High flow basalt fiber composite case compression molding apparatus

Abstract

The application discloses a high-fluidity basalt fiber composite material shell mold pressing forming equipment and relates to the technical field of shell mold pressing. The high-fluidity basalt fiber composite material shell mold pressing forming equipment comprises a frame mechanism, the frame mechanism comprises a bottom plate, a top plate is fixed to the top of the bottom plate, a bottom die mechanism and a top die mechanism are arranged in the frame mechanism, a feeding assembly is arranged on the top plate, the feeding assembly comprises a premixing mechanism, the premixing mechanism comprises a mixing cylinder, inclined outlet pipes are fixed to the bottom outside of the mixing cylinder at equal intervals, a branch pipe assembly is connected to the outer end of each outlet pipe, the branch pipe assembly comprises a dispersion mechanism, the dispersion mechanism comprises a dispersion pipe, an insertion slot is formed in the lower part of the expansion section of the dispersion pipe, an insertion plate is inserted into the insertion slot, the insertion plate is inserted into the dispersion pipe on one side and is embedded with a filter screen matched with the dispersion pipe, the fiber agglomerates are accurately intercepted and dispersed, and the homogeneity of material flow is improved.

Description

Technical Field

[0001] This invention relates to the field of shell molding technology, specifically to a high-flowability basalt fiber composite material shell molding equipment. Background Technology

[0002] As new energy vehicles, rail transit, aerospace, and other fields upgrade towards lightweight, high-performance, and long-life structures, traditional metal shells are increasingly unable to meet the demands due to their heavy weight and poor corrosion resistance. Basalt fiber composite materials, with their advantages of high specific strength, low density, resistance to acid and alkali corrosion, and high temperature resistance, have become a core alternative material for shell structures. Among these, high-flow basalt fiber composite materials, due to their high molding efficiency and adaptability to complex curved shells, are widely used in the manufacture of key components such as battery pack shells, vehicle hydrogen storage tank shells, and rail transit interior shells. Compression molding, with its high molding precision, high production efficiency, and stable mechanical properties, is the mainstream molding method for high-flow basalt fiber composite material shells.

[0003] However, existing compression molding equipment is mostly designed based on low-flow composite materials (such as glass fiber / unsaturated polyester resin) or thick-walled simple structural parts (such as septic tanks and covers). Faced with the controllability of flow of high-flow materials and the precision requirements of thin-walled curved surfaces of shells, technical bottlenecks have gradually been exposed: high-flow resin matrices are prone to fiber agglomeration in the mold cavity.

[0004] Existing equipment mostly adopts a single feed port and straight channel design. The material flows in a jet-like manner in the mold cavity. In high flow velocity areas (such as near the feed port), the fibers are agglomerated by shear force to form fiber knots, resulting in a local decrease in shell strength of more than 30%.

[0005] Patent CN211942227U discloses a molding machine for basalt fiber septic tanks, including a molding frame with a molding structure and a discharge structure inside. The molding structure uses a built-in hydraulic cylinder to move the molding plate, thereby pressurizing the pre-laid basalt fibers until the desired effect is achieved. However, the above technical solution is only suitable for low-flow-rate viscous materials, and will result in an increased overflow rate when dealing with high-flow-rate materials.

[0006] In summary, existing compression molding equipment, due to the lack of fiber agglomeration treatment, is unable to meet the molding requirements of curved thin-walled shells of high-flow basalt fiber composite materials. Developing specialized compression molding equipment with flow control functions has become the key to breaking through the industry's technical bottleneck. Summary of the Invention

[0007] The purpose of this invention is to provide a high-flowability basalt fiber composite material shell compression molding equipment to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a high-flowability basalt fiber composite material shell molding equipment, comprising a frame mechanism, wherein the frame mechanism includes a bottom plate, and a top plate is fixedly connected above the bottom plate; The frame mechanism includes a bottom mold mechanism and a top mold mechanism. The top plate is equipped with a material conveying assembly for controlling the flow of materials; The feeding assembly includes a premixing mechanism for mixing materials. The premixing mechanism includes a mixing cylinder fixedly embedded in the top plate. The bottom of the mixing cylinder is tapered inward. Inclined outlet pipes are fixedly and evenly connected to the outer side of the bottom of the mixing cylinder at equal intervals. The outlet pipes are vertically connected to the side wall of the mixing cylinder. Each of the outlet pipes is connected to a branch pipe assembly for processing materials at its outer end; The distribution assembly includes a dispersion mechanism for dispersing fibers. The dispersion mechanism includes a dispersion tube that expands outward in the middle, with interface grooves for docking at both ends of the dispersion tube. A through slot is provided at the lower part of the outward expansion section of the dispersion tube, and an insert plate is adapted to be inserted into the slot. One side of the insert plate is inserted into the dispersion tube and fitted with a filter screen adapted to the dispersion tube. The other side of the insert plate extends out of the dispersion tube. Baffles for limiting the position are fixedly connected to both ends of the insert plate. A connector is fixedly docked to the interface groove at the lower end, and a material tube is fixedly connected to the lower end of the connector. A flow rate mechanism connects the dispersion mechanism and the premixing mechanism.

[0009] As a preferred technical solution of the present invention, the bottom mold mechanism includes a bottom mold with a fixedly connected bottom plate, and injection grooves are provided through all four sides of the mold cavity of the bottom mold, with an injection component connected to the outer end of each injection groove. The injection assembly includes an injection tube that is fixedly connected to the bottom mold, and a connecting tube that connects to the injection tube is fixedly connected to the upper side of the inner end of the injection tube. The outer end of the injection tube is fixedly connected to a first cylinder, the output end of the first cylinder is fixedly connected to a first plug rod adapted to insert into the injection tube, and the inner end of the first plug rod is fixedly connected to a second plug rod adapted to insert into the injection groove.

[0010] As a preferred embodiment of the present invention, a top mold mechanism is disposed directly above the bottom mold mechanism; The top mold mechanism includes a top mold, and a second cylinder is fixedly connected to each of the four corners of the upper surface of the top mold. The tailstock of the second cylinder is fixedly inserted into the top plate. The lower part of the top mold has a cross-shaped first air groove, and the upper side of the middle of the first air groove has a second air groove; an air pump connected to the second air groove is fixedly installed in the middle of the upper surface of the top mold; pistons are adapted to be inserted into the outer ends of the cross-shaped first air groove, and the outer ends of the pistons are fixedly connected to the support plates embedded in the top mold.

[0011] As a preferred embodiment of the present invention, the inner bottom of the mixing cylinder is fixedly connected to a housing for guiding materials to the outlet pipe. A first motor is fixedly embedded in the inner bottom of the housing. The output shaft of the first motor is fixedly connected to a shaft that passes through the housing. Agitator blades adapted to the housing and the mixing cylinder are fixedly and evenly connected at equal intervals on the outer side of the shaft.

[0012] As a preferred embodiment of the present invention, a horizontally placed rotating shaft is movably inserted into the upper part of the outer expansion section of the dispersion tube, and a second gear is fixedly connected to one end of the rotating shaft; The outer side of a section of the rotating shaft inside the dispersion tube is fixedly connected to a spirally arranged flexible striking block, the outer end of which contacts the filter screen.

[0013] The flow velocity mechanism includes a bent pipe, one end of which is fixedly connected to the outlet pipe, and the other end of which is fixedly inserted into the interface groove opened at the upper end of the dispersion pipe. A horizontally placed plate shaft is movably inserted at one end of the bend near the dispersion tube. One end of the plate shaft is fixedly connected to a first gear facing the second gear. A valve plate is fixedly connected to the section of the plate shaft inside the bend, and the valve plate is adapted to the bend.

[0014] A switching mechanism for linkage control is provided between the flow velocity mechanism and the dispersion mechanism. The switching mechanism includes an electric rail, and a connecting column is fixedly connected between the electric rail and the bend. A second motor is slidably inserted into the electric rail. The output end of the second motor is fixedly connected to a third gear positioned between the first gear and the second gear. The third gear is adapted to mesh with the first gear and the second gear. A small column is fixedly connected to the upper side of the tailstock of the second motor. A cover is fixedly connected to the end of the small column away from the second motor. A pressure pad that is positioned on the upper side of the first gear is fixedly embedded on the inner side of the cover.

[0015] Compared with the prior art, the beneficial effects of the present invention are: (1) The high-flowability basalt fiber composite material shell molding equipment makes the fiber clusters tear and dispersed under the combined action of shearing, extrusion and turbulence, thereby reducing the size of the fiber clusters, improving the dispersion uniformity, effectively avoiding the weak area of ​​strength caused by local fiber accumulation during subsequent mold cavity molding, reducing agglomeration defects, and significantly improving the dispersion uniformity of fiber and resin.

[0016] (2) High fluidity basalt fiber composite material shell molding equipment, the conical mixing cylinder cavity wall has a shrinking trend. As the material rotates with the stirring blade, it flows along the conical wall to the outlet pipe. The flow cross section gradually decreases, the flow velocity increases, and the shear force is simultaneously enhanced. This achieves a step-by-step treatment of initial dispersion at the inlet, deep dispersion in the middle section, and homogenization at the outlet, thereby strengthening the dispersion effect.

[0017] (3) High fluidity basalt fiber composite material shell molding equipment, the conical structure of the mixing cylinder avoids the flow dead angle of right angle or flat bottom cavity, and by setting the inner bottom of the mixing cylinder, the material is accurately guided to the outlet pipe, ensuring that all materials can be stirred by the stirring action of the stirring blade, improving the dispersion coverage rate and effectively eliminating the flow dead angle.

[0018] (4) The high-flowability basalt fiber composite material shell compression molding equipment can evenly distribute the pre-dispersed homogeneous material flow along the circumference of the bottom mold cavity, completely avoiding the molding scrap caused by the overflow of the first filling area and the lack of material in the later filling area of ​​the high-flowability resin, and effectively eliminating the time difference of mold cavity filling.

[0019] (5) High fluidity basalt fiber composite material shell molding equipment: After the pre-dispersed fiber resin mixture is evenly distributed through the outlet pipe, the fiber concentration deviation of the material flow in each branch component channel is small. After the material flow enters the bottom mold cavity, there is no local fiber accumulation or resin enrichment phenomenon, which ensures uniform distribution of fiber throughout the entire area and improves the consistency of shell mechanical properties.

[0020] (6) High-flowability basalt fiber composite material shell molding equipment reduces the time difference between material flow and each area of ​​the bottom mold cavity, reduces the overflow rate in the low curvature area, reduces the material shortage defect rate in the high curvature area, completely eliminates the molding scrap caused by the filling time difference of the curved shell, solves the problem of asynchronous material flow filling, and accurately matches the curvature resistance difference of the curved surface.

[0021] (7) High-flowability basalt fiber composite material shell molding equipment, the flexible impact block can break up the agglomerates without damaging the fibers, ensuring that they pass through the filter screen into the subsequent flow channel, improving the fiber agglomerate throughput, reducing the local strength weakness defect rate caused by agglomerates in the bottom mold cavity, accurately intercepting and breaking up fiber agglomerates, and improving the overall homogenization of material flow.

[0022] (8) High-flowability basalt fiber composite material shell molding equipment reduces the clogging rate of the filter screen, extends the cleaning interval of the filter screen, reduces the interruption time of material flow, ensures the continuity of molding, and uses dynamic vibration to prevent clogging and improve the continuous stability of material flow.

[0023] (9) High-flow basalt fiber composite material shell molding equipment improves the efficiency of filter screen replacement, reduces downtime caused by filter screen replacement, significantly ensures the continuity of batch molding of high-flow basalt fiber composite material shell, greatly shortens replacement time, and improves equipment maintenance efficiency.

[0024] (10) High fluidity basalt fiber composite material shell molding equipment avoids local solidification caused by material flow stagnation, ensures continuous connection of the process chain of gradient flow control and fiber dispersal, reduces the interruption rate of bottom mold cavity filling, improves the stability of molding cycle, realizes seamless switching of dual functions of flow rate adjustment and dispersal anti-blocking, and ensures process continuity.

[0025] (11) A high-flowability basalt fiber composite material shell molding equipment, by extending the first cylinder to drive the first and second blocking rods to push inward, the first blocking rod to block the connecting pipe and the second blocking rod to block the injection groove, thereby forming a complete mold cavity shape and improving the shell molding quality.

[0026] (12) The high-flowability basalt fiber composite material shell molding equipment has a stronger connection between the shell and the top mold when the top mold is pulled out from the bottom mold by the second cylinder contraction, so that it can be moved out of the bottom mold mechanism together with the top mold mechanism. Then, by switching the air pump back to the suction state, the support plate is returned to its original position. At this time, the shell can also be easily removed from the top mold, improving the convenience of mold removal. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the framework mechanism of the present invention; Figure 3 This is a schematic diagram of the bottom mold mechanism of the present invention; Figure 4 For the present invention Figure 3 Enlarged view of point A; Figure 5 This is a schematic diagram of the top mold mechanism of the present invention; Figure 6 This is a schematic diagram of the material conveying assembly of the present invention; Figure 7 This is a schematic diagram of the premixing mechanism of the present invention; Figure 8 This is a schematic diagram of the first motor of the present invention; Figure 9 This is a schematic diagram of the pipe assembly of the present invention; Figure 10 This is a schematic diagram of the flow velocity mechanism of the present invention; Figure 11 This is a schematic diagram of the dispersing mechanism of the present invention; Figure 12This is a schematic diagram of the insert plate of the present invention; Figure 13 This is a schematic diagram of the switching mechanism of the present invention; Figure 14 This is a schematic diagram of the pressure pad of the present invention.

[0028] In the diagram: 1. Frame mechanism; 101. Base plate; 102. Top plate; 2. Bottom mold mechanism; 201. Bottom mold; 202. Injection groove; 203. Injection pipe; 204. Connecting pipe; 205. First cylinder; 206. First blocking rod; 207. Second blocking rod; 3. Top mold mechanism; 301. Top mold; 302. Second cylinder; 303. First air groove; 304. Second air groove; 305. Air pump; 306. Piston; 307. Support plate; 4. Premixing mechanism; 401. Mixing cylinder; 402. Outlet pipe; 403. Machine housing; 404. First motor; 405. Machine shaft; 406. Agitator blade; 5. Flow rate mechanism; 501. Bend; 502. Valve plate; 503. Plate shaft; 504. First gear; 6. Dispersion mechanism; 601. Dispersion tube; 602. Interface groove; 603. Slot; 604. Insert plate; 605. Filter screen; 606. Baffle; 607. Connector; 608. Material pipe; 609. Rotating shaft; 610. Second gear; 611. Flexible impact block; 7. Switching mechanism; 701. Electric rail; 702. Connecting column; 703. Second motor; 704. Third gear; 705. Small column; 706. Cover; 707. Pressure pad. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Example: Please refer to Figure 1 , Figure 2 , Figure 6 , Figure 7 , Figure 9 , Figure 11 , Figure 12 A high-flowability basalt fiber composite material shell molding equipment includes a frame mechanism 1, which includes a base plate 101 and a top plate 102 fixedly connected above the base plate 101. The frame mechanism 1 is equipped with a bottom mold mechanism 2 and a top mold mechanism 3; A material conveying assembly for controlling material flow is provided on the top plate 102; The feeding assembly includes a premixing mechanism 4 for mixing materials. The premixing mechanism 4 includes a mixing cylinder 401 fixedly embedded in the top plate 102. The bottom of the mixing cylinder 401 is concave and tapered. Inclined outlet pipes 402 are fixedly and uniformly connected to the outer side of the bottom of the mixing cylinder 401 at equal intervals. The outlet pipes 402 and the side wall of the mixing cylinder 401 are vertically connected. Each outlet pipe 402 has a branch pipe assembly for material handling connected to its outer end; The distribution assembly includes a dispersion mechanism 6 for dispersing fibers. The dispersion mechanism 6 includes a dispersion tube 601 that expands outward in the middle. Both ends of the dispersion tube 601 are provided with interface grooves 602 for docking. A through slot 603 is provided at the lower part of the outward expansion section of the dispersion tube 601. An insert plate 604 is adapted to be inserted into the slot 603. One side of the insert plate 604 is inserted into the dispersion tube 601 and is fitted with a filter screen 605 adapted to the dispersion tube 601. The other side of the insert plate 604 extends out of the dispersion tube 601. Both ends of the insert plate 604 are fixedly connected with baffles 606 for limiting movement. The interface groove 602 at the lower end is fixedly docked with a connector 607. The lower end of the connector 607 is fixedly connected to a feed tube 608. A flow velocity mechanism 5 connects the dispersing mechanism 6 and the premixing mechanism 4.

[0031] Please see Figure 3 , Figure 4 The bottom mold mechanism 2 includes a bottom mold 201 that is fixedly connected to the bottom plate 101. The bottom mold 201 has injection grooves 202 that are opened through all four sides of the mold cavity. Each injection groove 202 has an injection component connected to its outer end. The injection assembly includes an injection pipe 203 that is fixedly connected to the bottom mold 201, and a connecting pipe 204 that is fixedly connected to the upper side of the inner end of the injection pipe 203 and the docking pipe 608. A first cylinder 205 is fixedly connected to the outer end of the injection tube 203. A first blocking rod 206 adapted to insert into the injection tube 203 is fixedly connected to the output end of the first cylinder 205. A second blocking rod 207 adapted to insert into the injection groove 202 is fixedly connected to the inner end of the first blocking rod 206. Initially, the first cylinder 205 retracts, and the connecting tube 204 and the injection groove 202 are connected. During cooling and plasticization, the first cylinder 205 extends, the first blocking rod 206 blocks the injection tube 203, and the second blocking rod 207 blocks the injection groove 202.

[0032] Please see Figure 1 , Figure 5 The top mold mechanism 3 is positioned directly above the bottom mold mechanism 2. The top mold mechanism 3 includes a top mold 301, and a second cylinder 302 is fixedly connected to the four corners of the upper surface of the top mold 301. The tail of the second cylinder 302 is fixedly inserted into the top plate 102. A cross-shaped first air groove 303 is provided through the lower part of the top mold 301, and a second air groove 304 is provided through the upper side of the middle part of the first air groove 303. An air pump 305 connected to the second air groove 304 is fixedly installed in the middle of the upper surface of the top mold 301. A piston 306 is adapted to be inserted into the outer end of the cross-shaped first air groove 303, and the outer end of the piston 306 is fixedly connected to the support plate 307 embedded in the top mold 301. Initially, the air pump 305 is in the suction state, and the support plate 307 is flush with the lower outer surface of the top mold 301. When demolding, the air pump 305 changes to the blowing state to push the support plate 307 outward, thereby increasing the connection between the top mold mechanism 3 and the housing.

[0033] Please see Figure 7 , Figure 8 The inner bottom of the mixing cylinder 401 is fixedly connected to a housing 403 for guiding materials to the outlet pipe 402. The inner bottom of the housing 403 is fixedly embedded with a first motor 404. The output shaft of the first motor 404 is fixedly connected to a shaft 405 that passes through the housing 403. The outer side of the shaft 405 is fixedly connected with agitator blades 406 that are adapted to the housing 403 and the mixing cylinder 401 at equal intervals. The agitator blades 406 are lower than the upper port of the mixing cylinder 401.

[0034] Please see Figure 9 , Figure 10 , Figure 11 , Figure 13 , Figure 14 A horizontally placed rotating shaft 609 is movably inserted into the upper part of the outer expansion section of the dispersion tube 601, and a second gear 610 is fixedly connected to one end of the rotating shaft 609. A spirally arranged flexible striking block 611 is fixedly connected to the outer side of a section of the rotating shaft 609 inside the dispersion tube 601, and the outer end of the flexible striking block 611 contacts the filter screen 605.

[0035] The flow velocity mechanism 5 includes a bend 501, one end of which is fixedly connected to the outlet pipe 402, and the other end of which is fixedly inserted into the interface groove 602 opened at the upper end of the dispersion pipe 601. A horizontally placed plate shaft 503 is movably inserted at one end of the bend 501 near the dispersion tube 601. One end of the plate shaft 503 is fixedly connected to a first gear 504 facing the second gear 610. A valve plate 502 is fixedly connected to a section of the plate shaft 503 inside the bend 501. The valve plate 502 is adapted to the bend 501.

[0036] A switching mechanism 7 for linkage control is provided between the flow velocity mechanism 5 and the dispersion mechanism 6. The switching mechanism 7 includes an electric rail 701, and a connecting column 702 is fixedly connected between the electric rail 701 and the bend 501. A second motor 703 is slidably inserted into the electric rail 701. The output end of the second motor 703 is fixedly connected to a third gear 704, which is positioned between the first gear 504 and the second gear 610. The third gear 704 is adapted to mesh with the first gear 504 and the second gear 610. A small column 705 is fixedly connected to the upper side of the tailstock of the second motor 703. A cover 706 is fixedly connected to the end of the small column 705 away from the second motor 703. A pressure pad 707, which is positioned on the upper side of the first gear 504, is fixedly embedded in the inner side of the cover 706. When the third gear 704 and the second gear 610 mesh, the pressure pad 707 presses tightly against the first gear 504.

[0037] The working principle of this invention is as follows: When the first motor 404 drives the machine shaft 405 to rotate the agitator 406, the agitator 406 forms a periodic fluid shear field in the conical mixing cylinder 401. The high-speed rotating agitator 406 generates radial shear force on the high-flow resin. At the same time, the cavity wall of the conical mixing cylinder 401 forms axial constraint on the material, causing the fiber clusters to be torn and dispersed under the combined action of shearing, extrusion, and turbulence. This reduces the size of the fiber clusters, improves the dispersion uniformity, effectively avoids weak areas caused by local fiber accumulation during subsequent mold cavity molding, reduces agglomeration defects, and significantly improves the dispersion uniformity of fibers and resin.

[0038] The conical mixing cylinder 401 has a contracting wall. As the material rotates with the agitator 406, it flows along the conical wall toward the outlet pipe 402. The flow cross section gradually decreases, causing the flow velocity to increase and the shear force to increase simultaneously. This achieves a stepped treatment of initial dispersion at the inlet, deep dispersion in the middle section, and homogenization at the outlet, thus enhancing the dispersion effect.

[0039] The conical structure of the mixing cylinder 401 avoids dead zones in right-angled or flat-bottomed cavities. Furthermore, by setting the casing 403 at the bottom of the mixing cylinder 401, the material is accurately guided to the outlet pipe 402, ensuring that all materials can be stirred by the agitator blades 406, thereby improving the dispersion coverage and effectively eliminating dead zones in the flow.

[0040] The outlet pipes 402, which are fixed at equal intervals on the bottom side of the mixing cylinder 401, together with the branch pipe assembly, form a multi-channel synchronous feeding structure. This structure can evenly distribute the pre-dispersed homogeneous material flow along the circumference of the bottom mold 201 cavity. The time difference between the material flow of each channel reaching any area of ​​the bottom mold 201 cavity is controlled within 0.5s, which completely avoids the molding scrap caused by the overflow of high-flow resin in the first-filled area and the lack of material in the later-filled area, and effectively eliminates the filling time difference of the mold cavity.

[0041] After the pre-dispersed fiber-resin mixture is evenly distributed through the outlet pipe 402, the fiber concentration deviation of the material flow in each branch component channel is controlled within ±3%. After the material flow enters the bottom mold 201 mold cavity, there is no local fiber accumulation or resin enrichment, ensuring uniform fiber distribution throughout the entire area and improving the consistency of shell mechanical properties.

[0042] In the high curvature areas of curved shells (such as corners and deep arc surfaces), the material flow path is tortuous and the flow resistance is high. By having the second motor 703 slide along the electric rail 701 to drive the third gear 704 to mesh with the first gear 504, the opening degree of the valve plate 502 can be adjusted (for example, the opening degree of the valve plate 502 in the high curvature area is adjusted to 80%-100%, and the flow rate is increased to 12-15m / s; in the low curvature area, it is adjusted to 30%-50%, and the flow rate is reduced to 5-8m / s). This allows for real-time matching of the flow resistance in different curvature areas. It reduces the time difference between the material flow reaching different areas of the bottom mold 201 cavity, reduces the overflow rate in the low curvature area, reduces the material shortage defect rate in the high curvature area, completely eliminates the molding scrap caused by the filling timing difference of the curved shell, solves the problem of asynchronous material flow filling, and accurately matches the differences in curvature resistance of the curved surface.

[0043] As the core of the filter, the filter screen 605 can accurately intercept the fiber agglomerates remaining after pre-dispersion, preventing them from entering the bottom mold 201 cavity and forming local defects. At the same time, the second motor 703 slides down along the electric rail 701, driving the third gear 704 to mesh with the second gear 610. Through the rotating shaft 609, the flexible striking block 611 rotates on the upper side of the filter screen 605. The flexible striking block 611 can break the agglomerates into dispersed units with a diameter of <100μm without damaging the fibers, ensuring that they pass through the filter screen 605 into the subsequent flow channel, improving the fiber agglomerate throughput, reducing the local strength weakness defect rate of the bottom mold 201 cavity caused by agglomerates, accurately intercepting and breaking down fiber agglomerates, and improving the overall homogenization of the material flow.

[0044] When the flexible striking block 611 rotates, it makes flexible contact with the surface of the filter screen 605, causing the filter screen 605 to vibrate slightly. On the one hand, the vibration loosens the short fibers stuck in the filter pores of the filter screen 605, preventing clogging; on the other hand, it reduces the adsorption and accumulation of fibers on the surface of the filter screen 605, extending the filtration cycle. This reduces the clogging rate of the filter screen 605, extends the cleaning interval of the filter screen 605, reduces the interruption time of material flow, ensures the continuity of molding, and improves the continuous stability of material flow through dynamic vibration to prevent clogging.

[0045] The dispersion tube 601 is engaged with the insertion plate 604 via the slot 603. The filter screen 605 can be pushed out of the dispersion tube 601 simply by pushing the part of the insertion plate 604 that extends out of the dispersion tube 601. After replacing the new filter screen 605, the insertion plate 604 is reset to complete the installation. The entire process takes less than 5-8 minutes, which improves the replacement efficiency of the filter screen 605, reduces downtime caused by the replacement of the filter screen 605, significantly ensures the continuity of batch molding of high-flowability basalt fiber composite material shells, greatly shortens the replacement time, and improves equipment maintenance efficiency.

[0046] When the second motor 703 moves upward along the electric rail 701, the third gear 704 meshes with the first gear 504. The opening and closing angle of the valve plate 502 is adjusted according to the condition of the bottom mold 201 cavity. Then, the second motor 703 returns to its original position, at which point the third gear 704 meshes with the second gear 610. The cover 706 presses against the first gear 504 through the pressure pad 707 inside, thus fixing the first gear 504 in place. A single movement of the second motor 703 along the electric rail 701 can complete the meshing of the third gear 704 with the first gear 504 to adjust the flow rate. Then, the second motor 703 returns to its original position, causing the third gear 704 to mesh with the second gear 610 to start the switching of the dispersing function. The switching process takes less than 3-5 seconds. This completely avoids local solidification caused by material flow stagnation, ensures the continuous connection of the gradient flow control and fiber dispersing process chain, reduces the interruption rate of bottom mold 201 cavity filling, improves the stability of the molding cycle, and achieves seamless switching between flow rate adjustment and dispersing anti-blocking functions, ensuring process continuity.

[0047] The material is conveyed through the material pipe 608 to the injection assembly connected to the outer end of the injection groove 202. The material is evenly injected into the mold cavity of the bottom mold 201 through the connection between the injection pipe 203 and the injection groove 202. After the mold cavity of the bottom mold 201 is filled, the first cylinder 205 extends to drive the first blocking rod 206 and the second blocking rod 207 to push inward. The first blocking rod 206 blocks the connecting pipe 204 and the second blocking rod 207 blocks the injection groove 202, thereby forming a complete mold cavity shape and improving the molding quality of the shell.

[0048] During molding, the air pump 305 remains in suction mode, which allows the support plate 307 to be flatly embedded into the surface of the top mold 301. During demolding, the air pump 305 switches to blowing mode, pushing the piston 306 and the support plate 307 outward through the second air groove 304 and the first air groove 303. The outwardly pushed support plate 307 abuts against the formed shell. When the top mold 301 is pulled out of the bottom mold 201 by the retraction of the second cylinder 302, the connection between the shell and the top mold 301 is stronger, so that it can be moved out of the bottom mold mechanism 2 along with the top mold mechanism 3. Then, by switching the air pump 305 back to suction mode, the support plate 307 returns to its original position. At this time, the shell can also be easily removed from the top mold 301, improving the convenience of demolding.

[0049] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-flowability basalt fiber composite material shell molding equipment, including a frame mechanism (1), the frame mechanism (1) including a bottom plate (101), and a top plate (102) fixedly connected above the bottom plate (101). The frame mechanism (1) is provided with a bottom mold mechanism (2) and a top mold mechanism (3). Its features are: The top plate (102) is provided with a material conveying assembly for controlling the flow of materials; The feeding assembly includes a premixing mechanism (4) for mixing materials. The premixing mechanism (4) includes a mixing cylinder (401) fixedly embedded in the top plate (102). The bottom of the mixing cylinder (401) is tapered inward. Inclined outlet pipes (402) are fixedly and uniformly connected to the outer side of the bottom of the mixing cylinder (401) at equal intervals. The outlet pipes (402) and the side wall of the mixing cylinder (401) are vertically connected. Each of the outlet pipes (402) has a branch pipe assembly for processing materials connected to its outer end; The tube assembly includes a dispersion mechanism (6) for dispersing fibers. The dispersion mechanism (6) includes a dispersion tube (601) that expands outward in the middle. Both ends of the dispersion tube (601) are provided with interface grooves (602) for docking. The lower part of the outward expansion section of the dispersion tube (601) is provided with a through slot (603). An insert plate (604) is adapted to be inserted into the slot (603). One side of the insert plate (604) is inserted into the dispersion tube (601) and a filter screen (605) adapted to the dispersion tube (601) is embedded therein. The other side of the insert plate (604) extends out of the dispersion tube (601). Both ends of the insert plate (604) are fixedly connected with baffles (606) for limiting. The interface groove (602) at the lower end is fixedly docked with a connector (607). The lower end of the connector (607) is fixedly connected to a material tube (608). A flow rate mechanism (5) is connected between the dispersing mechanism (6) and the premixing mechanism (4); The mixing cylinder (401) has a housing (403) fixedly connected to its inner bottom for guiding materials to the outlet pipe (402). A first motor (404) is fixedly embedded in the inner bottom of the housing (403). The output shaft of the first motor (404) is fixedly connected to a shaft (405) that passes through the housing (403). Agitator blades (406) adapted to the housing (403) and the mixing cylinder (401) are fixedly connected at equal intervals on the outer side of the shaft (405). The upper part of the outer expansion section of the dispersion tube (601) is movably inserted with a horizontally placed rotating shaft (609), and one end of the rotating shaft (609) is fixedly connected to a second gear (610). The rotating shaft (609) is fixedly connected to a spirally arranged flexible striking block (611) on the outer side of a section inside the dispersion tube (601), and the outer end of the flexible striking block (611) contacts the filter screen (605). The flow velocity mechanism (5) includes a bend (501), one end of which is fixedly connected to the outlet pipe (402), and the other end of which is fixedly inserted into the interface groove (602) opened at the upper end of the dispersion pipe (601). A horizontally placed plate shaft (503) is movably inserted at one end of the bend (501) near the dispersion tube (601). One end of the plate shaft (503) is fixedly connected to a first gear (504) facing the second gear (610). A valve plate (502) is fixedly connected to a section of the plate shaft (503) inside the bend (501). The valve plate (502) is adapted to the bend (501). A switching mechanism (7) for linkage control is provided between the flow rate mechanism (5) and the dispersion mechanism (6). The switching mechanism (7) includes an electric rail (701), and a connecting column (702) is fixedly connected between the electric rail (701) and the bend (501). A second motor (703) is slidably inserted into the electric rail (701). The output end of the second motor (703) is fixedly connected to a third gear (704) positioned between the first gear (504) and the second gear (610). The third gear (704) is adapted to mesh with the first gear (504) and the second gear (610). A small column (705) is fixedly connected to the upper side of the tailstock of the second motor (703). A cover (706) is fixedly connected to the end of the small column (705) away from the second motor (703). A pressure pad (707) is fixedly embedded on the inner side of the cover (706) and is positioned on the upper side of the first gear (504).

2. The high-flowability basalt fiber composite material shell compression molding equipment according to claim 1, characterized in that: The bottom mold mechanism (2) includes a bottom mold (201) with a fixedly connected bottom plate (101). The bottom mold (201) has injection grooves (202) through all four sides of the mold cavity. Each injection groove (202) has an injection component connected to its outer end. The injection assembly includes an injection pipe (203) that is fixedly connected to the bottom mold (201), and a connecting pipe (204) that is fixedly connected to the upper side of the inner end of the injection pipe (203) to the connecting pipe (608). The outer end of the injection tube (203) is fixedly connected to a first cylinder (205), the output end of the first cylinder (205) is fixedly connected to a first plug rod (206) adapted to insert into the injection tube (203), and the inner end of the first plug rod (206) is fixedly connected to a second plug rod (207) adapted to insert into the injection groove (202).

3. The high-flowability basalt fiber composite material shell compression molding equipment according to claim 1, characterized in that: The top mold mechanism (3) is positioned directly above the bottom mold mechanism (2); The top mold mechanism (3) includes a top mold (301), and a second cylinder (302) is fixedly connected to the four corners of the upper surface of the top mold (301). The tail of the second cylinder (302) is fixedly inserted into the top plate (102). The lower part of the top mold (301) is provided with a cross-shaped first air groove (303), and the upper side of the middle part of the first air groove (303) is provided with a second air groove (304); an air pump (305) communicating with the second air groove (304) is fixedly installed in the middle of the upper surface of the top mold (301); a piston (306) is adapted to be inserted into the outer end of the cross-shaped first air groove (303), and the outer end of the piston (306) is fixedly connected to a support plate (307) embedded in the top mold (301).

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