Axial-flow fan blade mold core cooling structure

Abstract

An axial flow fan blade mold core cooling structure comprises a mold core assembly and an insert assembly arranged on the mold core assembly, and a cooling water path used for cooling the mold core assembly is arranged between the mold core assembly and the insert assembly. According to the axial-flow fan blade mold core cooling structure, the mold core assembly is provided with the insert assembly, and the cooling water channel used for cooling the mold core assembly is arranged between the mold core assembly and the insert assembly, so that compared with a traditional cooling scheme, the axial-flow fan blade mold core cooling structure is simple to assemble by a bench worker, the insert can be directly assembled, a blocking spacer is not needed, the bench worker time is saved, and the production efficiency is improved. The phenomenon of stagnant water caused by improper assembly of a bench worker is avoided, the cooling cross sectional area is large, the water flow is high, the cooling effect is uniform and good, the cooling flow length ratio is smaller than the cooling flow length ratio of the blocking spacer, the mold core is fully cooled, shrinkage deformation of a product caused by temperature is reduced, and the product bounce value of a traditional cooling scheme is about 1.2; according to the cooling scheme, the jumping value is controlled to be 0.2-0.4 after the cooling water conveying mode is changed, and the requirements of customers are met.

Description

Technical Field

[0001] This utility model relates to the field of axial flow fan blade mold technology, and in particular to a cooling structure for an axial flow fan blade mold core. Background Technology

[0002] like Figures 10-12 As shown, the traditional axial flow fan core cooling structure uses four sets of φ14mm water wells 113 for cooling the front mold core 111 (fixed mold core) and the moving mold core 112. The problems with this cooling method are as follows: 1. A 2mm baffle is added between the water wells 113, reducing the cross-sectional area of ​​cooling ((14-2) / 2=6mm single-sided cooling cross-sectional area) and water flow. 2. If the baffle is not properly assembled, stagnant water (non-flowing) will not be detected in the water wells 113, rendering the cooling holes ineffective and affecting product shrinkage and deformation. 3. The long cooling water path results in a large difference between the inlet and outlet, affecting cooling efficiency. Therefore, this cooling method is suitable for products with relatively loose runout requirements (e.g., runout controlled within 1.5mm), but not for products with high runout requirements (e.g., runout controlled within 0.5mm).

[0003] Therefore, further improvements are necessary. Utility Model Content

[0004] The purpose of this invention is to provide a cooling structure for an axial flow fan blade mold core that is simple in structure, has high production efficiency, good cooling effect, good product quality, and strong practicality, so as to overcome the shortcomings of the prior art.

[0005] A cooling structure for an axial flow fan blade mold core designed for this purpose is characterized by comprising a mold core assembly and an insert assembly disposed on the mold core assembly, wherein a cooling water channel for cooling the mold core assembly is provided between the mold core assembly and the insert assembly.

[0006] The mold core assembly includes a fixed mold core, and the insert assembly includes a first water-cooling insert, with a first cooling water channel formed between the fixed mold core and the first water-cooling insert.

[0007] The first cooling water channel is ring-shaped and distributed both internally and externally between the fixed mold core and the first water channel insert.

[0008] The fixed mold core is provided with a first groove distributed inside and outside, and the first water-transporting insert is provided with a first rib distributed inside and outside. The first rib is inserted into the first groove, and a first cooling water channel is formed between the first rib and the first groove.

[0009] The first water-carrying insert is provided with a first water inlet hole and a first water outlet hole distributed inside and outside respectively, and the first cooling water channel is connected to the first water inlet hole and the first water outlet hole respectively.

[0010] The mold core assembly also includes a moving mold core, and the insert assembly also includes a second water channel insert. The fixed mold core and the moving mold core cooperate with each other, and a second cooling water channel is formed between the moving mold core and the second water channel insert.

[0011] The second cooling water channel is ring-shaped and distributed both internally and externally between the moving mold core and the second water channel insert.

[0012] The moving mold core is provided with a second groove distributed inside and outside, and the second water-cooling insert is provided with a second rib distributed inside and outside. The second rib is inserted into the second groove, and a second cooling water channel is formed between the second rib and the second groove.

[0013] The second water-carrying insert is provided with a second water inlet and a second water outlet, which are respectively distributed inside and outside the insert. The second cooling water passage is connected to the second water inlet and the second water outlet.

[0014] The fixed mold core has several first concave-convex mating parts arranged in a ring, and the moving mold core has several second concave-convex mating parts arranged in a ring. The first concave-convex mating parts and the second concave-convex mating parts cooperate with each other; a forming cavity for forming axial flow fan blades is formed between the fixed mold core and the moving mold core.

[0015] This utility model's axial flow fan blade mold core cooling structure features an insert assembly on the mold core component, with a cooling water channel between the mold core component and the insert assembly for cooling the mold core component. Compared to traditional cooling solutions, assembly is simpler, requiring only direct assembly of the inserts without the need for baffles, saving fitter time and eliminating the possibility of stagnant water due to improper assembly. The cooling cross-sectional area is large, the water flow rate is high, and the cooling effect is uniform and effective. The cooling flow length ratio is lower than that of baffle-based cooling, ensuring thorough cooling of the mold core and reducing product shrinkage and deformation caused by temperature. Traditional cooling solutions result in a product runout value of around 1.2, while this solution, by modifying the cooling water flow method, controls the runout value to 0.2-0.4, meeting customer requirements and significantly improving production stability. Attached Figure Description

[0016] Figure 1 This is a cross-sectional view of the core cooling structure in one embodiment of the present invention.

[0017] Figure 2 This is a schematic diagram of the overall structure of the mold core cooling structure in one embodiment of the present invention.

[0018] Figure 3 This is a schematic diagram of the overall structure of the core cooling structure in another aspect of one embodiment of the present invention.

[0019] Figure 4 This is a schematic diagram of the overall structure of the fixed mold core in one embodiment of the present invention.

[0020] Figure 5This is a schematic diagram of the overall structure of the fixed mold core in another position in one embodiment of the present invention.

[0021] Figure 6 This is a schematic diagram of the overall structure of the first water-carrying insert in one embodiment of the present invention.

[0022] Figure 7 This is a schematic diagram of the overall structure of the moving mold core in one embodiment of the present invention.

[0023] Figure 8 This is a schematic diagram of the overall structure of the moving mold core from another position in one embodiment of the present invention.

[0024] Figure 9 This is a schematic diagram of the overall structure of the second water-carrying insert in one embodiment of the present invention.

[0025] Figure 10 This is a schematic diagram showing the exploded structure of the front mold core and water well in a traditional mold core cooling structure.

[0026] Figure 11 This is a schematic diagram showing the exploded structure of the moving mold core and water well in a traditional mold core cooling structure.

[0027] Figure 12 This is a schematic diagram of the overall structure of a traditional mold core cooling structure. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0029] See Figures 1-9 This axial flow fan blade mold core cooling structure includes a mold core assembly and an insert assembly mounted on the mold core assembly. A cooling water channel for cooling the mold core assembly is provided between the mold core assembly and the insert assembly. The cooling water channel includes a first cooling water channel 3 and a second cooling water channel 10. Through optimized water circulation, the product receives sufficient cooling, reducing shrinkage and deformation, thereby reducing product vibration, improving product yield and performance, and significantly reducing the number of trial moldings and lowering trial molding costs. This mold core cooling structure is applied to precision molds such as automotive fan wheels.

[0030] The mold core assembly includes a fixed mold core 1, and the insert assembly includes a first water-cooling insert 2. A first cooling water channel 3 is formed between the fixed mold core 1 and the first water-cooling insert 2. The first cooling water channel 3 is used for cooling water to pass through in order to cool the fixed mold core 1.

[0031] The first cooling water channel 3 is ring-shaped and distributed both inside and outside between the fixed mold core 1 and the first water channel insert 2.

[0032] The fixed mold core 1 is provided with a first groove 4 distributed inside and outside, and the first water-transporting insert 2 is provided with a first rib 5 distributed inside and outside. The first rib 5 is inserted into the first groove 4, and a first cooling water channel 3 is formed between the first rib 5 and the first groove 4. The first cooling water channel 3 can be set according to the cooling shape of the product to achieve a sufficient cooling effect.

[0033] The first water-carrying insert 2 is provided with a first water inlet 6 and a first water outlet 7 respectively distributed inside and outside, and the first cooling water channel 3 is connected to the first water inlet 6 and the first water outlet 7 respectively.

[0034] The first cooling water passage 3 is provided with a first disconnection part 18. The first water inlet 6 and the first water outlet 7 are located on both sides of the first disconnection part 18, so that the first water inlet 6 and the first water outlet 7 are located at both ends of the first cooling water passage 3. External cooling water enters the first cooling water passage 3 from the first water inlet 6, then flows along the first cooling water passage 3, and finally flows out of the first cooling water passage 3 through the first water outlet 7.

[0035] The fixed mold core 1 is provided with a first mounting groove 19, the first water-transporting insert 2 is installed on the first mounting groove 19, and the first water-transporting insert 2 is fixed to the fixed mold core 1 by screws.

[0036] The mold core assembly also includes a moving mold core 8, and the insert assembly also includes a second water-cooling insert 9. The fixed mold core 1 and the moving mold core 8 cooperate with each other, and a second cooling water channel 10 is formed between the moving mold core 8 and the second water-cooling insert 9. The second cooling water channel 10 is used for cooling water to pass through in order to cool the moving mold core 8.

[0037] The second cooling water channel 10 is ring-shaped and distributed both inside and outside between the moving mold core 8 and the second water channel insert 9.

[0038] The moving mold core 8 is provided with a second groove 11 distributed inside and outside, and the second water-cooling insert 9 is provided with a second rib 12 distributed inside and outside. The second rib 12 is inserted into the second groove 11, and a second cooling water channel 10 is formed between the second rib 12 and the second groove 11. The second cooling water channel 10 can be set according to the cooling shape of the product to achieve a sufficient cooling effect.

[0039] The second water-carrying insert 9 is provided with a second water inlet hole 13 and a second water outlet hole 14 distributed inside and outside respectively, and the second cooling water passage 10 is connected to the second water inlet hole 13 and the second water outlet hole 14 respectively.

[0040] The second cooling water passage 3 is provided with a second disconnection 20. The second water inlet 13 and the second water outlet 14 are located on both sides of the second disconnection 20, so that the second water inlet 13 and the second water outlet 14 are located at both ends of the second cooling water passage 10. External cooling water enters the second cooling water passage 10 from the second water inlet 13, then flows along the second cooling water passage 10, and finally flows out of the second cooling water passage 10 through the second water outlet 14.

[0041] The moving mold core 8 is provided with a second mounting groove 21, and the second water-transporting insert 9 is installed on the second mounting groove 21 and fixed to the moving mold core 8 by screws.

[0042] The fixed mold core 1 has a plurality of first concave-convex mating parts 15 arranged in a ring, and the moving mold core 8 has a plurality of second concave-convex mating parts 16 arranged in a ring. The first concave-convex mating parts 15 and the second concave-convex mating parts 16 cooperate with each other; a forming cavity 17 for forming axial flow fan blades is formed between the fixed mold core 1 and the moving mold core 8.

[0043] The above describes the preferred embodiments of this utility model, illustrating and describing its basic principles, main features, and advantages. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made without departing from the spirit and scope of this utility model, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A cooling structure for an axial flow fan blade core, characterized in that: It includes a mold core assembly and an insert assembly disposed on the mold core assembly, and a cooling water channel for cooling the mold core assembly is provided between the mold core assembly and the insert assembly; The mold core assembly includes a fixed mold core (1), and the insert assembly includes a first water-cooling insert (2). A first cooling water channel (3) is formed between the fixed mold core (1) and the first water-cooling insert (2). The first cooling water channel (3) is ring-shaped and distributed inside and outside between the fixed mold core (1) and the first water channel insert (2).

2. The axial flow fan blade core cooling structure according to claim 1, characterized in that: The fixed mold core (1) is provided with a first groove (4) distributed inside and outside, and the first water-transporting insert (2) is provided with a first rib (5) distributed inside and outside. The first rib (5) is inserted into the first groove (4), and a first cooling water channel (3) is formed between the first rib (5) and the first groove (4).

3. The axial flow fan blade core cooling structure according to claim 2, characterized in that: The first water-carrying insert (2) is provided with a first water inlet (6) and a first water outlet (7) respectively distributed inside and outside, and the first cooling water channel (3) is connected to the first water inlet (6) and the first water outlet (7) respectively.

4. The axial flow fan blade core cooling structure according to claim 3, characterized in that: The mold core assembly also includes a moving mold core (8), and the insert assembly also includes a second water-cooling insert (9). The fixed mold core (1) and the moving mold core (8) cooperate with each other, and a second cooling water channel (10) is formed between the moving mold core (8) and the second water-cooling insert (9).

5. The axial flow fan blade core cooling structure according to claim 4, characterized in that: The second cooling water channel (10) is ring-shaped and distributed inside and outside between the moving mold core (8) and the second water channel insert (9).

6. The axial flow fan blade core cooling structure according to claim 5, characterized in that: The moving mold core (8) is provided with a second groove (11) distributed inside and outside, and the second water-cooling insert (9) is provided with a second rib (12) distributed inside and outside. The second rib (12) is inserted into the second groove (11), and a second cooling water channel (10) is formed between the second rib (12) and the second groove (11).

7. The axial flow fan blade core cooling structure according to claim 6, characterized in that: The second water-carrying insert (9) is provided with a second water inlet (13) and a second water outlet (14) respectively distributed inside and outside, and the second cooling water channel (10) is connected to the second water inlet (13) and the second water outlet (14) respectively.

8. The axial flow fan blade core cooling structure according to claim 5, characterized in that: The fixed mold core (1) is provided with a number of first concave-convex mating parts (15) in a ring, and the moving mold core (8) is provided with a number of second concave-convex mating parts (16) in a ring. The first concave-convex mating parts (15) and the second concave-convex mating parts (16) cooperate with each other; a forming cavity (17) for forming axial flow fan blades is formed between the fixed mold core (1) and the moving mold core (8).

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