Three-dimensional flow fan curved blade multi-point forming die

By designing a multi-point forming mold for the curved blades of a three-dimensional flow fan, and employing precise molding at six points and synchronous bending, the problem of complex operation of the casting mold for three-dimensional flow fan blades was solved, thereby improving the forming accuracy and processing efficiency of the blades.

CN121082860BActive Publication Date: 2026-05-12JIANGSU DIMUSI VENTILATION EQUIP MFG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
JIANGSU DIMUSI VENTILATION EQUIP MFG CO LTD
Filing Date
2025-09-03
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

In the existing technology, the casting mold operation of three-dimensional flow fan blades is complicated, the control of the points is difficult, and the cast blades are difficult to bend according to the cross section of the wheel body.

Method used

Design a multi-point forming mold for curved blades of a three-dimensional flow fan, including a mold support mechanism, a molding mechanism, a blade shaping mechanism, a forming mechanism, and a mold opening and closing mechanism. Through precise molding at six points and synchronous bending processing, the blade can be rapidly formed and bent.

Benefits of technology

It simplifies mold operation, improves blade forming accuracy and processing efficiency, reduces operational complexity, and enables efficient blade bending.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The application relates to the technical field of three-dimensional flow fan blade casting, in particular to a three-dimensional flow fan curved blade multi-point forming die, which comprises a die supporting mechanism, a die pressing mechanism installed on the die supporting mechanism, a blade shaping mechanism installed on the die pressing mechanism, a forming mechanism installed in the die pressing mechanism and a die opening and closing mechanism installed on the die pressing mechanism; the die supporting mechanism comprises a base and two first bolts inserted into the base. The die supporting mechanism is installed on the workbench, the forming mechanism is installed on the die supporting mechanism, six point positions of the forming mechanism are used to replace a transmission multi-point position structure, only longitudinal extrusion force needs to be applied to the forming mechanism, selected plate materials can be accurately die pressed, and the preliminarily die pressed sheet materials can be quickly formed, so that the problem of complex operation of a traditional multi-point position die is avoided.
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Description

Technical Field

[0001] This invention relates to the field of three-dimensional flow fan blade casting technology, specifically a multi-point forming mold for curved surface blades of a three-dimensional flow fan. Background Technology

[0002] The three-dimensional flow impeller is a relatively advanced type of impeller. It is considered advanced because its working principle is in line with energy conservation and consumption reduction. The blades in the three-dimensional flow impeller are different from conventional blades. The blades of the three-dimensional flow fan are wider and have less vortex, resulting in strong flow. At the same time, the blade diameter is small and the outlet width is increased, which can effectively reduce the impact of separation flow, vortex, secondary flow, etc. on aerodynamic performance.

[0003] Currently, the impeller of a three-dimensional flow fan is welded together from the wheel body and the arc-shaped blades. However, the blades of a three-dimensional flow fan have a complex structure, so they are often made by casting. However, the multi-point casting method makes the module operation complex and the control of the points difficult. Moreover, it is difficult to bend the cast blades according to the cross-sectional structure of the wheel body.

[0004] In view of this, a multi-point forming mold for curved blades of a three-dimensional flow fan was designed to solve the above problems. Summary of the Invention

[0005] The present invention aims to solve one of the technical problems existing in the prior art or related technologies.

[0006] Therefore, the technical solution adopted in this invention is as follows:

[0007] A multi-point forming mold for curved blades of a three-dimensional flow fan includes a mold support mechanism, a molding mechanism mounted on the mold support mechanism, a blade shaping mechanism mounted on the molding mechanism, a forming mechanism mounted inside the molding mechanism, and a mold opening and closing mechanism mounted on the molding mechanism. The mold support mechanism includes a base and two first bolts inserted into the base. The forming mechanism includes two positioning plates and two guide rods, a first curved mold positioned on the top of the base and fixed outside the two first bolts, a bottom first corner mold and a bottom second corner mold positioned at both ends of the first curved mold, a top second corner mold inserted into the bottom first corner mold, and a top first corner mold inserted into the bottom second corner mold. The top first corner mold and the top second corner mold are further specified. A second bending die is movably installed inside the corner die; two positioning plates are respectively fixedly installed on the bottom first corner die and the bottom second corner die, and two guide rods are respectively fixedly installed inside the two positioning plates; the molding mechanism includes a bottom clamp installed at the bottom of the first bending die, a bottom support plate fixedly installed on the bottom clamp, a suspension fixedly installed inside the bottom support plate, a top support plate movably installed outside the suspension, and a top clamp fixedly installed at the bottom of the top support plate, and the second bending die is fixedly installed inside the top clamp, and the first bending die is fixedly installed inside the bottom clamp; two sets of blade shaping mechanisms are used to bend the blades after die casting; the mold opening and closing mechanism is used to control the opening and closing of the forming mechanism, and at the same time to supply power to the two sets of blade shaping mechanisms.

[0008] In a preferred embodiment, the present invention may be further configured as follows: the blade shaping mechanism includes an end rod fixedly installed in the base and horizontally positioned, a load-bearing plate fixedly installed at the outer end of the end rod, a fixed outer plate movably installed on the top of the load-bearing plate, four auxiliary rail plates fixedly installed in the four corners of the fixed outer plate, and a wheel fixedly installed on the outside of the four auxiliary rail plates.

[0009] The mold support mechanism also includes two bearings installed inside the base and two linkage shafts installed inside the two bearings.

[0010] The linkage shaft consists of a shaft, a deflection gear, and a gear, with the gear adapted to mesh with the teeth on the outside of the wheel disc.

[0011] In a preferred embodiment, the present invention may be further configured as follows: the mold opening and closing mechanism includes a clamp mounted on the base plate, a second hydraulic component fixedly mounted inside the clamp, a housing mounted on the bottom end of the hydraulic rod inside the second hydraulic component, a dual-axis motor fixedly mounted inside the housing, a lead screw movably mounted inside the clamp, an outer frame fixedly mounted on the top of the suspension, and two third bolts inserted into the outer frame, wherein the top end of the lead screw is movably mounted inside the outer frame;

[0012] A booster plate is movably mounted on the threaded section of the lead screw, and a lever arm is movably mounted on the outer end of the booster plate. A positioning component is movably mounted on the top of the lever arm, and a plug rod is inserted into the positioning component and the lever arm.

[0013] In a preferred embodiment, the present invention may be further configured such that: the mold support mechanism further includes a first hydraulic component fixedly installed inside the base, a clamp installed on the first hydraulic component, two traction rods movably installed at both ends of the clamp, and two pull plates movably installed on the two traction rods, wherein the outer end of the guide rod is movably installed on the top end of the pull plate.

[0014] In a preferred embodiment, the present invention may be further configured such that: the molding mechanism further includes two pads and two clips, and the two clips are respectively attached to the outer ends of the bottom support plate and the top support plate, and two second bolts are inserted into the inside of the clips;

[0015] The two pads are respectively fixedly installed on the first and second curved molds.

[0016] In a preferred embodiment, the present invention can be further configured such that the suspension has an overall U-shaped structure, and two springs are movably mounted on the suspension.

[0017] The spring is supported between the bottom support plate and the top support plate.

[0018] In a preferred embodiment, the present invention may be further configured as follows: a pad is fixedly installed at the bottom of the base plate, a transmission component is movably installed at the outer end of the pad, an auxiliary component is movably installed at the inner end of the pad, and a chain is connected to the transmission component and the auxiliary component.

[0019] The auxiliary component is adapted to mesh with the deflection gear.

[0020] In a preferred embodiment, the present invention can be further configured such that a T-shaped column head is fixedly installed in the middle of the outer side of the fixed outer plate, and a guide rod is adapted to penetrate into the T-shaped column head.

[0021] In a preferred embodiment, the present invention may be further configured such that: a locking bolt is installed at the bottom end of the hydraulic sub-rod inside the second hydraulic component, and a gasket is provided on the outside of the locking bolt.

[0022] In a preferred embodiment, the present invention can be further configured such that: both ends of the internal transmission shaft of the dual-axis motor are equipped with cross-shaped plugs, one of which is adapted to be inserted into the socket at the bottom of the lead screw, and the other cross-shaped plug is adapted to be inserted into the transmission component.

[0023] By adopting the above technical solution, the beneficial effects achieved by the present invention are as follows:

[0024] 1. This invention installs a mold support mechanism on a workbench and a forming mechanism on the mold support mechanism. By using the six points of the forming mechanism to replace the multi-point transmission structure, only longitudinal extrusion force needs to be applied to the forming mechanism to obtain precise molding of the selected sheet material. The sheet material after preliminary molding can be quickly formed, thereby avoiding the problem of complicated operation of traditional multi-point molds.

[0025] 2. The present invention installs two sets of symmetrically distributed blade shaping mechanisms on the mold support mechanism. After the forming mechanism initially die-casts the plate, the bottom second corner mold, the top first corner mold, and the bottom first corner mold and the top second corner mold are simultaneously stretched into the two sets of blade shaping mechanisms by the traction rod and the pull plate. With the two sets of forming mechanisms rotating at the same speed and in opposite directions, the two ends of the initially formed plate can be further bent.

[0026] 3. By setting the top first corner mold and the top second corner mold as separate structures, after the two sets of blade forming mechanisms have bent the two ends of the plate, the top first corner mold and the top second corner mold only need to be pulled out from the two sets of blade forming mechanisms. At this time, the fully formed blade can be effectively peeled off, which can facilitate the subsequent processing of the plate and improve the processing efficiency. Attached Figure Description

[0027] Figure 1 This is a schematic diagram illustrating the use of the present invention;

[0028] Figure 2 This is a schematic diagram of the mold support mechanism of the present invention;

[0029] Figure 3 This is a schematic diagram of the blade shaping mechanism of the present invention;

[0030] Figure 4 This is an exploded view of the molding mechanism of the present invention;

[0031] Figure 5 This is a partial schematic diagram of the present invention;

[0032] Figure 6 This is a schematic diagram of the molding mechanism of the present invention;

[0033] Figure 7 For the present invention Figure 6 Enlarged view of point A in the middle;

[0034] Figure 8 This is a schematic diagram of the mold opening and closing mechanism of the present invention;

[0035] Figure 9 For the present invention Figure 8 Enlarged diagram of point B in the middle.

[0036] Figure label:

[0037] 100. Mold support mechanism; 110. Base; 1101. First bolt; 1102. Bearing; 120. First hydraulic component; 1201. Chuck; 1202. Traction rod; 1203. Pull plate; 130. Linkage shaft;

[0038] 200. Molding mechanism; 210. Base plate; 2101. Pad; 2102. Auxiliary component; 2103. Transmission component; 2104. Bottom clamp; 220. Chain; 230. Suspension; 240. Spring; 250. Top plate; 260. Top clamp; 270. Clip; 2701. Second bolt; 280. Foot pad;

[0039] 300. Blade shaping mechanism; 310. End rod; 3101. Load-bearing plate; 3102. Fixed outer plate; 320. Auxiliary rail plate; 330. Wheel disc;

[0040] 400, Forming mechanism; 410, First bending die; 420, Bottom first corner die; 430, Bottom second corner die; 440, Positioning plate; 4401, Guide rod; 450, Second bending die; 460, Top first corner die; 470, Top second corner die;

[0041] 500. Mold opening and closing mechanism; 510. Clamping seat; 5101. Chassis; 520. Dual-axis motor; 530. Lead screw; 540. Outer frame; 5401. Third bolt; 550. Push plate; 5501. Lever arm; 5502. Positioning component; 5503. Insert rod; 560. Second hydraulic component. Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.

[0043] It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the invention.

[0044] The following describes, with reference to the accompanying drawings, some embodiments of the present invention, providing a multi-point forming mold for curved blades of a three-dimensional flow fan.

[0045] Example 1:

[0046] Combination Figures 1 to 9As shown, the present invention provides a multi-point forming mold for curved blades of a three-dimensional flow fan, comprising a mold support mechanism 100, a molding mechanism 200 mounted on the mold support mechanism 100, a blade shaping mechanism 300 mounted on the molding mechanism 200, a forming mechanism 400 mounted inside the molding mechanism 200, and a mold opening and closing mechanism 500 mounted on the molding mechanism 200. The mold support mechanism 100 provides stable support for the forming mechanism 400 and the molding mechanism 200. The molding mechanism 200 provides a support platform for the opening and closing of the forming mechanism 400. The forming mechanism 400 is used to form the sheet metal. The two sets of blade shaping mechanisms 300 are used to bend the formed material. The mold opening and closing mechanism 500 provides opening and closing kinetic energy for the forming mechanism 400 and bending kinetic energy for the two sets of blade shaping mechanisms 300.

[0047] The mold support mechanism 100 includes a base 110, two first bolts 1101 inserted into the base 110, a first hydraulic component 120 fixedly installed inside the base 110, a chuck 1201 installed on the first hydraulic component 120, two traction rods 1202 movably installed at both ends of the chuck 1201, and two pull plates 1203 movably installed on the two traction rods 1202, and the outer end of the guide rod 4401 is movably installed on the top end of the pull plate 1203;

[0048] The forming mechanism 400 includes two positioning plates 440 and two guide rods 4401, as well as a first curved mold 410 disposed on the top of the base 110 and fixed to the outside of the two first bolts 1101, a bottom first corner mold 420 and a bottom second corner mold 430 disposed at both ends of the first curved mold 410, a top second corner mold 470 inserted into the bottom first corner mold 420, and a top first corner mold 460 inserted into the bottom second corner mold 430;

[0049] A second bending arc mold 450 is movably installed inside the top first corner mold 460 and the top second corner mold 470;

[0050] Two positioning plates 440 are fixedly installed on the bottom first corner mold 420 and the bottom second corner mold 430 respectively, and two guide rods 4401 are fixedly installed inside the two positioning plates 440 respectively;

[0051] The molding mechanism 200 includes two pads 280 and two clips 270, a bottom clamp 2104 installed at the bottom of the first curved die 410, a bottom support plate 210 fixedly installed on the bottom clamp 2104, a suspension 230 fixedly installed inside the bottom support plate 210, a top support plate 250 movably installed outside the suspension 230, and a top clamp 260 fixedly installed at the bottom of the top support plate 250. The second curved die 450 is fixedly installed inside the top clamp 260, the first curved die 410 is fixedly installed inside the bottom clamp 2104, and the two clips 270 are respectively attached to the outer ends of the bottom support plate 210 and the top support plate 250. Two second bolts 2701 are inserted into the inside of the clips 270.

[0052] The suspension 230 has a U-shaped structure, and two springs 240 are movably mounted on the suspension 230;

[0053] Spring 240 is pressed between bottom support plate 210 and top support plate 250;

[0054] Two pads 280 are respectively fixedly installed on the first bending die 410 and the second bending die 450;

[0055] The mold opening and closing mechanism 500 includes a clamp 510 mounted on the base plate 210, a second hydraulic component 560 fixedly mounted inside the clamp 510, a housing 5101 mounted at the bottom end of the hydraulic rod inside the second hydraulic component 560, a dual-axis motor 520 fixedly mounted inside the housing 5101, a lead screw 530 movably mounted inside the clamp 510, an outer frame 540 fixedly mounted at the top of the suspension 230, and two third bolts 5401 inserted into the outer frame 540, with the top end of the lead screw 530 movably mounted inside the outer frame 540.

[0056] A booster plate 550 is movably mounted on the threaded section of the lead screw 530, and a lever arm 5501 is movably mounted on the outer end of the booster plate 550. A positioning member 5502 is movably mounted on the top of the lever arm 5501, and a plug rod 5503 is inserted into the positioning member 5502 and the lever arm 5501.

[0057] When the second hydraulic component 560 is in operation, its internal hydraulic rod drives the housing 5101 and the dual-axis motor 520 to rise. The dual-axis motor 520 will drive the lead screw 530 to rotate at a constant speed. The lead screw 530 will help the push plate 550 to rise smoothly. The positioning component 5502 and the lever arm 5501, which are fixed by the insertion rod 5503, will drive the top support plate 250 and the second bending mold 450 to rise and fall smoothly.

[0058] After the second curved die 450 and the first curved die 410 are opened and closed, the top first corner die 460 and the top second corner die 470 are pulled out. Then, the plate is placed on top of the first curved die 410, the bottom first corner die 420 and the bottom second corner die 430. The top first corner die 460 and the top second corner die 470 are used to perform preliminary insertion and positioning of the two ends of the plate. The second curved die 450 is pushed down again by the flipping screw 530. The descending second curved die 450, together with the top first corner die 460 and the top second corner die 470, can perform preliminary forming of the plate.

[0059] After the forming process is completed, the first hydraulic component 120 is operated until its internal hydraulic rod, together with the clamp 1201, pushes the two traction rods 1202 and the two pull plates 1203 to extend. The bottom first corner mold 420 and the bottom second corner mold 430 will be pressed and enter the inner cavity of the two sets of blade forming mechanisms 300.

[0060] When the second bending die 450 is not disengaged, the two sets of blade shaping mechanisms 300 will bend the two ends of the blade at the same speed and in reverse, while the middle structure of the blade will not be changed after bending.

[0061] After the second bending die 450 is disengaged, the simultaneous speed and reverse rotation of the two sets of blade shaping mechanisms 300 will streamline the overall blade after forming.

[0062] Example 2:

[0063] Combination Figures 2 to 6 As shown, based on Embodiment 1, the mold support mechanism 100 further includes two bearings 1102 installed inside the base 110 and two linkage shafts 130 installed inside the two bearings 1102.

[0064] The linkage shaft 130 consists of a shaft, a deflection gear, and a gear, with the gear being adapted to mesh with the teeth on the outside of the wheel 330.

[0065] Preferably, a column head is fixedly installed at the bottom end of the pull plate 1203, and the column head is movably installed at the outer end of the traction rod 1202. In the initial state, the clamp 1201 and the two traction rods 1202 form a triangular structure, and the base 110 is composed of two L-shaped legs and a horizontal plate. Two sets of clamping plates are installed on the top of the horizontal plate, and the first hydraulic component 120 is fixed in the two sets of clamping plates.

[0066] The bottom of the base plate 210 is fixedly installed with a pad 2101, a transmission component 2103 is movably installed on the outer end of the pad 2101, an auxiliary component 2102 is movably installed on the inner end of the pad 2101, and a chain 220 is connected to the transmission component 2103 and the auxiliary component 2102.

[0067] The auxiliary component 2102 is adapted to mesh with the deflection gear.

[0068] Preferably, the auxiliary component 2102 consists of two gears and a vertical shaft, and the diameter of the top gear in the auxiliary component 2102 is half the diameter of the bottom gear, while the diameter of the top gear is the same as that of the transmission component 2103.

[0069] The blade shaping mechanism 300 includes an end rod 310 fixedly installed in the base 110 and horizontally positioned, a load-bearing plate 3101 fixedly installed on the outer end of the end rod 310, a fixed outer plate 3102 movably installed on the top of the load-bearing plate 3101, four auxiliary rail plates 320 fixedly installed in the four corners of the fixed outer plate 3102, and a wheel 330 fixedly installed on the outside of the four auxiliary rail plates 320.

[0070] A T-shaped column head is fixedly installed in the middle of the outer side of the fixed outer plate 3102, and the guide rod 4401 is adapted to pass through the T-shaped column head;

[0071] Preferably, a reinforcing inner pad is fixedly installed inside the wheel 330, and the reinforcing inner pad has a slot. The wheel 330 is located in the middle of the outer side of the four auxiliary rails 320, wherein a rectangular horizontal groove is formed on the inner side of the auxiliary rails 320.

[0072] Example 3:

[0073] Combination Figures 6 to 9 As shown, in the above embodiment, a locking bolt is installed at the bottom end of the hydraulic sub-rod inside the second hydraulic component 560, and a washer is provided on the outside of the locking bolt.

[0074] Both ends of the internal drive shaft of the dual-axis motor 520 are equipped with cross-shaped plugs. One cross-shaped plug is adapted to be inserted into the socket at the bottom of the lead screw 530, and the other cross-shaped plug is adapted to be inserted into the transmission component 2103.

[0075] Preferably, the clamp 510 has two horizontal holes inside, and two studs are inserted into the two horizontal holes. The two studs are welded to the base plate 210. By installing nuts on the studs and using the two nuts to fix the clamp 510 to the outside of the base plate 210, the clamp 510, the base plate 210 and the first bending arc mold 410 will form a sufficiently stable pressure-bearing platform.

[0076] The working principle and usage process of this invention are as follows: The second hydraulic component 560 is pre-operated until its internal hydraulic rod drives the housing 5101 and the dual-axis motor 520 to rise upwards until the plug adapter at the top of the dual-axis motor 520 is engaged with the inside of the lead screw 530. As the dual-axis motor 520 starts and runs, the driven lead screw 530 will help the push plate 550 rise at a constant speed, and the lever arm 5501, which is movably installed at the outer end of the push plate 550, will push the positioning component 5502 and the top support plate 250 to rise upwards. The top clamp 260, which is fixed at the bottom of the top support plate 250, will lift the second bending die 450.

[0077] Next, the top first corner mold 460 and the bottom second corner mold 430 and the bottom first corner mold 420 are respectively pulled out. Then, the plate to be cast is placed on the inclined surface at the top of the first curved mold 410, the bottom first corner mold 420 and the bottom second corner mold 430. Then, the top first corner mold 460 and the top second corner mold 470 are pre-inserted toward the bottom second corner mold 430 and the bottom first corner mold 420 until the second curved mold 450 is pressed and then descends again. The second curved mold 450 will apply extrusion pressure to the top first corner mold 460 and the top second corner mold 470. Finally, the second curved mold 450, the top first corner mold 460 and the top second corner mold 470 can die-cast the plate into an S-shaped structure.

[0078] After the sheet metal is initially die-cast, the first hydraulic component 120 is operated until the hydraulic sub-rod inside the first hydraulic component 120, together with the clamp 1201, pulls the two traction rods 1202 toward the base 110. The outer end of the traction rod 1202 will drive the pull plate 1203, guide rod 4401 and positioning plate 440 to move outward laterally. The combined bottom first corner mold 420, top second corner mold 470 and bottom second corner mold 430 and top first corner mold 460 will be pulled into the interior of the two forming mechanisms 400, and the sheet metal that initially forms an S-shaped structure can then be stress-relieved.

[0079] When the hydraulic sub-rod control box 5101 and dual-axis motor 520 in the second hydraulic component 560 descend, and the bottom plug of the dual-axis motor 520 is inserted into the transmission component 2103, the transmission component 2103 will drive the chain 220 and the auxiliary component 2102 to rotate. The transmission component 2103 will also assist the rotation of the two linkage shafts 130. Finally, the two linkage shafts 130 will drive the two forming mechanisms 400 to rotate at the same speed but in opposite directions. The plate material after stress relief can then be processed into a streamlined bend.

[0080] Although embodiments of the invention have been shown and described, those skilled in the art will understand 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 claims and their equivalents.

Claims

1. A multi-point forming mold for curved blades of a three-dimensional flow fan, comprising a mold support mechanism (100), characterized in that, It also includes a molding mechanism (200) mounted on a mold support mechanism (100), a blade shaping mechanism (300) mounted on the molding mechanism (200), a forming mechanism (400) mounted inside the molding mechanism (200), and a mold opening and closing mechanism (500) mounted on the molding mechanism (200). The mold support mechanism (100) includes a base (110) and two first bolts (1101) inserted into the base (110). The forming mechanism (400) includes two positioning plates (440) and two guide rods (4401), as well as a first curved mold (410) disposed on the top of the base (110) and fixed outside the two first bolts (1101), a bottom first corner mold (420) and a bottom second corner mold (430) disposed at both ends of the first curved mold (410), a top second corner mold (470) inserted into the bottom first corner mold (420), and a top first corner mold (460) inserted into the bottom second corner mold (430). A second curved mold (450) is movably installed inside the top first corner mold (460) and the top second corner mold (470); The two positioning plates (440) are respectively fixedly installed on the bottom first corner mold (420) and the bottom second corner mold (430), and the two guide rods (4401) are respectively fixedly installed inside the two positioning plates (440); The molding mechanism (200) includes a bottom clamp (2104) installed at the bottom of the first curved die (410), a bottom support plate (210) fixedly installed on the bottom clamp (2104), a suspension (230) fixedly installed inside the bottom support plate (210), a top support plate (250) movably installed outside the suspension (230), and a top clamp (260) fixedly installed at the bottom of the top support plate (250). The second curved die (450) is fixedly installed inside the top clamp (260), and the first curved die (410) is fixedly installed inside the bottom clamp (2104). The two sets of blade shaping mechanisms (300) are used to bend the blades after die casting; The mold opening and closing mechanism (500) is used to control the opening and closing of the forming mechanism (400) and to supply power to the two sets of blade shaping mechanisms (300); The blade shaping mechanism (300) includes an end rod (310) fixedly installed in the base (110) and horizontally positioned, a load-bearing plate (3101) fixedly installed at the outer end of the end rod (310), a fixed outer plate (3102) movably installed at the top of the load-bearing plate (3101), four auxiliary rail plates (320) fixedly installed in the four corners of the fixed outer plate (3102), and a wheel (330) fixedly installed outside the four auxiliary rail plates (320). The mold support mechanism (100) also includes two bearings (1102) installed inside the base (110) and two linkage shafts (130) installed inside the two bearings (1102). The linkage shaft (130) consists of a shaft, a deflection gear, and a gear, and the gear is adapted to mesh with the toothed opening outside the wheel disc (330).

2. The multi-point forming mold for curved blades of a three-dimensional flow fan according to claim 1, characterized in that, The mold opening and closing mechanism (500) includes a clamp (510) mounted on a base plate (210), a second hydraulic component (560) fixedly mounted inside the clamp (510), a housing (5101) mounted at the bottom end of the hydraulic rod inside the second hydraulic component (560), a dual-axis motor (520) fixedly mounted inside the housing (5101), a lead screw (530) movably mounted inside the clamp (510), an outer frame (540) fixedly mounted at the top of the suspension (230), and two third bolts (5401) inserted into the outer frame (540), with the top end of the lead screw (530) movably mounted inside the outer frame (540). A booster plate (550) is movably mounted on the threaded section of the lead screw (530), and a lever (5501) is movably mounted on the outer end of the booster plate (550). A positioning member (5502) is movably mounted on the top of the lever (5501), and a plug rod (5503) is inserted into the positioning member (5502) and the lever (5501).

3. The multi-point forming mold for curved blades of a three-dimensional flow fan according to claim 1, characterized in that, The mold support mechanism (100) further includes a first hydraulic component (120) fixedly installed inside the base (110), a chuck (1201) installed on the first hydraulic component (120), two traction rods (1202) movably installed at both ends of the chuck (1201), and two pull plates (1203) movably installed on the two traction rods (1202), and the outer end of the guide rod (4401) is movably installed on the top of the pull plate (1203).

4. The multi-point forming mold for curved blades of a three-dimensional flow fan according to claim 1, characterized in that, The molding mechanism (200) also includes two pads (280) and two clips (270), and the two clips (270) are respectively attached to the outer ends of the bottom plate (210) and the top plate (250), and two second bolts (2701) are inserted into the inside of the clips (270). The two pads (280) are respectively fixedly installed on the first curved die (410) and the second curved die (450).

5. The multi-point forming mold for curved blades of a three-dimensional flow fan according to claim 1, characterized in that, The suspension (230) has a U-shaped structure, and two springs (240) are movably mounted on the suspension (230). The spring (240) is pressed between the bottom plate (210) and the top plate (250).

6. The multi-point forming mold for curved blades of a three-dimensional flow fan according to claim 1, characterized in that, The bottom of the base plate (210) is fixedly installed with a pad (2101), a transmission component (2103) movably installed on the outer end of the pad (2101), an auxiliary component (2102) movably installed on the inner end of the pad (2101), and a chain (220) connected to the transmission component (2103) and the auxiliary component (2102). The auxiliary component (2102) is adapted to mesh with the deflection gear.

7. The multi-point forming mold for curved blades of a three-dimensional flow fan according to claim 1, characterized in that, A T-shaped column head is fixedly installed in the middle of the outer side of the fixed outer plate (3102), and the guide rod (4401) is adapted to pass through the T-shaped column head.

8. A multi-point forming mold for curved blades of a three-dimensional flow fan according to claim 2, characterized in that, The bottom end of the hydraulic rod inside the second hydraulic component (560) is equipped with a locking bolt, and a gasket is provided on the outside of the locking bolt.

9. A multi-point forming mold for curved blades of a three-dimensional flow fan according to claim 2, characterized in that, Both ends of the internal drive shaft of the dual-axis motor (520) are equipped with cross-shaped plugs. One cross-shaped plug is adapted to be inserted into the socket at the bottom of the lead screw (530), and the other cross-shaped plug is adapted to be inserted into the transmission component (2103).