, and then the tension of tow can be regulated by one motor and two guide rollers, to reduce the number of subsequent maintenance projects, reduce the labor intensity of staff.

Description

Technical Field

[0001] This utility model relates to the field of composite material layup and molding technology, specifically to a filament guide mechanism for composite material filament laying equipment. Background Technology

[0002] Composite materials have advantages such as high specific strength, high specific modulus, fatigue resistance, good vibration damping, and good processability. These advantages are of great value to the performance of aircraft and have been widely used in the aerospace industry. At the same time, the use of composite materials in other industries is also increasing day by day. In the laying of composite materials, a guiding mechanism is used to guide the composite material filament bundles.

[0003] The prior art patent CN222360656U discloses a filament guiding device for composite material filament laying equipment. This device, consisting of a filament bundle, guide frame, fixing frame, threaded hole, guiding mechanism, wire bundle roll, placement frame, fixing bolt, first mounting plate, fixing plate, slot, guide roller, mounting frame, cylinder, second mounting plate, and threaded slot, can adjust the tension of the filament bundle. However, in actual use, the guide roller will wear out after prolonged use and needs to be replaced promptly to avoid affecting the guiding accuracy. But since the guide roller is mounted on three separate mounting frames, maintenance and replacement require sequential disassembly and replacement. Simultaneously, the three associated cylinders also need sequential maintenance, increasing the labor intensity of workers, raising maintenance costs, and making it inconvenient to use. Utility Model Content

[0004] To address the aforementioned problems, this utility model provides a filament guide mechanism for a composite material filament laying equipment. This solves the problem that the guide rollers are installed on three mounting frames, requiring sequential disassembly and replacement during maintenance. Simultaneously, the three matching cylinders also need sequential maintenance, which not only increases the labor intensity of workers but also raises maintenance costs and makes the equipment inconvenient to use.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a filament guide mechanism for a composite material filament laying equipment, comprising a guide box, two placement racks and a filament roll, wherein a fixing plate is installed on the inner side wall of the guide box, and guide holes are provided at the bottom of the guide box and the top of the fixing plate, and a rotation tension adjustment mechanism is provided on the guide box. The rotational tension adjustment mechanism includes a motor mounted on the side of the guide box. A movable hole is provided on the side of the guide box, and a movable rod is rotatably mounted on the movable hole. One end of the movable rod is mounted on the output shaft of the motor, and the other end of the movable rod is mounted on a circular block. Two grooves are formed on the outer periphery of the circular block, and rectangular rods are mounted on the bottom inner walls of both grooves. A U-shaped block is movably fitted onto each of the two rectangular rods. Fixed rods are mounted on the sides of each of the two U-shaped blocks, and guide rollers are rotatably mounted on one end of each of the two fixed rods. A U-shaped block is positioned above each of the two U-shaped blocks, and an extrusion assembly is provided on the circular block to allow the two U-shaped blocks to move simultaneously.

[0006] Preferably, the extrusion assembly includes two movable cavities formed on the circular block, each containing a trapezoidal block slidably mounted. The inner side walls of both movable cavities have clearance holes. The sides of the two U-shaped blocks pass through the clearance holes and are respectively mounted on the sides of the two trapezoidal blocks. The outer circumferential wall of the circular block has a threaded groove, on which a screw is threadedly mounted. An arc-shaped plate is rotatably mounted on the non-threaded portion of the screw. Two extrusion plates are mounted on the bottom of the arc-shaped plate. The outer circumferential wall of the circular block has two insertion holes adapted to the extrusion plates. The bottoms of the two extrusion plates abut against the inclined sides of the two trapezoidal blocks. Each side of the two trapezoidal blocks is provided with an elastic unit.

[0007] Preferably, the elastic unit includes a return spring installed on the side of the trapezoidal block, and the other end of the return spring is installed on the inner wall of the side of the movable cavity.

[0008] Preferably, the top of the guide box has two placement slots that are adapted to the placement rack, and the sides of the two placement racks are each equipped with a fixing block. Two telescopic rods are respectively installed on the two mutually distant sides of the guide box. The ends of each pair of adapted telescopic rods are jointly equipped with a movable plate. The sides of the two movable plates are each equipped with a triangular block and an elastic mechanism.

[0009] Preferably, the elastic mechanism includes two tension springs installed on the side of the movable plate, and the other ends of the two tension springs are installed on the inner side wall of the guide box.

[0010] Preferably, both guide holes are arc-shaped, and multiple ball bearings are movably installed on the inner side walls of both guide holes.

[0011] The beneficial effects of this utility model are as follows: This invention utilizes a screw, threaded groove, arc-shaped plate, extrusion plate, and return spring to enable the simultaneous movement of two trapezoidal blocks. This movement causes two U-shaped blocks to move simultaneously. The movement of the U-shaped blocks, under the action of a rectangular rod, limits or releases the limits on two circular blocks, thereby simultaneously fixing or releasing the two guide rollers. This avoids repetitive operations and reduces the workload of workers. When fixed, the circular blocks can be eccentrically moved via a motor, movable rod, circular block, and rectangular rod. This eccentric movement of the circular blocks causes the guide rollers to move eccentrically via a fixed rod. This eccentric movement of the guide rollers increases the length of the wire bundle within the guide box. Furthermore, the tension of the wire bundle can be controlled using one motor and two guide rollers, thereby reducing the number of subsequent maintenance tasks and lowering the workload of workers.

[0012] This utility model, through the arrangement of telescopic rod, movable plate, triangular block, fixing block and tension spring, facilitates quick fixing or unfixing of the placement frame, thereby enabling rapid installation and fixing of wire harness rolls for easy subsequent replacement. The arc-shaped guide hole prevents the wire bundle from contacting the edge corner and causing damage. The ball bearings reduce friction and prevent excessive friction from damaging the wire bundle. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram from a first-view perspective of the present invention; Figure 2 This is a three-dimensional structural diagram from a second perspective in this utility model; Figure 3 This is a three-dimensional structural diagram of a partially cut section of the guide box in this utility model. Figure 4 yes Figure 3 Enlarged structural diagram at point A in the middle; Figure 5 This is a schematic diagram of a partial cross-sectional view of the circular block in this utility model; Figure 6 yes Figure 5 Enlarged structural diagram at point B; Figure 7 This is a side view of the guide box and fixing plate in this utility model, partially cut out.

[0014] Reference numerals: 1. Guide box; 2. Fixing plate; 3. Placement frame; 4. Wire harness roll; 5. Motor; 6. Movable rod; 7. Round block; 8. Rectangular rod; 9. U-shaped block; 10. Fixing rod; 11. Guide roller; 12. Screw; 13. Arc plate; 14. Extrusion plate; 15. U-shaped block; 16. Trapezoidal block; 17. Return spring; 18. Moving plate; 19. Triangular block; 20. Fixing block; 21. Tension spring; 22. Guide hole. Detailed Implementation

[0015] The present invention will be further described below with reference to specific embodiments. However, those skilled in the art should understand that the detailed description given here with reference to the accompanying drawings is for better explanation. The structure of the present invention may exceed the limited embodiments described herein. Some equivalent alternatives or common means will not be described in detail here, but they still fall within the protection scope of this application.

[0016] Figures 1 to 7 This is the preferred embodiment of the present invention, which is described below in conjunction with the appendix. Figure 1 ~Attached Figure 7 The present invention will be further described below.

[0017] A filament guiding mechanism for a composite material filament laying equipment includes a guide box 1, two placement frames 3, and a filament roll 4. It should be noted that, in this embodiment, the installation method of the two placement frames 3 and the filament roll 4 can refer to the technical content adopted in the filament guiding device of a composite material filament laying equipment disclosed in Chinese Patent No. CN222360656U, which will not be repeated here. A fixing plate 2 is installed on the inner side wall of the guide box 1, and guide holes 22 are opened at the bottom of the guide box 1 and the top of the fixing plate 2. A rotation tension adjustment mechanism is provided on the guide box 1. The rotational tension adjustment mechanism includes a motor 5 installed on the side of the guide box 1. The side of the guide box 1 has a movable hole, and a movable rod 6 is rotatably installed on the movable hole. One end of the movable rod 6 is installed on the output shaft of the motor 5, and the other end of the movable rod 6 is installed on a circular block 7. Two grooves are opened on the outer wall of the circular block 7. A rectangular rod 8 is installed on the bottom inner wall of each of the two grooves. A herringbone block 9 is movably sleeved on each of the two rectangular rods 8. A fixed rod 10 is installed on the side of each of the two herringbone blocks 9. A guide roller 11 is rotatably installed on one end of each of the two fixed rods 10. A U-shaped block 15 is set above each of the two herringbone blocks 9. An extrusion assembly is set on the circular block 7 to make the two U-shaped blocks 15 move simultaneously.

[0018] With the above structure, during use, firstly, two U-shaped blocks 9 are inserted into two rectangular rods 8 and brought into contact with the bottom inner wall of the groove. Then, the pressing component causes the two U-shaped blocks 15 to move simultaneously. The two U-shaped blocks 15 moving together will simultaneously contact or move away from the top of the two U-shaped blocks 9, thereby limiting or removing the limitation of the two U-shaped blocks 9, thus simultaneously fixing or releasing the two guide rollers 11, avoiding repetitive operations and increasing the labor intensity of the workers. When fixed, the motor 5 is started. The rotation of the motor 5 will cause the circular block 7 to rotate through the movable rod 6. The rotation of the circular block 7 will cause the U-shaped block 9 to move eccentrically through the rectangular rod 8. The eccentric movement of the U-shaped block 9 will cause the guide roller 11 to move eccentrically through the fixed rod 10. The eccentric movement of the guide roller 11 will compress the filament bundle. The compression of the filament bundle by the guide roller 11 will increase the length of the filament bundle in the guide box 1. Thus, the tension of the filament bundle can be adjusted by one motor 5 and two guide rollers 11, thereby reducing the number of subsequent maintenance items and reducing the labor intensity of the workers.

[0019] like Figure 3 , Figure 5 and Figure 6 As shown, the extrusion assembly includes two movable cavities formed on the circular block 7. Trapezoidal blocks 16 are slidably installed in each of the two movable cavities. The inner side walls of the two movable cavities are provided with clearance holes. The sides of two U-shaped blocks 15 pass through the two clearance holes and are respectively installed on the sides of the two trapezoidal blocks 16. The outer peripheral wall of the circular block 7 is provided with a threaded groove. A screw 12 is threadedly installed on the threaded groove. An arc plate 13 is rotatably installed on the non-threaded part of the screw 12. Two extrusion plates 14 are installed at the bottom of the arc plate 13. The outer peripheral wall of the circular block 7 is provided with two insertion holes that are adapted to the extrusion plates 14. The bottoms of the two extrusion plates 14 abut against the inclined sides of the two trapezoidal blocks 16 respectively. The sides of the two trapezoidal blocks 16 are provided with elastic units.

[0020] In this design, the screw 12, the arc plate 13, the extrusion plate 14 and the trapezoidal block 16 facilitate the simultaneous movement of the two U-shaped blocks 15.

[0021] Specifically, by moving the two U-shaped blocks 15, it is convenient to simultaneously block and limit the two loop-shaped blocks 9.

[0022] like Figure 6 As shown, the elastic unit includes a return spring 17 installed on the side of the trapezoidal block 16, and the other end of the return spring 17 is installed on the inner wall of the side of the movable cavity.

[0023] In this design, the reset spring 17 facilitates the reset of the trapezoidal block 16 when it is not compressed.

[0024] Specifically, by resetting the trapezoidal block 16, the U-shaped block 15 can be reset, thereby simultaneously releasing the limit of the two loop blocks 9.

[0025] like Figure 1 and Figure 4 As shown, the top of the guide box 1 has two placement slots that are adapted to the placement rack 3. The sides of the two placement racks 3 are each equipped with a fixing block 20. The two sides of the guide box 1 that are far apart from each other are each equipped with two telescopic rods. The ends of each pair of adapted telescopic rods are equipped with a movable plate 18. The sides of the two movable plates 18 are each equipped with a triangular block 19. The sides of the two movable plates 18 are each equipped with an elastic mechanism.

[0026] In this design, the telescopic rod, movable plate 18, triangular block 19 and fixed block 20 are used to facilitate the limiting of the placement rack 3.

[0027] Specifically, by limiting the placement frame 3, it is convenient to fix the wire harness roll 4.

[0028] like Figure 4 As shown, the elastic mechanism includes two tension springs 21 installed on the side of the movable plate 18, and the other end of each tension spring 21 is installed on the inner side wall of the guide box 1.

[0029] In this design, the tension spring 21 facilitates the rapid reset of the movable plate 18.

[0030] Specifically, the rapid reset of the movable plate 18 allows the triangular block 19 to be quickly reset, which facilitates the quick fixing or unfixing of the placement frame 3, thereby enabling the rapid installation and fixing of the wire harness roll 4 for easy replacement later.

[0031] like Figure 1 and Figure 7 As shown, both guide holes 22 are arc-shaped, and multiple ball bearings are movably installed on the inner side walls of both guide holes 22.

[0032] In this design, the ball bearings and guide holes 22 are designed in an arc shape to prevent the filament bundle from contacting the edge corners and causing damage. At the same time, friction is reduced to prevent excessive friction from damaging the filament bundle.

[0033] In summary: When using this utility model, firstly, insert two U-shaped blocks 9 onto two rectangular rods 8 and make them contact the bottom inner wall of the groove. Then, screw 12 into the threaded groove. At this time, the arc plate 13 gradually moves downward. The downward movement of the arc plate 13 causes the two pressing plates 14 to move downward. The downward movement of the pressing plates 14 will press the two trapezoidal blocks 16, causing them to move. The movement of the two trapezoidal blocks 16 will cause the two U-shaped blocks 15 to move. The movement of the two U-shaped blocks 15 will contact the top of the U-shaped blocks 9, thereby limiting the two U-shaped blocks 9 and simultaneously fixing the two guide rollers 11. When the guide rollers 11 are replaced, screw 12 out of the threaded groove. At this time, the arc plate 13 gradually moves upward. The upward movement of the arc plate 13 will cause the two pressing plates 14 to move upward. The upward movement of the two pressing plates 14 will release the pressure on the trapezoidal blocks 16. At this time, under the action of the return spring 17, the two trapezoidal blocks 16 will reset. The reset of the trapezoidal blocks 16 will cause the two U-shaped blocks 15 to reset. The two retaining blocks 9 are simultaneously released, thereby simultaneously fixing or unfixing the two guide rollers 11, avoiding repetitive operations and increasing the labor intensity of the workers. When fixed, one end of the filament bundle is passed through the two guide holes 22 in sequence, and then the motor 5 is started. The rotation of the motor 5 causes the movable rod 6 to rotate, which in turn causes the circular block 7 to rotate. The rotation of the circular block 7 causes the rectangular rod 8 to move eccentrically along the circular block 7. The eccentric movement of the rectangular rod 8 causes the retaining block 9 to move eccentrically, which in turn causes the fixed rod 10 to move eccentrically. The eccentric movement of the fixed rod 10 causes the guide roller 11 to move eccentrically, which in turn compresses the filament bundle. The compression of the filament bundle by the guide roller 11 increases the length of the filament bundle in the guide box 1. Thus, the tension of the filament bundle can be adjusted by one motor 5 and two guide rollers 11, thereby reducing the number of subsequent maintenance items and reducing the labor intensity of the workers.

[0034] In use, align the two placement racks 3 with the placement slots and press them down. When the side of the fixing block 20 contacts the inclined surface of the triangular block 19, the placement rack 3 will be forced to press the fixing block 20 against the triangular block 19. The triangular block 19 will move under the action of the moving plate 18 and the telescopic rod. At this time, the fixing block 20 continues to move downward. When the placement rack 3 contacts the bottom inner wall of the placement slot, the fixing block 20 will not contact the triangular block 19. At this time, the moving plate 18 will be reset under the action of the tension spring 21. The reset of the moving plate 18 will reset the triangular block 19. The reset of the triangular block 19 will block and limit the fixing block 20, thereby fixing the placement rack 3. When disassembling, press the two triangular blocks 19 to move them. The movement of the triangular blocks 19 will remove the limit on the fixing block 20, thereby quickly releasing the fixing of the placement rack 3, so as to quickly install and fix the wire harness roll 4, which is convenient for subsequent replacement.

[0035] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from its technical solution shall still fall within the protection scope of this utility model.

Claims

1. A filament guiding mechanism for a composite material filament laying device, comprising a guide box (1), two placement frames (3), and a filament roll (4), characterized in that, A fixing plate (2) is installed on the inner side wall of the guide box (1). Guide holes (22) are opened at the bottom of the guide box (1) and the top of the fixing plate (2). A rotation tension adjustment mechanism is provided on the guide box (1). The rotational tension adjustment mechanism includes a motor (5) installed on the side of the guide box (1). The side of the guide box (1) has a movable hole, and a movable rod (6) is rotatably installed on the movable hole. One end of the movable rod (6) is installed on the output shaft of the motor (5), and the other end of the movable rod (6) is installed with a round block (7). Two grooves are opened on the outer periphery of the round block (7). A rectangular rod (8) is installed on the bottom inner wall of each of the two grooves. A spiral block (9) is movably sleeved on each of the two rectangular rods (8). A fixed rod (10) is installed on the side of each of the two spiral blocks (9). A guide roller (11) is rotatably installed on one end of each of the two fixed rods (10). A U-shaped block (15) is provided above each of the two spiral blocks (9). An extrusion assembly is provided on the round block (7) to make the two U-shaped blocks (15) move simultaneously.

2. The fiber guide mechanism of a composite material fiber placement device according to claim 1, characterized in that, The extrusion assembly includes two movable cavities opened on the circular block (7). Trapezoidal blocks (16) are slidably installed in both movable cavities. The side inner walls of the two movable cavities are provided with clearance holes. The side parts of the two U-shaped blocks (15) pass through the two clearance holes and are respectively installed on the side parts of the two trapezoidal blocks (16). The outer peripheral wall of the circular block (7) is provided with a threaded groove. A screw (12) is threadedly installed on the threaded groove. An arc plate (13) is rotatably installed on the non-threaded part of the screw (12). Two extrusion plates (14) are installed at the bottom of the arc plate (13). The outer peripheral wall of the circular block (7) is provided with two insertion holes that are adapted to the extrusion plates (14). The bottom of the two extrusion plates (14) abuts against the inclined side parts of the two trapezoidal blocks (16). The side parts of the two trapezoidal blocks (16) are provided with elastic units.

3. The fiber guide mechanism of a composite material fiber placement device according to claim 2, characterized in that, The elastic unit includes a return spring (17) installed on the side of the trapezoidal block (16), and the other end of the return spring (17) is installed on the inner wall of the side of the movable cavity.

4. The fiber guide mechanism of a composite material fiber placement device according to claim 1, characterized in that, The top of the guide box (1) has two placement slots that are compatible with the placement rack (3). The sides of the two placement racks (3) are each equipped with a fixing block (20). The two sides of the guide box (1) that are far apart from each other are each equipped with two telescopic rods. The ends of each pair of compatible telescopic rods are equipped with a moving plate (18). The sides of the two moving plates (18) are each equipped with a triangular block (19). The sides of the two moving plates (18) are each equipped with an elastic mechanism.

5. The fiber guide mechanism of a composite material fiber placement device according to claim 4, characterized in that, The elastic mechanism includes two tension springs (21) installed on the side of the movable plate (18), and the other end of each tension spring (21) is installed on the inner side wall of the guide box (1).

6. The filament guiding mechanism of a composite material filament placement device according to claim 1, characterized in that, Both guide holes (22) are arc-shaped, and multiple ball bearings are movably installed on the inner side walls of both guide holes (22).

Images