A forming die and forming method for an I-shaped composite material product

Abstract

The present invention provides a forming die and a forming method for an I-shaped composite material product, and relates to the technical field of composite material component mold design and forming, comprising a forming die, wherein two forming die parts are provided, and a row of floating top pressure parts are respectively installed on the two forming die parts; ejection driving parts are respectively installed on the two forming die parts; four sliding connecting parts are fixedly connected between the two forming die parts; a workpiece body is connected between the two forming die parts, positioning is more accurate, demoulding fracture is not easy to cause, and the forming process can be optimized at the same time, the qualified rate of finished products of such parts is greatly improved, and the twisted wire filling quality is higher; the existing problems of inaccurate forming positioning of I-shaped composite material products, demoulding difficulty, and even stratification, and the problem of improving the defective rate of finished products of such parts are solved.

Description

Technical Field

[0001] The invention relates to the technical field of composite material component mold design and molding, and in particular to a molding mold and a molding method for an I-shaped composite material component. Background Art

[0002] Composite materials are widely used in the aerospace field due to their high specific strength and high specific modulus. With the development and advancement of composite material forming technology, composite parts have gradually transitioned from general parts such as skins and covers that play a dimensional modification role to beams and ribs that play a supporting and load-transmitting role. Common load-bearing parts are mostly C-beams, C-ribs, L-beams, and L-ribs. I-beams and I-ribs are limited by the laminated characteristics of composite materials, and the forming process is cumbersome and difficult. They require high operator skills and have a low product qualification rate. Therefore, it is very necessary to propose a forming mold design and forming method for I-shaped composite parts.

[0003] However, with regard to the currently existing molding molds, molding methods and production processes of I-shaped composite parts, the molding positioning of I-shaped composite parts is inaccurate, demolding is difficult, and even delamination occurs, which increases the defective rate of finished products of such parts, and cannot achieve linked overall demolding. The overall cost is high, and the parts are easily squeezed and damaged. At the same time, it is impossible to achieve auxiliary improvement of the fullness of the twisted wire, resulting in poor fit of the reinforcing edge strips. Summary of the invention

[0004] In view of this, the present invention provides a molding die and a molding method for an I-shaped composite material product. The molding method of the present invention refers to the molding die structure of the present invention, which can effectively realize the one-piece molding of such parts. The twisted wire filling and edge strip reinforcement after the C-type mold combination greatly improve the structural integrity of such parts, and maximize the stiffness and strength performance of such parts.

[0005] The present invention provides a forming mold part, including a forming mold, wherein two forming mold parts are provided, and a row of floating top pressure parts are respectively installed on the two forming mold parts; ejection driving parts are respectively installed on the two forming mold parts; four sliding connecting parts are fixedly connected between the two forming mold parts; a workpiece body is connected between the two forming mold parts; sliding mounting parts are respectively fixedly connected to the two forming mold parts, and top pressure fitting parts are respectively slidably connected to the two sliding mounting parts; the forming mold part comprises: a mold mounting plate, a C-shaped mold block and a sliding mounting hole, and the C-shaped mold block is fixedly connected to the mold mounting plate; a row of sliding mounting holes is provided on the C-shaped mold block, and four sliding grooves are respectively provided on a row of sliding mounting holes.

[0006] Furthermore, the sliding mounting member comprises: a sliding mounting bar and a mounting support frame, wherein the sliding mounting bar is fixedly connected to the sliding mounting cylinders on both sides; and the mounting support frame is slidably connected to the sliding mounting bar.

[0007] Furthermore, the floating top pressure part includes: a demolding sliding shaft, a raised sliding bar, and a demolding top block, and the demolding sliding shaft is fixedly connected to seven raised sliding bars; the demolding sliding shaft is slidably connected to the sliding mounting hole through the seven raised sliding bars; a demolding top block is placed on the demolding sliding shaft, and the demolding top block is embedded in the C-shaped mold block; the top of the demolding top block is flush with the C-shaped mold block.

[0008] Furthermore, the ejection drive component includes: an ejection drive rack, a rack sliding block, a drive screw and a drive column, the ejection drive rack is slidably connected to the C-shaped mold block, and the ejection drive rack is engaged with a row of drive gears; two rack sliding blocks are fixedly connected to the ejection drive rack, and the two rack sliding blocks are respectively slidably connected to the C-shaped mold block; the drive screw is rotatably connected to the mold mounting plate; the drive screw is threadedly connected to the two rack sliding blocks; the end of the drive screw is fixedly connected to the drive column.

[0009] Furthermore, the workpiece body includes: a forming plate, a reinforcing edge strip and a filling twisted wire. The forming plates are provided with two, and the two forming plates are respectively attached to two C-shaped mold blocks; two reinforcing edge strips are attached and connected between the two forming plates; and the space between the two forming plates is filled with a filling twisted wire.

[0010] Furthermore, the floating top pressure piece also includes: a driving threaded rod and a driving gear, the driving threaded rod is rotatably connected to the C-shaped mold block; a demoulding sliding shaft is threadedly connected to the driving threaded rod; and the driving gear is fixedly connected to the bottom of the driving threaded rod.

[0011] Furthermore, the top pressure bonding component also includes: a rotating extrusion roller, a wire twisting groove and a pressure spring, the rotating extrusion roller is rotatably connected to the roller frame; the rotating extrusion roller is provided with a wire twisting groove; and the two top pressure bonding sliding shafts are respectively provided with a pressure spring.

[0012] Furthermore, the sliding connection includes: a sliding mounting tube, a sliding mounting column and a hydraulic cylinder, the sliding mounting tube is slidably connected to the sliding mounting column; the sliding mounting tube is fixedly connected to the bottom mold mounting plate; the sliding mounting column is fixedly connected to the top mold mounting plate; the sliding mounting column is fixedly sleeved with a hydraulic cylinder, and the output shaft of the hydraulic cylinder is fixedly connected to the mold mounting plate.

[0013] Furthermore, the top pressure fitting part includes: a top pressure fitting sliding shaft, a connecting plate and a roller frame. There are two top pressure fitting sliding shafts, and the two top pressure fitting sliding shafts are respectively slidably connected to the mounting support frame; the two top pressure fitting sliding shafts are fixedly connected to the connecting plate; and the two top pressure fitting sliding shafts are fixedly connected to the roller frame.

[0014] Furthermore, a forming mold and forming method of an I-shaped composite material part: a demoulding top block, two C-shaped mold blocks are respectively coated with a demoulding agent, the demoulding agent is applied at least three times, and each time is more than fifteen minutes apart; the demoulding top blocks are respectively installed on the two C-shaped mold blocks; prepreg is laid on the two C-shaped mold blocks respectively, and the number of laying layers is adjusted according to the selected prepreg single layer thickness and the number of parts; after the prepreg laying of the two C-shaped mold blocks is completed, the hydraulic cylinder is used to drive the combined extrusion positioning; after the combination, the two forming plates are twisted and filled until they are flush with both sides, and the twist The same grade of prepreg is used for the wire, and it is required to be fully compacted during filling to avoid depression after curing and molding; the prepreg is continued to be laid on the reinforcing edge strips on both sides of the assembled product to achieve edge strip reinforcement, and the number of laying layers is adjusted according to the single-layer thickness of the selected prepreg and the number of parts; after laying, the rotating extrusion roller is used to compact the surface, and after compaction, the top pressing fittings and sliding mounting parts are removed, and the demoulding cloth, isolation film, breathable felt, vacuum bag, and sealing strip are placed in turn to seal the bag; after curing is completed, the demoulding top block is driven by the threaded rod to drive the ejection, and the demoulding top block and the parts are demoulded together.

[0015] Beneficial Effects

[0016] The molding mold according to each embodiment of the present invention can make the I-shaped composite material parts more accurately molded and positioned, and is less likely to cause demolding fracture. At the same time, the molding process can be optimized, the qualified rate of finished products of such parts can be greatly improved, and the twisted wire filling quality is higher.

[0017] In addition, by setting the ejection drive part, the floating top pressure part can be cooperated with to realize the rapid and simultaneous driving of a row of demoulding ejector blocks to be ejected simultaneously. The overall structure is simple and practical, which can effectively improve the stability of part ejection, and can make the force more balanced at the same time, so as to avoid the situation that the parts are locally ejected and cause the parts to break and bend. At the same time, the floating top pressure part can realize auxiliary vertical lifting and can avoid the friction damage to the parts caused by the threaded ejection method. At the same time, the ejection drive part is simple and convenient to drive, and the structure of the molding mold part is mature and the cost is low, which greatly improves the qualified rate of the finished products of such parts and is more convenient for one-time demoulding. By adopting the rotating drive screw method, the ejection drive rack can be driven to move, and the drive gear set can be engaged during the movement of the ejection drive rack to drive the demoulding sliding shaft to rise, and at the same time drive the demoulding ejector block to move, so as to realize the ejection of the parts. The overall structure is simpler and more stable, and the demoulding quality is improved.

[0018] In addition, by setting the workpiece body, the structure is simple, and auxiliary automatic lifting and extrusion molding can be realized, while ensuring the docking accuracy, avoiding misalignment during parts molding, and the structure is mature and stable. By adopting the workpiece body, the filling twist wire can be set on the workpiece body to achieve auxiliary improvement of the overall structural integrity and avoid hollowing and the like. The overall structure is simpler and more practical. Under the drive of the hydraulic cylinder, the sliding mounting column can be driven to slide on the sliding mounting cylinder to achieve the lifting height for mold taking and also assist in extruding the two forming plates. The overall practicality is stronger and the structure is mature and stable.

[0019] In addition, by setting the sliding mounting parts, the structure is simple and mature, and the fitting and extrusion of the reinforcing edge strips can be realized to improve the fitting degree of the reinforcing edge strips. At the same time, the top pressure fitting parts set can also realize the extrusion of the filling twisted wires, and realize the auxiliary improvement of the compaction degree of the filling twisted wires and improve the subsequent molding quality. At the same time, the filling twisted wires can be set through the set twisting grooves to realize auxiliary pressurization. The set twisting grooves adopt an inward concave structure. On the one hand, it can make the filling twisted wires more concentrated to avoid dispersion and ensure that the filling twisted wires are located between the two molding plates; by adopting the twisting grooves with inward concave structures, it can also realize the auxiliary realization of slightly convex filling twisted wires. When the molding plates are subsequently bonded, the integration effect is better and the occurrence of hollowing and the like is avoided. By setting the sliding mounting parts, the sliding pressurization of the overall parts can be realized. By sliding the mounting support frame, the extrusion rollers are driven to rotate to realize elastic fitting, and the molding is more complete, the process effect is better, and the structural strength of the parts after overall molding is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0021] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0022] In the attached picture:

[0023] Figure 1 It is a schematic diagram of the overall structure of the mold of an embodiment of the present invention.

[0024] Figure 2 It is an enlarged view of the internal structure of the mold of an embodiment of the present invention.

[0025] Figure 3 It is a cross-sectional view of the internal structure of a mold according to an embodiment of the present invention.

[0026] Figure 4 It is a cross-sectional view of the workpiece main structure of an embodiment of the present invention.

[0027] Figure 5 It is a schematic structural diagram of a molding die portion according to an embodiment of the present invention.

[0028] Figure 6 It is a schematic diagram of the structure of a floating top pressure piece according to an embodiment of the present invention.

[0029] Figure 7 Schematic diagram of the structure of the ejector drive member according to an embodiment of the present invention.

[0030] Figure 8 Schematic diagram of the structure of a sliding connector according to an embodiment of the present invention.

[0031] Fig. 9 It is a schematic diagram of the main structure of a workpiece according to an embodiment of the present invention.

[0032] Fig.10 It is a schematic diagram of the structure of the sliding mounting member of an embodiment of the present invention.

[0033] Fig.11 It is a schematic diagram of the structure of the top pressing fitting according to an embodiment of the present invention.

[0034] Reference numerals list

[0035] 1. Molding mold part; 101. Mold mounting plate; 102. C-type mold block; 103. Sliding mounting hole; 2. Floating top pressure piece; 201. Demolding sliding shaft; 2011. Raised sliding bar; 202. Demolding top block; 203. Driving threaded rod; 204. Driving gear; 3. Ejection drive piece; 301. Ejection driving rack; 302. Rack sliding block; 303. Driving screw rod; 304. Driving column; 4. Sliding connector; 4 01. Sliding mounting cylinder; 402. Sliding mounting column; 403. Hydraulic cylinder; 5. Workpiece body; 501. Forming plate; 502. Reinforced edge strip; 503. Filling twisted wire; 6. Sliding mounting part; 601. Sliding mounting strip; 602. Mounting support frame; 7. Top pressure fitting part; 701. Top pressure fitting sliding shaft; 702. Connecting plate; 703. Roller frame; 704. Rotating extrusion roller; 7041. Twisting wire groove; 705. Pressure spring. DETAILED DESCRIPTION

[0036] In order to make the purpose, scheme and advantages of the technical solution of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described in conjunction with the drawings of the specific embodiments of the present invention. Unless otherwise specified, the terms used herein have the usual meanings in the art. The same reference numerals in the drawings represent the same components.

[0037] Example: Please refer to Figures 1 to 11 As shown:

[0038] The present invention provides a forming mold for an I-shaped composite material part and a forming method thereof, comprising a forming mold part 1, wherein two forming mold parts 1 are provided, and a row of floating top pressure parts 2 are respectively installed on the two forming mold parts 1; an ejection driving part 3 is respectively installed on the two forming mold parts 1; four sliding connecting parts 4 are fixedly connected between the two forming mold parts 1; a workpiece body 5 is connected between the two forming mold parts 1; sliding mounting parts 6 are respectively fixedly connected to the two forming mold parts 1, and top pressure fitting parts 7 are respectively slidably connected to the two sliding mounting parts 6; the forming mold part 1 comprises: a mold mounting plate 101, a C-type mold block 102 and a sliding mounting hole 103, the mold mounting plate 101 is fixedly connected to the C-type mold block 102; a row of sliding mounting holes 103 is provided on the C-type mold block 102, and four sliding grooves are respectively provided on the row of sliding mounting holes 103.

[0039] The floating top pressure member 2 includes: a demoulding sliding shaft 201, a protruding sliding bar 2011, and a demoulding top block 202. The demoulding sliding shaft 201 is fixedly connected with seven protruding sliding bars 2011; the demoulding sliding shaft 201 is slidably connected to the sliding mounting hole 103 through the seven protruding sliding bars 2011; a demoulding top block 202 is placed on the demoulding sliding shaft 201, and the demoulding top block 202 is embedded in the C-shaped mold block 102; the top of the demoulding top block 202 is flush with the C-shaped mold block 102; the floating top pressure member 2 also includes: a driving threaded rod 203 and a driving gear 204, the driving threaded rod 203 is rotated to connect The ejector drive member 3 comprises an ejector drive rack 301, a rack sliding block 302, a drive screw 303 and a drive column 304. The ejector drive rack 301 is slidably connected to the C-shaped mold block 102, and the ejector drive rack 301 is meshed with a row of drive gears 204. Two rack sliding blocks 302 are fixedly connected to the ejector drive rack 301, and the two rack sliding blocks 302 are respectively slidably connected to the C-shaped mold block 102. ; The driving screw rod 303 is rotatably connected to the mold mounting plate 101; the driving screw rod 303 is threadedly connected to the two rack sliding blocks 302; the end of the driving screw rod 303 is fixedly connected to the driving column 304, and by setting the ejection driving member 3, the floating ejection member 2 can be coordinated with the set ejection member 2 to achieve rapid and simultaneous driving of a row of demoulding ejection blocks 202 to eject at the same time. The overall structure is simple and practical, which can effectively improve the stability of part ejection, and can make the force more balanced at the same time, avoiding the situation where the parts are partially ejected and cause the parts to break and bend. At the same time, the floating ejection member 2 can achieve auxiliary vertical lifting, which can avoid the use of screws The pattern ejection method causes friction damage to the parts. At the same time, the ejection drive member 3 is simple and convenient to drive. The molding mold part 1 is mature in structure and low in cost, which greatly improves the qualified rate of finished products of such parts and is more convenient for one-time demoulding. By adopting the rotating drive screw 303, the ejection drive rack 301 can be driven to move. During the movement of the ejection drive rack 301, the drive gear 204 can be engaged to drive the demoulding sliding shaft 201 to rise, and at the same time drive the demoulding ejector block 202 to move, so as to eject the parts. The overall structure is simpler and more stable, and the demoulding quality is improved.

[0040] The sliding connection member 4 includes: a sliding installation cylinder 401, a sliding installation column 402 and a hydraulic cylinder 403. The sliding installation cylinder 401 is slidably connected with the sliding installation column 402; the sliding installation cylinder 401 is fixedly connected to the mold mounting plate 101 at the bottom; the sliding installation column 402 is fixedly connected to the mold mounting plate 101 at the top; the hydraulic cylinder 403 is fixedly sleeved on the sliding installation column 402, and the output shaft of the hydraulic cylinder 403 is fixedly connected to the mold mounting plate 101; the workpiece body 5 includes: a forming plate 501, a reinforcing edge strip 502 and a filling twisted wire 503. Two forming plates 501 are provided, and the two forming plates 501 are respectively attached to the two C-shaped mold blocks 102; the two forming plates 501 are attached and connected There are two reinforcing edge strips 502; filling twisted wires 503 are filled between the two forming plates 501. By setting the workpiece main body 5, the structure is simple, and auxiliary automatic lifting and extrusion forming can be realized, while ensuring the docking accuracy, avoiding misalignment during part forming, and the structure is mature and stable. By adopting the workpiece main body 5, the filling twisted wires 503 can be set on the workpiece main body 5 to assist in improving the overall structural integrity and avoid hollowing and the like. The overall structure is simpler and more practical. Under the drive of the hydraulic cylinder 403, the sliding mounting column 402 can be driven to slide on the sliding mounting cylinder 401 to achieve the lifting height for mold taking and also assist in extruding the two forming plates 501. The overall practicality is stronger and the structure is mature and stable.

[0041] The sliding mounting member 6 includes: a sliding mounting strip 601 and a mounting support frame 602. The sliding mounting strip 601 is fixedly connected to the sliding mounting cylinders 401 on both sides; the mounting support frame 602 is slidably connected to the sliding mounting strip 601; the top pressing fitting member 7 includes: a top pressing fitting sliding shaft 701, a connecting plate 702 and a roller frame 703. There are two top pressing fitting sliding shafts 701. The two top pressing fitting sliding shafts 701 are slidably connected to the mounting support frame 602 respectively; the two top pressing fitting sliding shafts 701 The top pressing fitting member 7 further comprises: a rotating extrusion roller 704, a twisting groove 7041 and a pressure spring 705, wherein the rotating extrusion roller 704 is rotatably connected to the roller frame 703; a twisting groove 7041 is provided on the rotating extrusion roller 704; and a pressure spring 705 is respectively mounted on the two top pressing fitting sliding shafts 701. By setting the sliding mounting member 6, the structure is simple and mature, and the strengthening edge strip 5 can be realized. 02's fitting and extrusion can improve the fitting degree of the reinforcing edge strip 502. At the same time, the top pressure fitting part 7 set can also extrude the filling twisted wire 503, and assist in improving the compaction degree of the filling twisted wire 503, and improve the subsequent molding quality. At the same time, the filling twisted wire 503 can be set through the twisting groove 7041 to achieve auxiliary pressurization. The twisting groove 7041 set adopts a concave structure. On the one hand, it can make the filling twisted wire 503 more concentrated and avoid dispersion to ensure that the filling twisted wire 503 is located between the two molding plates 501; by adopting the twisting groove 7041 with a concave structure, it can also assist in making the filling twisted wire 503 slightly raised. When the molding plate 501 is subsequently bonded, the integration effect is better and the occurrence of hollowing and the like is avoided. By setting the sliding mounting part 6, the sliding pressure on the overall part can be achieved. By sliding the mounting support frame 602, the rotating extrusion roller 704 is driven to achieve elastic fitting, more complete molding, better process effect, and improve the structural strength of the overall part after molding.

[0042] Among them, a forming mold and a forming method of an I-shaped composite material part: 1. Demolding top block 202, two C-type mold blocks 102 are respectively coated with a release agent, and the release agent is applied at least three times, with an interval of more than fifteen minutes each time; 2. The demoulding top block 202 is installed on the two C-type mold blocks 102 respectively; 3. Prepreg is laid on the two C-type mold blocks 102 respectively, and the number of laying layers is adjusted according to the selected prepreg single layer thickness and the number of parts; 4. After the prepreg is laid on the two C-type mold blocks 102, the hydraulic cylinder 403 is used to drive the combined extrusion positioning; 5. After the combination, the two forming plates 501 are twisted and filled until they are connected. The two sides are flush, and the twisted wires are made of the same brand of prepreg. They are required to be fully compacted during filling to avoid depressions after curing and molding; 6. Continue to lay the prepreg on the reinforcing edge strips 502 on both sides of the assembled product to strengthen the edge strips. The number of laying layers is adjusted according to the thickness of the selected prepreg layer and the number of parts; 7. After paving, use the rotating extrusion roller 704 to compact the surface. After compaction, remove the top pressing fitting part 7 and the sliding mounting part 6, and place the demoulding cloth, isolation film, breathable felt, vacuum bag, and sealing strip in turn to seal the bag; 8. After curing is completed, the demoulding top block 202 is driven to be ejected by driving the threaded rod 203, and the demoulding top block and the parts are demoulded together.

[0043] Specific usage and function of this embodiment: In the present invention, two molding plates 501 are respectively installed on two C-shaped mold blocks 102, and before that, demoulding top blocks 202 are respectively installed on two C-shaped mold blocks 102; prepreg is laid on the two C-shaped mold blocks 102, and the number of laying layers is adjusted according to the selected prepreg single layer thickness and the number of parts; after the prepreg laying of the two C-shaped mold blocks 102 is completed, the hydraulic cylinder 403 is used to drive the combined extrusion positioning; under the drive of the hydraulic cylinder 403, the sliding installation column 402 can be driven to slide on the sliding installation cylinder 401 to achieve the lifting height for mold taking and also assist in extruding the two molding plates 501; after the combination, the joints of the two molding plates 501 are twisted and filled until they are flush with both sides. The same grade of prepreg is used for the twisted wire, and it is required to be fully compacted during filling to avoid depression after curing and molding; the prepreg is continued to be laid on the reinforcing edge strips 502 on both sides of the combined product, and the prepreg is continuously laid. By setting the sliding mounting part 6, it is possible to slide and pressurize the entire part. By sliding the mounting support frame 602, the top pressure laminating sliding shaft 701 is driven to move at the same time. At the same time, the roller frame 703 can be squeezed by the pressure spring 705 to drive the rotating squeezing roller 704 to achieve elastic lamination and edge reinforcement. The number of paving layers is adjusted according to the selected prepreg single layer thickness and the number of parts. After curing, the demoulding top block 202 is driven to be ejected by driving the threaded rod 203, and the demoulding top block and the part are demoulded together. The implementation process is to adopt a rotating driving screw 303 method to drive the ejection driving rack 301 to move. During the movement of the ejection driving rack 301, the driving gear 204 set for driving can be engaged to drive the driving threaded rod 203 to rotate. When the driving threaded rod 203 rotates, the demoulding sliding shaft 201 is driven to rise and fall. When the demoulding sliding shaft 201 rises, the demoulding top block 202 is driven to move at the same time to eject the part.

[0044] Finally, it should be noted that when describing the position of each component and the matching relationship between them, the present invention usually takes one / a pair of components as an example. However, those skilled in the art should understand that such position, matching relationship, etc. are also applicable to other components / other pairs of components.

[0045] The above description is merely an exemplary embodiment of the present invention and is not intended to limit the protection scope of the present invention. The protection scope of the present invention is determined by the appended claims.

Claims

1. A forming die for an I-shaped composite material part, It is characterized in that The invention comprises a forming mould part (1), wherein two forming mould parts (1) are provided, and a row of floating pressing parts (2) are respectively installed on the two forming mould parts (1); an ejection driving part (3) is respectively installed on the two forming mould parts (1); four sliding connecting parts (4) are fixedly connected between the two forming mould parts (1); a workpiece body (5) is connected between the two forming mould parts (1); a sliding mounting part (6) is respectively fixedly connected to the two forming mould parts (1), and a pressing fitting part (7) is respectively slidably connected to the two sliding mounting parts (6); the forming mould part (1) comprises: a mould mounting plate (101), a C-shaped mould block (102) and a sliding mounting hole (103); the mould mounting plate (101) is fixedly connected to the C-shaped mould block (102); a row of sliding mounting holes (103) is provided on the C-shaped mould block (102), and four sliding grooves are respectively provided on the row of sliding mounting holes (103); The floating top pressure member (2) comprises: a demoulding sliding shaft (201), a raised sliding bar (2011) and a demoulding top block (202); the demoulding sliding shaft (201) is fixedly connected with seven raised sliding bars (2011); the demoulding sliding shaft (201) is slidably connected to the sliding mounting hole (103) via the seven raised sliding bars (2011); a demoulding top block (202) is placed on the demoulding sliding shaft (201), and the demoulding top block (202) is embedded in the C-shaped mold block (102); the top of the demoulding top block (202) is flush with the C-shaped mold block (102); The floating top pressure piece (2) further comprises: a driving threaded rod (203) and a driving gear (204); the driving threaded rod (203) is rotatably connected to the C-shaped mold block (102); a demoulding sliding shaft (201) is threadedly connected to the driving threaded rod (203); and the driving gear (204) is fixedly connected to the bottom of the driving threaded rod (203); The sliding connection member (4) comprises: a sliding installation cylinder (401), a sliding installation column (402) and a hydraulic cylinder (403); the sliding installation cylinder (401) is slidably connected to the sliding installation column (402); the sliding installation cylinder (401) is fixedly connected to the mold installation plate (101) at the bottom; the sliding installation column (402) is fixedly connected to the mold installation plate (101) at the top; the hydraulic cylinder (403) is fixedly sleeved on the sliding installation column (402), and the output shaft of the hydraulic cylinder (403) is fixedly connected to the mold installation plate (101); The sliding mounting member (6) comprises: a sliding mounting strip (601) and a mounting support frame (602); the sliding mounting strip (601) is fixedly connected to the sliding mounting cylinders (401) on both sides; the mounting support frame (602) is slidably connected to the sliding mounting strip (601); The top-pressing laminating member (7) comprises: a top-pressing laminating sliding shaft (701), a connecting plate (702) and a roller frame (703); two top-pressing laminating sliding shafts (701) are provided, and the two top-pressing laminating sliding shafts (701) are respectively slidably connected to the mounting support frame (602); the two top-pressing laminating sliding shafts (701) are fixedly connected to the connecting plate (702); and the two top-pressing laminating sliding shafts (701) are fixedly connected to the roller frame (703); The top-pressing laminating component (7) further comprises: a rotating extrusion roller (704), a wire twisting groove (7041) and a pressure spring (705); the rotating extrusion roller (704) is rotatably connected to the roller frame (703); the rotating extrusion roller (704) is provided with a wire twisting groove (7041); and the two top-pressing laminating sliding shafts (701) are respectively provided with a pressure spring (705).

2. A forming die for an I-shaped composite material product as claimed in claim 1, Features: The ejection drive member (3) comprises: an ejection drive rack (301), a rack sliding block (302), a drive screw (303) and a drive column (304); the ejection drive rack (301) is slidably connected to the C-shaped mold block (102), and the ejection drive rack (301) is meshed with a row of drive gears (204); two rack sliding blocks (302) are fixedly connected to the ejection drive rack (301), and the two rack sliding blocks (302) are respectively slidably connected to the C-shaped mold block (102); the drive screw (303) is rotatably connected to the mold mounting plate (101); the drive screw (303) is threadedly connected to the two rack sliding blocks (302); and the end of the drive screw (303) is fixedly connected to the drive column (304).

3. A forming die for an I-shaped composite material product as claimed in claim 2, Features: The workpiece body (5) comprises: a forming plate (501), a reinforcing edge strip (502) and a filling twisted wire (503); two forming plates (501) are provided, and the two forming plates (501) are respectively attached to two C-shaped mold blocks (102); two reinforcing edge strips (502) are attached and connected between the two forming plates (501); and the filling twisted wire (503) is filled between the two forming plates (501).

4. A method for forming a forming mold for an I-shaped composite material product as claimed in claim 3, Features: The steps include: 1) Demolding top block (202) and two C-shaped mold blocks (102) are respectively coated with release agent, and the release agent is applied at least three times, with an interval of more than fifteen minutes between each application; 2) Install the demoulding top block (202) on the two C-shaped mold blocks (102) respectively; 3) Prepreg is laid on two C-shaped mold blocks (102) respectively, and the number of laying layers is adjusted according to the thickness of the selected prepreg layer and the number of parts; 4) After the prepregs of the two C-shaped mold blocks (102) are laid, the hydraulic cylinder (403) is used to drive the combined extrusion positioning; 5) After the assembly, the joints of the two molded plates (501) are filled with twisted wire until they are flush with both sides. The twisted wires are made of prepreg of the same grade system. The filling is required to be fully compacted to avoid depression after curing and molding; 6) Continue to lay prepreg on the reinforcing edge strips (502) on both sides of the assembled product to strengthen the edge strips. The number of laying layers is adjusted according to the thickness of the selected prepreg single layer and the number of parts. 7) After the paving is completed, the rotating squeezing roller (704) is used to compact the profile. After compaction is in place, the top pressing fitting member (7) and the sliding mounting member (6) are removed, and the demoulding cloth, isolation film, breathable felt, vacuum bag, and sealing strip are placed in sequence to seal the bag; 8) After the curing is completed, the demoulding ejector block (202) is driven to be ejected by driving the threaded rod (203), and the demoulding ejector block and the part are demoulded together.

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