Prepreg Sheet Reel Mechanism for Composite Material Patch Repair and Patch Repair System

Abstract

A rewinding and unwinding mechanism for prepreg sheets used in composite material patch repair, comprising a slideway and table units. The slideway is in a "Z" shape and includes a horizontal straight section, a first arc section, and a vertical straight section. One end of the horizontal straight section is a free end, the other end of the horizontal straight section is connected to one end of the first arc section, and the other end of the first arc section is connected to the lower end of the vertical straight section. The table units are slidably connected to the slideway. There are multiple table units arranged in a line, and adjacent two table units are rotatably connected. With the "Z" - shaped slideway design, during use, the table units slide to the horizontal straight section of the slideway, and when not in use, the table units slide to the vertical straight section of the slideway. Before and after use, the size of the composite material patch repair system will not increase, ensuring that its volume is small enough. A composite material patch repair system is also provided.

Description

Technical Field

[0001] The present invention relates to the technical field of composite material patch repair, and particularly relates to a prepreg sheet winding and unwinding mechanism and a patch repair system for composite material patch repair. Background Art

[0002] During the service process of composite material components, affected by their own alternating loads and complex and changeable environmental factors, various types of damage are likely to occur, reducing the reliability and safety of the structure and seriously threatening service safety. When such damage occurs, a quick and effective repair method should be applied. Patching is the main repair method for such damage to composite material components. Please refer to Figure 1 , and the basic process is to first grind the damaged area layer by layer, then lay prepreg patches layer by layer that match the shape of the grinding, and finally perform heating and curing.

[0003] Please refer to Figure 2 , the applicant previously designed a composite material patch repair system, including an intermediate frame, a winding and unwinding mechanism, a cutting mechanism, and a laying mechanism. The laying mechanism and the cutting mechanism are respectively arranged on both sides of the intermediate frame, and the winding and unwinding mechanism is arranged below the laying mechanism and the cutting mechanism. After the prepreg sheet is unwound by the winding and unwinding mechanism, it is cut into prepreg patches of a predetermined size by the cutting mechanism, and then the prepreg patches are pressed onto the damaged area by the laying mechanism. In order to make the composite material patch repair system small enough in volume, the winding and unwinding mechanism, the cutting mechanism, and the laying mechanism all move above the damaged area during use and move away from above the damaged area when not in use.

[0004] However, the existing winding and unwinding mechanism is an inflexible flat and long body. When it is moved away from above the damaged area when not in use, the length scale of the composite material patch repair system nearly doubles. Summary of the Invention

[0005] In view of this, in view of the above deficiencies, it is necessary to propose a prepreg sheet winding and unwinding mechanism for composite material patch repair.

[0006] It is also necessary to propose a composite material patch repair system.

[0007] A prepreg sheet winding and unwinding mechanism for composite material patch repair includes a slideway and table monomers. The slideway is in a "Z" shape and includes a horizontal straight section, a first arc section, and a vertical straight section. One end of the horizontal straight section is a free end, the other end of the horizontal straight section is connected to one end of the first arc section, and the other end of the first arc section is connected to the lower end of the vertical straight section. The table monomers are slidably connected to the slideway. There are multiple table monomers arranged in a line, and two adjacent table monomers are rotatably connected.

[0008] Preferably, the slideway further includes a second arc section, one end of the second arc section is connected to the upper end of the vertical straight section, and the other end of the second arc section is a free end.

[0009] Preferably, the pre-preg sheet winding and unwinding mechanism for composite material patch repair further includes a first shaft seat, a second shaft seat, a first reel, and a second reel. The first shaft seat and the second shaft seat are arranged on the slideway. The first shaft seat is slidably connected to the slideway, the first shaft seat is connected to a table monomer, the second shaft seat is connected to the slideway, the first reel is arranged on the first shaft seat, the first reel is rotatably connected to the first shaft seat, the second reel is arranged on the second shaft seat, and the second reel is rotatably connected to the second shaft seat.

[0010] Preferably, the inner cavity of the table monomer is hollow, the inner cavity of the table monomer is communicated with the inlet of a vacuum pump, and air holes are densely distributed on the upper surface of the table monomer.

[0011] Preferably, the pre-preg sheet winding and unwinding mechanism for composite material patch repair further includes a third reel and a fourth reel. The third reel and the fourth reel are both arranged on the second shaft seat, and the third reel and the fourth reel are parallel to each other.

[0012] Preferably, the horizontal height of the third reel is higher than that of the fourth reel, and the third reel and the fourth reel are in the same vertical plane.

[0013] Preferably, the pre-preg sheet winding and unwinding mechanism for composite material patch repair further includes a first pressure roller. The first pressure roller is arranged on the first shaft seat, the first pressure roller is arranged in parallel with the first reel, and the first pressure roller is arranged between the third reel or the fourth reel and the first reel.

[0014] Preferably, the pre-preg sheet winding and unwinding mechanism for composite material patch repair further includes a second pressure roller. The second pressure roller is arranged on the second shaft seat, the second pressure roller is arranged in parallel with the second reel, and the second pressure roller is arranged between the third reel or the fourth reel and the second reel.

[0015] A composite material patch repair system, characterized in that: it includes a pre-preg sheet winding and unwinding mechanism for composite material patch repair, and further includes an intermediate frame. The free end of the horizontal straight section is connected to the right side of the intermediate frame.

[0016] Preferably, the composite material patch repair system further includes a paving mechanism and a cutting mechanism. The paving mechanism and the cutting mechanism are both arranged above the winding and unwinding mechanism. The paving mechanism is arranged on the right side of the intermediate frame, and the cutting mechanism is arranged on the left side of the intermediate frame.

[0017] The beneficial effects of the present invention are as follows: With the "Z"-shaped slideway design, during use, the table monomer slides to the horizontal straight section of the slideway, and when not in use, the table monomer slides to the vertical straight section of the slideway. Before and after use, the size of the composite material patching and repair system will not increase, ensuring that its volume is small enough. Description of the Drawings

[0018] Figure 1 It is a schematic diagram of patching a composite material component.

[0019] Figure 2 It is a schematic diagram of the existing composite material patching and repair system.

[0020] Figure 3 It is an axonometric view of the prepreg sheet winding and unwinding mechanism for composite material patching and repair before the prepreg sheet is spread.

[0021] Figure 4 It is an axonometric view of the prepreg sheet winding and unwinding mechanism for composite material patching and repair with the prepreg sheet spread.

[0022] Figure 5 For Figure 4 Partial enlarged view of

[0023] Figure 6 It is a bottom view of the in-situ conformable paving mechanism for composite material patching and repair.

[0024] Figure 7 It is a schematic diagram of each adsorption unit, where A is the 1# adsorption unit, B is the 2# adsorption unit, C is the 3# adsorption unit, D is the 4# adsorption unit, and E is the 5# adsorption unit.

[0025] Figure 8 It is a cross-sectional view of the adsorption monomer.

[0026] Figure 9 It is an axonometric view of the deployment assembly.

[0027] Figure 10 It is an axonometric view of the slider and the slide plate.

[0028] Figure 11 It is a partial axonometric view of the slide rail.

[0029] Figure 12 It is an axonometric view of the engaging block and the engaging groove.

[0030] Figure 13 It is a schematic diagram of the in-situ conformable paving mechanism for composite material patching and repair, where the airbag is in the deflated state.

[0031] Figure 14 It is a schematic diagram of the in-situ conformable paving mechanism for composite material patching and repair, where the airbag is in the inflated state.

[0032] Figure 15 It is the first usage state of the patch repair system for composite materials.

[0033] Figure 16 It is the second usage state of the patch repair system for composite materials.

[0034] Figure 17 It is the third usage state of the patch repair system for composite materials.

[0035] Figure 18 It is the fourth usage state of the patch repair system for composite materials.

[0036] Figure 19 It is the fifth usage state of the patch repair system for composite materials.

[0037] Figure 20 It is the sixth usage state of the patch repair system for composite materials.

[0038] In the figure: composite material component 10, prepreg composite sheet 20, prepreg patch 21, prepreg sheet 22, lower protective layer 23, upper protective layer 24, prepreg waste 25, laying mechanism 30, support plate 31, engaging groove 311, deformable body 32, adsorption monomer 33, unfolding assembly 34, slide plate 341, engaging block 342, slide rail 343, rolling groove 3431, slider 344, rotating frame 345, first connecting rod 346, second connecting rod 347, ball 348, first telescopic member 40, second telescopic member 50, intermediate frame 60, retracting and deploying mechanism 70, slideway 71, horizontal straight section 711, first arc section 712, vertical straight section 713, second arc section 714, table monomer 72, first shaft seat 73, second shaft seat 74, first reel 75, second reel 76, third reel 77, fourth reel 78, first pressing roller 79, second pressing roller 7100, third telescopic member 80, fourth telescopic member 90, cutting mechanism 100. Embodiment

[0039] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the accompanying drawings required for use in the embodiments. Obviously, the accompanying drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can also be obtained based on these drawings.

[0040] See Figures 3 to 5, An embodiment of the present invention provides a pre-impregnated sheet retracting and extending mechanism 70 for composite material patch repair, which includes a slideway 71 and a table monomer 72. The slideway 71 is in a "Z" shape and includes a horizontal straight section 711, a first arc section 712, and a vertical straight section 713. One end of the horizontal straight section 711 is a free end, the other end of the horizontal straight section 711 is connected to one end of the first arc section 712, and the other end of the first arc section 712 is connected to the lower end of the vertical straight section 713. The table monomer 72 is slidably connected to the slideway 71. There are multiple table monomers 72 arranged in a line, and two adjacent table monomers 72 are rotatably connected.

[0041] The beneficial effect of the present invention is: due to the "Z" - shaped slideway 71 design, during use, the table monomer 72 slides to the horizontal straight section 711 of the slideway 71, and when not in use, the table monomer 72 slides to the vertical straight section 713 of the slideway 71. Before and after use, the size of the composite material patch repair system will not increase, ensuring that its volume is small enough.

[0042] See Figures 3 to 5 , Further, the slideway 71 further includes a second arc section 714. One end of the second arc section 714 is connected to the upper end of the vertical straight section 713, and the other end of the second arc section 714 is a free end.

[0043] See Figures 3 to 5 , Further, the pre-impregnated sheet retracting and extending mechanism 70 for composite material patch repair further includes a first shaft seat 73, a second shaft seat 74, a first reel 75, and a second reel 76. The first shaft seat 73 and the second shaft seat 74 are arranged on the slideway 71. The first shaft seat 73 is slidably connected to the slideway 71 and is connected to one table monomer 72. The second shaft seat 74 is connected to the slideway 71. The first reel 75 is arranged on the first shaft seat 73 and is rotatably connected to the first shaft seat 73. The second reel 76 is arranged on the second shaft seat 74 and is rotatably connected to the second shaft seat 74.

[0044] In one embodiment, there are two slideways 71 which are parallel to each other. The table unit 72 is a flat and long rectangle, and the length direction of the table unit 72 is perpendicular to the length direction of the slideways 71. One end of the table unit 72 is slidably connected to one slideway 71, and the other end of the table unit 72 is slidably connected to the other slideway 71. There are two first shaft seats 73, one first shaft seat 73 is arranged on one slideway 71, and the other first shaft seat 73 is arranged on the other slideway 71. There are two second shaft seats 74, one second shaft seat 74 is arranged on one slideway 71, and the other second shaft seat 74 is arranged on the other slideway 71. One end of the first reel 75 is rotatably connected to one first shaft seat 73, and the other end of the first reel 75 is rotatably connected to the other first shaft seat 73. One end of the second reel 76 is rotatably connected to one second shaft seat 74, and the other end of the first reel 75 is rotatably connected to the other second shaft seat 74.

[0045] In one embodiment, the pre-impregnated sheet winding and unwinding mechanism 70 for composite material patch repair further includes rollers. Rollers are arranged on the table unit 72, and the rollers are in rolling cooperation with the slideways 71.

[0046] In one embodiment, the pre-impregnated sheet winding and unwinding mechanism 70 for composite material patch repair further includes a first driving pulley and a first driven pulley. The first driving pulley is arranged at one end of the slideway 71 and is driven to rotate by a first motor. The first driven pulley is arranged at the other end of the slideway 71, and a transmission belt is wound between the first driving pulley and the first driven pulley. The transmission belt is connected to one table unit 72, and the movement of the transmission belt drives multiple table units 72 to move along the slideways 71. The first reel 75 is driven to rotate by a second motor. There are two first driving pulleys and two first driven pulleys, which are respectively arranged on the two slideways 71 and operate synchronously through two first motors.

[0047] See Figures 3 to 5 , further, the inner cavity of the table unit 72 is hollow, and the inner cavity of the table unit 72 is communicated with the inlet of a vacuum pump. Air holes are densely distributed on the upper surface of the table unit 72.

[0048] See Figures 3 to 5 , further, the pre-impregnated sheet winding and unwinding mechanism 70 for composite material patch repair further includes a third reel 77 and a fourth reel 78. The third reel 77 and the fourth reel 78 are both arranged on the second shaft seat 74, and the third reel 77 and the fourth reel 78 are parallel to each other.

[0049] In one embodiment, one end of the third reel 77 is rotatably connected to one second shaft seat 74, the other end of the third reel 77 is rotatably connected to the other second shaft seat 74, one end of the fourth reel 78 is rotatably connected to one second shaft seat 74, and the other end of the fourth reel 78 is rotatably connected to the other second shaft seat 74.

[0050] SeeFigures 3 to 5 , further, the horizontal height of the third reel 77 is higher than that of the fourth reel 78, and the third reel 77 and the fourth reel 78 are in the same vertical plane.

[0051] See Figures 3 to 5 , further, the pre-impregnated sheet winding and unwinding mechanism 70 for composite material patch repair further includes a first pressure roller 79. The first pressure roller 79 is arranged on the first shaft seat 73, and the first pressure roller 79 is arranged in parallel with the first reel 75. The first pressure roller 79 is arranged between the third reel 77 or the fourth reel 78 and the first reel 75.

[0052] See Figures 3 to 5 , further, the pre-impregnated sheet winding and unwinding mechanism 70 for composite material patch repair further includes a second pressure roller 7100. The second pressure roller 7100 is arranged on the second shaft seat 74, and the second pressure roller 7100 is arranged in parallel with the second reel 76. The second pressure roller 7100 is arranged between the third reel 77 or the fourth reel 78 and the second reel 76.

[0053] In one embodiment, the pre-impregnated sheet winding and unwinding mechanism 70 for composite material patch repair further includes a second driving pulley, a second driven pulley, and a third driven pulley. The second driven pulley and the third driven pulley are respectively installed at the ends of the third reel 77 and the fourth reel 78. The third reel 77 rotates synchronously with the second driven pulley, and the fourth reel 78 rotates synchronously with the third driven pulley. A third motor is arranged on the second shaft seat 74, and the output end of the third motor is installed with the second driving pulley. The second driving pulley is in transmission connection with the second driven pulley through a transmission belt, and the second driving pulley is in transmission connection with the third driven pulley through another transmission belt. One end of the second pressure roller 7100 is rotatably connected to one second shaft seat 74, and the other end of the second pressure roller 7100 is rotatably connected to the other second shaft seat 74. One end of the first pressure roller 79 is rotatably connected to one first shaft seat 73, and the other end of the first pressure roller 79 is rotatably connected to the other first shaft seat 73.

[0054] See Figure 3 and Figure 5, the upper surface of the prepreg sheet 22 is covered with an upper protective layer 24, and the lower surface of the prepreg sheet 22 is covered with a lower protective layer 23. The prepreg sheet 22, the upper protective layer 24, and the lower protective layer 23 form a prepreg composite sheet 20. Before use, the prepreg composite sheet 20 is wound around the second reel 76. When in use, the free end of the prepreg composite sheet 20 is manually separated, the upper protective layer 24 is wound around the third reel 77, the lower protective layer 23 is wound around the fourth reel 78, the prepreg sheet 22 is wound around the first reel 75, the first shaft seat 73 is moved to the right relative to the second shaft seat 74, the table unit 72 moves to the horizontal straight section 711 of the slideway 71, the prepreg sheet 22 is spread on the table unit 72 and adsorbed by negative pressure of air holes, and then the prepreg sheet 22 is cut into prepreg patches 21 by the cutting mechanism 100. Then, the prepreg patches 21 are taken away by the laying mechanism 30, and the prepreg waste 25 is gradually wound around the first reel 75. After use, the first shaft seat 73 is moved to the left relative to the second shaft seat 74, and the table unit 72 moves to the vertical straight section 713 of the slideway 71.

[0055] See Figures 15 to 20 , an embodiment of the present invention provides a composite material patching and repairing system, including a prepreg sheet winding and unwinding mechanism 70 for composite material patching and repairing, and further including an intermediate frame 60. The free end of the horizontal straight section 711 is connected to the right side of the intermediate frame 60.

[0056] See Figures 15 to 20 , further, the composite material patching and repairing system further includes a laying mechanism 30 and a cutting mechanism 100. The laying mechanism 30 and the cutting mechanism 100 are both arranged above the winding and unwinding mechanism 70. The laying mechanism 30 is arranged on the right side of the intermediate frame 60, and the cutting mechanism 100 is arranged on the left side of the intermediate frame 60.

[0057] See Figure 6 and Figure 7 , the laying mechanism 30 includes a support plate 31 and adsorption monomers 33. M uniformly distributed adsorption monomers 33 are arranged on one side of the support plate 31. The adsorption monomers 33 are arranged in N adsorption units in a ring shape with gradually increasing radii in sequence from the center of the support plate 31 to the periphery of the support plate 31.

[0058] By dividing the M adsorption monomers 33 into N adsorption units corresponding to different sizes of prepreg patches 21, and one adsorption unit corresponds to adsorbing one specification of prepreg patch 21, the problem that the adsorption position of the prepreg patch 21 in the prior art cannot be accurately controlled is solved.

[0059] See Figure 8, Further, the adsorption monomer 33 is a conical airbag. The adsorption monomer 33 is hollow, and the hollow part of the adsorption monomer 33 is the first cavity. A suction hole communicating with the first cavity is provided at the free end of the adsorption monomer 33. The side wall of the adsorption monomer 33 is hollow, and the hollow part of the side wall of the adsorption monomer 33 is the second cavity. The first cavities of the adsorption monomers 33 of any one adsorption unit are connected in series, and the second cavities of the adsorption monomers 33 of any one adsorption unit are connected in series.

[0060] See Figure 6 and Figure 7 , taking M = 69 adsorption monomers 33 and N = 5 adsorption units as an example, 1 adsorption monomer 33 located in the center is the 1# adsorption unit, 8 adsorption monomers 33 are the 2# adsorption unit, 16 adsorption monomers 33 are the 3# adsorption unit, 24 adsorption monomers 33 are the 4# adsorption unit, and 20 adsorption monomers 33 are the 5# adsorption unit. The prepreg patches 21 of 4 specifications are a prepreg patch 21, b prepreg patch 21, c prepreg patch 21, and d prepreg patch 21 from small to large. Among them, the 1# adsorption unit and the 2# adsorption unit are combined to adsorb the a prepreg patch 21, the 1# adsorption unit, the 2# adsorption unit, and the 3# adsorption unit are combined to adsorb the b prepreg patch 21, the 1# adsorption unit, the 2# adsorption unit, the 3# adsorption unit, and the 4# adsorption unit are combined to adsorb the c prepreg patch 21, and the 1# adsorption unit, the 2# adsorption unit, the 3# adsorption unit, the 4# adsorption unit, and the 5# adsorption unit are combined to adsorb the d prepreg patch 21. Of course, the height of the adsorption monomer 33 can be selected as needed.

[0061] See Figure 9 and Figure 12 , Further, the paving mechanism 30 further includes at least 3 unfolding components 34. The unfolding components 34 are evenly distributed along the circumferential direction of the support plate 31 with the center of the support plate 31 as the center of the circle. Engagement grooves 311 corresponding to the number of the unfolding components 34 are provided on the support plate 31. The unfolding component 34 includes a sliding plate 341 and an engaging block 342. One end of the engaging block 342 is connected to the sliding plate 341, and a hook-shaped portion is provided at the other end of the engaging block 342. The shape of the hook-shaped portion matches the shape of the engagement groove 311. The sliding plate 341 moves away from the support plate 31 along the radial direction of the support plate 31, and the engaging block 342 is engaged in the engagement groove 311. The sliding plate 341 moves closer to the support plate 31 along the radial direction of the support plate 31, and the engaging block 342 disengages from the engagement groove 311.

[0062] In one embodiment, it is preferable that the diameter of the support plate 31 is smaller than the diameter of the deformable body 32, and it is preferable that the number of the unfolding components 34 is 4. The rotary frame 345 is driven to rotate by a driving mechanism. The driving mechanism is a conventional structure and will not be elaborated here.

[0063] See Figure 9, further, the deployment assembly 34 further includes a slide rail 343 and a slider 344. One end of the slide rail 343 is connected to the center of the support plate 31, and the other end of the slide rail 343 extends along the radial direction of the support plate 31. The slider 344 is arranged on the slide plate 341, and the slider 344 is in sliding fit with the slide rail 343.

[0064] See Figure 9 , further, the deployment assembly 34 further includes a rotating frame 345, a first connecting rod 346, and a second connecting rod 347. The rotating frame 345 is arranged at the center of the support plate 31, and the rotating frame 345 is rotatably connected to the support plate 31. One end of the first connecting rod 346 is rotatably connected to the support plate 31, the other end of the first connecting rod 346 is rotatably connected to one end of the second connecting rod 347, and the other end of the second connecting rod 347 is rotatably connected to the slider 344.

[0065] See Figure 10 and Figure 11 , further, the deployment assembly 34 further includes a ball 348. A rolling groove 3431 is provided on the slide rail 343. The rolling groove 3431 extends along the length direction of the slide rail 343, and the rolling groove 3431 is in an "S" shape. The ball 348 is installed on the slider 344, the ball 348 is rotatably connected to the slider 344, and the ball 348 is in rolling fit with the rolling groove 3431.

[0066] In the above embodiment, through the cooperation of the engaging block 342 and the engaging groove 311 between the support plate 31 and the slide plate 341, and the cooperation of the "S"-shaped rolling groove 3431 and the ball 348, the overall strength after the deployment of the support plate 31 and the slide plate 341 is improved, which is beneficial to the stability of the passive deformation of the airbag.

[0067] See Figure 13 and Figure 14 , further, the paving mechanism 30 further includes a deformable body 32. The deformable body 32 is an airbag. The lower surface of the support plate 31 is connected to the upper surface of the deformable body 32, and M uniformly distributed adsorption monomers 33 are provided on the lower surface of the deformable body 32.

[0068] In one embodiment, it is preferable that the end face of the support plate 31 is circular, and it is preferable that the end face of the main airbag connected to the support plate 31 is circular. See Figure 14 , after the main airbag is inflated by an air pump, it is preferable that the longitudinal section is arc-shaped. The second cavity of any adsorption unit is inflated separately by one air pump, and the first cavity of any adsorption unit is evacuated separately by one air pump.

[0069] By inflating the airbag to make it actively deform and adapt to the curvature of the patching structure surface, the control of the curvature of the lower surface of the airbag is realized; during the conforming pressing process, the elastic deformation possessed by the airbag itself is utilized, and it is passively deformed to conformally lay with the prepreg patch 21 in the damaged patching area, ensuring the paving accuracy and quality of the prepreg patch 21.

[0070] See Figures 15 to 20 , further, the composite material patch repair system further includes a first telescopic member 40, a second telescopic member 50, a third telescopic member 80, and a fourth telescopic member 90. The telescopic end of the first telescopic member 40 is connected to the slide rail 343, and the fixed end of the first telescopic member 40 is connected to the telescopic end of the second telescopic member 50. The fixed end of the second telescopic member 50 is connected to the right side of the intermediate frame 60.

[0071] The cutting mechanism 100 is used for cutting the prepreg patch 21. The telescopic end of the third telescopic member 80 is connected to the cutting mechanism 100, the fixed end of the third telescopic member 80 is connected to the telescopic end of the fourth telescopic member 90, and the fixed end of the fourth telescopic member 90 is connected to the left side of the intermediate frame 60.

[0072] In one embodiment, it is preferred that the cutting mechanism 100 and the paving mechanism 30 are at the same horizontal height, and it is preferred that the paving mechanism 30 is located below the cutting mechanism 100. The cutting mechanism 100 can be implemented by a mechanism with equivalent functions in the prior art, and this application does not make any restrictions.

[0073] In one embodiment, the first telescopic member 40, the second telescopic member 50, the third telescopic member 80, and the fourth telescopic member 90 are of conventional structures, such as ball splines and scissor push rods, which will not be elaborated here.

[0074] See Figures 15 to 20 , taking the composite material component 10 as a wind turbine blade as an example, the usage method of the composite material patch repair system is described as follows:

[0075] Fix the intermediate frame 60 on the composite material component 10 (wind turbine blade) through a suction cup;

[0076] Move the first shaft seat 73 relative to the second shaft seat 74 to the right, and the table unit 72 moves to the horizontal straight section 711 of the slideway 71. The prepreg sheet 22 is spread on the table unit 72;

[0077] Start the third telescopic member 80 and the fourth telescopic member 90, adjust the position of the cutting mechanism 100. After cutting the prepreg patch 21 with the required size, the cutting mechanism 100 returns to its original position;

[0078] Start the first telescopic member 40, the second telescopic member 50, and the driving mechanism. The paving mechanism 30 opens, and select the adsorption unit with the same size as the aforementioned prepreg patch 21 to work and adsorb the aforementioned prepreg patch 21;

[0079] Move the first shaft seat 73 relative to the second shaft seat 74 to the left, and the table unit 72 moves to the vertical straight section 713 of the slideway 71. The paving mechanism 30 continues to move downward and lays the prepreg patch 21. The airbag works, and due to the active deformation and passive deformation of the airbag, the prepreg patch 21 is laid conformally;

[0080] The paving mechanism 30 retracts and returns to its original position;

[0081] Repeat as above.

[0082] The steps in the method of the embodiment of the present invention can be adjusted, combined, and deleted according to actual needs.

[0083] The modules or units in the device of the embodiment of the present invention can be combined, divided, and deleted according to actual needs.

[0084] The foregoing disclosure is only a preferred embodiment of the present invention, and of course it cannot be used to limit the scope of the rights of the present invention. Those of ordinary skill in the art can understand the whole or part of the process of implementing the above embodiments, and the equivalent changes made according to the claims of the present invention still fall within the scope covered by the invention.

Claims

1. A rewinding and unwinding mechanism for prepreg sheets used in composite material patch repair, characterized in that: It includes a slideway and tabletop monomers. The slideway is "Z"-shaped and includes a horizontal straight segment, a first arc segment, and a vertical straight segment. One end of the horizontal straight segment is a free end, the other end of the horizontal straight segment is connected to one end of the first arc segment, the other end of the first arc segment is connected to the lower end of the vertical straight segment, the tabletop monomers are slidably connected to the slideway, there are multiple tabletop monomers arranged in a line, and two adjacent tabletop monomers are rotatably connected. The slideway further includes a second arc segment. One end of the second arc segment is connected to the upper end of the vertical straight segment, and the other end of the second arc segment is a free end. The pre-preg sheet winding and unwinding mechanism for composite material patch repair further includes a first shaft seat, a second shaft seat, a first reel, and a second reel. The first shaft seat and the second shaft seat are arranged on the slideway, the first shaft seat is slidably connected to the slideway and is connected to one tabletop monomer, the second shaft seat is connected to the slideway, the first reel is arranged on the first shaft seat and is rotatably connected to the first shaft seat, the second reel is arranged on the second shaft seat and is rotatably connected to the second shaft seat. The pre-preg sheet winding and unwinding mechanism for composite material patch repair further includes a third reel and a fourth reel. Both the third reel and the fourth reel are arranged on the second shaft seat, and the third reel and the fourth reel are parallel to each other.

2. The pre-preg sheet winding and unwinding mechanism for composite material patch repair according to claim 1, wherein: The inner cavity of the tabletop monomer is hollow, the inner cavity of the tabletop monomer is communicated with the inlet of a vacuum pump, and air holes are densely distributed on the upper surface of the tabletop monomer.

3. The pre-preg sheet winding and unwinding mechanism for composite material patch repair as claimed in claim 1, wherein: The horizontal height of the third reel is higher than that of the fourth reel, and the third reel and the fourth reel are in the same vertical plane.

4. The pre-impregnated material sheet winding and unwinding mechanism for composite material patch repair according to claim 1, wherein: The pre-preg sheet winding and unwinding mechanism for composite material patch repair further includes a first pressure roller. The first pressure roller is arranged on the first shaft seat, the first pressure roller is arranged parallel to the first reel, and the first pressure roller is arranged between the third reel or the fourth reel and the first reel.

5. The rewinding and unreeling mechanism for prepreg sheets used in composite material patch repair according to claim 1, wherein: The pre-preg sheet winding and unwinding mechanism for composite material patch repair further includes a second pressure roller. The second pressure roller is arranged on the second shaft seat, the second pressure roller is arranged parallel to the second reel, and the second pressure roller is arranged between the third reel or the fourth reel and the second reel.

6. A composite material patch repair system, characterized in that: It includes the pre-preg sheet winding and unwinding mechanism for composite material patch repair according to claim 1, and further includes an intermediate frame. The free end of the horizontal straight segment is connected to the right side of the intermediate frame.

7. The composite material patch repair system according to claim 6, characterized in that: The composite material patch repair system further includes a paving mechanism and a cutting mechanism. Both the paving mechanism and the cutting mechanism are arranged above the winding and unwinding mechanism. The paving mechanism is arranged on the right side of the intermediate frame, and the cutting mechanism is arranged on the left side of the intermediate frame.

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